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DE1611061U - BICYCLE CRANKS. - Google Patents

BICYCLE CRANKS.

Info

Publication number
DE1611061U
DE1611061U DESCH1303U DESC001303U DE1611061U DE 1611061 U DE1611061 U DE 1611061U DE SCH1303 U DESCH1303 U DE SCH1303U DE SC001303 U DESC001303 U DE SC001303U DE 1611061 U DE1611061 U DE 1611061U
Authority
DE
Germany
Prior art keywords
crank
bottom bracket
pedal
bicycle
bicycle cranks
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
DESCH1303U
Other languages
German (de)
Inventor
Friedrich Schulze
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 DESCH1303U priority Critical patent/DE1611061U/en
Publication of DE1611061U publication Critical patent/DE1611061U/en
Expired legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G06COMPUTING OR CALCULATING; COUNTING
    • G06QINFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q30/00Commerce
    • G06Q30/02Marketing; Price estimation or determination; Fundraising
    • GPHYSICS
    • G06COMPUTING OR CALCULATING; COUNTING
    • G06QINFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q30/00Commerce
    • G06Q30/02Marketing; Price estimation or determination; Fundraising
    • G06Q30/0241Advertisements

Landscapes

  • Business, Economics & Management (AREA)
  • Engineering & Computer Science (AREA)
  • Accounting & Taxation (AREA)
  • Development Economics (AREA)
  • Strategic Management (AREA)
  • Finance (AREA)
  • Game Theory and Decision Science (AREA)
  • Entrepreneurship & Innovation (AREA)
  • Economics (AREA)
  • Marketing (AREA)
  • Physics & Mathematics (AREA)
  • General Business, Economics & Management (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Steering Devices For Bicycles And Motorcycles (AREA)

Description

t Beschreibung der kraftsparenden Fahrradtretkurbel . Die von mir zum Gebrauchsmuster angemeldete Fahrradtretkurbel soll den Zweck haben ein leichteres Treten beim Radjahren zu erzielen. Dieses geschieht dadurch, daß die Tretkurbel 2 in ihrem Gelenk mit dem Tretlagerarm 1 befestigt wird. Der Drehpunkt am Tretlagerarm ist verstellbar und gegenüber CD CD der bisher bekannten Fahrradtretkurbel vorverlagert. Am oberen Ende des Tretlagerarmes wird ein der Länge nach verstell- barer Schraubenbolzeh 3 befestigt. Dieser wird durch den Früh- CD 'rungsschlitz der Tretkurbel geführt und dient somit als Führung und Anschlag für die Tretkurbel. Zwangsläufig muß nun, wenn man die Pedale an die Tretkurbel befestigt und auf diese tritt, eine Verlängerung der Tretkurbel soweit eintreten, wie die Länge des Führungsbolzen es zuläßt. Weil aber nur eine k längere Kurbel beim vorwärtstreten benötigt wird, ist eine Zugfeder 4 angebracht, welche den Zweck hat, sobald der Druck nachläßt diese, die Tretkurbel, in ihre frühere Lage zurückzubringen. Art, Stärke und Anbringungsstelle der Feder kann verschieden sein, muß aber so berechnet sein, daß ein angenehmes treten ermöglicht wird. t Description of the energy-saving bicycle crank . The bicycle crank, which I have registered for a utility model, is intended to make pedaling easier when turning the bike. This is done in that the pedal crank 2 is attached to the pedal arm 1 in its joint. The pivot point on the bottom bracket arm is adjustable and opposite CD CD the previously known bicycle crank moved forward. At the upper end of the bottom bracket arm, a lengthwise adjustable ble screw bolt 3 attached. This is due to the early CD 'Guide slot of the crank and thus serves as a guide and stop for the crank. Inevitably, when the pedals are attached to the pedal crank and stepped on, the pedal crank must be lengthened as far as the length of the guide bolt allows. But because only a longer crank is required when pedaling forward, a tension spring 4 is attached, which has the purpose of returning the pedal crank to its previous position as soon as the pressure subsides. The type, strength and location of the spring can be different, but must be calculated in such a way that comfortable pedaling is possible.

Einige Vorteile können noch erzielt werden, wenn Tretlagerarm und Tretkurbel vom Tretlager aus nach unten und seitlich verlängert werden.Some advantages can still be achieved if the bottom bracket arm and The crank can be extended downwards and to the side from the bottom bracket.

Anmelder stelle Schutzansprüche : 1. Auf eine Pahrradtretkurbel, dadurch gekennzeichnet, daß dieselbe sich (sofort) bei Bedarf von Anfang an verlängert und wenn der Druck nachläßt wieder in die-frühere Lage zurückgeht, 2. Auf den Tretlagerarm und die abweichende Lagerung der Iretkurbel von der bisher bekannten.Applicant make protection claims: 1. On a pedal crank, thereby marked that the same (immediately) extended from the beginning if necessary and when the pressure decreases, it goes back to the previous position, 2. On the bottom bracket arm and the different storage of the Iret crank from the previously known.

Claims (1)

Ich bitte um eine Aussetzung der Eintragung und Bekanntmachung bis auf Wiederruf.I ask for a suspension of the registration and announcement until on recall.
DESCH1303U 1950-04-05 1950-04-05 BICYCLE CRANKS. Expired DE1611061U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DESCH1303U DE1611061U (en) 1950-04-05 1950-04-05 BICYCLE CRANKS.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DESCH1303U DE1611061U (en) 1950-04-05 1950-04-05 BICYCLE CRANKS.

Publications (1)

Publication Number Publication Date
DE1611061U true DE1611061U (en) 1950-08-03

Family

ID=29759285

Family Applications (1)

Application Number Title Priority Date Filing Date
DESCH1303U Expired DE1611061U (en) 1950-04-05 1950-04-05 BICYCLE CRANKS.

Country Status (1)

Country Link
DE (1) DE1611061U (en)

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