JP2009100879A - Plunger - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a plunger capable of easily generating pressure necessary to eliminate clogging by enhancing adhesion to a toilet bowl. <P>SOLUTION: The plunger 1 includes a handle shaft 2 to be grasped by a user, and a cup member 4 attached to the end of the handle shaft 2. The cup member 4 is formed of an elastically deformable material, and includes a partially spherical first portion 4A located on the handle shaft 2 side and a cylindrical second portion 4B extending forward from the first portion 4A and having an opening 3 at the end. A flanged overhanging edge 5 overhanging in the outer peripheral direction is provided at a position between the first portion 4A and the second portion 4B. At least the front face 5A of the front and rear faces 5A and 5B of the overhanging edge 5 is flat, and the second portion 4B projects forward from the overhanging edge 5. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a water flow cup for eliminating clogging generated in a drain pipe of a Japanese style toilet or a Western style toilet.

Conventionally, when a drain pipe of a Japanese-style toilet or a Western-style toilet is clogged, a water passing cup is known as a tool for eliminating the clogging. This water-flowing cup is comprised from the handle | barrel for a user to hold | grip, and the cup member which consists of soft elastic materials and has opening at the front-end | tip.
In order to eliminate clogging of the drain pipe in the water-flowing cup, first, the rim of the cup member is pressed against the periphery of the drain outlet of the toilet, and then the handle bar is pushed and pulled to The cup member is elastically deformed. Then, a positive pressure and a negative pressure are generated in the drainage port due to the elastic deformation of the cup member, and this pressure acts in the drainage pipe through the drainage port. The clogging is eliminated by moving in the downstream direction.

  However, since the conventional water-flowing cup presses the tip edge of the cup-shaped cup member against the toilet as it is, the adhesiveness is poor and the pressure necessary to move the clogged foreign matter cannot be obtained. It took a lot of time and effort to reciprocate the handle, and it was not always convenient.

  On the other hand, Patent Document 1 discloses a structure in which an inclined wall surrounding the cup member is provided on the outer periphery of the cup member. The inclined wall protrudes from the outer periphery of the lip of the cup member and has a curved shape. The water-flow cup of Patent Document 1 is used by pressing the inclined wall around the toilet.

However, the water flow cup shown in Patent Document 1 is considered to be difficult to elastically deform because the inclined wall is curved, and it is difficult for the entire inclined wall to be in close contact with the periphery of the drain outlet.
Japanese Utility Model Publication No. 63-29496

  Then, the subject of this invention is providing the water flow cup which can generate | occur | produce easily the pressure required for the elimination of clogging by improving the adhesiveness with respect to a toilet bowl.

  In order to solve the above-described problems, according to the present invention, in a water-flowing cup comprising a handle bar for a user to hold and a cup member attached to the tip of the handle bar, the cup member is elastically deformed. It is made of a possible material, and is composed of a partial spherical first portion located on the handlebar side, and a cylindrical second portion extending forward from the first portion and having an opening at the tip. A flange-like protruding edge extending in the outer peripheral direction is provided at a position between the first part and the second part, and at least the front surface of the protruding edge is formed flat, and the first A water-flowing cup is provided in which two portions protrude forward from the overhanging edge.

  In the present invention, the second portion is gradually tapered, the cylindrical wall is curved toward the inside of the cup member, and the outer surface of the cylindrical wall and the front surface of the protruding edge are smoothly connected. It is desirable.

  Preferably, in the present invention, the overhang edge is formed in a substantially annular shape concentric with the cup member, and has a uniform thickness as a whole.

  Since the water-flowing cup of the present invention has high adhesion to the toilet bowl, the fluid pressure applied to the drain pipe can be easily increased.

  FIG.1 and FIG.2 shows one Embodiment of the water flow cup 1 which concerns on this invention. This water-flowing cup 1 is composed of a handle bar 2 for a user to hold and a cup member 4 attached to the tip of the handle bar 2 and having an opening 3 at the tip.

  The handle bar 2 is a long and narrow round bar made of a hard material such as synthetic resin or aluminum, and its length in the direction of the axis L is easy to perform a push-pull operation. As shown in FIG. 2, a connecting member 6 for connecting the handle bar 2 and the cup member 4 is attached to the tip of the handle bar 2. The connecting member 6 is a bottomed cylindrical member made of synthetic resin, aluminum, or the like, and has a male screw 7 on the outer periphery of the distal end portion, and an open base end portion is inserted into the handle bar 2. The tip portion having a bottom portion fixed by appropriate means such as bonding is screwed into the female screw 8 in the cylindrical mounting portion 4C of the cup member 4, whereby the handle bar 2 is connected to the connecting member. It is connected to the cup member 4 through 6.

  The cup member 4 is integrally formed of an elastically deformable material such as rubber or soft synthetic resin. The cup member 4 includes a first portion 4A having a partially spherical shape located on the handlebar 2 side, A cylindrical second portion 4B extending forward from the first portion 4A, and a flange shape formed so as to surround the outer periphery of the cup member 4 at a position between the first portion 4A and the second portion 4B. It is comprised with the overhang | projection edge 5 of this.

  The first portion 4A has a top surface 9 that curves in a convex shape toward the handle 2 and extends in the direction of the axis L at the top portion of the top surface 9, that is, at the center of the outer surface of the first portion 4A. The mounting portion 4C having a substantially cylindrical shape is formed. As shown in FIG. 2, the attachment portion 4C is formed thicker than the top surface 9 so that the handle bar 2 can be firmly attached, or a hard reinforcing cylinder is inserted therein. Due to this, the strength is increased. The female screw 8 is formed on the inner peripheral surface of the mounting hole 10 inside the mounting portion 4C.

  The second portion 4B is located concentrically with the first portion 4A, is formed in a tapered shape that gradually becomes smaller in diameter toward the opening 3 at the tip, and the cylindrical wall 11 is a cup member 4. It is formed in a shape curved toward the inside. Accordingly, the diameter of the opening 3 is smaller than the maximum diameter of the internal space of the cup member 4, that is, the inner diameter of the boundary portion between the first portion 4A and the second portion 4B. The thickness of the second portion 4B may be constant, but in order to easily cause elastic deformation on the tip side, it is desirable that the thickness is gradually reduced toward the tip side.

The overhang edge 5 is formed in the horizontal direction from the cup member 4, that is, orthogonal to the axis L, at the outermost portion of the cup member 4, that is, at the outer periphery of the boundary between the first portion 4 A and the second portion 4 B. It is formed so as to project in the direction to be. The overhang edge 5 has an annular shape, is located concentrically with the first portion 4A and the second portion 4B, and the ring width H from the inner peripheral end to the outer end is constant over the entire periphery. .
The front surface 5A and the rear surface 5B of the overhang edge 5 are each formed as a flat and smooth surface. On the other hand, the thickness of the overhang edge 5 may be constant from the inner peripheral edge to the outer terminal end, but in order to easily cause elastic deformation on the outer peripheral side, the outer peripheral side gradually becomes thinner. It is desirable that it be formed. In this way, when the outer peripheral side is thin, it is desirable that the front surface 5A is a plane orthogonal to the axis L, and the rear surface 5B is an inclined surface that is gradually inclined toward the front surface 5A toward the outer peripheral side.
The front surface 5A of the overhang edge 5 is smoothly connected to the cylindrical wall 9 of the second portion 4B via a curved surface.

  When the toilet cup having the above-described configuration is used to eliminate clogging of the toilet bowl, the cup member 4 is pressed against the drain outlet 22 of the toilet bowl 21, as shown in FIG. It is made to adhere to the wall part 23 around 22. At this time, the second portion 4B of the cup member 4 has a tapered cylindrical shape and can be elastically deformed. Therefore, the second portion 4B conforms appropriately to the caliber and shape of the drain outlet in various types of toilets, and at least The front end portion is securely fitted into the drain port. Further, the overhang edge 5 extends in a flange shape in the outer peripheral direction of the cup member 4, and the front surface 5 </ b> A is formed in a flat and smooth surface, so that the wall portion 23 around the drain port 22 is formed. The shape is smoothly elastically deformed following the shape, and the entire circumference is in close contact with the wall portion 23.

When the handle bar 2 is pushed and pulled in this state, the overhang edge 5 and the first portion 4A and the second portion 4B are elastically deformed while the overhang edge 5 is in close contact with the wall portion 23. A positive pressure and a negative pressure are generated in 2, and the pressure acts on the drain pipe 24, whereby the foreign matter 25 causing the clogging is sucked or pressed to be moved and the clogging is eliminated.
Thus, the water flow cup 1 is provided with the flange-shaped overhanging edge 5 on the outer periphery, and the second portion 4B is formed in a tapered cylindrical shape so as to protrude forward from the overhanging edge 5. Thus, the adhesion to the toilet 1 can be improved, and the clogging in the drain pipe 24 can be surely eliminated.

  In addition, in the said water flow cup 1, it can be used for both a Japanese style toilet and a Western style toilet.

  In the present embodiment, both the front surface 5A and the rear surface 5B of the overhang edge 5 are formed to be flat and smooth, but only the front surface 5A to be in close contact with the toilet 1 is formed to be flat and smooth. That's fine. Therefore, the rear surface 5B may have a rough surface or may be slightly curved.

It is a front view in an embodiment of a water flow cup concerning the present invention. It is sectional drawing in the AA line of the water flow cup of FIG. It is explanatory drawing of the use condition of the water flow cup of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Water flow cup 2 Handle bar 3 Opening 4 Cup member 4A 1st part 4B 2nd part 5 Overhang edge 5A Front surface 5B Rear surface 11 Cylindrical wall

Claims (3)

In a water-flowing cup composed of a handle bar to be gripped by a user and a cup member attached to the tip of the handle bar,
The cup member is formed of an elastically deformable material, and is a cylindrical part having a first part of a spherical surface located on the handlebar side, and extending forward from the first part and having an opening at the tip. The second part,
A flange-like projecting edge projecting in the outer peripheral direction is provided at a position between the first part and the second part, and at least the front surface of the projecting edge is formed flat at least among the front surface and the rear surface;
The water flow cup, wherein the second portion protrudes forward from the overhanging edge.   The second portion is gradually tapered, the cylindrical wall is curved toward the inside of the cup member, and the outer surface of the cylindrical wall and the front surface of the protruding edge are smoothly connected. The water flow cup according to claim 1.   3. The water passing cup according to claim 1, wherein the overhang edge is formed in a substantially annular shape concentric with the cup member and has a uniform thickness as a whole.

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