close

Вход

Забыли?

вход по аккаунту

?

Патент USA US2411404

код для вставки
Nov. 19, 1946.
2,41 1,404
S. B. WINN
SAFETY JAW FOR FIFTH WHEEL ASSEMBLIES
Filed April 19, 1944
4 Sheets-Sheet 1
Nov. 19, 1946.
s. B. WINN
2,41 1,404
SAFETY JAW FOR>FIFTH WHEEL ASSEMBLIES
Filed April 19, 1944
4 Sheets-Sheet 2
Nov. 19, ‘1946.
s. B. WINN
2,41 1,404
SAFETY JAW FOR FIFTH WHEEL ASSEMBLIES
Filed ‘April 19, 1944
4 Sheets-Sheet 5
Nov. 19, 1946.
s. B. WINN
7104
SAFETY JAW FOR FIFTH WHEEL ASSEMBLIES
Filed April 19, 1944
4 Sheets-Sheet 4
] He /or
“SM/Cy‘ %
746W _
Patented Nov. 19, 1946
2,411,404
UNITED STATES PATENT OFFICE‘,
2,411,404
1
SAFETY JAW FOR FIFTH WHEEL
ASSEMBLIES
Sidney B. Winn, Lapeer, Mich.
Application April 19, 1944, Serial No. 531,701
1'7 Claims. (0]. 280-331)
This invention relates to vehicles and more par
ticularly, to tractor-trailer vehicles.
The primary object of the invention is to pro
vide a new‘ and improved safety coupling device
for tractor and trailer vehicles having means con
trolled by said coupling means to prevent the sep
aration of said tractor and trailer upon failure of
2
Figure 6 is a top plan View similar to Figure 1,
showing the coupling jaw retaining bolt in its
retracted position for separation of the tractor-v
trailer combination; and
a
Figure 7 is a top plan view similar to Figures 1
and 8 showing the jaws separated for receiving
the king pin and further illustrating the manner
the coupling means.
in which the coupling jaw bolt is retracted from
Another object of the invention is to provide a
engagement with the jaws upon contact of the
coupling for tractor and trailer vehicles in which 10 king pin with a tripping member arranged in
the coupling is set upon intentional separation of
the path of movement of the king pin.
tractor and trailer so as to facilitate automatic
In the drawings, ‘wherein for the purpose of
coupling when the tractor and trailer are moved
illustrating the invention, like reference charac
into draft engagement.
ters will be employed to designate like ‘parts
Another object of the invention is to provide 15 throughout, the reference character 5 (Figures 1
a coupling for tractor and trailer combinations
and 2) will generally be employed to designate V
as above set forth in which the coupling elements
a motor vehicle chassis frame including side bars
are locked in draft engagement after being cou
6 connected by an end bar“! at the rear end
pled in such a manner as to prevent separation
thereof. Extending between the side frame bars
thereof.
‘
‘
20 6 at the rear thereof is a frame member 8 having
Another object of the invention is to provide a
a central indentation 9 thereby providing chan
tractor-trailer combination coupling as above set
nel ribs ill on opposite sides thereof. The frame
forth in which an auxiliary locking member is
member 8 is ?anged as at II to facilitate the
disposed in the path of the king pin coupling
frame member 9 being bolted or riveted to the
member when the tractor and trailer are in draft 25 side rails of the chassis frame 5 as at l2.
relationship so as to prevent accidental separa
Secured to the ribbed portions I 0 of the frame
tion‘ of the tractor and trailer upon failure of the
member 8 and adjacent each end thereof is- a
coupling jaws for any reason whatsoever such as
trunnion support I3 having ?anged portions M
by breakage or shearing of the pivot pins of the
for receiving anchoring bolts or the like as at IS.
coupling jaws which retain the same in position. 30 The trunnion support I 3 includes spaced tri
Other objects and advantages will become ap
angular shaped web portions l6 connecting the
parent during the course of the following descrip—
base portion I‘! and each of said triangular webs
tion of the accompanying drawings, wherein:
I6 is provided with a bearing boss l8 (Figure 1).
Figure 1 is a top plan view of a tractor coupling
Trunnioned between the triangular web por
member illustrating in detail the arrangement of 35 tions 16 of the trunnion supports I3 is a turn
the jaw members and the auxiliary locking device;
Figure 2 is a longitudinal cross sectional view of
the tractor coupling element shown in Figure 1
table I9 having depending bearing bosses 20 pro
vided with aligned openings 2|. The depending
bearing bosses 20 and aligned openings II are
adapted to register with openings 22 in the bear
coupling element is adapted for connection there 40 ing bosses l8 so that pivot bolts 23 may be ex
with;
‘
tended through ‘said aligned openings and sup
Figure 3 is a vertical cross sectional view
port the turntable l9. Interposed between the
taken on line 3—-3 in-Figure 2 looking in the
pivot pin 23 and the openings 2| in the depend
direction of the arrows and illustrating the po
ing bosses 20 is a bearing block 24 which may be
sition of the component coupling elements when 45 replaced when worn to compensate for wear.
arranged in draft engagement;
The turntable I9 is provided with a pair of tail
Figure 4 is a cross-sectional view taken on
portions 26 de?ning inclined ramps to facilitate
the diagonal line 4—4 in Figure 6 illustrating
the guiding of the tractor-trailer on the turn
the latch control member for the coupling jaw
table during coupling of the tractor-trailer com
members to facilitate intentional separation of 50 bination. Formed on the marginal edge of the
the tractor-trailer combination;
turntable is is a depending ?ange 21 and the
Figure 5 is a cross-sectional View taken on
underside of the turntable is braced throughout
line 5—-5 in Figure 4 looking in the direction of
by means of integrated web portions 2:8. The
the arrows and illustrating the keeper notch for
marginal ?ange 2'! and integrated web portion
‘retaining the operating lever in a set position;
55 28 extend between the ramp tails 26 and are con
and illustrating the manner in which a trailer
2,411,404
3
4
in suitable aligned openings formed in the de
pending reenforcing ribs 72. The opposite end of
the reciprocating control link is likewise af?xed
to the clevis l3 pivoted to the tail portion 14 of
an auxiliary locking jaw member '55. The auxil—
iary locking jaw member ‘15 is pivoted to the
nected by an integral portion 23 to add rigidity
to the Structure. Similarly, the marginal edges
of the ramp tail 26 are provided with marginal
depending flanges 30 and the inner walls of said
depending flanges 35 converge as at St and termi
nate in a king pin receiving slot 32 extending to
the center of the turntable E9. The slot 32 is
provided with a marginal depending ?ange 33 to
under side of the turntable W by means of a
pivot pin '35 passing therethrough and extend
ing'zi'nto‘ a depending/boss ‘ll likewise on the
add rigidity to the, structure andigenerallyreé 10 under
side of the turntable ‘is. A ‘suitable pivot
enforce the" turntable;
'
Y
‘
'
pin l3 extends through the clevis l3 and tail
Formed on the underside of the turntable l9
and disposed on opposite sides of the kingpin re- Y. . .piece 16 so that reciprocation of the rod ll will
ceiving slot 32 is a pair of depending bosses 33 r._ project the enlarged portion of the auxiliary
(Figure 3) to which is pivoted a 'pairof coupling " . member l5 into and out of the king pin slot 32.
jaws 35 by means of screws or the like as at 36. 15 ‘A coil spring lia encircles the shaft TI and has
A stirrup 3? is integrated with the ‘underside of - one end in abutting relationship with the clevis
the turntable l9 and extends beneaththe jaws
35 with angular portions thereof as at 38 engag
ing the underside of each jaw so that .the pivot
bolts 36 may pass through openings therein and 20
provide spaced bearing surfaces for the coupling
jaws. The coupling jaws 35 are provided with
‘complementary jaw surfaces 39 cut away as at 48
to conform to the shape of the king pin carried
by the trailer. The rear portion of each cou
pling jaw is notched as at M and the rear ends
of the coupling jaws are formed to provide ears 32.
A bolt anchoring ‘boss Q3'is formed on the
underside of the turntable it for receiving a bolt
44 upon, which is slidably mounted 1 a spring
Y65 and its other end in engagement with the rib
12. The coil spring insures the projection of the
jaw "i5 into the slot 32 and returns the lever 60
to its normal position.
The trailer construction embodies a chassis
frame generally designated by the reference char
acter 85 and said frame includes side rails 8i of
channel .cross section’ connected at the. front by
a transverse frame bar 82.
Aturntable engage
ing plate 85 having a relatively smooth surface
is ‘welded or otherwise secured to the front end
of the chassis frame 85 and the marginal edge
of the turntable engaging plate 83 isYupturned
30 as at .85 to present a rounded surface engageable
with‘the tailpieces 26 during'the coupling oper
projected bolt 55 (Figure 2), A washer ‘65 is in
terposed between the head of the bolt-4d andthe
ation.
A kingpin 35 has its threaded end 8'! ex
slottedportion 4" of the bolt 45. so as to maintain
the bolt in sliding relation with one end thereof
tending through a’ suitable'opening >88 in the
turntable engaging plate 83 and a nut or the like
Presented to the notches M 'inthe. coupling Jaws ,
as at 39 is threaded on the threaded portion of
35. Formed integral with the sliding bolt 535 is a
guide rod (is which-has its free end‘extending
through an opening 59 in the depending ?ange
31 to guide the spring-projected bolt in a straight
line path. A coil spring v5i) encircles the projec
tion 43 and has one end abutting the flange‘ 27
while the opposite end abuts the bolt 45 to nor
the‘kingpin ‘3'! to: anchor said kingpin in position.
The lowermost end of the kingpin is provided with
mQWment Of the kingpin by means of vibration
an enlarged head as atv 98 to prevent vertical
40 when the tractor and trailer are in draft engage
ment and the coupling jaws 39 are in their oper
ative position.
notch 4| and holdthe bolt projected.
»
' Another bolt-anchoring boss 5| is formed on
'
‘
In the operation of the tractoretrailer combi-
mally urge the same into engagement with the
nation above described; it will ?rst be assumed
a that the tractor and trailer are in draft relation
posed arms 55 and 55 and an intermediate.
ship, with the couplingjaws 39 in draft relation
ship with the kingpin 85. In this position,~ the
sprlng projected bolt 45 is received within the
notches ,M in the pivoted coupling jaws 39 so
extreme free end of the intermediate arm ex»
tension 5] is reduced and offset as at 63 to engage
grasped and the control lever 65 swung on its
pivot 52 so that the bell ‘crank arm extension 55
the under side of the turntable i9 (Figure 4) for
receiving a pivot bolt 52 to which is pivoted a bell
crank lever 53 having a pair of oppositely ,dise
portion 51. The be1l crank arm extension 55 is 50 that the curved portions 40 of the jaws will en
gage the round surface of the kingpin. 86 and
adapted to extend into a slot 58 in the bolt 135
retain the same in position. When the kingpin
at’ right angles to the slot 47 which receives the
coupling jaws 39 are in engagement, the auxil
bolt 44.. A control lever 65 is pivoted to the interiary jaw, member 15 isprojeoted into the‘ slot
mediate arm extension 51. by means of a pivot
bolt .BI' (Figure 14) and said control lever 55 is 55 .32 and into the path of the kingpin 86. Should
the jaws 3.9 fail for any reason whatsoeverpthe
provided with a bifurcated end portion 52 adapted
kingpin 86 would be locked in draft engagement
‘to-straddle the intermediate arm extension 5'! so
with the tractor by means of the auxiliary ‘lock
as to-smove upwardly in the direction of the turn
ingjaw l5.
'
v
3
table I9. The bifurcated end of the control lever
Boas at .52 is provided-Ywith' a stop stirrup 53 60 .When it is desired to uncouple the tractor and
trailer combination, the control handle ~65 is
which interconnects the bifurcated arms and the
will retract the bolt 45 against the action of the
coil spring 5!]. When the bolt 45 is thus re
tracted from engagement with the notches 4| of
the underside of the bifurcated end of the control
lever 65' to provide a slot for limited movement
'offthe control1 lever’ '65 in the opposite direction.
thecoupling jaws 35, the auxiliary jaw member
Theie'xtreme free end of the control lever ispro
vided with a hand grip 55 and said control lever
69. is. shaped in cross section as shown in Figure 5
to‘provide relatively sharp edge portions 65. One I
15 is retracted simultaneously partially from the
kingpin slot 32 with the outer edge thereof in
such a position as to be engaged by the kingpin
86 when the tractor and trailer are uncoupled
‘of the edge portions 55 is adapted to engage with
in anotch 6‘! in an acute corner there-ofas at (58.
so that said engagement will rock the auxiliary
locking jaw member .15'on its pivot 16; vOnce the
bolt ‘45 is retracted, separation of the tractor and
, The other bell crank arm extension 56 is pivoted
to a clevis ‘69 as at ‘ill affixed to one end of- the
e'ecirroeatil'e control; list 11; slidably arranges
' 715
trailer may be easily. facilitated and as the trac
2,411,404
5
tor andtrailerare separated, the jaw portions 39
of the=coupling jaws 35 will swing to the position
shown in’Figure' 7 so that as the kingpin engages
the auxiliary jaw member 15,v the arm 56 will be
given a slight movement to disengage the man
ual control lever '60‘ from engagement with the
6
means into engagement with the coupling mem
ber after separation of said coupling member and
pin and thereby position said coupling member
for reception of said coupling pin to effect re-cou—
pling of said tractor-trailer vehicle combination,
said tripping means being responsive to the entry
of said king pin‘ for temporarily disengaging said
locking means from said coupling jaw member
corner 68‘ oft-the ‘notch 61 in the depending ?ange
21 of ‘the turntable I 9. In other words, as the
kingpin 86‘ is withdrawn from the kingpin “slot
and responsive to the locking engagement of said
32 with the jaw portions 39‘ separated, the oper 10 king
pin by said coupling jaw member for being
ating lever 60 will be disengaged from its notch
temporarily locked in an extended auxiliary look
‘58 to~a1low the spring .50 to project the bolt 45
ing position in said slot.
into engagement with the sears 42 as shown in
Figure 7. Actually, the kingpin 86 simply trips
the auxiliary 1ockingjaw~75fas it passes rear
wardly through the kingpin slot 32 as indicated
in dotted lines in Figure 7 ‘so that the slight trip- '
ping movement will cause the manual operating
lever to be moved a slight distance, su?icient to
disengage the same from the notch 68.
'
When it is desired to’ again couple the tractor
and trailer combination, the tractor is backed into
the trailer so that the ramp tails 26 pass beneath
the turntable engaging plate 83. During the
backing operation, the kingpin 86 will be guided
into the kingpin slot 32 as shown in Figure 7 so
that said kingpin will engage the auxiliary lock
ing jaw member‘ 15 and depress the same during
its passage thereby.‘ Since the control lever is
spring ‘tensionedand gravity biased, the notch
68 will'not be engaged‘thereby when the locking
jaw‘ is depressed. After the kingpin 86 has thus
‘engaged and depressed the auxiliary jaw mem
ber 15,‘ ‘it will be in position between the com
plementary coupling jaw members 3-9 and con
tinued movement of the tractor relative to the
trailer will cause said kingpin to engage the tail
portions of said‘ complementary coupling jaw
members adjacent the‘notch 4! and‘thereby swing
2. In a tractor-trailer vehicle ‘combination, a ‘
coupling pin carried by one of said vehicles, a ?fth
wheel carried by the other of said vehicles hav
ing‘ a slot to receive said coupling pin, a pair of
cooperable coupling members on the ?fth wheel
for engaging said coupling pin, means engage
able with said cooperable coupling members for
locking said members in draft relationship with
said coupling pin, manually operable means for‘
disengaging said locking means to hold the same
in a retracted position, and means extending into
said slot for tripping said disengagingmeans to
again project said locking means into engage
ment with the cooperable coupling members after
separation of said cooperating coupling members
and pin and thereby position said cooperating
coupling members for reoeptionof said coupling
pinto effect re-coupling of said tractor-trailer
vehicle‘ combination, said‘ means extending into
the coupling pin slot and providing an auxiliary
locking member in the path of the coupling pin
when the tractor and trailer are in coupled rela
tion to prevent accidental separation of ‘the trac
tor and trailer upon failure ‘of the cooperating
coupling members and coupling pin.
_
‘
3. In a tractor-trailer vehicle combination, a
coupling pin carried by one of said vehicles, a
the jaws 35 on their pivots about said kingpin 86. 40 ?fth
wheel carried by the other of said Vehicles
When the jaws and kingpin have been engaged,
having a slot to receive said coupling pin, a pair
the bolt 45 will'be spring projected between the
of cooperable coupling members on the ?fth wheel
notched portions 4! of the complementary cou
for engaging said coupling pin, locking means
pling jaw members 35. In the last-mentioned
engageable with said cooperable coupling mem
position, the tractor and trailer are again in draft
bers for locking said members in draft relation
relationship with the coupling jaws engaging the
ship with said coupling pin, means for disen
kingpin and the‘ auxiliary jaw member 15 pro
gaging said locking means to hold the same in
jecting into the kingpin slot 32 and into the path
a retracted position, and means extending into
of the kingpin as indicated in dotted lines in'Fig
said slot engageable by said king pin duringits
ure 6. Should‘ the coupling jaws 35 fail for any .
exit movement therethrough for tripping said
reason whatsoever, the same will engage the aux
iliary jaw member 15 and retain the tractor and
trailer assembly in draft relationship.
It is to be understood that the form of the
' invention herewith shown and described is to be
taken as a preferred embodiment of the same and.
that various changes may be made in the shape,
size and‘arrangement of parts without depart
ing from the spirit of the invention or the scope
of the subjoined claims.‘
What I claim is:
disengaging means to again project said locking
means into engagement with the cooperable cou~
pling members to hold the same separated after
separation of said cooperating coupling members
and pin and thereby position said cooperating
coupling members for reception of said coupling
pin to effect re-coupling of said tractor-trailer ve
hicle combination, said disengaging means con
sisting of a manually operable control member
adapted to be moved to a predetermined latched
‘
position, said tripping means being responsive to
1. In a tractor-trailer vehicle combination, a
the entry of said king pin for temporarily dis
coupling pin carried by one of said vehicles, a
engaging said locking means from said coupling
?fth wheel carried by the other of‘ said vehicles
members and responsive to the locking engage
' having a slot to receive said coupling pin, a cou 65 ment of said king pin by said coupling members
pling jaw member on the ?fth wheel for engag
for being temporarily locked in an extended aux
ing said coupling pin, means engageable with
iliary locking position in said slot.
said coupling jaw member for locking said mem
4. In a tractor-trailer vehicle combination, a
ber in draft relationship with said coupling pin,
coupling pin carried by one of said vehicles, a
manually operable latch means for disengaging 70 ?fth wheel carried by the other of said vehicles
said locking means and to hold the same in'a re
having a slot to receive said coupling pin, a pair
tracted position, and means extending into said
of cooperable coupling members on the ?fth wheel
‘slot engageable by said king pin when said king
for engaging said coupling pin, means engageable
'pin‘is passing out of 'saidslot for tripping said
with said cooperable coupling members for lock
disengaging means to‘ again project said locking 75 ing
said members in draft relationship with said
2,411,404
7
coupling pin, means ‘for disengaging said locking
means to hold the same in a retracted position,
and means extending into said slot for tripping
said disengaging means to again project said look
ing means ‘into engagement with the cooperable
coupling members after separation of‘ said co
operating coupling members and pin and there
by position said cooperating coupling members
for reception of said coupling pin to effect re
8
ing‘ a ‘slot'to receivesaidiking pin,.a pair 'ofzpiv-i .
oted jaw members ‘on wthe ?fth "Wheel .for‘len
gaging said king ‘pin, a spring-projected- bolt ‘en
gagleable withsaid pivoted jaw members forlocke
ing said members in draft relationshipwith said
king pin, manually controlled latch means for
disengaging said spring projected?bolt ‘to ‘hold
the same in a retracted position, and meanseX-i
tending into said slot- engageable with said king
pin during its exitmovement therethrou'gh‘ for
coupling of said tractor-trailer vehicle combina 10 trippingsaid ‘disengaging means to agairrpz‘o
tion, said means extending into said slot consist
ject said spring-projected bolt into engagement
ing of a pivoted jaw member spaced from the
with the pivoted jaw members after separation
cooperating coupling members, said tripping
of said pivoted jaw members and pin and there-5
means being responsive to the entry of said king
by position said pivoted jaw members for re
pin for temporarily disengaging said locking
ception of-said king pin to e?ect coupling ofv'said
means from said coupling members and respon
- tractor-trailer vehicle combination, said tripping
sive to the locking engagement of said king pin
means being engageable by the king pin upon
by said coupling members for being temporarily
re-entrance thereof into said slot for moving the
locked in an extended auxiliary locking position
20 spring-projected bolt ‘a sufficient distance'to, per
in said slot.
mit closing of said jaw members about the king
5. In a tractor-trailer vehicle combination, a
pin and movement of said bolt to a fully locked
king pin carried by one of said vehicles, a ?fth
position.
v
,
wheel carried by the other of said vehicles hav
8. In a tractor-trailer vehicle combination, a
ing a slot to receive said king pin, a pair of piv
king pin carried by one of said vehicles, a ?fth
oted jaw members on the ?fth wheel for engag 25 wheel carried by the other of said vehicles hav
ing said kingpin, means engageable with said piv
ing a slot to receive said king pin, a pair of piv
oted jaw members for locking said members in
oted jaw members on the ?fth‘wheel for engage
draft relationship with said king pin, means for
ing said king pin, means engageable with said
disengaging said locking means to hold the same
pivoted jaw members for locking said members "
in a retracted position, and means extending into 30 in draft relationship with said king pin, aman
said slot engageable by said king pin during its
ually controlled operating lever for disengaging‘
exit from said slot for tripping said disengaging
said locking means, latch means to- hold- the
means to again project said locking means into
lever and locking means in a- retracted position,
engagement with the pivoted jaw members to
and means extending into said slot engageable
thereby hold the same in an open position after 35 by the king pin during its'movement out of said
separation of said pivoted jaw members and pin,
slot for tripping said latch means and manually
and thereby position said pivoted jaw members
controlled operating lever to again project said
for reception of said king pin to effect re-coupling
locking means into engagement with the pivoted
of said tractor-trailer vehicle combination, said
jaw members after separation vof'said pivoted jaw
tripping means being responsive to the entry of 40 members and pin and thereby position said piv-'
said king pin for temporarily disengaging said
oted jaw members for reception of said king pin
locking means from said jaw members and re
sponsive to the locking engagement of said king
pin by said jaw members for being temporarily
‘locked in an extended auxiliary locking position
to effect recoupling of said‘ tractor-trailer ve
hicle combination, said tripping means being en
gageable by the king pin upon re-trance into said
slot for temporarily moving said locking means
in said slot.
6. In a tractor-trailer vehicle combination; a
king pin carried by one of said vehicles, a ?fth
to a position wherein the jaw members are free .
wheel carried by the other of said vehicles hav
ing a slot to receive said king pin, a pair of ‘piv
oted jaw members on the ?fth wheel for engag
ing said king pin, means engageable with ‘said
pivoted jaw members for locking said members
in draft relationship with said king pin, means
for disengaging said locking means to hold the
engagement withvsaid jaw members. '
same in a retracted position, and means extend~
to'move into engagement with the king pin before
the locking means is ?nally projected into lock-ing
_9; In a tractoretrailer vehicle combination, a
king pin carried by one of said vehicles, -a ?fth
wheel carried by the other of said vehicles hav
ing a slot to receive said king pin, a pair of piv
oted jaw members on the ?fth wheel for engag
ing said king pin, means engageable with said
pivoted jaw members for locking said ‘members
ing into said slot engageable by said king pin
in draft relationship with said king pin, means
during its exit therethrough for tripping said dis~
for disengaging said ‘locking means to hold the
engaging means to again project said locking
same in a retracted position, and an'aux‘iliary
60
means into engagement with the pivoted jaw
lock jaw member extending ‘into said, slot for
members after separation of said pivoted jaw
tripping said disengaging means to again project
members and pin and thereby position said piv
said‘locking means into engagement with the piv
oted jaw members for reception of said king pin
oted jaw members after separation of said piv
to effect recoupling of said tractor-trailer vehi
oted jaw members and pin and thereby position.
cle combination, said ‘pivoted jaw members being 65 said pivoted jaw members ‘for reception of said
provided with complementary notched portions
king pin to effect coupling of said tractor-trailer
for the reception of said means engageable with
vehicle combination. ,
.
said jaw members and said (tripping means being
10. In a tractor-trailer vehicle combinationa
engageable by said king pin upon re-entrance
king pin carried by one ‘of said vehicles, a ?fth
into said slot for temporarily moving the locking 70
wheel carried by the other of said vehicles hav
‘means out of, engagement with said jawsilntil
ing a slot to receive said kingpin, a pair of piv
the king pin has been moved therebetween.
oted jaw members on the fifth wheel forv engag
'7. In a tractor~trailer vehicle combination, a
ing said king pin, a spring ‘projected bolt for en
king pin carried by oneof said vehicles, a ?fth
gaging said jaw vmembers to retain said‘ members
.wheel carried by the other of said vehicles hav
9
2,411,404
10
in a locked position, manually operable means for
vdisengaging said spring‘ projected bolt,‘ latch
means to hold the bolt in a retracted position,
lever pivoted to the turntable for retracting said
bolt, latch. means engageable with said lever to
hold the same in a predetermined position, an
and means ‘extending into said slot engageable
with the king pin on removal thereof from said
slot for tripping said disengaging means to again
project said spring-projected bolt into engage
auxiliary locking jaw member extending into said
king pin slot for preventing removal of ‘the king
pin, a link connecting said manually controlled
operating lever and auxiliary locking jaw to re
lease ‘said lever from its manually set position
ment with the ‘pivoted jaw members after sep
aration of said pivoted jaw members and pin
and thereby position said pivoted jaw members 10 and project said bolt into engagement with said
jaws to hold'the same in an open position when
for reception of said king pin to effect recoupling
the coupling jaws and king pin have been‘inten
of said-tractor-trailer vehicle combination, said
tionally separated, and spring means for urging
spring-projected bolt being adapted to be re
said locking bolt into said complementary notched
ceived in complementary notched portions of said
pivoted jaw members to hold said jaw members 15 portions of said jaws whereby intentional-sep
aration ofthe coupling jaws and king pin may
in draft engagement with said king pin and said
effect a resetting of said bolt to permit the re
tripping means being engageable upon re-en
coupling of said jaws with'the king pin and the
trance into said slot for temporarily'moving the
bolt out of engagement with said jaw members
until the king pin has been moved to a position
therebetween whereby said bolt may be projected 20
into said notched portion of said member and re
establish said vehicle combination in draft rela
tionship.
automatic locking of said jaws in draft engage
mentjsaid auxiliary‘ locking jaw being arranged
for being engaged by the king pin during its re
entrance into said slot to temporarily move the
locking bolt out of'engagement with said jaw
members to facilitate free movement of the cou
11. A ?fth wheel construction for tractor-trailer 25 pling jaws into engagement with the king pin and
the positioning of said notched portion for re
vehicles, comprising a turntable mounted on one
ception of said locking bolt.
of said vehicles having a slot for receiving a king
14. A ?fth wheel construction for tractor
pin carried by the other vehicle, a coupling mem
trailer vehicles, comprising a turntable mounted
ber on said turntable to project into said slot
on one of said vehicles having a slot for receiv
and engage said king pin, a spring-projected look
ing a king pin carried by the other vehicle, a
ing bolt engageable with said coupling member to
pair of coupling jaws pivoted to said turntable to
lock the same in a closed position, a manually
project
into said slot and engage said king pin,
controlled actuator on the turntable for retracting
a locking bolt engageable with complementary
said bolt, an auxiliary locking jaw member ex
tending into said king pin slot for preventing ac 35 notched portions of said jaws to lock said jaws
cidental removal of the king pin, and a link con
in a closed position, a manually controlled lever
on one of said vehicles, having a slot for receiv
ing intentional uncoupling thereof will release
pivoted to the turntable for retracting said bolt,
necting said auxiliary jaw member to said lever
an auxiliary locking jaw member extending into
whereby said auxiliary jaw member will be en
said king pin slot for preventing accidental re
gaged by the pin during its exit and entrance
with respect to said slot for controlling the look 40 moval of the king pin, and a link operatively
ing bolt.
connecting said manually controlled lever and
auxiliary locking jaw, whereby engagement of
12. A ?fth wheel construction for tractor
said auxiliary locking jaw by the king pin dur
trailer vehicles, comprising a turntable mounted
ing a, king pin carried by the other vehicle, a 45 said bolt for re-engagement with the notched
portions of the coupling jaws when the tractor
pair of coupling jaws pivoted to said turntable
and trailer are again assembled in coupled. rela
to project into said slot and engage said king
tion.
pin, a locking bolt engageable with complemen-t
15. A ?fth wheel construction for tractor
tary notched portions of said jaws to lock said
trailer vehicles, comprising a turntable mounted
jaws in a closed position, a manually controlled
on one of said vehicles having a slot for receiv
lever pivoted to the turntable for retracting said
ing a king pin carried by the other vehicle, a pair
bolt, an auxiliary locking jaw member extend
of coupling jaws pivoted to said turntable to
ing into said king pin slot engageable by the king
project into said slot and engage said king pin, a
pin during intentional separation of said tractor
trailer vehicle for controlling said locking bolt 55 locking bolt engageable with complementary
notched portions of said jaws to lock said jaws
and engageable with said king pin during unin
in
a closed position, a manually controlled lever
tentional separation of said tractor-trailer for pre
pivoted to the turntable for retracting said bolt,
venting removal of the king pin, and a link con
an auxiliary locking jaw member extending into
necting said manually controlled operating lever
said
king pin slot for preventing accidental re
to said auxiliary locking jaw member to release 60
said lever from its manually set position and pro
ject said bolt when‘the coupling jaws and king
pin have been intentionally separated to there
by hold said coupling jaw members separated un
til recoupling of said jaw members and king pin. 65
13. A ?fth wheel construction for tractor-trailer
vehicles, comprising a turntable mounted on one
of said vehicles having a slot for receiving a
king pin carried by the other vehicle, a pair of
coupling jaws pivoted to said turntable to project
into said slot and engage said king pin, a look
ing bolt engageable with complementary notched
portions of said jaws to lock said jaws in a closed
position when said king pin and coupling jaws
moval of the king pin, and a link operatively con
necting said manually controlled lever and aux
iliary locking jaw, whereby engagement of said
auxiliary lockingjaw by the king pin during in
tentional uncoupling thereof will release said bolt
for re-engagement with the notched portions of
the coupling jaws when the tractor and trailer
are again assembled in coupled relation, said
link being resiliently urged in one direction to re
turn' the operating lever to a locking position
wherein the bolt will be projected.
,
16. A ?fth wheel construction for tractor
trailer vehicles, comprising a turntable mounted
on one of said vehicles having a slot for receiv—
are in draft relationship, a manually controlled, 75 ing a king pin carried by the other vehicle, a pair
of coupling jaws pivoted to said turntable to pro
2,411,404
11
'ject into said slot and engage said king pin, a
locking bolt engageable with complementary
notched portions of said jaws to lock said jaws
in a closed position, a manually controlled lever
pivoted to the turntable for retracting said bolt,
an auxiliary locking jaw member extending into
12
of‘ coupling jaws pivoted to said turntable to
project into said slot and engage said king pin,
a locking bolt engageable with complementary
notched portions of said jaws to lock said jaws
in a closed position, a manually controlled lever
pivoted to the turntable for retracting said bolt, }
an auxiliary locking jaw vmember extending into
said king pin slot for preventing accidental re
said king pin slot for preventing accidental re-V
moval of the king pin, and a link operatively
moval of the king pin, and a link operatively con
connecting said operating lever with said auxil
necting said operating lever with said auxiliary
iary jaw, said turntable being provided with a
jaw, said turntable being providedwith a keeper
keeper notch for holding the manually controlled
notch for holding the manually control-led lever
lever in a set position whereby engagement of
in a set position whereby engagement ‘of the aux
the auxiliary jaw‘ member by the king pin dur
iliary jaw member by the king pin will release
ing intentional separation of the coupling jaws
the operating lever ‘from said notch and project’
15
and king pin will release the operating lever from
said bolt into engagement with the coupling jaws‘,
said notch and project said bolt into engagement
said coupling jaws being held in their separated
with the coupling jaws.
'
position until the king pin is again brought into
17. A ?fth wheel construction for tractor
coupling engagement therewith.
trailer vehicles, comprising a turntable mounted
on one of said vehicles having a slot for receiv 20
SIDNEY B. WINN.
ing a king pin carried by theother vehicle, a pair
Документ
Категория
Без категории
Просмотров
0
Размер файла
1 225 Кб
Теги
1/--страниц
Пожаловаться на содержимое документа