HRP931446A2 - Method of leather joining with holes on the edge - Google Patents

Description

The technical field to which the invention belongs

The subject of the invention belongs to the field of raw leather, and especially to the field of edge finishing. According to the International Classification of Patents (IPC), the subject of the invention is classified, i.e. classified and marked with the classification symbol C14B 11/00, which defines the finishing of the edge with leather pieces, for example by folding.

Technical problem

The technical problem that is solved by this application consists in the following: how to join two pieces of leather, while keeping the joint firmly? The defined technical problem was solved by the proposed procedure of joining the skin with holes on the edges.

State of the art

The skin can be joined by sewing or gluing. The characteristic of the mentioned connection methods is that the connection itself takes up a lot of space. Thus, for example, a case for glasses or keys made by sewing or gluing is too large in terms of using useful space due to the width of the sewing or gluing surface. The joint is not so flexible, but rather rigid, and due to more frequent bending, the glue loosens, the thread breaks or the skin is cut by the thread with which it was sewn. With these joining methods, the consumption of thread or glue is considerable, which is particularly reflected in large series production. The following disadvantage of holsters made by sewing or gluing which is the glued surface or sewn together with the edge is rigid, and causes more frequent damage to the pockets or bags in which it is carried.

This is the basic drawback of the above-mentioned known solution and the goal of the solution according to this application is to create such a procedure for joining leather with holes on the edges of the joint, which will enable joining two pieces of leather in a solid joint without sewing or gluing with the possibility of bending without consequences for the destruction of the compound.

Description of the solution to the technical problem

The construction solution of the procedure according to this invention provides that the edges of the skin connection have holes along the entire length of the connection. One of the joining skins has slits that cut a hole with the end of the edge. The arrangement of holes on one skin is not in the horizontal bisector of the holes on the other skin. Their horizontal bisector is the midpoint between the two holes on the second skin. The structural connection of joining these two elements performed in the manner described above enables the joining of two pieces of leather into one solid flexible joint without stitching or gluing. This would be the basic advantage of the invention. The invention is described in more detail on the example of the method of execution shown on the attached drawing in which:

Figure 1 shows the joining of two pieces of leather

Figure 2 shows the section A-A, that is, the section through the joint

Figure 3 shows the performance of one skin before joining

Figure 4 shows the performance of the second skin before joining

The skin 1 along the entire length of the joining edge has regularly spaced holes 1.1 with a slot 1.2. The diameter of the holes 1.1 on the skin 1 is identical to the diameter of the holes 2.1 on the skin 2. The holes 2.1 are regularly distributed along the entire length of the joining edge on the skin 2. The smallest distance 1.3 between the holes 1.1 is equal to the diameter of the holes 1.1 or 2.1. Holes 2.1 on skin 2 are not in the same horizontal axis with holes 1.1 on skin 1 but on the horizontal center between two holes 1.1 on skin 1. Holes 1.1 and 2.1 were never made to the edge of 1.4 and 2.2, but at a certain distance 1.5 or 2.3 because that are surfaces that enable pulling out or separating skin 1 from skin 2 after joining. Distances 1.5 and 2.3 are equal.

The connection method is as follows. Lay skin 1 next to skin 2 so that the upper and lower edges are horizontal. We squeeze leather segment 1.6 of leather 1 and pull it through the adjacent hole 2.1 on leather 2. After pulling it through hole 2.1, we spread leather segment 1.6. After passing all segments of skin 1.6 on skin 1 and through holes 2.1, we connect skin 1 with skin 2 without gluing or sewing, which is a novelty. With this joining, we get an embroidery that is pliable, soft, has an aesthetic appearance and looks like folk embroidery. The connection is simple and solid and the internal useful surface is large compared to the external surface. This process can be used to join materials other than leather, such as leather, thicker plastic films and similar materials.

Statement on the best way for commercial use of the reported invention

In order to achieve the set goal - connecting the skin with holes on the edge - it can be said that for the economic use of the invention in question, no special knowledge, experience and instructions are needed that should be applied.

Only the knowledge possessed by an average expert in the subject area is necessary and sufficient for the successful application of the subject invention, based on the given description of the invention.

Claims (1)

1. The process of joining leather with holes on the edge is the process of joining two pieces of leather that have symmetrical holes on the edges of the joint, which enable joining without sewing or gluing, indicated by the fact that the leather (1) has holes (1.1) with a slot (1.2) and by the gap (1.3) between the holes (1.1) which are distant from the edge (1.4) by a gap (1.5), whereby the leather segment (1.6) is passed through the hole (2.1) which is distant from the edge (2.2) by a gap (2.3) , on the skin (2).