EP2910287A1 - Tool for the setting and removing of slalom poles on snow covered skislopes - Google Patents

Abstract

Tool for setting and removing bars on snow-covered slopes consisting of a vertical element (1, 11) with C- or L-shaped cross-section which can be attached laterally to the bar (B) and horizontally protruding handles (2) which at the top Part of the said vertical element are provided while on the lower part driving projections (4a) are provided which at the upper end of the, on the rod (B) mounted, tip (C) engage, wherein a drill tip (A), or the rod (B ), is retained in the vertical element by at least one clip (5), and wherein the rod (B) can be retained by lateral tongues (2x) protruding from the pivotable (2r) handles (2).

Description

It is known to use any articulated and / or flexible rods which are installed on snowy slopes along the edge of the slopes for the purpose of marking the track or for securing nets or other protective devices. Said rods are provided with an externally threaded point, with a point provided with anchoring means ( CH 702588 ) or with a tip with expansion dowel effect. Between the point and the rigid or flexible bar, in the case of bars for marking the route of a special slalom, a giant slalom or the like, a connecting piece is provided which, in the case of shocks, the elastic pivoting between tip and bar, with subsequent retrieval in the aligned position with the, anchored in the snow peak. In particular, the tips which, for the purpose of anchoring in the snow layer, use a thread or the system of a Spreizdübels, have at the top notches or other protruding elements or recesses for the use of a tool to transmit the tip a screwing or boring movement, or to effect spreading or shrinking of the dowel tip within its seat in the snow layer. These known devices have a substantially T-shape (see Google: http: www.liski.it/prodotti/fotomini/10401.jpg) and consist of a vertical part with a C-shaped or L-shaped cross section, between the free longitudinal flanges to be able to pick up the pole and from two horizontally protruding handles at the upper end of said vertical part. This vertical element has protruding elements or notches on the lower side, which are suitable around the upper part of the tip of the bars to intervene and to transmit a rotational movement about its vertical axis, wherein the T-shaped protruding from the upper part handles serve as levers. The individual parts of said known, known tools are made of metal profiles which are normally made easier by milling of recesses and are joined together by welding. Said, known tools are provided at the top, except with the area with the handles, with an axially projecting guide hook to support the device, during the working position, on the rod. As a result, said tools are rather heavy and, because of the protruding handles and the upstanding guide hook, are bulky and transport is inconvenient and causes accidents.

From the GB 2092638 A is a tool for setting a support member for a parasol or the like in the ground known; the penetration into the ground by screwing by turning a tubular element which can hold handles in the upper part which can be inserted through a transverse bore, are pivotally mounted on the tubular element or which have a square or polygonal approach which can be used against rotation in the pipe element. Said pipe element acts as a support element for the parasol handle, such pipe elements are not suitable as support elements for rods on snowy slopes, because these rods are largely equipped at the height of the snow surface with a resilient joint.

From the EU 0312675 a support element for parasols is known which can be rotated by a transversely, horizontally inserted, handle to the vertical penetration, or unscrewing of the support element to effect. The handle has the form of a simple rod or the shape of a key with a polygonal seat. These handles can be held laterally adjacent to the support member by means of elastic clips after use. Such a support element is not for the anchoring of rods on snowy slopes suitable because these rods must be elastically bendable above the snow surface of the slope.

The invention has the object to provide a tool of the aforementioned type which has a light, functional and advantageous construction, free of welds and cutouts for the purpose of relief, which has an upper protruding guide hook or instead of this elastic clip element, which may be collapsible or dismountable so as not to be bulky and which is suitable to receive the drill bit used to create the drill holes for the use of the tips of the rods in the snow layer.

Furthermore, the invention has the object to provide an efficient tool which, on the part of the user, can be transported in full safety and captive and possibly together with the drill bit which is secured inside the tool and together with the hand drill, which on the shaft the drill bit is mounted so that at any time the tool and / or the drill bit are ready for use together with the hand drill.

Furthermore, the invention has the object to produce a tool of the type mentioned in lightweight plastic or light metal alloy wherein the structure of the tool according to the invention is chosen so that a cost-effective production, e.g. is possible by injection molding.

To solve these objects, the invention proposes a tool which has an assemblable structure, wherein the vertical element, during screwing or unscrewing, possibly without known guide hooks, receives the rod, this part itself coaxially retains said rod while the same vertical element during transport, can completely pick up the drill bit for making the holes in the snow layer to accommodate the tips of the rods.

The handles can, as is known, be fixedly connected to the vertical element or, according to the invention, also consist of a single element, they can be connected captively to the vertical element. The handles may occupy a position applied externally to the vertical element to reduce its outer dimensions or take a T-shaped position by the handles are hinged or insertable in the upper region of the vertical element. Advantageously, the parts forming the tool according to the invention are substantially made of plastic, preferably of fiber-reinforced plastic, those parts which are subjected to special wear and mechanical stress being made of metal and being used during the manufacturing process or subsequently inserted and possibly fastened become. For manufacturing, special innovative manufacturing technologies such as "IMF IN MOLD FORMING" or "FIT HYBRID" technology are available, which provide for the use of fiber-reinforced semi-finished products in sheet form, which are subjected to an initial three-dimensional deformation and, in the course of a final deformation, within a mold, by injection of thermoplastic resins, or by hot working fiber reinforced plastic plates, by prior heating by infrared steels and by preparing a layer structure by means of thermoplastic resins, then be prepared by pressurizing by means of a fluid in a mold. In particular, the said production techniques are suitable for producing elements with tubular cross-section or with inner chambers, advantageously the vertical element of the inventive tool with double outer wall of fiber reinforced plastic, also by pultrusion, can be produced, wherein inner longitudinal chambers are formed to accommodate metallic inserts at the lower end which can attack at the upper end of the tip of the rods to the rotational movement, for the purpose of screwing in or unscrewing the tips to reach and to accommodate at the top of metallic inserts for the pivoting linkage or the use of the handles can. In particular, by the IMF IN MOLD FORMING technique, the production of reinforcing and / or stiffening ribs on the outer surfaces is possible which the element a high gives mechanical strength, possibly also, during the deformation process, metal inserts are attached. The invention does not exclude the production by extrusion of thermoplastic material or by pultrusion of fiber-reinforced plastic, without precluding the production of aluminum or light metal alloy, for example by injection molding.

In this last case, the invention proposes to make the two lateral flanges of the vertical element double-walled and to fill the gap with lattice-like arranged slats so that a demolding transverse to the longitudinal axis is possible. The rear wall which connects the two said flanges, however, is executed in accordance with the invention and provided on the inner surface with reinforcing or stiffening ribs which overlap at least partially with the truss-like slats of the two flanges. This arrangement causes on the one hand a good dimensional stability under rotary load, a lightweight design and easy demolding.

According to the invention, in the case of the variant with two operating handles, these with one of the ends on the two sides at the upper end of the vertical element, according to horizontal, mutually parallel axes, pivotally be articulated, so that they are a (space-saving) outside, laterally at the vertical Element adjacent position and a horizontal working position can take. The two positions can be secured by an elastic snap-action device acting between the handles and the vertical element, and / or by a metallic elastic element which also serves to suspend the tool, eg on the wearer's belt. The hinged handles according to the invention may, on the side which corresponds to the longitudinal opening for receiving the bar on the vertical element, be provided with projecting tongues which are suitable, in the working position, for retaining the bar in said seat in the vertical element.

The invention does not exclude that the use of the handles takes place vertically, within vertical seats provided at the upper end of the vertical element.

Advantageously, the tool according to the invention is provided with known trailing or trailing elements to captive, possibly together with the drill bit and the hand drill to secure the user during its change of position on the track to stand ready to use anytime immediately available.

The invention will be explained in more detail with reference to some, in the accompanying drawings schematically illustrated, preferred embodiments of the tool according to the invention for the setting and removal of rods on snowy slopes, doing the drawings meet purely explanatory, non-limiting purpose.

The Fig. 1 is a perspective view of a tool according to the invention which contains a drill bit equipped with pivotally hinged handles in a space-saving position, the handles have laterally projecting tongues to retain the rod.

The Fig. 2 is a perspective view of the same, in Fig. 1 tool shown without drill tip and attached to a rod so that it acts on the top of the rod, the handles are in working position and the laterally projecting tongues hold the rod back inside the tool.

The Fig. 2a shows in perspective the upper end of, in the Fig. 1 and 2 illustrated tool with the handles in working position and without laterally projecting from the handles tongues.

The Fig. 3 shows in perspective the in the Fig. 1 and 2 Tool shown with the vertical element seen from the closed side, with the handles in working position and provided with a metallic element to secure the tool to the user, this element also acts as a spring to determine the working position and the space-saving position of the handles.

The Fig. 4 shows the top view of in Fig. 3 illustrated tool.

The Fig. 5 shows in perspective the vertical element of the tool according to the invention, which is made of a profile with inner longitudinal chambers, with the handles consisting of a single part, which is stowed inside the vertical part and is retained by an elastic clip.

The Fig. 6 shows a perspective exploded view of the individual parts of Fig. 5 shown tool.

The Fig. 6a shows the cross section through the vertical element of the in the FIGS. 5 and 6 illustrated tool.

The Fig. 7 is a perspective view of the in the FIGS. 5 and 6 shown tool, the lever member is inserted in the working position and a drill bit is inserted inside the vertical element and is retained by an elastic clip.

The Fig. 8 shows in perspective the in the Fig. 5, 6 , and 7 shown tool which is attached to a rod and is retained by a clip at this.

The Fig. 9 shows a perspective view of an inventive tool with guide hook and fixed protruding from the vertical element handles which has been produced for example by injection molding.

The Fig. 9a shows a cross section through the vertical element of in Fig. 9 shown tool.

The tool according to the invention consists essentially of a vertical element with C- or L-förmgem cross section 1, 11 and handles 2, 22 which, at the upper end of the vertical element 1, 11, articulated or connected to this, in working position, a T-shape with horizontally protruding handles 2, 22 to take. The vertical element 1 may have a full cross-section which may have inside and / or outside reinforcing ribs 1x which, in internal arrangement, run and dimensioned so that they can take a drill bit A which for the implementation of holes in the snow layer for use the tip C of the limiting or safety bars B is suitable. The retention of the drill tip A can be done by the fact that on the inside eventually an elastic clip 5 is provided which is dimensioned so that it also acts on the rods B, so that the scheduled position of the vertical element 1, 11 laterally on the rods B , while screwing in or unscrewing the top C, is secured. Instead of the elastic clips 5, along the two parallel longitudinal flanges of the vertical element 1, 11, elastic retaining projections or wings may be provided, without precluding that at the upper end a known guide hook H may be provided which rests against the rod and engages around it.

According to the invention, the vertical element 1 of full cross-section made of fiber reinforced plastic, for example by IMF (in mold forming) technology, using IMI (in mold impregnatin) technology, using Hybryd technology, which allows the connection of components made of plastic and metal inserts , or by pultrusion, without precluding manufacture by extrusion from plastic or light alloy. In particular, to guarantee the required mechanical load capacity in the lower region for the driver projections and in the upper region for the attachment or insertion of the handles 2, 22, suggests Invention, the attachment of metal inserts 4 with driver projections 4a and 3 Anlenkeinsätze before, which are in the plastic part, during its manufacture, anchored or subsequently inserted into seats provided and, possibly by known fasteners, such as screws 6 or rivets, are held.

In the case of a vertical element 11 of tubular cross-section, with one or more longitudinal chambers 11a, these chambers offer themselves as seats for the said inserts 4, 3 or as seats for the attachment 22s of the handles 22 in horizontal working position ( Fig. 5, 6 . 7 ), which are provided with corresponding vertical projections 2y.

The insert 3 for the pivotable 2r articulation of the handles 2 is provided with horizontal bolts 3a on which the handles 2 are mounted, these can, on the side which corresponds to the longitudinal opening on the vertical element 1, laterally projecting tongues 2x have, in a horizontal working position of the handles 2, to retain the bar B in the interior of the vertical element 1. The bolts 3a may be connected together to form a hook loop 4; this can also be formed by a separate element which engages with its two ends on the handles 2 so that, whether the horizontal working position and / or the, the vertical element 1 fitting, space-saving position is defined.

Advantageously, the vertical element 1, 11 is provided with a suspension element 4c or other element which is suitable for securing the tool directly or indirectly to the user, to his clothing or to his equipment. On the lower side on the same vertical element 11 and in the same longitudinal chambers 11 a, the inserts 4 with the driver projections 4 a and the closure insert 4 b can be attached and possibly fixed by screws 6.

In the event that the drill bit A is retained in the interior of the vertical element 1, 11, according to the invention, the shank of this drill bit A can protrude axially beyond the vertical element 1, 11, so that a Hand drill can be fixed by the drill chuck; Thus, the user is always ready to use the apparatus for the execution of the holes in the snow layer available, the device can be easily taken after use again in the vertical element 1, 11 and transported.

A particularly light and dimensionally stable structure of a preferably injection-molded tool results from the fact that the lateral longitudinal flanges of the vertical element 1 are double-walled 1a, 1i and the space between the said walls 1a, 1i is filled by lamellae 1b arranged like a truss. The simple rear wall 1c connecting the aforementioned flanges is provided on the inwardly facing surface with reinforcing ribs 1y which extend with their end portions over the rear part of the inner wall 1i of the two flanges and at least partially the position of the inside of the walls 1a, Cover 1i of the flanges 1b. These stiffening ribs 1y can be shaped and dimensioned so that the helix of an inserted drill tip is received between them. The invention thus shaped vertical element. 1 Fig. 9, 9a ) lends itself to being made of the same material with fixed side protruding handles 2f, a hitch 40a can be formed by a stiffening rib between the vertical element 1 and the guide hook H. This tool can be produced in a cost-effective manner, for example made of plastic or light metal alloy, the metallic inserts 4 with the Mitnehmervorsprüngen 4a can be secured by overmolding, by nightly insertion and Klipshalterung or by screws 6 in the corresponding seats.

Claims (7)

Tool for setting and removing bars on snow-covered slopes consisting of a vertical element (1, 11) with C- or L-shaped cross-section which can be attached laterally to the bar (B) and horizontally protruding handles (2) which at the top Part of the said vertical element are provided while on the lower part driving projections (4a) are provided which at the upper end of the, on the rod (B) mounted, tip (C) engage, characterized in that a drill tip (A), or the Rod (B), in the vertical element by at least one clip (5) is retained and that the rod (B) by lateral, by the pivotable (2r) handles (2) projecting, tongues (2x) can be retained. Tool according to claim 1, characterized in that the vertical element (1, 11) and the handles (2, 22) are made of a semi-finished fiber-reinforced plastic, which by the following injection molding process reinforcing elements, such as wings (1x), or functional elements, such as Carrier elements or clips (11c, 11b) are molded from thermoplastic resin, wherein the same molding process or by a subsequent molding process, the eventual metallic inserts (3, 4) are attached. Tool according to claim 1, characterized in that the vertical element (1, 11) is provided with a suspension element (4, 4a) which is suitable for securing the tool to the clothing or equipment of the user. Tool according to claim 1, characterized in that the handles (2) on the vertical element (1, 11) about a pin (3a) pivotally (2r) are articulated or laterally inserted in the upper region of the vertical element (1, 11) (22s ) are. Tool according to claim 1, characterized in that the lateral flanges of the vertical element (1) consist of two walls (1 a, 1 i), wherein the space between them are connected by lattice-like arranged lamellae (1 b) that the simple rear wall ( 1 c) of the same vertical element connecting said two flanges on the inwardly directed surface having reinforcing or stiffening ribs (1 y) which terminate with their end portions at the rear portion of the inner wall (1 i) of the flanges and thus at least partially the position of overlay truss-like slats (1 b) between the walls (1 a, 1 i). Tool according to claim 1 and 5, characterized in that the truss-like lamellae (1b) together with the walls (1a, 1i) of the flanges of the vertical element (1) and the stiffening ribs (1y) with their surfaces substantially perpendicular to the longitudinal axis of the vertical element (1 ) Are aligned and that the metallic inserts (4) with their driving projections (4a) by encapsulation, by subsequent insertion and clipping or fixing by screws (6) or rivets are attached. Tool according to claim 1 and 5, characterized in that the guide hook (H) which protrudes integrally from the upper region of the vertical element (1), is designed double-walled on the lateral areas such as the flanges of this element and that these two walls connected via trusses arranged similar lamellae are.

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