| 摘要 |
<p>PURPOSE:To enable easy screwing of a backing member into double circular tube in a simple work by expanding the diameter of a contact bonding cylinder toward the inner wall surface of a spiral backing member and forcibly urging the cylinder thereto and screwing the backing member into the double circular tube. CONSTITUTION:A contact bonding cylinder 34 reduced in diameter is first inserted into a backing member 18, and is expanded then in diameter. This is executed by engaging a box spanner with a force nut 30 and turning it to move the nut 30 leftwardly of the drawing. When the nut 30 is moved leftwardly, a wedge 28 is slidably moved through a thrust bearing 42 in the direction as designated by an arrow. Accordingly, a slide member 36 is protruded from the long hole of a supporting cylinder 32 to thereby cause the cylinder 34 to be urged onto the inner wall surface of the backing member 18. The member 18 is thus screwed into the cylinder 16 upon rotation of a handle 50. When the nut 30 is then slidably moved to the right of the drawing, the cylinder 34 is separated from the inner wall surface to thereby draw out this device from a fluid pressure feed tube 12.</p> |
