JP2013127165A - Flush toilet bowl - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a flush toilet bowl for enabling washing water to flush widely around a bowl part by stabilizing the discharging direction of the washing water discharged from a discharge nozzle.SOLUTION: A flush toilet bowl 1 includes a discharge nozzle 4 inserted through a nozzle insertion hole 3 which is provided passing through the upper part on the lateral or rear side of a bowl part 2, for discharging washing water into the bowl part 2. In front of the nozzle insertion hole 3, a guide part 5 is provided in communication therewith for guiding the washing water discharged from the discharge nozzle 4 to generate a peripheral swirl flow in the bowl part 2. The guide part 5 is formed while being encircled by the upper end of the inner face of the bowl part 2 and an auxiliary guide wall 6 which extends along the upper end of the inner face thereof and holds the discharge nozzle 4 between the upper end of the inner face of the bowl part 2 and itself. In the guide part 5 at a position deviating rearward of the front end of the guide part 5, a holding part 7 is provided for holding the discharge nozzle 4 at its front end.

Description

  The present invention relates to a flush toilet that cleans the inner surface of a bowl portion by generating a swirling flow flowing in the circumferential direction in the bowl portion.

  Conventionally, a flush toilet that cleans the inner surface of the bowl portion by generating a swirling flow flowing in the circumferential direction in the bowl portion has been proposed by Patent Document 1 and the like.

  This flush toilet is inserted into a nozzle insertion hole provided through the rear part on the side of the bowl part, and a discharge nozzle connected to a water supply source is inserted into the bowl part to discharge cleaning water. A swirling flow that flows in the circumferential direction is generated.

JP 2008-95449 A

  However, in the flush toilet described above, the discharge nozzle has the rear end side supported by the nozzle insertion hole, and the front end side is a free end. Therefore, the discharge direction of the cleaning water discharged from the discharge nozzle is not stable, and it may be difficult to spread the swirl flow widely in the bowl portion.

  Therefore, in view of the above circumstances, an object of the present invention is to propose a flush toilet that can stabilize the discharge direction of the cleaning water discharged from the discharge nozzle and spread the cleaning water widely in the bowl portion. .

  In order to solve the above-mentioned problems, the flush toilet of the present invention has a discharge nozzle for discharging cleaning water into the bowl portion inserted through a nozzle insertion hole provided penetrating the side or rear upper portion of the bowl portion. A flush toilet, wherein a guiding portion for guiding the washing water discharged from the discharge nozzle to generate a swirling flow flowing in the circumferential direction in the bowl portion is communicated with the front of the nozzle insertion hole. The guide portion is formed by being surrounded by an upper end portion of the inner surface of the bowl portion and an auxiliary guide wall that is provided along the upper end portion of the inner surface and sandwiching the discharge nozzle between the upper end portions of the inner surface. The holding portion for holding the front end portion of the discharge nozzle is provided at a position shifted backward from the front end in the guide portion.

  Further, it is preferable that the discharge nozzle is held by the holding portion in a state where the front end side is inclined downward.

  The flush toilet of this invention can stabilize the discharge direction of the wash water discharged from the discharge nozzle, and can spread the wash water widely in the bowl portion.

The principal part of the flush toilet of embodiment of this invention is shown, (a) is the front sectional view cut | disconnected by the surface containing the front end of a guidance | induction part, (b) is a surface containing the AA line of (a). FIG. It is a disassembled perspective view which shows the flush toilet bowl same as the above.

  The present invention will be described based on embodiments shown in the accompanying drawings. The flush toilet 1 of this embodiment has a structure as shown in FIG. 2, for example.

  The flush toilet 1 is mainly composed of a toilet body 10, a support frame 11, a toilet device 12, a trap portion 13, a rear cover 14, a side cover 15, and an upper cover 18 having a toilet seat 16 and a toilet lid 17. The The toilet body 10 is fixed to the front portion of the support frame 11 with screws or the like and supported by the support frame 11. Further, the toilet-equipped device 12 is fixed to the rear portion of the support frame 11 with screws or the like and supported by the support frame 11. The trap unit 13 is disposed below the toilet device 12. The toilet installation device 12, the support frame 11, and the trap portion 13 are concealed by the rear cover 14, the side cover 15, the upper cover 18, and the toilet body 10.

  The toilet body 10 includes a skirt portion 8 having a substantially C-shaped flat cross section as an outer shell, a bowl portion 2 disposed at an upper portion inside this, and a rim portion 9 disposed on the bowl portion 2 inside the skirt portion 8. And are integrated by welding. The toilet body 10 is made of synthetic resin. The bottom portion of the bowl portion 2 includes a water reservoir portion 20 and a discharge cylinder portion (not shown) connected in communication with the rear trap portion 13. The trap unit 13 includes a trap case and a trap (not shown) whose rear end is vertically rotated by a motor inside the trap case. A discharge cylinder portion of the bowl portion 2 is connected to the front end of the trap.

  The toilet device 12 includes a discharge nozzle 4 for discharging cleaning water into the bowl portion 2, a water supply pipe 40 connected to a water supply (not shown) and supplying water to the discharge nozzle 4, and water discharged from the discharge nozzle 4. And a control unit (not shown) for controlling the above. The discharge nozzle 4 is formed of a non-deformable straight cylindrical body. The toilet-equipped device 12 further includes a hot water cleaning device for local cleaning, a drying device, a deodorizing device, and the like. These hot water cleaning apparatus, drying apparatus, and deodorizing apparatus perform local cleaning, local drying, and deodorization through an opening 90 provided at the rear of the rim section 9, respectively.

  Subsequently, the bowl part 2, the rim part 9 and the discharge nozzle 4 will be described in more detail with reference to FIGS. 1 (a) and 1 (b).

  As shown in FIG. 1A, the rim portion 9 has an upper plate portion 91 extending inward over the entire periphery of the upper end opening edge of the bowl portion 2, and extends downward from the tip (inner end). The side plate portion 92 and a lower plate portion 93 extending outward from the front end (lower end) thereof.

  The upper end portion of the bowl portion 2 includes an outer peripheral wall portion 21 extending vertically and a bottom wall portion 22 extending inward from the lower end. The upper surface 23 of the bottom wall portion 22 has a structure with a slight downward slope toward the inside of the bowl portion 2. An opening groove portion 24 that is surrounded by the outer peripheral wall portion 21, the bottom wall portion 22, and the lower plate portion 93 of the rim portion 9 and opens inward is formed on the upper end portion of the bowl portion 2 over substantially the entire circumference. Yes. In the present embodiment, in the upper part on the rear side of the side of the bowl portion 2, the end portion 26 of the opening groove portion 24 overlaps the inside of the start end portion 25 of the opening groove portion 24.

  Specifically, the outer peripheral wall portion 21 has an annular shape in a plan view, but at the rear portion on the side of the bowl portion 2, as shown in FIG. It is substantially L-shaped in plan view when bent.

  An auxiliary guide wall 6 is formed in an arc shape in a flat cross section from the inflection point bent to the outside, and this auxiliary guide wall 6 is continuous with the outer peripheral wall portion 21 in front of the inflection point (rear side). . The auxiliary guide wall 6 is provided so as to protrude upward from the inner surface of the bowl part 2 at the upper part on the rear side of the bowl part 2.

  An upper end portion of the inner surface of the rear side of the side of the bowl portion 2 (that is, an inner surface of the outer peripheral wall portion 21 having a substantially L shape in plan view and an upper surface 23 of the bottom wall portion 22 continuous thereto) The guide portion 5 is formed by being surrounded by the outer surface of the auxiliary guide wall 6 positioned along the inside of the letter-shaped outer peripheral wall portion 21. The guiding portion 5 is for guiding the cleaning water discharged from the discharge nozzle 4 to generate a swirling flow flowing in the circumferential direction in the bowl portion 2.

  Of the outer peripheral wall portion 21 having a substantially L shape in plan view, the nozzle insertion hole 3 is provided through the rear wall 210 extending outward in the front-rear direction. The discharge nozzle 4 is inserted into the nozzle insertion hole 3 from behind, and the discharge nozzle 4 is accommodated in the guide portion 5. That is, the discharge nozzle 4 has an upper end portion (an inner surface of the outer peripheral wall portion 21 that is substantially L-shaped in plan view and an upper surface 23 of the bottom wall portion 22 continuous therewith) on the rear inner surface on the side of the bowl portion 2. It is sandwiched between the auxiliary guide walls 6 and stored in the guide portion 5.

  In the guide portion 5, a holding portion 7 for holding the front end portion of the discharge nozzle 4 is provided at a position shifted backward from the front end of the guide portion 5. Thereby, the direction of the flow of the cleaning water discharged from the discharge nozzle 4 can be guided by the guide portion 5.

  The holding unit 7 includes an upper holding unit 70 that holds the front end of the discharge nozzle 4 from above, and a side holding unit 71 that holds the front end of the discharge nozzle 4 from the outside. In the present embodiment, the front end portion of the discharge nozzle 4 is held between the upper holding portion 70 and the upper surface 23 of the bottom wall portion 22 so that it cannot move vertically. The front end portion of the discharge nozzle 4 is held between the side holding portion 71 and the outer side surface 60 of the auxiliary guide wall 6 so that it cannot move left and right. Thus, the front end portion of the discharge nozzle 4 is held by the upper holding portion 70 and the upper surface 23 of the bottom wall portion 22, and the side holding portion 71 and the outer side surface 60 of the auxiliary guide wall 6. Is prevented. That is, in this embodiment, the upper surface 23 of the bottom wall portion 22 and the outer surface 60 of the auxiliary guide wall 6 also constitute the holding portion 7.

  In the present embodiment, the upper holding portion 70 is formed so as to protrude downward from the lower surface of the lower plate portion 93 of the rim portion 9. A plurality of ribs 94 (two in the drawing) are formed on the base end portion (upper end portion) of the upper holding portion 70 to improve the strength. The rib 94 may be formed not only on the front side of the upper holding portion 70 but also on the rear side. And the location which contacts the discharge nozzle 4 among the protrusion front end surface 72 (lower end surface) of the upper holding | maintenance part 70 becomes circular arc shape with the same curvature as the outer peripheral surface of the discharge nozzle 4. FIG. Thereby, the upper holding | maintenance part 70 can hold | maintain the discharge nozzle 4 in a state with high adhesiveness. In the present embodiment, the upper holding unit 70 holds the discharge nozzle 4 from the upper end to the outer end, and can suppress not only the upward displacement of the discharge nozzle 4 but also the outward displacement. ing.

  Moreover, the side holding | maintenance part 71 is made to protrude inside from the inner surface of the side wall 211 extended ahead among the outer peripheral wall parts 21 of planar view substantially L-shape. And the location which contacts the discharge nozzle 4 among the protrusion front end surfaces 73 (inner side surface) of the side holding | maintenance part 71 becomes circular arc shape with the same curvature as the outer peripheral surface of the discharge nozzle 4. FIG. Thereby, the side holding | maintenance part 71 can hold | maintain the discharge nozzle 4 in a state with high adhesiveness.

  In the present embodiment, the upper holding portion 70 and the side holding portion 71 are provided so as to be shifted in the front-rear direction. Thereby, when the discharge nozzle 4 is inserted from the rear, the timing of the vertical movement restriction by the upper holding part 70 and the right and left movement restriction by the side holding part 71 can be shifted, which makes it easy to insert.

  In the present embodiment, the holding portion 7 is formed so that the radial center portion of the discharge nozzle 4 held by the holding portion 7 is positioned lower than the radial center portion of the nozzle insertion hole 3. ing. That is, the discharge nozzle 4 is held by the holding portion 7 in a state where the front end side is inclined downward. As a result, it is difficult for the cleaning water to remain in the discharge nozzle 4, and when the cleaning water is newly discharged from the discharge nozzle 4, the generation of abnormal noise due to the residual water, the occurrence of splashing of the residual water, and the like are suppressed. be able to.

  In the above-described embodiment, the discharge nozzle 4 is held in contact with the upper surface 23 of the bottom wall portion 22 and the outer surface 60 of the auxiliary guide wall 6, but a protrusion is provided on the upper surface 23 and the outer surface 60. The discharge nozzle 4 may be held in contact with the protrusion.

  In the flush toilet 1 described above, when the discharge nozzle 4 is inserted into the nozzle insertion hole 3 and the front end portion of the discharge nozzle 4 is held by the holding portion 7, the front end portion of the discharge nozzle 4 is moved inside the guide portion 5. It is fixed at a position shifted backward from its front end. Therefore, the discharge direction of the cleaning water discharged from the discharge nozzle 4 can be stabilized in a certain direction, and the cleaning water having a stable flow direction can be guided by the guide portion 5. As a result, the cleaning water can flow in the opening groove 24 over substantially the entire circumference of the bowl portion 2, and the cleaning water flowing through the opening groove 24 partially flows in the circumferential direction toward the water reservoir 20. Thus, a swirling flow that flows in the circumferential direction in the bowl portion 2 can be generated. Therefore, in the flush toilet 1 of this embodiment, the inner surface of the bowl part 2 can be wash | cleaned widely.

  As described above, the flush toilet 1 of the present embodiment has the inside of the bowl portion 2 in the nozzle insertion hole 3 provided so as to penetrate the upper portion of the side of the bowl portion 2 or the rear side (the rear side in the drawing). And a discharge nozzle 4 for discharging cleaning water. In front of the nozzle insertion hole 3, a guide portion 5 for guiding the cleaning water discharged from the discharge nozzle 4 and generating a swirling flow flowing in the circumferential direction in the bowl portion 2 is provided in communication. The guide portion 5 includes an upper end portion of the inner surface of the bowl portion 2 and an auxiliary guide wall 6 provided along the upper end portion of the inner surface and sandwiching the discharge nozzle 4 between the upper end portions of the inner surface of the bowl portion 2. It is surrounded by. And the holding | maintenance part 7 for hold | maintaining the front-end part of the discharge nozzle 4 is provided in the position which shifted | deviated back from the front end among the insides of the guidance | induction part 5. FIG.

  With this configuration, in the flush toilet 1 of the present embodiment, the front end portion of the discharge nozzle 4 inserted through the nozzle insertion hole 3 is behind the front end in the guide portion 5 by the holding portion 7. It can be held at a position that is shifted to Thereby, the vibration and displacement of the front end portion of the discharge nozzle 4 can be prevented, and the cleaning water can be stably discharged from the discharge nozzle 4 into the guide portion 5. Accordingly, since the cleaning water can be stably guided in the guide portion 5, a swirl flow flowing in the circumferential direction on the inner surface of the bowl portion 2 can be generated more reliably, and the cleaning water can be spread widely in the bowl portion 2. Can be made.

  Moreover, in the flush toilet 1 of this embodiment, the discharge nozzle 4 is hold | maintained by the holding | maintenance part 7 in the state in which the front end side inclined downward.

  In this way, in the flush toilet 1 of the present embodiment, substantially all of the cleaning water in the discharge nozzle 4 is stably discharged into the guide portion 5 by tilting the front end side of the discharge nozzle 4 downward by the holding portion 7. be able to. Further, when the cleaning water is newly discharged from the discharge nozzle 4, it is possible to prevent the generation of noise due to the remaining water and the occurrence of jumping of the remaining water.

  Although the present invention has been described based on the embodiments shown in the accompanying drawings, the present invention is not limited to the above-described embodiments, and appropriate design changes can be made within the intended scope of the present invention. Is possible.

DESCRIPTION OF SYMBOLS 1 Flush toilet 2 Bowl part 3 Nozzle insertion hole 4 Discharge nozzle 5 Guide part 6 Auxiliary guide wall 7 Holding part

Claims (2)

A flush toilet comprising a nozzle insertion hole provided penetrating to the side or rear upper part of the bowl part, and a discharge nozzle for discharging cleaning water into the bowl part,
A guiding portion for guiding the cleaning water discharged from the discharge nozzle to generate a swirling flow flowing in the circumferential direction in the bowl portion is provided in communication with the front of the nozzle insertion hole;
The guide portion is formed by being surrounded by an upper end portion of the inner surface of the bowl portion and an auxiliary guide wall that is provided along the upper end portion of the inner surface and sandwiching the discharge nozzle between the upper end portion of the inner surface,
A flush toilet, wherein a holding portion for holding the front end portion of the discharge nozzle is provided at a position shifted backward from the front end in the guide portion.   The flush toilet according to claim 1, wherein the discharge nozzle is held by the holding portion in a state in which a front end side is inclined downward.

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