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Патент USA US2110942

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March l5, 1938.
E. PIQUEREZ
2,110,942
ROLLER CONVEYER
Filed oct. 25, 1955
N
___
4 Sheets-Sheet l
March 15, 1938.
E. PIQUEREZ
' ROLLER
2,110,942
CONVEYER
Filed Oct. 23, 1935
4 Sheets-Sheet 2
March 15, 1938.
E. PIQUEREZ
2,110,942
ROLLER CONVEYER
Filed oct. 25, 19.35 .
~ Fm. 4`
4 Sheets-Sheet 5
March 15, 19939»,
E. PlQUEREZ
2,110,942
ROLLER CONVEYER
Filed oct. 25, 1955
4 Sheets-Sheet 4
2,119,942
Patented Mar. 15, 1938
UNITED STATES PATENT @FFE
2,110,942
ROLLER CONVEYER
Emile Piquerez, St. Cloud, France
Application october 23, 1935, serial No. 46,438
In France October 31, 1934
7 Claims.
I have made applications for patents in France,
(Cl. 104-135)
part, in which the rollers are free on their axles,
i'iled the 31st October 1934 and in Great Britain » that is, are not driven and on which the vehicles
ñled the 27th March 1935.
_
The present invention relates to apparatus for
5 transporting loads, in which a series of rollers
with horizontal axles are driven mechanically
and are rotated about their axles in such a way as
to transport the loads deposited upon their upper
surfaces.
10
The invention relates more particularly to ap~
paratus of the above type used for transporting
vehicles, and especially automobile vehicles, in
Washing and servicing installations.
The improved apparatus forming the subject
15f of this invention preferably comprises two paral
lel horizontal conveyers, one receiving the right
hand wheels and the other the left-hand wheels
of the vehicle, the length of the conveyers being
such that the successive operationsl of cleaning,
2O drying or other services can be effected during the
displacement of the vehicle from one extremity
to the other of the conveyer.
'
According to the present invention the convey
ing apparatus is characterized by the following
‘g3 features alone or in combination, viz:
Each roller included in the conveyer has a
sprocket fixed thereto and all the sprockets of the
same conveyer are driven by a single chain, the
driving part of which engages with all the
3c sprockets.
The chain returns from the sprockets of the
end rollers, in such a way that the slack return
reach of the chain does not engage with the
sprockets of the intermediate rollers.
One of the end rollers is actuated by a motor
means and drives the working chain in such a
direction that the upper stretch of the chain
drives the other rollers.
Guiding elements are disposed above each pin
4o ion and impose on the chain a slightly curved
course in such a way that it engages with several
teeth of the same pinion.
A tensioning device is arranged on the slack
part of th-e chain.
Each set of rollers is arranged between two
longitudinal beams supporting bearings for the
roller axles. The rollers are integral with their
respective axles which turn in the bearings, and
pass through and extend outwardly beyond at
50 least one of the said beams. The portions oi the
4,5
axles outside the beam are each provided with a
driving sprocket.
The chain and the various sprockets are en
55
closed by a water-tight casing.`
The conveyer is prolonged by a non-working
come to a stop.
'
The rollers of the non~working part of the con
veyer are provided with a braking arrangement
to prevent their turning backwards in such a way
as to react against the starting torque of the
driven wheels of the vehicle and allow the latter
to leave the apparatus under its own power.
When the conveyer is applied to a cleaning
installation the spacing of the roller axles in the
direction of the longitudinal axes of the conveyer
is at least equal to one and a half times the diam
eter of the rollers, whereby by its passage over
the rollers, the vehicle undergoes numerous vertical shakings which facilitate the removal of
mud and washing water from the vehicle.
Other characteristic features of the invention
will appear in the course of the following descrip
tion of a conveying apparatus in accordance with
the invention, said apparatus being shown on the
annexed drawings, whereon:--~
Fig. l is a diagrammatic elevation of the whole
of the apparatus;
Fig. 2 is a plan view corresponding to Fig. l;
5‘;
101;
15;
20:
21B,
Fig. 3 is an axial section of a roller;
Fig. 4 is a view in elevation of a part of the
driving chain for the rollers;
Fig. 5 is an end view of the stopping arrange
ment for a roller of the non-working part of the 30,.
apparatus;
Fig. 6 is a View in elevation of a hanger for the
chain; and
Fig. '7 is a section along the line A-A in Fig. 6.
Referring to the drawingst-
'
5j,
The apparatus comprises two conveyers having
the same number of rollers and the same rne
chanical contrivances, the two conveyers being
symmetrical with respect to the central plane of
the installation.
40
One of these conveyers is formed by twolon
gitudinal beams l and 2, one being situated at
the side of the central plane and which will be
called the “internal beam”, the other beam 2
being called the “external beam”. Each of the 45
beams rests at its extremities on supports 3 and
4 and on any desired number of intermediate
supports (not shown).
Between the two beams are disposed the roll
ers 5, Fig. 3, each fixed by pointed screws t to a 50j
shaft l1, the extremities of which pass through
the webs of the beams and turn in supporting
bearings in housings 8 and 9 i'ixed on the oppo~
site faces of the webs of the beams.
The housing 8 on the internal beam l comprises 55;
2
2,110,942
a ball bearing I0 held on to the shaft l by a nut
II, said housing being closed by .a cap I2, whilst
,allowing easy removal of the sprocket without
having to dismount the guides. The slack of the
a packing washer I3 assures the water-tightness
of the end of the shaft. In order to avoid any
entry of water into the said housing, a plate iß
is mounted on the shaft .and turns freely in a
chamber which is open at its lower part.
On the external beam 2, the housing 9 also
chain Ißb passes over the sprocket and can be
tensioned by the action of a threaded rod 33
ñxed to the saddle and passing through the lower
head 3l) on which it is supported by a tension
screw 3Q locked by .a lock nut 35. The chain l?b
comprises a ball bearing and the same elements
the tensioning sprocket and a jockey sprocket
10 for producing water-tightness as for the housing
leads it tothe level of the return` rail l'I.
The tension `device ¿i6 is similar to the device
2S but is arranged horizontally under the beam
l, to which it is attached .at its two extremities.
As the beams 2 are of U-form, the housings 9
8, but the end of the shaft l protrudes from the
housing .and'carries a sprocket i5 shaped in such
a way as to engage with the rollers of a sprocket
chain I6.
The driving part of the chain passes succes
15
sively over all the sprockets with which it en
gages, Whilst the slack reach i612 of the chain
slides on a rail I‘I fixed on the inner face of the
lower flange of the beam 2. Guides i8, arranged
20 at long intervals apart, keep the chain on the
rail I‘I and prevent it falling îrom it, particu
larly during mounting and dismounting opera
tions.
The driving part i6 of the chain is kept in
25 engagement with the sprockets l5 by fixed guides
I9, Figs. 3 and 4, arranged on the extensions
20 of the housing 5. The guides are slightly
inclined in such a way `as to cause the chain to
follow a curvilinear path and to engage with sev
30 eral teeth of each sprocket.
The guides iQ are
also of symmetrical form with respect to their
axes, so as to be capable of being turned around
when they are worn on one side.
As shown in
Fig. 3 the guides IS engage the rollers of the
35 sprocket chain I6, so that only rolling friction
therebetween is developed. The thickness and
the position of the guides are such that they bear
only against the rollers with which the pintles of
`the chain are provided, in such .a way that the
40 friction upon the guides may mainly be rolling
friction.
The roller 5a which, see Fig. 1, is located at
one extremity of the conveyer is placed at a
lower level than that of the other rollers so that
45 the slack of the chain returned on the sprocket
of this roller rests on the guide rail Il without re
engaging with the sprockets l5. In order to
permit the driving of vehicles on to the conveyer,
the extreme roller 5w is covered by a sheet iron
50 plate 2l arranged at the level of the supporting
surfaces of the running rollers 5.
At the opposite end of the conveyor, the roller
5b, over which the chain returns, serves to drive
the chain, the axle of said roller being mounted
55 between the beams I and 2 and supported at its
leaves the sprocket of the roller 5b to pass on to
and the chain I5 are accommodated within the 15
interior oi its profile. A protecting casing Sli,
Fig. 3, is ñxed between the two fianges oi the
beam and is held by ties 3l arranged between
the sprockets. A water-tight joint 3B prevents
the entry of water between the upper edge of 20
the casing and the ilange of the beam.
'I’he whole of the mechanical part for the driv
ing and support of the rollers is thus well pro«
tected against water and mud, which is particu
larly important in the application of the con 25
veyer to cleaning installations for vehicles.
In such an application the installation is> ar
ranged in such a manner that the vehicles enter
on to the conveyor at the extremity 5a opposite
to the motor mechanism, the cleaning thus tak
ing place on that part of the chain furthest from
said mechanism. The draining of the water takes
place at the central part of the conveyor and
the drying and finishing operations are effected
at the end where the tension devices and the driv 35
ing system are arranged, so that all the mechani
cal elements which are not enclosed in ,a water
tight casing are at -a substantial distance from
the water and the mud.
The conveyor proper is prolonged at the dis 40
charging end by .a non-working part formed by
rollers 40, Fig. l, mounted between the beams
l and 2 and fixed to their axles, which turn in
ball-bearing housings identical with the hous
ings 3 and 5l of the working rollers.
45
For the rollers lill the sprockets i5 are replaced
by ratchet wheels lll, Fig. 5, each mounted in
the same way at the end of the axles. Pawl ¿l2
bears on the ratchet wheel and pivots on a pin
¿i3 ñxed on an extension 2S of the ball-bearing 50
housing 9. A spring 419.» constantly urges the pawl
¿l2 into contact with the wheel -fl-I.
When the vehicle carried forward by the con
tical with the housings 9, a sprocket I5b, identi
veyer arrives on the non-working part of the
conveyer it drives the rollers llü `and continues 55
to advance until the rear wheels of the vehicle
are free of the roller 5b. At this moment, the
cal with the running sprockets l5, being fixed
vehicle is stopped.
extremities by two ball-bearing housings iden
at each end of the axle. A driving apparatus 22
60 constituted, for example, by an electric motor
with a reduction gear which has a horizontal
shaft 23 carrying two sprockets Ztl drives the
sprockets I5b through chains 25, and thus actu
ates the conveyor.
The slack parts of the chains i6 and 25 are
65
provided with tension elements or stretchers 2t
and 46.
Figs. 6 and '7 show in detail the stretcher 26,
which comprises a saddle 2l slidable with little
70 friction between three vertical guides 28, 23a and
28h.
The t'hree guides are interconnected at
The bearing of the rollers
on the pawls ¿l2 allows the vehicle to move away
under its own power, the said rollers being unable 60
to turn backwards under the action of the driv
ing force of the wheels.
The conveyer thus formed can be utilized not
only for the washing of vehicles but also in all
installations necessitating the transporting of 65
these vehicles as, for example, installations for
greasing the chassis when this operation is car
ried out as a continuous process.
It will be well understood that the »apparatus
could be adapted to its particular applications
and could undergo any modifications that are
their ends by heads 29 and 3E, the former being
iixed to the beam 2. A sprocket 3! is mounted
necessitated by such adaptations.
on an axle 32 screwed into the saddle 2l’ be
i. Apparatus for transporting and supporting
motor vehicles during servicing, comprising an
75 tween the guides 28 and 28a, this arrangement
I claim:
'
2,110,942
elongated conveyer having a plurality of rollers
disposed parallel to each other, said rollers com
prising a first group extending from the loading
end of the conveyer toward the discharge end,
means for rotating the rollers of said first group
forwardly for transporting the vehicles forwardly
with their wheels locked, said first group extend
ing the entire distance in which servicin-g of the
vehicle is performed, a second group of rollers ex
li) tending from the end of the first group to the
3
5. Apparatus for supporting and transporting
motor vehicles during servicing, comprising a plu
rality of rollers parallel with each other, and
arranged in two parallel rows, each row corn
prising from loading to the discharge end a first
group of rollers, each having a rotatable axle pro
vided at one end with a sprocket wheel, said
roller axles having supporting bearings, and
chains each engaging with all the roller sprocket
wheels of one row, a motor having a shaft and a
discharge end of the conveyer, for receiving the
vehicles from the first group after the servicing
operations with their wheels locked, the rollers
of said second group being freely rotatable for
wardly, means for> preventing rearward rotation
of the rollers of said second Igroup so that the
vehicles may be removed from the discharge end
of the said second group under their own power.
chain transmitting driving force between the
motor shaft and the shaft of the end roller
sprocket wheel at they front end o-f each of said
2. Apparatus for transporting motor vehicles
during servicing comprising a plurality of rollers,
each roller being provided with a rotatable shaft
servicing, means for locking the non-driven roll
ers against rotation in the direction from front
to rear, said non-driven rollers being freely ro
tatable forwardly, so that the vehicle with its
wheels locked can pass onto said non-driven roll
ers without sliding and may leave the apparatus
under its own power, and a pair of U-shaped 25
supporting beams at the ends of the rollers of
each row, the bearings, sprocket wheels, driving
chains and locking means being disposed in the
grooves of said beams, plates closing said grooves
to form water tight casings and stuffing boxes for
excluding water and dirt from the bearings.
on which it is fixed, a chain sprocket fixed on
each shaft, a chain engaging by its driving reach
with all the said sprockets, means for increasing
the arc of engagement between the driving run
of the chain and each sprocket, means for ten
sioning the other reach of the chain and
for keeping said other reach disengaged from the
sprockets, and means for driving the shaft of
one of the end rollers in such a manner that the
driving run is the upper reach of the chain.
3. Apparatus for transporting motor vehicles
during servicing comprising, a plurality of rollers
arranged parallel with each other, each roller
being provided with a rotatable shaft on which
it is fixed, said rollers being arranged into two
parallel rows, each row comprising, from the
loading end to the discharge end, a first group
of rollers, each roller shaft of both first groups
40 being provided with a sprocket wheel fixed there
on, a pair of chains each engaging with all of the
sprocket wheels of one row of rollers, means dis
posed at the forward end of each of said first
groups to drive one of the rollers thereof, each
first groups of rollers, each of said rows of rollers
also comprising a second group of non-driven
rollers arranged following the driven rollers, said
second groups of non-driven rollers extending
over a length sufficient to receive a vehicle after
6. Apparatus for supporting and transporting
motor vehicles during servicing, comprising a
plurality of parallelly disposed rollers arranged
in two parallel rows, the axes of the rollers being
transverse to the direction of extent of the rows,
each roller having a rotatable shaft on which it
is fixed, each shaft having a pair of bearings on`
which it is mounted, one at each end thereof,
each bearing being enclosed in a casing and 4.0
means for excluding water and solid matter from ~
said casings, a sprocket wheel on each shaft,
a pair of chains each engaging with its driving
reach all the sprocketwheels of the rollers in
45
row of rollers also comprising a group of non
one of the rows, the distance between the axes of
driven rollers following the driven groups, the
non-driven rollers being freely rotatable for
wardly, means for locking 'the non-driven rollers
against rotation from front to rear, the non
driven groups of rollers extending over a length
suiiicient to receive a vehicle after servicing
treatment, so that the latter may leave the appa
the rollers in the direction of the rows being sub
stantially equal to one and a half times' the.
diameter of a roller, and means for driving the
shaft of one of the end rollers of each row so that
50
the driving reaches of the chains are the upper
reaches thereof.
ratus under its own power.
Äl. Apparatus for transporting motor vehicles
during servicing, comprising a plurality of rollers
arranged in two parallel rows, each roller hav
ing a rotatable shaft on which it is ñxed, a
sprocket wheel on each shaft, a chain engaging
with its driving reach with all the roller sprocket
GO wheels in the same row, a pair of parallel U
shaped beams, two bearings for supporting each
roller shaft, each of said bearings being mount
ed in one of said U-shaped beams, the sprocket
wheel of each roller being mounted at one end
65 of its shaft and in the groovey of one of said U
shaped beams, plates for closing the grooves of
said U-shaped beams to form casings, Ine-ans in
cluding stufñng boxes providing water tightness
of the casings, and a motor having a chain' power
70 transmission for driving the shafts of one of the
end rollers of each row.
'7. Apparatus for transporting motor vehicles
during servicing comprising a plurality of rollers,
each roller being provided with a rotatable shaft 55
on which it is fixed, a sprocket fixed on each
shaft, a sprocket chain having rollers engaged by
its driving reach with all the sprockets, means
comprising fixed inclined guides extending down
wardly at an angle between each adjacent pair
of sprockets and engaging the rollers of the 60
chain for increasing the arc of engagement be
tween the driving run of the chain and each
sprocket, means for tensioning the other reach of
the chain and for keeping said other reach dis
engaged frorn the sprockets, and means for driv
65
ing the shaft of one of the end rollers in such
a manner that the driving run is the upper reach
of the chain.
EMILE PIQUEREZ.
70
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