DE473792C - Variable resistor with a wire coil spring placed around a rotatable disc - Google Patents
Variable resistor with a wire coil spring placed around a rotatable discInfo
- Publication number
- DE473792C DE473792C DEW63842D DEW0063842D DE473792C DE 473792 C DE473792 C DE 473792C DE W63842 D DEW63842 D DE W63842D DE W0063842 D DEW0063842 D DE W0063842D DE 473792 C DE473792 C DE 473792C
- Authority
- DE
- Germany
- Prior art keywords
- variable resistor
- coil spring
- rotatable disc
- placed around
- wire coil
- 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
- H01C—RESISTORS
- H01C10/00—Adjustable resistors
- H01C10/30—Adjustable resistors the contact sliding along resistive element
- H01C10/32—Adjustable resistors the contact sliding along resistive element the contact moving in an arcuate path
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Adjustable Resistors (AREA)
Description
Regelwiderstand mit einer um eine drehbare Scheibe gelegten Schraubenfeder aus Draht Die Erfindung betrifft einen Regelwiderstand mit einer um eine drehbare Scheibe gelegten Schraubenfeder aus Draht, gegen die ein Blattfederkontakt anliegt.Variable resistor with a helical spring placed around a rotatable disc made of wire The invention relates to a variable resistor with a rotatable Washer-laid coil spring made of wire, against which a leaf spring contact rests.
Nach der Erfindung ist ein Isolierstück zwischen die Enden des Widerstandsdrahts eingesetzt, das die tangential zum Widerstandsdraht gerichtete Kontaktfeder vom Widerstandsdraht abhebt.According to the invention there is an insulating piece between the ends of the resistance wire used that the tangential to the resistance wire directed contact spring from Resistance wire takes off.
Blattfederkontakte in Verbindung mit einer Schraubenfeder als Widerstandsdraht sind bekannt, neu aber ist die Anordnung des Isolierstücks in Verbindung mit tangentialer Lage der Kontaktfeder, die einen besonders guten Kontakt und leichtes Abheben der Feder ergibt.Leaf spring contacts in connection with a helical spring as resistance wire are known, but new is the arrangement of the insulating piece in connection with tangential Location of the contact spring that ensures particularly good contact and easy lifting of the Spring yields.
Auf der Zeichnung ist ein Ausführungsbeispiel des Erfindungsgegenstandes dargestellt.The drawing shows an embodiment of the subject matter of the invention shown.
Abb. i ist ein senkrechter Schnitt, Abb. 2 eine Ansicht des Widerstands von hinten.Fig. I is a vertical section and Fig. 2 is a view of the resistor from behind.
An einer Platte io ist ein Rahmen 9 befestigt, der in Löchern seiner Schenkel eine Nabe 14 trägt. In der Nabe ist eine Hohlwelle 15, in dieser eine Vollwelle 41 untergebracht. Auf der Nabe 14 sitzt die Scheibe i9, die in einem Kranz 21 aus Isolierstoff die Schraubenfeder 22 trägt. Zwischen den Enden der Schraubenfeder befindet sich ein Isolierstück 23, etwa von Hufeisenform, um dessen Vorsprünge die Enden des Drahts 22 gewickelt sind.A frame 9 is attached to a plate 10 and carries a hub 14 in holes in its legs. A hollow shaft 1 5 is accommodated in the hub and a solid shaft 41 is housed in this. The disk i9, which carries the helical spring 22 in a ring 21 made of insulating material, is seated on the hub 14. Between the ends of the helical spring there is an insulating piece 23, approximately of horseshoe shape, around the projections of which the ends of the wire 22 are wound.
Über der Scheibe ig tritt durch den Rahmeng ein Gewindestift 28 mit einer Mutter am Außenende, der im Rahmen eine Isolierbuchse 29, außerhalb des Rahmens eine Isolierbuchse 30 trägt. Auf der Buchse 29 ist .eine Blattfeder 32 befestigt, die sich gegen den Draht 22 anlegt, derart, daß sie zu seinem Umfang eine Tangente bildet. Eine Klemmschraube 34 an der Feder dient zur Stromzuleitung.A threaded pin 28 with a nut at the outer end, which carries an insulating bushing 29 in the frame and an insulating bushing 30 outside the frame, passes through the frame g above the disk 1. A leaf spring 32 is attached to the socket 29 and rests against the wire 22 in such a way that it forms a tangent to its circumference. A clamping screw 34 on the spring is used to supply power.
Auf der Vollwelle 41 ist außerhalb des Rahmens 9 auf einer Nabe 39 eine Scheibe 38 angebracht, die einen Nonius- oder Hilfswiderstand trägt. Dieser arbeitet mit einer zweiten, auf der Isolierbuchse 30 sitzenden Blattfeder 3 i zusammen.On the solid shaft 41 outside of the frame 9 on a hub 39 a disk 38 is attached, which carries a vernier or auxiliary resistor. This works with a second leaf spring 3 i seated on the insulating bushing 30.
Die Hohlwelle 15, die mit der Nabe 14 der Scheibe i9 fest verbunden ist, trägt außen vor der Wand io ein Handrad 17 mit Zeiger 18, die Vollwelle 41, auf der die Nabe 39 des Hilfswiderstands befestigt ist, geht durch das Handrad 17 und trägt vor ihm einen Drehknopf 43.The hollow shaft 15, which is firmly connected to the hub 14 of the disk i9, carries a handwheel 17 with pointer 18 on the outside in front of the wall io, the solid shaft 41, on which the hub 39 of the auxiliary resistor is attached, goes through the handwheel 17 and carries in front of him a knob 43.
Die Kontaktfedern 31 und 32 sind verhältnismäßig lang und liegen in der Ebene der zugehörigen Scheiben i9 und 38.The contact springs 31 and 32 are relatively long and lie in the plane of the associated disks 19 and 38.
Claims (2)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US561136A US1678892A (en) | 1922-05-15 | 1922-05-15 | Resistance-control device |
Publications (1)
Publication Number | Publication Date |
---|---|
DE473792C true DE473792C (en) | 1929-04-15 |
Family
ID=24240774
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEW63842D Expired DE473792C (en) | 1922-05-15 | 1923-05-09 | Variable resistor with a wire coil spring placed around a rotatable disc |
Country Status (3)
Country | Link |
---|---|
US (1) | US1678892A (en) |
DE (1) | DE473792C (en) |
FR (1) | FR565004A (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2866052A (en) * | 1955-11-10 | 1958-12-23 | Bourns Lab Inc | Electric digital readout device |
GB1060617A (en) * | 1962-11-19 | 1967-03-08 | Short Brotiiers & Harland Ltd | Improvements in variable electrical resistance devices |
US3254165A (en) * | 1963-11-19 | 1966-05-31 | Globe Union Inc | Rotary switch actuator for actuating multiple rotor sections and including secondary elongated rod actuator |
-
1922
- 1922-05-15 US US561136A patent/US1678892A/en not_active Expired - Lifetime
-
1923
- 1923-04-11 FR FR565004D patent/FR565004A/en not_active Expired
- 1923-05-09 DE DEW63842D patent/DE473792C/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
US1678892A (en) | 1928-07-31 |
FR565004A (en) | 1924-01-17 |
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