JP3071804U - Bicycle rollover prevention device - Google Patents

Abstract

(57) [Summary] [Problem] To prevent a bicycle from falling over even when the bicycle is stopped at a traffic light, for example, and at the same time, to easily park a bicycle in a narrow bicycle parking lot without the auxiliary wheels of the bicycle being disturbed. It is an object of the present invention to provide a bicycle rollover prevention device that can be used. A bicycle rollover prevention device according to the present invention includes an auxiliary wheel and an auxiliary column to which the auxiliary wheel is attached, and is configured to be attached to a bicycle stand.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a rollover prevention device attached to a bicycle stand, and more particularly, to a rollover prevention device that is disabled while the bicycle is parked and is in a use state while traveling.

[0002]

[Prior art]

 FIG. 3 is a diagram showing a conventional bicycle having no rollover prevention device. FIG. 3 (a) is a view of a standing bicycle with the bicycle parked viewed from the side. FIG. 3 (b) is a view of the running bicycle viewed from the side with the stand raised. FIG. 3 (c) is a view of a standing bicycle with the bicycle parked viewed from behind. FIG. 3D is a view of the running bicycle viewed from behind, with the stand raised.

In FIG. 3, reference numeral 100 denotes the entire bicycle, 1 denotes a stand, and 2 denotes a rear wheel axle. In FIGS. 3 (a) and 3 (c), the conventional bicycle has a stand set up during parking to prevent the bicycle from falling. 3 (b) and 3 (d), in the conventional bicycle, the stand is raised during running so that the stand does not touch the ground during running.

FIG. 4 is a view showing a conventional bicycle having a rollover prevention device. FIG. 4A is a side view of a bicycle having an auxiliary wheel attached to a rear wheel axle. FIG. 4B is a view of the bicycle having the auxiliary wheels attached to the rear wheel axle as viewed from behind.

In FIG. 4, reference numeral 100 denotes the entire bicycle, 2 denotes a rear wheel axle, and 4 denotes auxiliary wheels. In FIGS. 4 (a) and 4 (b), in the conventional bicycle, the stand was removed and the auxiliary wheel 4 was attached, so that the auxiliary wheel 4 was attached to the ground regardless of whether the bicycle was parked or running. Make sure that the bicycle does not fall.

[0006]

[Problems to be solved by the invention]

 However, in the case of a bicycle having no auxiliary wheels 4 as shown in FIG. 3, when the bicycle is traveling, for example, when the bicycle is stopped at a traffic light or the like, the bicycle body tilts to the left or right. Therefore, it was necessary to support the bicycle with one foot so that the bicycle would not fall. For example, when the driver is an elderly person, or when the driver is traveling with luggage or a child, when the bicycle is temporarily stopped at a traffic light, etc. But he was seriously injured.

In the case of a bicycle having the auxiliary wheels 4 at all times as shown in FIG. 4, even if the bicycle is stopped at a traffic light or the like, the bicycle does not fall down, but the bicycle is parked in the bicycle parking area. In such a case, the auxiliary wheels 4 remain on the ground, so that the auxiliary wheels 4 sometimes hinder the parking of the bicycle in a narrow bicycle parking lot or the like.

[0008] The present invention has been made in view of the above-described problems, and an object of the present invention is to prevent a bicycle from falling over even when a bicycle is stopped at a traffic light or the like. Another object of the present invention is to provide a bicycle rollover prevention device that can easily park a bicycle without the auxiliary wheels of the bicycle being obstructed even in a narrow bicycle parking lot or the like.

[0009]

[Means for Solving the Problems]

 To achieve the above object, the bicycle anti-rollover device of the present invention comprises an auxiliary wheel and an auxiliary column, and is configured to be attached to a bicycle stand.

[0010]

[Embodiment of the invention]

 FIG. 1 is a view showing a bicycle to which a rollover prevention device according to an embodiment of the present invention is attached. FIG. 1 (a) is a view of a standing bicycle with a bicycle parked viewed from the side. FIG. 1B is a view of the running bicycle viewed from the side, with the stand raised. FIG. 1 (c) is a view of a standing bicycle with a bicycle parked viewed from behind. FIG. 1D is a view of the running bicycle viewed from behind, with the stand raised.

In FIG. 1, 100 is an entire bicycle, 1 is a stand, 2 is a rear wheel axle, and 3 is a rollover prevention device attached to the stand. In FIGS. 1 (a) and 1 (c), the bicycle of the present invention has a stand to prevent the bicycle from falling down when the bicycle is parked. In FIGS. 1 (b) and 1 (d), the bicycle of the present invention raises the stand so that the auxiliary wheels of the anti-rollover device attached to the stand do not roll over the ground during running.

FIG. 2 is a diagram showing details of the rollover prevention device according to the embodiment of the present invention. FIG. 2A is a side view of a state in which the rollover prevention device 3 is attached to the stand 1. FIG. 2B is a view of a state in which the rollover prevention device 3 is attached to the stand 1 as viewed from behind. FIG. 2C is a diagram illustrating another example of the rollover prevention device 3. FIG. 2D is a diagram showing still another example of the rollover prevention device 3.

In FIG. 2, the anti-rollover device 3 includes a mounting member 30 for attaching the anti-rollover device 3 to the stand 1, a fastening member 32 for fixing the mounting member 30 to the stand 1, an auxiliary wheel 36, an auxiliary column 34, It comprises washers 40, 42, 44 for attaching the wheel 36 to the auxiliary column 34, and an auxiliary wheel shaft 38. As shown in FIG. 2B, the auxiliary support 34 is curved so that the auxiliary wheel 36 is located outside the stand 1. The shape of the auxiliary support 34 is bent at two places and the middle part is formed by a straight line, but is not limited to such a structure, and may have another shape such as a curve. The auxiliary wheel 36 is rotatably attached to the auxiliary wheel shaft 38 using washers 40, 42, 44 and the like. As shown in FIG. 1 (d), the rollover prevention device 3 is usually provided as a pair on both sides of the stand 1, but may be provided on either side of the stand 1 in some cases.

In the anti-rollover device 3 of the present invention, as shown in FIGS. 2A and 2B, an auxiliary column 34 having an auxiliary wheel 36 is fixed to the stand 1 with a fastening member 32. It may be welded to the stand 1 in advance by welding or the like. Further, as shown in FIG. 2C, the mounting member 30 can be widened to increase the number of contact portions with the stand 1. When the cross-sectional shape of the stand 1 is not circular but rectangular or the like, the shape of the portion where the fastening member 32 contacts the stand 1 is, as shown in FIG. It may be formed in a rectangular shape or the like.

When the bicycle is running with the rollover prevention device 3 attached to the stand 1 as described above, for example, when the bicycle is stopped at a traffic light or the like, the front wheels are moved around one of the feet. Since the bicycle can be supported by the four points of the foot, the rear wheel, and the rollover prevention device 3, the rollover of the bicycle can be prevented. In particular, the electric bicycle, which has become popular recently, has a high risk of rollover due to its heavy body weight. The use of the bicycle's anti-rollover device is highly effective.

If the distance W between the auxiliary wheels of the anti-rollover device 3 shown in FIG. 1D is wider than the width of the steering wheel, when traveling in a narrow place, the steering wheel passes, but the auxiliary The distance between the auxiliary wheels of the rollover prevention device 3 is greater than the width of the steering wheel because the wheels may come into contact with surrounding walls and passersby, and may cause problems such as contact with other bicycles when parking in the bicycle parking lot. Also need to be narrow.

[0017]

[Effect of the invention]

 As described above, according to the present invention, it is possible to prevent the bicycle from rolling over when stopped at a traffic light or the like. In addition, bicycles can be easily parked in narrow bicycle parking lots without the auxiliary wheels of the bicycle being in the way.

[Brief description of the drawings]

FIG. 1 is a diagram showing a bicycle to which a rollover prevention device according to an embodiment of the present invention is attached.

FIG. 2 is a diagram illustrating a detailed configuration of the rollover prevention device according to the embodiment of the present invention;

FIG. 3 is a view showing a conventional bicycle having no rollover prevention device.

FIG. 4 is a view showing a conventional bicycle having a rollover prevention device.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Stand, 2 ... Rear axle, 3 ... Rollover prevention device, 30 ...
Mounting member, 32: fastening member, 34: auxiliary support, 36
... auxiliary wheels, 38 ... auxiliary wheel shafts, 40, 42, 44 ... washers

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[Procedure amendment]

[Submission date] May 9, 2000 (200.5.9)

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Claims for utility model registration

[Correction method] Change

[Correction contents]

[Utility model registration claims]

Claims (1)

[Utility model registration claims] 1. An anti-rollover device comprising an auxiliary wheel and an auxiliary column to which the auxiliary wheel is attached, and attached to a bicycle stand.