Hand-Held Power Tool, Edge Guide and Tool System

Patent metadata

Field	Value
Publication number	US-2021394325-A1
Application number	US-201917293298-A
Country	US
Kind code	A1
Filing date	Nov 12, 2019
Priority date	Nov 19, 2018
Publication date	Dec 23, 2021
Grant date	—

Abstract

A hand-held power tool, in particular a router, includes a machine housing and a support device for guiding the hand-held power tool on a workpiece. The support device has a carrier element, in which the machine housing is at least partially received and fastened. A foot plate which allows an insert tool, in particular a milling tool, to pass through and which is designed to bear against a workpiece is fastened to an end flange of the carrier element facing away from the machine housing. An edge guide for guiding the hand-held power tool along an edge of the workpiece is fastenable to the end flange of the carrier element. A groove is formed in the end flange. A fastening portion of a holding arm of the edge guide can be received interlockingly in the groove and can be fastened by means of at least one fastening element.

First claim

1 . A hand-held power tool, comprising:
a machine housing; a supporting device for guiding the hand-held power tool on a workpiece, the supporting device including a carrier element, in which the machine housing is at least in part accommodated and fastened, the carrier element including an end flange facing away from the machine housing, the end flange defining a groove; and a base plate fastened to the end flange, the base plate configured to bear against a workpiece and to enable an insert tool to pass through the base plate, wherein the end flange of the carrier element is configured to be fastened to an edge guide that guides the hand-held power tool along an edge of the workpiece, the groove in the end flange configured to at least in part accommodate a fastening portion of a holding arm of the edge guide in a positive-locking manner and to fasten with at least one fastening element.

2 . The hand-held power tool as claimed in claim 1 , wherein each of the at least one fastening elements is configured as a threaded screw configured to temporarily fasten the edge guide to the end flange of the carrier element by being screwed into an associated threaded bore in a groove bottom of the groove.

3 . The hand-held power tool as claimed in claim 2 , wherein a depth of the groove is dimensioned larger than a material thickness of the fastening portion of the holding arm.

4 . The hand-held power tool as claimed in claim 2 , wherein the fastening portion of the holding arm defines at least one through bore, each of which is configured to receive a respective one of the threaded screws, the at least one through bore merging into a longitudinal slot which is open toward a holding arm end.

5 . The hand-held power tool as claimed in claim 4 , wherein:
the at least one longitudinal slot has a V-shaped chamfer and the at least one through bore has a countersink, the chamfer and countersink are arranged in a region of a bottom side of the fastening portion of the holding arm that faces away from the machine housing, and the countersink is deeper than the chamfer.

6 . The hand-held power tool as claimed in claim 2 , wherein:
the base plate defines at least one through bore configured for a tool to pass through for securing the at least one fastening screw, a diameter of the at least one through bore is smaller than a head diameter of the at least one threaded screw, and each of the at least one through bores of the base plate is configured centrically and above the associated threaded bore of the groove bottom.

7 . The hand-held power tool as claimed in claim 5 , wherein each threaded screw has a countersunk head that substantially corresponds to the chamfer of the longitudinal slot and to the countersink of the at least one through bore.

8 . The hand-held power tool as claimed in claim 2 , wherein the at least one threaded bore has an axial length configured such that each threaded screw is constantly in threaded engagement with the associated threaded bore.

9 . The hand-held power tool as claimed in claim 7 , wherein the base plate is annular and is formed with a transparent plastic.

10 . The hand-held power tool as claimed in claim 9 , wherein the countersunk head of each threaded screw, has a drive geometry configured to be secured by a tool, the drive geometry configured as a cross slot, a hexalobular internal drive, or a polygonal socket drive.

11 . An edge guide for guiding a hand-held power tool, which includes (i) a machine housing, (ii) a supporting device for guiding the hand-held power tool on a workpiece and that includes a carrier element in which the machine housing is at least in part accommodated and fastened, the carrier having an end flange facing away from the machine housing that defines a groove, and (iii) a base plate fastened to the end flange, the base plate configured to bear against a workpiece and to enable an insert tool to pass through the base plate along an edge of a workpiece, the edge guide comprising:
a holding arm which has a fastening portion configured to be at least in part accommodated in a positive-locking manner in the groove, the fastening portion defining at least one through bore for an associated threaded screw that is configured to fasten the fastening portion to the end flange, wherein the at least one through bore merges into a longitudinal slot which is open toward a holding arm end, and wherein the longitudinal slot has a V-shaped chamfer and the at least one through bore has a countersink.

12 . A tool system comprising:
a hand-held power tool comprising:
a machine housing; and
a supporting device for guiding the hand-held power tool on a workpiece, the supporting device including a carrier element, in which the machine housing is at least in part accommodated and fastened, the carrier element including an end flange is. facing away from the machine housing, the end flange defining a groove; and
a base plate fastened to the end flange, the base plate configured to bear against a workpiece and to enable an insert tool to pass through the base plate; and
an edge guide configured for guiding the hand-held power tool along an edge of the workpiece and configured to be fastened to the end flange, the edge guide comprising a holding arm having a fastening portion configured to be at least in part accommodated in a positive-locking manner in the groove, the fastening portion defining at least one through bore for an associated threaded screw that is configured to fasten the fastening portion to the end flange, wherein the at least one through bore merges into a longitudinal slot which is open toward a holding arm end, and wherein the longitudinal slot has a V-shaped chamfer and the at least one through bore has a countersink.

13 . The hand-held power tool as claimed in claim 1 , wherein the hand-held power tool is a router.

Assignees

• Bosch Gmbh Robert

Inventors

• Wierzchon Peter

Classifications

• B27C5/10

  Portable hand-operated wood-milling machines; Routers · CPC title

• B23Q9/0028 Primary

  the guide means being fixed only on the machine · CPC title