JP2023158510A - Seat structure for vehicle - Google Patents

Abstract

To obtain a seat structure for a vehicle, that allows a fixing member to be stably attached to a seat frame, while reducing a burden on an operator, and further, that allows reduction in a number of components.SOLUTION: A vehicular seat comprises: a locking hole 46 formed in a lower panel 38 constituting a seat skeleton; and a fixing member 60 to be fitted to the locking hole 46. The fixing member 60 includes: a base part 62 to which a first skin 50 is fixed; and a pair of locking parts 64 that extend from one end to the other end of the base part so as to be mutually opposed, and that are locked at an edge of the locking hole 46. A part of a harness 56 wired along the lower panel 38 across the locking hole 46 is held inside a storage space S formed by the base part 62 and the pair of locking parts 64.SELECTED DRAWING: Figure 3

Description

The present invention relates to a vehicle seat structure.

Patent Document 1 listed below discloses a vehicle seat structure having a base frame having a seat portion, a locking hole (locking hole) provided on the side surface of the base frame, and a clip attached to the locking hole. has been done. In this seat structure, the seat portion of the vehicle seat is covered with the sheet material by fixing clips with locking protrusions that lock onto the upper and lower ends of the locking hole to the tip of the sheet material of the seat portion. There is.

Japanese Patent Application Publication No. 9-020164

When the locking protrusion of the clip is locked to the locking hole as in Patent Document 1, if the tension from the seat skin is no longer applied to the clip, it is assumed that the clip will wobble and become unstable. On the other hand, if the tension of the seat skin is increased in order to stabilize the clip, the resistance when attaching the clip also increases, resulting in an increased burden on the operator.

In addition, vehicle seats are equipped with various electrical components such as airbag devices and electric recliners. Harnesses connected to these electrical components are fixed to the seat frame using special clips or the like. In such a case, fixing members for the seat skin and fixing members for the harness are attached to the seat frame in a mixed manner, resulting in an increase in the number of parts.

In consideration of the above facts, the present invention aims to provide a vehicle seat structure that can stably attach a fixing member to a seat frame while reducing the burden on the operator, and further reduces the number of parts. purpose.

A vehicle seat structure according to a first aspect includes a locking hole formed in a seat frame constituting a seat skeleton, and a fixing member attached to the locking hole, and the fixing member has a seat surface that is It has a base to be fixed, and a pair of locking parts that extend from one end and the other end of the base so as to face each other and are locked to the edge of the locking hole, and the locking part straddles the locking hole. A portion of the harness arranged along the seat frame is held within a storage space formed by the base and the pair of locking parts.

In the vehicle seat structure of the first aspect, a locking hole is formed in a seat frame that constitutes a seat skeleton, and a fixing member to which a seat skin is fixed is attached to the locking hole. This fixing member has a base portion to which the seat skin is fixed, and a pair of locking portions that extend from one end and the other end of the base to face each other and are locked to the edge of the locking hole. . Thereby, the seat skin is attached to the seat frame of the vehicle seat via the fixing member.

Here, if the tension from the seat skin ceases to work, the amount of insertion of the fixing member into the locking hole cannot be regulated, and the fixing member tends to wobble. On the other hand, in this aspect, a part of the harness arranged along the seat frame is held within the accommodation space formed by the base and the pair of locking parts, so the harness allows the locking hole to be opened. It is possible to restrict the amount of insertion of the fixing member into the hole. Thereby, the fixing member can be stably attached to the seat frame without relying on the tension of the seat skin.

Furthermore, the fixing member can attach the harness to the seat frame by holding the harness within the accommodation space. Therefore, since the seat skin and the harness can be attached to the seat frame via a common fixing member, the number of parts can be reduced.

In the vehicle seat structure according to a second aspect, in the first aspect, the seat frame has a harness support portion integrally formed so as to span the locking hole, and the seat frame has a harness support portion integrally formed so as to span the locking hole. The harness to be accommodated is held between the harness support section and the base section.

In the vehicle seat structure of the second aspect, the seat frame has a harness support portion that is integrally formed so as to span the locking hole. As a result, the harness stored in the housing space is held between the harness support part and the base, so that when the fixing member is inserted into the locking hole, the harness is held inside the locking hole. Deformation can be suppressed. As a result, the regulation of the fixing member is strengthened, and the attachment position can be further stabilized.

In the vehicle seat structure of a third aspect, in the first aspect or the second aspect, the seat frame is arranged on both sides of the harness routed across the locking hole, and It has a pair of harness regulating parts that are integrally formed so as to protrude toward the vehicle, and the displacement of the harness with respect to the seat frame is regulated by the pair of harness regulating parts.

In the vehicle seat structure of the third aspect, the seat frame includes a pair of integrally formed harnesses arranged on both sides of the harness extending across the locking hole, and protruding toward the fixing member. It has a harness regulation department. As a result, the harness can be temporarily fastened to the seat frame before the fixing member is inserted into the locking hole, since displacement of the harness with respect to the seat frame is regulated by the pair of harness regulating parts. Thereby, the fixing member can be attached without causing the harness to fall off the seat frame, and workability can be improved.

In the vehicle seat structure of the fourth aspect, in the third aspect, the pair of harness regulating parts are integrally formed with the harness supporting part.

In the vehicle seat structure of the fourth aspect, since the pair of harness regulating parts are integrally formed with the harness supporting part, the structure of the seat frame is simplified compared to the case where the harness supporting part and the harness regulating part are provided separately. can do.

As described above, in the vehicle seat structure according to the present invention, the fixing member can be stably attached to the seat frame while reducing the burden on the operator, and furthermore, the number of parts can be reduced.

FIG. 1 is a rear view of the vehicle seat according to the first embodiment, seen from the rear side, and shows an example of a seat frame included in the vehicle seat. FIG. 2 is a partial enlarged view showing a partially enlarged seat frame according to the first embodiment. (A) is a cross-sectional view taken along the line 3A-3A in FIG. 2, and (B) is a cross-sectional view taken along the line 3B-3B in FIG. (C) is a cross-sectional view taken along line 3C-3C in FIG. 2. FIG. 7 is a partially enlarged perspective view showing the main parts of a vehicle seat structure according to a second embodiment, and partially enlarging a seat frame. 5 is a cross-sectional view taken along line 5-5 in FIG. 4. FIG. FIG. 5 is a partially enlarged perspective view corresponding to FIG. 4 , showing a first modification of the harness support portion according to the second embodiment. FIG. 5 is a partially enlarged perspective view corresponding to FIG. 4 , showing a second modification of the harness support section according to the second embodiment.

[First embodiment]
Hereinafter, a vehicle seat 10 according to a first embodiment of the present invention will be described with reference to FIGS. 1 to 3. Note that some symbols may be omitted in each figure to make the drawings easier to read. Further, arrows FR, RH, and UP appropriately described in each figure indicate the front, right side, and upper side of the vehicle seat 10, respectively. Hereinafter, when the directions are simply referred to as front, rear, left, right, up and down, the directions with respect to the vehicle seat 10 are indicated unless otherwise specified.

(Overall overview)
As shown in FIG. 1, the vehicle seat 10 according to the present embodiment includes a seat cushion 12 on which a vehicle occupant sits, and a seat back 14 that supports the back of the occupant. This vehicle seat 10 includes a seat frame 20 having a cushion frame 22 that constitutes the frame of the seat cushion 12 and a back frame 32 that constitutes the frame of the seat back 14. The cushion frame 22 and the back frame 32 are configured by, for example, joining together members made of sheet metal, members made of metal pipes, and the like.

The cushion frame 22 has a substantially rectangular frame shape when viewed in the vertical direction. A pad (not shown) constituting a cushioning material is attached to the cushion frame 22, and the surface of the pad is covered with a skin (not shown).

The back frame 32 has a substantially rectangular frame shape when viewed in the front-rear direction. The back frame 32 includes a pair of left and right side frames 34, an upper frame 36 that connects the upper ends of the left and right side frames 34 in the left-right direction, and a lower panel 38 that connects the lower ends of the left and right side frames 34 in the left-right direction. have.

The left and right side frames 34 have a long plate shape with the vertical direction as the longitudinal direction and the left and right direction as the thickness direction. The upper frame 36 has a cylindrical shape with its axis extending in the left-right direction. The left and right side frames 34 are made of, for example, press-formed metal plates, and the upper frame 36 is made of, for example, a metal pipe material.

The lower panel 38 has a long plate shape with a longitudinal direction in the left-right direction and a thickness direction in the front-rear direction, and is made of, for example, a press-formed metal plate. An end portion of a first skin 50 that covers the lower end portion of the back frame 32 is fixed to the lower panel 38 via a fixing member 60 that will be described later. Further, the fixed end portion of the first skin 50 is covered with the lower end portion of the second skin 52 that covers the pad 44 (cushion material) attached to the back frame 32.

A rear end portion of the cushion frame 22 is rotatably connected to a lower end portion of the back frame 32 via a connecting shaft 42 extending in the seat width direction. Further, the lower end of the back frame 32 is arranged inward in the left-right direction with respect to the upper end of the left and right hinge brackets 30, and is connected to the upper end of the left and right hinge brackets 30 via a well-known reclining mechanism 40. connected. Thereby, the back frame 32 is connected to the cushion frame 22 so as to be reclinable (tiltable).

In this embodiment, an airbag device 54 is attached to a side frame 34 that forms the right side of the back frame 32. This airbag device 54 includes an inflator (gas generator) (not shown) and an initiator (ignition device) for activating the inflator, and a harness 56 connected to the initiator runs along the right side frame 34 and lower panel 38. and is pulled out to the left side of the back frame 32. A portion of the harness 56 is fixed to the lower panel 38 by being held by a fixing member 60, which will be described later.

(Main part of the present invention)
As described above, the end portion of the first skin 50 is fixed to the lower panel 38 that constitutes the back frame 32 via the fixing member 60. Further, a portion of the harness 56 arranged along the lower panel 38 is fixed to the lower panel 38 by being held by a fixing member 60.

As shown in FIG. 2, the lower panel 38 has a rectangular locking hole 46 formed through the plate in the thickness direction. The harness 56 is arranged along the longitudinal direction of the lower panel 38 so as to straddle the locking hole 46 . The fixing member 60 is attached to the lower panel 38 by being attached to the locking hole 46 so as to sandwich the harness 56 therebetween.

FIG. 3A shows a cross section of the fixing member 60 taken along the line 3A-3A shown in FIG. As shown in this figure, the fixing member 60 is configured as a clip-shaped member made of, for example, a resin material. Specifically, the fixing member 60 has a plate-shaped base 62 and a pair of locking parts 64 extending from one end and the other end of the base 62. Further, the base portion 62 and the pair of locking portions form an accommodation space S that holds the harness 56.

The base portion 62 is formed into a rectangular plate shape when viewed in the front-rear direction, and is disposed facing the lower panel 38. An end portion of the first skin 50 is fixed to the base 62 on a surface opposite to the surface facing the lower panel 38 . In one example of this embodiment, the end of the first skin 50 is fixed to the fixing member 60 by sewing together with the base 62 using an industrial sewing machine.

In this embodiment, the base 62 and the pair of locking parts 64 form a rectangular open cross section. Therefore, when sewing the first skin 50 to the base 62, the fixing member 60 is placed on the workbench of the sewing machine on which the first skin is placed in an upwardly open position, and the pair of locking parts 64 It is possible to sew by inserting a sewing machine presser foot inside. Therefore, the fixing member 60 and the first skin 50 can be sewn using a general industrial sewing machine.

The pair of locking portions 64 extend from one end and the other end of the base portion 62 toward the lower panel 38 so as to face each other. A claw portion 64A is provided at the tip of each locking portion 64 to be locked to the edges of the locking hole 46 (the upper and lower edges in FIG. 3A).

The pair of locking portions 64 are inserted into the locking holes 46 of the lower panel 38 with the harness 56 inserted into the accommodation space S. When the pair of locking portions 64 are inserted into the locking hole 46, when the claw portion 64A on the distal end side gets over the edge of the locking hole 46, the pair of locking portions 64 are elastically deformed in a direction toward each other. After the claw portions 64A get over the locking hole 46, the pair of locking portions 64 elastically return in the direction of separating from each other, and the tip side claw portion 64A touches the upper and lower edges of the locking hole 46. Attached to the edge. Here, when the operator tries to insert the fixing member 60 deeper into the lower panel 38 side, the base 62 of the fixing member 60 comes into contact with the harness 56 held in the accommodation space S, and the fixing member 60 in the insertion direction 60 movements are restricted. This configuration suppresses the wobbling of the fixing member 60 with respect to the locking hole 46, so that the fixing member 60 can be stably attached to the lower panel 38.

Here, as shown in FIGS. 2, 3(B) and 3(C), the lower panel 38 is fixed from one side and the other side in the width direction (vertical direction in FIG. 2 etc.) of the locking hole 46. It has a pair of harness regulating parts 66 extending toward the member 60. In one example of the present embodiment, the pair of harness regulating portions 66 are comprised of substantially L-shaped plate pieces extending from the upper and lower ends of the locking hole 46 . The pair of harness regulating portions 66 extend from the upper and lower ends of the locking hole 46 toward the inner side of the locking hole 46, and extend toward the fixing member 60 with tip portions 66A bent. The harness 56 is inserted between the pair of harness regulating portions 66, thereby regulating vertical displacement with respect to the lower panel 38. In this configuration, the harness 56 can be temporarily fastened to the lower panel 38 by inserting the harness 56 between the pair of harness regulating parts 66 before mounting the fixing member 60 in the locking hole 46. As a result, when the fixing member 60 is attached by the worker, even if the worker cannot see the locking part 64 of the fixing member 60 due to the first skin 50 fixed to the base 62, the worker may accidentally The harness can be held without falling off.

(action and effect)
As described above, in this embodiment, the locking hole 46 is formed in the lower panel 38 (seat frame 20) that constitutes the seat frame, and the locking hole 46 is provided with the first skin 50 (seat skin). A fixing member 60 to which is fixed is attached. This fixing member 60 includes a base 62 to which the first skin 50 is fixed, and a pair of locking portions 64 that extend from one end and the other end of the base 62 to face each other and are locked to the edge of the locking hole 46. It has . As a result, the first skin 50 is attached to the lower panel 38 via the fixing member 60.

Here, a portion of the harness 56 routed along the lower panel 38 is held within the accommodation space S formed by the base 62 and the pair of locking portions 64. In this configuration, the base 62 of the fixing member 60 comes into contact with the harness 56, and the amount of insertion of the fixing member 60 into the locking hole 46 can be restricted. Thereby, the fixing member 60 can be stably attached to the lower panel 38 without relying on the tension of the first skin 50.

Furthermore, the fixing member 60 can fix the harness 56 to the lower panel 38 by holding the harness 56 within the accommodation space S. Therefore, since the first skin 50 and the harness 56 can be attached to the lower panel 38 via the common fixing member 60, the number of parts can be reduced.

Further, a pair of harness regulating portions 66 are integrally formed on the lower panel 38. The pair of harness regulating portions 66 are arranged on both sides of the harness 56 arranged across the locking hole 46 and protrude toward the fixing member 60. Since the harness 56 is restricted from being displaced relative to the lower panel 38 by the pair of harness regulating portions 66, the harness 56 can be temporarily secured to the lower panel 38 before the fixing member 60 is inserted into the locking hole 46. Thereby, the fixing member 60 can be attached without causing the harness 56 to fall off the lower panel 38, and workability can be improved.

Furthermore, in this embodiment, since the fixing member 60 is disposed between the pair of harness regulating parts 66, the displacement of the fixing member 60 with respect to the lower panel 38 can also be regulated by the pair of harness regulating parts 66.

[Second embodiment]
Hereinafter, a vehicle seat structure according to a second embodiment will be described with reference to FIGS. 4 and 5. Note that the same components as those in the first embodiment described above are given the same numbers and the description thereof will be omitted.

As shown in FIG. 4, the lower panel 38 according to the second embodiment includes a harness support portion 68 integrally formed so as to span the locking hole 46. As shown in FIG. The other configurations are the same as the first embodiment.

The harness support portion 68 is constituted by a wall extending diagonally from one end of the locking hole 46 in the width direction to the other end (upper end and lower end in FIG. 4), and is formed integrally with the lower panel 38. has been done. As shown in FIG. 5, when the fixing member 60 is inserted into the locking hole 46, the harness support part 68 is disposed opposite to the base part 62, and the harness support part 68 is arranged in a housing space S between the harness support part 68 and the base part 62. It is configured to sandwich a harness 56 housed therein.

(action/effect)
Since the vehicle seat structure according to the second embodiment basically follows the configuration of the vehicle seat structure according to the first embodiment, it is possible to obtain similar functions and effects.

Further, the lower panel 38 of this embodiment includes a harness support portion 68 that is integrally formed so as to span the locking hole 46 . Thereby, the harness 56 accommodated in the accommodation space S is held in a state sandwiched between the harness support part 68 and the base part 62, so that when the fixing member 60 is inserted into the locking hole 46, the harness 56 can be prevented from being deformed inside the locking hole 46. As a result, the regulation in the insertion direction of the fixing member 60 is strengthened, and the attachment position of the fixing member 60 can be further stabilized. Further, even if a harness made of a relatively soft wire is used, the fixing member 60 can be well restricted in the insertion direction, so it has excellent versatility.

(First modification of harness support part)
In addition, although the said 2nd Embodiment demonstrated the harness support part 68 bridged diagonally from the upper end of the locking hole 46 toward the lower end, this invention is not limited to this. As an example, a harness support section 72 according to a first modification example shown in FIG. 6 will be described.

In the first modification, a harness support portion 72 is integrally formed so as to span from one end in the left-right direction to the other end of a locking hole 70 formed through the lower panel 38 . In such a configuration, the harness support portion 68 extends parallel to the harness 56. Therefore, this is preferable in that the area in which the harness 56 is supported by the harness support portion 68 can be increased.

In this case, the pair of harness regulating portions 66 integrally formed on the lower panel 38 may be provided separately from the locking hole 70. In this first modification, through holes 74 are formed at both left and right positions of the locking hole 70, and a pair of harness restricting parts 66 are formed by harness restricting parts 66 provided in each of the two through holes 74. ing. Specifically, the pair of harness regulating portions 66 are provided at one end in the width direction of one through hole 74 (upper end in FIG. 6) and at the other end in the width direction (lower end in FIG. 6) of the other through hole 74. There is.

With this configuration, the opening area of each through hole (locking hole 70, through hole 74) formed in the lower panel 38 can be reduced, and the rigidity of the lower panel 38 can be increased.

(Second modification of harness support part)
Further, in the second embodiment, the harness supporting section 68 is provided separately from the pair of harness regulating sections 66, but the present invention is not limited to this. As an example, a harness support section 82 according to a second modified example shown in FIG. 7 will be described.

In the second modification, a pair of harness regulating parts 66 are formed integrally with a harness supporting part 82. The harness support part 82 is integrally formed with the lower panel 38 so as to span from one end of the locking hole 80 in the left-right direction to the other end, and the upper and lower ends of the harness support part 82 are bent toward the fixing member 60 side. Thus, a pair of harness regulating portions 66 are formed.

In this configuration, since the pair of harness regulating parts 66 are integrally formed with the harness supporting part 82, the structure of the lower panel 38 can be simplified compared to the case where the harness supporting part and the harness regulating part are provided separately. Further, the opening area of the locking hole 80 can be reduced, and the rigidity of the lower panel 38 can be increased.
[supplementary explanation]

In each of the embodiments and modifications described above, the structure in which the seat skin is attached to the lower panel 38 of the back frame 32 has been described, but the present invention is not limited thereto. For example, it can be applied to the case where a seat skin is attached to the side surface of the side frame 34 or the side surface of the cushion frame 22. When a locking hole is provided in the side frame 34 and the fixing member is attached, the pair of locking portions of the fixing member are locked to the front and rear edges of the locking hole. In the cushion frame 22, when the harness is arranged along the front-rear direction of the seat, the pair of locking portions are locked to the upper and lower edges of the locking hole. On the other hand, when the harness is arranged along the seat vertical direction, the pair of locking portions are locked to the front and rear edges of the locking hole. Furthermore, the harness 56 held by the fixing member 60 can be configured with a harness that is connected to various electrical components other than the airbag device 54. For example, it may be a harness connected to an electric reclining mechanism or a harness included in a seat heater.

In each of the embodiments and modifications described above, an example has been described in which one harness 56 is held within the accommodation space S of the fixing member 60, but the present invention is not limited to this. A configuration may be adopted in which a plurality of harnesses 56 are held within the housing space S of the fixing member 60.

In each of the above-described embodiments and modifications, the pair of harness regulating portions are formed integrally with the seat frame (lower panel 38), but the present invention is not limited to this. For example, a configuration may be adopted in which a pair of harness regulating portions are provided on the fixed member. In this case, the pair of harness regulating parts are provided so as to protrude from the inner surface of the pair of locking parts of the fixing member.

10 Vehicle seat 10 Seat frame 38 Lower panel (seat frame)
46 Locking hole 50 First skin (seat skin)
56 Harness 60 Fixing member 62 Base 64 Pair of locking parts 66 Pair of harness regulating parts 68 Harness support part 70 Locking hole 72 Harness support part 80 Locking hole 82 Harness support part S Accommodation space

Claims (4)

A locking hole formed in a seat frame constituting a seat skeleton, and a fixing member attached to the locking hole,
The fixing member includes a base portion to which the seat skin is fixed;
a pair of locking portions that extend from one end and the other end of the base to face each other and are locked to edges of the locking hole;
A part of the harness routed along the seat frame across the locking hole is held in a storage space formed by the base and the pair of locking parts.
Vehicle seat structure. The seat frame has a harness support part integrally formed so as to span the locking hole,
The vehicle seat structure according to claim 1, wherein the harness accommodated in the accommodation space is held between the harness support portion and the base portion. The seat frame has a pair of harness regulating parts that are disposed on both sides of the harness that is routed across the locking hole and are integrally formed so as to protrude toward the fixing member,
3. The vehicle seat structure according to claim 1, wherein displacement of the harness relative to the seat frame is regulated by the pair of harness regulating portions. The vehicle seat structure according to claim 3, wherein the pair of harness regulating portions are integrally formed with the harness supporting portion.