US2883229A - Pickaroon with a removable point - Google Patents

Description

April 21, 1959 A. w. JUNTUNEN I PICKAROON WITHA REMOVABLE POINT Filed Aug. 16. 1954 III/I1 IIII INVENTOR. ARTHUR w. JUNTUNEN BY M/W AGENT PICKAROON WITH A REMOVABLE POINT Arthur W. Juntunen, Brimson; Minn. Application August 16, 1954, Serial No. 450,201

4 Claims. Cl. 294-17 This invention relates to pickaroons such as are used by loggers and the like for moving pulpwood and logs during logging operations.

Pickaroons have long been used by woodsmen as a convenient means for gripping logs for moving same. A Woodsman can readily roll, lift or slide a log if he has a good pickaroon to work with.

Pickaroons which are in common use, however, have one great drawback in that their points break very frequently. The points must necessarily be slender in order to sink into the wood to provide the grip necessary for the movement of the logs, and because of theirslenderness and the heavy work they are required to do they frequently break. Pickaroons break most frequently during the winter time at extremely low temperatures when wood is frozen solid. The metal seems to break more readily in extremely cold temperatures such as 20 and 30 below zero. When a woodsmans pickaroon breaks, he is severely handicapped and cannot work as efiiciently or safely as he can with his pickaroon. A Woodsman normally carries only one pick'aroon, of course, because they are bulky and he has other equipment to carry and he cannot carry a spare of all of his tools, and thus the breaking of his pickaroon causes him to be handicapped.

Pickaroons are conventionally made of a single: piece of metal and forged to shape so that when a point breaks, a new point must be made either by drawing out the metal of the old point and shaping same, which results in a shorter point; or, by making a new point and welding same on to the old shank of the pickaroon. These are relatively costly and time consuming operations for the points are normally hand forged by a lumber camp blacksmith.

It is one of the principal objects of my invention to provide a pickaroon having a removable point whereby a pickaroon may be quickly repaired if the point portion thereof should break. 7

Another object is to provide a removable point for a pickaroon which is relatively small so that a spare can readily be carried in ones pocket, glove compartment of his vehicle, or on any vehicles which service logging equipment, or the like.

Another object is to provide a pickaroon and removable point therefor wherein the point may be quickly changed yet a sturdy connection is provided between the point and shank of the pickaroon so that efliciency of operation is not impaired because of shakiness of the removable point.

Another object is to provide means for securing a removable point on a shank of a pickaroon in a secure and easily removable manner.

Another object is to provide a tapered seat in a pickaroon shank to receive a portion of the removable tip, the seat portion of the removable tip being tapered similarly to the seat in which it is received to provide for a solid and secure seating of the point for proper frictioning of the tool.

ited htates Patet "ice Another object is to provide an opening through the shank of a pickaroon adjacent the inner end of the pickaroon point to permit its being driven loose from its seat within the shank.

Another object of my invention is to provide a pickaroon having three major pieces for convenience of construction.

These and other objects and advantages of my invention will become more apparent as the description proceeds.

In the accompanying drawing forming a part of this application Fig. 1 is a side elevational view of a pickaroon made in accordance with my invention.

Fig. 2 is an end view of Fig. 1 with the point removed.

Fig. 3 is a perspective view of the removable point for my invention.

Fig. 4 is an edge view of Fig. 1.

Fig. 5 is a vertical sectional view of Fig. 1 showing the mounting of the point in the tool shank.

Fig. 6 is a broken side elevational view of a modified form of my invention.

Fig. 7 is a vertical sectional view of the point portion of the tool shown in Fig. 6 to illustrate the mounting thereof.

In the drawing the reference numeral 1 indicates the handle for a pickaroon which preferably comprises a conventional ax handle, or the like. The tool shank 2 is fitted on the end of the handle 1 in a conventional manner.

The tool shank 2 is preferably made up of a sleeve portion 3 made of fiat bar iron, or the like, and bent: to form an eye 4 to receive the handle 1, see Fig. 4. The ends of the bar metal are bent together and welded as at 55 to the tool receiving portion 6.

The tool receiving portion preferably includes a socket member 7 having an elongated tapered seat 8 therein. The seat 8 is preferably circular in contour for convenience in manufacture, and is elongated so that a taper may be provided which will permit the secure seating of the tapered shank 9 of the tool point ltl.

The inner end of the socket or seat 8 is provided with a slot 11 to receive the key portion 12 on the inner end of the tool point 10 to prevent the rotation of the tool point 10 within the socket 8.

The socket member 7 is preferably slit as at 13 and provided With a pair of wing-like projections or lugs 14 and 15, one on each edge of the slit 13. The wing or lug 14 is formed integral with the portion 6 of the tool shank 3 and the Wing or lug 15 extends from the socket portion 7 but is separated or free-floating therefrom as shown in the drawings so as to form, in conjunction with the Wing 14, a means to clamp or squeeze the socket member 7 around the shank of the tool point 10.. A clamping bolt 16 is provided to permit the clamping of the tool point 10 in the socket 8, the tool shank having a cylindrical shape as at 30 and the socket being similarly shaped as at 31 in the area where the clamping takes place to insure a firm grip on the shank. The clamping bolt has a lock washer 17 thereon to prevent accidentally loosening of the clamping bolt when the tool is in use.

As can be readily seen from the drawing, a point 16 may be readily inserted in the socket 8 with the corre sponding tapers of the shank 9 and seat 8 forming a solid seat for the point on the tool shank 3. By tightening the clamping bolt 16 the point 10 is held securely in operating position on the tool shank, and the key 12 prevents rotation of the tool in the shank.

If the tool point should be broken, it may be readily removed by loosening the clamping bolt 16 to release the grip on the tool at the areas 30 and 31 permitting the tool point to be removed.

In the event the tool point should become firmly seated in the socket 8 because of long use of the tool before the point breaks, I have provided an opening 18 transversely through the shank 3 of the tool into which opening the key 12 of the tool point extends, as shown in Figures 1, 5, 6, and 7. This arrangement permits the tool point 10 to be 'driven loose by inserting another point, a screw driver, or any suitable instrument into the opening 18 to drive the tool point loose from its seat.

In Figs. 6 and 7, a modified form of my invention is shown wherein the tool receiving portion 6 is provided with an externally threaded portion 19, to receive an internally threaded nut 20. The portion 6 is provided for an internal tapered seat 21 corresponding to the seat 8, and the tool shank '9 is similarly tapered to be received in the seat 21. i

The tool point 10 is preferably provided with an opposed taper 22 extending from the tapered portion 9 in the opposite direction or toward the point 23 of the tool. The nut 20 has a tapered seat 24 which receives the tapered portion 22, and by tightening the nut 20 the tapered portion 9 is securely seated in the socket 21.

The removement of the nut 20 will permit the tool point to be removed in the same manner as above described.

The above described structure will overcome the disadvantages in conventional pickaroons, and will provide for greater convenience and efliciency for woodsmen handling logs.

Having thus described my invention, what I claim is:

1. A pickaroon comprising, a handle, a shank mounted on said handle, said shank having a tool-receiving portion extending therefrom at substantially right angles to the handle, a split socket extending at right angles to said handle Within said tool-receiving portion, said socket including a tapered seat portion and a non-tapered clamping portion disposed outwardly of said tapered seat portion relative to said shank and aligned with said tapered seat portion and communicating therewith, said tapered seat portion being of the same diameter at its point of communication with said non-tapered portion and diminishing in size inwardly therefrom, a tool point having a shank of similar contour to said socket and having a tapered end portion receivable in said tapered seat portion and having a non-tapered intermediate portion receivable' in said clamping portion of said socket, and means for clamping said tool point within said clamping portion of said socket when so disposed.

2. A pickaroon comprising, a handle, a shank mounted on said handle, said shank having a tool-receiving portion extending outwardly at substantially right angles to the handle, a split socket extending longitudially of and within said tool-receiving portion and at right angles to said handle, said socket including a tapered seat portion and a cylindrical clamping portion disposed outwardly of said seat portion relative to said shank, said tapered and cylindrical portions being aligned and communicating with each other and being of the same size at their point of communication, said tapered seat portion diminshing in size toward said handle, a tool point having a shank of similar contour to said socket and having a tapered end portion snugly mounted within said seat portion of said socket and having a cylindrical intermediate portion mounted within said clamping portion of said socket, and

means clamping said shank portions within said socket at said cylindrical portions to preclude longitudinal shifting of said tool point relative to said socket.

3. In a pickaroon, a shank having a sleeve portion constructed and arranged to be mounted upon a handle adjacent one end portion thereof, said shank also having a tool-receiving portion extending therefrom at substantially right angles to the axis of said sleeve portion and ineluding a socket member, said socket member extending at substantially right angles to the axis of said sleeve portion and having an inwardly disposed tapered seat portion and an outwardly disposed non-tapered end portion relative to the axis of said sleeve portion, said tapered seat portion and said non-tapered end portion being aligned and communicating with each other and being of the same size at their point of communication, and a tool point having a tapered inner end portion diminishing in size toward its extrcmeinner end receivablein said tapered seat portion of said socket and having a nontapered intermediate portion receivable in said clamping portion of said socket, and means for clamping said tool point at its cylindrical portion Within said socket when so disposed.

4. In a pickaroon, a shank having a sleeve portion constructed and arranged to be mounted upon a handle adjacent one end portion thereof, said shank also having a tool-receiving portion extending therefrom at substantially right angles to the axis of said sleeve portion and including a socket member extending at substantially right angles to the axis of said sleeve portion, said socket member having relative to the axis of said sleeve portion an inwardly disposed tapered seat portion and an outwardly disposed clamping portion having cylindrically shaped clamping surfaces, said seat portion and said clamping portion being aligned and communicating with each other, said seat portion diminishing in size towards the axis of said sleeve portion, a tool point having a shank with a tapered end portion tapered correspondingly to said seat portion of said socket member and being of the same size and mounted snugly therewithin, said tool point having a cylindrical intermediate portion of the same size as said clamping portion of said socket member and mounted between said clamping surfaces, and means clamping said shank portions within said socket at said cylindrical portions to preclude longitudinal shifting of said cylindrical portions of said tool point relative to said socket.

References Cited in the file of this patent UNITED STATES PATENTS 144,808 Walton Nov. 18, 1873 366,959 Hornig July 19, 1887 486,732 Morrison et a1 Nov. 22, 1892 815,758 Starret Mar. 20, 1906 983,859 Gottvald Feb. 7, 1911 1,056,920 Lovering Mar. 25, 1913 1,190,786 Merritt July 11, 1916 1,571,062 Peavey Jan. 26, 1926 1,885,089 Dukes Oct. 25, 1932 2,265,580 Serge Dec. 9, 1941 FOREIGN PATENTS 447,445 France Oct. 28, 1912

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