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Dust collector

  • US 10,307,842 B2
  • Filed: 04/13/2018
  • Issued: 06/04/2019
  • Est. Priority Date: 08/02/2013
  • Status: Active Grant
First Claim
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1. A dust collector comprising:

  • a dust collection portion configured to suck dust through a dust collection hose;

    a communication portion configured to wirelessly communicate with an electric working machine;

    a power plug configured to receive an alternating-current power from an alternating-current power source;

    a changeover switch directly electrically coupled to the power plug, wherein the changeover switch is configured to be changed into a first state, a second state, and a third state, wherein the changeover switch in the first state makes the dust collection portion operate interlocking with an operation of the electric working machine, the changeover switch in the second state inhibits the dust collection portion from an interlock operation with the operation of the electric working machine, and the changeover switch in the third state stops an operation of the dust collection portion; and

    an interlock operation control portion configured to make the dust collection portion perform the interlock operation with the electric working machine in response to receipt of an interlock command by the communication portion with the changeover switch being in the first state, wherein the interlock command is periodically transmitted from the electric working machine,wherein the interlock operation control portion includes a storage portion in which identification information is stored, the identification information being specific to the electric working machine with which the dust collection portion is to be made to perform the interlock operation,wherein the interlock command includes an interlock operation request signal and an identification signal, the interlock operation request signal requesting the interlock operation, and the identification signal indicating the identification information, andwherein the interlock operation control portion is further configured such that,the interlock operation control portion makes the dust collection portion perform the interlock operation in response to receipt of the interlock command by the communication portion during operation of the electric working machine, andthe interlock operation control portion stops the interlock operation of the dust collection portion in response to no receipt of the interlock command by the communication portion for a specified period of time or more.

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