Extendible partition assembly

A horizontally extendible partition arrangement, comprising:

• first and second upright partitions disposed in sidewardly closely adjacent and substantially vertical parallel relationship, said first partition having supports adjacent lower corners thereof for supporting engagement with a floor, and said second partition having roller units adjacent lower corners thereof for rolling supportive engagement with a floor so that said second partition can be linearly moved in the lengthwise direction thereof;
• top and bottom slidable connecting structures joined between said first and second partitions adjacent respective upper and lower edges thereof for permitting said second partition to be rollingly moved between a first position wherein it substantially entirely vertically overlaps said first partition and a second position wherein said second partition extends lengthwise significantly beyond the first partition so that the first and second partitions do not significantly vertically overlap;
• said top and bottom connecting structures including horizontally elongated top and bottom slide rails fixedly secured to each of said partitions and extending horizontally therealong throughout a majority of the lengthwise extent thereof adjacent the respective upper and lower edges of the partition, the upper and lower slide rails being reversely oriented and each including a pair of generally parallel channel parts which extend horizontally lengthwise of the respective slide rail and are disposed adjacent opposite side edges thereof so as to be disposed adjacent opposite sides of the respective partition, the channel parts associated with each said slide rail defining therein a vertically-opening slide groove;
• and
• said top and bottom connecting structures also including top and bottom slide brackets fixedly secured to each said partition adjacent one end of the respective top and bottom slide rails, said slide brackets each including a sidewardly protruding cantilevered portion which projects horizontally between the sidewardly adjacent partitions and which adjacent an outer free end is provided with a vertically protruding slide part which is slidably engaged within one of the channel parts provided on the slide rail of the sidewardly adjacent partition, the top and bottom slide brackets as associated with each said partition being substantially identical but reversely vertically oriented, whereby the upper and lower brackets as fixedly mounted on each of said first and second partitions are slidably engaged with the upper and lower slide rails which are provided on the second and first partitions respectively.