Dust collector

• US 20040060145A1
• Filed: 08/19/2003
• Published: 04/01/2004
• Est. Priority Date: 08/21/2002
• Status: Active Grant

• Current Assignee: Koki Holdings Co., Ltd.
• Original Assignee: Hitachi KOKI Company Limited (Koki Holdings Co., Ltd.)
• Inventors: Hayama, Yoshimasa, Kakegawa, Daisuke, Shinohara, Shigeru, Harada, Hidekazu, Okada, Syuichi
• Granted Patent: US 7,296,323 B2
• Time in Patent Office: Days
• US Class Current: 15/339
• CPC Class Codes: A47L 7/0085 adapted for special purposes not related to 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 9/2894 Details related to signal transmission in suction cleaners
• CPC Class Codes: B23Q 1/0009 Energy-transferring means or control lines for movable machine parts; Control panels or boxes; Control parts control handles for driving or feeding mechanisms B23Q5/54
• CPC Class Codes: B23Q 11/0046 by sucking
• CPC Class Codes: B23Q 11/0057 outside the working area

Abstract

A dust collector includes: a motor functioning as a driving source; a drive unit for driving a motor; a dust collection fan rotated by the motor; a head section for accommodating the dust collection fan; a switch provided on the head section to control the starting of the motor; a tank section located below the head section, for accommodating dust conveyed by the dust collection fan, the tank section having a connecting portion; a duct hose having one end and the other end, the one end attached to the connecting portion, the other end being detachable from a portion of a power tool; a remote-control transmitter for transmitting a signal; and a remote-control receiver for receiving the signal from the remote-control transmitter to control the drive unit to start or stop the motor.

Claims

1. A dust collector comprising:

a motor functioning as a driving source;

a drive unit for driving a motor;

a dust collection fan rotated by the motor;

a head section for accommodating the dust collection fan;

a switch provided on the head section to control the starting of the motor;

a tank section located below the head section, for accommodating dust conveyed by the dust collection fan, the tank section having a connecting portion;

a duct hose having one end and the other end, the one end attached to the connecting portion, the other end being detachable from a portion of a power tool;

a remote-control transmitter for transmitting a signal; and

a remote-control receiver for receiving the signal from the remote-control transmitter to control the drive unit to start or stop the motor.

2. The dust collector according to claim 1, further comprising:

a changeover switch for effecting a changeover between whether the drive unit is turned on or off by the turning on or off of the switch and whether the drive unit is turned on or off based on a reception of the signal from the remote-control transmitter by the remote-control receiver.

3. The dust collector according to claim 1, further comprising:

a catching hook portion having a substantially U-shaped cross section provided at the remote-control transmitter.

4. The dust collector according to claim 1, further comprising:

at least one of an accommodating portion for accommodating the remote-control transmitter and a retaining portion for retaining the remote-control transmitter; and

the at least one of the accommodating portion and the retaining portion is provided in the head section.

5. The dust collector according to claim 1,

wherein the at least one of the accommodating portion and the retaining portion has a projection/depression-shaped portion;

the remote-control transmitter has a counterpart projection/depression-shaped portion to be fitted to the projection/depression-shaped portion; and

the counterpart projection/depression-shaped portion is formed on an exterior portion of the at least one of the accommodating portion and the retaining portion.

6. The dust collector according to claim 1, further comprising:

a receiving antenna connected to the remote-control receiver;

wherein the receiving antenna connected to the remote-control receiver is disposed in an area where the motor has not an influence.

7. The dust collector according to claim 6, wherein the area where the motor has not an influence is located above the motor inside the head section.

8. The dust collector according to claim 6, wherein the area where the motor has not an influence is located below the motor inside the head section.

9. The dust collector according to claim 6, wherein the area where the motor has not an influence is located in the tank section.

10. The dust collector according to claim 6, wherein connection between the receiving antenna and the remote-control receiver is effected by a coaxial cable disposed at a predetermined distance from a periphery of the motor.