JPH0434748Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a vehicle seat in which an armrest is pivotably supported between a use position and a storage position.

(Prior Art) Conventionally, this type of vehicle seat has a seat back frame 1, as shown in FIG.
The lower end of the seatback frame 1 is supported by a cushion frame via a hinge plate 2, a mounting plate 3 is fixed to the seatback frame 1, and an armrest 4 is attached to the seatback frame 1.
is supported by a support plate 6 via a link mechanism 5, and the support plate 6 is fastened to the mounting plate 3 with bolts 7 and weld nuts 8.

(Problems to be Solved by the Invention) However, in such a conventional example, since the support plate 6 of the armrest 4 is fastened to the mounting plate 3, in addition to the support plate 6, the mounting plate 3 and the weld nuts are connected. 8 is required, which increases the number of parts and increases assembly man-hours, which increases costs.Also, it is necessary to secure a large space inside the armrest to store these parts, and a cover to hide them from the outside is required. Since 9 is required, there are also problems in that the number of parts increases, the number of assembly steps increases, the cost increases, and the appearance is poor.

The present invention has been developed by focusing on these conventional problems, and aims to provide a vehicle seat that reduces costs by reducing the number of parts and assembly man-hours.

(Means for Solving the Problems) The gist of the present invention for achieving the above purpose is to provide an armrest to a base plate of a vehicle seat in which the armrest is pivotably supported between a use position and a storage position. The base plate is fixed to the end of the seat bag frame, an engaging pin for pivotally connecting the seat bag to the cushion side is fixed to the end of the base plate, and the base plate is fixed to the end of the seat bag frame. The present invention relates to a vehicle seat characterized by forming a part of a seat back frame.

(Function) In the vehicle seat described above, the pivot portion constitutes a part of the seat back frame and also serves as a pivot portion of the armrest.

(Example) Hereinafter, each example of the present invention will be described based on the drawings. Note that in each embodiment, similar parts are given the same reference numerals and redundant explanations will be omitted.

1 to 3 show a first embodiment of the present invention.

As shown in FIG. 2, seat backs 11 and 12 of the vehicle seat 10 are tiltably supported by a cushion 13, and an armrest 20 is provided on the seat back 11 in a storage position (the position shown in FIG. 2) and a use position ( 3).

The seat back 11 is swingably supported by a cushion frame 13a of a cushion 13 via an engaging pin 30a of a base plate 30, and is tiltable and adjustable by a reclining device (not shown). On the other hand, the seat back 12 is swingably supported by a cushion frame 13a via an engagement pin 12a of a base plate, and is tiltable and adjustable by a reclining device 12b.

As shown in FIG. 1, the base plate 30
constitutes a pivot portion of the armrest 20, and also constitutes a part of the seatback frame 40 of the seatback 11. That is, the upper end 30b of the base plate 30 is connected to the lower end 40a, which is the end of the seatback frame 40, with the bolt 31.
The base plate 30 forms part of the seatback frame 40.

As shown in FIGS. 1 and 3, the armrest 20 is swingably supported on the base plate 30 via a link mechanism 50. As shown in FIGS. The link mechanism 50 is composed of three levers 51 to 53, the end of the lever 51 is fastened to the armrest 20 with a bolt 54, and the levers 52, 5
3 are pivotally connected to the base plate 30 by pins 55 and 56. base plate 30
The armrest 20 is swingably supported by a link mechanism 50 and constitutes a unit.

In the vehicle seat 10 having the above configuration, a unit that swingably supports the armrest 20 on the base plate 30 by the link mechanism 50 is incorporated when the seat 10 is manufactured. That is, before attaching the cushion body and the skin, the upper end 30b of the base plate 30 is attached to the seat bag.
The frame 40 is integrally fastened to the lower end portion with bolts 31. Engagement pin 3 at the lower end of the base plate 30 forming a part of the seatback frame 40
The seat back frame 40 is supported so as to be tiltable forward and backward by engaging the frame 0a to the cushion side frame, and the framework of the seat 10 is formed, after which the exterior is applied. When the armrest 20 in the retracted position shown in FIG. 2 is pulled out, the link mechanism 50 swings and extends from the position shown by the chain line in FIG. 3 to the position shown by the solid line. 3rd by mechanism 50
It swings from the storage position shown by the chain line in the figure to the use position shown by the solid line. To store the armrest 20 in the use position, push up the armrest 20 in the use position shown by the solid line in FIG. 3 from below, and the link mechanism 50 moves from the position shown in the solid line in FIG. 3 to the position shown in the chain line. Rocks and folds,
This causes the armrest 20 to be retracted as shown in FIG.

FIG. 4 shows a second embodiment of the invention.

In this second embodiment, the armrest 20 is pivotally supported on the base plate 30 by a mechanism different from that of the first embodiment, and the other configurations are the same as those of the first embodiment.

As shown in FIG. 4, pins 20a and 20b are provided protruding from the side surface of the armrest 20. The base plate 30 has an engagement hole 30c in which the pin 20a engages, and a pin 20b in which the pin 20b engages.
An elongated hole 30d is bored to limit the rotation.

Therefore, when the armrest 20 is in the use position shown in FIG.
It is located at the upper end of d.

When the armrest 20 is pushed up from the position shown in FIG. 4, the pin 20b is displaced within the elongated hole 30d from its upper end toward its lower end, thereby causing the armrest 20 to swing around the pin 20a. . When the pin 20b moves to the lower end of the elongated hole 30d, the armrest 20 comes to the storage position.

Conversely, when the armrest 20 in the retracted position is pulled out, the pin 20b is displaced within the elongated hole 30d from its lower end toward its upper end, thereby causing the armrest 20 to swing around the pin 20a. . As shown in FIG. 4, the pin 20b is connected to the elongated hole 30d.
When the armrest 20 is moved to the upper end of the armrest 20, the armrest 20 is set in the use position.

In each of the embodiments described above, the pivot portion of the armrest 20 is constructed from the base plate 30, and the base plate 30 is formed as a part of the seatback frame 40, so that the mechanism for pivoting the armrest 20, etc. is hidden from the outside. cover 9 is not required;
Therefore, the number of parts can be reduced, the cost can be reduced, and the appearance is also good.

Note that the pivot portion of the armrest 20 is not limited to the base plate 30.

(Effects of the invention) According to the vehicle seat according to the invention, the pivot portion of the armrest is formed as a part of the seatback frame. can be installed, reducing the number of parts and assembly man-hours, thereby reducing costs.

[Brief explanation of the drawing]

Figures 1 to 3 show a first embodiment of the present invention, in which Figure 1 is an exploded perspective view showing the main parts, Figure 2 is an exploded perspective view showing the vehicle seat, and Figure 3 is the operation. FIG. 4 is an exploded perspective view showing the main parts of the second embodiment of the present invention, and FIG. 5 is an exploded perspective view showing the main parts of the conventional example. 10...Vehicle seat, 20...Armrest, 30...Base plate (pivot part), 40...
...Seat back frame.

Claims (1)

[Scope of Claim for Utility Model Registration] In a vehicle seat in which an armrest is pivotably supported between a use position and a storage position, the armrest is swingably supported on a base plate to constitute a unit, and the base plate is fixed to the end of the seat bag frame, and an engaging pin for pivotally connecting the seat bag to the cushion side is fixed to the end of the base plate, so that the base plate becomes a part of the seat bag frame. Vehicle seat.