Loading patent…
AssigneeShonan Gosei-Jushi Seisakusho K.K.
InventorsTakao Kamiyama, Koji Kaneta
Estimating the term…
A spacer is constituted by overlapping on a first wedge-shaped member, whose upper surface is inclined at a prescribed angle, a second wedge-shaped member, whose lower surface is inclined at the same angle. This spacer is inserted in the gap between a inner wall surface of an existing pipe and the outer periphery of a rehabilitating pipe. Latching teeth are formed in the inclined surfaces of the first and second wedge-shaped members so that, when pressing the second wedge-shaped member to move it toward the first wedge-shaped member in the insertion direction, it cannot move in the direction the reverse of the insertion direction. Upon moving the second wedge-shaped member to the respective latch positions, the overall height of the spacer is successively increased in steps at a fine pitch, thus enabling the adjustment of the position of the rehabilitating pipe with respect to the existing pipe to be performed simply.
A spacer inserted in a gap between an existing pipe and a rehabilitating pipe to adjust the position of the rehabilitating pipe with respect to the existing pipe, comprising:
Dependencies are inferred from the claim text.