DE1978266U - CAM SWITCHES. - Google Patents

Description

Patent attorney

Dipl.-Ing. E. Eder

Munich 13, Elisabethstrasse 34

Cstrr Fastener Company Ltd,

ingland

Squat switch

The Heuerang concerns a cam switch, with one cam-shaped Eotoa? and at least one sponsor, bsi ^ eglichea contact arm with a lateral, when acted upon through the Eotox the contact arm with one Fixed contact in engagement pressing approach *

With such well-known switches, a faster switching process should be enabled with the help of an iBsataes and the cam shape of the bot.

so do not absorb any excessive pressure caused by the rotor * If this movement is transmitted directly to the contact arm via the contact arm after the contacts are closed, the contact arm bends and can persist due to this constant and repeated load deformed, © odurcL · the functionality of the switch is significantly impaired «

Furthermore, a cam switch is known in which - * the contact arm is normally constantly fixed with the Contact is engaged. urä only by the rotor noeke out of engagement, this tuck arrangement

·· - ■■■ * .- '■■■ -:> v -' ■

is therefore from IPedsrdruclc on the contact dependent -where-. "

is not always given by the functional security ¹ } the. Contact, with the iContalst is frictional -and .S

Me & qt task now is to present Neuprung * * create iiockenschalter su, who despite a-- · times lufbaus and simple production always is a guarantee for sin functionally reliable Arliiiten.

This © object is renewal according achieved in that the movable contact in a known manner cleaved partially curved _s and is itself formed from a Kontaktarmfläolie tongue extending resilient as arcuate "in a portion which is acted upon in bogenförmigea portion of Hotor and the artist part of the contact facing and en has this past movable free end.

Since the free end of the tongue is unattached, the tongue can be bent even further by the eotor after the contacts have been closed, the free tongue end moving past the connecting contact arm and protruding on the other side of the arias. This free relative movement is important "they dsnn allows the .Zunge _excessive} 3eden ,, aufsufangea from Hotor notified pressure without d © n contact to incriminate himself. without pliers so excessive pressure would bend by fortge setsteii operation of Eotors the contact arm so that it © ine 3? orai assumes that this would seriously impair the exact function of the switch · The flexible tongue provided is transferred to the contact - however, only the pressure required for the tripping and closing of the contacts is transmitted »

Another one? Is _Yorfceil} that the sieve of a resulting excessive or Rsi linen Eotorfläclie Her stelluagstolsran ^ s of is flexible tab automatically failed'll · So far special in forming the Rotornoo & e "B'ilaision was required to au would ensure» ^»Ssass & i © s just enough pressure j exercises to the contact arm sum .3i! ßließen contacts zn ■ move "be undersize of the crystallizer itself can not have a good closing of the contacts _reach down and oversize the JSöBtaktaria is not only bent and damaged,

ier print sswiaoben duji lioötakten usually starJ: and .era eyes excessive wear and tear, leading to .schXecl? tem ele & trischea Eoiatakt leads.

■ width; * ® Merife & ale- ■ and advantages »lea? Firing result from ('eic ' aachseiiad the description of one of the diagrams shown in the z.eicantfngfcn from Ib the drawings show:

tig, 1 eis © perspekti-vi-sch (»- Bar setting of an Auabil & ungafora an α movable con

Fig. S a schessatisehe Bai? 3telluBg of the in a mock switch of straightforward contact, and in particular a moving contact out of engagement with

' ■■ ■ 5

a fixed contact j. 3 a similar position as Fig. £,

however, or moving contact

is shifted by the rotor so that

he engaged with; the Eestkontakt

represents;
Fig. 4 is a side view of a squat neck.

ters with contacts J 2? ig ». 5 ei »© On top of that, in 3? Ig · 4 presented -

put switch;

a cross-section along the line A-A lig. 4th

As shown in Fig. 1-5, the be? / Eglicne coatact is formed from an elastic metal strip which has an arm 1 with a contact tip 2 on its free end "Adjacent to the opposite side the strip is bent over" to form a section 5 and a round part 4 to rest on a cable of the switch body, as well as a Falans 5 to be attached to a wire * A cable of the arm 1 is cut and bent between the ends to make it elastic To form tongue 6, which protrudes from the plane of the body, this tongue extends in around the way of a notched rotor 7,

δ -

äer has a raised crouch 8 so that the elastic tongue of a driver for the cam represents

i © r arm 1 of the Streiieas is * «a section 3 Eerdm hinged so that the same does not come automatically to its normal (in FIG · 2 illustrated) Buhestellung zuriiqM ^ EBRT _s wean it with the Hotor engages and is deflected by it * When the Hotor is rotated into the position shown in Pig * 3, oil cam elevation 8 engages in the flexible 2unge 6 and transfers the pressure ₉ lasa the arm 1 into engagement with the Pest contact 9 ? M and the circuit via the contacts' au sohließen · When the elastic Zti33ge aicht provided ary _i} so it would be necessary that the pressure exerted 8 aerhöhung of the mock @ very accurately determined Vviäre to sicherzugehea that sufficient pressure is applied to the engagement ü.e:? c Eon Cycle without overstressing the contact macaw 1, however, due to the arrangement according to the innovation, any excessive pressure exerted by the raised crouch is exerted by the elastic pressure. Acceptance accepted ₉ . which then in the in-Fig. 3 bends in the position shown so that the arm 1 of the strip is seen to be overstressed

■ f

Engagement pressure dor contacts 2 and 9 regulated very precisely can be*

The application of the fire to a switch having a plurality of switching elements, each of which comprises a Kotor disk, is shown in Fig. 4-6. Here, 10 is the switch housing, in which an axle 11 is rotatably mounted. Three rotor discs, each of which has cam-shaped circumferential surfaces, are attached to the axle 11. In Pig. 6 is shown "c.ino with'-χ designated Kotor disk. The bcwogli'chen- contacts a and b are in opposite, Boai'ohung to each other, a" eder is attached to the opposite side of the rotor disk, with the free 'side Each movable contact has a contact, epitzG, 2 on opposite surfaces and two opposing test contacts 9j 12 and 9a, 12a ', the latter contacts being provided on the ends of metal strips 15' j whose end pieces to ze by Scheit- in the switch housing for connection to line 7 '''' · 'd .-' ühten extend. the lugs 5 on the movable Kon-- '.' ■ / <

ι \ ^r

^{1 l} * "

They also extend through slits in the Switch housing for connection with lead wires and the Fabne ^ uiid the solder lug 5 a of each contact is used aur SofoGtiguag the contacts on the switch housing.

-, 8th

When the parts are in the position shown in Fig. 6, a part of the circumferential cam surface χ of the rotor disk 3c Xm engages the elastic tongue of the contact a to exert a pressure on the body 1 of the contact is bent into a position where the tip 2 is engaged with the fixed contact 9 "It is to be noted that the tongue is4 6 slightly bent to the body 1 toward another Έο ckenflache χ of ßotorscheibe ζ engages die'Zunge 6 of the contact b, a in order to keep the contact in a vertical position, with the - Spitaen 2 in an arc of distance between the Festkoatak'ten 9a and 12a. , ·.

It is understandable that in the embodiment according to ^; . Kg. 6-'äie IJfockenoberflache x " ¹ and χ on the Hotor -

. are arranged in such a way that, during a complete rotation of the disc, the movable contact can be moved into a position where it is in the fixed cone. It grips 9 egg into a second position, where it is removed from the Konfa2ct:., - 9. 'and i2, and a third position, ' ** $$ ', QT ■ engages in the fixed contact 12 . The _rj ^ movable contact-b is also in a position-

Essentially, '^ o he intervenes in the plague contact 9a, in a'' zvi exte ■ position, where he is disconnected from the contacts 9a and; 12a is removed in a third position, "where he is in the

9 *

-ν 9

Fixed contact 12 a engages. The arm 1 of the corresponding Contacts is hinged around the loop part 3 to be automatically moved to the second or third position to be »if he is by the scope of the appropriate Squat surfaces are given the freedom to do so. ■:.

As shown in Fig. 6, contact b is out of engagement with the .TPest contacts 9a and 12a when contact a engages in the fixed contact 9. ·

The remaining rotor disks of the switch with the three switching elements - according to SIg..4 - 6 are also equipped with appropriately shaped crouching surfaces in order to regulate a pair of movable contacts in relation to a pair of electrical contacts in the similar manner described ".;. V: ■ "■;'· ■ ·."..'. ■

The newly-erungsgemäße switch is particularly suited there, -where-a variety of switch assemblies required · lent is "" for example, to control the speed. · '' And warmth © ines' heat fan _t where vier'Schalt positions are required in the first of which the fan is controlled to work at half speed and half heat generation, full speed with a second switch position and half heat generation, with a third switch position full speed and full heat generation *

~ 10 -

Winding and with a fourth switch position full Speed and no heat generation.

The switch can 'have two or more switching elements'- each having a rotor disc for controlling the moving contacts.

the embodiment shown in Fig. 4-6

a pair of movable contacts is controlled by each .RO torsp'heibe, kanri one or more der'Rotorscheiben be formed so that they -Taxes only a single movable contact ^·.

'Patent attorney

Dipl.-Ing. E. Eder

Munich 13, Ellsabethstrasse 34

Claims (1)

_ "P.A.7ÖG 111-8.126? , .- Ing. E. Eder 13, Elisabethstrasse 34. Schut ζ a η s ρ r üc he 1. Cam switch, with a cam-shaped Hotor and at least one resilient * movable contact arm with a lateral, when acted upon by the P.otor engages the contact arm with a fixed contact oppressive approach, characterized in that the movable contact arm (1) in what is known? Way partially split, curved «and in one part as arched, resilient> sieve from one contact area extending tongue (6) is formed, soft in the arched section of the botoa? can be hit is and one of the other part of the contact " arms facing and free end that can move past it 2 * cam switch according to claim 1, characterized ■ that the contact arm (1) is attached to a fixed support has attachable base part (4) and with a one-piece, Arched section (J) adjoining the base part in the area of the carrier for movement of the contact arm (1) formed opposite the base part is" Patent attorney Dipl.-Ing. E. Eder Munich 13, Ellsabethstraßs U whether 0 » ^fe ™ ^e _kn ^ _{k> can iedefze} it without proof firel ^^^ ZZ * S ÄSi «-on you photocopies reoWHchen interest free of charge. viewed wträee. ouch ^ J Gdu ^ tamus delivered to the usual prefew.