| 摘要 |
A WASHING MACHINE HOSE INCLUDES A WATER RECEIVING PIPE PORTION (1) PROVIDED ON ONE END SIDE OF THE HOSE SO AS TO BE CONNECTED TO A DRAINAGE PIPE (A) PROVIDED IN A WASHING MACHINE, AND A BEND FORMATION PORTION (2) FOR FORMING AN L-SHAPED BENT PORTION FOLLOWING THE WATER RECEIVING PIPE PORTION (1). THE BEND FORMATION PORTION (2) IS MADE TO HAVE A BELLOWS-LIKE CORRUGATED SHAPE CONSTITUTED BY A COMBINATION OF DIFFERENT-DIAMETER ANNULAR PORTIONS (21, 22). BOTH SIDES OF THE BEND FORMATION PORTION (2) IN A LONGITUDINAL DIRECTION OF THE HOSE ARE HELD BY TWO ANNULAR PORTIONS PROJECTING FROM BOTH SIDES OF A BASE PORTION OF A BEND FORMING TOOL SUBSTANTIALLY PERPENDICULARLY THERETO. THE BEND FORMATION PORTION (2) IS BENT AT ALMOST RIGHT ANGLES SO THAT LARGE ANNULAR PORTIONS OF THE BEND FORMATION PORTION (2) CONTACT WITH EACH OTHER UNDER PRESSURE OR ARE MADE EXTREMELY ADJ ACENT TO EACH OTHER AT THE SMALL-DIAMETER SIDE OF THE BENT PORTION OF THE HOSE. (FIG. 1 )
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