Land vehicles – Skates – Wheeled skate
Patent
1995-01-10
1996-12-31
Camby, Richard M.
Land vehicles
Skates
Wheeled skate
280 1127, A63C 1706
Patent
active
055886582
DESCRIPTION:
BRIEF SUMMARY
The invention relates to a device for mounting rollers in inline roller skates, in which the axles of the rollers extend through openings in a frame and are mounted in a sub-frame which can be secured to the frame, wherein the inside diameter of the openings in the frame are larger than the external diameter of the roller axles, and the sub-frame is capable of securement to the frame in at least two different vertical positions.
An apparatus for mounting rollers in different vertical positions is seen in WO92/10251, for example. In this known apparatus, the main teaching is to adjust the spacing of the axles of the rollers in the longitudinal direction of the skate simultaneously with an adjustment of the vertical position. In the construction also derived from this prior document, the construction including a sub-frame, the vertical adjustment takes place against the force of a spring, using a key which brings about movement of the sub-frame in the vertical direction, while the spring tension increases. The bearing surfaces contact each other eccentrically, and are naturally subjected to a corresponding wear.
The invention has as its aim the provision of an apparatus of the kind described above, with which it is possible to achieve a particularly simple and speedy alteration of the vertical position with considerable stability and without requiring particular tools, and simultaneously to accomplish a quick exchange of rollers or other components subject to wear. To achieve this aim, the construction in accordance with the invention is principally characterized in that the sub-frame is capable of positive securement in at least two different vertical positions using an insert member extending through the frame and the free flanks of the sub-frame. By providing that the sub-frame is positively securable in two different vertical positions using an insert member extending through the frame and the free flanks of the sub-frame, a secure clamping in the various desired positions is achieved utilizing a simple insert member, such that the forces are adsorbed with high precision in the various openings of the sub-frame. Because of the positive grip on the free flanks or the openings of the free flanks of the sub-frame, there is also attained a uniform absorption of forces, and therefore a substantially reduced degree of wear. At the same time, this construction makes possible a simple release of the connection without requiring substantial force and without the use of particular tools, in which the construction has, moreover, the advantage of providing all of the prerequisites for the use of damping members with different damping characteristics as components for desired vertical adjustments.
In a particularly simple manner, the construction according to the invention is so arranged that the mounting of the sub-frame to the frame is accomplished utilizing an eccentric which projects through the free flanks of the sub-frame and the frame, this construction having the advantage of making possible an adjustment of the vertical position without going through intermediate stages. By virtue of the positive grip within an opening of the free flanks of the sub-frame, a full absorption of force is possible without eccentric and wear-increasing stresses.
In accordance with a further advantageous modification, the construction is primarily characterized in that the different vertical positions of the sub-frame relative to the frame are delimited by elastic inserts such as spacers between the web connecting the free flanks of the sub-frame and the sole or interior of the frame. Such elastic inserts can be of different stiffness and can have different material properties, especially a differing shore-hardness or different moduli of elasticity, such that along with a height adjustment of the sub-frame, the damping characteristics can also be favourably adjusted. Moreover, by selecting an appropriate damping, the wear-stresses can be significantly reduced. The latter use of an elastic insert can be carried out in a very simple
REFERENCES:
patent: 5135244 (1992-08-01), Allison
patent: 5366232 (1994-11-01), Pozzobon et al.
patent: 5441286 (1995-08-01), Pozzobon
Perner Johann
Trinkaus Gerhard
Camby Richard M.
Koflach Sport Gesellschaft m.b.H. & Co. KG
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