JIG FOR PULLING OUT CONNECTION PIN

• Main Authors: SASAOKA YOSHIO, NAKAMURA HITOSHI
• Format: Patent
• Language: English; Japanese
• Published: 21.12.2017
• Subjects: BLASTING; CRANES; DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS ORMACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS,CLIPS, WEDGES, JOINTS OR JOINTING; DREDGING; ENGINEERING ELEMENTS AND UNITS; FIXED CONSTRUCTIONS; FOUNDATIONS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HAND TOOLS; HAULING; HEATING; HOISTING; HYDRAULIC ENGINEERING; LIFTING; LIGHTING; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS,WINCHES, OR TACKLES; MANIPULATORS; MECHANICAL ENGINEERING; PERFORMING OPERATIONS; PORTABLE POWER-DRIVEN TOOLS; SOIL SHIFTING; THERMAL INSULATION IN GENERAL; TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FORFASTENING, CONNECTING, DISENGAGING OR HOLDING; TRANSPORTING; WEAPONS

PROBLEM TO BE SOLVED: To restrain a component of a jig from abutting on a pin hole when a connection pin is detached from the pin hole, and keep the length of the jig short in the axial direction of the connection pin.SOLUTION: A jig 40 for attaching/detaching a connection pin (a jig for pulling out the connection pin) comprises a cylinder 70, and a connection member 80. The cylinder 70, which is arranged on the radial outside R2 of the connection pin with respect to the connection pin 30, can be expanded/contracted. The connection member 80 is connected to the connection pin 30 and the cylinder 70. The cylinder 70 is extended so that the connection pin 30 can be pulled out with respect to a pin hole H via the connection member 80.SELECTED DRAWING: Figure 1 【課題】連結ピンがピン孔から取り外されたときに治具の構成要素がピン孔に当たることを抑制し、連結ピン軸方向における治具の長さを抑制する。【解決手段】連結ピン脱着用治具４０（連結ピン引抜用治具）は、シリンダ７０と、接続部材８０と、を備える。シリンダ７０は、連結ピン３０よりも連結ピン径方向外側Ｒ２に配置され、伸縮可能である。接続部材８０は、連結ピン３０およびシリンダ７０に接続される。シリンダ７０は、伸長することにより、接続部材８０を介して、ピン孔Ｈに対して連結ピン３０を引き抜く。【選択図】図１