Wide panel, panel assembly, and panel forming apparatus

Details Wide panel, panel assembly, and panel forming apparatus Wide panel, panel assembly, and panel forming apparatus

B - Operations, Transporting

21

D

113/66

B21D 22/20 (2006.01) B21D 24/00 (2006.01) E04B 1/32 (2006.01)

Patent

CA 1170919

WIDE PANEL, PANEL ASSEMBLY, AND PANEL FORMING APPARATUS Abstract A novel panel and panel assembly for use in building-type structures, together with panel forming apparatus, are disclosed which are especially suitable for using portable, point-of-use, continuously oper- able, roll-forming techniques. One panel disclosed is characterized by upwardly diverging inclined sidewall portions (26, 27), wing portions (28, 29) of substan- tial lateral extent in relation to an intermediate wall portion that forms the bottom thereof, upper inclined side sections (41, 47), and centered edge fastening structure (31, 32). Another panel is characterized by vertical upper side sections (228, 229) extending above upwardly diverging inclined sidewall portions (226, 227) and offset edge fastening seam structure (231 and 232). These panels provide a greater panel width per sheet stock width, ease of assembly, spacing and track- ing surfaces for continuous edge seaming, and balanced strength with respect to loading. One panel assembly has continuous seam structure (54) with abutting in- clined side sections (41, 47) and centered interlocking lateral flange portions (46, 53). The other panel as- sembly has continuous seam structure (254) with abut- ting vertical side sections (228, 229) and offset in- terlocking flange structure. The panel forming appa- ratus changes straight panels to curved panels and is characterized by separate, alternately operable, side- wall portion and intermediate wall portion indenting drives each having alternate idle and drive modes of operation.

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