| JP2006255351 | FRONT CRAMPON LOCKING DEVICE |
| JP11155607 | CLEAT |
| JP04289116 | PARTIAL HARDENING METHOD |
PETERLIN, Mitja (Vreskovo 74b, 1240 Trbovlje, SI)
| PATENT CLAIMS 1. Crampons, comprising a closed elastically deformable tensioning member (2), which is adapted to be rest on each available footwear (9) intended to receive said crampon (1), and simultaneously to hold at least one anti-skid assembly (3, 4), which is furnished with each desired number of teeth (35, 45) and is placed in each appropriate position on the bottom surface of the sole (93) of the footwear (9), which is faced towards the ground, wherein said tensioning member (2) in the area of the front portion and the rear portion of the footwear (9) preferably consists of at least two circumferential straps (22', 22"; 23', 23"), which are interconnected by means of transversal or longitudinal straps (24', 24"; 25), characterized in that such crampon comprising a closed tensioning member (2), which is furnished with a desired number of attaching eyes (211, 212, 213, 214, 215, 216, 217, 218), as well as a front anti-skid assembly (3), which is adapted to be rest onto the front portion (931) of the sole (93) being faced towards the ground, and a rear anti-skid assembly (4), which is adapted to be rest onto the heel portion (932) of the sole (93) of the footwear (9) being also faced towards the ground, wherein said front anti-skid assembly (3) and the rear anti-skid assembly (4) are on the one hand linked to each other and on the other hand each per se linked to said attaching eyes (211, 212, 213, 214, 215, 216, 217, 218) of the tensioning member (2), which are to this aim furnished with appropriate passages (210). 2. Crampons according to Claim 1, characterized in that the front anti-skid assembly (3) and the rear anti-skid assembly (4) are connected to each other by means of at least two flexible longitudinal bindings (51, 52). 3. Crampons according to Claim 2, characterized in that each longitudinal binding (51, 52) comprises at least one wire clamp (6). 4. Crampons according to Claim 2, characterized in that each longitudinal binding (51, 52) optionally comprises at least one chain link. (7). 5. Crampons according to one of Claims 2 to 4, characterized in that each longitudinal binding (51, 52) is linked to at least one adjacent attaching eye (215, 216) of the tensioning member (2). 6. Crampons according to one of the preceding Claims, characterized in that the rear anti-skid assembly (4), which is foreseen to be situated in the area of the heel portion (932) of the footwear (9), is linked on the one hand to said longitudinal bindings (51, 52) and on the other hands to at least two attaching eyes (213, 214) of the tensioning member (2). 7. Crampons according to Claim 6, characterized in that the anti-skid member (41) of the rear anti-skid assembly (4) comprises, in addition to at least three towards the ground protruding teeth (45), at least one passage (40), which is adapted to interconnect said member (41) with each corresponding longitudinal link (51, 52) as well as with at least one passage (40) intended for establishing connection of said member (41) with each belonging eye (213, 214) of the tensioning member (2). 8. Crampons according to one of the preceding Claims, characterized in that the front anti-skid assembly (3) consists of a front anti-skid member (31), a rear anti-skid member (32) and two lateral anti-skid members (33, 34), wherein the rear anti-skid member (32) is linked to each of lateral anti-skid members (33, 34) and at the same time also to longitudinal bindings (51, 52), while the front anti-skid member (31) being inked to each of lateral anti-skid members (33, 34) and to each corresponding eyes (211, 212) of the tensioning member (2), wherein each of said linked members (33, 34) is linked to each corresponding eye (217, 218) of the tensioning member (2). 9. Crampons according to Claim 8, characterized in that the linked interconnection among the anti-skid members (31, 32, 33, 34) of the front anti-skid assembly (3) is established by means of wire clamps (6) and that to this aim, each of said members comprising (31, 32, 33, 34) at least one appropriately positioned passage (30). 10. Crampons according to Claim 8, characterized in that the linked interconnection among the front member (31) of the front anti-skid assembly (3) and each belonging eyes (211, 212) of the tensioning member (2) is established by means of wire clamps (6), which are inserted throughout appropriate passages (30) on the member (31), in combination with appropriate chain links (7), by means of which said clamp (6) is attached to each belonging eye (211, 212) of the tensioning member (2). 11. Crampons according to Claim 8, characterized in that the linked interconnection among each lateral anti-skid member (33, 34) of the front anti-skid assembly (3) and each belonging eyes (211, 212) of the tensioning member (2) is established by means of wire clamps (6), which are inserted throughout appropriate passages (30) on members (33 ,34), in combination with appropriate chain links (7), by means of which said clamp (6) is attached to each belonging eye (217, 218) of the tensioning member (2). 12. Crampons according to Claim 8, characterized in that the linked interconnection among the rear anti-skid member (32) of the front anti-skid assembly (3) and each belonging bindings (51, 52) is established by means of a pair of wire clamps (6), which are each per se inserted throughout the belonging passage (30) on the member (31) and each of them being a part of said binding (51, 52). 13. Crampons according to one of the preceding Claims, characterized in that at least the interconnection between each neighboring anti-skid members (31, 32, 33, 34) of the front anti-skid assembly (3) adjacent to belonging eyes (211, 212) of the tensioning member (2) is additionally reinforced by means of at least one additional clamp or binding (8). 14. Crampons according to one of the preceding Claims, characterized in that the tensioning member (2) is thickened in the area of attaching eyes (211, 212, 213, 214, 215, 216, 217, 218). |
The present invention relates to crampons, namely to a requisite, which may be mounted onto each footwear prior to walking on a slipping terrain in order to prevent the footwear from sliding.
In accordance with the international patent classification, such inventions belong to human necessities, namely to footwear and attachments for footwear, and in particular to non-skid attachments for footwear.
The purpose of the invention is to create a simple and efficient crampon, which could be quickly and easily mounted onto each footwear regardless to the size thereof, and upon that also quickly and easily removed, although the crampon should be reliable placed onto the footwear during the use and all available antiskid members on the footwear should be available in all active zones of the sole, namely both in the front portion and also in the rear portion, and moreover, such crampon should be useful both in winter or summer conditions and therefore not only the purposes of climbing or trekking, but also for walking on inclined and slipping terrain, e.g. for the purposes of forestry, hay-harvesting, or the like. WO2005/009165 describes an anti-skid requisite in the form of a footwear consisting of flexible material, by which appropriate protruding members are mounted within said elastic material both in the front portion and the rear portion of the sole in order to prevent the footwear from sliding on the slipping terrain. Due to said flexibility, such requisite should be simply dragged onto the footwear. Such requisite might probably be used on particular groups of footwear, e.g. on boots of particular size, and the possibilities of exploitation are therefore pretty narrow. On the other hand, embedding such pretty hard and against crushing and wearing resistant protruding members directly into said elastic material is normally very problematic, since during the walk said members are exposed to essential loadings, and also each area, in which such protruding member is embedded, is extremely loaded. Consequently, such requisite is useful in a short-term exploitation, e.g. by crossing of an ices area, but not also e.g. in climbing or for the purposes of performing professional activities in forestry or hay-harvesting.
An analogous solution has been suggested in EP 0 250 634, where the protruding members are mounted within appropriate straps, which extend in the area of the sole transversally with respect to each walking direction. On the one hand, such approach allows more possibilities with respect to mounting said protruding elements into each strap, while on the other hand, due to flexibility of said straps the footwear may be easily displaced relatively with respect to corresponding straps and consequently less reliable contact towards each ground. In general, deficiencies seem to be pretty similar to those, which have been mentioned in relationship with the previously discussed requisite.
Still further, CA 2,225,301 has suggested a requisite, which also consists of a flexible and resilient part, which is adapted to the footwear and includes a sole-like T/SI2009/000003
bottom portion which may thanks to said features be placed along the front and heel portion of the footwear and which is furnished with protruding members for preventing footwear from sliding on the slipping terrain. Said requisite is attached to the footwear both in the front and also in the rear portion thereof. Consequently, the requisite must be well-adjusted to each particular footwear, since on the contrary by walking the requisite might be removed from the footwear either in the front portion or in the rear portion thereof, which might the lead to sliding. Also in this case certain problems may arise due to mounting of protruding anti-skid members directly into a relatively flexible and resilient material.
Moreover, a requisite is described in JP 2006 110 354, which consists of a flexible ring of a resilient material, within which a ventral area is foreseen, which is connected to said ring via resilient bindings, by which said ring, bindings and the central area may normally consist of the same material. A rigid anti-skid member comprising several tips protruding towards the ground is mounted directly into said flexible material of the central area. When the user puts the footwear onto the central area and extends the ring around the vamp and the heel portion, the requisite is quickly mounted onto the footwear, upon which it ay also be quickly and easily removed. Besides, such requisite may be placed on various footwear regardless to the size thereof. The anti-skid member is situated either below the front portion or below the rear portion of the footwear, so that only a part of footwear is then prevented from sliding, which requires a particular attention of each user during the walk. In addition, due to such incorporation of the anti-skid member, the probability of undesired removal thereof from the material of the central portion of the requisite is relatively high, so that also this requisite is intended only for the purposes of a short-term use. The present invention refers to crampons, comprising a closed elastically deformable tensioning member, which is adapted to be rest on each available footwear intended to receive said crampon, and simultaneously to hold at least one anti-skid assembly, which is furnished with each desired number of teeth, and is placed in each appropriate position on the bottom surface of the sole of the footwear, which is faced towards the ground, wherein said tensioning member in the area of the front portion and the rear portion of the footwear preferably consists of at least two circumferential straps, which are interconnected by means of transversal or longitudinal straps.
Such crampon according to the invention comprises a closed tensioning member, which is furnished with a desired number of attaching eyes, as well as a front antiskid assembly, which is adapted to be rest onto the front portion of the sole being faced towards the ground, and a rear anti-skid assembly, which is adapted to be rest onto the heel portion of the sole of the footwear being also faced towards the ground, wherein said front anti-skid assembly and the rear anti-skid assembly are on the one hand linked to each other and on the other hand each per se linked to said attaching eyes of the tensioning member, which are to this aim furnished with appropriate passages.
The front anti-skid assembly and the rear anti-skid assembly are connected to each other by means of at least two flexible longitudinal bindings. Each longitudinal binding preferably comprises at least one wire clamp, and when desired also at least one chain link. At the same time, each longitudinal binding is linked to at least one adjacent attaching eye of the tensioning member. The rear anti-skid assembly, which is foreseen to be situated in the area of a heel portion of the footwear, is linked on the one hand to said longitudinal bindings and on the other hands to at least two eyes of the tensioning member. The anti-skid member of the rear anti-skid assembly comprises, in addition to at least three towards the ground protruding teeth, at least one passage, which is adapted to interconnect said member with each corresponding longitudinal link as well as with at least one passage intended for establishing connection of said member with each belonging eye of the tensioning member.
The front anti-skid assembly consists of a front anti-skid member, a rear anti-skid member and two lateral anti-skid members, wherein the rear anti-skid member is linked to each of lateral anti-skid members and at the same time also to longitudinal bindings, while the front anti-skid member being inked to each of lateral anti-skid members and to each corresponding eyes of the tensioning member, wherein each of said linked members is linked to each corresponding eye of the tensioning member.
Said linked interconnection among the anti-skid members of the front anti-skid assembly is established by means of wire clamps, and each of said anti-skid members comprising at least one appropriately positioned passage for such a purpose.
Each linked interconnection among the front member of the front anti-skid assembly and each belonging eyes of the tensioning member is established by means of wire clamps, which are inserted throughout appropriate passages on the member, in combination with appropriate chain links, by means of which said clamp is attached to each belonging eye of the tensioning member. The linked interconnection among each lateral anti-skid member of the front antiskid assembly and each belonging eyes of the tensioning member is established by means of wire clamps, which are inserted throughout appropriate passages on members, in combination with appropriate chain links, by means of which said clamp is attached to each belonging eye of the tensioning member.
The linked interconnection among the rear anti-skid member of the front anti-skid assembly and each belonging bindings is established by means of a pair of wire clamps, which are each per se inserted throughout the belonging passage on the member and each of them being a part of said binding. At least the interconnection between each neighboring anti-skid members of the front anti-skid assembly adjacent to belonging eyes of the tensioning member, which is preferably thickened in the area of attaching eyes, may be additionally reinforced by means of at least one additional clamp or binding.
Now the invention will be described in more detail on the basis of a preferred embodiment, which is shown in the accompanied drawings, where
Fig. 1 is a schematically shown crampon during the use and observed in a direction towards the top area of the footwear, on which it is placed;
Fig. 2 is a schematically shown crampon during the use and observed in a direction towards the bottom area of the footwear, on which it is placed.
Fig. 3 is a top view of a separately presented tensioning member;
Fig. 4 is a cross-section along the plane IV - IV according to Fig. 3;
Fig. 5 is a top view of one of the longitudinal anti-skid members of the front antiskid assembly of the crampon according to the invention;
Fig. 6 is a side view of the member according to Fig. 5; Fig. 7 is a perspective view of one of the lateral anti-skid members of the front anti-skid assembly of the crampon according to the invention; Fig. 8 is a top view of the anti-skid member of the rear anti-skid assembly; and Fig. 9 is a side view of the member according to Fig. 8.
Crampon 1 according to the invention consists of a closed tensioning member 2, by which is on the one hand interconnected with a front anti-skid assembly 2 as well as with a rear anti-skid assembly 3, by which also said anti-skid assemblies 3, 4 are linked to each other. In this, said tensioning member 2 is adapted to be placed onto each footwear 9 in such a manner that it is tensioned around a cap 91 and a heel portion 92 of the footwear 9. During the exploitation of the crampons 1, said front anti-skid assembly 3 is located below the sole 93, namely below the front area 931 of the sole 93, while the rear anti-skid assembly 4 is present below the rear portion 932 of the sole 93 of the footwear 9.
Said tensioning member 2 preferably consists of a flexible elastic material, when desired e.g. of rubber or the like, comprises attaching eyes 211, 212, 213, 214, 215, 216, 217, 218, within appropriately reinforced areas and which are preferably arranged apart from each other, where in the embodiment according to Fig. 3 two apart from each other positioned eyes 211, 212 are arranged in the area of the cap 91 of the footwear 9, further two similarly apart from each other situated eyes 213, 214 are located in the area of the rear portion 92 of the footwear 9, two further eyes 215, 216 are arranged on the opposite sides of the tensioning element 2 in the area of the rear portion 92 towards the cap 91, while the residual two eyes 217, 218 are also arranged on the opposite sides of the tensioning element 2 in the central area in the lateral surfaces adjacent to the sole 93. Besides, in the area of placing onto the forward and the rearward portion of the footwear 9, said tensioning member 2 is formed of two pairs of straps 22', 22"; 23', 23", and longitudinal or transversal straps 24', 24"; 25 are between these pairs of straps 22', 22"; 23', 23" are arranged there-between, so that the tensioning member 2 is then easily adapted to each available footwear regardless to the shape or size thereof, by which also both anti-skid assemblies 3, 4 are then firmly and reliable held in each appropriate position on the bottom surface of the sole 93 of the footwear 9, which is faced towards the ground.
The rear anti-skid assembly 4 of the crampon 1 (Figs. 8 and 9) comprises an antiskid member 41, which is on the one hand by means of bindings 51, 52 linked to the front anti-skid assembly 3, and on the other hand to the corresponding ears 213, 214 of the tensioning member 1.
The front anti-skid assembly 3 of the crampon 1 preferably consists of longitudinal two anti-skid members 31, 32 (Figs. 5 and 6) arranged on appropriate longitudinal distance apart from each other, as well as of two lateral anti-skid members 33, 34 arranged on appropriate transversal distance apart from each other (Fig. 7). Each of said longitudinal anti-skid members 31, 32 is simultaneously linked to both lateral anti-skid members 33, 34, which are each per se linked to each residual longitudinal anti skid member 31, 32. The front longitudinal anti-skid member 31 is linked to corresponding eyes 211, 212 of the tensioning member 1, while the rear anti-skid member 32 of the front anti-skid assembly 3 is via previously mentioned bindings 51, 52 linked to the rear anti-skid assembly 4. Also the lateral anti-skid members 33, 34 are each per se linked to corresponding eyes 217, 218 of the tensioning member 2. Moreover, each lateral member 33, 34 of the front antiskid assembly 3 of the crampon 1 is linked to each corresponding eye 217, 218. Besides, each binding 51, 52 between the front anti-skid assembly 3 and the rear anti-skid assembly 4 is linked to a corresponding eye 215, 216 of the tensioning member 1.
Consequently, when placed onto the bottom surface of the sole 93, which is faced towards the ground, i.e. during exploitation of the crampons 1, said members 31, 32, 33, 34 are maintained in the spaced state apart from each other, and moreover, also the front anti-skid assembly 3 and the rear anti-skid assembly 4 are held apart from each other by means of said tensioning member 2, although being simultaneously interconnected by means of said bindings 51, 52. At the same time each binding 51, 52 between said assemblies 3, 4 is tensioned by means of the tensioning member 2, which is herewith tensioned and firmly held on the surface around the footwear 9 regardless to the shape and size thereof.
In a preferred embodiment of the crampon 1 according to the invention, the linked interconnection among said anti-skid members 31, 32, 33, 34 is established by means of wire clamps 6 and chain links 7. Analogously, said longitudinal bindings 51, 52 may also be established by means of wire clamps 6 and chain links 7. In this, said wire clamp 6 means a straight or curved wire, e.g. a resilient V-shaped wire comprising hooks on its end portions or having U-shaped end portions, which is then capable to hold a similarly shaped member or a chain link.
In the shown embodiment, the interconnection between the eyes 211, 212 and the front anti-skid member 31 of the anti-skid assembly 3 is additionally improved by means of a wire clamp or binding 8. For such purposes, each eye 211, 212, 213, 214, 215, 216, 217, 218 is furnished with a passage 210, which is adapted to cooperate with each corresponding clamp 6. Analogously, each anti-skid member 31, 32, 33, 34, 41 comprises a desired number of passages 30, 40, which are all adapted to cooperate with each corresponding clamp 6 or optionally with a chain link 7. Besides, each anti-skid member 31, 32, 33, 34, 41 comprises a required number of correspondingly arranged teeth 35, 45, by means of which then on the basis of correspondingly arranged anti-skid assembly 3, 4 each expected functionality of the crampon 1 is assured.
As soon as the user inserts the front portion 91 of the footwear 9 throughout the closed tensioning member 2, the front portion 931 of the sole 93 is rest onto the front anti-slid assembly 4. Upon that, the tensioning member 2 is extended in the longitudinal direction of the footwear 9 apart from the rear portion 932 or is simply pulled around the heel portion 92, unless also the rear anti-skid assembly 4 is rest onto the rear portion 932 of the sole 9. By this, the crampon 1 is definitively attached onto the footwear 9. The tensioning member 2 is perfectly adapted to the footwear 9 regardless to the shape or size thereof, and the front anti-skid assembly 3 and the rear anti-skid assembly 4 are firmly held and rest on both active gripping surfaces of the footwear 9, namely on the front portion 931 and the rear portion 932 of the sole 93 of the footwear 9. The crampon 1 is then quickly and easily removed by repeating said steps in the opposite way.