EP0232210A1 - Crampon brace with a device to regulate length by means of rotary locking - Google Patents

Crampon brace with a device to regulate length by means of rotary locking Download PDF

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Publication number
EP0232210A1
EP0232210A1 EP87420019A EP87420019A EP0232210A1 EP 0232210 A1 EP0232210 A1 EP 0232210A1 EP 87420019 A EP87420019 A EP 87420019A EP 87420019 A EP87420019 A EP 87420019A EP 0232210 A1 EP0232210 A1 EP 0232210A1
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EP
European Patent Office
Prior art keywords
bar
shaft
tunnel
male
armature
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP87420019A
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German (de)
French (fr)
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EP0232210B1 (en
Inventor
Ludger Simond
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Ludger Simond SA
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Ludger Simond SA
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Publication date
Application filed by Ludger Simond SA filed Critical Ludger Simond SA
Priority to AT87420019T priority Critical patent/ATE44438T1/en
Publication of EP0232210A1 publication Critical patent/EP0232210A1/en
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Publication of EP0232210B1 publication Critical patent/EP0232210B1/en
Expired legal-status Critical Current

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    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43C—FASTENINGS OR ATTACHMENTS OF FOOTWEAR; LACES IN GENERAL
    • A43C15/00—Non-skid devices or attachments
    • A43C15/06—Ice-gripping devices or attachments, e.g. ice-spurs, ice-cleats, ice-creepers, crampons; Climbing devices or attachments, e.g. mountain climbing irons
    • A43C15/068—Climbing devices or attachments, e.g. glacier crampons, mountain climbing irons

Definitions

  • the present invention relates to an ice crampon frame provided with a quick length adjustment device.
  • Traditional ice spikes have a metal frame connecting and carrying, on the underside, sharp points intended to penetrate ice or snow.
  • the frame comprises, on the upper face, means for its adaptation under the sole of a shoe.
  • the studs have adjustment means allowing their adaptation to shoes of different sizes.
  • the conventional solution consists in using a frame comprising at least a first and a second part, the spacing of one with respect to the other is adjustable by means of at least one connecting bar secured to the first part and mounted at sliding relative to the second frame part; the connecting bar is provided with holes in which a bolt engages through a corresponding hole in the second frame part, the bolt being fixed by a nut.
  • Ice crampons are very reliable devices, because they are used in dangerous conditions in high mountains. For this it is necessary to tighten the bolts and nuts sufficiently to prevent loosening during use. Consequently, loosening, for a new adjustment of the length of the crampon, can only be achieved using special tools such as a wrench or screwdriver.
  • the length adjustment requires the complete removal of the bolt, then the adaptation of the two frame parts under the shoe sole; when the length is correct, the user must remove the crampon from the shoe, taking care not to move the two parts of the frame relative to each other, and he must insert the bolt in the holes of the armature and the connecting bar and tighten the nut.
  • the object of the present invention is in particular to avoid the drawbacks of known adjustment means by proposing a new adjustment structure whose implementation is much faster. than bolt and nut devices.
  • This new structure is adjustable without requiring the use of special tools, while nevertheless being compatible with the reliability requirements of ice spikes: it is in particular advisable to avoid untimely maneuvers, and to prevent involuntary adjustment during the use of the crampon.
  • the adjustment device is light, and does not present discomfort either on the upper face or on the lower face of the frame.
  • the adjustment device is adaptable to existing reinforcements using minor modifications of these reinforcements; it is thus possible to produce industrially a series of crampons, some of which are provided with the device of the invention and others of which are adjustable using conventional means.
  • the adjustment device is particularly robust and convenient to use.
  • the length of the connecting bar is adjusted by rotation of a part of the reinforcement relative to the other to bring the points opposite one another others ; thus the bar protrudes from the top during rotation, and leaves the lower part of the crampons free, allowing for example the adaptation of non-stick devices.
  • the crampon once folded is very compact, and the tips are protected.
  • the frame comprises at least a first and a second part connected by at least one connecting bar; the spacing of the two frame parts relative to each other is adjustable; the bar is slidably mounted in a tunnel of at least one of the first and second frame parts, and is biased by a locking means in translation ensuring its locking in the tunnel; the tunnel is delimited for this by a cross member and a shaft arranged transversely on a frame part and offset by a distance greater than the thickness of the bar; the shaft and the cross-member are rotatably mounted with respect to each other about an axis of transverse rotation offset from the mean axis of the shaft; the tunnel and the bar have male-female cross-engagement members; the relative rotation of the cross-member shaft ensures, in a first relative angular position, the approximation and engagement of the male-female organs for the longitudinal locking of the bar, and, in a second angular position, the release of the organs male-female and the release of the bar. Locking
  • the shaft is fixed and integral with the frame, while the cross member is rotatably mounted around the shaft.
  • the cross member is rotated around the shaft by the connecting bar which itself remains in abutment on the shaft.
  • the cross member is secured to the frame, while the shaft is rotatably mounted on the frame and comprises a gripping means for its actuation by the user.
  • the male-female engagement members are arranged on the one hand on the bar and on the other hand in the tunnel; in the tunnel, these members are arranged either on the cross member or on the shaft.
  • the embodiments in which the engagement member is integral with the cross member are preferable in the cases where a longitudinal support is desired without play.
  • the spike comprises a frame 1 whose upper face 2 is intended to be pressed under the sole of a shoe, and whose lower face 3 comprises sharp points 4 to penetrate the ice.
  • the frame 1 comprises a first part 5 and a second part 6, the spacing of one with respect to the other is adjustable by means of a connecting bar 7.
  • FIGS 1 and 8 there is shown a frame in which the bar 7 is connected to the first frame part 5 by sliding in a tunnel 8 of the frame, and is connected to the second frame part 6 by sliding in a second tunnel 9 of the frame.
  • the first tunnel 8 is provided with locking means making it possible to block the bar 7 in translation relative to the first frame part 5, the locking being able to be effected in various positions of the bar.
  • the tunnel 9 allows the free sliding of the bar 7, the complete exit of the bar 7 being prohibited by a key 10 abutting against the walls of the tunnel 9.
  • the tunnel 8 is delimited by an upper cross member 11 journalling around a transverse shaft 12 mounted fixed on the frame.
  • the shaft 12 is of generally cylindrical shape with circular section, and has a central flat 13 of length greater than the width of the bar 7.
  • the bar 7 passes between the shaft 12 and the cross member 11, above the tree.
  • the cross member 11 is a jumper formed by a central portion 14 substantially parallel to the shaft and offset to form the tunnel.
  • the central portion is connected to two end uprights 15 and 16 provided with holes for the passage of the shaft, the uprights 15 and 16 being spaced from each other by a distance greater than the width of the bar .
  • the cross member 11 is blocked in translation on the shaft 12 by means of sockets 17 and 18 covering the lateral portions of the shaft and bearing on the one hand against the uprights 15 and 16 and on the other hand against the frame.
  • the cross member 11 comprises a lug 19, protruding from the lower face 20 of its central portion 14.
  • the lug 19 has a section corresponding to the dimension of holes 21 distributed over the length of the bar 7.
  • the height of the uprights 15 and 16 and the diameter of the shaft 12 are chosen so that the distance between the underside 20 of the cross member 11 and the cylindrical peripheral surface of the shaft 12 is between the thickness of the bar 7 and between this same thickness of the bar increased by the height of the lug 19.
  • the flat 13 has a dimension such that, in the unlocked position shown in FIG. 6, the distance between the lower face 20 of the cross member 11 and the flat is greater than the sum of the thickness of the bar and the height of the lug 19.
  • the flat 13 is oriented on the external face of the shaft 12, as shown in the figures.
  • the tunnel 8 in the locked position, shown in FIGS. 2 to 5, the tunnel 8 is delimited by the lower face 20 of the cross-member 11 and by the external cylindrical surface of the shaft 12.
  • the thickness of the tunnel is very slightly greater than the thickness of the bar.
  • the lug 19 is necessarily engaged in a corresponding hole 21 in the bar, and prohibits the translation of the bar in the tunnel. This translation is authorized when the second frame part 6 is pivoted downwards, bringing the points of the second frame part towards the points of the first frame part 5, in order to bring the bar 7 into position vertical shown in Figure 6.
  • the bar imparts a rotational movement to the cross member 11, which then faces the flat 13.
  • the bar can then be released manually from the lug 19 by translation towards the shaft 12 as the represents the arrow 22, and it can then slide freely in the tunnel 8 for a length adjustment. Once the length has been chosen, the bar 7 is pushed back towards the lug 19 in order to engage the lug in one of the holes 21 in the bar, then a rotation of the bar is printed to bring the two armature portions in extension one from the other.
  • the section of the shaft 12 may be different from that shown in the figures.
  • the axis of rotation 1-1 of the cross member, shown in FIG. 2 is slightly offset from the mean axis II-II of the central portion of the shaft.
  • a tunnel 8 formed of a lower shaft and an upper cross member. It is possible to reverse the position of the two elements, and to have the shaft in the upper position and the crosspiece in the lower position. - According to another variant, the portion with a small radius or flat 13 can be positioned on the opposite face of the shaft. In order to unlock the bar, it suffices to turn the bar in the other direction than that shown in FIG. 6.
  • the locking of the bar 7 is ensured by a lug 19 penetrating into holes 21.
  • the locking can be ensured by any form of engagement members of the male-female type.
  • two series of parallel holes can be provided on the bar in which two lugs of the crosspiece engage; one can also provide a series of pins distributed over the length of the bar and penetrating a hole in the crosspiece.
  • the male engagement member is disposed on the shaft 12: the shaft 12 has a protrusion 23 on a portion of its periphery, protuberance intended to penetrate into a corresponding hole 21 of the bar 7.
  • the unlocking is ensured by rotating the shaft 12 relative to the frame, the cross member 11 remaining fixed.
  • the shaft 12 is provided with gripping means for its actuation by hand by the user.
  • the bar is held in the tunnel 8 with locking, and in the tunnel 9 in simple sliding stopped by a key 10. It is also possible, as a variant, to provide a second tunnel 9 also provided with locking means.
  • the particular locking device according to the invention can be adapted to reinforcements comprising more than two parts, or also to reinforcements in which the parts are connected by more than one bar.

Landscapes

  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
  • Body Structure For Vehicles (AREA)
  • Pivots And Pivotal Connections (AREA)
  • Support Of Aerials (AREA)
  • Joining Of Building Structures In Genera (AREA)
  • Protection Of Plants (AREA)
  • Orthopedics, Nursing, And Contraception (AREA)

Abstract

1. Ice crampon brace, comprising at least a first (5) and a second (6) parts whose spacing apart is adjustable by means of a connecting bar (7), the bar (7) being mounted for sliding in a tunnel (8) of one at least of the first and second brace parts and being urged by a locking means in translation, ensuring locking thereof in the tunnel, characterized in that : - the tunnel (8) is defined by a cross-piece (11) and a shaft (12) disposed transversely and offset by a distance greater than the thickness of the bar (7), the shaft and the cross-piece being mounted for rotation with respect to each other about a transverse axis of rotation (I-I) off-centred with respect to the mean axis (II-II) of the shaft, - the tunnel and the bar comprise reciprocal transverse male-female engagement members (19, 21, 23), - the relative rotation of the shaft and of the cross-piece, in a first relative angular position (figure 4), causes the male-female engagement members (19, 21, 23) to draw together and engage for longitudinal locking of the bar (7) and, in a second angular position (figure 6), release of the male-female engagement members and freeing of the bar for sliding in the tunnel.

Description

La présente invention a pour objet une armature de crampon à glace munie d'un dispositif de réglage rapide en longueur.The present invention relates to an ice crampon frame provided with a quick length adjustment device.

Les crampons à glace traditionnels comportent une armature métallique reliant et portant, en face inférieure, des pointes acérées destinées à pénétrer dans la glace ou la neige. L'armature comporte, en face supérieure, des moyens pour son adaptation sous la semelle d'une chaussure. Généralement, les crampons comportent des moyens de réglage permettant leur adaptation à des chaussures de pointures différentes. La solution classique consiste à utiliser une armature comprenant au moins une première et une seconde partie dont l'écartement l'une par rapport à l'autre est réglable au moyen d'au moins une barrette de liaison solidaire de la première partie et montée à coulissement par rapport à la seconde partie d'armature ; la barrette de liaison est munie de trous dans lesquels s'engage un boulon traversant un trou correspondant de la seconde partie d'armature, le boulon étant fixé par un écrou.Traditional ice spikes have a metal frame connecting and carrying, on the underside, sharp points intended to penetrate ice or snow. The frame comprises, on the upper face, means for its adaptation under the sole of a shoe. Generally, the studs have adjustment means allowing their adaptation to shoes of different sizes. The conventional solution consists in using a frame comprising at least a first and a second part, the spacing of one with respect to the other is adjustable by means of at least one connecting bar secured to the first part and mounted at sliding relative to the second frame part; the connecting bar is provided with holes in which a bolt engages through a corresponding hole in the second frame part, the bolt being fixed by a nut.

Les crampons à glace sont des dispositifs devant présenter une très grande fiabilité, car utilisés dans des conditions dangereuses en haute montagne. Pour cela, il est nécessaire de serrer les boulons et écrous de manière suffisante pour empêcher tout desserrage pendant l'utilisation. Par conséquent, le desserrage, pour un nouveau réglage en longueur du crampon, ne peut être réalisé qu'en utilisant des outils spéciaux tels que clef ou tournevis. En outre, le réglage en longueur nécessite l'enlèvement complet du boulon, puis l'adaptation des deux parties d'armature sous la semelle de chaussure ; lorsque la longueur est correcte, l'utilisateur doit enlever le crampon de la chaussure, en prenant bien soin de ne pas déplacer les deux parties d'armature l'une par rapport à l'autre, et il doit insérer le boulon dans les trous correspondants de l'armature et de la barrette de liaison et visser l'écrou. Ces opérations, quoique simples, sont relativement fastidieuses et peu commodes. Ces inconvénients sont particulièrement sensibles pour l'utilisation de crampons en location, pour lesquels les réglages sont fréquents.Ice crampons are very reliable devices, because they are used in dangerous conditions in high mountains. For this it is necessary to tighten the bolts and nuts sufficiently to prevent loosening during use. Consequently, loosening, for a new adjustment of the length of the crampon, can only be achieved using special tools such as a wrench or screwdriver. In addition, the length adjustment requires the complete removal of the bolt, then the adaptation of the two frame parts under the shoe sole; when the length is correct, the user must remove the crampon from the shoe, taking care not to move the two parts of the frame relative to each other, and he must insert the bolt in the holes of the armature and the connecting bar and tighten the nut. These operations, although simple, are relatively tedious and inconvenient. These drawbacks are particularly noticeable for the use of rental crampons, for which adjustments are frequent.

La présente invention a notamment pour objet d'éviter les inconvénients des moyens de réglage connus en proposant une nouvelle structure de réglage dont la mise en oeuvre soit nettement plus rapide que les dispositifs à boulons et écrous.The object of the present invention is in particular to avoid the drawbacks of known adjustment means by proposing a new adjustment structure whose implementation is much faster. than bolt and nut devices.

Cette nouvelle structure est réglable sans nécessiter l'usage d'outils spéciaux, tout en étant toutefois compatible avec les exigences de fiabilité des crampons à glace : il convient en particulier d'éviter les manoeuvres intempestives, et d'empêcher le déréglage involontaire pendant l'utilisation du crampon.This new structure is adjustable without requiring the use of special tools, while nevertheless being compatible with the reliability requirements of ice spikes: it is in particular advisable to avoid untimely maneuvers, and to prevent involuntary adjustment during the use of the crampon.

Selon un autre objet, le dispositif de réglage est léger, et ne présente pas de gêne ni sur la face supérieure ni sur la face inférieure de l'armature.According to another object, the adjustment device is light, and does not present discomfort either on the upper face or on the lower face of the frame.

Selon un autre objet, le dispositf de réglage est adaptable sur des armatures existantes à l'aide de modifications mineures de ces armatures ; il est ainsi possible de réaliser industriellement une série de crampons dont certains sont munis du dispositif de l'invention et dont d'autres sont réglables à l'aide des moyens classiques.According to another object, the adjustment device is adaptable to existing reinforcements using minor modifications of these reinforcements; it is thus possible to produce industrially a series of crampons, some of which are provided with the device of the invention and others of which are adjustable using conventional means.

Selon un autre objet de l'invention, le dispositif de réglage est particulièrement robuste et commode d'utilisation.According to another object of the invention, the adjustment device is particularly robust and convenient to use.

Selon un autre objet de l'invention, selon un mode de réalisation, le réglage en longueur de la barrette de liaison s'effectue par rotation d'une partie d'armature par rapport à l'autre pour amener les pointes les unes en face des autres ; ainsi la barrette dépasse par le haut pendant la rotation, et laisse libre la partie inférieure des crampons, permettant par exemple l'adaptation de dispositifs anti- adhérence.According to another object of the invention, according to one embodiment, the length of the connecting bar is adjusted by rotation of a part of the reinforcement relative to the other to bring the points opposite one another others ; thus the bar protrudes from the top during rotation, and leaves the lower part of the crampons free, allowing for example the adaptation of non-stick devices.

En outre, selon l'invention, le crampon une fois replié est très peu encombrant, et les pointes sont protégées.In addition, according to the invention, the crampon once folded is very compact, and the tips are protected.

Pour atteindre ces objets ainsi que d'autres, l'armature comprend au moins une première et une seconde partie reliées par au moins une barrette de liaison ; l'écartement des deux parties d'armature l'une par rapport à l'autre est réglable ; la barrette est montée à coulissement dans un tunnel de l'une au moins des premières et secondes parties d'armature, et est sollicitée par un moyen de verrouillage en translation assurant son verrouillage dans le tunnel ; le tunnel est délimité pour cela par une traverse et un arbre disposés transversalement sur une partie d'armature et décalés d'une distance supérieure à l'épaisseur de la barrette ; l'arbre et la traverse sont montés rotatifs l'un par rapport à l'autre autour d'un axe de rotation transversal décentré par rapport à l'axe moyen de l'arbre ; le tunnel et la barrette comportent des organes d'engagement réciproque transversal mâles-femelles ; la rotation relative de l'arbre de la traverse assure, dans une première position angulaire relative, le rapprochement et l'engagement des organes mâles-femelles pour le verrouillage longitudinal de la barrette, et, dans une seconde position angulaire, le dégagement des organes mâles-femelles et la libération de la barrette. Le verrouillage est ainsi assuré par des organes particulièrement robustes et simples, présentant une fiabilité excellente.To achieve these and other objects, the frame comprises at least a first and a second part connected by at least one connecting bar; the spacing of the two frame parts relative to each other is adjustable; the bar is slidably mounted in a tunnel of at least one of the first and second frame parts, and is biased by a locking means in translation ensuring its locking in the tunnel; the tunnel is delimited for this by a cross member and a shaft arranged transversely on a frame part and offset by a distance greater than the thickness of the bar; the shaft and the cross-member are rotatably mounted with respect to each other about an axis of transverse rotation offset from the mean axis of the shaft; the tunnel and the bar have male-female cross-engagement members; the relative rotation of the cross-member shaft ensures, in a first relative angular position, the approximation and engagement of the male-female organs for the longitudinal locking of the bar, and, in a second angular position, the release of the organs male-female and the release of the bar. Locking is thus ensured by particularly robust and simple members, having excellent reliability.

Dans un premier mode de réalisation, l'arbre est fixe et solidaire de l'armature, tandis que la traverse est montée rotative autour de l'arbre. De préférence, la traverse est entrainée en rotation autour de l'arbre par la barrette de liaison qui reste elle-même en appui sur l'arbre.In a first embodiment, the shaft is fixed and integral with the frame, while the cross member is rotatably mounted around the shaft. Preferably, the cross member is rotated around the shaft by the connecting bar which itself remains in abutment on the shaft.

Dans un second mode de réalisation, la traverse est solidaire de l'armature, tandis que l'arbre est monté rotatif sur l'armature et comprend un moyen de préhension pour son actionnement par l'utilisateur.In a second embodiment, the cross member is secured to the frame, while the shaft is rotatably mounted on the frame and comprises a gripping means for its actuation by the user.

Les organes d'engagement mâles-femelles sont disposés d'une part sur la barrette et d'autre part dans le tunnel ; dans le tunnel, ces organes sont disposés soit sur la traverse soit sur l'arbre. Les modes de réalisations dans lesquels l'organe d'engagement est solidaire de la traverse sont préférables dans les cas où l'on veut un maintien longitudinal sans jeu.The male-female engagement members are arranged on the one hand on the bar and on the other hand in the tunnel; in the tunnel, these members are arranged either on the cross member or on the shaft. The embodiments in which the engagement member is integral with the cross member are preferable in the cases where a longitudinal support is desired without play.

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 :

  • - la figure 1 représente en vue de côté un crampon selon l'invention ;
  • - la figure 2 représente en vue de dessus la zone de liaison entre la barrette et une partie d'armature, en position de verrouillage ;
  • - la figure 3 représente en vue de dessous le dispositif de la figure 2;
  • - la figure 4 représente une vue de côté en coupe longitudinale selon l'axe I-I de la figure 2 ;
  • - la figure 5 représente une vue de face du dispositif de la figure 2 ;
  • - la figure 6 représente une vue de côté en coupe longitudinale du dispositif de la figure 2 en position déverrouillée ;
  • - la figure 7 illustre un autre mode de réalisation des moyens de verrouillage ; et
  • - la figure 8 est une vue générale de dessus d'un crampon selon l'invention.
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:
  • - Figure 1 shows a side view of a crampon according to the invention;
  • - Figure 2 shows a top view of the connection area between the bar and a frame part, in the locked position;
  • - Figure 3 shows a bottom view of the device of Figure 2;
  • - Figure 4 shows a side view in longitudinal section along the axis II of Figure 2;
  • - Figure 5 shows a front view of the device of Figure 2;
  • - Figure 6 shows a side view in longitudinal section of the device of Figure 2 in the unlocked position;
  • - Figure 7 illustrates another embodiment of the locking means; and
  • - Figure 8 is a general top view of a crampon according to the invention.

Comme le représente la figure 1, le crampon comprend une armature 1 dont la face supérieure 2 est destinée à se plaquer sous la semelle d'une chaussure, et dont la face inférieure 3 comprend des pointes acérées 4 pour pénétrer dans la glace. Dans le mode de réalisation représenté, l'armature 1 comprend une première partie 5 et une seconde partie 6 dont l'écartement l'une par rapport à l'autre est réglable au moyen d'une barrette de liaison 7.As shown in Figure 1, the spike comprises a frame 1 whose upper face 2 is intended to be pressed under the sole of a shoe, and whose lower face 3 comprises sharp points 4 to penetrate the ice. In the embodiment shown, the frame 1 comprises a first part 5 and a second part 6, the spacing of one with respect to the other is adjustable by means of a connecting bar 7.

Sur les figures 1 et 8, on a représenté une armature dans laquelle la barrette 7 est reliée à la première partie d'armature 5 par coulissement dans un tunnel 8 de l'armature, et est reliée à la seconde partie 6 d'armature par coulissement dans un second tunnel 9 de l'armature. Le premier tunnel 8 est muni de moyens de verrouillage permettant de bloquer la barrette 7 en translation par rapport à la première partie d'armature 5, le verrouillage pouvant être effectué en diverses positions de la barrette. Le tunnel 9 permet le coulissement libre de la barrette 7, la sortie complète de la barrette 7 étant interdite par une clavette 10 butant contre les parois du tunnel 9.In Figures 1 and 8, there is shown a frame in which the bar 7 is connected to the first frame part 5 by sliding in a tunnel 8 of the frame, and is connected to the second frame part 6 by sliding in a second tunnel 9 of the frame. The first tunnel 8 is provided with locking means making it possible to block the bar 7 in translation relative to the first frame part 5, the locking being able to be effected in various positions of the bar. The tunnel 9 allows the free sliding of the bar 7, the complete exit of the bar 7 being prohibited by a key 10 abutting against the walls of the tunnel 9.

Dans un premier mode de réalisation, représenté sur les figures 2 à 6, le tunnel 8 est délimité par une traverse supérieure 11 tourillonnant autour d'un arbre transversal 12 monté fixe sur l'armature. L'arbre 12 est de forme générale cylindrique à section circulaire, et comporte un méplat central 13 de longueur supérieure à la largeur de la barrette 7. La barrette 7 passe entre l'arbre 12 et la traverse 11, au-dessus de l'arbre. La traverse 11 est un cavalier constitué d'une portion centrale 14 sensiblement parallèle à l'arbre et décalée pour former le tunnel. La portion centrale se raccorde à deux montants d'extrémité 15 et 16 munis de trous pour le passage de l'arbre, les montants 15 et 16 étant écartés l'un de l'autre d'une distance supérieure à la largeur de la barrette. La traverse 11 est bloquée en translation sur l'arbre 12 au moyen de douilles 17 et 18 recouvrant les portions latérales de l'arbre et portant d'une part contre les montants 15 et 16 et d'autre part contre l'armature.In a first embodiment, shown in FIGS. 2 to 6, the tunnel 8 is delimited by an upper cross member 11 journalling around a transverse shaft 12 mounted fixed on the frame. The shaft 12 is of generally cylindrical shape with circular section, and has a central flat 13 of length greater than the width of the bar 7. The bar 7 passes between the shaft 12 and the cross member 11, above the tree. The cross member 11 is a jumper formed by a central portion 14 substantially parallel to the shaft and offset to form the tunnel. The central portion is connected to two end uprights 15 and 16 provided with holes for the passage of the shaft, the uprights 15 and 16 being spaced from each other by a distance greater than the width of the bar . The cross member 11 is blocked in translation on the shaft 12 by means of sockets 17 and 18 covering the lateral portions of the shaft and bearing on the one hand against the uprights 15 and 16 and on the other hand against the frame.

La traverse 11 comprend un ergot 19, dépassant de la face inférieure 20 de sa portion centrale 14. L'ergot 19 a une section correspondant à la dimension de trous 21 répartis sur la longueur de la barrette 7.The cross member 11 comprises a lug 19, protruding from the lower face 20 of its central portion 14. The lug 19 has a section corresponding to the dimension of holes 21 distributed over the length of the bar 7.

La hauteur des montants 15 et 16 et le diamètre de l'arbre 12 sont choisis de façon que la distance entre la face inférieure 20 de la traverse 11 et la surface périphérique cylindrique de l'arbre 12 est comprise entre l'épaisseur de la barrette 7 et entre cette même épaisseur de la barrette augmentée de la hauteur de l'ergot 19. Le méplat 13 a une dimension telle que, dans la position déverrouillée représentée sur la figure 6, la distance entre la face inférieure 20 de la traverse 11 et le méplat est supérieure à la somme de l'épaisseur de la barrette et la hauteur de l'ergot 19. Le méplat 13 est orienté sur la face externe de l'arbre 12, comme le représentent les figures.The height of the uprights 15 and 16 and the diameter of the shaft 12 are chosen so that the distance between the underside 20 of the cross member 11 and the cylindrical peripheral surface of the shaft 12 is between the thickness of the bar 7 and between this same thickness of the bar increased by the height of the lug 19. The flat 13 has a dimension such that, in the unlocked position shown in FIG. 6, the distance between the lower face 20 of the cross member 11 and the flat is greater than the sum of the thickness of the bar and the height of the lug 19. The flat 13 is oriented on the external face of the shaft 12, as shown in the figures.

Le fonctionnement du dispositif est le suivant : dans la position verrouillée, représentée sur les figures 2 à 5, le tunnel 8 est délimité par la face inférieure 20 de la-traverse 11 et par la surface cylindrique extérieure de l'arbre 12. L'épaisseur du tunnel est très légèrement supérieure à l'épaisseur de la barrette. L'ergot 19 se trouve nécessairement engagé dans un trou correspondant 21 de la barrette, et interdit la translation de la barrette dans le tunnel. Cette translation est autorisée lorsque l'on fait pivoter la seconde partie 6 d'armature vers le bas, rapprochant les pointes de la seconde partie d'armature vers les pointes de la première partie 5 d'armature, pour amener la barrette 7 en position verticale représentée sur la figure 6. La barrette imprime un mouvement de rotation à la traverse 11, qui fait alors face au méplat 13. La barrette peut alors être dégagée manuellement de l'ergot 19 par translation en direction de l'arbre 12 comme le représente la flèche 22, et elle peut alors coulisser librement dans le tunnel 8 pour un réglage en longueur. Une fois la longueur choisie, on repousse la barrette 7 en direction de l'ergot 19 pour engager l'ergot dans un des trous 21 de la barrette, puis on imprime une rotation de la barrette pour ramener les deux portions d'armature en prolongement l'une de l'autre.The operation of the device is as follows: in the locked position, shown in FIGS. 2 to 5, the tunnel 8 is delimited by the lower face 20 of the cross-member 11 and by the external cylindrical surface of the shaft 12. The thickness of the tunnel is very slightly greater than the thickness of the bar. The lug 19 is necessarily engaged in a corresponding hole 21 in the bar, and prohibits the translation of the bar in the tunnel. This translation is authorized when the second frame part 6 is pivoted downwards, bringing the points of the second frame part towards the points of the first frame part 5, in order to bring the bar 7 into position vertical shown in Figure 6. The bar imparts a rotational movement to the cross member 11, which then faces the flat 13. The bar can then be released manually from the lug 19 by translation towards the shaft 12 as the represents the arrow 22, and it can then slide freely in the tunnel 8 for a length adjustment. Once the length has been chosen, the bar 7 is pushed back towards the lug 19 in order to engage the lug in one of the holes 21 in the bar, then a rotation of the bar is printed to bring the two armature portions in extension one from the other.

Selon une variante, la section de l'arbre 12 peut être différente de celle représentée sur les figures. Pour un fonctionnement correct, il suffit que l'axe de rotation 1-1 de la traverse, représenté sur la figure 2, soit légèrement décalé par rapport à l'axe moyen II-II de la portion centrale de l'arbre. On peut par exemple donner à la portion centrale de l'arbre une section décentrée, définissant ainsi par rapport à l'axe de rotation I-I une portion à rayon faible équivalente au méplat et une portion à rayon fort équivalente au reste de la surface cylindrique de l'arbre.According to a variant, the section of the shaft 12 may be different from that shown in the figures. For correct operation, it suffices that the axis of rotation 1-1 of the cross member, shown in FIG. 2, is slightly offset from the mean axis II-II of the central portion of the shaft. We can for example give the central portion of the tree an off-center section, thus defining by relative to the axis of rotation II a portion with a small radius equivalent to the flat and a portion with a large radius equivalent to the rest of the cylindrical surface of the shaft.

Sur la figure, on a représenté un tunnel 8 formé d'un arbre inférieur et d'une traverse supérieure. Il est possible d'inverser la position des deux éléments, et de disposer l'arbre en position supérieure et la traverse en position inférieure. » -Selon une autre variante, on peut positionner la portion à rayon faible ou méplat 13 sur la face opposée de l'arbre. Il suffit alors, pour déverrouiller la barrette, de tourner la barrette dans l'autre sens que celui représenté sur la figure 6.In the figure, there is shown a tunnel 8 formed of a lower shaft and an upper cross member. It is possible to reverse the position of the two elements, and to have the shaft in the upper position and the crosspiece in the lower position. - According to another variant, the portion with a small radius or flat 13 can be positioned on the opposite face of the shaft. In order to unlock the bar, it suffices to turn the bar in the other direction than that shown in FIG. 6.

Le verrouillage de la barrette 7 est assuré par un ergot 19 pénétrant dans des trous 21. De manière générale le verrouillage peut être assuré par toute forme d'organes d'engagement de type mâle-femelle. Par exemple on peut prévoir deux séries de trous parallèles sur la barrette dans lesquels s'engagent deux ergots de la traverse ; on peut également prévoir une série d'ergots répartis sur la longueur de la barrette et pénétrant dans un trou de la traverse. On pourra préférer une série d'organes d'engagement disposés en position centrale sur la barrette, comme le représentent les figures, de sorte que pendant le verrouillage une légère rotation de la barrette est rendue possible par exemple autour de l'ergot 19.The locking of the bar 7 is ensured by a lug 19 penetrating into holes 21. In general, the locking can be ensured by any form of engagement members of the male-female type. For example, two series of parallel holes can be provided on the bar in which two lugs of the crosspiece engage; one can also provide a series of pins distributed over the length of the bar and penetrating a hole in the crosspiece. We may prefer a series of engagement members arranged in a central position on the bar, as shown in the figures, so that during locking a slight rotation of the bar is made possible, for example around the lug 19.

Dans le mode de réalisation représenté sur la figure 7, l'organe d'engagement mâle est disposé sur l'arbre 12 : l'arbre 12 comporte une excroissance 23 sur une portion de sa périphérie, excroissance destinée à pénétrer dans un trou correspondant 21 de la barrette 7. Dans ce mode de réalisation, le déverrouillage est assuré en faisant tourner l'arbre 12 par rapport à l'armature, la traverse 11 restant fixe. Dans ce cas l'arbre 12 est muni de moyens de préhension pour son actionnement à la main par l'utilisateur.In the embodiment shown in Figure 7, the male engagement member is disposed on the shaft 12: the shaft 12 has a protrusion 23 on a portion of its periphery, protuberance intended to penetrate into a corresponding hole 21 of the bar 7. In this embodiment, the unlocking is ensured by rotating the shaft 12 relative to the frame, the cross member 11 remaining fixed. In this case the shaft 12 is provided with gripping means for its actuation by hand by the user.

Sur la figure 8 la barrette est maintenue dans le tunnel 8 avec verrouillage, et dans le tunnel 9 en simple coulissement arrêté par une clavette 10. On pourra également, en variante, prévoir un second tunnel 9 également muni de moyens de verrouillage. En outre le dispositif de verrouillage particulier selon l'invention peut s'adapter à des armatures comportant plus de deux parties, ou également à des armatures dans lesquelles les parties sont reliées par plus d'une barrette.In FIG. 8, the bar is held in the tunnel 8 with locking, and in the tunnel 9 in simple sliding stopped by a key 10. It is also possible, as a variant, to provide a second tunnel 9 also provided with locking means. In addition, the particular locking device according to the invention can be adapted to reinforcements comprising more than two parts, or also to reinforcements in which the parts are connected by more than one bar.

La présente invention n'est pas limitée aux modes de réalisation qui ont été explicitement décrits, mais elle en inclut les diverses variantes et généralisations contenues dans le domaine des revendications ci-après.The present invention is not limited to the embodiments which have been explicitly described, but it includes the various variants and generalizations thereof contained in the field of claims below.

Claims (10)

1 - Armature de crampon, comprenant au moins une première (5) et une seconde (6) parties dont l'écartement l'une par rapport à l'autre est réglable par au moins une barrette de liaison (7), la barrette (7) étant montée à coulissement dans un tunnel (8) de l'une au moins des première et seconde parties d'armature et étant sollicitée par un moyen de verrouillage en translation assurant son verrouillage dans le tunnel, caractérisée en ce que : - le tunnel (8) est délimité par une traverse (11) et un arbre (12) disposés transversalement et décalés d'une distance supérieure à l'épaisseur de la barrette (7), l'arbre et la traverse étant montés rotatifs l'un par rapport à l'autre autour d'un axe de rotation transversal (I-I) décentré par rapport à l'axe moyen (II-II) de l'arbre, - le tunnel et la barrette comportent des organes (19, 21) d'engagement réciproque transversal mâle-femelle, - la rotation relative de l'arbre de la traverse assure, dans une première position angulaire relative (figure 4) le rapprochement et l'engagement des organes mêle-femelle (19, 21) pour le verrouillage longitudinal de la barrette (7), et, dans une seconde position angulaire (figure 6), le dégagement des organes mâle-femelle et la libération en coulissement de la barrette dans le tunnel. 1 - Clamp reinforcement, comprising at least a first (5) and a second (6) parts whose spacing relative to one another is adjustable by at least one connecting bar (7), the bar ( 7) being slidably mounted in a tunnel (8) of at least one of the first and second frame parts and being urged by a locking means in translation ensuring its locking in the tunnel, characterized in that: - The tunnel (8) is delimited by a cross member (11) and a shaft (12) arranged transversely and offset by a distance greater than the thickness of the bar (7), the shaft and the cross member being rotatably mounted l '' one with respect to the other around a transverse axis of rotation (II) offset from the mean axis (II-II) of the shaft, the tunnel and the bar comprise members (19, 21) of male-female transverse mutual engagement, the relative rotation of the cross-member shaft ensures, in a first relative angular position (FIG. 4), that the mixing-female members (19, 21) are brought together and engaged for the longitudinal locking of the bar (7), and, in a second angular position (Figure 6), the release of the male-female organs and the sliding release of the bar in the tunnel. 2 - Armature de crampon selon la revendication 1, caractérisée en ce que l'arbre (12) est solidaire de l'armature (5), et la traverse (11) est montée rotative autour de l'arbre.2 - Spike frame according to claim 1, characterized in that the shaft (12) is integral with the frame (5), and the crosspiece (11) is rotatably mounted around the shaft. 3 - Armature selon la revendication 2, caractérisée en ce que la traverse (11) est entraînée en rotation autour de l'arbre par la barrette de liaison (7).3 - Armature according to claim 2, characterized in that the crosspiece (11) is rotated around the shaft by the connecting bar (7). 4 - Armature selon la revendication 1, caractérisée en ce que la traverse (11) est solidaire de l'armature (5), et l'arbre (12) est monté rotatif sur l'armature et comprend un moyen de préhension pour son actionnement à la main.4 - Armature according to claim 1, characterized in that the crosspiece (11) is integral with the armature (5), and the shaft (12) is rotatably mounted on the armature and comprises a gripping means for its actuation by hand. 5 - Armature selon l'une quelconque des revendications 2 à 4, caractérisée en ce que les organes d'engagement mâle-femelle du tunnel sont disposés sur la traverse (11).5 - Armature according to any one of claims 2 to 4, characterized in that the male-female engagement members of the tunnel are arranged on the crosspiece (11). 6 - Armature selon l'une quelconque des revendications 2 à 4, caractérisée en ce que les organes d'engagement mâle-femelle du tunnel sont disposés sur l'arbre.6 - Armature according to any one of claims 2 to 4, characterized in that the male-female engagement members of the tunnel are arranged on the shaft. 7 - Armature selon la revendication 6, caractérisée en ce que l'arbre (12) porte au moins une excroissance (23) destinée à s'engager dans au moins un logement (21) de la barrette de liaison en position de verrouillage.7 - Armature according to claim 6, characterized in that the shaft (12) carries at least one protrusion (23) intended to engage in at least one housing (21) of the connecting bar in the locked position. 8 - Armature selon la revendication 5, caractérisée en ce que l'arbre présente en regard de la barrette une zone à section décentrée par rapport à l'axe de rotation de la barrette, définissant une portion (13) à rayon faible et une portion à rayon fort décalées angulairement, les rayons étant choisis de façon que la portion à rayon faible définit avec la traverse (11) un tunnel dont l'épaisseur est supérieure à l'épaisseur de la barrette augmentée de la course d'engagement des organes d'engagement mâle-femelle, et que la portion à rayon fort définit un tunnel dont l'épaisseur est comprise entre l'épaisseur de la barrette et entre l'épaisseur de la barrette augmentée de la course d'engagement des organes mâle-femelle.8 - Reinforcement according to claim 5, characterized in that the shaft has, opposite the bar, an area with an off-center section relative to the axis of rotation of the bar, defining a portion (13) with a small radius and a portion with a strong radius angularly offset, the spokes being chosen so that the portion with a weak radius defines with the cross-member (11) a tunnel whose thickness is greater than the thickness of the bar increased by the stroke of engagement of the members d male-female engagement, and that the portion with a strong radius defines a tunnel whose thickness is between the thickness of the bar and between the thickness of the bar increased by the engagement stroke of the male-female organs. 9 - Armature selon la revendication 8, caractérisée en ce que : - l'arbre (12) est de forme générale cylindrique à section circulaire et comporte un méplat (13) central de longueur supérieure à la largeur de la barrette (7), - la barrette (7) passe entre l'arbre et la traverse (11) au-dessus de l'arbre, - le méplat (13) est disposé sur la face externe de l'arbre, - la traverse est un cavalier constitué d'une portion centrale (14) sensiblement parallèle à l'arbre et décalée pour former le tunnel et se raccordant à deux montants d'extrémité (15, 16) munis de trous pour le passage de l'arbre, les montants (15, 16) étant écartés d'une distance supérieure à la largeur de la barrette (7), des moyens de butée (17, 18) interdisant le coulissement du cavalier sur l'arbre. 9 - Armature according to claim 8, characterized in that: the shaft (12) is generally cylindrical in shape with a circular section and has a central flat (13) of length greater than the width of the bar (7), - the bar (7) passes between the shaft and the cross-member (11) above the shaft, - the flat (13) is arranged on the external face of the shaft, - The cross is a jumper consisting of a central portion (14) substantially parallel to the shaft and offset to form the tunnel and connecting to two end posts (15, 16) provided with holes for the passage of the shaft, the uprights (15, 16) being separated by a distance greater than the width of the bar (7), stop means (17, 18) preventing the sliding of the rider on the tree. 10 - Armature selon la revendication 9, caractérisée en ce que la barrette (7) est reliée à une première partie (5) d'armature par engagement dans un premier tunnel (8) muni de moyens de verrouillage, et est reliée à une seconde partie d'armature (6) par engagement libre dans un second tunnel (9), la course en coulissement de la barrette dans le second tunnel (9) étant limitée par une clavette (10) interdisant la désolidarisation.10 - Armature according to claim 9, characterized in that the bar (7) is connected to a first part (5) of armature by engagement in a first tunnel (8) provided with locking means, and is connected to a second armature part (6) by free engagement in a second tunnel (9), the sliding stroke of the bar in the second tunnel (9) being limited by a key (10) preventing separation.
EP87420019A 1986-01-24 1987-01-21 Crampon brace with a device to regulate length by means of rotary locking Expired EP0232210B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87420019T ATE44438T1 (en) 1986-01-24 1987-01-21 CRAMPONS WITH ROTARY LENGTH ADJUSTMENT DEVICE.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8601405A FR2593683B1 (en) 1986-01-24 1986-01-24 STUD REINFORCEMENT HAVING A ROTATION LOCKED LENGTH ADJUSTMENT DEVICE
FR8601405 1986-01-24

Publications (2)

Publication Number Publication Date
EP0232210A1 true EP0232210A1 (en) 1987-08-12
EP0232210B1 EP0232210B1 (en) 1989-07-12

Family

ID=9331708

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87420019A Expired EP0232210B1 (en) 1986-01-24 1987-01-21 Crampon brace with a device to regulate length by means of rotary locking

Country Status (4)

Country Link
EP (1) EP0232210B1 (en)
AT (1) ATE44438T1 (en)
DE (1) DE3760299D1 (en)
FR (1) FR2593683B1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3817721A1 (en) * 1988-02-23 1989-11-30 Gabriel Georg & Sohn Length-adjustable connection system and climbing iron equipped therewith
FR2763859A1 (en) * 1997-05-28 1998-12-04 Charlet Moser Ice crampon for mountaineering boot
FR2810890A1 (en) * 2000-06-30 2002-01-04 Charlet Moser Sa Alpine crampon has metal frame with fixed guide roller with retaining lug engaging slide adjustment part and steel wire lock which locks slide in lug after adjustment
US6742286B2 (en) 2001-01-23 2004-06-01 Kahtoola, Inc. Flexible traction system for common shoes

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1982000244A1 (en) * 1980-07-15 1982-02-04 L Peyser Multi-purpose crampon
FR2555872A1 (en) * 1983-12-02 1985-06-07 Fontaine Sports Mountain crampon

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1982000244A1 (en) * 1980-07-15 1982-02-04 L Peyser Multi-purpose crampon
FR2555872A1 (en) * 1983-12-02 1985-06-07 Fontaine Sports Mountain crampon

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3817721A1 (en) * 1988-02-23 1989-11-30 Gabriel Georg & Sohn Length-adjustable connection system and climbing iron equipped therewith
FR2763859A1 (en) * 1997-05-28 1998-12-04 Charlet Moser Ice crampon for mountaineering boot
FR2810890A1 (en) * 2000-06-30 2002-01-04 Charlet Moser Sa Alpine crampon has metal frame with fixed guide roller with retaining lug engaging slide adjustment part and steel wire lock which locks slide in lug after adjustment
US6742286B2 (en) 2001-01-23 2004-06-01 Kahtoola, Inc. Flexible traction system for common shoes
US7089688B2 (en) 2001-01-23 2006-08-15 Kahtoola, Inc. Flexible traction system for common shoes

Also Published As

Publication number Publication date
FR2593683B1 (en) 1988-04-29
EP0232210B1 (en) 1989-07-12
ATE44438T1 (en) 1989-07-15
DE3760299D1 (en) 1989-08-17
FR2593683A1 (en) 1987-08-07

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