JPS6341972Y2 - - Google Patents

Description

[Detailed description of the invention] This invention is an armrest device for an automobile seat.
More specifically, the present invention relates to an armrest device that locks the armrest when the armrest is stored.

Conventionally, an armrest rotatably pivoted to the seat back is placed in a space formed between a pair of left and right seat backs of a three-person seat in a car, for example, so that the arm rest is flush with the seat back. An armrest device (Utility Model Publication No. 42-9688) was proposed in which the armrest is stored, and when the armrest is in use, the armrest is rotated forward from the above-mentioned space until it reaches a substantially horizontal position, and the armrest is stopped at the horizontal position. has been done.

However, in the above proposal, when the armrest is tilted backwards, the armrest is regulated so that it is flush with the seat back, but when it is tilted forward, there is no regulation until the horizontal position where it is used as an armrest. When used in the front seat, when the car suddenly stops, the rear seat occupant bumps into the armrest that is in the stowed state, causing the armrest to tilt forward, and from the empty space created by the forward tilting of the armrest, the passenger moves toward the front seat. The drawback was that there was a risk of an accident such as flying out, and the safety of the passengers was lacking.

The present invention has been made in view of this point, and as described above, the armrest, which is stored in the empty space formed between the pair of left and right seatbacks of an automobile, is rotated by the armrest bracket fixed to the seatback frame. It is supported freely, and this armrest bracket extends in the front and back direction,
A locking member is attached that can freely rotate in the vertical direction with its rear end as the center of rotation, and an operating section for rotating the locking member downward is attached to the locking member.The locking member is rotated upwardly by a spring. An engaging part that slopes diagonally downward is formed at the rear end of the upper surface of the armrest, and when the armrest is retracted, the front end of the locking member comes into contact with this engaging part and moves forward of the armrest. An armrest device for an automobile seat that is configured to prevent the armrest from rotating freely in a stowed state, thereby preventing the armrest from freely tilting forward and rotating, thereby improving the safety of occupants. We aim to provide the following.

Hereinafter, the present invention will be explained in detail based on an embodiment shown in the drawings.

1 to 5 show an example in which the armrest device for a car seat according to the present invention is applied to a front seat of a car, and 1 is a seat cushion for three people; At the rear end, there are left and right seat backs 2, 2 with a space 3 between them.
are formed and are rotatably connected via reclining devices 4, 4, respectively.

Seat back frame 2 on either side (usually driver's seat side) of the above seat backs 2, 2
A seat back bracket 6 having a support hole 5 is fixed to the hollow space 3 side of a, and the seat back bracket 6 has a U-shaped cross section with a length dimension that is approximately the same as the width dimension of the void space 3. An armrest bracket 7 is fixed at one end (right end) with bolts 8, 8 and nuts 9, 9. The armrest bracket 7 is formed by sheet metal press working or the like, and has side wall portions 7a, 7a protruding forward in the lower half of each side end, and each of the side wall portions 7
Insertion holes 10, 10 are located on the same axis in the left-right direction as the support hole 5 of the seat back bracket 6, respectively, so that a pivot shaft 13 for supporting an armrest 11 (described later) can be inserted through the holes 10, 7a. It is perforated.

Further, an armrest 11 is disposed between the side walls 7a, 7a of the armrest bracket 7, and is formed by covering a support frame 11a with a pad 11b, and covering the outer surface of the pad 11b with a skin 11c. The armrest 11 is arranged so that the hole 12 formed in the support frame 11a and the insertion holes 10 in the side walls 7a and 7a are aligned with the armrest bracket 7 so that they are aligned on the same axis.
By inserting and assembling the pivot shaft 13 into each of the holes 12 and 10, 10, it is pivotally supported so as to be rotatable about the pivot shaft 13. The armrest 11 is in the upright position.
The armrest surface (top surface) of 1 is the armrest bracket 7
While in contact with the upper half, when the armrest 11 is in a horizontal position, the rear end of the armrest 11 is provided so as to abut and engage with a stopper 14 fixed to the armrest bracket 7 to restrict the range of rotation;
In the upright position, it is stored in the empty space 3 flush with the seat bags 2 on both sides, while in the horizontal position it is used as an armrest for the occupant. Reference numeral 15 denotes a cover panel fixed to the skin 11a near the rear end of the armrest 11, which is engaged with the armrest bracket 7 via hooks 16, 16 and is attached by screws 17, 17. This is to hide the armrest 11 from being exposed to the outside. Further, 18 is a seat adjuster that adjusts the front and back position of the seat cushion 1.

Furthermore, through holes 19, 19 are bored in the lower ends of both side walls 7a, 7a of the armrest bracket 7 at positions parallel to the pivot shaft 13, and the armrest bracket 7 is formed between the two through holes 19, 19. As shown in FIG. 4, a locking member 20 having a substantially L-shaped cross section extending in the front-rear direction has holes 2 formed in side pieces 20a, 20a extending downward from the rear portions of both ends thereof.
1 and 21 respectively into the through holes 19 and 19, and the pivots 22 and 22 are inserted into the holes 21 and 19 and 19 from the outside of the side walls 7a and 7a and bolted to the rear end. The locking member 20 is rotatably supported around the center of rotation.
is configured such that its rear end comes into contact with the rear surface of the armrest bracket 7 to restrict its rotation. Furthermore, a torsion coil spring 23 is interposed between the locking member 20 and the side wall portion 7a, with both ends thereof being locked to the rear surfaces of the locking member 20 and the armrest bracket 7, respectively. The locking member 20 is biased by the spring force 23 so that its front end portion rotates upward, and the upper surface of the locking member 20 is always brought into contact with the armrest 11. A straight rod-shaped operating portion 24 for rotating the locking member 20 downward is attached to the front end side of the locking member 20.

Furthermore, an engaging portion 25 is formed at the rear end of the upper surface (armrest surface) of the armrest 11 and is inclined obliquely downward toward the rear, so that when the armrest 11 is stored in the empty space 3, the armrest 11 The contact with the upper surface of the locking member 20 is released, and the locking member 2
0 is the locking member 20 by the torsion coil spring 23
When the rear end portion contacts the rear surface of the armrest bracket 7, the front end surface 20b of the locking member 20 contacts the engaging portion 25 to prevent forward rotation of the armrest 11. has been done.

Therefore, in the above-described armrest device, when the armrest 11 is raised and rotated rearward about the pivot shaft 13 in order to store the armrest 11, the locking member 20 engages the torsion coil spring 23 with the rotation. Due to the force of the torsion spring, the upper surface follows and rotates so as to come into contact with the armrest 11. When the armrest 11 is further rotated and stored in the space 3 between the seat bags 2, 2 flush with both the seat bags 2, 2, in that position,
The contact between the upper surface of the locking member 20 and the armrest 11 is released, and the locking member 20 rotates to the restriction position where its rear end contacts the armrest bracket 7, and accordingly, the front end surface 20b of the locking member 20 is rotated. By abutting and engaging with the engaging portion 25 of the armrest 11, the forward rotation of the armrest 11 is reliably locked. Further, forward rotation of the armrest 11 is prevented because when the armrest 11 is stored in the seat bags 2, 2, the locking member 20 rotates upward due to the spring force and comes into contact with the back surface of the armrest 11. It has the advantage that it can be done automatically.

On the other hand, when the armrest 11 is tilted forward for use, the front end of the locking member 20 is pushed down by hand against the rotation biasing force of the torsion coil spring 23 by pressing down the operating portion 24 of the locking member 20. Rotates downward to release the abutting engagement between the front end surface 20b of the locking member 20 and the engaging portion 25 of the armrest 11, and in this state, the armrest 11 freely rotates forward and locks the armrest. 11 can be easily rotated to a horizontal position with good operability.

In the above embodiment, the operating section 24 provided on the locking member 20 is shaped like a straight bar, but if the operating section is L-shaped with the tip bent forward, the locking member 20 can be easily locked. This is preferable because the release operation can be performed easily.

Furthermore, the armrest device of the present invention can be applied not only to the front seats of automobiles as in the above embodiment, but also to the rear seats. It is possible to improve safety by preventing the user from falling to the side.

As described above, according to the present invention, the armrest, which is stored in the space formed between the left and right seat backs of an automobile, is flush with the seat back when stored, and is in a substantially horizontal position when in use. In an armrest device for a car seat rotatably attached to a seatback, the armrest is rotatably supported by an armrest bracket fixed to the seatback frame, and the armrest bracket includes an armrest extending in the front-rear direction; A locking member is attached that can freely rotate in the vertical direction with its rear end as the center of rotation, and an operating section for rotating the locking member downward is attached to the locking member.The locking member is rotated upwardly by a spring. An engaging part that slopes diagonally downward is formed at the rear end of the upper surface of the armrest, and when the armrest is retracted, the front end of the locking member comes into contact with this engaging part and moves forward of the armrest. By preventing the rotation of the armrest, it is possible to reliably and automatically prevent the armrest from rotating forward when it is stowed, thereby preventing rear seat occupants from flying toward the front seat when the vehicle suddenly stops. This is extremely effective in improving passenger safety, including measures to prevent accidents such as ejecting.

[Brief explanation of drawings]

The drawings illustrate an embodiment of the present invention, and FIG. 1 is an overall perspective view, FIG. 2 is a cross-sectional view taken along the line -- in FIG.
The figure is an enlarged side view of the main part, FIG. 4 is a perspective view of the locking member, and FIG. 5 is an exploded perspective view of the main part. DESCRIPTION OF SYMBOLS 1... Seat cushion, 2... Seat back, 2a... Seat back frame, 3... Vacant part, 4... Reclining device, 5... Support hole,
6... Seat back bracket, 7... Armrest bracket, 7a... Side wall portion, 8... Bolt, 9... Nut, 10... Insertion hole, 11... Armrest, 11a... Support frame, 11b...
... Padded, 11c... Epidermis, 12... Hole, 13...
... Pivot shaft, 14 ... Stopper, 15 ... Cover panel, 16 ... Hook, 17 ... Screw, 18 ...
Seat adjuster, 19... Through hole, 20... Locking member, 20a... Side piece, 20b... Front end surface, 2
DESCRIPTION OF SYMBOLS 1... Hole, 22... Pivot, 23... Torsion coil spring, 24... Operation part, 25... Engaging part.

Claims (1)

[Scope of utility model registration request] An armrest stored in a space formed between a pair of left and right seat backs of an automobile is rotatably pivoted to the seat back so that it is flush with the seat back when stored and is in a substantially horizontal position when in use. In the automobile seat armrest device, the armrest is rotatably supported by an armrest bracket fixed to the seatback frame, and the armrest extends in the front-rear direction and has a rear end portion as the center of rotation. A rotatable locking member is attached to the locking member, and an operating part for rotating the locking member downward is attached to the locking member.The locking member is urged upward by a spring, and An engaging part that slopes diagonally downward is formed at the end, and when the armrest is stored, the front end of the locking member comes into contact with this engaging part to prevent forward rotation of the armrest. A distinctive armrest device for automobile seats.