Wireworking – Joining wire – Implements
Patent
1987-02-17
1988-08-09
Larson, Lowell A.
Wireworking
Joining wire
Implements
140 93A, 140 57, B21F 902
Patent
active
047621540
DESCRIPTION:
BRIEF SUMMARY
The present invention relates to an apparatus capable of automatically performing, following a manual or mechanical actuation, the strapping of superposed elongated bodies in either a parallel or axially angled relationship.
More particularly, by the term "strapping of elongated bodies" the binding of reinforcing rods, bars, strips, angle iron, pipes, shafts and the like by means of relatively rigid wire-like elements of any kind of material is intended.
At present, this kind of strapping is performed by the manual winding of one or more pieces of iron wire or cord around the articles of the above mentioned kind and then twisting, with the eventual help of a suitable tool, for instance a pair of pliers or nippers, the ends of said pieces of iron wire or cord.
From the above it clearly derives that, with the method of operation above described, the strapping operation in question is time-consuming and fatiguing for the operator, upon whose personal skill the execution time, the efficiency of the result and the dimensioning with a minimum waste of the pieces of iron wire or cord used, all depend.
In other words, the operation in question performed in this way according to the prior art, may be considered in general entirely uneconomical, both from the point of view of the man-hour costs and that of the cost of the strapping material as a consequence of said unavoidable waste.
The aim of the present invention is to provide an apparatus capable of performing automatically the operation of strapping superposed elongated bodies of the abovementioned kind with an appreciable reduction of execution time as well as of the waste of strapping material, thus avoiding the abovementioned inconveniences deriving from the performance of said strapping operation according to the conventional practice presently in use.
The adoption of the apparatus of the present invention makes it possible to obtain, among other things, the following advantages: the operator and of his physical and mental efficiency; operation.
The present invention will be better illustrated hereinafter by the disclosure of preferred embodiments thereof referred to as non limitative examples, with reference to the attached drawings, wherein:
FIG. 1 is a perspective view showing schematically the principle of operation of a first embodiment of the apparatus in question;
FIG. 2 is a perspective view showing schematically the result of the strapping operation performed according to the principle of operation shown in FIG. 1 of the first embodiment of the apparatus in question;
FIG. 3 is a perspective view of the first embodiment of the apparatus in question;
FIG. 4 is a partially sectional view taken along lines IV--IV of FIG. 5, FIG. 6 and FIG. 7;
FIG. 5 is a partially sectional view taken along lines V--V of FIG. 4 and of FIG. 8;
FIG. 6 is a sectional view taken along lines VI--VI of FIG. 4 and of FIG. 8;
FIG. 7 is a sectional view taken along lines VII--VII of FIG. 4 and of FIG. 8;
FIG. 8 is a partial sectional view taken along lines VIII--VIII of FIG. 5, FIG. 6 and FIG. 7;
FIG. 9 is a sectional view taken along line IX--IX of FIG. 6;
FIG. 10 is a sectional view taken along line X--X of FIG. 9;
FIGS. 11 and 12 are perspective views which show schematically the operating principle of a second embodiment of the apparatus in the case of superposed bodies in an axially angulated relationship and in an axially parallel relationship;
FIGS. 13 and 14 are perspective views which show schematically the result of the strapping operation performed according to the operating principle shown in FIG. 1 and in FIG. 2, wherein the rotatable system of four clamp elements is schematized;
FIG. 15 is a perspective view of the second embodiment of the apparatus in question;
FIG. 16 is a partial sectional view taken along lines XVI--XVI of FIG. 18 and FIG. 19;
FIG. 17 is a partial sectional view taken along lines XVII--XVII of FIG. 19;
FIG. 18 is a partial sectional view taken along lines XVIII--XVIII of FIG. 16, FIG. 17, FIG. 19, and FIG. 21;
FIG. 19 is a partial sectional vi
REFERENCES:
patent: 3169559 (1965-02-01), Working
patent: 4362192 (1982-12-01), Furlong et al.
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