JP3738340B2 - Automobile trunk lid closure device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
In the present invention, a striker is provided on one of the trunk lid and the peripheral edge of the trunk opening, and a latch member is provided on the other of the trunk lid and the peripheral edge of the trunk opening. When the striker engages with the latch member, The present invention also relates to a closure device for an automobile trunk lid in which the latch member is pulled in via the striker by power to close the trunk lid.
[0002]
[Prior art]
As a conventional automobile trunk lid closure device, for example, a lock mechanism is arranged on the trunk lid side, a closure device is arranged on the peripheral edge side of the trunk opening, the lock mechanism has a latch member, and the closure device is The striker has a support base, a striker base, and a striker. The striker is supported by the support base so as to be swingable to the standby position and the retracted position via the striker base. When the trunk lid is closed, the striker is raised to the standby position. The latch member is engaged with the striker, the retracting mechanism of the closure device is operated, the striker is lowered from the standby position to the retracted position, the latch is retracted, and the trunk lid is forcibly closed.
[0003]
The direction in which the latch member engages with the striker and the direction in which the striker descends from the standby position to the retracted position are generally set in the same direction.
[0004]
[Problems to be solved by the invention]
However, in such a conventional trunk lid closure device for an automobile, when the direction in which the latch member engages with the striker is inclined with respect to the vertical direction, the striker moves along the inclination. Therefore, when the closure device is mounted on the vehicle body side, the closure device is bulky in the front-rear direction of the vehicle body and the trunk volume is reduced.
[0005]
The present invention has been made paying attention to such a conventional problem, so that the striker is guided by the support base in the vertical direction via the striker base regardless of the direction in which the striker engages the latch member. In addition, the striker engages with the latch member in an inclined and appropriate posture so that the entire closure device is not bulky in the longitudinal direction of the vehicle body, so that a sufficient trunk volume can be secured and the striker is excluded. An object of the present invention is to provide a closure device for a trunk lid of an automobile that can be used in common.
[0006]
[Means for Solving the Problems]
The gist of the present invention for achieving the object lies in the inventions of the following items.
[1] Provided on one of the trunk lid (10) and the peripheral edge (12) of the trunk opening (11), has a striker (45), and has a peripheral edge between the trunk lid (10) and the trunk opening (11). When the striker (45) is engaged with a latch member provided on the other side of the portion (12), the latch member is pulled through the striker (45) by power to close the trunk lid (10). A closure device for an automobile trunk lid (10), comprising a striker base (40) and a support base (20),
The support base (20) supports the striker base (40) so that it can be guided in a substantially vertical direction,
The striker (45) is fixed to the striker base (40),
The striker (45) is supported by the support base (20) through the striker base (40) so as to be guided in a substantially vertical direction, and an engaged portion (48) that engages with the latch member includes: A closure device for an automobile trunk lid (10), wherein the closure device is formed in a direction inclined to engage with a latch member.
[0007]
[2] Provided on one of the trunk lid (10) and the peripheral edge portion (12) of the trunk opening (11), has a striker (45), and has a peripheral edge between the trunk lid (10) and the trunk opening (11). When the striker (45) is engaged with a latch member provided on the other side of the portion (12), the latch member is pulled through the striker (45) by power to close the trunk lid (10). A closure device for an automobile trunk lid (10), comprising a striker base (40) and a support base (20),
The support base (20) is fixed to one of the trunk lid (10) and the peripheral edge (12) of the trunk opening (11),
The striker base (40) is pivotally attached to the support base (20) so as to be swingable about the one end, and the striker base (40) is supported so as to be guided in a substantially vertical direction. And
The striker (45) is fixed to the striker base (40) at a position spaced from one end to the other end.
The striker (45) is supported by the support base (20) through the striker base (40) so as to be guided in a substantially vertical direction, and an engaged portion (48) that engages with the latch member includes: A closure device for an automobile trunk lid (10), wherein the closure device is formed in a direction inclined to engage with a latch member.
[0008]
[3] The support base (20) has a support standing wall (22) for guiding and supporting the striker base (40) in a substantially vertical direction.
The supporting upright wall (22) is disposed on a direction line in which the striker (45) engages with the latch member and in the vicinity of the striker (45) [1. ] Or the closure device for a trunk lid (10) for an automobile according to [2].
[0009]
Next, the operation of the invention will be described.
In one configuration of the present invention, when the trunk lid (10) is closed, the striker (45) is engaged with the latch member in a direction inclined with respect to the vertical direction, and when the striker (45) is engaged with the latch member, The closure device is started, and by power, the striker (45) is guided by the support base (20) in the vertical direction via the striker base (40), the striker (45) pulls the latch member, and the trunk opening (11) The trunk lid (10) is closed against the restoring force of the weather strip provided along the peripheral edge (12).
[0010]
The striker (45) is configured to engage with the latch member in an appropriate posture in a direction in which the striker (45) is engaged with the latch member inclined with respect to the vertical direction. Therefore, the entire closure device is not bulky in the front-rear direction of the vehicle body, and the trunk volume can be increased by the amount not bulky.
[0011]
Further, when the shape of the trunk lid (10) for each vehicle type is different, the engagement direction of the latch member is different, and it is necessary to prepare various strikers (45) having shapes corresponding to the engagement direction of the latch member. However, since the striker (45) is guided by the support base (20) in the vertical direction via the striker base (40), the components other than the striker (45) have a shape corresponding to the engagement direction of the latch member. Therefore, it can be used as a common part among vehicle types, and the cost can be reduced.
[0012]
Further, in another configuration of the present invention, when the trunk lid (10) is closed and the latch member is engaged with the striker (45), the striker base (40) is centered on one end portion by power, and the other end. The part is pulled down. At this time, the striker base (40) moves on the vertical plane. When the striker base (40) swings, the striker (45) fixed at a position spaced from one end to the other end pulls the latch member, and the trunk lid (10) is closed.
[0013]
Regardless of the direction in which the striker (45) engages with the latch member, the striker base (40) and the striker (45) fixed to the striker base (40) come to move on the vertical plane. The entire device is not bulky in the front-rear direction of the vehicle body, and the trunk volume can be increased by the amount not bulky, and the components other than the striker (45) can be shared.
[0014]
Furthermore, in another configuration of the present invention, when the striker (45) is engaged with the latch member, the impact force applied to the striker (45) is caused by the striker (45) to be latched via the striker base (40). It hangs on the supporting upright wall (22) arranged on the direction line that engages.
[0015]
Since the support vertical wall (22) can reliably receive the impact force applied to the striker (45), the striker (45), the striker base (40), the support vertical wall (22) and the like are not deformed or damaged. The components such as the striker (45), the striker base (40) and the support wall (22) need not have high rigidity, and there is no need to increase the size of the component or increase the plate thickness. The whole can be made small and light.
[0016]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
1 to 9 show an embodiment of the present invention.
As shown in FIGS. 1 to 3, 8, and 9, a lock mechanism 15 is provided at the center of the rear edge of the trunk lid 10. The lock mechanism 15 includes a lock base 16 having a striker entry groove 16a formed in the lower center thereof, a latch member (not shown) that is swingably supported by the lock base 16 and is engaged with and disengaged from the striker 45. The base 16 includes a locking plate (not shown) supported so as to be swingable between a restraining position (position where the latch member is restrained) and a release position (position where the latch member is released).
[0017]
A weather strip (not shown) is attached to the periphery of the trunk opening 11, and a closure device 20 a is attached to the periphery 12 of the trunk opening 11 corresponding to the lock mechanism 15.
[0018]
The closure device 20 a is provided with a support base 20 fixed to the inner panel of the peripheral edge 12 of the trunk opening 11 and a striker base 40.
[0019]
As shown in FIG. 1, FIG. 3, FIG. 7, and FIG. 8, which shows an extracted configuration of the striker base 40, the support base 20 includes a support vertical wall 22 that forms a substantially vertical surface, and a step portion. 23, and an upstanding wall 24 for mounting, which is also formed on the supporting upright wall 22 through the stepped portion 23 and has a substantially vertical surface. A through hole 25 is formed in the stepped portion 23 so as to pass from the front side to the rear side of the support base 20.
[0020]
A pivot pin 21 is installed on the base member 20, and one end portion of the striker base 40 is raised by the pivot pin 21, and the other end portion is pulled up. 9 is pivotally attached to a retracting end position (bottom dead center) shown in FIG.
[0021]
A striker 45 is integrally formed at an intermediate position spaced from one end of the striker base 40 toward the other end. The striker 45 is a flat plate-shaped bent portion 46 formed by bending the striker base 40 and an upper edge portion of the bent portion 46, and is engaged by forming an engagement hole 47 in the bent portion 46. Part 48.
[0022]
The striker base 40 is slidably supported on the front surface of the support standing wall 22 from one end thereof to an intermediate position.
[0023]
As shown in FIG. 5, the engaged portion 48 of the striker base 40 advances and retreats into the striker entry groove 16 a when the striker base 40 swings between the drawing start position and the drawing end position. The trapezoidal cross-sectional shape is formed with the front end surface on the side advanced into the groove 16a for entering the striker as the upper base.
[0024]
A retracting mechanism 50 that is a drive mechanism for retracting the latch member 17 via the striker 45 is attached to the other end of the support base 20. The other end of the striker base 40 is extended along the rear surface side of the support base 20 through the through hole 25. A cam groove 41 is formed at the other end of the striker base 40.
[0025]
The retracting mechanism 50 has a cam groove 41 of the striker base 40 and an output arm 55 rotatably supported at the other end of the support base 20, and a cam follower 56 is pivotally attached to the peripheral portion of the output arm 55. The cam follower 56 is movably fitted in the cam groove 41.
[0026]
An input shaft portion 57 is implanted in the center portion of the output arm 55. A key portion (not shown) is formed at one end of the input shaft portion 57, and the key portion passes through the support base 20 and protrudes toward the power portion 70 fixed to the front side of the support base 20.
[0027]
A drive motor and a speed reducer (both not shown) are accommodated in the housing 71 of the power unit 70. A stop switch 80 is mounted on the other end of the support base 20, and a switch piece 81 of the stop switch 80 is slidably in contact with the periphery of the output arm 55. The peripheral edge of the output arm 55 includes a substantially semicircular portion 55a having a concentric rotation center, and a detected portion 55b and a detected portion 55c respectively formed at both ends thereof. The detected portion 55b is a detected portion for the pull-in start position, and the detected portion 55c is a detected portion for the pull-in end position.
[0028]
As shown in FIGS. 1, 2, 6, and 7, a lever 85 is swingably supported on the support base 20 by a pivot 28. The lever 85 is formed in a substantially L-shaped cross section and has a detection piece 86. The detection piece 86 is in the fully open lever state shown in FIG. 6 to the retraction start position where the striker 45 engages the latch member (the lever state when the top dead center shown in FIG. 6B is engaged: detected by the lock base 16 It swings from the state in contact with the piece 86) to the pull-in end position (the lever state at the time of bottom dead center engagement shown in FIG. 6A: the state in which the lock base 16 has pushed the detection piece). The lever 85 is urged by a winding spring 87 in the clockwise direction in FIG. 6, that is, in the direction of swinging to the lever state when fully opened.
[0029]
As shown in FIG. 6C, the lever state when the switch is switched is set in an intermediate state between the fully open lever state and the top dead center engaged lever state. In addition, a lid state detector 88 is provided to detect a lever state (lid open / closed state) when the switch is switched.
[0030]
FIG. 5 shows a circuit diagram of the closure device 20a. The drive motor of the power unit 70 is connected to the power source via the contact a of the relay R. The coil of the relay R is connected to the output end of the control unit, and a lock switch 90, a stop switch 80, and a lid state detection unit 88 for detecting the state of the locking plate (restraint position or release position) are provided at each input end of the control unit. It is connected to the.
[0031]
Even when the control plate is in the restraining position where the locking plate restrains the latch member and the stop switch 80 is turned on (circuit closed), the detection piece 86 of the lever 85 is moved from the lever state when the switch is switched. If the lid state detection unit 88 is not turned on by swinging toward the fully open lever state, the relay R coil is not energized, and the relay R contact a is kept off (circuit open). The drive motor of the unit 70 is configured to be unstartable.
[0032]
Next, the operation will be described.
In the state where the trunk lid 10 is open, as shown in FIG. 8, the striker base 40 is lifted and is in the retracting start position. At this time, the switch piece 81 of the stop switch 80 protrudes and is in contact with the detected portion 55b. At this time, the locking plate is in the release position and the lock switch 90 is off. As shown in FIG. 6, the detection piece 86 of the lever 85 swings from the lever state when the switch is switched to the lever state when the switch is fully opened, and the lid state detection unit 88 is turned on.
[0033]
As the trunk lid 10 is closed, the lock mechanism 15 eventually approaches the striker 45 from obliquely forward, and the engaged portion 48 that is the tip of the bent portion 46 of the striker 45 is a groove for entering the striker of the lock base 16. It advances to 16a and engages with a latch member. At this time, the impact force from obliquely forward received by the engaged portion 48 of the striker 45 is a support that supports the base end portion of the bent portion 46 of the striker 45 of the striker plate 40 and the vicinity thereof so as to be slidable from the rear. It is reliably received by the standing wall 22 for supporting the base 20.
[0034]
Further, the engaged portion 48 that is the distal end portion of the bent portion 46 of the striker 45 and the support standing wall 22 that slidably supports the proximal end portion of the bent portion 46 of the striker 45 are close to each other. Therefore, the moment generated around the base end portion of the bent portion 46 due to the engaged portion 48 that receives an impact force does not increase, and the striker 45, the striker base 40, and the support standing wall 22 are Even if each rigidity is not increased, it can sufficiently withstand the generated moment.
[0035]
When the engaged portion 48 of the striker 45 engages with the latch member, the locking plate swings to the restraining position, engages with the latch member, and is restrained while the striker 45 is engaged with the latch member. 90 turns on.
[0036]
When the lid state detection unit 88 is turned on and the lock switch 90 is turned on, the drive motor is started, the output arm 55 is rotated via the speed reduction mechanism, and the retracting mechanism 50 is activated.
[0037]
When the output arm 55 rotates, the cam follower 56 of the output arm 55 moves in the groove of the cam groove 41 of the striker base 40. Accordingly, the other end portion of the striker base 40 is pulled down with the one end portion of the striker base 40 as the center. At this time, the striker 45 is guided by the support standing wall 22 of the support base 20 in the vertical direction via the striker base 40.
[0038]
Regardless of the direction in which the striker 45 engages with the latch member, that is, obliquely forward with respect to the vertical direction, the striker 45 is guided through the striker base 40 by the support standing wall 22 formed on the vertical surface. Since the striker 45 and the striker base 40 are guided and moved along the vertical plane, the entire closure device 20a is not bulky in the front-rear direction of the vehicle body, and the trunk volume can be increased by the amount not bulky.
[0039]
Further, when the other end portion of the striker base 40 is pulled down with the one end portion of the striker base 40 as the center, the switch piece 81 of the stop switch 80 slides on the substantially semicircular circumferential portion 55 a of the output arm 55.
[0040]
4 (a) to 4 (c) show the positional relationship between the engaged portion 48 of the striker 45 and the striker entry groove 16a from the same viewpoint as in FIG. 8, and as shown in FIG. The engaged portion 48 of the 40 striker 45 is swung slightly to the left side from the state in which the tip end portion swings to the right side (upper state) in the striker entry groove 16a of the lock base 16. Tilt to state (lower state). As shown by the solid line in FIG. 4, the engaged portion 48 of the striker 45 is formed in a trapezoidal cross-sectional shape whose tip is narrower than the base end, so that the engaged portion 48 of the striker 45 is inclined. However, the engaged portion 48 of the striker 45 does not interfere with the groove side edge of the groove 16a for entering the striker. Accordingly, as indicated by an imaginary line in FIG. 4, the width of the groove 16 a for entering the striker may be narrower than the engaged portion 48 of the conventional striker 45 formed in a rectangular cross-sectional shape.
[0041]
Further, as shown in FIG. 1, the striker base 40 is assembled based on a reference position (reference hole), but as shown in FIG. Assembling in a left-down state (state in which the other end of the striker base 40 is lowered with respect to the reference position), or as shown in FIG. (The other end of the striker base 40 is raised with respect to the reference position).
[0042]
Thus, even when an assembly tolerance occurs, the engaged portion 48 of the striker 45 is formed in a trapezoidal cross-sectional shape whose tip is narrower than the base end. Even if the tip of the joint portion 48 is inclined, the engaged portion 48 of the striker 45 does not interfere with the groove side edge of the striker entry groove 16a.
[0043]
Further, when the output arm 55 rotates and the cam follower 56 moves in the groove of the cam groove 41 of the striker base 40, the striker base 40 swings, the striker 45 retracts the latch member, and the trunk lid 10 is closed. Eventually, it is detected that the switch piece 81 of the stop switch 80 slides on the detected portion 55c of the output arm 55, the switch piece 81 protrudes, and the striker base 40 swings to the retracting end position. The motor stops and back and forth, the trunk opening 11 is completely closed.
[0044]
The pull-in mechanism 50 pulls in the trunk lid 10 against the case where the restoring force of the weather strip (not shown) provided along the peripheral edge 12 of the trunk opening 11 is large, and bends the weather strip. Thus, the trunk lid 10 can be completely closed.
[0045]
When the striker base 40 is swung from the retract start position shown in FIG. 8 to the retract end position shown in FIG. 9 and the trunk lid 10 is completely closed, an open lever (not shown) is opened. (Omitted) may be operated. As a result, the open lever comes into contact with the locking plate, the locking plate swings to the release position, the lock switch 90 is turned off, the latch member is detached from the striker 45, and the trunk lid 10 can be opened.
[0046]
When the lock switch 90 is turned off, the drive motor of the power unit 70 starts and the output arm 55 rotates. When the output arm 55 rotates, the cam follower 56 moves in the cam groove 41, and the striker base 40 swings from the drawing end position shown in FIG. 9 toward the drawing start position shown in FIG.
[0047]
Further, when the output arm 55 rotates, the cam follower 56 moves in the cam groove 41, the switch piece 81 of the stop switch 80 slides on the substantially semicircular portion 55a of the output arm 55, and the striker base 40 is moved to the original position. The drive motor stops when it detects return to the retract start position. Further, the detection piece 86 of the lever 85 swings to the lever state when the top dead center is engaged as shown in FIG.
[0048]
When the trunk lid 10 is opened and the lock base 16 is raised, the detection piece 86 of the lever 85 is swung clockwise in FIG. 6 by the urging force of the winding spring 87, and the lid is in the lever state when the switch is switched. The state detection unit 88 is turned on and further swung clockwise, so that the lever is in a fully opened state.
[0049]
When the vehicle body is frozen and the trunk lid 10 is opened, the peripheral edge of the trunk lid 10 is not separated from the weather strip, the lock base 16 is not sufficiently raised, and the detection piece 86 of the lever 85 is dead. Even if the locking plate is swung from the release position to the restraining position and the lock switch 90 is turned on in the vicinity of the lever state at the point engagement, the detection piece 86 does not enter the lever state when the switch is switched. Therefore, the lid state detection unit 88 is not turned on, the drive motor of the power unit 70 is not started, and the forced closing operation is prevented again.
[0050]
In the embodiment, the striker 45 is formed integrally with the striker base 40. However, the striker 45 may be formed separately and fixed to the striker base 40.
[0051]
【The invention's effect】
As described above, according to one configuration of the present invention, the striker is configured to engage with the latch member in an appropriate posture in a direction inclined with respect to the vertical direction. Since the entire closure device is not bulky in the front-rear direction of the vehicle body, the trunk volume can be increased by the amount that is not bulky, and the components excluding the striker are the components of the latch member. It is not necessary to make the shape corresponding to the engagement direction, and it can be used as a common part between vehicle types, and the cost can be reduced.
[0052]
According to another configuration of the present invention, the striker base and the striker fixed to the striker base move on the vertical plane regardless of the direction in which the striker engages the latch member. The entire device is not bulky in the front-rear direction of the vehicle body, and the trunk volume can be increased by the amount not bulky, and the components other than the striker can be shared.
[0053]
Further, according to another configuration of the present invention, the impact force applied to the striker is reliably received by the support standing wall disposed on the direction line in which the striker engages the latch member via the striker base. In addition, there is no deformation or breakage of the striker base and the support vertical wall, and the rigidity of the components such as the striker, the striker base and the support vertical wall is not high, and the entire apparatus can be reduced in size and weight.
[Brief description of the drawings]
FIG. 1 is a front view of a closure device showing an embodiment of the present invention.
FIG. 2 is a perspective view of a closure device in an attached state, showing an embodiment of the present invention.
FIG. 3 is a side view of a closure device showing an embodiment of the present invention.
FIG. 4 is an operation state explanatory diagram of a striker showing an embodiment of the present invention.
FIG. 5 is a circuit diagram of a closure device showing an embodiment of the present invention.
6 is a view taken along arrow VI in FIG. 3;
7 is a view taken along arrow VII in FIG. 6;
FIG. 8 is an operation explanatory view of a closure device showing an embodiment of the present invention.
FIG. 9 is an operation explanatory view of a closure device showing an embodiment of the present invention.
[Explanation of symbols]
R ... Relay
10 ... Trunk lid
11 ... Trunk opening
12 ... Rim
15 ... Lock mechanism
16 ... Rock base
16a ... Strike groove
20 ... Support base
20a ... Closure device
21 ... Pivot pin
22 ... Standing wall for support
23 ... Step part
24 ... Standing wall for installation
25 ... through hole
28 ... Axis
40 ... striker base
41 ... Cam groove
45 ... striker
46 ... Bending part
47 ... engaging hole
48 ... engaged portion
50 ... Retraction mechanism
55 ... Output arm
55a: Approximately semicircular circumference
55b ... detected part
55c ... detected part
56 ... Camphora
70 ... Power section
71 ... Housing
80 ... Stop switch
81 ... Switch piece
85 ... Lever
86: Detection piece
87 ... Wound spring
88 ... Lid state detector
90 ... Lock switch

Claims (3)

It is provided on one of the trunk lid and the peripheral edge of the trunk opening, has a striker, and when the striker engages with a latch member provided on the other of the trunk lid and the peripheral edge of the trunk opening, A closure device for an automobile trunk lid in which the latch member is pulled in via the striker to close the trunk lid, and includes a striker base and a support base.
The support base supports the striker base so that it can be guided in a substantially vertical direction,
The striker is fixed to the striker base,
The striker is supported by the support base through the striker base so that it can be guided in a substantially vertical direction, and an engaged portion that engages with the latch member is inclined in a direction that engages with the latch member. A closure device for an automobile trunk lid, which is formed . It is provided on one of the trunk lid and the peripheral edge of the trunk opening, has a striker, and when the striker engages with a latch member provided on the other of the trunk lid and the peripheral edge of the trunk opening, A closure device for an automobile trunk lid in which the latch member is pulled in via the striker to close the trunk lid, and includes a striker base and a support base.
The support base is fixed to one of the trunk lid and a peripheral edge of the trunk opening;
The striker base is pivotally attached to the support base so as to be swingable about the one end, and the striker base is supported so as to be guided in a substantially vertical direction.
The striker base is fixed to the striker base at a position spaced from one end to the other end,
The striker is supported by the support base through the striker base so that it can be guided in a substantially vertical direction, and an engaged portion that engages with the latch member is inclined in a direction that engages with the latch member. A closure device for an automobile trunk lid, which is formed . The support base has a support standing wall for guiding and supporting the striker base in a substantially vertical direction,
The trunk for an automobile according to claim 1, wherein the standing wall for support is arranged on a direction line in which the striker engages with the latch member and in a position close to the striker. Lid closure device.

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