EP0615705B1 - Système rotatif de fermeture - Google Patents

Système rotatif de fermeture Download PDF

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Publication number
EP0615705B1
EP0615705B1 EP93120637A EP93120637A EP0615705B1 EP 0615705 B1 EP0615705 B1 EP 0615705B1 EP 93120637 A EP93120637 A EP 93120637A EP 93120637 A EP93120637 A EP 93120637A EP 0615705 B1 EP0615705 B1 EP 0615705B1
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EP
European Patent Office
Prior art keywords
traction cable
rotary
hub
winding pulley
winding
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.)
Expired - Lifetime
Application number
EP93120637A
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German (de)
English (en)
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EP0615705A1 (fr
Inventor
Robert Schoch
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Individual
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Individual
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    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43C—FASTENINGS OR ATTACHMENTS OF FOOTWEAR; LACES IN GENERAL
    • A43C11/00—Other fastenings specially adapted for shoes
    • A43C11/16—Fastenings secured by wire, bolts, or the like
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43C—FASTENINGS OR ATTACHMENTS OF FOOTWEAR; LACES IN GENERAL
    • A43C11/00—Other fastenings specially adapted for shoes
    • A43C11/16—Fastenings secured by wire, bolts, or the like
    • A43C11/165—Fastenings secured by wire, bolts, or the like characterised by a spool, reel or pulley for winding up cables, laces or straps by rotation

Definitions

  • the invention relates to a rotary lock for the adjustable, releasable contraction of two locking elements which can be clamped relative to one another, in accordance with the preamble of claim 1.
  • Twist locks of the type required in the preamble of claim 1 are known from EP-B-393 380 and EP-A-412 290. These known twist locks are specially designed for use on sports shoes.
  • the closing flaps of a sports shoe can be contracted or released by winding or unwinding a traction cable on a winding disc rotatably mounted in a housing, for which purpose this winding disc has a traction cable receiving groove in which at least one end of the traction cable is fixed.
  • a corresponding sports shoe can be adapted to the foot of a user, a precise adjustment of these twist locks is provided in that a releasable locking device or pawl device is arranged in the area between a turning handle acting on a rotary operating shaft and the winding disc.
  • the rotary actuating shaft which is rotatably mounted centrally in the housing, is in a drive connection with the winding disk via a gear arrangement, for example a planetary gear.
  • the invention is based on the object to further improve a twist lock of the type described in such a way that it is characterized by a particularly favorable pull cable arrangement and guide and by an enlarged pull cable holding capacity of the winding disk.
  • FR-A-21 77 294 describes the implementation of a twist lock for shoes, in particular ski boots, with reference to FIGS. 1 to 3.
  • the winding disc which is mounted eccentrically and rotatably in a housing, is driven in one or the other winding direction with the aid of a Maltese drive via a rotary actuating handle.
  • the pulling rope of this embodiment can be wound with its central longitudinal section on a circumferential receiving groove or unwound from there again, this pulling rope being arranged in two diametrically opposite recesses of this winding roll.
  • the winding disc now has on its outer periphery two traction cable receiving grooves, which are incorporated into this outer periphery of the winding disc in two planes with axial spacing and parallel to one another and in an annular manner.
  • a hub through-hole is provided in the plane or in the height of at least one of these two pull-rope receiving grooves, which passes diametrically through a central hub region of this winding disk and through which the pull rope is loosely guided with a central longitudinal section located between its two ends.
  • This design allows, on the one hand, an arrangement and guiding of the at least one pulling rope in two pulling rope receiving grooves lying parallel to one another, as a result of which the winding disk can accommodate a maximum of twice the amount of pulling rope, compared to a winding disk with only a single pulling rope receiving groove, which reduces the mutual bracing area of the pulling together and also releasably releasable locking elements.
  • the pulling rope which interacts with two locking elements which can be braced relative to one another, can at the same time be reliably arranged and guided in the respective pulling rope receiving groove, and in an extremely advantageous manner, free pulling of this pulling rope at least at the beginning of the tensioning or closing process of the corresponding pulling rope.
  • a particularly advantageous embodiment of the invention is also seen in the fact that the two outer mouth sections of the or each hub through-hole in the winding disk expand radially outwards in such a way that - when viewed from above and in the direction of winding rotation - they are considered constant groove width curved backward curved.
  • a corresponding traction cable can also be easily inserted from the outside through associated traction cable lead-through openings in a housing circumferential wall and through an associated hub through-hole without this Twist lock must be disassembled.
  • twist lock While the known designs described at the outset are intended for special use on sports shoes, the construction according to the invention of the twist lock enables use that is not only limited to sports shoes, but can also be adapted to many other useful applications, such as various items of clothing (for example gloves, especially baseball or other sports gloves, belts, outer clothing), protective helmets, bags, cases, quick fasteners for fastening of containers or similar parts on two-wheelers, etc.
  • various items of clothing for example gloves, especially baseball or other sports gloves, belts, outer clothing
  • protective helmets for example gloves, especially baseball or other sports gloves, belts, outer clothing
  • protective helmets for example gloves, especially baseball or other sports gloves, belts, outer clothing
  • bags for example bags, cases, quick fasteners for fastening of containers or similar parts on two-wheelers, etc.
  • twist lock twist lock
  • This rotary lock contains as an essential part a rotatably mounted in a housing 1 winding disc 2, on which - in the present case preferably - a single pull cable 3 can be wound up and unwound, which is passed through pull cable through openings or - holes 4, 5 which are provided in the peripheral wall 1 a of the housing 1.
  • the pull rope 3 interacts with two closing elements, not shown in FIG. 1, which can be adjusted, but releasably pulled together by the twist lock, and can thus be braced relative to one another.
  • the rotary lock also contains a rotary actuation shaft 6 which is rotatably mounted centrally in the housing 1 and which is connected to the winding disk 2 in rotary drive connection via a gear arrangement, preferably via a planetary gear 7 with sun gear 8, planet gears 9 and internal ring gear 10. It is also expedient here if, in a manner known per se, one end (in FIG. 1 the lower end 6a) of the rotary actuation shaft 6 carries a disengageable coupling element 11a of a coupling 11 provided in the drive connection mentioned, which is counteracted by the force of a compression spring 12 exercisable, axial pressure actuation (arrow 13) of the rotary actuation shaft can be disengaged.
  • the rotary drive of the winding disk 2 takes place in such a way that the rotary actuating shaft 6 via a rotary handle 16 which can be rotated relative to the housing 1, which, for example, covers the top of the housing 1 in a cap-like manner, is rotated in the desired direction, as a result of which the central sun gear 8 is driven via the coupling 11, which is in meshing engagement with a plurality of planet gears 9, which in turn are in meshing engagement with a stationary internal ring gear 10 and are freely rotatably guided on trunnions 18, which are fixedly formed on the upper, first outer side 2a of the winding disk 2.
  • At least one stop element for example in the form of a stop arm 17, or in the housing 1 two stop arms 17, be rotatably supported.
  • This stop element comes into contact with the housing 1 after at least approximately two turns of the winding disc, as a result of which the rotary spring Winding disc 2 is limited accordingly to avoid overstraining the pull rope 3.
  • the winding disk 2 is received and guided in a preferably cylindrical shape in a corresponding section of the housing 1 (as can be seen in FIG. 1).
  • a pivot pin 17a of the stop element 17 protrudes briefly from below into the axial bore 14 of the winding disk hub 15 from the lower, second outside 2b of the winding disk 2.
  • the stop element 17 or one of the two stop elements 17 also has a second pivot pin 17b, which is arranged coaxially with the first pin 17a projecting into the axial bore 14 and opposite thereto and engages in a bearing bore 19 which engages in a bottom wall 1b of the housing 1 is provided appropriately (see also Fig. 6).
  • FIG. 1 - A special feature of this embodiment of the twist lock illustrated in FIG. 1 - but also similarly with reference to FIG. 6 - can be seen above all in that the winding disk 2 has two ring-shaped circumferential traction cable receiving grooves 21, 21a on its outer circumference, both of which are essentially the same can be great. These two traction cable receiving grooves 21, 21a are worked into the winding disk 2 (from its outer circumference) in two planes or vertical positions lying axially apart and parallel to each other. Each circumferential traction cable receiving groove 21, 21a is slightly larger in its axial dimension (slot width) than the diameter of the traction cable 3, and its radial dimension is large enough to be able to accommodate a sufficiently large central longitudinal section of the traction cable 3.
  • an associated diametrical hub through bore 22 or 22c is provided for each of the two pulling cable receiving grooves 21, 21a.
  • a hub through bore 22, 22c diametrically crossing the central hub region (hub 15) of this winding disk 2 is provided in the plane or at the height of each circumferential pulling rope receiving groove 21, 21a.
  • the traction cable 3 is loosely guided with middle longitudinal sections 3a, 3b located between its two ends 3c, 3d, ie the diameter of the hub through bores 22, 22c is accordingly only very slightly larger than the diameter of the traction cable 3, but preferably somewhat smaller than the axial width of the traction cable receiving grooves 21, 21a (as shown in FIG. 1). This The fact can also be seen in the horizontal sectional views in FIGS. 2 and 3.
  • both hub through bores 22, 22c - cf. 5 - middle longitudinal sections 3a and 3b of the pull cable 3 are passed in such a way that on the one hand the two ends 3c and 3d of this pull cable 3 located outside the twist lock and on the other hand an outer pull cable loop 3e formed by a longitudinal section with the closing ends in locking engagement stand, as it is illustrated with reference to Fig.8.
  • the winding disk 2 can accommodate approximately twice the length of the pull rope 3 through the two pull rope receiving grooves 21 and 21a, i.e. this winding disk 2 with its pulling rope receiving grooves has, compared to the known embodiments described, with only one receiving groove a double pulling rope receiving capacity.
  • FIGS. 2 and 3 also show that the two outer mouth sections 22a, 22b of the hub through bores are increasingly widening radially outwards in such a way that - in the view of the winding disk 2 (FIGS. 2 and 3) and in its winding rotation direction (Arrow 23) considered - they run with a constant slot width (axial dimension in relation to the winding disk 2) curved backwards in an arc shape, as can be seen particularly well in FIG. 2 at 22a 'and 22b'.
  • This allows a relatively continuous winding of each middle longitudinal section, for example 3a of the pull cable 3 in the transition from the associated hub through bore 22 to the outer peripheral wall of the hub 15.
  • the latter is compared in a comparison between the starting position of the winding disk 2 in Fig.2 and the position of the winding disc 2 in Figure 3 clearly, wherein the winding disc 2 has made a first partial revolution after the starting position.
  • central longitudinal sections 3a, 3b of the pull cable 3 are loosely guided through the associated hub through bores 22, 22c and at the same level or height as the pull cable receiving grooves 21 and 21a on the one hand and the hub through bores 22 and 22c, on the other hand, can each have two pull cable through-openings 4, 5 in the housing peripheral wall 1a arranged diametrically opposite one another; however, the diametrically opposite pull-cable through-openings 4, 5 can also be provided as approximately vertically extending elongated holes in such a way that the two longitudinal pull-cord sections 3a, 3b running one above the other are passed through a respective elongated hole.
  • the latter statement also applies in accordance with the further embodiment to be explained according to FIGS. 6 and 7.
  • the embodiment just described is suitable for very different applications of the twist lock according to the invention.
  • Fig. 4 illustrates a variant of the previously explained embodiment.
  • the two pull cable through openings 4 ', 5' are also arranged in the same plane as the associated pull cable receiving groove 21 and the associated hub through bore 22; however, they are not diametrically opposed, but have a circumferential section UA of less than 180 °, preferably approximately 90 ° from one another. This can be especially the case with sports shoes, especially ski boots, be advantageous if the twist lock is to be attached to a so-called spoiler.
  • FIGS. 6 and 7 An essential difference between the embodiment described above in particular with reference to FIGS. 1 and 5 and that according to FIGS. 6 and 7 can be seen in the fact that according to FIGS. 6 and 7 only a diametrical hub through-bore for the one, lower pull-rope receiving groove 21 22 is provided for the loose passage of a central longitudinal section 3a, while the two ends 3c and 3d of the pull rope 3 are fixed in the plane or height of the upper, second pull rope receiving groove 21a in the winding disk hub 15.
  • This setting can take place, for example, in that corresponding blind bores and through bores - as indicated in FIG.
  • two outer pulling rope loops 3e and 3f are formed by the embodiment selected there, which, as indicated in FIG. 10, can engage the corresponding locking elements, the points of engagement thereof are indicated at 24 and 25 (similar points of attack 24, 25 of corresponding locking elements are also illustrated in FIG. 8).
  • the hub through bore in the winding disk 2 of the embodiments according to FIGS. 6 and 7 can also be shaped in the same way, as is explained in more detail with reference to FIGS. 2 and 3.
  • FIGS. 8 to 10 While in the representations in FIGS. 1, 5, 6 and 7, the longitudinal sections of the pull cable (including the corresponding ends) introduced into the two superimposed pull cable receiving grooves 21, 21 a in the starting position of the winding disk 2 (see FIG. 2) approximately FIGS. 8 to 10 run parallel to one another, according to which the longitudinal sections of the pulling cable (for example middle longitudinal sections 3a, 3b in FIG. 9) inserted into the two superimposed pulling rope receiving grooves 21, 21a are in the starting position of the winding disk 2 cross, preferably run approximately at right angles to each other. 8 and 9 is essentially adapted to the example of FIGS. 1 and 5 and the configuration of FIG. 10 is essentially adapted to the example of FIGS. 6 and 7.
  • the disengageable coupling element 11a projects from the lower shaft end 6a the upper outer side 2a of the winding disk 2 somewhat in the upper end portion of the axial bore 14 Winding disc hub 15 into it.
  • the coupling element 11a and the longitudinal section (3a in FIGS. 6 and 3b in FIG. 1) of the pull cable 3 that is directly adjacent to this coupling element 11a such a clear axial clearance must now be present in the axial bore 14 (see FIG. 1).
  • the axial length of the end section of the axial bore 14 receiving the lower shaft end 6a and the coupling element 11a must extend from the corresponding outer side 2a of the winding disk 2 to the nearest hub through bore 22 or 22c - according to arrow 13 - at least the maximum pressure actuation path (corresponding to play s) plus corresponds at least to coupling element 11a or its thickness. Since in the embodiment according to FIGS. 1 and 5, two middle longitudinal sections 3a, 3b pass through the winding disk hub 15, while in the embodiment according to FIGS.
  • the use of only a single pulling rope is particularly preferred in this rotary lock or rotary clamp.
  • it is also possible to provide at least two traction cables in a corresponding manner it being possible, for example, in the case of two traction cable receiving grooves, to assign a traction cable to each of the receiving grooves of the winding disk.
  • This twist lock according to the invention can be made of any suitable material. At least the main parts of this twist lock can be made of metal, preferably relatively wear-resistant light metal. However, an embodiment is also particularly preferred in which at least the main parts of this twist lock are made of plastic material, preferably of an impact-resistant and wear-resistant plastic material.
  • this twist lock according to the invention can be adapted extremely well to very different applications, it also being distinguished by a particularly flat and space-saving design.

Claims (14)

  1. Fermeture à rotation pour le rapprochement réglable amovible de deux éléments de fermeture pouvant être assujettis l'un à l'autre, comprenant
    a) au moins un câble de traction (3) pouvant être enroulé et coopérant avec au moins l'un des deux éléments de fermeture,
    b) un disque d'enroulement (2) monté rotatif dans une cage (1) pour l'enroulement et le déroulement du câble de traction (3), ce câble de traction passant par des trous de traversée (4, 5) de la cloison circonférentielle (1a),
    c) un arbre tournant d'actionnement (6) qui est monté rotatif sensiblement centralement dans la cage (1) et qui est en liaison de commande par l'intermédiaire d'un mécanisme de transmission (7) avec le disque d'enroulement,
    d) un dispositif amovible à cliquet d'arrêt (20) pour l'immobilisation de l'arbre d'actionnement tournant (6) et du disque d'enroulement (2) à une position qu'occupe la fermeture à rotation,
    e) le disque d'enroulement (2) comportant sur la Circonférence extérieure deux gorges annulaires (21, 21a) de logement du câble de traction qui sont usinées dans deux plans parallèles,
    f) un trou de traversée (22, 22c) qui passe diamétralement à travers une partie centrale du moyeu de ce disque d'enroulement, dans le plan d'au moins l'une de ces deux gorges (21, 21a) de logement du câble de traction, et par lequel passe librement au moins un tronçon central (3a, 3b)de la longueur du câble de traction (3) qui se trouve entre ses deux extrémités.
  2. Fermeture à rotation selon la revendication 1, caractérisée en ce que les deux parties extérieures d'embouchure (22a, 22b) du trou (22, 22c) de traversée du moyeu s'élargissent progressivement radialement vers l'extérieur de manière qu'elles suivent une courbe en arc de cercle vers l'arrière - en vue en plan sur le disque d'enroulement (2) ainsi que dans son sens de rotation d'enroulement (23) - tandis que la largeur de la gorge est constante.
  3. Fermeture à rotation selon la revendication 2, caractérisée en ce que deux trous (4, 5) de passage du câble de traction sont disposés dans la cloison circonférentielle (1a) de la cage, dans le même plan que celui de la gorge (21, 21a) de logement du câble de traction et sont sensiblement diamétralement opposés.
  4. Fermeture à rotation selon la revendication 2, caractérisée en ce que deux trous (4', 5') de passage du câble de traction sont disposés dans la cloison circonférentielle (1a) de la cage dans le même plan que celui de la gorge (21, 21a) de logement du câble de traction et sont à une distance à la circonférence (UA) qui est inférieure à 180° et qui est de préférence d'environ 90°.
  5. Fermeture à rotation selon la revendication 1, caractérisée en ce que deux trous (4, 5) à peu près diamétralement opposés de passage du câble de traction, qui sont réalisés dans la cloison circonférentielle (1a) de la cage, sont associés aux deux gorges (21, 21a) de logement du câble de traction.
  6. Fermeture à rotation selon la revendication 1, caractérisée en ce qu'un trou diamétral (22, 22c) de traversée du moyeu est prévu pour chacune des deux gorges (21, 21a) de logement du câble de traction, des tronçons centraux (3a, 3b)de la longueur du câble de traction passant librement par les deux trous de traversée du moyeu de manière que d'une part les deux extrémités (3c, 3d) de ce câble de traction et d'autre part une boucle extérieure (3e) du câble de traction qui est formée par un tronçon de la longueur du câble de traction se trouvant à l'extérieur de la cage (1) soient en prise avec les éléments de fermeture.
  7. Fermeture à rotation selon la revendication 1, caractérisée en ce que les deux extrémités (3c, 3d) du câble de traction (3) sont fixées dans le moyeu (15) du disque d'enroulement dans le plan de la seconde gorge (21a) de logement du câble de traction, de préférence sont fixées par soudage aux ultrasons, deux boucles extérieures (3e, 3f) du câble de traction qui sont formées à l'extérieur de la cage (1) étant en prise avec les éléments de fermeture.
  8. Fermeture à rotation selon la revendication 1, caractérisée en ce que les deux tronçons de la longueur du câble de traction qui sont introduits dans les deux gorges (21, 21a) de logement du câble de traction sont sensiblement parallèles l'un à l'autre à la position initiale du disque d'enroulement (2).
  9. Fermeture à rotation selon la revendication 1, caractérisée en ce que les deux tronçons de la longueur du câble de traction qui sont introduits dans les deux gorges (21, 21a) de logement du câble de traction se croisent à la position initiale du disque d'enroulement (2) et inscrivent de préférence un angle sensiblement droit.
  10. Fermeture à rotation selon la revendication 1, caractérisée en ce qu'une extrémité (6a) de l'arbre tournant d'actionnement (6) pénètre dans un trou axial central (14) du moyeu (15) du disque d'enroulement et porte un élément libérable (11a) d'un accouplement (11) qui est prévu dans la liaison cinématique entre l'arbre tournant d'actionnement et le mécanisme de transmission et qui peut être dégagé par l'exercice d'une poussée axiale (13), qui peut être annulée, sur l'arbre tournant d'actionnement contre la force d'un ressort et en ce que la longueur axiale de la partie d'extrémité du trou axial (14) qui loge une extrémité (6a) de l'arbre tournant d'actionnement (6) et l'élément d'accouplement (11a) et qui va du côté extérieur correspondant (2a) du disque d'enroulement (2) jusqu'au trou voisin (22, 22c) de traversée du moyeu correspond au moins à la course maximale d'exercice d'une poussée plus au moins la longueur de l'élément d'accouplement (11a).
  11. Fermeture à rotation selon la revendication 10, caractérisée en ce qu'au moins un élément de butée (17) monté rotatif dans la cage (1), coaxialement au disque d'enroulement (2), ainsi que sur le second côté extérieur (2b) du disque d'enroulement qui est à l'opposé de celui de l'accouplement (11), entre en appui contre la cage à la fin d'environ deux tours du disque d'enroulement et limite ainsi le mouvement de rotation du disque d'enroulement et en ce qu'un tourillon (17a) de l'élément de butée (17) pénètre dans le trou axial (14) du moyeu (15) du disque d'enroulement par le second côté extérieur (2b) du disque d'enroulement (2) en laissant à découvert le trou voisin (22) de traversée du moyeu.
  12. Fermeture à rotation selon la revendication 11, caractérisée en ce que l'élément de butée (17) comporte un second tourillon (17b) qui est disposé coaxialement ainsi qu'à l'opposé du premier tourillon (17a) pénétrant dans le trou axial (14) du moyeu (15) du disque d'enroulement et qui pénètre dans un trou de montage (19) prévu convenablement dans une cloison du fond (1b) de la cage (1).
  13. Fermeture à rotation selon la revendication 1, caractérisée en ce qu'au moins les éléments principaux de cette fermeture à rotation sont réalisés en matière plastique, de préférence en matière plastique résistant aux chocs et à l'usure.
  14. Fermeture à rotation selon la revendication 1, caractérisée en ce qu'au moins les éléments principaux de cette fermeture à rotation sont réalisés en métal, de préférence en métal léger relativement résistant à l'usure.
EP93120637A 1993-01-28 1993-12-21 Système rotatif de fermeture Expired - Lifetime EP0615705B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4302401A DE4302401A1 (de) 1993-01-28 1993-01-28 Drehverschluß
DE4302401 1993-01-28

Publications (2)

Publication Number Publication Date
EP0615705A1 EP0615705A1 (fr) 1994-09-21
EP0615705B1 true EP0615705B1 (fr) 1997-03-12

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EP (1) EP0615705B1 (fr)
JP (1) JPH06237802A (fr)
AT (1) ATE149804T1 (fr)
CA (1) CA2113149A1 (fr)
DE (2) DE4302401A1 (fr)

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CA2113149A1 (fr) 1994-07-29
DE4302401A1 (de) 1994-08-04
ATE149804T1 (de) 1997-03-15
DE59305774D1 (de) 1997-04-17
JPH06237802A (ja) 1994-08-30
EP0615705A1 (fr) 1994-09-21

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