Height adjusting auxiliary tool for assembling automobile seat

By designing an auxiliary tooling for height adjustment in automotive seat assembly, the problem of existing tooling being unable to adjust seat height is solved by utilizing the meshing of adjusting gears and racks. This enables flexible adjustment of seat height, reduces the physical fatigue of assembly personnel, and improves assembly efficiency and safety.

CN223834484UActive Publication Date: 2026-01-27WUHAN TIANCHENG AUTOMOTIVE SEAT CO LTD
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Patent Information

Application Number
CN202520319364.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-26
Publication Date
2026-01-27
Estimated Expiration
2035-02-26

AI Technical Summary

Technical Problem

Existing automotive seat assembly fixtures lack height adjustment functionality, forcing assembly workers to frequently change their posture while working, leading to lumbar muscle strain.

Method used

A height adjustment auxiliary fixture including a fixed frame, a support component, and an adjustment component was designed. By adjusting the meshing of the gear and rack, the adjustment drive component drives the adjustment gear to rotate, thereby driving the adjustment rack to rise and fall, thus adjusting the seat height synchronously and avoiding bending or squatting movements.

Benefits of technology

The seat height can be flexibly adjusted, reducing the physical fatigue of assembly workers, avoiding lumbar muscle strain, and improving assembly efficiency and safety.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a height adjustment auxiliary tool used for automobile seat assembly, the auxiliary tool comprises a fixing frame, a supporting assembly and an adjusting assembly, the supporting assembly comprises a supporting bottom plate, a supporting cylinder and a supporting plate, the adjusting assembly comprises an adjusting gear, an adjusting rack and an adjusting driving piece, and the adjusting gear is connected with the supporting cylinder. The supporting cylinder is installed on the supporting bottom plate, the adjusting gear is rotatably connected to the interior of the supporting cylinder, the adjusting rack is slidably connected to the inner wall of the supporting cylinder and engaged with the adjusting gear, the supporting plate is located above the supporting cylinder, and the bottom of the supporting plate is fixedly connected with the adjusting rack; the adjusting driving part is connected with the adjusting gear to drive the adjusting gear to rotate, and the fixing frame is fixed to the top of the supporting plate to enable a seat to be installed and fixed.
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Description

Technical Field

[0001] This utility model relates to the field of automotive seat assembly technology, and more specifically to an auxiliary tooling for height adjustment in automotive seat assembly. Background Technology

[0002] In the assembly of automobile seats, assembly fixtures are needed to fix the seat back. Then, angle adjusters, slide rails, and foam padding are installed on the back. Since the installation positions of each operation are different, and the existing assembly fixtures lack height adjustment functions, the assemblers need to perform the assembly in different postures. For example, the parts at the top of the backrest are installed standing up, while the parts at the bottom of the backrest are installed by bending over or squatting. Long-term operation will cause lumbar muscle strain for the assemblers. In view of this, this utility model is proposed. Utility Model Content

[0003] To address the problem that existing seat assembly fixtures cannot adjust the seat back height, this utility model provides an auxiliary fixture for height adjustment in automotive seat assembly.

[0004] To solve the above-mentioned technical problems, this utility model provides an auxiliary tooling for height adjustment in automotive seat assembly. The auxiliary tooling includes a fixing frame, a support assembly, and an adjustment assembly. The support assembly includes a support base plate, a support cylinder, and a support plate. The adjustment assembly includes an adjustment gear, an adjustment rack, and an adjustment drive component. The support cylinder is mounted on the support base plate. The adjustment gear is rotatably connected to the inside of the support cylinder. The adjustment rack is slidably connected to the inner wall of the support cylinder and meshes with the adjustment gear. The support plate is located above the support cylinder and its bottom is fixedly connected to the adjustment rack. The adjustment drive component is connected to the adjustment gear to drive the adjustment gear to rotate. The fixing frame is fixed to the top of the support plate for seat installation and fixation.

[0005] In an embodiment of this utility model, two sets of adjusting gears and two sets of adjusting racks are provided. The two sets of adjusting racks are symmetrically arranged on both sides of the inner wall of the support cylinder, and the tops of the two sets of adjusting racks are fixedly connected to the support plate. The inner sides of the two sets of adjusting gears mesh with each other, and the outer sides of the two sets of adjusting gears mesh with the adjusting racks on both sides respectively.

[0006] In an embodiment of this utility model, the support cylinder is rotatably connected to the support base plate. The adjustment assembly further includes a first clutch gear, a second clutch gear, a first reversing gear, a second reversing gear, a rotating gear, and an internal gear ring. The first clutch gear is coaxially arranged with one of the adjustment gears. The second clutch gear is located below the first clutch gear and meshes with the first clutch gear. The first reversing gear is coaxially arranged with the second clutch gear. The second reversing gear is coaxially arranged with the rotating gear. The internal gear ring is fixed to the support base plate, and the rotating gear meshes with the internal gear ring.

[0007] In an embodiment of this utility model, a protruding support seat is provided inside the support cylinder, and the support seat is rotatably connected to the shaft between the second reversing gear and the rotating gear.

[0008] In an embodiment of this utility model, the adjusting assembly further includes a fixed shaft and a sliding shaft. The first clutch gear is fixed on the sliding shaft, and one of the adjusting gears is fixed on the fixed shaft. One end of the sliding shaft is inserted into the fixed shaft, and the other end extends out of the support cylinder and can move axially relative to the fixed shaft to drive the first clutch gear and the second clutch gear to mesh or disengage.

[0009] In an embodiment of this utility model, a spline is provided on the sliding shaft, and a keyway is provided inside the fixed shaft. The sliding shaft and the fixed shaft are connected by the spline and the keyway.

[0010] In an embodiment of this utility model, an annular groove is provided at the bottom of the support cylinder, and an annular slide rail is provided at the bottom of the support base plate. The support cylinder is rotatably connected to the support base plate through the annular groove and the annular slide rail.

[0011] In an embodiment of this utility model, the support assembly further includes a corrugated cover, the diameter of which is adapted to the diameter of the support cylinder, and both ends are fixedly connected to the support cylinder and the support plate, respectively.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] By adjusting the drive component to drive the adjustment gear to rotate and drive the adjustment rack to rise and fall, the seat will rise and fall synchronously when the adjustment rack rises and falls. This allows the operator to adjust the height of the seat when performing seat assembly work without having to bend over or squat, thus avoiding physical illness caused by long-term work. Attached Figure Description

[0014] The accompanying drawings are provided to further illustrate the embodiments of the present invention and form part of the specification. They are used together with the following detailed description to explain the embodiments of the present invention, but do not constitute a limitation thereof. In the drawings:

[0015] Figure 1 This is a three-dimensional structural schematic diagram of the detection device provided in this embodiment of the utility model;

[0016] Figure 2 This is a partial exploded structural diagram of the detection device provided in this embodiment of the present invention;

[0017] Figure 3 yes Figure 2 Enlarged view of point A in the image;

[0018] Figure 4 yes Figure 2 Enlarged view of point B in the image.

[0019] Explanation of reference numerals in the attached figures

[0020] 1. Auxiliary tooling; 2. Seat; 11. Fixture; 12. Support assembly; 13. Adjustment assembly; 121. Support base plate; 122. Support cylinder; 123. Support plate; 124. Support seat; 125. Circular slide rail; 126. Corrugated cover; 1301. Adjusting gear; 1302. Adjusting rack; 1303. Adjustment drive component; 1304. First clutch gear; 1305. Second clutch gear; 1306. First reversing gear; 1307. Second reversing gear; 1308. Rotary gear; 1309. Internal gear ring; 1310. Fixed shaft. Detailed Implementation

[0021] The specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the scope of this utility model.

[0022] Please see Figures 1-4To address the problems in the prior art, this utility model provides an auxiliary tooling 1 for height adjustment in automotive seat assembly. The auxiliary tooling 1 includes a fixing frame 11, a support assembly 12, and an adjustment assembly 13. The support assembly 12 includes a support base plate 121, a support cylinder 122, and a support plate 123. The adjustment assembly 13 includes an adjustment gear 1301, an adjustment rack 1302, and an adjustment drive component 1303. The support cylinder 122 is mounted on the support base plate 121. The adjustment gear 1301 is rotatably connected to the inside of the support cylinder 122. The adjustment rack 1302 is slidably connected to the inner wall of the support cylinder 122 and meshes with the adjustment gear 1301. The support plate 123 is located above the support cylinder 122 and its bottom is fixedly connected to the adjustment rack 1302. The adjustment drive component 1303 is connected to the adjustment gear 1301 to drive the adjustment gear 1301 to rotate. The fixing frame 11 is fixed to the top of the support plate 123 for mounting and fixing the seat 2.

[0023] By fixing the support base plate 121 to the ground for the support cylinder 122 to be fixedly connected, and by setting the adjustment component 13 inside the support cylinder 122 and connecting it to the support plate 123, the seat 2 can be placed on the fixing frame 11 before assembly, so that the fixing frame 11 can fix the seat 2. This makes it convenient for the operator to assemble the fixed seat 2. Since the adjustment drive component 1303 is connected to the adjustment gear 1301 and the adjustment gear 1301 meshes with the adjustment rack 1302, the adjustment drive component 1303 can drive the adjustment gear 1301 to rotate and drive the adjustment rack 1302 to rise and fall. Since the support plate 123 is fixedly connected to the adjustment rack 1302 and the fixing frame 11 is fixed on the support plate 123, the seat 2 will rise and fall synchronously when the adjustment rack 1302 rises and falls. This makes it convenient for the operator to adjust the height of the seat 2 during assembly without having to bend over or squat, thus avoiding physical illness caused by long-term work.

[0024] Please see Figure 2 and Figure 3In this embodiment of the invention, two sets of adjusting gears 1301 and adjusting racks 1302 are provided. The two sets of adjusting racks 1302 are symmetrically arranged on both sides of the inner wall of the support cylinder 122, and the tops of the two sets of adjusting racks 1302 are fixedly connected to the support plate 123 to support the support plate 123 under the action of the two adjusting racks 1302, thereby improving the stability of the support plate 123 when it is raised and lowered. The inner sides of the two sets of adjusting gears 1301 mesh with each other, and the outer sides of the two sets of adjusting gears 1301 mesh with the adjusting racks 1302 on both sides respectively, so that the adjusting drive 1303 drives one of the adjusting gears. When 1301 rotates, it drives another adjusting gear 1301 to rotate, and at the same time, the adjusting racks 1302 on both sides rise and fall under the rotation of the corresponding adjusting gears 1301. When the right adjusting gear 1301 rotates clockwise, it drives the left adjusting gear 1301 to rotate counterclockwise. At the same time, the right adjusting gear 1301 drives the right adjusting gear 1301 to fall, and the left adjusting gear 1301 drives the left adjusting gear 1301 to fall when it rotates counterclockwise. That is, the two adjusting racks 1302 rise and fall synchronously to adjust the height of the support plate 123 and improve the stability of the support plate 123 when it rises and falls.

[0025] Please see Figure 3 and Figure 4 In this embodiment of the present invention, the support cylinder 122 is rotatably connected to the support base plate 121. The adjustment assembly 13 further includes a first clutch gear 1304, a second clutch gear 1305, a first reversing gear 1306, a second reversing gear 1307, a rotating gear 1308, and an internal gear ring 1309. The first clutch gear 1304 is coaxially arranged with one of the adjustment gears 1301. The second clutch gear 1305 is located below the first clutch gear 1304 and meshes with the first clutch gear 1304. The first reversing gear 1306 is coaxially arranged with the second clutch gear 1305. The second reversing gear 1307 is coaxially arranged with the rotating gear 1308. The internal gear ring 1309 is fixed on the support base plate 121, and the rotating gear 1308 meshes with the internal gear ring 1309.

[0026] When the adjusting drive 1303 drives the adjusting gear 1301 to rotate, it can drive the first clutch gear 1304 to rotate synchronously. The second clutch gear 1305 rotates synchronously under the meshing of the first clutch gear 1304. Since the second clutch gear 1305 is coaxially arranged with the first reversing gear 1306, the rotation of the second clutch gear 1305 drives the first reversing gear 1306 to rotate. Since the first reversing gear 1306 and the second reversing gear 1307 are meshed, the first reversing gear 1306 rotates. The second reversing gear 1307 rotates. Since the second reversing gear 1307 and the rotating gear 1308 are coaxially arranged, the rotating gear 1308 and the second reversing gear 1307 can rotate synchronously. Since the rotating gear 1308 meshes with the internal gear ring 1309, the rotating gear 1308 can rotate around the internal gear ring 1309 and drive the support cylinder 122 to rotate on the support base plate 121, while driving the seat 2 to rotate. This makes it easier for operators to assemble parts at different positions of the seat 2 and improves work efficiency.

[0027] In an embodiment of this utility model, a protruding support seat 124 is provided inside the support cylinder 122. The support seat 124 is rotatably connected to the shaft between the second reversing gear 1307 and the rotating gear 1308, so that the shaft provides support for the second reversing gear 1307 and the rotating gear 1308, thereby enabling the support cylinder 122 to rotate on the support base plate 121.

[0028] In an embodiment of this utility model, the adjusting component 13 further includes a fixed shaft 1310 and a sliding shaft. The first clutch gear 1304 is fixed on the sliding shaft, and one of the adjusting gears 1301 is fixed on the fixed shaft 1310. One end of the sliding shaft is inserted into the fixed shaft 1310, and the other end extends out of the support cylinder 122 and can move axially relative to the fixed shaft 1310 to drive the first clutch gear 1304 and the second clutch gear 1305 to mesh or disengage.

[0029] When the first clutch gear 1304 and the second clutch gear 1305 are engaged, the first clutch gear 1304 can rotate and drive the second clutch gear 1305 to rotate synchronously, thereby causing the support cylinder 122 to rotate on the support base plate 121. That is, when the adjusting drive component 1303 drives the adjusting gear 1301 to raise and lower the support plate 123, it can simultaneously drive the support cylinder 122 to rotate, so that the operator can assemble parts on different surfaces and at different heights of the seat 2. By pulling the sliding shaft, the first clutch gear 1304 and the second clutch gear 1305 are separated. At this time, when the adjusting drive component 1303 drives the adjusting gear 1301 to rotate, it only drives the support plate 123 to raise and lower to adjust the height of the seat 2, while the angle of the support cylinder 122 on the support base plate 121 remains unchanged, which facilitates the operator to assemble parts on different heights of the same surface of the seat 2.

[0030] In an embodiment of this utility model, a spline is provided on the sliding shaft, and a keyway is provided in the fixed shaft 1310. The sliding shaft and the fixed shaft 1310 are connected by the spline and the keyway, so that when the fixed shaft 1310 rotates, it drives the sliding shaft to rotate synchronously. At the same time, the sliding shaft can be pulled to drive the first clutch gear 1304 to move axially, so that the first clutch gear 1304 and the second clutch gear 1305 can mesh or disengage, thereby realizing the adjustment of the height of the seat 2 and the simultaneous adjustment of height and angle.

[0031] In an embodiment of this utility model, the bottom of the support cylinder 122 is provided with an annular groove, and the bottom of the support base plate 121 is provided with an annular slide rail 125. The support cylinder 122 is rotatably connected to the support base plate 121 through the annular groove and the annular slide rail 125, so that when the rotating gear 1308 rotates, it rotates around the internal gear ring 1309, thereby driving the support cylinder 122 to rotate on the support base plate 121, and guiding and limiting the rotation of the support cylinder 122 with the cooperation of the annular groove and the annular slide rail 125.

[0032] In an embodiment of this utility model, the support assembly 12 further includes a corrugated cover 126. The diameter of the corrugated cover 126 is adapted to the diameter of the support cylinder 122, and both ends are fixedly connected to the support cylinder 122 and the support plate 123, respectively, so as to protect the adjustment assembly 13 from dust under the action of the corrugated cover 126. At the same time, the corrugated cover 126 can be deformed when the support plate 123 is raised and lowered, so that the corrugated cover 126 always plays a dustproof role for the adjustment assembly 13, thereby improving the service life of the auxiliary tooling 1.

[0033] In this utility model, unless otherwise explicitly specified and limited, the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. "Above" or "below" the second feature can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, "above," "on top," and "on the surface" can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature, and therefore should not be construed as a limitation of this utility model.

[0034] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings; however, the present invention is not limited thereto. Within the scope of the technical concept of the present invention, various simple modifications can be made to the technical solution of the present invention, including the combination of various specific technical features in any suitable manner. To avoid unnecessary repetition, the present invention will not describe the various possible combinations separately. However, these simple modifications and combinations should also be considered as the content disclosed in the present invention and are all within the protection scope of the present invention.

[0035] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A height adjustment auxiliary tooling for assembling automobile seats, characterized in that, The auxiliary fixture includes a fixed frame, a support assembly, and an adjustment assembly. The support assembly includes a support base plate, a support cylinder, and a support plate. The adjustment assembly includes an adjustment gear, an adjustment rack, and an adjustment drive component. The support cylinder is mounted on the support base plate. The adjustment gear is rotatably connected to the inside of the support cylinder. The adjustment rack is slidably connected to the inner wall of the support cylinder and meshes with the adjustment gear. The support plate is located above the support cylinder and its bottom is fixedly connected to the adjustment rack. The adjustment drive component is connected to the adjustment gear to drive the adjustment gear to rotate. The fixed frame is fixed to the top of the support plate for seat installation and fixation.

2. The height adjustment auxiliary tooling for assembling automobile seats according to claim 1, characterized in that, Both the adjusting gear and the adjusting rack are provided in two sets. The two sets of adjusting racks are symmetrically arranged on both sides of the inner wall of the support cylinder, and the top of the two sets of adjusting racks are fixedly connected to the support plate. The inner sides of the two sets of adjusting gears mesh with each other, and the outer sides of the two sets of adjusting gears mesh with the adjusting racks on both sides respectively.

3. The height adjustment auxiliary tooling for assembling automobile seats according to claim 2, characterized in that, The support cylinder is rotatably connected to the support base plate. The adjustment assembly further includes a first clutch gear, a second clutch gear, a first reversing gear, a second reversing gear, a rotating gear, and an internal gear ring. The first clutch gear is coaxially arranged with one of the adjustment gears. The second clutch gear is located below the first clutch gear and meshes with the first clutch gear. The first reversing gear is coaxially arranged with the second clutch gear. The second reversing gear is coaxially arranged with the rotating gear. The internal gear ring is fixed to the support base plate, and the rotating gear meshes with the internal gear ring.

4. The height adjustment auxiliary tooling for assembling automobile seats according to claim 3, characterized in that, The support cylinder has a protruding support seat inside, and the support seat is rotatably connected to the shaft between the second reversing gear and the rotating gear.

5. The height adjustment auxiliary tooling for assembling automobile seats according to claim 3, characterized in that, The adjustment assembly further includes a fixed shaft and a sliding shaft. The first clutch gear is fixed on the sliding shaft, and one of the adjustment gears is fixed on the fixed shaft. One end of the sliding shaft is inserted into the fixed shaft, and the other end extends out of the support cylinder and can move axially relative to the fixed shaft to drive the first clutch gear and the second clutch gear to engage or disengage.

6. The height adjustment auxiliary tooling for assembling automobile seats according to claim 5, characterized in that, The sliding shaft is provided with a spline, and the fixed shaft is provided with a keyway. The sliding shaft and the fixed shaft are connected by the spline and the keyway.

7. The height adjustment auxiliary tooling for assembling automobile seats according to claim 3, characterized in that, The bottom of the support cylinder is provided with an annular groove, and the bottom of the support base plate is provided with an annular slide rail. The support cylinder is rotatably connected to the support base plate through the annular groove and the annular slide rail.

8. The height adjustment auxiliary tooling for assembling automobile seats according to claim 1, characterized in that, The support assembly also includes a corrugated cover, the diameter of which is adapted to the diameter of the support cylinder, and both ends of which are fixedly connected to the support cylinder and the support plate, respectively.