Cable cutter

Patent metadata

Field	Value
Publication number	US-11052474-B2
Application number	US-201916554357-A
Country	US
Kind code	B2
Filing date	Aug 28, 2019
Priority date	Sep 7, 2018
Publication date	Jul 6, 2021
Grant date	Jul 6, 2021

Abstract

A cable cutter includes stationary and moveable clamps, each comprising a respective pivot opening and a cutting edge spaced from the pivot opening. A pivot joint connects the clamps to allow the movable clamp to pivot about a pivot axis relative to the stationary clamp. The pivot joint includes a threaded connector having a head and a shank extending from the head along the pivot axis through the pivot openings in the clamps. A collar has opposing faces and an opening extending through the collar. A nut is threaded on the shank and the clamps are sandwiched between the head and the collar with the head adjacent one of the clamps. The collar is engaged to rotate with the shank the about the pivot axis.

First claim

The invention claimed is:

1. A cable cutter comprising:
a stationary clamp, the stationary clamp comprising a pivot opening and a cutting edge spaced from the pivot opening;
a movable clamp, the movable clamp comprising another pivot opening and another cutting edge spaced from the another pivot opening;
a pivot joint connecting the clamps to allow the movable clamp to pivot about a pivot axis relative to the stationary clamp, the pivot joint comprising:
a threaded connector having a head and a shank extending from the head along the pivot axis through the pivot openings in the clamps;
a collar having opposing faces and an opening extending through the collar from one of the opposing faces to the other opposing face; and
a nut in threaded engagement with a threaded portion of the shank;

wherein the clamps are sandwiched between the head and the collar with the head adjacent one of the clamps, one of the opposing faces of the collar adjacent the other of the clamps, the other of the opposing faces adjacent the nut, the shank extending through the opening in the collar, and the collar engaged with the shank to rotate with the shank about the pivot axis; and
wherein an anti-rotation portion of the shank is located in the opening of the collar, the anti-rotation portion of the shank having a non-circular cross-sectional shape and the opening in the collar having a non-circular cross-sectional shape that conforms to the non-circular cross-sectional shape of the portion of the shank.

2. The cable cutter of claim 1 , wherein the head is abutted against the one of the clamps, the one of the opposing faces of the collar is abutted against the other of the clamps, and the other of the opposing faces is abutted against the nut.

3. The cable cutter of claim 1 , wherein at least one of the nut and the collar comprise a threaded opening that receives a threaded fastener that is engaged against the shank.

4. The cable cutter of claim 1 wherein the non-circular cross-sectional shapes are D-shaped and are defined by mating flat surfaces formed on the shank and the collar.

5. The cable cutter of claim 1 wherein the threaded portion of the shank comprises the anti-rotation portion.

6. The cable cutter of claim 1 , wherein a bearing portion of the shank is located in the pivot openings of the clamps, the bearing portion having a cylindrical outer surface.

7. The cable cutter of claim 6 wherein the shank has a uniform diameter along its length.

8. The cable cutter of claim 1 , wherein a first bearing portion of the shank is located in the pivot opening of the movable clamp and a second bearing portion of the shank is located in the pivot opening of the stationary clamp, the first bearing portion has a first cylindrical outer surface having a first diameter, and the second bearing portion has a second cylindrical outer surface having a second diameter that is different than the first diameter.

9. The cable cutter of claim 8 , wherein the first diameter is greater than the second diameter.

10. The cable cutter of claim 1 , wherein the movable clamp comprises an arcuately shaped rack having a plurality of teeth.

11. The cable cutter of claim 10 further comprising a motor operably connected to the rack by a gear transmission.

12. A cable cutter comprising:
a stationary clamp, the stationary clamp comprising a pivot opening and a cutting edge spaced from the pivot opening;
a movable clamp, the movable clamp comprising another pivot opening and another cutting edge spaced from the another pivot opening;
a pivot joint connecting the clamps to allow the movable clamp to pivot about a pivot axis relative to the stationary clamp, the pivot joint comprising:
a threaded connector having a head and a shank extending from the head along a pivot axis through the pivot openings in the clamps, a portion of the shank having a D-shaped cross-section;
a collar having opposing faces and a D-shaped opening that conforms to the D-shaped cross-section of the shank, the D-shaped opening extending through the collar from one of the opposing faces to the other opposing face; and
a nut in threaded engagement with a threaded portion of the shank;

wherein the clamps are sandwiched between the head and the collar with the head adjacent one of the clamps, one of the opposing faces of the collar adjacent the other of the clamps, the other of the opposing faces adjacent the nut, the shank extending through the opening in the collar, and the portion of the shank having the D-shaped cross-section engaged with the D-shaped opening in the collar.

13. The cable cutter of claim 12 wherein the head is abutted against the one of the clamps, the one of the opposing faces of the collar is abutted against the other of the clamps, and the other of the opposing faces is abutted against the nut.

14. The cable cutter of claim 12 wherein at least one of the nut and the collar comprise a threaded opening that receives a threaded fastener that is engaged against the shank.

15. The cable cutter of claim 12 wherein the threaded portion of the shank comprises the portion of the shank having the D-shaped cross-section.

16. The cable cutter of claim 12 wherein a bearing portion of the shank is located in the pivot openings of the clamps, the bearing portion having a cylindrical outer surface.

17. The cable cutter of claim 12 wherein a first bearing portion of the shank is located in the pivot opening of the movable clamp and a second bearing portion of the shank is located in the pivot opening of the stationary clamp, the first bearing portion has a first cylindrical outer surface having a first diameter, and the second bearing portion has a second cylindrical outer surface having a second diameter that is different than the first diameter.

18. The cable cutter of claim 12 wherein the movable clamp comprises an arcuately shaped rack having a plurality of teeth.

19. The cable cutter of claim 18 further comprising a motor operably connected to the rack by a gear transmission.

Assignees

• Klein Tools Inc

Inventors

• Kargenian John H
• Kim Peter D

Classifications

• B23D29/002 Primary

  for cutting wire or the like · CPC title

• B23D15/04

  having only one moving blade · CPC title

• B23D15/12

  characterised by drives or gearings therefor · CPC title

• B23D35/002

  Means for mounting the cutting members · CPC title

• B23D17/04

  actuated by a rotary shaft · CPC title