Browse Prior Art Database

Dynamically Actuated Clamp

IP.com Disclosure Number: IPCOM000034695D
Original Publication Date: 1989-Apr-01
Included in the Prior Art Database: 2005-Jan-27
Document File: 2 page(s) / 51K

Publishing Venue

IBM

Related People

Frederici, RH: AUTHOR [+3]

Abstract

Disclosed is a mechanism that accomplishes the clamping of flat rectangular glass of various sizes for rotational speeds of up to 500 rpm. As shown in the drawing, glass D is placed in fixed arm B/floating arm C assembly. The motor begins rotating. Glass D slips on smooth surface of fixed arm B captivating glass D corners. Glass D becomes a load bearing member and contacts floating arm C. The slippage of glass D on the smooth surface of floating arm C allows captivation of remaining two glass D corners. During the acceleration phase, the tangential clamping force is predominant. At constant velocity, gyroscopic effects provide stability while tangential clamping force minimizes. Out-of-balance forces are countered by the integrity of the arms in the radial direction.

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Dynamically Actuated Clamp

Disclosed is a mechanism that accomplishes the clamping of flat rectangular glass of various sizes for rotational speeds of up to 500 rpm. As shown in the drawing, glass D is placed in fixed arm B/floating arm C assembly. The motor begins rotating. Glass D slips on smooth surface of fixed arm B captivating glass D corners. Glass D becomes a load bearing member and contacts floating arm
C. The slippage of glass D on the smooth surface of floating arm C allows captivation of remaining two glass D corners. During the acceleration phase, the tangential clamping force is predominant. At constant velocity, gyroscopic effects provide stability while tangential clamping force minimizes. Out-of-balance forces are countered by the integrity of the arms in the radial direction. Aerodynamic design of arms provides additional downward clamping force This mechanism has several advantages. First, the clamping is dynamically actuated. The greater the acceleration, the greater the clamping force. At constant velocity, clamping forces are relieved, thereby resulting in minimum glass deformation. Second, obstructive clamping mechanisms are eliminated. The advantage of this is full top exposure required by certain processes and ease of removal and installation. Third, the mechanism can clamp a multitude of rectangular shapes without the need of tooling changeover.

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