JP2015071860A - Remote operation type drain plug device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a remote operation type drain plug device capable of preventing an inner wire from being broken even when an unexpected load is placed on a plunger supporting a drain plug lid.SOLUTION: A remote operation type drain plug device that opens and closes a drain port of a water tank by moving up and down a drain plug lid provided for the drain port includes: the drain plug lid, an action part which moves up and down the drain plug lid, an operation part, and a release wire which transmits an action of the operation part to the action part. The release wire comprises an inner wire 160b and an outer tube 160a, and the inner wire has a coating region 160b1 having its outer periphery covered with the outer tube, and an exposure region 160b2 provided at an end of the coating region and not covered with the outer tube. The inner wire moves to and away from the outer tube according to an operation of the operation part to transmit the movement of the operation part to the action part, and the exposure region serves as a reinforcement part by making the inner wire larger in rigidity than the coating region.

Description

  The present invention relates to a remote-operated drain plug device that opens and closes a drain of a water tank such as a bathtub or a wash bowl.

  A conventional remote-operated drain plug device has a drain plug lid that opens and closes a drain port, an operation button, a release wire that transmits the operation of the operation button to the drain plug lid, and a mechanism that transmits the movement of the operation button to the release wire. And an operating part with a plunger for transmitting the movement of the release wire to the drain plug lid. Here, the plunger is a member that receives the distal end of the inner wire of the release wire and detachably supports the drain plug lid at the distal end. And the drain plug device described in Patent Document 1 includes a plunger guide having a rigidity that surrounds the outer periphery of the exposed portion of the inner wire (core coil), in which the shock absorber spring is built into the plunger in the operating portion. It prevents buckling of the inner wire.

JP 2008-223453 A

However, according to the technique of Patent Document 1, since the inner wire is surrounded by a rigid plunger guide, if the raised drain plug lid is removed and the plunger is kicked up, the impact will occur. As a result, a lateral load is applied to the inner wire, and the plunger guide applies a load more than expected to the side of the inner wire, which may damage the inner wire.
An object of the present invention is to provide a remote-operated drain plug device that can prevent the inner wire from being damaged even when an unexpected load is applied to the plunger that supports the drain plug lid. And

  In order to solve the above-described problems, a remote-controlled drain plug device according to the present invention includes a drain plug lid, an operation unit that moves the drain plug lid up and down, an operation unit, and an operation unit that operates the operation unit. The release wire includes an inner wire and an outer tube, and the inner wire has a covering region whose outer periphery is covered with the outer tube, and both end portions of the covering region. An exposed region that is not covered with the outer tube, and the operation of the operation unit causes the inner wire to move forward and backward with respect to the outer tube, thereby causing the operation unit to move the operation unit. In the transmission, the exposed region is a reinforcing portion in which the rigidity of the inner wire is larger than that of the covering region.

According to this, even if the plunger is pushed back by stepping on the drain plug lid while the inner wire has advanced to the drain plug lid side, the force of returning the plunger is buffered by the shock absorber spring and transmitted to the inner wire. . Therefore, no excessive force is applied to the inner wire, and damage to the inner wire is suppressed.
In addition, the inner wire exposed from the outer tube is a highly rigid reinforcement, so even if a load is applied to the plunger with the shock absorber spring working, the inner wire is not covered with the outer tube. However, the buckling is suppressed by the returning force of the plunger.
Accordingly, it is possible to provide a drain plug device that suppresses damage to the inner wire and hardly breaks down.

  Further, according to the remote-operated drain plug device of the present invention, the exposed region is made harder than the covered region by heat-treating the end of the inner wire, so that the inner wire can be removed by a simple method. Stiffness can be increased.

  Further, according to the remote-operated drain plug device of the present invention, the operating part is a hollow body in which the outer tube is fixed to the lower part and the inner wire is inserted into the inner part from the lower part. A case having an opening, a hollow plunger which is housed inside the case, has the drain plug lid attached to the upper end, has a lower opening at the lower part, and moves up and down via the upper opening; A bottom plate having a cylindrical guard portion which is attached to the lower opening of the plunger and is slidable with respect to the inner wire; and the inner wire is inserted into the plunger so that the inner wire is connected to the drain plug. A shock absorber spring that cushions the inner wire when the plunger is pushed back from the state where it has advanced to the lid side, and the tip of the inner wire is covered with the shock absorber spring. The interior of the ranger can be moved back and forth along the guard portion, and the inner cylinder having an absorber receiving surface for receiving the shock absorber spring is inserted between the case and the plunger, and the plunger is inserted into the case. A return spring that can be pushed back to the inner wire, when the inner wire has advanced to the drain plug lid side and pushed the plunger, the plunger is loaded on the inner wire side, It is also preferable that the plunger and the bottom plate operate so as to be pushed back with respect to the inner wire without changing the relative position of the inner wire with respect to the outer tube.

  According to the present invention, there is provided a remote-operated drain plug device that can prevent the inner wire from being damaged even when an unexpected load is applied to the plunger that supports the drain plug lid. Is possible.

It is a schematic sectional drawing which shows the drain plug apparatus concerning one Embodiment of this invention. It is sectional drawing which shows the drain plug part of the drain plug apparatus shown in FIG. It is the perspective view which looked down at the drain outlet vicinity of the state which notched a part of bathtub and removed the drain plug lid 190 from diagonally upward. It is sectional drawing of the action | operation part by the side of a drain plug in the state which closed the drain plug. It is sectional drawing of the action | operation part by the side of a drain plug in the state which opened the drain plug. It is sectional drawing of the action | operation part by the side of the drain plug lid in the state which removed the drain plug lid and stepped on the plunger from the state of FIG.

Embodiments of the present invention will be described below with reference to the drawings.
FIG. 1 is a schematic sectional view showing a remote-operated drain plug device according to an embodiment of the present invention.
The drain plug device 100 includes a drain plug portion 100A attached to a drain outlet 210 provided in the bathtub 200 (water tank), and an operation portion 100B attached to a through hole 221 formed in the rim surface 220 of the bathtub 200. This is a remote-operated drain plug device in which the drain plug portion 100A and the operation portion 100B are connected by a release wire 160.

  The release wire 160 is disposed inside a hose 165 provided so as to connect the operation unit 100B and the drain plug unit 100A, and is configured such that the inner wire advances and retreats inside the outer tube.

  The operation unit 100B includes an operation button 150 and a function unit 162. The mechanism unit 162 functions to push the inner wire of the release wire 160 in the mechanism unit 162 every time the operation button 150 is pressed, and transmit the advance / retreat operation of the operation button 150 to the release wire 160. When the user releases the operation button 150, a return spring (not shown) that raises the pushed rod (not shown) is built in, and the operation button 150 is raised. Further, a thrust lock type latch mechanism (not shown) is built in the mechanism portion 162 so that each time the push button 150 is pressed, the push button 150 is alternately positioned at a high position and a low position. The drain plug lid 190 holds the drain port 210 at a position where the drain port 210 is closed and a position where the drain port 210 is opened.

Next, the drain plug portion 100A will be described.
FIG. 2 is a cross-sectional view showing the drain plug portion 100A, and FIG. 3 is a perspective view of the vicinity of the drain port in a state in which a part of the bathtub is cut away and the drain plug lid 190 is removed, obliquely looking down.
100 A of drain plugs attach the operation part 170 provided in the end of the release wire 160 to the support metal fitting 180 as a drain pipe member attached to the lower part of the drain outlet 210 of the bathtub 200, and a drain outlet is attached to the operation part 170 A drain plug lid 190 with a seal portion for closing 210 is attached. Then, when the operation button 150 provided on the operation unit 100B is pressed, the operation unit 170 raises and lowers the drain plug lid 190 via the release wire 160 to open and close the drain port 210.

  The operating part 170 has a cylindrical shape, and is attached to the support fitting 180 by the holding part 120 and the cylindrical pedestal 130. The cylindrical pedestal 130 is inserted into the flow path 181 of the support fitting 180, and is positioned by placing the bottom surface of the cylindrical pedestal 130 on the step portion 182 provided in the flow path 181. Further, the tightening nut 140 is screwed into the support metal 180 from above the cylindrical pedestal 130 inserted into the support metal 180. The tightening nut 140 does not move up and down the cylindrical pedestal 130 by being screwed into a female screw formed in the flow path of the support fitting 180 until the bottom surface of the tightening nut 140 contacts the upper surface of the cylindrical pedestal 130. Is restrained.

  Although not shown, one end of the hose 165 described above is attached to the support fitting 180.

Next, the operation part 170 will be described.
4 is a cross-sectional view of the working part on the side of the drain plug with the drain plug closed, FIG. 5 is a cross-sectional view of the working part on the side of the drain plug with the drain plug opened, and FIG. It is sectional drawing of the action | operation part by the side of the drain plug lid in the state which removed the drain plug lid made and stepped on the plunger.

  The operating unit 170 includes a case 171 with the outer tube 160a fixed to the lower part, a hollow plunger 172 that is housed in the case 171 and moves up and down, a bottom plate 173 that closes the lower part of the plunger 172, and an inner part. An inner cylinder 174 that covers the tip of the inner wire 160b and can advance and retreat inside the plunger 172, a shock absorber spring 175 inserted between the plunger 172 and the inner cylinder 174, a case 171 and a plunger 172 And a return spring 176 inserted between them.

  The case 171 has a hollow body shape in which the outer tube 160a is fixed to the lower part and the inner wire 160b is inserted into the inner part from the lower part, and has an upper opening 171a on the upper surface of the hollow body.

  The plunger 172 is housed inside the case 171, and a drain plug lid 190 is detachably attached to the upper end portion thereof. The lower portion 172 a has a lower opening 172 a, and moves up and down via the lower opening 172 a.

  The bottom plate 173 is attached to the lower opening 172 a of the plunger 172, closes the lower portion of the plunger 172, and houses the inner cylinder 174 in the plunger 172.

  The inner cylinder 174 is put on the tip of the inner wire 160b and advances and retreats together with the inner wire 160b. Further, a flange is formed at the lower end of the inner cylinder 174, and serves as an absorber receiving surface 174a for receiving the lower end of the shock absorber spring 175.

  The shock absorber spring 175 is inserted between the plunger 172 and the inner cylinder 174, and is buffered to the inner wire 160b when the plunger 172 is pushed back in a state where the inner wire 160b has advanced to the drain plug lid 190 side. Is done.

  The return spring 176 is inserted between the case 171 and the plunger 172. The return spring 176 can push the plunger 172 back into the case 171.

In addition, a heat treatment is performed on a tip region (exposed region 160b2) of the inner wire 160b that is not covered with the outer tube 160a. The inner wire 160b is made of, for example, stainless steel, and quenching and tempering are suitable as the heat treatment.
The exposed region 160b2 subjected to this heat treatment has a higher rigidity than the covered region 160b1 covered with the outer tube 160a, and the inner wire 160b is a reinforcing part that is not easily damaged by an external load. In addition, since a part of the inner wire 160b enters and exits from the outer tube 160a, the reinforcing portion is heat-treated only in a region that is not inserted into the outer tube 160a in order to ensure the manageability of the outer tube 160a. It is preferable to

  When the inner wire 160b has a spiral coil shape, the coils can be fused together by heat treatment to increase rigidity.

Next, the operation of the drain plug device will be described.
In a state where the drain plug lid 190 is lowered (see FIG. 4), when the operation button 150 of the operation unit 100B is pressed, the inner wire 160b advances toward the drain plug unit 100A and the inner cylinder 174, shock absorber spring 175, plunger 172. Then, the drain plug lid 190 is raised to open the drain outlet 210 (see FIG. 5), and the mechanism 162 holds the inner wire 160b at that position.

  When the operation button 150 is pressed again from this state, the mechanism unit 162 releases the holding of the inner wire 160b. Therefore, when the hand is released from the operation button 150, the inner wire 160b is returned to the operation unit 100B side. Accordingly, the drain plug lid 190 that has been lifted loses support by the inner wire 160b, is lowered by the return spring 176, and closes the drain port 210 (see FIG. 4).

  Here, the drain plug lid 190 can be attached to and detached from the plunger 172 of the operating portion 170. When cleaning the drain plug lid 190 and the drain outlet 210, the drain plug lid 190 can be removed from the plunger 172 with the drain plug lid 190 raised as shown in FIG. Since the tip of the plunger 172 with the drain plug lid 190 removed protrudes upward from the drain outlet 210, the plunger 172 may be accidentally stepped on or kicked off during operation. Then, an unexpected load is applied to the plunger 172 and attempts to push the plunger 172 downward. However, since the operation button 150 is not pressed, the latch mechanism of the mechanism portion 162 does not release the holding of the inner wire 160b. Therefore, the inner wire 160b cannot return, but the inner wire 160b does not move, and the plunger 172 and the bottom plate 173 integrated with the plunger 172 are pushed back downward. At that time, a load is applied to the inner wire 160b through the shock absorber spring 175 and the inner cylinder 174 due to the plunger 172 being pushed back, but the inner wire 160b in the case 171 is not covered by the outer tube 160a. Since it is the exposed region 160b2 and its rigidity is increased by heat treatment, it is possible to prevent damage even when a load is applied.

In this embodiment, even if the plunger 172 is pushed back by, for example, stepping on the drain plug lid 190 with the inner wire 160b advanced to the drain plug lid side, the force that the plunger 172 returns is buffered by the shock absorber spring 175. Is transmitted to the inner wire 160b. Therefore, an excessive force is not applied to the inner wire 160b, and damage to the inner wire 160b is suppressed.
Further, since the inner wire 160b exposed from the outer tube 160a is a highly rigid reinforcing portion, even if a load is applied to the plunger 172 with the shock absorber spring 175 working, it is covered with the outer tube 160a. It is suppressed that the inner wire 160b that has not been buckled due to the return force of the plunger 172.
This makes it possible to provide a drain plug device that suppresses damage to the inner wire 160b and is unlikely to fail.

  The embodiment of the present invention has been described above. However, the present invention is not limited to these descriptions. As long as the features of the present invention are provided, those skilled in the art appropriately modified the design of the above-described embodiments are also included in the scope of the present invention.

  Although this embodiment demonstrated the example which attaches the drain plug apparatus 100 to the bathtub 200, this invention is applicable also when attaching to a wash bowl. Moreover, although the bathtub 200 was illustrated and explained as the attachment target portion of the operation button 150, the upper surface of the counter adjacent to the bathtub 200 may be the attachment target portion of the operation button 150. Moreover, the attachment target part to which the operation button 150 is attached is not limited to a horizontal plane, and may be a vertical plane or an inclined plane.

100: Remotely operated drain plug device 100B: Operation unit 160: Release wire 160a: Outer tube 160b: Inner wire 160b1: Covered region 160b2: Exposed region 170: Actuating unit 171: Case 171a: Upper opening 172: Plunger 172a: Lower opening 173: Bottom plate 174: Inner cylinder 174a: Flange (absorber receiving surface)
175: Shock absorber spring 176: Return spring 190: Drain plug lid 200: Bathtub (water tank)
210: Drain outlet

Claims (3)

In the remote-operated drain plug device that opens and closes the drain port by moving the drain plug lid provided at the drain port of the water tank up and down,
The drain plug device includes a drain plug lid, an operation unit that moves the drain plug lid up and down, an operation unit, and a release wire that transmits the operation of the operation unit to the operation unit.
The release wire includes an inner wire and an outer tube,
The inner wire has a covered region whose outer periphery is covered with the outer tube, and an exposed region that is provided at an end of the covered region and is not covered with the outer tube,
The inner wire moves forward and backward with respect to the outer tube by the operation of the operation unit, and the movement of the operation unit is transmitted to the operation unit.
The remote-operated drain plug device, wherein the exposed region is a reinforcing portion in which the rigidity of the inner wire is larger than that of the covering region.   The remote-operated drain plug device according to claim 1, wherein the exposed region is made harder than the covered region by heat-treating the inner wire. The operating part is
A case where the outer tube is fixed to the lower part and the inner wire is inserted into the inner part from the lower part, and has an upper opening on the upper surface,
A hollow plunger that is housed inside the case, has the drain plug lid attached to the upper end, has a lower opening at the lower part, and moves up and down via the upper opening,
A bottom plate attached to the lower opening of the plunger and having a cylindrical guard portion slidable with respect to the inner wire;
A shock absorber spring inserted into the plunger and buffered to the inner wire when the plunger is pushed back from a state in which the inner wire has advanced to the drain plug lid side;
An inner cylinder having an absorber receiving surface that covers the tip of the inner wire and is capable of moving back and forth along the guard portion inside the plunger and receiving the shock absorber spring;
A return spring inserted between the case and the plunger to push the plunger back into the case;
With
When a load is applied to the plunger while the inner wire has advanced to the drain plug lid side and pushed the plunger, the relative position of the inner wire with respect to the outer tube does not change. The remote-operated drain plug device according to claim 2, wherein the plunger and the bottom plate operate so as to be pushed back with respect to the inner wire.

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