close

Вход

Забыли?

вход по аккаунту

?

Патент USA US2112811

код для вставки
March 29, 1938.
>
R. T. HENDRICKSON
'
2,112,811
MOTOR VEHICLE
'
Filed May 16,» 1955 .
s Sheets-Sheet 1
M67251":
‘
I
(Z7
u
%
f?ezzdrtizsolz; '
r
'
M’ 1 m1:
l
I
‘March 29, 1938.
' R. T. HENDRICKSON
>
2,112,811
MOTOR VEH ICLE
Filed May 16', 17935
43444643
5 Sheets-Sheet 2
March 29, 1933"
‘
.
v R. T. HENDRICKSON
2,112,311
MOTOR VEH ICLE '
Filed May 16, 1935
5 Sheets-Sheet 3
A
1
1 ,\ | a
J'
berZTHerzdrw/mwz
Patented, Mar. 29, 19138
2,112,811
> UNITED STATES
PATENT OFFICE?
2,112,811‘
'
a
Moron vnmcm
-
Robert '1'. Hcndrickson, Chicago, 111., as'aignor to ‘
Hcndrickson Motor Truck 00., Chicago, 111.,‘ a
corporation of Illinois
' Application May 16, 1935, Serial No. 21,704 _
5 Claims; (Cl. 180-22)
This invention has to do with heavy duty , The differentials l4 and I1. and the propeller
motor vehicles of the type equipped with four shafts l5 and I8 connectedwith the same are >_
rear drive wheels, and particularly to the mount
offset laterally with respect to .the central line
ing of the axle housings relative to the chassis of the frame ID, the differential It with the shaft
5 frame to permit the wheels to move up and down
i5 being located nearer one side of the frame 5
- freely to conform to irregularities in the road-' and the differential» II with its shaft I! being
way.
'
.
.
In the constructions heretofore employed, the
maintenance of a fixed angular relation of the
10 axle housings and differentials to the frame, dur
ing up and down movement of the wheels results
in a modi?cation of the angle of the axle hous
ings to’the propeller shafts which tends to permit
binding and undue friction.
15
located in generally _ parallel spaced relation
thereto but nearer the other side of the frame.
Both of the propeller shafts l5 and iii are con
nected at their forward ends to a joint diiferen- 1o
tial I! which is mounted'on the frame ii. The
differential“ is driven from a centrally arranged
propeller shaft 20 which extends rearwardly
from the motor, clutch and transmission assembly
-
The primary object of the present invention
is to provide an improved mounting for the four
rear drive wheels ‘and their axle housings, which
mounting permits the wheels to move up and
on the front end of the frame.
16
In the particular embodiment shown, ‘the frame
III is supported on the twov rear axle units II and
I2 by an advantageous spring and linkage ar
down freely with relation to each other while. ' 'rangement disclosed in Hendrickson Patent’ No.
2o maintaining, between the axle housings and the
propeller shafts, a favorable angle in the vertical
plane of the latterl
Other. objects and advantages of the invention
will be evident to’ those skilled in the art upon
25 a full understanding of the novel construction,
arrangement and operation of the ‘mounting.
‘One form of the invention is presented herein
, for purposes of exempli?cation but it will, of
course, be understood that the invention is sus
3
supplemental linkage arrangement for modifying
the
frame
angle
which
between
forms the
the axle
subject
housings
matterand
of the?
the
present invention.
- '
- ’
slight inclination from the differential I 9 to the
basis for the following descriptive speci?cation
differential
vehicle chassis equipped with the improved axl
housing mounting;
-
Fig. 2 is a side view partially in section of such
40 a construction with the wheels upon a level, the
ing construction at 2|, is provided at its front 30 ~
and rear ends with‘univ'ersal joints 22 and 23,
and extends downwardly and .rearwardly at a
ll.
.
unit, which is longer than the propeller shaft I5,
is of extensible two-part telescoping construction
at 26, is provided at its front and rear ends with
universal joints 21 and 28, and extends‘ down
wardly and rearwardly at a little more gradual 40
inclination from the diiferential I! to the front
Fig. 3 is a rear view partially in section on the
line 3-3 of Fig. 2; and
'
end 29 of the rear shaft section 25, which end is
located at a point above and in advance of .the
Figs. 4 and 5 are views similar to‘Figy2 but
relation to a horizontal and the. chassis frame.
Having reference to the drawings, the chassis
includes a frame Ill and'two rear axle units ii
and 12. on which. the rear end of the frame is
'
The propeller shaft it of the rearmost axle 35
section being. taken on the line 2-2 of Fig. 1;
with the wheels occupying different levels with
‘
The propeller shaft l5 for the forward unit of
the dual axles is of extensible two-part telescop
ceptible of embodiment in other structurally dif
ferent forms coming equally within the compre
hensive scope of the appended claims.
In the drawings presented herewith, forming a
35 of a preferred embodiment, ' Fig. '1 is a plan view of the rear end of a motor
45
1,658,164 and Hendrickson Patent No. 1,994,133,
but it will be understood, of course, that other
supporting means may be employed without de
tracting from the benefits obtainable with-the
housing 30 of the forward axle unit.
The rear section 25 of the propeller 'shaft I8 is 45
of extensible two-part telescoping construction at
3|, is arranged substantially in axial alignment
with the front section 24 as-a rearward continua
tion of the latter when the two rear axle units
supported. The wheels l3 carrying the rear axle are in their normal positions, overlies the hous- 50
II are driven through a differential H from a a’ ing 30 of thel?rst axle unit, and is provided at
short propeller shaft 15 while the wheels I 6 car
its rear end with a universal joint 32 which is‘
rying the rear axle l2 are driven through a dif
connected to the differential H. ‘The ‘rear sec
ferential I‘! ‘from a separate relatively long pro
tion 25 is mounted adjacent its front .end in a '
55 peller shaft l8.v
bracket 33 which is located on top of the axle 55
2,119,811
that the lowering. of the wheels" l3 and‘the ele;
housing 34 and is preferably formed as an in
vating of the wheels It relative to the chassis
As hereinbefore indicated. the chassis frame is frame results in a tilting of the axle housings.
supported at opposite sides upon semi-elliptical II and i2 and a shifting of the'pivot points'4l
leaf springs 34 through shackles 35 at the ends and 45 in the opposite direction from. that just
tegral part of the latter. .
of the springs, which shackle connections are
fixed at one end of the springs and ?oat at the
described.
"
_
-
The result of such tilting is to maintain a most
favorable angle between theaxle housings‘ and
other end asis usual in this type of spring mount
ing 80 as -'not ‘to vinterfere with ?exing-“of the ' their respective propeller shafts, that is to an
approximately normal thereto, the tilting of the i
10 spring. These springs are provided intermediate housings being in a plane including thevertical 10.
their ends with downwardly extending brackets v
46' which are bifurcated to receive carrying beams plane of the propeller shaft andin substantial
- 31 which preferably increase in thickness toward ‘ alignment therewith. The degree of tilting
their medial points and arepivoted on pins 34 varies, it will be noted, with the extent to which
15 at such medial points to the lower ends of the the respective wheels rise above or'fall below
brackets 34. The ends of the beams 31 extend . the general level, the tilting of the axle housings
beneath the housings II and I2 and are there being ‘such as to inscribe generally an\arcuate
pivoted at l! to the brackets "which are ?xed path about the universal connection with its
relative to the axle housings.
:
> I‘
‘
propeller shaft.
_
'
‘
The particular embodiment of the invention
This construction distributes the weight of the
rear end of the chassis frame equally between all
'20
herein illustrated and heretofore described is not
four rear drive wheels, and any upward or down . to be construed as limiting the invention to such
ward movement of one or more of the wheels embodiment, as other structurally modi?ed forms
and arrangements‘ are, of course, contemplated
without departure from the vessence of the in 25
vention. For instance’, it will be apparent that'
instead of the links 42 and 48 extending towards
will not affect such equalization. Furthermore,
the wheels are perfectly free to move up or down ‘
relative to each other in traveling over bumps
or through depressions forming irregularities in
the roadway.
.
'
'
and being connected to the frame at intermediate‘ _
The Hendrickson Patents Nos. 1,658,164 and 'points 41 and 41 as illustrated, the link 42 may
1,994,133 disclose linkage connections to the axle be extended forwardly and the‘link' “extended 30
housings wherebyvto insure the maintenance of _ rearwardly to independent connections with the
the axle housings at a ?xed angle ‘perpendicular frame at points in front of and behind the wheels
to the chassis frame notwithstanding up and instead of between the wheels, in which case. the
'down movement of the wheels and axles. The links 42 and 48 would 'be connected with the
frame as before at vertically offset pointsbut 35
present invention comprehends means for'ef
fecting a slight tilting of the axle housings with the offset relation would be reversed, that is to
a modi?cation of the angle relative to the frame say, the connection of the link 42 with the framé'
as the wheels move upwardly or downwardly in would be below rather. than above the point of
order to maintain favorable approximately nor
connection of the, link 44 with the frame as
mal angles between the vertical planes through measured by the horizontal.
}
.
l
the axle housings and the respective propeller
' Iclaim:_
'
a
'
i. In .a motor vehicle of the dual rear axle
shafts.
'
_
driven type, a chassis frame, a propeller shaft _
To the upper portion of the forward axle hous
' ing II is pivoted at 41 a link 42 which at its rear and a differential associated wtih each axle hous
end is pivoted at 43 to a bracket 44 ?xed upon ing, a rigid crow connection extending between 45;
the chassis frame ll. Similarly, to the upper the lower sides of the housings and pivoted in-'
portion of the rear‘ axle housing I! is pivoted termediate thereof to the'frame, and means to
at 4‘ the rear end of a link 4‘, the; forward end tilt the axle housings and associated differentials
'of 'which link is pivoted at 41 to a bracket 4' to maintain ‘a substantially' constant angle to_
which may be associated ‘in an integral casting the propeller shafts to compensate for up and
with the bracket 44. It is to be noted that the down movements of the axles relative to. the
pivotal points 48 and 41, disposed at points inter
frame due to irregularities in the roadway, said
mediate the two axle housings I l and ii, are ver
means comprising independent link connections ‘
tically and horizontally offset.
between the upper sides of the housings and the
frame'at points on the frame vertically and hori
‘
Bycomparisonofl'igs.2,4and5itwillbeob
served that as the two wheelsforming the for
" ward unit of the dual axle construction assume
zontally
offset. _
'
'
2. m a motor vehicle of the dual rear axle '
driven type, a chassis frame, a propeller shaft and
a position above or below the wheels forming
the rear unit of. such construction, the angle of
the‘median planes through the forward and rear
-a bracket spring-connected to the frame, a cross
axlehousings to each other and to. the chamis
connection extending between one .side of the
a-‘differentlal associated with each‘ axle housing;
_ and pivoted intermediate thereof to the
frame is modi?ed'through a tilting of the same ‘ housings
bracket, and means to tilt the axle’ housings and
relative to the frame.
Comparing Fig.4 with Fig. 2 it will be observed associated differentials to maintain a favorable
a that as the front wheels 13 assume an elevated
substantially“ constant angle to. the propeller
poution relative to the frame and the rear wheels . shafts to compensate for up and down ‘movements
I‘ assume a lowered position relative to the of the axles relative to the frame due to irregu- >
frame the links 42 and 46 assume modi?ed angles larities in the roadway, said means comprising
- to the frame whereby the pivot point 4| upon independent link‘connections between‘ the op,- .
70 the housing vll is moved in an arcuate path up-‘ posite sides of the housings and the frame, the 70
wardly and forwardly relative to‘ the ?xed point point of link connection to, the frame of, one of
1
43 and the pivot point 45 uponthe housing I! is
moved downwardly and rearwardly relative to
the housings being below and horizontally offset
the ?xed'point 41. V
other housing.
' _'
Comparing Fig. 5 with Fig. 2 it will be observed
from the point of connection to the frame of the
'
3. In a motor vehicle of the dual rear axle II
2,112,811
driven type, a chassis frame, a propeller shaft and
a differential associated with each axle housing,
a bracket spring connected to the frame, a cross
connection extending between the lower sides of
the housings and pivoted intermediate thereof to
the bracket, and means to tilt the axle housings
and associated differentials to maintain a favor
able substantially constant angle to the pro
peller shafts to compensate for up and down
10 movements of the axles relative to the frame
due to irregularities in the roadway, said means
comprising independent link connections between
the upper sides of the housings and the frame
at points on the frame vertically and horizontal
15 ly offset and intermediate the two axles, the
point of connection to the frame of the rear
housing being below and to the rear of the point
of connection to the frame of the forward hous
. ing.
20
,
i 3
medial portion of the, springs, the‘ beams ful
crumed on the brackets, and longitudinally ex
tending rigid links pivotally connecting vertically
and horizontally offset points on the frame’ with
the axle housings above the axles, whereby to re
quire each axle and its housing to follow its re
spective propeller shaft up and down without
appreciable angular change relative to the pro
peller shafts.
'
‘
5. m a motor vehicle of the dual rearaxle
driven type, a chassis frame, a propeller shaft
and a differential independently associated with
10'
each axle housing, a rigid cross connection ex
tending between the lower sides of the housings
and pivoted intermediate thereof to the frame,
and means to tilt the axle housings and associated
differentials to maintain each a favorable angle
to its propeller shaft to compensate for up and
down movements of the axles relative to the
4. In a motor vehicle, the combination with \ frame due to irregularities in the roadway, said 20
means comprising independent link connections
a chassis frame, two rear axles and axle hous
between the upper sides of the housings and the
ings, and propeller shafts for the axles, of lon
gitudinally extending rigid side beams pivotally
connected with the axle housings 'below‘the axles,
25 springs on the chassis, brackets carried by the
frame at points on the frame vertically offset
' and intermediate the twov axles.
ROBERT T. HENDRICKSON.
25
Документ
Категория
Без категории
Просмотров
0
Размер файла
568 Кб
Теги
1/--страниц
Пожаловаться на содержимое документа