DE1685274A1 - Shoe made from sprayable material and process for the production thereof - Google Patents

Description

Shoe made from injectable material as well as process for the production of the same.

The invention relates to shoes, which wholly or partially consist of injectable material, in particular plastic, with several parts of the shoes from consist of different material. The invention also relates to methods for producing such shoes.

In the manufacture of shoes, more and more attempts are made to to manufacture these entirely or partially from plastic or rubber. It should be more malleable, in particular Injectable material can be used not only for the formation of soles, but also for other parts of the iichuhs »The aim is still to use plastic or rubber

BATH ORIGINAL.

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also mainly to be used for the production of special shoes, e.g. ski boots, work shoes.

The invention is concerned with the possibilities of using formable materials, in particular injectable materials such as plastic or rubber in the manufacture of shoes, preferably in the manufacture of special footwear such as ski boots. The invention is based on the object through selection of special materials with different properties, and / or different colors, the usefulness of the shoes made of or using such materials to increase.

A ski boot is known from German utility model 1 891, consisting of an outer shaft with an outsole (outer shoe) and an additional inner shaft with a preferably thinner sole (inner shoe), where the outer shoe is preferably made of injection-molded plastic and the inner shoe is made of leather

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is according to a proposal the outer shoe to the inner shoe injected and so connected to this.

It is also known to produce footwear from multi-part, in particular two-layer, soles. the Sole layers, which can consist of different types and / or different colored materials, become molded onto the shaft in successive injection processes.

To achieve the above-mentioned object, a shoe is proposed according to the invention, which is drawn is through the use of at least three different plastics to form different Parts of the shoe, some of which are made of particularly hard material to increase the stability of the shoe, while another part, namely an outsole in a manner known per se made of particularly abrasion-resistant material consists.

The idea on which the invention is based is, quite generally, several different and given

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BATH ORIGINAL

if different colored materials apply to a shoe use, for different parts of the shoe, the materials in terms of color and in terms of the physical properties are selected, as it is according to the respective purpose and task the part of the shoe in question is cheapest

A part of the shoe produced in an injection molding process is preferably an injection-molded shoe frame, which consists of a heel cap, possibly the sole section and toe cap. This shoe frame is according to The task assigned to him is made of a material that is harder than the other "materials. Im In contrast to the usual handling up to now, this shoe frame is used together with the rest Parts of the shoe or, during its production, formed by injection molding and at the same time connected to the shoe

The invention can be used with particular advantages in ski boots, with a shoe frame made of a correspondingly hard material, preferably on the outside of a shaft made of relatively softer plastic. This shoe frame differs from

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ÄAD ORIGINAL

1885274

Previously customary shoe frames are preferably constructed in such a way that, in addition to a heel cap that is pulled up on the shaft and a front cap that is also pulled up, a continuously raised connection between these two caps is injection-molded so that the shoe receives adequate support and dimensional stability over its entire length. Furthermore, the shoe frame is connected in one piece with a wedge sole made of the same material, which at the same time forms the support or contact surfaces for the ski binding. A ski boot designed in this way is opposite from the outside acting P _E U ^cn ACTION absolutely tight. Furthermore, the ski boot is sufficiently firm so that the foot has a good hold in the ski boot because of the shoe frame, which is made of a particularly hard material, and is arranged on the outside. At the same time, this shoe frame ensures increased resistance to mechanical stresses in the area of the most endangered parts of the upper.

The inventive method for producing derartigem footwear is that the T _e ile in aufein-

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on a

subsequent spraying processes, one after the other, putter mounted on a bar or on a shaft or be molded onto previously molded parts,

Further details are provided below using in the drawings illustrated embodiments explained in more detail. It shows:

Pig. 1 a ski boot according to the invention E _r in schematic longitudinal section,

Pig. 2 shows a cross section II-II in the front area of the Ski boots before final completion,

Pig. 3 a phase in the manufacture of a ski boot according to Pig 1 and 2 in cross section in an injection mold,

Pig. 4- a shoe according to the invention in schematic Longitudinal section,

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5 shows a further embodiment of a shoe _9, also in longitudinal section _?

Pig. 6 shows a detail of the closure of a ski boot according to FIGS. 1 and 2 in a side view of FIG Boots,

FIG. 7 shows a section VII-VII from FIG. 6.

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The invention is generally concerned with application of malleable, namely in particular injectable materials in shoes of all types and that should according to the Basic concept of the invention three or more different types and optionally different colored plastics find use on a shoe, namely different types of materials for different parts of the shoe.,

The invention can be used with particular advantages in ski boots and similar high-wear footwear In Fig. 1 is a ski boot according to the invention in longitudinal section shown schematically .. This ski boot consists of a leather lining 10, which covers the entire inside of the Forms ski boot and is connected to a suitable insole 11 in the sole area. This leather lining 10 is attached the actual shaft 12 of the ski boot is molded on, namely molded on. According to the invention, the shaft 12 consists of a medium-hard, ie flexible, but not too hard plastic »The plastic for the shaft 12 is selected so that that especially in the upper area of the ski boot, i.e. in the area of the ankle, good, appropriate properties o The upper 12 is connected in one piece with an at the same time attached to the insole 11

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injected sole layer 13 »so that the upper 12 and sole layer 13 form a single, closed, cohesive one Represent structures.

A reinforcement is molded onto the shaft 12 in the lower area, namely injection molded, which has the effect a shoe frame 14 has. This shoe frame consists of a material compared to the material of the upper 12 hard and continuously dimensionally stable, resistant Material. The shape of the shoe frame is specially selected, namely a heel cap pulled up on the shaft 15 and a likewise raised front cap 16 is provided, which by a less far on the shaft 12 raised central part 17 are connected to one another. The shaft is therefore in the area facing the sole surrounded all around by the supporting shoe frame 14.

The shoe frame is in one piece with a midsole, namely a wedge sole 18 made of the same material like the shoe frame 14 connected. The wedge sole 18 is part of the shoe frame 14 and is together with this molded onto the shaft 12 or onto the sole shell 13. The boot frame 14 is provided with the projections 19 and 20 that are usually present for attaching the ski binding (not shown). This causes a loosening of the sole

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of the ski boot from the shaft through the Bearaprmdhtungen the ski binding or other damage caused by the Ski bindings avoided,

The wedge sole 18 is in a third Spritzvorgamg an outsole 21 molded from another material, namely from a material with a special Abrasion resistance. There are thus three different materials for the ski boots according to the invention different parts of the ski boot are used according to the task assigned to these parts.

To in the production of the shaft 12 by Imforaen to the leather lining 10 the leather lining in .einer for this Provided special injection mold to ensure adequate hold, the leather lining 10 is on a Strips 22 drawn up, preferably with a closed cross-section (FIG. 3). The closed cross-section is made by attaching one free sand to it the other achieved, e.g. with the help of a tying seam 23. The last 22 and the one arranged on it Leather linings 10 are surrounded by several, for example two, molded parts 24 and 25, these molded parts 24

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and 25 leave a cavity for receiving the material for the shaft 12, which is thus attached to the leather lining 10 is molded. After the finished ski boot has been removed, the shaft 12 and leather lining 10 separated by a racing cut in the area of the lacing and there are then the necessary closure means, such as tiaken, eyes, buckles or the like appropriate.

It is also provided that the shaft 12 and leather lining 10 in the area of the closure of the ski boot Form Verseilußlappen 26 and 27. To form the sealing flap 26, a cover flap 28 is already provided in the leather lining 10, which is closed in cross section, which is held in a suitable manner in the injection mold, so that plastic on the outside to form the Shaft 12 or to form the closure flap 26 ai:? 3espriti £ vierden can. In the embodiment according to Pig. 3 is the udder flap 28 on a retaining pin 29 of the one molded part 25 and thereby fixed during the molding of the plastic

BAD OBlGlNAU 109832/0382

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Another special feature of a ski boot according to the The invention is shown in FIGS. With so-called -Jchnallenstiefeln are at least in the upper In the area of the shaft 12 projecting tongues 30 are required for attaching eyelets 31. According to the invention the tongues 30, which are preferably made of leather, are appropriately positioned before the shaft 12 is attached attached to the leather lining 10, for example by a fastening seam 32. This fastening seam 32 is attached in such a way that that the subsequently molded shaft 12 is the connection point and optionally part of the tongues 30 covered. As a result, a better shelf life is achieved. On the other hand, there are no special work steps to attach the tongues 30 after completion of the shaft, but these tongues can already be attached to the leather lining, which is easier to handle.

But the basic idea of e _r invention may not only found in ski boots and similar footwear applications, but also for any kind of use footwear. In Fig. 4

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a shoe is shown in longitudinal section, in which a heel cap 33, toe cap 34 and insole 35 existing shoe frame is molded onto a putter 36, e.g. leather lining, namely by injection molding. At the shoe frame 33, 34, 35 is in turn molded onto the outside of a shaft 37 made of plastic. The shaft 37 is with a provided all around the extension 38, which serves and acts as a frame of the shoe. To this in turn as well as to the Insole 35 is molded onto a sole 39 from a different material, namely by injection molding. The sole can optionally also be of a different color than the shaft 37 and shoe frame 33, 34, 35. The shoe frame 33, 34, 35 consists, as already explained, from a harder, more dimensionally stable material as shaft 37 and sole 39. These individual parts of the shoe are made in successive injection molding processes injected onto the lining 36 drawn on a strip 40 or onto the previously molded ropes

In Fig. 5, a shoe is shown in which the shaft 41 made of leather. At this shaft 41 is first a circumferential frame 42, in the one shown

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-H-

Embodiment together with an intermediate layer 43 molded. To the frame 42 or to the intermediate layer 43, a midsole 44 with a sole cut 45 is integrally formed. This midsole 44 is at least in the front area with, for example, a leather-colored outsole 46 made of particularly abrasion-resistant. fabric provided · This outsole 46 can also, as in be arranged in the illustrated embodiment in the region of the shoulder 47. With this shoe, too, there will be no problems various malleable, namely sprayable .lerkstotfe used, selected according to the tasks.

1 0 S 0 3 2/0 3 3 2

Claims (1)

Ans υ r u c h e 1 . Shoe made entirely or in part from injection ^::; .higem ./erelic material, in particular plastic, whereby several parts of the shoe consist of different 'materials, characterized by the use of at least three different materials to form different parts of the shoe, some of which are made of particularly hard' ! Material consists, while a further part, namely an outsole (21, 46) in a known manner consists of particularly abrasion-resistant material « 2ο shoe according to claim 1, characterized in that a molded shoe frame (14; 33 »34, 35) consisting of heel cap (15, 33)» sole section (18, 35) and preferably Front cap (16, 34) made of hard material is provided itt. (jig. 1 and 3) 3. Shoe according to claim 2, characterized in that the shoe frame (33 »34» 35) is molded onto a lining (36) and 109832/0382 ORIGINAL BATHROOM v / other ropes of the shoe, in particular soles (39) and / or sole parts and shaft (37) on the shoe frame (33, 34, 35) are molded on. (? ig. 4) 4. Shoe, in particular ski boots, preferably according to claim 2, and possibly one or more of the further claims, characterized in that a shoe frame (14) made of hard egg .: material on the outside of a shaft (12) arranged, preferably molded onto this "(Fig. 1) 5ο shoe, in particular ski boot according to claim 4, and optionally one or more of the further claims, characterized in that the shoe frame (14) all around a _; ; i the shaft (12) is raised, preferably i; ü the area of the heel and the toe of the shoe higher than in the area of the joint. (Fig. 1) 6. shoe ,, according to claim 4 uad ^] j, and optionally one or more of the further claims, characterized in that the shoe frame (14) with a wedge sole (1Q) made of the same material has passed, on the underside of which an outsole (£ l ) made of abrasion-resistant ..! Material is arranged, the wedge sole (18) uit projections (19, 20) being provided for a ski binding. (Fig. 1) 10983270382 ** D _0HmmAL 7 ο Shoe according to claim 4 and 6, and optionally one or more of the further claims, characterized by a a.α a lining, in particular a leather lining (10) molded shaft (12) in relation to the shoe frame (14) v / eichereu Material. (Ii ¹ Ig. "1) 3. Shoe according to claim 7, characterized in that the Upper (12) in one piece: a with an anti-insole (11) thin sole (13) is provided. (Fig. 1) 9. Shoe, in particular ski boot according to claim 7, and optionally one or more of the other claims, characterized in that holders, in particular pliers (30) for fastening buckles, eyelets (31), etc. attached to de.ii leather lining (10), in particular sewn on, and through the molded shaft (12) at least in Area of the connection point are covered. (! ig. 6 and 7) 10. Shoe according to claim 3, and optionally one or several of the further claims, characterized in that the shoe frame (33, 34, 35) and the lining (36) a shaft (37) made of a comparatively softer material is scored is. (Fig. 4) 109832/0382 it 11 ". Shoe according to claim 10, characterized in that on the upper (37) ₌ a preferably all-round extension (38) acting as a frame is formed on its underside with a sole (39), preferably made of a different material. (Mg ₉ 4 ), 12. Modification of a shoe according to claim 1, and optionally one or more of the further claims, characterized in that on an upper (41), in particular made of leather, a sole (42, 43, 44, 45, 46, 47) is formed, preferably with a frame (42), optionally with an intermediate layer (43), a midsole (44) with 3-joint and heel (47) and sole cut (45) and an X-roll (46) abrasion-resistant material ρ (S ¹ Xg. 5) 13. Process for the manufacture of footwear with at least three parts made of different injectable materials, characterized in that the parts in successive Injection processes one after the other on one strip (22, 40) drawn up butter (10, 36) or on a shaft (12, 41) or to previously injected Parts are molded. 14. The method according to claim 13, characterized in that in particular ski boots in the region of the closure of the ■■ "■"'' ■ - ¹ '- 109832/0382' BATH ORIGINAL the shaft (1 ^) -dt continuously closed cross-section _.3 injected aiii is then cut open »(Ii ¹ Ig. .2 and 3) V-: ο method nsc-i spoke 13 and 14 »characterized: that the lining (10) -; it - closed - cross section is arranged on the strips (22), ■". In particular by Susanaeiini51ieu der - iunder and also separated according to the litigation process, v / ird. (S ¹ Ig. 2 and 3) 16. The method according to claim 13 and optionally addressed 14 and 15, characterized in that the shaft (12) and jTutter (10) with an animal-standing flap "b-eziehun ^ - wise l ^ utterlappen (26) are formed where "in the butterlappen (23) "is fixed in injection molding, in particular by fastening to a Jlaltestift (29) of the injection mold. For the applicant 3reiaen _r the 26. 1. 1966 öjps ^ .g ,. ■ -..-- ■ .-> - · An.aelaer: De s ^ ia-Perlte S.
Jesen Ό. ii-r e _aexi
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