DE473980C - Roller switching device in which movable switching elements are controlled by a cam roller for switching on and off - Google Patents
Roller switching device in which movable switching elements are controlled by a cam roller for switching on and offInfo
- Publication number
- DE473980C DE473980C DEV20960D DEV0020960D DE473980C DE 473980 C DE473980 C DE 473980C DE V20960 D DEV20960 D DE V20960D DE V0020960 D DEV0020960 D DE V0020960D DE 473980 C DE473980 C DE 473980C
- Authority
- DE
- Germany
- Prior art keywords
- switching
- roller
- contact
- controlled
- movable
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
- H01H1/14—Contacts characterised by the manner in which co-operating contacts engage by abutting
- H01H1/22—Contacts characterised by the manner in which co-operating contacts engage by abutting with rigid pivoted member carrying the moving contact
- H01H1/221—Contacts characterised by the manner in which co-operating contacts engage by abutting with rigid pivoted member carrying the moving contact and a contact pressure spring acting between the pivoted member and a supporting member
Landscapes
- Transmission Devices (AREA)
Description
Walzenschaltvorrichtung, bei der zum Ein- und Ausschalten bewegliche Schaltorgane durch eine Nockenwalze gesteuert werden Die Erfindung betrifft Schaffi@orrichtungen. für Elektromotoren, bei denen die kontaktgebenden Teile nicht auf der die Bewegung der Schalter bewirkenden Walze, sondern ,auf feststehenden Leisten angebracht sind. Solche Schalter sind zwar schon bekannt, sie besitzen aber Nachteile, da sie viel Platz brauchen und umständlich und kostspielig herzustellen sind. Auch nach der Erfindung wird der Strom an zwei feststehenden Klemmenleisten zu- und abgeführt, doch sind diese zur Schaltwalze symmetrisch angeordnet. Die eine Kontaktleiste trägt die eigentlichen nebeneinanderliegenden Kontakte, welche je nach der Schaltung miteinander verbunden oder zu einem gemeinsamen Kontakt vereinigt sind, während die andere Kontaktleiste zur Befestigung der Kontaktfinger dient. Die Kontaktfinger ruhen mit entsprechend geformten Enden in Vertiefungen der an dieser Kontaktleiste sitzenden Klemmenteile und sind mit Federn an diesen befestigt, so daB sie sich beim Schalten nicht aus den Vertiefungen herausheben können. Durch seitliche Führungen an den Kontaktfingern ist eine Querverschiebung verhindert. Nocken, die auf der Schaltwalze sitzen, heben beim Ausschalten die Kontaktfinger von den Gegenkontakten ab und spannen die Haltefedern.Roller switching device with movable for switching on and off Switching elements are controlled by a cam roller The invention relates to Schaffi @ orrichtungen. for electric motors in which the contact-making parts do not depend on the movement the switch causing roller, but are mounted on fixed strips. Such switches are already known, but they have disadvantages because they have a lot Need space and are cumbersome and expensive to manufacture. Even after the Invention, the current is supplied and discharged to two fixed terminal strips, but these are arranged symmetrically to the shift drum. Which carries a contact strip the actual adjacent contacts, which depending on the circuit with each other connected or united to a common contact, while the other contact strip is used to attach the contact fingers. The contact fingers rest with accordingly shaped ends in recesses of the terminal parts seated on this contact strip and are attached to these with springs so that they do not turn off when switching can lift out the indentations. With lateral guides on the contact fingers a lateral shift is prevented. Lift cams that sit on the shift drum when switching off the contact fingers from the mating contacts and tension the retaining springs.
Die Abbildungen geben eine mögliche Ausführungsform, und zwar zeigt Abb. i die Einschalt-, Abb.2 die Ausschaltstellung des Schalters. a ist die Schaltwalze mit dem Nocken b. c und d sind die beiden Kontaktleisten. c trägt den Kontaktteil e, der eine Vertiefung f besitzt. In dieser lagert das eine Ende des Kontaktfingers g, das andere Ende von g ruht in der Einschaltstellung auf dem Kontaktteil h der Kontaktleiste d. Die Feder i zieht in der Einschaltstellung den Kontaktfinger g gegen die beiden Kontaktleisten ;c und d .und verhindert in der Ausschaltstellung (Abb. 2) ein Herausheben des Kontaktfingers g aus denn Lager ; f . Um ein seitliches Verschieben zu vermeiden, ist der feste Kontaktteil e so ausgebildet, daß er mit einem Ansatz zwischen die beiden Führungen k des Kontaktfingers greift. - An diesen ist noch eine Rolle l befestigt, die den Angriffspunkt des Nockens b der Schaltwalze a bildet.The figures show a possible embodiment, namely Fig. I shows the switch-on position, Fig.2 shows the switch-off position. a is the shift drum with the cam b. c and d are the two contact strips. c carries the contact part e, which has a recess f. In this one end of the contact finger g rests, the other end of g rests in the switched-on position on the contact part h of the contact strip d. In the switched-on position, the spring i pulls the contact finger g against the two contact strips; c and d. And in the switched-off position (Fig. 2) prevents the contact finger g from being lifted out of the bearing; f. In order to avoid lateral displacement, the fixed contact part e is designed so that it engages with a shoulder between the two guides k of the contact finger. - A role l is still attached to this, which forms the point of application of the cam b of the shift drum a.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEV20960D DE473980C (en) | Roller switching device in which movable switching elements are controlled by a cam roller for switching on and off |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEV20960D DE473980C (en) | Roller switching device in which movable switching elements are controlled by a cam roller for switching on and off |
Publications (1)
Publication Number | Publication Date |
---|---|
DE473980C true DE473980C (en) | 1929-03-23 |
Family
ID=7578856
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEV20960D Expired DE473980C (en) | Roller switching device in which movable switching elements are controlled by a cam roller for switching on and off |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE473980C (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE958755C (en) * | 1942-11-24 | 1957-02-21 | Dr Techn Wolfgang Kniel | Cam switches |
DE973460C (en) * | 1951-02-23 | 1960-03-03 | Metzenauer & Jung G M B H | Control device for the periodic reverse operation of a three-phase motor |
US4554427A (en) * | 1983-12-19 | 1985-11-19 | Westinghouse Electric Corp. | Molded case circuit breaker with movable lower electrical contact |
-
0
- DE DEV20960D patent/DE473980C/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE958755C (en) * | 1942-11-24 | 1957-02-21 | Dr Techn Wolfgang Kniel | Cam switches |
DE973460C (en) * | 1951-02-23 | 1960-03-03 | Metzenauer & Jung G M B H | Control device for the periodic reverse operation of a three-phase motor |
US4554427A (en) * | 1983-12-19 | 1985-11-19 | Westinghouse Electric Corp. | Molded case circuit breaker with movable lower electrical contact |
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