SU1313744A1 - Lifting-swivelling support of vehicle seat - Google Patents

Abstract

The invention relates to the field of mechanical engineering, in particular to vehicle seats. The purpose of the invention is to facilitate control and reduce the time for changing the seat position. The seat support contains a base for attachment to a semi-cabin. An immobile tube of a telescopic guide device is fixedly attached to the base. Inside the pipe, a piston is movably mounted, connected by means of a rod to an external lifting and turning pipe, on which the seat support is installed. A fixed pin is mounted on the fixed tube, which enters the slot of the shaped groove with a fixing recess in the vertical wall of the up-and-down outer tube. To control the flow of the working medium, a two-way distribution valve with a rotary slide valve and a control handle is installed, and a sleeve with a calibrated bore is installed in the supply pipe. 2 Il. U (L from 00 4

Description

The invention relates to mechanical engineering, namely to seats for vehicles and energy vehicles, which change their height and angle of rotation and are intended to be installed, for example, on forest tractors equipped with manipulators.

The purpose of the invention is to invest in control and reduce the time for changing the seat position.

FIG. Figure 1 shows a lift / tilt bearing, obedient view; in fig. 2 - the same section.

The support comprises a base 1 for attachment to the floor of the vehicle cabin. An internally stationary pipe 2 of a telescopic guide device is fixedly attached to the base 1. Inside the pipe 2, the piston 3 is movably mounted by means of a rod 4 connected to an external lifting and turning pipe 5 on which the seat 6 support is mounted. On the fixed pipe 2 there is a fixing pin 8, which fits into the slot of the figure groove 9 and a fixing recess 10 in the vertical the wall of the lifting-turning outer pipe 5. The working medium is supplied under pressure through a tube 11 with a sleeve 12 installed in it with a calibrated orifice. To control the supply of the working medium and the subsequent lifting-turning of the device in the rupture of the tube 11, connecting the source of the working medium under pressure of the vehicle to the fixed tube 2, a two-way distribution valve 13 with a rotary slide 14 and a control handle 15 is installed.

In the transport position of the tractor, the handle 15 of the crane 13 is turned to the right and the piston space in the fixed pipe 2 is connected to the atmosphere or drain by means of the pipe 11 and the channels of the spool 14. The operator's seat is in the lower (transport position).

When the handle 15 is turned to the left, the spool 14 of the crane 13 communicates the working medium of the tractor through the tube 11 with the sub-piston space of the inner pipe 2. The working medium passes through the sleeve 12 with a calibrated orifice.

0

smoothly pushes the pistol 3 moving in the pipe 2, which through the rod 4 lifts the outer pipe 5 with the seat 7 mounted on it and the operator on it.

The pipe 5, the slippery walls of its figure groove 9 along the surface of the finger 8, simultaneously rotates along the path defined by the configuration of the figure groove 9. After lifting and turning, the finger 8 falls into the recess 10 located at the end of the figure groove 9 and thereby fixes the seat in the up-turned working position. The handle 15 is set to the right position and the subsonic space is communicated with

5 by discharging the working medium, the supply of which from the tractor system is stopped.

In order to rotate the seat, the operator pushes the seat in the direction opposite to that of the lift-and-turn.

0 removes the locking pin 8 from the recess 10 in the shaped slot 9 and further rotates and lowers the seat. At the same time, the working medium is compressed by the piston 3 through a calibrated orifice and a single

The spool sleeve 14 gradually goes to the drain and the seat with the operator smoothly turns and falls into the transport position.

Claims (1)

Invention Formula Q Lifting and tilting support of the vehicle seat, comprising a telescopic guide device and a support position lock, characterized in that, in order to facilitate control and reduce the time for changing position 5 seat, the inner tube is fixedly fixed on the seat base and covers the piston with njTOKOM connected by the upper end with the outer tube, wherein the said retainer is made in the form of a figured slot on the vertical wall of the outer tube coupled to the finger fixed on the inner tube, a piston the cavity of which is made with a hole connected to a source of working medium under pressure. 13 FIG. 2 Compiled by A. Slykhov Editor A. Makovska Tehred I. VeresKorrektor M. Pojo Order 2172/20 Circulation 599 Subscription VNIIPI USSR State Committee for Inventions and Discoveries 1 13035, Moscow, Zh-35, Raushsk nab. 4/5 Production and printing company, Uzhgorod, ul. Project, 4