CN201011963Y

CN201011963Y - Chair back adjusting structure

Info

Publication number: CN201011963Y
Application number: CN 200620164656
Authority: CN
Inventors: 王自强
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-12-22
Filing date: 2006-12-22
Publication date: 2008-01-30
Anticipated expiration: 2016-12-22

Abstract

The utility model relates to a chair back adjusting structure. A registered main support and a registered base are inclined between a chair back support and a chair cushion support; a limit assembly is arranged on the bottom side of the middle section of the main support, and a positioning part protrudes and extends from the top side of the middle section of the main support; the bottom side of the opening on one end of the registered base which is engaged with the main support is provided with a longitudinally extending groove channel, for insertion of the limit assembly and formation of a sliding steer; the top side of the registered base is provided with a positioning part with the same spacing, for elastic sliding, insertion, topping and positioning of the positioning part on the top side of the main support; a positioning mechanism laterally goes through the middle section of the registered base by a shaft lever with rotational handle; the middle section of the shaft lever is provided with at least a clipping assembly which is at least provided with a protruding rejecting convex part, so that the clipping assembly can rejects the surface and side of the main support with the rejecting convex part as rotation of the shaft lever and position. When operated, the utility model can synchronously change the distance and the height of the chair back relative to the seat cushion, so as to adjust all supporting parts of the chair depending on the height of human body.

Description

Chair back is adjusted structure

Technical field

The utility model is adjusted structure relevant for Chair back, is meant especially a kind ofly to adapt to the different human body stature and the simple and easy structure of promptly adjusting the back support position and the seat cushion degree of depth.

Background technology

Traditional office seating, easy structure, its seat cushion is to adopt the combination that interfixes with combining of the chair back, and this kind structure can't have any adjustment action between the seat cushion and the chair back, and the comfortableness during seat is not good; And progressive structure, have seat cushion is combined with chair back pivot joint, and articulate position in it and support this chair back with an elastic parts, elastics wing backward when making this chair back stressed, to form the human body back support effect of similar rocking chair, its comfortableness of this kind structure is preferable, but can't adapt to the different human body stature and make back support in the optimum position, for taller and bigger or short and small user, still have the back of the body, the puzzlement that lumbar support is not good, the armchair structure that other has the seat cushion and the chair back to adjust respectively, but its operation the time need leave seat cushion and can finish, and forms a defective of using.

Because existing Chair back is adjusted structure above-mentioned shortcoming is arranged, the designer improves at those shortcoming researchs, develops the utility model finally.

The utility model content

Main purpose of the present utility model is to provide a kind of Chair back to adjust structure, but its when operation the synchronous change chair back with respect to the distance and the height of seat cushion, with different and adjust each support zone of seat, to reach the effect of best sitting posture according to the human body stature.

Another purpose of the present utility model is to provide a kind of Chair back to adjust structure, and it forms the with low cost of assembly, has preferable economic benefit.

A purpose more of the present utility model is to provide a kind of Chair back to adjust structure, and it is when the bearing height of the synchronous adjustment chair back and depth location, and the user need not leave seat cushion, has the rapid and easy-to-use characteristics of operation.

The utility model is for reaching above-mentioned purpose and effect, the technological means that it adopted is that a kind of Chair back is adjusted structure, comprise: a main support, it is a hollow pipe support, the oblique chairback brace below that is incorporated into, one end, be provided with a limit assembly that protrudes out downwards in this bottom side, main support stage casing, then protrude out positioning piece in top side, main support stage casing; One nested base, be sleeved on the outer peripheral edges of this main support, the oblique chair cushion support side that is incorporated in one end, be provided with the guiding conduit of a longitudinal extension in the end opening bottom side that this nested base is connected with main support, the limit assembly of this main support can form the guiding of a mutual slippage for stretch into, then be provided with an equidistant location division in this nested base top side, can after slippage, embed for the keeper of this main support top side and replace the location; One location mechanism, the axostylus axostyle that revolves handle with a tool laterally runs through this nested base stage casing, be provided with the clip assembly that at least one tool projection is replaced protuberance in this axostylus axostyle stage casing, revolve drive this clip assembly rotation via axostylus axostyle by this, can make and replace the table side that protuberance presses on main support, make this main support, nested base can be positioned the extension position of this stretching.

By the above as can be known, the utility model is significant with respect to the effect of prior art, has the following advantages:

But one, the utility model in when operation the synchronous change chair back with respect to the distance and the height of seat cushion, with different and adjust each support zone of seat, to reach the effect of best sitting posture according to the human body stature.

Two, composition assembly of the present utility model is with low cost, has preferable economic benefit.

Three, the utility model is when the bearing height of the synchronous adjustment chair back and depth location, and the user need not leave seat cushion, has the rapid and easy-to-use characteristics of operation.

Description of drawings

Fig. 1 is the structure decomposition map of the utility model first embodiment.

Fig. 2 is the part combination schematic diagram of the utility model first embodiment.

Fig. 3 is the solid combination schematic diagram of the utility model first embodiment.

Fig. 4 is that the A-A of first embodiment among the utility model Fig. 3 is to combination of side view.

Fig. 5 is the stretching schematic diagram of the utility model first embodiment.

Fig. 6 is the contractive action schematic diagram of the utility model first embodiment.

Fig. 7 is the structure decomposition map of the utility model second embodiment.

Fig. 8 is the combination of side view of the utility model second embodiment.

The component symbol explanation

1,10........... main support 12,102......... locating hole

13,103......... positioning seat 131............. shrinkage pool

132,33......... elastic parts 133............. keeper

14.............. bolt 141............. nut

15.............. anti-slip section 17.............. gear

2,20........... nested base 21.............. location indentations

22.............. hollow-out parts 23.............. guides conduit

The hole 24.............. perforation 25.............. hook is pulled

26.............. tooth bar 261............. tooth portion

3............... detent mechanism 31.............. axostylus axostyle

311............. revolve 32.............. clip assembly

321............. replace protuberance 4............... chairback brace

40.............. chair back 41.............. protuberance

5............... chair cushion support 50.............. seat cushions

The specific embodiment

As for detailed construction of the present utility model, application principle, effect and effect, then the explanation of doing with reference to following adjoint can be understood completely:

Fig. 1 is the structure decomposition map of the utility model first embodiment, with reference to Fig. 2,3,4 part, entire combination schematic diagram and combination of side view, can clearly find out that the structure of the utility model first embodiment mainly comprises by it:

Main support 1, nested base 2 and detent mechanism 3 etc. are partly, wherein this main support 1 is a hollow tube, the one end can be inserted by the protuberance 41 of the chairback brace oblique extension in 4 belows and be incorporated into chairback brace 4 belows, be provided with a perforation in this stage casing, main support 1 bottom side, can run through and screw togather a nut 141 for a bolt 14, then be provided with the groove of a longitudinal extension in this main support 1 top side, establish a locating hole 12 in this groove stage casing, can supply a ccontaining positioning seat 13, then be provided with a shrinkage pool 131 in these positioning seat 13 top sides, in this shrinkage pool 131, be provided with outwards pushing and pressing positioning piece 133 of an elastic parts 132, two other table sides in main support 1 then are provided with anti-slip section 15, this anti-slip section 15 can directly make it roughening in Surface Machining, or with anti-skidding material covering, make it to have preferable frictional force, big frictional force is provided, nested base 2 is the outer peripheral edges that are sleeved on this main support 1 other end with an end, then oblique chair cushion support 5 sides that are incorporated in the other end of nested base 2, be provided with the guiding conduit 23 of a longitudinal extension in this nested base 2 and the opening bottom side of main support 1 cohesive end, the nut 141 of this main support 1 can form main support 1 for stretch into, the guiding of nested base 2 mutual slippages, be provided with a perforation 24 in these nested base 2 top face two sides, and side is provided with hollow-out parts 22 in this perforation 24, these nested base 2 end faces then are provided with the location indentations 21 of a plurality of vertical arrangements in keeper 133 sliding paths of corresponding main support 1, detent mechanism 3 revolves with a tool and 311 axostylus axostyle 31 run through the perforation 24 of this nested base 2 and can be horizontally set at above nested base 2 stage casings, be provided with two in these axostylus axostyle 31 stage casings and have the clip assembly 32 that projection is replaced protuberance 321, and clip assembly 32 table sides and be held in the default hook of these nested base nested base 2 sides hole 25 of pulling with an elastic parts 33 hooks make this clip assembly 32 have an elasticity of replying.

Fig. 5,6 is the stretching, extension of the utility model first embodiment, the contractive action schematic diagram, shown in this two figure, working as the user as can be known complies with different statures and adjusts this chair back 40, the height of seat cushions 50 and apart from the time, via this chairback brace 4 (combining) with the chair back 40, the interlock of chair cushion support 5 (combining) with seat cushions 50, can make this main support 1, nested base 2 produces the variation that stretches or shrink mutually, at this moment, the keeper 133 of main support 1 can be in 21 springs of a plurality of location indentations slippage of nested base 2, and form clips in the location indentations 21 of embedding appropriate location, then, the user can stir revolving of this detent mechanism 3 and rotate 311 to order about this axostylus axostyle 31, via this this clip assembly 32 of axostylus axostyle 31 interlocks, can make and replace protuberance 321 presses on main support 1 two sides downwards by the hollow-out parts 22 of nested base 2 anti-slip section 15, with this main support 1, nested base 2 is positioned the extension position of this stretching, so that this chair back 40, seat cushions 50 is positioned this adjusted height and distance.

In the said structure of the present utility model, because this main support 1, nested base 2 tiltedly are located between the chair back 40, the seat cushions 50, therefore, in case this main support 1, nested base 2 produce flexible length variations, the variation that can make this chair back 40 and seat cushions 50 produce height range synchronously, be convenient to the Support Position that the user can adjust the chair back 40 easily, reach the sitting posture of the most comfortable to adapt to the different bodily forms; And in practical application, each location indentations 21 of this nested base 2 is not limited to general concave shape, and it also can be set as the perforation of the little position of tool hollow out in central authorities.

Fig. 7,8 is structure decomposition map and the combination of side view of the utility model second embodiment, shown in this two figure, the structure of the utility model second embodiment is based on aforementioned the utility model first embodiment as can be known, its difference only is that these main support 10 top sides are provided with locating hole 102, can supply a ccontaining positioning seat 103, in this positioning seat 103, be pivoted with a gear 17, then relative position is provided with a tooth bar 26 to this nested base 20 in the top side, these tooth bar 26 avris are provided with a plurality of equidistant tooth portions 261, make this gear 17 be embedded in each tooth portion 261 of this tooth bar 26, can form the locating effect of a tool slippage function; And all the other each structure and actions are then identical with aforementioned first embodiment, seldom give unnecessary details at this.

To sum up, Chair back adjustment structure of the present utility model has the facility of adjustment really and locatees certain effect.

But the above is preferred embodiment of the present utility model only, is not to be used for limiting the scope that the utility model is implemented.Be that all equalizations of being done according to the utility model claims change and modification, all should belong to claim of the present utility model.

Claims

1. a Chair back is adjusted structure, it is characterized in that, comprises at least:

One main support is a hollow pipe support, and the oblique chairback brace below that is incorporated into, one end is provided with a limit assembly that protrudes out downwards in this bottom side, main support stage casing, then protrudes out positioning piece in top side, main support stage casing;

One nested base, be sleeved on the outer peripheral edges of this main support, the oblique chair cushion support side that is incorporated in one end, be provided with the guiding conduit of a longitudinal extension in the end opening bottom side that this nested base is connected with main support,, the limit assembly of this main support forms the guiding of a mutual slippage for stretching into, then be provided with an equidistant location division in this nested base top side, the keeper of this main support top side of confession embeds after slippage replaces the location;

One location mechanism, be laterally to run through this nested base stage casing with the axostylus axostyle that a tool revolves, be provided with the clip assembly that at least one tool projection is replaced protuberance in this axostylus axostyle stage casing, revolve by this and to rotate to make and replace the table side that protuberance presses on main support, this main support, nested base are positioned the extension position of this stretching drive this clip assembly via axostylus axostyle.

2. Chair back as claimed in claim 1 is adjusted structure, it is characterized in that this limit assembly is a bolt that screws togather mutually and a nut.

3. Chair back as claimed in claim 1 is adjusted structure, it is characterized in that, this main support table side compresses the position with respect to the clip assembly of detent mechanism and is provided with more coarse anti-slip section.

4. Chair back as claimed in claim 1 is adjusted structure, it is characterized in that, the clip component table side of this detent mechanism is held in this nested base side with an elastic parts hook in addition, and this clip assembly has an elasticity of replying after axostylus axostyle loosens.

5. Chair back as claimed in claim 1 is adjusted structure, it is characterized in that, this equidistant location division is the equally spaced location indentations of a plurality of tools, this keeper then is placed in the default shrinkage pool of a positioning seat, in this shrinkage pool and have an elastic parts outwards to push against this keeper, and this positioning seat runs through and is arranged in the default locating hole in main support top side.

6. Chair back as claimed in claim 5 is adjusted structure, it is characterized in that each location indentations central authorities of this nested base are the perforation shapes that are hollow out.

7. Chair back as claimed in claim 1 is adjusted structure, it is characterized in that, this equidistant location division is the tooth bar of a plurality of equidistant tooth of tool portion, and this keeper is then for being placed in the gear a positioning seat in, and this positioning seat runs through and is arranged in the locating hole of presetting the main support top side.

8. Chair back as claimed in claim 1 is adjusted structure, it is characterized in that, this main support table side compresses the position with respect to the clip assembly of detent mechanism and covered by anti-skidding material.