CN201480671U

CN201480671U - Armrest height adjusting structure of chair

Info

Publication number: CN201480671U
Application number: CN2009201473933U
Authority: CN
Inventors: 李煌宝
Original assignee: Isotech Products Inc
Current assignee: Isotech Products Inc
Priority date: 2009-04-24
Filing date: 2009-04-24
Publication date: 2010-05-26
Anticipated expiration: 2019-04-24

Abstract

The utility model provides an armrest height adjusting structure of a chair, which comprises an L-shaped rod consisting of a transverse part and a longitudinal part, a tube support body sleeved in accommodation space of the longitudinal part of the L-shaped rod, an outer sleeve sleeved on the outer side of the longitudinal part of the L-shaped rod in a sliding manner, a T-shaped rod sleeved in the tube support body and locked to the outer sleeve, a pull handle arranged in a groove in the middle of the T-shaped rod, a long guide vane locked in a shaft hole of the T-shaped rod, an elastic component arranged between the top end of the pull handle and the top part of the T-shaped rod, and an armrest cushion assembled above the outer sleeve, wherein, the upper end of the outer sleeve is connected with the armrest cushion. When in adjustment, the pull handle is pulled and lifted to push and press a bulge of the long guide vane, and the bulge drives a slide block to move transversally to the outer side and be separated from the original positioning hole, so that the T-shaped rod can move freely and up and down in the tube support body, and the height can be adjusted; after the pull rod and the long guide vane are released, the slide block is reset and is clamped and fixed in an another positioning hole, so that the operation of armrest height adjustment can be finished simply.

Description

A kind of armrest of seat adjustable bridge structure

Technical field

The utility model relates to a kind of adjustment structure, relates in particular to a kind of armrest of seat adjustable bridge structure.

Background technology

Present armrest of seat, except that on overall styling, have various different designs selective, multiple different adjustable bridge structure is also arranged, for can be with seat person stature or the difference that needs and easy adjustment height of armrests, the person's that enables to promote the seat comfort; And this creator utility model one " office chair handrail adjustable bridge structure " and obtain novel No. 226937 patent in tw Taiwan respectively between calendar year 2001 once, China utility model ZL01219097.7 and US6,336,680 U.S.'s patents of invention, described case structure such as Fig. 1, shown in Figure 2, it comprises an outer sleeve 100, described outer sleeve 100 bottoms are locked on the underframe 110, for the extensible seat support below (not shown) that is locked in, the inner upper end of outer sleeve 100 is overlapped a solid base body 200 again, be provided with a chute 210 in the described base body 200, chute 210 medial surfaces are provided with a plurality of equidistant directly to the locating hole of arranging 220; In chute 210 sheathed one vertical rectangular 300 again, form groove 340 in the middle of rectangular 300, rectangular 300 top links an armrest support (or an armrest pad lower shell seat) 310, supplies to assemble with an armrest pad, and can set up an outer sheathing 350 to modify overall appearance; At rectangular 300 lateral border one lengthy motion picture body 400 is set again, and the upper end of described lengthy motion picture body 400 outwards convexes with leader 410, can upwards draw by outer sheathing 350 outsides for staff and to carry or discharge, below handle 410, be convexly equipped with a lug 420, described lug 420 ammunition feed springs 430 upper ends are colluded and are put, below lug 420, establish always to elongated hole 440, below elongated hole 440, establish a projection 450; Lengthy motion picture body 400 utilizes elongated hole 440 corresponding to a protruding axis hole 320 of rectangular 300 again, and at a solid stator 500 of the external side chain of described lengthy motion picture and a long guide card 600, stator 500 and long guide card 600 are fixed on rectangular 300, are halt and can sliding up and down in rectangular 300 intermediate groove 340 but make lengthy motion picture body 400 with the upper and lower side of elongated hole 440; Be convexly equipped with a lug 510 again on stator 500, the lower end of these lug 510 ammunition feed springs 430 is colluded and is put, and after lengthy motion picture body 400 upwards being drawn carry the back and discharging, can automatically reset by spring 430 elastic force; On the long again guide card 600 appropriate position be provided with one with projection 450 reverse projectioies 610, and long guide card 600 lower ends connect a horizontal fixture block 700, it is interior and connect to utilize long guide card 600 lower ends to pack into the caulking groove 710 of fixture block 700 tail ends; Wear groove 330 and fixture block 700 is horizontally through one on rectangular 300, and its head end 720 can be protruded in the locating hole 220 of chute 210 medial surfaces.Pass through said structure, when staff does not draw carrying handle hand 410 upwards, be that lengthy motion picture body 400 is not to top offset (can contrast shown in Figure 5), projection 450 on the lengthy motion picture body 400 is not to top offset, do not contact the projection 610 on the long guide card 600, make the lower end of long guide card 600 still keep former upright position, also make fixture block 700 still keep fastening state with a locating hole 220; And desire is when adjusting height of armrests, then can draw carrying handle hand 410 upwards at arm rest, make upwards elastic displacement (spring 430 stretches simultaneously) of lengthy motion picture body 400, cause projection 450 projectioies 610 that upwards contact on the long guide card 600, and the outside perk in the lower end that makes long guide card 600 and leave former upright position, make fixture block 700 outwards break away from former locating hole 220 (can contrast shown in Figure 6), rectangular 300 does not promptly have any block card point again in chute 210 at this moment, and can slide up and down displacement to adjust height, when handrail adjusted to a new high degree, decontrol handle 410, lengthy motion picture body 400 is resetted by the restoring force of spring 430, make projection 450 break away from downwards the projectioies 610 of long guide card 600, fixture block 700 can automatically reset and is fastened in the new locating hole 220 by long guide card 600 elasticity own, finishes the adjustment of handrail height and moves; Yet the number of elements of forming above-mentioned structure is more also complicated, and the volume after forming relatively is bigger, has increased element (part) management and built-up time, also reduces the usage space of seat support; And wherein the handrail adjustable bridge structure is primarily aimed at the number of the space kenel of structure or member or operational complexity etc. and does different improvement designs, phase can structurally produce suitable otherness with prior art, or promote and use effect, or reduce cost to increase competitiveness; And the utility model promptly is in designed in such cases a kind of novel adjustment structure.

Summary of the invention

The utility model main purpose is to provide a kind of armrest of seat adjustable bridge structure, its T type bar can be in the base body free upper and lower displacement to adjust height, can reduce again L type bar about handrail to width, reducing the handrail volume, and then increase the seat usage space.

In order to achieve the above object, the utility model provides a kind of armrest of seat adjustable bridge structure, comprises a L type bar, a base body, an outer sleeve, a T type bar, a pull handle, a long guide card, an elastic component and armrest pad, wherein:

Described L type bar comprises a transverse part and a longitudinal part, and described transverse part is locked on seat, is provided with an accommodation space in the described longitudinal part, and two planes of symmetry are offered symmetrical perforate about described longitudinal part upper end;

Described base body is sheathed in the accommodation space of longitudinal part of described L type bar, is provided with a chute in the described base body, and described chute medial surface is provided with a plurality of equidistant directly to the locating holes of arranging;

Described outer sleeve, be sheathed on the longitudinal part outside of described L type bar, described outer sleeve upper end is provided with an opening, and this opening inboard is provided with a plurality of holes seat, described hole seat can be corresponding sealed with described T type bar and described armrest pad, and facing the wall and meditating in the left side of this opening or faces the wall and meditates in the right side is provided with a groove downwards;

Described T type bar, be sheathed in the described base body, described T type bar comprises the strip parts that a top and is vertically connected at this bottom surface, top, form groove in the middle of the described strip parts, the opening of this groove is towards the leading flank or the trailing flank of handrail, the both sides, groove upper end that form in the middle of the described strip parts are respectively equipped with a breach, and the groove of described strip parts upper and lower settings one axis hole and is respectively worn groove;

Described pull handle, be strip, form a groove in the middle of it, described pull handle top laterally vertically is provided with the leader, described pull handle is arranged in the intermediate groove of described T type bar, described handle is limited in the groove on the side walls of opening of the breach of strip parts upper end of described T type bar and described outer sleeve, described handle below is provided with always to elongated hole, should be straight to elongated hole to being positioned at the axis hole on the described T type bar, this directly is provided with a projection to the elongated hole below, and, this long guide card is fixed on the described T type bar at the described long guide card of described pull handle groove outside locking;

Described long guide card, be positioned on the intermediate groove of described pull handle and be locked in axis hole on the described T type bar, described long guide card be provided with one with described pull handle on protruding reverse projection, described long guide card lower end connects a slide block, described slide block is horizontally through the groove of wearing on the described T type bar, and makes the head end of described slide block can protrude into the locating hole of the chute medial surface of described base body;

Described elastic component is arranged between the top of described pull handle top and described T type bar;

Described armrest pad is locked on the hole seat of described outer sleeve upper end open inboard, and is assembled in described outer sleeve top;

When adjusting handrail height, pulling the handle of carrying described pull handle with the people upwards makes the elastic component between the top of described pull handle top and described T type bar be compressed, and the projection on the described pull handle moves up and pushes projection on the described long guide card, cause that to order about described slide block traversing laterally and break away from former locating hole, make the free displacement of energy in the chute of described base body of described T type bar, make the outer sleeve that is connected in described T type bar and the described armrest pad can be simultaneously to top offset to adjust height, wait to release out described pull handle and described long guide card, described slide block is resetted and snap in the new locating hole fixingly again, promptly finish the adjustment of handrail height.

Compared with prior art, armrest of seat adjustable bridge structure simple structure described in the utility model, and the elongate recesses opening of T type bar is the front or rear side towards handrail, again elastic component is arranged between pull handle top and the T type masthead portion, but lift handle elasticity and order about long guide card and drive slide block and break away from former locating hole by upwards drawing, make T type bar can be in the base body free upper and lower displacement to adjust height, can reduce again L type bar about handrail to width, with reduction handrail volume, and then increase the seat usage space.

Description of drawings

Fig. 1 is the schematic perspective view of a prior art (case number 090206500 novel patent);

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

Fig. 3 is the three-dimensional exploded view of armrest of seat adjustable bridge structure described in the utility model;

Fig. 4 is the three-dimensional combination figure of armrest of seat adjustable bridge structure described in the utility model;

Fig. 5 is the front section view of armrest of seat adjustable bridge structure described in the utility model before adjustment;

Fig. 6 is the front section view of armrest of seat adjustable bridge structure described in the utility model in adjustment;

Fig. 7 is that armrest of seat adjustable bridge structure described in the utility model is at adjusted front section view.

Description of reference numerals: L type bar-10; Transverse part-11; Longitudinal part-12; Accommodation space-121; Upper end-122; Perforate-123; Base body-20; Chute-21; Locating hole-22; Elastic strip body-23; Outer sleeve-30; Opening-31; Hole seat-32; Side walls-33; Groove-34; Screw-35; T type bar-40; Top-41; Open-work-411; Strip parts-42; Groove-43; Breach-44; Axis hole-45; Wear groove-46; Pull handle-50; Groove-51; Handle-52; Elongated hole-53; Projection-54; Restriction portion-55; Long guide card-60; Screw-61; Projection-62; Slide block-63; Caulking groove-64; Head end-65; Elastic component-70; Armrest pad-80; The collar-90; Lug-91.

The specific embodiment

For making the utility model clear and definite more full and accurate, enumerate preferred embodiment and cooperate following accompanying drawing, structure of the present utility model and technical characterictic thereof are described in detail as the back:

Please refer to shown in Fig. 3,4,5 front section view before the three-dimensional exploded view of armrest of seat adjustable bridge structure described in the utility model, three-dimensional combination figure, the adjustment.Armrest of seat adjustable bridge structure described in the utility model comprises a L type bar 10, a base body 20, an outer sleeve 30, a T type bar 40, a pull handle 50, one long guide card 60, an elastic component 70 and armrest pad 80, wherein, described L type bar 10 comprises a transverse part 11 and a longitudinal part 12, described transverse part 11 can be locked together in under-seat (figure does not show) and the support seat of formation handrail, and described longitudinal part 12 inside are provided with an accommodation space 121; Two planes of symmetry are further offered symmetrical perforate 123 about upper end 122 outer rims of described longitudinal part 12; Upper end 122 outer rims of described longitudinal part 12 can a sheathed collar 90, for increasing longitudinal part 12 and outer sleeve 30 adaptations and sliding; The described again collar 90 tops inwardly are provided with a plurality of lugs 91, the collar 90 are supported end and are positioned the upper end 122 of described longitudinal part 12 and increase the socket effect of the collar 90.

Described base body 20 overlaps in the accommodation space 121 of the longitudinal part 12 that is fixed in L type bar 10, is provided with a chute 21 in the described base body 20, and chute 21 medial surfaces are provided with registration hole 22 always, and described locating hole 22 is formed by a plurality of locating holes 22 equidistant arrangements; Described base body about 20 two outsides further outwards are convexly equipped with elastic strip body 23 respectively, this elastic strip body 23 for upper end 122 outer rims of the longitudinal part 12 that can corresponding be sticked in L type bar 10 about perforate 123 on two planes of symmetry.

Described outer sleeve 30 slip caps are located at the outside of the longitudinal part 12 of L type bar 10, and by with the touching of the collar 90 to longitudinal part 12 adaptations that can increase with L type bar 10, and outer sleeve 30 upper end open 31 are the flaring shape, opening 31 inboards are provided with a plurality of screw hole seats 32, and it is corresponding sealed that this hole seat 32 can utilize screw to pass for T type bar 40 and armrest pad 80; Facing the wall and meditating in the left side of described again opening 31 or faces the wall and meditates in the right side, and 33 appropriate positions are provided with a groove 34 downwards by opening 31 tops, and this groove 34 can pass outwards through for the handle 52 of pull handle 50 and the bound displacement is moved.

Described T type bar 40 is sheathed in the base body 20, described T type bar 40 comprises a top 41 and a strip parts 42, described strip parts 42 is vertically connected at the bottom surface at top 41, wherein, described top 41 is provided with open-work 411, and described open-work 411 is corresponding also by screw 35 lockings with the screw hole seat 32 of outer sleeve 30; Form groove 43 in the middle of the described strip parts 42, the opening of groove 43 is towards the leading flank or the trailing flank of handrail, groove 43 both sides of strip parts 42 upper ends are respectively equipped with a breach 44, again in two appropriate positions of groove 43 respectively upper and lower settings one axis hole 45 and wear groove 46.

Described pull handle 50 is a strip, form a groove 51 in the middle of it, its top vertically is provided with leader 52, described handle 52 is towards a left side or right, described pull handle 50 is arranged in the intermediate groove 43 of T type bar 40, described handle 52 is limited in the breach 44 of strip parts 42 upper ends of described T type bar 40, appropriate position, handle 52 below is provided with always to elongated hole 53, appropriate position, elongated hole 53 below is provided with a ramp projections 54, pull handle 50 utilizes 53 pairs of elongated holes to be positioned at the axis hole 45 of the strip parts 42 of T type bar 40 again, and at described groove 51 outsides locking one long guide card 60, long guide card 60 is fixed on the T type bar 40, is halt and can sliding up and down in the intermediate groove 43 of T type bar 40 but make pull handle 50 with the upper and lower side of elongated hole 53; Described pull handle 50 tops further are provided with a restriction portion 55 for elastic component 70 corresponding sockets, and make flexible up and down spacing the moving of elastic component 70.

Described long guide card 60 sees through the elongated hole 53 on the intermediate groove 51 of pull handle 50 and is locked on the axis hole 45 of T type bar 40 by screw 61, described long guide card 60 appropriate positions be provided with one with pull handle 50 on the reverse projection 62 of projection 54, and long guide card 60 lower ends connect a transverse slider 63, can utilize long guide card 60 lower ends to pack in the caulking groove 64 of slide block 63 tail ends and connect; Wear groove 46 and slide block 63 is horizontally through one on the T type bar 40, and the head end 65 of described slide block 63 can be protruded in the locating hole 22 of chute 21 medial surfaces of base body 20.

Described elastic component 70 is arranged between the top 41 of pull handle 50 tops and T type bar 40, make pull handle 50 by staff upwards draw carry after, can automatically reset by elastic component 70 elastic force, and described elastic component 70 can be coil tension spring.

Described armrest pad 80 is locked on the screw hole seat 32 of outer sleeve 30 upper end open 31 inboards and is assembled in outer sleeve 30 tops.

Combining structure by above-mentioned member, when staff does not draw carrying handle hand 52 upwards, as Fig. 4, shown in Figure 5, projection 54 on the pull handle 50 is not to top offset, cause the projection 62 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 slide block 63 still keep fastening state with a locating hole 22, wear groove 46 and be horizontally through on the strip parts 42 of T type bar 40, therefore make handrail also maintain described height with T type bar 40 because of slide block 63.

Please refer to Fig. 6, shown in Figure 7, the front section view in the adjustment of the described handrail adjustable bridge structure of the utility model chair, adjusted front section view.When adjusting handrail height, pulling the handle 52 that lifts handle 50 with the people upwards makes the elastic component 70 between the top 41 of pull handle 50 tops and T type bar 40 be compressed, and the projection 54 on the pull handle 50 moves up and pushes projection 62 on the long guide card 60, cause that to order about slide block 63 traversing laterally and break away from former locating hole 22, make the T type bar 40 can free displacement in the chute 21 of base body 20, make the outer sleeve 30 that is connected in T type bar 40 can be to top offset to adjust height simultaneously with armrest pad 80, wait to release out pull handle 50 and long guide card 60, slide block 63 is resetted and snap in again in the new locating hole 22 fixing, the promptly simple and easy adjustment of finishing handrail height.

As mentioned above, the opening of the intermediate groove 43 on the T type bar 40 of armrest of seat adjustable bridge structure described in the utility model is towards a front or rear side of handrail, cause combined member to utilize with the space of the forward and backward side in handrail below, compare existing structure and can dwindle the space of handrail left and right sides, and then increase the usage space of seat support; Its simple structure of the utility model again, the number of elements of forming structure is less, and the volume after forming relatively is less, has reduced element (part) management and built-up time, also increases the usage space of seat support; And armrest of seat adjustable bridge structure and prior art structurally have suitable otherness, can promote simultaneously to use effect and reduce production costs and then increase product competitiveness.

The above only is this novel preferred embodiment, and novel for this only is illustrative, and nonrestrictive; Those of ordinary skills understand, and can carry out many changes to it in these spirit and scope that novel claim limited, revise, even the equivalence change, but all will fall in this novel protection domain.

Claims

1. an armrest of seat adjustable bridge structure is characterized in that, comprises a L type bar, a base body, an outer sleeve, a T type bar, a pull handle, a long guide card, an elastic component and armrest pad, wherein:

2. armrest of seat adjustable bridge structure as claimed in claim 1, it is characterized in that, two outsides further outwards are convexly equipped with elastic strip body respectively about described base body, described elastic strip body correspondence be sticked in described L type bar longitudinal part upper end about perforate on two planes of symmetry.

3. armrest of seat adjustable bridge structure as claimed in claim 1 is characterized in that, the longitudinal part upper end outer rim of described L type bar is a sheathed collar further.

4. armrest of seat adjustable bridge structure as claimed in claim 1 is characterized in that, the opening of described outer sleeve upper end is the flaring shape.

5. armrest of seat adjustable bridge structure as claimed in claim 1 is characterized in that, the top of described T type bar further is provided with a plurality of open-works with the hole seat corresponding to outer sleeve upper end open inboard.

6. armrest of seat adjustable bridge structure as claimed in claim 1 is characterized in that, described pull handle top further is provided with a restriction portion, and this restriction portion is for the corresponding socket of elastic component.

7. armrest of seat adjustable bridge structure as claimed in claim 1 is characterized in that, described elastic component is a coil tension spring.