B - Operations – Transporting – 23 – P
Patent
B - Operations, Transporting
23
P
26/184
B23P 15/00 (2006.01) B29C 39/14 (2006.01) B29C 39/18 (2006.01) B29C 70/74 (2006.01) E06B 3/267 (2006.01)
Patent
CA 1217925
METHOD AND APPARATUS FOR CONTINUOUSLY FILLING GROOVES IN SASH BARS WITH HEAT INSULATING MATERIAL Abstract of the Disclosure A method and an apparatus for continuously filling grooves in metal sash bars with heat insulating synthetic resin are disclosed. The method comprises the steps of closing the opposite ends of the groove of each of the metal sash bars by end caps each having an end wall with a thinned top edge; continuously moving the metal sash bars through a path below an injection device with the grooves facing up- wardly and with at least the top edges of the end caps of one preceding sash bar and the succeeding sash bar in close contact with each other on the upstream of the injection device; and continuously injecting a solution of the heat insulating synthetic resin from the injecting device into the grooves of the sash bars at a constant injecting rate while continuously moving the sash bars. The apparatus comprises: a means for attaching end caps to opposite ends of the groove of each of the metal sash bars to close the opposite ends, the cap each having an end wall with a thinned top edge; an injection device positioned downstream of the cap attaching means for continuously injecting a solution of the heat insulating synthetic resin; a feed device positioned near the injec- tion device for continuously moving the sash bars along a path below the injection device with the grooves facing upwardly; and a rapid feed device positioned upstream of the feed device for moving a succeeding sash bar toward the preceding sash bar which is being injected with the solution of heat insulating synthetic resin at a higher rate than that by the feed device so that at least the to edges of the end caps of the preceding sash bar and the succeeding sash bar are in close contact with each other.
444132
Doguchi Nobushige
Nagai Yoshitaka
Gowling Lafleur Henderson Llp
Yoshida Kogyo K.k.
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