CN208491372U - The chassis of office chair and office chair including the chassis - Google Patents
The chassis of office chair and office chair including the chassis Download PDFInfo
- Publication number
- CN208491372U CN208491372U CN201820483985.1U CN201820483985U CN208491372U CN 208491372 U CN208491372 U CN 208491372U CN 201820483985 U CN201820483985 U CN 201820483985U CN 208491372 U CN208491372 U CN 208491372U
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- CN
- China
- Prior art keywords
- chassis
- office chair
- back bracket
- pedestal
- seating pad
- 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.)
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Abstract
The utility model provides a kind of chassis of office chair and the office chair including the chassis, and office chair includes handrail, back bracket and chassis, and back bracket, which passes through, to be arranged in the first rotational pin of its side and be connected to handrail and be rotatable relative to handrail.Chassis includes: pedestal；Seating pad can be moved horizontally based on the rotation of back bracket relative to pedestal, and the end of the close back bracket in seating pad is formed with downward projection of protruding portion, and the guide hole extended along the vertical direction is formed in protruding portion；Elastic component, first end are connected to the lower surface of seating pad, and second end is connected to the upper surface of pedestal；Revolving member, across guide hole and its both ends is rotatably mounted to back bracket.When back bracket is rotated around the first rotational pin, since revolving member is vertically moving in guide hole, so that seating pad is relative to pedestal horizontal movement.The office chair can be realized backrest and cushion and synchronously link and can reduce manufacturing cost and installation difficulty.
Description
Technical field
The utility model relates to a kind of office chairs, and in particular, to a kind of chassis of office chair and doing including the chassis
Public chair.
Background technique
Recently, requirement of the people to the comfort level of office chair is higher and higher.For example, having had already appeared can meet on the market
The office chair (Chinese utility model patent for being CN104223821B referring to license notification number) that the people of different weight uses,
Bring discomfort is deviated to solve lumbar supporting position when office chair backrest is gently faced upward.But the shortcomings that this office chair, is
Backrest and cushion cannot be made synchronously to link, after people by when, backrest is taken advantage of a situation reclining, and cushion cannot be with Forward, therefore meeting
Generate discomfort.
In addition, the number of components needed for the chassis of office chair is relatively more according to prior art, structure is more complicated, dress
It is complex with relationship, lead to that manufacturing cost is larger and installation difficulty is higher, it is therefore desirable to which a kind of structure is relatively simple and energy
Enough reduce the office chair of manufacturing cost.
Utility model content
The one side of the utility model provides a kind of chassis of office chair and the office chair including the chassis, the office chair
Chassis can be such that cushion moves forward in the backrest reclining backward of office chair, to improve the comfort level of office chair, have simultaneously
Structure is relatively simple and the lower advantage of manufacturing cost.
According to the one side of the disclosure, a kind of chassis of office chair is provided, the office chair include handrail, back bracket and
Chassis, the back bracket are connected to the handrail and relative to the handrail by the way that the first rotational pin of its side is arranged in
It is rotatable, which is characterized in that the chassis includes: pedestal；Seating pad, the rotation based on the back bracket is relative to institute
To state pedestal can move horizontally, and be formed with close to the end of the back bracket in the seating pad downward projection of
Protruding portion is formed with the guide hole extended along the vertical direction in the protruding portion；Elastic component, the first end of the elastic component
It is connected to the lower surface of the seating pad, the second end of the elastic component is connected to the upper surface of the pedestal；Revolving member,
Revolving member passes through the guide hole and the both ends of the revolving member are rotatably mounted to the back bracket, wherein
When the back bracket around first rotational pin rotate when, due to the revolving member in the guide hole along vertical side
To movement, so that the seating pad is relative to the pedestal horizontal movement.
Preferably, the revolving member includes: shaft, and the both ends of the shaft, which have, opens up threaded groove；And the
Two rotational pins are screw-coupled in the groove of the shaft, while rotatably passing through the lower end that the back bracket is arranged in
In the hole in portion.
Preferably, the chassis further includes the track groove and sliding component to mate with each other, wherein the track groove setting
On the base, the sliding component is arranged on the seating pad or the track groove is arranged on the seating pad,
The sliding component setting is on the base.
Preferably, it is provided with the first block on the lower surface of the seating pad, is provided on the upper surface of the pedestal
Two blocks, the first end of the elastic component are installed to first block, and the second end of the elastic component is installed to described
Second block, wherein the front of second block is arranged in first block.
Preferably, the back bracket is 25 ° around the maximum angle of first rotational pin rotation.
Preferably, the maximum distance that the revolving member moves along vertical direction in the guide hole is 6.4mm.
Preferably, the sliding component is 75mm relative to the maximum distance that the track groove slides.
Preferably, first rotational pin and second rotational pin are half tooth bolt.
Preferably, the elastic component is spring or rubber strip.
According to the one side of the disclosure, providing a kind of office chair includes: handrail；Back bracket, by being arranged in its side
The first rotational pin be connected to the handrail and be rotatable relative to the handrail；The chassis of office chair as described above
In any one；Gas bar portion is installed to the lower section of the pedestal on the chassis, to adjust the height of the office chair；And
Castor portion, including multiple supporting legs and castor, upper end in each of the multiple supporting leg are connected to the gas bar portion and multiple
Lower end in each of supporting leg is provided with the castor, and the castor is for moving and supporting the office chair.
The chassis of office chair according to the present utility model can be realized the backrest of office chair and cushion synchronously links, can root
The angle between setting backrest and cushion is neatly adjusted according to sitting posture, and there is excellent catering to property, can be realized more humanized
Linkage.
The negligible amounts of component needed for the chassis of office chair according to the present utility model, structure is relatively simple, assembly relation
It is relatively simple, therefore can reduce manufacturing cost and can reduce installation difficulty.
Detailed description of the invention
Fig. 1 is to show the chassis of the office chair of embodiment according to the present utility model to be in the schematic diagram of original state.
Fig. 2 is to show the chassis of the office chair of embodiment according to the present utility model to be in the schematic diagram of intermediate state.
Fig. 3 is to show the chassis of the office chair of embodiment according to the present utility model to be in the schematic diagram of end-state.
Drawing reference numeral explanation:
1- seating pad；2- handrail；3- back bracket；The first rotational pin of 4-；5- guide hole；6- revolving member；7- elasticity structure
Part；8- pedestal；9- track groove；10- sliding component；The first block of 11-；The second block of 12-；13- gas bar portion；15- castor portion.
Specific embodiment
Now with reference to attached drawing a more complete description the embodiments of the present invention.
Referring to Fig.1, office chair according to the present utility model includes handrail 2, back bracket 3 and chassis, wherein back bracket
3 are pivotally connected to handrail 2 by the way that the first rotational pin 4 of its side is arranged in.In addition, office chair according to the present utility model
Further include: gas bar portion 13 is installed to the lower section of the pedestal 8 on chassis, to adjust the height of office chair；And castor portion 15, including it is more
A supporting leg and castor, upper end in each of multiple supporting legs are connected to the setting of lower end in each of gas bar portion and multiple supporting legs
There is castor, castor is for moving and supporting office chair.
Describe the chassis of office chair according to the present utility model in detail below with reference to Fig. 1 to Fig. 3.
The chassis of office chair according to the present utility model includes: pedestal 8；Seating pad 1, the rotation phase based on back bracket 3
Pedestal 8 can be moved horizontally, and the end of the close back bracket 3 in seating pad 1 is formed with downward projection of dash forward
Portion out is formed with the guide hole 5 extended along the vertical direction in protruding portion；The first end of elastic component 7, elastic component 7 is connected to
The lower surface of seating pad 1, the second end of elastic component 7 are connected to the upper surface of pedestal 8；Revolving member 6, revolving member 6 pass through
The both ends of guide hole 5 and revolving member 6 are rotatably mounted to back bracket 3.When back bracket 3 surrounds the first rotational pin 4
When rotation, revolving member 6 is vertically moving in guide hole 5, while seating pad 1 is relative to 8 horizontal movement of pedestal.
Here, revolving member 6 can include: shaft, shaft vertically moving and shaft both ends in guide hole 5
With opening up internal thread groove；And second rotational pin, it is screw-coupled in the groove of shaft, while rotatably passing through and setting
It sets in the hole of the lower end of back bracket 3.For example, the second rotational pin can be half tooth bolt, half tooth bolt is penetrated into from outside
In the hole of the lower end of back bracket 3, and in the groove engaged through the thread to shaft, so that back bracket 3 can surround
Revolving member 6 rotates.
The chassis of office chair according to the present utility model, which may also include, to mate with each other to guide seating pad 1 and 8 phase of pedestal
To the track groove 9 and sliding component 10 of movement, wherein track groove 9 may be provided on pedestal 8, and sliding component 10 may be provided at seat
On backing plate 1.Optionally, track groove 9 may be provided on seating pad 1, and sliding component 10 may be provided on pedestal 8.
Although the utility model discloses matched using track groove 9 and sliding component 10 so that seating pad 1 is the bottom of relative to
The example of 8 movement of seat, but the utility model is without being limited thereto.For example, also using track groove 9 and rolling member (for example, rolling
Pearl) construction that matches to be to allow seating pad 1 to move relative to pedestal 8.
It may be provided with the first block 11 on the lower surface of seating pad 1, may be provided with the second block on the upper surface of pedestal 8
12, and the first end of elastic component 7 is connected to the first block 11, and the second end of elastic component 7 is connected to the second block 12,
In, the front of the second block 12 is arranged in the first block 11.Here, " front ", which can be, refers to seating pad 1 relative to pedestal 8
The direction moved far from back bracket 3.In this way, making back bracket 3 surround the first rotational pin 4 backward when user is sitting on office chair
When rotation, the first end of elastic component 7 follows seating pad 1 to move forward in the horizontal direction, when user no longer applies back bracket 3
In stressed situation, seating pad 1 is set to return to initial position by the elastic-restoring force of elastic component 7.
The back bracket 3 of office chair can be rotated around the first rotational pin 4.As an example, back bracket 3 can be with predetermined value
(for example, 355mm) is that rotation diameter is rotated around the first rotational pin 4.In this case, back bracket 3 is around the first rotation
The maximum angle that pin 4 rotates can be 25 °, but not limited to this, for example, the maximum angle of the rotation of back bracket 3 can be 30 °
Or it is bigger.
Back bracket 3 around the first rotational pin 4 rotate 25 ° of maximum angle when, revolving member 6 in guide hole 5 along
The maximum distance of vertical direction movement can be 6.4mm.Sliding component 10 can be relative to the maximum distance that track groove 9 slides
75mm。
Back bracket 3, handrail 2, protruding portion, track groove 9 and the cunning of the office chair of embodiment according to the present utility model
The material of dynamic component 10 etc. can be plastics, but not limited to this, as long as can satisfy the manufacture and mounting process requirement of office chair
And intensity requirement.For example, the material of above-mentioned component can be metal.
As an example, identical as the second rotational pin, the first rotational pin 4 can also be half tooth bolt.
As an example, elastic component 7 can be spring or rubber strip.
The motion principle of the utility model is more fully described with reference to the accompanying drawing:
Referring to Fig.1, it when user is not sitting on office chair or user is sitting on office chair but without reclining backward, does
The back bracket 3 of public chair is not by the effect of external force, and therefore, the revolving member 6 being arranged in guide hole 5 is in initial bit
It sets, and the chassis of the office chair of embodiment according to the present utility model is in original state.
Referring to Fig. 2, when user is sitting on office chair and reclining (that is, applying thrust backward to back bracket 3) backward
When, effect of the back bracket 3 by thrust backward, back bracket 3 with the first rotational pin 4 be rotation axis rotated (for example,
25 ° of rotation), in this way, back bracket 3 to the revolving member 6 that is arranged in guide hole 5 applies active force so that it is from initial position
S1 starts to move downwardly to middle position S2 in guide hole 5, then thrust continue effect under, in guide hole 5 upwards
Move to final position S3.Distance of the revolving member 6 between the middle position S2 moved in guide hole 5 and final position S3 can
Think 6.4mm, but not limited to this, but can be changed according to the design specification of office chair, for example, middle position S2 and most final position
Setting the distance between S3 can be for 7mm or bigger.
Referring to Fig. 3, while revolving member 6 moves in guide hole 5, revolving member 6 applies forward to seating pad 1
Active force, therefore, seating pad 1 are travelled forward by sliding component 10 and track groove 9 engaged with one another relative to pedestal 8.
Seating pad 1 can be determined relative to the maximum distance that pedestal 8 moves according to the design specification of office chair.As an example, cushion
Plate 1 can be 75mm relative to the maximum distance that pedestal 8 moves, but not limited to this.At the same time, in seating pad 1 bottom of relative to
When seat 8 travels forward, elastic component 7 can be made to make stretching exercise.When sliding component 10 moves to the separate back bracket of track groove 9
When 3 end, at this point, seating pad 1 moves forward to maximum distance apart relative to pedestal 8.Due to the separate backrest branch of track groove 9
The barrier effect of the end of frame 3, back bracket 3 stop operating, and the stop motion in guide hole 5 of revolving member 6, elastic structure
Part 7 stops stretching exercise.
Fig. 1 is referred again to, when user leaves office chair or (does not retreat from reclining replying state backward to original state
Face upward) when, at this point, be no longer influenced by the effect of thrust backward in back bracket 3, therefore, in the elastic-restoring force of elastic component 7
Under effect so that seating pad 1 moves backward relative to pedestal 8, revolving member 6 in guide hole 5 with above-mentioned motion mode phase
Anti- mode moves, and make back bracket 3 with the first rotational pin 4 be rotation axis make return motion, and make office chair restore to
State as shown in Figure 1.
The chassis of the office chair of embodiment according to the present utility model, the backrest and cushion that can be realized office chair are synchronously
Linkage can neatly adjust the angle between setting backrest and cushion according to sitting posture, have excellent catering to property, can be realized more
Add the linkage of hommization.
The negligible amounts of component needed for the chassis of office chair according to the present utility model, structure is relatively simple, assembly relation
It is relatively simple, therefore can reduce manufacturing cost and can reduce installation difficulty.
Although specifically illustrating and describing the utility model referring to the exemplary embodiment of the utility model, this
Field those of ordinary skill is not it should be understood that the case where departing from the spirit and scope of the utility model being defined by the claims
Under, the various changes of form and details can be carried out to it.
Claims (10)
1. a kind of chassis of office chair, the office chair includes handrail (2), back bracket (3) and chassis, the back bracket
(3) handrail (2) are pivotally connected to by the way that the first rotational pin (4) of its side is arranged in, which is characterized in that the bottom
Disk includes:
Pedestal (8)；
Seating pad (1), the rotation based on the back bracket (3) can be moved horizontally relative to the pedestal (8), and in institute
The end close to the back bracket (3) for stating seating pad (1) is formed with downward projection of protruding portion, shape in the protruding portion
At there is the guide hole extended along the vertical direction (5)；
Elastic component (7), the first end of the elastic component (7) are connected to the lower surface of the seating pad (1), the elasticity structure
The second end of part (7) is connected to the upper surface of the pedestal (8)；
Revolving member (6), revolving member (6) pass through the both ends of the guide hole (5) and the revolving member (6) rotatably
The back bracket (3) are installed to,
Wherein, when the back bracket (3) are rotated around first rotational pin (4), the revolving member (6) is drawn described
It is vertically moving in guide hole (5), while the seating pad (1) is relative to the pedestal (8) horizontal movement.
2. chassis according to claim 1, which is characterized in that the revolving member (6) includes: shaft, and the shaft exists
The both ends of the vertically moving and described shaft, which have, in the guide hole (5) opens up internal thread groove；And second
Rotational pin is screw-coupled in the groove of the shaft, while rotatably passing through setting in the lower end of the back bracket (3)
In the hole in portion.
3. chassis according to claim 1, which is characterized in that the chassis further includes mating with each other to guide the seat
The track groove (9) and sliding component (10) of backing plate (1) and the pedestal (8) relative motion,
Wherein, the track groove (9) is arranged on the pedestal (8), and the sliding component (10) is arranged in the seating pad (1)
On, or
The track groove (9) is arranged on the seating pad (1), and the sliding component (10) is arranged on the pedestal (8).
4. chassis according to claim 1, which is characterized in that be provided with first gear on the lower surface of the seating pad (1)
Block (11) is provided with the second block (12) on the upper surface of the pedestal (8),
The first end of the elastic component (7) is connected to first block (11), the second end connection of the elastic component (7)
To second block (12),
Wherein, first block (11) is arranged in the front of second block (12).
5. chassis according to claim 1, which is characterized in that the back bracket (3) surrounds first rotational pin (4)
The maximum angle of rotation is 25 °.
6. chassis according to claim 1, which is characterized in that the revolving member (6) in the guide hole (5) along
The maximum distance of vertical direction movement is 6.4mm.
7. chassis according to claim 3, which is characterized in that the sliding component (10) is relative to the track groove (9)
The maximum distance of sliding is 75mm.
8. chassis according to any one of claim 1 to 7, which is characterized in that first rotational pin (4) and described
Two rotational pins are half tooth bolt.
9. chassis according to any one of claim 1 to 7, which is characterized in that the elastic component (7) is spring or rubber
Adhesive tape.
10. a kind of office chair, which is characterized in that the office chair includes:
Handrail (2)；
Back bracket (3), the first rotational pin (4) by the way that its side is arranged in are connected to the handrail (2) and relative to institutes
It is rotatable for stating handrail (2)；
The chassis of office chair as claimed in any one of claims 1-9 wherein；
Gas bar portion (13) is installed to the lower section of the pedestal (8) on the chassis, to adjust the height of the office chair；And
Castor portion (15), including multiple supporting legs and castor, upper end in each of the multiple supporting leg are connected to the gas bar portion
And lower end in each of multiple supporting legs is provided with the castor, and the castor is for moving and supporting the office chair.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820483985.1U CN208491372U (en) | 2018-04-04 | 2018-04-04 | The chassis of office chair and office chair including the chassis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820483985.1U CN208491372U (en) | 2018-04-04 | 2018-04-04 | The chassis of office chair and office chair including the chassis |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208491372U true CN208491372U (en) | 2019-02-15 |
Family
ID=65295694
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820483985.1U Expired - Fee Related CN208491372U (en) | 2018-04-04 | 2018-04-04 | The chassis of office chair and office chair including the chassis |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208491372U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114027655A (en) * | 2021-12-09 | 2022-02-11 | 安吉富和家具有限公司 | Back-leaning self-adaptive high-performance office chair |
-
2018
- 2018-04-04 CN CN201820483985.1U patent/CN208491372U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114027655A (en) * | 2021-12-09 | 2022-02-11 | 安吉富和家具有限公司 | Back-leaning self-adaptive high-performance office chair |
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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: 20190215 |