Glass lifter adjustable guide

Abstract

A glass lifter adjustable guide rail, including guide rail body for cooperating with slide plate, both ends of the guide rail body are provided with pulley matched with driving rope, both ends of the guide rail body are provided with connecting hole compared with the outside of pulley, the connecting hole is used for cooperating with the corresponding position of door to form the fixation between guide rail body and door, further including adjusting column threaded connected with connecting hole, the adjusting column is provided with fastening platform and fastening nut, the corresponding end surface of fastening platform and fastening nut is matched with both sides of door respectively to form the fixation between adjusting column and door, one end of the adjusting column protrudes from the outside of door and is provided with operating hole at the side end part.The beneficial effects of the utility model are: the technical scheme realizes the adjustability of guide rail body in the thickness direction of door through the threaded connection of adjusting column and connecting hole and the cooperation of fastening platform and fastening nut, thereby improving the convenience of installation and maintenance.

Description

Technical Field

[0001] This utility model relates to a car door accessory, and more particularly to an adjustable guide rail for a window regulator. Background Technology

[0002] In the automotive industry, frameless doors are widely used in sports cars, luxury cars, and electric vehicles due to their stylish appearance, wide field of vision, and aerodynamic advantages. The window regulator, as a key component, is responsible for opening and closing the window, ensuring driving comfort and airtightness. In a frameless door structure, the window glass is directly exposed, lacking the support of a traditional frame. The regulator guides the glass along the door's height (vertical axis) via a guide rail system. During operation, when the user operates the switch, a motor drives the lifting arm or steel cable, causing the glass to slide smoothly within the guide rail, achieving the lifting action. During assembly, the glass must be precisely fixed to the regulator and aligned with the door seals to prevent water leakage or wind noise. During maintenance, the glass may need to be disassembled and readjusted to compensate for installation errors or wear. The entire system relies on the rigidity and precision of the guide rails to provide stable motion control and load support, ensuring reliable window operation even under extreme conditions. This process involves frequent manual adjustments to match the vehicle's geometry.

[0003] However, existing window regulator technology has significant shortcomings, especially in frameless door applications. Since the door lacks a frame to laterally restrain the glass, precise adjustment of the glass along the door's thickness direction (i.e., the y-axis perpendicular to the door plane) during assembly and maintenance is crucial, as it affects whether the glass aligns with the door's top sealing strip when raised to the top. Current window regulator guide rail designs primarily focus on guiding the glass's vertical movement, but lack sufficient support for y-axis adjustment mechanisms, resulting in a complex, time-consuming, and error-prone adjustment process. Engineers must manually tighten or loosen bolts or use auxiliary tools for fine-tuning, often failing to achieve precise alignment and easily causing mismatch between the glass and sealing strip, leading to problems such as leaks, increased wind noise, or glass breakage. This not only increases maintenance costs but also affects the vehicle's overall sealing and user experience, necessitating improvements to the guide rail structure to simplify the adjustment process. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides an adjustable guide rail for a window regulator that facilitates adjustment of its position along the thickness direction of the car door.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an adjustable guide rail for a window regulator, comprising a guide rail body for engaging with a sliding plate, pulleys for engaging with a drive rope at both ends of the guide rail body, connecting holes at both ends of the guide rail body relative to the outer side of the pulleys, the connecting holes for engaging with corresponding positions on a car door to fix the guide rail body to the car door, and an adjusting column for threaded connection with the connecting holes, the adjusting column being provided with a fastening platform and a fastening nut, the corresponding end faces of the fastening platform and the fastening nut engaging with both sides of the car door to fix the adjusting column to the car door, one end of the adjusting column protruding outside the car door and having an operating hole at that end.

[0006] The beneficial effects of this utility model are as follows: This technical solution achieves the adjustability of the guide rail body in the thickness direction of the car door through the threaded connection between the adjusting column and the connecting hole, and the cooperation of the fastening table and the fastening nut, thereby improving the convenience of installation and maintenance. Specifically, the operating hole is located on the outside of the car door, which facilitates operation directly with tools (such as screwdrivers) after the car frame is removed, without loosening the fastening nut. This avoids the time waste and component wear caused by repeated disassembly. In addition, this design ensures precise fine-tuning of the guide rail position, which helps to ensure smooth operation of the window lifting and reducing jamming or noise problems caused by positional deviation. As a preferred method, the adjusting column adopts a double-threaded structure, with one end engaging with the internal thread of the connecting hole, and the other end receiving the rotational force of the tool through the operating hole. When the tool rotates the operating hole, the adjusting column moves axially under the action of the thread, driving the guide rail body to translate along the thickness direction of the car door, thereby realizing the adjustment process without tool contact with the fastening components. This simplifies the operation steps. For example, during maintenance, only external tools are needed to complete the position calibration, improving the reliability and service life of the system. Meanwhile, this structure also enhances the stability of the guide rail, as the fastening platform and fastening nut clamp both sides of the door, creating a uniform force distribution and preventing loosening caused by vibration. Overall, this solution optimizes the adjustment mechanism, reduces the need for manual intervention, and improves the overall performance of the window regulator.

[0007] Furthermore, a first connector and a second connector are respectively provided at the connection holes located on the lower side of the glass lifting direction and on the upper side of the glass lifting direction. The first connector and the second connector are respectively provided with a first threaded hole and a second threaded hole. The axial distance between the first threaded hole and the second threaded hole is greater than the thickness of the guide rail body.

[0008] This technical solution significantly expands the adjustment range of the guide rail body by setting up a first connector and a second connector, and ensuring that the axial distance between the first and second threaded holes is greater than the thickness of the guide rail body. This allows the adjusting column to obtain a larger axial displacement space when rotating, thereby adapting to different door thicknesses or installation errors, and improving the system's versatility and installation flexibility. For example, in thicker door structures, this design provides sufficient adjustment margin, avoiding adjustment failures due to space constraints. As a preferred embodiment, the first and second connectors adopt an extended threaded sleeve structure with an internal thread depth greater than the standard value; when the adjusting column is screwed in, the length of the threaded hole allows the adjusting column to rotate multiple times, thereby achieving continuous linear movement of the guide rail body within the limited door space, maximizing the range of position adjustment. This directly solves the problem of insufficient adjustment range in the prior art, such as easily compensating for tolerance accumulation during assembly, ensuring precise alignment of the glass lifting trajectory, reducing rework rates, and improving operational efficiency. In addition, this structure also enhances connection strength because the extended design of the threaded holes distributes the load, reduces the risk of stress concentration, and extends the service life of the components.

[0009] Furthermore, a baffle is provided on the second connector facing the direction of glass movement, and an insertion hole is provided on the baffle. A first limiting buffer post is engaged in the insertion hole, and the first limiting buffer post is positioned within the movement range of the glass.

[0010] This technical solution effectively prevents the glass from exceeding its movement limits during lifting by combining a baffle and a first limiting buffer post, while reducing impact noise and vibration. Specifically, the baffle is fixed to the second connector, providing support for the first limiting buffer post, while the elastic material (such as rubber or polyurethane) of the buffer post absorbs the impact energy of the glass, preventing component damage or abnormal noise caused by hard collisions. For example, when the glass rises to its limit position, the buffer post acts as a soft stop, protecting the glass edges from damage. As a preferred embodiment, the first limiting buffer post adopts a detachable elastic plunger structure, with its base embedded in the insertion hole via a snap-fit ​​mechanism and filled with damping material. When the glass contacts the buffer post, the material compresses and deforms to disperse the impact force, and then rebounds to its original position, ensuring the limiting function while maintaining silent operation. This design is particularly suitable for high-frequency lifting scenarios, improving user comfort and system durability. In addition, the baffle enhances the rigidity of the overall structure, preventing the glass from shifting during the movement path and further optimizing the smoothness of the lifting process.

[0011] Furthermore, a second limiting buffer post is engaged on the guide rail body, and the second limiting buffer post is positioned within the movement range of the glass.

[0012] This technical solution, through the cooperation of the second and first limiting buffer posts, forms an upper and lower limiting system for glass lifting, providing comprehensive motion protection and noise reduction. The second limiting buffer post is directly snapped onto the guide rail body, located at the lower end or key position of the glass movement path. It effectively absorbs the impact force when the glass descends, preventing structural damage or abnormal noise caused by the glass hitting the guide rail body. For example, when the glass reaches its lowest point, the elastic deformation of the buffer post slows down the impact, extending the service life of the glass and the guide rail. As a preferred approach, the second limiting buffer post adopts a modular design, including an elastic sleeve and a snap-fit ​​protrusion. The protrusion is fixed by embedding into the slot of the guide rail body; when the glass contacts the glass, the sleeve compresses to store energy and rebounds after the load is removed, enabling tool-less quick replacement and maintenance. This solution not only complements the function of the first limiting buffer post but also ensures uniform buffering throughout the lifting path, reducing vibration propagation and improving the reliability and safety of the system. At the same time, the snap-fit ​​design simplifies the installation process and reduces manufacturing costs.

[0013] Furthermore, the guide rail body is provided with a pulley groove for placing a pulley, the pulley groove is located outside the movement path of the glass lifting and lowering, and the pulley is located at the center of the pulley groove; it also includes a guide hole, the axis of which coincides with the tangent of the outer peripheral surface of the pulley.

[0014] This technical solution, through the optimized arrangement of pulley grooves and guide holes, avoids interference during glass lifting and lowering, and improves the transmission efficiency of the drive rope. The pulley grooves are positioned outside the glass's movement path, ensuring that the pulley does not contact the glass during rotation, preventing jamming or wear. Simultaneously, the guide holes are aligned with the pulley tangent, optimizing the rope's entry angle and reducing friction loss and energy dissipation. For example, this design allows the rope to smoothly transition from the guide hole to the pulley surface, improving the transmission efficiency of lifting force. As a preferred approach, the guide hole employs a tapered inlet structure with a smooth inner wall to reduce rope wear. When the rope passes through the guide hole, the coincidence of its axis with the pulley tangent ensures that the rope always winds around the pulley at a minimal deflection angle, directly reducing bending stress and slippage risk, and enhancing transmission stability and accuracy. This structure is particularly suitable for high-load conditions, improving the response speed and reliability of glass lifting. Furthermore, the centered positioning of the pulley grooves ensures uniform force distribution on the pulley, extending its lifespan.

[0015] Furthermore, the number of guide holes is one or more, and the axes of the different guide holes form an included angle.

[0016] This technical solution further optimizes the entry angle of the drive rope by setting multiple guide holes and their included angles, providing greater flexibility in adjusting transmission efficiency. The included angles of the axes of different guide holes allow for the selection of the optimal path to adapt to various door structures or rope layouts, thereby reducing rope bending resistance and wear. For example, during the testing phase, different guide holes can be tried to determine the most efficient rope path, ensuring smooth and efficient lifting operations. As a preferred approach, the guide hole array adopts a radial arrangement, with the axes of each hole distributed at an included angle of 5-15 degrees. When the rope is inserted, the user selects the hole position according to actual needs, so that the rope and pulley form the optimal contact angle. This avoids the limitations of a single angle and significantly improves transmission performance. This design also simplifies the installation and commissioning process, such as enabling rapid configuration optimization in complex door environments, reducing energy consumption and extending rope lifespan. Simultaneously, the included angle design enhances the system's adaptability, making it suitable for customized needs of different vehicle models.

[0017] Furthermore, it also includes a guide sleeve, on both sides of which are provided with snap-fit ​​parts. The guide sleeve is fixed to the guide rail body by snapping it with the snap-fit ​​parts, and the guide hole is provided at the center of the guide sleeve.

[0018] This technical solution, through the introduction of a guide sleeve, provides additional rope protection and guidance, preventing damage caused by direct contact between the drive rope and the guide rail body during rotation. The guide sleeve is fixed to the guide rail body via a snap-fit ​​mechanism, ensuring the guide hole is centered. This maintains the straight path of the rope and reduces friction. For example, this design avoids the risk of rope wear or breakage during high-speed lifting. As a preferred option, the guide sleeve is made of a wear-resistant polymer material, and the snap-fit ​​mechanism is a flexible hook structure that can quickly engage with the corresponding slot in the guide rail body. When the rope passes through the center hole of the guide sleeve, the sleeve isolates the rope from contact with the metal guide rail, and the smooth inner wall reduces wear, extending rope life and improving system reliability. This solution also simplifies maintenance because the guide sleeve is removable and replaceable, eliminating the need for complete guide rail disassembly. Simultaneously, the center hole setting ensures the accuracy of rope guidance and optimizes transmission efficiency in conjunction with pulleys. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model; Figure 2 This is a partial enlarged view of the adjusting column in an embodiment of the present invention; Figure 3 This is a partial enlarged view of the second connector in an embodiment of this utility model; Figure 4 This is a partial enlarged view of the lower limit of the glass movement range in an embodiment of this utility model. Detailed Implementation

[0020] This utility model embodiment provides an adjustable guide rail for a window lifter, such as... Figure 1-4 The device includes a guide rail body 11, which engages with a sliding plate to guide the glass's vertical movement. The sliding plate, a standard component in the prior art, is fixed to the edge of the glass, and the glass moves up and down through a sliding engagement. Pulleys 111 are provided at both ends of the guide rail body 11, engaging with a drive rope, typically driven by a motor to provide lifting power. Connecting holes 112 are provided at both ends of the guide rail body 11 relative to the outer sides of the pulleys 111, engaging with corresponding positions on the car door to form a preliminary fixed connection between the guide rail body 11 and the car door. An adjusting column 12 is also included, with a threaded connection between the adjusting column 12 and the connecting holes 112 for adjustability. A fastening platform 121 and a fastening nut 122 are provided on the adjusting column 12, with corresponding end faces engaging with the sides of the car door. When the fastening nut 122 is tightened, a stable fixation is achieved between the adjusting column 12 and the car door. One end of the adjustment column 12 protrudes outside the door, and an operation hole 123 is provided at this end to facilitate tool operation.

[0021] A first connector 13 is provided at the connection hole 112 located on the lower side of the glass lifting direction, and a second connector 14 is provided at the connection hole 112 located on the upper side of the glass lifting direction. The first connector 13 and the second connector 14 are used to enhance the connection strength and provide adjustment function, respectively. The first connector 13 is provided with a first threaded hole 131, and the second connector 14 is provided with a second threaded hole 141. The axial distance between the first threaded hole 131 and the second threaded hole 141 is greater than the thickness of the guide rail body 11. This design allows the adjusting column 12 to provide a larger adjustment range when rotating. A baffle 142 is provided on the second connector 14 facing the glass movement direction. The baffle 142 is used to limit the glass movement path. The baffle 142 is provided with an insertion hole 1421, and a first limiting buffer column 1422 is engaged in the insertion hole 1421. The first limiting buffer column 1422 is positioned within the glass movement range to prevent the glass from rising beyond the limit position and to provide cushioning. The guide rail body 11 is also fitted with a second limiting buffer post 15. The second limiting buffer post 15 is also located within the movement range of the glass, and works with the first limiting buffer post 1422 to form upper and lower limiting and buffering functions.

[0022] The guide rail body 11 is provided with a pulley groove 16 for placing a pulley 111. The pulley groove 16 is located outside the movement path of the glass lifting mechanism to avoid interference. The pulley 111 is located at the center of the pulley groove 16 to optimize rope transmission. It also includes a guide hole 17, the axis of which coincides with the tangent of the outer circumference of the pulley 111, to change the angle at which the drive rope enters the guide rail body 11, thereby improving transmission efficiency. There is one or more guide holes 17, and the axes of different guide holes 17 form an included angle, facilitating the testing and selection of the optimal transmission angle. It also includes a guide sleeve 18, with locking parts 181 on both sides. The guide sleeve 18 is fixed to the guide rail body 11 by locking the locking parts 181. The guide hole 17 is located at the center of the guide sleeve 18 to protect the drive rope from wear.

[0023] The working principle of this embodiment is as follows: During installation, the guide rail body 11 is fixed to the car door through the connecting hole 112 and the adjusting column 12. The fastening platform 121 and the fastening nut 122 are locked on both sides of the car door to ensure stability. When it is necessary to adjust the position of the guide rail body 11 along the thickness direction of the car door, after removing the car frame, without moving the fastening nut 122, use a screwdriver or other tools to operate the operating hole 123 to rotate the adjusting column 12. The threaded connection of the adjusting column 12 drives the guide rail body 11 to move. The axial distance between the first threaded hole 131 and the second threaded hole 141 is greater than the thickness of the guide rail body 11, which expands the adjustment range to adapt to different car door structures. During the glass lifting process, the drive rope drives the pulley 111 to rotate, and the glass slides on the guide rail body 11 through the sliding plate. The first limit buffer column 1422 and the second limit buffer column 15 provide buffer when the glass moves to the upper and lower limit positions to prevent impact and noise and ensure safe limiting. The drive rope enters the pulley 111 through the guide hole 17. The guide hole 17 and the tangent of the pulley 111 are aligned to optimize the angle. The guide sleeve 18 prevents the rope from being damaged by friction with the guide rail body 11. Multiple guide holes 17 allow for testing different angles to improve efficiency. The snap-fit ​​part 181 of the guide sleeve 18 ensures stable fixation.

[0024] The above embodiments are merely one preferred embodiment of the present utility model. Ordinary changes and substitutions made by those skilled in the art within the scope of the present utility model's technical solution are all included within the protection scope of the present utility model.

Claims

1. An adjustable guide rail for a window regulator, comprising a guide rail body for engaging with a sliding plate, wherein pulleys for engaging with a drive rope are respectively provided at both ends of the guide rail body, and connecting holes are provided at both ends of the guide rail body relative to the outer side of the pulleys, the connecting holes being used to engage with corresponding positions on a car door to form a fixation between the guide rail body and the car door, characterized in that: It also includes an adjusting column that forms a threaded connection with the connecting hole. The adjusting column is provided with a fastening platform and a fastening nut. The corresponding end faces of the fastening platform and the fastening nut respectively cooperate with the two sides of the car door to form a fixation between the adjusting column and the car door. One end of the adjusting column protrudes out of the car door and is provided with an operating hole at that end.

2. The adjustable guide rail for the glass lifter according to claim 1, characterized in that: A first connector and a second connector are respectively provided at the connection holes located on the lower side of the glass lifting direction and on the upper side of the glass lifting direction. The first connector and the second connector are respectively provided with a first threaded hole and a second threaded hole. The axial distance between the first threaded hole and the second threaded hole is greater than the thickness of the guide rail body.

3. The adjustable guide rail for the glass lifter according to claim 2, characterized in that: The second connector has a baffle plate facing the direction of glass movement. The baffle plate has an insertion hole, and a first limiting buffer post is engaged in the insertion hole. The first limiting buffer post is positioned within the movement range of the glass.

4. The adjustable guide rail for the glass lifter according to claim 1 or 3, characterized in that: The guide rail body is fitted with a second limiting buffer post, and the second limiting buffer post is positioned within the movement range of the glass.

5. The adjustable guide rail for the glass lifter according to claim 1, characterized in that: The guide rail body is provided with a pulley groove for placing a pulley. The pulley groove is located outside the movement path of the glass lifting and lowering, and the pulley is located at the center of the pulley groove. It also includes a guide hole, the axis of which coincides with the tangent of the outer peripheral surface of the pulley.

6. The adjustable guide rail for the glass lifter according to claim 5, characterized in that: The number of guide holes is one or more, and the axes of the different guide holes form an angle.

7. The adjustable guide rail for the glass lifter according to claim 5, characterized in that: It also includes a guide sleeve, which has snap-fit ​​parts on both sides. The guide sleeve is fixed to the guide rail body by snapping it with the snap-fit ​​parts, and the guide hole is located at the center of the guide sleeve.

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