CN201079174Y

CN201079174Y - Adjustable height handrail

Info

Publication number: CN201079174Y
Application number: CNU2007200582686U
Authority: CN
Inventors: 刘月华
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-10-09
Filing date: 2007-10-09
Publication date: 2008-07-02
Anticipated expiration: 2017-10-09

Abstract

The utility model belongs to the furniture manufacturing technical field, which relates to a chair armrest, in particular to an armrest, and the height of which is adjustable. The armrest comprises a braced seat and an elbow supporting pad, the upper part of the braced seat is of a hollow pipe structure, and the cavity of the braced seat is internally provided with a height adjusting device connected with the elbow supporting pad. The height adjusting device comprises a position-guide device arranged and fixed in the cavity of the braced seat, a slide bar arranged on the elbow braced pad and a positioning and locking switch composed of a pull rod, a stop block, a plate spring and a torsion spring. Adopting the structure, the armrest can very conveniently adjust the height of the armrest.

Description

A kind of handrail of adjustment height

Technical field

The utility model belongs to furniture and makes the field, relates to a kind of armrest, is specifically related to a kind of handrail of adjustment height.

Background technology

Present armrest, generally all be to be fixedly installed on the seat both sides, handrail height is unadjustable, in the actual life, because people's body bone difference is bigger, when the seat of this structure may make part user hand be shelved on the handrail, feel uncomfortable, therefore, producer is when producing, sometimes need out several molds, the handrail of making several different sizes comes, and this has increased production cost undoubtedly.

Summary of the invention

It is a kind of Height Adjustable that the purpose of this utility model is to provide, and makes when the people of consubstantiality bone is not seated, and hand can both be placed on the armrest of comfortable position.

The purpose of this utility model is achieved in that a kind of handrail of adjustment height, comprises supporting seat, ancon supporting pad, and described supporting seat top is tubular structure, is provided with an arrangement for adjusting height in the cavity and is connected with the ancon supporting pad.

Described arrangement for adjusting height comprises the positioning and guiding seat that is fixed in the supporting seat cavity, the positioning and locking switch that is installed in the slide bar on the ancon supporting pad and mainly is made up of pull bar, screens piece, leaf spring, extension spring, wherein: offer the slot that inserts for slide bar on the positioning and guiding seat, the slot inwall has the tooth bar that is arranged above and below; The contiguous block that installs and fixes with the ancon supporting pad that described slide bar comprises guide rail with direction recess and is located at the guide rail upper end is provided with the screwed hole that pull bar is installed at the upper end of direction recess inwall; Described pull bar upper end has the shifting block of a bending, and the screwed hole place that is positioned at direction recess offers the strip groove, and a screw rod passes the strip groove and is fixed on the screwed hole, and the middle part has the arc recess of a bending; Offer the opening of ccontaining this arc recess on the inwall of described direction recess middle part, the two side of opening part is provided with Connection Block, and the screens piece is installed on this Connection Block, and by the leaf spring that is located on the pull bar pin of its screens piece is resisted against on the heavy stand of tooth bar; The two ends of described extension spring are cylinder lever connecting rod lower end and slide bar lower end respectively, and makes pull bar be positioned at low level by its pulling force, and the arc recess is embedded into the opening part of direction recess.

Described pull bar bottom is provided with the hook that connects extension spring, and the slide bar lower end is provided with the fixedly connecting screw rod of the extension spring other end.

Described slide bar upper end is provided with the low level limiting stand.

The shifting block place that the described supporting seat outside is positioned at pull bar offers window, and window is provided with one handle and connects this shifting block.

Good effect of the present utility model: between supporting seat and ancon supporting pad, be provided with arrangement for adjusting height, just can regulate the height of ancon supporting pad by arrangement for adjusting height, use to reach the people who is suitable for various not consubstantiality bones, user's hand an ancient unit of weight can be in a kind of more comfortable placement state.

Description of drawings

Fig. 1 is the handrail stereogram;

Fig. 2 is the supporting seat stereogram;

Fig. 3 is the arrangement for adjusting height stereogram;

Fig. 4 is the arrangement for adjusting height stereogram of leaf spring;

Fig. 5 is a positioning and guiding seat stereogram;

Fig. 6 is a screens piece stereogram;

Fig. 7 is the arrangement for adjusting height cutaway view.

The specific embodiment

Be described in further detail below in conjunction with the handrail specific embodiment of accompanying drawing the utility model adjustment height.

Shown in Fig. 1-2: the handrail of adjustment height described in the utility model, mainly to form by supporting seat 1, ancon supporting pad 2, supporting seat 1 top is tubular structure, is provided with an arrangement for adjusting height in the cavity 10 and is connected with ancon supporting pad 2.Fig. 3, Fig. 4, Fig. 7 are the structural representation of arrangement for adjusting height, comprise the positioning and guiding seat 3 that is fixed in the supporting seat cavity 10, the positioning and locking switch that is installed in the slide bar 4 on the ancon supporting pad 2 and mainly is made up of pull bar 5, screens piece 6, leaf spring 7, extension spring 8.Wherein: positioning and guiding seat 3 offers the slot 30 that inserts for slide bar 4, and slot 30 inwalls have tooth bar 31 (see figure 5)s that are arranged above and below; The contiguous block 42 that installs and fixes with ancon supporting pad 2 that slide bar 4 comprises the guide rail 41 with direction recess 40 and is located at guide rail 41 upper ends, be provided with the screwed hole that pull bar 5 is installed at the upper end of direction recess 40 inwall, draw a side of touching to be provided with low level limiting stand 47 in slide bar 4 upper ends and positioning and guiding seat 3; Pull bar 5 upper ends have the shifting block 50 of a bending, and the screwed hole place that is positioned at direction recess 40 offers strip groove 51, one screw rods 90 and passes strip groove 51 and be fixed on the screwed hole, and the middle part has the arc recess 52 of a bending; Offer the opening 44 of ccontaining this arc recess 52 on the described direction recess 40 middle part inwalls, the two side at these opening 44 places is provided with Connection Block 45, screens piece 6 is installed on this Connection Block 45, and by being located at leaf spring 7 on the pull bar 5 pin 60 of its screens piece 6 is resisted against on the heavy stand 32 of tooth bar 31 (screens piece 6 concrete structures are seen Fig. 6); The two ends of described extension spring 8 are cylinder lever connecting rod 5 lower ends and slide bar 4 lower ends respectively, and make pull bar 5 be positioned at low level by its pulling force, arc recess 52 is embedded into opening 44 places of direction recess 40, for the ease of installing, be provided with hook 54 in pull bar 5 bottoms, slide bar 4 lower ends are provided with connecting screw rod 46, and the two ends of extension spring 8 are separately fixed on hook 54 and the connecting screw rod 46.Because the pull bar shifting block 50 that plays the driving effect is positioned at the cavity 10 of supporting seat 1, be not easy to highly regulate, therefore, on the sidewall of supporting seat 1, offer window 11, window 11 is provided with one handle 12 and connects this shifting block 50.

During the assembling handrail, at first the upper end from positioning and guiding seat 3, the lower end of slide bar 4 is inserted in the slot 30, then pull bar 5 usefulness screw rods 90 are fixed in the direction recess 40, screens piece 6 is installed on the Connection Block 45, the pin 60 of screens piece 6 is fixed on leaf spring 7 on the pull bar 5 by screw 91 then towards tooth bar 31 1 sides, and the stress by leaf spring 7 tightly is resisted against the pin 60 of screens piece 6 on the heavy stand 32 of tooth bar 31, extension spring 8 is installed, arrangement for adjusting height has just fixed again.At last the arrangement for adjusting height screw thread is installed in the cavity 10 of supporting seat 1, handle 12 is plugged on the shifting block 50 and ancon supporting pad 2 screw threads for fastening is connected on the contiguous block 42 of slide bar 4 from window 11.Operation principle is as follows, when needing to regulate handrail height, handle 12 is upwards pushed away, pull bar 5 is upwards moved, the low level of arc recess 52 slowly breaks away from opening 44 places and is resisted against on direction recess 40 front bulkheads, pull bar 5 is moved forward, and promote screens piece 6 and move forward, pin 60 is separated with the heavy stand 32 of tooth bar 31, at this moment, the positioning and locking switch is in released state, ancon supporting pad 2 can freedom stretch up or down, handrail is adjusted to the height that is fit to own hand placement, after regulating, unclamp the hand of pushing handle 12, extension spring 8 is withdrawn into the bottom with pull bar 5, and simultaneously, screens piece 6 is under the stress effect of leaf spring 7, pin 60 once more with heavy stand 32 engagement of tooth bar 31, the positioning and locking switch is in locking state.In order to control suitable adjustment stroke of handrail and prevent that slide bar 4 from deviating from from positioning and guiding seat 3, connecting screw rod 46 extends a segment distance after passing slide bar 4, when handrail is adjusted to highest order, the front end of connecting screw rod 46 is resisted against the upper wall of heavy stand 32 bottom, slide bar 4 can't be moved up again, 47 of low level limiting stands are to abut to when slide bar 4 moves to low level on the limit, upper end of positioning and guiding seat 3, it can't be moved down again, thereby be implemented in stroke limit.Adopt the handrail of this structure, regulate highly very convenient, quick.

Claims

1. the handrail of an adjustment height comprises supporting seat, ancon supporting pad, it is characterized in that: described supporting seat top is tubular structure, is provided with an arrangement for adjusting height in the cavity and is connected with the ancon supporting pad.

2. the handrail of adjustment height according to claim 1, it is characterized in that: described arrangement for adjusting height comprises the positioning and guiding seat that is fixed in the supporting seat cavity, the positioning and locking switch that is installed in the slide bar on the ancon supporting pad and mainly is made up of pull bar, screens piece, leaf spring, extension spring, wherein: offer the slot that inserts for slide bar on the positioning and guiding seat, the slot inwall has the tooth bar that is arranged above and below; The contiguous block that installs and fixes with the ancon supporting pad that described slide bar comprises guide rail with direction recess and is located at the guide rail upper end is provided with the screwed hole that pull bar is installed at the upper end of direction recess inwall; Described pull bar upper end has the shifting block of a bending, and the screwed hole place that is positioned at direction recess offers the strip groove, and a screw rod passes the strip groove and is fixed on the screwed hole, and the middle part has the arc recess of a bending; Offer the opening of ccontaining this arc recess on the inwall of described direction recess middle part, the two side of opening part is provided with Connection Block, and the screens piece is installed on this Connection Block, and by the leaf spring that is located on the pull bar pin of its screens piece is resisted against on the heavy stand of tooth bar; The two ends of described extension spring are cylinder lever connecting rod lower end and slide bar lower end respectively, and makes pull bar be positioned at low level by its pulling force, and the arc recess is embedded into the opening part of direction recess.

3. the handrail of adjustment height according to claim 2 is characterized in that: described pull bar bottom is provided with the hook that connects extension spring, and the slide bar lower end is provided with the fixedly connecting screw rod of the extension spring other end.

4. the handrail of adjustment height according to claim 2 is characterized in that: be provided with the low level limiting stand on the described slide bar.

5. the handrail of adjustment height according to claim 1 and 2 is characterized in that: the shifting block place that the described supporting seat outside is positioned at pull bar offers window, and window is provided with one handle and connects this shifting block.