CN2617249Y

CN2617249Y - Positioning structure of 360 deg.C rotary armrest

Info

Publication number: CN2617249Y
Application number: CNU032248113U
Authority: CN
Inventors: 蔡轩进
Original assignee: YUQIN PLASTIC ARTICLE CO Ltd ZHONGSHAN CITY
Current assignee: YUQIN PLASTIC ARTICLE CO Ltd ZHONGSHAN CITY
Priority date: 2003-04-01
Filing date: 2003-04-01
Publication date: 2004-05-26
Anticipated expiration: 2013-04-01

Abstract

The utility model discloses a structure of the handrail which can rotate 360 degrees and perform location, comprises a support element used to be connected with the handrail and a fixed component used to be connected with the seat cushion and is characterized in that a plurality of lug bosses are distributed on the surface of the bottom of the support element. A plurality of locating recesses for the convex to be embedded in are correspondently distributed on the surface of the connection between the fixed component and the support element. A guiding pole is arranged in the middle of the surface of the bottom of the support element. The guiding pole passes through the support element and then is socketed with a spring, at last a limit stop is arranged on the bottom of the guiding pole, which makes the spring ends between the support element and the limit stop and tightly pulls the support element, thereby the handrail can rotate and locate 360 degrees randomly if the support element is rotated with proper force to make the convex leave the locating recess or be embedded in the locating recess again.

Description

But the structure of handrail 360 deg rotation location

[technical field]

The utility model relates to a kind of handrail rotary positioning structure, especially a kind of Chair armrest rotary positioning structure.

[background technology]

The handrail of general chair tool roughly can be divided into two parts, one provides the armrest part that occupant's arm leans on, and in order to fixing support armrest part and with the bracing frame of seat cushion secure bond, very many handrails have outside the structure that can adjust height simultaneously, swing or the rotation that can adjust handrail are also arranged, such as Taiwan patent announcement the 457881st, 422032,395213,393960,376716,350259,345915,306226,303638,285867 and No. 281896 etc. patent, it promptly is a left side that makes the armrest part of bracing frame upper end can do a smaller angle, right rotation, though can allow occupant's arm do more natural, comfortable dependence, but owing to can provide the angle of rotation limited, cause to do bigger variation, adapt to the adjustment of the more wide-angle that difference must ask: so have such as Taiwan patent announcement the 422033rd, patents such as 382242 and No. 363373, the more adjustment structure of wide-angle then can be provided, except Taiwan patent announcement the 382242nd and No. 363373 patents, structure is adjusted in itself and aforesaid handrail rotation, all be to be located between armrest part and the bracing frame, and its structure is all complicated in the extreme, seems difficult and cause in manufacturing and the assembling, and cost is comparatively high again; Though and non-being located between armrest part and the bracing frame of structure that Taiwan patent announcement the 382242nd and No. 363373 patent handrails rotate, and its structure is comparatively simple again, but its adjustment mode or localization method, inconvenience or even can't locate in the extreme again.In addition, can do in addition wide-angle more or even can do the handrail of the rotation of 360 deg, such as Taiwan patent announcement the 333010th, 323481, patents such as 314752 and No. 313801, but its structure that handrail can be rotated also is to be located between armrest part and the bracing frame, and its structure is still too complicated, and the structure of wherein announcing No. 323481 patent is no doubt comparatively simple, but it is because of being located at an end of armrest part, so can't remain in the side of seat cushion after causing the handrail rotation, and can't offer occupant's the suitable dependence of arm.

[utility model content]

So,, rotate the structure of locating but the purpose of this utility model provides a kind of handrail 360 deg that allows rotating handrail can use simpler structure, more shirtsleeve operation gimmick in order to address the above problem.

But the utility model is achieved in that the structure of a kind of handrail 360 deg rotation location, comprise in order to support component and reaching in order to be incorporated into the retaining element on the seat cushion in conjunction with handrail, it is characterized in that: the lower end surface annular distribution of support component has several lug bosses, then corresponding annular distribution has the location depression that can embed for lug boss on the end face of retaining element and support component combination, and then stretch in the central authorities of support component lower end surface and to establish a guide pillar, this guide pillar passes behind the retaining element and is inserted in a spring, fix a catch in the end of guide pillar again, both ends of the spring is only pushed up respectively on retaining element and baffle plate, and support component is strained at downwards.

Further improvement as such scheme, it is characterized in that: the lower end surface of support component promptly is the end face of set bottom, its lower end, be provided with the upper bearing surface that inserts for the bottom of support component on retaining element and end face that support component combines, described location depression is located on the bottom surface of upper bearing surface.

Such scheme further is improved to: the bottom surface of retaining element is coated with bottom for the position that guide pillar passes.

The utility model is divided into the handrail bracing frame in order in conjunction with the support component of handrail and in order to be incorporated into the retaining element on the seat cushion, the lower end surface annular distribution of support component has several lug bosses, then corresponding annular distribution has the location depression that can embed for lug boss on the end face of retaining element and support component combination, and then stretch in the central authorities of support component lower end surface and to establish a guide pillar, this guide pillar passes behind the retaining element and is inserted in a spring, fix a catch in the end of guide pillar again, both ends of the spring is only pushed up respectively on retaining element and baffle plate, and support component is strained at downwards.Therefore as long as with suitable strength rotational support member, make lug boss detach the location depression, or lug boss is embedded in the depression of location, and then make support component can do 360 deg to rotate arbitrarily and the location, just can make handrail do any rotation and the location of 360 deg.

[description of drawings]

Fig. 1 is a schematic appearance of the present utility model;

Fig. 2 is a perspective exploded view of the present utility model;

Fig. 3 is a cutaway view of the present utility model;

Fig. 4 is an action schematic diagram of the present utility model;

Fig. 5 is the operation chart of the utility model handrail.

[specific embodiment]

See also Fig. 1, Fig. 2 and Fig. 3, the utility model mainly comprises

support component

1 and 2 two parts of retaining element, wherein: support component 1 upper end is and the handrail secure bond, a bottom 11 is then established in the lower end, and the end face ring-type of bottom 11 is distributed with several lug bosses 12, then again in the bottom 11 end face central authorities stretch and establish a guide pillar 13, establish a screwed hole 14 again at guide pillar 13 end faces again.

One end of retaining element 2 is provided with the board with the seat cushion secure bond, the other end then is provided with the joint portion that combines with support component, and this top, joint portion is arranged with a upper bearing surface 21, and the bottom surface of upper bearing surface 21 annular distribution have several the location depression 22, and being provided with guide hole 23 in central authorities, the bottom surface is provided with a lower supporting hole 24 and a concave surface 25 below the joint portion again.

Therefore, make the guide pillar 13 of support component 1 pass through the guide hole 23 of retaining element 2, and the bottom is inserted in the upper bearing surface 21, and each lug boss 12 is embedded in the depression 22 of location, and then the spring 3 of in lower supporting hole 24, packing into, set firmly a catch 4 in guide pillar 13 ends with screw 5, spring 3 two ends are pushed up respectively only on lower supporting hole and baffle plate, by spring 3 support component 1 is maintained by tightly drop-down state, at last establish the bottom 6 that a top has flange 61 again, make bottom 6 can be covered in the concave surface 25 of retaining element 2 bottom surfaces.So when the user needs only with the continuous rotational support member 1 of suitable strength, just can be shown in the 4th figure, make lug boss 12 detach location depression 22, or lug boss 12 is embedded in the depressions 22 of location, and then make support component 1 can do 360 deg to rotate arbitrarily and the location, even handrail can be done any adjustment of different angles, promptly shown in the 5th figure, make and originally face upward the handrail 7 that inclines after a while, can be transformed into the state that leans forward a little, to adapt to the requirement that difference must the person of asking.

Claims

1. but a handrail 360 deg rotates the structure of locating, comprise in order to support component and reaching in order to be incorporated into the retaining element on the seat cushion in conjunction with handrail, it is characterized in that: the lower end surface annular distribution of support component has several lug bosses, then corresponding annular distribution has the location depression that can embed for lug boss on the end face of retaining element and support component combination, and then stretch in the central authorities of support component lower end surface and to establish a guide pillar, this guide pillar passes behind the retaining element and is inserted in a spring, fix a catch in the end of guide pillar again, both ends of the spring is only pushed up respectively on retaining element and baffle plate, and support component is strained at downwards.

2. but the structure of handrail 360 deg rotation according to claim 1 location, it is characterized in that: the lower end surface of support component promptly is the end face of set bottom, its lower end, be provided with the upper bearing surface that inserts for the bottom of support component on retaining element and end face that support component combines, described location depression is located on the bottom surface of upper bearing surface.

3, but handrail 360 deg according to claim 1 rotates the structure of location, it is characterized in that: the bottom surface of retaining element is coated with bottom for the position that guide pillar passes.