Bolt cutter

Patent metadata

Field	Value
Publication number	US-11090822-B2
Application number	US-201916436563-A
Country	US
Kind code	B2
Filing date	Jun 10, 2019
Priority date	Dec 10, 2015
Publication date	Aug 17, 2021
Grant date	Aug 17, 2021

Abstract

A cutter including a cutting head and an adjustable handle pivotally coupled to the cutting head. The adjustable handle includes a first adjustment assembly to change a length the adjustable handle extends from the cutting head. The adjustable handle also includes a second adjustment assembly to change the position of the adjustable handle with respect to the cutting head.

First claim

What is claimed is:

1. A bolt cutter comprising:
a bolt cutting head comprising a first bore, wherein the bolt cutting head includes a first bolt cutting blade and a second bolt cutting blade;
a handle assembly pivotally coupled to the bolt cutting head, the handle assembly comprising a second bore;
an angle adjustment assembly configured to change a position of the handle assembly with respect to the bolt cutting head without imparting motion to the bolt cutting head;
an axis defined by the first bore and the second bore, the handle assembly pivots about the axis with respect to the bolt cutting head;
the angle adjustment assembly comprising a plunger received within the first bore and the second bore; and
wherein the bolt cutting head further comprises a compound hinge, wherein the compound hinge includes a first link pivotally coupled to the first bolt cutting blade and a second link pivotally coupled to the second bolt cutting blade.

2. The bolt cutter of claim 1 , wherein the plunger is movable along the axis between a locked position in which the handle assembly is fixed with respect to the first bore and an unlocked position in which the handle assembly is movable with respect to the first bore.

3. The bolt cutter of claim 2 , wherein the plunger is biased towards the locked position.

4. The bolt cutter of claim 2 , wherein the first bore comprises a first plurality of teeth, the second bore comprises a second plurality of teeth, and the plunger comprises a toothed section that engages with the first plurality of teeth and the second plurality of teeth.

5. The bolt cutter of claim 4 , wherein, when the plunger is in the locked position, the toothed section engages both the first plurality of teeth and the second plurality of teeth, and when the plunger is in the unlocked position, the toothed section is disengaged from the first plurality of teeth.

6. The bolt cutter of claim 5 , wherein the toothed section of the plunger comprises a first toothed section and a second toothed section, and the plunger further defines a tooth-less section axially between the first toothed section and the second toothed section.

7. The bolt cutter of claim 6 , wherein the angle adjustment assembly further comprises a first flange and a second flange, and the first bore is located in the first flange and in the second flange, the first plurality of teeth extending inwardly from the first flange and the second flange;
wherein, when the plunger is in the locked position, the first toothed section engages the first plurality of teeth extending from the first flange and the second toothed section engages the first plurality of teeth extending from the second flange; and
wherein, when the plunger is in the unlocked position, the tooth-less section of the plunger is axially aligned with the first plurality of teeth in the second flange.

8. The bolt cutter of claim 2 , wherein, the handle assembly is pivotable with respect to the first bore over an angular range of at least 270 degrees.

9. The bolt cutter of claim 1 , wherein
the first link is pivotally coupled to the first bolt cutting blade about a first pivot axis defined by a first fastener;
the first link is pivotally coupled to the second link about a second pivot axis defined by a second fastener; and
the second link is pivotally coupled to the second bolt cutting blade about a third pivot axis defined by a third fastener.

10. A cutter comprising:
a cutting head comprising a compound hinge;
an adjustable handle assembly pivotally coupled to the cutting head;
a first adjustment assembly to change a length the adjustable handle assembly extends from the cutting head; and
a second adjustment assembly to change a position of the adjustable handle assembly with respect to the cutting head, the second adjustment assembly is movable between a locked position in which the adjustable handle assembly is fixed with respect to the compound hinge and an unlocked position in which the adjustable handle assembly is movable with respect to the compound hinge without imparting motion to the cutting head;
wherein the compound hinge further comprises a first link pivotally coupled to a first cutting blade of the cutting head and a second link pivotally coupled to a second cutting blade of the cutting head.

11. The cutter of claim 10 , wherein the second adjustment assembly further comprises a biasing element to bias the second adjustment assembly toward the locked position.

12. The cutter of claim 10 , wherein the adjustable handle assembly includes a handle bore and the compound hinge includes a hinge bore, and wherein the handle bore and the hinge bore define an axis about which the adjustable handle assembly pivots with respect to the compound hinge.

13. The cutter of claim 12 , wherein the second adjustment assembly comprises a plunger received within the handle bore and the hinge bore.

14. The cutter of claim 13 , wherein the plunger comprises a toothed section, and the handle bore and the hinge bore each comprise a plurality of teeth that engage with the toothed section.

15. The cutter of claim 14 , wherein when the second adjustment assembly is in the locked position, the toothed section of the plunger engages the plurality of teeth of the handle bore and the plurality of teeth of the hinge bore, and when the second adjustment assembly is in the unlocked position, the toothed section of the plunger disengages the plurality of teeth of the hinge bore.

16. The cutter of claim 10 , wherein the adjustable handle assembly is pivotable with respect to the cutting head over an angular range of at least 270 degrees.

17. A bolt cutter comprising:
a bolt cutting head comprising a compound hinge;
a first handle pivotally coupled to the bolt cutting head, a first adjustment assembly configured to change an angular position of the first handle with respect to the bolt cutting head without imparting motion to the bolt cutting head;
a second handle pivotally coupled to the bolt cutting head, a second adjustment assembly configured to change an angular position of the second handle with respect to the bolt cutting head without imparting motion to the bolt cutting head; and
wherein the compound hinge further comprises a first link pivotally coupled to a first bolt cutting blade of the bolt cutting head and a second link pivotally coupled to a second bolt cutting blade of the bolt cutting head.

18. The bolt cutter of claim 17 , wherein the first adjustment assembly is movable between a locked position in which the first handle is not adjustable with respect to the bolt cutting head and an unlocked position in which the first handle is adjustable with respect to the bolt cutting head without imparting motion to the bolt cutting head, and wherein the second adjustment assembly is movable between a locked position in which the second handle is not adjustable with respect to the bolt cutting head and an unlocked position in which the second handle is adjustable with respect to the bolt cutting head without imparting motion to the bolt cutting head.

19. The bolt cutter of claim 17 , wherein the first adjustment assembly further comprises a first plunger that engages with the first handle, the first plunger is axially movable between a locked position in which the first handle is not adjustable with respect to the bolt cutting head and an unlocked position in which the first handle is adjustable with respect to the bolt cutting head without imparting motion to the bolt cutting head; and
wherein the second adjustment ass

Assignees

• Milwaukee Electric Tool Corp

Inventors

• Feuerstein Jacob
• Hoppe Christopher S
• Graykowski Anthony S
• Li Cheng Zhang

Classifications

• B26B17/02 Primary

  with jaws operated indirectly by the handles, e.g. through cams or toggle levers · CPC title

• B25G1/04

  telescopic; extensible; sectional · CPC title

• B25G1/066

  the grip itself being angularly adjustable · CPC title

• B25G1/043

  for screwdrivers, wrenches or spanners · CPC title

• B25G1/06

  reversible or adjustable for position · CPC title