초록 ▼

A retractable lanyard mechanism that includes a housing, a frame and a drum that is rotatably supported from the frame mounted within the housing. The drum includes a pair of spaced apart disks, the spaced apart disks being attached to opposite ends of a spool, each spaced apart disk having a perime

A retractable lanyard mechanism that includes a housing, a frame and a drum that is rotatably supported from the frame mounted within the housing. The drum includes a pair of spaced apart disks, the spaced apart disks being attached to opposite ends of a spool, each spaced apart disk having a perimeter including at least one sperrad. A locking bar that is pivotally mounted from the frame, the locking bar extending from the frame at a location next the perimeter of each of the spaced apart disks and is movable from an up position wherein the locking bar does not engage the sperrad on each of the spaced apart disks, and a down position wherein the locking bar engages the sperrad on each of the disks, the locking bar mechanism being movable from the up position to the down position by a momentum pawl mechanism that is mounted from the frame, so that rotation of both of the spaced apart disks is stopped by moving the locking bar to the down position in response to a level of momentum achieved by the momentum pawl mechanism.

대표청구항 ▼

What is claimed is: 1. A retractable lanyard mechanism for use by a worker, the worker having a back and legs, comprising: a pair of retractable lanyards contained in a single housing, the housing has at least one pay out nozzle that cooperates with at least one guide that divides the pay out nozzl

What is claimed is: 1. A retractable lanyard mechanism for use by a worker, the worker having a back and legs, comprising: a pair of retractable lanyards contained in a single housing, the housing has at least one pay out nozzle that cooperates with at least one guide that divides the pay out nozzle and separating the lanyards, the nozzle allowing the retractable lanyards to be drawn or retracted from the housing, each retractable lanyard comprising: a drum that is rotatably supported from within said single housing, the drum holding the lanyard in a spooled manner on the drum, the drum being connected to a locking mechanism that locks the drum in response to a level of momentum achieved by the rotation of the drum, the locking mechanism comprising teeth on the drum and a pawl that pivots in response to sudden acceleration of the drum to engage at least one of the teeth on the drum to stop rotation of the drum, the rotation axis of the drum of each retractable lanyard being non-coaxial and generally parallel with the rotation axis of the drum of the other retractable lanyard and connected to a retraction spring, so that the lanyards are paid out in a parallel fashion to one another from a same side of each drum and are retracted by the retraction spring to take up slack in each lanyard; and a harness, the harness having a dorsal portion that is adapted for extending over worker's back and includes a set of leg straps, the single housing being pivotally supported from the dorsal portion of the harness allowing the at least one nozzle to point away from the leg straps such that the housing is positioned between the pair of retractable lanyards and the harness and so that the single housing lays over the back of the worker, away from the legs of the worker when the harness is worn by the worker and so that the single housing pays out lanyard away from the legs of the worker from the back of the worker in the event of a fall, and whereby the pair of retractable lanyards are supported from the harness, so that the location of one of the lanyards can be ascertained by tracing the other lanyard. 2. A retractable lanyard mechanism according to claim 1 and further comprising a snap hook that is attached to at least one of the pair of retractable lanyards, and wherein said single housing is positioned between the snap hook and the harness. 3. A retractable lanyard mechanism for use by a worker having a back and legs, the retractable lanyard mechanism comprising: a harness having a dorsal portion that is adapted for laying over the back of the worker when in use, the harness further comprising a set of leg straps; a pair of retractable lanyards contained in a single housing, the housing has at least one payout nozzle that cooperates with at least one guide that divides the payout nozzle and separating the lanyards, the payout nozzle allowing the retractable lanyards to be drawn or retracted from the housing, the single housing being pivotally attached to the dorsal portion of said harness, each retractable lanyard comprising: a drum that is rotatably supported within said single housing, the drum holding the lanyard in a spooled manner on the drum, the drum being connected to a locking mechanism that locks the drum in response to a level of rotational momentum achieved by the rotation of the drum, the locking mechanism comprising teeth on the drum and a pawl that pivots in response to sudden acceleration of the drum to engage at least one of the teeth on the drum to stop rotation of the drum, the rotation axis of the drum of each retractable lanyard being non-coaxial and generally parallel with the rotation axis of the drum of the other retractable lanyard and the lanyards extending from the housing such that the lanyards are paid out in a parallel fashion next to one another from a same side of each drum; and the housing including a link positioned between the drums and being mounted from the dorsal portion of the harness, the payout nozzle of the housing being between the link and the two lanyards, so that the single housing with the pair of retractable lanyards is supported from the dorsal portion of the harness, and so that the location of one of the lanyards can be ascertained by tracing the other lanyard when the housing is supported from the harness, and so that the lanyards support the worker from the dorsal portion of the harness so that the support of the worker is accomplished from the back of the worker and so that the link allows single housing to pivot away from the back of the worker to point away from the legs of the worker in the even of a fall. 4. A retractable lanyard mechanism for use by a worker, the worker having a back, the retractable lanyard mechanism comprising: a harness having a dorsal portion that is adapted for laying over the back of the worker when in use, the harness further comprising a set of leg straps; a support frame supporting a pair of retractable lanyards contained in a single housing, the housing has at least one payout nozzle that cooperates with at least one guide that divides the payout nozzle and separating the lanyards, the nozzle allowing the retractable lanyards to be drawn or retracted from the housing, the support frame including a link that retains the support frame pivotally attached to said dorsal portion of said harness, each retractable lanyard comprising: a drum that is rotatably supported within said single housing, the drum holding the lanyard in a spooled manner on the drum, the drum being connected to a locking mechanism that locks the drum in response to a level of rotational momentum achieved by the rotation of the drum, the locking mechanism comprising teeth on the drum and a pawl that pivots in response to sudden acceleration of the drum to engage at least one of the teeth on the drum to stop rotation of the drum, the rotation axis of the drum of each retractable lanyard being non-coaxial and generally parallel with the rotation axis of the drum of the other retractable lanyard and each lanyard extending from the housing such that the lanyards are paid out in a parallel fashion next to one another from a same side of each drum from the frame support; and so that the single housing is supported from a location between the pair of retractable lanyards while the housing is supported directly from the dorsal portion of the harness and so that the link allows single housing to pivot up, away from the back of the worker with at least one lanyard pointing away from the legs of the worker in the event of a fall.