close

Вход

Забыли?

вход по аккаунту

?

Патент USA US2133074

код для вставки
oct. 11, ‘1938.’
-
'
1_. A. BIXBY'
BRAKE CONSTRUCTION
v
“2,133,074
Oct. 1l,_1938.7
lA.. A. ‘Blxl-BY"
~ ' 24,133,074
BRAKE CONSTRUCTION
Filed N_ov. 3.o,v 19:56-
fà' .6.
J
, - 2
’ 4 sheets-sheet 2
f
/
Oc1.11,193s.
‘
A
'
LA. Bíxày
-
BRAKE coNsTRUQTIoN
'
‘
FiÍedNov. 30; 1936
2,133,074
`4 Sheets-Sheet 3
@a
v
I
Oct. 1l, 1938.
"
’
`
|__ A, B|XBY I
2,133,074
BRAKE CONSTRUCTION
-'
-Filed Nov. so, 195e '-
4 sheets-sheet 4
77
74!
/02
¿l0
'
.-/00
33
'
,
..
L
n
/700
'
--97
/Ö
Patented Óct. 1`1`, 1938
2,133,014
STAT
¿133.6% '
I'
' A miamiy CoNs'incarica''f>
i
Le@Clark`
A. Bixby,
Equipment
„Kalamazoajivnqhi
’Company,. Buchanan,
'gssignorfió"
Mich.,
a corporation of Michigan
'
'
'
'
.
'
. ï Application; November' 30,1936, sei-.iai No.. 113,318
» The present» invention relates generally to < Figure i5 isla view similar to Figure 2 and
brakes for- automotive vehicles and the like, and V shows the anchoring means for the brake apply
' is particularly concerned with brakes of the‘ex * ing-mechanism on-the same side ofthe Vtransmis
ternal contracting type arranged Von the pro
sionas _inlFigureZ` but in a reversed position so
ï5 peller shaft at the rear-0f the transmission(-
as f-to permit the connection ofthe brake operat
` One of the principal objects ofthe present in
ing-mechanismA ina Vlower position;
»
l
vention is the provision of a brake mechanism of
‘Figure 6 Yis a-view illustrating -the disposition l
thisY general type which is 'particularly adapted . of the'brake applying> mechanism and associated
5
to-be mounted in optionalv positionsso as'to ac
parts at the -left side vof the transmission;
commodate various kinds of brake’ operating ^ :Figureï'l isa corresponding view showing the` 10
arrangements. AHeretoforebrake means of this anchoring means for the brake'band kmounted
character usually have embodied a brake Vdrum V at the right Aside of the transmission; and
secured to the'V driven shaft of the transmission
` Figure 8 is a view similar to Figure 6 but illus
Iand a `brake band of the external type anchored
trating` the reversed position of the ‘brake apply
ing‘meansïas compared with its position as shown 15
15 against'rotation and contracted about-the brake
. drum by suitable mechanism disposed at one side
in‘Figure
of the transmission, atY the rear of which the v »
6.
'
-
Y
'
-
VReferring `now-to the drawings, particularly i
brake is disposed. It is `sometimes- desirable >to Figures 1, 2 and Zi,Y reference numeral' I indicates
have the brake applying mechanism arranged at Y an automotive `Yselective 5 gear transmission of
2Q one side of the transmission, and at other times ` more or less conventional construction, embody
itis desirable to have the brake applyinglmech
ing a housing 2 and: suitable gearing therein (not
anism at the other side `*of thel transmission, in shown), which servesfto transmit the drive to a
order to accommodate different kinds of oper
driven» shaft- 3-. ¿ The rear end of the shaft rv3
ating mechanisms for thebrake applying means, is splined, asïfindicatedat 4 (Figure2) and re
and particularly are these different types of oper
ceives a `collar 5 which serves as a support for
ating mechanisms encountered ’ Vin providing aflanged brake drum 6. Preferably, though not
transmissions for Ytrucks of the cab-oVer-engine necessarilyfthe universal joint by which the
type. The principal feature of the present in
power is transmitted tothe propeller shaft of a
vention is, therefore, the provisionV of ¿a brake 'vehicle is »also connectedrwith the collar 5, the
construction which provides for the disposition ,central portion of the brake drum 6 being bolted
of the’brake applying means in a yplurality of to the flange fof the collar 5, and the latter being
optional positions.`
'
, “_
v,
_
f »
heldy onto the rear end of the driven shaft 3 by
'. These and other objects and advantages of the
a threadednut 1 or `other suitable means. '
30
‘
present invention will vbe apparent to -those skilled
ÍThe brake drum 6 is surrounded by a' brake
inïtheart after a consideration of the following
band I0 of the externalicontracting type which includes a band. member II and friction brake
detailed description, taken in conjunction with
the accompanying drawingsillustrating the' pre
.ferred
construction.
o
In the drawings:
,l
K
'
Y
¿
'
'f
`
_’
~
i
'gure l is a view looking forwardly «toward
the rear end of a transmission unitprovided'with
a brake construction embodying the principles
of`Figure
the present
2 `is an
invention'f'
elevation,
" looking
.
' ' ’ toward
' `
the
45 right side of the construction shown in Figure ‘1,
withY the brake - applying '- means mounted ` at `this
lining> I2. ÉThe‘lntermediate portion of the brake
band I0 carries `a U-'shaped- member I5 riveted '
or otherwise"securedftheretol inV any suitable
manner, ¿andïY the leftv side of the'trans'mission
'(Fi'gure’ 45)*` is provided with an apertured boss '
sectionfI-Iì in Ywhichthree Vbolts I1,«~I8Vand I9 are
` disposed andi-adapted» to clamp to the left side
of the .transmission an anchoring ¿bar 2|, which
has an end?- 2__2 that extends 'rearwardly in be 45
, tweenïthefintermediate portions ofthe U-shaped
side of the transmission, with the brake operating“,v anchoringY lug I5. 1 The end 22 of the ‘anchoring ‘
means in> an upper position; ’
«
bar 2|V ls apertured', as at 23, and receivesv a
Figure Sis a View of the anchor for the brake
operating means, looking downwardlyçgenerallyl
along the line 43---3 of Figure 2;
o ~i
>Y
.Y
Y_
I
threaded adjusting
> screw ` 24 which ' extends: ra
`
`dially
*outwardlyA through
an _opening
inthe
an 50
‘
Y
o
i
Y choring lug I5-and has a kerfj25to accommodatev
`as_tool vfor adjusting the position ofthe screw 24.
towardthe left side of the ’transmissiomiwitn ,the> - A springV 2,1 is'fdisposed between the outer portion
Figure 4_ is a view, `reduced in scaleylooking
brake band ranchoring :means gmounted atfthisV offthe :anchoring lug? I5 and has; an inner end
seated injafrecess l28 mountedin the endr22 >of
55; side "of `the transmission; ‘ g
55
2,
2,133,074
Y the anchoring bar 2|.
The spring 21 reacts
arrangement shown in Figure 2, the lower end of
against the end 22 of the anchoring bar 2| and a J-bolt 12 is disposed. A spring 13 of relatively
biases the brake band |0` for movement away large size is disposed against the lug section 63
Y and is held between the outer surface of the latter
¿from the brake drum 6.
The right side ofthe transmission |, referring and an adjusting nut 14. A washer 15 is prefer
ably 'disposed between the ladjusting nut ~14 and
1 now to Figure 2„ is »provided with bosses 38
similar to those accommodating the bolts> l1, I8 the lower end of the spring 13. The/end of the
and I9 on the left sideY of the transmission, and ` 'Y J`-bolt 12 is threaded to receive the adjusting nut
is provided withy threaded Aapertures to receive 14, and a lock nut 11 and a lock washer 18 are
10
bolts 33, 34 and 35, by which a second anchoring
also carried by the J-bolt12. As best shown in
member 38 is fastened to the' right side of the
transmission. The anchoring member 38 is >in
Figure 2, the diameter of the opening 1| is some
what larger than the rdiameter of the bolt 12,
the nature of a reversible casting having a lrear- Y, and this construction, taken together with the
relatively large spring 13, provides a rocking con
nection between the lugl section 63 and the J-bolt
12, accommodating any angular movement be
thickened boss sections 42, 43 and 44 which are tween the brake band lug and the bolt 12 when
apertured to provide bolt receiving Openings f the brake is applied. A spring> 19, lighter than
spaced to register with the bolt receiving open»
the spring 13, is disposed betwen the upperrsur
face of the lug section 63 and the lower surface
20 ings at either side of the transmission, and the
boss sections 42, 43 and 44 are machined on both of the anchoring arm 39. The spring 19 serves
Vwardly extending arm 39 and an upwardly dis
t. . Cil‘
posed arm 48 shorterthan-the arm 39. The main
portion of the anchoring member 38 includes
sides to provide the mounting of the anchoring
`member 38 at either sideof the transmission
K , withthe shorter arm 40 in either an upper posi
y25
tion (Figures 2 and 6)V or in a lower position
(Figures 5 and 8). The ,endoffthe shorter arm
'3,8 is also provided with av bosssection `45 which
is apertured, Vasat 46,Y and is also machined on Y
both sides. `The outer end of the arm 39 is pro
30 vided with 'three apertures; an aperture 48 dis
posed in the' central plane of the member 38 and
in a boss 49 formed at the outerY end of the arm
39; a smaller opening` 58 disposed to one side
of the central plane of the member'48 and out
35 wardly beyond the larger opening 48; and a sec
ond smaller opening 5| disposed an equalamount
on the other side of the central plane of the
memberp38 and inwardly the same distance'from
the larger opening 48 that thev opening 58 is
disposed outwardly.
f
Y
e
The brake applying mechanism, which is asso
ciated with'and connected to the anchoring mem
ber >38, will now be described. As best shown in
Figure l, one end of the brake band I8 carries
45 a lug 68 and the other end carries a similar lug
8 I. Preferably, for reasons which will be referred
_ ,
The lug 6| at the other end of the brake band
I8 vis identical, for all practical purposes, with 25
the lug 68Yand similarly includes a lug section
83 with pairs of 'webs84 and 85 on opposite sides
thereof, the webs 85 reinforcingthe lug andserv
ing to distribute the brake-applying stresses and
prevent excessive Wear which sometimes occurs 30
at»V the heel of ordinary lugs. 'I'he lug section 83
of the Vlug 6|, like the lug 68, is'V also .provided
with openings 81 and 88 at the opposite corners
Vof thelug, but when the partsare arranged as
illustrated in Figure 2, the adjusting bolt 61 is
not disposed in either of these openings.
« The upper surface of the lug‘l section 83 in- Fig
ure 2 is flat, like the lower surface of the lug sec
tion 63, and receives a head 98 which has a
curved lug-engaging surface 9| (Figure l) and 40
is apertured to receive the upper end of the J'-bolt
12. The lug section 83 -is also apertured to re
ceive the J-bolt. Thev hook end 94 _ofthe J-bolt
receives a pivot pin 95 vand is disposed between a
pair of cam plates 96 and 91. _The cam plates 45
are generally triangular in shape and each is pro
. to later, the lugs 68 and 6| are identical. vEach
vided with a cam surface or edge engaging the
lug is` fastened in any suitable way, as by rivets,
head 98 on opposite sides of the J-bolt Y12. The
cam plates are apertured to receive a pivotY Din
|88, and a yoke |8| is disposed between the cam
plates and pivoted to the pin Y |88, and an operat
ing rod |02 is threaded into or’otherwise fastened
' Y . to the ends of the metal strap || forming a part
50
to move the brake band out of contact with the
brake drum 6 when thebrake is released.
of the brake band |8. The lug Y6|) includes a pair
of lreinforcing webs 62 on one side of an aper
turedsection 63, and a similar pair of reinforcing
webs 84 isprovided on the other side 4.of the ex- ' to the yoke |8| so thatra pull on the .rod |82, in
tended section 63. By virtue of ythe reinforcing
55 sections 64, excessive Wear at the heel of the lug
. is prevented. The radially outermost end of the
the arrangement shown in Figure 2,Y swings the
cam plates 96 and 91 about the pivot 95 and eX
erts a thrust againstrthe lugv section 83 through
the head 90 and reacts through the' bolt 12 against
extended section 63 is provided with openings 65
Vand 66 in the cornersv thereof (Figure 3) and in the> other lug section 63. ' The pivot 95-also re
1 the arrangement shown in_FigureV 2, theopening ceives the rear ends of a pair of anchoring links
|85 and |86 and the links, at their forward ends, 60
60 65 receives the headed end_of an adjustingV bolt
61 that acts to cooperate with the Ybar 2| in sup-‘ are pivoted by a pin |81 to the upper and rear Y'
porting the brakeband and >extends upwardly
end ofthe anchoring arm 48. /By virtue of this Y
arrangement, the b_rake .applying `pull on the rod
ing :throughfthejopening «58 in the anchoring |82 does not tend to forcethe ends ofthe brake
band laterally, since the J-bolt is held in proper
65 arm 39, andis provided with a pair of nuts 69
Ywhich may be adjusted to hold the endof the position Ybyits disposition in the opening 48 of
brake band I8 carrying the lug 68 in the proper `the anchoring` arm 39 and by the anchoring links
position relative to the brake drum 6.V . The bolt' |85 and |86 connected tothe anchoring arm 48.
`from the lug 68 and has a threadedgend 68 pass-`
k81iñtsrwith'sufficient looseness in the opening A> spring H8, similar to the springV 19, encircles
70 F58 'of the-anchoring arm 39,> and also inthe
openingr65 of the lug 63, so that the end of the
` brake'band may be drawn upwardly'freely when
n the brake is contracted about the brake drum 6.
The ,lug section 63 is also'providedwìth a rela
tively large central opening~1|1fin which, inthe
the Y(upper end of the J-bolt 12V and isl disposed 70
between the upper surface of theanrclioring arm
39 and the lowerV surface of the lug Ysection- 83.
' 'I'he operation of the structure so- Vfar described
is substantially as follows:
r
j
' »
Thesprings 19 and II 8r act >against the~anchor- 75
2,133,014
ing arm 39` to keep» the ends of the brake band
'3
posed >in the opening '66 and with its threaded'
end disposed in the opening 5| of the anchoring
arm 39, the opening 5| now~being on the outer
out of contact with the brake >druml 6,` but when- a
pull is exerted on the-rod |02., ’the cam‘plates 96
and 91 are swung about their pivotal' connection
with the J-bolt and the linksv |05 «and |06 »and
sideV and the opening 50 on‘the inner side.
however, the'brake band ll!) is mounted in a re
pressed downwardly against ther head v9|), which versedï position 'relative to* that shown in Figure
receives, and is- movable axially along, the bolt 1, then» the» adjusting'boltA 61' would be disposed
'l2'. The curved surface 9| permits theangular
movement between the lug 6|"(Figure 1) and the'` in the ~oizieningß’ß-¿in lthe=lug section 83, but the
threaded endwould'be disposed in the outer
opening 5| in 'the'anchoring arm 39.
In both ofthe arrangements described above,
the'` brake applying and Yoperating Amechanism
has beendisposed at the right side of the trans
head 90 which occurs when the' brake is applied',
but the head 90, at the same time, serves to keep
the lug from cocking out of the properlpositions.
The reaction of the swinging of thecam plates 96
and 91 acts directly through the J-bolt 12 to- exert
an upward .pull on the lower lug 60, thero‘cking mission |. If desired, according to the present
connection between the lower end of the bolt ’12: invention, Íthe >brake operating and .applying
and the lug, by virtue of the relativelyfheavy mechanism` may be disposed-at the left side of
spring 13, accommodating an angularmove?nent - `the transmission; and in order to effect this dis
of the lug GIL-relative to the bolt 12, correspond- `
20
ing to the similar angular movement of thel lug
6| relative to the- bolt -‘|2. Due to the length
of lthe links 4|65 and |06 and the disposition `of
the bolt l2 within the opening 48 Within the an
choring arm 39, the movement of -the 1ugs~60
and 6| is, Vfor all practical purposes, a straight
position thebrakeband'anchoring bar 2| is
mounted on'the right-.hand side'of the transmis-_
sion, being secured 4in place by the bolts‘ 33, 34 26
and 35'that, in Figure '2, held the anchoring
member 38, in ñxed position. `The anchoring
member 38 is fastened to` the left side of the
transmission | by the bolts I1, | 8 and |9 that,
in Figure 4, held the brake band anchoring bar 25
line circumferential movement whichV brings -the in
position. `In order to accommodate this ar
ends of the brake band I 0 Vcloser together and>
rangement,
the threaded holesin the transmis
contracts the brake about the brake drum 6. In
sion walls are'preferably disposed in transverse
this contracting movement-of the brake`band„the alignment
kso that the holes in the anchoring
30 latter is anchored against> rotation with K«the
»bar 2| and the anchoring member 38 have the
brake drum 6 by virtue 'of’itsfconnection with same spacing so as toprovide for interchange
the anchoring bar 2|. rHowever, theV requiredy ability. Actually,‘of course, the bolts l1, I8 and
movement of -th‘ebrake bandas awhole toward |9‘may> be employed for holding `the anchoring
the drum is accommodated by the-anchoring'lug
Vsliding toward the brake drum 81 on the end 22 of
the anchoring bar 2| and against the tension
of the spring 21. By virtue of the adjusting
» screw 24 and the adjusting‘bolt 61, the brake
bar 38 inipositionon the left side of the trans
mission, j while the bolts 33, 34 and 35 may be
employed` for holding the brake band anchoring
bar in position on’the right side of the trans
mission
housing.
`
`
v
band may be brought to an accurately concentric
40 position with respect to the ' brake drum'> but
spaced therefrom, as shown inFigure 1, therre
quired amount to permit the free rotationr of the
" When the anchoring member _38 is mounted
brake drum 6relative tothe brake band |0,when
spectively in Figures 6 and'v 8. When the arm 40
the brake is released.
45
~
,
'
'
'
Reference has been made above to Ythe ability
on the left side of the transmission, it can be
disposedV either with the arm- 40 in an upper
position or in a lower position, as shown re
is in an upper position, the operating rod |02
extends forwardly in substantially the same po
of the brake construction, embodying the prin- ’ . sition as is indicated in Figure 2, but at the left
c'iples of the present invention, to meet there
quirements of various operating arrangements.
Y In the construction shown in Figures 1, 2 and13,
50
the brake operating rod |02,- which is connected
vto a hand brake | |0, (Figure 1), is disposed in an
upper position at the right side of the transmis
sion |, accommodating amounting of the brake
’lever ||0 in the position’ shown. For some in
.of the transmission, and when the arm 40 is dis
posed in a lower position, the operating rod |02
isV disposed in a positionrcorresponding rto the
position vshown in Figure 5, but on the left side
of the transmission. If desired, of course, the
operating rod |02 inf any of the positions referred
to above, may extend 'rearwardly and be operated
stallations it may be desired, yfor example, to by a push instead of a. pull.
have the brake-applying rod |02 in a lower posi
' While I> have shownfand described above the
tion rather than in an upper position, but at .the preferred structures in Vwhich the principles> of
right side of the transmission. In order to ac'
the present invention have been illustrated, it is
commodate this arrangement, the anchoring
GO member 38 is mounted in a position reversed from
that shown in Figure 2, so that the shorter arm
40 is disposed in thelower position. This is the
position shown in Figurev 5, and to accommodate
a lower position of the operating rod 102', the
to be understood that, infact, Widely different f
meanslmay be employed in the practice - of
broader aspects of my invention.
they
What I-` claim, therefore, and desire to secure
`by Letters Patent is:
>
.
l. In a brake V_construction for’the rear endof
65 J-bolt 12 and associated'> parts are also mounted ' a transmission; Aa brake band, brake applying
in a reversed position relative >to the position. means associated with said brake band, brake
shown in Figure 2. It is not,.however, necessary anchoring means for said band. and meansfor
to reverse the `position of thebrake band |0-,. optionally> supporting said brake applying means
although this may be'done if desired. However, . or said brake anchoring means on either
side of
as shown vrin Figure 5, thespring 13 isrshown
as reacting against the lug-section 83,1whi1e-the
l saidtranswmission.
Y
y
' 2. In a brake construction for the rear end ofl
curved head 90 is shown asV acting against the ' a transmission including amusing, va brake band,
lower surface of the lug sectionr63». It-will also Land means contracting said brake band, said
be noted that the adjusting bolt 61 is mounted . housinghaving means on opposite sides thereof
75 inl Figure 5 inV a position with its head end dis- ' whereby said'ba'nd and contracting means. may
4
e
be optionally supported at either side of` said
housing.
_
4
A
'
Ä
Y3. In a brake construction for the rear end of
a transmission, a brake drum, a brake band as
sociated therewith, and reversible means for an
choring the brake band and Vfor contracting Vthe
sameabout said brake drum, said anchoring and
contracting means being optionally supported on
posed in the apertures of said lugs, means con
necting one'end of said member _With one lug,
means reactingagainst the other end_of said
member and against the other lug for contracting
said brake band, and anchoring means for said
construction comprising a bifurcated arm having
one arm portion linked to said contracting >means
and the -other arm portion disposed between said
lugs, said arm having its mounting portion ar
l'
4. In a brake constructionior the rear end of ` ranged to be secured in either one of tWo op 10
a transmission, a brake band, an anchoring mem- y tional positions on the siderof said transmission.
10. In a brake construction, an external con
ber-for the brake band, means detachably con
necting said anchoring member. to one side of tracting brake band having substantially identi
saidl transmission, means engageable with the cal lugs'at its ends, means for contracting said
ends
of ysaid brake band for applying the same, brake band including a member connected at one
15.
an anchoring member for said brake applying >end with one of said lugs, a rockable member
opposite sides of said transmission. »
means, and means >for detachably connecting said
second anchoring» memberto’theot‘ner side of
the transmission, both of Asaid detachable means
connected at the other end of said ñrst-men
tionedffmember and acting. against the other lug,
and an anchoring bracket .including arportion
being so `related Yto. each other that either an- v adapted to be disposed between said lugs and to 20
choring memberV may be mounted on either side receiveV said iirst'mentioned member, and a sec
of the transmission, thereby providing for theV
optional disposal of» saidY brake applying Ymeans
at either side of the transmission.
v
5. In a brake construction for the rear endof
a transmission, a brake band, an anchoring"
25.
member for the brake band, means engageable
- v/ith the ends of said brake band for applying
the same, an anchoring member _for said brake
30 appiying means, and bolt means for detachably
ond portion disposed adjacent said brake band
contracting means Vto receive the reaction there
of, said anchoring bracket being reversible to
provide for the disposition of said second men 25
tioned bracket portion at one side or the other
of the first mentioned portion, thereby accom
rmodating the reversing of said first mentioned
member and said brake contracting means.
11. In a brake construction for the rear end 30
of a transmission, iin combinatiorna pair of re
sides of said transmission, the opposite side Walls l versible> anchoring» members, each of said mem
connecting 'said anchoring members to opposite
of the latter having holes receiving said bolt
bers having identical ¿mounting portions, and
means so arranged that either anchoring mem
means on eachV side of-said transmission to op
tionally receive the mounting portions of either 35
of said anchoring members.
Vmay be mounted on either side of'the trans
Y35 ber
mission, thereby providing> for the optional dis
posal of saidibrake applying means atïeither side
of the transmission.
n
6. In a brake construction, a brake band, rela
tively stationary means adjacent which the brake
40 band is disposed, means for contracting said
brake band, and separate reversible anchoring
means detachably connected with said support
ing means and with said brake band and-»brake
contracting means, respectively.
45
~
` .
' l2. In a brake lconstruction for the rear end
of a transmission, the combination of a trans
mission housing, brake anchor receiving means
on onel side vvallV of said housing, and a similar 40
brake anchor receiving means mounted on the
other side wallrof said housing in substantially
transverse alignment with said ñrst mentioned
1orake anchor receiving means, saidrlatter means
having an offset portion linkedY to the brake op 45
'7. In a brake construction for the rear end of _ erating mechanism and reversible in position on
said housing independently of the other anchor
a transmission, a brake band, an anchoring mem
Y
ber for, the band fastened to one side of Ysaid receiving means. Y
, 13. In a brake construction, brake operating
transmission, >apertured lugs carried at the ends
of said brake b-and, means for contracting said mechanism anchoring means comprising a mem
V5.0. brake band comprising a` member extending -ber having one end formed toreceive and sup
through the apertures in said brake band lugs port portions ofV said brake operating mecha
and connected at one end with one of said lugs, nism, said end having'offset arm portions, the
a cam member pivoted to> the opposite end of other end of said member having opposite sides
said vmember and reacting against the other - formed to provide for?the‘attachment of sai-:1
memberto a support in optional positions with
either of said arm portions in uppermost posi
¿fastened to theother side of said transmission,
55 brake band lug, and means for actuating said
»cam member, an »anchor for said second member
tion.
and corresponding means formed on both said
60
anchoring members whereby they may eachbe
mounted at either side of said transmission.
Y
’
Y
Y
the external contracting type, apertured lugs
60
carried‘at thejends of Vsaid brake band, bolt
a brake band, apertured lugsiastened tothe
ends 'of the brake band, an anchorV for the 'brake
means disposed in >said apertures'and extending '
therefrom at opposite ends, spring means con
necting one end Vof Vthe bolt means to the asso
therewith for contracting the brake band, and a
said bolt means, a member slidably mounted on
8. In a brake construction for a transmission,
65
'
14. In a brake construction, a brake band of
band, bolt Ameans extending through the aper- ’ ciateé. brake band lugs for relative rocking «move 65
tures of said brake band lugs, means associated ment, cam Vmeans carried by the other end of
second anchoring means receiving said boit means ~ said kbolt means and constrained for movement
and the reaction of said brake contractingmeans, longitudinally thereof, said member having a
and
means carried vby said »transmissionat each Y head portion engageable by said cam meansjand 70
70
side thereof for optionally fastening eithersaid a cylindrical curved surface Vadapted to engage
ther other of said brake yband lugs, and means
Yanchor or said anchoring means thereto.
» 9. In a brake construction to be mounted at
the rear end of a transmission, a brake band
75 having apertured lugs „at its ends, _a membervdis
for rockingV said cam-means for contracting'rsaid
brake band.
,
l.
Y-
«
.
.
15._In combination, a¿transmission,¿a brake
75
i
5
2,133,074
drum secured to the rear end thereof, a brake - rotation, and means on each of the sides of said
band about said drum having lugs at the adja
cent ends thereof, an anchoring member for
securing the portion of said band opposite said
in ends in positionrelative to said drum, means
engaging said lugs for contracting said band
about said drum, a secondianchoring member
supporting said contracting means, and means
for supporting either of said anchoring members
in optional positions on either side of said trans
Vmission-
,
I
,
.
16. A brakey construction for the rear end of a
transmission including a circular brake band,
lugs on the adjacent ends of said band, means
15 reacting on said lugs for contracting said band,
an anchoring bracket comprising ka mounting
portion and a pair of oiîset arm portions, one
transmission optionally supporting either the
contracting means orthe anchoring means in
either of two positions thereon.
20. A brake construction including a brake
band, lugs on the adjacent ends of said band, an
anchoring bracket for said band, means engag
ing said lugs for contracting said band, an an
choring bracket for said contracting means, each
of said brackets having identical mounting por 10
tions comprising spaced apertured bosses where
by each of saidA brackets may be optionally
y mounted onthe same supporting member.
`
21. A brake construction including a brake
band, lugs on the adjacent ends of said band, an 15
anchoring bracket for said band, means engag
ing said lugs for contracting said band, an an
of said arm portions having linked connection choring bracket for said contracting means, each
to said contracting means and the other ofsaid ofY said vbrackets having identical mounting por
20 arm portions> being disposed between and in the
tions comprising‘spaced apertured bosses ma
plane of said lugs, and means for mounting said „ chined on opposite lateral faces whereby each 20
bracket on said transmission with said ñrst arm bracket may be optionally mounted in reversible
portion either above or below said second arm position on spaced supporting means disposed
portion.
25
17. A brake construction for the rear end of a'.
transmission including a circular brake band,
lugs on the adjacent ends of said4 band, means
reacting on said lugs for contracting said band,
an anchoring bracket comprising a mounting
30 portion and a pair' o_f offset arm portions, one
transversely of Vsaid band.
,
,
j 22. A brake construction for the 'rear end of
a transmission,` comprising a brake band having
adjacent >ends provided with lugs, means react
ingv between said lugs for contracting said band,
said transmission including a housing having
corresponding mounting portions on opposite 30
of said arm portions having linked connection to ~ sides thereof, and bracket means supporting said f
contracting means andadapted to be mounted
portions being disposed between and in the plane optionally on either of said mounting portions.
of said lugs and apertured to receive a portion of
23. A'b'rake construction for the rear end of
35 said contracting means, said> last-named arm a transmission' comprising a brake drum, a brake
35
_ said contracting means and the other of said arm
portion having diagonally oifset apertures and
said lugs having apertured extensions, adjusting
means' extending through one of said apertures
band encircling said drum, means for contract
ing said band, a support for said contracting
means comprising a bracket having a longitudi~
and said apertured extension of the lower lug, ` nally extending arm portion with an aperture
40 and means for mounting said bracket on rsaid
transmission With said ñrst arm portion either
above or below said second arm portion, said
therein extending parallel to the plane of the 40
bracket, a second arm portion lying in said plane
and having an aperture extending normal tov
said first aperture,`one of said arm portions cen
adjusting means extending _through the aper
ture in said second arm portion disposed farther tering said contracting means in position and
most radially from said band in either position the other forming a- pivotal connection for a
45
of said bracket.
,
thrust member, preventing cooking of said con
18. The combination, with a transmission hous
tracting means relative to said drum, and means
ing, of a brake construction at the rear end of on eachside of said transmission for optionally
said housing including a brake band, meansen
supporting said bracket thereon.
v
50 gaging the intermediate portion of said band for
24. A brake construction for the rear end of 50
adjustably anchoring it `in position, means >for a transmission comprising a brake drum, a brake
contracting the ends of said band including .an„ band encircling the drum, a bracket having a
anchoring bracket, transversely lalined sets' of pair of angularly extending arms terminating in
bosses on opposite sides of said transmission, andY „apertured -ends, band contracting means cen
Ul Ul means for optionally securing said anchoring tered for contracting- movement on one of said
means to either set of bosses and said bracket to arms and supported against cooking on the other 55
the opposite set of bosses.
.
_
.
19. A brake construction for the rear end of a
transmission, comprising a brake drum, a brake
of said arms, a `series of apertured bosses on said
bracket, a corresponding series of threaded open
ings in opposite sides of the transmission, and
band encircling said drum, means for contracting means for optionally securing said bracket to
60
said band including a bracket having >offset arml `either side of said transmission.
portions, means anchoring said band against .
'
LEO A. BIXBY.
Документ
Категория
Без категории
Просмотров
0
Размер файла
1 176 Кб
Теги
1/--страниц
Пожаловаться на содержимое документа