CN2761049Y

CN2761049Y - Lifting armrest of office chair

Info

Publication number: CN2761049Y
Application number: CN 200520053830
Authority: CN
Inventors: 王宁
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-01-24
Filing date: 2005-01-24
Publication date: 2006-03-01
Anticipated expiration: 2015-01-24

Abstract

The utility model mainly relates to an armrest of an office chair which can rise and fall, particularly a chair armrest which can adjust height. The utility model comprises an armrest support. The utility model is characterized in that the armrest support is fixed on an armrest bracket which is sheathed on an armrest supporting frame which is fixed on a chair bottom frame. The end of the armrest supporting frame is provided with a plurality of axial bar-shaped notched along the circumferential direction, and a fixing clip is arranged on the periphery of the end. After the adoption of the structure, a user can adjust the armrest support through wrenching a handle. Then, that height is freely adjusted is really realized. In addition, the utility model has the advantages of simple and convenient adjustment and high durability.

Description

Liftable office chair handrail

Technical field

The utility model liftable office chair handrail relates generally to armrests, especially can adjust the armrests of height.

Background technology

Generally speaking, armrests mostly is to be fixed on the chair, and is stable, firm, durable like this, but, because the difference of user's individuality, as height, reason such as fat or thin, the height of handrail need be adjusted different height, could be fit to user's needs, and it is more comfortable that the user is sat up.A kind of chair that can adjust the handrail height has been arranged on the market, what its structure adopted is plece-cliped type, this structure still exists a lot of deficiencies: at first, the chair of this kind structure, the stroke of handrail adjustment is fixed, or the distance of a screens, or the distance of several screens, the height of handrail is not adjustable arbitrarily, and the user is very dissatisfied; Secondly, the chair of this kind structure is of a specified duration service time, screens place serious wear, card can occur and not live hard-to-use phenomenon, the user has adjusted height, and arm one is put on the handrail, and handrail has has been pressed, card incessantly, this phenomenon often occurs, and brings a lot of inconvenience to the user, even unexpected sometimes card incessantly, make the user lose center of gravity, phenomenon occurs falling.

Summary of the invention

The purpose of this utility model provides a kind of novel liftable office chair handrail, and it has overcome the described defective of above handrail, can really realize freely adjusting height, and adjusts simply, conveniently long-lived purpose.

The technical scheme of the utility model liftable office chair handrail is: comprise the handrail holder, it is characterized in that described handrail holder is fixed on the handrail carriage, the handrail carriage is set on the armrest support, and armrest support is fixed on the chair underframe; There is fixing card the end of described armrest support along circumferentially some axial bars v notch vs being arranged on the periphery of end.

Above-mentioned liftable office chair handrail, described fixedly card comprises handle, cassette tape, anchorage bar, the both ends that described anchorage bar passes cassette tape are fixed on the end of handle, described this handle end has pin and anchorage bar hinged, be resisted against on the cassette tape, the cross sectional shape of this handle end is an eccentric structure simultaneously.

Adopted above structure, the user can adjust the handrail holder by pulling handle, and real the realization freely adjusted highly, and adjusts simple, convenient, durable in use.

Description of drawings

Fig. 1 is the chair partial schematic diagram that the utility model liftable office chair handrail is installed.

Fig. 2 is the structural representation of the fixedly card of the utility model liftable office chair handrail.

The specific embodiment

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

See Fig. 1, shown in Figure 2, the technical scheme of the utility model liftable office chair handrail is: comprise handrail holder 1, described handrail holder 1 is fixed on the handrail carriage 2, and handrail carriage 2 is set on the armrest support 4, and armrest support 4 is fixed on the chair underframe 5; The end of described armrest support 4 among Fig. 2 is four along circumferentially some axial bars v notch vs 41 being arranged, and fixing card 3 is arranged on the periphery of end, and fixing card 3 can be fixed on the armrest support 4 by rivet 35 or other modes, sees shown in Figure 2ly, also can not fix; Described fixedly card 3 comprises handle 31, pin 32, cassette tape 33, anchorage bar 34, there is through hole two ends of cassette tape 33, be coated on the end periphery of armrest support 4, axial bars v notch v 41 is coated, described anchorage bar 34 passes the through hole at the both ends of cassette tape 33, and an end of anchorage bar 34 has nut, and the other end is articulated in the pin 32 on the end of handle 31, the end of described this handle 31 is resisted against on the cassette tape 33, and the shape of cross section of handle 31 ends is an eccentric structure simultaneously.Structure like this, the user can open fixing card 3 by pulling handle 31, and can adjust the height of handrail carriage 2 this moment, also promptly adjusts handrail, after adjustment finishes, pull handle 31, because handle 31 centers on pin 32 rotations, and the end of handle 31 is an eccentric structure, so cassette tape 33 is subjected to the increasing pressure, bar v notch v 41 can diminish, and is set in handrail carriage 2 on the armrest support 4 by jam-packed, thereby is able to fixed armrest carriage 2.So process can really realize freely adjusting height, and adjusts simple, convenient, durable in use.

Claims

1, a kind of liftable office chair handrail comprises the handrail holder, it is characterized in that described handrail holder is fixed on the handrail carriage, and the handrail carriage is set on the armrest support, and armrest support is fixed on the chair underframe; There is fixing card the end of described armrest support along circumferentially some axial bars v notch vs being arranged on the periphery of end.

2, liftable office chair handrail according to claim 1, it is characterized in that described fixedly card comprises handle, cassette tape, anchorage bar, the both ends that described anchorage bar passes cassette tape are fixed on the end of handle, described this handle end has pin and anchorage bar hinged, be resisted against on the cassette tape, be eccentric structure.