JPH0718284B2 - Vehicle actuator - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Field of Industrial Application) [0001] The present invention relates to a vehicle actuator in which two systems can be independently operated.

(Prior Art) Generally, a vehicle has a plurality of opening / closing sections such as a trunk lid or a filler lid, and the lock of each of these lids is remotely unlocked by an actuator.

In this case, if the actuators for controlling the respective lids are separately provided, the number increases, and problems such as installation space, assembling, cost, etc. occur. For example, JP-A-62-137425 As described in the publication, it is known that two actuators can be operated by one actuator.

The outline of the actuator for operating these two systems is taken out by the action of the electromagnetic clutch that disconnects / contacts the rotational power of the drive motor, and the rotational power is decelerated by the speed reducing mechanism, and then the first operating system and the second operating type are used. A power transmission mechanism is used to transmit power to each drive unit that drives the.

(Problems to be Solved by the Invention) As described above, in the conventional actuator, an electromagnetic clutch, a reduction mechanism, a power transmission mechanism, etc. are required, and in particular, the electromagnetic clutch is apt to be large due to functional components such as coils. There was a problem that it was difficult to make the entire device large and compact. Further, since the number of parts is large, the device is likely to be complicated, and it is not desirable in terms of cost.

Therefore, it is an object of the present invention to provide a vehicle actuator having a simple structure and compact size.

[Structure of the Invention] (Means for Solving the Problems) In order to achieve the above-mentioned object, the present invention is directed to a drive motor capable of forward / reverse rotation, and a drive motor fixedly attached to an output shaft of the drive motor when the output shaft rotates. A centrifugal clutch that can be disengaged / engaged, a screw rod that rotates normally or reversely when the centrifugal clutch is engaged, and a screw portion of the screw rod that is screwed to the first operating direction from the neutral position to the first operating direction.
A drive member movable in a second operation direction opposite to the operation direction; and first and second operation force transmission members extending from the drive member in the neutral position and having different wiring directions, The drive member, when moving from the neutral position in the first operating direction, moves to the first position.
While pulling the second operation force transmitting member and idling the second operation force transmitting member, the second operation force transmitting member is pulled to move the first operation force transmitting member when moving from the neutral position to the second operating direction. A first and a second operation force transmission member so as to idle the member,
The movement directions are eccentric to each other and linked.

(Operation) According to such an actuator, the first operating cable can be pulled by moving the drive member from the neutral position in the first operating direction. Further, the driving member is driven in the second operation direction, so that the second operation cable can be pulled through the movable body. In this case, the screw rod that drives the drive member in the first and second operation directions serves as a power transmission unit that reduces the rotational power and transmits the rotation power to the drive member. Further, the clutch mechanism also has a simple structure due to the centrifugal clutch and can be downsized.

(Embodiment) An embodiment of the present invention will be described in detail below with reference to the drawings of FIGS. 1 to 7.

Reference numeral 1 in the figure shows a body case of the actuator. A drive motor 3 capable of normal rotation and reverse rotation is provided in the main body case 1, and a centrifugal clutch 7 is attached to an output shaft 5 of the drive motor 3.

The centrifugal clutch 7 has a clutch housing 9 fitted therein so as to be freely rotated with respect to the output shaft 5, and an engaging portion 11 is provided inside thereof. A disk-shaped magnet holder 13 is arranged in the clutch housing 9, and the magnet holder 13 is integrally fixed to the output shaft 5.
An engaging body 15 made of a magnet that can be attracted to the output shaft 5 is inserted into and retractable from the magnet holder 13 so that the engaging body 15 is swung outward against the attraction force of the magnet when the magnet holder 13 rotates. It is like this. The engagement body 15 is in a disconnected state apart from the engagement portion 11 when the rotation of the magnet holder 13 is stopped,
When it is swung outward by centrifugal force, it comes into contact with the engaging portion 11 of the magnet holder 13 so as to mesh with it. As a result, the rotational power of the output shaft 5 is transmitted to the clutch housing 9.

A transmission gear 19 meshes with the pinion 17 formed in the clutch housing 9 to ensure a predetermined reduction ratio. The transmission gear 19 is integrally formed with a screw rod 21 supported at both ends of the main body case 1.

The drive member 25 is screwed into the threaded portion 23 of the screw rod 21,
The driving member 25 and the driving member 25 are in the relationship of a bolt and a nut, and together with deceleration of the pinion 17 and the transmission gear 19, a prescribed reduction ratio is secured. The driving member 25 moves from the neutral position N to the first operating direction a as shown in FIG. 4 when the screw rod 21 rotates forward or backward.
Is movable in the opposite second operating direction b.

The threaded portion 23 of the threaded rod 21 is formed by a large number of screws with a large pitch, and the screw rod 21 is configured to rotate in conjunction with each other when the drive member 25 moves in the axial direction of the threaded rod 21. To be done.

The drive member 25 is connected to a first operation cable 27, which is a first operation force transmitting member that pulls when moving in the first operating direction a and idles the pulling operation when moving in the second operating direction. .

That is, as shown in FIG. 2, a protrusion 31 having a cable guide groove 29 is formed on the upper surface of the driving member 25, and the end of the first operation cable 27 extended through the cable guide groove 29 in the protrusion 31. The part 33 is engaged. Therefore, the terminal
33 is a protrusion 31 when the drive member 25 is driven in the first operating direction a.
To move with the drive member 25. Further, when the drive member 25 moves from the neutral position N in the second operation direction b, the terminal portion 33, that is, the first operation cable 27 remains in that position.

On the other hand, below the drive member 25, a movable body 35 that is slidable along the operating direction of the drive member 25 is arranged.

The movable body 13 has a first operation cable 27 as shown in FIG.
And the terminal portion 39a of the second operation cable 39, which is the second operation force transmission member, is displaced and coupled downward in the drawing, and is arranged in the central portion along the sliding direction of the movable body 35. A long hole 37 is provided. A guide pin 25a protruding from the bottom surface of the driving member 25 is desired in the long hole 37, and when in the neutral position N, the guide pin 25a is located at one end 37a (fourth hole) of the long hole 37.
It is positioned on the right side of the figure). Therefore, the movable body 35
Is interlockingly connected to the drive member 25 via the guide pin 25a only when the drive member 25 moves from the neutral position N to the second operation direction b, and is movable together with the drive member 25 in the second operation direction b. Become.

FIG. 7 shows an actuator implemented on the automobile 41. The main body case 1 of the actuator is the trunk room 43
Fixed to the rear end panel of the first operation cable 27
Is linked with a known lock mechanism 47 for locking and unlocking the trunk lid 45. Further, the second operation cable 39 is interlockingly linked with a known lock mechanism (not shown) for locking and unlocking the filler lid 49, and is locked when the first and second operation cables 27, 39 are pulled. It will be released.

The first operation cable 27 and the second operation cable 39 return to their original state by a return spring (not shown) provided on the lock mechanism side when the centrifugal clutch 7 is disengaged at the completion of pulling. Like As a result, when the first and second operation cables 27, 39 are returned, the drive member 25 moves to the neutral position N.
Will be positioned.

In the actuator configured as described above, by moving the drive member 25 at the neutral position N in the first operating direction a, the first
The operation cable 27 is pulled to unlock the lock mechanism 47 on the trunk lid 45 side. At this time, the movable body 35 does not move and the pulling operation of the first operation cable 27 is not affected. After the completion of towing, the centrifugal clutch 7 is disengaged to drive the driving member.
25 is returned to the neutral position N by the return movement of the first operation cable 27. At that time, since the centrifugal clutch 7 is disengaged, the output shaft 5 of the motor 3 is not interlocked, so that it is possible to easily return to the neutral position N.

Next, when the drive member 25 is moved in the second operation direction b, the movable body is moved.
35 moves together with the drive member 25 and pulls the second operation cable 39 to unlock the lock mechanism (not shown) on the filler lid 49 side. At this time, since the terminal portion 33 of the first operation cable 27 remains at the neutral position N, the pulling operation of the second operation cable 39 is not affected. In addition, in the above-described embodiment, the example in which the operating force transmitting member is a cable has been described, but this cable may be replaced with a rod.

[Effects of the Invention] As described above, according to the actuator of the present invention, the transmission path can be reliably cut off by the centrifugal clutch, and the drive member can be smoothly returned to the neutral position.

Further, the drive member screwed to the screw rod is located at the first position from the neutral position.
When moving in the operating direction and the second operating direction which is the exact opposite of the first operating direction, it is possible to operate the first and second operating force transmitting members, which are two systems, without trouble. Moreover, since the movement stroke of the drive member is small, the overall structure can be simplified and made compact.

[Brief description of drawings]

FIG. 1 is a sectional view showing an actuator of the present invention, FIG. 2 is a perspective view of a main part, FIG. 3 is a sectional view taken along the line III-III of FIG. 1, and FIG. 4 is a line IV-IV of FIG. Sectional views, FIGS. 5 and 6 are operation explanatory views, and FIG. 7 is an explanatory view applied to an automobile. 3 …… Drive motor 5 …… Output shaft 7 …… Centrifugal clutch 21 …… Screw rod 25 …… Drive member 27 …… First operation cable 35 …… Movable body 39 …… Second operation cable

Claims (1)

[Claims] 1. A drive motor capable of forward / reverse rotation, a centrifugal clutch that is fixed to the output shaft of the drive motor and is in contact / disengagement with the output shaft when the output shaft rotates, and normal rotation or reverse rotation occurs when the centrifugal clutch is in contact. A screw rod, a drive member that is screwed to a screw portion of the screw rod, and is movable from a neutral position in a first operating direction and a second operating direction that is diametrically opposite to the first operating direction, and extends from the drive member in the neutral position. And a first and a second operation force transmission member having different installation directions, and the drive member pulls the first operation force transmission member when moving from the neutral position to the first operation direction. Then
While the second operating force transmitting member is idling, the first and the second operating force transmitting members are pulled so that the first operating force transmitting member is idling when the second operating force transmitting member is moved from the neutral position to the second operating direction. 2. An actuator for a vehicle, characterized in that the operating force transmission member 2 and the moving direction thereof are eccentric to each other so as to be linked and linked.