Land vehicles – Skates – Shoe attaching means
Patent
1994-09-02
1997-05-13
Johnson, Brian L.
Land vehicles
Skates
Shoe attaching means
A63C 9084
Patent
active
056285264
DESCRIPTION:
BRIEF SUMMARY
FIELD OF THE INVENTION
The invention relates to a heel part for use on a ski binding, the ski binding being movable in a longitudinal direction relative to a ski-fixed guide and can be fastened in different positions with a locking piece supported in a housing and movably urged in a longitudinal direction against a housing-fixed stop by means of a spring and limitedly pivotal about the stop, the locking piece having engaging means engaging counterlocking means on the ski-fixed guide, with the locking piece with its engaging means being pivoted in direction of the counterlocking means by the spring engaging the locking piece above the stop, and with a two-arm opening lever supported in the housing, one lever arm of which has handles and the other lever arm engages the rear end of the locking piece, such that upon a pivoting of the opening lever, the locking piece is pivoted away from the guide and the locking piece is released.
DESCRIPTION OF THE PRIOR ART
In ski bindings of this type, of which designs, which are part of the state of the art, will be discussed in detail later on, the heel part, which is also called the automatic heel, is locked corresponding with the size of the shoe in a specific position along the guide. The use of a manually easily operable opening lever is mainly desired when a specific ski is more often supposed to be used with shoes having various sizes, which is mainly of great importance for the ski-rental business.
In a binding of the above-mentioned type known from EP-A-0 394 513 (FIGS. 19 and 21) the locking means are laterally opening notches provided on the locking piece, which notches can receive therein corresponding laterally projecting rows of teeth of the ski-fixed guide. The two-arm opening lever supported in the housing has two handles on the left and right of the housing, which handles are provided at the ends of a shaft and represent the first lever arm, and two further pins are provided farther in on the axis. The locking part is bent upwardly at a right angle at its rear end and then again at a right angle forwardly forming an extension, with the pins being able to engage the extension. The locking piece is in this known design bulky at its end because of it being bent twice and requires a relatively large space within the housing, which has a negative effect on its building height. Furthermore, arranging the pins on the shaft is disadvantageous in view of the load distribution and creates an area at risk of breakage. Also locking by means of laterally projecting rows of teeth is disadvantageous since a large angle of traverse of the locking piece is needed in order to enable a complete engagement of the locking teeth. Finally the handles must be pressed or pulled forwardly in order to cause a pivoting of the opening lever, which in practice eliminates or makes more difficult an operation with only one hand.
A similar construction is known from FR-A-2 451 756, in which the blocking piece has downwardly projecting locking noses received in locking holes of the guide. The locking piece has an end section bent upwardly at 90.degree. at its rear end, into which end section is recessed a window. A pin projecting from a U-shaped bar supported on the rear end of the housing is received in the window. The U-shaped bar extends approximately vertically and can be lifted up by means of a special tool which is inserted between the housing wall and the horizontally extending connecting bar of the U-shaped bar and is then rotated, with the pin lifting up the locking piece at the rear end so that it is disengaged from the guide. Using a special tool is viewed as being disadvantageous since such tools can be misplaced and are lost and in most cases not at hand when they are needed.
Furthermore, a ski binding has become known from EP-A1-498 153, which in one embodiment (FIGS. 3 to 9) has a two-arm lever which is a bent wire bar having several bending planes. The lever is supported in the housing and acts with lateral arm parts on a special connecting piece which extends downwardl
REFERENCES:
patent: 2382149 (1945-08-01), Hartman
patent: 3703013 (1972-11-01), Leach
patent: 4157193 (1979-06-01), Beyl
patent: 4522424 (1985-06-01), Luitz et al.
patent: 5096218 (1992-03-01), Bardin
patent: 5188388 (1993-02-01), Rohrmoser
patent: 5209516 (1993-05-01), Arduin et al.
Leichtfried Friedrich
Zotter Johann
HTM Sport - und Freizeitgeraete Aktiengesellschaft
Johnson Brian L.
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