DUST COLLECTOR

• US 20160151846A1
• Filed: 08/01/2014
• Published: 06/02/2016
• Est. Priority Date: 08/02/2013
• Status: Active Grant

• Current Assignee: Makita Corporation
• Original Assignee: Makita Corporation
• Inventors: Suzuki, Hitoshi
• Granted Patent: US 9,962,781 B2
• Time in Patent Office: Days
• CPC Class Codes: A47L 2201/06 Control of the cleaning action for autonomous devices; Automatic detection of the surface condition before, during or after cleaning
• CPC Class Codes: A47L 7/0095 Suction cleaners or attachments adapted to collect dust or waste from power tools
• CPC Class Codes: A47L 9/2842 Suction motors or blowers
• CPC Class Codes: A47L 9/2868 Arrangements for power supply of vacuum cleaners or the accessories thereof
• CPC Class Codes: A47L 9/2894 Details related to signal transmission in suction cleaners
• CPC Class Codes: 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
• CPC Class Codes: B23D 59/006 for removing or collecting chips
• CPC Class Codes: B23Q 11/0046 by sucking
• CPC Class Codes: B23Q 11/0071 dust collectors for hand tools
• CPC Class Codes: B24B 23/02 with rotating grinding tools; Accessories therefor
• CPC Class Codes: B24B 23/028 Angle tools
• CPC Class Codes: 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
• CPC Class Codes: B24B 55/10 specially designed for portable grinding machines, e.g. hand-guided
• CPC Class Codes: B25F 5/00 Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
• CPC Class Codes: G08C 17/02 using a radio link
• CPC Class Codes: H01Q 1/12 Supports; Mounting means
• CPC Class Codes: H05K 3/36 Assembling printed circuits with other printed circuits H05K7/142 takes precedence

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

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; and

an interlock operation control portion configured to make the dust collection portion perform an interlock operation with the electric working machine when the communication portion receives an interlock command transmitted from the electric working machine,

wherein the interlock operation control portion comprises 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.

2. The dust collector according to claim 1,

wherein the interlock command transmitted from the electric working machine includes an interlock operation request signal requesting the interlock operation and an identification signal indicating the identification information.

3. The dust collector according to claim 2,

wherein the interlock operation control portion is further configured such that when the identification information obtained from the identification signal received by the communication portion coincides with the identification information stored in the storage portion and the interlock operation request signal is received by the communication portion, the interlock operation control portion makes the dust collection portion perform the interlock operation.

4. The dust collector according to claim 1,

wherein the interlock operation control portion is further configured such that,

while the communication portion receives the interlock command periodically and repeatedly transmitted by the electric working machine during operation of the electric working machine, the interlock operation control portion makes the dust collection portion perform the interlock operation, and

when the communication portion has not received the interlock command for a specified period of time or more, the interlock operation control portion stops the interlock operation of the dust collection portion.

5. The dust collector according to claim 4,

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.

6. The dust collector according to claim 1, further comprising a registration operation portion configured to input a command for additionally registering the identification information specific to the electric working machine with which the dust collection portion is to be made to perform the interlock operation,

wherein the interlock operation control portion is further configured to additionally register the identification information in the storage portion in accordance with the command from the registration operation portion.

7. The dust collector according to claim 1,

wherein the interlock operation control portion is further configured such that, when receiving the command for additionally register the identification information from the registration operation portion, the interlock operation control portion transmits an identification information transmission request to a nearby electric working machine via the communication portion, and after the transmission, additionally registers the identification information received by the communication portion in the storage portion.

8. The dust collector according to claim 7,

wherein a receivable distance at which the electric working machine can receive a signal transmitted from the communication portion is shorter than a receivable distance at which the communication portion can receive a signal transmitted from the electric working machine.

9. The dust collector according to claim 7,

wherein the interlock operation control portion is further configured such that, after the interlock operation control portion transmits the identification information transmission request to the nearby electric working machine via the communication portion, when the communication portion receives a plurality of pieces of identification information, the interlock operation control portion suspends the additional registration of the identification information in the storage portion and notifies the suspension via a notification portion.

10. The dust collector according to claim 6,

wherein the interlock operation control portion is further configured such that, when the identification information is additionally registered in the storage portion, the interlock operation control portion notifies the additional registration via the notification portion.

11. The dust collector according to claim 1,

wherein the interlock operation control portion is further configured such that, when the communication portion receives a registration request of the identification information transmitted from the electric working machine, the interlock operation control portion additionally registers the identification information in the storage portion.

12. The dust collector according to claim 11,

wherein the interlock operation control portion is further configured such that, after the communication portion receives the registration request of the identification information, the interlock operation control portion notifies, via the notification portion whether the identification information is additionally registered in the storage portion.

13. The dust collector according to claim 1, further comprising a deletion operation portion that inputs a command for deleting the identification information stored in the storage portion,

wherein the interlock operation control portion is further configured to delete the identification information stored in the storage portion in accordance with the command from the deletion operation portion.

14. The dust collector according to claim 1,

wherein the interlock operation control portion is further configured such that,

when a command for deleting the identification information is inputted from the deletion operation portion while the interlock operation control portion makes the dust collection portion perform the interlock operation, the interlock operation control portion deletes, from the storage portion, the identification information used to make the dust collection portion perform the interlock operation.

15. The dust collector according to claim 1, comprising:

a dust collector main body that comprises at least the dust collection portion and that is configured to operate by receiving a power supply from an external alternating current power source; and

a communication unit that comprises at least the communication portion and that is attached to the dust collector main body and configured to receive the interlock command wirelessly transmitted from the electric working machine to output an operation command to the dust collector main body,

wherein the dust collector main body comprises an isolation device configured to electrically isolate the alternating current power source from the communication unit.

16. The dust collector according to claim 15,

wherein the isolation device comprises an isolation transformer.

17. The dust collector according to a claim 15,

wherein the isolation device comprises a contactless circuit configured to contactlessly transmit a signal between an operation portion and the communication unit, the operation portion being configured to operate by receiving a power supply from the alternating current power source.

18. The dust collector according to claim 15,

wherein the communication unit comprises:

an antenna for wireless communication;

a signal input/output portion configured to input and output a signal including the operation command to and from the dust collector main body; and

a communication control portion configured to control a signal inputted and outputted via the antenna and the signal input/output portion, and

wherein the antenna is disposed on a side opposite to the signal input/output portion across the communication control portion.

19. The dust collector according to claim 15,

wherein the dust collector main body comprises:

a power supply path configured to supply an electric power to the communication unit; and

a detection circuit configured to detect, based on an electric current flowing to the power supply path, that the communication unit is attached.

20. The dust collector according to claim 15,

wherein the communication unit comprises:

a case;

an antenna for wireless communication;

a signal input/output portion configured to input and output a signal including the operation command to and from the dust collector main body; and

a communication control portion configured to control a signal inputted and outputted via the antenna and the signal input/output portion,

wherein at least the communication control portion is covered by a waterproof resin member and housed inside the case.