Browse Prior Art Database

Band Type Safety Bail

IP.com Disclosure Number: IPCOM000089848D
Original Publication Date: 1968-Dec-01
Included in the Prior Art Database: 2005-Mar-05
Document File: 2 page(s) / 43K

Publishing Venue

IBM

Related People

Bell, AH: AUTHOR

Abstract

Injury to or from an object intervening with movement of a powered closure device is prevented. This is effected by locating a resiliently-backed cable in proximity to the hazard zones and connecting the cable to a safety switch. The device senses the presence of intervening objects such as the hands or fingers of an operator in conjunction with powered closure devices such as power windows or doors.

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Band Type Safety Bail

Injury to or from an object intervening with movement of a powered closure device is prevented. This is effected by locating a resiliently-backed cable in proximity to the hazard zones and connecting the cable to a safety switch. The device senses the presence of intervening objects such as the hands or fingers of an operator in conjunction with powered closure devices such as power windows or doors.

The drawing shows a rear view of tape drive door 10, with power window 11 mounted within 10. Cable 12, encased in extruded resilient plastic tubing 14, is mounted just below the upper window frame immediately in front of the path of travel of 11 and is anchored to 10 at 15. Anchored spring 16 maintains 12 under tension. As 11 is raised, any intervening object forced upward deforms 14 and causes 12 to shorten with respect to 16 via mounting pulleys 17 and 18, thus actuating safety switch 19. Lever 20 permits accentuation of the movement of
12. By devices not shown, 11 is immediately moved downward so as to release the intervening object. Mounting plate 21 for 11 extends outwardly from the lower portion of 11. Thus, the upper surface of 21 can also be a hazard as it approaches the lower window frame area 22 when 11 is raised. Another section of cable-carrying tubing 14 is mounted below the lower window frame to similarly actuate 19 when an intervening object is encountered. If other ledges or objects should be located so as to create a hazard on l...