초록 ▼

A printing blanket holding bar adapted for insertion into a channel longitudinally extending along the periphery of a reel, the channel having a pair of flat, generally parallel side walls extending from the periphery of the reel, said holding bar comprising a base having a first flat surface and a

A printing blanket holding bar adapted for insertion into a channel longitudinally extending along the periphery of a reel, the channel having a pair of flat, generally parallel side walls extending from the periphery of the reel, said holding bar comprising a base having a first flat surface and a second flat surface generally parallel therewith, each base surface adapted to be disposed against and cooperate with a corresponding channel side wall when said holding bar is operably inserted into the reel channel, a blanket clamping arm carried by said base and adapted to cooperate with said base to clamp an associated printing blanket end therebetween, a top surface of said clamping arm adapted to support the printing blanket when said holding bar is operably inserted into the reel channel and when the printing blanket is wrapped at least approximately one revolution around the reel, at least a substantial portion of said arm top surface being bowed, the tip of said arm tapering to substantially zero thickness, an edge of said arm top surface joining an edge of said base first surface, the edge of said base first surface which joins the edge of said arm top surface lying approximately even with the peripheral edge of its corresponding channel side wall when said holding bar is operably inserted into the reel channel.

대표청구항 ▼

1. A printing blanket holding bar insertable in a generally rectangular axially disposed channel formed in a cylindrical blanket holding reel for anchoring one end of a printing blanket on the blanket holding reel, said bar comprising a generally U-shaped base member having a bight and a pair of leg

1. A printing blanket holding bar insertable in a generally rectangular axially disposed channel formed in a cylindrical blanket holding reel for anchoring one end of a printing blanket on the blanket holding reel, said bar comprising a generally U-shaped base member having a bight and a pair of legs extending from the opposite ends of said bight adapted to be slidably received within said channel with the outer surface of said legs being disposed in interfacial relation with the side walls of said axially disposed channel and with the upper surface of said bight being disposed in an increasing depth chordal relation relative to the surface of said blanket holding reel and an integral blanket clamping arm hingedly connected to the lower end of the bight portion of said base member, thereby forming a jaw opening toward a first side wall of the channel and adapted to cooperate with the upper surface of the bight portion of said base member to clamp an end portion of the printing blanket therebetween, the one of said legs adjacent said first channel sidewall forming an acute included angle with the upper surface of said bight and said second leg being parallel thereto, said clamping arm having an upper arcuate outer surface formed such that when the generally U-shaped base member of the printing blanket holding bar is inserted in the channel with said upper outer surface of said clamping arm lying across the channel, the marginal edge of said upper outer surface of said clamping arm is disposed in substantially flush continuous facing relation with the top edge of a second side wall of the channel, and wherein the upper surface of the bight remote from the hinged connection of said clamping arm is disposed in substantially flush continuous facing relation with a top edge of the first side wall of the channel. 2. A printing blanket holding bar according to claim 1 wherein the thickness of said blanket clamping arm progressively decreases across the channel toward the first side wall. 3. A printing blanket holding bar according to claim 1, wherein said blanket holding reel is substantially cylindrical and wherein the upper outer surface of said blanket clamping arm is defined by an arcuate portion of a circle having its center of curvature generally coincident with the center of curvature of said blanket holding reel.