# US 10,307,842 B2 · Dust collector > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,307,842 B2 - Document ID: US10307842B2 - Status: Granted - Kind: B2 - Application number: 15/952,660 - Filed: 2018-04-13 - Published: 2018-08-16 - Granted: 2019-06-04 - Earliest claimed: 2013-08-02 - Assignees: Makita Corporation - Applicants: Makita Corporation - Inventors: Hitoshi Suzuki - Web page: https://patentgrep.com/patent/US10307842B2 ## CPC - B23D 59/0064: {by suction} - A47L 7/0095: {Suction cleaners or attachments adapted to collect dust or waste from power tools} - A47L 9/2842: {Suction motors or blowers} - A47L 9/2868: {Arrangements for power supply of vacuum cleaners or the accessories thereof} - A47L 9/2894: {Details related to signal transmission in suction cleaners} - B23D 59/001: {Measuring or control devices, e.g. for automatic control of work feed pressure on band saw blade (measuring in general G01; controlling in general G05)} - B23Q 11/0046: {by sucking} - B23Q 11/0071: {dust collectors for hand tools} - B24B 23/02: with rotating grinding tools; Accessories therefor - B24B 23/028: {Angle tools} - B24B 55/00: 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) - B24B 55/10: specially designed for portable grinding machines, e.g. hand-guided - B25F 5/00: Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for - G08C 17/02: using a radio link - H01Q 1/12: Supports; Mounting means - H05K 3/36: Assembling printed circuits with other printed circuits {(H05K7/142 takes precedence)} - A47L 2201/06: Control of the cleaning action for autonomous devices; Automatic detection of the surface condition before, during or after cleaning - B23D: PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR (making toothed gears or the like B23F; cutting metal by applying heat locally B23K; arrangements for copying or controlling B23Q) - A47L: DOMESTIC WASHING OR CLEANING (brushes A46B; cleaning quantities of bottles or of other hollow articles of one kind B08B9/00; laundry D06F); SUCTION CLEANERS IN GENERAL (cleaning in general B08) - B23Q: DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING (tools of the kind used in lathes or boring machines B23B27/00); MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT - B24B: MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING (grinding of gear teeth B23F, of screw-threads B23G1/36; by electro-erosion B23H; abrasive or related blasting B24C; tools for grinding, buffing or sharpening B24D; polishing compositions C09G1/00; abrasives C09K3/14; electrolytic etching or polishing C25F3/00; grinding arrangements for use on assembled railway tracks E01B31/17); DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS - B25F: COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR {(machines or arrangements of machines for performing specified combinations of different metal-working operations not covered by a single other subclass B23P23/00 and subgroups)} - G08C: TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS (fluid pressure transmitting systems F15B; mechanical means for transferring the output of a sensing member into a different variable G01D5/00; mechanical control systems G05G) - H01Q: ANTENNAS, i.e. RADIO AERIALS (radiators or antennas for microwave heating H05B6/72) - H05K: PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS ## Abstract A dust collector in one aspect of the present invention comprises a dust collection portion, a communication portion, and an interlock operation control portion. When the communication portion receives an interlock command transmitted from an electric working machine, the interlock operation control portion makes the dust collection portion operate interlocking with the electric working machine. The interlock operation control portion includes a storage portion, in which identification information specific to the electric working machine with which the dust collection portion is to be made to perform the interlock operation is stored. ## Claims ### Claim 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, and wherein 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, and the 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. ### Claim 2 (depends on 1) The dust collector according to claim 1, wherein the specified period of time is set to be longer than a transmission cycle in which the electric working machine periodically transmits the interlock command. ### Claim 3 (depends on 1) The dust collector according to claim 1, wherein: the dust collection portion includes: a motor; and a motor driving circuit configured to drive the motor; and the dust collector includes a transmission path extending from the power plug through the changeover switch to the motor driving circuit. ### Claim 4 (depends on 1) The dust collector according to claim 1, further comprising a signal isolation circuit coupled to the changeover switch and the interlock operation control portion, wherein a state of the changeover switch is inputted to the interlock operation control portion via the signal isolation circuit. ### Claim 5 (depends on 4) The dust collector according to claim 4, wherein the signal isolation circuit includes a photocoupler. ### Claim 6 (depends on 1) The dust collector according to claim 1, further comprising a control power source configured to receive the alternating-current power from the alternating-current power source, the control power source being configured to generate a direct-current voltage, wherein the changeover switch is coupled to the control power source. ### Claim 7 (depends on 6) The dust collector according to claim 6, wherein the control power source is electrically coupled to the power plug via the changeover switch in the first state or the second state. ### Claim 8 (depends on 7) The dust collector according to claim 7, wherein the control power source is supplied power via the power plug and the changeover switch independent of the power supplied to the dust collection portion. ### Claim 9 (depends on 6) The dust collector according to claim 6, wherein the control power source includes an isolation transformer. ### Claim 10 (depends on 1) The dust collector according to claim 1, further comprising a power outlet configured to receive the alternating-current power from the alternating-current power source, the power outlet being configured to supply an alternating-current power to an external device, wherein the changeover switch is coupled to the power outlet. ### Claim 11 (depends on 10) The dust collector according to claim 10, wherein the power outlet is electrically coupled to the power plug via the changeover switch in the first state or the second state.