Trailer coupling pin lock collar

Claim 2

In a lock collar construction for trailer coupling pins; the combination of: a collar having a generally vertical opening therein receivable upwardly telescoping a downwardly projecting trailer coupling pin having a generally horizontally circumscribing annular recess; a U-shaped keeper having leg portions received into said collar slidable between pin engaging and disengaging positions, said keeper leg portions in said pin engaging position spanning opposite portions of said collar opening through opposite portions of said pin recess retaining said collar telescoping said pin, and in said pin disengaging position being withdrawn free of said pin; locking bar means internally oF said collar movable between a keeper securing and a keeper non-securing position, said locking bar means in said keeper securing position engaging at least one of said keeper leg portions in said keeper pin engaging position and retaining said keeper in said pin engaging position, said locking bar means in said keeper non-securing position permitting sliding of said keeper between said pin engaging and disengaging positions; actuating means operably connected to said locking bar means operable for selectively moving said locking bar means between its keeper securing and non-securing positions, said actuating means including lock means for locking said locking bar means in said keeper securing position.

Claim 3

In a lock collar construction as defined in claim 1 in which said locking bar means in said keeper securing position transversely engages both of said keeper leg portions in said keeper pin engaging position.

Claim 4

In a lock collar construction as defined in claim 1 in which said locking bar means is movable internally of said collar endwise between said keeper securing and keeper non-securing positions, said locking bar means in said keeper securing position transversely engaging endwise through slots formed in said keeper leg portions when said keeper is in said pin engaging position, said locking bar means at one end thereof being transversely withdrawn from one of said keeper leg portions when in said keeper non-securing position, said locking bar means having slot means formed therein aligned with the other of said keeper leg portions and permitting free movement of said keeper other leg portion therethrough between said keeper pin engaging and disengaging positions when said locking bar means is in said keeper non-securing position.

Claim 5

In a lock collar construction as defined in claim 1 in which said locking bar means is movable internally of said collar endwise between said keeper securing and keeper non-securing positions, said locking bar means in said keeper securing position transversely engaging endwise through slots formed in said keeper leg portions when said keeper is in said pin engaging position, said locking bar means at one end thereof being transversely withdrawn from one of said keeper leg portions when in said keeper non-securing position, said locking bar means having slot means formed therein aligned with the other of said keeper leg portions and permitting free movement of said keeper other leg portion therethrough between said keeper pin engaging and disengaging positions when said locking bar means is in said keeper non-securing position; and in which said keeper other leg portion has a flat thereon extending lengthwise thereof interfaced with a flat of said locking bar means groove when said locking bar means is in said keeper non-securing position, said keeper other leg portion flat extending lengthwise of said keeper other leg portion a determined distance permitting said keeper sliding between said pin engaging and disengaging positions, said keeper other leg portion flat terminating short of a free extremity of said keeper other leg portion with said keeper other leg portion extremity engaging said locking bar means upon sliding of said keeper to said pin disengaging position preventing complete withdrawal of said keeper from said collar.

Claim 6

In a lock collar construction as defined in claim 1 in which said actuating means includes a pivotal cam bar operably engaged with said locking bar means and pivotal to move said locking bar means between its keeper securing and non-securing positions.

Claim 7

In a lock collar construction as defined in claim 1 in which said actuating means includes said lock means having a rotatable lock cylinder, a cam bar operably connected to said lock means cylinder pivotal thereby, said cam bar having an end part operably engaged with said locking bar means and moving said locking bar means between said locking bar means keeper securing and non-securing positions during pivoting of said cam bar by said lock means cylinder.

Claim 8

In a lock collar construction as defined in claim 1 in which said locking bar means in said keeper securing position transversely engages both of said keeper leg portions in said keeper pin engaging position; and in which said actuating means includes a pivotal cam bar operably engaged with said locking bar means and pivotal to move said locking bar means between its keeper securing and non-securing positions.

Claim 9

In a lock collar construction as defined in claim 1 in which said locking bar means in said keeper securing position transversely engages both of said keeper leg portions in said keeper pin engaging position; and in which said actuating means includes said lock means having a rotatable lock cylinder, a cam bar operably connected to said lock means cylinder pivotal thereby, said cam bar having an end part operably engaged with said locking bar means and moving said locking bar means between said locking bar means keeper securing and non-securing positions during pivoting of said cam bar by said lock means cylinder.

Claim 10

In a lock collar construction as defined in claim 1 in which said locking bar means is movable internally of said collar endwise between said keeper securing and keeper non-securing positions, said locking bar means in said keeper securing position transversely engaging endwise through slots formed in said keeper leg portions when said keeper is in said pin engaging position, said locking bar means at one end thereof being transversely withdrawn from one of said keeper leg portions when in said keeper non-securing position, said locking bar means having slot means formed therein aligned with the other of said keeper leg portions and permitting free movement of said keeper other leg portion therethrough between said keeper pin engaging and disengaging positions when said locking bar means is in said keeper non-securing position; and in which said actuating means includes said lock means having a rotatable lock cylinder, a cam bar operably connected to said lock means cylinder pivotal thereby, said cam bar having an end part operably engaged with said locking bar means and moving said locking bar means between said locking bar means keeper securing and non-securing positions during pivoting of said cam bar by said lock means cylinder.

Claim 11

In a lock collar construction as defined in claim 1 in which said locking bar means is movable internally of said collar endwise between said keeper securing and keeper non-securing positions, said locking bar means in said keeper securing position transversely engaging endwise through slots formed in said keeper leg portions when said keeper is in said pin engaging position, said locking bar means at one end thereof being transversely withdrawn from one of said keeper leg portions when in said keeper non-securing position, said locking bar means having slot means formed therein aligned with the other of said keeper leg portions and permitting free movement of said keeper other leg portion therethrough between said keeper pin engaging and disengaging positions when said locking bar means is in said keeper non-securing position; and in which said keeper other leg portion has a flat thereon extending lengthwise thereof interfaced with a flat of said locking bar means groove when said locking bar means is in said keeper non-securing position, said keeper other leg portion flat extending lengthwise of said keeper other leg portion a determined distance permitting said keeper sliding between said pin engaging and disengaging positions, said keeper other leg portion flat terminating short of a free extremity of said keeper other leg portion with said keeper other leg portion extremity engaging said locking bar means upon sliding of said keeper to said pin disengaging position preventing complete withdrawal of said keeper from said collar.