JP5237613B2 - Door lock actuator - Google Patents

Description

  The present invention relates to an actuator that electrically locks and unlocks a door lock device.

In the conventional door lock device actuator, in order to swing the locking lever to the locked position and the unlocked position, an operating lever is attached to the locking lever, and the operating lever is connected to a rotating member that is rotated by power. That is, as shown in FIGS. 5 and 6, the rotating member 60 is provided with a cam protrusion 61 having a cam protrusion 61 a, and a guide hole 71 through which the rotating shaft of the rotating member 60 is inserted in the operating lever 70 interlocked therewith. A cam recess 72 into which the cam protrusion 61 is inserted is provided, a stopper wall 72a that restricts the rotation of the cam protrusion 61 in the cam recess 72, a guide wall 72b that allows the cam protrusion 61 to rotate, and the cam protrusion. A swing groove 73c is formed in which the piece 61a is fitted and abutted to swing the operating lever 70 (see, for example, Patent Document 1).
JP-A-62-99578

  In the conventional operating lever, since the cam protrusion 61 rotates around the shaft portion 61b, guide walls 72b and 72b ′ that allow the cam protrusion 61 to rotate are formed in the cam recess 72. The guide wall 72b is formed on the cam protrusion 61a when the shaft 61b of the cam protrusion 61 is located at the most right side of the guide hole 71 as shown in FIG. 6 (when the operating lever 70 is swung most clockwise). It is formed on the rotation trajectory. Further, the guide wall 72b ′ is located on the rotation locus of the cam protrusion 61a when the shaft portion 61b of the cam protrusion 61 is located on the leftmost side of the guide hole 71 (when the operating lever 70 swings most counterclockwise). Is formed. Therefore, the width W of the operating lever 70 (the distance between the tangents S to the outer shape of the operating lever parallel to the center line CL passing through the swing shaft 74) is the relative maximum swing width of the shaft portion 61b and the cam projecting piece 61a. This is the sum of the rotation diameter and the thickness of the guide walls 72b and 72b ′. That is, in the conventional operation lever, since the guide walls 72b and 72b ′ that allow the cam protrusion 61 to rotate are formed in the cam recess 72, the width W is increased. Since the operating lever is swung around the swinging shaft, the housing of the actuator that encloses the operating lever becomes large.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide an actuator for a door lock device in which the width of the operating lever is reduced to reduce the housing.

An actuator for a door lock device according to the present invention, which has been made to solve the above problems, includes a housing, a rotating member that is rotatably held by the housing and that rotates two cam protrusions, and the rotating member. A motor that rotates, and an operating lever that is pivotably held at one end side by the housing and that engages and swings with the cam projecting piece to lock or unlock the door lock device. The actuator for a door lock device, wherein the operating lever has a substantially sector-shaped arm portion that narrows from the other end side toward one end side, and a facing surface that faces the rotating member on the other end side of the substantially sector-shaped arm portion. and a projection projecting toward the rotating member from the substantially fan-shaped arm portion, as well as exhibits an arcuate, with an insertion hole for inserting the rotation shaft of the rotary member, the protruding portion, the cam With one abuts a stopper wall exhibiting the rotation to regulate and arcuate pieces, said actuating lever the other is recessed in the cam protrusion and the fitting abuts direction from the one end side to the other end The cam projecting piece is capable of being positioned outside the projection surface of the substantially fan-shaped arm portion .

Further, the door lock device actuator of the present invention, the stopper wall exhibits an arc shape around the pivot shaft, the insertion hole is desirably exhibits an arc shape centered on the rocking shaft.

  Further, one end point of the arc surface is an engagement point with which one of the cam protrusions engages when the operating lever swings to the maximum, and the other end point swings the operating lever to the other maximum. It is good when it is an engagement point with which said one of said cam protrusions engages.

  A protrusion provided with a stopper wall that abuts one of the cam protrusions and restricts its rotation, and a swing groove that engages and abuts the other of the cam protrusions to swing the operation lever is provided with a swing shaft of the operation lever. Since the arm is provided on the distal end side of the arm portion having a guide hole through which the rotation shaft of the rotating member is inserted, there is nothing on the swing shaft side of the arm that intersects the rotation locus of the cam projection piece. As a result, the width W of the operating lever can be reduced, and the housing containing the operating lever can be reduced.

  The best mode actuator for a door lock device will be described with reference to FIGS. 1 is a perspective view of an entire door lock device provided with an actuator, FIG. 2 is a perspective view of an actuator for driving a locking lever, FIG. 3 is an exploded perspective view of the actuator, and FIG. 4 is a plan view and a side view of the main part. FIG.

  The door lock device 1 includes a base 2 fixed to the door side, a lift lever 3 pivotally supported on the base 2 by a pin 9a, and an open pivotally supported on the base 2 by a pin 9b. A lever 4, an open link 5 that can be rotated and translated to engage and disengage the pole with the open lever 4, a locking lever 7 that controls the engagement of the open link 5 with the pole, and a locking lever And an actuator 8 for swinging the actuator 7.

  The actuator 8 is for switching the door lock device to a locked state or an unlocked state. A state in which the closed door can be shifted to the open state is called an unlocked state, and the closed door is opened. A state that cannot be changed to a state is called a locked state.

  A step-like sub-base 6 having a standing wall 61 is supported above the base 2 by pins 9a and 9b.

  The lift lever 3 is interlocked via a pin 9a with a latch (not shown) that engages with a striker (not shown) fixed on the vehicle side and holds the door in a closed state.

  An open lever 4 is pivotally supported on the base 2 by a pin 9b, and the open link 5 is rotated and translated so as to engage with the open lever 4 and disengage the pole from the latch. The open link 5 has a long hole 51 that engages with a shaft portion 71 of the locking lever 7 to be described later, and a contact portion 52 that engages with a claw 31 of the lift lever 3. When the open lever 4 is operated in the direction of arrow D, the open link 5 translates in the direction of arrow E, and the contact portion 52 contacts the claw 31 of the lift lever 3 to rotate the lift lever 3 in the direction of arrow F. Then, the pole interlocked with the open lever 3 rotates to release the engagement with the latch, and the door is opened.

  A locking lever 7 is pivotally supported on the base 2 by a pin (not shown). The locking lever 7 has a shaft portion 71 that engages with the long hole 51 of the open link 5 and an engagement portion 72 that engages with a swing lever 81 of the actuator 8 described later.

  The actuator 8 is attached to the standing wall 61 of the sub base 6 via the bracket 20, and a swing lever 81 that swings around the swing shaft 82 is engaged with the engaging portion 72 of the locking lever 7.

  The actuator 8 includes a housing 83, a rotation member 84 that is rotatably held by the housing 83, rotates the two cam protrusions 84 a and 84 b, a motor 86 that rotates the rotation member 84, and one end of the housing 8. And an actuating lever 85 that oscillates by engaging with the cam protrusions 84a and 84b.

  The motor 86 rotates the rotating member 84 forward and backward via the worm gear 87. The rotating member 84 has a disk shape, and a hole through which a rotating shaft 88 fixed to the housing 83 is inserted is formed at the center, and cam projecting pieces 84a and 84b are formed on both the left and right sides around the hole.

  The operating lever 85 that swings in connection with the rotating member 84 is coaxial with the swinging shaft 82 provided on the facing surface 851b of the operating lever 85 on the side facing the rotating member 84, and the rotating shaft 88 of the rotating member 84. An arm portion 851 having a guide hole 851a through which it passes, and a stopper wall 852a that abuts the cam projection 84a provided on the distal end side of the arm portion 851 and restricts its rotation, and the cam projection 84b are fitted and abutted to operate the lever And a projecting portion 852 having a swinging groove 852b for swinging 85. The protruding portion 852 of the operating lever 85 protrudes from the facing surface 851b of the arm portion 851 toward the rotating member 84, and the swinging groove 852b opens in the direction of the swinging shaft 82 of the operating lever 85. The stopper wall 852a is an arc surface centered on the swing shaft 82, and the arm portion 851 is a substantially fan-shaped plate that extends perpendicularly from the arc surface 852a and narrows toward the swing shaft 82. One end point P of the arcuate surface 852a is an engagement point where the cam protrusion 84a engages when the operating lever 85 swings to the maximum, and the other end point Q is a cam protrusion when the operating lever 85 swings to the other maximum. The engagement points where the pieces 84a are engaged are respectively set. Therefore, the distance W between the tangent lines S to the outer shape of the actuating lever parallel to the center line CL passing through the swing shaft 82 is minimized.

Next, the operation of the actuator 8 will be described mainly with reference to FIG.
When the locking lever 7 is in the unlocked position as shown in FIG. 1, the rotating member 84 is stopped by engaging the cam protrusion 84a of the rotating member 84 with the engagement point P on the right side of the stopper wall 852a. When the motor 86 is driven to swing the locking lever 7 from the unlocked position to the locked position and the rotating member 84 is rotated in the counterclockwise direction, the right side that rotates in the counterclockwise direction is associated therewith. The cam projecting piece 84a once rotates on the locus that goes out of the arm portion 851, and the left cam projecting piece 84b is fitted into the swinging groove 852b in the center of the stopper wall 852a and the right wall surface of the groove 852b. 1, the operating lever 85 is swung so that the cam projecting piece 84 b is detached from the recessed groove 85 d, and the swinging lever 81 supported by the swinging shaft 82 is rotated in the direction of arrow A ′ in FIG. 1. Then, as shown in FIG. 4c, the cam protrusion 84a engages with the left engagement point Q, and the rotating member 84 is stopped.

  Next, when the rotating member 84 is rotated in the clockwise direction, the cam projecting piece 84a is rotated opposite to the above-described locking rotation, and is switched to the unlock position in FIG. 4a.

  Next, the operation of the door lock device main body will be described with reference to FIG. 1 in an unlocked state. When the swing lever 81 of the actuator 8 rotates in the clockwise direction indicated by the arrow A, the locking lever 7 is rotated in the counterclockwise direction indicated by the arrow B by the engagement of the swing lever 81 and the engaging portion 72. Then, the open link 5 is rotated in the clockwise direction indicated by the arrow C by the engagement between the shaft portion 71 of the locking lever 7 and the long hole 51 of the open link 5. Then, since the contact part 52 contacts the claw 31, it will be in the unlocked state where the lift lever 3 can be rotated by operating the open lever 4.

  The operation from the unlocked state to the locked state is as follows. When the swing lever 81 of the actuator 8 rotates in the counterclockwise direction indicated by the arrow A ′, the locking lever 7 is rotated in the clockwise direction indicated by the arrow B ′ by the engagement of the swing lever 81 and the engaging portion 72. . Then, the open link 5 is rotated in the counterclockwise direction indicated by the arrow C ′ by the engagement between the shaft portion 71 of the locking lever 7 and the long hole 51 of the open link 5. Then, the contact part 52 cannot contact the claw 31 and the lift lever 3 cannot be rotated even if the open lever 4 is operated.

  The actuator of the present invention can be applied to a door lock device for a slide type door in addition to the above door lock device for a hinge type door.

It is a perspective view of the whole door lock apparatus provided with the actuator concerning the present invention. It is a perspective view of the actuator for door lock wearing concerning the present invention. FIG. 3 is an exploded perspective view of the actuator of FIG. 2. FIG. 3 is a plan view and a side view of main parts of the actuator of FIG. 2. It is a disassembled perspective view of the conventional actuator. It is a principal part top view of the conventional actuator.

Explanation of symbols

1 ············· Vehicle door lock device 7 ··································· •・ ・ ・ ・ ・ ・ ・ ・ Oscillating shaft 83 ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ Housing 84 ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ Rotating member 84a, 84b ・ ・ ・ ・ Cam protrusion 85 ・ ・ ・.... Operating lever 851 ...
851a ... Guide hole
851b ... Opposing surface 852 ... Projection
852a ... Stopper wall
852b ... Oscillating groove 86 ... Motor 88 ... Rotating shaft P, Q ... Engagement point W・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ Operating lever width

Claims (2)

A housing, a rotating member that is rotatably held by the housing and that rotates two cam protrusions, a motor that rotationally drives the rotating member, and one end side that is swingably held by the housing; An actuator for a door lock device having an operating lever that engages and swings on a projecting piece to lock or unlock the door lock device,
The actuating lever protrudes toward the rotating member from a substantially sector-shaped arm portion that narrows from the other end side toward the one end side, and a surface facing the rotating member on the other end side of the substantially sector-shaped arm portion. A protrusion, and
The substantially fan-shaped arm portion has an arc shape and includes an insertion hole through which the rotation shaft of the rotation member is inserted.
The protrusion is in contact with one of the cam protrusions to restrict its rotation and has an arcuate stopper wall, and is recessed from the one end to the other end, and the other of the cam protrusions is A rocking ditch for fitting and abutting to rock the actuating lever,
The door lock device actuator according to claim 1, wherein the cam projecting piece can be positioned outside a projection surface of the substantially fan-shaped arm portion. The stopper wall exhibits an arc shape around the pivot shaft, the door lock device actuator according to claim 1 wherein the insertion hole exhibiting a circular arc shape centered on the rocking shaft.

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