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Патент USA US2404523

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4' July 23, 1946.
2,404,523
I. NESSON
CONNECTOR FOR WINDSH'IELD WIPER ARMS
" Filed March 20, 1945
lzzzrezai‘or
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_
Israel Nesson,
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?iloraeys.
Patented July 23, ‘1946
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2,404,523
_ PATENT 1 OFFICE
2,4045%
' V CONNECTOR. FOR WINDSHIELD
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'YWIIfERARMS‘
_ Israel Nesson, Lynn’.-Mass., 'assignor to Max'
v. ‘Zaiger, Swampscott, Mass.
5 ] j-sppiicsepii‘iiiamh 20, 1945, Serial No. 583,820
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(Cl. 287-103)
10 Glaims.
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arm end, with the U-shaped attachment re
moved.
In the form of the invention illustrated in Figs.
1 to,3» and ‘17,- the forward end of the wiper arm
end of the wiper arm and the clip‘ or hanger car
ried by the wiper blade. "
' .5 ll, is equipped with a U-shaped attachment l2
having paralleldepending sides 1 3 which straddle
' The conventiona1 types of connection hereto
the end portion of the arm, and the extreme end
fore usually‘ employed for this purpose have com
ofthe arm is inclined; downwardly between the
prised a hook carried by'the arm and engaged in
sides‘ l3'and formed with marginal notches or
a slot formed in the blade hanger, or a hook
projecting from the hanger and engaged in a slot 10 recesses [5, thereby providing a T-shaped tip ter- 1
minatingina hinge bar or pivot l6 which bridges
formed in the end of the arm. These connections
thespace; between the sides [3 and is disposed at
are loose, noisy and ine?icient; and 'tliewear be
an ,ginclinediangle with respect to the planeof the
tween the protruding hooks and the slotted parts
arm. The wiper arm‘ll ‘may be a thin bar of
mars the ‘surfaces and induces rusting of the
15 metal,; and the U-shaped attachment may be a
v.I.I1.§1.t.al__“stamping; and these parts are fastened to
It is the principal purpose of the present in
nether. as shown, byarivet l1. It will be under- '
vention to obviate these objections to the con
stood thatthe ‘rearward end of the elongate arm
ventional connectors by providing a new, e?icient
maybe suitably connected to a motor (not shown)
and economical type of attachment which avoids
the use of the ordinary hook and slot connection, 20 which :swings the arm and the blade attached
thereto across the surface of the windshield.
aiiords a smooth and ‘true pivotal movement be
'jfI'hje wiper blade 18 and its holder. or casing I9
tween arm .and blade, andjensures security of
may beofaany usual form and construction, and
the connected elements while permitting easy
may be attached in any suitable manner to the
removal and replacement of. the blade when .de
This invention relates to windshield wipers and ‘
pertains ‘more particularly to improvements in
the separable coupling 0r connector between the
worn
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v25connector or hanger 20. As here shown'and as
sired.
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Recommended embodiments of.‘ the invention
are illustrated in the accompanying‘ drawing, but
it' will be understood that the structural details
of the devices herein shownv and "described may
‘be varied‘ without departing from the essence of
this invention as de?ned in the appended-claims.
In the drawing,
.
Fig. 1 is a side view of thelce'ntral portion of “a
wiper blade and the end portion-oi a wiper arm
operatively attached by the improved connection,
‘the ‘U-shaped end attachment of the wiper arm
being shown inlsection;
more fully described in Zaiger Patent 2,280,566,
datedApril 21, 1942, the attachment provides for
lateral tilting orrocking of the connector with
:respect to the blade, and comprises a saddle or
30 sub-clipZl riveted to the blade holder, abearing
plate 22 and a hinge plate 23 for pivotally attach
‘ing the ,U-shaped connector or clip 20 to the
saddle 2|. This type of attachment is not mate
rial to this invention which relates to the improved
;, 35 1 pivotal- connection or coupling between the clip 20,
however attached. to the blade, and the wiper
Fig. 2 is a detail side view of the wiper arm en
and the connector, illustrating the position of the
parts when the arm is to be applied to or detached ,
:armll.
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For that purpose, the clip orconnector 20 com
prises». a pair of parallel side members 24 receiv
401ab1e betweenthe sides 13 of the attachment’ 12.
Each, ofthe sides 24 has an endwise slot 25 dis
posed substantially parallel to the blade and com
municating with a relatively‘large circular open‘
Fig. 3 is a section on line 3~—3 of Fig.‘ 1;
;ing; 26', .‘the axially; aligned openings of the re
Fig. 4 is a side view of We U-‘shaped end attach
ment of the wip'er’arm, illustrating a modi?cation 45 .spective sides constituting a retaining socket. for
from the connector, the end ‘attachment being
shown in section;
of its coupling means;
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Fig, 5 is a section taken on line 5-5 of Fig. 4; '
Fig. 6 is a. perspective view or a modified term
of connector. adapted tor use either with a hook
pivotal movement of the hinge bar I6 oirthezwiper
.arm which is insertable therein» through the slots
:_<25'when the parts are in the inoperative position‘
‘ash-cumin Fig. 2. _, The hinge bar is non-circular
type arm or with the improved types of arm end . 5.0iand-preferab1y
shown in Figs. 1 to 5;‘
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rectangular in cr0ss-;section, and
it will be appreciated that the thickness of the
rectangular bar portion 16 of the T-shaped'en'd
of» the arm should be slightly less than the width
:of'the‘slots ,25, and that the width of the bar
U-shaped attachment removed; and _ .
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51 Fig. 8 isv a detai1 side view pfagmodi?ed iorin of . 55 ; should bejslightlyv less than the diameter oithe
Fig. 7_is a detail perspective view of. the end
portion of the wiper arm of Figs.- '1 1103, with. the
2,404,523
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openings 26, to afford proper clearance for easy
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26 until the hinge bars 54 and 55 are brought into
parallel relation, as by ?nger pressure on the bow
58 to ?ex the bottom strip, when the wiper ele
application and removal of the arm end while en
suring a pivotal connection when the parts are
operatively attached by swinging the arm to oper
ative position, such as the position of Fig. 1.
ments are to be separated.
I claim:
The side recesses l5 of the T-shaped arm end
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have su?icient width and depth to accommodate
l. A coupling for separably and pivotally con
necting a windshield wiper arm to a wiper blade,
the curved upper jaws'2'l of the connector sides,
comprising a connector fastened to the blade and
so that the arm may be freely swung from the
having a side member extending parallel to the
position of Fig. 2 to the position of Fig, 1. The 10 blade and provided with a slot entering one end
outer edges of the upper jaws 21 and the lower - thereof and a relatively large opening there
jaws 28 which de?ne the slots 25 and-openings 2,6, through in communication with said slot, and a
are arcs of circles centered in said openings,‘s0; _ ' complemental attachment at the end of the wiper
that said edges constitute guides or bearings for
arm, including a transverse hinge bar of non
the top of the U-shaped attachment ‘i2, ry'rhepe»
circular cross-section, the bar being receivable in
said opening by passing it edgewise through said
ripheries of said jaws thus guide the angular -'
movement of the arm relativeito ‘the connector, on f
the pivot formed by the hinge bar I 6; and, the in- _ ,
slotwhen the wiper arm is in an inoperative
position and being rotatably retained within said
opening when the arm is in operative position.
ter?tting sides of the attachment I2 and connece
2. A coupling for separably and pivotally con
tor 20 prevent relative lateral movement between 20
necting a windshield wiper arm to a wiper blade,
the connected parts. Smooth and’ non-chatter
comprising a connector'fastened to the blade and
ing operationof the wiper blade is thus ensured
having an end portion formed with arcuate edges,
even though the actualoperative angle between
said‘end- portion having a relatively'narrow slot
the arm and blade is substantial, and separation
of the wiperelements is possible only when the 25 and ‘a relatively large opening disposed in com
arm is moved to the position of Fig. 2.
munication therewith, and a complemental, at
tachment at the end of the wiper arm, including
The hinge bar at the end of the wiper arm ob
viously need'not be an integral part of the arm,
as shown in Figs. 1, 2 and 7, and the U-shaped.
member I? need not be a separate attachment, so
long as'the forward'end of the arm is provided
with depending sides [3 winch-embrace the sides
a transverse hinge bar of non-circular cross-sec
tion and a top part overhanging said bar, the bar
being receivable in said opening by passing it
edgewise through said slot when the arm is in an
inoperative ,positionand being rotatably retained
of the connector, and with'a hinge bar‘suitably'
within said openingwhen the arm is in operative
?xed between the ‘sides l3.
In Figs. 4 vand 5, for example, the end attach- 5
ment 32 of the wiper arm (whether a separate
position with respect to the blade, and said top
part engaging said arcuate edges and being
guided thereby while .thepivotally attached arm
part or<integral with the arm) has depending,
is swung relative to the blade.
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sides 33,1 and a hinge bar 34 bridges the space
A coupling for separably and pivotally con
between the sides and is ?xed therebetween at
necting a windshield wiper arm to a wiper blade,
the desired inclination by lugs 35 secured in com- Y’ .40 comprising a connector fastened to the blade and
plemental openings in said sides. I
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having upstanding sides each formed with a slot
In the modification illustrated in Fig. 6, the
at one end of the connector and a relatively large
connector or clip 4Il;is similar étothe clip 20 of
Figs. 1 to 3, bu't‘its sides 4! are provided with tabs
opening in communication with the slot, the
openings in the respective sides being axially
li5ib>ent inwardly from their upper edges ‘and serv
aligned, and an attachment at the end of the
ing'asa cross-link to which the hooked end of a
vconventional wiper arm may be connected by,
wiper arm, having depending sides adapted to
embrace said connector sides, and a hinge bar of
non-:circular cross-section disposed between the
‘passing ‘the hook between the sides 4| to engage
sides of‘ said attachment, said bar being receiv
the link. 'Ifhi'styp‘e' of connector may thus be
selectively used with the conventional hooked 50 able in said openings through said slots when the
wiper arm is in an inoperative position and being
pivotally retained therein when the arm is in
arm or with the improved arm therein disclosed.
In order to prevent accidental separation of
the connected parts when the hinge bar is aligned
I with the connector? ‘slots, as in the position of
operative position relative to the blade.
, 4. -A coupling for separately and pivotally con
necting a windshield wiper arm to a wiper blade,
comprising a connector fastened to the blade and
having upstanding sides each formed with a slot
at one end of the connector and a relatively large
Fig. 12, the armfend maybe provided with a spring 1
‘element, as shown in the further modi?cation of
Fig. 8, to resist separation while permitting easy
normal attachment of the wiper arm. The modi- ‘
circular opening in communication with theslot,
'?ed arm end consists of two thin strips 5| and 52
securedin superposed relation,_-va's by a rivet l' 60 the openings inrthe respective sides being axially
aligned and constituting a pivotal bearing, and
passed through complemental holes 53 therein,
an attachment at the end of the wiper arm, hav-'
and also, serving to ,fasten said strips to-a U-_
ing depending sides adapted to embrace said
shaped attachment ,injthe relation illustrated
connector sides, and a'hinge bar disposed be
in Figs 1 and 2. The extreme ends of both strips
are inclined ‘downwardly and ‘terminate in co- * tween the sides of said attachment, said bar be
ing receivable in said openings through said, slots
operating hinge bars 54 and 55- respectively, de
when the wiper arm is in; an inoperative, posi
?nediby the edge recesses 56 and 5‘l,vas hereto
‘ ‘fore explained; but the narrow portion of- the, tion; and being pivotally retained therein when
cthevarm is inoperative positionrelative to the
bottom strip 52 is bowed outwardly at 58, thereby
springing the vrespective hinge bars to inwardly ‘i ‘blade, the bar being substantially rectangular in
‘ ' diverging relation, as shown in Fig; 8.
cross-section and of a width and thickness cor
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’ _'I‘he>'-_i''esilien'tly diverged hinge bars‘ may be
‘ lreadily pressed through the-connector slots when l
"the wiper arm is'applied to the __co-_nriector,~but
respondingrespectively to the diameter of the
openings and the width ofthe slots.
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5. A coupling'forseparably and pivotally con
‘ r-will lock the-arm pivot in the. retaining sockets;173-5 necting a; windshield ‘wiper arm- to vaWiper blade,
9,464,5éé
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Comprising a connector fastened to the blade and
having upstanding sides each formed with a slot
at one end of the connector and a relatively large
circular opening in communication with the slot,
the openings in the respective sides being axially
aligned and constituting a pivotal bearing, and
an attachment at the end of the wiper arm hav
6
the size of the openings and the width of the
slots.
8. A coupling for separably and pivotally con
necting a windshield wiper arm to a wiper blade,
comprising a connector fastened to the blade and
having upstanding sides each formed with a slot
at one end of the connector and a relatively large
ing depending sides adapted to embrace said con
circular opening in communication'with the slot,
substantially parallel to the plane of the blade
and said bar being substantially rectangular in
providing a hinge bar disposed between the sides
of said attachment, said bar being receivable in
said openings through said slots when the wiper
arm is in an inoperative position and being piv
the openings in the respective sides being axially
nector sides, and a hinge bar of non-circular
cross-section disposed between the sides of said 10 aligned and constituting a pivotal bearing, and
an attachment fastened to the wiper arm and
attachment, said bar being receivable in said
having depending sides straddling the end por
openings through said slots when the wiper arm
tion thereof and adapted to embrace said connec
is in an inoperativelposition and being pivotally
tor sides, the end of the arm being downwardly
retained therein when the arm is in operative
position relative to the blade, said slots being 15 inclined and having a substantially T-shaped tip
cross section and disposed‘ at an inclined angle
with respect to the plane of the wiper arm.
6. A coupling for separably and pivotally con 20 otally retained therein when the arm is in op
erative position relative to the blade.
,
necting a windshield wiper arm to a wiper blade,
9. A coupling for separably and pivotally con
comprising a connector fastened to the blade and
necting a windshield wiper arm to a wiper blade,
having upstanding sides each having an end por
tion formed with an arcuate edge, a relatively ' comprising aconnector fastened to the blade and
narrow slot and a relatively large opening in com 25 having upstanding sides each formed with a slot
at one end of the connector and a relatively large
munication therewith, the openings in the re
opening in communication with the slot, the
spective sides, being aligned and centered with re
openings in the respective sides being axially
spect to said edges, and the slots extending for
aligned, the end of the ‘wiper arm being down
wardly of the openings toward said arcuate edges,
and an attachment at the end of the wiper arm 30 wardly inclined and having a T-shaped tip pro
having depending sides adapted to embrace said
viding a hinge bar receivable in said openings
connector sides and having a top adapted to slide
through said slots when the wiper arm is in an
inoperative position and being pivotally retained
on said arcuate edges when the parts are pivotally
therein when the arm is in operative position
connected to guide relative movement thereof, and
a hinge bar of non-circular cross-section disposed 35 relative to the blade, the thickness of said bar
between the sides of said attachment, said bar
being less than the width of said slots, and the
being receivable in said openings through said
slots when the arm is in an inoperative position '
width of the bar being greater than its thickness
but less than the size of said openings.
10. A coupling for separably and pivotally con
and being rotatably retained therein when the
arm is in operative position relative to the blade. 40 necting a windshield wiper arm to a wiper blade,
'7. A coupling for separably and pivotally con
comprising a connector fastened to the blade
necting a windshield wiper arm to a wiper blade,
and having upstanding sides each formed with a
comprising a connector fastened to the blade and
slot at one end of the connector and a relatively
having upstanding sides each having an end por
large opening in communication with said slot,
tion formed with an arcuate edge, a relatively 45 the openings in the respective sides being axial
narrow slot and a relatively large opening in
communication therewith, the openings in the
respective sides being aligned and centered with
ly aligned, and an attachment at the end’ of the
wiper arm consisting of a pair of superposed
strips having downwardly bent ends, the sides
respect to said edges, and the slots extending
of said strips being notched at the bends thereof
forwardly of the openings toward said arcuate 50 providing ?exible T-shaped tips constituting
edges, and an attachment at the end of the wiper
hinge bars receivable in said openings through
arm having depending sides adapted to embrace
said slots when the wiper arm is in an inopera
said connector sides and having a top adapted
tive position and being pivotally retained therein
to slide on said arcuate edges when the parts are
when the arm is‘in operative position relative to
pivotally connected to guide relative movement 55 the blade, the combined thickness of the bars
thereof, and a hinge bar of substantially rectan
corresponding approximately to the width of said
gular cross-section disposed between the sides of
slots, said strips being spaced from each other at
said attachment in a plane oblique to the plane
their bends so that the respective hinge bars nor
of said top, said bar being receivable in said
mally diverge from each other rearwardly of the
openings through said slots when the arm is in 60 tips, thereby to lock the bars in said openings
until one of the strips is ?exed toward the other
an inoperative position and being rotatably re
to bring the bars into substantially parallel re
tained therein when they arm is in operative po
lation.
sition relative to the blade, the width and thick
ISRAEL NESSON.
ness of said bar corresponding respectively to
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