JP2007054384A - Seat pad for vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To improve sitting comfortableness in a seat pad for a vehicle which is provided with an inserter inserted into a recess provided upward from the bottom surface of a pad body. <P>SOLUTION: A cushion pad of the seat pad 10 for vehicles comprises the pad body 20 and the inserter 30 fitted into the recess 24 of the pad body 20. A number of protrusions 31 are provided on the top surface of the inserter 30 and a clearance 32 is made between the protrusions 31. The clearance 32 is made to communicate with a seat surface through a void 27, and then with the bottom surface of the inserter 30 through a communication part C. The communication part C is formed by a vertical groove 33 of the inserter 30. A protruded line 28 provided on the side of the recess 24 is fitted into the vertical groove 33. The depth d of the vertical groove 33 is larger than the height t of the protruded line 28. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a vehicle seat pad, and more particularly to a vehicle seat pad including a pad body provided with a recess recessed upward from the bottom surface, and an insertion body inserted into the recess. .

In JP-A-11-34710 and JP-A-2005-59646, a recess is provided upward from the bottom surface of the pad body, and a nest is inserted into the recess, and a sensor is provided on the top surface of the nest. The seat with the seating sensor in which is installed is described.
JP 11-34710 A JP 2005-59646 A

  The present invention is for a vehicle in which a recess is provided upward from the bottom surface of the pad main body as described in JP-A-11-34710 and JP-A-2005-59646, and an insertion body is inserted into the recess. An object of the present invention is to improve seating comfort in a seat pad and to easily form a pad main body and an insertion body.

  The vehicle seat pad according to claim 1 is a vehicle seat pad comprising: a pad main body provided with a recess recessed upward in the bottom surface portion; and an insertion body inserted into the recess. A vehicle seat pad provided with a ventilation portion that communicates the ceiling surface of the recess with a seating surface of the pad body in the pad body, and a communication portion that communicates the ventilation portion with the bottom surface of the vehicle seat pad. The communication portion is formed between the side surface of the insertion body and the side surface of the recess.

  A vehicle seat pad according to a second aspect of the present invention is the vehicle seat pad according to the first aspect, wherein a vertical groove extending in the vertical direction is provided on one of the side surface of the insertion body and the side surface of the recess. It is characterized by becoming.

  A vehicle seat pad according to a third aspect of the present invention is the vehicle seat pad according to the second aspect, wherein a protrusion extending in the vertical direction is provided on the other of the side surface of the insertion body and the side surface of the recess and extends into the vertical groove. It is characterized by being.

  A vehicle seat pad according to a fourth aspect of the present invention is the vehicle seat pad according to any one of the first to third aspects, wherein a gap is provided between the ceiling surface of the recess and the upper surface of the insertion member, and the ventilation portion and the communication portion are provided. Each of them communicates with the gap.

  According to a fifth aspect of the present invention, the vehicle seat pad according to the fourth aspect is characterized in that a plurality of protrusions are provided on the upper surface of the insertion body, and the gaps are formed between the protrusions.

  A vehicle seat pad according to a sixth aspect is characterized in that, in the fourth aspect, a plurality of protrusions are provided on the ceiling surface of the recess, and the gaps are formed between the protrusions.

  A vehicle seat pad according to a seventh aspect is the vehicle seat pad according to the fourth aspect, wherein a plurality of substantially parallel first grooves are provided on the upper surface of the insertion body, and the first groove is crossed on the ceiling surface of the recess. A plurality of substantially parallel second grooves extending in the direction are provided, and the inside of each groove is the gap.

  The vehicle seat pad according to claim 8 is the vehicle seat pad according to claim 6, wherein the first groove extends in the left-right direction of the vehicle seat pad, and the second groove extends in the front-rear direction of the vehicle seat pad. It is characterized by this.

  The vehicle seat pad according to claim 9 is the vehicle seat pad according to claim 6, wherein the first groove extends in the front-rear direction of the vehicle seat pad, and the second groove extends in the left-right direction of the vehicle seat pad. It is characterized by this.

  A vehicle seat pad according to a tenth aspect is the vehicle seat pad according to any one of the first to ninth aspects, wherein the gap is provided at least below the bottom of the bottom.

  In the vehicle seat pad according to the present invention, the air permeability is good because the upper surface of the pad main body and the lower surface of the insertion body are interposed through the ventilation portion and the communication portion. Therefore, heating or cooling can be performed by circulating hot air or cold air from the lower side of the sheet to the upper surface of the sheet.

  In the present invention, this communication portion is formed between the side surface of the insertion body and the side surface of the recess, and it is not necessary to provide a communication portion comprising a through hole in the insertion body.

  In order to mold an insertion body having a through-hole, it is necessary to project the pin-shaped portion for forming the through-hole from the inner surface of the lower mold or the upper mold of the insertion mold. The mold shape is slightly complicated.

  On the other hand, in the present invention, when the longitudinal groove is provided on the side surface of the insertion body or the recess, the protrusion for forming the longitudinal groove is formed on the inner surface of the molding die for the insertion body or the pad body. What is necessary is that the mold structure is simpler than that described above, and the mold cost is reduced.

  In this case, the engagement area between the insertion body and the pad main body is increased if the ridges provided on the side surface of the recess or the insertion body are inserted into the longitudinal groove provided on the insertion body or the side surface of the recess. An increase in the holding strength of the insert can be expected. Moreover, since the insertion body is fitted in the recess so that the vertical groove and the ridge are engaged, the orientation of the insertion body can be easily confirmed.

  In the present invention, the insertion body is inserted into the recess on the bottom surface of the pad body, and a gap is provided between the ceiling surface of the recess and the upper surface of the loading body, and this gap communicates with the seat surface by the ventilation portion. In addition, the vehicle seat pad may be communicated with the bottom surface via the communication portion. In such a configuration, when sitting, air in the gap smoothly flows out to the outside and the volume is reduced, so that the seating feeling becomes soft and the sitting comfort becomes comfortable.

  In particular, when the gap is provided at least below the bottom of the bottom, the sitting comfort is sufficiently comfortable.

  When the above gap is formed by providing a large number of protrusions on the top surface of the insertion body or the ceiling surface of the recess, the entire space between the top surface of the loading body and the ceiling surface of the recess communicates with each other. Therefore, air is easily supplied to and discharged from the entire gap. Further, even when the vertical spacing is reduced in a part of the gap due to the seating, the other part of the gap exhibits a sufficient ventilation function. Therefore, as described above, when heating or cooling is performed by circulating hot air or cold air from the lower side of the seat to the upper surface of the seat, the air permeability of the gap is good even when seated, and the hot air or cold air is sufficiently distributed. To come.

  Even when a plurality of first grooves are provided substantially in parallel on the upper surface of the insertion body, and a plurality of second grooves are provided substantially in parallel with the first groove in the crossing direction on the ceiling surface of the recess. The same effect as the case of providing the projection is obtained. This groove is suitable because the groove extending in the front-rear direction or the left-right direction of the seat pad has good moldability while forming a ventilation structure. In addition, since the groove can also function as an identification mark of the insertion body, it is possible to prevent mixing of different sizes.

  Hereinafter, embodiments will be described with reference to the drawings.

  1 is a plan view of a vehicle seat pad according to an embodiment, FIGS. 2 and 3 are sectional views taken along lines II-II and III-III of FIG. 1, and FIG. 4 is FIG. FIG. 5 is a sectional view taken along line IV-IV in FIG. 3, and FIG. 5 is an exploded perspective view showing the engagement relationship between the pad main body and the insertion member.

  The cushion pad of the vehicle seat pad 10 includes a pad main body 20 and an insertion body 30 fitted in the recess 24 of the pad main body 20. A vehicle seat pad 10 is configured by attaching an epidermis to the cushion pad.

  The pad main body 20 includes a bottom part 21, a thigh part 22, a side part 23, and a bottom recess 24.

  The recess 24 is recessed upward from the bottom surface of the pad main body 20 below the bottom part 21 and the thigh part 22. In this embodiment, the planar view shape of the recess 24 and the insertion body 30 is a square, but is not limited thereto.

  On the upper surface of the pad main body 20, there are provided a longitudinal groove 25 and a lateral width 26.

  A ridge 28 that extends from the ceiling surface of the recess 24 to the bottom surface of the pad body 20 is provided at the center in the left-right direction on the rear side surface of the recess 24. The protruding height of the ridge 28 (the height from the side surface on the rear side of the recess 24) is shown as t in FIGS. 4 and 5.

  In the case where a soft urethane having a thickness of 5 mm or more or a similar material is used as a cover material on a vehicle seat pad that places importance on cushioning or a seat pad, the pad body 20 is made of a low-density material and is inserted. It is preferable to use a high performance material as a constituent material of the filler 30.

In this case, the constituent material of the seat pad body 20 is preferably a polyurethane foam having a core density of 25 to 50 kg / m ³ and a 25% hardness of 15 to 25 kgf / φ200, and the insert 30 has a core density of 45 to 70 kg / m ³ , A polyurethane foam having a 25% hardness of 16 to 30 kgf / φ200 is desirable.

On the other hand, in the case of a seat pad that requires a soft feeling on the surface or a seat pad that aims to improve the initial seating feeling, the constituent material of the pad body 20 includes a core density of 40 to 70 kg / m ³ , 25% hardness of 8 A polyurethane foam having a core density of 25 to 55 kg / m ³ and a 25% hardness of 16 to 30 kgf / φ200 is preferable.

  In this vehicle seat pad, the length of the recess 24 and the insertion body 30 in the front-rear direction is 150 to 500 mm, particularly 200 to 400 mm, and the depth of the recess 24 is the seat pad 20 in the bottom part 21. The thickness is preferably 30 to 90%, particularly 60 to 80%.

  In this embodiment, the insertion body 30 and the recess 24 have an inversely tapered shape that decreases toward the lower side, whereby the insertion body 30 is firmly held in the recess 24. In addition, the insertion body 30 may be adhere | attached on the inner surface of the recess 24, and may be fastened with a suitable fastener.

  In this embodiment, the ceiling surface of the recess 24 of the pad main body 20 is flat. Holes 27 penetrating from the seating surface to the ceiling surface of the recess 24 are provided on the left and right sides of the bottom of the pad body 20. In this embodiment, a plurality of holes 27 are provided on each of the left and right sides of the bottom of the bottom, but may be provided one by one.

  Since the seat pad is a cushion pad with an epidermis attached, the air holes 27 are indicated by broken lines in FIG. This skin is made of a breathable material such as a woven fabric.

A large number of protrusions 31 are provided on the upper surface of the insertion body 30. Each protrusion 31 has a conical shape, but may have a pyramid shape. Moreover, it does not need to be conical, and may be columnar or convex. In the case of the projection 31 and conical, the size of the base portion is about ² 100～3000Mm, it is preferable that a height of about 5 to 15 mm.

  A gap 32 is formed between the protrusions 31.

  A longitudinal groove 33 extending from the upper surface to the lower surface of the insertion body 30 is provided at the center in the left-right direction of the side surface on the rear side of the insertion body 30. The width of the vertical groove 33 in the left-right direction of the insertion body is equal to the width of the protrusion 28 in the left-right direction of the pad body.

  The depth of the vertical groove 33 (the depth from the rear side surface of the insertion body 30) is shown in FIGS. 4 and 5 as d. This depth d is larger than the height t of the ridge 28. Therefore, when the insertion body 30 is fitted into the recess 24 and the vertical groove 33 and the ridge 28 are engaged at this time, the gap 32 is communicated with the bottom surface of the vehicle seat pad 10 in the vertical groove 33. A communicating portion C is formed.

  The peripheral edge 34 on the upper surface of the insertion body 30 is a flat surface having the same height as the upper end of the protrusion 31. The insertion body 30 is fitted into the recess 24 so that the upper end of the protrusion 31 and the peripheral edge 34 abut against the ceiling surface of the recess 24. In the state where the insertion body 30 is mounted, the gap 32 communicates with both the hole 27 and the communication portion C.

  In the vehicle seat pad 10 configured as described above, when the occupant is seated, the protrusion 31 is deformed so as to be compressed, so that the seating feeling is soft. Since the air gap 32 communicates with the outside via the air holes 27 and the communication portion C, air smoothly enters and exits the air gap 31 during sitting and leaving.

  In this embodiment, the communication part C and the hole 27 communicate with each other through the gap 31. Accordingly, when hot air or cold air is supplied into the communication portion C from an air conditioner (not shown) or the like, the hot air or cold air flows upward from the air holes 27, and the passenger can be heated or cooled.

  In this embodiment, the protrusion 31 is provided on substantially the entire surface other than the peripheral edge portion 34 on the upper surface of the insertion body 30, and the gap 32 communicates with substantially the entire upper surface of the insertion body 30. Therefore, even when a part of the gap is compressed by the load of the seated person, the hot air or the cold air can be smoothly circulated from the communication portion C to the hole 27.

  In this embodiment, the vertical groove 33 is provided on the rear side surface of the insertion body 30, the ridge 28 is provided on the rear side surface of the recess 24, and the vertical groove and the ridge are provided on the other side surface. It is not done. Therefore, when the insertion body 30 is fitted into the recess 24, the front-rear direction of the insertion body 30 can be identified very easily. Further, since the vertical grooves 33 and the ridges 28 are fitted, an increase in the holding strength of the insertion body 30 can be expected.

  Two or more ridges and vertical grooves may be provided, may be provided on other side surfaces, or may be provided on each of a plurality of side surfaces. In any case, it is preferable that the bottom surface shape of the insertion member including the vertical groove is asymmetrical in the front-rear direction. In this way, the front-rear direction of the insert can be easily identified.

  In the embodiment shown in FIGS. 1 to 5, the protrusion 31 is provided on the upper surface of the insertion body 30, but the protrusion 24 may be provided on the ceiling surface of the recess 24 so that the upper surface of the insertion body 30 is a flat surface. Good.

  FIG. 6 is a longitudinal sectional view in the left-right width direction of a vehicle seat pad 10A according to another embodiment, and FIG. 7 is a sectional view taken along the line VII-VII in FIG.

  In this embodiment, a plurality of first grooves 41 extending in the left-right direction are provided on the upper surface of the insertion body 30A. A plurality of second grooves 42 extending in the front-rear direction are provided on the ceiling surface of the recess 24 of the pad main body 20A. The communicating portion C in the vertical groove 33 of the insertion body 30A communicates the first groove 41 and the bottom surface of the insertion body 30A. The air holes 27 communicate the ceiling surface of the recess 24 with the upper surface of the pad main body 20. The inside of the 1st groove | channel 41 and the 2nd groove | channel 42 becomes a space | gap, respectively. The gap communicates with the lower surface and the upper surface of the sheet through the communication portion C and the air holes 27.

  The other structure of this embodiment is the same as that of the embodiment of FIGS. 1 to 3, and the same reference numerals indicate the same parts.

  Also in this embodiment, the same operational effects as the embodiment of FIGS. 1 to 3 can be obtained.

  In the embodiment shown in FIGS. 6 and 7, the first groove 41 is set in the left-right direction and the second groove 42 is set in the front-rear direction. However, the vehicle seat pad 10B shown in FIGS. As described above, the first groove 51 on the upper surface of the insertion body 30B may be the front-rear direction, and the second groove 52 on the ceiling surface of the recess 24 of the pad body 20B may be the left-right direction. Other configurations in FIGS. 8 and 9 are the same as those in FIGS. 4 and 5, and the same reference numerals denote the same parts.

  In this embodiment, the same effects as those of the above-described embodiments can be obtained.

  In addition, about 5-15 mm is suitable for the width | variety of each groove | channel 41,42,51,52, and about 5-15mm is suitable for the depth.

  In the above-described embodiment, the air holes 27 are provided as the ventilation portion, but the lower bottom portion may be formed of a breathable urethane foam.

  In the above embodiment, the gap is formed over substantially the entire seating surface of the seat. However, in the present invention, the gap may be omitted and the communication portion C and the hole 27 may be in direct communication. Further, for example, like the vehicle seat pad 10C according to the embodiment of FIGS. 10 and 11, a ventilation groove 61 for the purpose of communicating the communicating portion C and the hole 27 with the upper surface of the insertion body 30C. 62 may be provided. The ventilation groove 61 extends in the front-rear direction, and the ventilation groove 62 extends from the groove 61 in the left-right direction and communicates with the air holes 27. Although not shown, such a ventilation groove may be provided on the ceiling surface of the recess 24, and the upper surface of the insertion member may be a flat surface.

It is a top view of the vehicular seat pad concerning an embodiment. It is sectional drawing which follows the II-II line of FIG. It is sectional drawing which follows the III-III line | wire of FIG. FIG. 4 is a cross-sectional view taken along line IV-IV in FIGS. 1 to 3. It is a disassembled perspective view of the vehicle seat pad. It is sectional drawing of the vehicle seat pad which concerns on another embodiment. It is sectional drawing which follows the VII-VII line of FIG. It is sectional drawing of the vehicle seat pad which concerns on another embodiment. It is sectional drawing which follows the IX-IX line of FIG. It is a top view of the vehicle seat pad which concerns on different embodiment. It is sectional drawing which follows the XI-XI line of FIG.

Explanation of symbols

10, 10A, 10B, 10C Vehicle seat pad 20, 20A, 20B, 20C Pad body 24 Recess 27 Air hole (vent)
28 ridges 30, 30A, 30B, 30C inserts 31 protrusions 32 gaps 33 vertical grooves 41, 51 first grooves 42, 52 second grooves 61, 62 ventilation grooves C communicating portion

Claims (10)

A pad body provided with a recess recessed upward in the bottom surface,
In a vehicle seat pad comprising an insertion body inserted into the recess,
The pad body is provided with a ventilation portion that communicates the ceiling surface of the recess with the seat surface of the pad body,
A vehicle seat pad comprising a communicating portion that communicates the ventilation portion with the bottom surface of the vehicle seat pad,
The vehicle seat pad, wherein the communication portion is formed between a side surface of the insertion body and a side surface of the recess.   2. The vehicle according to claim 1, wherein a vertical groove extending in a vertical direction is provided on one of the side surface of the insertion body and the side surface of the recess, and the inside of the vertical groove serves as a communication portion. Seat pad.   3. The vehicle seat pad according to claim 2, wherein a protrusion extending into the vertical groove and extending in the vertical direction is provided on the other of the side surface of the insertion body and the side surface of the recess. .   In any 1 item | term of Claim 1 thru | or 3, A space | gap is provided between the ceiling surface of the said recess, and the upper surface of the insertion body, The said ventilation part and a communicating part are communicating with this space | gap, respectively. A vehicle seat pad.   5. The vehicle seat pad according to claim 4, wherein a large number of protrusions are provided on the upper surface of the insertion member, and the gaps are formed between the protrusions.   5. The vehicle seat pad according to claim 4, wherein a plurality of protrusions are provided on the ceiling surface of the recess, and the gaps are formed between the protrusions. In claim 4, a plurality of substantially parallel first grooves are provided on the upper surface of the insertion body,
A plurality of substantially parallel second grooves extending in a direction intersecting with the first groove are provided on the ceiling surface of the recess,
A vehicular seat pad, wherein each groove has the gap.   7. The vehicle seat pad according to claim 6, wherein the first groove extends in the left-right direction of the vehicle seat pad, and the second groove extends in the front-rear direction of the vehicle seat pad.   7. The vehicle seat pad according to claim 6, wherein the first groove extends in the front-rear direction of the vehicle seat pad, and the second groove extends in the left-right direction of the vehicle seat pad.   The vehicle seat pad according to any one of claims 1 to 9, wherein the gap is provided at least below the bottom of the bottom.

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