| 摘要 |
An adapter for use with a drive tool such as a ratchet will enable a user to reach a fastener that is otherwise difficult to reach. The adapter includes a first drive member having a recess in a distal end for connection to the drive tool and, in the proximal end, a centre axial blind bore and a plurality of equally spaced blind bores radially spaced from the centre bore. A second drive member also has a means for connecting it at the distal end thereof to a socket or to a screwdriver bit. At its proximal end the second drive member has a centre axial blind bore and a plurality of equally spaced blind bores radially spaced from the centre bore. The drive members are connected together by a first bar having equal length cylindrical legs angled relative to each other, with each leg being rotatably received in a corresponding centre bore. A plurality of second bars, each having equal length cylindrical legs angled relative to each other, span the distance between the drive members, with the legs being slidably and rotatably received within corresponding radial blind bores of the drive members. As one drive member rotates on its axis the second bars cause the other drive member to rotate on its axis so as to impart rotation to the fastener being driven thereby.
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