CN2045963U

CN2045963U - Seat support of adjustable angle

Info

Publication number: CN2045963U
Application number: CN 89201322
Authority: CN
Inventors: 易乔安
Original assignee: Individual
Current assignee: Individual
Priority date: 1989-01-28
Filing date: 1989-01-28
Publication date: 1989-10-18

Abstract

The utility model relates to a seat support of adjustable angle, through which the seat plate of a seat is inclined following the inclined plane of the backrest. The included angle of the seat plate and the backrest can be changed to adapt to the working and resting needs of the seat holder. An elastically telescopic seat plate frame, a backrest support, and a support through which the seat plate frame and the backrest support are connected together are connected through three pin shafts, and the seat support of adjustable angle becomes a reverse triangular coupled rod frame. The utility model has the advantages of simple structure and low cost.

Description

Seat support of adjustable angle

The utility model is a kind of seat board of seat and the interlock governor motion of backrest, makes seat board can make a kind of chair angle modulation mounting of the inclination that adapt with the inclination of backrest.

See with the organization of human body characteristics, when seat surface is retroverted state, human body back certainly will corresponding receding, and the gravity center of human body moves thereupon backward, in order to rest, otherwise, when the people bent over one's desk working, often center of gravity wished that seat board is returned to level from retroverted state thereupon forward this moment, and conventional seat does not possess this kind function, therefore, the dual needs that use common seat can not satisfy people's work and have a rest.

In order to address the above problem, the patent of invention ownership that her rattan happiness work place Patent Office of the People's Republic of China of Amada Co., Ltd. has applied for a kind of chair, its Patent classificating number is A47C1/031, this invention has proposed a kind of seat board and backrest or mechanism that one of them is regulated to seat, can make seat have the function of work and rest double duty, what adopt is that four connecting rods bearing pin alive connects and band pneumatic spring telescopic arm structure form, its number of components is many, complex structure, pneumatic spring technological requirement height in addition, this chair cost is significantly improved, be difficult to extensively promote at home.

The purpose of this utility model be propose a kind of simple in structure, the Seat support of adjustable angle that cost is low, the inclination that makes seat board do to adapt with the inclination of backrest reaches the purpose that the chair of can working can be made resting chair again.

Essence of the present utility model is meant a kind of chair angle modulation mounting, its seat board can tilt with the inclination of backrest, that is the angle between backrest and seat board can change, it is characterized in that making jointed shaft with three bearing pins, form the del connecting rod rest, wherein going up crossbearer is the seat board frame, between this two ends jointed shaft the elastic telescopic member is housed, but make its elastic telescopic, all the other two hinged axle bases of coupled frame are immutable, and these two coupled frames are respectively back rest and the support that is connected back rest and seat board frame.

The chair angle modulation mounting of the utility model indication, it is compared with aforementioned chair patent of invention and common seat board and the unadjustable seat of backrest, have simple in structure, manufacturing process is simple, cost is low, be easy to the extensively advantage of employing, and can satisfy dual function as the Seat support of adjustable angle of work chair and resting chair.

Attached Fig. 1 and 2 is front view and the vertical view of the utility model embodiment.

Fig. 1 is a sliding sleeve, the 2nd, and slide bar, the 3rd, spring, the 4th, the left and right folding shape plate of composition support, the 5th, arm-rest frame, the 6th, seat cushion, the 7th, holder grillage, the 8, the 13rd, hex nut, the 9th, back rest, 10, the 11st, forward and backward bearing pin, the 12nd, the backup plate frame connects bearing pin, the 14th, wearing piece, 15 pads, 16 screw mandrels, 17 handles, pipe in 18,19 arm-rest frame upper flanges, 20 arm-rest frame lower support legs.A, B, C are respectively three center of rotation.

In conjunction with the accompanying drawings, briefly introduce present embodiment structure and operation principle: sliding sleeve 1, slide bar 2, spring 3, holder grillage 7 and nut 8,13, but the seat board frame of forming elastic telescopic, this is connected with flange 19 usefulness screws on the U type arm-rest frame base, sliding sleeve 1 is fixed in the middle of holder grillage 7 rear ends, the slide bar front end stretches out sliding sleeve, spring 3 is enclosed within outside the slide bar, but the also adjusting nut usefulness of double as spring tension of spring is blocked with nut 8 in the end, sliding thick stick rear end stretch out behind the sliding sleeve with back rest 9 in the middle of rotating shaft 12 interstitial holes that are connected pin follower heads with nut 13 in the back movingly, folding shape plate front and back axis hole is respectively by preceding about support, rear pin shaft 10, hole on two lower support legs 20 before 11 below arm-rest frame 5 is hinged, a back and back rest 9 left sides, right support lower end pin-and-hole is hinged, but finish del connecting rod rest structure by seat board frame crossbearer on last work of elastic telescopic, in the time need relying on the backrest rest after the seat person work, human body back is pushed backrest to hypsokinesis, the hypsokinesis of back rest drives slide bar 2 and slides in sliding sleeve 1, and overcome spring force and holder grillage 7 is driven do the hypsokinesis that adapts, hypsokinesis along with back rest 9 and seat board frame, angle increases thereupon between the two, up to reaching desirable resting guard, this moment rotatable handles 17, screw mandrel 16 promotes its front end pad 15, wearing piece 14 is pressed on sliding pole axis pins this Seat support of adjustable angle on the one section plane that mills out.

Claims

A kind of Seat support of adjustable angle that the seat seat board is tilted with the inclination of backrest, it is characterized in that making jointed shaft with three bearing pins, form the del connecting rod rest, wherein going up crossbearer is the seat board frame, between this two ends jointed shaft the elastic telescopic member is housed, all the other two coupled frames are respectively back rest and the support that is connected back rest and seat board frame.