JP2005199936A - Cushion pad - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To easily install a small pad in a storage space, and to make it hard to be fallen away after installation, in a cushion pad wherein the small pad is installed in the storage space of a pad body and a seating sensor and the like are arranged in the pad. <P>SOLUTION: A seat pad 10 is composed of the pad body 14 formed by soft foam, and the small pad 16 installed in the recessed storage space 18 provided on a bottom surface thereof and formed by soft material. In the cushion pad 10, a seating sensor 12 is disposed between an upper surface 34 of the small pad 16 and a ceiling surface 32 of the storage space 18. At relative positions between the ceiling surface 32 of the storage space 18 and the upper surface 34 of the small pad 14, male side surface fasteners 61, 62 are provided on the ceiling surface 32, and female side fasteners 63, 64 are provided on the upper surface 34 of the small pad 16. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a cushion pad used as a cushion material for a vehicle seat such as an automobile.

  Some automobile seats incorporate a seat-like seating sensor that detects the seating of an occupant, for example, in order to prevent malfunction of an air bag in a passenger seat. Some have a built-in sheet heater for keeping the seating surface warm. When a functional sheet such as a seating sensor or a heater is disposed between the concave housing portion formed on the upper surface of the automobile seat and the skin, the functional sheet feels a foreign object when seated, or the functional sheet May appear on the outside and impair the appearance, and the functional sheet may be damaged by the seating pressure.

  In order to solve such problems, a hole is provided upward from the bottom surface of the soft pad body, and a small pad of soft material is inserted into this hole, and a sensor is installed on the upper surface portion of the soft material. And the technique of hold | maintaining a soft material in a hole by narrowing the lower end of the said hole is disclosed (patent document 1).

Also, a storage space is provided below the seating surface of the pad body, a foam block is stored in the storage space, and a sensor or heater is provided between the seating surface of the storage space and the top surface of the block. A technique for disposing the above is disclosed (Patent Document 2).
JP 11-34710 A JP 2000-189282 A

  However, in the technique disclosed in Patent Document 1, since the lower end of the hole is narrowed to hold the small pad in the hole of the pad body, there is a problem that it is difficult to attach the small pad to the pad body. When the seating sensor is attached to the upper surface of the small pad in advance, the seating sensor may come off from the small pad due to compression deformation at the time of insertion, or the position may be displaced. Moreover, in such a structure, since a hole formation part is an undercut shape, there exists a problem that a pad main body is hard to shape | mold.

  On the other hand, the technique disclosed in Patent Document 2 has a problem that the block body is simply inserted into the storage space of the pad main body, and the block body easily falls off the pad main body.

  The present invention has been made in view of the above-described problems, and a functional pad such as a seating sensor is disposed in the pad by mounting the small pad in the accommodation space of the pad body, and the small pad is accommodated. The purpose is to provide a cushion pad that is easy to install in a space and that does not easily fall off after installation.

  The cushion pad of the present invention comprises a pad main body made of a soft foam and a small pad made of a soft material mounted in a concave housing space provided on the bottom surface of the pad main body. The upper surface of the small pad and the housing In the cushion pad in which the sheet-like body is disposed between the ceiling surface of the space, the ceiling surface of the storage space and the upper surface of the small pad are disposed at a relative position between the ceiling surface of the storage space and the upper surface of the small pad. A connecting member that can be freely attached and detached is provided.

  In this case, a hook-and-loop fastener can be used as the connecting member.

  According to the cushion pad of the present invention, the small pad is inserted into the accommodating space, and the small pad is displaced by making the connection between the ceiling surface of the accommodating space and the upper surface of the small pad easy by the detachable connecting member. It is possible to prevent the sheet-like body from being displaced and dropped. If a hook-and-loop fastener is used as the connecting member, the attaching / detaching operation becomes easier and temporary fixing is possible, thereby improving the mounting workability.

  In the cushion pad of the present invention, a gap can be formed between the side wall of the housing space and the side surface of the small pad, and the small pad can be easily inserted into the housing space to improve the mounting workability. By allowing the pad to be deformed in the gap, the pad is softened and the cushioning property is improved.

  In the cushion pad, a concave groove or a ridge extending upward from a lower end portion of the side wall is provided on a side wall of the housing space, and at least a part of a wall surface of the concave space or the ridge of the housing space is provided on a side surface of the small pad. Convex ridges or grooves may be provided that fit together while being compressed and hold the small pad in the housing space.

  As a result, by holding the small pad while the side wall of the housing space and the concave groove and the ridge on the side surface of the small pad are mutually compressed, the compressed portion of the concave groove and the ridge in addition to the holding force by the connecting member Due to the repulsive force, the holding effect of the small pad can be further enhanced.

  In this case, the small pad is held in the accommodating space while being compressed with each other at the groove bottom or the top of the groove of the concave groove of the housing space and the top of the convex or the groove of the small pad. It is possible to hold the small pad with minimal deformation due to compression of the housing space and the concave grooves and ridges of the small pad, making it easy to attach the small pad, and the pad shape around the compression part Keeping it will not affect the function of the cushioning or functional sheet.

  Further, the housing space has a substantially rectangular horizontal cross section, and the concave grooves or the ridges are provided on at least a pair of opposing side walls, thereby improving the positioning and holding performance of the small pad.

  The cushion pad of the present invention is characterized in that the sheet-like body is a functional seat such as a seating sensor or a heater, and can be suitably used as a seat with various functions for a vehicle seat such as an automobile.

  According to the cushion pad of the present invention, a small pad is prevented from being displaced in the housing space of the pad main body, and is easily attached, and it is difficult to fall off after the attachment, and a functional seat such as a seating sensor is attached to the predetermined space in the cushion pad. It can be easily and reliably disposed at the position.

  Embodiments of the present invention will be described below with reference to the drawings.

(First embodiment)
1 is an exploded perspective view of a vehicle seat pad 10 according to the first embodiment, FIG. 2 is a cross-sectional view of the seat pad 10 in the left-right direction, FIG. 3 is a bottom view of the pad main body 14, and FIG. 4 is a top view of a small pad 16. FIG.

  The seat pad 10 is a cushion pad used for a seat surface portion of an automobile, and is a seat pad with a seating sensor incorporating a pressure-sensitive seat-like seating sensor 12 for detecting the seating of an occupant. The seat pad 10 includes a pad main body 14 and a small pad 16 formed separately from the pad main body 14 for disposing the seating sensor 12 therein.

  The pad main body 14 is a foam molded body made of a flexible polyurethane foam formed by injecting a polyurethane foam raw material into a mold, and a concave accommodation space 18 is formed on the bottom surface thereof. The accommodating space 18 is a seating portion 20 at the center in the width direction of the pad main body 14, and is provided below the bottom bottom portion 22 at the rear from the center in the front-rear direction, and upward from the bottom surface of the pad main body 14. It is recessed. The storage space 18 has a substantially rectangular horizontal section defined by the front and rear and left and right side walls 24, 26, 28, and 30, and the front and rear side walls 24 and 26 are loose so that they become wider toward the bottom. The left and right side walls 28 and 30 are erected substantially perpendicular to the ceiling surface 32 to facilitate insertion of the small pad 16.

  The small pad 16 is made of a foamed product of soft urethane foam similar to the pad main body 14 and is detachably mounted in the housing space 18 without a gap. The urethane foam forming the small pad 16 may have the same composition as the pad main body 14 or may have a composition different in hardness, density, and the like. Moreover, not only such a foaming body of a flexible urethane foam but various soft materials, such as a chip urethane, can also be used.

  A pressure-sensitive seat-type seating sensor 12 for detecting an occupant seated on the seat pad 10 is bonded and fixed to the upper surface 34 of the small pad 16. By mounting the small pad 16 provided with the seating sensor 12 in the housing space 18, the seating sensor 12 is disposed between the small pad 16 and the ceiling surface 32 of the housing space 18, and the wiring 36 thereof. Is pulled out rearward of the accommodation space 18 along the upper surface of the small pad 16 and has a terminal 38 at its tip. The seating sensor 12 may be bonded and fixed in advance to the ceiling surface 32 of the accommodation space.

  The ceiling surface 32 of the storage space 18 of the pad main body 14 and the upper surface 34 of the small pad 16 are provided with connecting members that allow the ceiling surface 32 of the storage space 18 and the upper surface 34 of the small pad 16 to be detachable at opposite positions. Thus, the small pad 16 can be inserted into the accommodating space 18, and the small pad 16 can be mounted at an accurate position without being displaced by the connecting member.

  As the connecting member, a hook-and-loop fastener is used. For example, a conventionally known magic tape (trade name) can be used. This hook-and-loop fastener makes it easy to mount the small pad 16 in the housing space 18 and can be temporarily fixed or reattached, so that the positional displacement of the small pad 16 can be easily corrected. Is less likely to occur.

  As shown in the figure, on the ceiling surface 32 of the accommodating space 18 of the pad main body 14, male side fasteners 61 and 62 are provided in a band shape between the left and right side portions of the seating sensor 12 and the left and right side walls 28 and 30. . On the other hand, on the upper surface 34 of the small pad 16, female side fasteners 63 and 64 are provided in a strip shape at positions facing the male side fasteners 61 and 62.

  The hook-and-loop fasteners 61, 62, 63, and 64 may be arranged at predetermined positions on the inner surfaces of the respective molds during foam molding of the pad main body 14 and the small pad 16, and may be integrated and fixed to the surface of the molded body by urethane foam. it can. Further, it may be bonded and fixed to the surface of the molded body of the pad main body 14 or the small pad 16 with an adhesive.

  The surface fasteners 61, 62, 63, 64 are arranged on the ceiling surface 32 of the accommodating space 18 with the male sides 61, 62 between the left and right side portions of the seating sensor 12 and the side walls thereof, and the small pads 16 opposed thereto. By providing the female side 63, 64 on the upper surface 34 and making a pair, that is, by providing at least a pair opposed to each other with the seating sensor 12 interposed therebetween, the connected state of the male and female hook-and-loop fasteners can be stabilized and strengthened. Misalignment and dropout can be prevented. If only one of the left and right sides of the seating sensor 12 is connected, the connecting force is insufficient and the mounting ability of the small pad 16 becomes unstable. Misalignment and dropout are likely to occur.

  Further, if the hook-and-loop fastener is provided in a portion overlapping the seating sensor 12, the function of the seating sensor 12 may be hindered, and it is desirable to avoid an overlapping portion with the seating sensor 12.

  As a result, when the small pad 16 is mounted in the receiving space 18 of the pad main body 14, the male side fasteners 61, 62 and the female side fasteners 63, 64 are connected, and the small pad 16 is securely mounted while preventing positional displacement. Therefore, the seating sensor 12 is arranged at a predetermined seating position.

  Note that gaps 25, 27, 29, and 31 described in the second embodiment to be described later are provided between the side walls 24, 26, 28, and 30 of the storage space 18 and the side surfaces 40, 42, 44, and 46 of the small pad 16. Thus, it is possible to facilitate the insertion of the small pad 16 into the accommodating space 18 and to improve the mounting property.

  FIG. 11 shows a modified example of the arrangement of the hook-and-loop fastener, in which male side fasteners 65 and 66 are provided at positions where the seating sensor 12 in the accommodating space 18 and the front and rear side walls 24 and 26 face each other. A female side zipper is provided on the 16 side to be opposed to this, and is particularly effective in preventing lateral displacement. Of course, two pairs may be provided in both the front, rear, left and right directions of the seating sensor 12.

(Second Embodiment)
The automobile seat pad 100 according to the second embodiment is provided on the seat pad 10 provided with the surface fasteners 61, 62, 63, 64 described in the first embodiment, and the side walls 24, 26, 28 of the accommodation space. , 30 and the side surfaces 40, 42, 44, 46 of the small pad 16 are formed with gaps 25, 27, 29, 31 for facilitating the mounting of the small pad 16, and on the side walls 28, 30 of the housing space 18. The seat pad is provided with a ridge 50 extending upward from the lower end portion of the side wall, and provided with concave grooves 52 which are fitted to the side surfaces 44 and 46 of the small pad 16 while being compressed with each other.

  5 is an exploded perspective view of the seat pad 100, FIG. 6A is a sectional view in the front-rear direction of the seat pad 10, FIG. 5B is an exploded view thereof, and FIG. 7 is a sectional view in the left-right direction of the seat pad 10. 8 is a bottom view of the seat pad 10, FIG. 9 is a bottom view of the pad main body 14, and FIG. 10 is a top view of the small pad 16. In addition, the same code | symbol is attached | subjected and demonstrated to the part which is common in the said 1st Embodiment, and description of the overlapping part is abbreviate | omitted.

  Similarly to the seat pad 10, the seat pad 100 is provided with male side fasteners 61, 62 in a band shape between the left and right side portions of the seating sensor 12 and the left and right side walls 28, 30 on the ceiling surface 32 of the pad main body 14. Female side fasteners 63 and 64 are provided on the upper surface 34 of the small pad 16 at the relative positions of the male side fasteners 61 and 62.

  The seat pad 100 has gaps 25, 27 that facilitate insertion when the small pad 16 is mounted between the side surfaces 40, 42, 44, 46 of the small pad 16 and the side walls 24, 26, 28, 30 of the accommodation space 18. , 29 and 31 are formed so that the outer periphery of the side surface of the small pad 16 is smaller than the inner periphery of the accommodating space 18.

  The gaps 25, 27, 29, 31 are space portions in which the small pad 16 can be easily attached and detached between the side surfaces 40, 42, 44, 46 of the small pad 16 and the side walls 24, 26, 28, 30 of the receiving space 18. It is preferable to set so that the small pad 16 is deformed so as to fill this gap when seated, and an appropriate soft feeling is obtained, and the gap is provided with a gap of about 1 to 10 mm. .

  The left and right side walls 28 and 30 facing each other in the accommodation space 18 of the pad main body 14 are each provided with two ridges 50 protruding inward. The ridge 50 extends from the lower end opening of the housing space 18 to the upper ceiling surface 32, is formed with a substantially semicircular cross section of the ridge 51, and is opposed to the left and right side walls 28, 30. Thus, the positions in the front-rear direction are the same.

  On the other hand, the small pad 16 is provided with two concave grooves 52 extending in the vertical direction on the left and right side surfaces 44 and 46 so as to be fitted to the ridges 50. The groove 52 has a groove width slightly larger than that of the ridge 50 and the groove bottom 53 is formed in a substantially rectangular shape, and the groove depth is such that the top 51 and the groove bottom 53 of the ridge 50 are formed. It is formed to a depth that compresses while pressing each other. That is, the height of the top 51 is formed higher than the depth of the groove bottom 53.

  As a result, when the small pad 16 is mounted in the receiving space 18 of the pad main body 14, the male side fasteners 61 and 62 and the female side fasteners 63 and 64 are connected, and the small pad 16 can be mounted while preventing displacement. At the same time, the pad main body 14 is small from the left and right due to the repulsive force of both sides by fitting the convex top 51 of the side wall of the housing space 18 and the groove groove bottom 53 on the side of the small pad 16 in a state where they are compressed. The pad 16 is held, and the holding property is improved by the synergistic effect of the coupling force of the hook-and-loop fastener and the repulsive force, and the positional displacement and the drop-off of the small pad 16 after mounting are prevented.

  Moreover, since the ridges 50 and the grooves 52 are provided along the insertion direction of the small pad 16, there is no obstacle during insertion. In addition, since the contact is made only at the top 51 of the ridge 50 and the groove bottom 53 of the groove 52 and a gap is provided on the other peripheral surface, the small pad 16 can be easily inserted, and the ridge 50 is provided. The deformation of the pad due to the compression of the top 51 of the groove 52 and the groove bottom 53 of the concave groove 52 is partial and does not affect the shape of the surrounding pad. There will be no dropout or misalignment.

  Further, in the present embodiment, the left and right sides of the small pad 16 are sandwiched and held by the two protrusions 50 provided on the left and right side walls 28 and 30 of the accommodation space 18, respectively. The holding force due to the repulsion between the groove bottoms 53 of the concave grooves 52 is evenly applied, and the positioning effect in the front-rear direction can be ensured and the holding effect of the small pad 16 can be enhanced.

  In the above description, the protrusion 50 is provided on the pad body 14 side and the groove 52 is provided on the small pad 16 side. However, the groove 52 may be provided on the pad body 14 side and the protrusion 50 may be provided on the small pad 16 side. Moreover, the cross-sectional shape of the top of the ridge 50 and the groove bottom shape of the concave groove 52 are not limited to the semicircular shape or the substantially rectangular shape as described above.

  FIGS. 11 and 12 show a modification of the arrangement of the hook-and-loop fasteners 65, 66, 67 and 68, the ridges 50, and the grooves 52. In the example of FIG. 11, male side fasteners 65 and 66 are provided between the seating sensor 12 of the housing space 18 and the front and rear side walls 24 and 26, and the ridges 50 are provided at two opposite positions of the left and right side walls 28 and 30. Yes. In the example of FIG. 12, protrusions 50 are provided only at two opposite positions of the front and rear side walls 24, 26 of the accommodation space 18, and male side fasteners 67, 68 are provided between the seating sensor 12 and the left and right side walls 28, 30. ing. On the small pad 16 side, female side fasteners and concave grooves 52 are provided corresponding to the male side fasteners 65 to 68 and the ridges 50, respectively.

  Thus, by providing a plurality of hook-and-loop fasteners and a plurality of protrusions 50 and grooves 52 facing each other, the holding effect of both can be obtained at the same time. By providing the ridge and the groove, the holding effect can be greatly improved by preventing the positional deviation of the small pad 16 from front to back and from side to side without interfering with the installation.

  The seat pads 10 and 100 are generally covered with a skin such as a woven fabric or a knitted fabric, and are further mounted on a metal frame to constitute a vehicle seat. In the present invention, the skin is particularly bonded to the pad surface. It is effective for a skin-adhesive sheet pad to be bonded. In the case of a skin-adhesive seat pad, the skin is thin and the seating sensor 12 is not embedded in the pad so as to feel a foreign object or to reduce the appearance. can do.

  In the above embodiment, the case where the seating sensor is embedded has been described. However, the present invention can be similarly applied to the case where the heater is embedded. In addition, various functions such as a deodorizing sheet, a moisture absorbing sheet, an acoustic sheet, and a low frequency sheet for massage are used. It can use for a vehicle seat using the functional sheet which has these.

It is a disassembled perspective view of the seat pad concerning a 1st embodiment. It is the longitudinal cross-sectional view of the left-right direction of the seat pad. It is a bottom view of the pad main body of the seat pad. It is a top view of the small pad of the seat pad. It is a disassembled perspective view of the seat pad which concerns on 2nd Embodiment. It is the longitudinal cross-sectional view of the seat pad of the front-back direction, (a) is a state at the time of small pad mounting | wearing, (b) shows the state before mounting | wearing. It is the longitudinal cross-sectional view of the left-right direction of the seat pad. It is a bottom view of the seat pad. It is a bottom view of the pad main body of the seat pad. It is a top view of the small pad of the seat pad. It is a bottom view of the pad body showing a modification of the seat pad. It is a bottom view of the pad main part which shows the other modification of a seat pad.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10,100 ... Seat pad 12 ... Seating sensor 14 ... Pad body 16 ... Small pad 18 ... Accommodating space 32 ... Ceiling surface of accommodating space 34 ... Upper surface of small pad 61, 62, 63, 64 ... …Hook-and-loop fastener

Claims (5)

A pad body made of a flexible foam and a small pad made of a soft material mounted in a concave housing space provided on the bottom surface of the pad body, and between the upper surface of the small pad and the ceiling surface of the housing space In the cushion pad that arranges the sheet-like body in
A cushion pad comprising a connecting member that allows the ceiling surface of the housing space and the upper surface of the small pad to be detachable at a relative position between the ceiling surface of the housing space and the upper surface of the small pad.   The cushion pad according to claim 1, wherein the connecting member is a hook-and-loop fastener.   The cushion pad according to claim 1 or 2, wherein a gap is formed between a side wall of the housing space and a side surface of the small pad.   A concave groove or a ridge extending upward from the lower end of the side wall is provided on the side wall of the housing space, and the side surface of the small pad is mutually compressed with at least a part of the concave groove or the ridge wall surface of the housing space. 4. The cushion pad according to claim 3, further comprising a ridge or a groove that fits and holds the small pad in the accommodation space. The cushion pad according to any one of claims 1 to 4, wherein the sheet-like body is a functional seat such as a seating sensor or a heater.

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