Filter support for a handheld power tool

Patent metadata

Field	Value
Publication number	US-10888808-B2
Application number	US-201615775951-A
Country	US
Kind code	B2
Filing date	Oct 4, 2016
Priority date	Dec 17, 2015
Publication date	Jan 12, 2021
Grant date	Jan 12, 2021

Abstract

A filter support for a handheld power tool includes at least one filter support element, a first fastening element, and a second fastening element. The filter support element includes at least one receiving opening configured to receive a filter element. The filter elements of the filter support are preferably associated with air inlet openings of the handheld power tool and are configured to filter dust particles and/or material particles from a cooling air flow. The filter support can be fastened to a handheld power tool via the first and second fastening elements. The first and the second fastening elements of the filter support can be connected to each other. Advantageously, no fastening elements are provided on the handheld power tool.

First claim

The invention claimed is:

1. A filter carrier for a hand-held power tool, comprising:
at least one filter carrier element including at least one receiving opening configured to receive at least one filter element;
at least one first fastening element and at least one second fastening element configured to separably fasten the filter carrier to the hand-held power tool; and
at least one securing element arranged in a region of the at least one receiving opening,
wherein the at least one first fastening element and the at least one second fastening element are arranged at opposite end regions of the filter carrier in an unfastened state, and the at least one first fastening element is configured to be connected to the at least one second fastening element in a fastened state.

2. The filter carrier as claimed in claim 1 , wherein, in the fastened state, the filter carrier is configured to encompass a circumferential surface of the hand-held power tool at least partially in a longitudinal direction, and to encompass the circumferential surface of the hand-held power tool at least partially in a circumferential direction.

3. The filter carrier as claimed in claim 1 , wherein the at least one first fastening element and the at least one second fastening element are arranged substantially along or transversely in relation to a longitudinal direction of the filter carrier.

4. The filter carrier as claimed in claim 1 , further comprising:
a second filter carrier element arranged at an angle of 45° to 90° relative to a longitudinal alignment of the hand-held power tool.

5. The filter carrier as claimed in claim 1 , wherein the at least one filter carrier element includes a low-flexibility material.

6. The filter carrier as claimed in claim 1 , wherein the at least one filter carrier element includes two filter carrier elements configured as filter-carrier half-shells.

7. The filter carrier as claimed in claim 6 , wherein the two filter-carrier half-shells are configured to be separably connected to each other via two of the at least one first fastening element and two of the at least one second fastening element.

8. The filter carrier as claimed in claim 6 , further comprising:
a joint arranged between the two filter-carrier half-shells.

9. The filter carrier as claimed in claim 1 , wherein the at least one first fastening element and the at least one second fastening element are configured as mutually corresponding latching elements.

10. The filter carrier as claimed in claim 1 , wherein the at least one securing element is configured to provide axial and/or rotational securing of the filter carrier on the hand-held power tool.

11. The filter carrier as claimed in claim 1 , wherein the at least one filter carrier element includes a high-flexibility material.

12. The filter carrier as claimed in claim 11 , wherein the at least one first fastening element and the at least one second fastening element are arranged on opposite lateral surfaces of the filter carrier.

13. The filter carrier as claimed in claim 11 , wherein the at least one first fastening element and the at least one second fastening element include mutually corresponding hook-and-loop closure elements.

14. The filter carrier as claimed in claim 11 , wherein:
the at least one first fastening element is a first lateral surface of the at least one filter carrier element, and
the at least one second fastening element is a second lateral surface of the at least one filter carrier element.

15. The filter carrier as claimed in claim 11 , further comprising:
an additional positive-engagement element configured to prevent an axial displacement of the filter carrier along a longitudinal axis of the hand-held power tool and/or twisting of the filter carrier about the longitudinal axis of the hand-held power tool.

16. The filter carrier as claimed in claim 15 , further comprising:
a second filter carrier element,
wherein the at least one additional positive-engagement element is arranged on the second filter carrier element.

17. The filter carrier as claimed in claim 16 , wherein the second filter carrier element is connected to the at least one filter carrier element via a web.

18. A system comprising:
a hand-held power tool; and
a filter carrier including:
at least one filter carrier element including at least one receiving opening configured to receive at least one filter element;
at least one first fastening element and at least one second fastening element configured to separably fasten the filter carrier to the hand-held power tool; and
at least one securing element arranged in a region of the at least one receiving opening,
wherein the at least one first fastening element and the at least one second fastening element are arranged at opposite end regions of the filter carrier in an unfastened state, and the at least one first fastening element is configured to be connected to the at least one second fastening element in a fastened state.

19. The filter carrier as claimed in claim 2 , wherein the filter carrier is configured to completely encompass the circumferential surface of the hand-held power tool in the circumferential direction.

20. The filter carrier as claimed in claim 8 , wherein the joint is a hinge joint or a rotary joint.

Assignees

• Bosch Gmbh Robert

Inventors

• Esenwein Florian
• Stierle Peter
• Lutz Manfred
• Schomisch Thomas

Classifications

• B25F5/008 Primary

  Cooling means · CPC title

• B01D46/0005 Primary

  Mounting of filtering elements within casings, housings or frames (B01D46/2422 takes precedence) · CPC title

• B24B23/028

  Angle tools · CPC title

• B25F5/02

  Construction of casings, bodies or handles {(B25F5/006, B25F5/008 take precedence)} · CPC title