CN208491376U - A kind of seat back angle fine motion control mechanism - Google Patents
A kind of seat back angle fine motion control mechanism Download PDFInfo
- Publication number
- CN208491376U CN208491376U CN201721919693.XU CN201721919693U CN208491376U CN 208491376 U CN208491376 U CN 208491376U CN 201721919693 U CN201721919693 U CN 201721919693U CN 208491376 U CN208491376 U CN 208491376U
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- pin
- bracket
- bracing wire
- torsional spring
- chassis
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- Chairs For Special Purposes, Such As Reclining Chairs (AREA)
Abstract
A kind of seat back angle fine motion control mechanism comprising chassis, bracket, fixed frame and positioning components；The fixed frame is installed in chassis, and described bracket one end is installed on backrest, and the other end is installed on chassis, and the side of bracket is equipped with several positioning holes；The positioning components include pin, torsional spring, pressure spring and bracing wire, and torsional spring both ends are connected to bracing wire and pin, and pin is installed on chassis, and compression spring sleeve is set in bracing wire；When adjusting, bracing wire is tensed, torsional spring rotates and pull pin, and pin is caught on bracket in corresponding positioning hole, to realize backrest lock function；When unclamping bracing wire, torsional spring is by the effect of pressure spring, and torsional spring, which rotates and pin is driven to move backward, exits bracket positioning hole, so as to freely adjust backrest angle.The utility model only needs light stress bracing wire, can be driven by torsional spring, realizes that the angle of backrest controls to adjust function, easy to operate.In addition, the overall structure of the utility model is simple, it is easy to assembly, and product stability is strong.
Description
Technical field
The utility model relates to a kind of seat more particularly to a kind of seat back angle fine motion control mechanisms.
Background technique
In the life of modern people, all too busy to get away chair is either rested, works or entertained.As people live
Horizontal increasingly raising, people are also higher and higher to the comfort level requirement of chair, for the design that seat comfort degree can be improved
It is more and more, and seat back angle can be adjusted to one of more designs of storage.The existing seat with adjustable backrest angle leads to
Backrest regulating switch is arranged in the lower right side of normal seat, and when adjusting tilting angle of backrest, it is past simultaneously need to firmly to move regulating switch
It is pressed against back afterwards, until backrest inclination angle reaches demand position, unclamps again regulating switch.However, this kind of regulating device is not only tied
Structure is complicated, is not easy to assemble, and operation is more inconvenient, and stability is poor.
Utility model content
Based on this, it is necessary to aiming at the shortcomings in the prior art, provide a kind of seat back angle fine motion control mechanism.
The technical solution of the utility model are as follows:
A kind of seat back angle fine motion control mechanism, is installed on seat, and the seat includes seat cushion and backrest, described
Seat back angle fine motion control mechanism includes chassis, bracket, fixed frame and positioning components；The chassis is installed on seat cushion bottom
Portion, described bracket one end are fixedly arranged on by back, and the other end is articulated on chassis, and the side of bracket is equipped with several positioning holes；Institute
It states fixed frame to be installed on chassis, fixed frame has extended downwardly mounting post on bottom surface；The positioning components include pin, torsional spring,
Pressure spring and bracing wire, the pin are worn on the chassis of bracket positioning hole side；The torsion spring set is set in the mounting post of fixed frame
And can be rotated freely around mounting post, the upper and lower ends of torsional spring are respectively equipped with the first installation end and the second installation end, first peace
Dress end is arranged on pin, and the second installation end is connected in bracing wire, and the other end of the wiring is arranged on fixed frame and extends
Out outside chassis, the compression spring sleeve is set in the bracing wire between torsional spring and fixed frame；
When adjusting, bracing wire is tensed, torsional spring stress rotates and pulls pin mobile, and pin is caught in corresponding positioning hole on bracket
It is interior bracket to be locked；Loosen bracing wire, pressure spring rebound pushes torsional spring rotation, and torsional spring pushes pin to move back and exit the tune of bracket
Position hole, at this point, bracket can carry out free adjusting in no restrained condition.
Further, the chassis two sides are respectively equipped with side plate, and wherein side plate is equipped with mounting hole, the pin installing
In in mounting hole；The both ends of the bracket are respectively pivoted on the lateral surface of corresponding tray side panel.
Further, several positioning holes in the side face form a line, and column positioning hole direction from up to down
Backrest direction is inclined to set.
Further, the fixed frame is installed on the chassis between both side plate, and the fixed frame is equipped with limiting slot；It is described
The middle part of bracing wire is equipped with retention bead, and the retention bead is arranged in limiting slot.
Further, the pin on the inside of the chassis is equipped with a card hole, and the card hole is set on pin top surface；It is described
First installation end of torsional spring is arranged in the card hole.
Further, the medial end of the bracing wire is equipped with fixture block, and the fixture block is arranged in the second installation of the torsional spring
On end.
Further, the fixture block is arranged on the second installation end of the torsional spring, and the retention bead is arranged in described
On limiting section in limiting slot；The handle includes locking shelves and freely adjusts position.
In conclusion the seat back angle fine motion control mechanism of the utility model will be by that will be arranged torsional spring, bracing wire, pin
And pressure spring, torsional spring are connected to bracing wire and pin；When tensing bracing wire, torsional spring rotates and pulls pin, and pin is caught in the positioning of bracket
In hole, to realize backrest lock function；When unclamping bracing wire, by the effect of pressure spring, torsional spring rotates and drives pin backward torsional spring
Bracket positioning hole is exited in movement, to realize that backrest without restrained condition, can be adjusted the angle freely.The backrest angle of the utility model
Control mechanism only needs light stress pulling wire handle, and handle can be driven by torsional spring, realizes that backrest angle controls to adjust function；Operation
Simplicity, structure are simple and easy to assembly, and product stability is strong.It is practical, there is stronger dissemination.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of seat back angle fine motion control mechanism of utility model；
Fig. 2 is a kind of exploded view of seat back angle fine motion control mechanism shown in Fig. 1；
Fig. 3 is the fixed frame of seat and the structural schematic diagram of rackwork shown in Fig. 2；
Fig. 4 is the positioning status diagram of bracket.
Specific embodiment
In order to which the objects, technical solutions and advantages of utility model are more clearly understood, with reference to the accompanying drawings and embodiments,
Utility model is further elaborated.
As shown in Figures 1 to 4, the utility model provides a kind of seat back angle fine motion control mechanism, is used to adjust
The tilt angle of backrest.The seat includes seat cushion and backrest, and the seat back angle fine motion control mechanism includes bottom
Disk 10, bracket 20, fixed frame 30 and positioning components.The chassis 10 is installed on seat cushion bottom, and the fixed frame 30 is installed on bottom
In disk 10.Described 20 one end of bracket is connected to backrest, and the other end is installed on chassis 10, and bracket 20 can freely be revolved around chassis 10
Turn.The positioning components are used for the tilt angle relative to chassis 10 of bracket.
10 two sides of chassis are respectively equipped with side plate 11, and wherein side plate 11 is equipped with inside and outside perforative mounting hole 12.Institute
It states bracket 20 to be arranged in C font, the both ends of bracket 20 are respectively pivoted on the lateral surface of corresponding 10 side plate 11 of chassis.Bracket 20
Side is equipped with several positioning holes 21, and several positioning holes 21 form a line, and the column positioning hole 21 is from up to down into backrest direction
Inclination extends.The fixed frame 30 is installed on the chassis 10 between both side plate 11, and the bottom surface of fixed frame 30 is equipped with a mounting post
31, a limiting slot 32 is additionally provided on fixed frame 30, a limiting section is equipped in the limiting slot 32 (figure is not marked).
The positioning components include torsional spring 41, pressure spring 42, bracing wire 43 and pin 44, and the torsional spring 41 is sheathed on fixed frame 30
In the mounting post 31 of bottom surface, torsional spring 41 can be rotated freely around mounting post 31.The top and bottom end of the torsional spring 41 each extend over out
First installation end 411 and the second installation end 412, first installation end 411 are arranged on the pin 44, second installation
End 412 is arranged in the bracing wire 43.The pin 44 is arranged in the wherein positioning on 10 mounting hole 12 of chassis and bracket 20
In hole 21.The inside top surface of pin 44 is equipped with a card hole 441, and first installation end 411 is arranged in the mounting hole 12.
The bracing wire 43 is equipped with fixture block 431, handle (not shown) and retention bead 432, the fixture block 431 and handle point
It is not set to the both ends of bracing wire 43, the retention bead 432 is set to the middle part of bracing wire 43.The fixture block 431 is arranged in described
On second installation end 412 of torsional spring 41, the retention bead 432 is arranged in the limiting slot 32, and the limiting section is set to
It between second installation end 412 and retention bead 432, is limited with being risen to limit convex 432, the rebound of bracing wire 43 is avoided to loosen.Institute
Stating handle may be disposed at the positions such as the seat cushion outside of seat, handrail, and handle can be locked when tensing bracing wire, make bracing wire always
In tension, correspondingly, bracing wire can also be constantly in releasing orientation.
In use, bracing wire 43 is tensed and locked by handle, pressure spring 42 is compressed, and bracing wire 43 drives torsional spring 41 to rotate,
First installation end 411 of torsional spring 41 drives pin 44 mobile to 21 direction of positioning hole of bracket 20, and pin 44 is arranged in corresponding
In positioning hole 21, to realize the lock function of backrest.The bracing wire of tension is unclamped, the pressure spring 42 is sprung back, torsional spring 41 by
The rebound effect of pressure spring 42 reversely rotates, and the first installation end 411 drives pin 44 to exit back in the positioning hole 21 of bracket 20,
At this point, backrest is free state；User arrives maximum inclination in use, backrest is naturally swung back under the action of human bady gravitational
Position.Backrest in a free state, optimum inclination angle will be depressed by behind, then bracing wire 43 is tensed and is locked, that is, realized
The adjusting of backrest angle.
In conclusion the seat back angle fine motion control mechanism of the utility model will be by that will be arranged torsional spring, bracing wire, pin
And pressure spring, torsional spring are connected to bracing wire and pin；When tensing bracing wire, torsional spring rotates and pulls pin, and pin is caught in the positioning of bracket
In hole, to realize backrest lock function；When unclamping bracing wire, by the effect of pressure spring, torsional spring rotates and drives pin backward torsional spring
Bracket positioning hole is exited in movement, to realize that backrest without restrained condition, can be adjusted the angle freely.The backrest angle of the utility model
Control mechanism only needs light stress pulling wire handle, and handle can be driven by torsional spring, realizes that backrest angle controls to adjust function；Operation
Simplicity, structure are simple and easy to assembly, and product stability is strong.It is practical, there is stronger dissemination.
A kind of embodiment of utility model above described embodiment only expresses, the description thereof is more specific and detailed, but
It cannot be understood as the limitations to utility model patent range.It should be pointed out that for the ordinary skill of this field
For personnel, under the premise of not departing from utility model design, various modifications and improvements can be made, these belong to practical
Novel protection scope.Therefore, the scope of protection shall be subject to the appended claims for utility model patent.
Claims (6)
1. a kind of seat back angle fine motion control mechanism, is installed on seat, the seat includes seat cushion and backrest, feature
Be: the seat back angle fine motion control mechanism includes chassis, bracket, fixed frame and positioning components；The chassis installation
In seat cushion bottom, described bracket one end is fixedly arranged on by back, and the other end is articulated on chassis, and the side of bracket is equipped with several tune
Position hole；The fixed frame is installed on chassis, and fixed frame has extended downwardly mounting post on bottom surface；The positioning components include pin
Nail, torsional spring, pressure spring and bracing wire, the pin are worn on the chassis of bracket positioning hole side；The torsion spring set is set to fixed frame
It can rotate freely in mounting post and around mounting post, the upper and lower ends of torsional spring are respectively equipped with the first installation end and the second installation end, institute
It states the first installation end to be arranged on pin, the second installation end is connected in bracing wire, and the other end of the bracing wire is arranged in fixed frame
It goes up and extends outside chassis, the compression spring sleeve is set in the bracing wire between torsional spring and fixed frame；
When adjusting, tense bracing wire, torsional spring stress rotate and pulls pin mobile, pin be caught in corresponding positioning hole on bracket it is interior with
Bracket is locked；Loosen bracing wire, pressure spring rebound pushes torsional spring rotation, and torsional spring pushes pin to move back and exit the positioning of bracket
Hole, at this point, bracket is in no restrained condition.
2. a kind of seat back angle fine motion control mechanism as described in claim 1, it is characterised in that: the chassis two sides point
Not She You side plate, wherein side plate is equipped with mounting hole, and the pin is installed in mounting hole；Distinguish pivot in the both ends of the bracket
It is connected on the lateral surface of corresponding tray side panel.
3. a kind of seat back angle fine motion control mechanism as described in claim 1, it is characterised in that: in the side face
Several positioning holes form a line, and the column positioning hole is inclined to set towards backrest direction from up to down.
4. a kind of seat back angle fine motion control mechanism as claimed in claim 2, it is characterised in that: the fixed frame installation
On chassis between both side plate, the fixed frame is equipped with limiting slot；The middle part of the bracing wire is equipped with retention bead, the limit
Protrusion is arranged in limiting slot.
5. a kind of seat back angle fine motion control mechanism as described in claim 1, it is characterised in that: on the inside of the chassis
Pin is equipped with a card hole, and the card hole is set on pin top surface；First installation end of the torsional spring is arranged in the card hole
It is interior.
6. a kind of seat back angle fine motion control mechanism as described in claim 1, it is characterised in that: the both ends of the bracing wire
Part is equipped with fixture block, and the fixture block is arranged on the second installation end of the torsional spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721919693.XU CN208491376U (en) | 2017-12-28 | 2017-12-28 | A kind of seat back angle fine motion control mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721919693.XU CN208491376U (en) | 2017-12-28 | 2017-12-28 | A kind of seat back angle fine motion control mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208491376U true CN208491376U (en) | 2019-02-15 |
Family
ID=65302437
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721919693.XU Active CN208491376U (en) | 2017-12-28 | 2017-12-28 | A kind of seat back angle fine motion control mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208491376U (en) |
-
2017
- 2017-12-28 CN CN201721919693.XU patent/CN208491376U/en active Active
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