US 12,280,392 B2
Glue gun
Yueming Li, Hangzhou (CN)
Assigned to HANGZHOU UNITED TOOLS CO., LTD., Hangzhou (CN); and HANGZHOU GREAT STAR INDUSTRIAL CO., LTD., Hangzhou (CN)
Filed by HANGZHOU UNITED TOOLS CO., LTD., Hangzhou (CN); and HANGZHOU GREAT STAR INDUSTRIAL CO., LTD., Hangzhou (CN)
Filed on Jun. 17, 2022, as Appl. No. 17/843,646.
Application 17/843,646 is a continuation in part of application No. 16/627,142, granted, now 11,364,519, previously published as PCT/CN2019/070422, filed on Jan. 4, 2019.
Prior Publication US 2022/0314270 A1, Oct. 6, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. B05C 17/01 (2006.01)
CPC B05C 17/01 (2013.01) 20 Claims
OG exemplary drawing
 
1. A glue gun, comprising:
a first handle and a second handle, wherein the first handle is connected to the second handle via a pivot pin shaft; one of the first handle and the second handle is arranged as a fixed handle, and the other one is arranged as a movable handle rotating relative to the fixed handle;
the movable handle is provided with an actuating member, and the actuating member is configured to push a push member of the glue gun; and
at least one of the actuating member and the pivot pin shaft is arranged to be adjustable in position so as to switch between at least two gears, so that a ratio of a spacing between the pivot pin shaft and a force application point on the movable handle to a spacing between the pivot pin shaft and a force bearing point on the actuating member is changed, thus enabling a change in a force applied on the push member as well as a change in a rate of movement of a push rod.