KR20040104389A - An apparatus for lifting close stool - Google Patents

Abstract

PURPOSE: An apparatus for lifting a toilet seat is provided to reduce the burden of cleaning a western style toilet bowl and eliminate an awful feeling of touching a toilet seat unit and detect any abnormality and stopping halfway. CONSTITUTION: The apparatus(1) for lifting a toilet seat has a fixed member(2) fixed to a toilet bowl body side of a western style toilet, a movable member having a toilet seat unit attached thereto and a guide device(42) for guiding the movable member in a longitudinal direction, wherein the apparatus(1) comprises: a driving device(5) capable of lifting the movable member with respect to the fixed member(2) by power transmission; and a position detecting unit for detecting a lifting position of the movable member.

Description

Toilet seat lifting device {AN APPARATUS FOR LIFTING CLOSE STOOL}

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

In a cultured toilet, the toilet seat or toilet lid is rotated about the inside to become a flat and standing posture. For this reason, even if you try to clean the inner side of the upper surface of the toilet main body and the toilet is only a very narrow space is empty, even if you want to clean the part does not get your hands. Thus, a toilet seat lifting device capable of manually floating the toilet seat unit from the toilet seat body has been devised (for example, JP-A-8-177104).

However, in the configuration of lifting the toilet seat unit manually, as in the conventional toilet seat lifting device there is a problem that there is a psychological resistance to lifting the dirty toilet seat unit by hand before cleaning. In addition, lifting the toilet seat unit with a human hand in a narrow space of the toilet is not a simple task because it must be performed in an unnatural posture. In addition, when loading a damper device that lowers the speed when the toilet seat is hard at its own weight, or an electric device that electrically opens and closes the toilet lid, the mechanisms need to be lifted at once. Because of the heavy and fairly inconvenient work.

Therefore, it is conceivable to raise and lower the toilet seat unit by an electric drive mechanism provided with a motor as a drive source.

However, when the electric drive mechanism is adopted, if the lifting operation of the toilet seat unit stops in the middle due to any abnormality, it is dangerous because the lifting and lowering of the toilet seat unit may be suddenly resumed during operation if it is cleaned without knowing it.

In addition, if there is no damper mechanism for generating drag when the toilet unit is lowered by hand, the toilet seat or toilet body may be damaged when the toilet unit is lowered with excessive force. Therefore, when such a damper mechanism is added, there is a problem that the cost of the toilet seat raising device is increased at the same time.

In addition, in the conventional toilet seat lifting device, both pairs of guide portions formed of a guide shaft and a bearing hole are composed of a round bar and a straight hole. When the center position is shifted and the bearing hole is torqued in front, rear, left and right, there is a problem that a jam easily occurs between the guide shaft and the bearing hole.

Such a problem can be solved by high accuracy in the parallelism, dimensions, and position of the guide shaft and the bearing hole in each component and in the assembly process, but there is a problem in that the cost is increased by adopting such measures.

On the other hand, if the tolerance between the guide shaft and the bearing hole is set large to eliminate the jam, the balance between the two pairs of guides is greatly reduced. For example, if you want to elevate the movable mechanism by electric power, There is a problem in that a large and expensive motor that can generate a large torque is required. In addition, there is a problem in that a shift occurs in the movable mechanism and the engagement between the gear train that transmits the driving force of the motor and the movable member side is released.

In order to solve the above problems, a first object of the present invention is to provide a toilet seat lifting apparatus that can prevent the occurrence of an accident even when an abnormality occurs when the toilet seat unit is elevated by electric.

In addition, the second object of the present invention can reduce the burden of floating the toilet seat unit from the toilet seat body, and there is no fear that the toilet seat or toilet seat body is damaged when the toilet seat unit is manually lowered without adding a damper mechanism. It is in providing Chi.

In addition, a third object of the present invention is to provide a toilet seat lifting apparatus capable of smoothly lifting the toilet seat unit even if the guide shaft and the bearing portion are not formed with high precision.

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

(A), (b), (c), (d) are a plan view, a front view, a schematic cross-sectional view of a line A-A 'of FIG. 2 (a), and B-B of FIG. 2 (a). 'Schematic cross section of the line.

Figure 3 (a) (b) is a front view in a state in which the movable plate and the left slider is separated from the toilet seat lifting apparatus to which the present invention is applied, and a schematic cross-sectional view at line C-C 'of Figure 3 (a).

Figure 4 (a) (b) is an explanatory view when viewed from the right side of the right slider of the toilet seat lifting apparatus to which the present invention is applied and a cross-sectional view taken along the line E-E 'of Figure 4 (a).

(A), (b) and (c) are explanatory views when the left side slider of the toilet seat lifting apparatus to which the present invention is applied is viewed from the left side, a cross-sectional view of the line F-F 'of FIG. 5 (a), and G of FIG. 5 (a). -Section of the G 'line.

Fig.6 (a) (b) is explanatory drawing which shows the state in which the movable member which mounts 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 highest value.

※ Explanation of symbols about main part of drawing ※

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

3: stopper plate 5: drive mechanism

6: movable plate (moving member) 7: stepping motor

8: output difference 9: movable mechanism

10: toilet seat unit 11: toilet body

12: toilet seat 14: potentiometer (position detection means)

15: sensor gear 22: vertical plane (received)

41: Right guide shaft (first guide shaft, guide mechanism)

42: left guide shaft (second guide shaft, guide mechanism)

51: Right slider 52: Left slider

53: rack 70: heat reduction

71,72,73: Reduced speed 80: Output pinion

91: first stopper 92: second stopper

510: right bearing part (first bearing part) 520: left bearing part (second bearing part)

511: right through hole (first through hole) 521: left through hole (second through)

525: convex

In order to solve the first problem, the present invention provides a toilet seat lifting apparatus having a fixed member fixed to the side of the main body of the culture toilet, a movable member to which the toilet seat unit is attached, and a guide mechanism for guiding the movable member in the vertical direction. And a drive mechanism capable of elevating and driving the movable member with respect to the fixed member, and position detecting means for detecting a lifted position of the movable member.

In the present invention, since the drive mechanism for driving the movable member with the toilet seat unit is lifted by electric, there is no need to lift the toilet seat unit by hand when cleaning the inside of the toilet body and the bottom of the toilet seat. Therefore, the burden of cleaning the toilet bowl can be reduced, and at the same time, the resistance to touching the toilet seat unit before cleaning can be eliminated. Since the lifting position of the movable member can be detected by the position detecting means, if the movable member does not reach the predetermined position even though the movable member is going to reach the predetermined position, it detects that any abnormality occurs and stops in the middle. can do. Therefore, processing such as clearing of the fact that a problem has occurred or the subsequent operation can be performed. In addition, it is possible to avoid cleaning in the stopped state and to prevent accidents.

In the present invention, it is preferable to have a sensor tooth that rotates in conjunction with the lifting operation of the movable member, and the position detecting means detects the lifting position of the movable member by detecting the rotation of the sensor tooth. In this configuration, since the rotation of the sensor gear is linked to the lifting of the movable member, the lifting position of the movable member can be reliably detected. In addition, if it is a sensor difference, since it stops and rotates to a predetermined place regardless of the lifting distance of a movable member, it can arrange | position in a small space.

In the present invention, the drive mechanism is provided with a gear train for transmitting the driving force of the motor to the movable member, the sensor gear is preferably configured integrally with one of a plurality of gears constituting the gear train. In this way, the number of parts can be reduced, so that the cost and size can be reduced.

In the present invention, the sensor gear preferably rotates less than one rotation while the movable member rises from the lowest position to the highest value. With this arrangement, the position in the entire moving range of the movable member can be detected only by detecting the angular position of the sensor gear.

In the present invention, the position detecting means is preferably a potentiometer for detecting the displacement of the angular position as a resistance change. In this configuration, since the rotary part of the potentiometer only needs to be rotated integrally with the sensor gear, the position detection means can be configured at low cost.

In the present invention to solve the second problem in the toilet seat lifting apparatus having a fixed member fixed to the side of the main body of the toilet, a movable member to which the toilet seat unit is attached, and a guide mechanism for guiding the movable member in the vertical direction. The drive member has a drive mechanism capable of driving up the movable member with respect to the fixed member at least by electric movement, and a stepping motor is used as a drive source of the drive mechanism.

In addition, the toilet seat lifting apparatus according to the present invention is characterized in that the movable member is configured to be manually lowered.

In the present invention, since the driving mechanism for driving the movable member with the toilet seat unit is lifted by the electric motor can reduce the burden when cleaning the toilet bowl and at the same time can eliminate the resistance to touching the toilet seat unit before cleaning. In addition, unlike a DC motor that generates a large torque due to the reverse current during reverse rotation, the stepping motor, in which the rotor revolves during reverse rotation and becomes out of step, is used as a driving source of the drive mechanism. It does not require great force when doing. In addition, even when excessive power is applied to sudden stop or reverse when the motor is being operated, the stepping motor is disassembled, so that the toilet seat, the toilet body and the drive mechanism are not damaged.

In addition, since the stepping motor is used as a driving source of the drive mechanism, the detent torque of the stepping motor acts as a drag when manually lowering the floated toilet seat unit. Therefore, the toilet seat unit is slowly lowered when the toilet seat unit is lowered, so that the toilet seat or the toilet body is not damaged even without providing a damper mechanism. In addition, the rotor of the stepping motor is retracted and revolves even if it is incorrectly and excessively applied. Therefore, the drive mechanism is not damaged and stops without a heavy load even when a hand is inserted between the fixing member and the movable member. Do. In addition, even if the use of the toilet seat lifting device is increased, the toilet seat lifting device can be miniaturized and reduced in cost as much as the damper mechanism is unnecessary.

In the present invention, the drive mechanism is preferably provided with a deceleration lubrication heat to decelerate and transmit the driving force of the stepping motor to the movable member. This configuration can raise the toilet seat unit at an appropriate speed. In addition, the load generated in response to the reduction ratio of the deceleration lubrication heat when the lowered toilet seat unit is lowered manually acts as a proper drag along with the detent torque of the stepping motor. Therefore, since the toilet seat unit is slowly lowered when the toilet seat unit is lowered, the toilet seat or the toilet body may not be damaged even if a damper mechanism is not provided. In addition, the rotor of the stepping motor is retracted and revolves even if it is incorrectly and excessively applied. Therefore, the drive mechanism is not damaged and stops without a heavy load even when a hand is inserted between the fixing member and the movable member. Do.

In order to solve the third problem, in the present invention, the fixing member is fixed to the side of the side of the toilet, and the first guide shaft and the second guide shaft extending substantially parallel upward from the left and right sides of the fixing member side, A first bearing portion and a second bearing portion into which the first guide shaft and the second guide shaft enter, and a toilet seat having a movable mechanism for lifting along the first guide shaft and the second guide shaft while holding the toilet seat unit; In the apparatus, the first bearing portion is in contact with the first guide shaft in both the transverse direction and the front and rear directions, and the second bearing portion is in contact with the second guide shaft in the front and rear directions while being transversely. In a direction in contact with the second guide shaft.

In the present invention, since the second bearing portion is in a foldable state in the transverse direction with respect to the second guide shaft, the second bearing portion is in a state of being in contact with or in a state of being separated by the posture of the movable mechanism. For this reason, the contact state of a 2nd guide shaft and a 2nd bearing part can follow the attitude | position of the movable mechanism prescribed | regulated by the 1st guide shaft and a 1st bearing part. Therefore, even if the accuracy of the parallelism, dimensions, and position of the guide shaft and the bearing hole is slightly lower, no excessive force is applied between the first guide shaft and the first bearing portion and between the second guide shaft and the second bearing portion. In addition, even when torque is applied to the movable mechanism in front and rear, left and right, no excessive force is applied between the first guide shaft and the first bearing portion and between the second guide shaft and the second bearing portion. In addition, the movement of the toilet seat unit is smooth since no jamming occurs between the first guide shaft and the first bearing hole and between the second guide shaft and the second bearing hole when the toilet seat unit is lifted up and down.

In this invention, it is preferable to have a drive mechanism which transmits the driving force of an up-down direction with respect to the position closer to the said 1st bearing part rather than the said 2nd bearing among the said movable mechanisms. In this way, the toilet seat unit can be lifted by electric, thereby reducing the burden when cleaning the toilet bowl and at the same time eliminating the resistance to touching the toilet seat unit before cleaning. In addition, since the driving force is transmitted to the movable mechanism from the side close to the first bearing portion, which is mainly responsible for defining the position of the movable mechanism, the engagement between the gear train that transmits the driving force of the motor and the movable mechanism side is not released. In addition, the contact state between the second guide shaft and the second bearing portion follows the posture of the movable mechanism defined by the first guide shaft and the first bearing portion, and therefore, between the first guide shaft and the first bearing portion and the second guide shaft. Since no excessive force is applied between the and the second bearing part, a motor capable of generating the minimum torque required may be used.

In the present invention, when both the first guide shaft and the second guide shaft are composed of a round rod or a round pipe, the round portion of the first through hole penetrating the movable mechanism in the vertical direction with respect to the first bearing portion. The second bearing portion may have a long axis or an ellipse portion in the transverse direction of the long axis of the second through hole penetrating the movable mechanism in the vertical direction.

In this case, it is preferable that the second bearing part is formed in the upper part of the second through hole, and the lower part of the second bearing part in the second through hole has a larger inner diameter than the second guide shaft. When the contact portion of the second guide shaft and the second bearing portion is suppressed to the minimum necessary, the contact state between the second guide shaft and the second bearing portion is easy to the attitude of the movable mechanism defined by the first guide shaft and the first bearing portion. Can follow. Therefore, the movement of the toilet seat unit can be made smoother.

In the present invention, the rear surface of the movable mechanism is formed with a convex portion projecting backward from the lower portion at the side in which the second bearing portion is formed in the transverse direction, and the fixing member has a lower end side of the movable mechanism at the rear of the movable mechanism. It is preferable that the receiving surface receiving the convex portion is formed when inclined. In such a configuration, even when the lower end of the movable mechanism is shaken backward on the side where the second bearing portion is formed, the shaking is suppressed to a certain extent by touching the convex portion on the movable member side against the receiving surface on the movable member side. Therefore, the movable mechanism does not tilt much.

An example of a toilet seat lifting mechanism to which the present invention is applied will be described with reference to the drawings.

(Configuration of Toilet Unit)

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

As shown in Fig. 1 (a), the culture toilet unit of the present embodiment has a toilet seat main body 11, a toilet seat 12 opened and closed on the toilet seat 11, and a toilet seat 13 opened and closed on the toilet seat 12. It has a toilet seat 12 and the toilet seat 13 is rotated about the inside is a flat and standing posture. Here, the toilet seat 12 and the toilet lid 13 are integrated as a toilet seat unit 10, and the toilet seat unit 10 has a speed when the toilet seat 12 and the toilet lid 13 are flattened to their own weight as necessary. In some cases, a damper device for mitigating the pressure and a transmission device for electrically opening and closing the toilet lid are built in.

In any of these cases, the toilet seat 12 (the toilet seat unit 10) is lifted from the toilet seat body 11 to clean the upper surface of the toilet seat body 11 to the inside as shown in FIG. 1 (b). An electric toilet seat raising and lowering device 1 is constructed so that it is possible.

(Configuration of toilet seat lifting device)

(A), (b), (c), (d) are a plan view, a front view, a schematic cross-sectional view of a line A-A 'of FIG. 2 (a), and B-B of FIG. 2 (a). 'Schematic cross section of the line. (A) (b) is a front view of the state which isolate | separated the movable hood and the left slider from the toilet seat lifting apparatus to which this invention is applied, and a schematic sectional view of the C-C 'line | wire of FIG. 3 (a). (A) and (b) are explanatory views when the right side slider of the toilet seat lifting apparatus to which the present invention is applied is seen from the right, and a cross-sectional view taken along the line E-E 'of Fig. 4 (a). (A), (b) and (c) are explanatory views when the left side slider of the toilet seat lifting apparatus to which the present invention is applied is viewed from the left side, a cross-sectional view of the line F-F 'of FIG. 5 (a), and G of FIG. 5 (a). -G 'is a cross section of the line.

As shown in Fig. 2 (a) to (c) and Fig. 3 (a) (b), Fig. 4 (a) and Fig. 5 (a), the toilet seat lifting apparatus 1 of the present embodiment has a valve body 11 (Fig. 1). A fixed plate 2 (fixing member) having a fixed surface 21 to an upper surface portion thereof, and an inverse L fixed to an upper portion of a vertical surface 22 bent upward from the rear end of the fixed plate 2. Circumferential right guide shaft 41 and left guide shaft spanned between the stopper plate 3 of the shape, 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 the left slider 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. In addition, the movable plate 6 (movable member) is attached to cover the front and upper surfaces of the left and right sliders 51 and 52, and the left and right sliders 51, 52 and the movable plate 6 are integrally formed. The movable mechanism 9 is comprised.

The right slider 51 and the left slider 52 have a substantially rectangular parallelepiped shape and the right through hole 511 (first through hole) into which the right guide shaft 41 and the left guide shaft 42 are inserted, respectively. It has a left through hole 521 (second through hole).

In this embodiment, the right guide shaft 41 is composed of a round pipe as shown in Figs. 4A and 4B, and its outer circumferential shape is round. The right through hole 511 is a circle having the same inner diameter as the right guide shaft 41, and the right bearing portion 510 (first bearing portion) whose entirety in the axial direction is in contact with the right guide shaft 41. Consists of. Accordingly, the right bearing portion 510 is in contact with the entire circumference of the right guide shaft 41.

On the other hand, in the left through hole 521 as shown in FIG. The portion 520 is in contact with the left guide shaft 42 in the front-rear direction but in a foldable state with respect to the second guide shaft 42 in the lateral direction. That is, the left bearing part 520 has a large tolerance between the left guide shaft 42 and the left guide shaft 42 in the lateral direction, and is brought into or out of contact by the posture of the movable mechanism 9. In addition, the left through hole 521 is a lower portion of the left bearing portion 520 as shown in Fig. 5 (a) (c) 522 is a larger diameter than the left guide shaft 42, the left guide shaft 42 Not in contact with

The convex portion 525 protrudes backward from the lower end portion at the side where the second bearing portion 520 is formed on the rear surface of the left slider 52, while the movable part When the lower end side of 9) is inclined backward, the receiving surface which receives the convex part 525 is comprised.

In the toilet seat lifting apparatus 1 configured as described above, 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 along the guide shafts 41 and 42, the toilet seat unit 10 fixed to the movable plate 6 will also move together.

Moreover, in this form, the electric drive mechanism 5 which drives this right slider 51 in the up-down direction with respect to the right slider 51 is comprised, The right slider 51 is moved up and down by this drive mechanism 5. When driven, the left slider 52, the movable plate 6 and the toilet seat unit 10 also move up and down.

As this drive mechanism 5, in this embodiment, the rack 53 is first formed in the left surface of the right slider 51 over the whole range of the up-down direction.

In addition, in the space fitted by the left and right guide shafts 41 and 42, the stepping motor 7 capable of rotating in the positive and negative directions as the driving source of the driving mechanism 5, and the reduction gear that transmits the driving force of the stepping motor 7 An output pinion 80 which rotates and drives through the deceleration lubrication heat 70 is arranged, and the output pinion 80 meshes with the rack 53 of the right slider 51. The stepping motor 7 is disposed just below the stopper plate 3, and the output pinion 80 is disposed at an approximately center position in the height direction of the toilet seat raising and lowering device 1.

The deceleration lubrication heat 70 includes a first reduction gear 71 having a large gear that meshes with a pinion formed on a rotation shaft of the stepping motor 7, and a large gear that meshes with the first reduction gear 71. A third reduction gear 73 having a second reduction gear 72, a large reduction gear engaged with the small reduction gear of the second reduction gear 72, and a small reduction gear of the third reduction gear 73; The physics includes an output difference 8 having a large diameter difference 81, and an output pinion 80 is formed at one end of the output difference 8.

Here, since the movable plate 6 is attached to the right slider 51 and the left slider 52 so as to cover the front and the upper surfaces thereof, the left slider 52 and the movable plate 6 in accordance with the elevation of the right slider 51. Are integrally driven.

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

As shown in Fig. 3 (b), a large diameter gear 81 is fitted to the output difference 8, and a small diameter gear 82 is formed at an end opposite to the output pinion 80. The sensor gear 15 which meshes with the small diameter gear 82 is arrange | positioned at this. The end of the rotation shaft 105 of the sensor gear 15 protrudes from the vertical surface 22 of the fixed plate 2 to the rear side. The protruding portion 101 of the rotary shaft 105 has a D-shaped cross section, and the protruding portion 101 is fitted with a D-shaped hole of the rotary portion of the potentiometer 14. For this reason, when the rotating shaft 105 of the sensor tooth 15 rotates, the rotary part of the potentiometer 14 will rotate integrally.

Here, the sensor gear 15 is composed of the number of teeth into which the rotation enters less than one rotation while the output pinion 80 drives the entire range of the rack 53 of the right slider 51. Therefore, the potentiometer 14 detects the displacement of the angular position of the rotary shaft (rotary part) of the sensor gear 15 as a resistance change and outputs a signal accordingly, so that the position of the right slider 51 in the up-down direction, that is, the toilet seat unit The lifting position of (5) can be detected.

(Configuration of Stopper)

2 (c) (d), 4 (a) and 5 (a), the back sides of the sliders 51 and 52 on the left and right sides of the fixed plate 2 are opposed to the vertical surface 22 of the respective angles. (Iv) The holes 55 are opened, respectively. In each of the respective holes 55, the coupling member 95 is disposed so as to be able to advance and retreat in the horizontal direction, and therein, a spring for pressing the coupling member 95 toward the vertical surface 22 of the fixing plate 2 ( 96) is being deployed. On the other hand, when the sliders 51 and 52 on the left and right are moved up and down on the vertical surface 22 of the fixing plate 2, the leading end of the coupling member 95 enters the lower portion of the line through which the coupling member 95 passes. Lower concave portion 97 is formed left and right. On the other hand, in the upper position, the upper concave portion 98 into which the leading end of the coupling member 95 enters is formed left and right.

For this reason, the engaging member 95 and the spring 96 of the slider 51 and 52 side of the left and right, and the lower recess part 97 of the vertical surface 22 side of the fixing plate 2 are the toilet seat 12 (the toilet seat). It functions as a 1st stopper 91 which prescribes the holding | maintenance position of the slider 51, 52 on either side when the unit is lowered. In addition, the coupling member 95 and the spring 96 on the left and right sliders 51 and 52 side, and the upper concave portion 98 on the vertical surface 22 side of the fixing plate 2, have a toilet seat 12 (seat unit). It functions as a 2nd stopper 92 which prescribes the holding | maintenance position of the slider 51 and 52 of right and left when raising (). In addition, in any one of the first stopper 91 and the second stopper 92, when the coupling member 95 is engaged with the lower recess 97 and the upper recess 98, a click feeling is generated.

(Explanation of lifting operation of toilet seat)

6 (a) and 6 (b) are explanatory diagrams showing a state in which the movable member on which the toilet seat unit is mounted is at the lowest position in the toilet seat lifting apparatus to which the present invention is applied, and the explanatory diagram in which the movable member is at the highest value. 6 (a) and 6 (b) correspond to a cross section taken along the line A-A 'in FIG. 2 (a).

The toilet seat lifting apparatus 1 of this embodiment fixes the fixed plate 2 to the upper surface portion of the valve body 11 (see FIG. 1) while the toilet seat unit 10 is disposed on the upper surface 60 of the movable plate 6. It is used in the state where it is attached.

Before starting cleaning etc., the toilet seat 12 is in the upper surface of the toilet seat 11, and the toilet seat unit 10 and the movable plate 6 are in the lowest position like FIG.6 (a). In this state, the distal end of the engaging member 95 engages with the lower recess 97 of the vertical surface 22 of the fixed plate 2 and functions as the first stopper 91. Therefore, in this lowest position, the toilet seat unit 10 does not unexpectedly rise due to the coupling force in the first stopper 91, the detent torque of the stepping motor 7 and the weight of the toilet seat unit 10 itself. In this state, the potentiometer 14 outputs the meaning that the toilet seat unit 10 is at the lowest position.

In this state, if the toilet seat unit 10 is to be opened to start cleaning, the stepping motor 7 rotates in a predetermined number of steps, or a predetermined time and 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 through the deceleration lubrication heat 70, and as shown in FIG. 6 (b), the output pinion 80 passes through the rack 53 to the right slider ( 51) increase. Therefore, the coupling at 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.

The stepping motor 7 stops after the toilet seat unit 10 is raised until the engagement at the second stopper 92 is performed. In the meantime, the small difference 82 of the output difference 8 rotates the sensor tooth 15, and since the output of the potentiometer 14 changes, it can detect that the toilet seat unit 10 rose to the predetermined position from the output. Can be. The lowering of the toilet seat unit 10 to a predetermined position can be held by the click sound generated by the second stopper 92. In the state where the toilet seat unit 10 is stopped at the highest value, the toilet seat unit 10 does not fall to its own weight due to the engagement force of the second stopper 92 and the detent torque of the stepping motor 7. .

In this case, when the toilet seat unit 12 scheduled to be driven down does not reach the lowest position even when the predetermined time or the predetermined number of steps is driven, the toilet seat unit 10 stops during ascending under certain circumstances. Although it can be seen that the click sound by the two stoppers 92 does not occur, it can also be detected by the output value of the potentiometer 14. Therefore, when a problem occurs, the meaning can be notified based on the detection result by the potentiometer 14. In addition, the feedback of the output of the potentiometer 14 to the driving circuit (not shown) of the stepping motor 7 is a process such as resetting the operation of the stepping motor 7 so that subsequent operation does not start unnecessarily. Can be done.

(Down operation of toilet seat unit manually)

In the toilet seat lifting apparatus 1 of this embodiment, after the cleaning is completed, the toilet seat unit 10 at the highest value can be lowered to the lowest position manually. In this case, the toilet seat unit 10 is pushed down by human force without supplying it to the stepping motor 7.

At this time, the lowering of the right slider 51 is transmitted to the stepping motor 7 through the output pinion 80 through the deceleration lubrication heat 70 through the rack 53, but in this embodiment, the motor used as the driving source is the stepping motor ( 7), the step out of stepping motor 7 occurs. In this embodiment, since the motor used as the driving source is the stepping motor 7 and is connected to the stepping motor 7 from the output pinion 80 by the deceleration lubrication heat 70, when the toilet seat unit 10 is lowered manually, Since the detent torque of the stepping motor 7 and the load of the deceleration lubrication heat 70 act as excessive stresses, the toilet seat unit 10 lowers slowly.

Even when such a lowering operation of the toilet seat unit 10 is performed manually, the fact that the toilet seat unit 10 descends to a predetermined position can be recognized as a click sound generated by the first stopper 91. Moreover, since it can detect also in the output of the potentiometer 10, the meaning which descended to the top of the toilet seat unit 10 based on the output result of the potentiometer 10 can be hold | maintained.

(Effect of this form)

As described above, in the toilet seat raising and lowering apparatus 1 of this embodiment, since the stepping motor 7 is easily used as a driving source of the driving mechanism 5, excessive force is applied during the electric operation unlike in the case of using a DC motor. You can easily stop the operation by adding. In addition, since the stepping motor 7 is used as the driving source and the stepping motor 7 to the output pinion 80 are connected by the deceleration lubrication heat 70, when the modulation unit 10 is lowered manually, stepping is performed. The detent torque of the motor 7 and the load of the deceleration lubrication heat 70 act as an appropriate drag force. Therefore, since the toilet seat unit 10 is slowly lowered when the heated toilet seat unit 10 is lowered manually, the toilet seat 12 or the toilet seat 11 is not damaged and is safe even without providing a damper mechanism. In addition, even if excessive force is applied by mistake, the rotor of the stepping motor is out of step and revolves, so that the driving mechanism is not damaged and stops without heavy load even if the hand is accidentally inserted between the fixing member and the movable member. Do. Furthermore, even if the ease of use of the toilet seat lifting device 1 is increased, the toilet seat lifting device 1 can be miniaturized and reduced in cost as much as the damper mechanism is unnecessary.

In this embodiment, the position of the toilet seat unit 10 can be monitored by the potentiometer 14 which detects the movement of the sensor gear 15. Therefore, if the lifting operation is not performed normally, the meaning of the meaning is maintained. In addition, appropriate treatment can be performed. In addition, since the cleaning operation and the like in the state where the raising and lowering of the toilet seat unit 10 is stopped can be avoided, an accident can be prevented in advance.

Further, the potentiometer detects the rotation of the sensor tooth 15 by using the sensor tooth 15 that rotates in association with the movable hood 6. Therefore, the position of the yarn moving hood 6, that is, the position of the toilet seat unit 10 can be detected reliably. In addition, the potentiometer 14 only needs to rotate the rotary unit integrally with the sensor gear 15, so that the position of the toilet seat unit 10 can be performed at low cost. In addition, since the sensor gear 15 rotates at a predetermined position regardless of the lifting distance of the movable plate 6 (the toilet seat unit 10), it can be arranged in a small space.

In addition, since the sensor gear 15 rotates less than one rotation while the movable plate 6 (the toilet seat unit 10) rises from the lowest position to the highest value, only the sensor gear 15 detects the angular position of the sensor gear 15. The position can be detected in the entire moving range of the movable plate 6.

In addition, in the toilet seat lifting apparatus 1 of the present embodiment, since the stepping motor 7 easily removes stepping as a driving source of the driving mechanism 5, unlike the case of using a DC motor, the toilet seat unit ( 10) can be lowered. In addition, since the stepping motor 7 is used as a driving source and the stepping motor 7 to the output pinion 80 are connected by the deceleration lubrication heat 70, when the toilet seat unit 10 is lowered manually, stepping is performed. The detent torque of the motor 7 and the load of the deceleration lubrication heat 70 act as an appropriate drag force. Therefore, since the toilet seat unit 10 is slowly lowered when the toilet seat unit 10 is manually lowered, the toilet seat 12 or the toilet seat 11 is not damaged even when a damper mechanism is not provided and is safe. In addition, even when the wrong and excessive force is applied, the rotor of the stepping motor 7 is out of step and revolves, so that the drive mechanism 5 is not damaged and at the same time, even if the hand is incorrectly caught between the fixing member and the movable member. It is safe because it stops without heavy load. In addition, even if the ease of use of the toilet seat lifting device 1 is increased, the toilet seat lifting device 1 can be miniaturized and reduced in cost as much as the damper mechanism is unnecessary.

In this embodiment, since the position of the toilet seat unit 10 can be monitored by the potentiometer 14 which detects the movement of the sensor gear 15, if the lifting operation is not performed normally, Appropriate treatment can be performed.

In addition, during the lifting operation, the left bearing portion 510 is in contact with the left guide shaft 41 around its circumference, and the right bearing portion 520 is in contact with the right guide shaft 42 in the front-rear direction. Therefore, the position of the movable mechanism 9 is defined in both the front-back direction and the lateral direction.

Here, the left bearing part 520 is in a state where it is foldable in the transverse direction with respect to the left guide shaft 42. That is, the left bearing part 520 is in the contacted state or the separated state by the posture of the movable mechanism 9 in the horizontal direction. For this reason, the contact state of the left guide shaft 42 and the left bearing part 520 follows the posture of the movable mechanism 9 defined by the right guide shaft 41 and the right bearing part 52. Accordingly, the right guide shaft 41 and the right side may be reduced even if the accuracy of parallelism, dimensions, and positions of the left and right guide shafts 41 and 42 and the left and right bearing portions 50 and 520 in each component is somewhat low. No excessive force is applied between the bearing portion 510 and between the left guide shaft 42 and the left bearing portion 520. In addition, even when torque of front, rear, right and left is applied to the movable mechanism 9, excessive force is not applied between the right guide shaft 41 and the right bearing portion 510 and between the left guide shaft 42 and the left bearing portion 520. Do not. Furthermore, when the toilet seat unit 2 is elevated, the toilet seat unit 2 does not have a jam between the right guide shaft 41 and the right bearing part 510 and between the left guide shaft 42 and the left bearing part 520. The movement is smooth.

In the left through hole 521, the lower portion 522 of the left bearing portion 520 has a larger inner diameter than the left guide shaft 42, so that the left guide shaft 42 contacts the left bearing portion 520. The part can be suppressed to the minimum necessary. Therefore, the contact state between the left guide shaft 42 and the left bearing portion 520 can easily follow the posture of the movable mechanism 9 defined by the right guide shaft 41 and the right bearing portion 510. .

Therefore, the movement of the toilet seat unit 2 can be made smoother.

Further, even when the lower end portion is shaken backward on the left side of the movable mechanism 9, the shaking is restrained within a certain range by the convex portion 525 on the movable mechanism 9 side touching the vertical surface 22 of the fixing member 2. do. Therefore, even if the center of the movable mechanism 9 is changed by the opening / closing state of the toilet seat 12 or the toilet lid 13, the movable mechanism 9 does not incline greatly.

Moreover, since the drive mechanism 5 which moves the movable mechanism 9 up and down is comprised, the burden when cleaning a culture toilet can be reduced, and the resistance to touching the toilet seat unit 2 before cleaning is removed. Can be.

In addition, the driving mechanism 5 transmits the driving force in the vertical direction to the right slider 51 in which the right bearing portion 510 is formed, rather than the left bearing portion 520 of the movable mechanism 9. Since the right bearing part 510 functions as a reference for defining the position of the movable mechanism 9, the output pinion 80 for transmitting the driving force of the stepping motor 7 and the rack of the right slider 51 ( 53 is not disengaged. In addition, when the movable mechanism 9 is moved up and down, the contact state between the left guide shaft 42 and the left bearing portion 520 is movable member 9 defined by the right guide shaft 41 and the right bearing portion 510. Since the force is not applied between the right guide shaft 41 and the right bearing part 510 and between the left guide shaft 42 and the left bearing part 520, the motor can follow the posture of the posture. The stepping motor 7 may be used.

In addition, in the toilet seat lifting apparatus 1 of the present embodiment, since the stepping motor 7 is easily used as a driving source of the driving mechanism 5, unlike the case of using a DC motor, the toilet seat unit is operated manually without a large force. 10) can be lowered. In addition, since the stepping motor 7 is used as a driving source and the stepping motor 7 to the output pinion 80 are connected by the deceleration lubrication heat 70, when the toilet seat unit 10 is lowered manually, stepping is performed. The detent torque of the motor 7 and the load of the deceleration lubrication heat 70 act as an appropriate drag force. Therefore, since the toilet seat unit 10 is slowly lowered when the heated toilet seat unit 10 is lowered manually, the toilet seat 12 or the toilet seat 11 is not damaged even when the damper mechanism is not provided. In addition, even when excessive force is applied during the electric operation, the rotor of the stepping motor 7 is out of step and revolves, so that the drive mechanism is not damaged and the hand is incorrectly placed between the fixing plate 2 and the movable plate 6. Even if it is inserted, it is safe because it stops without heavy load. In addition, even if the ease of use of the toilet seat lifting device 1 is increased, the toilet seat lifting device 1 can be miniaturized and reduced in cost as much as the damper mechanism is unnecessary.

In this embodiment, the position of the toilet seat unit 10 can be monitored by the potentiometer 14 which detects the movement of the sensor gear 15. Therefore, when the lifting operation is not performed normally, the meaning of the meaning is notified. Also, appropriate treatment can be performed.

(Other Examples)

In addition, in the above embodiment, although the movement of the sensor gear 15 is monitored by the potentiometer 14, the position of the detection port toilet seat unit 10 is monitored, but the deceleration wheels 71 and 72 constituting the deceleration lubrication heat 70. The position of the toilet seat unit 10 may be monitored by detecting the rotation angle position of any one of (73). In this case, since the sensor gear is integrally formed with one of the plurality of gears constituting the deceleration lubrication train 70, the number of parts can be reduced, and the cost and size can be reduced. Moreover, you may obtain the positional information of the toilet seat 12 from the position of the up-down direction of the right-side slider 51 which is driven up and down, or the rotation of the output pinion 8. As shown in FIG. In addition, although the potentiometer 14 was used for monitoring the position of the toilet seat unit 10 in the said Example, you may monitor the position of the toilet seat unit 10 with sensors, such as a hall IC.

In the above embodiment, the right bearing portion 510 is in contact with the entire circumference of the right guide shaft 41, but may be in contact with the right guide shaft 41 only in the front-rear direction and the left-right direction. In addition, the right bearing part 510 may be in contact with the right guide shaft 41 only at two positions in the axial direction of the right guide shaft 41.

As described above, in the present invention, since the drive mechanism for driving the movable member with the toilet seat unit is lifted up by electric power, the burden of cleaning the toilet bowl can be reduced, and at the same time it touches the toilet seat unit before cleaning. You can get rid of resistance. In addition, since the lifting position of the movable member can be detected by the position detecting means, it is possible to detect that any abnormality occurs and stop in the middle. Therefore, it is possible to perform a procedure such as clearing the meaning of the problem or clearing the subsequent operation. In addition, it is possible to avoid the cleaning work in the intermediate stop state, thereby preventing accidents.

In addition, in the present invention, since the driving mechanism for driving up the movable member with the toilet seat is electrically driven, the burden of cleaning the toilet bowl can be reduced, and at the same time, the resistance to touching the toilet seat unit before cleaning is eliminated. Can be. In addition, unlike a DC motor that generates a large torque due to a reverse current during reverse rotation, a stepping motor in which the motor revolves during reverse rotation and out of step occurs is used as a driving source of the drive mechanism. When you do, you do not need great power. In addition, since the stepping motor is used as a drive source of the drive mechanism, the titent torque of the stepping motor acts as a drag when manually lowering the floated toilet seat unit. Therefore, since the toilet seat unit is slowly lowered when the toilet seat unit is lowered, the toilet seat or the toilet body is not damaged even if a damper mechanism is not provided. In addition, the rotor of the stepping motor is retracted and revolves even if it is incorrectly and excessively applied, so that the drive mechanism is not damaged and stops without being subjected to heavy load even if the hand is accidentally inserted between the fixing member and the movable member. It is safe. In addition, even if the use of the toilet seat lifting device is increased, the toilet seat lifting device can be miniaturized and reduced in cost as much as the damper mechanism is unnecessary.

In addition, in the present invention, the second bearing portion is in contact with or away from the posture of the movable mechanism in the lateral direction, so that the contact state between the second guide shaft and the second bearing portion is determined by the first guide shaft and the first bearing portion. Follow the posture of the movable mechanism specified by Therefore, even if the accuracy of the parallelism, dimensions, and position of the guide shaft and the bearing hole is slightly lower, no excessive force is applied between the first guide shaft and the first bearing portion and between the second guide shaft and the second bearing portion. In addition, even when the front, rear, right and left torque is applied to the movable mechanism, no excessive force is applied between the first guide shaft and the first bearing portion and between the second guide shaft and the second bearing portion. In addition, when the toilet seat unit is lifted and lowered, no movement occurs between the first guide shaft and the first bearing hole and between the second guide shaft and the second bearing hole, so that the movement of the toilet seat unit is smooth.

Claims (13)

In the toilet seat lifting apparatus having a fixed member fixed to the side of the toilet main body of the culture toilet, a movable member to which the toilet seat unit is attached, and a guide mechanism for guiding the movable member in the vertical direction, And a drive mechanism capable of elevating and driving the movable member with respect to the fixed member, and position detecting means for detecting a lifting position of the movable member. The method of claim 1, It has a sensor gear that rotates in conjunction with the lifting operation of the movable member, And the position detecting means detects the lifting position of the movable member by detecting the rotation of the sensor gear. The method of claim 2, The drive mechanism has a gear train for transmitting the driving force of the motor to the movable member, And the sensor gear is integrally formed with one of a plurality of gears constituting the gear train. The method of claim 2, And the sensor gear performs rotation of less than one rotation while the movable member rises from the lowest position to the highest value. The method of claim 2, And the position detecting means is a potentiometer for detecting a displacement of the angular position as a resistance change. In the toilet seat lifting apparatus having a fixed member fixed to the side of the toilet main body of the culture toilet, a movable member to which the toilet seat unit is attached, and a guide mechanism for guiding the movable member in the vertical direction, And a stepping motor as a drive source of said drive mechanism, said drive mechanism having a drive mechanism capable of driving up and moving said movable member at least with respect to said fixed member. The method of claim 6, Stool lifting device characterized in that the movable member is configured to be manually lowered. The method of claim 6, And the drive mechanism includes a deceleration lubrication heat for decelerating and transmitting the driving force of the stepping motor to the movable member. The fixing member fixed to the side of the toilet body of the culture toilet, the first guide shaft and the second guide shaft extending substantially parallel upward from the left and right sides of the fixing member side, and the first guide shaft and the second guide shaft In the toilet seat lifting apparatus having a movable mechanism for lifting up and down along the first guide shaft and the second guide shaft in a state in which the first bearing portion and the second bearing portion are formed to hold the toilet seat unit, The first bearing portion is in contact with both the transverse direction and the front-rear direction with respect to the first guide shaft, And the second bearing portion is in contact with the second guide shaft in the front-rear direction and in a foldable state with respect to the second guide shaft in the lateral direction. The method of claim 9, And a drive mechanism for transmitting a driving force in the vertical direction to a position closer to the first bearing portion than the second bearing among the movable mechanisms. The method of claim 9, The first guide shaft and the second guide shaft are both composed of a round rod or round pipe, The first bearing portion is a round portion of the first through hole penetrating the movable mechanism in the vertical direction, And said second bearing portion is a mandrel portion or an ellipse portion of the second through-hole penetrating the movable mechanism in the vertical direction in the transverse direction. The method of claim 11, The second bearing portion is formed in the upper portion of the second through hole, The lower portion of the second bearing portion in the second through hole has an inner diameter larger than that of the second guide shaft. The method of claim 12, The back surface of the movable mechanism is formed with a convex portion protruding backward from the lower portion at the side where the second bearing portion is formed in the transverse direction, And the receiving member is provided with a receiving surface receiving the convex portion when the lower end side of the movable mechanism is inclined backward from the rear of the movable mechanism.