Seat waist support

Abstract

The invention discloses a seat waist support which comprises a backrest and a supporting body installed in the backrest, and the upper end of the supporting body is rotatably connected to the backrest; a jacking mechanism is arranged in the backrest and used for driving the upper end of the supporting body to rotate around the backrest so that the lower portion of the supporting body can move front and back relative to the backrest. The seat waist support has the advantages that the jacking mechanism works to push the supporting body to rotate with the upper end as the center and push the lower portion of the supporting body to move front and back, the front-back protruding state of the seat waist area can be changed, and front-back adjustment of the seat waist support is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of automobile seats, and in particular to a seat lumbar support. Background Art

[0002] As the automotive industry is booming, people are using cars more and more frequently, and the time they spend in cars is also increasing. As a component that drivers and passengers are in contact with for a long time during driving, the comfort and functionality of car seats are increasingly valued. As the core stress-bearing part of the human body, the waist is prone to fatigue, soreness and other problems if it is not well supported and relaxed when driving or riding for a long time, which seriously affects the driving experience and even endangers physical health. Therefore, among the many seat functions, the lumbar support is crucial for the lumbar support of drivers and passengers.

[0003] However, the existing seats have very limited space because a large number of other functional components, such as massage devices, heating and ventilation systems, seat adjustment motors, etc., are already installed inside. At this time, if a traditional mechanical multi-directional adjustable lumbar support is installed, the internal structure of the seat will appear too large and bloated, which is not conducive to the lightweight design of the seat. Summary of the invention

[0004] In view of this, the present invention provides a seat lumbar support having the advantages of simple and compact structure.

[0005] To achieve the above purpose, the technical solution of the present invention is as follows:

[0006] A seat lumbar support, the key of which is: comprising a backrest and a support body installed in the backrest, wherein the upper end of the support body is rotatably connected to the backrest;

[0007] A lifting mechanism is arranged inside the backrest, and the lifting mechanism is used to drive the upper end of the support body to rotate around the backrest, so that the lower part of the support body can move forward and backward relative to the backrest.

[0008] With the above structure, the lifting mechanism works to push the support body to rotate around the upper end, and the lower part of the support body moves forward and backward, so as to change the front and rear protrusion state of the seat waist area and realize the front and rear adjustment of the seat waist support.

[0009] As a preference, the lifting mechanism is located at the rear side of the support body, and comprises an air bag fixedly arranged in the backrest. With the above structure, the air bag is inflated, and the air bag expands, so that the lower part of the support body can be pushed forward.

[0010] As a preferred embodiment, the lifting mechanism further includes a mounting plate arranged at the rear side of the support body, the upper end of the support body is rotatably connected to the upper end of the mounting plate, the lower end of the support body is in a suspended state, and the air bag is fixedly mounted on the mounting plate. With the above structure, the air bag expands, which can cause the upper end of the support body to rotate upward around the upper end of the mounting plate, and the lower end of the support body to push forward relative to the backrest. When the air bag is deflated, the support body can rotate downward under gravity, and the lower end of the support body can move toward the mounting plate. Such a structural design is simple and compact, and can effectively save space.

[0011] As a preferred embodiment, a massager is integrated in the supporting body. With the above structure, the car seat can be compact and lightweight in design while having functions such as lumbar support and massage.

[0012] As a preferred embodiment, the upper end of the air bag is fixed to the mounting plate via a buckle column. The above structure can fix the air bag and prevent the air bag from being displaced or falling off due to a large external force.

[0013] Preferably, the number of the air bags is at least two, and two adjacent air bags are arranged overlappingly. The above structure can increase the travel of the waist support for front and rear adjustment.

[0014] Preferably, the number of the airbags is two, an upper airbag and a lower airbag, and the lower airbag is sandwiched between the lower part of the upper airbag and the mounting plate. The above structure can increase the stroke in a limited space, so that the lifting mechanism structure is more compact.

[0015] Preferably, the support body is arranged in the backrest through a base plate, the support body is arranged on the front side of the base plate so as to slide up and down, and the upper end of the base plate is rotatably connected to the upper end of the mounting plate. With the above structure, the massager integrated thereon can massage the user's waist and back in a wide range by sliding the support body up and down, and at the same time, the up and down protrusion state of the waist area of ​​the seat can be changed, thereby realizing the up and down adjustment of the waist support.

[0016] As a preference, the upper end of the base plate is rotatably connected to the mounting plate via a rotating bracket. The above structure can save space and increase the flexibility and adaptability of the entire structure.

[0017] Preferably, a support plate is installed in the backrest, the support plate is a flexible plastic plate, the support plate is located at the front side of the support body, and the support body is in sliding contact with the back side of the support plate. With the above structure, when the lifting mechanism drives the lower part of the support body to move forward, the support body can cause the support plate to deform and act on the user's waist. When the support body returns to the initial state, the support plate can return to the original state to ensure the flatness of the backrest surface.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. The lumbar support provided by the present invention can change the front and rear protrusion state of the lumbar area of ​​the seat by rotating the upper end of the support body to the backrest, and the lifting mechanism drives the upper end of the support body to rotate around the backrest, so that the lower part of the support body can move forward relative to the backrest. The front and rear adjustment function of the lumbar support can be achieved by controlling the rotation angle of the support body.

[0020] 2. The use of air bags to achieve lifting has the advantage of a simple and compact structure, which can help integrate a relatively large mechanical massager into the supporting body, providing a flexible and effective way to realize product functions and improve user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is the front view of the seat lumbar support;

[0022] Figure 2 This is a reference diagram of the seat lumbar support when not in use;

[0023] Figure 3 This is a reference diagram of the seat lumbar support in use;

[0024] Figure 4 A schematic diagram showing the back structure of the seat lumbar support;

[0025] Figure 5 It is a schematic diagram of the structure after the baffle 11 is installed on the support body 1;

[0026] Figure 6 A schematic diagram showing the internal structure of the support body 1;

[0027] Figure 7 It is a structural schematic diagram of the lifting mechanism 2. DETAILED DESCRIPTION

[0028] The present invention is further described below in conjunction with embodiments and drawings.

[0029] like Figure 1 As shown, a seat lumbar support comprises a backrest A and a support body 1 installed in the backrest A, wherein the upper end of the support body 1 is rotatably connected to the backrest A. Figure 2 and 3 As shown, a lifting mechanism 2 is provided inside the backrest A, and the lifting mechanism 2 can drive the upper end of the support body 1 to rotate around the backrest A, so that the lower part of the support body 1 can move forward and backward relative to the backrest A.

[0030] Based on the above structural design, by rotating the upper end of the support body 1 and connecting it to the backrest A, the lifting mechanism 2 drives the upper end of the support body 1 to rotate around the backrest A, and the lower part of the support body 1 moves forward and backward, the front and rear protrusion state of the lumbar area of ​​the seat can be changed, thereby realizing the front and rear adjustment of the lumbar support.

[0031] In practical application, the massager B can be arranged in the support body 1, so that the car seat can be compact and lightweight in design while having functions such as lumbar support and massage. Figure 5 and 6 The massager B includes a swing arm B1 rotatably arranged on a supporting body 1 and a driving mechanism. A massage head B2 is provided at the far end of the swing arm B1. The driving mechanism is used to make the swing arm B1 reciprocate within a certain range along the width direction of the supporting body 1 (the width direction of the supporting body 1 corresponds to the width direction of the car seat), so that the massage head B2 at the far end of the swing arm B1 forms a kneading massage.

[0032] Furthermore, Figure 2 and 3 As shown, the lifting mechanism 2 is located at the rear side of the support body 1, and includes an air bag 21 fixed in the backrest A, combined with Figure 6 As shown, the air bag 21 is connected to an air pump 25. When the waist support is not in use, the air bag 21 is in an uninflated state, and the air bag 21 is close to the rear side of the support body 1. When the waist support function is needed, the air pump 25 inflates the air bag 21, and the air bag 21 expands, that is, the lower part of the support body 1 can be pushed forward.

[0033] Further, if Figure 2 and 3 As shown, the lifting mechanism 2 also includes a mounting plate 22 arranged on the rear side of the support body 1, the upper end of the support body 1 is rotatably connected to the upper end of the mounting plate 22, the lower end of the support body 1 is in a suspended state, and the air bag 21 is fixed on the mounting plate 22. The air bag 21 expands, which can cause the upper end of the support body 1 to rotate upward around the upper end of the mounting plate 22, and the lower end of the support body 1 is pushed forward relative to the backrest A. When the air bag 21 is deflated, the support body 1 can rotate downward under gravity, and the lower end of the support body 1 can move toward the mounting plate 22. Such a structural design is simple and compact, does not occupy additional space, and can help integrate a relatively large mechanical massager in the support body 1.

[0034] In order to improve the front-rear adjustment range of the lumbar support, there are at least two air bags 21, and two adjacent air bags 21 are overlapped.

[0035] In this embodiment, there are two air bags 21. Figure 3 and 7The two air bags 21 are distributed up and down along the height direction of the backrest A. The two air bags 21 are respectively an upper air bag 211 and a lower air bag 212. The lower air bag 212 is sandwiched between the lower part of the upper air bag 211 and the mounting plate 22, that is, the two air bags 21 partially overlap. Such a design can increase the stroke within a limited space, so that the structure of the lifting mechanism 2 is more compact. At the same time, the supporting force of the overlapping part of the two air bags 21 will be more uniform and stable, further improving the comfort and stability of the overall support.

[0036] In this embodiment, a felt material is provided on the front surface of the mounting plate 22, and the air bag 21 is fixed on the felt material. The felt material can stably fix the air bag 21 on the mounting plate 22, and the felt material can serve as a buffer layer to reduce the friction between the air bag and other components and reduce noise.

[0037] Re-attend Figure 7 The upper ends of the two air bags 21 are fixed to the mounting plate 22 by the buckle columns 23. Such a design can further constrain the air bags 21, prevent the air bags 21 from being displaced or falling off due to a large external force, and improve the stability of the air bags 21 when in use.

[0038] like Figure 1 As shown, a support plate 4 is installed in the backrest A. The support plate 4 is a flexible plastic plate. The support plate 4 is located in front of the support body 1 and contacts the support body 1. When used, the support plate 4 corresponds to the user's waist and back position. Figure 2 and Figure 3 It can be seen that when the lifting mechanism 2 drives the lower part of the support body 1 to move forward, the support body 1 can cause the support plate 4 to deform and act on the user's waist. When the support body 1 returns to its initial state, the support plate 4 can return to its original state to ensure that the surface of the backrest A is flat.

[0039] like Figure 6 As shown, the support body 1 is arranged in the backrest A through the base plate A1, and the support body 1 can be slidably arranged on the front side of the base plate A1, and the support body 1 is in sliding contact with the back side of the support plate 4, and the upper end of the base plate A1 is rotatably connected with the upper end of the mounting plate 22. By sliding the support body 1 up and down, the massager integrated thereon can massage the user's waist and back in a large range. At the same time, by moving the support body 1 up and down, the up and down protrusion state of the waist area of ​​the seat can be changed, and the up and down adjustment of the waist support is realized, so that the seat waist support provided in this embodiment has the function of front-back up-down four-way adjustment, further improving the user's riding comfort.

[0040] For example Figure 4As shown, a suspension wire 3 extending upward is fixedly arranged on the back side of the mounting plate 22, and a rotating bracket 31 is arranged on the suspension wire 3. The upper end of the substrate A1 is rotatably connected to the upper end of the mounting plate 22 through the rotating bracket 31. In this way, space can be saved and the flexibility and adaptability of the entire structure are increased.

[0041] Please refer to Figure 2 and 5 In order to protect the components on the support body 1, a baffle 11 is fixedly provided on the support body 1, and the front side of the baffle 11 is in sliding contact with the back side of the support plate 4.

[0042] Finally, it should be noted that the above description is only a preferred embodiment of the present invention. Under the guidance of the present invention, ordinary technicians in this field can make various similar expressions without violating the purpose and claims of the present invention, and such changes all fall within the scope of protection of the present invention.

Claims

1. A seat lumbar support, characterized in that: It comprises a backrest (A) and a supporting body (1) installed in the backrest (A), wherein the upper end of the supporting body (1) is rotatably connected to the backrest (A); A lifting mechanism (2) is provided inside the backrest (A), and the lifting mechanism (2) is used to drive the upper end of the support body (1) to rotate around the backrest (A), so that the lower part of the support body (1) can move forward and backward relative to the backrest (A).

2. The seat lumbar support according to claim 1, characterized in that: The lifting mechanism (2) is located at the rear side of the supporting body (1), and comprises an air bag (21) fixedly arranged in the backrest (A).

3. The seat lumbar support according to claim 2, characterized in that: The lifting mechanism (2) also includes a mounting plate (22) arranged on the rear side of the supporting body (1); the upper end of the supporting body (1) is rotatably connected to the upper end of the mounting plate (22); the lower end of the supporting body (1) is in a suspended state; and the air bag (21) is fixedly mounted on the mounting plate (22).

4. The seat lumbar support according to claim 1 or 3, characterized in that: A massager is integrated into the support body (1).

5. The seat lumbar support according to claim 3, characterized in that: The upper end of the air bag (21) is fixed to the mounting plate (22) via a snap-fit ​​column (23).

6. The seat lumbar support according to claim 2, characterized in that: The number of the air bags (21) is at least two, and two adjacent air bags (21) are arranged overlappingly.

7. The seat lumbar support according to claim 2, characterized in that: The number of the air bags (21) is two, namely an upper air bag and a lower air bag, and the lower air bag is sandwiched between the lower part of the upper air bag and the mounting plate (22).

8. The seat lumbar support according to claim 1, characterized in that: The support body (1) is arranged in the backrest (A) through a base plate (A1); the support body (1) is slidably arranged on the front side of the base plate (A1) up and down; the upper end of the base plate (A1) is rotatably connected to the upper end of the mounting plate (22).

9. The seat lumbar support according to claim 8, characterized in that: The upper end of the base plate (A1) is rotatably connected to the mounting plate (22) via a rotating bracket (31).

10. The seat lumbar support according to claim 8, characterized in that: A support plate (4) is installed in the backrest (A); the support plate (4) is a flexible plastic plate; the support plate (4) is located on the front side of the support body (1); the support body (1) is in sliding contact with the back side of the support plate (4).

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