EP0219438B1 - Mountaineering pick with an off-centre junction between head and handle - Google Patents

Mountaineering pick with an off-centre junction between head and handle Download PDF

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Publication number
EP0219438B1
EP0219438B1 EP86420228A EP86420228A EP0219438B1 EP 0219438 B1 EP0219438 B1 EP 0219438B1 EP 86420228 A EP86420228 A EP 86420228A EP 86420228 A EP86420228 A EP 86420228A EP 0219438 B1 EP0219438 B1 EP 0219438B1
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EP
European Patent Office
Prior art keywords
head
handle
piolet
ice
offset
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EP86420228A
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German (de)
French (fr)
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EP0219438A1 (en
Inventor
Ludger Simond
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Ludger Simond SA
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Ludger Simond SA
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Priority to AT86420228T priority Critical patent/ATE47324T1/en
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    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B29/00—Apparatus for mountaineering
    • A63B29/08—Hand equipment for climbers

Definitions

  • the present invention relates to ice axes such as those used in the field of mountaineering.
  • Ice axes of known type generally comprise an elongated head, arranged in a first direction which will be designated in the following description as the transverse direction.
  • the head is connected to the end of a substantially perpendicular handle, according to an intermediate junction zone of the head.
  • the mean longitudinal axis of the handle is thus arranged in a direction substantially perpendicular to the orientation of the head, a direction which will be designated as longitudinal. So the ice ax has the general shape of a T.
  • the ice ax head comprises two parts, situated on either side of the intermediate junction zone, a first part in the form of a peak, a second part in the form of a purlin.
  • the tip is replaced by a hammer head.
  • the ice ax is a tool that has several uses, and the most classic form of the ice ax is a compromise allowing a correct result according to the different uses.
  • the ice ax is held by the handle, like a pickaxe, and the pick is planted in the ice, the end of the mache possibly abutting on the surface of the ice.
  • the useful length of the pick, or maximum length that can be planted in ice, is equal to the distance between the free end of the pick and its base connected to the end of the handle.
  • the ice ax is also held by the handle, and the tip is planted in the snow, for example to cut a step.
  • the end of the handle comes up against the surface of the snow.
  • the useful length of the tip, or maximum length that can be planted in snow is equal to the distance between the free end of the tip and its base connected to the end of the handle.
  • the ice ax serves as a cane, held by the head, the second end of the handle being able to rest on the ground; in this position, the user's fingers generally surround the tip or the peak, according to an area which is off-center with respect to the axis of the handle.
  • the junction zone between the handle and the head constitutes an obstacle tending to hinder the balanced maintenance of the ice ax.
  • Patent CH-A-398 405 GRIEDER describes an ice ax in which one of the disadvantages of conventional ice axes is avoided, by proposing a new form of ice ax head by which the behavior of the ice ax in use as a cane is improved.
  • the connection between the handle and the head is made by means of two lateral branches defining a centered ring.
  • the holding of the head can be carried out in a central zone, the fingers passing through the centered ring, in a position in which the ice ax is balanced, the center of gravity of the ice ax and the handle lying vertically below of the user's hand holding area.
  • the present invention relates in particular to a new ice ax structure, allowing on the one hand a cane hold in a balanced position, and having on the other hand a total head length which is not greater than that of conventional ice axes, at given useful length.
  • the means according to the present invention which allow the holding in a balanced position do not reduce the useful length of the tip and of the pick, and do not lead to increasing the total length of the head of the ice ax.
  • two types of ice axes are defined: in a first embodiment, more particularly suitable for use in snow, the planting of the tip is favored; in a second embodiment, more particularly suitable for use in ice, the penetration of the peak is favored.
  • the second embodiment also has the advantage of making the ice ax more symmetrical on either side of the handle. Indeed, for correct use, the useful length of the peak is generally greater than the useful length of the tip. As a result, in conventional ice axes, the peak is longer than the tip, and the handle is not centered.
  • the handle tends to be close to a centered position, balancing the passing of the purlin and the peak on either side, without modifying the useful lengths.
  • the present invention further promotes the ease of voluntary uprooting of the ice ax head planted in ice or snow, without however increasing the risk of untimely uprooting. This increases the safety of using the ice ax, which can provide reliable anchors in snow or ice.
  • the particular structure of the head provides the advantages mentioned above, without however disturbing the other qualities of the ice ax, and more particularly without increasing the vibrations of the head and the handle during use.
  • the junction zone between the handle and the ice ax head is offset transversely relative to the mean longitudinal axis of the handle, the head being connected to the end of the handle by a single arm connecting the offset junction area and the end of the handle.
  • the junction zone is offset in the direction opposite to the peak.
  • the junction zone is offset towards the peak, or direction opposite to the tip.
  • FIG. 1 represents the upper part of a roller according to the invention, in an embodiment more specially adapted for use in snow;
  • FIG. 2 represents the upper part of an ice ax according to the invention, in an embodiment more specially adapted for use in ice.
  • the ice ax conventionally comprises a head 1 of elongated shape arranged in a transverse direction 1-1, and connecting to the end 2 of a handle 3 in a zone junction 4 intermediate.
  • the head 1 has a peak 5 and a purlin 6, for example of known shapes, located on either side of the junction zone 4.
  • the junction zone 4 is offset transversely, relative to the mean longitudinal axis II-II of the handle 3, in the direction of the peak 5.
  • the head 1 is connected to the end 2 of the sleeve 3 by an oblique arm 7.
  • the arm 7 defines, between the second end of the handle 3 and the head 1, a housing 8 or notch, to which sufficient dimensions are given so that the user can insert his fingers, possibly gloved, as shown diagrammatically in the figure.
  • the housing 8 has a height H of a value of between 3 and 5 cm, a height sufficient to allow the engagement of the possibly gloved fingers of the user, and a height low enough not to disturb the other qualities of the ice ax, namely the absence of vibrations, and the possibility of planting the handle 3 itself in the snow.
  • the junction area 4 is offset from the axis II-II of the handle 3, by a value between 3 and 5 centimeters.
  • the housing 8 significantly increases the size of the area available for maintaining the ice ax in cane use, zone defined by the purlin 6 and the upper wall of the housing 8. The ergonomic qualities of the ice ax are therefore considerably improved for this use in cane.
  • the presence of the housing 8 makes it possible to increase the penetration of the purlin in the snow, by the effect of the natural inclination of the ice ax with respect to the snow surface 9 schematically shown in the figure.
  • the handle 3 is connected in a direct line to the head 1, as shown by the dotted lines 10, the handle 3 abuts against the snow represented by the dotted lines 11, and the penetration of the failure is less important than for an ice ax according to the invention.
  • the arm 7 is arranged in the plane defined by the axis 1-1 of the head and the axis II-II of the handle, and has a profile in a portion of a circle, delimited in particular by a wall interior 12 rounded for the housing 8.
  • the bottom wall 13 of the housing 8, defined by the arm 7 and the end 2 of the handle is oblique and opening, as shown in FIG. 1, facilitating the insertion of the fingers of the user in the housing 8.
  • the ice ax heads 1 are usually made of metal. Their conventional constitution provides a relatively unpleasant gripping member for the user.
  • the particular constitution of the heads 1 according to the invention makes it possible to design a gripping zone which is clearly more effective and comfortable.
  • the central zone 14 of the head 1, as well as the arm 7, can be covered with a coating 15 of an elastic and adherent material, defining an adherent and comfortable gripping zone.
  • the coating 15 can be produced by overmolding on a head 1 comprising holes such as the holes 16.
  • the holes 16, distributed in the central zone 14 and the arm 7, make it possible to lighten the ice ax, and improve the attachment of the coating 15.
  • FIG. 2 shows a second embodiment of an ice ax according to the invention, an embodiment more particularly suitable for use in ice.
  • the ice ax then has substantially the same constitution as in the embodiment of FIG. 1, but the junction zone 4 is offset in the direction opposite to that of the peak 1 relative to the mean axis II-II of the handle 3.
  • the peak penetrates deeper into the ice, the surface of which is represented by the line 17.
  • the presence of the housing 8 makes it possible to increase the penetration of the peak in the ice, by l effect of the natural inclination of the ice ax with respect to the surface of the ice 17 schematically represented in the figure.
  • the handle 3 is connected in a direct line to the head 1, as shown by the dotted lines 18, the handle 3 abuts against the glass 19, and the penetration of the peak is less important than for an ice ax according to the invention.
  • the peak is more easily released from the ice by rotation of the handle 3 around the end 2 taking support against the surface 17 of the glass.
  • the geometric characteristics of the arm 7 can be identical to those provided in the embodiment of Figure 1, and the central area and the arm can be covered with a coating of elastic material.
  • the user will tend to hold the ice ax, when using a cane, by the side of the head located towards the peak 5, the housing 8 then being open in the direction of the peak .
  • the invention can also be applied to ice ax head shapes different from those of the two embodiments shown in the figures.
  • the offset of the junction zone 4 can also apply to an ice ax head in which the tip 6 is replaced by a hammer head.

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  • Health & Medical Sciences (AREA)
  • Pulmonology (AREA)
  • General Health & Medical Sciences (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Steering Devices For Bicycles And Motorcycles (AREA)
  • Cleaning Of Streets, Tracks, Or Beaches (AREA)
  • Stringed Musical Instruments (AREA)
  • Domestic Plumbing Installations (AREA)
  • Adornments (AREA)
  • Walking Sticks, Umbrellas, And Fans (AREA)
  • Dowels (AREA)
  • Slide Fasteners, Snap Fasteners, And Hook Fasteners (AREA)
  • Details Of Rigid Or Semi-Rigid Containers (AREA)

Abstract

1. Piolet for mountaineering, comprising a substantially transverse head (1) connected to the end of a longitudinal handle (3) in an intermediate junction zone (4), characterized in that the junction zone (4) is offset transversely with respect to the mean longitudinal axis (II-II) of the handle (3), the head being joined to the end (2) of the handle by a single arm (7) connecting the offset junction zone (4) to the end (2) of the handle (3).

Description

La présente invention concerne les piolets tels que ceux utilisés dans le domaine de l'alpinisme.The present invention relates to ice axes such as those used in the field of mountaineering.

Les piolets de type connu comprennent généralement une tête de forme allongée, disposée selon une première direction que l'on désignera dans la suite de la description comme la direction transversale.Ice axes of known type generally comprise an elongated head, arranged in a first direction which will be designated in the following description as the transverse direction.

La tête se raccorde à l'extrémité d'un manche sensiblement perpendiculaire, selon une zone de jonction intermédiaire de la tête. L'axe longitudinal moyen du manche est ainsi disposé selon une direction sensiblement perpendiculaire à l'orientation de la tête, direction que l'on désignera comme longitudinale. Ainsi le piolet a la forme générale d'un T.The head is connected to the end of a substantially perpendicular handle, according to an intermediate junction zone of the head. The mean longitudinal axis of the handle is thus arranged in a direction substantially perpendicular to the orientation of the head, a direction which will be designated as longitudinal. So the ice ax has the general shape of a T.

Dans sa forme la plus classique, la tête de piolet comprend deux parties, situées de part et d'autre de la zone de jonction intermédiaire, une première partie en forme de pic, une seconde partie en forme de panne. Dans d'autres modes de réalisation, la panne est remplacée par une tête de marteau.In its most classic form, the ice ax head comprises two parts, situated on either side of the intermediate junction zone, a first part in the form of a peak, a second part in the form of a purlin. In other embodiments, the tip is replaced by a hammer head.

Le piolet est un outil qui a plusieurs usages, et la forme la plus classique du piolet est un compromis permettant un résultat correct selon les différentes utilisations.The ice ax is a tool that has several uses, and the most classic form of the ice ax is a compromise allowing a correct result according to the different uses.

Selon un premier type d'utilisation, le piolet est tenu par le manche, comme une pioche, et le pic est planté dans la glace, l'extrémité du mache venant éventuellement buter sur la surface de la glace. La longueur utile du pic, ou longueur maximale que l'on peut planter dans la glace, est égale à la distance entre l'extrémité libre du pic et sa base raccordée à l'extrémité du manche.According to a first type of use, the ice ax is held by the handle, like a pickaxe, and the pick is planted in the ice, the end of the mache possibly abutting on the surface of the ice. The useful length of the pick, or maximum length that can be planted in ice, is equal to the distance between the free end of the pick and its base connected to the end of the handle.

Selon un second mode d'utilisation, le piolet est également tenu par le manche, et la panne est plantée dans la neige, par exemple pour tailler une marche. L'extrémité du manche vient buter à la surface de la neige. La longueur utile de la panne, ou longueur maximale que l'on peut planter dans la neige, est égale à la distance entre l'extrémité libre de la panne et sa base raccordée à l'extrémité du manche.According to a second mode of use, the ice ax is also held by the handle, and the tip is planted in the snow, for example to cut a step. The end of the handle comes up against the surface of the snow. The useful length of the tip, or maximum length that can be planted in snow, is equal to the distance between the free end of the tip and its base connected to the end of the handle.

Selon un troisième mode d'utilisation, le piolet sert de canne, tenu par la tête, la seconde extrémité du manche pouvant reposer à terre; dans cette position, les doigts de l'utilisateur entourent généralement la panne ou le pic, selon une zone décentrée par rapport à l'axe du manche. La zone de jonction entre le manche et la tête constitue un obstacle tendant à gêner le maintien équilibré du piolet.According to a third mode of use, the ice ax serves as a cane, held by the head, the second end of the handle being able to rest on the ground; in this position, the user's fingers generally surround the tip or the peak, according to an area which is off-center with respect to the axis of the handle. The junction zone between the handle and the head constitutes an obstacle tending to hinder the balanced maintenance of the ice ax.

Le brevet CH-A-398 405 GRIEDER décrit un piolet dans lequel on évite l'un des inconvénients des piolets classiques, en proposant une nouvelle forme de tête de piolet par laquelle la tenue du piolet en utilisation comme canne est améliorée. Pour cela, le raccordement entre le manche et la tête s'effectue au moyen de deux branches latérales définissant un anneau centré. La tenue de la tête peut s'effectuer selon une zone centrale, les doigts passant dans l'anneau centré, dans une position dans laquelle le piolet se trouve équilibré, le centre de gravité du piolet et le manche se situant à la verticale au dessous de la zone de tenue par la main de l'utilisateur.Patent CH-A-398 405 GRIEDER describes an ice ax in which one of the disadvantages of conventional ice axes is avoided, by proposing a new form of ice ax head by which the behavior of the ice ax in use as a cane is improved. For this, the connection between the handle and the head is made by means of two lateral branches defining a centered ring. The holding of the head can be carried out in a central zone, the fingers passing through the centered ring, in a position in which the ice ax is balanced, the center of gravity of the ice ax and the handle lying vertically below of the user's hand holding area.

Cette disposition à anneau centré présente toutefois des inconvénients graves lors de l'utilisation du piolet en ancrage, pic planté dans la glace, ou en taille de marche, panne plantée dans la neige. Dans l'une et l'autre de ces positions, en effet, la présence des bras latéraux réduit sensiblement la longueur utile du pic et de la panne, les bras venant buter contre la surface de glace ou de neige. Ainsi, pour une longueur totale de tête donnée, les longueurs utiles sont réduites chacune du rayon de l'anneau. Ou encore, pour des longueurs utiles données, la longueur totale de tête est augmentée du diamètre de l'anneau. Cela conduit à augmenter aussi le poids du piolet. Il en résulte qu'une telle disposition n'est pas utilisée en pratique.This arrangement with a centered ring, however, has serious drawbacks when using the ice ax as an anchor, peak planted in the ice, or in step size, breakdown planted in the snow. In both of these positions, in fact, the presence of the lateral arms appreciably reduces the useful length of the peak and of the purlin, the arms abutting against the surface of ice or snow. Thus, for a given total head length, the useful lengths are each reduced by the radius of the ring. Or, for given useful lengths, the total head length is increased by the diameter of the ring. This also increases the weight of the ice ax. It follows that such a provision is not used in practice.

La présente invention a notamment pour objet une nouvelle structure de piolet, permettant d'une part une tenue en canne dans une position équilibrée, et présentant d'autre part une longueur totale de tête qui n'est pas supérieure à celle des piolets classiques, à longueur utile donnée. En d'autres termes, les moyens selon la présente invention qui permettent la tenue en position équilibrée ne réduisent pas la longueur utile de la panne et du pic, et en conduisent pas à augmenter la longueur totale de la tête du piolet.The present invention relates in particular to a new ice ax structure, allowing on the one hand a cane hold in a balanced position, and having on the other hand a total head length which is not greater than that of conventional ice axes, at given useful length. In other words, the means according to the present invention which allow the holding in a balanced position do not reduce the useful length of the tip and of the pick, and do not lead to increasing the total length of the head of the ice ax.

Selon l'invention, on définit deux types de piolets: dans un premier mode de réalisation, plus particulièrement adapté à une utilisation dans la neige, on favorise le planté de la panne; dans un second mode de réalisation, plus particulièrement adapté à une utilisation dans la glace, on favorise la pénétration du pic.According to the invention, two types of ice axes are defined: in a first embodiment, more particularly suitable for use in snow, the planting of the tip is favored; in a second embodiment, more particularly suitable for use in ice, the penetration of the peak is favored.

Le second mode de réalisation présente en outre l'avantage de rendre le piolet plus symmétrique de part et d'autre du manche. En effet, pour une utilisation correcte, la longueur utile du pic est généralement plus grande que la longueur utile de la panne. Il en résulte que, dans les piolets classiques, le pic est plus long que la panne, et le manche n'est pas centré.The second embodiment also has the advantage of making the ice ax more symmetrical on either side of the handle. Indeed, for correct use, the useful length of the peak is generally greater than the useful length of the tip. As a result, in conventional ice axes, the peak is longer than the tip, and the handle is not centered.

Dans le second mode de réalisation selon l'invention, le manche tend à être proche d'une position centrée, equilibrant le dépassement de la panne et du pic de part et d'autre, sans modifier les longueurs utiles.In the second embodiment according to the invention, the handle tends to be close to a centered position, balancing the passing of the purlin and the peak on either side, without modifying the useful lengths.

Dans l'un et l'autre des types de piolets, la présente invention favorise en outre la facilité d'arrachage volontaire de la tête de piolet plantée dans la glace ou la neige, sans toutefois augmenter les risques d'arrachage intempestif. Ainsi, on augmente la sécurité d'utilisation du piolet, qui peut réaliser des ancrages fiables dans la neige ou la glace.In both types of ice axes, the present invention further promotes the ease of voluntary uprooting of the ice ax head planted in ice or snow, without however increasing the risk of untimely uprooting. This increases the safety of using the ice ax, which can provide reliable anchors in snow or ice.

Selon l'invention, la structure particulière de la tête procure les avantages mentionnés ci-dessus, sans toutefois perturber les autres qualitéés du piolet, et plus particulièrement sans augmenter les vibrations de la tête et du manche lors de l'utilisation.According to the invention, the particular structure of the head provides the advantages mentioned above, without however disturbing the other qualities of the ice ax, and more particularly without increasing the vibrations of the head and the handle during use.

Pour atteindre ces objets ainsi que d'autres, la zone de jonction entre le manche et la tête de piolet est déportée transversalement par rapport à l'axe longitudinal moyen du manche, la tête se raccordant à l'extrémité du manche par un unique bras reliant la zone de jonction déportée et l'extrémité du manche.To reach these and other objects, the junction zone between the handle and the ice ax head is offset transversely relative to the mean longitudinal axis of the handle, the head being connected to the end of the handle by a single arm connecting the offset junction area and the end of the handle.

Pour réaliser un piolet plus particulièrement adapté à un usage en glace, la zone de jonction est déportée dans la direction opposée au pic.To make an ice ax more particularly suitable for use in ice, the junction zone is offset in the direction opposite to the peak.

Pour réaliser un piolet plus spécialement adapté à une utilisation en neige, la zone de jonction est déportée en direction du pic, ou direction opposée à la panne.To make an ice ax more specially adapted for use in snow, the junction zone is offset towards the peak, or direction opposite to the tip.

D'autres objets, caractéristiques et avantages de la présente invention ressortiront de la description suivante de modes de réalisation particuliers, faite en relation avec les figures jointes, parmi lesquelles:Other objects, characteristics and advantages of the present invention will emerge from the following description of particular embodiments, given in relation to the attached figures, among which:

la figure 1 représente la partie supérieure d'un pio- letselon l'invention, dans un mode de réalisation plus spécialement adapté à une utilisation en neige; etFIG. 1 represents the upper part of a roller according to the invention, in an embodiment more specially adapted for use in snow; and

la figure 2 représente la partie supérieure d'un piolet selon l'invention, dans un mode de réalisation plus spécialement adapté à une utilisation en glace.FIG. 2 represents the upper part of an ice ax according to the invention, in an embodiment more specially adapted for use in ice.

Dans le mode de réalisation représenté sur la figure 1, le piolet comprend, de façon classique, une tête 1 de forme allongée disposée selon une direction transversale 1-1, et se raccordant à l'extrémité 2 d'un manche 3 selon une zone de jonction 4 intermédiaire. La tête 1 comporte un pic 5 et une panne 6, par exemple de formes connues, situés de part et d'autre de la zone de jonction 4.In the embodiment shown in Figure 1, the ice ax conventionally comprises a head 1 of elongated shape arranged in a transverse direction 1-1, and connecting to the end 2 of a handle 3 in a zone junction 4 intermediate. The head 1 has a peak 5 and a purlin 6, for example of known shapes, located on either side of the junction zone 4.

Dans le mode de réalisation représenté, la zone de jonction 4 est déportée transversalement, par rapport à l'axe longitudinal moyen II-II du manche 3, en direction du pic 5. Ainsi, la tête 1 se raccorde à l'extrémité 2 du manche 3 par un bras 7 oblique.In the embodiment shown, the junction zone 4 is offset transversely, relative to the mean longitudinal axis II-II of the handle 3, in the direction of the peak 5. Thus, the head 1 is connected to the end 2 of the sleeve 3 by an oblique arm 7.

Le bras 7 définit, entre la seconde extrémité du manche 3 et la tête 1, un logement 8 ou encoche, auquel on donne des dimensions suffisantes pour que l'utilisateur puisse insérer ses doigts, éventuellement gantés, comme le représente schématiquement la figure. Ainsi, le logement 8 a une hauteur H d'une valeur comprise entre 3 et 5 cm, hauteur suffisante pour permettre l'engagement des doigts éventuellement gantés de l'utilisateur, et hauteur suffisamment faible pour ne pas perturber les autres qualités du piolet, à savoir l'absence de vibrations, et la possibilité de planté du manche 3 lui-même dans la neige.The arm 7 defines, between the second end of the handle 3 and the head 1, a housing 8 or notch, to which sufficient dimensions are given so that the user can insert his fingers, possibly gloved, as shown diagrammatically in the figure. Thus, the housing 8 has a height H of a value of between 3 and 5 cm, a height sufficient to allow the engagement of the possibly gloved fingers of the user, and a height low enough not to disturb the other qualities of the ice ax, namely the absence of vibrations, and the possibility of planting the handle 3 itself in the snow.

Pour les mêmes raisons, la zone de jonction 4 est décalée par rapport à l'axe II-II du manche 3, d'une valeur comprise entre 3 et 5 centimètres. Ainsi, lorsque l'utilisateur dispose sa main, comme le représente la figure 1, pour tenir le piolet par la tête 1, ses doigts étant insérés sous la tête 1 dans le logement 8, le piolet se trouve suspendu avec son manche en position sensiblement verticale, son centre de gravité étant situé au-dessous de la zone de support soutenue par les doigts de la main.For the same reasons, the junction area 4 is offset from the axis II-II of the handle 3, by a value between 3 and 5 centimeters. Thus, when the user has his hand, as shown in Figure 1, to hold the ice ax by the head 1, his fingers being inserted under the head 1 in the housing 8, the ice ax is suspended with its handle in position substantially vertical, its center of gravity being located below the support zone supported by the fingers of the hand.

Le logement 8 augmente sensiblement la taille de la zone disponible pour le maintien du piolet en utilisation en canne, zone définie par la panne 6 et la paroi supérieure du logement 8. Les qualités ergonomiques du piolet sont donc considérablement améliorées pour cette utilisation en canne.The housing 8 significantly increases the size of the area available for maintaining the ice ax in cane use, zone defined by the purlin 6 and the upper wall of the housing 8. The ergonomic qualities of the ice ax are therefore considerably improved for this use in cane.

D'autre part, lors de l'utilisation de la panne 6 dans la neige, la présence du logement 8 permet d'augmenter la pénétration de la panne dans la neige, par l'effet de l'inclinaison naturelle du piolet par rapport à la surface de la neige 9 schématiquement représentée sur la figure. Ainsi, avec un piolet de forme classique, dans lequel le manche 3 se raccorde en ligne directe sur la tête 1, comme le représentent les traits pointillés 10, le manche 3 bute contre la neige représentée par les pointillés 11, et la pénétration de la panne est moins importante que pour un piolet selon l'invention.On the other hand, when using the purlin 6 in the snow, the presence of the housing 8 makes it possible to increase the penetration of the purlin in the snow, by the effect of the natural inclination of the ice ax with respect to the snow surface 9 schematically shown in the figure. Thus, with an ice ax of conventional shape, in which the handle 3 is connected in a direct line to the head 1, as shown by the dotted lines 10, the handle 3 abuts against the snow represented by the dotted lines 11, and the penetration of the failure is less important than for an ice ax according to the invention.

En outre, lors de l'utilisation d'un piolet selon l'invention, partant d'une position plantée représentée sur la figure, on dégage plus facilement la panne hors de la neige par rotation du manche 3 autour de l'extrémité 2 prenant appui contre la surface 9 de la neige.In addition, when using an ice ax according to the invention, starting from a planted position shown in the figure, it is easier to clear the tip out of the snow by rotation of the handle 3 around the end 2 taking support against the surface 9 of the snow.

Dans le mode de réalisation représenté, le bras 7 est disposé dans le plan défini par l'axe 1-1 de la tête et l'axe II-II du manche, et présente un profil en portion de cercle, délimité notamment par une paroi intérieure 12 arrondie pour le logement 8. De préférence, la paroi inférieure 13 du logement 8, définie par le bras 7 et l'extrémité 2 du manche, est oblique et ouvrante, comme le représente la figure 1, facilitant l'insertion des doigts de l'utilisateur dans le logement 8.In the embodiment shown, the arm 7 is arranged in the plane defined by the axis 1-1 of the head and the axis II-II of the handle, and has a profile in a portion of a circle, delimited in particular by a wall interior 12 rounded for the housing 8. Preferably, the bottom wall 13 of the housing 8, defined by the arm 7 and the end 2 of the handle, is oblique and opening, as shown in FIG. 1, facilitating the insertion of the fingers of the user in the housing 8.

Les têtes 1 de piolet sont habituellement réalisées en métal. Leur constitution classique réalise un organe de préhension relativement désagréable pour l'utilisateur. La constitution particulière des têtes 1 selon l'invention permet de concevoir une zone de préhension nettement plus efficace et confortable. Pour cela, la zone centrale 14 de la tête 1, ainsi que le bras 7, peuvent être recouverts d'un revêtement 15 en une matière élastique et adhérente, définissant une zone de préhension adhérente et confortable. Le revêtement 15 peut être réalisé par surmoulage sur une tête 1 comportant des trous tels que les trous 16. Les trous 16, répartis dans la zone centrale 14 et le bras 7, permettent d'alléger le piolet, et améliorent l'accrochage du revêtement 15.The ice ax heads 1 are usually made of metal. Their conventional constitution provides a relatively unpleasant gripping member for the user. The particular constitution of the heads 1 according to the invention makes it possible to design a gripping zone which is clearly more effective and comfortable. For this, the central zone 14 of the head 1, as well as the arm 7, can be covered with a coating 15 of an elastic and adherent material, defining an adherent and comfortable gripping zone. The coating 15 can be produced by overmolding on a head 1 comprising holes such as the holes 16. The holes 16, distributed in the central zone 14 and the arm 7, make it possible to lighten the ice ax, and improve the attachment of the coating 15.

On a représenté sur la figure 2 un second mode de réalisation d'un piolet selon l'invention, mode de réalisation plus spécialement adapté à une utilisation en glace. Le piolet a alors sensiblement la même constitution que dans le mode de réalisation de la figure 1, mais la zone de jonction 4 est décalée dans la direction opposée à celle du pic 1 par rapport à l'axe moyen II-II du manche 3.FIG. 2 shows a second embodiment of an ice ax according to the invention, an embodiment more particularly suitable for use in ice. The ice ax then has substantially the same constitution as in the embodiment of FIG. 1, but the junction zone 4 is offset in the direction opposite to that of the peak 1 relative to the mean axis II-II of the handle 3.

Lors de l'utilisation, on comprend que le pic pénètre plus profondément dans la glace, dont la surface est représentée par la ligne 17. En effet, la présence du logement 8 permet d'augmenter la pénétration du pic dans la glace, par l'effet de l'inclinaison naturelle du piolet par rapport à la surface de la glace 17 schématiquement représentée sur la figure. Ainsi, avec un piolet de forme classique, dans lequel le manche 3 se raccorde en ligne directe sur la tête 1, comme le représentent les traits pointillés 18, le manche 3 bute contre la glace 19, et la pénétration du pic est moins importante que pour un piolet selon l'invention.During use, it is understood that the peak penetrates deeper into the ice, the surface of which is represented by the line 17. In fact, the presence of the housing 8 makes it possible to increase the penetration of the peak in the ice, by l effect of the natural inclination of the ice ax with respect to the surface of the ice 17 schematically represented in the figure. Thus, with an ice ax of conventional shape, in which the handle 3 is connected in a direct line to the head 1, as shown by the dotted lines 18, the handle 3 abuts against the glass 19, and the penetration of the peak is less important than for an ice ax according to the invention.

En outre, lors de l'utilisation d'un piolet selon l'invention, partant d'une position plantée représentée sur la figure, on dégage plus facilement le pic hors de la glace par rotation du manche 3 autour de l'extrémité 2 prenant appui contre la surface 17 de la glace.In addition, when using an ice ax according to the invention, starting from a planted position shown in the figure, the peak is more easily released from the ice by rotation of the handle 3 around the end 2 taking support against the surface 17 of the glass.

Dans ce mode de réalisation, les caractéristiques géométriques du bras 7 peuvent être identiques à celles prévues dans le mode de réalisation de la figure 1, et la zone centrale ainsi que le bras peuvent être recouverts d'un revêtement en matière élastique.In this embodiment, the geometric characteristics of the arm 7 can be identical to those provided in the embodiment of Figure 1, and the central area and the arm can be covered with a coating of elastic material.

Dans ce mode de réalisation de la figure 2, l'utilisateur aura tendance à tenir le piolet, lors d'une utilisation en canne, par le côté de la tête situé vers le pic 5, le logement 8 étant alors ouvert en direction du pic.In this embodiment of Figure 2, the user will tend to hold the ice ax, when using a cane, by the side of the head located towards the peak 5, the housing 8 then being open in the direction of the peak .

L'invention peut s'appliquer également à des formes de têtes de piolet différentes de celles des deux modes de réalisation représentés sur les figures. Par exemple, le déport de la zone de jonction 4 peut s'appliquer aussi à une tête de piolet dans laquelle la panne 6 est remplacée par une tête de marteau.The invention can also be applied to ice ax head shapes different from those of the two embodiments shown in the figures. For example, the offset of the junction zone 4 can also apply to an ice ax head in which the tip 6 is replaced by a hammer head.

Claims (10)

1. Piolet for mountaineering, comprising a substantially transverse head (1) connected to the end of a longitudinal handle (3) in an intermediate junc- tiom zone (4), characterized in that the junction zone (4) is offset transversely with respect to the mean longitudinal axis (11-11) of the handle (3), the head being joined to the end (2) of the handle by a single arm (7) connecting the offset junction zone (4) to the end (2) of the handle (3).
2. Piolet according to claim 1, wherein the head (1) comprises a pick (5), characterized in that the junction zone (4) is offset in the direction of the pick (5).
3. Piolet according to claim 1, wherein the head (1) comprises a pick (5), characterized in that the junction zone (4) is offset in the direction opposite the pick (5).
4. Piolet according to claim 1, wherein the head (1) comprises a peen (6), characterized in that the junction zone (4) is offset in the direction opposite the peen (6).
5. Piolet according to any one of claims 2 to 4, characterized in thatthe arm (7) defines a housing (8) of sufficient height (H) to allow the fingers of the user to pass between the piolet head (1) and the end (2) of the handle (3).
6. Piolet according to claim 5, characterized in that the junction zone (4) is offset by a distance between three and five centimetres, so that the piolet is suspended with its handle in a substantially vertical position when the fingers are inserted in the housing (8).
7. Piolet according to one of claims 5 or 6, characterized in that the arm (7) has a slow profile in the form of a circle portion defining an inner rounded wall (12) of the housing (8).
8. Piolet according to claim 7, characterized in that the lower wall (13) of the housing (8) defined by the arm (7) and the end (2) of the handle (3), is oblique and opening.
9. Piolet according to one of claims 7 or 8, wherein the head (1) is made from metal, characterized in that the central zone (14) of the head is covered with a resilient and adherent material coating (15) defining a gripping zone.
10. Piolet according to claim 9, characterized in that the coating (15) is made by moulding over a head (1) comprising holes (16) for lightening the piolet and improving the adherence of the coating.
EP86420228A 1985-09-13 1986-09-11 Mountaineering pick with an off-centre junction between head and handle Expired EP0219438B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86420228T ATE47324T1 (en) 1985-09-13 1986-09-11 ICE AX FOR MOUNTAIN SPORTS WITH AN OFFSET CONNECTION BETWEEN HANDLE AND HEAD PIECE.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8514089A FR2587224B1 (en) 1985-09-13 1985-09-13 MOUNTAINEERING PIOLET COMPRISING A HEAD WITH A DEPORTED JUNCTION AREA
FR8514089 1985-09-13

Publications (2)

Publication Number Publication Date
EP0219438A1 EP0219438A1 (en) 1987-04-22
EP0219438B1 true EP0219438B1 (en) 1989-10-18

Family

ID=9323162

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86420228A Expired EP0219438B1 (en) 1985-09-13 1986-09-11 Mountaineering pick with an off-centre junction between head and handle

Country Status (5)

Country Link
EP (1) EP0219438B1 (en)
AT (1) ATE47324T1 (en)
DE (1) DE3666355D1 (en)
ES (1) ES2002141A6 (en)
FR (1) FR2587224B1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH686930A5 (en) * 1993-06-17 1996-08-15 Alois Marty Pimples.
CN112973044A (en) * 2021-01-28 2021-06-18 南京莫菲亚纺织品有限公司 Multi-purpose automatic mountain-climbing pickaxe with safety buckle

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH398405A (en) * 1962-12-07 1966-03-15 Grieder Hans ice pick
US4108026A (en) * 1977-05-31 1978-08-22 Anderson Gordon K Tool for removing rock climbing captive devices
IT8123538V0 (en) * 1981-11-16 1981-11-16 Fiamma Spa STICK, ESPECIALLY FOR DEABLED PEOPLE.

Also Published As

Publication number Publication date
EP0219438A1 (en) 1987-04-22
FR2587224B1 (en) 1988-07-29
ATE47324T1 (en) 1989-11-15
DE3666355D1 (en) 1989-11-23
ES2002141A6 (en) 1988-07-16
FR2587224A1 (en) 1987-03-20

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