Electric working machine

Patent metadata

Field	Value
Publication number	US-11213933-B2
Application number	US-201816157475-A
Country	US
Kind code	B2
Filing date	Oct 11, 2018
Priority date	Oct 17, 2017
Publication date	Jan 4, 2022
Grant date	Jan 4, 2022

Abstract

An electric working machine in one aspect of the present disclosure includes: a motor; a controller for controlling driving of the motor; a first setter; and a second setter. The first setter is operated for setting, as a control method for the motor, which is usable by the controller, one of control methods preliminarily registered. The second setter is operated for setting, as a control method for the motor, which is usable by the controller, at least one of the control methods settable via the first setter.

First claim

What is claimed is:

1. An electric working machine comprising:
a motor;
a memory in which motor control methods for controlling operation of the motor are registered;
a controller configured to control the operation of the motor in accordance with the motor control methods;
a body housing that houses the motor, the memory and the controller;
a first setter movably supported by the body housing and configured to be operated between at least two first setter positions, each position of the at least two first setter positions corresponding to a specific one of the motor control methods;
a second setter movably supported by the body housing and configured to be operated between at least two second setter positions; and
a manipulator configured to be manipulated for allowing a function of the electric working machine to work, wherein:
the electric working machine is configured such that a predetermined operation of two or more of the first setter, the second setter and the manipulator results in an output of a registration signal to the controller; and
the controller is configured to:
each time the first setter is operated to one of the at least two first setter positions, select and set one of the motor control methods in the memory as a first control method;
in response to the second setter being operated, switch the control method for operating the motor in a first rotational direction between only the first control method and an at least one second control method of the motor control methods, the at least one second control method being different from the first control method; and
in response to receipt of the registration signal, register the first control method in the memory as the at least one second control method.

2. The electric working machine according to claim 1 ,
wherein the at least one second control method includes second control methods that are selected from the motor control methods, and
wherein the controller is configured to register the second control methods in the memory.

3. The electric working machine according to claim 1 , further comprising
a first notifier configured to notify information regarding the electric working machine,
wherein the controller is configured to, in response to the motor being controlled based on the at least one second control method, notify that the motor is controlled based on the at least one second control method via the first notifier.

4. The electric working machine according to claim 1 ,
wherein the controller is configured to select and set the at least one second control method from all the motor control methods.

5. The electric working machine according to claim 4 ,
wherein the first setter includes third setters configured to be operated to set the motor control methods which are different from each other as the first control method, and
wherein the controller is configured to select and set the at least one second control method in the memory from all the motor control methods, all the motor control methods being set by one of the third setters.

6. The electric working machine according to claim 1 , further comprising
a grip configured to be gripped by a hand of a user when the user is using the electric working machine,
wherein the second setter is provided at a position so as to be operable by the hand of the user when the hand is gripping the grip.

7. The electric working machine according to claim 6 ,
wherein, in the grip, a driving manipulator is provided, the driving manipulator being configured to be manipulated for commanding driving or stopping of the motor, and
wherein the second setter is provided on an upper side of the driving manipulator in a state where the user grips the grip.

8. An electric working machine comprising:
a motor;
a memory in which motor control methods for controlling operation of the motor are registered;
a controller configured to control the operation of the motor in accordance with the motor control methods;
a body housing that houses the motor, the memory and the controller;
a first setter movably supported by the body housing and configured to be operated between at least two first setter positions;
a second setter movably supported by the body housing and configured to be operated between at least two second setter positions; and
a manipulator configured to be manipulated for allowing a function of the electric working machine to work, wherein:
the electric working machine is configured such that a predetermined operation of two or more of the first setter, the second setter and the manipulator results in an output of a registration signal to the controller; and
the controller is configured to:
each time the first setter is operated to one of the at least two first setter positions, select and set one of the motor control methods as a first control method;
in response to the second setter being operated, switch the control method for operating the motor in a first rotational direction between only the first control method and a second control method of the motor control methods, the second control method being different than the first control method; and
in response to receipt of the registration signal, register the first control method in the memory as the second control method.

9. An electric working machine comprising:
a motor;
a load detector configured to detect a load applied to the motor;
a trigger configured to be manipulated for commanding driving or stopping of the motor;
a memory in which hammering modes and other modes of operation of the electric working machine are registered, the hammering modes including a trigger control method for changing a rotational speed of the motor according to a manipulating amount of the trigger, the other modes including a load control method for changing the rotational speed in response to detection of the load by the load detector;
a controller configured to control operation of the motor;
a body housing that houses the motor, the memory and the controller;
a first setter moving supported by the body housing and configured to be operated between at least two first setter positions;
a second setter movably supported by the body housing and configured to be operated between at least two second setter positions; and
a manipulator configured to be manipulated for allowing a function of the electric working machine to work, wherein:
the electric working machine is configured such that a predetermined operation of two or more of the first setter, the second setter and the manipulator results in an output of a registration signal to the controller; and
the controller is configured to:
each time the first setter is operated to one of the at least two first setter positions, select and set one of the hammering modes or the other modes as a first control method,
in response to the second setter being operated, switch the control method for operating the motor in a first rotational direction between only the first control method and an at least one second control method of the motor control methods, the at least one second control method being different than the first control method; and
in response to receipt of the registration signal, register the first control method in the memory as the at least one second control method; and
the load is from the operation of the electric working machine in one of the other modes.

Assignees

• Makita Corp

Inventors

• Kato Itsuku
• Tomonaga Akira
• Hayashi Katsuna
• Hirabayashi Tokuo
• Kondo Tomoyuki

Classifications

• B25B23/1475

  for impact wrenches or screwdrivers · CPC title

• B25F5/00 Primary

  Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for · CPC title

• B25B21/02 Primary

  with means for imparting impact to screwdriver blade or nut socket · CPC title

• B25D2250/201

  for speed, e.g. drilling or percussion speed · CPC title

• H02P29/20

  for controlling one motor used for different sequential operations · CPC title