Parking locking device with an actuating device with a fork element

Abstract

The invention relates to a parking locking device (10) for a vehicle, comprising a rotating component (26) rotatable relative to a housing about a pivot axis (24), a locking element (52) axially movable between a locking position for positive axial engagement in the rotating component (26) and a release position for decoupling from the rotating component (26) and thereby releasing a rotational movement of the rotating component (26), an actuating device (28) that can switch the locking element (52) between the locking position and the release position, wherein the actuating device (28) comprises a fork element (32) pivotable about a pivot axis (30) by changing a pivot position, which is coupled to the locking element (52) for switching between the release position and the locking position of the locking element (52) depending on the pivot position.

Description

[0001] The invention relates to a parking locking device according to the preamble of claim 1.

[0002] German patent DE 10 2020 127 414 A1 describes a parking locking device comprising a parking lock wheel with an axial receptacle and a locking element with axial engagement. The locking element is axially movable by an actuating element to engage the parking lock wheel and block its rotation.

[0003] The object of the present invention is to design the parking locking device in a more space-saving manner. The parking locking device should be able to be arranged more flexibly.

[0004] At least one of these tasks is solved by a parking locking device with the features according to claim 1. This allows the parking locking device to be designed in a more space-saving manner and arranged more flexibly.

[0005] The parking locking device can be installed in a vehicle. The vehicle can be a motor vehicle, in particular an electric vehicle.

[0006] The parking lock can restrict or prevent movement of the vehicle in a parked position when locked. For example, it can prevent unintentional movement of a vehicle parked on a slope.

[0007] The parking lock device can be connected to a gearbox. The parking lock device can be located in or on the gearbox.

[0008] The housing can be a gearbox housing of the gearbox.

[0009] The rotating component can be a gear of the transmission. The rotating component can have external teeth, particularly for torque transmission, preferably a drive torque for propelling the vehicle. The rotating component can mesh with another gear of the transmission for torque transmission, preferably a drive torque for propelling the vehicle.

[0010] In the locked position, the locking element can engage axially in a positive-locking manner with the rotating component. The rotating component can have at least one axially open recess into which at least one axial projection on the locking element engages in a positive-locking manner. Alternatively, the locking element can have an axially open recess into which at least one axial projection on the rotating component engages in a positive-locking manner.

[0011] The locking element can be mounted on the rotating component so that it is axially displaceable. The rotating component can have a centering projection aligned in the axial direction, on which the locking element is mounted so that it is axially movable.

[0012] The pivot axis can be perpendicular to the rotation axis.

[0013] In a preferred embodiment of the invention, it is advantageous if the locking element is positively connected to the fork element via at least one pivot pin. The pivot pin can be arranged on the locking element and engage positively in a recess in the fork element. The pivot pin can be integrally formed with the locking element. The pivot pin can be attached to the locking element as a separate component. The pivot pin can be arranged on the fork element and engage positively in a recess in the locking element. The pivot pin can be integrally formed with the fork element. The pivot pin can be attached to the fork element as a separate component.

[0014] In a particular embodiment of the invention, it is advantageous if the locking element is rotatable relative to the fork element about a pivot axis formed by the longitudinal axis of the pivot bolt. This allows the pivoting movement for changing the pivot position of the fork element to be translated into an axial movement of the locking element.

[0015] A preferred embodiment of the invention is advantageous in which the pivot axis is parallel to the joint axis. The pivot axis can be spaced apart from the joint axis with respect to the axial direction and / or a direction perpendicular to the axial direction.

[0016] In an advantageous embodiment of the invention, the fork element is pivotable relative to the housing by means of at least one pivot pin having the pivot axis as its longitudinal axis. The pivot pin can be arranged on the fork element. The pivot pin can be integrally formed with the fork element. The pivot pin can be attached to the fork element as a separate component. The pivot pin can be rotatably mounted in a receptacle in the housing. The pivot pin can be arranged on the housing. The pivot pin can be integrally formed with the housing. The pivot pin can be attached to the housing as a separate component. The pivot pin can be rotatably mounted in a receptacle in the fork element.

[0017] The pivot bolt can be located on a side of the fork element facing axially away from the rotating component. The fork element can have only one degree of freedom relative to the housing, namely rotation about the pivot axis.

[0018] In a particular embodiment of the invention, it is advantageous if the actuating device has an actuating element that can be moved by changing an actuating position and that is coupled to the fork element to change the pivot position depending on the actuating position. The actuating element can be an actuating rod. The actuating element can be coupled to the fork element via at least one bearing element. The bearing element can translate an actuating movement for changing the actuating position of the actuating element into a pivoting movement for changing the pivot position of the fork element. The bearing element can comprise a conical bearing ring.

[0019] The actuating element can be actuated into an actuating position, which effects the release position via the fork element, by means of a return spring element. The return spring element can be a coil spring. The return spring element can be arranged coaxially to the actuating axis.

[0020] In a preferred embodiment of the invention, the actuating element is movable translationally along an actuating axis to change the actuating position. The bearing element can transmit the translational actuating movement to the fork element for pivoting movement.

[0021] In a preferred embodiment of the invention, the actuating axis is parallel to the axis of rotation. The pivot axis can have a first distance from the actuating axis and a second distance from the axis of rotation and / or the longitudinal axis of the pivot pin. The first distance can be greater than, equal to, or less than the second distance.

[0022] In a preferred embodiment of the invention, the actuating device comprises a deflecting element that can be deflected by changing a deflection position and is coupled to the actuating element for changing the actuating position depending on the deflection position. The deflecting element can be a deflecting fork. The deflecting element can be connected to an actuator element, in particular an electric motor. The electric motor can move the deflecting element to perform the deflection movement to change the deflection position.

[0023] The pivot axis can be located between the locking element and the deflection element.

[0024] A preferred embodiment of the invention is advantageous in which the deflection element is rotatable about a deflection axis perpendicular to the axis of rotation and the pivot axis in order to change the deflection position. The deflection movement about the deflection axis can effect the actuating movement, and this in turn can cause the pivoting movement.

[0025] Further advantages and advantageous embodiments of the invention will become apparent from the description of the figures and the illustrations. Character description

[0026] The invention is described in detail below with reference to the illustrations. These show, in detail: Fig. 1: A spatial view of a gearbox with a parking lock device in a special embodiment of the invention. Fig. 2: A spatial view of the parking barrier device Fig. 1. Fig. 3: A spatial view of a locking element of the parking locking device Fig. 1. Fig. 4: A spatial view of a rotating component of the parking lock device made of Fig. 1. Fig. 5: A section of the turned component from Fig. 4. Fig. 6: A section of a cross-section of the rotating component and the locking element made of Fig. 1. Fig. 7: A cross-section through the actuating element made of Fig. 1.

[0027] Fig. Figure 1 shows a spatial view of a transmission with a parking lock device in a specific embodiment of the invention. The parking lock device 10 is arranged in a transmission 12 of a vehicle. The transmission 12 comprises a gear 14, which engages with a further gear 18 via an external tooth 16. The second gear 18 is arranged parallel to the axis of the gear 14. The gear 14 is connected to a further gear 20, which is arranged coaxially with the gear 14. The second gear 20 is connected to a further gear 22, which is arranged parallel to the axis of the second gear 20.

[0028] The parking locking device 10 comprises a rotating component 26, formed by the gear 14, which is rotatable about an axis of rotation 24 relative to a housing (not shown here), in particular a gearbox housing. Furthermore, the parking locking device 10 comprises a locking element, which is axially movable (though concealed here) between a locking position for axial engagement with the rotating component 26 and a release position for decoupling from the rotating component 26 and thereby allowing rotational movement of the rotating component 26.

[0029] The locking element can be switched between the locked position and the released position by an actuating device 28. The actuating device 28 comprises a fork element 32 that can be pivoted about a pivot axis 30 by changing its pivot position and is coupled to the locking element for switching between the released position and the locked position of the locking element depending on the pivot position.

[0030] The fork element 32 is pivotable relative to the housing via a pivot bolt 34 which has the pivot axis 30 as its longitudinal axis. The pivot bolt 34 is rotatably mounted, for example, in a receptacle in the housing.

[0031] The actuating device 28 comprises an actuating element 36, which is movable by changing an actuating position and is designed here as an actuating rod 38. The actuating element 36 is coupled to the fork element 32 to change the pivot position depending on the actuating position. The actuating element 36 is movable translationally along an actuating axis 40 to change the actuating position. The actuating axis 40 is parallel to the axis of rotation 24.

[0032] The actuating element 36 can be actuated by a return spring element 42 into an actuating position that effects the release position via the fork element 32. The return spring element 42 can be a coil spring, as shown here. The return spring element 42 is preferably arranged coaxially with the actuating axis 40.

[0033] Furthermore, the actuating device 28 comprises a deflection element 44 which can be deflected by changing a deflection position and which is coupled to the actuating element 36 for changing the actuating position depending on the deflection position. The deflection element 44 is rotatable about a deflection axis 46 perpendicular to the axis of rotation 24 and the pivot axis 30 in order to change the deflection position.

[0034] The deflection element 44 is, for example, a deflection fork 48, which is connected to an actuator element 50, in particular an electric motor. The actuator element 50 can move the deflection element 44 to perform the deflection movement and change the deflection position.

[0035] Fig. Figure 2 shows a spatial view of the parking locking device. Fig. 1. The locking element 52 is positively connected to the fork element 32 via a first pivot pin 54 and a second pivot pin located opposite it on the circumference, which is concealed here. The first pivot pin 54 and the second pivot pin are connected to the locking element 52 as separate components. The locking element 52 is rotatable relative to the fork element 32 about a pivot axis 58 formed by the longitudinal axes of the first pivot pin 54 and the second pivot pin. This allows the pivoting movement for changing the pivot position of the fork element 32 to be translated into an axial movement of the locking element 52. The pivot axis 58 and the pivot axis 30 are parallel to each other.

[0036] The actuating element 36 is coupled to the fork element 32 to change the pivot position depending on the actuating position. The actuating element 36 is movable translationally along the actuating axis 40 to change the actuating position. The actuating axis 40 is parallel to the rotary axis 24.

[0037] The actuating element 36 can be actuated by the return spring element 42 into an actuating position that effects the release position via the fork element 32. The return spring element 42 is arranged coaxially to the actuating axis 40 and supported on a flange 62 connected to the fork element 32 by a pivot joint 60.

[0038] The deflection element 44 is coupled to the actuating element 36 for changing the actuating position depending on the deflection position. The deflection element 44 is rotatable about the deflection axis 46 to change the deflection position. The deflection element 44 can be connected to the actuator element by means of a toothed connection 64.

[0039] Fig. Figure 3 shows a spatial view of a locking element of the parking locking device. Fig. 1. The locking element 52 comprises several axial projections 66 which engage axially in corresponding recesses in the rotating element in a form-fitting manner when in the locked position. The first and second pivot pins 54, 56 are arranged opposite each other on the outer circumference of the locking element 52.

[0040] Fig. Figure 4 shows a spatial view of a rotating component of the parking locking device. Fig. 1. The turned component 26 comprises the external toothing 16 for meshing with the other gear and, radially within it and on an axial side surface 68, several recesses 70 corresponding to the axial projections of the locking element, into which the axial projections of the locking element engage axially in a positive-locking manner when in the locked position. Radially within the recesses 70, the turned component 26 has a centering projection 72 for receiving the locking element. The locking element is axially movable on the centering projection 72 relative to the turned component 26 for switching between the locked and unlocked positions.

[0041] Fig. Figure 5 shows a section of the turned component made of Fig. 4. The recesses 70 in the side surface 68 of the rotating component 26 are chamfered to facilitate releasing the locking position.

[0042] Fig. Figure 6 shows a section of a cross-section of the rotating component and the locking element. Fig. 1. The locking element 52 has the first pivot pin 54 on its outer circumference and is axially displaceable on the centering projection 72 of the rotating component 26. In the locked position, the axial projections 66 of the locking element 52 engage axially in the recesses 70 in the side surface 68 of the rotating component 26 in a form-fitting manner.

[0043] Fig. Figure 7 shows a cross-section through the actuating element made of Fig. 1. The actuating element 36 is coupled to the fork element 32 via a bearing element 74. The bearing element 74 comprises two conical bearing rings 76 opposite each other with respect to the actuating axis 40, which are arranged between the flange 62 and the actuating element 36, and the flange 62, which is connected to the fork element 32 via the pivot joint 60.

[0044] The bearing element 74 can translate an actuating movement to change the actuating position of the actuating element 36 into a pivoting movement to change the pivoting position of the fork element 32.

[0045] The return spring element 42 rests on one side against a support disc 78 which is rigidly connected to the actuating element 36 and on the other side against the flange 62 and causes a return force 80 on the actuating element 36 in the direction of the release position. Reference symbol list 10 Parking Lock Device 12 gearboxes 14 gear 16 External teeth 18 more gear 20 more gear 22 other gear 24 Rotary axis 26 Rotating component 28 Actuating device 30 Swivel axis 32 Fork element 34 pivot bolts 36 Actuating element 38 Actuating rod 40 Actuating axis 42 Return spring element 44 Deflection element 46 Deflection axis 48 Deflection fork 50 actuator element 52 Locking element 54 first pivot bolt 56 second pivot bolt 58 Joint axle 60 Swivel joint 62 flange 64 gear teeth 66 Axial projection 68 side surface 70 recess 72 Centering lead 74 Bearing element 76 Bearing ring 78 Support disc 80 restoring force QUOTES INCLUDED IN THE DESCRIPTION

[0000] This list of documents cited by the applicant was automatically generated and is included solely for the reader's convenience. The list is not part of the German patent or utility model application. The DPMA accepts no liability for any errors or omissions. Cited patent literature

[0000] DE 10 2020 127 414 A1

[0002]

Claims

[1] Parking locking device (10) for a vehicle, comprising a rotating component (26) rotatable relative to a housing about a pivot axis (24), a locking element (52) axially movable between a locking position for positive axial engagement in the rotating component (26) and a release position for decoupling from the rotating component (26) and thereby releasing a rotational movement of the rotating component (26), an actuating device (28) that can switch the locking element (52) between the locking position and the release position, characterized by , that the actuating device (28) comprises a fork element (32) which can be pivoted about a pivot axis (30) by changing a pivot position and which is coupled to the locking element (52) for switching between the release position and the locking position of the locking element (52) depending on the pivot position. [2] Parking locking device (10) according to claim 1, characterized by, that the locking element (52) is positively connected to the fork element (32) via at least one hinge pin (54, 56). [3] Parking locking device (10) according to claim 2, characterized by , that the locking element (52) is rotatable relative to the fork element (32) about a joint axis (58) formed by the longitudinal axis of the pivot bolt (54, 56). [4] Parking locking device (10) according to claim 3, characterized by , that the pivot axis (30) is parallel to the joint axis (58). [5] Parking locking device (10) according to any one of the preceding claims, characterized by , that the fork element (32) is pivotable relative to the housing via at least one pivot bolt (34) having the pivot axis (30) as its longitudinal axis. [6] Parking locking device (10) according to any of the preceding claims, characterized by, that the actuating device (28) has an actuating element (36) that can be moved by changing an actuating position and is coupled to the fork element (32) to change the pivot position depending on the actuating position. [7] Parking locking device (10) according to claim 6, characterized by , that the actuating element (36) is movable translationally along an actuating axis (40) to change the actuating position. [8] Parking locking device (10) according to claim 7, characterized by , that the actuation axis (40) is parallel to the rotation axis (24). [9] Parking locking device (10) according to one of claims 6 to 8, characterized by , that the actuating device (28) comprises a deflecting element (44) which can be deflected by changing a deflection position and which is coupled to the actuating element (36) to change the actuating position depending on the deflection position. [10] Parking locking device (10) according to claim 9, characterized by , that the deflection element (44) is rotatable to change the deflection position about a deflection axis (46) perpendicular to the axis of rotation (24) and the pivot axis (30).

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