CN203860828U - Fixed point bending structure of chair back frame - Google Patents
Fixed point bending structure of chair back frame Download PDFInfo
- Publication number
- CN203860828U CN203860828U CN201420144336.0U CN201420144336U CN203860828U CN 203860828 U CN203860828 U CN 203860828U CN 201420144336 U CN201420144336 U CN 201420144336U CN 203860828 U CN203860828 U CN 203860828U
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- China
- Prior art keywords
- fixed point
- change
- over switch
- section
- soft section
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Abstract
The utility model discloses the fixed point bending structure of a chair back frame, wherein the chair back frame is a rod piece capable of extending from bottom to top; the lower end of the chair back frame is connected with a chair chassis; the fixed point bending structure comprises a soft section capable of deforming elastically, as well as an upper hard section and a lower hard section connected onto the two ends of the soft section; a transverse groove is formed in the rear side surface of the soft section; the soft section is connected with the two hard sections to form the chair back frame. According to the utility model, the fixed point bending structure enables the chair back frame to have a certain bending deflection capacity at a designated position, so that the using comfort level of the chair is improved.
Description
Technical field
The utility model relates to a kind of seat component, is specifically related to a kind of fixed point warp architecture of chair backrest.
Background technology
In existing office seating, backrest is formed by connecting by the chair back and chair back rack conventionally, and wherein, the chair back is used for arranging screen cloth or cortical face cloth, is the parts at direct support human body back; Chair back rack, for connecting chair chassis and the chair back, is effectively fixed the chair back.The rigid bar that existing chair back rack is normally made by hard material, the deficiency of its existence is: when user's back relies on backrest, the local location at back (for example, at upper back) sometimes also needs the certain angle of further swinging back, to obtain more comfortable sitting posture, this just requires chair back rack to have certain crooked deformability at assigned address, yet the chair back rack of rigidity does not obviously possess this function.
Utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, and a kind of fixed point warp architecture of chair backrest is provided, and this fixed point warp architecture can allow chair back rack have certain crooked deformability in the position of appointment, has improved the comfortableness that seat is used.
The technical scheme that the utility model solves the problems of the technologies described above is:
A fixed point warp architecture for chair backrest, wherein, described chair back rack is a rod member extending from bottom to top, the lower end of this chair back rack is connected with Chair underframe; Described fixed point warp architecture comprises soft section of elastically deformable and be connected in two hard sections up and down at these soft section of two ends, and wherein, the rear side surface of described soft section is provided with the groove of horizontally set; Described soft section and two chair back racks that hard sections link together described in forming.
A preferred version of the present utility model, wherein, also comprise firm elasticity switching mechanism, this firm elasticity switching mechanism comprises the brace being arranged on along the vertical direction on soft section, the upper end of this brace is stiff end, this stiff end is fixedly connected in hard section, and lower end is free end, and this free end extends to lower hard section place;
Described lower hard section is provided with the change-over switch that can laterally slide, and this change-over switch is rigid state while sliding into wherein one end, is elastic stage while sliding into the other end; The free end of described brace is provided with hook, and when change-over switch is during in rigid state, this change-over switch extend in described hook, and when change-over switch is during in elastic stage, this change-over switch is positioned at outside described hook.
The operation principle of above-mentioned elasticity switching mechanism is: when soft section backward during flexural deformation, described brace can upwards produce certain displacement, and when described change-over switch is during in rigid state, this change-over switch extend in the hook of brace, thereby moving upward of brace caused to obstruction, brace cannot be moved upward, and therefore the flexural deformation of soft section is also restricted, and now soft section is equivalent to rigid body; And when described change-over switch is during in elastic stage, this change-over switch is positioned at outside the hook of brace, brace can freely move upward, and soft section can be freely crooked.
By above-mentioned firm elasticity switching mechanism is set, whether user can independently select to need chair back rack crooked, to meet the needs of different use occasions.
A preferred version of the present utility model, wherein, described soft section is provided with for holding the mounting groove of described brace; Described lower hard section is provided with for holding the free-ended holding tank of brace, and the side direction of this holding tank is connected with for the gathering sill of change-over switch is installed; The top of described holding tank and gathering sill is provided with cover plate.By said structure, realized the installation of brace and change-over switch, allowed brace be hidden in chair back rack, specious.
A preferred version of the present utility model, wherein, described change-over switch is formed by connecting with the stop part that is positioned at below by the pushing portion that is positioned at top, between described pushing portion and stop part, there is gap, the free end of described brace passes from this gap, and the hook on this brace is adjacent on described stop part.The effect that pushing portion is set is conveniently to control this change-over switch, and the effect that stop part is set is the hook of brace to carry out spacing.
A preferred version of the present utility model, wherein, the side of described change-over switch is provided with breach, and the edge of described cover plate extend in this breach.By the coordinating of pressing plate edge and breach, the location of realization to change-over switch, prevents that change-over switch from getting loose like this.
A preferred version of the present utility model, wherein, described groove is a plurality of, these grooves are arranged in order from top to bottom.By a plurality of grooves are set, make soft section of all flexible distortion at a plurality of positions, result of use is better.
A preferred version of the present utility model, wherein, described fixed point warp architecture is arranged at the middle and upper part of chair back rack.This position, corresponding to back on human body, is the often position of activity of user, and the warp architecture of fixing a point arranges this position, allows the upper back of human body obtain comfortable resiliency supported.
A preferred version of the present utility model, wherein, the syndeton between described soft section and hard section is: in described soft section, be embedded with rigid disk, stretch out outside soft section one end of this rigid disk, and this extension is inserted in hard section and is fixedly connected with it.When soft section of injection moulding, rigid disk as embedded component and soft section one-body molded, during assembling, by rigid disk and the fixing connection that can realize soft section and hard section of hard section, assembling is simple, is connected firmly.
Operation principle of the present utility model is: due to the parts of soft section elastically deformable, therefore, when human body produces the active force of layback to chair back rack, this soft section just can produce certain distortion; And, because the rear side surface at soft section is provided with the groove of horizontally set, make this groove become weak part, more yielding, not only can increase deflection, and it is crooked to have realized fixed point.
The utility model compared with prior art has following beneficial effect:
1, can allow chair back rack there is certain crooked deformability in the position of appointment, improve the comfortableness that seat is used.
2, simple in structure, production cost is low.
Accompanying drawing explanation
Fig. 1 is the perspective view of a specific embodiment of the fixed point warp architecture of chair backrest of the present utility model.
Fig. 2 is the structural representation at another visual angle of Fig. 1.
Fig. 3 is the explosive view of Fig. 2.
Fig. 4 is that Fig. 5 is the structural representation of soft section in Fig. 1, and wherein, Fig. 4 is front view, and Fig. 5 is left view (cutaway view).
Fig. 6 is the perspective view of brace in Fig. 2.
Fig. 7 is the perspective view of change-over switch in Fig. 2.
Fig. 7 is that the warp architecture of fixing a point shown in Fig. 1 is applied to the structural representation on seat.
Fig. 8 is the structural representation of warp architecture after being applied on seat of fixing a point shown in Fig. 1.
The specific embodiment
Below in conjunction with embodiment and accompanying drawing, the utility model is described in further detail, but embodiment of the present utility model is not limited to this.
Referring to Fig. 1, Fig. 4, Fig. 5, Fig. 8, chair backrest 2 of the present utility model is a rod member extending from bottom to top, and the lower end of this chair back rack 2 is connected with Chair underframe; Described fixed point warp architecture comprises soft section of 2-1 of elastically deformable and is connected in two hard sections up and down at these soft section of 2-1 two ends, and wherein, the rear side surface of described soft section of 2-1 is provided with the groove 2-11 of horizontally set.Described soft section of 2-1 and two hard sections link together and form described chair back rack 2.
Referring to Fig. 4 and Fig. 5, described groove 2-11 is a plurality of, and these grooves 2-11 is arranged in order from top to bottom, makes soft section of 2-1 on above-below direction, have a plurality of bending points.Described fixed point warp architecture is arranged at the middle and upper part of chair back rack 2, and corresponding user's upper back allows this position of human body obtain comfortable resiliency supported.
Referring to Fig. 3, syndeton between described soft section of 2-1 and hard section is: in the two ends of described soft section of 2-1, be all embedded with rigid disk 6, stretch out outside soft section of 2-1 one end of this rigid disk 6, and this extension is inserted in the connecting hole that is located at hard section, and both are fixedly connected with by screw.When soft section of 2-1 of injection moulding, rigid disk 6 is one-body molded as embedded component and soft section of 2-1, and during assembling, by rigid disk 6 and the fixing connection that can realize soft section of 2-1 and hard section of hard section, assembling is simple, is connected firmly.
Referring to Fig. 3, Fig. 4, Fig. 6 and Fig. 7, described fixed point warp architecture also comprises firm elasticity switching mechanism, this firm elasticity switching mechanism comprises and is arranged on along the vertical direction the soft section of brace 3 on 2-1, the upper end of this brace 3 is stiff end, this stiff end is fixedly connected on hard section 2-2, lower end is free end, and this free end extends to lower hard section 2-3 place.
Referring to Fig. 3, Fig. 4, Fig. 6 and Fig. 7, described lower hard section 2-3 is provided with the change-over switch 4 that can laterally slide, and this change-over switch 4 is rigid state while sliding into wherein one end, is elastic stage while sliding into the other end; The free end of described brace 3 is provided with hook 3-1, and when change-over switch 4 is during in rigid state, this change-over switch 4 extend in described hook 3-1, and when change-over switch 4 is during in elastic stage, this change-over switch 4 is positioned at outside described hook 3-1.
Referring to Fig. 3, Fig. 4, Fig. 6 and Fig. 7, described soft section of 2-1 is provided with for holding the mounting groove 2-12 of described brace 3, and brace 3 is arranged in this mounting groove 2-12, and is fixedly connected with soft section of 2-1 by screw; Described lower hard section 2-3 is provided with for holding the free-ended holding tank 2-31 of brace 3, and the side direction of this holding tank 2-31 is connected with for the gathering sill 2-32 of change-over switch 4 is installed, and change-over switch 4 is done laterally to slide in this gathering sill 2-32; The top of described holding tank 2-31 and gathering sill 2-32 is provided with cover plate 5.
Referring to Fig. 3, Fig. 4, Fig. 6 and Fig. 7, described change-over switch 4 is formed by connecting with the stop part 4-2 that is positioned at below by the 4-1 of pushing portion that is positioned at top, wherein, the 4-1 of pushing portion is for controlling change-over switch 4, stop part 4-2 is for stopping spacing to the hook 3-1 of brace 3, between the described pushing 4-1 of portion and stop part 4-2, have gap, the free end of described brace 3 passes from this gap, and the hook 3-1 on this brace 3 is adjacent on described stop part 4-2.
Referring to Fig. 2 and Fig. 7, the side of described change-over switch 4 is provided with breach 4-3, and the edge of described cover plate 5 extend in this breach 4-3, thereby it is spacing to utilize the side of cover plate 5 to carry out change-over switch 4, prevents from getting loose.
Referring to Fig. 1～Fig. 8, the operation principle of above-mentioned elasticity switching mechanism is: when soft section of 2-1 is backward during flexural deformation, described brace 3 can upwards produce certain displacement, and when described change-over switch 4 is during in rigid state, this change-over switch 4 extend in the hook 3-1 of brace 3, thereby moving upward of brace 3 caused to obstruction, and brace 3 cannot be moved upward, therefore the flexural deformation of soft section of 2-1 is also restricted, and now soft section of 2-1 is equivalent to rigid body; And when described change-over switch 4 is during in elastic stage, this change-over switch 4 is positioned at outside the hook 3-1 of brace 3, brace 3 can freely move upward, and soft section of 2-1 can be freely crooked.By above-mentioned firm elasticity switching mechanism is set, user can independently select whether to need chair back rack 2 bendings, to meet the needs of different use occasions.
Above-mentioned is preferably embodiment of the utility model; but embodiment of the present utility model is not subject to the restriction of foregoing; other any do not deviate from change, the modification done under Spirit Essence of the present utility model and principle, substitutes, combination, simplify; all should be equivalent substitute mode, within being included in protection domain of the present utility model.
Claims (8)
1. a fixed point warp architecture for chair backrest, wherein, described chair back rack is a rod member extending from bottom to top, the lower end of this chair back rack is connected with Chair underframe; It is characterized in that, described fixed point warp architecture comprises soft section of elastically deformable and be connected in two hard sections up and down at these soft section of two ends, and wherein, the rear side surface of described soft section is provided with the groove of horizontally set; Described soft section and two chair back racks that hard sections link together described in forming.
2. the fixed point warp architecture of chair backrest according to claim 1, it is characterized in that, also comprise firm elasticity switching mechanism, this firm elasticity switching mechanism comprises the brace being arranged on along the vertical direction on soft section, the upper end of this brace is stiff end, this stiff end is fixedly connected in hard section, and lower end is free end, and this free end extends to lower hard section place;
Described lower hard section is provided with the change-over switch that can laterally slide, and this change-over switch is rigid state while sliding into wherein one end, is elastic stage while sliding into the other end; The free end of described brace is provided with hook, and when change-over switch is during in rigid state, this change-over switch extend in described hook, and when change-over switch is during in elastic stage, this change-over switch is positioned at outside described hook.
3. the fixed point warp architecture of chair backrest according to claim 2, is characterized in that, described soft section is provided with for holding the mounting groove of described brace; Described lower hard section is provided with for holding the free-ended holding tank of brace, and the side direction of this holding tank is connected with for the gathering sill of change-over switch is installed; The top of described holding tank and gathering sill is provided with cover plate.
4. the fixed point warp architecture of chair backrest according to claim 3, it is characterized in that, described change-over switch is formed by connecting with the stop part that is positioned at below by the pushing portion that is positioned at top, between described pushing portion and stop part, there is gap, the free end of described brace passes from this gap, and the hook on this brace is adjacent on described stop part.
5. the fixed point warp architecture of chair backrest according to claim 4, is characterized in that, the side of described change-over switch is provided with breach, and the edge of described cover plate extend in this breach.
6. according to the fixed point warp architecture of the chair backrest described in claim 1～5 any one, it is characterized in that, described groove is a plurality of, and these grooves are arranged in order from top to bottom.
7. according to the fixed point warp architecture of the chair backrest described in claim 1～5 any one, it is characterized in that, described fixed point warp architecture is arranged at the middle and upper part of chair back rack.
8. the fixed point warp architecture of chair backrest according to claim 1, it is characterized in that, syndeton between described soft section and hard section is: in described soft section, be embedded with rigid disk, stretch out outside soft section one end of this rigid disk, and this extension is inserted in hard section and is fixedly connected with it.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420144336.0U CN203860828U (en) | 2014-03-26 | 2014-03-26 | Fixed point bending structure of chair back frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420144336.0U CN203860828U (en) | 2014-03-26 | 2014-03-26 | Fixed point bending structure of chair back frame |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203860828U true CN203860828U (en) | 2014-10-08 |
Family
ID=51641821
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420144336.0U Expired - Fee Related CN203860828U (en) | 2014-03-26 | 2014-03-26 | Fixed point bending structure of chair back frame |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203860828U (en) |
-
2014
- 2014-03-26 CN CN201420144336.0U patent/CN203860828U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141008 Termination date: 20210326 |