CN220281177U - Four-bar linkage and car seat at regulation cushion inclination - Google Patents
Four-bar linkage and car seat at regulation cushion inclination Download PDFInfo
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- CN220281177U CN220281177U CN202321265559.8U CN202321265559U CN220281177U CN 220281177 U CN220281177 U CN 220281177U CN 202321265559 U CN202321265559 U CN 202321265559U CN 220281177 U CN220281177 U CN 220281177U
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- 238000000034 method Methods 0.000 abstract description 7
- 230000008569 process Effects 0.000 abstract description 7
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000033001 locomotion Effects 0.000 description 6
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- 230000008859 change Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
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- 230000003111 delayed effect Effects 0.000 description 1
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- 238000009434 installation Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
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Abstract
The utility model discloses a four-bar mechanism for adjusting the inclination angle of a cushion, which comprises a cushion outer frame, a cushion inner frame, a front connecting bar, a rear connecting bar and a driving mechanism, wherein the front connecting bar and the rear connecting bar are both in rotary connection with the cushion outer frame, the upper end of the front connecting bar is in rotary connection with the middle part of the cushion inner frame, the lower end of the rear connecting bar is in rotary connection with the cushion inner frame, and the driving mechanism is arranged on the cushion outer frame and is connected with the cushion inner frame. The utility model has the beneficial effects that: the cushion inner frame is connected with the upper end of the front connecting rod and the lower end of the rear connecting rod respectively, and the connecting points of the front connecting rod and the rear connecting rod on the cushion inner frame are staggered, so that the front connecting rod and the rear connecting rod can guide different positions of the cushion inner frame to move in different directions in the rotating process, the cushion inner frame can deflect, the function of independently adjusting the inclination angle of the cushion is realized, the function of increasing the deflection angle is realized, and the advantage of conveniently adjusting the angle of the cushion is achieved.
Description
Technical Field
The utility model relates to the technical field of four-bar mechanisms, in particular to a four-bar mechanism for adjusting the inclination angle of a cushion and an automobile seat.
Background
When the automobile seat is used, in order to obtain comfortable riding experience, the inclination angle of the seat cushion of the seat needs to be adjusted. Traditional car seats have the function of adjusting the backrest, but with the increasing requirements of people on the car seat riding experience, new requirements are also put forward on the adjustment of the cushion angle.
The utility model patent of China with the publication number of CN211969238U discloses a power-assisted delay response mechanism for turning over four connecting rods of an automobile seat, which comprises a cushion, a backrest, a front connecting rod, a retaining sleeve, a support and a torsion spring, wherein two ends of the cushion are respectively hinged with one end of the backrest and one end of the front connecting rod, a mandrel is fixed on the support, the retaining sleeve is fixed on the mandrel, the other end of the front connecting rod is hinged on the mandrel, the torsion spring is sleeved on the mandrel, the support is fixedly arranged on an automobile body, two ends of the torsion spring are respectively provided with a first torsion arm and a second torsion arm, the edge of the peripheral surface of the retaining sleeve is provided with a baffle extending along the axial direction of the baffle, the first torsion arm is propped against the baffle, and when the front connecting rod rotates relative to the mandrel, the front connecting rod can also be propped against the first torsion arm.
The power-assisted delayed response mechanism for the four-bar folding automobile seat has the advantages that the seat cushion is connected with the backrest, the adjustable angle of the seat cushion is small, and the problem that the angle of the seat cushion is inconvenient to adjust exists.
Disclosure of Invention
In order to solve the technical problems, the utility model aims to provide a four-bar mechanism for adjusting the inclination angle of a seat cushion, which comprises a seat cushion outer frame, a seat cushion inner frame, a front connecting bar, a rear connecting bar and a driving mechanism.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:
the utility model provides a four link mechanism at regulation cushion inclination, includes cushion frame and cushion inside casing, still includes preceding connecting rod, back connecting rod and actuating mechanism, preceding connecting rod lower extreme is rotated with the cushion frame and is connected, preceding connecting rod upper end is rotated with cushion inside casing middle part and is connected, back connecting rod upper end is rotated with the cushion frame and is connected, back connecting rod lower extreme is rotated with the cushion inside casing and is connected, actuating mechanism installs on the cushion frame and is connected with the cushion inside casing, actuating mechanism includes actuating assembly, lead screw and draws the cover, actuating assembly rotates with the cushion frame to be connected, actuating assembly's output and lead screw fixed connection, lead screw with draw set threaded connection, draw the cover to rotate with the cushion inside casing and be connected and circumference joint.
By such arrangement: the cushion inner frame is connected with the upper end of the front connecting rod and the lower end of the rear connecting rod respectively, and the connecting points of the front connecting rod and the rear connecting rod on the cushion inner frame are staggered, so that the front connecting rod and the rear connecting rod can guide different positions of the cushion inner frame to move in different directions in the rotating process, the cushion inner frame can deflect, the function of independently adjusting the inclination angle of the cushion is realized, the function of increasing the deflection angle is realized, and the advantage of conveniently adjusting the angle of the cushion is achieved.
Preferably, at least 2 rear links are provided.
By such arrangement: can play the role of increasing the structural stability between the inner frame of the cushion and the rear connecting rod.
Preferably, at least 2 of the rear connecting rods are provided with synchronizing rods, and the synchronizing rods are fixedly connected with the rear connecting rods.
By such arrangement: plays a role in improving the motion stability of the mechanism.
Preferably, the front connecting rod and the rear connecting rod are of self-symmetrical structures.
By such arrangement: plays a role in improving interchangeability and universality of parts, and is convenient to produce and install.
Preferably, the driving assembly comprises a driving piece and a speed reducer, the speed reducer is rotationally connected with the cushion outer frame, the output end of the speed reducer is fixedly connected with the screw rod, the driving piece is arranged on the speed reducer, and the output end of the driving piece is fixedly connected with the input end of the speed reducer.
By such arrangement: realize the function that drive assembly drove lead screw pivoted.
Preferably, the driving member is a motor.
By such arrangement: the function of driving the speed reducer to operate by the driving piece is realized.
Preferably, 2 front links are provided, and the 2 front links are symmetrically arranged with the cushion inner frame as a center.
By such arrangement: can play a role in improving the structural stability of the inner frame of the cushion and the front connecting rod.
Preferably, the front link is provided with a protrusion structure extending in a length direction of the front link.
By such arrangement: plays a role in improving the reliability of the front connecting rod structure.
Preferably, the front link has a length greater than that of the rear link.
By such arrangement: the deflectable angle of the seat cushion is increased.
A seat comprises the four-bar mechanism for adjusting the inclination angle of the seat cushion.
By such arrangement: through setting up the four-bar linkage who adjusts the cushion inclination in the seat, realize the individual adjustment of cushion inclination to have great adjustable angle, reached the advantage of conveniently adjusting the cushion angle.
Compared with the prior art, the utility model has the beneficial technical effects that:
1. the front connecting rod, the cushion inner frame, the rear connecting rod and the cushion outer frame are sequentially connected to form a four-connecting-rod mechanism, and the cushion inner frame is used for installing a cushion. When the driving mechanism drives the cushion inner frame to move, the cushion inner frame can change the angle along with the rotation of the front connecting rod and the rear connecting rod, and the function of independently adjusting the inclination angle of the cushion is realized. And the inner frame of the cushion deflects and can move, so that the inner frame of the cushion drives the cushion to move to a proper position, and the function of adjusting the angle and the position of the cushion simultaneously is realized. Through the combination of the inner frame and the outer frame, the outer frame mainly bears the strength requirement of the seat. And in the process of designing and manufacturing the seat, if the cushion inclination angle adjusting function is not needed, the inner frame and the front and rear connecting rods can be removed, and the modularized combination is realized.
2. The cushion inner frame is connected with the upper end of the front connecting rod and the lower end of the rear connecting rod respectively, and the connecting points of the front connecting rod and the rear connecting rod on the cushion inner frame are staggered, so that the front connecting rod and the rear connecting rod can be guided to move in different directions at different positions in the rotating process, the cushion inner frame can incline, the fixed hinging point of the front connecting rod is arranged at the lower end of the connecting rod, the fixed hinging point of the rear connecting rod is arranged at the upper end of the connecting rod, the stroke range of the cushion dip angle is enlarged, and the deflection angle can be enlarged. The advantage of conveniently adjusting the angle of the cushion is achieved.
Drawings
Fig. 1 is a schematic view of a four-bar mechanism for adjusting the inclination angle of a seat cushion according to embodiment 1 of the present utility model;
fig. 2 is a schematic diagram of a four-bar linkage mechanism for adjusting the inclination angle of a seat cushion according to embodiment 1 of the present utility model. Wherein, the technical characteristics that each reference sign indicates are as follows:
11. a cushion outer frame; 12. a cushion inner frame; 13. a front link; 14. a rear connecting rod; 15. a synchronizing lever; 16. a bump structure; 21. a driving mechanism; 22. a screw rod; 23. pulling the sleeve; 24. a driving member; 25. a speed reducer.
Detailed Description
The present utility model will be further described in detail with reference to the following examples, for the purpose of making the objects, technical solutions and advantages of the present utility model more apparent, but the scope of the present utility model is not limited to the following specific examples.
Example 1:
referring to fig. 1 and 2, a four-bar linkage mechanism for adjusting the inclination angle of a seat cushion includes a seat cushion outer frame 11, a seat cushion inner frame 12, a front link 13, a rear link 14, and a driving mechanism 21. The lower extreme of preceding connecting rod 13 rotates with cushion frame 11 to be connected, and preceding connecting rod 13 upper end rotates with cushion inside casing 12 middle part to be connected, and back connecting rod 14 upper end rotates with cushion frame 11 to be connected, and back connecting rod 14 lower extreme rotates with cushion inside casing 12 to be connected, and actuating mechanism 21 installs on cushion frame 11 and is connected with cushion inside casing 12.
The number of the rear connecting rods 14 is 2, and a synchronizing rod 15 is arranged between the 2 rear connecting rods 14, and the synchronizing rod 15 is fixedly connected with the rear connecting rods 14. The front connecting rod 13 and the rear connecting rod 14 are of self-symmetrical structures. The number of the front connecting rods 13 is 2, and the 2 front connecting rods 13 are symmetrically arranged by taking the cushion inner frame 12 as a center. The front link 13 is provided with a protrusion 16, the protrusion 16 extending in the length direction of the front link 13. The length of the front link 13 is greater than the length of the rear link 14.
The driving mechanism 21 comprises a driving assembly, a screw rod 22 and a pulling sleeve 23, the driving assembly is rotationally connected with the cushion outer frame 11, the output end of the driving assembly is fixedly connected with the screw rod 22, the screw rod 22 is in threaded connection with the pulling sleeve 23, and the pulling sleeve 23 is rotationally connected with the cushion inner frame 12 and in circumferential clamping connection. The driving assembly comprises a driving piece 24 and a speed reducer 25, the speed reducer 25 is rotationally connected with the cushion outer frame 11, the output end of the speed reducer is fixedly connected with the screw rod 22, the driving piece 24 is arranged on the speed reducer 25, the output end of the driving piece 24 is fixedly connected with the input end of the speed reducer 25, and the driving piece 24 is a motor.
This embodiment has the following advantages:
the front connecting rod 13, the cushion inner frame 12, the rear connecting rod 14 and the cushion outer frame 11 are sequentially connected to form a four-bar mechanism, and the cushion inner frame 12 is used for installing a cushion. When the driving mechanism 21 drives the cushion inner frame 12 to move, the cushion inner frame 12 can change the angle along with the rotation of the front connecting rod 13 and the rear connecting rod 14, so that the function of independently adjusting the inclination angle of the cushion is realized. And the cushion inner frame 12 can also move while deflecting, so that the cushion inner frame 12 drives the cushion to move to a proper position, and the function of adjusting the angle and the position of the cushion simultaneously is realized. Since the cushion inner frame 12 is restrained by the front link 13 and the rear link 14, the cushion inner frame 12 can be held stationary relative to the cushion outer frame 11 when the driving mechanism 21 stops driving the cushion inner frame 12. In addition, through the combination of cushion inside casing 12, cushion outside frame 11, let cushion outside frame 11 mainly bear the seat intensity requirement, and when not needing cushion inclination adjustment function, remove cushion inside casing 12, cushion outside frame 11 back connecting rod can realize, realize the modularization combination.
The cushion inner frame 12 is respectively connected with the upper end of the front connecting rod 13 and the lower end of the rear connecting rod 14, and the connecting points of the front connecting rod 13 and the rear connecting rod 14 on the cushion inner frame 12 are staggered, so that the front connecting rod 13 and the rear connecting rod 14 can guide different positions of the cushion inner frame 12 to move in different directions in the rotating process, the stroke range of the cushion dip angle adjustable is enlarged, and the deflection angle can be increased. The advantage of conveniently adjusting the angle of the cushion is achieved.
Through the arrangement of 2 rear connecting rods 14, the function of increasing the structural stability between the cushion inner frame 12 and the rear connecting rods 14 can be achieved.
Through the setting of synchronizing lever 15, guarantee that 2 back connecting rods 14 can synchronous motion, play the effect of improving the motion stationarity of mechanism.
The symmetrical structure of the rear link 14 can facilitate the exchange of parts. When different rear links 14 are provided on either side of the cushion inner frame 12, it is often necessary to turn the rear links 14 for direction-changing installation. The rear connecting rod 14 is arranged to be of a symmetrical structure, so that the mounting requirements of the rear connecting rod 14 at different positions can be met only by repeatedly producing one part, the interchangeability and the universality of the parts are improved, and the production and the mounting are convenient.
The driving assembly drives the screw rod 22 to rotate, so that the screw rod 22 drives the pull sleeve 23 in threaded connection with the screw rod to move, and the overall length of the driving mechanism 21 is changed, so that the driving mechanism 21 can drive the cushion inner frame 12 to move, and the function of driving the cushion inner frame 12 is realized.
The driving piece 24 drives the speed reducer 25 to move, the speed reducer 25 drives the screw rod 22 to rotate after adjusting the output rotating speed, and the function that the driving assembly drives the screw rod 22 to rotate is achieved.
Through the setting of 2 preceding connecting rods 13, can play the effect that improves the structural stability of cushion inside casing 12 and preceding connecting rod 13.
By providing the protrusion structure 16 on the front link 13, the load can be borne by the protrusion structure 16, and the reliability of the structure of the front link 13 can be improved. The front connecting rod 13 adopts a stamping part, and the bulge structure 16 can be formed in the stamping process of the front connecting rod 13, so that the effect of convenient production is achieved.
The length of the front connecting rod 13 is larger than that of the rear connecting rod 14, so that the movement speed of the front connecting rod 13 near one end of the cushion inner frame 12, namely the movement speed difference of the rear connecting rod 14 near one end of the cushion inner frame 12, is increased, the inclination angle change amount of the cushion inner frame 12 is increased in the movement process of the mechanism, and the deflectable angle of the cushion is increased.
Example 2:
a seat comprises a seat cushion, a backrest and the four-bar mechanism for adjusting the inclination angle of the seat cushion in the embodiment 1, wherein the seat cushion is fixedly connected with an inner frame of the seat cushion in the four-bar mechanism for adjusting the inclination angle of the seat cushion, and the backrest is fixedly connected with an outer frame of the seat cushion in the four-bar mechanism for adjusting the inclination angle of the seat cushion.
This embodiment has the following advantages:
through setting up the four-bar linkage who adjusts the cushion inclination in the seat, realize the individual adjustment of cushion inclination to have great adjustable angle, reached the advantage of conveniently adjusting the cushion angle.
Variations and modifications to the above would be obvious to persons skilled in the art to which the utility model pertains from the foregoing description and teachings. Therefore, the utility model is not limited to the specific embodiments disclosed and described above, but some modifications and changes of the utility model should be also included in the scope of the claims of the utility model. In addition, although specific terms are used in the present specification, these terms are for convenience of description only and do not constitute any limitation on the utility model.
Claims (10)
1. The utility model provides a four link mechanism at regulation cushion inclination, includes cushion frame (11) and cushion inside casing (12), its characterized in that: still include preceding connecting rod (13), back connecting rod (14) and actuating mechanism (21), preceding connecting rod (13) lower extreme and cushion frame (11) rotate to be connected, preceding connecting rod (13) upper end and cushion inside casing (12) middle part rotate to be connected, back connecting rod (14) upper end and cushion frame (11) rotate to be connected, back connecting rod (14) lower extreme and cushion inside casing (12) rotate to be connected, actuating mechanism (21) are installed on cushion frame (11) and are connected with cushion inside casing (12), actuating mechanism (21) include actuating component, lead screw (22) and draw cover (23), actuating component and cushion frame (11) rotate to be connected, actuating component's output and lead screw (22) fixed connection, lead screw (22) and draw cover (23) threaded connection, draw cover (23) and cushion inside casing (12) rotate to be connected and circumference joint.
2. The four-bar linkage for adjusting the inclination angle of a seat cushion according to claim 1, wherein: at least 2 rear connecting rods (14) are arranged.
3. The four-bar linkage for adjusting the inclination angle of a seat cushion according to claim 2, wherein: and a synchronizing rod (15) is arranged between at least 2 rear connecting rods (14), and the synchronizing rod (15) is fixedly connected with the rear connecting rods (14).
4. The four-bar linkage for adjusting the inclination angle of a seat cushion according to claim 2, wherein: the front connecting rod (13) and the rear connecting rod (14) are of self-symmetrical structures.
5. The four-bar linkage for adjusting the inclination angle of a seat cushion according to claim 1, wherein: the driving assembly comprises a driving piece (24) and a speed reducer (25), the speed reducer (25) is rotationally connected with the cushion outer frame (11) and the output end of the speed reducer is fixedly connected with the screw rod (22), the driving piece (24) is arranged on the speed reducer (25), and the output end of the driving piece (24) is fixedly connected with the input end of the speed reducer (25).
6. The four-bar linkage for adjusting the tilt angle of a seat cushion according to claim 5, wherein: the driving member (24) is a motor.
7. The four-bar linkage for adjusting the inclination angle of a seat cushion according to claim 1, wherein: the number of the front connecting rods (13) is 2, and the 2 front connecting rods (13) are symmetrically arranged by taking the cushion inner frame (12) as a center.
8. The four-bar linkage for adjusting the inclination angle of a seat cushion according to claim 1, wherein: the front connecting rod (13) is provided with a protruding structure (16), and the protruding structure (16) extends along the length direction of the front connecting rod (13).
9. The four-bar linkage for adjusting the inclination angle of a seat cushion according to claim 1, wherein: the length of the front connecting rod (13) is greater than that of the rear connecting rod (14), the lower end of the front connecting rod (13) is rotationally connected with the cushion outer frame (11), and the upper end of the rear connecting rod (14) is rotationally connected with the cushion outer frame (11).
10. A seat comprising the four-bar linkage for adjusting the inclination angle of a seat cushion according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321265559.8U CN220281177U (en) | 2023-05-24 | 2023-05-24 | Four-bar linkage and car seat at regulation cushion inclination |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321265559.8U CN220281177U (en) | 2023-05-24 | 2023-05-24 | Four-bar linkage and car seat at regulation cushion inclination |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220281177U true CN220281177U (en) | 2024-01-02 |
Family
ID=89337245
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321265559.8U Active CN220281177U (en) | 2023-05-24 | 2023-05-24 | Four-bar linkage and car seat at regulation cushion inclination |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220281177U (en) |
-
2023
- 2023-05-24 CN CN202321265559.8U patent/CN220281177U/en active Active
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