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US 12,325,079 B2Granted
Indexable piercing tip for demolition shears
AssigneeEpiroc Industrial Tools and Attachments LLC
InventorsKarl Johnson, Clayton Sederberg, Shane Bubacz, Matthew George Mecklin, Robert Laine Blettner
Life of this patent
Estimating the term…
Abstract
An indexable piercing tip mounts to a nose portion of one of the jaws of a heavy-duty demolition shears so as to enclose and protect top, bottom, front, and two opposing side surfaces of the nose portion during use of the shears. The piercing tip has a first operative position in which a first set of piercing and shearing edges of the piercing tip are presented for use. When the first set gets dull or worn, the piercing tip can be rotated/indexed 180° degrees so as to present a second set of piercing and shearing edges of the piercing tip for use.
Claims35
A demolition shears, comprising:
- a first jaw;
- a second jaw pivotally connected to the first jaw for pivotal movement relative to the first jaw about a jaw axis, the second jaw comprising:
- a jaw body with a nose portion, the nose portion having top, bottom, front, and two opposing side surfaces, wherein the front surface abuts the top surface and the bottom surface, wherein the top surface faces away from a bottom most edge of the nose portion, wherein the front surface is the frontmost surface on the jaw body, and wherein the bottom surface faces toward the first jaw, and
- an indexable piercing tip comprising first and second piercing edges and first and second shearing edges, the indexable piercing tip being selectively attachable to the nose portion in:
- (1) a first operative position in which the first piercing edge is presented for piercing use and the first shearing edge is presented for shearing use, or (2) a second operative position in which the second piercing edge is presented for piercing use and the second shearing edge is presented for shearing use,
- wherein, when the indexable piercing tip is in the first or second operative positions, the indexable piercing tip encloses a majority of the top surface, a majority of the bottom surface, a majority of the front surface, and a majority of at least one of the two opposing side surfaces, wherein the second operative position is a position in which the indexable piercing tip is rotated 180° relative to the first operative position,
- wherein the indexable piercing tip comprises a first body and a second body that sandwich the nose portion therebetween when the indexable piercing tip is in the first or second operative position.
4 more elements
An indexable piercing tip shaped and configured to be attached to a nose portion of a jaw of a demolition shears, wherein:
- the indexable piercing tip comprises a first body and a second body;
- the indexable piercing tip forms first and second piercing edges and first and second shearing edges;
- the indexable piercing tip is shaped and configured to be selectively attachable to the nose portion in:
- (1) a first operative position in which the first piercing edge is presented for piercing use, and the first shearing edge is presented for shearing use, or (2) a second operative position in which the second piercing edge is presented for piercing use and the second shearing edge is presented for shearing use;
- the first and second bodies are shaped and configured to sandwich the nose portion therebetween when the indexable piercing tip is in the first or second operative position;
- the indexable piercing tip is shaped and configured such that when the indexable piercing tip is in the first or second operative positions, the indexable piercing tip encloses a majority of a top surface of the nose portion, a majority of a bottom surface of the nose portion, a majority of a front surface of the nose portion, and a majority at least one of two opposing side surfaces of the nose portion, wherein the front surface abuts the top surface and the bottom surface, wherein the top surface faces away from a bottom most edge of the nose portion, and wherein the bottom surface faces toward the first jaw;
- and
- the second operative position is a position in which the indexable piercing tip is rotated 180° relative to the first operative position,
- wherein the piercing tip defines a cavity, wherein the cavity is shaped and sized such that the entire nose portion can be disposed within the cavity.
6 more elements
A demolition shears comprising:
- a first jaw;
- a second jaw pivotally connected to the first jaw for pivotal movement relative to the first jaw about a jaw axis, the second jaw comprising:
- a jaw body with a nose portion, the nose portion having top, bottom, front, and two opposing side surfaces, wherein the front surface abuts the top surface and the bottom surface, wherein the top surface faces away from a bottom most edge of the nose portion, and wherein the bottom surface faces toward the first jaw, and
- an indexable piercing tip comprising first and second piercing edges and first and second shearing edges, the indexable piercing tip being selectively attachable to the nose portion in:
- (1) a first operative position in which the first piercing edge is presented for piercing use and the first shearing edge is presented for shearing use, or (2) a second operative position in which the second piercing edge is presented for piercing use and the second shearing edge is presented for shearing use,
- wherein, when the indexable piercing tip is in the first or second operative positions, the indexable piercing tip encloses a majority of the top surface, a majority of the bottom surface, a majority of the front surface, and a majority of at least one of the two opposing side surfaces, wherein the second operative position is a position in which the indexable piercing tip is rotated 180° relative to the first operative position,
- wherein the indexable piercing tip comprises a first body and a second body that sandwich the nose portion therebetween when the indexable piercing tip is in the first or second operative position,
- wherein the piercing tip defines a cavity,
- wherein the entire nose portion is disposed within the cavity.
6 more elements
A demolition shears comprising:
- a first jaw;
- a second jaw pivotally connected to the first jaw for pivotal movement relative to the first jaw about a jaw axis, the second jaw comprising:
- a jaw body with a nose portion, the nose portion having top, bottom, front, and two opposing side surfaces, wherein the front surface abuts the top surface and the bottom surface, wherein the top surface faces away from a bottom most edge of the nose portion, and wherein the bottom surface faces toward the first jaw, and
- an indexable piercing tip comprising first and second piercing edges and first and second shearing edges, the indexable piercing tip being selectively attachable to the nose portion in:
- (1) a first operative position in which the first piercing edge is presented for piercing use and the first shearing edge is presented for shearing use, or (2) a second operative position in which the second piercing edge is presented for piercing use and the second shearing edge is presented for shearing use,
- wherein, when the indexable piercing tip is in the first or second operative positions, the indexable piercing tip encloses a majority of the top surface, a majority of the bottom surface, a majority of the front surface, and a majority of at least one of the two opposing side surfaces, wherein the second operative position is a position in which the indexable piercing tip is rotated 180° relative to the first operative position,
- wherein the indexable piercing tip comprises a first body and a second body that sandwich the nose portion therebetween when the indexable piercing tip is in the first or second operative position,
- wherein the top surface abuts each of the two opposing side surfaces and the front surface,
- wherein the bottom surface abuts each of the two opposing side surfaces and the front surface, and
- wherein the top, bottom, and two opposing side surfaces together define a complete loop around the nose portion.
7 more elements
A demolition shears comprising:
- a first jaw;
- a second jaw pivotally connected to the first jaw for pivotal movement relative to the first jaw about a jaw axis, the second jaw comprising:
- a jaw body with a nose portion, the nose portion having top, bottom, front, and two opposing side surfaces, wherein the front surface abuts the top surface and the bottom surface, wherein the top surface faces away from a bottom most edge of the nose portion, and wherein the bottom surface faces toward the first jaw, and
- an indexable piercing tip comprising first and second piercing edges and first and second shearing edges, the indexable piercing tip being selectively attachable to the nose portion in:
- (1) a first operative position in which the first piercing edge is presented for piercing use and the first shearing edge is presented for shearing use, or (2) a second operative position in which the second piercing edge is presented for piercing use and the second shearing edge is presented for shearing use,
- wherein, when the indexable piercing tip is in the first or second operative positions, the indexable piercing tip encloses a majority of the top surface, a majority of the bottom surface, a majority of the front surface, and a majority of at least one of the two opposing side surfaces, wherein the second operative position is a position in which the indexable piercing tip is rotated 180° relative to the first operative position,
- wherein the indexable piercing tip comprises a first body and a second body that sandwich the nose portion therebetween when the indexable piercing tip is in the first or second operative position,
- wherein the top and bottom surfaces face away from each other, and wherein the side surfaces face away from each other.
5 more elements
Dependencies are inferred from the claim text.