Wrench
OwnerJun-Fan CHENinventor
Life of this patent
Estimating the term…
Abstract
The wrench includes a main body, two clamping members, a sliding member, two connecting arms, and a rotation member. The main body has two extending arms and a threaded rod section wherein each extending arm is formed with a sliding groove. Each clamping member has a channel for sleeving onto the extending arm so as to be movable along the extending arm. Two ends of each connecting arm are pivotably connected with the sliding member and the clamping member. A pivot pin penetrates the clamping member and the sliding groove and is slidable in the sliding groove. The rotation member is rotatably disposed on the sliding member with an end. The rotation member is screwed with the threaded rod section. The two clamping members move toward each other or leave each other when the rotation is rotated with respect to the threaded rod section.
Claims11
A wrench, comprising:
- a main body, defining an axial direction, the main body having a first end and an opposite second end, the main body having two extending arms extending outward from the first end, the two extending arms extending oppositely and obliquely, the main body having a gripping portion at the second end, the main body further having a screwing mechanism between the first end and the second end;
- two clamping members, each clamping member being slidably disposed one of the extending arms, each clamping member being formed with a clamping portion on a face thereof facing the other clamping member, a clamp width being defined as a distance between the two clamping portions;
- a sleeve member, screwed with the screwing mechanism of the main body, the sleeve member moving with respect to the screwing mechanism along the axial direction when the sleeve member is rotated with respect to the screwing mechanism;
- two connecting arms, an end of each connecting arm being pivotably connected with one of the clamping members, an opposite end of the connecting arm being pivotably connected with one of the sleeve member and the screwing mechanism;
- wherein an end of each connecting arm is moved along the axial direction to further drive the two clamping members to slide on the two arms respectively so as to alternate the clamp width when the sleeve member is moved with respect to the screwing mechanism.
A wrench, comprising:
- a main body, defining an axial direction, the main body having a first end and an opposite second end, the main body having two extending arms extending outward from the first end, the two extending arms extending oppositely and obliquely, the main body having a gripping portion at the second end, the main body being formed with a threaded rod section between the first end and the second end;
- two clamping members, each clamping member being slidably connected with one of the connecting arms, each clamping member being formed with a clamping portion on a face thereof facing the other clamping member, a clamp width being defined as a distance between the two clamping portions;
- a sliding member, sleeved onto the threaded rod section of the main body, the sliding member being slidable along a longitudinal direction of the threaded rod section;
- two connecting arms, two opposite ends of each connecting arm being pivotably connected with the sliding member and one of the clamping members;
- a rotation member, rotatably connected to the sliding member, the rotation member having inner threads to screw with the threaded rod section of the main body;
- wherein when the rotation member is rotated with respect to the threaded rod section to be moved toward the gripping portion along the threaded rod section, the sliding member and the two connecting arms are moved toward the gripping portion driving by the rotation member, thereby the two connecting arms drive the two clamping members to move toward each other so as to reduce the clamp width;
- wherein when the rotation member is rotated with respect to the threaded rod section to be moved opposite to the gripping portion along the threaded rod section, the sliding member and the two connecting arms are moved opposite to the gripping portion driving by the rotation member, thereby the two connecting arms drive the two clamping members to move away from each other so as to expand the clamp width.
Dependencies are inferred from the claim text.