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
  • B62M3/00—Construction of cranks operated by hand or foot
  • B62M3/02—Construction of cranks operated by hand or foot of adjustable length
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
  • B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
  • B62K13/00—Cycles convertible to, or transformable into, other types of cycles or land vehicle
• • 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
  • B62M3/00—Construction of cranks operated by hand or foot

Definitions

• crank arm of the bicycle pedal when the crank arm of the bicycle pedal is tripled, and when the crank arm is lengthened and pedaled, the longer the length of the lever, the lighter the principle of the lighter lever, the bicycle is lightly pedaled, and the speed can be used.
• Triple crank arm, short connection, pedaling the bicycle rotates heavily, consumes a lot of energy of the body, for fitness use, adjust the S angle in the 360-degree direction, can be used all the time There is.
• the pedal ring to explain the meaning of the word
• crank arm of a conventional bicycle means that almost everyone uses 175 millimeters. In the present invention, about 250 millimeters are used, but the turning radius is equal to 175 millimeters.
• the pedals of the bike are made of triple-armed crank arms that can be used for fitness by making the bike crank arms triple-strengthened and long for increased speeds, and for shorter connections. There is not.
• crank arm of an existing bicycle is too short in length, with more leverage Because of the fact that a person can not use the pedal, the radius of rotation of the foot when pedaling is defined by everyone in a similar size, and the longer the crank arm, the more uncomfortable when pedaling. Missing points,
• crank arm that can be used with long, short and long connections.
• Brace 13 Brace 13.14.19.20.21 : Brace passage 5 : Brace handle o 16 : Brace handle hole 17 : connecting rod 18 : connecting rod pin groove
• A-A Rear view of the first tank
• 1 is a conventional bicycle crank arm.
• ⁇ B> is a plan view of a crank arm of a triple connection structure of the present invention, wherein the first crank arm (1), the second crank arm (2), and the third crank arm (3) are tripled; It consists of a center point connector (100), which connects a crank arm coupled with a pedal (4) to a sprocket of an existing bicycle, which is the same as the crank arm (1) of an existing bicycle.
• the claw handle (15) can be moved along the passage If you dig up the claw, hold the claw handle 15 on the claw handle lifejacket 16 and secure it so that it does not buckle,
• the brace 12 does not fall out, and the brace 12 can be moved back and forth,
• the connecting rod 17 of the chamfer 12 crank arm 2 When inserting the connecting rod 17 of the chamfer 12 crank arm 2 into the groove 10, push the latch handle 15 toward the spring 11 so as not to be caught in the groove hole 10.
• the third crank arm (3) requires an angle of about 45 degrees to make the length shorter. Therefore, to find the angle, the latch passages (20) and (21) are installed with X characters.
• the clamp 12 rotates one passage by one passage. If you make it 45 degrees 180 degrees, you can adjust the angle,
• the third crank arm (3) is rotated 45 degrees to match the length and angle, lightly pedaling, the angle to reduce the speed ,
• FIG. 1 the basic view of FIG. 1, the third crank arm (3) in which the first crank arm (1), the second crank arm (2) and the third crank arm (3) are connected in a straight line.
• the catch passage 12 enters the latch passage 20 of the third tank arm 3 and adjusts at an angle of about 135 degrees. So, the pedaling line is adjusted to 175mm so that it is longer than the existing crank arm.
• the length of the crank arm refers to the length from the center of the pedal fixture 34 to the center of the center point connector 100, the third crank arm (175 mm), which is the length of the crank arm of the existing bicycle. 3), the length is shortened, and the angle is adjusted inward, and the length is adjusted to 175 mm, and the length is adjusted.
• the degree of change of the length of the present invention and the existing bicycle crank arm is compared and analyzed.
• ⁇ A> is the crank arm of the existing bicycle, the rotation line is B line,
• ⁇ C> is longer than the existing bicycle, the longer the length of the crank arm, the length of the A line and B line, the lever principle is applied, and rotates lightly,
• ⁇ D> is a method of folding the crank arm, connecting it shortly, causing the crank arm to rotate heavily, and when using it for fitness, by connecting it, the shorter length, the length of the B line and the K line, When applied, the pedal of the bicycle rotates heavily and can be used as a fitness bike,
• crank arm of the present invention For all bicycles, only the crank arm of the present invention can be changed and used. However, in order to realize the true value of the present invention, the pedal height of the existing bicycle, the distance from the ground, and a little more than 30 mm, To be more certain, you can feel the difference from existing bicycles, and you can change all the bicycles and increase productivity industrially.

Landscapes

• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Chemical & Material Sciences (AREA)
• Combustion & Propulsion (AREA)
• Transportation (AREA)
• Steering Devices For Bicycles And Motorcycles (AREA)
• Transmission Devices (AREA)

Priority Applications (2)

Applications Claiming Priority (3)

Publications (1)

Family

ID=59048467

Family Applications (1)

Country Status (3)

Cited By (1)

Citations (5)

• 2016
  • 2016-03-22 KR KR1020160033834A patent/KR20170054202A/ko active Search and Examination
• 2017
  • 2017-02-10 JP JP2018600011U patent/JP3220627U/ja not_active Expired - Fee Related
  • 2017-02-10 WO PCT/KR2017/001459 patent/WO2017164512A1/ko active Application Filing

Patent Citations (5)

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