CN208524257U - Chair back - Google Patents
Chair back Download PDFInfo
- Publication number
- CN208524257U CN208524257U CN201721828361.0U CN201721828361U CN208524257U CN 208524257 U CN208524257 U CN 208524257U CN 201721828361 U CN201721828361 U CN 201721828361U CN 208524257 U CN208524257 U CN 208524257U
- Authority
- CN
- China
- Prior art keywords
- chair back
- telescoping mechanism
- drawstring
- support frame
- runner
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Abstract
The utility model relates to a kind of Chair backs, it includes supporting mechanism, the telescoping mechanism being installed on supporting mechanism, the backboard being installed on telescoping mechanism, supporting mechanism includes support frame, the adjusting rod being installed on support frame and runner, the spring for being installed on adjusting rod connection, the drawstring being around on runner, one end of drawstring is connect with spring, and the other end of drawstring is connect with telescoping mechanism.Runner includes main part and adjustment portion, and drawstring passes through main part and abuts with main part, adjustment portion.The comfort level of the Chair back is high, with shrinking elasticity, the automatic position for adapting to user, being hardly damaged, and can be adjusted according to service condition, be beneficial to that the health of seat work or learner is used for a long time.
Description
Technical field
The utility model relates to technical field of office furniture, more particularly to a kind of Chair back.
Background technique
With the development of economy, requirement of the people to office or living environment is higher and higher, office furniture and house man
Tool has more and more wide market in China, seat as one of main office furniture and residential cabinetry, comfort level with
And the beautiful important indicator become when people select use.Existing Chair back is mounted on the chair back generally by fastener
On bracket, the chair back be fixed it is rear stiff, people can only a kind of posture of fixation lean against on the chair back, greatly reduce seat
Comfort level.Elasticity is shunk in not having for common Chair back, can not be adapted to the position of user automatically, not had many times
The effect of support, it is firmly excessive using a period of time or the when of leaning on, it is easy to cause fastener to damage, Chair back damage is de-
It falls, chair is caused to scrap.
Utility model content
Based on this, it is necessary to Chair back there are aiming at the problem that, provide that a kind of comfort level is high, has and shrinks elasticity, no
Chair back easy to damage.
A kind of Chair back, comprising: supporting mechanism, the telescoping mechanism being installed on the supporting mechanism, be installed on it is described
Backboard on telescoping mechanism；The supporting mechanism includes support frame, the adjusting rod being installed on support frame as described above and runner, peace
The spring connected loaded on the adjusting rod, the drawstring being around on the runner, one end of the drawstring are connect with the spring,
The other end of the drawstring is connect with the telescoping mechanism；The runner includes main part and adjustment portion, and the drawstring passes through institute
Main part is stated to abut with the main part, adjustment portion.
Above-mentioned Chair back including supporting mechanism, the telescoping mechanism being installed on supporting mechanism, is installed on telescoping mechanism
Backboard, in use, being mounted on the corresponding site of chair by supporting mechanism.Adjusting rod, runner, the spring of supporting mechanism
And drawstring forms the relative constant power output system of a support force size, the beginning state of backboard is to stretch out.Work as use
When person is sitting on chair by being pressed against backboard, telescoping mechanism can be compressed on supporting mechanism with horizontal direction until user feels to relax
Stop in due course, when not in use, telescoping mechanism can reset to beginning state under the action of power output system.Due to the tune of runner
The torque arm length of section portion and drawstring can form relative constant support force with the tensile elongation adaptive change of spring,
User is relative constant in different location acquisition support force size, and comfort level is high.The comfort level of the Chair back is high, has and shrinks
Elasticity is hardly damaged, and is beneficial to the health for a long time with seat work or learner.
In one of the embodiments, further include an atmospheric pressure pole, the atmospheric pressure pole be installed in the supporting mechanism and
It is connect with the telescoping mechanism.
In one of the embodiments, further include locking card hand, the locking card hand be installed on the telescoping mechanism and
It is oppositely arranged with support frame as described above.
The locking card hand is equipped with several latches in one of the embodiments,.
Support frame as described above is equipped with several positioning tooth sockets, the positioning tooth socket and the card in one of the embodiments,
Tooth adaptation.
The telescoping mechanism includes the flexible block set being installed on support frame as described above, installation in one of the embodiments,
Force block on the flexible hub interior wall, the force block are connect with the drawstring.
There are two pin joint seats, the pin joint seat to stretch with described for installation on the backboard in one of the embodiments,
Block set pivot joint.
Support frame as described above includes mounting base, first be installed in the mounting base support in one of the embodiments,
Arm and two the second support arms, second support arm are connect with first support arm, second support arm with described turn
Wheel connection.
The adjusting rod is threaded rod in one of the embodiments, and the mounting base is equipped with threaded hole, the adjusting
Bar is mounted in the mounting base by the threaded hole.
The adjustment portion is arranged in vortex shape in one of the embodiments,.
Detailed description of the invention
Fig. 1 is the schematic diagram of the Chair back of one preferred embodiment of the utility model；
Fig. 2 is the schematic cross-sectional view of Chair back shown in Fig. 1；
Fig. 3 is the schematic diagram of another embodiment Chair back of the utility model；
Fig. 4 is the schematic diagram of another embodiment of the utility model Chair back；
Fig. 5 is the schematic cross-sectional view of Chair back shown in Fig. 4；
Fig. 6 is the schematic diagram of support frame in Chair back shown in Fig. 1；
Fig. 7 is the schematic diagram of support frame in Chair back shown in Fig. 4；
Fig. 8 is the enlarged diagram in Chair back shown in Fig. 5 at circle A；
Fig. 9 is the schematic diagram of runner in Chair back shown in Fig. 5；
Figure 10 is the utility model stress analysis schematic diagram；
Figure 11 is another stress analysis schematic diagram of the utility model；
Attached drawing mark explanation:
100- Chair back, 20- supporting mechanism, 21- support frame, 22- adjusting rod, 23- runner, 24- spring, 25- drawstring,
211- mounting base, the first support arm of 212-, the second support arm of 213-, 214- stroke opening, 215- position tooth socket, 231- main body
Portion, 232- adjustment portion, 233- threading hole, 234- support shaft, 30- telescoping mechanism, 31- stretch block set, 32- force block, 40- backrest
Plate, 41- pin joint seat, 42- support concave surface, 50- atmospheric pressure pole, and 60- locks card hand, 61- latch, 200- Chair back, 300- seat
The chair back.
Specific embodiment
The utility model is more fully retouched below with reference to relevant drawings for the ease of understanding the utility model,
It states.The preferred embodiment of the utility model is given in attached drawing.But the utility model can come in many different forms in fact
It is existing, however it is not limited to embodiment described herein.On the contrary, purpose of providing these embodiments is makes public affairs to the utility model
The understanding for opening content is more thorough and comprehensive.
It should be noted that it can directly on the other element when element is referred to as " being fixed on " another element
Or there may also be elements placed in the middle.When an element is considered as " connection " another element, it, which can be, is directly connected to
To another element or it may be simultaneously present centering elements.
Unless otherwise defined, all technical and scientific terms used herein are led with the technology for belonging to the utility model
The normally understood meaning of the technical staff in domain is identical.Terminology used in the description of the utility model herein only be
The purpose of description specific embodiment, it is not intended that in limitation the utility model.
Referring to Fig.1 and 2, being the Chair back 100 of an embodiment of the present invention, which includes branch
Support mechanism 20, the telescoping mechanism 30 being installed on supporting mechanism 20, the backboard 40 being installed on telescoping mechanism 30, telescoping mechanism
30 can do stretching motion on supporting mechanism 20, and backboard 40 can rotate on telescoping mechanism 30 adjusts angle.
Fig. 6 is referred again to, the supporting mechanism 20 includes support frame 21, the adjusting rod 22 and runner being installed on support frame 21
23, the spring 24 for being installed on the connection of adjusting rod 22, the drawstring 25 being around on runner 23, one end of drawstring 25 and spring 24 connect
It connects, the other end of drawstring 25 is connect with telescoping mechanism 30.Further, support frame 21 includes mounting base 211, is installed on mounting base
The first support arm 212 and two the second support arms 213, the second support arm 213 on 211 are connect with the first support arm 212, and second
Support arm 213 is connect with runner 23.Adjusting rod 22 is threaded rod, and mounting base 211 is equipped with threaded hole, and adjusting rod 22 passes through screw thread
Hole is mounted in mounting base 211, can pass through the initial strength that rotation adjusting rod 22 adjusts spring 24 when use.In other implementations
In example, adjusting rod 22 can be provided at an outer portion with multiple card slots, and it is fixed to complete clamping in conjunction with the movable block tongue for being mounted on mounting base 211
Position, to realize the initial strength of adjustment spring.A stroke opening 214, row are formed between the second support arm of two of them 213
Journey opening 214 stress and will not be blocked when stretching convenient for telescoping mechanism 30.
Fig. 9 is referred again to, the runner 23 includes main part 231 and adjustment portion 232, and drawstring 25 passes through main part 231 and master
Body portion 231, adjustment portion 232 abut.Wherein main part 231 is equipped with a threading hole 233 and two support shafts 234, threading hole
233 pass through for drawstring 25, and support shaft 234 is undertaken on the second support arm 213, and adjustment portion 232 is arranged in vortex shape, vortex shape
The distance edge at the outer rim of adjustment portion 232 to 234 center of support shaft is gradually increased counterclockwise, the drawstring 25 abutted with adjustment portion 232
As the torque arm length that the rotation of runner 23 is formed can also change.
The telescoping mechanism 30 includes the flexible block set 31 being installed on support frame 21, is installed on flexible 31 inner wall of block set
Force block 32, force block 32 connect with drawstring 25, and drawstring 25 can be by force block 32 to flexible under the action of spring 24
Block set 31 provides power.There are two pin joint seat 41, pin joint seat 41 and flexible block sets 31 to be pivotally connected for installation on the backboard 40, user
The angle that backboard 40 can be adjusted by pin joint seat 41, improves comfort level.Backboard 40 is equipped with a support concave surface 42, branch
Support concave surface 42 is located at backboard 40 backwards to the side of flexible block set 31, and support concave surface 42 can be such that user is not easy by unlucky to two
Sideslip falls.
Above-mentioned Chair back 100 including supporting mechanism 20, the telescoping mechanism being installed on supporting mechanism 20 30, is installed on
Backboard 40 on telescoping mechanism 30, in use, being mounted on the corresponding site of chair by supporting mechanism 20.Supporting mechanism 20
Adjusting rod 22, runner 23, spring 24 and drawstring shape 25 at the relative constant power output system of a support force size, backboard
40 beginning state is to stretch out.When user is sitting on chair by being pressed against backboard 40, telescoping mechanism 30 is in supporting mechanism 20
On can with horizontal direction compress stopping when user is comfortable on, when not in use, telescoping mechanism 30 is in power output system
Beginning state can be reset under effect.The torque arm length of adjustment portion 232 and drawstring 25 due to runner 23 can be with spring 24
Tensile elongation adaptive change, relative constant support force can be formed, user obtains support force size in different location
Relative constant, comfort level is high.The comfort level of the Chair back 100 is high, has and shrinks elasticity, is hardly damaged, and is beneficial to use for a long time
The health of seat work or learner.
It referring to figure 3., is the Chair back 200 of another embodiment of the utility model, relative to above-mentioned Chair back 100
Difference is to be also provided with an atmospheric pressure pole 50.The Chair back 200 includes supporting mechanism 20, is installed on supporting mechanism 20
Telescoping mechanism 30, the backboard 40 being installed on telescoping mechanism 30 and atmospheric pressure pole 50, telescoping mechanism 30 can be in supporting mechanisms
Stretching motion is done on 20, backboard 40 can rotate on telescoping mechanism 30 adjusts angle.Since atmospheric pressure pole 50 is installed on support
Connect in mechanism 20 and with telescoping mechanism 30, in use, when 40 forced compression of telescoping mechanism 30 and backboard, atmospheric pressure pole 50 by
Contracting is forced, 24 stress of spring stretches, and the two combination can provide biggish support force, is suitble to the biggish crowd of weight to use, branch
It is big to support intensity.When not in use, telescoping mechanism 30 and backboard 40 can be reset to open under the action of spring 24 and atmospheric pressure pole 50
Beginning state.
Referring to figure 4., Fig. 5, Fig. 7 and Fig. 8 are the Chair back 300 of another embodiment of the utility model, the Chair back
300 are to be additionally provided with locking card hand 60 relative to the difference of above-mentioned Chair back 100.The Chair back 300 includes support machine
Structure 20, the telescoping mechanism 30 being installed on supporting mechanism 20, the backboard 40 being installed on telescoping mechanism 30 and locking card hand
60, telescoping mechanism 30 can do stretching motion on supporting mechanism 20, and backboard 40 can rotate adjusting on telescoping mechanism 30
Angle.It is envisaged that atmospheric pressure pole 50 can also be installed inside supporting mechanism 20 in this embodiment forms new scheme to mention
High support strength.Further, the locking card hand 60 is installed on the flexible block set 31 of telescoping mechanism 30 up and and support frame
21 are oppositely arranged, and locking card hand 60 is equipped with several latches 61, and support frame 21 is equipped with several positioning tooth sockets 215, position tooth socket
215 latches 61 adaptation.When moving locking card hand 60 makes latch 61 leave positioning tooth socket 215, telescoping mechanism 30 and backboard 40
Can stretch, when move locking card hand 60 make latch 61 be caught in positioning tooth socket 215 when, telescoping mechanism 30 be fixed extremely, by
It will not be moved under power.
Figure 10 and Figure 11 are please referred to, the support force to provide in 20 inside power output system of the utility model supporting mechanism produces
Raw schematic diagram.As shown in Figure 10, shorter in spring 24, when the chair back horizontal longest, the torque M1=L1*F1 of spring terminal,
Wherein F1=K*X1, then (wherein K is fixed coefficient of elasticity to M1=L1*F1*X1, and L1 is the torque arm length of current location, and M1 is
The torque of current location, X1 are current location spring elongation).As shown in figure 11, longer in spring 24, chair back level is shortest
When, the torque M2=L2*F2 of spring terminal, wherein F2=K*X2, then M2=L2*F2*X2 (wherein K is fixed coefficient of elasticity,
L2 is the torque arm length of current location, and M2 is the torque of current location, and X2 is current location spring elongation).
Since the coefficient of elasticity K of same root spring in both the above different conditions is constant, if L1*X1=L2*X2,
M1=M2, if our elongation state Xns different in spring, the adjustment portion 232 that runner 23 is arranged in we provides the corresponding arm of force
Length Ln, it is ensured that Ln*Xn=L1*X1=L2*X2, then Mn=M1=M2.By above-mentioned principle, we can make spring in office
Torque can be kept substantially constant (relative constant, also to be influenced by factors such as frictional force) when one length, while output end
Support force is relative constant, improves comfort level.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
Above-described embodiments merely represent several embodiments of the utility model, the description thereof is more specific and detailed,
But it cannot be understood as the limitations to utility model patent range.It should be pointed out that for the common skill of this field
For art personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these are belonged to
The protection scope of the utility model.Therefore, the scope of protection shall be subject to the appended claims for the utility model patent.
Claims (10)
1. a kind of Chair back characterized by comprising supporting mechanism, the telescoping mechanism being installed on the supporting mechanism, peace
Loaded on the backboard on the telescoping mechanism；The adjusting rod that the supporting mechanism includes support frame, is installed on support frame as described above
And runner, the spring for being installed on adjusting rod connection, the drawstring being around on the runner, one end of the drawstring with it is described
Spring connection, the other end of the drawstring are connect with the telescoping mechanism；The runner includes main part and adjustment portion, the drawing
Rope is abutted across the main part with the main part, adjustment portion.
2. Chair back according to claim 1, which is characterized in that it further include an atmospheric pressure pole, the atmospheric pressure pole installation
It is connect in the supporting mechanism and with the telescoping mechanism.
3. Chair back according to claim 1 or 2, which is characterized in that it further include locking card hand, the locking card hand peace
Loaded on being oppositely arranged on the telescoping mechanism and with support frame as described above.
4. Chair back according to claim 3, which is characterized in that the locking card hand is equipped with several latches.
5. Chair back according to claim 4, which is characterized in that support frame as described above is equipped with several positioning tooth sockets, institute
Positioning tooth socket is stated to be adapted to the latch.
6. Chair back according to claim 3, which is characterized in that the telescoping mechanism includes being installed on support frame as described above
On flexible block set, the force block that is installed on the flexible hub interior wall, the force block connect with the drawstring.
7. Chair back according to claim 6, which is characterized in that there are two pin joint seat, institutes for installation on the backboard
It states pin joint seat and the flexible block set is pivotally connected.
8. Chair back according to claim 1, which is characterized in that support frame as described above include mounting base, be installed on it is described
The first support arm and two the second support arms in mounting base, second support arm is connect with first support arm, described
Second support arm is connect with the runner.
9. Chair back according to claim 8, which is characterized in that the adjusting rod is threaded rod, in the mounting base
Equipped with threaded hole, the adjusting rod is mounted in the mounting base by the threaded hole.
10. Chair back according to claim 1, which is characterized in that the adjustment portion is arranged in vortex shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721828361.0U CN208524257U (en) | 2017-12-22 | 2017-12-22 | Chair back |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721828361.0U CN208524257U (en) | 2017-12-22 | 2017-12-22 | Chair back |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208524257U true CN208524257U (en) | 2019-02-22 |
Family
ID=65399527
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721828361.0U Expired - Fee Related CN208524257U (en) | 2017-12-22 | 2017-12-22 | Chair back |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208524257U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107898200A (en) * | 2017-12-22 | 2018-04-13 | 邓建波 | Chair back |
-
2017
- 2017-12-22 CN CN201721828361.0U patent/CN208524257U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107898200A (en) * | 2017-12-22 | 2018-04-13 | 邓建波 | Chair back |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20190222 Termination date: 20211222 |