Floor-standing flush toilet

Abstract

To provide a floor-standing flush toilet that increases the design flexibility of the entire toilet bowl while reducing lateral movement of the toilet bowl. [Solution] The floor-standing flush toilet 1 of the present invention comprises a toilet body 2 and a fixing device 10 positioned behind the bowl portion 4 and fixing the toilet body to the floor surface F. The lower rear and left and right sides of the toilet body are provided with first round holes 12 and second round holes 12, respectively, which are fixed by the fixing device. The fixing device comprises first bolt members 20 and second bolt members 20 that are inserted into each round hole of the toilet body, and first bush members 22 and second bush members 22 that are attached centripetently to each round hole. Each bush member is installed interposed between each round hole and each bolt member.

Description

Technical Field

[0001] The present invention relates to a flush toilet, and more particularly to a floor-mounted flush toilet fixed to the floor surface.

Background Art

[0002] Conventionally, as a floor-mounted flush toilet fixed to the floor surface, for example, as described in Patent Document 1, there is known a toilet body fixed to the floor surface via a drain socket. In such a conventional floor-mounted flush toilet, it is fixed by a fixture in front of the bottom of the toilet body.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] However, in the conventional floor-mounted flush toilet described in Patent Document 1 mentioned above, since it is fixed by a fixture in front of the bottom of the toilet body, the space in the front area of the toilet body is occupied by the fixture or the like. For this reason, the front projection dimension of the entire toilet body becomes large, and there is a problem that the degree of freedom in the design of the entire toilet body decreases. In addition, in a conventional floor-mounted flush toilet, for example, when a wheelchair user moves from the wheelchair to the toilet body, a horizontal load acts on the toilet body, and there is also a problem that so-called lateral displacement of the toilet body occurs. Therefore, while increasing the degree of freedom in the design of the entire toilet body, how to reduce the lateral displacement of the toilet body has also become an issue demanded in recent years.

[0005] Therefore, the present invention has been made to solve the problems of the prior art described above and the issues that have been requested in recent years, and aims to provide a floor-standing flush toilet that can reduce lateral displacement of the toilet bowl while increasing the design freedom of the entire toilet bowl. [Means for solving the problem]

[0006] To solve the above-mentioned problems, the present invention provides a floor-standing flush toilet that is fixed to the floor surface, comprising: a toilet body having a bowl portion and a drain trap portion for discharging waste from the bowl portion; and a fixing device positioned behind the bowl portion of the toilet body and fixing the toilet body to the floor surface, wherein a first round hole and a second round hole are provided on the lower rear and left and right sides of the toilet body, respectively, which are fixed by the fixing device, and the fixing device comprises a first bolt member and a second bolt member inserted into the first round hole and the second round hole of the toilet body, respectively, and a first bush member and a second bush member attached centripetically to the first round hole and the second round hole, respectively, wherein the first bush member and the second bush member are installed interposed between the first round hole and the second round hole, respectively, and the first bolt member and the second bolt member inserted into the respective round holes. In the present invention configured in this way, the fixing device for securing the toilet body to the floor is positioned behind the bowl portion of the toilet body. This eliminates the need to provide a means for securing the toilet body at the front, and the toilet body can be securely fixed to the floor using only the fixing device located behind the bowl portion. Therefore, when fixing the toilet bowl to the floor, the number of fixing points to the floor can be reduced, thus reducing the burden on the floor. Furthermore, by reducing the space occupied by the fixing device in the front area of ​​the toilet bowl and thus reducing the overall projection dimension of the toilet bowl, it is possible to increase the design flexibility of the entire toilet bowl, improve ease of installation, and enhance its aesthetic appeal. On the other hand, conventionally, for example, when the toilet bowl is made of ceramic, due to the unique manufacturing errors (dimensional errors, shape errors) inherent in ceramic molding, the dimensions of the first and second round holes in the toilet bowl, to which the first and second bolt members of the fixing device are attached, must be designed to be larger than the diameter dimensions of the first and second bolt members, respectively. However, when a horizontal load is applied to the toilet bowl, such as when a user sits on it, there is a problem that lateral displacement occurs due to looseness between the first and second round holes in the toilet bowl and the first and second bolt members, respectively. In contrast, in the present invention, the first bushing member and the second bushing member are mounted centripetically with respect to the first and second round holes of the toilet bowl body, respectively, and are also mounted interposed between the first bolt member and the second bolt member inserted into each of these round holes. As a result, the looseness between each round hole of the toilet bowl body and each bolt member can be suppressed by the bushing members. Therefore, lateral displacement when a horizontal load is applied to the toilet bowl can be reduced more reliably.

[0007] In the present invention, preferably, the fixing device further comprises a floor fixing member provided at the lower part of the toilet body and fixed to the floor surface, the floor fixing member comprising a fixing base portion fixed to the floor surface, each of the first bolt member and the second bolt member comprising a threaded portion provided on its circumferential surface and a head portion provided at one end in the axial direction, and the fixing device further comprises nut members which are attached to the respective threaded portions of the first bolt member and the second bolt member when they are inserted into the first round hole and the second round hole, respectively. In the present invention configured as described above, when the toilet bowl is directly fixed to the floor surface with the first bolt member and the second bolt member, it is necessary to drill pilot holes in the floor surface. Furthermore, if the toilet bowl is made of ceramic, considering the variations in ceramic, it is necessary to adjust the position of the pilot holes each time the toilet bowl is fixed. However, according to the present invention, the first bolt member and the second bolt member of the fixing device, which are inserted into the first and second round holes of the toilet bowl body respectively, and the nut member corresponding to each of these bolt members, are configured to fix the toilet bowl body to the floor surface. This eliminates the need to adjust the relative positions of each round hole in the toilet bowl body, each bolt member and each nut member of the fixing device, thereby improving ease of installation.

[0008] In the present invention, preferably, the fixing base portion includes a restricting portion that restricts upward movement or rotation of the first bolt member and the second bolt member, respectively, when they are inserted into the first round hole and the second round hole, respectively, in a position where their heads face downwards. Each of the nut members is attached from above to the threaded portions of the first bolt member and the second bolt member, respectively, when they are inserted into the first round hole and the second round hole, respectively. The other ends of the first bolt member and the second bolt member are inserted through the first bush member and the second bush member, respectively, and the threaded portions are fixed by the nut members. In the present invention configured as described above, when fixing the toilet bowl to the floor surface, due to the structure of each round hole in the toilet bowl and each bolt member of the fixing device, the installer will need to rotate each bolt member above each round hole or similar location. Furthermore, if the toilet bowl itself is made of ceramic, for example, if a nut is provided below each round hole in the ceramic toilet bowl, and the heads of the bolts are facing upwards, then it is necessary to insert the bolts into each round hole in the ceramic from above. Therefore, a space larger than the length of each bolt is required above each round hole in the ceramic. Therefore, in this invention, the heads of each bolt member are positioned below each round hole, and each nut member is tightened from above. As a result, the toilet bowl body, which is made of ceramic, can be fixed if there is enough space above each round hole equal to the height of the threaded portion of each bolt member protruding from each round hole and the height of each nut member, thus reducing the space required above each round hole. This allows for greater design and shape flexibility regarding the toilet bowl and its fixing device.

[0009] In the present invention, preferably, the fixed base portion includes a first movable region and a second movable region that hold the heads of the first bolt member and the second bolt member so as to be slidable in the horizontal direction, and each of the first movable region and the second movable region is provided with a recessed receiving portion that restricts the rotation of the heads of the first bolt member and the second bolt member. In the present invention configured as described above, the first movable region and the second movable region of the fixed base are each provided with a recessed receiving portion that holds the axial ends of the first bolt member and the second bolt member so as to be slidable in the horizontal direction and restricts the rotation of the heads of each bolt member, thereby preventing the bolt members from rotating together when tightening each nut member.

[0010] In the present invention, preferably, the drain trap section is provided with an outlet section located behind the bowl section, the floor fixing member is a drain socket connected to the outlet section of the drain trap section of the toilet body, and the first movable area and the second movable area are provided below and on both the left and right sides of the drain socket, respectively. In the present invention configured in this way, the floor fixing member of the fixing device is provided as a drain socket connected to the outlet of the drain trap section located behind the bowl portion of the toilet bowl body. This eliminates the need to fix the toilet bowl body in front of it, and prevents it from being exposed, thus ensuring that the toilet bowl body is securely fixed to the floor surface. Therefore, the space occupied by the fixing device in the front area of ​​the toilet bowl can be reduced, the overall projection dimension of the toilet bowl can be reduced, and the design flexibility of the toilet bowl as a whole can be increased. Furthermore, since the first and second bolt members of the fixing device provided in part of the drain socket can move within the respective areas of the first and second movable regions, lateral displacement when a horizontal load is applied to the toilet body can be restricted to within the respective movable regions of each bolt member, thereby reducing it more reliably.

[0011] In the present invention, preferably, each of the first bush member and the second bush member is a generally annular member, and a plurality of ribs are provided on its outer circumferential surface at intervals in the circumferential direction. In the present invention configured in this way, the outer circumferential surfaces of the first bush member and the second bush member, which are generally annular members, are provided with a plurality of ribs spaced apart in the circumferential direction. Furthermore, when the first bushing member and the second bushing member of the fixing device are installed interposed between the first round hole and the second round hole of the toilet bowl body and the first bolt member and the second bolt member, the ribs of the first bushing member and the second bushing member are crushed, thereby filling the gaps between the first round hole and the second round hole and the first bolt member and the second bolt member. Therefore, lateral displacement when a horizontal load is applied to the toilet bowl can be reduced more reliably.

[0012] In the present invention, preferably, the fixing device further comprises a first fastener and a second fastener, respectively, which are attached to cover the first movable region and the second movable region, respectively, and each of the first fastener and the second fastener restricts the movable range of the first bolt member and the second bolt member with respect to the first movable region and the second movable region, respectively. In the present invention configured in this manner, the first fastener and the second fastener of the fixing device are each mounted to cover the first movable area and the second movable area, respectively, and the movable range of the first bolt member and the second bolt member can be appropriately restricted. This can more reliably reduce lateral displacement when a horizontal load acts on the toilet body.

Advantages of the Invention

[0013] According to the floor-mounted flushing toilet of the present invention, it is possible to reduce the lateral displacement of the toilet body while increasing the degree of freedom in the overall design of the toilet body.

Brief Description of the Drawings

[0014] [Figure 1] Fig. 1 is an exploded perspective view of a floor-mounted flushing toilet according to a first embodiment of the present invention. [Figure 2] Fig. 2 is a cross-sectional view taken along line II-II of Fig. 1. [Figure 3] Fig. 3 is a plan view of a drain socket of a floor-mounted flushing toilet according to a first embodiment of the present invention. [Figure 4] Fig. 4 is a cross-sectional view taken along line IV-IV of Fig. 2. [Figure 5] Fig. 5 is a cross-sectional view taken along line V-V of Fig. 4. [Figure 6] Fig. 6 is an exploded plan view of a fixing device attached to a fixing portion of a drain socket of a floor-mounted flushing toilet according to a first embodiment of the present invention. [Figure 7] Fig. 7 is a cross-sectional view taken along line VII-VII of Fig. 5. [[ID=3X]] [Figure 8] Fig. 8 is a cross-sectional view taken along line VIII-VIII of Fig. 5. [Figure 9] Fig. 9 is a side view of a bush member of a fixing device of a floor-mounted flushing toilet according to a first embodiment of the present invention. [Figure 10] Fig. 10 is a plan view of a bush member of a fixing device of a floor-mounted flushing toilet according to a first embodiment of the present invention. [Figure 11] Fig. 11 is a cross-sectional view of a toilet body with a fixing device of a floor-mounted flushing toilet according to a second embodiment of the present invention, partially broken to show a round hole in the attachment portion.

Modes for Carrying Out the Invention

[0015] A flush toilet according to the first embodiment of the present invention will be described below with reference to the attached drawings. First, Figure 1 is an exploded perspective view of a floor-standing flush toilet according to the first embodiment of the present invention. Figure 2 is a cross-sectional view taken along the line II-II in Figure 1. As shown in Figures 1 and 2, the floor-standing flush toilet 1 according to the first embodiment of the present invention comprises a ceramic toilet body 2 installed on the floor surface F, a drain socket 8 connected to the outlet 6a of a drain trap 6 that discharges waste from the bowl portion 4 of the toilet body 2, and fixing devices 10 provided on the toilet body 2 and a part of the drain socket 8. The fixing device 10, as will be described in detail later, is positioned behind the bowl portion 4 of the toilet body 2 and is capable of fixing both the toilet body 2 and the drain socket 8 to the floor surface F.

[0016] Here, we will describe an example of a so-called "floor-side drainage system" for a "floor-standing flush toilet," in which the toilet body 2 is connected to a floor-side drain pipe (not shown) below the floor surface F via a drain socket 8, and the wastewater discharged from the toilet body 2 is drained through the drain socket 8 into the floor-side drain pipe (not shown). However, as another variation of the flush toilet 1 of this embodiment, the "wall-side drainage system" of a so-called "floor-standing flush toilet" is also applicable, in which the wastewater discharged from the toilet bowl body 2 of the floor-standing flush toilet 1 is drained through a drain socket 8 into a wall-side drain pipe (not shown) that extends from the back of the rear wall surface of the toilet bowl body 2 to the front.

[0017] Next, with reference to Figures 1 to 10, the details of the fixing device 10 for the floor-standing flush toilet 1 according to this embodiment will be described. First, Figure 3 is a plan view of the drain socket of a floor-standing flush toilet according to this embodiment. Next, Figure 4 is a cross-sectional view along the line IV-IV in Figure 2. Furthermore, Figure 5 is a cross-sectional view along the line VV in Figure 4. In addition, Figure 6 is an exploded plan view of a fixing device attached to the fixing part of the drain socket of the floor-standing flush toilet according to this embodiment. Finally, Figures 7 and 8 are cross-sectional views along the lines VII-VII and VIII-VIII in Figure 5, respectively.

[0018] As shown in Figures 1 to 8, the fixing device 10 for the floor-standing flush toilet 1 of this embodiment is attached to the mounting holes 12, 12 (first round hole 12, second round hole 12) of a pair of mounting parts A, A located at the lower rear and on both the left and right sides of the toilet body 2, thereby fixing the toilet body 2 to the floor surface F. More specifically, this fixing device 10 includes a pair of fixing bases 14, 14 provided on the left and right sides for the drain socket 8, which is a floor fixing member provided at the bottom of the toilet bowl body 2 and fixed to the floor surface F. Furthermore, each fixed base portion 14, 14 corresponds to each mounting hole 12, 12 of the toilet bowl body 2, and is equipped with, generally from bottom to top, a pair of fasteners 16, 16 on the left and right, a pair of screw members 18, 18 on each side, a pair of bolt members 20, 20 on the left and right, a pair of resin bush members 22, 22 on the left and right, a pair of flat washers 24, 24 on the left and right, and a pair of nut members 26, 26 on the left and right.

[0019] Next, as shown in Figures 1 and 2, the outlet portion 6a of the drain trap portion 6 of the toilet bowl body 2 is located behind the bowl portion 4. Furthermore, the drain socket 8, which is a floor fixing member, has its inlet portion 8a connected to the outlet portion 6a of the drain trap portion 6 of the toilet bowl body 2. Furthermore, as shown in Figures 2 to 8, each of the fixing bases 14, 14 of the drain socket 8 is located below the mounting holes 12, 12 of the toilet bowl body 2, and is provided on the lower part of the drain socket 8 and on both the left and right sides. Each fixed base portion 14, 14 is provided with movable ranges S1, S1 (first movable range S1, second movable range S2) that hold each bolt member 20, 20 in the front-to-back and left-to-right directions, respectively, in a position where the heads 20a, 20a of each bolt member 20, 20 are facing downwards.

[0020] As shown in Figures 3 to 8, each fixed base portion 14, 14 is provided with mounting recesses 14a, 14a to which each fastener 16, 16 is attached. Furthermore, each of the movable regions S1, S1 is provided with a receiving portion 28, 28 which is located in the center of the front-to-back direction of each mounting recess 14a, 14a and is formed in a concave shape so as to be recessed downwards. Furthermore, each mounting recess 14a, 14a is provided with screw holes 14b, 14b on both sides in the front-rear direction of the receiving portion 28, 28, to which each screw member 18, 18 is attached.

[0021] Next, as shown in Figures 2 to 8, each fastener 16, 16 has a single through-hole 16a formed in its center, through which the portions of each bolt member 20, 20 other than the heads 20a, 20a can be inserted, and two screw holes 16b, 16b provided on both sides in the front-rear direction relative to this through-hole 16a, to which each screw member 18, 18 is attached. When each fastener 16, 16 is attached to the mounting recess 14a, 14a of each fixed base portion 14, 14, it covers each of the movable regions S1, S1, thereby restricting the range of motion of each bolt member 20, 20 in the front-rear and left-right directions relative to each movable region S1, S1. As shown in Figures 5 and 8, when the portion of each bolt member 20 other than the head 20a is inserted through the insertion holes 16a of each fastener 16, 16, the head 20a of each bolt member 20 is located below the insertion holes 16a, 16a of each fastener 16, 16, and the head 20a protrudes to the left and right from the insertion holes 16a, 16a. As a result, each through-hole 16a, 16a of each fastener 16, 16 functions as a restricting part that restricts the upward movement and rotation of each bolt member 20, 20 when the heads 20a, 20a of each bolt member 20, 20 are facing downwards.

[0022] Furthermore, the heads 20a, 20a of each bolt member 20, 20 are held to slide horizontally in the front-rear and left-right directions within the range of the movable areas S1, S1 of each fixed base portion 14, 14 by attaching the fasteners 16, 16 from above. Furthermore, in the receiving portions 28, 28 of each fixed base portion 14, 14, the heads 20a, 20a of each bolt member 20, 20 are fitted into the range, thereby positioning each bolt member 20, 20. Thus, these portions also function as restricting parts that position each bolt member 20, 20 and restrict the rotation of each head 20a, 20a. Furthermore, when the toilet bowl body 2 is fixed to the floor surface F by the fixing device 10, the heads 20a, 20a of each bolt member 20, 20 are positioned on the receiving parts 28, 28 of each fixing base part 14, 14, which makes it easier for each bolt member 20, 20 to be inserted into the mounting holes 12, 12 (first round hole 12, second round hole) of each mounting part A, A of the toilet bowl body 2.

[0023] Next, as shown in Figures 2 and 4 to 8, each bolt member 20, 20 is provided with shaft portions 20c, 20c on its circumferential surface, each having threaded portions 20b, 20b. Each threaded portion 20b, 20b is inserted into each mounting hole 12, 12 of the toilet bowl body 2, and then, with each bushing member 22, 22 and each flat washer 24, 24 inserted, each nut member 26, 26 is attached (screwed in). As a result, the threaded portions 20b, 20b of each bolt member 20, 20 are fixed to each mounting hole 12, 12 of the toilet bowl body 2 via each bush member 22, 22 by the fastening force of each nut member 26, 26. Incidentally, for each bolt member 20, 20 shown in Figures 1 and 2, the central axes C1, C1 of their shaft portions 20c, 20c coincide with the centers O1, O1 of each mounting hole 12, 12 (each round hole 12, 12) in a plan view, indicating that there is no lateral displacement of the toilet body 2.

[0024] Next, Figures 9 and 10 show a side view and a top view, respectively, of the bushing member 22 of the fixing device 10 for the floor-standing flush toilet 1 according to this embodiment. As shown in Figures 4, 9, and 10, each bushing member 22, 22 is interposed between each mounting hole 12, 12 (each round hole 12, 12) and each bolting member 20, 20 inserted into these mounting holes 12, 12, so that the centers O2, O2 of each bushing member 22, 22 are centered with respect to the center O1 of each round hole 12, 12 (see Figure 2). Furthermore, as shown in Figures 9 and 10, each bushing member 22, 22 is generally annular in shape, and multiple ribs 22a, 22a are provided on its outer surface at equal intervals in the circumferential direction. As a result, each bushing member 22, 22 is mounted centripetically to each of the round holes 12, 12 in the toilet bowl body 2, and is mounted interposed between each of the bolt members 20, 20 inserted into each of these round holes 12, 12. When each bushing member 22, 22 is installed in each round hole 12, 12, each rib 22a, 22a is compressed, and the looseness between each round hole 12, 12 and each bolt member 20, 20 of the toilet bowl body 2 is suppressed by each bushing member 22, 22.

[0025] Next, with reference to Figures 1 to 10, the operation of the floor-standing flush toilet 1 according to the first embodiment of the present invention described above will be explained. First, according to the flush toilet 1 of this embodiment, the fixing device 10 for fixing the toilet body 2 to the floor surface F is positioned behind the bowl portion 4 of the toilet body 2. This eliminates the need for a means to fix the toilet body 2 at the front, and the toilet body 2 can be securely fixed to the floor surface F using only the fixing device 10 located behind the bowl portion 4. Therefore, when fixing the toilet bowl body 2 to the floor surface F, the number of fixing points to the floor surface F can be reduced, thereby reducing the load on the floor surface F. Furthermore, by limiting the space occupied by the fixing device 10 in the front area of ​​the toilet bowl 2, the overall projection dimension of the toilet bowl 2 can be reduced. This increases the design flexibility of the toilet bowl 2 as a whole, improves ease of installation, and enhances aesthetic appeal. On the other hand, conventionally, for example, when the toilet bowl body 2 is made of ceramic, due to the unique manufacturing errors (dimensional errors, shape errors) caused by ceramic molding, the dimensions of the mounting holes 12, 12 (each round hole 12, 12) of the toilet bowl body 2 to which each bolt member 20, 20 of the fixing device 10 is attached must be designed to be larger than the diameter of each bolt member 20, 20. However, when a horizontal load is applied to the toilet bowl body 2, such as when the user sits on it, there is a problem that lateral displacement occurs due to looseness between each round hole 12, 12 of the toilet bowl body 2 and each bolt member 20, 20. In contrast, in this embodiment, each bushing member 22, 22 is interposed between each round hole 12, 12 of the toilet bowl body 2 and each bolting member 20, 20 inserted into each of these round holes 12, 12, and the centers O2, O2 of each bushing member 22, 22 are mounted so as to be centered with respect to the center O1 of each round hole 12, 12 (see Figure 2). This allows the bushing members 22, 22 to suppress any looseness between each of the round holes 12, 12 in the toilet bowl body 2 and each of the bolt members 20, 20. Therefore, lateral displacement when a horizontal load is applied to the toilet bowl body 2 can be reduced more reliably.

[0026] Next, according to the flush toilet 1 of this embodiment, when the toilet body 2 is directly fixed to the floor surface F with the bolt members 20, 20, it is necessary to drill pilot holes in the floor surface F. Also, if the toilet body 2 is made of ceramic, considering the variations in the ceramic, it is necessary to adjust the position of the pilot holes each time the toilet body 2 is fixed. However, according to the flush toilet 1 of this embodiment, the bolt members 20, 20 of the fixing device 10, which are inserted into each of the round holes 12, 12 of the toilet body 2, and the nut members 26, 26 corresponding to each of these bolt members 20, 20, fix the toilet body 2 to the floor surface F. This eliminates the need to adjust the relative positions of the round holes 12, 12 of the toilet body 2, the bolt members 20, 20 and nut members 26, 26 of the fixing device 10, thereby improving ease of installation.

[0027] Next, according to the flush toilet 1 of this embodiment, when fixing the toilet body 2 to the floor surface F, due to the structure of each round hole 12, 12 of the toilet body 2 and each bolt member 20, 20 of the fixing device 10, the installer will need to rotate each bolt member 20, 20 above each round hole 12, 12 or the like. Furthermore, if the toilet bowl body 2 is made of ceramic, for example, in a structure where nut members 26, 26 are provided below each of the round holes 12, 12 of the ceramic toilet bowl body 2, and the heads 20a, 20a of each bolt member 20, 20 are facing upwards, then it is necessary to insert each bolt member 20, 20 into each of the round holes 12, 12 of the ceramic from above. Therefore, a space larger than the length of each bolt member 20, 20 is required above each of the round holes 12, 12 provided in the ceramic. Therefore, in this embodiment, the heads 20a, 20a of each bolt member 20, 20 are positioned below each round hole 12, 12, and the nut members 26, 26 are tightened from above. As a result, the toilet bowl body 2, which is made of ceramic, can be fixed if there is enough space above each round hole 12, 12 to accommodate the height of the threaded portions 20b, 20b of each bolt member 20, 20 protruding from each round hole 12, 12 and the height of each nut member 26, 26. Thus, the space required above each round hole 12, 12 can be reduced. This improves the design and shape flexibility of the toilet bowl body 2 and the fixing device 10.

[0028] Furthermore, according to the flush toilet 1 of this embodiment, each movable area S1, S1 of each fixed base portion 14, 14 is provided with a concave receiving portion 28, 28 that holds the axial end of each bolt member 20, 20 so as to be slidable in the horizontal direction and restricts the rotation of the heads 20a, 20a of each bolt member 20, 20. This ensures that the range of motion of each bolt member 20, 20 of the fixing device 10 is reliably restricted to the area of ​​the recessed receiving portion 28, 28 in each of the movable regions S1, S1. Therefore, lateral displacement when a horizontal load is applied to the toilet bowl body 2 can be reduced even more reliably. Furthermore, it is possible to prevent the bolt members 20, 20 from rotating together when tightening each nut member 26, 26.

[0029] Furthermore, according to the flush toilet 1 of this embodiment, the floor fixing member of the fixing device 10 is provided as a drain socket 8 connected to the outlet portion 6a of the drain trap portion 6 located behind the bowl portion 4 of the toilet body 2. This eliminates the need to omit and expose the means for fixing the toilet bowl body 2 at the front, and ensures that the toilet bowl body 2 is securely fixed to the floor surface F. Therefore, the space occupied by the fixing device 10 in the front area of ​​the toilet bowl 2 can be reduced, the overall projection dimension of the toilet bowl 2 can be reduced, and the overall design flexibility of the toilet bowl 2 can be increased. Furthermore, since each bolt member 20, 20 of the fixing device 10 provided on a part of the drain socket 8 can move within the respective movable regions S1, S1, the lateral displacement when a horizontal load is applied to the toilet body 2 can be restricted to the respective movable regions S1, S1 of each bolt member 20, 20, thereby reducing it more reliably.

[0030] Furthermore, according to the flush toilet 1 of this embodiment, each bush member 22, 22, which is generally annular in shape, has multiple ribs 22a, 22a provided on its outer surface at intervals in the circumferential direction. Furthermore, when the bushing members 22, 22 of the fixing device 10 are installed interposed between the mounting holes 12, 12 (round holes 12, 12) of the toilet bowl body 2 and the bolting members 20, 20, the ribs 22a, 22a of the resin bushing members 22, 22 are crushed, thereby filling the gap between the round holes 12, 12 and the bolting members 20, 20. Therefore, lateral displacement when a horizontal load is applied to the toilet bowl body 2 can be reduced more reliably.

[0031] Furthermore, according to the flush toilet 1 of this embodiment, when each fastener 16, 16 of the fixing device 10 is attached to cover each movable area S1, S2, the head 20a of each bolt member 20 is located below the insertion holes 16a, 16a of each fastener 16, 16, and each head 20a protrudes to the left and right from the insertion holes 16a, 16a. As a result, each through-hole 16a, 16a of each fastener 16, 16 functions as a restricting part that restricts the upward movement of each bolt member 20, 20 when the heads 20a, 20a of each bolt member 20, 20 are facing downward, and the range of motion of each bolt member 20, 20 can be appropriately restricted to within the range of each through-hole 16a, 16a. This makes it possible to more reliably reduce lateral displacement when a horizontal load is applied to the toilet bowl body 2.

[0032] In the flush toilet 1 according to the above-described embodiment, the configuration described is one in which the heads 20a, 20a of each bolt member 20, 20 are positioned downwards and each nut member 26, 26 is positioned upwards. However, the configuration is not limited to this form, and a structure in which each bolt member 20, 20 is positioned above and each nut member 26, 26 is positioned below may also be used. In such a configuration, each nut member may be, for example, a nut member with a flange or a nut member with a flange, and the structure may be designed so that the flange portion of the nut member with a flange or the flange portion of the nut member with a flange cannot pass through the insertion hole of the fastener through which each nut member is inserted, thereby functioning as a restricting part that restricts the upward movement of the nut member. Furthermore, by creating a structure in which the rotation of the flange portion of a flanged nut member or the flange portion of a flanged nut member is restricted by a receiving part, it is possible to prevent the bolt member from rotating together with it, making it easier to tighten the nut member. Furthermore, the head of the bolt member is not limited to a hexagonal nut shape, but may also be a bolt member with a Phillips head. In such cases, the installer can easily install it using an electric screwdriver or similar tool.

[0033] Next, with reference to Figure 11, a floor-standing flush toilet according to a second embodiment of the present invention will be described. Figure 11 is a partially cut cross-sectional view showing a circular hole in the mounting portion of a toilet bowl body to which a fixing device for a floor-standing flush toilet according to a second embodiment of the present invention is attached. In the floor-standing flush toilet 100 according to this embodiment shown in Figure 11, the same reference numerals are used for parts identical to those of the floor-standing flush toilet 1 according to the first embodiment of the present invention described above, and their descriptions are omitted. As shown in Figure 11, in the floor-standing flush toilet 100 according to this embodiment, the structure of the fixing device 110 is different from the structure of the fixing device 10 of the floor-standing flush toilet 1 according to the first embodiment described above.

[0034] In other words, the fixing device 110 of this embodiment differs from the structure of the fixing device 10 of the floor-standing flush toilet 1 according to the first embodiment described above in that the toilet bowl body 2 is directly fixed to the floor surface F without going through a floor fixing member (drain socket 8). More specifically, each bolt member 120, 120 of the fixing device 110 is inserted into each mounting hole 12, 12 (first round hole 12, second round hole 12) of the toilet body 2 via each resin bush member 22, 22, in a position where its head 120a, 120a faces upward. Furthermore, when inserted into the mounting holes 12, 12 (first round hole 12, second round hole 12) of the toilet bowl body 2, each head portion 120a, 120a is a nut portion 126, 126 integrally provided with the shaft portion 120c, 120c, which is provided with the respective threaded portions 120b, 120b.

[0035] Furthermore, each nut portion 126, 126 is provided with each flat washer 24, 24 interposed between it and each bushing member 22, 22. As a result, when the nut portions 126, 126 of each bolt member 120, 120 are tightened by a tool or the like, the shaft portions 120c, 120c rotate around their axes by the threaded portions 120b, 120b, and advance in the depth direction relative to the floor surface F. As a result, each bolt member 120, 120 functions roughly like a wood screw member, and together with each bush member 22, 22 and each flat washer 24, 24, the toilet body 2 can be directly fixed to the floor surface F. Furthermore, each bushing member 22, 22 is mounted centripetically to each of the round holes 12, 12 in the toilet bowl body 2, and is mounted interposed between each of the bolt members 120, 120 inserted into each of the round holes 12, 12. When each bushing member 22, 22 is attached to each round hole 12, 12, each rib 22a, 22a is compressed, and the looseness between each round hole 12, 12 and each bolt member 20, 20 of the toilet bowl body 2 is suppressed by each bushing member 22, 22.

[0036] In the floor-standing flush toilet 100 according to the above-described embodiment, when the bushing members 22, 22 of the fixing device 110 are installed interposed between the mounting holes 12, 12 (round holes 12, 12) of the toilet body 2 and the bolt members 120, 120, the ribs 22a, 22a of the resin bushing members 22, 22 are crushed, thereby filling the gap between the round holes 12, 12 and the bolt members 20, 20. Therefore, lateral displacement when a horizontal load is applied to the toilet bowl body 2 can be reduced more reliably. [Explanation of Symbols]

[0037] 1. Flush toilet according to the first embodiment of the present invention 2 Toilet bowl 4. The bowl portion of the toilet bowl 6. Drain trap section of the toilet bowl 6a Outlet of the drain trap section of the toilet bowl 8. Drain socket (floor fixing component) 8a Inlet of drain socket 10 Fixation device 12 Mounting holes (first round hole, second round hole) 14 Fixed base 14a Mounting recess 14b Screw hole 16 Fasteners 16a Through hole (regulating section) 16b screw hole 18. Screw members (first screw member, second screw member) 20 Bolt members (first bolt member, second bolt member) 20a Head of bolt member 20b Threaded portion of bolt member 20c Shaft portion of bolt member 22. Resin bushing members (first bushing member, second bushing member) 22a Rib 24 Flat Washer 26. Nut components (first nut component, second nut component) 28. Receiving Department (Regulatory Department) 100 Flush toilet according to a second embodiment of the present invention 110 Fixation device 120 Bolt members (first bolt member, second bolt member) 120a Head of bolt member 120b Threaded portion of bolt member 120c Bolt member shaft 126 Nut part A. Mounting part of the toilet bowl C1 Central axis of the shaft portion of the bolt member F Floor O1 Center of mounting hole (first round hole, second round hole) S1 Movable area (1st movable area, 2nd movable area)

Claims

1. A floor-standing flush toilet that is fixed to the floor surface, A toilet bowl body comprising a bowl section and a drain trap section for discharging waste from the bowl section, It has a fixing device positioned behind the bowl portion of the toilet body and used to fix the toilet body to the floor surface, The lower rear and left and right sides of the toilet bowl body are provided with a first round hole and a second round hole, respectively, which are fixed by the fixing device described above. The above-described fixing device comprises a first bolt member and a second bolt member inserted into the first round hole and the second round hole of the toilet bowl body, respectively, and a first bush member and a second bush member attached centripetically to the first round hole and the second round hole, respectively. A floor-standing flush toilet, characterized in that the first bush member and the second bush member are installed interposed between the first round hole and the second round hole and the first bolt member and the second bolt member inserted into the respective round holes.

2. The above-mentioned fixing device further includes a floor fixing member provided at the lower part of the toilet bowl body and fixed to the floor surface. The above floor fixing member includes a fixing base portion that is fixed to the floor surface. Each of the above-mentioned first bolt member and the above-mentioned second bolt member comprises a threaded portion provided on its circumferential surface and a head provided at one end in the axial direction. The floor-standing flush toilet according to claim 1, further comprising the fixing device, a nut member attached to the threaded portion of the first bolt member and the second bolt member, respectively, when inserted into the first round hole and the second round hole, respectively.

3. The above-mentioned fixed base portion includes a restricting portion that restricts the upward movement or rotation of the first bolt member and the second bolt member, respectively, when they are inserted into the first and second round holes, respectively, in a position where their heads are facing downwards. Each of the above-mentioned nut members is attached from above to the threaded portions of the first bolt member and the second bolt member, respectively, which are inserted into the first round hole and the second round hole, respectively, and the other ends of the first bolt member and the second bolt member are inserted through the first bush member and the second bush member, respectively, and the threaded portions are fixed by the nut members, as described in claim 2.

4. The floor-standing flush toilet according to claim 3, wherein the fixed base portion comprises a first movable region and a second movable region that respectively hold the heads of the first bolt member and the second bolt member so as to be slidable in the horizontal direction, and each of the first movable region and the second movable region is provided with a recessed receiving portion that restricts the rotation of the heads of the first bolt member and the second bolt member.

5. The drain trap section described above has an outlet section located behind the bowl section described above. The floor fixing member described above is a drain socket connected to the outlet portion of the drain trap section of the toilet bowl body. The floor-standing flush toilet according to claim 4, wherein the first movable area and the second movable area are each provided below the drain socket and on both the left and right sides, respectively.

6. The floor-standing flush toilet according to claim 1, wherein each of the first bush member and the second bush member is a generally annular member, and a plurality of ribs are provided on its outer circumferential surface at intervals in the circumferential direction.

7. The fixing device further comprises a first fastener and a second fastener, respectively, which are attached to cover the first movable region and the second movable region, respectively, and each of the first fastener and the second fastener restricts the movable range of the first bolt member and the second bolt member with respect to the first movable region and the second movable region, respectively. A floor-standing flush toilet according to claim 4.

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