PILE CHUCK DEVICE

• Main Authors: TAKAHASHI KAZUNARI, KITAMURA MORIO, HAMAGUCHI SOTA
• Format: Patent
• Language: English; Japanese
• Published: 08.06.2015
• Subjects: EMBANKMENTS; EXCAVATIONS; FIXED CONSTRUCTIONS; FOUNDATIONS; HYDRAULIC ENGINEERING; SOIL SHIFTING; UNDERGROUND OR UNDERWATER STRUCTURES

PROBLEM TO BE SOLVED: To provide a pile chuck device that is configured to fix a pile to a construction machine such as a pile press-in machine and that facilitates replacement of teeth formed on surfaces, abutting on the pile, of claws holding the pile.SOLUTION: A pair of claws 101, 102 holding a pile has teeth 21 formed on surfaces abutting on the pile respectively, and guide surfaces 31, 32 and 51, 52 formed above and below abutting surfaces while retracted from the abutting surfaces obliquely in a leaving direction (X) so as to guide a plate-like part of the pile to the gap where the abutting surfaces face each other. At least one claw 101 between the pair of claws is a movable claw 101. The movable claw 101 comprises a tooth part 20 having teeth, and a claw body 30 which has a fitting part 40 fitted with the tooth part and the guide surfaces 31, 32, and is fixed to a movable end of an actuation cylinder. The fixed claw 102 comprises a tooth part 20 having teeth, and a claw body part 50 which has a fitting part 40 fitted with the tooth part and the guide surfaces 51, 52, and is fixed to a pile chuck device body. 【課題】杭圧入機等の施工機械に杭を固定するための杭チャック装置において、杭を挟持する爪の杭に当接する面に形成された歯の交換を容易に行う。【解決手段】杭を挟持する一対の爪１０１，１０２のそれぞれには、杭に当接する当接面に歯２１が形成されるとともに、当接面の上下に、当接面同士が対向する隙間に杭の板状部分を案内するために当接面より離間方向（Ｘ）に傾斜して後退した案内面３１，３２，５１，５２が形成される。一対の爪のうち少なくとも一方１０１が可動爪１０１である。可動爪１０１は、歯を有する歯部２０と、歯部が取り付けられる取付部４０及び案内面３１，３２を有し作動シリンダの可動端に固定される爪本体部３０とからなる。固定爪１０２は、歯を有する歯部２０と、歯部が取り付けられる取付部４０及び案内面５１，５２を有し杭チャック装置本体に固定される爪本体部５０とからなる。【選択図】図３