DISPOSITIF DE TRACTION SUR ELEMENT TRAVERSANT

BODY PULLING DEVICE

Abrégé anglais

ABSTRACT OF THE DISCLOSURE
A body pulling device for pulling out an indented
part of a body comprises a movable carriage. A rod-like
pulling member is mounted on the carriage. A hydraulic
device mounted on the carriage selectively moves the
pulling member in directions along its axis. A magnet
is affixed to one end of the pulling member for releasable
coupling to a body in an area to be pulled. Braces
mounted on the carriage abut against the body around
the area to be pulled to provide a counter-force.

Revendications

The embodiments in which an exclusive property
or privilege is claimed are defined as follows:
1. A body pulling device for pulling out an indented
part of a body, said body pulling device comprising
a movable carriage;
a rod-like pulling member mounted on the
carriage;
hydraulic means mounted on the carriage for
selectively moving the pulling member in directions
along its axis, said hydraulic means including a hydraulic
cylinder a piston in the cylinder and a piston rod ex-
tending from the piston and functioning as the pulling
member;
magnetic means affixed to an end of the
pulling member for releasable coupling to a body in an
area to be pulled; and
bracing means mounted on the cylinder of
the hydraulic means for abutting against the body around
the area to be pulled to provide a counter-force.
2. A body pulling device as claimed in Claim 1, wherein
the bracing means includes at least a pair of adjustable
arms each affixed at one end to the cylinder of the
hydraulic means and abuttable at the other end against
the body.
3. A body pulling device as claimed in Claim 2, wherein
each of said arms comprises a plurality of telescopically
adjustable members, each affixed at one end to the hy-
draulic cylinder and having its other end engagable with
the body.

4. A body pulling device as claimed in Claim 3 including
a second hydraulic means mounted on said carriage and
having said first mentioned hydraulic means mounted thereon
for supporting said first hydraulic means at selected
levels above said carriage.

Description

D~S~,RI:~rIO~ OF THE IN~ ~ION
The present invention relates to a body pulling
de~ice. More particularly, the invention relates to
a body pulling device for pulling out an indented part
of 2 bod~.
Gb~ects of the invention are to provide a body
pulling de~rice of simple structure, which is inexpensive
in manufacture, eliminætes the need for drilling holes
in ~ body, eliminates the need for welding pull~ng
st~æps to a body, is operated with convenience and
~acility, and functions efficiently, effectively ænd
reliably to pull out an indented part of a body, suc~
as, for example, an automotive vehicle.
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; In order that the invention may be readily carried
into effect, it will now be described with re~erence to
the accompanying drawing, wherein:
FIG. 1 is a side view of an embodiment of the
body pulling device of the invention,
FIG. 2 is a top view of part of the body pulling
device of the invention and a circuit of the body pulling
device; and
FIG, 3 is a view of some of the wheels of the
bsdy pulling device of the in~ention,
In the ~IGS., the same components are identi~ied
. by the same reference numerals,
: The body pulling device of the invention pullæ
out an indented part of a body 1, ~uch as the body of an
` automobile or other metal object~
The body pulling device of the invention comprises
a movable carriage 2 (FIG. 1), A rod-like pulling member
3 (FIGS. i and 2) ls mounted on the carr~age 2. A hydraulic
I devlce 4 of any suitable type is mounted on the carr~age
20 2 for selectively moving the pulling member 3 in directions
. along its axiæ 5 (FIG, 1). The hydraulic device may thus
include a hydraulic cylinder 6, A piston 7 (F~G. 2) is
provided in the cylinder 6. A piston rod extending from
the piston 7 functions as a pulling member 3.
An electromagnet 8 is affixed to an end 9 of the
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pulling member 3 for releasable coupling to the body 1
in the area 10 thereof to be pullea.
Braces are mounted on the carriage 2 for abutting
against the body 1 around the area 10 to be pulled to
provide a counter-force. The brace~ include at least
a pair of telescopically mounted arms 11 and 12 (FIG~ 2).
Each of the arms 11 and 12 is affixed at one end 13 and
14, respectively (~IG, 2) to ~he hydraulic device 4 and
is abuttable at the other end 11 and 1?, respectively,
against the body 1.
As shown by broken lines in FIG. 1, telescopically
' mounted arms 15 are affixed at one end 16 to the carriage
2 and are affixed at the other end 17 to the hydraulic
device 4 thereby movably supporting the hydraulic device
at selected levels above the carriage.
In the circuit of FIG. 2, a source of electrical
energy 18 energizes a pump 19 which controls the flow of
hydraulic fluid in the hydraulic device 4, The source
of energy 18 also energizes the electromagnet 8 via a
, 20 trans~ormer 20,
The electromagnet 8 has a plurality of changeable
heads for various shapes and sizes of dents and creases
in an automobile body. The heads are preferably of disc-
like configuration and are thick enough to withstand
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pressure. The heads may be affixed to the electromagnet
by any suitable coupling means such as, for example, a
hitch-type coupling with a twin spring latch for the
heads. The head may be threadedly coupled to the electro-
magnet.
While the inven~ion has been described by means
of a specific example and in a specific embodiment, I do
not wish to be limited thereto, for obvious modifications
will occur to those skilled in the art without departing
from the spirlt and scope of the invention.
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