Dust collection cover for cutting devices

Patent metadata

Field	Value
Publication number	US-10173345-B2
Application number	US-201615176479-A
Country	US
Kind code	B2
Filing date	Jun 8, 2016
Priority date	Jun 18, 2015
Publication date	Jan 8, 2019
Grant date	Jan 8, 2019

Abstract

A separation lock member is provided in a main body cover. When a fixing cover is rotated with respect to the main body cover at a predetermined opening/closing angle (opening angle θ 1 ) and then an unlock operation of the separation lock member is performed, a rotation support shaft can be separated from a support groove 23 a , such that the main body cover can be separated from the fixing cover.

First claim

What is claimed is:

1. A cover for a cutting device, the cover being configured to cover around a rotary cutting blade of the cutting device and to collect dust, the cover comprising:
a first cover configured to be attached to the cutting device;
a second cover having a base with which a cutting surface of a material to be cut is brought into contact; and
a lock member provided in the first cover, wherein:
the first cover is configured to be coupled to the second cover such that the first cover is relatively opened and closed with respect to the second cover around a rotation support shaft,
the second cover is disposed directly on an outside of the cutting blade, the second cover being configured to cover an outer periphery of the cutting blade,
the first cover is disposed on an outside of the second cover in an overlapping manner in a direction extending along a plane of the blade,
a support groove through which the rotation support shaft is inserted is provided on the first cover,
by rotating the lock member to unlock the lock member such that an end part of the support groove is opened and the rotation support shaft is capable of being released from the support groove, the first cover and the second cover are configured to be separable from each other, and
by rotating the lock member to lock the lock member, the first cover and the second cover are supported so as not to be separable from each other by preventing the rotation support shaft from releasing from the support groove with the support groove being covered by the lock member.

2. The cover according to claim 1 , wherein,
an opening stopper is provided in at least either one of the first cover and the second cover such that a rotation of the first cover in an opening direction is restricted with respect to the second cover.

3. The cover according to claim 1 , further comprising an additional lock member,
wherein the lock member and the additional lock member are respectively provided on a left side and a right side of the first cover, the lock member and the additional lock member being coupled together.

4. The cover according to claim 3 , wherein,
an indicator that indicates a position of the rotary cutting blade is adjustably positioned in a connection portion that connects the left side and right side lock members in a thickness direction of the rotary cutting blade.

5. The cover according to claim 1 , wherein,
the lock member is spring biased in a lock side where the first cover and the second cover are supported so as not to be extendable relative to each other.

6. A cutting device having the cover according to claim 1 .

7. A cover for a cutting device, the cover being configured to cover around a rotary cutting blade of the cutting device and to collect dust, the cover comprising:
a first cover configured to be attached to the cutting device;
a second cover having a base with which a cutting surface of a material to be cut is brought into contact; and
a lock member provided in the first cover, wherein:
the first cover is configured to be coupled to the second cover such that the first cover is relatively opened and closed with respect to the second cover around a rotation support shaft,
the second cover is disposed directly on an outside of the cutting blade, the second cover being configured to cover an outer periphery of the cutting blade,
the first cover is disposed on an outside of the second cover in an overlapping manner in a direction extending along a plane of the blade,
an opening stopper is provided in the second cover such that a rotation of the first cover in an opening direction is restricted with respect to the second cover, and a support groove member through which the rotation support shaft is inserted is provided on the first cover,
the first cover and the second cover are extendable from each other by releasing the opening stopper such that the second cover is rotated with respect to the first cover to a larger opening angle than in a case where the opening stopper is not released, and
by rotating the lock member to unlock the lock member such that an end part of the support groove is opened and the rotation support shaft is capable of being released from the support groove, the first cover and the second cover are configured to be separable from each other, and
by rotating the lock member to lock the lock member, the first cover and the second cover are supported so as not be separable from each other by preventing the rotation support shaft from releasing from the support groove with the support groove being covered by the lock member.

8. The cover according to claim 7 , further comprising an additional lock member,
wherein the lock member and the additional lock member are respectively provided on a left side and a right side of the first cover, the lock member and the additional lock member being coupled together.

9. The cover according to claim 8 , wherein,
an indicator that indicates a position of the rotary cutting blade is adjustably positioned in a connection portion that connects the left side and right side lock members in a thickness direction of the rotary cutting blade.

10. The cover according to claim 7 , wherein,
the lock member is spring biased in a lock side where the first cover and the second cover are supported so as not to be extendable relative to each other.

11. A cutting device having the cover according to claim 7 .

Assignees

• Makita Corp

Inventors

• Numata Fumitoshi
• Goto Akihiro

Classifications

• B28D1/045

  Sawing grooves in walls; sawing stones from rocks; sawing machines movable on the stones to be cut · CPC title

• B28D7/02 Primary

  for removing or laying dust, e.g. by spraying liquids; for cooling work · CPC title

• B23D45/16

  Hand-held sawing devices with circular saw blades · CPC title

• B23D59/006

  for removing or collecting chips · CPC title