JP6980176B2 - Operation device - Google Patents

Description

The present invention relates to an operating device, and more particularly to an operating device that operates a drain valve arranged in a washing water tank by rotating a handle.

As shown in Patent Document 1, it is an operating device of a flush toilet, a handle rotatably arranged outside the wash water tank, and includes a stopper protruding from the base of the handle toward the wash water tank. A rotating shaft guide having a stopper that limits the rotation range of the handle by contacting the handle and the stopper of the handle, and a stopper of the handle and a stopper of the rotating shaft guide that are arranged on the outside of the wall surface of the washing water tank. An operating device is known that comprises a cover that covers the outer periphery of the area in which the toilet is arranged.

The cover of the operating device of such a flush toilet is required to be thin in order to further improve the design.

Japanese Unexamined Patent Publication No. 2017-166163

However, when the length of the stopper of the rotary shaft guide protruding toward the handle is shortened in order to reduce the thickness of the cover of the operating device, there arises a problem that the durability of the stopper of the rotary shaft guide is lowered. Further, since the stopper of the handle comes into contact with the base of the stopper of the rotary shaft portion guide, there arises a problem that the durability of the stopper of the rotary shaft portion guide is further lowered. Further, in particular, when the stopper of the handle is made of metal and the stopper of the rotary shaft guide is made of resin, the problem that the durability of the stopper of the rotary shaft guide is lowered becomes more remarkable.

Therefore, the present invention has been made to solve the above-mentioned problems of the prior art, and the durability can be improved even if the length of the guide-side stopper protruding toward the handle is shortened. It is an object of the present invention to provide an operating device capable of reducing the thickness of the cover covering the outer periphery of the area where the handle side stopper and the guide side stopper are arranged.

In order to achieve the above object, the present invention is an operating device for operating a drain valve arranged in the washing water tank by rotating the handle, and the handle is rotatably arranged outside the washing water tank. The handle is provided with a handle-side stopper that protrudes from the base of the handle toward the wash water tank, and is connected to the handle and arranged through the wall surface of the wash water tank to rotate the handle. A rotation transmission unit that rotatably supports the rotation transmission unit, a cylinder portion that rotatably supports the rotation transmission unit inside, and a cylinder portion that rotatably supports the rotation transmission unit. A guide side that is formed so as to protrude toward the handle from a cylindrical portion arranged on the outside of the washing water tank of the portion, and limits the rotation range of the handle by abutting with the handle side stopper of the handle. An area in which the rotation transmission unit guide including the stopper, the handle side stopper of the handle, and the guide side stopper of the rotation transmission unit guide are arranged outside the wall surface of the washing water tank. The guide-side stopper of the rotation transmission portion guide has a cover covering the outer periphery of the cylinder portion, and the outer diameter portion larger than the outer diameter of the cylindrical portion arranged outside the washing water tank of the cylindrical portion. It is characterized by being formed to have.
In the present invention configured as described above, a cover is provided that is arranged on the outside of the wall surface of the washing water tank and covers the outer periphery of the area where the handle-side stopper of the handle and the guide-side stopper of the rotation transmission portion guide are arranged. The guide-side stopper of the rotation transmission portion guide is formed so as to have a portion having an outer diameter larger than the outer diameter of the cylindrical portion arranged on the outside of the washing water tank of the cylindrical portion. As a result, when the handle-side stopper of the handle and the guide-side stopper of the rotation transmission portion guide come into contact with each other, the stress applied to the guide-side stopper can be dispersed and reduced. Therefore, according to the present invention, the durability can be improved even if the length of the guide-side stopper protruding toward the handle is shortened, and the outer periphery of the area where the handle-side stopper and the guide-side stopper are arranged is covered. The thickness of the covering cover can be reduced. Therefore, the design of the cover arranged on the outside of the wall surface of the washing water tank can be further improved.

In the present invention, the handle is preferably made of metal, and the rotation transmission guide is made of resin.
In the present invention configured as described above, when the handle is made of metal and the rotation transmission portion guide is made of resin, the stress applied to the guide-side stopper can be dispersed and reduced. Therefore, even when the guide side stopper is made of resin, the length of the guide side stopper protruding toward the metal handle can be shortened and the durability can be improved, and the handle side stopper and the guide side can be improved. The thickness of the cover covering the outer periphery of the area where the stopper is arranged can be reduced. Therefore, the design of the cover arranged on the outside of the wall surface of the washing water tank can be further improved.

In the present invention, preferably, the radial width of the guide-side stopper of the rotation transmission portion guide is larger than the radial width of the cylindrical portion of the cylindrical portion.
In the present invention configured as described above, since the radial width of the guide-side stopper is larger than the radial width of the cylindrical portion of the cylindrical portion, the stress applied to the guide-side stopper is further dispersed and reduced. At the same time, the durability of the stopper on the guide side can be further improved.

In the present invention, preferably, the guide-side stopper of the rotation transmission unit guide forms a hollow space.
In the present invention configured as described above, when the guide-side stopper of the rotation transmission unit guide is made of resin, it is possible to suppress the formation of a cavity inside the guide-side stopper of the molded body, and the strength of the guide-side stopper is suppressed. Can be suppressed from decreasing. Therefore, it is possible to provide a stronger and more reliable guide-side stopper.

In the present invention, preferably, the guide-side stopper of the rotation transmission portion guide is formed in a fan shape so as to extend to the outside of the outer diameter of the cylindrical portion of the cylindrical portion.
In the present invention configured as described above, the guide-side stopper is formed in a fan shape so as to extend outward from the arc shape of a part of the cylindrical portion of the cylindrical portion. This makes it difficult to concentrate stress between the guide-side stopper and the cylindrical portion of the cylindrical portion, and the stress applied to the guide-side stopper can be dispersed and reduced.
Further, the guide-side stopper is formed in a fan shape symmetrical in the circumferential direction even in a region outside the outer diameter of the cylindrical portion of the cylindrical portion. As a result, it is possible to perform the function of limiting both the rotation direction of the handle and the rotation direction of the other. Further, it is possible to secure the same rotation range of the handle as when the outer diameter of the stopper on the guide side is not increased.
Further, even when the rotation direction of the handle is reversed, for example, when the handle is changed from the left handle to the right handle, the handle side stopper of the right handle is brought into contact with the fan-shaped guide side stopper. The rotation of the handle can be limited to a similar rotation range.

In the present invention, preferably, the guide-side stopper of the rotation transmission portion guide has a contact region that abuts at least a part of the handle-side stopper on the outside of the outer diameter of the cylindrical portion of the cylindrical portion.
In the present invention configured as described above, since the guide-side stopper has a contact region that abuts at least a part of the handle-side stopper on the outside of the outer diameter of the cylindrical portion of the cylindrical portion, the guide-side stopper is applied to the guide-side stopper. The stress can be further reduced.

In the present invention, preferably, the guide-side stopper of the rotation transmission portion guide is a stretched portion formed up to the radial outside of the cylindrical portion of the cylindrical portion and connected to the radial outer surface of the cylindrical portion. I have.
In the present invention configured as described above, the stretched portion can increase the region where the guide-side stopper and the cylindrical portion of the cylindrical portion are connected, and the stress applied to the guide-side stopper can be further dispersed. It can be reduced. Further, the strength of the guide-side stopper can be increased, and the durability of the guide-side stopper can be further improved.

Next, the present invention is a washing water tank device provided with the above operating device.
In the present invention configured as described above, it is possible to provide a washing water tank device provided with an operating device capable of reducing the thickness of the cover.

Next, the present invention is a flush toilet equipped with the wash water tank device.
In the present invention configured as described above, it is possible to provide a flush toilet equipped with an operating device capable of reducing the thickness of the cover.

According to the operating device of the present invention, durability can be improved even if the length of the guide-side stopper protruding toward the handle is shortened, and the outer circumference of the area where the handle-side stopper and the guide-side stopper are arranged can be improved. The thickness of the cover covering the cover can be reduced.

FIG. 3 is a perspective view showing a state in which a toilet seat and a toilet lid are removed in a flush toilet to which a flush water tank device provided with an operation device according to an embodiment of the present invention is applied. It is a front sectional view which shows the internal structure of the washing water tank apparatus provided with the operation apparatus by one Embodiment of this invention. It is an exploded perspective view of the operation device by one Embodiment of this invention. It is a side view which shows the operation apparatus by one Embodiment of this invention from the side. It is a central sectional view which shows the internal structure of the operation apparatus in the state which the operation apparatus by one Embodiment of this invention is attached to the wall surface of a washing water tank. It is a perspective view which shows the 1st protrusion part and the 2nd protrusion part of the handle of the operation device by one Embodiment of this invention. It is a perspective view which shows the guide side stopper of the rotation transmission part guide of the operation apparatus by one Embodiment of this invention. FIG. 6 is a cross-sectional view taken along line VIII-VIII of FIG. 4 when the handle is in the initial position. It is sectional drawing along the IX-IX line of FIG. 4 when the handle is in the rotation end position.

Next, the operating device of the washing water tank device according to the embodiment of the present invention, the washing water tank device provided with the operating device, and the flush toilet bowl provided with the washing water tank device will be described with reference to the accompanying drawings.
First, with reference to FIG. 1, a water-washing toilet bowl to which a washing water tank device provided with an operating device according to an embodiment of the present invention is applied will be described.
FIG. 1 is a perspective view showing a state in which a toilet seat and a toilet lid are removed in a flush toilet to which a flush water tank device provided with an operation device according to an embodiment of the present invention is applied. Hereinafter, in the description of the embodiment of the present invention, the front side is the front side when viewed from the user side using the flush toilet (the user standing in front of the flush toilet to use the flush toilet). The explanation is that the back side is the rear side when viewed from the user, the right side of the flush toilet is the right side when viewed from the front, and the left side is the left side when viewed from the front.

As shown in FIG. 1, reference numeral 1 is a so-called siphon-type flush toilet that sucks in the filth in the bowl portion by using the siphon action and discharges it to the outside at once from the drain trap pipe. Reference numeral 1 comprises a toilet bowl body 2 made of earthenware, and the toilet bowl portion 2 is formed with a bowl portion 4 and a drain trap pipeline 6 communicating with the lower portion of the bowl portion 4, respectively.
At the upper edge of the bowl portion 4 of the toilet bowl body 2, a first discharge that discharges wash water supplied from an inwardly overhanging rim 8 and a headrace 9 formed inside the rear side of the toilet bowl body 2. A water port 10 is formed, and the washing water discharged from the first water discharge port 10 descends while swirling to wash the bowl portion 4.

Below the bowl portion 4, a reservoir portion 12 whose reservoir surface is indicated by the chain line W0 is formed. An inlet 6a of the drain trap pipeline 6 opens below the reservoir portion 12, and the drain trap pipeline 6 behind the inlet 6a is an underfloor drain pipe (not shown) via a drain socket (not shown). Not shown) is connected.
Further, a second spout port 14 for discharging the washing water supplied from the headrace 9 formed inside the rear side of the toilet bowl body 2 is formed at a position above the water reservoir surface W0 of the bowl portion 4, and the second spout port 14 is formed. 2 The washing water discharged from the water discharge port 14 is adapted to generate a swirling flow that swirls the pooled water of the pool portion 12 in the vertical direction.

A washing water tank device 16 for storing the washing water supplied to the toilet body 2 is provided on the upper surface on the rear side of the toilet body 2.
In this embodiment, an example in which the washing water tank device 16 is applied to the above-mentioned siphon type flush toilet will be described, but the present invention is not limited to such a siphon type flush toilet, and the head of water in the bowl portion is described. It can also be applied to other types of flush toilets, such as so-called flush toilets, which flush away filth by the action of running water.

Next, the washing water tank device 16 will be described with reference to FIG.
FIG. 2 is a front sectional view showing an internal structure of a washing water tank device provided with an operating device according to an embodiment of the present invention. In FIG. 2, the full water level and the dead water level of the washing water tank 18 are shown by WL and DWL.
The washing water tank device 16 includes a washing water tank 18 for storing washing water for washing the washing stool 1, and a drain port 20 communicating with a headrace 9 of the stool main body 2 is provided at the bottom of the washing water tank 18. It is formed so that the washing water in the washing water tank 18 is supplied to the headrace 9 of the toilet body 2.

The wash water tank device 16 has a wash water supply device 22 which is a wash water supply device for supplying wash water from a water supply source into the wash water tank 18, and a drain port 20 for the wash water stored in the wash water tank 18. It includes a drain valve device 24 that is opened and drained to the headrace 9 of the toilet body 2, and an operating device 26 that is attached to the upper part of the side wall 18a that is the left wall surface of the washing water tank 18.

The drain valve device 24 is arranged in the washing water tank 18. Since the configuration of the drain valve device 24 is the same as the configuration of the conventional drain valve device, a specific description is omitted, but the drain valve device 24 is a so-called direct-acting drain valve device, and is a drain valve device. The chain 30 described later in 24 is connected to the drain valve (valve body) of the drain valve device 24, and the amount of movement of the chain 30 in the vertical direction is the amount of movement of the drain valve of the drain valve device 24 in the vertical direction. It is designed to correspond. By rotating the handle 28, the chain 30 is interlocked to pull up the drain valve of the drain valve device 24 so that the drain valve is activated, and the supply of wash water to the flush urinal 1 is started and drainage is performed. The mouth 20 is opened for a predetermined time, and a certain amount of the washing water in the washing water tank 18 is discharged to the headrace 9 of the toilet body 2.

Next, the details of the operating device 26 according to the embodiment of the present invention will be described with reference to FIGS. 2 to 8.
FIG. 3 is an exploded perspective view of the operating device according to the embodiment of the present invention, FIG. 4 is a side view showing the operating device according to the embodiment of the present invention from the side, and FIG. 5 is a side view according to the embodiment of the present invention. It is a central sectional view which shows the internal structure of the operation apparatus in the state which the operation apparatus is attached to the wall surface of the washing water tank, and FIG. FIG. 7 is a perspective view showing a protrusion, FIG. 7 is a perspective view showing a guide-side stopper of a rotation transmission unit guide of the operating device according to the embodiment of the present invention, and FIG. 8 is FIG. 4 when the handle is in the initial position. It is sectional drawing along the line VIII-VIII of.

The operating device 26 acts on a handle 28 that is rotatably arranged outside the washing water tank 18 and a force that returns the handle 28 to the standby position when the user performs a rotational operation of the handle 28. A spring (not shown) that causes the handle 28, an arm member 32 that is a rotation transmission unit that transmits the rotation of the handle 28 to the inside of the washing water tank 18, and the arm member 32 and the drain valve device 24 are connected and moved by themselves. A chain 30 that opens and closes a drain valve (not shown) of the drain valve device 24, a rotation transmission portion guide 34 that rotatably supports the arm member 32, and a handle 28 that is formed so as to cover the mounting base of the handle 28. It includes a cover 36 arranged between the side wall 18a of the washing water tank 18 and a nut 38 for fixing the rotation transmission portion guide 34 to the washing water tank 18.

In the operating device 26, the arm member 32 connected to the handle 28 is rotated by performing a rotation operation in the direction of pulling the handle 28 toward the front side, and the chain 30 attached to the tip of the arm member 32 is pulled up and the chain is pulled. A mechanism for physically pulling up the drain valve of the drain valve device 24 to which the 30 is connected is formed.

The handle 28 is connected to the arm member 32 at the central portion of the handle 28. The handle 28 is a handle for the left side attached to the side wall 18a on the left side of the washing water tank 18, and a handle portion 28a for the user to rotate with fingers or the like is formed. The handle 28 rotates the arm member 32 by the user holding the handle portion 28a and rotating it so as to pull it toward the front side. The handle 28 may be a right handle attached to the side wall 18b on the right side of the washing water tank 18.

As shown in FIG. 6, the handle 28 has a first protrusion 40 which is a handle-side stopper protruding from the base of the handle 28 toward the washing water tank 18, and similarly from the base of the handle 28 toward the washing water tank 18. It is provided with a second protrusion 42 which is a handle-side stopper that protrudes. The handle 28 is made of metal, but may be made of resin. As will be described later, since the guide side stopper 46 is extended to the outside in the radial direction, the first protrusion 40 and the second protrusion 42 may be arranged radially outside the position corresponding to the brim portion 48. can.

As shown in FIG. 2, the arm member 32 is connected to the handle 28 and is arranged so as to extend from the outside to the inside of the washing water tank 18 through the rectangular opening 18c formed in the side wall 18a. .. The arm member 32 is arranged horizontally in the left-right direction of the washing water tank 18. The arm member 32 is formed in a rod shape and is bent in two stages in the middle. The arm member 32 is fitted to the handle 28 outside the wash water tank 18 and is connected to the chain 30 at the hook-shaped portion 32a inside the wash water tank 18. By making the arm member 32 made of metal, it can be formed with high durability and robustness.

As shown in FIG. 5, the cover 36 is arranged on the outside of the side wall 18a of the washing water tank 18, and the first protrusion 40 or the second protrusion 42 of the handle 28 and the guide-side stopper 46 of the rotation transmission portion guide 34 are provided. It is formed so as to cover the outer periphery of the area where and is arranged. The thickness T of the cover 36 corresponds to the length of the cover 36 extending in the left-right direction of the washing water tank 18, and corresponds to the distance at which the handle 28 protrudes from the wall surface of the side wall 18a. By reducing the thickness T of the cover 36, it is possible to prevent the user from giving the impression that the handle 28 protrudes from the side wall 18a, so that the design of the cover 36 and the total design of the cover 36 and the handle 28 can be improved. For example, it is possible to improve the aesthetic appearance given to the user. Since the cover 36 is formed so as to cover the first protrusion 40 or the second protrusion 42 of the handle 28 and the guide-side stopper 46 of the rotation transmission portion guide 34, the thickness H1 of the guide-side stopper 46 (see FIG. 7). ) Can be reduced to reduce the thickness T of the cover 36.

As shown in FIGS. 2 and 3, the nut 38 is screwed onto the outer peripheral surface of the rotation transmission unit guide 34 inside the cleaning water tank 18, and the side wall 18a of the cleaning water tank 18 is connected to the rotation transmission unit guide 34 described later. The rotation transmission unit guide 34 is fixed to the washing water tank 18 so as to be sandwiched between the brim portion 48 and the rotation transmission portion guide 34.

As shown in FIG. 7, the rotation transmission portion guide 34 has a cylindrical portion 44 that rotatably supports the arm member 32 inside, and a handle when the handle 28 is rotationally operated and when the handle 28 is not rotationally operated. A guide-side stopper 46 that limits the rotation range of the handle 28 by abutting on the first protrusion 40 or the second protrusion 42 of 28 is provided. The rotation transmission unit guide 34 is made of resin.

The cylindrical portion 44 has a brim portion 48 which is a cylindrical portion arranged outside the washing water tank 18, a penetrating portion 50 penetrating the opening 18c of the side wall 18a, and a slope from the back surface of the brim portion 48 toward the penetrating portion 50. It is provided with a rib 51 extending in a shape. The brim portion 48 has the same as the cylindrical portion 44 and its central axis. The brim portion 48 forms the tip portion of the cylindrical portion 44 on the handle 28 side. The brim portion 48 has an outer diameter larger than the outer diameter of the penetrating portion 50 of the cylindrical portion 44. The cylindrical portion arranged on the outside of the washing water tank 18 is not limited to the shape of the brim portion 48, and the outer diameter thereof may be substantially the same as the outer diameter of the penetrating portion 50. When the nut 38 tightens the rotation transmission portion guide 34, the rib 51 is crushed between the brim portion 48 and the side wall 18a to position the rotation transmission portion guide 34 at an accurate position with respect to the washing water tank 18. It can be fixed by suppressing rattling.

The guide-side stopper 46 is formed so as to project from the brim portion 48 of the cylindrical portion 44 toward the handle 28. The guide-side stopper 46 is formed so as to have a portion having an outer diameter D2 (outer diameter from the central axis C) larger than the outer diameter D1 (outer diameter from the central axis C) of the brim portion 48. The guide-side stopper 46 is formed in a fan shape so as to extend to the outside of the outer diameter of the brim portion 48 of the cylindrical portion 44. The radial width W1 of the guide-side stopper 46 is larger than the radial width W2 of the brim portion 48 of the cylindrical portion 44. The thickness H1 from the brim portion 48 of the guide-side stopper 46 corresponds to the length extending in the left-right direction of the washing water tank 18 of the guide-side stopper 46, and is shorter than the thickness of the conventional guide-side stopper 46. The thickness H1 from the brim portion 48 of the guide side stopper 46 is larger than the thickness H2 of the brim portion 48.

The guide-side stopper 46 comes into contact with the first protrusion 40 in the first contact region (not shown) of the first side surface 54 thereof. The first side surface 54 and the first protrusion 40 are in contact with each other in a plane in the first contact region so as to prevent only the tip of the first protrusion 40 from coming into contact with each other. Further, the guide-side stopper 46 comes into contact with the second protrusion 42 in the second contact region 58 of the other second side surface 56. The second side surface 56 and the second protrusion 42 abut in a plane in the second abutment region 58 so as to prevent only the tip of the second protrusion 42 from abutting. Therefore, by bringing the handle 28 and the rotation transmission portion guide 34 closer to each other, only the tip of the first protrusion 40 or the tip of the second protrusion 42 abuts on the corner portion 46a of the base of the guide-side stopper 46. It is possible to prevent the stress from being concentrated on the corner portion 46a and damaging or cracking the guide-side stopper 46.

As described above, the guide-side stopper 46 has a first contact region, which is a contact region that abuts at least a part of the first protrusion 40 on the outside of the outer diameter D1 of the brim portion 48. Further, the guide-side stopper 46 has a second contact region 58, which is a contact region that abuts at least a part of the second protrusion 42 on the outside of the outer diameter D1 of the brim portion 48. By arranging the abutting region outside the brim portion 48, the stress applied to the guide-side stopper 46 can be reduced. Further, the strength (durability) of the guide-side stopper 46 can be improved while maintaining the rotation range of the handle 28 from the first contact region to the second contact region 58.

The guide-side stopper 46 includes an extension portion 46b formed to the radial outer side of the brim portion 48 and connected to the radial outer surface of the brim portion 48. Further, the guide-side stopper 46 forms an arc-shaped and columnar hollow space 52. The hollow spaces 52 are formed so as to be concentrically arranged in the radial direction.

The operating device 26 according to the embodiment of the present invention is an operating device in which the handle 28 for the left side is attached to the side wall 18a on the left side of the washing water tank 18 so that the user can easily operate it mainly by the left hand. May be an operating device in which the handle 28 for the right side is attached to the side wall 18b on the right side of the washing water tank 18 so that the device can be easily operated mainly by the right hand. In this way, even when the rotation direction of the handle 28 is reversed, for example, when the handle 28 is changed from the handle for the left side to the handle for the right side, the first side surface 54 and the first side surface 54 of the fan-shaped guide side stopper 46 By abutting the first protrusion 40 and the second protrusion 42 of the handle 28 on the two side surfaces 56, the rotation of the handle 28 can be limited to the same rotation angle range.

Next, the operation (action) of the operating device according to the embodiment of the present invention will be described with reference to FIGS. 1, 2, 8 and 9.
FIG. 9 is a cross-sectional view taken along the line VIII-VIII of FIG. 4 when the handle is in the rotation end position.
First, according to FIGS. 1, 2, 8 and 9, in a washing water tank device provided with an operating device according to an embodiment of the present invention and a flushing toilet to which the washing water tank device is applied, the operating device 26 is used. The state in which the cleaning operation is executed will be described.

As shown in FIG. 8, in the initial state before the user starts the operation of the handle 28, the handle 28 is in the initial position and is stopped, and the first protrusion 40 of the handle 28 is the guide side stopper 46. It is in contact with the first side surface 54 of the above. As shown in FIG. 2, the hook-shaped portion 32a at the tip of the arm member 32 is in a downward standby position (initial position), and a drain valve (not shown) connected to the chain 30 closes the drain port 20. It is in a state of being. At this time, the initial water level in the washing water tank 18 is the full water level WL.

When the user starts the operation of the handle 28 in order to perform the cleaning operation, as shown by the arrow A1, the user rotates the handle 28 so as to pull it toward the front, thereby causing the hook-shaped portion 32a of the arm member 32. Rotates in the direction of arrow A1 about the axis of the arm member 32. Therefore, the chain 30 is pulled up by the hook-shaped portion 32a, the drain valve is raised, and the drain port 20 is opened. As a result, the washing water in the washing water tank 18 is drained from the drain port 20 toward the headrace 9 of the toilet bowl main body 2, and the toilet bowl is washed.

When the user rotates the handle 28 so as to pull it toward the front, the second protrusion 42 is rotated as shown by the arrow A2. As shown in FIG. 9, when the user rotates the handle 28 by a predetermined angle, the second protrusion 42 comes into contact with the second side surface 56 of the guide-side stopper 46. The handle 28 is at the end of rotation position. Therefore, the rotation of the handle 28 is stopped, and the rotation angle of the handle 28 can be limited to a predetermined range. That is, the pull-up height of the drain valve can be specified to a predetermined height, and the maximum amount of washing water used for one toilet bowl cleaning can be specified to a predetermined amount.

The second protrusion 42 abuts on the second contact region 58 of the second side surface 56 of the guide-side stopper 46. The guide-side stopper 46 is formed so as to have a portion having an outer diameter D2 larger than the outer diameter D1 of the brim portion 48. As a result, when the second protrusion 42 of the handle 28 and the guide-side stopper 46 come into contact with each other, the stress applied to the guide-side stopper 46 can be dispersed and reduced. Further, since at least a part of the second protrusion 42 abuts on the guide-side stopper 46 in the second contact region 58 extending outward from the outer diameter D1 of the brim portion 48, the stress applied to the guide-side stopper 46 is further increased. It can be reduced.

When the user releases the handle 28 or rotates the handle 28 so that the user returns the handle 28, the handle 28 returns to the initial position as shown in FIG. At this time, the first protrusion 40 comes into contact with the first contact region of the first side surface 54 of the guide-side stopper 46. Also at this time, when the first protrusion 40 and the guide side stopper 46 come into contact with each other, the first protrusion 40 touches the guide side stopper 46 in the same manner as the action of the guide side stopper 46 and the second protrusion 42. The stress is dispersed and reduced.

In the present embodiment, the operation device 26 connects the arm member 32, which is a rotation transmission unit that transmits the rotation of the handle 28 to the inside of the washing water tank 18, and the arm member 32 and the drain valve device 24. An arm-type operating device including a chain 30 for opening and closing a drain valve (not shown) of the drain valve device 24 by its own movement is configured, but in other embodiments, the operating device 26 comprises. , The rotation transmission unit that transmits the rotation of the handle 28 to the inside of the washing water tank 18, the rotation transmission unit and the drain valve device 24 are connected, and the drain valve of the drain valve device 24 is drained by its own movement (not shown). It may be composed of a wire-type operating device including a wire for opening and closing. For example, the rotation transmission unit is composed of a gear for transmitting rotation, a pulley for pulling up a wire, and the like.

As described above, according to the operating device 26 according to the embodiment of the present invention, it is arranged on the outside of the side wall 18a of the washing water tank 18, and is on the guide side of the first protrusion 40 of the handle 28 and the rotation transmitting portion guide 34. A cover 36 is provided to cover the outer periphery of the area where the stopper 46 is arranged, and the guide-side stopper 46 of the rotation transmission portion guide 34 is a brim portion which is a cylindrical portion arranged outside the washing water tank 18 of the cylindrical portion 44. It is formed so as to have a portion having an outer diameter larger than the outer diameter of 48. As a result, when the first protrusion 40 of the handle 28 and the guide-side stopper 46 of the rotation transmission portion guide 34 come into contact with each other, the stress applied to the guide-side stopper 46 can be dispersed and reduced. Therefore, according to the configuration of the present embodiment, the durability can be improved even if the length of the guide-side stopper 46 protruding toward the handle 28 is shortened, and the first protrusion 40 and the guide-side stopper 46 The thickness of the cover 36 that covers the outer periphery of the area where the is arranged can be reduced. Therefore, the design of the cover 36 arranged on the outside of the side wall 18a of the washing water tank 18 can be further improved.

Further, according to the operation device 26 according to the embodiment of the present invention, when the handle 28 is made of metal and the rotation transmission portion guide 34 is made of resin, the stress applied to the guide side stopper 46 is dispersed and reduced. be able to. Therefore, even when the guide-side stopper 46 is made of resin, the length of the guide-side stopper 46 protruding toward the metal handle 28 can be shortened and the durability can be improved, and the first protrusion can be improved. The thickness of the cover 36 that covers the outer periphery of the area where the portion 40 and the guide-side stopper 46 are arranged can be reduced. Therefore, the design of the cover 36 arranged on the outside of the wall surface of the washing water tank 18 can be further improved.

Further, according to the operating device 26 according to the embodiment of the present invention, the radial width W1 of the guide-side stopper 46 is larger than the radial width W2 of the brim portion 48 of the cylindrical portion 44, so that the guide-side stopper 46 The stress applied to the guide can be further dispersed and reduced, and the durability of the guide-side stopper 46 can be further improved.

Further, according to the operation device 26 according to the embodiment of the present invention, when the guide side stopper 46 of the rotation transmission unit guide 34 is made of resin, a cavity is generated inside the guide side stopper 46 of the molded body. It is possible to suppress the decrease in the strength of the guide-side stopper 46. Therefore, it is possible to provide a stronger and more reliable guide-side stopper 46.

Further, according to the operating device 26 according to the embodiment of the present invention, the guide-side stopper 46 is formed in a fan shape so as to extend outward from the arc shape of a part of the brim portion 48 of the cylindrical portion 44. This makes it difficult to concentrate stress between the guide-side stopper 46 and the brim portion 48 of the cylindrical portion 44, and the stress applied to the guide-side stopper 46 can be dispersed and reduced.
Further, the guide-side stopper 46 is formed in a fan shape symmetrical in the circumferential direction even in a region outside the outer diameter of the brim portion 48 of the cylindrical portion 44. As a result, the function of limiting both the rotation direction of the handle 28 and the rotation direction of the other can be fulfilled. Further, it is possible to secure the same rotation range of the handle 28 as in the case where the outer diameter of the guide side stopper 46 is not increased.
Further, even when the rotation direction of the handle 28 is reversed, for example, when the handle 28 is changed from the left handle to the right handle, the first protrusion 40 of the right handle is attached to the fan-shaped guide side stopper 46. The rotation of the handle 28 can be limited to the same rotation range by abutting.

Further, according to the operating device 26 according to the embodiment of the present invention, the guide-side stopper 46 comes into contact with at least a part of the first protrusion 40 on the outside of the outer diameter of the brim 48 of the cylindrical portion 44. Since the contact region and / or the second contact region 58 that contacts at least a part of the second protrusion 42 is provided, the stress applied to the guide-side stopper 46 can be further reduced.

Further, according to the operating device 26 according to the embodiment of the present invention, the stretched portion 46b can increase the area where the guide side stopper 46 and the brim portion 48 of the cylindrical portion 44 are connected, and the guide side stopper can be increased. The stress applied to the 46 can be more dispersed and further reduced. Further, the strength of the guide-side stopper 46 can be increased, and the durability of the guide-side stopper 46 can be further improved.

Next, the present invention is a washing water tank device 16 characterized by having the above-mentioned operating device 26.
In the present invention configured as described above, it is possible to provide a washing water tank device 16 provided with the above-mentioned operating device 26.

Next, the present invention is a flush toilet bowl 1 provided with the wash water tank device 16.
In the present invention configured as described above, it is possible to provide the flush toilet bowl 1 provided with the wash water tank device 16 provided with the operation device 26.

1 Washing toilet 2 Toilet body 4 Bowl 6 Drain trap pipeline 6a Inlet 8 Rim 9 Headrace 10 1st spout 12 Reservoir 14 2nd spout 16 Washing water tank device 18 Washing water tank 18a Side wall 18b Side wall 18c Opening 20 Drain port 22 Washing water supply device 24 Drain valve device 26 Operation device 28 Handle 28a Handle part 30 Chain 32 Arm member 32a Hook-shaped part 34 Rotation transmission part Guide 36 Cover 38 Nut 40 First protrusion 42 Second protrusion 44 Cylindrical part 46 Guide side stopper 46a Corner part 46b Extension part 48 Brim part 50 Penetration part 52 Hollow space 54 First side surface 56 Second side surface 58 Second contact area A1 Arrow A2 Arrow C Center axis D1 Outer diameter D2 Outer diameter W0 Reservoir surface W1 width W2 width

Claims (9)

It is an operating device that operates the drain valve placed in the washing water tank by rotating the handle.
The handle, which is rotatably arranged on the outside of the wash water tank and has a handle-side stopper protruding from the base of the handle toward the wash water tank.
A rotation transmission unit that is connected to the handle and is arranged through the wall surface of the wash water tank to transmit the rotation of the handle to the inside of the wash water tank.
A rotation transmission unit guide that rotatably supports the rotation transmission unit.
A cylindrical part that rotatably supports the rotation transmission part inside,
The cylindrical portion is formed so as to project toward the handle from the cylindrical portion arranged on the outside of the washing water tank, and abuts on the handle-side stopper of the handle to limit the rotation range of the handle. The rotation transmission unit guide provided with the guide side stopper,
It has a cover that is arranged on the outside of the wall surface of the washing water tank and covers the outer periphery of the area where the handle-side stopper of the handle and the guide-side stopper of the rotation transmission portion guide are arranged.
The guide-side stopper of the rotation transmission portion guide is characterized in that it has a portion having an outer diameter larger than the outer diameter of the cylindrical portion arranged outside the washing water tank of the cylindrical portion. Operation device. The operating device according to claim 1, wherein the handle is made of metal, and the rotation transmission unit guide is made of resin. The operating device according to claim 1 or 2, wherein the radial width of the guide-side stopper of the rotation transmission unit guide is larger than the radial width of the cylindrical portion of the cylindrical portion. The operating device according to claim 2, wherein the guide-side stopper of the rotation transmission unit guide forms a hollow space. The operation according to any one of claims 1 to 4, wherein the guide-side stopper of the rotation transmission portion guide is formed in a fan shape so as to extend to the outside of the outer diameter of the cylindrical portion of the cylindrical portion. Device. Any of claims 1 to 5, wherein the guide-side stopper of the rotation transmission portion guide has a contact region that abuts on at least a part of the handle-side stopper on the outside of the outer diameter of the cylindrical portion of the cylindrical portion. The operating device according to item 1. The guide-side stopper of the rotation transmission portion guide includes an extension portion formed up to the radial outside of the cylindrical portion of the cylindrical portion and connected to the radial outer surface of the cylindrical portion. The operating device according to any one of 6. A washing water tank device provided with the operating device according to any one of claims 1 to 7. A flush toilet equipped with the flush water tank device according to claim 8.

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