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US 2006/0213334 A1Published application
Ratchet mechanism for ratchet tools
OwnerChang Leeinventor
Life of this patent
Estimating the term…
Abstract
A ratchet mechanism for a ratchet tool includes a driving member having teeth defined in an outer periphery thereof and a driving stub. A pawl is located beside the driving member and has a toothed surface for being engaged with the teeth of the driving member. A selection member is connected to the pawl. A substantially U-shaped first spring member and a substantially U-shaped second spring member are respectively connected to the head and the pawl is enclosed and clamped between the left biasing portions and the right biasing portions of the first and second spring members.
Claims4
A ratchet tool comprising:
- a head and a handle connected to the head, a hole defined in the head and a ratchet mechanism received in the hole, the ratchet mechanism including a driving member which includes teeth defined in an outer periphery thereof and a driving stub extending from a side of the driving member, a pawl located beside the driving member and having a toothed surface, a selection member pivotably connected to the head and connected to the pawl to engage the toothed surface with the driving member, a cover mounted to the head and having an aperture through which the driving stub extends, and
- a substantially U-shaped first spring member and a substantially U-shaped second spring member respectively connected to the head, each of the first and second spring members having a left biasing portion and a right biasing portion, the pawl being clamped between the left biasing portions and the right biasing portions.
Dependencies are inferred from the claim text.