PULLER

摘要

A puller includes a main body, a plurality of hook elements, a plurality of connecting rods, and an operating rod. The main body has a threaded hole and a plurality extending arms, and each extending arm has an abutting trough at an end. Each hook element has at least one claw portion. Two opposite ends of each connecting rod are pivotably connected with one of the hook elements and one of the extending arms. The operating rod has threaded rod screwed with the threaded hole. When the hook element abuts against one of the abutting trough, the extending arm covers at least half the hook element in width to position it. Thereby, durability and stability are improved.

主权项

1. A puller, including:
a main body, defining a center, having a threaded hole at the center and a plurality of extending arms around the center, each extending arm having a first pivot portion and an abutting portion, the abutting portion being located at a free end of the extending arm and including an abutting trough, the abutting trough facing opposite to the center of the main body to be outward and open; a plurality of hook elements, each hook element having at least one claw portion and a second pivot portion, the claw portion being located at a terminal end of the hook element; a plurality of connecting rods, two opposite ends of each connecting rod being pivotably connected with one of the first pivot portions and one of the second pivot portions respectively; an operating rod, having an operating end and an abutting end at two opposite ends respectively, a threaded rod being formed between the operating end and the abutting end, the threaded rod being screwed with the threaded hole of the main body; wherein the abutting trough is adapted for being abutted against by a face of one of the hook elements toward the center of the main body, each hook element has a first positioning mechanism, each abutting trough has a second positioning mechanism on an inner wall thereof, the first positioning mechanism corresponds to the second positioning mechanism to be detachably positioned to the second positioning mechanism so that the hook element is unable to leave the abutting trough freely when the hook element abuts against the abutting trough.