ES1039072U - Retractable auxiliary wheel bed bases, activated by excentric device. (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Retractable auxiliary wheel for beds bases, activated by eccentric device, wherein establish a body (1) hollow, envelope and fundamental support device, whose body (1) rectangular and adopts prismatic comporta upper third, in perpendicular position his two larger side faces vertically centered with respect to them and firmly attached thereto strong shaft bolt (2) for maintenance and rotating eccentric a thick disc (3); also introducing this body support (1) the particularity that in the center of the surface of your box base, in a position perpendicular thereto, comporta a cap (6) cilíndrico firmly soldier in half of his own height, whose cap (6) serve housing and guide to a thick balon (7) emerging from both ends of said sleeve (6), being provided at the lower end of the balloon (7) accommodation that embeds and sets the esparragoeje of a wheel (8) freewheeling while the same balon (7), by the upper end has a notch for engaging a clip or washer limiting scroll inside the cap and, finally, a short stretch top of balloon (7) dotado falling thickness for determining a kind of small head frustoconical ¥ o; settling the disco eccentric (3) is set articulado rotatably on strong shaft bolt (2) provided in the body (1) of the device properly centered said shaft (2) by convenient washers or caps to coincide fairly superimposed on height on the ball (7) carrier wheel (8) so that the head frustum of the balloon (7) remain always in contact with eccentric disk (3), this disc (3) which, according positioning, determine the emergency or wheel (8) placed under the ball (7) being provided for this purpose that the axle pin (2) to pass through the disc (3) determining eccentricity by a sufficiently displaced point center diameter, preferably in an equivalent part five to point of total length diameter; settling the eccentric disk (3) is integral with a thin lever arm (4) begins at a point diametrically symmetrical articulation own disc (3) on the shaft bolt (2), extending in the same plane disco (3) to one side of the body (1) device to emerge to the outside of himself through a narrow window torn (5) practiced to effect in the proper prism basics surface (1), it is having foreseen that capabilities both the interior of quoted prisma (1) as the longitudinal window torn (5), limit turns eccentric disk (3) from a position in which the disc diameter (3) including the shaft (2 ) determining your turn this aligned with the ball (7) porta wheel (8), position of maximum emergency balon (7) and therefore of the wheel (8), to another position determined by a rotation of the lever (4 ), and consequently the disc (3) on its axis eccentric, an angle com prendido between 45ø and 90o, preferably 70o. (Machine-translation by Google Translate, not legally binding)