Source: https://patents.google.com/patent/US7089978B2/en
Timestamp: 2018-07-18 02:12:50
Document Index: 722440983

Matched Legal Cases: ['Application No. 60', 'art 160', 'art 160', 'art 160', 'art 160', 'art 160', 'arts 116']

US7089978B2 - Tool attachment system and router attachment and method incorporating same - Google Patents
Tool attachment system and router attachment and method incorporating same Download PDF
US7089978B2
US7089978B2 US10777016 US77701604A US7089978B2 US 7089978 B2 US7089978 B2 US 7089978B2 US 10777016 US10777016 US 10777016 US 77701604 A US77701604 A US 77701604A US 7089978 B2 US7089978 B2 US 7089978B2
US10777016
US20040182476A1 (en )
John R. Kochanski
This patent application claims the benefit of U.S. Provisional Patent Application Nos. 60/446,871, filed Feb. 12, 2003, 60/505,275, filed Sep. 23, 2003, and 60/530,701, filed Dec. 15, 2003.
A universal router bushing adapter, generally designated 10, for permitting attachment of a router guide bushing 12 to any of a plurality of routers, such as router 14, is illustrated in the FIGS. 1–13. The router guide bushing has a cylindrical extension 13. The adapter 10 comprises an adapter plate 18 having a plurality of mounting apertures 22 corresponding to mounting apertures of the plurality of spring-biased router base plates, such as base plate 23.
The adapter 10 further includes a centering bit 26 having a first end 26 adimensioned for insertion into a router chuck 28. The router chuck 28 is dimensioned to receive a bit of a first dimension, such as ¼inch. The centering bit 26 further includes a first centering portion spaced from the first end 26 a. The first centering portion is in the form of a frustum. The first centering portion is generally solid.
For use with a router having a chuck dimensioned to receive a bit of a second dimension, such as ½inch, the centering bit 26 also includes a second end 26 be dimensioned for insertion into the second dimensioned chuck. The centering bit also includes a second centering portion spaced from the second end 26 b. The second centering portion is in the form of a frustum.
Turning to a second embodiment of the present invention, an adjustable router guide attachment 110 for a router 111 is shown in the FIGS. 14–22. The attachment 110 generally includes a router mounting adapter 112, a rail 114, a center pilot member 116, and a edge guide assembly 118.
The router mounting adapter 112 preferably comprises a quick attachment and release type of adapter as shown, which may comprise a locking and release mechanism that may be similar to that disclosed and taught in U.S. Patent Application No. 60/446,871, entitled “Universal Router Guide Bushing Adapter And Method” filed on Feb. 12, 2003, and as such the entire disclosure of this application is hereby incorporated by reference. The router mounting adapter 112 includes a collar 120 and a mounting plate 122, both of which may be formed of plastic material, or cast from metal material for heavier duty construction. The mounting plate 122 includes bolt holes that facilitate bolting of the mounting plate 122 to the end face of the router 111 generally concentric or coaxial about the router's spindle.
A handle 164 is provided that is extendible and retractable (see e.g. FIGS. 16 and 20). The handle 164 may also be part of a clamping mechanism which may be used to releasably secure the edge guide assembly 118 to selectively adjust position. The handle 164 is pivotally mounted to a pivot pin 168, which is secured to the upper component part 160 a via a screw 172 extending through the lower component part 160 b. The screw 172 is biased in one axial direction via a spring washer 174. The handle includes a slot 170 to allow for pivoting movement of the handle relative to the pivot pin 168 and an eccentric cam surface 166 that rides against the bottom surface of the lower component part 160 b.
When the handle 164 is retracted, the bar segment 160 is relaxed allowing edge guide assembly 118 to be linearly moved and repositioned to the rail 114 through sliding contact between complimentary dovetail surfaces. However, when the handle 164 is moved to an extended position, the cam surface 166 engages the bottom surface of the bar segment 160, causing the upper segment component part 160 a to be forced downwardly and the lower segment component part 160 b to be forced upwardly wedging the components in the rail 114 and in effect clamping the edge guide assembly 118 in a fixed position relative to the rail 114.
Another aspect of the disclosed embodiment is directed toward the feature of a centering pilot member 116 which comprises two component parts 116 a, 116 b, each of which includes a complimentary dovetail profile 180 that is adapted to slide linearly within the dovetail groove 138 of the rail 114. The centering pilot member 116 also includes a cylindrical bushing 182 with a central through hole 184 that is adapted to be nailed or screwed or otherwise fastened to a working surface. The bushing 182 is received in a cylindrical cavity 186 of the member 116 to provide for rotation/pivoting movement therebetween.
Turning to a third embodiment of the present invention, a router guide attachment 210 as shown in FIGS. 25–32 attaches and detaches with a router 212 as shown in FIG. 33. The attachment 210 includes several component parts including a housing 214, a handle 216, a lock actuator 218, and a retention plate 220.
As shown, a router guide attachment preferably comprises a quick attach and release type mounting adaptor as shown, which may comprise a locking and release mechanism that may be similar to that disclosed and taught in U.S. Provisional Patent Application Ser. No. 60/446,871, entitled “Universal Router Guide Pushing Adaptor And Method” filed on Feb. 12, 2003 or U.S. Provisional Patent Application Ser. No. 60/505,275, entitled “Adjustable Router Guide” filed on Sep. 23, 2003, and as such the entire disclosures of these applications are hereby incorporated by reference. To facilitate quick attachment and detachment, the housing 214 includes a collar portion 222 that is adapted to rotatably engage a relatively flat circular mounting plate 224 (see FIG. 33). Both the collar 222 and the mounting plate 224 may be formed of plastic material, or cast from metal material for heavier duty construction. Mounting plate 224 includes bolt holes with the facilitating bolting of the mounting plate 224 to the end face of the router 212 generally concentric or coaxial about the router spindle. It will be readily appreciated that alternatively, the end face of the router may unitarily provide the mounting plate 224 (e.g., the mounting plate 224 may be unitarily formed into the housing of the router 212 and therefore a separate plate component may not be needed).
a router including a router housing and a spindle, the spindle adapted to revolve relative to the housing about a vertical axis;
wherein the router attachment is rotatable between a release position and an attach position, the router attachment being removable from the mounting adapter in the release position, the router attachment vertically engaging the mounting adapter in opposing directions along the axis in the attach position for vertical retention of the router attachment;
a lock locking the router attachment and the mounting adapter in the attach position to prevent relative rotation therebetween, the lock subject to manual actuation to allow rotation between the router attachment and the mounting adapter for detachment of the router attachment from the mounting adapter; and
wherein the lock comprises an actuator carried by the attachment housing, the actuator movable between a lock position and an unlock position, the mounting adapter including a stop surface engaging the actuator in the lock position to prevent relative rotation between the router attachment and the mounting adapter, the actuator being manually movable to the unlock position to cause disengagement between the actuator and the stop surface and thereby allow rotation toward the release position.
2. The router attachment system of claim 1, wherein the lock comprises corresponding snaps on the attachment and mounting surfaces, the snaps snapping past each other during rotation from the release position to the attach position to hold the router attachment in the attach position.
3. The router attachment system of claim 1, wherein the actuator is movable along a transverse axis relative to the vertical axis, a spring supported by the attachment housing biasing the actuator toward the mounting adapter.
4. The router attachment system of claim 3, further comprising camming means between the mounting adapter and the actuator for automatically moving the actuator toward the unlock position against the bias of the spring in response to relative rotation between the mounting adapter and the router attachment toward the attach position.
5. The router attachment system of claim 3, wherein the actuator is mounted to a bottom side of the attachment housing and includes a pull tab projecting through an opposite top side of the attachment housing.
6. The router attachment system of claim 1, wherein the mounting adapter includes first flanges projecting radially along the annular mounting surface, and wherein the attachment housing includes second flanges projecting radially along the annular attachment surface, the first and second flanges being vertically movable past each other in the release position to permit vertical removal of the router attachment from the mounting adapter, the first and second flanges interlocking with each other when in the attach position to prevent vertical removal.
7. The router attachment system of claim 6, wherein the first flanges lie in a common plane substantially perpendicular to the vertical axis, and wherein the second flanges lie in a common plane substantially perpendicular to the vertical axis, and wherein the first flanges and second flanges are angularly spaced at equidistant angular intervals about the vertical axis.
8. The router attachment system of claim 6, further comprising first and second chamfered surfaces formed into the attachment and mounting surfaces, wherein vertical interference between the first and second chamfered surfaces provide for vertical retention in a first direction along the vertical axis, and wherein interlocking engagement between first and second flanges provides for vertical retention along the vertical axis in a second direction opposite said first direction.
9. The router attachment system of claim 1, wherein the router attachment comprises a generally circular collar portion defining the annular attachment surface, the collar portion centrally receiving the mounting adapter.
10. The router attachment system of claim 1, wherein the mounting adapter includes a generally circular collar portion defining the annular mounting surface, the collar portion centrally receiving the router attachment.
11. The router attachment system of claim 1, wherein the annular mounting surface of the mounting adapter includes an outer radial peripheral mounting surface adapted to mate with a first type of router attachment having collar portion for centrally receiving the mounting adapter, and a central hole adapted to communicate the spindle therethrough, the mounting adapter having an inner radial peripheral mounting surface about the central hole adapted to mate with a second type of router attachment that is received centrally into the central hole.
12. The router attachment system of claim 1, wherein the mounting adapter comprises a mounting plate having a plurality of bolt holes, and a central opening adapted to convey the spindle therethrough, further comprising bolts fastening the mounting plate to the router housing.
13. The router attachment system of claim 1, wherein the mounting adapter is integrally and unitarily formed with the router housing.
14. A router attachment system for a router, the router comprising a router housing and a spindle, the spindle revolving relative to the housing about a vertical axis, the router attachment system comprising:
a mounting adapter plate having a plurality of bolt holes and a central hole adapted for communicating the spindle therethrough when the mounting adapter plate is mounted to the router housing, at least two of the bolt holes matching with corresponding bolt holes in the router housing, wherein the mounting adapter plate is adapted to be fastened to the router housing; and
a router attachment attaching to and detaching from the mounting adapter plate without bolts, the router attachment vertically engaging and rotationally engaging the mounting adapter plate when attached to the mounting plate adapter to prevent relative movement therebetween;
wherein the mounting adapter plate and the router attachment include corresponding annular mounting and attachment surfaces, respectively, the annular mounting and attachment surfaces adapted to mate with each other wherein the router attachment is rotatable between a release position and an attach position, the router attachment being removable from the mounting adapter plate in the release position, the router attachment vertically engaging the mounting adapter plate in opposing directions along the axis in the attach position for vertical retention of the router attachment; and
further comprising an actuator carried by an attachment housing of the router attachment the actuator movable between a lock position and an unlock position, the mounting adapter plate including a stop surface engaging the actuator in the lock position to prevent relative rotation between the router attachment and the mounting adapter plate, the actuator being manually movable to the unlock position to cause disengagement between the actuator and the stop surface and thereby allow rotation to the release position.
15. The router attachment system of claim 14, further comprising:
first vertical engagement means between the mounting adapter plate and the router attachment for vertically retaining the router attachment to the mounting adapter along a first direction along the vertical axis;
second vertical engagement means between the mounting adapter plate and the router attachment for vertically retaining the router attachment to the mounting adapter along a second direction along the vertical axis opposite said first direction; and
first rotational locking means for rotationally locking the router attachment to the mounting adapter plate in the attach position.
16. The router attachment of claim 14 wherein the mounting adapter plate includes an outer radial peripheral mounting surface adapted to mate with a first type of router attachment having collar portion for centrally receiving the mounting adapter plate, and wherein the mounting adapter includes an inner radial peripheral mounting surface defining a central hole that is adapted to mate with a second type of router attachment and that is received into the central hole.
17. The router attachment system of claim 14, further comprising corresponding snaps on the mounting and attachment surfaces, the snaps snapping past each other during rotation from the release position to the attach position to hold the router attachment in the attach position.
18. The router attachment system of claim 14, wherein the actuator is movable along a transverse axis relative to the vertical axis, a spring supported by the attachment housing biasing the actuator toward the mounting adapter.
19. The router attachment system of claim 14, wherein the mounting adapter plate includes first flanges projecting radially along the annular mounting surface, and wherein the router attachment includes second flanges projecting radially along the annular attachment surface, the first and second flanges being vertically movable past each other in the release position to permit removal of the router attachment from the mounting adapter plate, the first and second flanges interlocking with each other when in the attach position to prevent removal.
20. The router attachment system of claim 19, wherein the first flanges lie in a common plane substantially perpendicular to the vertical axis, and wherein the second flanges lie in a common plane substantially perpendicular to the vertical axis, and wherein the first flanges and second flanges are angularly spaced at equidistant angular intervals about the vertical axis.
21. The router attachment system of claim 19 further comprising first and chamfered conical surfaces between the mounting and attachment surfaces, respectively, wherein vertical interference between the first and second chamfered surfaces provide for vertical retention in a first direction along the vertical axis, and wherein interlocking engagement between first and second flanges provides for vertical retention along the vertical axis in a second direction opposite said first direction.
22. The router attachment system of claim 14, wherein the router attachment comprises a generally circular collar portion centrally receiving the mounting adapter plate.
23. The router attachment system of claim 14, wherein the router attachment is received into the central hole, the router attachment defining a central opening for communicating the spindle therethrough when mounted to the router.
24. A tool attachment for mounting to a mounting adapter along an axis, the mounting adapter including an annular mounting surface a plurality of mounting flanges angularly spaced about the axis, the tool attachment, comprising:
an attachment housing including a generally circular attachment surface sized and configured to mate with the annular mounting surface;
a plurality of attachment flanges projecting radially from the attachment housing along the attachment surface, the attachment flanges being arranged in a common plane generally perpendicular to the axis and angularly spaced about the axis, a plurality of gaps defined between adjacent pairs of the attachment flanges providing sufficient clearance to receive the mounting flanges through the gaps;
means for rotationally locking the attachment housing to the mounting adapter, and
wherein said locking means comprises an actuator carried by the attachment housing, the actuator movable between a lock position and an unlock position, the actuator being movable between the lock and Linlock positions transversely relative to the axis, the lock actuator including a stop tab projecting from the attachment surface in the lock position for engaging the mounting adapter.
25. The tool attachment system of claim 24, wherein said rotational locking means comprises at least one snap adapted to resiliently engage the mounting adapter.
26. The tool attachment of claim 25 wherein the at least one snap is formed into at least one of the attachment flanges.
27. The tool attachment of claim 26, wherein the at least one snap is formed into a bottom surface of at least one of the attachment flanges.
28. The tool attachment of claim 24, wherein the generally circular attachment surface comprises a chamfered engagement surface for vertically engaging the mounting adapter.
29. The tool attachment of claim 24, wherein the attachment housing comprises plastic material that form the attachment surface and the plurality of attachment flanges.
30. The tool attachment of claim 24, further comprising a spring supported by the attachment housing biasing the actuator toward the attachment surface.
31. The tool attachment of claim 30, further comprising camming means on the actuator for automatically moving the actuator toward the unlock position against the bias of the spring in response to relative rotation between the mounting adapter and the tool attachment toward the attach position.
32. The tool attachment of claim 24, wherein the actuator is mounted to a bottom side of the attachment housing and includes a pull tab projecting through an opposite top side of the attachment housing.
33. The tool attachment of claim 24, wherein the tool attachment comprises a generally circular collar portion defining the attachment surface, the collar portion adapted to centrally receive the mounting adapter.
34. The tool attachment of claim 24, wherein the attachment surface is formed into a radial periphery of the attachment housing with the attachment flanges projecting radially outward, the attachment housing adapted to be inserted into an opening in the mounting adapter.
35. The tool attachment of claim 24, further comprising guide means for engaging a working surface and for guiding movement of a spindle of a router when attached thereto.
36. The tool attachment of claim 35, wherein the guide means comprises an annular bushing projecting downward from a generally planar bottom slide surface.
37. The tool attachment of claim 35, wherein the guide means comprises a rail extending from the attachment housing and a slide selectively movable along the rail, the slide including a guide surface for engaging an edge of the working surface.
38. A method of releasably attaching a tool attachment to a mounting adapter about an axis, the method comprising:
installing the tool attachment onto a mounting adapter along the axis to facilitate engagement in a first direction along the axis between mounting and attachment surfaces of the mounting adapter and the tool attachment, respectively;
facilitating relative rotation about the axis between the mounting adapter and the tool attachment to cause interlocking engagement between corresponding flanges along the first and second attachment surfaces and thereby provide for retention of the tool attachment to the mounting adapter in a second direction opposition said first direction; and
rotationally locking the mounting adapter to the tool attachment; and
wherein said rotational locking comprises driving a spring loaded actuator transversely relative to the axis the actuator including a stop tab having an advanced position in which the stop tab is positioned to engage the mounting adapter to prevent relative rotation between the mounting adapter and the tool attachment.
39. The method of claim 38, wherein the mounting adapter is unitarily formed into a router housing of a router having a vertically rotatable spindle along the axis.
40. The method of claim 38, wherein the mounting adapter is provided by a mounting adapter plate, further comprising bolting the mounting adapter plate onto a router housing of a router having a vertically rotatable spindle along the axis, the spindle extending through the mounting adapter plate.
41. The method of claim 38, wherein said facilitating relative rotation comprising rotating at least one of the mounting adapter and the tool attachment about the axis until corresponding stop surfaces between the mounting adapter and the tool attachment abut.
42. The method of claim 38, wherein said rotational locking comprises resiliently snapping the tool attachment to the mounting adapter.
43. The method of claim 38, further comprising rotationally unlocking the mounting adapter from the tool attachment by manually retracting the stop tab and facilitating relative rotation about the axis between the mounting adapter and the tool attachment.
44. The method of claim 38, further comprising camming the actuator and thereby retracting the actuator automatically during said relative rotation.
45. The method of claim 38, wherein said installing comprises seating corresponding mating surfaces between the mounting adapter and the tool attachment in a first direction along the axis, passing a plurality of first flanges of the mounting adapter through corresponding gaps formed between a plurality of second flanges of the tool attachment, and said facilitating rotation comprises interlocking the first and second flanges to retain the tool attachment to the mounting adapter and prevent removal in a second direction opposite said first direction.
US10777016 2003-02-12 2004-02-11 Tool attachment system and router attachment and method incorporating same Active US7089978B2 (en)
US44687103 true 2003-02-12 2003-02-12
US50527503 true 2003-09-23 2003-09-23
US53070103 true 2003-12-15 2003-12-15
US10777016 US7089978B2 (en) 2003-02-12 2004-02-11 Tool attachment system and router attachment and method incorporating same
US11196720 US7467651B2 (en) 2001-11-09 2005-08-03 Tool attachment system and router attachment and method incorporating same
US20040182476A1 true US20040182476A1 (en) 2004-09-23
US7089978B2 true US7089978B2 (en) 2006-08-15
ID=32872763
US10777016 Active US7089978B2 (en) 2003-02-12 2004-02-11 Tool attachment system and router attachment and method incorporating same
US (1) US7089978B2 (en)
EP (1) EP1592528B1 (en)
CN (1) CN1832834B (en)
CA (1) CA2515649A1 (en)
DE (1) DE602004022777D1 (en)
WO (1) WO2004071698A3 (en)
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Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:KARKOSCH, JOE;KOCHANSKI, JOHN R.;ADKINS, EDWARD;AND OTHERS;REEL/FRAME:015327/0596