JP2003339112A - Method and device for retaining linear member, and electronic device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To retain a linear member at a low cost and with ease, and to improve working efficiency at the time of assembling/disassembling. <P>SOLUTION: Retaining the linear member is performed by a wiring retaining part, constituted to include a retaining rib 13 and a retaining hook 23. The retaining hook 23 is provided vertically from a basil fixing part 25 of a screen holder 20 in an L-shape; while the retaining rib 13 is a protruding shape which vertically stands in a plate shape, and is partially formed at an upper part of the holder fixing part 12 of the bezel 10. The retaining rib 13 is inserted in a rib opening 22 provided at the screen holder 20, is assembled with the retaining hook 23 with each other to be in a closed condition, so as to form a retaining area. The wiring of a position sensor is held in the holding area. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a linear member holding device and method for holding a linear member such as an electric wiring, and an electronic apparatus such as a projector that needs to hold the linear member.

[0002]

2. Description of the Related Art Conventionally, a projection type display device (projector) for enlarging and projecting an image on a screen through a projection optical system is known. The projection method in the projector is a front projection method that projects an image on the front side of the screen.
(Front type) and rear projection method that projects images from the rear side
There is (rear type).

A rear type projector is generally provided with a box-shaped casing, and a CRT (Cathode Ray Tu
be) A projection device such as a projection tube and a reflection plate that reflects the projection light from this projection device toward the screen are provided. As the screen, a transmissive type composed of a Fresnel lens and a lenticular lens,
It is provided on the front surface of the housing. This screen is attached to a support frame called a bezel by an attachment member called a screen holder, and is integrated with a housing.

In such a projector, the projection light from the projection device is projected from the inside of the housing to the back surface (back surface) of the screen by the reflector. The projected light passes through the screen and is viewed as an image on the front side.
When a CRT projection tube is used as a projection device to display a color image, projection tubes for R, G, and B colors are used.
Then, a color image is formed by synthesizing the image of each color from each projection tube on the screen.

[0005]

By the way, some rear type projectors have a function of detecting a projection position of an image on a screen and adjusting the projection position. A photodetector is used to detect the projection position. The photodetector is arranged on the back surface side of the screen, for example, in the center of each of the four sides of the top, bottom, left, and right in the vicinity of the outer periphery. In such a state where the photodetector is arranged, for example, a cross-shaped image is projected, and by detecting the image, it is possible to determine whether or not the projection position is appropriate.
Then, the projection position can be adjusted based on the detection result of the photodetector. Such a projection position adjusting function is used, for example, for so-called convergence adjustment, which adjusts the deviation of the projection position of each color when a color image is displayed using a CRT projection tube.

As described above, this photodetector is provided in the vicinity of the outer periphery of the screen, but when mounting the photodetector, a mechanism for holding the electric wiring in the vicinity of the outer periphery is required. 9 and 10 show the peripheral structure of the wiring holding mechanism. As mentioned above, the screen
It is attached to the bezel 101 by an attachment member called a screen holder 102. The screen holder 102 is bent in an L shape in the width direction, a bezel fixing portion 102A is formed in an upper step portion thereof, and a screen fixing portion 102B is formed in a lower step portion thereof. The screen holders 102 are arranged on the four sides of the bezel 101 in the upper, lower, left and right sides, and are fixed to the bezel 101 by the bezel fixing portions 102A, and the screen fixing portions 102B fix the screen by pressing the outer peripheral portion thereof.

Conventionally, wiring is held by the screen holder 10.
In the longitudinal direction of FIG. 2, a large number (for example, 7 to 10) of wire holding clampers 103, which are provided separately from the screen holder 102, are attached. As shown in FIG. 10, the clamper 103 is attached by inserting a part of the clamper 103 into the attachment hole 104 provided in the bezel fixing portion 102A.

However, such a clamper 103
The holding mechanism according to (1) has a problem that the number of different parts used is larger than that in the case where the photodetector is not provided, and the cost of parts is high. In addition, since the number of clampers 103 attached is large, there is a problem that the assembly work is troublesome. Further, in recent years, industrial products are often recycled and used. When disassembling products for recycling, the clamper 10 which is a different material is used.
There is also a problem in that the work of removing No. 3 is required, which is troublesome.

In the above description, the wiring of the photodetector for adjusting the projection position is held as an example, but the wiring of the remote controller may also need to be held in the same manner. . In addition, the above-mentioned problem regarding the wiring retention can occur not only in the projector but also in general electronic devices that require the wiring retention.

The present invention has been made in view of the above problems, and an object thereof is to easily hold a linear member at low cost and to improve work efficiency during assembly and disassembly. An object of the present invention is to provide an apparatus and method for holding a linear member that can be achieved, and an electronic device.

[0011]

A linear member holding device according to the present invention is a mounting member fixed to a supporting member and attached to the supporting member so as to sandwich the first member between the supporting member and the supporting member. And a first member integrally provided on the support member
And a second protrusion that is paired with the first protrusion and that is integrally provided on the mounting member. And
When the first member is attached to the support member, the first member
The protrusion and the second protrusion are combined with each other to form a holding portion for holding the linear second member.

In the method for holding a linear member according to the present invention, the first member is attached to the support member so as to be sandwiched by the support member and the attachment member fixed to the support member.
When the above member is attached, the first protrusion integrally formed on the support member and the second protrusion integrally formed on the attachment member are combined with each other to form the holding portion. The linear second member is held in this holding portion.

An electronic device according to the present invention includes a first member,
An electronic device having a mechanism for supporting or holding a linear second member different from the above, wherein the mechanical portion is fixed to the supporting member and the supporting member, and the first member serves as the supporting member. An attachment member attached to the support member so as to be sandwiched,
A first protrusion that is integrally provided on the support member, and a second protrusion that is paired with the first protrusion and that is integrally provided on the mounting member.
And a protrusion. Then, when the first member is attached to the support member, the first projection portion and the second projection portion are combined with each other to form a holding portion for holding the linear second member. Is forming.

Here, in the apparatus and method for holding a linear member and the electronic apparatus according to the present invention, one of the first protrusion and the second protrusion has, for example, an L-shaped hook shape. And the other has an upright plate shape. The first member is, for example, a screen for a display device such as a projector, and the second member is, for example, wiring from a detection means provided near the outer periphery of the screen.

In the apparatus and method for holding a linear member and the electronic apparatus according to the present invention, the first member is attached to the support member so as to be sandwiched by the support member and the attachment member fixed thereto. . Then, when the first member is attached, the first protrusion integrally formed on the support member and the second protrusion integrally formed on the attachment member are combined with each other. Thus, the holding portion is formed. The linear second member is held by this holding portion.

As described above, the linear second member is formed by the first protrusion and the second protrusion provided on the support member and the attachment member for supporting and attaching the first member. , Retained. That is, the support member and the attachment member have both the function of supporting and attaching the first member and the function of holding the linear second member. Therefore, the linear second member is held without using a separate part such as a clamper.

[0017]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

FIG. 1 shows a schematic structure of a projector as an example of an electronic apparatus according to this embodiment. This projector 1 is of a rear type and has a box-shaped housing 2
Is provided with a screen 3 on which an image is projected. Further, for example, a CR as a projection device is provided inside the housing 2.
The T projection tube 4 is provided. As the CRT projection tube 4,
Projection tubes for each color of R, G and B are arranged respectively. Inside the housing 2, a reflection plate 5 that reflects the projection light from the CRT projection tube 4 toward the back surface of the screen 3 is provided.

The screen 3 is of a transmissive type and is, for example, a Fresnel lens 3A and a lenticular lens 3
It has a configuration in which B (FIG. 5) and the like are combined. The Fresnel lens 3A has a role of converting the divergent light beam projected from the CRT projection tube 4 into a substantially parallel light beam and making it enter the lenticular lens 3B.

The screen 3 has its outer periphery attached to and supported by a support frame called a bezel 10 while the housing 2 is being supported.
Is attached to. As shown in FIG. 2, the screen 3 is attached to the bezel 10 by holding the screen holders 20A to 20D arranged on the four sides of the bezel 10 in the four directions.
(Hereinafter collectively referred to as the screen holder 20).

A plurality of position sensors 6A to 6D (hereinafter collectively referred to as the position sensor 6) are provided on the back surface of the bezel 10.
Is written. ) Are arranged (Fig. 2). The position sensor 6 is for detecting the projection position of the image on the screen 3, and is composed of, for example, a photodetector such as a photodiode. Position sensor 6
Are arranged on the back surface side of the bezel 10, for example, at the central portions of the four sides of the top, bottom, left, and right sides near the outer periphery of the screen.
The position sensor 6 is provided in a so-called overscan area outside the effective screen. The detection result of the position sensor 6 is used to adjust the projection position of the image on the screen 3.

Each wiring 41 of the position sensors 6A to 6D
Are held around the screen 3 by a wire holding unit 50 described later. The ends of the wirings 41 are combined into, for example, one connector 42 and connected to a circuit board (not shown).

Here, mainly with reference to FIGS. 2 to 5, the screen 3 in the bezel 10 and the screen holder 20.
The structure of the attachment part of will be described. FIG. 2 shows the structure of the back surface side of the bezel 10 with the screen 3 attached. 3A and 3B show detailed structures of the bezel 10 and the screen holder 20. Figure 4
The state where the screen holder 20 is attached to the bezel 10 is shown. FIG. 5 shows the cross-sectional structure of the mounting portion of the screen 3, which is taken along the line VV in FIG.

As shown in FIG.
As shown in (B), a holder fixing portion 12 for fixing the screen holder 20 is provided. The holder fixing portion 12 has a shape such that a plate-shaped wall is erected as a whole. The holder fixing portion 12 has a hole 1 at the center.
A boss 11 of 1A is provided. A holding rib 13 is also formed on the holder fixing portion 12 for holding a wiring, which will be described later. The bezel 10 is made of, for example, a plastic material, and is integrally manufactured as a whole including the holding ribs 13.

As shown in FIG. 3 (A), the screen holder 20 has a shape in which the width direction (widthwise direction) is bent into an L shape as a whole, and the bezel fixing portion 25 is provided on the upper portion thereof. Is formed, and the screen fixing portion 24 is formed in the lower part. As shown in FIG. 5, the screen fixing portion 24 is configured to fix the screen 3 with the screen fixing portion 14 of the bezel 10 so as to sandwich the outer peripheral portion thereof.

The bezel fixing portion 25 has a fixing hole 21 at a position corresponding to the boss 11. This fixing hole 21
The boss 11 and the boss 11 are made to correspond to each other and a fixing member 31 such as a screw is used as shown in FIG.
0 is fixed to the bezel 10. The bezel fixing portion 25 also has rib openings 22 and holding hooks 2.
3 are formed for holding the wiring described later. The rib opening 22 has a size that allows the retaining rib 13 of the bezel 10 to be inserted therethrough, and is provided at a position corresponding to the retaining rib 13. The screen holder 20 is made of, for example, a metal material, and the entire screen including the holding hook 23 is integrally molded.

By the way, the screen holder 20 and the bezel 10 have a function as a mounting member for the screen 3 and a linear member (such as the wiring 41 of the position sensor 6).
It also has the function of holding. This linear member holding mechanism is one of the most characteristic parts of the present embodiment. Next, a structure (holding device for the linear member) for holding the linear member will be described.

The holding of the linear member is performed by the wiring holding portion 50 including the holding rib 13 and the holding hook 23. The holding hook 23 is
It is formed so as to stand upright from the bezel fixing portion 25 of the screen holder 20 in an L shape. On the other hand, the retaining rib 13 has a plate-like upright protrusion shape, and as shown in FIG.
It is partially formed on the upper part of the holder fixing portion 12 of the bezel 10. As shown in FIGS. 4 and 5, the retaining ribs 13 are inserted into the rib openings 22 provided in the screen holder 20 and are combined with the retaining hooks 23 to be in a closed state, whereby the retaining ribs 13 are closed. The wiring 41 of the position sensor 6 and the like can be held in the formed holding space 51. The linear member to be held by the wire holding unit 50 may be not only the wire 41 of the position sensor 6 but also a wire for a remote controller (not shown), for example.

The retaining rib 13 is formed so that its wall thickness becomes thinner toward the upper end, for example, as compared with other portions of the holder fixing portion 12, and as shown in FIG. It is elastically deformable in the thickness direction. This is because the holding rib 13 is bent in the thickness direction,
This is because the wiring 41 can be inserted into the wiring holding portion 50, and conversely, the wiring 41 can be removed from the holding space 51 of the wiring holding portion 50.

A plurality of wiring holders 50 are provided on the back surface of the bezel 10, as shown in FIG. The number and location of the wire holding portions 50 are determined according to, for example, the number of wire-shaped members to be held and the place where they are routed. In the example of FIG. 2, the wirings 41 from the four position sensors 6A to 6B are finally put together into one by the connector 42. However, the wiring holding section 50 is provided in a necessary number in a necessary number. It is provided.

In the constituent elements described above, the bezel 10 corresponds to a specific example of "supporting member" in the invention, and the screen holder 20 corresponds to a specific example of "mounting member" in the invention. Also, the holding rib 13
Corresponding to one specific example of the "first protrusion" in the present invention,
The holding hook 23 is the "second protrusion" in the present invention.
It corresponds to a specific example. The screen 3 corresponds to a specific example of “a first member” of the invention, and the wiring 41 is provided.
Corresponds to a specific example of the “second member” in the present invention. Further, the position sensor 6 corresponds to a specific example of "detection means" in the invention.

Next, the operation and operation of the projector 1 configured as described above will be described.

In the projector 1, as shown in FIG. 1, the projection light L1 from the CRT projection tube 4 is projected on the back surface (back surface) of the screen 3 by the reflector 5 inside the housing 2. The projection light L1 passes through the screen 3 and is observed as an image on the front side. CRT
The projection tube 4 is composed of projection tubes for each color of R, G, B, and a projection image of each color from each projection tube is displayed on the screen 3
The above is combined to form a color image.

In this projector 1, if necessary,
The projection position of the image is adjusted. In this case, for example, a cross-shaped image is projected as the adjustment image. The position sensor 6 detects the adjusting projection light L2 in an area outside the normal image display area on the screen 3, that is, an overscan area. Based on the detection result of the position sensor 6, it is determined whether or not the projection position is appropriate, and the projection position is adjusted. The projection position is adjusted electrically by the function of a signal processing circuit (not shown). Thereby, for example, it is possible to perform convergence adjustment or the like caused by the deviation of the projection position of each color of R, G, B from the CRT projection tube 4.

Next, a method of holding the linear member by the wire holding portion 50 will be described together with a method of attaching the screen 3 to the bezel 10.

As shown in FIG. 2, the screen 3 has screen holders 20A to 20D on each side of its outer peripheral portion.
Is fixed to the bezel 10. This fixing is performed by the screen fixing portion 24 of each screen holder 20 and the screen fixing portion 14 of the bezel 10.
The outer peripheral part is clamped (Fig. 5). To fix the screen holder 20 to the bezel 10, the fixing hole 21 of the bezel fixing portion 25 and the boss 11 of the holder fixing portion 12 are made to correspond to each other, and a fixing member 31 such as a screw is inserted into the fixing hole 21 (FIG. 4).
It is carried out by inserting and fastening.

When the screen holder 20 is fixed to the bezel 10 as described above, the holder fixing portion 1 of the bezel 10 is inserted into the rib opening 22 provided in the screen holder 20.
The holding rib 13 formed in 2 is inserted. When the holding rib 13 is inserted, as shown in FIGS. 4 and 5, the holding hook 23 and the holding rib 13 are combined with each other to be in a closed state, whereby the holding space 51 is formed. It is formed.

With the holding space 51 formed, as shown in FIG. 6, the holding rib 13 is bent in the thickness direction so that the wiring 41 from the position sensor 6 is held in the holding space 5.
After the insertion of the ribs 1 into the inside 1, the deflection of the holding ribs 13 is returned to the original state. As a result, the wiring 41 is held by the wiring holding unit 50 without being detached in the normal state (FIG. 5),
The same function as that of the conventionally used wiring holding clamper 103 (FIG. 9) is achieved. The wiring 41 is removed by bending the holding rib 13 in the thickness direction, as in the insertion.

As described above, according to the present embodiment, the function for holding the wiring is provided by the existing component (the bezel 10).
Since it is realized by partially improving the shape of the screen holder 20), it is not necessary to use the clamper 103 (FIG. 10) which is a separate part as in the conventional case. For this reason, the number of parts is reduced, so that the cost of parts can be reduced. Also, since the work of attaching a separate part to hold the wiring is not required, the assembly work can be simplified and the product assembly time can be reduced as compared with the conventional case. Further, since separate parts are not used, the disassembling work of dissimilar materials is not required even when disassembling the product for recycling, which facilitates the recycling work.

As described above, according to the present embodiment, the function of holding the wiring can be realized without using separate parts, so that the linear member can be held easily at low cost. . In addition, it is possible to improve the efficiency of work during assembly and disassembly.

The present invention is not limited to the above embodiment, and various modifications can be made. For example, the linear member holding device and method of the present invention can be applied not only to the projector but also to other display devices. Further, it can be widely applied to general electronic equipment other than the display device that needs to hold the wire.

Further, the structure of the wiring holding portion 50 can be the structure of the modification shown in FIGS. 7 and 8.
In the above-mentioned embodiment, the L-shaped holding hook 23 is provided on the screen holder 20 side. However, in the wiring holding portion 60 according to this modification, the rib portion on the bezel 10 side is L-shaped. To form a holding hook 61, and a simple plate-shaped upstanding holding projection 62 is formed on the screen holder 20 side. That is, in this modified example, the holding rib 13 and the holding hook 23 in the above-described embodiment are provided.
The upper part of and is shaped like just inverted.

Also in this modification, the holding hook 61 is provided.
The holding protrusion 62 and the holding projection 62 are combined with each other to be in a closed state, and the wiring 41 of the position sensor 6 and the like are held in the holding space 51 formed thereby. Similarly for holding and removing the wiring 41,
As shown in FIG. 8, the holding hook 61 on the side of the bezel 10 is held.
It is performed by bending and deforming.

[0044]

As described above, according to the first to fourth aspects.
6. The linear member holding device according to claim 1,
Alternatively, the method for holding the linear member according to claim 6, or claim 7.
Alternatively, according to the electronic device of the eighth aspect, when the first member is attached to the support member, the first protrusion and the second protrusion are integrally provided on the support member and the attachment member. Since the holding portion for holding the linear second member is formed by combining and
It is possible to provide the same member (supporting member and mounting member) with the function of supporting and mounting the above member and the function of holding the linear second member.

Therefore, in order to hold the linear second member, it is not necessary to use a separate part such as a clamper as in the conventional case, and the number of parts and the parts cost can be reduced. Further, since the work of attaching a separate part to hold the linear second member is not necessary, the assembling work can be simplified and the product assembling time can be reduced as compared with the related art. Further, since separate parts are not used, the disassembling work of dissimilar materials is not required even when disassembling the product for recycling, which facilitates the recycling work.
As described above, according to the present invention, the function of holding the wiring can be realized without using a separate part, so that the linear second
The member can be easily held at low cost. In addition, it is possible to improve the efficiency of work during assembly and disassembly.

[Brief description of drawings]

FIG. 1 is a configuration diagram showing an outline of a projector according to an embodiment of the present invention.

FIG. 2 is a configuration diagram showing a structure on the back surface side of the bezel.

FIG. 3 is a partial exploded perspective view showing a detailed configuration of a screen holder and a bezel.

FIG. 4 is a perspective view showing a state where a screen holder is attached to a bezel.

FIG. 5 is a cross-sectional view showing a structure around a wiring holding portion while holding wiring.

FIG. 6 is a cross-sectional view showing a structure around a wiring holding portion in a state where wiring is not held.

FIG. 7 is a perspective view showing a modification of the wiring holding unit.

FIG. 8 is a cross-sectional view showing a modified example of the wiring holding unit.

FIG. 9 is a perspective view for explaining a conventional linear member holding mechanism.

FIG. 10 is a cross-sectional view for explaining a conventional linear member holding mechanism.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Projector, 2 ... Housing, 3 ... Screen, 4 ... Projection tube, 5 ... Reflector, 6 (6A to 6D) ... Position sensor, 10 ... Bezel, 11 ... Boss, 12 ... Holder fixing part,
13 ... Retaining ribs, 14 ... Screen fixing portion, 20 (2
0A to 20D) ... Screen holder, 22 ... Rib opening, 23 ... Holding hook, 24 ... Screen fixing portion, 2
5 ... Bezel fixing part, 41 ... Wiring, 42 ... Connector, 50
... Wiring holding portion, 51 ... Holding space.

   ─────────────────────────────────────────────────── ─── Continued front page    F-term (reference) 4E352 AA02 AA03 BB02 CC02 CC08                       CC56 DR19 DR38 DR39 GG12                       GG25 GG27                 4E360 AA02 AB05 EA22 EB02 EE03                       GA52 GA53 GB02                 5G357 DA06 DB01 DC11 DD02 DD06                       DD14 DE03                 5G363 AA16 BA01 DA15 DC08

Claims (8)

[Claims] 1. A support member, an attachment member fixed to the support member, and attached to the support member so as to sandwich the first member between the support member and the support member; A first protrusion and a second protrusion that is paired with the first protrusion and integrally provided on the attachment member are provided, and the first member is attached to the support member. In a state, the first protrusion and the second protrusion are combined with each other to form a holding portion for holding the linear second member. Device for holding a strip-shaped member. 2. One of the first protrusion and the second protrusion is configured to be deformable, and one of the first protrusion and the second protrusion is deformable. The holding device for the linear member according to claim 1, wherein the second member is attached and detached by the above. 3. One of the first protrusion and the second protrusion has an L-shaped hook shape, and the other has an upright plate shape. The holding device for the linear member according to claim 1. 4. The first member is a screen for a display device, and the second member is a wiring from a detection means provided near the outer periphery of the screen. 1. The linear member holding device according to 1. 5. A first member is attached to the support member so as to be sandwiched by a support member and an attachment member fixed to the support member, and the support is provided when the first member is attached. A first protrusion provided integrally with the member and a second protrusion integrally provided with the mounting member are combined with each other to form a holding portion, and the holding portion has a linear first portion. A method for holding a linear member, characterized in that the member 2 is held. 6. The wire according to claim 5, wherein the second member is attached and detached by deforming one of the first protrusion and the second protrusion. Method for holding a strip-shaped member. 7. An electronic device having a mechanism for supporting or holding a first member and a linear second member different from the first member, wherein the mechanical portion is a supporting member, and the supporting member. An attachment member fixed to the support member so as to sandwich the first member between the support member and the support member; a first protrusion portion integrally provided on the support member; and a first protrusion. A second protrusion that is paired with the attachment member and is integrally provided on the attachment member, and when the first member is attached to the support member, the first protrusion and An electronic device, wherein the second projection portion is combined with each other to form a holding portion for holding the linear second member. 8. An electronic device configured as a projector for projecting an image on a screen, wherein the supporting member supports the screen as the first member, and the holding portion is the first member. 8. The electronic device according to claim 7, wherein the second member is a member for holding a wiring from the detection means provided near the outer periphery of the screen.