CN2382296Y

CN2382296Y - Regulator for chair back inclination

Info

Publication number: CN2382296Y
Application number: CN 99213553
Authority: CN
Inventors: 陈朝根
Original assignee: Tay Huah Furniture Corp
Current assignee: Tay Huah Furniture Corp
Priority date: 1999-06-07
Filing date: 1999-06-07
Publication date: 2000-06-14
Anticipated expiration: 2009-06-07

Abstract

The utility model relates to an adjusting device for the inclination of a chair back. The utility model is proposed to provide an adjusting device for the inclination of a chair back, and the adjusting device for the inclination of a chair back has the advantages of convenient adjustment, safe use and high use performance. The utility model comprises a bearing seat, an adjusting frame, a connecting rod frame, a movable seat of the chair back, a sliding position clamping group, an elastic body, a plug and an adjusting rod, wherein, the sliding position clamping group comprises a plurality of shims which are inserted into each other at intervals and are provided with circular holes, sliding position sheets with long slot holes and shaft tubes which are penetrated through the shims and the sliding position sheets and can be slid oppositely to the sliding position sheets. The bearing seat and the connecting rod frame are respectively pivoted with the movable seat of the chair back. The sliding position clamping group is arranged in the adjusting frame pivoted with a connecting rod and is pivoted on the bearing seat via the plug pivoted with the adjusting rod.

Description

Chair back inclination adjusting device

The utility model belongs to chair components, particularly a kind of chair back inclination adjusting device.

The chair back of generally commonly using can be according to ergonomics little backward seat of facing upward, its chair back rack system and chair seat frame body by integral forming, and Cushion for back of chair is fixed or is hubbed on the chair back support body.Or between chair back support body and seat support support body, pin-jointed structure is set, so that adjusting the chair back, the user is suitable angle of inclination.Yet with regard to the chair back incline structure of these seats, often there is following point in the use in it:

1/ when chair back support body and chair seat frame system are formed in one, its Cushion for back of chair system recedes with human body contact layback, and when human body does not contact with Cushion for back of chair, promptly the elastic-restoring force because of itself returns back to original position, and can't according to need chair back adjustment be fixed in suitable angle, cause in the use comparatively inconvenience.

2/ seat of commonly using, when the user backward when facing upward, can the chair back be receded or adjust, yet after the chair back is extremely located, but very likely excessive by the active force of facing upward backward because of the user, and make the chair back or, not only seat is caused damage, even make user's safety be on the hazard together with the overturning backward of seat integral body.

The purpose of this utility model provides a kind of easy to adjust, safe in utilization, chair back inclination adjusting device that serviceability is good.

The utility model comprises bearing seat, adjustment rack, connecting rod rest, chair back sliding seat, sliding position clip group, elastomer, latch and adjusting lever; Bearing seat central authorities form accommodation space; The adjustment rack rear portion forms the bearing space; The sliding bit slice that sliding position clip group has the pad of circular hole by plural central authorities and has a long slot bore alternates and combines, and runs through each circular hole and long slot bore on pad and the sliding bit slice with central siphon, and central siphon plural number is relatively slided the slippage of bit slice long slot bore; The bearing seat articulates with its rear end and the chair back sliding seat outside; Adjustment rack is installed in the bearing seat accommodation space, and articulates with connecting rod rest, and the other end of connecting rod rest and chair back sliding seat are inboard to articulate, and the clip assembling of sliding position is located in the adjustment rack bearing space; Latch two ends of passing the central siphon of elastomer and sliding position clip group are installed on the bearing seat, and one end and adjusting lever pivot joint, its other end then screw togather behind the fit spring fixing with nut.

Wherein:

Bearing seat system is made of the side plate and the top board of the preceding board of offering assembly hole, two correspondences, and two corresponding side plates offer the pin-and-hole of locating hole, screw and the coaxial line of coaxial line respectively in appropriate location, and offer the pivot hole of coaxial line in biside plate rear side appropriate location; Adjustment rack system is made of assembled plate and two corresponding support bodys, make progress little song and offer circular hole of assembled plate front end; The support body side is provided with corresponding locating slot by preceding corresponding pin-and-hole, prelocalization hole, back locating hole and the pivot hole of then offering in regular turn between prelocalization hole and back locating hole.

Board below device has big spring before the bearing seat, and before from top to bottom covering by screw rod behind the circular hole and big spring of assembly hole, the adjustment rack assembled plate of board, adjust button with an intensity and be screwed together in the screw rod bottom, adjust the adjustment of button the big spring elasticity by intensity.

Because the utility model comprises bearing seat, adjustment rack, connecting rod rest, chair back sliding seat, sliding position clip group, elastomer, latch and adjusting lever; Sliding position clip group comprise the band circular hole that plural number alternates pad, belt length slotted eye sliding bit slice and run through both central siphons that also can slide the bit slice slippage relatively; Bearing seat and chair back sliding seat articulate; Adjustment rack is installed in the bearing seat, and articulates with connecting rod rest, and the other end of connecting rod rest and chair back sliding seat are inboard to articulate, and the clip assembling of sliding position is located in the adjustment rack; Latch two ends of passing the central siphon of elastomer and sliding position clip group are installed on the bearing seat, and one end and adjusting lever pivot joint, its other end then screw togather behind the fit spring fixing with nut.

During adjustment, pull adjusting lever down, the space is strengthened between each sliding bit slice of sliding position clip group and pad, just adjustment can recede chair back sliding seat, when chair back sliding seat tilts to the appropriate location, be about to adjusting lever and up pull, spring so that the outer tension and compression of latch are contracted, and and then the compressing elastomer, make the space between each sliding bit slice of the sliding position of its packing clip group and pad, sliding bit slice can not be moved, thereby make adjustment rack and chair back sliding seat reach strong fix, even pull under the adjusting lever this moment, also can not become flexible.

When desire is adjusted to original position with the chair back, promptly impose backward an active force to chair back sliding seat, central siphon is moved in sliding bit slice long slot bore, cause between adjacent sliding bit slice and pad the space to strengthen, make chair back sliding seat be adjusted back original position.Not only easy to adjust, safe in utilization, and serviceability is good, thus reach the purpose of this utility model.

Fig. 1, be the utility model structural representation stereogram.

Fig. 2, be the utility model decomposition texture schematic isometric.

Fig. 3, for the utility model structural representation cutaway view (when not adjusting).

Fig. 4, be A-A cutaway view among Fig. 3.

Fig. 5, be B portion partial enlarged drawing among Fig. 3.

Fig. 6, be the utility model structural representation cutaway view when angle of inclination (adjust).

Fig. 7, be C-C cutaway view among Fig. 6.

Fig. 8, be D portion partial enlarged drawing among Fig. 6.

Fig. 9, be the utility model structural representation cutaway view (adjust angle of inclination after).

Figure 10, be E-E cutaway view among Fig. 9.

Figure 11, for the utility model structural representation cutaway view (when desiring to readjust the angle of inclination).

Below in conjunction with accompanying drawing the utility model is further elaborated.

As shown in Figure 1 and Figure 2, the utility model comprises bearing seat 1, adjustment rack 2, connecting rod rest 3, chair back sliding seat 4, sliding position clip group 5, elastomer 6, latch 7 and adjusting lever 8.Wherein, bearing seat 1 be by the side plate 16 of the preceding board 14 of offering assembly hole 14, two correspondences, 16 ' and top board 15 constitute, its central authorities form accommodation space 18, bearing seat 1 top bearing Chain cushion, two corresponding side plates 16,16 ' offer the pin-and-hole 163,163 ' of locating hole 161, screw 162 and the coaxial line of coaxial line respectively in appropriate location, and offer the pivot hole 164,164 ' of coaxial line in biside plate 16,16 ' rear side appropriate location, use that it is articulated on the pivot hole 42 of chair back sliding seat 4.Adjustment rack 2 is to be made of assembled plate 21 and two corresponding support bodys 22,22 ', make progress little song and offer circular hole 211 of assembled plate 21 front ends, and 2 of adjustment racks form bearing space 27.Support body 22,22 ' side is by preceding corresponding pin-and-hole 223,223 ', prelocalization hole 222,222 ', the back locating hole 221,221 ' and pivot hole 225,225 ' of then offering in regular turn, in prelocalization hole 222,222 ' with back locating hole 221,221 ' between be provided with corresponding locating slot 224,224 '.The sliding bit slice 51 that sliding position clip group 5 has the pad 52 of circular hole by plural central authorities and has a long slot bore 511 alternates and combines, and running through on the pad 52 each long slot bore 511 on each circular hole and the sliding bit slice 51 with central siphon 53, the sliding bit slice 51 of plural number is with its long slot bore 511 relative central siphon 53 slippages.Sliding bit slice 51 lower end appropriate locations offer assembly hole 512,512 '.A sliding position clip group 5 is to be installed in the bearing space 27 of adjustment rack 2, and central siphon 53 places on 2 liang of support bodys of adjustment rack 22,22 ' locating slot 224,224 ' on it.

During assembling, adjustment rack 2 is installed in the accommodation space 18 of bearing seat 1 central authorities, sliding position clip group 5 places in the bearing space 27 of adjustment rack 2, and with two alignment pins 23,24 run through 2 liang of support bodys 22 of adjustment rack respectively, 22 ' prelocalization hole 222,222 ', back locating hole 221,221 ' and the assembly hole 512 of sliding bit slice 51,512 ', the sliding bit slice 51 of sliding position clip group 5 can be fixed in the adjustment rack 2, and with adjustment rack 2 action interlock, cover the central siphon 53 of elastomer 6 and sliding position clip group 5 with latch 7, in the locating hole 161 and screw 162 that latch 7 two ends is covered be fixed in bearing seat 1, and at one end pivot joint adjusting lever 8, its other end then screws togather fixing with nut 72 in fit spring 71 backs, adjust chair back sliding seat 4 by adjusting lever 8 controls, and drive sliding position clip group 5 to reach strong fix.

Connecting rod rest 3 offers symmetrical pivot hole 32 in the upper end, 32 ', and cover its upper pivot hole 32 by alignment pin 26,32 ' and 2 liang of support bodys 22 of adjustment rack, 22 ' upper pivot hole 225,225 ' to articulate with adjustment rack 2, connecting rod rest 3 lower ends then offer symmetrical pivot hole 31,31 ', and cover its upper pivot hole 31 by alignment pin 33,31 ' and chair back sliding seat 4 upper pivot holes 41 and articulating with chair back sliding seat 4, cover bearing seat 1 biside plate 16 with alignment pin 25 in addition, 16 ' goes up pin-and-hole 163,163 ' and 2 liang of support bodys 22 of adjustment rack, 22 ' goes up pin-and-hole 223,223 ', so that adjustment rack 2 is installed in the bearing seat 1.Board 14 below devices have big spring 12 before the bearing seat 1, and before from top to bottom covering by screw rod 11 behind the circular hole 211 and big spring 12 of assembly hole 17, adjustment rack 2 assembled plate 21 of board 14, adjust button 13 with an intensity and be screwed together in screw rod 11 bottoms, adjust the adjustment of 13 pairs of big spring 12 elasticities of button by intensity, make and to control adjustment rack 2 and move required active force.

As Fig. 3, Fig. 4, shown in Figure 5, when under adjusting lever 8 is, pulling state, sliding position clip group 5 is relaxed state with elastomer 6 in adjustment rack 2, be that 52 spaces of adjacent sliding bit slice 51 and pad are bigger, thereby make that chair back sliding seat 4 is adjusted, this moment, 53 of central siphons were positioned at sliding bit slice 51 long slot bores 511 first halves.As Fig. 6, Fig. 7, shown in Figure 8, when adjusting when chair back sliding seat 4 is receded, it is drivening rod frame 3, and drive adjustment rack 2 then and move up backward, and sliding bit slice 51 also with moving on the adjustment rack 2 and on move, and make the central siphon 53 of sheathed pad 52 be positioned at sliding bit slice 51 long slot bores 511 Lower Halves relatively.When chair back sliding seat 4 tilts to the appropriate location, being about to adjusting lever 8 up pulls, the spring 71 so that latch 7 outer tension and compression are contracted, and and then the compressing elastomer 6, make the space of 52 on the sliding position of its packing clip group 5 each sliding bit slice 51 and pad, sliding bit slice 51 can not be moved, thereby make adjustment rack 2 and chair back sliding seat 4 reach strong fix, even pull adjusting lever for 8 times this moment, also can not become flexible.

As Fig. 9, Figure 10, shown in Figure 11, when desire is adjusted to original position with the chair back, promptly impose backward an active force to chair back sliding seat 4, when this active force imposes on the active force of bearing seat 1 greater than big spring 12, bearing seat 1 promptly then moves with 4 layback of chair back sliding seat, and central siphon 53 is moved in sliding bit slice 51 long slot bores 511, and cause 52 spaces increasings of adjacent sliding bit slice 51 and pad, make chair back sliding seat 4 be adjusted back original position.

As mentioned above, the utility model has really can make the user adjust the fixedly luffing angle of the chair back easily, and can suitably adjust chair back inclination intensity holding capacity according to its active force, with strong fix, thereby more promote seat user safety and comfortable effect.

Claims

1, a kind of chair back inclination adjusting device, it comprises chair back sliding seat and adjusting lever, it is characterized in that it also comprises bearing seat, adjustment rack, connecting rod rest, sliding position clip group, elastomer and latch; Bearing seat central authorities form accommodation space; The adjustment rack rear portion forms the bearing space; The sliding bit slice that sliding position clip group has the pad of circular hole by plural central authorities and has a long slot bore alternates and combines, and runs through each circular hole and long slot bore on pad and the sliding bit slice with central siphon, and central siphon plural number is relatively slided the slippage of bit slice long slot bore; The bearing seat articulates with its rear end and the chair back sliding seat outside; Adjustment rack is installed in the bearing seat accommodation space, and articulates with connecting rod rest, and the other end of connecting rod rest and chair back sliding seat are inboard to articulate, and the clip assembling of sliding position is located in the adjustment rack bearing space; Latch two ends of passing the central siphon of elastomer and sliding position clip group are installed on the bearing seat, and one end and adjusting lever pivot joint, its other end then screw togather behind the fit spring fixing with nut.

2, chair back inclination adjusting device according to claim 1, it is characterized in that described bearing seat system is made of the side plate and the top board of the preceding board of offering assembly hole, two correspondences, two corresponding side plates offer the pin-and-hole of locating hole, screw and the coaxial line of coaxial line respectively in appropriate location, and offer the pivot hole of coaxial line in biside plate rear side appropriate location; Adjustment rack system is made of assembled plate and two corresponding support bodys, make progress little song and offer circular hole of assembled plate front end; The support body side is provided with corresponding locating slot by preceding corresponding pin-and-hole, prelocalization hole, back locating hole and the pivot hole of then offering in regular turn between prelocalization hole and back locating hole.

3, chair back inclination adjusting device according to claim 1 and 2, board below device has big spring before it is characterized in that described bearing seat, and before from top to bottom covering by screw rod behind the circular hole and big spring of assembly hole, the adjustment rack assembled plate of board, adjust button with an intensity and be screwed together in the screw rod bottom, adjust the adjustment of button the big spring elasticity by intensity.