Browse Prior Art Database

WALL SAW AND INTERCHANGABLE ASSEMBLIES FOR WALL SAWS

IP.com Disclosure Number: IPCOM000197742D
Publication Date: 2010-Jul-21
Document File: 66 page(s) / 2M

Publishing Venue

The IP.com Prior Art Database

Abstract

This relates to wall saws and other equipment and chainsaw cutting heads that can be attached to wall saws and such other equipment, and components and methods relating thereto. This also relates to machining tools other than chain saws that can be attached to wall saws and such other equipment, as well as components and methods relating thereto. An interface assembly and method are described for using a wall saw or other similar equipment for operating a wall saw blade as well as operating a chainsaw cutting device. An assembly and method provide a mounting interface and an rpm interface between the wall saw and a chainsaw cutting device.

This text was extracted from a PDF file.
At least one non-text object (such as an image or picture) has been suppressed.
This is the abbreviated version, containing approximately 5% of the total text.

Page 1 of 66

Ref: 57701-014WO

WALL SAW AND INTERCHANGABLE ASSEMBLIES FOR WALL SAWS

CROSS REFERENCE TO RELATED APPLICATIONS

    This is based on and claims the benefit of US provisional applications Nos. 61/230,119 filed July 31, 2009, 61/319,565 filed March 31, 2010, and

5

61/325,263 filed April 16, 2010, incorporated herein by reference.

BACKGROUND

    This relates to wall saws and other equipment and chainsaw cutting heads that can be attached to wall saws and such other equipment, and

10

components and methods relating thereto. This also relates to machining tools other than chain saws that can be attached to wall saws and such other equipment, as well as components and methods relating thereto.

    Application Publication No. US20070163412 discusses details of a wall saw with which the present apparatus can be used. The specification, claims

15

and drawings of that publication are incorporated fully herein by reference.

SUMMARY

    Apparatus and methods are disclosed for using a single machine for several applications, for example a wall saw for cutting concrete with a flat,

20

circular blade attachment and also for cutting concrete with a chainsaw attachment, such as for corner cuts or deep cuts. With a wall saw application, as well as others where precision positioning of the cutting tool is advantageous, the cutting line for the blade and a cutting line for the chainsaw can be identical without significant alignment, positioning and adjustment

25

issues. In one example, a corner cutting chainsaw capability is built into a conventional wall saw, and in many examples of wall saws, the chainsaw cutting capability can be incorporated to operate within the cutting envelope of the original wall saw cutting package. Additionally, in at least one example, the chainsaw cutting capability can be incorporated into a wall saw without

30

requiring additional motors, additional operating controls, and without additional power supplies or power packs or plumbing. The chainsaw cutting capability can accommodate multiple chain bar sizes and widths, can be implemented with a flush cut capability, can be quickly assembled for

1

Page 2 of 66

Ref: 57701-014WO

operation (for example in five minutes or less), and is lightweight and easy to use.

    In one example of apparatus and methods, a concrete cutting machine includes a motor with an output drive and a pivot arm having a drive input coupled to the output drive of the motor. The arm pivots relative to the motor

and has a drive output for driving a concrete cutting chain assembly or other longitudinally extending tool. In one configuration, the chain assembly can be removed and a cutting blade mounted to the arm, for example a circular saw blade. In another configuration, the pivot arm includes an interface and the chain assembly is supported on the interface in such a way that the chain

assembly can pivot relative to the pivot arm. Additionally, the chain assembly can pivot relative to the pivot arm about an axis coaxial w...