US2464118A

US2464118A - Automobile repair tool

Info

Publication number: US2464118A
Application number: US710114A
Authority: US
Inventors: Guy A Countryman
Original assignee: Individual
Current assignee: Individual
Priority date: 1946-11-15
Filing date: 1946-11-15
Publication date: 1949-03-08
Anticipated expiration: 1966-03-08

Description

March 8, 1949.

G. A. COUNTRYMAN Filed Nov. 15, 1946 all 9114. C0 zzzzi'rym an Gttornegs Patented Mar. 8, 1949 UNITED STATES ?ATNT OFFICE AUTOMOBILE REPAIR TOOL Guy A. Countryman, Ashland, Ohio Application November 15, 1946, Serial No. 710,114

4 Claims.

The invention relates to tools adapted to be used in combination with a pressure device, such as a jack for straightening and bending sheet metal members such as automobile bodies, fenders,

doors, hoods and the like.

It is present practice, in the repairing of automobile bodies, fenders and the like, to provide body tools comprising a pressure applying strut member adapted to be operatively connected to a pressure producing device, such as a hydraulic jack, screw jack or the like, and having a tool in the form of a pressure head detachably connected to the end of the strut member for contacting a portion of the automobile body, fender or the like to straighten or bend the same.

It is sometimes necessary in the operation of such tools to apply the pressure of the head directly against a painted or finished surface which may be marred or scratched thereby.

The object of the present invention is to provide such a body tool having a pressure applying head covered with a suitable soft, flexible material, such as rubber, to prevent marring the finish of the automobile body or other sheet metal member against which it is applied.

Another object is to provide a tool of this character having a convex, substantially semispherical pressure head entirely covered with a soft resilient pad of rubber or the like.

A further object is to provide a pressure applying head of this character in which a peripheral flange or shoulder is formed at the inner side of the metal head and the peripheral portem of the rubber pad or cover is provided with an annular rib or channel adapted to fit over the same.

A still further object is to provide a pressure applying head of this character which may be in the form of a hollow metal casting having an internally screw threaded neck for detachable connection to a pressure applying strut, the head portion proper being convex and substantially semi-spherical and covered with a resilient pad of rubber or the like.

Another object is to provide a hollow, substantially semi-spherical rubber pad or cover for the pressure applying head having means thereon for detachably mounting it upon the metallic head.

A further object is to provide a simple, inexpensive, and durable pressure head of the character referred to, Which is elficient in use and which will not mar or scratch surfaces against which it is applied.

The above objects together with others which will be apparent from the drawing and following description, or which may be later referred to, may be constructed in the manner hereinafter described in detail and illustrated in the accompanying drawings in which;

Figure 1 is a perspective view of a hydraulic jack showing oppositely disposed tubular pressure applying struts connected to the base and the ram thereof and having a pressure applying head embodying the invention detachably connected to the outer end of each strut;

Fig. 2 a longitudinal, sectional view through a pressure applying head embodying the invention;

Fig. 3 a bottom plan View of the head shown in Fig. 2;

Fig. 4 a 1ongitudina1 sectional view through a modified form of the pressure applying head; and

Fig. 5 a bottom plan view of the head shown in Fig. 4.

Referring first to Figure 1 of the drawing, two of the improved pressure applying heads to which the invention pertains are indicated at Ill and I I, detachably connected to opposite ends of the tubular pressure applying struts l2 and I3 respectively, which are shown detachably connected to the base Hi and ram [5 of a hydraulic jack respectively, the cylinder of the jack being indicated at It and is arranged to be operated as by the pump I! manually operated by the hand lever 18.

In the operation of this assembly the pressure applying heads It and II are placed against opposed portions of the automobile body, or other structure, to be straightened and by manual operation of the pump [l by the handle [8 thereof, the hydraulic jack is operated to move the ram l5 thereof outwardly forcing the pressure applying struts i2 and E3 in opposite directions and applying pressure against the objective portions of the automobile body through the pressure applying heads it and II.

Referring next to the pressure applying head shown in Figs. 2 and 3, the head may be in the form of a hollow casting is, of steel or other suitable material of sufiicient strength. The head comprises the convex, substantially semi-circular pressure applying head portion 20 having the annular rim shoulder or bead 2| around its periphery and terminating in the reduced, inwardly disposed tubular neck 22, internally threaded as at 23 for detachable connection to the threaded outer ends 24 of either of the tubular pressure applying struts IL. or l3.

For the purpose of protecting a painted or finished surface of automobile bodies, fenders or the like, against which the pressure applying head may be applied, a soft resilient pad 25 of rubber or the like, entirely covers the convex surface 26 of the head, being preferably thicker at its central portion, as indicated at 27 and terminating in the inturned annular channel or rib 28 adapted to be hooked over the rim shoulder or bead 2! of the metal head so as to snugly hold the rubber pad upon the metal head.

In Figs. 4 and 5 is shown a slightly modified form of pressure applying head, this form being especially applicable to heads of smaller diameters. In this case the head lfia is also in the form of a hollow metal casting having the substantially semi-spherical head portion proper 20a with convex surface 26a terminating in the an.- nular shoulder 21a, and provided with the inwardly disposed tubular neck 22a provided with the internal screw threads 23a.

The rubber pad 25a is of hollow, substantially semi-spherical form, so; as to fit snugly upon the convex surface 26a of. the metal head, and is preferably thicker at its central portion, as indicated at 21a, and terminates in the annular inturned member 28a for engagement over the annular shoulder 2Ia of the metal head.

From the above it will be obvious that a simple and efficient pressure applying head is provided, having a substantially semi-spherical surface for contact with an automabile body or other sheet metal part to be straightened or bent so as not to form any sharp ridge or cut therein and provided witha, removable pad of rubber, or other suitable soft resilient material, for applying pressure against painted or finished surfaces so as not to scratch or mar the same.

I claim:

1.. Apparatus for bending and straightening sheet meta1 members, comprising a pressure applying strut, a pressure applying head connected to the outer end of the strut, said head having a-convex forward outer surface and an aim rearwardly disposed shoulder and a forwardly disposed annular channel atthe inner side thereof, andv a. substantially semi-spherical hollow rubber covering fitting entirely over the convex outer surface of the head and having an inturned annular channel at its inner side fitting snugly over the annular shoulder on the head and terminating in a forwardly disposed bead extending into the. forwardly disposed. annular channel in the 3- detachably connected to said screw threads on the strut and having a convex forward outer surface and an annular rearwardly disposed shoulder and a forwardly disposed annular channel at the inner side thereof, and a substantially semi-spherical, hollow rubber covering fitting entirely over the convex outer surface of the head and having an inturned annular channel at its inner side fitting snugly over the annular shoulder on the head and terminating in a forwardly disposed bead extending into the forwardly disposed annular channel in the head.

3. Apparatus for bending and straightening sheet metal members, comprising a pressure applying strut, a pressure applying head connected to the outer end of the strut, said head having a convex forward outer surface and an annular rearwardly disposed rib and a forwardly disposed annular channel at the inner side thereof, and a substantially semi-spherical, hollow rubber covering fitting entirely over the convex outer surface of the head and having an inturned annular channel at its inner side fitting snugly over the annular rib on the head and terminating in a forwardly disposed bead extending into the forwardly'disposed annular channel in the head.

4. Apparatus for bending and straightening sheet metal members, comprising a pressure applying strut having screw threads at its outer end, a pressure applying head having a threaded neck detachably connected to said screw threads on the strut and having a convex forward outer surface and an annular rearwardly disposed rib and a forwardly disposed annular channel at the inner side thereof, and a substantially semispherical, hollow rubber covering fitting entirely over the convex outer surface of the head and having an inturned annular channel at its inner side fitting snugly over the annular rib on the head and terminating in a forwardly disposed bead extending into the forwardly disposed annular channel in the head.

GUY A. COUN'IRYMAN.

Number Name 887,663 Lee May 12, 1908 2,093,284 Mandl Sept. 14, 1937 2,103,095 Schermerhorn Dec. 21, 1937 2,200,133 Mandl May 7, 1940