JPH0810186A - Driving device of toilet seat - Google Patents

Abstract

PURPOSE:To easily sit down or stand up in a stable posture when standing up from a sitting condition on a toilet seat or sitting thereon, by driving the toilet seat for the vertical and slanting movement by means of a power source. CONSTITUTION:Extensible parts 4 are formed at both sides of a toilet 1 and a toilet seat 2 is supported between the upper ends of the extensible parts 4. One driving power source is built-in in one of extensible parts 4 which is vertically stretched by a direct driving actuator as the driving source. Rotary cams 8 rotating by the interlocking movement with the extending or contracting movement are arranged in the extensible parts 4 respectively and spiral grooves 7 are made around the rotary center. A support shaft 9 is fitted in the spiral groove 7. The position of support shaft 9 varies in accordance with the rotation of rotary cam 8 against the spiral groove 7 and hence, the toilet seat is declined gradually in accordance with the rising movement of the movable legs.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a toilet seat driving apparatus in which a toilet seat is raised and lowered on a toilet bowl, and the toilet seat is configured to be inclined as the toilet seat is lifted from the toilet bowl and to take care of sitting on the toilet bowl. It is about.

[0002]

2. Description of the Related Art In a general toilet, a toilet seat 2 disposed on a toilet 1 is rotatably mounted on a hinge 30 as shown in FIG. In the case of such a structure, the toilet seat 2
When the user sits on the floor or stands up, the user assumes a middle waist posture as shown in FIG. 9B. However, there is a problem that it is difficult for an elderly person or a person with a physical disability to stand or sit, and sometimes a caregiver is needed to perform the operation.

In order to solve this problem, an apparatus disclosed in Japanese Patent Laid-Open No. 305038/1993 is provided as a means for raising and lowering a toilet seat. As shown in FIG. 10, a drive shaft 31 is provided upright on the side of the toilet 1, and the hinge 30 of the toilet seat 2 is driven up and down by the drive shaft 31.
A stopper 32 is attached to the hinge portion 30 to stop the toilet seat 2 at a predetermined angle when the toilet seat 2 is raised. As a result, when the toilet seat 2 floats from the toilet 1,
Is raised or lowered while being supported by the stopper 32 while being inclined at a predetermined angle.

[0004]

In the above-mentioned conventional example, it is somewhat easier to sit and stand by raising and lowering the toilet seat 2. However, when a person sits down, the toilet seat 2 is not connected to the toilet 1 until it comes into contact with the toilet 1. As a result, the angle of inclination becomes constant, and the mid-lumbar posture becomes long, which is very unstable. Further, if the inclination angle of the stopper 32, that is, the maximum inclination angle of the toilet seat 2, is increased, the toilet seat 2 moves from the front of the toilet 1 to the rear when the toilet seat 2 rises, and there is a problem that it becomes difficult to sit.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and an object of the present invention is to provide a stable posture when standing up or sitting on a toilet seat. It is an object of the present invention to provide a toilet seat driving device that can easily perform the following operation and can simplify the mechanism.

[0006]

In order to achieve the above object, the toilet seat drive device of the present invention is designed to raise and lower the toilet seat 2 arranged on the toilet bowl 1 and to incline with the vertical movement. Thus, the vertical movement and the tilting movement of the toilet seat 2 are driven by one power source 3.

In addition, the toilet seat 2 is attached to the upper ends of the pair of left and right stretchable parts 4, and the power source 3 for driving the stretchable part 4 to extend and retract is provided on one of the stretchable parts 4, and the power source 3 is provided. It is also preferable to provide a synchronizing means 5 for expanding and contracting the other expandable part 4 in synchronization with the driving of the expandable part 4. In addition, a toilet seat support portion 1 that supports the toilet seat 2 on the upper ends of the pair of left and right stretchable portions 4.
0 is rotatably attached by a shaft 11, and a rotary cam 8 which is rotatable on both of the expandable and contractible parts 4 in association with the expansion and contraction drive of the expandable and contractible parts 4.
Is provided, the spiral cam 7 is provided with a spiral groove 7 centered around the rotation center of the rotary cam 8, and the support shaft 9 provided in the toilet seat support portion 10 is fitted into the spiral groove 7 to form the rotary cam. With the rotation of 8, the support shaft 9 is made slidable in the spiral groove 7, and the state where the support shaft 9 is located at one end of the spiral groove 7 is the toilet seat 2
It is also preferable to set the state where the support shaft 9 is positioned at the other end of the spiral groove 7 in a substantially horizontal state so that the toilet seat 2 is in the maximum inclined state.

[0008]

According to the above construction, the toilet seat 2 placed on the toilet 1 is vertically moved up and down and is tilted as the toilet seat 2 is raised and lowered. 2 is inclined, so that it is possible to stand up from a state of sitting on the toilet seat 2 in a comfortable posture, and when the toilet seat 2 is lowered, the toilet seat 2 is sequentially horizontal from the inclined state as the toilet seat 2 is lowered. As a result, the inclination angle changes so that the user can sit on the toilet seat 2 in a comfortable posture. In addition, by driving the toilet seat 2 up and down and tilting drive by one power source 3, the toilet seat 2 has a simple configuration.
It is possible to move up and down and tilt drive.

Further, the toilet seat 2 is attached to the upper end portions of the pair of left and right elastic portions 4, the power source 3 for driving the elastic portion 4 to extend and retract is provided on one of the elastic portions 4, and the power source 3 is provided. By providing the synchronization means 5 for expanding and contracting the other expandable part 4 in synchronization with the drive of the expandable part 4, the expandable parts 4 on both sides are synchronized even though only one drive source 3 is provided. It is possible to move up and down and to smoothly expand and contract both elastic parts 4.

A toilet seat supporting portion 10 for supporting the toilet seat 2 is rotatably mounted on the upper end of the pair of left and right telescopic portions 4 by means of a shaft 11. A rotating cam 8 that rotates is provided. The rotating cam 8 is provided with a spiral groove 7 about the center of rotation of the rotating cam 8, and the support shaft 9 provided on the toilet seat support portion 10 is provided with a spiral groove. 7, the support shaft 9 is slidable in the spiral groove 7 with the rotation of the rotary cam 8, and the toilet seat 2 is substantially in a state where the support shaft 9 is located at one end of the spiral groove 7. By setting the state in which the support shaft 9 is positioned at the other end of the spiral groove 7 in the horizontal state so as to be the maximum inclination state of the toilet seat 2, the rotation that rotates in conjunction with the expansion and contraction driving of the expansion and contraction section 4. By the rotation of the moving cam 8, the position of the support shaft 9 is moved along the spiral groove 7,
As a result, the toilet seat support portion 10 rotates about the shaft 11 to incline the toilet seat 2, and the toilet seat 2 can be gradually inclined in response to the expansion and contraction of the elastic portion 4 with a simple configuration. Is.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to the embodiments shown in the accompanying drawings. A telescopic part 4 is provided on both sides of the toilet 1,
The toilet seat 2 is supported between the upper ends of the expandable portions 4, and the toilet seat 2 is located above the toilet bowl 1. The movable leg 13 is inserted into the fixed leg 12 having a tubular shape, and the length of the movable leg 13 protruding from the fixed leg 12 is increased or shortened. Has a structure that expands and contracts up and down. As shown in FIG. 8, an intermediate inclusion 14 provided with a bearing 14a is interposed between the inner surface of the fixed leg 12 and the outer surface of the movable leg 13, and the bearing 14 serves as the inner surface of the fixed leg 12 and the movable leg. The movable leg 13 can be smoothly moved up and down with respect to the fixed leg 12 by being arranged between the fixed legs 12.

One drive source 3 is housed in one of the two extensible portions 4. As the driving source 3,
For example, a direct acting actuator such as a hydraulic cylinder or an air cylinder is used, and in the embodiment, the lower end portion of the direct acting actuator constituting the drive source 3 is the fixed leg 1 as shown in FIG.
The upper end is attached to the movable leg 13, and one of the extensible portions 4 expands and contracts by driving a linear motion actuator that is the drive source 3.

The expansion / contraction part 4 not provided with the power source 3 expands / contracts in synchronization with the driving of the expansion / contraction part 4 provided with the power source 3, and the synchronization means 5 in this case is, for example, as shown in FIG. 3 and as shown in FIG. That is, the pulleys 15 are rotatably attached to the respective fixed legs 12 of the two expansion / contraction parts 4 by the shafts 14, and the two pulleys 16 are rotatably attached to the lower portions of both the fixed legs 12 so that one end is A first wire 18 (which may be a belt or a chain) fixed to a lower part of one movable leg 13 by a fixing tool 17 is wound around a pulley 15, and further, is wound around a pulley 16 below the one fixed leg 12. Further, it is laid around another pulley 16 located below the other fixed leg, and the other end of the first wire 18 is fixed to the other movable leg 13 by a fixing member 17, and one end is A second wire 18 '(which may be a belt or a chain) fixed by a fixing member 17 around the lower part of the movable leg 13 is laid around a pulley 15 provided on the other fixed leg 12, and the other fixed leg 12 is Downward Turn hung on location of the pulley 16, further turn hung on the pulley 16 of the lower position of one of the fixed leg, it is secured by a fastener 17 and the other end of the second wire 18 on one of the movable legs 13. By configuring the synchronizing means 5 in this manner, by driving one drive source 3 built in one telescopic part 4, when one movable leg 13 rises, the second wire 1
When the other movable leg 13 rises in synchronism via 8 'and one movable leg 13 descends, the first wire 18
, The other movable leg 13 descends in synchronization.

A toilet seat 2 is attached to the upper end of the left and right telescopic parts 4 as shown in FIGS. Here, the toilet seat 2 is supported and fixed to a toilet seat supporting portion 10 which is rotatably attached to the telescopic portion 4, respectively. As shown in FIG. 5, the toilet seat supporting portion 10 has a first hanging piece 21 provided downward at one end of a main body 20 supporting the toilet seat 2 and a second hanging piece 21 provided at the other end. 22 are provided. The first hanging piece 21 and the second hanging piece 22 are arranged so as to straddle the upper end portion of the movable leg 13, and are rotatably attached to the movable leg 13 by the shaft 11. A sprocket 23 of the same diameter is vertically rotatably mounted on one side of the movable leg 13, and a chain 24 is hung between the upper and lower sprockets 23. The chain 24 is fixed to the fixed leg 12 by a fixing member 25, as shown in FIGS. Therefore,
When the movable leg 13 moves up and down, the chain 24 is fixed to the fixed leg 12 by the fixing member 25, so that the upper and lower sprockets 23 are rotated by the chain 24. Here, the shaft 27 of the upper sprocket 23 is fixed to the upper sprocket 23, so that the shaft 27 rotates together with the sprocket 23. The shaft 27 protrudes from the other side surface of the movable leg 13, and the rotating cam 8 is fixed to the protruding portion. The rotary cam 8 is provided with a spiral groove 7 about the center of rotation of the rotary cam 8 (that is, the shaft 27). A support shaft 9 protruding from the second hanging piece 22 of the toilet seat support 10 is slidably fitted in the spiral groove 7. Here, as shown in FIG. 6A, the support shaft 9 is located at one end portion of the spiral groove 7 (that is, the end portion at the shortest distance from the center of the spiral groove 7). From the state, the rotating cam 8 is rotated so that the other end of the spiral groove 7 (that is, the spiral groove 7 as shown in FIG. 7A).
The support shaft 9 slides with respect to the spiral groove 7 until the support shaft 9 is positioned at the end of the longest distance from the center of the support shaft 9). The state in FIG. 6 is a position where the toilet seat 2 is in a substantially horizontal state, and the state in FIG.
This is the position where the maximum inclination state is reached. Accordingly, when the movable leg 13 rises from the substantially horizontal state of the toilet seat 2 of FIG. 6 and the upper sprocket 23 rotates, the rotation cam 8 rotates by the rotation of the sprocket 23, and With the movement, the position of the support shaft 9 with respect to the spiral groove 7 sequentially changes from the state of FIG. 6 to the state of FIG.
Is gradually inclined as the movable leg 2 rises, and is operated so as to have the maximum inclination angle at the time of the maximum elevation in FIG. In FIG. 7A, the support shaft 9 is raised by L, and the toilet seat 2 is inclined. When the movable leg 13 is lowered from the maximum tilted state of FIG. 7, the rotating cam 8 rotates in the opposite operation to the above, and the rotation of the rotating cam 8 causes the support shaft 9 to move into the spiral groove 7. The position gradually changes from the state shown in FIG. 7 to the state shown in FIG. 6, whereby the inclination angle of the toilet seat 2 gradually becomes smaller as the movable leg 2 descends, and when the toilet seat 2 is lowered to the maximum in FIG. Put it in a substantially horizontal position.

Therefore, when the user stands up from the state of sitting on the toilet seat 2, by driving one power source 3 to raise one of the expansion / contraction parts 4, the other expansion / contraction via the synchronizing means 5 is performed. The parts 4 are raised synchronously, and at the same time, both the expansion and contraction parts 4
Is rotated in conjunction with the rise of the telescoping portion 4 so that the position of the support shaft 9 with respect to the spiral groove 7 of the rotary cam 8 is sequentially changed.
Is gradually tilted as it rises, and the user can stand up in a comfortable posture while sitting on the toilet seat 2. On the other hand, in order to sit on the toilet seat 2, the retractable portion 4 is raised and the toilet seat 2 is inclined while the toilet seat 2 is inclined, and the retractable portion 4 is lowered from this state. Conversely, toilet seat 2
Gradually lowers the angle of inclination, and at the time when it descends to the maximum, the toilet seat 2 is placed in a substantially horizontal posture, and in this state, the seating on the toilet seat 2 is completed, and it is possible to sit on the toilet seat 2 in an easy posture. You can do it.

[0016]

According to the first aspect of the present invention, the toilet seat placed on the toilet is vertically moved up and down and is tilted with the vertical movement, so that the toilet seat rises and falls vertically. It is easy to sit and sit in a stable position, and the toilet seat is driven up and down with a simple configuration because the toilet seat is driven up and down and tilted drive with one power source. It is possible to provide a device which can be easily performed in a stable posture.

In addition to the effect of the invention described in claim 1, in the invention described in claim 2, a toilet seat is attached to the upper ends of the pair of left and right elastic parts, and one elastic part is provided with the elastic part. Since a power source for driving expansion and contraction is provided and a synchronizing means for expanding and contracting the other expansion and contraction part in synchronization with the driving of the expansion and contraction part on which the power source is provided, power for driving both expansion and contraction parts is provided. Despite the fact that one power source is provided as a power source, both expansion and contraction parts can be synchronously expanded and contracted by the synchronizing means, and the one power source can stably and smoothly raise and lower the toilet seat. .

According to the invention of claim 3, in addition to the effect of the invention of claim 1 or claim 2, a toilet seat support portion for supporting the toilet seat is provided at the upper ends of the pair of left and right expandable portions. A pivoting cam that is attached rotatably by a shaft, and a pivoting cam that pivots in conjunction with the extension / contraction drive of the extension / contraction portion is provided on each of the extension / contraction portions. The support shaft provided in the toilet seat support is fitted into the spiral groove, and the support shaft is slidable in the spiral groove as the rotating cam rotates, and is supported at one end of the spiral groove. The toilet seat is placed in a substantially horizontal position when the shaft is positioned, and the maximum inclination of the toilet seat is set when the support shaft is positioned at the other end of the spiral groove. The rotation of the rotating cam that rotates in conjunction causes the position of the support shaft to move along the spiral groove. It is in, which seat supporting portion around the shaft to tilt the seat by rotating, in which it is possible to gradually tilt the seat in response to expansion and contraction of the extensible portion with a simple structure.

[Brief description of drawings]

FIG. 1 is a partially cutaway front view of a state in which a toilet seat according to an embodiment of the present invention is raised.

FIG. 2 is a side view showing a state where the toilet seat is raised.

FIG. 3 is a partially broken perspective view showing the synchronization means according to the first embodiment;

FIG. 4 is a cross-sectional view showing the synchronization means according to the first embodiment.

FIG. 5 is a partially broken perspective view showing a mechanism for tilting the toilet seat of the above.

6A and 6B are explanatory views showing that the toilet seat support portion is in a substantially horizontal state, FIG. 6A is a diagram showing a positional relationship between a spiral groove and a support shaft, and FIG. It is explanatory drawing which shows the relationship between a member, a movable leg, and a toilet seat support part.

7A and 7B are explanatory views showing a positional relationship between a spiral groove and a support shaft, and FIG. 7A is a diagram illustrating a positional relationship between a spiral groove and a support shaft. FIG. 5 is an explanatory diagram showing a relationship among a connecting member, a movable leg, and a toilet seat support.

FIG. 8 is an exploded perspective view showing the fixed leg, the movable leg, and the bearing in the same.

9A and 9B show a conventional example, wherein FIG. 9A is a side view of a seated state, and FIG. 9B is a side view of a middle waist state.

10A and 10B show another conventional example, in which FIG. 10A is a side view with the toilet seat lowered, and FIG. 10B is a side view with the toilet seat raised.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Toilet bowl 2 Toilet seat 3 Power source 4 Expansion / contraction part 7 Spiral groove 8 Rotating cam 9 Support shaft 10 Toilet seat support part 11 Shaft

Claims (3)

[Claims] 1. A toilet seat disposed on a toilet is vertically moved up and down and tilted with the vertical movement.
A toilet seat drive device, characterized in that the vertical movement and tilt drive of the toilet seat are driven by one power source. 2. A toilet seat is attached to the upper ends of a pair of left and right telescopic parts, a power source for driving the telescopic part to extend and retract is provided on one of the telescopic parts, and the power source is provided in synchronization with the driving of the telescopic part. 2. The drive device for a toilet seat according to claim 1, further comprising a synchronizing means for expanding and contracting the other elastic part. 3. A rotating cam that pivotally mounts a toilet seat support portion for supporting a toilet seat on the upper ends of a pair of left and right expandable and contractable portions, and that rotates on both expandable and retractable portions in association with expansion and contraction driving of the expandable and retractable portions. The swivel groove is provided on the swivel cam, and the swivel groove centering around the swivel center of the swivel cam is provided, and the support shaft provided in the toilet seat support is fitted into the swirl groove to support the swivel cam as it turns. The shaft is slidable in the spiral groove, and the support shaft is located at one end of the spiral groove when the toilet seat is substantially horizontal, and the support shaft is located at the other end of the spiral groove. 3. The toilet seat drive device according to claim 1 or 2, wherein is set so that the toilet seat is in a maximum inclined state.