Cutting apparatus including a visual tension indicator mechanism

Patent metadata

Field	Value
Publication number	US-11344959-B2
Application number	US-202016792618-A
Country	US
Kind code	B2
Filing date	Feb 17, 2020
Priority date	Jun 9, 2017
Publication date	May 31, 2022
Grant date	May 31, 2022

Abstract

A cutting apparatus and the method of operating same is provided. The apparatus includes a feed tower assembly configured to be attached to an object and a frame base plate movably attached thereto. The frame base plate has a pivotable arm assembly and an arm wheel thereon which accept a cutting member. A visual tension indicator is operably connected to the frame base plate and the arm assembly and configured to indicate an amount of tension applied to the cutting member.

First claim

The invention claimed is:

1. A cutting apparatus comprising:
a feed tower assembly including a guide plate and a saddle connected to the guide plate, the saddle configured to be attached to an object to be cut;
a frame base plate and a driven drive wheel mounted on the frame base plate;
a first arm assembly comprising a first arm plate pivotally coupled to the frame base plate and having an arm wheel rotatably mounted thereon, the first arm assembly being pivotable relative to the saddle;
a second arm wheel coupled to the frame base plate;
a rod attached to the guide plate and rotatable relative thereto, and attached to the frame base plate, wherein rotation of the rod causes translation of the frame base plate, the first arm assembly and the second arm wheel upwardly and downwardly relative to the saddle;
a cutting member partially wrapped around the first and second arm wheels and the drive wheel; and
a tensioning assembly operably connected to the frame base plate and the first arm assembly and configured to visually indicate an amount of tension applied to the cutting member, the tensioning assembly including a housing having an indicator arm movably mounted therein and operatively coupled to the first arm assembly, wherein pivotal movement of the first arm assembly causes movement of the indicator within the housing.

2. The cutting apparatus of claim 1 , further comprising a second arm plate pivotally mounted on the frame base plate and having the second arm wheel rotatably mounted thereon.

3. The cutting apparatus of claim 1 , further comprising a spring-loaded piston coupled to the frame base plate and coupled to the first arm assembly and to the indicator.

4. The cutting apparatus of claim 1 , further comprising a wire tensioning base plate and a wire tensioning height adjustment mechanism, the wire tensioning height adjustment mechanism coupled to the frame base plate and to the wire tensioning base plate and configured to move the wire tensioning base plate upwardly and downwardly relative to the frame base plate, wherein the first arm assembly is pivotally mounted on the wire tensioning base plate.

5. The cutting apparatus of claim 1 , further comprising indicia on the housing indicating a plurality of operating conditions.

6. A cutting apparatus comprising:
a feed tower assembly including a guide plate and a saddle connected to the guide plate, the saddle configured to be attached to an object to be cut;
a frame base plate and a driven drive wheel mounted on the frame base plate;
a first arm assembly comprising a first arm plate pivotally coupled to the frame base plate and having an arm wheel rotatably mounted thereon, the first arm assembly being pivotable relative to the saddle;
a second arm wheel coupled to the frame base plate;
a rod attached to the guide plate and rotatable relative thereto, and attached to the frame base plate, wherein rotation of the rod causes translation of the frame base plate, the first arm assembly and the second arm wheel upwardly and downwardly relative to the saddle;
a cutting member partially wrapped around the first and second arm wheels and the drive wheel;
a tensioning assembly operably connected to the frame base plate and the first arm assembly and configured to visually indicate an amount of tension applied to the cutting member;
a wire tensioning base plate and a wire tensioning height adjustment mechanism, the wire tensioning height adjustment mechanism coupled to the frame base plate and to the wire tensioning base plate and configured to move the wire tensioning base plate upwardly and downwardly relative to the frame base plate, wherein the first arm assembly is pivotally mounted on the wire tensioning base plate; and
a latch attached to the first arm assembly and configured to be attached to the wire tensioning base plate.

7. A cutting apparatus comprising:
a feed tower assembly including a guide plate and a saddle connected to the guide plate, the saddle configured to be attached to an object to be cut;
a frame base plate and a driven drive wheel mounted on the frame base plate;
a first arm assembly comprising a first arm plate pivotally coupled to the frame base plate and having an arm wheel rotatably mounted thereon, the first arm assembly being pivotable relative to the saddle;
a second arm wheel coupled to the frame base plate;
a rod attached to the guide plate and rotatable relative thereto, and attached to the frame base plate, wherein rotation of the rod causes translation of the frame base plate, the first arm assembly and the second arm wheel upwardly and downwardly relative to the saddle;
a cutting member partially wrapped around the first and second arm wheels and the drive wheel;
a tensioning assembly operably connected to the frame base plate and the first arm assembly and configured to visually indicate an amount of tension applied to the cutting member; and
a wire tensioning base plate and a wire tensioning height adjustment mechanism, the wire tensioning height adjustment mechanism coupled to the frame base plate and to the wire tensioning base plate and configured to move the wire tensioning base plate upwardly and downwardly relative to the frame base plate, wherein the first arm assembly is pivotally mounted on the wire tensioning base plate, the wire tensioning height adjustment mechanism including a block extending from the frame base plate, and a rod engaged with the block and engaged with the wire tensioning base plate, wherein rotation of the rod causes vertical movement of the wire tensioning base plate and the first arm assembly relative to the frame base plate and the feed tower assembly.

8. The cutting apparatus of claim 7 , wherein the frame base plate has a front surface and a rear surface, the drive wheel being mounted on the front surface of the frame base plate and the block extending from the rear surface of the frame base plate.

9. A cutting apparatus comprising:
a feed tower assembly configured to be attached to an object to be cut;
a frame base plate assembly comprising a frame base plate and a driven drive wheel mounted on the frame base plate;
a frame base plate adjustment mechanism coupled to the frame base plate and to the feed tower assembly and configured to move the frame base plate assembly upwardly and downwardly relative to the feed tower assembly;
a wire tensioning assembly comprising a wire tensioning base plate and a wire tensioning height adjustment mechanism, the wire tensioning height adjustment mechanism coupled to the frame base plate and to the wire tensioning base plate and configured to move the wire tensioning base plate upwardly and downwardly relative to the frame base plate;
a first arm assembly pivotally mounted on the wire tensioning base plate such that the first arm assembly can be positioned in an operating position or a storage position, the first arm assembly comprising a first arm plate having an arm wheel rotatably mounted thereon;
a first arm adjustment mechanism coupled to the wire tensioning base plate and to the first arm plate and configured to pivot the first arm assembly relative to the wire tensioning base plate;
a second arm assembly mounted on the frame base plate, the second arm assembly comprising a second arm plate having an arm wheel rotatably mounted thereon; and
a cutting member partially wrapped around the arm wheels and the drive wheel.

10. The cutting apparatus of claim 9 , further comprising a visual tension indicator operably connected to the frame base plate and the first arm assembly and configured to indicate an amount of tension applied to the cutting member.

11. The cutting apparatus of claim 9 , further compris

Assignees

• Illinois Tool Works

Inventors

• Pierce Kenneth R
• Gearhart Michael W
• Swiatowy Jeffrey M
• Wozniak Mark W

Classifications

• B23D59/04

  Devices for lubricating or cooling straight or strap saw blades · CPC title

• B23D57/003

  Sawing machines or sawing devices working with saw wires, characterised only by constructional features of particular parts (constructional features of these parts per se B23Q) · CPC title

• B23D57/00 Primary

  Sawing machines or sawing devices not covered by one of the preceding groups B23D45/00 - B23D55/00 · CPC title

• B23D57/0038

  of frames; of tables · CPC title

• Y10T83/9292

  Wire tool · CPC title