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Molded Split Insulator for Mn-Zn Sliders

IP.com Disclosure Number: IPCOM000038813D
Original Publication Date: 1987-Mar-01
Included in the Prior Art Database: 2005-Feb-01
Document File: 2 page(s) / 25K

Publishing Venue

IBM

Related People

Balster, CH: AUTHOR [+4]

Abstract

An unconventional injection-molded insulator for the corepiece of MnZn ferrite slider (recording head) is described. The features of this molded insulator are that it locks onto the corepiece and covers the sharp edges of the ferrite core. The purpose of the insulator is to prevent the copper wires of the coil from making contact with the fer (Image Omitted) rite corepiece. Without the use of an insulator this can occur frequently due to the copper wire's own insulation being stripped off or nicked while the coil is being wound onto the corepiece. The one-piece injection-molded insulator and runner, shown as top and side views in Fig. 1, has three distinct portions: the left half insulator 1, the hinged runner 2 and the right half insulator 3. In Fig. 2, there is a front and back view of one of the half insulators.

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Molded Split Insulator for Mn-Zn Sliders

An unconventional injection-molded insulator for the corepiece of MnZn ferrite slider (recording head) is described. The features of this molded insulator are that it locks onto the corepiece and covers the sharp edges of the ferrite core. The purpose of the insulator is to prevent the copper wires of the coil from making contact with the fer

(Image Omitted)

rite corepiece. Without the use of an insulator this can occur frequently due to the copper wire's own insulation being stripped off or nicked while the coil is being wound onto the corepiece. The one-piece injection-molded insulator and runner, shown as top and side views in Fig. 1, has three distinct portions: the left half insulator 1, the hinged runner 2 and the right half insulator 3. In Fig. 2, there is a front and back view of one of the half insulators. When assembled, insulator halves will be placed onto the corepiece 4 (Fig. 3) of the MnZn ferrite slider 5. Assembly begins by folding the hinged runner 2, in the direction indicated in Fig.
1. Before the left half 1 meets the right half 3, the corepiece 4 will be located properly to insure that the locking tabs 6 (Fig. 2) protrude into the MnZn ferrite slider window 7 (Fig. 3). This locking feature secures the insulator from unwanted movement during the coil-winding process and ensures that all of the sharp edges of the corepiece 4 are kept from the coil, as shown in Fig. 4. After the coil-winding operation, th...