公开(公告)号：US06202516B1

公开(公告)日：2001-03-20

申请号：US09310228

申请日：1999-05-12

申请人： Kwang-Moo Kim

发明人： Kwang-Moo Kim

IPC分类号： B56B1312

CPC分类号： B25B13/08 ,  B25B13/12 ,  B25B13/46

摘要： A wrench includes a handle portion and a head portion coextensively connected with the handle portion. The head portion of the wrench has opposing flat surface faces and first and second jaw portions defining a substantially arcuate crescent interior of the wrench head. A slot is formed in the first jaw portion, the slot having a hole formed at a base end thereof through the head portion for access from an external peripheral surface of the head portion. A block member is slidably received within the slot, the block member including a base end and an exposed end, the exposed end protruding into the open crescent area, and a threaded hole formed in the base of the block member. A coiled spring is positioned between a base end of the block member and the base end of the slot, and a screw having a shank and a threaded tip at one end of the shank is inserted into the base of the block via the hole formed at the base of the first jaw portion, through the coiled spring, and is secured by engaging the threaded portions of the screw and the block. A securing bracket prevents displacement of the block member from the slot. The block member is adjustable to the extent that the spring compresses and otherwise functions as if it were integrally formed with the first jaw portion of the wrench head.

摘要翻译： 扳手包括手柄部分和与手柄部分共同连接的头部部分。 扳手的头部具有相对的平坦表面面，并且第一和第二钳口部分限定了扳手头部的基本上弓形的新月形内部。 在第一钳口部分形成槽，该槽具有形成在其基端的孔，通过头部从头部的外周面进入。 块构件可滑动地容纳在所述槽内，所述块构件包括基端和露出端，所述暴露端突出到所述开口月牙区域中，并且所述螺纹孔形成在所述块构件的基部中。 螺旋弹簧位于块构件的基端和槽的基端之间，并且具有柄和在柄的一端的螺纹尖端的螺钉通过形成在孔的孔中插入块的基部中 第一颚部的基部通过螺旋弹簧，并且通过接合螺钉和块的螺纹部分而被固定。 固定支架防止块件从槽中移位。 挡块构件可调节到弹簧压缩的程度，否则其功能就好像它与扳手头的第一钳口部分整体形成一样。