JP3538495B2 - Drain tap device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drain plug device for remotely opening and closing a drain plug such as a bathtub, a basin and a sink.

[0002]

2. Description of the Related Art As shown in FIG. 4, a conventional drain tap device is provided with a thrust lock mechanism 101 provided on a drain fitting 100 such as a bathtub, a basin or a sink as a drain tap opening / closing release operating device.
And a thrust lock mechanism 101 (opening / closing clutch mechanism) is connected to an operation unit provided at an upper edge of a bathtub, a basin, a sink or the like by a release wire 103, and drainage is performed by a push operation of the operation unit. The plug 101 is held in an open state and a closed state. However, this drain plug device is a drain fitting 10
0, a relatively large mechanical box with a built-in thrust lock mechanism 101 is provided, so that the water passage area of the drain port 104 is reduced due to the mechanical box, and the drainage efficiency is deteriorated. Was not. Further, the diameter of the bent portion of the release wire 103 toward the operation portion becomes small, and the frictional resistance of the bent portion increases when the core material slides inside the guide tube. However, there is a problem in that the device is easily damaged. Further, since the release wire 103 and other parts such as a plunger and an operation shaft for connecting the ends of the wire are directly connected to each other in the drainage fitting 100, the drainage plug is stepped on the drainage plug. When a large load is applied due to attachment or the like, there is a problem that the load is directly transmitted to the operation shaft and the like, causing damage such as bending of the operation shaft.

In order to solve the above-mentioned problems, the present applicant has developed a drain plug device having a thrust lock mechanism in an operation unit. As shown in FIG. 5, this drain plug device includes a locking tooth 202 integrally formed on an inner surface of an operation cylinder 201 of an operation unit 200, a fixed tooth 204 provided on an operation shaft 203, and a plan. A thrust lock mechanism 208 is formed by a rotary tooth 207 urged toward a locking tooth 202 by a spring 206 provided on the jar 205 and a spring 206 interposed between the plunger 205 and the bottom of the operation cylinder 201. Release wire 20 that connects one end to
9 and the plunger 205 are provided with a shock absorber 210. This drain plug device is
Because the thrust lock mechanism is provided on the operation unit side,
A large mechanical box with a built-in thrust lock mechanism occupies the drainage area of the drainage fitting and increases drainage capacity, like a conventional drainage plug device that supports the stopper lid with a thrust lock mechanism installed inside the drainage fitting. The worsening point and its mechanical box become vertically long inside the drainage fitting, the bending diameter of the connection end of the release becomes smaller, the sliding resistance of the core material is increased, and the operating force is increased, or the sliding resistance is increased. This not only eliminates the loss of durability of the core material and the guide tube, but also allows the shock absorber to buffer the load of stepping on the stopper and prevent buckling of the release and destruction of the thrust lock mechanism. it can.

[0004]

However, in addition to the repulsive force of the spring, the repulsive force of the shock absorber acts when the operating portion is operated, so that there is room for improvement in that the operation cannot be performed with a light force. ing.

The present invention has been made to solve the above-mentioned problems, and an object thereof is to provide a drain plug provided with a thrust lock mechanism in an operation tube of an operation section for connecting one end of a release wire. An object of the present invention is to prevent a shock absorbing force of a shock absorber for a release and a thrust lock mechanism from becoming a reaction force of a pushing operation.

[0006]

The technical means taken to achieve the above object is a drain plug device in which a thrust lock mechanism is provided in an operation cylinder of an operation section for connecting one end of a release wire. A lock mechanism is provided on a cylindrical movable locking portion which is vertically movable and non-rotatably inserted into the operation cylinder and has a locking tooth at an end on the forward side, and an operation shaft through which the movable locking portion is inserted. A fixed tooth provided, a rotating tooth provided on a plunger for connecting the core material of the release wire, which is advanced by the fixed tooth each time the operating shaft is pushed to lock and unlock the locking tooth, and A resilient device interposed between the operating cylinder and the rotating teeth to urge the rotating teeth toward the movable locking portion, with the movable locking portion interposed between the movable locking portion and the operating cylinder. Thus, a shock absorber facing the above-mentioned ammunition was provided.

According to the above technical means, each time a push operation is performed against the urging force of the ammunition, the rotating teeth advance through the fixed teeth and are locked to the locking teeth of the movable locking portion. The lock is released and the drain cock is opened and closed, and the shock absorber of the shock absorber that supports the movable locking part provided separately from the fixed and rotating teeth acts as a reaction force during operation. Do not let. Then, the load acting on the lid in the opened state is a rotating tooth,
The shock is absorbed by the shock absorber via the movable locking portion to avoid concentration in the release and the engagement portion between the rotating teeth and the locking teeth of the movable locking portion.

[0008]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a drainage plug device, in which one end of a release wire 1 is connected to an operation portion B and the other end is connected to a drainage portion C. For example, the opening and closing operation of a drain port of a bathtub is installed at an appropriate place where it is easy to operate. This is performed by remote control from the operation unit.

The release wire 1 is composed of a core 1A formed in a coil shape with a wire such as a steel wire, and a guide tube 1B slidably covering the core. The operation unit B is formed to the length necessary for communication.
And the drainage section C.

An operating part B connected to one end of the release wire 1 has an operating cylinder 3 axially penetrated and fixed to a mounting bracket 2 attached to an operating part installation surface, and an operating shaft protruding from the tip of the operating cylinder 3. 4 is slidably supported in the axial direction, and a spring 5 is provided in the operation cylinder 3 to constantly urge the operation shaft 4 to the retreating side. The thrust lock mechanism A for alternately locking and unlocking is accommodated, and the core 1A of the release wire 1 is fixed to the tip of the thrust lock mechanism A. By pressing the push button 6 fixed to the tip of the shaft 4, the drainage part C
Open / close switching.

A drain portion C connected to the other end of the release wire 1 has a guide tube 8 with the release wire 1 penetrated and fixed to a mounting bracket 7 attached to a bottom surface of a bathtub or the like. A movable shaft 11 to which a drain plug 10 that moves up and down to open and close a drain port 9 is slidably supported. The movable shaft 11 has a release wire 1 that communicates with an operation unit B.
The core member 1A which moves forward and backward by the operation of the operation part B moves the movable shaft 11 up and down, and opens and closes the drainage part C.

The thrust lock mechanism A accommodated in the operation section B is a mechanism used for putting in and out a pen tip such as a ball-point pen, and includes a fixed tooth 4A, a rotary tooth 4B, A spring S, a coil spring 5 attached across the operating cylinder and the rotating teeth, a movable locking portion D inserted into the operating cylinder 3 and engaging and disengaging the rotating teeth 4B;
It comprises a shock absorber E mounted over the operation cylinder 3 and the movable locking portion D.

The operation cylinder 3 is formed with a two-stage upper and lower through-hole 3A having an inner diameter from the retreat side end to the middle part larger than the inner diameter from the middle part to the forward end part. Two guide grooves 3C, 3C are provided along the axial direction from the end portion to the step portion 3B of the two-stage through hole on the inner periphery of the inner portion, and a hole through which the operation shaft slidably penetrates is provided at the retreat side end. Cover 3 provided
D is attached, and the movable locking portion D
, The shock absorber E is interpolated.

The movable locking portion D inserted into the operating cylinder 3 is formed in a cylindrical shape having a recess D1 in which the fixed teeth 4A and the rotating teeth 4B are slid in the axial direction, with the bottom on the axially retracted side.
A hole D through which the operating shaft slidably penetrates through the bottom of the concave portion D1.
2 and a convex portion D3 facing the guide groove of the operation cylinder is provided on the outer peripheral surface, and the convex portion D3 is provided with the guide groove 3C.
, The upper cylinder in the operation cylinder 3 can move up and down and cannot rotate. The slide toward the forward side is restricted by the stepped portion 3B of the operation cylinder 3, and is held toward the forward side by the shock absorber E. Further, a locking tooth D4 for engaging and disengaging with the rotary tooth 4B is provided at the forward end of the movable locking portion D, and a guide groove D5 for guiding the fixed tooth 4A and the rotary tooth 4B is provided on the inner peripheral surface of the concave portion D1. It is.

The fixed teeth 4A and the rotating teeth 4B are formed with saw teeth 4C.
Operating cylinder 3 and rotating teeth 4
B, and is held by a coil spring 5 that urges the movable locking portion D side, and the fixed teeth 4A are fixed to the distal end of the operating shaft 4 slidably inserted into the movable locking portion D, The engagement claw 4D is provided in the guide groove D5 in the movable locking portion D.
, And can move up and down with respect to the movable locking portion D and cannot rotate. The rotary teeth 4B are rotatably mounted on a plunger F that connects the core 1A of the release wire 1, and the engaging claws 4D engage with the guide grooves D5 of the movable locking portion 3, and the movable locking portion D The movable shaft D moves forward and backward to move up and down freely, and is moved forward by the fixed teeth 4A each time the operation shaft 4 is pushed to lock and unlock the movable teeth D with the locking teeth D4. Thus, it is held to the forward side by a spring S attached over the rotary teeth 4B and the plunger F.

The shock absorber E is constituted by a spring having a repulsive force stronger than the repulsive force of the coil spring 5, and has a retractable end face of the movable locking portion D and a cover 3 in the operation cylinder.
D is provided so as to surround the operation shaft 4.
In the present embodiment, the shock absorber E is constituted by a spring, but is not limited to a spring, and a member having a cushioning function such as elastic rubber may be used.

Therefore, when the operating shaft 4 is pushed to a predetermined position, the rotating tooth 4B is hooked on the tip of the locking tooth D4 in the movable locking portion D, and the operating shaft 4 is moved forward on the forward side. The drainage section C is locked and held in the open state. At this time, since the operation shaft 4 is slidably penetrated through the movable locking portion D, the repulsive force of the shock absorber E does not act on the operation shaft 4. Further, the movable locking portion D is urged backward by the repulsive force of the coil spring 5, but is held at a fixed position by the repulsive force of the shock absorber E. Next, when the operating shaft 4 is pushed to a position exceeding a predetermined position, the lock by the rotating teeth 4B is released, and the rotating teeth 4B are retracted to the retreating side by the repulsive force of the coil spring 5, and That state is maintained, and the drainage section C is maintained in the closed state.

When the drain section C is open, the drain plug 1
0, and a large load is applied to the plunger F, the load force is absorbed and reduced by the shock absorber E while pushing the movable locking portion D backward through the operation shaft 4. The mechanism A can be prevented from being broken.

[0019]

The present invention has the following effects by adopting the above-mentioned structure. Even if a large load is applied to the drain plug in the open state, the load can be absorbed by the shock absorber and the transmission to the thrust lock mechanism on the operating shaft side can be suppressed, preventing the thrust lock mechanism from being destroyed. it can. Moreover, since the repulsive force of the shock absorber does not act on the operation shaft, the shock absorber does not become a reaction force of the pushing operation, and it is possible to provide a drain plug device which can be pushed with a light force.

[Brief description of the drawings]

FIG. 1A is a longitudinal sectional front view of an embodiment of a drainage plug device according to the present invention, with a part thereof omitted. (B) The thrust lock mechanism part of the drainage plug device in (A) is shown, partially cut away.

FIG. 2 is a longitudinal sectional view showing a state in which a load is applied to a drain plug and the drain plug acts on a shock absorber.

FIG. 3 is a sectional view taken along the line (3)-(3) in FIG. 1;

FIG. 4 is a longitudinal sectional view showing a conventional drain section.

FIG. 5 is a longitudinal sectional view showing a conventional drain valve opening / closing release.

[Explanation of symbols]

A: Thrust lock mechanism B: Operation part D: Movable locking part E: Shock absorber F: Plunger 1:
Release wire 3: Operation cylinder 4: Operation shaft 4A: Fixed tooth 4B:
Rotating teeth

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-7-197503 (JP, A) JP-A-6-73835 (JP, U) JP-A-5-89751 (JP, U) JP-A-6-835 20564 (JP, U) JP 5-96171 (JP, U) JP 5-89570 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) E03C 1/12-1 / 33 F16K 31/46 H01H 13/56

Claims (1)

(57) [Claims] In a drainage plug device provided with a thrust lock mechanism in an operation tube of an operation portion which communicates one end of a release wire, the thrust lock mechanism is inserted into the operation tube so as to be vertically movable and non-rotatably and advance. A cylindrical movable locking portion provided with locking teeth at the side end, a fixed tooth provided on an operation shaft penetrating the movable locking portion, and a plunger for connecting the core material of the release wire. A rotating tooth, which is advanced by the fixed teeth each time the operating shaft is pushed and moved to perform locking and unlocking with a locking tooth, and is mounted between an operating cylinder and the rotating teeth, and the movable tooth is movable. A spring acting in the direction of pushing up to the locking portion side, wherein a shock absorber opposed to the spring is provided between the movable locking portion and the operation cylinder with the movable locking portion interposed therebetween. And drainage equipment.