A rope-and-pulley glass lifter guide rail

Abstract

The utility model provides a kind of guide rail of rope wheel type glass lifter belongs to automobile parts technical field.It solves the technical problems such as insufficient structural strength of the guide rail of existing glass lifter.The guide rail of this rope wheel type glass lifter is long arc, one end of guide rail is the installation end of mounting pulley, the other end of guide rail is equipped with the fixed section capable of being fixed with motor support, the both sides of guide rail are equipped with the reinforcing flanging that is folded forward, the reinforcing flanging located outside is equipped with the gap for making room near installation end, the boss portion is formed by punching forward at installation end of guide rail, installation hole for mounting pulley is opened on boss portion, boss portion is close to the side of gap for making room, circular arc transition between boss portion and guide rail, reinforcing rib no.1 formed by punching backward is equipped at gap for making room on guide rail, reinforcing rib no.1 is connected with the outside side of boss portion.The utility model has the advantage of enhancing the structural strength of guide rail.

Description

Technical Field

[0001] This utility model belongs to the field of automotive parts technology and relates to a guide rail for a rope wheel type window regulator. Background Technology

[0002] As competition intensifies in the automotive industry and cost and quality control become increasingly stringent, the automotive parts manufacturing industry faces unprecedented pressure. Rope wheel type window regulators are structures used to raise and lower car windows. For example, a rope wheel type automotive window regulator disclosed in Chinese patent literature [Authorization Announcement No. CN214532490U] includes a guide rail. At one end of the guide rail along its length direction, there is a motor mounting part for mounting a motor. A rope wheel is fitted onto the motor mounting part, allowing the motor to drive the rope wheel to rotate. The cross-section of the guide rail along its length direction is arc-shaped. A guide wheel is located at the end of the guide rail opposite to the rope wheel, and a transmission rope connects the rope wheel and the guide wheel. In the existing structure, the guide wheel is directly fixed to the end of the guide rail, and there is no structural reinforcement on the guide rail. When the window lift is stuck, the drive rope pulls the guide wheel downward, and the guide wheel exerts pressure on the guide rail. Currently, with the guide rail thickness generally being relatively small, deformation easily occurs at the connection between the guide rail and the guide wheel. The deformed guide rail comes into direct contact with the guide wheel, causing friction between the guide wheel and the guide rail when the guide wheel rotates. This increases the rotational resistance of the guide wheel, increases the load on the motor, and can easily damage the motor. At the same time, it reduces the speed of window lifting, making it less smooth and producing abnormal noise. Furthermore, the current guide rail is generally curved, and the connection between the guide rail and the motor bracket is also curved, making it impossible to achieve a close fit and fixation with the motor bracket. Vibration during the use of the rope wheel type window lifter will cause abnormal noise. Utility Model Content

[0003] The purpose of this invention is to address the aforementioned problems in existing technologies by proposing a guide rail for a rope wheel type glass lifter. The technical problem solved by this invention is to enhance the structural strength of the guide rail.

[0004] The objective of this utility model can be achieved through the following technical solutions:

[0005] A guide rail for a rope pulley type window regulator, the guide rail being elongated and arc-shaped, one end of the guide rail being a mounting end for installing pulleys, and the other end of the guide rail having a fixing section for fixing to a motor bracket, both sides of the guide rail having forward-folding reinforcing flanges, and the outer reinforcing flange having a clearance notch near the mounting end, characterized in that a boss portion is formed by forward punching at the mounting end of the guide rail, the boss portion having a mounting hole for installing pulleys, the side of the boss portion near the clearance notch having an arc transition between the boss portion and the guide rail, and a reinforcing rib formed by backward punching at the clearance notch on the guide rail, the reinforcing rib being connected to the outer edge of the boss portion.

[0006] The steel wire rope of the window regulator is wound between two pulleys. The driven pulley is installed at the mounting end of the guide rail, and the driving pulley is installed in the motor bracket. The driven pulley is aligned with the clearance notch, and one side of the driven pulley extends out of the clearance notch, so that one side of the steel wire rope is inside the guide rail, and the other side of the steel wire rope is outside the guide rail.

[0007] The boss protrudes relative to the guide rail, and the arc transition between the edge of the boss and the guide rail forms a reinforcing structure. The reinforcing rib located at the clearance notch protrudes in the opposite direction to the boss, further increasing the structural thickness of the guide rail at the clearance notch, thereby further increasing the structural strength at the mounting end. This prevents deformation of the guide rail mounting end when the driven pulley is subjected to a large tensile force. The boss protruding relative to the guide rail also increases the safety clearance between the driven pulley and the guide rail, preventing contact friction between the driven pulley and the guide rail after it tilts under force, and ensuring that the driven pulley has sufficient space to operate safely.

[0008] In the guide rail of the aforementioned rope-wheel type glass lifter, the cross-section of the reinforcing rib is U-shaped. This reinforcing rib has high structural strength and is easy to process.

[0009] In the guide rail of the aforementioned cable-driven window regulator, the reinforcing rib has an extension section that extends to the reinforcing flange. The overall structural strength of the reinforcing rib is enhanced by the extension section that overlaps with the reinforcing flange.

[0010] In the guide rail of the aforementioned rope pulley type window regulator, the height of the side of the reinforcing rib located at the clearance notch is higher than the guide rail but lower than the platform surface of the boss. This structure increases the thickness of the reinforcing rib without affecting the rotation of the driven pulley.

[0011] In the guide rail of the aforementioned rope-wheel type window regulator, a second reinforcing rib is formed by backward stamping on the guide rail and the boss portion. One end of the second reinforcing rib is located on the boss portion, and the other end is located on the guide rail. The second reinforcing rib is parallel to the first reinforcing rib. The second reinforcing rib further increases the structural strength of the boss portion.

[0012] In the guide rail of the aforementioned cable-driven window regulator, the fixed section has two interlocking plate sections, spaced apart, both of which are straight plates. These two interlocking plate sections can be inserted and fixed to the motor bracket. The flat interlocking plate sections can completely fit against the inner wall of the insertion holes on the motor bracket, ensuring that the guide rail and motor bracket are firmly fixed without producing abnormal noise.

[0013] In the guide rail of the aforementioned rope-wheel type window lifter, the fixed section is provided with a limiting rib located between the two plug-in plate sections. The limiting rib can abut against the motor bracket during installation, thereby ensuring that the two plug-in plate sections are installed in place.

[0014] In the guide rail of the aforementioned cable pulley type glass lifter, one section of the plug plate is provided with the aforementioned reinforcing flange, and the reinforcing flange corresponding to the plug plate is in the shape of a straight strip.

[0015] Compared with existing technologies, the guide rail of this rope pulley type window lifter has the advantages of enhanced structural strength at the installation point of the driven pulley and more secure fixation to the motor bracket. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the rope wheel type window lifter.

[0017] Figure 2 This is a three-dimensional structural diagram of the rope wheel type window lift from another perspective.

[0018] Figure 3 This is a schematic diagram of the three-dimensional structure of the guide rail.

[0019] Figure 4 This is a three-dimensional structural diagram of the guide rail from another perspective.

[0020] Figure 5 yes Figure 1 A magnified structural diagram of part A in the middle.

[0021] Figure 6 yes Figure 2 A magnified structural diagram of section B.

[0022] Figure 7 yes Figure 4 Enlarged structural diagram of section C.

[0023] In the diagram, 1. Guide rail; 11. Mounting end; 12. Boss; 121. Mounting hole; 13. Reinforcing rib one; 131. Extension section; 14. Reinforcing rib two; 15. Fixing section; 151. Insertion plate; 16. Limiting rib; 17. Reinforcing flange; 18. Clearance notch; 2. Motor bracket; 3. Driven pulley; 4. Wire rope. Detailed Implementation

[0024] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0025] like Figures 1 to 7As shown, the rope pulley type glass lifter includes a guide rail 1, a motor bracket 2 with a motor and a drive pulley, a driven pulley 3, and a steel wire rope 4. The guide rail 1 is an elongated arc shape, with one end of the guide rail 1 being the mounting end 11, where the driven pulley 3 is mounted. The other end of the guide rail 1 has a fixed section 15, and the motor bracket 2 is fixed to the fixed section 15. The steel wire rope 4 is wound between the driven pulley 3 and the drive pulley, and a slider is fixed on the steel wire rope 4. The slider is slidably connected to the guide rail 1. The rotation of the motor drives the pulley, which in turn drives the steel wire rope 4 to rotate, thereby moving the slider up and down along the guide rail 1, thus realizing the up and down lifting of the glass mounted on the slider.

[0026] Specifically, both sides of the guide rail 1 are provided with forward-folding reinforcing flanges 17. The outer reinforcing flange 17 is provided with a clearance notch 18 near the mounting end 11. The driven pulley 3 is aligned with the clearance notch 18. One side of the driven pulley 3 extends out of the clearance notch 18, so that one side of the wire rope 4 is inside the guide rail 1, and the other side of the wire rope 4 is outside the guide rail 1. A boss 12 is formed by pressing forward at the mounting end 11 of the guide rail 1. The boss 12 has a mounting hole 121 for mounting pulleys. The boss 12 is close to the side of the relief notch 18. The boss 12 and the guide rail 1 have a rounded transition. A reinforcing rib 13 is formed by pressing backward at the relief notch 18 on the guide rail 1. The reinforcing rib 13 is connected to the outer side of the boss 12. The cross-section of the reinforcing rib 13 is U-shaped. The reinforcing rib 13 has an extension section 131 that extends to the reinforcing flange 17. The height of the side of the reinforcing rib 13 at the relief notch 18 is higher than that of the guide rail 1 and lower than the table surface of the boss 12. A reinforcing rib 2 14 is formed by pressing the guide rail 1 and the boss portion 12 backward. One part of the reinforcing rib 2 14 is located on the boss portion 12, and the other part of the reinforcing rib 2 14 is located on the guide rail 1. The reinforcing rib 2 14 is parallel to the reinforcing rib 13.

[0027] The fixing section 15 has two plug-in plate sections 151, which are spaced apart and are both straight. One of the plug-in plate sections 151 has the aforementioned reinforcing flange 17, which is straight. All surfaces of the straight plug-in plate section 151 and the straight reinforcing flange 17 are flat. Both plug-in plate sections 151 can be plugged into and fixed to the motor bracket 2, and the flat plug-in plate section 151 can completely fit the inner wall of the plug-in hole on the motor bracket 2. A limiting rib 16 is provided between the two plug-in plate sections 151 in the fixing section 15, which abuts against the motor bracket 2 during installation.

[0028] The boss portion 12 protrudes relative to the guide rail 1, and the arc transition between the edge of the boss portion 12 and the guide rail 1 forms a reinforcing structure. The reinforcing rib 13 located at the relief notch 18 protrudes in the opposite direction to the boss portion 12, further increasing the structural thickness of the guide rail 1 at the relief notch 18, thereby further increasing the structural strength at the mounting end 11. Under the condition that the driven pulley 3 is subjected to a large tension, the mounting end 11 of the guide rail 1 can be prevented from deforming. The boss portion 12 protrudes relative to the guide rail 1, which also increases the safety clearance between the driven pulley 3 and the guide rail 1, preventing the driven pulley 3 from contacting and rubbing against the guide rail 1 after being tilted under force, so that the driven pulley 3 has enough space to operate safely.

[0029] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. A guide rail for a rope pulley type glass lifter, wherein the guide rail (1) is an elongated arc shape, one end of the guide rail (1) is a mounting end (11) for mounting pulleys, the other end of the guide rail (1) is provided with a fixing section (15) that can be fixed to a motor bracket (2), both sides of the guide rail (1) are provided with forward-folding reinforcing flanges (17), and the outer reinforcing flanges (17) near the mounting end (11) are provided with clearance notches (18), characterized in that, The mounting end (11) of the guide rail (1) is punched forward to form a boss (12). The boss (12) has a mounting hole (121) for mounting a pulley. The boss (12) is close to the relief notch (18). The boss (12) and the guide rail (1) are connected by an arc. The guide rail (1) has a reinforcing rib (13) punched backward at the relief notch (18). The reinforcing rib (13) is connected to the outer side of the boss (12).

2. The guide rail of the rope pulley type glass lifter according to claim 1, characterized in that, The cross-section of the reinforcing rib (13) is U-shaped.

3. The guide rail of the rope pulley type glass lifter according to claim 1, characterized in that, The reinforcing rib (13) has an extension section (131) that extends to the reinforcing flange (17).

4. The guide rail of the rope pulley type glass lifter according to claim 1, characterized in that, The height of the side of the reinforcing rib (13) located at the clearance notch (18) is higher than that of the guide rail (1) and lower than that of the platform of the boss (12).

5. The guide rail of the rope pulley type glass lifter according to any one of claims 1 to 4, characterized in that, The guide rail (1) and the boss (12) are stamped backward to form a second reinforcing rib (14). One part of the second reinforcing rib (14) is located on the boss (12), and the other part of the second reinforcing rib (14) is located on the guide rail (1). The second reinforcing rib (14) is parallel to the first reinforcing rib (13).

6. The guide rail of the rope pulley type glass lifter according to any one of claims 1 to 4, characterized in that, The fixed section (15) is provided with two plug-in plate sections (151), which are spaced apart and both plug-in plate sections (151) are straight.

7. The guide rail of the rope pulley type glass lifter according to claim 6, characterized in that, The fixed section (15) is provided with a limiting rib (16) between the two plug-in plate sections (151).

8. The guide rail of the rope pulley type glass lifter according to claim 6, characterized in that, One of the plug-in plate portions (151) is provided with the aforementioned reinforcing flange (17), and the reinforcing flange (17) corresponding to the plug-in plate portion (151) is in the shape of a straight strip.

Images