JP2560701Y2 - Folding bike - Google Patents

Description

[Detailed description of the invention]

[0001]

INVENTION The present invention relates to a two and easy to operate
Relates to a bicycle can be folded in.

[0002]

2. Description of the Related Art Conventional bicycles are constructed so as to be convenient for folding, carrying, storing and the like.
What folds in half in the center of the frame is the mainstream.

[0003]

However, in the case of the above-mentioned conventional folding type bicycle, the structure is complicated, and not only the folding operation but also the operation of opening and riding the bicycle is troublesome, which requires time and effort. There are drawbacks.

The main object of the present invention is to provide a foldable bicycle which can be easily folded and put into a state where it can be easily and safely mounted.

Still another object is to provide a foldable bicycle having a simple operation mechanism for easily deploying the folded bicycle and putting it in a rideable state.

Yet another object is to provide a foldable bicycle that can be folded substantially in half, ie, approximately 180 degrees.

Yet another object is to provide a foldable bicycle that can be folded or unfolded by rotating a single handle clockwise or counterclockwise.

Yet another object is to provide a foldable bicycle with an operating mechanism that locks the bicycle in a rideable state with substantially no additional structure.

[0009]

The structure of the folding bicycle according to the present invention is as follows. 1. Bifurcated vertically from head tube 14 backward
Of the tubes divided into
-10, the lower one is called down tube 12, and this
The loss bar 10 and the down tube 12 are located almost in the middle of the vehicle body.
In, back to the hinge means placed above under position bordering
Divided into click-Hawk 18 and the chain stay 20, the back
K Hawk 18 and Chain Stay 20 will eventually be
It is attached by narrowing the width of the upper and lower you are, the hinge means
Extends approximately 180 ° horizontally about the vertical axis 28
Openable upper bracket 24 and upper bracket 26
And a first bracket 24 and a second bracket 26 below.
Rutotomoni the back on the back of the upper of the first bracket 24
The front end of the hawk 18 joins and the front of the second bracket 26
Of the center binding rear end of the cross bar 10, the lower
The back of the first bracket 24 of the chain-stay 20
The front end is joined and the front of the second bracket 26 is
- the rear end of the tubing 12 is attached, the cross-
A rear end of the bar 10 and the down tube 12,
Burake Tsu in a position close to the door 26, the cross-bar 10 and down
・ The post 30 connecting the tube 12 up and down is freely rotatable
And the vertical position of this post 30
The elastic pin 34 protrudes rearward from the
Connection of the base of each is between the first bracket 24 of the stage
A rotatable handle 32 is attached, and the
The length of the elastic pin 34 is slightly longer than the length of the handle 32.
Long Set, further ahead of the tip and the handle 32 of the elastic pin 34
The ends are non-rotatably connected and the handle 32
The upper one and the lower one are connected in a brace shape.
Position of the connecting part between the handle 32 and the elastic pin 34.
By engagement of the displacement, the first bracket 24 second bracket
26 to close the application of direction or open direction of Seal Script emissions
It is in the allow, the first bracket 24
It is projected protrusions 36 from the protrusion 36, the first bracketing
24 and the second bracket 26 close and move to the riding state
When the handle 32 gets over and passes, this handle 32
Locking a folding bicycle according to claim.

[0010] 2. First bracket 24 and second bracket 26
In the opposite side to the pivot 28, the opposing portion
The tongue 44 can be fitted on one side and the tongue 44 can be fitted on the other.
The notch described above, wherein a notch 42 is provided.
The placing of the folding bicycle.

[0011]

[Function] When the bicycle is turned upright and the handle 32 is turned counterclockwise when viewed from above,
Cross Bar 10 and Back Hawk 18 and Down Chu
Bed 12 and chain stay 20 is hinge means (first bracket
24 and the second bracket 26) are open and can be folded horizontally about a pivot 28 . That is, it can be folded in two. In assembly, turning the handle clockwise closes and locks the hinge means about pivot 28 . As a result, the cross bar 10 and the back bar
Hawk 18 and down tube 12 and chain stay 20
Develops in a straight line and becomes rideable.

[0012]

DETAILED DESCRIPTION OF THE INVENTION Referring to the drawings, and initially with reference to FIG. 1, a foldable bicycle generally comprises a cross bar 10 and a down tube 12 secured together near a head tube 14. . The seat tube 16 is substantially vertically oriented with a pair of back forks 18 and a pair of chain stays 20 secured thereto to provide support. Crank tube 22 is located near the bottom of seat tube 16. For folding bikes,
The height of the seat tube 16 is typically reduced (as compared to a non-collapsible bicycle) and the distance between the cross bar 10 and the down tube 12 is therefore reduced.

More specifically, the present invention includes an operating mechanism that allows the bicycle to be folded. The operating mechanism couples the cross bar 10 and the down tube 12 to the back fork 18 and the chain stay 20 to provide a pivotal relationship therebetween and secure the bicycle in a rideable state as shown. .

Referring further to FIGS. 2 and 3, the operating mechanism is for pivotally rotating the cross bar 10 and the down tube 12 with respect to the back fork 18 and the chain stay 20, as well as the cross bar 10. To the back fork 18 and hinge means for coupling the down tube 12 to the chain stay 20.

The hinge means generally back Hawke 18 and chain stay 20 a pair of first bracket 24 to which it respectively being fixed to the front end, as well, after the cross bar 10 and the down tube 12 It is composed of a pair of second brackets 26 fixed to the respective ends . First and second bracket 24
And 26 are attachments that are pivotally connected (openable and closable) at one end side by a suitable means such as a vertical bolt (pivot) 28 .

[0016] Each pair of the first part racquet 24 first nib <br/> racket 26 (i.e., the cross bar 10 and the back Hawke 18
And first and second nibs racquet 24 of the pair that is defined as it found which is fixed to 26, and, down
Tube 12 and chain stay 20 to the first pair that is defined as it found that are fixed and the first nib La <br/> socket 24 26) constitutes the hinge means. Each (upper and lower)
The hinge means can be rotated (deployed) about a bolt (axis) 28 by at least about 180 degrees as shown in FIG.

When the hinge means is closed (see FIG. 1)
The bicycle is ready for riding, and when the hinge means is opened about 180 degrees (FIG. 2), the bicycle is folded.

The operating mechanism further being arranged in a substantially vertical direction between the cross bar 10 and the down tube 12 adjacent to the nib racquet 26, and, pivotably attached to it al Includes posts 30 that are installed.
Handle 32 of brace shapes, relative first section racquet 24, and, mounted for pivoting therebetween. A pair of elastic pins 34 are arranged between the post 30 and the handle 32, are fixed to them, and are attached to them so as to be pivotable. Also, the length of the elastic pin 34 is slightly longer than the distance from the post 30 to the handle 32. As a result, (1) To put the bicycle in the riding state, the hinge means must be completely closed and not opened. And the second brackets 24 and 26 are fixed, and at this time, they come into contact with the projections 36 to be locked, and inevitably "fix" the bicycle to the riding state, and the handle 32 is turned counterclockwise in FIG. Direction). Projection 36 is first
It is arranged on one of the bracket 24. The padding 38 is preferably located on the handle 32.

FIGS. 4 and 5 further illustrate the action when the bicycle is folded, when in the folded position (FIG. 5), the handle 32 is rotated away from the cross bar 10. FIG. On the other hand, closing the hinge means by attracting the first and second nib racquet 24 and 26 together, the handle 32 is (are promoted beyond the center of the plane) into contact with the protrusion 36 is rotated, its result, The bicycle is ready for riding.

The bicycle when is folded from riding state, the rotation and the handle 32 rides over the projection 36 towards the cross bar 10 takes place from the first bracket 24 promote it by a second bracket 26 Open the hinge means by moving away. Handle until hinge means open about 180 degrees
32 is rotated, so that the bicycle is in the folded position as shown in FIG.

Referring to FIG. 2, and preferably in accordance with the present invention, each of the first brackets 24 is substantially solid and each of the second brackets 26 has a channel formed therein.
40, where the first bracket of each hinge means
24 is acceptable in its corresponding channel 40. In addition, each of the first brackets 24 has a notch 42 formed at its end, and each of the second brackets 26 has a tongue 44 formed on its end.
Wherein the tongs 44 are each receivable in a corresponding notch. This additional structure provides support when the bicycle is in a rideable condition, and limits torsion of the frame due to torsional forces, particularly while riding.

Referring to FIGS. 2 and 3, and preferably in accordance with the present invention, a torsion spring 46 is provided inside the down tube 12 around the end of the post 30.
The torsion spring 46 urges the down tube 12 counterclockwise, so that the bicycle generally
It remains in the folded position under the influence of the spring 46.

[0023]

The foldable bicycle according to the present invention has the above-described structure, so that it is easy to fold and assemble, and very robust. In particular, according to the present invention, when the bicycle is folded, it becomes substantially half the size, so that not only does it take up no storage space, but also the bicycle can be hung in half when parked. Further, according to the present invention, the vehicle can be fixed in a rideable state without an additional mechanism.

[Brief description of the drawings]

FIG. 1 is a perspective view of a foldable bicycle according to the present invention shown in a rideable state. However, the handle,
Front wheels, rear wheels, saddles, and the like are omitted from the illustration.

FIG. 2 is a perspective view of the folding bicycle shown in a folded position.

FIG. 3 is a side sectional view of a part of the operation mechanism according to the present invention;

FIG. 4 is a cross-sectional view of the operation mechanism illustrating the operation mechanism when the bicycle is in a folded position.

FIG. 5 is a cross-sectional view illustrating the operating mechanism when the bicycle is in the folded position, as viewed along the line 5-5 in FIG. 2;

[Brief description of reference numerals]

 10 Cross bar 12 Down tube 14 Head tube 16 Seat tube 18 Back fork 20 Chain stay 24 First bracket 26 Second bracket 30 Post 32 Handle 46 Torsion spring

Claims (2)

(57) [Scope of request for utility model registration] (1) Up and down from the head tube (14 ) toward the rear
Of the tubes that are bifurcated in the direction,
Cross bar 10 and the lower one as down tube 12
The cross bar 10 and down tube 12 are
Approximately in the middle of the body, hinge the hinged means
And split into Back Hawk 18 and Chain Stay 20
This Back Hawk 18 and Chain Stay 20
At the rear end, the upper and lower widths are narrowed and joined, and the hinge means is arranged in a horizontal direction about a vertical pivot 28.
The upper first bracket 24 and the second bracket that can be deployed approximately 180 °
Racket 26 and the lower first bracket 24 and second bracket 24
26, and the back of the upper first bracket 24
The front end of the back fork 18 is connected to the second bracket
The rear end of the cross bar 10 is connected to the center of the front of the
The chain on the back of the lower first bracket 24
The front end of the stay 20 is connected to the front of the second bracket 26
Indicates that the rear end of the down tube 12 is connected, and that the cross bar 10 and the rear end of the down tube 12 are connected.
In the position near the second bracket 26, a cross bar
Post connecting the down tube 12 with the down tube 12
30 is rotatably mounted and this post
Elastic pin 34 projects rearward from upper and lower positions of 30
On the other hand, the upper and lower stages between the first brackets 24 have respective
A handle 32 with a rotatable connection at the base is attached
The length of the elastic pin 34 is
Set slightly longer than the length, and furthermore,
The tip of the handle 32 is connected in a non-rotatable state.
At the same time, the handle 32 is
The handle 32 and the elastic pin 34
Due to the displacement of the positional relationship of the connecting portion, the first bracket 24 and
Close or open tension on the second bracket 26
The projection 36 is projected from the first bracket 24, and
In the original thing 36, the first bracket 24 and the second bracket 26 are closed.
Beyond through handle 32 ride when moving to a riding state Te
Filtered, folding bicycles, characterized in that, to lock the handle 32. 2. The first bracket 24 and the second bracket 26
On the opposite side of the pivot 28,
The tongue 44 is on the other side, and the tongue 44 is
2. A notch 42 is provided.
The placing of the folding bicycle.