DE7208874U - WRAP CORE FOR TOWELS OR THE SAME - Google Patents

Description

H. SEILER, J ₁ PFENNING MEINIG, Berlin ie

DIPLOMA IN ENGINEERS DIPL-PHYS. Oldenburginilee 10

PATENTANWÄLTE Phone: 3Ο4 Öö 21/22

Teleoramm address: Sellwehr patent Postal checking account: Berlin West βθ 38

March 3, 1972
Me / St

Roenspiess & Son company
1 Berlin 49, Poleigrund 14-16

Winding core for colored cloths or the like

The invention relates to a winding core for colored cloths or the like, made of a stiff against the application of forces sufficiently resistant material, with at least one end face on the winding core in rotary motion offsetting drive member can be coupled.

Winding cores for colored blankets for printing and office machines
of all kinds, as well as those which are quite generally able to take up fabric webs and other material present in more or less long webs, have been known for a long time. Such winding cores must be at least as stable
be carried out so that they can withstand the pressure loads caused by the winding process on the one hand and by the wound
On the other hand, material exerted on them can offer sufficient resistance. For this it is sufficient to use hollow cardboard tubes in the majority of applications,

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which are characterized by their low price, both in terms of manufacture and material.

In the case of color ribbons or dye tubes wound on cores used in connection with office machines, the Requirement that the winding cores must be rotated continuously or discontinuously via a drive element. For this purpose it is known to have recesses, lugs, and serrations on one or both ends of the winding core or the like to be provided, in which a coupling element connected directly to the drive member is optional can be engaged or disengaged. Such a coupling member is on the winding core, in particular in the case of a discontinuous drive, a not inconsiderable torsional force is transmitted, so that it has not been possible until now was to use cores made of cardboard or a similar cheap starting material in this context. Winding cores of this type are therefore made of a higher quality and thus rotary loads without damage Material such as plastic or metal. Although these cores have proven themselves in practice, there is a major disadvantage for them in terms of their material and manufacturing costs.

The innovation is therefore based on the task of the advantages

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the well-known cardboard cores with those made of plastic or another high-quality material existing winding cores to unite, at the same time the mentioned Disadvantages of the known cores are to be eliminated.

According to the innovation, the solution to this problem is achieved by that the core is made of an inexpensive material in its central area and over its essential axial length, such as cardboard, while one or both end faces of one or two are fixed to the center piece connected end pieces, the torsional loads by the drive member absorbing material such as plastic or metal.

A particularly inexpensive and thus advantageous production of such cores results from the fact that the end pieces are fastened on both sides of the hollow center piece by means of a press fit.

It is also particularly advantageous for the innovation that the end pieces are different from those located on the winding core Material have clearly assigned colors.

Further features and advantages of the winding core designed according to the invention are shown below with the aid of the enclosed Description of the drawing, which shows an exemplary embodiment.

As can be seen, the winding core, which is used in the exemplary embodiment for colored cloths, consists of three through Pressurization compressed into one another, a uniform cylindrical hollow body forming parts, namely the middle piece 1 and the two end pieces 2. The connection the individual parts can be permanently or by means of a screw socket, in addition to a press fit, by gluing or the like can be made detachable.

The cylindrical hollow body serving as the winding core consists of the central piece 1 over its essential axial length, which is made of an inexpensive material, namely cardboard. The two end pieces 2 take only a small amount Fraction of the total axial length of the core, wherein they have recesses in their end faces that can be brought into engagement with corresponding approaches of a coupling element. The coupling element and this directly driving drive elements are not shown in the drawing. Instead of the three recesses shown it is of course also possible to have any number of recesses or approaches or also teeth and

the like to be provided on the outer end face of each end piece 2. The projections or recesses 3 can be brought into or out of engagement with the coupling element, not shown, either by axial displacement, whereby either a continuous or a discontinuous drive of the winding core can be specified. The end pieces 2 consist of a colored plastic material, but they can be made of any other material of higher quality than the middle piece 1, such as metal or the like, which is capable of being affected by the drive at least one of the end pieces 2 receive the transmitted torsional forces without loading \ damage or significant wear.

Of course, it is also possible, instead of the two end pieces 2 at both ends of the middle piece 1, to use only one] Such an end piece 2 is to be provided on the end face of the middle piece 1.

The end piece or pieces 2 can have different colors, which in turn provide a clear indication on the material wound on the winding core or the type of ink sheet or the like.

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Such a winding core manages with a minimal amount of high-quality material, while the main body the core can consist of extremely inexpensive material, the mechanical properties of the Core correspond to that of a winding core made entirely of high quality material, such as plastic,

Claims (3)

PROTECTION CLAIMS 1. Winding core for colored cloths or the like, from one stiff sufficiently resistant to the application of force Material, with at least one end face on a rotating movement of the winding core Drive member can be coupled, characterized in that the core in its middle Area and is made of an inexpensive material such as cardboard over its essential axial length, while one or both end faces of one or two end pieces (2) firmly connected to the middle piece (1) from, the torsional loads formed by the drive member absorbing material such as plastic or metal are. 2. winding core according to claim 1, characterized in that the end pieces (2) on both sides of the hollow center piece (1) are attached by a press fit. 3. winding core according to claim 1, characterized in that the end pieces different, the one on the winding core have clearly assigned colors to the material.