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Патент USA US2125432

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A. 2, 1938.
s. a. DU BRIE
2,125,432
SPRING SWITCH WITH HANDLE
Filed Dec. 2, 1936
2 Sheets-Sheet 1
29/
(7
I" w-niEEJF
52.
I
ENT R.
BY
ATTORNEY
Aug. 2,, 1938.
s. R.‘ DU 5R1:
2,125,432
SPRING SWITCH WITH HANDLE
'2 Sheets-Sheet 2
Filed Dec. 2,‘ 1936
'4
u
II
-
BY
Ei E
I§VENTOIF
ATTORNEY.
Patented Aug. 2, 1938
U NIT E
.
a .
STATES;
NT‘ OF Fl C E
2,125,432.
SPRING swrron
HANDLE.
Stanley R.- nn'. Brie, Detroit, Mich.v
Application December‘. 2’ 1.9.36} Serial? No-- v113F190
I
i Claims.‘ (01. 290-76)’
This application relates to an improvement. in
tively.. This lug I 8_,,_ serves as a stop, both in
electric switches and more particularly toa novelconstruction in a spring switch. The purpose
holding the‘parts, together, and in regulating their
movement-inthe operation of switching'as will
of the invention is to provide a simple construc5_ tion and easy operation. This purpose is accom-s
plished by so shaping the parts that they are
held together by being assembled-into each other
later appear- The actuator '2 is made. ill ‘3T1?
shape.’ and at the ends of thetop bar are‘recesses
2Z,.e.achedapted to retain one end-10f OIIeI-Of the
?at springs 231 whose other end is retained in a
in sucha manner that very few screws or other
reeessit Of‘. slide l I» The ears 25 at the ends
fasteningsare required. A further object is to
of the top, bar are Q?set from the remaining
10; provide a switch in’ which a strongpositive snapping action may be obtained in 'making. and
breaking the electric contacts.
portion of. the actuator "(50 that, when ass 10
sembled, they Will be in a. line with slide II; and
thus the springs '23- may be installed with their
Another object; is: togprovide a. switch which
maybeadapted-to, beoperated byvvan, automatic
axes in one straight line? Furthermore, springs
23.‘ are formed with notches in their ends so that
they Will remain in engagement With recesses 5,
22 and 24. At the other, 01‘ IOWGI‘, End Of, the
slide. H is mounted, by means, of an insulating
15;‘ device controlling pressure or.a_-related,_'function
in<ia,‘>w:3;ter 01: air pumping gy/,gyt;yenj_l.fv EQI this-1e31,;
son‘ a relatively’ Small: switchds providedvwith'pa
relatively large handle.
-
‘
block, a Contact carrying spring. 21.
- In-Qrder‘to enhancemothth‘e- appearancgan'd'
20:. the‘ safety, of the present- switchnit; is encased.
in a cabinet. made of insulatingamaterial;
' other objects and.» features“ will} becomehapa
parental‘ those. skilled in the artuponsexamjnas:
tion of. the following detailedldescription ‘071131.111
213;. embodiment of. the invention; which-is; ‘to. beread
with reference'totheaccompanying drawings.
In‘ these drawings;
7
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Fiérailis atop view of. the switch per se;
Fig- 5 is a Section 011 lines 5-5 of Fig- 1 with
35 some parts remOYed;
.
In the end of the. handle there is
35,._Str.11ek_-up from the member It The handle 30
- Fig. 3£is aside view in the directionof ‘the arrow1;
handle 321-
anotchr33 which engages the neck 34 of a‘ ?nger
33,-; . Eigzisasimilar viewintheon position; '
Fig.
At the lower end. of the cabinet are
electrical connectors l3rwhich support the sta
tionel‘y Contact‘ points 29;. adapted tobe. met by
the. contacts carried- by the. spring 2125
which serves as a fulcrum for the bearing Slof
Fig; lisa view of;the switch inrits cabinet and
of
plastic.
At One Side. of base" “1 iS a Struck lip-part 30
-
mine 01f; position;
The base “land, the parts carried by it are
mwnted in a bOX, 01‘ cabinet, 28’ medeofiins-ll- 20
lating material. such as hard rubber 01‘ a melded
'
Fig. 6 is a section on llnes 6—6 of lf‘le- 1;
32 1S retalned on the Pivot "by means of‘ a‘
pinili;v
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i
_
~
Operation;
The switch is operated in the following man
ner: When the end 3'! of the handle 32 is moved 35
downward from the position of Fig. 1, it slides
Fig- ’7 1s a seetlon 0n llne '|—T of Hg. 2;
the actuator l2 upwardly by means of the ?nger
Fig- 8 is a view of part of the switch mechanism;
35. The upward movement of the part l2 raises
Fig- 9 is an exploded View Showing the Parts ' the outer ends of springs 23, thus de?ecting the
40 that go to make up the Switch meehanismsprings until that point is reached at which both 40
_
Construction
_
_
_
Refe¥r1ng to Phe drawmgs, 1t W111 be sefm that
the switch consists of a base ID on which are
45 slideably mounted a contact carrying slide II and
grvlildsis, oi.’f
both
springs 23 kare
0
course, occurs w en
a straight line.-
e poin s of su
port of the springs, i. e., the pivotal recesses 1232
and 24, he in a Straight line, or, in other Words,
when’ in the position shown in Fig 1’ the hor1_ 45
a Slide actuator '23 The base '0 Fairies T9111‘
zontal plane containing the pivots in recesses 22
?ngers l4 and '5 whlch are formed Integral wlth
the base, the ?ngers '4 bemg formed ‘fit the top
of the base, and the lower ones l5 being struck
is brought into coincidence with the horizontal
plane containing the pivots in recesses 24. Until
50 up therefrom near the center. In the ?ngers I4
and 15 are grooves '5 Which retain the Sliding
parts II and I2. In back of the base I0 is a
smaller plate I‘! whose bent-up lug l8 projects
through a hole l9 in plate III and through the
55 holes 20 and 2! in the parts I I and i2 respec-
this point is reached the tendency of the Springs
is to push the slide ll upwardly. But at the in- 50
stant that this point is passed, the springs react
to push the slide II downward and the actuator
l2 upward. Since it is so arranged that after a
very slight additional upward movement of actu
ator l2 its further movement is arrested by the 55
2,125,432
arrival of ?nger 35 against the stop I8, the force
of the energy in the springs is permitted to be
used in pushing the slide l l downward to make an
electric contact between the points 29. The parts
are so proportioned that when a contact has been
made and spring 21 has been put under some de
?ective tension, the upper surface of hole 20 in
slide ll comes into contact with stop [8, bringing
the parts to rest.
10
plates in the switch and constructed to provide
guides for the plates as they slide lengthwise,
the plates being relatively slidable on each other,
the ?rst of said plates being T shaped and hav
ing rigid arms extending laterally therefrom leaf
springs connecting the ends of the arms to the
second plate, the latter having a contact there
on, and a handle for sliding the ?rst plate, move
ment of such plate beyond the over center posi 10
tions of the springs causing snap sliding move
ment of the second plate and consequent move
-'-'ment of the contact thereon into and. out of its
In the reverse direction of operation a similar
action takes place. When the handle end 3'! is
pushed upward to urge part l2 downward it de
fleets the springs 23 until that point is againl
reached where the ends of the springs are, in a two positions.
3. In a switch, a sheet metal base plate hav 15
straight line with their supports. At the instant
this point is passed the springs reactto, snap the ing four tongues bent therefrom and arranged
slide ll upward and to’ break the electric con:
tact. It will be noted that due to the deflection‘
of spring 2'! in making contact, and due. to the-'_
resultant reaction of the spring in returning to
normal positien as soon as slide II begins to
move upward, a sliding, or wiping, action is'obiv
tained between the contact points when they
separate.
25
one over the other, means for retaining the
‘
"
be made of a suitable stiffness to secure a strong
reaction, and yet the force required to operate
the switch handle 32 need not be relatively
great. And this advantage is obtained by the
30 provision of approximately a three‘to one ratio
of leverage in the switch handle.
"
>An embodiment of the invention now having
been described, reference‘wili be had to the fol-'
lowing claims for a determination of the scope
"
I claim‘:
notches 'therein, a sliding plate between the
> tongues having its edges in four notches of the
four tongues, a second sliding plate between the 20
tongues and alined with the first sliding plate
and also having its edges in four notches of the
four tongues, the two sliding plates having'regis
tering slots, a tongue in said slots forming a
I
It will also be noted that the springs 23 may
35 of the invention.
‘with pairs of facing edges, each having two
'
1. In a switch, two slideably mounted rigid
parallel plates arranged adjacent each other, one
over the other, means for retaining the plates'in
40 the switch and constructed to provide ‘guides.’ for
the plates as they slide lengthwise, the plates ‘be
ing relatively slidable on each 'other,- the~'?rst
of said plates having rigidarms extending later-4
ally therefrom, leaf springs connecting the/ends
45 of the arms to' the second plate, the latter ‘hav
ing a contact thereon, and ‘a handle ‘for sliding
the ?rst plate, movement ‘of such’ plate beyond"
bearing and stop for'the sliding plates, a tongue
bent up from the second sliding plate, a handle
having a slotted end receiving the latter tongue
and thus, pivotally connected to the second slid
ing plate, and a tongue bent up from the base
plate, the handle having a slot receiving the lat 30.
ter tongue and thus pivotally mounted‘ on the
base plate.
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4. In a switch, a sheet metal base plate having
four tongues bent therefrom and arranged with
pairs of facing edges, each having two notches 35
therein, a sliding plate between the tongues hav
ing its edges in four notches of the four tongues,
a second sliding plate betweenjthe tongue and
alined with the ?rst sliding plate and also having
its edges in four notches of the four tongues, the
two sliding plates having registering slots, a
tongue in said slats forming a bearing and stop
ing plates, a tongue bent up from the‘
for‘ the vsliding plate, a handle having a slotted
second
and receiving the latter tongue and thus 'pivot
ally connected to the second sliding plate, and
the‘over center'po'sitions of the springs'causing
snap sliding movement of the second plate‘ and
a tongue bent up from the base plate, the han
dle having a slot receiving the latter tongue and
thus pivotally mounted on the base plate, the
consequent movement‘ of the contact thereon
second sliding plate ‘having laterally'extending
into and out of its two positions.
1" '
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2. In a switch, two slideably mounted rigid
parallel plates arranged adjacent each other,
arms, and leaf springs connecting such arms to
the end of the first sliding plate.
_ ‘
STANLEY R. DU BRIE.’
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