Cleaning handle unit, flush tank unit, and toilet bowl device

Abstract

To provide a technique capable of shifting rotation of a handle and rotation of a shaft member disposed in a flush tank.SOLUTION: A cleaning handle unit includes a flush-tank-side shaft member that operates a plug member disposed at a drain port of a flush tank of a toilet bowl device, is disposed on the flush tank side, and is connected to the plug member, a handle-side shaft member connected to the flush-tank-side shaft member, and a handle attached to the handle-side shaft member, wherein the handle-side shaft member may move, relative to the flush-tank-side shaft member, between a normal position where the handle-side shaft member rotates integrally with the flush-tank-side shaft member and a rotational position where the handle-side shaft member is rotatable relative to the flush-tank-side shaft member.SELECTED DRAWING: Figure 8

Description

[Technical Field]

[0001] The technology disclosed in this specification relates to a flush handle unit, a flush tank unit, and a toilet apparatus. [Background technology]

[0002] Patent Document 1 discloses a technique for supplying flush water stored in a flush tank to a toilet bowl by operating an opening / closing mechanism located in the flush tank. A drain outlet is located in the flush tank. The drain outlet is blocked by a plug member. When a user operates a handle, the plug member is pulled up, thereby opening the drain outlet. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2012-132142 Summary of the Invention [Problem to be solved by the invention]

[0004] In the above-mentioned technique, the handle is fixed to the output shaft that operates the plug member. In this configuration, the rotation of the handle around the output shaft coincides with the rotation of the output shaft.

[0005] This specification provides a technique that can shift the rotation of the handle from the rotation of the shaft member disposed in the washing tank. [Means for solving the problem]

[0006] The technology disclosed in this specification relates to a flush handle unit. The flush handle unit operates a plug member that is placed at the drain outlet of a flush tank of a toilet device, and includes a flush tank-side shaft member that is placed on the flush tank side and connected to the plug member, a handle-side shaft member that is connected to the flush tank-side shaft member, and a handle attached to the handle-side shaft member, and the handle-side shaft member may move relative to the flush tank-side shaft member between a normal position where it rotates integrally with the flush tank-side shaft member, and a rotation position where it can rotate relative to the flush tank-side shaft member.

[0007] Another technology disclosed in this specification relates to a cleaning tank unit. The cleaning tank unit may include a cleaning tank, a plug member disposed in a drain outlet of the cleaning tank, and the above-mentioned cleaning handle unit that operates the plug member.

[0008] Yet another technology disclosed in this specification relates to a toilet apparatus. The toilet apparatus may include a flush tank, a plug member disposed in a drain outlet of the flush tank, the flush handle unit described above for operating the plug member, and a toilet bowl communicating with the drain outlet. [Brief explanation of the drawings]

[0009] [Figure 1] 1 is a perspective view of a toilet device according to an embodiment of the present invention; [Figure 2] FIG. 2 is a perspective view showing a schematic configuration of a cleaning tank unit according to the present embodiment. [Figure 3] FIG. 2 is a perspective view of the cleaning handle unit of the present embodiment. [Figure 4] 2 is a vertical cross-sectional view of the output shaft unit and its surroundings according to the embodiment. FIG. [Figure 5] FIG. 2 is a perspective view of two shaft members of the present embodiment. [Figure 6] 6 shows a cross-sectional view taken along line VI-VI in FIG. [Figure 7] FIG. 2 is an enlarged perspective view of a connecting portion of the present embodiment. [Figure 8] 8 shows a cross-sectional view of the connecting portion and the inserting portion taken along the line VIII-VIII in FIG. 4. [Figure 9] FIG. 2 is an enlarged perspective view of an insertion portion of the present embodiment. [Figure 10] FIG. 5 is a cross-sectional view taken along line XX in FIG. 4, showing a state in which the handle is locked. [Figure 11] FIG. 2 is an enlarged perspective view of a locking portion according to the present embodiment. [Figure 12] 13 is a cross-sectional view of a coupling portion and an insertion portion taken along the line XIII-XIII in FIG. 4 of a modified example. [Figure 13] 8 is a cross-sectional view of a coupling portion and an insertion portion taken along the line VIII-VIII in FIG. 4 of a modified example. [Figure 14] 13 is a cross-sectional view of a coupling portion and an insertion portion taken along the line XIII-XIII in FIG. 4 of a modified example. [Figure 15] 8 is a cross-sectional view of a coupling portion and an insertion portion taken along the line VIII-VIII in FIG. 4 of a modified example. DETAILED DESCRIPTION OF THE INVENTION

[0010] (Configuration of toilet device) As shown in FIG. 1, the toilet device 2 includes a toilet 4 and a flushing tank unit 6. The toilet 4 includes a toilet body 8 that receives excrement, and a toilet seat 9 that is placed on the toilet body 8. The toilet 4 is a flush toilet that can be used while the user is sitting on the toilet seat 9. The configuration of the toilet 4 is not particularly limited. A toilet lid that covers the toilet seat 9 may be provided. The toilet 4 may also be a toilet that can be used while the user is standing. The toilet 4 may also be an ostomate device.

[0011] In the following, for the purpose of explaining the embodiment, the up-down direction, left-right direction, and front-rear direction are defined based on the viewpoint of a user facing the toilet device 2. In this embodiment, some of the configuration has been simplified or omitted to facilitate understanding of the technology.

[0012] The toilet 4 is connected to the flush tank unit 6 by piping (not shown). As shown in FIG. 2, the flush tank unit 6 comprises a flush handle unit 10, a flush tank 50, a plug member 60, and a connecting member 62. The flush tank 50 stores flush water for flushing the toilet body 8. The flush water is supplied to the toilet body 8 via piping from a drain outlet 52 located at the bottom of the flush tank 50. Water is supplied to the flush tank 50 from a water supply source such as a tap water pipe.

[0013] The plug member 60 closes the drain outlet 52 located at the bottom of the flush tank 50. The plug member 60 includes a flapper valve, a float rubber ball, or the like. The plug member 60 is attached to the flush tank 50 so that it can move between a state in which it closes the drain outlet 52 and a state in which it opens the drain outlet 52. The plug member 60 is attached to the flush tank 50 so that it cannot move upward beyond the state in which it opens the drain outlet 52. When the drain outlet 52 is opened, flush water in the flush tank 50 is supplied to the toilet body 8.

[0014] The plug member 60 is connected to the cleaning handle unit 10 via a connecting member 62. The connecting member 62 is, for example, a ball chain. The cleaning tank unit 6 may also include a ball tap, a piston valve, a float, an overflow pipe, etc.

[0015] (Configuration of cleaning handle unit) The flushing handle unit 10 switches the drain port 52 between a closed state and an open state by operating the plug member 60. As shown in FIGS. 3 and 4, the flushing handle unit 10 includes a case 12, a motor 14, an output shaft unit 20, a gear unit 30, and a handle unit 40. FIG. 4 is a cross-sectional view of a cross section extending in the vertical direction and passing through the axial centers of shaft bodies 22a and 24a, which will be described later. FIGS. 1 and 2 show the flushing handle unit 10 in a state in which the plug member 60 closes the drain port 52. FIGS. 3 and 4 show the flushing handle unit 10 in a state in which the drain port 52 is open.

[0016] The case 12 is disposed within the flush tank 50. The case 12 is attached to the interior of the flush tank 50, above the flush tank 50. The case 12 houses the motor 14, part of the output shaft unit 20, and the gear unit 30. The motor 14 is driven in response to a signal from an external device. The external device sends a signal to the motor 14 when flush water should be supplied to the toilet body 8. The external device includes, for example, a sensor that detects when the user has used the toilet device 2, an operating device that is operated by the user, etc.

[0017] The motor 14 transmits the torque of the motor 14 to the gear unit 30. The gear unit 30 includes a plurality of gears. The plurality of gears transmit the torque of the motor 14 to the output shaft unit 20.

[0018] The output shaft unit 20 includes two shaft members 22, 24 and a shaft gear 26. The shaft gear 26 is housed in the case 12. The shaft gear 26 has a disk shape. The shaft gear 26 meshes with one gear of the gear unit 30 by means of a plurality of teeth arranged on its outer periphery. The shaft member 22 is fixed to the center of rotation of the shaft gear 26.

[0019] Shaft member 22 includes shaft body 22a and contact member 22b. Shaft body 22a extends linearly from case 12 into cleaning tank 50. As shown in FIG. 2, the end of shaft body 22a facing cleaning tank 50 is curved. Plug member 60 is connected to the end of shaft body 22a facing cleaning tank 50 via connecting member 62. Torque of motor 14 is transmitted from gear unit 30 to shaft side gear 26. The torque of motor 14 rotates shaft side gear 26. The rotation of shaft side gear 26 rotates shaft body 22a. When shaft body 22a rotates in direction R, the curved portion at the end of shaft body 22a moves upward. Connecting member 62 is pulled upward by shaft body 22a. As a result, plug member 60 moves upward, opening drain port 52. When shaft body 22a is rotated in the direction opposite to direction R, the curved portion at the end of shaft body 22a is moved downward. Shaft body 22a lowers connecting member 62. As a result, plug member 60 moves downward, and drain outlet 52 is closed.

[0020] As shown in FIG. 5, contact member 22b is attached to the end of shaft body 22a on the handle unit 40 side. Contact member 22b is housed in case 12. Contact member 22b includes a disk portion 22c and a protruding portion 22d. Disk portion 22c has a larger diameter than shaft body 22a. Protruding portion 22d is located at the outer peripheral end of disk portion 22c. Protruding portion 22d extends parallel to shaft body 22a from disk portion 22c toward the side opposite cleaning tank 50.

[0021] As shown in FIG. 6, restricting members 14a and 14b that come into contact with protruding portion 22d are disposed on case 12. Shaft member 24 is omitted from FIG. 6. Restricting members 14a and 14b protrude from the wall surface of case 12 opposite cleaning tank 50 toward disk portion 22c. Restricting members 14a and 14b are disposed in positions that allow them to come into contact with protruding portion 22d when protruding portion 22d rotates due to rotation of shaft body 22a. Protruding portion 22d is rotatable within a range RR between restricting members 14a and 14b. Restricting members 14a and 14b are disposed spaced apart from disk portion 22c in the left-right direction.

[0022] FIG. 6 shows a state in which protrusion 22d is in contact with restricting member 14b. This state is an open state in which plug member 60 has moved upward and drain outlet 52 is open. Protrusion 22d cannot move further rotationally beyond restricting member 14b from this state. This restricts shaft body 22a from moving rotationally beyond the open state. When shaft body 22a rotates counterclockwise from the open state, protrusion 22d rotates counterclockwise in conjunction with the rotation of shaft body 22a. Protrusion 22d cannot move further rotationally beyond restricting member 14a by coming into contact with restricting member 14a located at the lower end of range RR.

[0023] As shown in Fig. 4, connecting portion 23 is arranged at the end of shaft body 22a facing handle unit 40. Connecting portion 23 includes recesses 23a and 23b recessed from the end of shaft body 22a facing handle unit 40 toward cleaning tank 50. Recesses 23a and 23b are arranged in the center of disk portion 22c.

[0024] 6 and 7, recess 23a includes first portion 23c and second portion 23d. First portion 23c is a partial cylindrical recess with its central axis coincident with central axis X of shaft body 22a. Second portion 23d is connected to the lower end of first portion 23c. Second portion 23d is a partial cylindrical recess having a larger diameter than first portion 23c. Recess 23a has a shape that gradually widens from the end of first portion 23c toward second portion 23d.

[0025] On the handle unit 40 side of the recess 23a, the recess 23b is arranged adjacent to the recess 23a. The recess 23b includes a third portion 23f and a fourth portion 23g. The third portion 23f is arranged overlapping with the first portion 23c on the handle unit 40 side of the first portion 23c. The third portion 23f is a partial cylindrical recess similar to the first portion 23c. The fourth portion 23g is connected to the third portion 23f. The fourth portion 23g is arranged overlapping with the second portion 23d on the handle unit 40 side of the second portion 23d. The fourth portion 23g is a partial cylindrical recess having a larger diameter than the second portion 23d and the third portion 23f. The recess 23b has a shape that gradually widens from the end of the third portion 23f toward the fourth portion 23g.

[0026] The first portion 23c and the third portion 23f are connected without a step along the central axis X (i.e., the left-right direction). A step is formed between the second portion 23d and the fourth portion 23g due to the dimensional difference between the second portion 23d and the fourth portion 23g. As shown in Fig. 8, the fourth portion 23g extends on both sides of the second portion 23d in the rotation direction of the shaft members 22, 24 (i.e., direction R).

[0027] 4 and 5, shaft member 24 is connected to the handle side end of shaft body 22a. Shaft member 24 is connected to shaft member 22 at the end on the cleaning tank 50 side. Shaft member 24 includes shaft body 24a, insertion portion 24b, and flange portion 24c.

[0028] Shaft body 24a is disposed on the same straight line as shaft body 22a. Shaft body 24a extends linearly from case 12 to handle unit 40. Insertion portion 24b is disposed on shaft body 24a on the shaft body 22a side. As shown in FIG. 9, insertion portion 24b has a shape corresponding to first portion 23c and second portion 23d. Insertion portion 24b is inserted into connecting portion 23. As shown in FIG. 4, insertion portion 24b extends beyond recess 23b and reaches recess 23a. Insertion portion 24b has a shape that follows recess 23a. When inserted into recess 23a, insertion portion 24b fits into the inner circumferential surface of recess 23a with almost no gap between them. This allows shaft body 24a to be integral with shaft body 22a. Shaft body 24a rotates about central axis X in accordance with the rotation of shaft body 22a.

[0029] Flange portion 24c is disposed at the end of insertion portion 24b facing the handle unit 40. Flange portion 24c has a disk shape with a diameter larger than that of shaft body 24a. In the vertical direction, flange portion 24c is disposed between protrusion 22d and shaft body 24a. Flange portion 24c contacts disk portion 22c on the surface of connecting portion 23 facing the handle unit 40.

[0030] Flange portion 24c is biased toward disk portion 22c by coil spring 15, which is arranged between flange portion 24c and case 12 on the handle unit 40 side of flange portion 24c, thereby positioning shaft member 24 in the axial direction with respect to shaft body 22a.

[0031] As shaft body 24a is pulled in a direction away from shaft member 22, coil spring 15 is compressed, and shaft member 24 is moved in the axial direction relative to shaft member 22. Insertion portion 24b is pulled out of recess 23a. The end of insertion portion 24b crosses the boundary between recesses 23a and 23b and is positioned within recess 23b.

[0032] 8, the insertion portion 24b that has come out of the recess 23a becomes rotatable within the recess 23b around the central axis X. The insertion portion 24b is rotatable around the central axis X within a range RA.

[0033] In a state in which the insertion portion 24b is inserted up to the recessed portion 23a, the shaft member 24 rotates integrally with the shaft member 22. Unless the shaft member 24 is pulled in a direction away from the shaft member 22, the state in which the insertion portion 24b is inserted up to the recessed portion 23a is maintained by the coil spring 15. In a state in which the insertion portion 24b is removed from the recessed portion 23a by pulling the shaft member 24 in a direction away from the shaft member 22, the shaft member 24 and the shaft member 22 become separate bodies and can rotate within the range RA.

[0034] As shown in FIG. 4, handle unit 40 is disposed on the end of shaft body 24a opposite shaft member 22. Handle unit 40 includes handle 42 and locking member 44. Handle 42 is fixed to shaft body 24a. Referring also to FIG. 10, handle 42 includes base portion 46 and lever portion 48. Base portion 46 includes cylindrical portion 46a, surface portion 46b, retaining portion 46c, and connecting portion 49. Cylindrical portion 46a has a cylindrical shape. Cylindrical portion 46a surrounds the end of shaft body 24a. Retaining portion 46c is disposed inside cylindrical portion 46a. Retaining portion 46c has a cylindrical shape into which the end of shaft body 24a fits. An opening at one end of the cylindrical shape of cylindrical portion 46a is closed by surface portion 46b.

[0035] The holding portion 46c is connected to the cylindrical portion 46a by a connecting portion 49. The connecting portion 49 includes a plurality of connecting pieces 49a, 49b, and 49c that extend from the inner peripheral surface of the cylindrical portion 46a to the outer peripheral surface of the holding portion 46c. The connecting pieces 49a, 49b, and 49c each have a flat plate shape. The connecting pieces 49a, 49b, and 49c are arranged apart from one another in the direction R.

[0036] Lever portion 48 protrudes outward from the outer circumferential surface of cylindrical portion 46a. A user can rotate handle 42 in direction R by operating lever portion 48. When handle 42 is rotated, shaft members 22, 24 rotate. This operates plug member 60, switching drain outlet 52 from a closed state in which it is closed to an open state in which it is open.

[0037] When the shaft members 22, 24 are not rotated, the handle 42 is maintained in a state in which the lever portion 48 protrudes downward. Figure 10 shows the position of the handle 42 in an open state in which the handle 42 is rotated and the drain outlet 52 is open. In the open state, the protrusion 22d is in contact with the restricting member 14b.

[0038] The locking member 44 is attached to the outer surface of the washing tank 50. As shown in FIG. 11, the locking member 44 includes locking pieces 44a and 44b extending from the outer surface of the washing tank 50 into the cylindrical portion 46a. The locking piece 44b is a curved plate-like member extending along the direction R. The locking piece 44a is disposed at the tip edge of the locking piece 44b. The locking piece 44a is a curved plate-like member extending along the direction R. The locking piece 44a has a contact surface 44c that contacts the connecting piece 49a in the open state. The locking piece 44b has a contact surface 44d that contacts the connecting piece 49b in the open state. The locking piece 44a further includes a locking groove 44e. The locking groove 44e is recessed in the locking piece 44a from the handle 42 side toward the washing tank 50 side. The locking piece 44b further includes a locking groove 44f. The lock groove 44f is recessed in the lock piece 44b from the handle 42 side to the washing tank 50 side, that is, to the left side.

[0039] Normally, the shaft member 24 is used in a state in which it is disposed in a normal position relative to the shaft member 22. In the normal position, the insertion portion 24b is inserted into the recess 23a, and the flange portion 24c is in contact with the disk portion 22c due to the force of the coil spring 15. In this state, the closed state and the open state can be switched by rotating the handle 42. The output shaft unit 20 may be rotated by the motor 14.

[0040] In the open state, the handle 42 can be pulled in a direction away from the cleaning tank 50 (i.e., to the right). When the handle 42 is pulled, the coil spring 15 is compressed, and the shaft member 24 is moved axially relative to the shaft member 22. As a result, the insertion portion 24b is pulled out of the recess 23a, and the shaft member 24 is placed in a rotation position relative to the shaft member 22. The insertion portion 24b that has come out of the recess 23a becomes rotatable about the central axis X within the recess 23b. With this configuration, the shaft member 22 rotates in the opposite direction to the direction R until the wall surface of the recess 23b contacts the insertion portion 24b. This creates a gap between the protrusion 22d and the restricting member 14b. As a result, the shaft members 22, 24 can further rotate clockwise.

[0041] When handle 42 is pulled in a direction away from washing tank 50, connecting piece 49a is positioned farther from washing tank 50 than locking piece 44a, and connecting piece 49b is positioned farther from washing tank 50 than locking piece 44b. This allows handle 42 to rotate further clockwise than in the open state.

[0042] When the handle 42 is further rotated clockwise from the open state, the shaft members 22, 24 rotate in direction R in conjunction with the rotation of the handle 42. As a result, the protrusion 22d comes into contact with the restricting member 14b, restricting the rotation of the shaft members 22, 24 and the handle 42. In this state, the connecting piece 49a is positioned on the side of the locking groove 44e opposite the washer tank 50. The connecting piece 49b is positioned on the side of the locking groove 44f opposite the washer tank 50. When the handle 42 is returned from the pulled state toward the washer tank 50, as shown in FIG. 11, the connecting piece 49a is inserted into the locking groove 44e and the connecting piece 49b is inserted into the locking groove 44f. The end of the insertion portion 24b on the shaft member 22 side is positioned within the recess 23b and does not reach the recess 23a. This locks the handle 42 to the washer tank 50. The shaft members 22, 24 are locked by the handle 42. The plug member 60 is locked in the open position by the shaft member 22 .

[0043] (effect) In the flushing handle unit 10, it is possible to realize a state in which the shaft members 22, 24 rotate together, and a state in which they rotate separately. This allows the shaft member 24 to rotate beyond the rotation range of the shaft member 22. As a result, by rotating only the shaft member 24 and locking the handle 42 with the lock member 44, it is possible to restrict the rotation of the output shaft unit 20. This allows the plug member 60 to be maintained in the open state.

[0044] Since only the shaft member 24 is rotated, the shaft member 22 is not rotated in the direction R beyond the open state. This prevents the connecting member 62 from being pulled upward. The connecting member 62 can prevent an increase in tensile stress between the plug member 60 and the shaft member 22.

[0045] By locking the handle 42 with the locking member 44, rotation of the shaft member 22 is stopped in the open state. This allows the drain port 52 to be maintained in an open state. For example, in cold regions, water may be drained from the cleaning tank 50 to prevent the water in the cleaning tank 50 from freezing. By maintaining the open state, the water in the cleaning tank 50 can be drained.

[0046] The shaft members 22, 24 can rotate integrally by fitting the insertion portion 24b into the recess 23a of the connecting portion 23. The shaft members 22, 24 can rotate separately by positioning the insertion portion 24b in the recess 23b of the connecting portion 23. The user can switch between rotating the shaft members 22, 24 integrally and rotating separately by simply moving the handle 42 left or right.

[0047] (Correspondence) The shaft member 22 is an example of a "washing tank side shaft member." The shaft member 24 is an example of a "handle side shaft member." The position of the shaft member 22 when the protrusion 22d is in contact with the regulating member 14b is an example of a "predetermined position." The locking member 44 is an example of a "fixing member." The connecting portion 49 is an example of a "contact member" and a "convex shape."

[0048] Aspects of the technology disclosed in this specification are listed below.

[0049] A first aspect is a flush handle unit that operates a plug member that is placed at the drain outlet of a flush tank of a toilet apparatus. The flush handle unit is placed on the flush tank side and comprises a flush tank-side shaft member that is connected to the plug member, a handle-side shaft member that is connected to the flush tank-side shaft member, and a handle that is attached to the handle-side shaft member, and the handle-side shaft member may move relative to the flush tank-side shaft member between a normal position where it rotates integrally with the flush tank-side shaft member, and a rotation position where it can rotate relative to the flush tank-side shaft member.

[0050] In a second aspect, in the first aspect, the cleaning handle unit further includes a regulating member that regulates the cleaning tank side shaft member from rotating beyond a predetermined position, and the handle side shaft member may be rotatable beyond the predetermined position by moving from the normal position to the rotation position.

[0051] In a third aspect, in the second aspect, the regulating member may come into contact with the washing tank side shaft member when the washing tank side shaft member is rotated to the predetermined position.

[0052] A fourth aspect is any one of the first to third aspects above, wherein the handle side shaft member comprises a handle shaft portion extending linearly between the cleaning tank and the handle, and an insertion portion extending from the handle shaft portion to the cleaning tank side shaft member, and the cleaning tank side shaft member comprises a cleaning tank side shaft portion arranged on the same axis as the handle shaft portion, a first recess into which the insertion portion fits, and a second recess that accommodates the insertion portion so that it can rotate a predetermined angle around the handle shaft portion, and in the normal position, the insertion portion fits into the first recess, and in the rotated position, the insertion portion is accommodated in the second recess.

[0053] A fifth aspect is the fourth aspect, wherein the first recess is arranged adjacent to the second recess along the axial direction of the handle shaft portion, and the handle side shaft member moves between the normal position and the rotated position by moving along the axial direction of the handle shaft portion relative to the cleaning tank side shaft member.

[0054] A sixth aspect may be any one of the first to fifth aspects, further comprising a locking portion that locks the rotation of the handle side shaft member at a locked position where the handle side shaft member is rotated relative to the cleaning tank side shaft member.

[0055] In a seventh aspect, in the sixth aspect described above, the locking portion may include a fixed member fixed to the cleaning tank, and a contact member arranged on the handle and contacting the fixed member when the handle side shaft member is in the locked position.

[0056] An eighth aspect is the seventh aspect, wherein the fixing member has a groove shape, the contact member has a convex shape that fits into the groove shape, and the convex shape is located outside the groove shape in the normal position, and is located inside the groove shape in the rotated position.

[0057] A ninth aspect relates to a cleaning tank unit. The cleaning tank unit may include a cleaning tank, a plug member disposed in a drain outlet of the cleaning tank, and the cleaning handle unit according to any one of aspects 1 to 8 that operates the plug member.

[0058] A tenth aspect relates to a toilet apparatus. The toilet apparatus may include a flush tank, a plug member disposed in a drain outlet of the flush tank, the flush handle unit according to any one of aspects 1 to 8 that operates the plug member, and a toilet bowl that communicates with the drain outlet.

[0059] Specific examples of the technology disclosed in this specification have been described in detail above. These are merely examples and do not limit the scope of the claims. The technology described in the claims includes various modifications and variations of the specific examples exemplified above. Modifications of the above embodiments are listed below.

[0060] (1) In this embodiment, the shaft member 22 has the connecting portion 23, and the shaft member 24 has the insertion portion 24b. In a modified example, the shaft member 24 may have a connecting portion having a recess similar to the connecting portion 23, and the shaft member 22 may have an insertion portion that is inserted into the connecting portion of the shaft member 24.

[0061] (2) The shapes of the recesses 23a, 23b and the insertion portion 24b are not particularly limited as long as they are shaped such that the shaft members 22, 24 can be rotated integrally when the insertion portion 24b is fitted into the recess 23a, and the shaft members 22, 24 can be rotated independently when the insertion portion 24b is removed from the recess 23a and placed in the recess 23b.

[0062] For example, as shown in FIGS. 12 and 13, connecting portion 123 may be arranged, instead of connecting portion 23, at the end of shaft body 22a facing handle unit 40. Connecting portion 123 may include, instead of recesses 23a and 23b, recesses 123a (see FIG. 12) and 123b (see FIG. 13) recessed from the end of shaft body 22a facing handle unit 40 toward cleaning tank 50. As shown in FIG. 12, recess 123a may include first portion 123c and multiple second portions 123d. First portion 123c may be a cylindrical recess with its central axis coincident with central axis X of shaft body 22a. Multiple second portions 123d may be arranged on the outer periphery of first portion 123c. Second portion 123d may be a partial cylindrical recess protruding outward from first portion 123c. The second portions 123d may be arranged at equal intervals in the circumferential direction on the first portion 123c.

[0063] A recess 123b may be disposed adjacent to the recess 123a on the handle unit 40 side of the recess 123a. As shown in FIG. 13, the recess 123b may include a third portion 123f and a fourth portion 123g. The third portion 123f may be disposed overlapping the first portion 123c on the handle unit 40 side of the first portion 123c. The third portion 123f is a cylindrical recess similar to the first portion 123c. A plurality of fourth portions 123g may be connected to the outer periphery of the third portion 123f. Each fourth portion 123g is disposed overlapping the second portion 123d on the handle unit 40 side of each second portion 123d. The fourth portion 123g may be a partial cylindrical recess extending in the direction R further than the second portion 123d.

[0064] The shaft member 24 may include an inserting portion 124b instead of the inserting portion 24b. The inserting portion 124b may have a shape that fits into the recess 123a.

[0065] For example, as shown in FIGS. 14 and 15, connecting portion 223 may be arranged at the end of shaft body 22a facing handle unit 40, instead of connecting portion 23. Connecting portion 223 may include, instead of recesses 23a and 23b, recesses 223a (see FIG. 14) and 223b (see FIG. 15) recessed from the end of shaft body 22a facing handle unit 40 toward cleaning tank 50. As shown in FIG. 14, recess 223a may include first portion 223c and a pair of second portions 223d. First portion 223c may be a cylindrical recess with its central axis coincident with central axis X of shaft body 22a. A pair of second portions 223d may be connected to the outer periphery of first portion 223c. Each of the pair of second portions 223d may be a recess protruding in the vertical direction from first portion 223c.

[0066] A recess 223b may be disposed adjacent to the recess 223a on the handle unit 40 side of the recess 223a. As shown in FIG. 15, the recess 223b may include a third portion 223f and a pair of fourth portions 223g. The third portion 223f may be disposed overlapping the first portion 223c on the handle unit 40 side of the first portion 223c. The third portion 223f may have a shape that supports the insertion portion 224b so that the insertion portion 224b is rotatable within the recess 223b. A pair of fourth portions 223g may be connected to the outer periphery of the third portion 223c and the third portion 223f. Each fourth portion 223g is disposed overlapping a corresponding second portion 223d. The fourth portions 223g may be recesses that extend in the direction R further than the second portions 223d.

[0067] The shaft member 24 may include an inserting portion 224b instead of the inserting portion 24b. The inserting portion 224b may have a shape that fits into the recess 223a.

[0068] For example, the recess 23b may have a shape that allows the insertion portion 24b to rotate in the direction R when the insertion portion 24b is placed in the recess 23b.

[0069] (3) In this embodiment, the rotation of the shaft member 24 is restricted by restricting the rotation of the handle 42 relative to the cleaning tank 50 using the lock member 44. The configuration of the "lock portion" is not limited to this. For example, the rotation of the shaft member 24 may be restricted by directly fixing the shaft member 24 to the cleaning tank 50. For example, a separate member may be provided to restrict the rotation of the shaft member 24 relative to the cleaning tank 50. For example, a separate member may be provided to restrict the rotation of the shaft member 24 relative to the cleaning tank 50.

[0070] The technical elements described in at least one of the specification and drawings exhibit technical utility alone or in various combinations, and are not limited to the combinations described in the claims at the time of filing. The technologies exemplified in at least one of the specification and drawings can achieve multiple objectives simultaneously, and achieving one of those objectives is itself technically useful. [Explanation of symbols]

[0071] 2: toilet device, 4: toilet bowl, 6: flush tank unit, 10: flush handle unit, 12: case, 14a, 14b: restricting member, 20: output shaft unit, 22, 24: shaft member, 22a, 24a: shaft body, 22b: contact member, 22d: protrusion, 23: connecting portion, 23a, 23b: recess, 24b: insertion portion, 30: gear unit, 40: handle unit, 42: handle, 44: locking member, 44a, 44b: locking pieces, 46: base, 48: lever portion, 49: connecting portions 49a, 49b, 49c: connecting pieces, 50: flush tank

Claims

1. A flush handle unit for operating a plug member disposed in a drain outlet of a flush tank of a toilet device, a cleaning tank-side shaft member that is disposed on the cleaning tank side and is connected to the plug member; a handle-side shaft member connected to the cleaning tank-side shaft member; a handle attached to the handle-side shaft member, A flushing handle unit in which the handle side shaft member moves relative to the flushing tank side shaft member between a normal position in which it rotates integrally with the flushing tank side shaft member and a rotation position in which it can rotate relative to the flushing tank side shaft member.

2. The washing tank side shaft member further includes a restricting member that restricts the washing tank side shaft member from rotating beyond a predetermined position. The cleaning handle unit according to claim 1 , wherein the handle-side shaft member is rotatable beyond the predetermined position by moving from the normal position to the rotated position.

3. The washing handle unit according to claim 2 , wherein the regulating member comes into contact with the washing tank side shaft member when the washing tank side shaft member is rotated to the predetermined position.

4. The handle side shaft member is a handle shaft portion extending linearly between the cleaning tank and the handle; a protrusion protruding from the handle shaft outward in the circumferential direction of the handle shaft, The cleaning tank side shaft member is a cleaning tank side shaft portion that is arranged coaxially with the handle shaft portion; a first recess into which the protrusion fits; a second recess that accommodates the protrusion so that the protrusion can rotate by a predetermined angle around the handle shaft, In the normal position, the protrusion fits into the first recess, The cleaning handle unit according to claim 1 , wherein in the rotated position, the protrusion is housed in the second recess.

5. The first recess is disposed adjacent to the second recess along the axial direction of the handle shaft, The cleaning handle unit according to claim 4 , wherein the handle-side shaft member moves between the normal position and the rotated position by moving along the axial direction of the handle shaft portion relative to the cleaning tank-side shaft member.

6. The cleaning handle unit according to claim 1 , further comprising a locking portion that locks the rotation of the handle-side shaft member at a locked position where the handle-side shaft member is rotated relative to the cleaning tank-side shaft member.

7. The locking portion is a fixing member fixed to the cleaning tank; The cleaning handle unit according to claim 6 , further comprising: a contact member disposed on the handle, the contact member contacting the fixing member when the handle-side shaft member is in the locked position.

8. The fixing member has a groove shape, the contact member has a convex shape that fits into the groove shape, The convex shape is In the normal position, the groove is located outside the groove shape, The cleaning handle unit of claim 7 , wherein the cleaning handle unit is located inside the groove shape in the rotational position.

9. A cleaning tank, a plug member disposed at a drain outlet of the cleaning tank; A washing tank unit comprising: a washing handle unit according to any one of claims 1 to 3 that operates the plug member.

10. A cleaning tank, a plug member disposed at a drain outlet of the cleaning tank; A cleaning handle unit according to any one of claims 1 to 3, which operates the plug member; A toilet device comprising: a toilet in communication with the drain outlet.

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