Castor for furniture or the like, with locking means

A lockable castor comprising:

• a casing;
• at least two wheels configured to come into contact with a given surface;
• a mounting system configured to mount said two wheels to rotate relative to the casing on a shaft defined along a first axis that is substantially parallel to said surface, such that at least a portion of said casing is situated between said two wheels;
• a pivot defined along a second axis, said pivot being mounted to cooperate with said casing such that said second axis is both substantially orthogonal to the first axis, being contained in a first plane parallel to the two planes respectively occupied by the two wheels, and is also situated between the two planes, said pivot emerging from the casing via a first face of said casing;
• a locking-and-unlocking system configured to lock and unlock the two wheels relative to the casing, said locking-and-unlocking system comprising:
• at least one set of female notches made in at least one of the two faces of said wheels that face towards said portion of the casing,
• a lever mounted to cooperate with said casing,
• at least one male lug complementary to the female notches of said set of female notches,
• a securing system configured to secure said male lug to said lever, said lever being mounted to cooperate with said casing and configured to occupy at least two positions, a first position in which said male lug does not cooperate with any of the female notches and a second position in which said male lug is positioned in one of the female notches,
• a resilient device constantly urging said lever towards the second position,
• a pull connection, and
• a connector configured to connect a first end of the pull connection to said lever to cause the lever to pass from the second position to the first position;
• and
• a cavity defined in said portion of said casing, said cavity including a side face of substantially cylindrical shape and an opening situated in a second face of said portion of the casing opposite from the first face from which said pivot emerges, said cavity being defined in said casing portion so that said shaft passes right through said cavity,
• wherein said lever is constituted by a slide having a front face, a rear face, and a side face, the side face having a cross-section defined in a plane parallel to said first axis and perpendicular to the second axis that is substantially complementary to the cross-section of the side face of said cavity such that the slide is configured to slide in translation in said cavity between first and second positions of the slide along a direction perpendicular to said first axis, the rear face of the slide being the face that faces the inside of said cavity.