Control mechanism capable of tensioning stay wire

Abstract

The utility model belongs to the technical field of automobile seat stay wires, and particularly relates to a control mechanism capable of tensioning a stay wire, which comprises a base, a seat framework is connected onto the base in a sliding manner, a stay wire mechanism is arranged on one side of the seat framework and comprises a driving motor, and the output end of the driving motor is connected with the stay wire. The tail end of the stay wire is fixedly connected to the base, the moving section of the stay wire is connected with a tensioning adjusting mechanism used for tensioning the stay wire in a rolling mode, the position of the seat can be adjusted through the arranged stay wire mechanism, and the stay wire can be always in a straightened state through the arrangement of the tensioning adjusting mechanism and is fixed to the space between the base and the seat framework. Therefore, the moving section of the unlocking stay wire of the seat has a fixing mode capable of changing along with movement in the moving process.

Description

Technical Field

[0001] This utility model belongs to the field of automotive seat cable technology, specifically relating to a control mechanism for tensionable cables. Background Technology

[0002] Currently, the various cables for different types of seats on the market either use a completely fixed method or a completely unfixed method during the movement of the seat in all directions. This means that the moving parts of the cables may be taut and subjected to excessive force during various movements, causing damage, or a large enough space needs to be reserved to prevent the cables from being squeezed by surrounding parts during movement, resulting in wasted space. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a control mechanism for tensionable cables. The cable mechanism allows for adjustment of the seat position, and the tension adjustment mechanism ensures that the cable remains taut and fixed in the space between the base and the seat frame, thereby solving the problems mentioned in the background technology.

[0004] To achieve the above objectives, this utility model is implemented through the following technical solution: a control mechanism for tensionable pull cord, including a base, a seat frame slidably connected to the base, a pull cord mechanism provided on one side of the seat frame, the pull cord mechanism including a drive motor, the output end of the drive motor connected to a pull cord, the end of the pull cord fixedly connected to the base, and a tension adjustment mechanism for tensioning the pull cord slidably connected to the moving section of the pull cord.

[0005] Preferably, the tension adjustment mechanism includes a fixed bracket disposed inside the base, a rotating shaft disposed on the fixed bracket, a swing arm connected to the rotating shaft, a fixed bolt connected to the swing end of the swing arm, a tension wheel connected to the fixed bolt, and a pull cable tumblingly connected to the tension wheel.

[0006] Preferably, a return spring is sleeved on the rotating shaft, one end of the return spring is fixedly connected to the fixed bracket, and the other end of the return spring is fixedly connected to the rotating shaft.

[0007] Preferably, the rotating shaft passes through the swing arm and the fixed bracket and is provided with a retaining ring at its exit end.

[0008] Preferably, the tensioning wheel has a groove on its outer periphery that matches the wall of the pull cable, and the pull cable is tumbling inside the groove.

[0009] Preferably, when the cable is tumbling onto the tension wheel, the return spring drives the swing arm to keep the cable taut at all times.

[0010] Preferably, the top of the base is provided with a transverse slide rail, and the bottom of the seat frame is provided with a sliding guide rail that matches the transverse slide rail.

[0011] Preferably, the transverse slide rail is provided with a toothed limiting groove inside, and the sliding guide rail is provided with a limiting block that matches the toothed limiting groove.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: The seat position can be adjusted by the designed cable mechanism, and the tension adjustment mechanism ensures that the cable is always taut and fixed in the space between the base and the seat frame. This allows the moving section of the seat unlocking cable to have a variable fixing method during movement. This ensures that the cable will not be pulled and broken or damaged during movement due to the completely stationary fixing method of the moving section. It also ensures that the trajectory of the moving section of the cable is controlled to avoid interference with other parts, ultimately meeting the requirements of movement clearance with surrounding parts and durability testing.

[0013] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description or may be learned by practice of the invention. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of a control mechanism for tensioning a tensioned wire.

[0015] Figure 2 This is a three-dimensional structural diagram of a tension adjustment mechanism for a tensionable cable control mechanism.

[0016] Figure 3 This is an enlarged view of section A of the tension adjustment mechanism, which is part of a control mechanism for tensioning a tensionable wire.

[0017] Figure 4 Cross-sectional view of a tension adjustment mechanism of a tensionable wire control mechanism Figure 1 .

[0018] Figure 5 Cross-sectional view of a tension adjustment mechanism of a tensionable wire control mechanism Figure 2 .

[0019] In the diagram: 1. Base; 2. Seat frame; 3. Cable pull mechanism; 31. Drive motor; 32. Cable pull; 4. Tension adjustment mechanism; 41. Fixed bracket; 42. Rotating shaft; 43. Swing arm; 44. Fixing bolt; 45. Tensioning wheel; 451. Groove; 5. Return spring; 6. Fixing ring; 7. Transverse slide rail; 71. Toothed limit groove; 8. Sliding guide rail. Detailed Implementation

[0020] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model. All other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this utility model.

[0021] Combination Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, a tensionable cable control mechanism includes a base 1, which serves as the basic support structure for the entire control mechanism, ensuring stability and load-bearing capacity.

[0022] A seat frame 2 is slidably connected to the base 1. The seat frame 2 and the base 1 are connected by a precisely designed sliding connection mechanism, allowing the seat frame 2 to slide forward and backward or left and right within a certain range to meet the sitting posture needs of different users. A pull cable mechanism 3 is provided on one side of the seat frame 2. The pull cable mechanism 3 is the key to controlling the mechanism to achieve fine adjustment of the seat position.

[0023] The cable-operated mechanism 3 includes a drive motor 31, the output end of which is connected to a cable 32. The end of the cable 32 is fixedly connected to the base 1. The cable-operated mechanism 3 mainly consists of the drive motor 31 and the cable 32. The drive motor 31 pulls or releases the cable 32. The cable 32 ensures long-term reliability and stability. One end of the cable 32 is fixedly connected to the output end of the drive motor 31, and the other end is fixed at a specific position on the base 1, forming a closed-loop system. The movement of the seat frame 2 is achieved by the tension and relaxation of the cable 32.

[0024] To maintain the tension of the tension cable 32 during movement and prevent a decrease in control precision due to slack, the moving section of the tension cable 32 is connected to a tension adjustment mechanism 4 for tensioning the cable 32. The moving section of the tension cable 32 rolls on these rollers to reduce friction and improve movement efficiency. The tension adjustment mechanism 4 is equipped with fine-tuning devices, such as spring-loaded tension adjusters or threaded adjustment rods, allowing users or maintenance personnel to make minor adjustments to the tension of the tension cable 32 according to actual conditions, ensuring optimal system operation.

[0025] This tensionable cable control mechanism, through precise mechanical design and advanced material application, not only enables flexible adjustment of the seat position but also ensures a smooth, accurate, and durable adjustment process, providing users with a more comfortable and personalized riding experience.

[0026] Combination Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, the tension adjustment mechanism 4 includes a fixed bracket 41 disposed inside the base 1, a rotating shaft 42 disposed on the fixed bracket 41, a swing arm 43 connected to the rotating shaft 42, a fixing bolt 44 connected to the swing end of the swing arm 43, a tension wheel 45 connected to the fixing bolt 44, and a pull cable 32 rotatably connected to the tension wheel 45.

[0027] Specifically, the fixed bracket 41 serves as the basic support for the tension adjustment mechanism 4, and is located inside the base 1. The fixed bracket 41 can withstand the dynamic load generated by the tension wheel 45 and the tension cable 32. The rotating shaft 42 is a key component connecting the fixed bracket 41 and the swing arm 43. The rotating shaft 42 can withstand the force and torque generated by the swing arm 43 during its swing. Both ends of the rotating shaft 42 are connected to the fixed bracket 41 through bearings or bushings to ensure that the swing arm 43 maintains smooth and low-friction movement during rotation.

[0028] The swing arm 43 is an intermediate link connecting the rotating shaft 42 and the tension wheel 45. One end of the swing arm 43 is connected to the rotating shaft 42, and the other end is connected to the tension wheel 45 via a fixing bolt 44. The swing arm 43 allows it to swing within a certain range, thereby adjusting the position and angle of the tension wheel 45 to meet different tension requirements.

[0029] The fixing bolt 44 is used to connect the tensioning wheel 45 to the swing end of the swing arm 43. The tensioning wheel 45 is a key component of the rolling connection of the tension cable 32. The tensioning wheel 45 ensures that the tension cable 32 maintains low friction and a long service life during rolling. By adjusting the position and angle of the swing arm 43, the contact point and contact pressure between the tensioning wheel 45 and the tension cable 32 can be changed, thereby achieving effective adjustment of the tension of the tension cable 32.

[0030] Combination Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, a return spring 5 is sleeved on the rotating shaft 42. One end of the return spring 5 is fixedly connected to the fixed bracket 41, and the other end of the return spring 5 is fixedly connected to the rotating shaft 42.

[0031] Specifically, one end of the return spring 5 is fixed to the fixed bracket 41 by a connector (such as a bolt, pin, or clip). The other end is connected to the rotating shaft 42 by a corresponding connection structure to ensure that the return spring 5 can elastically deform along with the rotating shaft 42 when the swing arm 43 swings.

[0032] When the tension of the cable 32 needs to be adjusted, the user can change the position and angle of the tension wheel 45 by operating the swing arm 43. At this time, the return spring 5 will be subjected to tensile or compressive forces, resulting in elastic deformation. Once the adjustment is completed and the swing arm 43 is released, the return spring 5 will use its own elastic restoring force to push the rotating shaft 42 and the swing arm 43 back to the preset initial position.

[0033] The return spring 5 not only improves the automation level of the tension adjustment mechanism 4, but also makes the mechanism more stable and reliable during adjustment. The return spring 5 ensures that the cable 32 maintains a constant tension after adjustment, preventing a decrease in adjustment accuracy due to the positional deviation of the swing arm 43. At the same time, the return spring 5 can also absorb and buffer the impact and vibration generated during adjustment to a certain extent, improving the durability and service life of the control mechanism.

[0034] Combination Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the rotating shaft 42 passes through the swing arm 43 and the fixed bracket 41, and a retaining ring 6 is provided at its exit end.

[0035] Specifically, one end of the rotating shaft 42 first passes through a pre-drilled hole on the fixed bracket 41 and engages with an internal bearing or bushing to achieve smooth and low-friction rotation. Subsequently, the rotating shaft 42 continues to pass through a corresponding hole on the swing arm 43, forming a reliable connection with the swing arm 43. To ensure that the rotating shaft 42 will not detach from the swing arm 43 or the fixed bracket 41 due to vibration or load changes, the designer cleverly installed a retaining ring 6 at the exit end of the rotating shaft 42.

[0036] The retaining ring 6 fits tightly against the surface of the rotating shaft 42 and provides sufficient clamping force through its elastic deformation. After the rotating shaft 42 passes through the rocker arm 43, the retaining ring 6 is installed at the protruding end of the rotating shaft 42 and secured by hammering, pressing, or other special tools. In this way, the retaining ring 6 can effectively prevent the rotating shaft 42 from axially moving or coming off during the operation of the mechanism.

[0037] Combination Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the tensioning wheel 45 has a groove 451 on its outer periphery that matches the peripheral wall of the pull wire 32, and the pull wire 32 is tumbled inside the groove 451.

[0038] Specifically, the cross-sectional shape of the pull wire 32 is circular or flat, so the groove 451 is also designed as a circular groove or a flat groove accordingly. This allows the pull wire 32 to be tightly embedded inside the groove 451 and to form a stable contact with the sidewall of the groove 451 during rolling.

[0039] Since the pull wire 32 will undergo slight deformation when subjected to external force, the groove 451 is designed with a certain elastic range to accommodate the slight deformation of the pull wire 32 during the rolling process, thereby ensuring that the pull wire 32 always remains inside the groove 451 and rolls stably.

[0040] Combination Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, when the pull cable 32 is tumbling connected to the tension wheel 45, the return spring 5 drives the swing arm 43 to keep the pull cable 32 taut at all times.

[0041] Specifically, when the pull cable 32 is rolled onto the tension wheel 45, the return spring 5 plays a crucial role. One end of the return spring 5 is securely connected to the fixed bracket 41, and the other end is connected to the rotating shaft 42. This allows the return spring 5 to automatically provide a restoring force to the rotating shaft 42 after the swing arm 43 has swung and adjusted, thereby driving the swing arm 43 back to the preset initial position.

[0042] During the swing of the swing arm 43, the position and angle of the tension wheel 45 change accordingly, thus affecting the tension of the cable 32. To ensure that the cable 32 remains taut throughout the rolling connection process, the elastic restoring force of the return spring 5 is cleverly utilized. When the swing arm 43 swings to the desired position, the return spring 5 applies a force opposite to the swing direction, allowing the swing arm 43 and the tension wheel 45 to remain stably in that position. Simultaneously, this restoring force is also transmitted to the cable 32 through the tension wheel 45, ensuring that the cable 32 always experiences sufficient tension and remains taut. This not only improves the rolling efficiency and stability of the cable 32 on the tension wheel 45 but also ensures that the cable 32 will not affect its adjustment accuracy due to loosening or deformation during long-term use.

[0043] Combination Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, a horizontal slide rail 7 is provided on the top of the base 1. The horizontal slide rail 7 can withstand the friction and impact generated by the seat frame 2 during the sliding process.

[0044] The bottom of the seat frame 2 is equipped with a sliding guide rail 8 that matches the transverse slide rail 7. The shape and size of the sliding guide rail 8 are designed according to the contour of the transverse slide rail 7 to ensure that they fit together tightly and maintain stable contact during sliding. This not only improves the smoothness and accuracy of the sliding of the seat frame 2 on the base 1, but also ensures that the seat will not wobble or shift during adjustment.

[0045] When the seat position needs to be adjusted, the user simply pushes the seat frame 2 gently, and the sliding guide rail 8 slides smoothly along the transverse slide rail 7. This sliding process is not only easy and effortless, but also allows for precise adjustment according to the user's actual needs. At the same time, due to the tight fit between the transverse slide rail 7 and the sliding guide rail 8, the seat maintains a stable posture during adjustment, without tilting or wobbling.

[0046] Combination Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the transverse slide rail 7 is provided with a toothed limiting groove 71 inside, and the sliding guide rail 8 is provided with a limiting block that matches the toothed limiting groove 71.

[0047] Specifically, the toothed limiting groove 71 inside the transverse slide rail 7 is precision-machined. The shape and size of the toothed limiting groove 71 are precisely designed according to the contour of the upper limiting block of the sliding guide rail 8 to ensure that they can mesh tightly together. This not only improves the smoothness and accuracy of the seat frame 2 sliding on the base 1, but also ensures that the seat can stay stably after being adjusted to the desired position without accidental sliding or displacement.

[0048] The limiting block on the sliding guide rail 8 is a key component that matches the toothed limiting groove 71. The shape and size of the limiting block are perfectly matched to the contour of the toothed limiting groove 71, allowing it to fit snugly into it. When the seat frame 2 slides and adjusts on the base 1, the limiting block moves along the trajectory of the toothed limiting groove 71 until the desired adjustment position is reached. At this point, the limiting block will tightly engage with the corresponding position of the toothed limiting groove 71, ensuring that the seat frame 2 can stably remain in that position.

[0049] The user simply needs to gently push the seat frame 2, and the limiting block on the sliding guide rail 8 will slide smoothly along the toothed limiting groove 71 inside the transverse slide rail 7. When the desired adjustment position is reached, the limiting block will automatically engage in the corresponding position of the toothed limiting groove 71, without the need for additional locking operations.

[0050] This invention represents a preferred embodiment of the present invention, but its scope of protection is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this invention, based on the technical solution and inventive concept of this invention, shall be covered within the scope of protection of this invention.

Claims

1. A control mechanism of a tensionable pull cable, comprising a base (1), a seat frame (2) is slidably connected on the base (1), a pull cable mechanism (3) is arranged on one side of the seat frame (2), characterized in that, The pull wire mechanism (3) comprises a driving motor (31), the output end of the driving motor (31) is connected with a pull wire (32), the tail end of the pull wire (32) is fixedly connected on the base (1), and the movement section of the pull wire (32) is rollingly connected with a tension adjusting mechanism (4) for tensioning the pull wire (32).

2. A control mechanism for a tensionable pull cable according to claim 1 wherein, The tension adjusting mechanism (4) comprises a fixed support (41) arranged on the inner side of the base (1), the fixed support (41) is provided with a rotating shaft (42), the rotating shaft (42) is connected with a swing arm (43), the swing end of the swing arm (43) is connected with a fixed bolt (44), the fixed bolt (44) is connected with a tension pulley (45), and the pull wire (32) is rollingly connected on the tension pulley (45).

3. A control mechanism for a tensionable pull cable according to claim 2, wherein, The rotating shaft (42) is sleeved with a reset spring (5), one end of the reset spring (5) is fixedly connected with the fixed support (41), and the other end of the reset spring (5) is fixedly connected with the rotating shaft (42).

4. A control mechanism for a tensionable pull cable according to claim 3, wherein, The rotating shaft (42) penetrates through the swing arm (43) and the fixed support (41) and is provided with a fixed clasp (6) at the penetrating end.

5. A control mechanism for a tensionable pull cable according to claim 2, wherein, The tension pulley (45) is provided with a groove (451) matched with the peripheral wall of the pull wire (32) on the outer periphery, and the pull wire (32) is rollingly connected in the groove (451).

6. A control mechanism for a tensionable pull wire according to any one of claims 1-5, wherein, When the pull wire (32) is rollingly connected on the tension pulley (45), the reset spring (5) drives the swing arm (43) to make the pull wire (32) always in a straightened state.

7. A control mechanism for a tensionable pull cable according to claim 6 wherein, The top of the base (1) is provided with a transverse sliding rail (7), and the bottom of the seat framework (2) is provided with a sliding guide rail (8) matched with the transverse sliding rail (7).

8. A control mechanism for a tensionable pull cable according to claim 7, wherein, The transverse sliding rail (7) is internally provided with a tooth-shaped limiting groove (71), and the sliding guide rail (8) is provided with a limiting block matched with the tooth-shaped limiting groove (71).

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