JPH0575372U - Door lock actuator - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a door lock actuator that realizes reduction of parts cost and simplification of parts management. [Structure] The prying prevention cover 42 is provided with a locking claw 42c, and the locking claw 42c is locked to position the prying prevention cover main body 42a above the swing arm 30 provided outside the cover 2. The mounting groove 3h is provided in the case 3.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a door lock actuator used to remotely operate a vehicle door lock device, and particularly to prevent the door lock device from being pryed open by a wire inserted between a door panel and a door glass. The present invention relates to a door lock actuator having a prying prevention cover.

[0002]

[Prior Art]

 Conventionally, as a door lock actuator as described above, for example, a case that is closed by a cover is provided, and a swing arm that swings by the output of a motor that is housed in this case and that can rotate in the reverse direction is provided outside the case side. In addition to the above, a door lock actuator for the left door (or right door) with a prying prevention cover separate from the case is installed above the swing arm, and a swing arm is provided outside the cover side. At the same time, there was a door lock actuator for the right door (or left door) by providing a prying prevention cover separate from the cover above the swing arm.

In addition to these door lock actuators, there is also a structure in which a case or cover is integrally provided with a cover for preventing fraying.

[0004]

[Problems to be solved by the device]

 However, in the conventional door lock actuator described above, in the case of a door lock actuator in which the prying prevention cover is separate from the case or cover, the door lock actuator for the left door and the door lock actuator for the right door are Each case requires its own case and cover due to its different position, but with this, the prying-prevention cover must also have its own. It is necessary to manufacture two types of prying prevention covers for the lock actuator and the door lock actuator for the right door. As a result, the manufacturing cost of the parts is increased and the parts management becomes complicated. There was a problem.

Also, in the case of a door lock actuator in which a prying prevention cover is integrally provided on a case or a cover, the door lock actuator for the left door and the door lock actuator for the right door have their own covers. Since it requires a case and a cover with a cover, it has the same problem as described above, and it has been a conventional problem to solve this problem.

[0006]

[The purpose of the device]

 The present invention has been made in view of the above-mentioned conventional problems, and provides a door lock actuator capable of reducing the manufacturing cost of parts and facilitating the management of parts. It is an object.

[0007]

[Means for Solving the Problems]

 A door lock actuator according to the present invention comprises a case attached to a door, a cover for closing a side opening of the case, a forward / reverse rotatable motor housed inside the case, the case side and the cover side. In a door lock actuator equipped with a swing arm that is provided outside one of the two opposite sides and swings by the rotation output of the motor, and a prying-preventing cover that covers the upper part of the swing arm, The cover-side locking portion is provided on the cover and the cover-mounting locking portion that locks the cover-side locking portion to position the prying-prevention cover main body above the swing arm is provided in the case. Also, it is characterized in that it is provided on at least one of the above-mentioned covers. The structure has a means for solving the conventional problems described above.

[0008]

[Function of the device]

 Since the door lock actuator according to the present invention has the above-mentioned structure, the cover side locking portion of the prying prevention cover is provided on at least one of the case and the cover from the side on which the swing arm is provided. When the swing arm is locked to the body mounting lock part, it prevents prying-out regardless of whether the swing arm is installed outside the case or outside the cover. Since the main body of the cover is located above the swing arm, it is possible to prevent the swing arm from being opened by a wire or the like inserted between the door panel and the door glass.

In other words, since the prying prevention cover is a single component provided in both the door lock actuator for the left door and the door lock actuator for the right door, the manufacturing cost of the component can be reduced and This will facilitate parts management.

[0010]

【Example】

 The invention will be described below with reference to the drawings.

1 to 6 show an embodiment of a door lock actuator according to the present invention.

As shown in the figure, the door lock actuator 1 includes a case 3 closed by a cover 2, a motor 4 capable of forward and reverse rotation, and a reduction mechanism 10 for rotating the motor 4. An output shaft 20 for transmitting the rotation of the motor 4 driven by the speed reduction mechanism 10 to the outside is provided. The swing arm 30 is provided outside the case 3, and a prying prevention cover 42 for covering the swing arm 30 is provided. Is equipped with. Then, as shown in FIG. 5, the case 3 is provided with a hook portion 3a which can be attached to each of the lock portion brackets B provided on the left and right doors of the vehicle door.

The motor 4 is fitted in a motor mounting portion 3b provided in the case 3, and a worm 5 is mounted on the motor shaft 4a.

In addition to the worm 5, the speed reduction mechanism 10 includes a worm wheel 11 that meshes with the worm 5, and a pinion 12 that is interlocked with the worm wheel 11. The worm wheel 11 and the pinion 12 are respectively supported by the gear shaft 13 installed between the cover 2 and the case 3, and the pinion 12 is attached to the pinion side engaging portion 12b protruding from the outer periphery of the flange portion 12a thereof and the worm wheel. When the wheel side engaging portion 11b provided on the upper surface of the wheel 11 in FIG. 6 is engaged, the wheel 11 rotates together with the worm wheel 11.

The output shaft 20 integrally has a sector gear portion 21 that meshes with the pinion 12 of the speed reduction mechanism 10, and both end portions 20 a, 20 a are provided on the cover 2 and the case 3 so as to face each other. By rotatably supporting the holes 2c and 3c, the pinion 12 can be rotated in accordance with the operation of the pinion 12. In this case, both ends 20a, 20a of the output shaft 20 both penetrate the shaft support shaft holes 2c, 3c and project outward, and these ends 20a, 20a are provided with annular grooves 20b, respectively. is there.

The sector gear portion 21 has a pin 21a shown by an imaginary line extending downward in FIG. 6 at a base end side portion thereof, and the pin 21a extends downward in FIG. 6 of the worm wheel 11 through the pin 21a. The contact holder 22 provided is driven. The contact holder 22 has a cylindrical shape with a collar, and is fitted to an annular wall portion 3e formed concentrically with the gear shaft 13 on the bottom surface of the case 3 via an insulating cylinder 23. A contactor 24 formed by connecting arc-shaped contact pieces 24a and 24b is attached to the lower surface of the contactor 24. The contact holder 22 is adapted to be rotated in accordance with the rotation of the output shaft 20 by engaging the pin 21a of the sector gear portion 21 with the notch 22b provided in the flange portion 22a. That is, by rotating the contact holder 22, the contactor 24 is moved on the three terminals 25a to 25c arranged on the bottom surface of the case 3 and along the annular wall portion 3e, and the contactor 24 is adjacent to the terminals 25a to 25c. The motor 4 is rotated or stopped by appropriately contacting and separating from c.

The insulating cylinder 23 has an insulating piece 23a, which is inserted between the contact piece 24a inside the contactor 24 and the terminals 25a to 25c, at a part of the periphery of the lower end of FIG. The insulating cylinder 23 is provided with the contact holder 22 by the engagement of the projection 23b provided in the position substantially opposite to the insulating piece 23a and shown by the phantom line in FIG. 6 and the oval hole 22c provided in the flange portion 22a of the contact holder 22. It is designed to rotate within a narrower range than the rotation range of. That is, the movement range of the insulating piece 23a is made smaller than the movement range of the contact piece 24a of the contactor 24, and the contact / separation timings of the contact pieces 24a, 24b with respect to the terminals 25a to 25c are shifted, thereby chattering. To prevent the occurrence of.

The swing arm 30 has a mounting recess 30 a at its boss portion 30 c, which is fitted to the end portion 20 a of the output shaft 20. An annular projection 30b is provided in the vicinity of the bottom surface (upper surface in FIG. 6) of the mounting recess 30a. This swing arm 30 fits the mounting recess 30a into the end 20a of the output shaft 20, and also the annular projection 30b. Is engaged with the annular groove 20b of the end portion 20a so as to be detachably mounted on the output shaft 20. In this case, a tapered columnar portion 30d is provided at the center of the mounting recess 30a of the swing arm 30, and the columnar portion 30d is provided in the centering hole 20d provided on the axis of the end portion 20a. Since the swing arm 30 is pressed against the output shaft 20, the swing arm 30 is prevented from spinning around the output shaft 20.

On the other hand, a rod connecting portion 30e for connecting a rod (not shown) connected to the door lock portion is provided on the tip side of the swing arm 30.

In this embodiment, the swing arm 30 is attached to the end portion 20a on the right side of FIG. 3 (upper side of FIG. 6) of the output shaft 20, and the left side of FIG. 3 (lower side of FIG. 6) of the output shaft 20. A cap 31 having the same shape as that of the boss portion 30c of the swing arm 30, that is, a cap 31 having a mounting recess 31a, an annular protrusion 31b and a cylindrical portion 31d is mounted on the end portion 20a. The left end 20a is covered.

The door lock actuator 1 includes a coil spring 41 provided inside the annular wall portion 3e and a case side spring hooking portion 3f formed on the bottom surface of the case 3 and inside the annular wall portion 3e. And a wheel side hooking portion (not shown) provided on the lower surface of the worm wheel 11 in FIG. In this return mechanism, one hook-shaped end portion 41a of the coil spring 41 is hooked on the case-side spring hooking portion 3f, and the other hook-shaped end portion (not shown) is hooked on the wheel-side hooking portion. When the motor 4 is stopped, the worm wheel 11 is rotated by the output of the motor 4 regardless of whether the worm wheel 11 is rotated clockwise or counterclockwise in FIG. The elastic force of the coil spring 41 restores the original position.

Further, as shown in FIGS. 1 to 3, the door lock actuator 1 is provided with a prying prevention cover 42 that covers the upper part of the swing arm 30. As shown in detail in FIG. 4, the prying prevention cover 42 includes a cover body 42a whose both ends are curved downward, and a cover support portion 42b provided at an end edge of the cover body 42a. , An insert piece 42d extending from the cover support portion 42b to the side opposite to the cover body 42a (upper left in the figure) and having locking claws (cover side locking portions) 42c, 42c on both sides of the tip. There is. The prying prevention cover 42 is inserted from one side (right side in FIG. 3) into a mounting groove (cover mounting locking portion) 3h which is provided by penetrating the thick portion 3g at the upper end of the case 3. Is inserted, and the locking claws 42c and 42c are locked to the other side surface (the left side in FIG. 3) of the thick portion 3g so as to be attached to the case 3. In this state, the cover body 42a is attached. Covers the upper part of the swing arm 30 to prevent the unlocking operation by the wire inserted from between the door panel and the door glass. In this case, the upper side of the cover support part 42b of the prying prevention cover 42 is bent to the side opposite to the cover body 42a, and the thick part 3g of the case 3 is arranged substantially at the center in the horizontal direction of FIG. By doing so, as shown by the phantom lines in FIGS. 1 to 3, when the swing arm 30 is attached to the end portion 20A on the opposite side of the output shaft 20, the prying prevention cover 42 is attached to the opposite side. The upper part of the swing arm 30 mounted on the opposite side can be covered with the cover body 42a.

Therefore, in the door lock actuator 1 described above, the prying prevention cover 42 can be attached to either the cover 2 side or the case 3 side, and in any case, the swing arm Since the swing arm 30 can be covered by arranging the cover body 42a above the cover 30, the prying prevention cover 42 is provided with two types of parts for the cover attachment and the case attachment, that is, the case attachment. , The door lock actuator for the left door and the door lock actuator for the right door can be made into a single part instead of the dedicated parts, so that the parts can be reduced and the parts can be easily managed. Becomes

Further, the door lock actuator 1 according to this embodiment can be attached to any lock portion bracket B provided on each of the left door and the right door of the vehicle, and the swing arm 30 can be attached to the output shaft 20. Since it can be attached to both ends 20a, 20a, parts such as the cover 2 and the case 3 are unified, and in combination with the above-mentioned unification of the prying prevention cover 42, the manufacturing cost of the parts is increased. Will be even lower and easier to manage.

In the door lock actuator 1 described above, first, when the door lock is in the lock-off state (the state shown by the solid line in FIG. 1), the external power is supplied to the motor 4 and the motor 4 is rotated. This rotation is transmitted to the worm wheel 11 via the worm 5, and the worm wheel 11 rotates clockwise in FIG.

Next, when the wheel-side engaging portion 11b of the worm wheel 11 engages with the pinion-side engaging portion 12b of the pinion 12, the pinion 12 starts rotating clockwise with the worm wheel 11 in FIG. Along with this, the output shaft 20 in which the sector gear portion 21 is engaged with the pinion 12 is rotated counterclockwise in FIG. 5, and the swing arm 30 attached to the end 20 a of the output shaft 20 is rotated counterclockwise in FIG. 1. Turn to.

Then, as the output shaft 20 rotates, the contact holder 22 rotates clockwise, and when the contactor 24 separates from the terminal 25a and comes into contact with the terminals 25b and 25c, the external force to the motor 4 is increased. The power supply is cut off and the motor 4 is stopped. At this time, the swing arm 30 is in the state shown by the phantom line in FIG. 1, and the door lock is in the lock-on state via the rod (not shown).

During this time, the insulating cylinder 23 rotates together with the contact holder 22 in a narrower range than the contact holder 22, so that the insulating piece 23 a of the insulating cylinder 23 slightly shifts from the inner contact piece 24 a of the contactor 24. Since the contact pieces 24a and 24b of the contactor 24 contact and separate with respect to the terminals 25a to 25c, the chattering hardly occurs.

Further, when the wheel side spring hooking portion (not shown) of the return mechanism moves away from the case side spring hooking portion 3f, an elastic force is generated in the coil spring 41, so that the worm wheel 11 is stopped at the same time when the motor 4 is stopped. Only will return to their original position.

Then, when power is supplied from this state to rotate the motor 4 in the direction opposite to the above rotation, the worm wheel 11 and the pinion 12 rotate in the opposite direction to the above description, and the output shaft is rotated. 20 and the swing arm 30 rotate in opposite directions, the swing arm 30 enters the state shown by the solid line in FIG. 1, and the door lock is turned off.

In this embodiment, since the cap 31 is attached to the end portion 20a of the output shaft 20 to which the swing arm 30 is not attached, water and dust enter the case 3 through the shaft support hole 3c. It can be prevented from entering.

In this embodiment, the output shaft 20 is integrally provided with the sector gear portion 21, but the present invention is not limited to this. The sector gear portion 21 may be separated from the output shaft 20. It is possible. Further, the detailed structure of the door lock actuator according to the present invention is not limited to the above embodiment.

[0033]

[Effect of the device]

 As described above, according to the door lock actuator of the present invention, the case attached to the door, the cover closing the side opening of the case, and the motor capable of rotating in the forward and reverse directions housed in the case. And a swing arm that is provided outside either one of the case side and the cover side and swings according to the rotation output of the motor, and a prying prevention cover that covers the upper side of the swing arm. In a door lock actuator having a body, a cover side engaging portion is provided on the prying prevention cover, and the prying prevention cover body is positioned above the swing arm by locking the covering side locking portion. Since the cover mounting engagement portion is provided on at least one of the case and the cover, the swing arm is attached to the case side. Regardless of whether it is installed outside or on the outside of the cover side, if the prying-prevention cover is attached from the side where the swing arm is installed, the prying-prevention cover body Can be positioned above the swing arm, that is, the prying prevention cover can be made into a single part instead of two types of parts for case attachment and cover attachment. It is possible to reduce costs and manage parts easily, and it is possible to contribute to the reduction of production costs, which is an extremely excellent effect.

[Brief description of drawings]

FIG. 1 is a side view showing an embodiment of a door lock actuator according to the present invention.

FIG. 2 is a bottom view of the door lock actuator shown in FIG.

3 is a front explanatory view of the door lock actuator shown in FIG. 1. FIG.

FIG. 4 is an enlarged perspective explanatory view of a prying prevention cover mounted on the door lock actuator shown in FIG.

5 is a side view for explaining a state in which a cover of the door lock actuator shown in FIG. 1 is removed.

6 is a cross-sectional explanatory view taken along the line AA of FIG.

[Explanation of symbols]

 1 Door Lock Actuator 2 Cover 3 Case 3h Mounting Groove (Locking Part for Cover Mounting) 4 Motor 30 Swing Arm 42 Prying Prevention Cover 42a Cover Main Body (Prying Prevention Cover Main Body) 42c Locking Claw (cover side) (Locking part)

Claims (1)

[Scope of utility model registration request] 1. A case attached to a door, a cover closing a side opening of the case, a motor capable of rotating in the forward and reverse directions housed in the case, and the case side and the cover side facing each other. In a door lock actuator provided with a swing arm that is provided outside either one of the swing arms and swings by the rotation output of the motor, and a prying-preventing cover that covers the swing arm above, Providing a cover side locking part,
At least one of the case and the cover is provided with a cover attachment locking portion that locks the cover-side locking portion and positions the prying-opening prevention cover body above the swing arm. Door lock actuator characterized by.