Glue gun with rack and pinion feeder
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United States of America Patent
Stats
-
Nov 1, 1988
Grant Date -
N/A
app pub date -
May 18, 1987
filing date -
May 16, 1986
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A glue gun includes a glue stick feed path, a heating assembly in the feed path and a glue stick feeding system. A trigger includes a gear rack extending along its upper surface and the feeding system further includes a pinion having rim teeth which engage a glue stick positioned in the feed path. The trigger is mounted for movement in a direction substantially parallel to the glue stick feed path axis and drives the pinion to advance the glue stick, when the trigger is squeezed. The trigger includes a pin extending in a guiding channel of the glue gun to permit tilting the rack toward the glue stick feed path. The pinion is mounted in a channel for displacement perpendicular to the feed path axis so that it bears against the glue stick when the trigger is tilted. The pinion may be provided with two rows of rim teeth and a portion of the glue stick periphery may extend into a trough formed between the rows.
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