CH124213A - Cam made of electrically insulating material. - Google Patents
Cam made of electrically insulating material.Info
- Publication number
- CH124213A CH124213A CH124213DA CH124213A CH 124213 A CH124213 A CH 124213A CH 124213D A CH124213D A CH 124213DA CH 124213 A CH124213 A CH 124213A
- Authority
- CH
- Switzerland
- Prior art keywords
- cam
- insulating material
- hub
- electrically insulating
- disk
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G04—HOROLOGY
- G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
- G04C23/00—Clocks with attached or built-in means operating any device at preselected times or after preselected time-intervals
- G04C23/02—Constructional details
- G04C23/08—Programming means
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
Description
Kurvenscheibe aus elektrisch isolierendem Stoff. Es ist bekannt, Kurvenscheiben, die zur Betätigung elektrischer Schaltapparate dienen, aus mechanisch festem Isolierstoff herzustellen und auf eine kantige Metallachse aufzuschie ben. Da die Festigkeit auch der harten Iso lierstoffe aber immerhin beschränkt ist, wird die Kurvenscheibe, nach der Erfindung nicht unmittelbar auf die Schaltwelle aufgeschoben, sondern auf eine metallische, kantige, hülsen- förmige Nabe aufgepresst, die zur Befestigung der Kurvenscheibe auf der Schaltwelle dient. Solche Kurvenscheiben können in grösserer Zahl für einen einzigen elektrischen Schaltapparat mit einer gemeinsamen Schaltwelle gebraucht werden.
Zwei derartige Scheiben, für elektrische Kontroller bestimmt, sind in der Zeichnung als Ausführungsbeispiele für die Erfindung dargestellt. Fig. 1 zeigt eine Kurvenscheibe aus Isolierstoff a im Schnitt, die auf die rund ausgebohrte Sechskantnabe b mit Loch e für die Verstiftung mit der Kontrollerwelle auf gepresst ist.
Die Nabe b ist mit einer Rille c versehen, in die das Isoliermaterial hinein gepresst ist, so dass eine Achsialverschiebung ausgeschlossen ist. Fig. 2 zeigt die Scheibe a in der Draufsicht; sie ist mit einer einge- pressten Gradeinteilung versehen, durch die die Montage der verschiedenen Kurvenschei ben auf der Schaltwelle wesentlich erleichtert wird. In Fig. 3 wird die Scheibe a durch einen Bund<I>d</I> am Umfang der Nabe<I>b,</I> um den das Isoliermaterial herumgepresst ist, an einer Achsialverschiebung verhindert.
Cam made of electrically insulating material. It is known to produce cams, which are used to operate electrical switching devices, made of mechanically strong insulating material and aufzuschie ben on an angular metal axis. Since the strength of the hard insulating materials is at least limited, the cam disc, according to the invention, is not pushed directly onto the selector shaft, but pressed onto a metallic, angular, sleeve-shaped hub that is used to attach the cam disc to the selector shaft. Such cams can be used in large numbers for a single electrical switchgear with a common switch shaft.
Two such discs, intended for electrical controllers, are shown in the drawing as exemplary embodiments of the invention. 1 shows a section of a cam disk made of insulating material a, which is pressed onto the round bored hexagonal hub b with hole e for pinning to the controller shaft.
The hub b is provided with a groove c into which the insulating material is pressed so that axial displacement is excluded. Fig. 2 shows the disk a in plan view; it is provided with a pressed-in graduation, which makes the assembly of the various cam discs on the selector shaft much easier. In FIG. 3, the disk a is prevented from axial displacement by a collar <I> d </I> on the circumference of the hub <I> b, </I> around which the insulating material is pressed.
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE124213X | 1926-04-03 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH124213A true CH124213A (en) | 1928-01-02 |
Family
ID=5658144
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH124213D CH124213A (en) | 1926-04-03 | 1926-12-08 | Cam made of electrically insulating material. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH124213A (en) |
-
1926
- 1926-12-08 CH CH124213D patent/CH124213A/en unknown
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