Manually adjustable rear seat hip support

Abstract

The present invention discloses a manually adjustable seat buttocks rear support structure, comprising a backrest, a support assembly rotatably mounted on the lower end of the backrest, an operating component mounted on the backrest, a transmission component connected between the operating component and the support assembly, and under the transmission action of the transmission assembly, the operating component can control at least part of the support assembly to move forward relative to the backrest. The beneficial effect of the present invention is that after the user sits on the seat, the operating component is manually operated, and then the support assembly is driven to move under the transmission action of the transmission assembly, and the upper end of the support assembly moves forward to support the user's buttocks rear side, thereby improving the comfort experience of the seat.

Description

Technical Field

[0001] The invention relates to the technical field of automobile seats, and in particular to a manually adjustable seat buttocks rear support structure. Background Art

[0002] The comfort of seats plays a vital role in the user's driving experience. Nowadays, both automobile manufacturers and consumer terminals have put forward more stringent requirements on the comfort of car seats.

[0003] In terms of the comfortable structural design of seats, the current mainstream technical routes include seat massage, back massage, flexible support and lumbar support. These technical means have improved the driving experience of the seats to a certain extent and relieved the user's muscle fatigue in the buttocks, waist, shoulders and back areas.

[0004] However, after a user sits on a seat, the area between the waist and buttocks (hip joint, coccyx) is usually still in a non-supported state, and the comfort needs to be optimized and upgraded. In the existing seat structure design, there is almost no research on the support structure in this area. Summary of the invention

[0005] In view of this, the present invention provides a manually adjustable seat buttocks rear support structure for supporting the rear side of the user's buttocks and improving the seat comfort.

[0006] To achieve the above purpose, the technical solution of the present invention is as follows:

[0007] A manually adjustable seat hip rear support structure includes a backrest, the key of which is that a support assembly is rotatably mounted on the lower end of the backrest, an operating component is mounted on the backrest, a transmission component is connected between the operating component and the support assembly, and under the transmission action of the transmission component, the operating component can control at least part of the support assembly to move forward relative to the backrest.

[0008] With the above structure, after the user sits on the seat, he manually operates the operating component, and then the support component is driven to move under the transmission action of the transmission component. The upper end of the support component moves forward to support the back of the user's buttocks, that is, the area between the waist and buttocks, thereby improving the comfort experience of the seat.

[0009] Preferably, a bracket assembly is fixedly arranged at the lower part of the backrest, which includes a first component, a second component and a third component arranged in sequence along the width direction of the backrest, and the support assembly includes a support panel and a rotating shaft fixedly arranged at the lower part of the rear end of the support panel, and both ends of the rotating shaft are rotatably supported on the first component and the second component. With the above structure, the rotatable installation of the support assembly is realized.

[0010] Preferably, the second component has a side support plate, the transmission assembly includes a gear transmission mechanism and a belt transmission mechanism respectively installed on both sides of the side support plate, the gear transmission mechanism includes mutually meshing gears and sector-shaped toothed plates, the first pulley of the belt transmission mechanism is coaxially fixed with the operating component, the second pulley is coaxially fixed with the gear, and the center position of the sector-shaped toothed plate is fixedly sleeved on the rotating shaft. With the above structure, the structural layout of the operating component, the transmission assembly, and the second component is reasonable, and the support assembly can be driven to rotate forward at the lower end of the backrest by manually controlling the rotation of the operating component.

[0011] Preferably, the belt transmission mechanism is located between the second component and the third component, a mounting support is provided on the side of the third component away from the second component, the mounting support is fixedly connected to the side of the backrest, the operating component includes a hand wheel located outside the backrest, a connecting shaft is provided on one side of the hand wheel, the connecting shaft is rotatably supported on the second component and the third component, and the first belt pulley is fixedly sleeved on the connecting shaft. With the above structure, the parts and their assembly relationship are reasonably designed, which is conducive to modular installation directly on the basis of the existing platform frame, thereby avoiding changing the existing frame structure, so as to achieve the purpose of saving development and manufacturing costs.

[0012] Preferably, the front side of the support panel is in an arcuate structure, and the first support arm and the second support arm are fixedly installed at both ends of the rear side, a retaining shaft is fixed between the upper ends of the first support arm and the second support arm, and the two ends of the rotating shaft are respectively fixed to the lower ends of the first support arm and the second support arm. With the above structure, the support panel with an arcuate structure helps to ensure the comfort of support. The retaining shaft and the rotating shaft are simultaneously provided on the rear side of the support panel, which helps to improve the stability of the support assembly structure. The rotating shaft is located at the lower ends of the first support arm and the second support arm, which can ensure that the rotation centerline of the support panel is set downward. When the rotating shaft is driven to rotate, the upper end of the support panel will move forward, thereby achieving comfortable support for the back of the user's buttocks.

[0013] Preferably, the support panel is provided with connecting blocks at positions corresponding to the first support arm and the second support arm, the ends of the connecting blocks are sleeved on the retaining shaft, a positioning groove is provided in the middle of the connecting blocks, and the ends of the first support arm and the second support arm are provided with positioning blocks adapted to the positioning groove, and the positioning blocks can be embedded in the positioning groove along the axial direction of the retaining shaft. The above structure is easy to assemble and can ensure the structural stability of the support assembly.

[0014] Preferably, the second support arm is provided with a connecting portion protruding toward the sector tooth plate, the connecting portion is welded to the side of the sector tooth plate, and the end of the retaining shaft passes through the connecting block, the connecting portion and the sector tooth plate in sequence. The above structure can maintain the structural stability of the support assembly.

[0015] Preferably, the lower end of the backrest has a rotation axis arranged along its width direction, the rotation axis is located at the rear side of the support panel, and the first support arm, the second support arm and the fan-shaped tooth plate are all provided with an avoidance notch adapted to the rotation axis. The above structure is adopted to facilitate assembly and avoid interference with the rotation axis.

[0016] Preferably, the lower end of the side support plate is provided with a horizontal support portion extending to one side, the upper end of the horizontal support portion is formed with a mounting groove, the center end of the sector tooth plate is located in the mounting groove, and the end of the rotating shaft passes through the sector tooth plate and the side walls of the mounting groove. The above structure is adopted to facilitate assembly.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The upper end of the support panel can be moved forward by manually controlling the operating component, so as to support the back of the user's buttocks, that is, the area between the waist and buttocks, which helps to improve the comfort of the seat.

[0019] 2. The components and their assembly relationships are reasonably designed. Without changing the existing skeleton structure, the installation of supporting components, transmission components, operating components and other structures can be achieved. It has the technical advantages of low cost and good market application prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of a car seat;

[0021] Figure 2 is a cross-sectional view of a car seat;

[0022] Figure 3 A structural diagram to reflect the assembly layout relationship of the operating components, transmission components, bracket components and support components;

[0023] Figure 4 for Figure 3 Schematic diagram of the exploded structure of each component;

[0024] Figure 5 is a schematic structural diagram of a second component;

[0025] Figure 6 It is a schematic structural diagram of the second supporting arm. DETAILED DESCRIPTION

[0026] The present invention is further described below in conjunction with embodiments and drawings.

[0027] like Figures 1 to 3As shown, the backrest 1 of the automobile seat is rotatably mounted on the rear end of the seat frame 7 with the rotation axis 11 as the rotation fulcrum. A bracket assembly 5 is provided at the lower end of the backrest 1 at a position corresponding to the rotation axis 11. The bracket assembly 5 is composed of a first component 51, a second component 52 and a third component 53, wherein the first component 51 is fixed to the left frame of the backrest 1, and the second component 52 and the third component 53 are fixed to the right frame of the backrest 1.

[0028] For example Figure 3 and 4 As shown, a support assembly 3 is rotatably installed on the bracket assembly 5, and the support assembly 3 is composed of a support panel 31, a rotating shaft 32, a first support arm 33, a second support arm 34 and a retaining shaft 35, wherein the front side of the support panel 31 is an arc-shaped structure, which has better comfort when supporting the user's body, and the rotating shaft 32, the first support arm 33, the second support arm 34 and the retaining shaft 35 are all installed on the rear side of the support panel 31. In order to ensure the stability of the support of the support panel 31, the rotating shaft 32, the first support arm 33, the second support arm 34 and the retaining shaft 35 constitute a rectangular frame structure, the first support arm 33 and the second support arm 34 are located at the left and right ends of the rear side of the support panel 31, the retaining shaft 35 and the rotating shaft 32 are located at the upper and lower ends of the rear side of the support panel 31, and the ends of the retaining shaft 35 and the rotating shaft 32 are fixedly connected to the corresponding first support arm 33 and the second support arm 34.

[0029] A manipulation component 2 is installed on the side of the backrest 1, and the manipulation component 2 includes a handwheel 2a located outside the backrest 1. A connecting shaft 2b extending into the backrest 1 is provided on the inner side of the handwheel 2a. A transmission assembly 4 is arranged between the connecting shaft 2b and the rotating shaft 32. The transmission assembly 4 is composed of a first pulley 43, a belt 45, a second pulley 44, a gear 41 and a sector tooth plate 42 that are sequentially connected in power. The center position of the sector tooth plate 42 is fixedly mounted on the rotating shaft 32, the first pulley 43 is fixedly mounted on the connecting shaft 2b, and the connecting shaft 2b is rotatably mounted on the second member 52 and the third member 53. The two ends of the rotating shaft 32 of the support assembly 3 are rotatably supported on the first member 51 and the second member 52.

[0030] like Figure 2 and 4 As shown, therefore, manually controlling the rotation of the hand wheel 2a on the outside of the backrest 1 can sequentially drive the connecting shaft 2b, the first pulley 43, the belt 45, the second pulley 44, the gear 41, and the fan-shaped toothed plate 42 to rotate, thereby driving the support assembly 3 to rotate around the rotating shaft 32 as the rotation center. Since the center line of the rotating shaft 32 is arranged lower than the support panel 31, the rotation of the rotating shaft 32 can drive the upper end of the support panel 31 to move forward, so that the foam 6 at the lower end of the backrest 1 protrudes forward, thereby achieving comfortable support for the back of the user's buttocks.

[0031] For example Figure 4 As shown, for the convenience of assembly, the second component 52 has a side support plate 521, an assembly space is formed between the side support plate 521 and the third component 53, the belt transmission mechanism is installed in the assembly space, the gear transmission mechanism composed of the gear 41 and the fan-shaped tooth plate 42 meshing with each other is installed on the left side of the side support plate 521, and the third component 53 is provided with a mounting bracket 531 on the side away from the side support plate 521, and the mounting bracket 531 is directly fixedly connected to the side of the backrest 1.

[0032] Further, such as Figure 5 As shown, the lower end of the side support plate 521 is provided with a horizontal support portion 522 extending to the left side, and the upper end of the horizontal support portion 522 is formed with a mounting groove d, the center end of the fan-shaped tooth plate 42 is located in the mounting groove d, and the right end of the rotating shaft 32 passes through the left side wall of the mounting groove d, the fan-shaped tooth plate 42 and the right side wall of the mounting groove d in sequence, and there are retaining sleeves e abutting between the two sides of the fan-shaped tooth plate 42 and the two side walls of the mounting groove d, and the retaining sleeves e are mounted on the rotating shaft 32.

[0033] like Figure 4 and 6 As shown, in order to facilitate assembly, the support panel 31 is provided with a connecting block 311 at the position corresponding to the first support arm 33 and the second support arm 34, the end of the connecting block 311 is mounted on the retaining shaft 35, and a positioning groove b is provided in the middle of the connecting block 311, and the ends of the first support arm 33 and the second support arm 34 are provided with a positioning block a adapted to the positioning groove b. During assembly, the connecting block 311 of the support panel 31 is first mounted on the retaining shaft 35, and then the first support arm 33 and the second support arm 34 are installed from the end of the retaining shaft 35. The positioning block a on the first support arm 33 and the second support arm 34 is embedded in the positioning groove b along the axial direction of the retaining shaft 35, so as to realize the fixed connection between the support panel 31, the retaining shaft 35 and the corresponding first support arm 33 and the second support arm 34, so as to limit the support panel 31 from rotating forward and backward relative to the retaining shaft 35. In order to ensure the structural stability of the support assembly 3, a connecting portion 341 protruding toward the fan-shaped tooth plate 42 is provided on the second support arm 34, and the connecting portion 341 is welded to the side of the fan-shaped tooth plate 42, and the end of the retaining shaft 35 passes through the connecting block 311, the connecting portion 341 and the fan-shaped tooth plate 42 in sequence. After the product is assembled, the support panel 31, the first support arm 33, the second support arm 34, the retaining shaft 35 and the fan-shaped tooth plate 42 are fastened together, which can also ensure the stability of the engagement between the gear 41 and the fan-shaped tooth plate 42, thereby improving the smoothness of the transmission.

[0034] like Figure 2 , 4As shown in FIGS. 5 and 6 , the rotating shaft 11 is located at the rear side of the supporting panel 31 . In order to avoid the rotating shaft 11 when the mechanism is adjusted, an arc-shaped avoidance notch c is provided in the middle of the first supporting arm 33 , the second supporting arm 34 and the fan-shaped tooth plate 42 .

[0035] 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 manually adjustable seat buttocks rear support structure, comprising a backrest (1), characterized in that: A support assembly (3) is rotatably mounted on the lower end of the backrest (1); an operating component (2) is mounted on the backrest (1); a transmission component (4) is connected between the operating component (2) and the support assembly (3); and under the transmission action of the transmission component (4), the operating component (2) can control at least part of the support assembly (3) to move forward relative to the backrest (1); A bracket assembly (5) is fixedly provided at the lower part of the backrest (1), comprising a first component (51), a second component (52) and a third component (53) arranged in sequence along the width direction of the backrest (1); the support assembly (3) comprises a support panel (31) and a rotating shaft (32) fixedly provided at the lower part of the rear end of the support panel (31); both ends of the rotating shaft (32) are rotatably supported on the first component (51) and the second component (52); The second component (52) has a side support plate (521), the transmission assembly (4) comprises a gear transmission mechanism and a belt transmission mechanism respectively mounted on both sides of the side support plate (521), the gear transmission mechanism comprises a gear (41) and a sector tooth plate (42) meshing with each other, a first pulley (43) of the belt transmission mechanism is coaxially fixed to the operating component (2), a second pulley (44) is coaxially fixed to the gear (41), and the center position of the sector tooth plate (42) is fixedly sleeved on the rotating shaft (32); The front side of the support panel (31) is in an arc-shaped structure, and the two ends of the rear side are respectively fixedly mounted with a first support arm (33) and a second support arm (34), a retaining shaft (35) is fixedly arranged between the upper ends of the first support arm (33) and the second support arm (34), and the two ends of the rotating shaft (32) are respectively fixed to the lower ends of the first support arm (33) and the second support arm (34); A horizontal support portion (522) extending toward one side is provided at the lower end of the side support plate (521), a mounting groove (d) is formed at the upper end of the horizontal support portion (522), the center end of the sector-shaped tooth plate (42) is located in the mounting groove (d), and the end of the rotating shaft (32) passes through the sector-shaped tooth plate (42) and the side walls of the mounting groove (d).

2. The manually adjustable seat hip rear support structure according to claim 1, characterized in that: The belt transmission mechanism is located between the second component (52) and the third component (53); a mounting support (531) is provided on a side of the third component (53) away from the second component (52); the mounting support (531) is fixedly connected to a side of the backrest (1); the operating component (2) comprises a hand wheel (2a) located outside the backrest (1); a connecting shaft (2b) is provided on one side of the hand wheel (2a); the connecting shaft (2b) is rotatably supported on the second component (52) and the third component (53); and the first belt pulley (43) is fixedly sleeved on the connecting shaft (2b).

3. The manually adjustable seat hip rear support structure according to claim 1, characterized in that: The support panel (31) is provided with connecting blocks (311) at positions corresponding to the first supporting arm (33) and the second supporting arm (34); the end of the connecting block (311) is sleeved on the retaining shaft (35); a positioning groove (b) is provided in the middle of the connecting block (311); the ends of the first supporting arm (33) and the second supporting arm (34) are provided with positioning blocks (a) adapted to the positioning groove (b); the positioning blocks (a) can be embedded in the positioning groove (b) along the axial direction of the retaining shaft (35).

4. The manually adjustable seat buttocks rear support structure according to claim 3, characterized in that: The second support arm (34) is provided with a connecting portion (341) protruding towards the sector-shaped tooth plate (42), the connecting portion (341) being welded to the side surface of the sector-shaped tooth plate (42), and the end of the retaining shaft (35) passes through the connecting block (311), the connecting portion (341) and the sector-shaped tooth plate (42) in sequence.

5. The manually adjustable seat hip rear support structure according to claim 3, characterized in that: The lower end of the backrest (1) has a rotation axis (11) arranged along its width direction, and the rotation axis (11) is located on the rear side of the support panel (31). The first support arm (33), the second support arm (34) and the fan-shaped tooth plate (42) are all provided with an avoidance notch (c) adapted to the rotation axis (11).

6. The manually adjustable seat hip rear support structure according to claim 1, characterized in that: A retaining sleeve (e) is provided between the sector-shaped tooth plate (42) and the side walls of the mounting groove (d), and the retaining sleeve (e) is mounted on the rotating shaft (32).

Images