JP2502132Y2 - Low tank lever holding device - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lever holding device for a low tank attached to a flush toilet.

[0002]

2. Description of the Related Art Inside a low tank, a water supply means by a ball tap and a drainage means by a siphon pipe are built in, and an opening / closing operation member of an opening / closing lid for a lower opening of the siphon pipe is used as a holding member. An operation lever, which is movably held only and is used to externally operate the opening / closing operation member, is connected to the opening / closing operation member. In the case of a cold region, a holding means for opening the opening / closing lid is provided in order to hold the opening posture of the opening / closing lid by the operation lever.

This open holding means is essential for preventing the opening / closing lid from freezing when the flush toilet is not used for several days or longer. That is, when the flush toilet is not used for a long period of time, in order to prevent water from freezing in the tank, the water stopcock for water supply is closed and the opening / closing lid is opened to drain the water in the tank. If the opening / closing lid is closed, the above-mentioned opening / closing lid opening holding means is provided in order to avoid a situation in which the opening / closing lid is frozen to the opening under the siphon pipe and the flush toilet cannot be used immediately after the opening. It is provided. As an opening holding means for the opening / closing lid, for example, a ball moving mechanism similar to the pen tip moving mechanism of a knock type ballpoint pen is provided on the operation lever, while a holding member side for holding the opening / closing operation member of the opening / closing lid only in a rotatable manner To
There is a structure in which a recess is provided for locking the ball when the opening / closing lid is opened by the operation lever when the ball is projected by the ball retracting mechanism.

[0004]

However, the open holding means having such a structure has a complicated structure and is expensive, and when the normal use state is restored, that is, the water stop cock for water supply is opened. Also, if you forget the knocking operation to retract the ball when returning the operation lever that is held in the open state, the opening / closing lid will be held in the open state when you rotate the operation lever next time, and water will not be released. There was the inconvenience that the water could not be stored in the low tank because it was left flowing. Also, the bow
The operability of the operating lever may deteriorate due to the protrusion of the lever.
is there. An object of the present invention is to provide a lever holding device for a low tank, which can open and hold an opening / closing lid without the above-mentioned inconvenience, and which has a simple structure and is inexpensive.

[0005]

In order to achieve the above-mentioned object, the present invention comprises an opening holding means for the opening / closing lid as follows. In other words, a biasing means that locks and holds the pressing operation member movable only in the rotation axis direction of the opening / closing operation member over the predetermined range on the operation lever, and biases the pressing operation member outward in the predetermined range. And
Inner circumference of a cylindrical member connected to the outside of the holding member tank
The first locking portion is formed on the surface, and the tank side of the pressing operation member
The second locking portion is provided on the outer peripheral portion of the end portion of the leg protruding to
Push how pressing member by the opening operation of the lid by pushing operation and the operating lever of the pressing member
The first and second locking portions are locked in the direction perpendicular to the direction .

[0006]

According to the above characteristic construction, when the pressing operation member is pushed in and the opening / closing lid is opened by the operation lever, the inner peripheral surface of the cylindrical member connected to the outside of the tank of the holding member is formed.
Projected to the tank side of the pressing operation member and the formed first locking part
The second locking portion formed on the outer peripheral portion of the end portion of the
Corresponding to the open / closed state of the opening / closing lid, by locking the pressing operation member to each other in the direction perpendicular to the pushing direction and preventing the operating lever attached to the pressing operation member from rotating relative to the holding member. Held in a rotating position to
The open state of the open / close lid is maintained. Then, when the operation lever is returned, the locking of the first and second locking portions is released, and the pressing operation member is automatically returned to the original position by the urging means, so that the operation lever does not notice. When
Also returned to the form of reliably conventional cover opening and closing.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a drainage structure of a low tank. In FIG. 1, reference numeral 1 denotes a siphon tube having a drainage opening 2 formed on a lower side thereof, and an opening / closing lid (also called a rubber float) 3 for the opening 2. Is pivotally attached so that it can be vertically swung open and closed.

Reference numeral 4 denotes a holding device for an opening / closing lid operating lever 6 for opening / closing the opening / closing lid 3 outside the tank via a ball wedge 5, for example, as shown in FIG.
As also shown in FIG. 5, an opening / closing operation member 7 to which the ball wedge 5 is connected, a holding member 9 attached to the tank wall 8 and holding the opening / closing operation member 7 so as to be rotatable only about a horizontal axis, The operation lever 6 connected to the opening / closing operation member 7 for rotating the opening / closing operation member 7 outside the tank, and in the rotation axis direction of the opening / closing operation member 7 over a predetermined range with respect to the operation lever 6. Only the pressing operation member 10 movably locked and held, and the opening holding means 11 for holding the opening posture of the opening / closing lid 3 by the operation lever 6.

More specifically, the opening / closing operation member 7 is formed by insert-molding a metal L-shaped member 12 and a female screw member 13 into a resin rotation member 14, respectively. on the other hand,
The operation lever 6 is made of synthetic resin, and is provided with a face plate 16 in which a member 15 to be serrated and fitted to the female screw member 13 is continuously provided, and a through hole a is formed in the center thereof. The operation lever 6 is integrated with the opening / closing operation member 7 by fitting the mating member 15 into the female screw member 13 and screwing a screw b into the female screw member 13 through the through hole a.

The holding member 9 is made of synthetic resin, and a flange c that abuts the outer surface of the tank wall 8 is provided on one end side of the cylindrical male screw member 17, and the cylindrical member 18 is connected to the flange c. And is attached to the tank wall 8 by the nut e via the water blocking packing d. The pressing operation member 10 is also made of a synthetic resin, and a head 19 for pressing operation that enters the recessed space of the operation lever 6 has four legs 20 having a retaining hook f formed at the tip thereof. In addition to being continuously provided at intervals, two legs 21 each having a protrusion (which is a second locking portion to be described later) h in a state of being positioned between the two legs 20 are continuously provided.

On the other hand, the face plate 16 of the operation lever 6 is
Two arc-shaped openings i for passing the hooks f are formed by bending the legs 20 with respect to each of the two legs 20, and the legs are formed in each of the openings i. A recess j is formed to allow the projection h of the body 21 to pass therethrough, and the projection h is passed through the recess j of one opening i . Then, by inserting the hooks f of two on each opening i, pressing member 10 relative to the operating lever 6, the axial direction of the open <br/> closing operation member 7 that cotton in a predetermined range only movably (non-rotatably to the
To) that has become to be held. Reference numeral 22 is a biasing means composed of a coil spring, which biases the pressing operation member 10 outward within a predetermined range.

The opening holding means 11 for holding the opening posture of the opening / closing lid 3 is constructed as follows. That is,
When a portion of the inner peripheral surface of the tubular member 18 of the holding member 9 is rotated in the lid opening direction, the projection (second
(Locking portion) h comes into sliding contact with the leg body 21 to push the operation member 10.
A cam surface S that is elastically bent in a direction perpendicular to the closing direction is formed. Further, the cam surface S of the inner peripheral surface of the holding member 9
The second locking portion of the pressing operation member 10 when the pressing lever 10 is pushed against the biasing means 22 and the operation lever 6 is rotated to open the opening / closing lid 3. push-in direction and straight in the pressing member 10 a projection h is
The first locking portion m that engages in the angular direction is formed.

According to such a configuration, when the opening / closing lid 3 is opened by the operation lever 6 while pushing the pressing operation member 10 (the procedure is the same even if the procedure is reversed), as shown in FIG. The second locking portion h on the 6 side is elastically locked to the first locking portion m on the holding member 9 side, and the pressing operation is performed.
Rotation of the member 10 with respect to the holding member 9 and sliding in the axial direction
Is blocked. Therefore, the pressing operation member cannot rotate.
Rotation of the operating lever 6 attached to the ability is restricted
The open posture of the opening / closing lid 3 by the operating lever 6 is maintained. This prevents icing of the opening 2 of the opening / closing lid 3 when the flush toilet is not used for a long period of time in winter. On the other hand, when the operation lever 6 is returned,
The pressing operation member 1 for the first locking portion m of the holding member 9
The second operating portion h of 0 is released, and the pressing operation member 10 is automatically returned to the original position by the urging force of the urging means 22, so that the pressing operation member 10 and the holding member.
The rotation between 9 and 9 is free. Therefore, the pressing operation
The operating lever 6 that engages with the working member 10 in a non-rotatable manner also holds
It becomes rotatable with respect to the material 9, and the operation lever 6 is surely returned to the normal lid opening / closing mode without requiring any knocking operation for retracting the ball as in the conventional case.

As shown in FIG. 5, when the pressing operation member 10 is retained by the operation lever 6 so that the second engagement portion (projection) h is passed through the other opening i, the tip of the leg 21 contacts the end surface of the member n which projects into the fitting member 15, the intended operation of pushing pressing member 10 becomes impossible, when assembled in this way, constituting a main
Exactly without increasing the element, Mochiiruko the risk-free for areas cover unit 3 to the opening 2 of the siphon tube 1 is landed
It is configured to be able to do .

FIG. 6 shows the opening holding means 11 of another embodiment. In this embodiment, the second locking portion h by the recess is provided on the leg 21 side of the pressing operation member, while the protruding first locking portion m is provided on the cam surface S of the holding member 9 on the tubular member 18 side. Is forming. FIG. 7 shows an opening holding means 11 of still another embodiment. In this embodiment, while the cam surface S of the inner peripheral surface of the tubular member 18 of the holding member 9 is not machined, the pressing operation member 10 is assembled. The leg body 21 is bent so that the second engaging portion h continuous with the leg body 21 is urged and brought into contact with the inner peripheral surface of the tubular member 18, and the lid is opened by the operation lever. The second locking portion h is elastically locked to the first locking portion m.

[0016]

As described above, according to the lever holding device for a low tank according to the present invention, the pressing operation member is operated by one operation (or the reverse operation) of opening the opening / closing lid by the operation lever while pressing the pressing operation member. Press the movement of
The first and second in the direction perpendicular to the pushing direction of the pressure operation member
And the second locking portion, the rotation of the operation lever can be restrained accordingly, and the open state of the opening / closing lid is held. Then, when the operation lever is returned, the pressing operation member is automatically returned to the original position, and the operation lever does not require any knocking operation for retracting the ball as in the conventional case. It is possible to surely restore the normal state of opening and closing the lid, and it is possible to reliably eliminate the situation in which water is wasted. Moreover, as the open holding means, only the first locking portion is provided on the holding member and the second locking portion is provided on the pressing operation member, and the structure is extremely simple. Accordingly, with the holding-open means can be composed of inexpensive materials such as synthetic resin, it can not easily broken, it is of the lever holding device which solves at once conventional disadvantages now cut with low cost hand provide.

[Brief description of drawings]

FIG. 1 is a simplified perspective view showing a drainage section of a raw tank.

FIG. 2 is an exploded perspective view of a main part of a lever holding device.

FIG. 3 is a vertical sectional side view of a lever holding device.

FIG. 4 is a vertical plan view of the lever holding device with the lid opened.

FIG. 5 is a partial cross-sectional view showing another assembly mode of the lever holding device.

FIG. 6 is an explanatory view of an opening holding means of another embodiment.

FIG. 7 is an explanatory view of an opening holding means of still another embodiment.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Siphon tube, 2 ... Opening part, 3 ... Opening / closing lid, 6 ... Operation lever, 7 ... Opening / closing operation member, 8 ... Tank wall, 9 ... Holding member, 10 ... Pressing operation member, 11 ... Open holding means, 22 ...
Biasing means, h ... second locking portion, m ... first locking portion.

Claims (1)

(57) [Scope of utility model registration request] 1. An opening / closing operation member of an opening / closing lid for an opening on a lower side of a siphon tube in a low tank is rotatably held by a holding member mounted on a tank wall, and the opening / closing operation member is externally operated. A lever holding device for a low tank, comprising an operating lever for connecting the opening / closing operation member to the opening / closing operation member, and holding means for holding the opening posture of the opening / closing lid by the operation lever. A pressing operation member movable only in the rotational axis direction of the member is locked and held by the operation lever, and an urging means for urging the pressing operation member outward in a predetermined range is provided, and the holding member is provided. The members are connected to the outside of the tank
A first engaging portion is formed on the inner peripheral surface of the tubular member, and a second engaging portion is formed on the outer peripheral portion of the end portion of the leg body protruding toward the tank side of the pressing operation member.
It provided an engagement portion, the pressing operation by the opening operation of the cover with the operating lever to the pushing operation sequence <br/> of the pressing member
A lever holding device for a low tank, characterized in that the first and second locking portions are locked in a direction perpendicular to the pushing direction of the member .