Cable sleeve
A cable sleeve comprises a housing, a locking cam, and a locking pawl. The housing has an elongate member passage configured to slidably receive an elongate member and has a cavity. The locking cam and the locking pawl are pivotally connected to the housing within the cavity. The locking cam has a radial edge with a constant radius relative to a pivot connection between the locking cam and the housing and is configured to move from a first cam position to a second cam position configured to engage the elongate member in the elongate member passage with the radial edge. The locking pawl is configured to move from a first pawl position to a second pawl position configured to move the locking cam into the second cam position to engage the elongate member.
1 . A cable sleeve, comprising:
a housing having a cavity and an elongate member passage, the cavity and the elongate member passage being in fluid communication, the elongate member passage configured and arranged to slidably receive an elongate member;
a locking cam pivotally connected to the housing within the cavity, the locking cam having a radial edge with a constant radius relative to a pivot connection between the locking cam and the housing, the locking cam configured and arranged to move from a first cam position to a second cam position, the second cam position configured and arranged to engage the elongate member received in the elongate member passage with the radial edge; and
a locking pawl pivotally connected to the housing within the cavity, the locking pawl configured and arranged to move from a first pawl position to a second pawl position, the second pawl position configured and arranged to move the locking cam into the second cam position to engage the elongate member received in the elongate member passage; and
a locking arm pivotally connected to the housing, the locking arm having a first end configured and arranged to be coupled to a safety harness and a second end configured and arranged to selectively engage the locking cam, the locking arm having a first arm position and a second arm position, the second arm position configured and arranged to engage the looking cam and move the locking cam into the second cam position to engage the elongate member received in the elongate member passage.
2 . The cable sleeve of claim 1 , wherein the locking pawl has a weighted side configured and arranged to keep the locking pawl in the first pawl position during normal use.
3 . The cable sleeve of claim 2 , further comprising a pawl biasing member interconnecting the locking pawl and the housing, the pawl biasing member configured and arranged to bias the locking pawl toward the second pawl position during a fall event.
4 . The cable sleeve of claim 3 , wherein the locking pawl is weight biased into the first pawl position in which the pawl biasing member does not place a biasing force on the locking pawl during normal use.
5 . The cable sleeve of claim 4 , wherein during a fall event the locking pawl moves from the first pawl position toward the second pawl position and the pawl biasing member then exerts a biasing force on the locking pawl to bias the locking pawl toward the second pawl position.
6 . The cable sleeve of claim 1 , wherein the locking cam engages the elongate member when at least one of the locking pawl and the locking arm engages the locking cam.
7 . The cable sleeve of claim 1 , wherein the locking arm includes an energy absorber.
8 . The cable sleeve of claim 1 , wherein the elongate member is selected from the group consisting of a cable and a rope.
9 . The cable sleeve of claim 8 , wherein the elongate member has a diameter from 8 to 10 cm.
10 . A cable sleeve, comprising:
a housing having a cavity and an elongate member passage, the cavity and the elongate member passage being in fluid communication, the elongate member passage configured and arranged to slidably receive an elongate member;
a locking cam pivotally connected to the housing within the cavity, the locking cam configured and arranged to move from a first cam position to a second cam position, the second cam position configured and arranged to engage the elongate member received in the elongate member passage with a radial edge;
a locking pawl pivotally connected to the housing within the cavity, the locking pawl configured and arranged to move from a first pawl position to a second pawl position, the locking pawl having a weighted side configured and arranged to keep the locking pawl in the first pawl position during normal use, the second pawl position configured and arranged to engage the locking cam and move the locking cam toward the elongate member passage against the elongate member during a fall event; and
further comprising a locking arm pivotally connected to the housing, the locking arm having a first end configured and arranged to be coupled to a safety harness and a second end configured and arranged to selectively engage the locking cam, the locking arm having a first arm position and a second arm position second a position configured and arranged to engage the locking cam and move the locking cam into the second cam position to engage the elongate member received in the elongate member passage.
11 . The cable sleeve of claim 10 , wherein the radial edge has a constant radius relative to a pivot connection between the locking cam and the housing.
12 . The cable sleeve of claim 10 , further comprising a pawl biasing member interconnecting the locking pawl and the housing, the pawl biasing member configured and arranged to bias the locking pawl toward the second pawl position during a fall event.
13 . The cable sleeve of claim 12 , wherein the locking pawl is weight biased into the first pawl position in which the pawl biasing member does not place a biasing force on the locking pawl during normal use.
14 . The cable sleeve of claim 13 , wherein during a fall event the locking pawl moves from the first pawl position toward the second pawl position and the pawl biasing member then exerts a biasing force on the locking pawl to bias the locking pawl toward the second pawl position.
15 . The cable sleeve of claim 10 , wherein the locking cam engages the elongate member when at least one of the locking pawl and the locking arm engages the locking cam.
16 . A cable sleeve, comprising:
a housing having a cavity and an elongate member passage, the cavity and the elongate member passage being in fluid communication; the elongate member passage configured and arranged to slidably receive an elongate member;
a locking cam pivotally connected to the housing within the cavity, the locking cam configured and arranged to move from a first cam position to a second cam position, the second cam position configured and arranged to engage the elongate member received in the elongate member passage with a radial edge;
a passive locking mechanism, comprising:
a locking pawl pivotally connected to the housing within the cavity, the locking pawl configured and arranged to move from a first pawl position to a second pawl position, the locking pawl having a weighted side configured and arranged to keep the locking pawl in the first pawl position during normal use, the second pawl position configured and arranged to engage the locking cam and move the locking cam toward the elongate member passage against the elongate member during a fall event;
an active locking mechanism, comprising:
a locking arm pivotally connected to the housing, the locking arm having a first end configured and arranged to be coupled to a safety harness and a second end configured and arranged to selectively engage the locking cam, the locking arm having a first arm position and a second arm position, the second arm position configured and arranged to engage the locking cam and move the locking cam into the second cam position to engage the elongate member received in the elongate member passage;
wherein the locking cam engages the elongate member when at least one of the locking pawl and the locking arm engages the locking cam.
17 . The cable sleeve of claim 16 , further comprising a pawl biasing member interconnecting the locking pawl and the housing, the pawl biasing member configured and arranged to bias the locking pawl toward the second pawl position during a fall event.
18 . The cable sleeve of claim 17 , wherein the locking pawl is weight biased into the first pawl position in which the pawl biasing member does not place a biasing force on the locking pawl during normal use, wherein during a fall event the locking pawl moves from the first pawl position toward the second pawl position and the pawl biasing member then exerts a biasing force on the locking pawl to bias the locking pawl toward the second pawl position.