Locking pin for excavating equipment
First Claim
1. A locking pin for joining together parts by insertion of said locking pin into aligned locking apertures, said locking pin comprising:
- a first rigid member having a first body portion and arms formed on each end of said first body portion, each of said arms having a recess such that said recesses face one another and are defined by locking abutments at their ends and lateral sides;
a second rigid member having a second body portion and tabs formed on each end of said second body portion, said tabs being adapted for insertion into said recesses to bear against said locking abutments when said second member is assembled to said first member, said first body portion being spaced away from said second body portion to define a space therebetween; and
an elastomer member having locking tabs formed on each end of said elastomer member, said elastomer member interposed in said space between said first member and said second member, and said locking tabs being adapted to be inserted into said recesses such that said first member, said second member and said elastomer member are firmly locked together.
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Accused Products
Abstract
An improved locking pin for locking together two pieces of equipment through aligned locking apertures. The pin comprises a steel casing, a steel insert and an elastomer member. The two steel parts assemble together in a particular sequence and are adjusted so that when completely assembled, the insert is locked into the casing with the body of the casing and the insert being parallel and spaced from one another. The elastomer member is interposed in the space defined between the casing and insert, and fills the space between the steel parts. The assembled steel parts are firmly locked together by introduction of the elastomer member into that space. There is no adhesive joining the steel and elastomer members which makes the pin more amenable for use in corrosive environments and also eases manufacture of the pin components. A tightly constructed locking pin also avoids the problems of the components becoming loose or lost.
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Citations
22 Claims
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1. A locking pin for joining together parts by insertion of said locking pin into aligned locking apertures, said locking pin comprising:
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a first rigid member having a first body portion and arms formed on each end of said first body portion, each of said arms having a recess such that said recesses face one another and are defined by locking abutments at their ends and lateral sides; a second rigid member having a second body portion and tabs formed on each end of said second body portion, said tabs being adapted for insertion into said recesses to bear against said locking abutments when said second member is assembled to said first member, said first body portion being spaced away from said second body portion to define a space therebetween; and an elastomer member having locking tabs formed on each end of said elastomer member, said elastomer member interposed in said space between said first member and said second member, and said locking tabs being adapted to be inserted into said recesses such that said first member, said second member and said elastomer member are firmly locked together. - View Dependent Claims (2, 3, 4, 5)
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6. A casing for a locking pin assembly comprising:
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a longitudinal body portion; and laterally extending arms provided at the ends of said body portion defining exterior portions and interior portions, each of said arms having an assembly recess provided on the interior portion thereof for receiving tabs of an insert member, each said recess defined by a locking abutment at the free end of said arm and lateral sides, so as to constrain movement of the insert member relative to said casing in all directions except toward and away from one another. - View Dependent Claims (7, 8)
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9. A rigid insert component for a locking pin assembly, said insert adapted for assembly into a rigid casing, said insert comprising:
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a longitudinal body portion including an engagement structure disposed along said body portion for engaging an elastomer component of the locking pin assembly; and insert tabs formed on each end of said body portion, said insert tabs being adapted for insertion into corresponding recesses of the casing to constrain said insert both vertically and laterally with respect to the casing. - View Dependent Claims (10)
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11. A locking pin for joining together parts by insertion of said locking pin into aligned locking apertures, said locking pin comprising:
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a first rigid member having a body extending in a longitudinal direction and including a first assembly structure; a second rigid member having a body extending in the longitudinal direction and including a second assembly structure, said second rigid member assembled to said first rigid member and constrained in the longitudinal direction and in first and second lateral directions with respect to said first rigid member by cooperation of said first assembly structure with said second assembly structure; and an elastomer member interposed between said first member and said second member to resiliently bias said first and second rigid members apart. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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Specification