公开(公告)号：US20190009401A1

公开(公告)日：2019-01-10

申请号：US16131534

申请日：2018-09-14

Applicant: CHING-CHING TSAI

Inventor： CHING-CHING TSAI

IPC: B25G1/10 ,  B25B23/16

Abstract: A handle of a hand tool includes a body made of a first material and a bit is connected to the bottom of the body. A buffering portion made of a second material integrally formed to the outside of the body. The second material has a proper elasticity and is less hard than the first material. A grasp portion made of a third material integrally formed with the buffering portion. The second material is less hard than the third material. The grasp portion has multiple recesses for easily grasp by the user. The buffering portion buffers or absorbs the shifting of the grasp portion to maintain the bit to be perpendicular to the top face of the bolt head so as to effectively drive the bolt.

公开(公告)号：US20170136618A1

公开(公告)日：2017-05-18

申请号：US14940203

申请日：2015-11-13

Applicant: CHING-CHING TSAI

Inventor： CHING-CHING TSAI

IPC: B25G1/10 ,  B25B23/16 ,  B25B15/04

CPC classification number: B25G1/102 ,  B25B15/02 ,  B25B15/04 ,  B25B23/16

Abstract: A handle of a hand tool includes a body made of a first material and a bit is connected to the bottom of the body. A buffering portion made of a second material integrally formed to the outside of the body. The second material has a proper elasticity and is less hard than the first material. A grasp portion made of a third material integrally formed with the buffering portion. The second material is less hard than the third material. The grasp portion has multiple recess for easily grasp by the user. The buffering portion buffers or absorbs the shifting of the grasp portion to maintain the bit to be perpendicular to the top face of the bolt head so as to effectively drive the bolt.