초록 ▼

A pivotal driving tool includes a socket having a non-circular cavity formed by three or more planer side walls, and having an inner retaining ring. A mandrel includes a driving shank having a non-circular cross section for engaging into the socket, to allow the socket to be rotated by the mandrel.

A pivotal driving tool includes a socket having a non-circular cavity formed by three or more planer side walls, and having an inner retaining ring. A mandrel includes a driving shank having a non-circular cross section for engaging into the socket, to allow the socket to be rotated by the mandrel. The mandrel includes a narrowed neck portion to allow the mandrel to be pivoted relative to the socket, and one or more flat surfaces to solidly anchor the driving shank to the socket. A magnetic member may be disposed in the mandrel, to act on and to pull the driving shank into the cavity of the socket. A barrel may be slidably engaged onto the socket, to engage onto and to be disengaged from the mandrel.

대표청구항 ▼

I claim: 1. A pivotal driving tool assembly comprising: a first component including a first end having an engaging device provided thereon, and including a second end having a cavity formed therein and having a non-circular cross section defined by at least three planer side walls, said first compo

I claim: 1. A pivotal driving tool assembly comprising: a first component including a first end having an engaging device provided thereon, and including a second end having a cavity formed therein and having a non-circular cross section defined by at least three planer side walls, said first component including an inner peripheral groove formed in said second end thereof, distal to said engaging device, said first component including at least one depression formed therein, a retaining ring engaged in said inner peripheral groove of said first component, a second component including a first end having a driving shank provided thereon and having a non-circular cross section defined by at least three curved side walls, for engaging into said non-circular cavity of said first component, said at least three curved side walls of said second component being engageable with said at least three planer side walls of said first component, to allow said first component to be rotated and driven by said second component, said second component including at least one spring biased projection provided therein and engageable with said at least one depression of said first component, to anchor said driving shank of said second component to said first component, said second component including a narrowed neck portion provided in a middle portion thereof and close to said driving shank thereof, to allow said second component to be pivoted relative to said first component, and to allow longitudinal axes of said first and said second components to be pivoted relative to each other to different angular positions, said second component including at least one flat surface formed in said middle portion thereof, and arranged to have said narrowed neck portion located between said at least three curved side walls and said at least one flat surface thereof, to selectively engage with said at least three planer side walls of said first component, and to solidly anchor said driving shank of said second component to said first component, a magnetic member disposed in said first component, for acting on and for selectively pulling said driving shank of said second component into said cavity of said first component, and a barrel slidably engaged onto said first component, and movable relative to said first component, to selectively engaged onto and disengaged from said second component. 2. The pivotal driving tool assembly as claimed in claim 1, wherein said engaging device of said first component is an engaging hole formed in said first end of said first component. 3. The pivotal driving tool assembly as claimed in claim 1, wherein said engaging device of said first component is a driving stem extended from said first end of said first component. 4. The pivotal driving tool assembly as claimed in claim 1, wherein said second component is a mandrel. 5. The pivotal driving tool assembly as claimed in claim 1, wherein said second component includes a peripheral shoulder formed in said middle portion thereof, and arranged to engage with said second end of said first component, and to solidly anchor said driving shank of said second component to said first component. 6. The pivotal driving tool assembly as claimed in claim 1, wherein said first component includes a space formed therein to receive said magnetic member. 7. The pivotal driving tool assembly as claimed in claim 1, wherein said first component includes a positioning ring engaged thereon, said barrel includes at least one inner peripheral recess formed therein, to receive said positioning ring, and to limit said barrel to slide relative to said first component. 8. The pivotal driving tool assembly as claimed in claim 7, wherein said first component includes an outer peripheral groove formed in an outer peripheral portion thereof, for engaging with said positioning ring.