JP7525879B2 - Sheet - Google Patents

Description

The present invention relates to a seat, and in particular to a structure for fixing a trim to a cushion pad.

Seats such as automobile seats have a seat cushion that supports the buttocks of the seated person and a seat back that supports the back of the seated person, and these have a structure in which a cushion pad made of a resin material or the like is covered with a trim made of leather, vinyl leather, or the like. The trim is fixed to the cushion pad on the back side of the cushion pad (the side opposite the side that comes into contact with the buttocks or back).

Patent document 1 discloses a structure in which the edge of the trim is fixed to a seat frame that is integrally molded with the cushion pad on the back surface of the cushion pad using an ohm clip.

Patent document 2 also discloses a structure in which a fastener with an arrowhead-shaped tip and to which the edge of the trim is fixed is pushed into a hole provided in the cushion pad on the back surface of the cushion pad, thereby fixing the trim to the cushion pad.

Japanese Patent Application Publication No. 09-276091 Patent No. 6107460

However, with the structures disclosed in Patent Documents 1 and 2, it is difficult to secure the trim to the cushion pad with high workability. Specifically, with the structure disclosed in Patent Document 1, it is necessary to use a hook ringer when attaching the ohm clip to the seat frame, but the hook ringer is heavy and does not allow for good workability.

In addition, in the structure disclosed in Patent Document 2, in order to prevent the fastener pushed through the hole in the cushion pad from easily coming out, it is necessary to make the width of the arrowhead-shaped part at the tip of the fastener larger than the width of the hole, and a large force is required when pushing it in. Therefore, even with the structure disclosed in Patent Document 2, it is difficult to fix the trim with high workability. Furthermore, when the end user replaces the trim, it is necessary to remove the arrowhead-shaped part of the fastener from the cushion pad, but the arrowhead-shaped part disclosed in Patent Document 2 is not flexible, and when trying to remove the arrowhead-shaped part from the cushion pad, the corners of the arrowhead-shaped part scrape the cushion pad. As a result, it becomes impossible to fix the arrowhead-shaped part in the hole again, and there is a risk that it will be necessary to replace the entire cushion pad.

The present invention seeks to solve the above problems, and aims to provide a seat with a structure that allows the trim to be attached and detached from the cushion pad with high workability.

A seat according to one aspect of the present invention includes a cushion pad having a support region that supports a seated occupant and another region excluding the support region and having a hole in a thickness direction, a covering region that covers the support region of the cushion pad, a trim having an edge portion disposed in the vicinity of the hole, and a clip to which the edge portion of the trim is fixed and which is inserted into the hole to fix the trim and the cushion pad, the clip having a trim fixing portion to which the edge portion of the trim is fixed, a base portion having a flat plate shape, continuous with the trim fixing portion and inserted into the hole of the cushion pad, and a pressing portion having one end that is continuous with the base portion and the other end that is a free end, which is inserted into the hole together with the base portion while following the base portion, and which is flexible, and the pressing portion has a front When inserted into the hole together with the base portion, the one end is continuous with a bottom end of the bottom side of the hole in the base portion, the other end is disposed on the opening side of the hole, and between the one end and the other end in the depth direction of the hole, there is a first curved portion curved so as to curve away from the base portion as it moves from the one end to the opening side of the hole, and a second curved portion that is continuous with the end of the opening side of the first curved portion and curved so as to approach the base portion as it moves toward the opening side of the hole, and the portion of the other end side than the one end deforms so as to bend toward the base portion, thereby applying an outward pressing force to the first side wall surface of the hole with which the pressing portion abuts, and the base portion has a recessed portion near the bottom end of the base portion that is recessed so as to be thinner than other portions of the base portion .

In the seat according to the above embodiment, the trim can be fixed to the cushion pad by the simple operation of pushing the base and pressing parts of the clip, to which the edge of the trim is previously fixed, into the hole in the cushion pad. Therefore, in the seat according to the above embodiment, there is no need to use a heavy hook ringer when fixing the trim to the cushion pad, as in the technology disclosed in Patent Document 1.

In addition, in the sheet according to the above embodiment, the pressing portion of the clip is formed to be flexible, so that when inserting the base portion and the pressing portion into the hole, a large force is not required, as is the case with the technology disclosed in Patent Document 2.

In addition, in the seat according to the above aspect, the pressing portion of the clip applies an outward pressing force to the first side wall surface within the hole provided in the cushion pad, so the clip does not easily come out of the hole. Therefore, in the seat according to the above aspect, the trim can be fixed to the cushion pad with high workability as described above, and the trim can be prevented from coming off the cushion pad when the seat is in use.

In addition, in the sheet according to the above aspect, since the pressing portion of the clip has flexibility, even if the clip is to be removed from the hole, it is possible to prevent the pressing portion from scraping the first side wall surface. That is, in the fastener disclosed in the above Patent Document 2, since the arrowhead portion does not have flexibility, for example, when an end user tries to remove the fastener for replacing the trim, the side wall surface of the hole is scraped, and the cushion pad cannot be used again in this state.
In contrast, in the seat according to the above aspect, the pressing portion of the clip is flexible, so that even if one tries to remove the clip from the hole in the cushion pad, the first side wall surface will not be scraped, and the cushion pad can be used again in its current state.
In addition, in the sheet of the above-mentioned embodiment, by integrally molding the clip so that one end of the pressing portion is continuous with the bottom end of the base portion (the end portion that becomes the bottom of the hole when inserted into the hole), the number of parts can be reduced compared to when the base portion and the pressing portion are formed as separate members, which is advantageous in reducing manufacturing costs.
In addition, in the sheet according to the above aspect, the pressing portion has a structure including a first curved portion and a second curved portion, so that the pressing portion is less likely to get caught on the first side wall surface when inserting into the hole or removing from the hole, and therefore the first side wall surface of the hole is less likely to be scraped when inserting or removing.
In the sheet according to the above aspect, a recess (cutout) is provided near the bottom end of the base portion, and the thickness of this portion is made thinner than the other portions of the base portion, so that the pressing portion can be easily bent starting from the portion where the recess is provided. Note that the flexibility of the pressing portion can be adjusted by the degree of recession, in other words, by how thin the thickness of the recess is made.

Therefore, the seat according to the above aspect can achieve high workability when attaching and detaching the trim to the cushion pad.

A seat according to another aspect of the present invention includes a cushion pad having a support region that supports a seated occupant and another region excluding the support region and having a hole in a thickness direction, a covering region that covers the support region in the cushion pad, a trim having an edge portion disposed in the vicinity of the hole, and a clip to which the edge portion of the trim is fixed and which is inserted into the hole to fix the trim and the cushion pad, the clip having a trim fixing portion to which the edge portion of the trim is fixed, a base portion having a flat plate shape, continuous with the trim fixing portion and inserted into the hole of the cushion pad, and a pressing portion having one end that is continuous with the base portion and the other end that is a free end, which is inserted into the hole together with the base portion while following the base portion, and which has flexibility, and the pressing portion is When inserted into the hole together with the base portion, the one end is continuous with a bottom end of the bottom side of the hole in the base portion, the other end is disposed on the opening side of the hole, and between the one end and the other end in the depth direction of the hole, there is a first curved portion curved so as to move away from the base portion as it moves from the one end to the opening side of the hole, and a second curved portion that is continuous with the end of the opening side of the first curved portion and curved so as to move closer to the base portion as it moves toward the opening side of the hole, and the portion of the other end side than the one end deforms so as to bend toward the base portion, thereby applying an outward pressing force to a first side wall surface of the hole against which the pressing portion abuts, and the first side wall surface of the hole is recessed outward from the hole, and has a recess into which the portion of the pressing portion furthest from the base portion fits.

In the seat according to the above aspect, the trim can be fixed to the cushion pad by a simple operation of pushing the base portion and the pressing portion of the clip, to which the edge portion of the trim is previously fixed, into the hole in the cushion pad. Therefore, in the seat according to the above aspect, it is not necessary to use a heavy hook ringer when fixing the trim to the cushion pad, as in the technology disclosed in the above Patent Document 1.
Furthermore, in the sheet according to the above aspect, the pressing portion of the clip is formed to be flexible, so that when inserting the base portion and the pressing portion into the hole, a large force is not required as in the technology disclosed in Patent Document 2.
In the seat according to the above aspect, the pressing portion of the clip applies an outward pressing force to the first side wall surface within the hole provided in the cushion pad, so that the clip does not easily come out of the hole. Therefore, in the seat according to the above aspect, the trim can be fixed to the cushion pad with high workability as described above, and the trim can be prevented from coming out of the cushion pad when the seat is in use.
In addition, in the sheet according to the above aspect, since the pressing portion of the clip has flexibility, even if the clip is to be removed from the hole, it is possible to prevent the pressing portion from scraping the first side wall surface. That is, in the fastener disclosed in the above Patent Document 2, since the arrowhead portion does not have flexibility, for example, when an end user tries to remove the fastener for replacing the trim, the side wall surface of the hole is scraped, and the cushion pad cannot be used again in this state.
In contrast, in the seat according to the above aspect, the pressing portion of the clip is flexible, so that even if one tries to remove the clip from the hole in the cushion pad, the first side wall surface will not be scraped, and the cushion pad can be used again in its current state.
In addition, in the sheet of the above-mentioned embodiment, by integrally molding the clip so that one end of the pressing portion is continuous with the bottom end of the base portion (the end portion that becomes the bottom of the hole when inserted into the hole), the number of parts can be reduced compared to when the base portion and the pressing portion are formed as separate members, which is advantageous in reducing manufacturing costs.
In addition, in the sheet according to the above aspect, the pressing portion has a structure including a first curved portion and a second curved portion, so that the pressing portion is less likely to get caught on the first side wall surface when inserting into the hole or removing from the hole, and therefore the first side wall surface of the hole is less likely to be scraped when inserting or removing.
In addition, in the sheet according to the above aspect, a recess is provided on the first side wall surface, and the above-mentioned portion of the pressing portion is configured to fit into the recess, so that when the above-mentioned portion of the pressing portion reaches the recess, the operator feels a fitting sensation. Therefore, it is effective in improving workability.
Furthermore, in the sheet according to the above aspect, a structure is adopted in which the above-mentioned portion of the pressing portion fits into the recess, which is effective in preventing the clip from coming out of the hole.
Therefore, in the seat according to the above aspect, high workability can be achieved when attaching and detaching the trim to and from the cushion pad.

According to yet another aspect of the present invention, there is provided a seat including a cushion pad having a support region for supporting a seated occupant and another region excluding the support region and having a hole in a thickness direction, a covering region for covering the support region in the cushion pad, a trim having an edge portion disposed in the vicinity of the hole, and a clip for fixing the edge portion of the trim and the cushion pad by being inserted into the hole, the clip having a trim fixing portion to which the edge portion of the trim is fixed, a base portion having a flat plate shape, continuous with the trim fixing portion and inserted into the hole of the cushion pad, and a pressing portion having one end continuous with the base portion and the other end being a free end, the pressing portion being inserted into the hole together with the base portion while being aligned with the base portion, and having flexibility, the pressing portion pressing the hole together with the base portion In an inserted state, the one end is continuous with a bottom end on a bottom side of the hole in the base portion, the other end is disposed on the opening side of the hole, and a first curved portion is provided between the one end and the other end in the depth direction of the hole, the first curved portion being curved so as to move away from the base portion as it moves from the one end to the opening side of the hole, and a second curved portion is provided which is continuous with an end portion on the opening side of the first curved portion and curves so as to move closer to the base portion as it moves to the opening side of the hole, and a portion of the other end side than the one end deforms so as to bend toward the base portion, thereby applying an outward pressing force to a first side wall surface of the hole with which the pressing portion abuts, the hole is a first groove portion having a groove shape, the cushion pad has a second groove portion opened along the first groove portion, and a region of the cushion pad between the first groove portion and the second groove portion is flexible.

In the seat according to the above aspect, the trim can be fixed to the cushion pad by a simple operation of pushing the base portion and the pressing portion of the clip, to which the edge portion of the trim is previously fixed, into the hole in the cushion pad. Therefore, in the seat according to the above aspect, it is not necessary to use a heavy hook ringer when fixing the trim to the cushion pad, as in the technology disclosed in the above Patent Document 1.
Furthermore, in the sheet according to the above aspect, the pressing portion of the clip is formed to be flexible, so that when inserting the base portion and the pressing portion into the hole, a large force is not required as in the technology disclosed in Patent Document 2.
In the seat according to the above aspect, the pressing portion of the clip applies an outward pressing force to the first side wall surface within the hole provided in the cushion pad, so that the clip does not easily come out of the hole. Therefore, in the seat according to the above aspect, the trim can be fixed to the cushion pad with high workability as described above, and the trim can be prevented from coming out of the cushion pad when the seat is in use.
In addition, in the sheet according to the above aspect, since the pressing portion of the clip has flexibility, even if the clip is to be removed from the hole, it is possible to prevent the pressing portion from scraping the first side wall surface. That is, in the fastener disclosed in the above Patent Document 2, since the arrowhead portion does not have flexibility, for example, when an end user tries to remove the fastener for replacing the trim, the side wall surface of the hole is scraped, and the cushion pad cannot be used again in this state.
In contrast, in the seat according to the above aspect, the pressing portion of the clip is flexible, so that even if one tries to remove the clip from the hole in the cushion pad, the first side wall surface will not be scraped, and the cushion pad can be used again in its current state.
In addition, in the sheet of the above-mentioned embodiment, by integrally molding the clip so that one end of the pressing portion is continuous with the bottom end of the base portion (the end portion that becomes the bottom of the hole when inserted into the hole), the number of parts can be reduced compared to when the base portion and the pressing portion are formed as separate members, which is advantageous in reducing manufacturing costs.
In addition, in the sheet according to the above aspect, the pressing portion has a structure including a first curved portion and a second curved portion, so that the pressing portion is less likely to get caught on the first side wall surface when inserting into the hole or removing from the hole, and therefore the first side wall surface of the hole is less likely to be scraped when inserting or removing.
Furthermore, in the sheet relating to the above-mentioned aspect, if a second groove portion is provided along the first groove portion (the hole portion into which the base portion and pressing portion of the clip are inserted) and the area between the first groove portion and the second groove portion in the cushion pad is configured to be flexible, then by bending the area between the first groove portion and the second groove portion, the pressing force of the pressing portion against the side wall surface of the first groove portion is alleviated or released, and the clip can be easily removed from the first groove portion.
Therefore, in the seat according to the above aspect, high workability can be achieved when attaching and detaching the trim to and from the cushion pad.

In the sheet according to the above aspect, the base portion may have a recessed portion near the bottom end of the base portion that is recessed so as to have a thickness thinner than other portions of the base portion.

As described above, by providing a recess (cutout) near the bottom end of the base and making the thickness of that portion thinner than the remaining portions of the base, the pressing portion can be made more flexible starting from the portion where the recess is provided. Note that the flexibility of the pressing portion can be adjusted by the degree of recession, in other words, by how thin the thickness of the recess is made.

In the sheet according to the above aspect, the first side wall surface of the hole portion may have a recessed portion that is recessed outwardly of the hole portion and into which the part of the pressing portion that is furthest from the base portion fits.

As described above, by providing a recess on the first side wall surface and configuring the portion of the pressing portion to fit into the recess, the operator feels a sense of engagement when the portion of the pressing portion reaches the recess, which is effective in improving workability.
Furthermore, by adopting a structure in which the above-mentioned portion of the pressing portion fits into the recess, it is effective in preventing the clip from coming out of the hole.

In the seat according to the above aspect, the hole portion may be a first groove portion having a groove shape, the cushion pad may have a second groove portion opened along the first groove portion, and an area of the cushion pad between the first groove portion and the second groove portion may be flexible.

As described above, by providing a second groove portion along the first groove portion (the hole portion into which the base portion and pressing portion of the clip are inserted) and adopting a configuration in which the area between the first groove portion and the second groove portion in the cushion pad is flexible, the pressing force of the pressing portion against the side wall surface of the first groove portion is alleviated or released by bending the area between the first groove portion and the second groove portion, and the clip can be easily removed from the first groove portion.

In the sheet according to the above aspect, the first side wall surface of the hole portion may have a recessed portion that is recessed outwardly from the hole portion and into which a portion of the pressing portion that is furthest from the base portion fits, the hole portion is a first groove portion having a groove shape, the cushion pad has a second groove portion opened along the first groove portion, and a region of the cushion pad between the first groove portion and the second groove portion may be flexible.

As described above, by providing a recess on the first side wall surface and configuring the portion of the pressing part to fit into the recess, the operator feels a sense of engagement when the portion of the pressing part reaches the recess, which is effective in improving workability.
Furthermore, by adopting a structure in which the above-mentioned portion of the pressing portion fits into the recess, it is effective in preventing the clip from coming out of the hole.
Furthermore, as described above, by providing a second groove portion along the first groove portion (the hole portion into which the base portion and pressing portion of the clip are inserted) and adopting a configuration in which the area between the first groove portion and the second groove portion in the cushion pad is flexible, the pressing force of the pressing portion against the side wall surface of the first groove portion is alleviated or released by bending the area between the first groove portion and the second groove portion, and the clip can be easily removed from the first groove portion.

In the seat according to the above aspect, the trim fixing portion may have a plate shape and extend along an outer surface of the cushion pad to a location between the first groove portion and the second groove portion, and the cushion pad may have a recess that is recessed in a thickness direction of the cushion pad at an end edge of the trim fixing portion in a direction from the first groove portion toward the second groove portion and at a region in the vicinity of the end edge.

As described above, by providing a recess at the location where the end edge of the trim fixing portion on the cushion pad is located and in the surrounding area, an operator can insert a finger or the like into the recess and lift the trim fixing portion away from the outer surface of the cushion pad, thereby easing or releasing the pressing force of the pressing portion against the side wall surface of the first groove portion, making it possible to easily remove the clip from the first groove portion.

In the seat according to the above aspect, the cushion pad may have a relatively hard pad and a relatively soft pad laminated on the hard pad, and in the other region of the cushion pad, the hard pad is exposed to the outside, and the hole portion may be provided in the hard pad.

When using a cushion pad having a laminated structure of a hard pad and a soft pad as described above, providing a hole in the hard pad is advantageous in that the clip can be fixed to the hole more reliably. Therefore, when the above configuration is adopted, the trim can be fixed to the cushion pad more reliably.

In the sheet relating to the above-mentioned aspect, the clip may further have a return portion protruding toward the opposite side from the pressing portion in the thickness direction of the base portion and having a pointed tip, and the return portion of the clip may be configured so that the tip is pushed against a second side wall surface opposite the first side wall surface by a reaction force from the first side wall surface against the pressing force of the pressing portion, and engages with the second side wall surface.

As described above, if a configuration is adopted in which the barb engages with the second side wall surface when the base is inserted to the bottom of the hole, this is advantageous in terms of preventing the clip from slipping out of the hole.

In the seat according to the above aspect, the folded portion may be provided in the vicinity of the bottom end of the base portion.

As described above, when the structure in which the return portion is provided near the bottom end of the base portion is adopted, even when a force is applied to the clip in a direction that causes the clip to come out of the hole, the clip can be prevented from easily coming out of the hole. In other words, when the return portion is provided in a portion of the base portion near the opening of the hole, the return portion will come out of the opening of the hole when the above-mentioned force is applied.
In contrast, when a structure in which the return portion is provided near the bottom end of the base portion is adopted as described above, even if a force is applied in a direction that causes the base portion to come out of the hole, there is a distance from the initial position of the second side wall surface to the opening of the hole, so that the return portion can be sufficiently inserted into the second side wall surface and the return portion will not immediately come out of the opening of the hole. Therefore, when the above configuration is adopted, it is possible to prevent the clip from easily coming out of the hole.

In the sheet according to the above aspect, a thickness of the first curved portion and the second curved portion of the pressing portion may be smaller than a thickness of the base portion.

As described above, by making the thickness of the first curved portion and the second curved portion of the pressing portion thinner than the thickness of the base portion, when the base portion and the pressing portion of the clip are inserted into the hole, the pressing portion can be bent more reliably than the base portion, thereby realizing reliable pressing of the pressing portion against the first side wall surface.

In the sheet relating to the above aspect, when the base portion and the pressing portion are inserted into the hole portion, the orientation direction of the other end of the pressing portion may be toward the opening side of the hole portion and toward the base portion.

As described above, by directing the pressing portion in the direction toward the opening side of the hole and toward the base portion, it is possible to prevent the other end of the pressing portion from scraping the first side wall surface even when attempting to remove the clip from the hole for replacing the trim, etc. Therefore, even when the clip is removed from the hole, the cushion pad can be reused as is.
In the seat relating to the above-mentioned aspect, the hole portion may be a groove portion having a groove shape, the trim fixing portion may have an elongated shape extending along the groove portion, and when the opening of the groove portion is viewed in a plane from the outside, the fixing point of the trim to the trim fixing portion may extend linearly along the longitudinal direction of the trim fixing portion.

As described above, if the fixing point of the trim to the trim fixing part is made to extend linearly along the longitudinal direction of the trim fixing part, unevenness in the degree of tension of the trim is unlikely to occur. Specifically, in the structure disclosed in the above Patent Document 1, the trim is fixed to the seat frame using Ohm clips. The trim is fixed to the seat frame at points that are spaced apart from each other. Therefore, in the structure disclosed in the above Patent Document 1, unevenness in the degree of tension of the trim occurs, which is likely to cause wrinkles.

In contrast, if the edge of the trim is fixed linearly to the trim fixing portion as described above, unevenness in the degree of tension on the trim is less likely to occur, and the occurrence of wrinkles is suppressed.

In the seats according to the above aspects, the trim can be attached and detached from the cushion pad with high workability.

In addition, in the seats according to each of the above aspects, the clips can be removed from the cushion pad while preventing damage to the cushion pad, making it easy to replace the trim.

FIG. 2 is a development view showing the configuration of a seat according to the embodiment. FIG. 4 is a perspective view showing a configuration of a rear surface of the cushion pad. 3 is a cross-sectional view taken along line III-III in FIG. 2. 11 is a cross-sectional view showing a state in which a clip is engaged with a groove provided in a hard pad. FIG. FIG. 2 is a perspective view showing a configuration of a clip. FIG. 4 is a side view showing the configuration of the clip. FIG. 4 is a development view showing the relationship between a groove provided in a hard pad and a clip. 1A is a cross-sectional view showing the operating procedure for removing a clip from a groove, in which (a) shows a state in which an operator inserts a finger into a recess to bend the clip, and (b) shows a state in which the area between the groove and the bending groove in the hard pad is bent. 11A and 11B are cross-sectional views showing another operating procedure for removing a clip from a groove, in which (a) shows an operator holding the clip, and (b) shows a state in which a force is applied to the clip to bend the area between the groove and the flexible groove in the hard pad.

The following describes an embodiment of the present invention with reference to the drawings. Note that the embodiment described below is merely an example of the present invention, and the present invention is not limited to the embodiment described below except for its essential configuration.

[Embodiment]
1. General Configuration of Seat 1 The seat 1 according to this embodiment is a vehicle seat such as an automobile, and a rear seat is used as an example.

The general configuration of the seat 1 will be described with reference to Figures 1 to 3. Note that in each of the figures attached to this specification, only the seat cushion 10 of the seat 1 is shown, and the seat back is not shown.

As shown in FIG. 1, the seat cushion 10 of the seat 1 includes a cushion pad 11 and a trim 12. The cushion pad 11 supports the buttocks of a seated occupant with its front surface 11a. In other words, the front surface 11a of the cushion pad 11 corresponds to the "support area" and the other areas correspond to the "other areas."

As shown in FIG. 3, the cushion pad 11 is formed by laminating a relatively hard pad 111 and a relatively soft pad 112. The soft pad 112 is laminated on the front surface 11a and front surface 11e of the cushion pad 11 so as to cover the hard pad 111. The hard pad 111 is exposed to the outside on the back surface 11b side of the cushion pad 11.

The hard pad 111 is relatively hard compared to the soft pad 112, and the soft pad 112 is relatively soft compared to the hard pad 111. Specifically, the hard pad 111 is made of bead foam and has shape retention, while the soft pad 112 is made of urethane foam and has elasticity.

Returning to FIG. 1, the trim 12 is provided so as to cover at least the front surface 11a and the front surface 11e of the cushion pad 11. In this embodiment, the area of the trim 12 that covers the front surface 11a and the front surface 11e corresponds to the "covered area." The trim 12 is made of a sheet-like material such as leather or vinyl leather.

As shown in FIG. 2, when the cushion pad 11 is viewed in plan from the back surface 11b side, the hard pad 111 is exposed to the outside except for the edge portion. A plurality of grooves 11c are provided along the outer edge of the hard pad 111. Each of the plurality of grooves 11c has an elongated opening.

As shown in FIG. 3, each groove 11c has a recess 11d in the middle of the depth direction that is recessed outward in the cross-sectional direction of the groove 11c.

Returning to FIG. 2, a flexible groove 11j is provided along each groove 11c and spaced apart from each groove 11c. The groove 11c is a "hole" and corresponds to the "first groove", while the flexible groove 11j corresponds to the "second groove".

As shown in FIG. 3, the flexible groove 11j is formed to have approximately the same groove depth as the groove 11c. The area between the groove 11c and the flexible groove 11j in the hard pad 111 bends in the X direction when an external force is applied.

Returning to FIG. 2, in the region between the groove 11c and the flexible groove 11j, recesses 11k are provided on both longitudinal sides of the openings of the groove 11c and the flexible groove 11j.

As shown in FIG. 3, the depth of the recess 11k is shallower than the depth of the groove 11c and the flexible groove 11j.

2. Fixing the Trim 12 to the Cushion Pad 11 The manner in which the trim 12 is fixed to the cushion pad 11 will be described with reference to FIG.

As shown in FIG. 4, the edge 12a of the trim 12 is disposed on the back surface 11b of the cushion pad 11. The edge 12a of the trim 12 is fixed to the clip 13. A portion of the clip 13 is inserted into a groove 11c provided in the hard pad 111.

The edge of the portion of the clip 13 to which the trim 12 is fixed is located on a recess 11k provided in the hard pad 111.

The detailed structure of the clip 13 will be described later.

3. Structure of Clip 13 The structure of the clip 13 will be described with reference to FIGS.

As shown in FIG. 5, the clip 13 has an elongated shape with a dimension L13 in the Y direction that is longer than the dimensions in the X direction and the Z direction. The dimension L13 is, for example, 50 mm to 150 mm. As shown in FIG. 5 and FIG. 6, the clip 13 is formed by integrally forming a trim fixing portion 13a, a base portion 13b, a pressing portion 13d, and a return portion 13g. The clip 13 is formed, for example, using polypropylene.

As shown in FIG. 6, the trim fixing portion 13a and the base portion 13b are formed so that one end of the trim fixing portion 13a in the X direction and one end of the base portion 13b in the Z direction are continuous. The trim fixing portion 13a has a width W13 in the X direction and a thickness T1 in the Z direction. The base portion 13b has a height H13 in the Z direction and a thickness T2 in the X direction.

The dimensions are, for example, width W13 15-20 mm, thickness T1 1-4 mm, height H13 15-20 mm, and thickness T2 1-4 mm. In this embodiment, as an example, W13 = 17.4 mm, T1 = 2 mm, and H13 = 18.8 mm.

The pressing portion 13d is formed so that one end 13i of the pressing portion 13d in the Z direction is continuous with the bottom end 13c of the base portion 13b in the Z direction. The pressing portion 13d has a first curved portion 13j and a second curved portion 13e. The first curved portion 13j is formed in a curved shape so as to move away from the base portion 13b as it moves from the one end 13i toward the trim fixing portion 13a side in the Z direction (the upper side in Figure 6).

The second curved portion 13e is continuous with the first curved portion 13j at the end of the first curved portion 13j (the end on the trim fixing portion 13a side) and is curved so as to approach the base portion 13b as it approaches the trim fixing portion 13a side in the Z direction (the upper side in Figure 6).

The end 13h of the second curved portion 13e on the side of the trim fixing portion 13a in the Z direction (upper side in FIG. 6) is not connected to the trim fixing portion 13a or the base portion 13b. When no external force is acting on the pressing portion 13d (as shown in FIG. 6), a gap G1 is left between the second curved portion 13e and the trim fixing portion 13a, and a gap G2 is left between the second curved portion 13e and the base portion 13b.

As shown in FIG. 6, the second curved portion 13e is formed so that the other end 13h of the second curved portion 13e faces the direction indicated by the arrow B. The direction indicated by the arrow B faces the trim fixing portion 13a side and also faces the base portion 13b side.

Here, in the clip 13 according to this embodiment, the other end 13h of the pressing portion 13d is formed with a curved surface.

When no external force is acting on the pressing portion 13d (as shown in FIG. 6), point P13d, which is the boundary between the first curved portion 13j and the second curved portion 13e, is the furthest from the base portion 13b. The distance from the outside of the base portion 13b to the outside of the pressing portion 13d at point P13d is W13d. Note that distance W13d is set in relation to the groove width of groove portion 11c (see FIG. 3 and FIG. 4) provided in the cushion pad 11, and in this embodiment, it is set to, for example, 5 to 10 mm (6.5 mm as an example).

The maximum thickness of the pressing portion 13d is T3. The thickness T3 is set to be thinner than the thickness T2 of the base portion 13b. In this embodiment, as an example, T3 = 1.2 mm. By making the thickness T3 thinner than the thickness T2 in this way, when the base portion 13b and the pressing portion 13d are inserted into the groove portion 11c, the pressing portion 13d can be reliably deflected as shown by arrow A by the reaction force from the side wall surface of the groove portion 11c.

Furthermore, near the bottom end 13c of the base portion 13b, in other words, at the connection portion between the base portion 13b and the pressing portion 13d, a recessed portion 13f is formed, which is recessed so that the thickness is thinner than other portions of the base portion 13b. The formation of the recessed portion 13f also makes it easier for the pressing portion 13d to bend as shown by arrow A, starting from the portion where the recessed portion 13f is provided. The flexibility of the pressing portion 13d can be adjusted by the degree of recession, in other words, the degree to which the thickness at the recessed portion 13f is made thinner.

The return portion 13g protrudes from near the bottom end 13c of the base portion 13b toward the opposite side from the side from which the pressing portion 13d is extended (the right side in the X direction in FIG. 6), and has a pointed tip. The upper surface of the return portion 13g in the Z direction is formed as a flat surface that is approximately parallel to the trim fixing portion 13a. The amount of protrusion of the return portion 13g is W13g. The amount of protrusion W13g is, for example, 1 to 2 mm, and in this embodiment, as an example, W13g = 1.5 mm.

4. Fixing the Trim 12 to the Cushion Pad 11 Fixing the trim 12 to the hard pad 111 of the cushion pad 11 will be described with reference to FIG.

As shown in FIG. 7, the edge 12a of the trim 12 is fixed to the trim fixing portion 13a of the clip 13. Although not shown in FIG. 7, the trim fixing portion 13a is formed in an elongated shape so as to follow the groove portion 11c (see FIG. 5). When viewed in a plan view from the Z direction, the trim 12 is fixed to the trim fixing portion 13a at a point that extends linearly along the longitudinal direction of the trim fixing portion 13a.

As described above, the clip 13 with the edge portion 12a of the trim 12 fixed to the trim fixing portion 13a is fitted into the groove portion 11c provided in the hard pad 111 through the opening 11h. The clip 13 is fitted into the groove portion 11c by the operator by hand without using any special tools, so that the bottom end 13c of the clip 13 faces the groove bottom 11i.

When the base portion 13b and the pressing portion 13d of the clip 13 are pressed into the groove portion 11c, a part of the base portion 13b and the pressing portion 13d of the clip 13 come into contact with the side wall surfaces 11f, 11g of the groove portion 11c. Then, the pressing portion 13d, which receives a reaction force from the side wall surface (first side wall surface) 11f, bends in the X direction (the direction toward the side wall surface (second side wall surface) 11g). Note that in the clip 13, the base portion 13b also bends slightly, but it is mainly the pressing portion 13d that bends due to the difference in thickness between the base portion 13b and the pressing portion 13d and the formation of the recessed portion 13f.

As shown in Figure 4, when the bottom end 13c of the clip 13 reaches the vicinity of the groove bottom 11i, the trim fixing portion 13a of the clip 13 abuts or approaches the back surface 11b of the cushion pad 11 (the outer surface of the hard pad 111). At this time, the point P13d of the pressing portion 13d of the clip 13 and its surrounding portion (the portion indicated by arrow C) fit into the recessed portion 11d (the portion indicated by arrow D) provided on the side wall surface 11f of the groove portion 11c.

The clip 13 is made of polypropylene, which is harder than the hard pad 111 made of foam beads, so that the return portion 13g (the portion indicated by the arrow E) of the clip 13 engages with the side wall surface (second side wall surface) 11g near the groove bottom 11i. More specifically, the return portion 13g penetrates outward from the side wall surface 11g until the base portion 13b abuts against or comes close to the side wall surface 11g.

When the base portion 13b and the pressing portion 13d of the clip 13 are pressed into the state shown in FIG. 4, a pressing force acts from the pressing portion 13d to the side wall surface 11f, and a pressing force acts from the base portion 13b to the side wall surface 11g. This fixes the trim 12 to the cushion pad 11.

In the seat 1 according to this embodiment, the trim 12 can be fixed to the cushion pad 11 by the simple operation of pushing the base portion 13b and the pressing portion 13d of the clip 13, in which the edge portion 12a of the trim 12 has been fixed to the trim fixing portion 13a in advance, into the groove portion 11c of the cushion pad 11. Therefore, in the seat 1, there is no need to use a heavy tool such as a hook ringer when fixing the trim 12 to the cushion pad 11, and the fixing operation can be performed with high efficiency.

In addition, in the sheet 1, the pressing portion 13d of the clip 13 is formed to be flexible, so when inserting the base portion 13b and the pressing portion 13d into the groove portion 11c, no greater force is required than when a non-flexible clip is pushed into the groove portion.

5. Removal of Clip 13 from Groove 11c (1) First Removal Method A first removal method for removing the clip 13 from the groove 11c in order to remove the trim 12 from the cushion pad 11 will be described with reference to FIG.

First, as shown in FIG. 8(a), the worker inserts his thumb or the like into the recess 11k provided between the groove 11c and the flexible groove 11j of the hard pad 111, and lifts the trim fixing portion 13a away from the outer surface of the hard pad 111. This allows the pressing portion 13d of the clip 13 to be separated from the recess 11d provided in the side wall surface 11f, as shown by the arrow F.

Next, as shown in FIG. 8(b), the operator inserts a finger into the recess 11k and moves it in the X direction, thereby bending the area between the groove 11c and the flexible groove 11j in the hard pad 111 as shown by the arrow I.

This operation causes the pressing portion 13d of the clip 13 to bend as shown by the arrow F. This allows the pressing portion 13d of the clip 13 to be further separated from the recessed portion 11d provided in the side wall surface 11f.

In this embodiment, by performing the above operations, the clip 13 can be easily removed from the cushion pad 11, and the trim 12 can be easily reupholstered, etc.

(2) Second Removal Method A second method for removing the clip 13 from the groove 11c in order to remove the trim 12 from the cushion pad 11 will be described with reference to FIG.

First, as shown in FIG. 9(a), the worker inserts the thumbs of both hands into the recess 11k provided between the groove 11c of the hard pad 111 and the flexible groove 11j, and abuts the thumbs against the end 13k of the trim fixing portion 13a. Then, the worker abuts the remaining fingers of both hands against the corner 13l.

Next, as shown in FIG. 9(b), the operator firmly grips the clip 13 with the fingers of both hands and pulls both hands toward him/her as indicated by arrow J. As a result, the area between the groove 11c and the flexible groove 11j in the hard pad 111 to which pressure is applied from the pressing portion 13d of the clip 13 is deflected as indicated by arrow K. As the hard pad 111 deflects, a space is created between the return portion 13g of the clip 13 and the side wall surface 11g (part indicated by arrow L).

Even if the second removal method is used, the clip 13 can be easily removed from the cushion pad 11 by performing the above operations, and the trim 12 can be easily reupholstered, etc.

[Modification]
In the above embodiment, the seat 1 applied to the rear seat of an automobile is used as an example, but the present invention is not limited thereto. For example, the present invention can be applied to a seat applied to a front seat, a seat used in a room, etc.

In addition, in the above embodiment, the seat cushion 10 that supports the buttocks of a seated person is used as an example, but the present invention can also be applied to a seat back.

In the above embodiment, as shown in FIG. 5, an elongated clip 13 is used that fits the opening 11h of the groove 11c, but the present invention does not limit the shape of the clip to an elongated shape. However, from the viewpoint of suppressing the occurrence of wrinkles in the trim 12, it is preferable to use an elongated clip as in the above embodiment and fix the trim 12 linearly to the trim fixing portion 13a.

In the above embodiment, the base portion 13b of the clip 13 is flat, but the present invention can also employ a base portion having a curved surface.

In the above embodiment, the pressing portion 13d of the clip 13 has one end 13i connected to the base portion 13b and the other end 13h as a free end. However, the present invention can also have a structure in which the pressing portion 13d is connected to the base portion at the trim fixing portion side and the end on the groove bottom side is a free end, or a structure in which the pressing portion 13d is connected to the base portion at the midpoint in the groove depth direction and both the end on the groove bottom side and the end on the opening side are free ends.

In the above embodiment, the clip 13 has a structure in which the trim fixing portion 13a, the base portion 13b, and the pressing portion 13d are integrally molded, but the present invention may also involve joining some of the portions as separate parts to other portions.

In the above embodiment, the other end 13h of the pressing portion 13d of the clip 13 is formed with a curved surface, but the present invention is not limited to this. It may be rectangular in side view. However, if the other end 13h of the pressing portion 13d is formed with a curved surface as in the above embodiment, even if an attempt is made to pull out the clip 13 pressed into the groove portion 11c, it is less likely to get caught on the side wall surface 11f of the groove portion 11c, and it is less likely to scrape the side wall surface 11f.

In the above embodiment, only one return portion 13g is provided on the base portion 13b of the clip 13, but in the present invention, it is also possible to provide multiple return portions. In addition, the return portion can be provided not only in a position close to the bottom end 13c of the base portion 13b, but also in the middle part of the base portion in the Z direction, etc.

In the above embodiment, the constituent materials and dimensions of the cushion pad 11 and clip 13 are shown as examples, but the present invention allows the constituent materials and dimensions to be changed as appropriate depending on the size and design of the seat.

In the above embodiment, the front surface 11a of the cushion pad 11 is the support area, and the back surface 11b is the other area, but the present invention does not limit the area where the groove is provided to the back surface. For example, the groove can be provided on the lower part of the front surface or on the rear surface.

In the above embodiment, the clip 13 is inserted into the groove 11c, but the present invention may also insert a clip of a corresponding shape into a hole having a circular or rectangular opening in a plan view.

In the above embodiment, the flexible groove 11j and the recess 11k are provided in the hard pad 111, but in the present invention, the same effect can be obtained even if the flexible groove and the recess are provided in the soft pad.

In the above embodiment, the hard pad 111 is provided with a recess 11k and a flexible groove 11j to facilitate removal of the clip 13 from the cushion pad 11, but the present invention may be modified to provide only one of them. Even in this case, it is possible to facilitate removal of the clip 13.

1 seat 10 seat cushion 11 cushion pad 11c groove portion (hole portion, first groove portion)
11d recessed portion 11f side wall surface (first side wall surface)
11g Side wall surface (second side wall surface)
11j Flexible groove (second groove)
11k recess 12 trim 13 clip 13a trim fixing portion 13b base portion 13d pressing portion 13g return portion 111 hard pad 112 soft pad

Claims (14)

A cushion pad having a support area for supporting a seated person and another area other than the support area and having a hole in a thickness direction;
a trim having a covering region that covers the support region of the cushion pad and an edge portion disposed in the vicinity of the hole;
a clip to which the edge portion of the trim is fixed and which is inserted into the hole to fix the trim and the cushion pad;
Equipped with
The clip comprises:
a trim fixing portion to which the edge portion of the trim is fixed;
a base portion having a flat plate shape, connected to the trim fixing portion, and inserted into the hole of the cushion pad;
a pressing portion having one end connected to the base portion and the other end being a free end, the pressing portion being inserted into the hole portion together with the base portion in a state of being aligned with the base portion, and the pressing portion having flexibility;
having
When the pressing portion is inserted into the hole together with the base portion, the pressing portion has one end continuous with a bottom end on the bottom side of the hole in the base portion and the other end disposed on the opening side of the hole, and has a first curved portion between the one end and the other end in the depth direction of the hole, the first curved portion being curved so as to move away from the base portion as it approaches the opening side of the hole from the one end, and a second curved portion being curved so as to move closer to the base portion as it approaches the opening side of the hole, and the portion of the first curved portion closer to the opening side of the hole is deformed so as to bend toward the base portion relative to the one end, thereby applying an outward pressing force to a first side wall surface of the hole with which the pressing portion abuts,
The base portion has a recessed portion in the vicinity of the bottom end of the base portion, the recessed portion being thinner than other portions of the base portion.
Sheet. A cushion pad having a support area for supporting a seated person and another area other than the support area and having a hole in a thickness direction;
a trim having a covering region that covers the support region of the cushion pad and an edge portion disposed in the vicinity of the hole;
a clip to which the edge portion of the trim is fixed and which is inserted into the hole to fix the trim and the cushion pad;
Equipped with
The clip comprises:
a trim fixing portion to which the edge portion of the trim is fixed;
a base portion having a flat plate shape, connected to the trim fixing portion, and inserted into the hole of the cushion pad;
a pressing portion having one end connected to the base portion and the other end being a free end, the pressing portion being inserted into the hole portion together with the base portion in a state of being aligned with the base portion, and the pressing portion having flexibility;
having
When the pressing portion is inserted into the hole together with the base portion, the pressing portion has one end continuous with a bottom end on the bottom side of the hole in the base portion and the other end disposed on the opening side of the hole, and has a first curved portion between the one end and the other end in the depth direction of the hole, the first curved portion being curved so as to move away from the base portion as it approaches the opening side of the hole from the one end, and a second curved portion being curved so as to move closer to the base portion as it approaches the opening side of the hole, and the portion of the first curved portion closer to the opening side of the hole is deformed so as to bend toward the base portion relative to the one end, thereby applying an outward pressing force to a first side wall surface of the hole with which the pressing portion abuts,
the first side wall surface of the hole portion has a recessed portion that is recessed outward from the hole portion and into which a portion of the pressing portion that is furthest from the base portion fits;
Sheet. A cushion pad having a support area for supporting a seated person and another area other than the support area and having a hole in a thickness direction;
a trim having a covering region that covers the support region of the cushion pad and an edge portion disposed in the vicinity of the hole;
a clip to which the edge portion of the trim is fixed and which is inserted into the hole to fix the trim and the cushion pad;
Equipped with
The clip comprises:
a trim fixing portion to which the edge portion of the trim is fixed;
a base portion having a flat plate shape, connected to the trim fixing portion, and inserted into the hole of the cushion pad;
a pressing portion having one end connected to the base portion and the other end being a free end, the pressing portion being inserted into the hole portion together with the base portion in a state of being aligned with the base portion, and the pressing portion having flexibility;
having
When the pressing portion is inserted into the hole together with the base portion, the pressing portion has one end continuous with a bottom end on the bottom side of the hole in the base portion and the other end disposed on the opening side of the hole, and has a first curved portion between the one end and the other end in the depth direction of the hole, the first curved portion being curved so as to move away from the base portion as it approaches the opening side of the hole from the one end, and a second curved portion being curved so as to move closer to the base portion as it approaches the opening side of the hole, and the portion of the first curved portion closer to the opening side of the hole is deformed so as to bend toward the base portion relative to the one end, thereby applying an outward pressing force to a first side wall surface of the hole with which the pressing portion abuts,
The hole portion is a first groove portion having a groove shape,
The cushion pad has a second groove portion opened along the first groove portion,
A region between the first groove portion and the second groove portion in the cushion pad has flexibility.
Sheet. The sheet according to claim 2 or 3 ,
The base portion has a recessed portion in the vicinity of the bottom end of the base portion, the recessed portion being thinner than other portions of the base portion.
Sheet. The sheet according to claim 1 or 3 ,
the first side wall surface of the hole portion has a recessed portion that is recessed outwardly from the hole portion and into which a portion of the pressing portion that is farthest from the base portion fits;
Sheet. The sheet according to claim 1 or 2 ,
The hole portion is a first groove portion having a groove shape,
The cushion pad has a second groove portion opened along the first groove portion,
A region between the first groove portion and the second groove portion in the cushion pad has flexibility.
Sheet. The sheet according to claim 1 ,
the first side wall surface of the hole portion has a recessed portion that is recessed outwardly from the hole portion and into which a portion of the pressing portion that is farthest from the base portion is fitted,
The hole portion is a first groove portion having a groove shape,
The cushion pad has a second groove portion opened along the first groove portion,
A region between the first groove portion and the second groove portion in the cushion pad has flexibility.
Sheet. The sheet according to claim 3, claim 6 or claim 7 ,
the trim fixing portion has a plate shape and extends along an outer surface of the cushion pad to a location between the first groove portion and the second groove portion,
The cushion pad has a recess that is recessed in a thickness direction of the cushion pad at an end side of the trim fixing portion in a direction from the first groove portion toward the second groove portion and in a region adjacent thereto.
Sheet. The sheet according to any one of claims 1 to 8 ,
The cushion pad has a relatively hard pad and a relatively soft pad laminated on the hard pad,
In the other region of the cushion pad, the hard pad is exposed to the outside,
The hole is provided in the hard pad.
Sheet. The sheet according to any one of claims 1 to 9 ,
The clip further includes a barb that protrudes toward an opposite side to the pressing portion in a thickness direction of the base portion and has a pointed tip,
a reaction force from the first side wall surface against the pressing force of the pressing portion, the tip of the return portion of the clip is pressed into a second side wall surface opposite to the first side wall surface, and the return portion is engaged with the second side wall surface.
Sheet. The sheet according to claim 10 ,
The return portion is provided near the bottom end of the base portion.
Sheet. The sheet according to any one of claims 1 to 11 ,
The thickness of the first curved portion and the second curved portion of the pressing portion is smaller than the thickness of the base portion.
Sheet. The sheet according to any one of claims 1 to 12 ,
When the base portion and the pressing portion are inserted into the hole portion, the orientation direction of the other end of the pressing portion is a direction toward an opening side of the hole portion and toward the base portion.
Sheet. The sheet according to any one of claims 1 to 13 ,
The hole portion is a groove portion having a groove shape,
The trim fixing portion has an elongated shape extending along the groove portion,
When the opening of the groove is viewed from the outside in a plan view, a fixing portion of the trim to the trim fixing portion extends linearly along a longitudinal direction of the trim fixing portion.
Sheet.

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