CN107136798B - Seat back regulator and balancing device thereof - Google Patents
Seat back regulator and balancing device thereof Download PDFInfo
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- CN107136798B CN107136798B CN201710319020.9A CN201710319020A CN107136798B CN 107136798 B CN107136798 B CN 107136798B CN 201710319020 A CN201710319020 A CN 201710319020A CN 107136798 B CN107136798 B CN 107136798B
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- turntable
- seat back
- transmission shaft
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C7/00—Parts, details, or accessories of chairs or stools
- A47C7/36—Support for the head or the back
- A47C7/40—Support for the head or the back for the back
- A47C7/46—Support for the head or the back for the back with special, e.g. adjustable, lumbar region support profile; "Ackerblom" profile chairs
- A47C7/462—Support for the head or the back for the back with special, e.g. adjustable, lumbar region support profile; "Ackerblom" profile chairs adjustable by mechanical means
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Seats For Vehicles (AREA)
- Chair Legs, Seat Parts, And Backrests (AREA)
- Flexible Shafts (AREA)
- Rotary Pumps (AREA)
Abstract
The invention provides a seat back regulator and a balancing device thereof. The inner end of the spiral elastic piece is connected to the first rotating device, and the outer end of the spiral elastic piece is connected to the second rotating device. One end of the transmission device is connected to the first rotating device and/or the second rotating device; the other end of which is connected to a seat back that rotates in a vertical plane. The stabilizing device is used for installing the first rotating device and the second rotating device.
Description
Technical Field
The present invention relates to a seat back adjuster and a balancing device thereof.
Background
The seat back regulator is one kind of electric regulator for regulating the angle of seat back, and is applied to automobile seat, office seat, etc. and has small motor as driving unit, rigid locking unit to lock the seat back and no energy storing mechanism. In the rotation process of the seat backrest in the vertical plane, the gravity center of the seat backrest can be changed, and the stability of the seat backrest is poor.
When the gravity center of the seat backrest moves from a high position to a low position, the gravitational potential energy of the seat backrest is completely lost and cannot be effectively utilized; in the process of changing the gravity center of the seat back, the kinetic energy of the seat back is completely driven by a motor, and more electric quantity is needed to be consumed. On the other hand, in the process of rotating the seat back, a large pressure is formed on the base of the seat back rotating device, the components are easy to damage, and in order to ensure the stability of the rotation of the seat back, the base support and the fastening piece of the backrest angle adjusting device are required to be made of excellent rigid materials, so that the component cost is high.
Disclosure of Invention
The invention aims to provide a balancing device to solve the technical problems of high energy consumption, complex connecting structure, poor stability and the like of the existing seat back regulator.
In order to solve the technical problems, the invention provides a balancing device of a seat back regulator, which comprises a first rotating device; the second rotating device is arranged outside the first rotating device; at least one spiral elastic member having an inner end connected to the first rotating means and an outer end connected to the second rotating means; and a transmission device, one end of which is connected to the first rotation device and/or the second rotation device; the other end of the chair is connected to the backrest; wherein the first rotating device comprises a first turntable; a limit sleeve protruding from the middle of the surface of the first rotating disc, which is close to one side of the spiral elastic piece; the inner end clamping groove is formed in the outer side wall of the limiting sleeve, and the inner end of the spiral elastic piece is clamped to the inner end clamping groove; the second rotating device comprises a shell, a first rotating disc and a second rotating disc, wherein the shell comprises a second rotating disc and an annular sleeve; the annular sleeve is sleeved outside the spiral elastic piece, and a pipe orifice at one side of the annular sleeve is fixedly connected to the edge of the second turntable; and an outer end bayonet penetrating through the outer side wall of the annular sleeve, wherein the outer end of the spiral elastic piece is clamped to the outer end bayonet.
Further, in various embodiments, the first rotating device further includes a first rotor stop protruding from a surface of the first rotor on a side away from the spiral spring; and the limiting hole penetrates through the center of the limiting sleeve and the first turntable, and two limiting stops protruding inwards are arranged in the limiting hole.
Further, in various embodiments, the second rotating device further includes a second turntable stop protruding from a surface of the second turntable on a side away from the annular sleeve; the second turntable through hole penetrates through the center of the second turntable; and the first arc sliding hole penetrates through the second turntable, and the circle center of the arc of the first arc sliding hole is consistent with the circle center of the through hole of the second turntable.
Further, in various embodiments, the transmission includes a third turntable tangential to the second turntable inner surface; a first transmission shaft protruding from the center of the third turntable, penetrating through the second turntable through hole and fixedly connected to the seat back; the third turntable stop block protrudes out of the surface of the third turntable and is clamped into the first arc-shaped slide hole; the third turntable stop block and the first transmission shaft are positioned on the same side close to the second turntable.
Further, in various embodiments, the transmission device further includes a latch protruding from the center of the third turntable and located at a side far from the second turntable; the clamping block is clamped into the limiting hole; and the second transmission shaft protrudes out of the surface of the clamping block, and the axis of the second transmission shaft and the axis of the first transmission shaft are positioned on the same straight line.
Further, in various embodiments, the stabilization device comprises a horizontal base; the first supporting plate and the second supporting plate are vertically fixed at the left end and the right end of the horizontal base; the first support plate and the second support plate are oppositely arranged and parallel to each other.
Further, in different embodiments, a first transmission shaft mounting hole is arranged at the center of the first supporting plate and sleeved outside the first transmission shaft; the lower part of the first supporting plate is provided with a second arc-shaped sliding hole penetrating through the first supporting plate, and the circle center of the arc is consistent with the circle center of the first transmission shaft mounting hole; a second transmission shaft mounting hole is formed in the center of the second supporting plate and sleeved outside the second transmission shaft;
further, in different embodiments, an arc-shaped bayonet is provided at the edge of the upper portion of the second support plate, and the first turntable stop block is clamped into the arc-shaped bayonet.
Further, in various embodiments, the coiled spring comprises, but is not limited to, a flat spiral spring or torsion spring; the cross-sectional shape of the spiral spring includes, but is not limited to, rectangular, circular, and oval; when the number of the spiral elastic pieces is more than two, the winding directions of all the spiral elastic pieces are the same; when more than two spiral elastic pieces are deformed at the same time, the directions of restoring torque generated by all the spiral elastic pieces are the same.
In order to solve the technical problem, the invention also provides a seat back regulator, which comprises the balancing device.
The invention provides a seat back regulator and a seat back regulator balancing device, which ensure the moment balance of a system only by one or a group of same-direction elastic pieces when the seat back reciprocates in two rotation directions in a vertical plane, so that the operation is simpler and more convenient, the load of a driving motor can be effectively lightened, the energy consumption is reduced, and the production and maintenance cost of equipment is reduced. In addition, the balance device of the seat back regulator can effectively simplify the connecting structure, save space, improve the reliability and stability of the system, prolong the service life and improve the working efficiency.
Drawings
FIG. 1 is a schematic view of a structure of an embodiment of the present invention in a use state;
FIG. 2 is a schematic diagram of the overall structure of an embodiment of the present invention;
FIG. 3 is an exploded view of an embodiment of the present invention;
FIG. 4 is a schematic diagram of a first rotary device according to an embodiment of the present invention;
FIG. 5 is a schematic diagram of a second rotary device according to an embodiment of the present invention;
FIG. 6 is a schematic view of a spiral spring according to an embodiment of the present invention;
FIG. 7 is a schematic diagram of a transmission device according to an embodiment of the present invention;
FIG. 8 is a schematic structural view of a stabilization device according to an embodiment of the present invention;
fig. 9 is a schematic view showing the position of a seat back according to an embodiment of the present invention.
The components in the figures are numbered as follows:
100 first rotating means, 200 second rotating means; 300 spiral spring, 400 drive;
500 stabilizing device, 600 seat back, 600 driving device;
101 a first turntable, 102 a limiting sleeve and 103 an inner end clamping groove;
201 a shell, 202 a second turntable, 203 an annular sleeve and 204 an outer bayonet;
a spring piece 301, a spring inner end 302 and a spring outer end 303;
401 third turntable, 402 first transmission shaft, 403 fixture block, 404 second transmission shaft;
501 a first support plate, 502 a second support plate, 503 a horizontal base;
reference position of the seat back 601, first target position of the seat back 602, second target position of the seat back 603;
1021 limit holes, 1022 limit stops, 1023 limit stops;
2021 second turntable block, 2022 second turntable through hole, 2023 first arc slide hole;
4011 a third turntable stop;
5011 a first transmission shaft mounting hole, 5012 a second arc slide hole; 5021 second transmission shaft mounting hole, 5022 arc bayonet socket.
Detailed Description
The following description of the preferred embodiments of the present invention, which will be described in sufficient detail to enable those skilled in the art to practice the invention, is provided with a more complete description of the invention, and is provided with additional clarity and ease of understanding. The present invention may be embodied in many different forms of embodiments and the scope of the present invention is not limited to only the embodiments described herein.
In the drawings, like structural elements are referred to by like reference numerals and like structural or functional elements are referred to by like reference numerals throughout. The dimensions and thicknesses of each of the components shown in the drawings are arbitrarily shown, and the present invention is not limited to the dimensions and thicknesses of each of the components.
Directional terms, such as up, down, front, rear, interior, exterior, side, top, bottom, end, clockwise, counterclockwise, etc., are used herein with respect to the drawings and merely to illustrate and describe the present invention and are not intended to limit the scope of the present invention.
When some element is referred to as being "on" another element, it can be directly on the other element; there may also be an intermediate part, which is placed on the intermediate part and which is placed on another part. When an element is referred to as being "mounted to" or "connected to" another element, it can be directly "mounted to" or "connected to" the other element or be indirectly "mounted to" or "connected to" the other element via an intervening element.
As shown in fig. 1 to 9, the embodiment provides a seat back regulator including a seat back regulator balancing device therein, the seat back 600 is reciprocally rotatable in a vertical direction, and the driving device 700 is a small-sized driving motor.
The seat back adjuster balancing device includes a first rotational device 100, a second rotational device 200, at least one coiled spring 300, a transmission 400, a stabilizing device 500, a seat back 600, and a driving device 700. One end of the transmission 400 is connected to the first rotating device 100 and/or the second rotating device 200, and the other end thereof is connected to an external seat back 600, and the seat back 600 can be reciprocally rotated within a certain angle range.
The plane of the rotational path of the seat back 600 is perpendicular to the line of the center axis of the spiral spring 300. In this embodiment, the center axis of the spiral elastic member (spiral spring) is disposed horizontally, and the plane in which the rotation path of the seat back is located is a vertical plane. The bidirectional balancing device of the present invention is used to balance the weight of the seat back 600 when the seat back 600 rotates in a vertical plane.
The seat back 600 may be rotated in a clockwise needle direction or a counterclockwise direction in a vertical plane by a driving device 700 (e.g., a driving motor). Herein, the direction of the line of sight in the clockwise direction is determined to be the direction facing the seat back 600, and the entire rotation process of the seat back 600 can be seen. Since the seat back 600 is fixedly connected to the transmission device 400, when the seat back 600 rotates, the transmission device 400 is driven to rotate in the same direction, and thus the first rotating device 100 or the second rotating device 200 is driven to rotate.
The first rotating device 100 and the second rotating device 200 are both mounted to the stabilizing device 500; the second rotating device 200 is disposed outside the first rotating device 100, and the two rotating devices can rotate independently without interfering with each other. The spiral elastic member 300 has a spiral shape, an inner end of which is connected to the first rotating device 100, and an outer end of which is connected to the second rotating device 200, and both ends of the spiral elastic member 300 are subjected to a certain pressure to be deformed when either rotating device rotates and the other rotating device remains stationary.
When the first rotating device 100 is rotated by the transmission device 400, the second rotating device 200 is kept still, the spiral elastic member 300 is deformed, and a first restoring torque is generated; when the second rotating device 200 is rotated by the transmission device 400, the first rotating device 100 is kept still, the spiral elastic member 300 is deformed, and a second restoring torque is generated; the first restoring torque is opposite to the second restoring torque.
When the scroll-like elastic member is stretched or contracted, a certain restoring moment is generated to promote the scroll-like elastic member to restore its original shape. When the spiral elastic piece is opened, a moment of inward contraction is generated; when the scroll-like elastic member is forced to be contracted, an outward-opening moment is generated; in both cases, the direction of the restoring moment generated by the spiral spring is reversed.
As shown in fig. 3 to 4, the first rotating device 100 comprises a first rotary disc 101 and a limit sleeve 102, wherein the limit sleeve 102 protrudes from the middle of the surface of the first rotary disc 101, which is close to one side of the spiral elastic member 300; the outer side wall of the limit sleeve 102 is provided with an inner end clamping groove 103, and the inner end 302 of the spring of the spiral elastic piece 300 is clamped to the inner end clamping groove 103.
The first rotating device 100 further includes a first rotating disc stop 1011 and a limiting hole 1021, wherein the first rotating disc stop 1011 protrudes from the surface of the first rotating disc 101 at the side far away from the spiral elastic member 300; the limiting hole 1021 penetrates through the center of the limiting sleeve 102 and the first rotary disc 101, and two limiting blocks 1022 and 1023 protruding inwards are arranged in the limiting hole 1021.
In this embodiment, the cross-section main body of the limiting hole 1021 is circular, and its diameter is slightly larger than the length of the clamping block 403. The cross sections of the limit stops 1022 and 1023 are right-angle sectors, the sector circle centers of the two limit stops 1022 and 1023 are oppositely arranged, the circle center of the cross section of the limit hole 1021 is positioned on the connecting line of the sector circle centers of the two limit stops 1022 and 1023, the sector circle centers of the cross sections of the two limit stops 1022 and 1023 protrude to the middle part of the limit hole 1021, and the rotation angle of the clamping block 403 in the limit hole 1021 is 90 degrees.
As shown in fig. 3 and 5, the second rotating device 200 includes a housing 201, and the housing 201 includes a second turntable 202 and an annular sleeve 203 integrally provided; the annular sleeve 203 is sleeved outside the spiral elastic piece 300, and a pipe orifice on one side of the annular sleeve 203 is fixedly connected to the edge of the second turntable 202; the outer side wall of the annular sleeve 203 is provided with an outer end bayonet 204, and the spring outer end 303 of the spiral elastic member 300 is engaged with the outer end bayonet 204.
The second rotating device 200 further comprises a second turntable stop 2021 protruding from a surface of the second turntable 202 on a side away from the annular sleeve 203; a second turntable through hole 2022 is arranged at the center of the second turntable 202; the second turntable 202 is provided with a first arc slide hole 2023, the upper and lower corresponding sides of the first arc slide hole 2023 are arc lines, the circle centers of the two arc lines are coincident with the circle center of the second turntable through hole 2022, and the corresponding central angle of the two arc lines is 90 degrees.
As shown in fig. 3 and 6, the coiled spring 300 is disposed outside the stop collar 102, preferably a flat spiral spring or torsion spring, and includes a coiled spring plate 301, with the spring plate 301 being integrally disposed between two parallel flat surfaces. The spring piece 301 has spring inner ends 302 and spring outer ends 303, respectively, the spring inner ends 302 are engaged with the inner end locking grooves 103 of the first rotating device 100, and the spring outer ends 303 are engaged with the outer end bayonets 204 of the second rotating device 200. The cross-sectional shape of the spiral spring 300, specifically, the cross-sectional shape of the leaf spring, includes, but is not limited to, rectangular, circular, or oval. The leaf spring 301 of a conventional scroll spring is generally in the form of a sheet having a rectangular cross-sectional shape with a ratio of length to width of greater than 10. The common torsion spring is generally formed by twisting a thinner metal wire into a spiral structure, and the cross section of the common torsion spring is mostly round or oval for processing convenience.
In this embodiment, when the number of the spiral elastic members 300 is more than two, the directions of all the spiral elastic members 300 are the same, specifically, the directions of the spring pieces 301 of all the spiral elastic members 300 are the same. When two or more spiral elastic members 300 are deformed at the same time, the direction of the restoring torque generated by all the spiral elastic members 300 is the same. Because each spiral elastic member 300 can generate two opposite restoring moments under the condition of different stress directions, the bidirectional buffering and energy storage effects can be realized by only one spiral spring or a group of spiral springs in the invention. Compared with the technical scheme that two sets of spiral springs with opposite winding directions are simultaneously arranged in the prior art, the spiral spring structure has the advantages of simplifying the structure, reducing the volume, effectively reducing the production cost and saving the space.
The positions of the inner ends 302 of the springs of all the spiral elastic elements 300 correspond to each other and can be arranged on the same straight line; all of the outer ends 303 of the springs of the spiral spring 300 may be positioned in a common line. When the number of the spiral elastic pieces 300 is more than two, a spacer is arranged between two adjacent spiral elastic pieces 300, and the spacer is made of elastic wear-resistant materials (such as rubber), so that the spiral elastic pieces 300 are prevented from colliding with other spiral elastic pieces 300 or other components in the deformation process or recovery process, and the deformation energy storage effect is prevented from being influenced.
As shown in fig. 3 and 7, the transmission device 400 comprises a third rotary disc 401 and a first transmission shaft 402, and the third rotary disc 401 is tangential to the inner surface of the second rotary disc 202; the first transmission shaft 402 protrudes at the center of the third turntable 401, passes through the second turntable through hole 2022, and is fixedly connected to the seat back 600 (seat back).
A protruding third turntable stop block 4011 is arranged on one side surface of the third turntable 401, and the third turntable stop block 4011 is clamped into the first arc-shaped slide hole 2023; third turntable stop 4011 is located on the same side of second turntable 202 as first drive shaft 402. The clamping block 403 protrudes from the center of the third turntable 401 and is positioned at one side far away from the second turntable 202; the clamping block 403 is clamped into the limiting hole 1021, and the rotation angle of the clamping block 403 in the limiting hole 1021 is 90 degrees. The second transmission shaft 404 protrudes from the surface of the clamping block 403, and the axis of the second transmission shaft and the axis of the first transmission shaft 402 are located on the same straight line. In this embodiment, the clamping block 403 is a cuboid, preferably a strip-shaped clamping block.
As shown in fig. 3 and 8, the stabilizing device 500 includes a first support plate 501, a second support plate 502 and a horizontal base 503, wherein the first support plate 501 and the second support plate 502 are vertically fixed at the left and right ends of the horizontal base 503, and the first support plate 501 and the second support plate 502 are disposed opposite to each other and parallel to each other.
The horizontal base 503 is preferably a rectangular base, the horizontal base 503 is provided with a plurality of mounting screw holes, and the horizontal base 503 can be fixedly mounted on the ground or other bases by using fasteners, so that the system formed by the mechanical arm and the balancing device is stable enough and cannot deviate or shake.
A first transmission shaft mounting hole 5011 is arranged in the center of the first supporting plate 501 and sleeved outside the first transmission shaft 402; the lower part of the first supporting plate 501 is provided with a second arc sliding hole 5012 which penetrates through the first supporting plate 501, and the arc circle center of the second arc sliding hole is consistent with the circle center of the first transmission shaft installation hole 5011.
A second transmission shaft mounting hole 5021 is arranged at the center of the second supporting plate 502 and sleeved outside the second transmission shaft 404; an arc bayonet 5022 is arranged at the upper edge of the second supporting plate 502, and the first rotating disc stop 1011 is clamped into the arc bayonet 5022.
In this embodiment, the spiral elastic member 300 is sleeved outside the limiting sleeve 102, the clamping block 403 is clamped into the limiting hole 1021, and the second transmission shaft 404 is inserted into the second transmission shaft mounting hole 5021. The first transmission shaft 402 passes through the second dial through hole 2022, the first transmission shaft mounting hole 5012, and is fixedly connected to the seat back 600 (seat back). The central axis of the second transmission shaft mounting hole 5021 is positioned on the same straight line, namely the straight line where the axes of the second transmission shaft 404 and the first transmission shaft 402 are positioned.
As shown in fig. 9, in the present embodiment, during rotation of the seat backs 600 (seat backs) on the vertical plane, the highest center of gravity of the seat backs 600 on the running track thereof is set as a reference position 601, and the lowest center of gravity of the two seat backs 600 on the running track thereof is set as a first target position 602 and a second target position 603. In this embodiment, the rotation angle of the reference position of the seat back 600 is set to 0 degrees, and the rotation angle range thereof is 0 to 90 degrees of clockwise rotation and 0 to 90 degrees of counterclockwise rotation. The entire rotation process of the extra seat back 600 (seat back) according to the present embodiment can be seen by determining that the clockwise line of sight direction is the direction facing the first support plate 501.
As shown in fig. 9, when the seat back 600 is located at the reference position 601, the first rotating device 100 and the second rotating device 200 are both kept stationary, the spiral elastic member 300 is kept as it is, the clamping block 403 is vertically disposed, and the third turntable stop 4011 is engaged with one end of the first arc-shaped sliding hole 2023.
When the seat back 600 needs to rotate counterclockwise from the reference position 601 to the first target position 602, the center of gravity of the seat back 600 moves from the high position to the low position, the driving device 600 (motor) drives the seat back 600 (seat back) to rotate counterclockwise, and the transmission 400 is also driven to rotate counterclockwise. At this time, the third turntable block 4011 pushes the housing 201 to drive the second rotating device 200 to rotate counterclockwise, and when the seat back 600 reaches the first target position 602, the rotation angle is 90 degrees. During this process, the second turntable block 2021 slides within the second arcuate slide aperture 5013, ensuring that the housing 201 can rotate in a vertical plane. During this process, the latch 403 is free to rotate in the limiting hole 1021, and the first rotating device 100 is not subjected to any pushing force and is completely stationary. Since the inner end of the spiral elastic member 300 is fixedly coupled to the first rotating device 100 and the outer end thereof is fixedly coupled to the second rotating device 200, the spiral elastic member 300 is deformed to be curled, and the gravitational potential energy of the seat back 600 is converted into the elastic potential energy of the spiral elastic member 300.
When the seat back 600 needs to rotate clockwise from the first target position 602 back to the reference position 601, the center of gravity of the seat back 600 moves from the low position to the high position, the driving device 600 (motor) drives the seat back 600 (seat back) to rotate clockwise, and the transmission device 400 is also driven to rotate clockwise. When the seat back 600 returns to the reference position 601, the second rotating device 200 rotates clockwise by 90 degrees, the spiral elastic member 300 gradually returns to its original shape, and the elastic potential energy of the spiral elastic member 300 is converted into gravitational potential energy of the seat back 600, thereby reducing work of the driving device 600 on the seat back 600 and reducing power consumption of the motor.
When the seat back 600 needs to rotate clockwise from the reference position 601 to the second target position 603, the center of gravity of the seat back 600 moves from the high position to the low position, the driving device 600 (motor) drives the seat back 600 (mechanical arm) to rotate clockwise, and the transmission device 400 is also driven to rotate clockwise. At this time, the latch 403 pushes the two limit stoppers 1022, 1023, thereby driving the first rotating device 100 to rotate clockwise. The third turntable block 4011 slides in the first arc-shaped slide hole 2023, the second turntable 202 is not pushed at all, and the second rotating device 200 is stationary. Since the inner end of the spiral elastic member 300 is fixedly coupled to the first rotating device 100 and the outer end thereof is fixedly coupled to the second rotating device 200, the spiral elastic member 300 is deformed to generate a curl, and the gravitational potential energy of the seat back 600 is converted into the elastic potential energy of the spiral elastic member 300.
When the seat back 600 needs to rotate counterclockwise from the second target position 603 back to the reference position 601, the center of gravity of the seat back 600 moves from the low position to the high position, the driving device 600 (motor) drives the seat back 600 (mechanical arm) to rotate counterclockwise, and the transmission device 400 is also driven to rotate counterclockwise. When the seat back 600 returns to the reference position 601, the first rotating device 100 rotates counterclockwise by 90 degrees, the spiral elastic member 300 gradually returns to the original shape, and the elastic potential energy of the spiral elastic member 300 is converted into gravitational potential energy of the seat back 600, so that work of the driving device 600 on the seat back 600 is reduced, and energy consumption of a motor is reduced.
When the seat back 600 rotates in the clockwise direction in the vertical plane during the movement of the center of gravity of the seat back 600 from the high position to the low position, the transmission device 400 drives the first rotating device 100 to rotate in the clockwise direction; when the seat back 600 rotates in the counterclockwise direction in the vertical plane, the transmission 400 drives the second rotating device 200 to rotate in the counterclockwise direction.
When the seat back 600 rotates in the clockwise direction in the vertical plane during the movement of the center of gravity of the seat back 600 from the low position to the high position, the second rotating device 200 drives the transmission device 400 to rotate in the clockwise direction; when the seat back 600 rotates in the counterclockwise direction in the vertical plane, the first rotating device 100 rotates the transmission 400 in the counterclockwise direction.
In operation, the seat back 600 is driven by the driving device 600 to rotate in a vertical plane, and the driving device 400 can drive the first rotating device 100 or the second rotating device 200 to rotate within a certain range, and as the two ends of the spiral elastic piece 300 are respectively connected to the first rotating device 100 or the second rotating device 200, when any rotating device rotates, the spiral elastic piece 300 is stressed to deform, so that the functions of buffering and temporarily storing energy are achieved. When rotated to the proper angle, the user can lock the position of the seat back with an additionally provided locking device. When unlocked, the user can adjust the direction of rotation of the seat back according to specific needs.
In the present embodiment, the positions of the limiting hole 1021, the second turntable stop 2021, and the third turntable stop 4011 in fig. 2 can be changed left and right, and the operation modes and principles thereof are similar to those of the previous embodiments, and are not described herein. According to such a technical scheme, when the seat back 600 rotates in the clockwise direction in the vertical plane during the movement of the center of gravity of the seat back 600 from the high position to the low position, the transmission 400 drives the second rotating device 200 to rotate in the clockwise direction; when the seat back 600 rotates in the counterclockwise direction in the vertical plane, the transmission 400 drives the first rotating device 100 to rotate in the counterclockwise direction. When the seat back 600 rotates in the clockwise direction in the vertical plane during the movement of the center of gravity of the seat back 600 from the low position to the high position, the first rotating device 100 drives the driving device 400 to rotate in the clockwise direction; when the seat back 600 rotates in the counterclockwise direction in the vertical plane, the second rotating device 200 rotates the transmission 400 in the counterclockwise direction.
The embodiment provides a seat back regulator balancing device for a seat back, when the seat back moves forwards and backwards, only one or a group of same-direction elastic pieces are needed to ensure the moment balance of a system, so that the adjustment process is more convenient and quick, the load of a motor can be effectively lightened, the energy consumption is reduced, and meanwhile, the production and maintenance costs of components are reduced. In addition, the embodiment can effectively simplify the connecting structure, save space, improve the reliability and stability of the system and prolong the service life.
The foregoing is merely a preferred embodiment of the present invention and it should be noted that modifications and enhancements can be made by those skilled in the art without departing from the principles of the present invention, which modifications and enhancements are also intended to be regarded as being within the scope of the present invention.
Claims (5)
1. A seat back adjuster balancing apparatus comprising
A first rotating device;
the second rotating device is arranged outside the first rotating device;
at least one spiral elastic member having an inner end connected to the first rotating means and an outer end connected to the second rotating means; and
a transmission device, one end of which is connected to the first rotating device and/or the second rotating device; the other end of the chair is connected to the backrest;
the stabilizing device is used for installing the first rotating device and the second rotating device;
wherein the first rotating device comprises
A first turntable;
a limit sleeve protruding from the middle of the surface of the first rotating disc, which is close to one side of the spiral elastic piece; and
the inner end clamping groove is formed in the outer side wall of the limiting sleeve, and the inner end of the spiral elastic piece is clamped to the inner end clamping groove;
a first rotating disc stop protruding from a surface of the first rotating disc on a side away from the spiral elastic member; and
the limiting hole penetrates through the center of the limiting sleeve and the center of the first rotary table, and two limiting stops protruding inwards are arranged in the limiting hole;
the second rotating device comprises
The shell comprises a second turntable and an annular sleeve; the annular sleeve is sleeved outside the spiral elastic piece, and a pipe orifice at one side of the annular sleeve is fixedly connected to the edge of the second turntable; and
an outer end bayonet penetrating through the outer side wall of the annular sleeve, wherein the outer end of the spiral elastic piece is clamped to the outer end bayonet;
the second turntable stop block protrudes out of the surface of one side of the second turntable away from the annular sleeve;
the second turntable through hole penetrates through the center of the second turntable; and
the first arc sliding hole penetrates through the second rotary table, and the circle center of the arc of the first arc sliding hole is consistent with the circle center of the through hole of the second rotary table;
the coiled spring includes, but is not limited to, a flat spiral spring or torsion spring;
the transmission device comprises
The third turntable is tangential to the inner surface of the second turntable;
the first transmission shaft protrudes out of the center of the third turntable, penetrates through the through hole of the second turntable and is fixedly connected to the seat backrest; and
the third turntable stop block protrudes out of the surface of the third turntable and is clamped into the first arc-shaped sliding hole; the third rotary table stop block and the first transmission shaft are positioned on the same side close to the second rotary table;
the clamping block protrudes out of the center of the third turntable and is positioned at one side far away from the second turntable; the clamping block is clamped into the limiting hole; and
the second transmission shaft protrudes out of the surface of the clamping block, and the axis of the second transmission shaft and the axis of the first transmission shaft are positioned on the same straight line;
the stabilizing device comprises
A horizontal base; and
the first support plate and the second support plate are vertically fixed at the left end and the right end of the horizontal base;
the first support plate and the second support plate are oppositely arranged and parallel to each other.
2. The seat back adjuster balancing device of claim 1, wherein,
a first transmission shaft mounting hole is formed in the center of the first supporting plate and sleeved outside the first transmission shaft;
the lower part of the first supporting plate is provided with a second arc sliding hole which penetrates through the first supporting plate, and the arc circle center of the second arc sliding hole is consistent with the circle center of the first transmission shaft mounting hole.
3. The seat back adjuster balancing device of claim 1, wherein,
a second transmission shaft mounting hole is formed in the center of the second supporting plate and sleeved outside the second transmission shaft;
the edge of the upper part of the second supporting plate is provided with an arc bayonet, and the first rotating disc stop dog is clamped into the arc bayonet.
4. The seat back adjuster balancing device of claim 3, wherein,
the cross-sectional shape of the spiral spring includes, but is not limited to, rectangular, circular, and oval;
when the number of the spiral elastic pieces is more than two, the winding directions of all the spiral elastic pieces are the same;
when more than two spiral elastic pieces are deformed at the same time, the directions of restoring torque generated by all the spiral elastic pieces are the same.
5. A seat back adjuster comprising a seat back adjuster balancing device as claimed in any one of claims 1 to 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710319020.9A CN107136798B (en) | 2017-05-08 | 2017-05-08 | Seat back regulator and balancing device thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710319020.9A CN107136798B (en) | 2017-05-08 | 2017-05-08 | Seat back regulator and balancing device thereof |
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| CN107136798A CN107136798A (en) | 2017-09-08 |
| CN107136798B true CN107136798B (en) | 2023-05-30 |
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| CN201710319020.9A Active CN107136798B (en) | 2017-05-08 | 2017-05-08 | Seat back regulator and balancing device thereof |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109717566A (en) * | 2018-12-03 | 2019-05-07 | 安徽瀚洋旅游用品有限公司 | The roll wheel assembly of luggage |
| CN109393691A (en) * | 2018-12-03 | 2019-03-01 | 安徽瀚洋旅游用品有限公司 | A kind of luggage |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0790738B2 (en) * | 1992-07-16 | 1995-10-04 | 田中電機株式会社 | Seat reversing device |
| JPH08294428A (en) * | 1995-04-26 | 1996-11-12 | Yanagisawa Seiki Seisakusho:Kk | Seat back adjusting device in reclining seat |
| CN1679429A (en) * | 2004-04-07 | 2005-10-12 | 湖北中航精机科技股份有限公司 | Angle adjustment of plate spring seat and core device of back folder |
| US8251451B2 (en) * | 2007-01-17 | 2012-08-28 | Intier Automotive Inc. | Disc recliner assembly with biased synchronization |
| CN201264541Y (en) * | 2008-07-30 | 2009-07-01 | 比亚迪股份有限公司 | Seatback angle adjusting device |
| EP2348226A1 (en) * | 2010-01-22 | 2011-07-27 | Stoll Giroflex AG | Elastomer torsion spring element, device for transferring force with same and seat device with a device for transferring force |
| CN204071277U (en) * | 2014-08-18 | 2015-01-07 | 杭州博志家具设计有限公司 | Backrest rotates leaning device |
| CN207532171U (en) * | 2017-05-08 | 2018-06-26 | 克恩-里伯斯(太仓)有限公司 | A kind of seat back recliner and its balancing device |
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