Patent ID: 8381621
Filing Date: 2013-02-26
Classification: B25B

Abstract:
1. A hand tool alternately-magnetizing structure comprising: a body defining a central axis, and having a handle portion at a section and an operation portion at an opposite section; wherein the handle portion defines at least one recess dented along a radical direction thereof; at least one magnetic component received in the recess of the handle portion, and including a resilient member and a magnetic member in sequence; wherein the magnetic member defines an effective magnetic field within predetermined confines; the magnetic member moves outwards by the impetus of the resilient member, so that the effective magnetic field of the magnetic member is of radical motion; and an adjustment ring sleeved onto the handle portion of the body and being capable of angular displacement; an interior wall face of the adjustment ring abutting against an exterior wall face of the handle portion of the body, and the adjustment ring defining at least one switchable portion dented at the interior wall face for corresponding to the recess of the handle portion of the body; a front end of the magnetic member exposing out of the recess of the handle portion to abut against the switchable portion of the adjustment ring; the switchable portion describing an adjacent section and an outlaying section, wherein a wall thickness defined at the adjacent section is greater than that defined at the outlaying section; whereby as the outlaying section of the switchable portion is set to align with the recess of the handle portion due to the angular displacement, the magnetic member of the magnetic component moves outwards along the radical direction to partially go into the outlaying section of the switchable portion so that the effective magnetic field of the magnetic member reaches an extramural area, which situates out of the handle portion; on the contrary, when the adjacent section of the switchable portion is set to align with the recess of the handle portion due to the angular displacement, the magnetic member of the magnetic component moves inwards along the radical direction so that the effective magnetic field of the magnetic member fades into an intramural area, which situates inside the handle portion; due to the radical motion the effective magnetic field of the magnetic member, the hand tool presents an alternate-magnetism effect thereby.