WO2019112173A1

WO2019112173A1 - Connectable bicycle

Info

Publication number: WO2019112173A1
Application number: PCT/KR2018/012650
Authority: WO
Inventors: 박민식
Original assignee: 주식회사 빅버디
Priority date: 2017-12-08
Filing date: 2018-10-24
Publication date: 2019-06-13
Also published as: KR101932170B1

Abstract

The present invention presents a connectable bicycle, which enables a bicycle user to simply attach/detach a front wheel to/from the lower end of a front fork and to mount the separated front wheel near a rear wheel and carry the bicycle, comprises: bearings (26) of which peripheral surfaces are formed into triangular protruding parts (24) and which are respectively mounted in a pair in front and rear hubs; a fork end (2) having a fixing end (20), which is mounted at the end of a normal front fork (FF), has a triangular grove (200) formed therein and corresponding to the triangular protruding part (24) of the bearing (26), a fastening part (202) provided at one end of the outer side thereof, and a locking groove (204) formed at the opposite end thereof, an opening and closing end (22) having a triangular groove (220) formed therein, a latch (224) elastically pressed by a weak-elasticity spring (222) and axially supported to a free end by means of a pin (226), and a steel wire (46) connected to the latch (224) and extending so as to pass around the circumference thereof, and a hinge part (28) for rotatably supporting the opening and closing end (22) for the fixing end (20); a remote handle (4) for rotating the opening and closing end (22), while linked therewith, by interposing the steel wire (46) therebetween; and a strong-elasticity spring (30) disposed at the side of the fastening part (202) of the fixing end (20) so as to apply elastic force to the opening and closing end (22), and also has: a synchronizer (8) comprising a pipe body (80) attached to the bottom surface of a spacer (S), and a rod end bearing (82); and a clutch pin (10) of which one end is formed as a stopper (102).

Description

Interchangeable bikes

The present invention relates to an interchangeable bicycle which can be used as a conventional one-person bicycle by connecting a plurality of ordinary single-person bicycles in a line or separating them from each other and, in particular, The front fork of the rear bicycle connected to the rear axle of the front bicycle can be easily separated and assembled when the front fork of the rear bicycle connected to the rear axle of the front bicycle is separated, The present invention relates to a structure that can be carried on a car body and an interconnectionable bicycle having a function of preventing the rear bicycle body from being turned when steering in a connected state.

Conventional interconnectable bicycles are known to be capable of arranging longitudinally or transversely connecting two two-person bicycles with an attachment, as disclosed in the following Patent Document 1. In addition, as disclosed in Patent Document 2, It is also known as a bike with a configuration in which a stationary bicycle can be connected continuously back and forth.

This type of bicycle is equipped with a frame consisting of a front fork, a head tube, a top tube, a seat tube, a seat stay, and a chain stay, and is identical to an ordinary one-person bicycle. When a plurality of bicycles are connected continuously to the rear of one bicycle, And a plurality of bicycles can be connected in series by connecting an empty front fork to the rear wheel axle of the front bicycle.

However, as described above, when a plurality of bicycles are connected in series, the following problems arise.

* When the rear bicycle follows the front bicycle at the change of direction, the front fork of the rear bicycle tilts with respect to the seat stay of the front bicycle at the turning point, and this phenomenon becomes more and more tilted toward the rear bicycle Not only is the transition impossible, but it also reverses in the opposite direction.

The present inventors have found that an interconnecting bicycle is characterized in that the top tube is divided into a front portion connected to the head tube and a rear portion connected with the seat stay and connected between them by clutch means, A bicycle in which a synchronizer for synchronizing to be rotated relative to the steering angle of the steering wheel is disposed has been proposed in Patent Document 3 below.

However, the bicycle of the above configuration is complicated in the structure of the clutch means.

In order to solve this problem, the inventor of the present invention proposed a bicycle in which the clutch means of the top tube divided by the relative rotation is realized by one pin and a pin insertion hole, have.

The inter-connectable bicycle proposed by the present inventor is advantageous in that a plurality of bicycles can be connected in a line, and even when the bicycle is steered while traveling, there is no advantage that the rear bicycle can be turned off. However, This problem is not only troublesome but also a problem of carrying the separated front wheel, and the like, and improvement is needed.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide an inter-connectable bicycle having a configuration in which a bicycle user can separate or assemble a front wheel from a lower end of a front fork in a simple operation and mount the removed front wheel on its own bicycle body .

Another object of the present invention is to provide an interconnectable bicycle in which the structure of a synchronizer necessary for a bicycle capable of running continuously by connecting several bicycles is further improved, thereby ensuring reliability and accuracy of operation.

According to an aspect of the present invention, there is provided an inter-connectable bicycle comprising: a bearing having a circumferential surface as a triangular protrusion and mounted in pairs in front and rear hubs, respectively; A fixing end which is formed at an inner side of a triangular protrusion of the bearing and has a locking part at one end thereof and a locking groove formed at the opposite end thereof and is mounted on the end of a normal front fork, An opening / closing end formed to be biased by a weakly elastic spring and pivotally supported by a pin on a free end and extending through the periphery of a steel wire whose one end is connected to the latch, and a hinge A fork end having a portion; A remote knob for interlockingly rotating the opening / closing end via the steel wire; And a rigid spring that is disposed on the side of the fastening portion of the fixed end and applies an elastic force to the opening / closing end.

Further, in the interconnectable bicycle of the present invention, the rigid resilient spring has a stronger elastic force than the weakly resilient spring.

Further, in the interlinkable bicycle of the present invention, the other end of the steel wire is fixedly attached to a lever plate rotatably supported on an inner side of the front fork, and the outer side of the steel wire is covered and guided by a shell do.

In addition, in the interconnectable bicycle of the present invention, the front fork includes a fin tube into which a clutch pin with a stopper is inserted, and a stop pin attachment orthogonally attached to the fin tube, And a rod end bearing which is connected to the lower surface of the spacer rotatably and which is rotatably supported by a tube.

In addition, in the interconnectable bicycle of the present invention, the wheel mount may be further provided with a bolt fixedly attached between the seat stay and the chain stay, and the end thereof may be screwed to the center nut hole of the front wheel.

The above-described interconnectable bicycle of the present invention can separate the front wheel from the front fork by opening the opening / closing end in the front wheel hub, and the opening / closing end is opened by the steel wire interlocked with the remote knob, .

Therefore, the present invention has an advantage that the front fork can be easily separated or assembled from the front fork, and the front fork of the bicycle having the front wheels separated can be assembled or separated from the rear wheel hub of other bicycles easily and easily.

According to the above-described synchronizer, the stopper of the clutch pin prevents the clutch pin from coming off from the rod end bearing, so that there is an advantage that the excessive steering is prevented in advance.

In addition, since the separated front wheels can be mounted on the wheel mounter of the vehicle body by the bolt nut assembling method, there is an advantage that the problems that can not be solved by the conventional interconnectable bicycle can be solved collectively.

1 is a side view of a bicycle according to the present invention;

2 is an enlarged partial perspective view of the structure of the remote knob shown in Fig. 1 and the periphery thereof; Fig.

3 is a side cross-sectional view showing a vertical operation of the remote knob;

4 is a side cross-sectional view with the remote knob positioned at the top dead center;

5 is a side cross-sectional view showing the open state of the front fork end according to the top dead center shift of the remote knob;

6 is a sectional view taken along the line VI-VI in Fig. 5;

7 is a side sectional view of the front fork end in a state in which front wheels are disassembled;

8 is a schematic view of a rear wheel shaft configuration of a bicycle according to the present invention.

9 is a side view showing an example in which two bicycles of the present invention are connected in a line.

10 is a diagram showing an example in which front wheels of a rear bicycle are mounted on a wheel mounter when two bicycles are connected in a line;

11 is a side sectional view showing a closed state of the front fork end in accordance with the bottom dead center shift of the remote knob.

12 is a side cross-sectional view showing an example in which the latch of the front fork end is operated at an initial stage of the upward movement of the remote knob;

13 is a side sectional view showing the configuration of a synchronizer and a clutch pin added to a bicycle to which the present invention is applied.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a side view of a bicycle according to the present invention showing the combination of a front fork FF constituting a vehicle body, a head tube HT, a spacer S and a top tube TT, The seat stay SS and the chain stay CS are assembled in the same position as in a conventional bicycle but the down tube DT includes a characteristic structure connected to support the bottom surface of the top tube TT.

In the present invention, the fork end (2) provided at the lower end of the front fork (FF) is arranged in an openable and closable structure, and a remote knob (4) for opening and closing it is provided above the front fork A wheel mounter 6 is attached between the seat stay SS and the chain stay CS.

At the end of the wheel mounter 6, a wheel mounting bolt 60 is attached, which is usually installed to a size conforming to the nut hole formed in the hub of the front wheel.

A part of the front part of the top tube TT is separated and placed into a floating tube IT which is integrated with the head tube HT and the top tube TT is connected to the floating tube IT and the head tube HT, and a synchronizer 8 is attached and fixed to the bottom surface of the spacer S.

When the spacer S is rotatably disposed with respect to the floating tube IT, the clutch pin 10 is inserted and used when the bicycle is used as a one-passenger or a front bicycle, so that the floating tube IT and the top tube TT are integrally formed Connected,

2, the remote knob 4 is connected to a lever plate 40 provided at the upper end of the front fork FF and is connected to the outside through a slot 42 formed on the outer circumferential surface of the front fork FF. .

The lever plate 40 is rotatably supported by a shaft 44 on the opposite side of a portion connected to the remote knob 4 from the inside of the upper end of the front fork FF and is pivotally supported on the lever plate 40 by a pair of steel wires (Steel wire) 46 is adhered and fixed.

These pair of steel wires 46 are again covered with the shell 48 inside the front fork FF and are bound to the fork end 2 shown in Fig.

On the other hand, on the lower side of the lever plate 40, a pin tube 12, into which the clutch pin 10 is fitted, is horizontally installed to expose one of the pin tube 12 and the pin tube 12. At a position orthogonal to the pin tube 12, An assay 14 is disposed.

The upper end of the shell 48 is fixed to the bracket 50 separately from the steel wire 46.

The synchronizer 8 is constituted by a tube body 80 attached to the bottom surface of the spacer S and a rod end bearing 82 extending from the rod body so as to be able to protrude and retract therefrom.

The clutch pin 10 is selectively inserted into either the clutch hole 16 formed through the spacer S and the pin tube 12 fixed to the upper side of the front fork FF.

The clutch pin 10 preferably has a shape in which the circumferential groove 100 is engaged in the middle and the stopper 102 is formed at one end.

When the clutch pin 10 is inserted into the pin tube 12, the stopper pin 14 is inserted into the circumferential groove 100 and is firmly fixed.

When the clutch pin 10 is engaged with the clutch pin 10 or inserted into the pin tube 12, the stopper 102 prevents the rod end bearing 82 from being disengaged from the clutch pin 10 give.

The steel wire 46 and the shell 48 illustrated in this embodiment can be replaced with a conventional brake cable.

3, the remote handle 4 is arranged to be movable up and down within a range L defined by the slot 42, and the clutch pin 10 is arranged to move up and down relative to the other bicycle And is inserted into the pin tube 12 through the rod end bearing 82 when connected backward.

At this time, the stopper 102 of the clutch pin 10 does not come off the rod end bearing 82 from the clutch pin 10 even if the distance between the pin tube 12 and the rod end bearing 82 becomes wider at the time of steering And prevent excessive steering as a result of this action.

When the remote knob 4 is positioned at the bottom dead center as shown in Fig. 3, the lever plate 40 pivots about the axis 44 to a low position, and as a result, the steel wire 46 is pushed by the bracket 50 In a downward direction.

Conversely, when the remote knob 4 is moved to the top dead center as shown in FIG. 4, the lever plate 40 also rotates to pull the steel wire 46 upward while being placed at a high position.

In the above-described configuration, it is preferable that the remote knob 4 is connected to the lever plate 40 in a structure capable of rotating horizontally.

As an example, the remote knob 4 and the lever plate 40 are connected in a structure pivotally supported by a single rivet element, as shown in Fig. 2, The remote knob 4 can be pivoted laterally at the top dead center position and can be fitted and fixed in the "a" groove of the slot 42.

The steel wire 46 protected and guided by the shell 48 extends through the interior of the front fork FF with the shell 48 and is connected to the fork end 2.

Fig. 5 shows the detailed structure of the fork end 2 according to the present invention.

In the figure, the fork end 2 includes a fixed end 20 and an open / close end 22 which are opposed to each other.

The fixed end 20 and the opening and closing end 22 are assembled so as to surround the bearing 26 having the triangular protrusion 24 in cooperation with each other at the end of the front fork FF.

The inner side surfaces of the fixed end 20 and the opening and closing end 22 are provided with

triangular grooves

200 and 220 so as to receive and fix the triangular protrusion 24 surrounding the bearing 26.

6, the triangular protrusions 24 and the

triangular grooves

200 and 220 are formed in mutually conformable shapes so that each of the

triangular grooves

200 and 220 is connected to the triangular protrusions 24) so as to assemble them into the correct position.

5, the stationary end 20 and the open / close end 22 are combined so as to be relatively rotatable by a hinge portion 28 provided at one end.

On the other hand, the shell 48 extending through the inside of the front fork FF is pulled toward the hinge portion 28 and fixedly connected to the fastening portion 202 provided integrally with the fixed end 20, The steel wire 46 guided along the guide shaft 22 passes through the strong elastic spring 30 interposed between the fixed end 20 and the opening and closing end 22 and then extends along the circumference of the opening and closing end 22, And is fixedly connected to one end of the latch 224 through the elastic spring 222.

The rigid resilient spring 30 is arranged to exert an elastic force in a direction in which the opening and closing end 22 is combined with the fixed end 20 and the resilient spring 222 is arranged to press the latch 224 against the locking position .

The latch 224 is rotatably supported at the free end of the opening and closing end 22 by a pin 226. A free end of the locking end 20 is provided with a locking groove 204 in which the latch 224 is engaged, Respectively.

The user can separate the bearing 26 from the fork end 2 of the front fork FF as shown in Fig. 7, with the opening / closing end 22 opened with respect to the fixed end 20. Fig.

When the front fork (FF) of the bicycle separated from the bearing 26 is assembled to the rear wheel of another bicycle, two bicycles can be converted into a bicycle arranged in a line.

To this end, the bicycle according to the present invention is constructed so that another bearing (26) having a triangular projection (24) at both ends of the rear wheel shaft (RA) As shown in Fig.

The bearing 26 including the triangular projecting portion 24 rotatably supports the front fork FF of the rear bicycle in which the front wheel is separated and does not support the rear wheel shaft RA, By assembling the fixed end 20 of the front fork FF and the opening and closing end 22 to the pair of triangular projections 24, the two bicycles are connected together as shown in Fig.

At this time, the front wheel separated from the rear bicycle can be carried by screwing it to the bolt 60 of the wheel mounter 6.

As shown in Fig. 10, the wheel mounter 6 is provided with one bolt 60 at its end, so that the nut holes 62 formed in the hubs of the separated front wheel are screwed into this, It is possible to mount the front wheel on the wheel mounter 6.

The process of reassembling the separated front wheels to the front fork (FF) is performed in the reverse order of the separation state shown in Fig.

That is, when the hub of the front wheel is positioned inside the open / close end 22 and the upper half of the triangular projection 24 of the bearing 26 is assembled to fit along the triangular groove 200 of the fixed end 20, The triangular grooves 220 of the opening / closing end 22 correspond to the lower half of the triangular projecting portion 24, and the state shown in FIG. 7 is obtained.

In this state, when the remote handle 4 is lowered to the bottom dead center and the steel wire 46 is moved downward, the weak elastic spring 222 provided at the end of the opening / closing end 22 and the rigid elastic spring 222 provided at the side of the hinge 28 (30) is gradually released from the compressed state, and at the same time, the opening / closing end (22) is rotated.

The latch 224 rotates the pin 226 to the locked position when the resilient spring 222 is elongated. When the opening / closing end 22 is pivoted to the end, the latch 224 rotates to the fixed end 20 by the locking grooves 204. As shown in FIG.

Accordingly, the opening / closing end 22 is integrally combined with the fixed end 20 so as to enclose the bearing 26 of the front wheel, thereby returning to a state in which it can be used as a single-passenger or a front bicycle.

When the opening / closing end 22 is combined with the fixed end 20 as described above, the remote knob 4 is pulled up again to easily pull the steel wire 46 upward.

When the steel wire 46 is pulled upward, its pulling force acts first on the terminating latch 224.

When the latch 224 is pulled by the steel wire 46, the resilient spring 222 is firstly contracted and the rotation of the latch 224 is started. When the latch 224 is pulled out from the locking groove 204 as shown in FIG. 12 The opening and closing end 22 is freely rotatable with respect to the fixed end 20. [

In this state, when the user pulls the remote knob 4 up to the upper dead point and pulls the steel wire 46 up to the upper end, the strong elastic spring 30 located at the side of the hinge portion 28 is contracted, As a result, the opening / closing end 22 rotates with the hinge portion 28 as a point to be in the open state shown in Fig. 5, and the bearing 26 is separated from the front fork FF .

13, a spacer S is rotatably connected between a floating tube IT and a top tube TT, which are integrally connected to the head tube HT, and at the same time, A rod end bearing 82 is disposed in the tubular body 80 fixedly attached to the bottom of the spacer S so that the stopper 102 is formed at one end of the clutch pin 10 And the circumferential groove 100 is formed close to the end.

The clutch pin 10 is inserted into the clutch hole 16 formed in the spacer S when the bicycle is used as a single passenger or a front bicycle so that the space between the floating tube IT and the spacer S and the top tube TT The clutch pin 10 of the rear bicycle is pushed by the rod end bearing 82 provided in the synchronizer 8 of the rear bicycle as shown by the one-dot chain line in Fig. 13 when the two bicycles are connected together back and forth. And inserted into the fin tube 12 of the front fork (FF).

The tip end of the stop pin 14 inserted in the orthogonal direction within the pin tube 12 is fitted and constrained in the circumferential groove 100 of the clutch pin 10 in this process so that the clutch pin 10 ) Does not occur naturally.

When the clutch pin 10 is displaced from the clutch hole 16 of the spacer S, the spacer S and the top tube TT are transformed relative to the floating tube IT so as to be relatively rotatable, The rotation of the clutch pin 10 due to the steering of the steering wheel is transmitted to the spacer S through the rod end bearing 82 when the ball is inserted into the fin tube 12 through the bearing 82, (TT), the rear bike is steered smoothly along the front bike.

This operation is the same as that shown in PCT Patent Publication No. WO 2008/133401 proposed by the inventor of the present invention. However, in the present invention, since the stopper 102 prevents the rod end bearing 82 from being disengaged from the clutch pin 10, The effect of suppressing excessive steering is further shown.

Claims

A bearing 26 whose circumferential surface is a triangular protrusion 24 and which is mounted on the front and rear hubs, respectively;

A triangular groove 200 corresponding to the triangular projection 24 of the bearing 26 is formed on the inner side and a coupling portion 202 is provided on one end of the outer side and a locking groove 204 is formed on the opposite end of the triangular groove 200, And a latch 224 having a triangular groove 220 formed inside and being repressed by a weak elastic spring 222 is provided at the free end with a pin 226 to the end of the front fork (FF) An opening and closing end 22 supported by the latch 224 and extending through the periphery of a steel wire 46 connected at one end to the latch 224 and a hinge 22 for rotatably supporting the opening and closing end 22 with respect to the fixed end 20. [ A fork end (2) with a support (28);

A remote knob 4 for interlockingly rotating the opening / closing end 22 via the steel wire 46;

A rigid resilient spring (30) arranged on the side of the fastening part (202) of the fixed end (20) and arranged to apply an elastic force to the opening / closing end (22) and having a stronger elastic force than the weak elastic spring (222);

The interconnected bicycle is configured to include the.
The method according to claim 1,

The other end of the steel wire 46 is attached and fixed to a lever plate 40 rotatably supported by a shaft 44 from the inside of the front fork FF and the outside of the steel wire 46 is fixed by a shell 48 Wherein the bicycle is constructed to be shielded and guided.
3. The method of claim 2,

The front fork FF includes a pin tube 12 into which a clutch pin 10 with a stopper 102 is inserted and a stop pin attachment 14 which is attached in a direction orthogonal to the pin tube 12 A synchronizer 8 composed of a rod end bearing 82 connected to the tube body 80 in a stretchable and contractible manner is disposed on the bottom surface of a spacer S rotatably supporting the top tube TT with respect to the floating tube IT The interconnected bicycle of the configured configuration.
The method according to claim 1,

And a wheel mount 6 fixedly attached between the seat stay SS and the chain stay CS and having a bolt 60 screwed to the center nut hole 62 of the front wheel hub at the end thereof Interconnectable bicycles to be.