DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an embodiment of a tailgate latch for a vehicle according to the present invention will be described with reference to the accompanying drawings. In this process, the thickness of the lines or the width of the components shown in the drawings may be exaggerated for clarity and convenience of explanation.
In addition, the terms described below are defined in consideration of the functions of the present invention, which may vary depending on the intention or custom of the user, the operator. Therefore, definitions of these terms should be made based on the contents throughout this specification.
FIG. 1 is a perspective view illustrating a tailgate latch for a vehicle according to an embodiment of the present invention. FIG. 2 is a perspective view showing the inside of a latch unit according to an embodiment of the present invention. FIG. 4 is a rear view illustrating a latch body according to an embodiment of the present invention. FIG.
In the following description of the present invention with reference to the drawings, the front side of the latch main body 11 is referred to as a front side, the back side of the latch main body 11 is referred to as a back side, As a standard, the left side is called the left side, the right side is the right side, the clockwise direction is the forward direction, and the counterclockwise direction is the reverse direction.
Referring to FIG. 1, a tailgate latch for a vehicle according to an embodiment of the present invention includes a latch portion 10, an actuator portion 30, and a drive control portion 50. The latch portion 10 is connected to the actuator portion 30 by a cable 20 and restrains the striker S in multiple stages by the movement of the cable 20. [ The actuator unit 30 moves the other end of the cable 20 connected to the latch unit 10 while winding or unwinding one end of the cable 20. The drive control section 50 automatically controls the drive of the actuator section 30 and the drive of the release motor section 18 provided in the latch section 10. (See Figs. 18 to 25)
2, the latch unit 10 includes a latch housing 17, a latch body 11, a release motor unit 18, and a safety lever unit 19 according to an embodiment of the present invention. The latch housing 17 constitutes a support frame and an installation space portion in which the latch main body 11, the release motor portion 18, and the safety lever portion 19 can be installed at a predetermined position. The latch housing 17 is installed in the tailgate of the vehicle while covering the end portions of the latch body portion 11, the release motor portion 18, and the safety lever portion 19 that contacts the latch body portion 11. [ The latch main body 11 includes a plurality of lever members 12, 13, 14, 15, 16 to restrain the movement of the striker S in multiple stages. The release motor portion 18 automatically releases the restraining state of the striker S by the rolling force. The safety lever portion 19 manually releases the restraint state of the striker S by an external force applied by the user.
3 and 4, a latch body 11 according to an embodiment of the present invention includes a latch body 12, a foil lever 13, a close lever 14, a release lever 15, (16). The latch body 12 and the close lever 14 are rotatably provided on the first rotary shaft portion 41 and the pull lever 13 and the release lever 15 are disposed on the left side of the first rotary shaft portion 41 And is rotatably installed on the second rotary shaft portion 42. The connecting lever 16 is rotatably mounted on the close lever 14 by a third rotary shaft portion 43. The latch body 12, the foil lever 13, the close lever 14, the release lever 15 and the connecting lever 16 are linked with each other in the above-described arrangement and are rotated in forward and reverse directions, ), Or releases the restraint state of the striker (S). On the other hand, the latch body 12, the forele lever 13, and the close lever 14 are configured such that the rotation range is limited by the first stopper portion 171, the second stopper portion 172, and the third stopper portion 174, do.
FIG. 5 is a perspective view illustrating a latch body according to an embodiment of the present invention, FIG. 6 is a perspective view illustrating a pull lever according to an embodiment of the present invention, FIG. 7 is a perspective view of a pawl lever according to an embodiment of the present invention, FIG. 8 is a perspective view illustrating a close lever according to an embodiment of the present invention. FIG. 9 is a perspective view illustrating a release lever according to an embodiment of the present invention. 10 is a perspective view illustrating a connecting lever according to an embodiment of the present invention.
3 to 5, the latch body 12 is rotatably installed in the latch housing 17 with an entry / exit slot 126 through which the striker S is inserted / The latch body 12 according to an embodiment of the present invention has a structure in which a forelever latching portion 121, a striker restricting portion 125, a switch contact portion 127, and a stopper latching portion 128 are integrally connected.
The pull lever engaging portion 121 is rotatably installed on the first rotary shaft portion 41 and has a full open groove portion 122, a bracing groove portion 123 and a ball lock groove portion 124, . The full open groove portion 122 includes a first step portion 122a and a first outer peripheral portion 122b. The first step portion 122a forms a stepped shape at the rotational center side of the latch body 12 on the outer surface of the latch body 12. The first outer circumferential portion 122b is formed continuously with the first step 122a and extends in a reverse direction with a constant radius. The broken groove portion 123 includes a second step portion 123a and a second outer peripheral portion 123b. The second step portion 123a is formed continuously with the first outer peripheral portion 122b and has a stepped portion concave toward the rotational center side of the latch body 12. [ The second outer circumferential portion 123b is continuous with the second outer circumferential portion 123b and extends in a reverse direction with a constant radius smaller than that of the first outer circumferential portion 122b. The pawl groove portion 124 is formed continuously with the second outer peripheral portion 123b and includes a third step portion 124a which forms a stepped shape at the rotational center side of the latch body 12.
The end of the foil lever 13 is held in the state of being caught by the first step portion 122a in a state in which the striker S does not enter the entry / When the latch body 12 is first rotated in the forward direction due to the entry of the striker S, the contact portion with the foil lever 13 is gradually moved from one side of the first outer peripheral portion 122b to the other side, 123a. At the same time, the foil lever 13 is rotated in the forward direction and hooked on the second step portion 123a. When the latch body 12 further rotates in the positive direction in conjunction with the operation of the actuator unit 30, the contact portion with the foil lever 13 is gradually moved from one side of the second peripheral portion 123b to the other side, At the same time, the forelever 13 is further rotated in the forward direction and is caught by the third step jaw portion 124a.
The foil lever 13 is in contact with the first outer circumferential portion 122b before being engaged with the second shoulder portion 123a so as to be constant in a state of being in contact with the first outer circumferential portion 122b as the first outer circumferential portion 122b and the second outer circumferential portion 123b have a certain radius, And maintains a predetermined angle in a state of being in contact with the second outer peripheral portion 123b before being caught by the third step jaw portion 123a. The signal switching of the half lock position 51 provided in contact with the foil lever 13 can be instantaneously and instantaneously made at the time when the end of the foil lever 13 is caught by the second step portion 123a . The signal switching of the pull lock position 52 provided in contact with the pull lever 13 can be instantaneously and instantaneously performed when the end of the pull lever 13 is hooked on the third step portion 123a. Therefore, the drive control of the actuator unit 30 using the spare lock position 51 and the pull lock position 52 is performed by the pull lever 13, the full open groove portion 122, the defrost groove portion 123, the ball lock groove portion 124 ) In the case where the contact is made with respect to each other.
The striker restricting portion 125 is connected to the forelever latching portion 121 on the reverse side of the forelever latching portion 121 and forms the entry and exit groove 126 between the forelever latching portion 121 and the forelever latching portion 121. [ The latch body 12 is pushed by the striker S that has entered the entry and exit groove 126 and is rotated in the forward direction. At this time, the striker restricting portion 125 restrains the retreat of the striker S that has entered the entry and exit groove 126 And functions as a stopper.
The switch contact portion 127 is a portion contacting or spaced from the open sensing switch 54 in accordance with the rotation angle of the latch body 12. The switch contact portion 127 is formed between the forward end of the foil lever engaging portion 121 in which no interference occurs between the lever members 12, 13, 14, 15, 16 and the reverse end portion of the striker restricting portion 125 . The switch contact portion 127 is in contact with the open sensing switch 54 when the latch body 12 does not arrest the striker S and when the latch body 12 restrains the striker S, 54).
The stopper latching portion 128 is formed at the edge of the striker restricting portion 125 and restrains the rotation of the latch body 12 in the reverse direction while being caught by the first stopper portion 171 when the latch body 12 is rotated in the reverse direction. More specifically, in order to prevent the latch body 12 from further rotating in the reverse direction in a state in which the pull lever 13 is engaged with the full open groove portion 122, the stop lever latching portion 128 causes the pull lever 13 to slide in the full open groove portion 122 in a state in which the first stopper portion 171 is engaged. The operation of the foil lever 13 in contact with the latch body 12 as well as the latch body 12 can be stably performed in a constant trajectory by restricting the rotational angle of the latch body 12 in the reverse direction by the stopper latching portion 128. [ And the operating reliability of the open sensing switch 54 in contact with the latch body 12 can be secured.
3, 4, 6, and 7, the pull lever 13 is resiliently supported toward the latch body 12 and has a full open groove portion 122, a flared groove portion 123, a ball lock groove portion 124, So that the rotation state of the latch body 12 is maintained. The pull lever 13 according to the embodiment of the present invention includes the second-first shaft coupling portion 131, the engagement lever portion 132, the switch contact lever portion 133, the interlocking contact portion 134, (137) are integrally connected.
The second-axis coupling portion 131 is rotatably installed on the second rotary shaft portion 42 and is elastically supported in a forward direction by an elastic member such as a spring. The latching lever portion 132 extends from the second-1-axis coupling portion 131 to the right where the latch body 12 is located and has an end open to the full open groove portion 122, the flared groove portion 123, 124).
The switch contact lever portion 133 extends from the second-1 axis coupling portion 131 in a direction different from the engaging lever portion 132, for example, upwardly away from the latch body 12, There is formed a hex lock position contacting portion 135 in contact with the lock position 51. [ The locking lever portion 312 is kept in contact with the lock lock position 51 while the lock lock position contacting portion 135 is kept in contact with the full open groove portion 122 and the locking lever portion 312 is rotated in the forward direction The engaging lever portion 312 is spaced apart from the spare lock position 51 even when the engaging lever portion 312 is caught by the pulled-out groove portion 124. [
The interlocking contact portion 134 is formed to protrude toward the release lever 15 at the end of the switch contact lever portion 133. When the release lever 15 is rotated in the reverse direction, the interlocking contact portion 134 is brought into contact with the release lever 15, and then the pull lever 13 is pivoted at the same displacement together with the release lever 15. When the foil lever 13 is rotated in the opposite direction as described above, the engaging lever portion 132 in the engaged state with the fractured groove portion 123 or the pulled-out groove portion 124 is separated from the fractured groove portion 123 It is separated. At this time, the end of the latch lever portion 312 is located inside the locus of the full open groove portion 122, and the latch body 12 is rotated in the reverse direction until the latch lever portion 312 is caught by the full open groove portion 122 And the forward lock state and the pull lock state are released when the striker S is restrained by the striker restraining unit 125.
On the interlocking contact portion 134, a pullecx position contacting portion 136 contacting the pullex position 52 is formed. The pull lock position contact portion 136 remains in contact with the pull lock position 52 while the hook lever portion 312 is engaged with the pull open groove portion 122 and the pull open groove portion 123, 312 are rotated in the forward direction to be caught by the pool lock groove 123, the lock lock position 52 is spaced apart.
By forming the lock lock position contact portion 135 and the lock lock position contact portion 136 in the switch contact lever portion 133 and the interlock contact portion 134 as described above, It is possible to sequentially turn on and off the arranged pulse position 51 and the pulsed position 52. [ For example, when the latch body 12 for restricting the striker S rotates in the forward direction, the engaging lever portion 132 is in contact with the fracture groove portion 123 and the pull-lock groove portion 124 in order, The signal of the spare lock position 51 is switched at the timing when the lock lever 132 is caught by the broken lock groove portion 123. When the latch lever portion 132 is engaged with the pull lock groove portion 124, The signal is switched. The drive control unit 50 receives the switch signal of the full lock position 51 and the full lock position 52 as described above and automatically drives the actuator unit 30 in accordance with the operation state of the latch main body 11 Can be controlled.
The pivoting restraining lever portion 137 is spaced apart from the latching lever portion 132 and the switch contact lever portion 133 in the direction of the second-axis coupling portion 131, for example, So that the forward rotation of the foil lever 13 is restrained while being caught by the second stopper portion 172 when the fool lever 13 is rotated in the forward direction. More specifically, when the engaging lever portion 132 is engaged with the ball lock groove portion 124, the rotation restricting lever portion 137 prevents the engaging lever portion 132 from moving in the pull- And is in contact with the second stopper portion 172 in a state of being engaged with the second stopper portion 124. The forward rotation angle of the pull lever 13 is constantly restricted by the pivotal restraining lever portion 137 so that the latch body 13 and the latch body 12 which are in contact with the pull lever 13 as well as the pull lever 13 and the release lever 15 The operation can be stably performed in a constant locus, and operational reliability of the half lock position 51 and the pull lock position 52 in contact with the foil lever 13 can be ensured.
3, 4, and 8, the close lever 14 has a latching groove portion 143 at an edge portion thereof and is provided coaxially with the latch body 12, is elastically supported in a reverse direction, And is rotated in the forward direction. The close lever 14 according to an embodiment of the present invention has a structure in which the first shaft coupling portion 141, the extension lever portion 142, and the cable coupling portion 144 are integrally connected.
The first shaft coupling portion 141 is rotatably installed on the first rotary shaft portion 41 and is elastically supported in a reverse direction by an elastic member such as a spring. The extension lever portion 142 is formed to extend in the radial direction at the first shaft coupling portion 141 and extend further upward than the latch body 12. A connecting lever 16 is pivotally coupled to an end of an extension lever portion 142 that is not in contact with the latch body 12 and a hook pin 167, (143) are formed. The closing lever 14 is rotatably coupled to the extension lever 142 in such a manner that the connecting lever 16 is pivotally coupled to the extension lever 142 and the support pin 167 is hooked, To the latch body (12) via the connecting lever (16).
When the cable 20 is pulled toward the actuator 30, the close lever 14 is rotated in the forward direction and the connecting lever 16 is rotated in the forward direction in conjunction with the hook 20 so that the latching pin 165 provided on the connecting lever 16 And is moved into the locus of the full open groove portion 122. The supporting pin 167 provided on the connecting lever 16 is caught in the engaging groove 143 in a state in which the engaging pin 165 provided on the connecting lever 16 is caught in the full open groove 122. The connecting lever 16 is able to stably transmit the turning force of the close lever 14 to the latch body 12 via the latch pin 165 in a state where the connecting lever 16 is caught by the latching groove portion 143, (See Figs. 22 and 23)
When the cable 20 is released from the actuator 30, the close lever 14 is rotated in the reverse direction by the restoring force of the elastic member, and the connecting lever 16 is rotated in the opposite direction in association with the restoring force of the elastic member, The engaging pin 165 is moved out of the locus of the full open groove 122. At the same time, the support pin 167 provided on the connecting lever 16 is also spaced from the engagement groove 143 (see Figs. 24 and 25)
When the closing lever 14 is rotated in the reverse direction as described above, the extension lever portion 142 is caught by the third stopper portion 173 (see Fig. 2), and the reverse rotation of the closing lever 14 is restrained. More specifically, the extension lever portion 142 is engaged with the third stopper portion 173 in a state in which the close lever 14 is rotated in the reverse direction and returned to the initial position before being pulled by the cable 20 and rotated in the forward direction, And further reverse rotation is restrained. The operation of the connecting lever 16 in contact with the close lever 14 as well as the close lever 14 can be stably performed in a constant trajectory by restricting the reverse rotation angle of the close lever 14 to be constant.
The cable engaging portion 144 is connected to the extension lever portion 142 with a ring shape to which the cable 20 can be hooked and is connected to the first shaft engaging portion 141, (142). The cable 20 includes an extension portion 21 formed to extend between the latch portion 10 and the actuator portion 30 and a hole portion 23 engaged with the extension lever portion 142, And a lever engaging portion 22 coupled to an end of the lever.
Conventionally, in connecting the end portion of the cable 20 to the structure such as the lever member, a circumferential stopper is connected to the end of the cable 20, and a pair of circular hole portions, And then assembled to each other. According to this conventional structure, when the cable 20 is tilted at various angles and a moving force is applied to the cable 20, the moving force is not uniformly transmitted to the both ends of the hook, As a result, a part of the movement force acts and consumes a twisting force on the structure, so that the operation efficiency of the structure using the cable 20 as a power transmitting member is lowered and the overload of the transmission member moving the cable 20 is caused And a clearance is generated and expanded in the circular hole portion to which the cable 20 is coupled, so that it becomes difficult for the moving force of the cable 20 to be uniformly transmitted to the structure.
The contact portion between the close lever 14 and the cable 20 can be prevented from being caught by the cable jamming portion 144 when the cable jamming portion 144 is formed in an annular shape and the hole portion 23 is formed in the lever jamming portion 22, Only one portion corresponding to the contact portion between the portion 144 and the hole portion 23 is consistently generated. Therefore, the moving force applied to the cable 20 can be stably transmitted to the cable catching portion 144 through the hole portion 23 formed in the lever catching portion 22, regardless of the inclination of the cable 20.
3, 4 and 9, the release lever 15 has a pin guide portion 153 at an edge portion thereof and is provided coaxially with the foil lever 13, And is elastically supported to the body 12 side. The release lever 15 according to an embodiment of the present invention has a structure in which the second 2-axis coupling portion 151, the guide lever portion 152, and the release lever portion 157 are integrally connected.
The release lever 15 is brought into contact with the interlocking contact portion 134 provided on the foil lever 13 when the release lever 15 is rotated in the reverse direction away from the latch body 12 so that the foil lever 13 is interlocked So that they rotate together in the opposite direction. When the forele lever 13 is rotated in the reverse direction, the latch body 132 is rotated in the reverse direction while being separated from the latch lock groove 123 or the pool lock groove 124 formed in the latch body 12 , And returns to the initial angle before restraining the striker (S).
The second 2-axis coupling portion 151 is rotatably installed on the second rotary shaft portion 42 and is elastically supported in a forward direction by an elastic member such as a spring. The guide lever portion 152 is formed to extend from the second-2-axis coupling portion 151 to the latch body 12 side. A pin guide portion 153 is formed on one side of the edge portion of the guide lever portion 152 so as to be in contact with a guide pin 166 provided on the connecting lever 16 and a foil lever in contact with the interlocking contact portion 134 is provided on the other side The pressing portion 156 is formed. The pin guide portion 153 according to an embodiment of the present invention includes a close guide portion 154 and a release guide portion 155.
The close guide portion 154 is a portion that comes into contact with the guide pin 166 when the close lever 14 rotates in the forward direction or the reverse direction. The close guide portion 154 has a structure in which a first inclined portion 154a and a second inclined portion 154b are continuously formed so as to be inclined at different angles. The first inclined portion 154a and the second inclined portion 154b have a pointed shape.
When the cable 20 is pulled toward the actuator unit 30 and the closing lever 14 is rotated in the forward direction, the connecting lever 16 axially coupled to the closing lever 14 is rotated in the forward direction. At this time, the release lever 15 remains stationary, and the guide pin 166 provided on the connecting lever 16 is moved toward the second inclined portion 154b by the first inclined portion 154a, and the connecting lever 16) is moved into the locus of the full open groove portion 122 (see Figs. 22 and 23)
When the cable 20 is released from the actuator 30 and the close lever 14 is rotated in the opposite direction, the connecting lever 16 axially coupled to the close lever 14 interlocks and is rotated in the reverse direction. At this time, the release lever 15 remains stationary, and the guide pin 166 is moved to the first inclined portion 154a side by the second inclined portion 154b, so that the engaging pin 165 is moved to the full open groove portion 122). (See Figs. 24 and 25)
The guide lever portion 152 according to an embodiment of the present invention is formed to be arc-shaped along the locus of the full open groove portion 122 and extends along the trajectory of the full open groove portion 122 in the reverse direction (See Figs. 32 and 34). Thus, the release lever 15 is rotated in the reverse direction, whereby the engaging pin 165 ) From the full open groove 122 at any time.
More specifically, the latching pin 165 is moved to the outside of the locus of the full open groove portion 122 during the normal releasing operation of the actuator unit 30 as described above. However, due to an operation error of the actuator unit 30 or the like There may be a case where the latching pin 165 is retained in the full open groove portion 122. In this case also, when the release lever 15 is rotated in the reverse direction, the guide lever portion 152 is moved radially outward of the latch body 12, and the engaging pin 165 is engaged and the radially outer side of the latch body 12 . Therefore, when the striker S is to be released from the restraint, the release lever 15 is rotated in the reverse direction so that the latching pin 165 is always separated from the full open groove portion 122, that is, And the latch body 12 can be returned to an initial angle.
The release guide portion 155 is a portion that is in continuous contact with the guide pin 166 when the release lever 15 rotates in the forward direction or the reverse direction. The guide pin 166 can be smoothly moved from the second inclined portion 154b side to the end side of the guide lever portion 152 or vice versa by riding the edge portion of the guide lever portion 152 So as to form a concave curve toward the end side of the guide lever portion 152 on the side of the second inclined portion 154b.
When the release lever 15 is rotated in the reverse direction by the operation of the release motor 18 or the safety lever 19, the contact portion between the release lever 15 and the guide pin 166 is moved toward the second inclined portion 154b side And is gradually moved toward the end side of the guide lever portion 152 along the curve formed by the release guide portion 155. [ At this time, the guide pin 166 is gradually pushed in the direction in which the guide pin 166 is in contact with the release guide portion 155, that is, in a state of being in contact with the radially outer edge portion of the release lever 15 and away from the latch body 12 So that the connecting lever 16 is completely spaced from the locus of the latch body 12 (see Figs. 31 to 34)
The release lever 15 is rotated in the forward direction by the restoring force of the elastic member when the release motor 15 or the safety lever portion 19 is stopped after the release lever 15 is rotated in the reverse direction, The contact between the release lever 15 and the guide pin 166 is released. At this time, the connecting lever 16 is kept spaced apart from the locus of the latch body 12 (see Figs. 37 to 40)
The release lever portion 157 extends from the second-second shaft coupling portion 151 to the release motor portion 18 and the safety lever portion 19 and contacts the release motor portion 18 and the safety lever portion 19 . The release lever portion 157 is rotated in the reverse direction in conjunction with the operation of the release motor portion 18 or the safety lever portion 19 and the second-second axis coupling portion 151 and the guide lever portion 152 are coupled together And is rotated in the opposite direction at the same angular displacement.
The release lever portion 157 according to an embodiment of the present invention includes a lever contact portion 158 and a motor contact portion 159. [ The lever contact portion 158 is formed to extend in the radial direction at the second-2-axis coupling portion 151 and contacts the safety lever portion 19. The motor contact portion 159 is formed so as to extend further toward the release motor portion 18 side at the end of the lever contact portion 158 and contacts the release motor portion 18. The release lever portion 157 can be automatically rotated by driving the release motor portion 18 so that the striker S can be released from the restrained state and the release lever portion 157 To manually release the restraint state of the striker (S).
3, 4, and 10, the connecting lever 16 is rotatably provided on the close lever 14, and the rotational force of the close lever 14 during the forward rotation of the close lever 14 is transmitted to the latch body 14 12 to further rotate the latch body 12 in the forward direction. The connecting lever 16 according to an embodiment of the present invention includes a lever body portion 161, an engaging pin 165, a guide pin 166, and a support pin 167.
The lever body portion 161 is rotatably provided to the close lever 14 by the third rotary shaft portion 43. [ The engaging pin 165 and the guide pin 166 protrude from one side of the lever body portion 161 facing the latch body 12 and on the other side facing the close lever 14, Are formed to protrude. The engaging pin 165, the guide pin 166 and the support pin 167 are engaged with the full open groove portion 122, the pin guide portion 153 and the engaging groove portion 143 in accordance with the rotation angle of the lever main body portion 161, Contact or separation.
The engaging pin 165 protrudes from one side end of the lever body 161. The guide pin 166 protrudes between the third rotary shaft portion 43 and the engaging pin 165. The guide pin 166 protrudes between the third rotary shaft portion 43 and the engaging pin 165, ) Side. The support pin 167 is formed on the other side of the lever body portion 161 so as to protrude on an end not in contact with the close lever 14. [
The guide pin 166 contacts the pin guide portion 153 and moves from the first inclined portion 154a to the second inclined portion 154b when the close lever 14 is rotated in the forward direction. At the same time, the engaging pin 165 enters the inside of the track of the full open groove portion 122 to be caught in the full open groove portion 122, and the support pin 167 is caught in the engaging groove portion 143. As described above, when the support pin 167 is caught in the engagement groove 143, further rotation of the connecting lever 16 in the forward direction is restrained. The close lever 14 transfers its rotational force to the latch body 12 via the latch pin 165 in a state in which the rotation of the close lever 14 is restrained by the support pin 167. The latch body 12 is pushed by the latch pin 165 caught in the full open groove portion 122 and further rotated in the forward direction.
The closing lever 14 is provided with a plurality of pin portions 165, 166 and 167 which are in contact with or spaced from the latch body 12, the release lever 15 and the close lever 14, The connecting lever 16 is used to transmit the rotational force of the close lever 14 to the latch body 12 in the forward rotation of the close lever 14 to rotate the latch body 12 further in the forward direction, .
More specifically, when the user performs an operation of lowering the tailgate of the vehicle, the latch body 12 is first rotated in the forward direction to arrest the striker S in one stage, and then the close lever 14 The latch body 12 is rotated in the forward direction through the connecting lever 16 to rotate the striker S in two stages while being rotated in the forward direction.
The guide pin 166 comes into contact with the pin guide portion 153 and moves from the second inclined portion 154b toward the first inclined portion 154a when the close lever 14 is rotated in the reverse direction. At the same time, the latching pin 165 is moved out of the locus of the full open groove 122, and then does not interfere with the reverse rotation of the latch body 12. According to the close lever 14 having the above-described structure, the multi-stage locking structure by the multi-stage rotation of the latch body 12 and the multi-stage locking structure of the latch body 12, while moving the latching pin 165 into and out of the locus of the full open groove 122, It is possible to stably implement the unlocking by the backward rotation of the terminal.
FIG. 11 is a perspective view illustrating a release motor unit according to an embodiment of the present invention, and FIG. 12 is a perspective view illustrating a release motor unit according to an embodiment of the present invention in a direction different from that of FIG.
2, 11, and 12, the release motor unit 18 includes a release motor 181, a lever pressing drum 183, and a release power transmission device 182. The release motor 181 is composed of a motor member for generating rotational power. The lever pressing drum 183 is rotated in conjunction with the rotation of the release motor 181, and the release lever 15 is rotated in the reverse direction. The release power transmitting device 182 transfers the rotational force of the release motor 181 to the lever pressing drum 183.
The lever pressing drum 183 according to an embodiment of the present invention includes a fourth shaft engaging portion 184, a release gear portion 185, a lever pressing portion 186, and a setting portion 187. [ The fourth shaft coupling portion 184 is rotatably installed on the fourth rotary shaft portion 44 and is elastically supported in a reverse direction by an elastic member such as a spring. The release gear portion 185 is formed in a gear shape on the outer peripheral portion of the fourth shaft engaging portion 184 and meshes with a gear member provided on the release power transmitting device 182. The lever pressing portion 186 is formed to protrude from the fourth shaft engaging portion 184 toward the release lever 15 and moves in the forward direction in conjunction with the driving of the release motor 181 to rotate the release lever 15 in the reverse direction .
The setting portion 187 is formed so that the lever protrudes from the fourth shaft engaging portion 184 on the opposite side of the pressing portion 186 and contacts the fourth stopper portion 174 to limit the rotation angle of the lever pressing drum 183 . The setting portion 187 of the release motor 181 contacts the one side of the pair of fourth stopper portions 174 and limits the forward rotation of the lever pressing drum 183. When the release motor 181 stops operating, the setting portion 187 abuts against the other of the pair of fourth stopper portions 174 and restricts the reverse rotation of the lever pressing drum 183. By the action of the setting portion 187 as described above, the lever pressing portion 186 is moved forward or backward within a certain angle range. Accordingly, not only the pressing portion 186 but also the rotation of the release lever 15 in contact with the lever pressing portion 186 can be stably performed within a constant trajectory.
The release power transmission device 182 according to an embodiment of the present invention includes a worm having a shape in which a spiral groove portion is continuously formed around a circumference and connected to the rotation shaft of the release motor 181, And a small diameter gear having a diameter smaller than that of the worm wheel and coaxially connected to the worm wheel and meshing with the release gear portion 185. When the release motor 181 is driven, the worm is rotated at the same angular displacement as that of the rotation shaft of the release motor 181, and the worm wheel engaged with the worm is firstly decelerated to rotate, and the release gear portion 185 is rotated It is decelerated secondarily through the small-diameter gear and rotated. The rotational force of the release motor 181 is transmitted to the lever pressing drum 183 in a state in which the rotational force of the release motor 181 is further increased by the multi-step deceleration as described above. By using the rotational force of the lever pressing drum 183, (13) can be stably rotated.
FIG. 13 is a perspective view illustrating a safety lever according to an embodiment of the present invention, FIG. 14 is a perspective view illustrating a safety lever according to an embodiment of the present invention, The safety lever portion according to one embodiment is a perspective view shown in a direction different from that of Figs.
2 and 13 to 15, the safety lever portion 19 according to an embodiment of the present invention includes a safety lever 191, a safety spring 196, a first rotation restricting portion 197, And a rotation restraining portion 198. The safety lever 191 is installed through the latch housing 17 and its inner end abuts against the release lever 15. The safety spring 196 elastically supports the safety lever 191 in a direction opposite to the direction in which the safety lever 191 is separated from the release lever 15. The first rotation restricting portion 197 is formed to protrude from the outside of the latch housing 17 and abuts against one side of the safety lever 191. The second rotation restricting portion 198 is disposed apart from the first rotation restricting portion 197 with the safety lever 191 interposed therebetween and abuts against the other side portion of the safety lever 191 which is turned forward by an external force.
As described above, the safety lever 191 is elastically supported in the reverse direction by the safety spring 196, and the first and second rotation restricting portions 197 and 198 can rotate the safety lever 191 in the forward or reverse direction . Accordingly, not only the safety lever 191 but also the rotation of the release lever 15 in contact with the safety lever 191 can be stably maintained in a constant locus. The safety lever 191 according to an embodiment of the present invention has a structure in which the fifth shaft coupling portion 192, the external lever portion 193, the internal lever portion 194, and the reinforcing rib portion 195 are integrally connected .
The fifth shaft coupling portion 192 is rotatably installed on the fifth rotary shaft portion 45 and is elastically supported in the reverse direction by the safety spring 196. [ The outer lever portion 193 is connected to the fifth shaft coupling portion 192 from the outside of the latch housing 17 and has a pressing portion 193d which can be pressed or held by a person by hand. The reverse edge portion of the outer lever portion 193 is in contact with the first rotation restraining portion 197 and the forward edge portion thereof is in contact with the second rotation restraining portion 198. [ The inner lever portion 194 is formed to extend from the fifth shaft engaging portion 192 to the inside of the latch housing 17 and has an end abutted against the release lever 15. The reinforcing rib portion 195 is formed in a lattice shape on the outer lever portion 193 to reinforce the flexural rigidity of the outer lever portion 193.
The outer lever portion 193 according to an embodiment of the present invention is constructed such that the first bending enhancement portion 193a, the lever extension portion 193b, the second bending enhancement portion 193c, and the pressing portion 193d are integrally formed And has a connected structure. The lever extension portion 193b extends obliquely toward the pressing portion 193d side of the fifth shaft engaging portion 192 and has both side edges thereof contacted with the first rotation restraining portion 197 and the second rotation restraining portion 198 respectively. The first bending reinforcing portion 193a is formed between one end of the lever extension portion 193b and the fifth shaft coupling portion 192 and has a bent shape in a forward direction. The second bending reinforcing portion 193c is formed between the other end of the lever extending portion 193b and the pressing portion 193d, and is bent in a reverse direction.
As described above, since the outer lever portion 193 includes the first bending enhancement portion 193a and the second bending enhancement portion 193c and has a multi-step bent shape, It is possible to further increase the bending stiffness with respect to the external force acting in the forward direction or the reverse direction, as compared with the case where the shape extending straightly up to the step 193d.
On the other hand, the lever extension portion 193b is provided on the fifth shaft 193b in order to secure the external force acting on the pressing portion 193d and the bending stiffness with respect to the pressing contact between the first rotation restricting portion 197 and the second rotation restricting portion 198. [ And is formed thicker than the engaging portion 192. The pressing portion 193d is formed to have a thicker thickness so as to secure a contact surface F that can be pressed or held by a person by hand. The first bending reinforcing portion 193a positioned between the fifth shaft coupling portion 192 and the lever extension portion 193b is gradually thicker from the fifth shaft coupling portion 192 toward the lever extension portion 193b It has a losing form. The second bending reinforcing portion 193c positioned between the lever extending portion 193b and the pressing portion 193d has a shape gradually becoming thicker toward the pressing portion 193d side from the lever extending portion 193b. As described above, the outer lever portion 193 has a shape that gradually becomes thicker toward the pressing portion 193d side from the fifth shaft coupling portion 192, thereby securing the rigidity and the contact surface F. [
The reinforcing rib portion 195 according to an embodiment of the present invention includes a first rib portion 195a and a second rib portion 195b. The first rib portion 195a has an outer lever portion 193d so as to reinforce the external force acting in the tangential direction of the fifth rotary shaft portion 45, for example, the external force acting in the forward direction on the pressing portion 193d. And is formed so as to extend in a tangential direction on one side surface of the substrate. A plurality of the first rib portions 195a are disposed in parallel to each other with a spacing distance therebetween. The second rib portion 195b extends in a direction different from the first rib portion 195a and interconnects the plurality of first rib portions 195a. In an embodiment of the present invention, the second rib portion 195b extends in a direction perpendicular to the first rib portion 195a and forms a lattice shape together with the first rib portion 195a. As described above, by forming the reinforcing rib portion 195 on one side surface of the outer lever portion 193, the bending stiffness against the external force acting on the external lever portion 193 can be further increased.
Even if the safety lever 191 is made of a synthetic resin material, the outer lever portion 193 is formed in a bent shape in a multistage manner as described above, and the thickness gradually increases toward the pressing portion 193d side in the fifth shaft coupling portion 192 By forming the reinforcing rib portion 195 on the outer lever portion 193, the flexural rigidity necessary for the operation of the safety lever portion 19 can be secured.
FIG. 16 is a perspective view showing the interior of the actuator according to one embodiment of the present invention, and FIG. 17 is a perspective view showing a winding drum according to an embodiment of the present invention.
16 and 17, an actuator unit 30 according to an embodiment of the present invention includes a take-up motor 31, a take-up drum 33, and a slewing power transmission device 32. The winding motor 31 is composed of a motor member for generating rotational power. The winding drum 33 is rotated in conjunction with the rotation of the winding motor 31 to wind or unwind the cable 20. The slewing power transmission device 32 transfers the rotational force of the winding motor 31 to the winding drum 33. [
The winding drum 33 according to the embodiment of the present invention includes the sixth shaft coupling portion 331, the retention gear portion 332, the cable winding portion 333, and the cam portion 335. The sixth shaft coupling portion 331 is rotatably installed on the sixth rotary shaft portion 46. The new-pitch gear unit 332 is provided on the outer periphery thereof with gear teeth meshed with the new-pitch drive power unit 32 and is coaxially connected to the sixth axis unit 331. The cable winding portion 333 forms a winding space portion 334 around which the cable 20 is wound with respect to the new-styling gear portion 332 and is coaxially connected to the sixth shaft coupling portion 331. The cam portion 335 is coaxially connected to the sixth shaft coupling portion 331 and is in contact with or spaced from the end switch 53 that terminates the drive of the winding motor 31 in accordance with the rotation angle.
The cam portion 335 includes a small diameter portion 336 and a large diameter portion 337. The small diameter portion 336 is formed at one side of the circumferential portion of the sixth shaft coupling portion 331 and faces the end switch 53 at a spacing distance. The large diameter portion 337 has a radius larger than that of the small diameter portion 336 and is formed continuously with the small diameter portion 336 along the circumferential portion of the sixth shaft coupling portion 331, And contacts the switch 53. The end switch 53 is in the OFF state when facing the small diameter portion 336 and is brought into contact with the large diameter portion 336 in the state facing the large diameter portion 337. [ Therefore, the end switch 53 is switched to the OFF state while the contact portion with the cam portion 335 is moved from the large-diameter portion 337 to the small-diameter portion 336 side.
The close lever 14 is rotated in the positive direction when the winding motor 31 for winding the cable 20 is driven in the forward direction and the close lever 14 is driven in the reverse direction when the winding motor 31, The end switch 53 is in a state in which the contact state with the winding drum 33 is changed as described above at the time when the close lever 14 is returned to the initial position while the close lever 14 is rotated in the reverse direction, Is turned off. When the reverse drive of the winding motor 31 is stopped at the time of signal switching of the end switch 53 as described above, the close lever 14 is returned to the initial position.
As described above, by using the cam portion 335 rotated in conjunction with the drive of the winding motor 31 and the end switch 53 switching the signal according to the rotation angle of the cam portion 335, The time point at which the driving is stopped can be consistently realized at the same time point when the close lever 14 is returned to the initial position and the return of the close lever 14 to the initial position can be stably realized.
The slewing power transmission device 32 according to the embodiment of the present invention includes a worm connected to the rotation axis of the winding motor 31 and a gear shape having a shape in which a helical groove is formed continuously around the circumference, A first small-diameter gear having a smaller diameter than the worm wheel and coaxially connected to the worm wheel, a large-diameter gear meshing with the first small-diameter gear, a second large-diameter gear coupled with the large- And a small-diameter gear (not shown).
When the rewinding motor 31 is driven, the worm is rotated at the same angular displacement as the rotation axis of the rewinding motor 31. The worm wheel engaged with the worm is first reduced in speed and rotated. The large diameter gear is rotated by the first small- And the new-gear 332 is decelerated thirdarily through the second small-diameter gear having a smaller number of gear teeth than the large-diameter gear. The rotation of the take-up motor 31 is transmitted to the take-up drum 33 in a state in which the rotational force of the take-up motor 31 is further increased by the multi-step deceleration as described above and the cable 20 is stably wound You can.
The drive control unit 50 controls the driving of the actuator unit 30 and pulls or uncovers the cable 20 toward the actuator unit 30. The drive control unit 50 controls the drive of the release motor unit 18 and the release lever 15 in the forward direction Or in the reverse direction. The drive control unit 50 according to an embodiment of the present invention includes a flop lock position 51, a pull lock position 52, a finishing switch 53, an open sensing switch 54, and a control unit 55.
The hip lock position 51 is provided so as to be in contact with the hip lock position contacting portion 135 provided in the foil lever 13. When the latch body (12) is pushed by the striker (S) that has entered the entry / exit groove (126) and is rotated in the first direction in the forward direction, the fork lever (13) is rotated in the forward direction. The pot lock position 51 is spaced apart from the pot lock position contact portion 135 in the forward rotation of the pull lever 13 and the signal thereof is switched.
The pull lock position 52 is disposed adjacent to the pull lock position 51 and is disposed in contact with the pull lock position contact portion 136 provided in the pull lever 13. [ When the cable 20 is pulled toward the actuator 30 by the forward driving of the actuator 30, the latch body 12 is rotated in the second direction in the forward direction, and the foil lever 13 is further rotated in the forward direction in conjunction therewith. The pull lock position 52 is spaced apart from the pull lock position contact 136 during forward rotation of this pull lever 13 and its signal is switched.
The latch lock position 51 and the pull lock position 52 are in an on state when the latch body 12 is in the fully open state in which the striker S is not constrained and the latch body 12 is in the multi- And the signal is switched to the OFF state when it is converted into the broken state and the broken state. A full open state in which the striker (S) is not constrained means a state in which the tailgate of the vehicle is open, and a state in which the tailgate of the vehicle is closed. Normally, when the vehicle is used, the tail gate is normally closed while the vehicle is running, and the tail gate of the vehicle is temporarily opened only when necessary. Therefore, the terminals of the spare lock position 51 and the pull lock position 52 are brought into contact with the foil lever 13 only temporarily in a state in which the collapsed state and the pull-lock state are maintained and maintained, And the like. As a result, it is possible to prevent the load and deformation of the switch terminal from continuing to contact with the foil lever 13, and to secure the mechanical operation stability and life of the switch terminal.
The end switch 53 is provided so as to face the cam portion 335 provided in the actuator portion 30. [ When the cable 20 is released from the winding drum 33 by the reverse driving of the actuator unit 30, the close lever 14 is rotated in the reverse direction and returned to the initial position. In this way, The state of contact with the cam portion 335 is changed and the signal of the end switch 53 is switched.
The end switch 53 maintains the OFF state facing the small diameter portion 336. When the open state is in the open state, the signal is switched to the ON state in contact with the large diameter portion 337, And is returned to the off-state while facing the small-diameter portion 336 again by the reverse drive of the motor 31. That is, the terminal of the end switch 53 is in contact with the cam portion 335 only temporarily from the time point when the false state is started until the time when the state of the pool lock is completed, and remains in a state away from the cam portion 335 in normal operation. As a result, it is possible to prevent the load and deformation of the switch terminal from continuing to contact with the cam portion 355, and to ensure the mechanical operation stability and life of the switch terminal.
The open sensing switch 54 is provided so as to be in contact with the switch contact portion 127 provided in the latch body 12. The open sensing switch 54 is pushed by the striker S which has entered the entrance groove 126 and is separated from the switch contact 127 while the latch body 12 is rotated in the first direction in the forward direction. The open sensing switch 54 keeps the signal in the state where the striker S is restrained by the latch body 12 and the latch body 12 is moved in the reverse direction in conjunction with the reverse rotation of the close lever 14 During rotation, the switch contacts 127 and their signals are switched differently.
The rotation angle of the latch body 12 means the state of restraint of the striker S and the open sensing switch 54 is turned on when the contact state with the latch body 12 changes according to the rotation angle of the latch body 12 And the signal is switched on and off. The open sensing switch 54 is used to determine whether the latch body 12 is in the open state in which the latch body 12 does not arrange the striker S, It can be detected directly on the body 12 side.
The control unit 55 receives the signals of the pulse lock position 51, the pull lock position 52, the end switch 53 and the open detection switch 54 to drive the actuator unit 30 and the release motor unit 18 . The control unit 55 drives the actuator unit 30 in the normal direction when the pulse lock position 51 is switched to the off state. The end of the cable 20 connected to the close lever 14 during the forward driving of the actuator unit 30 is pulled toward the actuator unit 30. [ Further, the control unit 55 drives the actuator unit 30 in the reverse direction when the signal is switched to the pull-lock position 52 in the off state. The end of the cable 20 connected to the close lever 14 in the backward driving of the actuator unit 30 is returned to the home position. Further, the control unit 55 ends the reverse drive of the actuator unit 30 when the end switch 53 is switched to the OFF state. The ends of the close lever 14 and the cable 20 are returned to their home positions when the actuator 30 is reversely driven.
In addition, the control unit 55 drives the release motor unit 18 when the tail gate is opened by the user, for example, when the button for tail gate opening is operated. The release lever 15 is rotated in the reverse direction when the release motor unit 18 is driven and the foil lever 13 is separated from the flawed recessed portion 123 or the pooled recessed portion 124, . In addition, the control unit 55 stops driving the release motor unit 18 when the open detection switch 54 is turned on. The lever pressing portion 186 and the release lever 15 provided in the release motor portion 18 are returned to the initial position by the restoring force of the elastic member when the release motor portion 18 stops operating.
FIG. 18 is a front view of a latch main body portion for explaining a full open step of a latch main body according to an embodiment of the present invention. FIG. 19 is a cross- 20 is a front view of a latch main body portion for explaining a latching step according to an embodiment of the present invention, and FIG. 21 is a cross-sectional view illustrating a latching step according to an embodiment of the present invention. Fig. 5 is a rear view of the latch main body.
FIG. 22 is a front view of a latch main body portion for explaining a pull lock step according to an embodiment of the present invention, FIG. 23 is a rear view of a latch main body portion for explaining a pull lock step according to an embodiment of the present invention, 24 is a front view of the latch main body to explain the lever returning step according to an embodiment of the present invention, and FIG. 25 is a rear view of the latch main body to illustrate the lever returning step according to an embodiment of the present invention.
FIG. 26 is a conceptual view for explaining a setting step and a release end step of an actuator unit according to an embodiment of the present invention, FIG. 27 is a conceptual diagram for explaining a winding start step according to an embodiment of the present invention, FIG. 28 is a conceptual diagram for explaining a winding step according to an embodiment of the present invention, FIG. 29 is a conceptual diagram for explaining a switching step according to an embodiment of the present invention, and FIG. FIG. 8 is a conceptual diagram illustrating a release step according to an embodiment. FIG.
FIG. 31 is a front view of a recessed portion of a latch portion illustrating a release start phase of a release release phase performed by operation of a release motor according to an embodiment of the present invention, and FIG. FIG. 3 is a rear view of the main portion of the latch shown in FIG.
FIG. 33 is a front view of a recessed portion of a latch shown in FIG. 33 to explain a release maintaining step according to an embodiment of the present invention. FIG. 34 is a rear view of a recessed portion of the latch body shown in FIG. And FIG. 35 is a front view of a recessed portion illustrating the operation of the latch body in the release holding step according to an embodiment of the present invention, and FIG. 36 is a view showing the operation of the latch body in the release holding step according to an embodiment of the present invention A back view of the lumbar region shown in FIG.
FIG. 37 is a front view of a recessed portion of a latch body portion for explaining a release releasing step according to an embodiment of the present invention, and FIG. 38 is a plan view of the latch body portion FIG. 39 is a front view of a recessed portion of a latch body portion illustrating a state in which a release releasing step according to an embodiment of the present invention is completed, and FIG. 40 is a plan view Fig. 5 is a rear view of a recessed portion of the latch body portion for explaining a completed state.
According to the latch unit 10 according to the embodiment of the present invention having the above-described structure, when the latch unit 10 is in the fully open step S1, the decoupling step S2, the pool lock step S3, the lever return step S4, And the releasing step S5 are sequentially performed.
18 and 19, before the striker S enters the access groove 126, the engaging lever portion 132 of the pull lever 13 is engaged with the full open groove 122 Quot;) ". The user opens the tailgate of the vehicle by lifting the tailgate upward, and the full-open stage S1 is maintained.
The striker S enters the access groove 126 as shown in Figs. 20 and 21 and the latch body 12 is pushed by the striker S and is first rotated in the forward direction, (S) in one stage. The end of the latch lever portion 132 is detached from the pull open groove portion 122 while the latch body 12 is pushed by the striker S and is rotated in the forward direction in the forward direction, The signal of the half lock position 51 is switched by the forward primary rotation of the actuator 13 and the forward driving of the actuator unit 30 is started. When the user lowered the tailgate of the vehicle to the lower side, the striker S coupled to the vehicle body from the lower side of the tailgate enters the latching portion 10 to start the decoupling step S2.
In the pull-lock step S3, as shown in FIGS. 22 and 23, the latch body 12 is rotated in the forward direction to rotate the striker S in two stages in conjunction with the forward driving of the actuator unit 30 Means the operating state. The cable 20 is pulled toward the actuator unit 30 and the end of the cable 20 connected to the close lever 14 is pulled toward the positive side of the close lever 14 To the right side).
The latching pin 165 of the connecting lever 16 enters the inside of the track of the full open groove portion 122 and moves in the full open groove portion 122 while the closing lever 14 is rotated in the forward direction in conjunction with the movement of the cable 20. [ 122). The movement of the latching pin 165 is performed as the lever body portion 161 is rotated in the forward direction in conjunction with the close lever 14 in a state in which the guide pin 166 is in contact with the close guide portion 154.
The moving force of the cable 20 is transmitted to the connecting lever 16 through the close lever 14 and is transmitted to the latch body 12 through the latch pin 165. [ The latching pin 165 is moved in conjunction with the movement of the cable 20 in the state of being caught by the full open groove portion 122 and rotates the latch body 12 further in the normal direction. The movement of the latching pin 165 is made such that the support pin 167 is caught by the latching groove 143 and the forward rotation of the connecting lever 16 is restricted. The end of the engaging lever portion 132 is detached from the fractured groove portion 123 and caught by the ball lock groove portion 124 while the latch body 12 is pushed by the engaging pin 165 and secondarily rotated in the forward direction. The signal of the pull-lock position 52 is switched by the forward secondary rotation of the actuator 13 and the reverse drive of the actuator unit 30 is started.
The float step S3 is automatically started by signal switching of the pulse lock position 51 when the break step S2 is started and the striker S is restrained in multiple stages as described above. That is, when the user performs the operation of lowering the tailgate of the vehicle downward and restricting the striker S in one stage, an operation of restricting the striker S in two stages is automatically and continuously performed. Thus, the vehicle can be safely traveled in a state in which the departure of the striker S is restricted in multiple stages without restraining the striker S unstably. Accordingly, it is possible to prevent the risk of a safety accident that is caused when the tailgate is opened while the vehicle is running, and it is possible to prevent the loss or theft of the articles stored in the vehicle.
The lever returning step S4 corresponds to the operating state in which the closing lever 14 is returned to the initial position while being rotated in the opposite direction, as shown in Figs. 24 and 25, in conjunction with the reverse driving of the actuator unit 30. [ When the actuator unit 30 is driven in the opposite direction, the cable 20 is released from the actuator unit 30 and the end of the cable 20 connected to the close lever 14 is closed by the restoring force acting on the close lever 14. [ (The left side in Fig. 24) of the lever 14. [0050] At the same time, the close lever 14 is returned to the initial position while being rotated in the reverse direction by the restoring force of the elastic member.
The engagement pin 165 is moved to the outside of the locus of the full open groove portion 122 while the close lever 14 is rotated in the reverse direction in conjunction with the release of the cable 20. [ The movement of the latching pin 165 is performed as the lever body portion 161 is rotated in the reverse direction in conjunction with the close lever 14 in a state in which the guide pin 166 is in contact with the close guide portion 154. The end switch 53 is disengaged from the large diameter portion 337 and faces the small diameter portion 336 while the actuator motor 30 is being driven in the reverse direction, that is, during the reverse drive of the winding motor 31, The signal is switched and the reverse driving of the actuator unit 30 is ended.
The lever returning step S4 is automatically started by signal switching of the pull lock position 52 and the closing lever 14 is returned to the initial position as described above. That is, after performing the operation of restricting the striker S in the two stages while rotating the close lever 14 in the normal direction, in order to carry out the two-stage lock operation in which the close lever 14 is rotated in the forward direction in the future, The operation of setting the lever 14 to the initial position is automatically and continuously performed.
Further, while the close lever 14 is rotated in the opposite direction as described above, the latching pin 165 is moved to the outside of the locus of the latch body 12. Accordingly, it is possible to prevent the rotation of the latch body 12 by the latch pin 165 while the latch body 12 is rotated in the reverse direction and returned to the initial angle. Therefore, the lock releasing step S5 can be performed smoothly while the latch body 12 is rotated in the reverse direction.
The setting step S1-1 and the winding start step S3-1 are performed in the actuator unit 30 according to the embodiment of the present invention while the above- The winding step S3-2, the switching step S4-1, the releasing step S4-2, and the releasing ending step S4-3 are sequentially performed.
The setting step S1-1 means an operating state in which the end switch 53 is set to face the small diameter portion 336 as shown in Fig. The setting step S1-1 is maintained in the actuator unit 30 while the full-open step S1 is held in the latch unit 10. [ At this time, the terminal of the end switch 53 is kept apart from the small-diameter portion 336 and held in the off state.
The winding start step S3-1 refers to an operating state in which the end switch 53 is brought into contact with one side of the large diameter portion 337 as shown in Fig. 27 while the forward rotation of the winding drum 33 is started. When the latch unit 10 completes the solving step S2, the signal of the half lock position 51 is switched and the forward driving of the actuator unit 30 is started. That is, at the completion of the solving step S2 in the latch unit 10, the winding start step S3-1 in the actuator unit 30 proceeds. At this time, the terminal of the end switch 53 is brought into contact with the large-diameter portion 337 to be turned on.
The winding step S3-2 is a step in which the contact portion between the large-diameter portion 337 and the end switch 53 is moved from one side of the large-diameter portion 337 to the other end as shown in Fig. 28 while the forward rotation of the winding drum 33 is maintained. The operating state is gradually shifted to the side. While the forward rotation of the winding drum 33 is maintained in the actuator unit 30 as described above, the latch unit 10 advances to the step S3 of the pooling. At this time, the terminal of the end switch 53 remains in contact with the large-diameter portion 337.
The switching step S4-1 means an operating state in which the rotating direction of the winding drum 33 is reversed as shown in Fig. When the pull-lock step S3 is completed in the latch unit 10, the signal of the pull-lock position 52 is switched and the reverse driving of the actuator unit 30 is started. That is, the switching step S4-1 is performed in the actuator unit 30 upon completion of the step S3 of the pull-lock operation in the latch unit 10. [ At this time, the terminal of the end switch 53 remains in contact with the large-diameter portion 337.
The releasing step S4-2 is a state in which the contact portion between the large-diameter portion 337 and the ending switch 53 contacts the other side of the large-diameter portion 337 while the reverse rotation of the winding drum 33 is maintained, The operating state is gradually shifted to the side. While the reverse rotation of the winding drum 33 is maintained in the actuator unit 30 as described above, the lever returning step S4 proceeds to the latch unit 10. [ At this time, the terminal of the end switch 53 remains in contact with the large-diameter portion 337.
The releasing end step S4-3 means an operating state in which the end switch 53 faces the small diameter portion 336 as shown in Fig. 26 while the reverse rotation of the winding drum 33 is maintained. At this time, the terminal of the end switch 53 is switched to the off state opposite to the small-diameter portion 336, and the reverse drive of the actuator unit 30 is terminated by the signal switch of the end switch 53, 10), the lever returning step S4 is completed. In a state where the release end step S4-3 is completed, the actuator unit 30 is in the same state as the setting step S1-1.
The lock releasing step S5 is an operating state for releasing the restraint of the striker S while the latch body 12 is rotated in the reverse direction in conjunction with the operation of the release motor portion 18 or the safety lever portion 19. [ When the release motor unit 18 is driven or the safety lever unit 19 is pivoted in the forward direction, the pull lever 13 is rotated in the reverse direction to interlock with the pull lock groove unit 124, And is returned to the initial angle. In performing the lock releasing step S5 using the release motor unit 18, the release start step S5-1, the release maintaining step S5-2, and the release releasing step S5-3 are sequentially performed do.
The release start step (S5-1) means an operating state in which the user performs an operation of opening the tailgate to start driving the release motor 181. [ When the user operates the release motor 18 by pressing a button or the like, the release start step (S5-1) proceeds and the lever of the release motor unit 18, as shown in Figs. 31 and 32, (186) is moved to the release lever (15) side.
The release holding step S5-2 means an operating state in which the release motor 18 continues to be driven within a range not exceeding the set time. When the release motor unit 18 continues to be driven, the lever is pushed by the pressing unit 186 so that the release lever 15 is pivoted in the reverse direction as shown in Figs. 33 and 34 and is interlocked with the pivotal movement of the release lever 15 in the reverse direction So that the foil levers 13 rotate together in the reverse direction. The releasing rotation of the release lever 15 and the pull lever 13 is made by the contact between the press lever 156 provided in the release lever 15 and the interlocking contact portion 134 provided in the pull lever 13. [
When the foil lever 13 rotates in the reverse direction, the end of the engaging lever portion 132 is moved into the locus of the full open groove portion 122 while being spaced apart from the pool lock groove portion 124. As the latch lever portion 132 is separated from the pawl groove portion 124, the latch body 12 is rotated in the reverse direction as shown in Figs. 35 and 36 by the restoring force of the elastic member while the restraint of the rotational restraint in the reverse direction is released. The open sensing switch 54 is kept in the off state by being separated from the switch contact portion 127 in the state where the latch body 12 is rotated in the primary or secondary direction in the forward direction, and the latch body 13 is rotated in the reverse direction The switch contact portion 127 provided in the latch body 12 is turned on.
When the release lever 15 is rotated in the opposite direction as described above, the latching pin 165 is completely separated from the locus of the latch body 12. The movement of the latching pin 165 causes the closing lever 14 and the third rotating shaft portion 41 to be held in a fixed position and the guide pin 166 is moved along the release guide portion 155 to the end of the guide lever portion 152 So that the entire connecting lever 16 is rotated in the reverse direction. With the movement of the connecting lever 16 as described above, the latch body 12 can be smoothly rotated in the reverse direction without interfering with the latching pin 165.
The release releasing step S5-3 is an operation state for stopping the operation of the release motor unit 18 when the signal of the open detection switch 54 is switched to the ON state while the release motor unit 18 continues to be driven do. When the release release step S5-3 is started, the drive of the release motor unit 18 is not held for the set time, and the drive of the release motor unit 18 is immediately terminated. That is, the set time in the release holding step (S5-2) means the longest drive time of the release motor unit 18. [
When the release motor unit 18 is stopped, the release lever 15 is rotated in the forward direction as shown in FIGS. 37 and 38 by the restoring force of the spring member, Is returned. At this time, the lever pressing drum 183 for pressing the release lever 15 in the reverse direction is also returned to the initial position while being rotated in the reverse direction by the restoring force of the spring member. In the state where the lock release step S5 is completed as described above, the inside of the latch unit 10 becomes the same state as the full open step S1 shown in Figs. 18 and 19.
Normally, the tailgate of the vehicle is held in a state of receiving an upward pressing force due to the elastic restoring force of a seal member or the like. Therefore, when the state in which the latch body 12 is restrained by the pull lever 13 is released, Is released to the outside of the access groove 126 and the latch body 12 is rotated in the reverse direction as described above. When the load of the tail gate is increased to such an extent as to cancel the upward pressing force due to snow accumulated on the tail gate or the like, only releasing the state in which the latch body 12 is restrained by the foil lever 13, It is not moved upward. In other words, as shown in Figs. 35 and 36, the latch body 12 is not rotated in the reverse direction, the state shown in Figs. 33 and 34 is maintained, and the state shown in Figs. 33 and 34 The release motor 15 is automatically stopped and the foil lever 13 is returned to the initial angle before the lock release step S5 is started . That is, the latch body 12 is maintained in a state in which it is rotated in the primary or secondary direction in the forward direction, and the striker S is also held in a state of being restrained by the latch body 12.
Therefore, when the load of the tail gate is increased to such an extent as to cancel the upward pressing force due to snow or the like accumulated on the tail gate as described above, the user may further increase the upward pressing force by, for example, raising the tail gate upward 35 and 36, the latch body 12 can be rotated in the reverse direction, and at the same time, the striker S can be released to the outside of the entry / For example, if the set time of the release maintaining step S5-2 is set to 1.3 seconds, the driving of the release motor section 18 can be continued for a maximum of 1.3 seconds. While the release maintaining step S5-2 continues, when the tail gate is further moved upward by the user by applying upward pressure to the tail gate, the latch body 12 is rotated in the reverse direction, and the open sensing switch 54 The releasing step S5-3 for terminating the drive of the release motor portion 18 is performed while the latch body 12 is touched. When the signal of the open sensing switch 54 is switched at 0.5 seconds when the striker S is separated from the latch body 12, the release motor unit 18 is not driven for 1.3 seconds, do.
Conventionally, tail gate opening of a vehicle using a motor is performed by driving a motor member provided for opening the tail gate for 0.5 seconds in general. When the set time of the release maintaining step S5-2 is set to 1 to 2 seconds or the like, that is, the driving time necessary for rotating the lever member, as compared with the conventional method of driving the motor member only to the extent necessary for rotating the lever member When the elderly person who is difficult to quickly apply the upward pressing force to the tail gate wants to open the tail gate in bad weather such as snowfall, if the release motor 18 is driven for a longer period of time than the predetermined time, It is possible to mitigate the inconvenience of being raised. That is, the tail gate can be lifted upwards within 1 to 2 seconds instead of 0.5 seconds, so that the convenience of the tail gate opening operation can be further improved.
During the operation of the release motor portion 18, the foil lever 13 is separated from the latch body 12 as described above, so that the tail gate can not be closed. According to the release step S5-3 If the tail gate is opened substantially while the latch body 12 is rotated in the reverse direction without the unconditional release maintaining step S5-2 for 1 to 2 seconds, the drive of the release motor portion 18 is immediately terminated The tail gate can be closed and the multi-stage lock can be performed immediately after the user opens the tail gate, for example, if the user wishes to close the tail gate again within 1 to 2 seconds which is within the set time. For example, when the signal of the open detection switch 54 is switched at a time point of 0.5 seconds, the operation of the release motor unit 18 is immediately terminated and the process proceeds to the full open step S1. Therefore, It is possible to proceed to the deficient stage (S3) quickly while descending downward. Thereby, as compared with the case where the operation of the release motor section 18 is performed for a set time, for example, 1.3 seconds, and then the full open step S1 is performed, the tail gate is closed It can be performed more quickly. That is, in a state in which the tail gate is turned upside, the tail gate can be immediately closed regardless of the set time of the release holding step (S5-2), so that the convenience of the tail gate closing operation can be further improved.
On the other hand, when the safety lever 191 provided on the safety lever portion 19 is rotated in the normal direction, the inner lever portion 194 of the safety lever 191 is pushed in the same manner as when the release motor portion 18 is driven The release lever 15 is rotated in the reverse direction and the fork lever 13 and the latch body 12 are rotated in the reverse direction in conjunction with the reverse rotation of the release lever 15 to release the restraint of the striker S. [ The operation of the release lever 15, the pull lever 13 and the latch body 12 is performed in the same manner as in the case of performing the lock release step S5 by driving the release motor 18, The description will be omitted.
The lock releasing step S5 may be performed after the normal operation of the defective step S2, the pull-lock step S3 and the lever returning step S4 as described above, and the actuator unit 30, the control unit 50, For example, in a state in which the operation has not proceeded to the lever returning step S4 due to an operation error of the lever, for example, in the state of continuing to the decoupling step S2 or in the pooling step S3.
According to the tail gate latch for a vehicle according to the present invention having the above-described configuration, since the release motor portion 18 that is driven by the electric motor and automatically releases the restraint state of the striker S is provided, The tailgate S can be released from the restraint and the tail gate can be opened conveniently. In addition, the safety lever portion 19 for manually releasing the restraint state of the striker S in the event of an abnormality of the electric motor or the electronic component such as the release motor portion 18 due to an accident or a breakdown or in an urgent emergency situation, The restraint of the striker S can be forcibly released to open the tail gate.
While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. I will understand. Accordingly, the technical scope of the present invention should be defined by the following claims.
