CN2501383Y - Improved chair back-rest inclination controller - Google Patents

Abstract

The utility model relates to a modified chair back tipping control device. The pneumatic bar end of the upper of the chair foot is inserted in a base, on which is arranged an underpan of a fixed seat, which is hinged with the underpan; the back of the underpan is extended downward and is provided with a plurality of card-made grooves. The utility model is characterized in that a guide seat with a locating plate of a groove cave is arranged on the base; the top of the guide seat is provided with a sliding rail combining with the sliding seat with a caulking groove, and is also provided with a straight slot; a sliding seat is provided with a slanting slat; a bolt passing though the two slats is arranged on a locating plate of the groove cave; the side of the sliding seat is provided with an ear for inserting a reciprocating lever; the two ends of the reciprocating lever are provided with a spring; one end of the reciprocating lever is arranged on a control bar, on which is provided with two locating slots; one spring locating ball is arranged on the base which is relative to the locating slot; the sliding seat is removed by pulling the control bar; the locating plate extends or retracts to adjust the angles of the chair back. The operation is simple, convenient and practical.

Description

Improved chair back reclining control device

Technical field

The utility model relates to a kind of chair tool, the improved chair back reclining control device that particularly a kind of tool is easy to operate, smooth and easy, safe and reliable.

Background technology

Patent is announced in one known Taiwan patent application No. 389066, it is the structure for " preventing the safety device that Chair back rebounds suddenly ", be to make the push rod end of controlling chair back reclining angle be hubbed at an end of a L shaped link arm, and the end in addition of L shaped link arm articulates with a connecting rod, make again connecting rod in addition an end of end and elastic arm articulate, and by elastic arm in addition end wear screw, and screw is spirally connected on the slide plate of a slide guide in plate; So under can driving in the connection of L shaped link arm, connecting rod and elastic arm when promoting push rod, slide plate is embedded in the locating slot of chair back base, to reach the location after the chair back tilts; If when desiring that the chair back is resetted or desiring to adjust again different reclinings to spend, then when the pulling push rod, behind L shaped link arm rotation location, make the elastic arm bending two ends and produce rotating pre-thrust, so the occupant must lean on the chair back slightly firmly layback, make to produce the gap between locating slot and slide plate and loosen, loosen by the strength that slide plate is tightly stung, slide plate is promptly broken away from locating slot, and the chair back could be adjusted its inclination again or reset; So the chair back can not beaten the occupant back by bullet, to reach the purpose of security protection.

Though above-mentioned structural approach can be reached desired purpose and effect, manufacturing or manipulating, desirable not to the utmost place is arranged still, as follows:

1. control the control lever and the push rod of adjusting chair back reclining angle of the lifting of chair tool height, both are that branch is arranged, so though independent separately in operation, cause in the operation comparatively to bother, if both can be integrated, then can make the convenience of its match operation;

2. the whole related drives structure from push rod, L shaped link arm, connecting rod to elastic arm, complex structure and cause the cost in manufacturing, the assembling to improve and trouble not only, and in the transmission of action, have some setbacks easily in the middle of can causing, the phenomenon of sluggishness, cause the difficulty of moving or the generation of bungle;

3. stir slide plate with elastic arm, and simultaneously form pre-thrust by the elasticity of elastic arm, tired, the distortion of using because of elastic arm is long-term easily, and cause its difficulty of stirring slide plate, even produce bungle and maybe can't move.

Summary of the invention

The utility model is that a kind of improved chair back reclining control device will be provided, and makes its easy to operate, smooth and easy, safe and reliable technical problem with solution.

It is such solving the problems of the technologies described above the technical scheme that is adopted:

A kind of improved chair back reclining control device is for the air pressure rod end of the chair pin upper end of chair tool, is arranged in the base, and make the chassis of establishing a holder on the base, this holder engages with the chassis, and the rear end on this chassis is stretched downwards and established a plurality of clamping slots, it is characterized in that:

Establish a guide bracket with the groove cave that can be installed with spacer on the base, and establish a slide in guide bracket end face cunning, this guide bracket end face is established shape slotted hole always, and this slide end face is established an oblique slotted hole, passes this straight shape slotted hole and oblique slotted hole and is fixed on the spacer in the groove cave with screw; This slide side is stretched and is established an ear that is equipped with reciprocating lever, and respectively is arranged with spring in the both sides of reciprocating lever, and the outboard end of this both sides spring all is subjected to reciprocating lever two ends backstop institute block, and an end of this reciprocating lever is fixed on the control lever of controlling chair back reclining;

This guide bracket end face is provided with slide rail, and the set mutual embedding system cunning of caulking groove in this slide rail and slide bottom surface is closed;

This control lever is provided with two locating slots, and in wherein on the pairing base of a locating slot elasticity positioning bead being set, this elasticity positioning bead snap-on is gone on arbitrary locating slot, and this control lever fixes the location.

The utility model is to establish one to have the guide bracket that the groove cave that can be installed with spacer and end face cunning are established a slide on the base of chair tool, and establish shape slotted hole always at the guide bracket end face, establish an oblique slotted hole at the slide end face, and be fixed on the spacer after passing two slotted holes with screw, stretch at the slide side and to establish an ear, this ear wears a reciprocating lever, and on the reciprocating lever on ear both sides, be equipped with spring, and make both sides spring outboard end all be subjected to the backstop block at reciprocating lever two ends, and then an end of reciprocating lever is fixed on the control lever of controlling chair back reclining; When driving slide when the push-and-pull control lever and moving, can spacer be stretched out by the groove cave by oblique slotted hole or shrink back, embed or withdraw from the terminal set clamping slot in chassis to reach spacer, so that adjust the reclining angle of the chair back, so total is not only comparatively simple, and the driving of spacer is direct transmission, so that its action can keep is smooth and easy, certain, errorless;

The utility model is the control lever and the push rod of adjusting chair back reclining angle of the lifting of original control chair tool height, and both integrate, and make its operation more convenient;

The pre-thrust that is produced on the utility model slide is given by the compression spring of reciprocating lever both sides, and not only the pre-thrust abundance of its elasticity does not have tired distortion simultaneously again; Make it easy to operate thereby solved, smooth and easy, safe and reliable technical problem.

The utility model is simple in structure, the base of this chair tool is to establish one can be made by the push-and-pull of control lever and be slidedly arranged on the slide that has oblique slotted hole on the base, drive is slidedly arranged on spacer in the cave groove of base and stretches out or shrink back, spacer is embedded or withdraw from the terminal set clamping slot in chassis, adjust the angle of chair back reclining with this, it moves smooth and easy convenience, safe and reliable, and the tool practicality.

Description of drawings

Fig. 1 is a structural upright decomposing schematic representation of the present utility model;

Fig. 2 is the utility model vertical view one;

Fig. 3 is the utility model vertical view two;

Fig. 4 is the utility model control lever place cutaway view one;

Fig. 5 is the utility model control lever place cutaway view two;

Fig. 6 is the utility model sectional view.

The specific embodiment

As shown in Figure 1, 2, be that a chair tool and chair pin connect base 1 top of establishing and cover and fix a plate body 11, establish a guide bracket 13 with groove cave 12 on this plate body 11, establish slide rail 14 at these guide bracket 13 end faces and reach shape slotted hole 15 always, then again on plate body 11 spiral shell establish an elasticity positioning bead 16 (being to be installed with a steel ball that is subjected to spring push in the screw, not shown in the figures); Establish a spacer 2 and in aforesaid groove cave 12, slide, and on spacer 2, establish a screw 21, and make screw 21 corresponding with straight shape slotted hole 15, establish the slide 3 that a bottom surface has caulking groove 31 again, and caulking groove 31 is closed with aforesaid slide rail 14 is sliding mutually, and make the slide 3 can free slippage on guide bracket 13, on slide 3, establish an oblique slotted hole 32 simultaneously again, if after a screw 4 passes oblique slotted hole 32 and straight shape slotted hole 15, and be fixed on the screw 21 of spacer 2; In addition, the side of slide 3 extends an ear 33, in ear 33, wear a reciprocating lever 5 then, and respectively be equipped with spring 6a, 6b on the both sides of reciprocating lever 5, and two outboard ends that make spring 6a, 6b all are subjected to set backstop 51a, the 51b institute block in two ends of reciprocating lever 5, and an end of reciprocating lever 5 is fixed on the Extendible flake 81 that is set firmly on the control lever 8 of controlling chair back reclining; So under the pushing tow of spring 6a, 6b, no matter be that reciprocating lever 5 moves to any end, all has the effect that elasticity is return.

Secondly, again on control lever 8 except having the compressing tablet 82 of pushing air pressure rod, and then be provided with two locating slots 83 in the end slightly of control lever 8, and make the elasticity positioning bead 16 that is provided with on the wherein locating slot 83 and plate body 11 corresponding, and can embed wherein, and control lever 8 is to be arranged on base 1 and the chassis 7 and slip, and then drives reciprocating lever 5 and move thereupon.

So, please cooperate shown in Fig. 2,4, be the situation of the utility model before not moving as yet, the locating slot 83 that is the outboard end of control lever 8 is to be fastened on the elasticity positioning bead 16, make control lever 8 be subjected to block and can not move, slide 3 is close proximity on the side of guide bracket 13 simultaneously, makes screw 4 be positioned at an end of oblique slotted hole 32, and spacer 2 is to shrink back in groove cave 12 this moment; If when control lever 8 during by inside pushing tow, 16 blockings of elasticity positioning bead are gone in control lever 8 locating slot 83 in the inner part, control lever 8 is located, driving reciprocating lever 5 by compressing tablet 82 simultaneously moves, make spring 6a produce the strength of pushing tow to slide 3, slide 3 is moved towards the other end of guide bracket 13, so make spacer 2 have the trend and the strength of outside ejection, embed in the 7 terminal set clamping slots 71 of chassis (promptly shown in Fig. 3,5,6) under the drive of oblique slotted hole 32 that so can be on slide 3; When otherwise control lever 8 is pulled, be to make spring 6b produce the strength of pushing tow to slide 3 equally, can make slide 3 can return back to original position again, just spacer 2 has the trend and the strength of inwardly shrinking back, so can be under the drive of the oblique slotted hole 32 on the slide 3, and withdraw from by the chassis set clamping slots 71 of 7 ends.

By above-mentioned action, just can adjust the reclining angle of the chair back, whole simultaneously structure is not only comparatively simple, and suffered each driving element and the mode thereof of spacer 2, be the form that belongs to direct driving, so can make its action more smooth and easy, and guarantee errorless really; To control the control lever and the push rod of adjusting chair back reclining angle of the lifting of chair tool height in addition, both integrate, make operation have more convenience, and the pre-thrust that is produced on the slide 3, be that compression spring 6a, 6b by the both sides of reciprocating lever 5 given, not only the pre-thrust abundance of its elasticity has been avoided tired distortion simultaneously again.

In sum, the utility model is with more easy structure, reach action smoothly more really, real non-known structure can be compared, so the utility model has not only reached practical value, and at first creating, have advance again, meet each important document of utility model patent, so propose utility application in accordance with the law.

Claims (3)

1, a kind of improved chair back reclining control device is for the air pressure rod end of the chair pin upper end of chair tool, is arranged in the base, and make the chassis of establishing a holder on the base, this holder and chassis pin-joint, the rear end on this chassis are stretched downwards and are established a plurality of clamping slots, it is characterized in that:

Establish a guide bracket with the groove cave that can be installed with spacer on the base, and establish a slide in guide bracket end face cunning, this guide bracket end face is established shape slotted hole always, and this slide end face is established an oblique slotted hole, passes this straight shape slotted hole and oblique slotted hole and is fixed on the spacer in the groove cave with screw; This slide side is stretched and is established an ear that is equipped with reciprocating lever, and respectively is arranged with spring in the both sides of reciprocating lever, and the outboard end of this both sides spring all is subjected to reciprocating lever two ends backstop institute block, and an end of this reciprocating lever is fixed on the control lever of controlling chair back reclining.

2, improved chair back reclining control device according to claim 1, it is characterized in that: this guide bracket end face is provided with slide rail, and the set mutual embedding system cunning of caulking groove in this slide rail and slide bottom surface is closed.

3, improved chair back reclining control device according to claim 1, it is characterized in that: this control lever is provided with two locating slots, and in wherein on the pairing base of a locating slot elasticity positioning bead being set, this elasticity positioning bead snap-on is gone on arbitrary locating slot, and this control lever fixes the location.

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