Hook and latch with lock

Claim 2

In combination: a hook having a shank and a lip spaced from the shank thereby forming a mouth opening, a latch for closing the mouth opening, means pivotAlly mounting the latch on the hook for selective movement of the latch to a closed position across the mouth opening and to an open position relative to the mouth opening, a locking member to prevent movement of the latch from the closed position to the open position, pivot means mounting the locking member on the latch for pivotal movement of the locking member to its locked position and to an unlocked position, guide means comprising pin means and a slot structure between the locking member and the latch coacting with the locking member and latch for directing the pivotal movement of the locking member, the upper ends of the slot structure having downwardly directed recesses for accommodating the pin means to hold the locking member in the unlocked position.

Claim 3

The combination of claim 1, wherein: the latch is a U-shaped member having sides positionable adjacent opposite sides of the shank and lip when the latch is in the closed position.

Claim 4

The combination of claim 2, wherein: the U-shaped member has a flat base with a recess in the outer end thereof to accommodate the lip.

Claim 5

The combination of claim 1, wherein: the latch is a U-shaped member and including biasing means located within the U-shaped member to yieldably hold the latch in the closed position.

Claim 6

The combination of claim 1, wherein: the latch is a U-shaped member and said means pivotally mounting the latch on the hook being located within the space between the sides of the U-shaped member.

Claim 7

The combination of claim 1, including: handle means located outside the latch and connected to the locking member to provide a visual indicator of the position of the locking member.

Claim 8

The combination of claim 1 wherein: the locking member includes a flat plate.

Claim 9

The combination of claim 1 wherein: one end portion of the latch is pivoted on the shank and the locking member is pivoted on the opposite end portion of the latch.

Claim 10

The combination of claim 1 wherein: the latch is a member having spaced sides located on opposite sides of the shank, said sides of the latch having holes to accommodate a pin to selectively hold the latch in an open position and a closed position.

Claim 11

In combination: a hook having a shank and a lip spaced from the shank thereby forming a mouth opening, a latch for closing the mouth opening, said latch comprising a generally U-shaped member having a base and sidewalls positionable adjacent opposite sides of the shank when the latch is in the closed position, means pivotally mounting the latch on a portion of the shank for selective movement of the latch to a closed position across the mouth opening and to an open position wherein the base is located adjacent the shank, a locking member located between the opposite sidewalls of the latch operable to prevent movement of the latch from the closed position to the open position, said locking member having an outer edge engageable with the portion of the shank when in the locked position to prevent pivotal movement of the latch to the open position, pivot means mounting the locking member on the outer portions of the sidewalls for selective pivotal movement of the locking member to a locked position and to an unlocked position, said sidewalls having upwardly directed slots spaced from the pivot axis of the locking member, pin means on the locking member positionable in said slots for directing the pivotal movement of the locking member from the locked position to the unlocked position to locate the locking member adjacent the base of the latch when it is in the unlocked position thereby allowing the latch to move away from the lip toward the shank.

Claim 12

In combination: a hook having a shank and a lip spaced from the shank thereby forming a mouth opening, a latch for closing the mouth opening, said latch comprising a generally U-shaped member having a base and sidewalls positionable adjacent opposite sides of the shank when the latch is in the closed position, means pivotally mounting the latch on a portion of the shank for selective movement of the latch to a closed position across the mouth opening and to an open position wherein the base is located adjacent the shank, a locking member located between the opposite sidewalls of the latch operable to prevent movement of the latch from the closed position to the open position, said locking member having an outer edge engageable with the portion of the shank when in the locked position to prevent pivotal movement of the latch to the open position, pivot means mounting the locking member on the outer portions of the sidewalls for selective pivotal movement of the locking member to a locked position and to an unlocked position, said sidewalls having upwardly directed slots spaced from the pivot axis of the locking member, pin means on the locking member positionable in said slots for directing the pivotal movement of the locking member from the locked position to the unlocked position to locate the locking member adjacent the base of the latch when it is in the unlocked position thereby allowing the latch to move away from the lip toward the shank.

Claim 13

The combination of claim 10 including: handle means connected to the pin means to provide a visual indication of the locked and unlocked positions of the locking member, said handle means being located adjacent the outside faces of the sidewalls of the latch.

Claim 14

The combination of claim 10 wherein: the sidewalls of the latch have holes to accommodate a piN to selectively hold the latch in an open position and in a closed position.

Claim 15

The combination of claim 10 wherein: the upper ends of the slots in the sides have downwardly directed recesses for accommodating the pin means to hold the locking member in the unlocked position.

Claim 16

The combination of claim 10 wherein: the base of the U-shaped latch has a recess at its outer end to accommodate opposite portions of the lip.