CN215922000U

CN215922000U - Seat lumbar comfort support system

Info

Publication number: CN215922000U
Application number: CN202122323845.2U
Authority: CN
Inventors: 李伟; 唐杰; 辛艺
Original assignee: Chongqing Yanfeng Johnson Controls Automotive Components Co Ltd
Current assignee: Chongqing Adient Automotive Components Co Ltd
Priority date: 2021-09-24
Filing date: 2021-09-24
Publication date: 2022-03-01
Anticipated expiration: 2031-09-24

Abstract

The utility model discloses a comfortable seat lumbar support system which comprises a backrest, wherein a front support plate and a massage device are sequentially arranged in the backrest from front to back, the upper end of the front support plate is rotatably connected with the backrest, an elastic component is connected between the lower end of the front support plate and the backrest, a through hole is formed in the front support plate, a massage head is arranged on the massage device at a position corresponding to the through hole, and after the massage device is started, the massage head penetrates through the through hole along the thickness direction of the backrest and acts on a lumbar region of a user. The utility model has the beneficial effects that: has the dual functions of waist massage and elastic self-adaptive support, and the comfort is obviously improved.

Description

Seat lumbar comfort support system

Technical Field

The utility model relates to an automobile seat, in particular to a comfortable support system for a waist part of a seat.

Background

With the development of automobile science and technology, the requirement of consumers on the riding comfort of automobile seats is higher and higher, and an important criterion for evaluating whether the seats are comfortable is to effectively relieve driving fatigue. In the design of a traditional seat, the seat cushion is usually only arranged and supported by a seat basin, and the backrest is supported by a backrest framework, so that the support performance of the seat structure on a human body is not fully considered, the waist of the human body is in a suspension posture, and the driver and passengers are easy to feel tired in the waist after sitting for a long time.

To relieve the driver and occupant of lumbar fatigue, many seat backs have lumbar support structures built into them, such as: cavernosum supports, gasbag supports, integral type waist holds in palm supports etc. but these bearing structure are fixed mounting structure mostly, can only play simple support to the waist, and the travelling comfort is urgent need further optimization and upgrading.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides a comfortable support system for a waist of a seat, which has dual functions of waist massage and elastic adaptive support, and the comfort is significantly improved.

In order to achieve the purpose, the technical scheme of the utility model is as follows:

the utility model provides a seat waist travelling comfort braced system, includes the back, by preceding backup pad and massage device before to being equipped with in proper order after to in the back, its key lies in: the upper end and the back of preceding backup pad are rotated and are connected, are connected with elastic component between lower extreme and the back, be equipped with the via hole on the backup pad before, massage device is equipped with the massage head in the position that corresponds the via hole, and massage device starts the back, the massage head passes along back thickness direction the via hole to act on user's waist region.

Adopt above-mentioned structure, the lower extreme of preceding backup pad is hung by elastic component and is supported in the back to the upper end of preceding backup pad can rotate for the back, consequently, when user's lumbar support was in the preceding backup pad, preceding backup pad can carry out the adaptability along with human back's thrust or dead weight and float, thereby form an elastic support, had more excellent travelling comfort. Meanwhile, when the waist of a user is supported on the front supporting plate, the massage head of the massage device acts to massage the waist, and particularly when the massage function is not used, the massage head is recovered to the rear side area of the front supporting plate and is not in contact with the waist of the user, so that the safety of the seat can be ensured without being influenced by the massage head.

Preferably, the method comprises the following steps: the massage device comprises a support body, a rotating shaft which is in rotating fit with the support body, and a first motor which drives the rotating shaft to rotate, wherein the massage head is arranged on the support body in a lifting mode through a lifting assembly, an elastic element is arranged between the lifting assembly and the support body, the elastic element applies upward moving thrust to the lifting assembly, a lifting driving wheel set and a massage driving wheel are arranged in the support body in a rotating mode, and the lifting driving wheel set and the massage driving wheel are both in power connection with the rotating shaft; a traction rope is connected between the lifting driving wheel set and the lifting assembly, and the lifting driving wheel set rotates towards the direction of winding the traction rope, so that the lifting assembly can be forced to move downwards by overcoming the resistance of the elastic element; the massage driving wheel is coaxially connected with the massage head and used for driving the massage head to rotate.

By adopting the structure, the lifting driving wheel set rotates forwards and backwards to realize the lifting of the massage head, and the massage driving wheel drives the massage head to rotate to realize the waist massage function of the massage device.

Preferably, the method comprises the following steps: the lifting driving wheel set comprises a one-way bearing and a lifting driving wheel which are coaxially arranged, wherein the lifting driving wheel is in power connection with the rotating shaft, and one end of the traction rope is connected to the one-way bearing.

By adopting the structure, the unidirectional bearing and the elastic element are ingeniously combined through the traction rope, the massage head rises through the elastic element, and the massage head falls through the unidirectional bearing to roll up the traction rope, so that the massage head has the technical advantages of reasonable structural design and high product feasibility. The massage head is ensured to share the same driving shaft for massage rotation and lifting movement through the one-way bearing.

Preferably, the method comprises the following steps: the lifting device is characterized in that an assembly shaft is arranged in the support body in a rotating mode, the lifting driving wheel is fixedly sleeved on the upper portion of the assembly shaft, the inner ring of the one-way bearing is fixedly sleeved on the lower portion of the assembly shaft, an assembly ring is fixedly sleeved on the outer ring of the one-way bearing, and one end of the traction rope is fixedly connected to the assembly ring. The structure is adopted, so that the assembly is convenient.

Preferably, the method comprises the following steps: the lifting assembly comprises a tray, a first-stage guide post fixedly assembled at the lower end of the tray, and a second-stage guide post slidably sleeved on the first-stage guide post, wherein a first-stage lifting channel is arranged on the support body, and the second-stage guide post is slidably installed in the first-stage lifting channel.

By adopting the structure, the massage head is assembled in the support body in a two-stage sliding and folding mode, and the thickness and the size of the massage device are thinner under the folding state of the massage head, so that the massage device is easier to integrate and assemble into the backrest of the seat.

Preferably, the method comprises the following steps: the first-level guide post is internally provided with a mounting hole, one end of the traction rope is fixed in the mounting hole, the support body is provided with a guide wheel at a position corresponding to the lower end of the first-level lifting channel, and the traction rope is supported on the guide wheel in a sliding manner.

By adopting the structure, the assembly of the traction rope is facilitated, and the smoothness of the movement of the traction rope can be ensured.

Preferably, the method comprises the following steps: the massage device comprises a supporting block and a Z-direction driving mechanism, wherein the supporting block is connected to the second supporting rod in a sliding mode, and the Z-direction driving mechanism is used for driving the supporting block to slide along the height direction of the backrest. By adopting the structure, under the drive of the Z-direction driving mechanism, the massage device can move up and down relative to the back of a user, so that the massage device can be adjusted to the optimal lumbar support position to meet the use requirements of users with different body types, and can move up and down in the massage process, and walking and multi-region massage can be realized.

Preferably, the method comprises the following steps: the front supporting plate has elasticity, the upper end of the front supporting plate is rotatably hung on the first supporting rod, and the support block is positioned at the rear side of the front supporting plate. Adopt above-mentioned structure, can enough guarantee reciprocating of massage device, can further promote the travelling comfort again.

Preferably, the method comprises the following steps: the back support device is characterized by further comprising a pull cable and a pull cable motor for controlling the pull cable to move, wherein the pull cable is supported on the rear side of the second support rod, and the pull cable motor can drive the lower end of the second support rod to move in the thickness direction of the back support when working. By adopting the structure, the massage device and the front support plate can be adjusted in the thickness direction of the backrest.

Preferably, the method comprises the following steps: the elastic component comprises a first tension spring and a second tension spring which are distributed at two ends of the backrest in the width direction, wherein the first tension spring is connected between the tail end of the stay cable and the backrest, one end of the second tension spring is fixedly connected to the backrest in a hanging mode, and the other end of the second tension spring is connected to the stay cable in a sliding mode. By adopting the structure, the inhaul cable motor can be ensured to drive the inhaul cable to move, and the two ends of the inhaul cable can be ensured to be hung on the backrest by the spring, so that the inhaul cable has the technical advantages of reasonable structural design and high reliability.

Compared with the prior art, the utility model has the beneficial effects that:

1. under elastic component's effect, preceding backup pad can carry out the adaptability along with human back's thrust or dead weight and float, forms an elastic support, holds in the palm bearing structure for traditional seat waist, and the travelling comfort of seat has obtained showing and has promoted, is rich in senior sense.

2. The back is integrated in waist travelling comfort braced system to massage device, under the massage function does not launch the state, and the massage head is received and is put in waist braced system, has avoided the massage head to contact with driver and crew's waist always, has reduced the injured risk of waist when the car bumps, is favorable to guaranteeing the safety of taking of seat.

3. The one-way bearing and the elastic element are ingeniously combined through the traction rope, the massage head rises under the driving of the elastic element, and the massage head falls under the driving of the traction rope wound by the one-way bearing.

4. The massage head and the lifting component are assembled on the supporting body in a sliding mode through the two-stage lifting structure, the thickness and the size of the massage device in a folded state can be smaller, and therefore the massage device is enabled to be assembled in the seat backrest easily.

5. Due to the application of the one-way bearing, the lifting function and the rotating function of the massage head can be ensured to share one driving rotating shaft, and the structural design of the massage device is effectively simplified.

6. First bracing piece and preceding backup pad are elastic component, can form flexible support to user's waist, and the travelling comfort is better.

Drawings

FIG. 1 is a schematic view of a seat back and its internal layout according to an embodiment;

FIG. 2 is a schematic view of the interior of the backrest (front view);

FIG. 3 is a schematic view of the interior of the backrest (rear side view);

FIG. 4 is a schematic view of the overall exploded structure of the massage device;

FIG. 5 is a partially exploded view of the massage assembly position;

fig. 6 is a partial cross-sectional view of the position of the massage assembly (massage head raised state);

fig. 7 is a partial cross-sectional view of the position of the massage assembly (massage head retracted state);

FIG. 8 is an exploded view of the lift drive wheel assembly, the mounting shaft and the mounting ring;

fig. 9 is a schematic view reflecting the Z-direction drive mechanism assembly structure.

Detailed Description

The present invention will be further described with reference to the following examples and the accompanying drawings.

As shown in fig. 1 to 3, a comfortable support system for a seat waist, a front support plate 2 and a massage device 3 are installed inside a backrest 1, a first support rod 1a is transversely arranged in the middle of the backrest 1, the upper rear side of the front support plate 2 is rotatably connected to the first support rod 1a, an elastic component 4 is connected between the lower part of the front support plate 2 and the backrest 1, the elastic component 4 comprises a first tension spring 4a and a second tension spring 4b which are distributed at two ends of the backrest 1 in the width direction, that is, two ends of the lower part of the front support plate 2 are respectively hung in the backrest 1 through the first tension spring 4a and the second tension spring 4b, after a user waist is supported on the front support plate 2, due to the arrangement of the first tension spring 4a and the second tension spring 4b, when the user bears the thrust or the dead weight of the back of the human body, the front support plate 2 can elastically float in an adaptive manner, and the comfort is better.

In the present embodiment, to ensure comfort, the front support plate 2 and the first support rod 1a each have a suitable amount of elasticity.

As shown in fig. 3, the massage device 3 includes a support block 34 located at the rear side of the front support plate 2, the support block 34 can support the waist, the first support rod 1a is rotatably connected with two second support rods 1b extending downward along the height direction of the backrest 1, the support block 34 of the massage device 3 is slidably connected to the second support rods 1b, the massage device 3 is provided with a Z-direction driving mechanism 35 for driving the support block 34 to slide along the height direction of the backrest 1, and the massage device 3 can move up and down relative to the back of the user under the driving of the Z-direction driving mechanism 35, so that the support block 34 is adjusted to the optimal waist support position.

The specific structure of the Z-direction driving mechanism 35 for driving the supporting block 34 to move up and down along the height direction of the backrest 1 is as follows:

referring to fig. 9, the Z-direction driving mechanism 35 includes a screw rod 35a, a nut sleeve 35b threaded on the screw rod 35a, and a motor 35c for driving the nut sleeve 35b to rotate, a third support rod 1c is transversely disposed between the lower ends of the two second support rods 1b, the upper and lower ends of the screw rod 35a are respectively connected to the first support rod 1a and the third support rod 1c, and the motor 35c is fixed to the rear side of the support block 34.

The comfort support system that this embodiment provided can also carry out X to adjusting, specifically is:

please refer to fig. 2 and fig. 3, back 1 left side fixed mounting has cable motor 6, is connected with cable 5 on the cable motor 6, and the end-to-end connection of cable 5 is on back 1 right side, the rear side of second bracing piece 1b supports on cable 5, and based on this structure setting, cable motor 6 work can drive cable 5 shrink or release to make massage device 3 and preceding backup pad 2 move along back thickness direction, and then realize the position control of travelling comfort braced system in back thickness direction, promptly: and (4) adjusting in the X direction. In this embodiment, the cable motor 6 is an existing mature component, and the working principle thereof is not further described herein.

Above-mentioned first extension spring 4a is connected between 5 ends of cable and back 1, and the one end of second extension spring 4b is fixed to be articulate on back 1, and the other end slides through activity guide pin bushing 7 and articulates on cable 5, so design, can guarantee that cable motor 6 drives the motion of cable 5, can guarantee again that massage device 3 and preceding backup pad 2 are hung on the back by elastic component 4, have that structural design is reasonable, the technical advantage that the reliability is high.

As shown in fig. 4 to 8, the massage device 3 includes two sets of massage assemblies a, a rotating shaft 31, and a set of first motor 32, a support 341 is disposed at the rear side of the support block 34, the massage assemblies a, the rotating shaft 31, and the first motor 32 are all installed between the support block 34 and the support 341, the massage assembly a includes a support body 33, a massage head 3a, a lifting assembly 3b, an elastic element 3e, a lifting driving wheel set 3c, and a massage driving wheel 3d, in this embodiment, the support body 33 is formed by fastening an upper shell 331 and a lower shell 332, the massage head 3a is mounted on the support body 33 by the lifting assembly 3b in a lifting manner, the elastic element 3e is a compression spring, and is mounted between the lifting assembly 3b and the support body 33, and when there is no external force, the elastic element 3e pushes the lifting assembly 3b to move upward to realize the lifting action of the massage head 3 a.

The supporting body 33 is provided with an assembly shaft 3g in a rotating manner, the lifting driving wheel set 3c comprises a one-way bearing 3c1 and a lifting driving wheel 3c2 which are coaxially arranged, wherein the lifting driving wheel 3c2 is fixedly sleeved on the upper portion of the assembly shaft 3g, an inner ring a of the one-way bearing 3c1 is fixedly sleeved on the lower portion of the assembly shaft 3g, an outer ring b of the one-way bearing 3c1 is fixedly sleeved with an assembly ring 3h, and a traction rope 3f is connected between the assembly ring 3h and the lifting component 3 b.

The massage driving wheel 3d is rotatably installed in the supporting body 33, the connecting column 3a1 extending downwards is arranged in the middle of the massage head 3a, the connecting column 3a1 can be assembled on the axial direction of the massage driving wheel 3d in a vertically sliding manner, the connecting column 3a1 can move up and down along the axial direction of the massage driving wheel 3d and can synchronously rotate along with the massage driving wheel 3d, the rotating shaft 31 is also rotatably installed in the supporting body 33, the rotating shaft 31 is provided with a worm 31a and helical teeth 31b, the lifting driving wheel 3c2 is a worm wheel and is meshed with the worm 31a, and the massage driving wheel 3d is a helical gear and is meshed with the helical teeth 31 b.

As shown in fig. 2, the front support plate 2 is provided with a through hole 2a, after the massage device 3 is started, under the pushing action of the elastic element 3e, the massage head 3a passes through the through hole 2a forward along the thickness direction of the backrest 1, the first motor 32 drives the rotating shaft 31 to rotate, and then the massage head 3a is driven to continuously rotate through the inclined teeth 31b → the massage driving wheel 3d → the connecting column 3a1 in sequence, so as to massage the waist of the user.

After the massage is finished, please refer to fig. 5 and 6, the first motor 32 works in reverse direction to drive the lifting driving wheel set 3c to rotate in reverse direction, and due to the arrangement of the one-way bearing 3c1, the assembly ring 3h winds up the pulling rope 3f during the reverse rotation, and the pulling rope 3f forces the lifting assembly 3b to slide downwards against the resistance of the elastic element 3e, so that the massage head 3a is retracted into the backrest. When the user needs to use the waist function again, the first motor 32 works in the forward direction to drive the rotating shaft 31 to rotate, the rotating shaft 31 drives the lifting driving wheel set 3c to rotate towards the direction opposite to the retracting traction rope, so that the self-locking force of the one-way bearing 3c1 is released, namely, the holding force of the traction rope 3f is released, at the moment, the thrust of the elastic element 3e can drive the lifting component 3b to ascend, and the massage head 3a is enabled to ascend to the waist position of the user.

In this embodiment, the lifting assembly 3b has the following specific structure:

referring to fig. 5 and 6, the lifting assembly 3b includes a tray 3b1, a first-stage guide post 3b2 fixedly mounted at a lower end of the tray 3b1, and a second-stage guide post 3b3 slidably mounted on the first-stage guide post 3b2, a first-stage lifting channel 33a is provided on the support body 33, a second-stage guide post 3b3 is slidably mounted in the first-stage lifting channel 33a, the massage head 3a is mounted in the support body 33 in a two-stage sliding and folding manner, and the massage device 3 has a thinner thickness and a smaller size in a folded state of the massage head 3a, so that the massage device 3 is more easily integrated and mounted in the seat back 1.

In order to conveniently install the hauling rope 3f, the first-level guide post 3b2 is internally provided with an installation hole 3b21, one end of the hauling rope 3f, far away from the assembly ring 3h, penetrates through the first-level lifting channel 33a and then is fixedly connected into the installation hole 3b21, the support body 33 is provided with a guide wheel 3i at the position corresponding to the lower end of the first-level lifting channel 33a, and the hauling rope 3f is supported on the guide wheel 3i in a sliding manner.

Please refer to fig. 6, the connection column 3a1 on the lower side of the middle part of the massage head 3a) penetrates the tray 3b1 downward), and the connection column 3a1) is sleeved with a lock cap c at a position corresponding to the lower side of the tray 3b1, so that the arrangement can ensure that the massage head 3a moves up and down along with the tray 3b1 synchronously, and the massage head 3a rotates relative to the tray 3b1, thereby realizing the lifting and massage without errors.

Finally, it should be noted that the above-mentioned description is only a preferred embodiment of the present invention, and those skilled in the art can make various similar representations without departing from the spirit and scope of the present invention.

Claims

1. The utility model provides a seat waist travelling comfort braced system, includes back (1), backup pad (2) and massage device (3) before being equipped with in proper order to the back by preceding in back (1), its characterized in that: the upper end and the back (1) of preceding backup pad (2) are rotated and are connected, are connected with elastic component (4) between lower extreme and back (1), be equipped with via hole (2a) on preceding backup pad (2), massage device (3) are equipped with massage head (3a) in the position that corresponds via hole (2a), and massage device (3) start-up back, massage head (3a) pass along back (1) thickness direction via hole (2a) to act on user's waist region.

2. The seat lumbar comfort support system of claim 1, wherein: the massage device (3) comprises a support body (33), a rotating shaft (31) which is in running fit with the support body (33) and a first motor (32) which drives the rotating shaft (31) to rotate, the massage head (3a) is installed on the support body (33) in a lifting mode through a lifting component (3b), an elastic element (3e) is installed between the lifting component (3b) and the support body (33), the elastic element (3e) applies upward moving thrust to the lifting component (3b), a lifting driving wheel set (3c) and a massage driving wheel (3d) are installed in the support body (33) in a rotating mode, and the lifting driving wheel set (3c) and the massage driving wheel (3d) are both in power connection with the rotating shaft (31);

a traction rope (3f) is connected between the lifting driving wheel set (3c) and the lifting component (3b), the lifting driving wheel set (3c) rotates towards the direction of furling the traction rope (3f), and the lifting component (3b) can be forced to move downwards by overcoming the resistance of the elastic element (3 e);

the massage driving wheel (3d) is coaxially connected with the massage head (3a) and is used for driving the massage head (3a) to rotate.

3. The seat lumbar comfort support system of claim 2, wherein: the lifting driving wheel set (3c) comprises a one-way bearing (3c1) and a lifting driving wheel (3c2) which are coaxially mounted, wherein the lifting driving wheel (3c2) is in power connection with the rotating shaft (31), and one end of the traction rope (3f) is connected to the one-way bearing (3c 1).

4. The seat lumbar comfort support system of claim 3, wherein: the internal rotation of supporter (33) is provided with assembly axle (3g), the fixed suit of lift drive wheel (3c2) is on the upper portion of assembly axle (3g), the fixed suit of inner circle (a) of one-way bearing (3c1) is in the lower part of assembly axle (3g), the fixed suit of outer lane (b) of one-way bearing (3c1) is equipped with assembly ring (3h), haulage rope (3f) one end fixed connection is on assembly ring (3 h).

5. The seat lumbar comfort support system of claim 2, wherein: lifting unit (3b) include tray (3b1), fixed assembly at one-level guide post (3b2) of tray (3b1) lower extreme to and slip suit second grade guide post (3b3) on one-level guide post (3b2), be equipped with one-level lift passageway (33a) on supporter (33), second grade guide post (3b3) slidable mounting is in one-level lift passageway (33 a).

6. The seat lumbar comfort support system of claim 5, wherein: the primary guide post (3b2) is internally provided with a mounting hole (3b21), one end of the traction rope (3f) is fixed in the mounting hole (3b21), the support body (33) is provided with a guide wheel (3i) at a position corresponding to the lower end of the primary lifting channel (33a), and the traction rope (3f) is supported on the guide wheel (3i) in a sliding manner.

7. The seat lumbar comfort support system of claim 1, wherein: the middle part of the backrest (1) is transversely provided with a first supporting rod (1a), a second supporting rod (1b) extending downwards along the height direction of the backrest (1) is rotatably arranged on the first supporting rod (1a), the massage device (3) comprises a supporting block (34) and a Z-direction driving mechanism (35), wherein the supporting block (34) is connected to the second supporting rod (1b) in a sliding mode, and the Z-direction driving mechanism (35) is used for driving the supporting block (34) to slide along the height direction of the backrest (1).

8. The seat lumbar comfort support system of claim 7, wherein: the front supporting plate (2) has elasticity, the upper end of the front supporting plate is rotatably hung on the first supporting rod (1a), and the support block (34) is positioned at the rear side of the front supporting plate (2).

9. The seat lumbar comfort support system of claim 7, wherein: the backrest is characterized by further comprising a stay cable (5) and a stay cable motor (6) for controlling the stay cable (5) to move, wherein the stay cable (5) is supported at the rear side of the second supporting rod (1b), and the stay cable motor (6) can drive the lower end of the second supporting rod (1b) to move in the thickness direction of the backrest (1) when working.

10. The seat lumbar comfort support system of claim 9, wherein: elastic component (4) are including distributing first extension spring (4a) and second extension spring (4b) at back (1) width direction both ends, and wherein first extension spring (4a) is connected between cable (5) end and back (1), and the one end of second extension spring (4b) is fixed to be articulated on back (1), and the other end slides to articulate on cable (5).