US3522850A - Cultivating tool - Google Patents

Description

Aug. 4, '1970 E. FEDE 3,522,850

,l GULTIVATING TOOL Filed Jan. 22. 1968 x RIG. J

/ .F.'fG.2 44

d INVENTO 36 4 0 .-522 EPH/QA/M P505 BY M, M4,

A T TOPPA/EVS 3,522,850 CULTIVATING TOOL Ephraim Pede, 4332 Regent St., Duluth, Minn.

Filed Jan. 22, 1968, Ser. No. 699,656 Int. Cl. A01b 1/00; B20g 3/00 U.S. Cl. 172-376 2 Claims ABSTRACT OF THE DISCLOSURE SUMMARY OF THE INVENTION The invention relates to a hand cultivating tool and more particularly to such a tool having a ground engaging cultivating hand piece mounted on the end of a long handle. In known hand cultivators the blade of the cultivating head is diicult to insert into the earth, and it is diicult to draw the blade through the earth to cultivate the same due to the formation and disposition of the blade.

It is an object of the invention to provide a hand cultivator having a blade that is substantially a true circular band member, the circular formation allowing easy insertion into the earth and easy drawing of the blade through the earth with a minimum of resistance. It is a further object to provide a circular band-like blade which is formed from a single piece of elongated flat metal stock, the clamping means of the cultivator holding the blade piece in a true circular formation.

These and other more detailed and specific objects will be disclosed in the course of the following specification, reference being had to the accompanying drawings, in which- FIG. 1 is a side elevational view of a cultivating tool embodying the invention.

FIG. 2 is a top plan view thereof.

FIG. 3 is a front elevational view.

FIG. 4 is a sectional view on the line 4-4 of FIG. 3.

FIG. 5 is a sectional View on the line `5 5 of FIG. l.

FIG. 6 is a perspective view of the blade member prior to its being formed and positioned in the clamping member.

Referring to the drawings in particular, the cultivating tool A includes the bracket 10. The bracket 10 includes the tapered tubular receiver portion 12 which receives the tapered end 14 of the handle 16 in jamming engagement therein. The bracket 10 further includes the head 18 which includes the base portion 20 and the angularly disposed arm portion 22 depending therefrom. The arm and head portions are normal to the axis of the receiver 12. The lower outer edge of the arm portion is arcuate as at 24, and the arm portion 22 is disposed to the base portion at approximately a forty-five degree angle.

" nited States Patent O flce The numeral 26 designates a clamping member formed of the arcuate base portion 28 which has formed on the upper convex surface thereof the recess 30. The lower concave surface of the base 28 is formed with the channel 32 which extends throughout the length of the base 28. 'I'he arm portion 22 is positioned in the recess 30 and welded to the base 28 as at 31. The channel 32 defines the outer arcuate flange portions 34 and 36 which are coterminous therewith. Formed centrally of the channel 32 and extending outwardly from the bottom thereof is the threaded stem portion 38.

Further provided is the clamping piece 40 which is arcuate and formed on the same radius as the channel 32. The clamping piece is of a width whereby the same fits within the channel 32. The clamping piece 40 has formed centrally therethrough the hole 42 through which the threaded stem portion 38 extends.

The numeral 44 designates a blade member which is formed of one piece of flat elongated ribbon metal stock. The blade member 44 is formed into substantially a perfect circle formation and positioned in the channel 32 with the free end 46 thereof abutting the threaded stem 42 and the other free end abutting the threaded stem 42 on the opposite side thereof. The clamping piece 40 is placed in the channel 32 with the threaded stem 38 extending through the hole 42 thereof. A nut 48 with washer S0 is drawn up upon the clamping piece 40 thereby securely clamping the ends of the blade member 44 between the arcuate member 40 and the arcuate base member 28, and due to the arcaute clamping surfaces of members 40 and 28 the blade 44 is held in substantially a perfect circular formation.

It is understood that suitable modifications may be made in the structure as disclosed, provided such modiications come Within the spirit and scope of the appended claims. Having now therefore fully illustrated and described my invention, what I claim to be new and desire to protect by Letters Patent is:

1. A cultivating tool comprising:

(a) a bracket having a head portion,

(b) a cutting blade including a circular band member,

(c) means clamping said cutting blade on said head member,

(d) means mounting a handle on said head member,

(e) said head portion of said bracket including a base portion and (f) an arm portion disposed at an angle to said base portion (g) said clamping means including an arcuate base formed on said arm portion,

(h) an arcuate calmping piece,

(i) means drawing said arcuate clamping piece upon said blade positioned between said arcuate clamping piece and said arcuate base in clamping engagement,

('j) said means drawing up said clamping piece upon the blade including a threaded stem on said arcuate base extending radially therefrom through an opening in said arcuate clamping piece, and

(k) nut means on said stem,

(l) said clamping means including an arcuate channel formed in said arcuate base having a radius parallel to the radius of the base and extending longitudinally thereof said threaded stem located within said arcuate channel, said arcuate clamping piece having the same 3 radius longitudinally thereof as said channel, said blade and said arcuate clamping piece positioned in said channel.

2. The device of claim 1 in which said circular band member of said blade is formed of a fiat piece of material with the free ends thereof positioned in said channel in opposed relation under said arcuate clamping piece extending longitudinally thereof.

References Cited UNITED STATES PATENTS 1,534,659 4/1925 Peet et al. 172-376 FOREIGN PATENTS 12/ 1921 Great Britain. 2/ 1952 Great Britain.

ROBERT E. BAGWILL, Primary Examiner S. C. PELLEGRINO, Assistant Examiner U.S. Cl. X.R.

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