초록 ▼

A track has walls which enclose a hollow interior and among these walls are two laterally directed flanges which are separated by a slot that opens downwardly out of the track for the full length of the track. The track contains trolleys having wheels which roll along flanges of the track and the tr

A track has walls which enclose a hollow interior and among these walls are two laterally directed flanges which are separated by a slot that opens downwardly out of the track for the full length of the track. The track contains trolleys having wheels which roll along flanges of the track and the trolleys carry hangers which depend through the slot in the track and are attached to a door or some other suspended device. One of the trolleys also carries a latching mechanism which engages a keeper located within the track to secure the trolleys and suspended device in a predetermined position along the track. The latching mechanism includes a latch bar which pivots on the trolley between engage and release position and a spring which urges the bar to its engage position－the position in which it will engage the keeper upon encountering the keeper. The latching mechanism also includes a release cord which depends from its latch bar through the slot in the track and, when pulled, causes the latch bar to pivot against the bias of the spring.

대표청구항 ▼

In combination with a track having a hollow interior, horizontal ways presented toward the hollow interior, and a downwardly presented slot between the ways; a trolley which rolls along the ways; and a hanger which is coupled to the trolley and extends through the downwardly presented slot along the

In combination with a track having a hollow interior, horizontal ways presented toward the hollow interior, and a downwardly presented slot between the ways; a trolley which rolls along the ways; and a hanger which is coupled to the trolley and extends through the downwardly presented slot along the ways for suspending a door or other device from the trolley and the track within which the trolley moves; an improved apparatus for holding the trolley in a predetermined position along the track, said apparatus comprising: a latch mechanism carried by the trolley substantially entirely within the hollow interior of the track and being movable on the trolley between first and second positions without projecting out of the track; and a keeper located within the hollow interior of the track and being attached to the track, the keeper being configured and positioned to be engaged by the latch mechanism when the latch mechanism is in its first position and the trolley is in the predetermined position along the track, but not when the latch mechanism is in its second position.