CN2855203Y

CN2855203Y - Chair having detachable back and regulatable angle

Info

Publication number: CN2855203Y
Application number: CN 200520037343
Authority: CN
Inventors: 杜亚伦
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-12-13
Filing date: 2005-12-13
Publication date: 2007-01-10
Anticipated expiration: 2015-12-13

Abstract

The utility model relates to a chair, the backrest can be dismounted and the angle of the backrest can be adjusted; the utility model especially relates to a household and office chair, especially, a household and office sofa chair. The chair comprises a chair back rest, a chair cushion support; one swing arm of the swing mechanism is fixed at the back of both sides of the chair cushion support; the lock catch is fixed at the back of both sides of the chair backrest; the other side of the swing arm can be inserted into the lock catch; the swing arm of the swing mechanism is hinge-jointed with the rocker arm by a pin roll; and the piston is installed between the swing arm and the rocker arm. By installing the swing mechanism and the bolt mechanism, the chair has the functions of dismantling the backrest and adjusting the backrest angle, featuring simple structure and simple operation.

Description

Backrest is dismantled and assembled, the seat of adjustment angle

Technical field

A kind of backrest of the utility model seat dismantled and assembled, that adjust angle relates generally to seat, the especially family of family and office usefulness and the couch of office usefulness.

Background technology

The seat that the backrest that present people mostly use can fascinate belongs to backrest substantially and recedes separately, and its deficiency is that backrest recedes separately, and cause built on the sand at the deviation of gravity center center of whole seat in use, founders easily, influences safe in utilization.Given this, occurred a kind of seat that adopts the slip lifter to adjust backrest angle on the market again, gone rotation hand wheel to realize adjusting angle but should the slip lifter need the end user to stoop waist, sometimes need to adjust and repeatedly just can find proper angle, operate loaded down with trivial detailsly, bothersome, time-consuming, be difficult for controlling.

In addition, most seat all is holistic, can not dismounting, and it is big to take up room in transportation, storage process, and transportation, warehousing costs height have increased the production cost of enterprise.Simultaneously, the consumer also brings a lot of inconvenience using, moving in the process.

Summary of the invention

The purpose of this utility model provides the seat that a kind of backrest is dismantled and assembled, adjust angle, it overcome above-mentioned described seat defective, by being installed, swing mechanism and bolt mechanism realize that backrest is dismantled and assembled, the purpose of adjustment angle, and simple in structure, easy to use.

A kind of backrest of the utility model is dismantled and assembled, the seat of adjustment angle, comprise backrest, seat support poppet, it is characterized in that having a swing arm of a swing mechanism to be fixedly installed in rear, described seat support poppet both sides, described backrest down either side is installed with snap close, and another rocking arm of described swing mechanism can insert snap close; The swing arm of described swing mechanism and rocking arm are hinged by bearing pin, and piston also is installed between swing arm and rocking arm.

Above-mentioned backrest is dismantled and assembled, the seat of adjustment angle, the piston seat of described piston is movably connected on an end of rocking arm, the piston rod of described piston is movably connected on an end of swing arm, and the air vent switch on the piston rod is equipped with backguy, and the other end of backguy can be installed on the arbitrary convenient place of seat.

Above-mentioned backrest is dismantled and assembled, the seat of adjustment angle, and described snap close is a taper slot, and an end of described rocking arm is the plate of a corresponding taper.

Above-mentioned backrest is dismantled and assembled, the seat of adjustment angle, has block tongue on the described snap close.

The utility model backrest is dismantled and assembled, the seat of adjustment angle, and swing mechanism and bolt mechanism Star are dismantled and assembled to backrest by installing, the function of adjustment angle, and simple in structure, easy to use.

Description of drawings

Fig. 1 is the structural representation that the utility model is dismantled and assembled, adjust the chair embodiment of angle.

Fig. 2 is the structural representation that the utility model is dismantled and assembled, adjust the described swing mechanism of seat of angle.

Fig. 3 is the structural front view that the utility model is dismantled and assembled, adjust the described snap close of seat of angle.

Fig. 4 is the left view of Fig. 3.

Fig. 5 is an A-A cutaway view shown in Figure 3.

The specific embodiment

The utility model is described in further detail below in conjunction with accompanying drawing:

See shown in Figure 1, be the embodiment that the utility model is dismantled and assembled, adjust the seat of angle, comprise backrest 1, seat support poppet 2, two swing mechanisms are arranged between backrest 1 and seat support poppet 2, be installed on the both sides of backrest 1, seat support poppet 2 respectively, this swing mechanism has a swing arm 3 and a Rocker arm 4, see shown in Figure 2, swing arm 3 usefulness screws are fixedly installed in described seat support poppet 2 proceeds posterolateral by screw 31, be installed with snap close 5 at backrest 1 side-lower, see shown in Figure 3ly, a Rocker arm 4 of described swing mechanism can insert snap close 5; As shown in Figure 1, when not using, move or transportation etc. when reducing space hold when so backrest 1 uses, backrest 1 can be pulled up from Rocker arm 4 as needs; The swing arm 3 of described swing mechanism and Rocker arm 4 are hinged by bearing pin 41, piston 6 also is installed between swing arm 3 and Rocker arm 4, the piston seat 61 of this piston 6 is movably connected on an end of Rocker arm 4 by bolt 65, described bearing pin 41 and bolt 65 the latter half at Rocker arm 4, at a distance of certain distance, so can make the top of Rocker arm 4 that bigger degree of waving is arranged; The piston rod 62 of described piston 6 is movably connected on an end of swing arm 3, and the air vent switch 63 on the piston rod 62 is equipped with backguy 64.So, size by backguy 64 control air vent switch 63, thereby the stroke of control piston bar, also just controlled the amplitude of fluctuation of Rocker arm 4, for the convenience of the users, the other end of backguy 64 can be installed on the arbitrary convenient place of seat, also can be arranged on the sofa handrail side as shown in Figure 1, makes spanner 7 shapes; Or do the drag-line that becomes band, the end of drag-line is arranged between seat cushion and the handrail.

Further form can be, described snap close 5 is a taper slot, see Fig. 3, Fig. 4, shown in Figure 5, the upper end of described Rocker arm 4 is the plate 42 of a corresponding taper, described plate 42 inserts described taper slot, with Connection Block chair back 1, seat support poppet 2, adopt taper can guarantee to connect more firm.Form further, on the described snap close 5 block tongue 51 can be installed, the tongue 511 of block tongue 51 can snap in the through hole 421 of plate 42, so can control relatively moving of snap close 5 and plate 42 better, guarantee the stable of backrest 1, prevent to move up and down.

During use, the people is made on the chair, when needing layback, exerts oneself backward, pulls wrench 7 simultaneously, and Rocker arm 4 drives piston 6 motions, and spanner 7 is unclamped in backrest 1 layback, and action finishes; In the time of need setting back, pull wrench 7, the piston rod autokinesis restores to the original state, and unclamps spanner 7, and action finishes.

Claims

1, dismantled and assembled, the seat of adjusting angle of a kind of backrest, comprise backrest, seat support poppet, it is characterized in that having a swing arm of a swing mechanism to be fixedly installed in rear, described seat support poppet both sides, described backrest down either side is installed with snap close, and another rocking arm of described swing mechanism can insert snap close; The swing arm of described swing mechanism and rocking arm are hinged by bearing pin, and piston also is installed between swing arm and rocking arm.

2, dismantled and assembled, the seat of adjusting angle of backrest according to claim 1, it is characterized in that the piston seat of described piston is movably connected on an end of rocking arm, the piston rod of described piston is movably connected on an end of swing arm, air vent switch on the piston rod is equipped with backguy, and the other end of backguy can be installed on the arbitrary convenient place of seat.

3, dismantled and assembled, the seat of adjusting angle of backrest according to claim 2 is characterized in that described snap close is a taper slot, and an end of described rocking arm is the plate of a corresponding taper.

4, dismantled and assembled, the seat of adjusting angle of backrest according to claim 3 is characterized in that having block tongue on the described snap close.