Title:
PENETRATION TYPE ELECTRIC TYPE RATCHET WRENCH AND USE METHOD THEREOF
Document Type and Number:
Japanese Patent JP2018130820
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a penetration type electric type ratchet wrench and a use method thereof.SOLUTION: A penetration type electric type ratchet wrench comprises: a body; a drive device which is rotatably attached to the body; an engagement device connected to the drive device; a power device for providing torque; a transmission attached between the drive device and the power device; and a ratchet device. The drive device has a drive tool which is engaged to the body, the drive tool contains a non-circular hole which penetrates the drive tool and which can be connected to a fastener, a ring gear part connected to the engagement device, and a distal tooth part connected to the transmission. The transmission transmits the torque for making the drive tool link, and when resistance when the drive tool drives the fastener is smaller than provision torque, the drive tool continuously drives the fastener, and when the resistance when the drive tool drives the fastener is larger than the provision torque, the body is rotated by man power, the drive tool is made to link, and the fastener is made to pass the position.SELECTED DRAWING: Figure 1
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Inventors:
HU BOBBY
Application Number:
JP2017082437A
Publication Date:
August 23, 2018
Filing Date:
April 19, 2017
Export Citation:
Assignee:
KO KOHI
International Classes:
B25B21/00; F16D7/04; F16H1/12
Domestic Patent References:
| JPS62136378A | 1987-06-19 | |||
| JPH0531873U | 1993-04-27 | |||
| JP3022387U | 1996-03-22 | |||
| JP3056422U | 1999-02-16 |
Foreign References:
| US2614418A | 1952-10-21 |
Attorney, Agent or Firm:
Tadashige Ito
Tadahiko Ito
Shinsuke Onuki
Tadahiko Ito
Shinsuke Onuki