FIELD: machine building.
SUBSTANCE: group of inventions relates to machine building, particularly to frames with variable geometry. Frame with variable geometry includes a seat tube, an upper pipe of a triangle, lower pipes of a triangle, pipes of upper feathers, reinforcement pipes, and a lower pipe. Triangular upper pipe is connected with seat tube and steering tube. Pipes of top feather are connected to the seat tube and lower pipes of triangle. Stiffness reinforcement pipes connect lower and upper feathers. Bottom pipe is made with possibility of dynamic change of length during operation. Bicycle with manual drive includes frame, steering yoke, carry-out with carriage, handles and connecting rods, large drive wheel, seat, seatpost, rear driven wheel of small diameter.
EFFECT: higher efficiency of the process of increasing muscle mass of the user.
6 cl, 12 dwg, 1 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| CHAIN TENSION CONTROLLER FOR TWO-WHEELED BICYCLES WITH MANUAL DRIVE | 2020 |
|
RU2744996C1 |
| FRAME FEATHER CONNECTION DEVICE, HINGE BRACKET ASSEMBLY AND BICYCLE FRAME | 2015 |
|
RU2693393C2 |
| BICYCLE FRAME | 2011 |
|
RU2452649C1 |
| BICYCLE FRAME AND BICYCLE | 2015 |
|
RU2693893C2 |
| BICYCLE FRAME | 2014 |
|
RU2557650C1 |
| EXTRA BIKE SEAT | 2020 |
|
RU2745367C1 |
| BICYCLE FRAME COMPONENT, BICYCLE FRAME AND BICYCLE | 2015 |
|
RU2671461C2 |
| FOLDING BIKE MECHANISM OF BICYCLE (VERSIONS) | 2015 |
|
RU2687534C2 |
| TWO-WHEELED VEHICLE WITH 2×2 WHEEL ARRANGEMENT | 2023 |
|
RU2810226C1 |
| BICYCLE WITH SHOCK-PROOF REAR SUSPENSION | 2008 |
|
RU2396179C1 |
