CN209219579U - Seat back synchronizing linkage and seat - Google Patents
Seat back synchronizing linkage and seat Download PDFInfo
- Publication number
- CN209219579U CN209219579U CN201821556935.8U CN201821556935U CN209219579U CN 209219579 U CN209219579 U CN 209219579U CN 201821556935 U CN201821556935 U CN 201821556935U CN 209219579 U CN209219579 U CN 209219579U
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- China
- Prior art keywords
- connecting rod
- pin shaft
- plate
- bracket
- synchronizing linkage
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Abstract
The utility model relates to a kind of back synchronizing linkage and seats, the wraping plate including the pedestal for connecting gas bar, for connecting the bracket of seat and for connecting backrest；Four-bar mechanism is connected and composed by first connecting rod, second connecting rod and third connecting rod between pedestal, bracket and wraping plate three；The two sides of the wraping plate lower end extend to form forward side plate, and one end of first connecting rod is hinged with the rear portion of pedestal, bracket simultaneously, and the other end of first connecting rod and the lower end of wraping plate are hinged；One end of the third connecting rod and the front end of pedestal are hinged, and the other end of third connecting rod and side plate front end are hinged；One end of second connecting rod and bracket are hinged, and the other end of second connecting rod and the middle part of third connecting rod are hinged.When wraping plate driver under stress rotates, lower drive bracket front end is acted on by first connecting rod, second connecting rod and third connecting rod and is tilted.The utility model is all assembled using simple connecting rod, and structure is simple, and technique is simplified, and stability is high, greatly reduces production cost.
Description
Technical field
The utility model belongs to technical field of furniture more particularly to a kind of back synchronizing linkage and seat.
Background technique
The level of comfort of chair is directly related to the quality of working life of people.More and more enterprises are all in research seat back
Linkage mechanism improves the comfort level of seat to realize adaptive function.
Structure is complicated for the back of seat used in the seat of market linkage mechanism at present, and production and processing difficulty is high, cause cost compared with
It is high；Such as the Publication No. of the applicant: the utility model patent of " CN104223821B " discloses a kind of Revolving chair chassis, the chassis
Four-bar mechanism is constituted by multiple connecting rods and bracket, pedestal, when the wraping plate being connected with backrest rotates, bracket connected to the seat is whole
Body moves backward upwards, and according to human body weight, backrest reclining restoring force has corresponding matching so that no matter weight gently or again
People can easily reclining reply stand up；The body chassis is primarily adapted for use in office chair；For leisure chaise longue, it usually needs
Wide-angle layback rest, it is therefore desirable to which seat front end can tilt, therefore it is simple, easy to manufacture to need to study a kind of structure
Seat back linkage mechanism meets the needs in market.
Summary of the invention
In order to solve the above technical problems, the utility model provides firstly the seat back that a kind of structure is simple, at low cost
Synchronizing linkage, which carries on the back linkage while wraping plate large rotation angle, so that bracket front end can be stuck up with maximum height
It rises, can be realized seat with backrest and move synchronously, human body is made to keep comfortable posture；Make user in reclining process simultaneously
In, backrest is close to human body back always and is not subjected to displacement, and guarantees comfort.And it can be logical with body weight while bracket tilting
A power can be transmitted to backrest by crossing bracket, reduce the resistance that backrest gets up.
The purpose of this utility model, which also resides in, provides a kind of seat using above-mentioned seat back synchronizing linkage；Further
It says, seat is carried on the back synchronizing linkage and is applied on seat especially leisure chaise longue, so that the angle that backrest has fallen is bigger, user can be with
It is more comfortably seated or recumbency is rested.
In order to achieve the above purpose, the utility model uses technical solution below:
A kind of back synchronizing linkage, including the pedestal for connecting gas bar, for connecting the bracket and use of seat
In the wraping plate of connection backrest；Pass through first connecting rod, second connecting rod and third connecting rod connection between pedestal, bracket and wraping plate three
Constitute four-bar mechanism；The two sides of the wraping plate lower end extend to form forward side plate, one end of first connecting rod simultaneously with pedestal, support
The rear portion of frame is hinged, and the other end of first connecting rod and the lower end of wraping plate are hinged；One end of the third connecting rod and the front end of pedestal
Hingedly, the other end of third connecting rod and side plate front end are hinged；One end of second connecting rod and bracket are hinged, the other end of second connecting rod
It is hinged with the middle part of third connecting rod.When wraping plate driver under stress rotates, pass through first connecting rod, second connecting rod and third connecting rod
Lower drive bracket front end is acted on to tilt.
Preferably, the rear end that pedestal is arranged in of the wraping plate, the pedestal includes the bottom plate for connecting gas bar, institute
It states and is respectively provided with a support plate at left and right sides of bottom plate；The bracket includes the top plate for fixing seat frame bracket in seat, described
An otic placode is respectively provided at left and right sides of top plate, one end of the support plate, the rear end of otic placode and first connecting rod is hinged；Before otic placode
It holds hinged with one end of second connecting rod；One end of the third connecting rod and the front end of support plate are hinged.
Preferably, the rear end of the support plate, otic placode and one end of first connecting rod are equipped with the first pin shaft, first connecting rod
It is symmetricly set on the two sides of support plate；The bottom of the wraping plate and the other end of first connecting rod are equipped with the second pin shaft；The ear
The front end of plate and one end of second connecting rod are equipped with third pin shaft, and second connecting rod is symmetricly set on otic placode two sides；The support plate
Front end and one end of third connecting rod be equipped with the 4th pin shaft, the two sides of support front edge of board are arranged in third connecting rod；The side plate
Front end and the other end of third connecting rod be equipped with the 5th pin shaft；The other end of the second connecting rod and third connecting rod are hinged,
Hinge joint is between the 4th pin shaft and the 5th pin shaft.
Preferably, the backrest includes back bracket, the back bracket and the plug connection of wraping plate rear end.
Preferably, the wraping plate two sides bend inwards to form backrest mounting groove, the back bracket lower end is provided with slotting
The plug division grafting of socket part, back bracket enters backrest mounting groove.
Preferably, the plug division and backrest mounting groove are in U-shape, the two size matches.
Preferably, first pin shaft is a whole root long axis, the both ends of the first pin shaft pass through support plate, otic placode and the
One connecting rod.
Preferably, first pin shaft is two independent short axles, two first pin shafts respectively pass through support plate, otic placode
And first connecting rod.
Preferably, second pin shaft is a whole root long axis, the both ends of the second pin shaft pass through the bottom and first of wraping plate
The other end of connecting rod.
Preferably, second pin shaft is two independent short axles, the bottom for respectively passing through wraping plate of two second pin shafts
The other end in portion and first connecting rod.
Preferably, the third pin shaft is a whole root long axis, the both ends of the first pin shaft pass through otic placode and second connecting rod.
Preferably, the third pin shaft is two independent short axles, two third pin shafts respectively pass through otic placode and second
Connecting rod.
Preferably, the 4th pin shaft is a whole root long axis, the both ends of the 4th pin shaft pass through the front end and the of support plate
Three-link.
Preferably, the 4th pin shaft is two independent short axles, before two the 4th pin shafts respectively pass through support plate
End and third connecting rod.
Preferably, the 5th pin shaft is a whole root long axis, the both ends of the 5th pin shaft pass through front end and the third of side plate
Connecting rod.
Preferably, the 5th pin shaft is two independent short axles, two the 5th pin shafts respectively pass through the front end of side plate
And third connecting rod.
Preferably, the front end of the side plate exceeds pedestal and bracket.
Preferably, the second connecting rod is quarter butt, third connecting rod is stock.
Preferably, the centre of the bottom plate is provided with the axle sleeve for connecting gas bar.
Preferably, being provided with the mounting plate of trunnion between the both ends of the first connecting rod, branch is installed on a mounting board
Ear, the mounting plate and second connecting rod main body are not in the same plane.
A kind of seat tool, including gas bar, seat frame bracket, back bracket and above-mentioned seat carry on the back synchronizing linkage, the gas
Bar connects pedestal, seat frame bracket connecting bracket, and back bracket connects wraping plate.
Compared with prior art, the utility model has the beneficial effects that
1. the seat of the utility model carries on the back synchronizing linkage, when wraping plate rotates backward, wraping plate is with the both ends of first connecting rod
Hinge hole center away from for radius of turn, rotated by rotation center of first shaft hole, so that third connecting rod follows wraping plate around second
Axis hole rotation, third connecting rod drive second connecting rod movement, and second connecting rod, which moves up, supports bracket around rear bracket part and pedestal
Hinge joint rotation, bracket front end lifting, to realize the linkage function that backrest falls down, seat is raised.
2. the seat back synchronizing linkage of the utility model is all assembled using simple connecting rod, structure is simple, technique
It simplifies, stability is high, greatly reduces production cost.
3. the seat back synchronizing linkage of the utility model is small in size, can be with when being used cooperatively with seat or leisure chaise longue
It is hidden in below the seat frame bracket of seat completely, not only beautiful but also saving space, is conducive to seat or leisure chaise longue product manufacturing is various outer
Shape.
4. the seat back synchronizing linkage of the utility model can be used as a component and apply on multiple product, realize
The modularization of finished product, reduces development cost.
5. the seat back synchronizing linkage of the utility model when being applied to seat, passes through back bracket, the synchronous connection of seat back
The linkage of dynamic device and seat frame bracket, so that user, during reclining, mounting bracket moves synchronously therewith, seat can rise always
To the effect of support human body waist, effectively avoids the occurrence of " running waist ", be conducive to human health；Such design simultaneously,
Since seat and backrest move synchronously, so that user, during reclining, backrest is close to human body back always and is not subjected to displacement, protect
Demonstrate,prove comfort；Seat back synchronizing linkage is connected by a series of hinges, the relationship of interaction is formed, by shouldering down process
In, body weight, which carries on the back synchronizing linkage by seat, can transmit a power to backrest, reduce the resistance that backrest gets up.
Detailed description of the invention
Fig. 1 is the explosive view one of seat back and handrail synchronous interaction mechanism in embodiment.
Fig. 2 is the explosive view two of seat back with handrail synchronous interaction mechanism.
Fig. 3 is the explosive view three of seat back with handrail synchronous interaction mechanism.
Fig. 4 is that seat carries on the back the status diagram that mechanism is synchronized with handrail to backrest in the initial state.
Fig. 5 is the status diagram of backrest seat back and handrail synchronous interaction mechanism in the state of layback.
The status diagram of seat back and handrail synchronous interaction mechanism when Fig. 6 is backrest reclined by angle maximum.
Fig. 7 is that seat carries on the back the structural schematic diagram that mechanism is synchronized with handrail to backrest in the initial state.
Fig. 8 is the structural schematic diagram of backrest seat back and handrail synchronous interaction mechanism in the state of layback.
Fig. 9 is the structural schematic diagram of backrest seat back and handrail synchronous interaction mechanism in reclined by angle maximum.
Figure 10 is the utility model seat back synchronizing linkage i.e. explosive view of pallet body.
Figure 11 is the status diagram of backrest pallet body in the initial state.
Figure 12 is the structural schematic diagram one of backrest pallet body in the initial state.
Figure 13 is the structural schematic diagram two of backrest pallet body in the initial state.
Figure 14 is status diagram of the backrest in layback state subiculum disc mechanism.
Figure 15 is structural schematic diagram one of the backrest in layback state subiculum disc mechanism.
Figure 16 is structural schematic diagram two of the backrest in layback state subiculum disc mechanism.
Figure 17 is the status diagram of backrest pallet body in reclined by angle maximum.
Figure 18 is the structural schematic diagram one of backrest pallet body in reclined by angle maximum.
Figure 19 is the structural schematic diagram two of backrest pallet body in reclined by angle maximum.
Figure 20 is the structural schematic diagram of handrail slider groove portion.
Figure 21 is the partial enlarged view in Fig. 4 at A.
Figure 22 is the partial enlarged view in Fig. 5 at B.
Figure 23 is the partial enlarged view in Fig. 6 at C.
It is identified in figure as follows:
Pallet body 1, back bracket 2, seat frame bracket 3, rear enclosed handrail 4, handrail slider groove portion 41, handrail rotation axis
42, axis hole mounting portion 21, axis hole 211, fixed part 411, slide groove portion 412, sliding slot 4121, sliding spacer 43, pedestal 11, bracket
12, wraping plate 13, bottom plate 111, support plate 112, top plate 121, otic placode 122, the first pin shaft 33, first connecting rod 34, the second pin shaft 35,
Third pin shaft 36, second connecting rod 37, the 4th pin shaft 38, third connecting rod 39, side plate 131, the 5th pin shaft 30, backrest mounting groove 132,
Plug division 22, axle sleeve 1111, trunnion 342, mounting plate 341, first shaft hole 113, the second axis hole 114, third axis hole the 123, the 4th
Axis hole 124, the 5th axis hole 133,134 first connecting hole 343 of the 6th axis hole, the second connecting hole 344, third connecting hole the 345, the 4th
Connecting hole 371, the 5th connecting hole 372, the 6th connecting hole 391, the 7th connecting hole 392, the 8th connecting hole 393, seat frame 31, outline border
312, cross bar 311, handrail hinge hole 313, munnion 32, axle bed 321, reinforcing rod 33, back part 45, armrest part 46.
Specific embodiment
Specific embodiment of the present utility model is made a detailed explanation with reference to the accompanying drawing.
Define the reference azimuth of each component of the utility model first, the utility model by seat in normal mounting in use,
The front of seat is front end, front, and it is rear end, rear portion that the rear of seat, which includes position where backrest,.
The seat back synchronizing linkage of the utility model is the important component that seat back synchronizes mechanism with handrail, such as
A kind of back shown in FIG. 1 to FIG. 9 synchronizes mechanism with handrail, which includes pallet body 1, back bracket
2, seat frame bracket 3 and rear enclosed handrail 4.Wherein pallet body 1 refers to the seat back synchronizing linkage of the utility model.
Enclosed handrail 4 is generally used on couch or leisure chaise longue afterwards, is different from after traditional handrails are characterized in that
Enclosed handrail 4 is wrapped the two sides at seat rear portion and seat by seat rear portion to two sides, if without backrest, after
The rear end of enclosed handrail 4 can be with the effect of backrest, if there is backrest, and rear enclosed handrail 4 can be by the lower part of backrest
Package, this feature of rear enclosed handrail 4 will provide the user with preferably comfortable experience.
The pallet body 1 as shown in Figure 10~Figure 19 is that seat carries on the back synchronizing linkage, which includes for connecting
The pedestal 11 of gas bar, the wraping plate 13 for the bracket 12 of fixing seat frame bracket 3 and for connecting back bracket 2, wraping plate 13
The rear end of pedestal 11 is arranged in lower end；Pedestal 11 is due to grafting gas bar, so pedestal 11 is fixed；Pedestal 11, bracket
Four-bar mechanism is connected and composed by first connecting rod 34, second connecting rod 37 and third connecting rod 39 between 12 and 13 three of wraping plate；
The two sides of 13 lower end of wraping plate extend to form forward side plate 131, one end of first connecting rod 34 simultaneously with pedestal 11, bracket 12
Rear portion is hinged, and the lower end of the other end and wraping plate 13 of first connecting rod 34 is hinged；One end of the third connecting rod 39 and pedestal 11
Front end is hinged, and the other end of third connecting rod 39 and 131 front end of side plate are hinged；One end of second connecting rod 37 and bracket 12 are hinged, the
The middle part of the other end and third connecting rod 39 of two connecting rods 37 is hinged.
Specifically, pedestal 11 includes for connecting the bottom plate 111 of gas bar and the left and right sides of bottom plate 111 being arranged in
Support plate 112, the centre of bottom plate 111 are provided with the axle sleeve 1111 for connecting gas bar.Bracket 12 includes for fixing seat frame branch
The top plate 121 of frame 3 and the otic placode 122 that 121 left and right sides of top plate is set；The support plate 112, otic placode 122 rear end and
One end of first connecting rod 34 is hinged；The front end of otic placode 122 and one end of second connecting rod 37 are hinged；One end of the third connecting rod 39
It is hinged with the front end of support plate 112.
First shaft hole 113 and the second axis hole 114, and the second axis are symmetrically offered in rear end, the front end two sides of support plate 112
The horizontal position in hole 114 is identical with the level height of first shaft hole 113.It is symmetrically offered in rear end, the front end two sides of otic placode 122
Third axis hole 123 and the 4th axis hole 124, and the level height of third axis hole 123 is higher than the level height of the 4th axis hole 124.
The two sides of 13 lower end of wraping plate extend to form forward side plate 131, and the front end of side plate 131 exceeds pedestal 11 and bracket 12.Two
Rear end, the front end of the side plate 131 of side symmetrically offer the 5th axis hole 133 and the 6th axis hole 134.It is additionally provided in pallet body 1
First pin shaft 33, the second pin shaft 35, third pin shaft 36, the 4th pin shaft 38, the 5th pin shaft 30, the 6th pin shaft 40 and first connecting rod
34, the structures such as second connecting rod 37, third connecting rod 39, are used for and pedestal 11, bracket 12 and wraping plate 13 cooperatively form four-bar mechanism,
So that the movements such as the tilting of bracket 12 may be implemented in pallet body 1.
Wherein the both ends of first connecting rod 34 are respectively arranged with the first connecting hole 343 and the second connecting hole 344, in first connecting rod
It is provided with mounting plate 341 between 34 both ends, and mounting plate 341 and 37 main body of second connecting rod are not in the same plane, are installing
Plate 341 offers third connecting hole 345 on mounting plate 341, and trunnion 342, trunnion 342 are equipped on third connecting hole 345
For installing the power sources part such as gas bar or motor.First connecting hole 343, the second connecting hole 344 and third connecting hole 345 be not one
On straight line.Second connecting rod 37 is quarter butt, offers the 4th connecting hole 371 and the 5th connection respectively at the both ends of second connecting rod 37
Hole 372.Third connecting rod 39 is stock, and the 6th connecting hole 391, the 7th connecting hole 392 and the are offered on third connecting rod 39
Eight connecting holes 393, wherein the 6th connecting hole 391 and the 7th connecting hole 392 are located at the both ends of third connecting rod 39, the 8th connecting hole
393 between the first connecting hole 391 and the 7th connecting hole 392, the 8th connecting hole 393 and closer to the 6th connecting hole 391.The
One connecting rod, second connecting rod and third connecting rod it is equal there are two, and be symmetrical arranged.
First pin shaft 33 is placed through the rear end first shaft hole 113 of support plate 112 and otic placode 122, third axis hole 123 and
By the both ends Pressing Deformation of the first pin shaft 33 to realize support plate 112, otic placode 122 after the first connecting hole 343 on one connecting rod 34
Axial restraint between 34 three of first connecting rod.Wherein the first pin shaft 33 can be a whole root long axis, the two of the first pin shaft 33
End respectively passes through support plate 112, otic placode 122 and first connecting rod 34；Correspondingly, the first pin shaft 33 may be two independent
Short axle, two first pin shafts 33 respectively pass through support plate 112, otic placode 122 and first connecting rod 34.
After second pin shaft 35 passes through the 5th axis hole 133 of 131 rear end of side plate and the second connecting hole 344 on first connecting rod 34
By the both ends Pressing Deformation of the second pin shaft 35 to realize the axial restraint between side plate 131 and first connecting rod 34.Wherein the second pin
Axis 35 can be a whole root long axis, and the both ends of the second pin shaft 35 respectively pass through side plate 131 and first connecting rod 34；Correspondingly,
Two pin shafts 35 or two independent short axles, two second pin shafts 35 respectively pass through side plate 131 and first connecting rod 34.
Third pin shaft 36 is placed through the 4th connecting hole on the 4th axis hole 124 and second connecting rod 37 of 122 front end of otic placode
The both ends Pressing Deformation of third pin shaft 36 is realized to the axial restraint between otic placode 122 and second connecting rod 37 after 371.Wherein
Three pin shafts 36 can be a whole root long axis, and the both ends of third pin shaft 36 respectively pass through otic placode 122 and second connecting rod 37；Accordingly
Ground, third pin shaft 36 or two independent short axles, two third pin shafts 36 respectively pass through otic placode 122 and second connecting rod
37。
4th pin shaft 38 is placed through the 6th company on the second axis hole 114 and third connecting rod 39 of 112 front end of support plate
It connects the both ends Pressing Deformation of the 4th pin shaft 38 behind hole 391 to realize the axial restraint between support plate 112 and third connecting rod 39.
Wherein the 4th pin shaft 38 can be a whole root long axis, and the both ends of the 4th pin shaft 38 respectively pass through support plate 112 and third connecting rod
39；Correspondingly, the 4th pin shaft 38 or two independent short axles, two the 4th pin shafts 38 respectively pass through support plate 112 with
And third connecting rod 39.
5th pin shaft 30 is placed through the 7th connecting hole on the 6th axis hole 134 and third connecting rod 39 of 131 front end of side plate
By the both ends Pressing Deformation of the 5th pin shaft 30 to realize the axial restraint between side plate 131 and third connecting rod 39 after 392.Wherein
Five pin shafts 30 can be a whole root long axis, and the both ends of the 5th pin shaft 30 respectively pass through side plate 131 and third connecting rod 39；Accordingly
Ground, the 5th pin shaft 30 or two independent short axles, two the 5th pin shafts 30 respectively pass through side plate 131 and third connecting rod
39。
6th pin shaft 40 passes through the 8th connecting hole on the 5th connecting hole 372 and third connecting rod 39 on second connecting rod 37
By the both ends Pressing Deformation of the 6th pin shaft 40 to realize the axial restraint between second connecting rod 37 and third connecting rod 39 after 393.Its
In the 6th pin shaft 40 can be a whole root long axis, the both ends of the 6th pin shaft 40 respectively pass through second connecting rod 37 and third connecting rod 39；
Correspondingly, the 6th pin shaft 40 or two independent short axles, two the 6th pin shafts 40 respectively pass through second connecting rod 37 and the
Three-link 39.
13 two sides of wraping plate bend inwards to form the backrest mounting groove 132 of U-shaped, as shown in Figure 10~Figure 19.In back bracket 2
The plug division 22 of U-shaped is provided at the center of lower end, as shown in FIG. 1 to 3.22 grafting of plug division of 2 lower end of back bracket enters
It is both fixed by screw after backrest mounting groove 132.The two sides of plug division 22 are provided with axis hole mounting portion 21, axis hole mounting portion
21 lower end offers axis hole 211.
As shown in FIG. 1 to 3, the seat frame bracket 3 includes seat frame 31, and seat frame 31 includes the outline border 312 for being similar to rectangle
And both ends are fixed on the cross bar 311 of 31 left and right sides of seat frame, divide on the composition bar and cross bar 311 of 312 rear end of outline border
It does not open up there are two fixation hole, while corresponding position opens up that there are four the fixation holes matched on top plate 121, between the two
It is fixed by screw.Opposite handrail hinge hole 313 is provided in the front end two sides of outline border 312, rear 4 two sides of enclosed handrail
Front end and handrail hinge hole 313 are rotatablely connected by a pin shaft.Munnion 32 is welded on the lower end surface of cross bar 311, in munnion
32 bottom rail side is provided with axle bed 321, and the driving device for driving leg rest extension means is installed on axle bed 321.It is present
Reinforcing rod 33 is further fixed on frame bracket 3, one end of reinforcing rod 33 is fixed on outline border 312, and the other end of reinforcing rod 33 is fixed
On munnion 32, for reinforcing the firmness of munnion 32.
As shown in Figure 1, Figure 2, shown in Fig. 3 and Figure 20, rear enclosed handrail 4 includes being located at rear end to wrap 2 lower end of back bracket
The back part 45 wrapped up in and and extend the armrest part 46 constituted forward by back part 45, the front end of armrest part 46 with respectively with seat
The two sides of frame bracket 3 are hinged.The installation for installing handrail slider groove portion 41 is provided on the back part 45 of enclosed handrail 4 afterwards
Bar 44, the both ends of mounting rod 44 and the left and right sides of rear enclosed handrail 4 offset.Handrail slider groove portion 41 includes fixed part 411
With slide groove portion 412, fixed part 411 and slide groove portion 412 are in 90 °, and handrail slider groove portion 41 is mounted on mounting rod by fixed part 411
44 both ends.Slide groove portion 412 is provided with sliding slot 4121, which is in be arranged obliquely from the front to the back.In handrail slider slot
It is additionally provided with sliding spacer 43 in portion 41, will be helped after handrail rotation axis 42 passes through axis hole 211, sliding slot 4121, sliding spacer 43
The both ends Pressing Deformation of hand rotation axis 42, so that being fixed in axial direction between this three.
When by falling behind, 3 front end of seat frame bracket is upturned under the action of pallet body 1, and enclosed is helped after drive
The armrest part 46 of hand 4 is upturned simultaneously；Handrail rotation axis 42 applies pressure to handrail slider groove portion 41 simultaneously, thus after driving
The rear end of enclosed handrail 4 rotates backward around handrail rotation axis 42.
Above content is only illustrate to examples for clearly illustrating the present invention described in this specification.The utility model
Person of ordinary skill in the field can make various modifications or additions to the described embodiments or using class
As mode substitute, content without departing from the utility model specification or surmount model defined in the claims
It encloses, all should belong to the protection range of the utility model.
Claims (21)
1. a kind of back synchronizing linkage, it is characterised in that: including the pedestal (11) for connecting gas bar, for connecting seat
Bracket (12) and wraping plate (13) for connecting backrest；Pass through between pedestal (11), bracket (12) and wraping plate (13) three
First connecting rod (34), second connecting rod (37) and third connecting rod (39) connect and compose four-bar mechanism；Wraping plate (13) lower end
Two sides extend to form forward side plate (131), one end of first connecting rod (34) is cut with scissors with the rear portion of pedestal (11), bracket (12) simultaneously
It connects, the lower end of the other end and wraping plate (13) of first connecting rod (34) is hinged；One end and pedestal (11) of the third connecting rod (39)
Front end it is hinged, the other end of third connecting rod (39) and side plate (131) front end are hinged；One end of second connecting rod (37) and bracket
(12) hingedly, the other end of second connecting rod (37) and the middle part of third connecting rod (39) are hinged.
2. according to a kind of back synchronizing linkage described in claim 1, it is characterised in that: the setting of the wraping plate (13) is the bottom of at
The rear end of seat (11), the pedestal (11) includes the left and right sides of the bottom plate (111) for connecting the bottom plate of gas bar (111)
It is respectively provided with a support plate (112)；The bracket (12) includes the top plate (121) for fixing seat frame bracket (3) in seat, described
It is respectively provided at left and right sides of top plate (121) otic placode (122), the support plate (112), the rear end of otic placode (122) and first connect
One end of bar (34) is hinged；The front end of otic placode (122) and one end of second connecting rod (37) are hinged；The one of the third connecting rod (39)
It holds hinged with the front end of support plate (112).
3. according to a kind of back synchronizing linkage as claimed in claim 2, it is characterised in that: the support plate (112), otic placode
(122) one end of rear end and first connecting rod (34) is equipped with the first pin shaft (33), and first connecting rod (34) is symmetricly set on support
The two sides of plate (112)；The bottom of the wraping plate (13) and the other end of first connecting rod (34) are equipped with the second pin shaft (35)；It is described
The front end of otic placode (122) and one end of second connecting rod (37) are equipped with third pin shaft (36), and second connecting rod (37) is symmetricly set on
Otic placode (122) two sides；The front end of the support plate (112) and one end of third connecting rod (39) are equipped with the 4th pin shaft (38), the
Three-link (39) is arranged in the two sides of support plate (112) front end；The front end of the side plate (131) and third connecting rod (39) it is another
End is equipped with the 5th pin shaft (30)；Hingedly, hinge joint is for the other end of the second connecting rod (37) and third connecting rod (39)
Between four pin shafts (38) and the 5th pin shaft (30).
4. according to a kind of back synchronizing linkage described in claim 1, it is characterised in that: the backrest includes back bracket
(2), the back bracket (2) and wraping plate (13) rear end plug connection.
5. according to a kind of back synchronizing linkage as claimed in claim 4, it is characterised in that: wraping plate (13) two sides are inwardly curved
Folding is formed backrest mounting groove (132), and back bracket (2) lower end is provided with plug division (22), the plug division of back bracket (2)
(22) grafting enters backrest mounting groove (132).
6. according to a kind of back synchronizing linkage described in claim 5, it is characterised in that: the plug division (22) and backrest peace
Tankage (132) is in U-shape, and the two size matches.
7. according to a kind of back synchronizing linkage as claimed in claim 3, it is characterised in that: first pin shaft (33) is one whole
The both ends of root long axis, the first pin shaft (33) pass through support plate (112), otic placode (122) and first connecting rod (34).
8. according to a kind of back synchronizing linkage as claimed in claim 3, it is characterised in that: first pin shaft (33) is two
Independent short axle, two first pin shafts (33) respectively pass through support plate (112), otic placode (122) and first connecting rod (34).
9. according to a kind of back synchronizing linkage as claimed in claim 3, it is characterised in that: second pin shaft (35) is one whole
The both ends of root long axis, the second pin shaft (35) pass through the bottom of wraping plate (13) and the other end of first connecting rod (34).
10. according to a kind of back synchronizing linkage as claimed in claim 3, it is characterised in that: second pin shaft (35) is two
The independent short axle of root, the other end of the respective bottom for passing through wraping plate (13) and first connecting rod (34) of two second pin shafts (35).
11. according to a kind of back synchronizing linkage as claimed in claim 3, it is characterised in that: the third pin shaft (36) is one
The both ends of whole root long axis, the first pin shaft (33) pass through otic placode (122) and second connecting rod (37).
12. according to a kind of back synchronizing linkage as claimed in claim 3, it is characterised in that: the third pin shaft (36) is two
The independent short axle of root, two third pin shafts (36) respectively pass through otic placode (122) and second connecting rod (37).
13. according to a kind of back synchronizing linkage as claimed in claim 3, it is characterised in that: the 4th pin shaft (38) is one
The both ends of whole root long axis, the 4th pin shaft (38) pass through front end and the third connecting rod (39) of support plate (112).
14. according to a kind of back synchronizing linkage as claimed in claim 3, it is characterised in that: the 4th pin shaft (38) is two
The independent short axle of root, two the 4th pin shafts (38) respectively pass through front end and the third connecting rod (39) of support plate (112).
15. according to a kind of back synchronizing linkage as claimed in claim 3, it is characterised in that: the 5th pin shaft (30) is one
The both ends of whole root long axis, the 5th pin shaft (30) pass through front end and the third connecting rod (39) of side plate (131).
16. according to a kind of back synchronizing linkage as claimed in claim 3, it is characterised in that: the 5th pin shaft (30) is two
The independent short axle of root, two the 5th pin shafts (30) respectively pass through front end and the third connecting rod (39) of side plate (131).
17. according to a kind of back synchronizing linkage as claimed in claim 3, it is characterised in that: the front end of the side plate (131) is super
Pedestal (11) and bracket (12) out.
18. according to a kind of back synchronizing linkage as claimed in claim 3, it is characterised in that: the second connecting rod (37) is short
Bar, third connecting rod (39) are stock.
19. according to a kind of back synchronizing linkage as claimed in claim 3, it is characterised in that: the centre of the bottom plate (111) is set
It is equipped with the axle sleeve (1111) for connecting gas bar.
20. according to a kind of back synchronizing linkage as claimed in claim 3, it is characterised in that: the two of the first connecting rod (34)
It is provided with the mounting plate (341) of trunnion (342) between end, trunnion (342), the mounting plate are installed on mounting plate (341)
(341) not in the same plane with second connecting rod (37) main body.
21. a kind of seat, it is characterised in that: any one including gas bar, seat frame bracket, back bracket and claim 1~20
Seat described in carries on the back synchronizing linkage, and the gas bar connects pedestal (11), seat frame bracket connecting bracket (12), back bracket
It connects wraping plate (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821556935.8U CN209219579U (en) | 2018-09-22 | 2018-09-22 | Seat back synchronizing linkage and seat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821556935.8U CN209219579U (en) | 2018-09-22 | 2018-09-22 | Seat back synchronizing linkage and seat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209219579U true CN209219579U (en) | 2019-08-09 |
Family
ID=67499013
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821556935.8U Expired - Fee Related CN209219579U (en) | 2018-09-22 | 2018-09-22 | Seat back synchronizing linkage and seat |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209219579U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2021052980A (en) * | 2019-09-27 | 2021-04-08 | コクヨ株式会社 | Chair |
-
2018
- 2018-09-22 CN CN201821556935.8U patent/CN209219579U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2021052980A (en) * | 2019-09-27 | 2021-04-08 | コクヨ株式会社 | Chair |
| JP7355576B2 (en) | 2019-09-27 | 2023-10-03 | コクヨ株式会社 | Chair |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190809 Termination date: 20210922 |
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| CF01 | Termination of patent right due to non-payment of annual fee |