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Патент USA US2135097

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Nov. 1, 1938.
Filed Feb. '12, 1938‘
f Nov. 1, 1938.
w. R slLL‘lNsls?Lr-iy '
Filled Feb.‘ 12, 193sv
Z '
~ ' 2,135,097’
~ ' ,2 Sheets-Sh‘e‘et‘ 2
, Patented Nov. 1, 14938 "
."fTRAILE, it
' ’
RQQBiIIingsIeyQZDaytona Beach, Fla.v ' x
; [I
Application February 12,}1938, Serial No.5 190.339.‘, 4
' '
“a 188-112).
1' ~ My ‘invention relates-to improvemerits
trail- . "
i2il-ypivot'ally conh'ectra at the;lowen-endthereof ‘
‘ ers and ‘more particularly to automatic brake
to adraw barJZIJsecured to the tow carv 22. .’,Sub-.
‘ applying mechanism adapted for'controlbyi-the > jacent'the
pivot connecting said arm to said draft
is. mounted a pivoted rlinlr. 23
One of thetprincipal objects of my invention is pivotally' connected
at 24*‘to‘ the ‘outer end of
> to provide a-brake.u-operatingxmechanism“that -the {connecting .rod as‘
18.‘ The'front end ,of; the
can be easily and expeditiously applied ‘totrailers V cylinder I6 is: provided with ‘a depending iflange‘
'having'the two‘or‘fo‘ur wheel brake systems‘ ~
:25 ‘having-fashioned thereon a bearing26-1for "
= “Another object ofmy invention is to provide a ~slidably receiving. therethrough‘ one endxfof a
brake‘ operating/mechanism applied to :"trailers
plunger rod 21.. The opposite end ofisaid'plunger
whereby the ‘ same is automatically" ‘operated, -- rodais pivotally connected to the arm 20 by means 10
‘ upon the accidental disconnection of thetowlcar.
ofjfa link‘ 2B.‘v A collar‘ 29 is ,iriountedonis'aid
‘1A..still'further object of my. invention is'to plunger. rod 21 ‘and movement .in one'directionv '7
"provide a brake. operating mechanism that/is ' .relative
to» the rod is limited by: a. ‘.‘transv'erselyf 3.
capable. of. operation: independent ‘ofthe “:tow' ABXtendinaPin-QIJ;
“A ‘coil. Spring ‘ 3 i5- is 'mounted,‘ 1:
about said‘ plunger rod and interposed :between '
Other objects and advantages will be'apparent
‘from ‘the. following description; ‘appended. claims
' the ‘collar 29 and bearing 26,‘-the spring serving I .
:“Referring todrawingsJ
the drawings-wherein
refer release'rthe brakes. 1-
.to urge the, rod 18, through the connected parts,
. I
. .
ence characters" designate ‘:like ‘parts throughout . ~17 ..'_I'he lower‘forward endof the‘draftvmernberis;
provided» with a bu?e'r132 'secured‘iwithincthe
channel- by means of a transversely '_ extending
Fig.1 is. a top plan view; Tor
invention mus- ' ,bracket ‘33, said buifer .serving to;,:limitr:and_
application ‘to a trailersattached'to a cushion the ‘outward
movement. . of_.;the.' arm_.~20.
‘ trating its
_ . ' > Pull exerted ‘on ‘the draft. bar .21 .- through the ‘
Fig. 2 is a section view on line 2—_l-2 of Fig. 1. medium of the tow car 22.iwill cause the arm'20 25
I Figj3 is alsection vviewf‘online 3-4. of Fig. 2. ~ to_contact»the buffer ‘ 32 causing the :connecting
Fig. 4 is a fragmentary longitudinal sectional "rod [8 to positionthe piston l'lgat‘ the forward
view of a modi?ed form.
Fig. 5 is alongitudinal sectional view'rof another
-‘ end of the. cylinder 16 thereby effecting a release
* of the brake’ mechanism in relation to the 30
wheels l2.
‘ Fig. 6 is a sectional view on line 6-6 of Fig. 5.
In practicing my invention,‘ particular ' refer
Deceleration of the speed of‘ the tow, car‘22
will exert pressure on the arm 20 intan opposite
ence being had to the preferred embodiment il
direction causing the piston ll to be moved to
lustrated in Figures 1 to 3 inclusive of the‘ draw» wards
the opposite-end of the cylinder, through
ings, there is illustrated a typical form of trailer
the medium‘ of'the connected mechanism, and
‘ chassis I!) having securedtheretoan axle II ‘on actuate
the braking mechanism in the well known
_ which is‘mounted wheels l2 provided with a typ
ical form of hydraulic ‘brake mechanism l3.
The spring 3| functions together with the cor
V'I'he front of the chassis has secured thereto a related “parts to maintain‘v the' arm‘in normal
draft bar in the form of an inverted U-shaped
channel iron I 4 by means of a connecting member operating‘ position and prevent the, application of
|5.; Positioned within said draftbar or mem; the brakes-when the tow car and-trailer; are
her is a cylinder I 6 having a piston I‘I operable traveling over substantially level ‘ground—due to
therein by means of a connecting rod l8 secured
thereto. The cylinder. I 6 is connected to‘the.
inequalities in the road surface. 3
The form illustrated in Fig. 4 comprises the
brake mechanism I! by means of a hose .con-' depending arm 40 provided with a ball shaped ‘_
nection I9.v Actuation of the piston in. unedi
head 4| for. engagement within ‘a similar. shaped
rection will force liquid through the connection
.50 19 for applying the brakes to the wheels and
hinged sectional sleeve 42.’ A spring Dressed
collar 43 is provided to normally surround the
reverse movement will release the ._ brakes; said > hinge portions of the sleeve to maintain the sec-H
parts being of a well known construction and
tions in locked position about thehead. Down
‘ Pivoted on a shaft l9’ within thedraft member
' ward movement of ‘the collar from about the
‘sleeve will permit the sections'to be opened and a ‘
. M, at the front end thereof, is 9. depending arm > the. depending arm detached therefrom, thus pro
.2 ,
viding an effective means for connecting and dis
1. A trailer brake operating mechanism, com
prising, in combination, a trailer chassis having
connecting the trailer from the tow car.
In the forms illustrated in Figures 5 and time ; wheels provided with braking mechanism, a draft
member secured to the front end of said chassis
connecting rod comprises sections ill and BI se
having a brake operating device including a piston
cured in spaced relation by an interior parti
tioned sleeve 52. The sleeve is formed with' an and a cylinder connected to said braking mecha
exterior collar 53 for engagement with ?ngers 54 nism, a dependingarm pivoted to said draft mem
and adaptable for connection with a tow
formed on the lower end of a lever "i The lever ber
a sectional connecting rod connecting said
55 is pivoted, to a support 56 and hasmounted
10 thereon a pawl 51 for engagement withv teeth in
a segmentalhrack bar 58 connected toasupport
arm to said piston‘, means carried by said cylinder 10
andéconnectedhto said arm for normally urging
said piston in brake releasing position, and means
58. The support 56_ and rack bar 58 are con
nected to the draft member by means of suitable secured to said ‘draft member adjacent said de
nuts and bolts 59. The upperend of the lever I pending arm for limiting the movement of said
15 is provided with a handle 60 formed with an eye
2. ‘A trailer brake operating mechanism, com
SI for securing thereto-a.cable'_-62. A suitable
handpiece 63 is mounted on the lever subiacent ''prising,' in combination, a trailer chassis havinl
the handle 60 and connected: to the‘ pawllby- -' wheels provided-with braking mechanism, a draft
, member secured to the front end of said chassis
'. V
Operation of the connecting rods 50 and El ’ having a brake operating device including a pis
<means of a‘ rod 64.
through the medium of the depending arm will
ton 1 and , a- cylinder connected to - ' said braking
effect an‘ operation of the piston within:v the :mechanism, a depending armconnected to said
cylinderin the same manner ‘described in ‘con
nection with the: form illustratedtin'Figures' 1
to 3 inclusive. " However, pull exerted on‘ the‘ cable
62 will, through the medium of the collar 53, move
thejisleeve and‘ section, it towards the cylinder
independentof the section 50: Operation of the
device in this manner-is desirablein instances
' where. the tow» car becomes accidentally discon
‘nectedI-from' the trailer, the opposite end of.‘ the
cablebeing connected to the tow car will .upon
‘ the. accidental disconnection of the tow car func
tio'n toapply thebrakes in the foregoing manner.
I "When the trailer has'becomeidisengaged‘from
the: tow vcar, for instance during a‘ camping pe
riod or :the like, the brakes'mayibe applied by
means ofqmanual operation of they handle 60.
Release of- the brakes may be obtained byopera
~tion:of the’handpieae‘causing the disengagement
- of the pawl from theirack‘bar.
draft vmember and-adapted?i'or connection with
a tow car,,means connecting said ‘arm to‘ said
piston whereby tormoversaidji-piston inbrake, A25
yapply'ingposition upon pressure exerted on said
arm by a tow- car, and means connected to said
arm andv said cylinder whereby to position: said
, piston'in brake releasing positionduring the op- _
eration ,of a tow car ata constant-speed. .
~ »3. YA trailer brake operating mechanism, com
prising; in combination,--a'trailer chassis‘ having
wheels» providedwith braking mechanism, a draft
'memberisecured to thefront end of said‘ chassis
hand-having a‘ brake operating device, including a 35
piston and a ‘cylinder connected to said brake
>mechanism,;a depending arm' pivoted
draft member and- adapted for connection with.
a tow‘ car, a sectional .rod connected ‘to said
piston and-pivoted-rto said arm,‘ a connecting
member, securingsaid sections ‘together in spaced
‘ '
relation, and means mounted on said draft mem
"It is- to “be distinctlyyumierstood that various berfor
operating saidvconnecting member in a
arrangement of parts maybe" resorted to without manner to positionsaid pistoniinlbrake applying
changes and modi?catio
departing from the spirit of‘the invention or scope
or the appended claims.‘
y. .
-. .Having described my invention, what I claim is:
position independent of said depending arm. _~ ,
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