US2742945A

US2742945A - Attachment for frame straightening machines

Info

Publication number: US2742945A
Application number: US267171A
Authority: US
Inventors: Le Roy V Jacobsen
Original assignee: Bee Line Co
Current assignee: Bee Line Co
Priority date: 1952-01-18
Filing date: 1952-01-18
Publication date: 1956-04-24
Anticipated expiration: 1973-04-24

Description

April 1956 LE ROY v. JACOBSEN 2,742,945

ATTACHMENT FOR FRAME STRAIGHTENING MACHINES 2 SheetsSheet 1 Filed Jan. 18, 1952 INVENTOR. LEROY V. JACOBSE/V BY ATTORNEY A ril 24, 1956 LE ROY v. JACOBSEN 2,742,945

ATTACHMEN FOR FRAME STRAIGHTENING MACHINES Filed Jan. 18, 1952 2 Sheets-Sheet 2 L 5 3? 30 K .L l l 0 t I 1 26 I I I z 25 2 4 2/- j /A/: I Z Q 4 1 i K 30 Q l B:-

IN V EN TOR. A B L LEROY v. JACOBSEN ATTORNEY 2,742,945 I v ATTACHNIENT FOR FRAME STRAIGHTENING MACHINES Le Roy V. Jacobsen, Durant, Iowa, assignor to Bee-Line Company, Davenport, Iowa, a copartnership Application January 18, 1952, Serial No. 267,171

Claims; (Cl. 15332) This invention relates to the motor vehicle art and more particularly to mechanism for straightening motor vehicle frames. It is well known that, for various reasons, the frames of motor vehicles become misshapen and need to be put back into correct form. Preferably this can be done by pulling one part of the frame with relation to another part. It is desirable to be able to pull or push one member of the frame with relation to another, and it is in connection with this problem that I am now dealing.

In the drawings annexed hereto and forming a part hereof,

Fig. 1 shows a broken plan view of one arrangement of my apparatus;

Fig. 2 is a similar view of this apparatus, taken from a different position;

Fig. 3 is a sectional elevation of the apparatus of this invention;

Fig. 4 is a sectional elevation of the apparatus of this 1 United States Patent "0 invention with the parts arranged for pulling or pushing longitudinally of the frame;

Fig. 5 shows an attachment for adapting this invention to cars having the wider frames;

Fig. 6 shows in plan view the structure shown in Fig. '5;

Fig. 7 shows a sectional elevation similar to Fig. 4 but with a part rotated ninety degrees (90), this sectional elevation being approximately on the plane indicated by the line 7-7 in Fig. 1; and

Fig. 8 shows various directions in which pushing and pulling may be done with the present apparatus and illustrates the universality thereof.

Reference will now be made in greater detail to the annexed drawings for a more complete description of this invention. This frame straightening mechanism includes a pair of longitudinal beams, after the order of the beams 16 of Smith Patent No. 1,993,387, except that they are rectangular in cross-section, instead of circular as in the above mentioned-Smith patent. These frame beams are designated by the reference numeral 1, and the mechanism of this invention is held to the beams by U-shaped clips 2. These clips are tightened by wedges 3 and held in place thereby. Some of these clips may be provided with ears 4 and, if desired, the ears may be omitted, although they are preferred.

Each clip 2 has a circular hole 5 in the top thereof for the reception of a rotatable post 6 which is rotatable in the clip 2 by reason of the fact that the post 6 has a circular shoulder 7, and the square section of the post 6 is provided with a hole for the reception of a pin 8 which holds the post assembled with a box 9. When the wedge 3 is driven in tightly, the clip 2 is tightened against the head or enlargement 10, which prevents turning thereof. The box 9 is preferably welded to sliders 11 which slidably receive

bars

12 and 12a, which may be pulled or pushed in either direction longitudinally. At an end of each

bar

12 or 12a there is a box 13 or 13a for reception of an abutment, either 14 or 14a, which is to engage automobile frame members.

A jack 15 is placed between the

bars

12 and 12a and,

when operated, it pulls or pushes, depending upon the specific arrangement. When the arrangement is as shown in Fig. 1, with

blocks

16 and 17 connected, respectively, to the

bars

12 and 12a, the

abutments

14 and 14a will be pulled inwardly, whereas, when the arrangement is as shown in Fig. 2, the abutments will be pushed out. The block 16 is provided with pairs of

holes

18 and 19 for the reception of a pin 20 to secure the block 16 to the

bar

12 or 12a by a pin 20.

A bridge 21 connects the sliders 17 to which it is welded. This bridge 21 serves as an abutment for the jack 15, and the pin 20 connects the sliders 17 to the bar 12a. The opposite end of the jack bears against the bridge 22, which is connected to the sliders 16, which are connected to thebar 12 by a pin 20. Consequently, as the jack 15 is extended, the

sliders

16 and 17 are separated, with the result that the

bars

12 and 12a are moved in opposite directions and the

abutments

14 and 14a are pulled toward each other. This is the operation of the apparatus as shown in Fig. 1.

The operation of the apparatus as shown in Fig. 2 will next be described; The slider 17 is omitted and the jack 15 is placed on or in slider 16 with the end 23 of jack 1S against'box 13a. This results, when the jack 15 is operated, in pushing the bar 12 against box 13 and box 13a in the opposite direction, moving the abutment outwardly so as to spread the side frame members of the motor vehicle sideways. If the

bars

12 and 12a are placed lengthwise of the beams 1; between parts of the motor vehicle needing to be spread or drawn together, the apparatus will be effective to produce the desired result.

If the wedges 3 are not forced in tightly, the U-shaped clip will not be drawn down against the head 10, and the post 6 can therefore be turned to any position desired. Since the post 6 is square, the box 9 can be turned in any direction, and the pushing and pulling can be in any direction, as shown by the lines A-A and B-B in Fig. 8, which shows that the apparatus is universal.

If it is desired to use this apparatus on a motor vehicle having a wider frame than usual, an attachment 25 may be secured to a pair of ears 4, or, if the frame is unusually wide, the clips 2 may be turned so that the ears 4 are directed in the opposite direction and the attachment 25 will extend in opposite directions. A post 26 extends through the attachment 25, and a post 27 provided with a wing 28 rises from the post 26. The post 27, as shown in Fig. 6, is square for the attachment of the box 9. The wing 28 is secured to the post 26 by a pin 29. Pins 30 are used to secure the attachment 25 to the ears 4.

It is of course understood that the specific description of structure set forth above may be departed from without departing from the spirit of this invention as disclosed in this specification and as defined by the appended claims.

Having now described my invention, I claim:

1. An attachment for a frame straightening machine for acting upon a motor vehicle, said frame straightening machine 22 having a plurality of beams, clips for securing said attachment to the beams of said machine, said clips having circular holes, rectangular posts with circular enlargemen ts received in said holes and turnable to various positions of adjustment when the clips are loosely held, boxes held by said posts, sliders secured to said boxes, a bar slidable through each of said sliders, other boxes on the bars, secured to said bars, abutments in said other boxes for acting upon parts of a motor vehicle, other sliders on said bars, bridges on said other sliders, one bridge being secured to one slider, another bridge being secured to the other slider, and a jack reacting between the bridges. 1

2. An attachment for a frame straightening machine for acting upon the frame of a motor vehicle, a clip for attachment to the frame of the machine to fasten said attachment thereto, said clip having a pair of ears, an attachment connected to said ears, a circular hole in a side of the clip at a right angle to the side carrying the cars, a post of angular cross-section provided with a circular shoulder fitting within the circular hole, a box fitting around the post, a pair of bars, sliders fixed to the box and each slidable on one of the bars, and a jack reacting with the other bar in causing relative longitudinal motion of one of the bars, said ears having a bracket supported thereby, and thereby being capable of adding to the width of the frame straightening machine.

3. An attachment for a frame straightening machine for acting upon the frame of a motor vehicle, said machine having a frame, a clip for attachment to the frame of the machine to secure said attachment to said frame, said clip having a pair of cars, a bracket receivable between said ears and pinned thereto at the side of the frame of said machine, said bracket having a circular hole therethrough, a first post of circular cross-section secured in said bracket, a second post of angular cross-section having an ear receivable in the first post and adapted to receive a box of angular form, and sliders secured to the second post, whereby the width of said machine may be increased to accommodate a motor vehicle of wider width.

4. An attachment for a frame straightening machine, for correcting the form of a motor vehicle, said machine having a frame, a clip for securing the attachment to the frame of the machine, a post having a square body and a circular enlargement projecting through a circular hole in the clip, a circular enlargement below the first enlargement forming a shoulder which is engaged between the clip and frame, means clamping the clip to the frame with said shoulder therebetween to hold the post against turning, a box surrounding the square body of the post and fitting the same closely, other boxes secured to an end of each bar, an abutment in each of said last named boxes, sliders secured to the first named box, and bars slidable in said sliders to vary the distance between said other boxes.

5. An attachment for a frame straightening machine for acting upon the frame of a motor vehicle, comprising first and second bars arranged in side-by-side relation and closely spaced apart and each having an outer end remote from the outer end of the other, a first box secured to the first bar adjacent to the outer end thereof and carrying first abutment means for engaging a vehicle frame, a second box secured to the second bar adjacent to the outer end thereof and carrying second abutment means for engaging a vehicle frame in spaced relation to the first abutment means, means interconnecting the bars for lengthwise sliding of one bar relative to the other and including a slider slidably engaging the second bar and pinned to the first bar, and means for moving the bars relative to each other and including a jack acting against the second box and reacting against the slider whereby extension of the jack causes the second box, second abutment means and second bar to move in one direction and the slider and the first bar, together with the first box and first abutment means to move in the opposite direction.

References Cited in the file of this patent UNITED STATES PATENTS 1,326,953 Morano Jan. 6, 1920 1,993,387 Smith Mar. 5, 1935 2,013,785 Merrill Sept. 10, 1935 2,422,030 Merrill June 10, 1947 2,547,757 Le Roy Apr. 3, i950