JP2579603Y2 - Armrest mounting mechanism - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mechanism for mounting an armrest on a reclining seat installed in an automobile, for example.

[0002]

[Background of the invention] As shown in Fig. 4, the reclining seat (1) installed on a car etc. has a seat (2) with a backrest.
(3) is mounted so as to be reclineable, and an armrest (4) is mounted on a side surface of the backrest (3). The armrest (4) is rotatably mounted from a substantially horizontal use state shown by a solid line to a storage state along a backrest (3) shown by a dashed line.

[0003]

2. Description of the Related Art As shown in FIG. 5, an armrest (4) is provided with a shaft rod (7) protruding laterally from an intermediate portion of a backrest (3) of a seat (1). 5) and is rotatably mounted via the shaft hole inside the armrest (4).
Insert the pawl (6) around (5) and slidably insert the pawl (6) into the guide groove (9) of the guide plate (8) mounted on the shaft rod (7). Thereby, the armrest (4) is supported in the use state and the storage state shown in FIG.

[0004]

However, in the above-described conventional configuration, when the backrest (3) is reclined in the use state of the armrest (4), the armrest (4) is moved back as shown in FIG. Following the reclining of 3), the armrest (4) could not be maintained in a substantially horizontal state, and the usability of the armrest (4) was not good when the backrest (3) was reclining.

[0005]

SUMMARY OF THE INVENTION The present invention is directed to solving the above-mentioned conventional problems by using a backrest portion of a seat (1).
(3) Attach the root end of the armrest (4) to the shaft (7) protruding laterally from the middle part of the armrest (4).
Claws (6) are inserted around the shaft (7) mounting part of (4), and stopper recesses (19A, 20A) are formed at the front end on the backrest part (3) side, and the root end is turned. A link mechanism (18) composed of a movably supported front and rear rotating rod (19, 20) and a connecting rod (22) for connecting the front and rear rotating rod (19, 20) at an intermediate portion is incorporated. The pivot axis of the rear pivot rod (19) coincides with the pivot center of the backrest (3), and the pivot axis of the front pivot rod (20) coincides with the pivot of the backrest (3). The rear pivoting rod (19) is provided in front of the center of rotation of the armrest (4) and provides a mounting mechanism for the armrest (4) which pivots following the rotation of the backrest (3).

[0006]

When the armrest (4) is in use, the claws (6) of the armrest (4) are fitted into the stopper recesses (20A) of the front pivoting rod (20) so that the armrest (4) is substantially horizontal. Support in the state. In the retracted state, the claw of the armrest (4)
(6) is fitted into the stopper recess (19A) of the rear pivoting rod (19) to support the armrest (4) along the backrest (3). When the backrest (3) is reclined, the rear pivot rod follows the reclining of the backrest (3).
(19) is rotated and inclined, and the link mechanism (18) is connected by the connecting rod (22).
The front turning rod (20) forming the rotation also rotates following the rear turning rod (19). Therefore, even in the reclining state of the backrest (3), the front pivoting rod (20) in which the pawl (6) is pivotally inclined as described above when the armrest (4) is in use.
The armrest (4) is supported in a substantially horizontal state by fitting into the stopper recess (20A).

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described with reference to an embodiment shown in FIGS. 1 to 3. The seat (2) of the seat (1) has a backrest (3).
The armrest (4) is attached to the side of the backrest (3). A shaft hole (5) and a claw (6) are provided around the shaft hole (5) at the inner root end of the armrest (4). The armrest (4) is connected to the seat (1) through the shaft hole (5).
It is rotatably mounted on a shaft rod (7) projecting laterally from an intermediate portion of the backrest (3).

A link mechanism (18) is incorporated in the backrest (3) of the seat (1), and the link mechanism (18) has front and rear pivots having stopper recesses (19A, 20A) formed at the tip. Moving rod (1
9,20), a U-shaped support shaft (21) rotatably supporting the root end of the front and rear rotating rod (19,20), and the front and rear rotating rod (1
9,20) at the intermediate portion, and the pivot axis of the rear pivot rod (19) coincides with the pivot center of the backrest (3), and The rotation axis of the part rotation rod (20) is located forward of the rotation center of the backrest part (3), and the rear rotation rod
The rear pivoting rod (19) is adapted to rotate following the rotation of the backrest (3) by rotatably penetrating the shaft rod (7) through (19). The rotating shaft of the front rotating rod (20) is fixed to the seat (2) side.

In the above configuration, when the armrest (4) is in use, the claw (6) of the armrest (4) fits into the stopper recess (20A) of the front rotating rod (20) as shown by the solid line in FIG. The armrest (4) is supported in a substantially horizontal state by the combination. When the armrest (4) is not used, the claw (6) of the armrest (4) is fitted into the stopper recess (19A) of the rear pivoting rod (19) as shown by the dotted line in FIG. 4) is supported along the backrest (3).

When the backrest (3) is reclined, the rear turning rod (19) follows the shaft rod (7) and turns and inclines, and the front turning rod (20) also connects to the connecting rod (7). It rotates and tilts following the rear turning rod (19) via 22). When the armrest (4) is used in this state, the claw (6) of the armrest (4) is moved to the front rotating rod (2) as shown by a solid line in FIG.
0) into the stopper recess (20A), and
(4) is supported in a substantially horizontal state irrespective of the reclining state of the backrest (3) as shown by the dashed line. When the armrest (4) is not used, the claw (6) of the armrest (4) is fitted into the stopper recess (19A) of the rear pivoting rod (19), and the armrest (4) is as shown by a solid line. Backrest (3) regardless of the reclining state of the backrest (3)
Are supported substantially along the line.

[0011]

According to the present invention, the armrest can be placed in a substantially horizontal state regardless of the reclining state of the backrest portion of the reclining seat, and the feeling of use of the armrest becomes extremely good.

[Brief description of the drawings]

 1 to 3 show one embodiment of the present invention.

FIG. 1 is an exploded explanatory view.

FIG. 2 is a side cutaway side view.

FIG. 3 is a side view of a side notch in a seat reclining state.

FIG. 4 is a perspective view of a seat.

FIG. 5 is an exploded view of a conventional example.

FIG. 6 is a side view of a conventional seat reclining state.

[Explanation of symbols]

 1 Seat 2 Seat 3 Backrest 4 Armrest 5 Shaft hole 6 Claw 7 Shaft rod 18 Link mechanism 19 Rear turning rod 19A Stopper recess 20 Front turning rod 20A Stopper recess 21 Support shaft 22 Connecting rod

Claims (1)

(57) [Scope of request for utility model registration] An armrest root end is rotatably attached to an axle extending laterally from an intermediate portion of a seat back portion, and a claw is extended around an axle mounting portion of the armrest.
On the backrest side, a stopper recess is formed at the distal end, and a front and rear pivot bar is rotatably supported at the root end, and a connecting rod that connects the front and rear pivot bar at an intermediate portion. A link mechanism is incorporated, and the rotation axis of the rear rotation rod coincides with the rotation center of the backrest, and the rotation axis of the front rotation rod is located forward of the rotation center of the backrest. And an armrest mounting mechanism, wherein the rear pivot rod pivots following the rotation of the backrest.