IP Library Granted Patent US 11,338,377
Granted Patent B2
US 11,338,377 · App. 16/303,365 · Granted May 24, 2022

Power tool

Inventors: Koji Ohta (Kyoto, JP); Naoki Hattori (Kyoto, JP); Isao Haneishi (Nagano, JP)
Assignee: MAXELL IZUMI CO., LTD.
B23D35/005B23D29/002B23D35/001H02G1/1221
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Quick Facts
Patent No.
US 11,338,377
App. No.
16/303,365
Granted
May 24, 2022
Kind
B2
Abstract

A power tool includes a cutting unit configured to perform a cutting action, and a cutting action input unit configured to turn the cutting action on and off. The cutting action input unit is configured to, when the cutting action input unit is turned on, cause the cutting unit to move in a direction of an end position of the cutting action, and when the cutting action input unit is turned off, cause the cutting unit to stop moving in a case where the cutting action has not ended at a time when the cutting action input unit is turned off, and move in a direction of a standby position at which the cutting unit was located prior to a start of the cutting action in a case where the cutting action has ended at the time when the cutting action input unit is turned off.

Claims (21)

1. A power tool, comprising:

a cutting unit configured to perform a cutting action; and

a cutting action input unit configured to turn the cutting action on and off,

wherein the cutting action input unit is configured to:

when the cutting action input unit is turned on, cause the cutting unit to move in a direction of an end position of the cutting action; and

when the cutting action input unit is turned off, cause the cutting unit to: (i) stop moving in a case where it is detected, by detecting that a motor load current is greater than or equal to a predetermined value, that the cutting action has not ended at a time when the cutting action input unit is turned off, and (ii) move in a direction of a standby position at which the cutting unit was located prior to a start of the cutting action by a movement amount selected from a plurality of preset movement amounts in a case where it is detected that the cutting action has ended at the time when the cutting action input unit is turned off; and

wherein the power tool is configured to select the movement amount using information about a remaining power level of the power tool.

2. The power tool according to claim 1 , further comprising:

a movement amount adjuster configured to freely adjust the movement amount in the direction of the standby position.

3. The power tool according to claim 1 , wherein

the cutting unit is configured to detect an end of the cutting action by detecting both a cutting start of a cutting target and a cutting end of the cutting target.

4. The power tool according to claim 1 , wherein

the power tool is configured to adjust the movement amount by controlling a movement time in which the cutting unit is caused to move in the direction of the standby position.

5. A power tool, comprising:

a cutting unit configured to perform a cutting action;

a cutting action input unit configured to turn the cutting action on and off,

wherein the cutting action input unit is configured to:

when the cutting action input unit is turned on, cause the cutting unit to move in a direction of an end position of the cutting action; and

when the cutting action input unit is turned off, cause the cutting unit to move in a direction of a standby position at which the cutting unit was located prior to a start of the cutting action by a movement amount selected from a plurality of preset movement amounts, using information about set time stored in advance and information about a remaining power level of the power tool.

6. The power tool according to claim 5 , wherein

the power tool is configured to adjust the movement amount by controlling a movement time in which the cutting unit is caused to move in the direction of the standby position.

Assignments (2)
MERGER Recorded Aug 2, 2019
From: IZUMI PRODUCTS COMPANY
To: MAXELL IZUMI CO., LTD.
Reel/Frame 049945/0940 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 20, 2018
From: OHTA, KOJI; HATTORI, NAOKI; HANEISHI, ISAO
To: IZUMI PRODUCTS COMPANY
Reel/Frame 047556/0242 →
Priority Claims (2)
JP JP2016-103779 · May 24, 2016 · national
JP JP2017-099558 · May 19, 2017 · national
Continuity (1)
Related Publication 20200316697A1 · Oct 8, 2020