Patent Application
20050198832
The present invention relates to clippers, and particular to a multi-functional engineering clipper which is especially used to cut steel plates, steel cables, and cables.
There are various kinds of multi-functional engineering clippers in the prior art. In one prior art, such as that disclosed in U.S. Pat. No. 5,974,670, “Milti-purpose Tool”, a multi-functional engineering clipper has a front cutting portion and a rear handle portion. The cutting portion has two pivotal shafts. A front end of each pivotal shaft has a knife end for cutting steel cables or iron cables. The rear end of each pivotal shaft is installed with a first knife portion and a second knife portion for cutting cables, nails or rivets. However, this prior art clipper cannot be used to cut iron plates or iron strips which frequently occur in engineering. Thereby, it is often that the user must prepare another one.
Although the second knife portion can be used to cut iron plates and iron strips, the cutting operation is inconvenient because the areas of iron plates are too large and the knives are faced inwards. It is very possible that that the iron plate is placed out of the second knife portion so that the iron plate must be relocated. This is unbeneficial from the viewpoint of ergonomics.
Accordingly, the primary object of the present invention is to provide a multi-functional engineering clipper which is used to cut steel plates, steel strips, nails, rivets, cables, iron strips, cables, etc.
To achieve above object, the present invention provides a multi-functional engineering clipper. The clipper comprises: a cutting portion and a handle portion; a plurality of screwing units for fixing the cutting portion with the handle portion; two pivotal portions being installed on the cutting portion; a front end of each pivotal portion being installed with a first knife portion; each first knife portion having a flat knife; the two flat knives being symmetrically arranged; a rear end of each pivotal portion being installed with a second knife portion; each second knife portion having a semi-round knife; the two semi-round knives being symmetrically arranged; and a rear end of each second knife portion being extended with a third knife portion; each third knife portion having a cambered knife.
The various objects and advantages of the present invention will be more readily understood from the following detailed description when read in conjunction with the appended drawing.
In order that those skilled in the art can further understand the present invention, a description will be described in the following in details. However, these descriptions and the appended drawings are only used to cause those skilled in the art to understand the objects, features, and characteristics of the present invention, but not to be used to confine the scope and spirit of the present invention defined in the appended claims.
Referring to
A rear end of each pivotal portion 11 is installed with a second knife portion 13. Each second knife portion 13 has a semi-round knife 131. The two semi-round knives 131 are symmetrically arranged. Each semi-round knife 131 is used for piercing cables.
Meanwhile, a rear end of each second knife portion 13 is extended with a third knife portion 14. Each third knife portion 14 has a cambered knife 141 for cutting iron ropes, or iron cables, etc.
In use, with reference to FIGS. 4 to 6, when cutting a steel plate 40, the steel plate is placed on the first knife portion 12 (referring to
The present invention is thus described, it will be obvious that the same may be varied in many ways. Such variations are not to be regarded as a departure from the spirit and scope of the present invention, and all such modifications as would be obvious to one skilled in the art are intended to be included within the scope of the following claims.
