JP4055124B2 - Washing water tank drainage mechanism - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a mechanism for performing a drain operation in a wash water tank mounted on the upper surface of a toilet bowl, and more specifically, an object of the present invention is to eliminate problems that occur when an operation handle is provided on the front side of the tank.
[0002]
[Prior art]
As shown in FIG. 5, the wash water tank T placed on the toilet bowl S is generally set such that the left and right width dimension α is larger than the front and rear depth dimension β, and the drainage operation handle H is a tank T. It is attached to the side of the. However, as shown in FIG. 6, when the cabinet C is arranged on the left and right of the tank T, or the tank T itself is housed in the cabinet C, the handle H is attached to the front portion of the tank T. At this time, the position of the handle H is arranged near either the left or right side edge in the front part of the tank in order to avoid interference with the toilet seat 30 and the toilet lid 31 that are opened up.
[0003]
As shown in FIG. 5, when the handle H is attached to the side surface of the tank T, the lever L connected to the handle H is arranged substantially parallel to the width direction of the tank T, and the turning direction of the lever L accompanying the handle operation Is the front-rear direction of the tank T. Moreover, since the front-end | tip part of the lever L can be easily located in the immediate vicinity of the drain valve apparatus F, such as a float valve, or its vicinity, linkage means R, such as a chain | strand, can be made into a substantially vertical attitude | position. Therefore, by changing the rotation direction of the lever L with respect to the drain valve device (float valve) as described in Patent Document 1, the switching operation of the washing water amount can be reliably performed.
[0004]
On the other hand, as shown in FIG. 6, when the handle H is attached to either the left or right side edge of the front surface of the tank T, the tip of the lever L is not located directly above the drain valve device F. The linkage means R such as a chain connecting the valve device F extends obliquely. For this reason, it is difficult to make a difference in stroke due to the difference in the rotation direction of the lever L, and it is difficult to switch the amount of washing water.
[0005]
Therefore, Patent Document 2 describes one means for solving the above problem when an operation handle is attached at a position away from the center on the front surface of the cleaning water tank. Patent Document 2 discloses a washing water tank device in which an operation handle provided at a position away from the center of a tank and an opening / closing operation tool for a drain valve device provided at the center of the tank are connected by a link mechanism or a pulley mechanism. Are listed. By operating an operation handle on the side of the tank, an opening / closing operation tool at the center of the tank can be operated via a link mechanism or the like to open / close the drain valve device. Therefore, the apparatus can perform the pulling up operation with respect to the drain valve device from the position immediately above, so that it is easy to switch the amount of the washing water.
[0006]
[Patent Document 1]
Japanese Patent Laid-Open No. 10-131257 [Patent Document 2]
Japanese Patent Application Laid-Open No. 11-100811
[Problems to be solved by the invention]
The device described in Patent Document 2 is configured such that the opening / closing operation tool of the drain valve device rotates in the same direction as the rotation direction of the operation handle provided on the front side of the tank, that is, in the left-right direction of the tank. Yes. Therefore, for example, as shown in FIGS. 7 to 10, the drain valve device has a structure that requires the opening / closing operation tool to be rotated in the front-rear direction of the tank in order to perform the opening / closing operation (No. 5 of Patent Document 1). The technique of the said patent document 2 was not able to be applied.
[0008]
[Means for Solving the Problems]
Referring to the drawings, the features of the drainage mechanism of the cleaning water tank created in order to solve the above-mentioned conventional problems can be rotated to the left or right side edge of the front part of the outer surface of the tank. And an operation handle H attached to the operation handle H, and a rotation axis L-1 provided in the tank and set so as to cross or conflict with the rotation axis J of the operation handle H. A movable lever L, a drain valve device F provided at the bottom of the tank, a linkage means R such as a chain for connecting the lever L and the drain valve device F in an interlockable manner, and the operation handle provided in the tank A turning transmission means K for connecting the turning axis J of H and the turning axis L-1 of the lever L so as to be interlocked with each other is provided, and when the operation handle H is turned, the turning transmission means K is interposed. The lever L rotates in the longitudinal direction of the tank. In that it is configured urchin.
[0009]
With the above configuration, when the operation handle H is attached to the front portion of the tank, the rotation axis L-1 of the lever L is connected to the rotation axis J of the operation handle H via the direction change transmission means K. The lever L can be in a posture substantially parallel to the left-right width direction of the tank, and the tip end of the lever L is directly above or near the drain valve device F. It is easy to position. Therefore, since the linkage means R such as a chain connecting the lever L and the drain valve device F can be maintained in a substantially vertical posture, the operation of switching the amount of washing water depending on the rotation direction of the handle H can be ensured. Further, since the rotation direction of the lever L can be set in the front-rear direction of the tank, it is possible to cope with a drain valve device of a type that requires the lever L to be rotated in the front-rear direction of the tank in order to perform the opening / closing operation. .
[0010]
In implementing the present invention, it is conceivable that the deflection transmission means K is constituted by a bevel gear. In this case, a normal bevel gear is arranged such that two rotation shafts are orthogonal to each other in the same plane, but if a bevel gear bevel gear is used depending on the situation, the two rotation shafts do not meet each other. It is possible to arrange two gears.
[0011]
Further, it is desirable that the rotation axis J of the operation handle H is configured to be slidable in the axial direction with respect to the direction change transmission means K. Alternatively, the rotation axis L-1 of the lever L can be configured to be slidable in the axial direction with respect to the deflection transmission means K. Note that the rotation axis J of the operation handle H and / or the rotation axis L-1 of the lever L is configured to be slidable in the axial direction with respect to the direction change transmission means K, so that the rotation axes can meet each other. In the case where there is a characteristic, the deflection transmission means K may be configured by using the above-mentioned staggered bevel gear.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
An embodiment of the present invention will be described with reference to FIGS. The drainage mechanism D of the cleaning water tank according to the present invention is configured so that the operation handle H is connected to the tank T when the drainage valve device F has a structure as shown in FIGS. 7 to 10 (see the fifth embodiment of Patent Document 1). It is applied when it is necessary to attach to the front part of the.
[0013]
In the drainage mechanism D of this example, the rotation axis J of the operation handle H and the rotation axis L-1 of the lever L are arranged so as to cross each other at right angles, and the rotation axis J of the handle H is When the turning shaft L-1 of the lever L is connected by the direction change transmission means K and the handle H is turned from the front side of the tank T in the left-right direction, the lever L turns in the front-rear direction of the tank T. It has a special feature where it is configured to do so. In this example, a conventional ball chain can be used as the linking means R for connecting the lever L and the drain valve device F.
[0014]
The diverting transmission means K of this example includes a pair of bevel gears 2 and 3 housed in the housing 1 and is set so that the rotation axes are orthogonal to each other. However, setting the crossing angle of the axis of the rotation axis to other than 90 ° according to the situation is not hindered. Moreover, although the gear ratio of the bevel gears 2 and 3 is usually 1: 1, it is not hindered to adopt a different gear ratio as necessary. In order to attach the direction change transmission means K, a bracket portion 12 is provided in the housing 1, and this is formed in, for example, the inner tank 10 when the washing water tank has a double wall structure or a notch portion formed in a separately provided support member. 11 and can be fixed by fitting the clip 13 to the protruding portion of the bracket portion 12.
[0015]
The rotation axis L-1 of the lever L is connected to one bevel gear 2 provided in the direction change transmission means K so as to rotate integrally. A bearing 4 is interposed between the lever L and the housing 1. The other bevel gear 3 is connected to a prism portion J-1 provided on the rotation axis J of the handle H. However, this prismatic portion J-1 rotates integrally around the axis with respect to the bevel gear 3, but is configured to be slidable in the axial direction. Further, an appropriate position on the front side of the rotation axis J of the handle H is rotatably held by a bearing 14 that is appropriately fixed to the front portion of the tank T using a stopper 15.
[0016]
Thus, by making the prismatic portion J-1 of the handle H slidable with respect to the bevel gear 3, the distance from the handle H to the direction change transmission means K is increased or decreased for changing the size of the tank T. Even in this case, easy handling is possible. A bearing 5 is preferably interposed between the bevel gear 3 and the housing 1.
[0017]
Further, as shown in FIG. 4, it is conceivable that a prismatic portion L-2 is provided on the rotation axis L-1 of the lever L, and the lever L is also slidable with respect to the bevel gear 2. Thereby, when the space | interval from the direction change transmission means K to the drain valve apparatus F increases / decreases for the dimension change of the tank T, a response | compatibility becomes easy. When both the rotation axis J of the handle H and the rotation axis L-1 of the lever L are slidable with respect to the bevel gears 2 and 3, the two prisms J-1 and L-2 are In order to avoid meeting, it is desirable that the bevel gears 2 and 3 are bevel gears.
[0018]
In the drainage mechanism D of the present invention configured as described above, when the handle H provided on the front portion of the tank T is operated, one of the bevel gears 3 in the deflection transmission means K is rotated, and this is interlocked with this. Since the one bevel gear 2 rotates, the lever L disposed substantially parallel to the width direction of the tank T rotates. As a result, the drain valve device F is opened through the linkage means R such as a ball chain attached to the tip of the lever L with an appropriate connector 16, and drainage of the washing water is started.
[0019]
In the present invention, since the tip end of the lever L can be arranged at a position immediately above or near the drain valve device F, the linking means R can be brought into a substantially vertical state, and therefore the amount of rotation of the lever L can be increased. It is possible to accurately reflect the pull amount of the linkage means R. Therefore, for example, if a means 6 for limiting the amount of rotation of the bevel gears 2 and 3 is provided in the direction change transmission means K due to the difference in the rotation direction of the handle H and the lever L, depending on the rotation direction of the handle H. The amount of drainage of the washing water can be changed reliably by varying the amount of opening of the drain valve device F. That is, in the case where the operation handle is provided on the front face of the tank, the amount of washing water can be reliably switched.
[0020]
Here, an example of the drain valve device F1 to which the drainage mechanism D according to the present invention is applied will be briefly described with reference to FIGS. The drain valve device F1 is provided, for example, at the bottom of a flush water tank for flush toilets, and includes the fixture 22, the ball valve 26, and the switching valve member 60 as main components. The fixing bracket 22 has a cylindrical shape that is attached to the bottom of the tank via a packing 23 and a tightening nut 24, and a lower end portion serves as a drain port 21. Inside, a guide piece 22b and a valve seat guide 50 are provided, and a dish-shaped valve seat portion 22a is formed on the upper end side. In addition, an overflow pipe 25 is erected on the fixing bracket 22 in a continuous manner.
[0021]
The ball valve 26 seated on the valve seat portion 22 a of the fixing fitting 22 is fitted with the engaging piece 26 b at the upper end of the connecting projection 26 a projecting from the upper surface thereof into the engaging projection 58 provided at the bottom of the water receiving cup 51. Thus, by fitting the retaining ring 59, the water receiving cup 51 is detachably connected. Further, a guide rod 27 is suspended from the lower surface of the top, and the guide rod 27 is inserted through a guide piece 22 b provided in the fixing bracket 22 and a guide hole 50 a of the valve seat guide 50.
[0022]
The water receiving cup 51 is provided with a connecting portion 52 and a guide cylinder 53 on its side surface, and the guide cylinder 53 is externally fitted to the overflow pipe 55 so as to be movable up and down. A stopper member 66 is fitted on the upper end of the overflow pipe 55. An inclined portion 54 is formed on the bottom surface portion 51 a of the water receiving cup 51 at a position eccentric from the center, and a rectangular outflow hole 55 is formed in the inclined portion 54. Reference numeral 56 denotes a contact stopper piece. On the upper edge of the water receiving cup 51, a pair of rising pieces 57 having a shaft hole 57a are erected so as to face each other, and the rotating shaft 61 of the switching valve member 60 is supported by the shaft hole 57a.
[0023]
In the switching valve member 60, a guide cylinder portion 62 is suspended from the center portion of the rotation shaft 61, and a spindle 63 penetrating through the guide cylinder portion 62 and slidable up and down is always urged downward by a spring SP. It has been incorporated in the state. A rectangular valve body 64 is provided at the lower end of the spindle 63, and a chain hook 65 for locking the ball chain R is provided at the upper end.
[0024]
The switching valve member 60 is tiltable within the water receiving cup 51 with the rotation shaft 61 as a fulcrum, and the tilting direction is set to the front-rear direction of the tank. When the ball chain R is pulled toward the X side (rear side of the tank) in FIG. 10, it tilts like a virtual line (two-dot chain line) and maintains the outflow hole 55 open. It becomes discharge. On the other hand, when the ball chain R is pulled to the Y side (front of the tank) in FIG. Since it maintains, it will be in the state where water accumulated in the water receiving cup 51. As a result, since the descending speed of the ball valve 26 is increased by the weight of the water stored in the water receiving cup 51, the drainage time is shortened and a small amount of washing water is discharged.
[0025]
Thus, the above-described drain valve device F1 needs to move the switching valve member 60 in the front-rear direction of the tank in order to switch the amount of drainage. However, by applying the present invention, the drain valve device F1 can be operated even when an operation handle is provided in front of the tank.
[0026]
By the way, the embodiment of the present invention is not limited to the above. For example, the direction change transmission means K can be configured such that, in addition to the bevel gear, the rotation axis J of the handle H and the rotation axis L-1 of the lever L are connected by a coil spring. In addition, this invention does not prevent changing suitably according to the condition of implementation.
[0027]
【The invention's effect】
According to the drainage mechanism according to the present invention, since the tip of the lever can be positioned immediately above or near the drainage valve device, the linking means for connecting the lever and the drainage valve device can be in a substantially vertical state. Therefore, the change in the amount of rotation of the lever can be accurately reflected in the pulling amount of the linkage means, so that the washing water amount can be reliably switched between large and small.
[0028]
In addition, by operating the handle attached to the front part of the tank, the lever arranged almost parallel to the width direction of the tank can be rotated in the front-rear direction of the tank, so that the linking means is pulled in the front-rear direction of the tank. Therefore, the conventional drain valve device of the kind necessary for the opening / closing operation can be used as it is.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a schematic configuration of a drainage mechanism of a cleaning water tank according to the present invention.
FIG. 2 relates to an embodiment of a drainage mechanism for a washing water tank according to the present invention, and is a plan sectional view showing an operation handle, a lever, and a direction change transmission means.
FIG. 3 is a front view showing an embodiment of a drainage mechanism for a cleaning water tank according to the present invention, showing a lever and a direction change transmission means.
FIG. 4 is a cross-sectional plan view showing an operation handle, a lever, and a direction change transmission means, relating to a different embodiment of the drainage mechanism of the cleaning water tank according to the present invention.
FIGS. 5A and 5B are related to a conventional example, and FIG. 5A is a plan view of a toilet equipped with a washing water tank, and FIG.
6A and 6B relate to different conventional examples. FIG. 6A is a plan view of a toilet with a washing water tank mounted thereon, and FIG. 6B is a front view thereof.
FIG. 7 is a front sectional view showing a conventional drain valve device described in Patent Document 1 (Japanese Patent Laid-Open No. 10-131257).
FIG. 8 is an exploded perspective view showing a conventional drain valve device described in Patent Document 1 (Japanese Patent Laid-Open No. 10-131257).
FIG. 9 is a partially cutaway perspective view showing the internal structure of the water receiving cup in the conventional drain valve device described in Patent Document 1 (Japanese Patent Laid-Open No. 10-131257).
FIG. 10 is a side cross-sectional view showing an operation procedure of a switching valve member in a conventional drain valve device described in Patent Document 1 (Japanese Patent Laid-Open No. 10-131257).
[Explanation of symbols]
D ... Drainage mechanism F ... Drain valve device H ... Operating handle J ... Rotating shaft J-1 ... Square column K ... Diverting transmission means L ... Lever L-1 ... Rotating shaft S ... Toilet T ... Washing water tank 1 ... Housing 2,3 ... Bevel gear 4,5 ... Bearing

Claims (5)

A mechanism for draining water stored in a washing water tank, an operation handle that is rotatably attached to either the left or right side edge of the front portion of the outer surface of the tank, and an operating handle provided in the tank. A lever having a rotation shaft set so as to cross or conflict with the rotation shaft and rotatable about a longitudinal axis, a drain valve device provided at the bottom of the tank, the lever and the drain valve Linking means such as a chain for connecting the device so as to be capable of interlocking , and direction change transmission means for connecting the rotational shaft of the operation handle and the rotational shaft of the lever so as to be interlocked provided in the tank, A drainage mechanism for a cleaning water tank, wherein the lever is rotated in the front-rear direction of the tank via the direction change transmission means when the operation handle is rotated . Rotation axis of the front Symbol lever, the relative rotational shaft of the operating handle, draining of the washing water tank according to claim 1, wherein is connected so as to be substantially perpendicular through the deflection transmission means mechanism.   The drainage mechanism for a washing water tank according to claim 1 or 2, wherein the direction change transmission means is constituted by a bevel gear. The drainage mechanism of the washing water tank according to any one of claims 1 to 3, wherein a rotation shaft of the operation handle is configured to be slidable in an axial direction with respect to the deflection transmission means. The drainage mechanism of the washing water tank according to any one of claims 1 to 4, wherein a pivot shaft of the lever is configured to be slidable in an axial direction with respect to the deflection transmission means.

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