cushion body

Abstract

Provided is a cushion body capable of compactly mounting a clip for hanging a seat cover into a base material. The cushion body (2) is a structure divided into three divided elements of a main pad (4) constituting a central part in a seat width direction and side pad (5) constituting both side surface parts in the seat width direction. The main pad (4) has a main base material (4B) as a support base, a main cover covering the main base material (4B) from a seat surface side, and a clip (CL) mounted to the main base material (4B) and hanging a part of the main cover. The clip (CL) has a clip seat (CL1) mounted to a seat surface (B1) of the main base material (4B) and a hanging portion (CL2) hanging the main cover. The main base material (4B) has a mounting portion (BA) which is snap-fitted with the clip seat (CL1) by sliding along the seat surface (B1) to be pressed into between the mounting portion (BA) and the seat surface (B1).

Description

Technical Field

[0001] This invention relates to a seat cushion, and more particularly, to a seat cushion that provides elastic support for the person sitting. Background Technology

[0002] Patent document 1 discloses a seat in which a seat cushion body, consisting of a seat pad and a seat cover enclosing the seat pad, is divided into three parts in the width direction of the seat. Specifically, the seat cushion body is divided into a main pad forming the central part in the width direction of the seat and side pads forming the two side parts in the width direction of the seat.

[0003] For the main seat cover and each side seat cover, each end of the seat cover, which encloses its respective seat cushion, is secured to a resin substrate laid on the back of the cushion. Furthermore, multiple sections of the seat cover are suspended and secured through through holes formed in the seat cushion by clips installed on the substrate. Thus, the main seat cover and each side seat cover form a structure in which the respective seat cushion is enclosed between the seat cover and the substrate.

[0004] Patent document 1: Japanese Patent Application Publication No. 2024-59202. Summary of the Invention The problem that the invention aims to solve

[0005] In the structure described in Patent Document 1, a snap-fit ​​method is used to install the clips onto the substrate from the back side. Therefore, the elastic claw with a guide structure for inserting and mounting the clips onto the back of the substrate extends significantly towards the back side. In view of this, the present invention provides a seat cushion body capable of compactly mounting clips for suspending a seat cover onto a substrate. Methods for solving problems

[0006] As a means to solve the above-mentioned problems, the cushion body of the present invention adopts the following technical solution.

[0007] That is, the first technical solution of the present invention is a seat cushion body that elastically supports the seated person. The seat cushion body is divided into three dividing elements: a main pad plate constituting the central part in the width direction of the seat and side pad plates constituting the two side parts in the width direction of the seat. At least one dividing element has: a base material as its respective support base, a seat cover that directly or indirectly covers the base material from the seat surface side, and a clip installed on the base material and suspending a part of the seat cover. The clip has: a clip seat installed on the seat surface of the base material, and a suspension part for suspending the seat cover. The base material has a mounting part, and the clip seat is snapped into the mounting part by sliding in the direction along the seat surface to press the clip seat between the mounting part and the seat surface.

[0008] According to the first technical solution, by providing a mounting part on the substrate that can receive the clip seat along the direction of the seat surface and engage it in a snap-fit ​​manner, the seat surface of the substrate can function as a guide for installation. This prevents the mounting part from protruding from the substrate, thus achieving a compact design.

[0009] The second technical solution of the present invention is based on the first technical solution described above. The mounting part has a pressing part and a bulging part. By sliding the clip seat in the direction along the seat surface, the clip seat can be inserted into the pressing part to press the clip seat between the pressing part and the seat surface. The bulging part bulges out from the seat surface, so that the clip seat is inserted while bending between the bulging part and the pressing part. By inserting the clip seat to a position beyond the bulging part, the mounting part installs the clip seat so that the bending is restored and pressed between the pressing part and the seat surface.

[0010] According to the second technical solution, by setting a structure that bends the mounting portion of the clip seat rather than the substrate, the structural strength of the substrate can be ensured while the clip seat is securely installed.

[0011] The third technical solution of the present invention is based on the second technical solution described above, wherein the seat surface of the substrate on which the clip seat is mounted is the surface of the substrate.

[0012] According to the third technical solution, there is no need to provide holes in the substrate for the suspension part of the clip to pass through from the back side, thus the mounting part can be constructed more simply. Attached Figure Description

[0013] Figure 1 This is a perspective view showing the schematic structure of the cushion body according to the first embodiment. Figure 2 It is an exploded 3D view showing the seat cushion removed from the backrest frame. Figure 3 This is an exploded 3D view of the main pad. Figure 4 yes Figure 3 Enlarged view of Part IV. Figure 5 It is Figure 4 An exploded perspective view of the clips being removed from the main substrate. Figure 6 This is a three-dimensional view of the upper half of the main pad, viewed from the back side of the pad. Figure 7 It is along Figure 6 A sectional view of the main pad plate cut along line VII-VII. Figure 8 This is a front view showing the positional relationship between the mounting part of the clip and the sound insulation component. Figure 9 It is along Figure 8 A cross-sectional view of the main pad plate cut along the IX-IX line. Figure 10 It is along Figure 8 A cross-sectional view of the main pad plate cut by X-ray. Detailed Implementation

[0014] Hereinafter, the embodiments for carrying out the present invention will be described with reference to the accompanying drawings.

[0015] Implementation Method 1 (Simplified structure of seat body 2) First, use Figures 1-10 The structure of the cushion body 2 according to the first embodiment of the present invention will be described. Furthermore, in the following description, when referring to directions such as front-back, up-down, left-right, etc., it refers to the directions shown in the accompanying drawings.

[0016] Additionally, when "seat width direction" or similar terms are indicated by the word "seat" in various directions, it refers to the direction based on the seat backrest 1 described later. Furthermore, in the following description, if specific reference drawings are not shown, or if corresponding reference numerals are not present in the reference drawings, appropriate references will be made. Figures 1-10 Any one of the attached images.

[0017] like Figure 1 As shown, the seat cushion 2 according to this embodiment is applied to the seat back 1 that constitutes the backrest of an automobile seat. For example... Figure 2 As shown, the seat back 1 has a cushion 2 that elastically supports the back of the person sitting and a backrest frame 3 that supports the cushion 2 from the back side (rear side).

[0018] The seat cushion 2 is a structure divided into three parts: a main cushion 4 forming the central part in the width direction of the seat, and left and right side cushions 5 forming the two side parts in the width direction of the seat. The backrest frame 3 is composed of metal components assembled into a frame shape when viewed from the front.

[0019] The seat cushion 2 is divided into a main cushion plate 4 and side cushion plates 5 as described above, allowing for the replacement of parts according to specifications at each segment. After the main cushion plate 4 and each side cushion plate 5 are assembled into a single unit according to each segment, they are individually assembled to the backrest frame 3.

[0020] Specifically, each side panel 5 is integrally fixed to the backrest frame 3 by clips (not shown) and bolts. After assembling each side panel 5 to the backrest frame 3, the main panel 4 is positioned to be inserted between them from the front of the seat. Specifically, the main panel 4 is fixed by hooking its upper and lower parts to the upper and lower parts of the backrest frame 3.

[0021] A seat ventilation fan SV is installed in the upper area within the frame of the backrest frame 3. The fan SV is designed to draw air from the seat surface through the main cushion plate 4. By drawing air in using the fan SV, air can circulate on the seat surface, thereby suppressing stuffiness when sitting.

[0022] The main pad 4 and each side pad 5 constitute a basic structure that shares a common structure. The following will use the main pad 4 as an example to explain in detail the structure of each segment of the seat cushion 2.

[0023] like Figure 3 As shown, the main pad 4 has a main pad 4A made of polyurethane foam and a main substrate 4B made of resin laid on the back of the main pad 4A. Furthermore, the main pad 4 has a main cover 4C made of fabric that covers the main pad 4A from the surface side of the pad. The periphery of the cover 4C is pulled into the back of the main substrate 4B and secured.

[0024] Thus, the main cover 4C is integrated with the main substrate 4B by enclosing the main liner 4A between itself and the main substrate 4B. As a result, the main liner 4 is assembled into a module. Here, the main substrate 4B corresponds to the "substrate" of the present invention, and the main cover 4C corresponds to the "seat cover" of the present invention.

[0025] The main pad 4 is embedded from above the seat via the main substrate 4B located on its back side. Figure 2 The upper part of the backrest frame 3 shown is integrally fixed. In addition, the main pad 4 is integrally fixed by pulling the lower end of its main cover 4C from the lower side toward the seat back and hooking it to the lower part of the backrest frame 3.

[0026] like Figure 3 As shown, resin clips CL are installed at multiple locations on the main substrate 4B to pull and secure a portion of the main cover 4C through the through hole A1 formed in the main liner 4A. Each clip CL is snap-fitted into place by being pressed into a corresponding mounting portion BA formed on the main substrate 4B.

[0027] Next, we will use Figures 4-5 Taking the clip CL shown as an example, the mounting structure of each clip CL relative to the main substrate 4B will be explained in detail. The clip CL is installed on the mounting part BA on the substrate surface of the main substrate 4B, i.e., the seat surface B1, by being inserted from the outside in the width direction of the seat. Thus, the clip CL is fixed in a state where it is pressed between the mounting part BA and the seat surface B1.

[0028] like Figure 5 As shown, the clip CL integrally comprises a flat clip seat CL1 that serves as a base for its installation and a suspension portion CL2 extending from the clip seat CL1 toward the front of the seat. The clip seat CL1 is formed into a longitudinally elongated flat shape when viewed from the front.

[0029] The suspension unit CL2 is designed to extend in a U-shape from the middle of the upper and lower parts of the buckle seat CL1 towards the front of the seat when viewed from above. The suspension unit CL2 is designed as the suspension line W (refer to) at the front end that is pulled into the main cover 4C. Figure 7 The structure is designed to be snapped into place by pressing the seat into the U-shaped part of the suspension CL2 from the front.

[0030] The mounting section BA has a pressing section BA1, which presses the four corners of the clip seat CL1 between the pressing section BA1 and the seat surface B1. The pressing section BA1 extends out of the seat surface B1 in a hook shape so as to press the four corners of the clip seat CL1 into place from the front of the seat. There is an opening T between the pressing section BA1 and the seat surface B1, which allows the clip seat CL1 to be inserted by sliding along the seat surface B1 from the outside in the width direction of the seat.

[0031] By inserting the clip CL1 along the seat surface B1 until its four corners are pressed in, the pressing part BA1 will cause the clip CL1 to abut and lock against the two corners of the inserted target (see reference). Figure 4 , Figure 10 The mounting part BA has a bulge BA2. When the above-mentioned clip seat CL1 is inserted, the bulge BA2 causes the clip seat CL1 to bend into an arc shape between the bulge BA2 and the pressing part BA1 while being inserted.

[0032] The bulge BA2 is formed to bulge out from the seat surface B1 of the main substrate 4B. Specifically, the bulge BA2 is formed to bulge out from the seat surface B1 at the center between the two corners of the pressing part BA1 near the front side into which the clip seat CL1 is inserted.

[0033] The bulge BA2 is formed in an oblique bulge shape so that the clip CL1 can be mounted on the seat surface B1 by inserting the clip CL1. Furthermore, the bulge BA2 is configured such that by inserting the clip CL1 into the four corners pressed into the pressing part BA1, the bending of the clip CL1 is restored (see reference). Figure 5 , Figure 9 ).

[0034] like Figure 5 As shown, the clip seat CL1 is designed with two sides having a constriction CL3 on both sides of its central portion in the longitudinal direction. Thus, by inserting the clip seat CL1 from the outside in the width direction of the seat into the opening T between the pressing part BA1 and the seat surface B1, the constriction CL3 is used to avoid interference with the bulge BA2, and the upper and lower ends of the clip seat CL1 are inserted between the two corners of the pressing part BA1 near the front side and the seat surface B1.

[0035] Next, as the insertion progresses, the clip seat CL1 will ride on the bulge BA2. Thus, by pressing the two ends of the clip seat CL1 with the two corners near the front of the pressing part BA1 and by the central part of the clip seat CL1 riding on the bulge BA2, the clip seat CL1 is inserted between the pressing part BA1 and the seat surface B1 while bending into an arc shape.

[0036] At this time, the suspension part CL2 extending from the clip seat CL1 passes through the space between the two corners near the front side of the pressing part BA1, and therefore will not interfere with the pressing part BA1. Furthermore, as... Figure 4 As shown, the clip seat CL1, when inserted into the four corners where it is pressed by the pressing part BA1, will fall off the bulge BA2 and return to its original bent state. As a result, the bulge BA2 becomes a stop that prevents the clip seat CL1 from disengaging outwards in the width direction of the seat, and the clip seat CL1 is installed in a state pressed between the mounting part BA and the seat surface B1 (see reference). Figure 10 ).

[0037] like Figures 6-7 As shown, the main cover 4C is pulled towards the seat back from the corresponding through holes A1 formed on the main pad 4A. When a gap is created between the main pad 4A with these through holes A1 and the main substrate 4B, Figure 2 The operating sound of the aforementioned blower SV can easily be transmitted to the seated person through the through hole A1.

[0038] Therefore, to suppress this sound leakage, a sponge-made sound-insulating member SM is provided on the back of the main pad 4A, individually surrounding each through hole A1. Each sound-insulating member SM is attached to the back of the main pad 4A using double-sided adhesive tape. Alternatively, each sound-insulating member SM can also be attached to the back of the main pad 4A using adhesive.

[0039] like Figure 7 As shown, by assembling the main pad 4 into a module, each sound insulation component SM is pressed against the front surface of the main substrate 4B. Specifically, as... Figure 8 As shown, each sound insulation component SM is configured to surround each through hole A1, and thus is pressed against the pressing part BA1 and its surroundings in a manner that passes through the pressing part BA1 at the four corners of the main substrate 4B.

[0040] As a result, each sound insulation component SM will be crushed to match the uneven shape formed by the bulge extending from the seat surface B1 by the pressing part BA1 and the recesses between the four corners of the pressing part BA1. The result is as follows: Figure 7 As shown, each sound insulation component SM is used to fill the gap between the main liner 4A and the main substrate 4B.

[0041] Since each sound insulation component SM is designed to be installed on the back of the main pad 4A, it is easy to properly align and surround each through hole A1. Furthermore, by using a sponge with a porous structure as each sound insulation component SM, sound leakage can be appropriately suppressed. Moreover, each sound insulation component SM can be appropriately crushed according to the shape of the gap between the main pad 4A and the main substrate 4B, thus appropriately suppressing sound leakage regardless of the shape of the gap.

[0042] In summary, the seat cushion 2 according to this embodiment adopts the following structure. Furthermore, the reference numerals in parentheses below correspond to the components shown in the above embodiments.

[0043] That is, the seat cushion (2) is a structure divided into three segments: a main cushion (4) forming the central part in the width direction of the seat and side cushions (5) forming the two side parts in the width direction of the seat. At least one segment has: a base material (4B) serving as its respective support base, a seat cover (4C) directly or indirectly covering the base material (4B) from the seat surface side, and a clip (CL) installed on the base material (4B) and suspending a part of the seat cover (4C).

[0044] The clip (CL) has a clip seat (CL1) for mounting to the seat surface (B1) of the substrate (4B) and a suspension part (CL2) for suspending the seat cover (4C). The substrate (4B) has a mounting part (BA) for snap-fitting the clip seat (CL1) into the mounting part (BA) by sliding it in the direction along the seat surface (B1) to press the clip seat (CL1) between the mounting part (BA) and the seat surface (B1).

[0045] Thus, by providing a mounting part (BA) on the substrate (4B) that can receive the clip seat (CL1) in the direction along the seat surface (B1) and engage it in a snap-fit ​​manner, the seat surface (B1) of the substrate (4B) can function as a guide for installation. As a result, the mounting part (BA) can be prevented from protruding from the substrate (4B) to achieve compactness.

[0046] Furthermore, the mounting portion (BA) has a pressing portion (BA1) and a protruding portion (BA2). By sliding the clip (CL1) in the direction along the seat surface (B1), the clip (CL1) can be inserted into the pressing portion (BA1) to press the clip (CL1) between the pressing portion (BA1) and the seat surface (B1). The protruding portion (BA2) protrudes from the seat surface (B1), causing the clip (CL1) to bend between the protruding portion (BA2) and the pressing portion (BA1) while being inserted. By inserting the clip (CL1) beyond the protruding portion (BA2), the mounting portion (BA) installs the clip (CL1) so that it is pressed between the pressing portion (BA1) and the seat surface (B1) to restore its bent shape. Thus, by providing a structure that bends the mounting portion (BA) of the clip (CL1) rather than the substrate (4B), the structural strength of the substrate (4B) can be ensured to securely install the clip (CL1).

[0047] Furthermore, the seat surface (B1) of the substrate (4B) for mounting the clip seat (CL1) is the substrate surface. According to the above structure, it is not necessary to provide a hole in the substrate (4B) for the suspension part (CL2) of the clip (CL) to pass through from the back, so the mounting part (BA) can be constructed more simply.

[0048] Regarding other implementation methods The above description of the embodiments of the present invention has been provided through one embodiment, but the present invention can be implemented in various other forms besides the above-described embodiments.

[0049] 1. The seat cushion of the present invention can also be applied to seats in vehicles other than automobiles, such as railways, airplanes, and ships. Furthermore, in addition to vehicles, the seat cushion can also be applied to seats in various facilities such as sports facilities, theaters, concert halls, and event venues, for use in non-vehicle vehicles. Additionally, the seat cushion can also be applied to seat structures other than seat cushions, such as seat cushions, headrests, footrests, and armrests.

[0050] 2. The seat cushion body can also be a structure where the seat cover directly covers the substrate without a seat liner. Alternatively, the seat cushion body can be a structure where a thin elastomer or polyurethane underlay is placed on the surface of the substrate instead of a seat liner.

[0051] The dividing element on the base material of the seat cushion body, which is used to install clips for hanging the seat cover, can also be a side pad. The mounting part formed on the base material can be a structure in which the clip seat is inserted and returned to its original position while bending, or it can be a structure in which the clip seat is snapped into place by bending the pressing part.

[0052] Furthermore, the mounting part only needs to be able to achieve a snap-fit ​​engagement by sliding the clip seat between the mounting part and the seat surface. Specifically, in addition to achieving a snap-fit ​​engagement by sliding the clip seat in the seat width direction of the seat back, the mounting part can also achieve a snap-fit ​​engagement by sliding in the seat height direction. The same applies when applied to other seat structures.

[0053] Alternatively, the mounting portion can be configured to mount the clip seat to the back side (seat surface) of the substrate. However, in this case, a hole needs to be provided in the substrate for the suspension portion of the clip to pass through from the back side to the front side. Furthermore, in order for the clip seat to slide along the direction of the seat surface and engage with the mounting portion in a snap-fit ​​manner, the hole needs to be configured to allow the suspension portion of the clip to slide through. Explanation of reference numerals in the attached figures

[0054] 1. Seat backrest 2. Seat Cushion 3 Backrest Frame 4. Main pad 4A Main Pad A1 Through Hole 4B Main substrate (substrate) B1 seat surface 4C Main Cover (Seat Cover) 5. Side pads CL clip CL1 Clip Seat CL2 suspension unit CL3 neck constriction BA Installation Department BA1 Pressing Part BA2 Drum Section SM sound insulation components SV blower T-shaped opening W suspension line.

Claims

1. A seat cushion that provides elastic support for the person sitting on it. The seat cushion is divided into three parts: a main cushion plate forming the central part in the width direction of the seat, and side cushion plates forming the two side parts in the width direction of the seat. At least one of the dividing elements has: a base material serving as its respective support base, a seat cover that directly or indirectly covers the base material from the seat surface side, and a clip mounted on the base material and suspending a portion of the seat cover therein. The clip has: a clip seat mounted on the seat surface of the substrate, and a suspension part for suspending the seat cover. The substrate has a mounting portion, which is snapped into place between the mounting portion and the seat surface by sliding the clip seat in the direction along the seat surface.

2. The seat cushion body according to claim 1, wherein, The mounting portion has a pressing portion and a bulging portion. By sliding the clip seat in the direction along the seat surface, the clip seat can be inserted into the pressing portion to press the clip seat between the pressing portion and the seat surface. The bulging portion protrudes from the seat surface, causing the clip seat to bend between the bulging portion and the pressing portion while being inserted. By inserting the clip seat to a position beyond the bulge, the mounting portion installs the clip seat so that it is pressed into the pressing portion and the seat surface in a bending-restoring manner.

3. The seat cushion body according to claim 2, wherein, The seat surface of the substrate for mounting the clip seat is the substrate surface.

Images