CN200944992Y

CN200944992Y - High-low-position regulation mechanism for chair armrest

Info

Publication number: CN200944992Y
Application number: CNU200620123188XU
Authority: CN
Inventors: 李清阳
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-08-17
Filing date: 2006-08-17
Publication date: 2007-09-12
Anticipated expiration: 2016-08-17

Abstract

The utility model is a height adjusting device of chair armrest and comprises an external sleeve, a tube seat, a long bar bracket, a long piece body, a fixing plate, a long guide plate, a choke block, a guide block and a press block. The utility model is characterized in that: the upper part of the long piece body is provided with a rectangular groove whose upper head face takes the shape of an inclined plane, the upper part of the long piece bar and the long piece body is fit with a guide block which is provided with a guide groove that is horizontally through and a press block runs through the guide groove and the rectangular groove of the long piece body and that can be pressed from outside to move horizontally and then reset. The press block is provided with an inclined roadway and is upwardly attached on the upper inclined plane of the rectangular groove of the long piece body. The utility model replaces the operational mode of pulling the long piece body upward through the handle which is positioned at the upper part of the long piece body and provides consumers with more choices to avoid the shortage in appearance of providing a handle at the upper part of the long piece body.

Description

Armrest of seat height guiding mechanism

Technical field

The utility model provides a kind of armrest of seat height guiding mechanism, especially the relationship in a mutual action on two inclined-planes about referring to be between the inclined-plane of a kind of ramp that relies on a briquetting and a lengthy motion picture body, make the horizontal cross displacement of briquetting convert to the lengthy motion picture body up and down directly to displacement, rely on lengthy motion picture body upper end leader with the operator scheme person of pulling lengthy motion picture body to replace and to simplify existing person to top offset.

Background technology

The height guiding mechanism of present armrest of seat has multiple different designs, mostly be to make different designs at aspects such as the number of the assembling kenel of mechanism or member or operator schemes, produce otherness between phase energy and the background technology, or promote the extra effect of using as reducing cost to increase competitiveness etc.; And this case utility model designer once designed a utility model " office chair handrail high-low regulating " and obtained the Chinese utility model patent patent No. 01219095.0 and U.S. patent of invention US 6 respectively between calendar year 2001,336,680, and described case structure mainly is by an outer sleeve, one base body, one rectangular, one lengthy motion picture body, one stator, an one long guide card and a fixture block constitute, the upper end of wherein said lengthy motion picture body is provided with one and protrudes handle, and rely on the described handle of pulling to make the operator scheme of lengthy motion picture body to top offset, adjust operation with the height that carries out handrail.

But, the operator scheme that existing pull handle makes progress also can't satisfy the needs of the various selection of user (consumer), and the harmony that the leader also hinders outward appearance is protruded in lengthy motion picture body upper end, by being, the utility model design talent utilizes the technology of above-mentioned utility model patent number 01219095.0 again and designs this case again.

Summary of the invention

Main purpose of the present utility model is to be to provide a kind of armrest of seat height guiding mechanism, the relationship in a mutual action on two inclined-planes about being between the ramp that can rely on briquetting and the inclined-plane of lengthy motion picture body, make the horizontal cross displacement of briquetting convert to the lengthy motion picture body up and down directly to displacement, rely on lengthy motion picture body upper end leader with the operator scheme of pulling lengthy motion picture body to replace and to simplify prior art, can variously select for the consumer to top offset.

For achieving the above object, the technical solution adopted in the utility model is:

A kind of armrest of seat height guiding mechanism comprises an outer sleeve, a base body, one rectangular, a lengthy motion picture body, a stator, a long guide card, a fixture block, a guide block and a briquetting, and wherein, the bottom of described outer sleeve is to lock on a underframe; Described base body is to be fixed in the outer sleeve inner upper end, establishes a chute and its medial surface in it and is provided with several equidistant straight locating holes to arrangement; Described rectangular is to be set in the chute of base body, and its top links an armrest support, forms a groove in the middle of it; Described lengthy motion picture body is provided in a side of in the groove, it is established a lug near upper end and puts for colluding on the spring, below lug, establish always to elongated hole, below elongated hole, establish a projection, described elongated hole is corresponding to a rectangular last axis hole, and described lengthy motion picture body is a halt and sliding up and down in rectangular groove with the upper and lower side of elongated hole; Described stator is to be positioned at the external side of lengthy motion picture and locking on rectangular axis hole, is convexly equipped with a lug on it and colludes for the lower end of described spring and put, and described lengthy motion picture body relies on the spring restoring force and automatically resets behind top offset; Described long guide card is to be positioned at the stator outside and locking on rectangular axis hole, which is provided with one with the lengthy motion picture body on the reverse projection of projection; Described fixture block is to be horizontally installed on long guide card lower end, and is horizontally through rectangular last one and wears groove and its head end snaps in the locating hole of base body chute medial surface;

And it is characterized in that: establish a rectangle hole slot in the upper end of described lengthy motion picture body, and the upper surface of rectangle hole slot is a gradually inclined downward of an ecto-entad; Establish the rectangle hole slot of a rectangle hole slot again with corresponding lengthy motion picture body upper end in described rectangular upper end; Again rectangular with the peripheral sheathed guide block in the upper end of lengthy motion picture body, the plane of structure of described guide block is provided with in a hole slot that vertically connects is embedded in the lengthy motion picture body for rectangular, its side is provided with the guide groove of a lateral direction penetrating; And described briquetting is to comprise that a level and smooth press surface cooperates the long tip of the guide groove shape of guide block with one, and the described long tip be provided with a ramp thereon end face and an introversion and extroversion block groove on its tip body, be located in the guide groove and the long tip of described briquetting is an ecto-entad, and pass the rectangle hole slot of lengthy motion picture body and the rectangle hole slot of rectangular upper end simultaneously; Plug a dowel again on the guide block with in the block groove that vertically is located in the long tip, the upwards corresponding ramp that is fitted in lengthy motion picture body rectangle hole slot of the ramp of described briquetting.

Described guide block is one-body molded body or the assembly that plastics penetrate.

Described briquetting is the one-body molded body that plastics penetrate.

Compared with prior art, adopt the advantage that the utlity model has of technique scheme to be:

Can rely on the relationship in a mutual action that is two inclined-planes between the ramp of the ramp of briquetting and lengthy motion picture body up and down, make the horizontal cross displacement of briquetting convert to the lengthy motion picture body up and down directly to displacement, rely on lengthy motion picture body upper end leader with the operator scheme of pulling lengthy motion picture body to replace and to simplify prior art, for the various selection of consumer and avoid lengthy motion picture body upper end to be provided with one protruding handle and hinder outward appearance to top offset.

Description of drawings

Fig. 1 is the schematic perspective view of the Chinese utility model patent patent No. 01219095.0;

Fig. 2 is the broken section schematic perspective view of Fig. 1;

Fig. 3 is the schematic perspective view of the utility model one embodiment;

Fig. 4 is the partial exploded view of Fig. 3;

Fig. 5 is the side cross-sectional schematic of Fig. 3 embodiment before height is adjusted;

Fig. 6 is the side cross-sectional schematic of Fig. 5 in height is adjusted;

Fig. 7 is that Fig. 5 is in the adjusted side of height cross-sectional schematic.

Description of reference numerals: 10-outer sleeve; The 11-underframe; 20-base body; The 21-chute; The 22-locating hole; Rectangular of 30-; The 31-armrest support; The protruding axis hole of 32-; 33-wears groove; The 34-groove; The outer sheathing of 35-; The 36-hole slot; 40-lengthy motion picture body; The 41-handle; The 42-lug; The 43-spring; The 44-elongated hole; The 45-projection; The 46-hole slot; The 47-inclined-plane; The 50-stator; The 51-lug; The long guide card of 60-; The 61-projection; The 70-fixture block; The 71-caulking groove; The 72-head end; The 80-guide block; The 81-hole slot; The 82-guide groove; The 90-briquetting; The 91-press surface; The long tip of 92-; The 93-ramp; 94-block groove.

The specific embodiment

For making the utility model clear and definite more full and accurate, enumerate preferred embodiment now and cooperate following diagram, details are as follows with structure of the present utility model and technical characterictic thereof:

With reference to figure 1,2, its " office chair handrail high-low regulating " (the Chinese utility model patent ZL patent No. 01219095.0 or US 6 that be a kind of, 336,680 U.S.'s patents of invention) schematic perspective view and partial cross-sectional perspective view, please also refer to shown in Figure 5, the general structure of described armrest of seat adjustable bridge structure is as follows: it is to utilize an outer sleeve (sleeve) 10, one base body (tubular member) 20, one rectangular (slider) 30, one lengthy motion picture body (long plate) 40, one stator (fixing plate) 50, one long guide card (guiding plate), 60 and one fixture block (retaining block) 70 constitutes, wherein, described outer sleeve 10 bottoms are that locking is on a underframe 11, for extensible locking (not shown) below seat support, the inner upper end of outer sleeve 10 is overlapped a solid base body 20 again, be provided with a chute 21 in the described base body 20, chute 21 medial surfaces are provided with several equidistant straight locating holes 22 to arrangement; In chute 21 sheathed one vertical rectangular 30 again, form groove 34 in the middle of rectangular 30, its top links an armrest support 31 (body also can be formed in one), supplies to assemble with an armrest body (not shown), and can set up an outer sheathing 35 to modify overall appearance; At rectangular 30 lateral border one lengthy motion picture body 40 is set again, and the upper end of described lengthy motion picture body 40 outwards convexes with leader 41, can carry or discharge by outside simple and easy upwards the drawing of outer sheathing 35 for staff, being convexly equipped with a lug 42 ammunition feed springs 43 upper ends below handle 41 colludes and puts, below lug 42, establish always to elongated hole 44, below elongated hole 44, then establish a projection 45; Lengthy motion picture body 40 is to utilize elongated hole 44 corresponding to a protruding axis hole 32 of rectangular 30 again, and at its outside locking one stator 50 and a long guide card 60, stator 50 and long guide card 60 are fixed on rectangular 30, are halt and can sliding up and down in rectangular 30 intermediate groove 34 but make lengthy motion picture body 40 with the upper and lower side of elongated hole 44; The lower end that is convexly equipped with a lug 51 ammunition feed springs 43 again on stator 50 is colluded and is put, and after lengthy motion picture body 40 upwards being drawn carry the back and discharging, can rely on spring 43 elastic force and automatically reset; Right position place is provided with projectioies 61 reverse with projection 45 on the long again guide card 60, and long guide card 60 lower ends then connect a horizontal fixture block 70, and it is interior and connect that it can utilize long guide card 60 lower ends to pack into the caulking groove 71 of fixture block 70 tail ends; And fixture block 70 is to be horizontally through one on rectangular 30 to wear groove 33, and its head end 72 can be protruded in the locating hole 22 of chute 21 medial surfaces.Rely on said structure, (lengthy motion picture body 40 is not to top offset when staff does not draw carrying handle hand 41 upwards, can contrast shown in Figure 5), projection 45 on the lengthy motion picture body 40 is not to top offset, cause the projection 61 that does not contact on the long guide card 60, make the lower end of long guide card 60 still keep former upright position, also make fixture block 70 still keep fastening state with a locating hole 22; And desire is when adjusting height of armrests, then can draw carrying handle hand 41 upwards at arm rest, make upwards elastic displacement (spring 43 stretches simultaneously) of lengthy motion picture body 40, cause projection 45 projectioies 61 that upwards contact on the long guide card 60, and the outside perk in the lower end that makes long guide card 60 and leave former upright position, make fixture block 70 outwards break away from former locating hole 22 (can contrast shown in Figure 6), rectangular 30 does not promptly have any block card point again in chute 21 at this moment, and can slide up and down displacement to adjust height, when handrail adjusted to a new high degree, decontrol handle 41, make lengthy motion picture body 40 rely on the restoring force of spring 43 and reset, make projection 45 break away from the projection 61 of long guide card 60 downwards, fixture block 70 can automatically reset by means of long guide card 60 elasticity own and be fastened in the new locating hole 22, finishes the adjustment action of handrail height.

With reference to figure 3, Fig. 4, Fig. 5, the utility model is to utilize above-mentioned " office chair handrail high-low regulating " (the Chinese utility model patent ZL patent No. 01219095.0 or US 6,336,680 U.S.'s patents of invention) general structure and being improved, so the utility model also comprises main members such as an

outer sleeve

10,20, one rectangular 30 of a base body, a lengthy motion picture body 40, a stator 50, one long guide card 60 and a fixture block 70, and the structure of each main member is identical substantially with the counterpart member of assembling kenel and described " office chair handrail high-low regulating ".

Of the present utility model being characterised in that: establish a rectangle hole slot 46 in the upper end of lengthy motion picture body 40, the handle 41 that lengthy motion picture body 40 upper ends outwards are convexly equipped with in described to replace " office chair handrail high-low regulating ", and the upper surface of rectangle hole slot 46 is a gradually inclined downward 47 of an ecto-entad; A rectangle hole slot 36 is established with the set rectangle hole slot 46 in corresponding lengthy motion picture body 40 upper ends in rectangular again 30 upper end; Again at rectangular the 30 peripheral sheathed guide block 80 in the upper end with lengthy motion picture body 40, described guide block 80 can be one-body molded body or the assembly that plastics penetrate, the about center position of its plane of structure is provided with a center hole slot that vertically connects 81 and sets wherein with lengthy motion picture body 40 for rectangular 30, and the about center position of its side plane of structure is provided with the guide groove 82 of a lateral direction penetrating again; And briquetting 90 can be the one-body molded body that plastics penetrate, and it comprises that a level and smooth press surface 91 cooperates the long tip 92 of guide groove 82 shapes with one, and the described long tip 92 be provided with a ramp 93 thereon end face and an introversion and extroversion block groove 94 on its tip body; And but the long tip 92 ecto-entads of briquetting 90 are located in the guide groove 82, and pass the rectangle hole slot 46 of lengthy motion picture body 40 and the rectangle hole slot 36 of rectangular 30 upper end simultaneously, make the long tip 92 can be in horizontal cross displacement in guide groove 82, rectangle hole slot 46 and the rectangle hole slot 36; Can plug a dowel 83 again on the guide block 80 with in the block groove 94 that vertically is located in the long tip 92, defining the outer dead point and the inner dead point of briquetting 90 replacement course in guide groove 82, and make the upwards corresponding ramp 47 that is fitted in lengthy motion picture body 40 rectangle hole slots 46 of ramp 93 of briquetting 90; (dowel 83 is positioned at end within the block groove 94) as shown in Figure 5 when the outer dead point of briquetting 90 in replacement course again, briquetting 90 is not pressed (or being released) and rests on original position at this moment, and the ramp 47 of lengthy motion picture body 40 rectangle hole slots 46 is be fitted in ramp 93 the next, makes lengthy motion picture body 40 not to top offset; (dowel 83 is positioned at the outer end of block groove 94) as shown in Figure 6 during stop within replacement course and when briquetting 90, this moment, briquetting 90 was pressed and to intrinsic displacement, and the ramp 47 of lengthy motion picture body 40 rectangle hole slots 46 is be fitted in ramp 93 upper, make lengthy motion picture body 40 to top offset, and make spring 43 be stretched condition; And if the inside pressing force of briquetting 90 disappears shown in Fig. 5,7, then lengthy motion picture body 40 can rely on the elastic restoring force of spring 43 and reset downwards automatically, and forces briquetting 90 outwards to return original position by means of the ramp 93 of inclined-plane 47 compressing briquettings 90.

During as shown in Figure 5 handrail height of the utility model desire adjustment, then can make by pushing described press surface 91 outward briquetting 90 to intrinsic displacement shown in the arrow A of Fig. 6, this moment, lengthy motion picture body 40 stretched simultaneously to top offset and spring 43, the projection 45 that makes lengthy motion picture body 40 contacts the projection 61 on the long guide card 60 and makes the outside perk in lower end of long guide card 60 and leave former upright position, fixture block 70 can break away from former locating hole 22, can draw/promote this moment rectangular 30 sliding up and down displacement in the chute 21 to adjust height shown in the arrow B of Fig. 6 simultaneously; When handrail adjusted to a new high degree as shown in Figure 7, discharge briquetting 90, lengthy motion picture body 40 can rely on spring 43 restoring forces and homing, make projection 45 break away from the projection 61 of long guide card 60 downwards, fixture block 70 can automatically reset by means of long guide card 60 elasticity own and be fastened in the new locating hole 22, finishes the adjustment action of handrail height.Change speech, when briquetting 90 is not pressed or pressing force when disappearing, briquetting 90 is the outer dead point original positions that stop or reply in replacement course, and the ramp 47 of the rectangle hole slot 46 of described lengthy motion picture body 40 is ramp 93 the next that are fitted in briquetting 90, makes lengthy motion picture body 40 not to top offset; And be pressed when inwardly being moved to inner dead point when briquetting 90, rely on the relationship in a mutual action between the ramp 47 of rectangle hole slot 46 of the ramp 93 of briquetting 90 and lengthy motion picture body 40, the ramp 47 that can force described lengthy motion picture body 40 is moved upward to upper by the ramp 93 of briquetting 90 the next, make lengthy motion picture body 40 simultaneously to top offset, for drawing/promote rectangular in chute, to slide up and down displacement simultaneously to adjust handrail height.

More than explanation is just illustrative for the utility model, and it is nonrestrictive, those of ordinary skills understand, under the situation of the spirit and scope that do not break away from claim and limited, can make many modifications, variation or equivalence, but but all will fall within the claim restricted portion of the present utility model.

Claims

1. armrest of seat height guiding mechanism comprises an outer sleeve, a base body, one rectangular, a lengthy motion picture body, a stator, a long guide card, a fixture block, a guide block and a briquetting, and wherein, the bottom of described outer sleeve is to lock on a underframe; Described base body is to be fixed in the outer sleeve inner upper end, establishes a chute and its medial surface in it and is provided with several equidistant straight locating holes to arrangement; Described rectangular is to be set in the chute of base body, and its top links an armrest support, forms a groove in the middle of it; Described lengthy motion picture body is provided in a side of in the groove, it is established a lug near upper end and puts for colluding on the spring, below lug, establish always to elongated hole, below elongated hole, establish a projection, described elongated hole is corresponding to a rectangular last axis hole, and described lengthy motion picture body is a halt and sliding up and down in rectangular groove with the upper and lower side of elongated hole; Described stator is to be positioned at the external side of lengthy motion picture and locking on rectangular axis hole, is convexly equipped with a lug on it and colludes for the lower end of described spring and put, and described lengthy motion picture body relies on the spring restoring force and automatically resets behind top offset; Described long guide card is to be positioned at the stator outside and locking on rectangular axis hole, which is provided with one with the lengthy motion picture body on the reverse projection of projection; Described fixture block is to be horizontally installed on long guide card lower end, and is horizontally through rectangular last one and wears groove and its head end snaps in the locating hole of base body chute medial surface;

2. armrest of seat height guiding mechanism according to claim 1, it is characterized in that: described guide block is one-body molded body or the assembly that plastics penetrate.

3. armrest of seat height guiding mechanism according to claim 1, it is characterized in that: described briquetting is the one-body molded body that plastics penetrate.