US 2013/0239757 A1Published application

Rotatable tool handle

AssigneeInfar Industrial Co., Ltd.

InventorI-Su CHEN

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Abstract

A rotatable tool handle comprises a first part and a second part which can be switched between an in-line position and an angle position. Further, the locking structure for fixing the first and second parts is disposed between the connecting structures of the first and second parts, so that the engaging points of the first and second parts lie on the rotation axis of the two parts. Moreover, the portion of the first part for forming the recess is harder than the rest of the first part, and the portion of the second part for forming the pivot portion is harder than the rest of the second part, so as to enhance the structural strength of the engaging structure of the first and second parts of the handle.

Claims12

Dependent claims

A rotatable tool handle comprising:

a first part formed with a first slanted end surface at one end thereof, the first slanted end surface being formed at a center thereof with a recess, a first engaging cavity being formed at a bottom of the recess;
a second part formed with a second slanted end surface at one end for mating with the first slanted end surface, the second slanted end surface being formed with a pivot portion to be inserted in the recess of the first part, at an end surface of the pivot portion being formed a second engaging cavity formed in the shape of the first engaging cavity, on a peripheral surface of the second part being defined an assembling cavity, and a penetrating hole being formed at a bottom of the second engaging cavity and extending to the assembling cavity, the first and second engaging cavities each including at least two pairs of opposite ends;
a control member movably disposed in the assembling cavity of the second part;
a pin including an operating end to be inserted in the penetrating hole of the second part and pushed against by the control member, and a drive end to be inserted in the second engaging cavity;
an engaging member formed in the shape of the first and second engaging cavities and engaged in the first engaging cavity, the engaging member being aligned with and capable of engaging with the second engaging cavity after the second part rotates 180 degrees;
an elastic member disposed between the engaging member and the first engaging cavity in such a manner that the engaging member is pushed against the drive end of the pin by the elastic member, and the pin is pushed by the control member to selectively keep the engaging member between the first and second engaging cavities or to push the engaging member back into the first engaging cavity.

3 more elements

A rotatable tool handle comprising:

a first part formed with a first slanted end surface at one end thereof, the first slanted end surface is formed at a center thereof with a recess, an annular groove being formed around an inner surface of the recess, a first engaging cavity being formed at a bottom of the recess, a receiving cavity being formed at a bottom surface of the first engaging cavity;
a second part formed with a second slanted end surface at one end for mating with the first slanted end surface, the second slanted end surface being formed with a pivot portion to be inserted in the recess of the first part, around a circumferential surface of the pivot portion being formed an annular groove to be aligned with the annular groove of the first part, at an end surface of the pivot portion being formed a second engaging cavity formed in the shape of the first engaging cavity, on a peripheral surface of the second part being defined an assembling cavity, and a penetrating hole being formed at a bottom of the second engaging cavity and extending to the assembling cavity, the first and second engaging cavities being cross-shaped and each having two opposite first ends and two opposite second ends, and the first ends being wider than the second ends;
a control member movably disposed in the assembling cavity of the second part;
a pin including an operating end to be inserted in the penetrating hole of the second part and pushed against by the control member, and a drive end to be inserted in the second engaging cavity;
a positioning member disposed between the annular grooves of the pivot portion of the second part and the first part to pivotally connect the first and second parts;
an engaging member engaged in the first engaging cavity and being cross-shaped and each having two opposite first ends and two opposite second ends, and the first ends being wider than the second ends, the engaging member being formed with a receiving cavity to be aligned with the receiving cavity of the first part;
an elastic member disposed between the engaging member and the receiving cavity of the first part in such a manner that the engaging member is pushed against the drive end of the pin by the elastic member and the pin is pushed by the control member to selectively keep the engaging member between the first and second engaging cavities or to push the engaging member back into the first engaging cavity.

4 more elements

Dependencies are inferred from the claim text.