EP0368798B1 - Cable tensioner with a winding reel for a ski boot - Google Patents

Cable tensioner with a winding reel for a ski boot Download PDF

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Publication number
EP0368798B1
EP0368798B1 EP89810792A EP89810792A EP0368798B1 EP 0368798 B1 EP0368798 B1 EP 0368798B1 EP 89810792 A EP89810792 A EP 89810792A EP 89810792 A EP89810792 A EP 89810792A EP 0368798 B1 EP0368798 B1 EP 0368798B1
Authority
EP
European Patent Office
Prior art keywords
handle
drum
toothing
winding drum
return device
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
EP89810792A
Other languages
German (de)
French (fr)
Other versions
EP0368798A1 (en
Inventor
Vincenzo Bidoia
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Lange International SA
Original Assignee
Lange International SA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Lange International SA filed Critical Lange International SA
Priority to AT89810792T priority Critical patent/ATE93691T1/en
Publication of EP0368798A1 publication Critical patent/EP0368798A1/en
Application granted granted Critical
Publication of EP0368798B1 publication Critical patent/EP0368798B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B5/00—Footwear for sporting purposes
    • A43B5/04—Ski or like boots
    • A43B5/0427—Ski or like boots characterised by type or construction details
    • A43B5/0435—Adjustment of the boot to the foot
    • A43B5/0443—Adjustment of the boot to the foot to the instep of the foot, e.g. metatarsals; Metatarsal clamping devices
    • A43B5/0447—Adjustment of the boot to the foot to the instep of the foot, e.g. metatarsals; Metatarsal clamping devices actuated by flexible means, e.g. cables, straps
    • A43B5/0449—Adjustment of the boot to the foot to the instep of the foot, e.g. metatarsals; Metatarsal clamping devices actuated by flexible means, e.g. cables, straps with the actuator being disposed at the rear side of the boot
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T24/00—Buckles, buttons, clasps, etc.
    • Y10T24/21—Strap tighteners
    • Y10T24/2183—Ski, boot, and shoe fasteners

Definitions

  • the present invention relates to a cable drum reel tensioner for ski boots, comprising, in a housing, a reel drum secured to an outer handle for its rotational drive, this drum being axially displaceable against the action of a spring by a pressure on the handle and provided with a ratchet edge toothing forming part of a non-return device neutralizable by a pressure on the handle.
  • a tensioner of this type is described in document DE-A-2 341 658.
  • the driving of the drum can only be done by the handle and obtaining a high tension requires force. It can sometimes be difficult to tighten the cable enough.
  • a tensioner equipped with a disengageable non-return device is also described in document EP-A-0 056 953.
  • the non-return device consists of a hub provided with a flange having a cooperating field toothing with a ratchet mounted on a spring.
  • the object of the present invention is to produce a cable drum tensioner of the type described above, the drum of which can be driven in rotation, if necessary, more easily than by the handle.
  • Such a cable tensioner has the characteristics defined in claim 1.
  • Figure 1 shows a shoe equipped with the tensioner.
  • Figure 2 is a sectional view along VI-VI of Figure 3 of the tensioner.
  • FIG. 3 represents, in perspective, two essential elements of the tensioner shown in FIG. 2.
  • Figure 4 is a sectional view along VII-VII of Figure 2.
  • Figure 5 is a view similar to that of Figure 6 in the cable release position.
  • Figure 6 is a sectional view of an alternative embodiment.
  • the cable tensioner shown comprises a coaxial winding drum 25 and come in one piece with an axis 26 at the end of which is fixed a handle 27.
  • the winding drum 25 is housed in a housing 28 in the form of a bowl and its axis 26 crosses a wheel 29 with helical teeth meshing with an endless screw 30 extending in the plane of the wheel 29.
  • the housing 28 is closed by a cover 31.
  • the upper face of the winding drum 25 is provided with a toothing 32 having ratchet teeth. This toothing meshes with a homologous toothing 33 formed on the underside of the wheel 29.
  • the winding drum 25 is held against the helical gear 29 by a spring 34 working in compression between the bottom of the housing 28 and the bottom of a central recess of the winding drum 25.
  • the endless screw 30 has a non-threaded part 30a provided with an annular groove 35 in which engages a pin 36 axially locking the endless screw 30, while allowing it to rotate.
  • One of the ends of the worm 30 projects from the housing 28 and is itself provided with a knurled or fluted button 37 for driving the worm 30.
  • the handle 27 can be rotated in the direction of the winding of the cable 5, that is to say in the direction of the arrow F1, FIG. 3.
  • the teeth 32 of the take-up drum 25 slide on the teeth 33 of the helical gear 29, the winding drum 25 moving away from the toothed wheel 29 by compressing the spring 34.
  • the teeth 32 therefore jump on the teeth 33.
  • the winding drum 25 therefore rotates step, a step corresponding to a tooth. Due to the shape and the teeth 32 and 33, rotation of the take-up drum 25 in the other direction is not possible without driving the wheel 29.
  • the helical gear 29 and the worm 30 constitute a non-return device, in this case an irreversible mechanical reducer, because the angle of the helix of the helical toothing of the wheel 29 and the corresponding angle of the helix of the worm 30 is less than 6 ° .
  • the instantaneous release of the cable 5 is obtained by a pressure P on the handle 27.
  • This pressure P has the effect of compressing the spring 34 and releasing the teeth 32 and 33 from one another, as shown in FIG. 5
  • the winding drum 25 is therefore released from the non-return device and it can be driven freely by the cable 5.
  • FIG. 6 shows such an alternative embodiment.
  • An auxiliary lever 38 is pivoted by means of an axis 39 on the cover 31. This lever 38 is crossed by the axis 26 which has a bearing 40 on which the lever 38 acts when a pressure P1 is exerted on its end .
  • the cable tensioner according to the invention can be mounted in different ways on a shoe.
  • Figure 1 shows an example of use.
  • the tensioner is fixed to the back of the rear half-upper 41 of a shoe with a rear boot.
  • the housing 28 is inside this cavity, between the plastic of this half-rod and the padding 42 covering the interior of this half-rod.
  • the cable 5 passes twice over a pressure distributor 43 and its other end is fixed laterally at 44 to the shell of the shoe.

Abstract

A cable tensioner comprising a winding drum (2) driveable in rotation by means of a handle (12) by the agency of a pinion (10) meshing with a gear wheel (7). The pinion (10) forms part of a non-return device (13, 14). Pressure on the handle (12) releases the drum of the non-return device. According to another embodiment, the non-return device is composed of a worm gear and the drum is released by shifting this.

Description

La présente invention a pour objet un tendeur de câble à tambour enrouleur pour chaussure de ski, comprenant, dans un boîtier, un tambour enrouleur solidaire d'une poignée extérieure pour son entraînement en rotation, ce tambour étant déplaçable axialement contre l'action d'un ressort par une pression sur la poignée et muni d'une denture de chant à dents de rochet faisant partie d'un dispositif anti-retour neutralisable par une pression sur la poignée.The present invention relates to a cable drum reel tensioner for ski boots, comprising, in a housing, a reel drum secured to an outer handle for its rotational drive, this drum being axially displaceable against the action of a spring by a pressure on the handle and provided with a ratchet edge toothing forming part of a non-return device neutralizable by a pressure on the handle.

Un tendeur de ce type est décrit dans le document DE-A-2 341 658. L'entraînement du tambour ne peut se faire que par la poignée et l'obtention d'une tension importante nécessite de la force. Il peut être parfois difficile de tendre suffisamment le câble.A tensioner of this type is described in document DE-A-2 341 658. The driving of the drum can only be done by the handle and obtaining a high tension requires force. It can sometimes be difficult to tighten the cable enough.

Du document EP-A-0 247 487, on connaît un tendeur à tambour d'enroulement entraîné exclusivement par une poignée rotative par l'intermédiaire de pignons coniques. La poignée est retenue par un cliquet solidaire d'un levier de débrayage.Document EP-A-0 247 487 discloses a winding drum tensioner driven exclusively by a rotary handle by means of bevel gears. The handle is retained by a pawl secured to a release lever.

Un tendeur équipé d'un dispositif anti-retour débrayable est également décrit dans le document EP-A-0 056 953. Dans ce tendeur, le dispositif anti-retour est constitué par un moyeu muni d'un flasque présentant une denture de champ coopérant avec un cliquet monté sur un ressort.A tensioner equipped with a disengageable non-return device is also described in document EP-A-0 056 953. In this tensioner, the non-return device consists of a hub provided with a flange having a cooperating field toothing with a ratchet mounted on a spring.

La présente invention a pour but la réalisation d'un tendeur de câble à tambour enrouleur du type décrit plus haut, dont le tambour puisse être entraîné en rotation, le cas échéant, plus facilement que par la poignée.The object of the present invention is to produce a cable drum tensioner of the type described above, the drum of which can be driven in rotation, if necessary, more easily than by the handle.

Un tel tendeur de câble présente les caractéristiques définies à la revendication 1.Such a cable tensioner has the characteristics defined in claim 1.

Le dessin annexé représente, à titre d'exemple, une forme d'exécution de l'invention.The accompanying drawing shows, by way of example, an embodiment of the invention.

La figure 1 représente une chaussure équipée du tendeur.Figure 1 shows a shoe equipped with the tensioner.

La figure 2 est une vue en coupe, selon VI-VI de la figure 3 du tendeur.Figure 2 is a sectional view along VI-VI of Figure 3 of the tensioner.

La figure 3 représente, en perspective, deux éléments essentiels du tendeur représenté à la figure 2.FIG. 3 represents, in perspective, two essential elements of the tensioner shown in FIG. 2.

La figure 4 est une vue en coupe selon VII-VII de la figure 2.Figure 4 is a sectional view along VII-VII of Figure 2.

La figure 5 est une vue analogue à celle de la figure 6 en position de libération du câble.Figure 5 is a view similar to that of Figure 6 in the cable release position.

La figure 6 est une vue en coupe d'une variante d'exécution.Figure 6 is a sectional view of an alternative embodiment.

Le tendeur de câble représenté comprend un tambour enrouleur 25 coaxial et venu d'une pièce avec un axe 26 à l'extrémité duquel est fixée une poignée 27. Le tambour enrouleur 25 est logé dans un boîtier 28 en forme de cuvette et son axe 26 traverse une roue 29 à denture hélicoïdale engrenant avec une vis sans fin 30 s'étendant dans le plan de la roue 29. Le boîtier 28 est fermé par un couvercle 31. La face supérieure du tambour enrouleur 25 est munie d'une denture de chant 32 présentant des dents de rochet. Cette denture engrène avec une denture homologue 33 formée sur la face inférieure de la roue 29. Le tambour enrouleur 25 est maintenu contre la roue à denture hélicoïdale 29 par un ressort 34 travaillant en compression entre le fond du boîtier 28 et le fond d'une creusure centrale du tambour enrouleur 25. La vis sans fin 30 présente une partie non filetée 30a munie d'une gorge annulaire 35 dans laquelle s'engage une goupille 36 verrouillant axialement la vis sans fin 30, tout en lui permettant de tourner. L'une des extrémités de la vis sans fin 30 fait saillie hors du boîtier 28 et elle est elle-même munie d'un bouton 37, moleté ou cannelé pour l'entraînement de la vis sans fin 30.The cable tensioner shown comprises a coaxial winding drum 25 and come in one piece with an axis 26 at the end of which is fixed a handle 27. The winding drum 25 is housed in a housing 28 in the form of a bowl and its axis 26 crosses a wheel 29 with helical teeth meshing with an endless screw 30 extending in the plane of the wheel 29. The housing 28 is closed by a cover 31. The upper face of the winding drum 25 is provided with a toothing 32 having ratchet teeth. This toothing meshes with a homologous toothing 33 formed on the underside of the wheel 29. The winding drum 25 is held against the helical gear 29 by a spring 34 working in compression between the bottom of the housing 28 and the bottom of a central recess of the winding drum 25. The endless screw 30 has a non-threaded part 30a provided with an annular groove 35 in which engages a pin 36 axially locking the endless screw 30, while allowing it to rotate. One of the ends of the worm 30 projects from the housing 28 and is itself provided with a knurled or fluted button 37 for driving the worm 30.

La poignée 27 peut être entraînée en rotation dans le sens de l'enroulement du câble 5, c'est-à-dire dans le sens de la flèche F1, figure 3. Lors de cette rotation, les dents 32 du tambour enrouleur 25 glissent sur les dents 33 de la roue à denture hélicoïdale 29, le tambour enrouleur 25 s'écartant de la roue dentée 29 en comprimant le ressort 34. Les dents 32 sautent donc sur les dents 33. Le tambour d'enroulement 25 tourne donc pas à pas, un pas correspondant à une dent. En raison de la forme et des dents 32 et 33, une rotation du tambour enrouleur 25 dans l'autre sens n'est pas possible sans entraîner la roue 29. Or, la roue à denture hélicoïdale 29 et la vis sans fin 30 constituent un dispositif anti-retour, en l'occurrence un réducteur mécanique irréversible, car l'angle de l'hélice de la denture hélicoïdale de la roue 29 et l'angle correspondant de l'hélice de la vis sans fin 30 est inférieur à 6°.The handle 27 can be rotated in the direction of the winding of the cable 5, that is to say in the direction of the arrow F1, FIG. 3. During this rotation, the teeth 32 of the take-up drum 25 slide on the teeth 33 of the helical gear 29, the winding drum 25 moving away from the toothed wheel 29 by compressing the spring 34. The teeth 32 therefore jump on the teeth 33. The winding drum 25 therefore rotates step, a step corresponding to a tooth. Due to the shape and the teeth 32 and 33, rotation of the take-up drum 25 in the other direction is not possible without driving the wheel 29. However, the helical gear 29 and the worm 30 constitute a non-return device, in this case an irreversible mechanical reducer, because the angle of the helix of the helical toothing of the wheel 29 and the corresponding angle of the helix of the worm 30 is less than 6 ° .

Lorsque la tension sur le câble 5 devient trop forte pour qu'il soit possible ou tout simplement facile de continuer d'entraîner le tambour enrouleur 25 en rotation au moyen de la poignée 27, un complément de tension peut être obtenu en tournant le bouton 37 de la vis sans fin 30. Le dispositif anti-retour est alors utilisé comme réducteur mécanique, c'est-à-dire multiplicateur de force.When the tension on cable 5 becomes too high so that it is possible or simply easy to continue driving the winding drum 25 in rotation by means of the handle 27, additional tension can be obtained by turning the knob 37 of the worm screw 30. The anti device -back is then used as a mechanical reducer, that is to say a force multiplier.

La libération instantanée du câble 5 est obtenue par une pression P sur la poignée 27. Cette pression P a pour effet de comprimer le ressort 34 et de dégager l'une de l'autre les dentures 32 et 33, comme représenté à la figure 5. Le tambour enrouleur 25 est par conséquent libéré du dispositif anti-retour et il peut être entraîné librement par le câble 5.The instantaneous release of the cable 5 is obtained by a pressure P on the handle 27. This pressure P has the effect of compressing the spring 34 and releasing the teeth 32 and 33 from one another, as shown in FIG. 5 The winding drum 25 is therefore released from the non-return device and it can be driven freely by the cable 5.

La libération du tambour enrouleur 25 peut être facilité au moyen d'un levier auxiliaire. La figure 6 montre une telle variante d'exécution. Un levier auxiliaire 38 est pivoté au moyen d'un axe 39 sur le couvercle 31. Ce levier 38 est traversé par l'axe 26 qui présente une portée 40 sur laquelle vient agir le levier 38 lorsqu'on exerce une pression P1 sur son extrémité.The release of the take-up drum 25 can be facilitated by means of an auxiliary lever. Figure 6 shows such an alternative embodiment. An auxiliary lever 38 is pivoted by means of an axis 39 on the cover 31. This lever 38 is crossed by the axis 26 which has a bearing 40 on which the lever 38 acts when a pressure P1 is exerted on its end .

Le tendeur de câble selon l'invention peut être monté de différentes manières sur une chaussure. La figure 1 montre un exemple d'utilisation. Le tendeur est fixé au dos de la demi-tige postérieure 41 d'une chaussure à chaussage par l'arrière. Le boîtier 28 est à l'intérieur de cette cavité, entre la matière plastique de cette demi-tige et le rembourrage 42 recouvrant l'intérieur de cette demi-tige. Le câble 5 passe deux fois sur un répartiteur de pression 43 et son autre extrémité est fixée latéralement en 44 à la coque de la chaussure.The cable tensioner according to the invention can be mounted in different ways on a shoe. Figure 1 shows an example of use. The tensioner is fixed to the back of the rear half-upper 41 of a shoe with a rear boot. The housing 28 is inside this cavity, between the plastic of this half-rod and the padding 42 covering the interior of this half-rod. The cable 5 passes twice over a pressure distributor 43 and its other end is fixed laterally at 44 to the shell of the shoe.

Claims (2)

  1. A cable tensioner with a winding drum for a ski boot, comprising in a housing (28), a winding drum (25) integral with an external handle (27) for driving said drum in rotation, said drum being shiftable axially counter to the action of a spring (34) as a result of pressure on the handle and equipped with an edge toothing (32) in the form of ratchet teeth being part of a non-return device (32, 33, 29, 30) being cancellable as a result of pressure on the handle, characterized by the fact that the non-return device further comprises a gear wheel (29) with a helical toothing equipped with a toothing in the form of ratchet teeth (33), meshing with the edge toothing of the winding drum under the action of the said spring (34), and a worm (30) meshing with the said helical toothing and actuable from the outside, the angle of the helix of the helical toothing being such that the worm is prevented from being driven by the helical gear wheel.
  2. The cable tensioner as claimed in claim 1, characterized by the fact that it comprises an auxiliary lever (38) which passes under the handle and which bears on a bearing surface (40) of the latter for the purpose of pushing the axle of the handle axially counter to the action of the spring.
EP89810792A 1988-11-09 1989-10-20 Cable tensioner with a winding reel for a ski boot Expired - Lifetime EP0368798B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89810792T ATE93691T1 (en) 1988-11-09 1989-10-20 ROPE ADJUSTER WITH WINDING DRUM FOR SKI BOOT.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH4163/88A CH677586A5 (en) 1988-11-09 1988-11-09
CH4163/88 1988-11-09

Publications (2)

Publication Number Publication Date
EP0368798A1 EP0368798A1 (en) 1990-05-16
EP0368798B1 true EP0368798B1 (en) 1993-09-01

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP89810792A Expired - Lifetime EP0368798B1 (en) 1988-11-09 1989-10-20 Cable tensioner with a winding reel for a ski boot

Country Status (6)

Country Link
US (1) US4961544A (en)
EP (1) EP0368798B1 (en)
JP (1) JPH02180201A (en)
AT (1) ATE93691T1 (en)
CH (1) CH677586A5 (en)
DE (1) DE68908849D1 (en)

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CH677586A5 (en) 1991-06-14
JPH02180201A (en) 1990-07-13
ATE93691T1 (en) 1993-09-15
EP0368798A1 (en) 1990-05-16
DE68908849D1 (en) 1993-10-07
US4961544A (en) 1990-10-09

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