CN2299789Y

CN2299789Y - Recreation and body-building tandem cycle

Info

Publication number: CN2299789Y
Application number: CN 97215918
Authority: CN
Inventors: 解本华
Original assignee: Individual
Current assignee: Individual
Priority date: 1997-05-20
Filing date: 1997-05-20
Publication date: 1998-12-09
Anticipated expiration: 2007-05-20

Abstract

The utility model relates to a recreation and body-building tandem bicycle. The recreation and body-building tandem bicycle is composed of a bicycle frame, a front wheel, a rear wheel, a bicycle handle, etc. The bicycle frame is flatly arranged and connected into an integral body by two triangular frames. A front middle shaft and a rear middle shaft are arranged on the intersecting position on the lower ends of the triangular frames. A front tooth disk and pedals are arranged on the front middle shaft. A large tooth disk and a small tooth disk are fixedly arranged on the rear middle shaft. The large tooth disk and the front tooth disk are linked by a chain. The small tooth disk and a flywheel on a rear wheel shaft are linked by a chain. Due to the fact that twp ends of the rear middle shaft are connected with lifting connecting rods, support beams, a rear vehicle seat, and handrails are arranged on the upper ends of the lifting connecting rods. Tension springs are connected between the lifting connecting rods and a transverse beam of the bicycle frame, and a front vehicle seat is arranged on the intersecting point on a middle oblique beam of the bicycle frame and the transverse beam. The recreation and body-building tandem bicycle has simple structure, easy manufacture, a recreation function, and a body-building function.

Description

Two riding singly pedaled recreation bicycle

The utility model relates to a kind of entertainment body-building equipment, and especially a kind of two riding singly pedaled recreation bicycle.

The bicycle that present people often ride only uses as the general vehicle, lacks a kind of entertaining of entertainment body-building.

The purpose of this utility model is to provide a kind of improved two riding singly to pedal recreation bicycle, and it had both had dense entertainment interest, and the body building function of tempering leg strength is arranged again, was specially adapted to teen-age entertainment body-building activity.

The purpose of this utility model is achieved in that to ride for a kind of pair singly pedals recreation bicycle, it is by vehicle frame, front and back wheel, formations such as handlebar, its vehicle frame is one by two triangular form framework flat raft splicings, axis before and after triangular form framework lower end infall is equipped with, fluted disc and pedal before being fixed with on the preceding axis, be fixed with big small tooth plate on the back axis, large fluted disc and preceding fluted disc are linked by preceding chain, small tooth plate is linked by rear chain with the flywheel that is contained on the rear wheel axletree, the two ends of back axis are connected with the mobile lifting connecting rod of symmetry, the upper end of connecting rod is equipped with horizontal stand and back vehicle seat and handrail, be connected with the gravitational equilibrium extension spring between lifting linking member and the cross member of frame, slow down connecting rod oscilaltion impulse force, on central frame beam cant beam and crossbeam intermediate interdigitated contact, front seat is housed.Ride the front and back vehicle seat respectively for two people when riding, the former can firmly step on pedal, preceding fluted disc begins to rotate, rotate by the big small tooth plate on the axis of preceding chain interlock back, flywheel on the rear chain interlock rear wheel axletree is arranged again, rear wheel is rolled forward, bicycle travels forward, the symmetrical movable rod that is fixed on the axis of back is also done the oscilaltion campaign along with the back axis rotates, be installed in the also oscilaltion of back vehicle seat of small end, the person of riding on the back vehicle seat feels a kind of enjoyment of amusement and the effect that fore rider person reaches body-building along with the ceaselessly down motion to overtake and up of bicycle speed.

The utility model only improves on original bicycle structure a little, and all are simple in structure, makes easily, has amusement and body-building function, is fit to the characteristics of youth activity.

Below in conjunction with drawings and Examples the utility model is further specified.

Fig. 1 is the utility model structural representation.

As shown in Figure 1, a kind of two riding singly pedaled recreation bicycle, it is by vehicle frame (1), front and back wheel (2,3), handlebar formations such as (4), it is characterized in that: vehicle frame (1) is one by two triangular form framework flat raft splicings, axis (5 before and after triangular form framework lower end infall is equipped with, 6), be fixed with preceding fluted disc (7) and pedal (8) on the preceding axis (5), be fixed with big small tooth plate (9 on the back axis (6), 10), large fluted disc (9) is linked by preceding chain (11) with preceding fluted disc (7), small tooth plate (10) is linked by rear chain (12) with the flywheel (13) that is contained on rear wheel (3) axletree, the two ends of back axis (6) are connected with the mobile lifting connecting rod (14) of symmetry, the upper end of lifting linking member (14) is equipped with horizontal stand (15) and back vehicle seat (16) and handrail (17), be connected with gravitational equilibrium extension spring (18) between lifting linking member (14) and vehicle frame (1) crossbeam, in the middle of vehicle frame (1), on cant beam and the crossbeam intermediate interdigitated contact front seat (19) be housed.

Claims

1, a kind of two riding singly pedaled recreation bicycle, it is by vehicle frame (1), front and back wheel (2,3), handlebar formations such as (4), it is characterized in that: vehicle frame (1) is one by two triangular form framework flat raft splicings, axis (5 before and after triangular form framework lower end infall is equipped with, 6), be fixed with preceding fluted disc (7) and pedal (8) on the preceding axis (5), be fixed with big small tooth plate (9 on the back axis (6), 10), large fluted disc (9) is linked by preceding chain (11) with preceding fluted disc (7), small tooth plate (10) is linked by rear chain (12) with the flywheel (13) that is contained on rear wheel (3) axletree, the two ends of back axis (6) are connected with the mobile lifting connecting rod (14) of symmetry, the upper end of lifting linking member (14) is equipped with horizontal stand (15) and back vehicle seat (16) and handrail (17), be connected with gravitational equilibrium extension spring (18) between lifting linking member (14) and vehicle frame (1) crossbeam, in the middle of vehicle frame (1), on cant beam and the crossbeam intermediate interdigitated contact front seat (19) be housed.