Browse Prior Art Database

Retracting Scissor Lift Ramps

IP.com Disclosure Number: IPCOM000051448D
Original Publication Date: 1981-Jan-01
Included in the Prior Art Database: 2005-Feb-10
Document File: 2 page(s) / 32K

Publishing Venue

IBM

Related People

Brown, RE: AUTHOR [+2]

Abstract

Scissor lifts are often used on the assembly and test lines during the manufacture of large, heavy box-type apparatus, such as disk files. The function of the lift device is to permit the apparatus to be raised to a convenient working level at various work stations on the assembly line. Generally, stationary detached ramps are provided adjacent the lift to permit the apparatus to be moved on and off the horizontal platform of the lift when it is in its lowered position. However, when the platform is raised to a working level, the stationary ramp hinders complete 360 degrees unobstructed access to the apparatus and represents a safety hazard.

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Retracting Scissor Lift Ramps

Scissor lifts are often used on the assembly and test lines during the manufacture of large, heavy box-type apparatus, such as disk files. The function of the lift device is to permit the apparatus to be raised to a convenient working level at various work stations on the assembly line. Generally, stationary detached ramps are provided adjacent the lift to permit the apparatus to be moved on and off the horizontal platform of the lift when it is in its lowered position. However, when the platform is raised to a working level, the stationary ramp hinders complete 360 degrees unobstructed access to the apparatus and represents a safety hazard.

Fig. 1 shows a lift 10 provided with a horizontal platform 11 to which a ramp 12 is pivotally attached. Ramp 12 assumes a vertical position, as shown in Fig. 2, when the lift is raised to a working position. To insure that the ramp returns to the Fig. 1 position as the platform is lowered, the end 14 of the ramp is provided with a set of small wheels or rollers 15 which cooperate with a set of curved guides 16 attached to the base of the lift 10. Guides 16 force the end 14 to move horizontally as the lift is lowered to its extended position.

The arrangement provides 360 degrees unobstructed access to the apparatus on platform 10 when the lift is raised to a working level.

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