CN111164862A - Motor unit and drive device - Google Patents
Motor unit and drive device Download PDFInfo
- Publication number
- CN111164862A CN111164862A CN201880064182.5A CN201880064182A CN111164862A CN 111164862 A CN111164862 A CN 111164862A CN 201880064182 A CN201880064182 A CN 201880064182A CN 111164862 A CN111164862 A CN 111164862A
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- China
- Prior art keywords
- lock pin
- speed reducer
- motor unit
- cam follower
- output shaft
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 41
- 230000005540 biological transmission Effects 0.000 claims abstract description 4
- 230000008878 coupling Effects 0.000 claims description 16
- 238000010168 coupling process Methods 0.000 claims description 16
- 238000005859 coupling reaction Methods 0.000 claims description 16
- 230000002093 peripheral effect Effects 0.000 description 9
- 239000000758 substrate Substances 0.000 description 9
- 238000005096 rolling process Methods 0.000 description 8
- 239000011347 resin Substances 0.000 description 5
- 229920005989 resin Polymers 0.000 description 5
- 238000005253 cladding Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
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Classifications
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- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
- E06B9/56—Operating, guiding or securing devices or arrangements for roll-type closures; Spring drums; Tape drums; Counterweighting arrangements therefor
- E06B9/68—Operating devices or mechanisms, e.g. with electric drive
- E06B9/72—Operating devices or mechanisms, e.g. with electric drive comprising an electric motor positioned inside the roller
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- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
- E06B9/56—Operating, guiding or securing devices or arrangements for roll-type closures; Spring drums; Tape drums; Counterweighting arrangements therefor
- E06B9/68—Operating devices or mechanisms, e.g. with electric drive
- E06B9/74—Operating devices or mechanisms, e.g. with electric drive adapted for selective electrical or manual operation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
- F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
- H02K7/116—Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Power Engineering (AREA)
- Mechanical Engineering (AREA)
- Retarders (AREA)
- Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)
- Transmission Devices (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The motor unit has: an output shaft extending along a central axis; a speed reducer connected to the output shaft; a switching mechanism provided in the speed reducer and switching a power transmission state between the output shaft and the motor in accordance with an axial movement of the lock pin; a motor connected to the reducer; and a position locking mechanism connected to the lock pin and maintaining an axial position of the lock pin. The position lock mechanism includes: a connecting rod connected to the locking pin on the side opposite to the speed reducer; a coil spring provided on the connecting rod side of the lock pin and pressing the lock pin in the axial direction; and a heart cam device for moving the connecting rod in the axial direction.
Description
Technical Field
The invention relates to a motor unit and a driving device.
Background
Conventionally, a drive device having a brake release mechanism is known as a drive device used for opening and closing an electric roller shutter (see patent document 1). Such a brake release mechanism is used to rapidly open the roller shutter manually at an emergency time such as a power failure, a trouble, or a disaster.
Documents of the prior art
Patent document
Patent document 1: japanese patent laid-open publication No. 2006-097267
Disclosure of Invention
Problems to be solved by the invention
However, in the conventional drive device, in order to reduce the load at the time of brake release, a mechanism for reducing the torque is disposed radially outward of the reduction gear, and therefore, there is a problem that the entire device becomes large.
In view of the above-described problems, an object of the present invention is to provide a motor unit and a drive device capable of switching a coupling state of an output shaft and a motor with a small force without increasing the size of the device.
Means for solving the problems
A motor unit according to one embodiment of the present invention includes: an output shaft extending along a central axis; a speed reducer coupled to the output shaft; a motor connected to the speed reducer; a switching mechanism provided in the speed reducer and configured to switch a power transmission state between the output shaft and the motor in accordance with an axial movement of the lock pin; and a position lock mechanism connected to the lock pin and maintaining an axial position of the lock pin, the position lock mechanism having: a link connected to a side of the locking pin opposite to the speed reducer; a coil spring provided on the link side of the lock pin and pressing the lock pin in an axial direction; and a heart cam device that is coupled to the coupling rod and moves the coupling rod in the axial direction.
A driving device according to one embodiment of the present invention includes: the motor unit described above; a cylindrical unit case that houses the motor unit and extends in an axial direction; and a cylindrical rotary drum disposed radially outside the unit case and coupled to the output shaft.
Effects of the invention
According to an embodiment of the present invention, there are provided a motor unit and a drive device capable of switching a coupling state of an output shaft and a motor with a small force.
Drawings
Fig. 1 is a partial sectional view of the rolling shutter device according to the present embodiment as viewed from the front side.
Fig. 2 is a perspective view showing the motor unit of the present embodiment.
Fig. 3 is a perspective view showing a part of the motor unit of the present embodiment.
Fig. 4 is a sectional view showing a schematic structure of the speed reducer.
Fig. 5 is a perspective view showing the structure of the main portion of the speed reducer.
FIG. 6 is a view showing a schematic structure of a position lock mechanism
Fig. 7 is a view showing a schematic configuration of the heart cam device.
Fig. 8 is a view of the cam portion as viewed from the front side.
Detailed Description
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
In the XYZ coordinate system shown in each figure, the Z-axis direction is the up-down direction. The X-axis direction and the Y-axis direction are horizontal directions perpendicular to the Z-axis direction, and are directions perpendicular to each other. In the following description, a direction parallel to the Z-axis direction is referred to as "vertical direction Z". The positive side in the Z-axis direction is referred to as "upper side", and the negative side in the Z-axis direction is referred to as "lower side". The terms "vertical direction", "upper side" and "lower side" are only names for describing relative positional relationships of the respective parts, and the actual positional relationships and the like may be positional relationships other than the positional relationships and the like indicated by the names.
As shown in fig. 1, a drive device 10 of the present embodiment is a drive device for a rolling shutter device 1. The rolling shutter device 1 includes a driving device 10 and a rolling shutter 80 that is lifted and lowered by the driving device 10. The drive device 10 includes a motor unit 10a, a rotary cylinder 11, a coupling member 12, and a bearing 70.
The motor unit 10a is cylindrical as a whole extending in one direction. One end of the motor unit 10a is fixed to the wall W via a fixing member Wa. The motor unit 10a includes an output shaft 34, a housing (unit housing) 20, a motor 30, a reduction gear 32, a brake device 33, a connection switching unit (position lock mechanism) 60, a circuit board 50, a plurality of electronic components 51 and 52, and a power supply device 40.
The output shaft 34 is arranged along a central axis J extending in one direction. In the present embodiment, the central axis J extends in a direction parallel to the X-axis direction among the horizontal directions. In the following description, a direction parallel to the central axis J, that is, a direction parallel to the X-axis direction is referred to as an "axial direction X", a radial direction about the central axis J is referred to as a "radial direction", and a circumferential direction about the central axis J is referred to as a "circumferential direction". In the description of the arrangement relationship of the respective parts of the motor unit 10a, the side of the motor unit 10a fixed to the wall W in the axial direction X, i.e., the negative side in the X-axis direction, is referred to as the "base end side", and the opposite side to the base end side in the axial direction X, i.e., the positive side in the X-axis direction, is referred to as the "tip end side".
The housing 20 extends in the axial direction X. As shown in fig. 1 to 3, in the present embodiment, the housing 20 has a cylindrical shape centered on the central axis J. In the present specification, the case where the housing is cylindrical includes a case where the housing is strictly cylindrical and a case where the housing is substantially cylindrical. The case is substantially cylindrical, and includes a case where a part of the outer peripheral surface of the case is a flat surface. The housing 20 houses the motor 30, the decelerator 32, the brake device 33, the position lock mechanism 60, the circuit board 50, the electronic components 51 and 52, and the power supply device 40.
As shown in fig. 2, the housing 20 includes an upper housing 21, a lower housing 22, and a cover 23. The upper case 21 has an upper bent plate portion 21a and a pair of upper flat plate portions 21 b. The upper curved plate portion 21a is plate-shaped extending in the axial direction X and curved in the circumferential direction. The upper bent plate portion 21a has a semicircular arc shape protruding upward when viewed in the axial direction X. The pair of upper flat plate portions 21b are flat plate-shaped and extend downward from both circumferential ends of the upper bent plate portion 21a, i.e., from the lower end of the upper bent plate portion 21a in the present embodiment. The upper flat plate portion 21b extends from the end portion on the base end side to the end portion on the tip end side of the upper bent plate portion 21a along the axial direction X. In fig. 3, the upper case 21 is not shown.
As shown in fig. 3, the lower case 22 has a lower bent plate portion 22a and a pair of lower flat plate portions 22 b. The lower curved plate portion 22a is a plate-like portion extending in the axial direction X and curved in the circumferential direction. The lower bent plate portion 22a has a semicircular arc shape protruding downward when viewed in the axial direction X. The pair of lower flat plate portions 22b are flat plate-shaped and extend upward from both circumferential ends of the lower bent plate portion 22a, i.e., from the upper end of the lower bent plate portion 22a in the present embodiment. The lower flat plate portion 22b extends from the end portion on the base end side to the end portion on the tip end side of the lower bent plate portion 22a along the axial direction X. The lower flat plate portion 22b has a protruding flat plate portion 22c, and the protruding flat plate portion 22c is disposed to protrude radially inward from the other portion of the lower flat plate portion 22 b.
The upper flat plate portion 21b and the lower flat plate portion 22b are overlapped in the radial direction and fixed by a screw. Thus, the upper case 21 and the lower case 22 are fixed to each other, and the cylindrical case 20 which is open on both sides in the axial direction X is configured.
The lid portion 23 is a disk-shaped member. The lid 23 is disposed at the end of the base end side of the inside of the cylinder portion constituted by the upper housing 21 and the lower housing 22. The lid 23 closes the opening on the base end side of the cylinder. The cover 23 is fixed to the inner surface of the lower case 22 by screws. As shown in fig. 1, the lid portion 23 is fixed to the fixing member Wa.
As shown in fig. 3, the circuit board 50 is disposed in a portion of the base end side inside the housing 20. The circuit board 50 has a rectangular plate shape extending in the axial direction X. The substrate surface 50a of the circuit board 50 is perpendicular to the vertical direction Z. The substrate surface 50a is the upper surface of the circuit board 50. A printed wiring not shown is provided on the substrate surface 50 a.
The power supply device 40 supplies power to the motor 30 and the circuit board 50. The power supply device 40 is connected to an external power supply not shown via a power supply cable 44 shown in fig. 2. The power supply device 40 is, for example, a transformer that converts the voltage of electric power supplied from an external power supply. As shown in fig. 1, the power supply device 40 is disposed in a proximal end side portion of the housing 20. In the present embodiment, the substrate surface 50a and the power supply device 40 face each other with a gap therebetween in the vertical direction Z. The power supply device 40 is fixed to the housing 20 via a heart cam device 61 described later.
A plurality of electronic components 51, 52 are mounted on the circuit board 50. The electronic component 51 is mounted on the substrate surface 50a at a position different from the power supply device 40 in the axial direction X. In the present embodiment, the electronic component 51 is mounted on the substrate surface 50a at a position closer to the front end side than the power supply device 40.
For example, the electronic component 51 is a component for wireless communication. For example, the electronic component 51 is an electronic component for the motor unit 10a to receive a signal transmitted from the outside. This enables remote operation of the motor unit 10 a.
The electronic component 52 is disposed on a portion of the substrate surface 50a facing the power supply device 40. That is, at least a part of the plurality of electronic components is disposed on a portion of the substrate surface 50a facing the power supply device 40. Therefore, the substrate surface 50a can be effectively used.
The motor 30 is disposed in a portion of the front end side inside the housing 20. The motor 30 has a motor shaft 31. The motor shaft 31 extends in the axial direction X around the center axis J, for example. The motor shaft 31 is connected to a speed reducer 32. That is, the speed reducer 32 is coupled to the motor 30. The end portion on the tip end side of the motor 30 is fixed to the end portion on the base end side of the speed reducer 32. In the present embodiment, the motor 30 is disposed radially inward away from the inner surface of the housing 20.
The speed reducer 32 is disposed at an end portion on the tip end side inside the housing 20. The reducer 32 closes the opening on the front end side of the cylinder portion formed by the upper housing 21 and the lower housing 22. The speed reducer 32 is fixed to the inner side surface of the housing 20. The reducer 32 is connected to an output shaft 34. The motor shaft 31 is coupled to an output shaft 34 via a reduction gear 32. The rotation of the motor shaft 31 is decelerated by the reduction gear 32 and transmitted to the output shaft 34. Thereby, the motor 30 rotates the output shaft 34 via the motor shaft 31.
The brake device 33 is fixed to the end portion of the motor 30 on the base end side. In the present embodiment, the brake device 33 is disposed away from the inner surface of the housing 20 toward the radially inner side. The brake device 33 brakes the rotation of the motor 30.
In the present embodiment, the motor 30 is not directly fixed to the housing 20, but is fixed to the housing 20 via the reduction gear 32. The brake device 33 is not directly fixed to the housing 20, but is fixed to the housing 20 via the motor 30 and the reduction gear 32. Therefore, for example, even when the housing 20 is deformed, the relative positional relationship of the motor 30, the decelerator 32, and the brake device 33 is easily maintained.
Fig. 4 is a sectional view showing a schematic structure of the speed reducer 32. As shown in fig. 4, the reduction gear 32 includes a flange portion 35, a reduction gear case 36, a spring case 37, and a switching mechanism 55.
The reduction gear 32 also has a planetary gear mechanism 2 housed in a reduction gear case 36. In the present embodiment, the planetary gear mechanism 2 includes a1 st planetary gear mechanism 3, a2 nd planetary gear mechanism 4, and a 3 rd planetary gear mechanism 5. The 1 st planetary gear mechanism 3, the 2 nd planetary gear mechanism 4, and the 3 rd planetary gear mechanism 5 are coupled in this order from one axial side (base end side) to the other axial side (tip end side). That is, in the present embodiment, the speed reducer 32 has the planetary gear mechanism 2 of the three-stage structure.
The 1 st planetary gear mechanism 3 includes a1 st internal gear 3a, a1 st carrier portion 3c, and a plurality of 1 st planetary gears 3 b. Each component of the 1 st planetary gear mechanism 3 is made of resin. The 1 st internal gear 3a is disposed with a flange portion provided radially outward being sandwiched between the reducer case 36 and the flange portion 35. Thereby, the 1 st internal gear 3a is fixed with respect to the reducer case 36.
In the present embodiment, the 1 st planetary gear 3b is rotatably supported on one surface of the 1 st planetary carrier portion 3c via a rotary shaft 3b 1. The 1 st planetary gears 3b are engaged with the teeth 3a1 provided on the inner peripheral surface of the 1 st internal gear 3a and the teeth (not shown) provided on the motor shaft 31. The 1 st carrier portion 3c has an output shaft 3c1 on the other surface (the surface opposite to the surface on which the 1 st planetary gear 3b is provided).
In the 1 st planetary gear mechanism 3, the 1 st planetary gear 3b moves around the central axis J along the 1 st internal gear 3a by the rotation of the motor shaft 31, and thereby the 1 st carrier part 3c (output shaft 3c1) rotates at a predetermined number of revolutions.
The 2 nd planetary gear mechanism 4 is coupled to the output shaft 3c1 of the 1 st planetary gear mechanism 3. The 2 nd planetary gear mechanism 4 includes a2 nd internal gear 4a, a2 nd planetary gear 4b, and a2 nd carrier portion 4 c. Each component of the 2 nd planetary gear mechanism 4 is substantially made of resin. In the present embodiment, the 2 nd internal gear 4a can be switched to a fixed state with respect to the reduction gear case 36 by a switching mechanism 55 described later. Here, "switching the fixed state with respect to the reduction gear case 36" refers to switching between a state in which the rotation with respect to the reduction gear case 36 is disabled by being fixed with respect to the reduction gear case 36 and a state in which the rotation with respect to the reduction gear case 36 is enabled by not being fixed with respect to the reduction gear case 36.
The 2 nd planetary gear 4b is rotatably supported on one surface of the 2 nd planetary carrier portion 4c via a rotary shaft 4b 1. The plurality of 2 nd planetary gears 4b are engaged with the teeth 4a1 provided on the inner peripheral surface of the 2 nd internal gear 4a and the teeth (not shown) provided on the output shaft 3c1 of the 1 st planetary gear mechanism 3. The 2 nd planetary carrier portion 4c has an output shaft 4c1 on the other surface (the surface on the opposite side from the surface on which the 2 nd planetary gear 4b is provided).
In the 2 nd planetary gear mechanism 4, the 2 nd planetary gears 4b move around the central axis J along the 2 nd internally toothed gear 4a by the rotation of the output shaft 3c1 of the 1 st planetary gear mechanism 3, and thereby the 2 nd carrier part 4c (output shaft 4c1) rotates at a predetermined number of revolutions.
The 3 rd planetary gear mechanism 5 is connected to the output shaft 4c1 of the 2 nd planetary gear mechanism 4. The 3 rd planetary gear mechanism 5 includes a 3 rd internal gear 5a, a 3 rd planetary gear 5b, and a 3 rd carrier portion 5 c. Each component of the 3 rd planetary gear mechanism 5 is made of resin. In the present embodiment, the 3 rd internal gear 5a is fitted into the gear case 36 and fixed to the gear case 36.
The 3 rd planetary gear 5b is rotatably supported on one surface of the 3 rd planetary carrier portion 5c via a rotary shaft 5b 1. The 3 rd planetary gears 5b are engaged with the teeth 5a1 provided on the inner peripheral surface of the 3 rd internal gear 5a and the teeth (not shown) provided on the output shaft 4c1 of the 2 nd planetary gear mechanism 4. The 3 rd carrier part 5c is formed of an annular member and is fitted into one end side of the output shaft 34.
The output shaft 34 protrudes toward the other surface of the 3 rd planetary carrier part 5c (the surface opposite to the surface on which the 3 rd planetary gear 5b is provided). The output shaft 34 is drawn out to the outside of the gear case 36 via a holding member 6 such as a bearing.
The switching mechanism 55 switches between a coupled state in which the output shaft 34 is coupled to the motor shaft 31 and a non-coupled state in which the output shaft 34 is separated from the motor shaft 31 in accordance with the axial movement of the lock pin 39. That is, the switching mechanism 55 switches the power transmission state between the output shaft 34 and the motor 30.
The switching mechanism 55 is provided in the reduction gear 32, and has a gear side concave portion 4R1, a case side concave portion 36a, and a lock pin 39. In the present embodiment, the switching mechanism 55 is provided in the 2 nd internal gear 4a of the 2 nd planetary gear mechanism 4 located at the center in the axial direction in the planetary gear mechanism 2.
Fig. 5 is a perspective view showing the structure of the main part of the speed reducer 32. In fig. 5, the illustration of the 1 st planetary gear mechanism 3 is omitted for the sake of easy viewing of the main structure of the 2 nd planetary gear mechanism 4 and the reduction gear case 36.
As shown in fig. 5, the gear-side concave portion 4R1 is recessed radially inward from the outer peripheral end of the 2 nd internal gear 4a of the 2 nd planetary gear mechanism 4, and opens on one axial side (base end side) of the 2 nd internal gear 4 a. The opening of the gear side concave portion 4R1 is semicircular.
The 2 nd internal gear 4A has a cylindrical gear main body 4A and a clutch ring 4R fixed to an end surface of one axial side (base end side) of the gear main body 4A. Teeth 4A1 (see fig. 4) are provided on the inner peripheral surface of the cylindrical gear body 4A. The clutch ring 4R has a plurality of gear side concave portions 4R 1. The clutch ring 4R and the gear body 4A are fixed by fitting to each other without using a screw member or the like.
In the present embodiment, the clutch ring 4R is made of metal, and the gear body 4A is made of resin. This improves the strength of the clutch ring 4R, and therefore, it is possible to further reduce breakage of the clutch ring 4R caused by insertion and removal of the lock pin 39 into and from the gear side recessed portion 4R 1. Further, by molding the gear main body 4A, which is a part of the components of the 2 nd internal gear 4A, with resin, it is possible to reduce the weight while maintaining the mechanical strength of the portion of the 2 nd internal gear 4A to which a load is applied.
The case-side concave portion 36a is recessed radially outward from an inner peripheral surface of the reduction gear case 36, which radially faces the outer peripheral surface of the 2 nd internal gear 4a, and is open on one axial side (base end side). The opening of the case-side recess 36a is semicircular.
As shown in fig. 4, the lock pin 39 is inserted into and removed from the hole 8 formed by the gear-side concave portion 4R1 and the housing-side concave portion 36a in the axial direction at a position where the gear-side concave portion 4R1 and the housing-side concave portion 36a are opposed to each other in the radial direction.
As shown in fig. 4, the gear main body 4A has a recessed portion 7 recessed radially inward of the gear-side recessed portion 4R1 at one axial end. Since the recessed portion 7 is located radially inward of the gear-side recessed portion 4R1, it does not come into contact with the lock pin 39 inserted into the gear-side recessed portion 4R1, as described later. Thereby, the gear body 4A does not obstruct the insertion of the lock pin 39. And the occurrence of breakage and wear due to contact between the gear main body 4A and the lock pin 39 can be reduced.
In the state shown in fig. 5, the 2 nd internal gear 4a (clutch ring 4R) is rotatable with respect to the reduction gear case 36, and the gear-side concave portion 4R1 and the case-side concave portion 36a do not face each other in the radial direction.
In the present embodiment, since the 2 nd internal gear 4a has the plurality of gear side concave portions 4R1, even when the gear side concave portion 4R1 and the case side concave portion 36a do not face each other in the radial direction, the gear side concave portion 4R1 and the case side concave portion 36a can be made to face each other in the radial direction by slightly rotating the 2 nd internal gear 4a so as not to rotate by one turn. This facilitates the alignment of the 2 nd internal gear 4a and the reduction gear case 36 when the lock pin 39 is inserted into the hole 8.
The axial position of the locking pin 39 is maintained by the position locking mechanism 60. Fig. 6 is a diagram showing a schematic configuration of the position lock mechanism 60. As shown in fig. 6, the position lock mechanism 60 includes a coil spring 38, a link 68d, and a heart cam device 61. Fig. 6 also shows a lock pin 39 connected to the tip end of the connecting rod 68d and a spring case 37 for attaching the coil spring 38 to the speed reducer 32.
In the present embodiment, as shown in fig. 4, the coil spring 38 is housed in the spring housing 37. The spring housing 37 is a substantially cylindrical member and is provided along one axial side (base end side) of the speed reducer 32. The spring case 37 is drawn out to one axial side of the speed reducer 32 through a hole 35a provided in the flange portion 35. The spring case 37 is fixed to the reduction gear 32 by being sandwiched between the flange portion 35 and the 1 st internal gear 3 a.
As shown in fig. 4, the spring housing 37 has a housing space 37a provided on the other side (front end side) in the axial direction. The housing space 37a houses the coil spring 38. An end portion of one axial side (front end side) of the coil spring 38 is in contact with an end surface of the lock pin 39, and an end portion of the other axial side (base end side) of the coil spring 38 is in contact with an inner surface of the spring housing 37. The coil spring 38 is housed in the housing space 37a of the spring housing 37 so as to generate a biasing force for pressing the lock pin 39 toward the distal end side. Thereby, the lock pin 39 is pressed in the axial direction by the coil spring 38. A part (end on the other axial side) of the lock pin 39 is housed in the housing space 37a of the spring housing 37.
The front end side of the link 68d is connected to the lock pin 39 on the side opposite to the speed reducer 32. One axial side of the connecting rod 68d is fitted into a hole provided in the lock pin 39 and connected to the lock pin 39, and the other axial side of the connecting rod 68d is drawn out so as to be inserted into the coil spring 38. The connecting rod 68d is drawn out to the outside of the spring case 37 through a through hole 37b provided in the spring case 37. The inner diameter of the through hole 37b is smaller than the outer diameter of the lock pin 39.
The lock pin 39 can be inserted into and removed from the hole portion 8 by being moved in the axial direction by the connecting rod 68 d. The lock pin 39 is inserted into a hole 3a2 provided in the 1 st internal gear 3a of the 1 st planetary gear mechanism 3, and is insertable into and removable from the hole 8.
Fig. 7 is a diagram showing a schematic configuration of the heart cam device 61. As shown in fig. 7, the heart cam device 61 includes an operation portion 68, a housing 61A, a cam follower 65, and a link 64.
The operating portion 68 includes a hook portion 68a, an operating wire 68b, and a sheath tube 68 c. The proximal end side of the hook portion 68a is inserted into the heart cam device 61, and the distal end side of the hook portion 68a is connected to the proximal end side end of the connecting rod 68d (see fig. 6).
The operating wire 68b is connected to the proximal end of the hook 68 a. The operating wire 68b extends from the hook portion 68a toward the proximal end side and is drawn out to the outside of the housing 20. As shown in fig. 1, the operation wire 68b drawn out to the outside of the housing 20 is drawn out downward from the drive device 10, and constitutes a pull switch 68 e.
The cladding tube 68c is connected to the heart cam gear 61. The coating tube 68c extends from the heart cam device 61 toward the base end side and is drawn out to the outside of the housing 20. The operation wire 68b passes through the inside of the cladding pipe 68 c.
As shown in fig. 7, the case 61A has a rectangular box shape with a bottom plate opened on the front side. As shown in fig. 3, the case 61A is fixed to the radially inner surface of the projecting flat plate portion 22c by screws.
The housing 61A has a cam portion 62. The cam portion 62 is an annular groove formed by a concave portion 63a recessed rearward from an inner surface 61A facing forward side among inner surfaces of the housing 61A and a substantially heart-shaped convex portion 63b located inside the concave portion 63 a.
The link 64 is connected to the base end side end of the hook 68a so as to be rotatable about an axis parallel to the front-rear direction Y. In the link 64 of the present embodiment, only the front end side is biased by the biasing force of the coil spring 38. Therefore, the base end side of the link 64 of the present embodiment is not applied with a force acting upward.
The cam follower 65 is connected to the end of the link 64 on the base end side. The cam follower 65 is disposed in the cam portion 62. The cam follower 65 moves in the annular cam portion 62 in accordance with the operation of the operation portion 68. That is, the link 64 connects the cam follower 65 and the operating portion 68 (hook portion 68 a).
In the present embodiment, as shown in fig. 6, the operation portion 68, the connecting rod 68d, and the lock pin 39 are disposed at positions overlapping when viewed in the axial direction. That is, the operation portion 68, the connecting rod 68d, and the lock pin 39 are linearly arranged in the axial direction.
Fig. 8 is a view of the cam portion 62 viewed from the front side. As shown in fig. 8, the outer edge side of the cam portion 62 has a substantially heart shape when viewed in the front-rear direction Y. The cam portion 62 has a1 st portion 62a, a2 nd portion 62b, a 3 rd portion 62c, and a 4 th portion 62 d. The 1 st portion 62a is substantially arc-shaped and projects obliquely upward toward the base end side. The position in the front-rear direction Y of the 1 st bottom portion 66a as the bottom portion of the 1 st part 62a changes toward the front side from the end portion on the front end side of the 1 st part 62a toward the end portion on the base end side.
The 2 nd portion 62b is connected to the lower side of the end portion on the base end side of the 1 st portion 62 a. The position in the front-rear direction Y of the 2 nd bottom portion 66b as the bottom portion of the 2 nd portion 62b is located more rearward than the end portion on the base end side of the 1 st bottom portion 66 a. Therefore, the 1 st step portion 67a is provided at the connection portion between the 1 st bottom portion 66a and the 2 nd bottom portion 66 b.
The 3 rd portion 62c is connected to the leading end side of the 2 nd portion 62 b. The 3 rd bottom portion 66c as the bottom portion of the 3 rd portion 62c is positioned further to the rear side than the 2 nd bottom portion 66b in the front-rear direction Y. Therefore, a2 nd step portion 67b is provided at a connection portion between the 2 nd bottom portion 66b and the 3 rd bottom portion 66 c.
The 4 th portion 62d is connected to the 3 rd portion 62c obliquely downward on the tip side. The 4 th portion 62d extends from the lower end portion of the 4 th portion 62d toward the front end side with a slight inclination to the upper side. The lower end of the 4 th portion 62d is the lower end of the recess 63 a. The upper end portion of the 4 th portion 62d is connected to the lower end portion on the leading end side of the 1 st portion 62 a. The lower end portion of the 4 th bottom portion 66d as the bottom portion of the 4 th part 62d is positioned further to the rear side than the 3 rd bottom portion 66c in the front-rear direction Y. Therefore, a 3 rd step portion 67c is provided at a connection portion between the 3 rd bottom portion 66c and the 4 th bottom portion 66 d. The position in the front-rear direction Y of the 4 th bottom portion 66d changes to the front side from the lower end portion toward the upper end portion of the 4 th bottom portion 66 d. The position in the front-rear direction Y of the upper end portion of the 4 th bottom portion 66d connected to the end portion on the front end side of the 1 st bottom portion 66a is the same as the end portion on the front end side of the 1 st bottom portion 66 a.
In the present embodiment, the cam portion 62 includes: a1 st position P1 at which the cam follower 65 is disposed at the 1 st position P1 at the forward position at which the operation unit 68 advances toward the speed reducer 32 side; and a2 nd position P2 where the cam follower 65 is disposed at the 2 nd position P2 at the retreated position where the operation portion 68 is retreated from the advanced position.
Here, the "forward position in which the operation portion 68 advances toward the speed reducer 32 side" refers to a position in which the lock pin 39 is inserted into the hole portion 8. That is, when the cam follower 65 is disposed at the 1 st position P1, the lock pin 39 is inserted into the hole 8. The 1 st position P1 corresponds to the front end of the 1 st portion 62a described above.
The "retreated position where the operation portion 68 is retreated from the advanced position" means a position where the lock pin 39 is pulled out from the hole portion 8. That is, when the cam follower 65 is disposed at the 2 nd position P2, the lock pin 39 is in a state of being pulled out from the hole 8.
Further, the cam portion 62 includes: a1 st path T1 through which the cam follower 65 moving from the 1 st position P1 to the 2 nd position P2 passes when switching from the advanced position to the retracted position; and a2 nd path T2 through which the cam follower 65 moving from the 2 nd position P2 to the 1 st position P1 passes when switching from the retracted position to the advanced position.
The 1 st passage T1 is formed of a part of the 1 st bottom 66a (the leading end upper side portion of the 1 st portion 62 a), the 2 nd bottom 66b, and a part of the 3 rd bottom 66c (the base end side portion of the 3 rd portion 62 c). The 2 nd passage T2 is formed by the remaining part of the 3 rd bottom 66c, the 4 th bottom 66d, and the remaining part of the 1 st bottom 66a (the obliquely lower portion of the front end of the 1 st portion 62 a). The 2 nd passage T2 is connected to the 1 st passage T1 at a position closer to the 2 nd position P2 side (base end side) than the 1 st position P1 (the leading end portion of the 1 st segment 62 a).
The cam portion 62 has an escape groove portion 69 located closer to the speed reducer 32 than a connection portion R between the 1 st passage T1 and the 2 nd passage T2, and the escape groove portion 69 can house the cam follower 65. The escape groove portion 69 is provided on the leading end side of the 1 st portion 62 a. The front end portion of the escape groove portion 69 corresponds to the 1 st position P1. In addition, in FIG. 8, the portion functioning as both the 1 st path T1 and the 2 nd path T2 in the 1 st part 62a is the above-mentioned linking portion R.
In the present embodiment, the width W1 of the 1 st passage T1 is wider than the escape groove portion 69 at the connecting portion R with the 2 nd passage T2 and becomes narrower from the connecting portion R toward the 2 nd position P2. In fig. 8, the maximum width W1 is denoted by reference numeral W1 max. That is, the upper side wall surface 63b2 of the convex portion 63b defining the width W1 of the 1 st passage T1 is located below the lower side wall surface of the escape groove portion 69.
Hereinafter, the operation of the position lock mechanism 60 in the rolling device 1 of the present embodiment will be described. First, it is assumed that the lock pin 39 is in a state of being inserted into the hole portion 8 of the speed reducer 32.
For example, when the operator pulls the pull switch 68e, the operation wire 68b is pulled toward the base end side, and the lock pin 39 is moved toward the base end side via the hook portion 68a and the coupling rod 68 d. The coil spring 38 mounted to the lock pin 39 is in a state of being compressed in the spring housing 37.
At this time, as shown by the two-dot chain line in fig. 8, the cam follower 65 moves from the 1 st position P1 to the 3 rd position P3. The 1 st position P1 is the leading end in the escape groove 69, and the 3 rd position P3 is in the 2 nd part 62 b.
When the operator releases the force pulling the pull switch 68e, the operation wire 68b, the hook portion 68a, the coupling rod 68d, and the lock pin 39 move to the front end side by the restoring force of the coil spring 38 compressed in the spring housing 37. At this time, the cam follower 65 moves from the 3 rd position P3 to the 2 nd position P2. Position 2P 2 is located within section 3 62 c. In the 2 nd position P2, the cam follower 65 contacts the lower side wall surface 63b1 of the projection 63 b.
In the present embodiment, since the lock pin 39 is biased toward the distal end side by the coil spring 38, the coupling rod 68d and the hook portion 68a coupled to the lock pin 39 are also biased toward the distal end side. The link 64 connected to the hook portion 68a and the cam follower 65 attached to the link 64 are also biased toward the front end side. Therefore, the cam follower 65 is pressed against the lower side wall surface 63b1 of the convex portion 63b, and thus the movement of the cam follower 65 toward the distal end side is favorably prevented.
Thus, the movement of the operation wire 68b, the hook portion 68a, the connecting rod 68d, and the lock pin 39 to the distal end side is blocked, and the state in which the lock pin 39 is retracted from the hole portion 8 is maintained. At this time, the 2 nd internal gear 4a is rotatable with respect to the reduction gear case 36, and therefore the 2 nd planetary gear mechanism 4 does not transmit the input from the motor shaft 31 to the 1 st planetary gear mechanism 3 to the 3 rd planetary gear mechanism 5 side. That is, the non-coupled state in which the coupling of the output shaft 34 and the motor shaft 31 is released is maintained. In the uncoupled state, the output shaft 34 can rotate freely regardless of the state of the motor shaft 31, and therefore the operator can manually raise and lower the roller shutter 80.
In the present embodiment, since the switching mechanism 55 is provided at the 2 nd internal gear 4a of the 2 nd planetary gear mechanism 4 positioned at the center in the axial direction in the planetary gear mechanism 2, the load when manually raising and lowering the roller shutter 80 is reduced as compared with the case where the switching mechanism 55 is provided at the 1 st internal gear 3a (the 1 st planetary gear mechanism 3) that is distant from the output shaft 34. Therefore, the manual operation of raising and lowering the roller shutter 80 is facilitated.
In addition, consider a case where the operator pulls the pull switch 68e slowly toward the base end side. Since no upward force is applied to the base end side of the link 64 of the present embodiment, there is a possibility that the cam follower 65 will fall downward together with the link 64 when the cam follower 65 moves toward the base end side.
Here, a case where the relief groove portion 69 is not provided is considered. In the case where the escape groove portion 69 is not provided, when the cam follower 65 starts moving toward the base end side together with the link 64, the cam follower 65 drops downward together with the link 64, and thus may enter the 2 nd passage T2 (the 4 th part 62d) instead of the 1 st passage T1. Then, after the cam follower 65 moves from the 1 st position P1 to the 4 th position P4, when the operator releases the force pulling the pull switch 68e, the cam follower 65 returns to the 1 st position P1 again. In this case, the cam follower 65 cannot be moved from the 1 st position P1 to the 2 nd position P2.
In contrast, according to the present embodiment, when the cam follower 65 starts moving toward the base end side together with the link 64, the cam follower 65 is guided along the inside of the escape groove portion 69, and therefore the downward fall of the cam follower 65 can be suppressed. Thereby, the cam follower 65 is suppressed from entering the 2 nd passage T2 (4 th part 62 d).
In the present embodiment, since the upper side wall surface 63b2 of the convex portion 63b defining the width W1 of the 1 st passage T1 is located below the lower side wall surface of the escape groove portion 69, the cam follower 65 moves to the 5 th position P5 of the upper side wall surface 63b2 of the convex portion 63b even if the cam follower slightly falls downward when moving to the base end side. Therefore, the cam follower 65 can be suppressed from entering the 2 nd passage T2.
Therefore, according to the roller shutter device 1 of the present embodiment, the cam follower 65 can be stably moved from the 1 st position P1 to the 2 nd position P2. This makes it possible to stably switch from the connected state to the disconnected state.
On the other hand, in the non-connected state, when the operator pulls the pull switch 68e again, the cam follower 65 moves from the 2 nd position P2 to the base end side. However, since the 2 nd step portion 67b is provided, the cam follower 65 is suppressed from returning to the 2 nd portion 62b, and the cam follower 65 moves along the step surface of the 2 nd step portion 67b and the side surface on the outer edge side of the recess 63 a. Then, the cam follower 65 moves to the 4 th position P4 through the 2 nd passage T2. The 4 th position P4 is located within the lower end of the 4 th portion 62 d.
In this state, when the operator releases the force pulling the pull switch 68e, the cam follower 65 is returned to the 1 st position P1 located at the front end of the escape groove portion 69 again by the biasing force of the coil spring 38 through the 2 nd path T2.
This causes the lock pin 39 to be inserted into the hole 8 again. In a state where the lock pin 39 is inserted into the hole 8, the 2 nd internal gear 4a is fixed to the reduction gear case 36. At this time, the 2 nd planetary gear mechanism 4 can transmit the input from the motor shaft 31 to the 1 st planetary gear mechanism 3 to the 3 rd planetary gear mechanism 5 side. That is, the output shaft 34 and the motor shaft 31 are again connected.
According to the rolling shutter device 1 of the present embodiment, in the position lock mechanism 60, the lock pin 39 that moves in the axial direction is inserted into and removed from the reduction gear 32 via the connecting rod 68d by the heart cam device 61, whereby the state of connection between the output shaft 34 and the motor shaft 31 can be switched. Thus, the position lock mechanism 60 is not positioned radially outward of the speed reducer 32, and therefore the size of the speed reducer 32 in the radial direction is not increased. Therefore, the motor unit 10a having the speed reducer 32 is suppressed from being large-sized.
Further, according to the present embodiment, since the operation portion 68 (the operation wire 68b), the connecting rod 68d, and the lock pin 39 are linearly arranged in the axial direction, the pulling force on the pull switch 68e is easily transmitted to the lock pin 39 via the hook portion 68a and the connecting rod 68 d. Thereby, the operator can pull the pull switch 68e with a relatively small force to move the locking pin 39. That is, according to the present embodiment, the coupling state of the output shaft 34 and the motor shaft 31 can be switched with a small force.
Therefore, according to the present embodiment, the motor unit 10a can be provided in which the coupling state of the output shaft 34 and the motor shaft 31 can be switched with a small force while suppressing an increase in size of the unit.
As shown in fig. 1, the rotary drum 11 is cylindrical and extends in the axial direction X and is disposed radially outside the casing 20. The rotary cylinder 11 is centered on the central axis J, for example. The rotary cylinder 11 extends from the end on the base end side of the motor unit 10a to a position on the front end side (+ X side) of the end on the front end side of the motor unit 10 a. The end portion on one side (X side) in the axial direction X of the rotary drum 11 is coupled to the housing 20 via a bearing 70. Although not shown, the other end (+ X side) in the axial direction X of the rotary cylinder 11 is supported to be rotatable with respect to the wall. Thereby, both ends of the rotary cylinder 11 in the axial direction X are supported to be rotatable around the central axis J.
The rotary drum 11 is coupled to the output shaft 34 via the coupling member 12. As shown in fig. 2, the connecting member 12 is a substantially rectangular plate-shaped member fixed to the output shaft 34. As shown in fig. 1, the connecting member 12 is fixed to the inner peripheral surface of the rotary cylinder 11. Thus, when the output shaft 34 rotates, the rotary cylinder 11 is also rotated via the coupling member 12. That is, the rotary cylinder 11 rotates with the rotation of the output shaft 34. Since the rotary drum 11 is provided, the drive device 10 of the present embodiment can be used as a drive device for a roller blind device, a drive device for a conveying roller, or the like.
Specifically, in the drive device 10 used in the roller blind device 1 according to the present embodiment, the roller blind 80 can be wound around the rotary drum 11 by rotating the rotary drum 11, and the roller blind 80 can be raised. Further, by rotating the rotary drum 11 in the reverse direction, the roller shutter 80 wound around the rotary drum 11 can be unwound, and the roller shutter 80 can be lowered.
When the motor unit 10a is provided in the drive device 10 provided with the rotary drum 11 as in the present embodiment, the space inside the housing 20 can be increased as compared with the case 20 in which the housing 20 is in the form of a square cylinder, by using the cylindrical housing 20 of the motor unit 10 a. That is, the cylindrical shape of the housing 20 provides the motor unit 10a which can be suitably used for the drive device 10 having the rotary cylinder 11.
In the roller blind apparatus 1, for example, other devices are disposed in addition to the portion that houses the motor unit 10a in the rotary drum 11. Therefore, if the motor unit 10a is increased in size in the axial direction X, there is a problem that other devices cannot be disposed. Therefore, the above-described effect of being able to suppress the increase in size of the motor unit 10a is particularly useful when applied to the drive device 10 for the roller blind device 1.
The present invention is not limited to the above-described embodiments, and can be modified as appropriate without departing from the scope of the invention. The motor unit 10a of the above-described embodiment is not limited in its application, and may be mounted on any device other than the drive device 10 for the rolling shutter device 1. The drive device 10 of the above-described embodiment may be mounted on any device other than the rolling device 1. In addition, the above-described structures can be appropriately combined within a range not inconsistent with each other.
Description of the reference symbols
1: a roller blind device; 10 a: a motor unit; 11: a rotary drum; 20: a housing (unit housing); 30: a motor; 32: a speed reducer; 34: an output shaft; 37: a spring housing; 38: a coil spring; 39: a locking pin; 55: a switching mechanism; 60: a position locking mechanism; 61: a heart-shaped cam device; 61A: a housing; 62: a cam portion; 64: a connecting rod; 65: a cam follower; 68: an operation section; 68 d: a connecting rod; 69: avoiding the groove part; j: a central axis; p1: position 1; p2: position 2; r: a connecting portion; t1: a1 st path; t2: a2 nd path; w1: a width; x: and (4) axial direction.
Claims (6)
1. A motor unit having:
an output shaft extending along a central axis;
a speed reducer coupled to the output shaft;
a motor connected to the speed reducer;
a switching mechanism provided in the speed reducer and configured to switch a power transmission state between the output shaft and the motor in accordance with an axial movement of the lock pin; and
a position locking mechanism connected to the locking pin to maintain an axial position of the locking pin,
the position lock mechanism includes:
a link connected to a side of the locking pin opposite to the speed reducer;
a coil spring provided on the link side of the lock pin and pressing the lock pin in an axial direction; and
and a heart cam device that is coupled to the coupling rod and moves the coupling rod in the axial direction.
2. The motor unit according to claim 1,
the motor unit has a spring housing fixed to the speed reducer, the spring housing accommodating the coil spring,
an end portion of the coil spring on one axial side is in contact with an inner surface of the spring housing,
the end portion of the other axial side of the coil spring is in contact with the end surface of the lock pin.
3. The motor unit according to claim 1 or 2, wherein,
the heart cam device has:
an operation unit that is coupled to the coupling rod and operates the lock pin;
a housing having a cam portion formed of an annular groove;
a cam follower located within the cam portion; and
a link connecting the cam follower and the operation portion,
the operation portion, the link, and the lock pin are arranged at positions that overlap when viewed in the axial direction.
4. The motor unit according to claim 3,
the cam portion has:
a1 st position at which the cam follower is disposed in the 1 st position, at an advance position at which the operation portion advances toward the speed reducer side;
a2 nd position in which the cam follower is disposed at the 2 nd position, in a retreated position in which the operation portion is retreated from the advanced position;
a1 st path through which the cam follower moving from the 1 st position to the 2 nd position passes when switching from the forward position to the reverse position;
a2 nd passage connected to the 1 st passage at a position closer to the 2 nd position than the 1 st position, through which the cam follower moving from the 2 nd position to the 1 st position passes when switching from the retracted position to the advanced position; and
and a relief groove portion located closer to the speed reducer than a connection portion between the 1 st passage and the 2 nd passage, and capable of accommodating the cam follower.
5. The motor unit according to claim 4,
the 1 st passage is wider at the connecting portion than at the relief groove portion, and becomes narrower from the connecting portion toward the 2 nd position.
6. A drive device, comprising:
the motor unit of any one of claims 1 to 5;
a cylindrical unit case that houses the motor unit and extends in an axial direction; and
and a cylindrical rotary drum disposed radially outside the unit case and coupled to the output shaft.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2017195910 | 2017-10-06 | ||
| JP2017-195910 | 2017-10-06 | ||
| PCT/JP2018/037160 WO2019070015A1 (en) | 2017-10-06 | 2018-10-04 | Motor unit and drive device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111164862A true CN111164862A (en) | 2020-05-15 |
Family
ID=65994328
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201880064182.5A Withdrawn CN111164862A (en) | 2017-10-06 | 2018-10-04 | Motor unit and drive device |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP7255806B2 (en) |
| CN (1) | CN111164862A (en) |
| WO (1) | WO2019070015A1 (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002138779A (en) * | 2000-11-06 | 2002-05-17 | Yuhshin Co Ltd | Winding device for motor-driven shutter |
| JP2004027841A (en) * | 1995-07-17 | 2004-01-29 | Bunka Shutter Co Ltd | Device for winding shutter or the like |
| JP2006262688A (en) * | 2005-02-18 | 2006-09-28 | Shinano Kenshi Co Ltd | Clutching mechanism for motor |
| JP2010255833A (en) * | 2009-04-28 | 2010-11-11 | Three Peace Kk | Geared motor |
| JP2011238532A (en) * | 2010-05-12 | 2011-11-24 | Tokai Rika Co Ltd | Structure for manually releasing locking of power supply plug lock device |
-
2018
- 2018-10-04 WO PCT/JP2018/037160 patent/WO2019070015A1/en active Application Filing
- 2018-10-04 JP JP2019547005A patent/JP7255806B2/en active Active
- 2018-10-04 CN CN201880064182.5A patent/CN111164862A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004027841A (en) * | 1995-07-17 | 2004-01-29 | Bunka Shutter Co Ltd | Device for winding shutter or the like |
| JP2002138779A (en) * | 2000-11-06 | 2002-05-17 | Yuhshin Co Ltd | Winding device for motor-driven shutter |
| JP2006262688A (en) * | 2005-02-18 | 2006-09-28 | Shinano Kenshi Co Ltd | Clutching mechanism for motor |
| JP2010255833A (en) * | 2009-04-28 | 2010-11-11 | Three Peace Kk | Geared motor |
| JP2011238532A (en) * | 2010-05-12 | 2011-11-24 | Tokai Rika Co Ltd | Structure for manually releasing locking of power supply plug lock device |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2019070015A1 (en) | 2019-04-11 |
| JPWO2019070015A1 (en) | 2021-01-14 |
| JP7255806B2 (en) | 2023-04-11 |
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Application publication date: 20200515 |
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