KR102219164B1 - Tail gate and trunk latch - Google Patents

Abstract

The present invention is a release motor fixed inside the housing; A release power transmission unit interlocking with the driving of the release motor to transmit power; A hold link that converts the power transmitted from the release power transmission unit into linear motion and is transferred left and right; A foul lever that is in contact with a lower end of the hold link and rotates in association with the linear motion of the hold link; A catch lever provided in a housing in contact with a side surface of the foul lever so as to be interlocked and rotatable according to the rotation of the foul lever and having an access groove through which the striker enters and exits; An open stay part that contacts the other lower side of the hold link and maintains a position in which the striker can be separated from the entry groove of the catch lever by the rotation of the foul lever; A lock restoration unit forcibly rotating the open stay unit by the entry of the striker to release the fixed holding state of the hold link, thereby returning the foul lever to switch the catch lever to a locked state; Consists of,
The present invention relates to a tail gate and a latch applied to a trunk, which can be opened regardless of the load applied to the upper side of the tail gate, thereby increasing the driver's convenience and satisfaction with the vehicle.

Description

Latch applied to tail gate and trunk {Tail gate and trunk latch}

The present invention relates to a latch installed in a tail gate and a trunk of a vehicle, and in the case of a tail gate, when a load having a load such that it does not open is applied to the upper side of the tail gate, the tail gate can be smoothly opened. Thus, it relates to a latch installed in a trunk of a vehicle to be installed on a tail gate capable of open operation regardless of a load applied to the upper side of the tail gate.

In general, a tail gate is installed at the rear of a SUV (Sport Utility Vehicle) vehicle to open the interior of the vehicle, and a tail gate latch to restrain a striker fixed to the vehicle body at the lower part of the tail gate. Is provided to manage the locking and opening of the tailgate.

In general, the tail gate latch has a structure in which a catch lever in which a hole through which a striker enters is formed and a pawl for controlling the restraint state of the catch lever are rotatably installed in a state that is energized in one direction by a spring.

The structure of such a tail gate latch is also applied to a typical trunk latch structure.

Domestic Patent Registration No. 10-0767969 (announced on October 18, 2007)

An object of the present invention is to provide a tailgate latch structure that is operated open regardless of a load applied to the tailgate or a latch structure applied to a trunk of a vehicle by changing a latch structure applied to a vehicle.

The present invention for achieving the above object,

A release motor fixed inside the housing;

A release power transmission unit interlocking with the driving of the release motor to transmit power;

A hold link that converts the power transmitted from the release power transmission unit into linear motion and is transferred left and right;

A foul lever that is in contact with a lower end of the hold link and rotates in association with the linear motion of the hold link;

A catch lever provided in a housing in contact with a side surface of the foul lever so as to be interlocked and rotatable according to the rotation of the foul lever and having an access groove through which the striker enters and exits;

An open stay part that contacts the other lower side of the hold link and maintains a position in which the striker can be separated from the entry groove of the catch lever by the rotation of the foul lever;

A lock restoration unit forcibly rotating the open stay unit by the entry of the striker to release the fixed holding state of the hold link, thereby returning the foul lever to switch the catch lever to a locked state; It provides a tail gate or a latch of the trunk comprising a.

According to the present invention, it is possible to open regardless of the load applied to the tailgate or the upper side of the trunk, thereby increasing the driver's convenience and satisfaction with the vehicle.

1 is a view showing the interior of a tail gate or trunk latch showing an example of the present invention
2 is a view showing a coupling relationship between a release motor and a release power transmission unit and a hold link adopted in the present invention
3 is a diagram showing a hold link adopted in the present invention
Figure 4 is a view showing the back side of the hold link of Figure 3
5 is a view showing a foul lever applied to the present invention
6 is a view showing a catch lever adopted in the present invention
7 is a view showing a state in which the catch pin and the catch coil spring are coupled to the catch lever catch pin hole of FIG. 6
Figure 8 is a view showing an open-stay unit and a lock restoration unit combined state adopted in the present invention
FIG. 9 is a schematic diagram showing an example in which a hold link is horizontally transferred to the left by driving a release motor in a locked state, showing a combined state of each component constituting an example of the present invention
10 to 11 show that the hold link is moved to the left in the drawing according to the driving of the release motor according to FIG. 9, and the stop lever of the open stay part located on the curved surface of the transfer control block of the hold link is separated from the curved surface. Figure showing the process of supporting the side end of the hold link
12 is a view showing a state in which the foul lever is rotated counterclockwise while the hold link is transferred to the left by driving of the release motor.
13 is a view showing that the hold link is transferred to the left and supported by the open stay unit as shown in FIGS. 10 to 12 to prevent the restoring force of the foul lever
14 is a view showing a state of the bottom of FIG. 13
15 shows that the catch lever is rotated clockwise by the entry of the striker in a state in which the catch lever is open, and is separated from the stepped portion of the catch lever and the locking release protruding portion of the foul lever, and the foul lever is then released by the restoring force of the coil spring. Diagram showing restoration clockwise
FIG. 16 is a view schematically showing that the pushing lever rotates the stop lever clockwise to return the hold link in the state shown in FIG. 15

Specific structural or functional descriptions of the embodiments according to the concept of the present invention disclosed in the present specification are exemplified only for the purpose of describing the embodiments according to the concept of the present invention, and the embodiments according to the concept of the present invention are Since various changes can be added and may have various forms, all changes, equivalents, or substitutes included in the spirit and scope of the present invention are included, and terms or words used in the specification and claims are conventional or dictionary. The meaning and concept consistent with the technical idea of the present invention are not limited to the meaning, and based on the fact that the inventor can appropriately define the concept of terms in order to describe his own invention in the best way. Should be interpreted as. Accordingly, the embodiments described in the specification of the present invention and the configurations shown in the drawings are only the most preferred embodiments of the present invention, and do not represent all the technical ideas of the present invention, but are substituted at the time of filing of the present invention. It will be understood that various equivalents and variations that may be made are possible or exist.

In addition, unless otherwise defined in the specification of the present invention, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which the present invention belongs. Have. Terms as defined in a commonly used dictionary should be interpreted as having a meaning consistent with the meaning in the context of the related technology, and should not be interpreted as an ideal or excessively formal meaning unless explicitly defined in this specification. Does not.

Hereinafter, a preferred embodiment of the present invention will be described with reference to the accompanying drawings.

The present invention is a release motor 100 fixed inside the housing, a release power transmission unit 200, a hold link 300, a foul lever 400, a catch lever 500, an open stay unit 600, a lock restoration unit It consists of 800.

In the description of the present invention, it is assumed that the structure of the tailgate latch and the latch applied to the trunk are the same, and thus the tailgate latch structure will be described as an example in the following description, and the tailgate latch structure will be described in the use of the name.

The release motor 100 is a means for releasing or restraining the striker 10 by rotating the catch lever 500 to be described later by being driven by an electric signal from the driver to open the tail gate.

The rotation shaft 110 of the release motor 100 is provided.

The rotation shaft 110 is provided with a worm 210 constituting the release power transmission unit 200.

The release power transmission unit 200 is a configuration for transmitting the power of the release motor 100.

As shown in FIG. 2, the release power transmission unit 200 includes a worm wheel 220 that is gearly coupled with a worm 210 of the rotation shaft 110 that is interlocked with the drive of the release motor 100, and the worm wheel ( 220) A pinion 230 that rotates interlocking with the same worm wheel shaft 221 is configured in the front.

The worm wheel 220 is provided with a worm wheel spring 222 for providing a restoring force.

The hold link 300 has a structure as shown in FIGS. 3 to 4 and has a structure that converts the power transmitted from the release power transmission unit 200 into a linear motion to enable left and right transport.

The holding link 300 is provided with a horizontal tooth 311 for tooth coupling with the pinion 230 of the release power transmission unit 200 on one side, and a body portion in which a long hole 312 is formed on the other side ( 310) and a transfer control block 320 is integrally formed at the lower end of the body 310.

A curved surface 321 is formed on the front side of the transfer control block 320, and the left side of the transfer control block 320 can rotate the foul lever 400 in a counterclockwise direction as seen in the drawing of FIG. 9. To be in contact with one end, the other side is configured to contact the open stay part 600 to control that the hold link 300 is restored.

A protrusion 322 is formed on one side of the front curved surface 321 of the transfer control block 320.

The foul lever 400 is in contact with one side of the lower end of the hold link 300, that is, one side of the lower transfer control block 320 of the body portion 310 constituting the hold link 300 as shown in FIG. It is configured to be rotated interlocking according to the linear motion of the hold link 300.

The foul lever 400 is configured to be rotatable by the foul shaft 410, and the coil spring 420 is wound around the outer circumferential surface of the foul shaft 410 to provide a restoring elastic force to the foul lever 400, and A lock release protrusion 440 for releasing the lock state of the catch lever 500 in contact with the catch lever 500 is formed on the side, and an extension connection part 430 extending from the end side of the pawl lever 400. Will constitute.

The extension connection part 430 is installed to be in contact with one end side of the transfer control block 320 formed to extend toward the lower end of the hold link 300 by taking a bent shape.

The catch lever 500 is a catch pin 501 fixed inside the housing 1 through a catch pin hole 510 penetrating through the catch pin hole 510 as shown in FIGS. An entrance groove (a) that contacts the side of the foul lever 400 by the elastic force of the catch coil spring 502 and is installed to be rotated interlocking with the rotation of the foul lever 400, and the striker 10 enters and exits the outer circumferential surface ( 520 is provided, forms a curved contact surface 530 that extends to the outer side of the entrance groove 520 to contact the foul lever 400, and extends from the end of the curved contact surface 530 to a stepped surface 541 The stepped portion 540 having) is formed to be soft, and the sensor shorting groove 550 is formed in the shape of a concave circular arc extending from the end of the stepped portion 540, and opened from the end of the sensor shorting groove 550. Thus, it consists of a convex open sensing connection surface 560.

The open sensing switch 710 connected to the control unit 700 is connected to the open sensing connection surface 560.

The control unit 700 is an open detection switch 710 for detecting an open or locked state of the tail gate by connecting or shorting the outer surface of the catch lever 500 according to the forward and reverse driving control of the release motor 100 Is equipped.

The open sensing switch 710 maintains a state connected to the open sensing connection surface 560 of the catch lever 500 described above, or the open sensing switch 710 is connected to the open sensing connection by rotation of the catch lever 500 When the contact state of the surface 560 is terminated and is located in the concave sensor short groove 550 formed by being soft, the communication state with the open detection switch 710 is terminated.

When the open detection switch 710 is connected to the open detection connection surface 560 of the catch lever 500, the striker 10 enters the catch lever 500 side, and the tail gate is locked. Means

On the contrary, when the open sensing switch 710 is located toward the sensor short groove 550 formed in a concave shape by connecting from the open sensing connection surface 560 according to the rotation of the catch lever 500, the open sensing switch 710 and The connection state between the catch levers 500 is terminated.

As described above, when the connection state between the open detection switch 710 and the catch lever 500 is terminated, it means that the tail gate has been converted to a locked state.

The open stay part 600 is in contact with the other lower side of the hold link 300 as shown in FIG. 8 and the striker 10 is moved to the access groove 520 of the catch lever 500 by the rotation of the foul lever 400. ), it plays a role in maintaining a position that can be separated from.

When the hold link 300 is transferred to the left by the release motor 100 and the foul lever 400 is rotated counterclockwise, the lock release protrusion 440 of the foul lever 400 becomes the stepped portion of the catch lever 500 The state in which the state in contact with the stepped surface 541 of 540 is released is maintained, and the tail gate reaches an open state.

In such a state, as described above, when a material that applies a load such as a load or snow is placed on the upper surface of the tail gate, it is necessary to maintain the open state without being switched back to the locked state.

In the present invention, the open stay part 600 as described above is provided for maintaining the open state of the tail gate, and the elastic force is provided by the first spring 620 around the shaft 610 on one side. For controlling the restoring force of the hold link 300 by forming a rotating link body 630 and contacting one side of the transfer control block 320 provided at the lower end of the hold link 300 toward the end side of the link body 630 The stop lever 640 is vertically protruded, and an interference protrusion 650 protruding toward a lower end of the link body 630 is formed.

The first spring 620 may be implemented by selecting one of a coil spring or a leaf spring.

The lock restoration part 800 forcibly rotates the open stay part 600 by entering the striker 10 toward the entrance groove 520 of the catch lever 500 in the state in which the tail gate is open, and the hold link This is a configuration for releasing the fixed holding state of 300 to return the foul lever 400 to switch the catch lever 500 to a locked state.

As shown in FIG. 8, the lock restoration unit 800 forms a restoration link body 820 that is rotated by the restoration force of the second spring 810 with respect to the axis 610, and the restoration link main body 820 A pushing lever 830 is provided to the end side of, and a pivoting pushing lever 840 is configured within a right angle range from the restoration link body 820.

The above-described open stay part 600 and the lock restoration part 800 are arranged vertically on the shaft 610.

The pushing lever 830 rotates the open stay part 600 by the pushing lever 830 by contacting or leaving the interference protruding part 650 of the open stay part 600 as shown in FIGS. 15 to 16. So that the holding link 300 is maintained in a state transferred by the release power transmission unit 200 in the horizontal direction or the maintenance state is canceled and provided in the coil spring 420 or the worm wheel 220 of the foul lever 400 It can be restored by the restoring force of the worm wheel spring.

As shown in FIGS. 13 to 15, the pivoting pushing lever 840 has a rear surface of the stepped portion 540 of the catch lever 500, that is, a surface forming a position opposite to the side on which the stepped surface 541 is formed. The contact state with the interference protrusion 650 of the open stay part 600 is released by interlocking rotation of the pushing lever 830 by interlocking and rotating when the catch lever 500 is forcibly rotated when the striker 10 enters. Configure it to be possible.

In this way, when the contact state between the interference protrusion 650 and the pushing lever 830 of the open stay part 600 is released, the open stay part 600 exerts a restoring force by the first spring 620 and the foul lever 400 The stop lever 640 of the open stay part 600 by the restoring force of the coil spring 420 and the restoring force of the worm wheel spring 222 of the worm wheel 220 of the hold link 300 is the protrusion of the transfer control block 320 ( 322) It comes over to the curved surface 321 side from the position supporting the side.

When this state is reached, the holding link 300 is formed by the restoring force of the coil spring 420 of the foul lever 400 and the restoring force of the worm wheel spring 222 provided in the worm wheel 220 of the release power transmission unit 200. It can be moved to the right when viewed in the drawing.

As described above, according to the restoration of the foul lever 400, the lock release protrusion 440 of the foul lever 400 is bound to the stepped portion 540 of the catch lever 500 as shown in FIGS. It consists of a configuration that converts to a locked state.

When explaining the operational relationship of the present invention according to the above configuration, first, a signal for opening the tail gate (not shown) by the driver of the vehicle (not shown) is applied to the control unit 700 side so that the release motor 100 of the actuator is When driven, the worm wheel 220 rotates by the release power transmission unit 200 so that the hold link 300 coupled thereto is shifted horizontally to the left as viewed in the drawing.

In accordance with the horizontal transfer of the hold link 300, the transfer control block 320 protruding from the lower end of the hold link 300 is also transferred in conjunction with the transfer control block 320 of the foul lever 400 in contact with the transfer control block 320. The extension connection part 430 is pushed so that it rotates counterclockwise around the foul shaft 410.

According to the clockwise rotation of the foul lever 400 as described above, the binding state between the lock release protrusion 440 and the stepped portion 540 of the catch lever 500 is released, and the catch lever 500 is It is rotated in a counterclockwise direction and the access groove 520 is positioned in the downward direction.

In this state, the tail gate is open.

The tail gate opened as described above can be opened by the driver. As in the present invention, when snow or various kinds of luggage are placed on the top of the tail gate, the open state should be maintained without being converted to a locked state.

When the hold link 300 is horizontally transferred, the stop lever 640 of the open stay part 600 in contact with the front curved surface 321 of the transfer control block 320 at the bottom of the hold link 300 is transferred to the transfer control block. It is located on the side of (320) and serves as a pusher.

In this state, as shown in FIG. 13, the hold link 300 is the restoring force of the foul lever 400 or the hold link 300 by the worm wheel spring 222 provided in the worm wheel 220 in the right direction. It prevents it from being moved.

In the present invention, the role of preventing movement of the hold link 300 in the right direction by the restoring force of the foul lever 400 as described above is the hold link 300 to the right by the worm wheel spring 222 provided in the worm wheel 220. It can be prevented from moving in the direction of restoration.

As described above, in a state in which the transfer of the hold link 300 in the right direction is suppressed by the restoring force of the foul lever 400 or the restoring force of the worm wheel spring of the worm wheel 220, the tail gate remains open.

When the tail gate opened as described above is completely opened by the driver and then closed again, the striker 10 is inserted into the entry groove 520 of the catch lever 500 facing downward.

The catch lever 500 is forcibly rotated in a clockwise direction by the force of the striker 10 inserted into the entrance groove 520, and the stepped portion 540 of the catch lever 500 becomes the foul lever 400 according to the rotation. ), the locking state is reached by passing through the lock hejae protrusion 440.

At the same time, as the catch lever 500 rotates in the clockwise direction, the stepped portion 540 side of the catch lever 500 pushes the pivoting pushing lever 840 of the lock restoration unit 800, and the second spring 810 The pushing lever 830 is rotated interlockingly by the restoring force, and it is shorted with the stop lever 640 of the open stay part 600 to maintain the locked state of the catch lever 500.

At this time, the open detection switch 710 is positioned toward the sensor short groove 550 of the catch lever 500 to apply a signal to the controller 700 that the tail gate has been switched to a locked state.

As described above, although the present invention has been described by a limited embodiment and drawings, the present invention is not limited to the above embodiment, as well as from the above description by a person having ordinary technical knowledge in the field to which the present invention belongs. It goes without saying that various modifications and variations may be possible.

Therefore, the technical idea in the present invention should be grasped by the claims described below, but it will be apparent that all of the equivalent or equivalent modifications thereof belong to the scope of the technical idea of the present invention.

One; Housing 10; Striker
100; Release motor 110; Rotating shaft
200; Release power transmission unit 210; Worm
220; Worm wheel 221; Worm wheel shaft
230; Pinion 300; Hold link
310; Body part 311; Horizontal gear
312; Long hole 320; Transfer control block
321; Curved surface 322; projection part
400; Paulever 410; Foul axis
420; Coil spring 430; Extension connection
440; Lock release protrusion 500; Catch lever
501; Catch pin 502; Catch coil spring
510; Catch pin hole 520; Access groove
530; Curved contact surface 540; Stepped
541; Stepped surface 550; Sensor short groove
560; Open sensing connection surface 600; Open Stay
610; Axis 620; First spring
630; Link body 640; Stop lever
650; Interference protrusion 700; Control unit
710; Open detection switch 800; Rock restoration department
810; Second spring 820; Restoration link body
830; Pushing lever 840; Rotating Pushing Lever

Claims (9)

A release motor fixed inside the housing;
A release power transmission unit interlocking with the driving of the release motor to transmit power;
A stop of the open-stay unit configured to convert the power transmitted from the release power transmission unit into a linear motion and to be transferred to the left and right, and to be in contact with the curved surface of the front side of the transfer control block provided at the lower end of the hold link. A hold link in which the lever is positioned to the side of the transfer control block so that the hold link is horizontally moved so as to provide a restoring force of the foul lever, but not restored to its original state;
A foul lever that is in contact with a lower end of the hold link and rotates in association with the linear motion of the hold link;
A catch lever provided in a housing in contact with a side surface of the foul lever so as to be interlocked and rotatable according to the rotation of the foul lever and having an access groove through which the striker enters and exits;
For controlling the restoring force of the hold link by contacting one side of the transfer control block provided at the lower end of the hold link toward the end of the link body to form a link body that is rotated by providing an elastic force by a first spring around one axis. The stop lever is formed to protrude vertically and forms an interference protrusion protruding toward a lower side of one end side of the link body, so that the striker is in contact with the other lower side of the hold link and is rotated from the entry groove of the catch lever. An open stay unit for maintaining a position that can be separated;
A lock restoration unit forcibly rotating the open stay unit by the entry of the striker to release the fixed holding state of the hold link, thereby returning the foul lever to switch the catch lever to a locked state;
A latch applied to a trunk and a tail gate comprising a.
The method of claim 1,
The hold link is provided with a horizontal tooth for tooth coupling with the pinion of the release power transmission unit on one side, and a body portion having a long hole formed on the other side, and a transfer control block integrally formed at the lower end of the body portion. Latch applied to the gate and trunk.
The method of claim 2,
A latch applied to a tail gate and a trunk comprising forming a protrusion on one side of the curved surface of the front surface of the transfer control block.
The method of claim 1,
The foul lever has a coil spring wound on the outer circumferential surface of the foul shaft to have a restoring elastic force, and a lock release protrusion for releasing the lock state of the catch lever is formed on the inner surface, and extends from the end side of the foul lever. A latch applied to a trunk and a tail gate including configuring an extension connection.
The method of claim 1,
The catch lever is in contact with the side surface of the foul lever by the elastic force of the catch coil spring, which is pressed against the outer circumference of the catch pin fixed inside the housing through the catch pin hole passing through, and is installed so as to be interlocked and rotated according to the rotation of the foul lever. , An access groove through which the striker enters and exits to the outer circumferential surface, a curved contact surface extending to the outer side of the access groove and in contact with the foul lever, a stepped part having a stepped surface extending from the end of the curved contacting surface, and a concave extending from the end of the stepped part A latch applied to a tail gate and a trunk comprising an arc-shaped sensor short-circuit groove, and a convex open sensing connection surface extending from an end of the sensor short-circuit groove.
The method of claim 1,
Applied to the tail gate and the trunk further comprising a control unit provided with an open detection switch for detecting an open or locked state of the tail gate by connection or short circuit with the outer surface of the catch lever according to the forward and reverse driving control of the release motor. Latch.
delete delete The method of claim 1,
The lock restoring part constitutes a restoring link body that is rotated by the restoring force of the second spring with respect to the axis, a pushing lever is provided toward the end of the restoring link main body, and a pivoting pushing lever within a right angle range from the restoring link body. The tailgate and the latch applied to the trunk.

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