DE347797C - Exhaust arrangement for auxiliary bicycle motors - Google Patents

Exhaust arrangement for auxiliary bicycle motors

Info

Publication number
DE347797C
DE347797C DENDAT347797D DE347797DD DE347797C DE 347797 C DE347797 C DE 347797C DE NDAT347797 D DENDAT347797 D DE NDAT347797D DE 347797D D DE347797D D DE 347797DD DE 347797 C DE347797 C DE 347797C
Authority
DE
Germany
Prior art keywords
muffler
exhaust arrangement
auxiliary bicycle
exhaust pipe
exhaust
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
Application number
DENDAT347797D
Other languages
German (de)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Motorenfabrik Oberursel A G
Original Assignee
Motorenfabrik Oberursel A G
Publication date
Application granted granted Critical
Publication of DE347797C publication Critical patent/DE347797C/en
Expired 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
    • B62M9/00—Transmissions characterised by use of an endless chain, belt, or the like

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Exhaust Silencers (AREA)

Description

Motorenfabrik Oberursel A.-G. in Oberursel.Motor factory Oberursel A.-G. in Oberursel.

Auspuffanordnung für Fahrradhilfsmotoren. Patentiert im Deutschen Reiche vom 12. April 1921 ab. Exhaust arrangement for bicycle auxiliary motors. Patented in the German Empire on April 12, 1921.

Die Erfindung betrifft die Anordnung einesThe invention relates to the arrangement of a

Auspuffes für Fahrradhilfsmotoren, dieExhausts for bicycle auxiliary engines that

- unterhalb des Fahrradrahmens angeordnet sind.- Are arranged below the bicycle frame.

Gemäß der Erfindung wird der Auspufftopf zwischen den beiden schrägen Rahmenrohren unmittelbar über dem Tretkurbellager angeordnet, wobei die äußere Form des Auspufftopfes dem Verlauf der Rahmenrohre ange-Lo paßt ist.According to the invention, the muffler is located between the two inclined frame tubes placed directly above the crank bearing, the outer shape of the muffler is adapted to the course of the frame tubes.

Gemäß einer besonderen Ausführungsform der Erfindung ist das mit dem Auspufftopf verbundene Auspuffrohr als Teil der die Motorantriebskette umgreifenden Schutzvorrichtung ausgebildet.According to a particular embodiment of the invention, that is with the muffler connected exhaust pipe as part of the protective device encompassing the engine drive chain educated.

Der Erfindungsgegenstand ist auf beiliegender Zeichnung in einem Ausführungsbeispiel veranschaulicht.The subject of the invention is shown in the accompanying drawing in an exemplary embodiment illustrated.

Abb. ι ist eine Seitenansicht der Gesamtanordnung, Fig. Ι is a side view of the overall arrangement,

Abb. 2 ein Schnitt nach I-I der Abb. I,
Abb. 3 ein Schnitt nach H-II der Abb. 1. Gemäß dein Verlauf der Rahmenrohre α des Fahrradgestelles, die an dem Tretkurbellager zusammenlaufen, besitzt der Auspufftopf b die Gestalt eines Dreieckes; er ist unmittelbar oberhalb des Tretkurbellagers zwischen den beiden Rabmenrohren α eingebaut. Die Auspuffgase werden aus dem Motor c durch Leitung ä in den Auspufftopf b übergeführt. An dem unteren Ende des Auspufftopfes und seitlich von demselben ist das nach hinten führende Auspuffrohr e angeschlossen. Dasselbe ist einerseits mit dem Auspufftopf b fest verbunden und bildet anderseits den oberen Teil der Kettenschutzvorrichtung f, welche die Motorantriebskette g übergreift. Der vor dem Auspufftopf b liegende Teil des Kettenschutzes f ist lediglich als Schutzgehäuse h (Abb. 2) von U-förmigem Querschnitt ausgebildet, das um das vordere Kettenrad herumgeführt ist.Fig. 2 a section according to II of Fig. I,
Fig. 3 is a section according to H-II of Fig. 1. According to the course of the frame tubes α of the bicycle frame, which converge at the pedal crank bearing, the muffler b has the shape of a triangle; it is installed directly above the crank bearing between the two rabmen tubes α . The exhaust gases are transferred from the engine c through line ä into the muffler b . The exhaust pipe e leading to the rear is connected to the lower end of the muffler and to the side of the same. The same is firmly connected on the one hand to the muffler b and on the other hand forms the upper part of the chain protection device f, which engages over the motor drive chain g. The part of the chain guard f located in front of the muffler b is only designed as a protective housing h (Fig. 2) with a U-shaped cross-section, which is guided around the front sprocket.

Claims (2)

P ATENT-AN SPRÜCHE:P ATENT-ON SUMMARIES: 1. Auspuffanordnung für Fahrradhilfsmotoren, dadurch gekennzeichnet, daß der Auspufftopf zwischen den beiden schrägen Rahmenrohren in der äußeren Form dem Verlauf derselben sich anpassend, unmittelbar über dem Tretkurbellager angeordnet und .mit dem zugleich als Kettenschutz ausgebildeten Auspuffrohr (e) verbunden ist.1. exhaust assembly for bicycle auxiliary motors, characterized in that the muffler is inclined between the two Frame tubes in the outer shape adapting to the course of the same, directly Arranged above the crank bearing and .with that at the same time as a chain guard formed exhaust pipe (s) is connected. 2. Vorrichtung nach Anspruch i, dadurch gekennzeichnet, daß das seitlich an dem Auspufftopf befestigte Auspuffrohr den oberen Teil des Kettenschutzkastens bildet, dessen vor dem Auspufftopf liegender Teil in der üblichen Weise das Kettenrad übergreift.2. Apparatus according to claim i, characterized characterized in that the exhaust pipe attached to the side of the muffler forms the upper part of the chain guard, the one in front of the muffler Part overlaps the sprocket in the usual way. Hierzu 1 Blatt Zeichnungen.1 sheet of drawings.
DENDAT347797D Exhaust arrangement for auxiliary bicycle motors Expired DE347797C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE347797T

Publications (1)

Publication Number Publication Date
DE347797C true DE347797C (en) 1922-01-28

Family

ID=6256618

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT347797D Expired DE347797C (en) Exhaust arrangement for auxiliary bicycle motors

Country Status (1)

Country Link
DE (1) DE347797C (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE833459C (en) * 1942-07-07 1952-03-10 Fichtel & Sachs Ag Bicycle auxiliary motor.
US2596391A (en) * 1944-05-17 1952-05-13 Farinelli Aldo Auxiliary motor for bicycles
DE952329C (en) * 1953-06-23 1956-11-15 Zuendapp Werke G M B H Zweigwe Bracket for auxiliary motors on bicycles

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE833459C (en) * 1942-07-07 1952-03-10 Fichtel & Sachs Ag Bicycle auxiliary motor.
US2596391A (en) * 1944-05-17 1952-05-13 Farinelli Aldo Auxiliary motor for bicycles
DE952329C (en) * 1953-06-23 1956-11-15 Zuendapp Werke G M B H Zweigwe Bracket for auxiliary motors on bicycles

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