Patent ID: 8646365
Filing Date: 2014-02-11
Classification: B25B,B25G,Y10T

Abstract:
1. A hand tool with adjustable swing angle, comprising: a first end and a second end connected with each other, the first and second ends containing a relative angle, which is adjustable; an upper wall section and a lower wall section disposed at the first end in parallel to each other, the upper and lower wall sections defining therebetween a space, a first splined hole being disposed on the upper wall section and formed with multiple splines on a circumferential wall thereof, a through hole being disposed on the lower wall section in alignment with the first splined hole, an annular groove being formed on a circumferential wall of the through hole; a second splined hole being disposed on the second end and formed with multiple splines on a circumferential wall thereof, the second end extending into the space of the first end and being positioned between the upper and lower wall sections, the second splined hole being positioned between the first splined hole and the through hole; an engagement member positioned in the two splined holes and movable between an engagement position and a release position within the two splined holes, the engagement member having an engagement section disposed at a top section thereof, multiple splines being formed on a circumference of the engagement section, the engagement member further having a body positioned under the engagement section, the body having a bulged section, a first locating section formed on an upper side of the bulged section and a second locating section formed on a lower side of the bulged section, the two locating sections having a diameter smaller than that of the bulged section; and an elastic restriction ring including at least two holding sections in parallel to each other and a surrounding section connecting the holding sections, the holding sections being spaced from each other by a distance smaller than the diameter of the bulged section, whereby the holding sections are capable of elastically outward expanding or restoring, the surrounding section of the elastic restriction ring being positioned in the annular groove of the lower wall section, the holding sections being positioned in the through hole, when the engagement member is moved between the release position and the engagement position, the holding sections of the elastic restriction ring being expanded by the bulged section, permitting the engagement member to move within the first and second ends, when the engagement member is upward moved to the engagement position, the engagement section being engaged with both the first and second splined holes and the holding sections of the elastic restriction ring being positioned at the second locating section, when the engagement member is downward moved to the release position, the engagement section being only engaged with the second splined hole and the holding sections of the elastic restriction ring being positioned at the first locating section, whereby when the engagement member is positioned in the release position, the relative angle contained between the first and second ends is adjustable, while when the engagement member is positioned in the engagement position, the relative angle contained between the first and second ends is fixed.