US 4,635,699 AGranted

Retractable safety shield

AssigneeCovenant Manufacturing Co.

InventorsJames C. Kauffman, Glenn F. Thompson

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Abstract

A retractable safety shield is made of a plurality of telescoping support members, each having an identical cross-section and capable of formation by extrusion. Each of the telescoping support members has an elongated slot cut through it for a substantial portion of the length of the support members. Parallel guide grooves are formed in one surface on opposite sides of this slot and mating parallel ribs are formed on the other surface of each of the support members. The members are slidably interconnected with one another by means of rivets through the slots to cause the guide ribs on one support member to slidably nest within the guide grooves of the adjacent support member. Flexible shields are attached to the lower edges of each of the guide members to extend downwardly toward the work surface with which the device is used.

Claims19

Dependent claims

A retractable shield, including in combination:

first and second identical elongated support members slidably overlapping one another for cantilevered telescopic movement relative to one another, at least said second member having an elongated slot therethrough for a substantial portion of its length and extending in the direction of relative movement of said first and second support members;
pin means attached to said first member and passing through the slot in said second member for slidable movement in the slot in said second member to secure said first and second members together;
at least one elongated groove in each of said first and second support members on one surface thereof and extending throughout the entire length thereof, and a mating elongated rib extending from the opposite surface of each of said first and second support members and extending throughout the entire length thereof, the rib in said second support member fitting within the groove in said first support member for slidable overlapping telescopic movement therein, said groove and rib preventing said members from pivoting with respect to one another about said pin means;
and
first and second shield members attached to the lower edges of said first and second support members, respectively, and depending therefrom.

2 more elements

A retractable shield including in combination:

at least three elongated support members, each having identical cross-sections and slidably overlapping one another for cantilevered telescopic movement relative to one another, each of said members having an elongated slot therethrough for a substantial portion of its length, the slots extending in the direction of relative movement of said support members;
each of said support members having an elongated rib extending throughout the entire length thereof and parallel to the slot therein on one surface thereof and having a corresponding guide groove throughout the entire length thereof and parallel to the slot therein on the opposite surface thereof, so that when said elongated support members are placed together in a slidably overlapping position, the rib on one of said members extends into the guide groove on the immediately adjacent overlapping member to form an adjacent pair of members and the elongated slots of said overlapping members are aligned with one another;
a rivet extending through the slots in each said adjacent pair of support members, said rivets having enlarged heads on both ends thereof to hold said support membrs in slidably overlapping position with the rib of each overlapping support member held in the guide groove of the immediately adjacent support member by said rivet extending through the slots of such support members;
a plurality of shield members attached to the lower edges of at least some of said plurality of said support members and depending therefrom.

1 more element

Dependencies are inferred from the claim text.