JP2007076400A - Carrier with bicycle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a carrier with a bicycle, capable of easily carrying a load in a stable state, and securely changing the direction while traveling. <P>SOLUTION: This device comprises a four-wheel carrier 1, and a one-wheel bicycle connected to the rear end of the four-wheel carrier through a connecting means 3. The connecting means is provided with a vertical shaft 25 installed on the four-wheel carrier in a forward inclined posture, a first connecting member 27 installed on the vertical shaft to rotate the vertical shaft around a rotation center, a lateral shaft 29 disposed on the first connecting member, and a second connecting member 31 installed on the lateral shaft to rotate the lateral shaft around the rotation center. The one-wheel bicycle is connected to the second connecting member. The four-wheel carrier is provided with handlebars 13, and a brake lever 15 to operate a brake 21 of the one-wheel bicycle. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a transport vehicle with a bicycle, and more particularly to a transport vehicle with a bicycle in which a four-wheel transport vehicle is pushed by a single-wheel bicycle.

As a transport vehicle with a bicycle, for example, as disclosed in Japanese Utility Model Laid-Open No. 5-10189, a two-wheel transport vehicle is connected to the rear of the bicycle, and the two-wheel transport vehicle is pulled by a bicycle (hereinafter referred to as “bicycle transport vehicle”). "Conventional bicycle carrier" is already known.
Japanese Utility Model Publication No. 5-10189

  However, the conventional bicycle transporter has the following problems.

(A) Since the two-wheeled vehicle is towed by a bicycle, it is difficult to load and transport a heavy object on the two-wheeled vehicle. In particular, it is extremely difficult to climb a hill with heavy objects loaded on a motorcycle.

(B) Since the two-wheeled vehicle is towed by a bicycle, it is not easy to change the direction during traveling.

(C) Since the transport vehicle is a motorcycle, the transport vehicle is unstable.

  The present invention solves the above-described problems in a conventional bicycle-carrying vehicle, and can easily carry a load in a stable state and can reliably change the direction during traveling. It was made to offer.

  In order to solve the above problems, the present invention provides the following transport vehicle with a bicycle.

(1) It consists of a four-wheel transport vehicle and a unicycle connected to the rear end of the four-wheel transport vehicle via a connecting means,
The connecting means includes a vertical axis attached to the four-wheel transport vehicle in a forward inclined posture, a first connecting member attached to the vertical axis so as to rotate about the vertical axis, A horizontal axis disposed on the first connecting member, and a second connecting member attached to the horizontal axis so as to rotate about the horizontal axis,
Connecting the unicycle to the second connecting member;
A bicycle-equipped vehicle (claim 1), wherein the four-wheel vehicle is provided with a handle and a brake lever for operating a brake of the one-wheel bicycle.

(2) A spring is attached between the first connecting member and the second connecting member.

(3) The first connecting member includes a substantially U-shaped first U-shaped portion, and the second connecting member includes a substantially U-shaped first Nico-shaped portion, and the first U-shaped portion; The horizontal axis is inserted through the first U-shaped portion and the second U-shaped portion with the second U-shaped portion facing each other (Claim 3).

(4) The unicycle is detachable from the four-wheel transport vehicle.

[Operation of the invention]
[Invention of Claim 1]
When using a transport vehicle with a bicycle, a user rides on a unicycle and pushes the four-wheel transport vehicle while holding a handle provided on a four-wheel transport vehicle connected in front of the unicycle.

  The first connecting member in the connecting means is rotatable in the left-right direction with the vertical axis attached to the four-wheel transport vehicle as the rotation center.

  The second connecting member in the connecting means is rotatable in the vertical direction with the horizontal axis disposed on the first connecting member as the center of rotation.

  Therefore, the one-wheel bicycle connected to the second connecting member is rotatable in the left-right direction and the up-down direction with respect to the four-wheel transport vehicle.

  The direction change during traveling of the bicycle transport vehicle is performed by operating a handle attached to the four-wheel transport vehicle. Since the vertical axis is attached to the four-wheel transport vehicle in a forward tilting posture, when the four-wheel transport vehicle is curved in one direction by a handle operation, the vertical axis remains in the forward tilt posture together with the four-wheel transport vehicle. Turn in one direction. Therefore, the single-wheeled bicycle connected to the vertical axis through the first connecting part, the horizontal axis, and the second connecting part is inclined in the one direction. See FIGS. 10 and 11.

  For example, when the transport vehicle with a bicycle curves to the left as shown in FIGS. 10 and 11, the unicycle tilts to the left, and when the transport vehicle with a bicycle curves to the right, the unicycle Tilts to the right.

  Therefore, the transport vehicle with a bicycle can smoothly change the direction against the centrifugal force F (see FIGS. 10 and 11), and there is no risk of falling.

[Invention of claim 2]
The spring attached between the first connecting member and the second connecting member absorbs the up and down movement of the unicycle due to the unevenness of the road surface. Therefore, the wheels of the unicycle are always reliably grounded together with the wheels of the four-wheel transport vehicle.

  In addition, when the load is not loaded on the four-wheel transport vehicle or when only a very light load is loaded on the four-wheel transport vehicle, the spring pulls the handle provided on the four-wheel transport vehicle toward you. It also serves to prevent the front wheels of the four-wheel transport vehicle from lifting up.

[Invention of claim 3]
The first connecting member provided with the first U-shaped part, the second connecting member provided with the first Nico-shaped part, and the horizontal axis inserted through the first U-shaped part and the second U-shaped part, It works extremely smoothly and reliably.

[Invention of claim 4]
Since the unicycle is detachable from the four-wheel transport vehicle, the single-wheel bicycle can be detached from the four-wheel transport vehicle and the four-wheel transport vehicle can be used alone. It is also possible to remove the unicycle from the four-wheel transport vehicle and carry the unicycle and the four-wheel transport vehicle separately.

[Invention of Claim 1]
The invention of claim 1 exhibits the following excellent effects.

(A) In the transport vehicle with a bicycle according to claim 1, the user pushes the four-wheel transport vehicle in a state where the user rides the single-cycle bicycle and holds the handle provided in the four-wheel transport vehicle connected in front of the single-cycle bicycle. Therefore, it is easy to load and carry a heavy load, and it is also possible to load a heavy load and climb a hill.

(B) Since the transport vehicle is a four-wheeled vehicle, the transport vehicle is stable.

(C) Since the unicycle is rotatable in the horizontal direction and the vertical direction with respect to the four-wheel transport vehicle, the transport vehicle with the bicycle travels smoothly.

(D) Since the vertical axis is attached to the four-wheel transport vehicle in a forward tilting posture, when the four-wheel transport vehicle is curved in one direction by a handle operation, the one-wheel bicycle is tilted in the one direction. Therefore, the bicycle-equipped transport vehicle can smoothly turn against the centrifugal force, and there is no risk of falling.

[Invention of claim 2]
The spring attached between the first connecting member and the second connecting member absorbs the up and down movement of the unicycle due to the unevenness of the road surface. Therefore, the wheels of the unicycle are always reliably grounded together with the wheels of the four-wheel transport vehicle.

  In addition, when the load is not loaded on the four-wheel transport vehicle or when only a very light load is loaded on the four-wheel transport vehicle, the spring pulls the handle provided on the four-wheel transport vehicle toward you. It also serves to prevent the front wheels of the four-wheel transport vehicle from lifting up.

[Invention of claim 3]
The first connecting member provided with the first U-shaped part, the second connecting member provided with the first Nico-shaped part, and the horizontal axis inserted through the first U-shaped part and the second U-shaped part, It works extremely smoothly and reliably. These members have a simple structure and can be manufactured at low cost.

[Invention of claim 4]
Since the unicycle is detachable from the four-wheel transport vehicle, the single-wheel bicycle can be detached from the four-wheel transport vehicle and the four-wheel transport vehicle can be used alone. It is also possible to remove the unicycle from the four-wheel transport vehicle and carry the unicycle and the four-wheel transport vehicle separately.

  The transport vehicle with a bicycle according to the present invention includes a four-wheel transport vehicle 1 and a one-wheel bicycle 5 connected to the rear end of the four-wheel transport vehicle 1 via a connecting means 3.

  The illustrated four-wheel transport vehicle 1 is a cart provided with four wheels or casters 9, 9, 9, 9 on the lower surface of the platform 7. For example, wall plates (not shown) are provided on the four sides of the platform 7. ).

  The four-wheel transport vehicle 1 includes a handle 13 at the upper end of a frame 11 erected at the rear end.

  The four-wheel transport vehicle 1 includes a brake lever 15 for operating a brake (described later) of the unicycle bicycle 5. The brake lever 15 is attached to the handle 13 as an example.

  The unicycle 5 includes a single wheel 17, a pedal 19 that rotates the wheel 17, a brake 21, and a saddle 23. The brake 21 and the brake lever 15 are connected via a wire (not shown).

  Next, the connection means 3 for connecting the four-wheel transport vehicle 1 and the one-wheel bicycle 5 will be described.

  The connecting means 3 includes a vertical axis 25 attached to the four-wheel transport vehicle 1 in a forward inclined posture, and a first connecting member attached to the vertical axis 25 so as to rotate about the vertical axis 25 as a rotation center. 27, a horizontal shaft 29 disposed on the first connecting member 27, and a second connecting member 31 attached to the horizontal shaft 29 so as to rotate about the horizontal shaft 29 as a rotation center. .

  The vertical axis 25 is attached to the four-wheel transport vehicle 1 in a forward tilted posture, that is, in a state of being inclined such that the upper end 25a of the vertical axis 25 is positioned forward of the lower end 25b.

  What is indicated by reference numeral 33 is a bearing with a vertical axis 25, and each bearing 33 is fixed to a base plate 35.

  In the illustrated example, the base portion 27a of the first connecting member 27 is fixed to the vertical axis 25, and the vertical axis 25 is rotatably supported by the bearings 33 and 33. The vertical axis 25 may be rotatably attached, and the vertical axis 25 may not be rotatable.

  The illustrated example will be described in more detail. The first connecting member 27 includes a substantially U-shaped first U-shaped portion 27a, and the second connecting member 31 includes a substantially U-shaped second U-shaped portion 31a. The horizontal shaft 29 is inserted into the first U-shaped portion 27a and the second U-shaped portion 31a with the first U-shaped portion 27a and the second U-shaped portion 31a facing each other. Let

  A spring 37 is attached between the first connecting member 27 and the second connecting member 31.

  5 and 6, two coil springs 37 are attached above and below the horizontal axis 29 in a direction perpendicular to the horizontal axis 29.

  The one-wheel bicycle 5 is connected to the second connecting member 31.

  That is, as an example, the one-wheel bicycle 5 is connected to the second connecting member 31 via the connecting rod 39.

  As an example, the connecting rod 39 is formed by detachably connecting a pair of connecting rod constituting members 39a and 39b via a pair of connecting plates 41a and 41b.

  The unicycle 5 is detachable from the four-wheel transport vehicle 1.

  Although it is possible to separate the one-wheel bicycle 5 from the four-wheel transport vehicle 1 by separating the connecting rod 39 by the connection plates 41a and 41b, the single-wheel bicycle 5 can be attached to and detached from the four-wheel transport vehicle 1. In order to achieve this, as an example, the base plate 35 is provided with the bolts 43 and the locking portions 45, and the horizontal members 47 and 49 are provided on the frame 11 erected at the rear end of the four-wheel transport vehicle 1. The locking portion 45 is detachably locked to the member 49, and the bolt 43 is detachably screwed to the other horizontal member 47. See FIG.

  The unicycle 5 may be provided with an electric motor operated by a battery as a driving assist means.

It is a side view which shows an example of the transport vehicle with a bicycle by this invention. It is a top view of the carrier vehicle with a bicycle same as the above. It is a front view of the carrier vehicle with a bicycle same as the above. It is a side view which shows an example of a connection means. It is a top view of a connection means same as the above. It is sectional drawing of a connection means same as the above. It is a front view of a connection board. It is a side view which shows a base plate and a horizontal member. It is a front view of a base board. It is a top view which shows the state in which the carrier vehicle with a bicycle same as the above is changing direction. It is a rear view which shows the state which the conveyance vehicle with a bicycle same as the above is changing.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Four-wheel transport vehicle 3 Connection means 5 Unicycle 7 Base part 9 Wheel or caster 11 Frame 13 Handle 15 Brake lever 17 Wheel 19 Pedal 21 Brake
23 Saddle 25 Vertical axis 27 First connecting member 17a First U-shaped portion 29 Horizontal shaft 31 Second connecting member 31a First Nico-shaped portion 33 Bearing 35 Base plate 37 Spring 39 Connecting rod 39a Connecting rod component 39b Connecting rod configuration 39b Member 41a Connection plate 41b Connection plate 43 Bolt 45 Locking portion 47 Horizontal member 49 Horizontal member

Claims (4)

A four-wheel transport vehicle and a unicycle connected to the rear end of the four-wheel transport vehicle via a connecting means,
The connecting means includes a vertical axis attached to the four-wheel transport vehicle in a forward inclined posture, a first connecting member attached to the vertical axis so as to rotate about the vertical axis, A horizontal axis disposed on the first connecting member, and a second connecting member attached to the horizontal axis so as to rotate about the horizontal axis,
Connecting the unicycle to the second connecting member;
A bicycle-equipped transport vehicle characterized in that the four-wheel transport vehicle is provided with a handle and a brake lever for operating a brake of the one-wheel bicycle.   The bicycle transport vehicle according to claim 1, wherein a spring is attached between the first connecting member and the second connecting member.   The first connecting member includes a substantially U-shaped first U-shaped portion, and the second connecting member includes a substantially U-shaped first Nico-shaped portion, and the first U-shaped portion and the second U-shaped portion. The bicycle according to claim 1 or 2, wherein the horizontal axis is inserted through the first U-shaped portion and the second U-shaped portion in a state where the U-shaped portions face each other. Truck.   The transport vehicle with a bicycle according to any one of claims 1 to 3, wherein the one-wheel bicycle is detachable from the four-wheel transport vehicle.

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