JP3708721B2 - Electric closure device for automotive opening and closing body - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an electric closing device for an automobile opening / closing body in which a driving mechanism portion by a driving force of a motor is operated to forcibly close a locking device to a fully closed state of the opening / closing body.
[0002]
[Prior art]
There is a conventional electric closing device for an opening / closing body, for example, as disclosed in JP-A-10-102865. This device is disposed at the lower end of an opening / closing body pivotally supported at the upper end of a vehicle body by a support shaft (not shown). The latch mechanism (30) is supported by the locking device so as to be pivotable between a half latch position that engages with the striker and a full latch position that completely engages with the striker when the door is completely closed, and a drive mechanism section that is operated by the drive force from the motor ( 70, 91) and the pushing portion (95) as the input flange pushes the pushed portion (60) as the push lever of the latch (30) to forcibly move the latch from the half latch position to the full latch position. It is designed to rotate.
[0003]
This locking device has a housing (21) that is a lock body that houses a latch (30) and a locking plate (40) that project outward from the lower end of the opening / closing body and are pivotally supported inside. On the upper surface of the housing (21), a bracket having an L-shaped cross section is provided. The bracket includes an attachment portion for attachment to the upper surface of the housing and an upright wall portion bent upward. The standing wall portion is provided with an open lever (85) that is a latch releasing means for controlling the locking device including the drive mechanism portion of the electric closing device, a locking / unlocking lever (86) that is a locking / unlocking means, and a key lever (89). It has been.
[0004]
In addition, the direction of the shaft that supports the latch of the locking device is directed toward the center of the support shaft, which is the center of rotation of the opening / closing body, so that the latch properly meshes with the striker (17) provided on the vehicle body. This is because it is necessary to rotate and engage with the striker at the front end of the opening / closing body where the latch rotates. For this reason, in the opening / closing body in which the position of the support shaft differs depending on the design or the like, the angles of the axes of the latches of the lock device are different.
[0005]
[Problems to be solved by the invention]
Since the electric closing device of the above-described opening and closing body for an automobile is provided with a drive mechanism portion of the electric closing device, an open lever of the locking device, a locking / unlocking lever, and a key lever on the standing wall portion of the bracket attached to the locking device, If this electric closing device is used for an opening / closing body with a different position of the support shaft, it becomes a combination with a locking device with a different shaft angle of the latch, and the position of the pushing portion of the drive mechanism and the pushed portion of the latch There is a possibility that the relationship is shifted and the driving force from the driving mechanism cannot be properly transmitted to the latch. Therefore, every time the shaft angle is different, the drive mechanism of the electric closure device, the open lever of the lock device, the locking / unlocking lever, and the key lever are set so that the pushing portion of the driving mechanism and the pushed portion of the latch are aligned. There is a need to propose a dedicated bracket provided with a high manufacturing cost and there is a need for improvement.
[0006]
The present invention has been made in view of the problems of the conventional techniques as described above, and it is an object of the present invention to make it possible to unitize an electric closing device by preparing only a small part as a dedicated part, thereby reducing costs. .
[0007]
[Means for Solving the Problems]
The invention according to claim 1 is provided at a lower end portion of an opening / closing body pivotably attached to a rear end upper portion of a vehicle body by a support shaft, and when a latch of a lock device is engaged with a striker provided on the vehicle body, The pushing part of the drive mechanism that operates with the driving force of the latch pushes the pushed part of the latch so that it is completely engaged with the striker and forcibly moved to be locked to the locking plate. An electric closing device for an opening / closing body. The locking device has a housing that houses a latch and a locking plate that project outward from the lower end of the opening / closing body and are pivotally supported inside. On the upper surface of the housing, an L-shaped bracket having an attachment portion for attaching to the upper surface of the housing and an upright wall portion bent upward is disposed. A base plate is attached to the standing wall portion by fixing means. The base plate is provided with a drive mechanism, a latch releasing means and a locking / unlocking means for the locking device.
[0008]
According to the invention described in claim 1, since the bracket having an L-shaped cross section is interposed between the housing and the base plate, when this electric closing device is adopted for another opening / closing body having a different position of the support shaft A bracket, which is a relatively small and simple part that can be bent into an L shape, may be manufactured by setting an angle at which the pushing portion of the drive mechanism portion and the pushed portion of the latch are aligned with each other. . At this time, the base plate provided with the drive mechanism section, the latch releasing means of the locking device, and the locking / unlocking means does not need any adjustment, so it can be used as a unit as it is, and the cost can be reduced due to the mass production effect.
[0009]
According to the second aspect of the present invention, the base plate is fixed to the standing wall portion of the bracket by the pivot that pivotally supports the sector gear constituting the drive mechanism.
[0010]
According to the second aspect of the present invention, since the base plate is fixed to the standing wall portion of the bracket by the pivot that pivotally supports the sector gear, there is no need for a separate fixing means and the number of parts is reduced.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
FIGS. 1-8 shows one Embodiment of the drive mechanism of the opening / closing body electric closing device of this invention, FIGS. 9-12 shows the operation | movement aspect of each part. As shown in FIGS. 1 to 8, particularly FIG. 3, the electric closing device for the opening / closing body is provided at the lower end portion of the back door B which is an opening / closing body pivotably attached to the upper rear end portion of the vehicle body A of the automobile. It is incorporated in the locking device C provided.
[0012]
The locking device C includes a latch 2 and a locking plate 5 housed in a housing 1 fixed to the lower end of the back door B. The latch 2 is fixed to a shaft 3 pivotally supported by the housing 1, an engagement groove 2 a that can be engaged with and disengaged from a striker 4 provided in a vehicle body A of the automobile, and two step portions that can be engaged with the locking plate 5. 2b and 2c. The locking plate 5 is pivotally supported by the housing 1 with a shaft 6, and has a claw portion 5 a that can be engaged with and disengaged from the step portions 2 b and 2 c of the latch 2, and a contact portion 5 b that is bent upward. In FIG. 6, the latch 2 is always urged by a spring (not shown) in the counterclockwise direction and the locking plate 5 in the clockwise direction.
[0013]
As shown in FIGS. 2 and 5, a pivot lever 7 as a driven part is fixed to the upper end portion of the shaft 3 of the latch 2, and the latch 2 and the pivot lever 7 rotate integrally. It is supposed to be. The rotating lever 7 has a distal end portion 7c extending rearward from the substantially disc-shaped base portion 7a via the neck portion 7b. The distal end portion 7c is bent with respect to the base portion 7a so as to be substantially parallel to a pivot 15a of an arm 15b described later. Further, the left side edge of the distal end portion 7c forms a contact edge 7d having a substantially arc shape in plan view with which a pushing portion 17a of a connect lever 17 described later contacts.
[0014]
When the back door B is open, the latch 2 and the pivot lever 7 are located at an open position separated from the striker 4, and when the back door B is closed to a so-called half-door state, the striker 2 enters the engagement groove 2 a. 4 is engaged, and the claw portion 5a of the locking plate 5 is engaged with the stepped portion 2b so that it is located at the half latch position where the rotation in the open position direction is prevented. The striker 4 is completely engaged with the groove 2a and the claw portion 5a of the locking plate 5 is engaged with the step portion 2c so that the rotation in the open position direction is prevented. It is supposed to be located.
[0015]
The housing 1 is provided with an L-shaped bracket 21 having a mounting portion 21a for mounting on the upper surface 1a of the housing and an upright wall portion 21b bent upward. It is attached by 21C. The base plate 8 is provided with a control mechanism D of the locking device C. In the present embodiment, the means for fixing the base plate 8 to the standing wall portion 21b is burring caulking, but spot welding, rivet caulking, and further screwing may be used.
[0016]
Since the bracket 21 having an L-shaped cross section is interposed between the housing 1 and the base plate 8, when this electric closing device is used for another opening / closing body having a different position of the support shaft, it is bent into an L-shape. The bracket 21, which is only a relatively small and simple part, has an L-shape so that the pushing portion 17 a of the connect lever 17 and the abutting edge 7 d of the rotating lever 7 that is a pushed portion of the latch are aligned. The angle of the bent portion may be set. By doing so, the manufacturing cost is low. Further, the member provided on the base plate 8 does not need to be adjusted at all, and when this electric closing device is adopted for another opening / closing body having a different position of the support shaft B1, it can be used as a unit as it is, and mass production is possible. Cost reduction due to the effect.
[0017]
The control mechanism part D is a motor 9 that can be rotated forward and backward, which is an electric drive device, a motor-type actuator 10 for locking and unlocking operation, and a shaft 11a that is pivotally supported by the base plate 8, and a drive lever of the actuator 10 10a, a locking / unlocking lever 11 which is a locking / unlocking means movable between a locking position and an unlocking position, a sub-lever 12 slidably supported by a support portion 11b of the locking / unlocking lever 11, and the shaft described above An open lever 13 which is a latch releasing means pivotally supported by the base plate 8 with 11a and connected to a latch releasing operation means (not shown) of the back door B, and a key cylinder (not shown) provided on the back door B. The bracket includes a key lever 14 that is a connected locking / unlocking means and a pivot 15a that is perpendicular to the axis 3 of the latch 2 or forms a required inclination angle. A sector gear 15, which is an operating member that is pivotally supported by the base plate 8 through the gear 21 and that is engaged with a pinion 9 a of a reduction gear that is connected to the motor 9 by a rack-like gear portion 15 c; Thus, an arm 15b extending downward from the pivot 15a and a connecting lever 17 coupled to the lower end of the arm 15b with a coupling shaft 16 parallel to the pivot 15a of the arm 15b are provided. Here, the motor 9, the pinion 9 a, the sector gear 15, and the connect lever 17 provided on the base plate 8 constitute a drive mechanism E within the control mechanism D. The pivot 15a of the sector gear 15 also serves as a fixing means for fixing the base plate 8 and the bracket 21. Since no separate fixing means is required, the number of parts is reduced.
[0018]
The motor 9, the key lever 14, the sector gear 15 and the arm 15b as a part thereof, and the connect lever 17 are disposed on the front side of the base plate 8, and the other actuator 10, the locking / unlocking lever 11, The sub lever 12, the open lever 13 and the like are disposed on the rear surface side of the base plate 8.
[0019]
The open lever 13 has a second arm portion 13c having one end of the sub lever 12 rotatably connected to the lower end portion of the first arm portion 13a extending downward with a shaft 13b and extending in the direction of the connect lever 17. Then, the latch release operation means such as the door handle is rotated counterclockwise from the position shown in FIG. 9 to the latch release position.
[0020]
When the back door B is closed and the locking / unlocking lever 11 is in the unlocking position shown in FIG. 4, the sub lever 12 linearly moves to the left from the position shown in FIG. When the pushing portion 12a formed at the other end contacts the contact portion 5b of the locking plate 5, the locking plate 5 is released and the engagement from the latch 2 is released, so that the back door B is opened. Enable.
[0021]
The motor 9 is closed from the state in which the back door B is opened, and the latch 2 reaches the half latch position, and when the half latch detection switch (not shown) detects this, the latch 2 rotates forward, and the latch 2 further moves to the full latch position. When this is reached, a full latch detection switch (not shown) detects that fact and reverse rotation is controlled.
[0022]
The sector gear 15 and its arm 15b are normally in the non-operating positions shown in FIGS. 2, 9, 10, and 12, and are rotated counterclockwise in FIG. When the operating position shown in FIG. 11 is reached, thereby the latch 2 reaches the full latching position and the motor 9 is reversed, the motor 9 is rotated back to the original non-operating position and stops at that position.
[0023]
The connecting lever 17 is configured such that the pushing portion 17a formed at the right end abuts against the abutting edge 7d of the turning lever 7, and the turning lever 7 is moved by turning the arm 15b from the non-operating position to the operating position. The engagement position shown in FIG. 10 and FIG. 11 that can be pushed together with the latch 2 from the half latch position to the full latch position, and the pushing portion 17a from the contact edge 7d of the turning lever 7 to the plate of the tip portion 7b of the turning lever 7 It can move to the release position shown in FIG. 9 and FIG. 12, which is separated in a direction substantially perpendicular to the surface, and is normally urged toward the engagement position by the urging force of the spring 18 as the urging means. When the latch 2 is within the range from the open position to the position just before the half latch position, the pushing portion 17a or the lower edge comes into contact with the upper surface of the distal end portion 7b of the rotating lever 7 at a substantially right angle. Prevents movement in the direction of the matching position It has become as to be.
[0024]
The upper edge of the right end portion of the connect lever 17 extends upward and rightward and faces downward. The front shape is substantially downward U-shaped, and is provided at the rear of the middle portion of the tip portion facing downward. A stepped portion 17b that is bent in a bowl shape is connected to a bent piece 17c that extends through a substantially square opening 19 formed in the base plate 8 to the rear of the base plate 8.
[0025]
When the lower edge portion of the second arm portion 13c of the open lever 13 is engaged below the step portion 17b of the bent piece 17c and the open lever 13 is rotated to the latch release position, the second arm The bent piece 17c is flipped up by the portion 13c, and the connect lever 17 is rotated to the release position against the urging force of the spring 18.
[0026]
Further, since the bent piece 17c of the connect lever 17 is engaged with the open lever 13 through the opening 19 of the base plate 8, the connect lever 17 and the open lever 13 are hardly separated from each other, and the connect lever 17 is opened. Guided by the edge of the lever 13 or the opening 19, the connect lever 17 can move smoothly and reliably.
[0027]
Next, the operation of this embodiment will be described mainly with reference to FIGS.
[0028]
At this time, as shown in FIG. 9, the sector gear 15 is in the non-operating position. Further, the connecting lever 17 is held at the release position, with the pushing portion 17a riding on the upper surface of the distal end portion 7b of the rotating lever 7 and being prevented from moving in the engaging position direction.
[0029]
From this state, when the back door B is moved in the closing direction, the striker 4 enters the engagement groove 2 a of the latch 2, and the latch 2 is rotated to a position just before the half latch position, it rotates together with the latch 2. The contact edge 7d of the rotating lever 7 that passes through passes directly below the pushing portion 17a of the connect lever 17, so that the connect lever 17 is moved to the release position by the urging force of the spring 18 as shown in FIG. The pushing portion 17 a of the connect lever 17 is positioned within the turning locus of the contact edge 7 d of the turning lever 7.
[0030]
Thereafter, when the latch 2 is rotated to the half latch position, the half latch detection switch is actuated and the motor 9 is rotated forward, whereby the sector gear 15 and its arm 15b are moved from the non-actuated position to the actuated position. 10 is rotated counterclockwise in FIG.
[0031]
Accordingly, the connect lever 17 is moved almost linearly to the right as shown in FIG. 11 from the state shown in FIG. 10, and the abutting edge 7d of the rotating lever 7 is moved by the pushing portion 17a. To forcibly rotate the rotation lever 7 and the latch 2 from the half latch position to the full latch position, thereby closing the back door B from the half door state to the fully closed state.
[0032]
When the latch 2 is rotated to the full latch position, the claw portion 5a of the locking plate 5 is engaged with the step portion 2c of the latch 2, the full latch detection switch is activated, the motor 9 is reversed, and the sector gear 15 Is returned to the original inoperative position shown in FIG. Along with this, the connecting lever 17 is returned to the position shown in FIG. 12 similar to FIG.
[0033]
【The invention's effect】
According to the invention described in claim 1, since the bracket having an L-shaped cross section is interposed between the housing and the base plate, when this electric closing device is adopted for another opening / closing body having a different position of the support shaft A bracket, which is a relatively small and simple part that can be bent into an L shape, may be manufactured by setting an angle at which the pushing portion of the drive mechanism portion and the pushed portion of the latch are aligned with each other. . At this time, the base plate provided with the latch mechanism and the locking / unlocking means of the drive mechanism and the locking device can be used as a unit without any adjustment, and the cost can be reduced due to the mass production effect.
[0034]
According to the second aspect of the present invention, since the base plate is fixed to the standing wall portion of the bracket by the pivot that pivotally supports the sector gear, there is no need for a separate fixing means and the number of parts is reduced.
[Brief description of the drawings]
FIG. 1 is a perspective view showing an automobile in which an opening / closing body electric closing device according to an embodiment of the present invention is mounted on a back door.
FIG. 2 is a front view showing a state in which a motor of the opening / closing body electric closing device is removed.
FIG. 3 is a side view of the motor mounted in the same manner.
FIG. 4 is also a rear view.
FIG. 5 is a view as seen from an arrow V in FIG. 3;
6 is a cross-sectional view taken along line VI-VI in FIG.
7 is a cross-sectional view taken along line VII-VII in FIG.
8 is a cross-sectional view taken along line VIII-VIII in FIG.
FIG. 9 is a front view of the main part of the control mechanism in the door open state.
FIG. 10 is a front view of a main part of the control mechanism section showing a first operating state.
FIG. 11 is a front view of the main part of the control mechanism section showing a second operation state.
FIG. 12 is a front view of the main part of the control mechanism showing the third operating state.
[Explanation of symbols]
A Body B Back door (opening / closing body)
B1 Support shaft C Locking device D Control mechanism E Drive mechanism 1 Housing 2 Latch 3 Axis 4 Striker 5 Locking plate 7 Rotating lever (Pushing part)
8 Base plate 9 Motor 11 Locking / unlocking lever (Locking / unlocking means)
13 Open lever (Latch release means)
14 Key lever (locking and unlocking means)
15 Sector gear 15a Pivot (fixing means)
17 Connect lever 17a Pushing portion 21 Bracket 21a Mounting portion 21b Standing wall portion 21c Burring caulking (adhering means)

Claims (2)

A drive mechanism that is provided at the lower end of an opening / closing body pivotally attached to the rear end upper part of the vehicle body so as to be opened / closed by a support shaft, and that operates by the driving force of the motor when the latch of the lock device is engaged with the striker provided on the vehicle body The electric closing device for an automobile opening / closing body in which the pushing portion of the portion pushes the pushed portion of the latch so as to be completely engaged with the striker and forcibly moved so as to be locked to the locking plate In
The locking device has a housing that houses a latch and a locking plate that project outward from the lower end of the opening and closing member and are pivotally supported inside.
On the upper surface of the housing, a bracket having an L-shaped cross section, which includes an attachment portion for attaching to the upper surface of the housing and an upright wall portion bent upward, is disposed.
A base plate is attached to the standing wall portion by fixing means,
An electric closing device for an opening / closing body for an automobile, wherein the base plate is provided with a drive mechanism, a latch releasing means for a locking device, and a locking / unlocking means. An electric closing device for an automobile opening and closing body according to claim 1,
An electric closing device for an automobile opening and closing body, wherein a base plate is fixed to an upright wall portion of a bracket by a pivot for pivotally supporting a sector gear constituting a drive mechanism.

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