CN208524256U - A kind of chair back rack - Google Patents
A kind of chair back rack Download PDFInfo
- Publication number
- CN208524256U CN208524256U CN201820893778.3U CN201820893778U CN208524256U CN 208524256 U CN208524256 U CN 208524256U CN 201820893778 U CN201820893778 U CN 201820893778U CN 208524256 U CN208524256 U CN 208524256U
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- chair back
- interconnecting piece
- several
- hole
- rotating shafts
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Abstract
The utility model relates to a kind of chair back racks, comprising: lumbar support is arranged in chair back connecting corner yard, chair back frame, the chair back frame middle and lower part, in which: several interior protruded stigmas be set in chair back connecting corner yard upper end, top is arranged upper through-hole, upper screw hole is arranged below interior protruded stigma；Empty slot is arranged in the interconnecting piece of setting indent in the middle part of lumbar support, interconnecting piece middle part, and lower half circular groove is arranged in interconnecting piece two sides, and interconnecting piece upper and lower is symmetrically arranged several inner bolt holes, protruded stigma after the setting of back top is several；Chair back cover board upper and lower is symmetrically arranged several accessibke porosities, and upper half-round slot is inverted in the setting of chair back cover board rear portion two sides；Rotating shafts be it is flat T-shaped, shaft is arranged in rear portion two sides, and bearing is socketed in shaft, and inner via hole is arranged in Rotating shafts front；The perfect condition that human body uses can be adapted to automatically with multi-angle using the chair back of the utility model.
Description
Technical field
The utility model relates to furniture manufacturing fields, in particular to a kind of to be used for swivel chair chair back rack.
Background technique
Swivel chair on existing market carries out corresponding reclining function generally by chassis structure, is pressurized above the chair back, chair
Back process backward, waist can be in vacant state, and support can not be bonded according to body curve, meanwhile, when human body left-right rotation, chair
Back has opposite separation with human body, and the chair back cannot be close to from beginning to end the physiological curve of human body back and follow rotation, cause to relax
Suitable sense is poor.
Summary of the invention
The purpose of the utility model is to provide a kind of chair back racks of energy multi-angle Synchronous rotation.
The utility model is realized in this way a kind of chair back rack, comprising: chair back connecting corner yard (1), chair back frame (2), described
Lumbar support (3) are arranged in chair back frame (2) middle and lower part, wherein；
Several interior protruded stigmas (11) are set in chair back connecting corner yard (1) upper end, top is arranged upper through-hole (12), under interior protruded stigma (11)
Upper screw hole (14) are arranged in side；
Empty slot (311) are arranged in the interconnecting piece (31) of setting indent in the middle part of lumbar support (3), interconnecting piece (31) middle part, even
Lower half circular groove (312) are arranged in socket part (31) two sides, and interconnecting piece (31) upper and lower is symmetrically arranged several inner bolt holes (313), carry on the back
Protruded stigma (314) after the setting of portion top is several；
Chair back cover board (4) upper and lower is symmetrically arranged several accessibke porosities (41), the setting of chair back cover board (4) rear portion two sides
It is inverted upper half-round slot (42)；
Rotating shafts (5) be it is flat T-shaped, shaft (51) are arranged in rear portion two sides, and bearing (52) is socketed on shaft (51),
Inner via hole (53) are arranged in Rotating shafts (5) front；
The Rotating shafts (5) pass through empty slot (311) protrude outward, the left and right and upper outer edges of Rotating shafts (5) with
There are gap, the bearing (52) is placed on lower half circular groove (312) empty slot (311) outer edge, and chair back cover board (4) lid closes
In on interconnecting piece (31), outer bolt (43) passes through accessibke porosity (41) and inner bolt hole (313) screw-tightened, the upper half-round slot (42)
Conjunction is mutually covered with lower half circular groove (312), several spring (6) both ends are socketed with interior protruded stigma (11) and rear protruded stigma (314) respectively, upper bolt
(13) through-hole (12), inner via hole (53) and upper screw hole (14) screw-tightened are each passed through.
Axle sleeve (531) are set in the inner via hole (53).
The good effect of the utility model, the opposite chair back connecting corner yard of chair back frame energy of the utility model, certainly with multi-angle
The dynamic perfect condition for adapting to human body and using, carries out comprehensive support support, when chair back rack is assembled into the complete chair back, human body exists
When reclining backward and left-right rotation, the chair back can press according to human body, and dynamics is full-time to provide comprehensive support support, reaches ideal
Multi-angle Synchronous rotation using effect.
Detailed description of the invention:
Fig. 1 is the utility model main view；
Fig. 2 is the utility model main view exploded view；
The utility model rear exploded view of Fig. 3；
The utility model chair back frame main view exploded view of Fig. 4；
Fig. 5 is utility model chair back frame rear exploded view；
Fig. 6 is the utility model perspective view of the explosion.
Specific embodiment
A kind of chair back rack described in the utility model is described in further detail with reference to the accompanying drawing.
As shown in figures 1 to 6, a kind of chair back rack, including chair back connecting corner yard 1, chair back frame 2,2 middle and lower part of chair back frame are set
Set lumbar support 3, wherein several interior protruded stigmas 11 are set in 1 upper end of chair back connecting corner yard, upper through-hole 12, interior protruded stigma is arranged in top
Upper screw hole 14 is arranged in 11 lower sections, and the interconnecting piece 31 of indent is arranged in the middle part of lumbar support 3, empty slot 311 is arranged in the middle part of interconnecting piece 31,
Lower half circular groove 312 is arranged in 31 two sides of interconnecting piece, and 31 upper and lower of interconnecting piece is symmetrically arranged several inner bolt holes 313, interconnecting piece 31
Protruded stigma 314 after the setting of back top is several；4 upper and lower of chair back cover board is symmetrically arranged several accessibke porosities 41, chair back cover board 4
Upper half-round slot 42 is inverted in the setting of rear portion two sides；Rotating shafts 5 are flat T-shaped, rear portion two sides setting shaft 51, the socket of bearing 52
In in shaft 51, inner via hole 53 is arranged in 5 front of Rotating shafts.
The Rotating shafts 5 pass through empty slot 311 and protrude outward, the left and right and upper outer edges and empty slot of Rotating shafts 5
311 outer edges are there are gap, and the bearing 52 is placed on lower half circular groove 312, and the chair back cover board 4 is covered on interconnecting piece 31
On, outer bolt 43 passes through accessibke porosity 41 and 313 screw-tightened of inner bolt hole, and upper half-round slot 42 is closed with 312 phase lid of lower half circular groove, several
6 both ends of spring are socketed with interior protruded stigma 11 and rear protruded stigma 314 respectively, upper bolt 13 be each passed through through-hole 12, inner via hole 53 and on
14 screw-tightened of screw hole.
Axle sleeve (531) are set in the inner via hole (53).
The utility model due to 5 front end of Rotating shafts pass through empty slot 311, and the left and right and top edge of Rotating shafts 5 with
The outer edge of empty slot 311 is there are gap, and to be each passed through through-hole 12, inner via hole 53 and 14 spiral of upper screw hole tight for upper bolt 13
Gu chair back frame 2 is with respect to the chair back so chair back frame 2 relatively can be turned left and right or be flipped up to respect to chair back connecting corner yard 1
The angle that connecting corner yard 1 turns left and right.Or the angle stirred upwards, the equal pore size phases with Rotating shafts 5 and empty slot 311
It closes, generally, the width in gap can be set, make to chair back frame 2 to turn left and right relative to chair back connecting corner yard 1 or to turning over
Dynamic angle is 15 degree most suitable, it is preferable that axle sleeve 531 is arranged in inner via hole 53 can reduce upper bolt 13 and inner via hole 53
Friction.It is mounted on seat when the utility model fit on bustle and net cloth holder, and the lower part of chair back connecting corner yard 1, just
Forming whole swivel chair makes the chair back at this point, human body is in chair back left-right rotation or human body reclining backward, the chair back can rotate simultaneously
It is close to Human Physiology curve all along without generating separation, human body back is made to feel comfortable, certainly, when the chair back is with respect to the chair back
When connecting corner yard 1 rotates, several springs 6 can generate torsional deformation, when human body back will be returned to initial state, the bullet of deformation
Spring 6 can help the chair back to return to state under return force function.
The above is only the preferred embodiments of the utility model, and therefore it does not limit the scope of the patent of the utility model, all
Using equivalent structure transformation made by the utility model patent specification and accompanying drawing content, it is applied directly or indirectly in other phases
The technical field of pass, is also included in the patent protection scope of the utility model.
Claims (2)
1. a kind of chair back rack, comprising: waist branch is arranged in chair back connecting corner yard (1), chair back frame (2), the chair back frame (2) middle and lower part
Bearing member (3), it is characterised in that: several interior protruded stigmas (11) are set in chair back connecting corner yard (1) upper end, upper through-hole (12) are arranged in top,
It is arranged below interior protruded stigma (11) upper screw hole (14)；The interconnecting piece (31) of setting indent, interconnecting piece (31) in the middle part of lumbar support (3)
Empty slot (311) are arranged in middle part, and lower half circular groove (312) are arranged in interconnecting piece (31) two sides, and interconnecting piece (31) upper and lower is respectively symmetrically set
It sets several inner bolt holes (313), protruded stigma (314) after the setting of back top is several；Chair back cover board (4) upper and lower is symmetrically arranged
Upper half-round slot (42) are inverted in several accessibke porosities (41), the setting of chair back cover board (4) rear portion two sides；
Rotating shafts (5) be it is flat T-shaped, shaft (51) are arranged in rear portion two sides, and bearing (52) is socketed on shaft (51), rotate
Inner via hole (53) are arranged in shaft member (5) front；The Rotating shafts (5) pass through empty slot (311) and protrude outward, Rotating shafts (5)
There are gap, the bearing (52) is placed on lower half circular groove (312) for left and right and upper outer edges and empty slot (311) outer edge,
The chair back cover board (4) is covered on interconnecting piece (31), and outer bolt (43) passes through accessibke porosity (41) and inner bolt hole (313) spiral is tight
Gu the upper half-round slot (42) mutually covers conjunction with lower half circular groove (312), several spring (6) both ends respectively with interior protruded stigma (11) and after
Protruded stigma (314) socket, upper bolt (13) are each passed through through-hole (12), inner via hole (53) and upper screw hole (14) screw-tightened.
2. a kind of chair back rack according to claim 1, it is characterised in that: axle sleeve (531) are arranged in the inner via hole (53).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820893778.3U CN208524256U (en) | 2018-06-11 | 2018-06-11 | A kind of chair back rack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820893778.3U CN208524256U (en) | 2018-06-11 | 2018-06-11 | A kind of chair back rack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208524256U true CN208524256U (en) | 2019-02-22 |
Family
ID=65382384
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820893778.3U Active CN208524256U (en) | 2018-06-11 | 2018-06-11 | A kind of chair back rack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208524256U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110897828A (en) * | 2019-12-27 | 2020-03-24 | 齐晓娟 | Massage chair |
-
2018
- 2018-06-11 CN CN201820893778.3U patent/CN208524256U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110897828A (en) * | 2019-12-27 | 2020-03-24 | 齐晓娟 | Massage chair |
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| GR01 | Patent grant |