CN206603492U - Chair underframe - Google Patents
Chair underframe Download PDFInfo
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- CN206603492U CN206603492U CN201621368952.XU CN201621368952U CN206603492U CN 206603492 U CN206603492 U CN 206603492U CN 201621368952 U CN201621368952 U CN 201621368952U CN 206603492 U CN206603492 U CN 206603492U
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- seesaw
- base
- chair
- chair underframe
- resetting means
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Abstract
The utility model is related to a kind of Chair underframe, including：Base, is configured for connection to chair base component；Seesaw, for connecting chairback brace, described seesaw is connected with base rear portion by pivoting；Resetting means, is connected between base and seesaw, when seesaw is pivoted, and resetting means deformation is produced reseting elasticity.The Chair underframe, is that resetting means is directly set between base and seesaw, when seesaw is rotated, directly promotes resetting means to deform, produce reseting elasticity；Chair underframe of the present utility model is that resetting means is directly set between base and seesaw, and seesaw connects the support of the chair back, when seesaw is rotated under chairback brace effect, directly promotes resetting means to deform, produces reseting elasticity；Resetting means is arranged on base, in the space that seesaw is enclosed, and not extra space-consuming makes seat monnolithic case more attractive in appearance.
Description
Technical field
The utility model is related to the technical fields such as seat, swivel chair, office chair, more particularly to a kind of Chair underframe.
Background technology
Revolving chair chassis, also referred to as Revolving chair tray, are installed in an important component below swivel chair seat cushion, and the lifting of seat cushion is leaned on
The elevation angle regulation of the back of the body is all completed by chassis.
Chinese patent literature (the day for announcing：On December 24th, 2014, notification number：CN104223821A a kind of swivel chair) is disclosed
Chassis, including base, bracket and seesaw, bracket are arranged in base, and seesaw is arranged in bracket, seesaw using the first bearing pin as turn
Activity supporting point, the first bearing pin is connected through bracket and with base, and seesaw front portion prizes bracket by first connecting rod, second connecting rod, the
One connecting rod is connected with second connecting rod by the 3rd hinge and the 3rd bearing pin with bracket, and second connecting rod is installed with the second bearing pin and
Two bearing pins pass through or avoided after bracket to be connected with base, rail groove are symmetrically offered in the both sides of bracket, the first bearing pin is located in
In rail groove, the chassis also includes enabling the elasticity reset device that bracket sets back after seesaw prizes movement of bracket.Dress
The swivel chair or seat on this standby chassis, according to human body weight, backrest reclining restoring force has corresponding matching so that no matter body weight it is light or
The people of weight easily can stand up in reclining reply.
Specifically, the first bearing pin of the patent, the second bearing pin, the 3rd bearing pin, the 4th bearing pin, seesaw, first connecting rod,
Two connecting rods formation four-point linkage mechanism, forms the conduction of power, the chair back is connected and fixed on seesaw as the driving of four-point linkage mechanism
Power, human body puts on the reply that threeth bearing pin formation of the gravity of seat support by being articulated with bracket is applied to four-point linkage mechanism
Power, driving force and restoring force the formation Antagonistic Relationship of four-point linkage mechanism.
During human body backward reclining, the second connecting rod of four-point linkage mechanism progressively subtracts with horizontal acute angle
Small, then bracket puts on the revolving force component increase of second connecting rod, so as to realize reply of the gravitational load for quadric chain
Force square is incrementally increased, and is resisted with the driving force formation that incrementally increases, restoring force to the elastic-restoring force of elasticity reset device according to
Bad smaller, applicable crowd's scope is wider, and the lighter or heavier people of body weight easily can stand up in reclining and reply, therefore for every
The people of individual different weight can reach most Proper Match restoring force.
Above-mentioned chassis structure is relative complex, and elasticity reset device is not easy to install, and interference is easily produced between linkage component.
Utility model content
The purpose of this utility model is in order in the presence of overcoming the shortcomings of above-mentioned prior art, and to provide and a kind of install letter
Single, cost is low, good appearance, and seesaw and chair back component is integrally easy to the Chair underframe resetted.
The utility model realizes that the technical scheme that its utility model purpose is used is：
A kind of Chair underframe, including：
Base, is configured for connection to chair base component；
Seesaw, for connecting chairback brace, described seesaw is connected with base rear portion by pivoting；
Resetting means, is connected between base and seesaw, when seesaw is pivoted, and resetting means deformation is produced reset
Elastic force.
The Chair underframe, is that resetting means is directly set between base and seesaw, when seesaw is rotated, directly promotes to reset
Device is deformed, and produces reseting elasticity.
Preferably, described base includes a bottom plate and biside plate.
Coordinate for convenience with seesaw, and facilitate resetting means to install, preferably, described bottom plate is in anterior-posterior length
Curved structure setting on direction.
Preferably, described seesaw has two arms being oppositely arranged of interval, two arms respectively with base two
Side plate is affixed and rotates connection.Described seesaw takes the shape of the letter U structure setting, can save space, and do not influence to match somebody with somebody with base rotation
Close.
Preferably, described base or seesaw set limited location elongated hole, another corresponding upper setting on one of them
Limited location axle, described seesaw realizes that the guiding rotated is spacing by limit shaft；Rotate seesaw and be maintained at suitable angle.
Preferably, described spacing elongated hole is arranged in front of pivot.Seesaw front center is with base by pivoting
Connection, spacing elongated hole is arranged in front of pivot so that seesaw front portion is inserted in base, is intersected with base, is not taken additionally empty
Between.
Preferably, reseting pressuring spring is arranged on base, in the space that seesaw is enclosed, the two ends difference of described reseting pressuring spring
It is connected with base and seesaw.Reseting pressuring spring is arranged on base, in the space that seesaw is enclosed, and not extra space-consuming makes seat
Monnolithic case is more attractive in appearance；Reseting pressuring spring can be provided with varying number according to the selection of the size of reset force, but no matter quantity is more
It is few, all it is hidden in base, makes whole seat shape attractive in appearance, it is convenient to reset.
Preferably, a bearing pin has respectively been horizontally set with base and seesaw, the two ends difference connect base of reseting pressuring spring, seesaw
On bearing pin.Two bearing pins are located in base, on seesaw respectively, and when seesaw is rotated, the bearing pin on seesaw is pivoted, and
Bearing pin on base, and reseting pressuring spring is connected between two bearing pins, by compression, produces reseting elasticity.
Reseting pressuring spring is connected with bearing pin for convenience, preferably, described reseting pressuring spring includes a stage clip body and set
The connecting seat at stage clip body two ends is put, connecting seat is provided with axis hole, and described bearing pin is located in the axis hole of connecting seat.
Employing the beneficial effects of the utility model of above-mentioned technical proposal is：
Chair underframe of the present utility model is that resetting means is directly set between base and seesaw, the seesaw connection chair back
Support, when seesaw is rotated under chairback brace effect, directly promotes resetting means to deform, produces reseting elasticity；Resetting means
For at least one reseting pressuring spring, the quantity of reseting pressuring spring can be configured according to indexs such as the body weight of human body, but due to
The presence of base, no matter reseting pressuring spring quantity is several, and resetting means is arranged on base, in the space that seesaw is enclosed, not additionally
Space-consuming, makes seat monnolithic case more attractive in appearance；Apply the armchair structure on this chassis so that the armchair structure can be according to not
The size of the power applied with human body realizes different degrees of hypsokinesis, the need for adapting to different users.
Brief description of the drawings
Fig. 1 is a kind of structural representation of the utility model armchair structure in embodiment；
Fig. 2 is the structural representation of another angle of the utility model armchair structure in embodiment；
Fig. 3 is the utility model armchair structure one-sided configuration reset condition figure in embodiment；
Fig. 4 is the utility model armchair structure one-sided configuration layback state diagram in embodiment；
Fig. 5 is the utility model armchair structure one-sided configuration layback state sectional view in embodiment；
Fig. 6 is the utility model armchair structure retroverted state structural representation in embodiment；
Fig. 7 is a kind of structural representation of stage clip in the utility model in embodiment；
Fig. 8 is a kind of explosive view of stage clip in the utility model in embodiment.
Embodiment
The technical solution of the utility model is described in further detail below by specific embodiment and with reference to accompanying drawing.
Define the reference azimuth of each part of the utility model first, the utility model using seat normal operating condition as
With reference to the front of seat is front, and the position where the rear of seat includes chair back component is rear.
Embodiment：
Chassis of the present utility model is the important component of armchair structure, in the embodiment shown in Fig. 1, Fig. 2, this reality
A kind of armchair structure of example is applied, including：
Base 1, is configured for connection to chair base component；Base 1 is preferably metab；Chair base component (is not schemed
Show) include the castor of support column, the multiple supporting legs radially extended from support column lower end and supporting leg end, described support column
It can be gas bar.
Support member 2, support member 2 is arranged at the top of base 1, and each one of support member 2 or so, and two support members 2 are anterior even
It is integrated and is connected with anterior rotate of base 1；The front end of support member 2 bends to be extended rearward and tied for human body sitting posture position
Structure, and support member 2 is in that frame structure rotation is connected with base 1；Human body sitting posture bit architecture meets prosthesis, human body is sat sense
More comfortable, leg is felt good；
Support member 2 is rotated by a transition connecting rod 8 with the front end of base 1 and is connected.The two ends of transition connecting rod 8, which are respectively arranged with, is in
The connecting rod position limiting structure 25 of arc；One end that support member 2 is connected with transition connecting rod 8 is provided with first corresponding to connecting rod position limiting structure
Position limiting structure 9, base 1 rotates junction with transition connecting rod 8 and is provided with the second position limiting structure 21.First position limiting structure 9 is arc
Spacing preiection, the second position limiting structure 21 is that arc-shaped limit is raised or be spacer pin or be limiting tooth.Second is spacing in the present embodiment
Structure 21 is spacer pin (see Fig. 3).
Chair back component 3, including seesaw 4 and support 5, seesaw 4 are rotated by pivot 6 with the rear portion of base 1 and are connected, 5 turns of support
Seesaw 4 is driven to be rotated around the pivot 6 when dynamic；Seesaw 4 is equivalent to chair back component 3 and the connection tie of base 1.
Actuator 7, it is connected between the support 5 and support member 2, and the correspondence support member 2 of actuator 7, is also left and right two
Each one of side；Actuator 7 and it is non-self have a driving force, but rely on chair back component 3 to rotate transmission power；When support 5 is from initial
When position rotates backward, support member 2 is lifted by actuator 7；When support 5 resets, further through actuator 7 by support member 2
It is reset to initial position.Support 5 is the one-piece member for coordinating human body back structure setting；Support 5 includes a back frame upper bracket
51st, a back frame lower carriage 52 and two side handrails 53, middle part and the seesaw 4 of back frame lower carriage 52 are connected.
Base 1 includes a bottom plate 26 and biside plate 27 (see Fig. 5), and the curved structure on anterior-posterior length direction of bottom plate 26 is set
Put.Seesaw 4 takes the shape of the letter U structure setting, specifically, and seesaw 4 has two arms 41 that interval is oppositely arranged, the front end of seesaw 4
That is, arm 41 and fit in the rear end of base 1 and can relatively rotating is connected.
Two arms 41 of seesaw 4 and the biside plate 27 of base 1 rotate at cooperation and are respectively arranged with pivoted hole 12, seesaw
4 are connected with base 1 by being arranged on the rotation of pivot 6 inside pivoted hole 12.
Base 1 or seesaw 4 set limited location elongated hole 15 on one of them, corresponding to be provided with limit shaft 14 on another
(see Fig. 3, Fig. 5), spacing elongated hole 15 is arranged on the front of pivoted hole 12, and seesaw 4 realizes the guiding of front and rear tilting by limit shaft 14
It is spacing.The rear end both sides of seesaw 4 coordinate support 5 to be provided with fixed interface arrangment 13.
As shown in Fig. 2,3,5,7,8, resetting means 16 is provided between base 1 and seesaw 4；Specifically, resetting means
16 be 2~5 reseting pressuring springs being arranged side by side；The two ends of reseting pressuring spring are connected with base 1 and seesaw 4 respectively；Specifically,
A bearing pin 10 respectively it has been horizontally set with base 1 and seesaw 4, the bearing pin 10 in the two ends difference connect base 1 of reseting pressuring spring, seesaw 4.
Reseting pressuring spring includes a stage clip body 18 and is arranged on the connecting seat 17 at stage clip body two ends, and connecting seat 17 is provided with axis hole 42,
Described bearing pin 10 is located in the axis hole 42 of connecting seat 17.
Actuator 7 is wholely set with support 5；Again or actuator 7 sets and is fixedly connected with the split of support 5.This implementation
Actuator 7 is wholely set with support 5 in example.
Actuator 7 is rotated by one group of connecting rod 20 with support member 2 and is connected.Connecting rod 20 includes first connecting rod 19 and second connecting rod
29, first connecting rod 19 is fixedly linked with support member 2 by three screws, and second connecting rod 29 is solid by three screws with actuator 7
Fixed to be connected, first connecting rod 19 and second connecting rod 29 are rotated by rotating shaft 30 and connected.First connecting rod 19 and second connecting rod 29 are wherein appointed
Spacing hole 31 is provided with meaning one, and corresponding to be provided with spacing bearing pin 32 on another, spacing bearing pin 32 is inserted in spacing hole 31
It is interior.
The armchair structure, by setting support member, a chair back component and the actuator being connected with seat front rotation,
Form a lever connecting rod arm configuration (see Fig. 3, Fig. 4).In use, the power that human body is acted on chair back component, is turning
Mutually transmitted between the actuator and chair back component and support member of dynamic connection, so as to drive above and below support member realizes on base
Lift, and then realize front and rear reclining (see Fig. 5, Fig. 6).
A kind of seat, including：
Above-mentioned armchair structure；
Chair base component；Chair base component it is (not shown) including support column, from support column lower end radially extend it is many
The castor of individual supporting leg and supporting leg end, support column connect base, described support column can be gas bar.
One is arranged on the seat cushion on armchair structure.
The armchair structure and its seat, may adapt to any material making, are readily applicable to anyone, resetting means
It can be needed be configured according to appearance design, body weight etc., to meet making for different use requirement and different crowd
With, and disclosure satisfy that the requirement of human body sitting posture comfort level.
Claims (10)
1. a kind of Chair underframe, it is characterized in that including：
Base, is configured for connection to chair base component；
Seesaw, for connecting chairback brace, described seesaw is connected with base rear portion by pivoting；
Resetting means, is connected between base and seesaw, when seesaw is pivoted, and produces resetting means deformation and resets bullet
Power.
2. Chair underframe according to claim 1, it is characterised in that：Described base includes a bottom plate and biside plate.
3. Chair underframe according to claim 2, it is characterised in that：Described bottom plate is curved on anterior-posterior length direction
Structure setting.
4. Chair underframe according to claim 2, it is characterised in that：Described seesaw has two that interval is oppositely arranged
Arm, two arms, which are affixed and rotated with the biside plate of base respectively, to be connected.
5. Chair underframe according to claim 1, it is characterised in that：Described base or seesaw are provided with one of them
Spacing elongated hole, corresponding that limit shaft is provided with another, described seesaw realizes that the guiding rotated is spacing by limit shaft.
6. Chair underframe according to claim 5, it is characterised in that：Described spacing elongated hole is arranged in front of pivot.
7. Chair underframe according to claim 1, it is characterised in that：Described resetting means is at least one reset pressure
Spring.
8. Chair underframe according to claim 7, it is characterised in that：The sky that reseting pressuring spring is arranged on base, seesaw is enclosed
In, the two ends of described reseting pressuring spring are connected with base and seesaw respectively.
9. Chair underframe according to claim 8, it is characterised in that：A bearing pin has respectively been horizontally set with base and seesaw, it is multiple
The two ends difference connect base of position stage clip, the bearing pin on seesaw.
10. Chair underframe according to claim 9, it is characterised in that：Described reseting pressuring spring include a stage clip body and
The connecting seat at stage clip body two ends is arranged on, connecting seat is provided with axis hole, and described bearing pin is located in the axis hole of connecting seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621368952.XU CN206603492U (en) | 2016-12-05 | 2016-12-05 | Chair underframe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621368952.XU CN206603492U (en) | 2016-12-05 | 2016-12-05 | Chair underframe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206603492U true CN206603492U (en) | 2017-11-03 |
Family
ID=60171007
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621368952.XU Active CN206603492U (en) | 2016-12-05 | 2016-12-05 | Chair underframe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206603492U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018041256A1 (en) * | 2016-09-01 | 2018-03-08 | 永艺家具股份有限公司 | Chair structure and chair |
-
2016
- 2016-12-05 CN CN201621368952.XU patent/CN206603492U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018041256A1 (en) * | 2016-09-01 | 2018-03-08 | 永艺家具股份有限公司 | Chair structure and chair |
| US10595636B2 (en) | 2016-09-01 | 2020-03-24 | Ue Furniture Co., Ltd | Seat structure and chair |
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