1. Field Of Invention
The present invention relates to a wrench and, more particularly, to a wrench equipped with various sockets.
2. Related Prior Art
A conventional wrench includes a shank and at least one boxed end or open end. Hence, wrenches of various sizes are needed to rotate nuts or threaded bolts of various sizes.
A socket wrench kit includes a handle and a set of sockets of various sizes. Thus, a socket wrench kit is adequate for rotating nuts or threaded bolts of various sizes. It however requires a box to store the handle and the set of sockets of various sizes.
Therefore, the present invention is intended to obviate or at least alleviate the problems encountered in prior art.
It is the primary objective of the present invention to provide a wrench that is useful for rotating nuts or threaded bolts of various sizes.
To achieve the foregoing objective, the wrench includes a handle and two sub-wrenches. The handle includes a shank and two pairs of prongs. Each pair of prongs is formed at a corresponding end of the shank. The prongs of each pair are separated from each other by a gap. Each of the sub-wrenches includes a lever and two pair of sockets. The lever of each of the sub-wrenches is placed between and pivotally connected to a corresponding pair of prongs. Each of the sockets is transversely formed at a corresponding end of the lever and made with a hexagonal cavity of a unique size. Thus, the wrench is adapted for rotating nuts or threaded bolts of eight different sizes.
Other objectives, advantages and features of the present invention will be apparent from the following description referring to the attached drawings.
The present invention will be described via detailed illustration of four embodiments referring to the drawings wherein:
Referring to
Each sub-wrench 40 includes a lever 42 and two pairs of sockets 46. Each socket 46 is transversely formed at a corresponding end of the lever 42. The lever 42 includes an aperture 44 made therein. Each socket 46 includes a hexagonal cavity 48 of a unique size. In each pair of sockets 46, the hexagonal cavities 48 are in communication with each other along an axial direction. Thus, each sub-wrench 40 can be used to rotate nuts or threaded bolts of four different sizes. Hence, the wrench 10 can be used to rotate nuts or threaded bolts of eight different sizes. Each sub-wrench 40 is pivotally connected to a corresponding bifurcate end of the handle 20 by inserting a pin 12 in the aperture 44 made in the lever 42 thereof and the apertures 28 made in the prongs 24 of the corresponding bifurcate end of the handle 20.
Each sub-wrench 40 can be kept in position by a corresponding positioning unit 30. Each positioning unit 30 includes a detent 32, a spring 34, a bore 36 and two recesses 38. The detent 32 is in the form of a ball. The bore 36 is made in the flat face 23 of one of the prongs 24 of the corresponding bifurcate end of the handle 20. Both of the detent 32 and the spring 34 are inserted in the bore 36 so that the detent 32 is biased by the spring 34. The recesses 38 are made in a side of the lever 42 of the corresponding sub-wrench 40. The detent 32 of each positioning unit 30 can be inserted in one of the recesses 38 made in the lever 42 of the corresponding sub-wrench 40 to retain the corresponding sub-wrench 40 in one of two positions relative to corresponding bifurcate end of the handle 20.
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The present invention has been described via the detailed illustration of the illustrated embodiments. Those skilled in the art can derive variations from the illustrated embodiments without departing from the scope of the present invention. Therefore, the illustrated embodiments shall not limit the scope of the present invention defined in the claims.