US20200378103A1 - Drain socket and drain socket-equipped toilet bowl - Google Patents
Drain socket and drain socket-equipped toilet bowl Download PDFInfo
- Publication number
- US20200378103A1 US20200378103A1 US16/888,486 US202016888486A US2020378103A1 US 20200378103 A1 US20200378103 A1 US 20200378103A1 US 202016888486 A US202016888486 A US 202016888486A US 2020378103 A1 US2020378103 A1 US 2020378103A1
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- United States
- Prior art keywords
- drain
- restriction
- toilet bowl
- connection part
- drain socket
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
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Classifications
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
- E03D11/00—Other component parts of water-closets, e.g. noise-reducing means in the flushing system, flushing pipes mounted in the bowl, seals for the bowl outlet, devices preventing overflow of the bowl contents; devices forming a water seal in the bowl after flushing, devices eliminating obstructions in the bowl outlet or preventing backflow of water and excrements from the waterpipe
- E03D11/02—Water-closet bowls ; Bowls with a double odour seal optionally with provisions for a good siphonic action; siphons as part of the bowl
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
- E03D11/00—Other component parts of water-closets, e.g. noise-reducing means in the flushing system, flushing pipes mounted in the bowl, seals for the bowl outlet, devices preventing overflow of the bowl contents; devices forming a water seal in the bowl after flushing, devices eliminating obstructions in the bowl outlet or preventing backflow of water and excrements from the waterpipe
- E03D11/13—Parts or details of bowls; Special adaptations of pipe joints or couplings for use with bowls, e.g. provisions in bowl construction preventing backflow of waste-water from the bowl in the flushing pipe or cistern, provisions for a secondary flushing, for noise-reducing
- E03D11/16—Means for connecting the bowl to the floor, e.g. to a floor outlet
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
- E03D11/00—Other component parts of water-closets, e.g. noise-reducing means in the flushing system, flushing pipes mounted in the bowl, seals for the bowl outlet, devices preventing overflow of the bowl contents; devices forming a water seal in the bowl after flushing, devices eliminating obstructions in the bowl outlet or preventing backflow of water and excrements from the waterpipe
- E03D11/13—Parts or details of bowls; Special adaptations of pipe joints or couplings for use with bowls, e.g. provisions in bowl construction preventing backflow of waste-water from the bowl in the flushing pipe or cistern, provisions for a secondary flushing, for noise-reducing
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
- E03D11/00—Other component parts of water-closets, e.g. noise-reducing means in the flushing system, flushing pipes mounted in the bowl, seals for the bowl outlet, devices preventing overflow of the bowl contents; devices forming a water seal in the bowl after flushing, devices eliminating obstructions in the bowl outlet or preventing backflow of water and excrements from the waterpipe
- E03D11/18—Siphons
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/60—Planning or developing urban green infrastructure
Definitions
- the present disclosure relates to a drain socket and a drain socket-equipped toilet bowl.
- a drain socket that connects a drain pipe part (drain pipe) of a toilet bowl and a drain piping provided in a floor or the like.
- the drain socket generally includes a first connection part connected to a drain pipe part of a toilet bowl, a second connection part connected to drain piping provided in a floor or the like, and a drain channel body part (drain channel body) connecting the first connection part and the second connection part.
- Some drain sockets have an inclined part inclined backward toward a downstream side.
- JP 2008-184745 A describes a drain socket in which a restriction part is provided at an upstream end portion of a drain channel body part. In this drain socket, flush water from the drain pipe part of the toilet bowl is caused to collide with the restriction part to increase siphon force.
- the present disclosure has been completed based on the above-described circumstances, and an object thereof is to provide a drain socket in which paper or the like can be less likely to be caught at a restriction part.
- a drain socket of the present disclosure includes: a first connection part connected to a drain pipe part of a toilet bowl; a second connection part connected to drain piping in a floor or the like; and a drain channel body part connecting the first connection part and the second connection part.
- the drain channel body part includes an inclined part inclined to one side in a front-back direction toward a lower side.
- a restriction part is provided at an upstream end portion of the drain channel body part.
- a surface of the restriction part located on the one side has a portion where a horizontal distance between a center of the first connection part and a side edge surface of the restriction part increases from a center of the surface in a left-right direction toward an end side of the surface in the left-right direction.
- a drain socket-equipped toilet bowl includes a toilet bowl having a drain pipe part of the toilet bowl; and the above-described drain socket.
- the one side in the front-back direction in the present disclosure is a direction on a horizontal plane when the inclination direction of the inclined part is projected on the horizontal plane.
- the left-right direction in the present disclosure is a direction crossing the front-back direction in the present disclosure.
- the up-down direction in the present disclosure is an up-down direction in a state in which the drain socket is installed (a state in which the second connection part is connected to the drain piping in a floor or the like).
- FIG. 1 is a cross-sectional view showing a drain socket, in which the drain socket connects a drain pipe part of a toilet bowl and drain piping in a floor, according to some embodiments;
- FIG. 2 is a sectional view showing the drain socket, according to some embodiments.
- FIG. 3 is a plan view showing an upper member of a hanging pipe of the drain socket, according to some embodiments.
- FIG. 4 is a diagram illustrating the flow of water in the drain socket, according to some embodiments.
- FIG. 5 is a cross-sectional view showing a drain socket according to some embodiments.
- FIG. 6 is a partially enlarged plan view showing the drain socket, according to some embodiments.
- a surface of the inclined part on a side opposite to the one side may have a gradient closer to vertical on the downstream side than on the upstream side. According to such a configuration, flush water that has collided with a portion of the restriction part located on the one side and rebounded on the surface of the inclined part on the side opposite to the one side is drained vigorously due to the gradient close to vertical of the downstream side of the surface on the side opposite to the one side of the inclined part. Therefore, paper or the like can be less likely to be caught at the drain channel body part.
- an inclined surface may be provided on a downstream side of the surface of the restriction part on the one side, the inclined surface being inclined to the side opposite to the one side toward a lower side in a vertical direction.
- the portion of the restriction part located on the one side may have a step surface extending in a direction crossing the vertical direction. According to such a configuration, a large amount of flush water can collide with the portion of the restriction part located on the one side so that water film can be reliably formed. Thus, a siphon can be reliably generated.
- the portion of the restriction part located on the one side is located on the one side relative to a portion, located on the one side, of the drain pipe part of the toilet bowl.
- an outer edge of the drain pipe is located inside an inner edge of the restriction portion with respect to a horizontal configuration of the drain pipe and the restriction portion.
- the flush water that has collided with the portion of the restriction part located on the one side goes to a lower position of the surface of the inclined part on the side opposite to the one side. Accordingly, the flush water that has collided with the portion of the restriction part located on the one side and the flush water that flows down from the drain pipe part of the toilet bowl join together at the lower position of the inclined part. As a result, a water film formation position where siphon occurs is lowered, so that the siphon force can be increased.
- FIGS. 1 to 4 Some embodiments are described with reference to FIGS. 1 to 4 .
- a drain socket 10 includes a first connection part 11 connected to a drain pipe part (referred to as a toilet bowl drain pipe part 40 ) of a toilet bowl 41 , a second connection part 12 connected to drain piping 50 in a floor, and a drain channel body part (drain channel body) 13 connecting the first connection part 11 and the second connection part 12 .
- the left side in FIG. 1 (an inclination direction of an inclined part 14 ) is back, the right side in FIG. 1 is front, the upper side in FIG. 1 is upper, and the lower side in FIG. 1 is lower, based on the orientation of a person sitting on the toilet bowl 41 in a normal posture. Further, in a direction perpendicular to the paper surface in FIG. 1 , the front side of the paper surface is right, and the back side of the paper surface is left.
- the toilet bowl 41 has a bowl part 42 and a toilet bowl drain channel 43 extending from a bottom part of the bowl part 42 toward the back side of the toilet bowl 41 .
- the toilet bowl drain channel 43 extends obliquely upward from the bottom part of the bowl part 42 , then extends downward, and opens vertically downward at its downstream end.
- the downstream end of the toilet bowl drain channel 43 is formed in the toilet bowl drain pipe part 40 .
- the toilet bowl drain pipe part 40 has a cylindrical shape, and protrudes vertically downward at a back end portion of the toilet bowl 41 .
- the drain socket 10 has a hanging pipe 15 having the first connection part 11 , an adjuster pipe 16 extending substantially horizontally from a lower end portion of the hanging pipe 15 , and a connecting pipe 17 connected to a distal end portion of the adjuster pipe 16 .
- the connecting pipe 17 has the second connection part 12 .
- the horizontal distance between the first connection part 11 and the second connection part 12 can be changed by cutting the adjuster pipe 16 to a predetermined length.
- a lower end portion of the hanging pipe 15 is provided with a bent part 18 .
- the bent part 18 is bent in an arc shape. Water accumulates in the bent part 18 so that a siphon action occurs.
- the hanging pipe 15 is divided into an upper member 15 U and a lower member 15 S.
- a lower end of the upper member 15 U is inserted into an upper end of the lower member 15 S and joined by an adhesive.
- the adjuster pipe 16 is formed integrally with the lower member 15 S.
- the bent part 18 is formed in the lower member 15 S.
- the first connection part 11 has a cylindrical shape and is opened to both upper and lower sides.
- the toilet bowl drain pipe part 40 is inserted into the first connection part 11 from above.
- a packing 60 is mounted on an outer peripheral surface of the first connection part 11 .
- the packing 60 has a packing body part 61 externally fitted to the first connection part 11 , and a seal part 62 protruding inward from an upper end of the packing body part 61 .
- the seal part 62 has an annular shape and is in close contact with the entire circumference of the toilet bowl drain pipe part 40 (see FIG. 1 ).
- the second connection part 12 has a cylindrical shape and is opened in the vertical direction.
- the second connection part 12 is continuous with a downstream end of the drain channel body part 13 .
- the second connection part 12 is inserted into the drain piping 50 .
- the drain channel body part 13 extends over the hanging pipe 15 , the adjuster pipe 16 , and the connecting pipe 17 .
- the drain channel body part 13 includes the inclined part 14 , the bent part 18 continuous with the downstream side of the inclined part 14 , a horizontal part 19 continuous with the downstream side of the bent part 18 , and a vertical part 21 continuous with the downstream side of the horizontal part 19 .
- the flow channel area of the drain channel body part 13 is substantially constant over the inclined part 14 , the bent part 18 , the horizontal part 19 , and the vertical part 21 . That is, the inner diameter dimension is substantially constant over the inclined part 14 and bent part 18 of the hanging pipe 15 , the adjuster pipe 16 , and the connecting pipe 17 .
- the inclined part 14 is formed in the upper member 15 U of the hanging pipe 15 .
- the inclined part 14 is inclined with respect to the vertical direction.
- the inclined part 14 is inclined backward toward the downstream side, as shown in FIG. 2 .
- the inclined part 14 is displaced backward little by little from the upper end toward the lower end.
- a front surface (a surface on the side opposite to the one side) 22 of the inclined part 14 is located on a side facing a restriction part back portion 31 .
- the front surface 22 of the inclined part 14 has a gradient closer to vertical on the downstream side 22 S than on the upstream side 22 U. In other words, the front surface 22 is more inclined from the vertical direction on an upstream 22 U side than on a downstream side 22 S.
- the cross-sectional shape of the front surface 22 of the inclined part 14 is curved in an arcuate shape bulging backward. When viewed from above in the vertical direction, a lower end of the downstream side 22 S of the front surface 22 is linear in the left-right direction as shown in FIG. 3 .
- a restriction part 30 is provided at an upstream end portion of the drain channel body part 13 .
- the restriction part 30 has first and second step surfaces 33 and 34 each of which extends in a direction crossing the vertical direction (substantially in a horizontal direction).
- the second step surface 34 is located on the downstream side of the first step surface 33 .
- the width dimension (dimension in the inner-outer direction) of the second step surface 34 is smaller than that of the first step surface 33 , as shown in FIG. 3 .
- the first step surface 33 has an annular shape formed on the entire circumference of the restriction part 30 .
- the first step surface 33 has first side step surfaces 33 S located on both left and right sides of the restriction part 30 , a first front step surface 33 F located on the front side of the restriction part 30 , and a first back step surface 33 R located on the back side of the restriction part 30 .
- the width dimension (dimension in the inner-outer direction) of the first back step surface 33 R gradually decreases from the center of the first back step surface 33 R in the left-right direction toward the end sides of the first back step surface 33 R in the left-right direction.
- the second step surface 34 has second side step surfaces 34 S located on both left and right sides of the restriction part 30 , and a second back step surface 34 R located on the back side of the restriction part 30 .
- the second side step surfaces 34 S and the second back step surface 34 R have substantially the same width dimension (dimension in the inner-outer direction).
- a peripheral surface of the restriction part 30 has a pair of left and right side surfaces 35 , a front surface (a front side edge surface) 36 , and a back surface (a back side edge surface) 37 .
- the front surface 36 connects the front end sides of the pair of left and right side surfaces 35 .
- the back surface 37 connects the back end sides of the pair of left and right side surfaces 35 .
- the back surface 37 of the restriction part 30 is a surface of the restriction part 30 located on the one side where the inclined part 14 is inclined.
- the pair of side surfaces 35 hangs down substantially vertically from inner edges of the pair of first side step surfaces 33 S. As shown in FIG. 3 , the pair of side surfaces 35 are substantially parallel and extend linearly in the front-back direction, in plan view from above.
- the front surface 36 hangs down substantially vertically from an inner edge of the first front step surface 33 F.
- the front surface 36 is curved in an arc shape centered on the center C of the first connection part 11 in plan view from above.
- the back surface 37 hangs down substantially vertically from an inner edge of the first back step surface 33 R. The back surface 37 will be described later in detail.
- a portion of the restriction part 30 located on the one side has the first back step surface 33 R, the second back step surface 34 R, and the back surface 37 .
- the back surface 37 forms a peripheral surface of the restriction part back portion 31 .
- the back surface 37 is curved in an arc shape having a radius larger than that of the front surface 36 in plan view from above.
- a horizontal distance B 1 between left and right ends 37 L and 37 R and the center C of the first connection part 11 is larger than a distance B 2 between the center of the back surface 37 in the left-right direction and the center C of the first connection part 11 .
- a horizontal distance between the restriction part back portion 31 and the center C of the first connection part 11 gradually increases from the center of the restriction part back portion 31 in the left-right direction toward both ends 37 R and 37 L.
- the restriction part 30 is symmetric left and right with respect to the center C of the first connection part 11 .
- an inclined surface 38 that is inclined frontward toward the lower side in the vertical direction is provided on the downstream side of the restriction part back portion 31 .
- the inclined surface 38 hangs down from an inner edge of the second back step surface 34 R (see FIG. 3 ).
- the inclined surface 38 extends from the inner edge of the second back step surface 34 R to an upstream end of the inclined part 14 of the drain channel main body 13 .
- the inclined surface 38 is inclined toward the downstream side 22 S of the front surface 22 of the inclined part 14 .
- a virtual inclined surface 39 extending downward along the inclined surface 38 crosses the downstream side 22 S of the front surface 22 of the inclined part 14 .
- the inclined surface 38 is inclined more than the front surface 36 of the restriction part 30 which faces the inclined surface 38 .
- the inclined surface 38 is curved in an arc shape substantially parallel to the back surface 37 , as shown in FIG. 3 . That is, a horizontal distance between both ends of the inclined surface 38 in the left-right direction and the center C of the first connection part 11 is larger than that between the center of the inclined surface 38 in the left-right direction and the center C of the first connection part 11 .
- the toilet bowl drain pipe part 40 and the drain piping 50 are connected using the drain socket 10 .
- the second connection part 12 of the drain socket 10 is connected to the drain piping 50 , and the toilet bowl drain pipe part 40 is inserted into the first connection part 11 .
- a lower end of the toilet bowl drain pipe part 40 protrudes downward relative to the lower end of the seal part 62 of the packing 60 .
- paper or the like flowing down with the water gathers at the restriction part back portion 31 .
- the restriction part back portion 31 expands in the left-right direction more largely than in the case where the restriction part back portion 31 has an arcuate surface, paper or the like is less likely to concentrate at the center.
- the flow channel area in the restriction part 30 is larger than that in the case where the restriction part back portion 31 has an arcuate surface, paper or the like flows down without being caught. Paper or the like is drawn down vigorously with water by the strong siphon force, and discharged smoothly.
- the drain socket 10 in some embodiments, includes the first connection part 11 connected to the drain pipe part (drain pipe) of the toilet bowl 41 , the second connection part 12 connected to the drain piping 50 in the floor, and the drain channel body part (drain channel body) 13 connecting the first connection part 11 and second connection part 12 .
- the drain channel body part 13 includes the inclined part 14 inclined backward toward the downstream side.
- a restriction part 30 is provided at an upstream end portion of the drain channel body part 13 .
- the back surface (back edge surface) 37 of the restriction part 30 has a shape such that the horizontal distance B 1 between both ends 37 L and 37 R in the left-right direction and the center C of the first connection part 11 is larger than the horizontal distance B 2 between the center of the back surface 37 in the left-right direction and the center C of the first connection part 11 .
- both end portions thereof in the left-right direction are located on more outer sides as compared with the case where the back surface 37 has an arc shape having a constant horizontal distance from the center C of the first connection part 11 . Therefore, paper or the like is less likely to concentrate at the center of the back surface 37 of the restriction part 30 , and easily flows down since the flow channel area is large. Thus, the paper or the like can be less likely to be caught at the restriction part back portion 31 .
- the front surface 22 of the inclined part 14 has a gradient closer to vertical on the downstream side than on the upstream side. According to this configuration, the flush water that has flowed down from the restriction part back portion 31 to the front surface 22 of the inclined part 14 is drained vigorously due to the gradient close to vertical of the downstream side of the front surface 22 . Therefore, paper or the like can be less likely to be caught at the drain channel body part 13 .
- the inclined surface 38 that is inclined frontward toward the lower side in the vertical direction is provided on the downstream side of the back surface 37 of the restriction part 30 . According to this configuration, the flush water that has collided with the restriction part back portion 31 flows down along the inclined surface 38 to the front surface 22 of the inclined part 14 , and flows down vigorously along the front surface 22 . Thus, the siphon force can be increased.
- the restriction part back portion 31 is located behind the back portion 44 of the toilet bowl drain pipe part 40 .
- the flush water that has rebounded from the restriction part back portion 31 goes to a lower position of the inclined part 14 . Accordingly, the flush water that has collided with and rebounded from the restriction part back portion 31 and the flush water that flows down from the toilet bowl drain pipe part 40 join together at the lower position of the inclined part 14 . As a result, a water film formation position where siphon occurs is lowered, so that the siphon force can be increased.
- drain socket 70 according to some embodiments is described with reference to FIGS. 5 and 6 .
- the restriction part 30 has the first and second step surfaces 33 and 34 each of which extends in a direction crossing the vertical direction (substantially in a horizontal direction).
- the first step surface 33 has an annular shape formed on the entire circumference of the restriction part 30 , and has the first side step surfaces 33 S, the first front step surface 33 F, and the first back step surface 33 R.
- the first front step surfaces 33 F and the first back step surface 33 R have substantially the same width dimension (dimension in the inner-outer direction).
- the peripheral surface of the restriction part 30 has the pair of left and right side surfaces 35 , the front surface 36 , and the back surface 37 , in a same or similar manner as described above with respect to drain socket 10 .
- the restriction part back portion 31 has the first back step surface 33 R and the back surface 37 .
- the back surface 37 is in some embodiments curved in an arc shape having a radius larger than that of the front surface 36 in plan view from above.
- the inclined surface 38 that is inclined frontward toward the lower side in the vertical direction is in some embodiments provided on the downstream side of the restriction part back portion 31 .
- the inclined surface 38 hangs down from the lower end of the back surface 37 .
- the inclined surface 38 is in some embodiments inclined toward the downstream side 22 S of the front surface 22 of the inclined part 14 .
- the inclined surface 38 in some embodiments has a shape such that a horizontal distance between both ends of the inclined surface 38 in the left-right direction and the center C of the first connection part 11 is larger than that between the center of the inclined surface 38 in the left-right direction and the center C of the first connection part 11 .
- the inclined surface 38 is curved in an arc shape that is gentler than that of the back surface 37 in plan view from above. That is, the inclined surface 38 has a radius larger than that of the back surface 37 .
- both end portions of the restriction part back portion 31 in the left-right direction are located on more outer sides, so that paper or the like is less likely to concentrate at the center of the restriction part back portion 31 , in a same of similar manner as described with reference to drain socket 10 , and paper or the like easily flows down since the flow channel area is large. Thus, the paper or the like can be less likely to be caught at the back portion of the restriction part 30 .
- the inclined surface 38 that is inclined frontward toward the lower side in the vertical direction is in some embodiments provided on the downstream side of the restriction part back portion 31 . According to this configuration, the flush water that has abutted against the restriction part back portion 31 flows down along the inclined surface 38 to the front surface 22 of the inclined part 14 , and flows down vigorously along the front surface 22 . Thus, the siphon force can be increased.
- the restriction part back portion 31 has the first step surface 33 extending in a direction crossing the vertical direction. According to this configuration, a large amount of flush water collides with the restriction part back portion 31 , and thus the siphon force can be increased.
- the restriction part 30 has the first and second step surfaces 33 and 34 , but the present disclosure is not limited thereto.
- the restriction part may have a tapered surface, instead of the step surfaces, in which the flow channel area is reduced toward the downstream side. Further, the restriction part may have three or more step surfaces.
- the front surface 22 of the inclined part 14 has a gradient closer to vertical on the downstream side than on the upstream side.
- the gradient of the front surface of the inclined part does not necessarily have to be designed in this manner.
- the pair of side surfaces 35 is substantially parallel, and extends linearly in the front-back direction, but the present disclosure is not limited thereto.
- the pair of side surfaces may be, for example, gently curved.
- the back surface 37 has an arc shape, but the present disclosure is not limited thereto.
- the back surface has only to have a portion where a horizontal distance from the center of the first connection part increases from the center of the back surface in the left-right direction toward the end sides of the back surface. That is, such a portion may be formed in at least a part of the back surface.
- the inclined part 14 of the drain socket 10 may be inclined backward of the toilet bowl 41 toward the lower side, but the present disclosure is not limited thereto.
- the inclined part of the drain socket may be inclined in any direction in the horizontal direction toward the lower side.
- the inclined part of the drain socket may be inclined frontward, leftward or rightward of the toilet bowl toward the lower side.
- the inclined part 14 is inclined backward toward the downstream side, but, the present disclosure is not limited thereto.
- the inclined part 14 may be inclined frontward toward the downstream side.
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Abstract
Description
- This application claims the priority of Japanese Application No. 2019-102195 filed May 31, 2019, the entire contents of which are incorporated herein by reference.
- The present disclosure relates to a drain socket and a drain socket-equipped toilet bowl.
- Conventionally, a drain socket that connects a drain pipe part (drain pipe) of a toilet bowl and a drain piping provided in a floor or the like is known. The drain socket generally includes a first connection part connected to a drain pipe part of a toilet bowl, a second connection part connected to drain piping provided in a floor or the like, and a drain channel body part (drain channel body) connecting the first connection part and the second connection part. Some drain sockets have an inclined part inclined backward toward a downstream side. In a drain socket having such an inclined part, for example, JP 2008-184745 A describes a drain socket in which a restriction part is provided at an upstream end portion of a drain channel body part. In this drain socket, flush water from the drain pipe part of the toilet bowl is caused to collide with the restriction part to increase siphon force.
- In the above-described configuration, paper or the like flowing down together with the flush water easily gathers at a back portion of the restriction part. When paper or the like having gathered at the back portion of the restriction part is caught there, clogging may occur. Therefore, improvement has been desired.
- The present disclosure has been completed based on the above-described circumstances, and an object thereof is to provide a drain socket in which paper or the like can be less likely to be caught at a restriction part.
- A drain socket of the present disclosure includes: a first connection part connected to a drain pipe part of a toilet bowl; a second connection part connected to drain piping in a floor or the like; and a drain channel body part connecting the first connection part and the second connection part. The drain channel body part includes an inclined part inclined to one side in a front-back direction toward a lower side. A restriction part is provided at an upstream end portion of the drain channel body part. A surface of the restriction part located on the one side has a portion where a horizontal distance between a center of the first connection part and a side edge surface of the restriction part increases from a center of the surface in a left-right direction toward an end side of the surface in the left-right direction.
- A drain socket-equipped toilet bowl according to the present disclosure includes a toilet bowl having a drain pipe part of the toilet bowl; and the above-described drain socket.
- The one side in the front-back direction in the present disclosure is a direction on a horizontal plane when the inclination direction of the inclined part is projected on the horizontal plane. The left-right direction in the present disclosure is a direction crossing the front-back direction in the present disclosure. The up-down direction in the present disclosure is an up-down direction in a state in which the drain socket is installed (a state in which the second connection part is connected to the drain piping in a floor or the like).
-
FIG. 1 is a cross-sectional view showing a drain socket, in which the drain socket connects a drain pipe part of a toilet bowl and drain piping in a floor, according to some embodiments; -
FIG. 2 is a sectional view showing the drain socket, according to some embodiments; -
FIG. 3 is a plan view showing an upper member of a hanging pipe of the drain socket, according to some embodiments; -
FIG. 4 is a diagram illustrating the flow of water in the drain socket, according to some embodiments; -
FIG. 5 is a cross-sectional view showing a drain socket according to some embodiments; and -
FIG. 6 is a partially enlarged plan view showing the drain socket, according to some embodiments. - In the drain socket of the present disclosure, a surface of the inclined part on a side opposite to the one side may have a gradient closer to vertical on the downstream side than on the upstream side. According to such a configuration, flush water that has collided with a portion of the restriction part located on the one side and rebounded on the surface of the inclined part on the side opposite to the one side is drained vigorously due to the gradient close to vertical of the downstream side of the surface on the side opposite to the one side of the inclined part. Therefore, paper or the like can be less likely to be caught at the drain channel body part.
- In the drain socket of the present disclosure, an inclined surface may be provided on a downstream side of the surface of the restriction part on the one side, the inclined surface being inclined to the side opposite to the one side toward a lower side in a vertical direction. According to such a configuration, flush water that has collided with the portion of the restriction part located on the one side flows down along the inclined surface to the surface of the inclined part on the side opposite to the one side, and flows down vigorously along the surface of the inclined part on the side opposite to the one side. Thus, the siphon force can be increased.
- In the drain socket of the present disclosure, the portion of the restriction part located on the one side may have a step surface extending in a direction crossing the vertical direction. According to such a configuration, a large amount of flush water can collide with the portion of the restriction part located on the one side so that water film can be reliably formed. Thus, a siphon can be reliably generated.
- In the drain socket of the present disclosure, in a state in which the first connection part is connected to the drain pipe part of the toilet bowl, the portion of the restriction part located on the one side is located on the one side relative to a portion, located on the one side, of the drain pipe part of the toilet bowl. In other words, at the one side of the toilet bowel, an outer edge of the drain pipe is located inside an inner edge of the restriction portion with respect to a horizontal configuration of the drain pipe and the restriction portion. According to such a configuration, as compared with the case where the portion of the restriction part located on the one side is located on the side opposite to the one side relative to the portion, located on the one side, of the drain pipe part of the toilet bowl, the flush water that has collided with the portion of the restriction part located on the one side goes to a lower position of the surface of the inclined part on the side opposite to the one side. Accordingly, the flush water that has collided with the portion of the restriction part located on the one side and the flush water that flows down from the drain pipe part of the toilet bowl join together at the lower position of the inclined part. As a result, a water film formation position where siphon occurs is lowered, so that the siphon force can be increased.
- Below, some embodiments are described with reference to
FIGS. 1 to 4 . - In some embodiments a shown for example in
FIGS. 1-4 , adrain socket 10 includes afirst connection part 11 connected to a drain pipe part (referred to as a toilet bowl drain pipe part 40) of atoilet bowl 41, asecond connection part 12 connected todrain piping 50 in a floor, and a drain channel body part (drain channel body) 13 connecting thefirst connection part 11 and thesecond connection part 12. - In the following description of each component, the left side in
FIG. 1 (an inclination direction of an inclined part 14) is back, the right side inFIG. 1 is front, the upper side inFIG. 1 is upper, and the lower side inFIG. 1 is lower, based on the orientation of a person sitting on thetoilet bowl 41 in a normal posture. Further, in a direction perpendicular to the paper surface inFIG. 1 , the front side of the paper surface is right, and the back side of the paper surface is left. - The
toilet bowl 41 has abowl part 42 and a toiletbowl drain channel 43 extending from a bottom part of thebowl part 42 toward the back side of thetoilet bowl 41. The toiletbowl drain channel 43 extends obliquely upward from the bottom part of thebowl part 42, then extends downward, and opens vertically downward at its downstream end. The downstream end of the toiletbowl drain channel 43 is formed in the toilet bowldrain pipe part 40. The toilet bowldrain pipe part 40 has a cylindrical shape, and protrudes vertically downward at a back end portion of thetoilet bowl 41. - The
drain socket 10 has a hangingpipe 15 having thefirst connection part 11, anadjuster pipe 16 extending substantially horizontally from a lower end portion of thehanging pipe 15, and a connectingpipe 17 connected to a distal end portion of theadjuster pipe 16. The connectingpipe 17 has thesecond connection part 12. In thedrain socket 10, the horizontal distance between thefirst connection part 11 and thesecond connection part 12 can be changed by cutting theadjuster pipe 16 to a predetermined length. - A lower end portion of the hanging
pipe 15 is provided with abent part 18. Thebent part 18 is bent in an arc shape. Water accumulates in thebent part 18 so that a siphon action occurs. - The hanging
pipe 15 is divided into anupper member 15U and alower member 15S. A lower end of theupper member 15U is inserted into an upper end of thelower member 15S and joined by an adhesive. Theadjuster pipe 16 is formed integrally with thelower member 15S. Thebent part 18 is formed in thelower member 15S. - The
first connection part 11 has a cylindrical shape and is opened to both upper and lower sides. The toilet bowldrain pipe part 40 is inserted into thefirst connection part 11 from above. A packing 60 is mounted on an outer peripheral surface of thefirst connection part 11. - As shown in
FIG. 2 , the packing 60 has apacking body part 61 externally fitted to thefirst connection part 11, and aseal part 62 protruding inward from an upper end of thepacking body part 61. Theseal part 62 has an annular shape and is in close contact with the entire circumference of the toilet bowl drain pipe part 40 (seeFIG. 1 ). - The
second connection part 12 has a cylindrical shape and is opened in the vertical direction. Thesecond connection part 12 is continuous with a downstream end of the drainchannel body part 13. Thesecond connection part 12 is inserted into thedrain piping 50. - The drain
channel body part 13 extends over the hangingpipe 15, theadjuster pipe 16, and the connectingpipe 17. The drainchannel body part 13 includes theinclined part 14, thebent part 18 continuous with the downstream side of theinclined part 14, ahorizontal part 19 continuous with the downstream side of thebent part 18, and avertical part 21 continuous with the downstream side of thehorizontal part 19. The flow channel area of the drainchannel body part 13 is substantially constant over theinclined part 14, thebent part 18, thehorizontal part 19, and thevertical part 21. That is, the inner diameter dimension is substantially constant over theinclined part 14 andbent part 18 of the hangingpipe 15, theadjuster pipe 16, and the connectingpipe 17. - The
inclined part 14 is formed in theupper member 15U of the hangingpipe 15. Theinclined part 14 is inclined with respect to the vertical direction. Theinclined part 14 is inclined backward toward the downstream side, as shown inFIG. 2 . Theinclined part 14 is displaced backward little by little from the upper end toward the lower end. - As shown in
FIG. 2 , a front surface (a surface on the side opposite to the one side) 22 of theinclined part 14 is located on a side facing a restriction part backportion 31. Thefront surface 22 of theinclined part 14 has a gradient closer to vertical on thedownstream side 22S than on theupstream side 22U. In other words, thefront surface 22 is more inclined from the vertical direction on an upstream 22U side than on adownstream side 22S. As shown inFIG. 2 , the cross-sectional shape of thefront surface 22 of theinclined part 14 is curved in an arcuate shape bulging backward. When viewed from above in the vertical direction, a lower end of thedownstream side 22S of thefront surface 22 is linear in the left-right direction as shown inFIG. 3 . - A
restriction part 30 is provided at an upstream end portion of the drainchannel body part 13. Therestriction part 30 has first and second step surfaces 33 and 34 each of which extends in a direction crossing the vertical direction (substantially in a horizontal direction). Thesecond step surface 34 is located on the downstream side of thefirst step surface 33. The width dimension (dimension in the inner-outer direction) of thesecond step surface 34 is smaller than that of thefirst step surface 33, as shown inFIG. 3 . - As shown in
FIG. 3 , thefirst step surface 33 has an annular shape formed on the entire circumference of therestriction part 30. Thefirst step surface 33 has first side step surfaces 33S located on both left and right sides of therestriction part 30, a firstfront step surface 33F located on the front side of therestriction part 30, and a firstback step surface 33R located on the back side of therestriction part 30. The width dimension (dimension in the inner-outer direction) of the firstback step surface 33R gradually decreases from the center of the firstback step surface 33R in the left-right direction toward the end sides of the firstback step surface 33R in the left-right direction. - As shown in
FIG. 3 , thesecond step surface 34 has second side step surfaces 34S located on both left and right sides of therestriction part 30, and a secondback step surface 34R located on the back side of therestriction part 30. The second side step surfaces 34S and the secondback step surface 34R have substantially the same width dimension (dimension in the inner-outer direction). - As shown in
FIG. 3 , a peripheral surface of therestriction part 30 has a pair of left and right side surfaces 35, a front surface (a front side edge surface) 36, and a back surface (a back side edge surface) 37. Thefront surface 36 connects the front end sides of the pair of left and right side surfaces 35. Theback surface 37 connects the back end sides of the pair of left and right side surfaces 35. Theback surface 37 of therestriction part 30 is a surface of therestriction part 30 located on the one side where theinclined part 14 is inclined. - The pair of side surfaces 35 hangs down substantially vertically from inner edges of the pair of first side step surfaces 33S. As shown in
FIG. 3 , the pair of side surfaces 35 are substantially parallel and extend linearly in the front-back direction, in plan view from above. Thefront surface 36 hangs down substantially vertically from an inner edge of the firstfront step surface 33F. Thefront surface 36 is curved in an arc shape centered on the center C of thefirst connection part 11 in plan view from above. Theback surface 37 hangs down substantially vertically from an inner edge of the firstback step surface 33R. Theback surface 37 will be described later in detail. - As shown in
FIG. 3 , a portion of therestriction part 30 located on the one side (referred to as a restriction part back portion 31) has the firstback step surface 33R, the secondback step surface 34R, and theback surface 37. Theback surface 37 forms a peripheral surface of the restriction part backportion 31. As shown inFIG. 3 , theback surface 37 is curved in an arc shape having a radius larger than that of thefront surface 36 in plan view from above. In theback surface 37, a horizontal distance B1 between left and right ends 37L and 37R and the center C of thefirst connection part 11 is larger than a distance B2 between the center of theback surface 37 in the left-right direction and the center C of thefirst connection part 11. A horizontal distance between the restriction part backportion 31 and the center C of thefirst connection part 11 gradually increases from the center of the restriction part backportion 31 in the left-right direction toward both ends 37R and 37L. Therestriction part 30 is symmetric left and right with respect to the center C of thefirst connection part 11. - As shown in
FIG. 2 , aninclined surface 38 that is inclined frontward toward the lower side in the vertical direction is provided on the downstream side of the restriction part backportion 31. Theinclined surface 38 hangs down from an inner edge of the secondback step surface 34R (seeFIG. 3 ). Theinclined surface 38 extends from the inner edge of the secondback step surface 34R to an upstream end of theinclined part 14 of the drain channelmain body 13. Theinclined surface 38 is inclined toward thedownstream side 22S of thefront surface 22 of theinclined part 14. In other words, as shown inFIG. 2 , a virtualinclined surface 39 extending downward along theinclined surface 38 crosses thedownstream side 22S of thefront surface 22 of theinclined part 14. Theinclined surface 38 is inclined more than thefront surface 36 of therestriction part 30 which faces theinclined surface 38. - The
inclined surface 38 is curved in an arc shape substantially parallel to theback surface 37, as shown inFIG. 3 . That is, a horizontal distance between both ends of theinclined surface 38 in the left-right direction and the center C of thefirst connection part 11 is larger than that between the center of theinclined surface 38 in the left-right direction and the center C of thefirst connection part 11. - Below, some examples of use of the
drain socket 10 according to some embodiments are described. - First, as shown in
FIG. 1 , the toilet bowldrain pipe part 40 and thedrain piping 50 are connected using thedrain socket 10. Thesecond connection part 12 of thedrain socket 10 is connected to thedrain piping 50, and the toilet bowldrain pipe part 40 is inserted into thefirst connection part 11. A lower end of the toilet bowldrain pipe part 40 protrudes downward relative to the lower end of theseal part 62 of the packing 60. - In a state in which the
first connection part 11 is connected to the toilet bowldrain pipe part 40, the restriction part backportion 31 is located behind a back portion (a portion located on the one side) 44 of the toilet bowldrain pipe part 40, as shown inFIG. 1 . In other words, a horizontal distance between the restriction part backportion 31 and thefront surface 22 of theinclined part 14 is larger than that between theback portion 44 of the toilet bowldrain pipe part 40 and thefront surface 22 of theinclined part 14. - As shown in
FIG. 4 , the water discharged from the toilet bowldrain pipe part 40 collides with the restriction part backportion 31, and forms a water film W1 on the downstream side, so that a siphon occurs early. The water that has collided with the restriction part backportion 31 flows down by theinclined surface 38 to thedownstream side 22S, as indicated by arrow X. The flush water that has flowed down from the restriction part backportion 31 joins the flush water that has flowed down from the toilet bowldrain pipe part 40 as shown by arrow Y in thedownstream side 22S, so that a water film W2 is formed. Since the water film forming position is thus low, a strong siphon force is generated. The water that has flowed down to thedownstream side 22S vigorously flows into thebent part 18 as indicated by arrow Z along a nearly vertical inclination of thedownstream side 22S. Thus, the water is strongly pulled downward, so that the siphon force becomes stronger. - In addition, paper or the like flowing down with the water gathers at the restriction part back
portion 31. Here, since the restriction part backportion 31 expands in the left-right direction more largely than in the case where the restriction part backportion 31 has an arcuate surface, paper or the like is less likely to concentrate at the center. Further, since the flow channel area in therestriction part 30 is larger than that in the case where the restriction part backportion 31 has an arcuate surface, paper or the like flows down without being caught. Paper or the like is drawn down vigorously with water by the strong siphon force, and discharged smoothly. - Next, the operation and effects of some embodiments configured as described above will be described.
- The
drain socket 10, in some embodiments, includes thefirst connection part 11 connected to the drain pipe part (drain pipe) of thetoilet bowl 41, thesecond connection part 12 connected to the drain piping 50 in the floor, and the drain channel body part (drain channel body) 13 connecting thefirst connection part 11 andsecond connection part 12. The drainchannel body part 13 includes theinclined part 14 inclined backward toward the downstream side. Arestriction part 30 is provided at an upstream end portion of the drainchannel body part 13. The back surface (back edge surface) 37 of therestriction part 30 has a shape such that the horizontal distance B1 between both ends 37L and 37R in the left-right direction and the center C of thefirst connection part 11 is larger than the horizontal distance B2 between the center of theback surface 37 in the left-right direction and the center C of thefirst connection part 11. According to this configuration, in theback surface 37 of therestriction part 30, both end portions thereof in the left-right direction are located on more outer sides as compared with the case where theback surface 37 has an arc shape having a constant horizontal distance from the center C of thefirst connection part 11. Therefore, paper or the like is less likely to concentrate at the center of theback surface 37 of therestriction part 30, and easily flows down since the flow channel area is large. Thus, the paper or the like can be less likely to be caught at the restriction part backportion 31. - The
front surface 22 of theinclined part 14 has a gradient closer to vertical on the downstream side than on the upstream side. According to this configuration, the flush water that has flowed down from the restriction part backportion 31 to thefront surface 22 of theinclined part 14 is drained vigorously due to the gradient close to vertical of the downstream side of thefront surface 22. Therefore, paper or the like can be less likely to be caught at the drainchannel body part 13. - The
inclined surface 38 that is inclined frontward toward the lower side in the vertical direction is provided on the downstream side of theback surface 37 of therestriction part 30. According to this configuration, the flush water that has collided with the restriction part backportion 31 flows down along theinclined surface 38 to thefront surface 22 of theinclined part 14, and flows down vigorously along thefront surface 22. Thus, the siphon force can be increased. - The restriction part back
portion 31 has the first and second step surfaces 33 and 34 each of which extends in a direction crossing the vertical direction. According to this configuration, a large amount of flush water collides with the restriction part backportion 31, and thus the siphon force can be increased. - In a state in which the
first connection part 11 is connected to the toilet bowldrain pipe part 40, the restriction part backportion 31 is located behind theback portion 44 of the toilet bowldrain pipe part 40. According to this configuration, as compared with the case where the restriction part backportion 31 is located ahead of theback portion 44 of the toilet bowldrain pipe part 40, the flush water that has rebounded from the restriction part backportion 31 goes to a lower position of theinclined part 14. Accordingly, the flush water that has collided with and rebounded from the restriction part backportion 31 and the flush water that flows down from the toilet bowldrain pipe part 40 join together at the lower position of theinclined part 14. As a result, a water film formation position where siphon occurs is lowered, so that the siphon force can be increased. - Below, a
drain socket 70 according to some embodiments is described with reference toFIGS. 5 and 6 . - The
drain socket 70 may be different from one or more other drain socket embodiments described herein in thatdrain socket 70 may, in some embodiments, not include an adjuster part. Same or similar components as those indrain socket 10 are denoted by the same reference numerals, and redundant descriptions thereof are omitted. - The
drain socket 70 may include, in a same or similar manner as described above with respect to drainsocket 10, thefirst connection part 11, thesecond connection part 12, and/or the drainchannel body part 13. In a same or similar manner as described above with respect to drainsocket 10, the drainchannel body part 13 has theinclined part 14, and therestriction part 30 is provided at the upstream end portion of the drainchannel body part 13. In the following description of each component, the direction in which theinclined part 14 is inclined toward the lower side (left side inFIG. 5 ) is back, the opposite direction (right side inFIG. 5 ) is front, the upper side inFIG. 5 is upper, and the lower side inFIG. 5 is lower. Further, in a direction perpendicular to the paper surface inFIG. 5 , the front side of the paper surface is right, and the back side of the paper surface is left. - In the drain channel
main body part 13, thevertical part 21 is continuous with the downstream side of theinclined part 14. In a same or similar manner as described above with respect to drainsocket 10, thefront surface 22 of theinclined part 14 has a gradient closer to vertical on thedownstream side 22S than on theupstream side 22U. - In a same or similar manner as described above with respect to drain
socket 10, therestriction part 30 has the first and second step surfaces 33 and 34 each of which extends in a direction crossing the vertical direction (substantially in a horizontal direction). - In a same or similar manner as described above with respect to drain
socket 10, thefirst step surface 33 has an annular shape formed on the entire circumference of therestriction part 30, and has the first side step surfaces 33S, the firstfront step surface 33F, and the firstback step surface 33R. The first front step surfaces 33F and the firstback step surface 33R have substantially the same width dimension (dimension in the inner-outer direction). - The
second step surface 34 has the second side step surfaces 34S located on both left and right sides of therestriction part 30, and the secondfront step surface 71 located on the front side of therestriction part 30. The second side step surfaces 34S and the secondfront step surface 71 have substantially the same width dimension (dimension in the inner-outer direction). - The peripheral surface of the
restriction part 30 has the pair of left and right side surfaces 35, thefront surface 36, and theback surface 37, in a same or similar manner as described above with respect to drainsocket 10. - The restriction part back
portion 31 has the firstback step surface 33R and theback surface 37. In a same or similar manner as described above with respect to drainsocket 10, theback surface 37 is in some embodiments curved in an arc shape having a radius larger than that of thefront surface 36 in plan view from above. - In a same or similar manner as described above with respect to drain
socket 10, theinclined surface 38 that is inclined frontward toward the lower side in the vertical direction is in some embodiments provided on the downstream side of the restriction part backportion 31. Theinclined surface 38 hangs down from the lower end of theback surface 37. In a same or similar manner as described above with respect to drainsocket 10, theinclined surface 38 is in some embodiments inclined toward thedownstream side 22S of thefront surface 22 of theinclined part 14. - In a same or similar manner as described above with respect to drain
socket 10, theinclined surface 38 in some embodiments has a shape such that a horizontal distance between both ends of theinclined surface 38 in the left-right direction and the center C of thefirst connection part 11 is larger than that between the center of theinclined surface 38 in the left-right direction and the center C of thefirst connection part 11. Theinclined surface 38 is curved in an arc shape that is gentler than that of theback surface 37 in plan view from above. That is, theinclined surface 38 has a radius larger than that of theback surface 37. - As described above, in some embodiments, both end portions of the restriction part back
portion 31 in the left-right direction are located on more outer sides, so that paper or the like is less likely to concentrate at the center of the restriction part backportion 31, in a same of similar manner as described with reference to drainsocket 10, and paper or the like easily flows down since the flow channel area is large. Thus, the paper or the like can be less likely to be caught at the back portion of therestriction part 30. - In a same or similar manner as described above with respect to drain
socket 10, theinclined surface 38 that is inclined frontward toward the lower side in the vertical direction is in some embodiments provided on the downstream side of the restriction part backportion 31. According to this configuration, the flush water that has abutted against the restriction part backportion 31 flows down along theinclined surface 38 to thefront surface 22 of theinclined part 14, and flows down vigorously along thefront surface 22. Thus, the siphon force can be increased. - The restriction part back
portion 31 has thefirst step surface 33 extending in a direction crossing the vertical direction. According to this configuration, a large amount of flush water collides with the restriction part backportion 31, and thus the siphon force can be increased. - The present disclosure is not limited to the embodiments described by the above description and drawings, and the following embodiments are also included in the technical scope of the present disclosure.
- Some descriptions herein have described the cases where the present disclosure is applied to the
drain sockets - In some embodiments, the
restriction part 30 has the first and second step surfaces 33 and 34, but the present disclosure is not limited thereto. The restriction part may have a tapered surface, instead of the step surfaces, in which the flow channel area is reduced toward the downstream side. Further, the restriction part may have three or more step surfaces. - In some embodiments, the
front surface 22 of theinclined part 14 has a gradient closer to vertical on the downstream side than on the upstream side. However, the gradient of the front surface of the inclined part does not necessarily have to be designed in this manner. - In some embodiments, the
inclined surface 38 is provided on the downstream side of the restriction part backportion 31, but the inclined surface does not necessarily have to be provided. - In some embodiments, the pair of side surfaces 35 is substantially parallel, and extends linearly in the front-back direction, but the present disclosure is not limited thereto. The pair of side surfaces may be, for example, gently curved.
- In some embodiments, the
back surface 37 has an arc shape, but the present disclosure is not limited thereto. The back surface has only to have a portion where a horizontal distance from the center of the first connection part increases from the center of the back surface in the left-right direction toward the end sides of the back surface. That is, such a portion may be formed in at least a part of the back surface. - In some embodiments described herein, the
inclined part 14 of the drain socket 10 (or 70) may be inclined backward of thetoilet bowl 41 toward the lower side, but the present disclosure is not limited thereto. The inclined part of the drain socket may be inclined in any direction in the horizontal direction toward the lower side. For example, the inclined part of the drain socket may be inclined frontward, leftward or rightward of the toilet bowl toward the lower side. - In some embodiments, the
inclined part 14 is inclined backward toward the downstream side, but, the present disclosure is not limited thereto. Theinclined part 14 may be inclined frontward toward the downstream side.
Claims (11)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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JP2019-102195 | 2019-05-31 | ||
JP2019102195A JP7247025B2 (en) | 2019-05-31 | 2019-05-31 | Toilet bowl with drain socket and drain socket |
Publications (1)
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US20200378103A1 true US20200378103A1 (en) | 2020-12-03 |
Family
ID=73507108
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US16/888,486 Abandoned US20200378103A1 (en) | 2019-05-31 | 2020-05-29 | Drain socket and drain socket-equipped toilet bowl |
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US (1) | US20200378103A1 (en) |
JP (1) | JP7247025B2 (en) |
CN (1) | CN112012301A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20210404165A1 (en) * | 2019-03-21 | 2021-12-30 | Brigham Young University | Noise reduction pipes, vacuum-assisted toilet systems including the same, and methods of using the same |
US11408161B2 (en) | 2019-03-21 | 2022-08-09 | Brigham Young University | Vacuum-assisted toilet systems and methods of using the same |
US20230146496A1 (en) * | 2020-04-16 | 2023-05-11 | Lixil Corporation | Mobile toilet |
US11702832B2 (en) | 2019-03-21 | 2023-07-18 | Brigham Young University | Vacuum-assisted toilet systems and methods of using the same |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000282553A (en) | 1999-03-30 | 2000-10-10 | Toto Ltd | Siphon type closet bowl |
JP5624337B2 (en) | 2010-02-25 | 2014-11-12 | 株式会社Lixil | Drainage coupler |
JP6353392B2 (en) | 2015-03-31 | 2018-07-04 | 株式会社Lixil | Drain socket support |
JP7187885B2 (en) * | 2017-09-08 | 2022-12-13 | Toto株式会社 | drain socket |
-
2019
- 2019-05-31 JP JP2019102195A patent/JP7247025B2/en active Active
-
2020
- 2020-05-29 CN CN202010472944.4A patent/CN112012301A/en active Pending
- 2020-05-29 US US16/888,486 patent/US20200378103A1/en not_active Abandoned
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20210404165A1 (en) * | 2019-03-21 | 2021-12-30 | Brigham Young University | Noise reduction pipes, vacuum-assisted toilet systems including the same, and methods of using the same |
US11408161B2 (en) | 2019-03-21 | 2022-08-09 | Brigham Young University | Vacuum-assisted toilet systems and methods of using the same |
US11560704B2 (en) * | 2019-03-21 | 2023-01-24 | Brigham Young University | Noise reduction pipes, vacuum-assisted toilet systems including the same, and methods of using the same |
US11702832B2 (en) | 2019-03-21 | 2023-07-18 | Brigham Young University | Vacuum-assisted toilet systems and methods of using the same |
US20230146496A1 (en) * | 2020-04-16 | 2023-05-11 | Lixil Corporation | Mobile toilet |
Also Published As
Publication number | Publication date |
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CN112012301A (en) | 2020-12-01 |
JP7247025B2 (en) | 2023-03-28 |
JP2020197010A (en) | 2020-12-10 |
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