KR20050077264A - Apparatus for lifting and lowering a toilet seat - Google Patents

Abstract

<Problem> The toilet seat lifting apparatus which can reduce a load by carrying out raising or lowering of a toilet seat unit by electric, and there is no possibility of being damaged by the overload which a drive mechanism for carrying out electric drive raises or lowers a toilet seat unit. To provide.

<Solution> In the toilet seat raising and lowering apparatus 1, the rotational driving force of the stepping motor 7 is transmitted to the right slider 51 via the deceleration lubrication heat 70, the output pinion 80, and the rack 53, and the toilet seat The movable plate 6 to which the unit is connected is raised and lowered. Moreover, the ratchet mechanism 79 which cuts | connects the connection of the stepping motor 7 and the movable plate 6 with respect to the overload which arises when raising or lowering the movable plate 6 is provided.

Description

Toilet seat lifting device {APPARATUS FOR LIFTING AND LOWERING A TOILET SEAT}

The present invention relates to a toilet seat lifting device for lifting the toilet seat of the Western toilet.

In a Western toilet, the toilet seat and the toilet seat cover are rotated about the inner side to have a flat position and a standing posture. For this reason, even if it is going to clean the inside of the toilet body upper surface, only a very narrow gap is empty between the toilet body and the toilet seat, and a hand does not enter even if it wants to clean the part. Therefore, the toilet seat lifting apparatus which can make the toilet seat unit float from the toilet bowl main body manually is designed (for example, refer patent document 1).

<Patent Document 1> Japanese Patent Application Laid-Open No. 8-177104

However, in the structure which raises and lowers a toilet seat unit manually like a conventional toilet seat lifting apparatus, the work which raises and lowers a toilet seat unit by a human hand in a narrow space called a toilet is hard work, because it is unnatural posture. to be.

In view of the above problems, the problem of the present invention can reduce the burden by carrying out the raising or lowering of the toilet seat unit by electric power, and the overload that is applied when the drive mechanism for performing the electric rolling raises or lowers the toilet seat unit. The present invention provides a toilet seat lifting apparatus that is not likely to be damaged.

MEANS TO SOLVE THE PROBLEM In order to solve the said subject, in this invention, the toilet seat lifting apparatus which has the fixing member fixed to the toilet bowl main body side of a Western-style toilet, the movable member with which the toilet seat unit is mounted, and the guide mechanism which guides this movable member to an up-down direction WHEREIN: The drive member which has a drive mechanism which can raise or lower the said movable member by electric with respect to the said fixed member, The said drive mechanism is an overload which is applied when raising or lowering the drive source and the said movable member which were connected so that the said movable member can be driven. It characterized in that it has a torque limiter for blocking the connection between the drive source and the movable member.

In this invention, it is preferable that the load which can be transmitted by the drive force of this motor using a motor as the said drive source is larger than the overload in which transmission is interrupted by the said torque limiter. In this configuration, a motor (including a DC motor) capable of transmitting a load larger than an overload can be used. Therefore, the driving force of the motor can be provided with a margin, and the degree of freedom in design can be widened. For example, the driving speed of the movable member can be increased by reducing the gear of the deceleration lubrication heat or reducing the number of gear teeth. In addition, since the torque limiter functions before the rotor is removed by overloading, it is possible to prevent damage to the drive mechanism against the inertial force of the rotor due to the removal of the rotor by overloading and rotation at high speed.

In this invention, it is preferable that the said torque limiter cuts off the connection of the said drive source and the said movable member with respect to the overload which takes in the direction which descends the said movable member. In such a configuration, when sitting on the toilet seat, such as a switch operation to accidentally raise the toilet seat unit, or when an excessive force such as an accidental battering is applied while raising or lowering the toilet seat unit. Thus, damage to the drive mechanism can be prevented.

In this invention, it is preferable to comprise the said torque limiter by a ratchet mechanism. In such a configuration, a torque limiter having a relatively large torque value can be configured with a small number of parts in a small space.

In the present invention, it is preferable to use a motor as the drive source, and to have deceleration lubrication heat that decelerates and transmits the driving force of the motor to the movable member. If comprised in this way, a toilet seat unit can be raised at an appropriate speed | rate. In addition, when the floating toilet seat unit is lowered manually, the load generated in response to the reduction ratio of the deceleration lubrication heat has moderate resistance along with the detent torque of the motor, and the toilet seat unit descends slowly. Can be prevented. Therefore, even if the damper mechanism is not provided, the toilet seat unit and the toilet body are not damaged.

In this invention, it is preferable to use a motor as said drive source, and to use a stepping motor as this motor. With this configuration, when the floating toilet seat unit is lowered manually, the detent torque of the stepping motor acts as drag. Therefore, since the toilet seat unit descends slowly when the floating toilet seat unit is lowered, the toilet seat unit and the toilet body are not damaged even if the damper mechanism is not provided.

Best Mode for Carrying Out the Invention

EMBODIMENT OF THE INVENTION Below, an example of the toilet seat lifting apparatus to which this invention is applied is demonstrated with reference to drawings.

(Configuration of Toilet Unit)

1 (a) and 1 (b) are explanatory diagrams showing a state in which a toilet seat is lowered and a state in which a toilet seat is lifted up from the toilet body, respectively, in a western toilet bowl unit using a toilet seat lifting apparatus to which the present invention is applied. .

As shown to Fig.1 (a), the Western toilet unit of this form opens and closes on the toilet seat main body 11 of the Western-style, the toilet seat 12 opened and closed on this toilet seat 11, and this toilet seat 12. The toilet seat 13 is provided, and the toilet seat 12 and the toilet seat 13 are rotated about an inner side to have a flat posture and a standing posture. Here, the toilet seat 12 and the toilet seat cover 13 are integrated as a toilet seat unit 10, and when the toilet seat 12 and the toilet seat cover 13 are laid on their own weight as needed, There may be a built-in damper device for reducing the speed of the motor and a transmission device for electrically opening and closing the toilet lid.

In any of these cases, the toilet seat 12 (the toilet seat unit 10) is lifted from the toilet bowl main body 11 in the Western toilet unit of this embodiment, as shown in Fig. 1B. The electric toilet seat raising and lowering apparatus 1 which enables the upper surface of the upright side to be cleaned to the inside is comprised.

(Configuration of the toilet seat lifting device)

(A), (b), (c), (d) are the top view, the front view of the toilet seat lifting apparatus to which this invention is applied, the schematic sectional drawing in the AA 'line | wire of (a) of FIG. And schematic sectional view taken along the line B-B 'of FIG. (A), (b) is a front view of the state which removed the movable plate and the left slider from the toilet seat lifting apparatus to which this invention is applied, and is a schematic sectional drawing in the C-C 'line | wire of (a) of FIG.

As shown to (a)-(d) of FIG. 2, and (a), (b) of FIG. 3, the toilet seat lifting apparatus 1 of this form of the toilet main body 11 (refer FIG. 1) Of an inverted L-shape fixed to the upper end portion of the fixing plate 2 (fixing member) having the fixing surface 21 on the upper surface portion and the vertical surface 22 bent upward from the rear end of the fixing plate 2. Cylindrical right guide shaft 41 and left guide shaft intersected between the stopper plate 3 and the horizontal portion 31 of the stopper plate 3 and the fixing surface 21 of the fixing plate 2. (42) It has a (guide mechanism).

The right and left sliders 51 and left and right sliders 52 which slide up and down along these guide shafts 41 and 42 are supported by the left and right guide shafts 41 and 42, respectively, and the left and right sliders 51 and 52 are supported. The movable plate 6 (movable member) is attached so that the front surface and the upper surface of () may be covered. The right slider 51 and the left slider 52 have a substantially rectangular parallelepiped shape, and have bearing parts 511 and 521 into which the guide shafts 41 and 42 are inserted, respectively.

Here, the toilet seat unit 10 is fixed to the upper surface 60 of the movable plate 6. For this reason, when the left and right sliders 51 and 52 move up and down along the guide shafts 41 and 42, the toilet seat unit 10 fixed to the movable plate 6 will also move up and down integrally.

In the toilet seat lifting apparatus 1 of this embodiment, the electric drive mechanism 5 which drives this right slider 51 to an up-down direction is comprised with respect to the right slider 51, and this drive mechanism 5 When the right slider 51 is driven up and down by this, the left slider 52, the movable plate 6, and the toilet seat unit 10 also move up and down.

In this embodiment as the drive mechanism 5, first, a rack 53 is formed on the left surface of the right slider 51 over the entire range in the vertical direction.

In this embodiment, the stepping motor 7 capable of rotating in the positive and negative directions as the driving source of the drive mechanism 5 and the driving force of the stepping motor 7 in the space fitted by the left and right guide shafts 41 and 42. The deceleration lubrication heat 70 which transmits this is arrange | positioned, and the output pinion 80 of this deceleration lubrication heat is engaged with the rack 53 of the right slider 51. As shown in FIG. The stepping motor 7 is arrange | positioned under the stopper plate 3, and the output pinion 80 is arrange | positioned in the substantially center position in the height direction of the toilet seat lifting apparatus 1.

The stepping motor 7 is a so-called PM type stepping motor, and the rotor 76 and the magnet 75a provided with the ring-shaped magnet 75a in which the outer peripheral surface is multipole magnetized in the circumferential direction as shown in FIG.3 (b). And a stator 77 facing the outer circumferential surface thereof. The stator 77 has two drive coils arranged along the optical axis direction. Both drive coils are fitted to the external stator core and the internal stator core from both sides in the optical axis direction, and the external stator core and the internal stator core have a plurality of extreme values alternately aligned along the inner circumferential surface of the drive coil. Formed.

The deceleration lubrication heat 70 includes a first reduction gear 71 having a large diameter gear that meshes with a pinion 74a provided in the rotor 76, and the first reduction gear 71. Second reduction gear 72 having a large diameter gear meshed with each other, and a third reduction gear having a small diameter gear of the second reduction gear 72 and a large diameter gear meshing with each other. 73 and the output gear 8 provided with the small diameter gear of this 3rd reduction gear 73, and the large diameter gear 81 which meshes with each other, and with respect to the one end part of this output gear 8; An output pinion 80 is configured, and the output pinion 80 meshes with the rack 53 of the right slider 51. As the right slider 51 moves up and down, the left slider 52 and the movable plate 6 mounted to cover the front and top surfaces of the left slider 52 and the right slider 51 move along.

(Configuration of the position detecting means of the toilet seat unit)

As shown in FIG.3 (b), the small diameter gear 82 is comprised by the large diameter gear 81 in the axial direction of the output gear 8 at the edge part on the opposite side to the output pinion 80, In the lower position of this small-diameter gear 82, the sensor gear 15 which meshes with the small-diameter gear 82 is arrange | positioned. The edge part of the rotating shaft 105 of this sensor gear 15 protrudes from the vertical surface 22 of the fixing plate 2 to the back side. The protruded end portion has a D-shaped cross section, and a D-shaped hole in the rotary part of the potentiometer 14 is fitted therein. For this reason, when the rotating shaft 105 of the sensor gear 15 rotates, the rotary part of the potentiometer 14 will rotate integrally.

Here, the sensor gear 15 is constituted by the number of gear teeth whose rotation ends in less than one rotation while the output pinion 80 drives the entire range of the rack 53 of the right slider 51. Therefore, since the potentiometer 14 outputs the signal corresponding to the angular position of the rotating shaft (rotary part) of the sensor gear 15, the position in the up-down direction of the right slider 51, that is, the lifting position of the toilet seat unit 5 Can be detected.

(Configuration of Stopper)

As shown to (c) and (d) of FIG. 2, the angled hole 55 is opened in the back surface side of the left-right sliders 51 and 52 in the part which opposes the perpendicular surface 22 of the fixing plate 2, respectively. It is. Inside these angled holes 55, engagement members 95 are arranged so as to be able to advance and retreat in the horizontal direction, and inside them, the engagement members 95 are arranged on a vertical surface of the fixing plate 2 ( The spring 96 which presses toward 22 is arrange | positioned. On the other hand, on the vertical surface 22 of the fixing plate 2, when the sliders 51 and 52 on the left and right are moved up and down, the engagement member 95 is positioned at a lower position of the line through which the engagement member 95 passes. The lower side recess 97 into which the front end enters is formed on the left and right side, while the upper side recess 98 in which the front end of the engaging member 95 enters is formed in the upper position.

For this reason, the engagement member 95 of the left and right sliders 51 and 52, the spring 96, and the lower side recessed part 97 by the vertical surface 22 side of the fixing plate 2 are the toilet seat 12 It functions as the 1st stopper 91 which prescribes the holding | maintenance position of the left-right sliders 51 and 52 at the time of lowering (the toilet seat unit). Moreover, the engagement member 95 and the spring 96 of the left and right sliders 51 and 52 side, and the upper side recessed part 98 by the vertical surface 22 side of the fixing plate 2 are the toilet seat 12. It functions as the second stopper 92 which defines the holding positions of the sliders 51 and 52 on the left and right sides when the toilet seat unit is raised. In addition, in either of the first stopper 91 and the second stopper 92, a click feeling is generated when the engaging member 95 is engaged with the lower recess 97 and the upper recess 98. Let's do it.

(Configuration of the rotor)

(A), (b) is a top view which shows the rotor of the stepping motor used for the toilet seat lifting apparatus to which this invention is applied, and a schematic sectional drawing in the DD 'line | wire of (a) of FIG.

As shown in FIG. 4, the rotor 76 includes a magnet 75a and is rotatably supported by the magnet rotor 75 and the magnet rotor 75 which are rotatably supported by the fixed shaft 78. It is comprised by the pinion rotating body 74 supported and provided with the pinion 74a.

As shown in Fig. 4B, the magnet rotating body 75 includes an outer cylinder portion 75b having a magnet 75a fixed to an outer wall and an uneven tooth portion 75e formed on an inner wall thereof, The inner cylinder part 74c which is provided inside this outer cylinder part 75b, and whose inner wall slides with the fixed shaft 78 (refer FIG.3 (b)), and this inner cylinder part 74c and the outer cylinder part 75b are integrated together. It is comprised by the connection part 75d which connects with the wire.

On the other hand, the pinion rotor 74 has a cylinder portion 74b in which an inner wall slides with an outer wall of the inner cylinder portion 74c of the magnet rotor 75, and the pinion 74a is located on the upper side of the outer wall of the cylinder portion 74b. ) Is formed, and as shown in FIG. 4A, the ratchet arm 74c provided to extend along the outer wall is protruded from the lower side. The distal end of the ratchet arm 74c is a click portion 74d engaged with the tooth portion 75e formed on the inner wall of the outer cylinder portion 75b of the magnet rotating body 75. Therefore, this click part 74d is in contact with the toothed part 75e in the state pressed in the radial direction by the ratchet arm 74c. That is, in this embodiment, the ratchet mechanism 79 as a torque limiter is comprised by the ratchet arm 74c and the tooth | gear part 75e. In the case of this embodiment, the load which can be transmitted by the driving force of the stepping motor 7 is comprised larger than the overload which transmission is interrupted by the ratchet mechanism 79. FIG. Thus, although the ratchet mechanism 79 was used as a torque limiter in this form, it is not necessarily limited to the ratchet mechanism 79, Various torque limiters can be used.

(Explanation of lifting movement of the toilet seat)

(A) and (b) are explanatory drawing which shows the state in which the movable member which mounted the toilet seat unit in the lowest position in the toilet seat lifting apparatus to which this invention is applied, and explanatory drawing in which a movable member is in the uppermost position. . 5 (a) and (b) correspond to the cross section in the line A-A 'of FIG. 2 (a).

The toilet seat raising and lowering apparatus 1 of this embodiment fixes the fixing plate 2 to the upper surface part of the toilet body 11 (refer FIG. 1), and the toilet seat unit (to the upper surface 60 of the movable plate 6). 10) It is used with it installed.

Before starting cleaning etc., as shown to Fig.5 (a), the toilet seat 12 is in the upper surface of the toilet main body 11, and the toilet seat unit 10 and the movable plate 6 are in the lowest position. . In this state, the distal end of the engaging member 95 is engaged with the lower recessed portion 97 of the vertical surface 22 of the fixing plate 2, and functions as the first stopper 91. Therefore, in this lowest position, the toilet seat unit 10 rises without preparation by the engagement force in the first stopper 91, the detent torque of the stepping motor 7, and the weight of the toilet seat unit 10. There is no work. In this state, the potentiometer 14 outputs that the toilet seat unit 10 is in the lowest position.

In this state, when the toilet seat unit 10 is to be lifted to start cleaning, the stepping motor 7 rotates in a predetermined number of steps or a predetermined time and a forward direction when a predetermined switch operation is performed. As a result, the rotational kinetic force of the stepping motor 7 is transmitted to the output pinion 80 via the deceleration lubrication heat 70, and as shown in FIG. 5B, the output pinion 80 moves the rack 53. The right slider 51 is raised through this. Thus, engagement with the first stopper 91 is released, and the left slider 52, the movable plate 6, and the toilet seat unit 10 are raised together with the right slider 51 integrally.

And the stepping motor 7 stops after the toilet seat unit 10 raises until the engagement in the 2nd stopper 92 is performed. In the meantime, the small gear 82 of the output gear 8 rotates the sensor gear 15 and the output of the potentiometer 14 changes, so that the toilet seat unit 10 moves from the output to a predetermined position. The rise can be detected. The rising of the toilet seat unit 10 to a predetermined position can be informed by the click sound generated by the second stopper 92. In addition, in the state where the toilet seat unit 10 stopped at the highest position, the toilet seat unit 10 falls to its own weight by the engagement force in the second stopper 92 and the detent torque of the stepping motor 7. There is nothing to dry.

On the other hand, when the cleaning is finished and the toilet seat unit 10 is to be lowered, when the predetermined switch operation is performed in the state shown in Fig. 5B, the stepping motor 7 has a predetermined number of steps or a predetermined time, Rotate in the reverse direction. As a result, the rotational kinetic force of the stepping motor 7 is transmitted to the output pinion 80 via the deceleration lubrication heat 70, and as shown in FIG. 5A, the output pinion 80 is the rack 53. The right slider 51 is lowered through. Therefore, the engagement in the second stopper 92 is released, and the left slider 52, the movable plate 6, and the toilet seat unit 10 descend integrally with the right slider 51.

And the stepping motor 7 stops after the toilet seat unit 10 descends until the engagement in the 1st stopper 91 is performed. In the meantime, the small gear 82 of the output gear 8 rotates the sensor gear 15 in reverse, and the output of the potentiometer 14 changes, so that the toilet seat unit 10 moves from the output to a predetermined position. A drop can be detected. In addition, it can be notified that the toilet seat unit 10 descended to the predetermined position by the click sound generated by the first stopper 91.

(Description of the operation of the ratchet mechanism)

In this embodiment, the stepping motor 7 is stepped by the ratchet mechanism 79 when an overload is applied in the direction in which the toilet seat unit 10 is lowered while being driven, regardless of which direction of the forward and reverse steps the motor is driven. The connection between the motor 7 and the toilet seat unit 10 is cut off. That is, in this embodiment, when the toilet seat unit 10 is floated, since the magnet rotor 75 is rotated in the V direction shown in Fig. 4A, the click portion 74d of the pinion rotor 74 is The pinion rotator 74 follows the magnet rotator 75 and rotates in contact with the wall portion 75f side in the circumferential direction of the tooth portion 75e. Here, when a load is applied to the toilet seat unit 10, the contact pressure of the click part 74d and the wall part 75f of the tooth | gear part 75e becomes high. Although the engagement of both is maintained until the maximum contact pressure can be maintained, in this embodiment, the load that can be transmitted by the driving force of the stepping motor 7 is blocked by the ratchet mechanism 79. Because of the larger construction, the engagement of the two exceeds the maximum contact pressure that can be maintained before the stepping motor takes out. As a result, the ratchet arm 74c extending in the V direction is bent inward, and the click portion 75d exceeds the wall portion 75f. That is, when the toilet seat unit 10 is overloaded, the ratchet mechanism 79 provided between the pinion rotating body 74 and the magnet rotating body 75 functions to rotate the magnet rotating body 75. Although the pinion rotor 74 does not follow the rotation of the magnet rotor 75, the connection between the stepping motor 7 and the toilet seat unit 10 is interrupted.

(Effect of this form)

As explained above, in the toilet seat lifting apparatus 1 of this embodiment, since the drive mechanism 5 which raises and lowers the movable plate 6 with which the toilet seat unit 10 is mounted is electrically comprised, the toilet main body 11 ) Or the inside of the lower surface of the toilet seat 12, there is no need to lift or press the toilet seat unit 10 by hand. Therefore, the burden when cleaning a Western-style toilet can be reduced. Moreover, when the ratchet mechanism 79 raises or lowers the movable plate 6, the connection of the stepping motor 7 and the movable plate 6 is interrupted | blocked against the overload which apply | occur | produces in the direction which moves the movable plate 6 down. Therefore, when sitting on the toilet seat 12, the case where the switch operation which raises the toilet seat unit 10 by mistake is carried out, or in the middle of raising or lowering the toilet seat unit 10, it is wrong to the toilet seat 12. In the case where an excessive force such as crushing is applied, breakage of the drive mechanism 5 can be prevented.

Moreover, since the load which can be transmitted by the driving force of the stepping motor 7 is comprised larger than the overload which transmission is interrupted by the ratchet mechanism 79, the stepping motor 7 which can transmit the load larger than an overload can be used. . Therefore, the drive speed of the movable plate 6 can be raised by reducing the gear of the deceleration lubrication heat 70 or reducing the number of gear teeth. In addition, since the ratchet mechanism 79 functions before the magnet rotor 75 is pulled out, the gear between the gears of the deceleration lubrication train 70 with respect to the inertial force of the magnet rotor 75 caused by the motor being driven out by overload and rotated at high speed. It is possible to prevent damage such as disengagement of teeth or falling out of teeth.

(Other embodiments)

In addition, although the toilet seat unit 10 of the said embodiment is comprised so that it may descend automatically using the stepping motor 7, you may lower the toilet seat unit 10 manually. That is, in the said embodiment, between the stepping motor 7 and the output pinion 80 is connected by the deceleration lubrication heat 70. Therefore, even when the toilet seat unit 10 is lowered manually, the load generated corresponding to the reduction ratio of the deceleration lubrication heat 70 has moderate resistance along with the detent torque of the stepping motor 7 and the toilet seat unit 10. Since this descends slowly, the toilet seat unit 10 can be prevented from hardly colliding with the toilet seat main body 11. Therefore, even if a damper mechanism is not provided, the toilet seat unit 10 and the toilet bowl main body 11 are not damaged.

In addition, the ratchet mechanism 79 of the above-described embodiment, when the movable plate 6 is raised or lowered, the stepping motor 7 and the movable plate 6 against an overload applied in the direction of lowering the movable plate 6. The connection between the stepping motor 7 and the movable plate 6 is cut off when the movable plate 6 is raised or lowered, but the overload applied in the direction of raising the movable plate 6 when the movable plate 6 is raised or lowered. You may comprise so that. At this time, as in the embodiment described above, in the case where the pinion rotor 74 rotates in the W direction when an overload is applied in the direction in which the toilet seat unit 10 descends, the ratchet arm 74c is shown in FIG. On the contrary, it is necessary to protrude in the W direction. In such a configuration, damage to the drive mechanism can be prevented when excessive force such as floating the toilet seat 12 is accidentally applied while the toilet seat unit 10 is being raised or lowered.

Moreover, when the ratchet mechanism 79 raises or lowers the movable plate 6, the ratchet mechanism 79 deals with both the overload which catches in the direction which raises the movable plate 6, and the overload which catches in the direction which raises the movable plate 6. You may comprise so that the connection of the stepping motor 7 and the movable plate 6 may be interrupted | blocked. For example, when realizing using the ratchet mechanism 79 of the said embodiment, by forming the inclined surface which inclined the wall part 75g of the toothed part 75e to the inclined surface opposite to the inclined surface of the wall part 75f, It is possible to pull out the click part 74d inward also with respect to the overload applied in the direction which raises the movable plate 6. As a result, the connection of the stepping motor 7 and the movable plate 6 can be interrupted with respect to both the overload which takes in the direction which moves the movable plate 6, and the overload which takes in the direction which raises the movable plate 6. As shown in FIG.

In this invention, since the drive mechanism which electrically raises or lowers the movable member with which the toilet seat unit was mounted is comprised, it is not necessary to lift or press down the toilet seat unit by hand when cleaning the inside of a toilet main body and the lower toilet seat. Therefore, the burden when cleaning a Western-style toilet can be reduced. Moreover, since it has a torque limiter which cuts off the connection of a drive source and a movable member with respect to the overload which arises when raising or lowering a movable member, breakage of a drive mechanism can be prevented.

1 (a) and 1 (b) are explanatory diagrams showing a state in which a toilet seat is lowered and a state in which a toilet seat is lifted up from the toilet seat body, respectively, in a western toilet unit using the toilet seat lifting apparatus to which the present invention is applied.

(A), (b), (c), (d) are the top view, the front view of the toilet seat lifting apparatus to which this invention is applied, the schematic sectional drawing in the AA 'line | wire of (a) of FIG. And schematic sectional view taken along the line B-B 'of FIG.

(A), (b) is a front view of the state remove | excluding the movable plate and the left slider from the toilet seat lifting apparatus to which this invention is applied, and schematic sectional drawing in the C-C 'line | wire of (a) of FIG. .

(A), (b) is a top view which shows the rotor of the stepping motor used for the toilet seat lifting apparatus to which this invention is applied, and a schematic sectional drawing in the DD 'line | wire of (a) of FIG.

(A) and (b) are explanatory drawing which shows the state in which the movable member which mounted the toilet seat unit in the lowest position in the toilet seat lifting apparatus to which this invention is applied, and explanatory drawing in which a movable member is in the uppermost position. .

<Explanation of symbols for the main parts of the drawings>

1: toilet seat lifting device 2: fixing plate (fixing member)

3: stopper plate 5: driving mechanism

6 movable plate (movable member) 7 stepping motor (drive source)

8: output gear 10: toilet seat unit

11: toilet body 12: toilet seat

41, 42: guide shaft (guide mechanism) 51: right slider

52: left slider 53: rack

70: reduction gear 71, 72, 73: reduction gear

74: pinion rotating body 74a: pinion

75: magnet rotating body 75a: magnet

76: rotor 77: stator

78: fixed shaft 79: ratchet mechanism (torque limiter)

80: output pinion 91: first stopper

92: second stopper

Claims (6)

In the toilet seat lifting apparatus which has the fixing member fixed to the toilet main body side of a Western-style toilet, the movable member with which the toilet seat unit is mounted, and the guide mechanism which guides this movable member to an up-down direction, It has a drive mechanism which can raise or lower the said movable member with respect to the said fixed member, The drive mechanism includes a drive source that is capable of driving the movable member, and a torque limiter that disconnects the connection between the drive source and the movable member against an overload applied when the movable member is raised or lowered. Lifting device. The method of claim 1, And a load that can be transmitted by the driving force of the motor is larger than the overload in which transmission is interrupted by the torque limiter. The method of claim 1, And the torque limiter cuts off the connection between the drive source and the movable member against an overload applied in the direction of lowering the movable member. The method of claim 1, The said seat limiter was comprised by the ratchet mechanism. The method of claim 1, A motor using a motor as said drive source, and has deceleration lubrication heat which decelerates and transmits the driving force of this motor to the said movable member, The toilet seat lifting apparatus characterized by the above-mentioned. The method of claim 1, A motor as a drive source is used, and a stepping motor is used as this motor.