CN2596865Y - Shake stopping structure of office chair hand rail capable of regulating high and low - Google Patents

Abstract

The utility model discloses a shake proof structure of an height adjustable handrail of the office chair, which has the structure of that, a handrail body 10 is connected with an outer sleeve pipe base 20 and is sleeved and arranged on a frame piece 30, and the outer sleeve pipe base 20 can move up and down on the frame piece 30 through a height adjustable structure 40. The utility model is characterized in that, a plurality of grooves 34 are arranged in the proper distance on both sides edge of the frame piece 30, and a flexible shake proof block 50 which is columniform with both round sections as a sphere convexity 51 is blocked and arranged in the groove 34, thus forming the tighten forcing function of the secondary space through the frame piece 30 and the inner wall of the outer sleeve pipe base 20, so as to overcome the shake performance of the secondary space caused by the matching between the outer sleeve pipe base 20 and the metal made frame piece 30, and ensure the stability of the outer sleeve pipe base 20 at any height without shaking and excursions on the frame piece. The flexible shake proof block 50 is made of grease proof rubber, when in use, the lube can be filled on the shake proof block 50 so as to increase the smooth level of the outer sleeve pipe base 20.

Description

The office chair handrail that can just adjust only shake structure

Technical field

The utility model relates to a kind of office chair, the particularly a kind of office chair handrail that can just adjust only shake structure.

Background technology

Present office chair handrail except that have various shape-designings selective, also have multiple different adjustment structure, the person that makes the seat can or need and simple and easy adjustment height of armrests or width degree with stature, uses the comfort of promoting seat and improves the product surcharge.And the dealer is adjusting on the structure Design, though difference to some extent on its assembling kenel or member number or the operation difficulty all is to make every effort to promote use effect or reduce cost, to increase the competitiveness of article.

The armrest that major part can just be adjusted all is to utilize armrest body below to link an overcoat base earlier, this outer tube cover for seat is located on the rack plate, the adjustable bridge structure that cooperates various different designs again, make the overcoat base on rack plate, can do the upper and lower displacement adjustment, also therefore inevitable gapped existence between overcoat base and the rack plate, and rocking of overcoat base caused in this gap easily, the armrest body that is attached at overcoat base top is also rocked thereupon, influence the sense of stability and the comfortableness of handrail, and solution was once proposed at the above-mentioned situation of rocking dealer, as: " armrest chases after locking structure " novel patent of notification number 345914 (case number 86221476), see also shown in Figure 1, it is to sentence spacing distance to form several grooves A2 in the end of stator A1, in each groove A2 again in conjunction with a clamp holder A3, when block set A4 is inserted on the stator A1, but mat clamp holder A3 pushes against the gap between stator A1 and block set A4, shake between stator A1 and block set A4 preventing, but the design of above-mentioned compacting structure still has following shortcoming:

(1) handrail and the stator A1 that installs on the seat is symmetrical, but if produce this stator A1 and be used in left and right sides with same specification, but a single side end in stator A1 is provided with clamp holder A3, then the installation site of the clamp holder A3 of left and right sides handrail can't be in same direction, just if the clamp holder A3 of left handrail is at front end, then the clamp holder A3 of right handrail becomes in the rear end, and can't left-right symmetry, moreover, stator A1 makes with metal material (as iron plate), and stamping forming stator A1 all has tolerance (or error) to exist, differing to establish a capital as each stator A1 is complete plumbness, may lean forward or hypsokinesis, and therefore the clamp holder A3 of above-mentioned monolateral setting makes left and right sides handrail enlarge side-play amount or gradient easily, cause between the handrail of the left and right sides significantly asymmetricly, influence the function of use and the outward appearance of handrail.

(2) clamp holder A3 is a column type elastic gel, its thickness equals stator A1 thickness, causing a side end (being the thickness face) that only is placed in behind the groove A2 at stator A1 forms and protrudes, and can only produce before and after to (according to handrail in use direction and decide) the packing effect in space once, yet the gap between stator A1 and block set A4 but is the ring periphery that is present in stator A1, therefore, about block set A4 still is easy to generate to shaking phenomenon, this is that above-mentioned clamp holder A3 can't overcome.

(3) the packing effect of clamp holder A3 depends on that it protrudes from the protrusion amount of stator A1 side end face, but the protrusion amount too much makes fastening force excessive, can cause block set A4 to have some setbacks blocking up when mobile adjusting up and down.

The utility model content

What the purpose of this utility model provided a kind of office chair handrail that can just adjust only shakes structure, easily produces the phenomenon of rocking to solve the block set that existing structure exists.

The utility model is with the appropriate intervals distance several grooves to be set on the both side edges end face of rack plate, the both side edges end face of rack plate all is equipped with and only shakes piece, and this only shakes piece is a column type and the elastomer that is all spherical surface hill in two circular sections, after groove is gone in the piece holding of only shaking, can on the both side edges end face (thickness face) of rack plate and width face, the arc-shaped convex face be arranged all, the inwall of the external casing seat of rack plate forms the tight effect that chases after of ring periphery dual space, and can effectively overcome the dual space shaking phenomenon that the overcoat base is easily caused on rack plate, overcoat base any high and low position on support all can be stablized do not rock and non-migration.

Described elasticity is only shaken piece and can be utilized grease resistance rubber material to make, and the lubricant of can annotating is in use only shaking on the piece, to promote the overcoat base at the smooth-going degree of adjusting up and down when mobile.

Description of drawings

Fig. 1 is the side view of common handrail compacting structure.

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

Fig. 3 is a combination schematic perspective view of the present utility model.

Fig. 4 is the three-dimensional enlarged diagram that only shakes piece of the present utility model.

Fig. 5 is the side view that only shakes piece of the present utility model.

Fig. 6 is a user mode vertical view of the present utility model.

Fig. 7 is the perspective exploded view of another embodiment of the utility model.

The specific embodiment

See also Fig. 2, Fig. 3, Fig. 4, Fig. 5, shown in Figure 6, the utility model includes an armrest body 10, armrest body 10 bottoms link an overcoat base 20, and overcoat base 20 is set on the rack plate 30, and the effect of mat one adjustable bridge structure 40, making the combination of armrest body 10 and overcoat base 20 can carry out the adjustment of height up and down on rack plate 30 moves, and the epimere of this rack plate 30 is a upstanding portion, be nested with on it for overcoat base 20, it is crooked and extensible and be locked in seat support below (not shown) that 32 of hypomeres are 90 degree, to form the support seat of handrail in the seat support both sides, of the present utility model being characterised in that: on the both side edges end face 33 of rack plate 30 epimeres 31, groove 34 respectively is set with the appropriate intervals distance, be provided with respectively as each end face 33, following two grooves 34, the both side edges end face 33 of rack plate 30 all is equipped with only shake piece 50, and this only to shake piece 50 be a column type elastomer, but spherical surface hill 51 is all arranged in two circular sections, make and only shake after piece 50 is placed in the groove 34 of rack plate 30, can on both side edges end face (the thickness face) 33 of rack plate 30 and width face 35, all have arc-shaped convex face 52,53, to contact or packing with the ring week internal face 21 of overcoat base 20, make the internal face 21 of rack plate 30 external casing seats 20 form the packing effect that encircles the periphery dual space, and use the shaking phenomenon that overcomes overcoat base 20 dual space on rack plate 30, overcoat base 20 any high and low position on rack plate 30 all can be stablized do not rock and non-migration.

Though the both side edges end face 33 of said rack plate 30 epimeres 31 all is provided with groove 34, but both side edges end face 33 set grooves 34 be not restricted to symmetry or etc. number, as shown in Figure 7, upper and lower two grooves 34 at one end are set on the face 33, and a groove 34 is set on other end 33, and this single groove 34 can be positioned at the middle corresponding position of upper and lower two grooves 34, to form stable state.

Said elasticity is only shaken piece 50 and can be utilized grease resistance rubber material to make, for can only shaking the lubricant of annotating on the piece 50, when making overcoat base 20 carry out on rack plate 30 that up and down Height Adjustment moves, can overcome the ring side face and only shake the blocking up property that piece 50 may cause, and promote the smooth-going degree that moves.

Claims (4)

1, a kind of office chair handrail that can just adjust only shake structure, comprise an armrest body, the armrest body bottom links an overcoat base, and the outer tube cover for seat is located on the rack plate, and the effect of mat one adjustable bridge structure, make the overcoat base can be moving that the enterprising line height of rack plate is adjusted, and the epimere of this rack plate is a upstanding portion, put on it for the outer tube cover for seat, hypomere then bending extends and can be locked in below the seat support, to form handrail in the seat support both sides, it is characterized in that: on the both side edges end face of rack plate epimere, groove respectively is set with the appropriate intervals distance, the both side edges end face of rack plate all is equipped with and only shakes piece, and this only to shake piece be a column type elastomer, and spherical surface hill is all arranged in two circular sections, the piece that only shakes is placed in the groove of rack plate, and on the both side edges end face of rack plate and width face, all have the arc-shaped convex face, contact or packing with the ring week internal face of overcoat base, the internal face of the external casing seat of rack plate forms the packing effect that encircles the periphery dual space.

2, according to the described a kind of office chair handrail that can just adjust of claim 1 only shake structure, it is characterized in that: the set groove of said rack plate both side edges end face can be respectively upper and lower two and both sides correspondence.

3, only shake structure according to the described a kind of office chair handrail that can just adjust of claim 1, it is characterized in that: the set groove of said rack plate both side edges end face can be upper and lower two grooves are set on the end face, single groove is set on the other end, and this single groove is corresponding to place in the middle of upper and lower two grooves.

4, according to the described a kind of office chair handrail that can just adjust of claim 1 only shake structure, it is characterized in that: the said piece that only shakes utilizes grease resistance rubber material to make, the lubricant of can annotating in use.

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