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US 12,109,606 B2Granted
Tapered transition pilot
AssigneeStandard Lifters, Inc.
InventorsScott M. Breen, Joel T. Pyper
Life of this patent
Estimating the term…
Abstract
A pilot assembly having a shaped portion and a shaped fastener relief for attachment to a die. The pilot assembly includes a fastener with a shaped washer that engages the shaped fastener relief to permit installation and removal of the pilot from the die. The shaped portion of the pilot assembly helps to locate and center the stock down the pilot assembly toward the die.
Claims20
A multi-station metal forming die having at least two mutually converging and diverging die members between which stock is shifted longitudinally to form parts from the stock, the improvement of a pilot assembly, comprising:
- a pilot operably supported on one of said die members and having an outer end oriented toward the stock, an oppositely disposed inner end oriented away from the stock, and a medial portion disposed axially between said outer and inner ends, and including:
- a shoulder portion disposed at said medial portion, having a first width;
- a body portion disposed at said inner end having a second width that is less than said first width of said shoulder portion to define a first shoulder therebetween;
- a generally tapered transition portion disposed at said outer end, including:
- an innermost portion disposed adjacent to said shoulder portion with a third width that is less than said first width of said shoulder portion to define a second shoulder therebetween for securing said pilot in an associated pilot mounting aperture in said one die member;
- and
- an outermost portion having a fourth width which is smaller than said third width;
- at least one fastener relief formed into said pilot;
- and
- at least one mounting fastener having an enlarged head portion that is at least partially received in said at least one fastener relief and a shank portion anchored in said one die member to securely mount said pilot on said one die member.
7 more elements
A pilot assembly for a metal forming die in which stock is formed into at least one part, comprising:
- a pilot operably supported on said metal forming die, having an outer end oriented toward the stock and an oppositely disposed inner end oriented away from the stock and a medial portion disposed axially between said outer and inner ends, and including:
- a shoulder portion disposed at said medial portion, having a first width;
- a body portion disposed at said inner end having a second width that is less than said first width of said shoulder portion to define a first shoulder therebetween;
- a generally tapered transition portion disposed at said outer end, including:
- an innermost portion disposed adjacent to said shoulder portion with a third width that is less than said first width of said shoulder portion to define a second shoulder therebetween for securing said pilot in an associated pilot mounting aperture in said one die member;
- and
- an outermost portion having a fourth width which is smaller than said third width;
- at least one shaped fastener relief formed into a portion of said body portion;
- at least one mounting fastener having an enlarged head portion that is anchored in said one die member to securely mount said pilot on said one die member;
- and
- at least one shaped washer that is received on said at least one mounting fastener, with a shaped surface that engages at least a portion of said shaped fastener relief.
8 more elements
A pilot assembly for engaging a hole in a stock, comprising:
- a pilot having an outer end oriented toward the stock, an oppositely disposed inner end oriented away from the stock, and a medial portion disposed axially between said outer and inner ends, and including:
- a shoulder portion disposed at said medial portion, having a first width;
- a body portion disposed at said inner end having a second width that is less than said first width of said shoulder portion to define a first shoulder therebetween;
- a transition portion disposed at said outer end, including:
- an innermost portion disposed adjacent to said shoulder portion with a third width that is less than said first width of said shoulder portion to define a second shoulder therebetween;
- and
- an outermost portion having a fourth width which is smaller than said third width;
- at least one fastener relief having a shaped portion formed into a portion of said pilot;
- and
- at least one mounting fastener with a shaped washer that engages said shaped portion of said at least one fastener relief.
7 more elements
Dependencies are inferred from the claim text.