SU517523A1 - Lifting mechanism of the vehicle seat - Google Patents

Description

one

The invention relates to means for increasing the comfort of passenger seats of vehicles, in particular, to lifting mechanisms of seats, mainly t-sacks and special machines, allowing them to adjust their spatial position.

Known is the lifting mechanism of the vehicle seat, which contains a sirenous parallelogram, fixed on the base, rod and lock position of the parallelogram (1). Parallelogram rod through the elastic element (suspension of the seat) and the adjusting means POSITION seat height is connected to the base of the seat.

This device allows the seat to be adjusted only in height and thus creates the inconvenience of using drivers with different anthropometric data.

Other vehicle seat lifting mechanisms are known that provide for the possibility of adjusting the seat position in the day-front direction (2) OR the angle of inclination (3) by changing the length of one of the seat supports.

These devices have the same disadvantage as the first, and do not allow the seat to be set to a position corresponding to the individual anthropometric driver data in height, angle and distance from the steering wheel of the vehicle.

The described invention is the closest - but technical essence - to the first FROM the known solutions of the problem.

In order to improve comfort in the field, the lift mechanism is provided with a means for longitudinal movement of the seat fixed to the rod, the latter being located at one of the vertices of the parallelogram, and one OF the sides of the parallelogram is of adjustable length to change the angle of the seat; the means for longitudinal movement of the seat includes consoles fixed on the ends of the rod and sleeves connected to the seat and mounted on the arms with the possibility of non-rebuilding, fixation on the fir by means of stoppers; The side of the parallelogram, which is made of adjustable length, consists of two parts connected by a threaded sleeve.

FIG. 1 depicts a lifting mechanism of the seat, side view in section; in fig. 2 - the same, VIEW from above; in fig. 3 - the same, different position of the lifting mechanism; in fig. 4 and 5 are a fi xxator position of the parallelogram.

The lifting mechanism of the seat contains a hinged parallelogram 1, sides 2 and 3 of which are fixed in the base 4, the rod

5, placed in one of the vertices of the parallelogram and carrier means for the longitudinal movement of the seat, including a console

6, mounted on the “onza rods, and bushings

7, connected to the seat 8 and mounted on the brackets with the possibility of moving and fixing on them in the slots 9 a plurality of stoppers 10, and a parallelogram presentation locking device representing a gear stopper and consisting of a gear 11 mounted on the bottom the end of side 2 of the parallelogram, and the notched lecturer 12, connected by one end (with axis 13, mounted at the base 4, and the other with axis 14, on which a spring-loaded ice-plate 15 with a cam .16 is attached. Side 3 of the p-arallogram is of adjustable length and consists of two parts, connect threaded bushing 7. The sides 2 and 3 of the parallelogram are spring-loaded by fastening one end of the spring 17, placed on the rod 5, to the consoles 6, and drT | TTO on the side 2 of the parallelogram. "A-side

2 parallelogram by means of sleeves .19.

.Use the device: as follows.

Depending on the anthropometric data of the driver, for ease of positioning it relative to the controls, the seat is set to the required height by pressing the pedal 15. With overcoming the resistance of the spring 20. The pedal rotates about the axis 14 and its cam 16 comes off the bearing surface 2.1 of the base 4 in the groove 22 (Fig. 4 and 5). At the same time, the toothed sector 12 rotates counterclockwise relative to the axis 13 and releases the gear 11. Under the action of the spring 17, the parallelogram tends to reduce the angle a between its sides, i.e., lift the seat (see figs. 1 and 3). To fix the parallelogram, it is enough to release the pedal, which under the action of the spring 20 returns to its original position, its cam enters into contact with the base surface 21 of the base, and the toothed sector engages with the gear 11. The seat in the front-rear direction adjusts the position the stoppers 10 of the slots 9 of the cantilevers and the movement of the sleeves 7 along the brackets in the right direction and subsequent fixation. The seat angle is adjusted by changing the length of the side 3 of the parallelogram by rotating the threaded hub.

Using all three seat position adjustments, one obtains the necessary positioning of the seat in accordance with the driver's individual data, which increases the ease of use.

Claims (3)

1. A lifting mechanism for a vehicle seat, preferably t-cams and special vehicles, comprising an articulated parallelogram fixed on the base, strut and locking position of the parallelogram, characterized in that, in order to improve ease of use, it is provided with means for longitudinal movement of the seat fixed on the rod, with the latter being placed at one of the vertices of the parallelogram, and one of the sides of the parallelogram is of adjustable length to change the angle of inclination of the seat. 2. The seat mechanism for item .1 is different from the fact that the means for longitudinal movement of the seat contains coisols attached to the ends of the rod and the sleeves associated with the seat and mounted on consoles with the possibility of moving and fixing on them through stoppers. 3. The seat mechanism according to claim 1, distinguished by the fact that the parallelogram side, of adjustable length, consists of two parts interconnected by a threaded hub. Sources of information taken into consideration in the examination: IA with. USSR № 308892 cl. At 60N 1/02, the priority is .1970. II.Patent of France No. 1586051 cl. In 60N publ. .1970 III.Patent UK No. 1286439 cl. And 4J publ. 1972. , 2/2 // ///// / 6 f / / 15 1 ,five lSh ,, / I 1  22 . five