JP2002345661A - Wash stand - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a safe, quiet and economical wash stand with excellent handleability for anyone. SOLUTION: The wash stand 10 is provided with a wash stand main body 12. The wash stand main body 12 is provided with a basin 14, a basin receiving base 16 and a cover part 18 and the basin receiving base 16 and the cover part 18 are freely turnably connected by a pivot part 13. The wash stand main body 12 is arranged so as to be moved back and forth in a vertical direction by an actuator such as a cylinder 20 for which city water or instance is used for the medium of driving power transmission. A switch means operating the actuator is provided with an operation part 128 arranged at a part of the wash stand main body 12. By raising and lowering the operation part 128, the switch means is operated and the actuator is operated.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a wash basin,
In particular, the present invention relates to a wash basin whose height can be adjusted according to user's convenience.

[0002]

2. Description of the Related Art As a conventional height-adjustable wash basin as a background of the present invention, there has been known one using an actuator such as an electric cylinder, a pneumatic cylinder and a hydraulic cylinder.

[0003]

However, such a conventional height-adjustable wash basin has various problems. In other words, considering the environment of a wash basin, the one using an electric cylinder may cause an electric leakage or an electric shock, and it is necessary to take thorough measures against them. It is very dangerous if a short circuit or electric shock occurs. In addition, adverse effects such as electromagnetic waves must be considered. In addition, those using an electric cylinder require devices such as an electric motor and a speed reducer, so that the initial cost of the device is high and power is required, so that the running cost is also high. In the case of using a pneumatic cylinder and a pneumatic motor, pneumatic devices such as a compressor and an air pressure adjusting unit are required, and a space for installing them must be ensured, and further, problems such as loud noise occur. Further, those using a hydraulic cylinder and a hydraulic motor require hydraulic equipment such as a hydraulic pump, a hydraulic filter, a hydraulic control valve, and the like, and there is a possibility of so-called oil leakage from operating equipment leaking from the hydraulic equipment. Considering the environment, it was a problem. Further, in a height adjustable type wash basin using the above-described various devices, a switch / operation unit for operating height adjustment is often arranged at a place away from the wash basin main body, particularly It is difficult for users such as elderly people, physically handicapped people, and children to operate. Therefore, for example, when a wheelchair user performs an erroneous operation, it is difficult to make an emergency stop, and the weight of the water in the wash basin and the wash basin and the weight of the device may be applied to the knees and the like to cause an injury.

[0004] It is therefore a primary object of the present invention to provide an economical wash basin that is safe, quiet, and easy to use for everyone.

[0005]

According to a first aspect of the present invention, there is provided a wash basin capable of moving up and down by an actuator which uses working water such as tap water having a predetermined pressure as a medium for power transmission. The switch means for operating the actuator is provided in a part of the wash basin main body, and is activated when a force acts on the wash basin main body from the outside. A wash basin according to a second aspect of the present invention is dependent on the wash basin according to the first aspect, wherein the actuator is also used as a support means for supporting the wash basin main body so as to be vertically reciprocally displaceable. , A wash basin including a cylinder operated by the operating water. A basin according to a third aspect of the present invention is dependent on the basin according to the second aspect, wherein the supporting means includes a guide rail post extending in a vertical direction, and a cylinder supporting member for supporting the cylinder. Wherein the cylinder supporting member is disposed so as to be movable in the axial direction of the guide rail post, and the reference position of the stroke range of the piston rod of the cylinder can be appropriately changed. A basin according to a fourth aspect of the present invention is dependent on the basin according to the second or third aspect, and includes a guide roller that can roll along an axial direction of the guide rail post, The wash basin according to the present invention, further comprising another supporting means for supporting the wash basin main body displaceably along the axial direction of the guide rail post. A wash basin of the present invention according to claim 5 is dependent on the wash basin according to any one of claims 1 to 4, wherein the wash basin includes a wash basin main body, A basin ball and a basin basin disposed on the other supporting means and holding the basin ball,
Pivotally connected to the washbasin by the pivot,
And a cover portion for covering the washbasin and the washbasin bowl, wherein the switch means is operated by displacement of the cover portion due to rotation of the pivot portion. A basin according to a sixth aspect of the present invention is dependent on the basin according to the fifth aspect, wherein the switch means includes an A port, a P port, and an R port, and starts and stops the actuator. A directional control valve to be controlled, a check valve for preventing backflow of the operating water to the P port when the A port and the R port of the directional control valve communicate with each other, and a check valve connected to a valve rod of the directional control valve; A switching lever for switching a neutral position of the directional control valve, and a holding means for holding the cover so as to hold the neutral position of the directional control valve, wherein the directional control valve is supported on the washbasin ball receiving side; A wash basin characterized in that the switch lever is switched in conjunction with the displacement of the cover portion. A wash basin of the present invention according to claim 7 is dependent on the wash basin according to claim 6,
The holding means includes an urging means for constantly urging the cover so as to hold the neutral position of the direction control valve,
An end of the urging means is locked to an end of the cover portion, and the other end of the urging means is locked to an end of the basin receiving pedestal.

[0006]

According to the first aspect of the present invention, the wash basin moves up and down by the action of the actuator using the working water as a power transmission medium. When a force acts on the wash basin body from the outside, the switch means operates. As a result, the actuator is operated, and the sink can be moved up and down. In this case, since the switch means for operating the actuator is arranged in a part of the washstand body,
Compared to the prior art in which the switch / operation unit is arranged at a position separated from the washstand body, the operability is excellent and the usability is high. Moreover, the switch means operates only by applying a force to the wash basin body from the outside, so even if the user operates it by mistake, it is possible to operate the switch means by touching a part of the wash basin body As a result, the raising and lowering operation of the wash basin can be stopped urgently. Further, as a power source and a power transmission medium for raising and lowering the wash basin, working water such as tap water having a predetermined pressure is used. Therefore, in the wash basin of the present invention according to claim 1, there is no fear of electric shock or electric leakage, and no adverse effects due to electromagnetic waves, as compared with the related art using the electric cylinder. In addition, devices such as an electric motor and a speed reducer become unnecessary, and electric power becomes unnecessary. Also, compared to the conventional technology using a pneumatic cylinder requiring various pneumatic devices, the noise is extremely low and the device is very quiet.
Furthermore, compared with the conventional technology using a hydraulic cylinder that requires various hydraulic devices, the environment is very clean without the fear of oil leakage or the like and considering the environment of a wash basin. In the wash basin of the present invention according to claim 2, the actuator operates so as to be able to reciprocate the wash basin body in the vertical direction by the action of the cylinder. In this case, the cylinder is capable of vertically reciprocatingly displacing the wash basin main body, and also has a function as a support means for supporting the wash basin main body. In the third aspect of the present invention, the cylinder is supported by the cylinder support member. The cylinder support member is movably arranged along the axial direction of the guide rail post. Therefore, by appropriately disposing the cylinder support member at a predetermined position in the axial direction of the guide rail post, the reference position of the stroke range of the piston rod of the cylinder can be appropriately changed. In the wash basin of the present invention according to claim 4, the main body of the wash basin is displaced in the axial direction of the guide rail post by the action of the guide roller of the other support means. The other support means also has a function of supporting the wash basin body in this case, and in this case, assists the support function of the cylinder supporting the wash basin body. In the basin of the present invention according to claim 5, the switch means is operated by rotating and displacing the cover portion with the pivot portion as a fulcrum. When the switch means is operated, the wash basin can be moved up and down. In the basin of the present invention according to claim 6, the start and stop of the actuator are controlled by the operation of the direction control valve. Further, by the action of the check valve, when the A port and the R port of the directional control valve communicate with each other, the backflow of the working water to the P port is prevented. By the operation of the holding means, the cover is held so as to hold the directional control valve in the neutral position. In this case, when the cover is displaced,
The switching lever is appropriately switched from the neutral position of the direction control valve in conjunction with the displacement. Therefore, the sink is moved up and down. In the wash basin of the present invention according to claim 7,
By the action of the biasing means, the cover is constantly biased so as to maintain the neutral position of the directional control valve. In this case, the cover is displaced and the directional control valve is actuated, whereby
After the lifting operation of the wash basin is completed, the cover returns to the original position by the urging force of the urging means. At this time, in order to maintain the original neutral position, the direction control valve stops the start of the actuator that moves the washstand up and down.

The above and other objects, features and advantages of the present invention will become more apparent from the following detailed description of embodiments of the present invention with reference to the drawings.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION

FIG. 1 is a perspective view showing an example of a wash basin according to the present invention, and FIG. 2 is a perspective view of a main part when the wash basin of the embodiment shown in FIG. 1 is viewed from the back side. FIG.
FIG. 4 is a side elevational view of a main part of the sink of the embodiment shown in FIG.
FIG. 4 is an exploded side view of an essential part of FIG.

The wash basin 10 includes, in particular, a wash basin body 12, as shown, for example, in FIG. The basin body 12 includes a basin ball 14 having a predetermined shape.
It is held by the washbasin ball cradle 16. Further, the basin ball 14 held by the basin ball cradle 16 is covered by the cover portion 18.

In this embodiment, in particular, as shown in FIG. 3, for example, the washbasin ball receiving base 16 and the cover 18 are rotatably connected by a pivot 13 formed by pins or the like. In this case, in particular, as shown in FIG.
And a through hole 19. And the washbasin 14,
The pivot 13 is disposed in the through holes 17 and 19 when the washbasin ball receiver 16 and the cover 18 are assembled.

The wash basin body 12 is supported by the support means so as to be displaceable in a reciprocating linear motion in the vertical direction. The support means includes an actuator 20 using hydraulic water having a predetermined pressure as a medium for power transmission. In this embodiment, tap water having a pressure of, for example, about 0.3 MPa to 0.5 MPa is used as the working water. Also, the actuator 20
For example, a reciprocating actuator having a linear output displacement, in this case, a cylinder or the like is used. That is, in the present embodiment, the actuator 20 is configured by a hydraulic cylinder driven by tap water. In the description of the present embodiment, the actuator 20 is hereinafter referred to as a cylinder 20 for convenience.

The support means includes, for example, two guide rail posts 22 and 24 extending in the vertical direction as shown in FIGS. The two guide rail posts 22 and 24 are arranged parallel to each other at a predetermined interval in the horizontal direction, and are provided vertically.
In the present embodiment, two guide rail posts 22 and 24
Is disposed, for example, on a wall surface W at a desired place.

That is, in this embodiment, the upper bracket 2
6 and the lower bracket 28 support the two guide rail posts 22 and 24 on the wall surface W. The upper bracket 26 and the lower bracket 28 each have a function as a cross beam member for supporting the two guide rail posts 22 and 24. The upper bracket 26 and the lower bracket 28 are respectively disposed horizontally on the wall surface W at predetermined intervals in the vertical direction. The upper bracket 26 and the lower bracket 28 are detachably attached and fixed to the wall surface W by attaching / fixing means 30 such as bolts on both sides in the length direction.

In this embodiment, the upper bracket 26 and the lower bracket 28 are formed in a horizontally long rectangular shape.
The lower bracket 28 has, for example, an inverted U-shaped notch 28a in a plan view at the center in the length direction. The notch 28a has a function of preventing the lower end of the cylinder 20 from hitting the lower bracket 28 and causing inconvenience when the mounting position of the cylinder 20 is changed.

The upper ends of the two guide rail posts 22 and 24 in the axial direction are fixed to the lower surface of the upper bracket 26 by fixing means such as welding. The lower end portions of the two guide rail posts 22 and 24 in the axial direction are used to prevent the two guide rail posts 22 and 24 from swinging.
It is supported by the lower bracket 28. As this supporting method, for example, a through hole or a bottomed hole may be provided in the lower bracket 28, and the two guide rail posts 22 and 24 may be inserted and supported in the through hole or the bottomed hole. In this case, the lower bracket 28 is
Is not fixed to the two guide rail posts 22 and 24. For this reason, the mounting and fixing position of the lower bracket 28 can be appropriately changed in the vertical direction by removing the mounting and fixing means 30.

A slidable cylinder support bracket 32 is disposed at an intermediate portion in the axial direction of the two guide rail posts 22 and 24 along the axial direction. The cylinder support bracket 32 has a function as a cylinder support member that supports the cylinder 20, and includes, for example, a horizontally long rectangular support bracket main body 34 in FIGS. The support bracket body 34 has splittable portions 36 and 38 that can be separated on both sides in the longitudinal direction.

At the boundary between the support bracket body 34 and the splitter portions 36 and 38 on both sides thereof, the support bracket body 3 extends along the axial direction of the two guide rail posts 22 and 24.
For example, fitting / supporting portions 40 and 42 having a circular cross-section for movably mounting 4 are formed. In this case, when the support bracket main body 34 and the splitter portions 36 and 38 are combined, the fitting / supporting with a circular cross section is provided at the opposing portions of the support bracket main body 34 and the splitter portions 36 and 38 on both sides. Parts 40, 4
2 are formed.

The guide rail post 22 is sandwiched between the cylinder support bracket 32 and one splitter 36, and the guide rail post 24 is sandwiched between the cylinder support bracket 32 and the other splitter 38. . Then, the cylinder support bracket 32 and the two splitters 36 and 38 are tightened by fastening means 48 such as bolts, so that the cylinder support bracket 32 is moved along the axial direction of the two guide rail posts 22 and 24. Can be mounted vertically.

The support bracket body 34 of the cylinder support bracket 32 has a locking / supporting hole 50 for locking / supporting the cylinder 20 at the center in the longitudinal direction. The locking / support hole 50 is provided in the support bracket body 3.
4 is formed by a circular hole, for example.

On the other hand, in this embodiment, the cylinder 20 has a neck portion 21 on the outer periphery of the cylinder body 20A. The neck portion 21 is formed, for example, by providing a flange having an outer shape larger than the diameter of the hole forming the locking / supporting hole 50 on a part of the cylinder body 20A.

The cylinder 20 is inserted into the locking / supporting hole 50 of the cylinder support bracket 32 from above, and the neck 2
One portion is supported by being locked by the locking / supporting hole 50. That is, in this embodiment, the cylinder 20 is easily detached from the cylinder support bracket 32 by adopting the above-described locking / supporting structure without fastening / fixing the cylinder 20 to the cylinder support bracket 32 with a mechanical element or the like. It becomes possible.

The piston rod 20 of the cylinder 20
B is provided with, for example, a cylindrical rod cap 20C at its tip. This rod cap 20C is
By changing the axial length, the axial length of the piston rod 20B can be appropriately adjusted according to the length.

The wash basin 10 further includes other support means for supporting the wash basin body 12 so as to be capable of reciprocating linear movement in the vertical direction. Other support means are provided for supporting the support function of the basin body 12 of the cylinder 20.
Are displaceably and supplementarily supported along the axial direction of the two guide rail posts 22 and 24. The other support means includes, for example, two guide roller portions 52 and 54, as shown in FIGS. The two guide roller portions 52 and 54 are arranged on the back side of the sink main body 12 at predetermined intervals in the longitudinal direction thereof. The two guide roller portions 52 and 54 are connected by the horizontal rail 55 to the washstand main body 1.
2 is supported on the back side.

Since the two guide roller portions 52 and 54 have substantially the same structure, one of the guide roller portions 52 will be described in detail. That is, the guide roller portion 52
Includes, for example, a roller support 56. Roller support 5
6 is, for example, 2
It includes two bracket plates 58a, 58b. The two bracket plates 58a and 58b are disposed on one side in the longitudinal direction on the back side of the washbasin ball receiving pedestal 16. A front guide roller 60a and a rear guide roller 60b are rotatably arranged between the upper and lower ends of the two bracket plates 58a and 58b.

The front guide roller 60a and the rear guide roller 60b are arranged symmetrically with respect to the axis of the guide rail post 22 so as to abut on the front side and the back side of the guide rail post 22 so as to be rollable. The front guide roller 60a and the rear guide roller 60b are disposed between the bracket plates 58a and 58b so as to be rotatable by guide roller shafts 62a and 62b, respectively.

On the back side of the basin main body 12, for example, a backing plate 64 having a rectangular shape in a plan view is provided. The backing plate portion 64 is disposed at the center in the longitudinal direction on the back side of the washbasin pedestal 16 by holding brackets 66 and 68 disposed at one end and the other end in the length direction. Further, a hook portion 70 is provided on the upper surface of the backing plate portion 64, and another hook portion 72 is provided above the hook portion 70 on the lower surface of the upper bracket 26. Another hook part 72
Is disposed at the center in the longitudinal direction of the upper bracket, and is disposed on the same axis as the hook 70 of the backing plate 64. As shown in FIG. 1, FIG. 16, FIG. 20, etc., a hanging tool 74 such as a chain is appropriately provided between the hook 70 and another hook 72.

The contact plate portion 64 is operated by the cylinder 20.
When the piston rod 20B reciprocates, it is pressed and supported by the rod cap 20C. When the cylinder 20 is actuated and the piston rod 20B is raised, the contact plate 64 is pushed up by the rod cap 20C,
The sink main body 12 rises. And the piston rod 2
When 0B falls, the sink main body 12 pushes down the piston rod 20B with its own weight and descends.

That is, the cylinder 20 is attached to the sink main body 1.
2 along the axial direction of the guide rail posts 22 and 24,
Has a function as an operating means for operating reciprocally,
In addition, it also functions as a supporting means for supporting the wash basin main body 12 so as to be capable of reciprocating displacement. Further, the sink main body 12 is guided and supported not only by the cylinder 20 but also by the guide rollers 52 and 54. Therefore, the sink main body 12 is supported in a more stable state without bending.

In this case, the two guide roller portions 52, 5
4 has a function of an auxiliary supporting means for cooperating with the piston rod 20B of the cylinder 20 to auxiliaryly support the wash basin main body 12 so as to be displaceable along the axial direction of the guide rail posts 22, 24. Things.

The two guide roller portions 52, 54
Since the front guide rollers 60a and 60b are arranged at positions symmetrical to the axis of the guide rail posts 22 and 24, the load on the washbasin ball receiver 16 itself is reduced by the downward load on the front side of the washstand main body 12. It also has a function to prevent inconvenience caused by movement.

Next, the switch means for operating the cylinder 20 will be described with reference to FIGS. 3, 4, 5, 6, 7, 8 and 11. The switch means includes a directional control valve 80 for controlling start and stop of the cylinder 20, as shown in FIGS. 3, 6, 7, and 8, for example. The directional control valve 80 includes an A port 82, a P port 84, and an R port 86. A port 82
In the cylinder tube chamber 20a of the cylinder body 20A,
The connection is made via a pipe 88. Tap water can flow into the P port 84 via the pipe 90. R port 86
Is connected to a drain pipe 92. In the present embodiment, as an example of the direction control valve 80, for example, a three-way valve having ports of an A port 82, a P port 84, and an R port 86 is used.

In this embodiment, a check valve 94 is incorporated in the direction control valve 80. The check valve 94 is operated when the operating water is A
When communicated between port 82 and R port 86,
It has a function of preventing the backflow of the working water to the P port 84. The check valve 94 is, for example, a spherical valve body 94a.
And the valve element 94a is constantly pressed and urged by the valve spring 95 in the direction of closing the flow path of the working water.

Further, the directional control valve 80 has its valve stem 9
6 and 98, a switching lever 100 for switching the neutral position of the directional control valve 80 is provided. The switching lever 100 includes, for example, a rectangular plate-shaped lever main body 102 connected to the valve stem 96 and the valve stem 98. The lever body 102 has a valve stem 96 on the P port 84 side connected to one side in the longitudinal direction, and an R port 8 on the other side in the longitudinal direction.
The sixth stem 98 is connected. A central portion in the longitudinal direction of the lever main body 102 is rotatably supported by the shaft portion 104 on the housing portion 80A of the directional control valve. An operating arm 106 is formed on the lever main body 102 at a substantially central portion in the longitudinal direction and is connected at a substantially right angle.

Further, the valve stem 96 and R
The valve rod 98 on the port 86 side is always pressed and urged by valve springs 97 and 99 in the direction of closing the flow path of the working water. Therefore, the valve bodies 96a and 98a disposed on the axially distal ends of the valve stem 96 and the valve stem 98 respectively block the flow path of the working water.

In the operating state of the directional control valve 80 shown in FIGS. 8 and 9, it is assumed that the valve body 94a of the check valve 94 and the valve bodies 96a and 98a of the directional control valve 80 respectively block the flow path of the working water. Has become. For this reason, even if a load is applied to the piston rod 20B of the cylinder 20, both the A port 82 and the R port 86 are closed and locked. Therefore, even if a load is applied to the sink body 12, the piston rod 20B of the cylinder 20 does not change its position. In this case, for example, when water is cut off, the P port 84
This lock state, that is, the neutral position of the direction control valve 80 is maintained even when the working water does not flow into the directional control valve 80.

In this embodiment, in particular, the cover part 18 which is a part of the wash basin main body 12 rotates about the pivot part 13 as a fulcrum,
When displaced, the operating arm 106 of the switching lever 100
Operates. In this case, when a force acts on the cover 18 from outside the wash basin main body 12 so that the pivot 13 rotates, the operating arm 106 operates.

That is, in this embodiment, in particular, as shown in FIGS. 3, 6, and 7, for example, the directional control valve 80 is disposed on the back side of the washbasin ball pedestal 16. Direction control valve 8
Reference numeral 0 is attached to the back side of the washbasin ball pedestal 16 by, for example, an attachment bracket 108 having an L-shaped cross section. In this case, the mounting bracket 108 has its long side 108a
Is mounted on the back side of the washbasin ball pedestal 16, and its short side 108b is mounted on the housing 80A of the directional control valve 80. Long side 108a of mounting bracket 108
Each of the short sides 108b is attached by attaching means 110 such as a bolt.

A contact member 112 for operating the operation arm 106 of the switching lever 100 is provided on the bottom surface 18a of the cover portion 18 near the rear side. Contact member 1
12 includes a rectangular base portion 114. Base part 11
4 has, for example, a U-shaped notch 11 in a part thereof.
8 is formed. Notch 118
The operating arm 106 of the switching lever 100 is arranged inside the inside of the notch at a predetermined distance from the peripheral edge 116a of the notch 112. This arrangement is such that the directional control valve 80 is in the neutral position.

When the cover 18 rotates about the pivot 13 from the neutral position, the contact portion 116 also moves with the rotation of the cover 18. At this time, the operating arm 106 of the switching lever 100 is
Swings clockwise or counterclockwise around the shaft 104 as a fulcrum. In the present embodiment, for example, a spherical crown-shaped operating contact piece 107 is formed at the longitudinal end of the operating arm 106, and the operating contact piece 107 comes into contact with the peripheral edge 116 a of the notch 112. .

On the other hand, the operation arm 106 of the switching lever 100 holds the directional control valve 80 in the neutral position on the front side of the sink body 12, as shown in FIGS. 3 and 5, for example. Holding means 120 is disposed.
In this case, the holding means 120 also supports the weight for operating the switching lever 100 by a slight rotational movement of the cover 18.

That is, the holding means 120 includes, for example, a spring 122 as an urging means. One end of the spring 122 is locked to the front side 18 b of the cover 18, and the other end is locked to the front side 16 a of the washbasin ball receiver 16. In this case, a locking piece 124 for locking one end of the spring 122 is provided on the front side 18 b of the cover 18. The locking piece 124 is provided at a predetermined position on the inner surface of the front side 18 b of the cover 18 by, for example, attaching a bolt. In addition, the front side 16 of the washbasin ball receiver 16 is provided.
Another locking piece 126 for locking the other end of the spring 122 is disposed on the outer surface of the spring a. The locking piece 126 is provided at a predetermined position on the outer surface of the front surface 16a of the washbasin ball receiver 16 by, for example, attaching a bolt.

The spring 122 has hook portions 122a and 122b at one end and the other end, respectively. One hook portion 122a is locked to a bolt shaft portion 124a which is one locking piece 124, and the other hook portion 122a is locked.
b is a shaft part 126a of a bolt which is the other locking piece 126.
Is locked. Therefore, in the wash basin 10 of this embodiment, the wash basin cradle 16 and the cover 1 are always in use.
8 is held by the action of the spring 122 so that the operating arm 106 of the switching lever 100 is in a neutral position where no action is performed.

Further, on the outer surface of the front side 18b of the cover part 18, an operation part 128 composed of, for example, a convex part is provided. The operation unit 128 is formed, for example, in a substantially U-shaped cross section, as shown in FIG. As shown in FIG. 1, the operation unit 128 is provided to extend from one longitudinal end of the outer surface of the front surface 18 b of the cover 18 to the other end thereof. In this embodiment, the cover portion 18 is displaced around the pivot 13 as a fulcrum by simply applying a force to the operation portion 128 of the cover portion 18 which is a part of the wash basin main body 12, and the cover portion 18 is moved in conjunction therewith. The operation arm 106 of the switching lever 100 can be displaced. In this case, it is only necessary to press the operation unit 128 downward or upward. Therefore, the user of the wash basin 10 of the present embodiment can easily operate the wash basin 10 simply by raising or lowering the operation unit 128 of the cover unit 18. Therefore, even the elderly, the physically handicapped, and the children are extremely easy to use.

Next, the operation of the wash basin 10 according to the present embodiment will be described mainly with reference to FIGS. 1, 3, 5, 6 and 7 and FIGS. Hereinafter, the ascent and descent operations of the sink body 12 will be mainly described. Note that the initial state of the wash basin 10 is a state in which the wash basin main body 12 is stopped, that is, a state in which the switch means described above is not operated and the switching lever 100 that controls the direction control valve 80 is in the neutral position. Has become.

Now, from the above-mentioned initial state, the sink main body 12 will be described.
The operation unit 1 disposed on the front surface of the cover unit 18 of the sink 12 shown in FIGS.
When the cover 28 is pushed up, the front side of the cover 18 rotates upward about the pivot 13. In conjunction with this, as shown in FIG. 10, for example, as shown in FIG.
Rotate clockwise.

At this time, the valve stem 96 on the P port 84 side is
Against the urging force of the valve spring 97, the valve body 96a
6b. Therefore, the operating water flows from the pipe 90 to the P port 84, the passages 130, 132,
134, 136. The operating water introduced into the passage 136 separates the valve body 94a from the valve seat 94b against the urging force of the valve spring 95 of the check valve 94. Therefore, the working water is supplied to the passage 136, the A port 82,
8 through the cylinder tube chamber 20a of the cylinder 20.
Is discharged to Therefore, the piston rod 20B of the cylinder 20 is displaced upward, and the rod cap 20C pushes up the contact plate portion 64 of the washbasin ball receiver 16. As a result, the wash basin body 12 rises to a predetermined height. The rising speed can be adjusted by adjusting the amount of the working water, the flow velocity, and the like, for example, by adjusting the opening of a tap water faucet. When the operation of the operation unit 128 is stopped, the cover unit 18 is stopped.
Is returned to the original initial state by the urging force of the spring 122.
Therefore, the switching lever 100 that controls the direction control valve 80
Is also held at the neutral position, and the sink main body 12 stops at a predetermined position.

In order to lower the wash basin body 12 in the above-mentioned initial state or in a stopped state at a predetermined position, the operating portion 128 is pressed down, so that the front side of the cover portion 18 causes the pivot portion 13 to move. Rotate down to the fulcrum.
In conjunction therewith, for example, as shown in FIG. 11, the operating arm 106 of the switching lever 100 rotates counterclockwise as shown in FIG.

At this time, the valve stem 98 on the R port 86 side is
Against the urging force of the valve spring 99, the valve body 98a is
8b. Therefore, the working water is introduced into the A port 82 from the cylinder tube chamber 20 a of the cylinder 20 via the pipe 88. In this case, since the valve element 94a of the check valve 94 is seated on the valve seat 94b, the flow of the working water into the passage 136 is shut off.
Therefore, the working water is drained from the drain pipe 92 through the passages 138, 140, 142 and the R port 86.
Therefore, the piston rod 20B of the cylinder 20 is displaced downward. At this time, the sink main body 12 pushes down the rod cap 20C by its own weight, and as a result, the sink main body 12 descends to a predetermined height. The descending speed can be adjusted by adjusting the discharge flow rate and the discharge flow rate drained from the R port 86 through the discharge pipe 92. When the operation of the operation unit 128 is stopped, the cover unit 18 returns to the original initial state by the urging force of the spring 122. Therefore, the switching lever 100 that controls the direction control valve 80 is also held at the neutral position, and the sink main body 12 stops at a predetermined position.

In this embodiment, for example, tap water having a predetermined pressure is used as a driving source, so that no electric power is required. Therefore, there is no risk of electric shock and leakage,
Moreover, there is no influence of electromagnetic waves. In addition, since no hydraulic pressure is used, there is no danger against fire measures or fire. Therefore, the wash basin 10 of the present embodiment is extremely excellent in safety. Since the wash basin 10 of this embodiment does not require an electric motor or a speed reducer, the initial cost of the apparatus can be reduced. In addition, since no special power source is required, the size of the apparatus can be easily reduced, and the space for installing the drive source can be reduced. Further, since there is no noise source such as a pneumatic device, the device is very quiet. And since the working fluid is tap water, it is clean. In addition, wash basin 10
Is only required to operate the operation section 182 for operating the switching lever 100, and the operation is very simple. Therefore, the sink 10 of the present embodiment is
It is extremely easy to use.

The tap water, which is a working fluid, is used as toilet flush water, bath water, miscellaneous water, and the like. If a system for reusing the tap water is incorporated, the running cost required for the wash basin 10 is reduced, and cost performance is reduced. Will be better.

Further, in this embodiment, an operation section 128 for operating the switching lever 100 for operating the cylinder 20 is formed in a part of the cover section 18 of the wash basin main body 12, and is provided on the front side of the cover section 18 from outside. When a force is applied, the wash basin main body 12 moves up and down. Therefore, in the wash basin 10 according to the present embodiment, even when the wash basin main body 12 falls on the knee or the like due to an incorrect operation by the wheelchair user, the wash basin main body 12 contacts the knee or the like. The base body 12 retreats from a contact object such as a knee, and stops in that state. Therefore, it is possible to prevent the weight and the like of the water and the like in the wash basin body 12 and the wash basin from being pressed against the knees and the like to prevent an injury.

More specifically, as shown in FIGS. 12 and 13, for example, when the cover portion 18 of the sink 12 comes into contact with the knee 200, the bottom surface 18a of the cover portion 18 bends. A repulsive force is generated at 18.
Due to this repulsive force, the front side of the cover portion 18 pivots and displaces upward with the pivot portion 13 as a fulcrum. Therefore, the operation arm 106 of the switching lever 100 operates, and the cylinder 20 operates. Therefore, the sink body 12
Rises up and away from the knee 200 as shown in FIG. Then, when the operation arm 106 of the switching lever 100 is in the neutral state, as shown in FIG. 15, the washstand main body 12 stops at that position. The amount of displacement due to the bending of the cover 18 is very small, and the above-described series of operations is performed instantaneously.

In the wash basin 10 according to the present embodiment,
For example, as shown in FIG. 16, the mounting position of the cylinder support bracket 32 can be adjusted up and down so as to be movable by, for example, about 270 mm, so that even after the wash basin 10 is mounted at a predetermined position on the wall surface W, the vertical movement of the wash basin body 12 can be performed. The range can be appropriately changed within a predetermined range.

In this case, the vertical movement range of the sink body 12 is as follows.
The stroke is defined by the stroke of the piston rod 20B of the cylinder 20 (for example, about 250 mm in the present embodiment), but the fastening means 48 such as bolts of the cylinder support bracket 32 (see FIGS. 32 can be moved up and down within a predetermined range (for example, about 270 mm in this embodiment).

Therefore, as shown in FIG. 16, the washstand body 12 is hung by a hanging tool 74 such as a chain, so that even after the guide rail posts 22 and 24 are arranged at predetermined locations, that is, the washbasin as a whole. Even after the installation of the wash basin 12, the reference position of the elevation range of the wash basin main body 12 can be appropriately changed within a predetermined range. That is, by adjusting the effective range of the stroke of the piston rod 20 </ b> B of the cylinder 20, the effective ascending / descending range of the wash basin main body 12 can be adjusted.

Further, the rod cap 2 of the cylinder 20
By appropriately changing the axial length of 0C, the reference position of the stroke of the piston rod 20B of the cylinder 20 can be easily set within the range of the axial length of the rod cap 20C without moving the cylinder support bracket 32. so,
It can be adjusted and changed as appropriate.

For this reason, in the wash basin 10 according to the present embodiment, even when the optimum range of ascending and descending of the user changes due to, for example, the growth of a child or the aging of a family, for example, FIGS. As shown, it can be easily accommodated. In addition, in this case, when mounting the washstand 12 on the wall surface W again, the necessity of opening a large number of mounting holes (not shown) in the wall surface W is extremely reduced, so that a large number of mounting holes (not shown) are formed in the wall surface W. No scars are left.

Further, in the wash basin 10 according to the present embodiment, as shown in FIG. 20, for example, the splitters 36 and 38 of the cylinder support bracket 32 are connected to the support bracket body 34.
, The cylinder 20 can be very easily removed from the cylinder support bracket 32. When removing the cylinder 20 from the cylinder support bracket 32,
First, the cylinder 20 is moved to the upper limit position, and the sink main body 12 is hung by a hanger 74 such as a chain. Next, the fastening means 48 such as bolts between the cylinder support bracket 32 and the splitters 36, 38 is loosened, and the cylinder support bracket 32 is moved downward along the guide rail posts 22, 24. Thereafter, the cylinder 20 is pulled out of the fitting / support portions 40 and 42 of the cylinder support bracket 32.

Accordingly, the cylinder 20 can be easily removed and replaced. Therefore, maintenance of the cylinder 20 itself can be easily performed, consumables such as packings can be easily replaced, and as a result, the running cost of the cylinder 20 can be suppressed.

In the above-described embodiment, the operating arm 106 of the switching lever 100 is provided to extend in the vertical direction. However, the switching lever 100 is not limited to this. For example, as shown in FIG. The switching lever 100 may be arranged so that the arm 106 extends in the horizontal direction.

In the above embodiment, the cylinder 2
By changing the stroke of 0 and the diameter of the piston,
The range of elevating the wash basin body 12 can be increased, and the size of the wash basin body 12 can be appropriately adjusted. Further, in the above-described embodiment, for example, tap water is used as the working water having the predetermined pressure. However, the working water is not limited to the tap water. Any pressure water may be used, and in that case, the same operation and effect as in the present embodiment can be obtained.

[0062]

According to the present invention, an economical wash basin that is excellent in safety, quiet, and easy to use for anyone can be obtained.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an example of a sink according to the present invention.

FIG. 2 is a perspective view of main parts when the wash basin of the embodiment shown in FIG. 1 is viewed from the back side.

FIG. 3 is an illustrative view showing main parts when the wash basin of the embodiment shown in FIG. 1 is viewed from the side.

FIG. 4 is an exploded side elevational view of an essential part of FIG. 3;

FIG. 5 is an enlarged side elevational view showing a main part on the front side of the sink of the embodiment shown in FIG. 1;

FIG. 6 is an enlarged side elevational view showing a main part on the back side of the sink of the embodiment shown in FIG. 1;

FIG. 7 is a perspective view of main parts when the wash basin of the embodiment shown in FIG. 1 is viewed from the back side.

FIG. 8 is an illustrative view showing main parts of an example of a drive mechanism for moving up and down the wash basin of the embodiment shown in FIG. 1;

FIG. 9 is an enlarged illustrative view showing a main part of the drive mechanism shown in FIG. 8 and an operation state thereof (wash-basin stop state).

FIG. 10 is an enlarged illustrative view showing a main part of the drive mechanism shown in FIG. 8 and another operation state (wash-basin raised state).

FIG. 11 is an enlarged illustrative view showing a main part of the drive mechanism shown in FIG. 8 and still another operation state (wash-basin lowered state).

FIG. 12 is a side elevational view of an essential part showing an example of safety in the sink of the embodiment shown in FIG. 1;

FIG. 13 is an enlarged side elevational view showing a relevant part of the wash basin in FIG. 12 in an operating state.

FIG. 14 is an enlarged side elevational view showing a relevant part of the sink in FIG. 12 in another operating state.

FIG. 15 is an enlarged side elevational view showing a relevant part of the basin in FIG. 12 in still another operating state.

FIG. 16 is a perspective view showing an example of a changing means for changing a mounting position of a cylinder applied to the wash basin of the embodiment shown in FIG. 1;

17 is a side elevational view of a relevant part showing a state where the cylinder is set at a predetermined position by the changing means shown in FIG. 16;

FIG. 18 is an illustrative side view of a relevant part showing a state where the cylinder is set at another predetermined position by the changing means shown in FIG. 16;

19 is a side elevational view of a relevant part showing a state where the cylinder is set at another predetermined position by the changing means shown in FIG. 16;

20 is a perspective view of a main part showing a state where a cylinder applied to the wash basin of the embodiment shown in FIG. 1 has been appropriately removed.

FIG. 21 is an illustrative view showing main parts of a modified example of a drive mechanism for raising and lowering the sink shown in FIG. 8;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Washstand 12 Washstand main body 13 Axis part 14 Washing ball 16 Washing ball receiving stand 18 Cover part 20 Actuator (cylinder) 22, 24 Guide rail post 32 Cylinder support bracket 34 Support bracket main body 36, 38 Splitter part 48 Fastening means 52 , 54 guide roller section 80 direction control valve 94 check valve 100 switching lever 106 operating arm 120 holding means 122 spring 128 operating section

Claims (7)

[Claims] 1. A wash basin operable up and down by an actuator that uses working water such as tap water having a predetermined pressure as a medium for power transmission, wherein a switch means for operating the actuator comprises: the wash basin main body. A wash basin, wherein the wash basin is activated when a force acts on the wash basin body from outside. 2. The wash basin according to claim 1, wherein the actuator is also used as support means for supporting the wash basin main body so as to be capable of reciprocating reciprocation in a vertical direction, and includes a cylinder operated by the operating water. 3. The support means further includes a guide rail post extending in a vertical direction, and a cylinder support member for supporting the cylinder, wherein the cylinder support member is movable in an axial direction of the guide rail post. The wash basin according to claim 2, wherein the wash basin is arranged so that a reference position of a stroke range of a piston rod of the cylinder can be appropriately changed. 4. Another support that includes a guide roller that can roll along the axial direction of the guide rail post, and that additionally supports the wash basin body displaceably along the axial direction of the guide rail post. The sink according to claim 2 or 3, further comprising means. 5. The wash basin includes a wash basin main body, wherein the wash basin main body is provided with a wash basin, a wash basin ball receiving pedestal disposed on the other supporting means, for holding the wash basin, and a pivot. A cover portion rotatably connected to the washbasin ball cradle, the cover portion covering the washbasin ball and the washbasin ball cradle, and the displacement of the cover portion due to the rotation of the pivot portion;
The sink according to any one of claims 1 to 4, wherein the switch means is operated. 6. The directional control valve includes an A port, a P port, and an R port, and controls the start and stop of the actuator. The A port and the R port of the directional control valve communicate with each other. A check valve for preventing backflow of the working water to the P port, a switching lever connected to a valve stem of the directional control valve for switching a neutral position of the directional control valve, and a neutral position of the directional control valve. Including a holding means for holding the cover portion so as to hold a position, the direction control valve is supported on the washbasin ball cradle side, and the cover portion is displaced, in conjunction therewith, The washstand according to claim 5, wherein the switching lever is switched. 7. The holding means includes a biasing means for constantly biasing the cover so as to hold a neutral position of the directional control valve, wherein one end of the biasing means is an end of the cover. Part,
The washstand according to claim 6, wherein the other end of the urging means is locked to an end of the washbasin.