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Transducer-Suspension Suppressor Clip

IP.com Disclosure Number: IPCOM000046709D
Original Publication Date: 1983-Aug-01
Included in the Prior Art Database: 2005-Feb-07
Document File: 3 page(s) / 79K

Publishing Venue

IBM

Related People

Rigotti, JM: AUTHOR

Abstract

Clip 10 provides a means of holding read/write head assemblies 11, 12, 13 and 14 in unloaded disk positions of the respective transducers A, B, C and D to facilitate positioning on actuator carriage 16. Assembly 11 includes a rigid support 18, read/write transducer or head A and a head suspension 24 on which, at its distal end, the transducer A is mounted and which is fixed to the support 18 at its other end. Suspension 24 is made of thin flexible sheet metal and has side arms 24a and 24b and a central load beam 24c. Arms 24a and 24b terminate in a figure-eight portion 24d on which transducer A is supported, and load beam 24c bears on the back side of the transducer. Beam 24c in particular is bent so as to forcefully bear on the back side of transducer A so that, when assembly 11 is free, as shown in Fig.

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Transducer-Suspension Suppressor Clip

Clip 10 provides a means of holding read/write head assemblies 11, 12, 13 and 14 in unloaded disk positions of the respective transducers A, B, C and D to facilitate positioning on actuator carriage 16. Assembly 11 includes a rigid support 18, read/write transducer or head A and a head suspension 24 on which, at its distal end, the transducer A is mounted and which is fixed to the support 18 at its other end. Suspension 24 is made of thin flexible sheet metal and has side arms 24a and 24b and a central load beam 24c. Arms 24a and 24b terminate in a figure-eight portion 24d on which transducer A is supported, and load beam 24c bears on the back side of the transducer. Beam 24c in particular is bent so as to forcefully bear on the back side of transducer A so that, when assembly 11 is free, as shown in Fig. 1, the arms 24a and 24b and beam 24c are bent and the suspension 24 is out of the plane of the surface of support 18 on which the suspension 24 is mounted, the bending of the parts 24a-24c being upwardly as the assembly 11 is illustrated in Fig. 1. Carriage 16 has reference surfaces 16a, 16b and mounting surface 16c.

Support 18 is provided with reference surfaces 18a and 18b which cooperate with surfaces 16a and 16b for accurately locating support 18 with respect to the carriage 16. Support 18 is mounted on mounting surface 16c for mounting assembly 11 onto carriage 16. When assembly 11 is being assembled onto carriage 16, transducer A must be held in the unloaded position against the urging of central beam 24c so as to prevent damage to the front effective surface of transducer
A. Clip 10 is effective for this purpose and advantageously does not cover up the reference surfaces 16a, 16b, 18a and 18b so that assembly 11 may be accurately mounted on carriage 16. Clip 10 has a central web portion 10a and a flange portion 10b extending at right angles to portion 10a. A pin 36 is fixed on the bottom surface of clip 10 as clip 10 is illustrated in Fig. 1, and pin 36 has a longitudinal slot 36a in it and is spread apart slightly at this slot. A ball swage hole 38 extends through support 18 and the spring suspension 24, as shown in Fig. 1, and clip 10 is moved downwardly, as shown in this figure, so that pin 36 enters hole 38 and tightly grips the sides of hole 38. Flange 10b forcefully contacts legs 24a and 24b and beam 24c and moves these parts into flat condition, as they are shown in...