Dust collecting attachment

Patent metadata

Field	Value
Publication number	US-8967922-B2
Application number	US-82995610-A
Country	US
Kind code	B2
Filing date	Jul 2, 2010
Priority date	Jul 10, 2009
Publication date	Mar 3, 2015
Grant date	Mar 3, 2015

Abstract

A technique for allowing a user to operate an operating member disposed in a front end region of a power tool in the state in which a dust collecting attachment designed to be attached to the front end region of the power tool is left attached to the power tool. The dust collecting attachment is used on a power tool having an operating member for removal and/or bit angle setting of a tool bit coupled to a front end region of a tool body. The dust collecting attachment has a dust collecting member which can be attached to the front end region of the tool body. The dust collecting member has an opening formed in a region which faces the operating member in the state in which the dust collecting member is attached to the tool body, and the operating member can be operated by user's finger through the opening.

First claim

What we claim is:

1. A dust collecting attachment for a power tool having an operating member that is slidable in a longitudinal direction of a front end region of a tool body of the power tool, the operating member being for removal and/or bit angle adjustment of a tool bit coupled to the front end region of the tool body, and the dust collecting attachment comprising:
a dust collecting member attachable to the front end region of the tool body to cover at least a part of the operating member in such a manner as to surround the front end region around a longitudinal axis of the front end region,
wherein the dust collecting member has two openings formed on opposite sides of an axial center line of the dust collecting member and in a region of the dust collecting member that faces the operating member in a state in which the dust collecting member is attached to the tool body and the operating member is operable by a user's fingers through the openings,
wherein the dust collecting member includes a cup body and a cup mounting portion connected to the cup body, the cup mounting portion being connected to the cup body so as to define (i) an opening and (ii) an annular dust storage disposed outside of the cup body and in front of a sealing portion, and
wherein a hose connecting port is formed on the cup mounting portion so as to be connected to the dust storage disposed in front of the sealing portion.

2. The dust collecting attachment as defined in claim 1 , wherein
a connecting hose configured to connect the the dust collecting member to a dust collector can be connected to the hose connecting port.

3. The dust collecting attachment as defined in claim 2 , wherein
the dust collecting member has a stopper configured to close the hose connecting port when the connecting hose is not connected to the hose connecting port.

4. The dust collecting attachment as defined in claim 2 , wherein
the dust collecting member can be attached to the power tool at more than one position in the circumferential direction, and in the attached state, the dust collecting member is prevented from moving in the circumferential direction.

5. The dust collecting attachment as defined in claim 1 , wherein the hose connecting port is formed in a bottom of the dust storage.

6. The dust collecting attachment as defined in claim 1 , wherein the dust collecting member is mountable by fitting onto a barrel in the front end region of the body.

7. The dust collecting attachment as defined in claim 6 , wherein:
a plurality of engagement protrusions are formed in a circumferential direction on one of an inner surface of the dust collecting member and an outer surface of the barrel,
a plurality of engagement recesses are formed in the circumferential direction on the other of the inner surface of the dust collecting member and the outer surface of the barrel, and
a mounting position of the dust collecting member can be changed with respect to the barrel by selectively changing a position of engagement between the engagement protrusions and the engagement recesses in the circumferential direction.

8. The dust collecting attachment as defined in claim 1 , wherein
when attached to the tool body, the dust collecting member is opposed to an auxiliary handle mounted to the body with a predetermined spacing in the longitudinal direction of the body, and the dust collecting member is supported by a plurality of poles that extend between the dust collecting member and the auxiliary handle.

9. A power tool provided with the dust collecting attachment as defined in claim 1 .

10. The dust collecting attachment as defined in claim 1 , wherein the sealing portion is rearward of a bellows region of the cup body.

11. The dust collecting attachment as defined in claim 1 , wherein the dust storage is rearward of a bellows region of the cup body.

12. The dust collecting attachment as defined in claim 1 , wherein each of the openings is formed by two opposite and parallel sides that extend in the axial direction of the dust collecting member, one of the two parallel sides being longer than the other.

13. A dust collecting attachment for a power tool having an operating member that is slidable in a longitudinal direction of a front end region of a tool body of the power tool, the operating member being for removal and/or bit angle adjustment of a tool bit coupled to the front end region of the tool body, the dust collecting attachment comprising:
a dust collecting member attachable to the front end region of the tool body to cover at least a part of the operating member in such a manner as to surround the front end region around a longitudinal axis of the front end region,
wherein the dust collecting member has an opening formed in a region of the dust collecting member that faces the operating member in a state in which the dust collecting member is attached to the tool body and the operating member is operable by a user's finger through the opening,
wherein the dust collecting member includes a cup body and a cup mounting portion connected to the cup body, the cup mounting portion being connected to the cup body so as to define (i) an opening and (ii) an annular dust storage disposed outside of the cup body and in front of a sealing portion, and
wherein a hose connecting port is formed on the cup mounting portion so as to be connected to the dust storage disposed in front of the sealing portion.

Assignees

• Yoshikane Kiyonobu
• Machida Yoshitaka
• Furusawa Masanori
• Kasuya Yoshihiro
• Makita Corp

Inventors

• Yoshikane Kiyonobu
• Machida Yoshitaka
• Furusawa Masanori
• Kasuya Yoshihiro

Classifications

• Y10T408/50

  with product handling or receiving means · CPC title

• B23Q11/0046 Primary

  by sucking · CPC title