| 摘要 |
<p>PURPOSE:To improve vibration resistance by arranging guide faces of guide sections nearly parallel with the lines connecting the guide sections and a fulcrum section on the front view. CONSTITUTION:Adjusting screws 13h, 13v of aiming adjustment sections 41h, 41v are made of synthetic resin to improve the lightweight property and corrosion resistance. Nut bodies 22 screwed to the adjusting screws 13h, 13v are located on the side faces on the opposite sides to each other in the direction perpendicular to the axial direction of the adjusting screws 13h, 13v and have elastic sections 27 with elasticity in the direction perpendicular to the axial direction of the adjusting screws 13h, 13v, guide sections 10 with guide faces, which are extended nearly in the axial direction of the adjusting screws 13h, 13v and brought into elastic contact with the elastic sections 27 of the nut bodies 22, are provided on a fixed member 53, and the guide faces of the guide sections 10 are arranged nearly in parallel with the lines connecting the guide sections 10 and a fulcrum section 40 on the front view. Even if vibration occurs during running, the vibration of the nut bodies 22 is stopped by the guide sections 10 provided on the fixed member 53, and no deflection is generated by vibration although the adjusting screws 13h, 13v are made of synthetic resin. Vibration resistance is improved.</p> |
