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Патент USA US2411632

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NOV. 26, 1946.
"
H, MORAN
2,411,632
AUTOMATIC EMERGENCY BRAKE RELEASE_FOR MOTOR VEHICLES '
'
Filed June 16, 1945
It
I 'II/ALJNAIJA
I '
v, V
INVENTOR
HAROLD
-
‘
MORAN '
ATTORNEY
2,411,632
Patented Nov. 26, 1946
UNITED STATES PATENT‘ OFFICE‘
AUTCBMATIC EMERGENCY BRAKE RELEASE
FOR MOTOR "EHIOLES
Harold Moran, Lincoln Park, N. J.
Application June 16, 1945, Serial No. 599,874
‘
8 Claims.
, 1
(Cl. 192-3)
2
I
'
‘
Fig. 6 is a schematic wiring diagram of the de
'
More speci?cally the invention proposes an
automatic emergency brake release for a motor
vehicle having a depressible accelerator pedal, an
V
1
line 5-5 of Fig. 4.
provements in an automatic emergency brake re
lease.
'
Fig. 5 is a vertical sectional view taken on the
This invention relates to new and useful im
vice.
The automatic emergency'brake release in ac
cordance with this’ invention is used in combina
tion with a motor vehicle generally indicated by
emergency brake, and an ignition switch. 7 It is
the reference numeral ID. This motor vehicle
proposed to characterize the newbrake release by
is provided with a depressible accelerator pedal
a mechanism‘for releasing the emergency brake .
when the accelerator pedal is depressed. It is 10 H as generally known and used at the present‘
time for controlling the gasoline supplied to the
proposed to associate latching means with the ac
motor of the vehicle. The details of this pedal
celerator pedal to normally latch it in a raised
and connections will not be given in this applica
position so that it cannot be depressed. Solenoid
tion since it forms no part of the invention. This
controlled, means is also provided for releasing
said latching means when the ignition switch-is 15 motor vehicle In is also provided with the usual
turned on. I
I
ignition lock'switch l2 which is schematically il
.
The automatic emergency brake release will ’ .lustrated in Fig. 6 because it also is a general and
Well known part in motor vehicles. The vehicle
‘avoid mishaps in the operation of a motor vehicle.
H), is provided with a standard, or customary
It will prevent the operator from forgetting to re
lease the emergency brake and drive the car with 20 emergency brake M which may be of any design
and construction provided it includes a ratchet
the brake on causing damage to the braking sys
tooth member I5 engageable by a bolt It for hold
tem. 'It will eliminate the bother and the‘neces
ing the brake set. This arrangement is also
sity of the operator of releasing the brake; It
will ' prove of exceptional advantage in ‘emer
‘ standard in construction, ‘and will not be shown I
gencies when the operator becomes engrossed in 25
in detail.
conversation or for other reasons forgets to re
The bolt I6 is slidably mounted through a bolt
housing ll which is mounted upon the side wall
of the vehicle Iii. An expansion spring id is con
lease thebrake.
.
-
An important feature of the-invention resides
tain'ed within the housing IT. This expansion
in the fact that the accelerator pedal will be
latched in a raised position, so that children play 30 spring acts between a pin I9 mounted through
the bolt l6 and a washer 20 rested against the
ing in the vehicle cannot accidently release the
bottom wall of the housing IT. The spring is
emergency brake and cause the vehicle to run
acts to resiliently urge the bolt it against the
wild.
- Still further the invention proposes a certain
desirable construction for an- automatic emer
gency brake release, which may be manufactured
and sold at a reasonable cost.
,
>
I
ratchet tooth member I5.
‘
The stationary horizontal rod 22 is arranged
transversely ‘of and to the front of the accelerator
pedal l I. This rod 22 is mounted in and projects
from ‘a standard 23 rested on ‘the ?oor 213 of the
motor vehicle It. A cap screw 25 is mounted on
and of the objects and advantages thereof, refer
ence will be had to the following description and 40 the'standard 23 and ?xedly supports the hori
accompanying drawing, and to the appended
zontal rod 22.
A lever 21 is‘p-ivotally mounted on the rod 22
claims in which the various novel features of the
invention are more particularly set forth.
and'extends forwards and rearwards. The front
end 28 of the lever 21 engages against the bottom
In the accompanying drawing forming a mate
45 face of the accelerator pedal I l. The lever 23' en
rial part of this disclosure:
" '
gages about a flange 29 formed or mounted on
Fig. 1 is a fragmentary longitudinalvsectional
the rod 22 by which the lever 2'! is non-slidably
view of a motor vehicle equipped ‘with an auto
mounted on the rod. The lever 2'! has a remov
matic brake release constructed in accordance
able‘top section 30- whichwhen removed frees
with this invention.
‘
Fig. 2 is a fragmentary horizontal sectional 50 the lever 21 so that it may be removed from the
rod 22, and may be replaced whenever desired.
View taken on the line 2-2 of Fig. 1.
A bell crank 32 is lpivotally supported by one of
Fig. 3 is a fragmentary enlarged horizontal sec
its arms 33 upon standards‘ 34 which are mounted
tional view taken on the line 3-3 of Fig.1. ‘
on the- ?oor24 of the vehicle. The other arm
. Fig. 4 is a fragmentary‘ enlarged transverse
55 35b: the'bell crank 32 connects with a link-36
sectional view taken on the line 4-4 of Fig. 2.
For further comprehension of ‘the invention,‘ ‘
2,411,632
4
3
which is pivotally connected with the bottom
21 cannot turn counterclockwise because the
clutch element 5| ?xedly connects it with the
clutch member 50 which in turn is non-rotatively
connected by the pawl 56 and ratchet teeth 55
end of the bolt [5. The arm 33 of the bell crank
32 is provided with a radially projecting arm 38
which extends over and against the rear end 39
of said lever El. When the accelerator pedal II
with the score 45 of the solenoid and the core 45
is pressed downwards the lever 2'! will be pivoted
is non-rotatively connected by the socket 49 and
so that the rear end 39 moves the radially pro
jecting arm 38 turning the bell crank 32 which
non-circular portion 48 with ‘the stationary rod
pulls downwards on the link 36 and moves the
When the ignition lock I2 is turned on, current
bolt downwards from the ratchet tooth member 10 will flow through the coil 29 and cause the core
45 to move slightly inwards so that the tapered
l5. This releases the emergency brake l4. A
clutch member 50 is free from the clutch element
spring 40 is connected with the ratchet tooth
5|, freeing the lever 21. The accelerator pedal
member [5 for urging the emergency brake into
H may now be depressed. Therefore as soon as
open condition. When the brake is reset, the
ratchet tooth member l5 must be moved back to 15 the operator starts up the motor of the vehicle
and depresses pedal 1 I, the emergency brake will
its original position so that it may again be held
be released.
by the bolt I6. A spring 4| connects with the
While I have illustrated and described the pre
lever 21 and with the floor board 42 of the mo
tor vehicle It] and acts to normally urge the front
ferred embodiments of my invention, it is to be
end 28 of the lever against the accelerator pedal 20 understood that I do not limit myself to the pre
II.
cise constructions herein disclosed and the right
is reserved to all changes and modi?cations com
A solenoid M is mounted upon the floor 24
of the motor vehicle and is provided with a core
ing within the scope of the invention as de?ned
in the appended claims.
45 which is resiliently extended. An expansion
spring 46 urges the core 45 outwards. This ex
Having thus described my invention, what I
claim
new, and desire to secure by United
pansion spring A15 is mounted within the solenoid
States Letters Patent is:
M. A removable back plate 41 holds the spring
46 in position. The front end of the core 45 slid
1. In combination with a vehicle having a de
ably and non-rotatively engages the stationary
pressible accelerator pedal, an emergency brake
rod 22. More speci?cally, the stationary rod 22 30 having a member with ratchet teeth for engage
ment by a bolt for holding said brake set, and
an ignition switch, means for releasing said brake
shaped opening 49 formed in the outer end of the
when said pedal is depressed, means for latching
core 45.
said pedal in a raised position, solenoid controlled
A tapered clutch member 55 having an exter 35 means for releasing said latching means, and
a circuit including said ignition switch of said
nally serrated face is rotatively mounted upon
is provided with a square or other non-circular
section 48 which engages in a complementary
the outer end of the core 45 and normally en
gages a serrated clutch section 5| coaxially
'
vehicle for operating said solenoid controlled
means.
2. In combination with a vehicle having a de
formed upon the pivot of the lever 27. The ta
pered clutch member 55 is held from coming off 40 pressible accelerator pedal, an emergency brake
having a member with ratchet teeth for en
of the outer end of the core 45 by a small ?ange
gagement by a bolt for holding said brakeset,
53. It is held from moving inwards by a large
flange 55! against its back face. This large ?ange
and an ignition switch, means for releasing said
54 is formed with ratchet teeth 55. A pawl 56
brake when said pedal is depressed, means for
is mounted on the back face of the clutch mem
latching said pedal in a raised position, solenoid
ber 55 and is urged into engagement with the
controlled means for releasing said latching
ratchet teeth 55 by a small leaf spring 57. The
means, and a circuit including said ignition switch
pawl 56 and ratchet teeth 55 free the clutch
of said vehicle for operating said solenoid con
member 55 to turn in one direction relative to
trolled means, said means for releasing said brake
the core 45.
50 including a bolt engaging ratchet teeth formed
The coil of the solenoid 44 is illustrated in Fig.
on a member of said brake.
6 and is indicated by the reference numeral 59.
3. In combination with a vehicle having a de
This coil is connected in series with the ignition
pressible accelerator pedal, an emergency brake
lock switch I 2 and with the battery 60 of the mo
having a member with ratchet teeth for en
tor vehicle.
gagement by a bolt for holding said brake set,
The operation of the automatic emergency
and an ignition switch, means for releasing said
brake release is as follows:
brake when said pedal is depressed, means for
Normally the accelerator pedal II is in its
latching said pedal in a raised position, solenoid
raised position. It cannot be maintained in a
controlled means for releasing said latching
depressed condition, unless it is held depressed. 60 means, and a circuit including said ignition switch
The spring 4| pivots the lever Z'iclockwise in
Of said vehicle for operating said solenoid con
relation to Fig. l. The pawl 56 and ratchet teeth
trolled means, said means for latching said pedal
55 are so directed that the lever 21 is free to be
including a clutch member engageable with a
moved up the spring Al, and consequently the
complementary clutch element on a lever having
one end engaging beneath said pedal, and means
accelerator pedal II will always assume a raised
position when it is released.
for latching said lever.
If the ignition lock #2 is 01f, no current ?ows
4. in combination with a vehicle having a de
through the solenoid M. The spring 46 then ex
p-ressible accelerator pedal and an emergency
tends the core 35 so that the tapered clutch mem
brake having a member with ratchet teeth for
ber 55 engages the complementary clutch ele 70 engagement by a bolt for holding said brake set,
a spring urged bolt engaging said ratchet teeth,
ment 51 formed or mounted on the lever 21. The
lever 2‘! is in a locked condition and can not
a stationary horizontal rod transversely of and
pivot. The accelerator pedal H now is locked.
to the front of said pedal, a lever pivotally
It can not be pressed down because it rests
mounted on said rod and having its front end
against the lever 21 which is locked. ‘The lever
engaging'against the bottom of saidypedal, a
2,411,632
bell crank pivotally supported by one of its arms,
a link connecting the other arm of said bell crank
with said bolt, a radial arm projecting from the
second mentioned arm of said bell crank and
extending over and against the rear end of said
lever, a solenoid having a resiliently extended core
with its outer end coaxially with and slidably
connected with said stationary rod, a tapered
6
with said core freeing said pedal to idle up
wards, and a switch for energizing said solenoid
for disconnecting said clutch member from said
clutch element, said horizontal rod being pro
vided with a non-circular end portion engaging
a complementary recess formed in said core by
which said core is slidably connected with said
stationary rod.
clutch member rotatively mounted on said core
7. In combination with a vehicle having a de
a spring urged bolt engaging said ratchet teeth,
a stationary horizontal rod transversely of and
to the front of said pedal, a lever pivotally
mounted on said rod and having its front end
ond mentioned arm of said bell crank and ex
tending over and against the rear end of said
lever, a solenoid having a resiliently extended
core with its outer end coaxially with and slid
and normally engaging a complementary clutch 10 pressible accelerator pedal and an emergency
brake having a member with ratchet teeth for
element coaxially of the pivot of said lever, a
engagement by a bolt for holding said ‘brake set,
pawl and ratchet connecting said clutch mem
a spring urged bolt engaging 'said ratchet teeth,
ber with said core freeing said pedal to idleup
a stationary horizontal rod transversely of and
wards, and a switch for energizing'said solenoid
for disconnecting said clutch member from'said 15 to the front of said pedal, a lever pivotally mount
ed on said rod and having its front end engaging
clutch element.
against the bottom of said pedal, a bell crank
5. In combination with a vehicle having a de
pivotally supported by one of its arms, a link
pressible accelerator pedal and an emergency
connecting the other arm of said bell crank with
brake having a member with ratchet teeth for
engagement by a bolt for holding said brake set, 20 said bolt, a radial arm projecting from the sec
engaging against the bottom of said pedal, a
bell crank pivotally supported by one of its arms,
ably connected with said stationary rod, a tapered
core with its outer end coaxially with and slid- '
for disconnecting said clutch member from said
clutch element, said stationary rod being pro
clutch member rotatively mounted on said core
and normally engaging a complementary clutch
a link connecting the other arm of said b-ell crank
element coaxially of the pivot of said lever, a
with said bolt, a radial arm projecting from the
pawl andratchet connecting said clutch mem
second mentioned arm of said bell crank and
extending over and against the rear end of said 30 ber with said core freeing said pedal to idle up
wards, and a switch for energizing said solenoid
lever, a solenoid having a resiliently extended
ably connected with said’ stationary rod, a ta
pered clutch member rotatively mounted on said
core and normally engaging a complementary
vided for a ?ange engaging said lever in the na
ture of a thrust bearing for holding said lever
from sliding on the rod.
'
clutch element coaxially of the pivot of said
8. In combination with a vehicle having a de
lever, a pawl and ratchet connecting said clutch
pressible accelerator pedal and an emergency
member with said core freeing said pedal to idle
brake having a member with ratchet teeth for
upwards, and a switch for energizing said solenoid
for disconnecting said clutch member from said 40 engagement ‘by a bolt for holding said brake set,
clutch element, said bolt engaging through a' ' a spring urged bolt engaging said ratchet teeth,
av stationary horizontal rod transversely of, and
housing and said spring being located within said
to the front of said pedal, a lever pivotally mount
housing and acting between the housing and a
ed on said rod and having its front end engaging
pin on said bolt.
6. In combination with a vehicle having a de 45 against the bottom of said pedal, a bell crank
pivotally supported by one of its arms, a link
pressible accelerator pedal and an emergency
connecting the other arm of said bell crank with.
brake having a member with ratchet teeth for
said bolt, a radial arm projecting from the sec
engagement by a bolt for holding said brake, set,
ond mentioned arm of said bell crank and ex
a spring urged bolt engaging said ratchet teeth,
a stationary horizontal rod transversely’of andv 50 tending over and against the rear end of said
lever, a solenoid having a resiliently extended
to the front of said pedal, a lever pivotally mount
core with its outer end coaxially with and slid
ed on said rod and having its front end engaging
ably connected with said stationary rod, a tapered
against the bottom of said pedal, a bell crank
pivotally supported by one of its arms, a link
connecting the other arm of said bell crank with
said bolt, a radial arm projecting from the sec
ond mentioned arm of said bell crank and ex
tending over and against the rear end of said
lever, a solenoid having a resiliently extended
core with its outer end coaxially with and slid 60
ably connected withsaid stationary rod, a tapered
clutch member rotatively mounted on said core
and normally engaging a complementary clutch
element coaxially of the pivot of said lever, a
pawl and ratchet connecting said clutch member 65
clutch member rotatively mounted on said core
and normally engaging a complementary clutch
element coaxially of the pivot of said lever, a
pawl and ratchet connecting said clutch mem
her with said core freeing said pedal to idle up
wards, and a switch for energizing said solenoid
.for disconnecting said clutch member from said
clutch element, said core being provided with
?anges located adjacent the faces of said tapered
_member for rotatively supporting said clutch
member.
HAROLD MORAN.
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