Parking device for vehicle

Abstract

The present disclosure provides a parking device of a vehicle, including: a driving member; a brake lever member connected to the central shaft of the driving member and rotating in response to rotation of the central shaft; a parking lever member that linearly moves in response to rotation of the brake lever member; a wedge member configured to come into contact with the parking lever member and move up and down in response to movement of the parking lever member; and a parking gear member provided above the wedge member, gear-coupled by the rising of the wedge member, and configured to be limited in rotation. According to the present disclosure, since a wedge stopper member of a wedge member has a structure in linear contact with a parking lever cam member, a parking operation of a vehicle may be performed without deforming another member.

Description

Technical Field

[0001] Exemplary embodiments of the present disclosure relate to a parking apparatus for a vehicle, and more particularly, to a parking apparatus for a vehicle that can prevent a parking rod component of the vehicle from being damaged. Background Art

[0002] A parking device of a vehicle is constructed in such a manner that, when a driving member operates, rotation of the parking device is transmitted to a manual shaft, and a lever assembly assembled with the manual shaft lifts a sprag.

[0003] When the parking gear of a vehicle is released while the vehicle is in the parking gear holding state on a sloped road, the parking gear rotates under the action of a strong rotational force generated by the parking gear torque due to the slope or the weight of the vehicle. If the parking gear is provided on one of its shafts, the parking gear rotates at a faster angular velocity.

[0004] At this point, the sprag attempts to enter between the teeth of the Park (P) gear due to the restoring force generated by the lever spring before the lever assembly reaches a position deviating from the Park (P) gear, causing engagement (ratcheting) between the Park (P) gear and the sprag. Since the sprag damages the Park (P) lever, the Park (P) gear's parking function may be lost. Therefore, it is necessary to improve this engagement.

[0005] The background technology of the present disclosure is disclosed in Korean Patent Application Publication No. 10-2018-0106184 (published on October 1, 2018, entitled “PARKING APPARATUS OF VEHICLE”). Summary of the Invention

[0006] Various embodiments are directed to providing a parking device for a vehicle that can prevent a parking rod component of the vehicle from being damaged.

[0007] In an embodiment, a parking device for a vehicle may include: a driving component; a brake lever component connected to a central axis of the driving component and rotating in response to rotation of the central axis; a parking lever component moving linearly in response to rotation of the brake lever component; a wedge component configured to contact the parking lever component and move up and down in response to movement of the parking lever component; and a parking gear component disposed above the wedge component, gear-engaged by rising of the wedge component, and configured to be rotationally restricted.

[0008] The parking rod component may include: a parking rod transmission component, which is gear-coupled with the brake rod component and moves forward and backward in response to the rotation of the brake rod component; a parking rod main body component, which is installed on the parking rod transmission component and is formed along the length direction of the wedge block component; and a parking rod cam component, which is installed at one end of the parking rod main body component and is configured to contact the wedge block component and move the wedge block component up and down.

[0009] The parking lever cam component may include: a parking lever cam main body component installed on one end of the parking lever main body component and formed in a tapered shape so that the outer diameter size of the parking lever cam main body component decreases from the parking lever main body component toward the outer side of the parking lever cam main body component; and a parking cam tube component installed on the parking lever cam main body component and formed in the form of a cylinder having a diameter smaller than the outer diameter of the parking lever cam main body component.

[0010] The parking lever cam member further includes a cam inclined member formed between the parking lever cam body member and the parking cam tube member and formed in a tapered shape such that an outer diameter dimension of the cam inclined member decreases from the parking lever cam body member toward the parking cam tube member.

[0011] The cam inclined member is formed to have an inclination angle greater than an inclination angle of the parking lever cam main body member.

[0012] The wedge component may include: a supporting body component; a wedge body component rotatably mounted on the supporting body component; a wedge contact component formed on one side of the wedge body component and configured to contact the parking rod component; a wedge protruding component formed on the other side of the wedge body component and inserted into the parking gear component when the wedge body component rises; and a wedge stopping component configured to protrude from the wedge body component and contact the parking rod cam body component.

[0013] The height of the wedge stopper member protruding from the wedge body member is set so that when the wedge stopper member comes into contact with the parking lever cam body member, the wedge contact member and the parking cam tube member are configured to be spaced apart from each other.

[0014] The wedge stopping part may be formed to be inclined downward from the support body part toward the wedge contact part along the tapered shape of the parking lever cam body part.

[0015] According to the parking device of the vehicle of the embodiment of the present disclosure, although the wedge block component and the parking gear component are engaged when the parking (P) gear is released, since the wedge block component is not in direct contact with the parking rod main body component of the parking rod component, the wedge block component is geometrically strong, and since the wedge block component does not impact the parking rod cam component of the parking rod component, the wedge block component can work normally without affecting the behavior of the parking rod cam component of the parking rod component.

[0016] Furthermore, according to the embodiment of the present disclosure, since the wedge stopper member of the wedge member has a structure that makes line contact with the parking lever cam member, a parking operation of the vehicle can be performed without deforming the other member. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a perspective view schematically illustrating a parking apparatus for a vehicle according to an embodiment of the present disclosure.

[0018] Figure 2 is a perspective view schematically illustrating main components of a parking apparatus for a vehicle according to an embodiment of the present disclosure.

[0019] Figure 3 is a front view schematically showing a parking apparatus for a vehicle according to an embodiment of the present disclosure.

[0020] Figure 4 is a front view schematically showing main components of a parking apparatus for a vehicle according to an embodiment of the present disclosure.

[0021] Figure 5 1 is a front view schematically showing a wedge member and a parking rod cam member of a parking rod member in a parking device for a vehicle according to an embodiment of the present disclosure.

[0022] Figure 6 1 is a front view schematically illustrating operations of a wedge member and a parking rod cam member of a parking rod member in the parking apparatus for a vehicle according to the embodiment of the present disclosure.

[0023] Figure 7 1 is a front view schematically illustrating a state in which the vehicle is in a parking (P) gear state in the parking apparatus for a vehicle according to an embodiment of the present disclosure.

[0024] Figure 8 1 is a front view schematically showing a parking device for a vehicle according to an embodiment of the present disclosure, in which the vehicle is in a parking (P) gear released state.

[0025] Figure 9 1 is a front view schematically illustrating a state in which the vehicle is in a park (P) range released state in a parking device for a vehicle according to an embodiment of the present disclosure. DETAILED DESCRIPTION

[0026] Hereinafter, a parking device for a vehicle according to an embodiment of the present disclosure will be described with reference to the accompanying drawings. In the process, for the sake of clarity and convenience of description, the line width or component size shown in the drawings may be exaggerated.

[0027] In addition, the terms to be described below are defined in consideration of their functions in the present disclosure and may vary according to the intention or practice of the user or operator. Therefore, these terms should be defined based on the overall content of this specification.

[0028] Figure 1 is a perspective view schematically illustrating a parking apparatus for a vehicle according to an embodiment of the present disclosure. Figure 2 is a perspective view schematically illustrating main components of a parking apparatus for a vehicle according to an embodiment of the present disclosure. Figure 3 is a front view schematically showing a parking apparatus for a vehicle according to an embodiment of the present disclosure. Figure 4 is a front view schematically showing main components of a parking apparatus for a vehicle according to an embodiment of the present disclosure. Figure 5 1 is a front view schematically showing a wedge member and a parking rod cam member of a parking rod member in a parking device for a vehicle according to an embodiment of the present disclosure. Figure 6 1 is a front view schematically illustrating operations of a wedge member and a parking rod cam member of a parking rod member in the parking apparatus for a vehicle according to the embodiment of the present disclosure. Figure 7 1 is a front view schematically illustrating a state in which the vehicle is in a parking (P) gear state in the parking apparatus for a vehicle according to an embodiment of the present disclosure. Figure 8 1 is a front view schematically showing a parking device for a vehicle according to an embodiment of the present disclosure, in which the vehicle is in a parking (P) gear released state. Figure 9 1 is a front view schematically illustrating a state in which the vehicle is in a park (P) range released state in a parking device for a vehicle according to an embodiment of the present disclosure.

[0029] Reference Figures 1 to 9 The parking device of a vehicle according to an embodiment of the present disclosure may include a driving part 100 , a brake lever part 200 , a parking lever part 300 , a wedge part 400 , and a parking gear part 500 .

[0030] The driving part 100 may be operated by a knob (not shown) mounted on a driver's seat. The driving part 100 may include an actuator and a motor having a central shaft 110. The central shaft 110 of the driving part 100 may be connected to the brake lever part 200.

[0031] The brake lever part 200 may be connected to the central shaft 110 of the driving part 100 and may rotate in response to rotation of the central shaft 110 .

[0032] The brake lever member 200 can be engaged with the parking lever transmission member 310 of the parking lever member 300. The rotation of the brake lever member 200 can be limited to a certain extent or more by a spring. The spring can return the brake lever member 200 to its original position. One side of the spring can be fixed to the housing, and the other side can be connected to the brake lever member 200.

[0033] The parking lever member 300 may move linearly in response to the rotation of the brake lever member 200. The parking lever member 300 may be coupled to a gear of the brake lever member 200 and may move linearly forward and backward in response to the rotation of the brake lever member 200.

[0034] The parking lever member 300 may include a parking lever transmission member 310, a parking lever main body member 320, and a parking lever cam member 330. The parking lever transmission member 310 may be gear-coupled with the brake lever member 200 and may move forward and backward in response to the rotation of the brake lever member 200 (based on the rotation of the brake lever member 200). Figure 1 and Figure 3 ).

[0035] The parking rod transmission member 310 includes a rack gear, so that the parking rod transmission member 310 including the rack gear can move linearly forward and backward relative to the rotating brake rod member 200 .

[0036] The parking rod body part 320 may be mounted on the parking rod transmission part 310 and may be formed of a body having an elongated shape in the length direction of the wedge part 400. The parking rod body part 320 may be formed in the shape of bend the cable to avoid interference with surrounding components.

[0037] The parking lever cam component 330 can be mounted on one end of the parking lever main body component 320 (based on Figure 4 The parking lever cam member 330 is formed so as to have different outer diameters on the surface of the parking lever cam member 330 that contacts the wedge member 400. As the parking lever body member 320 moves forward and backward, the parking lever cam member 330 can be formed so as to have different outer diameters on the surface of the parking lever cam member 330 that contacts the wedge member 400. Therefore, as the wedge member 400 contacts the parking lever cam member 330, the wedge member 400 can be moved up and down.

[0038] The parking lever cam component 330 may include a parking lever cam body component 331 and a parking cam tube component 333. The parking lever cam body component 331 may be mounted at the end of the parking lever body component 320 (based on the Figure 4 The right end of the parking rod cam main body part 320 may be formed into a tapered shape so that the outer diameter size of the parking rod cam main body part 331 decreases outward from the parking rod main body part 320.

[0039] The parking lever cam body part 331 can be extended outward from the end of the parking lever body part 320 (based on the Figure 4 The outer diameter of the parking lever cam main body component 331 can be reduced by tapering from the parking lever main body component 320 toward the parking cam tube component 333. Therefore, the parking lever cam main body component 331 can be formed to be inclined downward from the parking lever main body component 320 toward the parking cam tube component 333.

[0040] The parking rod cam body part 331 can be tapered so that its outer diameter gradually decreases and can be in line contact with the wedge block stop part 450 of the wedge block part 400, thereby protecting the parking rod part 300 despite engagement between the parking rod cam body part 331 and the wedge block stop part 450.

[0041] The parking cam tube member 333 may be mounted on the parking lever cam body member 331 and may be formed in the form of a cylinder having a diameter smaller than an outer diameter of the parking lever cam body member 331. The parking cam tube member 333 may contact the wedge contact member 430 of the wedge member 400.

[0042] The parking lever cam component 330 may further include a cam tilting component 335. The cam tilting component 335 may be formed between the parking lever cam body component 331 and the parking lever cam tube component 333 and may be formed in a tapered shape such that the outer diameter of the cam tilting component 335 decreases from the parking lever cam body component 331 toward the parking lever cam tube component 333.

[0043] The wedge stopper 450 can contact the surface of the cam inclined member 335. The cam inclined member 335 is formed in a tapered shape so that the outer diameter of the cam inclined member 335 decreases from the parking lever cam main body member 331 toward the parking cam tube member 333. Therefore, when the wedge contact member 430 moves along the surface of the cam inclined member 335, the contact area and contact time of the wedge stopper 450 increase, thereby reducing the impact on the wedge stopper 450.

[0044] The inclination angle θ1 of the cam inclined member 335 can be formed to be greater than the inclination angle θ2 of the parking lever cam main body member 331. Since the inclination angle θ1 of the cam inclined member 335 is formed to be greater than the inclination angle θ2 of the parking lever cam main body member 331, the wedge contact member 430 moves along the surface of the parking lever cam main body member 331 and moves to the cam inclined member 335, and the contact area and contact time of the wedge stopper member 450 with the parking lever cam main body member 331 can be increased.

[0045] The wedge member 400 may come into contact with the parking rod member 300 and may move up and down in response to movement of the parking rod member 300 .

[0046] The wedge member 400 can contact the parking rod member 300 and can move up and down in response to the movement of the parking rod member 300. The wedge member 400 can rise and contact the parking gear member 500, and can restrict the rotation of the parking gear member 500. That is, when the rotation of the parking gear member 500 is restricted by the wedge member 400, the vehicle can be in the parking (P) gear state.

[0047] When the sprag component 400 is lowered and deviates from the parking gear component 500, the parking gear component 500 can rotate. That is, when the sprag component 400 deviates from the parking gear component 500, the vehicle may not be in the parking (P) gear state.

[0048] The wedge component 400 may include a support body component 410 , a wedge body component 420 , a wedge contact component 430 , a wedge protruding component 440 , and a wedge stopping component 450 .

[0049] The support body part 410 is mounted on the housing and can rotatably support the wedge body part 420 .

[0050] One end of the wedge main body 420 (based on Figure 4 The wedge body part 420 is rotatably mounted on the support body part 410. When the wedge contact part 430 moves up and down along the surface of the wedge contact part 430 that contacts the parking lever cam part 330 of the parking lever part 300, the wedge body part 420 can rotate around the support body part 410.

[0051] The wedge contact part 430 may be formed to be formed from one side of the wedge body part 420 (based on Figure 4 The lower side of the parking lever cam member 300 protrudes and can contact the parking lever member 300. As the wedge contact member 430 passes through the parking lever cam body member 331 and the parking cam tube member 333 of the parking lever cam member 330, the wedge member 400 can move up and down.

[0052] As the wedge contact member 430 moves from the parking cam tube member 333 toward the parking lever cam body member 331 , the wedge member 400 may rise; and as the wedge contact member 430 moves from the parking lever cam body member 331 toward the parking cam tube member 333 , the wedge member 400 may fall.

[0053] As the wedge contact member 430 passes through the parking lever cam body member 331 and the parking cam tube member 333 of the parking lever cam member 330, the wedge body member 420 of the wedge member 400 can move up and down. In other words, as the wedge contact member 430 moves from the parking lever cam tube member 333 to the parking lever cam body member 331, the wedge contact member 430 can rise; and as the wedge contact member 430 moves from the parking lever cam body member 331 to the parking cam tube member 333, the wedge contact member 430 can fall.

[0054] The wedge protrusion part 440 may be formed to extend from the other side of the wedge body part 420 (based on the Figure 4 The wedge protruding part 440 protrudes from the parking gear part 500 and can be inserted into the parking gear part 500 when the wedge main body part 420 is raised. When the wedge main body part 420 is lowered, the wedge protruding part 440 can be deviated from the parking gear part 500. When the wedge protruding part 440 is inserted into the parking gear part 500, the rotation of the parking gear part 500 can be restricted.

[0055] The wedge stop member 450 can be moved from the bottom of the wedge body member 420 (based on the Figure 4 ) protrudes and may contact the parking lever cam body part 331. The wedge stopping part 450 may be formed to be inclined downward from the support body part 410 toward the wedge contact part 430 along the tapered shape of the parking lever cam body part 331.

[0056] The wedge stopper member 450 may make line contact with the parking lever cam body member 331 , and the parking lever member 300 may be protected despite engagement between the wedge stopper member 450 and the parking lever cam body member 331 .

[0057] A height H of the wedge stopping member 450 protruding from the wedge body member 420 may be set such that when the wedge stopping member 450 contacts the parking lever cam body member 331 , the wedge contact member 430 and the parking cam tube member 333 are spaced apart from each other.

[0058] Since the height H at which the wedge brake component 450 protrudes from the wedge main body component 420 is set when the wedge stop component 450 contacts the parking rod cam main body component 331, the wedge contact component 430 and the parking cam tube component 333 are spaced apart from each other, thereby preventing the impact on the wedge contact component 430 and the generation of noise in the wedge contact component 430 when the wedge contact component 430 contacts the parking cam tube component 333.

[0059] A plurality of gears are formed on the outer surface of the parking gear member 500. The parking gear member 500 may be disposed above the wedge member 400. As the wedge protruding member 440 of the wedge member 400 is inserted into and engaged with the gears of the parking gear member 500 as the wedge member 400 rises, the rotation of the parking gear member 500 may be restricted.

[0060] That is, the rotation of the parking gear component 500 can be restricted by the wedge protruding component 440 of the wedge component 400. When the wedge protruding component 440 deviates from the parking gear component 500, the parking gear component 500 can rotate. Since the rotation of the parking gear component 500 is restricted by the wedge protruding component 440 of the wedge component 400, the parking gear component 500 can maintain the parking state of the vehicle (i.e., the park (P) gear state).

[0061] Reference Figures 7 to 9 The operation of the parking apparatus of the vehicle according to the embodiment of the present disclosure is described.

[0062] Figure 7 1 is a front view schematically showing a state where the vehicle is in the parking (P) position in the parking device of the vehicle. Figure 7 The brake lever member 200 can be rotated by the driving member 100. The parking lever main body member 320 can be moved leftward by the gear coupling between the brake lever member 200 and the parking lever transmission member 310 of the parking lever member 300. As the parking lever main body member 320 moves, the position of the wedge contact member 430 of the wedge member 400, where the wedge contact member 430 contacts the parking cam tube member 333, changes.

[0063] That is, as the wedge contact part 430 of the wedge member 400 moves from the parking lever cam body part 331 toward the parking cam tube part 333 , the wedge body part 420 may rotate about the support body part 410 , thereby lowering the wedge member 400 .

[0064] The wedge stopping member 450 may be formed in a tapered shape along the parking lever cam main body member 331. Therefore, the wedge stopping member 450 may move while making line contact with the parking lever cam main body member 331.

[0065] See also Figure 9 , the dropped wedge protruding part 440 of the wedge part 400 may be separated from the parking gear part 500 .

[0066] According to the parking device of the vehicle of the embodiment of the present disclosure, although the wedge block component 400 and the parking gear component 500 are engaged when the parking (P) gear is released, since the wedge block component 400 is not in direct contact with the parking rod main body component 320 of the parking rod component 300, the wedge block component 400 is geometrically strong, and since the wedge block component 400 does not impact the parking rod cam component 330 of the parking rod component 300, the wedge block component 400 can operate normally without affecting the behavior of the parking rod cam component 330 of the parking rod component 300.

[0067] Furthermore, according to the embodiment of the present disclosure, since the wedge stopping member 450 of the wedge member 400 has a structure that makes line contact with the parking lever cam member 330 , a parking operation of the vehicle can be performed without deforming another component.

[0068] The present disclosure has been described above with reference to the embodiments shown in the accompanying drawings, but these embodiments are merely illustrative. It will be understood by those skilled in the art that various modifications and other equivalent embodiments may be made based on these embodiments.

Claims

1. A parking device for a vehicle, comprising: Drive components; a brake lever member connected to the central shaft of the drive member and rotating in response to rotation of the central shaft; a parking lever member that moves linearly in response to rotation of the brake lever member; a wedge member configured to contact the parking rod member and to move up and down in response to movement of the parking rod member; as well as The parking gear member is disposed above the wedge member, is gear-coupled by the rising of the wedge member, and is configured to be rotationally restricted.

2. The vehicle parking device according to claim 1, wherein: The parking rod component comprises: a parking lever transmission member gear-coupled with the brake lever member and moving forward and backward in response to rotation of the brake lever member; a parking rod main body component, mounted on the parking rod transmission component and formed along the length direction of the wedge component; and The parking rod cam component is mounted on one end of the parking rod main body component and is configured to contact the wedge component and move the wedge component up and down.

3. The vehicle parking device according to claim 2, wherein: The parking lever cam component comprises: a parking rod cam body member mounted on one end of the parking rod body member and formed in a tapered shape so that an outer diameter dimension of the parking rod cam body member decreases from the parking rod body member toward an outer side of the parking rod cam body member; and The parking cam tube member is mounted on the parking rod cam main body member and is formed in the form of a cylinder having a diameter smaller than an outer diameter of the parking rod cam main body member.

4. The vehicle parking device according to claim 3, wherein: The parking lever cam member further includes a cam inclined member formed between the parking lever cam body member and the parking cam tube member and formed in a tapered shape such that an outer diameter dimension of the cam inclined member decreases from the parking lever cam body member toward the parking cam tube member.

5. The vehicle parking device according to claim 4, wherein: The inclination angle of the cam inclination member is formed to be greater than the inclination angle of the parking lever cam main body member.

6. The vehicle parking device according to claim 3, wherein: The wedge block component comprises: Supporting the main body components; a wedge body component rotatably mounted on the support body component; a wedge contact member formed on one side of the wedge body member and configured to contact the parking rod member; a wedge protruding member formed on the other side of the wedge main body member and inserted into the parking gear member when the wedge main body member rises; and The wedge stopper member is configured to protrude from the wedge body member and to contact the parking lever cam body member.

7. The vehicle parking device according to claim 6, wherein: The height of the wedge stopper member protruding from the wedge body member is set so that when the wedge stopper member contacts the parking lever cam body member, the wedge contact member and the parking cam tube member are configured to be spaced apart from each other.

8. The vehicle parking device according to claim 6, wherein: The wedge stopper part is formed to be inclined downward from the support body part toward the wedge contact part along the tapered shape of the parking lever cam body part.

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