Longitudinally guided cable slitting tool
a longitudinally guided and cable technology, applied in the field of slitting tools, can solve the problems of high risk of inadvertent penetration of the tunnel, high risk of bodily injury of the technician, and high risk of cutting friction, so as to prevent the loss of tools and reduce the friction of cutting
Inactive Publication Date: 2006-11-02
LARKIN KEVIN B
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- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Benefits of technology
The cable slitting tool is designed to cut a cable web longitudinally using a circular blade. The tool has guide rollers that fit into a groove on the cable's web and are pressed against it by a cutting edge on the blade. The guide rollers are held in a top body and the blade is held in a base body, which can be adjusted and tightened using a screw. The tool is aligned with the cable's groove and the blade's cutting edge when it penetrates the web. The slitting tool is easy to use and can maintain alignment during slitting. It can be attached to an operator to prevent tool loss. The technical effects of the cable slitting tool include improved alignment, reduced cutting friction, and increased safety against tool loss.
Problems solved by technology
Installation of aerial interduct cables often takes place under harsh conditions and under considerable time pressure.
Penetrating the web and slitting the tough web material takes considerable effort with a conventional knife or other primitive tools commonly used by technicians, bearing a high risk of bodily injury of the technician.
Another unfavorable side effect of using conventional slitting tools is a high risk of inadvertent penetration of the tunnel 15 which may need to be avoided to maintain the tight tunnel 15 leak-proof in case of a consecutive pressure air assisted insertion of optical fibers.
Method used
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[0016] As in FIGS. 2-7, a cable slitting tool 100 for slitting a cable 10 has at least one but preferably two guide rollers 160 rotating around their respective axes 162. Each of the guide rollers 160 has a roller circumference 161 fitting a groove 13 of a longitudinal web of the cable 10 such that the rollers 160 are guided along the respective groove 13 while the rollers 160 are pressed against that groove 13. The cable slitting tool 100 further includes a cutting feature 150 in the preferred configuration of a circular blade. The cutting feature 150 has a cutting edge 151 facing the roller circumferences 162.
[0017] The cutting edge 161 is preferably curved and planar. For the purpose of this invention, a cutting plane CP is defined as a plane coinciding with the cutting edge 161 and being substantially symmetric with respect to a well known blade angle at with a blade of the cutting feature 150 tapers towards the cutting edge 161. The cutting plane CP is substantially parallel w...
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Abstract
A cable slitting tool for longitudinally slitting the web of an aerial interduct cable has preferably two guide rollers fitting with their circumference into a groove of the cable's longitudinal web such that the rollers are guided along the groove while they are pressed against the groove by a circular blade penetrating the web from opposite side. The rollers are rotationally free held in a top body and the blade is held in a base body. Both bodies are slide ably adjustable and tightened with respect to each other by a screw. The bodies are held in alignment to each other and the blade's cutting edge is pointing in slitting direction with a wedge angle providing pressure contact between rollers and web groove during slitting. A sliding guide provides additional guidance against eventual roller run out in case of excessive cable bend.
Description
FIELD OF INVENTION [0001] The present invention relates to slitting tools for longitudinally slitting cables. Particularly, the present invention relates to slitting tools for slitting the longitudinal web connecting the strand with the duct of an aerial interduct cable. BACKGROUND OF INVENTION [0002] Cables having a strand and a duct are increasingly utilized in aerial applications where a multitude of wires and / or optical fibers need to be encapsulated and suspended between telephone poles. A cross section of a representative prior art aerial interduct cable 10 is shown in FIG. 1. The cable 10 conventionally features two cable profile portions 11, 12. The first cable profile portion 11 well known as the strand may encompass a suspension core 14, which may be a steel cable or the like. The second cable profile portion 12 well known as the duct may encompass a tunnel 15 for encapsulating conductive wires and / or optical fibers. The two profile portions 11, 12 are commonly combined vi...
Claims
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IPC IPC(8): B21F13/00
CPCH02G1/1217
Inventor LARKIN, KEVIN B.
Owner LARKIN KEVIN B