CN203555410U - Chair back warped plate locking mechanism - Google Patents
Chair back warped plate locking mechanism Download PDFInfo
- Publication number
- CN203555410U CN203555410U CN201320590650.7U CN201320590650U CN203555410U CN 203555410 U CN203555410 U CN 203555410U CN 201320590650 U CN201320590650 U CN 201320590650U CN 203555410 U CN203555410 U CN 203555410U
- Authority
- CN
- China
- Prior art keywords
- fixture block
- base
- chair back
- locking mechanism
- positioning seat
- 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.)
- Withdrawn - After Issue
Links
Images
Landscapes
- Chairs For Special Purposes, Such As Reclining Chairs (AREA)
Abstract
The utility model discloses a chair back warped plate locking mechanism. The chair back warped plate locking mechanism comprises a row of lock holes, two torsional springs, two bolts and two bolt bases, wherein the row of lock holes are symmetrically formed in the two sides of the warped plate; the two torsional springs are symmetrically arranged on the two sides in a base; the bolt bases are fixedly arranged on the base; the bolts are inserted into the bolt bases in a sliding manner and matched with the lock holes; a first spring arm of each torsional spring is connected with each bolt; a second spring arm of each torsional spring is connected to a drive device for driving the torsional springs to rotate back and forth. A row of lock holes are symmetrically formed in the two sides of the warped plate, two bolts are correspondingly arranged near the lock holes, and the bolts achieve stirring according to the rotation of the torsional springs, so as to achieve the target of inserting into or retreating from the lock holes while the rotation force of the torsional springs is from the same stirring rod, so that the stirring rod can achieve locking and unlocking actions of the two bolts, and the chair back warped plate locking mechanism is simple and clever in structure and convenient to use.
Description
Technical field
The utility model relates to swivel chair, office chair technical field, particularly a kind of chair back seesaw locking mechanism.
Background technology
Revolving chair chassis, also claims Revolving chair tray, is a vitals that is contained in swivel chair seat cushion below, the lifting of seat cushion, and the elevation angle of backrest regulates and all relies on chassis to complete.
Current Revolving chair tray is generally comprised of parts such as top tray, lower joist, rotating shaft and spring assemblies, and after top rotary table and swivel chair seat back are fixing, swivel chair can be done suitable reclining around the shaft, and can initiatively reply, and makes user have comfort.For example, Chinese patent discloses a kind of pallet, and (patent No. is: 02287885.8), mainly comprise base plate, sliding seat, conical pipe and adjusting device, sliding seat is movably connected in base plate, in the middle of sliding seat, connect the conical pipe of air pressure rod, by Taper Pipe fixed head, be welded in sliding seat together with conical pipe; Described adjusting device includes adjusting rod, adjustable plate, torsion spring, torsion spring fixed head, and adjusting rod interts in sliding seat, and adjustable plate is fixedly connected on adjusting rod and inserts on the one end in sliding seat, the one side of adjustable plate contact air pressure rod, and another side is connected with torsion spring; On the another side of adjustable plate, be provided with adjustable plate and stop blade.
The adjusting device of above-mentioned Revolving chair tray regulates by torque spring completely, and for the different people of body weight, the power of needed torque spring needs different, makes product there is no good versatility.For this problem, the patent No. is: the Chinese patent of " 201020264417.6 " discloses a kind of adjustable revolving chair tray of rolling shaft, its utilization is carried in the restoring force that the gravity conduction of seat surface is backrest, can substantially realize the people who meets different weight and use and do not need and regulate.But while being sitting on the seat that above-mentioned pallet is installed reclining backward, because human body parts gravity is progressively increased by back rest supports and proportion, the gravity that is carried in seat surface is progressively diminished, the restoring force that gravity is transmitted to backrest diminishes thereupon, cause backrest restoring force deficiency when maximum reclining angle, cannot reach best restoring force.
A kind of Revolving chair chassis of special research and development design, comprise connecting the base of gas bar, in order to the bracket of fixing seat support and in order to connect the seesaw of the chair back, bracket is arranged in base, and seesaw is arranged in bracket, and bracket is connected with elasticity reset device, its principle is to adopt four-point linkage mechanism, the conduction of formation power, seesaw middle part is rotating fulcrum, overturn in seesaw rear portion under the effect of the chair back, seesaw front portion is by linkage and bracket is hinged and prize obliquely bracket, makes bracket and seesaw form interlock; In this conducting structure, the chair back is connected and fixed on seesaw as the driving force of four-point linkage mechanism, the gravity that human body puts on seat support is applied to the restoring force of four-point linkage mechanism by the pin joint formation of four-point linkage mechanism and bracket, the driving force of four-point linkage mechanism and restoring force form Antagonistic Relationship; Therefore restoring force relies on littlely to the elastic-restoring force of elasticity reset device, and applicable crowd is wider, and the lighter or heavier people of body weight like a cork reclining and reply stands up.
But some people wishes that the chair back is locked in to one identifies oneself comfortable position, to carry out lunch break or to have a rest for a long time, so need to design a kind of seesaw locking mechanism, solve this problem, original intention is seesaw to be locked in to one identify oneself suitable position, also just the chair back has been fixed on corresponding position.
Summary of the invention
The utility model has overcome existing deficiency in above-mentioned prior art, and a kind of seesaw locking mechanism that can lock the swivel chair chair back is provided, thereby the chair back can be locked in to any one fixing angle.
The technical solution of the utility model is achieved in that
A chair back seesaw locking mechanism, comprises and is symmetricly set on the row's lockhole of one on seesaw both sides, is symmetricly set on two torsion springs, two latches and two plug housings of the inner both sides of base; Plug housing is fixedly installed on base, and latch slides to intert and coordinates on plug housing and with lockhole, and the first spring arm of torsion spring is connected with latch, and the second spring arm of torsion spring is connected to one for driving torsion spring to carry out the drive unit of back rotation.By above-mentioned locking mechanism, the chair back can be fixed on to the position that certain user feels comfortably cool.
As preferably, described drive unit comprises crank, positioning seat and driving lever, positioning seat and base are fixedly linked, positioning seat is arch and inner hollow, the upper end of positioning seat inside is provided with a projection to downward-extension, arranging of projection is divided into two locating slots by positioning seat inner upper end, in positioning seat, be provided with fixture block, the upper end of fixture block is stuck in locating slot, the two ends of crank are connected with the second spring arm of two torsion springs, and crank connects fixture block by rocking bar, one end of driving lever is fixedly linked through base and fixture block, and the other end of driving lever is exposed to outside base; Driving lever is stirred in front and back, fixture block is moved on in another locating slot from a locating slot, fixture block rotates and drives crank to move, thereby drive two torsion springs to rotate simultaneously, under the elastic force effect of torsion spring, the first spring arm pulls latch to insert corresponding lockhole or from exiting to realize locking, the release of latch in lockhole.Adopt same driving lever to realize the locking of two latches, release action, structure is simplified and is ingenious, easy to use.
As preferably, described drive unit also comprises that two in order to install the column of torsion spring, each column upper end has screwed a screw, torsion spring set is located on screw, column lower end is put up a bridge and is fixedly linked with base by an arch, between arch bridging and base end face, form axis hole, driving lever is put up a bridge and is connected with fixture block through one of them arch.
Adopted design starting point of the present utility model, theory and the beneficial effect of technique scheme to be:
The utility model is respectively provided with row's lockhole in seesaw both sides, in the other correspondence of lockhole, be provided with two latches, latch is according to torsion spring, to rotate to realize to stir to reach the object of inserting or exiting lockhole, and the rotatory force of two torsion springs comes from same driving lever, make to stir a driving lever and just can realize the locking of two latches, release action, structure is simplified and is ingenious, easy to use.
Accompanying drawing explanation
Fig. 1 is the structural representation of chair back seesaw locking mechanism;
Fig. 2 is the latch of the chair back seesaw locking mechanism schematic diagram in unlocked state;
Fig. 3 is the latch of the chair back seesaw locking mechanism schematic diagram in initial angle lock-out state;
Fig. 4 is the latch of the chair back seesaw locking mechanism schematic diagram in maximum angle lock-out state;
Fig. 5 is the structural representation of another angle of chair back seesaw locking mechanism;
Fig. 6 is the fit structure schematic diagram of crank, positioning seat and fixture block in drive unit under latch released state;
Fig. 7 is the fit structure schematic diagram of crank, positioning seat and fixture block in drive unit under latch locking state.
The specific embodiment
The specific embodiment of the present utility model is as follows:
Embodiment: the reference azimuth that first defines each parts of the utility model, the utility model by chassis and swivel chair when normal mounting is used, the place ahead of swivel chair is front end, and the rear of swivel chair comprises that the position at backrest place is rear end, the front end on chassis is the region away from seesaw, and the rear end on chassis is the region near seesaw.
As shown in Fig. 1～7, chair back seesaw locking mechanism of the present utility model comprises and is symmetricly set on one on seesaw 3 both sides rows lockhole 21, is symmetricly set on two torsion springs 22 of base 1 inner both sides, two latches 23 and two plug housings 24; Plug housing 24 is fixedly installed on base 1, and latch 23 slides to intert and coordinates on plug housing 24 and with lockhole 21, and the first spring arm 25 of torsion spring 22 is connected with latch 23, and the second spring arm 26 of torsion spring 22 is connected to one for driving torsion spring 22 to carry out the drive unit of back rotation.
Described drive unit comprises crank 27, positioning seat 28 and driving lever 29, positioning seat 28 is fixedly linked with base 1, positioning seat 28 is arch and inner hollow, the upper end of positioning seat 28 inside is provided with a curved projection 30 to downward-extension, arranging of projection 30 is divided into two locating slots 31 by positioning seat 28 inner upper end, in positioning seat 28, be provided with fixture block 35, fixture block 35 is the large structure in little bottom, top, the lower cross section of fixture block 35 is circular, fixture block 35 tops are tapered, and the sectional area of fixture block 35 reduces from bottom to top gradually, the upper end of fixture block 35 is stuck in locating slot 31, the two ends of crank 27 are connected with the second spring arm 26 of two torsion springs 22, and crank 27 connects fixture block 35 by rocking bar 32, one end of driving lever 29 is fixedly linked with fixture block 35 through the gripper shoe 5 of base 1, the other end of driving lever 29 is exposed to outside base 1, driving lever 29 is stirred in front and back, fixture block 35 is moved on in another locating slot 31 from a locating slot 31, fixture block 35 rotates and drives crank 27 to move, thereby drive two torsion springs 22 to rotate simultaneously, under the elastic force effect of torsion spring 22, the first spring arm 25 pulls latch 23 to insert corresponding lockholes 21 or from exiting to realize locking, the release of latch 23 in lockhole 21.
Described drive unit also comprises that two in order to install the column 33 of torsion spring 22, each column 33 upper end has screwed a screw 39, torsion spring 22 is set on screw 39, column 33 lower ends are fixedly linked with the base plate 4 of base 1 by an arch bridging 34, between arch bridging 34 and base 1 bottom surface, form axis hole 40, driving lever 29 is connected with fixture block 35 through one of them arch bridging 34.Meanwhile, this chassis also comprises that one in order to control the depression bar 38 of gas bar, and this depression bar 38 passes base again through turning round and ride over the installed position of gas bar after another arch bridging 34.
As shown in Figure 2, when in unlocked state, latch 23 departs from lockhole 21, and now, people sits on the seat, can be with the arbitrarily angled dependence chair back; As shown in Fig. 3,7, when the initial position in not leaning on and while making it to be in the lock state, stir driving lever 29, the resistance that makes the upper end of fixture block 35 overcome projection 30 moves on in left side locating slot 31 from the locating slot 31 on the right, fixture block 35 rotates and drives crank 27 to move, thereby drive two torsion springs 22 to rotate, under the elastic force effect of torsion spring 22, the first spring arm 25 pulls latch 23 to insert in corresponding lockhole 21 to realize the locking of latch 23 simultaneously.In the time need to adjusting the chair back to suitable position, stir driving lever 29 in the other direction, as shown in Fig. 2, Fig. 6, the resistance that makes the upper end of fixture block 35 overcome projection 30 moves on in the locating slot 31 of the right from the locating slot 31 on the left side, and torsion spring 22 rotating drive latches 23 are exited in lockhole 21, now, can lean on the chair back to suitable position, in the time need to remaining on this suitable position, then repeat action above, make latch 23 insert corresponding lockhole 21, realize locking.
Fig. 3 has shown that at the chair back latch 23 inserts jacks topmost and realizes locking not during reclining; As shown in Figure 4, when the chair back is in maximum elevation angle and while being locked, latch 23 inserts bottom jacks.
It should be noted that, backrest bracket locking mechanism is not limited only to above-mentioned mechanical mechanism, can also adopt gas bar to lock at an arbitrary position; Elasticity reset device, except adopting metal spring, can also adopt rubber spring or gas bar, can be also the combination of metal spring, the gentle bar of rubber spring.
Claims (3)
1. a chair back seesaw locking mechanism, is characterized in that: comprise and be symmetricly set on the row's lockhole of one on seesaw both sides, be symmetricly set on two torsion springs, two latches and two plug housings of the inner both sides of base; Plug housing is fixedly installed on base, and latch slides to intert and coordinates on plug housing and with lockhole, and the first spring arm of torsion spring is connected with latch, and the second spring arm of torsion spring is connected to one for driving torsion spring to carry out the drive unit of back rotation.
2. a kind of chair back seesaw locking mechanism according to claim 1, it is characterized in that: described drive unit comprises crank, positioning seat and driving lever, positioning seat and base are fixedly linked, positioning seat is arch and inner hollow, the upper end of positioning seat inside is provided with a projection to downward-extension, arranging of projection is divided into two locating slots by positioning seat inner upper end, in positioning seat, be provided with fixture block, the upper end of fixture block is stuck in locating slot, the two ends of crank are connected with the second spring arm of two torsion springs, and crank connects fixture block by rocking bar, one end of driving lever is fixedly linked through base and fixture block, the other end of driving lever is exposed to outside base, driving lever is stirred in front and back, fixture block is moved on in another locating slot from a locating slot, fixture block rotates and drives crank to move, thereby drive two torsion springs to rotate simultaneously, under the elastic force effect of torsion spring, the first spring arm pulls latch to insert corresponding lockhole or from exiting to realize locking, the release of latch in lockhole.
3. a kind of chair back seesaw locking mechanism according to claim 2, it is characterized in that: described drive unit also comprises that two in order to install the column of torsion spring, each column upper end has screwed a screw, torsion spring set is located on screw, column lower end is put up a bridge and is fixedly linked with base by an arch, between arch bridging and base end face, form axis hole, driving lever is put up a bridge and is connected with fixture block through one of them arch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320590650.7U CN203555410U (en) | 2013-09-24 | 2013-09-24 | Chair back warped plate locking mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320590650.7U CN203555410U (en) | 2013-09-24 | 2013-09-24 | Chair back warped plate locking mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203555410U true CN203555410U (en) | 2014-04-23 |
Family
ID=50505169
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320590650.7U Withdrawn - After Issue CN203555410U (en) | 2013-09-24 | 2013-09-24 | Chair back warped plate locking mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203555410U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103479120A (en) * | 2013-09-24 | 2014-01-01 | 浙江永艺家具股份有限公司 | Chair back wane lock mechanism |
| CN104207520A (en) * | 2014-09-18 | 2014-12-17 | 浙江永艺家具股份有限公司 | Chair back and rocker locking mechanism for chassis of swivel chair |
-
2013
- 2013-09-24 CN CN201320590650.7U patent/CN203555410U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103479120A (en) * | 2013-09-24 | 2014-01-01 | 浙江永艺家具股份有限公司 | Chair back wane lock mechanism |
| CN103479120B (en) * | 2013-09-24 | 2015-12-02 | 浙江永艺家具股份有限公司 | A kind of chair back wane lock mechanism |
| CN104207520A (en) * | 2014-09-18 | 2014-12-17 | 浙江永艺家具股份有限公司 | Chair back and rocker locking mechanism for chassis of swivel chair |
| CN104207520B (en) * | 2014-09-18 | 2017-02-22 | 永艺家具股份有限公司 | Chair back and rocker locking mechanism for chassis of swivel chair |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202874564U (en) | Swivel chair chassis | |
| CN103479112A (en) | Swivel chair base plate | |
| CN202536740U (en) | Dual-purpose chair for sitting and lying | |
| CN203555393U (en) | Swivel chair base plate capable of automatically restoring | |
| CN104207520B (en) | Chair back and rocker locking mechanism for chassis of swivel chair | |
| CN107625324A (en) | A kind of chair bottom and office chair | |
| CN103504845B (en) | A kind of carriage drive mechanism for Revolving chair chassis | |
| CN203555410U (en) | Chair back warped plate locking mechanism | |
| CN203555399U (en) | Swivel chair base plate | |
| CN203555412U (en) | Torsional spring drive device for chair-back wane lock mechanism | |
| CN203555409U (en) | Stirring rod positioning mechanism for chair back warped plate locking mechanism | |
| CN204181248U (en) | For the chair back wane lock mechanism of Revolving chair chassis | |
| CN103479120B (en) | A kind of chair back wane lock mechanism | |
| CN206275446U (en) | For the chair back wane lock mechanism of chair bottom | |
| CN203576019U (en) | Swivel chair chassis capable of automatically resetting | |
| CN201064295Y (en) | Adjustable rocking chair | |
| CN203576021U (en) | Support rack driving mechanism used in swivel chair chassis | |
| CN204181247U (en) | For the bolt driving device of chair back wane lock mechanism in Revolving chair chassis | |
| CN212878495U (en) | Back seat linkage device for chair | |
| CN102846067A (en) | Back locking mechanism for swivel chair | |
| CN203378783U (en) | Self-weight base plate for pushing seat part through back part of chair | |
| CN202069218U (en) | Rocking chair | |
| CN204181249U (en) | For the elasticity reset device of Revolving chair chassis | |
| CN202138246U (en) | Rotating chair for engineering machinery cab | |
| CN203555396U (en) | Elastic restoring mechanism for swivel chair base plate |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140423 Effective date of abandoning: 20151202 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |