Dust collector

• US 7,296,323 B2
• Filed: 08/19/2003
• Issued: 11/20/2007
• 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
• Primary Examiner(s): Snider; Theresa T.
• Application Number:
  US10/642,670
• Publication Number:
  US 20040060145A1
• Time in Patent Office: 1,554 Days
• Field of Search: 153/39, 153/19, 153/276, 831/00, 340/825.69, 340/825.72
• 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 combination of a dust collector and a hand-held power tool comprising a power cord, said dust collector comprising:

a motor functioning as a driving source;

a drive unit for driving the 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 drive unit to start and stop the motor;

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

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

a power cord;

a remote-control transmitter for transmitting a signal;

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

a receiving antenna connected to the remote-control receiver, the receiving antenna being disposed in an area where the motor has no influence; and

a changeover switch for selecting between the switch and the remote-control receiver to control the drive unit.

2. The combination according to claim 1, wherein said changeover switch controls the drive unit to one of start and stop the motor.

3. The combination according to claim 1, further comprising:

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

4. The combination 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 combination according to claim 4, wherein at least one of the accommodating portion and the retaining portion comprises a projection/depression-shaped portion;

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

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

6. The combination according to claim 1, wherein the area where the motor has no influence is located above the motor inside the head section.

7. The combination according to claim 1, wherein the area where the motor has no influence is located below the motor inside the head section.

8. The combination according to claim 1, wherein the area where the motor has no influence is located in the tank section.

9. The combination according to claim 1, 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.

10. The combination according to claim 1, wherein the changeover switch is provided on the head section.

11. A dust collection system comprising:

a remote-control transmitter for transmitting a signal;

a debris collector comprising;

a motor rotating a debris collection fan;

a tank section accommodating debris conveyed by the debris collection fan, the tank section including a connecting portion;

a duct hose attached at a first end to the connecting portion, the second end being detachable from an attaching portion of a power tool;

a drive unit for driving the motor;

a switch to control the drive unit to start or stop the motor;

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

a receiving antenna connected to the remote-control receiver, the receiving antenna being disposed in an area where the motor has no influence;

a power cord; and

a changeover switch for selecting between the switch and the remote-control receiver to control the drive unit.

12. The dust collection system according to claim 11, wherein said changeover switch controls the drive unit to start or stop the motor.

13. A dust collection system comprising:

a remote-control transmitter for transmitting a signal; and

a debris collector that functions to accumulate debris from a hand-held power tool, the debris collector comprising;

a switch to one of start and stop the function of accumulating debris;

a remote-control receiver for receiving the signal from the remote-control transmitter to one of start and stop the function of accumulating debris; and

a changeover switch for selecting between one of the switch and the remote-control receiver to start and stop the function of accumulating debris.