CN2034410U

CN2034410U - Adjustable writting easy chair

Info

Publication number: CN2034410U
Application number: CN 88206786
Authority: CN
Inventors: 郭吉皂
Original assignee: Individual
Current assignee: Individual
Priority date: 1988-06-06
Filing date: 1988-06-06
Publication date: 1989-03-22

Abstract

The utility model discloses an adjustable writing easy chair. The front end of a cushion is rotatably connected with a front supporter, the back end is fixed with a slider which can up-down slide in a supporter slide way of a backrest waist holder. When an adjusting handle is turned, a handle resistance arm and a connected supporting bar can be expanded-form folded, and therefore, the included angle between the cushion and the horizontal plane and the backrest can be changed in order to provide different angles for writing and flat sitting.

Description

Adjustable writting easy chair

The utility model relate to a kind of easy chair, particularly a kind of backrest and cushion all adjustable write easy chair.

Traditional furniture such as chair, folding seat, armchair etc. of taking a seat, although appearance differs, but it is similar, being the cushion of level or level of approximation constitutes with rectangular backrest roughly, such structure is for just sitting or face upward by comparatively comfortable, but writes then not fully up to expectations for bending over the desk.Reason is that this moment, human body was reached forward, and the waist awl is the cantle posture, and waist loses support away from backrest, cause psoas in tension.Because deviation of gravity center, buttocks are the sliding trend in back, it is very easily tired that the leg muscle pressure is increased, and makes the user who is engaged in the work of writing for a long time feel extremely uncomfortable.

The purpose of this utility model is to overcome the above-mentioned shortcoming of traditional seat, design a kind of novel seat, when bending over the desk to write, change the angle of cushion and backrest as required, thereby create a kind of suitable service condition to the user.

Accompanying drawing 1 is that this easy chair diagrammatic sketch, Fig. 2 write state easy chair schematic diagram.Fig. 3 adjusts handle and writes state position figure.

Easy chair is made up of following part, such as Fig. 1 or Fig. 2 Fig. 3. 1, the forked leg of level; 2, column rotating shaft; 3, universal wheel; 4, cushion; 5, handrail; 6, back waist holder; 7, shoulder pillow; 8, adjust handle; 9, cushion front support stand; 10, support bar; 11, cushion link block.

Main points of the present utility model are that cushion front end and cushion front support stand 9 adopt axial rotation to connect, a slide block 11 is fixed in the cushion posterior end, this slide block can move up and down by the rotation of adjusting handle 8 in the slideway of a side bracing frame bottom suitable length of backrest waist holder, plays the seat cushion rear end is risen and the effect that descends.Adjusting handle 8 is the lever of a bent one-tenth approximate right angle, is that the rotary link joint of axle is in a side of cushions support frame with the fulcrum.Resistance arm have spacing card and with support bar 10 link joints.The other end of support bar 10 is fixed on the slide block 11 of cushion lower end, rotates and moves when adjusting handle, and slide block can be along moving up and down in the slideway of backrest waist holder bracing frame, when slide block arrives bottom dead centre.Support bar 10 is 0 ° with the resistance arm angle, and cushion keeps level, and this moment, easy chair was flat seat state.When slide block arrived top dead-centre, support bar 10 was 180 ° with the resistance arm angle, because the effect of spacing card, angle will keep this angle, rise the cushion rear end, is forward lean, and this moment, easy chair was for writing state.The angle of cushion and horizontal plane is that the degree that leans forward of cushion is by adjusting the vertical range of handle fulcrum to cushion lower end support bar fixing point, decide with the ratio of fulcrum to the horizontal range of cushion fore-stock 9, this ratio is big, then angle is big, ratio is little, and angle is little.Controlling this ratio makes its angle comparatively suitable between 10-20 °.

The bracing frame lower end of backrest waist holder and cushions support frame rear side link joint.When flat seat state, about 110 °-120 ° of the angle of waist holder and cushion, when writing state, about 90 ° of its angle.

For guaranteeing the stable of easy chair integral body, the utility model adopts the forked leg of level of I shape, divides into four universal wheels.Forked leg should be slightly larger than the length of cushion and wide.

Easy chair is supported in the center of the forked leg of level by the column rotating shaft, and the user can be along column rotating shaft conversion different directions.

The utility model is owing to adopt the said structure design, so can adapt to flat seat and write two kinds of different instructions for uses, when writing state, cushion leans forward, backrest waist holder simultaneously moves forward and props up waist, make when writing more comfortablely, thereby brought convenience to the user.

Claims

1, a kind of adjustable easy chair of writing is made up of supporting leg, cushion, the holder of backrest waist, handrail and shoulder pillow, it is characterized in that:

A, cushion front end and cushion front support stand rotation-coupled, cushion rear end and backrest side bracing frame are connect by a slide block that can move in the slideway of this bracing frame bottom suitable length, when said slide block moves up and down by adjusting handle, the angle between cushion and the horizontal plane is changed;

B, said adjustment handle are the bent lever that becomes approximate right angle, its fulcrum and cushion one side frame link joint, resistance arm one end have spacing card and with the support bar link joint that is fixed in cushion lower end slide block.

2, according to the said easy chair of claim 1, it is characterized in that adjusting the vertical range and fulcrum ratio to the horizontal range of cushion fore-stock of handle fulcrum, should make cushion and horizontal plane angle between 10-20 ° to cushion lower end support bar fixing point.

3,, it is characterized in that supporting leg is to have the level forked leg of back to wheel according to the described easy chair of claim 1.