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WO2013183193A1 - Mobile terminal device - Google Patents

Mobile terminal device Download PDF

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Publication number
WO2013183193A1
WO2013183193A1 PCT/JP2013/000089 JP2013000089W WO2013183193A1 WO 2013183193 A1 WO2013183193 A1 WO 2013183193A1 JP 2013000089 W JP2013000089 W JP 2013000089W WO 2013183193 A1 WO2013183193 A1 WO 2013183193A1
Authority
WO
WIPO (PCT)
Prior art keywords
housing
region
terminal device
carbon fiber
mobile terminal
Prior art date
Application number
PCT/JP2013/000089
Other languages
French (fr)
Japanese (ja)
Inventor
白石　充孝
Original Assignee
Ｎｅｃカシオモバイルコミュニケーションズ株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ｎｅｃカシオモバイルコミュニケーションズ株式会社 filed Critical Ｎｅｃカシオモバイルコミュニケーションズ株式会社
Publication of WO2013183193A1 publication Critical patent/WO2013183193A1/en

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Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/1613—Constructional details or arrangements for portable computers
    • G06F1/1626—Constructional details or arrangements for portable computers with a single-body enclosure integrating a flat display, e.g. Personal Digital Assistants [PDAs]
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/1613—Constructional details or arrangements for portable computers
    • G06F1/1633—Constructional details or arrangements of portable computers not specific to the type of enclosures covered by groups G06F1/1615 - G06F1/1626
    • G06F1/1656—Details related to functional adaptations of the enclosure, e.g. to provide protection against EMI, shock, water, or to host detachable peripherals like a mouse or removable expansions units like PCMCIA cards, or to provide access to internal components for maintenance or to removable storage supports like CDs or DVDs, or to mechanically mount accessories
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/18—Telephone sets specially adapted for use in ships, mines, or other places exposed to adverse environment
    • H04M1/185—Improving the rigidity of the casing or resistance to shocks

Definitions

  • the present invention relates to a mobile terminal device, and more particularly to a mobile terminal device using a thin flat housing.
  • mobile terminal devices such as mobile phones and smartphones have become widespread.
  • a user often carries and uses a mobile terminal device, for example, when the user accidentally drops the mobile terminal device, a strong impact is applied to the mobile terminal device.
  • Patent Document 1 discloses a technique related to an electronic device casing that can ensure sufficient strength even if it is thinned.
  • the electronic device casing disclosed in Patent Document 1 uses a base material whose main component is carbon fiber reinforced plastic.
  • This substrate is composed of a plurality of layers, and the multiple carbon fibers contained in the outermost layer are continuous fibers oriented in one direction. The carbon fibers are oriented parallel to the diagonal direction of the substrate.
  • Patent Document 2 discloses a technique related to a carriage mechanism formed by laminating a plurality of carbon fibers.
  • Patent Document 3 discloses a technique related to a carbon fiber laminate that can obtain excellent surface quality.
  • an object of the present invention is to improve the impact resistance of a casing of a mobile terminal device.
  • a mobile terminal device is a mobile terminal device including a housing, and the housing includes a first carbon fiber that extends in a first direction that is a longitudinal direction of the housing. 1 region, and a second region including a second carbon fiber provided in at least a part of a longitudinal end portion of the housing and extending in a second direction intersecting the first direction. .
  • the impact resistance of the casing of the mobile terminal device can be improved.
  • FIG. 1 is a top view showing a mobile terminal device according to a first exemplary embodiment
  • 1B is a cross-sectional view taken along IB-IB of the mobile terminal device shown in FIG. 1A.
  • FIG. 3 is a top view of a casing of the mobile terminal device according to the first exemplary embodiment;
  • FIG. It is the perspective view which looked at the portable terminal device concerning Embodiment 1 from the housing
  • FIG. 3 is an exploded perspective view illustrating an example of a housing included in the mobile terminal device according to the first exemplary embodiment.
  • FIG. 3 is an exploded perspective view illustrating an example of a housing included in the mobile terminal device according to the first exemplary embodiment.
  • FIG. 6 is an exploded perspective view illustrating another example of a housing included in the mobile terminal device according to the first exemplary embodiment.
  • FIG. 6 is a bottom view showing another example of a housing included in the mobile terminal device according to the first exemplary embodiment;
  • FIG. 6 is a bottom view showing another example of a housing included in the mobile terminal device according to the first exemplary embodiment;
  • It is the perspective view which looked at the portable terminal device concerning Embodiment 2 from the housing
  • FIG. 1A to 1C are diagrams illustrating a mobile terminal device according to a first exemplary embodiment.
  • FIG. 1A is a top view of the mobile terminal device according to the present exemplary embodiment.
  • 1B is a cross-sectional view taken along the line IB-IB of the mobile terminal device shown in FIG. 1A.
  • FIG. 1C is a top view (a diagram excluding a display unit) of the housing of the mobile terminal device according to the present embodiment.
  • the frame member 5, the battery 6, the substrate 7, and the antennas 9_1 and 9_2 are accommodated in a space formed by joining the display unit 4 and the housing 10. Yes.
  • the mobile terminal device 1 according to the present embodiment is, for example, a smartphone, a tablet-type mobile terminal device, a mobile phone, a game machine, an electronic book terminal, or the like.
  • the display unit 4 includes a panel 2 and a display panel 3.
  • the panel 2 is a member for protecting the display panel 3 from the external environment.
  • Panel 2 may be a touch panel.
  • the display panel 3 is affixed to the panel 2 using an adhesive or a double-sided tape.
  • the display panel 3 is, for example, a liquid crystal panel or an organic EL (Electro Luminescence) panel.
  • the battery 6 and the substrate 7 are fixed to the frame member 5 using screws or the like.
  • the battery 6 and the substrate 7 are fixed to the frame member 5 from the housing 10 side.
  • the frame member 5 to which the battery 6 and the substrate 7 are fixed is fixed to the housing 10 using screws or the like.
  • the battery 6 is, for example, a lithium ion secondary battery.
  • a circuit element 8 is provided on the substrate 7.
  • the circuit element 8 is, for example, an integrated circuit device such as a processor, a memory, or a communication module for driving a mobile terminal device, an image sensor for a camera, or the like.
  • the frame member 5 is a member for holding the battery 6 and the substrate 7, it needs a certain level of strength. Therefore, the frame member 5 is preferably formed using a metal material. Examples of the material used for the frame member 5 include magnesium alloy, aluminum, aluminum alloy, and stainless steel. In view of weight reduction of the mobile terminal device 1, it is preferable to use a magnesium alloy. If the strength can be secured, the frame member 5 may be formed using a resin material.
  • the antennas 9_1 and 9_2 are provided at the longitudinal ends of the housing 10.
  • the case where the two antennas 9_1 and 9_2 are provided at both end portions in the longitudinal direction of the housing 10 is shown, but one antenna may be provided. Further, the antenna may be provided in a portion other than the end portion in the longitudinal direction of the housing 10.
  • FIG. 2 is a perspective view of the mobile terminal device according to the present embodiment as viewed from the housing 10 side.
  • FIG. 3 is a bottom view (that is, a view seen from the housing 10 side) showing an example of the housing 10 included in the mobile terminal device according to the present embodiment.
  • the casing 10 included in the mobile terminal device according to the present embodiment is configured using a carbon composite material (carbon fiber reinforced plastic (CFRP)) in order to maintain the strength of the mobile terminal device.
  • CFRP carbon fiber reinforced plastic
  • the carbon composite material is a composite material using carbon fiber as a reinforcing material and resin such as epoxy resin as a base material, and has both high strength and lightness.
  • the housing 10 has a first region 11 and a second region 12.
  • the first region 11 includes a carbon fiber (first carbon fiber) extending in the longitudinal direction (first direction) d1 of the housing 10.
  • the second region 12 is a carbon fiber (second carbon fiber) provided in at least a part of the longitudinal end portion of the housing 10 and extending in the second direction d2 intersecting the first direction d1. It is composed.
  • the second region 12 is provided at both ends of the casing 10 in the longitudinal direction.
  • the first direction d1 and the second direction d2 are typically orthogonal.
  • the housing 10 mainly includes a first region 11.
  • casing 10 shown in FIG. 2 is formed so that it may have a curve so that it may fit a user's hand, the back surface of the housing
  • the side surface 15 of the housing 10 may be formed using a resin material.
  • the carbon composite material can be formed by placing the carbon composite material at a predetermined location on the mold of the housing 10 and performing injection molding.
  • Carbon composite material containing carbon fiber has a property that strength is strong along the direction of carbon fiber. Therefore, the impact resistance in the longitudinal direction of the housing 10 can be improved by setting the orientation of the carbon fibers in the first region 11 mainly constituting the housing 10 to the longitudinal direction d1 of the housing 10. That is, when the mobile terminal device is dropped, a large impact is applied in the longitudinal direction of the casing 10, but the casing 10 is configured by setting the orientation of the carbon fiber in the first region 11 to the longitudinal direction d1 of the casing 10. The longitudinal strength of the casing 10 can be improved, and the impact resistance in the longitudinal direction of the housing 10 can be improved.
  • the orientation of the carbon fibers in the second region 12 provided at the longitudinal end of the housing 10 is set to a second direction d2 that intersects the longitudinal direction d1 of the housing 10, so that the housing 10 It is possible to improve the impact resistance at the end in the longitudinal direction. That is, by setting the direction of the carbon fiber at the longitudinal end of the housing 10 to the second direction d2, even if a sharp impact is locally applied to the longitudinal end of the housing 10, this impact is longitudinally applied. It can be received by carbon fibers extending in the direction, and the impact can be dispersed.
  • the first region 11 of the housing 10 includes projecting portions 13 ⁇ / b> _ ⁇ b> 1 and 13 ⁇ / b> _ ⁇ b> 2 projecting in the first direction d ⁇ b> 1 at the longitudinal end portion of the housing 10. Also good.
  • the protrusions 13_1 and 13_2 protrude from the end of the housing 10 in the second direction d2 toward the outside of the housing 10 in the first direction d1.
  • the second region 12 can be provided between the protruding portion 13_1 and the protruding portion 13_2.
  • the housing 10 may have a curvature structure at the longitudinal end portion of the housing 10.
  • the vertex 19 of the portion having the curvature is a portion that is likely to collide when dropped, it is preferable that the second region 12 includes the vertex 19.
  • the vertex 19 of the portion having the curvature is, in other words, the most protruding portion in the longitudinal direction of the housing 10.
  • FIG. 4 is an exploded perspective view showing an example of the housing 10 included in the mobile terminal device according to the present embodiment.
  • the housing 10 can be formed by laminating a plurality of carbon fiber layers 21 to 24 on the main surface of the housing 10.
  • a second region 12 is formed.
  • the longitudinal direction of the housing 10 is provided.
  • the impact resistance in can be further improved.
  • the carbon fiber layer 21 arranged on the outermost side has the most influence on the impact resistance of the housing 10. Therefore, the impact resistance of the housing 10 can be further improved by providing the first region 11 and the second region 12 in the carbon fiber layer 21 disposed on the outermost side.
  • the direction of the carbon fibers in the first region 11 of the carbon fiber layer 21 disposed on the outermost side (the side touching the user's hand) of the casing 10 among the plurality of carbon fiber layers is the longitudinal direction of the casing 10.
  • the carbon fiber layers 22 and 23 (second carbon fiber layers) disposed inside the housing with respect to the carbon fiber layer 21 are arranged.
  • You may comprise with the carbon fiber extended in the 2nd direction d2.
  • the carbon fiber layer 24 (third carbon fiber layer) may be composed of carbon fibers extending in the first direction d1.
  • the thermal conductivity in the fiber direction of the carbon fibers is about 20 to 30 times the thermal conductivity in the lamination direction of the carbon fibers. Therefore, as shown in FIG. 4, the carbon fiber direction of the carbon fiber layer 24 disposed on the innermost side of the housing 10 among the plurality of carbon fiber layers 21 to 24 is set as the longitudinal direction d1 of the housing 10.
  • the heat generated from the circuit element 8 or the like provided inside the housing 10 can be diffused in the longitudinal direction of the housing 10 before the heat is diffused to the outside of the housing 10.
  • FIG. 5 is an exploded perspective view showing another example of the housing 10 provided in the mobile terminal device according to the present embodiment.
  • the first region 11 and the second region 12 may be formed in each of 24 ′.
  • casing 10 can be improved more by making the carbon fiber layer which has the 1st area
  • the orientation of the carbon fiber at the location corresponding to the second region is the second direction d2 that intersects the longitudinal direction of the housing 10 in all the carbon fiber layers 21 to 24 ′.
  • the impact resistance at the longitudinal end of the body 10 can be further improved.
  • the carbon fiber layers constituting the housing 10 are four layers, but the number of carbon fiber layers can be arbitrarily determined. Moreover, the direction of the carbon fiber of each carbon fiber layer can also be determined arbitrarily.
  • FIG. 6 is a bottom view showing another example of the housing 10 included in the mobile terminal device according to the present embodiment.
  • L1 is longer than the length L2 of the second region 32 in the first direction d1 (the length at the center of the second region 32).
  • the length of the second region 32 in the first direction d1 is the longest at the boundary portions 33_1 and 33_2 where the second region 32 contacts the projecting portions 13_1 and 13_2, respectively.
  • the length of the boundary portions 33_1 and 33_2 can be increased.
  • the orientation of the carbon fibers in the first region 11 is the longitudinal direction d1 of the housing 10
  • the orientation of the carbon fibers in the second region 32 is the first direction intersecting with the longitudinal direction d1 of the housing 10. 2 direction d2.
  • FIG. 7 is a bottom view showing another example of the housing 10 included in the mobile terminal device according to the present embodiment.
  • the second region 42 is provided so as to surround the entire end portion in the longitudinal direction of the housing 10.
  • the orientation of the carbon fibers in the first region 41 is the longitudinal direction d1 of the housing 10
  • the orientation of the carbon fibers in the second region 42 is the second direction d2 that intersects the first direction d1. It is.
  • region was each provided in the both ends of the longitudinal direction of the housing
  • the orientation of the carbon fiber constituting the first region 11 is the longitudinal direction d1 of the housing 10.
  • the orientation of the carbon fibers constituting the first region 11 may be mainly the longitudinal direction d1 of the housing 10, and as the carbon fibers constituting the first region 11, the orientation of the carbon fibers is the second direction.
  • the carbon fiber which is d2 may be included.
  • the orientation of the carbon fibers constituting the second region 12 is the second direction d2.
  • the orientation of the carbon fibers constituting the second region 12 may be mainly in the second direction d2, and the carbon fibers constituting the second region 12 are oriented in the first direction d1.
  • a certain carbon fiber may be included.
  • the housing 10 included in the mobile terminal device includes the first region 11 including the carbon fiber extending in the longitudinal direction (first direction) d1 of the housing 10 and the housing. And a second region 12 including carbon fibers provided in at least a part of the longitudinal end of the body 10 and extending in a second direction d2 intersecting the first direction d1. Therefore, the impact resistance in the longitudinal direction of the casing 10 can be improved, and the impact resistance at the end in the longitudinal direction of the casing 10 can be improved.
  • the casing 10 is configured by setting the orientation of the carbon fiber in the first region 11 to the longitudinal direction d1 of the casing 10.
  • the longitudinal strength of the casing 10 can be improved, and the impact resistance in the longitudinal direction of the housing 10 can be improved.
  • a sharp impact is locally applied to the longitudinal end of the housing 10 by setting the orientation of the carbon fiber at the longitudinal end of the housing 10 to the second direction d2, It can be received by carbon fibers extending in the direction, and the impact can be dispersed.
  • the invention according to this embodiment can improve the impact resistance of the casing of the mobile terminal device.
  • FIG. 8 is a perspective view of the mobile terminal device according to the present embodiment as viewed from the housing side.
  • FIG. 9 is a bottom view showing an example of a housing provided in the mobile terminal device according to the present embodiment.
  • the housing 50 further includes a third region 54 made of a material that can transmit radio waves.
  • the housing 10 is made of a carbon composite material that is a conductive material, radio waves received by the antennas 9_1 and 9_2 may be shielded.
  • radio waves can be transmitted to a position corresponding to the position where the antennas 9_1 and 9_2 (see FIG. 1C) are provided in the housing 50.
  • a third region 54 made of a different material is provided. With such a configuration, it is possible to suppress shielding of radio waves received by the antennas 9_1 and 9_2, and it is possible to suppress a decrease in antenna sensitivity.
  • an insulating material such as a resin material can be used as a material constituting the third region 54.
  • the housing 50 has a first area 51, a second area 52, and a third area 54.
  • the first region 51 includes a carbon fiber (first carbon fiber) extending in the longitudinal direction (first direction) d1 of the housing 50.
  • the second region 52 is provided on at least a part of the longitudinal end portion of the housing 50, and carbon fibers (second carbon fibers) extending in the second direction d2 intersecting the first direction d1. It is composed.
  • the second region 52 and the third region 54 are provided at both ends in the longitudinal direction of the housing 50.
  • the first direction d1 and the second direction d2 are typically orthogonal.
  • the housing 50 is mainly composed of a first region 51.
  • the first region 51 includes projecting portions 53_1 and 53_2 projecting in the first direction d1 at the longitudinal end portion of the housing 50.
  • the protrusions 53_1 and 53_2 protrude from the end of the housing 50 in the second direction d2 toward the outside of the housing 50 in the first direction d1.
  • the third region 54 is provided so as to be surrounded by the protrusions 53_1 and 53_2 and the second region 52.
  • casing 50 shown in FIG. 8 is formed so that it may have a curve so that a user's hand may be fitted, you may form the back surface of the housing
  • the side surface 55 of the housing 50 may be formed using a resin material.
  • the casing 50 of the mobile terminal device is formed using a portion (the first region 51 and the second region 52) formed using the carbon composite material and the resin material. Portions 54 and 55.
  • the housing 50 having the carbon composite material and the resin material can be formed, for example, by placing the carbon composite material at a predetermined location on the mold of the housing 50 and performing injection molding.
  • Carbon composite material containing carbon fiber has a property that strength is strong along the direction of carbon fiber. Therefore, the impact resistance in the longitudinal direction of the housing 50 can be improved by setting the orientation of the carbon fibers in the first region 51 mainly constituting the housing 50 to the longitudinal direction d1 of the housing 50. That is, when the mobile terminal device is dropped, a large impact is applied in the longitudinal direction of the housing 50, but the orientation of the carbon fibers in the first region 51 is set to the longitudinal direction d1 of the housing 50, so that the housing 50 The longitudinal strength of the casing 50 can be improved, and the impact resistance in the longitudinal direction of the housing 50 can be improved.
  • the third region 54 is made of a resin material or the like, the strength is weaker than that of the first region 51. For this reason, if the third region 54 is provided at the longitudinal end of the housing 50, the strength of the entire housing 50 is weakened. For example, if an impact is applied to the end of the housing 50, the antennas 9_1 and 9_2 are also impacted. May be transmitted and the antennas 9_1 and 9_2 may be damaged. Therefore, in the mobile terminal device according to the present embodiment, in order to protect the third region 54 and the antennas 9_1 and 9_2 from the impact applied from the outside, the second region 52 is provided at the longitudinal end of the housing 50. Provided.
  • the plastic deformation of the 3rd field 54 is controlled by the restoring force of carbon fiber by making the direction of the carbon fiber of the 2nd field 52 into the 2nd direction d2 which intersects with longitudinal direction d1 of case 50 It is possible to improve the impact resistance at the end of the casing 50 in the longitudinal direction.
  • the casing 50 may have a curvature structure at the longitudinal end portion of the casing 50.
  • the vertex 59 of the portion having the curvature is a portion that easily collides when dropped, it is preferable that the second region 52 includes this vertex 59.
  • the vertex 59 of the portion having the curvature is, in other words, the most protruding portion in the longitudinal direction of the housing 10.
  • FIG. 10 is an exploded perspective view showing an example of the housing 50 provided in the mobile terminal device according to the present embodiment.
  • the housing 50 can be formed by laminating a plurality of carbon fiber layers 61 to 64 on the main surface of the housing 50.
  • a second region 52 is formed.
  • the hole 56 provided in each of the carbon fiber layers 61 to 64 is a portion corresponding to the third region 54, and the hole 56 is provided with an insulating material such as a resin material.
  • the longitudinal direction of the housing 50 is provided.
  • the impact resistance in can be further improved.
  • the carbon fiber layer 61 disposed on the outermost side of the housing 50 with the second region 52 including carbon fibers extending in the second direction d2 intersecting the longitudinal direction d1 of the housing 50 The strength at the end in the longitudinal direction of the housing 50 can be further improved.
  • the carbon fiber layer 61 disposed on the outermost side has the most influence on the impact resistance of the housing 50. Therefore, the impact resistance of the housing 50 can be further improved by providing the first region 51 and the second region 52 in the carbon fiber layer 61 disposed on the outermost side.
  • the carbon fiber direction of the first region 51 of the carbon fiber layer 61 disposed on the outermost side (the side touching the user's hand) of the casing 50 among the plurality of carbon fiber layers is the longitudinal direction of the casing 50.
  • the carbon fiber layers 62 and 63 (second carbon fiber layers) disposed on the inner side of the housing than the carbon fiber layer 61
  • the strength in the second direction d2 intersecting the longitudinal direction of the housing 50 can be increased while maintaining the strength in the longitudinal direction d1 of the housing 50.
  • the thermal conductivity in the fiber direction of the carbon fibers is about 20 to 30 times the thermal conductivity in the lamination direction of the carbon fibers. Therefore, as shown in FIG. 10, the carbon fiber direction of the carbon fiber layer 64 disposed on the innermost side of the housing 50 among the plurality of carbon fiber layers 61 to 64 is defined as the longitudinal direction d1 of the housing 50.
  • the heat generated from the circuit element 8 or the like provided inside the housing 50 can be diffused in the longitudinal direction of the housing 50 before the heat is diffused to the outside of the housing 50. Thereby, when a user picks up a portable terminal device, it can make it hard to feel the heat by the heat_generation
  • FIG. 11 is an exploded perspective view showing another example of the housing 50 provided in the mobile terminal device according to the present embodiment.
  • a first region 51 and a second region 52 may be formed in each of 64 '.
  • casing 50 can be improved more by making the carbon fiber layer which has the 1st area
  • the orientation of the carbon fiber at the location corresponding to the second region is the second direction d2 that intersects the longitudinal direction of the housing 50 in all the carbon fiber layers 61 to 64 ′.
  • the impact resistance at the longitudinal end of the body 50 can be further improved.
  • the carbon fiber layers constituting the housing 50 are four layers, but the number of carbon fiber layers can be arbitrarily determined. Moreover, the direction of the carbon fiber of each carbon fiber layer can also be determined arbitrarily.
  • FIG. 12 is a bottom view showing another example of the housing 50 provided in the mobile terminal device according to the present embodiment.
  • the length L11 of the second region 72 is longer than the length L12 of the second region 72 in the first direction d1 (the length at the center of the second region 72).
  • the length of the second region 72 in the first direction d1 is the longest in the portion where the inner walls of the protrusions 53_1 and 53_2 and the second region 72 are in contact with each other.
  • the length L11 of the boundary portions 73_1 and 73_2 is preferably longer than the width L13 of the protruding portions 53_1 and 53_2. In this manner, by increasing the length of the boundary portions 73_1 and 73_2 where the second region 72 and each of the projecting portions 53_1 and 53_2 are in contact with each other, the stress concentration on the boundary portions 73_1 and 73_2 can be reduced, and the boundary portion 73_1. , 73_2 can be further increased.
  • the length of the boundary portions 73_1 and 73_2 can be increased by providing the chamfered portions 71_1 and 71_2 at the boundary portion between the third region 54 and the second region 72.
  • the orientation of the carbon fibers in the first region 51 is the longitudinal direction d1 of the housing 50
  • the orientation of the carbon fibers in the second region 72 is a second direction that intersects the longitudinal direction d1 of the housing 50.
  • FIG. 13 is a bottom view showing another example of the housing 50 provided in the mobile terminal device according to the present embodiment.
  • the second region 82 is provided so as to surround the entire end portion in the longitudinal direction of the housing 50.
  • the second region 82 is in contact with the protruding portion 83_1 at the boundary portion 85_1, is in contact with the third region 84 at the boundary portion 86, and is in contact with the protruding portion 83_2 at the boundary portion 85_2.
  • the boundary portions 85_1, 86, and 85_2 are continuous linear.
  • the orientation of the carbon fibers in the first region 81 is the longitudinal direction d1 of the housing 50, and the orientation of the carbon fibers in the second region 82 is in the second direction d2 that intersects the first direction d1. is there.
  • FIG. 14 is a bottom view showing another example of the housing 50 provided in the mobile terminal device according to the present embodiment.
  • the second region 92 is provided so as to surround the entire end portion in the longitudinal direction of the housing 50.
  • the second region 92 is in contact with the protruding portion 93_1 at the boundary portion 95_1, is in contact with the third region 94 at the boundary portion 96, and is in contact with the protruding portion 93_2 at the boundary portion 95_2.
  • the boundary portions 95_1 and 95_2 are provided on the inner side in the longitudinal direction of the casing 50 with respect to the boundary portion 96. That is, the second region 92 is provided so as to be in contact with a part of both sides of the third region 94 in the second direction d2 (that is, both sides in the longitudinal direction of the third region 94). Further, the length L22 of the boundary portions 95_1 and 95_2 where the end portions of the protrusions 93_1 and 93_2 in the first direction d1 and the second region 92 contact each other is the length L22 of the second region 92 in the first direction d1. Longer than L21.
  • the orientation of the carbon fibers in the first region 91 is the longitudinal direction d1 of the housing 50
  • the orientation of the carbon fibers in the second region 92 is the second direction intersecting the first direction d1. d2.
  • FIG. 15 is a bottom view showing another example of the housing 50 provided in the mobile terminal device according to the present embodiment.
  • Each symbol of the casing 50 illustrated in FIG. 15 corresponds to each symbol of the casing 50 illustrated in FIG.
  • the housing 50 shown in FIG. 15 includes a plurality of carbon fiber layers having a first region 91 and a second region 92.
  • the first region 91 includes a carbon fiber layer 61 disposed on the outermost side of the housing 50 and a carbon fiber layer 64 ′ disposed on the innermost side of the housing 50.
  • the second region 92 may be provided.
  • the boundary portions 95_1 and 95_2 of the carbon fiber layer disposed on the outermost side of the housing 50 and the boundary of the carbon fiber layer disposed on the inner side of the housing 50 are arranged so as not to overlap in a direction perpendicular to the main surface of the housing 50 (in other words, a direction perpendicular to the main surface of the display unit 4).
  • the boundary portion between the first region and the second region formed in the plurality of carbon fiber layers is arranged so as not to overlap in the direction perpendicular to the main surface of the housing 50, thereby the boundary portion. It can suppress that the intensity
  • the case where the second region 52 and the third region 54 are provided at both ends in the longitudinal direction of the case 50 is shown.
  • the second region 52 and the third region 54 may be provided only on one of the longitudinal ends of the housing 50.
  • the direction of the carbon fibers constituting the first region is the longitudinal direction d1 of the housing 50.
  • the orientation of the carbon fibers constituting the first region may be mainly in the longitudinal direction d1 of the housing 50, and as the carbon fibers constituting the first region, the orientation of the carbon fibers is in the second direction d2.
  • a certain carbon fiber may be included.
  • the orientation of the carbon fibers constituting the second region is the second direction d2.
  • the orientation of the carbon fibers constituting the second region may be mainly in the second direction d2, and as the carbon fibers constituting the second region, carbon whose orientation is the first direction d1. Fibers may be included.
  • the housing 50 included in the mobile terminal device includes the first region 51 including carbon fibers extending in the longitudinal direction (first direction) d1 of the housing 50, the housing 50, and the housing 50. And a second region 52 including carbon fibers provided in at least a part of the longitudinal end portion of the body 50 and extending in a second direction d2 intersecting the first direction d1. Therefore, the impact resistance in the longitudinal direction of the casing 50 can be improved, and the impact resistance at the end in the longitudinal direction of the casing 50 can be improved.
  • the orientation of the carbon fibers in the first region 51 is set to the longitudinal direction d1 of the housing 50, so that the housing 50
  • the longitudinal strength of the casing 50 can be improved, and the impact resistance in the longitudinal direction of the housing 50 can be improved.
  • a sharp impact is locally applied to the longitudinal end of the casing 50 by setting the orientation of the carbon fiber at the longitudinal end of the casing 50 to the second direction d2, It can be received by carbon fibers extending in the direction, and the impact can be dispersed.
  • the housing 50 includes a third region made of a resin material or the like, but by providing the second region 52 as described above at the longitudinal end portion of the housing 50, The third region having a lower strength than the first region 51 can be protected using the second region 52.
  • the invention according to this embodiment can improve the impact resistance of the casing of the mobile terminal device.

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Abstract

This mobile terminal device is provided with a case (10). The case (10) comprises: a first region (11) that contains carbon fibers that extend in a first direction (d1), which is the longitudinal direction of the case (10); and second regions (12) that are disposed in at least parts of the ends of the case (10) in the longitudinal direction, and contain carbon fibers that extend in a second direction (d2), which intersects the first direction. Furthermore, the case (10) may be formed by laminating a plurality of carbon fiber layers in a direction that is perpendicular to the main surface of the case (10).

Description

携帯端末装置Mobile terminal device
　本発明は携帯端末装置に関し、特に薄型平面筐体を用いた携帯端末装置に関する。 The present invention relates to a mobile terminal device, and more particularly to a mobile terminal device using a thin flat housing.
　近年、携帯電話やスマートフォンなどの携帯端末装置が広く普及している。一般的に、携帯端末装置はユーザが携帯して使用する場合が多いため、例えばユーザが誤って携帯端末装置を落下させた場合、携帯端末装置に強い衝撃が加わる。 In recent years, mobile terminal devices such as mobile phones and smartphones have become widespread. In general, since a user often carries and uses a mobile terminal device, for example, when the user accidentally drops the mobile terminal device, a strong impact is applied to the mobile terminal device.
　特許文献１には、薄型化しても十分な強度を確保することができる電子機器筐体に関する技術が開示されている。特許文献１に開示されている電子機器筐体は、炭素繊維強化プラスチックを主成分とする基材を用いている。この基材は複数層からなり、最外層に含まれる多数本の炭素繊維は一方向に配向された連続した繊維である。この炭素繊維は、基材の対角線方向に平行に配向されている。 Patent Document 1 discloses a technique related to an electronic device casing that can ensure sufficient strength even if it is thinned. The electronic device casing disclosed in Patent Document 1 uses a base material whose main component is carbon fiber reinforced plastic. This substrate is composed of a plurality of layers, and the multiple carbon fibers contained in the outermost layer are continuous fibers oriented in one direction. The carbon fibers are oriented parallel to the diagonal direction of the substrate.
　特許文献２には、炭素繊維を複数積層して形成したキャリッジ機構に関する技術が開示されている。特許文献３には、優れた表面品位を得ることが可能な炭素繊維積層体に関する技術が開示されている。 Patent Document 2 discloses a technique related to a carriage mechanism formed by laminating a plurality of carbon fibers. Patent Document 3 discloses a technique related to a carbon fiber laminate that can obtain excellent surface quality.
特開２００５－１５０６６８号公報JP 2005-150668 A 特開平０６－０６８４８１号公報JP 06-068481 A 特開２００８－１３２７０５号公報JP 2008-132705 A
　上述の文献に記載された技術であっても、携帯端末装置について十分な強度を確保することは難しく、例えばユーザが誤って携帯端末装置を落下させた場合、携帯端末装置には強い衝撃が加わり、携帯端末装置が破損するおそれがある。したがって、携帯端末装置の筐体の耐衝撃性を向上させる技術が重要となってきている。 Even with the techniques described in the above-mentioned documents, it is difficult to ensure sufficient strength for the mobile terminal device. For example, when the user accidentally drops the mobile terminal device, a strong impact is applied to the mobile terminal device. The mobile terminal device may be damaged. Therefore, a technique for improving the impact resistance of the casing of the mobile terminal device has become important.
　上記課題に鑑み本発明の目的は、携帯端末装置の筐体の耐衝撃性を向上させることである。 In view of the above problems, an object of the present invention is to improve the impact resistance of a casing of a mobile terminal device.
　本発明の一態様にかかる携帯端末装置は、筐体を備える携帯端末装置であって、前記筐体は、前記筐体の長手方向である第１の方向に延びる第１の炭素繊維を含む第１の領域と、前記筐体の長手方向端部の少なくとも一部に設けられ、前記第１の方向と交差する第２の方向に延びる第２の炭素繊維を含む第２の領域と、を有する。 A mobile terminal device according to an aspect of the present invention is a mobile terminal device including a housing, and the housing includes a first carbon fiber that extends in a first direction that is a longitudinal direction of the housing. 1 region, and a second region including a second carbon fiber provided in at least a part of a longitudinal end portion of the housing and extending in a second direction intersecting the first direction. .
　本発明により、携帯端末装置の筐体の耐衝撃性を向上させることができる。 According to the present invention, the impact resistance of the casing of the mobile terminal device can be improved.
実施の形態１にかかる携帯端末装置を示す上面図である。1 is a top view showing a mobile terminal device according to a first exemplary embodiment; 図１Ａに示す携帯端末装置のＩＢ－ＩＢにおける断面図である。1B is a cross-sectional view taken along IB-IB of the mobile terminal device shown in FIG. 1A. FIG. 実施の形態１にかかる携帯端末装置の筐体の上面図である。3 is a top view of a casing of the mobile terminal device according to the first exemplary embodiment; FIG. 実施の形態１にかかる携帯端末装置を筐体側から見た斜視図である。It is the perspective view which looked at the portable terminal device concerning Embodiment 1 from the housing | casing side. 実施の形態１にかかる携帯端末装置が備える筐体の一例を示す底面図である。It is a bottom view which shows an example of the housing | casing with which the portable terminal device concerning Embodiment 1 is provided. 実施の形態１にかかる携帯端末装置が備える筐体の一例を示す分解斜視図である。FIG. 3 is an exploded perspective view illustrating an example of a housing included in the mobile terminal device according to the first exemplary embodiment. 実施の形態１にかかる携帯端末装置が備える筐体の他の例を示す分解斜視図である。FIG. 6 is an exploded perspective view illustrating another example of a housing included in the mobile terminal device according to the first exemplary embodiment. 実施の形態１にかかる携帯端末装置が備える筐体の他の例を示す底面図である。FIG. 6 is a bottom view showing another example of a housing included in the mobile terminal device according to the first exemplary embodiment; 実施の形態１にかかる携帯端末装置が備える筐体の他の例を示す底面図である。FIG. 6 is a bottom view showing another example of a housing included in the mobile terminal device according to the first exemplary embodiment; 実施の形態２にかかる携帯端末装置を筐体側から見た斜視図である。It is the perspective view which looked at the portable terminal device concerning Embodiment 2 from the housing | casing side. 実施の形態２にかかる携帯端末装置が備える筐体の一例を示す底面図である。It is a bottom view which shows an example of the housing | casing with which the portable terminal device concerning Embodiment 2 is provided. 実施の形態２にかかる携帯端末装置が備える筐体の一例を示す分解斜視図である。It is a disassembled perspective view which shows an example of the housing | casing with which the portable terminal device concerning Embodiment 2 is provided. 実施の形態２にかかる携帯端末装置が備える筐体の他の例を示す分解斜視図である。It is a disassembled perspective view which shows the other example of the housing | casing with which the portable terminal device concerning Embodiment 2 is provided. 実施の形態２にかかる携帯端末装置が備える筐体の他の例を示す底面図である。It is a bottom view which shows the other example of the housing | casing with which the portable terminal device concerning Embodiment 2 is provided. 実施の形態２にかかる携帯端末装置が備える筐体の他の例を示す底面図である。It is a bottom view which shows the other example of the housing | casing with which the portable terminal device concerning Embodiment 2 is provided. 実施の形態２にかかる携帯端末装置が備える筐体の他の例を示す底面図である。It is a bottom view which shows the other example of the housing | casing with which the portable terminal device concerning Embodiment 2 is provided. 実施の形態２にかかる携帯端末装置が備える筐体の他の例を示す底面図である。It is a bottom view which shows the other example of the housing | casing with which the portable terminal device concerning Embodiment 2 is provided.
＜実施の形態１＞
　以下、図面を参照して本発明の実施の形態について説明する。
　図１Ａ～図１Ｃは、実施の形態１にかかる携帯端末装置を示す図である。図１Ａは、本実施の形態にかかる携帯端末装置の上面図である。図１Ｂは、図１Ａに示す携帯端末装置のＩＢ－ＩＢにおける断面図である。図１Ｃは、本実施の形態にかかる携帯端末装置の筐体の上面図（表示部を除いた図）である。 <Embodiment 1>
Embodiments of the present invention will be described below with reference to the drawings.
1A to 1C are diagrams illustrating a mobile terminal device according to a first exemplary embodiment. FIG. 1A is a top view of the mobile terminal device according to the present exemplary embodiment. 1B is a cross-sectional view taken along the line IB-IB of the mobile terminal device shown in FIG. 1A. FIG. 1C is a top view (a diagram excluding a display unit) of the housing of the mobile terminal device according to the present embodiment.
　本実施の形態にかかる携帯端末装置１では、表示部４と筐体１０とを接合することで形成される空間に、フレーム部材５、バッテリ６、基板７、およびアンテナ９_１、９_２が収容されている。本実施の形態にかかる携帯端末装置１は、例えばスマートフォン、タブレット型の携帯端末装置、携帯電話、ゲーム機、電子書籍端末などである。 In the mobile terminal device 1 according to the present embodiment, the frame member 5, the battery 6, the substrate 7, and the antennas 9_1 and 9_2 are accommodated in a space formed by joining the display unit 4 and the housing 10. Yes. The mobile terminal device 1 according to the present embodiment is, for example, a smartphone, a tablet-type mobile terminal device, a mobile phone, a game machine, an electronic book terminal, or the like.
　図１Ａ、図１Ｂに示すように、表示部４は、パネル２と表示パネル３とを備える。パネル２は、表示パネル３を外部環境から保護するための部材である。パネル２は、タッチパネルであってもよい。表示パネル３は、パネル２に接着剤や両面テープなどを用いて貼り付けられている。表示パネル３は、例えば液晶パネルや有機ＥＬ（Electro Luminescence）パネル等である。 As shown in FIGS. 1A and 1B, the display unit 4 includes a panel 2 and a display panel 3. The panel 2 is a member for protecting the display panel 3 from the external environment. Panel 2 may be a touch panel. The display panel 3 is affixed to the panel 2 using an adhesive or a double-sided tape. The display panel 3 is, for example, a liquid crystal panel or an organic EL (Electro Luminescence) panel.
　また、図１Ｂ、図１Ｃに示すように、バッテリ６および基板７はフレーム部材５にねじ等を用いて固定されている。例えば、バッテリ６および基板７は、筐体１０側からフレーム部材５に固定されている。バッテリ６および基板７が固定されたフレーム部材５は、筐体１０にねじ等を用いて固定されている。 1B and 1C, the battery 6 and the substrate 7 are fixed to the frame member 5 using screws or the like. For example, the battery 6 and the substrate 7 are fixed to the frame member 5 from the housing 10 side. The frame member 5 to which the battery 6 and the substrate 7 are fixed is fixed to the housing 10 using screws or the like.
　バッテリ６は、例えばリチウムイオン二次電池である。また、基板７には、回路素子８が設けられている。回路素子８は、例えば携帯端末装置を駆動するためのプロセッサ、メモリ、通信モジュール等の集積回路装置や、カメラ用の撮像素子等である。 The battery 6 is, for example, a lithium ion secondary battery. A circuit element 8 is provided on the substrate 7. The circuit element 8 is, for example, an integrated circuit device such as a processor, a memory, or a communication module for driving a mobile terminal device, an image sensor for a camera, or the like.
　フレーム部材５は、バッテリ６および基板７を保持するための部材であるので、ある程度の強度を必要とする。よって、フレーム部材５は金属材料を用いて形成することが好ましい。フレーム部材５に用いる材料としては、例えば、マグネシウム合金、アルミニウム、アルミニウム合金、ステンレス等を挙げることができる。なお、携帯端末装置１の軽量化を考慮すると、マグネシウム合金を用いることが好ましい。また、強度を確保できるのであれば、樹脂材料を用いてフレーム部材５を形成してもよい。 Since the frame member 5 is a member for holding the battery 6 and the substrate 7, it needs a certain level of strength. Therefore, the frame member 5 is preferably formed using a metal material. Examples of the material used for the frame member 5 include magnesium alloy, aluminum, aluminum alloy, and stainless steel. In view of weight reduction of the mobile terminal device 1, it is preferable to use a magnesium alloy. If the strength can be secured, the frame member 5 may be formed using a resin material.
　また、アンテナ９_１、９_２は、筐体１０の長手方向端部に設けられている。図１Ｂ、図１Ｃに示す例では、２つのアンテナ９_１、９_２が筐体１０の長手方向の両側端部に設けられている場合を示しているが、アンテナは１つであってもよい。また、アンテナは筐体１０の長手方向端部以外の部分に設けてもよい。 Further, the antennas 9_1 and 9_2 are provided at the longitudinal ends of the housing 10. In the example shown in FIGS. 1B and 1C, the case where the two antennas 9_1 and 9_2 are provided at both end portions in the longitudinal direction of the housing 10 is shown, but one antenna may be provided. Further, the antenna may be provided in a portion other than the end portion in the longitudinal direction of the housing 10.
　図２は、本実施の形態にかかる携帯端末装置を筐体１０側から見た斜視図である。また、図３は、本実施の形態にかかる携帯端末装置が備える筐体１０の一例を示す底面図（つまり、筐体１０側からみた図）である。本実施の形態にかかる携帯端末装置が備える筐体１０は、携帯端末装置の強度を保つために、カーボンコンポジット材料（炭素繊維強化プラスチック（ＣＦＲＰ：Carbon Fiber Reinforced Plastics））を用いて構成されている。カーボンコンポジット材料は、強化材に炭素繊維を、母材にエポキシ樹脂等の樹脂を用いた複合材料であり、高い強度と軽さを併せ持つ。 FIG. 2 is a perspective view of the mobile terminal device according to the present embodiment as viewed from the housing 10 side. FIG. 3 is a bottom view (that is, a view seen from the housing 10 side) showing an example of the housing 10 included in the mobile terminal device according to the present embodiment. The casing 10 included in the mobile terminal device according to the present embodiment is configured using a carbon composite material (carbon fiber reinforced plastic (CFRP)) in order to maintain the strength of the mobile terminal device. . The carbon composite material is a composite material using carbon fiber as a reinforcing material and resin such as epoxy resin as a base material, and has both high strength and lightness.
　図２、図３に示すように、筐体１０は、第１の領域１１と第２の領域１２とを有する。第１の領域１１は、筐体１０の長手方向（第１の方向）ｄ１に延びる炭素繊維（第１の炭素繊維）を含み構成されている。また、第２の領域１２は、筐体１０の長手方向端部の少なくとも一部に設けられ、第１の方向ｄ１と交差する第２の方向ｄ２に延びる炭素繊維（第２の炭素繊維）を含み構成されている。第２の領域１２は、筐体１０の長手方向の両端に設けられている。ここで、第１の方向ｄ１と第２の方向ｄ２は、典型的には直交している。図２、図３に示すように、筐体１０は、主として第１の領域１１で構成されている。 As shown in FIGS. 2 and 3, the housing 10 has a first region 11 and a second region 12. The first region 11 includes a carbon fiber (first carbon fiber) extending in the longitudinal direction (first direction) d1 of the housing 10. In addition, the second region 12 is a carbon fiber (second carbon fiber) provided in at least a part of the longitudinal end portion of the housing 10 and extending in the second direction d2 intersecting the first direction d1. It is composed. The second region 12 is provided at both ends of the casing 10 in the longitudinal direction. Here, the first direction d1 and the second direction d2 are typically orthogonal. As shown in FIGS. 2 and 3, the housing 10 mainly includes a first region 11.
　なお、図２に示す筐体１０の背面は、ユーザの手にフィットするように曲線を有するように形成されているが、筐体１０の背面は平坦に形成してもよい。また、筐体１０の側面１５は、樹脂材料を用いて形成してもよい。カーボンコンポジット材料と樹脂材料とを用いて筐体１０を形成する場合、例えば、カーボンコンポジット材料を筐体１０の金型の所定の箇所に配置して射出成形することで形成することができる。 In addition, although the back surface of the housing | casing 10 shown in FIG. 2 is formed so that it may have a curve so that it may fit a user's hand, the back surface of the housing | casing 10 may be formed flat. Further, the side surface 15 of the housing 10 may be formed using a resin material. When the housing 10 is formed using a carbon composite material and a resin material, for example, the carbon composite material can be formed by placing the carbon composite material at a predetermined location on the mold of the housing 10 and performing injection molding.
　炭素繊維を含むカーボンコンポジット材料は、炭素繊維の向きに沿って強度が強いという性質がある。よって、筐体１０を主として構成する第１の領域１１の炭素繊維の向きを筐体１０の長手方向ｄ１とすることで、筐体１０の長手方向における耐衝撃性を向上させることができる。すなわち、携帯端末装置を落下させた際、筐体１０の長手方向に大きな衝撃が加わるが、第１の領域１１の炭素繊維の向きを筐体１０の長手方向ｄ１とすることで、筐体１０の長手方向の強度を向上させることができ、筐体１０の長手方向における耐衝撃性を向上させることができる。 Carbon composite material containing carbon fiber has a property that strength is strong along the direction of carbon fiber. Therefore, the impact resistance in the longitudinal direction of the housing 10 can be improved by setting the orientation of the carbon fibers in the first region 11 mainly constituting the housing 10 to the longitudinal direction d1 of the housing 10. That is, when the mobile terminal device is dropped, a large impact is applied in the longitudinal direction of the casing 10, but the casing 10 is configured by setting the orientation of the carbon fiber in the first region 11 to the longitudinal direction d1 of the casing 10. The longitudinal strength of the casing 10 can be improved, and the impact resistance in the longitudinal direction of the housing 10 can be improved.
　また、筐体１０の長手方向端部に設けられている第２の領域１２の炭素繊維の向きを、筐体１０の長手方向ｄ１と交差する第２の方向ｄ２とすることで、筐体１０の長手方向端部における耐衝撃性を向上させることができる。すなわち、筐体１０の長手方向端部の炭素繊維の向きを第２の方向ｄ２とすることで、筐体１０の長手方向端部に局所的に鋭い衝撃が加わったとしても、この衝撃を長手方向に延びる炭素繊維で受けることができ、衝撃を分散させることができる。 Further, the orientation of the carbon fibers in the second region 12 provided at the longitudinal end of the housing 10 is set to a second direction d2 that intersects the longitudinal direction d1 of the housing 10, so that the housing 10 It is possible to improve the impact resistance at the end in the longitudinal direction. That is, by setting the direction of the carbon fiber at the longitudinal end of the housing 10 to the second direction d2, even if a sharp impact is locally applied to the longitudinal end of the housing 10, this impact is longitudinally applied. It can be received by carbon fibers extending in the direction, and the impact can be dispersed.
　また、図２、図３に示すように、筐体１０の第１の領域１１は、筐体１０の長手方向端部において第１の方向ｄ１に突出している突出部１３_１、１３_２を備えていてもよい。突出部１３_１、１３_２は、筐体１０の第２の方向ｄ２における端部から第１の方向ｄ１に向かって筐体１０の外側へ突出している。この場合、第２の領域１２は、突出部１３_１と突出部１３_２との間に設けることができる。このように、筐体１０の第１の領域１１に突出部１３_１、１３_２を設けることで、筐体の角部に加わる衝撃に対する耐性を向上させることができる。 As shown in FIGS. 2 and 3, the first region 11 of the housing 10 includes projecting portions 13 </ b> _ <b> 1 and 13 </ b> _ <b> 2 projecting in the first direction d <b> 1 at the longitudinal end portion of the housing 10. Also good. The protrusions 13_1 and 13_2 protrude from the end of the housing 10 in the second direction d2 toward the outside of the housing 10 in the first direction d1. In this case, the second region 12 can be provided between the protruding portion 13_1 and the protruding portion 13_2. As described above, by providing the protrusions 13_1 and 13_2 in the first region 11 of the housing 10, it is possible to improve resistance to an impact applied to the corners of the housing.
　また、図３に示すように、筐体１０は筐体１０の長手方向端部において曲率構造を有していてもよい。このとき、曲率を有する部分の頂点１９は落下時に衝突しやすい部分であるので、第２の領域１２がこの頂点１９を含むようにすることが好ましい。ここで、曲率を有する部分の頂点１９は、換言すると、筐体１０の長手方向において最も突出している箇所である。 Further, as shown in FIG. 3, the housing 10 may have a curvature structure at the longitudinal end portion of the housing 10. At this time, since the vertex 19 of the portion having the curvature is a portion that is likely to collide when dropped, it is preferable that the second region 12 includes the vertex 19. Here, the vertex 19 of the portion having the curvature is, in other words, the most protruding portion in the longitudinal direction of the housing 10.
　図４は、本実施の形態にかかる携帯端末装置が備える筐体１０の一例を示す分解斜視図である。図４に示すように、筐体１０は、筐体１０の主面に複数の炭素繊維層２１～２４を積層することで形成することができる。例えば、図４に示す例では、複数の炭素繊維層２１～２４のうち筐体１０の最も外側（表示部４から最も遠い位置）に配置されている炭素繊維層２１に第１の領域１１と第２の領域１２が形成されている。 FIG. 4 is an exploded perspective view showing an example of the housing 10 included in the mobile terminal device according to the present embodiment. As shown in FIG. 4, the housing 10 can be formed by laminating a plurality of carbon fiber layers 21 to 24 on the main surface of the housing 10. For example, in the example shown in FIG. 4, the first region 11 and the carbon fiber layer 21 disposed on the outermost side (the position farthest from the display unit 4) of the housing 10 among the plurality of carbon fiber layers 21 to 24. A second region 12 is formed.
　このように、筐体１０の最も外側に配置されている炭素繊維層２１に、筐体１０の長手方向ｄ１に延びる炭素繊維を含む第１の領域１１を設けることで、筐体１０の長手方向における耐衝撃性を更に向上させることができる。また、筐体１０の最も外側に配置されている炭素繊維層２１に、筐体１０の長手方向ｄ１と交差する第２の方向ｄ２に延びる炭素繊維を含む第２の領域１２を設けることで、筐体１０の長手方向端部における強度を更に向上させることができる。 Thus, by providing the first region 11 including the carbon fiber extending in the longitudinal direction d1 of the housing 10 in the carbon fiber layer 21 arranged on the outermost side of the housing 10, the longitudinal direction of the housing 10 is provided. The impact resistance in can be further improved. Further, by providing the second region 12 including carbon fibers extending in the second direction d2 intersecting the longitudinal direction d1 of the casing 10 in the carbon fiber layer 21 disposed on the outermost side of the casing 10, The strength at the end in the longitudinal direction of the housing 10 can be further improved.
　すなわち、最も外側に配置されている炭素繊維層２１は、筐体１０の耐衝撃性に最も影響を与える。よって、最も外側に配置されている炭素繊維層２１に第１の領域１１と第２の領域１２を設けることで、筐体１０の耐衝撃性をより向上させることができる。 That is, the carbon fiber layer 21 arranged on the outermost side has the most influence on the impact resistance of the housing 10. Therefore, the impact resistance of the housing 10 can be further improved by providing the first region 11 and the second region 12 in the carbon fiber layer 21 disposed on the outermost side.
　また、複数の炭素繊維層のうち筐体１０の最も外側（ユーザの手に触れる側）に配置されている炭素繊維層２１の第１の領域１１の炭素繊維の方向を筐体１０の長手方向ｄ１とすることで、ユーザの手に触れる第１の領域１１の外側における熱拡散を促進することができる。これにより、ユーザが携帯端末装置を手にした際に、携帯端末装置内部からの発熱による熱さを感じにくくさせることができる。 In addition, the direction of the carbon fibers in the first region 11 of the carbon fiber layer 21 disposed on the outermost side (the side touching the user's hand) of the casing 10 among the plurality of carbon fiber layers is the longitudinal direction of the casing 10. By setting d1, heat diffusion outside the first region 11 that touches the user's hand can be promoted. Thereby, when a user picks up a portable terminal device, it can make it hard to feel the heat by the heat_generation | fever from the inside of a portable terminal device.
　また、図４に示すように、複数の炭素繊維層２１～２４のうち炭素繊維層２１よりも筐体の内側に配置されている炭素繊維層２２、２３（第２の炭素繊維層）を、第２の方向ｄ２に延びる炭素繊維で構成してもよい。また、炭素繊維層２４（第３の炭素繊維層）を第１の方向ｄ１に延びる炭素繊維で構成してもよい。このような構成とすることで、筐体１０の長手方向ｄ１の強度を維持しつつ、筐体１０の長手方向と交差する第２の方向ｄ２の強度を高めることができる。 Further, as shown in FIG. 4, among the plurality of carbon fiber layers 21 to 24, the carbon fiber layers 22 and 23 (second carbon fiber layers) disposed inside the housing with respect to the carbon fiber layer 21 are arranged. You may comprise with the carbon fiber extended in the 2nd direction d2. Further, the carbon fiber layer 24 (third carbon fiber layer) may be composed of carbon fibers extending in the first direction d1. With such a configuration, the strength in the second direction d2 intersecting the longitudinal direction of the housing 10 can be increased while maintaining the strength in the longitudinal direction d1 of the housing 10.
　また、炭素繊維層を積層した場合、炭素繊維の繊維方向における熱伝導率は、炭素繊維の積層方向における熱伝導率の約２０倍から３０倍程度である。よって、図４に示すように、複数の炭素繊維層２１～２４のうち筐体１０の最も内側に配置されている炭素繊維層２４の炭素繊維の方向を筐体１０の長手方向ｄ１とすることで、筐体１０の内部に設けられている回路素子８などから発生する熱を、当該熱が筐体１０の外側に拡散する前に、筐体１０の長手方向に拡散させることができる。これにより、ユーザが携帯端末装置を手にした際に、携帯端末装置内部からの発熱による熱さを感じにくくさせることができる。 Further, when the carbon fiber layers are laminated, the thermal conductivity in the fiber direction of the carbon fibers is about 20 to 30 times the thermal conductivity in the lamination direction of the carbon fibers. Therefore, as shown in FIG. 4, the carbon fiber direction of the carbon fiber layer 24 disposed on the innermost side of the housing 10 among the plurality of carbon fiber layers 21 to 24 is set as the longitudinal direction d1 of the housing 10. Thus, the heat generated from the circuit element 8 or the like provided inside the housing 10 can be diffused in the longitudinal direction of the housing 10 before the heat is diffused to the outside of the housing 10. Thereby, when a user picks up a portable terminal device, it can make it hard to feel the heat by the heat_generation | fever from the inside of a portable terminal device.
　図５は、本実施の形態にかかる携帯端末装置が備える筐体１０の他の例を示す分解斜視図である。例えば、図５に示すように、複数の炭素繊維層２１～２４'のうち筐体１０の最も外側に配置されている炭素繊維層２１と筐体１０の最も内側に配置されている炭素繊維層２４'のそれぞれに、第１の領域１１と第２の領域１２とを形成してもよい。このように、第１の領域１１と第２の領域１２とを有する炭素繊維層を２層とすることで、筐体１０の耐衝撃性をより向上させることができる。つまり、この場合は、第２の領域に対応する箇所の炭素繊維の向きは、全ての炭素繊維層２１～２４'において筐体１０の長手方向と交差する第２の方向ｄ２となるので、筐体１０の長手方向端部における耐衝撃性を更に向上させることができる。 FIG. 5 is an exploded perspective view showing another example of the housing 10 provided in the mobile terminal device according to the present embodiment. For example, as shown in FIG. 5, the carbon fiber layer 21 arranged on the outermost side of the casing 10 and the carbon fiber layer arranged on the innermost side of the casing 10 among the plurality of carbon fiber layers 21 to 24 ′. The first region 11 and the second region 12 may be formed in each of 24 ′. Thus, the impact resistance of the housing | casing 10 can be improved more by making the carbon fiber layer which has the 1st area | region 11 and the 2nd area | region 12 into two layers. That is, in this case, the orientation of the carbon fiber at the location corresponding to the second region is the second direction d2 that intersects the longitudinal direction of the housing 10 in all the carbon fiber layers 21 to 24 ′. The impact resistance at the longitudinal end of the body 10 can be further improved.
　なお、図４、図５に示す例では、筐体１０を構成する炭素繊維層を４層としたが、炭素繊維層の数は任意に決定することができる。また、各々の炭素繊維層の炭素繊維の向きも任意に決定することができる。 In the example shown in FIGS. 4 and 5, the carbon fiber layers constituting the housing 10 are four layers, but the number of carbon fiber layers can be arbitrarily determined. Moreover, the direction of the carbon fiber of each carbon fiber layer can also be determined arbitrarily.
　図６は、本実施の形態にかかる携帯端末装置が備える筐体１０の他の例を示す底面図である。図６に示す筐体１０では、筐体１０の長手方向の端部に設けられている第２の領域３２と各々の突出部１３_１、１３_２とが接する部分（境界部）３３_１、３３_２の長さＬ１を、第２の領域３２の第１の方向ｄ１における長さＬ２（第２の領域３２の中央部における長さ）よりも長くしている。換言すると、第２の領域３２の第１の方向ｄ１における長さは、第２の領域３２が突出部１３_１、１３_２のそれぞれと接する境界部３３_１、３３_２において最も長い。このように、第２の領域３２と各々の突出部１３_１、１３_２とが接する境界部３３_１、３３_２の長さを長くすることで、境界部３３_１、３３_２への応力集中を緩和でき、境界部３３_１、３３_２の強度をより強くすることができる。 FIG. 6 is a bottom view showing another example of the housing 10 included in the mobile terminal device according to the present embodiment. In the housing 10 shown in FIG. 6, the lengths of the portions (boundary portions) 33_1 and 33_2 where the second region 32 provided at the end of the housing 10 in the longitudinal direction and the protrusions 13_1 and 13_2 are in contact with each other. L1 is longer than the length L2 of the second region 32 in the first direction d1 (the length at the center of the second region 32). In other words, the length of the second region 32 in the first direction d1 is the longest at the boundary portions 33_1 and 33_2 where the second region 32 contacts the projecting portions 13_1 and 13_2, respectively. In this way, by increasing the length of the boundary portions 33_1 and 33_2 where the second region 32 and each of the projecting portions 13_1 and 13_2 are in contact with each other, the stress concentration on the boundary portions 33_1 and 33_2 can be reduced, and the boundary portion 33_1. , 33_2 can be further increased.
　このとき、第１の領域１１と第２の領域３２の境界部に面取り部３１_１、３１_２を設けることで、境界部３３_１、３３_２の長さを長くすることができる。なお、この場合も、第１の領域１１の炭素繊維の向きは筐体１０の長手方向ｄ１であり、第２の領域３２の炭素繊維の向きは、筐体１０の長手方向ｄ１と交差する第２の方向ｄ２である。 At this time, by providing the chamfered portions 31_1 and 31_2 at the boundary portion between the first region 11 and the second region 32, the length of the boundary portions 33_1 and 33_2 can be increased. Also in this case, the orientation of the carbon fibers in the first region 11 is the longitudinal direction d1 of the housing 10, and the orientation of the carbon fibers in the second region 32 is the first direction intersecting with the longitudinal direction d1 of the housing 10. 2 direction d2.
　図７は、本実施の形態にかかる携帯端末装置が備える筐体１０の他の例を示す底面図である。図７に示す筐体１０では、第２の領域４２が筐体１０の長手方向の端部全体を囲むように設けられている。この場合も、第１の領域４１の炭素繊維の向きは筐体１０の長手方向ｄ１であり、第２の領域４２の炭素繊維の向きは、第１の方向ｄ１と交差する第２の方向ｄ２である。 FIG. 7 is a bottom view showing another example of the housing 10 included in the mobile terminal device according to the present embodiment. In the housing 10 illustrated in FIG. 7, the second region 42 is provided so as to surround the entire end portion in the longitudinal direction of the housing 10. Also in this case, the orientation of the carbon fibers in the first region 41 is the longitudinal direction d1 of the housing 10, and the orientation of the carbon fibers in the second region 42 is the second direction d2 that intersects the first direction d1. It is.
　なお、以上で説明した本実施の形態にかかる携帯端末装置が備える筐体１０では、筐体１０の長手方向の両端に第２の領域をそれぞれ設けた場合を示したが、第２の領域は、筐体１０の長手方向端部の一方にのみ設けてもよい。 In addition, in the housing | casing 10 with which the portable terminal device concerning this Embodiment demonstrated above was provided, when the 2nd area | region was each provided in the both ends of the longitudinal direction of the housing | casing 10, the 2nd area | region was shown. Alternatively, it may be provided only on one of the longitudinal ends of the housing 10.
　また、上記では、第１の領域１１を構成する炭素繊維の向きは筐体１０の長手方向ｄ１であると説明した。しかし、第１の領域１１を構成する炭素繊維の向きは、主として筐体１０の長手方向ｄ１であればよく、第１の領域１１を構成する炭素繊維として、炭素繊維の向きが第２の方向ｄ２である炭素繊維を含んでいてもよい。同様に、第２の領域１２を構成する炭素繊維の向きは第２の方向ｄ２であると説明した。しかし、第２の領域１２を構成する炭素繊維の向きは、主として第２の方向ｄ２であればよく、第２の領域１２を構成する炭素繊維として、炭素繊維の向きが第１の方向ｄ１である炭素繊維を含んでいてもよい。 Further, in the above description, it has been described that the orientation of the carbon fiber constituting the first region 11 is the longitudinal direction d1 of the housing 10. However, the orientation of the carbon fibers constituting the first region 11 may be mainly the longitudinal direction d1 of the housing 10, and as the carbon fibers constituting the first region 11, the orientation of the carbon fibers is the second direction. The carbon fiber which is d2 may be included. Similarly, it has been described that the orientation of the carbon fibers constituting the second region 12 is the second direction d2. However, the orientation of the carbon fibers constituting the second region 12 may be mainly in the second direction d2, and the carbon fibers constituting the second region 12 are oriented in the first direction d1. A certain carbon fiber may be included.
　以上で説明したように、本実施の形態にかかる携帯端末装置が備える筐体１０は、筐体１０の長手方向（第１の方向）ｄ１に延びる炭素繊維を含む第１の領域１１と、筐体１０の長手方向端部の少なくとも一部に設けられ、第１の方向ｄ１と交差する第２の方向ｄ２に延びる炭素繊維を含む第２の領域１２と、を有する。よって、筐体１０の長手方向における耐衝撃性を向上させることができると共に、筐体１０の長手方向端部における耐衝撃性を向上させることができる。 As described above, the housing 10 included in the mobile terminal device according to the present embodiment includes the first region 11 including the carbon fiber extending in the longitudinal direction (first direction) d1 of the housing 10 and the housing. And a second region 12 including carbon fibers provided in at least a part of the longitudinal end of the body 10 and extending in a second direction d2 intersecting the first direction d1. Therefore, the impact resistance in the longitudinal direction of the casing 10 can be improved, and the impact resistance at the end in the longitudinal direction of the casing 10 can be improved.
　すなわち、携帯端末装置を落下させた際、筐体１０の長手方向に大きな衝撃が加わるが、第１の領域１１の炭素繊維の向きを筐体１０の長手方向ｄ１とすることで、筐体１０の長手方向の強度を向上させることができ、筐体１０の長手方向における耐衝撃性を向上させることができる。また、筐体１０の長手方向端部の炭素繊維の向きを第２の方向ｄ２とすることで、筐体１０の長手方向端部に局所的に鋭い衝撃が加わったとしても、この衝撃を長手方向に延びる炭素繊維で受けることができ、衝撃を分散させることができる。 That is, when the mobile terminal device is dropped, a large impact is applied in the longitudinal direction of the casing 10, but the casing 10 is configured by setting the orientation of the carbon fiber in the first region 11 to the longitudinal direction d1 of the casing 10. The longitudinal strength of the casing 10 can be improved, and the impact resistance in the longitudinal direction of the housing 10 can be improved. Moreover, even if a sharp impact is locally applied to the longitudinal end of the housing 10 by setting the orientation of the carbon fiber at the longitudinal end of the housing 10 to the second direction d2, It can be received by carbon fibers extending in the direction, and the impact can be dispersed.
　本実施の形態にかかる発明により、携帯端末装置の筐体の耐衝撃性を向上させることができる。 The invention according to this embodiment can improve the impact resistance of the casing of the mobile terminal device.
＜実施の形態２＞
　次に、本発明の実施の形態２について説明する。本実施の形態にかかる携帯端末装置の基本的な構成は、図１Ａ～図１Ｃで説明した実施の形態１にかかる携帯端末装置と同様であるので、重複した説明は省略する。図８は、本実施の形態にかかる携帯端末装置を筐体側から見た斜視図である。また、図９は、本実施の形態にかかる携帯端末装置が備える筐体の一例を示す底面図である。本実施の形態にかかる携帯端末装置では、筐体５０が、電波を透過可能な材料で構成された第３の領域５４を更に備えている。 <Embodiment 2>
Next, a second embodiment of the present invention will be described. The basic configuration of the mobile terminal device according to the present embodiment is the same as that of the mobile terminal device according to the first embodiment described with reference to FIGS. FIG. 8 is a perspective view of the mobile terminal device according to the present embodiment as viewed from the housing side. FIG. 9 is a bottom view showing an example of a housing provided in the mobile terminal device according to the present embodiment. In the mobile terminal device according to the present embodiment, the housing 50 further includes a third region 54 made of a material that can transmit radio waves.
　実施の形態１で説明した携帯端末装置では、筐体１０を導電性材料であるカーボンコンポジット材料で構成していたため、アンテナ９_１、９_２で受信する電波が遮蔽される場合があった。本実施の形態にかかる携帯端末装置では、図８、図９に示すように、筐体５０のうちアンテナ９_１、９_２（図１Ｃ参照）が設けられている位置に対応する位置に電波を透過可能な材料で構成された第３の領域５４を設けている。このような構成とすることで、アンテナ９_１、９_２で受信する電波が遮蔽されることを抑制することができ、アンテナの感度の低下を抑制することができる。例えば、第３の領域５４を構成する材料として、樹脂材料などの絶縁性材料を用いることができる。 In the mobile terminal device described in the first embodiment, since the housing 10 is made of a carbon composite material that is a conductive material, radio waves received by the antennas 9_1 and 9_2 may be shielded. In the mobile terminal device according to the present embodiment, as shown in FIGS. 8 and 9, radio waves can be transmitted to a position corresponding to the position where the antennas 9_1 and 9_2 (see FIG. 1C) are provided in the housing 50. A third region 54 made of a different material is provided. With such a configuration, it is possible to suppress shielding of radio waves received by the antennas 9_1 and 9_2, and it is possible to suppress a decrease in antenna sensitivity. For example, as a material constituting the third region 54, an insulating material such as a resin material can be used.
　図８、図９に示すように、筐体５０は、第１の領域５１と第２の領域５２と第３の領域５４とを有する。第１の領域５１は、筐体５０の長手方向（第１の方向）ｄ１に延びる炭素繊維（第１の炭素繊維）を含み構成されている。また、第２の領域５２は、筐体５０の長手方向端部の少なくとも一部に設けられ、第１の方向ｄ１と交差する第２の方向ｄ２に延びる炭素繊維（第２の炭素繊維）を含み構成されている。第２の領域５２および第３の領域５４は、筐体５０の長手方向の両端に設けられている。ここで、第１の方向ｄ１と第２の方向ｄ２は、典型的には直交している。図８、図９に示すように、筐体５０は、主として第１の領域５１で構成されている。 As shown in FIGS. 8 and 9, the housing 50 has a first area 51, a second area 52, and a third area 54. The first region 51 includes a carbon fiber (first carbon fiber) extending in the longitudinal direction (first direction) d1 of the housing 50. In addition, the second region 52 is provided on at least a part of the longitudinal end portion of the housing 50, and carbon fibers (second carbon fibers) extending in the second direction d2 intersecting the first direction d1. It is composed. The second region 52 and the third region 54 are provided at both ends in the longitudinal direction of the housing 50. Here, the first direction d1 and the second direction d2 are typically orthogonal. As shown in FIGS. 8 and 9, the housing 50 is mainly composed of a first region 51.
　更に、第１の領域５１は、筐体５０の長手方向端部において第１の方向ｄ１に突出している突出部５３_１、５３_２を備えている。突出部５３_１、５３_２は、筐体５０の第２の方向ｄ２における端部から第１の方向ｄ１に向かって筐体５０の外側へ突出している。そして、第３の領域５４は、突出部５３_１、５３_２と第２の領域５２とに囲まれるように設けられている。 Furthermore, the first region 51 includes projecting portions 53_1 and 53_2 projecting in the first direction d1 at the longitudinal end portion of the housing 50. The protrusions 53_1 and 53_2 protrude from the end of the housing 50 in the second direction d2 toward the outside of the housing 50 in the first direction d1. The third region 54 is provided so as to be surrounded by the protrusions 53_1 and 53_2 and the second region 52.
　なお、図８に示す筐体５０の背面は、ユーザの手にフィットするように曲線を有するように形成されているが、筐体５０の背面は平坦に形成してもよい。また、筐体５０の側面５５は、樹脂材料を用いて形成してもよい。 In addition, although the back surface of the housing | casing 50 shown in FIG. 8 is formed so that it may have a curve so that a user's hand may be fitted, you may form the back surface of the housing | casing 50 flatly. Further, the side surface 55 of the housing 50 may be formed using a resin material.
　このように、本実施の形態にかかる携帯端末装置の筐体５０は、カーボンコンポジット材料を用いて形成されている部分（第１の領域５１と第２の領域５２）と樹脂材料を用いて形成されている部分５４、５５とを有する。カーボンコンポジット材料と樹脂材料とを有する筐体５０は、例えば、カーボンコンポジット材料を筐体５０の金型の所定の箇所に配置して射出成形することで形成することができる。 As described above, the casing 50 of the mobile terminal device according to the present embodiment is formed using a portion (the first region 51 and the second region 52) formed using the carbon composite material and the resin material. Portions 54 and 55. The housing 50 having the carbon composite material and the resin material can be formed, for example, by placing the carbon composite material at a predetermined location on the mold of the housing 50 and performing injection molding.
　炭素繊維を含むカーボンコンポジット材料は、炭素繊維の向きに沿って強度が強いという性質がある。よって、筐体５０を主として構成する第１の領域５１の炭素繊維の向きを筐体５０の長手方向ｄ１とすることで、筐体５０の長手方向における耐衝撃性を向上させることができる。すなわち、携帯端末装置を落下させた際、筐体５０の長手方向に大きな衝撃が加わるが、第１の領域５１の炭素繊維の向きを筐体５０の長手方向ｄ１とすることで、筐体５０の長手方向の強度を向上させることができ、筐体５０の長手方向における耐衝撃性を向上させることができる。 Carbon composite material containing carbon fiber has a property that strength is strong along the direction of carbon fiber. Therefore, the impact resistance in the longitudinal direction of the housing 50 can be improved by setting the orientation of the carbon fibers in the first region 51 mainly constituting the housing 50 to the longitudinal direction d1 of the housing 50. That is, when the mobile terminal device is dropped, a large impact is applied in the longitudinal direction of the housing 50, but the orientation of the carbon fibers in the first region 51 is set to the longitudinal direction d1 of the housing 50, so that the housing 50 The longitudinal strength of the casing 50 can be improved, and the impact resistance in the longitudinal direction of the housing 50 can be improved.
　また、第３の領域５４は樹脂材料等で構成されているので第１の領域５１と比較して強度が弱い。このため、筐体５０の長手方向端部に第３の領域５４を設けると筐体５０全体での強度が弱くなり、例えば筐体５０の端部に衝撃が加わるとアンテナ９_１、９_２にも衝撃が伝わり、アンテナ９_１、９_２が破損するおそれがある。そこで、本実施の形態にかかる携帯端末装置では、外部から加えられる衝撃から第３の領域５４やアンテナ９_１、９_２を保護するために、筐体５０の長手方向端部に第２の領域５２を設けている。そして、第２の領域５２の炭素繊維の向きを、筐体５０の長手方向ｄ１と交差する第２の方向ｄ２とすることで、第３の領域５４の塑性変形を炭素繊維の復元力で抑制することができ、筐体５０の長手方向端部における耐衝撃性を向上させることができる。 Further, since the third region 54 is made of a resin material or the like, the strength is weaker than that of the first region 51. For this reason, if the third region 54 is provided at the longitudinal end of the housing 50, the strength of the entire housing 50 is weakened. For example, if an impact is applied to the end of the housing 50, the antennas 9_1 and 9_2 are also impacted. May be transmitted and the antennas 9_1 and 9_2 may be damaged. Therefore, in the mobile terminal device according to the present embodiment, in order to protect the third region 54 and the antennas 9_1 and 9_2 from the impact applied from the outside, the second region 52 is provided at the longitudinal end of the housing 50. Provided. And the plastic deformation of the 3rd field 54 is controlled by the restoring force of carbon fiber by making the direction of the carbon fiber of the 2nd field 52 into the 2nd direction d2 which intersects with longitudinal direction d1 of case 50 It is possible to improve the impact resistance at the end of the casing 50 in the longitudinal direction.
　すなわち、筐体５０の長手方向端部の炭素繊維の向きを第２の方向ｄ２とすることで、筐体５０の長手方向端部に局所的に鋭い衝撃が加わったとしても、この衝撃を長手方向に延びる炭素繊維で受けることができ、衝撃を分散させることができる。よって、第２の領域５２を設けることで、第１の領域５１と比較して強度が弱い第３の領域５４を保護することができる。 That is, by setting the orientation of the carbon fiber at the longitudinal end portion of the housing 50 to the second direction d2, even if a sharp impact is locally applied to the longitudinal end portion of the housing 50, the impact is lengthened. It can be received by carbon fibers extending in the direction, and the impact can be dispersed. Therefore, by providing the second region 52, it is possible to protect the third region 54 whose strength is lower than that of the first region 51.
　また、図９に示すように、筐体５０は筐体５０の長手方向端部において曲率構造を有していてもよい。このとき、曲率を有する部分の頂点５９は落下時に衝突しやすい部分であるので、第２の領域５２がこの頂点５９を含むようにすることが好ましい。ここで、曲率を有する部分の頂点５９は、換言すると、筐体１０の長手方向において最も突出している箇所である。 Further, as shown in FIG. 9, the casing 50 may have a curvature structure at the longitudinal end portion of the casing 50. At this time, since the vertex 59 of the portion having the curvature is a portion that easily collides when dropped, it is preferable that the second region 52 includes this vertex 59. Here, the vertex 59 of the portion having the curvature is, in other words, the most protruding portion in the longitudinal direction of the housing 10.
　図１０は、本実施の形態にかかる携帯端末装置が備える筐体５０の一例を示す分解斜視図である。図１０に示すように、筐体５０は、筐体５０の主面に複数の炭素繊維層６１～６４を積層することで形成することができる。例えば、図１０に示す例では、複数の炭素繊維層６１～６４のうち筐体５０の最も外側（表示部４から最も遠い位置）に配置されている炭素繊維層６１に第１の領域５１と第２の領域５２が形成されている。ここで、各炭素繊維層６１～６４に設けられている穴５６は、第３の領域５４に対応する箇所であり、穴５６には樹脂材料などの絶縁性材料が設けられる。 FIG. 10 is an exploded perspective view showing an example of the housing 50 provided in the mobile terminal device according to the present embodiment. As shown in FIG. 10, the housing 50 can be formed by laminating a plurality of carbon fiber layers 61 to 64 on the main surface of the housing 50. For example, in the example shown in FIG. 10, the first region 51 and the carbon fiber layer 61 disposed on the outermost side (the position farthest from the display unit 4) of the housing 50 among the plurality of carbon fiber layers 61 to 64. A second region 52 is formed. Here, the hole 56 provided in each of the carbon fiber layers 61 to 64 is a portion corresponding to the third region 54, and the hole 56 is provided with an insulating material such as a resin material.
　このように、筐体５０の最も外側に配置されている炭素繊維層６１に、筐体５０の長手方向ｄ１に延びる炭素繊維を含む第１の領域５１を設けることで、筐体５０の長手方向における耐衝撃性を更に向上させることができる。また、筐体５０の最も外側に配置されている炭素繊維層６１に、筐体５０の長手方向ｄ１と交差する第２の方向ｄ２に延びる炭素繊維を含む第２の領域５２を設けることで、筐体５０の長手方向端部における強度を更に向上させることができる。 Thus, by providing the first region 51 including the carbon fiber extending in the longitudinal direction d1 of the housing 50 in the carbon fiber layer 61 disposed on the outermost side of the housing 50, the longitudinal direction of the housing 50 is provided. The impact resistance in can be further improved. Further, by providing the carbon fiber layer 61 disposed on the outermost side of the housing 50 with the second region 52 including carbon fibers extending in the second direction d2 intersecting the longitudinal direction d1 of the housing 50, The strength at the end in the longitudinal direction of the housing 50 can be further improved.
　すなわち、最も外側に配置されている炭素繊維層６１は、筐体５０の耐衝撃性に最も影響を与える。よって、最も外側に配置されている炭素繊維層６１に第１の領域５１と第２の領域５２を設けることで、筐体５０の耐衝撃性をより向上させることができる。 That is, the carbon fiber layer 61 disposed on the outermost side has the most influence on the impact resistance of the housing 50. Therefore, the impact resistance of the housing 50 can be further improved by providing the first region 51 and the second region 52 in the carbon fiber layer 61 disposed on the outermost side.
　また、複数の炭素繊維層のうち筐体５０の最も外側（ユーザの手に触れる側）に配置されている炭素繊維層６１の第１の領域５１の炭素繊維の方向を筐体５０の長手方向ｄ１とすることで、ユーザの手に触れる第１の領域５１の外側における熱拡散を促進することができる。これにより、ユーザが携帯端末装置を手にした際に、携帯端末装置内部からの発熱による熱さを感じにくくさせることができる。 In addition, the carbon fiber direction of the first region 51 of the carbon fiber layer 61 disposed on the outermost side (the side touching the user's hand) of the casing 50 among the plurality of carbon fiber layers is the longitudinal direction of the casing 50. By setting it as d1, the thermal diffusion in the outer side of the 1st field 51 which touches a user's hand can be promoted. Thereby, when a user picks up a portable terminal device, it can make it hard to feel the heat by the heat_generation | fever from the inside of a portable terminal device.
　また、図１０に示すように、複数の炭素繊維層６１～６４のうち炭素繊維層６１よりも筐体の内側に配置されている炭素繊維層６２、６３（第２の炭素繊維層）を、第２の方向ｄ２に延びる炭素繊維で構成してもよい。また、炭素繊維層６４（第３の炭素繊維層）を第１の方向ｄ１に延びる炭素繊維で構成してもよい。このような構成とすることで、筐体５０の長手方向ｄ１の強度を維持しつつ、筐体５０の長手方向と交差する第２の方向ｄ２の強度を高めることができる。 Further, as shown in FIG. 10, among the plurality of carbon fiber layers 61 to 64, the carbon fiber layers 62 and 63 (second carbon fiber layers) disposed on the inner side of the housing than the carbon fiber layer 61, You may comprise with the carbon fiber extended in the 2nd direction d2. Moreover, you may comprise the carbon fiber layer 64 (3rd carbon fiber layer) with the carbon fiber extended in the 1st direction d1. With such a configuration, the strength in the second direction d2 intersecting the longitudinal direction of the housing 50 can be increased while maintaining the strength in the longitudinal direction d1 of the housing 50.
　また、炭素繊維層を積層した場合、炭素繊維の繊維方向における熱伝導率は、炭素繊維の積層方向における熱伝導率の約２０倍から３０倍程度である。よって、図１０に示すように、複数の炭素繊維層６１～６４のうち筐体５０の最も内側に配置されている炭素繊維層６４の炭素繊維の方向を筐体５０の長手方向ｄ１とすることで、筐体５０の内部に設けられている回路素子８などから発生する熱を、当該熱が筐体５０の外側に拡散する前に、筐体５０の長手方向に拡散させることができる。これにより、ユーザが携帯端末装置を手にした際に、携帯端末装置内部からの発熱による熱さを感じにくくさせることができる。 Further, when the carbon fiber layers are laminated, the thermal conductivity in the fiber direction of the carbon fibers is about 20 to 30 times the thermal conductivity in the lamination direction of the carbon fibers. Therefore, as shown in FIG. 10, the carbon fiber direction of the carbon fiber layer 64 disposed on the innermost side of the housing 50 among the plurality of carbon fiber layers 61 to 64 is defined as the longitudinal direction d1 of the housing 50. Thus, the heat generated from the circuit element 8 or the like provided inside the housing 50 can be diffused in the longitudinal direction of the housing 50 before the heat is diffused to the outside of the housing 50. Thereby, when a user picks up a portable terminal device, it can make it hard to feel the heat by the heat_generation | fever from the inside of a portable terminal device.
　図１１は、本実施の形態にかかる携帯端末装置が備える筐体５０の他の例を示す分解斜視図である。例えば、図１１に示すように、複数の炭素繊維層６１～６４'のうち筐体５０の最も外側に配置されている炭素繊維層６１と筐体５０の最も内側に配置されている炭素繊維層６４'のそれぞれに、第１の領域５１と第２の領域５２とを形成してもよい。このように、第１の領域５１と第２の領域５２とを有する炭素繊維層を２層とすることで、筐体５０の耐衝撃性をより向上させることができる。つまり、この場合は、第２の領域に対応する箇所の炭素繊維の向きは、全ての炭素繊維層６１～６４'において筐体５０の長手方向と交差する第２の方向ｄ２となるので、筐体５０の長手方向端部における耐衝撃性を更に向上させることができる。 FIG. 11 is an exploded perspective view showing another example of the housing 50 provided in the mobile terminal device according to the present embodiment. For example, as shown in FIG. 11, the carbon fiber layer 61 disposed on the outermost side of the housing 50 and the carbon fiber layer disposed on the innermost side of the housing 50 among the plurality of carbon fiber layers 61 to 64 ′. A first region 51 and a second region 52 may be formed in each of 64 '. Thus, the impact resistance of the housing | casing 50 can be improved more by making the carbon fiber layer which has the 1st area | region 51 and the 2nd area | region 52 into two layers. That is, in this case, the orientation of the carbon fiber at the location corresponding to the second region is the second direction d2 that intersects the longitudinal direction of the housing 50 in all the carbon fiber layers 61 to 64 ′. The impact resistance at the longitudinal end of the body 50 can be further improved.
　なお、図１０、図１１に示す例では、筐体５０を構成する炭素繊維層を４層としたが、炭素繊維層の数は任意に決定することができる。また、各々の炭素繊維層の炭素繊維の向きも任意に決定することができる。 In the example shown in FIGS. 10 and 11, the carbon fiber layers constituting the housing 50 are four layers, but the number of carbon fiber layers can be arbitrarily determined. Moreover, the direction of the carbon fiber of each carbon fiber layer can also be determined arbitrarily.
　図１２は、本実施の形態にかかる携帯端末装置が備える筐体５０の他の例を示す底面図である。図１２に示す筐体５０では、筐体５０の長手方向ｄ１の端部に設けられている第２の領域７２と各々の突出部５３_１、５３_２の内壁とが接する部分（境界部）７３_１、７３_２の長さＬ１１を、第２の領域７２の第１の方向ｄ１における長さＬ１２（第２の領域７２の中央部における長さ）よりも長くしている。換言すると、第２の領域７２の第１の方向ｄ１における長さは、突出部５３_１、５３_２の内壁と第２の領域７２とが各々接する部分において最も長い。このとき、境界部７３_１、７３_２の長さＬ１１は、突出部５３_１、５３_２の幅Ｌ１３よりも長いことが好ましい。このように、第２の領域７２と各々の突出部５３_１、５３_２とが接する境界部７３_１、７３_２の長さを長くすることで、境界部７３_１、７３_２への応力集中を緩和でき、境界部７３_１、７３_２の強度をより強くすることができる。 FIG. 12 is a bottom view showing another example of the housing 50 provided in the mobile terminal device according to the present embodiment. In the housing 50 shown in FIG. 12, the portions (boundary portions) 73_1 and 73_2 where the second region 72 provided at the end of the housing 50 in the longitudinal direction d1 and the inner walls of the projecting portions 53_1 and 53_2 are in contact. The length L11 of the second region 72 is longer than the length L12 of the second region 72 in the first direction d1 (the length at the center of the second region 72). In other words, the length of the second region 72 in the first direction d1 is the longest in the portion where the inner walls of the protrusions 53_1 and 53_2 and the second region 72 are in contact with each other. At this time, the length L11 of the boundary portions 73_1 and 73_2 is preferably longer than the width L13 of the protruding portions 53_1 and 53_2. In this manner, by increasing the length of the boundary portions 73_1 and 73_2 where the second region 72 and each of the projecting portions 53_1 and 53_2 are in contact with each other, the stress concentration on the boundary portions 73_1 and 73_2 can be reduced, and the boundary portion 73_1. , 73_2 can be further increased.
　境界部７３_１、７３_２の長さは、第３の領域５４と第２の領域７２との境界部に面取り部７１_１、７１_２を設けることで、長くすることができる。なお、この場合も、第１の領域５１の炭素繊維の向きは筐体５０の長手方向ｄ１であり、第２の領域７２の炭素繊維の向きは筐体５０の長手方向ｄ１と交差する第２の方向ｄ２である。 The length of the boundary portions 73_1 and 73_2 can be increased by providing the chamfered portions 71_1 and 71_2 at the boundary portion between the third region 54 and the second region 72. Also in this case, the orientation of the carbon fibers in the first region 51 is the longitudinal direction d1 of the housing 50, and the orientation of the carbon fibers in the second region 72 is a second direction that intersects the longitudinal direction d1 of the housing 50. Direction d2.
　図１３は、本実施の形態にかかる携帯端末装置が備える筐体５０の他の例を示す底面図である。図１３に示す筐体５０では、第２の領域８２が筐体５０の長手方向の端部全体を囲むように設けられている。すなわち、第２の領域８２は、境界部８５_１において突出部８３_１と接しており、境界部８６において第３の領域８４と接しており、境界部８５_２において突出部８３_２と接している。このとき、境界部８５_１、８６、８５_２は連続した線状となっている。この場合も、第１の領域８１の炭素繊維の向きは筐体５０の長手方向ｄ１であり、第２の領域８２の炭素繊維の向きは第１の方向ｄ１と交差する第２の方向ｄ２である。 FIG. 13 is a bottom view showing another example of the housing 50 provided in the mobile terminal device according to the present embodiment. In the housing 50 illustrated in FIG. 13, the second region 82 is provided so as to surround the entire end portion in the longitudinal direction of the housing 50. In other words, the second region 82 is in contact with the protruding portion 83_1 at the boundary portion 85_1, is in contact with the third region 84 at the boundary portion 86, and is in contact with the protruding portion 83_2 at the boundary portion 85_2. At this time, the boundary portions 85_1, 86, and 85_2 are continuous linear. Also in this case, the orientation of the carbon fibers in the first region 81 is the longitudinal direction d1 of the housing 50, and the orientation of the carbon fibers in the second region 82 is in the second direction d2 that intersects the first direction d1. is there.
　図１４は、本実施の形態にかかる携帯端末装置が備える筐体５０の他の例を示す底面図である。図１４に示す筐体５０では、第２の領域９２が筐体５０の長手方向の端部全体を囲むように設けられている。すなわち、第２の領域９２は、境界部９５_１において突出部９３_１と接しており、境界部９６において第３の領域９４と接しており、境界部９５_２において突出部９３_２と接している。 FIG. 14 is a bottom view showing another example of the housing 50 provided in the mobile terminal device according to the present embodiment. In the housing 50 illustrated in FIG. 14, the second region 92 is provided so as to surround the entire end portion in the longitudinal direction of the housing 50. In other words, the second region 92 is in contact with the protruding portion 93_1 at the boundary portion 95_1, is in contact with the third region 94 at the boundary portion 96, and is in contact with the protruding portion 93_2 at the boundary portion 95_2.
　このとき、境界部９５_１、９５_２は、境界部９６よりも筐体５０の長手方向内側に設けられている。つまり、第２の領域９２は、第３の領域９４の第２の方向ｄ２における両側（つまり、第３の領域９４の長手方向の両側）の一部と接するように設けられている。また、突出部９３_１、９３_２の第１の方向ｄ１における端部と第２の領域９２とが各々接する境界部９５_１、９５_２の長さＬ２２は、第２の領域９２の第１の方向ｄ１における長さＬ２１よりも長い。 At this time, the boundary portions 95_1 and 95_2 are provided on the inner side in the longitudinal direction of the casing 50 with respect to the boundary portion 96. That is, the second region 92 is provided so as to be in contact with a part of both sides of the third region 94 in the second direction d2 (that is, both sides in the longitudinal direction of the third region 94). Further, the length L22 of the boundary portions 95_1 and 95_2 where the end portions of the protrusions 93_1 and 93_2 in the first direction d1 and the second region 92 contact each other is the length L22 of the second region 92 in the first direction d1. Longer than L21.
　図１２に示した例では、突出部５３_１、５３_２の幅Ｌ１３が短かったために、面取り部７１_１、７１_２を設けて境界部７３_１、７３_２の長さを長くしていた。しかし、図１４に示す例では、突出部９３_１、９３_２の幅Ｌ２２が図１２に示した突出部５３_１、５３_２の幅Ｌ１３よりも長いため、突出部９３_１、９３_２の第１の方向ｄ１における端部に境界部９５_１、９５_２を設けることができる。このように、第２の領域９２と各々の突出部９３_１、９３_２とが接する境界部９５_１、９５_２の長さを長くすることで、境界部９５_１、９５_２への応力集中を緩和でき、境界部９５_１、９５_２の強度をより強くすることができる。なお、この場合も、第１の領域９１の炭素繊維の向きは筐体５０の長手方向ｄ１であり、第２の領域９２の炭素繊維の向きは第１の方向ｄ１と交差する第２の方向ｄ２である。 In the example shown in FIG. 12, since the widths L13 of the projecting portions 53_1 and 53_2 are short, the chamfered portions 71_1 and 71_2 are provided to increase the length of the boundary portions 73_1 and 73_2. However, in the example shown in FIG. 14, since the width L22 of the protrusions 93_1 and 93_2 is longer than the width L13 of the protrusions 53_1 and 53_2 shown in FIG. 12, the end portions of the protrusions 93_1 and 93_2 in the first direction d1. Boundary portions 95_1 and 95_2 can be provided. In this way, by increasing the length of the boundary portions 95_1 and 95_2 where the second region 92 and each of the protruding portions 93_1 and 93_2 are in contact with each other, stress concentration on the boundary portions 95_1 and 95_2 can be reduced, and the boundary portion 95_1. , 95_2 can be further increased. In this case as well, the orientation of the carbon fibers in the first region 91 is the longitudinal direction d1 of the housing 50, and the orientation of the carbon fibers in the second region 92 is the second direction intersecting the first direction d1. d2.
　図１５は、本実施の形態にかかる携帯端末装置が備える筐体５０の他の例を示す底面図である。図１５に示す筐体５０の各符号は、図１４に示した筐体５０の各符号に対応している。そして、図１５に示す筐体５０では、第１の領域９１と第２の領域９２とを有する炭素繊維層を複数備えている。例えば、図１１に示したように、筐体５０の最も外側に配置されている炭素繊維層６１と、筐体５０の最も内側に配置されている炭素繊維層６４'に、第１の領域９１と第２の領域９２を設けてもよい。 FIG. 15 is a bottom view showing another example of the housing 50 provided in the mobile terminal device according to the present embodiment. Each symbol of the casing 50 illustrated in FIG. 15 corresponds to each symbol of the casing 50 illustrated in FIG. The housing 50 shown in FIG. 15 includes a plurality of carbon fiber layers having a first region 91 and a second region 92. For example, as illustrated in FIG. 11, the first region 91 includes a carbon fiber layer 61 disposed on the outermost side of the housing 50 and a carbon fiber layer 64 ′ disposed on the innermost side of the housing 50. And the second region 92 may be provided.
　このとき、図１５に示す筐体５０では、例えば筐体５０の最も外側に配置されている炭素繊維層の境界部９５_１、９５_２と、筐体５０の内側に配置されている炭素繊維層の境界部９８_１、９８_２とが、筐体５０の主面と垂直な方向（換言すると、表示部４の主面と垂直な方向）において重ならないように配置している。このように、複数の炭素繊維層に形成されている第１の領域と第２の領域の境界部が、筐体５０の主面と垂直な方向において重ならないように配置することで、境界部において筐体の強度が弱くなることを抑制することができる。 At this time, in the housing 50 shown in FIG. 15, for example, the boundary portions 95_1 and 95_2 of the carbon fiber layer disposed on the outermost side of the housing 50 and the boundary of the carbon fiber layer disposed on the inner side of the housing 50 The portions 98_1 and 98_2 are arranged so as not to overlap in a direction perpendicular to the main surface of the housing 50 (in other words, a direction perpendicular to the main surface of the display unit 4). In this way, the boundary portion between the first region and the second region formed in the plurality of carbon fiber layers is arranged so as not to overlap in the direction perpendicular to the main surface of the housing 50, thereby the boundary portion. It can suppress that the intensity | strength of a housing | casing becomes weak.
　なお、以上で説明した本実施の形態にかかる携帯端末装置が備える筐体５０では、筐体５０の長手方向の両端に第２の領域５２および第３の領域５４をそれぞれ設けた場合を示したが、第２の領域５２および第３の領域５４は、筐体５０の長手方向端部の一方にのみ設けてもよい。 In the case 50 provided in the mobile terminal device according to the present embodiment described above, the case where the second region 52 and the third region 54 are provided at both ends in the longitudinal direction of the case 50 is shown. However, the second region 52 and the third region 54 may be provided only on one of the longitudinal ends of the housing 50.
　また、上記では、第１の領域を構成する炭素繊維の向きは筐体５０の長手方向ｄ１であると説明した。しかし、第１の領域を構成する炭素繊維の向きは、主として筐体５０の長手方向ｄ１であればよく、第１の領域を構成する炭素繊維として、炭素繊維の向きが第２の方向ｄ２である炭素繊維を含んでいてもよい。同様に、第２の領域を構成する炭素繊維の向きは第２の方向ｄ２であると説明した。しかし、第２の領域を構成する炭素繊維の向きは、主として第２の方向ｄ２であればよく、第２の領域を構成する炭素繊維として、炭素繊維の向きが第１の方向ｄ１である炭素繊維を含んでいてもよい。 In the above description, it has been described that the direction of the carbon fibers constituting the first region is the longitudinal direction d1 of the housing 50. However, the orientation of the carbon fibers constituting the first region may be mainly in the longitudinal direction d1 of the housing 50, and as the carbon fibers constituting the first region, the orientation of the carbon fibers is in the second direction d2. A certain carbon fiber may be included. Similarly, it has been described that the orientation of the carbon fibers constituting the second region is the second direction d2. However, the orientation of the carbon fibers constituting the second region may be mainly in the second direction d2, and as the carbon fibers constituting the second region, carbon whose orientation is the first direction d1. Fibers may be included.
　以上で説明したように、本実施の形態にかかる携帯端末装置が備える筐体５０は、筐体５０の長手方向（第１の方向）ｄ１に延びる炭素繊維を含む第１の領域５１と、筐体５０の長手方向端部の少なくとも一部に設けられ、第１の方向ｄ１と交差する第２の方向ｄ２に延びる炭素繊維を含む第２の領域５２と、を有する。よって、筐体５０の長手方向における耐衝撃性を向上させることができると共に、筐体５０の長手方向端部における耐衝撃性を向上させることができる。 As described above, the housing 50 included in the mobile terminal device according to the present embodiment includes the first region 51 including carbon fibers extending in the longitudinal direction (first direction) d1 of the housing 50, the housing 50, and the housing 50. And a second region 52 including carbon fibers provided in at least a part of the longitudinal end portion of the body 50 and extending in a second direction d2 intersecting the first direction d1. Therefore, the impact resistance in the longitudinal direction of the casing 50 can be improved, and the impact resistance at the end in the longitudinal direction of the casing 50 can be improved.
　すなわち、携帯端末装置を落下させた際、筐体５０の長手方向に大きな衝撃が加わるが、第１の領域５１の炭素繊維の向きを筐体５０の長手方向ｄ１とすることで、筐体５０の長手方向の強度を向上させることができ、筐体５０の長手方向における耐衝撃性を向上させることができる。また、筐体５０の長手方向端部の炭素繊維の向きを第２の方向ｄ２とすることで、筐体５０の長手方向端部に局所的に鋭い衝撃が加わったとしても、この衝撃を長手方向に延びる炭素繊維で受けることができ、衝撃を分散させることができる。 That is, when the mobile terminal device is dropped, a large impact is applied in the longitudinal direction of the housing 50, but the orientation of the carbon fibers in the first region 51 is set to the longitudinal direction d1 of the housing 50, so that the housing 50 The longitudinal strength of the casing 50 can be improved, and the impact resistance in the longitudinal direction of the housing 50 can be improved. Moreover, even if a sharp impact is locally applied to the longitudinal end of the casing 50 by setting the orientation of the carbon fiber at the longitudinal end of the casing 50 to the second direction d2, It can be received by carbon fibers extending in the direction, and the impact can be dispersed.
　また、本実施の形態では、筐体５０が樹脂材料等で構成された第３の領域を備えるが、筐体５０の長手方向端部に上記のような第２の領域５２を設けることで、第１の領域５１と比較して強度が弱い第３の領域を第２の領域５２を用いて保護することができる。 Further, in the present embodiment, the housing 50 includes a third region made of a resin material or the like, but by providing the second region 52 as described above at the longitudinal end portion of the housing 50, The third region having a lower strength than the first region 51 can be protected using the second region 52.
　本実施の形態にかかる発明により、携帯端末装置の筐体の耐衝撃性を向上させることができる。 The invention according to this embodiment can improve the impact resistance of the casing of the mobile terminal device.
　以上、実施の形態を参照して本願発明を説明したが、本願発明は上記によって限定されるものではない。本願発明の構成や詳細には、発明のスコープ内で当業者が理解し得る様々な変更をすることができる。 The present invention has been described above with reference to the embodiment, but the present invention is not limited to the above. Various changes that can be understood by those skilled in the art can be made to the configuration and details of the present invention within the scope of the invention.
　この出願は、２０１２年６月５日に出願された日本出願特願２０１２－１２８０９６を基礎とする優先権を主張し、その開示の全てをここに取り込む。 This application claims priority based on Japanese Patent Application No. 2012-128096 filed on June 5, 2012, the entire disclosure of which is incorporated herein.
１　携帯端末装置
２　パネル
３　表示パネル
４　表示部
５　フレーム部材
６　バッテリ
７　基板
８　回路素子
９_１、９_２　アンテナ
１０　筐体
１１、４１　第１の領域
１２、３２、４２　第２の領域
１３_１、１３_２　突出部
２１、２２、２３、２４、２４'　炭素繊維層
３１_１、３１_２　面取り部
３３_１、３３_２　境界部
５０　筐体
５１、８１、９１　第１の領域
５２、７２、８２、９２　第２の領域
５３_１、５３_２、８３_１、８３_２、９３_１、９３_２　突出部
５４　第３の領域
６１、６２、６３、６４、６４'　炭素繊維層
７１_１、７１_２　面取り部
７３_１、７３_２　境界部
８５_１、８５_２、８６、９５_１、９５_２、９８_１、９８_２　境界部 DESCRIPTION OF SYMBOLS 1 Portable terminal device 2 Panel 3 Display panel 4 Display part 5 Frame member 6 Battery 7 Board | substrate 8 Circuit element 9_1, 9_2 Antenna 10 Case 11, 41 1st area | region 12, 32, 42 2nd area | region 13_1, 13_2 Protrusion part 21, 22, 23, 24, 24 ′ Carbon fiber layers 31_1, 31_2 Chamfered portions 33_1, 33_2 Boundary portion 50 Housings 51, 81, 91 First regions 52, 72, 82, 92 Second regions 53_1, 53_2, 83_1, 83_2, 93_1, 93_2 Protruding portion 54 Third region 61, 62, 63, 64, 64 ′ Carbon fiber layer 71_1, 71_2 Chamfered portion 73_1, 73_2 Boundary portion 85_1, 85_2, 86, 95_1, 95_2, 98_1, 98_2 Boundary

Claims (14)

  1. 　筐体を備える携帯端末装置であって、
    　前記筐体は、
    　前記筐体の長手方向である第１の方向に延びる第１の炭素繊維を含む第１の領域と、
    　前記筐体の長手方向端部の少なくとも一部に設けられ、前記第１の方向と交差する第２の方向に延びる第２の炭素繊維を含む第２の領域と、を有する、
    　携帯端末装置。     A mobile terminal device comprising a housing,
    The housing is
    A first region including a first carbon fiber extending in a first direction which is a longitudinal direction of the housing;
    A second region including a second carbon fiber provided in at least a part of a longitudinal end of the housing and extending in a second direction intersecting the first direction.
    Mobile terminal device.
  2. 　前記筐体の第１の領域は、前記筐体の長手方向端部において前記第１の方向に突出している第１の突出部と第２の突出部とを備え、前記第２の領域は前記第１および第２の突出部の間に設けられている、請求項１に記載の携帯端末装置。 The first region of the housing includes a first projecting portion and a second projecting portion that project in the first direction at a longitudinal end portion of the housing, and the second region includes the first region The mobile terminal device according to claim 1, wherein the mobile terminal device is provided between the first and second protrusions.
  3. 　前記第２の領域の前記第１の方向における長さは、前記第２の領域が前記第１および第２の突出部のそれぞれと接する部分において最も長い、請求項２に記載の携帯端末装置。 The portable terminal device according to claim 2, wherein a length of the second region in the first direction is the longest in a portion where the second region is in contact with each of the first and second protrusions.
  4. 　前記筐体は、絶縁体を主材料として構成された第３の領域を更に備え、
    　前記第３の領域は、前記第１および第２の突出部と前記第２の領域とに囲まれるように設けられている、
    　請求項２または３に記載の携帯端末装置。     The housing further includes a third region composed mainly of an insulator,
    The third region is provided so as to be surrounded by the first and second protrusions and the second region.
    The portable terminal device according to claim 2 or 3.
  5. 　前記第３の領域はアンテナが設けられている位置に対応する位置である、請求項４に記載の携帯端末装置。 The mobile terminal device according to claim 4, wherein the third region is a position corresponding to a position where an antenna is provided.
  6. 　前記第２の領域は、前記筐体の長手方向の端部全体を囲むように設けられている、請求項１、４、または５に記載の携帯端末装置。 The mobile terminal device according to claim 1, 4 or 5, wherein the second region is provided so as to surround an entire end portion in a longitudinal direction of the casing.
  7. 　前記第２の領域の前記第１の方向における長さは、前記第１および第２の突出部の内壁と前記第２の領域とが各々接する部分において最も長い、請求項４または５に記載の携帯端末装置。 6. The length of the second region in the first direction is the longest at a portion where the inner wall of the first and second projecting portions and the second region are in contact with each other. Mobile terminal device.
  8. 　前記筐体の長手方向における前記第１および第２の突出部の端部と前記第２の領域とが各々接する部分の長さは、前記第２の領域の前記第１の方向における長さよりも長い、請求項４または５に記載の携帯端末装置。 The length of the portion where the end portions of the first and second protrusions and the second region contact each other in the longitudinal direction of the housing is longer than the length of the second region in the first direction. The mobile terminal device according to claim 4 or 5, which is long.
  9. 　前記筐体は、前記筐体の主面に積層された複数の炭素繊維層を有し、
    　前記複数の炭素繊維層のうち前記筐体の最も外側に配置されている第１の炭素繊維層に前記第１および第２の領域が形成されている、
    　請求項１乃至８のいずれか一項に記載の携帯端末装置。     The housing has a plurality of carbon fiber layers laminated on the main surface of the housing,
    The first and second regions are formed in a first carbon fiber layer disposed on the outermost side of the housing among the plurality of carbon fiber layers.
    The portable terminal device as described in any one of Claims 1 thru | or 8.
  10. 　前記複数の炭素繊維層のうち前記第１の炭素繊維層よりも前記筐体の内側に配置されている第２の炭素繊維層は前記第２の方向に延びる炭素繊維を有する、請求項９に記載の携帯端末装置。 The second carbon fiber layer disposed inside the housing with respect to the first carbon fiber layer among the plurality of carbon fiber layers has carbon fibers extending in the second direction. The portable terminal device described.
  11. 　前記複数の炭素繊維層のうち前記第１の炭素繊維層よりも前記筐体の内側に配置されている第３の炭素繊維層に前記第１および第２の領域が形成されている、請求項９または１０に記載の携帯端末装置。 The said 1st and 2nd area | region is formed in the 3rd carbon fiber layer arrange | positioned inside the said housing | casing rather than the said 1st carbon fiber layer among these carbon fiber layers. The mobile terminal device according to 9 or 10.
  12. 　前記第３の炭素繊維層は前記筐体の最も内側に配置されている、請求項１１に記載の携帯端末装置。 The mobile terminal device according to claim 11, wherein the third carbon fiber layer is disposed on an innermost side of the casing.
  13. 　前記第１の炭素繊維層における前記第２の領域と前記第１および第２の突出部のそれぞれとが接する部分と、前記第３の炭素繊維層における前記第２の領域と前記第１および第２の突出部のそれぞれとが接する部分は、前記筐体の主面と垂直な方向において重ならないように配置されている、請求項１１または１２に記載の携帯端末装置。 A portion where the second region of the first carbon fiber layer is in contact with each of the first and second protrusions, the second region of the third carbon fiber layer, and the first and second portions. 13. The mobile terminal device according to claim 11, wherein a portion in contact with each of the two protruding portions is arranged so as not to overlap in a direction perpendicular to the main surface of the housing.
  14. 　前記筐体は前記筐体の長手方向端部において曲率構造を有し、
    　前記第２の領域は、前記筐体の長手方向において最も突出している箇所を含むように設けられている、
    　請求項１乃至１３のいずれか一項に記載の携帯端末装置。     The casing has a curvature structure at a longitudinal end of the casing;
    The second region is provided so as to include a portion that protrudes most in the longitudinal direction of the housing.
    The portable terminal device as described in any one of Claims 1 thru | or 13.
PCT/JP2013/000089 2012-06-05 2013-01-11 Mobile terminal device WO2013183193A1 (en)

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