TENSIONING DEVICE
FIG12 is a cross-sectional view of the handle assembly and pulley wheel of FIG11 along the line B - B
The insert 90 includes opposite first and second faces 95, 96, as shown most clearly in FIG12. The insert 90 is located in the aperture 88 in the boss 86 such that the first face 95 is flush with a surface 98 of the boss 86. An annular sleeve 100 may extend from the second face 96 of the insert 90. This sleeve 100 may be sized to be received within the first hole 76 of the coupling member 66, such that the sleeve 100 is in contact with and lines a side wall of the hole 76.
cross-sectional view
28
spindle
30
aperture apertures
12
main body
80
raised guide area
98
surface
142
keeper
18
handle assembly
86
boss
100
sleeve
90
insert
89
side wall
134
first end
36
groove
144
spring
32
axis
['1. A tensioning device (10) for a horizontal lifeline comprising: a pulley (14) including a drive spindle (28) and a pulley wheel (14) connected to the drive spindle (28), said lifeline passing, in use, around the pulley wheel (14); a locking member (38) configured to engage, in use, with a part of said lifeline to prevent relative movement of the lifeline with respect to the locking member (38) in a first direction; and a handle assembly (18) connected to the drive spindle (28), the handle assembly (18) being moveable between a first, disengaged position in which rotation of the handle assembly (18) does not cause rotation of the drive spindle (28) and a second, engaged position in which rotation of the handle assembly (18) rotates the drive spindle (28), characterised in that : movement of the handle assembly (18) between the first and second positions is along an axis of the drive spindle (28), wherein the drive spindle (28) includes a drive shaft section (136) and in the first position the handle assembly (18) is engaged with the drive shaft section (136) and in the second position the handle assembly (18) is not engaged with the drive shaft section (136), and wherein rotation of the drive spindle (28) rotates the pulley (14) to move the lifeline in a second direction relative to the locking member (38), thereby tensioning the lifeline.', '5. A tensioning device as claimed in Claim 3 or Claim 4, wherein the arm (68) comprises an elongate member having a first end (104) and a second end (106), the arm (68) being pivotally connected to the coupling member (66) proximate the first end (104), and the second end (106) being further from the connection between the coupling member (66) and the drive spindle (28) when the arm (68) is in the second position than the first position and wherein the pulley (14) is mounted in a main body (12) of the device (10) and, when the arm (68) is in the second position, the second end (106) of the arm (68) extends beyond a perimeter of the main body (12).', '7. A tensioning device as claimed in any one of Claims 3 to 6, wherein one of the coupling member (66) and the arm (68) includes a detent (82) and the other one of the coupling member (66) and the arm (68) includes a stop surface (120,122), the detent (82) contacting the stop surface (120,122) to limit relative movement between the arm (68) and the coupling member (66) and wherein the detent (82) contacts the stop surface (120,122) when the arm (68) is in the second position.']