DE109133C - - Google Patents

Info

Publication number
DE109133C
DE109133C DENDAT109133D DE109133DA DE109133C DE 109133 C DE109133 C DE 109133C DE NDAT109133 D DENDAT109133 D DE NDAT109133D DE 109133D A DE109133D A DE 109133DA DE 109133 C DE109133 C DE 109133C
Authority
DE
Germany
Prior art keywords
lever
pedal
circumference
toothed
spring
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.)
Active
Application number
DENDAT109133D
Other languages
German (de)
Publication of DE109133C publication Critical patent/DE109133C/de
Active legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
    • B62M1/00—Rider propulsion of wheeled vehicles
    • B62M1/24—Rider propulsion of wheeled vehicles with reciprocating levers, e.g. foot levers
    • B62M1/30—Rider propulsion of wheeled vehicles with reciprocating levers, e.g. foot levers characterised by the use of intermediate gears

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Transmission Devices (AREA)

Description

KAISERLICHESIMPERIAL

PATENTAMT.PATENT OFFICE.

Fig. ι beiliegender Zeichnung stellt eine bereits bekannte Antriebvorrichtung mit Trethebeln für Fahrräder dar. Das Neue daran ist die Anordnung des Zahnes c, welcher umlegbar ist und durch eine Feder wieder gehoben und in normaler Stellung gehalten wird, wie Fig. 2 zeigt. Fig. 3 zeigt, wie und zu welchem Zwecke sich der Zahn c umlegt. Nachdem nämlich eine halbe Radumdrehung durch Abwärtsbewegung des Trethebels bewirkt ist, beginnt dieser Trethebel sich sofort wieder zu heben; da jedoch die Zähne noch in einander greifen, ist es nothwendig, dafs der zuletzt eingreifende Zahn c sich umlegt und so die Aufwärtsbewegung des Trethebels gestattet.Fig. Ι the accompanying drawing shows an already known drive device with pedal levers for bicycles. What is new is the arrangement of the tooth c, which can be folded over and is raised again by a spring and held in the normal position, as FIG. 2 shows. Fig. 3 shows how and for what purpose the tooth c folds. Namely, after half a wheel revolution has been effected by downward movement of the pedal lever, this pedal lever immediately begins to rise again; but since the teeth are still interlocking, it is necessary that the last tooth c that engages should fold over and thus allow the upward movement of the pedal.

Die Feder, welche das Heben des Zahnes c The spring that lifts the tooth c

bewirkt, kann entweder an dem Stift, um den .sich c dreht, als spiralgewundene Drahtfeder angebracht sein oder als federnde Schiene auf der zahnlosen Hälfte des Zahkranzstückes b befestigt sein.causes, can either be attached to the pin around which .sich c rotates as a helically wound wire spring or as a resilient rail on the toothless half of the toothed ring piece b .

Claims (1)

Patent-Anspruch:Patent claim: Ein Trethebelantrieb für Fahrräder mit von den Trethebeln bewegten gezahnten Bogenstücken, welche in auf ihrem halben Umfange mit Zähnen versehene Räder eingreifen, dadurch gekennzeichnet, dafs der in der Drehungsrichtung letzte Zahn (c) auf dem Umfange der halb gezahnten Räder (b) umlegbar ist und nach dem Umlegen durch eine Feder wieder aufgerichtet wird, zu dem Zwecke, nach beendetem Niedertreten eines Hebels die Aufwärtsbewegung desselben ohne Behinderung der weiteren Umdrehung der Zahnräder zu ermöglichen. A pedal lever drive for bicycles with toothed arched pieces which are moved by the pedal levers and which engage in wheels provided with teeth on half their circumference, characterized in that the last tooth (c) in the direction of rotation can be folded over on the circumference of the half-toothed wheels (b) and is erected again by a spring after it has been turned, for the purpose of enabling the lever to move upwards after the lever has been stepped down without hindering the further rotation of the gears. Hierzu 1 Blatt Zeichnungen.1 sheet of drawings.
DENDAT109133D Active DE109133C (en)

Publications (1)

Publication Number Publication Date
DE109133C true DE109133C (en)

Family

ID=379055

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT109133D Active DE109133C (en)

Country Status (1)

Country Link
DE (1) DE109133C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4566180A (en) * 1982-09-30 1986-01-28 Industra Products, Inc. Method and apparatus for placing coils and intermediate insulators in cores
US4831715A (en) * 1983-03-07 1989-05-23 Industra Products, Inc. Method and apparatus for positioning intermediate insulators in cores

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4566180A (en) * 1982-09-30 1986-01-28 Industra Products, Inc. Method and apparatus for placing coils and intermediate insulators in cores
US4831715A (en) * 1983-03-07 1989-05-23 Industra Products, Inc. Method and apparatus for positioning intermediate insulators in cores

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