Title:
KNOCK-IN TOOL
Document Type and Number:
WIPO Patent Application WO/2018/159491
Kind Code:
A1
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.
Inventors:
ISHIKAWA NAOHARU (JP)
KAMIMOTO JUNPEI (JP)
KAMIMOTO JUNPEI (JP)
Application Number:
PCT/JP2018/006703
Publication Date:
September 07, 2018
Filing Date:
February 23, 2018
Export Citation:
Assignee:
MAKITA CORP (JP)
International Classes:
B25C7/00
Domestic Patent References:
| WO2016152862A1 | 2016-09-29 | |||
| WO2007142997A2 | 2007-12-13 |
Foreign References:
| JPH08276375A | 1996-10-22 | |||
| US20140231485A1 | 2014-08-21 | |||
| JPH09507172A | 1997-07-22 |
Attorney, Agent or Firm:
OKADA PATENT & TRADEMARK OFFICE, P. C. (JP)
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