| 摘要 |
<p>PURPOSE:To remove a come-along-less device used for a method of prefabricated construction on a ground without employing midair riding operation and a bench. CONSTITUTION:A come-along-less device consists of a pair of holding members 4a, 4b formed so as to cover the outer circumferences of clevis fittings 2 while being divided into two, a hinge section 5, which is mounted at one connecting end of a pair of the holding members 4a, 4b and in which these holding members 4a, 4b are joined rotatably centering around one connecting end, a locking mechanism 6 installed at the other end connecting end of a pair of the holding members 4a, 4b and operated from the outside, link mechanisms 10a, 10b, in which one end sections are connected rotatabiy onto the side faces of a pair of the holding members 4a, 4b separated at fixed distances from the hinge section 5 respectively while the other end sections are mutually joined rotatably, a safe mounting piece 7 set up to either one outside of a pair of the holding members 4a, 4b and a pair of projections 21a inserted into recessed sections 2a, 2b formed to the outer circumferences of the clevis fittings 2 fitted inside a pair of the holding members 4a, 4b respectively.</p> |
