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1. (WO2018159491) KNOCK-IN TOOL

Pub. No.:    WO/2018/159491    International Application No.:    PCT/JP2018/006703
Publication Date: Sat Sep 08 01:59:59 CEST 2018 International Filing Date: Sat Feb 24 00:59:59 CET 2018
IPC: B25C 7/00
Applicants: MAKITA CORPORATION
株式会社マキタ
Inventors: ISHIKAWA Naoharu
石川 直治
KAMIMOTO Junpei
紙元 順平
Title: KNOCK-IN TOOL
Abstract:
There is a need for a knock-in tool which performs knock-in if both a trigger and a contact arm are turned on, and in which inadvertent knock-in operations are inhibited, even if the contact arm interferes with another part when the trigger is being carried while turned on. In electrical control-type timer control in the prior art, a knock-in tool cannot be used in an environment with no power supply. In the present invention, timer control is enabled even in an environment with no power supply. As a result of turning on a trigger (12), a contact restriction member (21) starts to rotate towards the lock side, while rotational resistance is being received from a rotational resistance imparting member. After the trigger is turned on, and a reference time t has passed, a lock part (21e) enters a lock receiving part (6c), turning on of a contact arm (6) is set in a prohibited state, and inadvertent knock-in operations are prohibited. Timer control is performed in an environment with no power supply using a timer mechanism (20) having a completely mechanical configuration such as that above.