JP2019010175A - Seat trim cover fixing structure - Google Patents

Abstract

To avoid a situation that a variation occurs in a position of an engagement member resulting from a step on a fixing face when fixing a trim cover by making an engagement member engaged with the trim cover by covering the engagement member with the trim cover.SOLUTION: A fixing structure 100 for fixing a trim cover which is covered on a seat comprises: a first cover 10 of a trim cover 8 for covering one portion of a seat; a second cover part 20 of the trim cover 8 for covering the other portion of the seat; and a cover member 30 having a first engagement part 11 arranged at the first cover part 10, a second engagement part 22 arranged at the second cover part 20 and engaged with the first engagement part 11, and a third engagement part 33 arranged at a part of the seat and engaged with the first engagement part 11. The second engagement part 22 of the second cover part 20 and the third engagement part 33 of the cover member 30 are arranged in continuous positions.SELECTED DRAWING: Figure 4

Description

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

  2. Description of the Related Art A seat having a configuration in which a cushion formed by a foamed molded body is covered with a trim cover formed in a bag shape with leather, synthetic leather, cloth, or the like is used in a vehicle or the like. In addition, as a structure for fixing the trim cover over the seat, for example, at the back of the seat back of the seat, the trim cover terminals are connected to each other (for example, the lower end of the upper back of the trim cover and the upper end of the lower back of the trim cover). ) Is engaged using an engaging member such as a hook (see, for example, Patent Document 1 and Patent Document 2).

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

JP 2001-025427 A JP 2003-245168 A

  However, in a seat with a built-in seat belt as described above, a step is generated on the back surface of the seat back by the protector, so the terminals of the trim cover (for example, the lower end of the upper back of the trim cover and the upper end of the lower back of the trim cover) are fixed. In this case, there is a problem in that the engagement portion is likely to vary. That is, when fixing the trim cover on the back of the seat back, the engaging portion is not linear because the step is generated by the protector, and if it is attempted to fix in such a state, the position restriction does not work (in other words, In other words, the engaging member is displaced from the intended position), and the position of the engaging member varies from product to product or from worker to worker, which in turn 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 in the fixing surface when the engaging member is engaged and fixed by covering the trim cover. An object of the present invention is to provide a trim cover fixing structure.

The structure according to one aspect of the present invention is a fixing structure for fixing a trim cover placed on a seat.
A first cover portion of a trim cover that covers a portion of the seat;
A second cover part of the trim cover covering the other part of the seat;
A first engagement portion provided in the first cover portion;
A second engagement portion provided on the second cover portion and engaged with the first engagement portion;
A cover member provided on a part of the sheet and having a third engagement portion with which the first engagement portion engages;
With
The second engagement portion of the second cover portion and the third engagement portion of the cover member are arranged at a continuous position.

  In such a trim cover fixing structure, the second engagement portion of the second cover portion and the third engagement portion of the resin cover member are connected in a straight line, and are fixed surfaces (such as the back surface of the seat back). ) Is unlikely to occur. Thereby, since it is suppressed that an engaging member shifts | deviates from the position as intended, it will become possible to suppress that the position of an engaging member varies for every product or every operator. As a result, the appearance of the trim cover is not affected due to the variation in the position of the engaging member, and the appearance quality of the trim cover is stabilized.

  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 according to the above aspect, the seat may be a seat for a vehicle 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 that is disposed in the guide portion and covers 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, a lower cover member may be provided below the cover member.

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

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

  In the trim cover fixing structure according to the above aspect, a protrusion that makes it easy to maintain 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 engagement member is engaged and fixed by covering the trim cover, it is possible to avoid a situation in which the position of the engagement member varies due to a step in the surface to be fixed. According to this, it is possible to suppress the appearance of the trim cover of the seat from being affected.

It is a perspective view of a vehicle seat with a built-in seat belt. 1 is a perspective view showing an outline of a vehicle seat with a built-in seat belt together with an occupant. It is a perspective view from the back of a vehicle seat with a built-in seat belt. It is a perspective view which shows the structure of the resin cover (cover member) lower part vicinity of the vehicle seat of a seat belt built-in type. It is a figure which shows the cross-sectional structure in the VV line | wire of FIG. It is sectional drawing in the VI-VI line of FIG. It is a figure which shows the cross-section in the VI-VI line of FIG. It is an enlarged view of the part represented by the dashed-two dotted line of FIG.

  DESCRIPTION OF EMBODIMENTS Hereinafter, a preferred embodiment of a seat trim cover fixing structure according to the present invention will be described in detail with reference to the drawings. Below, the 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 an occupant is seated, a seat back 3 that supports the back of the occupant, a headrest 4, and a base portion 6, and a built-in seat belt (hereinafter referred to as the present embodiment). 5 (refer to FIG. 1 to FIG. 3). The seat cushion 2 and the seat back 3 include cushion bodies 2C and 3C made of foam, respectively (see FIG. 4). Trim covers are placed 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 in a tiltable manner as required. In addition, a seat back frame 7 that supports a passenger's load is provided inside the seat back 3 (see FIG. 3 and the like).

  The seat belt device 5 includes a winding device (retractor) (not shown) of the webbing 53 incorporated in the base portion 6 or the seat back 3, and constitutes a vehicle seat 1 with a built-in seat belt. The vehicle seat 1 is provided with a buckle 51, a tongue 52, and a pretensioner 54 in addition to the webbing 53 and the winding device (see FIGS. 1 to 3). An opening 35 for drawing out the webbing 53 is provided on one of the shoulder portions of the seat back 3.

  On the back surface of the seat back 3, a concave guide portion 36 that forms a passage of the webbing 53 from the winding device to the webbing drawer opening 35 is formed. The guide part 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). . 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).

  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 using a screw 73 or the like and covers the webbing 53 (see FIG. 4). The resin cover 30 and the lower resin cover 40 are integrated with the cushion body 3 </ b> C and form a part of the outer shape of the seat back 3. In addition, the resin cover 30 and the lower resin cover 40 in the present embodiment are an example of a cover member attached to the guide portion 36 of the seat back 3, and a cover member other than a resin molded product may be employed.

  The trim cover is a cover that is detachably placed 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 surface portion, a back surface portion, and side surfaces on both sides, and is integrated by sewing them into a bag shape. The seat back 3 is formed by covering the bag-like trim cover 8 so as to cover the cushion body 3 </ b> C of the seat back 3 and the above-described resin cover (cover member) 30. Hereinafter, the trim cover 8 that covers 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 this embodiment that covers the seat back 3 includes a back upper portion 10 that covers the back of the seat back 3 and a back lower portion 20 that covers the lower back 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 that is integrated with or connected to the lower end of the trim cover 8 on the front surface side of the seat back 3 and extends to the back surface side. It may be provided so as to go around and reach the lower side of the back. In the present embodiment, such a mode is also referred to as “lower rear portion”.

  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 according to the present embodiment includes a first engagement portion provided at, for example, a lower gusset portion of the rear upper portion 10 of the trim cover 8, and an upper gusset portion, for example, of the lower lower portion 20 of the trim cover 8. A second engaging portion provided. The first engagement portion and the second engagement portion are engaged with each other, and the rear upper portion 10 and the rear lower portion 20 of the trim cover 8 are attached and fixed at predetermined positions.

  The specific configuration of the first engaging portion provided in the back upper portion 10 and the second engaging portion provided in the back lower portion 20 is not particularly limited, but in this embodiment, the hook having an I-shaped cross section (Hereinafter also referred to as “I hook”) 11 and a second engagement composed of a J-shaped cross-section hook (hereinafter also referred to as “J hook”) 22 provided in the lower back surface 20. The joint 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 the vicinity of the terminal) by, for example, sewing (FIG. 8). Etc.).

  The J hook 22 includes a resin member having a cross-sectional shape bent like a fishing hook, including the upper end of the lower back surface 20 (not only the terminal but also the vicinity thereof, except for the portion overlapping the resin cover 30). For example, it is comprised by attaching by sewing (refer FIG. 8 etc.). The J hook 22 has a shape that bends in the rearward direction of the vehicle seat 1 (that is, the rearward direction of the vehicle) and further bends vertically downward. A protrusion 22f is formed on the inner side of the tip of the J hook 22 so as to make it difficult to disengage from the I hook 11 and 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 provided with the I hook 11 at the lower end of the rear upper portion 10 is folded back toward the side of the seat back 3 (inside), and the folded portion is the J hook 22. (See Fig. 5 etc.) If it does so, the back upper part 10 and the back lower part 20 will be maintained in the state in which moderate tension | tensile_strength acted in the up-down direction (vertical direction). Further, this tension keeps the I hook 11 and the J hook 22 engaged with each other. Moreover, the I hook 11 and the J hook 22 can be released by sliding them in the opposite direction of insertion and removing them.

  The back lower portion 20 is divided into left and right at the resin cover 30 and has a shape that does not overlap the resin cover 30. For this reason, 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 serving as a third engagement portion, and can be engaged by folding a part of the I hook 11 (FIG. 6). Etc.).

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

  According to the trim cover fixing structure 100 including the hook portion 33 as described above that functions as the third engaging portion, the J hook 22 and the hook portion 33 are connected in a straight line without causing any step in the front-rear direction. For this reason, when fixing the rear upper portion 10, variations between products or workers are unlikely to occur. That is, if the rear lower portion 20 has a shape that entirely overlaps the resin cover 30, the overlapping portion between the J hook portion and the resin cover 30 causes a step (swell), and the engagement member when the trim cover is fixed. This may cause variations in the positions of (I hook 11 and 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 connected in a straight line without such a step (swell), such a situation can be suppressed. As a result, trimming and distortion of the trim cover due to the position of the engaging members (I hook 11 and J hook 22) can be suppressed, and the trim cover can be easily mounted so as to have a uniform surface. The quality of the stable.

  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 made difficult to come off. Here, a configuration is shown in which the I hook 11 is sandwiched between the resin cover 30 (the hook portion 33) and the lower resin cover 40 (the end portion 44), but this is only a preferred example. As long as the I hook 11 is engaged with the hook portion 33 of the resin cover 30, the I hook 11 may not 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 is not limited thereto, and various modifications can be made without departing from the scope of the present invention. For example, in the above-described embodiment, the example in which the present invention is applied when a step may be generated in the trim cover fixing structure on the back surface of the vehicle seat is merely an example, and it is a place other than the back surface. Is also applicable.

  Further, in the above-described embodiment, the example corresponding to the level difference that may occur when the resin cover 30 is provided in the vehicle seat 1 with a built-in seat belt is shown. This is an example of the cause of the level difference. Only. The present invention can be applied not only to the cause of the step but also to a sheet having a step in structure.

  Moreover, although the above-mentioned embodiment demonstrated the example which applied this invention to the seat back 3 of the vehicle seat 1, it is also possible to apply to parts other than the seat back 3 of the vehicle seat 1. FIG.

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

  In the above-described embodiment, the vehicle seat 1 used for an automobile or the like has been described as an example. However, it is needless to say that the present invention can be applied to seats for various vehicles other than the vehicle.

  The present invention is preferably applied to a fixing structure for fixing a trim cover placed on a seat.

DESCRIPTION OF SYMBOLS 1 ... Vehicle seat (seat), 3 ... Seat back, 5 ... Seat belt apparatus (seat belt), 8 ... Trim cover, 10 ... Back upper part (1st cover part), 11 ... I hook (1st engagement) , 11f... Projection, 20... Lower back (second cover part), 22... J hook (second engagement part), 22f... Projection, 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 placed on the seat,
A first cover portion of the trim cover that covers a portion of the sheet;
A second cover portion of the trim cover covering the other part of the sheet;
A first engagement portion provided in the first cover portion;
A second engagement portion provided on the second cover portion and engaged with the first engagement portion;
A cover member provided on a part of the sheet and having a third engagement portion with which the first engagement portion engages;
With
A trim cover fixing structure for a seat, wherein the second engagement portion of the second cover portion and the third engagement portion of the cover member are arranged at a continuous position.   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 seat for a vehicle with a built-in seat belt, and a guide portion of a webbing constituting the seat belt is formed on a back surface of the seat back.   The seat trim cover fixing structure according to claim 4, wherein the cover member is a member that is disposed on the guide portion and covers a part of the webbing of the seat belt.   The seat 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 engagement 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 below the cover member.   The seat trim according to claim 8, wherein the first engagement portion of the first cover portion is sandwiched between an end portion of the lower cover member and the third engagement portion of the cover member. Cover fixing structure.   The second engagement portion of the second cover portion has a cross-sectional shape that bends in the rearward direction of the seat and further bends vertically downward in a state where the second engagement portion is engaged with the first engagement portion. Item 10. The seat trim cover fixing structure according to any one of Items 1 to 9.   The protrusion part which makes it easy to maintain an engagement state is formed in one or both of the said 1st engagement part and the said 2nd engagement part. Seat trim cover fixing structure.