DE552954C - Folder in which swingable folding bars with indentations in their end faces close on appropriately narrowed alignment pins - Google Patents

Description

Folder in which swingable folding brackets with indentations in their End faces on appropriately tapered alignment pins are the subject of the invention is a letter folder with swingable folding handles, their end faces accordingly are recessed, with these recesses on tapered, fixed "alignment pins conclude.

So far, those wells are coaxial with the ends of the fold ebail has been drilled, and regularly conical, while the tips of the Alignment pins had a similar cone shape.

However, it has been shown that with this design: a safe, seamless closure of the bracket on the pins on the outer circumference, -d. H. where the sheets etc. lined up on the folder have the most aspiration to roughly Entering existing gaps in a disruptive manner cannot be achieved because it cannot be avoided is that even in the manufacture of the folder mechanism, there are minor deviations in shape and bends especially when using the folder. Ever The radius of curvature is smaller at the point where the folding brackets on the alignment pins sit up, the more annoying is an imperfect conclusion on the outer circumference of the Pins or stirrups.

There are of course various means and methods available to make the end of the bracket as perfect as possible on the outer circumference.

The subject of the invention is a means that fulfills its task, without making the production more expensive in any way, and above all, without a special one To make operation necessary.

The drawing shows a schematic representation of an embodiment. the new solution found.

, a is an alignment pin with a tapered shape attached to the base plate b Tip and an eccentric to the tip arranged recess c for receiving, one so-called inverters.

The folding handle is in the usual way around a provided on the plate b and formed, for example, by a cut-out and bent flap e Swinging bearings. The drawing shows the bracket swung back only a small amount.

The recess / in the end face of the bracket 'd is now not in the Tangent to the center line of the stirrup, but forms where those Center line protrudes beyond the end face of the bracket, making an acute angle with the tangent at this point, such that the center line of the expediently hollow conical Hole f at the point where it emerges from the bracket, within that tangent, d. H. between the tangent and the swing axis of the bracket.

This inclined position of the recess is on the inside of the bracket more material taken away than on the outside. On the outside can therefore Under all circumstances, the bracket should be placed fully on the alignment pin and this will result in it not hindered by premature placement on the inside. At the same time is the Another advantage achieved is that when closing the bracket, the tip of the aligning pin less hinders.

The inclination of the tapered bore f is when using a corresponding Drilling jig relatively easy to achieve, and the manufacture of the bevels When using this tool, drilling does not require more time and costs than the usual centric hole.

Claims (1)

PATENT CLAIM: Folder in which swingable folding handle with indentations close to correspondingly tapered alignment pins in their end faces, thereby marked that. the tip of the indentation outside the center line of the folding arm lies.