Browse Prior Art Database

ZERO LAX DRIVE CABLE ASSEMBLY

IP.com Disclosure Number: IPCOM000030370D
Publication Date: 2004-Aug-08
Document File: 3 page(s) / 146K

Publishing Venue

The IP.com Prior Art Database

Abstract

A cable assembly is provided having a cable shaft that has a polygonal-shaped tip which fits into an similar polygonal-shaped opening providing reduced looseness and reduced noise upon operation. The cable assembly included the cable shaft and a tip of the shaft such that the tip of the shaft with a pattern of interference features may be inserted into a similarly-shaped opening with an amount of clearance between the cable and mating opening to provide the necessary interference for ease of assembly and for reduced costs by providing no other interference features than features on the tip. Preferably, the cable assembly is mated with a drive motor having similarly-shaped opening to the tip of the cable assembly and to an end device at opposite end of cable assembly having similarly-shaped opening.

This text was extracted from a PDF file.
At least one non-text object (such as an image or picture) has been suppressed.
This is the abbreviated version, containing approximately 52% of the total text.

Page 1 of 3

ZERO LAX DRIVE CABLE ASSEMBLY

         A cable assembly is provided having a cable shaft that has a polygonal-shaped tip which fits into an similar polygonal-shaped opening providing reduced looseness and reduced noise upon operation. The cable assembly included the cable shaft and a tip of the shaft such that the tip of the shaft with a pattern of interference features may be inserted into a similarly- shaped opening with an amount of clearance between the cable and mating opening to provide the necessary interference for ease of assembly and for reduced costs by providing no other interference features than features on the tip. Preferably, the cable assembly is mated with a drive motor having similarly-shaped opening to the tip of the cable assembly and to an end device at opposite end of cable assembly having similarly-shaped opening.

         It is known to provide a cable shaft assembly that mates with a drive motor and end device. It is also known to provide a cable shaft with a tip having an amount of clearance between the cable and mating opening for ease of assembly. Providing this mating system is advantageous because it allows the drive motor to provide torque through the cable assembly.

         It is well known that the clearance is necessary for ease of assembly and requires an amount of interference such that the interference features are compressed during assembly of the cable into the drive motor opening. This is advantageous for providing ease of assembly. The cable assembly is fitted into the mating opening of the drive motor with the necessary clearance for easy entry into the mating opening, while providing interference features which stop the further insertion of the cable shaft. Such systems generally create a problem with looseness between the cable assembly and the opening of the drive motor.

         It is known that laxness (looseness) between the cable assembly and the drive motor opening is a significant source of noise. It is also well known to provide interference features which reduce the laxness between the cable assembly and the opening of the drive motor. It is advantageous to provide interference features to reduce the laxness which reduces noise.

         Referring to FIGURE 1, there is shown a cable assembly 1 as a semi-rigid cable assembly configured to have a shaft 3 and a tip 4. The cable assembly 1 is preferably configured for use in transferring torque from a drive motor 12 to an end device 15 (shown in FIGURE 3).

         A tip 4 is a connected to shaft 3 through a transition zone 10 which reduces the thickness of shaft 3. Tip 4 has a tip end 16 having a planar surface perpendicular to the length of shaft 3. Tip 4 is designed to reduce in thickness from transition zone 10 to tip end 16 (shown in FIGURE 1).

         Tip 4 contains round protrusion on end 9, second round protrusion 7, third round protrusion 8, and fourth round protrusion 6. Round protrusions 9, 7, 8, and 6, are hemispherical shaped and protrude above the surface of tip 4. End round pr...