KR102201707B1 - Sanitary Footrest - Google Patents

Abstract

The present invention relates to a sanitary footrest apparatus. The sanitary footrest apparatus of the present invention includes: a housing receiving a cleaning part therein; a first footrest which is arranged on an upper side of the housing and vertically movable; and a second footrest which is arranged on the upper side of the housing and vertically movable independently from the first footrest, wherein at least one of the first footrest and the second footrest is positioned in an upper portion at a predetermined time. Therefore, the sanitary footrest apparatus can automatically clean the footrests.

Description

Sanitary Footrest}

The present invention relates to a sanitary scaffolding device, and more particularly, to a sanitary scaffolding device capable of hygienic management of the scaffolding.

In general, various scaffolds are used where hygiene needs to be maintained. For example, a footrest is used for cleanliness, hygiene, and quarantine in front of men's urinals in toilets, in front of wash basins, entrances to buildings, and exit gates at airports.

However, it is difficult to maintain hygiene since conventional stools are usually in the form of cloth. In addition, in order to maintain hygiene, the footrest must be manually cleaned by a person regularly.

For example, a case of a conventional male urinal will be described as follows.

The urinal has a shape with an open front vertically. Therefore, if men are not careful when urinating, urine will splash out of the urinal. Urine mainly splashes in front of the urinal.

In order to solve this problem, efforts are made to install a guide plate on the upper wall of the urinal so that the user approaches the urinal. However, in this method, there is a limit to preventing urine from splashing out of the urinal.

Therefore, it is possible to install a footrest in front of the urinal. However, even when installing a scaffold, it is difficult to maintain the scaffold hygienically, or a person must regularly clean it.

The present invention is to solve the above-described problem.

An object of an embodiment of the present invention is to provide a sanitary scaffolding device capable of hygienic management of the scaffolding.

An object of an embodiment of the present invention is to provide a sanitary scaffolding device capable of automatically washing a scaffolding.

An object of an embodiment of the present invention is to provide a sanitary scaffolding device that is convenient for installation and maintenance.

The subject of the present invention is not limited to the problems mentioned above, and other problems that are not mentioned may be understood by those skilled in the art from the following description.

The sanitary scaffolding apparatus according to an embodiment of the present invention includes: a first link; a first scaffold including a second link and a link 2-2 rotatably connected to both sides of the first link; A second link including a second link and a second link and a second link rotatably connected to both sides of the second link, and a second footrest disposed alternately with the first footrest; A first shaft connected so as to constrain rotation with the second link of the first scaffold, and connected so that rotation with the second link of the second scaffold is not restricted; A second shaft connected so as not to restrict rotation with the 2-2 link of the first footrest, and connected so that rotation with the 2-2 link of the second footrest is restricted; It includes a housing in which the washing water is accommodated, the first footrest and the second footrest are installed, and the first footrest is moved up and down by rotation of the first axis, and the second footrest by rotation of the second axis Can be moved up and down.

According to an exemplary embodiment, the first shaft and the second shaft are provided with a circular cross-section and a non-circular cross-section, and the circular cross-section has a second link of the first footrest and a second link of the second footrest. Links are coupled, and the 2-1 link of the first footrest and the 2-2 link of the second footrest may be coupled to the non-circular cross-section.

According to an exemplary embodiment, a first shaft gear unit and a second shaft gear unit are provided on the first shaft and the second shaft, respectively, and a first shaft rack is provided on the first shaft gear unit and the second shaft gear unit. The gear unit and the second axis rack gear unit are respectively connected, the first axis rack gear unit and the second axis rack gear unit each include a toothed unit and a beach type unit, and the first axis rack gear unit and the second axis The rack gear part is screwed with the third shaft, and the screwing direction of the first shaft rack gear part and the screwing direction of the second shaft rack gear part are provided opposite to each other, and the first shaft and The second axis may selectively rotate.

According to an exemplary embodiment, the first shaft gear portion and the second shaft gear portion may each include a tooth portion and a beach portion.

According to an exemplary embodiment, a third shaft gear may be provided on the third shaft, and a fourth shaft gear provided on a fourth shaft may be engaged with the third shaft gear.

According to an exemplary embodiment, a fourth shaft drive gear may be provided on the fourth shaft, and a main drive gear provided on a rotation shaft connected to an actuator may be engaged with the fourth shaft drive gear.

According to an exemplary embodiment, the housing may include a water housing accommodating the washing water and a base housing accommodating the water housing.

According to an exemplary embodiment, the water housing may be provided with a slot for supporting the first shaft and the second shaft, and the base housing may be provided with a groove for supporting the first shaft and the second shaft.

According to an exemplary embodiment, a water supply pipe for supplying the washing water and a drain pipe for discharging the washing water may be connected to the water housing.

The sanitary scaffolding apparatus of an embodiment of the present invention includes: a first scaffold including a plurality of ribs and support portions respectively connected to both sides of the ribs; A second footrest including a plurality of ribs and supporting portions respectively connected to both sides of the rib, and insertable into the inside of the first footrest; A first link member connected to the first footrest and having a plurality of links; A second link member connected to the second footrest and having a plurality of links; It includes a housing in which the washing water is accommodated, the first footrest and the second footrest are installed, and moves the first footrest up and down by the linear motion of the first link member, and The second footrest can be moved up and down by linear motion.

According to an exemplary embodiment, the support portion of the second footrest may be located inside the support portion of the first footrest, and the height of the support portion of the second footrest may be smaller than the height of the support portion of the first footrest.

The sanitary scaffolding device according to an embodiment of the present invention includes: a first scaffold including a plurality of ribs and a connecting portion to which one side of the ribs is connected; A second scaffold including a plurality of ribs and a connecting portion to which one side of the ribs is connected; A first cam shaft including a first cam supporting the rib of the first footrest; Including a second cam shaft including a second cam for supporting the rib of the second footrest; The first footrest may be moved up and down by the rotation of the first camshaft, and the second footrest may be moved up and down by the rotation of the second camshaft.

According to an exemplary embodiment, further comprising a base for accommodating the first footrest and the second footrest, the base is provided at the upper portion corresponding to the connection portion of the first footrest and the second footrest, the upper It may include openings corresponding to the ribs of the first footrest and the second footrest.

According to an exemplary embodiment, a guide shaft may be provided on the first and second footrests, and a guide groove through which the guide shaft is guided may be provided on the base.

According to an exemplary embodiment, a first camshaft gear unit and a second camshaft gear unit are provided on the first camshaft and the second camshaft, respectively, and a first rack gear unit is provided on the first camshaft gear unit and the second camshaft gear unit. The second and second rack gear units are connected to each other, and the first rack gear unit and the second rack gear unit include a toothed unit and a beach type unit, respectively, and the first camshaft gear unit is formed by linear motion of the first rack gear unit. It is selectively rotatable, and the second camshaft gear part is selectively rotatable by linear motion of the second rack gear part.

According to an exemplary embodiment, a first rack gear portion further comprising a first screw shaft, wherein the first camshaft gear portion is selectively engaged with the first screw shaft and screwed to the first screw shaft, and the second camshaft A gear portion is selectively engaged and a second rack gear portion screwed with the first screw shaft is provided, and a tooth portion of the first cam shaft gear portion of the first screw shaft and a tooth portion of the second cam shaft of the first screw shaft The positions are arranged in the opposite direction, and the first and second camshaft gear units may be selectively rotated by rotation of the first screw shaft.

According to an exemplary embodiment, the first rack further comprises a second screw shaft engaged with the first screw shaft, the first camshaft gear part selectively engaged with the second screw shaft, and screwed with the first screw shaft A gear portion, the second camshaft gear portion is selectively engaged and a second rack gear portion screwed to the first screw shaft is provided, and the toothed portion of the first camshaft gear portion of the second screw shaft, and the second screw shaft The position of the teeth of the second camshaft may be reversed.

According to an exemplary embodiment, the first camshaft gear part and the second camshaft gear part include a pinion part and a body connected to the pinion, the first rack gear part and the second rack gear part, the A rack portion selectively engaged with the pinion portion, and a guide connected to the rack portion and accommodating the body may be included.

According to an exemplary embodiment, the body may have a curved portion. According to an exemplary embodiment, the guide may have a horizontal portion and a vertical portion.

A sanitary scaffolding device according to an embodiment of the present invention includes a housing for receiving washing water; A first footrest disposed on the upper side of the housing and movable up and down; At least one of the first footrest and the second footrest may be positioned above at a predetermined time, including a second footrest disposed on the upper side of the housing and movable up and down independently of the first footrest.

Each of the features of the above-described embodiments may be implemented in combination in other embodiments unless contradictory or exclusive with other embodiments.

The present invention described above has the following effects.

According to an embodiment of the present invention, there is an advantage in that the footrest can be managed hygienically.

According to an embodiment of the present invention, there is an advantage that the footrest can be cleaned automatically.

According to an embodiment of the present invention, there is an advantage that the installation and maintenance of the footrest is convenient.

1 is a perspective view showing the installation of an embodiment of a sanitary footrest device according to the present invention.
2 is an exploded perspective view of the sanitary scaffolding device of FIG. 1.
3 is a combined perspective view of FIG. 2.
4 to 6 are perspective views illustrating an operating state of the driving part of FIG. 1 from various viewpoints.
7 is an exploded perspective view showing another embodiment of the sanitary footrest device according to the present invention.
8 is a combined perspective view of FIG. 7.
9 is an exploded perspective view showing another embodiment of the sanitary footrest device according to the present invention.
10 is a combined perspective view of FIG. 9.
11 is an exploded perspective view showing the driving device of FIG. 9.
12 is an exploded perspective view of the cam and footrest of FIG. 9.
13 is a combined cross-sectional view of FIG. 12.
14 to 16 are perspective views illustrating an operating state of the driving part of FIG. 11 from various viewpoints.
17 is a perspective view showing the mutual motion of the camshaft and the rack gear of FIG. 11;
18 is a perspective view showing an example of the installation method of FIG. 11.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

The embodiments described below are intended to aid understanding of the present invention, and thus the present invention is not limited to the embodiments described below. In addition, in the accompanying drawings, specific elements may be exaggerated or reduced in order to aid understanding of the invention, and are not limited to the form drawn in the drawings of the present invention.

Referring to Figure 1, an embodiment of the sanitary footrest device according to the present invention will be described.

The sanitary scaffolding device of the present invention can be used in many places, but for convenience of explanation, a sanitary scaffolding device installed in front of the urinal will be described as an example. In addition, the sanitary scaffolding device of the present invention may be buried in the floor or separately installed on the floor, but for convenience of explanation, the sanitary scaffolding device is described as being embedded in the floor.

In general, urinals 14 are installed in men's toilets. A pipe 12 supplying water to the urinal 14 is connected to the upper side of the urinal 14. A sensor 16 for detecting a user may be provided at a predetermined position of the urinal 14.

A footrest device 1 may be disposed in front of the urinal 14. In general, since urine splashes most in front of the urinal 14, the footrest device 1 may be provided in a predetermined position in front of the urinal 14.

The footrest device 1 may be embedded in the floor 2 of the toilet. The upper surface of the footrest device 1 may be the same height as the upper surface of the floor 2 so that there is no step between the upper surface of the footrest device 1 and the floor 2 of the toilet. In this way, since the upper surface of the footrest device 1 is flush with the toilet floor 2, the user's foot does not get caught in the footrest device 1 when the user approaches the urinal 14.

The scaffolding device 1 will be schematically described. (The detailed structure of the scaffolding device 1 will be described later)

The scaffolding device 1 may include a housing 10 and a scaffolding 5 provided in the housing 10. The housing 10 may have a predetermined space, and the upper portion may be open. Washing water may be accommodated inside the housing 10.

A water supply pipe 42 for supplying washing water to the housing 10 may be connected to the housing 10. The water supply pipe 42 may be connected to a pipe 12 supplying water to the urinal 14. A valve 42a may be provided in the water supply pipe 42.

A drain pipe 46 capable of discharging the washing water accommodated in the housing 10 to the outside may be connected to the housing 10. A valve 46a may be provided in the drain pipe.

On the other hand, water may be used as the washing water, and a disinfectant, a disinfectant, an antibacterial agent, etc. (hereinafter collectively referred to as'cleaning agent' for convenience) may be mixed with the water. The cleaning agent may be liquid or solid.

A detergent box 44 in which the detergent is accommodated may be provided at a predetermined position of the water supply pipe 42. The cleaning agent may be supplied to the housing 10 of the scaffolding device 1 by using water flowing through the water supply pipe 42. When the detergent is exhausted, the box 44 may be replenished with detergent. Alternatively, the detergent box 44 containing the detergent may be replaced.

On the other hand, the footrest 5 may be provided in the housing 10 of the footrest device 1. The footrest 5 may include a first footrest 52 and a second footrest 54.

The first footrest 52 and the second footrest 54 may alternately move up and down. At some point, at least one of the first footrest 52 and the second footrest 54 may be positioned above the housing 10, and the other may be positioned below the housing 10.

The footrest positioned on the upper side of the housing 10 may be flush with the floor 2 of the toilet. The footrest positioned under the housing 10 may be washed by being immersed in the washing water inside the housing 10.

By alternately moving the upper and lower positions of the used footstool and the washed footstool, the upper footstool, that is, the footstool that the user stepped on, can always be kept clean, and the lower footstool can be automatically cleaned by washing water. The structure will be described later.)

2 and 3, the structure of an embodiment of the scaffolding device 1 will be described.

The housing 10 may be provided as one, but may include a plurality of housings. This is because it may be preferable that the housing 10 be separated so that the washing water is not closed to various mechanical parts, electric and electronic parts, etc.

For example, the housing 10 may include a base housing 3 and a water housing 6.

The water housing 6 may be accommodated in the base housing 3. An electric room 7 may be provided on one side of the base housing 3. A footrest 5 may be disposed above the water housing 6.

Each component will be described in detail.

The water housing 6 will be described.

The water housing 6 may have a predetermined space and an upper portion may be opened. Washing water may be accommodated in the water housing 6, and a footrest 5 may be disposed on the upper side.

The footrest 5 may include a first footrest 52 and a second footrest 54 that can be moved up and down. A first shaft 92 and a second shaft 96 may be connected to both sides of the first footrest 52 and the second footrest 54, respectively.

In order to support the first shaft 92 and the second shaft 92, slots 64b and 64c corresponding thereto may be provided at predetermined positions of the water housing 6, respectively.

The lower ends of the slots 64b and 64c may be located at an upper side spaced a predetermined distance from the bottom surface of the water housing 6. When the first shaft 92 and the second shaft 96 are fitted to the slots 64b and 64c, respectively, the packing may be fitted to the remaining portions of the slots 64b and 64c so that washing water does not leak. Reference) Washing water can be accommodated up to a predetermined height of the water housing 6.

A first support member 65b and a second support member 65c may be provided at positions corresponding to the slots 64b and 64c. The first shaft 92 and the second shaft 92 may be supported on the first support member 65b and the second support member 65c.

The first support member 65b may have a height smaller than that of the second support member 65c. because, This is because the first footrest 52 and the second footrest 54 rotate in a counterclockwise direction. The second support member 65c may support the first foot plate 52 and the second foot plate 54 when the first foot plate 52 and the second foot plate 54 are in the upper position.

A plurality of through holes 644b and 644c may be provided at lower ends of the first support member 65b and the second support member 65c. Washing water may flow through the through holes 644b and 644c.

Meanwhile, the water supply pipe 42 and the drain pipe 46 may be connected to a predetermined position of the water housing 6, respectively. Clean washing water may flow into the water housing 6 through the water supply pipe 42, and contaminated washing water may be drained through the drain pipe 46.

The connection height between the water supply pipe 42 and the water housing 6 may be located approximately above the water housing 6. The connection position of the drain pipe 46 may be lower than the connection position of the water supply pipe 42.

The timing of supplying the washing water through the water supply pipe 42 can be appropriately determined. For example, washing water can be automatically supplied at predetermined time intervals. Alternatively, the washing water may be supplied after a predetermined time after the user is detected.

Discharge of the contaminated washing water through the drain pipe 46 can use various methods. For example, if the drain pipe 46 is connected above a water level that is a desired amount of washing water, the washing water may be drained through the drain pipe 46 when the level of the washing water is higher than this.

Alternatively, a valve 46a may be installed in the drain pipe 46 to determine a drain time point. When the valve 46a is installed, the drain pipe 46 may be connected to the lower portion of the water housing 6. For example, the urinal can be drained each time it is used, or it can be drained after a certain period of use.

The footrest 5 will be described.

As described above, the footrest 5 may include a first footrest 52 and a second footrest 54 that are movable up and down. The first footrest 52 and the second footrest 54 may move up and down between the upper and lower portions of the water housing 6.

When the first footrest 52 and the second footrest 54 are positioned above, the first footrest 52 and the second footrest 54 may be at the same height as the floor of the toilet. When the first footrest 52 and the second footrest 54 are positioned below, they can be washed by being immersed in the washing water of the water housing 6.

In front of the urinal, the user steps on the first footrest 52 and/or the second footrest 54. Accordingly, at any point in time, at least one of the first footrest 52 and the second footrest 54 may be positioned at the same height as the floor of the toilet.

For example, a state in which only the first footrest 52 is on the top, a state in which only the second footrest 54 is on the top, and a state in which the first footrest 52 and the second footrest 54 are at the top may be achieved. .(The positional relationship of the first footrest 52 and the second footrest 54 over time will be described later.)

The base housing 3 will be described.

The base housing 3 may have a predetermined space, and an upper portion may be opened. The water housing 6 may be accommodated in the base housing 3.

Various power transmission mechanisms (820, 830, etc.) for driving the footrest 5 may be disposed in the base housing 3. The power transmission mechanism may be disposed in the space between the base housing 3 and the water housing 6.

In order to support the first shaft 92 and the second shaft 96 of the footrest 5, grooves 34b and 34c corresponding thereto may be provided at predetermined positions of the base housing 3, respectively. The lower ends of the grooves 34b and 34c may be located at an upper side spaced a predetermined distance from the bottom surface of the water housing 6. The grooves 34b and 34c of the base housing 3 may be disposed at positions corresponding to the slots 64b and 64c of the water housing 6.

In addition, in order to support both ends of the fourth shaft 820, grooves 34a corresponding thereto may be provided at predetermined positions of the base housing 3 (the fourth shaft will be described later).

Next, the battlefield 7 will be described.

The battlefield 7 may be disposed next to the base housing 3. Various kinds of mechanical parts and electric parts may be accommodated in the electric equipment room 7. For example, an actuator, for example, a motor, a PCB board, and a sensor may be installed in the electrical room 7.

Referring to Fig. 4, an example of the operation structure of the footrest 5 will be described.

As described above, the footrest may include a first footrest 52 and a second footrest 54 that can be moved up and down.

The first footrest 52 will be described.

The first footrest 52 is a first link 522 and a pair of second links 524a and 524b rotatably connected to the first link 522 (for convenience, the '2-1 link (left second link) Link), may include a 2-2 link (referred to as a right second link).

The first link 522 is disposed horizontally, and two second links 524a and 524b may be rotatably connected to both ends of the first link 522, respectively. The second links 524a and 524b may be connected to the first link 522 by pins 526a and 526b so as to be rotatable.

The first link 522 and the second link 524a and 524b may be disposed in an axial direction to be separated by a predetermined distance. Accordingly, a plurality of first links 522 may occupy a predetermined area, and a combination of the plurality of first links 522 functions as a scaffold, and a person step on this part (see FIG. 2).

The second footrest 54 will be described.

The structure of the second footrest 54 may also be substantially the same as the first footrest 52.

That is, the second footrest 54 includes a first link 542 and a pair of second links 544a and 544b (for convenience, '2-1 link (left second link)), 2-2 link (right side 2 link)') may be included. The second links 544a and 544b with respect to the first link 542 may be connected by pins 546a and 546b so that they are rotatable.

The second footrest 54 is the first link 542 and the second link 544a, 544b in the axial direction with the first link 522 and the second link 524a, 524b of the first footrest 52 They can be installed alternately with each other.

A structure in which the first footrest 52 and the second footrest 54 move up and down will be described.

The structure of the upright movement of the first footrest 52 will be described.

First, a connection structure between the second links 524a and 524b of the first footrest 52 and the shafts 92 and 96 will be described.

The two second links 524a and 524b connected to both ends of the first footrest 52 are respectively on the first axis 92 ('left axis' for convenience) and the second axis 96 ('right axis' for convenience), respectively. Can be connected.

However, the left second link 524a may be dependent on the rotation of the left shaft 92, and the right second link 524b may not be dependent on the rotation of the right shaft 96.

That is, when the left shaft 92 rotates, the left second link 524a may rotate together with the left shaft 92. On the other hand, even when the right shaft 96 rotates, the right second link 524b may not rotate with only the outer stone with respect to the right shaft 96.

To this end, the left second link 524a may be forcibly fitted to the left shaft 92. The right second link 524b may be loosely fitted to the right shaft 96.

For example, the left shaft 92 may have a circular cross section 924 and a non-circular cross section 922 alternately. The right axis 96 may also have a circular cross section 964 and a non-circular cross section 962 alternately.

The left second link 524a may be forcibly fitted to the non-circular cross-section 922 of the left shaft 92, and the right second link 524b may be loosely fitted to the circular cross-section 964 of the right shaft 96. I can.

Next, the upward movement of the first footrest 52 will be described.

When the left shaft 92 rotates in a counterclockwise direction, the left second link 524a may rotate in a counterclockwise direction together with the left shaft 92. When the left second link 524a rotates counterclockwise, the first link 522 connected to the left second link 524a moves to the left.

The right second link 524b connected to the first link 522 is connected to the right shaft 96 so as to protrude. Accordingly, the rotation of the right second link 524b is irrelevant to the rotation of the right shaft 96 and is dependent on the rotation of the first link 522. Accordingly, when the first link 522 moves to the left, the left second link 524b also rotates in a counterclockwise direction.

In summary, in the first footrest 52, when the left shaft 92 rotates in a counterclockwise direction, the first link 522 may move from the top to the bottom. Conversely, when the left shaft 92 rotates in a clockwise direction, the first link 522 may move from the bottom to the top.

The structure of the upright movement of the second footrest 54 will be described.

The upright structure of the second footrest 54 is substantially the same as the upright structure of the first footrest 52. However, the first footrest 52 may be moved upside down by the rotation of the left shaft 92, but the second footboard 54 may be moved upside down by the rotation of the right shaft 96.

To this end, the right second link 544b of the second footrest 54 is dependent on the rotation of the right shaft 96, and the left second link 544a is not dependent on the rotation of the left shaft 92.

In the second footrest 54, when the right shaft 96 rotates, the right second link 544b may rotate together with the right shaft 96. Even when the left shaft 92 rotates, the left second link 544a may not rotate with only the outer stone with respect to the left shaft 92.

In the second footrest 54, the right second link 544b may be forcibly fitted to the right shaft 96, and the left second link 544a may be loosely fitted to the left shaft 92.

The right second link 544b may be forcibly fitted to the non-circular cross-section 962 of the left shaft 92, and the left second link 544a may be loosely fitted to the circular cross-section 924 of the left shaft 92. I can.

In summary, in the second footrest 54, when the right shaft 96 rotates clockwise, the first link 522 may move from the bottom to the top. Conversely, when the right shaft 96 rotates counterclockwise, the first link 522 can move from top to bottom.

Meanwhile, as described above, the first footrest 52 can move up and down in response to the rotation of the left shaft 92, and the second footrest 54 can move up and down in response to the rotation of the right shaft 96. .

The left shaft 92 and the right shaft 96 may rotate forward and backward by an actuator, for example, a motor. For example, motors are connected to the left shaft 92 and the right shaft 96, respectively, so that the left shaft 92 and the right shaft 96 may be rotated, respectively.

Meanwhile, the left shaft 92 and the right shaft 96 may be selectively rotated respectively by using a single motor. With this configuration, there is an advantage that the number of motors can be reduced.

A structure capable of selectively rotating the left shaft 92 and the right shaft 96 using one motor will be described.

First, the power transmission structure of the left shaft 92 will be described.

A first shaft gear unit 94 (hereinafter referred to as a “left shaft gear unit” for convenience) may be provided at one end and preferably both ends of the left shaft 92. A pinion gear may be used for the left shaft gear unit 94. The left shaft gear unit 94 may include a toothed portion 942 provided with teeth and a beach-shaped portion 944 without teeth.

A first shaft rack gear part 836a (hereinafter, referred to as a'left shaft rack gear part' for convenience) may be selectively engaged with the left shaft gear part 94. For example, the left shaft rack gear portion 836a may include a toothed portion 837a provided with teeth and a beach-shaped portion 838a not provided with teeth.

In a state in which the teeth 942 of the left shaft gear 94 are engaged with the teeth 837a of the left shaft rack gear portion 836a, the linear motion of the left shaft rack gear portion 836a is It can be converted into rotational motion.

In a state in which the teeth 942 of the left shaft gear 94 are not engaged with the teeth 837a of the left shaft rack gear part 836a, the linear motion of the left shaft rack gear part 836a is caused by the left shaft gear part 94 It is not converted to the rotational motion of the left shaft gear 94 does not rotate.

On the other hand, as shown in an enlarged view of the right-shaft gear part 95 and the right rack gear part 836b, a groove 982 may be provided in a circumferential direction in the non-removable part of the right-shaft gear part 95. In addition, a protrusion 984 into which the groove 982 is fitted may be provided at one side of the right rack gear portion 836b. In a state in which the right-shaft gear portion 95 and the right rack gear portion 836b are not engaged, the movement may be guided so as not to turn away by the interconnection of the groove 982 and the protrusion portion 984.

In addition, in order to clarify the engagement and non-fitting of the right-shaft gear portion 95 and the right rack gear portion 836b, the upper surface 838c of the beach-shaped portion 838a may be recessed downward.

Although the right shaft gear part 95 and the right rack gear part 836b have been described as an example, the same structure can be applied to the left shaft gear part 94 and the left rack gear part 836a.

A structure for linearly moving the left shaft rack gear portion 836a will be described.

A female thread may be provided inside the left shaft rack gear portion 836a. A third shaft 830 provided with a male screw 834a may be connected to the female screw part. That is, by the relative motion of the female screw and the male screw 834b, the rotational motion of the third shaft 830 may be converted into a linear motion of the left shaft rack gear portion 836a.

Accordingly, when the third shaft 830 rotates, the left shaft rack gear portion 836a linearly moves, and the left shaft gear portion 94 engaged with the left shaft rack gear portion 836a may rotate.

Meanwhile, support portions 839a, 839b, 839c, and 839d rotatably supporting the third shaft 830 may be provided at a predetermined position of the third shaft 830.

Next, the power transmission structure of the right shaft 96 will be described.

The power transmission structure of the right shaft 96 may also be substantially the same as the power transmission structure of the left shaft 92. However, the coupling method of the male screw 834a and the female screw of the left rack gear portion 836a and the coupling method of the male screw 834b and the female screw of the right rack gear portion 836b may be opposite to each other.

For example, the left-axis rack gear portion 836a may be a right-hand screw connection, and the right-axis rack gear portion 836b may be a left-hand screw connection. In this configuration, when the third shaft 830 rotates, the linear motion directions of the left-axis rack gear part 836a and the right-axis rack gear part 836b may be opposite to each other.

For example, when the third shaft 830 rotates in a counterclockwise direction, the left rack gear part 836a may linearly move to the right in the drawing, and the right rack gear part 836b moves linearly to the left in the drawing. can do. That is, the left-axis rack gear portion 836a and the right-axis rack gear portion 836b can approach each other (see solid arrow in FIG. 4).

Conversely, when the third shaft 830 rotates clockwise, the left rack gear portion 836a can move linearly to the left in the drawing, and the right rack gear portion 836b can move linearly to the right in the drawing. . That is, the left-axis rack gear portion 836a and the right-axis rack gear portion 836b may be separated from each other.

With reference to FIGS. 4 to 6, the positions and movements of the first footrest 52 and the second footrest 54 will be described.

With reference to FIG. 4, the first state will be described.

In the first state, the first footrest 52 is positioned at the top and the second footboard 54 is positioned at the bottom.

The first link 522 of the first footrest 52 is flush with the floor of the bathroom, and the second links 524a and 524b may be positioned substantially vertically. Accordingly, the user can step on the first link 522 of the first footrest 52.

The first link 542 and the second link 544a and 544b of the second footrest 54 may be positions lowered from the floor of the toilet. Therefore, if the first link 542 and the second link 544a and 544b of the second footrest 54 can be immersed in the washing water, they can be washed by the washing water.

Next, the connection relationship between the left shaft gear part 94 and the left shaft rack gear part 836a, and the connection relationship between the right shaft gear part 95 and the right shaft rack gear part 836b will be described.

In the first state, the left shaft gear portion 94 may be positioned on the non-removable portion 838a of the left shaft rack gear portion 836a. On the other hand, the teeth 954 of the right-shaft gear unit 96 may be located on the teeth 837b of the right-axis rack gear portion 836b.

Referring to Fig. 5, the second state will be described.

The second state is a state in which both the first footrest 52 and the second footrest 54 are located on the upper side. The first link 522 of the first footrest 52 and the first link 542 of the second footrest 54 may be flush with the floor of the toilet. In the second state, the user can step on the first footrest 52 and the second footrest 54.

Referring again to FIG. 4, the transition from the first state to the second state will be described.

In the first state, the first footrest 52 is positioned at the top and the second footboard 54 is positioned at the bottom. The second state is a state in which the first footrest 52 and the second footrest 54 are positioned above. Therefore, in order to switch from the first state to the second state, the first footrest 52 must maintain the upper position, and the second footrest 54 must move from the bottom to the top.

First, the movement of the second footrest 54 will be described.

In the first state of FIG. 4, the third shaft 830 rotates counterclockwise. Then, the left-axis rack gear part 836a may linearly move to the right, and the right-axis rack gear part 836b may linearly move to the left. That is, the left-axis rack gear portion 836a and the right-axis rack gear portion 836b can approach each other (refer to the solid arrow in FIG. 4).

In the first state, the teeth 954 of the right shaft 95 are positioned on the teeth 838b of the right rack gear portion 836b and are engaged with each other. For example, the toothed portion 954 of the right shaft 95 may be positioned at the tip of the toothed portion 838b of the right-axis rack gear portion 836b.

Accordingly, when the right-axis rack gear portion 836b moves to the left, the right-axis gear portion 95 rotates in a clockwise direction. When the right shaft 95 rotates clockwise, the right shaft 96 also rotates clockwise.

The right shaft 96 and the right second link 544b of the second footrest 54 are constrained to each other. Accordingly, when the right shaft 96 rotates clockwise, the right second link 544b of the second footrest 54 also rotates clockwise. When the right second link 544b rotates clockwise, the first link 542 also moves to the right.

When the first link 542 moves to the right, the left second link 544a connected to the first link 542 also rotates clockwise. At this time, the left shaft 92 and the left second link 544a are not mutually constrained. Accordingly, when the first link 542 moves to the right, the left second link 544a rotates clockwise while rotating with respect to the left shaft 92.

As a result, the first link 542 of the second footrest 54 moves upward, so that the first link 542 of the second footrest 54 becomes the same as the height of the floor of the toilet.

When the conversion from the first state to the second state is completed, the right-shaft gear part 95 is positioned on the non-removable part 838b of the right-axis rack gear part 836b so that they do not engage with each other (see FIG. 5).

Next, the movement of the first footrest 52 will be described.

The right second link 524b and the right shaft 96 of the first footrest 52 are not constrained to each other. Therefore, even if the right shaft 96 rotates in the clockwise direction, the right second link 524b of the first footrest 52 does not rotate clockwise only with respect to the right shaft 96 in the clockwise direction.

On the other hand, the left second link 524a and the left shaft 92 of the first footrest 52 are constrained to each other. Accordingly, when the left shaft 92 rotates, the left second link 524a of the first footrest 52 may also rotate.

However, in the first state, the left shaft gear portion 94 is positioned in the non-fitting portion 837a of the left shaft rack gear portion 836a and is not engaged with each other. Therefore, even if the left shaft rack gear part 836a moves to the right, the left shaft gear part 94 does not rotate. Since the left shaft gear unit 94 does not rotate, the left shaft 92 also does not rotate. Accordingly, the first footrest 52 can maintain its original height.

When the conversion from the first state to the second state is completed, the toothed portion 942 of the left shaft gear unit 94 is engaged with the toothed portion 837a of the left shaft rack gear portion 836a. 5)

In summary, when the third shaft 830 rotates counterclockwise in the first state of FIG. 4, the second state of FIG. 5 may be achieved. In the first state, the first footrest 52 is positioned at the top, and the second footrest 54 is positioned at the bottom. In the second state, both the first footrest 52 and the second footrest 54 are positioned above.

Referring to Fig. 6, the third state will be described.

In the third state, the first footrest 52 is positioned at the bottom, and the second footrest 54 is positioned at the top. In the third state, the user can step on the second footrest 54. The first link 542 of the second footrest 54 may be flush with the floor of the toilet.

Referring again to FIG. 5, the transition from the second state to the third state will be described.

In the second state, both the first footrest 52 and the second footrest 54 are located on the upper side. In the third state, the first footrest 52 is located at the bottom, and the second footrest 54 is located at the top. Accordingly, in order to change from the second state to the third state, the first footrest 52 must be moved from the bottom to the upper position, and the second footrest 54 must maintain the upper position.

First, the movement of the first footrest 52 will be described.

In the second state of FIG. 5, the third shaft 830 continues to rotate in a counterclockwise direction. Then, the left-axis rack gear part 836a may linearly move to the right, and the right-axis rack gear part 836b may linearly move to the left. That is, the left-axis rack gear portion 836a and the right-axis rack gear portion 836b may further approach each other.

In the second state, it is a point in time when the toothed portion 942 of the left shaft gear portion 94 starts to engage with the toothed portion 837a of the left shaft rack gear portion 836a. Accordingly, when the left shaft rack gear portion 836a moves to the right, the left shaft gear portion 94 rotates in a counterclockwise direction. When the left shaft gear unit 94 rotates counterclockwise, the left shaft 92 also rotates counterclockwise.

The left shaft 92 and the left second link 524a of the first footrest 52 are constrained to each other. Accordingly, when the left shaft 92 rotates counterclockwise, the left second link 524a of the first footrest 52 also rotates counterclockwise.

When the left second link 524a rotates counterclockwise, the first link 522 also moves to the left. When the first link 522 moves to the left, the right second link 524b connected to the first link 522 also rotates counterclockwise. At this time, since the right second link 524b is not mutually constrained with the right shaft 96, the right second link 524b rotates counterclockwise while rotating with respect to the right shaft 96.

As a result, the first link 522 of the first footrest 52 moves downward, and the first link 522 of the first footrest 52 becomes lower than the height of the floor of the toilet.

When the conversion from the second state to the third state is completed, the toothed portion 942 of the left shaft gear unit 94 is in a state in which the toothed portion 942 of the left shaft gear unit 94 is separated from the toothed portion 837a of the left shaft rack gear portion 836a.

Next, the movement of the second footrest 54 will be described.

The left first link 542 of the second footrest 54 is not constrained to each other with the left shaft 92. Therefore, even if the left shaft 92 rotates counterclockwise, the left second link 544a of the second footrest 54 does not rotate counterclockwise with respect to the left shaft 92 as well as the outer stone.

Meanwhile, the right second link 544b of the second footrest 54 is constrained to each other with the right shaft 96. Accordingly, when the right shaft 96 rotates, the right second link 544b of the second footrest 54 may also rotate.

However, in the second state, since the right-shaft gear part 95 is located in the non-removable part 838b of the right-axis rack gear part 836b, even if the right-axis rack gear part 836b moves to the left, the right-axis gear part 95 ) Does not rotate.

Accordingly, the linear motion to the left of the right-axis rack gear portion 836b is not converted into a rotational motion of the right-axis gear portion 95, and the right-shaft 96 does not rotate. Thus, the second footrest 54 can maintain its original height.

When the conversion from the second state to the third state is completed, the toothed portion of the right shaft 96 gear portion is separated from the toothed portion of the right-axis rack gear portion 836b (see Fig. 6).

In summary, if the third shaft 830 continues to rotate forward in the second state of FIG. 5, the third state of FIG. 6 may be achieved. In the second state, both the first footrest 52 and the second footrest 54 are positioned above. In the third state, the first footrest 52 is positioned at the bottom, and the second footrest 54 is positioned at the top.

On the other hand, when the third shaft 830 rotates in a clockwise direction, it may be converted from the third state to the second state. When the clockwise rotation of the third shaft 830 continues, the second state may be changed to the first state. Since it is the opposite of that described above, a detailed description is omitted.

With reference to FIGS. 4 to 6, an example of the vertical movement method of the first footrest 52 and the second footrest 54 will be described.

The user steps on the first footrest 52 and/or the second footrest 54 when using the urinal. Therefore, at some point, at least one of the first footrest 52 and the second footrest 54 must be located on the upper side. An appropriate combination of the first state, the second state and the third state is used, and at some point, at least one of the first footrest 52 and the second footrest 54 may be positioned on the upper side.

For example, it is as follows.

The standby state may be either a first state or a third state. That is, one of the first footrest 52 and the second footrest 54 is positioned at the top and the other is positioned at the bottom, so that it can be submerged in the washing water.

Hereinafter, for convenience, the first state will be described as a standby state.

In the first state, the first footrest 52 may be positioned at the top and the second footboard 54 may be positioned at the bottom. Accordingly, the user can step on the first footrest 52, and the second footrest 54 can be immersed in washing water and washed.

In the first state, the user can step on the first footrest 52 and use the urinal. When the user uses the urinal, urine may spatter and bury the first foot plate 52.

Therefore, the contaminated first scaffold 52 and the clean second scaffold 54 are alternated. That is, when the user uses the urinal, it changes from the first state to the third state.

Then, the contaminated first scaffold 52 descends downward, and the clean second scaffold 54 rises upward. The contaminated first footrest 52 is immersed in the washing water and washed, and the user can step on the clean second footrest 54. Accordingly, the user can always step on the clean first footrest 52 or the second footrest 54.

On the other hand, if the user immediately converts from the first state to the third state, it may be dangerous if the user stands on the scaffold between the transitions. Accordingly, in the process of converting between the first state and the third state, the second state can be first performed.

That is, the first state is first converted to the second state. Then, with the first footrest 52 positioned at the top, the second footrest 54 rises upward, so that both the first footrest 52 and the second footrest 54 are positioned above. Next, it switches from the second state to the third state. That is, when the second footrest 54 is located on the upper side, the first footrest 52 is lowered.

In summary, as the user uses the urinal, the footrest may repeat'first state -> second state -> third state -> second state -> first state'. The'first state -> second state -> third state' or the'third state -> second state -> first state' becomes one cycle.

Meanwhile, the operation time of one cycle may be performed at predetermined time intervals. Alternatively, a sensor that detects a user using a urinal can be used.

For example, when a sensor detects a user, a first state -> a second state -> a third state may be performed. As the sensor, an optical sensor, a proximity sensor, a PIR sensor, a pressure sensor, and the like may be used.

Meanwhile, in order to selectively rotate the third shaft 830 in a clockwise or counterclockwise direction, an actuator, for example, a motor may be connected to the third shaft 830. In addition, an appropriate speed reducer may be provided between the motor and the third shaft 830.

Meanwhile, as shown in FIG. 4, the third shaft 830 may be provided as a pair. In this case, the third axis 830 may be provided with two axes (for convenience, referred to as “axis 3-1 and axis 3-2”) facing each other. Motors may be connected to the 3-1 axis 830 and the 3-2 axis 830a, respectively. Alternatively, two 3-1 axis 830 and 3-2 axis 830a may be driven together using one motor.

Referring to FIG. 4, a method of using one motor will be described.

Gears 832 and 832a (referred to as'third axis gear' for convenience) may be provided at one end of the 3-1 axis 830 and the 3-2 axis 830a, respectively. Gears 824 and 824a (referred to as'fourth shaft gear' for convenience) may be engaged with the two third shaft gears 832 and 832a, respectively. Two fourth shaft gears 824 and 824a may be provided on the fourth shaft 820.

The fourth shaft gears 824 and 824a may be worm wheels, and the third shaft gears 832 and 832a may be worm gears. Accordingly, the rotation direction of the fourth shaft 820 and the rotation direction of the third shaft 830 may be perpendicular.

Meanwhile, an actuator, for example, a motor may be connected to the fourth shaft 820, and the motor may rotate the fourth shaft 820.

Alternatively, the fourth shaft drive gear 822 may be provided at a predetermined position of the fourth shaft 820, and the main drive gear 812 may be engaged with the fourth shaft drive gear 822. The fourth shaft drive gear 822 may be a worm wheel, and the main drive gear 812 may be a worm gear. An actuator, for example, a motor 8 may be connected to the rotation shaft of the worm gear. Accordingly, the rotation direction of the fourth shaft 820 and the rotation direction of the motor 8 may be at right angles.

With reference to Figures 7 and 8, another embodiment of the sanitary footrest apparatus of the present invention will be described.

This embodiment is also similar in basic operation principle to the above-described embodiment. However, in this embodiment, the structures of the first footrest and the second footrest and the vertical movement mechanism are different from those of the above-described embodiment.

First, referring to FIG. 7, the structure of the scaffolding of this embodiment will be described.

Similar to the above-described embodiment, the footrest may include a first footrest 520 and a second footrest 540 that can be moved up and down.

The shapes of the first footrest 520 and the second footrest 540 are substantially the same, but the size of the first footrest 520 may be larger than the size of the second footrest 540. Accordingly, the second footrest 540 may be accommodated in the first footrest 520.

The first footrest 520 may include a plurality of ribs 522 disposed at predetermined intervals. Accordingly, an opening 522a may be formed between the plurality of ribs 522. A pair of support portions 524 may be provided on both sides of the plurality of ribs 522. The first footrest 520 may have a grill shape as a whole.

The second footrest 540 may also include a pair of support portions 544 and a plurality of ribs 542. Accordingly, an opening 542a may be formed between the plurality of ribs 542.

The height of the support portion 544 of the second footrest 540 may be smaller than the height of the support portion 524 of the first footrest 520. The height of the rib 542 of the second footrest 540 may be the same as the height of the rib 522 of the first footrest 520.

In addition, the ribs 542 of the second footrest 540 may be positioned to alternate with the ribs 522 of the first footrest 520. Accordingly, the first footrest 520 and the second footrest 540 may be sandwiched and overlapped with each other.

With reference to FIG. 8, the structure of the upright movement of the scaffolds 520 and 540 will be described.

The first link member 526 may be coupled to the support part 524 of the first footrest 520. It is preferable that the first link member 526 is provided on the bottom surface of the connection part 524 of the first footrest 520.

The first link member 526 may be a multiple link. The first link member 526 may include a plurality of links 526a, and the plurality of links 526a may be rotatably connected to each other. The connection points 526b of the plurality of links 526a may be rotatably connected to the lower portion of the connection part 524.

When one end of the first link member 526 is pushed or pulled in the horizontal direction, the first foot plate 520 coupled to the first link member 526 may move up and down. That is, by the link structure of the first link member 526, the horizontal movement of the first link member 526 may be converted into the vertical movement of the first footrest 520.

Meanwhile, an actuator capable of horizontally moving (linear motion) the first link member 526 may be connected to one end of the first link member 526.

For example, using the cylinder 92 structure, one end of the piston 94 may be connected to one end of the first link member 526. It is also possible to use a linear actuator instead of a cylinder structure. In addition, it is also possible to use a structure that uses a motor and converts the rotational motion of the motor into linear motion, for example, a rack/pinion structure.

The second footrest 540 may also be moved up and down using the second link member 546.

The second link member 546 may be a multiple link. In the second link member 546, a plurality of links 546a may be rotatably connected to each other through a rotation point 546b. One end of the piston 94a connected to the cylinder 92a may be connected to one end of the second link member 546. Since the movement of the second footrest 540 is substantially the same as that of the first footrest 520, a description thereof will be omitted.

Also in this embodiment, a first state, a second state, and a third state may be included. That is, the first state is a state in which the first footrest 520 is positioned at the top and the second footrest 540 is positioned at the bottom. The second state is a state in which both the first footrest 520 and the second footrest 540 are positioned above. In the third state, the first footrest 520 is positioned at the lower side and the second footrest 540 is positioned at the upper portion.

In this embodiment as well, as the user uses the urinal, the footrest may repeat'first state -> second state -> third state -> second state -> first state'. The'first state -> second state -> third state' or the'third state -> second state -> first state' becomes one cycle. Since it is substantially the same as the above-described embodiment, a detailed description thereof will be omitted.

With reference to Figures 9 and 10, another embodiment of the sanitary footrest apparatus of the present invention will be described.

This embodiment is also similar in basic operation principle to the above-described embodiment. However, in this embodiment, the structures of the first footrest and the second footrest and the vertical movement mechanism are different from those of the above-described embodiment.

First, the structure of the scaffolding of this embodiment will be described.

The scaffold may include a first scaffold 5200 and a second scaffold 5400 that can be moved up and down. The first footrest 5200 and the second footrest 5400 may be installed using the base 5600.

The first footrest 5200 may include a plurality of ribs 5220 disposed at predetermined intervals. Since the plurality of ribs 5220 are disposed at predetermined intervals, an opening 5220a may be formed between the ribs. The plurality of ribs 5220 may be connected to the connection part 5240. The plurality of ribs 5220 may be connected to the connection part 5240 at a right angle.

Guide shafts 5230 may be provided on both sides of the connection part 5240, respectively. The guide shaft 5230 may be fitted into the guide groove 5616a of the base 5600. Accordingly, the vertical movement of the first footrest 5200 may be guided by the guide shaft 5230 and the guide groove 5616a.

The second footrest 5400 may also include a connecting portion 5440 and a plurality of ribs 5420. An opening 5420a may be formed between the plurality of ribs 5420. Guide shafts 5430 may be provided on both sides of the connection part 5440, respectively. The guide shaft 5430 may be fitted into the guide groove 5616b of the base 5600.

As described above, the shapes of the first footrest 5200 and the second footrest 5400 may be substantially the same. However, the positions of the connecting portion 5240 of the first footrest 5200 and the connecting portion 5440 of the second footrest 5400 may be opposite to each other. The connection part 5240 of the first footrest 5200 may be located on the left side, and the connection part 5440 of the second footrest 5400 may be located on the right side.

In addition, the rib 5220 of the first footrest 5200 may be located in the opening 5420a of the second footrest 5400. The rib 5420 of the second footrest 5400 may be located in the opening 5220a of the first footrest 5200. Accordingly, the first footrest 5200 and the second footrest 5400 may be sandwiched and overlapped with each other.

Next, the base 5600 will be described.

The base 5600 may have a shape substantially corresponding to the first footrest 5200 and the second footrest 5400. For example, the base 5600 may have a substantially rectangular shape. The base 5600 may include a pair of first frames 5610a and 5610b, and a pair of second frames 5630a and 5630b connecting the first frames 5610a and 5610b.

At least one support 5640 may be connected between the pair of second frames 5630a and 5630b. When the first footrest 5200 and the second footrest 5400 are positioned below, the first footrest 5200 and the second footrest 5400 may be supported by the support 5640.

Guide grooves 5616a and 5616b may be provided on side surfaces of the first frames 5610a and 5610b, respectively. The guide grooves 5616a and 5616b may be configured to be long vertically. Guide shafts 5230 and 5430 of the first footrest 5200 and the second footrest 5400 may be fitted into the guide grooves 5616a and 5616b, respectively.

Meanwhile, the upper portions 5612a and 5612b of the first frames 5610a and 5610b may extend inward. In addition, a plurality of openings 5614a and 5614b may be provided in the upper portions 5612a and 5612b of the first frames 5610a and 5610b at predetermined intervals.

The opening 5614a of the first frame 5610a on the left and the opening 5614b of the first frame 5610b on the right may be disposed to be staggered.

Accordingly, when the first footrest 5200 is in the upper position, the rib 5220 of the first footrest 5200 may be fitted into the opening 5614b of the first frame 5610b on the right side. When the second footrest 5400 is in the upper position, the rib 5420 of the second footrest 5400 may be fitted into the opening 5614a of the left first frame 5610a.

Referring to FIG. 10, a structure for preventing the first footrest 5200 and the second footrest 5400 from moving when the first footrest 5200 and the second footrest 5400 are in the upper position will be described. For convenience of explanation, the first footrest 5200 will be described as an example.

As shown in FIG. 10, the connecting portion 5240 of the first footrest 5200 and the rib 5220 may have a predetermined step. For example, the rib 5220 may be connected to the upper side of the connection part 5240.

The upper surface of the connection part 5240 of the first footrest 5200 may have a predetermined curvature. The bottom surface of the upper portion 5612a of the left first frame 5610a may have a curvature corresponding thereto.

When the first footrest 5200 is located on the upper side, the upper surface of the connection portion 5240 of the first footrest 5200 may be in close contact with the bottom surface of the upper portion 5612a of the left first frame 5610a. Also, the tip 5224 of the rib 5220 of the first footrest 5200 may be fitted into the opening 5614b of the first frame 5610b on the right side. Accordingly, the first footrest 5200 may be positioned on the base 5600 without a gap.

Accordingly, when the first footrest 5200 is in the upper position, it is possible to effectively prevent the first footrest 5200 from moving in the vertical and horizontal directions.

Referring to FIG. 11, a structure in which the first footrest 5200 and the second footrest 5400 move up and down will be described.

First, the structure of the upright movement of the first footrest 5200 will be described.

The first footrest 5200 may be supported by the first camshaft 9600. A plurality of first camshafts 9600 and 9600a may be provided at predetermined intervals. In FIG. 11, for example, four first camshafts 9600 and 9600a are shown.

The first cam shaft 9600 may be provided with a plurality of first cams 9610 spaced apart by a predetermined distance in the axial direction. The first cam 9610 may have a shape having a short side 9610a and a long side 9610b. The first cam shaft 9600 may be eccentrically connected to the first cam 9610. For example, the first cam 9610 may have an approximately elliptical shape, and the first cam shaft 9600 may be connected to a lower portion of the first cam 9610.

Meanwhile, the first camshaft 9600 may rotate approximately 90 degrees. For example, in a position in which the short side portion 9610a of the first cam 9610 is at the top, when the first cam shaft 9600 rotates 90 degrees, the long side portion 9610b of the first cam 9610 is located at the top. Is done.

With reference to FIGS. 12 and 13, the upward movement of the first footrest 5200 according to the rotation of the first camshaft 9600 will be described.

The rib 5220 of the first footrest 5200 may be supported by the first cam 9610 of the first camshaft 9600. As the first cam shaft 9600 rotates, the rib 5220 of the first footrest 5200 may move up and down while sliding on the side of the first cam 9610.

It is preferable that the rib 5220 of the first footrest 5200 does not deviate from the first cam 9610 of the first camshaft 9600.

To this end, a protrusion 5222 may be provided on the bottom surface of the rib 5220 of the first footrest 5200. A concave portion 9212 corresponding to the protrusion 9222 may be provided in the first cam 9610 of the first camshaft 9600. The concave portion 9612 of the first cam 9610 may be provided in one of the two long side portions 9610b and one of the two short side portions 9610a.

As shown in Fig. 13(a), when the rib 5220 of the first footrest 5200 is supported by the short side 9610a of the first cam 9610, the first footrest 5200 becomes the upper position. I can.

13(b), when the rib 5220 of the first footrest 5200 is supported by the long side 9610b of the first cam 9610, the first footrest 5200 will be in a lower position. I can.

Referring again to FIG. 11, the structure of the second scaffold 5400 up and down will be described.

Since the upright structure of the second footrest 5400 is substantially the same as the upright structure of the first footrest 5200, a brief description will be given.

The second footrest 5400 may be supported by the second camshaft 9200. A plurality of second camshafts 9200 and 9200a may be provided. The second cam shaft 9200 may be provided with a plurality of second cams 9210 spaced apart by a predetermined distance in the axial direction. The second cam 9210 may also have a shape having a long side and a short side, and the second cam shaft 9200 may be eccentrically connected.

The rib 5420 of the second footrest 5400 may be supported on the second cam 9210. When the rib 5420 of the second footrest 5400 is supported on the short side of the second cam 9210, the second footrest 5400 may be in an upper position. When the rib 5420 of the second footrest 5400 is supported on the long side of the second cam 9210, the second footrest 5400 may be in a lower position.

The first camshaft 9600 and the second camshaft 9200 may rotate forward and backward by an actuator, for example, a motor. For example, a motor may be connected to each of the first camshaft 9600 and the second camshaft 9200 to independently rotate the first camshaft 9600 and the second camshaft 9200. In this case, an appropriate deceleration means may be used between the motor and the first camshaft 9600 and the second camshaft 9200.

On the other hand, the first camshaft 9600 and the second camshaft 9200 may be selectively rotated respectively by using one motor, the first camshaft 9600 and the second camshaft 9200. With this configuration, there is an advantage that the number of motors can be reduced.

A structure capable of selectively rotating the first camshaft 9600 and the second camshaft 9200, respectively, using one motor will be described.

The power transmission structure to the first camshaft 9600 and the power transmission structure to the second camshaft 9200 are substantially the same.

For convenience of explanation, the power transmission structure to the second camshaft 9200 will be described.

A second camshaft gear part 9400 may be provided at one end of the second camshaft 9200. A pinion gear may be used for the second camshaft gear unit 9400. The second camshaft gear portion 9400 may include a toothed portion 9420a and a beach-shaped portion 9420b without teeth.

The second rack gear portion 8360 may be selectively engaged with the second camshaft gear portion 9400. For example, the second rack gear portion 8360 may include a toothed portion 8362a and a beach-shaped portion 8362b without teeth.

When the teeth 9420a of the second camshaft gear part 9400 and the teeth 8362a of the second rack gear part 8360 are engaged, the linear motion of the second rack gear part 8360 is 2 It can be converted into a rotational motion of the camshaft gear unit 9400.

In a state in which the teeth 9420a of the second camshaft gear portion 9400 are not engaged with the teeth 8362a of the second rack gear portion 8360, the linear motion of the second rack gear portion 8360 is Since the second camshaft gear part 9400 is not converted into a rotational motion of the second camshaft gear part 9400, the second camshaft gear part 9400 may not rotate.

Next, the power transmission structure to the first camshaft 9600 will be described.

The power transmission structure to the first camshaft 9600 may also be substantially the same as the power transmission structure to the second camshaft 9200.

That is, the first camshaft gear unit 9500 may be provided at one end of the first camshaft 9600. A pinion gear may be used as the first camshaft gear unit 9500. The first camshaft gear unit 9500 may include a toothed portion and a beach-shaped portion without teeth. The first rack gear portion 8460 may be selectively engaged with the first camshaft gear portion 9500. The second rack gear portion 8460 may include a toothed portion and a beach-shaped portion without teeth.

A preferred example of the structure of the camshaft gear unit and the rack gear unit will be described.

For convenience of explanation, the second camshaft gear unit 9400 and the second rack gear unit 8360 will be described as examples.

The second camshaft gear part 9400 may include a pinion part 9420. A body 9452 may be provided on the side (axial direction) of the pinion portion 9420. The pinion part 9420 may be eccentrically connected to one side of the body 9452. The pinion part 9420 may be engaged with the first rack gear part 8360, and the body 9452 may be connected to the second camshaft 9200.

The pinion portion 9420 may include a toothed portion 9420a and a beach-shaped portion 9420b. The body 9452 may have an approximately hexahedral shape. The body 9452 may include a curved portion 9452a, a first straight portion 9452b, and a second straight portion 9452c.

The second rack gear portion 8360 may include a rack portion 8362. A guide 8362 may be provided on the side (axial direction) of the rack portion 8362.

The rack portion 8362 may include a toothed portion 8362a and a beach-shaped portion 8362b. The rack portion 8362 may be provided with a toothed portion 8362a on the bottom surface. The rack portion 8362 may be engaged with the first camshaft gear portion 9400. The guide 8362 allows the body 9452 of the second camshaft gear unit 9400 to slide.

The guide 8362 may include a horizontal portion 8362a provided on the upper side. The guide 8362 may include a vertical portion 8362b provided on the rear side (a position opposite to the toothed portion 8362a). Therefore, the guide 8364 may have an approximately'A' shape.

The length of the horizontal portion 8362a of the guide 8362 may be smaller than the length of the rack portion 8362. Accordingly, a first space 8366 may be formed in front of the guide 8362 (above the side of the toothed portion 8362a). In addition, a second space 8368 may be formed between the horizontal portion 8362a and the vertical portion 8362b of the guide 8362.

The assembled state of the second camshaft gear portion 9400 and the second rack gear portion 8360 will be described.

In the assembled coupled state, the pinion portion 9420 of the second camshaft gear portion 9400 and the rack portion 8362 of the second rack gear portion 8360 may correspond to each other. In addition, the body 9452 of the second camshaft gear unit 9400 may correspond to the guide 8362 of the second rack gear unit 8360.

That is, the rack portion 8362 of the second rack gear portion 8360 may be positioned above the pinion portion 9420 of the second camshaft gear portion 9400. In addition, a guide 8362 of the second rack gear portion 8360 may be positioned above the body 9452 of the second camshaft gear portion 9400.

On the other hand, when the second rack gear part 8360 moves horizontally, the second camshaft gear part 9400 may rotate or stop.

That is, when the second rack gear portion 8360 horizontally moves in a state in which the teeth of the second rack gear portion 8360 and the teeth of the second camshaft gear portion 9400 are engaged, the second camshaft gear portion 9400 Can rotate. On the other hand, when the second rack gear part 8360 moves horizontally in a state where the teeth of the second rack gear part 8360 and the teeth of the second camshaft gear part 9400 are not engaged, the second camshaft gear part ( 9400) does not rotate.

Accordingly, the rack portion 8362 of the second rack gear portion 8360 is selectively engaged with the pinion portion 9420 of the second camshaft gear portion 9400. In addition, the guide 8362 of the second rack gear portion 8360 selectively slides with the body 9462 of the second camshaft gear portion 9400.

Meanwhile, the pinion portion 9420 of the second camshaft gear portion 9400 and the rack portion 8362 of the second rack gear portion 8360 may be engaged at a position corresponding to the first space 8366. Accordingly, in this position, when the second rack gear portion 8360 moves linearly, the second camshaft gear portion 9400 can rotate.

When the engagement of the pinion portion 9420 of the second camshaft gear portion 9400 and the rack portion 8362 of the second rack gear portion 8360 is released, the pinion portion 9420 of the second camshaft gear portion 9400 is removed. It may be located in the second space 8368 of the 2 rack gear part 8360.

Accordingly, in this position, even if the second rack gear portion 8360 moves linearly, the second camshaft gear portion 9400 does not rotate. Instead, the guide 8362 of the second rack gear portion 8360 may linearly move while sliding the body 9452 of the second camshaft gear portion 9400 that does not rotate. (See FIG. 17, detailed operation) Will be described later)

Next, a structure for linearly moving the rack gear unit will be described. For convenience of explanation, a structure for linearly moving the second rack gear portion 8360 will be described.

A female screw may be provided inside the second rack gear part 8360. A first screw shaft 8300 provided with a male screw 8430 may be screwed to the female screw of the second rack gear part 8360. That is, the rotational motion of the first screw shaft 8300 may be converted into a linear motion of the second rack gear portion 8360 by the relative motion of the female screw and the male screw 8430.

Therefore, when the first screw shaft 8300 rotates, the second rack gear part 8360 can move linearly, and the second camshaft gear part 9400 engaged with the second rack gear part 8360 can rotate. I can.

Meanwhile, as described above, a plurality of first cam shafts 9600 and 9600a and second cam shafts 9200 and 9200a may be provided.

In response to this, a plurality of first rack gear units 8460 and 8460a selectively engaged with the first camshaft gear units 9500 and 9500a of the first camshaft 9600 and 9600a may be provided. A plurality of second rack gear units 8360 and 8360a selectively engaged with the second camshaft gear units 9400 and 9400a of the second camshaft 9200 and 9200a may also be provided.

Meanwhile, a plurality of screw shafts for linearly moving the rack gear unit may be provided. For example, it may include a first screw shaft 8300 and a second screw shaft 8500. The first screw shaft 8300 and the second screw shaft 8500 may be arranged in parallel.

By connecting a motor to each of the first screw shaft 8300 and the second screw shaft 8500, the first screw shaft 8300 and the second screw shaft 8500 may be rotated, respectively. Alternatively, the first screw shaft 8300 and the second screw shaft 8500 may be rotated together using one motor.

To this end, a first screw shaft gear 8320 may be provided on the first screw shaft 8300. A second screw shaft gear 8520 may be provided on the second screw shaft 8500, and the second screw shaft gear 8520 may be engaged with the first screw shaft gear 8320. Accordingly, when one of the first screw shaft 8300 and the second screw shaft 8500 rotates, the other screw shaft may rotate.

Various methods can be used to rotate one of the first screw shaft 8300 and the second screw shaft 8500. For example, a motor may be connected to one of the first screw shaft 8300 and the second screw shaft 8500. In this case, an appropriate speed reducer may be used between the motor and one of the first screw shaft 8300 and the second screw shaft 8500.

Alternatively, by connecting a worm gear to one of the first screw shaft gear 8320 of the first screw shaft 8320 and the second screw shaft gear 8520 of the second screw shaft 8500, the worm gear It can also be connected to.

Next, the relationship between the screw shaft and the rack gear portion provided on the screw shaft will be described.

A first rack gear part may be provided on the first screw shaft 8300, and a second rack gear part may be provided on the second screw shaft 8500.

Alternatively, the first rack gear unit and the second rack gear unit may be mixed and provided on the first screw shaft 8300, and the first rack gear unit and the second rack gear unit may be mixed and provided on the second screw shaft 8500. have.

With this configuration, it is possible to reduce the moving distance of the first and second rack gear units. Accordingly, it is possible to closely install the ribs 5220 and 5420 of the first footrest 5200 and the second footrest 5400. Accordingly, it is possible to efficiently prevent the ribs 5220 and 5420 of the first footrest 5200 and the second footrest 5400 from being bent. When the first rack gear portion and the second rack gear portion are mixed and provided in the first screw shaft 8300, only the first screw shaft 8300 or the second screw shaft 8500 may be used.

In this embodiment, the first rack gear unit and the second rack gear unit are mixed and provided on the first screw shaft 8300, and the first rack gear unit and the second rack gear unit are mixed and provided on the second screw shaft 8500. This will be explained by way of example.

In the first screw shaft 8300, a first rack gear portion and a second rack gear portion may be mixed and disposed symmetrically. Also in the second screw shaft 8500, the first rack gear unit and the second rack gear unit may be mixed and disposed symmetrically.

Two second rack gear portions 8360 ('2-L rack gear portion' for convenience) may be provided on the left side of the first screw shaft 8300, and two first rack gear portions 8260a on the right side (For convenience, the '1-R rack gear unit') may be provided.

Two first rack gear parts 8460 ('1-L rack gear part' for convenience) may be provided on the left side of the second screw shaft 8500, and two second rack gear parts 8360a on the right side (For convenience, the '2-R rack gear unit') may be provided.

However, the 2-L rack gear portion 8360a and the 1-R rack gear portion 8260a provided on the first screw shaft 8300 may be disposed 180 degrees opposite to each other. The 1-L rack gear portion 8460 and the 2-R rack gear portion 8360a provided on the second screw shaft 8500 may be disposed 180 degrees opposite to each other.

For example, the toothed portion of the 2-L rack gear portion 8360 of the first screw shaft 8300 may be located on the left side of the drawing, and the 1-R rack gear portion of the first screw shaft 8300 ( The teeth of 8460a) may be located on the right side in the drawing. Similarly, the toothed portion of the 1-L rack gear portion 8460 of the second screw shaft 8500 may be located on the left side of the drawing, and the 2-R rack gear portion 8360a of the second screw shaft 8500 ) May be located on the right side of the drawing.

Meanwhile, the first rack gear unit must be connected to the first camshaft gear unit.

The 1-L rack gear portion 8460 may be connected to the left first camshaft gear portion 9500 (for convenience, the '1-L camshaft gear portion'). The 1-R rack gear portion 8460a may be connected to the first camshaft gear portion 9500a on the right ('1-R camshaft gear portion' for convenience).

By the way, the 1-L rack gear portion 8460 is provided on the second screw shaft 8500, and the 1-R rack gear portion 8460a is provided on the first screw shaft 8300. Accordingly, the length of the 1-L camshaft 9600 connected to the 1-L rack gear portion 8460 is the length of the 1-R camshaft 9600a connected to the 1-R rack gear portion 8460a Can be longer than This is because the second screw shaft 8500 to which the 1-L cam shaft 9600 is connected is located outside the first screw shaft 8300 to which the 1-R cam shaft 9600a is connected.

The second rack gear unit must be connected to the second camshaft gear unit.

The 2-L rack gear portion 8360 may be connected to the second camshaft gear portion 9400 on the left ('2-L camshaft gear portion' for convenience). The 2-R rack gear portion 8360a may be connected to the second camshaft gear portion 9400a on the right ('2-R camshaft gear portion' for convenience).

However, the 2-L rack gear portion 8360 is provided on the first screw shaft 8300, and the 2-R rack gear portion 8360a is provided on the second screw shaft 8500. Accordingly, the length of the 2-L camshaft 9200 connected to the 2-L rack gear part 8360 is the length of the 2-R camshaft 9200a connected to the 2-R rack gear part 8360a Can be shorter. This is because the first screw shaft 8300 to which the 2-L cam shaft 9200 is connected is located inside the second screw shaft 8500 to which the 2-R cam shaft 9200a is connected.

The positions and movements of the first footrest 5200 and the second footrest 5400 will be described with reference to FIGS. 14 to 16.

The first screw shaft 8300 and the second screw shaft 8500 are disposed adjacent to each other at the same height, but in FIGS. 14 to 16, the first screw shaft 8300 and the second screw shaft 8500 are Separated up and down are shown.

Similar to the above-described embodiments, this embodiment may have a first state, a second state, and a third state. In the first state, the first footrest 5200 is in the upper part and the second footrest 5400 is in the lower state. In the second state, both the first footrest 5200 and the second footrest 5400 are on the upper side. In the third state, the first footrest 5200 is at the lower side and the second footrest 5400 is at the upper side.

As the user uses the urinal, the state of the footrest may repeat'first state -> second state -> third state -> second state -> first state'. The'first state -> second state -> third state' or the'third state -> second state -> first state' becomes one cycle.

Referring to Fig. 14, the first state will be described.

The first cam 9610 of the first camshaft 9600 is in a standing state. Accordingly, the rib 5220 of the first footrest 5200 may be supported on the short side of the first cam 9610 of the first camshaft 9600. Therefore, the first footrest 5200 may be located on the upper side.

The second cam 9210 of the second camshaft 9200 is in a lying state. The rib 5420 of the second footrest 5400 may be supported on the long side of the second cam 9210 of the second camshaft 9200. Accordingly, the second footrest 5400 may be located below.

Next, the connection relationship between the first camshaft gear unit and the first rack gear unit in the first state, and the connection relationship between the second camshaft gear unit and the second rack gear unit will be described.

The 1-L camshaft gear part 9500 may be located in a non-removable part of the 1-L rack gear part 8460. The 1-R camshaft gear portion 9500a may also be located in the non-removable portion of the 1-R rack gear portion 8460a. On the other hand, the 2-L camshaft gear portion 9400 may be located on the toothed portion 8362 of the 2-L rack gear portion 8360. The 2-R camshaft gear portion 9400a may also be located on the toothed portion 8362a of the 2-R rack gear portion 8360a.

In order to change from the first state of FIG. 14 to the second state of FIG. 15, the first footrest 5200 must maintain the upper position, and the second footrest 5400 must rise from the bottom to the upper side.

With reference to FIGS. 14 and 15, the transition from the first state to the second state will be described.

First, the movement of the first footrest 5200 will be described.

In the first state of FIG. 14, the second screw shaft 8500 rotates clockwise (R1). Then, the 1-L rack gear portion 8460 and the 2-R rack gear portion 8360a provided on the second screw shaft 8500 may linearly move to the right side M1.

The second screw shaft gear 8520 of the second screw shaft 8500 and the second screw shaft gear 8320 of the second screw shaft 8300 are engaged. Accordingly, when the second screw shaft 8500 rotates in a clockwise direction, the first screw shaft 8300 rotates in a counterclockwise direction.

When the first screw shaft 8300 rotates counterclockwise (R1a), the 2-L rack gear portion 8360 and the 1-R rack gear portion 8260a provided on the first screw shaft 8300 Can move linearly to the left (M1a).

On the other hand, in the first state, the 1-L camshaft gear portion 9500 may be located in the beach-shaped portion of the 1-L rack gear portion 8460. Accordingly, even if the 1-L rack gear portion 9500 moves to the right, the 1-L camshaft gear portion 8460 does not rotate. Therefore, the 1-L camshaft 9600 also does not rotate.

In addition, in the first state, the 1-R camshaft gear portion 9500a may be located in the non-removable portion of the 1-R rack gear portion 8460a. Accordingly, even if the 1-Rth rack gear portion 8460a moves to the left, the 1-Rth camshaft gear portion 9500a does not rotate. Therefore, the 1-R camshaft 9600a also does not rotate.

In summary, even if the first screw shaft 8300 and the second screw shaft 8500 rotate, the first cam shaft, that is, the 1-L cam shaft 9600 and the 1-R cam shaft 9600a does not rotate. Therefore, the first footrest 5200 maintains the upper position.

On the other hand, when the conversion from the first state to the second state is completed, the 1-L rack gear portion 8260 moves to the right and the 1-R rack gear portion 8460a moves to the left, Engagement starts with the camshaft gear unit 9500 and the 1-R camshaft gear unit 9500a (see Fig. 15).

Next, the movement of the second footrest 5400 will be described.

In the first state, the 2-L camshaft gear portion 9400 may be located in the toothed portion of the 2-L rack gear portion 8360, and the 2-R camshaft gear portion 9400a is also the 1-R. It may be located in the toothed portion of the rack gear portion (8360a).

Accordingly, when the 2-L rack gear portion 8360 moves to the left, the 2-L camshaft gear portion 9400 rotates in the counterclockwise direction BL12. Accordingly, the 2-L camshaft 9200 also rotates in a counterclockwise direction.

When the 2-R rack gear portion 8360a moves to the right, the 2-R camshaft gear portion 9400a rotates in the clockwise direction BR12. Accordingly, the 2-R camshaft 9200a also rotates clockwise.

In summary, when the first screw shaft 8300 and the second screw shaft 8500 rotate, the second cam shaft, that is, the 2-L cam shaft 9200 and the 2-R cam shaft 9200a rotate. Accordingly, the second footrest 5400 rises from the bottom to the top.

When the conversion from the first state to the second state is completed, the 2-L rack gear part 8360 moves to the left and the engagement with the 2-L camshaft gear part 9400 is released. The 2-R rack gear portion 8360a is moved to the right and the engagement with the 2-R camshaft gear portion 9400a is released (see FIG. 15).

In summary, when the second screw shaft 8500 rotates clockwise in the first state of FIG. 14, the second state of FIG. 15 may be obtained.

In order to change from the second state of FIG. 15 to the third state of FIG. 16, the second footrest 5400 must maintain the upper position, and the first footrest 5200 must descend from the top to the bottom.

With reference to FIGS. 15 and 16, the transition from the second state to the third state will be described.

First, the movement of the second footrest 5200 will be described.

In the second state of FIG. 15, the second screw shaft 8500 continues to rotate (R2) in the clockwise direction. Then, the 1-L rack gear portion 8360 and the 2-R rack gear portion 8460a provided on the second screw shaft 8500 may continue linear motion toward the right side M2.

The second screw shaft gear 8520 of the second screw shaft 8500 and the first screw shaft gear 8320 of the first screw shaft 8300 are engaged. Accordingly, when the second screw shaft 8500 rotates in a clockwise direction, the first screw shaft 8300 may continue to rotate R2a in a counterclockwise direction.

When the first screw shaft 8300 rotates in a counterclockwise direction (R2a), the 2-L rack gear portion 8360 and the 1-R rack gear portion 8260a provided on the first screw shaft 8300 Can continue linear motion to the left (M2a).

Meanwhile, in the second state, the 2-L camshaft gear portion 9400 may be located in the non-removable portion of the 2-L rack gear portion 8360. Accordingly, even when the 2-L rack gear portion 8360 moves to the left, the 2-L camshaft gear portion 9400 does not rotate. Therefore, the 2-L camshaft 9200 also does not rotate.

In addition, in the second state, the 2-R camshaft gear portion 9400 may be located in the non-removable portion of the 2-R rack gear portion 8360a. Therefore, even if the 2-R rack gear portion 8360a moves to the right, the 2-R camshaft gear portion 9400 does not rotate. Therefore, the 2-R camshaft 9200a also does not rotate.

In summary, even if the first screw shaft 8300 and the second screw shaft 8500 rotate, the second cam shaft, that is, the 2-L cam shaft 9400 and the 2-R cam shaft 9400a does not rotate. Accordingly, the second footrest 5400 maintains the upper position.

On the other hand, when the conversion from the second state to the second state is completed, the 2-L rack gear part 8360 moves to the left, and the 2-L camshaft gear part 9400 and the meshing are separated. The 2-R rack gear portion 8360a moves to the right, so that the engagement with the 2-R camshaft gear portion 9400a is separated (see FIG. 16).

Next, the movement of the first footrest 5200 will be described.

In the second state, the 1-L camshaft gear portion 9500 may be located in the toothed portion of the 1-L rack gear portion 8460, and the 1-R camshaft gear portion 9500a is also It may be located in the toothed portion of the rack gear portion (8460a).

Accordingly, when the 1-L rack gear portion 8460 moves to the right side M2, the 1-L camshaft gear portion 9500 rotates in the clockwise direction AL23. Accordingly, the 1-L camshaft 9600 also rotates clockwise.

When the 1-Rth rack gear portion 8460a moves to the left side M2a, the 1-Rth camshaft gear portion 9500a rotates in the counterclockwise direction AR23. Accordingly, the 1-R camshaft 9600a also rotates counterclockwise.

In summary, when the first screw shaft 8300 and the second screw shaft 8500 rotate, the first cam shaft, that is, the 1-L cam shaft 9600 and the 1-R cam shaft 9600a rotate. Accordingly, the first footrest 5200 descends from the top to the bottom.

When the conversion from the second state to the third state is completed, the 1-L rack gear portion 8460 moves to the right to maintain engagement with the 1-L camshaft gear portion 9500. The 1-R rack gear portion 8260a moves to the left to maintain engagement with the 1-R camshaft gear portion 9500a (see FIG. 16).

In summary, when the first screw shaft 830 rotates clockwise in the second state of FIG. 15, the third state of FIG. 16 may be achieved.

As described above, while the second screw shaft 8500 rotates in a clockwise direction, a cycle of the first state -> the second state -> the third state ('first cycle' for convenience) may be performed.

On the other hand, when the second screw shaft 8500 rotates counterclockwise while the first cycle is completed, the cycle in the third state -> the second state -> the first state (the'second cycle' for convenience) is performed. I can.

That is, when the second screw shaft 8500 rotates counterclockwise, it may be converted from the third state to the second state. When the counterclockwise rotation of the second screw shaft 8500 continues, the second state may be changed to the first state.

Since the operation of the second cycle is the opposite of the operation of the first cycle described above, a description thereof will be omitted.

Referring to FIG. 17, mutual motion of the camshaft gear unit and the rack gear unit will be described in detail. The second camshaft gear portion 9400 and the second rack gear portion 8360 will be described as an example.

When the second rack gear part 8360 moves linearly to the left, the states of the second rack gear part 8360 and the second camshaft gear part 9400 may change from (a) to (f) of FIG. 17. have.

17(a) shows a state in which the second camshaft gear part 9400 is located at the left end of the second rack gear part 8360. The toothed portion 9420a of the second camshaft gear portion 9400 and the toothed portion 8362a of the second rack gear portion 8360 are engaged at the left end.

In this state, the body 9452 of the second camshaft gear portion 9400 may be at a position corresponding to the first space 8366 of the second rack gear portion 8360. In addition, the curved portion 9452a of the body 9452 of the second camshaft gear portion 9400 may be positioned in front of the guide 8362 of the second rack gear portion 8360.

As shown in Fig. 17(b), in a state in which the teeth 9420a of the second camshaft gear portion 9400 and the teeth 8362a of the second rack gear portion 8360 are engaged, the second rack gear The unit 8360 may start a linear motion to the left.

When the second rack gear portion 8360 linearly moves to the left, the pinion portion 9420 of the second camshaft gear portion 9400 may rotate in a counterclockwise direction. The body 9452 connected to the pinion portion 9420 of the second camshaft gear portion 9400 may also rotate in a counterclockwise direction.

Since the body 9452 is located in the first space 8366 in front of the guide 8362, the body 9452 can rotate without interfering with the guide 8362. In addition, since the curved portion 9452a of the body 9452 is located in front of the guide 8362, the body 9452 can be further prevented from interfering with the guide 8362.

As shown in Fig. 17(c), when the second rack gear part 8360 proceeds in a certain linear motion to the left, the teeth 9420a of the second camshaft gear part 9400 and the second rack gear part ( The meshing of the teeth 8362a of the 8360 is separated.

At this time, the second camshaft gear unit 9400 is also in a state in which the rotation in the counterclockwise direction has progressed to some extent. Accordingly, the first linear portion 9352b of the body 9452 of the second camshaft gear portion 9400 may come into contact with the bottom surface of the guide 8362 of the second rack gear portion 8360.

17(d) to (e) show a state in which the teeth 9452a of the second camshaft gear portion 9400 and the teeth 8362a of the second rack gear portion 8360 are separated from each other. Therefore, in this state, even if the second rack gear portion 8360 continues to move to the left, the second camshaft gear portion 9400 does not rotate in the counterclockwise direction.

That is, even if the second rack gear part 8360 moves horizontally, the second camshaft gear part 9400 may be in a stopped state. At this time, the body 9452 of the second camshaft gear unit 9400 is located in the second space 8368 created by the guide 8362 of the second rack gear unit 8360. Accordingly, the guide 8362 of the second rack gear portion 8360 may be supported by the body 9452 of the second camshaft gear portion 9400.

In this state, when the second rack gear part 8360 moves horizontally, the guide 8362 of the second rack gear part 8360 can slide while being supported by the body 9452 of the second camshaft gear part 9400. have.

As shown in Fig. 17(f), when the horizontal movement of the second rack gear part 8360 is completed, the body 9452 of the second camshaft gear part 942 is guided by the second rack gear part 8360 (8364) and match each other. Accordingly, it is possible to prevent the second camshaft gear unit 9400 from moving.

An example of installation of the first footrest 5200, the second footrest 5400, and the base 5600 will be described with reference to FIG. 18.

The water housing 6 may be accommodated in the base housing 3. An electric room 7 may be provided on one side of the base housing 3. A first footrest 5200, a second footrest 5400, and a base 5600 may be installed on the water housing 6.

In this embodiment, the first footrest 5200, the second footrest 5400, and the base 5600 may be assembled into a single footrest assembly. Such a footrest assembly may be detachably assembled to the water housing 6.

Therefore, if necessary, the footrest assembly can be separated from the water housing 6, and the first footrest 5200, the second footrest 5400, and the base 5600 can be separated from the footrest assembly, respectively. Therefore, when necessary, the first footrest 5200, the second footrest 5400, and the base 5600 can be cleaned.

Meanwhile, the water housing 6 may have a predetermined space and the upper portion may be opened. Washing water may be accommodated under the water housing 6. A support part 62 on which the base 5600 of the footrest assembly is seated may be provided at the edge of the water housing 6.

The base housing 3 may have a predetermined space, and an upper portion may be opened. The water housing 6 may be accommodated in the base housing 3.

An electric room 7 may be disposed on one side of the base housing 3. Various power transmission mechanisms for driving the first footrest 5200 and the second footrest 5400 may be disposed in the battlefield 7.

For example, the battlefield 7 may include a first battlefield 72 and a second battlefield 74.

The first electric machine chamber 72 may accommodate a first screw shaft, a rack gear portion provided on the first screw shaft, a camshaft gear portion connected to the rack gear portion, and the like. The second electric machine chamber 74 may accommodate a second screw shaft, a rack gear portion provided on the second screw shaft, a camshaft gear portion connected to the rack gear portion, and the like.

Meanwhile, in order to rotatably support the first camshaft 9600 and the second camshaft 9200, slots 64 corresponding thereto may be provided at predetermined positions of the water housing 6, respectively. Slots 34 for rotatably supporting the first camshaft 9600 and the second camshaft 9200 may be provided at a predetermined position of the base housing 3, respectively.

The slot 34 of the base housing 3 may be disposed at a position corresponding to the slot 64 of the water housing 6. The vertical length of the slot 34 of the base housing 3 may be longer than the vertical length of the slot 64 of the water housing 6.

Rubber packings 340 and 640 for preventing water leakage may be provided in the slot 34 of the base housing 3 and the slot 64 of the water housing 6, respectively.

Meanwhile, a slot 74 through which a camshaft connected to the second screw shaft passes may be provided in the partition wall 720 that divides the first and second electrical chambers 72 and 74. Further, the partition wall 720 may be provided with a slot 76 for engaging the first screw shaft gear of the first screw shaft and the second screw shaft gear of the second screw shaft.

Meanwhile, a water supply pipe 42 and a drain pipe 46 may be provided between the water housing 6 and the base housing 3. Clean washing water may flow into the water housing 6 through the water supply pipe 42, and contaminated washing water may be drained through the drain pipe 46. An overflow hole 48 may be provided in the base housing 3.

On the other hand, in this embodiment, the vertical height of the sanitary scaffolding device can be reduced. Therefore, when the sanitary scaffolding device is embedded in the floor or installed on the upper surface of the floor, the vertical height is reduced.

Meanwhile, in each of the above-described embodiments, at least one of the portions described in other embodiments may be equally applied to a portion not described in each embodiment.

In addition, unless the matters described in each embodiment are arranged with each other, even if there is no special mention, the technical matters described in one embodiment may be applied in the same or similar manner in other embodiments.

The present invention is not limited to the embodiments described above, and various modifications and variations are possible from these descriptions to those of ordinary skill in the art to which the present invention pertains, and these modifications and variations are the scope of the present invention.

14: urinal 10: housing
5: footrest 52: first footrest
54: second footrest

Claims (22)

A first link and a first scaffold including a 2-1 link and a 2-2 link rotatably connected to both sides of the first link;
A second link including a second link and a second link and a second link rotatably connected to both sides of the second link, and a second footrest disposed alternately with the first footrest;
A first shaft connected so as to constrain rotation with the second link of the first scaffold, and connected so that rotation with the second link of the second scaffold is not restricted;
A second shaft connected so as not to restrict rotation with the 2-2 link of the first footrest, and connected so that rotation with the 2-2 link of the second footrest is restricted;
It accommodates washing water, and includes a housing in which the first and second scaffolds are installed,
A sanitary scaffolding device for moving the first scaffold up and down by the rotation of the first shaft, and for moving the second scaffold up and down by the rotation of the second shaft. The method of claim 1, wherein the first axis and the second axis are provided with a circular cross-section and a non-circular cross-section, and in the circular cross-section, the second link of the first footrest and the second link of the second footrest Is coupled, and the second link of the first footrest and the second link of the second footrest are coupled to the non-circular cross-section. The method of claim 1, wherein the first shaft and the second shaft are provided with a first shaft gear part and a second shaft gear part, respectively, and the first shaft gear part and the second shaft gear part are provided with a first shaft rack gear. The secondary and the second axis rack gear are connected respectively,
The first shaft rack gear part and the second shaft rack gear part each include a toothed part and a beach part, and the first shaft rack gear part and the second shaft rack gear part are screwed with a third shaft, and the second shaft rack gear part The screwing direction of the one-axis rack gear part and the screwing direction of the second-axis rack gear part are provided opposite to each other,
Sanitary scaffolding apparatus, characterized in that the first shaft and the second shaft selectively rotate by rotation of the third shaft. 4. The sanitary scaffolding apparatus according to claim 3, wherein the first shaft gear part and the second shaft gear part each include a toothed part and a non-woven part. The sanitary scaffolding apparatus according to claim 4, wherein a third shaft gear is provided on the third shaft, and a fourth shaft gear provided on the fourth shaft is engaged with the third shaft gear. The sanitary scaffolding apparatus according to claim 5, wherein a fourth shaft drive gear is provided on the fourth shaft, and a main drive gear provided on a rotation shaft connected to the actuator is engaged with the fourth shaft drive gear. 7. The sanitary scaffolding apparatus according to any one of claims 1 to 6, wherein the housing includes a water housing for accommodating the washing water and a base housing for accommodating the water housing. The hygiene according to claim 7, wherein the water housing is provided with a slot for supporting the first shaft and the second shaft, and the base housing is provided with a groove for supporting the first shaft and the second shaft. Scaffolding device. The sanitary scaffolding apparatus according to claim 8, wherein a water supply pipe for supplying the washing water and a drain pipe for discharging the washing water are connected to the water housing. A first footrest including a plurality of ribs and support portions respectively connected to both sides of the ribs;
A second footrest including a plurality of ribs and supporting portions respectively connected to both sides of the rib, and insertable into the inside of the first footrest;
A first link member connected to the first footrest and having a plurality of links;
A second link member connected to the second footrest and having a plurality of links;
It accommodates washing water, and includes a housing in which the first and second scaffolds are installed,
A sanitary scaffolding device for moving the first footrest up and down by the linear motion of the first link member, and for moving the second footrest up and down by the linear motion of the second link member. The sanitary scaffolding apparatus according to claim 10, wherein the support portion of the second footrest is located inside the support portion of the first footrest, and the height of the support portion of the second footrest is smaller than the height of the support portion of the first footrest. . A first scaffold including a plurality of ribs and a connecting portion to which one side of the ribs is connected;
A second scaffold including a plurality of ribs and a connecting portion to which one side of the ribs is connected;
A first cam shaft including a first cam supporting the rib of the first footrest;
Including a second cam shaft including a second cam for supporting the rib of the second footrest;
Sanitary scaffolding device for moving the first footrest up and down by the rotation of the first camshaft, and for moving the second footrest up and down by the rotation of the second camshaft. The method of claim 12, further comprising a base for accommodating the first footrest and the second footrest, wherein the base is provided at an upper portion corresponding to a connection portion between the first footrest and the second footrest, and the second footrest Sanitary scaffolding apparatus comprising an opening corresponding to the ribs of the first footrest and the second footrest. The sanitary scaffolding apparatus according to claim 13, wherein a guide shaft is provided in the first and second scaffolds, and a guide groove through which the guide shaft is guided is provided in the base. The method of claim 13, wherein the first camshaft and the second camshaft are provided with a first camshaft gear unit and a second camshaft gear unit, respectively, and a first rack gear unit is provided at the first camshaft gear unit and the second camshaft gear unit. And the second rack gear units are connected to each other, and the first rack gear unit and the second rack gear unit include a toothed unit and a beach type unit, respectively,
The sanitary scaffolding apparatus, wherein the first camshaft gear portion is selectively rotatable by linear motion of the first rack gear portion, and the second camshaft gear portion is selectively rotatable by linear motion of the second rack gear portion. The method of claim 15, further comprising a first screw shaft,
The first rack gear portion and the second rack gear portion are screwed to the first screw shaft,
The teeth of the first rack gear portion of the first screw shaft and the teeth of the second rack gear portion of the first screw shaft are arranged opposite to each other,
The sanitary scaffolding device, wherein the first camshaft gear unit and the second camshaft gear unit selectively rotate by rotation of the first screw shaft. The method of claim 16, further comprising a second screw shaft meshing with the first screw shaft,
The first rack gear part and the second rack gear part are screwed to the second screw shaft,
The teeth of the first rack gear portion of the second screw shaft and the teeth of the second rack gear portion of the second screw shaft are arranged opposite,
The second screw shaft rotates by the rotation of the first screw shaft, and the first camshaft gear part of the second screw shaft and the second camshaft gear part of the second screw shaft selectively rotate by rotation of the second screw shaft. Sanitary scaffolding device, characterized in that to. The method according to any one of claims 15 to 17, wherein the first camshaft gear part and the second camshaft gear part include a pinion part and a body connected to the pinion,
Wherein the first rack gear unit and the second rack gear unit include a rack unit selectively engaged with the pinion unit, and a guide connected to the rack unit and capable of accommodating the body. 19. The sanitary footrest apparatus according to claim 18, wherein the body has a curved portion. The sanitary scaffolding apparatus according to claim 19, wherein the guide has a horizontal portion and a vertical portion. A housing for receiving washing water;
A first footrest disposed in the housing and movable up and down;
Including a second footrest disposed in the housing and movable up and down independently of the first footrest,
At least one of the first footrest and the second footrest is always positioned above the housing. A housing for receiving washing water; In the sanitary scaffolding device disposed on the housing and including a first scaffold and a second scaffold that are movable up and down,
A first step of positioning the first footrest on the upper portion of the housing and positioning the second footrest on the lower portion of the housing;
A second step of placing the first footrest on the upper portion of the housing as it is and moving the second footrest to the upper portion of the housing, thereby positioning both the first footrest and the second footrest above the housing;
A control method of a sanitary scaffolding apparatus comprising a third step of moving the first scaffold to a lower portion of the housing to place the first scaffold under the housing, and to position the second scaffold above the housing as it is

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