close

Вход

Забыли?

вход по аккаунту

?

Патент USA US2136586

код для вставки
Nov. 15, 1938. .
A. DUBONNET
2,136,586
WHEEL MOUNTING
Filed Jan. 5, 1933
2 Sheets-Sheet 1
a’:
N
Q ' §André Dubonnzt
Nov. 15, 1938.~
A. DUBONNET
2,136,536
WHEEL MOUNTING
‘
Filed Jan. 5, 1933
'
J‘
l.
F-J
'
~ v1
.
'1‘
2 Sheets-Sheet 2
Y
‘INVENTOR.
,eYndré Dubonmt
Patented Nov. 15, 1938
2,136,586
UNITED STATES PATENT OFFICE
2,136,586
WHEEL MOUNTING
André Dubonnet, Neuilly-sur-Seine, France
ApplicationJanuary 5, 1933, Serial No. 650,355
In Belgium November 14, 1932 p
27 Claims. (Cl. 267-—20)
The present invention relates to wheel mount
with a shaft 0 parallel to spindle A, shaft 0 being
ings, especially to an arrangement for correct
?tted with a plurality of arms (1 reacting on a
ing certain undesirable movements of a vehicle combination of suspension and shock-absorbing
chassis during acceleration and, more particu
springs b contained in a closed casing c. Casing
larly, during negative acceleration.
c, in the case of rear wheels, is directly supported
In vehicles equipped with independent wheels on the chassis and in the case of front Wheels,
of the type described in the inventor’s co-pend
as shown in Figure 2, is supported by arms s on a
ing application Serial Number 415,510 ?led Dec. pivot p mounted on the front portion 1 of the
20, 1929, and even in vehicles equipped with axles chassis. In order to correct dipping of the chassis
10 of the usual type it is found that, during‘nega
when the brakes are applied, supporting plate 1’ 10
tive acceleration (slowing down) from high or for the brake jaws Z, which is ?xed with respect
even moderate speeds, the turning couple pro
to A in the conventional prior art, is mounted to
duced by'the action of the brakes on the wheels pivot around thev corresponding wheel spindle
causes the forward part of the chassis to dip as an axis, this being effected through the in
downward. In other words, the forward mo
termediary of a cylindrical sleeve t ?rmly con 15
mentum of'the car acting at its center-of gravity nected to element J‘ and co-acting with a corre
with the resistance caused by braking at the point sponding supporting surface 21. mounted on the
of contact between the wheel and the rod com
wheel spindle. Means are provided for prevent
bine to produce a couple of such a nature as to ing rotation of element ,7‘ with the wheel compris
tend to raise the rear end of the vehicle and ing a link hpivotally connected at one extremityB
depress the front end thereof.
I
to element 1‘ and engaging pivotally at the other
One of the objects of the present invention is extremity C with some element ?xed with respect
to correct this dipping effect.
to the chassis such as casing c. If desired, the
Other objects will appear in the course of the connection between link it and element 1‘ may
detailed description now to be given with ref-' take the form of a universal or ball-and-socket
erence to the accompanying drawings, in which: joint 2'.
Figure 1 represents, diagrammatically, one i1
From the foregoing, it will be readily seen that
lustrated'embodiment of the invention;
link h will prevent rotation of element J‘ with the
Figure 2 is a section through a chassis and wheel and that the lines joining points A B C
suspension of the type described in the co-pend
and O constitute a quadrilateral. If the lengths 30
ing application above referred to and showing the of elements a and h be made equal as well as dis
details of construction of the assembly illus
tances A B and C O, the quadrilateral becomes a
trated in Figure 1;
'
parallelogram and side A B will always move
Figure 3 ‘is a vertical section on the line 3—
through parallel positions irrespective of angu-v
:3 Li of Figure 2;
_
'
lar displacements of elements a. and it (see Fig 35
Figure 4 includes two diagrams showing a sec
ure 1). Preferably, theparallelogram should be
ond form of correcting device for two Wheels of a designed to become rectangular when the vehicle
vehicle wherein the rear wheel is mounted in is at rest.
front of and the front wheel behind a pivotal
When the brake jaws I supported by element
support;
‘
f are applied to brake drum g, the couple F ex
Figure 5 is a similar pair of diagrams repre
erted on element 1‘ is incapable of deforming the
senting a di?erent form of correcting device for parallelogram above referred to since it would be'
wheels in which the rear wheel is mounted be
necessary that the couple in question do work
hind and the front wheel in front of the support; ~during such a deformation. In order that work
Figure 6 represents, diagrammatically, a cor- be done, it would be necessary for element 7’,
recting device adapted to be used on vehicle to rotate angularly. But this is impossible be
Wheels suspended from an axle in the usual way;
cause of the fact that the line joining A and B
Figure '7 is a section taken on line '|-'I of Fig
always moves through parallel positions.
ure 6.
In the form of assembly represented in Figure
Referring to Figures 1 to 3 of the drawings, 4, element 1‘ is mounted to be capable of oscillat
there is shown an independent wheel suspension . ing relatively to lever a and the couple developed
of the type described in the inventor’s co-pend
during application of the brakes is transmitted to
ing application and comprising a‘ lever a pro
the latter in the form of a couple which is dif
vided, at one extremity, with a wheel sup
55
porting spindle A and, at the other extremity,
ferent from the braking couple, and preferably
opposed to the latter. In this ?gure AF desig 55
2,186,588
2
nates the front axle and A“ the rear axle, the
movement with respect thereto, an arm pivoted
vehicle moving in the direction of the arrow :17.
The general assembly is substantially the same
as in Figures 1 to 3 except that the parallelogram
is transformed into a trapezoid designed so that
a dipping orrlsing action of the chassis rela
tively to the wheel axle or spindle is caused by
on said chassis to turn about a substantially hori
zontal axis, spring means resisting turning of
said arm in at least one direction, and means
including said arm to support said wheel spin
dle rigidly perpendicular to said arm and to
limit turning movement of said member, said last
an angular displacement of element f in the means further including a rigid element pivoted
said chassis and member.
direction toward which it tends to move when . to 2.
A steering wheel mounting for a vehicle 10
10 the brakes are applied. As illustrative of one
having a chassis, comprising a member mounted
possible form of assembly, sides A B and 0 C of
the trapezoid may be chosen to lie parallel when
the vehicle is at rest and link It is given suf
?cient length to lie obliquely with relation to
ll wheel supporting arm a. If the wheel is mount
ed on the front of the chassis posteriorly to point
0 or on'the rear of the chassis in front oi’ point
0, it is found in practice that side 0 0 must
be longer than side A B if it be desired to obtain
on said chassis to turn about a substantially ver
tical axis, an arm mounted in said member to
turn about a substantially horizontal axis, spring
means in said member resisting turning of said
arm in one direction, a. wheel spindle, an ele
ment mounted around said wheel spindle and
capable of angular movement with respect there
to, and means including said arm to support
said wheel spindle and to limit turning move
ment of said arm.
3. In a device as claimed in claim 2, said spin
dle being substantially perpendicular to the lon
gitudinal axis of said arm and being rigidly
side A B must be made longer than 0 C to ob- ‘
26
mounted with respect to said arm.
tain the same effect.
4. A wheel mounting for a vehicle having a
In the assemblies so far described, the wheels
have been assumed to be supported on lever. (2. chassis, comprising an arm mounted on said
to turn about a substantially horizontal
However, it is possible to obtain a correcting chassis
axis, a wheel spindle mounted on the free end
effect even when the wheel spindle is firmly at
30
tached to a plate 1 equivalent to element 1‘ (see of said arm, spring means on said chassis re
Figures 6 and 7), said plate being supported sisting turning of said arm in at least one direc
7 from the chassis by a pair of arms 701 is2 pivoted tion, a brake supporting plate mounted on said
spindle and capable of angular turning move~
at fixed points 0 and C respectively and pro
with respect thereto, and means connected
vided with elastic means (not shown) reacting ment
35
on at least one arm. Inspection of Figures 6 and to said'chassis and plate to limit such turning
movement.
'
'7 will show that these two arms constitute two
5. _A wheel mounting for a vehicle having a
sides of a quadrilateral of the type already re
ferred to and that, by properly chosing the chassis, comprising an arm mounted in said
length thereof, dipping movements of the chassis chassis to turn about a substantially horizontal 40
axis, a wheel spindle at the free end of said arm
may be corrected in a manner which will be ob
substantially perpendicular thereto, spring means
vious to those skilled in the art.
on said chassis resisting movement of said arm
a lifting effect on the chassis when the brakes are
applied. Contrariwise, if the front axle A1" is
positioned in front of ‘point 0 or the rear axle
AR behind this latter point, as shown in Figure 5,
These arrangements will prevent the dip caused
by the usual brake systems for the reasons ex
plained hereinafter. Considering Figures 1 and
2, if the vehicle is moving towards the left in
these ?gures the wheel will be turning in a coun
terclockwise direction. When the brake is ap
plied, the couple F is exerted on the brake plate
J‘ and tends to turn the line A B counterclockwise
around the point A. This is impossible because
the system A B C O is a parallelogram and can
not be distorted in this direction. However, this,
torque will tend to drive the point B downward
which will result in raising the points C and O
to the points 0° and 0° respectively. Since the
points 0 and O are fixed with respect to the
chassis the front end of the chassis will be raised
against the dipping action and the chassis will
thus remain level.
Considering Figure 4, the counterclockwise
torque exerted against B will turn this point
to E‘ and will force the point C up to C". thereby
raising O to 0°. In the cam of the rear wheel,
on the other hand, the movement of B to‘ B0
will depress the points 0 and O to O’ and 0°
respectively. In the same way in Figure 5 the
torques moving the points B to 13° will raise
and depress the points C and O to C° and 0°
on the front and rear wheels respectively.
The
70 same action will obviously take place in the con
struction shown in Figures 6 and 7.
What I claim is:
1. A wheel mounting for a vehicle ‘having a
chassis, comprising a wheel spindle. a member
7| (around said spindle capable of angular turning
in at least one direction, a brake supporting
plate mounted around said spindle and capable
of angular movement with respect thereto, and
a rigid link pivoted to said plate and ‘chassis for
limiting turning movement of said plate.
6. A. steering wheel mounting for a vehicle
having a chassis, comprising an element mounted
on said chassis to turn about a substantially ver
50
tical axis, apair of members pivoted in said ele
ment about substantially parallel horizontal axes
and extending substantially perpendicularly to
said axes, means yieldingly resisting movement
of, at least one of the members with respect to 55
said element, and a wheel spindle rigidly sup
ported by said members substantially perpendicu
larly thereto.
,
'1. A steering wheel mounting for a, vehicle hav
ing a chassis, comprising a member mounted on‘ 60
said chassis to turn about a substantially ver
tical axis, an arm mounted in said member to
turn about a substantially horizontal axis, means
yi’elglingly resisting movement of said arm with 65
respect to said member, a wheel spindle, an ele
ment mounted around said wheel spindle and
capable of angular movement with respect there
to, and means including said arm to support said.
wheel spindle and to limit turning movement of
70
said element.
8. A steering wheel mounting for a vehicle hav
ing a chassis, comprising a member mounted on
said chassis to turn about a substantially vertical
axis, an arm. mounted in said member to turn
about‘ a substantially horizontal axis, means
2,136,588
3
yieldingly resisting movement of said arm with pable of angular turning movement with respect
respect to said member, a wheel spindle, an ele
thereto, at least one of said members being con
ment mounted around said wheel spindle and nected to said plate to limit the turning move
capable of angular movement with respect there
ment thereof.
to, and means including said arm to support said
14. A steering wheel mounting for a vehicle 5
wheel spindle and to limit turning movement of , having a chassis, comprising a member mounted
said element, said spindle being held in a ?xed on said chassis to turn about a substantially ver
line with respect to said arm for all wheel posi
tical axis, an arm mounted in said member to
tions.
'
turn about a substantially horizontal axis, means
10
9. A steering wheel mounting for a vehicle hav
yieldingly resisting movement of said arm with 10
ing a chassis, comprising a member mounted on respect to said member, a wheel spindle mounted
said chassis to turn about a substantially vertical at the free end of said arm, a brake supporting
axis, an arm mounted in said member to turn
plate. mounted around said spindle and capable
about ‘ a substantially horizontal axis, means
of angular movement with respect thereto, and
15 yieldingly resisting movement of said arm with a link pivoted to said plate and chassis for lim 15
respect to said member, a wheel spindle, an ele
iting turning movement of said plate.
ment mounted around said wheel spindle and
15. A steering wheel mounting for a vehicle
capable of angular movement with respect there
having a chassis, comprising a member mounted
to, and means including said arm to support said
20 wheel spindle and to limit'turning movement of
, said element, said spindle being held in a ?xed
line with respect to said arm and perpendicular
thereto for all wheel positions.
'
10. A steering wheel mounting for a vehicle
25 having a chassis, comprising a member mounted
on said chassis to turn about a substantially ver
tical axis, an arm mounted in said member to
turn about a substantially horizontal axis, means
yieldingly resisting movement of said arm with
30 respect to said member, a wheel spindle, a brake
supporting plate mounted around said spindle.
and capable of angular movement with respect
thereto and means including said arm to support
said wheel spindle and to limit turning‘ move
35 ment of said plate.
11. A steering wheel mounting for a vehicle
having a chassis, comprising a member mounted
on said chassis to turn about a substantially ver
tical axis, an arm mounted in said member to
40 turn about a substantially horizontal axis, means
yieldingly resisting movement of said arm with
respect to said member, a wheel spindle, a brake
supporting plate mounted around said spindle
and capable of angular movement with respect
-45 thereto and means including said arm to support
said wheel spindle and to limit turning move
ment of said plate, said spindle being held in a
?xed line with respect to said arm for all wheel
positions.
50
12. A steering wheel mounting for a vehicle
having a chassis, comprising a member mounted
on said chassis to turn about a substantially ver
tical axis, an arm mounted in said member to
turn about a substantially horizontal axis, means
yieldingly resisting movement of said arm with
respect to said‘ member, a wheel spindle, a brake
supporting plate mounted around said spindle
and capable of angular movement with respect
thereto and means including said arm to support
60 said wheel spindle and to limit turning movement
of said plate, said spindle being held in a ?xed
line with respect to said arm and perpendicular
thereto for all wheel positions.
13. A steering wheel mounting for a vehicle
65 having a chassis, comprising an element mounted
on said chassis to turn about a substantially ver
tical axis, a pair of members pivoted in said ele
on said chassis to turn about a substantially ver
tical axis, an arm mounted in said member to 20
turn about a substantially horizontal axis, means
yieldingly resisting movement of said arm with
respect to said member, a wheel spindle mounted
at the free end of said arm, a brake supporting
plate mounted around said spindle and capable
of angular movement with respect thereto, and a
link pivoted to said plate and chassis for limiting
turning movement of said plate, the length of
said link being different from that of said arm.
16. A steering wheel mounting for a vehicle 30
having a chassis, comprising a member mounted
on said chassis to turn about a substantially ver
tical axis, an arm mounted in said member to
turn about a substantially horizontal axis, means '
yieldingly resisting movement of said arm with 35
respect to said member, a Wheel spindle mounted
at the free end of said arm, a brake supporting
plate mounted around said spindle and capable
of angular movement with respect thereto, and
a link pivoted to said plate and chassis for lim
40
iting, turning movement of said plate, the dis
tance between the free end of the arm and the
point where said link is pivoted on said plate be
ing different from the distance between the oth
er ends of said arm and link.
,
45
17. A steering wheel mounting for a vehicle
having a chassis, comprising a member mounted
on said chassis to turn about a substantially
vertical axis, an arm mounted in said member to
turn about a substantially horizontal axis, means 50
yieldingly resisting movement of said arm with
respect to said member, a wheel spindle mounted
at the free end of said arm, a brake supporting
plate mounted around said spindle and capable
of angular movement with respect thereto, and 55
a link pivoted to said plate and chassis for lim
iting turning movement of said plate, the axle
around which said‘ arm is pivoted in said member
being in front of said spindle and the length of
said link being greater than that of said arm.
60
18. A steering wheel mounting for a vehicle
having a chassis, comprising a member mounted
on said chassis to turn about a substantially ver
tical axis, an arm mounted in said member to
turn about a substantially horizontal axis, means 65
yieldingly resisting movement of said arm with
respect to said member, a wheel spindle mounted
at the free end of said arm, a brake supporting
ment about substantially parallel horizontal axes
and extending substantially perpendicularly to , plate mounted around said spindle and capable
said axes, means yieldingly resisting movement of angular movement with respect thereto, and 70
of at least one of said members with respect to a link pivoted to said plate and chassis for limit
said element, a wheel spindle supported by said ing turning movement of said plate, the axle
members and held substantially perpendicularly around which said arm is pivoted in said member
thereto for all wheel positions, a brake support
being behind said spindle and the length of said
link being less than that of said arm.
75 ing plate mounted around said spindle and ca
75
“
2,136,586
19. A steering wheel mounting for a vehicle
having a chassis, comprising a member mounted
on said chassis to turn about a substantially ver
tical axis, an arm mounted in said member to
turn about a substantially horizontal axis, means
yieldingly resisting movement of said arm with
respect to said member, a wheel spindle mounted
at the free end of said arm, a brake supporting
plate mounted around said spindle and capable
10 of angular movement with respect thereto, and
' a link pivoted to said plate and chassis for limit
ing turning movement of said plate, the length
of said link being di?erent from that of said
arm, the distance between the free end of said
15 arm and the point where said link is pivoted on
said plate being less than the distance between
thereof to the spaced link members, its pivot axes
thereon being parallel to the aforesaid axes and
together with the two link members and the frame
constituting a quadrilateral deformable in a sub
stantially vertical plane, a spindle for the road
wheel substantially parallel to the aforesaid axes
having its axis ?xed relatively to the brake shoe
supporting member, and means resiliently re
straining pivotal movement of the link members
relatively to the frame, said link members being 10
of di?erent lengths.
24. In a vehicle suspension system in combina
tion, a vehicle frame, an element mounted on said
frame to turn about a substantially vertical axis,
a road wheel, brake shoes for the road wheel, a 16
supporting pivotal linkage system for the road
wheel, including a pair of spaced link members
the other ends of said arm and link.
20. A steering wheel mounting for a vehicle pivoted to said element for swinging movement
having a chassis, comprising a member mounted about a pair of parallel ‘axes in different sub
stantially horizontal planes in fixed relation to
20 on said chassis to turn about a. substantially ver
tical axis, an arm mounted in said member to v the frame, a brake shoe supporting member pivot
turn about a substantially horizontal axis,'means ally connected at spaced points thereof to the
yieldingly resisting movement of said arm with
respect to said member, a wheel spindle mounted
at the free end of said arm, a brake supporting
plate mounted around said spindle and capable
of angular movement with respect thereto, and
a link pivoted to said plate and chassis for lim
iting turning movement of said plate, the length
80 of said link being di?erent from that 01 said arm,
the distance between the free end of said arm
and the point where said link is pivoted on said
plate being greater, than the distance between
the other ends of said arm and link.
21. A steering wheel moimting tor a vehicle
having a chassis, comprising an element mounted
on said chassis to turn about a substantially ver
tical axis, a pair of members pivoted in said ele
ment about substantially parallel horizontal axes
and extending substantially perpendicularly to
45
60
55
60
65
spaced link members, its pivot axes thereon being
parallel to the aforesaid axes and together with
the two link members and the element constitut
ing a quadrilateral deformable in a substantially
vertical plane, a spindle for the road wheel sub
stantially parallel to the aforesaid axes having
its axis ?xed reltively to the brake shoe support
ing member, and means resiliently restraining
pivotal movement of the link members relatively
to the element.
25. A wheel mounting for a vehicle having a
chassis, comprising a wheel spindle, a member
around said spindle capable of angular turning
movement with respect thereto, an arm pivoted
on said chassis to turn about a substantially hori
zontal axis, spring means resisting turning'of said
arm in at least one direction, and means includ
ing said arm to support said wheel spindle rigidly 40
said axes, means yieldingly resisting movement perpendicular to said arm and to limit turning
of at least oneof the members with respect to movement of said member, said last means fur
said element, and a wheel spindle supported by ' ther including an element pivoted to said chassis
said members and held substantially parallel to and member, said element being angularly ar
the pivots of said members for all wheel posi
45
ranged with respect to said arm.
'
tions.
26. A wheel mounting for a vehicle having a
22. In a vehicle suspension system in combina
chassis, comprising an arm pivoted on said chas
tion, a vehicle frame, a road wheel, brake shoes sis to turn about a substantially horizontal axis,
for the road wheel, a supporting pivotal link
a wheel spindle directly carried by said arm, a
age system for the'road wheel, including a pair member around said spindlecapable of angu
of spaced link members pivoted for swinging lar turning movement with respect thereto, spring
movement about a pair of parallel axes in dif
means resisting turning of said arm in at least
ferent substantially horizontal planes in ?xed one direction, and means including said arm to
relation to the frame, a brake shoe supporting support said wheel spindle rigidly perpendicular
member pivotally connected at spaced points to said arm and to limit turning movement of 55
thereof to the spaced link members, its pivot axes said member, said last means further including
thereon being parallel to the aforesaid axes and an element pivotally connected to said chassis and
together with the two link members and the member.
frame constituting a quadrilateral deformable
2'7. A wheel mounting for a vehicle having a
in a substantially vertical plane, a spindle for chassis, comprising an arm pivoted on said chas
the road wheel substantially parallel to the afore
sis to turn about a substantially horizontal axis, a
said axes having its axis fixed reatively to the wheel spindle directly carried by said arm, a mem
brake shoe supporting member, and means re
ber around said spindle capable of angular turn
siliently restraining pivotal movement of the link
members relatively to‘ the frame.
ing movement with respect thereto. spring means
23. In a vehicle suspension system in combina
tion, a vehicle frame, a road wheel, brake shoes
for the road wheel, a supporting pivotal linkage
system for the road wheel, including a pair of
said wheel spindle rigidly perpendicular to said
spaced link members pivoted for swinging
70 movement about a pair of parallel axes in dif
ferent substantially horizontal planes in fixed
relation to the frame, a brake shoe supporting
member pivotally connected at spaced points
resisting turning of said arm in at least one direc
tion, and means including said arm to support
arm andto limit turning movement of said mem
ber, said last means further including an element
pivotally connected to said chassis and member,
said element being angularly arranged with re
spect to said arm.
'
ANDRE DUBONNET.
Документ
Категория
Без категории
Просмотров
0
Размер файла
796 Кб
Теги
1/--страниц
Пожаловаться на содержимое документа