DE1033095B - Independent shoe inner part to be pulled over the foot and process for its manufacture - Google Patents

Description

GERMAN

People are used to having interchangeable parts inside shoes, and not just to thereby making an adjustment between the size graduation and the actual foot shape, but especially to create comfortable padding and to change, care for, and wash the inner part of the shoe and to be able to ventilate. This is especially true in a modified form for work boots, e.g. B. accident prevention boots, which are suitable for work on stones and earth, as well as for mining boots, to which the invention primarily relates. at Slippers, slip-on socks, slip-on boots or the like, with which you can get into a correspondingly larger one Shoe z. B. rubber or leather slips into it, must for a lx; especially good ventilation be taken care of while using the shoe. A number of suggestions have already been made for this ventilation been made. There are ventilation channels with valves and pumping devices in the footwear built-in, specially designed insoles with chamber system used and. especially at the use of interchangeable shoe inner parts provided from chamber-shaped walls.

According to the invention, a particularly simple and therefore also economical to manufacture becomes light Proposed arrangement to be maintained, which also ensures a long service life.

The invention is based on the fact that it is for soles of footwear and for other types Upholstery purposes, namely for the upholstery of upholstered furniture and pillows, is already known a Cushion layer made of so-called rubber hair, d. H. of horsehair, synthetic horsehair or the like, preferably produce coarser and / or rigid fiber structures in such a way that the individual Fibers are connected to each other at their points of contact and in this way a proportionate rigid, but at the same time well cushioning and flexible upholstery material. Since with his Production of the fiber structures is usually dipped in latex mixtures or in some other way of are surrounded by these mixtures, the fibers themselves are completely covered by the latex or on the outside. wrapped in another appropriate binding agent and protected against external influences such as rotting, moth damage or the like, protected.

According to the invention, such a cushioning material, referred to as rubber hair, is intended to be used in conjunction processed with an inner lining to form an independent shoe inner part that can be pulled over the foot will; because it has been shown that just this upholstery layer used elsewhere is a special one favorable all-round ventilation of the inside of the shoe to be pulled over the foot,

independent shoe inner part

and its method of manufacture

Applicant:

Elconia GmbH, rubber goods factory,
Northeim (Hann.)

ensures that it is not necessary to use the previously proposed to use extensive measures with pumping devices or with chamber systems.

In a further meaningful development of the inventive concept should be simultaneously with the interchangeability and good ventilation, the advantage of accident prevention can be achieved. To this end, it is proposed to form the shaft acting as a cushioning layer in greater thickness at particularly pressure-loaded areas. This can be done in such a way that ζ. Β. in the manufacture of an inner shoe part according to the invention Prefabricated panels are used, which are double the panel thickness at the relevant pressure points own. If there are padding sheets made of rubber hair with different thicknesses, the Reinforcement at the pressure points can be achieved by putting together panels of different thicknesses. It goes without saying that the plate thickness is advantageous at the edges of these reinforcements should decrease in order to obtain a smooth transition to the usual thickness of the cushioning layer which sufficient ventilation can be achieved.

In the manufacture of the inner part of the shoe according to the invention, it is advisable to assemble the sole from two layers in the interests of particular durability and flexibility, which together correspond to the layer thickness of the upper, whereas the upper is made from only one layer. In this case, in the W ^r else be taken that first the lower sole layer with the lower edge of the shank and then the upper sole layer with the feed and the lower sole is connected.

809 558ΛΙ11

The lining and shaft of the inner part of the shoe can be connected to one another in a wide variety of ways, z. B. by quilting seams, by welding, gluing and vulcanization, which are particularly is recommended.

By welding or gluing, if not in a special way, for. B. in. Stripes, diamonds or Point shape, takes place, the air permeability of the lining is severely impaired. For this Basically, it is also advisable to make the connection between the chuck and the shaft in such a way that they only takes place using the binding agents required to connect the individual fiber parts, d. H. in other words, in the case of vulcanization, only those already contained in the fiber-rubber mixture are used Rubber parts.

An exemplary embodiment of the invention is shown in the drawing.

The slip-on boot according to the invention consists of the lining 1 in the shape of a boot, which is in the heel part 2 is reinforced and stiffened by plastic impregnation, as well as from the shaft, which is made by gluing two shaft halves 3 and 4 along the butt abutting one another in the middle longitudinal plane of the boot Edges of the two shaft halves is formed. The shaft parts 3 and 4 have a padding thickness of 1 cm.

With the shaft formed in this way, the lower sole part 7 is in the same way, i. H. by gluing tied together. An upper sole part 8 made of the same material is arranged above it. The sole parts 7 and 8 taken together are as thick as the padding material for the shaft 3, 4. The lining 1 is wrapped around the edge around the upholstery shaft and sewn to it.

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Claims (8)

Patent claims: 1. Independent shoe inner part to be pulled over the foot, such as slip-on slippers, slippers, -Boot od. The like., Characterized in that the shaft (3j 4) and sole (7, 8) from one per se known upholstery material, the so-called rubber hair, in which horsehair, Artificial hair or similar, preferably coarse and / or rigid fibers at the points of contact and crossing points by binding agents such as vulcanized rubber or the like, elastically with one another are connected and that the shoe inner part in a known manner with an inner lining (1) is provided. 2. Inner shoe part according to claim 1, characterized in that the shaft (3, 4) consists of a Layer, the sole, however, is made of two layers (7, 8), the thickness of both soles (7,8) taken together equals that of the shaft (3, 4). 3. Inner shoe part according to claim 1 or 2, characterized in that the particular pressure loads exposed parts stronger, especially twice as strong, e.g. B. two-layer, produced are. 4. Inner shoe part according to one or more of claims 1 to 3, characterized in that the lining (1) and the shaft (3, 4) are connected to one another by sewing and / or quilting are. 5. Inner shoe part according to one or more of claims 1 to 3, characterized in that Lining (1) and shaft (3, 4) are connected to one another by welding or gluing. 6. Inner shoe part according to claim 5, characterized in that the lining (1) and shaft (3, 4) are connected to one another by vulcanization. 7. Inner shoe part according to one or more of claims 1 to 6, characterized in that the shaped shaft halves (3, 4) made of finished or not finished vulcanized rubber hair plates formed and the individual parts are sewn, welded, glued or connected by vulcanization at the interfaces. 8. A method for the production of shoe inner parts according to claim 5 or 6, characterized in that that the connection between the chuck (1) and the shaft (3, 4) only in the latter existing binders can be used. Considered publications:
German Patent No. 575 585;
Swiss patents No. 258 072, 190997. 1 sheet of drawings © 809 558/111 6.58