MECHANICAL DESCRIPTION:
The design of the "Ladder Extender" is that of a device which attaches to
a standard extension ladder, allowing the ladder to be secured to a tree
or rested against the exterior of any building or structure.
SUGGESTED MATERIALS AND
COMPONENTS:
Extruded steel or aluminum metal(s), rubber, springs, locking pins, bolts,
and locknuts.
AVAILABILITY OF
MATERIALS:
Good availability. Note to Manufacturer-Raw materials such as metal and
fastening hardware may be substituted by you, the manufacturer. It may be
entirely possible to use your current stockpile of materials to create a
test production run of the "Ladder Extender".
BEST-SUGGESTED METHOD
OF MFG:
Metal Stamping/Punching (overall frame), a process that involves a male
and female die, both are machined into the shape of the desired finished
product. The die are made of hardened tool steel, and are place in the
jaws of a hydraulic press.
Broad Estimate of
Tooling Cost:
$8,000.00 to
$12,000.00
Estimated Time To
Fabricate Tooling:
2 to 3 months.
Tooling Skill Level
Requirements:
High skill
level required, but easily available.
SECONDARY METHOD OF
MFG.: The
small sectional weld mount components of the "Ladder Extender" may be best
manufactured using conventional cut and weld techniques which are standard
and commonplace. Conventional steel or aluminum is cut to proper length or
shape using a torch or metal cutting band saw. A tabletop jig is used to
hold the pre-cut metal pieces in accurate alignment for welding.
