DE465500C - Paper roll unwinding device for typewriters u. like - Google Patents

Description

Paper roll unwinding device for typewriters and the like The invention relates to a paper roll unwinding device for typewriters and the like with one seated between two end disks on a continuous axis of rotation Core roller, the latter in a manner known per se through into the ends of their axial bore entering conical parts is held centrically.

The purpose of the invention is to design an unwinding device of this type in such a way that that with extremely easy rotations of the core roll this for the purpose of renewing the paper roll can be quickly and conveniently removed and centrally located again.

This is achieved according to the invention in that one of the conical Part-bearing end disks can be moved lengthways on the rotatable in the roller carriers mounted axle is arranged and together with a grip plate, which is through a the coil spring surrounding the axis is connected to it by means of a bayonet lock can be determined on the axis, such that in this locking position the conical The disc attachment is pressed into the axle hole of the core roll by the spiral spring and after loosening the bayonet lock by twisting the grip disc this with the Spring and end plate can be pulled off the axle.

In the drawings is an embodiment of the Abwickelv device shown according to the invention. Fig. I shows the same in an axial section partial view.

Fig. Z is a side view of Fig. I from the right and Fig. 3 is a those from the left.

The actual unwinding roll is with the ends of its axis of rotation a between two adjustable supports c and cl attached to the paper guide plate b stored. In the carrier c, the storage takes place in an incision d (Fig. 3) and a leaf spring e is provided which the axle end f with a corresponding Hole grips and can be lifted off at a handle g so that it is the end of the axle f releases and the axle can be lifted out of the bearing recess d. In the carrier c1, the axle end h is mounted in a simple hole from which it is dug out End f can be pulled out.

The core roll i made of wood has an axial bore which has widenings k1 at the ends. Expediently roughened conical extensions 1, h of the two end disks m, ml enter this and always hold the roller i firmly in the center. This method of fastening makes it easy to see that the production of the bore k does not require any precision, since it has no influence on the central bearing.

The end disk m1 with its conical extension 11 is seated longitudinally displaceably on the axis a and is connected to a grip disk o by a spiral spring n surrounding it. The whole thing can be determined by a bayonet lock, which is formed by a pin p of the axis a and lentsprecbende slots g in the parts 11, m and o, on the axis a or solved by turning by 90 ° and removed from the previously excavated axis will. In the locked position, the spring n presses the cone 11 into the bore k1.

After removing the end disk ml, the worn one can be removed from the core roll i Pulled off the paper roll and pushed on a new one or, for this purpose, also the core roll be taken out entirely.

Claims (1)

Claim: paper roll unwinding device for typewriters and the like with a core roller seated between two end disks on the continuous axis of rotation, which is held centrally by conical parts entering into the ends of its axial bore, characterized in that one of the end disks carrying the conical parts (ml) is arranged to be longitudinally displaceable on the axis (a) rotatably mounted in the roller carriers (C, Cl) and, together with a grip disk (o), which is connected to it by a spiral spring (s) surrounding the axis (a), by means of Bayonet lock on the axle can be determined in such a way: that in this locking position or conical disc attachment (h) through the 'spiral spring (s) in the axle bore (kl) of the core. roller (i) and after loosening this bayonet lock, it can be pulled off the axle (a) by turning the grip disk (o) with the spring and end disk (ml).