JP2006307541A - Operation part of remote controllable drain plug device for bathtub - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an operation part of a remote controllable drain plug device for a bathtub, having a shock absorber mechanism for installing an opening-closing mechanism without making a malfunction in an operation cylinder constituted as a two-piece body by injection molding. <P>SOLUTION: An engaging object tooth 33a is forcibly rotated by engaging and guiding by receiving push-moving force of an operation button to an engaging tooth 23 of an operation cylinder inner surface. The operation cylinder is composed of the cylindrical two-piece bodies 1 and 2 installed in the attachable-detachable connection of mutual end parts by dividing in the longitudinal direction. Both divided bodies 1 and 2 are respectively formed of a synthetic resin integral mold, and the engaging tooth 13 is integrally arranged in one divided body 1 for arranging an operation shaft 8 so as to be capable of advancing and retreating. A tube applying part 5 is constituted so as to be installed by sandwiching a collar part 25 arranged on its peripheral edge in the connection. A shaft returning elastic mechanism 9 is stored in the one divided body 1, and a compression elastic mechanism 4 for a shock absorber is stored in the other divided body 2, respectively, and the engaging tooth 23 is integrally formed in the tube applying part 5. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an operation unit of a remote-operated drain plug device that opens and closes a drain plug by remote operation of a release wire, and more particularly to an operation unit of a remotely-operated drain plug device for a bathtub having a shock absorber mechanism.

Conventionally, the operation part of a remote-controlled drain plug device for a bathtub having a shock absorber mechanism is provided with an inner wire protruding from a release wire inserted from one end side into the operation part so that the operation part can advance and retreat from the other end side. A shock absorber that can be pushed by an operating shaft and surrounds a release wire across a hook-shaped receiving portion formed at the inner end of the outer tube in the operating portion and an operating portion closer to the drain plug than the hook-shaped receiving portion. It is possible to push the inner wire through the tube abutting part with the operation shaft by interposing a compression ammunition for use, abutting the saddle-shaped receiving part on a tube abutting part provided in the middle part of the operating part (For example, refer to Patent Document 1).
In this prior art, the operation cylinder is constituted by two parts divided in the length direction, and both parts are connected by mutual screw fitting.
Then, the shock absorber compression ammunition is inserted into a divided body different from the guide divided body that is provided so that the operation shaft can be moved forward and backward, and the tube abutting portion is sandwiched at the same time by connecting both the divided bodies by screw fitting. The hook-shaped receiving part provided at one end of the outer tube is positioned by the abutting part while receiving the urging force of the shock absorber for the shock absorber, and the axis returning compression ammunition is supported by the tube abutting part. Yes.
In this prior art, the operation button is accidentally pushed while the pressure is applied to the plug lid by stepping on it in the closed state, or a fallen object is dropped on the plug lid while the operation button is being pushed. When the inner wire loses the escape area without being pushed up due to the load applied by the And buckling deformation of the inner wire can be prevented.

By the way, a remote-operated drain plug device that uses a release wire as a transmission means regardless of the bathtub needs an opening / closing mechanism (thrust lock mechanism) that alternately opens and closes the drain plug.
This open / close mechanism has both a case where it is provided on the drain plug side and a case where it is provided on the operation unit side. When the open / close mechanism (thrust lock mechanism) is provided on the operation unit side, a wide drainage space for the drain port is ensured. be able to.
An opening / closing mechanism (thrust lock mechanism) is fixed to the operating shaft and has a fixing ring having engaging teeth, and a rotating ring having an engaged tooth provided on the operating shaft in series with the fixing ring and rotatable. A locking tooth provided on the inner surface of the operating cylinder is provided, and the rotating ring rotates by the engagement of the engaging tooth of the fixed ring and the engaged tooth of the rotating ring every time the operating shaft is pushed. Every time the engagement of the engaged tooth of the rotating ring with respect to the engaging tooth and the unlocking are repeated alternately, and when the engaging is released, the rotating ring is guided together with the fixing ring from the groove between the engaging teeth. A configuration in which the drain plug is opened and closed is common.
In this opening / closing mechanism, the rotating ring is guided by the guide groove between the serrated locking teeth each time it is pushed and rotated by the engaging teeth of the fixed ring when it exceeds the locking teeth. The engaged teeth of the ring slide and rotate, and the engaged teeth are engaged with the engaging teeth by the urging force of the shaft return compression ammunition, and the lock and unlock are alternately repeated.
However, if the surface tension is acting on the water that enters between the engaging teeth of the fixed ring and the engaged teeth of the rotating ring, or if the rotating ring is stuck to the scale, the rotating ring does not rotate in a predetermined sliding manner. There is a case where the thrust is not locked due to the reverse rotation without being locked to the teeth, and it is difficult to say that the accuracy is high.
The two-part body constituting the operation cylinder is preferably an integrally molded product (for example, an injection-molded product) in order to provide it at a low cost. The two-part body that is an integrally molded product is provided with an opening / closing mechanism that does not malfunction, and can be assembled. Needs some ingenuity.
Japanese Patent Laid-Open No. 2004-36079

The present invention has been made in view of the above-described conventional circumstances, and an object of the present invention is to provide an operation portion of a remotely operated drainage tap device for a bathtub provided with a shock absorber mechanism that does not cause a malfunction.
Another object is to provide an operation part for a remote-operated drainage tap device for a bathtub equipped with a shock absorber mechanism that is equipped with an open / close mechanism that does not malfunction in an operation cylinder that is composed of an injection-molded two-part body. There is to do.

  The technical means taken to solve the above problem is to push the inner wire protruding from the release wire inserted from one end side into the operation cylinder by the operation shaft provided to the operation cylinder so as to be able to advance and retreat from the other end side. A shock absorber capable of abutting a hook-shaped receiving part formed at the inner end of the outer tube in the operation part and urging the hook-shaped receiving part in the direction of the tube holding part. A thrust lock is installed in the operation cylinder in the operation part of the drain plug device in which the compression ammunition is installed in the operation cylinder and the inner wire is passed through the tube abutting part and communicated with the operation shaft. A thrust ring provided rotatably on the operation shaft and having engaged teeth on the front and rear surfaces of the operation shaft in the advancing and retreating direction, and the compression device for the shock absorber Is arranged around the tube abutting portion and urges the operating shaft to the other end side of the operating cylinder, and a shaft return ammunition provided in the operating cylinder, each time the operating shaft is pushed, An engagement tooth provided in a non-rotatable manner for rotating and rotating the rotating ring by engaging and engaging the engaged tooth on the surface opposite to the surface, and the engagement tooth provided opposite to the engagement tooth in the operation cylinder. A remote-operated drainage tap for a bath characterized by comprising a locking tooth that alternately repeats locking and unlocking of the engaged tooth on the surface on the other end each time the operating shaft is pushed It is an operation part of an apparatus (Claim 1).

  According to the above means, when the operation button is pushed, the operation shaft advances and the counter ring on the side opposite to the operation button (the surface opposite to the surface on the other end side) of the rotating ring that can rotate to the operation shaft is engaged. When the gear teeth are engaged and guided by the locking teeth on the inner surface of the operation cylinder to forcibly rotate and stop the pushing force, the operation button side (the surface on the other end side) receives the urging force of the shaft return ammunition. The engaged teeth are locked to the locking teeth on the inner surface of the operation cylinder, and the plug is in the open state. When the operation portion is pushed again, the engaged tooth on the counter-operation button side of the rotating ring is engaged and guided by the engaging tooth to forcibly rotate, and when the pushing force is stopped, the engaged tooth is now turned into the above-described state. Guided without being locked by the locking teeth, the rotating ring and the operating shaft are retracted to bring the plug into a closed state. This is repeated alternately each time the operation unit is pushed.

  In addition, the operation cylinder is divided into two in the length direction and assembled into two detachable connections assembled to each other by detachable connection between the ends, each of which is an integrally molded product of synthetic resin. The locking teeth are integrally provided on one divided body that is provided so that the shaft can be advanced and retracted, and the tube abutting portion provided on the periphery of the tube abutting portion is attached by the same connection. It is preferable to adopt a configuration in which the axis returning ammunition is accommodated in the divided body, the axis returning ammunition is accommodated in the other divided body, and the engaging teeth are integrally formed in the tube abutting portion (claim). Item 2).

According to this means, the operation cylinder is constituted by a two-part body divided in the length direction made of an integrally molded product (injection molding) of synthetic resin, and can be assembled by connecting the parts.
The locking teeth of the thrust lock mechanism are formed integrally with the upper half divided body.
A receiving rod that supports one end of a shock absorber compression ammunition is integrally formed in the lower half of the divided body.
An integrally molded product having both locking teeth and engaging teeth cannot be molded by inexpensive injection molding.
Therefore, when assembling both divided parts by connecting the open parts, the hook part is sandwiched and the tube abutting part is disposed, and at the same time, the hooked receiving part on the inner end of the outer tube that receives the urging force of the compression device for the shock absorber Is positioned with the tube abutting portion as an abutment surface, and engaging teeth integral with the tube abutting portion can be arranged at a predetermined position.

  The operation cylinder is attached to the bathtub, and the connection between the two divided bodies is screwed, the tube abutting portion is clamped by the two divided bodies, and the other in the two divided body connected state. A recessed portion that is inserted into the open portion of the divided body and guides the shaft return ammunition in a telescopic manner via a clearance, and is installed to be inserted into the open portion of the one divided body, It is preferable that the short cylindrical portion having the engaging teeth is integrally formed (Claim 3).

In this means, the clearance of the shaft return ammunition is largely avoided in the direction orthogonal to the inner wire, thereby preventing interference with the inner wire.
Further, the concave portion and the short cylindrical portion of the tube abutting portion are fitted and inserted into the open portions of the two divided bodies to form a guide portion, thereby facilitating the screwing operation between the divided bodies.

Since the present invention is configured as described above, it has the following advantages.
(Claim 1) Since the engaged teeth of the rotating ring are forcedly rotated by abutting the engaging teeth provided on the operating cylinder so as not to rotate with the operating force of the operating button, malfunction can be prevented.
(Claim 2) In addition, since the operating cylinder is formed of a two-piece body in the length direction made of an integrally molded product and the engaging teeth are formed integrally with the tube abutting portion, the moldability of the operating cylinder is improved. An opening / closing mechanism (thrust lock mechanism) can be installed without hindering.
(Claim 3) Further, the tube abutting portion has a recess (an ambulatory guide portion) to be inserted into one open portion of the divided body, and a short which has an engagement tooth and is inserted into the other open portion of the divided body. Since the tube part is integrated with the tube, the tube abutment has a spacer function to position the two split bodies coaxially when the two split bodies are connected by screw fitting. Easy to do.
In addition, the function of the concave portion (the bullet guide portion) prevents the metal return noise from being generated by rubbing the shaft return bullet with the inner wire.

  Next, an embodiment of the operation unit of the remote control drain tap device for a bathtub according to the present invention will be described with reference to FIGS. 1 to 5. In the drawings, symbol A is the operation unit.

As shown in FIG. 3, the operation unit A has an operation cylinder composed of two cylindrical division bodies 1 and 2 divided in the length direction, that is, in the vertical direction, as a casing, and on the upper edge surface (upper surface) B of the bathtub. The operation cylinder is attached vertically. Below, the cylindrical division body 1 is called an upper half part, and the cylindrical division body 2 is called a lower half part.
The upper half 1 is an integrally molded product (for example, made of polyacetal) by injection molding, and includes a latching rod 11 that is hooked and attached to the upper end portion of the upper edge surface B of the bathtub as a mounting surface, and the lower end portion. And a male screw 21 is screwed on the outer peripheral surface of the lower end thereof, and a locking tooth 13 of a thrust lock mechanism 3 as an opening / closing mechanism is integrally provided at an intermediate position on the inner surface. The male screw 21 is threaded after molding.

The lower half portion 2 is an integrally molded product (for example, made of polyacetal) by injection molding, and the upper half portion 1 includes a threaded cylinder 12 having a female screw 22 into which the male screw 21 is screwed. The upper half 1 and the lower half 2 are detachably connected by screwing the male screw 21 and the female screw 22 of the threaded cylinder 12 together. It is like that.
The lower half 2 is integrally formed with a receiving rod 32 that supports one end of the shock absorber compression ammunition 4 at the end opposite to the threaded cylinder 12.
The connection between the upper half 1 and the lower half 2 may be a snap fit or other structure.

When the upper half 1 and the lower half 2 are connected, the tube abutment 5 is sandwiched and incorporated.
As shown in FIG. 3, the tube abutment portion 5 includes a bullet machine guide portion 15 composed of a concave portion fitted into the open end inner peripheral surface of the lower half portion 2, and a lower half on the open edge of the bullet guide portion 15. A short cylindrical shape having a hooking collar 25 sandwiched when the part 2 and the upper half 1 are connected, and an engagement tooth 23 of the thrust lock mechanism 3 fitted to the inner peripheral surface of the upper half 2 at the tip. The part 35 is formed integrally with a synthetic resin, and a through hole 15 a of the inner wire 17 is opened at the center of the bottom of the bullet guide part 15.

One end of the drain plug release 7 connected to the operation part A and the drain part 6 is inserted into the inside from the lower end of the lower half part 2 and only the inner wire 17 is passed through the through hole 15a. The upper end of the outer tube 27 is connected to the inner end of the operating shaft 8 inserted from the upper end of the upper half 1 and the inner end of the outer tube 27 is brought into contact with the lower surface of the bullet guide 15. And a shock absorber compression ammunition 4 with the inner wire 17 as a center.
The operation shaft 8 is provided with an operation button 18 on the upper end side and a rotating ring 33 of the thrust lock mechanism 3 in the vicinity of the lower end side. On the other hand, the rotating ring 33 is advanced and retracted by being inserted from the side of the retaining rod 11.

A flange-shaped receiving portion 27 a is formed at the inner end of the outer tube 27.
As shown in FIG. 3, the flange-shaped receiving portion 27 a is a back surface on the outer tube main body 27 ′ (outer tube between the thick flange portions) side of the thick-walled flange portion 27 a ′ formed at the open end of the outer tube 27. A spring receiving seat plate 27a ″ that is externally fitted to the outer tube body 27 ′ is hooked.

  The thick collar portion 27a ′ is provided in a collar shape with a thickness of about 2 mm, and a claw portion protruding in a ring shape on the back surface of the spring receiving seat plate 27a ″ is bitten into the back surface and latched. The rigidity of the thick flange itself and the rigidity of the spring plate 27a "with a pawl that bites into and stabilizes the flange itself can be combined with one end of the shock absorber compression ammunition 4. It can be supported stably.

Further, the inner end of the inner wire 17 of the release wire 7 inserted from the lower end side of the lower half 2 is connected to the lower end of the operation shaft 8 so that the inner wire 17 can be pushed by the advancement and retraction of the operation shaft 8. The axis return ammunition 9 is interposed between the spring receiver 28 provided around the connecting portion and the bottom of the ammunition guide portion 15 formed of the concave portion.
As shown in FIG. 3, the shaft return ammunition 9 is loosely fitted with a clearance between the inner peripheral surface of the ambulance guide portion 15 having a concave portion on the lower end side.
This prevents the shaft return ammunition 9 from largely moving in the direction orthogonal to the inner wire 17 so that the shaft return ammunition 9 does not prevent the inner wire 17 from being prevented.

  In addition, the drainage part 6 which is the other end side of the release wire 7 connects the other end of the outer tube 27 to the lower end of the guide tube 26 installed in the wick of the drainage port 16 as well known. The support shaft 46 of 36 is inserted from the upper end side of the guide tube 26 so as to be able to advance and retract, and the support shaft 46 can be pushed on the other end side of the inner wire 17 entering the guide tube 26. (See FIGS. 1 and 2).

  As shown in FIG. 3, the thrust lock mechanism 3 includes engaged teeth 33a and 33a provided on a rotating ring 33 that is rotatable on the operation shaft 8, and engaging teeth integrally formed on the tube abutment portion 5. 23 and locking teeth 13 formed on the inner surface of the upper half 1.

  The rotating ring 33 forms engaged teeth 33a and 33a at intervals of 90 degrees on the front and rear surfaces of the operation shaft 8 in the forward and backward direction.

  Four engaging teeth 23 are formed by providing a drop groove 23b at an interval of 90 degrees in the short cylindrical portion 35 of the tube abutting portion 15 described above. Further, a drop groove 23c is provided at the intermediate portion, and the sawtooth portion 23a is integrally formed (see FIG. 5).

  The locking teeth 13 are formed with four guide grooves 13b of the engaged teeth 33a and 33a every 90 degrees on the side wall of the upper half 1, and the four locking teeth 13 are It is comprised by the sawtooth part 13a (refer FIG. 5).

Further, the engaged teeth 33a and 33a are formed in a substantially horizontal trapezoidal shape with the front and rear direction front and rear surfaces of the operation shaft 8 being inclined surfaces, and the engaged teeth 33a on the counter-operation button side are engaged. The teeth 23 are forcibly engaged with the serrated teeth 23 a of the teeth 23, and the engaged teeth 33 a on the operation button side are engaged with the serrated teeth 13 a of the engaging teeth 13.
The engaging teeth 23 and the locking teeth 13 are arranged to face each other so that the sawtooth portions 23a and 13a face each other.

Then, the rotary ring 33 is guided by the guide groove 13b against the urging force of the shaft return ammunition 9 by the pushing operation of the operation button 18, and the engaged tooth 33a on the counter-operation button side is engaged with the engagement tooth 23. Is engaged and forcibly rotated to face the upper open portion of the drop groove 23a, and the engaged teeth 33a on the operation button side are locked to the locking teeth 13 by releasing the pushing force, thereby closing the plug lid. 36 is raised and locked in the opened state (FIGS. 5A and 5B).
The drop groove 23b is a relief groove of the engaged tooth 33a when the operation button 18 is pushed too strongly. When the pushing force is released, the drop groove 23b reaches FIG.
Subsequently, when the operating button 18 is pushed, the engaged tooth 33a on the counter-operating button side is again engaged with the engaging tooth 23 by receiving an operating force and is forcedly rotated. When the pushing force is released, the engaged tooth 33a is engaged. 33a falls into the guide groove 33b and is guided to close the plug (FIGS. 5C and 5D).
The drop groove 23c is a relief groove of the engaged tooth 33a when the operation button 18 is pushed too strongly when the lock is released.

The operation part A of the remote-operated drain plug device for bathtubs configured as described above has the inner wire 17 moved to the operation part A side by the spring force of a return ammunition (not shown) on the drainage part 6 side when closing. By pushing, the operation shaft 8 and the operation button 18 are pushed to the return position (see FIG. 1). At this time, the shaft return ammunition 9 on the operation unit A side is in a fully extended state (see FIGS. 1 and 3A). When the operation button 18 is pushed in this state, the shaft return ammunition 9 on the operation portion A side and the return ammunition on the drainage portion 6 side are compressed, the inner wire 17 is lowered, and the other end side is raised to support the support shaft. 46 is raised and opened. The operation button 18 at the time of opening the plug is restored to a position slightly lower than that at the time of closing by the restoring force of only the axis return ammunition 9 on the operation unit side.
Then, the operation button 18 is accidentally pushed while the pressure is applied to the closure lid 36 by stepping on the closure state, or the closure lid 36 is being operated while the manipulation button 18 is being pushed. When a load is applied to the falling object M, as shown in FIG. 2, the shock absorber compression ammunition 4 is compressed and the outer tube 27 is brought close to both ends so that a margin for the inner wire 17 to escape is naturally created. The buckling deformation of the inner wire 17 is prevented without imposing a burden on the outer tube 27.
Further, since the engaged teeth 33a at the time of opening and closing are forced to rotate by receiving the pressing force of the operation button 18 and engaging with the engaging teeth 23, they are affected by surface tension and adhering scale. Without this, the thrust lock mechanism 3 can be operated smoothly.
The upper half 1 and the lower half 2 constituting the operation part A are screwed together during assembly. At this time, the machine guide part 15 of the tube abutment part 5 is inserted into the lower half 2. As a result, the short cylindrical portion 35 becomes a guide tube when the upper half 1 is screwed to the lower half 2 and facilitates the screw fitting operation (FIG. 3B).

In this embodiment, the four engaging teeth 23 and the locking teeth 13 with a 90 degree interval are described, but three with a 120 degree interval and a 180 degree interval. It is also possible to make two things with a gap. By reducing the number of teeth, the diameter of the operation cylinder can be reduced to make it compact.
Further, the mounting surface of the operation portion of the present invention is not limited to the upper edge surface of the bathtub, but may be an apron.

FIG. 3 is a front view showing a use state of the operation portion of the remote-operated drain plug device for a bathtub of the present invention. It is a front view showing the operating state of the operation part when the operation button is pushed while the fallen object is on the stopper lid, and shows the movement of the drain plug release. It is front sectional drawing of the operation part which is a principal part, (a) is a plugged state, (b) shows the assembly | attachment state which screw-fits an upper cylindrical division body with respect to a lower cylindrical division body. The perspective view of a rotation ring. FIG. 4 is a development view showing the relationship between engaged teeth, engaging teeth, and locking teeth of a thrust lock mechanism, where (a) shows a state where the engaged teeth are forcibly engaged with the engaging teeth and rotated (b). Is the state where the engaged teeth are locked to the locking teeth and opened, (c) is again the state where the engaged teeth are forcibly engaged and rotated by the engaging teeth, and (d) is the engaged state. The state in which the teeth are dropped into the guide groove and closed is shown.

Explanation of symbols

A: Operation part 7: Release for drain plug 8: Operation shaft 17: Inner wire 27: Outer tube 27a: Spear-shaped receiving part 18: Operation button 4: Compression absorber for shock absorber 5: Tube contact part 9: Shaft return bullet Machine 15: Concave part (ammunition guide part) 6: Drainage part 1, 2: Divided body (upper half part, lower half part) 23: Engagement tooth 33a, 33a: Engagement tooth 13: Locking tooth 35: Short Cylindrical part 25: collar part (clamping collar part)

Claims (3)

  An inner wire protruding from a release wire inserted from one end into the operation tube can be pushed by an operation shaft provided to the operation tube so as to be able to advance and retreat from the other end side, and a tube abutting portion provided in the middle of the operation tube A shock absorber compression ammunition that abuts the hook-shaped receiving portion formed at the inner end of the outer tube in the operation portion and urges the hook-shaped receiving portion toward the tube abutting portion in the operation cylinder, In the operation part of the drain plug device that is connected to the inner wire through the tube abutting part so as to be pushed by the operation shaft, a thrust lock mechanism is provided in the operation cylinder, and the thrust lock mechanism is connected to the operation shaft. A rotating ring that is rotatably provided and has engaged teeth on the front and rear surfaces of the operating shaft in the advancing and retreating direction, and the compression device for the shock absorber are arranged with the tube abutting portion interposed therebetween. Shaft return ammunition that urges the other end of the operation cylinder, and the engaged teeth on the opposite side of the other end surface each time the operation shaft is pushed provided in the operation cylinder. A non-rotating engaging tooth for rotating the rotating ring by guiding the engagement, and a surface on the other end side each time the operating shaft is pushed and provided opposite to the engaging tooth in the operating cylinder. The operation part of the remote-operated drainage tap apparatus for a bathtub characterized by comprising locking teeth that alternately repeat locking and unlocking of the engaged teeth.   The operation cylinder is divided into two in the length direction and assembled with a detachable connection between the end portions of each other, and both the divided bodies are each integrally molded products of synthetic resin, and the operation shaft is The locking teeth are integrally provided on one of the divided bodies provided so as to be able to advance and retreat, and the tube abutment portion is attached so as to be sandwiched and attached by the same connection, The shaft return ammunition is accommodated in the other divided body, and the engagement teeth are integrally formed in the tube abutting portion. Operation part of remote-controlled drain plug device for bathtub.   The operation cylinder is attached to the bathtub, and the connection between the two divided bodies is screwed, the tube abutting portion is clamped by the two divided bodies, and the other divided body in the two divided body connected state A recessed portion that is inserted into the open portion of the shaft, and guides the shaft return ammunition in a telescopic manner via a clearance, and is arranged to be inserted into the open portion of the one divided body, and the engagement end at the extended end. The operation portion of the remote-operated drain plug device for a bathtub according to claim 2, wherein the operation portion is integrally provided with a short cylindrical portion having a tooth.

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