US 7,562,456 B2
System comprised of a chip catcher and a safety guard for a power tool
Heiko Roehm, Stuttgart (Germany); and Steffen Weber, Filderstadt (Germany)
Assigned to Robert Bosch GmbH, Stuttgart (Germany)
Appl. No. 10/556,985
PCT Filed Dec. 14, 2004, PCT No. PCT/EP2004/053446
§ 371(c)(1), (2), (4) Date Nov. 16, 2005,
PCT Pub. No. WO2005/070617, PCT Pub. Date Aug. 04, 2005.
Claims priority of application No. 10 2004 004 003 (DE), filed on Jan. 27, 2004.
Prior Publication US 2007/0039189 A1, Feb. 22, 2007
Int. Cl. B27B 9/00 (2006.01); B27G 3/00 (2006.01); B23Q 11/00 (2006.01)
U.S. Cl. 30—390  [30/124] 14 Claims
OG exemplary drawing
 
1. A system comprised of:
a power tool (26) that generates chips (56);
a safety guard (10) for the power tool (26);
a chip ejector (16) for the power tool (26); and
a chip catcher for the power tool (26), wherein the chip catcher has two opposing ends, an inlet region (32) at one of the opposing ends for admitting a flow of air containing a chip/air mixture (52) and for detachably connecting to the chip ejector (16) and has an encompassing housing (48) that is provided for attachment to the safety guard (10),
wherein the housing (48) contains an air outlet (36) spatially separate from a chip-collecting region (58) of the chip catcher for chips (56), wherein the safety guard (10) is equipped with the chip ejector (16), wherein the safety guard (10) has two sidewalls which are spaced from each other and are arranged parallel to a rotation plane of a tool member (14) of the power tool (26) and has a cover contour (28) which covers the tool member (14) in a radial direction of the tool member (14), wherein the cover contour (28) connects the two sidewalls with each other and is provided as a circumference (40) of the safety guard (10); and the chips (56) are transported in a rotation direction (20) of the tool member (14), wherein the chip ejector (16) is situated on the circumference (40) of the safety guard (10) and has an opening (18) through which the chips (56) exit the safety guard (10), and wherein the chip catcher is situated on the circumference (40) of the safety guard (10), wherein the chip catcher (30) has a flap (44) at the other of the opposing ends for removing chips (56) and wherein when the power tool (26) is operated and the flap (44) is opened, chips are ejected at low speed next to the power tool (26).