Manual adjustment mechanism for the width of the car seat wing

Abstract

The present invention discloses a manual adjustment mechanism for the width of a wing of a car seat, comprising a left adjustment mechanism assembly, a right adjustment mechanism assembly, a cable assembly and a manual drive assembly; the left adjustment mechanism assembly is connected to the left side plate of the seat frame and contacts the left wing of the seat, the right adjustment mechanism assembly is connected to the right side plate of the seat frame and contacts the right wing of the seat, and the left adjustment mechanism assembly and the right adjustment mechanism assembly are also connected to the cable assembly; the manual drive assembly is installed on the left adjustment mechanism assembly, the manual drive assembly is connected to the cable assembly, and can pull the cable assembly to move, thereby driving the left adjustment mechanism assembly and the right adjustment mechanism assembly connected to the cable assembly to move synchronously. The adjustment mechanism can adjust the width between the wing on both sides of the car seat, can meet the diverse body shapes of passengers and people's requirements for seat comfort, and make the seat more humane.

Description

Technical Field

[0001] The invention relates to an automobile seat adjustment device, in particular to a manual adjustment mechanism for the width of a wing of an automobile seat. Background Art

[0002] Currently, in the design of automobile seat products, the side wing frames of the seat back are usually fixed and cannot be adjusted, resulting in the width between the left and right wings being fixed and cannot be adjusted, which greatly reduces the comfort of the seat.

[0003] Due to the diversity of occupants' body shapes and their increasing requirements for seat comfort, the seat frame with a conventional fixed side wing structure design can no longer meet the requirements of various occupants because the side wing width cannot be adjusted. At the same time, during vehicle driving, the seat may reduce the restraint on the user, making it easy for the user to fall out of the seat and create danger. There is room for improvement. Summary of the invention

[0004] The purpose of the present invention is to provide a manual adjustment mechanism for the width of the side wings of a car seat, which can adjust the width between the side wings on both sides of the car seat, so as to meet the diverse body shapes of occupants and people's requirements for seat comfort, making the seat more humane.

[0005] The above-mentioned purpose of the present invention is achieved through the following technical scheme: a manual adjustment mechanism for the width of a car seat wing, characterized in that: the adjustment mechanism includes a left adjustment mechanism assembly, a right adjustment mechanism assembly, a cable assembly and a manual drive assembly; the left adjustment mechanism assembly is connected to the left side plate of the seat frame and contacts the left side wing of the seat, the right adjustment mechanism assembly is connected to the right side plate of the seat frame and contacts the right side wing of the seat, and the left adjustment mechanism assembly and the right adjustment mechanism assembly are also connected to the cable assembly; the manual drive assembly is installed on the left adjustment mechanism assembly, the manual drive assembly is connected to the cable assembly, and can pull the cable assembly to move, thereby driving the left adjustment mechanism assembly and the right adjustment mechanism assembly connected to the cable assembly to move synchronously, and the left adjustment mechanism assembly and the right adjustment mechanism assembly will push the side wings on both sides of the seat when they are in action to compress the foaming of the side wings, thereby achieving the purpose of adjusting the width between the side wings on both sides.

[0006] In the present invention, the left adjustment mechanism assembly and the right adjustment mechanism assembly have the same structure and are symmetrically arranged; the left adjustment mechanism assembly comprises a left fixed plate, a left rotating shaft, a left adjustment plate and a left return spring; the left fixed plate is fixedly mounted on the left side plate of the seat frame; the left adjustment plate is hinged to the left fixed plate through the left rotating shaft using the hinge principle; the two ends of the left return spring are respectively connected to the left adjustment plate and the left fixed plate for resetting the left adjustment plate; the left adjustment plate is in contact with the left side wing of the seat; the left adjustment plate can rotate around the left side under external force. The rotating shaft rotates, thereby compressing the foam of the left wing; the right adjustment mechanism assembly includes a right fixed plate, a right rotating shaft, a right adjustment plate and a right return spring, the right fixed plate is fixedly installed on the right side plate of the seat frame, the right adjustment plate is hinged to the right fixed plate through the right rotating shaft using the hinge principle, the two ends of the right return spring are respectively connected to the right adjustment plate and the right fixed plate, and are used to reset the right adjustment plate, the right adjustment plate is in contact with the right side wing of the seat, and the right adjustment plate can rotate around the right rotating shaft under the pull of external force, thereby compressing the foam of the right wing.

[0007] The two ends of the left return spring are respectively connected to the left adjustment plate and the left fixed plate; the two ends of the right return spring are respectively connected to the right adjustment plate and the right fixed plate. The return spring is used for resetting the adjustment plate. Resetting the adjustment plate eliminates the pushing pressure on the side wing, and the side wing foams and recovers.

[0008] In the present invention, the cable assembly includes a main drive cable, a left cable and a right cable, and the main drive cable, the left cable and the right cable are all steel cables. The head end of the main drive cable is connected to the manual drive assembly, and the head end is provided with a cable sleeve, and the cable sleeve is clamped on the left fixed plate. The tail end of the main drive cable is connected to the left cable and the right cable, and the main drive cable can pull the left cable and the right cable at the same time; the left cable and the right cable are respectively connected to the left adjustment plate and the right adjustment plate, driving the left adjustment plate and the right adjustment plate to rotate around their respective rotation axes.

[0009] As an improvement of the present invention: a cable junction cylinder is provided at the connection between the main drive cable and the left cable and the right cable, and the cable junction cylinder is fixedly installed on the seat frame. The connecting ends of the main drive cable connected to the left cable and the right cable are both built into the cable junction cylinder, and the main drive cable is connected to the left cable and the right cable at the same time.

[0010] In the present invention, the manual drive assembly comprises an operating knob and a gear rack drive unit, and the gear rack drive unit is connected to the operating knob and the main drive cable respectively.

[0011] The gear and toothed plate driving unit comprises a driving rod, a driving gear and a toothed plate; the driving rod is inserted through the left fixed plate, the outer end of the driving rod is fitted with the operating knob, and the driving gear is fitted with the inner end of the driving rod; the toothed plate is hinged on the inner side of the left fixed plate, the toothed plate has a tooth portion, which is meshed with the driving gear through the tooth portion, and the toothed plate is also connected to the head end of the main driving cable; when the operating knob is rotated, the driving gear is driven to rotate, and the driving gear then drives the meshing toothed plate to rotate, and when the toothed plate rotates, it pulls the main driving cable to move.

[0012] In the present invention, the outer end of the driving rod sleeved with the operating knob is a spline shaft, and the operating knob sleeved with the driving rod and fixed on the spline shaft of the driving rod through a retaining spring.

[0013] A hinge hole is formed at one end of the tooth plate away from the tooth portion, a bushing and a rivet are installed in the hinge hole, the rivet is riveted to the left fixed plate, and the tooth plate is hinged to the inner side of the left fixed plate through the rivet and the bushing.

[0014] As an improvement of the present invention: the gear rack drive unit also includes a limit assembly, which includes a waist groove opened on the rack and a limit pin passing through the waist groove and fixedly connected to the left fixed plate, the waist groove is an arc groove, and the waist groove and the limit pin are used to limit the rotation angle of the rack, that is, to limit the moving distance of the main drive cable.

[0015] The manual adjustment mechanism of the present invention can drive the driving rod to drive the gear plate structure on the gear plate driving unit by adjusting the operating knob, and then drive the adjustment plate on the adjustment mechanism through the cable to adjust the seat wing width.

[0016] The manual adjustment mechanism can provide a certain stroke by introducing a lightweight and simple gear plate mechanism, so that the width between the seat side wings can be adjusted. The width can be adjusted by about 10 cm, thereby adapting to diverse user body shapes and needs, achieving a more optimized occupant covering effect, improving the comfort experience, and meeting the occupants' growing functional needs for seat comfort. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0018] Figure 1 It is an assembly diagram of the manual adjustment mechanism for the width of the wing of the automobile seat of the present invention installed on the seat frame;

[0019] Figure 2 It is a schematic diagram of the overall structure of the manual adjustment mechanism for the width of the wing of the automobile seat of the present invention;

[0020] Figure 3It is an exploded view of the manual adjustment mechanism for the width of the wing of the automobile seat of the present invention;

[0021] Figure 4 The present invention is a schematic diagram of the movement principle of the manual adjustment mechanism for the width of the wing of the automobile seat.

[0022] In the figure:

[0023] 100. seat frame, 101. left side plate assembly, 102. right side plate assembly, 110. left adjustment mechanism assembly, 111. left fixed plate, 112. left rotating shaft, 113. left adjustment plate, 114. left return spring, 120. right adjustment mechanism assembly, 121. right fixed plate, 122. right rotating shaft, 123. right adjustment plate, 124. right return spring, 130. cable assembly, 131. main drive cable, 132. left cable, 133. right cable, 134. cable sleeve, 135. cable junction cylinder, 140. manual drive assembly, 141. operating knob, 142. drive rod, 143. retaining spring, 144. tooth plate, 145. bushing, 146. rivet, 147. limit pin, 148. drive gear, 149. waist groove. DETAILED DESCRIPTION

[0024] like Figures 1 to 4 The manual adjustment mechanism for the width of the side wing of the automobile seat shown in the figure comprises a left adjustment mechanism assembly 110, a right adjustment mechanism assembly 120, a cable assembly 130 and a manual drive assembly 140; the left adjustment mechanism assembly 110 is connected to the left side plate of the seat frame 100 and contacts the left side wing of the seat, the right adjustment mechanism assembly 120 is connected to the right side plate of the seat frame 100 and contacts the right side wing of the seat, and the left adjustment mechanism assembly 110 and the right adjustment mechanism assembly 120 are also connected to the cable assembly 130. The manual drive assembly 140 is installed on the left adjusting mechanism assembly 110, and the manual drive assembly 140 is connected to the cable assembly 130, and can pull the cable assembly 130 to move, thereby driving the left adjusting mechanism assembly 110 and the right adjusting mechanism assembly 120 connected to the cable assembly 130 to move synchronously. When the left adjusting mechanism assembly 110 and the right adjusting mechanism assembly 120 move, they push the side wings on both sides of the seat to compress the foaming of the side wings, thereby achieving the purpose of adjusting the width between the side wings on both sides.

[0025] In this embodiment, the left adjustment mechanism assembly 110 and the right adjustment mechanism assembly 120 have the same structure and are symmetrically arranged; the left adjustment mechanism assembly 110 includes a left fixed plate 111, a left rotating shaft 112, a left adjustment plate 113 and a left return spring 114. The left fixed plate 111 is fixedly installed on the left side plate of the seat frame 100. The left adjustment plate 113 is hinged to the left fixed plate 111 through the left rotating shaft 112 using the hinge principle. The two ends of the left return spring 114 are respectively connected to the left adjustment plate 113 and the left fixed plate 111, and the adjustment plate and the fixed plate are hung by a spring hook for resetting the left adjustment plate 113. The left adjustment plate 113 is in contact with the left side wing of the seat. The left adjustment plate 113 can rotate around the left rotating shaft 112 under the pull of external force, thereby compressing the foaming of the left wing.

[0026] The right adjustment mechanism assembly 120 includes a right fixed plate 121, a right rotating shaft 122, a right adjustment plate 123 and a right return spring 124. The right fixed plate 121 is fixedly mounted on the right side plate of the seat frame 100. The right adjustment plate 123 is hinged to the right fixed plate 121 through the right rotating shaft 122 using the hinge principle. The two ends of the right return spring 124 are respectively connected to the right adjustment plate 123 and the right fixed plate 121. The adjustment plate and the fixed plate are hung by spring hooks for resetting the right adjustment plate 123. The right adjustment plate 123 is in contact with the right side wing of the seat. The right adjustment plate 123 can rotate around the right rotating shaft 122 under the pull of external force, thereby compressing the foaming of the right wing. The return spring is used for resetting the adjustment plate. Resetting the adjustment plate eliminates the pushing pressure on the side wing, and the foaming of the side wing recovers.

[0027] In this embodiment, the cable assembly 130 is divided into three sections of cables, including a main drive cable 131, a left cable 132 and a right cable 133. The main drive cable 131, the left cable 132 and the right cable 133 are all steel cables. The head end of the main drive cable 131 is connected to the manual drive assembly 140, and the head end is provided with a cable sleeve 134, which is clamped on the left fixed plate 111. The tail end of the main drive cable 131 is connected to the left cable 132 and the right cable 133. The main drive cable 131 can pull the left cable 132 and the right cable 133 at the same time; the left cable 132 and the right cable 133 are respectively connected to the left adjustment plate 113 and the right adjustment plate 123, driving the left adjustment plate 113 and the right adjustment plate 123 to rotate around their respective rotation axes.

[0028] As a preferred embodiment, a cable junction cylinder 135 is provided at the connection between the main drive cable 131 and the left cable 132 and the right cable 133. The cable junction cylinder 135 is fixedly mounted on the seat frame 100. The connecting ends of the main drive cable 131 and the left cable 132 and the right cable 133 are both built into the cable junction cylinder 135, and the main drive cable 131 is connected to the left cable 132 and the right cable 133 at the same time.

[0029] In this embodiment, the manual drive assembly 140 includes an operating knob 141 and a gear rack drive unit, and the gear rack drive unit is connected to the operating knob 141 and the main drive cable 131 respectively.

[0030] In this embodiment, the gear rack drive unit includes a drive rod 142, a drive gear 148 and a rack 144; the drive rod 142 is inserted into the left fixed plate 111, the outer end of the drive rod 142 is fitted with the operating knob 141, and the drive gear 148 is fitted with the inner end of the drive rod 142; the rack 144 is hinged on the inner side of the left fixed plate 111, and the rack 144 has a tooth portion, which is meshed with the drive gear 148 through the tooth portion, and the rack 144 is also connected to the head end of the main drive cable 131; when the operating knob 141 rotates, it drives the drive gear 148 to rotate, and the drive gear 148 drives the meshing rack 144 to rotate, and when the rack 144 rotates, it pulls the main drive cable 131 to move.

[0031] The gear tooth plate drive is adopted, and the transmission is precise, which can ensure the accurate adjustment of the width between the side wings. At the same time, there is a large meshing force between the driving gear 148 and the tooth plate 144. The meshing force is smaller than the driving force applied by the operating knob 141 through the driving rod 142, so that the operating knob 141 can drive the gear tooth plate to rotate; at the same time, the meshing force is greater than the reverse thrust pressure of the side wing on the adjustment plate, so that during the width adjustment process of the side wing, the reverse thrust pressure of the side wing on the adjustment plate will not drive the gear tooth plate to rotate in the opposite direction, so that the side wing can be stably positioned at a certain position after being adjusted to that position.

[0032] In this embodiment, the outer end of the driving rod 142 fitted with the operating knob 141 is a spline shaft, and the operating knob 141 is fitted with the driving rod 142 and fixed on the spline shaft of the driving rod 142 through a retaining ring 143. A hinge hole is provided at one end of the tooth plate 144 away from the tooth portion, and a bushing 145 and a rivet 146 are installed in the hinge hole. The rivet 146 is riveted to the left fixed plate 111, and the tooth plate 144 is hinged to the inner side of the left fixed plate 111 through the rivet 146 and the bushing 145.

[0033] As a preferred embodiment, the gear rack drive unit also includes a limit assembly, which includes a waist groove 149 opened on the rack 144 and a limit pin 147 passing through the waist groove 149 and fixedly connected to the left fixed plate 111. The waist groove 149 is an arc-shaped groove. The waist groove 149 and the limit pin 147 are used to limit the rotation angle of the rack 144, that is, to limit the moving distance of the main drive cable 131.

[0034] The specific adjustment process of the manual adjustment mechanism of the present invention is as follows: by rotating the operating knob 141, the driving rod 142 rotates under the action of the operating knob 141, driving the driving gear 148 mounted on the driving rod 142 to rotate, the tooth plate 144 meshes with the driving gear 148 through the teeth, and the driving gear 148 rotates and drives the tooth plate 144 to rotate, and the tooth plate 144 pulls the main driving cable 131 connected thereto when rotating, and the main driving cable 131 pulls the left cable 132 and the right cable 133 at the same time, and the left and right cables respectively drive the left adjustment plate 113 and the right adjustment plate 123 to rotate around their respective rotation axes, and the side wings on both sides of the seat are pushed by the adjustment plate to compress the foaming of the side wings, so as to achieve the purpose of adjusting the width between the side wings on both sides. The waist groove 149 provided on the tooth plate 144, and the limit pin 147 provided in the waist groove 149, can play the role of the limit position stop, limit the rotation angle of the tooth plate 144, that is, limit the moving stroke of the main driving cable 131. At the same time, the return spring can help the adjustment plate return to its original position. The adjustment plate reset eliminates the pushing force on the side wing, and the side wing foam returns to an uncompressed state.

[0035] The above embodiments of the present invention are not intended to limit the protection scope of the present invention, and the implementation modes of the present invention are not limited thereto. All other modifications, replacements or changes made to the above structures of the present invention based on the above contents of the present invention, in accordance with common technical knowledge and customary means in the art, without departing from the above basic technical ideas of the present invention, should fall within the protection scope of the present invention.

Claims

1. A manual adjustment mechanism for the width of a car seat wing, characterized in that: The adjustment mechanism comprises a left adjustment mechanism assembly (110), a right adjustment mechanism assembly (120), a cable assembly (130) and a manual drive assembly (140); the left adjustment mechanism assembly (110) is connected to the left side plate of the seat frame (100) and contacts the left side wing of the seat, the right adjustment mechanism assembly (120) is connected to the right side plate of the seat frame (100) and contacts the right side wing of the seat, and the left adjustment mechanism assembly (110) and the right adjustment mechanism assembly (120) are also connected to the cable assembly (130); the manual drive assembly (140) is mounted on the left adjustment mechanism assembly (110), and the manual drive assembly (140) is connected to the cable assembly The left adjusting mechanism assembly (110) and the right adjusting mechanism assembly (120) are connected to the seat frame and can pull the cable assembly (130) to move, thereby driving the left adjusting mechanism assembly (110) and the right adjusting mechanism assembly (120) connected to the cable assembly (130) to move synchronously. When the left adjusting mechanism assembly (110) and the right adjusting mechanism assembly (120) are in motion, they push the side wings on both sides of the seat to compress the foaming of the side wings, thereby achieving the purpose of adjusting the width between the side wings on both sides. The left adjusting mechanism assembly (110) and the right adjusting mechanism assembly (120) have the same structure and are symmetrically arranged. The left adjusting mechanism assembly (110) includes a left fixed plate (111), a left rotating shaft (112), a left adjusting plate (113) and a left return spring (114). The fixing plate (111) is fixedly mounted on the left side plate of the seat frame (100); the left adjustment plate (113) is hinged to the left fixing plate (111) via a left rotating shaft (112) using a hinge principle; the two ends of a left return spring (114) are respectively connected to the left adjustment plate (113) and the left fixing plate (111) for returning the left adjustment plate (113); the left adjustment plate (113) is in contact with the left side wing of the seat; the left adjustment plate (113) can rotate around the left rotating shaft (112) under the pull of an external force, thereby compressing the foaming of the left side wing; the right adjustment mechanism assembly (120) comprises a right fixing plate (121), a right rotating shaft (122), a right adjustment plate (123) and a right return spring ( 124), the right fixed plate (121) is fixedly mounted on the right side plate of the seat frame (100), the right adjustment plate (123) is hinged to the right fixed plate (121) through the right rotation axis (122) using the hinge principle, the two ends of the right return spring (124) are respectively connected to the right adjustment plate (123) and the right fixed plate (121), and are used for returning the right adjustment plate (123), the right adjustment plate (123) is in contact with the right side wing of the seat, and the right adjustment plate (123) can rotate around the right rotation axis (122) under the pull of an external force, thereby compressing the foaming of the right side wing; the two ends of the left return spring (114) are respectively connected to the left adjustment plate (113) and the left fixed plate (111);The two ends of the right return spring (124) are respectively connected to the right adjustment plate (123) and the right fixed plate (121). The return spring is used to return the adjustment plate. The return of the adjustment plate eliminates the pushing force on the side wing, and the side wing foams and recovers. The cable assembly (130) includes a main drive cable (131), a left cable (132) and a right cable (133). The main drive cable (131), the left cable (132) and the right cable (133) are all steel cables. The head end of the main drive cable (131) is connected to the manual drive assembly (140). The main driving cable (131) is connected to the left fixing plate (111), and the head end is covered with a cable sleeve (134), the cable sleeve (134) is clamped on the left fixing plate (111), the tail end of the main driving cable (131) is connected to the left cable (132) and the right cable (133), and the main driving cable (131) can pull the left cable (132) and the right cable (133) at the same time; the left cable (132) and the right cable (133) are respectively connected to the left adjusting plate (113) and the right adjusting plate (123), driving the left adjusting plate (113) and the right adjusting plate (123) to move. ) rotate around their respective rotation axes; the manual drive assembly (140) comprises an operating knob (141) and a gear plate drive unit, the gear plate drive unit being connected to the operating knob (141) and the main drive cable (131) respectively; the gear plate drive unit comprises a drive rod (142), a drive gear (148) and a gear plate (144); the drive rod (142) penetrates the left fixed plate (111), the outer end of the drive rod (142) is sleeved with the operating knob (141), and the drive gear (148) is sleeved with the The inner end of the drive rod (142) is mounted; the toothed plate (144) is hinged on the inner side of the left fixed plate (111); the toothed plate (144) has a toothed portion, and is meshed with the drive gear (148) through the toothed portion; the toothed plate (144) is also connected to the head end of the main drive cable (131); when the operating knob (141) is rotated, the drive gear (148) is driven to rotate, and the drive gear (148) then drives the meshed toothed plate (144) to rotate, and when the toothed plate (144) is rotated, the main drive cable (131) is pulled to move. ; 2. The manual adjustment mechanism for the width of the vehicle seat wing according to claim 1, characterized in that: A cable junction cylinder (135) is provided at the connection between the main drive cable (131) and the left cable (132) and the right cable (133); the cable junction cylinder (135) is fixedly mounted on the seat frame (100); the connection ends of the main drive cable (131) and the left cable (132) and the right cable (133) are both built into the cable junction cylinder (135), and the main drive cable (131) is connected to the left cable (132) and the right cable (133) at the same time.

3. The manual adjustment mechanism for the width of the vehicle seat wing according to claim 1, characterized in that: The outer end of the driving rod (142) sleeved with the operating knob (141) is a spline shaft, and the operating knob (141) sleeved with the driving rod (142) and fixed on the spline shaft of the driving rod (142) via a retaining spring (143).

4. The manual adjustment mechanism for the width of the vehicle seat wing according to claim 1, characterized in that: A hinge hole is formed at one end of the tooth plate (144) away from the tooth portion, a bushing (145) and a rivet (146) are installed in the hinge hole, the rivet (146) is riveted to the left fixed plate (111), and the tooth plate (144) is hinged to the inner side of the left fixed plate (111) via the rivet (146) and the bushing (145).

5. The manual adjustment mechanism for the width of the vehicle seat wing according to claim 1, characterized in that: The gear plate drive unit further includes a limit assembly, which includes a waist groove (149) provided on the tooth plate (144) and a limit pin (147) passing through the waist groove (149) and fixedly connected to the left fixed plate (111). The waist groove (149) is an arc-shaped groove. The waist groove (149) and the limit pin (147) are used to limit the rotation angle of the tooth plate (144), that is, to limit the moving distance of the main drive cable (131).

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