Rope grab

摘要

A rope grab for a vertical fall protection system is provided. The rope grab includes a housing with an elongated member passage. The elongated member passage is configured to receive an elongated member. A locking cam is pivotally coupled to the housing and selectively engages an elongated member received in the elongated member passage. A cam biasing member positioned to provide a relatively slight biasing force on the locking cam in a direction towards an elongated member received in the elongated member passage. A locking arm, pivotally coupled to the housing, has a first end that is configured to be coupled to a safety harness of a user and a second end that selectively engages the locking cam to lock the locking cam on an elongated member in the elongated member passage during a fall event.

主权项

1. A rope grab comprising:
a housing having an elongated member guide forming an elongated member passage, the elongated member passage configured and arranged to receive an elongated member; a locking cam pivotally coupled to the housing, the locking cam configured and arranged to selectively engage an elongated member received in the elongated member passage; a cam biasing member positioned to provide a relatively slight biasing force on the locking cam towards an elongated member received in the elongated member passage, the relatively slight biasing force being countered by gravity during normal operations of the rope grab to allow the rope grab to move both up and down on the elongated member without the locking cam locking onto the elongated member during normal operations; and a locking arm pivotally coupled to the housing, the locking arm having a first end configured and arranged to be coupled to a safety harness of a user and a second end configured and arranged to selectively engage the locking cam to selectively lock the locking cam onto the elongated member in the elongated member passage during a fall event; a rotating side plate pivotally coupled to the housing to selectively block a side opening to the elongated member passage of the housing, at least one lever; and a lock member coupled to rotate in response to the rotation of the at least one lever, the lock member configured and arranged to selectively engage the rotating side plate to lock the rotating side plate in a static position in relation to the housing to selectively block at least a portion of the side opening to the elongated passage.