To provide a cap for protecting a pipe end that is tightly mounted during mounting to the pipe, does not easily remove during midway transportation, and can tightly close the inside of the pipe to some extent.
The cup-type cap for protecting the pipe end is mounted so as to cover the outside of the end of the pipe while disposing a part corresponding to an opening of the cap on the pipe center side and a part corresponding to the bottom on the pipe end side. Thanks to one of the following structures [1] to [3], mounting force is increased and removal is facilitated. [1] A cut line is previously formed from the opening toward the bottom in a peripheral wall of the cap, and a seal tape is adhered to the outside of the peripheral wall so as to cover the cut line. [2] On the peripheral wall of the cap, thickness of the part is thinned so as to cut the part by manually pulling it outward from the opening to the bottom. [3] A perforation is formed in the peripheral wall of the cap so as to cut the part by manually pulling it outward from the opening to the bottom.
ENOMOTO KUNIHIRO
TAKAHATA ISAO
Tomoyuki Yabuki