CN2599995Y

CN2599995Y - Chair with automatic tipping-up seat

Info

Publication number: CN2599995Y
Application number: CN 03214744
Authority: CN
Inventors: 刘玉宗
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-01-16
Filing date: 2003-01-16
Publication date: 2004-01-21
Anticipated expiration: 2013-01-16

Abstract

The utility model discloses a chair to turn over and set up a chair base automatically which comprises a chair back, chair feet, a limit support, a fixed axle, a chair base. The utility model is characterized in that between the fixed axle and the chair base is provided with a spiral torsion spring and a pneumatic support rod. The utility model has the advantages of reasonable structure, long lifetime and that the utility model can automatically and stably turn over and set up the chair base without any striking sounds.

Description

The chair of automatic tipping-up seat

(1) technical field:

The utility model belongs to a kind of chair, more particularly is to belong to a kind of can turn over the chair that erects seat support.

(2) background technology:

In seat places with dense relatively, the seat settled of places such as theater, assembly hall, classroom, passenger's dining car for example often is designed to chair movablely, can erect it.Like this, can increase the space, people are passed in and out conveniently.But concerning prior art, the shortcoming of existence is: setting level chair or erect chair all needs people manually to finish, cumbersome; Also can send impact noise when chair is movable sometimes.

(3) summary of the invention:

The purpose of this utility model just is to overcome outside the above-mentioned deficiency of prior art, provides a kind of rational in infrastructure, and chair can turn over the chair that stands and do not have strike note automatically.

The technical problems to be solved in the utility model adopts following scheme to realize: the utility model comprises the chair back 1, chair leg 2, spacing bearing 3 and 13, fixed axis 4, and fixed axis 4 passes the connecting hole of chair 5, and its two ends are inserted into respectively on spacing bearing 3 and 13; Chair 5 can be around fixed axis 4 rotations; At dextrorotation torsionspring 6 of the right side of fixed axis 4 suit, this spring one end is inserted on the fixed axis 4, and the other end is inserted in the jack 7 of chair 5; Perhaps change spring 8 at the left side of fixed axis 4 suit one turn-knob of supporting the leftist side, an end of this spring is inserted on the fixed axis 4, and the other end is inserted in the jack 9 of chair 5; Perhaps keep 8 two springs of dextrorotation torsionspring 6 and left-handed torsionspring simultaneously, this can make chair 5 stress equalizations some.Like this, when people are sitting on the chair 5, spring is because of reversing storage power, and when human body left chair 5, spring just released energy, and chair 5 is turned over automatically erect.

The utility model can be upright state reposefully in order to make chair 5, does not produce strike note, between fixed axis 4 and chair 5, is connected with the two ends of pneumatic support bar 12 respectively with hinge 11 by hinge 10.This pneumatic support bar plays damping action.

The utility model compared with prior art has the following advantages: when human body left chair 5, chair 5 can steadily mildly turn over automatically and erect, and bump does not produce noise; The utility model long service life proves by experiment, and chair 5 turns over upright 80,000 times automatically, and is still excellent.

(4) description of drawings:

Fig. 1 is a front view of the present utility model.Among the figure, the 1-chair back, 2-chair leg, 3 and the spacing bearing of 13-, 4-fixed axis, 5-chair, 6-dextrorotation torsionspring, 7 and the 9-jack, the left-handed torsionspring of 8-, 10 and the 11-hinge, the pneumatic support bar of 12-.

Fig. 2 is the A-A view of Fig. 1; Also be chair level and the schematic diagram that turns over upright state.

(5) specific embodiment:

The contrast accompanying drawing is described in further details optimal way of the present utility model: as shown in Figure 1, 2, the utility model comprises the chair back 1, chair leg 2; Spacing bearing 3 and 13 is screwed onto the bottom of the chair back 1 respectively; Fixed axis 4 passes the connecting hole of chair 5, and its two ends are inserted into respectively on spacing bearing 3 and 13, and chair 5 can be around fixed axis 4 rotations; At dextrorotation torsionspring 6 of the right side of fixed axis 4 suit, this spring one end is inserted on the fixed axis 4, and the other end is inserted in the jack 7 of chair 5; Change spring 8 at the left side of fixed axis 4 suit one turn-knob of supporting the leftist side, an end of this spring is inserted on the fixed axis 4, and the other end is inserted in the jack 9 of chair 5; Centre at fixed axis 4 is equipped with hinge 10 with trip bolt, the hinge 11 that on chair 5, has been welded, and the two ends of pneumatic support bar 12 are connected with hinge 11 with hinge 10 respectively.Like this, when human body is sitting on the chair 5, this chair is in level, at this moment torsionspring 6 and 8 energy storage maximums, pneumatic support bar 12 also is the compressed energy-storage state, when human body left chair 5, all energy storage all discharged, and chair 5 is turned over rapidly erect, when reaching the upright position, by the energy storage of pneumatic support bar, make chair 5 be steadily upright state, without any strike note.

Claims

1, a kind of chair of automatic tipping-up seat, it comprises the chair back (1), chair leg (2), spacing bearing (3) and (13), fixed axis (4), be sleeved on the chair (5) on the fixed axis (4), it is characterized in that: at a dextrorotation torsionspring of right side suit (6) of fixed axis (4), one end of this spring is inserted on the fixed axis (4), the other end is inserted in the jack (7) of chair (5), perhaps change spring (8) at the left side suit one of fixed axis (4) turn-knob of supporting the leftist side, one end of this spring is inserted on the fixed axis (4), the other end is inserted in the jack (9) of chair (5), perhaps keeps (8) two springs of dextrorotation torsionspring (6) and left-handed torsionspring simultaneously.

2, the chair of automatic tipping-up seat according to claim 1 is characterized in that: between fixed axis (4) and chair (5), be connected with the two ends of pneumatic support bar (12) respectively with hinge (11) by hinge (10).