US 2021/0402573 A1Published application

Adjustable Wrench

AssigneeHui-Chen Chang

InventorWang-Lien Chang

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Abstract

An adjustable wrench has a handle assembly and a gripping assembly. The handle assembly includes a rotating handle, a pivot shaft, and a holding handle. The pivot shaft is securely mounted in the rotating handle, and has a right-handed screw thread and a left-handed screw thread. The holding handle is mounted around the pivot shaft. The gripping assembly includes a base, a lower jaw, an upper jaw, and a guiding module. The lower jaw engages with the left-handed screw thread of the pivot shaft. The upper jaw engages with the right-handed screw thread of the pivot shaft. The guiding module is slidably mounted through the base and the lower jaw and is securely connected to the upper jaw. By turning the rotating handle as well as the pivot shaft, the upper jaw and the lower jaw can be quickly moved to a closed state or an open state.

Claims10

Dependent claims

An adjustable wrench comprising:

a handle assembly including
a rotating handle being tubular and having an axial passage, and the axial passage formed through the rotating handle;
a pivot shaft having
an upper section;
a lower section securely mounted in the rotating handle;
and
a right-handed screw thread and a left-handed screw thread, and the right-handed screw thread and the left-handed screw thread separately formed on an outer side surface of the pivot shaft and disposed on the upper section of the pivot shaft;
and
a holding handle being tubular, mounted around the upper section of the pivot shaft, and having
a lower end protruding in the rotating handle;
and
an upper end provided with a connecting portion;
and
a gripping assembly including
a base securely mounted on the holding handle and having a connecting hole, and the connecting hole formed through the base, wherein the connecting portion of the holding handle protrudes in the connecting hole and is connected with the base;
a lower jaw securely mounted on the base and having a lower threaded hole, and the lower threaded hole formed through the lower jaw and mounted around the upper section of the pivot shaft, wherein the lower jaw engages with the left-handed screw thread of the pivot shaft;
an upper jaw having an upper threaded hole, and the upper threaded hole formed through the upper jaw and mounted around the upper section of the pivot shaft, wherein the upper jaw engaging with the right-handed screw thread of the pivot shaft;
and
a guiding module slidably mounted through the base and the lower jaw and having an end portion securely connected to the upper jaw.

16 more elements

Dependencies are inferred from the claim text.