KR200408622Y1 - Bicycle trailer connector and multiple purpose tricycle - Google Patents

Abstract

The present invention relates to a bicycle trailer coupling device and a multi-purpose tricycle.

In the conventional tricycle, as a child's means of play and exercise, as children grow, a short period of use and a range of functions as a means of movement have narrowed.

The present invention through the change in the structure or form of the tricycle as described above,

In addition, the purpose of the present invention is to provide a three-wheeled bicycle that can be used for a longer period of time by expanding the use of the two-wheeled bicycle.

Bicycle Trailer Attachment, Utility Tricycle, Trailer, Hand Cart

Description

Bicycle trailer connector and multiple purpose tricycle}

1 is an exploded perspective view of the configuration of a three-wheeled bicycle coupled with a two-wheeled bicycle and a trailer connecting device according to an embodiment of the present invention.

Figure 2 is a structural perspective view showing the trailer connecting device and the connecting portion.

Figure 3 is a detailed view of the main part of the trailer coupling device.

4 is an exploded perspective view showing the construction of a multipurpose tricycle.

5 is a detailed view of a steering wheel portion and a steering fork portion.

Figure 6 is an exploded perspective view of the configuration when loading the cargo trailer function according to an embodiment of the present invention.

7 is an exploded perspective view showing the construction of a hand cart according to an embodiment of the present invention.

Explanation of symbols for main parts of the drawings

11: steering wheel

111: Handle

112: handle binding plate 112a: support shaft binding hole 112b: up and down binding hole 112c: left and right binding ball

113: steering wheel

12: steering fork part

121: Fork

122: Fork binding plate 122a: Support shaft binding hole 122b: Up and down binding hole 122c: Left and right binding hole

123: crank

124: Pedal

125: front wheel

13: main frame

131: support pipe 131a: support shaft hole 132b: up and down through hole 133b: left and right through hole

134: Binder auxiliary plate 134b

14: rear frame

141: main frame connecting bar

142b: Bonding ball

15: saddle 150b: binding ball

16: rear wheel

161: rear wheel shaft

21: saddle support connecting bar 211: insertion tube

22: rear shaft connecting bar 220d: shaft binding hole

23: joint

25: binding plate 250c: binding ball

2-1: saddle support 2-2: rear wheel shaft 2-2 ': shaft expansion means 2-3: frame

a: support shaft a ', b, b', c, c ', d': fastening means

The present invention relates to a bicycle trailer coupling device and a multi-purpose tricycle. The conventional tricycle has a short period of use and a wide range of functions as a means of transportation, which are not used as a child's play and exercise means as children grow.

The present invention is to remove and attach the bike trailer connection device and the steering wheel and the steering fork, which can be removed and attached to increase the effectiveness of the three-wheeled bicycle as described above, and can be removed and attached according to the use change.

Hereinafter, the configuration and operation of the present invention will be described with reference to the accompanying drawings.

First of all, the bike trailer

Insert the saddle support (2-1) of the tow bicycle into the insertion tube (211) to fix the saddle support connecting bar (21) and to extend both sides of the rear wheel shaft (2-2) of the tow bike (2-2 '). As a result, the two rear wheel shaft connecting bars 22 were bound to the binding hole 220d by the binding means d ', thereby increasing the fixing force. [FIG. 3A].

Joint 23 is composed of a combination of two spheres (231,232) of different sizes (Fig. 3). The large sphere 231 is formed in the rotation direction control holes (231a, 231a ') smaller than the diameter of the small sphere 232, when the axis of the tow bicycle is inclined when the driving direction is changed, or in curved roads with inclinations such as unevenness It can be rotated not only in the left and right direction but also in the upward direction while maintaining the connection state, so that stable driving can be performed without deformation of the vehicle body of the trailer connecting device or the two connected bicycles.

The binding plate 25 for binding with the multipurpose bicycle is formed to be the same as the angle of the handle portion binding plate 112 and the fork binding plate 122 bound to the support pipe 131 of the bicycle.

In the versatile tricycle

The steering wheel part 11 and the steering fork part 12 are separated as shown in FIG. 5, and the handle part binding plate 112 and the fork binding plate 122, which are each bonded and fixed by binding means as required, are welded or attached to each part. Form. By varying the size of the two binding plates (112, 122) can be bound to the support tube 131 jointly as shown in FIG. The steering wheel binding plate 112 and the fork binding plate 122 have a pair of support shaft binding holes 112a and 122a and a steering wheel unit penetrating the upper and lower surfaces thereof for connection with the support pipe 131. (11) and the connection of the steering fork part 12 and the two upper and lower binding holes 112b and 122b at the front for attachment to the main frame 13 and the rear frame 14 and the trailer connecting device, respectively. Each of the two left and right binding holes 112c and 122c is formed, and the steering wheel part 11 and the steering fork part 12 are individually or jointly supported according to the change of use of the multipurpose bicycle. 131) can be removed and attached.

When only the steering wheel part 11 is attached to the trailer connecting device and the support pipe 131-[Fig. 1]

When the steering wheel portion 11 and the steering fork portion 12 is attached only to the support pipe 131-[Fig. 4]

When both the steering wheel part 11 and the steering fork part 12 are separated from the support pipe 131 and the support pipe is bound to the trailer connecting device-[FIG. 6]

In this case, the independent coupling plate 102 connects the trailer connecting device and the support pipe 131.

When only the steering fork 12 is bound to the support pipe 131-[Fig. 7]

At this time, the separated part is connected to the main frame 13 and the rear frame through the same size binding holes 132b and 142b of the main frame 13 and the rear frame 14 having the same size as the upper and lower binding holes 112b and 122b. It can be attached to (14).

The support bar 131 and one bar and the main frame 13 which is connected to the rear wheel shaft 161 have a position change of the saddle according to the physical condition of the occupant and

The upper and lower through holes 132b of the pair of main frames 13 for attachment and detachment of the steering wheel part 11 separated from attachment and detachment of the wire mesh 18 and the saddle 15 for the cargo according to the use change and

Two pairs of left and right through holes 133b of the main frame 13 for attachment of the footrest 17 are formed, and the upper and lower through holes 132b and the left and right through holes 133b of the same size are connected to each other. b) is formed at a position not intersecting.

The rear frame 14 is provided with two pairs of binding holes 142b penetrating the front and rear surfaces for attachment of the steering wheel 11 according to the use change (two in the case of using a plate).

The size of each secondary binding hole is the same as the support shaft binding hole 112a of the handle attachment plate 112 and the support shaft binding hole 122a of the fork attachment plate 122 and the support shaft hole 131a of the support pipe 131. and

The left and right binding holes 112c of the handle binding plate 112 and the left and right binding holes 122c of the fork binding plate 122 and the binding holes 250c of the trailer connecting device binding plate 25 are the same.

The upper and lower binding holes 112b of the handle binding plate 112 and the upper and lower binding holes 122b of the fork binding plate 122 and the upper and lower through holes 132b of the main frame 13 and the left and right passages of the main frame 13. The binding hole 134b of the binding hole 133b and the binding auxiliary plate 134, the binding hole 142b of the rear frame 14, and the binding hole 150b of the saddle 15 are the same.

The spacing of each secondary binding hole is smaller than the two intervals of the support shaft binding hole 112a of the handle attachment plate 112 than the fork binding plate 112 and the support shaft binding hole 122a.

Two gaps of the left and right binding holes 112c of the handle binding plate 112 and two gaps of the left and right binding holes 122c of the fork binding plate 122 and two binding holes 250c of the binding plate 25 of the trailer connecting device. Intervals are the same

Two gaps between the upper and lower binding holes 112b of the handle binding plate 112 and the upper and lower binding holes 122b of the fork binding plate 122 and the pair of upper and lower through holes 132b of the main frame 13 respectively. The distance between the two fastening holes 142b of the rear frame 14 or the pair of gaps and the two fastening holes 150b of the saddle 15 are equal to each other.

The gap between the first pair and the second pair of the upper and lower through holes 132b of the main frame 13 may not be equal to the interval between the other pairs as necessary.

It is possible to change the position of the saddle 15 according to the change of use, detachment, attachment, can be attached using the binding auxiliary plate 134 when the footrest 17 or the wire mesh 18 for the cargo [Fig. 1, 6 and 7 can be moved by attaching a separate steering wheel portion 11 or a steering fork portion 12 (FIGS. 1 and 7).

In addition, the rear frame 14 connected to the rear axle shaft 161 has two main frame connecting bars 141 connected by welding or binding by the main frame 13 to form a bicycle [Fig. 4] or a hand cart. In use [Fig. 7] is configured not to flow when pushing or pulling.

Saddle 15 is provided with a seat belt for safety when using the binding hole (150b) and the trailer can be changed and removed, attached.

The pedal 124 allows the crank 123 to be attached and detached as a binding means to reduce the contact surface with the outside when used as a hand cart [Fig. 7].

In addition, the front wheel 125 and the rear wheel 16 are made of a material that can alleviate the impact of the road surface and can be used for a long time. A plurality of binding holes 134b are formed on the pair of binding auxiliary plates 134 for attaching the wire mesh 18 or the cargo wire 18, respectively.

It can be used not only as a bicycle as a means of play and exercise but also as a means of movement and transportation of bicycle trailers and handcarts.

Claims (5)

Shaft support connecting bar 21 for inserting and fixing the saddle support (2-1) of the tow bicycle to the insertion pipe 211 and the shaft expansion means (2-2) on both sides of the rear wheel shaft (2-2) of the tow bicycle to increase the fixing force And two rear wheel shaft connecting bars 22 which are extended to the binding hole 220d and bound by the binding means d '. Joints 23 of the shape in which two spheres 231 and 232 of different sizes are formed to form the rotation direction adjusting holes 231a and 231a 'such that they can be rotated not only in the left and right directions but also in the upward direction while maintaining the connection state. Bicycle trailer connector, characterized in that consisting of a binding plate (25) for binding between the multi-purpose bicycle And each of the support shaft binding holes 112a and 122a for binding with the support tube 131. The upper and lower binding holes 112b and 122b for binding to the handle binding plate 112 and the fork binding plate 122 and the main frame 13 and the rear frame 14, respectively, and the trailer connecting device, respectively. It consists of a separate steering wheel part 11 and a steering fork part 12 each having a handle part binding plate 112 and a fork binding plate 122, each of which has formed a left and right binding hole 112c and 122c for binding. Being Removal and attachment of cargo wire mesh (18) and saddle (15) in accordance with the change of use Penetration holes 132b penetrating the upper and lower surfaces of the pair of mainframes 13 for attaching the separated steering wheel part 11 and penetrating the left and right sides of the mainframe 13 for attaching the footrest 17. Two pairs of binding holes (133b) are formed The rear frame 14 has two main frame connecting bars 141 connected to the main frame 13 so as not to flow when being pushed or pulled, and a binding hole 142b for attachment of the steering wheel part 11 according to the use change. ) Is formed A pair of binding subsidiary plates 134 are formed to form a plurality of binding holes 134b for attaching the footrest 17 or the wire mesh 18 for cargo. Foot rest 17 consisting of a seat belt and a saddle 15 having a binding hole 150b for repositioning, dismounting and attachment, and provided with a self-locking means. Versatile tricycle characterized by consisting of a pedal 124 that can be attached and detached as a binding means The method of claim 1 The joint 23 is formed by combining two spheres 231 and 232 having different sizes, so that the rotation direction adjusting holes 231a and 231a 'are formed so that they can be rotated in the upper and left as well as the left and right while maintaining the connection state. Featured bicycle trailer coupling The method of claim 2 And each of the support shaft binding holes 112a and 122a for binding with the support tube 131. Bonding of the handle binding plate 112 and the fork binding plate 122 and the binding of the upper and lower binding holes 112b and 122b and the trailer linking device for removal and attachment to the main frame 13 and the rear frame 14. The steering wheel unit 112 and the steering wheel unit 11 and the steering fork unit 12 having the fork binding plate 122 formed with the left and right binding holes 112c and 122c, respectively, are characterized in that Multipurpose tricycle The method of claim 2 Binding holes 132b penetrating the upper and lower surfaces of the pair of mainframes 13 for attachment and detachment of the steering fork 12 separated from the attachment and detachment of the cargo wire mesh 18 and the saddle 15 according to the use change. And two pairs of binding holes 133b penetrating the left and right sides of the main frame 13 for attachment of the footrest 17, and the rear frame 14 is connected to the main frame 13 in two pairs. Mainframe connecting bar 141 is configured to form a binding hole (142b) for the attachment of the steering wheel handle 11 in accordance with the change of use, the footrest 17 or a number of wire mesh 18 for attachment Versatile tri-wheeled bicycle characterized in that the pair of binding auxiliary plate 134 is formed of two binding holes (134b)

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