Router and sub-base adapter therefor

Patent metadata

Field	Value
Publication number	US-2025050530-A1
Application number	US-202418796782-A
Country	US
Kind code	A1
Filing date	Aug 7, 2024
Priority date	Aug 7, 2023
Publication date	Feb 13, 2025
Grant date	—

Abstract

A router including a housing and a motor mounted in the housing. The motor is operatively connected to a tool holder arranged to hold a cutting tool bit. The housing includes a base portion or has a base portion mounted thereto. A sub-base is mountable to the base portion. The sub-base includes a sub-base adapter configured to receive a first guide bushing and a second guide bushing. The first guide bushing is a different type of bushing from the second guide bushing.

First claim

We claim:

1 . A router comprising:
a housing including a base portion; a tool holder arranged to hold a cutting tool bit; a motor mounted in the housing and operatively connected to the tool holder; a sub-base mountable to the base portion, the sub-base including a sub-base adapter configured to receive a first guide bushing and a second guide bushing, wherein the first guide bushing is a different type of bushing from the second guide bushing.

2 . The router according to claim 1 , further comprising a first bushing mounting arrangement arranged to mount the first guide bushing to the base portion.

3 . The router according to claim 2 , further comprising a second bushing mounting arrangement arranged to mount the second guide bushing to the base portion.

4 . The router according to claim 3 , wherein the first and second bushing mounting arrangements are different.

5 . The router according to claim 4 , wherein the first bushing mounting arrangement is at a first position on the sub-base adapter and the second bushing mounting arrangement is at a second position on the sub-base adapter.

6 . The router according to claim 2 , wherein the first guide bushing comprises a protruding portion that projects through the sub base adapter, and
wherein the first bushing mounting arrangement comprises clamping the sub-base adapter between a bushing locking ring engageable with the protruding portion of the first guide bushing.

7 . The router according to claim 6 , wherein the first bushing mounting arrangement comprises a first bushing recess on a first side of the sub-base adapter, the first bushing recess being configured to receive the bushing locking ring, and
a second bushing recess on a second side of the sub-base adapter, the second bushing recess being configured to receive a portion of the first guide bushing.

8 . The router according to claim 7 , wherein the first guide bushing comprise a radially protruding shoulder portion and the second bushing recess is configured to receive the radially protruding shoulder portion of the first guide bushing.

9 . The router according to claim 3 , wherein the second bushing mounting arrangement comprises at least one bushing fastener hole in the sub-base adapter, and
wherein the at least one bushing fastener hole is configured to receive at least one bushing screw fastener when the second guide bushing is mounted to the router.

10 . The router according to claim 9 , wherein a second bushing recess on the second side of the sub-base adapter is configured to receive at least a portion of the second guide bushing and a head portion of the at least one bushing screw fastener when the at least one bushing screw fastener is inserted into the at least one bushing fastener hole.

11 . The router according to claim 10 , wherein the at least a portion of the second guide bushing is a radially projecting flange portion of the second guide bushing.

12 . The router according to claim 11 , wherein the radially projecting flange portion of the second guide bushing is flush with a workpiece facing surface of the sub-base adapter.

13 . The router according to claim 9 , wherein the at least one bushing fastener hole is configured to receive the at least one bushing screw fastener when the second guide bushing is not mounted to the router.

14 . The router according to claim 1 , wherein the sub-base adapter is removably mountable to the base portion.

15 . The router according to claim 14 , wherein the sub-base adapter is mountable to the base portion with a plurality of screw fasteners.

16 . The router according to claim 1 , wherein the first guide bushing and the second guide bushing comprise different heights in a direction along a longitudinal axis of the router when mounted on the router.

17 . A router assembly comprising:
a router having a housing; a base portion mounted to the housing; a tool holder arranged to hold a cutting tool bit; a motor mounted in the housing and operatively connected to the tool holder; at least one of a first guide bushing and a second guide bushing; a sub-base mountable to the base portion, the sub-base including a sub-base adapter configured to receive one of the first guide bushing or the second guide bushing, wherein the first guide bushing is a different type of bushing from the second guide bushing.

18 . A sub-base mountable to the base portion of a router, the sub-base comprising:
a sub-base adapter having a first mounting arrangement configured to receive a first guide bushing and a second mounting arrangement configured to receive second guide bushing, wherein the first guide bushing is a different type of bushing from the second guide bushing.

Assignees

• Black & Decker Inc

Inventors

• Lauer Arthur
• Arich Klaus-Dieter

Classifications

• B23Q9/0028

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

• B27C5/10 Primary

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