DE495151C - Process for the production of waterproof footwear and waterproof boots produced by this process - Google Patents

Description

Process for the manufacture of waterproof footwear and according to this Method of Manufactured Waterproof Boots The invention relates to a method for the production of waterproof footwear.

There are known methods as well as footwear made according to them become, where z. B. a leather edge strip with its edge on the outside at the bottom Edge of the upper leather along with a waterproof insert and a cork bottom sole Täckse is attached. The free edge of the leather strip is turned over and likewise attached by bags. In addition, rubber inserts or rubber linings are used as sealing means on the sole has been suggested, but has not proven itself in practice.

In particular, it should be mentioned that any nailing of the sealing strip in the course of time must lead to a leak again, since the formation of rust is inevitable and the bags to be removed during repairs form holes, which always lead to leaks Give cause.

In the case of the invention, too, the manufacturing process between upper leather and insole uses a weatherstrip; however, that differs after Footwear produced by the new method compared to the known in that on the same by one around the entire circumference or around a part outside the heel parts circumferential edge strip made of elastic, possibly also waterproof impregnated Leather (upper leather, e.g. chrome leather), which finitely its one edge as expedient as possible near the edge of the insole or the lower sole in one operation together with the upper leather together with sealants and lining materials, including sealants and adhesives is sewn together, the free edge of this edge strip around a second sole, z. B. undersole, also flanged with the inclusion of sealants and adhesives and sewn to this and the now completely waterproof part of the footwear in a manner known per se by attaching a bottom and an outsole is completed.

Another feature of the method in which the seams or 'adhesive edges, if necessary with intermediate layers z. B. 01- or lacquer canvas o. The like. Provided, consists in that the seams or adhesive edges by impregnation with conventional water-insoluble adhesives, lacquer o. The like., Are sealed.

The boot manufactured using the new process is distinctive in particular by the fact that the leather edge strip with the insole and the bottom sole is connected in one operation only by a joint common to all parts. This new method is particularly useful for subsequent repairs or even when the boot is re-soled, the stripe f is not injured and the waterproofness of the footwear is always maintained. One example embodiment shows the drawing, which is a cross-section through the middle Representing part of the boot in an expanded shape.

It is first shown on the left half of the drawing Embodiment considered. The upper leather a is with the sealing insert b and the Lining c wrapped around the insole d and with the edge strip f through a seam g or adhesive bonded at the lower edge. The ends protruding inwards are further, glued to the insole or fastened by means of a binding according to and the seams with waterproof intermediate layers made of oil or lacquer canvas and impregnation sealed with water-insoluble adhesives, varnishes or the like.

The seam g is protected by a laid-on bottom sole i, around the edge of which the free edge of the marginal strip f is then folded inwards and is united with it by a bond k and sealed by adhesive. In this way, a completely watertight union of all parts is guaranteed.

Finally, in a known manner, the sole is made up of the sole and the outsole nz existing floor by gluing, nailing or the like. Attached to it.

This type of design is used wherever manual labor is required. For machine production, on the other hand, there is a change in the connection of upper leather a, b, c, insole d, edge strip f and lower sole i insofar as, according to the right half of the drawing, these four parts are connected by a common seam g on the machine .

It is managed in this way, for sports, hiking and the general Use to manufacture suitable footwear that meets all water-tightness requirements and keeping warm is completely sufficient. Repairs are very easy - in everyone Workshop without the need for special tools.

There is also an economic advantage that durability of footwear because of the hidden seams and the lack of piercing edges or chafing seams near the lower edge of the upper leather other boots with exposed seams for the same purchase price is increased.

Claims (3)

PATENT CLAIMS; i. A process for the production of waterproof footwear, in which a sealing strip is used between the upper leather and the insole, characterized in that an edge strip (f) made of elastic, possibly also waterproof, which runs around the entire circumference or a part outside the heel parts, is used on the footwear Leather (upper leather, e.g. chrome leather), which with its one edge expediently as close as possible to the edge of the insole or the lower sole (d and i) in one operation together with the upper leather (a) together with the sealing or, v. Linings (b and c) are sewn together with the inclusion of sealants and adhesives (seam g), the free edge of this edge strip (f) around a second sole, e.g. B. undersole (i), also with the inclusion of sealing and adhesive agents and sewn to this and the now completely waterproof part of the footwear is completed in a known manner by attaching an undersole and an outsole (l and in) . 2. The method according to claim i, in which the seams or adhesive edges, if necessary with intermediate layers of oil or Lacquer canvas or the like. Are provided, characterized in that the seams or adhesive edges sealed by impregnation with known water-insoluble adhesives, varnish or the like are. 3. Waterproof boot according to claims i or 2, characterized in that the leather edge strip (f) is connected to the insole (d) and lower sole (i) in one operation only by a seam (g) common to all parts.