Automobile seat sliding rail running-in lead screw lifting device

Abstract

The utility model relates to the technical field of running-in of automobile seat sliding rails, in particular to a lead screw lifting device for running-in of the automobile seat sliding rails. Comprising a support, the two ends of the support are each provided with a lead screw lifting structure, and each lead screw lifting structure comprises a supporting plate, an inner rail clamping structure and a lead screw clamping structure; the inner rail clamping structure is arranged on the supporting plate and used for abutting against the upper end face of the end of the inner rail to limit upward movement of the inner rail. The screw rod clamping structure comprises a lifting rod; the lead screw clamping structure further comprises an axial driving structure used for driving the lifting rod to move in the axial direction of the sliding rail so that the end of the lifting rod can be inserted into the lower portion of the end of the lead screw, and a vertical driving structure used for driving the lifting rod to move in the vertical direction to lift the lead screw after the end of the lifting rod is inserted into the lower portion of the end of the lead screw. The device is simple in structure and convenient to operate and use, the lead screw in the sliding rail can be lifted up before running-in of the sliding rail, a support of the lead screw is prevented from making contact with the outer rail, and paint of the outer rail cannot be damaged by running-in of the follow-up outer rail and the inner rail.

Description

Technical Field

[0001] The utility model relates to the technical field of running-in of automobile seat slides, and specifically refers to a running-in screw lifting device for automobile seat slides. Background Art

[0002] Automobile seat slides are one of the important components of automobiles, and their main function is to realize the front-back adjustment of automobile seats. The structure of an automobile seat slide is as Figures 1 to 2 shown, mainly including an outer rail 102 and an inner rail 101. The outer rail 102 is a U-shaped member, the inner rail 101 is arranged inside the outer rail 102, an electric slide screw 103 is arranged between the outer rail 102 and the inner rail 101, and brackets in contact with the outer rail 102 are arranged at both ends of the electric slide screw 103.

[0003] There are certain standards for the sliding force between the outer rail and the inner rail in a vehicle. After the machining of the outer rail and the inner rail is completed, the sliding force between them usually cannot meet the vehicle use requirements, and they need to be run in a certain number of times to meet the automobile use requirements. The running-in work of the outer rail and the inner rail is usually completed on a special running-in machine. In the prior art, the outer rail is usually fixed on the workbench of the running-in machine, and the inner rail is driven by a driving component to reciprocate relative to the outer rail, so as to realize the friction between the two.

[0004] For example, a Chinese invention patent application with the patent number "CN201711001996.8" and the name "A running-in machine and control method for running-in of automobile seat slides" discloses a running-in machine. The running-in machine includes a frame, and the following components are arranged on the frame: a crank drive mechanism and a slider mechanism. The crank drive mechanism includes a cam connected to a rotating shaft, and the rotating shaft is arranged vertically; the slider mechanism includes a slider body, the bottom of the slider body is slidably matched with the frame, and a slide rail positioning component for positioning the outer slide rail of the seat slide is arranged on the slider body; the end of the slider body is connected to the cam through a connecting rod, so that under the rotation of the cam, the slider body reciprocates relative to the frame. This running-in machine drives the outer rail reciprocally to achieve the running-in effect, but this running-in machine can only be used for the running-in of non-electric slide rail structures and is not applicable to seat slides equipped with electric slide screws, because during the running-in process, the brackets at both ends of the electric slide screw will rub against the outer rail, and this friction will damage the paint layer on the outer rail. Therefore, there is an urgent need for a slide rail running-in device that can ensure that the paint on the outer rail is not damaged. Summary of the Utility Model

[0005] The purpose of the utility model is to solve the deficiencies of the above background art and provide a running-in screw lifting device for automobile seat slides.

[0006] The technical solution of the present utility model is: an automobile seat slide rail running-in screw rod lifting device, including a support, and a set of screw rod lifting structures are respectively arranged at both ends of the support. The screw rod lifting structure includes,

[0007] a support plate, and the support plate is connected to the support;

[0008] an inner rail clamping structure, which is arranged on the support plate and is used to press against the upper end surface of the end of the inner rail to limit the upward movement of the inner rail;

[0009] a screw rod clamping structure, and the screw rod clamping structure includes a lifting rod; the lifting rod is a horizontal rod-shaped structure arranged along the axial direction of the slide rail; the screw rod clamping structure further includes an axial driving structure used to drive the lifting rod to move along the axial direction of the slide rail so that the end of the lifting rod is inserted below the end of the screw rod, and a vertical driving structure used to drive the lifting rod to move vertically to lift the screw rod after the end of the lifting rod is inserted below the end of the screw rod.

[0010] For an automobile seat slide rail running-in screw rod lifting device provided by the present application, the vertical driving structure includes,

[0011] a connecting plate, and the connecting plate is slidably connected to the support plate in the vertical direction, and the connecting plate is fixedly connected to the lifting rod in the vertical direction;

[0012] a lifting cylinder, which is fixed on the support plate, and the telescopic end of the lifting cylinder is fixedly connected to the connecting plate and is used to drive the connecting plate to move vertically.

[0013] For an automobile seat slide rail running-in screw rod lifting device provided by the present application, a vertically arranged guide rail is provided on the support plate; the connecting plate is slidably connected to the guide rail.

[0014] For an automobile seat slide rail running-in screw rod lifting device provided by the present application, a limit block is provided on the support plate; the limit block contacts the connecting plate when the connecting plate moves vertically to the maximum position and limits the further upward movement of the limit block.

[0015] For an automobile seat slide rail running-in screw rod lifting device provided by the present application, the axial driving structure includes a servo motor fixed on the connecting plate; one end of the lifting rod is fixedly connected to the servo motor and is driven by the servo motor to move along the axial direction of the slide rail.

[0016] For an automobile seat slide rail running-in screw rod lifting device provided by the present application, a guiding structure for guiding the lifting rod to move along the axial direction of the slide rail is provided on the support plate.

[0017] For an automobile seat slide rail running-in screw rod lifting device provided by the present application, the guiding structure includes,

[0018] A guide rod, one end of the guide rod is fixed to the connecting plate, and the other end is arranged along the axial direction of the parallel slide rail;

[0019] A guide sleeve, the guide sleeve is slidably connected to the guide rod, and the guide sleeve is connected to the servo motor;

[0020] The lifting rod is fixedly connected to the guide sleeve through a connecting rod.

[0021] According to a lifting device for a running-in screw rod of an automobile seat slide rail provided by the present application, the inner rail clamping structure includes an inner rail chuck; the inner rail chuck is an L-shaped bent plate-like structure fixed on the support plate.

[0022] According to a lifting device for a running-in screw rod of an automobile seat slide rail provided by the present application, the lifting rod is a rod-shaped structure with a tip that can abut against the end of the electric slide rail screw rod.

[0023] According to a lifting device for a running-in screw rod of an automobile seat slide rail provided by the present application, the lifting rod is detachably connected to the support plate.

[0024] The advantages of the present application are as follows: 1. The lifting device for the running-in screw rod of the automobile seat slide rail of the present application can lift the electric slide rail screw rod vertically before the slide rail running-in through the coordinated action of the inner rail clamping structure and the screw rod clamping structure, so that the bracket of the screw rod is separated from the outer rail, avoiding damage to the paint layer of the outer rail by the bracket of the screw rod during the running-in process. The lifting device of the present application has a simple structure, is convenient to operate and use, and can well protect the outer rail structure when applied to the running-in process of the electric slide rail of the automobile seat, and has great popularization value;

[0025] 2. The present application drives the lifting rod to move vertically together with the screw rod through the vertical driving structure. Compared with the vertical movement of the inner rail, the vertical driving structure is driven by a lifting oil cylinder, has a simple structure, is convenient to operate and use, and can be completely automatically controlled, greatly improving the efficiency of the slide rail running-in;

[0026] 3. The present application is provided with a vertical guide rail on the support plate, and the guide rail is used to guide the vertical movement of the connecting plate, ensuring that the connecting plate can only move vertically, making the screw rod lifting movement smoother, the screw rod lifting more convenient and accurate, and the overall operation simpler;

[0027] 4. The present application is provided with a limit block on the support plate, and the limit block is used to limit the vertical movement of the connecting plate, avoiding the problem of damage to the screw rod and the inner rail structure caused by excessive upward movement of the connecting plate;

[0028] 5. The axial driving structure of the present application drives the lifting rod to move axially through a servo motor, and the servo motor can adjust the length of the axial movement of the lifting rod according to the structure of the slide rail to be run in, so as to adapt to the lifting of slide rail screw rods of different specifications, greatly improving the applicability of the entire device;

[0029] 6. The present application provides a guiding structure on the support plate to guide the axial movement of the lifting rod, ensuring that the lifting rod can accurately enter the slide rail to clamp and position the lead screw.

[0030] 7. The guiding structure of the present application is simple and convenient to operate. The combined structure of the guiding rod and the guiding sleeve can effectively restrict the non-axial movement of the lifting rod.

[0031] 8. The inner rail chuck of the present application has a simple structure and can be easily attached to the upper end surface of the inner rail. The two inner rail chucks on both sides cooperate with each other to firmly clamp and fix the inner rail. At the same time, the inner rail chuck presses against the upper end surface of the inner rail, which is equivalent to the inner rail and the support plate being vertically fixed to each other, facilitating the subsequent lifting operation of the lead screw.

[0032] 9. The lifting rod of the present application is a rod-shaped structure with a tip, which is convenient for tightly clamping the lead screw. The overall structure is simple, easy to use, and the clamping is stable and firm.

[0033] 10. The lifting rod of the present application is detachably connected to the support plate, so that a suitable lifting rod can be selected according to the specifications of the slide rail, and the versatility is better.

[0034] The structure of the present application is simple and convenient to operate. It can lift the lead screw in the slide rail before the slide rail is run-in, avoiding the contact between the bracket of the lead screw and the outer rail, and preventing the damage of the paint on the outer rail during the subsequent running-in between the outer rail and the inner rail. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 : Axial view of the slide rail structure;

[0036] Figure 2 : Axial view of the lead screw structure;

[0037] Figure 3 : Front view of the lead screw lifting structure of the present application;

[0038] Figure 4 : Enlarged schematic view of the lead screw lifting structure of the present application;

[0039] Figure 5 : Axial view of the lead screw lifting structure of the present application;

[0040] Wherein: 1 - support; 2 - support plate; 3 - lifting rod; 4 - connecting plate; 5 - lifting cylinder; 6 - guide rail; 7 - limit block (not shown in the figure); 8 - servo motor; 9 - guide rod; 10 - guide sleeve; 11 - inner rail chuck; 12 - connecting rod;

[0041] 101 - inner rail; 102 - outer rail; 103 - lead screw. Detailed implementation mode

[0042] The embodiments of the present utility model will be described in detail below. The same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present utility model, but should not be construed as a limitation to the present utility model.

[0043] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model.

[0044] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0045] The present utility model will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0046] The present application relates to a lifting device for a running-in screw rod of an automotive seat slide rail. The lifting device of the present application is a device for the running-in process of an automotive seat slide rail, and is used for an electric slide rail of an automotive seat. Before the slide rail undergoes running-in, the screw rod is lifted by the lifting device of the present application first, so that the brackets at both ends of the screw rod are disengaged from the lower outer rail, avoiding damage to the paint on the surface of the outer rail caused by the contact between the bracket and the outer rail during the subsequent running-in process of the outer rail and the inner rail.

[0047] Specifically, as Figures 1 to 5 shown, a lifting device for a running-in screw rod of an automotive seat slide rail of the present application includes a support 1. The support 1 is a beam structure suspended above the slide rail to be run in. A set of screw rod lifting structures are respectively arranged at both ends of the support 1. During actual use, the screw rod lifting structures on both sides respectively clamp one end of the slide rail, and cooperate to clamp and fix the slide rail, and jointly lift the screw rod vertically.

[0048] The screw rod lifting structure of the present application includes a support plate 2, an inner rail clamping structure, and a screw rod clamping structure. The support plate 2 is connected to the support 1. The inner rail clamping structure is arranged on the support plate 2 and is used to press against the upper end surface of the end of the inner rail to limit the upward movement of the inner rail. The screw rod clamping structure includes a lifting rod 3. The lifting rod 3 is a horizontal rod-shaped structure arranged along the axial direction of the slide rail. The screw rod clamping structure further includes an axial driving structure for driving the lifting rod 3 to move along the axial direction of the slide rail so that the end of the lifting rod 3 is inserted below the end of the screw rod, and a vertical driving structure for driving the lifting rod 3 to move vertically to lift the screw rod after the end of the lifting rod 3 is inserted below the end of the screw rod.

[0049] During actual use, the slide rail to be run-in is placed between two screw rod lifting structures (the support plate 2 of the present application is a structure that can be slidably connected to the support 1 along the axial direction of the slide rail. During operation, the slide rail to be run-in is placed between the two screw rod lifting structures on both sides, and then the two screw rod lifting structures on both sides are driven to move towards each other through the driving structure until the slide rail is placed between the two screw rod lifting structures). The inner rail clamping structures on both sides cooperate to clamp and fix the inner rail. The lifting rod 3 is driven to be inserted into the slide rail through the axial driving structures on both sides, so that the lifting rod 3 presses against the end of the electric screw rod. The two lifting rods 3 on both sides cooperate to fix the screw rod. The vertical driving structure drives the lifting rod 3 to move vertically upward, so that the screw rod moves upward relative to the inner rail until the brackets at both ends of the screw rod are separated from the outer ring of the outer rail, completing the screw rod lifting process, and then the run-in operation can be carried out.

[0050] In some embodiments of the present application, this embodiment optimizes the above-mentioned vertical driving structure. Specifically, as Figures 3 to 5 shown, the vertical driving structure of this embodiment includes a connecting plate 4 and a lifting cylinder 5. The connecting plate 4 is slidably connected to the support plate 2 in the vertical direction. The connecting plate 4 is fixedly connected to the lifting rod 3 in the vertical direction. The lifting cylinder 5 is fixed on the support plate 2, and the telescopic end of the lifting cylinder 5 is fixedly connected to the connecting plate 4 for driving the connecting plate 4 to move vertically.

[0051] The lifting cylinder 5 is a vertical driving cylinder. The cylinder body of the lifting cylinder 5 is fixed on the support plate 1, and the telescopic end of the lifting cylinder 5 is fixedly connected to the connecting plate 4. Under the action of the lifting cylinder 5, the connecting plate 4 can be driven to move vertically, and the overall operation is very simple.

[0052] In order to facilitate the vertical movement of the connecting plate 4, a vertically arranged guide rail 6 is provided on the support plate 2 in this embodiment. The connecting plate 4 is slidably connected to the guide rail 6, and a vertically arranged chute is opened on the connecting plate 4. The chute is clamped on the guide rail 6. That is, during the process of the lifting cylinder 5 driving the connecting plate 4 to move vertically, the connecting plate 4 moves vertically along the guide rail 6, and the lifting rod 3 fixed on the connecting plate 4 can move vertically.

[0053] Furthermore, a limiting block 7 is provided on the support plate 2 of this embodiment. When the connecting plate 4 moves vertically to the maximum position, the limiting block 7 contacts the connecting plate 4 and restricts further upward movement of the limiting block 7. The vertical movement of the connecting plate 4 is limited by the limiting block 7 to avoid the problem that the excessive upward movement of the connecting plate 4 may cause damage to the lead screw and the inner rail structure.

[0054] During actual use, after the lead screw is completely clamped by the lifting rods 3 on both sides, the lifting cylinder 5 is driven. The lifting cylinder 5 vertically drives the connecting plate 4, and the connecting plate 4 moves upward along the guide rail 6. The lifting rods 3 fixed on the connecting plate 4 clamp the end of the lead screw and move upward together with the connecting plate 4 to lift the lead screw, forcing the bracket on the lead screw to disengage from the outer rail, facilitating subsequent running-in operations.

[0055] In some other embodiments of the present application, the above axial drive structure is optimized. Specifically, as Figures 3 to 5 shown, the axial drive structure of this embodiment includes a servo motor 8 fixed on the connecting plate 4. One end of the lifting rod 3 is fixed to the servo motor 8 and is driven by the servo motor 8 to move axially along the slide rail.

[0056] The servo motor 8 is fixed on the connecting plate 4, that is, the servo motor 8 can move vertically together with the connecting plate 4. The servo motor 8 can set and adjust the axial movement of the lifting rod 3, so as to adapt to the running-in operations of slide rails of different specifications.

[0057] A guiding structure for guiding the axial movement of the lifting rod 3 along the slide rail is provided on the support plate 2. As Figures 3 to 5 shown, the guiding structure includes a guiding rod 9 and a guiding sleeve 10. One end of the guiding rod 9 is fixed to the connecting plate 4, and the other end is arranged along the axial direction of the parallel slide rail; the guiding sleeve 10 is slidably connected to the guiding rod 9, the guiding sleeve 10 is connected to the servo motor 8, and the lifting rod 3 is fixedly connected to the guiding sleeve 10 through a connecting rod 12. The lifting rod 3 is a rod-shaped structure with a tip that can abut against the end of the electric slide rail lead screw. The lifting rod 3 is detachably connected to the connecting rod 12.

[0058] The guiding structure formed by the guiding rod 9 and the guiding sleeve 10 can guide and limit the axial movement of the lifting rod 3 to avoid non-axial movement of the lifting rod 3.

[0059] During actual operation, when the slide rail to be run in is between the two lead screw lifting structures, the servo motor 8 is driven. The servo motor 8 drives the guiding sleeve 10 to move along the guiding rod 9, and the connecting rod 12 follows the guiding sleeve 10 to move, so that the tip of the end of the lifting rod 3 is inserted into the set position (such as Figure 2 A and B in), and the lifting rods 3 on both sides cooperate to clamp and fix the lead screw.

[0060] In a further embodiment of the present application, the inner rail clamping structure is optimized. Specifically, Figures 3 to 5 As shown, the inner rail clamping structure of this embodiment includes an inner rail clamp 11, which is an L-shaped bent plate structure fixed on the support plate 2. The vertical portion of the inner rail clamp 11 is fixed on the support plate 2, and the horizontal portion thereof is used to contact the inner rail. The lower end surface of the horizontal portion contacts the upper end surface of the inner rail to limit the upward movement of the inner rail when the vertical position of the lifting rod 3 is adjusted, ensuring that the inner rail is fixed relative to the support plate 2 when the vertical position of the lifting rod 3 is adjusted.

[0061] The support 1 of the present application is a beam structure suspended above the slide rail to be run-in, and the support plate 2 is a structure slidably connected to the support 1 (or the support plate 2 on one side is slidably connected to the support 1). The support 1 is provided with a driving structure for driving the support plate 2 to move axially along the slide rail. When the slide rail is placed in the running-in station, the support plates 2 on both sides are driven to move toward each other (or the support plate 2 on one side is driven to move toward the support plate 2 on the other side). In this way, the slide rail can be located between the screw lifting structures on both sides, so that the inner rail chuck 11 moves to the upper end surface of the inner rail end and fits tightly with the inner rail.

[0062] During actual operation, when the slide rail enters between the screw lifting structures on both sides, the inner rail chuck 11 moves to the upper end surface of the inner rail end and fits tightly with the inner rail; drives the servo motor 8, and the servo motor 8 drives the guide sleeve 10 to move along the guide rod 9, and the connecting rod 12 follows the guide sleeve 10 to move, so that the end tip of the lifting rod 3 is inserted into the set position, and the lifting rods 3 on both sides work together to clamp and fix the screw; drives the lifting cylinder 5, and the lifting cylinder 5 drives the connecting plate 4 vertically, and the connecting plate 4 moves upward along the guide rail 6. The lifting rod 3 fixed on the connecting plate 4 clamps the end of the screw and moves upward with the connecting plate 4, lifting the screw, forcing the bracket on the screw to disengage from the outer rail, which is convenient for subsequent running-in operations.

[0063] The axial direction of the present application refers to the length direction of the slide rail, that is, Figure 2 The left and right directions in the present application refer to the vertical direction. Figure 2 The up and down directions in .

[0064] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. The utility model may have various changes and improvements without departing from the spirit and scope of the utility model. These changes and improvements fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A vehicle seat slide rail running-in screw lifting device, comprising a support (1), characterized in that: A set of screw rod lifting structures are respectively arranged at both ends of the support (1), and the screw rod lifting structure comprises: A support plate (2), wherein the support plate (2) is connected to the support (1); An inner rail clamping structure, the inner rail clamping structure being arranged on the support plate (2) and used for pressing against the upper end surface of the inner rail end to limit the inner rail from moving upwards; A screw rod clamping structure, the screw rod clamping structure includes a lifting rod (3); the lifting rod (3) is a horizontal rod-shaped structure arranged along the axial direction of the slide rail; the screw rod clamping structure also includes an axial driving structure for driving the lifting rod (3) to move axially along the slide rail so that the end of the lifting rod (3) is inserted below the end of the screw rod, and a vertical driving structure for driving the lifting rod (3) to move vertically to lift the screw rod after the end of the lifting rod (3) is inserted below the end of the screw rod.

2. The automobile seat slide rail running-in screw lifting device according to claim 1, characterized in that: The vertical driving structure comprises: A connecting plate (4), wherein the connecting plate (4) is connected to the supporting plate (2) in a vertically slidable manner, and the connecting plate (4) is fixedly connected to the lifting rod (3) in the vertical direction; A lifting cylinder (5) is fixed on the support plate (2), and the telescopic end of the lifting cylinder (5) is fixedly connected to the connecting plate (4) to drive the connecting plate (4) to move vertically.

3. The automobile seat slide rail running-in screw lifting device according to claim 2, characterized in that: The support plate (2) is provided with a vertically arranged guide rail (6); the connecting plate (4) is slidably connected to the guide rail (6).

4. A vehicle seat slide rail running-in screw lifting device as claimed in claim 2 or 3, characterized in that: A limit block (7) is provided on the support plate (2); when the connection plate (4) moves vertically to a maximum position, the limit block (7) contacts the connection plate (4) and limits further upward movement of the limit block (7).

5. The automobile seat slide rail running-in screw lifting device according to claim 2, characterized in that: The axial drive structure comprises a servo motor (8) fixed on the connecting plate (4); one end of the lifting rod (3) is fixed to the servo motor (8) and is driven by the servo motor (8) to move axially along the slide rail.

6. The automobile seat slide rail running-in screw lifting device according to claim 5, characterized in that: The support plate (2) is provided with a guide structure for the lifting rod (3) to move axially along the slide rail.

7. The automobile seat slide rail running-in screw lifting device according to claim 6, characterized in that: The guiding structure comprises: A guide rod (9), one end of which is fixed to the connecting plate (4), and the other end of which is arranged in a direction parallel to the axial direction of the slide rail; A guide sleeve (10), wherein the guide sleeve (10) is slidably connected to the guide rod (9), and the guide sleeve (10) is connected to the servo motor (8); The lifting rod (3) is fixedly connected to the guide sleeve (10) via a connecting rod.

8. The automobile seat slide rail running-in screw lifting device according to claim 1, characterized in that: The inner rail clamping structure comprises an inner rail clamp (11); the inner rail clamp (11) is an L-shaped bent plate structure fixed on the support plate (2).

9. The automobile seat slide rail running-in screw lifting device according to claim 1, characterized in that: The lifting rod (3) is a rod-shaped structure having a top end that can be pressed against the end of the electric slide rail screw rod.

10. The automobile seat slide rail running-in screw lifting device according to claim 1, characterized in that: The lifting rod (3) is detachably connected to the support plate (2).

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