A wheeled object of the type adapted to be operated by a...

Details A wheeled object of the type adapted to be operated by a... A wheeled object of the type adapted to be operated by a...

A - Human Necessities

61

G

A61G 7/08 (2006.01) A61G 1/02 (2006.01)

Patent

CA 2589811

A wheeled object or vehicle, such as a hospital bed(10) comprises a main chassis or frame (12) supported by a plurality of supporting wheels or rollers (11), which define the vertices of a polygonal supporting surface (21). The bed, which is usually moved by a walking person, is provided with at least one motor driven driving device (15), including at least one driving wheel or roller (18), positioned within said polygonal supporting surface. The driving device is rotatable about a substantially vertical axis (14) in relation to the chassis or frame so as to change the angular position of the driving wheel (18) in relation to the chassis or frame. Biasing means, such as a compression spring or a pneumatic or hydraulic cylinder (22, 34) is provided for biasing the driving device (15) in a direction away from the main chassis or frame (12) and towards the supporting surface (21). The biasing force is controlled such that the driving device (15) id kept in close non-skidding contact with the ground or floor surface (21) without lifting the supporting wheels (11) out of contact with the supporting surface.

L'invention concerne un objet ou véhicule à roues, tel qu'un lit d'hôpital (10), comprenant un châssis ou cadre principal (12) soutenu par une pluralité de roues ou roulettes de support (11) définissant les sommets d'une surface de support polygonale (21). Ce lit, généralement déplacé par une personne qui marche, est pourvu d'au moins un dispositif d'entraînement à moteur (15) comprenant au moins une roue ou roulette d'entraînement (18) disposée à l'intérieure de la surface de support polygonale. Ce dispositif d'entraînement peut pivoter autour d'un axe sensiblement vertical (14) par rapport au châssis ou cadre, de sorte à modifier la position angulaire de la roue d'entraînement (18) par rapport au châssis ou cadre. Un moyen de sollicitation, tel qu'un ressort de compression ou un cylindre pneumatique ou hydraulique (22, 34) sert à solliciter le dispositif d'entraînement (15) dans un sens qui l'éloigne du châssis ou cadre principal (12), en direction de la surface de support (21). La force de sollicitation est régulée de sorte que le dispositif d'entraînement (15) soit maintenu en contact étroit de non-dérapage avec la surface du terrain ou du sol (21), sans soulever les roues de support (11) hors du contact avec la surface de support.

Affiliated with

Also associated with

Rating

A wheeled object of the type adapted to be operated by a... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with A wheeled object of the type adapted to be operated by a..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A wheeled object of the type adapted to be operated by a... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1955232