CN203446907U

CN203446907U - Handrail

Info

Publication number: CN203446907U
Application number: CN201320507339.1U
Authority: CN
Inventors: 杨理勇
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-08-13
Filing date: 2013-08-13
Publication date: 2014-02-26
Anticipated expiration: 2023-08-13

Abstract

The utility model discloses a handrail which comprises a handrail body, a supporting pipe and a base for connecting a chair back with a chair seat, wherein the upper end of the supporting pipe is connected with the handrail body; the lower end of the supporting pipe is hinged to the base; an inclined bracket is also connected between the supporting pipe and the base; and a gear adjustment mechanism is arranged in the bracket. According to the handrail, the supporting pipe for supporting the handrail body is rotatably connected with the base for connecting the chair back with the chair seat; and furthermore, locking of different positions can be realized through the gear adjustment mechanism, so that an angle of the handrail body can adapt to inclination and elevation angles of a human body, and the practicability and the comfortableness are improved.

Description

A kind of handrail

Technical field

The utility model relates to swivel chair, office chair technical field, particularly a kind of handrail for swivel chair, office chair.

Background technology

Along with growth in the living standard, furniture industry more and more highlights its importance.Chair, as the important component part of furniture, is also used as a research and development problem, infiltrates enterprise, forms gradually a huge industry.The comfort level of beautifying, how to improve chair of chair outward appearance style and these problems such as functional also put Liao enterprise in face of.Research to seat, arrives greatly furniture systematization, a little accessory to chair.Chair-function research and development are that chair is researched and developed most important part, and the comfortableness of chair is had to great meaning.

At present popular skin chair on the market, is generally comprised of backrest, handrail, seat cushion, chair pin, and this skin chair is easy to make, an outward appearance great variety of models, start to infiltrate every household.This class seat functional also more and more by demand, comprises backrest function, saddle function, handrail function.The functional main or elevating function of current common skin armrest of seat, mainly lifting handrail as shown in Figure 1 and four-point fixed armrest as shown in Figure 2, four-point handrail wherein two points is fixing on cushion, another two points are fixed on backrest, handrail, backrest, seat cushion three are relatively fixing, how to develop four-point handrail new function, how to allow handrail independent adjustable, allowing the handrail human body of more fitting, is one of current furniture industry problem that need to solve.

Utility model content

The utility model, for above-mentioned the deficiencies in the prior art, provides a kind of rotary handrail, and this handrail can rotate adjusting in the situation that chair back-rest inclination amplitude is larger, and user's arm is fitted more, has improved comfortableness.

The technical solution of the utility model is achieved in that

A kind of handrail, comprise handrail body, stay pipe and in order to connect the pedestal of the chair back, seat support, the upper end of stay pipe connects handrail body, lower end and the pedestal of stay pipe are hinged, between stay pipe and pedestal, be also connected with a support being obliquely installed, in support, be provided with gear adjusting mechanism.

As preferably, described support comprises sleeve pipe and support bar, and support bar is plugged in sleeve pipe and relative motion can occurs under external force between the two.

As preferably, described sleeve pipe, the shape of support bar are arc.Thereby make to adapt to the rotation of handrail.

As preferably, described sleeve pipe is connected with stay pipe, and described support bar is connected with pedestal.

As preferably, described sleeve pipe is connected with pedestal, and described support bar is connected with stay pipe.

As preferably, described gear adjusting mechanism comprises fixture block, slideway, described fixture block is arranged in the groove of offering on sleeve pipe sidewall, the two ends up and down of groove are also respectively equipped with the first groove, the second groove, the two ends up and down of fixture block are corresponding is respectively provided with the first card base, the second card base matching with the first groove, the second groove, and the first card base is in the first groove all the time; Installation of slide track, on support bar, and is provided with a plurality of draw-in grooves that communicate with slideway in the left side of slideway, the lower end of slideway keeps concordant with one of below draw-in groove, and the upper end of chute exceeds one of the top draw-in groove; The bottom surface of fixture block is provided with a guide pillar, guide pillar moves and snaps in corresponding draw-in groove in slideway, between fixture block right side and groove, be provided with a spring, in the middle of groove right side, be provided with a spring storage tank, one end of spring is in spring storage tank, the other end of spring props up fixture block all the time, and under the effect of spring, guide pillar remains a trend that snaps in draw-in groove.

For preventing that spring and fixture block from ejecting, and as preferably, has end cap at groove covering.

As preferably, in fixture block right side central, be provided with a projection, the other end of spring is enclosed within described projection.Can make like this spring prop up all the time fixture block, avoid spring failure.

As preferably, described pedestal integral body is L-shaped, and the lower end of stay pipe and the turning of pedestal are hinged.

Adopted design philosophy of the present utility model and the beneficial effect of technique scheme to be:

The stay pipe of the utility model supporting armrests body is rotationally connected with the pedestal that is connected the chair back, seat support, and by gear adjusting mechanism, realize the screens of diverse location, make the angle of handrail body can adapt to the elevation angle of human body, improved practicality and comfortableness.

Accompanying drawing explanation

Fig. 1 is the schematic diagram of lifting handrail in prior art;

Fig. 2 is the schematic diagram of four-point fixed armrest in prior art;

Fig. 3 is the explosive view of the utility model handrail;

Fig. 4 is the schematic diagram of handrail under initial not rollover states;

Fig. 5 is the view of handrail while turning to a certain angle;

Fig. 6 is the view of handrail while upwards turning to maximum angle.

The specific embodiment

The specific embodiment of the present utility model is as follows:

Embodiment: a kind of handrail, as shown in Fig. 3～6, comprise handrail body 1, stay pipe 2 and in order to connect the pedestal 3 of the chair back, seat support, the upper end of stay pipe 2 connects handrail body 1, the lower end of stay pipe 2 and pedestal 3 are hinged, between stay pipe 2 and pedestal 3, be also connected with a support being obliquely installed 4, in support 4, be provided with gear adjusting mechanism.

Described support 4 comprises sleeve pipe 5 and support bar 6, and described sleeve pipe 5, the shape of support bar 6 are arc, and support bar 6 is plugged in sleeve pipe 5 and relative motion can occurs under external force between the two.In the present embodiment, described sleeve pipe 5 is connected with stay pipe 2, and described support bar 6 is connected with pedestal 3.

As shown in Figure 3,4, described gear adjusting mechanism comprises fixture block 7, slideway 8, and described fixture block 7 is arranged in the groove 9 of offering on sleeve pipe 5 sidewalls, at normal mounting and use state, support 4 is obliquely installed, and fixture block 7, slideway 8 are also obliquely installed with groove 9; The two ends up and down of groove 9 are also respectively equipped with the first groove 10, the second groove 11, the two ends up and down of fixture block 7 are corresponding to be respectively provided with the first card base 12, the second card base 13, the first card bases 12 that match with the first groove 10, the second groove 11 and to be in all the time in the first groove 10; Slideway 8 is arranged on support bar 6, and in the left side of slideway 8, is provided with a plurality of draw-in grooves 14 that communicate with slideway 8, and the lower end of slideway 8 keeps concordant with one of below draw-in groove 14, and the upper end of chute 8 exceeds one of the top draw-in groove 14; The bottom surface of fixture block 7 is provided with a guide pillar 15, guide pillar 15 is in the interior motion of slideway 8 and snap in corresponding draw-in groove 14, between fixture block 7 right sides and groove 9, be provided with a spring 16, in the middle of groove 9 right sides, be provided with a spring storage tank 17, one end of spring 16 is in spring storage tank 17, and the other end of spring 16 props up fixture block 7 all the time, specifically, in fixture block 7 right side central, be provided with a projection 19, the other end of spring 16 is enclosed within described projection 19; Under the effect of spring 16, guide pillar 15 remains a trend that snaps in draw-in groove.

After installing fixture block 7 and spring 16, for preventing that it from ejecting, and has end cap 18 at groove 9 coverings.

When handrail is during in original state, as shown in Figure 3, in the draw-in groove of guide pillar 10 in below; As shown in Figure 4, when pulling and overturn handrail, support bar 6 maintains static, and sleeve pipe 5 moves upward with handrail, fixture block 7, spring 16 and guide pillar 15 also together move upward with sleeve pipe 5, due to the effect of spring 16, guide pillar 15 is moved on in another draw-in groove, when motion stops from a draw-in groove, guide pillar 15 is just stuck in corresponding draw-in groove, now, handrail remains on a fixing position and angle, and handrail can not be pressed again.

When needs reset while maybe needing handrail to adjust to a less angle or lower position, continue upwards to pull handrail, as shown in Figure 6, until guide pillar 15 departs from one of the top draw-in grooves 14 and enters into the top of slideway 8, now fixture block 7 deflects down, guide pillar 15 can not continue to move upward again, and the second card base 13 of fixture block 7 lower ends snaps in the second groove 11 of groove 9 lower ends, because the elastic force of spring 16 makes the second card base 13, keeps being in the state in the second groove 11; At this moment handrail is put down, guide pillar 15 meetings move downward along the track of slideway 8 always, until contact slideway 8 bottom, now, continuation moves to the end by sleeve pipe 5, makes the second card base 13 depart from the second grooves 11, because the elastic force of spring 16 exists always, guide pillar 15 is snapped in again in the draw-in groove of below, now just get back to original state.

Claims

1. a handrail, it is characterized in that: comprise handrail body, stay pipe and in order to connect the pedestal of the chair back, seat support, the upper end of stay pipe connects handrail body, lower end and the pedestal of stay pipe are hinged, between stay pipe and pedestal, be also connected with a support being obliquely installed, in support, be provided with gear adjusting mechanism.

2. a kind of handrail according to claim 1, is characterized in that: described support comprises sleeve pipe and support bar, and support bar is plugged in sleeve pipe and relative motion can occurs under external force between the two.

3. a kind of handrail according to claim 2, is characterized in that: described sleeve pipe, the shape of support bar are arc.

4. a kind of handrail according to claim 2, is characterized in that: described sleeve pipe is connected with stay pipe, and described support bar is connected with pedestal.

5. a kind of handrail according to claim 2, is characterized in that: described sleeve pipe is connected with pedestal, and described support bar is connected with stay pipe.

6. according to a kind of handrail described in claim 2 or 4, it is characterized in that: described gear adjusting mechanism comprises fixture block, slideway, described fixture block is arranged in the groove of offering on sleeve pipe sidewall, the two ends up and down of groove are also respectively equipped with the first groove, the second groove, the two ends up and down of fixture block are corresponding is respectively provided with the first card base, the second card base matching with the first groove, the second groove, and the first card base is in the first groove all the time; Installation of slide track, on support bar, and is provided with a plurality of draw-in grooves that communicate with slideway in the left side of slideway, the lower end of slideway keeps concordant with one of below draw-in groove, and the upper end of chute exceeds one of the top draw-in groove; The bottom surface of fixture block is provided with a guide pillar, guide pillar moves and snaps in corresponding draw-in groove in slideway, between fixture block right side and groove, be provided with a spring, in the middle of groove right side, be provided with a spring storage tank, one end of spring is in spring storage tank, the other end of spring props up fixture block all the time, and under the effect of spring, guide pillar remains a trend that snaps in draw-in groove.

7. a kind of handrail according to claim 6, is characterized in that: at groove covering, have end cap.

8. a kind of handrail according to claim 6, is characterized in that: in fixture block right side central, be provided with a projection, the other end of spring is enclosed within described projection.

9. a kind of handrail according to claim 1, is characterized in that: described pedestal integral body is L-shaped, and the lower end of stay pipe and the turning of pedestal are hinged.