Browse Prior Art Database

Tapered Ball Socket Pins

IP.com Disclosure Number: IPCOM000051411D
Original Publication Date: 1981-Jan-01
Included in the Prior Art Database: 2005-Feb-10
Document File: 2 page(s) / 36K

Publishing Venue

IBM

Related People

Carpenter, RM: AUTHOR

Abstract

Referring to the drawings, Fig. 1 shows an arrangement for transmittin torque from pin 1 to pin 2 through ball joint 3. The advantage of this arrangement over prior-art approaches, using a double tapered pin, is that a line contact forms between the pins and the wall of the slot in ball joint 3. Referring to Fig. 2, the pins in the prior-art embodiment show a point contact between the pins and the edge of the slot. The stresses are considerably higher under this design and rapidly becomes a source of wear.

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Tapered Ball Socket Pins

Referring to the drawings, Fig. 1 shows an arrangement for transmittin torque from pin 1 to pin 2 through ball joint 3. The advantage of this arrangement over prior-art approaches, using a double tapered pin, is that a line contact forms between the pins and the wall of the slot in ball joint 3. Referring to Fig. 2, the pins in the prior-art embodiment show a point contact between the pins and the edge of the slot. The stresses are considerably higher under this design and rapidly becomes a source of wear.

In the past, straight pins have been used with double tapered slots, but have been found to be very difficult to manufacture.

It is believed that the pins having a double taper with a straight slot, permitting a controlled grinding operation, will be preferred.

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