SU1444186A1 - Torsional suspension of vehicle seat - Google Patents

Abstract

The invention relates to a transport engineering, in particular to vehicle seat suspensions, and makes it possible to reduce metal consumption, to provide adjustment for load and height. The suspension consists of metal cord springs 1,2 connected to the base 5 and the uprights, the movement of which changes the suspension stiffness. The seat height adjustment is carried out by means of a gear. 1 hp f-ly, 7 ill. 4 4: 4 SEA O)

Description

FIELD OF THE INVENTION The invention relates to vehicle engineering, namely to vehicle seat suspensions.

The chain of the invention is the reduction of metal-inox, improved performance.

FIG. 1 shows a torsional suspension mounted on the seat of a motor vehicle driver; in fig. 2 - suspension with a device for adjusting its stiffness; in FIG. 3, view A in FIG. 2; in fig. 4 - suspension with height adjustment device with a worm gear; in fig. 5 - the same, with a cylindrical gear; FIG. 6 is a view B in FIG. four; in fig. 7 is a section bb of FIG. 6

which head 23 is clamped by means of bolts 24.

In the rubber layer of the springs 1 and 2, steel threads 25 were vulcanised, ensuring the stability of the spring rods in the axial and transverse directions, increasing the elastic properties of the springs and their durability and eliminating the need for an inner rubber and outer cage in the rubber torsion suspension that significantly reduces the metal consumption of springs and suspensions as a whole. The suspension works in the following way.

When the seat oscillates, the load through the levers 6 and 7 is transmitted to the ret: zine torsion metal cord

Torsion bar suspension includes spring-20 springs 1 and 2, the rigidity of which is

New torsion steel cord springs 1 and 2, mounted in brackets 3 and 4, resting on base 5, and connected: e with guide levers 6 and 7.

The suspension is equipped with a rigidity adjustment device consisting of split racks 8 and 9 of which, by means of bolts 10, firmly snap the spring rods at the respective lengths determined by adjusting marks 11 (printed on the racks 8, 9 and base 5) spring sections 1 and 2.

in accordance with the load on p, it is adjusted by changing the active (working) length of the springs for moving the split racks 8

5 along the length of the rods of the springs 1 and alignment with the corresponding mi 11 (affixed, for example, the driver weight 50, 70, 90, P, after which the parts of the split st

30 and 9 by means of bolts 10 press the rods of the springs 1 and 2.

The height of the seat above the support is adjusted by means of a 12, 13, 14 or cylindrical

Suspension adjustment device, "6, 17, 18 gear.

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providing a change in the height of the position of the depreciable object above the reference surface, can be complete in the form of a worm gear gear (see fig. 4), the gear wheels Q 12 and 13 of which are rigidly connected to the stem of the springs 1, 2 in their middle part, and also match the worm

14, on which the handle is mounted

15, or in the form of a cylindrical gear (see FIG. 5), the gears 16 and 17 of which are likewise connected to the stem of the springs 1, 2 and

a gear 18, which is fixed on the shaft 19, passing through the holes in the brackets 3 and 4, with a handle 20 on one of the ends of the shaft 19.

The springs 1 and 2 are vulcanized to the bushes 21 installed in the holes of the brackets 3 and 4. On the free section of the bush 21 there are slots 22 designed to install guide levers 6 and 7 on them,

50

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If necessary, the stiffening device for suspending the seat cell can be combined in one suspension (see Fig. 4, while gearing is transmitted between the split racks and, during the adjustment process, the seat should be released to allow rotation of springs 1 and 2 in from the struts 8 and 9.

Claims (1)

1. A torsion suspension of a vehicle seat, a torsion spring, direction and adjustment device for changing the torsion stiffness, in order to reduce metal consumption, improve operational characteristics, torsion springs, made of metal-reinforced according to the load on the suspension, it is adjusted by changing the effective (working) length of the springs by moving the split struts 8 and 9 along the length of the rods of the springs 1 and 2 to be combined with the corresponding marks 11 (placed, for example, on the driver’s mass 50, 70, 90, ON kg), after which parts of the split struts 8 and 9 by means of bolts 10 firmly clamp the rods of the springs 1 and 2. The height of the seat above the supporting surface is regulated by means of a screw 12, 13, 14 or a cylindrical five Q 0 five If necessary, devices for adjusting the suspension stiffness and the seat height can be combined in one suspension (see Fig. 5), while the gear is placed between the split struts 8 and 9, and in the process of adjusting the seat height, the bolts 10 should be released to allow free rotation spring 1 and 2 in the holes racks 8 and 9. Formula inveni.ni 1. A torsional suspension of a vehicle seat comprising a torsion spring, a guide device and an adjustment device for changing the torsion stiffness, characterized in that, in order to reduce metal consumption and improve performance, the torsion springs are made of metal-reinforced rubber, .X Vida Fig.Z YU /, FIG. 2 Fy 20 /, 19 16. AT lj ± d  BUT 6