JP2002209666A - Armrest installing structure of vehicule seat - Google Patents

Abstract

PROBLEM TO BE SOLVED: To arrange a turnable armrest in an optimal position in an armrest installing structure of a vehicule seat having a reclining mechanism. SOLUTION: A back frame pipe 11 of a seat back is joined to a movable part 14 of a hinge assembly 10 via a reclining bracket 13. A fixing part 15 of the hinger assembly 10 is fixed to a car body via a bracket 16. Hinge brackets 18 and 19 are welded to the reclining bracket 13. A stay 21 of an armrest 9 is installed on the hinge brackets 18 and 19 with a stepped bolt 22, and the armrest 9 is turnably supported between an almost horizontal using position and a springing-up position almost running along the seat back. The armrest 9 is installed on the reclining bracket 13 via the stay 21 and the hinge brackets 18 and 19, and can be arranged in the optimal position without interfering with the reclining bracket 13.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle seat armrest mounting structure for mounting an armrest on a seatback of a vehicle seat such as an automobile having a reclining mechanism.

[0002]

2. Description of the Related Art An example of a conventional automobile seat having an armrest will be described with reference to FIG. As shown in FIG. 7, the seat 1 includes a seat cushion 2 and a seat back 3, and a headrest 4 is mounted on an upper portion of the seat back 3, and an armrest 5 is mounted on a side portion.

[0003] The seat 1 is a retractable seat provided with a reclining mechanism, so that a seat back 3 can rotate between an upright position and an inclined position with respect to a seat cushion 2. Further, the armrest 5 is rotatably supported by the seat back 3 and can take a substantially horizontal use position shown in the figure and a flip-up position along the seat back 3 by being rotated upward. I can do it.

[0004]

The conventional seat 1 has the following problems. Generally, a reclining bracket (not shown) for connecting a frame (not shown) of the seat back 3 to a hinge mechanism (not shown) for reclining is arranged on a side portion of the seat back 3. . For this reason, the armrest 5 is arranged at a position slightly closer to the center of the front side of the seat back 3 so as not to interfere with the reclining bracket as a structural member, or as shown in FIG. Often placed outside. As described above, since the mounting position of the armrest 5 is restricted, the armrest 5 cannot always be arranged at an optimum position.

SUMMARY OF THE INVENTION The present invention has been made in view of the above points, and has an armrest mounting structure for a vehicle seat in which interference between an armrest and a reclining bracket is eliminated so that the armrest can be arranged at an optimum position. The purpose is to provide.

[0006]

According to a first aspect of the present invention, an armrest is rotatably supported by a seat back rotatably supported on a vehicle body via a reclining mechanism. When installed, a substantially horizontal use position,
In a vehicle seat armrest mounting structure capable of moving between a jumping position substantially along a seatback, a hinge bracket is fixed to a reclining bracket that couples the seatback to the reclining mechanism, and the hinge bracket The armrest is rotatably mounted on the armrest. With this configuration, the armrest is attached to the reclining bracket via the hinge bracket, and is supported by the reclining bracket. An armrest mounting structure for a vehicle seat according to a second aspect of the invention is characterized in that, in the configuration of the first aspect, the reclining bracket and the hinge bracket are integrally formed. With this configuration, the number of parts and the number of manufacturing steps can be reduced. The vehicle seat armrest mounting structure according to the third aspect of the present invention is the vehicle seat armrest mounting structure according to the first or second aspect, wherein a recess is formed above the reclining bracket of the seatback, and the armrest is moved to a flip-up position. The armrest is accommodated in the recess. With this configuration, when the armrest is not used, the armrest can be moved to the flip-up position and housed in the recess. An armrest mounting structure for a vehicle seat according to a fourth aspect of the present invention is the vehicle seat armrest mounting structure according to any one of the first to third aspects, wherein the armrest is configured such that a stay extended from the armrest main body can rotate on the hinge bracket. It is characterized by being attached to. With this configuration, the armrest main body is rotatably supported by the hinge bracket via the stay, so that interference between the armrest and the reclining bracket due to the length of the stay is prevented.
An armrest mounting structure for a vehicle seat according to a fifth aspect of the present invention is the vehicle seat armrest mounting structure according to the fourth aspect, wherein the stay is formed with a slit through which the stay is inserted. Is accommodated in the slit. With this configuration, when the armrest is set at the flip-up position, the stay is accommodated in the slit, and thus the appearance is excellent. Further, in the armrest mounting structure for a vehicle seat according to the invention of claim 6, in the configuration of claim 4 or 5, the stay is provided with a stopper pin, and the stopper pin is provided on a contact portion provided on the hinge bracket. The rotation of the armrest is restricted by contacting the armrest. With this configuration, the armrest can be held at an appropriate position by bringing the stopper pin of the stay into contact with the contact portion of the hinge bracket.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below in detail with reference to the drawings. As shown in FIG. 2, the seat 6 according to the present embodiment is used as a rear seat of an automobile, and includes a seat cushion 7 and a seat back 8, and an armrest 9 is attached to the seat back 8. ing. The seat cushion 7 is fixed to a floor panel (not shown) of the vehicle body. The seat back 8 is attached to a floor panel of the vehicle body via a hinge assembly 10 (reclining mechanism), and falls forward with respect to the seat cushion 7 to a standing position shown in FIG. 2 and a substantially horizontal position. It is supported rotatably between the tilted position in the state.

As shown in FIGS. 1, 3 to 6, the seat back 8 is made of a cushion material after a back frame pipe 11 and a reclining bracket 13 formed in a substantially U-shape are fixed to a panel 32. It is covered with a pad 12, and a sheet trim (not shown) is adhered to the surface. Reclining brackets 13 made of a plate-like member having a substantially L-shaped cross section are connected to both ends of the substantially U-shaped back frame pipe 11 by welding or the like and extend downward. The hinge assembly 10 includes a movable portion 14 and a fixed portion 15 that are pivotally mounted on each other. The base end of the reclining bracket 13 is coupled to the movable portion 14, and the fixed portion 15 is attached to the vehicle body via the bracket 16. Fixed to floor panel. A hole 17 for inserting and supporting a stay (not shown) of the headrest is provided in an upper portion of the seat back 8.

As shown in FIGS. 1, 3 and 4, a pair of left and right hinge brackets 18, 19, which are bent in a substantially L-shape, are attached to one of the reclining brackets 13. The hinge brackets 18 and 19 are welded so as to sandwich the reclining bracket 13 from both sides, and both ends are extended forward to form a substantially U-shape. At the tips of the hinge brackets 18, 19, the pad 20 of the armrest 9 is attached.
A pair of stays extended in parallel from the (armrest body)
The tip of 21 is rotatably attached by a stepped bolt 22.

The stepped bolt 22 is connected to the hinge brackets 18, 19
And a screw portion formed at the tip thereof is screwed to a welding nut 23 fixed to one of the stays 21 and fixed to the stay 21. Hinge bracket 1
A bush 24 made of a synthetic resin is interposed between the stays 8 and 19 and the stay 21 in order to prevent the backlash. The stepped bolt 22 has a spring washer 25
Is installed. A stopper pin 26 is welded to each of the pair of stays 21. When the armrest 9 is rotated downward, the stopper pin 26
By contacting the step portions 28 and 29 (contact portions) formed on the portions 8 and 19, the rotation thereof is regulated, and the armrest 9 is held at the substantially horizontal use position.

The seat pad 12 of the seat back 8 has a slit 30 through which one of the stays 21 of the armrest 9 is inserted.
Are formed, and the pair of stays 21 rotate along the side surface of the seat back 8 and the slit 30, respectively.
In the seat pad 12 of the seat back 8, a concave portion 31 is formed above the reclining bracket 13,
When the armrest 9 is rotated upward and moved to the flip-up position, the pad portion 20 is accommodated in the concave portion 31 so that the surface of the seat back 8 and the back surface of the pad portion 20 become flush. I have.

The operation of the embodiment constructed as described above will be described below. Normally, as shown in FIGS. 2 and 5, the seat back 8 is used as an occupant's seat with the seat back 8 in a standing position, and the seat back 8 is rotated forward to a tilting position (not shown). By seat back 8
Can be used as a luggage space or the like.

When used as an occupant seat, the armrest 9 is rotated forward as shown in FIGS. 2 and 6, and the stopper pin 26 of the stay 21 is hinged to the hinge bracket 18,
It can be used as an armrest by abutting against the 19 steps 28 and 29 and fixing it at a substantially horizontal use position. When not in use, as shown in FIG. 5, the armrest 9 can be rotated upward to be stored in the recess 31 of the seat back 8, and at this time, the back surface of the pad portion 20 is 8, and one stay 21 is accommodated in the slit 30, so that the boarding space can be increased.

The armrest 9 includes a hinge bracket 1 fixed to the inside and outside of the reclining bracket 13.
8, 19 and a pair of stays 21 having an appropriate length extending from the armrest 9 are rotatably connected to each other,
By providing a space between the pair of stays 21 and arranging the reclining bracket 13 in this space, interference between the armrest 9 and the reclining bracket 13 is prevented,
Armrest 9 can be arranged at an optimal position. Further, since the armrest 9 is supported by the reclining bracket 13, which is a structural member, its support rigidity can be increased.

The pad portion 20 of the armrest 9 includes a stay 21
Are pivotally supported by the hinge brackets 18 and 19 via the brackets, so that they can be arranged at the optimum height in the use position without interfering with the reclining bracket 13, and in the flip-up position, Can be housed in the concave portion 31 of the seat back 8 disposed above. In addition, since the rotating mechanism of the armrest 9 does not use a complicated link mechanism or the like only with the rotating shaft by the stepped bolt 22, the structure is simple and the manufacturing cost is low. Further, when the armrest 9 is at the flipped-up position, one of the stays 21 is accommodated in the slit 30 of the seat back 8 and is not exposed to the outside, so that the appearance is excellent.

In the above-described embodiment, the hinge bracket and the reclining bracket are formed as separate members. However, they may be integrally formed.
The number of parts and the number of manufacturing steps can be reduced, and the manufacturing cost can be reduced. Further, in the above-described embodiment, the case where the present invention is applied to the rear seat of an automobile is described as an example. However, the present invention is not limited to this, and the present invention is not limited to this. Sheet
(Including a reclining mechanism including an angle adjusting mechanism) can be similarly applied.

[0017]

As described above in detail, according to the vehicle seat armrest mounting structure according to the first aspect of the present invention, the armrest is mounted on the reclining bracket via the hinge bracket and supported by the reclining bracket. Therefore, the support rigidity can be increased. According to the vehicle seat armrest mounting structure according to the second aspect of the present invention, since the reclining bracket and the hinge bracket are integrally formed, the number of parts and manufacturing steps can be reduced, and manufacturing costs can be reduced. . According to the armrest mounting structure for a vehicle seat according to the invention of claim 3, when the armrest is not used, the armrest can be moved to the flipped-up position and housed in the concave portion, and the riding space can be widened. . According to the vehicle seat armrest mounting structure according to the fourth aspect of the present invention, the armrest body is rotatably supported by the hinge bracket via the stay, so that interference between the armrest and the reclining bracket depends on the length of the stay. Can be prevented, and the armrest can be arranged at the optimum use position and the flip-up position. According to the vehicle seat armrest mounting structure according to the invention of claim 5, when the armrest is moved to the flip-up position, the stay can be accommodated in the slit, so that the appearance can be improved. According to the armrest mounting structure for a vehicle seat according to the invention of claim 6, the armrest can be held at an appropriate position by appropriately arranging the stay stopper pin and the contact portion of the hinge bracket.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an armrest mounting structure for an automobile rear seat according to an embodiment of the present invention.

FIG. 2 is a perspective view showing an automobile rear seat according to one embodiment of the present invention.

FIG. 3 is a cross-sectional view taken along line AA of FIG. 1;

FIG. 4 is an exploded perspective view of FIG.

5 is a side view of the seat back of the vehicle rear seat shown in FIG. 2, showing a state where an armrest is at a flip-up position.

FIG. 6 is a side view of the seat back of the vehicle rear seat shown in FIG. 2, showing a state where an armrest is at a use position.

FIG. 7 is a perspective view of a conventional vehicle seat having an armrest.

[Explanation of symbols]

 6 Seat 8 Seat back 9 Armrest 10 Hinge assembly (reclining mechanism) 13 Reclining bracket 18,19 Hinge bracket 20 Pad (armrest body) 21 Stay 26 Stopper pin 28,29 Step (abutment) 30 Slit 31 Recess

 ────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Noriyuki Sugihara 300 Takatsukacho, Hamamatsu-shi, Shizuoka Suzuki Co., Ltd. F-term (reference) 3B087 CB12 DB02 DC02 3B099 AA05 BA04 CB06 DA03

Claims (6)

[Claims] 1. An armrest is rotatably mounted on a seatback rotatably supported on a vehicle body via a reclining mechanism, so that a substantially horizontal use position and a flip-up position substantially along the seatback are provided. An armrest mounting structure for a vehicle seat that can move between the seatbacks, wherein a hinge bracket is fixed to a reclining bracket that couples the seatback to the reclining mechanism, and the armrest is rotatably mounted to the hinge bracket. An armrest mounting structure for a vehicle seat. 2. The armrest mounting structure for a vehicle seat according to claim 1, wherein the reclining bracket and the hinge bracket are integrally formed. 3. A recess is formed above the reclining bracket of the seatback, and the armrest is accommodated in the recess when the armrest is moved to a flip-up position. Item 1
Or the armrest mounting structure for a vehicle seat according to 2. 4. The vehicle seat according to claim 1, wherein a stay extending from the armrest body is rotatably attached to the hinge bracket in the armrest. Armrest mounting structure. 5. A slit is formed in the seat back so as to allow the stay to pass therethrough, and the stay is accommodated in the slit when the armrest is at a flip-up position. An armrest mounting structure for a vehicle seat according to claim 1. 6. The rotation of the armrest is restricted by providing a stopper pin on the stay and contacting the stopper pin with a contact portion provided on the hinge bracket. Item 6. An armrest mounting structure for a vehicle seat according to item 4 or 5.