JP3279871B2 - Motor drive - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a motor type driving apparatus which can operate a predetermined load by a driving force of a motor.

[0002]

2. Description of the Related Art Conventionally, motor-type driving devices have been used for driving a drain valve, a shutter of a ventilation fan, and the like. In this motor-type driving device, a clutch that operates by a solenoid to transmit and disconnect the output from the motor and a load driving output member that receives the output from the motor move between the motor rotor and the load driving output member. A switch mechanism that cuts off the current to the motor when it reaches the predetermined position and a device for holding the load driving output member at the predetermined position, such as a motor reverse rotation prevention lever, are required.
No. 17536).

On the other hand, as disclosed in Japanese Patent Application Laid-Open No. 2-159942, a planetary gear system operated by an electromagnet to transmit and cut an output from a motor between a rotor of the motor and an output member for driving a load. A device and a motor for maintaining the load drive output member at the predetermined position while keeping the load drive output member at the predetermined position while continuing to supply power to the motor even after the clutch and the load drive output member have moved to the predetermined position. There is also a motor-type drive device having a switch mechanism for simultaneously turning off the power to the electromagnet.

[0004] These motor-type driving devices have a case to prevent dust and water from entering the inside from the outside. Further, the solenoid and the cam switch mechanism are arranged in the same space (Japanese Utility Model Publication No. Hei 5-17536), or the gear train mechanism and the load driving output member are arranged in the same space (Japanese Unexamined Patent Publication No. 2-159942). .

[0005]

However, the switch mechanism described in Japanese Utility Model Publication No. Hei 5-17536 switches off the power to the motor when the load driving output member moves to a predetermined position upon receiving the output from the motor. In the motor type driving device having the above, electric noise is generated by turning on / off the switch mechanism, which may cause malfunction of a device using the motor type driving device. In addition, it is necessary to provide a switch mechanism specially, and it is necessary to adjust the on / off position, so that productivity and reliability are deteriorated. In addition, the number of parts increases, which causes a cost increase. Furthermore,
When used around water, such as for driving a drain valve, the switch is dangerous and is prone to failure.

On the other hand, after the load driving output member moves and reaches a predetermined position, the power supply to the motor is continued, but the rotation of the rotor is prevented, and the load driving output member is held at the predetermined position. In Japanese Unexamined Patent Publication No. 2-159942, an excessive load is applied to the motor, and the life of the motor is shortened. Also, if a synchronous motor is used as the motor, forward rotation and reverse rotation will be repeated in small steps between the member that prevents rotation of the rotor and the reverse rotation prevention lever of the motor, and unless the rotation is locked by a rotor lock member or the like, In practice, a synchronous motor cannot be used.

Further, in the conventional motor type driving device, since the internal mechanism is covered by a normal case, when the device is used in a place where water is used, such as a drain valve, water intrudes from the divided portion of the case to the inside. Operation failure.

Further, in the conventional motor type driving device, the cam switch mechanism and the load driving output member which are largely changed by the user and the specifications are in the same space, that is, the same space as the solenoid and the gear train whose specifications are hardly changed. Because it is placed in the case, it tends to be slow to respond to user requests and specification changes. In addition, there is a problem that it is not possible to perform a temporary assembly check for only the gear train.

Further, in the load driving output member of the rack structure in the conventional motor type driving device, the cross-sectional shape is simply a square such as a rectangle. In addition, since the load driving output member needs to be thick due to the problem of strength, its dimensions are not stable due to sink marks and shrinkage differences during molding. For this reason, when sliding between the divided cases, the backlash increases.

SUMMARY OF THE INVENTION An object of the present invention is to provide a motor type drive device which does not require a special switch mechanism and does not overload the motor.

Also, the present invention does not require a special switch mechanism, and does not overload the motor.
In addition, it is an object of the present invention to provide a motor-type drive device in which water does not enter the inside from the divided portion of the case.

Further, the present invention does not require a special switch mechanism, and does not overload the motor.
In addition, we can quickly respond to user requests and specification changes,
It is another object of the present invention to provide a motor-type drive device capable of performing a temporary assembly check of only the gear train.

Another object of the present invention is to provide a motor-type driving device which prevents backlash during sliding of a load driving output member.

[0014]

In order to achieve the above object, according to the present invention, there is provided a motor, a first clutch element that is driven to rotate by rotation of a rotor of the motor, and a first clutch element. A second clutch element having an engaging / disengaging portion that can be disengaged from the engaging portion provided on the first clutch element; and a clutch operating member for engaging and disengaging the engaging portion of the first clutch element and the engaging / disengaging portion of the second clutch element. And a gear train that meshes with a clutch pinion provided in the second clutch element, and a load drive output member that is driven by receiving rotation of the gear train.
3 that engagement of the first and second clutch elements, disengagement of the first and second clutch elements and prevention of rotation of the clutch pinion, and disengagement of the first and second clutch elements and rotation of the clutch pinion are possible. As a configuration to make the mode move ,
Note and a mode of the first and disengagement in and round Utate阻 stop clutch pinion of the second clutch element, provided with a rotation preventing portion for preventing rotation of the second clutch element to the clutch actuating member, both clutches element disengaged In this case, the rotation preventing portion is engaged with the second clutch element, the rotation of the second clutch element is prevented, and the load driving output member can be held at a predetermined position.

According to a second aspect of the present invention, a motor, a first clutch element which is driven to rotate by rotation of a rotor of the motor, and an engaging portion provided on the first clutch element can be disengaged. A second clutch element having an engaging and disengaging portion, a clutch operating member for engaging and disengaging an engaging portion of the first clutch element and an engaging and disengaging portion of the second clutch element, and a clutch provided on the second clutch element in the motor driving apparatus having a gear train meshing with the pinion, and a load driving output member driven by receiving rotation of the gear train, clutch
The rotation prevention portion for preventing the rotation of the second clutch element Ji actuating member is provided, when both the clutch element is disengaged, the rotation stop portions
The engaged with the second clutch element, thereby enabling holding the second clutch element blocking and load driving output member rotation to a predetermined position.

[0016] The invention of claim 3 is based on claim 1 or
2. In the motor type drive device described in 2 , the first clutch element is provided on the rotor, the second clutch element is a motor pinion slidably provided on the rotation shaft of the rotor, and the gear train is a reduction gear train.

Further, the invention according to claim 4 has a dividable case for covering the internal equipment, and a projection for preventing water from entering from the split part of the case on the outer surface of the upper case when the apparatus is mounted. ing.

According to a fifth aspect of the present invention, in the motor type driving device, the load driving output member is arranged on one side of the middle base plate, and the gear train is arranged on the other side of the middle base plate.

According to a sixth aspect of the present invention, a thin portion is provided on a load driving output member of a motor type driving device, and the thin portion is sandwiched by a dividable case.

Further, the invention according to claim 7 is characterized in that the solenoid comprises:
A movable iron core to which the solenoid can be attracted, the movable iron core is engaged with the clutch operating member, a fulcrum portion is provided on the clutch operating member, and the movable iron core is moved to move the clutch operating member to the fulcrum portion. A structure for swinging to the center to operate, a fulcrum of a clutch operating member, a suction portion of a solenoid, an engaging portion of a clutch operating member and a movable iron core, a first clutch element or a second clutch element, and a clutch operating member Are disposed in substantially the same plane.

In the invention according to claim 8 , the movable range of the movable iron core is made larger than the minimum necessary range for operating the clutch operating member.

Further, according to a ninth aspect of the present invention, a supporting ridge portion substantially parallel to the engaging portion of the clutch operating member and the movable iron core is formed at a fulcrum portion of the clutch operating member, and the fulcrum portion is contacted with the supporting ridge portion. Is provided, and when the clutch operating member is operated, it swings around the support ridge.

According to a tenth aspect of the present invention, there is provided a solenoid, and a movable iron core to which the solenoid can be attracted, the movable iron core is engaged with a clutch operating member, and a fulcrum portion is provided on the clutch operating member, and When the iron core moves, the clutch actuating member is pivoted about the fulcrum portion to be actuated, and a plurality of operating surfaces formed by a plane substantially parallel to the clutch actuating member and the engagement portion of the movable iron core are formed on the fulcrum portion at an angle to each other. A holding member which is formed differently and holds the fulcrum while substantially contacting these operating surfaces is provided.

[0024]

Therefore, in the motor-type driving device according to the first or second aspect , first, the clutch operating member operates and the clutch is engaged. When the motor is energized with the clutch engaged, the rotational force of the rotor is transmitted to the load driving output member,
This member is driven to a predetermined position. Thereafter, when both clutch elements are disengaged, that is, when the clutch is disengaged, the rotational force of the rotor is not transmitted to the load driving output member, and the load driving output member returns when the load driving output member is biased. Try to return to the original position. However, the rotation preventing portion of the clutch operating member engages with the second clutch element,
In order to prevent the rotation of the second clutch element, the load driving output member is held at a predetermined position. At this time, the rotor of the motor continues to rotate.

The return of the load driving output member to the original position is performed by releasing the engagement between the rotation preventing portion of the clutch operating member and the second clutch element. That is, the second clutch element is released by the release of the engagement, for example, the return biasing force can be released, and the load driving output member returns to the original position.

[0026] In addition, in the invention of claim 3, claim 1 or
Or the motor drive device according to 2 , wherein the first clutch element is provided on the rotor, the second clutch element is a motor pinion slidably provided on the rotating shaft of the rotor, and the gear train is a reduction gear train. Therefore, the engagement position between the rotation preventing portion of the clutch operating member and the second clutch element is the position closest to the rotor.

Further, in the motor type driving device of the fourth aspect ,
When used in a device such as a washing machine, even if water is transmitted from the washing machine side, the water is blocked by the projection on the outer surface of the case and falls directly downward from the projection. And it does not flow down across the division of the case.

Further, in the motor type driving device according to the fifth aspect ,
The operation check is performed in a state where the gear train of the motor type driving device is arranged on one side of the middle base plate. After that, it is finished.
On the other hand, on the other side of the middle base plate, load driving output members having different operation amounts and the like are appropriately arranged according to user requirements and specifications.

Further, in the motor type driving device according to claim 6 ,
The load drive output member can be slid while holding the case with a thin portion that easily provides dimensional accuracy.

Further, in the motor-type driving device according to claim 7 ,
When the solenoid is turned on, the movable iron core is adsorbed and moved by the solenoid. Then, the clutch actuating member engaged with the movable iron core is swung about the fulcrum and actuated. At this time, the suction portion of the solenoid, the engaging portion of the movable iron core and the clutch operating member, the fulcrum portion of the clutch operating member, and the engaging portion of the first clutch element or the second clutch element and the clutch operating member are substantially the same. Since it is arranged in a plane, the pivoting of the clutch actuating member takes place in this plane. Therefore, swinging in a twisted direction that does not maintain this plane is not performed.

[0031] In the motor driving device of claim 8, during assembly of the motor driving device, after fitting the movable iron core to engage the clutch actuating member to the movable iron core,
This clutch operating member is mounted. Here, when the clutch operating member is engaged with the movable iron core, the movable iron core can be largely moved and engaged, so that the clutch operating member can be easily engaged.

According to the ninth aspect of the present invention, there is provided a motor type driving device comprising:
When the clutch operating member is swung by the movable iron core,
Since the support ridge of the fulcrum is pinched and pressed, the support fulcrum is swung about the support ridge. That is, it is difficult for the movable iron core to swing around a portion other than the support ridges. For this reason, the swing direction of the clutch operating member is substantially constant regardless of the position at which the movable iron core and the clutch operating member are engaged.

Further, in the motor-type driving device according to the tenth aspect, a pair of substantially parallel operating surfaces formed at the fulcrum of the clutch operating member is held while being in surface contact with the holding member. Then, as the clutch operating member swings, the operating surface held by the holding member is changed. That is, depending on the state of swinging of the clutch operating member, the operating surface to be sandwiched while being in surface contact varies.

[0034]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The construction of the present invention will be described below in detail with reference to the embodiments shown in the drawings.

FIGS. 1 to 7 show an embodiment of the motor type driving apparatus according to the present invention. The motor-type driving device is covered with a case that can be divided into a first case 1 and a second case 2, and a base plate 3 and a middle base plate 4 are provided in a box-shaped space formed by the two cases 1 and 2. Is arranged. The motor 5 is attached to one side (the lower side in FIG. 1) of the main plate 3. On the other hand, the rotation of the rotor 6 in the motor 5 is transmitted to the load driving output member 15 in the space on the other side (the upper side in FIG. 1) of the ground plate 3, that is, the space formed by the ground plate 3 and the middle ground plate 4. A reduction gear train is arranged.

A projection 1a is provided on the inner surface and a cutout 1b is provided on the outer surface of the divided surface of the first case 1. On the other hand, a projected portion 2a is provided on the outer surface of the divided surface of the second case 2. , A notch 2b is provided on the inner side. Then, the projections 2a are fitted to the notches 1b while being fitted thereto, while the projections 1a are fitted to the notches 2b through a small gap, so that the two cases 1 and 2 are fitted to each other. A screw 22 is fitted and fixed in a plurality of case holes, for example, 2d provided in both cases 1 and 2. Further, a projection 2c is provided on the outer surface of the upper second case 2 to prevent water from entering from the divided portion X of the two cases 1 and 2 when the second case 2 is attached to the device. The protrusion 2
c is a dividing part X in order to prevent water falling down the second case 2 when attached to the device from coming into the dividing part X.
Is set slightly above (slightly below in FIG. 1), and its shape is preferably an umbrella shape that slightly hangs down on the divided portion X side.

The motor 5 is a small synchronous motor,
The rotor 6 having a is disposed in a stator (not shown). The rotor 6 is provided with a first clutch element 6b, and is rotatable integrally with the fixed shaft 6d together with the annular magnet 6a. The first clutch element 6b has an engagement portion 6c that can be disengaged from a motor pinion 7 described later.
Are formed.

A motor pinion 7 serving as a second clutch element is disposed opposite to the first clutch element 6b. The motor pinion 7 is also rotatably fitted to the fixed shaft 6d. The motor pinion 7 has an engagement / disengagement portion 7a that can be engaged / disengaged with the engagement portion 6c of the first clutch element 6b, a clutch pinion 7b that meshes with the gear 10a of the first wheel 10, and rotation prevention of the clutch operating member 8. Part 8
A projection 7c engaging and disengaging from b, and a large-diameter flange portion 7d are provided. The motor pinion 7 is moved in the direction of engagement with the first clutch element 6b by a clutch operating member 8 described later, and when the engagement / disengagement portion 7a engages with the engagement portion 6c, the rotation of the rotor 6 is stopped. This motor pinion 7
It is configured to be transmitted to. And the rotation is
The information is transmitted to the first vehicle 10 via the clutch pinion 7b. A coil spring 18 is arranged between the motor pinion 7 and the first clutch element 6b, and urges both of them so as to release the engagement between them. For this reason,
When the clutch operating member 8 is not working, the first clutch element 6b and the motor pinion 7 as the second clutch element
Means that the engagement is released and the rotation of the rotor 6 is not transmitted to the motor pinion 7.

A clutch operating member 8 is arranged in contact with the motor pinion 7. The clutch operating member 8 shown in detail in FIG. 6 includes a connecting portion 8a that is fitted and connected to a movable iron core 9a operated by a solenoid 9, a rotation preventing portion 8b that engages and disengages with a protrusion 7c of a motor pinion 7, and a motor. A cam surface for moving the pinion 7 in the thrust direction, that is, a cam surface including a pressing surface 8c, a slope 8d, and a lower surface 8e, a long hole 8f through which the fixed shaft 6d passes, and a rotating shaft 12c of the third wheel & pinion 12 are fitted. A rotation center hole 8g serving as a rotation center, a first arm 8h connecting the rotation center hole 8g to the cam surface, and a cam groove 13 of the output gear 13
d, and a second arm portion 8j connecting the cam projection 8i and the rotation center hole 8g. In addition, a tapered portion 8k that is cut out in a tapered shape is provided on the inner peripheral surface of the rotation center hole 8g so that the clutch operating member 8 can swing. In order to make the clutch operating member 8 swingable, the diameter of the outer end of the rotation center hole 8g is not limited to a tapered shape, but may be a two-stage hole. Also, this clutch operating member 8
Moves in a thrust direction with respect to the fixed shaft 6d as indicated by an arrow L in FIG.

The solenoid 9 for operating the clutch operating member 8 comprises a movable iron core 9a and an electromagnet 9b. One end of the movable iron core 9a is
And the other end thereof is formed so as to face the electromagnet 9b. In addition, a coil spring 19 is placed between the vicinity of one end of the movable core 9a and the base plate 3, and constantly biases the movable core 9a away from the base plate 3, that is, constantly urges the movable core 9a upward in FIG. ing. For this reason, when the solenoid 9 is turned on as shown in FIG. 1, the movable iron core 9a is pushed down in FIG. 1 against the urging force of the coil spring 19, but the solenoid 9 is not energized because the electromagnet 9b is not energized. When 9 is not turned on, the movable iron core 9
a is pushed upward in FIG. 1 and pushes the clutch operating member 8 upward. The movable iron core 9a
Are indicated by arrows M and N in FIG.
Rocks like.

The first wheel 10 in the reduction gear train comprises a gear 10a meshing with the clutch pinion 7b, a pinion portion 10b meshing with the second wheel & pinion 11, and a rotating shaft 10c integrally rotating therewith. . And the gear 10a
1 is provided on the lower surface side thereof with a circumferential projection 10d which abuts against a large-diameter flange portion 7d in order to restrict the upward movement of the motor pinion 7 in FIG. A reverse rotation preventing lever 17 of the motor is disposed between the first wheel 10 and the main plate 3 so as to be rotatable with respect to the rotation shaft 10c, and a tip portion 17a of the lever 17 can be disengaged from the first clutch element 6b. I have. Further, a rubber governor 16 that rotates integrally with the vehicle 10 is provided between the middle base plate 4 and the first case 1. This governor 16 cooperates with the cylindrical wall 1c installed in the first case 1 to constitute a centrifugal brake.
When the governor 16 rotates clockwise in FIGS. 4 and 5, the arm 16a moves outward due to centrifugal force and slides on the cylindrical wall 1c.
That is, the frictional force at that time plays the role of the brake.

The second wheel 11, to which the rotation of the rotor 6 is transmitted from the first wheel 10, includes a gear 11 a meshing with a pinion portion 10 b of the first wheel 10, and a pinion portion 1 meshing with a third wheel 12.
1b and a rotating shaft 11c that rotates integrally therewith.

The third wheel & pinion 12 to which the rotation of the rotor 6 is transmitted from the second wheel & pinion 11 includes a gear 12a which meshes with the pinion portion 11b of the second wheel & pinion 11, a pinion portion 12b which meshes with the output gear 13, and Rotating shaft 1 that rotates together
2c. In addition, on the lower surface side of the gear 12a in FIG. 1, a circumferential projection 12d which abuts against a large-diameter flange portion 7d is provided in order to restrict the upward movement of the motor pinion 7 in FIG. A clutch actuating member 8 is disposed between the third wheel & pinion 12 and the middle base plate 4, and a rotating shaft 12c penetrates a turning center hole 8g of the clutch actuating member 8. The clutch actuating member 8 rotates around the rotating shaft 12c. It is free.

Further, an output gear 13 to which the rotation of the rotor 6 is transmitted from the third wheel & pinion 12 includes a gear portion 13a which meshes with a pinion portion 12b of the third wheel & pinion 12, and a cylindrical portion which fits into an engagement hole of the middle base plate 4. 13b and a rotary output shaft 13c integrally formed therewith. The gear 13
The upper surface side of FIG. 1A is provided with a cam groove 13d into which the cam projection 8i of the clutch operating member 8 is inserted, and a pressing projection 13h for pressing the second arm portion 8j of the clutch operating member 8 are provided. . The cam groove 13d has a narrow groove 13e extending circumferentially at a fixed distance from the center of rotation, and a narrow groove 13e.
13e, a thick groove 13f extending radially outward and a slope 13g connecting the thin groove 13e and the thick groove 13f are provided.

An output pinion 14 disposed between the middle base plate 4 and the first case 1 is attached to the output gear 13 so as to be integrally rotatable. The output pinion 14 is provided with a meshing portion 14a that meshes with the load driving output member 15 over substantially half a circumference.

The output pinion 14 is connected to the rotor 6
The load driving output member 15 to which the rotational force is transmitted is provided with a rack tooth portion 15a that meshes with the meshing portion 14a of the output pinion 14, and when the load driving output member 15 is most protruded from the device as shown in FIG. The sloped pressed portion 15b pressed by the pressing member 20, the load driving portion 15c connected to the load, and the thin portion 1 for smooth sliding.
5d and 15d are provided. The thin portion 15
As shown in FIG. 4B, d and 15 d are provided on both sides of the load driving output member 15 and are pressed by the first case 1. In this manner, when the thin portions 15d, 15d are provided and the portions are sandwiched between the two cases 1, 2, the dimensions of the thin portions 15d, 15d are stable and accurate because of the thin thickness, and therefore the sliding portions 15d, 15d can be used during sliding. Play is reduced. In addition, by providing the thin portions 15d, 15d, the strength of the load driving output member 15 is increased, and warpage and bending can be prevented. Here, the load driving output member 15 is constantly urged by a force F in a direction indicated by an arrow in FIGS. 4 and 5 by a spring (not shown), and the pressing member 20 is also urged by a spring (not shown) in FIGS. It is always biased clockwise.

A terminal 21 for energizing the motor 5 and the electromagnet 9b is connected to the motor 5 and the electromagnet 9b. Also, the first car 10, the second car 11, the third car 12
The gear train connected to the output gear 13 constitutes a reduction gear train, and the reduction gear train is disposed in a space between the main plate 3 and the middle base plate 4. Further, the first case 1 is provided with a discharge protrusion 1d for discharging water that has entered the device to the outside of the device.

Next, the operation of the motor-type driving device configured as described above will be described. The operation will be described on the assumption that the motor-type driving device is used for opening and closing a drain valve (not shown) of the washing machine.

When the drain valve is closed, the load driving output member 15 is in the state of being most protruded from the device as shown in FIG. Load driving output member 15
In FIG. 4, since the force F is constantly acting upward, the drain valve is firmly closed. At this time, the relationship between the first clutch element 6b, the motor pinion 7 serving as the second clutch element, and the clutch operating member 8 is shown in FIG.
It is as shown in. That is, since the solenoid 9 is off and the clutch operating member 8 is separated from the motor pinion 7, the first clutch element 6b and the motor pinion 7 are not engaged.

Next, the motor 5 is energized to open the drain valve, the rotor 6 is rotated, and the electromagnet 9b is energized to turn on the solenoid 9. Then, as shown in FIG. 7B, the clutch operating member 8 approaches the motor pinion 7 and the pressing surface 8c in the cam surface thereof comes into contact with the motor pinion 7. Thereafter, the pressing surface 8c of the clutch operating member 8 further presses down the motor pinion 7 against the urging force of the coil spring 18, and the first clutch element 6b and the motor pinion 7 are engaged as shown in FIG. . Then, the rotation of the rotor 6 is transmitted to the motor pinion 7, the first wheel 10, the second wheel 11, the third wheel 12, the output gear 13, and the output pinion 14 while being sequentially decelerated. As a result, the load driving output member 15 meshing with the output pinion 14 is gradually taken into the apparatus against the urging force F of the spring (not shown) and the urging force of the spring (not shown) of the pressing member 20. For this reason, the drain valve gradually opens. Note that FIG.
7C is instantaneously performed by the instantaneous movement of the movable iron core 9a when the solenoid 9 is turned on, but sometimes the engagement between the engagement portion 6c of the first clutch element 6b and the motor pinion 7 is performed. There may be a situation where the movable iron core 9a cannot operate even though the solenoid 9 is turned on, when the engaging and disengaging portion 7a abuts. However, even in such a case, a situation occurs in which the both ends 6c and 7a always come off during one rotation of the rotor 6, so that at least the time of one rotation of the rotor 6 elapses, the state of FIG. That is, the clutch is engaged.

When the load driving output member 15 is gradually taken into the apparatus, the output gear 13 rotates clockwise in FIG.
The cam projection 8i gradually moves in the narrow groove 13e of the cam groove 13d. Then, the cam projection 8i is shown in FIG.
At the position indicated by the two-dot chain line, that is, immediately before the load driving output member 15 is completely taken into the device, the pressing projection 13h of the output gear 13 presses the second arm portion 8j of the clutch operating member 8. Begin to. The pressing causes the clutch operating member 8 to start rotating counterclockwise in FIG. 3B. Then, the biasing force of the coil spring 18 and the slope 8
By the action of d, the clutch operating member 8 is further instantaneously rotated in the counterclockwise direction. Therefore, the contact position of the motor pinion 7 with the clutch operating member 8 is changed from the pressing surface 8c to the lower surface via the slope 8d. To 8e instantly,
The engagement between the motor pinion 7 and the first clutch element 6b is instantaneously released, and the state shown in FIG. At this time, the load driving output member 15 is completely taken into the device, and the relationship between the output gear 13 and the clutch operating member 8 is shown in FIG.
State. This instantaneous operation causes a problem that the clutch is gradually disengaged, for example, the engaging portion 6c of the rotor 6.
And the occurrence of abrasion or chipping of the engagement / disengagement portion 7a of the motor pinion 7 can be prevented.

In the state shown in FIG. 7D, the solenoid 9 remains on, but the motor pinion 7 is turned on.
Are disengaged from the first clutch element 6b, the torque of the rotor 6 is not transmitted to the load driving output member 15. At this time, the rotor 6 continues to rotate. On the other hand, since the spring urging force F is constantly applied to the load driving output member 15, the load driving output member 15 tends to move to the original position, that is, the direction to close the drain valve. However, since the rotation preventing portion 8b of the clutch operating member 8 engages with the projection 7c of the motor pinion 7, the motor pinion 7 cannot rotate. For this reason, the movement of the load driving output member 15 connected to the motor pinion 7 via the gear train is prevented, and the state shown in FIG. 5 is maintained. As a result, the drain valve is held in the open state, and the drain is continued.

Next, the operation when the drain valve is to be closed after the drain is completed will be described. First, the solenoid 9
Turn off. Then, the clutch operating member 8 separates from the motor pinion 7. Therefore, as shown in FIG. 7E, the rotation preventing portion 8b of the clutch operating member 8 does not engage with the projection 7c of the motor pinion 7, and the motor pinion 7 becomes rotatable. As a result, the load driving output member 15 connected to the motor pinion 7 via the gear train starts to move to the original position, that is, the direction in which the drain valve is closed, by the spring urging force F. This load driving output member 15
Is transmitted to the output pinion 14, the output gear 13, the third wheel 12, the second wheel 11, and the first wheel 10 sequentially. At this time, the gear train from the output gear 13 to the first car 10 is a speed-up gear train, and the first car 10 and the rubber governor 16 that rotates integrally with the first car 10 are shown in FIGS. Rotate clockwise at high speed. Then the arm 16
When a moves outward due to centrifugal force and slides on the cylindrical wall 1c, the brake functions. Therefore, the return movement of the load driving output member 15 to the original position becomes slow. Although the power supply to the motor 5 is turned off at the same time when the solenoid 9 is turned off, the motor 5 may be used for driving another load without being turned off.

On the other hand, when the output gear 13 rotates counterclockwise in FIG. 3B, the cam projection 8i of the clutch operating member 8 in the state of FIG. It gradually moves along the slope 13g in the thick groove 13f and enters the narrow groove 13e. Based on this operation, the clutch operating member 8 rotates clockwise in FIG. 3B, and the relationship between the motor pinion 7 and the clutch operating member 8 is as shown in FIG.

Further, when the load driving output member 15 is returned and moved immediately before the original position (the state shown in FIG. 4), the pressing member 20 comes into contact with the sloped pressed portion 15b, which is not shown. The load driving output member 15 is pressed by the biasing force of the spring, and the load driving output member 15 is firmly returned to the original position. That is, the load driving output member 15 is provided with a spring biasing force F (not shown).
In addition to the above, the spring is biased by the pressing member 20, which is the last pressing, and is firmly held at a predetermined position. Therefore, the drain valve is securely closed without losing the water pressure.

In this embodiment, the motor pinion 7 is provided with a large-diameter flange portion 7d, and the circumferential protrusion 10d of the first wheel 10 is provided.
The position of the motor pinion 7 is restricted by contact of the third wheel 12 with the circumferential protrusion 12d of the third wheel 12 (FIG. 1).
Therefore, there is no need to specially provide a position regulating member for the motor pinion 7. When the collar portion 7d is provided, the installation position of the engagement / disengagement portion 7a capable of engaging / disengaging with the engagement portion 6c of the first clutch element 6b can be set to a position with a large radius as necessary. When the position radius is increased, the reaction force to the solenoid 9 at the time of engagement is reduced, which is preferable.

The above embodiment is an example of a preferred embodiment of the present invention, but the present invention is not limited to this embodiment, and various modifications can be made without departing from the gist of the present invention. For example, in the above-described embodiment, the load driving output member 15 has a rack structure, and the driving is performed by the output pinion 14. However, it is described in Japanese Utility Model Publication No. 5-17536, which is a known example described above. A combination of a pulley and a wire may be used.
As shown in FIG. 8 of 942, a string body or a flexible body having elasticity may be connected to the tip of the rack. Further, other structures may be appropriately employed.

For example, even if the load driving output member 15 has a rack structure as in the above-described embodiment, a structure in which a wire is provided at the tip end of the load driving output member 15 allows the drainage operated by operating the wire. Can be attached to a valve or the like. Specifically, as shown in FIG. 10A, a structure in which a wire fastening tool 24 is attached to the load driving unit 15c and the wire 26 is fastened to the wire fastening tool 24 can be adopted. According to this structure, by using the lever type load driving output member 15 shown in the above-described embodiment, the wire 2
6, the same load driving output member 15 can be used irrespective of the form of the device serving as the load, and the present motor type driving device can be manufactured efficiently. Further, as shown in FIG. 10B, a structure may be employed in which a wire fastening hole 15e is provided at the tip of the load driving output member 15, and the wire 26 is fastened to the wire fastening hole 15e. According to this structure, since members such as the load driving unit 15c are not required, the number of components can be reduced.

The technique of providing a projection 2c on the outer surface of the case 2 for preventing water from entering the case dividing portion X is a technique other than the motor-type driving device shown in the embodiment, for example, the known example described above. The present invention can be applied to a certain type of motor driving system such as 5-17536 or various types of motor-driven devices having no clutch. The load driving output member 15 is arranged on one side of the middle base plate 4, and the gear train is arranged on the other side of the middle base plate 4, and the load driving output member 15 has thin portions 15 d, 1.
The technique of providing 5d and sandwiching the thin portions 15d, 15d in a case that can be divided can be similarly applied to various motor-type driving devices. Here, instead of two thin portions, one or three or more thin portions may be used. Further, the technique of providing a projection on the outer surface of the case to prevent water from entering from the case division portion can be applied to various case division type devices that do not use a motor.

[0060]

The structure of the output pinion 14 and the load driving output member 15 may be a rack 35 having teeth 34a of a non-circular gear 34 and teeth 35a meshing with the teeth 34a, as shown in FIG. With such a structure, the rack 35 shown in FIG.
At the start of the downward movement, move quickly with a small force,
Near the end of movement, you can move slowly with great power. For this reason, a small force is required at the beginning of opening such as opening and closing of the shutter and the drain valve of the ventilation fan, and this is suitable for a device that requires a large force at the end of opening. Further, as shown in FIG. 9, using a non-circular pulley 44 and a wire 45,
At the start of the downward movement of the wire 45 in FIG. 9, the wire 45 may be moved slowly with a large force, and may be moved quickly with a small force near the end of the movement. Such a configuration is suitable for a device in which the load is reduced as the driven body moves. 8 and 9 indicate the non-circular gear 34, the rack 35, and the non-circular pulley 44, respectively.
And the movement of the wire 45.

In the above-described embodiment, the first clutch element constituting the clutch is provided on the rotor, and the second clutch element is a motor pinion slidably provided on the rotating shaft of the rotor. You may make it provide a clutch in the part of 10 or the 2nd wheel 11. Further, the pressed portion 15b of the load driving output member 15 may be cut out at the middle instead of the rear end of the member 15, and the portion may be a pressed portion, and the pressing member 20 may be used to press the pressed portion 15b. Further, the pressing member 20 may be formed by extending the shaft of the gear train, and the gear shaft and the pressing member 20 may be used.

Further, the clutch operating member 8 may have the structure shown in FIGS. That is, the clutch actuating member 8 is used to move the motor pinion 7 in a thrust manner, the connecting portion 8a having a long hole engaging with the movable iron core 9a, the rotation preventing portion 8b engaging with and disengaging from the projection 7c of the motor pinion 7. A cam surface including a press-down surface 8c, an inclined surface 8d, and a lower surface 8e, and a long hole 8f through which the fixed shaft 6d passes.
And a rotation center hole 8g into which the rotation shaft 12c of the third wheel & pinion 12 is fitted and serving as a rotation center, a cam projection 8i which enters the cam groove 13d of the output gear 13, and a periphery of the rotation center hole 8g. A fulcrum portion 8l and a convex portion 8 provided on a side surface opposite to the cam surface
m. The rotation center hole 8g is
A two-step hole having a step in which the diameter of the hole on one side is increased so that the clutch operating member 8 can swing freely. Further, in order to make the clutch actuating member 8 swingable, the structure is not limited to the shape of the two-stage hole, but may be a tapered notch.

Then, as shown in FIGS. 14 and 15,
The fulcrum portion 8l is held between the end face of the third wheel & pinion 12 as a holding member and the middle base plate 4. 11 to FIG.
As shown above, the connecting portions 8a are provided on both sides of the fulcrum portion 8l.
And a supporting ridge 8n extending substantially in parallel with the rotation center hole 8g. The operating surface 8p is formed by a plane substantially parallel to the connecting portion 8a and including the supporting ridge 8n. In this embodiment, as shown in FIG.
While the movable iron core 9a is not swinging, the holding members 12, 4
There are provided two sets of operating surfaces, that is, substantially parallel operating surfaces 8p, 8p, which are in surface contact with each other, and substantially parallel operating surfaces 8p, 8p, in which the holding members 12, 4 are in surface contact with the movable core 9a swinging. ing.

According to this structure, when the clutch operating member 8 is swung by the movable iron core 9a, the fulcrum portion 8l is sandwiched between the end face of the third wheel & pinion 12 and the middle base plate 4, so that the supporting ridge portion is provided. It is rocked around 8n. For this reason, the connecting portion 8
The center of swing does not change regardless of the position at which the movable core 9a engages with the movable iron core 9a. Therefore, even if the movable iron core 9a is attracted to the solenoid 9 when the movable iron core 9a is engaged with the end of the connecting portion 8a, the supporting ridge 8n is not swung so as to be inclined, and the movable iron core 9a is not tilted. Is transmitted to the clutch operating member 8 efficiently.

Since each operating surface 8p is in surface contact with the end face of the third wheel & pinion 12 and the middle base plate 4, the clutch operating member 8 is rotated about the rotation shaft 12c of the third wheel & pinion 12. In addition, the rotation is stably and smoothly performed without twisting.

Note that the fulcrum portion 8l may have another structure as long as the support ridge portion 8n protrudes from another portion. For example, the fulcrum portion 8l may be formed in a substantially flat plate shape, and only the support ridge portion 8n may be protruded and formed substantially linearly.

In the structure of the clutch operating member 8 described above, the rotation center hole 8g, the contact portion between the motor pinion 7 and the cam surface, the engagement portion between the movable core 9a and the connecting portion 8a, and the movable core 9a The suction unit and the suction unit can be located substantially in the same plane. According to this, when the movable iron core 9a is swung and the clutch operating member 8 engaged with the distal end of the movable iron core 9a is swung about the support ridge 8n, the movable iron core 9a and the clutch operating member 8 is prevented from tilting and swinging.

That is, with regard to the clutch operating member 8, the connecting portion 8a serving as the point of force, the support ridge 8n serving as the fulcrum, and the cam surface serving as the point of action swing in substantially the same plane. Swing in a twisted direction other than the swing direction is not performed. Further, the movable iron core 9a is not twisted and rocked because the clutch operating member 8 to be engaged is not twisted and rocked. Therefore, according to this structure, since the movable iron core 9a is not attracted to the solenoid 9 while being inclined, the occurrence of a buzzer sound due to the movable iron core 9a being attracted in an inclined and unstable state is prevented. can do.

In the above-described embodiment, the solenoid 9 is made up of the electromagnet 9b. However, as shown in FIG. 15, this electromagnet 9b is made up of an iron core 9c and a bobbin cover 9b.
d and a coil 9e wound around the bobbin cover 9d.
And an L-shaped iron core 9f attached to the outside of the bobbin cover 9d. According to this structure, the movable core 9 is attached to the support 2e of the second case 2 during assembly.
a, the solenoid 9 is mounted, and the first case 1 is attached.
It is clamped by the mold core 9f. Therefore, the movable iron core 9
a is reliably supported and does not move in the longitudinal direction.

Further, the solenoid 9 inside the first case 1
In the case where the holding projection 1e is formed in the vicinity of
The solenoid 9 is pressed against and fixed to the second case 2 by the holding projection 1e. According to this structure, there is no play in the mounting of the solenoid 9, the movable core 9a can be reliably attracted, and the amount of swing of the movable core 9a can be maintained substantially constant.

In the case where a structure is provided in which the space between the iron core 9c of the solenoid 9 and the bottom of the second case 2 opposed thereto is larger than the operating range of the movable core 9a,
a can be swung over a wider range than the normal operation range. For this reason, at the time of assembling the motor type driving device, after the movable iron core 9a and the solenoid 9 are mounted on the second case 2, the movable iron core 9a is engaged with the clutch operating member 8 at the distal end of the movable iron core 9a. 9a can be raised significantly, and these engagements can be easily performed.

In this structure, if the movable iron core 9a swings greatly after the completion of the assembly of the motor type driving device,
The movable core 9a may not be attracted to the solenoid 9, and it is necessary to limit the swingable range to a range where proper operation is performed.
It is desirable that m be in contact with the middle base plate 4. According to this structure, the swing range of the clutch operating member 8 is limited, and the movable iron core 9a is not swung beyond the minimum necessary range for operation, so that the suction by the solenoid 9 is reliably performed.

Further, a lead 9 g is provided on the coil 9 e of the solenoid 9, and its leading end is soldered to the fastener 21 a of the terminal 21. Here, since the lead wire 9g is wired along the inner surface of the bobbin cover 9d,
Protected by the bobbin cover 9d, short-circuit and disconnection due to contact with other members are prevented. Further, when the lead wire 9g is fastened so as to be covered with the adhesive, there is no play in the lead wire 9g between the coil 9e and the fastener 21a, and the lead wire 9g is caught by something and is disconnected. Things,
Conduction of the lead wires 9g with each other due to the entry of water droplets is prevented.

[0075]

As is apparent from the above description, in the motor type driving apparatus according to the first aspect of the present invention, the clutch operating member has three modes, namely, engagement of the first and second clutch elements,
Since the first and second clutch elements are disengaged and the rotation of the clutch pinion is prevented and the first and second clutch elements are disengaged and the clutch pinion can rotate, the output for the load drive is performed. When the member is held at a predetermined position, it is not necessary to stop the power supply to the motor, and no special switch is required. As a result, since the on / off position adjustment of the switch is not required, productivity and reliability can be improved. Also, the number of parts can be reduced,
The cost can be reduced. Further, since the rotation of the rotor can be continued, the motor is not overloaded. In addition , a mode in which the first and second clutch elements are disengaged and the rotation of the clutch pinion is prevented, and a rotation preventing portion for preventing the rotation of the second clutch element is provided in the clutch operating member, so that both clutch elements are disengaged. Is achieved by engaging the rotation preventing portion with the second clutch element, preventing the rotation of the second clutch element and holding the load driving output member at a predetermined position. Three modes can be realized with a simple structure.

Further, in the motor type driving apparatus according to the second aspect of the present invention, even if the clutch is disengaged, the rotation preventing portion of the clutch operating member engages with the second clutch element, thereby preventing the rotation of the second clutch element. Therefore, the load driving output member is held at the predetermined position. Therefore, there is no need to stop energizing the motor, and no special switch is required. As a result, since the on / off position adjustment of the switch is not required, productivity and reliability can be improved. Also,
The number of parts can be reduced, and the cost can be reduced. Further, since the rotation of the rotor can be continued, the motor is not overloaded.

In addition, according to the third aspect of the present invention, the first clutch element constituting the clutch is provided on the rotor, and the second clutch element is a motor pinion slidably provided on the rotating shaft of the rotor. Is a reduction gear train, so
The clutch can be operated at a place where the force from the load driving output member is the smallest. As a result, members that operate the clutch, such as the clutch operating member, can be reduced in size, and when a solenoid is used, noise generated therefrom can be reduced.

Further, in the motor-type driving device according to the fourth aspect of the invention, even if water is transmitted from the device side, the water is blocked by the projection on the outer surface of the case and falls directly downward from the projection, so that the case is divided. It does not flow down across the. For this reason, it is possible to largely prevent water from entering the device.

In the motor-type driving device according to the fifth aspect of the present invention, the operation check can be performed in a state where the gear train of the motor-type driving device is arranged on one side of the middle base plate. On the other hand, on the other side of the middle base plate, load driving output members having different operation amounts and the like can be appropriately arranged according to user requirements and specifications, so that it is possible to quickly respond to user requests and specification changes. it can.

Further, in the motor type driving apparatus according to the sixth aspect of the present invention, since the thin portion which is easy to obtain dimensional accuracy is pressed by the case, the play between the load driving output member and the case is reduced, and the load driving The output member can perform smooth sliding.

[0081] Further, in the motor driving device of the invention of claim 7, and the fulcrum portion of the clutch actuating member, and a suction portion of the solenoid, and the engagement portion of the clutch actuating member and the movable iron core, the first clutch element or the second Since the clutch element and the engaging portion of the clutch operating member are arranged in substantially the same plane, the swing of the clutch operating member and the movement of the movable core are performed without tilting or twisting. Therefore, the moving amount of the movable core can be transmitted to the clutch operating member without loss, and the clutch operating member can transmit the transmitted moving amount of the movable core to each clutch element without waste. . Further, since the movable iron core is firmly attracted to the solenoid, it is possible to prevent the buzzer sound from being generated due to the movable iron core being tilted and instablely attracted.

[0082] Then, in the motor driving device of the invention of claim 8, during assembly of the motor driving device, when engaging the clutch actuating member to the movable iron core, it is engaged by moving the movable iron core increases Therefore, the clutch operating member can be easily engaged. Therefore, assembling of the motor-type driving device can be easily performed, and the assembling work can be sped up.

Further, in the motor type driving apparatus according to the ninth aspect of the present invention, since the clutch operating member is swung about the support ridge, the position of the movable iron core and the clutch operating member is limited. Instead, the swing center of the clutch operating member is substantially constant. Therefore, it is possible to more reliably prevent the clutch operating member from tilting and twisting when swinging.

In the motor type driving apparatus according to the tenth aspect of the present invention, since the operating surface of the fulcrum of the clutch operating member is in surface contact with the holding member, the clutch operating member is in contact with the swing surface about the fulcrum. When rotating in a substantially right angle direction, the rotation is performed while the surface contact is maintained. Therefore, stable and smooth rotation without twisting of the clutch operating member without tilting is performed, and the operation is reliably performed. Further, by providing an operating surface corresponding to the angle at which the clutch operating member swings, the operating surface corresponding to each operating state is clamped, and a reliable operation is always performed.

[Brief description of the drawings]

FIG. 1 is a developed sectional view of a main part of an embodiment of the present invention.

FIG. 2 is a sectional view of a main part of the embodiment of the present invention.

FIG. 3 is a plan view of a main part of the embodiment of the present invention from which a middle base plate is removed.

FIG. 4A is a plan view of a main part of the embodiment of the present invention with the first case removed, and is a diagram when the load driving output member is most protruded outside the apparatus; FIG. FIG. 4 is a cross-sectional view taken along the line BB of FIG.

FIG. 5 is a plan view of a main part of the embodiment of the present invention with the first case removed, showing a state where the load driving output member is most inserted into the apparatus.

FIG. 6 is a perspective view of a clutch operating member used in the embodiment of the present invention.

FIG. 7 is a diagram for explaining the operation of the main part of the present invention;
FIG. 9 is an operation explanatory diagram showing a positional relationship among a rotor, a motor pinion, and a clutch operating member for each operation.

FIG. 8 is a diagram showing an embodiment in which a member that rotates integrally with the output gear is a non-circular gear.

FIG. 9 is a diagram showing an embodiment in which a member that rotates integrally with the output gear is a non-circular pulley.

FIGS. 10A and 10B are plan views showing the shape of the distal end of the load driving member. FIG. 10A shows a case where a wire fastener is used, and FIG.

FIG. 11 is a perspective view of a clutch operating member used in another embodiment.

FIG. 12 is a perspective view of the clutch operating member shown in FIG. 11 at another angle.

FIG. 13 is a sectional view of a fulcrum of a clutch operating member.

FIG. 14 is a plan view of a main part of another embodiment with the middle base plate removed.

FIG. 15 is a sectional view of a main part of another embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 First case 2 Second case 3 Main plate 4 Middle base plate (clamping member) 5 Motor 6 Rotor 6b First clutch element 6c Engagement part 7 Motor pinion (second clutch element) 7a Disengagement part 7b Clutch pinion 8 Clutch operating member 8b Rotation prevention part 8l Support point part 8n Support ridge part 8p Operating surface 9 Solenoid 9a Movable iron core 10 First wheel (gear train) 11 Second wheel (gear train) 12 Third wheel (gear train, clamping member) 13 Output gear (gear train) 14 Output pinion 15 Output member for load drive

Claims (10)

(57) [Claims] A first clutch element rotatably driven by rotation of a rotor of the motor, and a first engaging / disengaging portion capable of engaging and disengaging an engaging portion provided on the first clutch element. A two-clutch element, a clutch actuating member for engaging and disengaging an engaging part of the first clutch element and a disengaging part of the second clutch element, and teeth meshing with a clutch pinion provided on the second clutch element In a motor drive device including a wheel train and a load driving output member driven by receiving rotation of the gear train, engagement of the first and second clutch elements with the clutch operating member; The first and second clutch elements are disengaged and the rotation of the clutch pinion is prevented, and the first and second clutch elements are disengaged and the rotation of the clutch pinion is performed in three modes. In addition, a mode in which the first and second clutch elements are disengaged and the rotation of the clutch pinion is prevented, and a rotation prevention unit that prevents the rotation of the second clutch element is provided in the clutch operating member, When the two clutch elements are disengaged, the rotation preventing portion is engaged with the second clutch element, and the rotation of the second clutch element is prevented, so that the load driving output member can be held at a predetermined position. A motor-type driving device characterized by the above. 2. A motor comprising: a motor; a first clutch element rotatably driven by rotation of a rotor of the motor; and an engaging / disengaging portion capable of engaging and disengaging an engaging portion provided on the first clutch element. A two-clutch element, a clutch actuating member for engaging and disengaging an engaging part of the first clutch element and a disengaging part of the second clutch element, and teeth meshing with a clutch pinion provided on the second clutch element In a motor-type driving device having a wheel train and a load driving output member driven by rotation of the gear train, the clutch operation
A rotation preventing member for preventing rotation of the second clutch element
The provided section, when said two clutch element is disengaged, the rotation preventing portion engaged with the second clutch element, capable of holding the second clutch element the load driving output member to prevent rotation of the position A motor-type driving device, characterized in that: 3. The method according to claim 2, wherein the first clutch element is provided on the rotor, the second clutch element is a motor pinion slidably provided on a rotating shaft of the rotor, and the gear train is a reduction gear train. The motor-type driving device according to claim 1 or 2, wherein: 4. A device according to claim 1, further comprising a dividable case for covering the internal device, and a projection for preventing water from entering from the division of the case on an outer surface of the case, which is an upper side when the apparatus is mounted. motor driving apparatus according to any one of claims 1 to 3. The method according to claim 5, wherein the load driving output member on one side of the middle base plate, the motor according to any of claims 1 to 4, characterized in that disposed respectively the gear train to the other side of the middle base plate Drive. 6. The thin portion provided in the load driving output member, the motor driving apparatus according to any one of claims 1, characterized in that sandwich the thin-walled portion is divisible case to 5. 7. A movable iron core comprising: a solenoid; and a movable iron core to which the solenoid can be attracted, the movable iron core being engaged with the clutch operating member, a fulcrum portion being provided on the clutch operating member, and the movable iron core moving. Thus, the clutch operating member is operated by swinging about the fulcrum, and the fulcrum of the clutch operating member, the suction portion of the solenoid, the engagement of the clutch operating member and the movable iron core and parts, according to claim 1, characterized in that disposed on the first clutch element or the second clutch element and the substantially flush with the engaging portion of the clutch actuating member to claim 6 Motor drive device. 8. The motor type driving device according to claim 7 , wherein a movable range of the movable iron core is larger than a minimum necessary range for operating the clutch operating member. 9. A supporting ridge portion substantially parallel to an engaging portion of the clutch operating member and the movable iron core is formed at a fulcrum portion of the clutch operating member, and the holding fulcrum portion is held while being in contact with the supporting ridge portion. 9. The motor-type driving device according to claim 7 , wherein a member is provided, and when the clutch operating member is operated, the member swings around the support ridge. 10. A movable iron core comprising: a solenoid; and a movable iron core to which the solenoid can be attracted, the movable iron core being engaged with the clutch operating member, a fulcrum portion being provided on the clutch operating member, and the movable iron core moving. By oscillating the clutch operating member about the fulcrum by operating,
A plurality of operating surfaces formed by planes substantially parallel to the clutch operating member and the engaging portion of the movable iron core are formed at different angles from each other at the fulcrum portion, and the fulcrum portion is sandwiched while being substantially in contact with these operating surfaces. The motor-type drive device according to any one of claims 1 to 9 , further comprising a holding member that performs the operation.