Automatic paper feeding device

Abstract

The utility model provides an automatic paper feeding device. The automatic paper feeding device comprises a shell, a driving assembly and a conductor base. A paper feeding channel is formed in the shell. The driving assembly comprises an insulating movable seat, a roller, a conductor sheet and a conductor elastic piece, the insulating movable seat is movably arranged on the shell, the roller and the conductor sheet are arranged on the insulating movable seat, the roller is arranged on one side of the paper feeding channel, and the conductor elastic piece is arranged between the shell and the insulating movable seat in a pre-pressing mode so as to push the roller to the paper feeding channel; and the conductor elastic piece is conductively connected with the conductor sheet. The conductor base is connected to the shell and grounded, and a wire is connected between the conductor base and the conductor elastic piece.

Description

Technical Field

[0001] The present utility model relates to an automatic paper feeding device for a copying machine or a multi-functional office machine, and particularly to an automatic paper feeding device with an electrostatic elimination mechanism. Background Art

[0002] In the existing copying machines (Copy Machine) or multi-functional office machines (MFP), their automatic paper feeding devices (ADF, Auto Document Feeder Module) all use rollers to frictionally separate and advance the paper, and they have plastic elements to form a guiding channel (Path) to define the path of the paper travel. The paper is advanced one by one along the channel and enters the scanning module for scanning. After the scanning is completed, the paper is advanced and sent out of the automatic paper feeding device.

[0003] During the above-mentioned paper advancing process, the paper generates high-voltage static electricity by frictional contact with the rollers and the channel. After the accumulation of this high-voltage static electricity, it is easy to cause the papers to adsorb to each other and the paper to the rollers / channel, which will in turn affect the normal advancement of the paper and may cause problems such as skew or jam, and may even cause damage to the CIS image sensor module (CIS Image Sensor Module) due to electric shock. The risk of damage caused by the above-mentioned static electricity increases with the increase of the scanning speed.

[0004] In view of this, the inventor of the present invention has specifically studied the above-mentioned existing technologies and combined with the application of scientific principles, and has tried his best to solve the above problems, which has become the goal of the inventor's improvement. Summary of the Utility Model

[0005] The present utility model provides an automatic paper feeding device with an electrostatic elimination mechanism.

[0006] The present utility model provides an automatic paper feeding device, which includes a housing, a first driving component and a conductor base. A paper feeding channel is formed inside the housing. The first driving component includes a first insulating movable seat, a first roller, a first conductor sheet and a first conductor elastic member. The first insulating movable seat is movably arranged in the housing. The first roller and the first conductor sheet are arranged on the first insulating movable seat. The first roller is arranged on one side of the paper feeding channel. The first conductor elastic member is pre-pressed between the housing and the first insulating movable seat to push the first roller towards the paper feeding channel, and the first conductor elastic member is electrically connected to the first conductor sheet. The conductor base is connected to the housing and grounded, and a first wire is connected between the conductor base and the first conductor elastic member.

[0007] In an embodiment of the present utility model, the first conductor sheet has an edge, and the edge is disposed adjacent to and spaced from the first roller to form a gap between the edge and the first roller.

[0008] In an embodiment of the present utility model, the first conductor sheet is arranged towards the paper feeding channel.

[0009] In an embodiment of the present utility model, the automatic paper feeding device further includes a motor assembly, and the motor assembly is arranged on the conductor base and is power-connected to the first roller.

[0010] In an embodiment of the present utility model, the automatic paper feeding device further includes a transmission box, and the transmission box is arranged on the first insulating movable seat. The first roller is pivotally connected to the transmission box, and the motor assembly is power-connected to the transmission box.

[0011] In an embodiment of the present utility model, the first insulating movable seat is pivotally connected to the housing along a pivot axis, and the motor assembly is pivotally connected to the transmission box along the pivot axis.

[0012] In an embodiment of the present utility model, the first conductor sheet extends a hook claw, and the hook claw hooks the first insulating movable seat, and the first conductor elastic member presses against the hook claw.

[0013] In an embodiment of the present utility model, the housing includes a first insulating fixed seat, the first insulating movable seat is pivotally arranged on the first insulating fixed seat, and the first conductor elastic member is pre-pressed between the first insulating fixed seat and the first insulating movable seat.

[0014] The present utility model further provides an automatic paper feeding device, which includes a housing, a second driving assembly and a conductor base. A paper feeding channel is formed in the housing. The second driving assembly includes a first insulating movable seat, a second roller, a second conductor sheet and a second conductor elastic member. The second insulating movable seat is movably arranged in the housing. The second roller and the second conductor sheet are arranged on the second insulating movable seat. The second roller is arranged on one side of the paper feeding channel. The second conductor elastic member is pre-pressed between the housing and the second insulating movable seat to push the second roller towards the paper feeding channel, and the second conductor elastic member is electrically connected to the second conductor sheet. The second conductor sheet has an edge, and the edge is arranged adjacent to the second roller to form a gap between the edge and the second roller, and a convex tooth is arranged on the edge. The conductor base is connected to the housing and grounded, and a second wire is connected between the conductor base and the second conductor elastic member.

[0015] In an embodiment of the present utility model, the first conductor elastic member presses against the first conductor sheet.

[0016] In an embodiment of the present utility model, the housing includes a second insulating fixed seat, the second insulating movable seat is pivotally arranged on the second insulating fixed seat, and the second conductor elastic member is pre-pressed between the second insulating fixed seat and the second insulating movable seat.

[0017] The present utility model further provides an automatic paper feeding device, which comprises a housing, a first driving assembly, a second driving assembly, a conductor base and a motor assembly. A paper feeding channel is formed in the housing. The first driving assembly includes a first insulating movable seat, a plurality of first rollers, a first conductor sheet and a first conductor elastic member. The first insulating movable seat is movably arranged in the housing. The first rollers and the first conductor sheet are arranged on the insulating movable seat. The first rollers are arranged on the side of the paper feeding channel. The first conductor elastic member is pre-pressed between the housing and the first insulating movable seat to push the first guiding rollers towards the paper feeding channel, and the first conductor elastic member is electrically connected to the first conductor sheet. The second driving assembly is arranged on the other side of the paper feeding channel opposite to the first driving assembly. The second driving assembly includes a second insulating movable seat, a second roller, a second conductor sheet and a second conductor elastic member. The second insulating movable seat is movably arranged in the housing. The second roller and the second conductor sheet are arranged on the second insulating movable seat. The second roller is arranged on the other side of the paper feeding channel and abuts against one of the first rollers. The second conductor elastic member is pre-pressed between the housing and the second insulating movable seat to push the second roller towards the paper feeding channel, and the second conductor elastic member is electrically connected to the second conductor sheet. The second conductor sheet has a convex tooth, and the convex tooth and the second roller are arranged adjacent to each other with a gap formed therebetween. The conductor base is connected to the housing and grounded. A first wire is connected between the conductor base and the first conductor elastic member, and a second wire is connected between the conductor base and the second conductor elastic member. The motor assembly is arranged on the conductor base and is power-connected to the first rollers.

[0018] In an embodiment of the present utility model, the first conductor sheet has an edge, and a gap is respectively formed between the edge and each of the first rollers with an adjacent arrangement.

[0019] In an embodiment of the present utility model, the first conductor sheet is arranged towards the paper feeding channel and adheres to the paper feeding channel.

[0020] In an embodiment of the present utility model, the automatic paper feeding device further comprises a transmission box. The transmission box is arranged on the first insulating movable seat. Each of the first rollers is pivotally connected to the transmission box, and the motor assembly is power-connected to the transmission box.

[0021] In an embodiment of the present utility model, the first insulating movable seat is pivotally connected to the housing along a pivot axis, and the motor assembly is pivotally connected to the transmission box along the pivot axis.

[0022] In the automatic paper feeding device of the present utility model, conductor sheets are arranged on the driving assembly. Through the conductor sheets, the static electricity generated by the friction between the driving assembly and the paper during operation can be effectively guided to the system ground (Grounding), thereby avoiding the hindrance of the paper feeding action caused by the accumulation of static electricity. Description of the Drawings

[0023] Figure 1 is a cross-sectional view of the automatic paper feeding device according to an embodiment of the present utility model;

[0024] Figure 2 is a three-dimensional schematic view of an automatic paper feeding device according to an embodiment of the present utility model;

[0025] Figure 3 is another three-dimensional schematic view of an automatic paper feeding device according to an embodiment of the present utility model;

[0026] Figure 4 is a three-dimensional schematic view of a first driving assembly of an automatic paper feeding device according to an embodiment of the present utility model;

[0027] Figure 5 is another three-dimensional schematic view of a first driving assembly of an automatic paper feeding device according to an embodiment of the present utility model;

[0028] Figure 6 is yet another three-dimensional schematic view of a first driving assembly of an automatic paper feeding device according to an embodiment of the present utility model;

[0029] Figure 7 is a cross-sectional view of a first driving assembly of an automatic paper feeding device according to an embodiment of the present utility model;

[0030] Figure 8 is a three-dimensional schematic view of a second driving assembly of an automatic paper feeding device according to an embodiment of the present utility model;

[0031] Figure 9 is a cross-sectional view of a second driving assembly of an automatic paper feeding device according to an embodiment of the present utility model;

[0032] Figure 10 is a three-dimensional cross-sectional view of a second driving assembly of an automatic paper feeding device according to an embodiment of the present utility model;

[0033] Among them, reference numerals:

[0034] 100: housing;

[0035] 100a, 100b: structural members;

[0036] 110a, 110b: insulating fixing seats;

[0037] 101: paper feeding channel;

[0038] 200a: first driving assembly;

[0039] 200b: second driving assembly;

[0040] 201a, 201b, 201c: gaps;

[0041] 202a: pivot axis;

[0042] 210a: first insulating movable seat;

[0043] 210b: Second insulating movable seat;

[0044] 220a, 220c: First roller;

[0045] 220b: Second roller;

[0046] 230a: First conductor sheet;

[0047] 230b: Second conductor sheet;

[0048] 231a, 231b: Edge;

[0049] 232a, 232b: Hook;

[0050] 233b: Convex tooth;

[0051] 240a: First conductor elastic member;

[0052] 240b: Second conductor elastic member;

[0053] 250a: Transmission box;

[0054] 300: Conductor base;

[0055] 310: Grounding wire;

[0056] 310a: First wire;

[0057] 310b: Second wire;

[0058] 400: Motor assembly. Detailed implementation mode

[0059] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "front side", "rear side", "left side", "right side", "front end", "rear end", "end", "longitudinal direction", "lateral direction", "vertical direction", "top", "bottom", etc. is the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limiting condition of the present utility model.

[0060] As used herein and unless otherwise defined, terms such as "substantially" and "about" are used to describe and account for minor variations. When associated with an event or circumstance, such terms can encompass both the exact instance in which the event or circumstance occurs and the event or circumstance occurring to a close approximation. For example, when associated with a numerical value, such terms can encompass a range of variation less than or equal to ±10% of that numerical value, such as less than or equal to ±5%, less than or equal to ±4%, less than or equal to ±3%, less than or equal to ±2%, less than or equal to ±1%, less than or equal to ±0.5%, less than or equal to ±0.1%, or less than or equal to ±0.05%.

[0061] Figure 1 is a cross-sectional view of an automatic paper feeding device according to an embodiment of the present utility model. Figure 2 and Figure 3 is a perspective schematic view of an automatic paper feeding device according to an embodiment of the present utility model.

[0062] Referring to Figures 1 to 3 , an embodiment of the present utility model provides an automatic paper feeding device which is disposed on a copying machine or a multi-functional office machine for feeding paper. In this embodiment, the automatic paper feeding device includes a housing 100, at least one driving component, and a conductor base 300.

[0063] The housing 100 can be a single plastic structural member or a combined multi-piece structural member. An inner periphery of the housing 100 defines a paper feeding channel 101 for the passage of paper. In this embodiment, the housing 100 is composed of a combined multi-piece plastic structural member (100a, 100b), and the paper feeding channel 101 is formed between two spaced-apart structural members (100a, 100b), but the present utility model is not limited thereto.

[0064] The driving component is used to drive the paper to move, and its actions include advancing the paper and separating a single sheet of paper from a stack of papers. Each driving component at least includes an insulating movable seat, a roller, a conductor sheet, and a conductor elastic member. The insulating movable seat is movably disposed in the housing. The roller and the conductor sheet are disposed on the insulating movable seat. The roller is disposed on one side of the paper feeding channel. The conductor elastic member is pre-pressed between the housing and the insulating movable seat to push the roller towards the paper feeding channel, and the conductor elastic member electrically connects the conductor sheet. The conductor base is connected to the housing and grounded, and a wire is connected between the conductor base and the conductor elastic member for electrical connection.

[0065] As Figure 1As shown, the automatic paper feeding device in this embodiment includes two different forms of driving components, namely a first driving component 200a and a second driving component 200b, and each driving component has rollers to drive the paper to move. The first driving component 200a is arranged on one side of the paper feeding channel 101, and the second driving component 200b is arranged on the other side of the paper feeding channel 101 opposite to the first driving component 200a. The first driving component 200a is used to push the paper forward, and the first driving component 200a and the second driving component 200b cooperate to separate the single paper at the top of the whole stack of papers and further push it along the paper feeding channel 101. When the first driving component 200a pushes the single paper at the top, the second driving component 200b abuts against the lower paper to slow it down relative to the top paper, so that the single paper at the top is separated and continuously pushed by the first driving component 200a.

[0066] The conductor base 300 is connected to the housing 100 and grounded. Specifically, the conductor base 300 is attached to the housing 100, and the conductor base 300 is grounded by a grounding wire 310. In this embodiment, a motor assembly 400 is provided on the conductor base, and the motor assembly 400 is power-connected to the first driving component 200a to drive the first driving component 200a to push the paper.

[0067] The structures of the respective driving components will be described in detail as follows. Figures 4 to 6 It is a three-dimensional schematic diagram of the first driving component 200a of the automatic paper feeding device according to an embodiment of the present invention. Figure 7 It is a cross-sectional view of the first driving component 200a of the automatic paper feeding device according to an embodiment of the present invention.

[0068] Refer to Figures 4 to 7, the first driving component 200a includes a first insulating movable seat 210a, at least one first roller (220a, 220c), a first conductor sheet 230a, and a first conductor elastic member 240a. The first insulating movable seat 210a is movably disposed in the housing 100. Specifically, the first insulating movable seat 210a is pivotally connected to the housing 100 along a pivot axis 202a. The first roller (220a, 220c) and the first conductor sheet 230a are disposed on the first insulating movable seat 210a. The first roller (220a, 220c) is disposed on one side of the paper feeding channel 101. The first conductor elastic member 240a is pre-pressed between one of the structural members 100a of the housing 100 and the first insulating movable seat 210a to push the first roller (220a, 220c) toward the paper feeding channel 101, and the first conductor elastic member 240a electrically connects the first conductor sheet 230a. The first conductor elastic member 240a presses against the first conductor sheet 230a, and a first wire 310a is connected between the conductor base 300 and the first conductor elastic member 240b, whereby the first conductor sheet 230a is grounded through the conductor base 300 and the grounding wire 310.

[0069] In this embodiment, the first driving component 200a includes two first rollers (220a, 220c), but the present invention is not limited thereto. In the simplest embodiment, any one of the foregoing first rollers (220a, 220c) is power-connected to the motor assembly 400 to use this first roller 220a to advance the paper to achieve the effect of the present invention. Specifically, in this embodiment, the automatic paper feeding device further includes a transmission box 250a, and the transmission box 250a is disposed on the first insulating movable seat 210a. Each first roller (220a, 220c) is respectively pivotally connected to the transmission box 250a, and the motor assembly 400 is power-connected to the transmission box 250a, whereby the motor assembly 400 is power-connected to each first roller (220a, 220c). Specifically, the motor assembly 400 and one of the foregoing first rollers (220a) are coaxially pivotally connected to the transmission box 250a along the pivot axis 202a for transmission, thereby simplifying the structure of the transmission box 250a.

[0070] The first conductor sheet 230a is disposed facing the paper feeding channel 101. The first conductor sheet 230a has an edge 231a, and the edge 231a is disposed adjacent to and spaced from each first roller 220a, 220b, and a gap 201a, 201c is respectively formed between the edge 231a and each first roller 220a, 220c. Moreover, the first conductor sheet 230a extends a hook 232a, and the hook 232a hooks the first insulating movable seat 210a to fix the first conductor sheet 230a on the first insulating movable seat 210a, and the first conductor elastic member 240a presses against the hook 232a to electrically connect the first conductor sheet 230a thereby.

[0071] Figure 8 It is a three-dimensional schematic diagram of the second driving assembly 200b of the automatic paper feeding device according to an embodiment of the present utility model. Figure 9 It is a cross-sectional view of the second driving assembly 200b of the automatic paper feeding device according to an embodiment of the present utility model. Figure 10 It is a three-dimensional cross-sectional view of the second driving assembly 200b of the automatic paper feeding device according to an embodiment of the present utility model.

[0072] Refer Figures 8 to 10 , the second driving assembly 200b includes a second insulating movable seat 210b, a second roller 220b, a second conductor sheet 230b and a second conductor elastic member 240b. The second insulating movable seat 210b is movably arranged on the housing 100. The second roller 220b and the second conductor sheet 230b are arranged on the second insulating movable seat 210b, and the second roller 220b is arranged on one side of the paper feeding channel 101. The second conductor sheet 230b has an edge 231b, the edge 231b is disposed adjacent to the roller 220b and a gap 201b is formed between the edge 231b and the roller 220b, and a convex tooth 233b is provided on the edge 231b. The second conductor elastic member 240b is pre-pressed between the housing 100 and the second insulating movable seat 210b to push the second roller 220b towards the paper feeding channel 101, and the second conductor elastic member 240b is electrically connected to the second conductor sheet 230b. The second conductor elastic member 240b presses against the second conductor sheet 230b, and a second wire 310b is connected between the conductor base 300 and the second conductor elastic member 240b, whereby the second conductor sheet 230b is grounded through the conductor base 300 and the grounding wire 310.

[0073] Refer to Figures 1 to 4 , for facilitating the assembly and maintenance of the driving assembly, the housing 100 further includes a first insulating fixing seat 110a corresponding to the first driving assembly 200a and a second insulating fixing seat 110b corresponding to the second driving assembly 200b. Specifically, the first insulating fixing seat 110a and the second insulating fixing seat 110b are respectively arranged on the respective structural members (100a, 100b) of the aforementioned housing 100. The first insulating movable seat 210a is pivotally arranged on the first insulating fixing seat 110a, and the first conductor elastic member 240a is pre-pressed between the first insulating fixing seat 110a and the first insulating movable seat 210a. The second insulating movable seat 210b is pivotally arranged on the second insulating fixing seat 110b, and the second conductor elastic member 240b is pre-pressed between the second insulating fixing seat 110b and the second insulating movable seat 210b.

[0074] The driving assembly of the automatic paper feeding device of the present utility model is provided with a conductor sheet. Through the conductor sheet, the static electricity generated by the friction between the driving assembly and the paper during operation can be effectively guided to the system ground (Grounding), thereby avoiding the hindrance of the paper feeding action caused by the accumulation of static electricity.

[0075] The above are only the preferred embodiments of the present utility model, and are not intended to limit the patent scope of the present utility model. Equivalent changes using the patent spirit of the present utility model should all fall within the patent scope of the present utility model.

Claims

1. An automatic paper feeding device, characterized in that, Comprising: A housing, within which a paper feeding channel is formed; A first driving assembly, including a first insulating movable seat, a first roller, a first conductor sheet, and a first conductor elastic member. The first insulating movable seat is movably disposed in the housing. The first roller and the first conductor sheet are disposed on the first insulating movable seat. The first roller is disposed on one side of the paper feeding channel. The first conductor elastic member is pre-pressed between the housing and the first insulating movable seat to push the first roller towards the paper feeding channel, and the first conductor elastic member electrically connects the first conductor sheet; and A conductor base, connected to the housing and grounded, and a first wire is connected between the conductor base and the first conductor elastic member.

2. The automatic paper feeding device according to claim 1, wherein The first conductor sheet has an edge, and the edge is disposed adjacent to and spaced from the first roller to form a gap between the edge and the first roller.

3. The automatic paper feeding device according to claim 1, characterized in that, The first conductor sheet is disposed towards the paper feeding channel.

4. The automatic paper feeding device according to claim 1, characterized in that, Further comprising a motor assembly, the motor assembly is disposed on the conductor base and is power-connected to the first roller.

5. The automatic paper feeding device according to claim 4, characterized in that Further comprising a transmission box, the transmission box is disposed on the first insulating movable seat, the first roller is pivotally connected to the transmission box, and the motor assembly is power-connected to the transmission box.

6. The automatic paper feeding device according to claim 5, wherein, The first insulating movable seat is pivotally connected to the housing along a pivot axis, and the motor assembly is pivotally connected to the transmission box along the pivot axis.

7. The automatic paper feeding device according to claim 1, characterized in that, The first conductor sheet extends a hook, the hook hooks the first insulating movable seat, and the first conductor elastic member presses against the hook.

8. The automatic paper feeding device according to claim 1, wherein The housing includes a first insulating fixed seat, the first insulating movable seat is pivotally provided on the first insulating fixed seat, and the first conductor elastic member is pre-pressed between the first insulating fixed seat and the first insulating movable seat.

9. An automatic paper feeding device, characterized in that, Comprising: A housing, within which a paper feeding channel is formed; A second driving assembly, including a second insulating movable seat, a second roller, a second conductor sheet, and a second conductor elastic member. The second insulating movable seat is movably disposed in the housing. The second roller and the second conductor sheet are disposed on the second insulating movable seat. The second roller is disposed on one side of the paper feeding channel. The second conductor elastic member is pre-pressed between the housing and the second insulating movable seat to push the second roller towards the paper feeding channel, and the second conductor elastic member electrically connects the second conductor sheet. The second conductor sheet has an edge, the edge is disposed adjacent to the second roller to form a gap between the edge and the second roller, and a convex tooth is provided on the edge; and A conductor base, connected to the housing and grounded, and a second wire is connected between the conductor base and the second conductor elastic member.

10. The automatic paper feeding device according to claim 9, wherein, The first conductor elastic member presses against the first conductor sheet.

11. The automatic paper feeding device according to claim 9, wherein, The housing includes a second insulating fixed seat, the second insulating movable seat is pivotally provided on the second insulating fixed seat, and the second conductor elastic member is pre-pressed between the second insulating fixed seat and the second insulating movable seat.

12. An automatic paper feeding device, characterized in that, Comprising: A housing, within which a paper feeding channel is formed; A first driving assembly includes a first insulating movable seat, a plurality of first rollers, a first conductor sheet, and a first conductor elastic member. The first insulating movable seat is movably disposed in the housing. The first rollers and the first conductor sheet are disposed on the insulating movable seat. The first rollers are disposed on one side of the paper feeding channel. The first conductor elastic member is pre-pressed between the housing and the first insulating movable seat to push the first guiding rollers towards the paper feeding channel, and the first conductor elastic member electrically connects the first conductor sheet. A second driving assembly is disposed on the other side of the paper feeding channel opposite to the first driving assembly. The second driving assembly includes a second insulating movable seat, a second roller, a second conductor sheet, and a second conductor elastic member. The second insulating movable seat is movably disposed in the housing. The second roller and the second conductor sheet are disposed on the second insulating movable seat. The second roller is disposed on the other side of the paper feeding channel and abuts against one of the first rollers. The second conductor elastic member is pre-pressed between the housing and the second insulating movable seat to push the second roller towards the paper feeding channel, and the second conductor elastic member electrically connects the second conductor sheet. The second conductor sheet has a convex tooth, and the convex tooth is disposed adjacent to and spaced from the second roller to form a gap. A conductor base is connected to the housing and grounded. A first wire is connected between the conductor base and the first conductor elastic member, and a second wire is connected between the conductor base and the second conductor elastic member. A motor assembly is disposed on the conductor base and is power-connected to the first roller.

13. The automatic paper feeding device according to claim 12, characterized in that, The first conductor sheet has an edge, and the edge is disposed adjacent to and spaced from each of the first rollers to respectively form a gap.

14. The automatic paper feeding device according to claim 12, wherein, The first conductor sheet is disposed towards the paper feeding channel and adheres to the paper feeding channel.

15. The automatic paper feeding device according to claim 12, characterized in that, It further includes a transmission box. The transmission box is disposed on the first insulating movable seat. Each of the first rollers is pivotally connected to the transmission box, and the motor assembly is power-connected to the transmission box.

16. The automatic paper feeding device according to claim 15, characterized in that, The first insulating movable seat is pivotally connected to the housing along a pivot axis, and the motor assembly is pivotally connected to the transmission box along the pivot axis.

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