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Патент USA US2123298

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~ @12,1938.
H. s. w. Bom-GER am
MECHANICAL CONTROL MECHANISM
'_ 2,123,298
Patented July l2, 1938
42,123,292; N
UNIT-ED STATES PATENT OFFICE
MECHANICAL CONTROL MECHANISM
Hanns Stephan Wilhelm Böllinger and vWalter
Moritz Alwin Gottschalck, Frankenthal-Pfalz,
Germany, assignors to Klein, Schanzlin &
Becker Aktiengesellschaft, Frankenthal, Ger
many
ApplicationNovember 6, 1936, Serial No. 109,503
'
In Germany September’19, 1935
6 Claims.
The present invention relates to a mechanism
for operating a horizontally movable rod _by
(Cl. 711-472)
further depress the gas pedal from position B
means of a foot pedal, more particularly to a
mechanism as specified in which said foot pedal
5 is alsoused for-controlling the gas supply to an
internal combustion engine which drives a vari
able speed transmission in which two different
speed transmissions can be set by mean's of said
horizontally movable rod.
An object of the present inventionis to provide
l0
‘
into position C. The gas throttle is thereby not
further moved because its lever 63 touches abut
ment 63’ and link 60 compresses spring 6I.
_
Rod 2 which is linked to lever I slides in a f,
slide 4 which is rigidly connected to two-arm
lever 5, 5' which lever swings about fulcrum 6.'
When gas pedaly I’ is depressed and reaches posi
tion B, block 3 which is rigidly connected with
rod 2 abuts slide 4 and moves lever 5, 5' in coun- 10
a mechanism in which, by operating a foot pedal, " terclockwise direction. Arm 5’ is provided With
the fuel supply to an internal combustion engine a toothed segment, 1 which is in mesh with gearV
Wheel 8. To wheel 8, a shaft 9 is rigidly -con-'
as well as to a speed changing mechanism is con
trolled and any desired speed can be 'obtained nected which carries disc I0 to Which pawl II is ‘
movably connected. Pawl II engages a toothv 15
of ratchet wheel I2 which is rigidly connected to
‘shaft I4. Upon rotation of shaft 9 and disc I0, ‘
of a handle or the like.
`
Another object of the present invention resides ratchet wheel I2 and shaft I4 are also rotated
l5 independently from the fuel control merely by
operating said pedal and without manipulation
in the provision of a mechanism as set forth in . and this against the‘tension of spiral spring 22
20 the paragraph next above in which the operation
of the pedal takes place in the conventional man
ner and no ~unusual motions of the foot for oper
ating the pedal, such as tilting and the like, are
required.
25
`
‘
ì
Further and other objects of the present in
vention will be hereinafter set forth in the ac
companying` specification and claims `and shown
.in the drawing which, by way of illustration,
which is unwound at such operation. To the endv 2o
of shaft'I4, a crank I5 is connected which car
ries crank pin I6. This pin slidably moves in
slot l1 which is part of rod I8. To rod I8, fork
64 operating clutch engaging member 65 is con
nected which, in the position shown in Fig. 1, is 25
holding clutch 66 in engaged position. Clutch
66 consists substantially of two parts, one of y
which is designated by numeral B0 and carries
a toothed wheel 68 and clutch discs 8i, which
shows what we now consider to be a preferred
’ are axially but not rotatably movable within part \\3o`
30 embodiment of our invention.
86. and rotates freely on shaft 61. The other
In the drawing:
part comprises friction discs 82, which are axially
Fig. 1 is a diagrammatic layout of a mecha
movable but not rotatable on shaft 61. Only
nism according to the present invention.
Fig. 2 is a diagrammatic‘layout of a modified when clutch 66 is engaged does said part carrying
Wheel 63 rotate with shaft 61. Wheel 68 is con- 35
35 mechanism according to the present invention.
Fig.l 3 is a diagrammatic layout of another stantly in mesh with gear wheel 69 which is rigid
ly connected with shaft 10. To the latter, an
modification of the present invention.
Referring more particularly to Fig. 1 of the _other toothed wheel 1I is rigidly connected, which
drawing, I represents a lever to which a pedal I' is constantly in mesh with toothed rim 12 of that
E is rigidly connected. To this lever, a gas throt A part of clutch 13 which is rigidly `connected with 40
tle 80 vof a motor driving amotor car or rail car ï shaft 14. When clutch 66 is engaged, power is
or the like is connected by means _of link 60, transmitted from shaft 61 by means of gear
`spring 6I, rod 62,'and crank 63. The position ‘ ' wheels 6B, 69, auxiliary shaft 10, and gear wheels
of pedal I’ designated by letter A corresponds
1I, 12, the latter forming part of clutch 13, to
position of the pedal designated by .letter B coin
tion B to position C, slot I1, rod I8, and clutch
engaging member 65 are moved to the right,
whereby clutch 66 is disengaged and clutch 13
is engaged. Shaft 61 is then directly connected 50
“i to light running condition of the motor, i. e., with ' shaft 14. Upon rotation of crank I5 by 180° 45
the gas supply almost completely throttled. The which takes place when pedal I' moves from posi- -
cides with the full load condition of the motor,>
i.
when the gas throttle is wide open.
At
50 this point, a `variable speed transmission con
’ nected with the motor may be set at ñrst speed.
The operator ,now desires. to leave the throttle
-wide open and change over to second speed.
_
with shaft 14 and the transmission is set for sec
ond speed. In this case,- wheels 68, 69, shaft 10,
_
and wheels 1I and 12 are in light running `con- '
For this purpose, all he has to do with a mech
dition. `Power is then transmitted from shaft 61
anism according to the present invention isV to
through elements 83, which‘correspond to ele- 55
2, 123,998
ments 8|, to elements 84, which correspond to
elements 82 in clutch 66, to the shaft 14. Upon
rotation of discs I8 and I2 by 90°, notch 16 of
rod I8 cooperates with ball 18, and clutch en
gaging member 65 is in neutral position. No
power is then transmitted from shaft 61 to shaft
14. An abutment 28 is provided for lever 5 which
limits the movement of pedal I beyond posi
tion C.
v
If the operator now releases pedal I', lever I
position which is intermediary B and C, then disc
32 is revolved by 90° only, and rod 35 is pushed
to the intermediary or neutral position which is
designated-by the letter N. Upon releasing pedal
I', lever | turns clockwise due to the _action of
s'pring 2|’. Projection 26 and rod 21 follow arm
25 due to the action of spring 36 which then un
winds, whereas wheel 32 and rod 35 remain in
position asis the case with wheel I2 and rod I8
at the same pedal operation. Ratchet wheel 32 10
is pulleìi- backwards by means of spring 2| which is definitely held in position by means of plate
had been expanded when lever I was depressed. spring 31 which engages one of its teeth.
With lever I, rod 2 and with it block 3 are pulled
In the embodiment of our invention according
upwards, whereby slide 4 follows block 3 because to Fig. 3, lever 48 corresponds to lever I in Fig. 1,
lever 5, 5' is turned in clockwise direction by rod 4| to rod 2, block 42 to biock‘3, slide 43 to
tooth wheel.8 connected to shaft 3, which latter slide 4, lever 44 to lever 5, abutments 53 and 59
is turned counterclockwise by the recoiling spring to abutments‘IS and 28, respectively, and fulcrum
22. One end of spring 22 is connected to a sta« ' 45 to fulcrum 6 of Fig. 1. Lever 44 carries a pawl
tionary part 22’ and the other end to disc I8. 46 which is kept in engagement with ratchet wheel
20 Ratchet wheel |2, which is held in position by
48 by means of spring 41. To ratchet Wheel 48,
means of spring I3, shaft I4, crank I5, rod I8, a gear wheel 43 is connected which engages gear
and clutch operating member 65 remain in posi
wheel 58 which is rigidly connected to shaft 5|.
tion and clutch 13 remains engaged. .This all The latter carries a cam member 52 which, in
takes place when, upon clockwise movement of the embodiment _shown in Fig. 3, has the shape of
25 lever I, pedal I' reaches position B. If lever I is
a disc, the contour of which is in sliding engage
further turned in clockwise direction, lever 5 ment with lever 53 which is held to said disc by
rests against abutment I 3 and block 3 leaves slide means of spring 55. The free end of lever 53
4. The gas throttle then closes until it is almost engages a notch-like part 56 of rod 54 and, when
fully closed when pedal I' is in the position swinging about fulcrum 51, moves rod 54 axially.
30 marked A.
i
To rod 54, a gear changing means, for example,
If pedal I'- is again depressed beyond position
B, clutch operating member 65 is moved to the
left, whereby clutch 13 is disengaged and clutch
66 engaged. Should the operator not be satis?ed
15
20
25
30'
a clutch operating member as shown in Fig. 1
`may be connected; To lever 40, a gas throttle
may be connected in the same manner _as is
throttle 88 in Fig. 1.
The mechanism shown in Fig. 3 operates as 35
to move from position C back to position B and follows: when pressing lever 48 down against the
presses the pedal once more to position ' C;
tension of spring 2|" so that the pedal 48' moves
thereby the other speed is set. It may be desirable from position A. to position B, rod 4| moves
to indicate the position of rod I8 particularly freely in slide 43. When the pedal reaches posi
40 when it is in a position which indicates neutral tion B, block 42 abuts against slide 43 and lever 40
position of the clutch operating member 65. This 44 is pressed downwards against the action of
can be accomplished by providing rod I3 with' spring 51. Pawl 46 then turns ratchet wheel 48
notches. 15, 16, and 11 into which a ball 18 is and tooth wheel 48 in counterclockwise direction,
resiliently pressed by means of a spring 19.
whereby wheel 58 and shaft 5| are turned clock
In the embodiment of the present invention wise. Disc 52 then swings over to the right also 45
45
which is shown in Fig. 2, instead of lever 5, 5’ in clockwise direction followed by lever 53 and
and segment 1 of the mechanism shown in Fig. 1. rod 54. When pressing pedal 48' from position
an axially movable rod 21 is used which is pro
B to position C', disc 52 is turned by 180° and rod
vided with a projection 26 which is engaged by the 54 moves from its leftmost position to its right
end of _an arm 25 which is'rigidly connected to most position. By depressing lever 48 to a posi
50
lever I. Pedal |’ of the mechanism shown in tion which is intermediary B and C, the right end
Fig. 2 must be depressed against the tension of of lever 54 moves to the position designated by
spring 2|'. Rod 21 is provided with a rack 24 letter N, which is neutral position. When releas
which engages gear wheel 28 which corresponds ing pedal 48', lever 48, due to the action of spring
55 to wheel 8 in Fig. 1. The movement of rod 21 to 2|", moves clockwise followed by rod 4| and 55
the right is limited by abutment 33 which corre
44 due to the action of spring 51. Ratchet
sponds to abutment I3 in Fig. 1. Movement of lever
wheel 45 is held inposition by plate ,spring 58
rod 21 to the left is hunted by abutment 38 which which engages one ,of its teeth, and also shaft
corresponds to abutment 28 in Fig. 1. Wheel 28
is rigidly connected with-shaft 23 to which an arm 5I and rod 54 remain in their position as does rod
'
38 is fixed which carries pawl 3|. When pedal I' I8 in Fig. 1 when pedal I’ is released.
While we believe the above described embodi
is depressed, shaft 23 turns çounterclockwise and
winds up spring 36. Pawl 3| engages ratchet ments of our invention to be preferred embodi
wheel 32 which is provided with pin 33 which ments, we wish it to be understood that we do
05 slidingly moves in slot 34 which is part t rod not desire to be limited to the exact details of
35. Rod '35 corresponds to rod I8 in Fig. l,1 and design and construction shown and described, es
for obvious modifications will occur to a person
may operate a gear changing member, for ex
ample, a clutch operating member as is shown in skilled in the art.
What is claimed is:
Fig. 1. To lever |, a gas throttle may be con
1. A control apparatus comprising pedal means,
70 nected in the same manner as shown in Fig. 11I `
actuating means, a one-,way coupling comprising 70
Upon depression of pedal I' in Fig. 2 from posi
tion B to C, arm 38 and ratchet wheel 32 are a driving memberand a driven member, a first
turned by 180° "and rod 35 is pushed from its set of connecting xreans connected to and con
35 with the speed set by rod I8, he permits pedal I’
,leftmost position, which is shown in Fig. 2, to its
rightmost position. If pedal I' is depressed to a
necting said pedal means and 'said driving mem- .
ber, and a second set of connecting means con
nected to and connecting said driven member and
3
2,123,298
necting means can move in one direction inde
said actuating means, said drive and driven mem
bers of `said one-way coupling being so arranged
that said first mentioned connecting means can
pendently from said second set of connecting
move-in one direction independently from said
means.
second mentioned connecting means.
said actuating means, said members of said cou
pling being so arranged that said first set of con
2. A control apparatus comprising pedal means,
fuel supply control means connected with said
pedal means, speed changing means comprising
operating means, connecting means operatively
10 interconnecting said pedal means and said oper
ating means, said connecting means comprising a
one-way lost-motion coupling adapted to trans
n
5. In a control apparatus, pedal means, a lost
motion connection composed of two members,
one A,of said members being connected to said
pedal, a’one-way coupling having a driving mem
ber and a driven member, means connecting
said driving member to the other member of said
lost motion connection, actuating means, means
mit only part of the motion of said pedal means ‘ y connecting the driven member of said one-way
to said operating means, and another one-way coupling .with saidactuating means, said drive
coupling interposed in said connecting means and
in series with said iirst mentioned coupling» with
respect to the flow of the power 4exerted on said
pedal means from said pedal means to said oper
ating mean .
_
and driven members of said one-way coupling
being so arranged that said first mentioned con
necting means can move in one direction inde
pendently from said second mentioned connect
ing means and power accumulating means con
nected with said -first mentioned connecting 20
means and being adapted‘to be loaded upon op
pedal means, speed changing means comprising ' eration of said pedal means and to operate said
3. A control apparatus comprising pedal means,
20
fuel supply control means connected with said
operating means, ~connecting means operatively
interconnecting said pedal means and said oper
25 ating means, said connecting means comprising
a one-way lost-motion coupling adapted to trans
mit only part of the motion of said pedal meansl
to said operating means, another one-way cou
30
plinginterposed in said connecting means and in
series with said first mentioned coupling with re
spect to the now of power exerted on said pedal
means from said pedal means to said operating'
first mentioned connecting means when said
pedal means are released.
`
` 6. In a control apparatus, pedal means, a lost 25
motion connection composed of two members,„„
one of .said members being connected to saidv
pedal, a one-way coupling having a driving mem
berand a driven member, means connecting said
driving member to the other member of said lost 30
motion connection, actuating means, means con
necting the driven member of said one-way cou
pling with said actuating means, said drive a'nd
motion coupling with said other coupling, and driven members of said one-way coupling being
so arranged that said first mentioned'connecting 35
35 resilient means connected with said member and . >means can move in one direction independently
adapted to store up energy when said member is
moved in one direction, due to the action of said from said second mentioned connecting means,
the member of said lost motion connection which
pedal means, and to move said member in oppo
site direction independently 'from said pedal is connected with said pedal being adapted to
freely move for a predetermined distance before 40
means by means of the stored up energy.
4. In a control apparatus, pedal means, a lost it engages the other member of said lost motion
' motion connection composed of two members, one connection when said pedal >means are actuated,
of said members being connected to said pedal, whereby said pedal means can be moved fora pre
a one-way coupling having a driving member and determined distance before said actuating means
u
a driven member, means connecting said driving are actuated.
45
member to the other member of said lost motion HANNS STEPHAN WILI-IEIM BOLLINGER.
connection,` actuating means, means connecting WALTER. MORITZ mALWIN GO'ITSCHALCK.
the driven member of said one-way coupling with
means, a member connecting said one-way lost
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