|
(11) | EP 2 901 881 B1 |
| (12) | EUROPEAN PATENT SPECIFICATION |
|
|
| (54) |
Rack element for sports footwear Regalelement für Sportschuhe Élément de crémaillère pour des chaussures de sport |
|
|
|||||||||||||||||||||||||||||||
| Note: Within nine months from the publication of the mention of the grant of the European patent, any person may give notice to the European Patent Office of opposition to the European patent granted. Notice of opposition shall be filed in a written reasoned statement. It shall not be deemed to have been filed until the opposition fee has been paid. (Art. 99(1) European Patent Convention). |
[0002] Rack elements for sports footwear are known consisting of a plate provided with a hole for connection to one side of the vamp and having its upper surface provided with a plurality of teeth for selective engagement by a ring connected to a puller pivoted to a lever arm connected to the other side of the vamp.
[0004] However these known rack elements have the drawback of unreliable adjustment of the degree of tensioning between the two sides of the vamp, which is related to the distance between the teeth cavities.
[0005] The object of the invention is to eliminate this drawback by providing a rack element in which a micrometric adjustment can be achieved in a simple and comfortable manner.
[0006] This object is achieved according to the invention by a rack element for sports footwear as described in claim 1.
[0007] The present invention is further clarified hereinafter in the form of a preferred embodiment thereof described by way of non-limiting example with reference to the accompanying drawings, in which:
Figure 1 is a perspective view of a rack element according to the invention applied to a ski boot,
Figure 2 is an exploded perspective view thereof,
Figures 3 and 4 show it in perspective assembled view in its two end-of-travel conditions,
Figures 5, 6, 7 and 8 show it in perspective view during operation, and
Figures 9, 10, 11, 12 and 13 show it in schematic lateral view during operation.
[0008] As can be seen from the figures, the rack element according to the invention consists of a base 2 preferably of carbon steel and obtained by pressing, provided with a hole 4 for engagement by a rivet for its connection to one side of the vamp 6 of the boot 8.
[0009] The base 2 is provided with two longitudinal parallel slots 10 in which the arms 12 of a fork 14 engage from below.
[0010] The arms 12 are provided with a hole 16 for insertion of a rivet 18 which engages in a hole 20 present in a rack element portion 22 provided with a plurality of teeth 24 having a distance between axes of 6-7 mm.
[0011] The lower surface of the base 2 is provided with toothing 26, the teeth of which have a distance between axes of between 2 and 3 mm.
[0012] The base 28 of the fork is provided with a pawl 30 selectively engagable in one of the teeth of the toothing 26.
[0013] The two outer lateral surfaces of the arms 12 of the fork 14 are provided with two pegs 32 bearing against the upper surface of the base.
[0014] A coil spring 34 is disposed about the rivet 18, and in the absence of external stresses maintains the rack element 22 urged against the base and maintains the pawl 30 engaged with one of the teeth of the toothing 26.
[0015] The hole 20 of the rack element has its axis at a distance a from the rear edge of the rack element which is less than the distance b from its lower surface, so as to assume an eccentric configuration.
[0016] To adjust the rack element, the user rotates the rack element 24 while at the same time pressing it downwards. As a result of the resting of the pegs 32 on the upper surface of the base 2 and the eccentric form of the hole 20, the pawl 30 rotates and is released from the tooth of the toothing 26, enabling the fork 14 to slide along the two slots 10. On termination of this operation the user releases the rack element which, pulled back by the action of the spring 34, becomes again positioned facing the base, with the pawl of the fork 14 engaged in another tooth of the toothing 26 of the base 2.
- a substantially rectangular base (2) connected to one side of the vamp, its lower surface being provided with toothing (26) with a pitch of 2-3 mm,
- a fork (14) which embraces said base from below and having its arms (12) provided with holes (16) for engagement by a pivot pin (18) on which there is also pivoted a rack element (22) provided with at least one tooth (24) for engagement by the ring, the axis of the hole (20) of the rack element (22) having a distance (a) from its rear edge which is less than the distance (b) from its lower surface, the base (28) of the fork (14) being provided with a pawl (30) selectively engagable in one of the teeth of the toothing (26) of the base (2), said pawl having a depth not greater than the difference between the distances (a) and (b), the lateral surfaces of the arms (12) of the fork (14) being provided with pegs (32) interacting with the upper surface of the base (2) and forming pivotal axles for the fork (14) during the operation of the rack element (22),
- a spring (34) disposed about said pin (18) and which, in the absence of external stresses, maintains said tooth (24) engaged in the toothing (26) and maintains said rack element (22) urged against said base (2).
- Ein im Wesentlichen rechteckiges Grundelement (2), das an einer Seite des Blattes befestigt und dessen Unterseite mit einer 2 - 3 mm tiefen Zahnung (26) versehen ist,
- Eine Gabel (14), die das Grundelement von unten her einrahmt und dessen Seitenteile (12) mit Löchern (16) versehen sind, um mit einem Gelenkstift (18) in Eingriff zu treten, an dem wiederum eine Zahnstange (22) drehbar angebracht ist, die mindestens einen Zahn (24) zum Einhaken in den Ring besitzt, wobei eine Entfernung (a) der Bohrungsachse des Loches (20) der Zahnstange (22) von deren hinterem Ende kleiner ist als die Distanz (b) zu deren Unterseite, wobei die Basis (28) der Gabel (14) mit einer Sperrklinke (30) versehen ist, die wahlweise in eine der Vertiefungen der Zahnung (26) des Grundelements (2) einrasten kann, wobei die Sperrklinke nicht länger als die Differenz zwischen den beiden Distanzen (a) und (b) ist, wobei die Außenseiten der Seitenteile (12) der Gabel (14) Zapfen (32) aufweisen, die auf der Oberseite des Grundelements (2) entlanglaufen und Drehachsen für die Gabel (14) bilden, wenn die Zahnstange (22) betätigt wird,
- Eine Feder (34), die den Gelenkstift (18) umschließt und welche, sofern kein Druck von außen ausgeübt wird, den Zahn (24) in der Zahnung (26) eingerastet hält und die Zahnstange (22) gegen das Grundelement (2) drückt.
- une base (2) sensiblement rectangulaire, fixée sur un côté de l'empeigne et dont la surface inférieure est pourvue d'une denture (26) d'un pas de 2 à 3 mm,
- une fourche (14) qui étreint ladite base par-dessous et dont les bras (12) sont pourvus de trous (16) destinés à recevoir une broche de pivotement (18) sur laquelle vient également pivoter un élément de crémaillère (22) pourvu d'au moins une dent (24) destinée à coopérer avec la boucle, l'axe du trou (20) de l'élément de crémaillère (22) étant situé à une distance (a) du bord arrière de ce dernier qui est inférieure à la distance (b) le séparant de la surface inférieure de celui-ci, la base (28) de la fourche (14) étant pourvue d'un arrêtoir (30) susceptible de coopérer de manière sélective avec l'une des dents de la denture (26) de la base (2), ledit arrêtoir présentant une profondeur correspondant au maximum à la différence existant entre les distances (a) et (b), les surfaces latérales des bras (12) de la fourche (14) étant pourvus de chevilles (32) qui interagissent avec la surface supérieure de la base (2) et forment des axes de pivotement pour la fourche (14) pendant la manipulation de l'élément de crémaillère (22),
- un ressort (34) disposé autour de ladite broche (18) et qui, en l'absence de contraintes externes, maintient ladite dent (24) en coopération avec la denture (26) et maintient ledit élément de crémaillère (22) pressé contre ladite base (2).
REFERENCES CITED IN THE DESCRIPTION
This list of references cited by the applicant is for the reader's convenience only. It does not form part of the European patent document. Even though great care has been taken in compiling the references, errors or omissions cannot be excluded and the EPO disclaims all liability in this regard.
Patent documents cited in the description