JPH086139Y2 - Actuator for drain plug - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an actuating device for remotely opening and closing a drain plug provided at the bottom of a bathtub, washbasin, or the like. More specifically, the present invention relates to improvement of the thrust lock mechanism incorporated in the drain plug actuating tool.

[0002]

2. Description of the Related Art In the bottom of a bath such as a bathtub or a washbasin, a drainage port is opened in the bottom wall, and a stopper lid for covering the drainage port is supported by an operating tool so as to be movable up and down. Is formed.

Actuators are, for example, Jitsuko Sho 60-22147 and Jyokai Sho.
As described in Japanese Patent Application No. 63-5074 (Japanese Utility Model Application No. 61-99738), a support shaft fixed to the lower part of the stopper lid is supported in the guide cylinder so as to be vertically movable, and A thrust lock mechanism including a fixed ring fixed to the support shaft, a rotary ring rotatable around the support shaft, and a guide groove formed in the guide cylinder is built in. In the thrust lock mechanism, as the support shaft alternates up and down, the rotating ring rotates slightly while falling by its own weight, thereby locking the rotating ring at the upper position or the lower position in the guide cylinder and The locking is released, and the support shaft is locked at one end side of its vertical movement path, and then the lock is released, thereby enabling continuous continuous vertical movement.

The support shaft is integrally formed of the same metal material as that of the stopper lid, but the guide tube, the fixed ring and the rotary ring have saw tooth teeth for enabling the above-mentioned alternate continuous vertical movement.
Due to the provision of the protrusions, guide grooves, etc., it is difficult to mold with metal, and it is integrally molded with synthetic resin in consideration of manufacturing cost and the like.

[0005]

However, according to the above-described conventional actuating device, since the rotating ring is made of synthetic resin, its own weight becomes relatively light. In addition, the above-mentioned guide cylinder has a lid integrally bonded to the upper end opening portion and a sealing material is arranged at the support shaft insertion portion to maintain the watertightness of the inside thereof, but with the long-term use Water stains adhere to the inside. Therefore, as a result of uncertain rotation of the rotating ring due to its own weight drop, the support shaft is locked and unlocked, that is, the lock lid is locked in the open state and then the lock is unlocked alternately. There was a risk that it would not be done reliably.

The present invention has been made to solve the above problems, and an object of the present invention is to ensure that the rotating ring is rotated by its own weight drop so that the stopper lid can be opened. An object of the present invention is to provide a highly reliable drain plug actuating device that can perform a smooth and reliable alternating continuous operation of state locking and unlocking at low cost.

[0007]

In order to achieve the above object, the drain plug actuating device of the present invention supports a support shaft fixed to the lower part of the plug lid in a guide tube so as to be vertically movable. ,
In the guide tube, a fixing ring fixed to the support shaft,
A built-in thrust lock mechanism consisting of a rotating ring rotatable around the support shaft and a guide portion formed in the guide cylinder was used to lock the support shaft at one end side of its vertical movement path. In a drain plug actuating device that enables alternating continuous vertical movement to release this lock,
On the inner circumference of the rotating ring in the thrust lock mechanism,
It is characterized in that it is integrally provided with a metal sleeve loosely fitted to the outside of the support shaft.

[0008]

When the rotating ring configured as described above is used, the weight of the rotating ring is increased as compared with the conventional ring made of only synthetic resin, and the rotating ring falls and rotates due to the vertical movement of the support shaft. As a result, the continuous continuous vertical movement of locking the support shaft at one end of its vertical movement path and then releasing this lock is performed more reliably and smoothly. Also, since the outer peripheral part of the rotating ring is made of synthetic resin as in the conventional case, it is easy to mold the serrated teeth, protrusions, etc. provided on the outer peripheral surface, and compared to the case where the rotating ring is integrally molded with a metal material. Molding is easy and costs are low.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a drain plug actuating device according to the present invention will now be described with reference to the drawings. A shown in FIGS. 1 and 2 is a drain plug installed at the bottom of a bathtub or the like, and a bottom wall b of the bathtub or the like.
The guide cylinder 1 is installed in the drainage port c opened in the above, and the support shaft 3 supporting the stopper lid 2 is inserted into the guide cylinder 1 so as to be able to move back and forth in the vertical direction. A drain plug actuating tool A, which is engaged with the thrust lock mechanism 4 provided in the above, is mounted, and the plug lid 2 is supported by the actuating tool A so as to be opened and closed.

In addition, a tubular support 5 is inserted at a remote position such as the upper edge surface d of the bathtub or the counter surface, and a lever 6 is vertically movably supported on the upper end side of the support 5.
Further, the base of the release 7 is connected to the lower end side, and the end of the sliding wire inside the release 7 is connected to the lower end of the lever 6 to form the operating portion e.

From the inner peripheral surface of the drainage port c, mounting pieces c1 and c1 are attached.
Is projected toward the center part of the drainage port c, and this mounting piece
A guide tube 1 is attached to c1 and c1.

The guide cylinder 1 includes a bottomed cylinder body 1a and a cylinder body 1a.
It is composed of two members, a lid 1b that hermetically closes the upper opening of 1a, and the cylinder body 1a and the lid 1b are integrally formed of a desired synthetic resin material (for example, polyacetal resin or the like). A pair of left and right mounting collars 1c, 1 is provided on the outer periphery of the upper edge of the cylinder body 1a.
c is projected integrally, and the mounting flanges 1c and 1c are attached to the above-mentioned mounting pieces c1 and c.
The guide tube 1 is held vertically by the center portion of the drainage port c by fastening the screw 8 to 1.

An insertion hole 1d is opened in the central portion of the lid 1b, and the support shaft 3 is slidably inserted in the vertical direction.
A packing 9 is attached to the inner circumference of 1d to keep it watertight, and a thrust lock mechanism 4 is assembled between the support shaft 3 and the guide cylinder 1 inside the cylinder body 1a, and then the cylinder body 1a and the lid body 1b. Glue them together.

The support shaft 3 is made of stainless steel or another desired metal material, and the stopper lid 2 is screwed onto the upper end of the support shaft 3 to be attached thereto. A packing 2a is attached to the outer peripheral portion of the lower surface of the stopper lid 2 so as to come into contact with and separate from the edge of the drainage port c. Also, the cylinder body 1a of the guide cylinder 1
The bottom wall is provided with a screw hole 1e, and the screw 7 is released into this screw hole 1e.
The lower end of the support shaft 3 and the tip of the release 7 are linked by screwing and connecting the plunger guide 7a at the front end.

The thrust lock mechanism 4 has a structure in which a fixed ring 10 and a rotary ring 11 on the support shaft 3 side and a guide portion 12 on the guide cylinder 1 side are engaged with each other. Since the basic structure and operation of the thrust lock mechanism 4 are well known from the above-mentioned conventional publications, etc., only the longitudinal sectional front view is shown in the drawings, and the fixed ring 10, the rotary ring 11, and the guide portion 12 are expanded for explaining the operation. Illustrations and their external views are omitted.

The fixing ring 10 is fixed to the support shaft 3, has serrated teeth 10a on the upper portion thereof, and has several protrusions 10 on its side portions.
have b. The rotating ring 11 is rotatably fitted to the support shaft 3 and has a serrated tooth 10 of the fixed ring 10 at a lower portion thereof.
a serrated tooth 11a matching a with several protrusions on its side
Have 11b. The guide portion 12 is formed on the inner peripheral surface of the guide cylinder 1, and has alternating guide grooves 12a and serrated teeth 12b into which the fixed ring 10 and the protrusions 10b, 11b of the rotary ring 11 are inserted. .

Therefore, the plunger 7b at the tip of the release 7 is
By pushing the support shaft 3 by means of, the support shaft 3 can be locked at one end of its vertical movement path and then released continuously by an alternating continuous vertical movement, and the release operation is performed by pushing down the operating portion e. The stopper lid 2 fixed to the upper end of the support shaft 3 can be opened and closed alternately via.

The fixing ring 10 is integrally molded using the same synthetic resin material as that of the guide cylinder 1 described above, such as polyacetal resin. The rotating ring 11 is integrally formed by inserting a metal sleeve 111, which is loosely fitted to the outer side of the support shaft 3, inside the outer peripheral portion 110 formed of the same synthetic resin material as that of the fixed ring 10. The outer peripheral portion 110 is integrally formed with the saw-toothed teeth 11a and several protrusions 11b.

In this way, the inner peripheral portion is made of the metal sleeve 11
According to the rotating ring 11 constituted by 1, the self-weight is increased as compared with the conventional rotating ring made of only resin, and the supporting shaft 3
As a result of the weight of the rotating ring 11 falling and rotating more smoothly due to the vertical movement of the support shaft 3, the support shaft 3 is locked at one end of its vertical movement path, and then the continuous vertical movement is released to release this lock. It will be done reliably and smoothly.

When the lever 6 of the operating portion e is pushed down from the water-stopped state shown in FIG. 1, the wire inside the release 7 slides to push up the support shaft 3. At this time, the rotating ring 11 rotates slightly with its serrated tooth 11a abutting on the serrated tooth 10a of the fixed ring 10. When the lever 6 is released, the rotating ring
The protruding portion 11b of the guide portion 11 engages with the serrated teeth 12b of the guide portion 12 and is locked at the upper position shown in FIG.
As a result of the contact with the upper surface of the rotating ring 11, the cap is opened to support the cap lid 2 at a position away from the drainage port c as shown in FIG.

Next, when the lever 6 is pushed down again, the release 7 pushes up the support shaft 3. At this time, the serrated tooth 11a of the rotating ring 11 abuts on the serrated tooth 10a of the fixed ring 10 and slightly rotates, and when the lever 6 is released, the protruding portion 10b of the fixed ring 10 has the guide groove 12a of the guide portion 12a. It descends by entering inside. Further, the rotating ring 11 has a serrated tooth 11a as a guide portion.
After abutting against the twelve serrated teeth 12b and rotating slightly, the protrusion 11b moves down into the guide groove 12a. as a result,
The stopper lid 2 closes the drainage port c and enters the closed state shown in FIG.

The slight rotation of the rotary ring 11 in the operation of the thrust lock mechanism 4 described above can be obtained by lowering the rotary ring 11 by its own weight when the support shaft 3 is lowered. By forming the inner peripheral portion with the metal sleeve 111 and increasing its own weight, its own weight can be dropped and rotated more smoothly, and the lock on the opening / closing side of the lid 2 and The alternating continuous operation for releasing the lock can be performed more reliably and smoothly.

In order to obtain the above-mentioned effects, it is conceivable that the entire rotary ring 11 is integrally formed of stainless steel or other metal material. In that case, the serrated teeth 11a and the protrusions are formed.
Needless to say, it is not realistic because the molding of 11b and the like is extremely difficult and the manufacturing cost increases.

[0024]

EFFECTS OF THE INVENTION Since the drainage plug actuating device of the present invention is constructed as described above, the weight of the rotating ring is increased as compared with the conventional ring made of only synthetic resin, and the vertical movement of the support shaft is accompanied. As a result of the rotating ring's own weight drop and smoother rotation, the support shaft is locked at one end of its vertical movement path, and then this lock is released. Will be done.
Also, since the outer peripheral part of the rotating ring is made of synthetic resin as in the conventional case, it is easy to mold the serrated teeth, protrusions, etc. provided on the outer peripheral surface, and compared to the case where the rotating ring is integrally molded with a metal material. Molding is easy and costs are low.

Therefore, it is possible to perform smoother and more reliable continuous operations of locking and unlocking the stopper lid in a smoother and more reliable manner, and for a highly reliable drainage stopper that is unlikely to deteriorate in operability due to long-term use. The actuator could be provided at a low cost.

[Brief description of drawings]

FIG. 1 is a vertical sectional front view showing an embodiment of a drain plug actuating device according to the present invention, showing a closed state.

FIG. 2 is a vertical sectional front view showing the opened state of FIG.

[Explanation of symbols]

A: Actuator a: Drain plug c: Drain port
e: operation part 1: guide tube 2: stopper lid 3: support shaft 4:
Thrust lock mechanism 7: Release 10: Fixed ring 11: Rotation ring
110: Peripheral part 111: Metal sleeve 12: Guide part

Claims (1)

[Scope of utility model registration request] 1. A support shaft fixed to the lower portion of the stopper lid is supported in the guide cylinder so as to be vertically movable, and in the guide cylinder,
A thrust lock mechanism including a fixed ring fixed to the support shaft, a rotating ring rotatable around the support shaft, and a guide portion formed in the guide cylinder is built in, and the support shaft is fixed by the thrust lock mechanism. A drain plug actuating device that locks at one end of a vertical movement path and then unlocks the lock, and enables continuous up and down movement alternately. An operating tool for a drain plug, which is integrally provided with a metal sleeve to be fitted.