CN2275836Y

CN2275836Y - Skidway type front and rear moving seat

Info

Publication number: CN2275836Y
Application number: CN 96239449
Authority: CN
Inventors: 张玉芬
Original assignee: Individual
Current assignee: Individual
Priority date: 1996-12-19
Filing date: 1996-12-19
Publication date: 1998-03-11
Anticipated expiration: 2006-12-19

Abstract

The utility model relates to a seat which is suitable for a family or an office. A frame body is assembled with a seat frame which is provided with four slide ways which are respectively connected with the frame body with two fixed six-step shafts and two fixed hanging springs. Two back rest supporting plates are respectively inlaid with two slide ways. The front ends of the back rest supporting plates are connected with the seat frame with pin axles, and the back ends are connected with the frame body with the pin axles. The utility model has the using effects of firmness, durability and free elevation and movability.

Description

Chute type moves forward and backward seat

The utility model relates to a kind of daily necessities, particularly a kind of seat that is suitable for family or office usefulness.

Seat is the article that be unable to do without during people live, and except having beautiful outward appearance, also should have good durability, and is fit to the mechanics angle of human body characteristics.Present widely used seat is concluded and mostly existed following defective: castor is not durable, and does not match with the chair global design life-span; Though backrest is active or backrest is active but do not have automatic reset device; The seat that has also exists reliably lifting, the rotation defective such as awkward that freely is not seated.

The purpose of this utility model is to provide a kind of and moves forward and backward backrest and can automatically reset, and has the seat of chute type design feature.

The purpose of this utility model is achieved through the following technical solutions:

It is made up of five-pointed star castor, vertical shaft, skeleton, seat cushion, back cushion, several parts of handrail, is connected with elevating lever through bearing pin on the support body of skeleton, and this bar is assemblied in the vapour-pressure type arrangement for adjusting height, this device lower end and five-pointed star driving wheel cone match; Be equipped with mounting on the support body, which is provided with four slideways, respectively by two fixing hexastep shafts and two fixedly hanging spring shaft be connected on the support body, be installed with two slideways respectively on two backrest supporting plates, backrest supporting plate front end connects with mounting with bearing pin, and the rear end connects with support body with bearing pin.Be connected with seat cushion and backing cushion respectively on described mounting and the backrest supporting plate; Both sides on seat support also are provided with two handrails.

Advantage of the present utility model and good effect are:

1. castor adopts five-pointed star driving wheel structure, and in-plane moves freely, and is sturdy and durable;

2. backrest can move forward and backward and can automatically reset;

3. high pressure vacuum lifting vertical shaft is adopted in lifting, in lift, can locate at an arbitrary position, and is reliable freely.

4. the supporting of nylon end face bearing is housed on the lifting vertical shaft, and seat can easily rotate around vertical shaft.

Description of drawings is as follows:

Accompanying drawing of the present utility model is the overall structure schematic diagram.

Below in conjunction with accompanying drawing the utility model is further described:

As shown in the figure, vapour-pressure type arrangement for adjusting height 2 lower end taper seats and five-pointed star driving wheel 1 cooperate with taper seat, support body 3 cooperates with vapour-pressure type arrangement for adjusting height 2 upper end taper seats, elevating lever 4 connects the lifting button that is used for controlling on the vapour-pressure type arrangement for adjusting height with support body 3 usefulness bearing pins, stud with four slideways 6 on the mounting 5, be connected on the support body 3 by two fixing hexastep shafts 7 and two fixing hanging spring shafts 8 respectively and distinguish two slideways 10 of insert on two backrest supporting plates 9, backrest supporting plate 8 front ends connect with mounting 5 with bearing pin 11, the rear end connects with support body 3 with bearing pin 12, seat cushion 13 and mounting screw attachment, backing cushion 14 is used screw attachment with backrest supporting plate 9, and handrail 15 is used screw attachment with seat cushion 13.

Wherein, seat cushion and backing cushion adopt that urethane foam is molded to form, the five-pointed star driving wheel adopts polyoxymethylene moulding to form, handrail adopts that polypropylene is molded to form, the vapour-pressure type arrangement for adjusting height adopts the seamless pipe compression molding, all the other accessories all adopt common iron through punching press, machining, and methods such as welding form.

When the people be sitting on the chair health backward by the time, the slideway 6 of mounting 5 moves forward on support body 3 along hexastep shaft 7 and hanging spring shaft 8; Slideway 10 on the backrest supporting plate 9 is along being fixed on bearing pin 12 on the support body 3 to lower slider; When human body lifted, spring 16 pullings that mounting 5 is hung on the hanging spring shaft 8 set back, and drive the backrest supporting plate 9 that links with mounting 5 simultaneously and set back, thereby realized moving forward and backward of chair.

When needs raise chair, pull elevating lever 4 and make it to depress switch valve on the arrangement for adjusting height 2, then the mandrel on the arrangement for adjusting height rises automatically, unclamps elevating lever 4, and mandrel rises and stops, and stop position can freely be selected according to human body height; When needs reduce chair, pull the switch valve that elevating lever 4 depresses on the arrangement for adjusting height 2 and depress seat cushion 13 by human body weight, when making mandrel drop to the height that the user sees fit, unclamp elevating lever 4, then mandrel promptly stops on the desired location.

Claims

1. chute type moves forward and backward seat and is made up of five-pointed star castor, vertical shaft, skeleton, seat cushion, back cushion, several parts of handrail, it is characterized in that being connected with elevating lever 4 through bearing pin on the support body 3 of skeleton, this bar is assemblied in the vapour-pressure type arrangement for adjusting height 2, this device lower end and five-pointed star driving wheel 1 cone match; Be equipped with mounting 5 on the support body 3, which is provided with four slideways 6, respectively by two fixing hexastep shafts 7 and two fixedly hanging spring shaft 8 be connected on the support body 3, be installed with two slideways 10 on two backrest supporting plates 9 respectively, backrest supporting plate 8 front ends connect with mounting 5 with bearing pin 11, and the rear end connects with support body 3 with bearing pin 12.

2. seat as claimed in claim 1 is characterized in that being connected with respectively on described mounting 5 and the backrest supporting plate 9 seat cushion 13 and backing cushion 14; Both sides on seat support also are provided with handrail 15.