公开(公告)号：US11052522B2

公开(公告)日：2021-07-06

申请号：US16483826

申请日：2018-02-23

Applicant: MAKITA CORPORATION

Inventor： Naoharu Ishikawa ,  Junpei Kamimoto

IPC: B25C1/04 ,  B25C5/11 ,  B25C7/00

Abstract: A driving tool having a trigger, such that after the trigger is on-operated, a contact restriction member starts to rotate to a lock side while rotation resistance is applied thereto by a rotation resistance applying member. A lock portion enters a lock receiving portion to prohibit an on-operation of a contact arm after a reference time has passed after the on-operation of the trigger. As a result, an inadvertent driving operation can be prevented. A mechanical timer mechanism allows for a timer control to be effected under an environment where electric power cannot be supplied.

公开(公告)号：US10773366B2

公开(公告)日：2020-09-15

申请号：US16020583

申请日：2018-06-27

Applicant: MAKITA CORPORATION

Inventor： Junpei Kamimoto ,  Noriyuki Nishido

IPC: B25C1/04

Abstract: A driving tool is provided with first and second grease reservoirs for supplying grease to seal rings present on the outer and inner peripheral circumferences of a head valve in contact with a spring guide. Because of this configuration, wearing off of resistance of the seal rings due to gradual loss of grease can be improved and air leakage therefrom can also be prevented, which can improve durability of the driving tool.