DE292539C - - Google Patents

Description

IMPERIAL

PATENT OFFICE.

PATENT LETTERING

CLASS 71 e. GROUP

EBERHARD MÜLLER in FRANKFURT a. M.

Process for the production of shoe lasts.

Patented in the German Empire on June 17, 1913.

To prevent the upper leather of the footwear from sticking out on the outside If the edge of the sole emerges, so-called crooked ones are already used to make the shoe Last used, in which in the shoe made over them the foot of the wearer with the ball of the ball is pressed inwards and firmly attached to the inner edge of the shoe applies. Compared to this training of the last, through which the manufactured with it Footwear must damage the foot over time, the subject of the invention seeks the to achieve the same effect by the schoolists after recording the foot after one to the four-fifths part point in the greatest line of width of the foot from the center of the heel directed ridge line and with one directed from the center of the heel to the center of the largest line of the width of the foot Metatarsal line is built up, whereupon an ordinary, symmetrically formed Shaft in a known manner with an inward lacing line over the shoe last can be worked.

Instead of giving the footwear an artificial tension in the arch of the foot that Has to damage the foot over time, the use of the above-described peculiar last structure means that the footwear is in an un- loaded condition firmly placed and suspended on the crest of the foot, and 'the inner Part of the upper leather from the comb to the inside, even with an unstressed foot the arch of the foot is drawn into an almost flat surface, so that the arch also without Artificial tension remains supported as soon as the foot is loaded, because a flat surface

in a vault building can only bend by shortening it, while a curved surface can only be kept in shape by form resistance.

It is known per se that the crest of the shoe last is essentially in one line from the center of the heel through the two-thirds partial point of the foot width line. at These explanations, however, do not create the inward-facing, the arch of the foot "in front of the Shoe shape that secures sagging and leaves the toes with sufficient freedom of movement with such use of space that the shoe shape has no clumsy and expressionless lines.

The accompanying drawing illustrates the new process using one made according to it Afford.

Fig. Ι shows the view of the sole, μηα

Fig. 2 shows the view from above on the bar.

To manufacture the last, the process is carried out in such a way that the · shape of the tarsus and the width line 1 is drawn at the height of the largest foot width. By the fifth subpoint 2 in this line is then drawn and passed through the ridge line 3 the midpoint 4 of this line is the metatarsal line 5 and through the two-thirds subpoint 6 of this line the lacing line 7, all from the middle of the heel. The other dimensions result in the known way taking into account the requirement that all surfaces, especially on the inner To be erected as perpendicular as possible on the base area. After the groin shape is established, a normal

symmetrically formed shaft placed on these strips in such a way that the lacing line 7 the shoe shape or the upper shaft seam runs in the direction of line 7 of the last. The rest of the processing of the shoe shape takes place in a known manner.

Claims (1)

Patent claim: Process for the production of shoe lasts, characterized in that the Shoe last is built according to a sole center line (.5), which starts from the center of the heel is drawn to the center of the largest foot width, as well as according to a ridge line (3), which from the heel center after the four-fifths part point (2) of the largest foot width is drawn, and according to a lacing line (7), which Pulled from the center of the heel to the two-thirds part of the largest foot width is. 1 sheet of drawings.