DE825063C - Chain catcher for bicycles with derailleur - Google Patents

Chain catcher for bicycles with derailleur

Info

Publication number
DE825063C
DE825063C DEL5744A DEL0005744A DE825063C DE 825063 C DE825063 C DE 825063C DE L5744 A DEL5744 A DE L5744A DE L0005744 A DEL0005744 A DE L0005744A DE 825063 C DE825063 C DE 825063C
Authority
DE
Germany
Prior art keywords
chain
bicycles
derailleur
chain catcher
frame
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
DEL5744A
Other languages
German (de)
Inventor
Hans Ludwig
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.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to DEL5744A priority Critical patent/DE825063C/en
Application granted granted Critical
Publication of DE825063C publication Critical patent/DE825063C/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
    • B62M9/04—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio
    • B62M9/06—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio using a single chain, belt, or the like
    • B62M9/10—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio using a single chain, belt, or the like involving different-sized wheels, e.g. rear sprocket chain wheels selectively engaged by the chain, belt, or the like

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Gears, Cams (AREA)

Description

Es ist bekannt, bei Fahrrädern mit Kettenschaltung die beim Bremsen im oberen Kettentrum stark durchhängende Kette durch Kettenleitbleche, die am Fahrradrahmen befestigt sind, am seitlichen Abgleiten zu verhindern.It is known that when braking bicycles with derailleur gears In the upper chain strand, the chain is heavily slack due to chain guide plates attached to the bike frame are attached to prevent them from sliding sideways.

Die bis jetzt bekannten Kettenleitbleche sind sehr unvollkommen und verhindern nur zum Teil ein seitliches Abrutschen der Kette und fast nie ein tiefes Durchhängen derselben, da der Abstand der Kette von den Kettenleitblechen immer ein anderer ist, je nach Rahmenbau und Größe der Kettenräder. Dieses Durchhängen der Kette ist für den Radfahrer sehr gefährlich, denn die Kette kann sich im Hinterrad verfangen und den Radfahrer zum Sturze bringen. Auch wird das Fahrrad beschädigt, denn die Kette fällt beim Bremsen jedesmal auf den Fahrradrahmen, den sie dann zerkratzt und beschmutzt.The chain guide plates known up to now are very imperfect and only partially prevent the chain from slipping sideways and almost never a deep one Sagging of the same, because the distance between the chain and the chain guide plates always a different one, depending on the frame construction and the size of the sprockets. This sagging the chain is very dangerous for the cyclist because the chain can get in the rear wheel get caught and cause the cyclist to fall. The bike is also damaged, because every time the chain brakes, it falls onto the bicycle frame, which it then scratches and dirty.

Die Erfindung beseitigt diese Mängel durch eine höhenverstellbare Ausbildung der Auflage zum Auffangen des Kettendurchhanges in der Vorrichtung, die es ermöglicht, die Vorrichtung für jedes Fahrrad passend einzustellen.The invention overcomes these deficiencies by means of a height-adjustable Formation of the support to absorb the chain slack in the device that it enables the device to be adjusted appropriately for each bicycle.

Die Erfindung ist in der Zeichnung in einem Ausführungsbeispiel dargestellt.The invention is shown in the drawing in an exemplary embodiment.

Fig. i zeigt die Kettenauffangvorrichtung in der Seitenansicht, wie sie am Fahrradrahmen angebracht ist; Fig. 2 zeigt die Vorrichtung allein in der Längenansicht und Fig.3 in Seitenansicht mit einem verstellbaren langen Blech, das die Kette auffängt.Fig. I shows the chain catcher in a side view, such as it is attached to the bicycle frame; Fig. 2 shows the device alone in the Length view and Fig. 3 in side view with an adjustable long plate that the chain catches.

Die Kettenauffangvorrichtung besteht aus einem Führungsrahmen i, der an seinem unteren Ende zweckmäßig am Fahrradrahmen befestigt ist. Der Rahmen i umgibt das obere Trum der Kette 2. Seine beiden senkrechten Schenkel sind mit Längsschlitzen 3 versehen, in die als Steg ein Bolzen 4 höhenverstellbar eingesetzt ist. Über den Bolzen 4 ist eine Distanzhülse 5 geschoben, die beim Bremsen die lose hängende Kette 2 auffängt und so die eingangs geschilderten Mängel beseitigt. Der Bolzen mit der Hülse 5 als Kettenauflage wird durch die ?Mutter 6 im erforderlichen Sitz in den Schlitzen 3 gehalten. Statt der Hülse 5 kann auch ein breites Auffangblech 7, Fig. 3, vorgesehen werden.The chain catcher consists of a guide frame i, the is expediently attached to the bicycle frame at its lower end. The frame i surrounds the upper run of the chain 2. Its two vertical legs have longitudinal slots 3 provided, in which a bolt 4 is used as a web adjustable in height. On the Bolt 4 is pushed a spacer sleeve 5, which when braking, the loosely hanging chain 2 and thus eliminates the deficiencies described at the beginning. The bolt with the Sleeve 5 as a chain support is secured in the required seat by the nut 6 in the Slots 3 held. Instead of the sleeve 5, a wide collecting plate 7, Fig. 3, can be provided.

Claims (1)

PATENTANSPRUCH: Kettenauffangvorrichtung für das bei Rücktrittbremsung durchhängende obere Kettentrum bei Fahrrädern mit Kettenschaltung, dadurch gekennzeichnet, daß die Auflage (5 bzw. 7) zum Auffangen des Kettendurchhanges in der Vorrichtung höhenverstellbar ist. PATENT CLAIM: Chain catching device for the upper chain section which sags during coaster braking on bicycles with chain gears, characterized in that the support (5 or 7) in the device for catching the chain slack is adjustable in height.
DEL5744A 1950-09-30 1950-09-30 Chain catcher for bicycles with derailleur Expired DE825063C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEL5744A DE825063C (en) 1950-09-30 1950-09-30 Chain catcher for bicycles with derailleur

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEL5744A DE825063C (en) 1950-09-30 1950-09-30 Chain catcher for bicycles with derailleur

Publications (1)

Publication Number Publication Date
DE825063C true DE825063C (en) 1951-12-17

Family

ID=7256898

Family Applications (1)

Application Number Title Priority Date Filing Date
DEL5744A Expired DE825063C (en) 1950-09-30 1950-09-30 Chain catcher for bicycles with derailleur

Country Status (1)

Country Link
DE (1) DE825063C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5176582A (en) * 1991-06-13 1993-01-05 The Chamberlain Group, Inc. Chain guide for overhead door opener

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5176582A (en) * 1991-06-13 1993-01-05 The Chamberlain Group, Inc. Chain guide for overhead door opener

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