Toilet bowl and toilet bowl fixing method

Abstract

To provide a toilet bowl which enables a fixing member having a required length to be mounted even if a space for a toilet bowl body is limited, and which facilitates installation work on a mounting surface.SOLUTION: The toilet bowl 1, which has the toilet bowl main body 2 and is mounted to the mounting surface 10, is provided with the insertion hole 25, which is formed in the rear wall side 2a of the toilet bowl main body 2 that faces the mounting surface 10, the mounting member 23, which is inserted into the insertion hole 25, and the fixing member 17, which is for fixing the toilet bowl 1 to the mounting surface 10 and is inserted into and fixed to the mounting member 23 from the rear wall side 2a side.SELECTED DRAWING: Figure 4

Description

[Technical Field]

[0001] The present invention relates to a toilet bowl and a method for fixing the toilet bowl. [Background technology]

[0002] Previously, when fixing a toilet to a mounting surface such as a wall or stand, bolts were fixed to the wall or stand beforehand, and the toilet was then inserted into the fixed bolts. Conventional wall-hung toilets have access openings in the skirt on the side of the toilet, so workers could use the openings to fix the toilet to the wall or other mounting surface. However, if the bolts are fixed to the toilet first, and then the toilet is inserted into the stand, adjustment and fixing work can be done on the stand side, avoiding the need to adjust and fix the toilet on the toilet side, where work space is limited.

[0003] However, when installing bolts inside a toilet in this way, the worker must insert the mounting member with the bolt through the access hole on the back of the toilet, secure the bolt inside the toilet, and then install the toilet with the mounting member attached to the wall. This means that enough work space is required inside the toilet to maneuver the bolt. However, depending on the shape of the toilet, it may not be possible to secure a large work space due to the trap and condensation cover. Furthermore, even for full-skirt wall-hung toilets with no access openings in the skirt on the side of the toilet, as disclosed in Patent Document 1, bolts of the necessary length must be installed to secure the toilet to the mounting surface. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Publication No. 2020-033819 Summary of the Invention [Problem to be solved by the invention]

[0005] Therefore, an object of the present invention is to provide a toilet bowl that can be fitted with a fixing member of the required length even when the space on the toilet body is limited, and that simplifies the installation work on the mounting surface. [Means for solving the problem]

[0006] To solve the above problems, according to a first aspect of the present invention, the following toilet is provided: A toilet having a toilet body and to be attached to a mounting surface, the toilet body comprising: an insertion hole formed in a rear wall of the toilet body facing the mounting surface, a mounting member inserted into the insertion hole, and a fixing member for fixing the toilet to the mounting surface, the fixing member being inserted into and fixed to the mounting member from the rear wall side.

[0007] With this configuration, even if the space inside the toilet body is limited, i.e., even if there is not enough working space within the toilet body to handle a fixing member of the required length, a fixing member of the required length can be attached to the toilet body in advance. When attaching mounting and fixing members inside the toilet, the fixing member can be attached using the minimum space allowed by the toilet's specifications. Therefore, a toilet with attached fixing members can be easily installed on a mounting surface such as a toilet room wall or a toilet cabinet stand. This simplifies the installation work of the toilet on site.

[0008] Furthermore, in the toilet according to the second aspect of the present invention, a fixed receiving member equipped with a female thread portion for fixing the fixing member is housed in a recess formed in the mounting member.

[0009] According to this configuration, the worker can easily fasten the attachment member and the fastening member by turning the fastening member into the fastening receiving member.

[0010] In addition, in a toilet according to a third aspect of the present invention, the mounting member includes a head portion having a larger diameter than the insertion hole, and an engagement portion extending from the head portion, passing through the insertion hole, and engaging with a first outer periphery of the insertion hole.

[0011] With this configuration, even in a small work space, a worker can easily insert the engaging portion into the insertion hole to engage and attach the mounting member to the insertion hole.

[0012] Furthermore, in the toilet according to the fourth aspect of the present invention, the engagement portion is elastically deformable in the radial direction.

[0013] With this configuration, even in a small work space, a worker can use the elastic force of the engaging portion to easily engage and attach the mounting member to the insertion hole.

[0014] In addition, in a toilet according to a fifth aspect of the present invention, the mounting member includes a first mounting member having a larger diameter than the insertion hole, and a second mounting member having one end screwed into the first mounting member through the insertion hole and the other end engaging with a second outer periphery of the insertion hole.

[0015] With this configuration, a relatively large-diameter second mounting member is inserted into a relatively large-diameter insertion hole and then threaded into the first mounting member, thereby securing the mounting member to the toilet bowl 1. This reduces the radial play between the insertion hole and the mounting member, and prevents rattling and left-right and up-down misalignment of the mounting member and fixing member.

[0016] In addition, in a toilet according to the sixth aspect of the present invention, the second mounting member includes an elongated connecting portion and two hollow shaft portions extending perpendicular to the connecting portion and each having a screw thread that engages with the first mounting member, and the fixing member is inserted through the hollow shaft portions.

[0017] With this configuration, two hollow shafts connected by the connecting portions of the second mounting member can be inserted into the two insertion holes and fixed to the first mounting member. Therefore, the fixing member inserted into the hollow shafts is also fixed in the axial and radial directions, which makes it possible to suppress rattle and vertical and horizontal misalignment of the mounting member and fixing member.

[0018] Furthermore, in the toilet pertaining to the seventh aspect of the present invention, the second attachment member has irregularities on the surface facing the first outer periphery of the insertion hole.

[0019] According to this configuration, even when the fixing member inserted into the second mounting member is rotated and attached to the first mounting member, frictional force is generated between the unevenness and the first outer periphery of the insertion hole, preventing the second mounting member from rotating together with the fixing member (spinning freely).

[0020] In addition, in the toilet according to the eighth aspect of the present invention, a plurality of the insertion holes are formed, the mounting member and the fixing member are attached to each of the insertion holes, and a reinforcing member is further provided that suspends and fixes the plurality of fixing members.

[0021] With this configuration, the reinforcing member connects the fixing members that are inserted into and attached to the multiple insertion holes, making it possible to more firmly fix the fixing members to the toilet bowl 1. Even if there is a radial gap between the fixing member and the insertion hole, it is possible to prevent the fixing member from moving left and right or up and down due to the weight of the toilet bowl or a user sitting on it.

[0022] Furthermore, in a toilet according to a ninth aspect of the present invention, the reinforcing member is a long, thin plate-like member with holes at both ends through which the fixing members pass.

[0023] With this configuration, the toilet bowl can be attached as closely as possible to the attachment surface, thereby saving space and enabling the toilet room to be used more effectively.

[0024] Furthermore, in a toilet according to a tenth aspect of the present invention, the fixing member is a bolt.

[0025] With this configuration, a bolt with a long shaft length can be inserted from the outside of the toilet, and installation can be easily achieved by turning the bolt into the mounting member inserted into the insertion hole.

[0026] Furthermore, in a toilet according to an eleventh aspect of the present invention, the side surface that constitutes the outermost surface of the toilet body is configured so that the ceramic is exposed around the entire periphery of the toilet body.

[0027] With this configuration, even for full-skirt toilets that do not have any openings for access in the skirt portion on the side of the toilet and do not have any internal working space for manipulating the fixing member, the fixing member can be inserted into the mounting member from the rear wall side and fixed in place. As a result, the toilet 1 with the fixing member fixed can be attached to the mounting surface.

[0028] Furthermore, according to a twelfth aspect of the present invention, a method for fixing a toilet having a toilet body to a mounting surface comprises the steps of inserting a mounting member into an insertion hole formed in the rear wall of the toilet body facing the mounting surface, inserting and fixing a fixing member for fixing the toilet to the mounting surface into the mounting member from the rear wall side, and fixing the toilet body with the fixing member fixed to the mounting surface.

[0029] With this configuration, even if there is not enough working space within the toilet body to handle a fixing member of the required length, the mounting member can be inserted into the insertion hole and a fixing member of the required length can be attached to the toilet body from the rear wall side. When attaching a mounting member or fixing member inside the toilet, it can be installed using the minimum space ensured by the toilet's specifications. Therefore, a toilet with an attached fixing member can be easily installed on a mounting surface such as a toilet room wall or a toilet cabinet stand. This simplifies the installation work of the toilet on site.

[0030] Furthermore, a fixing method according to a thirteenth aspect of the present invention comprises the steps of inserting the mounting member into the insertion hole at the toilet manufacturing factory, and inserting and fixing the fixing member from the rear wall side at the toilet installation site.

[0031] With this configuration, the delicate task of inserting the mounting member into the insertion hole of the ceramic toilet can be performed at the manufacturing factory, while the worker can then insert and secure the fixing member from the rear wall side, and then secure the toilet body with the fixing member attached to the mounting surface at the toilet installation site. [Brief explanation of the drawings]

[0032] [Figure 1] FIG. 2 is a left side view of the toilet according to the embodiment of the present invention. [Figure 2] FIG. [Figure 3] FIG. [Figure 4] 4 is a cross-sectional view taken along line IV-IV in FIG. 2. [Figure 5] FIG. 2 is a perspective view showing a mounting member, a fixing member, and the like according to the first embodiment. [Figure 6] FIG. 5 is a partial cross-sectional view of a toilet bowl similar to FIG. 4, with a mounting member according to a second embodiment. [Figure 7] FIG. 2 is a schematic perspective view showing the mounting member, the fixing member, and the like. [Figure 8] FIG. 2 is a schematic perspective view of a first mounting member. [Figure 9] FIG. 4 is a schematic perspective view of a second mounting member. [Figure 10] FIG. 2 is a schematic perspective view of a toilet body with a reinforcing member attached thereto. [Figure 11] FIG. 2 is a schematic perspective view of a reinforcing member. [Figure 12] FIG. 10 is a perspective view of a second mounting member according to a third embodiment of the present invention. [Figure 13] FIG. 10 is a perspective view showing a mounting member, a fixing member, etc. according to a third embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0033] Hereinafter, embodiments of the toilet disclosed in this application will be described in detail with reference to the accompanying drawings. Note that the present invention is not limited to the embodiments shown below. It should be noted that the drawings are schematic, and the dimensional relationships and ratios of each element may differ from reality. The dimensional relationships and ratios may differ between the drawings.

[0034] <Overall configuration of the toilet> First, the overall configuration of a toilet 1 according to an embodiment will be described with reference to Figure 1. Figure 1 is a left side view of the toilet 1 according to an embodiment. Note that Figure 1 shows the toilet 1 attached to a mounting surface 10. Figure 1 also shows the mounting surface 10 and floor surface 11 in cross section.

[0035] For ease of understanding, FIG. 1 also illustrates a three-dimensional Cartesian coordinate system including a Z-axis whose positive direction is vertically upward. This Cartesian coordinate system may also be illustrated in other figures. In this Cartesian coordinate system, the negative direction of the Y-axis is defined as the forward direction, the positive direction of the Y-axis as the backward direction, the positive direction of the X-axis as the rightward direction, and the negative direction of the X-axis as the leftward direction. Therefore, in the following description, the X-axis direction may be referred to as the left-right direction, the Y-axis direction as the front-back direction, and the Z-axis direction as the up-down direction.

[0036] 1, the mounting surface 10 is a wall surface, and the toilet 1 according to the embodiment is a so-called wall-hung toilet that is attached to a wall surface. Note that in the embodiment, a flush toilet (flush toilet) is shown as an example of the toilet 1.

[0037] The toilet 1 comprises a toilet body 2 and a private parts cleansing device 3. The toilet body 2 is made of, for example, ceramic. Details of the toilet body 2 will be described later.

[0038] The private parts washing device 3 is equipped with a functional unit 4 that has a washing nozzle, a nozzle drive motor, a motor control device (none of which are shown). The private parts washing device 3 is installed on the top of the toilet body 2 for washing the user's private parts, and washes the user's private parts with washing water sprayed from the washing nozzle.

[0039] As described above, the toilet 1 is attached to a wall surface, which is the mounting surface 10. When the toilet 1 is attached to the wall surface, it is spaced apart from the floor surface 11. A water storage tank 12 for storing flush water is provided on the inside of the wall surface. Note that "inside the wall surface" refers to the side of the wall surface opposite the room (toilet room) in which the toilet 1 is installed.

[0040] In the toilet 1, flush water is supplied to the toilet body 2 via a water supply pipe 13 connected to a water storage tank 12. The toilet 1 also discharges waste together with the flush water from the toilet body 2 to a drain pipe 14.

[0041] <Toilet bowl configuration> Next, the toilet body 2 will be described with reference to Figs. 2 to 4. Fig. 2 is a rear view of the toilet body 2. Fig. 3 is a rear perspective view of the toilet body 2. Fig. 4 is a VV cross-sectional view of Fig. 2.

[0042] The toilet body 2 comprises a bowl section 20, a water supply section 21, a drain section 22, and an attachment member 23. An insertion hole 24 is formed on the top surface of the toilet body 2. In addition, in the ceramic toilet body 2, the side surface (the so-called skirt section) that covers the entire circumference of the bowl section 20 and forms the outermost surface of the toilet body 2 is configured so that the ceramic is exposed all around the toilet body 2 (the so-called full skirt), improving the exterior design.

[0043] Bowl section 20 has a bowl-shaped receiving surface that receives waste. Flush water is supplied to bowl section 20 from water storage tank 12 (see FIG. 1) via water supply piping 13 (see FIG. 1) and water supply section 21. Bowl section 20 also discharges waste together with the flush water via drain section 22 to drain piping 14 (see FIG. 1).

[0044] The water supply unit 21 includes a water supply connection pipe 21a connected to the connector. The water supply port 21b of the water supply connection pipe 21a is formed near the center in the left-right direction (horizontal direction). That is, the water supply connection pipe 21a opens near the center in the left-right direction.

[0045] Drain section 22 connects the lower end of bowl section 20 to drain pipe 14 and discharges waste together with flush water into drain pipe 14. Drain section 22 is equipped with drain connection pipe 22a which is connected to a connector provided on the wall surface. Drain outlet 22b of drain connection pipe 22a is formed near the center in the left-right direction, below water supply port 21b. In addition, drain section 22 is provided with trap section 22c where accumulated water is formed, between the lower end of bowl section 20 and drain connection pipe 22a.

[0046] A water supply hose 15 (see Figure 1) and a power cable 16 (see Figure 1) routed inside the toilet body 2 are inserted into the insertion hole 24. The water supply hose 15 and the power cable 16 are pulled out from inside the toilet body 2 to the top surface of the toilet body 2 via the insertion hole 24 and connected to the private parts cleansing device 3 (see Figure 1).

[0047] An insertion hole 25 and a recess 26 are formed in the rear wall 2a of the toilet body 2, which faces the wall surface that is the mounting surface 10. A mounting member 23 is attached to the insertion hole 25. The mounting member 23 will be described in detail later.

[0048] The recess 26 is formed so as to recess forward (negative direction of the Y axis), i.e., toward the interior of the toilet body 2, in order to attach the drain connection pipe 22a to a connector provided on the wall surface. The recess 26 is formed around the drain connection pipe 22a and includes a bottom portion 26a and a side wall portion 26b. The recess 26 is formed so that the drain connection pipe 22a protrudes rearward (positive direction of the Y axis), i.e., toward the wall surface, from the bottom portion 26a.

[0049] Furthermore, the recess 26 is formed with an access hole 26c so that an operator can insert their hand from the rear side and access the inside of the toilet body 2 before attaching the toilet body 2 to the attachment surface 10. Specifically, the access hole 26c is formed across the bottom 26a of the recess 26 and the side wall 26b of the recess 26.

[0050] The work holes 26c are adjacent to the drain connection pipe 22a in the left-right direction and are formed on both sides of the drain connection pipe 22a. The work holes 26c are also formed in the up-down direction. The upper work hole 26c is formed to extend between the drain connection pipe 22a and the insertion hole 25. The work holes 26c are also formed so that the opening area becomes smaller as they go upward, i.e., toward the insertion hole 25. The work holes 26c are also formed so that the outer peripheral edge of the work hole 26c on the outer left-right direction is more inward than the outer peripheral edge of the insertion hole 25 on the outer left-right direction in the left-right direction (horizontal direction). In other words, the recess 26 is formed so that the rear wall 2a is thick at both left-right ends.

[0051] Furthermore, the water supply hose 15 and the power cable 16 are inserted into the working hole 26c. That is, the working hole 26c also functions as an insertion hole into which the water supply hose 15 and the power cable are inserted from the mounting surface 10.

[0052] FIG. 4 is a diagram showing the mounting member 23 according to the first embodiment of the present invention, and is a cross-sectional view taken along line IV-IV in FIG. 2, and FIG. 5 is a perspective view showing the mounting member, fixing member, etc. according to the first embodiment. As shown in Figure 4, a toilet 1 having a toilet body 2 is attached to a mounting surface 10. The toilet 1 is equipped with an insertion hole 25 formed approximately horizontally in the rear wall 2a of the toilet body 2 facing the mounting surface 10, and a mounting member 23 inserted into the insertion hole 25. The mounting member 23 includes a head 23m that is larger in diameter than the insertion hole 25, and legs 23n that extend from the head 23m, pass through the insertion hole 25, and engage with a first outer periphery 25a of the insertion hole 25. The first outer periphery 25a is a relatively flat surface located on the rear wall 2a side and extending in the vertical direction, and is adjacent to the insertion hole 25. As shown in FIG. 5, the head 23m and leg portions 23n of the mounting member 23 are integrally formed, and the leg portions 23n include four legs 23n1 extending axially and radially outward from the head 23m, and four protrusions 23n2 extending radially outward from each leg 23n1 at the opposite end of the head 23m.

[0053] The mounting member 23 is made of a material such as resin, and the head 23m has sufficient rigidity to hold the toilet 1 on the mounting surface 10. On the other hand, the legs 23n1 of the legs 23n are flexible, and by pinching the legs 23n1, the worker can elastically deform the legs 23n radially inward, allowing the mounting member 23 to be inserted into the insertion hole 25 from inside the toilet body 2. The legs 23n inserted into the insertion hole 25 return due to elastic force and engage with the outer peripheral surface of the insertion hole 25, preventing them from coming out of the insertion hole 25. In other words, the diameter of the projections 23n2 positioned on the circle in an unloaded state (the diameter of the circle) is greater than the diameter of the insertion hole 25.

[0054] A recess 23c is formed in the head 23m of the mounting member 23, and the recess 23c accommodates a nut 27. In this embodiment, the recess 23c is formed in a hexagonal shape, and the nut 27 is a hexagonal nut. The nut 27 may also be adhered to the recess 23c so as not to move in the axial direction.

[0055] The toilet 1 also includes a fixing member 17 for fixing the toilet 1 to the mounting surface 10, which is inserted into and fixed to the mounting member 23 from the rear wall 2a side. Here, the fixing member 17 is a threaded bolt (hereinafter also referred to as "threaded bolt 17" as appropriate), which has a linearly extending shaft 17a and threads 17b formed on the outer surface of the shaft 17a (shown only between nuts 31a and 31b in Figure 5). Generally, threaded bolts 17 are long and have a large shaft diameter, so if the internal space of the toilet body 2 is limited, it is difficult for an operator to insert the threaded bolt 17 into the insertion hole 25 from inside the toilet body 2. In this embodiment, an operator can insert the threaded bolt 17 from the outside of the toilet 1, i.e., from the rear wall 2a side, and screw it into the nut 27.

[0056] A washer 29 is passed through the cut bolt 17, and the washer 29 is in contact with the second outer periphery 25b of the insertion hole 25, which is the contact surface provided in the rear wall 2a of the toilet 1. Furthermore, a nut 27b is attached to the cut bolt 17. This secures the mounting member 23 and fixing member 17 to the toilet 1.

[0057] Furthermore, a nut 31a is attached to the threaded bolt 17. In this state, the toilet 1 is passed through the mounting hole 10a in the mounting surface 10, the nut 31a comes into contact with one side of the mounting surface 10, and a nut 31b is attached to the end of the threaded bolt 17 protruding from the mounting hole 10a. In this way, the toilet 1 is fixed to the mounting surface 10.

[0058] Here, the mounting surface 10 in the present invention includes the wall surface of the toilet room and the stand of the toilet cabinet.

[0059] Fig. 6 is a partial cross-sectional view of a toilet 1 similar to Fig. 4, equipped with a mounting member 23 according to a second embodiment. Fig. 7 is a schematic perspective view showing the mounting member 23 and fixing member 17. Fig. 8 is a schematic perspective view of the first mounting member 23a. Fig. 9 is a schematic perspective view of the second mounting member 23b. 6, in this embodiment, the mounting member 23 includes a first mounting member 23a having a diameter larger than that of the insertion hole 25, and a second mounting member 23b having one end threaded into the first mounting member 23a through the insertion hole 25 and the other end engaged with a second outer periphery 25b of the insertion hole 25. The second outer periphery 25b is a relatively flat surface extending in the vertical direction, and is located rearward (in the positive direction of the Y axis) of the first outer periphery 25a.

[0060] As shown in Figures 6 and 8, the first mounting member 23a is cylindrical and has a hexagonal recess 23c at its top and a thread 23k formed on the cylindrical inner circumferential surface at its bottom. The thread 23k is formed as an internal thread. A nut 27 for fixing the cut bolt 17 is housed in the recess 23c formed in the first mounting member 23a. The nut 27 is a hexagonal nut.

[0061] 6 and 9, the second mounting member 23b has a disk portion 23d, a cylindrical hollow shaft portion 23f extending vertically from the center of the disk portion 23d, and a screw thread 23g formed on the outer side of the tip of the hollow shaft portion 23f. The screw thread 23g is formed as a male screw. The second mounting member 23b also has four raised portions 23e formed intermittently in the circumferential direction around the hollow shaft portion 23f on the disk portion 23d, recesses 23l formed in the circumferential direction between the raised portions 23e, and a through hole 23j formed in the center of the hollow shaft portion 23f.

[0062] 6 and 7, the first mounting member 23a is placed inside the toilet body 2, and the second mounting member 23b is attached to the first mounting member 23a from the outside of the toilet body 2, i.e., from the rear wall 2a side. Furthermore, the raised portion 23e and the recessed portion 23l contact and fit into the first outer periphery 25a of the insertion hole 25 on the rear wall 2a side, and the disk portion 23d contacts the second outer periphery 25b of the insertion hole 25, which is a contact surface provided on the rear wall 2a of the toilet bowl 1.

[0063] As a result, the first attachment member 23a and the second attachment member 23b are securely attached to the toilet body 2. Therefore, the worker can attach the toilet body 2 in this state to the attachment surface 10.

[0064] Although not shown, in the state shown in Figure 6, a washer may be attached to the disk portion 23d from the right side in the figure, and a nut may be attached to the washer from the right side in the figure. This will more firmly secure the first and second mounting members 23a and 23b to the toilet body 2.

[0065] Figure 10 is a schematic perspective view of the toilet body 2 attached with the reinforcing member 28. Figure 11 is a schematic perspective view of the reinforcing member 28. It is difficult to manufacture a fragile ceramic toilet body 2 with tight manufacturing tolerances, and the diameter of the insertion hole and other factors have a certain amount of play or allowance relative to the bolt diameter. As can be seen from the cross-sectional view of Figure 4, a bolt with a larger diameter than conventional bolts is used as the cut bolt 17, but gaps exist between the leg 23n and the shaft 17a of the cut bolt 17, and between the leg 23n and the inner wall of the insertion hole 25. Therefore, even if the cut bolt 17 is fixed to the toilet body 2 with the washer 29 and nut 27b, there is a risk that the cut bolt 17 will shift left and right or up and down due to the weight of the toilet 1 and a user sitting on the toilet 1.

[0066] Therefore, a reinforcing member 28 is attached to the toilet body 2 shown in Figure 10. Specifically, the mounting members 23 according to the first embodiment shown in Figures 4 and 5 are attached to each of the two insertion holes 25, and threaded bolts 17 are attached to these mounting members 23. Reinforcing members 28 are inserted into the threaded bolts 17, and the reinforcing members 28 are firmly fixed to the rear wall 2a of the toilet body 2 with nuts 27b attached to the threaded bolts 17. In this way, the reinforcing members 28 suspend and fix multiple threaded bolts 17 (two in this embodiment). Therefore, regardless of the presence of gaps, the threaded bolts 17 are prevented from shifting left and right or up and down due to the weight of the toilet 1 and the user sitting on the toilet 1.

[0067] As shown in FIG. 11 , the reinforcing member 28 is a thin, plate-like metal member having a linearly extending base 28a and rectangular extensions 28b formed at both ends of the base 28a and wider than the base 28a. The extensions 28b, located at both ends of the reinforcing member 28, have holes 28c formed in the center thereof through which the threaded bolts 17 pass. The use of the metal reinforcing member 28 allows the reinforcing member 28 to be firmly fastened together with the threaded bolts 17 and nuts 27b, also made of metal. Furthermore, the use of the thin, plate-like reinforcing member 28 allows the toilet bowl 1 to be mounted close to the mounting surface 10 even in a small toilet room, thereby saving space. However, the reinforcing member 28 may be made of resin if sufficient strength is obtained.

[0068] Fig. 12 is a perspective view of a second mounting member 23b according to a third embodiment of the present invention. Fig. 13 is a perspective view showing a mounting member 23, a fixing member 17, and the like according to the third embodiment of the present invention. The mounting member 23 in this embodiment has a first mounting member 23a and a second mounting member 23b. The second mounting member 23b has a flat, linearly extending connecting portion 23h and square-shaped end portions 23i formed at both ends of the connecting portion 23h and wider than the connecting portion 23h. The second mounting member 23b further has a hollow shaft portion 23f extending vertically from the center of the end portion 23i and a screw thread 23g formed on the outer tip of the hollow shaft portion 23f. The screw thread 23g is formed as a male screw. The hollow shaft portion 23f is hollow or cylindrical, and therefore has a through hole 23j formed in the center of the hollow shaft portion 23f. The through hole 23j functions to insert a threaded bolt 17.

[0069] As shown in Figure 13, the first mounting member 23a, which has an internal thread, can be attached and fixed to the external thread 23g of the second mounting member 23b. Therefore, the cut bolt 17 can be inserted from the back side of the second mounting member 23b and attached and fixed to the nut 27 housed in the recess 23c of the first mounting member 23a. The second mounting member 23b and the first mounting member 23a, which have connecting portions 23h, firmly secure the two cut bolts 17 to the toilet body 2 not only in the axial direction of the cut bolts 17 but also in a direction perpendicular to the axial direction. Therefore, the cut bolts 17 can be prevented from shifting left and right or up and down due to the weight of the toilet 1 and the user sitting on the toilet 1.

[0070] Furthermore, even if the internal space of the toilet body 2 is narrow and there is no space to maneuver a long bolt, the hollow shaft portion 23f of the second mounting member 23b can be inserted into the insertion hole 25 of the toilet body 2, and then the first mounting member 23a, which has a shorter shaft length, can be attached to the hollow shaft portion 23f from inside the toilet body 2.

[0071] <Toilet body installation procedure> Next, a mounting procedure for mounting the toilet body 2 to the stand of the toilet cabinet, which is the mounting surface 10, using the mounting member 23 of the first embodiment shown in FIG. 4 will be described.

[0072] When attaching the toilet body 2 to the stand, first, the attachment member 23 with the nut 27 is attached to the toilet body 2. Specifically, the worker inserts their arm into the toilet body 2 through the access hole 26c, places the attachment member 23 from the inside, inserts the cut bolt 17 into the insertion hole 25 from the rear wall 2a side of the toilet body 2, and screws the cut bolt 17 into the nut 27 of the attachment member 23 to attach it.

[0073] The work hole 26c is formed between the drain connection pipe 22a and the insertion hole 25. Therefore, the worker can easily place the mounting member 23 at a predetermined mounting position on the back side of the insertion hole 25 (inside the toilet body 2).

[0074] Furthermore, the access hole 26c is formed from the bottom 26a of the recess 26 to the side wall 26b of the recess 26. This allows for a greater range of motion for the worker's arms, enabling the worker to easily attach the attachment member 23 to the toilet body 2.

[0075] Next, the worker passes the washer 29 onto the cut bolt 17 and tightens the nut 27b with a jig to secure the mounting member 23 and the cut bolt 17 to the toilet body 2. Furthermore, the worker threads the nut 31a onto the cut bolt 17. When using the reinforcing member 28, instead of the washer 29, two cut bolts 17 are passed through the holes 28c of the reinforcing member 28, and the nuts 27b are tightened with a jig to fix the mounting member 23, the cut bolts 17 and the reinforcing member 28 to the toilet body 2.

[0076] Next, the water supply hose 15 and the power cable 16 are pulled out to the top surface of the toilet body 2. Specifically, the worker inserts the water supply hose 15 and the power cable 16 into the access hole 26c, inserts his or her arm into the toilet body 2 through the access hole 26c, and pulls the water supply hose 15 and the power cable 16 out to the top surface through the insertion hole 24.

[0077] An access hole 26c is formed between the drain connection pipe 22a and the insertion hole 25, and extends from the bottom 26a of the recess 26 to the side wall 26b of the recess 26. Therefore, the worker can easily pull out the water supply hose 15 and the power cable 16 from the insertion hole 24 to the upper surface, just as when attaching the mounting member 23.

[0078] Next, the toilet body 2 is attached to the stand. Specifically, the worker inserts the fixing member 17 fixed to the toilet body 2 into the mounting hole 10a of the stand. Then, the worker tightens the nut 31b with a jig from the back side of the stand, fixing the toilet body 2 to the stand.

[0079] By forming the working hole 26c in the vertical direction, it is possible to prevent the water supply hose 15 and the power cable 16 from bending left and right (horizontally) when attaching the toilet body 2 to the fixing member 17. This makes it possible to prevent the water supply hose 15 and the power cable 16 from being pinched between the toilet body 2 and the stand.

[0080] Through the above steps, the toilet body 2 is attached to the stand.

[0081] When attaching the toilet body 2 to the stand of the toilet cabinet, which is the attachment surface 10, using the attachment member 23 of the second embodiment shown in Figures 6 to 9, the worker inserts his / her arm into the toilet body 2 through the access hole 26c, places the first attachment member 23a against the insertion hole 25 from the inside, and inserts the second attachment member 23b into the insertion hole 25 from the rear wall 2a side of the toilet body 2, screws it in, and fixes both to the toilet body 2.

[0082] The subsequent steps are the same as when the mounting member 23 according to the first embodiment is used.

[0083] Next, we will explain the procedure for attaching the toilet body 2 to the stand of the toilet cabinet, which is the attachment surface 10, using the attachment member 23 according to the third embodiment shown in Figures 12 and 13. In this case, the worker inserts the second attachment member 23b into the insertion hole 25 from the rear wall 2a side of the toilet body 2, inserts his arm into the toilet body 2 through the working hole 26c, and screws the first attachment member 23a equipped with the nut 27 onto the cut bolt 17 to attach them, and secure both to the toilet body 2.

[0084] The subsequent steps are the same as when the mounting member 23 according to the first embodiment is used.

[0085] <Action and effect> As described above, according to the embodiment of the present invention, a toilet 1 having a toilet body 2 and attached to an attachment surface 10 is provided with an insertion hole 25 formed in the rear wall 2a of the toilet body 2 facing the attachment surface 10, an attachment member 23 inserted into the insertion hole 25, and a fixing member 17 inserted into and fixed to the attachment member 23 from the side of the rear wall 2a for fixing the toilet 1 to the attachment surface 10.

[0086] With this configuration, even if the space within the toilet body 2 is limited, i.e., even if there is not enough working space within the toilet body 2 to maneuver a fixing member 17 of the required length, a fixing member 17 of the required length can be attached to the toilet body 2 in advance. When attaching the mounting member 23 and fixing member 17 inside the toilet 1, the fixing member 17 can be attached using the minimum space ensured by the specifications of the toilet 1. Therefore, the toilet 1 with the fixing member 17 attached can be easily installed on the mounting surface 10, such as the wall of a toilet room or the stand of a toilet cabinet. This simplifies the installation of the toilet 1 on site.

[0087] Furthermore, in the toilet 1, a fixed receiving member equipped with a female thread portion for fixing the fixing member 17 is housed in a recess 23c formed in the mounting member 23.

[0088] According to this configuration, the worker can easily fix the attachment member 23 and the fixing member 17 by turning the fixing member 17 into the fixing receiving member.

[0089] In addition, in the toilet 1, the mounting member 23 includes a head 23m that is larger in diameter than the insertion hole 25, and a leg 23n that extends from the head 23m, passes through the insertion hole 25, and engages with a first outer periphery 25a of the insertion hole 25.

[0090] According to this configuration, even in a small work space, a worker can insert the leg portion 23n into the insertion hole 25, thereby easily engaging and attaching the mounting member 23 to the insertion hole 25.

[0091] Furthermore, in the toilet 1, the legs 23n are elastically deformable in the radial direction.

[0092] According to this configuration, even in a small work space, a worker can easily engage and attach the mounting member 23 with the insertion hole 25 by utilizing the elastic force of the leg portion 23n.

[0093] In addition, in the toilet 1, the mounting member 23 includes a first mounting member 23a having a larger diameter than the insertion hole 25, and a second mounting member 23b having one end screwed into the first mounting member 23a through the insertion hole 25 and the other end engaging with the second outer peripheral portion 25b of the insertion hole 25.

[0094] With this configuration, the mounting member 23 can be fixed to the toilet bowl 1 by inserting the relatively large-diameter second mounting member 23b into the relatively large-diameter insertion hole 25 and screwing it into the first mounting member 23a. This reduces the radial play between the insertion hole 25 and the mounting member 23, and prevents the mounting member 23 and the fixing member 17 from wobbling or shifting left and right or up and down.

[0095] In addition, in the toilet 1, the second mounting member 23b includes an elongated connecting portion 23h and two hollow shaft portions 23f extending perpendicular to the connecting portion 23h and each having a screw thread 23g that engages with the head 23m, and the fixing member 17 is inserted into the hollow shaft portions 23f.

[0096] According to this configuration, two hollow shaft portions 23f connected by connecting portions 23h of second mounting member 23b can be inserted into two insertion holes 25 and fixed to first mounting member 23a. Therefore, fixing member 17 inserted into hollow shaft portions 23f is also fixed in the axial and radial directions, so rattle and left-right and up-down displacement of mounting member 23 and fixing member 17 can be suppressed.

[0097] Additionally, in the toilet 1, the second mounting member 23b has a raised portion 23e on the surface facing the second outer periphery 25b of the insertion hole 25.

[0098] According to this configuration, even when the fixing member 17 inserted into the second mounting member 23b is rotated and attached to the first mounting member 23a, frictional force is generated between the raised portion 23e and the second outer peripheral portion 25b of the insertion hole 25, thereby preventing the second mounting member 23b from rotating together with the fixing member 17 (spinning freely).

[0099] Furthermore, the toilet 1 is formed with a plurality of insertion holes 25, and an attachment member 23 and a fixing member 17 are attached to each of the insertion holes 25, and further includes a reinforcing member 28 that suspends and fixes the plurality of fixing members 17.

[0100] With this configuration, the reinforcing member 28 connects the fixing members 17 that are inserted into and attached to the multiple insertion holes 25 to each other, making it possible to more firmly fix the fixing members 17 to the toilet bowl 1. Even if there is a radial gap between the fixing members 17 and the insertion holes 25, it is possible to prevent the fixing members 17 from moving left and right, up and down due to the weight of the toilet bowl 1 or a user sitting on it.

[0101] Furthermore, in the toilet 1, the reinforcing member 28 is a long, thin plate-like member, with holes 28c at both ends through which the fixing members 17 pass.

[0102] With this configuration, the toilet bowl 1 can be attached as closely as possible to the attachment surface 10, thereby saving space and enabling the toilet room to be used more effectively.

[0103] Furthermore, in the toilet 1, the fixing member 17 is a bolt.

[0104] With this configuration, a bolt with a long shaft length can be inserted from the outside of the toilet 1, and installation can be easily achieved by turning the bolt into the mounting member 23 inserted into the insertion hole 25.

[0105] Furthermore, in the toilet 1, the side surface that constitutes the outermost surface of the toilet body 2 is configured so that the ceramic is exposed around the entire periphery of the toilet body 2.

[0106] With this configuration, fixing member 17 can be inserted and fixed into mounting member 23 from the rear wall 2a side, even for a full-skirt toilet 1 that does not have an opening for work in the skirt portion on the side of the toilet, and does not have any internal working space for manipulating fixing member 17. Therefore, the toilet 1 with fixing member 17 fixed can be attached to mounting surface 10.

[0107] In addition, the method of fixing a toilet 1 having a toilet body 2 to a mounting surface 10 includes the steps of inserting a mounting member 23 into an insertion hole 25 formed in the rear wall 2a of the toilet body 2 facing the mounting surface 10, inserting and fixing a fixing member 17 for fixing the toilet 1 to the mounting surface 10 into the mounting member 23 from the side of the rear wall 2a, and fixing the toilet body 2 with the fixing member 17 fixed to it to the mounting surface 10.

[0108] With this configuration, even if there is not enough working space within the toilet body 2 to handle a fixing member 17 of the required length, the mounting member 23 can be inserted into the insertion hole 25, and a fixing member 17 of the required length can be attached to the toilet body 2 from the rear wall 2a side. When attaching the mounting member 23 or fixing member 17 inside the toilet 1, the mounting member 23 or fixing member 17 can be attached using the minimum space ensured by the specifications of the toilet 1. Therefore, the toilet 1 with the fixing member 17 attached can be easily installed on the mounting surface 10, such as the wall of a toilet room or the stand of a toilet cabinet. This simplifies the installation of the toilet 1 on site.

[0109] Furthermore, in the fixing method, the mounting member 23 is inserted into the insertion hole 25 at the toilet 1 manufacturing factory, and at the toilet 1 installation site, the fixing member 17 is inserted from the rear wall 2a side and fixed.

[0110] With this configuration, the delicate task of inserting the mounting member 23 into the insertion hole 25 of the ceramic toilet 1 can be performed at the manufacturing factory. Then, the work of inserting and fixing the fixing member 17 from the rear wall 2a side, and the installation work of fixing the toilet body 2 with the fixing member 17 fixed to the mounting surface 10 can be performed by a worker at the toilet 1 installation site. In the embodiment, a cut bolt is used as the bolt, but other types of bolts may be used as long as they are shaped so that they can be inserted from the outside of the toilet bowl and fixed to the female threaded portion of the fixing receiving member. [Explanation of symbols]

[0111] 1 toilet bowl 2 Toilet body 2a Back wall 10 Mounting surface 17 Fixing member 23 Mounting material 23a head 23a First mounting member 23b Engagement part 23b Second mounting member 23c Recess 23e ridge 23h connection part 23g thread 23f Hollow shaft part 25 Insertion hole 25a outer periphery 25b Outer periphery 27 Nut 28 Reinforcement member

Claims

1. A toilet having a toilet body and attached to a mounting surface, an insertion hole formed in a rear wall of the toilet body facing the mounting surface; a mounting member inserted into the insertion hole; a fixing member for fixing the toilet bowl to the mounting surface, the fixing member being inserted into and fixed to the mounting member from the rear wall side; A toilet equipped with:

2. A fixing receiving member having a female thread portion for fixing the fixing member is housed in a recess formed in the mounting member.

2. The toilet according to claim 1.

3. The mounting member includes a head portion having a diameter larger than that of the insertion hole, and a leg portion extending from the head portion, passing through the insertion hole, and engaging with a first outer periphery of the insertion hole.

2. The toilet according to claim 1.

4. The legs are elastically deformable in the radial direction.

4. The toilet according to claim 3.

5. The mounting member includes a first mounting member having a diameter larger than that of the insertion hole, and a second mounting member having one end threaded into the first mounting member through the insertion hole and the other end engaged with a second outer periphery of the insertion hole.

2. The toilet according to claim 1.

6. the second mounting member includes an elongated connecting portion and two hollow shaft portions extending perpendicular to the connecting portion and each having a thread for engaging with the first mounting member; The fixing member is inserted through the hollow shaft portion.

6. The toilet according to claim 5.

7. the second mounting member has a raised portion on a surface facing the first outer periphery of the insertion hole; 6. The toilet according to claim 5.

8. A plurality of the insertion holes are formed, The mounting member and the fixing member are mounted in the respective insertion holes, Further provided is a reinforcing member that suspends and fixes the plurality of fixing members.

2. The toilet according to claim 1.

9. The reinforcing member is an elongated plate-like member having holes at both ends through which the fixing members pass.

9. The toilet according to claim 8.

10. The fixing member is a bolt.

2. The toilet according to claim 1.

11. The side surface constituting the outermost surface of the toilet body is configured so that the ceramic is exposed around the entire periphery of the toilet body.

2. The toilet according to claim 1.

12. A method for fixing a toilet having a toilet body to a mounting surface, comprising: a step of inserting a mounting member into an insertion hole formed in a rear wall of the toilet body facing the mounting surface; a step of inserting and fixing a fixing member for fixing the toilet bowl to the mounting surface into the mounting member from the rear wall side; a step of fixing the toilet body to which the fixing member is fixed to the mounting surface; A fixing method having the following features.

13. a step of inserting the mounting member into the insertion hole at a manufacturing plant of the toilet; At the installation site of the toilet, inserting and fixing the fixing member from the rear wall side; 13. The method of claim 12, further comprising:

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