US2263247A

US2263247A - Body repair tool

Info

Publication number: US2263247A
Application number: US334215A
Authority: US
Inventors: Raisanen Toivo
Original assignee: Individual
Current assignee: Individual
Priority date: 1940-05-09
Filing date: 1940-05-09
Publication date: 1941-11-18
Anticipated expiration: 1958-11-18

Description

Nov. 18, 1941.

BODY REPAIR TOOL Filed May 9, 1940 T. RAISANEN 2,263,247

Patented Nov. 18, 1941 UNITED STATES PATENT OFFICE 2,263,241 BODY REPAIR TOOL Toivo Raisanen, Grand Rapids, Mich Application May 9, 1940, Serial No. 334,215

5 Claims. (01. 153-32)" This invention relates to a novel construction of tool to be used in the repair of automobile bodies.

As a result of heavy motor vehicle trafic and the accidents that occur therefrom, the bodies and fenders of automobiles many times are indented and crushed, and the repair of the bodies, particularly the sheet metal parts thereof has become a rather large business. The inward indentation and crushing of the sheet metal is common and'the outward return of such sheet metal to its original position is many times difficult to do, particularly as a great many parts of the body thus injured are hard of access."

It is an object and purpose of the present invention to provide a tool which is a form of pressing headand which may be detachably connected with a hydraulic or other fluid pressure apparatus and which, placed against the inwardly indented sheet metal, may be operated to force the metal outward to its initial position. More specifically, the tool which I have devised is of a special form and construction so that the parts which immediately engage the sheet metal to be worked may be entered at places heretofore hard of access. And further with the construction of pressing tool which I have devised, it may be worked over a relatively large area of the sheet metal without moving the abutment against which the fluid pressure apparatus is placed at one end, so that with one position against a selected abutment'and with f the tool which I have devised used with the hydraulic apparatus a much greater area of the metal may be worked back to position than heretofore.

An understanding of the invention may be had from the following description, taken in connection with the accompanying drawing, in which,

Fig. l is an elevation showing the tool in use with the hydraulic apparatus for pressing outwardly inwardly indentedsheet metal parts of the top of an automobile body.

Fig. 2 is a fragmentary similar view somewhat enlarged showing the use of the tool at one place which is hard to be reached.

Fig. 3 is a side elevation of the tool illustrating its manner of detachable connection to the rod or ram of the hydraulic apparatus.

Fig. 4 is a plan View looking downwardly upon the tool shown in Fig. 3, and

Fig. 5 is a fragmentary section showing the pivotal connection of the immediate metal en- Like reference characters refer to like part a in the diiferent figures of the drawing. The tool which I have devised includes a shank I made of relatively heavy steel bar stock which at one end is enlarged and screw threaded as at:

2. The shank, a distance from the screw threaded portion 2-, is curved at an angle to the axisof.

the shank l, which angle in the "specific disclosure made approximates 120, therebylproviding an integral laterally turned section 3. which at its free end has its under portion cut away and is formed into an ear having a periph-: ery in the arc of a circle as shown best in Fig. 4. Shoulders 5, one at each end of the curved pe riphery of the ear 4, are made adjacent the end of the section 3, also best shown in Fig. 4.

An elongated head 6 is provided .with an ear 1 to pass underneath the ear 4, a pivotscrew 8 passing through the ears to pivotally connect the end of the shank of the head. The upper side of the head 6 is recessed to receive the ear 4 and the head 6 carries shoulders 9 which may come against the shoulder 5 when the head 6 is turned a predetermined distance in either direction. At the upper side-of said head 6 the metal is serrated as at ll], preferably inclining in the direction toward the supporting shank while at the free longitudinal edge of said head 6 it is provided with teeth or serrations ll. As

shown, those to one side of the pivot 8 are inclined in a direction opposite to those at the other side, both series of teeth H inclining toward the median line between the ends of the head. As a variation in construction instead of the. teeth in one side all inclining in one way and those at the other side inclining oppositely, alternate teeth at the free edge of the head may be inclined in opposite directions.

This tool is adapted to be detachably connected by screwing the part 2 into an internally threaded socket l2 on the end of a ram l3 which enters a cylinder l4 and has a piston at its inner end (not shown) within said cylinder which may be forced outwardly through a fluid pressure conducted into the cylinder through a pipe or hose l5 controlled by a manually operated valve l6. At the opposite end of the cylinder a rod I1 is connected.

One use of my invention is shown in Fig. 1. The body H3 at an upper corner thereof has been crushed or indented inwardly as at l9. This is a quite common type of injury to automobile bodies. The lower end of the rod II, which in practice is divided or bifurcated, is placed against gaging head of the tool with the shank thereof. 55 an abutment provided by the head or nut 20 of one of the bolts which secures the body to the chassis frame. The ram I3 is operated to move it outwardly until the head 6 engages against the indented metal at IS. The serrations H] provide a biting engagement suficient to preclude slipping of the metal of the head against that of the body. Then by moving the ram I3 outwardly by the entrance of more of the hydraulic pressure fluid into the cylinder 14, the inwardly pressed or indented metal at H! is forced outwardly. The whole apparatus may be swung in a clockwise or counter-clockwise direction about the abutment at 20 as a center, and likewise, may be swung laterally so that with the one positioning of the rod l1 against its abutment, a relatively large area of the inwardly crushed or indented portion of the body may be treated. This lateral movement of the head 6 is permitted because of its pivotal connection in the manner described to the shank of the tool. As it is swung laterally the head turns about the pivot at 8 and the length of the head may be kept parallel to the length of the body over the range which the head may take in swinging from a position in which one of the shoulders 9 engages a shoulder to another position where the opposite shoulders 9 engage the other shoulder 5.

In Fig. 2 is shown how, by reason of the curved form of the shank on which the head is mounted, that said head may be carried over into a trough such as indicated at 2| at the side of the body immediately above the door; and the serrated free edge of the head 6 brought against the metal which would otherwise be hard to reach and the indented metal ironed out to original position.

Of course it is to be understood that there are a great many other places where the tool may be used to reach portions of the body which are hard to be reached. The tool connected to the hydraulic fluid pressure ram may be disposed in many positions within the body and the rod I! brought against many different lower parts of the body to serve as abutments therefor. For example, when a top is crushed in at its upper side the fluid pressure apparatus with the tool connected may be positioned vertically and the crushed in portion of the body forced upwardly.

This accessory tool has been used very successfully in commercial repair of automobile bodies and has been manufactured and sold to others engaged in such business. It is of course to be understood that the shank of the tool is of a strong and rigid steel construction and that the head is also of steel preferably hardened to withstand wear. The shank also may be heat treated to increase its strength.

The invention is defined in the appended claims and is to be considered comprehensive of all forms of structure coming within their scope.

I claim:

1. A tool of the class described comprising, a shank bent between its ends to provide an extension located at an angle to the length of the major portion of said shank, and a head pivotally mounted at the free end of said extension to turn about an axis located at right angles to the longitudinal axis of said extension, said head being elongated ina direction transverse of and lying partly to each side of said pivotal axis, and having converging upper and lower sides toward the free edge thereof as specified.

2. A construction containing the elements in combination defined in claim 1, the upper side of said head adjacent its free edge being provided with a plurality of upwardly extending serrations.

3. A construction containing the elements in combination defined in claim 1, said head at its free longitudinal edge having a plurality of spaced serrations, all of said serrations being inclined to the said edge of the head, part of said serrations being inclined in a direction opposite to the remainder thereof.

4. A body pressing tool comprising, an elongated shank bent between its ends to provide an extension located at an angle of approximately to the length of the major portion of the shank, said extension terminating in an ear having a periphery in the arc of a circle, an elongated head with the length thereof disposed transversely of the axis of said extension, said head at its rear portion having a recess to receive said ear on the shank, a pivot pin extending through said ear and said head whereby the head may be turned to a plurality of angles with respect to the shank, the free edge of said head being located substantially in a single plane and being of less thickness than the remainder thereof.

5. A construction containing the elements in combination defined in claim 4, said shank at opposite sides of the ear thereon and said head at opposite sides of the recess therein having cooperating shoulders permitting swinging pivotal movement of the head to and between predetermined extreme positions of movement with respect to said shank.

TOIVO RAISANEN.