DE2030633A1 - Process for the production of mountain boots made of plastic, in particular ski boots, by using several materials with different properties, and ski boots obtained by the process - Google Patents

Description

Patent attorney June 19, 1970

Dipl.-Ing. Hermann Barth
Nürnberfl, Bucher Strasse 3

- m.Z. 2859 -

Ruggero Zanatta Via Gandolfo Nervesa della Battaglia (Prov. Treviso) - Italy

Process for the production of plastic mountaineering boots, in particular ski boots, by Using several materials with different properties, and obtained by the process Ski boot »

The present invention relates to a method for the production of plastic mountaineering boots, in particular of ski boots, by using several materials with different properties, such as different consistency and different color. The invention also relates to mountain boots, in particular ski boots, made according to this method were received »

According to the current state of the art, mountain boots are used Made of plastic, especially ski boots, obtained by injecting synthetic resins into appropriate molds »

" 1 -

1098327107 «

However, the methods currently used have some disadvantages, some of which are due to the one that has not yet taken place Fusion of the technical requirements that arise in conventional shoe work with those of plastics processing in forms, and partly due to the restrictions due to the high cost of the necessary for this type of processing Shapes can be traced back · One property seems to be the most important one, namely the plastic shoe to give the various additional degrees of flexibility on the various zones of the shaft »One has so far tried in certainly unsuitable form to these properties by changing the strengths of the only one injected material ", with a disproportionate increase in the weight of the shoe occurred.

In other cases, attempts have been made to press several materials with different properties onto the same piece, however, there were no satisfactory results on the product Achieved results because, due to the high molding cost, the main problem was a shoe with degraded Create weight and at a low price at the expense of the aesthetic properties of the shoe xu

The aim of the present invention is the production of mountain boots, in particular of ski boots with properties that come as close as possible to those of conventional leather shoes, by adding two or more plastic materials with different physico-mechanical properties are used in the peculiarity of dai conventional high-top shoes Properties to match and at the same time the To use the advantages of the technology of plastics production made of flexible or flexible according to the requirements rigid materials can be obtained, with the various technological properties of different types, in plastics melted or injected into the same form, with the possibility of using the desired color in every part of the sole or the upper

2030833

to leave visible

Another aim is to economically improve some physical, mechanical and aesthetic properties the product obtained by means of suitable technological measures and the correction of some negative restrictions, which are typical for series production using injection molding of plastics «

These ZMe are according to the invention with the method for Production of plastic shoes by using

achieved multiple materials with different properties, which is characterized in that it is the injection of a first plastic material with predetermined physical parameters Comprehensive properties in a first injection molding farm the shaft '' which consists of 'at least one core and \ «> ~ at least a hollow form, and the following injection at least one other plastic material with others physical-mechanical properties as, those of the first Plastic material in at least one form of another Provides training as that of the first form, with -between the various injection phases the introduction of reinforcements kimgöolenienteri at different points of the injectedc »ii Material is provided «

Preferably? owns eiei * produced according to thiseio process e Shoe a first ?, internal structure in lesondera / flexible and

1 ri cht a Kunsi material and a "7W: iU _'(with respect to the CrPic structure of transmitter lying structure * ve] the serve partially <· covers xnid plastic grflsserer" i ι i ί hei i Iu fdfthl t!

V ^T rit (-: - r <i -Ednrelhei t en dos e ^ ri iiiduii ^ fjfierBäi'sf n Verfahrrüf -. «Incl .ienitli rather egg-success» iidcii Beschi'f ibung eiiiei voi ^ ug.vT / 'ι · - pen 'Ausührunfii-'i'orm dnsVerfalii-ens; ίΐπ J ι "reils ni> (( inef -JI ¹ I schulies zu ent ne-hnmn, -iiv 1 chee at R | 4 rl.rreirt im / -ufiamnie -iihaiJf- ■ with br ili egeuideri sign chmniireii nearer · ΐ purifies ι 11 <l <

Jti de ι drawing yeigt lif: ¹ T die -Sprit i-'gu. '* Sfoi tu ium Spi * itr «n des (irimdelemoiit ob des Sc-huTies' (Qm-rrelmi 11),'!" Ig «

2 di (2 Γοπη for a i'weitciJi Hpri ts toi passage to the I r? Eung a Uluir7u; ic3fs, Fig «3 the .core with dom Rrmidübei Kti {» _f orliälteii

109832/107 «

with the first spraying and with the reinforcement already arranged, let a th j Fig, k be the external appearance of the finished shoe; and FI g ₍ 5 a section through the Borg shoe with the inner pouches made of foamed resin *

For the purpose of simplified description of the generation process the simplest case of the use of two kinds of fen is assumed by KiuistJiarz, which is a white or black may have a different color and flexibility, apart from the type of material, each depending on the intended machining and the desired final one Properties must be chosen «

Consisting of a shape for the injection of plastics of a separable core 1 and from a die 2 with two or more shells to facilitate the removal of the molded part and the ¹ Composition of new models is injected 3, the reasons ement!, Which, for example, vr <.iisämn, lighter and more flexible resin * After gluing in suitable zones of "reinforcements" 5 ordering of more or less flexible material, which "is compatible with the synthetic materials forming the shoe""in the push, in ? certain areas better geirtlnschte properties lend κ "ver, v _s ill after the shells, the hollow shape of the 'ι- -fit:? e by ei'io nt-ue Matriae 2 ¹ were replaced, the'.'riindelentent 3? In that certain zones are freely pelassc-n, the second synthetic resin ^ injected, which swore its edge now has special strength properties *

In this way a two-colored one is obtained. Shoe with signiimifr in front of W ¹ μt1i «rriter and different flexibility _f with. '? F? Fi - (jrii i (-i> Ver * .t H.rt'uripen and de? * Mögli cliFe-it _f with already; < * 5 {- < ^τ · ι; πΊο (en! Ir-: iiiilrmt: ii einipe Metf> J Ii -iXi (- r-wi'sehen den H far κ- -. '-Hui' H-iiTn ti? < i '! ("j iin & jni ίν -"<τ · {* · ρ-ηΓ * "<ί. ^f s.-i 1. vt, 5 re

the IU p »n? oK j'flr Cv: BrJ: j ■ *

· < In V-iiiiiicUf 'jB ^: isii (--inc- i.xun-'lmmg der dlf ί? ΊΐΓ ^'oJ.'J iviitxjar wA> {- l} t: h isis I>it;

BAD ORfGiNAL

2030833

Exercise between layers can, depending on the requirements .and..the -speciality of the connection and working conditions be done both schematically by gluing and mechanically by means of openings ■ 6, which are provided during the first casting and in which the material of the following injection molding phases enters * The shoe obtained in this way can be used directly and can be achieved by forming a fussi hettes Inside »which is obtained from foamed resin, be added «This measure can be the anatomical one when using two layers 7-8 of different densities Recording of the puss in the shoe within other dimensions enable, which offers the possibility to limit the number of shapes »

Another technological step, which on a case-by-case basis It may be necessary to spray or coat it with a brush with suitable abrasion-resistant overcoat lacquers. These paints are already available in stores and are with Dyes pigmented or clear, creating the possibility It offers other aesthetic effects in addition to the basic properties of surface abrasion resistance to create"

All of the operations described can take place simultaneously or alternatively, with the exception of the first and the second Melting process with the introduction of the reinforcements «these Work steps are as described for the labor sharing Procedural essential.

It is obvious that the procedure is applicable can be largely modified without the scope of the invention .to exceed, the materials used their properties and their number as required can be chosen »

BATH ORIGINAL

1098-32 / 107 ..

Claims (1)

Patent claims » 1 Process for the production of plastic mountaineering boots, ins particular of ski boots, characterized by the use of several materials with different properties, that it is the injection of a first plastic material with predetermined physical-mechanical properties in a first injection mold comprising the shaft, which from consists of at least one core (i) and at least one hollow form (2), and the subsequent injection of at least one further plastic material with different physical-mechanical properties than that of the first plastic material in at least one wide shape (2 *) of a different design than that of the first form provides »with the introduction of reinforcing elements (5) at different between the different injection phases Place the injected material is provided. 2 »The method according to claim 1, characterized in that the first plastic material has greater flexibility and is lighter and that the second plastic material on the first plastic material is sprayed on, preferably some areas of the surface are left exposed, and made more rigid Made of plastic. 13 »Method according to one of the preceding claims, characterized characterized in that the reinforcing elements are placed on a further mold for a further injection molding process the mentioned plastic materials are glued » ■ * »Method according to one of the preceding claims, characterized in that characterized in that during the injection process metal elements which are intended to bii ~ the closing organs of the shoe which are partially embedded between the layers of plastic material » 5 »Method according to one of the preceding claims, characterized marked that the different layers of Kunstatoffmaterlal to each other by means of a chemical 109632/107 §ÄB ORIGINAL ■ exercise ever driving- to be made to adhere » 6 ·. Method according to one of claims 1 to ^, characterized ß draws that the various layers of ivunst-stofimaterial to each other by mechanical locking by means of ge ~ oipieter openings (6) into which the material of the following Injection occurs, is made to adhere "" 7 »Method according to one of the preceding addresses, thereby characterized in that at least one inside the shoe Layer (7 »8) made of foamed plastic is provided. H, method according to one of the preceding claims, thereby, marked that on the outer layer forming the shoe a paint is applied from plastic material by spraying or with a brush of anti-abrasive agents « 9 «Method according to one of the preceding claims, characterized marked; that for the various fuel processes Shape with the same core (1) is used « 10. Mountain boot obtained according to the method according to claim 1 _f, characterized in that it has a first inner structure (.3) consisting of plastic material "-special -kigenschaft"! With regard to flexibility and low weight, ianti at least one second structure (Ό, which is outside the first 'structure to partially cover the same anpf-oi-dnet is trad made of plastic material with better rigidity »' 11. Shoe nfieh claim 10, _{characterized%} since ^ f ^ he ^ in the most stressed ones with Verstarkungsei eweii (ij) provided \ a \% in the gpeignet t-.v ^ U: -. '\ ^ << i r? ui a di-rtuii ζ χ located! 1 top plastic layer br: Ir: - ^ if: i aindc BATH ORIGINAL 109632/1079