DISPOSITIF EXTRACTEUR DES GAZ D'ECHAPPEMENT DE VEHECULES A TUYAU D'ECHAPPEMENT VERTICAL

DEVICE FOR SUCKING OUT EXHAUSTS FROM VEHICLES HAVING UPWARDLY DIRECTED EXHAUST PIPES

Abrégé anglais

Abstract
Device for sucking out exhausts from vehicles having upwardly
directed exhaust pipes.
The present invention relates to a device for sucking out
exhausts from vehicles having upwardly directed exhaust pipes (11).
In order to provide an efficient and in certain aspects automatically
operating device a nozzle (8), movable along an exhaust track (1),
comprises an exhaust pipe connection (10) which permits connection
of the exhaust pipe (11) to the nozzle for bringing it along
therewith when the exhaust pipe moves along the track and which
permits disconnection of the exhaust pipe from the nozzle when said
nozzle reaches a certain point on the track.

Revendications

The embodiment of the invention in which an exclusive
property or privilege is claimed are defined as follows:
1. A device for sucking out exhausts from vehicles having
upwardly directed exhaust pipes comprising a nozzle movable
along an exhaust track, said nozzle having an inlet downwardly
open and open to at least one sidewards direction for receiving
and catching the vehicle exhaust pipe, at least one movable
coupling means formed in said nozzle for releasably engaging
said vehicle exhaust pipe for maintaining their normal
positions when the exhaust pipe in a connecting position
engages said coupling means to permit the nozzle to follow the
exhaust pipe along the exhaust track and for releasing the
exhaust pipe when the nozzle reaches a certain position, said
coupling means having means to automatically reset into its
normal positions after releasing the exhaust pipe.
2. A device according to claim 1 in which at least one of the
track and nozzle is movable in a sideways direction relative to
the longitudinal direction of said track for lateral adjustment
in relation to a moving exhaust pipe.
3. A device according to claim 2 in which the exhaust track is
displaceably suspended on wheel alighting gears for movement in
a sideways direction.
4. A device according to claim 3 in which the said nozzle is
pivotally suspended for swinging movement in sideways
directions.
5. A device according to claim 1, 2 or 3 in which the said
nozzle has fixed coupling portions to permit passage of the
exhaust pipe from one direction only relative to the nozzle.

6. A device according to claim 1, 2 or 3 in which the nozzle
has releasable coupling pipe means to engage both sides of the
exhaust pipe when said pipe is connected to the nozzle to
permit passage of the exhaust pipe in opposite directions
relative to the nozzle.
7. A device according to claim 1, 2 or 3 in which the
releasable coupling means comprise coupling arms which may
swing aside when the coupling means are struck by the exhaust
pipe.
8. A device according to claim 1, 2 or 3 in which the nozzle
comprises converging guide rails for providing a wide inlet for
the exhaust pipe.
9. A device according to claim 1, 2 or 3 in which at least one
releasing device is provided along the exhaust track and is
adapted to release the coupling means of the nozzle when said
nozzle reaches said releasing device.
10. A device according to claim 1, 2 or 3 in which the nozzle is
connected to a tubular portion of a carriage movable along the
exhaust track.

Description

~2~5325`
The present invention rela~es to a device for
sucking out exhaus~s from vehicles having upwardly directed
exhaust pipes.
It is noted that prior art devices for sucking
out exhausts from vehicles are useless or at least unsuitable
for vehicles having upwardly directed exhaust pipes.
The object of the present invention is therefore
to provide by simple means, an efficient and in certain
aspects automatically operating device for sucking out
exhausts from vehicles having upwardly directed exhaust
pipes. This is made possible while the present device
has the characterizing features defined in the following
clai~ 1.
The invention will be further described below
with reference to the accompanying drawings, wherein fig.
1 is a side view of a device according to the invention,
mostly in section; fig. 2 is a section along the line
II-II in fig. l; fig 3 is a side view of an alternative
embodiment of the device according to the invention; fig.
4 is a plan view of a second alternative embodiment of
a device according to the invention; and figs. 5A - 5C
schematically illustrate various situations when using
the device according to the invention.
In fig. 1, a flue 1 is illustrated having the
shape of a so called exhaust track which down below is
provided with sealing lips 2 that engage each other for
sealing the track. The sealing lips 2 may temporarily
be brought apart by means of an exhaust receiving carriage
3 for passing exhausts into the track 1 via said carriage
3. The carriage 3 is suspended on the track 1 (not shown)
and the track is mounted in the ceiling via wheel alighting
gears 5, permitting the track 1 to move perpendicular
to its longitudinal axis.

12~S3ZS
-- 2 --
The exhaust receiving carriage 3 is down below
provided with a terminal tube 6 to which a nozzle 8 is
connected via a connecting device 9. The nozzle 8 has
an exhaust pipe connection 10 for cooperation with an
upwardly directed exhaust pipe 11 on a vehicle (not shown).
In the embodiment of fig. 1, the exhaust pipe connection
10 comprises on one hand a wall portion 12 of the nozzle
8 and on the other hand two spring-loaded coupling arms
13, 14. Each coupling arm 13, 14 is pivotally mounted
on the nozzle 8 via axes 15, 16 and outside these axes,
the coupling arms 13, 14 are affected by spring means
17, 18 which constantly try to swing inner portions 19,
20 of said arms 13, 14 towards the wall portion 12.
By means of said spring means 17, 18, the coupling
arms 13, 14 may swing aside when a vehicle moves along
the track 1 and the exhaust pipe 11 thereof reaches said
coupling arms 13, 14. The ~xhaust pipe 11 will move relative
to the nozzle 8 until it strikes the wall portion 12,
whereafter said nozzle 8 is forced to follow the exhaust
pipe 11 until the vehicle stops. From that moment the
exhaust pipe 11 reaches the nozzle 8, the exhausts therefrom
are sucked into the nozzle 8 and via said nozzle and the
carriage 3 passed to the track 1 and therefrom to a suitable
area or purifying plant.
When the vehicle moves in the opposite direction
(e.g. when driving out from a garage 21; see figs. 5A-5C),
the exhaust pipe 11 will strike the coupling arms 13,
14. Because of the force of the springs 17, 18, these
can not swing aside and the nozzle 8 is forced to follow
the exhaust pipe 11. Hereby, the exhaust pipe 11 will
move towards one end of the track 1 (e.g. at the garage
door 22) and a buffer 23 arranged at said end~ The nozzle

~21~;32S
~ 3 --
8 will be stopped immediately ~y said ~uff~r 23, whereby
the load of the exhaust pipe 11 on ~he coupling arms 13,
14 is momentarily increased t~ a high extent such that
the springs 17, 18 yield and the coupling arms 13, 14
may swing aside and release the exhaust pipe 11. Hereby
exhausts have been sucked away via the nozzle until the
vehicle has reached a certain area (e.g. the garage door)
and at the same time, the nozzle 8 has been displaced
to a receiving position (see fig. 5A) for recei~ing the
exhaust pipe 11 of a vehicle to be moved along the t~ack
1 (e~g. into the garage 21).
When a vehicle is driven into the garage 21
via the garage door 22 (arrow A, flg. 5A), the exhaust
pipe 11 thereof will move into the~nozzle 8 or strike
one of two guide rails 24 extending forward/outwards from
said nozzle 8 and preferably resilient. If the vehicle
continues in direction A into the garage 21, the exhaust
pipe 11 will, through its load on one guide rail 24, draw
the track 1 in the direction of arrow B (see fig. 5B)
until the exhaust pipe 11 has reached the wall portion
12 of the nozzle 8. Thereafter, the exhaust pipe 11 will
move the nozzle 8 along the tra'ck 1 until the vehicle
has reached the desired position (see fig. 5C) in the
garage 21 or corresponding place.
While the exhaust track 1 is movable sideways
(via the wheel alighting gears 5), the exhaust pipe 11
of the vehicle may itself "draw the nozzle correct" also
if the vehicle is not driven into the garage 21 with the
exhaust pipe 11 positioned straight before the nozzle

1~S3~5
-- 4
Instead of or in com~ination with arranging
the track 1 movable in sideways direction, the nozzle
8 may be pivotable in sideways direction. To enable this,
the exhaust receiving carriage 3 has an axis 25 (see fig.
3) arranged parallel with the track 1 and on which the
nozzle 8 is pivotally mounted via a collar 26 extending
into the connecting tube 6. In order to provide sufficient
sealing, a flexible hose 27 is threaded onto the connecting
tube 6 and a corresponding portion of the nozzle 8.
Instead of or as an alternative to the above-
mentioned embodiments, the nozzle 8 may be pivotally arranged
on the exhaust receiving carriage 3 such that it may pivot
around a vertical axis (not shown) when it is loaded by
the exhaust pipe 11.
At the nozzle 8 of fig. 4, the exhaust pipe
connection comprises two pairs of coupling arms 13, 14
instead of one pair of coupling arms 13, 14 and the wall
portion 12 which thus has been deleted. The other pair
of coupling arms 13, 14 is reversely arranged and the
nozzle has two substantially identical but reverse inlets/outlets
for the exhaust pipe 11.
This nozzle embodiment permits movement of the
exhaust pipe 11 into and out from the exhaust pipe connection
10 from two opposite sides, which means that a vehicle
can drive into a local through a gate, bring the nozzle
along therewith through the local and pass out through
another gate, where the nozzle strikes a buffer (not shown).

~Z153ZS
-- 5 --
Thereafter, a vehicle may drive through the second gate
and bring along the nozzle to the first gate or the nozzle
may be automatically displaced between the gates by means
of a special driving device (not shown).
As ana--Lt~na-~iveor complement to the plant
described above, a releasing device (not shown) may be
arranged within the area of movement of the nozzle 8 for
cooperation with the exhaust pipe connection 10 such that
said connection is released for disengaging the nozzle
8 when reaching the releasing device. The releasing device
is preferably adjustable for releasing the exhaust pipe
connection or not, and if said connection has coupling
arms 13, 14, it may ~e designed to affect these arms.
The invention is not limited to the above embodiments,
butmay vary within the scope of the following claims.
Thus all details shown may have different shapes. The
nozzle 8 may e.g. have another design without loosing
its suckingf~n~on and the exhaust pipe connection 10
may have another shape than in the drawings. This applies
also on the guide rails 24 and the connecting device 9
(which is only schematically shown in fig. 1).
The nozzle 8 is through the exhaust track 1
connected to an exhaust suction device, e.g. a fan, which
is not shown while such arrangements are already known
and the device according to the invention may be used
wherever exhaust suction from upwardly directed exhaust
pipes is required, e.g. in garages, work shops, storages,
fire stations, etc.