JP2000303530A - Automatic draining device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily and safely perform opening/closing operation of a drain valve by providing a motive power transmitting means between a manual button and an operation wire for transmitting motive power to the drain valve. SOLUTION: An automatic draining device A composed of an operation part 11 for freely opening/closing a drain valve 10 of a bathtub 9, a lock mechanism 12 for holding a cock opening state of the drain valve 10 and an operation wire 13 for driving/connecting the operation part 11 and the lock mechanism 12, is installed on the uppermost edge 9a of a rim part of the bathtub 9. An interlocking part for converting rotary motion of an output shaft 27 for outputting rotation of an electric motor 22 via a speed reduction mechanism into vertical motion of an operation shaft 20, is installed in a joining part of the operation shaft 20 and a connecting shaft 26 connected to a manual button 19. When driving the electric motor 22 in a cock closing state where the manual button 19 is positioned on the uppermost edge 9a of the rim part, the output shaft 27 rotates to push-move the operation wire 13 futher downward. Thus, the drain valve 10 moves upward to be put in a cock opening state.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in an automatic drainage device capable of quickly and reliably opening and closing a drainage plug attached to a bottom of a bathtub or a sink.

[0002]

2. Description of the Related Art Conventionally, when a drain port opened in a bathtub or a basin is opened or closed by a drain plug, the drain plug is inserted into the drain port by operating a chain connected to the drain plug. Is generally well known. When opening and closing the drain port of the bathtub or wash basin as described above, the user grasps the chain connected to the drain plug and operates it to pull out the drain plug to the drain port, especially drainage When closing the mouth, it is very troublesome and inconvenient to insert the drain cock horizontally without forming a gap with the drain outlet.

[0003] The chain connected to the drain plug is
To make it easy for the user to open and close the drain cock by picking it up,
Since the drain plug is connected to the drain plug with a certain amount of slack (slack), when a user takes a bath, he or she accidentally hooks his / her hand or foot on the chain and pulls the drain plug out of the drain port or tilts it (drain plug). And a drain is formed between the outlet and the drain), thereby causing a problem of inducing water leakage from the drain.

In such a case, the user usually tries to close the drain port quickly with a drain plug in order to prevent water leakage from the bathtub. However, the drain plug is filled with hot water in the bathtub or wash basin. When fitting the drain plug into the drain port, it is very difficult to fit the drain plug horizontally without tilting the drain plug due to the water force of the water drained from the drain port and the water pressure applied to the drain plug. Could not be plugged.

[0005] Further, when draining hot water in a bathtub, when the amount of hot water is large, the user pulls a chain connected to the draincock by immersing his hand in the remaining hot water in the bathtub and pulling the draincock. Although it is necessary to open the plug, immersing hands in the remaining hot water after a large number of people have used it is very difficult for the operator. Further, the chain suspended in the bathtub has various problems such as a cleaning tool or the like being caught by the cleaning tool when cleaning the inside of the bathtub. For this reason, in recent years, there has been a demand for a drainage device that can be freely opened and closed from the outside without operating the drainage plug with a chain.

In view of the above problems, a drainage device for opening and closing a drainage plug from outside has been proposed, for example, as shown in FIG. The drainage device shown in FIG.
A drain pipe 3 is provided in communication with a drain port 2 opened on the bottom of
In the drain pipe 3, a support shaft 5 having a drain plug 4 fixed to the upper end is accommodated, while a manual button 6 for manual operation protrudes from a rim uppermost edge 1 a of the bathtub 1. 7
The operating shaft 7 and the support shaft 5 are connected by a connecting rod 8 that rotates around a pivot 8a.

When the drain button 4 is opened and closed, when the manual button 6 is pushed down to the position shown by the two-dot chain line, the drain valve 4 rises to the position also shown by the two-dot chain line and the drain port 2 is opened. Open, and conversely, the manual button 6 is
When manually pulled up to the position shown by the solid line, the drain plug 4 is lowered to the position shown by the solid line, and the drain port 2 is closed.

[0008]

The drainage device shown in FIG. 15 drains the drainage port 2 opened on the bottom surface of the bathtub 1 by pushing and pulling a manual button 6 protruding from the uppermost edge 1a of the rim of the bathtub 1. It can be easily opened and closed by the tap 4, especially when the drain port 2 is closed by the drain plug 4, the drain plug 4 is not fitted to the drain port 2 at an angle, and a manual button is erroneously inserted at the time of bathing. Even when the drain plug 4 is opened by pressing the drain button 6, the drain button 6 is quickly and reliably inserted into the drain port 4 by immediately pulling up the manual button 6, and the inside of the bathtub 1 is removed. Hot water can be prevented from leaking from the drain port 4. Furthermore, when draining the remaining hot water in the bathtub 1 after bathing, it is not necessary to put a hand in the dirty remaining hot water,
Further, when cleaning the inside of the bathtub 1, the cleaning can be performed without being disturbed by a chain or the like, which is convenient.

However, in the drainage device shown in FIG. 15, when the drainage plug 4 which has been once opened is closed, the manual button 6 is used.
Is required to be pulled back once, the manual button 6 must be mounted so as to protrude above the uppermost edge 1a of the rim portion of the bathtub 1. However, when an infant or the like takes a bath, the hand or foot is mistakenly applied to the manual button 6. Considering that the player may fall and get hurt in the bathroom due to the hooking, there is a problem that the safety of the user is not always sufficiently ensured.

Further, since the manual button 6 is mounted so as to protrude from the uppermost edge 1a of the rim portion, there is a high possibility that an infant or the like pushes the manual button 6 by mischief.
There is also a problem that hot water in the bathtub 1 is erroneously drained by opening the drain plug 4.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and can easily open and close a drain cock.
The purpose is to provide drainage devices that ensure the safety of users.

[0012]

According to the present invention, there is provided an automatic drainage device, wherein a drainage tap is provided on a bottom surface of the bathtub, and an operation unit for opening and closing the drainage tap includes a manual button for performing a manual operation. The drain valve has an operation wire for transmitting power to the drain plug side by a pushing operation of the manual button, and the drain plug is provided with holding means for holding the opened state, and the manual button and the drain of the operation unit are provided. Power transmission means for reciprocating the operation wire is interposed between operation wires for transmitting power to the stopper.

[0013] The automatic drainage device according to the second aspect is the first aspect.
In the automatic drainage device described above, the power transmission means includes an operation shaft that presses the operation wire in conjunction with the depression of a manual button, and the operation shaft is cut in half at a predetermined length along its length direction. A notched surface formed as described above, an engaged member that slides up and down only in the vertical direction through the notched surface, and a laterally movable engagement groove formed in a side surface of the engaged member. An arm that is combined with the electric motor, an electric motor that rotationally drives the arm and presses the operation shaft via the engaged member, and a spring member that moves the pressed operation shaft up to a predetermined position.

According to a third aspect of the present invention, there is provided an automatic drainage device.
In the automatic drainage device described above, the operation shaft is configured to include a drop-out preventing member that moves up and down together with the operation shaft to prevent the operation shaft from dropping.

According to a fourth aspect of the present invention, in the automatic drainage device according to the second or third aspect, an engaging groove formed in a side surface of the engaged member is engaged with the engaging groove. And a length having a lateral dimension at least twice the axial center distance between the shaft and the output shaft.

According to a fifth aspect of the present invention, there is provided an automatic drainage device, comprising: a magnetic member that changes its position in conjunction with a position of a drain cock; operating means for instructing water supply or drainage; Providing switching means for opening operation,
Recognizing the open / closed state of the drain cock from the input / open state of the switching means, the drain cock is open, and when there is a water supply instruction from the operating means, and the drain cock is closed, and When there is a drain instruction from the operating means, a signal for driving the electric motor is output, and the drain plug is in an open state, and when there is a drain instruction from the operating means, and when the drain plug is in a closed state, the operating means And a control means for outputting a signal for not driving the electric motor when a water supply instruction is issued from the apparatus.

[0017] The automatic drainage device according to the sixth aspect is the fifth aspect.
In the automatic drainage device described above, the magnetic member is attached to a manual button.

The automatic drainage device according to claim 7 is the same as
In the automatic drainage device described above, the magnetic member is attached to the dropout prevention member.

[0019] The automatic drainage device according to the eighth aspect is the seventh aspect.
In the automatic drainage device described above, one end of the dropout prevention member is fixed to the operation shaft, a U-shaped notch is formed at the other end, and the output shaft of the electric motor is inserted through the notch.

According to the ninth aspect of the present invention, there is provided an automatic drainage device.
The automatic drainage device according to claim 1, further comprising an interlocking piece that fixes one end to the engaged member, and presses the dropout prevention member when the electric motor rotates the arm to press the engaged member. Configured.

The automatic drainage device of the present invention can be quickly and easily opened and closed by pushing a manual button whose top is parallel to the rim of the bathtub or by turning on a switch on an operation panel. Can be opened and closed. Further, since the manual button can be operated by turning on a switch or the like when opening and closing the drain cock, there is no need to mount the manual button protruding from the upper end of the bathtub rim as in the past, so that the hands and feet are not required at the time of bathing. No injuries from getting caught. Furthermore, since the operation wire for interlocking the operation unit including the manual button and the drain plug can be arranged and attached to the back of the bathtub, a chain or the like for hanging the drain plug in the bathtub is required. do not do. Therefore, there is no obstacle to bathing or cleaning, which is convenient.

[0022]

FIG. 1 is a block diagram showing an embodiment of the present invention.
This will be described with reference to FIG. FIG. 1 shows an example in which an automatic drainage device A of the present invention is implemented as a means for opening and closing a bathtub drain plug. The automatic drainage device A is attached to the uppermost edge 9a of a rim portion of a bathtub 9 to form a bathtub. An operation unit 11 for freely opening and closing a drain plug 10 provided on a bottom surface 9b of the unit 9
A lock mechanism 12 installed in a space below the bottom surface 9b of the bathtub 9 to hold the drain plug 10 in an open state, and a lengthwise direction for drivingly connecting the operation unit 11 and the lock mechanism 12. And a rigid operation wire 13.

Reference numeral 14 shown in FIG. 1 denotes an insertion tube provided for inserting and holding an operation wire 13 connecting the operation portion 11 and the lock mechanism 12 in the rim portion of the bathtub 9 and having an upper end. The drain pipe 1 is connected to a lower end (not shown) of the operation unit 11, and the lower end communicates with a drain port 15 of the bathtub 9.
6 is connected. The lock mechanism 12 constituting the automatic drainage device A is fixed to the lower side of the bottom surface 9b of the bathtub 9 in the drainage pipe 16 using fixing means such as a set screw. When the stopper 10 is opened, the stopper 10 is configured to maintain the opened state.

Next, the structure of the operation unit 11 will be described with reference to FIG. FIG. 2 shows a cutaway sectional view of a main part of the operation unit 11, and reference numeral 17 denotes a push button 1 for manual operation which is fitted into a fitting hole 18 formed in the uppermost edge 9a of a rim of the bathtub 9 and is provided on the inner peripheral side.
9 (hereinafter, referred to as a manual button) is a bottomed tubular guide tube in which the top thereof is vertically movable with its top parallel to the rim uppermost edge 9a. ,
The shaft through hole 17a through which the operation shaft 20 connected to the manual button 19 is inserted is opened.

A housing tube 21 is screwed to the guide tube 17 with the uppermost edge 9a of the rim portion of the bathtub 9 held between the guide tube 17 and a hooking piece 17b of the guide tube 17. On the side surface of the cylinder 21, a drive unit housing 23 housing the electric motor 22 is fastened and held by a fastening screw 24 as shown in FIG.

At the lower end narrow portion 21a of the housing cylinder 21,
A guide cylinder 25 comprising a disk part 25a at the upper end and a hollow cylindrical part 25b is attached, and a connection shaft 26 having an umbrella part 26a in the hollow part is attached to the guide cylinder 25 at the upper end. And is in contact with the lower end of the operation shaft 20.

A joint between the operating shaft 20 and the connecting shaft 26 is provided with an interlock for converting the rotational movement of the output shaft 27 for outputting the rotation of the electric motor 22 through a speed reduction mechanism into the vertical movement of the operating shaft 20. A part 28 is attached. Further, a covering member 29 having a threaded portion formed on the outer periphery of the upper end thereof is screwed into the lower end opening of the guide tube 25 in a state where the operation wire 13 is drawn into the guide tube 25. Is fixed to the tip of the umbrella portion 26a of the connecting shaft 26 by crimping at the hollow portion of the guide cylinder 25.

In the hollow portion of the guide cylinder 25, a spring member 30 is disposed on the covering member 29 by passing the operation wire 13 in the longitudinal direction.
Is formed to have a length such that a predetermined space is held between its upper end and the umbrella portion 26a of the connection shaft 26.

Reference numeral 31 shown in FIG. 2 denotes a magnetic member, such as a permanent magnet, provided on the manual button 19 and having a predetermined magnetic force. Reference numeral 32 denotes an overhanging portion 23a formed on the drive housing 23. The position detecting means (position detecting means of the drain plug 10) of the manual button 19, which is, for example, a reed switch or the like, which performs a switching operation in response to the magnetic force of the magnetic member 31.

Next, the structure of the interlocking unit 28 will be described with reference to FIG. FIG. 3A shows the interlocking section 28 as a Y-
FIG. 3 (a) shows an engaged member which is mounted to slide vertically along the operation shaft 20 for a predetermined distance. This engaged member 3
3 (side surface in the direction where the electric motor 22 in FIG. 2 is located)
The arm portion 34a of the engaging member 34 fitted to the tip of the output shaft 27 of the electric motor 22 (the engaging member 34 is a cylindrical arm portion 34a and a key projection 27 formed at the tip of the output shaft 27).
a, which is provided with a key groove 34c for fitting and fixing a, for example, is formed by an elliptical support portion 34b). As shown in FIG. 3), the width is formed to have a length twice or more as large as the distance between the center of the output shaft 27 of the electric motor 22 and the center of the arm 34 a (X in FIG. 3A). Have been.

FIG. 3 (b) shows that the interlocking section 28 is
FIG. 13 is a view as viewed from the direction of the arrow −Z ′. At the tip of the output shaft 27 of the electric motor 22, the elliptical support portion 34b constituting the base of the engagement member 34 outputs the key groove 34c as described above. Axis 2
7 is fitted and fixed to the key projection 27a of the
The arm portion 34a, which is vertically attached to the b, is slidably engaged in the lateral direction along the engagement groove 35 at a position where its tip does not contact the bottom surface 35a of the engagement groove 35 of the engaged member 33. I have.

The operating member 2 is attached to the engaged member 33.
0 notch surface 36a formed by cutting one side surface in half length
Although the engaged member 33 moves up and down with respect to the operation shaft 20 due to the presence of the notch surface 36a,
It prevents rotation. In addition to the cutout surface 36a, the cutout surface 36b is formed in the fastening portion with the manual button 19 shown in FIG. 2 to prevent the manual button 19 from rotating with respect to the operation shaft 20. Preventing. In the present invention, the operating shaft 20, the cutout surface 36a formed by cutting the operating shaft 20 in half, the interlocking portion 28 and the interlocking portion 2
A power transmission means is constituted by using an electric motor 22 for electrically driving the motor 8 and a spring member 30 for urging the pressed operation shaft 20 upward.

Next, a case where the operation section 11 is assembled will be described. When assembling the operation unit 11 shown in FIG. 2, first, the tube portion 25b of the guide tube 25 is fitted from above into the narrow portion 21a provided in the lower part of the storage tube 21, and
5 between the disk portion 25a and the narrow portion 21a.
Fix with. Thereafter, the operation wire 13 passing through the hole 29a of the covering member 29 is inserted through the spring member 30 and then crimp-fixed to the umbrella portion 26a of the connection shaft 26. Is made to enter the housing cylinder 21 from the lower end opening of the cylindrical portion 25b of the guide cylinder 25.

The cover member 29 is screwed onto the lower end opening of the cylindrical portion 25b of the guide tube 25, so that the spring member 30 is placed on the cover member 29 in the cylindrical portion 25b of the guide tube 25. Mounted in condition. Subsequently, the insertion hole 33a of the engaged member 33 is fitted into the upper end of the connecting shaft 26 that has entered the housing cylinder 21, and the arm of the engaging member 34 is inserted into the engaging groove 35 of the engaged member 33. The part 34a is engaged.

At this time, the support portion 34 of the engagement member 34
As shown in FIG. 3A, the output shaft 27
Of the output shaft 27 is fitted and fixed.
The other end of the O-ring 27
b, it protrudes outside from the insertion hole 38. The electric motor 22 is attached to the protruding end of the output shaft 27 so as to be interlocked, and the electric motor 22 is fastened and fixed to the side surface of the housing cylinder 21 by a fixing screw 39 so that the engaged member 33 is Output shaft 27 and engagement member 3
4 is supported.

Subsequently, a drive housing 23 for housing the motor 22 is abutted from the outside of the motor 22 mounted on the side surface of the housing cylinder 21 via a packing 24a, and in this state, as shown in FIG. The electric motor 22 is covered with a waterproof structure by being fixed to a mounting ear (not shown) of the housing cylinder 21 using the attached screw 24. Then, the container 21 is placed in the bathtub 9.
From the lower side of the fitting hole 18 formed in the uppermost edge 9a of the rim portion through a buffer packing 40, and
The guide tube 17 is screwed into a screw portion (not shown) formed on the upper portion of the housing tube 21 so that the housing tube 21 has a packing 40 for buffering on the uppermost edge 9a of the rim portion of the bathtub 9. Mounted via

When the mounting of the housing cylinder 21 to the bathtub 9 is completed, the manual button 19 with the operation shaft 20 fixed downward is fixed.
After the lower end of the operation shaft 20 passes through the shaft through hole 17a,
The insertion of the operation unit 11 shown in FIG. 2 is completed by fitting the upper end of the engaged member 33 through the insertion hole 33 a and fitting the inner end of the guide cylinder 17 so as to abut the upper end of the connection shaft 26. At this time, the notched surface 36a of the operation shaft 20 is provided in the engaged member 33.
The engaged member 33 is attached so as to be slidable in the vertical direction without rotating on the cutout surface 36a of the operation shaft 20. It is assumed that the magnetic member 31 and the position detecting means 32 are attached to the manual button 19 and the drive unit housing 23 in advance before the operation unit 11 is assembled.

Next, FIG. 5 shows the lock mechanism 12 of the drain plug 10.
In FIG. 5, reference numeral 41 denotes a main body tube which is loosely fitted in the drainage pipe 16 and is fixed to the bottom surface 9b of the bathtub 9 together with the drainage tube 16 by a set screw 42;
A plurality of guide pieces are formed in the circumferential direction along the axial direction of the inner wall surface. Reference numeral 44 denotes a shaft rod having one end fixed to the drain plug 10 and the other end loosely fitted into the main body tube 41 through the drain port 15, and 45 denotes a pushing hole formed by hollowing a lower portion of the shaft rod 44 in a hollow shape. The upper end of the push hole 45 is in contact with the distal end of the operation wire 13 inserted from the lower end opening of the main body cylinder 41.

Reference numeral 46 denotes a fastening ring fixed integrally to the lower periphery of the shaft 44, and 47 is attached to the shaft 44 above the fastening ring 46 so as to rotate and move up and down. It is a movable ring. Reference numerals 46a and 47a denote projecting pieces formed on the outer peripheral sides of the fastening ring 46 and the movable ring 47, respectively, and fitted and held by the guide pieces 43.
Reference numeral 7b denotes saw-toothed teeth formed at the upper end of the fastening ring 46 and the lower end of the movable ring 47, respectively. Reference numeral 43b is a saw-toothed tooth formed at the upper end of the guide piece 43.

Numeral 48 denotes a flange piece protruding from the center of the shaft 44 (near the upper part of the movable ring 47). The drain plug 10 is opened between the flange piece 48 and the bottom surface 9b of the bathtub 9. Then, the lock mechanism 12 is configured by interposing a spring member 49 that urges the lock mechanism in the closing direction.

Next, the operation of opening the drain plug 10 by the automatic drain device A by electric or manual operation will be described. First, when the drain plug 10 is electrically operated to open, the operation unit 11 of the automatic drainage device A is operated as shown in FIG.
In other words, when the manual button 19 is located at the uppermost edge 9a of the rim, the drain plug 10 on the bottom surface 9b of the bathtub 9 is in a closed state as shown in FIG. In this state, when the electric motor 22 of the operation unit 11 shown in FIG. 2 is driven,
The electric motor 22 slowly rotates the output shaft 27 via a reduction mechanism including a reduction gear (not shown) housed therein.

By the rotation of the output shaft 27, the engagement member 34 fitted to the tip of the output shaft 27 rotates its arm portion 34a about the axis of the output shaft 27.
In the engagement groove 35 of the engaged member 33 shown in FIG. And the arm portion 34a
3A moves to the right in FIG. 3A in the engagement groove 35, and the engaged member 33 moves to the notch surface 36a of the operation shaft 20 shown in FIG. Descend along,
As shown in FIGS. 2 and 6, a projection 33b provided at the top of the insertion hole 33a of the engaged member 33 through which the cutout surface 36a is inserted.
Abuts on the head 26b of the connecting shaft 26 and pushes down the connecting shaft 26 (see FIG. 6).

As a result, the connecting shaft 26 descends a predetermined distance (the space between the umbrella portion 26a of the connecting shaft 26 and the spring member 30) and then abuts against the spring member 30 to resist the urging force of the spring member 30. Then, the operation wire 13 is pushed downward.

When the operating wire 13 is pushed downward by the connecting shaft 26, the operating wire 13 passes through the insertion tube 14 provided in the rim portion of the bathtub 9 to move the shaft rod 44 of the lock mechanism 12 shown in FIG. Push up against the urging force of 49. As a result, the drain plug 10 moves up to the position indicated by the two-dot chain line shown in FIG. 7. In the process of pushing up the shaft rod 44, the fastening ring 46 fixed thereto is fitted with the saw-toothed meshing teeth. 46b comes into contact with the meshing teeth 47b of the movable ring 47, and the projections 46a, 47
Since a is fitted into the guide piece 43 formed on the inner wall of the main body cylinder 41, it is pushed upward together with the shaft rod 44 without rotating.

When the shaft 44 and the drain plug 10 move upward to the position shown by the two-dot chain line in FIG.
7a is released from the guide piece 43 and becomes rotatable, slides down on the meshing teeth 46b of the fastening ring 46, and rotates by a small angle around the shaft rod 44. On the other hand, when the output shaft 27 shown in FIG. 6 makes one rotation, the arm portion 34a of the engagement member 34 fitted to the output shaft 27 comes into contact with the upper surface of the engagement groove 35 shown in FIG. The engaging member 33 is moved upward to a position shown in FIG. 8, that is, a position near the lower surface of the engaged member 33 coincides with the head 26b of the connecting shaft 26.

As a result, the connecting shaft 26 is released from contact with the projection 33b of the engaged member 33 and is not pushed downward, so that the spring member 30 which is in contact with the umbrella portion 26a is pressed. The operation wire 13 is moved upward by the urging force, and the pressing operation of the operation wire 13 is completed. When the pressing operation of the operation wire 13 is completed, the drain plug 10 and the shaft 44 shown in FIG. 7 descend by their own weight and the urging force of the spring member 49.

When the drain plug 10 and the shaft 44 are lowered from the position indicated by the two-dot chain line in FIG. 7 to the position indicated by the solid line, the movable ring 47 rotated by a small angle with respect to the shaft 44.
Tooth 43b formed on the guide piece 43
As a result of being engaged upward, even if the shaft 44 is going to descend further, the flange piece 48 protruding from the shaft 44 at the upper end of the movable ring 47.
Is received, the shaft rod 44 and the drain plug 10 are prevented from descending, and the open state of the drain plug 10 is maintained.

In the state where the drain plug 10 is kept open, the manual button 19, the operating shaft 20 and the connecting shaft 26 shown in FIG.
That is, the urging force of the spring member 30 and the self-weight of the manual button 19, the operation shaft 20, and the connecting shaft 26 move up to a position where they are balanced and stop. At this time, the engaged member 33 is moved to the initial position shown in FIG. 2 (the position where the drain plug 10 is in the closed state) in conjunction with the movement of the output shaft 27 which has been rotated once to open the drain plug 10. 8 (the position shown in FIG. 8), but the manual button 19 is configured so that the engaged member 33 can slide on the cutout surface 36a formed on the operation shaft 20. 8 is stopped at the slightly raised position (position moved up by the spring member 30) shown in FIG. 8 from the maximum depressed position shown in FIG. Can easily recognize that

Next, when the drain plug 10 is closed by electric operation, when the motor 22 is driven again in FIG. 8, the motor 22 rotates the output shaft 27 to open the drain plug 10 described above. Similarly to the above, the engaged member 33 is moved down by the arm portion 34a of the engaging member 34 (see FIG. 6). As a result, the operation wire 13 is pushed again, and the drain plug 10 shown in FIG. 7 moves up again from the position indicated by the solid line to the position indicated by the two-dot chain line.

The upward movement of the drain plug 10 causes the drain plug 10
The movable ring 47, which has been engaged with the upper end of the guide piece 43 at the time of opening and holding, has the saw tooth-shaped meshing teeth 47b slide down on the meshing teeth 43b of the guide piece 43, so that the shaft 4
Rotation by a small angle about 4 causes the engagement with the guide piece 43 to be released. When the output shaft 27 of the electric motor 22 shown in FIG. 6 further rotates to return the engaged member 33 to the initial position shown in FIG. 2, the drain plug 10 shown in FIG. With the urging force of 49, the fastening ring 46
And the movable ring 47 are lowered along the guide piece 43 via the protruding pieces 46a, 47a.

By this series of operations, the drain plug 10
Descends from the position shown by the two-dot chain line shown in FIG. 7 to the original position shown in FIG. When the drain plug 10 is closed, the operation wire 13 inserted into the pushing hole 45 of the shaft rod 44 operates in a state of being pushed downward by the upper end surface of the pushing hole 45, and the inside of the tub 9 rim portion The umbrella portion 26a of the connecting shaft 26 shown in FIG.

The connection shaft 26 is moved by the push-up force of the operation wire 13 and the urging force of the spring member 30.
0, the manual button 19 is moved to the top edge 9 of the rim of the bathtub 9.
a can be returned to the manual button 1
By visually recognizing that 9 is at the uppermost edge 9a of the rim, it is possible to reliably recognize that the drain plug 10 is in the closed state.

As described above, the drainage device of the present invention
When the drain cock 10 is electrically operated to open and close, the operator turns on the drive switch (not shown) to drive the electric motor 22 of the operation unit 11 to rotate the output shaft 27 once, thereby opening the drain cock 10. When the drain plug 10 is opened, the manual button 19 is located at a deep position in the guide tube 17. When the drain plug 10 is closed, the manual button 19 is located in the guide tube 17. Since it is located on the upper surface, the operator can easily recognize the open / closed state of the drainage plug by the position of the manual button 19.

Next, a case where the drain plug 10 is manually opened and closed by the operation unit 11 shown in FIG. 2 will be described. When the manual button 19 of the operation unit 11 shown in FIG. 2 is turned on as shown in FIG. 9, the operation shaft 20 fixed to the manual button 19 slides through the insertion hole 33a of the engaged member 33,
The connecting shaft 26 connected thereto is directly pushed down. By this pushing operation, the connecting shaft 26 pushes the operation wire 13 toward the lock mechanism 12 side of the drain plug 10 shown in FIG. 5 against the urging force of the spring member 30.

When the operation wire 13 is pushed, the lock mechanism 12 causes the shaft rod 44 to be moved by the operation wire 13 as shown in FIG.
Up to the position indicated by the two-dot chain line. At this time, as described above, the movable ring 47 rotates around the shaft rod 44 by releasing the protruding piece 47a from the guide piece 43 and is engaged with the meshing teeth 43b formed at the upper end of the guide piece 43. . Thus, even if the operator releases his / her hand from the manual button 19 shown in FIG. 9 and the operation wire 13 is no longer pushed out to the lock mechanism 12 side, the drain plug 10 is moved from the position shown by the two-dot chain line in FIG. Although it descends to the position shown by
Since the flange side 48 of the fourth member is in contact with the upper end of the movable ring 47, it does not descend any more, and the open state can be maintained satisfactorily.

When the operator releases his hand from the manual button 19, the connecting shaft 26 shown in FIG. 9 loses its pushing force, and the urging force of the spring member 30 abutting on the umbrella portion 26a of the connecting shaft 26 is eliminated. As a result, the position shown in FIG. 9 is raised from the position shown in FIG. 8 (the position moved upward by the urging force of the spring member 30), and as a result, the manual button 19 is slightly raised from the maximum pressed position shown in FIG. (See FIG. 8), the operator visually recognizes the manual button 19, and
Can recognize the open state of the device. Subsequently, when manually closing the drain cock 10 which has been manually opened as described above, the manual button 19 at the position of FIG.
The operation wire 13 crimped to the umbrella portion 26a at the tip of the connection shaft 26 via the operation shaft 20 is pushed out to the lock mechanism 12 side of the drain plug 10 shown in FIG.

The operation wire 13 extruded toward the lock mechanism 12 abuts against the upper end surface of the pushing hole 45 of the shaft rod 44 and pushes it upward. Push up to the position indicated by. At this time, the movable ring 47 and the guide piece 43 engaged while the drain plug 10
The drain plug 10 and the shaft 44 are pushed downward by its own weight and the urging force of the spring member 49, and the drain port 15 is closed by the drain plug 10.

When the drain plug 10 is closed, the operation wire 13 abutting on the upper end surface of the push hole 45 of the shaft rod 44 is pushed back to the operation section 11 shown in FIG. The connecting shaft 26 is pushed upward. Due to the upward movement of the connection shaft 26, the manual button 19 returns to the position of the upper edge 9a of the rim portion of the bathtub 9 shown in FIG.

That is, in the drainage device of the present invention, when the drain plug 10 is opened and closed by manual operation, the operator pushes the manual button 19 installed on the upper edge 9a of the rim portion of the bathtub 9 to thereby operate the drain plug. The 10 open and closed states can be sequentially switched. Further, in the opening / closing operation of the drain plug 10, for example, the drain plug 10 opened by electric power may be manually closed, or the drain plug 10 manually opened may be closed by electric operation. Needless to say.

FIG. 10 shows a control device for controlling the automatic drainage device A of the present invention. In FIG. 10, reference numeral 50 denotes a switch which is installed on a wall surface of a bathroom and instructs supply / drainage to / from the bathtub 9. Reference numeral 51 denotes an operation panel provided with an electric motor 22 and a position detecting means 32 for the electric motor 22 and the drain plug 10.
And a controller 52 for controlling the operation panel 50. Reference numeral 52 denotes a power supply for supplying power to the electric motor 22 and the controller 51.

When the water supply switch 50a of the operation panel 50 is turned on while the drain plug 10 is in the opened state, the manual button 19 of the operation section 11 is turned on as shown in FIG. The magnetic member 3
The magnetic flux generated by 1 reliably passes through the position detecting means 32 and turns on a reed switch (not shown). Then, the controller 51 recognizes the open state of the drain plug 10 by turning on the reed switch, thereby, for example, rotating the output shaft 27 of the electric motor 22 once according to the table data shown in FIG. The stopper 10 is closed.

When the drain valve 10 is closed and the water supply switch 50a of the operation panel 50 is turned on,
The manual button 19 of the operation unit 11 is connected to the guide cylinder 17 shown in FIG.
Since the magnetic flux from the magnetic member 31 does not pass through the position detecting means 32, the reed switch is not turned on. Therefore, the controller 51
By opening the reed switch, the closed state of the drain plug 10 is recognized, and the closed state of the drain plug 10 is maintained without driving the electric motor 22 based on the data table shown in FIG.

Further, the drain plug 10 is in a closed state,
When the drain switch 50b is turned on, the controller 51 recognizes the closed state of the drain plug 10 by opening the reed switch, and rotates the output shaft 27 of the electric motor 22 once to open the drain plug 10. Further, when the drain switch 50b is turned on with the drain plug 10 being opened, the controller 51 turns on the drain plug 1 by turning on the reed switch.
Recognizing the open state of 0, a stop signal is transmitted to the electric motor 22, and the open state of the drain plug 10 is maintained.

As described above, the automatic drainage device A of the present invention
Since the controller 51 can accurately control the opening and closing of the drain plug 10 and the operation of supplying and draining water to and from the bathtub 9, the operator can turn on the supply and drain switches 50 a and 50 b on the operation panel arbitrarily to ensure the drain plug. Since the hot and cold water can be supplied and drained into the bathtub by performing the opening / closing operation of 10, it is possible to reliably prevent a failure such as supplying water to the bathtub 9 without noticing the open state of the drain cock 10. it can.

In the automatic drainage device A of the present invention, when the drainage plug 10 is manually opened / closed, only the manual operation of the manual button 19 provided on the operation section 11 is required to be operated.
0 can be switched between the open state and the closed state, so that there is no need to configure the manual button 19 so as to protrude from the upper edge 9a of the rim of the bathtub 9 as before, and when the infant takes a bath, the manual button 19 is pressed. Problems such as injuries caused by catching hands or feet can be solved reliably.

Further, the operation wire 13 for opening and closing the drain plug 10 can be provided to the vicinity of the bottom surface 9b of the bathtub 9 through an insertion pipe 14 which is formed by piping the inside of the rim of the bathtub 9, so that it can be used for bathing or bathtub. When cleaning the interior 9, there is no obstacle such as a chain to which the drain plug 10 is attached, which is convenient. Further, the opening and closing operation of the drain plug 10 is different from the case where the operation is performed by a conventional chain,
Since the drain plug 10 is not fitted to the drain port 15 at an angle, water leakage can be reliably prevented.

As described above, the automatic drainage device A of the present invention can quickly open and close the drainage plug by turning on the operation switch provided on the operation panel or by turning on the manual button provided on the operation section. -It is possible to operate reliably, compared to the conventional work of picking up a chain and fitting the drain plug connected to this to the drain port and closing it
The opening and closing of the drain can be performed very easily, which is convenient.

In the above-described embodiment, the operation shaft 2
Since the engaged member 33 needs to be slidably attached to the connecting portion of the connecting shaft 26 and the connecting shaft 26, the operating shaft 20 and the connecting shaft 26 are provided as separate shafts, and the driven shaft is operated in a state where both are in contact with each other. However, in the course of the driven operation of the operating shaft 20 and the connecting shaft 26, the axes of the two shafts 20 and 26 are shifted and the operating shaft 2
When there is a possibility that the vertical movement of 0 may not be transmitted well to the connecting shaft 26, the lower length of the engaged member 33 shown in FIG. 2 is configured to be long, and the engaged member 33 is shown in FIGS. Even at the position, the lower end of the operation shaft 20 and the upper end of the connection shaft 26 may be configured to be located in the insertion hole 33 a of the engaged member 33.

Further, in the present embodiment, the case where the automatic drainage device A of the present invention is operated to open and close the drain plug 10 attached to the bathtub 9 has been described. However, the present invention is not limited to this case. When opening and closing the attached drain cock,
It goes without saying that all those equipped with a drain plug can be used.

The lock mechanism in the automatic drainage device A of the present invention is not limited to the structure described in the embodiment. The open state of the drain plug 10 is once held by pushing the operation wire 13 and the operation wire is again operated. Needless to say, the drain plug 10 can be closed by pushing the drain 13.

FIG. 12 is a longitudinal sectional view showing the structure of the operation unit 11a according to another embodiment of the present invention. The operation unit 11a of this embodiment is different from the operation unit 11 shown in FIG. 2 in that an L-shaped member having one end fixed to the engaged member 33 and the other end having a through hole 53a through which the operation shaft 20 is inserted. Interlocking piece 53,
Below the through hole 53a of the interlocking piece 53, one end of the interlocking piece 53 is attached to the operation shaft 20 by a not-shown retaining ring or the like so as not to move up and down, and the other end is provided with a cutout portion 54a through which the output shaft 27 of the electric motor 22 is inserted. This is where the dropout prevention member 54 is provided.

As shown in the enlarged view of FIG. 13, the drop-out preventing member 54 has a U-shaped notch 54a formed at one end extending downward, and the notch 54a has a motor shown in FIG. The output shaft 27 is configured to pass therethrough.

The operation unit 11 according to the present embodiment thus configured
a, for example, when an infant or the like tries to pull out the manual button 19 installed on the upper surface of the bathtub 9 by mischief, or when the manual button 19 is dropped when the operation unit 11a is attached to the bathtub 9,
When the manual button 19 and the drop-off prevention member 54 with the operation shaft 20 fixed thereto abut against the bottom surface of the guide cylinder 17 via the interlocking piece 53, the manual button 19 and the operation shaft 20 are operated by the operation unit 11a. It can be better prevented from being pulled out or dropped.

In the operation section 11a, as shown in FIG. 13, the magnetic member 31a is mounted on the drop-out prevention member 54, and the position detecting means 32b is mounted on the perforated section 21b formed on the outer wall of the housing cylinder 21. By attaching, for example, when the engaged member 33 is pressed down by electric power and the drain plug 10 is opened via the connecting shaft 26 and the operation wire 13, the interlocking piece 53 having one end fixed to the engaged member 33 becomes 14, comes in contact with the drop-out prevention member 54 fixed to the operation shaft 20 by a not-shown retaining ring or the like, and pushes it downward as shown in FIG.

The drop-out preventing member 54 has a notch 54a at the other end.
Since the output shaft 27 of the electric motor 22 is inserted through the output shaft 27, the drop-out preventing member 54 can be rotated by the output shaft 27 in the lateral direction when pushed down by the interlocking piece 53 and lowered. The magnetic member 31b provided on the drop-out preventing member 54 is securely placed in front of the position detecting means 32b.
1 side wall.

As a result, the position detecting means 32b detects the magnetic force of the magnetic member 31b well and performs a switching operation, so that the open state of the drain plug 10 can be accurately transmitted to the controller 51. Water supply and drainage treatment in the bathtub 9 can be performed well.

When the drop-out prevention member 54 is lowered, the operation shaft 20 connected thereto is forcibly pushed by the manual button 19.
, The operator can reliably recognize the open state of the drain plug 10 by checking the position of the manual button 19.

The magnetic member 31 and the position detecting means 3
2b, as long as the open / close state of the drain plug 10 can be confirmed, the mounting position and the mounting structure are not limited to those described in the present invention. For example, as shown in FIG. Alternatively, the position detecting means 32b may be arranged on the perforated portion 21b of the housing cylinder 21 (both positions indicated by two-dot chain lines in FIG. 2) to detect the open / close state of the drain plug 10.

When the magnetic member 31b is arranged in a space below the guide cylinder 17, when the manual button 19 is located at the uppermost edge 9a of the rim portion, the operating shaft 20 is located at a position where it comes into contact with the lower surface of the guide cylinder 17. Drop-off preventing member (hereinafter referred to as ring) 20a for preventing the manual button 19 from dropping upward
Is attached to the operation shaft 20 at the position described above, and this ring 20
The magnetic member 31b may be attached to the tip of the attachment rod 20b, one end of which is fixed to a.

[0080]

According to the automatic drainage device of the present invention, the drainage plug can be opened and closed by manual or electric operation via an operation wire passing through the rim portion. There is no need to perform a very troublesome operation such as manual operation of fitting into the drain port, and there is no problem that the chain is caught in the limbs during bathing or cleaning, so that there is no problem.

In the automatic drainage device according to the second aspect, when the drainage plug is manually operated, the opening and closing of the drainage plug can be easily switched by pressing and operating the manual button. As described above, it is not necessary to mount the manual button so as to protrude above the rim portion of the bathtub, and it is possible to solve the problem that the infant gets hurt when he / she gets into the bath and gets hurt.

Further, in the automatic drainage device according to the second aspect, since the rotational drive of the electric motor can be converted into the push-pull operation of the operation wire and transmitted by the interlocking portion, the operation of opening and closing the drainage plug electrically can be realized by a simple mechanism. . In addition, the interlocking portion is mounted and configured so that the engaged member can slide up and down along the cutout surface of the operating shaft. Return to
The manual button fixed to the operation shaft keeps being pushed, and the operator can easily recognize the opened state of the drain cock by grasping the state of the manual button being turned on.

In the automatic drainage device according to the third aspect, since the operation shaft is provided with a drop-out preventing member, the operation shaft and the manual button are pulled out by mischief of an infant or the like, and the operation shaft and the manual button are dropped when assembled to the bathtub. -Loss can be reliably prevented.

According to a fourth aspect of the present invention, in the automatic drainage device, the width of the engaging groove formed in the engaged member is set to be two times the distance between the shaft centers between the arm engaging the engaging groove and the output shaft of the motor. By forming the motor with a length twice or more, the rotational movement of the output shaft of the motor can be well converted to the vertical movement of the operating shaft, which allows the drain cock to be opened and closed rationally in a small space. can do.

The automatic drainage device according to the fifth aspect is provided with a control means for appropriately controlling the opening / closing operation of the drain cock and the supply / drainage, so that the operator operates the supply / drainage switch on the operation panel. As a result, the drain cock is automatically closed when supplying water, and the drain cock is automatically opened when draining,
The operator can save the trouble of directly checking the open / closed state of the drain plug each time, which is convenient.

Further, the automatic drainage device according to the fifth aspect can surely prevent a failure such as supplying water into the bathtub without noticing the opened state of the drainage plug, and wastefully consumes water bills. It is not economical.

In the automatic drainage device according to the sixth aspect, the magnetic member is attached to the manual button which is arranged so as not to rotate, so that when the manual button is turned on, the magnetic member is surely provided with magnetic force by the position detecting means. It is possible to move to a position where it can be detected, and it is possible to satisfactorily grasp the input state of the manual button.

In the automatic drainage device according to the present invention, the magnetic member is attached to the drop-out preventing member, so that the magnetic member is provided with a position detecting means for detecting the magnetic force in the drive housing housing in which the electric motor is housed. The position detecting means and the electric signal line connected thereto can be reliably prevented from being exposed to outside air and deteriorated.

In the automatic drainage device according to the present invention, one end of the drop-out preventing member for mounting the magnetic member is cut out in a U-shape, and the output shaft of the electric motor is inserted through this cut-out. In conjunction with the descent, the drop-out prevention member is pressed down in a state where the operation in the rotation direction is well-restricted, and the magnetic member can be moved to a position where the magnetic force can be detected satisfactorily by the position detecting means, so that the drain cock is opened and closed. Can be accurately detected.

According to the ninth aspect of the present invention, when the engaged member is depressed by electric power, the manual button is forcibly forced via the drop-off preventing member and the operating shaft by the interlocking piece having one end connected thereto. Since the operator can confirm the position of the manual button, the operator can more surely recognize the open / closed state of the drain plug, and by attaching a magnetic member to the drop prevention member, the operator can lower the drain plug. The open / closed state can be accurately detected.

[Brief description of the drawings]

FIG. 1 is a configuration diagram showing an automatic drainage device of the present invention.

FIG. 2 is a cutaway sectional view of a main part of an operation unit constituting the automatic drainage device of the present invention.

FIG. 3 is an enlarged view of a main part of the operation part, in which a main part of an interlocking part is extracted and shown.

FIG. 4 is a state diagram showing the operation unit from a side.

FIG. 5 is a cross-sectional view showing a combined state of a drainage plug and a lock mechanism that constitute the automatic drainage device of the present invention.

FIG. 6 is an operation explanatory view showing a state where the automatic drainage device of the present invention is operated by electric power.

FIG. 7 is an explanatory view showing a state in which the open state of the drain plug is held by a lock mechanism.

FIG. 8 is an operation explanatory view showing the state of the operation unit when the drain plug is opened and held by the automatic drainage device of the present invention.

FIG. 9 is an operation explanatory view showing a state where the automatic drainage device of the present invention is manually operated.

FIG. 10 is a block diagram showing a control device of the automatic drainage device of the present invention.

FIG. 11 is a control data table in the control device.

FIG. 12 is a cutaway sectional view of a main part of an operation unit constituting an automatic drainage device according to another embodiment of the present invention.

FIG. 13 is an enlarged side view showing a dropout prevention member according to another embodiment.

FIG. 14 is an operation explanatory view showing a state in which the automatic drainage device is operated electrically in another embodiment.

FIG. 15 is a cutaway sectional view of a main part showing a conventional drainage device.

[Explanation of symbols]

 1,9 Bathtub 1a, 9a Top edge of rim part 4,10 Drain plug 6,19 Manual button 7,20 Operation axis 11,11a Operation part 12 Lock mechanism 13 Operation wire 14 Insertion pipe 17 Guide cylinder 21 Housing cylinder 22 Motor 23 Drive Unit housing 25 Guide tube 26 Connecting shaft 26a Head 26b, 33b Head 27 Output shaft 28 Interlocking unit 29 Coating member 30, 49 Spring member 31, 31a, 31b Magnetic member 32, 32a, 32b Position detecting means 33 Engagement Member 33a, 38 Insertion hole 33b Projection 34 Engagement member 34a Arm 34b Support 35 Engagement groove 36a, 36b Notch 41 Body tube 43 Guide piece 44 Shaft rod 45 Pushing hole 46 Stop ring 46a, 47a Projection 46b, 47b Meshing teeth 47 Movable ring 48 Flange piece 50 Operation panel 51 Controller A Drainage device

Claims (9)

[Claims] 1. A drainage tap is provided on a bottom surface of a bathtub, and an operation unit for opening and closing the drainage tap has a manual button for performing a manual operation and a power to the drain tap side by a pushing operation of the manual button. In the drainage device having an operation wire that transmits the power, and the drain plug has a holding unit that holds an open state, between the manual button of the operation unit and the operation wire that transmits power to the drain plug, An automatic drainage device comprising a power transmission means for reciprocating the operation wire. 2. The power transmission means, comprising: an operation shaft for pressing down the operation wire in conjunction with the depression of a manual button; a notch formed by cutting the operation shaft in a predetermined length dimension; An engaged member that slides up and down only in the vertical direction through the cutout surface, an arm that movably engages a horizontally long engaging groove formed in a side surface of the engaged member, 2. An electric motor, which is operatively driven to press the operation shaft via the engaged member, and a spring member which moves the pressed operation shaft up to a predetermined position.
Automatic drainage device as described. 3. The automatic drainage device according to claim 2, wherein the operation shaft moves up and down together with the operation shaft and includes a drop-out preventing member for preventing the operation shaft from dropping. . 4. An engagement groove formed in a side surface of the engaged member has a length having a lateral dimension at least twice as long as an axial distance between an arm engaged with the engagement groove and an output shaft. 4. The automatic drainage device according to claim 2, wherein the drainage device is formed. 5. A drain valve is provided on the bottom of the bathtub, and an operation unit for opening and closing the drain plug is provided with a manual button for performing a manual operation and a power to the drain plug side by a pushing operation of the manual button. In the drainage device having an operation wire for transmitting the drainage plug, the drainage plug has a holding means for holding the open and closed state, the drainage device, a magnetic member that changes the position in conjunction with the position of the drainage plug, Providing operating means for instructing water supply or drainage, and switching means for performing input / open operation in response to the magnetic force of the magnetic member, recognizing the open / closed state of the drain plug from the input / open state of the switching means, When the drain cock is open, and there is a water supply instruction from the operating means, and the drain cock is closed,
And, when there is a drain instruction from the operating means, a signal for driving the electric motor is output, the drain plug is open, and when there is a drain instruction from the operating means, and when the drain plug is closed, the operation is performed. An automatic drainage device comprising a control means for outputting a signal for not driving the electric motor when a water supply instruction is issued from the means. 6. The automatic drainage device according to claim 5, wherein the magnetic member is attached to a manual button. 7. The automatic drainage device according to claim 5, wherein said magnetic member is attached to a dropout prevention member. 8. The drop-out prevention member has one end fixed to the operation shaft, a U-shaped notch formed at the other end, and an output shaft of an electric motor inserted through the notch. The automatic drainage device according to claim 7, wherein 9. An interlocking member for pressing down the drop-out preventing member when the engaged member has one end fixed to the engaged member and the electric motor rotates the arm to press the engaged member. 9. The automatic drainage device according to claim 8, comprising: