Makita Corporation

Naoharu Ishikawa

Noriyuki Nishido

Isao Miyashita

Nobuyuki Kakuda

Junpei Kamimoto

Hiroyuki Fukui

A contact restriction member is configured to move from an unlock position to a lock position within a predetermined time period by using an intermittent rotation movement of a restriction wheel. The contact restriction member may prevent substantial movement of a contact arm when the contact restriction member is in the lock position.

Driving tool

A driving tool including a timer assembly less susceptible to heat operates at a stable operating speed. The driving tool includes a trigger, a contact arm, and a timer assembly that operates in response to the trigger moving to a trigger-on-position with the contact arm remaining at an arm-off-position. The timer assembly includes a flywheel rotatable in response to the trigger moving to the trigger-on-position, and a contact restrictor movable between an unlock position at which the contact restrictor allows the contact arm to move to an arm-on-position and a lock position at which the contact restrictor restricts the contact arm from moving to the arm-on-position. The contact restrictor takes a predetermined period to move from the unlock position to the lock position in response to the trigger moving to the trigger-on-position. The predetermined period is defined by an inertial force generated by rotation of the flywheel.

A driving tool allows easy assembly and effective illumination of an area around a nozzle. A driving tool includes a striking mechanism that strikes a fastener, a body including the striking mechanism and an illuminator, a nozzle to allow ejection of the fastener struck by the striking mechanism, and a light guide between the illuminator and the nozzle.

In driving tools that perform driving actions on the condition that both the trigger and contact arm are activated, when the reference time t is reached after the trigger is activated, the power supply to the actuator is cut off, thereby allowing the contact arm stopper element to be moved to the lock position. The lock arm prohibits activation of the contact arm. The quicker motion of the actuator achieves a smoother transition to the locked state.

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.

A driving tool including a first mode wherein a mechanical starting control is performed, and a second mode wherein an electrical starting control is performed, where these modes are configured to be switchable. Only in the second mode, if the elapsed time between the on-operation of a trigger and an on-operation of a contact arm does not exceed a reference time T, then a second actuation portion can be turned to an on-position to perform a driving operation. In the first mode, in contrast to the electric control, without consuming battery power, the driving operation can be performed by the mechanical control that is made by an operational order of the trigger and subsequently the contact arm. Because of this configuration, even if power supply is shut off, the driving operation by the first mode can be continued.

A driving tool may include a tool body, a magazine and a restricting member. The magazine may be coupled to the tool body and may be configured to store a fastener strip having fasteners connected in series with each other. The restricting member may be configured to permit the fastener strip to be inserted into the magazine to a predetermined position when the fastener strip is in a first orientation. The restricting member may prevent the fastener strip from being inserted into the magazine in the feeding direction to reach the predetermined position when the fastener strip is in a second orientation that is different from the first orientation.

Driving tools

A driving tool is provided in which contact arms of the driving tool are symmetrically arranged at lateral sides of the drive passage, and contact portions of the contact arms are movable between an ON position and an OFF position. Further, the driving tool is configured such that each contact portion is independently movable between the ON position and the OFF position, and when both of the contact portions are moved to the ON position, the driving operation of a drive unit is allowed to operate, and when only one of the contact portions is moved to the ON position, the driving operation of the drive unit is not allowed to operate.

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Anjo, Japan

Naoharu Ishikawa