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US 7,066,055 B1Granted
Ratchet wrench that can release socket rapidly
OwnerYi-Min Leeinventor
Life of this patent
Estimating the term…
Abstract
A ratchet wrench includes a wrench body, a ratchet wheel, a direction control mechanism, a drive member, a ball, and a quick release mechanism. The quick release mechanism includes a bolt, a movable rod, a press knob, and an elastic member. Thus, the socket is mounted on and detached from the driving head of the drive member easily and rapidly, thereby facilitating a user mounting the socket on the driving head of the drive member and detaching the socket from the driving head of the drive member.
Claims17
A ratchet wrench, comprising:
- a wrench body;
- a ratchet wheel mounted in the wrench body;
- a direction control mechanism mounted on a first side of the wrench body and engaged with the ratchet wheel to control an operation direction of the ratchet wheel;
- a drive member having a first portion mounted on a second side of the wrench body and a second portion provided with a driving head for mounting a socket;
- a ball movably mounted on the driving head of the drive member and pressed on the socket;
- a quick release mechanism mounted in the wrench body and operable to press the ball on the socket to lock the socket on the driving head of the drive member and to release the ball from the socket to unlock the socket from the driving head of the drive member;
- wherein
- the quick release mechanism includes:
- a bolt mounted between the drive member and the direction control mechanism;
- a movable rod movably mounted in the drive member and having a first end formed with a recess to retractably receive the ball and a second end provided with a shaft movably mounted in and protruded outward from the bolt;
- a press knob secured on the shaft of the movable rod to press the movable rod to move in the drive member;
- an elastic member mounted on the shaft of the movable rod and biased between the wrench body and the press knob;
- the bolt has an inside formed with an axially extended through bore to receive the shaft of the movable rod;
- the movable rod has a mediate portion formed with an annular shoulder that is movable to abut a distal end of the bolt to limit a further movement of the shaft of the movable rod in the through bore of the bolt.
11 more elements
A ratchet wrench, comprising:
- a wrench body;
- a ratchet wheel mounted in the wrench body;
- a direction control mechanism mounted on a first side of the wrench body and engaged with the ratchet wheel to control an operation direction of the ratchet wheel;
- a drive member having a first portion mounted on a second side of the wrench body and a second portion provided with a driving head for mounting a socket;
- a ball movably mounted on the driving head of the drive member and pressed on the socket;
- a quick release mechanism mounted in the wrench body and operable to press the ball on the socket to lock the socket on the driving head of the drive member and to release the ball from the socket to unlock the socket from the driving head of the drive member;
- wherein
- the quick release mechanism includes:
- a bolt mounted between the drive member and the direction control mechanism;
- a movable rod movably mounted in the drive member and having a first end formed with a recess to retractably receive the ball and a second end provided with a shaft movably mounted in and protruded outward from the bolt;
- a press knob secured on the shaft of the movable rod to press the movable rod to move in the drive member;
- an elastic member mounted on the shaft of the movable rod and biased between the wrench body and the press knob;
- the press knob includes a fixing seat secured on the shaft of the movable rod, a washer mounted on the shaft of the movable rod, and an urging seat mounted between the fixing seat and the washer and pressed on the second end of the elastic member.
10 more elements
Dependencies are inferred from the claim text.