CN111743448B - Opening/closing member drive device and toilet lid opening/closing unit - Google Patents
Opening/closing member drive device and toilet lid opening/closing unit Download PDFInfo
- Publication number
- CN111743448B CN111743448B CN202010217467.7A CN202010217467A CN111743448B CN 111743448 B CN111743448 B CN 111743448B CN 202010217467 A CN202010217467 A CN 202010217467A CN 111743448 B CN111743448 B CN 111743448B
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- gear
- output
- opening
- output shaft
- reinforcing member
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- 230000003014 reinforcing effect Effects 0.000 claims abstract description 112
- 230000002093 peripheral effect Effects 0.000 claims abstract description 43
- 230000005540 biological transmission Effects 0.000 claims abstract description 36
- 239000002184 metal Substances 0.000 claims description 9
- 239000011347 resin Substances 0.000 claims description 7
- 229920005989 resin Polymers 0.000 claims description 7
- 238000001514 detection method Methods 0.000 claims description 5
- 230000000694 effects Effects 0.000 description 4
- 239000000758 substrate Substances 0.000 description 4
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000011144 upstream manufacturing Methods 0.000 description 1
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Classifications
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47K—SANITARY EQUIPMENT NOT OTHERWISE PROVIDED FOR; TOILET ACCESSORIES
- A47K13/00—Seats or covers for all kinds of closets
- A47K13/10—Devices for raising and lowering, e.g. tilting or lifting mechanisms; Collapsible or rotating seats or covers
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47K—SANITARY EQUIPMENT NOT OTHERWISE PROVIDED FOR; TOILET ACCESSORIES
- A47K13/00—Seats or covers for all kinds of closets
- A47K13/12—Hinges
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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
- F16H1/00—Toothed gearings for conveying rotary motion
- F16H1/02—Toothed gearings for conveying rotary motion without gears having orbital motion
- F16H1/04—Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members
- F16H1/06—Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members with parallel axes
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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
- F16H1/00—Toothed gearings for conveying rotary motion
- F16H1/02—Toothed gearings for conveying rotary motion without gears having orbital motion
- F16H1/20—Toothed gearings for conveying rotary motion without gears having orbital motion involving more than two intermeshing members
- F16H1/22—Toothed gearings for conveying rotary motion without gears having orbital motion involving more than two intermeshing members with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts
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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
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/03—Gearboxes; Mounting gearing therein characterised by means for reinforcing gearboxes, e.g. ribs
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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)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Power Engineering (AREA)
- Toilet Supplies (AREA)
- Gear Transmission (AREA)
Abstract
An opening/closing member drive device and a toilet lid opening/closing unit, in which an output shaft of the opening/closing member drive device is not inclined by a load. In the opening/closing member drive device (1), an output shaft (7) is provided with: a base (12) located within the housing (9) on one side (Z1) in a first direction (Z); and a protruding portion that protrudes from the housing on the other side (Z2) in the first direction. The transmission mechanism (8) is provided with: an output gear (43) coaxially fixed to a base of the output shaft; a fourth gear (42) that meshes with the output gear; and a fulcrum shaft extending in the first direction and rotatably supporting the fourth gear. The output gear includes an annular portion (43a) having no tooth portion on the outer peripheral surface thereof at the other end portion in the first direction. The reinforcing member (35) is more rigid than the housing, and includes an output gear receiving section (65) that rotatably supports the annular section from the outer peripheral side, and a shaft holding section that supports the other end of the support shaft in the first direction.
Description
Technical Field
The present invention relates to an opening/closing member driving device that drives an opening/closing member, and a toilet lid opening/closing unit that opens/closes a toilet lid of a toilet unit as an opening/closing member.
Background
Patent document 1 describes an opening/closing member driving device for opening/closing an opening/closing member such as a toilet lid. The opening/closing member drive mechanism of patent document 1 includes a motor, an output shaft connected to the opening/closing member, a transmission mechanism for transmitting a drive force of the motor to the output shaft, and a housing for housing the motor and the transmission mechanism. The output shaft protrudes to the outside from an opening provided in the housing. The housing is made of resin.
Documents of the prior art
Patent document
Patent document 1: japanese patent laid-open publication No. 2016-77396
Disclosure of Invention
Technical problem to be solved by the invention
The output shaft is connected to an end of the opening and closing member to open/close the opening and closing member in a cantilever state. Therefore, a load is applied to the output shaft when the opening/closing member is opened/closed. Here, when a support portion that rotatably supports the output shaft is provided in the housing, the housing may be bent or the output shaft may be inclined due to a load applied to the output shaft. If the output shaft is inclined, the transmission efficiency of torque to the opening/closing member is reduced.
In view of the above, it is an object of the present invention to provide an opening/closing member driving device and a toilet lid opening/closing unit, in which an output shaft is not inclined by a load when opening/closing an opening/closing member.
Technical scheme for solving technical problem
In order to solve the above-described problems, the present invention provides an opening/closing member driving device including: an electric motor; an output shaft connected to the opening and closing member; a transmission mechanism that transmits a driving force of the motor to the output shaft; a housing that houses the motor and the transmission mechanism; and a reinforcing member fixed to an inner side of the housing, the output shaft including a base portion positioned in the housing on one side in the first direction and a protruding portion protruding from the housing on the other side in the first direction when an axial direction of the output shaft is set to the first direction, the transmission mechanism including an output gear, a front gear meshing with the output gear, and a support shaft extending in the first direction and rotatably supporting the front gear, the output gear being coaxially fixed to the base portion of the output shaft and constituting an output member together with the output shaft, the reinforcing member being higher in rigidity than the housing and including an output member receiving portion rotatably supporting the output member from an outer peripheral side and a shaft holding portion, the shaft holding portion supports an end portion of the support shaft on the other side in the first direction.
According to the present invention, the reinforcing member having higher rigidity than the case is provided in the case. The reinforcing member rotatably supports an output member including an output shaft and an output gear. Therefore, even in the case where a load is applied to the output shaft, the inclination of the output shaft can be prevented or suppressed by the reinforcing member. In addition, a high-rigidity reinforcing member supports the output member and the support shaft of the front stage gear. Therefore, the front stage gear and the output gear can be prevented from being displaced in the direction of separating from each other by a load from the outside. Accordingly, since the meshing of the front stage gear and the output gear can be maintained in a normal state, a decrease in the transmission efficiency of torque to the opening/closing member can be prevented or suppressed.
In the present invention, the following manner may be adopted: the output gear includes an annular portion having no tooth portion on an outer peripheral surface thereof at an end portion on the other side in the first direction, and the output member receiving portion rotatably supports the annular portion from an outer peripheral side. Accordingly, the output shaft can be prevented or suppressed from tilting by supporting the output gear by the reinforcing member. Further, since the support shaft of the output gear and the backing gear is supported by the high-rigidity reinforcing member, the backing gear and the output gear can be prevented from being displaced in a direction away from each other by a load from the outside.
In the present invention, the following manner may be adopted: the output shaft includes a bearing-receiving portion having a circular outer peripheral surface on the other side of the base portion in the first direction of the output gear, and the output member receiving portion rotatably supports the bearing-receiving portion from the outer peripheral side. Accordingly, the output shaft can be prevented or suppressed from tilting by the reinforcing member. Further, since the high-rigidity reinforcing member supports the output shaft to which the output gear is coaxially fixed and the support shaft of the front stage gear, the front stage gear and the output gear can be prevented from being displaced in a direction of being separated from each other by a load from the outside.
In the present invention, it is preferable that an end surface of the output shaft on one side in the first direction has a circular recess recessed toward the other side, the housing has a support portion inserted into the circular recess and rotatably supporting the output shaft and the output gear, and an end portion of the support portion on the other side in the first direction is located on the other side in the first direction than an end surface of the reinforcing member on one side in the first direction in the circular recess. Accordingly, the inclination of the output shaft is easily prevented.
In the present invention, the following manner may be adopted: the output shaft includes a supported portion on the other side of the output gear in the first direction of the base portion, the supported portion having a circular outer peripheral surface, the housing includes a housing portion that covers the reinforcing member from the other side in the first direction, and the housing portion has an output shaft receiving portion that rotatably supports the supported portion from the outer peripheral surface. Thereby, the output shaft is also supported by the housing. Therefore, the inclination of the output shaft is easily prevented.
In the present invention, the following manner may be adopted: the case is made of resin, and the reinforcing member is made of metal. Accordingly, the rigidity of the reinforcing member is higher than that of the case.
In the present invention, the following manner may be adopted: the output gear is made of metal. Accordingly, even when a load is applied to the output gear via the output shaft, the output gear can be prevented from being deformed.
In the present invention, the following manner may be adopted: when two directions orthogonal to the first direction are set as a second direction and a third direction, the output gear and the front stage gear are aligned along the second direction, and the reinforcing member is fixed to the housing between the output member receiving portion and the shaft holding portion in the second direction. Accordingly, the reinforcing member is fixed to the housing at a position close to the output gear. Therefore, when a load is applied to the output gear via the output shaft, the reinforcing member can be prevented from being flexed.
In the present invention, the following manner may be adopted: the case includes a first side wall and a second side wall that are aligned in the third direction and extend parallel to the second direction, the reinforcing member is disposed between the first side wall and the second side wall, a portion that does not contact each other is provided between the reinforcing member and the first side wall, and a portion that does not contact each other is provided between the reinforcing member and the second side wall. Accordingly, it is possible to suppress the load applied from the output gear to the reinforcing member via the output shaft from being transmitted to the case.
In the present invention, the following manner may be adopted: the potentiometer includes a potentiometer gear that meshes with one of a plurality of gears constituting the transmission mechanism on one side of the reinforcing member in the first direction, and a detection unit that is fixed to the other side of the reinforcing member in the first direction and detects a rotational angle position of the potentiometer gear. If a potentiometer is provided, it is easy to grasp the angular position of an opening/closing member connected to an output shaft around the axis. In this case, the potentiometer can be disposed by the reinforcing member.
Next, the toilet lid opening and closing unit of the present invention is characterized by having the opening and closing member driving device as described above, wherein the opening and closing member is a toilet lid.
According to the present invention, the output shaft of the opening and closing part driving means connected to the toilet lid is not inclined. Therefore, the opening and closing of the toilet lid can be normally maintained.
(effect of the invention)
According to the present invention, the reinforcing member having higher rigidity than the casing is provided in the casing. The reinforcing member rotatably supports an output member including an output shaft and an output gear. Therefore, even in the case where a load is applied to the output shaft, the inclination of the output shaft can be prevented or suppressed by the reinforcing member. In addition, a high-rigidity reinforcing member supports the output member and the support shaft of the front stage gear. Therefore, the front stage gear and the output gear can be prevented from being displaced in the direction of separating from each other by a load from the outside. Accordingly, since the meshing of the front stage gear and the output gear can be maintained in a normal state, a decrease in the transmission efficiency of torque to the opening/closing member can be prevented or suppressed.
Drawings
Fig. 1 is an external perspective view of an opening/closing member driving device.
Fig. 2 is an explanatory view of the toilet lid opening and closing unit.
Fig. 3 is a sectional view of the opening/closing member driving device.
Fig. 4 is an exploded perspective view of the opening/closing member driving device.
Fig. 5 is a perspective view of the motor, the transmission mechanism, and the output shaft when viewed from the other side in the first direction.
Fig. 6 is a perspective view of the motor, the transmission mechanism, and the output shaft when viewed from one side in the first direction.
Fig. 7 is an exploded perspective view of the output shaft, the output gear, the first coil spring, and the second coil spring as viewed from the other side in the first direction.
Fig. 8 is an exploded perspective view of the output shaft, the output gear, the first coil spring, and the second coil spring as viewed from one side in the first direction.
Fig. 9 is a perspective view of the middle case as viewed from the first direction side.
Fig. 10 is a sectional view of an opening/closing member driving device according to a modification.
Fig. 11 is an exploded perspective view of the reinforcing member, the output member, the first coil spring, and the second coil spring.
Description of the reference numerals
1. 1a … shutter drive device; 3 … toilet lid opening and closing unit; 5 … output member; 6 … electric motor; 7 … an output shaft; 8 … transfer mechanism; 9 … a housing; 10 … case opening part; 11 … projection; 12 … a base; 13 … a first side wall; 14 … second side wall; 15 … a third side wall; 16 … fourth side wall; 21 … a first housing; 22 … intermediate housing; 23 … a third shell; 25 … bottom wall portion; 26 … frame portion; 27 … rotating the shaft; 28 … motor body; 29 … motor terminals; 30 … bearing components; 31 … middle bottom; 32 … middle frame portion; 32a … first frame portion; 32b … second frame portion; 32c … first notch portion; 32d … second notch portion; 33 … middle shell opening part; 34 … shaft holding part; 35 … a reinforcing member; 35a … end face; 35b, 35c … projection; 36 … reinforcing the member-side opening; 37 … potentiometer; 38 … worm; 39 … first gear; 39a … first large diameter gear; 39b … first small-diameter gear; 40 … second gear; 40a … second large diameter gear; 40b … second small diameter gear; 41 … third gear; 41a … third large diameter gear; 41b … third small-diameter gear; 42 … fourth gear (front stage gear); 43 … output gear; 43a … loop portion; 45 … first fulcrum; 46 … torque limiter; 47 … shaft holding part; 48 … second fulcrum; 49 … third fulcrum; 50 … circular recess; 51 … recess; 52 … convex portions; 53 … a first coil spring; 53a … the end portion on one side of the first coil spring; 53b … the end of the other side of the first coil spring; 54 … a second coil spring; 54a … the end portion on one side of the second coil spring; 54b … the end of the other side of the second coil spring; 55 … through holes; 56 … first coil spring first detent; 57 … first coil spring second latch; 58 … second coil spring first detent; 59 … second coil spring second latch; 61 … support portion; 62 … circular recesses; 63 … gear fixing part; 64 … supported shaft portions; 65 … output gear receiving part (output member receiving part); 65a … output shaft receiving portion (output member receiving portion); 68 … supported portion; 69 … output shaft receiving part; 70 … annular groove; 71 … O-ring; 73 … first projection; 74 … second projection; 76 … gap; 77 … gap; 81 … potentiometer gear; 82 … detection part; 83 … a substrate; 86 … terminal pins; 87 … terminal pin holding part; 200 … toilet bowl unit; 201 … toilet cover; 202 … toilet body; 203 … toilet seat; 204 … water tank; x … third direction (short side direction of the case); y … second direction (longitudinal direction of the case); z … first direction (axial direction).
Detailed Description
Hereinafter, an embodiment of the toilet lid opening and closing unit according to the present invention will be described with reference to the accompanying drawings.
(integral constitution)
Fig. 1 is an external perspective view of an opening/closing member driving device. Fig. 2 is an explanatory view of the toilet lid opening and closing unit. Fig. 3 is a sectional view of the opening/closing member driving device. Fig. 4 is an exploded perspective view of the opening/closing member driving device. Fig. 5 is a perspective view of the motor, the transmission mechanism, and the output shaft when viewed from the other side in the axial direction. Fig. 6 is a perspective view of the motor, the transmission mechanism, and the output shaft when viewed from one side in the axial direction. Fig. 7 is an exploded perspective view of the output shaft, the output gear, the first coil spring, and the second coil spring as viewed from the other side in the axial direction. Fig. 8 is an exploded perspective view of the output shaft, the output gear, the first coil spring, and the second coil spring as viewed from one side in the axial direction. Fig. 9 is a perspective view of the middle housing as viewed from one side in the axial direction.
The opening/closing member driving device 1 shown in fig. 1 rotates an opening/closing member such as a cover or a door to open or close. In the toilet lid opening/closing unit 3, a toilet lid 201 of the toilet unit 200 is connected as an opening/closing member to the opening/closing member driving device 1. More specifically, as shown in fig. 2, the toilet unit 200 has a toilet body 202, a toilet seat 203, a toilet lid 201, and a water tank 204. In the toilet lid 201, the end on the water tank 204 side is connected to the output shaft 7 of the opening/closing member driving device 1. The toilet lid 201 is moved by the rotation of the output shaft 7 between a closed position lying down and covering the toilet body 202 and an open position standing up from the toilet body 202. Further, the second opening/closing member driving device 1 may be provided in the toilet unit 200, and the toilet seat 203 may be connected to the output shaft 7 of the second opening/closing member driving device 1 as an opening/closing member.
As shown in fig. 3, the opening/closing member driving device 1 includes: a motor 6; an output shaft 7 connected to the toilet lid 201; a transmission mechanism 8 that transmits the driving force of the electric motor 6 to the output shaft 7; and a housing 9 for housing the motor 6 and the transmission mechanism 8.
The output shaft 7 includes a protruding portion 11 protruding from the case opening 10 of the case 9 and a base portion 12 housed in the case 9. The end of the toilet lid 201 is connected to the projection 11 of the output shaft 7. Therefore, the opening/closing member driving device 1 opens and closes the toilet lid 201 in a cantilever state. As shown in fig. 1, the housing 9 has a shape elongated in one direction when viewed in a direction along the axis L of the output shaft 7. The output shaft 7 protrudes from an end portion of the housing 9 in the longitudinal direction to the outside of the housing 9.
In the following description, three directions orthogonal to each other are referred to as a first direction Z, a second direction Y, and a third direction X. The first direction Z is an axial direction along the axis L of the output shaft 7, the second direction Y is a longitudinal direction of the housing 9, and the third direction X is a short-side direction of the housing 9. In the first direction Z, the side on which the housing 9 is located is a first side Z1 in the first direction Z, and the side on which the output shaft 7 protrudes is a second side Z2 in the first direction Z.
The case 9 is made of resin. As shown in fig. 1, the housing 9 includes a first side wall 13 and a second side wall 14 extending parallel to the second direction Y. The housing 9 further includes a third side wall 15 extending in the third direction X and connecting one edge of the first side wall 13 and one edge of the second side wall 14. The housing 9 further includes a fourth side wall 16 connecting the other edge of the first side wall 13 in the second direction Y and the other edge of the second side wall 14 in the second direction Y. The fourth side wall 16 has a shape that protrudes between the first side wall 13 and the second side wall 14 toward the other side in the second direction Y.
As shown in fig. 1 and 3, the housing 9 includes a first housing 21, an intermediate housing 22, and a second housing 23 arranged along the first direction Z. The first case 21 is located on one side Z1 of the first direction Z of the intermediate case 22, and the second case 23 is located on the other side Z2 of the first direction Z of the intermediate case 22.
As shown in fig. 4, the first case 21 includes a bottom wall portion 25 and a frame portion 26 extending from an outer peripheral edge of the bottom wall portion 25 to the other side Z2 in the first direction Z. The frame 26 constitutes end portions of the first, second, third, and fourth side walls 13, 14, 15, and 16 of the case 9 in the first direction Z. The motor 6 is fixed to the first housing 21. The motor 6 includes: a motor body 28; a rotary shaft 27 protruding from the motor body 28; and a pair of motor terminals 29 projecting from the motor main body 28 to the side opposite to the rotation shaft 27. The output shaft 7 is located on the other side Z2 of the first direction Z of the motor body 28. The rotary shaft 27 faces in a direction intersecting the axis L of the output shaft 7. In the present embodiment, the rotation shaft 27 faces a direction orthogonal to the axis L of the output shaft 7. Further, the rotation shaft 27 is inclined with respect to the second direction Y (longitudinal direction of the housing 9) when viewed from the first direction Z. The front end of the rotary shaft 27 is rotatably supported by a bearing member 30.
The intermediate case 22 includes an intermediate bottom portion 31 and an intermediate frame portion 32 extending from an outer peripheral edge of the intermediate bottom portion 31 to the other side Z2 in the first direction Z. The middle frame portion 32 constitutes a middle portion in the first direction Z of the first side wall 13, the second side wall 14, the third side wall 15, and the fourth side wall 16 of the case 9. Some of the gears constituting the transmission mechanism 8 are housed in the intermediate case 22.
A plate-shaped reinforcing member 35 is fixed to an end of the intermediate case 22 on the second case 23 side. The reinforcing member 35 is higher in rigidity than the housing 9. In the present embodiment, the reinforcing member 35 is made of metal. The reinforcing member 35 is provided with a reinforcing member side opening 36. The output shaft 7 protrudes from the reinforcing member side opening 36 to the other side Z2 in the first direction Z. Further, a potentiometer 37 is attached to the reinforcing member 35. The potentiometer 37 is located at an end portion on the opposite side to the output shaft 7 in the second direction Y.
The second case 23 is plate-shaped, covers the reinforcing member 35 from the other side Z2 in the first direction Z, and is fixed to the intermediate case 22. The second case 23 covers the reinforcing member 35 from the other side Z2 in the first direction Z. The second case 23 includes a plate portion 17 as an end surface of the other side Z2 of the case 9 in the first direction Z. As shown in fig. 3 and 4, the plate portion 17 includes a plate portion through hole 17a through which the output shaft 7 passes. The second housing 23 further includes an output shaft receiving portion 69 protruding from an opening edge of the plate portion through hole 17a in the plate portion 17 toward the other side Z2 in the first direction Z. The plate portion through hole 17a and the output shaft receiving portion 69 are coaxially provided. The output shaft 7 penetrates the plate portion through hole 17a and the output shaft receiving portion 69 inside the case 9, and protrudes outward from the case opening 10, which is an edge of the other side Z2 of the output shaft receiving portion 69 in the first direction Z.
As shown in fig. 5 and 6, the transmission mechanism 8 includes a worm 38, a first gear 39, a second gear 40, a third gear 41, a fourth gear 42 (front stage gear), and an output gear 43 from the upstream side to the downstream side of the drive force transmission path from the motor 6 to the output shaft 7. The worm 38 is fixed to the outer peripheral side of the rotation shaft 27. The worm 38 and the first gear 39 are located within the first housing 21. The second gear 40, the third gear 41, the fourth gear 42, and the output gear 43 are located within the intermediate housing 22.
The first gear 39 is located on the other side X2 in the third direction X of the rotary shaft 27 of the motor 6. The first gear 39 includes a first large-diameter gear 39a that meshes with the worm 38, and a first small-diameter gear 39b that is coaxial with the first large-diameter gear 39a and has a smaller outer diameter than the first large-diameter gear 39 a. The first large-diameter gear 39a is located on one side Z1 in the first direction Z of the first small-diameter gear 39 b. The first gear 39 is rotatably supported by a first support shaft 45 extending in the first direction Z. One end of the first support shaft 45 is held by the bottom wall 25 of the first housing 21, and the other end is held by the intermediate bottom 31 of the intermediate housing 22. As shown in fig. 3, the first gear 39 includes a torque limiter 46 that maintains and interrupts transmission of the driving force between the first large-diameter gear 39a and the first small-diameter gear 39 b.
As shown in fig. 5 and 6, the second gear 40 includes a second large-diameter gear 40a that meshes with the first small-diameter gear 39b, and a second small-diameter gear 40b that is coaxial with the second large-diameter gear 40a and has a smaller outer diameter than the second large-diameter gear 40 a. The second large-diameter gear 40a is located on one side Z1 of the second small-diameter gear 40b in the first direction Z. The second large-diameter gear 40a meshes with the first small-diameter gear 39b via the intermediate case opening 33 provided in the intermediate bottom portion 31 of the intermediate case 22 (see fig. 3). The second gear 40 is rotatably supported by a second fulcrum 48 extending in the first direction Z. One end of the second support shaft 48 is held by the intermediate bottom 31 of the intermediate case 22, and the other end is held by the reinforcing member 35.
The third gear 41 includes a third large-diameter gear 41a that meshes with the second small-diameter gear 40b, and a third small-diameter gear 41b that is coaxial with the third large-diameter gear 41a and has a smaller outer diameter than the third large-diameter gear 41 a. The third large-diameter gear 41a is located on one side Z1 of the third small-diameter gear 41b in the first direction Z. The third gear 41 is rotatably supported by a third fulcrum 49 extending in the first direction Z. One end of the third support shaft 49 is held by the intermediate bottom 31 of the intermediate case 22, and the other end is held by the second case 23. The third support shaft 49 penetrates the reinforcing member 35.
The fourth gear 42 is a spur gear that meshes with the third small-diameter gear 41b and the output gear 43. The fourth gear 42 and the output gear 43 are aligned in the second direction Y. The fourth gear 42 is disposed coaxially with the second gear 40 and is rotatably supported by the second support shaft 48. As shown in fig. 3, one end of the second support shaft 48 is held by the intermediate case 22, and the other end is held by the reinforcing member 35. That is, the intermediate bottom portion 31 of the intermediate housing 22 includes a shaft holding portion 34 that holds a second support shaft 48 that supports the second gear 40 and the fourth gear 42. The reinforcing member 35 includes a shaft holding portion 47 (see fig. 9) that holds a second support shaft 48 that supports the second gear 40 and the fourth gear 42.
The output gear 43 is made of metal. An output shaft 7 is coaxially fixed to the output gear 43. That is, as shown in fig. 7 and 8, the output gear 43 is annular, and the base portion 12 of the output shaft 7 is inserted into the central hole thereof. A plurality of recesses 51 are circumferentially provided on the inner peripheral surface of the output gear 43, and a plurality of protrusions 52 that fit into the recesses 51 on the inner peripheral surface of the output gear 43 are provided on the outer peripheral surface of the base portion 12 of the output shaft 7. Thereby, the output gear 43 and the output shaft 7 are connected in a state of being incapable of relative rotation about the axis L. The output gear 43 constitutes the output member 5 together with the output shaft 7.
Here, the transmission mechanism 8 includes a first coil spring 53 and a second coil spring 54. The first coil spring 53 is located on one side Z1 of the output gear 43 in the first direction Z. The first coil spring 53 is loaded on the intermediate bottom 31 of the intermediate housing 22. An end 53a of the first coil spring 53 on the first direction Z side Z1 extends to the first direction Z side Z1. An end 53a of the first coil spring 53 on the first direction Z side Z1 protrudes from the through hole 55 provided in the intermediate bottom 31 of the intermediate case 22 to the first direction Z side Z1, and is locked to a first coil spring first locking portion 56 provided in the first case 21 (see fig. 4). The end 53b of the other side Z2 of the first coil spring 53 in the first direction Z extends toward the other side Z2 of the first direction Z and is inserted into a first coil spring second locking portion 57 provided on the outer peripheral surface of the output gear 43 so as to be lockable. The first coil spring second locking portion 57 is a notched portion provided in the tooth portion of the output gear 43. The end portion 53b of the other side Z2 of the first coil spring 53 in the first direction Z can be locked to the output gear 43 in the circumferential direction. The first coil spring 53 has a rectangular cross section.
The second coil spring 54 is located on the inner peripheral side of the first coil spring 53. The second coil spring 54 is loaded on the intermediate bottom 31 of the intermediate housing 22. The second coil spring 54 is located on one side Z1 of the output shaft 7 in the first direction Z. An end 54a of the second coil spring 54 on the first direction Z side Z1 extends toward the inner peripheral side of the second coil spring 54 and is locked to a second coil spring first locking portion 58 provided at the middle plate portion of the intermediate case 22 (see fig. 9). The end 54b of the second coil spring 54 on the other side Z2 in the first direction Z extends to the other side Z2 in the first direction Z, and is locked to a second coil spring second locking portion 59 (see fig. 8) provided on the other end surface of the output shaft 7 in the first direction Z.
(supporting structure of output Member)
As shown in fig. 3 and 9, the output member 5 is rotatably supported by the support portion 61 protruding from the intermediate bottom portion 31 of the intermediate case 22 to the other side Z2 in the first direction Z. As shown in fig. 3, the support portion 61 is positioned on the inner peripheral side of the first coil spring 53 and the second coil spring 54, and protrudes further toward the other side Z2 in the first direction Z than the first coil spring 53 and the second coil spring 54. Here, the output shaft 7 of the output member 5 includes a circular recess 62 recessed toward the other side Z2 of the first direction Z at the end surface of one side Z1 of the first direction Z, and the tip end portion of the support portion 61 is inserted into the circular recess 62. The distal end of the support portion 61 contacts the bottom surface of the circular recess 62 (the circular inner wall surface of the other side Z2 of the circular recess 62 in the first direction Z).
The output gear 43 of the output member 5 is rotatably supported by the reinforcing member 35. That is, the output gear 43 includes an annular portion 43a having no tooth portion on the outer peripheral surface at the end portion on the other side Z2 in the first direction Z. On the other hand, as shown in fig. 3 and 4, the reinforcing member 35 includes an output gear receiving portion 65 (output member receiving portion) that rotatably supports the annular portion 43a of the output gear 43 from the outer peripheral side, at the outer peripheral edge portion of the reinforcing member side opening portion 36. The output gear receiving portion 65 is a tube portion of the reinforcing member 35 that extends while being bent toward the other side Z2 in the first direction Z of the reinforcing member side opening portion 36. The output gear receiving portion 65 is provided by, for example, burring. As shown in fig. 3, the edge of the other side Z2 in the first direction Z of the support portion 61 is closer to the other side Z2 in the first direction Z than the end surface 35a of the one side Z1 in the first direction Z of the reinforcing member 35.
The output shaft 7 is rotatably supported by the second housing 23. That is, the output shaft 7 includes the supported portion 68, and the supported portion 68 has a circular outer peripheral surface at a position on the other side Z2 in the first direction Z with respect to the output gear 43 on the base portion 12 located inside the housing 9. The second housing 23 (housing portion) includes a cylindrical output shaft receiving portion 69 extending in the first direction Z at an outer peripheral portion of the housing opening portion 10, and the output shaft receiving portion 69 rotatably supports the support portion 61 of the output shaft 7 from the outer peripheral side. The output gear receiving portion 65 is a cylindrical portion of the second housing 23 that extends while being bent toward the other side Z2 of the housing opening 10 in the first direction Z. The output shaft 7 includes an annular groove 70 in the middle of the supported portion 68 in the first direction Z. An O-ring 71 is fitted in the annular groove 70. The O-ring 71 seals between the output shaft receiving portion 69 of the second housing 23 and the output shaft 7 in a radially compressed state.
(fixing structure of reinforcing Member)
Here, the reinforcing member 35 is fixed to the intermediate housing 22 between the output gear receiving portion 65 and the shaft holding portion 47 in the second direction Y. That is, as shown in fig. 9, the intermediate case 22 includes a first protrusion 73 and a second protrusion 74 that protrude toward the inner peripheral side in the first frame portion 32a and the second frame portion 32b of the intermediate frame portion 32 that extend in parallel in the second direction Y. The first projection 73 and the second projection 74 are provided with screw holes, respectively. The first frame portion 32a includes a rectangular first notch 32c at a position where the first protrusion 73 is provided. The second frame portion 32b includes a rectangular second notch 32d at a position where the second protrusion 74 is provided. The second frame portion 32b is a portion constituting a part of the second side wall 14 of the housing. The first projection 73 and the second projection 74 are opposed to each other in the third direction X.
On the other hand, as shown in fig. 4, the reinforcing member 35 includes a pair of protruding portions 35b and 35c protruding to both sides in the third direction X between the output gear receiving portion 65 and the shaft holding portion 47 in the second direction Y. The protruding portions 35b and 35c are provided with through grooves. In the reinforcing member 35, the protruding portion 35b of the one side X1 in the third direction X is inserted into the first notch portion 32c of the first frame portion 32a from the other side Z2 in the first direction Z and abuts against the first protrusion 73. In the reinforcing member 35, the protruding portion 35c of the other side X2 in the third direction X is inserted into the second notch portion 32d of the second frame portion 32b from the other side Z2 in the first direction Z and abuts against the second protrusion 74. The reinforcing member 35 is fixed to the intermediate case 22 by a screw 75 that penetrates the second case 23 and then penetrates the through groove of the protruding portion 35b and is screwed into the screw hole of the first protrusion 73. The reinforcing member 35 is fixed to the intermediate case 22 by screws 75 that penetrate the second case 23, penetrate through the through grooves of the protruding portions 35c, and are screwed into the screw 75 holes of the second protrusions 74. In a state where the reinforcing member 35 is fixed to the intermediate case 22, a gap 76 is locally provided between the reinforcing member 35 and the first frame portion 32a, and a gap 77 is locally provided between the reinforcing member 35 and the second frame portion 32 b. That is, in a state where the reinforcing member 35 is fixed to the housing 9, a portion (gap 76) that does not contact each other is provided between the reinforcing member 35 and the first side wall 13. Further, a portion (gap 77) which does not contact each other is provided between the reinforcing member 35 and the second side wall 14.
(potentiometer)
Next, as shown in fig. 5, the potentiometer 37 includes a potentiometer gear 81 that meshes with one of a plurality of gears constituting the transmission mechanism 8. As shown in fig. 4, the potentiometer 37 includes a detection unit 82 that detects the rotational angle position of the potentiometer gear 81. The potentiometer gear 81 is positioned on the first direction Z side Z1 of the reinforcing member 35 and meshes with the third small-diameter gear 41b of the third gear 41. The detection portion 82 is fixed to the reinforcing member 35 via a substrate 83. Here, a wiring (not shown) for supplying electric power to the motor 6 is connected between the substrate 83 and the pair of motor terminals 29. A plurality of terminal pins 86 connected to the potentiometer 37 and wiring are fixed to the substrate 83. The intermediate case 22 includes a terminal pin holding portion 87 at an edge of one side Y1 of the intermediate frame portion 32 in the second direction Y.
(action)
When the motor 6 is driven in the forward or reverse direction by the supply of electric power via the terminal pin 86, the driving force of the motor 6 is transmitted to the output shaft 7 via the transmission mechanism 8. Therefore, as shown in fig. 2, the toilet lid 201 fixed to the output shaft 7 rotates in the closing direction a toward the closed position or in the opening direction B toward the open position. When the toilet lid 201 rotates, a signal corresponding to the rotational angle position of the toilet lid 201 is output from the potentiometer 37.
When the toilet lid 201 connected to the output shaft 7 is rotated in the closing direction a, the first coil spring 53 and the second coil spring 54 accumulate biasing forces that rotate the output shaft 7 in the opening direction B about the axis L. Therefore, when the toilet lid 201 is rotated in the opening direction B, the first coil spring 53 and the second coil spring 54 function as auxiliary springs that urge the output shaft 7 driven in the opening direction B. The transmission mechanism 8 further includes a torque limiter 46 on the first gear 39. Therefore, when an excessive load is applied from the toilet lid 201 to the transmission mechanism 8 via the output shaft 7, the torque limiter 46 acts to cut off the transmission of the driving force by the transmission mechanism 8. This prevents the transmission mechanism 8 from being damaged by an excessive load from the outside.
(Effect)
According to the present embodiment, the reinforcing member 35 having higher rigidity than the case 9 is provided in the case 9. The reinforcing member 35 further includes an output gear receiving portion 65 that rotatably supports the output gear 43 coaxially fixed to the output shaft 7. Therefore, even when a load is applied to the output shaft 7, the output shaft 7 is not inclined by the support of the output gear 43 by the reinforcing member 35. Further, since the high-rigidity reinforcing member 35 supports the second support shaft 48 of the fourth gear 42 engaged with the output gear 43, the fourth gear 42 does not tilt. This prevents the fourth gear 42 and the output gear 43 from being displaced in a direction away from each other by an external load, and therefore the engagement between the fourth gear 42 and the output gear 43 can be maintained in a normal state. Therefore, the transmission efficiency of torque to the toilet lid 201 is not reduced.
The output shaft 7 includes a circular recess 62 recessed toward the other side at an end surface of one side Z1 in the first direction Z, and the housing 9 includes a support portion 61 inserted into the circular recess 50 and rotatably supporting the output shaft 7 and the output gear 43. Further, the end of the other side Z2 in the first direction Z of the support portion 61 is located on the other side Z2 in the first direction Z than the end face of the one side Z1 in the first direction Z of the reinforcing member 35 in the circular recess 50. Therefore, the inclination of the output shaft 7 is easily prevented.
The output shaft 7 includes a supported portion 68 on the other side Z2 in the first direction Z of the output gear 43 on the base portion 12, and the supported portion 68 has a circular outer peripheral surface. The housing 9 includes the second housing 23 covering the reinforcing member 35 from the other side Z2 in the first direction Z, and the second housing 23 includes the support portion 61 rotatably supporting the output shaft 7 of the supported portion 68 from the outer peripheral side. Thereby, the output shaft 7 is also supported by the housing 9. Therefore, the inclination of the output shaft 7 is easily prevented.
In the present embodiment, the case 9 is made of resin, and the reinforcing member 35 is made of metal. Therefore, the reinforcing member 35 is higher in rigidity than the housing 9.
The output gear 43 is made of metal. Therefore, even in the case where a load is applied to the output gear 43 via the output shaft 7, the output gear 43 can be prevented from being deformed.
In the present embodiment, the output gear 43 and the fourth gear 42 are aligned in the second direction Y, and the reinforcing member 35 is fixed to the housing 9 between the output gear receiving portion 65 and the shaft holding portion 47 in the second direction Y. That is, in the reinforcing member 35, the pair of protruding portions 35b, 35c located between the output gear receiving portion 65 and the shaft holding portion 47 in the second direction Y are fixed to the housing 9. Thereby, the reinforcing member 35 is fixed to the housing 9 at a position close to the output gear 43. Therefore, in the case where a load is applied to the output gear 43 via the output shaft 7, the reinforcing member 35 can be prevented from being flexed.
The housing 9 includes a first wall portion and a second wall portion 14 aligned in the third direction X and extending parallel to the second direction Y. The reinforcing member 35 is disposed between the first side wall 13 and the second side wall 14, a gap 76 is locally provided between the reinforcing member 35 and the first side wall 13, and a gap 77 is locally provided between the reinforcing member 35 and the second side wall 14. Accordingly, since the reinforcing member 35 and the case 9 are provided with portions that do not contact each other, it is possible to suppress the load applied to the reinforcing member 35 from the output gear 43 via the output shaft 7 from being transmitted to the case 9.
In the present embodiment, the potentiometer 37 is provided, the potentiometer 37 includes a potentiometer gear 81, the potentiometer gear 81 is engaged with one of a plurality of gears constituting the transmission mechanism 8 at one side Z1 in the first direction Z of the reinforcing member 35, and the detecting unit 82 is fixed to the other side Z2 in the first direction Z of the reinforcing member 35 to detect the rotational angle position of the potentiometer gear 81. This makes it easy to grasp the angular position of toilet lid 201 coupled to output shaft 7 about axis L. Further, the potentiometer 37 can be disposed by the reinforcing member 35.
Here, according to the toilet lid 201 opening and closing unit of the present embodiment, the output shaft 7 of the opening and closing member driving device 1 connected to the toilet lid 201 is not inclined. Therefore, the toilet lid 201 can be normally opened and closed.
(modification example)
Fig. 10 is a sectional view of an opening/closing member driving device according to a modification. Fig. 11 is an exploded perspective view of the reinforcing member 35, the output member 5, the first coil spring 53, and the second coil spring 54. In the shutter drive device 1 described above, the output member 5 including the output shaft 7 and the output gear 43 is rotatably supported by the cylindrical output gear receiving portion 65 provided in the reinforcing member 35. That is, the output gear receiving portion 65 rotatably supports the output gear 43 of the output member 5 from the outer peripheral side. In contrast, in the opening/closing member drive device 1A of the present embodiment, the output member 5 including the output shaft 7 and the output gear 43 is rotatably supported by the cylindrical output shaft receiving portion 65A (output member receiving portion) provided in the reinforcing member 35. That is, the output shaft receiving portion 65A rotatably supports the output shaft 7 of the output member 5 from the outer peripheral side.
In the opening/closing member driving device 1A of the present embodiment, the reinforcing member 35, the output shaft 7, and the output gear 43 are different from the opening/closing member driving device 1 in configuration, but the other configurations are the same as the opening/closing member driving device 1. Therefore, in the opening/closing member driving device 1A of the present embodiment, the reinforcing member 35, the output shaft 7, and the output gear 43 will be described, and descriptions of other configurations will be omitted. The same reference numerals are given to the components corresponding to the opening/closing member driving device 1.
The output shaft 7 is made of resin. As shown in fig. 10, the output shaft 7 includes a protruding portion 11 protruding from a case opening 10 of the case 9 and a base portion 12 housed in the case 9. The end of the toilet lid 201 is connected to the protrusion 11 of the output shaft 7. As shown in fig. 11, the output shaft 7 includes, in order from one side Z1 toward the other side Z2 in the first direction Z, a gear fixing portion 63 that fixes the output gear 43, a bearing receiving portion 64 having a circular outer peripheral surface, and a supporting receiving portion 68 having a circular outer peripheral surface. The bearing receiving portion 64 has an outer diameter larger than the outer diameters of the gear fixing portion 63 and the bearing receiving portion 68. The metal output gear 43 is coaxially fixed to the gear fixing portion 63. Thereby, the output gear 43 constitutes the output member 5 together with the output shaft 7. The output member 5 is rotatably supported by the support portion 61, and the support portion 61 protrudes from the intermediate bottom portion 31 of the intermediate case 22 to the other side Z2 in the first direction Z.
Here, the output gear 43 does not have an annular portion having no toothed portion on the outer peripheral surface. On the other hand, the output shaft 7 includes a bearing receiving portion 64 on the other side Z2 in the first direction Z of the output gear 43 of the base portion 12, and the bearing receiving portion 64 has a circular outer peripheral surface. As shown in fig. 10 and 11, the reinforcing member 35 includes an output shaft receiving portion 65A (output member receiving portion) that rotatably supports the received portion 64 from the outer peripheral side, at the outer peripheral edge portion of the reinforcing member side opening portion 36. The output shaft receiving portion 65A is a tube portion that extends while being bent from the reinforcing member side opening portion 36 of the reinforcing member 35 toward the other side Z2 in the first direction Z. The output shaft receiving portion 65A is provided by, for example, burring. Here, as shown in fig. 10, the edge of the other side Z2 in the first direction Z of the support portion 61 is positioned closer to the other side Z2 in the first direction Z than the end surface 35a of the one side Z1 in the first direction Z of the reinforcing member 35.
Further, in the present embodiment, the fourth gear 42 of the transmission mechanism 8 and the output gear 43 meshing with the fourth gear 42 are aligned in the second direction Y. One end of a second support shaft 48 rotatably supporting the fourth gear 42 is held by the intermediate case 22, and the other end is held by the reinforcing member 35. That is, the intermediate bottom portion 31 of the intermediate housing 22 includes a shaft holding portion 34 that holds the second support shaft 48 that supports the second gear 40 and the fourth gear 42. The reinforcing member 35 includes a shaft holding portion 47 that holds a second support shaft 48 that supports the second gear 40 and the fourth gear 42. Further, the reinforcing member 35 is fixed to the intermediate case 22 between the output shaft receiving portion 65A and the shaft holding portion 47 in the second direction Y.
(Effect)
According to the present embodiment, even when a load is applied to the output shaft 7, the output shaft 7 and the output gear 43 are not tilted by the support of the output shaft 7 by the reinforcing member 35. Further, since the high-rigidity reinforcing member 35 supports the second support shaft 48 of the fourth gear 42 engaged with the output gear 43, the fourth gear 42 does not tilt. This prevents the fourth gear 42 and the output gear 43 from being displaced in a direction away from each other by an external load, and therefore the engagement between the fourth gear 42 and the output gear 43 can be maintained in a normal state. Therefore, the transmission efficiency of torque to the toilet lid 201 is not reduced.
Further, according to the opening/closing member driving device 1A of the present embodiment, the same operational effects as those of the opening/closing member driving device 1 described above can be obtained.
Claims (11)
1. An opening/closing member driving device comprising:
an electric motor;
an output shaft connected to the opening and closing member;
a transmission mechanism that transmits a driving force of the motor to the output shaft;
a housing that houses the motor and the transmission mechanism; and
a reinforcing member fixed to an inner side of the case,
when the axial direction of the output shaft is set to a first direction, the output shaft includes: a base located within the housing on one side of the first direction; and a protruding portion protruding from the housing on the other side of the first direction,
the transmission mechanism includes: an output gear; a backing gear meshed with the output gear; and a support shaft extending in the first direction and rotatably supporting the backing gear,
the output gear is coaxially fixed to a base portion of the output shaft and constitutes an output member together with the output shaft,
the reinforcing member has a higher rigidity than the case, and includes an output member receiving portion that rotatably supports the output member from an outer peripheral side, and a shaft holding portion that supports an end portion of the support shaft on the other side in the first direction.
2. The shutter drive device according to claim 1,
the output gear includes an annular portion having no tooth portion on an outer peripheral surface thereof at an end portion on the other side in the first direction,
the output member receiving portion rotatably supports the annular portion from an outer peripheral side.
3. The shutter drive device according to claim 1,
the output shaft includes a bearing-receiving portion having a circular outer peripheral surface on the other side of the base portion in the first direction of the output gear,
the output member receiving portion rotatably supports the received portion from an outer peripheral side.
4. The opening-closing member driving device according to claim 2 or 3,
an end surface of the output shaft on one side in the first direction is provided with a circular concave portion that is concave toward the other side,
the housing includes a support portion inserted into the circular recess and rotatably supporting the output shaft and the output gear,
the end portion of the support portion on the other side in the first direction is located on the other side in the first direction than the end surface of the reinforcing member on the one side in the first direction in the circular recess.
5. The opening/closing member driving device according to any one of claims 2 to 4,
the output shaft includes a supported portion having a circular outer peripheral surface on the other side of the base portion in the first direction of the output gear,
the case is provided with a case portion that covers the reinforcing member from the other side in the first direction,
the housing portion has an output shaft receiving portion rotatably supporting the supported portion from an outer peripheral side.
6. The opening-closing member driving device according to any one of claims 1 to 5,
the shell is made of resin, and the shell is made of resin,
the reinforcing member is made of metal.
7. The opening-closing member driving device according to any one of claims 1 to 6,
the output gear is made of metal.
8. The opening-closing member driving device according to any one of claims 2 to 7,
when two directions orthogonal to the first direction are set as a second direction and a third direction,
the output gear and the backing gear are aligned along the second direction,
the reinforcing member is fixed to the housing between the output member receiving portion and the shaft holding portion in the second direction.
9. The shutter drive device according to claim 8,
the housing includes a first side wall and a second side wall arranged in the third direction and extending parallel to the second direction,
the reinforcing member is disposed between the first sidewall and the second sidewall,
a portion which does not contact each other is provided between the reinforcing member and the first side wall,
portions that do not contact each other are provided between the reinforcing member and the second side wall.
10. The opening-closing member driving device according to any one of claims 1 to 9,
the device is provided with a potentiometer, a control circuit,
the potentiometer includes a potentiometer gear that meshes with one of a plurality of gears constituting the transmission mechanism on one side of the reinforcing member in the first direction, and a detection unit that is fixed to the other side of the reinforcing member in the first direction and detects a rotational angle position of the potentiometer gear.
11. A toilet lid opening and closing unit is characterized in that,
the opening/closing member drive device according to any one of claims 1 to 10,
the opening and closing part is a toilet lid.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2019-064162 | 2019-03-28 | ||
| JP2019064162 | 2019-03-28 | ||
| JP2019205219A JP7411389B2 (en) | 2019-03-28 | 2019-11-13 | Opening/closing member drive device and toilet lid opening/closing unit |
| JP2019-205219 | 2019-11-13 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111743448A CN111743448A (en) | 2020-10-09 |
| CN111743448B true CN111743448B (en) | 2021-09-10 |
Family
ID=72608903
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010217467.7A Active CN111743448B (en) | 2019-03-28 | 2020-03-25 | Opening/closing member drive device and toilet lid opening/closing unit |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN111743448B (en) |
| WO (1) | WO2020195647A1 (en) |
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| CN1940344A (en) * | 2005-09-26 | 2007-04-04 | 纳博特斯克株式会社 | Speed reducer, production method for speed reducer, roller bearing, and production method for crank shaft |
| CN103580388A (en) * | 2012-08-08 | 2014-02-12 | 日本电产三协株式会社 | Speed-reduction motor |
| CN103683650A (en) * | 2012-09-24 | 2014-03-26 | 日本电产三协株式会社 | Gear motor unit for opening and closing toilet seat cover of toilet bowl |
| CN204886546U (en) * | 2014-07-02 | 2015-12-16 | 日本电产三协株式会社 | Gear motor and automatic opening/closing means |
| CN107620788A (en) * | 2016-07-14 | 2018-01-23 | 日本电产三协株式会社 | Torque limiter and open and close member drive device |
| CN207753560U (en) * | 2017-03-27 | 2018-08-21 | 日本电产三协（浙江）有限公司 | Gearmotor and opening and closing device |
| JP2018207750A (en) * | 2017-06-09 | 2018-12-27 | 日本電産サンキョー株式会社 | Geared motor and drain valve drive unit |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10190810B2 (en) * | 2014-05-28 | 2019-01-29 | Molon Motor & Coil Corporation | Miniaturized motor assembly |
| JP2018076931A (en) * | 2016-11-10 | 2018-05-17 | アイシン精機株式会社 | Supporting structure and actuator comprising the same |
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2020
- 2020-03-04 WO PCT/JP2020/009181 patent/WO2020195647A1/en active Application Filing
- 2020-03-25 CN CN202010217467.7A patent/CN111743448B/en active Active
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|---|---|---|---|---|
| CN1940344A (en) * | 2005-09-26 | 2007-04-04 | 纳博特斯克株式会社 | Speed reducer, production method for speed reducer, roller bearing, and production method for crank shaft |
| CN103580388A (en) * | 2012-08-08 | 2014-02-12 | 日本电产三协株式会社 | Speed-reduction motor |
| CN103683650A (en) * | 2012-09-24 | 2014-03-26 | 日本电产三协株式会社 | Gear motor unit for opening and closing toilet seat cover of toilet bowl |
| CN204886546U (en) * | 2014-07-02 | 2015-12-16 | 日本电产三协株式会社 | Gear motor and automatic opening/closing means |
| CN107620788A (en) * | 2016-07-14 | 2018-01-23 | 日本电产三协株式会社 | Torque limiter and open and close member drive device |
| CN207753560U (en) * | 2017-03-27 | 2018-08-21 | 日本电产三协（浙江）有限公司 | Gearmotor and opening and closing device |
| JP2018207750A (en) * | 2017-06-09 | 2018-12-27 | 日本電産サンキョー株式会社 | Geared motor and drain valve drive unit |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111743448A (en) | 2020-10-09 |
| WO2020195647A1 (en) | 2020-10-01 |
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