JPS6338842Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a vehicle seat, and particularly to an armrest that can be freely adjusted vertically along the front surface of the seat back.

Recently, as shown in FIG.
It has been proposed that the seat back part 2 and the armrest 3 can be adjusted vertically using gears, rack mechanisms, etc.
The higher the armrest 3 is moved, the larger the gap S between the armrest 3 and the armrest 3 becomes, causing the armrest 3 to shift forward relative to the arm, making it impossible to place the arm in a predetermined position on the armrest 3. ,
It has the disadvantage of not being able to relax comfortably.

Therefore, an object of the present invention is to enable the armrest to move along the seat back portion when adjusting the vertical movement of the armrest, thereby eliminating the above-mentioned drawbacks, and will be described in detail below using embodiments.

2 to 5 are simplified configuration diagrams showing one embodiment of the vehicle seat according to the present invention. In each figure, the center portion of the seat cushion portion 1 is open and the armrest 3 is installed in this opening 4. It will be stored. On the floor surface exposed through the opening 4, two position adjustment frames 6 having stoppers 5 in multiple stages are installed in parallel, and the stoppers 5 have a triangular shape with the front side inclined and the rear side rising. It takes on a shape and protrudes. The armrest 3 is held by two cross bars 8 and 9 which are pivotally connected to a shaft 7. The front side of the first cross bar 8 is pivotally connected to the front side of the armrest 3 by a shaft 10, and the rear side is pivotally connected to the front side of the armrest 3. is pivotally connected to the lower part of the seat back portion by a shaft 11. The second cross bar 9 also has a slide shaft 12 at its rear end.
The slide shaft 12 is slidably inserted into a guide groove 13 provided at the rear end of the armrest so as to extend in the longitudinal direction of the vehicle. Therefore, the rear end portion of the cross bar 9 can freely slide within the guide groove 13 as the armrest 3 moves up and down. A locking rod 14 is provided at the front end of the second cross rod 9, and this locking rod 14 is locked by an arbitrary stopper 5 of the position adjustment frame 6. A stopper release lever 15 is located on the lower side of the locking rod 14, and the rear end of this release lever 15 is fixed to the shaft 16.

According to the above configuration, while sitting on the seat cushion and leaning your back against the seat back portion 2, lift the armrest 3 upward and position the locking rod 14 of the second cross rod 9. Adjustment frame 6
The height can be adjusted simply by engaging an arbitrary stopper 5 provided in the height. In this case, the armrest 3 rotates back and forth about the shaft 11 on the rear end side of the armrest 3 as a fulcrum while maintaining a horizontal state, which corresponds to moving in an oblique direction. is always seat back part 2
It moves closely along the slope of the backrest. Therefore, as the armrest 3 moves upward, no gap is created between the armrest 3 and the seat back portion 2, and the arm can always be placed in a predetermined position on the armrest 3. Further, as the inclination angle of the seat back portion 2 changes, the longitudinal position of the shaft 11 shifts, so the longitudinal position of the armrest 3 also changes, and the armrest 3 moves back and forth almost accompanying the seat back portion 2. Thereby, the position of the armrest 3 relative to the arm can always be set at an accurate position regardless of the angle of the seat back portion 2.

In addition, in order to lower the armrest 3 that has been raised upward, the lever 15 is lifted upward, and the locking rod 14 connecting the two left and right second cross rods 9 is moved to the stopper 5 of the position adjustment frame 6. The armrest 3 is released from the lock, slides forward on the lever 15, and is instantly stored in the opening 4 in the seat cushion 1. This allows armrest 3
is located on the same plane as the seat cushion part 1,
Functions as a seat cushion.

As explained above, according to the present invention, the first cross rod 8 is pivotally connected via the shaft 7 so as to cross each other, and the upper end thereof is inclined from the front side of the armrest 3 and extends toward the seat back portion 2 side. , a vehicle seat in which the armrest 3 is held by a second cross rod 9 whose upper end is inclined from the rear side of the armrest 3 and extends toward the front of the seat cushion portion 1; The upper ends of the two cross bars 8, 9 are connected to shafts 10, 12 provided on the armrest 3.
A guide groove 13 is provided to guide the shaft 12 for attaching the upper end of the second cross bar 9 to the armrest 3 in the front-rear direction of the armrest 3, and the seat back portion 2 of the first cross bar 8 is attached to the armrest 3 via the guide groove 13. The side is pivotally connected to the seat back part 2 via the shaft 11 so as to be rotatable in the front and back direction, and the seat cushion part 1 side of the second cross bar 9 is movable in the front and rear direction along the vehicle floor. Since the position adjustment frame 6 for adjusting the front and back direction on the side of the seat cushion part 1 is provided, the height of the armrest can be adjusted along the seat back part, and the positional relationship between the arm and the armrest can always be maintained appropriately.

[Brief explanation of the drawing]

FIG. 1 is a simplified sectional view showing an embodiment of a conventional vehicle seat having an armrest, and FIGS. 2 to 5 are simplified structural diagrams showing an embodiment of the vehicle seat according to the present invention. 3... Armrest, 4... Opening, 5... Stopper, 6... Position adjustment frame, 7, 10, 11...
...shaft, 8, 9...cross bar, 12...slide shaft, 13...guide groove, 14...locking rod, 15...
...stopper release lever, 16...shaft.

Claims (1)

[Claims for Utility Model Registration] (1) A first cross rod 8 and a first cross rod 8 which are pivoted so as to cross each other via a shaft 7, and whose upper ends extend toward the seat back portion 2 side with an incline from the front side of the armrest 3; , a vehicle seat in which the armrest 3 is held by a second cross rod 9 whose upper end is inclined from the rear side of the armrest 3 and extends toward the front of the seat cushion portion 1; The upper ends of the second cross rods 8 and 9 are attached to the armrest 3 via shafts 10 and 12 provided on the armrest 3, and the upper end of the second cross rod 9 is attached to the armrest 3 through a shaft 12.
A guide groove 13 is provided for guiding the armrest 3 in the front-rear direction, and the first cross rod 8 on the seat back portion 2 side is pivotally connected to the seat back portion 2 via a shaft 11 so as to be rotatable in the front-rear direction,
The seat cushion part 1 side of the second cross rod 9 is
A vehicle seat is provided with a position adjustment frame 6 which is movable in the longitudinal direction along the vehicle floor and which adjusts the longitudinal direction of the seat cushion portion 1 side. (2) The vehicle according to claim 1, wherein the position adjustment frame 6 has a stopper 5 that prevents the second cross bar 9 from moving forward on the seat cushion portion 1 side. Sheet for use.