Self-locking tire mold blade
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Dec 7, 2004
Grant Date -
N/A
app pub date -
Jan 7, 2003
filing date -
Jan 7, 2002
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A blade for use in a tire mold, a combination of the blade with the tire mold, and a method of attaching the blade to the tire mold. An edge portion of the blade is received in a slot in the tire mold, and a body portion extends therefrom to form a sipe in a tire. One or a pair of tab portions attached to the edge portion is received in an indent in the slot, and a wedge forces the tab portion or portions into a locked position as the blade is driven into the slot. A break-away tendon or tendons attach the wedge to the tab portion or portions and break to allow wedge movement for achieving the locked position when the blade is driven into the slot. Alternatively, a wedge is pre-positioned in an housing in the indent whereby blade tab portions move into a locked position upon contact with the wedge. The mold is engraved, and the blade is formed by laser or water jet cutting.
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