Sanding machine, operating method thereof and working baseplate disassembly-assembly method

Patent metadata

Field	Value
Publication number	US-11529711-B2
Application number	US-201816221847-A
Country	US
Kind code	B2
Filing date	Dec 17, 2018
Priority date	Jun 28, 2016
Publication date	Dec 20, 2022
Grant date	Dec 20, 2022

Abstract

The present invention relates to a sander, and a method for disassembling or installing a working head of the sander. The sander includes: a main body, including a housing, a motor disposed in the housing, a switch mechanism for controlling the motor includes a switch, and a drive component driven by the motor to rotate; and a working head adapted to the drive component. The main body further includes an interlocking mechanism, the interlocking mechanism includes an operation member movably disposed relative to the housing, the operation member is operably shifted between a first state and a second state, when the operation member is in the first state, the interlocking mechanism allows the switch to be triggered, when the switch is in a triggered state, the operation member is prevented from being shifted from the first state to the second state; and when the operation member is in the second state, the interlocking mechanism prevents the switch from being triggered. The sanding machine of the present invention has high security and can be operated conveniently.

First claim

What is claimed is:

1. A sander comprising:
a main body comprising a housing;
a motor being disposed in the housing;
a switch mechanism for starting or stopping the motor, and the switch mechanism comprise a switch;
and a drive component being driven by the motor to rotate;
a working head adapted to the drive component;
wherein the main body further comprises an interlocking mechanism, the interlocking mechanism comprises an operation member movably disposed relative to the housing, the operation member is operably shifted between a first state and a second state, when the operation member is in the first state, the interlocking mechanism allows the switch to be triggered, when the switch is in a triggered state, the operation member is prevented from being shifted from the first state to the second state; and when the operation member is in the second state, the interlocking mechanism prevents the switch from being triggered;
wherein the switch mechanism further comprises a trigger member, the interlocking mechanism comprises a first interlocking member selectively engaged to or separated from the operation member; when the operation member is in the first state, the first interlocking member is engaged to the operation member and allows the trigger member to trigger the switch, and when the switch is in a triggered state in which the motor is started, the operation member is prevented from being separated from the first interlocking member; and when the operation member is in the second state, the first interlocking member is separated from the operation member, and the first interlocking member prevents the trigger member from triggering the switch; and
wherein the interlocking mechanism further comprising an abutting member capable of abutting against or getting separated from the first interlocking member, when the operation member is in the first state, the abutting member is separated from the first interlocking member and the trigger member can be moved to trigger the switch; and when the operation member is in the second state, the abutting member abuts against the first interlocking member to prevent the trigger member from triggering the switch.

2. The sander according to claim 1 , wherein the abutting member and the trigger member are integrally formed.

3. The sander according to claim 1 , wherein the operation member is foldable relative to the housing.

4. The sander according to claim 3 , wherein the operation member is configured to be a cam wrench, the cam wrench comprises a handle portion and a cam portion, the cam portion is connected to the housing, and the handle portion comprises a free end.

5. The sander according to claim 1 , wherein the housing comprises a head portion for accommodating the motor and a holding portion provided with a handle, the operation member is connected to the head portion, and the trigger member is disposed at the holding portion, the trigger member is slidably disposed along an extending direction of the holding portion, when the first interlocking member is engaged to the operation member, the first interlocking member allows the trigger member to slide; and when the first interlocking member is separated from the operation member, the first interlocking member prevents the trigger member from sliding.

6. The sander according to claim 1 , wherein the working head comprises at least two baseplates having different shapes and one of the baseplates is selectively to be separated from or engaged to the drive component.

Assignees

• Positec Power Tools Suzhou Co Ltd

Inventors

• Zhong Hongfeng
• Sun Yimin
• Zhang Shisong

Classifications

• B24B55/00

  Safety devices for grinding or polishing machines; Accessories fitted to grinding or polishing machines for keeping tools or parts of the machine in good working condition (of general applicability for machine tools B23Q11/00; in general F16P) · CPC title

• F16P3/00

  Safety devices acting in conjunction with the control or operation of a machine; Control arrangements requiring the simultaneous use of two or more parts of the body (F16P5/00 takes precedence) · CPC title

• B24B23/02

  with rotating grinding tools; Accessories therefor · CPC title

• B25F5/00

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

• B24B23/022 Primary

  Spindle-locking devices, e.g. for mounting or removing the tool · CPC title