Tension adjustment device and window lifting device equipped with tension adjustment device

Abstract

A tension adjustment device is provided. [Solution] The tension adjustment device includes an adjustment rod, a sleeve assembly member, and a spring. The adjustment rod has a first abutment portion and a ratchet strip. The ratchet strip has multiple gear grooves, each with a stop surface and an inclined surface. The sleeve assembly member includes an outer tube and an inner tube. A second abutment portion is provided on the outer wall of the outer tube, and a stopper is provided on the outer tube, the stopper having an elastic arm and a hook portion. The stop side of the hook portion abuts against the stop surface and engages with one of the gear grooves. The spring is clamped and preloaded between the first abutment portion and the second abutment portion. When the adjustment rod is extended from the sleeve assembly member, the hook portion moves to the other gear groove, and the stop side abuts against the stop surface of the gear groove with which the hook portion engages, and one end of the inner tube abuts against the opposite side of the stop side of the hook portion.

Description

[Technical Field]

[0001] The present invention relates to a window lifting device, and more particularly to a tension regulator having a reinforced stopper structure and a window lifting device having a tension regulator. [Background technology]

[0002] A window lifting device is a common feature found on vehicles. It uses a rope to pull the window up and down, allowing the vehicle occupants to operate the window lifting device from inside the vehicle to open or close the window. Summary of the Invention [Problem to be solved by the invention]

[0003] However, with the above-described conventional technology, after a certain period of use of the window lifting device, the rope becomes loose, making it impossible to raise and lower the window to open and close normally, or causing it to stop operating smoothly.

[0004] For this reason, window lifting devices are generally provided with a tension adjustment device that tensions the rope by combining a cylinder through which the adjustment rod passes and a spring, and the relative positions of the cylinder and the adjustment rod are fixed by engaging a stopper and a ratchet strip. However, when the window lifting device is operated, the rope is subjected to a large force, which shortens the life of the stopper and makes it more likely to break, and if the stopper breaks, the tension adjustment device will no longer function.

[0005] Therefore, the present inventors believed that the above drawbacks could be improved, and as a result of extensive research, they came up with the proposal of the present invention, which effectively improves the above problems through rational design.

[0006] In view of the above-described state of the art, an object of the present invention is to provide a tension adjusting device having a reinforced stopper structure. [Means for solving the problem]

[0007] To solve the above problems, one aspect of the present invention provides a tension adjustment device comprising an adjustment rod, a sleeve assembly, and a spring. The adjustment rod is provided with a first abutment portion and a ratchet strip, the ratchet strip having a plurality of gear grooves, each of which has a stop surface and an inclined surface arranged in opposite directions. The sleeve assembly is attached to cover the adjustment rod and includes an outer tube and an inner tube disposed within the outer tube. A second abutment portion is provided on the outer wall of the outer tube. The outer tube is provided with a stopper having a resilient arm and a hook portion attached to the resilient arm, the hook portion having a stop side portion. The stop side portion abuts against the stop surface, and the hook portion engages with one of the gear grooves. The spring is attached to cover the outer tube and is sandwiched between the first abutment portion and the second abutment portion, and is preloaded. When the adjustment rod is extended from the sleeve assembly member, the hook portion moves along the inclined surface of one of the gear grooves with which it is engaged to another one of the gear grooves, and the stop side portion abuts against the stop surface of one of the gear grooves with which the hook portion is engaged, and one end of the inner cylinder abuts against the opposite side portion of the stop side of the hook portion.

[0008] According to one aspect of the present invention, the adjustment rod has an engagement slot extending along the circumferential direction of the adjustment rod, and the outer cylinder has an engagement protrusion that can be engaged with the engagement slot, and by engaging the engagement protrusion with the engagement slot, the adjustment rod and the sleeve assembly are fixed in the longitudinal direction of the sleeve assembly. The engagement slot has an opening, and when the engagement protrusion is disengaged from the engagement slot by the opening, the adjustment rod and the sleeve assembly are movable relative to each other.

[0009] According to one aspect of the invention, the opening is located at one end of the engagement slot.

[0010] According to one aspect of the present invention, the opening is arranged so that the opening direction of the opening is along the longitudinal direction of the adjustment rod.

[0011] According to one aspect of the present invention, the opening is arranged so that the opening direction of the opening is along the circumferential direction of the adjustment rod.

[0012] According to one aspect of the present invention, the inner cylinder is mounted to cover the adjustment rod.

[0013] According to one aspect of the present invention, the ratchet strip is recessed into the outer wall of the adjustment rod, and the outer wall of the adjustment rod is provided with a mounting surface that extends parallel to the longitudinal direction of the ratchet strip and extends beyond both ends of the ratchet strip. The adjustment rod is provided with a plurality of ratchet strips and a plurality of mounting surfaces, and the plurality of ratchet strips are arranged in an annular pattern along the circumferential direction of the adjustment rod. One mounting surface is located between one ratchet strip and an adjacent ratchet strip.

[0014] According to one aspect of the present invention, the stopper is integrally molded with the outer barrel.

[0015] According to one aspect of the present invention, a protrusion is formed on one end of the adjustment rod, and the first contact portion is provided on the protrusion.

[0016] Another aspect of the present invention is a window lifting device. This device includes an adjustment rod, an outer cylinder, a spring, and a drive unit. The adjustment rod is provided with a first abutment portion and a ratchet strip, and the ratchet strip has multiple gear grooves, each of which has a stop surface and an inclined surface arranged in opposite directions. The outer cylinder is attached to cover an inner cylinder provided within the adjustment rod and the outer cylinder, and a second abutment portion is provided on the outer wall of the outer cylinder. The outer cylinder is provided with a stopper having a resilient arm and a hook portion provided on the resilient arm, and the hook portion has a stop side portion. The stop side portion abuts against the stop surface, and the hook portion is engaged with one of the multiple gear grooves. The spring is attached to cover the outer cylinder, and is sandwiched between the first abutment portion and the second abutment portion and preloaded. The drive unit includes a housing in which the inner cylinder is installed, and the inner cylinder is inserted into the outer cylinder. When the adjustment rod is extended from the outer tube, the hook portion moves to another gear groove due to the inclined surface of the gear groove with which it is engaged, and the stop side portion abuts against the stop surface of the gear groove with which the hook portion is engaged, and one end of the inner tube is butted against the opposite side portion of the stop side portion of the hook portion.

[0017] According to one aspect of the present invention, the adjustment rod has an engagement slot extending along the circumferential direction of the adjustment rod, and the outer cylinder has an engagement protrusion that can be engaged with the engagement slot, and by engaging the engagement protrusion with the engagement slot, the adjustment rod and the outer cylinder are fixed in the longitudinal direction of the outer cylinder.

[0018] According to one aspect of the present invention, the engagement slot has an opening, and when the engagement protrusion is disengaged from the engagement slot by the opening, the adjustment rod and the outer barrel are movable relative to each other.

[0019] According to one aspect of the invention, the opening is located at one end of the engagement slot.

[0020] According to one aspect of the present invention, the opening is arranged so that the opening direction of the opening is along the longitudinal direction of the adjustment rod.

[0021] According to one aspect of the present invention, the opening is arranged so that the opening direction of the opening is along the circumferential direction of the adjustment rod.

[0022] According to one aspect of the present invention, the inner cylinder is mounted to cover the adjustment rod.

[0023] According to one aspect of the present invention, the ratchet strip is recessed into the outer wall of the adjustment rod, and the outer wall of the adjustment rod is provided with a mounting surface that extends parallel to the longitudinal direction of the ratchet strip and extends beyond both ends of the ratchet strip. The adjustment rod is provided with a plurality of ratchet strips and a plurality of mounting surfaces, and the plurality of ratchet strips are arranged in an annular pattern along the circumferential direction of the adjustment rod. One mounting surface is located between one ratchet strip and an adjacent ratchet strip.

[0024] According to one aspect of the present invention, the stopper is integrally molded with the outer barrel.

[0025] According to one aspect of the present invention, a protrusion is formed on one end of the adjustment rod, and the first contact portion is provided on the protrusion.

[0026] According to one aspect of the present invention, the inner cylinder is integrally molded with the housing. [Effects of the Invention]

[0027] The tension adjusting device and window lifting device of the present invention tensions the rope by combining the relative extension and contraction of the adjusting rod and outer cylinder, the outer cylinder is equipped with a stopper, and the relative position of the adjusting rod and outer cylinder is fixed by a ratchet strip engaged with the adjusting rod, and an inner cylinder is installed inside the outer cylinder to support the stopper so as to prevent it from breaking when the rope is pulled.

[0028] At least the following points will become clear from the description and drawings to be described later. [Brief explanation of the drawings]

[0029] [Figure 1] 1 is an exploded perspective view schematically illustrating a tension adjusting device according to a first embodiment of the present invention. [Figure 2] 1 is a perspective view schematically illustrating a tension adjusting device according to a first embodiment of the present invention. [Figure 3] 1 is a vertical cross-sectional view schematically showing the installation of a tension adjusting device according to a first embodiment of the present invention. [Figure 4] 1 is a vertical cross-sectional view schematically showing the installation of a tension adjusting device according to a first embodiment of the present invention. [Figure 5] 1 is a diagram showing a schematic view of the installation of a tension adjusting device according to a first embodiment of the present invention; [Figure 6] 1 is a diagram showing a schematic view of a tension adjusting device according to a first embodiment of the present invention in use; [Figure 7] 1 is a longitudinal sectional view schematically showing a state in which a tension adjusting device according to a first embodiment of the present invention is used. [Figure 8] 1 is a diagram showing a schematic view of a tension adjusting device according to a first embodiment of the present invention in use; [Figure 9] 1 is a vertical cross-sectional view schematically showing a state in which a tension adjusting device according to a first embodiment of the present invention is used. [Figure 10] FIG. 6 is a vertical cross-sectional view schematically showing a window lifting device according to a second embodiment of the present invention. [Figure 11] FIG. 10 is an exploded perspective view schematically illustrating a tension adjusting device according to a third embodiment of the present invention. [Figure 12] FIG. 10 is a vertical cross-sectional view showing a tension adjusting device according to a third embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0030] The present invention will be described below through embodiments of the invention, but the following embodiments do not limit the invention described in the claims. Furthermore, not all of the combinations of features described in the embodiments are necessarily essential to the solution of the invention.

[0031] (First Example) A tension adjusting device according to a first embodiment of the present invention is shown in Figures 1 and 2. In this embodiment, the tension adjusting device comprises an adjusting rod 100, a sleeve assembly 200, and a spring 300.

[0032] The adjustment rod 100 is provided with a first abutment portion 101 and a ratchet strip 102. In this embodiment, a protrusion 130 is formed at one end of the adjustment rod 100. Furthermore, the first abutment portion 101 is provided on the protrusion 130. The ratchet strip 102 has a plurality of gear grooves 110, and each gear groove 110 has a stop surface 111 and an inclined surface 112 arranged in opposite directions. The stop surface 111 is approximately perpendicular to the axial direction of the adjustment rod 100, and the inclined surface 112 is arranged inclined with respect to the axial direction of the adjustment rod 100 and forms an obtuse outer angle. In this embodiment, the ratchet strip 102 is recessed into the outer wall of the adjustment rod 100, and a mounting surface 120 is formed on the outer wall of the adjustment rod 100. The mounting surface 120 extends parallel to the longitudinal direction of the ratchet strip 102 and extends beyond both ends of the ratchet strip 102. In this embodiment, the adjustment rod 100 is provided with a plurality of ratchet strips 102 and a plurality of mounting surfaces 120. These ratchet strips 102 are arranged in an annular pattern along the circumferential direction of the adjustment rod 100. One mounting surface 120 is disposed between one ratchet strip 102 and another adjacent ratchet strip 102.

[0033] The sleeve assembly member 200 is attached to cover the adjustment rod 100. Furthermore, the adjustment rod 100 and the sleeve assembly member 200 are movable relative to each other. The sleeve assembly member 200 includes an outer tube 210 and an inner tube 240. Specifically, the inner tube 240 is provided inside the outer tube 210, and the inner tube 240 is attached to cover the adjustment rod 100. A second abutment portion 201 is provided on the outer wall of the outer tube 210, and a stopper 202 is also provided on the outer tube 210. In this embodiment, the stopper 202 is integrally molded with the outer tube 210. The stopper 202 has a resilient arm 220 and a hook portion 230 provided on the resilient arm 220.

[0034] The spring 300 is attached to cover the outer cylinder 210, and is sandwiched between the first contact portion 101 and the second contact portion 201 and is preloaded.

[0035] The adjustment rod 100 has an engagement slot 103 extending along the circumferential direction of the adjustment rod 100, and an engagement protrusion 211 is provided on the outer cylinder 210. The engagement protrusion 211 can be engaged with the engagement slot 103, and by engaging the engagement protrusion 211 with the engagement slot 103, the adjustment rod 100 and the sleeve assembly member 200 are fixed in place in the longitudinal direction of the sleeve assembly member 200. In this embodiment, the engagement protrusion 211 has a convex column shape, and the engagement slot 103 has an opening 104. When the adjustment rod 100 rotates, the engagement protrusion 211 disengages from the engagement slot 103 through the opening 104, allowing the adjustment rod 100 and the sleeve assembly member 200 to move relative to each other. In this embodiment, the opening 104 is located at one end of the engagement slot 103 and is arranged so that the opening direction of the opening 104 is aligned with the longitudinal direction of the adjustment rod 100.

[0036] As shown in FIG. 3 , when installing the tension adjustment device, first, the hook portion 230 of the stopper(s) 202 on the outer tube 210 is aligned with the corresponding mounting surface(s) 120 of the adjusting rod 100. Next, the outer tube 210 is attached to the adjusting rod 100. During the process of attaching the outer tube 210 to the adjusting rod 100, the stopper 202 is slid against the corresponding mounting surface 120, and the engaging protrusion 211 of the outer tube 210 is engaged with the engaging slot 103, thereby securing the outer tube 210 to the adjusting rod 100. The inner tube 240 is assembled to the outer tube 210 before the outer tube 210 is attached to the adjusting rod 100, but it may also be assembled to the outer tube 210 after the outer tube 210 is attached to the adjusting rod 100.

[0037] 4, one end of the tension adjustment device is connected to one end of a wiring tube 500. Specifically, one end of the wiring tube 500 is connected to the adjusting rod 100, and the wiring tube 500 is arranged to extend along the axial direction of the adjusting rod 100. The adjusting rod 100 has an axial jack 105 at its end connected to the wiring tube 500 for inserting the wiring tube 500 into the adjusting rod 100. A rope 510 is installed through the wiring tube 500, and the rope 510 passes through the wiring tube 500 and then passes through the adjusting rod 100 along the axial direction of the adjusting rod 100.

[0038] As shown in FIG. 5 , in this embodiment, a tensioning device is disposed between the drive device 400 and the wiring tube 500 to tension the rope 510 passing through the drive device 400 and the wiring tube 500. In a preferred embodiment, the drive device 400 is a rope drive device. The drive device 400 includes a housing 410, which generally houses a drive wheel hub (not shown) and a motor (not shown) for driving the drive wheel hub to rotate. At the other end of the tensioning device, the drive device 400 drives the rope to lift and lower the window glass, and the sleeve assembly member 200 abuts against the housing 410 of the drive device 400. Specifically, the inner tube 240 has a bottom end 241 and a top end 242 opposite the bottom end 241, and the bottom end 241 of the inner tube 240 abuts against the housing 410 of the drive device 400. The rope 510 passes through the wiring tube 500 and then through the adjusting rod 100 along the axial direction of the adjusting rod 100. The rope 510 then penetrates the housing 410 of the drive unit 400 and wraps around the drive wheel hub. In this embodiment, the sleeve assembly member 200 may further include a wire tube 250, one end of which is inserted through the adjusting rod 100 in the axial direction, and the other end of which is inserted through the case body. The wire tube 250 guides the rope 510 so that it penetrates into the housing 410 of the drive unit 400. The wire tube 250 is also integrally molded with the inner tube 240.

[0039] 6, by rotating the adjustment rod 100, the engagement protrusion 211 moves to the position of the opening 104 corresponding to the engagement slot 103, and simultaneously, the hook portion 230 of the stopper 202 moves away from the corresponding mounting surface 120 until it is aligned with the corresponding ratchet strip 102. The spring 300 is preloaded, and its elastic force urges the adjustment rod 100 and the sleeve assembly 200 to move relative to each other. In this way, the adjustment rod 100 extends from the sleeve assembly 200.

[0040] As shown in FIG. 7 , the tension adjustment device is released, and the spring 300 pushes the adjustment rod 100 outward from the outer tube 210 along the axial direction of the outer tube 210. At the same time, the engagement protrusion 211 disengages from the engagement slot 103 through the opening 104, and the hook portion 230 of the stopper 202 engages with the corresponding ratchet strip 102. As the adjustment rod 100 and the sleeve assembly 200 move relative to each other, the hook portion 230 can engage with one of the gear grooves 110. The hook portion 230 has a stop side 231. The stop side 231 abuts against the stop surface 111 to prevent the adjustment rod 100 from being inserted into the sleeve assembly 200, thereby fixing the relative positions of the adjustment rod 100 and the sleeve assembly 200. The top end 242 of the inner tube 240 abuts against the opposite side of the stop side 231 of the hook portion 230 so as to bear the force received when the hook portion 230 prevents the adjustment rod 100 from returning to its original position inside the outer tube 210, thereby maintaining the position of the hook portion 230 in the axial direction of the adjustment rod 100 and preventing the elastic arm 220 from bending due to excessive force received.

[0041] As shown in FIG. 1 , in this embodiment, a positioning channel 213 is provided on the inner wall of the outer tube 210. The positioning channel 213 extends parallel to the longitudinal direction of the outer tube 210. A positioning rib 243 is provided on the outer wall of the inner tube 240. The positioning rib 243 extends parallel to the longitudinal direction of the inner tube 240. The positioning rib 243 is inserted into the positioning channel 213 to prevent the outer tube 210 and the inner tube 240 from rotating relative to each other. When the adjusting rod 100 rotates, the bottom end 241 of the inner tube 240 abuts against the housing 410 of the driving device 400 and can be fixed. The positioning rib 243 and the positioning channel 213 further prevent the outer tube 210 from being driven by the adjusting rod 100, ensuring that the engaging protrusion 211 disengages from the engaging slot 103 as the adjusting rod 100 rotates.

[0042] 8 and 9, when the rope 510 is loosened, the spring 300 pushes the adjusting rod 100 to extend from the sleeve assembly member 200. At this time, the hook portion 230 moves to another gear groove 110 due to the inclined surface 112 of the gear groove 110 with which it is engaged, and the stop side portion 231 abuts against the stop surface 111 of the gear groove 110 with which the hook portion 230 is engaged. In this way, the relative positions of the adjusting rod 100 and the outer tube 210 are fixed again.

[0043] (Second Example) A window lifting device according to a second embodiment of the present invention is shown in FIG. 10. The window lifting device according to the second embodiment of the present invention comprises at least an adjusting rod 100, an outer cylinder 210, a spring 300, and a driving device 400. In the lifting device, the driving device 400 is generally equipped with a device for driving a rope 510, such as a motor (not shown) and a driving wheel hub (not shown), and functions to raise and lower the glass (not shown) in combination with a slide rail (not shown) and a glass position limiting block (not shown). In this embodiment, the structures of the adjusting rod 100, outer cylinder 210, and spring 300 are the same as those described in the first embodiment, and a description of the similar points will be omitted.

[0044] A wiring tube 500 is connected to one end of the adjusting rod 100, and the wiring tube 500 is arranged to extend along the axial direction of the adjusting rod 100. Specifically, the adjusting rod 100 is provided with an axial jack 105 at one end connected to the wiring tube 500 for inserting the wiring tube 500 into the adjusting rod 100. A rope 510 is installed through the wiring tube 500, and the rope 510 passes through the wiring tube 500 and then passes through the adjusting rod 100 along the axial direction of the adjusting rod 100.

[0045] The outer cylinder 210 is attached to cover the adjusting rod 100, and the adjusting rod 100 and the outer cylinder 210 are movable relative to each other. In this embodiment, the driving device 400 includes a housing 410, which generally houses a motor and a drive wheel hub. An inner cylinder 420 is erected on the outer surface of the housing 410, and in this embodiment, the inner cylinder 420 is integrally molded with the housing 410. The outer cylinder 210 abuts against the housing 410 of the driving device 400, and the inner cylinder 420 is inserted through the outer cylinder 210. The inner cylinder 420 is attached to cover the adjusting rod 100. A rope 510 passes through the adjusting rod 100, then enters the housing 410 of the driving device 400, and wraps around the drive wheel hub. In this embodiment, a lead tube 430 is erected on the outer surface of the housing 410. The lead tube 430 is positioned within the inner cylinder 420 and is coaxial with the inner cylinder 420. One end of the lead tube 430 is axially inserted into the adjustment rod 100, and the other end of the lead tube 430 is inserted into the case body. The lead tube 430 is used to guide the rope 510 so that it penetrates into the housing 410 of the driving device 400. The outer cylinder 210 is provided with a stopper 202 having a resilient arm 220 and a hook portion 230 attached to the resilient arm 220. The hook portion 230 can engage with one of the gear grooves 110 as the adjustment rod 100 and the outer cylinder 210 move relative to each other. The hook portion 230 has a stop side portion 231, which abuts against the stop surface 111 to prevent the adjustment rod 100 from being inserted into the outer tube 210, thereby fixing the relative positions of the adjustment rod 100 and the outer tube 210 in the longitudinal direction of the outer tube 210.

[0046] The spring 300 is attached to cover the outer tube 210 and is sandwiched and preloaded between the structure of the adjustment rod 100 and the structure of the outer tube 210. The preload of the spring 300 causes its elasticity to push the adjustment rod 100 and the outer tube 210 relative to each other, causing the adjustment rod 100 to extend from the outer tube 210. When the adjustment rod 100 extends from the outer tube 210, the hook portion 230 moves to another gear groove 110 due to the inclined surface 112 of the gear groove 110 with which it is engaged, and the stop side portion 231 abuts against the stop surface 111 of the gear groove 110 with which the hook portion 230 is engaged, thereby fixing the relative positions of the adjustment rod 100 and the outer tube 210 again. The inner tube 420 has a bottom end 421 and a top end 422 opposite the bottom end 421. The bottom end 421 of the inner tube 420 is connected to the housing 410 of the drive unit 400, and the top end 422 of the inner tube 420 abuts against the opposite side of the stop side 231 of the hook portion 230 so as to bear the force received when the hook portion 230 prevents the adjustment rod 100 from returning to its original position inside the outer tube 210, thereby maintaining the position of the hook portion 230 in the axial direction of the adjustment rod 100 and preventing the elastic arm 220 from bending due to excessive force received.

[0047] (Third Example) A tension adjusting device according to a third embodiment of the present invention is shown in FIGS. 11 and 12. In this embodiment, the tension adjusting device includes an adjustment rod 100, a sleeve assembly 200, and a spring 300. The structures of the adjustment rod 100, the outer tube 210, and the spring 300 are substantially the same as those of the first embodiment, and similar features will not be described in this embodiment. In this embodiment, the adjustment rod 100 has an engagement slot 103a extending along the circumferential direction of the adjustment rod 100, and the outer tube 210 has an engagement protrusion 211a. The engagement protrusion 211a is engageable with the engagement slot 103a, and by engaging the engagement protrusion 211a with the engagement slot 103a, the adjustment rod 100 and the sleeve assembly 200 are fixed in the longitudinal direction of the sleeve assembly 200. In this embodiment, the engagement protrusion 211a has a resilient arm 220 with a hook-like shape, and the engagement slot 103a has an opening 104a. The opening 104a is located at one end of the engagement slot 103a and is arranged such that the opening direction of the opening 104a is along the circumferential direction of the adjustment rod 100. When the engagement protrusion 211a is disengaged from the engagement slot 103a by the opening 104a, the adjustment rod 100 and the sleeve assembly member 200 can move relative to each other. In this embodiment, both ends of the engagement slot 103a have openings 104a, so that the adjustment rod 100 can be released regardless of the direction in which the adjustment rod 100 is rotated.

[0048] More specifically, in this tension adjustment device, the adjusting rod 100 and spring 300 are inserted into the outer tube 210 so as to be attached thereto, and then the adjusting rod 100 is rotated by a certain angle so that the engaging protrusion 211a engages with the engaging slot 103a, and the outer tube 210 is temporarily fastened to the temporary fixed position. After the wiring installation is complete, the adjusting rod 100 is further rotated so that the engaging protrusion 211a disengages from the engaging slot 103a, allowing the outer tube 210 to disengage from the temporary position, and the tension adjustment device has a tensioning function to accommodate slack in the rope.

[0049] In this embodiment, a positioning rib 243 is provided on the outer wall of the inner tube 240, extending parallel to the longitudinal direction of the inner tube 240. The positioning rib 243 is engaged with the inner wall of the outer tube 210 to prevent the outer tube 210 and the inner tube 240 from rotating relative to each other. When the adjusting rod 100 rotates, the bottom end 241 of the inner tube 240 abuts against the housing 410 of the driving device 400 and can be fixed. The positioning rib 243 further prevents the outer tube 210 from being driven by the adjusting rod 100, allowing the engaging protrusion 211 to disengage from the engaging slot 103 as the adjusting rod 100 rotates.

[0050] The tension adjustment device and window lifting device of the present invention tensions the rope 510 by combining the relative extension and contraction movements of the adjustment rod 100 and the outer tube 210, and further, the outer tube 210 is provided with a stopper 202 that engages with the ratchet strip 102 of the adjustment rod 100 to fix the relative position of the adjustment rod 100 and the outer tube 210, and the outer tube 210 is provided with an inner tube 240 that supports the stopper 202 to prevent the stopper 202 from being broken due to force when the rope 510 is pulled.

[0051] The adjusting rod 100 is provided with a circumferential engaging slot 103a which axially fixes the adjusting rod 100 and the outer cylinder 210 so as to be combined with the engaging protrusion 211 of the outer cylinder 210 and prevent the adjusting rod 100 and the outer cylinder 210 from moving, and furthermore, by rotating the outer cylinder 210, the opening 104a of the engaging slot 103a causes the engaging protrusion 211 to move out of the engaging slot 103, thus allowing the adjustment rod 100 to be moved. This facilitates installation.

[0052] The present invention is not limited to the above-described embodiments, and various modifications are possible within the scope of the claims. Embodiments obtained by appropriately combining the technical means disclosed in different embodiments are also included in the technical scope of the present invention. [Explanation of symbols]

[0053] 100 Adjustment Rod 101 1st contact part 102 Ratchet Strip 103 Engagement slot 103a Engagement slot 104 Opening 104a opening 105 Axial Jack 110 gear groove 111 Stopping surface 112 Slope 120 Mounting surface 130 Convex 200 Sleeve assembly member 201 Second contact part 202 Stopper 210 Outer Cylinder 211 Engagement protrusion 211a Engagement protrusion 213 Positioning Channel 220 Elastic Arm 230 Hook part 231 Stop side 240 Inner cylinder 241 Bottom end 242 Apex 243 Positioning rib 250 Conductor Tube 300 springs 400 Drive Unit 410 Housing 420 Inner cylinder 421 Bottom end 422 Apex 430 Conductor tube 500 Wiring Tube 510 Rope

Claims

1. an adjustment rod provided with a ratchet strip having a first abutment portion and a plurality of gear grooves, the adjustment rod having a stop surface and an inclined surface disposed in opposite directions within each of the plurality of gear grooves; A sleeve assembly member that is attached to cover the adjustment rod and includes an outer cylinder and an inner cylinder provided within the outer cylinder, a second contact portion is provided on an outer wall of the outer cylinder; The outer cylinder is provided with a stopper, the stopper has a resilient arm and a hook portion provided on the resilient arm, The hook portion has a stop side, The stop side portion abuts against the stop surface, the sleeve assembly member, wherein the hook portion is engaged with one of the plurality of gear grooves; a spring that is attached to cover the outer cylinder and is sandwiched and preloaded between the first contact portion and the second contact portion, When the adjustment rod is extended from the sleeve assembly member, the hook portion moves to another one of the gear grooves by the inclined surface of one of the gear grooves with which it is engaged, and the stop side portion abuts against the stop surface of one of the gear grooves with which the hook portion is engaged, and one end of the inner cylinder abuts against the opposite side portion of the stop side portion of the hook portion.

2. The adjustment rod has an engagement slot extending circumferentially around the adjustment rod; The outer cylinder is provided with an engaging protrusion, The tension adjustment device according to claim 1, characterized in that the engagement protrusion can be engaged with the engagement slot, and by engaging the engagement protrusion with the engagement slot, the adjustment rod and the sleeve assembly member are fixed in the longitudinal direction of the sleeve assembly member.

3. The engagement slot has an opening; 3. The tension adjusting device of claim 2, wherein the adjustment rod and the sleeve assembly are movable relative to each other when the engaging projection is disengaged from the engaging slot by the opening.

4. 4. The tensioning device of claim 3, wherein the opening is located at one end of the engagement slot.

5. 4. The tension adjusting device according to claim 3, wherein the opening is arranged so that the opening direction is along the longitudinal direction of the adjusting rod.

6. 4. The tension adjusting device according to claim 3, wherein the opening is arranged so that the opening direction is along the circumferential direction of the adjusting rod.

7. 2. The tension adjusting device according to claim 1, wherein the inner cylinder is attached to cover the adjusting rod.

8. The ratchet strip is recessed into the outer wall of the adjustment rod, An outer wall of the adjustment rod is provided with a mounting surface; 2. The tension adjusting device of claim 1, wherein the mounting surface extends parallel to the length of the ratchet strip and extends beyond both ends of the ratchet strip.

9. The adjustment rod is provided with a plurality of ratchet strips and a plurality of mounting surfaces; The tension adjusting device according to claim 8, wherein the plurality of ratchet strips are arranged in a ring shape along the circumferential direction of the adjustment rod, and one of the mounting surfaces is disposed between one of the ratchet strips and another adjacent ratchet strip.

10. 2. The tension adjusting device according to claim 1, wherein the stopper is integrally formed with the outer cylinder.

11. A protrusion is formed on one end of the adjustment rod, The tension adjusting device according to claim 1 , wherein the first contact portion is provided on the protrusion.

12. an adjustment rod having a ratchet strip with a first abutment and a plurality of gear grooves, the adjustment rod having a stop surface and an inclined surface disposed in opposite directions within the plurality of gear grooves; An outer cylinder is attached to cover the adjustment rod, has a second abutment portion on an outer wall, and is provided with a stopper, the stopper has a resilient arm and a hook portion provided on the resilient arm, The hook portion has a stop side, The stop side portion abuts against the stop surface, the outer cylinder, wherein the hook portion is engaged with one of the plurality of gear grooves; a spring that is attached to the outer cylinder so as to cover it, and that is sandwiched and preloaded between the first contact portion and the second contact portion; A drive device including a housing in which an inner cylinder is installed, the inner cylinder includes the drive unit, the drive unit being inserted into the outer cylinder; When the adjustment rod is extended from the outer tube, the hook portion moves to another one of the plurality of gear grooves by the inclined surface of one of the plurality of gear grooves with which it engages, and further, the stop side portion abuts against the stop surface of one of the plurality of gear grooves with which the hook portion engages, and one end of the inner tube abuts against the opposite side portion of the stop side of the hook portion.

13. The adjustment rod has an engagement slot extending circumferentially around the adjustment rod; The outer cylinder is provided with an engaging protrusion, The window lifting device according to claim 12, characterized in that the engagement protrusion can be engaged with the engagement slot, and by engaging the engagement protrusion with the engagement slot, the adjustment rod and the outer cylinder are fixed in the longitudinal direction of the outer cylinder.

14. The engagement slot has an opening; The window lifting device according to claim 13, wherein when the engaging protrusion is disengaged from the engaging slot by the opening, the adjusting rod and the outer cylinder are movable relative to each other.

15. 15. The window lifting device of claim 14, wherein the opening is located at one end of the engagement slot.

16. The window lifting device according to claim 14, wherein the opening is arranged so that the opening direction of the opening is along the longitudinal direction of the adjustment rod.

17. The window lifting device according to claim 14, wherein the opening is arranged so that the opening direction is along the circumferential direction of the adjustment rod.

18. 13. The window lifting device according to claim 12, wherein the inner cylinder is attached to cover the adjustment rod.

19. The ratchet strip is recessed into the outer wall of the adjustment rod, An outer wall of the adjustment rod is provided with a mounting surface; 13. The window lifting device of claim 12, wherein the mounting surface extends parallel to the length of the ratchet strip and extends beyond both ends of the ratchet strip.

20. The adjustment rod is provided with a plurality of ratchet strips and a plurality of mounting surfaces; The window lifting device according to claim 19, characterized in that the plurality of ratchet strips are arranged in a ring shape along the circumferential direction of the adjustment rod, and one of the mounting surfaces is disposed between one of the ratchet strips and another adjacent ratchet strip.

21. 13. The window lifting device according to claim 12, wherein the stopper is integrally formed with the outer cylinder.

22. A protrusion is formed on one end of the adjustment rod, The window lifting device according to claim 12, wherein the first contact portion is provided on the protrusion.

23. 13. The window lifting device according to claim 12, wherein the inner cylinder is integrally formed with the housing.

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