Electric adjustment mechanism for car seat wing width

Abstract

The present invention discloses an electric 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 an electric 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 electric drive assembly is installed on the left adjustment mechanism assembly, the electric drive assembly is connected to the cable assembly, and drives the left adjustment mechanism assembly and the right adjustment mechanism assembly connected to the cable assembly to move synchronously, push the wing on both sides of the seat to compress the foaming of the wing, so as to achieve the purpose of adjusting the width between the wing on both sides. The adjustment mechanism can meet the diverse body shapes of passengers and people's requirements for seat comfort.

Description

Technical Field

[0001] The invention relates to an automobile seat adjustment device, in particular to an automobile seat wing width electric adjustment mechanism. 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 an electric adjustment mechanism for the width of a car seat wing, which can adjust the width between the wing 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: an electric 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 an electric 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 electric drive assembly is installed on the left adjustment mechanism assembly, the electric 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 electric 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 electric drive assembly includes an adjusting motor and a screw drive unit. The adjusting motor is mounted on the left fixed plate. The screw drive unit is connected to the adjusting motor and the main drive cable respectively.

[0011] The adjusting motor is mounted on the left fixing plate via motor fixing bolts.

[0012] The screw drive unit includes a screw, a screw transmission sleeve, a screw protection sleeve and a cable bracket. The screw is connected to the output shaft of the adjusting motor, and the output shaft of the adjusting motor drives the screw to rotate synchronously. The screw transmission sleeve is a hollow cylinder with an internal thread. The screw transmission sleeve is sleeved on the screw, and the screw protection sleeve is sleeved on the screw transmission sleeve and is tightly connected to the screw transmission sleeve. The fixed end of the cable bracket is fixedly welded on the screw protection sleeve, and the connecting end of the cable bracket is connected to the head end of the main drive cable; when the screw rotates, it drives the screw transmission sleeve to move along the axial direction of the screw, and the screw transmission sleeve pulls the main drive cable to move through the screw protection sleeve and the cable bracket.

[0013] In the present invention, the regulating motor is a forward and reverse rotating motor.

[0014] As an improvement of the present invention: the screw drive unit also includes a limit assembly, the limit assembly includes a limit baffle and a fixing clip, the limit baffle is tightened on the end of the screw, and the fixing clip is clamped on the very end of the screw, the limit baffle and the fixing clip are used to limit the stroke of the screw transmission sleeve, that is, to limit the moving distance of the main drive cable.

[0015] The electric adjustment mechanism of the present invention drives the adjustment motor and the screw transmission structure on the left adjustment mechanism through the switch button, and then drives the adjustment plate on the adjustment mechanism through the cable to adjust the width of the seat wing.

[0016] The electric adjustment mechanism can provide a certain stroke by introducing a lightweight and simple screw transmission 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 electric adjustment mechanism for the width of the automobile seat wing of the present invention installed on the seat frame;

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

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

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

[0022] In the figure:

[0023] 100. Seat frame, 101. Left side panel assembly, 102. Right side panel assembly, 110. Left adjustment mechanism assembly,

[0024] 111. Left fixed plate, 112. Left rotating shaft, 113. Left adjusting plate, 114. Left return spring,

[0025] 120. Right adjustment mechanism assembly, 121. Right fixed plate, 122. Right rotating shaft, 123. Right adjustment plate,

[0026] 124, right return spring, 130, cable assembly, 131, main drive cable, 132, left cable,

[0027] 133. Right cable, 134. Cable sleeve, 135. Cable junction cylinder, 140. Electric drive assembly,

[0028] 141. Adjusting motor, 142. Motor fixing bolt, 143. Screw, 144. Screw transmission sleeve,

[0029] 145. Screw rod protection cover, 146. Limit baffle, 147. Fixing clip, 148. Cable bracket. DETAILED DESCRIPTION

[0030] like Figures 1 to 4 The electric adjustment mechanism for the width of the automobile seat wing shown in the figure includes a left adjustment mechanism assembly 110, a right adjustment mechanism assembly 120, a cable assembly 130 and an electric 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; wherein, a wiring harness connected to the electric drive assembly 140 and a switch button of the seat wing (not shown in the figure) extends from the left adjustment mechanism assembly 110, and the switch button is adjusted to drive the motor of the electric drive assembly 140 to rotate. The electric drive assembly 140 is installed on the left adjustment mechanism assembly 110. The electric drive assembly 140 is connected to the cable assembly 130 and can pull the cable assembly 130 to move, thereby driving the left adjustment mechanism assembly 110 and the right adjustment mechanism assembly 120 connected to the cable assembly 130 to move synchronously. When the left adjustment mechanism assembly 110 and the right adjustment mechanism assembly 120 are in motion, they will 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.

[0031] 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.

[0032] 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.

[0033] 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 electric 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.

[0034] 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.

[0035] In this embodiment, the electric drive assembly 140 includes an adjusting motor 141 and a screw drive unit. The adjusting motor 141 is mounted on the left fixing plate 111 through a motor fixing bolt 142. The screw drive unit is connected to the adjusting motor 141 and the main driving cable 131 respectively.

[0036] In this embodiment, the screw drive unit includes a screw 143, a screw transmission sleeve 144, a screw protection sleeve 145 and a cable bracket 148. The screw 143 is directly and firmly connected to the output shaft of the adjusting motor 141 through its own thread. The adjusting motor 141 is a forward and reverse motor. The output shaft of the adjusting motor 141 drives the screw 143 to rotate synchronously. The screw transmission sleeve 144 is a hollow cylinder with an internal thread. The screw transmission sleeve 144 is mounted on the screw 143. The screw protection sleeve 145 is mounted on the screw transmission sleeve 144 and firmly connected to the screw transmission sleeve 144. The fixed end of the cable bracket 148 is fixedly welded on the screw protection sleeve 145. The connecting end of the cable bracket 148 is connected to the head end of the main drive cable 131. When the screw 143 rotates, it drives the screw transmission sleeve 144 to move axially along the screw 143. The screw transmission sleeve 144 pulls the main drive cable 131 to move through the screw protection sleeve 145 and the cable bracket 148.

[0037] As a preferred embodiment, the screw drive unit also includes a limit assembly, which includes a limit baffle 146 and a fixing clip 147. The limit baffle 146 is tightened at the end of the screw 143, and the fixing clip 147 is clamped at the very end of the screw 143. The limit baffle 146 and the fixing clip 147 are used to limit the stroke of the screw transmission sleeve 144, that is, to limit the moving distance of the main drive cable 131.

[0038] The specific adjustment process of the electric adjustment mechanism of the present invention is as follows: the adjustment motor 140 is driven to rotate by operating the switch button, and the screw rod 143 rotates under the action of the adjustment motor 140. When the screw rod 143 rotates, it drives the screw rod transmission sleeve 144 to move axially along the screw rod 143, thereby driving the screw rod protection sleeve 145 and the cable bracket 148 to move together. While the screw rod transmission sleeve 144 is subjected to the transmission force of the screw rod 143, it is also limited by the tension from the main drive cable 131, so that the screw rod transmission sleeve 144 can only move axially along the screw rod 143, and will not rotate circumferentially around the screw rod 143. When the cable bracket 148 moves, it pulls the main drive cable 131 connected to it, and the main drive cable 131 simultaneously pulls the left cable 132 and the right cable 133. 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 plates to compress the foaming of the side wings, thereby achieving the purpose of adjusting the width between the side wings on both sides. The end of the screw rod 143 is provided with a limit stopper 146 and a fixing clip 147, which can play the role of limiting the limit position and limit the movement stroke of the screw rod transmission sleeve 144. At the same time, the return spring can help the adjustment plate return to its original position. The return of the adjustment plate eliminates the pushing force on the side wing, and the side wing foam returns to the uncompressed state.

[0039] 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. The electric adjustment mechanism for the width of the side wing of the automobile seat is characterized by: The adjustment mechanism comprises a left adjustment mechanism assembly (110), a right adjustment mechanism assembly (120), a cable assembly (130) and an electric 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 electric drive assembly (140) is mounted on the left adjustment mechanism assembly (110), and the electric drive assembly (140) is connected to the cable assembly (130). 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 electric drive assembly (140), and the head end is covered with a cable sleeve (134). The cable sleeve (134) is mounted on the left fixed plate (111); the tail end of the main driving cable (131) is connected to the left cable (132) and the right cable (133); 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 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; the electric drive assembly (140) includes an adjustment motor (141) and a screw drive The adjusting motor (141) is mounted on the left fixed plate (111); the screw drive unit is connected to the adjusting motor (141) and the main drive cable (131) respectively; the screw drive unit comprises a screw (143), a screw drive sleeve (144), a screw protection sleeve (145) and a cable bracket (148); the screw (143) is connected to the output shaft of the adjusting motor (141); the output shaft of the adjusting motor (141) drives the screw (143) to rotate synchronously; the screw drive sleeve (144) is a hollow cylinder with an internal thread ... ) is sleeved on the screw (143), the screw protection sleeve (145) is sleeved on the screw transmission sleeve (144) and is tightly connected to the screw transmission sleeve (144), the fixed end of the cable bracket (148) is fixedly welded to the screw protection sleeve (145), and the connecting end of the cable bracket (148) is connected to the head end of the main drive cable (131); when the screw (143) rotates, the screw transmission sleeve (144) is driven to move along the axial direction of the screw (143), and the screw transmission sleeve (144) pulls the main drive cable (131) to move through the screw protection sleeve (145) and the cable bracket (148). ; 2. The electric adjustment mechanism for the width of the vehicle seat wing according to claim 1 is 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 electric adjustment mechanism for the width of the vehicle seat wing according to claim 1 is characterized in that: The regulating motor (141) is mounted on the left fixing plate (111) via a motor fixing bolt (142).

4. The electric adjustment mechanism for the width of the vehicle seat wing according to claim 1 is characterized in that: The regulating motor (141) is a forward and reverse rotating motor.

5. The electric adjustment mechanism for the width of the vehicle seat wing according to claim 1, characterized in that: The screw drive unit further comprises a limit assembly, the limit assembly comprising a limit baffle (146) and a fixing clip (147), the limit baffle (146) being screwed onto the end of the screw (143), the fixing clip (147) being clamped onto the very end of the screw (143), the limit baffle (146) and the fixing clip (147) being used to limit the stroke of the screw transmission sleeve (144), that is, to limit the moving distance of the main drive cable (131).

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