KR100364974B1 - A two-seater bicycle comblned with a single-seater bicycle - Google Patents

Abstract

The present invention relates to a two-seater bicycle that combines a single-seat bicycle, so that the rear wheel connecting body of the two-seat bicycle can be detached and assembled on the single-seat bicycle. Front and rear driving handles, in addition to allowing the connecting body of the rear wheel to freely move up, down and left and right when connecting to the stone of the rotary tube installed as a bearing on the upper support pipe of the rear wheel of the single-seat bicycle. There is a feature in such a rotation that can be made. Insert the fastening pipe fixing the rear driving handle (19a) into the support pipe of the upper part of the prop installed by connecting the gear shaft of the single-seater bicycle with the support frame on both sides, and insert the long screw rod with the handle (25) into the fastening pipe. The screw is fixed at the bottom to allow the rear steering wheel to be attached and detached by the rotation of the steering wheel, and the assembled rear driving steering wheel rotates the driving handle of the front passenger left and right when used as a two-seater bicycle. When driving to the right, the driver's steering wheel of the rear rider is also automatically rotated to the left and right at the same time so that the body of the rear rider can move the weight in the same direction as the body of the front rider, and the driving handle of the front rider can be driven Safe and smooth two-seater bike because it can make the driving less effortless and prevents the weight of front and rear riders from rising opposite to each other. It is an invention that allows driving.

Description

Two-seater bicycle combined with a single-seater {A two-seater bicycle comblned with a single-seater bicycle}

The present invention is a two-seater bicycle which is used as a two-seater bicycle by disassembling and dismounting the rear wheel body of a two-seater bicycle and connecting and assembling the rear wheel body. When the front and rear wheels proceed left or right by turning left and right, the rear rider's driving handle is also automatically rotated left and right so that the rear rider's body moves in the same direction as the front rider's body. By driving the steering wheel in the direction, the driving force of the front rider less driving force, and the weight of the front and rear rider does not lean in the opposite direction, so it is possible to drive safely and smoothly and smoothly accelerate the two-seater bike driving. It is about the two-seater bicycle which used the single-seater bicycle for the purpose.

In general, a two-seater bicycle has three driving wheels attached to it. It is connected to the connecting body installed between the front and rear wheels of a single-seater bicycle by installing a long connecting body and a connecting plate inclined upward in the center of the rear wheel. It is connected to the connecting piece of the upper part of the supporting rod fixed to stand up and up, down, left and right, and it is disassembled and detached from the connecting piece. When using a two-seater bicycle as a single-seater bicycle, the connecting piece and the connecting tube of the connecting body The two-seater bicycle, which is a single-seater bicycle intended for use with a single-seater bicycle, was released by the inventor under the notice number 20-1998-125202 (August 17, 1998). It is a structure in which the rear rider's driving handle (handle) is attached to the upper connection plate of the connecting body, and only the fixed handle can hold the driving rider. In other words, it is only a function that can be grasped for the safety of the rider when riding the bicycle, and it is not helpful as a driving handle for the driving of the front rider. In addition to driving backwards, there is an unsafe problem in the use of a two-seater bicycle because there are cases that cause anxiety for the safety of the front rider and cause an accident during high-speed driving.

The present invention has been improved in order to solve such a problem in the prior art, especially when driving with a two-seater bicycle, turning the front driving handles left and right according to the direction of the front occupant, turning left and right and driving the driver of the rear occupant as well It is automatically rotated left and right along the rotational direction of the steering wheel, so that the weight of the rear rider can be carried in the same direction as the weight of the front rider, so it can be used for safe driving and can be lightly driven. The rear aft wheel was able to safely drive high and low convex roads and curve roads by smoothly moving up and down by left and right flows by the bearing rotary cylinder at the end of the connecting body.

In addition, the present invention is easy to disassemble and separate the rear wheel and the rear driving handle when used as a single-seat bicycle, so that anyone can easily use the operation will be described in detail according to the accompanying drawings.

1 is an overall perspective view showing a structure of the present invention assembled by using a two-seater bicycle

Figure 2 is a perspective view showing a connection structure of the branch type brace and the support frame in the present invention

Figure 3 is a side view cut in the driving handle mounting portion when using a two-seat bicycle in the present invention

Figure 4 is an enlarged cross-sectional view of the driving handle mounting portion in the present invention

FIG. 5 is an enlarged cross-sectional view as seen from line A-A of FIG.

Figure 6 is an enlarged longitudinal sectional view of the driving handle fixing tube in the present invention

7 is a side view of a single seat bicycle in the present invention;

Figure 8 is a side view of separating the driving wheel body and the driving handle when using a single-seater bicycle in the present invention

Explanation of symbols for important parts of the drawings

A: Single Seater Bike B: Two Seater Bike

1,1 ′: brace 2: support tube

3,3 ′: Bracing frame 4: Threaded section

5: bearing case 6,6 ′: bearing

7: rotating tube 8: fastener

10 ': rear wheel 10a: rear wheel

12: support tube 15a: connecting body

17: gear shaft 19: front drive handle

19a: rear driving handle 21: fastening pipe

21 ': Inclined end 22: Long screw rod

23: airflow 23 ': inclined cross section

25: handle 32: bearing rotating cylinder

33,33 ′: Stone 34: Shaft Screw

35: nuts

In the present invention, the front and rear wheels 10 and 10 ′ of the single-seater bicycle A are supported by the lower support pipe 12 of the front saddle 11 and the upper branch pipes 13 of both frames 14 of the front wheel 10. Between the bicycle body 15 and the upper part of the support tube 12 of the front saddle 11 and the middle of the bicycle body 15. Connecting frame 18, 18 'is connected to both sides between the lower portion of the bicycle body 15 and the upper portion of the support tube 12, respectively, and the front driving handle 19 is installed on the branch pipe 13. In a single-seater bicycle (A), the brace (1) (1 ') is fixed to the support pipe (2) on both sides of the rear gear (10') center gear shaft (17) of the single-seater bicycle (A). And fixed to the brace (1) (1 ') to the two support frame (3) (3') to the both sides of the support tube 12, and firmly set up to combine the rear driving handle (19a) detachable.

In addition, the upper and lower outer surfaces of the support tube (2) are formed with a screw portion (4) and a bearing case (5), respectively, and install and install the rotary tube (7) into which the upper and lower bearings (6) and 6 'are inserted. ) The fastener 8 screwed on the upper part is fastened to the screw part 4 by double, so that the rotary tube 7 can be easily left outside the support tube 2 by the bearings 6 and 6 '. , The right side can be rotated and the connecting tube 21 having the rear driving handle 19a installed on the upper portion of the supporting tube 2 is inserted into the supporting tube 2, and the lower portion of the connecting tube 21 is inclined. The draft body 23 formed with the inclined end 21 'corresponding to the inclined end 21' at the lower end of the long screw rod 22 cut into the end 21 'and inserted into the center of the fastening tube 21 from the outside is formed. Rotating the handle 25 on the upper end of the long screw rod 22 by screwing and connecting the inclined cross-section (23 ') and the inclined cross-section (21') of the lower end of the fastening tube 21, the inclined cross section (23 ′) Slightly deviating from the division (21 ′), so that the support body (2) is in close contact with the inner wall of the support pipe (2) is configured to play a role, so that the fastening pipe (21) fixed to the bottom of the rear driving handle (19a) is a support pipe ( 2) Integral with the inner wall to prevent movement.

In addition, the draining body 23 is released by the reverse rotation of the handle 25, the rear driving handle (19a) is configured to be easily removed from the support pipe (2) by pulling up.

In addition, the rear wheel 10a used as a two-seater bicycle (B) has a frame (both sides) between the support shaft 28 of the upper rear saddle 27 of the pedal shaft 26 and the gear shaft 29 of the rear wheel 10a. 30) (30 ') are connected to each other, and the connecting body 15a is installed at the upper part of the support tube 28 of the saddle for a long time, and the bearing rotating cylinder 32 is connected to the end of the connecting body 15a which is reinforced by the pedestal 31. The bearing rotary tube 32 is inserted into the protrusion 33 and 33 'which is fixed and welded to the rotary tube 7 on the rear support tube 2 of the single-seater bicycle A, and the shaft screw 34 and Detachable fastening by the nut 35 is configured to be coupled.

The present invention constituted in this way is the tip of the connecting body 15a of the two-seater bicycle B between the stone pieces 33, 33 'fixed to the rotary tube 7 of the rear support tube 2 of the single-seater bicycle A. Insert the bearing rotating cylinder (32) fixed to the shaft screw 34 and the nut (35) to be combined and combined, so can be used as a two-seater bicycle in the same combination as in Figure 1 and used as a single-seater bicycle (A) The shaft screw 34 and the nut 35 of the bearing rotary cylinder 32 at the tip of the connecting body 15a of the two-seater bicycle B, which are connected to the protrusion pieces 33 and 33 'of the rotary tube 7, are assembled. As the disassembly of the desorption can be easily used as a single-seater because it is easily separated as shown in Figs.

In addition, the present invention is a rear driving handle (19a) of the two-seater bicycle (B) above the brace (1) (1 ') on both sides on the rear wheel (10') screw shaft 17 of the single-seater bicycle (A) Not only the fastening tube 21 is fixed and inserted into the supporting tube 2, but also the fastening tube 21 fixing the rear driving handle 19a is inserted into the supporting tube 2 and exposed to the outside. The inclined end surface 21 'and the inclined end surface of the inlet body 23 of the inlet body 23 fastened to the lower end of the long screw rod 22 by rotating the handle 25 left and right from the outside. (23 ') is configured to be in contact with and detached when the contact is in contact with the backing pipe (2) the inner wall of the body (23) is in close contact with the drainage role is fixed to the drain driving role 19a City is a single-seater bicycle (A), because the fastening state of the drainage body 23 is released and separated, so that the fastening pipe 21 is pulled up to separate the rear driving handle 19a. It is convenient to use.

In addition, the present invention, when shown in Figures 1 and 2, when used as a two-seater bicycle (B) coupled to the coupling pipe 21 of the rear driving handle (19a) is a rear wheel (10 ') of the single-seater bicycle (A) gear It is inserted into the supporting tube (2) fixedly fixed to the support (1) (1 ') that is fixedly connected to the shaft (17) in a configuration that is tightly fixed to the drain body (23) of the lower end of the long screw rod (22) When the front rider of the single-seater bicycle (A) and the rear rider of the two-seater bicycle (B) ride simultaneously, the front rider's front driving handle (19) Since the rear steering wheel 19a is automatically rotated in the same direction, the weight of both the front rider and the rear rider is loaded in the same direction and is moved in the same direction, so that both the front rider and the rear rider can drive safely. There is.

That is, when the rear rider's career direction is turned left or right by turning the front driving handle 19 to the left or right, the driving handle 19a of the rear rider is also automatically moved along the rotational direction of the front driving handle 19 to the left and right. Since the weight of the rear rider is rotated to move in the same direction as the weight of the front rider, driving when used as a two-seater bicycle is smooth, safe and light.

In addition, the rear driving handle (19a) of the two-seater bicycle (B) is exposed to the outside to rotate the handle 25 to the left or right to support the drainage body 23 of the lower end of the long screw rod 22 and the inner wall (2) It is easy to use as a single-seat or two-seater bicycle, and the rear-driving handle (19a) is easy to use. 1 ') and the support frame (3) (3') is firmly connected and secured to the interior of the support pipe (2) attached to the back of the steering wheel (19a) is installed in a configuration that is robust and safe driving There are also possible benefits.

Claims (1)

The rear wheel (10 ') of the single-seater bicycle (A') between the stone pieces (33) (33 ') protruding from the rotary tube (7) of the upper support pipe (2) of the rear seat (B) of the rear wheel (10a) In the two-seater bicycle which is inserted into the bearing rotary cylinder 32 fixed to the end of the connecting body 15a and fastened to the shaft screw 34 and the nut 35, the rear wheel of the single-seater bicycle A ( 10 ') Set up the braces (1) (1') on both sides of the center gear shaft (17) and fix them to the support pipe (2), and support the support frame (3) (3 ') under the support pipe (2) and the support pipe. (12) Fix the connection between the upper part, and form the screw part (4) and the bearing case (5) on the upper and lower outer surfaces of the support tube (2) and insert the upper and lower bearings (6) (6 ') into the rotary tube (7). Insert and install the fastening pipe 21 with the rear driving handle 19a into the fastening pipe 21 into the supporting pipe 2 into the supporting pipe 2, which is inserted and installed on the outer surface of the supporting pipe 2, and fastened by the fastener 8 Insert the four poles (22) and screw the mating body (23) at the end. The inclined end surface 23 'is aligned with the inclined end 21' at the bottom of the fastening pipe 21, and the handle 25 is installed outside the upper end of the long screw rod 22 to rotate the long screw rod 22 from the outside. A two-seater bike that combines a two-seater bike that can be attached and detached with a driving handle (19a).