US 4,735,531 AGranted

Acoustic tile cutting assembly

AssigneeL. & D. Sales Corporation

InventorsDavid A. Boerckel, Lawrence H. Boerckel

Life of this patent

Estimating the term…

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Abstract

A router guide assembly which permits rectilinear movement of a router for cutting acoustic tile panels while providing a reveal edge along the cut edges. Quick and easy movement is provided by two railed carriage sub assemblies, one of which is carried by the other. Manually activated mechanical stops are provided on each carriage for selectively preventing movement in either orthogonal direction so that a linear cut can be made in the other direction. Lock down devices are included for holding a tile in place. The assembly also includes a plastic housing and skirt attached to the underside of a router mounting plate for collecting and directing the sawdust resulting from the cutting of a tile to a location remote from the router guide assembly. Numerical measuring scales are selectively located on the assembly and include calibrations so that a required offset for bit size is automatically included when measuring for a particular cut.

Claims17

Dependent claims

A router guide assembly comprising:

a rectilinear base;
means for holding a workpiece in position on said base;
a pair of parallel elongated side members secured to the base and each side member including a pair of aligned vertically oriented rails extending longitudinally adjacent opposing side edges of the base;
a pair of side plates located adjacent said side members and respectively including a set of wheels engaging respective pairs of said vertically oriented rails;
a pair of parallel elongated cross members secured to said side plates, each said cross member including an inner horizontally oriented rail mutually opposed to one another;
a router mounting plate for carrying a router located intermediate said cross member and including a set of wheels engaging said horizontally oriented rails, said router thereby being movable in two mutually orthogonal directions;
manually activated stop means for selectively restraining movement of the router in both said orthogonal directions;
and
linear measurement means including predetermined indicia thereon located on one of said side members and one of said cross members for making accurate linear cut on said workpiece.

6 more elements

Dependencies are inferred from the claim text.

Facts

Application: 07/097,692Filed 17 Sep 1987
Granted: 5 Apr 1988
Term ends: Not estimatedThe source records don’t support an estimate.

Classification9 codes

B27C 1/007
Machines for producing flat surfaces, e.g. by rotary cutters; Equipment therefor: for cutting through a work-piece with a tool having a rotational…
B23Q 1/621
With perpendicular axes, e.g. cross-slides: a single sliding pair followed perpendicularly by a single sliding pair
B23Q 9/0078
Portable machines cooperating with guide means not supported by the workpiece during working: the guide means being fixed to a support
B23Q 11/0046
Devices for removing chips: by sucking