JP2010101047A - Discharge device for flushing water for flushing toilet bowl - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a discharge device for flushing water for flushing a toilet bowl, capable of solving the problem of causing a ball chain to interfere with a peripheral member due to the looseness of the ball chain, resulting in a drain valve failing to close satisfactorily. <P>SOLUTION: The discharge device for flushing water has: the drain valve 32 including a float valve; a flushing handle; and the ball chain 44 with one end side connected to an operating lever projected into a flushing tank from the flushing handle and with the other end side connected to the drain valve 32 side with a connecting member 92. The connecting member 92 is integrally provided with a guide part 108 formed in cylinder shape tapered to be enlarged in diameter toward the upper part and to be opened at the upper end to surround from the outside a lower part of the ball chain 44 from the connected position to the connecting member 92 up to the upper part of predetermined length, thereby regulating the position to prevent projection caused by the looseness. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a flushing water discharge device for flushing toilet bowls, in which flush water stored in a wash tank is discharged from a discharge port toward a toilet bowl by opening a drain valve.

  Conventionally, (b) a drain valve comprising a float valve provided at the bottom of the washing tank so as to be openable and closable and opening the washing water inside the washing tank toward the toilet by opening the valve, and (b) a wall of the washing tank. (C) One end side is connected to the operation lever protruding from the cleaning handle into the cleaning tank, and the other end side is connected to the connecting member. For example, a flushing water discharge device for toilet flushing is widely used, which is connected to the drainage valve side and has a ball chain that opens the drainage valve by opening the washing handle.

In recent years, cleaning tanks have become more compact, and ball taps, floating balls, overflow pipes, and other components are lined up inside the cleaning tank. The ball chain connecting the two may interfere with the peripheral members and cause entanglement.
Such problems are also pointed out in Patent Document 1 below.

The phenomenon in which the ball chain interferes with the peripheral members and causes entanglement occurs mainly in the following cases.
In this kind of cleaning water discharge device, when the cleaning handle is rotated and opened, the ball chain becomes in a tension state, and the drain valve is pulled up by the ball chain, thereby opening the discharge port and cleaning water inside the cleaning tank. Is discharged towards the toilet.

In the case of a normal washing water discharge device, the washing handle is subsequently returned to its original position, but at this time the drain valve is in a state of being lifted by buoyancy, and as a result, the ball chain is in a slack state (described later in the washing switching described later). In the case of a device equipped with a cup and a switching valve, the cleaning handle is returned immediately after the opening operation even in the case of small cleaning).
At this time, the ball chain suddenly bends from the connecting position to the connecting member connecting it to the drain valve side, and the lower part following the connecting position protrudes to the periphery due to the slack.
And the lower part of the ball chain that protrudes from the periphery due to the slack may interfere with the peripheral member and get entangled or caught.

In such a state, the length of the ball chain is substantially the same, and when the drain valve starts to descend thereafter, the ball chain is pulled and the drain valve is in the closed position. As a result, the discharge port remains open and water in the cleaning tank is discharged.
Such a phenomenon is particularly likely to occur in a cleaning water discharge device including a cleaning switching cup and a switching valve.

  Conventionally, as a drain device for washing water, (a) at the time of small washing, water is accumulated inside by closing the drain hole to become a weight for the drain valve, and the drain valve is quickly closed to discharge the washing water. While restricting the amount of water to be small for small washing, when draining large cleaning, water is drained and the drain valve is closed late, discharging more washing water than when small washing is performed. And a switching valve that opens and closes a drain hole of the cleaning switching cup (for such a cleaning water discharge device, the following Patent Document 2 is known). Is disclosed).

An example is shown in FIG.
In FIG. 7, reference numeral 200 denotes a drain valve made of a float valve, 202 denotes a ball chain, and 204 denotes a washing switching cup.
Here, the washing switching cup 204 includes a lower cup 204-1 and an upper cup 204-2. The lower cup 204-1 is provided with a water drain hole 206-1, and the upper cup 204-2 is provided with a water drain hole 206-2.
Reference numeral 208 denotes a switching valve that swings in the left-right direction in the figure about the shaft 210. The lower end of the ball chain 202 is connected to the switching valve 208 by a connecting member 212.

The switching valve 208 closes and opens the drain holes 206-1 and 206-2 at the same time. The lower valve body 214-1 that opens and closes the drain hole 206-1 at the lower part and the water at the upper part of the arm 216. An upper valve body 214-2 for opening and closing the extraction hole 206-2 is provided.
The washing switching cup 204 and the switching valve 208 are moved up and down integrally with the drain valve 200.

  In the washing water discharge device shown in FIG. 7A, the water accumulated in the washing switching cup 204 acts as a weight for the drain valve 200, and at the time of small washing shown by a solid line in the drawing, The action as a weight differs depending on the large cleaning shown in the figure, and this switches between large cleaning and small cleaning. Therefore, this discharge device does not need to hold the cleaning handle in the open position even during small cleaning. .

However, in the case of this cleaning water discharge device, the upper cup 204-2 and the upper valve body 214-2 that form a part of the cleaning switching cup 204 are positioned immediately near the position where the ball chain 202 is connected to the connecting member 212. Therefore, when the cleaning handle is rotated and opened, and then returned, the lower part of the ball chain 202 that is bent largely at the coupling position to the connecting member 212 and sags and protrudes to the periphery is shown in FIG. As shown, a ring W is formed between the connecting member 212 and the upper valve body 214-2, the upper tank 204-2, etc., and then when the drain valve 200 starts to descend, The connecting member 212 may be sandwiched between the upper valve body 214-2, the upper cup 204-2, etc., or may be caught by the upper valve body 214-2.
In this case, the substantial length of the ball chain 202 is shortened, and the ball chain 202 is in a tension state while the drain valve 200 is being lowered. As a result, the drain valve 200 cannot be lowered to the closed position, and the washing tank There arises a problem that the cleaning water in the inside becomes untreated.

  In addition, in patent document 1, in order to prevent such slack of a ball chain, the point which surrounds the lower part of a ball chain with a connection member with a vinyl tube is disclosed, but this vinyl tube itself is others. In addition to the troublesome work of mounting the vinyl tube at a predetermined position, the position of the vinyl tube is changed while the drain valve 200 is repeatedly pulled up by the ball chain 202. In this case, the vinyl tube may not be able to perform its original function, which is not necessarily sufficient in terms of reliability.

Japanese Utility Model Publication No. 60-4672 JP 2007-197985 A

  The present invention is based on the circumstances as described above, and the wash water for toilet cleaning can solve the problem that the ball chain interferes with the peripheral members due to slack of the ball chain and the drain valve does not close well. It was made for the purpose of providing a discharge device.

  Thus, according to the first aspect of the present invention, (a) a drain valve provided at the bottom of the washing tank so as to be openable and closable, and draining the washing water inside the washing tank toward the toilet by the valve opening, A cleaning handle that is rotatably provided on the wall of the cleaning tank and that opens the drain valve; and (c) one end is connected to an action lever that protrudes from the cleaning handle into the cleaning tank; Washing water for toilet flushing having a ball chain that is coupled to a connecting member and is connected to the drain valve side by the connecting member, and opens the drain valve by opening the cleaning handle. In the apparatus, the connecting member has a cylindrical shape with an opening at the upper end, encloses the ball chain from the outer side to the upper part of the predetermined length from the coupling position to the connecting member, and the lower part of the ball chain is formed. The guide part that regulates the position is provided integrally. The features.

  According to a second aspect of the present invention, in the first aspect of the present invention, the guide portion has a cylindrical shape that gradually expands upward.

  According to a third aspect of the present invention, in any one of the first and second aspects, the guide portion is provided with a side opening for working to uncouple or uncouple the ball chain from the coupling portion of the connecting member. It is characterized by being.

  According to a fourth aspect of the present invention, in any one of the first to third aspects, the discharge device is configured such that (a) a small amount of water is stored in the drainage hole by closing the drain hole during the small cleaning. The drain valve is closed early to restrict the discharge amount of the washing water to a small amount for small washing, while at the time of large washing, water is released by opening the drain hole and the drain valve is closed late, A washing switching cup for switching between large and small washings that moves up and down integrally with the drain valve, and (b) a switching valve that opens and closes the drain hole of the washing switching cup. The ball chain is connected to the switching valve by the connecting member, and the cleaning switching cup protrudes to a position above the position where the ball chain is connected to the connecting member, and the cleaning switching cup and the Open and close the drain hole of the washing switching cup at a position between the ball chain The valve body extended from the switching valve is located.

  According to a fifth aspect of the present invention, in the fourth aspect, the guide portion rises upward to the upper end portion of the switching cup.

Effects and effects of the invention

  As described above, the present invention has a cylindrical shape whose upper end is an open shape, encloses from the outside from the position where the ball chain is connected to the connecting member to the upper part of the predetermined length, and regulates the position of the lower part of the ball chain. The part is provided integrally with the connecting member.

  When the cleaning handle that has been opened is returned to its original position and the ball chain is released from tension, the slack is most caused in the lower part of the ball chain following the connecting position to the connecting member. Will suddenly bend at the coupling position and protrude to the periphery.

  However, in the present invention, the guide member is integrally provided in the connecting member, and the lower part from the above-mentioned coupling position to the upper side of the predetermined length in the ball chain is stored in the guide part, and the lower part is position-regulated by the guide part and is Protrusion to the surface is well prevented.

  This effectively prevents the lower part of the ball chain, which is greatly slackened and protrudes from the periphery, from interfering with or catching on the surrounding members, and when the drain valve is lowered, the drain valve is pulled by the ball chain and closed. It is possible to solve the problem that the cleaning water in the cleaning tank is left unattended.

  In the present invention, such a guide portion is integrally formed with the connecting member. Therefore, a special member for the guide portion is not required separately, and the number of required parts is not particularly increased as compared with the conventional case. The discharge device can be configured with a simple structure similar to the conventional one.

  In addition, since the guide part is configured integrally with the connecting member, there is no fear that the guide part will be displaced or moved along the ball chain while repeating the lifting of the drain valve with the ball chain, Therefore, there is no fear that the guide portion will not exhibit its original function due to the displacement or movement, and the operation of the guide portion can be made highly reliable.

In this invention, this guide part can be made into the cylinder shape of the shape which expands gradually toward upper direction (Claim 2).
When the shape of the guide part is a straight cylinder with the same diameter in the axial direction, the angle of the ball chain changes abruptly at the upper end of the guide part. When trying to lift the valve, the operating force to lift the drain valve upward becomes difficult to be effectively transmitted to the drain valve, and the load on the washing handle is also caused by the resistance force generated between the ball chain and the upper end of the guide part. It gets bigger.

  However, in the present invention, since the guide portion has a shape that gradually expands toward the upper end, a sudden change in the angle of the ball chain at the upper end of the guide portion can be suppressed, and the operation force by the cleaning handle can be effectively reduced by the drain valve. In addition, there is an advantage that the load applied to the cleaning handle can be reduced.

Furthermore, the guide part has such a shape that expands upward, so that a certain amount of slack of the ball chain is allowed inside the guide part, and therefore, the slack of the ball chain at the part protruding from the guide part can be reduced. Can also be obtained.
Here, the connecting member including the guide portion can be made of a hard resin.

In the present invention, it is also possible to provide a working side opening for coupling or releasing the ball chain to the coupling portion of the connecting member in the guide portion (claim 3).
By doing in this way, it is possible to draw the ball chain inserted inside the guide part to the outside through the side surface opening part, even though the guide part is configured integrally with the connecting member, and to attach and detach the ball chain. It can be done without hindrance.

The present invention is particularly suitable when applied to a type in which a washing switching cup and a switching valve are provided as defined in claim 4 and the ball chain is connected to the switching valve by a connecting member.
In this case, it is desirable that the guide portion is configured to rise upward to the upper end portion of the switching cup (claim 5).

Next, embodiments of the present invention will be described in detail with reference to the drawings.
In FIG. 1, reference numeral 10 denotes a cleaning tank, which has a double tank structure of a ceramic outer tank 12 and a resin inner tank 14 inside.
A ceramic hand-washing basin 16 that also serves as a lid is provided on the upper part of the outer tank 12, and a hand-washing water discharge pipe 18 is provided upright from the hand-washing basin 16.
A drainage hole 20 is provided at the bottom of the handwashing bowl 16, and the handwash water discharged from the handwash water discharge pipe 18 falls from the drainage hole 20 into the cleaning tank 10.

A ball tap 22 is disposed inside the cleaning tank 10.
The ball tap 22 has a valve portion connected to a floating ball 28 via an interlocking arm 24 and an adjusting bolt 26. The valve portion is opened and closed by raising and lowering the floating ball 28, and the cleaning tank is opened and closed by opening and closing the valve portion. Water supply to 10 and water supply stop are performed.
Here, the adjusting bolt 26 adjusts the vertical position of the floating ball 28.
The ball tap 22 is provided with a water discharge portion 29 for supplying water to the inside of the cleaning tank 10, and a water conduit 30 comprising a bellows tube for supplying water to the hand washing water discharge pipe 18 from the ball tap 22. It extends, and the front-end | tip part is inserted and connected to the hand-washing water discharge pipe 18.

A drain valve 32 made of a float valve is disposed at the bottom of the cleaning tank 10.
The drain valve 32 has a hollow spherical shape, and when the drain valve 32 is lifted from the valve seat 36, the discharge port 38 is opened, and the cleaning water in the cleaning tank 10 is discharged from the discharge port 38 toward the toilet. .
Further, the drain valve 32 is seated on the valve seat 36 to close the discharge port 38 (see FIG. 1).

On the other hand, a cleaning handle 40 is rotatably attached to the side wall of the cleaning tank 10.
An L-shaped action lever 42 protrudes from the cleaning handle 40 into the cleaning tank 10, and its tip and the drain valve 32 are connected by a ball chain 44 via a cleaning switching cup 46.
Here, the washing switching cup 46 and the drain valve 32 are connected so as to move up and down integrally, and the washing switching cup 46 is provided with a cylindrical guide portion 48, and the guide portion 48. Is fitted on the outer peripheral surface of the overflow pipe 50 so as to be slidable up and down.
The washing switching cup 46 and the drain valve 32 move up and down under the guides of the guide portion 48 and the overflow pipe 50.

FIG. 2 specifically shows the configuration of the cleaning switching cup 46.
As shown in this figure, the washing switching cup 46 is a separate body from the lower cup 52 as the main cup and the lower cup 52, and serves as an independent adapter cup that is not in communication with the lower cup 52. The upper cup 54 is used.
Here, the upper ends of both the lower cup 52 and the upper cup 54 are open.

The lower cup 52 has a cylindrical shape, has a water reservoir chamber 56 therein, and is provided with a water drain hole 58 at the bottom.
On the other hand, as shown in FIG. 3, the upper cup 54 has a substantially rectangular planar shape, and as shown in FIG. 1, the upper cup 54 is at a position biased toward the front wall side of the cleaning tank 10. Is provided.
Specifically, in the upper cup 54, the front part on the left side and the rear part on the right side in FIG. 2 of the peripheral wall are shifted to the tank wall side, more specifically to the front wall side, than the corresponding front part and rear part of the peripheral wall in the lower cup 52. It is arranged at the position.

The upper cup 54 has a water reservoir chamber 60 therein, and a water drain hole 62 is provided at the lower end of the rear part of the peripheral wall (right part in the figure).
A ring-shaped fitting portion 66 is provided at the lower end portion of the upper cup 54. The upper cup 54 is detachably assembled to the lower cup 52 by fitting the ring-shaped fitting portion 66 into the upper end portion of the lower cup 52.

Reference numeral 68 denotes a switching valve, which has a cylindrical body 70 whose upper and lower positions are fixed with respect to the lower cup 52 and a valve shaft 72 inserted therein so as to be movable up and down. The ball chain 44 is connected to the upper end portion by a connecting member 92 described later. As the ball chain 44 is pulled up, the valve shaft 72 relatively moves upward in the cylindrical body 70.
Here, the upper tank 54 protrudes above the position where the ball chain 44 is coupled to the connecting member 92.

The valve shaft 72 is provided with a stepped portion 73 at the bottom in the figure.
On the other hand, the cylindrical body 70 is provided with stepped portions 77 at positions facing each other in the axial direction.
Therefore, after the valve shaft 72 is lifted and the stepped portions 73 and 77 come into contact with each other, the cylindrical body 70 is lifted together with the valve shaft 72.
That is, the entire switching valve 68 is pulled up by the ball chain 44, and the switching valve 68 is pulled up, whereby the washing switching cup 46 and the drain valve 32 are lifted together as will be apparent later.

A lower valve body 80 for opening and closing the drain hole 58 of the lower cup 52 is provided at the lower end of the valve shaft 72, and the lower valve body 80 is attached to the valve shaft 72 downward by a coil spring 82. It is energized.
As shown in FIG. 3, the cylindrical body 70 is provided with a shaft 74 at its upper end, and the shaft 74 is inserted into shaft holes 78 of a pair of bearing portions 76 rising upward from the lower cup 52. It is fitted so that it can rotate.
As a result, the switching valve 68, specifically, the cylindrical body 70 can swing around the axis of the shaft 74 in the left-right direction in FIG.

  A plate-like arm 84 extends from the switching valve 68, more specifically, the cylindrical body 70, to the upper cup 54 side. A plate-like portion that is bent from the arm 84 and rises upward at the tip of the arm 84, and its plate An upper valve body 86 for opening and closing the drainage hole 62 is provided which is provided in a protruding shape on the shape portion and includes a protruding portion that enters the drainage hole 62.

Here, the upper valve body 86 opens the water drain hole 62 of the upper cup 54 when the lower valve body 80 opens the water drain hole 58 of the lower cup 52 as shown in FIG. As described above, when the lower valve body 80 closes the drain hole 58 of the lower cup 52, the drain hole 62 of the upper cup 54 is closed.
FIG. 5B shows the state of the cleaning switching cup 46 and the switching valve 68 when performing large cleaning, and FIGS. 2 and 5A show those cleaning switching cups 46 when performing small cleaning. And the state of the switching valve 68 is represented.

A water-saving cup 88 is detachably attached to the cleaning switching cup 46 at a position directly below the upper cup 54 and at a position higher than the lower cup 52.
This water-saving cup 88 is in a state where water is always stored in the internal water reservoir 90 and acts as a weight on the drain valve 32 at all times.
Here, the water saving cup 88 has an open upper end.

The washing switching cup 46 and the switching valve 68 operate as follows.
In this embodiment, when the cleaning handle 40 is rotated counterclockwise in FIG. 5B, that is, rotated to the rear wall side of the cleaning tank 10 and opened to perform large cleaning, the ball chain 44 is pulled to the back side. As a result, the switching valve 68 rotates in the clockwise direction in the drawing to open the drain hole 58 of the lower cup 52 and the drain hole 62 of the upper cup 54, respectively.
In this state, the drain valve 32 and the washing switching cup 46 are lifted together by pulling up the ball chain 44, and the discharge port 38 of FIG. 1 is opened.
Accordingly, the cleaning water stored in the cleaning tank 10 starts to be discharged downward from the discharge port 38.

As the cleaning water is discharged, the water level of the cleaning water in the cleaning tank 10 drops and the water surface reaches the upper end of the upper cup 54. Then, as the water level drops, the water in the upper cup 54 passes through the drain hole 62. Drained.
However, at this time, the lowering speed of the water surface in the upper cup 54 becomes slower than the lowering speed of the water surface of the cleaning water in the cleaning tank due to the resistance in the drain hole 62.
As a result, the upper cup 54 acts as a weight for the drain valve 32.

Accordingly, the drain valve 32 starts to descend at an early stage as compared with the case where there is no upper cup 54 as described above, and water saving of the washing water amount is performed.
When the water surface further descends and reaches the water-saving cup 88, the action of a weight is added to the drain valve 32 of the water-saving cup 88 that stores water therein, and the washing switching cup 46 and the drain valve 32 are moved along with the subsequent water surface descent. Both descend.

At this time, the lower cup 52 is submerged and does not act as a weight for the drain valve 32.
The lower cup 52 alone functions as a washing switching cup and also has a function of saving water, but by attaching the upper cup 54 to the lower cup 52, the lower cup 52 functions as a washing switching cup and as a weight for the drain valve 32. The action disappears, and the upper cup 54 acts as a washing switching cup and acts as a weight for the drain valve 32.
Thereafter, the drain valve 32 finally sits on the valve seat 36 and closes, and the discharge of the washing water from the discharge port 38 is stopped.

On the other hand, when performing a small cleaning, the cleaning handle 40 is rotated in the clockwise direction in FIG.
At this time, the switching valve 68 rotates counterclockwise around the shaft 74 by pulling the ball chain 44 to the left side (morning side) in FIG. The drain hole 62 of the cup 54 is closed.
In this state, the drain valve 32 is lifted upward together with the washing switching cup 46 by pulling up the ball chain 44 and opens the discharge port 38.
At the same time, the discharge of the washing water from the discharge port 38 is started.

As the cleaning water is discharged, the water level inside the cleaning tank 10 is lowered.
At the time of this small washing, the drain hole 62 of the upper cup 54 in the washing switching cup 46 is in a closed state (the drain hole 58 of the lower cup 52 is also closed), and the upper cup 54 enters the internal water reservoir 60 with water. And acts as a weight for the drain valve 32.

  Therefore, at the time of this small washing, when the surface of the washing water in the washing tank 10 reaches the upper cup 54, the action of the upper cup 54 is added and the entire water in the upper cup 54 is filled with the weight. Therefore, the drain valve 32 starts to descend together with the cleaning switching cup 46 and the water-saving cup 88 from an earlier stage than during the large cleaning, and the time until the valve is closed is shortened. Accordingly, the amount of washing water discharged from the discharge port 38 during this period is regulated to be small, and the toilet bowl is slightly washed with a small amount of washing water.

In this embodiment, the lower end of the ball chain 44 is coupled to a connecting member 92, and the connecting member 92 is connected to the valve shaft 72, that is, the switching valve 68.
FIG. 4 shows the specific configuration of the connecting member 92 in detail.
In this embodiment, the connecting member 92 has a connecting portion 94 for connecting the ball chain 44 and the valve shaft 72 of the switching valve 68 at the lower part thereof.
The connecting portion 94 has a connecting portion 96 with the ball chain 44 on the upper side and a connecting portion 98 with the valve shaft 72 on the lower side, and the upper connecting portion 96 and the lower connecting portion 98. Is provided with a lower opening 99 on the side surface.
The lower coupling portion 98 has a substantially cylindrical shape, and is coupled to the valve shaft 72 by inserting the upper end portion of the valve shaft 72 upward from the lower side.

  Specifically, a pair of elastic locking claws 100 is provided at the upper end of the valve shaft 72, the locking claws 100 are inserted upward, and the locking claws 100 are connected to the coupling portion 98. The valve shaft 72 is coupled to the coupling portion 98 in a locked state by being latched to the latching portion 102.

The engaging claws 100 are provided with flat engaging surfaces 101 which are parallel to each other.
On the other hand, the connecting portion 98 on the side of the connecting member 92 is also provided with an engaging surface 103 having a flat shape corresponding to the inner surface thereof. The relative position in the rotation direction is defined.

  On the other hand, the upper coupling portion 96 is provided with an engagement hole 106 penetrating vertically at the center thereof, and a slit-like insertion portion 104 that connects the engagement hole 106 and the lower opening 99.

The coupling portion 96 and the ball chain 44 are coupled as follows.
That is, as shown in FIG. 6 (II), the lower end portion of the ball chain 44 is inserted into the inside through the lower opening 99, and subsequently, in the ball chain 44 as shown in FIGS. 6 (II) and (III). A thin rod-like link 109 connecting the balls 107 and 107 is inserted into the slit-like insertion portion 104 and moved upward along the insertion portion 104 and brought into the engagement hole 106.
In this state, the upper ball 107 and the lower ball 107 of the link 109 inserted through the engagement hole 106 are positioned above and below the engagement hole 106 (see FIG. 6 (IV)). Here, the lower end of the ball chain 44 is connected to the connecting portion 96.

In this embodiment, the cylindrical guide portion 108 is integrally formed with the connecting member 92 in a form that rises upward from the connecting portion 94.
Here, the connecting member 92 is made of hard resin. Specifically, POM (polyoxymethylene) is used as the resin here.
The guide portion 108 has a cylindrical shape with a tapered shape that gradually expands upward and an upper end that is open.
The guide portion 108 encloses the lower portion from the coupling portion of the ball chain 44, specifically the portion from the coupling position to the coupling portion 96 to the upper portion of the predetermined length from the outside, and regulates the position. It works to prevent the lower part of the long upper part from protruding to the side due to slack.

In this embodiment, the guide portion 108 rises upward at a height up to the upper end portion of the upper cup 54, specifically, as shown in FIG.
In FIG. 4, reference numeral 110 denotes an opening at the upper end of the guide portion 108.

The guide portion 108 is also provided with an upper opening portion (side opening portion) 111 that opens on the side surface.
The upper opening 111 has a meaning as a working opening for connecting or releasing the ball chain 44 to or from the connecting portion 96, and the upper opening 111 follows the connecting portion 96. It is provided on the upper side.
The guide part 108 and the connecting part 94 are provided concentrically.

In this embodiment, the ball chain 44 is inserted into the guide portion 108 through the opening 110 at the upper end of the guide portion 108 as shown in FIG. 6 (I), and as shown in FIG. 6 (II). Further, the lower end side is pulled out to the outside through the upper opening 111, so that the ball chain 44 can be connected to the connecting portion 94 in detail without any problem, although the guide portion 108 is integrally formed with the connecting portion 94. Can be combined.
Alternatively, the connection can be easily removed when the need arises.

  In the present embodiment as described above, the guide member 108 is integrally provided on the connecting member 92, and the lower part of the ball chain 44 from the coupling position to the connecting member 92 to the upper side of the predetermined length is accommodated in the guide portion 108. Thus, the position of the lower portion is regulated by the guide portion 108, and the protrusion to the periphery is satisfactorily prevented.

  As a result, the lower part of the ball chain 44 is largely loosened and protrudes to the periphery, and in this case, it interferes with the upper valve body 86 and the upper tank 54, specifically, is caught by them. Is effectively prevented, and when the drain valve 32 is lowered, the drain valve 32 is pulled by the ball chain 44 and cannot be closed, and the problem that the washing water in the washing tank 10 is discharged can be solved. .

  Further, in the present embodiment, the guide portion 108 is integrally formed with the connecting member 92. Therefore, a special member for the guide portion 108 is not required separately, and the number of required parts is particularly increased compared to the conventional case. In addition, the washing water discharge device can be configured with a simple structure similar to the conventional one.

  In addition, since the guide portion 108 is integrally formed with the connecting member 92, the guide portion 108 is displaced or moved along the ball chain 44 while the drain valve 32 is repeatedly pulled up by the ball chain 44. Therefore, there is no fear that the guide unit 108 will not perform its original function due to such displacement or movement, and the function of the guide unit 108 can be made highly reliable.

Further, since the guide portion 108 has a tapered cylindrical shape that gradually expands upward, the following advantages are obtained.
That is, when the shape of the guide portion is a straight cylindrical shape having the same diameter in the axial direction, the angle of the ball chain 44 changes abruptly at the upper end of the guide portion, and the ball is moved by the opening operation by the rotation of the cleaning handle 40. When the drain valve 32 is to be lifted by the chain 44, the operating force for lifting the drain valve 32 upward is not easily transmitted to the drain valve 32, and the resistance force generated between the ball chain 44 and the upper end of the guide portion. As a result, the load on the cleaning handle 40 also increases.

  However, in this embodiment, since the guide portion 108 has a shape that gradually expands toward the upper end, a sudden change in the angle of the ball chain 44 at the upper end of the guide portion 108 can be suppressed, and the operation force by the cleaning handle 40 is effective. Therefore, there is an advantage that the load on the washing handle 40 can be suppressed to a small level.

  Further, since the guide portion 108 has such a shape that expands upward, a certain amount of slack of the ball chain 44 is allowed inside the guide portion 108, and therefore, the portion of the ball chain 44 at the portion protruding from the guide portion 108 is allowed. The advantage of reducing slack is also obtained.

Although the embodiment of the present invention has been described in detail above, this is merely an example.
For example, the present invention is not provided with the above-described washing switching cup 46 and switching valve 68, and can also be applied to a washing water discharge device in which the ball chain 44 is directly connected to the drain valve by a connecting member. In addition, the drain valve structure can be applied not only to a float valve but also to a flapper valve structure. For example, the present invention has various modifications without departing from the spirit of the present invention. It can be configured in the form.

It is front sectional drawing which shows the discharge apparatus of the washing water which is one Embodiment of this invention with the inside of a washing tank. It is a figure which shows the connection member in the embodiment with a washing | cleaning switching cup and a switching valve. It is a perspective view which decomposes | disassembles and shows the washing | cleaning switching cup and switching valve in the embodiment. It is the figure which showed the structure of the connection member in the same embodiment in detail. It is operation | movement explanatory drawing at the time of the large washing of the same embodiment, and the small washing. It is a figure which shows the procedure which attaches a ball chain to the connection member in the embodiment. It is a figure which shows the discharge apparatus of the conventional washing water.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Washing tank 32 Drain valve 38 Outlet 40 Washing handle 42 Action lever 44 Ball chain 46 Washing switching cup 58,62 Drain hole 68 Switching valve 80 Lower valve body 86 Upper valve body 92 Connecting member 108 Guide part 109 Link 111 Upper opening part (Side opening)

Claims (5)

(B) A drainage valve that is openable and closable at the bottom of the washing tank and opens the valve to discharge the washing water inside the washing tank toward the toilet, and (b) rotatable on the wall of the washing tank. A cleaning handle that opens the drain valve, and (c) one end side is connected to the action lever protruding from the cleaning handle into the cleaning tank, and the other end side is connected to a connecting member. A flushing water discharge device for toilet flushing, which is connected to the drainage valve side and has a ball chain that pulls up and opens the drainage valve by opening the washing handle.
The connecting member has a cylindrical shape with an opening at the upper end, and encloses the ball chain from the coupling position to the connecting member to the upper part of the predetermined length from the outside, and restricts the lower part of the ball chain. An apparatus for discharging flush water for toilet cleaning, characterized in that a guide portion is provided integrally.   2. The apparatus for discharging flush water for toilet flushing according to claim 1, wherein the guide portion is formed in a cylindrical shape that gradually expands upward.   The toilet according to any one of claims 1 and 2, wherein the guide portion is provided with a working side opening for coupling or releasing the ball chain to or from the coupling portion of the connecting member. Cleaning water discharge device for cleaning.   The discharge device according to any one of claims 1 to 3, wherein (a) when small cleaning is performed, the drainage hole is closed and water is accumulated inside to become a weight with respect to the drain valve. While closing the valve to regulate the discharge amount of the washing water to a small amount for small washing, at the time of large washing, the water drains by opening the drain hole and the drain valve is closed late, washing more than at the time of the small washing A washing switching cup for switching between large and small washings that moves up and down integrally with the drain valve for discharging water; and (b) a switching valve that opens and closes a drain hole of the washing switching cup. The connecting member is connected to the switching valve, and the cleaning switching cup protrudes to the upper side of the position where the ball chain is coupled to the connecting member, and the position between the cleaning switching cup and the ball chain. The switching valve that opens and closes the drain hole of the cleaning switching cup. An apparatus for discharging flush water for toilet flushing, characterized in that a valve body extending from the toilet is located.   5. The apparatus for discharging flush water for toilet flushing according to claim 4, wherein the guide portion rises upward to the upper end portion of the switching cup.

Images