Tensioning mechanism for stay wire in automobile

Abstract

The invention provides an automobile internal stay wire tensioning mechanism which enables a driven stay wire to be reliably locked and attached when a driving stay wire is in a tightened state, further ensures that the driven stay wire cannot be separated from a wire groove of a winding wheel, and ensures that a stay wire mechanism works stably and reliably for a long time. The device comprises a driving motor; the reel mounting shell comprises a base and an upper cover, a reel mounting space and a stay wire transition space are arranged in the reel mounting shell, and the reel mounting shell is further provided with two groups of stay wire output ports; a reel; a first stay wire; a second stay wire; and the stay wire tensioner comprises a rotating shaft and two convex pressing ends.

Description

Technical Field

[0001] This invention relates to the technical field of automotive cable tensioning mechanisms, specifically an internal automotive cable tensioning mechanism. Background Technology

[0002] In automobile design and manufacturing, due to the positional distance between the drive unit and the mechanism that needs to be opened or closed, a cable mechanism is required for power transmission. When the cable mechanism needs to perform bidirectional transmission, two sets of cables are respectively mounted on the winding wheel for bidirectional drive. In actual operation, especially in electric drive operation, when the travel in one direction reaches the end, the cable in the active state is tightened due to elasticity. At this time, the cable in the driven state will have a slack section due to the reserved size. The slack section is easy to fall out of the groove of the winding wheel. Therefore, it is urgent to develop a corresponding locking mechanism that can actively lock the driven cable when the active cable is in the elastic tension stage, so as to ensure that the cable in the driven state will not fall out of the groove of the winding wheel when the moving structure is at the end position. Summary of the Invention

[0003] To address the aforementioned problems, this invention provides an internal cable tensioning mechanism for automobiles, which reliably locks the driven cable in place when the active cable is taut, thereby ensuring that the driven cable will not detach from the groove of the winding wheel and ensuring long-term stable and reliable operation of the cable tensioning mechanism.

[0004] A cable tensioning mechanism for an automotive interior, characterized in that it comprises: Drive motor; The winding wheel mounting housing includes a base and a top cover. The winding wheel mounting housing is provided with a winding wheel mounting space and a wire pulling transition space. The winding wheel mounting housing is also provided with two sets of wire pulling outlets. Winding reel; First pull line; Second pull line; And a cable tensioner, which includes a rotating shaft and two outwardly protruding pressing ends; The output end of the drive motor is connected to the power output end of the winding wheel. The winding wheel is placed in the inner cavity of the winding wheel mounting housing. The inner cavity of the winding wheel mounting housing is also provided with the wire tensioner. The winding wheel is wound with the corresponding starting ends of the first wire and the second wire. The first wire and the second wire are independently led out from the wire output ports located on both sides and connected to the corresponding moving structure. The first wire and the second wire are arranged on both sides of the wire transition space and have a gap with the side wall of the base when not tensioned. The two outward protruding pressing ends of the wire tensioner are respectively attached to the inner side of the first wire and the second wire. When one of the wires is in a taut state, the outward protruding pressing end away from the taut wire presses the other wire into a taut state.

[0005] Its further features are: The two protruding pressing ends of the pull cable tensioner form a bend mechanism. The center intersection point of the bend mechanism protrudes downward to form a rotating shaft. The rotating shaft is pivotally connected to the middle of the width direction of the base. The two protruding pressing ends are symmetrically arranged with respect to the rotating shaft, and the opening of the bend mechanism is arranged facing the corresponding position of the pull cable output port to ensure the normal operation of the pull cable. The two convex pressing ends include a smooth transition surface and a pressing protrusion. The smooth transition surface is used for normal passage of the pull wire. After one pull wire is tightened, the pressing protrusion presses the other pull wire into a tensioned state after the shaft rotates, which ensures stable and reliable pressing. The pressing position of the pressing protrusion is a rounded corner to ensure that the pull wire will not be damaged; The drive motor is a bidirectional rotating motor. When the first pull wire is the active pull wire and the second pull wire is the driven pull wire, when the second pull wire is the active pull wire and the first pull wire is the driven pull wire, when the active pull wire is in a taut state, the driven pull wire located in the pull wire transition space is pressed to a taut state. The moving structure is a slider, which is embedded in a guide rail. A pulley is provided at the end of the guide rail away from the drive motor. The end of the first pull wire is fixed to one end of the slider, and the end of the second pull wire is fixed to the other end of the slider after the pulley is reversed. The two ends of the slider are respectively fixedly connected to the ends of the first pull wire and the second pull wire by a bundle, ensuring that the assembly of the pull wire and the slider is stable and reliable.

[0006] After adopting the above technical solution, the ends of the first and second pull wires are fixed to the corresponding positions of the moving structure. The drive motor drives the winding wheel to rotate, so that one pull wire is unloaded and the other pull wire is wound up. The unloading pull wire is the active pull wire, and the winding pull wire is the driven pull wire. When the moving structure reaches the end, the active pull wire is in a tensioned state due to the elasticity. The pull wire is straightened and presses against the outer protruding pressing end of the pull wire tensioner that was originally in a free state. Then, the other outer protruding pressing end rotates outward under the force transmission of the rotating shaft. This causes the part of the pull wire that is still in a wound state due to inertia to be pressed against the side protrusion. The other pull wire receives outward tension, so that the other pull wire is tensioned. This ensures that when the active pull wire is in a tensioned state, it can reliably lock the driven pull wire, thereby ensuring that the driven pull wire will not detach from the wire groove of the winding wheel and ensuring that the pull wire mechanism works stably and reliably for a long time. Attached Figure Description

[0007] Figure 1 This is a perspective view of a specific embodiment of the present invention; Figure 2 A top view of the winding wheel mounting housing of the present invention after the top cover has been removed (the moving structure is in motion). Figure 3 A top view of the winding wheel mounting housing of the present invention after the top cover has been removed (the movable structure has been moved to the end). Figure 4 This is a schematic diagram showing the connection between the two sets of pull wires and sliders in a specific embodiment of the present invention; Figure 5 This is a partial schematic diagram of the assembly of the pulley, cable, and guide rail in a specific embodiment of the present invention; Figure 6 This is a partial schematic diagram of the assembly of two sets of pull wires and winding wheels in a specific embodiment of the present invention; The names corresponding to the serial numbers in the diagram are as follows: Bundle 1; Drive motor 10, winding wheel mounting housing 20, winding wheel mounting space 201, wire pulling transition space 202, base 21, top cover 22, first wire pulling outlet 23, second wire pulling outlet 24, winding wheel 30, first wire pulling 40, second wire pulling 50, wire tensioner 60, rotating shaft 61, outwardly protruding pressing end 62, smooth transition surface 621, pressing protrusion 622, angle bending mechanism 63, slider 70, guide rail 80, pulley 90. Detailed Implementation

[0008] A type of car internal cable tensioning mechanism, see Figures 1-6 It includes a drive motor 10, a winding wheel mounting housing 20, a winding wheel 30, a first pull wire 40, a second pull wire 50, and a pull wire tensioner 60; The winding wheel mounting housing 20 includes a base 21 and a top cover 22. The winding wheel mounting housing 20 is provided with a winding wheel mounting space 201 and a wire pulling transition space 202. The winding wheel mounting housing 20 is also provided with two sets of wire pulling outlets, namely a first wire pulling outlet 23 and a second wire pulling outlet 24. The first wire pulling outlet 23 and the second wire pulling outlet 24 are respectively located on both sides of the front end of the base 21. The cable tensioner 60 includes a rotating shaft 61 and two outwardly protruding pressing ends 62; The output end of the drive motor 10 is connected to the power output end of the winding wheel 30. The winding wheel 30 is placed in the inner cavity of the winding wheel mounting housing 20. The inner cavity of the winding wheel mounting housing 20 is also provided with a wire tensioner 60. The corresponding starting parts of the first wire 40 and the second wire 50 are respectively wound on the two sets of winding wheel grooves of the winding wheel 30. The starting ends of the first wire 40 and the second wire 50 are respectively fixed and embedded in the corresponding mounting grooves of the winding wheel 30 after passing through the fixed bundle. The first wire 40 passes through one side wall of the base 21 corresponding to the wire transition space 202 and is output from the first wire output port 23. The second wire 50 passes through the wire transition space 202. The other side wall of the base 21 corresponding to the transition space 202 passes through and outputs from the second pull cable output port 24. The first pull cable 40 and the second pull cable 50 are independently led out from the pull cable output ports located on both sides and connected to the corresponding moving structure. The first pull cable 40 and the second pull cable 50 are arranged on both sides of the pull cable transition space 202 and have a gap with the side wall of the base 21 in the untensioned state. The two protruding pressing ends 62 of the pull cable tensioner 60 are respectively attached to the inner side of the first pull cable 40 and the second pull cable 50. When one of the pull cables is in a tensioned state, the protruding pressing end 62 of the pull cable away from the tensioned state presses the other pull cable into a tensioned state.

[0009] In a specific embodiment: the two protruding pressing ends 62 of the tensioner 60 form a bending mechanism 63, and the center intersection of the bending mechanism 63 forms a rotating shaft 61. The rotating shaft 61 is pivotally connected to the middle of the width direction of the base 21. The two protruding pressing ends 62 are symmetrically arranged with respect to the rotating shaft 61, and the opening of the bending mechanism 63 is arranged facing the corresponding position of the cable output port to ensure the normal operation of the cable.

[0010] In a specific embodiment, the two convex pressing ends 62 include a smooth transition surface 621 and a pressing protrusion 622. The smooth transition surface 621 is used for normal passage of the pull wire. After one pull wire is tightened, the pressing protrusion 622 presses the other pull wire into a tensioned state after the rotating shaft 61 is rotated, which ensures stable and reliable pressing. The pressing position of the pressing protrusion 622 is a rounded corner to ensure that the pull wire will not be damaged.

[0011] In a specific embodiment, the drive motor 10 is a bidirectional rotating motor. When the first pull wire 40 is the active pull wire and the second pull wire 50 is the driven pull wire, when the second pull wire 50 is the active pull wire and the first pull wire 40 is the driven pull wire, when the active pull wire is in a taut state, the pull wire of the driven pull wire located in the pull wire transition space 202 is pressed to a taut state.

[0012] In a specific embodiment, the moving structure is a slider 70, which is embedded in the guide rail 80. A pulley 90 is provided at the end of the guide rail 80 away from the drive motor 10. The end of the first pull wire 40 is fixed to one end of the slider 70, and the end of the second pull wire 50 is fixed to the other end of the slider 70 after being reversed by the pulley 90. The two ends of the slider 70 are respectively fixedly connected to the ends of the first pull wire 40 and the second pull wire 50 by the bundle 1 to ensure that the assembly of the pull wire and the slider 70 is stable and reliable.

[0013] For specific implementation, see Figure 2 Under normal conditions, the protruding pressing end 62 of the tensioner 60 is symmetrically positioned relative to the rotating shaft 61. At this time, the second tensioner 50 is the active tensioner (releasing the wire), and the first tensioner 40 is the driven tensioner (retracting the wire). (See...) Figure 3 When the slider 70 moves to the module, the second pull wire 50 is fully taut. At this time, the first pull wire 40 is still being wound up due to the inertia of the take-up wheel 30. When the excess wire is about to become slack, the pressing protrusion 622 of the corresponding outward pressing end 62 of the pull wire tensioner 60 presses against the first pull wire 40, so that the first pull wire 40 receives outward tension, thereby making the first pull wire 40 taut.

[0014] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0015] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An automotive interior pull wire tensioning mechanism, characterized by, It includes: Drive motor; The winding wheel mounting housing includes a base and a top cover. The winding wheel mounting housing is provided with a winding wheel mounting space and a wire pulling transition space. The winding wheel mounting housing is also provided with two sets of wire pulling outlets. Winding reel; First pull line; Second pull line; And a cable tensioner, which includes a rotating shaft and two outwardly protruding pressing ends; The output end of the drive motor is connected to the power output end of the winding wheel. The winding wheel is placed in the inner cavity of the winding wheel mounting housing. The inner cavity of the winding wheel mounting housing is also provided with the wire tensioner. The winding wheel is wound with the corresponding starting ends of the first wire and the second wire. The first wire and the second wire are independently led out from the wire output ports located on both sides and connected to the corresponding moving structure. The first wire and the second wire are arranged on both sides of the wire transition space and have a gap with the side wall of the base when not tensioned. The two outward protruding pressing ends of the wire tensioner are respectively attached to the inner side of the first wire and the second wire. When one of the wires is in a taut state, the outward protruding pressing end away from the taut wire presses the other wire into a taut state.

2. A tensioning mechanism for a wire run in an automobile interior according to claim 1, characterized in that: The two protruding pressing ends of the pull wire tensioner form a bend mechanism. The center intersection point of the bend mechanism protrudes downward to form a rotating shaft. The rotating shaft is pivotally connected to the middle position of the base in the width direction. The two protruding pressing ends are symmetrically arranged with respect to the rotating shaft, and the opening of the bend mechanism is arranged facing the corresponding position of the pull wire output port.

3. A tensioning mechanism for a wire run in an automobile interior according to claim 2, characterized in that: The two convex pressing ends include a smooth transition surface and a pressing protrusion. The smooth transition surface is used for normal passage of the pull wire. After one pull wire is tightened, the pressing protrusion presses the other pull wire into a taut state after the shaft rotates.

4. A tensioning mechanism for a wire run in an automobile interior according to claim 3, characterized in that: The pressing position of the pressing protrusion is the rounded corner portion.

5. A tensioning mechanism for a wire harness in an automobile interior according to claim 1, characterized by: The drive motor is a bidirectional rotating motor. When the first pull wire is the active pull wire and the second pull wire is the driven pull wire, when the second pull wire is the active pull wire and the first pull wire is the driven pull wire, when the active pull wire is in a taut state, the pull wire located in the pull wire transition space of the driven pull wire is pressed to a taut state.

6. A tensioning mechanism for a wire harness in an automobile interior according to claim 1, characterized by: The moving structure is a slider, which is embedded in a guide rail. A pulley is provided at the end of the guide rail away from the drive motor. The end of the first pull cable is fixed to one end of the slider, and the end of the second pull cable is fixed to the other end of the slider after the pulley is reversed.

7. A tensioning mechanism for a wire run in an automotive interior according to claim 6, characterized in that: The two ends of the slider are respectively fixedly connected to the ends of the first pull wire and the second pull wire by a bundle.

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