JP6817903B2 - Seat trim cover fixing structure - Google Patents

Description

The present invention relates to a seat trim cover fixing structure.

A seat having a structure in which a cushion body made of an effervescent molded body or the like is covered with a bag-shaped trim cover made of leather, synthetic leather, cloth or the like is used in vehicles and the like. Further, as a structure for fixing the trim cover over the seat, for example, on the back surface of the seat back of the seat, the terminals of the trim cover are connected to each other (for example, the lower end of the upper back surface of the trim cover and the upper end of the lower back surface of the trim cover). ) Is engaged using an engaging member such as a hook (see, for example, Patent Document 1 and Patent Document 2).

Further, as a vehicle seat, a seat with a built-in seat belt is used in which a webbing winding device (retractor) of the seat belt device is incorporated in the seat back or the base portion of the seat. In such a seat with a built-in seat belt, when a take-up device is built in the lower part of the back surface of the seat back, a guide groove (guide portion) that guides the webbing of the seat belt device from the take-up device to the shoulder of the seat back. In some cases, the guide groove is formed so as to cover the guide groove with a protector such as a resin member.

Japanese Unexamined Patent Publication No. 2001-025427 Japanese Unexamined Patent Publication No. 2003-245168

However, in a seat with a built-in seat belt as described above, since a step is generated on the back surface of the seat back by the protector, the terminals of the trim cover (for example, the lower end of the upper back surface and the upper end of the lower back surface of the trim cover) are fixed. At that time, there is a problem that the engagement portion tends to vary. That is, when fixing the trim cover on the back of the seat back, the position is not restricted because the protector creates a step and the engaging part is not linear, and if you try to fix it in such a state, the position regulation does not work (in other words, For example, the engaging member may be displaced from the intended position), the position of the engaging member may vary from product to product or from operator to operator, which may affect the appearance of the trim cover.

Therefore, the present invention can avoid a situation in which the position of the engaging member varies due to a step on the surface to be fixed when the engaging member is engaged and fixed by covering the trim cover. Trim cover is intended to provide a fixed structure.

The structure according to one aspect of the present invention is a fixing structure for fixing the trim cover over the seat.
The first cover part of the trim cover that covers a part of the seat,
A second cover of the trim cover that covers the rest of the seat,
With the first engaging portion provided on the first cover portion,
A second engaging portion provided on the second cover portion and engaging with the first engaging portion,
A cover member provided on a part of the seat and having a third engaging portion with which the first engaging portion engages,
With
It is said that the second engaging portion of the second cover portion and the third engaging portion of the cover member are arranged at a position where they are connected to each other.

In such a trim cover fixing structure, the second engaging portion of the second cover portion and the third engaging portion of the resin cover member are linearly connected to each other, and the surface to be fixed (the back surface of the seat back, etc.) ), It is difficult for a step to occur. As a result, it is possible to prevent the engaging member from being displaced from the intended position, and thus it is possible to prevent the position of the engaging member from being varied for each product or each operator. As a result, the appearance of the trim cover is not affected by the variation in the position of the engaging member, and the appearance quality of the trim cover is stable.

In the trim cover fixing structure of the above aspect, the seat may be a vehicle seat.

In the trim cover fixing structure of the above aspect, the seat may be a seat back.

In the trim cover fixing structure of the above aspect, the seat may be a vehicle seat with a built-in seat belt, and a webbing guide portion constituting the seat belt may be formed on the back surface of the seat back.

In the trim cover fixing structure of the above aspect, the cover member may be a member arranged in the guide portion and covering a part of the webbing of the seat belt.

In the trim cover fixing structure of the above aspect, the cover member may be a resin molded product.

In the trim cover fixing structure of the above aspect, the second engaging portion of the second cover portion may be divided by the cover member.

In the trim cover fixing structure of the above aspect, the lower cover member may be provided under the cover member.

In the trim cover fixing structure of the above aspect, the structure may be such that the first engaging portion of the first cover portion is sandwiched between the end portion of the lower cover member and the third engaging portion of the cover member.

In the trim cover fixing structure of the above aspect, a cross section in which the second engaging portion of the second cover portion is bent in the rearward direction of the seat and further bent vertically downward in a state of being engaged with the first engaging portion. It may be in shape.

In the trim cover fixing structure of the above aspect, protrusions that facilitate maintaining the engaged state may be formed on one or both of the first engaging portion and the second engaging portion.

According to the present invention, when the engaging member is engaged and fixed by covering the trim cover, it is possible to avoid a situation in which the position of the engaging member varies due to a step on the surface to be fixed. According to this, it is possible to suppress the influence on the appearance of the trim cover of the seat.

It is a perspective view of the vehicle seat with a built-in seat belt. It is a perspective view which shows the outline of the vehicle seat with a built-in seat belt together with an occupant. It is a perspective view from the rear of the vehicle seat with a built-in seat belt. It is a perspective view which shows the structure of the vehicle seat with a built-in seat belt near the lower part of a resin cover (cover member). It is a figure which shows the cross-sectional structure in the VV line of FIG. It is sectional drawing in the VI-VI line of FIG. It is a figure which shows the cross-sectional structure in the VI-VI line of FIG. It is an enlarged view of the part represented by the two-dot chain line of FIG.

Hereinafter, a preferred embodiment of the seat trim cover fixing structure according to the present invention will be described in detail with reference to the drawings. In the following, a case where the trim cover fixing structure 100 is applied to the vehicle seat 1 will be described as an example (see FIGS. 1 to 8).

The vehicle seat 1 includes a seat cushion 2 on which the occupant sits, a seat back 3 that supports the back surface of the occupant, a headrest 4, and a base portion 6, and further includes a built-in seat belt (hereinafter, in the present embodiment). A seatbelt device) 5 is provided (see FIGS. 1 to 3). The seat cushion 2 and the seat back 3 include cushion bodies 2C and 3C made of foam, respectively (see FIG. 4). A trim cover is put on the cushion body 2C of the seat cushion 2 and the cushion body 3C of the seat back 3, respectively. The seat back 3 is provided with a reclining mechanism for supporting the seat back 3 so as to be tiltable as needed. Further, inside the seat back 3, a seat back frame 7 for supporting the load of the occupant is provided (see FIG. 3 and the like).

In the seatbelt device 5, a take-up device (retractor) of a webbing 53 (not shown) is incorporated in the base portion 6 or the seat back 3, and constitutes a vehicle seat 1 with a built-in seatbelt. In addition to the webbing 53 and the take-up device, the vehicle seat 1 is provided with a buckle 51, a tongue 52, and a pretensioner 54 (see FIGS. 1 to 3). An opening 35 for pulling out the webbing 53 is provided on one of the shoulders of the seat back 3.

On the back surface of the seat back 3, a concave guide portion 36 forming a passage of the webbing 53 from the winding device to the opening 35 for the webbing drawer is formed. The guide portion 36 is fixed to the seat back frame 7 of the seat back 3, and substantially pin-shaped guides 71 and 72 for guiding the webbing 53 are provided in the passage of the webbing 53 (see FIGS. 6 and 7). .. Further, the guide portion 36 is provided with a resin cover 30 that covers the upper side of the guide portion 36 and a lower resin cover 40 that covers the lower side of the guide portion 36 (see FIGS. 3 and 4 and the like).

The resin cover 30 is attached to the seat back frame 7 together with the guide portion 36 of the seat back 3, and functions as a protector that covers the webbing 53 (see FIG. 3 and the like). The lower resin cover 40 is a cover that is attached to the seat back frame 7 together with the resin cover 30 by using a screw 73 or the like to cover the webbing 53 (see FIG. 4). The resin cover 30 and the lower resin cover 40 are integrated with the cushion body 3C to form a part of the outer shape of the seat back 3. The resin cover 30 and the lower resin cover 40 in this embodiment are examples of cover members attached to the guide portion 36 of the seat back 3, and cover members other than the resin molded product can also be adopted.

The trim cover is a cover that can be detachably put on each of the cushion body 2C of the seat cushion 2 and the cushion body 3C of the seat back 3. The trim cover 8 (see FIG. 4) of the seat back 3 has at least a front portion, a back portion, and side surface portions on both sides, and is integrated by sewing them in a bag shape. The seat back 3 is formed by covering the bag-shaped trim cover 8 over the cushion body 3C of the seat back 3 and the resin cover (cover member) 30 described above. Hereinafter, the trim cover 8 to be placed on the seat back 3 and the fixing structure 100 of the trim cover 8 will be described (see FIG. 6 and the like).

The trim cover 8 of the present embodiment that covers the seat back 3 has an upper back surface 10 that covers the back surface of the seat back 3 and a lower back surface 20 that covers the lower back surface of the seat back 3. The upper back surface 10 and the lower back surface 20 are fixed by the trim cover fixing structure 100 on the back surface of the seat back 3.

The lower back surface 20 of the trim cover 8 is, for example, a portion integrally or connected to the lower end of the trim cover 8 on the front side of the seat back 3 and extends to the back side, and the lower surface of the seat back 3 is covered. It may be provided so as to wrap around and reach the lower side of the back surface. In the present embodiment, it is referred to as "lower back surface" including the case of such an embodiment.

Further, the lower back surface 20 is configured to cover a portion of the surface of the seat back 3 that is different from the portion covered by the upper back surface 10. However, a part of the lower back surface 20 and a part of the upper back surface 10 may overlap.

The trim cover fixing structure 100 of the present embodiment is provided on a first engaging portion provided on, for example, a gusset portion on the lower end of the back upper portion 10 of the trim cover 8, and on a gusset portion on the upper end, for example, on the back lower portion 20 of the trim cover 8. Includes a second engaging portion provided. The first engaging portion and the second engaging portion engage with each other so that the upper back surface 10 and the lower back surface 20 of the trim cover 8 are attached and fixed at predetermined positions.

The specific configuration of the first engaging portion provided on the upper back surface 10 and the second engaging portion provided on the lower back surface 20 is not particularly limited, but in the present embodiment, the hook having an I-shaped cross section is used. A first engaging portion composed of 11 (hereinafter, also referred to as an I hook) and a second engagement portion composed of a hook having a J-shaped cross section (hereinafter, also referred to as a J hook) 22 provided on the lower back surface 20. The joint part is adopted.

The I-hook 11 is configured by attaching a thin resin plate-shaped member having a rectangular cross section to the lower end of the upper back surface 10 (not only the terminal but also near the terminal) by, for example, suturing (FIG. 8). Etc.).

The J-hook 22 is a resin member having a bent cross-sectional shape such as a fishing hook at the upper end of the lower back surface 20 (including not only the terminal but also the vicinity thereof, except for the portion overlapping the resin cover 30). It is configured to be attached to, for example, by suturing (see FIG. 8 and the like). The J-hook 22 has a shape that bends in the rearward direction of the vehicle seat 1 (that is, in the rearward direction of the vehicle) and further bends vertically downward. Inside the tip of the J hook 22, a protrusion 22f is formed to prevent the hook from being disengaged from the I hook 11 and to easily maintain the engaged state (see FIG. 5). A similar protrusion 11f may be formed on the surface of the I hook 11 on the J hook 22 side (see FIGS. 5, 7, and 8).

In order to engage the I hook 11 and the J hook 22, the portion of the lower end of the upper back surface 10 provided with the I hook 11 is folded back toward the side (inside) of the seat back 3, and the folded portion is folded back toward the J hook 22. Insert it inside the bag (see Fig. 5 etc.). Then, the upper back surface 10 and the lower back surface 20 are maintained in a state in which an appropriate tension is applied in the vertical direction (vertical direction). Further, due to this tension, the I hook 11 and the J hook 22 are maintained in an engaged state with each other. Further, the engagement state between the I hook 11 and the J hook 22 can be released by sliding and removing the I hook 11 and the J hook 22 in the direction opposite to the insertion state.

The lower back surface 20 is divided into left and right by the portion of the resin cover 30, and has a shape that does not overlap with the resin cover 30. Therefore, the J hook 22 extending in the left-right direction is also interrupted at the portion of the resin cover 30 (see FIG. 4 and the like). Here, in the present embodiment, the resin cover 30 is formed with a hook portion 33 as a third engaging portion, and a part of the I hook 11 can be folded and engaged (FIG. 6). Etc.).

The hook portion 33 is formed by integrally formed at the lower end of the resin cover 30, a stepped portion having a cross-sectional shape that protrudes rearward and is bent downward (see FIGS. 7, 8 and the like). The hook portion 33 is formed so as to be substantially aligned with the J hook 22 on the lower back surface 20 (see FIG. 4).

According to the trim cover fixing structure 100 provided with the hook portion 33 as described above that functions as the third engaging portion, the J hook 22 and the hook portion 33 are linearly connected without causing a step in the front-rear direction. Therefore, when fixing the upper back surface 10, variation is unlikely to occur for each product or each operator. That is, if the lower back surface 20 has a shape that completely overlaps the resin cover 30, the overlapping portion between the J hook portion and the resin cover 30 causes a step (waviness), and the engaging member at the time of fixing the trim cover. It may cause variations in the positions of (I hook 11, J hook 22). In this respect, according to the trim cover fixing structure 100 of the present embodiment in which the J hook 22 and the hook portion 33 are linearly connected without such a step (waviness), such a situation can be suppressed. As a result, wrinkles and distortion of the trim cover caused by deception of the positions of the engaging members (I hook 11, J hook 22) are suppressed, and it becomes easy to attach the trim cover so as to have a uniform surface. Quality is stable.

Further, in the present embodiment, the I hook 11 is sandwiched between the hook portion 33 of the resin cover 30 and the end portion 44 of the lower resin cover 40 (see FIG. 6 and the like). According to such a trim cover fixing structure 100, the movement of the I hook 11 in a state of being folded into the hook portion 33 can be restricted, and the catch of the I hook 11 can be prevented from coming off. Here, the configuration in which the I hook 11 is sandwiched between the resin cover 30 (hook portion 33) and the lower resin cover 40 (end 44) is shown, but this is only a preferable example. As long as the I hook 11 is engaged with the hook portion 33 of the resin cover 30, it does not have to be configured to be sandwiched between the end portions 44 of the lower resin cover 40.

The above-described embodiment is an example of a preferred embodiment of the present invention, but the present invention is not limited to this, and various modifications can be carried out without departing from the gist of the present invention. For example, in the above-described embodiment, an example in which the present invention is applied when a step may occur in the fixing structure of the trim cover on the back surface of the vehicle seat has been described, but this is only an example, and is a portion other than the back surface. Is also applicable.

Further, in the above-described embodiment, an example corresponding to a step that may occur when the resin cover 30 is provided in the vehicle seat 1 with a built-in seat belt has been shown, and this is an example of the cause of the step. Only. It is possible to apply the present invention to a sheet having a step in structure, not limited to the cause of the step.

Further, in the above-described embodiment, the example in which the present invention is applied to the seat back 3 of the vehicle seat 1 has been described, but it is also possible to apply the present invention to a portion other than the seat back 3 of the vehicle seat 1.

Further, in the above-described embodiment, the embodiment in which the I hook 11 is provided on the upper back surface 10 and the J hook 22 is provided on the lower back surface 20 constituting the trim cover 8 has been described, but this is also only a preferable example. For example, conversely, an engaging portion having a J-shaped cross section may be provided on the upper back surface 10 and an engaging portion having a rectangular cross section may be provided on the lower back surface 20. Alternatively, it is also possible to use an engaging member having a configuration other than the I hook and the J hook.

Further, in the above-described embodiment, the vehicle seat 1 used for automobiles and the like has been described as an example, but it goes without saying that the seat 1 for various vehicles other than the vehicle can also be applied.

The present invention is suitable for application to a fixing structure for fixing a trim cover over a seat.

1 ... Vehicle seat (seat), 3 ... Seat back, 5 ... Seat belt device (seat belt), 8 ... Trim cover, 10 ... Upper back (first cover), 11 ... I hook (first engagement) Joint part), 11f ... protrusion, 20 ... lower back surface (second cover part), 22 ... J hook (second engagement part), 22f ... protrusion, 30 ... resin cover (cover member), 33 ... Hook part (third engaging part), 36 ... guide part, 40 ... lower resin cover (lower cover member), 44 ... end part, 100 ... trim cover fixing structure

Claims (11)

In the fixing structure for fixing the trim cover over the seat,
A first cover portion of the trim cover that covers a part of the sheet, and
A second cover portion of the trim cover that covers the other part of the sheet, and
With the first engaging portion provided on the first cover portion,
A second engaging portion provided on the second cover portion and engaged with the first engaging portion, and
A cover member provided on a part of the sheet and having a third engaging portion with which the first engaging portion engages.
With
A seat trim cover fixing structure, which is arranged at a position where the second engaging portion of the second cover portion and the third engaging portion of the cover member are connected to each other. The seat trim cover fixing structure according to claim 1, wherein the seat is a vehicle seat. The seat trim cover fixing structure according to claim 2, wherein the seat is a seat back. The seat trim cover fixing structure according to claim 3, wherein the seat is a vehicle seat with a built-in seat belt, and a webbing guide portion constituting the seat belt is formed on the back surface of the seat back. The seat trim cover fixing structure according to claim 4, wherein the cover member is a member arranged in the guide portion and covers a part of the webbing of the seat belt. The sheet trim cover fixing structure according to claim 5, wherein the cover member is a resin molded product. The seat trim cover fixing structure according to claim 6, wherein the second engaging portion of the second cover portion is divided by the cover member. The seat trim cover fixing structure according to claim 7, wherein a lower cover member is provided on the lower side of the cover member. The trim of the seat according to claim 8, which has a structure in which the first engaging portion of the first cover portion is sandwiched between the end portion of the lower cover member and the third engaging portion of the cover member. Cover fixing structure. A claim having a cross-sectional shape in which the second engaging portion of the second cover portion bends in the rearward direction of the seat and further bends vertically downward in a state of being engaged with the first engaging portion. The seat trim cover fixing structure according to any one of Items 1 to 9. The invention according to any one of claims 1 to 10, wherein a protrusion is formed on one or both of the first engaging portion and the second engaging portion so as to easily maintain the engaged state. Seat trim cover fixing structure.