Flush toilet

Abstract

There is provided a flush toilet which can prevent scattering of flush water to the outside of a toilet bowl. The flush toilet includes: a toilet bowl having an erected surface part formed extending in a vertical direction at an upper end part of the toilet bowl and a bowl surface part formed below the lower end of the erected surface part to an inner circumferential side, and a water discharge port opened in the erected surface part and intended to discharge flush water into the toilet bowl. The flush water flows so as to form at least two water streams: a main stream flowing in a peripheral edge of the toilet bowl along the erected surface part and a branch stream branching from the main stream and running down to the bowl surface part side.

1 . A flush toilet comprising:
 a toilet bowl comprising an erected surface part extending in a vertical direction at an upper end part of the toilet bowl and a bowl surface part below a lower end of the erected surface part to an inner circumferential side; and   a water discharge port opened in the erected surface part and configured to discharge flush water into the toilet bowl,   wherein the flush water forms at least two water streams, the at least two water streams comprising a main stream flowing in a peripheral edge of the toilet bowl along the erected surface part and a branch stream branching from the main stream and running down to the bowl surface part side,   wherein the branch stream joins the main stream at a joining part on a downstream side, and   wherein the main stream arrives at the joining part earlier than the branch stream.   
     
     
         2 . The flush toilet of  claim 1 , wherein the joining part is located on a downstream side of a region where a height of the main stream is greatest on a front side of the toilet bowl. 
     
     
         3 . The flush toilet of  claim 1 , wherein the toilet bowl comprises a recessed part continued from a lower end of the bowl surface part to a drain pipe, and
 wherein the bowl surface part is inclined in such a manner that the branch stream after a beginning of discharge from the water discharge port is dropped into the recessed part on an imaginary line connecting the water discharge port and the region where the height of the main stream is greatest in a plan view.   
     
     
         4 . The flush toilet of  claim 1 , wherein a moving distance of the branch stream in a period from when the branch stream branches from the main stream to when the branch stream arrives at the joining part is set to be longer than a moving distance of the main stream in a period from when the branch stream branches therefrom to when the main stream arrives at the joining part.