EP0255869B1 - Rotating device for a sports shoe, particularly a ski boot - Google Patents

Rotating device for a sports shoe, particularly a ski boot Download PDF

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Publication number
EP0255869B1
EP0255869B1 EP87109608A EP87109608A EP0255869B1 EP 0255869 B1 EP0255869 B1 EP 0255869B1 EP 87109608 A EP87109608 A EP 87109608A EP 87109608 A EP87109608 A EP 87109608A EP 0255869 B1 EP0255869 B1 EP 0255869B1
Authority
EP
European Patent Office
Prior art keywords
rotary
reel
housing
drive
wire reel
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
EP87109608A
Other languages
German (de)
French (fr)
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EP0255869A3 (en
EP0255869A2 (en
Inventor
Robert Schoch
Original Assignee
Weinmann & Co KG Fahrrad- und Motorrad-Teilefabrik GmbH
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Application filed by Weinmann & Co KG Fahrrad- und Motorrad-Teilefabrik GmbH filed Critical Weinmann & Co KG Fahrrad- und Motorrad-Teilefabrik GmbH
Priority to AT87109608T priority Critical patent/ATE84402T1/en
Publication of EP0255869A2 publication Critical patent/EP0255869A2/en
Publication of EP0255869A3 publication Critical patent/EP0255869A3/en
Application granted granted Critical
Publication of EP0255869B1 publication Critical patent/EP0255869B1/en
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Classifications

    • AHUMAN NECESSITIES
    • A43FOOTWEAR
    • A43CFASTENINGS OR ATTACHMENTS OF FOOTWEAR; LACES IN GENERAL
    • A43C11/00Other fastenings specially adapted for shoes
    • A43C11/16Fastenings secured by wire, bolts, or the like
    • AHUMAN NECESSITIES
    • A43FOOTWEAR
    • A43CFASTENINGS OR ATTACHMENTS OF FOOTWEAR; LACES IN GENERAL
    • A43C11/00Other fastenings specially adapted for shoes
    • A43C11/16Fastenings secured by wire, bolts, or the like
    • A43C11/165Fastenings secured by wire, bolts, or the like characterised by a spool, reel or pulley for winding up cables, laces or straps by rotation
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T24/00Buckles, buttons, clasps, etc.
    • Y10T24/21Strap tighteners
    • Y10T24/2183Ski, boot, and shoe fasteners
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T24/00Buckles, buttons, clasps, etc.
    • Y10T24/21Strap tighteners
    • Y10T24/2187Rack and pinion and circular tighteners

Definitions

  • the invention relates to a twist lock for a sports shoe, in particular a ski shoe, according to the preamble of claim 1.
  • Twist locks for ski boots are already known in various embodiments.
  • One of these known twist locks is disclosed for example in DE-C-22 13 720.
  • the twist grip which actuates the twist lock is directly connected in a rotationally fixed manner to a drive sheave acting as a drive sheave, the eccentrically arranged drive pins of which, during the rotational movement of the twist grip, successively engage with radial guide grooves provided as drive elements on the upper side of the sheave, so that gives a kind of Maltese cross gear for the rotary drive of the pulley.
  • the twist lock is designed according to US-A-37 38 027.
  • a twist lock embodiment of the type required in the preamble of claim 1 is known, for example, from EP-A-56 953.
  • the pawl of the pawl device is a suitable recess in the lower one Half of a housing body to be fastened to the shaft of the shoe is assigned, while the pawl, which is designed with an engagement tooth and a projecting shoulder and is biased upwards, is pivotably mounted in a recess in the lid-like upper half of the fixed housing body mentioned.
  • a toothed ring provided with engagement teeth is arranged within an approximately cup-shaped rotary handle arranged above this housing body such that its teeth can come into engagement with the pawl.
  • This toothed ring has an upwardly projecting, bush-like projection, which has a multi-start, external steep thread, which engages with a corresponding internal thread in the center of the rotary handle in such a way that when the rotary handle is to be rotated in one direction in the sense of a closure , this first carries out an axial empty movement on the steep thread until he has brought the toothed ring mentioned into engagement with the pawl and then takes this toothed ring with him in a further rotary movement, the kind of ratchet effect resulting from the interaction of the toothed ring and pawl.
  • twist grip is turned in the opposite direction by first turning the idle thread on the steep thread of the toothed ring until the toothed ring is disengaged from the pawl, whereupon the actual loosening while turning the twist grip is effected.
  • the invention is therefore based on the object of further improving a twist lock of the type required in the preamble of claim 1 in such a way that with an extremely sensitive adjustment of the twist lock and reliable maintenance of the adjustment made, a relatively simple and space-saving construction (in particular with a low overall height) is guaranteed.
  • the toothed ring is provided in a stationary and stationary manner and is incorporated directly into the top of the housing cover.
  • the pawl is from an intermediate disc arranged between the rotary handle and the housing cover, which is rotatably connected to the drive pulley for the pulley, so that the pawl can be rotated together with the intermediate disc and can be brought into engagement with the teeth of the toothed ring in the desired manner.
  • a particularly advantageous embodiment of the invention results from the feature of claim 2, such an embodiment being further developed in a particularly advantageous manner from the features of claim 3.
  • twist lock With this twist lock according to the invention, a relatively flat shape is ensured, inter alia, by the fact that - in contrast to the known embodiment explained last - the twist grip only needs to perform a pure rotary movement, i. H. the twist grip maintains its relatively small overall height even when it is turned in one or the other circumferential direction.
  • FIG. 1 shows an embodiment of how the twist lock 1 according to the invention can be attached to a ski boot, in particular to the outer boot formed by a plastic shell 2.
  • This belonging to a known ski boot plastic shell 2 is provided in the front and upper area with an approximately slit-like opening 3, which facilitates the insertion of an inner shoe (not shown) into the shell 2 and the putting on and taking off of the ski boot itself.
  • the plastic shell 2 also has an opening 3 covering, also made of plastic tongue 4 which is pivotable about a joint 5 arranged in the toe, so that it can be folded away from the main part of the shell 2.
  • the twist lock 1 contains a flat housing 6, which is fastened on the upper of the ski boot, which is formed by the plastic shell 2, preferably on the tongue 4, and a housing 6 arranged on the outside (top) of the housing for this purpose, rotatable rotary handle 7 and two pulling cable tensioning elements 8, 9, which are led out on opposite sides of the housing 6 and in this case are designed in the form of rope loops and with hook-like elements 10, 11 can be engaged.
  • These hook-like elements 10, 11 are fastened on opposite closing flaps of the plastic shell 2 of the ski boot.
  • a pulley By means of a rotary drive connection within the housing 6, a pulley can be rotated in one direction or the other with the help of the rotary handle 7, so that the effective length of the pull cord tension members 8, 9 in opposite directions in the sense of loosening by a corresponding rotary movement of the rotary handle 7 and tightening said closing flap (via the hook-like elements 10, 11) can be changed.
  • the tongue 4 is provided at the height of the twist lock 1 with two lateral extensions 4a, 4b, which serve to cover the two tension cable tensioning elements 8 and 9 respectively.
  • twist lock 1 The formation of the essential individual parts of the twist lock 1 can be seen above all in the exploded vertical sectional view in FIG. 2, while further details of these parts and their functional arrangement are illustrated above all in FIGS. 3 to 6.
  • the relatively flat housing 6 of the twist lock 1 has a relatively large, in the top view (see FIG. 4) circular recess 12 that is accurate in diameter and depth is adapted for receiving a pulley 13.
  • Guide channels 14, 15 open into this recess 12 at approximately diametrically opposite points, through which the corresponding ends 8a, 9a of the tension cable tensioning elements 8, 9 are led out of the housing 6 on opposite sides.
  • the clamping element ends 8a and 9a located within this housing 6 are - as indicated in FIG.
  • the rope pulley 13 is provided on its upper side in the form of a Maltese cross disk with radial guide grooves 17 distributed around the circumference as drive elements.
  • a drive pulley 18 is likewise arranged essentially in the housing 6 somewhat above the cable pulley 13.
  • this drive disk 18 is likewise essentially arranged in the housing 6 and is designed as a drive disk with two drive pins 19 arranged off-center, which are approximately diametrically opposed to one another protrude downward from the underside of the drive pulley 18 against the pulley 13.
  • Appropriate arrangement and mounting of this drive pulley 18 in the housing 6 results in the arrangement with the pulley 13 a type of Maltese cross gear, by which - as can best be seen from FIG.
  • the housing 6 is covered at the top by a cover 22, which on its underside has fastening pins 23, 23a running parallel to the vertical main axis 1a, of which the one fastening pin 23a simultaneously forms a pivot bearing pin for guiding and mounting the rope pulley 13 (cf. also FIG .3).
  • These mounting pins 23, 23a preferably have threaded bores 23 ⁇ or 23a ⁇ , into which screws 24 inserted from the housing base 6a are screwed, so that the housing cover thereby 22 is detachably connected to the housing base 6a via the fastening pins 23, 23a. While only two fastening pins 23, 23a are illustrated in the drawing, it goes without saying that more than two such fastening pins can also be provided distributed over the circumference of the housing cover 22.
  • the housing cover 22 Coaxial to the vertical main axis 1a of the rotary closure 1, the housing cover 22 has a recess 25 for receiving the drive disk 18 and a cylindrical bearing bore 26 in which the lower, cylindrical end 27a of an upwardly projecting pin 27 of the drive disk 18 is centrally supported and guided .
  • the upper end 27b of this pin 27 projects upward beyond the bearing bore 26 and is provided with an external square (see also FIG. 4, left half), a threaded bore 27c also being provided centrally in this pin 27.
  • a toothed ring 28 with a plurality of engagement teeth 29 is incorporated into the top of the housing cover 22 and is part of a pawl device to be explained in more detail (see also FIGS. 5 and 6).
  • this toothed ring 28 has twelve engagement teeth 29 evenly distributed over the circumference; this number of engagement teeth 29 can be adapted to the respectively desired fine adjustment of the twist lock 1.
  • a pawl 30 which is designed in the manner of a two-armed lever and is pivotably supported via a pivot axis 31 in a matched passage recess 32 of an intermediate disk 33 located in the area above the toothed ring 28 (cf. also FIG. 3, 5 and 6).
  • the pawl 30 has a lower projecting tooth 30a (on one lever arm) and an upper projecting tooth 30b (on its other lever arm). The pawl 30 can engage the teeth 29 of the toothed ring 28 with the lower projecting tooth 30a (as shown in FIGS.
  • the intermediate disc 33 arranged between the rotary handle 7 and the housing cover 22 is freely rotatably supported and guided with a lower cylindrical, central recess 33a on a central, cylindrical bearing projection 22a on the upper side of the housing cover 22. It also has a square through opening located centrally to the main axis 1a 35, into which the upper square 27b of the drive pulley pin 27 engages, so that a rotationally fixed connection between the drive pulley 18 and the intermediate pulley 33 is formed.
  • the pawl 30 is preferably - as illustrated in FIGS. 2, 5 and 6 - inserted and fixed from above into the through recess 32 in the intermediate ring 33 with the aid of two bearing stones 36 arranged on both sides.
  • the ends of the pivot axis 31 also protrude into these bearing blocks 36, a coil spring 37 being arranged on the pivot axis 31 in the region between the one bearing block 36 and the pawl 30 and connected to the pawl 30 and bearing block 36 in such a way that the pawl 30 with its lower projection tooth 30a is resiliently biased in the direction of the engagement teeth 29 of the toothed ring 28.
  • the rotary handle 7 provided with a lid-like widening 7a covers the intermediate disk 33 at the top, with a central, cylindrical bearing projection 33b protruding from the upper side of the intermediate disk 33 into a central, likewise cylindrical recess 7b on the underside of the rotary handle 7 for the purpose of guiding and storing it intervenes.
  • a central, stepped bore 38 is provided in the twist grip 7, through which a collar screw 39 can be inserted such that its lower one Threaded end 39a can be screwed into the threaded bore 27c of the drive disk pin 27 in order to create the arrangement of the rotary closure 1 shown in particular in FIG.
  • the collar screw 39 can be designed in the form of an Allen screw and completely countersunk in the bore 38.
  • the twist grip 7 is limitedly rotatably supported and guided on the upper side of the intermediate disk 33 to create an empty travel LW (FIGS. 4 and 7).
  • the rotary handle 7 has on its underside (in the present example preferably approximately diametrically opposite the control recess 34) a downwardly projecting driver pin 40, which engages in an approximately annular sector-shaped recess 41 which, from the top, into the intermediate disk 33 is incorporated, in the present case extends in the circumferential direction over an angular range of approximately 30 ° and forms stop ends 41a, 41b with their ends pointing in the circumferential direction.
  • stop ends 41a, 41b limit, when they come into contact with the driving pin 40 in one or the other direction of rotation of the rotary handle 7, the free travel LW of this rotary handle 7.
  • the rotary handle 7 by the combination of rotary handle 7 and intermediate washer 33 its rotary motion in one or other direction (arrow 20 in FIG. 4) corresponding to the length of the free travel LW is relatively freely rotatable and is rotatably supported and guided relative to the intermediate disk 33.
  • the length of this free travel LW is matched to the circumferential length of the control recess 34, in which the upper projection tooth 30b of the pawl 30 engages as a kind of control projection. Accordingly, if the rotary handle 7 - according to arrow 20 in FIG.
  • the pulley 13 is rotated in the direction of arrow 21 via the Maltese cross gear, so that the corresponding ends 8a and 9a of the traction cable tensioning elements 8, 9 are wound on this pulley 13 and thus the shoe closing flaps are tightened.
  • the pawl 30 comes successively with the circumferentially distributed teeth 29 of the toothed ring 28 engaged.
  • the rotary setting of the rotary closure 1 which is then achieved is locked in the tightened position by the pawl engagement position. In this way, the associated ski boot can be closed extremely sensitively and with millimeter precision.
  • twist lock 1 If the twist lock 1 is then to be released in order to open the ski boot again, then the twist grip 7 - against the arrow 20 in FIG. 4 - is turned back in the direction of the loosening-rotational movement, whereby the twist grip 7 is again alone and according to the free travel LW freely rotatable relative to the intermediate disk 33 until its driver pin 40 has reached the opposite free travel end position at the stop end 41b in the recess 41, as illustrated in FIG.
  • the ramp-like control surface 34a has at the same time pushed over the surface of the upper projection tooth 30b of the pawl 30 facing it, so that - contrary to the spring preload - the lower projection tooth 30a of the pawl 30 has been removed from the engagement teeth 29 of the toothed ring 28 Intervention has been brought.
  • the pawl 30 has been brought into its unlocked position and is held therein for as long as the rotary handle 7 is rotated in the direction of the release rotary movement or the driver pin 40 of this rotary handle 7 is held in the free travel end position shown in FIG.
  • the so unlocked Pawl device thus allows trouble-free actuation of the Maltese cross gear in such a way that the rope pulley 13 is rotated counter to the arrow 21 in FIG or open.
  • the rotary movement of the rotary handle 7 is transmitted to the cable pulley 13 with the aid of a Maltese cross gear (drive pulley 18 and a cable pulley 13 designed in the form of a Maltese cross pulley), as a result of which the traction cable tensioning elements 8, 9 are tightened in stages or in stages.
  • a gear drive can transmit the rotary movement of the rotary handle 7 to the pulley 13, whereby an essentially continuous tightening of the traction cable tensioning elements 8, 9 can be made possible.
  • FIGS. 9 and 10 Detailed views of an exemplary embodiment of a gear drive are illustrated in FIGS. 9 and 10.
  • the sheave 13 itself can in turn be embodied and mounted essentially in the same way as described above.
  • an approximately disk-shaped gear wheel 50 is fastened (coaxially to it) to its upper side (for example — as indicated — pinned) with teeth 51 provided on the outer circumferential edge.
  • a drive pulley 18 ⁇ is in drive connection with this gearwheel 50, said drive pulley 18 ⁇ being able to be arranged in the same way with the remaining parts of the rotary closure via its upwardly projecting pin 27 ⁇ as the drive pulley 18 in the previous example.
  • this drive pulley 18 ⁇ has a suitable number of drive teeth 52 on its peripheral edge, which mesh with the teeth 51 of the gear 50. In this way, the drive pulley 18 ⁇ forms a type of drive pinion for the gear 50 of the pulley 13.
  • a Maltese cross gear (FIGS. 2 to 8) and, on the other hand, a simple spur gear (FIGS. 9 and 10) are provided between the washer and the pulley, ie, as the drive for this pulley.
  • a further possibility for driving the rope pulley is that a planetary gear is provided between the intermediate disk and the rope pulley becomes. Such an embodiment is described below in particular with reference to FIGS. 11 and 12.
  • twist lock of this example contains a flat housing 6 ⁇ to be fastened on the shaft of a ski boot, on which a housing cover 22 ist is detachably fastened at the top, which can be done, for example, by means of screws 53, which are indicated by dash-dotted lines and distributed over the circumference.
  • This housing cover 22 ⁇ can have upwardly projecting, annular peripheral edge 54, which delimits an upwardly open, cylindrical recess 55, in which the intermediate disc 33 ⁇ , indicated only by dash-dotted lines, is accommodated in terms of diameter and height, and is freely rotatable.
  • the rope pulley 13 Falle is likewise rotatably received and arranged in a recess 12 ⁇ (as in the first exemplary embodiment) which is precisely adapted in diameter and depth, but this recess 12 ⁇ is provided centrally in the essentially cylindrical housing 6 ⁇ .
  • the rope pulley 13 ⁇ is mounted centrally in the flat housing 6 Lag via a bearing projection 13 ⁇ a projecting downward from its underside, in that this bearing projection 13 ⁇ a is accommodated in a central bore 56 of the housing base 6a ⁇ in a suitable and freely rotatable manner.
  • the drive pulley for the cable pulley is designed in the form of a drive sun gear 18 ⁇ and is arranged centrally in an internally toothed ring gear 57 which surrounds the cable pulley 13 ⁇ in the region of its upper side and is rotatably supported by the flat housing 6 ⁇ .
  • this drive sun gear 18 ⁇ on the one hand and the internally toothed ring gear 57 on the other hand there is at least one Planet gear 58 in meshing engagement; in the present case - as can be seen in particular from FIG.
  • planet gears 58 are preferably provided in a uniform circumferential distribution within the ring gear 57.
  • These in the form of small pinions pinion gears 58 are freely rotatably mounted on the top of the pulley 13 by being freely rotatable and loosely attached to the associated cylindrical bearing journals projecting above.
  • the rope pulley 13 ' has a preferably continuous central guide bore 60 in which a guide pin 61 projecting centrally downward from the drive sun gear 18' is freely rotatably guided and supported.
  • a pin 27 ⁇ also firmly connected to it centrally upwards, which has a lower, cylindrical end 27a ⁇ and an upper end 27b ⁇ adjoining it upwards, which with a Outside square is provided. While - again essentially the same as in the first exemplary embodiment - the cylindrical lower end 27a ⁇ is centrally supported and guided in a cylindrical bearing bore 26 ⁇ of the housing cover 22 ⁇ , the outer square of the upper pin end 27b ⁇ protrudes into the suitable square through opening 35 ⁇ of the intermediate disk 33 ⁇ , so that between this upper end of the pin 27b ⁇ (and thus also between the drive sun gear 18 ⁇ ) and the intermediate disc 33 ⁇ in turn results in a rotationally fixed connection.
  • the internally toothed ring gear 57 is generally designed in the form of a flat ring, and it is also inserted in a suitable, upwardly open recess 62 of the housing 6 ⁇ in a rotationally secure manner.
  • the latter could happen, for example, in that an annular toothed ring is fixed simultaneously with the screws 53 for fastening the housing cover 22 ⁇ or that, for example, at least one peripheral shoulder of the toothed ring engages in a corresponding recess on the top of the housing 6 ⁇ .
  • the ring gear 57 is rotatably inserted into the recess 62 of the housing 6 ⁇ that this internally toothed ring gear 57 is designed on its outer peripheral side 63 in the form of a polygon, preferably in the form of a hexagon or octagon (as shown in Fig. 12); accordingly, the recess 62 is also polygonal (preferably hexagonal or octagonal) on its inner circumferential side in a precise adaptation.
  • the internally toothed ring gear 57 therefore only needs to be loosely inserted into the recess 62 when assembling the twist lock.
  • a toothed ring 28 ⁇ with a plurality of engagement teeth 29 ist is incorporated into its upper side, in practically the same manner as explained in detail with reference to the first exemplary embodiment, which with the pawl (30), which is not illustrated in any more detail here. work together.
  • the housing cover 22 'in the area of its outer circumference can also have a downwardly projecting edge 64 which engages in a suitable circumferential recess 65.
  • the outer circumference of the housing 6 ⁇ and housing cover 22 ⁇ are cylindrical and flush with each other.
  • approximately cylindrical nipples are attached to the inner ends 8a and 9a of the traction cable tensioning elements 8 and 9, which are inserted positively and detachably into the bores of the rope pulley 13 and 13 13 .
  • the nipple 66 at the inner end, for. B. 9a ⁇ , of a traction cable tensioning element 9 ⁇ protrude downward from the pulley 13 ⁇ and be guided in a groove 67 machined into the bottom 6a ⁇ of the flat housing 6 ⁇ , the course of which can be seen in particular from FIG. 13.
  • 13 in the form of an almost full circular ring, but the two opposite ends 67a and 67b of this groove 67 form end stops which cooperate with the downwardly projecting nipple 66 and which rotate the cable pulley 13 ⁇ in both directions of rotation limit such that the sheave 13 ⁇ in this case - between the two groove ends 67a and 67b - can perform almost a full turn when loosening or tightening.
  • FIG. 14 A modified embodiment variant of the groove in the housing base 6 ⁇ previously explained in particular with reference to FIG. 13 and limiting the rotary movement of the rope sheave is explained with reference to FIG. 14, in which parts similar to those in FIGS. 11 and 13 are provided with the same reference numerals.
  • the said groove 68 in the bottom of the housing 6 ⁇ in this case is in the form of a spiral which, for example - as shown - represents one and a half times the rotation.
  • the opposite ends 68a and 68b of this spiral groove 68 in turn act as end stops for the nipple 66 projecting downwards into this groove on the inside End of a traction cable tensioning element. So that the nipple 66 can follow the spiral groove 68, it is expediently held in the radial direction in the cable pulley 13 ⁇ to a limited extent.
  • the rope pulley 13 ⁇ can thus execute a one and a half times the rotation corresponding to the length of the spiral groove 68 during its loosening or tightening rotary movement.
  • this twist lock according to the invention can be made at least partially from metal or an impact-resistant, low-wear plastic or from a reasonable combination of such metal and plastic parts.

Abstract

In this rotary fastener which can be used particularly on ski boots two traction wire tensioning elements can be altered in their effective length in opposing directions by a rotary movement in one or the other direction in order to tighten or loosen shoe closure flaps. For the accurate adjustment of the rotary fastener and accurate adaptation of the shoe to a foot a ratchet arrangement is provided in the region between the rotary knob and the wire reel for the traction wire tensioning elements and contains an intermediate element which supports a pawl and is rotatable with the rotary knob whilst maintaining a free play as well as a gear ring inserted in a housing cover and is thereby of simple and compact construction.

Description

Die Erfindung betrifft einen Drehverschluß für einen Sportschuh, insbesondere Skischuh, gemäß dem Oberbegriff des Patentanspruches 1.The invention relates to a twist lock for a sports shoe, in particular a ski shoe, according to the preamble of claim 1.

Drehverschlüsse für Skischuhe sind bereits in verschiedenen Ausführungsformen bekannt. Einer dieser bekannten Drehverschlüsse ist beispielsweise in DE-C- 22 13 720 offenbart. In diesem Falle ist der die Betätigung des Drehverschlusses bewirkende Drehgriff direkt mit einer als Antriebsscheibe wirkenden Treiberscheibe drehfest verbunden, deren außermittig angeordnete Antriebszapfen während der Drehbewegung des Drehgriffes nacheinander mit als Antriebselemente an der Oberseite der Seilscheibe vorgesehenen, radialen Führungsnuten in Eingriff kommen, so daß sich eine Art Malteserkreuzgetriebe für den Drehantrieb der Seilscheibe ergibt. Auf diese Weise kann ein gewissermaßen stufenweises Festziehen bzw. Lösen der Schließlappen eines zugehörigen Sportschuhes herbeigeführt werden. Nach etwa dem gleichen Grundprizip ist auch der Drehverschluß gemäß US-A- 37 38 027 ausgebildet.Twist locks for ski boots are already known in various embodiments. One of these known twist locks is disclosed for example in DE-C-22 13 720. In this case, the twist grip which actuates the twist lock is directly connected in a rotationally fixed manner to a drive sheave acting as a drive sheave, the eccentrically arranged drive pins of which, during the rotational movement of the twist grip, successively engage with radial guide grooves provided as drive elements on the upper side of the sheave, so that gives a kind of Maltese cross gear for the rotary drive of the pulley. In this way, a gradual tightening or loosening of the closing flaps of an associated sports shoe can be brought about. According to the same basic principle, the twist lock is designed according to US-A-37 38 027.

Ferner ist eine Drehverschluß-Ausführungsform der im Oberbegriff des Anspruches 1 vorausgesetzten Art etwa aus EP-A- 56 953 bekannt. Hierbei ist der Sperrklinke der Sperrklinkeneinrichtung eine passende Ausnehmung in der unteren Hälfte eines auf dem Schaft des Schuhes zu befestigenden Gehäusekörpers zugeordnet, während die mit einem Eingriffszahn und einer vorstehenden Schulter ausgebildete, nach oben vorgespannte Sperrklinke schwenkbeweglich in einer Ausnehmung der deckelartigen oberen Hälfte des genannten, ortsfesten Gehäusekörpers gelagert ist. Innerhalb eines oberhalb dieses Gehäusekörpers angeordneten, etwa becherförmig ausgebildeten Drehgriffes ist ein mit Eingriffszähnen versehener Zahnring so angeordnet, daß seine Zähne mit der Sperrklinke in Eingriff kommen können. Dieser Zahnring weist einen nach oben vorstehenden, buchsenartigen Vorsprung auf, der ein mehrgängiges, äußeres Steilgewinde aufweist, das mit einem entsprechenden Innengewinde im Zentrum des Drehgriffes derart in Eingriff steht, daß, wenn der Drehgriff in der einen Richtung im Sinne eines Schließens gedreht werden soll, dieser zunächst eine axiale Leerbewegung auf dem Steilgewinde ausführt, bis er den genannten Zahnring mit der Sperrklinke in Eingriff gebracht hat und dann bei einer weiteren Drehbewegung diesen Zahnring mitnimmt, wobei sich durch das Zusammenwirken von Zahnring und Sperrklinke eine Art Ratschenwirkung ergibt. Soll dann der Drehverschluß wieder geöffnet werden, dann wird der Drehgriff entgegengesetzt gedreht, indem zunächst wiederum eine Leerdrehung auf dem Steilgewinde des Zahnringes erfolgt, bis der Zahnring von der Sperrklinke außer Eingriff ist, worauf dann das eigentliche Lösen während des Weiterdrehens des Drehgriffes bewirkt wird.Furthermore, a twist lock embodiment of the type required in the preamble of claim 1 is known, for example, from EP-A-56 953. Here, the pawl of the pawl device is a suitable recess in the lower one Half of a housing body to be fastened to the shaft of the shoe is assigned, while the pawl, which is designed with an engagement tooth and a projecting shoulder and is biased upwards, is pivotably mounted in a recess in the lid-like upper half of the fixed housing body mentioned. A toothed ring provided with engagement teeth is arranged within an approximately cup-shaped rotary handle arranged above this housing body such that its teeth can come into engagement with the pawl. This toothed ring has an upwardly projecting, bush-like projection, which has a multi-start, external steep thread, which engages with a corresponding internal thread in the center of the rotary handle in such a way that when the rotary handle is to be rotated in one direction in the sense of a closure , this first carries out an axial empty movement on the steep thread until he has brought the toothed ring mentioned into engagement with the pawl and then takes this toothed ring with him in a further rotary movement, the kind of ratchet effect resulting from the interaction of the toothed ring and pawl. If the twist lock is then to be opened again, the twist grip is turned in the opposite direction by first turning the idle thread on the steep thread of the toothed ring until the toothed ring is disengaged from the pawl, whereupon the actual loosening while turning the twist grip is effected.

Wenn man bei dieser aus EP-A- 56 953 bekannten Ausführung allein den Steilgewindeeingriff zwischen Zahnring und Drehgriff (zur Herstellung der Leerdrehung) betrachtet, dann ergibt diese Ausbildung nicht nur eine besonders aufwendige Konstruktion, und dadurch bedingte hohe Fertigungskosten, sondern sie erfordert auch eine unerwünscht große Bauhöhe (einerseits aufgrund der konstruktiven Gestaltung und andererseits aufgrund der axialen Bewegungsmöglichkeit des Drehgriffes).If you only consider the steep thread engagement between the toothed ring and the rotary handle (for the production of the idle rotation) in this embodiment known from EP-A-56 953, then this design not only results in a particularly complex construction, and consequently high manufacturing costs, but it also requires one undesirably large height (on the one hand due to the structural design and on the other hand due to the possibility of axial movement of the rotary handle).

Der Erfindung liegt daher die Aufgabe zugrunde, einen Drehverschluß der im Oberbegriff des Anspruches 1 vorausgesetzten Art in der Weise weiterzuverbessern, daß bei einer äußerst feinfühligen Einstellung des Drehverschlusses und einer zuverlässigen Aufrechterhaltung der vorgenommenen Einstellung eine verhältnismäßig einfache und raumsparende Konstruktion (insbesondere mit niedriger Bauhöhe) gewährleistet ist.The invention is therefore based on the object of further improving a twist lock of the type required in the preamble of claim 1 in such a way that with an extremely sensitive adjustment of the twist lock and reliable maintenance of the adjustment made, a relatively simple and space-saving construction (in particular with a low overall height) is guaranteed.

Diese Aufgabe wird erfindungsgemäß durch die im Kennzeichen des Anspruches 1 angegebenen Merkmale gelöst.This object is achieved by the features specified in the characterizing part of claim 1.

Bei dieser erfindungsgemäßen Ausführung ist der Zahnring ortsfest und stationär vorgesehen und direkt in die Oberseite des Gehäusedeckels eingearbeitet. Die Sperrklinke wird dagegen von einer zwischen dem Drehgriff und dem Gehäusedeckel angeordneten Zwischenscheibe getragen, die drehfest mit der Antriebsscheibe für die Seilscheibe verbunden ist, so daß auch die Sperrklinke zusammen mit der Zwischenscheibe drehbar ist und dabei in gewünschter Weise mit den Zähnen des Zahnringes in Eingriff gebracht werden kann.In this embodiment according to the invention, the toothed ring is provided in a stationary and stationary manner and is incorporated directly into the top of the housing cover. The pawl, however, is from an intermediate disc arranged between the rotary handle and the housing cover, which is rotatably connected to the drive pulley for the pulley, so that the pawl can be rotated together with the intermediate disc and can be brought into engagement with the teeth of the toothed ring in the desired manner.

Diese erfindungsgemäße Ausbildung sind bereits besonders günstige Voraussetzungen für eine einfache, zuverlässige und raumsparende Konstruktion.These training according to the invention are already particularly favorable conditions for a simple, reliable and space-saving construction.

Eine besonders vorteilhafte Ausgestaltung der Erfindung ergibt sich durch das Merkmal des Anspruches 2, wobei eine solche Ausgestaltung in besonders vorteilhafter Weise durch die Merkmale des Anspruches 3 weitergebildet wird.A particularly advantageous embodiment of the invention results from the feature of claim 2, such an embodiment being further developed in a particularly advantageous manner from the features of claim 3.

Bei diesem erfindungsgemäßen Drehverschluß wird eine relativ flache Form unter anderem auch dadurch gewährleistet, daß - im Gegensatz zu der zuletzt erläuterten bekannten Ausführung - der Drehgriff lediglich eine reine Drehbewegung auszuführen braucht, d. h. der Drehgriff behält seiner relativ kleinen Bauhöhe auch dann bei, wenn er in die eine oder andere Umfangsrichtung gedreht ist.With this twist lock according to the invention, a relatively flat shape is ensured, inter alia, by the fact that - in contrast to the known embodiment explained last - the twist grip only needs to perform a pure rotary movement, i. H. the twist grip maintains its relatively small overall height even when it is turned in one or the other circumferential direction.

Weitere vorteilhafte Ausgestaltungen der Erfindung sind Gegenstand der übrigen Unteransprüche.Further advantageous embodiments of the invention are the subject of the remaining subclaims.

Die Erfindung sei im folgenden anhand der Zeichnung näher erläutert. In dieser Zeichnung zeigen

Fig. 1
eine Perspektivansicht von einem Ausführungsbeispiel eines Skischuhes, bei dem der Drehverschluß gemäß der vorliegenden Erfindung verwendet wird;
Fig. 2
eine auseinandergezogene Vertikal-Schnittansicht mit den wesentlichen Einzelteilen der Drehverschlusses;
Fig. 3
eine Querschnittsansicht durch den Drehverschluß entlang der Linie III -III in Fig.4;
Fig. 4
eine zum Teil abgedeckte und zum Teil in der Aufsicht gezeigte Grundrißansicht, etwa entsprechend der Linie IV - IV in Fig.3;
Fig. 5
eine aufgedeckte Grundrißdarstellung entsprechend der Linienführung V -V in Fig.3;
Fig 6
eine Querschnittsansicht etwa entlang der Linie VI - VI in Fig.5;
Fig. 7
eine Aufsicht auf den Verschluß in der Entriegelungsstellung des Drehgriffes und der Sperrklinke;
Fig. 8
eine Querschnittsansicht etwa entlang der Linie VIII - VIII in Fig.7, bei Darstellung der Sperrklinke in ihrer Entriegelungsstellung;
Fig. 9
eine Detail-Querschnittsansicht der Seilscheibe bei Verwendung eines Zahnradantriebes;
Fig. 10
eine Aufsicht auf die Antriebsanordnung gemäß Fig. 9;
Fig. 11
eine ähnliche Querschnittsansicht wie Fig. 3, jedoch nur mit Darstellung der im Bereich Gehäuse und Gehäusedeckel angeordneten Teile, zur Erläuterung eines weiteren Ausführungsbeispieles, bei dem die Seilscheibe durch eine Planetengetriebe antreibbar ist;
Fig. 12
eine Aufsicht etwa im Bereich der Linie XII-XII in Fig. 11 (bei abgenommenem Gehäusedeckel);
Fig. 13
eine Schnittansicht etwa entlang der Linie XIII-XIII in Fig. 11;
Fig. 14
eine ähnliche Schnittansicht wie Fig. 13, jedoch mit einer anderen Ausführungsvariante.
The invention is based on the drawing explained in more detail. Show in this drawing
Fig. 1
a perspective view of an embodiment of a ski boot in which the twist lock is used according to the present invention;
Fig. 2
an exploded vertical sectional view with the essential items of the twist lock;
Fig. 3
a cross-sectional view through the rotary lock along the line III -III in Figure 4;
Fig. 4
a partially covered and partially shown in plan view, roughly along the line IV - IV in Figure 3;
Fig. 5
a revealed plan view corresponding to the lines V -V in Figure 3;
Fig. 6
a cross-sectional view taken approximately along the line VI - VI in Figure 5;
Fig. 7
a top view of the lock in the unlocked position of the turning handle and the pawl;
Fig. 8
a cross-sectional view taken approximately along the line VIII - VIII in Figure 7, showing the pawl in its unlocked position;
Fig. 9
a detailed cross-sectional view of the pulley when using a gear drive;
Fig. 10
a plan view of the drive assembly of FIG. 9;
Fig. 11
a cross-sectional view similar to FIG 3, but only with the representation of the parts arranged in the housing and housing cover, to explain another embodiment in which the pulley can be driven by a planetary gear;
Fig. 12
a top view approximately in the area of line XII-XII in Fig. 11 (with the cover removed);
Fig. 13
a sectional view taken approximately along the line XIII-XIII in Fig. 11;
Fig. 14
a sectional view similar to FIG. 13, but with a different embodiment.

Anhand Fig.1 sei zunãchst eine Ausführungsmöglichkeit veranschaulicht, wie der erfindungsgemäße Drehverschluß 1 an einem Skischuh, insbesondere an dessen durch eine Kunststoffschale 2 gebildeten Außenschuh angebracht sein kann. Diese zu einem an sich bekannten Skischuh gehörende Kunststoffschale 2 ist im vorderen und oberen Bereich mit einer etwa schlitzartigen Öffnung 3 versehen, die das Einführen eines - nicht dargestellten - Innenschuhes in die Schale 2 sowie das Anziehen und Ausziehen des Skischuhes an sich erleichtert.1 shows an embodiment of how the twist lock 1 according to the invention can be attached to a ski boot, in particular to the outer boot formed by a plastic shell 2. This belonging to a known ski boot plastic shell 2 is provided in the front and upper area with an approximately slit-like opening 3, which facilitates the insertion of an inner shoe (not shown) into the shell 2 and the putting on and taking off of the ski boot itself.

Die Kunststoffschale 2 besitzt ferner eine die Öffnung 3 abdeckende, ebenfalls aus Kunststoff bestehende Zunge 4, die um ein im Bereich der Schuhspitze angeordnetes Gelenk 5 schwenkbar ist, so daß sie vom Hauptteil der Schale 2 weggeklappt werden kann.The plastic shell 2 also has an opening 3 covering, also made of plastic tongue 4 which is pivotable about a joint 5 arranged in the toe, so that it can be folded away from the main part of the shell 2.

Wie ferner in Fig.1 noch zu erkennen ist, enthält der Drehverschluß 1 ein auf dem durch die Kunststoffschale 2 gebildeten Schaft des Skischuhes, vorzugsweise auf der Zunge 4 befestigtes flaches Gehäuse 6, einen auf der Außenseite (Oberseite) des Gehäuses 6 angeordneten, relativ dazu drehbeweglichen Drehgriff 7 sowie zwei auf gegenüberliegenden Seiten aus dem Gehäuse 6 herausgeführte Zugseil-Spannelemente 8, 9, die in diesem Falle in Form von Seilschlingen ausgebildet sind und mit hakenartigen Elementen 10, 11 in Eingriff gebracht werden können. Diese hakenartigen Elemente 10, 11 sind auf gegenuberliegenden Schließlappen der Kunststoffschale 2 des Skischuhes befestigt. Durch eine Drehantriebsverbindung innerhalb des Gehäuses 6 kann mit Hilfe des Drehgriffes 7 eine Seilscheibe in der einen oder anderen Richtung gedreht werden, so daß durch eine entsprechende Drehbewegung des Drehgriffes 7 die wirksame Länge der Zugseil-Spannglieder 8, 9 in entgegengesetzten Richtungen im Sinne eines Lösens und Festziehens der genannten Schließlappen (über die hakenartigen Elemente 10, 11) veränderbar ist.As can also be seen in FIG. 1, the twist lock 1 contains a flat housing 6, which is fastened on the upper of the ski boot, which is formed by the plastic shell 2, preferably on the tongue 4, and a housing 6 arranged on the outside (top) of the housing for this purpose, rotatable rotary handle 7 and two pulling cable tensioning elements 8, 9, which are led out on opposite sides of the housing 6 and in this case are designed in the form of rope loops and with hook-like elements 10, 11 can be engaged. These hook-like elements 10, 11 are fastened on opposite closing flaps of the plastic shell 2 of the ski boot. By means of a rotary drive connection within the housing 6, a pulley can be rotated in one direction or the other with the help of the rotary handle 7, so that the effective length of the pull cord tension members 8, 9 in opposite directions in the sense of loosening by a corresponding rotary movement of the rotary handle 7 and tightening said closing flap (via the hook-like elements 10, 11) can be changed.

Bei dem in Fig.1 dargestellten Ausführungsbeispiel ist die Zunge 4 in der Höhe des Drehverschlusses 1 mit zwei seitlichen Fortsetzungen 4a, 4b versehen, die zur Abdeckung der beiden Zugseil-Spannelemente 8 bzw. 9 dienen.In the embodiment shown in Figure 1, the tongue 4 is provided at the height of the twist lock 1 with two lateral extensions 4a, 4b, which serve to cover the two tension cable tensioning elements 8 and 9 respectively.

Die Ausbildung der wesentlichen Einzelteile des Drehverschlusses 1 läßt sich vor allem in der auseinandergezogenen Vertikalschnittansicht in Fig.2 erkennen, während weitere Einzelheiten dieser Teile sowie deren Funktionsanordnung vor allem in den Fig.3 bis 6 veranschaulicht sind.The formation of the essential individual parts of the twist lock 1 can be seen above all in the exploded vertical sectional view in FIG. 2, while further details of these parts and their functional arrangement are illustrated above all in FIGS. 3 to 6.

Nach der Darstellung in Fig.2 besitzt das relativ flache Gehäuse 6 des Drehverschlusses 1 eine relativ große, in der Aufsicht (vgl. Fig.4) kreisförmige Ausdrehung 12, die in Durchmesser und Tiefe genau für die Aufnahme einer Seilscheibe 13 angepaßt ist. In diese Ausdrehung 12 münden an etwa diametral gegenüberliegenden Stellen Führungskanäle 14, 15, durch die die entsprechenden Enden 8a, 9a der Zugseil-Spannelemente 8, 9 auf gegenüberliegenden Seiten aus dem Gehäuse 6 herausgeführt sind. Die innerhalb dieses Gehäuses 6 befindlichen Spannelementenden 8a bzw. 9a sind - wie in Fig.4 angedeutet -etwa diametral gegenüberliegend an der Seilscheibe 13 (beispielsweise - wie an sich bekannt - mittels Nippel) festgelegt, so daß sie bei einer entsprechenden Drehbewegung der Seilscheibe 13 in der einen oder anderen Richtung in einer Umfangsnut 16 geführt werden und dort auf- bzw. abgewickelt werden können.According to the illustration in FIG. 2, the relatively flat housing 6 of the twist lock 1 has a relatively large, in the top view (see FIG. 4) circular recess 12 that is accurate in diameter and depth is adapted for receiving a pulley 13. Guide channels 14, 15 open into this recess 12 at approximately diametrically opposite points, through which the corresponding ends 8a, 9a of the tension cable tensioning elements 8, 9 are led out of the housing 6 on opposite sides. The clamping element ends 8a and 9a located within this housing 6 are - as indicated in FIG. 4 - fixed approximately diametrically opposite on the sheave 13 (for example - as known per se - by means of nipples), so that they are in response to a corresponding rotational movement of the sheave 13 are guided in one or the other direction in a circumferential groove 16 and can be wound up or unwound there.

Die Seilscheibe 13 ist in diesem Ausführungsbeispiel an ihrer Oberseite in Form einer Malteserkreuzscheibe mit am Umfang verteilten radialen Führungsnuten 17 als Antriebselemente versehen.In this exemplary embodiment, the rope pulley 13 is provided on its upper side in the form of a Maltese cross disk with radial guide grooves 17 distributed around the circumference as drive elements.

Koaxial zur geometrischen vertikalen Hauptachse 1a des Drehverschlusses 1 ist etwas oberhalb der Seilscheibe 13 eine Antriebsscheibe 18 ebenfalls im wesentlichen im Gehäuse 6 angeordnet. In dem hier veranschaulichten Beispiel ist diese Antriebsscheibe 18 ebenfalls im wesentlichen im Gehäuse 6 angeordnet und als Treiberscheibe mit zwei außermittig angeordneten Antriebszapfen 19 ausgebildet, die einander etwa diametral gegenüberliegen und von der Unterseite der Antriebsscheibe 18 nach unten gegen die Seilscheibe 13 vorstehen. Durch eine entsprechende Anordnung und Lagerung dieser Antriebsscheibe 18 im Gehäuse 6 ergibt sich in der Zusammenordnung mit der Seilscheibe 13 eine Art Malteserkreuzgetriebe, durch das - wie am besten aus Fig.4 zu ersehen ist - bei einer Drehbewegung der Antriebsscheibe 18 in Richtung des Pfeiles 20 die Antriebszapfen 19 nacheinander mit in Umfangsrichtung aufeinanderfolgenden Führungsnuten 17 der als Malteserkreuzscheibe ausgebildeten Seilscheibe 13 in Eingriff kommen und dadurch die Seilscheibe in Richtung des Pfeiles 21 antreiben, wenn die Zugseil-Spannelemente 8, 9 mit ihren Enden 8a bzw. 9a auf der Seilscheibe 13 aufgewickelt werden sollen (im Sinne eines Festziehens der Schuhschließlappen); eine umgekehrte Drehbewegung bewirkt ein Abwickeln der Zugseil-Spannelemente 8, 9 (im Sinne eines Lösens der Schuhschließlappen).Coaxially to the geometrical vertical main axis 1a of the twist lock 1, a drive pulley 18 is likewise arranged essentially in the housing 6 somewhat above the cable pulley 13. In the example illustrated here, this drive disk 18 is likewise essentially arranged in the housing 6 and is designed as a drive disk with two drive pins 19 arranged off-center, which are approximately diametrically opposed to one another protrude downward from the underside of the drive pulley 18 against the pulley 13. Appropriate arrangement and mounting of this drive pulley 18 in the housing 6 results in the arrangement with the pulley 13 a type of Maltese cross gear, by which - as can best be seen from FIG. 4 - when the drive pulley 18 rotates in the direction of the arrow 20 the drive pins 19 one after the other come into engagement with successive circumferential guide grooves 17 of the rope pulley 13 designed as a Maltese cross disk and thereby drive the rope pulley in the direction of the arrow 21 when the pull rope tensioning elements 8, 9 are wound with their ends 8a or 9a on the rope pulley 13 should be (in the sense of tightening the shoe closing flap); a reverse rotation causes the tension cable elements 8, 9 to unwind (in the sense of loosening the shoe closing flap).

Das Gehäuse 6 ist oben durch einen Deckel 22 abgedeckt, der an seiner Unterseite parallel zur vertikalen Hauptachse 1a verlaufende Befestigungszapfen 23, 23a aufweist, von denen der eine Befestigungszapfen 23a gleichzeitig einen Drehlagerzapfen für die Führung und Lagerung der Seilscheibe 13 bildet (vgl. auch Fig.3). Diese Befestigungszapfen 23, 23a besitzen vorzugsweise Gewindebohrungen 23ʹ bzw. 23aʹ, in die vom Gehäuseboden 6a aus eingeführte Schrauben 24 eingeschraubt sind, so daß dadurch der Gehäusedeckel 22 über die Befestigungszapfen 23, 23a lösbar mit dem Gehäuseboden 6a verbunden ist. Während in der Zeichnung lediglich zwei Befestigungszapfen 23, 23a veranschaulicht sind, versteht es sich von selbst, daß über den Umfang des Gehäusedeckels 22 verteilt auch mehr als zwei solcher Befestigungszapfen vorgesehen sein können.The housing 6 is covered at the top by a cover 22, which on its underside has fastening pins 23, 23a running parallel to the vertical main axis 1a, of which the one fastening pin 23a simultaneously forms a pivot bearing pin for guiding and mounting the rope pulley 13 (cf. also FIG .3). These mounting pins 23, 23a preferably have threaded bores 23ʹ or 23aʹ, into which screws 24 inserted from the housing base 6a are screwed, so that the housing cover thereby 22 is detachably connected to the housing base 6a via the fastening pins 23, 23a. While only two fastening pins 23, 23a are illustrated in the drawing, it goes without saying that more than two such fastening pins can also be provided distributed over the circumference of the housing cover 22.

Koaxial zur vertikalen Hauptachse 1a des Drehverschlusses 1 weist der Gehäusedeckel 22 eine Ausdrehung 25 zur Aufnahme der Antriebsscheibe 18 sowie eine zylindrische Lagerbohrung 26 auf, in der das untere, zylindrisch ausgebildete Ende 27a eines nach oben vorstehenden Zapfens 27 der Antriebsscheibe 18 zentrisch gelagert und geführt ist. Das obere Ende 27b dieses Zapfens 27 ragt über die Lagerbohrung 26 hinaus nach oben und ist mit einem Außenvierkant versehen (vgl. auch Fig.4, linke Hälfte), wobei außerdem zentral in diesem Zapfen 27 eine Gewindebohrung 27c vorgesehen ist.Coaxial to the vertical main axis 1a of the rotary closure 1, the housing cover 22 has a recess 25 for receiving the drive disk 18 and a cylindrical bearing bore 26 in which the lower, cylindrical end 27a of an upwardly projecting pin 27 of the drive disk 18 is centrally supported and guided . The upper end 27b of this pin 27 projects upward beyond the bearing bore 26 and is provided with an external square (see also FIG. 4, left half), a threaded bore 27c also being provided centrally in this pin 27.

In die Oberseite des Gehäusedeckels 22 ist ein Zahnring 28 mit einer Vielzahl von Eingriffszähnen 29 eingearbeitet, der Teil einer noch näher zu erläuternden Sperrklinkeneinrichtung ist (vgl. auch Fig.5 und 6). Dieser Zahnring 28 weist im vorliegenden Falle zwölf gleichmäßig über den Umfang verteilte Eingriffszähne 29 auf; diese Anzahl der Eingriffszähne 29 kann der jeweils gewünschten Feineinstellung des Drehverschlusses 1 angepaßt werden.A toothed ring 28 with a plurality of engagement teeth 29 is incorporated into the top of the housing cover 22 and is part of a pawl device to be explained in more detail (see also FIGS. 5 and 6). In the present case, this toothed ring 28 has twelve engagement teeth 29 evenly distributed over the circumference; this number of engagement teeth 29 can be adapted to the respectively desired fine adjustment of the twist lock 1.

Teil der genannten Sperrklinkeneinrichtung ist auch eine Sperrklinke 30, die nach Art eines zweiarmigen Hebels ausgebildet und über eine Schwenkachse 31 schwenkbar in einer angepaßten, im Bereich über dem Zahnring 28 liegenden Durchgangsausnehmung 32 einer Zwischenscheibe 33 schwenkbar gehaltert ist (vgl. hierzu auch die Fig.3, 5 und 6). Die Sperrklinke 30 weist einen unteren Vorsprungszahn 30a (an seinem einen Hebelarm) und einen oberen Vorsprungszahn 30b (an seinem anderen Hebelarm) auf. Mit dem unteren Vorsprungszahn 30a kann die Sperrklinke 30 in die Zähne 29 des Zahnringes 28 eingreifen (wie in Fig.3 und 6 dargestellt), während der obere Vorsprungszahn 30b der Sperrklinke 30 in eine in die Unterseite des Drehgriffes 7 eingearbeitete, etwa ringsektorförmige Steuerausnehmung 34 vorsteht, die -wie sich insbesondere aus Fig.6 ersehen läßt - an ihrem einen Ende eine rampenartig ansteigende Steuerfläche 34a aufweist, die mit einer entsprechenden Gegenfläche des oberen Vorsprungszahnes 30b der Sperrklinke 30 in Eingriff bringbar ist und deren Bedeutung später noch näher erläutert wird.Part of the mentioned pawl device is also a pawl 30, which is designed in the manner of a two-armed lever and is pivotably supported via a pivot axis 31 in a matched passage recess 32 of an intermediate disk 33 located in the area above the toothed ring 28 (cf. also FIG. 3, 5 and 6). The pawl 30 has a lower projecting tooth 30a (on one lever arm) and an upper projecting tooth 30b (on its other lever arm). The pawl 30 can engage the teeth 29 of the toothed ring 28 with the lower projecting tooth 30a (as shown in FIGS. 3 and 6), while the upper projecting tooth 30b of the pawl 30 engages in an approximately annular sector-shaped control recess 34 machined into the underside of the rotary handle 7 protrudes, which - as can be seen in particular from FIG. 6 - has at one end a ramp-like control surface 34a which can be brought into engagement with a corresponding counter surface of the upper projection tooth 30b of the pawl 30 and the meaning of which will be explained in more detail later.

Die zwischen dem Drehgriff 7 und dem Gehäusedeckel 22 angeordnete Zwischenscheibe 33 ist mit einer unteren zylindrischen, zentralen Aussparung 33a auf einem zentralen, zylindrischen Lagervorsprung 22a an der Oberseite des Gehäusedeckels 22 frei drehbar gelagert und geführt. Sie weist ferner eine zentral zur Hauptachse 1a liegende Vierkant-Durchgangsöffnung 35 auf, in die das mit Außenvierkant versehene obere Ende 27b des Antriebsscheiben-Zapfens 27 eingreift, so daß eine drehfeste Verbindung zwischen der Antriebsscheibe 18 und der Zwischenscheibe 33 gebildet ist.The intermediate disc 33 arranged between the rotary handle 7 and the housing cover 22 is freely rotatably supported and guided with a lower cylindrical, central recess 33a on a central, cylindrical bearing projection 22a on the upper side of the housing cover 22. It also has a square through opening located centrally to the main axis 1a 35, into which the upper square 27b of the drive pulley pin 27 engages, so that a rotationally fixed connection between the drive pulley 18 and the intermediate pulley 33 is formed.

Die Sperrklinke 30 ist vorzugsweise - wie in den Fig.2, 5 und 6 veranschaulicht - mit Hilfe von zwei zu beiden Seiten angeordneten Lagersteinen 36 von oben her in die Durchgangsausnehmung 32 im Zwischenring 33 eingesetzt und festgelegt. In diese Lagersteine 36 ragen auch die Enden der Schwenkachse 31 hinein, wobei im Bereich zwischen dem einen Lagerstein 36 und der Sperrklinke 30 eine Schraubenfeder 37 auf der Schwenkachse 31 derart angeordnet und mit Sperrklinke 30 und Lagerstein 36 derart verbunden ist, daß die Sperrklinke 30 mit ihrem unteren Vorsprungszahn 30a in Richtung auf die Eingriffszähne 29 des Zahnringes 28 federnd vorgespannt ist. Der mit einer deckelartigen Verbreiterung 7a versehene Drehgriff 7 deckt die Zwischenscheibe 33 oben ab, wobei ein von der Oberseite der Zwischenscheibe 33 vorstehender, zentraler, zylindrischer Lagervorsprung 33b in eine zentrale, ebenfalls zylindrische Aussparung 7b an der Unterseite des Drehgriffes 7 zwecks dessen Führung und Lagerung eingreift. Koaxial zur vertikalen Hauptachse 1a des Drehverschlusses 1 ist im Drehgriff 7 eine zentrale, abgesetzte Bohrung 38 vorgesehen, durch die eine Bundschraube 39 derart eingesetzt werden kann, daß ihr unteres Gewindeende 39a in die Gewindebohrung 27c des Antriebsscheiben-Zapfens 27 eingeschraubt werden kann, um die insbesondere in Fig.3 dargestellte Zusammenordnung des Drehverschlusses 1 zu schaffen. Die Bundschraube 39 kann dabei in Form einer Imbusschraube ausgebildet und vollkommen in der Bohrung 38 versenkt sein.The pawl 30 is preferably - as illustrated in FIGS. 2, 5 and 6 - inserted and fixed from above into the through recess 32 in the intermediate ring 33 with the aid of two bearing stones 36 arranged on both sides. The ends of the pivot axis 31 also protrude into these bearing blocks 36, a coil spring 37 being arranged on the pivot axis 31 in the region between the one bearing block 36 and the pawl 30 and connected to the pawl 30 and bearing block 36 in such a way that the pawl 30 with its lower projection tooth 30a is resiliently biased in the direction of the engagement teeth 29 of the toothed ring 28. The rotary handle 7 provided with a lid-like widening 7a covers the intermediate disk 33 at the top, with a central, cylindrical bearing projection 33b protruding from the upper side of the intermediate disk 33 into a central, likewise cylindrical recess 7b on the underside of the rotary handle 7 for the purpose of guiding and storing it intervenes. Coaxial to the vertical main axis 1 a of the twist lock 1, a central, stepped bore 38 is provided in the twist grip 7, through which a collar screw 39 can be inserted such that its lower one Threaded end 39a can be screwed into the threaded bore 27c of the drive disk pin 27 in order to create the arrangement of the rotary closure 1 shown in particular in FIG. The collar screw 39 can be designed in the form of an Allen screw and completely countersunk in the bore 38.

Bei dieser Ausführung des Drehverschlusses 1 ist ferner von Bedeutung, daß der Drehgriff 7 unter Schaffung eines Leerweges LW (Fig.4 und 7) begrenzt relativ drehbeweglich auf der Oberseite der Zwischenscheibe 33 gelagert und geführt ist. Zur Erzielung dieses Leerweges LW weist einerseits der Drehgriff 7 an seiner Unterseite (im vorliegenden Beispiel vorzugsweise etwa der Steuerausnehmung 34 diametral gegenüberliegend)einen nach unten vorstehenden Mitnehmerzapfen 40 auf, der in eine etwa ringsektorförmige Ausnehmung 41 eingreift, die von der Oberseite her in die Zwischenscheibe 33 eingearbeitet ist, im vorliegenden Falle sich in Umfangsrichtung über einen Winkelbereich von etwa 30° erstreckt und mit ihren in Umfangsrichtung weisenden Enden Anschlagenden 41a, 41b bildet. Diese Anschlagenden 41a, 41b begrenzen, wenn sie in der einen oder anderen Drehrichtung des Drehgriffes 7 mit dem Mitnehmerzapfen 40 in Anlage kommen, den Leerweg LW dieses Drehgriffes 7. Dies bedeutet, daß durch die Zusammenordnung von Drehgriff 7 und Zwischenscheibe 33 der Drehgriff 7 bei seiner Drehbewegung in der einen oder anderen Richtung (Pfeil 20 in Fig.4) entsprechend der Länge des Leerweges LW begrenzt relativ frei drehbar auf und gegenüber der Zwischenscheibe 33 drehbar gelagert und geführt ist. Die Länge dieses Leerweges LW ist abgestimt auf die Umfangslänge der Steuerausnehmung 34, in die der obere Vorsprungszahn 30b der Sperrklinke 30 als eine Art Steuervorsprung eingreift. Wenn dementsprechend der Drehgriff 7 - entsprechend Pfeil 20 in Fig.4 - in Richtung der Festzieh-Drehbewegung des Drehverschlusses 1 gedreht wird, dann bewegt sich dieser Drehgriff 7 zunächst alleine bzw. frei relativ zur Mitnehmerscheibe 33 so weit, bis sein Mitnehmerzapfen 40 mit dem entsprechenden Anschlagende 41a der Ausnehmung 41 in Eingriff kommt. Hierdurch gelangt der obere Vorsprungszahn 30b der Sperrklinke 30 durch die Wirkung der Federvorspannung vollkommen in die Steuerausnehmung 34 (wie in den Fig.3 und 5 veranschaulicht ist), während gleichzeitig der untere Vorsprungszahn 30a der Sperrklinke mit den Eingriffszähnen 29 des Zahnringes 28 federnd in Eingriff gedrückt wird. Bei einer weiteren Festzieh-Drehbewegung in Richtung des Pfeiles 20 in Fig.4 wird über das Malteserkreuzgetriebe die Seilscheibe 13 in Richtung des Pfeiles 21 gedreht, so daß die entsprechenden Enden 8a und 9a der Zugseil-Spannelemente 8, 9 auf dieser Seilscheibe 13 aufgewickelt und somit die Schuhschließlappen festgezogen werden. Hierbei kommt die Sperrklinke 30 nacheinander mit den Umfangsrichtung verteilten Zähnen 29 des Zahnringes 28 in Eingriff. Nach Beendigung der Festzieh-Drehbewegung durch den Drehgriff 7 wird die dann erreichte Dreheinstellung des Drehverschlusses 1 in der Festziehlage durch die Klinkeneingriffsstellung verriegelt. Auf diese Weise kann der zugehörige Skischuh äußerst feinfühlig und millimetergenau geschlossen werden. Wenn dann der Drehverschluß 1 gelöst werden soll, um den Skischuh wieder zu öffnen, dann wird der Drehgriff 7 - entgegen Pfeil 20 in Fig.4 - in Richtung der Löse-Drehbewegung zurückgedreht, wodurch der Drehgriff 7 entsprechend dem Leerweg LW zunächst wieder allein und frei drehbeweglich relativ zur Zwischenscheibe 33 dreht, bis sein Mitnehmerzapfen 40 die entgegengesetzte Leerweg-Endstellung am Anschlagende 41b in der Ausnehmung 41 erreicht hat, wie es in Fig.7 veranschaulicht ist. In dieser Leerweg-Endstellung hat sich gleichzeitig die rampenartig ansteigende Steuerfläche 34a über die ihm zugewandte Fläche des oberen Vorsprungszahnes 30b der Sperrklinke 30 geschoben, so daß dadurch - entgegen der Federvorspannung - der untere Vorsprungszahn 30a der Sperrklinke 30 von den Eingriffszähnen 29 des Zahnringes 28 außer Eingriff gebracht worden ist. Auf diese Weise ist die Sperrklinke 30 in ihre Entriegelungsstellung gebracht worden und wird darin solange gehalten, wie der Drehgriff 7 in Richtung der Löse-Drehbewegung gedreht bzw. der Mitnehmerzapfen 40 dieses Drehgriffes 7 in der in Fig.7 dargestellten Leerweg-Endstellung gehalten wird. Die so entriegelte Sperrklinkeneinrichtung gestattet damit ein problemloses Betätigen des Malteserkreuzgetriebes in der Weise, daß die Seilscheibe 13 entgegen dem Pfeil 21 in Fig.4 gedreht und dadurch die Zugseil-Spannelementenden 8a und 9a von dieser Seilscheibe 13 wieder abgewickelt werden können, um die Skischuh-Schließlappen zu lösen bzw. zu öffnen.In this embodiment of the twist lock 1, it is also important that the twist grip 7 is limitedly rotatably supported and guided on the upper side of the intermediate disk 33 to create an empty travel LW (FIGS. 4 and 7). To achieve this free travel LW, on the one hand, the rotary handle 7 has on its underside (in the present example preferably approximately diametrically opposite the control recess 34) a downwardly projecting driver pin 40, which engages in an approximately annular sector-shaped recess 41 which, from the top, into the intermediate disk 33 is incorporated, in the present case extends in the circumferential direction over an angular range of approximately 30 ° and forms stop ends 41a, 41b with their ends pointing in the circumferential direction. These stop ends 41a, 41b limit, when they come into contact with the driving pin 40 in one or the other direction of rotation of the rotary handle 7, the free travel LW of this rotary handle 7. This means that the rotary handle 7 by the combination of rotary handle 7 and intermediate washer 33 its rotary motion in one or other direction (arrow 20 in FIG. 4) corresponding to the length of the free travel LW is relatively freely rotatable and is rotatably supported and guided relative to the intermediate disk 33. The length of this free travel LW is matched to the circumferential length of the control recess 34, in which the upper projection tooth 30b of the pawl 30 engages as a kind of control projection. Accordingly, if the rotary handle 7 - according to arrow 20 in FIG. 4 - is rotated in the direction of the tightening rotary movement of the rotary closure 1, then this rotary handle 7 first moves alone or freely relative to the drive plate 33 until its drive pin 40 with the corresponding stop end 41a of the recess 41 comes into engagement. As a result, the upper projecting tooth 30b of the pawl 30 comes completely into the control recess 34 (as illustrated in FIGS. 3 and 5) by the action of the spring preload, while at the same time the lower projecting tooth 30a of the pawl resiliently engages with the engagement teeth 29 of the toothed ring 28 is pressed. With a further tightening rotary movement in the direction of arrow 20 in FIG. 4, the pulley 13 is rotated in the direction of arrow 21 via the Maltese cross gear, so that the corresponding ends 8a and 9a of the traction cable tensioning elements 8, 9 are wound on this pulley 13 and thus the shoe closing flaps are tightened. Here, the pawl 30 comes successively with the circumferentially distributed teeth 29 of the toothed ring 28 engaged. After completion of the tightening rotary movement by means of the rotary handle 7, the rotary setting of the rotary closure 1 which is then achieved is locked in the tightened position by the pawl engagement position. In this way, the associated ski boot can be closed extremely sensitively and with millimeter precision. If the twist lock 1 is then to be released in order to open the ski boot again, then the twist grip 7 - against the arrow 20 in FIG. 4 - is turned back in the direction of the loosening-rotational movement, whereby the twist grip 7 is again alone and according to the free travel LW freely rotatable relative to the intermediate disk 33 until its driver pin 40 has reached the opposite free travel end position at the stop end 41b in the recess 41, as illustrated in FIG. In this free travel end position, the ramp-like control surface 34a has at the same time pushed over the surface of the upper projection tooth 30b of the pawl 30 facing it, so that - contrary to the spring preload - the lower projection tooth 30a of the pawl 30 has been removed from the engagement teeth 29 of the toothed ring 28 Intervention has been brought. In this way, the pawl 30 has been brought into its unlocked position and is held therein for as long as the rotary handle 7 is rotated in the direction of the release rotary movement or the driver pin 40 of this rotary handle 7 is held in the free travel end position shown in FIG. The so unlocked Pawl device thus allows trouble-free actuation of the Maltese cross gear in such a way that the rope pulley 13 is rotated counter to the arrow 21 in FIG or open.

Im vorstehend beschriebenen Ausführungsbeispiel wird die Drehbewegung des Drehgriffes 7 mit Hilfe eines Malteserkreuzgetriebes (Treiberscheibe 18 und in Form einer Malteserkreuzscheibe ausgebildete Seilscheibe 13) auf die Seilscheibe 13 übertragen, wodurch ein stufenweises bzw. absatzweises Festziehen der Zugseil-Spannelemente 8, 9 herbeigeführt wird. Anstelle eines solchen Malteserkreuzgetriebes kann jedoch auch ein Zahnradantrieb die Drehbewegung des Drehgriffes 7 auf die Seilscheibe 13 übertragen, wodurch ein im wesentlichen kontinuierliches Festziehen der Zugseil-Spannelemente 8, 9 ermöglicht werden kann.In the exemplary embodiment described above, the rotary movement of the rotary handle 7 is transmitted to the cable pulley 13 with the aid of a Maltese cross gear (drive pulley 18 and a cable pulley 13 designed in the form of a Maltese cross pulley), as a result of which the traction cable tensioning elements 8, 9 are tightened in stages or in stages. Instead of such a Maltese cross gear, however, a gear drive can transmit the rotary movement of the rotary handle 7 to the pulley 13, whereby an essentially continuous tightening of the traction cable tensioning elements 8, 9 can be made possible.

Detailansichten eines Ausführungsbeispieles eines Zahnradantriebes sind in den Fig.9 und 10 veranschaulicht. Die Seilscheibe 13 selbst kann dabei wiederum im wesentlichen gleichartig ausgeführt und gelagert sein, wie es oben beschrieben ist. An ihrer Oberseite ist in diesem Falle jedoch -koaxial zu ihr - ein etwa scheibenförmiges Zahnrad 50 befestigt (beispielsweise - wie angedeutet -verstiftet) mit am Außenumfangsrand vorgesehenen Zähnen 51. Mit diesem Zahnrad 50 steht eine Antriebsscheibe 18ʹ in Antriebsverbindung, wobei diese Antriebsscheibe 18ʹ über ihren nach oben vorstehenden Zapfen 27ʹ in gleicher Weise mit den übrigen Teilen des Drehverschlusses zusammengeordnet sein kann, wie die Antriebsscheibe 18 im vorhergehenden Beispiel. Der einzige Unterschied dieser Antriebsscheibe 18ʹ zur Antriebsscheibe 18 ist darin zu sehen, daß sie an ihrem Umfangsrand eine geeignete Anzahl von Antriebszähnen 52 aufweist, die mit den Zähnen 51 des Zahnrades 50 in Eingriff stehen. Auf diese Weise bildet die Antriebsscheibe 18ʹ eine Art Antriebszahnritzel für das Zahnrad 50 der Seilscheibe 13.Detailed views of an exemplary embodiment of a gear drive are illustrated in FIGS. 9 and 10. The sheave 13 itself can in turn be embodied and mounted essentially in the same way as described above. In this case, however, an approximately disk-shaped gear wheel 50 is fastened (coaxially to it) to its upper side (for example — as indicated — pinned) with teeth 51 provided on the outer circumferential edge. A drive pulley 18ʹ is in drive connection with this gearwheel 50, said drive pulley 18ʹ being able to be arranged in the same way with the remaining parts of the rotary closure via its upwardly projecting pin 27ʹ as the drive pulley 18 in the previous example. The only difference between this drive pulley 18ʹ and the drive pulley 18 is the fact that it has a suitable number of drive teeth 52 on its peripheral edge, which mesh with the teeth 51 of the gear 50. In this way, the drive pulley 18ʹ forms a type of drive pinion for the gear 50 of the pulley 13.

Auch bei Verwendung dieses Zahnradantriebes gemäß Fig.9 und 10 sorgt die oben erläuterte Sperrklinkeneinrichtung für eine zuverlässige Verriegelung und Entriegelung der Verschlußstellungen.Even when using this gear drive according to FIGS. 9 and 10, the pawl device explained above ensures reliable locking and unlocking of the locking positions.

Bei den vorhergehend beschriebenen Ausführungsbeispielen ist zwischen der Zwischenscheibe und der Seilscheibe, d. h. als Antrieb für diese Seilscheibe einmal ein Malteserkreuzgetriebe (Fig. 2 bis 8) und zum anderen ein einfaches Stirnradgetriebe (Fig. 9 und 10) vorgesehen. Gemäß einer weiteren vorteilhaften Ausgestaltung der Erfindung besteht eine weitere Möglichkeit zum Antrieb der Seilscheibe darin, daß zwischen der Zwischenscheibe und der Seilscheibe ein Planetengetriebe vorgesehen wird. Ein solches Ausführungsbeispiel sei nachfolgend insbesondere anhand der Fig. 11 und 12 beschrieben. Dazu sei zunächst erwähnt, daß insbesondere in Fig. 11 der Einfachheit halber nur die im Bereich des flachen Gehäuses und des Gehäusedeckels angeordneten Drehverschlußteile veranschaulicht sind, während die darüberliegenden Teile mit dem Drehgriff und der Sperrklinke weggelassen worden sind, da diese Teile praktisch gleichartig ausgeführt sein können und in gleicher Weise funktionieren, wie es zuvor insbesondere anhand der Fig. 2 bis 8 ausführlich beschrieben worden ist. Ferner sind in diesen Fig. 11 und 12 die Teile, die zumindest annähernd gleichartig sind zu Teilen des Ausführungsbeispieles gemäß den Fig. 1 bis 8 mit denselben Bezugszeichen wie dort, jedoch unter Hinzufügung eines Doppelstriches bezeichnet.In the exemplary embodiments described above, a Maltese cross gear (FIGS. 2 to 8) and, on the other hand, a simple spur gear (FIGS. 9 and 10) are provided between the washer and the pulley, ie, as the drive for this pulley. According to a further advantageous embodiment of the invention, a further possibility for driving the rope pulley is that a planetary gear is provided between the intermediate disk and the rope pulley becomes. Such an embodiment is described below in particular with reference to FIGS. 11 and 12. For this purpose, it should first be mentioned that, in particular for the sake of simplicity, only the twist lock parts arranged in the area of the flat housing and the housing cover are illustrated, while the parts above them have been omitted with the twist grip and the pawl, since these parts are of practically the same design can and work in the same manner as has been described in detail above, in particular with reference to FIGS. 2 to 8. Furthermore, in these FIGS. 11 and 12, the parts that are at least approximately similar to parts of the exemplary embodiment according to FIGS. 1 to 8 are denoted by the same reference numerals as there, but with the addition of a double line.

Der hier interessierende Gesamtaufbau dieses weiteren Ausführungsbeispieles sei zunächst anhand Fig. 11 erläutert. Danach enthält der Drehverschluß dieses Beispieles wiederum ein flaches, auf dem Schaft eines Skischuhs zu befestigendes Gehäuse 6ʺ, auf dem oben ein Gehäusedeckel 22ʺ lösbar befestigt ist, was beispielsweise durch nur strichpunktiert angedeutete , über den Umfang verteilte Schrauben 53 geschehen kann.The overall structure of this further exemplary embodiment that is of interest here is first explained with reference to FIG. 11. Then the twist lock of this example in turn contains a flat housing 6ʺ to be fastened on the shaft of a ski boot, on which a housing cover 22 ist is detachably fastened at the top, which can be done, for example, by means of screws 53, which are indicated by dash-dotted lines and distributed over the circumference.

Es sei an dieser Stelle gleich auf eine besondere Ausführungsmöglichkeit des Gehäusedeckels 22ʺ hingewiesen. Dieser Gehäusedeckel 22ʺ kann einen nach oben vorstehenden, ringförmigen Umfangsrand 54 aufweisen, der eine nach oben offene, zylindrische Ausnehmung 55 begrenzt, in der die nur strichpunktiert angedeutete Zwischenscheibe 33ʺ in Durchmesser und Höhe passend sowie frei drehbar aufgenommen ist.At this point it should be pointed out to a special embodiment of the housing cover 22ʺ. This housing cover 22ʺ can have upwardly projecting, annular peripheral edge 54, which delimits an upwardly open, cylindrical recess 55, in which the intermediate disc 33ʺ, indicated only by dash-dotted lines, is accommodated in terms of diameter and height, and is freely rotatable.

Die Seilscheibe 13ʺ ist in diesem Falle zwar ebenfalls in einer in Durchmesser und Tiefe genau angepaßten Ausdrehung 12ʺ (wie im ersten Ausführungsbeispiel) frei drehbar aufgenommen und angeordnet, jedoch ist diese Ausdrehung 12ʺ zentral in dem im wesentlichen zylindrischen Gehäuse 6ʺ vorgesehen. Dementsprechend ist die Seilscheibe 13ʺ über einen von ihrer Unterseite nach unten vorstehenden Lagervorsprung 13ʺa zentral im flachen Gehäuse 6ʺ gelagert, indem dieser Lagervorsprung 13ʺa in einer zentralen Bohrung 56 des Gehäusebodens 6aʺ passend und frei drehbar aufgenommen ist.In this case, the rope pulley 13 Falle is likewise rotatably received and arranged in a recess 12ʺ (as in the first exemplary embodiment) which is precisely adapted in diameter and depth, but this recess 12ʺ is provided centrally in the essentially cylindrical housing 6ʺ. Correspondingly, the rope pulley 13ʺ is mounted centrally in the flat housing 6 Lag via a bearing projection 13ʺa projecting downward from its underside, in that this bearing projection 13ʺa is accommodated in a central bore 56 of the housing base 6aʺ in a suitable and freely rotatable manner.

Wie bereits weiter oben erwähnt worden ist, befindet sich in diesem Falle zwischen der Zwischenscheibe 33ʺ und der Seilscheibe 13ʺ ein Planetengetriebe zum Antrieb der Seilscheibe 13ʺ. Dazu ist die Antriebsscheibe für die Seilscheibe in Form eines Antriebssonnenrades 18ʺ ausgebildet und zentral in einem innenverzahnten Zahnkranz 57 angeordnet, der die Seilscheibe 13ʺ im Bereich ihrer Oberseite umgibt und drehfest von dem flachen Gehäuse 6ʺ getragen wird. Mit diesem Antriebssonnenrad 18ʺ einerseits und dem innenverzahnten Zahnkranz 57 andererseits steht wenigstens ein Planetenrad 58 in Verzahnungseingriff; im vorliegenden Falle sind - wie sich insbesondere aus Fig. 12 ergibt - vorzugsweise drei solcher Planetenräder 58 in gleichmäßiger Umfangsverteilung innerhalb des Zahnkranzes 57 vorgesehen. Diese in Form von kleinen Zahnritzeln ausgebildeten Planetenräder 58 sind auf der Oberseite der Seilscheibe 13ʺ frei drehbar gelagert, indem sie auf zugehörigen, oben vorstehenden, zylindrischen Lagerzapfen frei drehbar und lose aufgesteckt sind.As has already been mentioned above, in this case there is a planetary gear between the intermediate disk 33ʺ and the pulley 13ʺ for driving the pulley 13ʺ. For this purpose, the drive pulley for the cable pulley is designed in the form of a drive sun gear 18ʺ and is arranged centrally in an internally toothed ring gear 57 which surrounds the cable pulley 13ʺ in the region of its upper side and is rotatably supported by the flat housing 6ʺ. With this drive sun gear 18ʺ on the one hand and the internally toothed ring gear 57 on the other hand, there is at least one Planet gear 58 in meshing engagement; in the present case - as can be seen in particular from FIG. 12 - three such planet gears 58 are preferably provided in a uniform circumferential distribution within the ring gear 57. These in the form of small pinions pinion gears 58 are freely rotatably mounted on the top of the pulley 13 by being freely rotatable and loosely attached to the associated cylindrical bearing journals projecting above.

Die Seilscheibe 13ʺ weist eine vorzugsweise durchgehende zentrale Führungsbohrung 60 auf, in der ein vom Antriebssonnenrad 18ʺ zentral nach unten ragenden Führungszapfen 61 frei drehbar geführt und gelagert ist.The rope pulley 13 'has a preferably continuous central guide bore 60 in which a guide pin 61 projecting centrally downward from the drive sun gear 18' is freely rotatably guided and supported.

Von der entgegengesetzten Seite des Antriebssonnenrades 18ʺ steht wiederum - gleichartig wie beim ersten Ausführungsbeispiel - ein ebenfalls fest damit verbundener Zapfen 27ʺ zentral nach oben vor, der ein unteres, zylindrisch ausgebildetes Ende 27aʺ und ein daran nach oben anschließendes oberes Ende 27bʺ aufweist, das mit einem Außenvierkant versehen ist. Während - wiederum im wesentlichen gleichartig wie beim ersten Ausführungsbeispiel-das zylindrisch ausgebildete untere Ende 27aʺ in einer zylindrischen Lagerbohrung 26ʺ des Gehäusedeckels 22ʺ zentrisch gelagert und geführt ist, ragt der Außenvierkant des oberen Zapfenendes 27bʺ in die passende Vierkant-Durchgangsöffnung 35ʺ der Zwischenscheibe 33ʺ hinein, so daß sich zwischen diesem oberen Zapfenende 27bʺ (und damit auch zwischen dem Antriebssonnenrad 18ʺ) und der Zwischenscheibe 33ʺ wiederum eine Drehfestverbindung ergibt.From the opposite side of the drive sun gear 18ʺ is again - similar to the first embodiment - a pin 27ʺ also firmly connected to it centrally upwards, which has a lower, cylindrical end 27aʺ and an upper end 27bʺ adjoining it upwards, which with a Outside square is provided. While - again essentially the same as in the first exemplary embodiment - the cylindrical lower end 27aʺ is centrally supported and guided in a cylindrical bearing bore 26ʺ of the housing cover 22ʺ, the outer square of the upper pin end 27bʺ protrudes into the suitable square through opening 35ʺ of the intermediate disk 33ʺ, so that between this upper end of the pin 27bʺ (and thus also between the drive sun gear 18ʺ) and the intermediate disc 33ʺ in turn results in a rotationally fixed connection.

Der innenverzahnte Zahnkranz 57 ist generell in Form eines flachen Ringes ausgebildet, und er ist ferner in eine passende, nach oben offene Ausnehmung 62 des Gehäuses 6ʺ verdrehsicher eingesetzt. Letzteres könnte beispielsweise dadurch geschehen, daß ein kreisringförmiger Zahnkranz gleichzeitig mit den Schrauben 53 für die Befestigung des Gehäusedeckels 22ʺ festgelegt wird oder daß beispielsweise wenigstens ein Umfangsansatz des Zahnkranzes in eine entsprechende Ausnehmung an der Oberseite des Gehäuses 6ʺ eingreift. Im vorliegenden Falle ist der Zahnkranz 57 dadurch verdrehsicher in die Ausnehmung 62 des Gehäuses 6ʺ eingesetzt, daß dieser innenverzahnte Zahnkranz 57 an seiner Außenumfangsseite 63 in Form eines Vielecks, vorzugsweise in Form eines Sechsecks oder Achtecks (wie in Fig. 12 dargestellt) ausgeführt ist; dementsprechend ist auch in genauer Anpassung die Ausnehmung 62 an ihrer Innenumfangsseite vieleckig (vorzugsweise sechs- oder achteckig) ausgeführt. Der innenverzahnte Zahnkranz 57 braucht daher beim Zusammenbau des Drehverschlusses lediglich lose in die Ausnehmung 62 eingelegt zu werden.The internally toothed ring gear 57 is generally designed in the form of a flat ring, and it is also inserted in a suitable, upwardly open recess 62 of the housing 6ʺ in a rotationally secure manner. The latter could happen, for example, in that an annular toothed ring is fixed simultaneously with the screws 53 for fastening the housing cover 22ʺ or that, for example, at least one peripheral shoulder of the toothed ring engages in a corresponding recess on the top of the housing 6ʺ. In the present case, the ring gear 57 is rotatably inserted into the recess 62 of the housing 6ʺ that this internally toothed ring gear 57 is designed on its outer peripheral side 63 in the form of a polygon, preferably in the form of a hexagon or octagon (as shown in Fig. 12); accordingly, the recess 62 is also polygonal (preferably hexagonal or octagonal) on its inner circumferential side in a precise adaptation. The internally toothed ring gear 57 therefore only needs to be loosely inserted into the recess 62 when assembling the twist lock.

Es versteht sich im übrigen von selbst, daß die axiale Höhe des Antriebssonnenrades 18ʺ, des innenverzahnten Zahnkranzes 57 und der Planetenräder 58 etwa gleichgroß ist, wie es sich auch aus Fig. 11 ersehen läßt.It goes without saying that the axial height of the drive sun gear 18ʺ, the internally toothed ring gear 57 and the planet gears 58 is approximately the same size, as can also be seen from Fig. 11.

Zur Ausbildung des Gehäusedeckels 22ʺ sei noch erwähnt, daß in seine Oberseite, in praktisch gleichartiger Weise wie anhand des ersten Ausführungsbeispieles ausführlich erläutert ist, ein Zahnring 28ʺ mit einer Vielzahl von Eingriffszähnen 29ʺ eingearbeitet ist, die mit der hier nicht näher veranschaulichten Sperrklinke (30) zusammenwirken. Ferner kann der Gehäusedeckel 22ʺ im Bereich seines Außenumfanges noch einen nach unten bundartig vorstehenden Rand 64 aufweisen, der in eine passende Umfangsausdrehung 65 eingreift. Außenumfang von Gehäuse 6ʺ und Gehäusedeckel 22ʺ sind zylindrisch und bündig zueinander ausgeführt.For the formation of the housing cover 22ʺ it should also be mentioned that a toothed ring 28ʺ with a plurality of engagement teeth 29 ist is incorporated into its upper side, in practically the same manner as explained in detail with reference to the first exemplary embodiment, which with the pawl (30), which is not illustrated in any more detail here. work together. Furthermore, the housing cover 22 'in the area of its outer circumference can also have a downwardly projecting edge 64 which engages in a suitable circumferential recess 65. The outer circumference of the housing 6ʺ and housing cover 22ʺ are cylindrical and flush with each other.

Eine andere vorteilhafte Ausgestaltung dieses Drehgriffes sei insbesondere anhand der Fig. 13 zusammen mit der Fig. 11 erläutert.Another advantageous embodiment of this rotary handle is explained in particular with reference to FIG. 13 together with FIG. 11.

Wie bereits in Fig. 4 gestrichelt (aber ohne Bezugszeichen) angedeutet ist, sind an den inneren Enden 8a bzw. 9a der Zugseil-Spannelemente 8 und 9 etwa zylinderförmige Nippel befestigt, die in Bohrungen der Seilscheibe 13 bzw. 13ʺ formschlüssig und lösbar eingesetzt sind.As indicated in dashed lines in Fig. 4 (but without reference numerals), approximately cylindrical nipples are attached to the inner ends 8a and 9a of the traction cable tensioning elements 8 and 9, which are inserted positively and detachably into the bores of the rope pulley 13 and 13 13 .

Gemäß Fig. 11 kann nun der Nippel 66 am inneren Ende, z. B. 9aʺ, des einen Zugseil-Spannelements 9ʺ von der Seilscheibe 13ʺ nach unten vorstehen und in einer in den Boden 6aʺ des flachen Gehäuses 6ʺ eingearbeiteten Nut 67 geführt sein, deren Verlauf insbesondere aus Fig. 13 zu ersehen ist. Diese Nut 67 kann nun gemäß Fig. 13 in Form eines nahezu vollen Kreisringes ausgeführt sein, wobei jedoch die beiden entgegengesetzten Enden 67a und 67b dieser Nut 67 mit dem nach unten vorstehenden Nippel 66 zusammenwirkende Endanschläge bilden, die die Drehbewegung der Seilscheibe 13ʺ in beiden Drehrichtungen derart begrenzen, daß die Seilscheibe 13ʺ in diesem Falle - zwischen den beiden Nutenden 67a und 67b - nahezu eine volle Umdrehung bei ihrem Lösen oder Festziehen ausführen kann.11, the nipple 66 at the inner end, for. B. 9aʺ, of a traction cable tensioning element 9ʺ protrude downward from the pulley 13ʺ and be guided in a groove 67 machined into the bottom 6aʺ of the flat housing 6ʺ, the course of which can be seen in particular from FIG. 13. 13 in the form of an almost full circular ring, but the two opposite ends 67a and 67b of this groove 67 form end stops which cooperate with the downwardly projecting nipple 66 and which rotate the cable pulley 13ʺ in both directions of rotation limit such that the sheave 13ʺ in this case - between the two groove ends 67a and 67b - can perform almost a full turn when loosening or tightening.

Eine abgewandelte Ausführungsvariante der zuvor insbesondere anhand der Fig. 13 erläuterten und die Drehbewegung der Seilscheibe begrenzenden Nut im Gehäuseboden 6ʺ sei anhand Fig. 14 erläutert, in der gleichartige Teile wie in den Fig. 11 und 13 mit denselben Bezugszeichen versehen sind.A modified embodiment variant of the groove in the housing base 6ʺ previously explained in particular with reference to FIG. 13 and limiting the rotary movement of the rope sheave is explained with reference to FIG. 14, in which parts similar to those in FIGS. 11 and 13 are provided with the same reference numerals.

In der geschnittenen Grundrißdarstellung dieser Fig. 14 ist zu erkennen, daß die genannte Nut 68 im Boden des Gehäuses 6ʺ in diesem Falle in Form einer Spirale ausgeführt ist, die beispielsweise - wie dargestellt - eine eineinhalbfache Umdrehung darstellt. die entgegengesetzten Enden 68a und 68b dieser spiralförmigen Nut 68 wirken wiederum als Endanschläge für den in diese Nut nach unten vorstehenden Nippel 66 am inneren Ende des einen Zugseil-Spannelementes. Damit der Nippel 66 der spiralförmigen Nut 68 folgen kann, ist er zweckmäßig in radialer Richtung begrenzt beweglich in der Seilscheibe 13ʺ gehalten. Gemäß Fig. 14 kann die Seilscheibe 13ʺ somit bei ihrer Löse- bzw. Festzieh-Drehbewegung eine der Länge der spiralförmigen Nut 68 entsprechende eineinhalbfache Umdrehung ausführen.In the sectional plan view of this Fig. 14 it can be seen that the said groove 68 in the bottom of the housing 6ʺ in this case is in the form of a spiral which, for example - as shown - represents one and a half times the rotation. the opposite ends 68a and 68b of this spiral groove 68 in turn act as end stops for the nipple 66 projecting downwards into this groove on the inside End of a traction cable tensioning element. So that the nipple 66 can follow the spiral groove 68, it is expediently held in the radial direction in the cable pulley 13ʺ to a limited extent. According to FIG. 14, the rope pulley 13ʺ can thus execute a one and a half times the rotation corresponding to the length of the spiral groove 68 during its loosening or tightening rotary movement.

Schließlich sei noch festgestellt, daß dieser Erfindungsgemäße Drehverschluß zumindest teilweise aus Metall oder einem schlagfesten, verschleißarmen Kunststoff oder auch aus einer sinnvollen Kombination aus solchen Metall- und Kunststoffteilen hergestellt sein kann.Finally, it should also be noted that this twist lock according to the invention can be made at least partially from metal or an impact-resistant, low-wear plastic or from a reasonable combination of such metal and plastic parts.

Claims (14)

  1. Rotary fastener for a sports shoe, particularly a ski boot, containing
    a) a flat housing (6, 6") which is to be fixed on the upper (2, 4) of the shoe and has a housing cover (22, 22") releasably fixed on it at the top,
    b) a wire reel (13, 13") which is rotatably mounted in the housing and has drive elements (17, 51, 58) provided in the peripheral region,
    c) two traction wire tensioning elements (8, 9) which are passed out of the housing on opposing sides and can be brought into engagement with the edges of closures flaps of the shoe which are to be drawn together, the inner ends (8a, 9a, 9a") of the said tensioning elements (8, 9) located inside the housing being fixed approximately diametrically opposite the wire reel (13, 13"),
    d) a drive reel (18, 18', 18") which is also rotatably mounted in the housing and drives the drive elements of the wire reel,
    e) a rotary knob (7) which is arranged on the outside of the housing, rotatably moveable relative thereto and connected to the drive reel so as to be fixed against rotation in such a way that by its rotary movement it can alter the effective length of the traction wire tensioning members in opposite directions for the purpose of tightening and loosening the shoe closure flaps,
    f) a ratchet arrangement (28, 30, 33) which is provided in the region between the rotary knob and the housing, has a plurality of locking positions for the tightening movement of the rotary knob and contains a toothed ring (28. 28") provided with a plurality of engaging teeth (29, 29") as well as a pawl (30) which can be brought into engagement therewith in such a way that during the tightening movement of the rotary knob the pawl is held in its engaged position whereas during the loosening movement of the rotary knob it is pivoted into a release position,
    characterized by the following further features:
    g) the toothed ring (28, 28") is inserted with its engaging teeth (29, 29") into the upper face of the housing cover (22, 22");
    h) an intermediate reel (33, 33") which is arranged between the rotary knob (7) and the housing cover (22, 22") supports the pawl (30), which is tensioned against the toothed ring, in a bore (32) lying in the region above the toothed ring (28, 28") of the housing cover;
    i) the intermediate reel (33, 33") supporting the pawl (30) is connected to the drive reel (18, 18', 18") so as to be fixed against rotation.
  2. Rotary fastener as claimed in claim 1, characterized in that the rotary knob (7) is mounted and guided so as to be capable of limited relative rotary movement on the upper face of the intermediate reel (33), creating a free play (LW).
  3. Rotary fastener as claimed in claim 2, characterized in that the free play (LW) of the rotary knob (7) is limited by the end stops (41a, 41b) of a recess (41) in the shape of a ring sector which is provided in the intermediate reel (33) and in which a tang (40) protruding from the underside of the rotary knob engages, and a control recess (34) in the form of a ring sector is produced in the underside of the rotary knob, which has a control surface (34a) which rises like a ramp at one end and with which an upwardly directed control projection (30b) of the pawl (30) engages in such a way that the pawl is held in one free play end position in its engaged position corresponding to the tightening movement of the rotary knob and in the other free play end position in its release position corresponding to the loosening movement of the rotary knob by the control surface (34a).
  4. Rotary fastener as claimed in claim 1, characterized in that the housing cover (22) has fixing pins (23, 23a) on its underside running parallel to the axis of rotation (1a) of the rotary knob (7) and capable of connection to the housing base (6a), and one (23a) of these fixing pins at the same time forms a rotary journal pin for the wire reel (13).
  5. Rotary fastener as claimed in claim 1, characterized in that the drive reel (18, 18', 18") has an upwardly protruding pin (17, 17', 27") the lower cylindrical end (27a, 27a") of which is guided so as to be rotatably moveable in a central bore (26, 26") of the housing cover (22, 22") whilst the upper end (27b, 27b") engages so as to be fixed against rotation in a central opening (35, 35") in the intermediate reel (33, 33"), a threaded bore (27c) being provided in the pin (27) into which is screwed a collar screw (39) inserted through a central bore (38) set down in the rotary knob (7).
  6. Rotary fastener as claimed in claim 5, characterized in that a Maltese cross transmission is provided between the intermediate reel (33) and the wire reel (18), and the wire reel (13) is constructed on its upper face in the form of a Maltese cross disc with radial guide grooves (17) distributed on the periphery and the drive reel (18) is constructed as a driving disc with two eccentrically arranged drive pins (19) which come into engagement alternately and in succession with the guide grooves in the Maltese cross disc during a rotary movement of the driving disc.
  7. Rotary fastener as claimed in claim 5, characterized in that a spur gear system is provided between the intermediate reel and the wire reel (13), the wire reel having a toothed wheel (50) on its upper side, and the drive reel (18') is constructed in the form of a drive pinion which is in toothed engagement with the toothed wheel (50) of the wire reel.
  8. Rotary fastener as claimed in claim 5, characterized in that a planetary gear is provided between the intermediate reel (33") and the wire reel (13"), and the drive reel is constructed in the form of a driving sun wheel (18") and arranged centrally in an internally toothed gear ring (57) which is supported so as to be fixed against rotation on the flat housing (6") and surrounds the wire reel in the region of its upper face, and at least one planet wheel (58) mounted so as to be freely rotatable on the upper face of the wire reel (13") is in toothed engagement with the driving sun wheel (18") on the one hand and the internally toothed gear ring (57) on the other hand.
  9. Rotary fastener as claimed in claim 8, characterized in that the wire reel (13") is mounted centrally in the flat housing (6") by means of a bearing projection (13"a) protruding on its underside and a guide pin (61) which projects centrally downwards from the driving sun wheel (18") is guided so as to be freely rotatable in a central guide bore (60) in this wire reel.
  10. Rotary fastener as claimed in claim 8, characterized in that the internally toothed gear ring (57) is constructed in the form of a flat ring and inserted so as to be protected against torsion into an appropriate recess (62) which is open towards the top in the flat housing (6").
  11. Rotary fastener as claimed in claim 8, characterized in that the housing cover (22") has an upwardly protruding annular peripheral edge (54) which defines a recess (55) which is open towards the top and in which the intermediate reel (33") is received so as to fit in diameter and height and to be freely rotatable.
  12. Rotary fastener as claimed in claim 1, in which approximately cylindrical nipples which are inserted into bores of the wire reel so as to be form-locking and releasable are fixed on the inner ends of the traction wire tensioning elements, characterized in that the nipple (66) on the inner end (9a") of one traction wire tensioning element (9") protrudes downwards from the wire reel (13") and is guided in a groove (67, 68) made in the base (6a") of the flat housing (6"), whereby this downwardly protruding nipple (66) and the opposing ends (67a, 67b, 68a, 68b) of the groove form co-operating end stops to limit the rotary movement of the wire reel.
  13. Rotary fastener as claimed in claim 12, characterized in that the groove (67) is constructed in the form of an almost complete circle.
  14. Rotary fastener as claimed in claim 12, characterized in that the groove (68) is contructed in form of a spiral and the nipple (66) which co-operates with it is retained in the wire reel (13") so as to be capable of limited radial movement.
EP87109608A 1986-08-08 1987-07-03 Rotating device for a sports shoe, particularly a ski boot Expired - Lifetime EP0255869B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87109608T ATE84402T1 (en) 1986-08-08 1987-07-03 ROTARY LOCK FOR A SPORTS BOOT, ESPECIALLY A SKI BOOT.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3626837 1986-08-08
DE19863626837 DE3626837A1 (en) 1986-08-08 1986-08-08 TURN LOCK FOR A SPORTSHOE, ESPECIALLY SKI SHOE

Publications (3)

Publication Number Publication Date
EP0255869A2 EP0255869A2 (en) 1988-02-17
EP0255869A3 EP0255869A3 (en) 1989-07-26
EP0255869B1 true EP0255869B1 (en) 1993-01-13

Family

ID=6306916

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87109608A Expired - Lifetime EP0255869B1 (en) 1986-08-08 1987-07-03 Rotating device for a sports shoe, particularly a ski boot

Country Status (4)

Country Link
US (1) US4748726A (en)
EP (1) EP0255869B1 (en)
AT (1) ATE84402T1 (en)
DE (2) DE3626837A1 (en)

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Also Published As

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EP0255869A3 (en) 1989-07-26
DE3626837A1 (en) 1988-02-11
EP0255869A2 (en) 1988-02-17
ATE84402T1 (en) 1993-01-15
DE3783534D1 (en) 1993-02-25
US4748726A (en) 1988-06-07

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