JP2504458Y2 - Space-saving bicycle handle - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a space-saving bicycle handlebar, and more particularly to a handlebar that can save space when parking a bicycle.

[0002]

2. Description of the Related Art Recently, due to the rapid increase in the number of bicycles, for example, bicycle parking lots in front of stations and supermarkets have become full, and bicycles that stick out on the street are obstructing traffic. is there. For people living in apartments such as condominiums, the bicycle parking lot there is also full,
I sometimes have to bring my bicycle into the building, but it is an obstacle in the hallway and indoors.

Therefore, a space-saving bicycle for parking a bicycle is required, and some space-saving bicycle handles for the handle portion that determines the width of the bicycle have been proposed.

For example, a) A rotatable disc having a handle bar is rotatably mounted on a fixed disc formed on a lug portion above a handle post, and both discs are locked by a spring force. When folding, the handlebar is made parallel to the front-back direction of the vehicle body by pulling up the rotatable disc upward and rotating it 90 degrees and engaging the dowel bolt with the dowel hole. (See, for example, Japanese Utility Model Laid-Open No. 63-122148).

B) The handlebar is divided into two parts in the horizontal part near the center, and L-shaped grooves are formed at the ends near the inside of the handlebar, and the handlebars are clamped and fixed with upper and lower clamping plates. Yes, loosen the bolts when folding,
One that can be folded downward along the L-shaped groove (see, for example, Japanese Utility Model Laid-Open No. 63-123383).

C) A lower handle post fitted and fixed to the front hawk stem, an upper handle post for sandwiching the handle bar, and a connecting and fixing portion for both handle posts. One or more engaging parts are formed on the outer side, the connecting and fixing part is provided on the upper end part of the lower handle post, and the connecting and fixing part is formed with through-holes in the upward and downward directions to form the upper handle post. While inserting, one side part of the connecting and fixing part is internally equipped with a locking part piece that has a knob part on the outside and projects into the insertion hole inside by a spring,
One that can be engaged with the engaging part of the upper handle post, the other side of the connecting and fixing part is bifurcated, and a through hole is provided therethrough with a tightening screw for reducing the diameter. 4-1
19790 gazette)).

[0007]

Among the conventional space-saving type bicycle handles, in the above a), the rotatable disc and the fixed disc are connected by the spring force and the pin from the side. ing. Therefore, both cannot be firmly fixed,
There was a risk that the steering wheel would rattle in the vertical and horizontal directions, and the maneuverability would deteriorate.

In the case of the above b), the handlebar divided into two in the horizontal portion near the center is folded downward,
The height of the handlebar is reduced, but the width remains the original width of the handlebar. Therefore, the width of the bicycle has not changed, and the space in the width direction for parking the bicycle has to be the same as the conventional one.

Further, the above c) is the above a) and b).
In order to solve the above problem, the present invention was devised by the same person as the present application, and while being excellent in strength and reducing the width direction when parking, it is composed of an upper handle and a lower handle. It was pointed out that there are still problems in terms of cost and cost.

An object of the present invention is to solve the problems of the conventional space-saving bicycle handlebar. That is, the object of the present invention is to have a relatively simple structure to facilitate manufacturing, reduce weight, and reduce costs.
(EN) It is an object to provide a space-saving bicycle handlebar that has excellent strength, can be made smaller in the width direction when parked, can be easily operated with a relatively small force, and can be operated smoothly.

[0011]

The structure of the space-saving bicycle handle according to the present invention is such that the diameter of the handle post portion 1 near the upper portion is reduced and the reduced diameter portion 2 has the same outer diameter as the post portion 1. The cylindrical body 3 is fitted and fixed so that the handle lug portion 4 can be fitted and fixed to the short cylindrical body 3.

The short cylindrical body 3 is provided with a groove 5 for rolling the ball on the outer circumference thereof, and a concave hole 6 for ball engagement is formed in a part thereof.

A vertical split groove 8 for tightening is formed in a side portion of a hole 7 for fitting into the short cylindrical body 3 in the lug portion 4 so that it can be fixed by a horizontal tightening screw 9 with a lever. ,
A ball 10 urged by a spring 11 toward the concave groove 5 of the short cylindrical body 3 is internally provided in a part of the lug portion 4,

The position of the recessed hole 6 in the circumferential direction is formed so that the ball 10 engages with the handlebar 12 in the driving state.

In the figure, 13 is a lifting bolt, and 14
Indicates a bolt for fixing the bar.

[0016]

The function of the space-saving bicycle handle according to the present invention is as follows. 1) First, when the bicycle is in operation, that is, when the handlebar 12 is in a state of being perpendicular to the line X indicating the direction of the front wheels (not shown), tightening with a lever installed laterally on the handle lug portion 4 By tightening the screw 9, the lug portion 4
The vertical dividing groove 8 on the side of the fitting hole 7 is narrowed, and the lug portion 4 is fastened and fixed in a state of being fitted into the short cylindrical body 3 near the upper portion of the handle post portion 1. In the above case, the ball 10 pressed by the spring 11 provided inside the lug portion 4 is engaged in the recessed hole 6 formed in a part of the short cylindrical body 3 (FIG.
See FIG. 2).

2) Next, in order to make the handlebar 12 in a space-saving state in which the lateral width of the handle is narrowed when the bicycle is parked, that is, in order to make the handlebar 12 parallel to the line X indicating the direction of the front wheel, the tightening screw 9 with lever is tightened. By loosening, the lug portion 4 is made rotatable around the short cylindrical body 3.

Then, while holding the handlebar 12, the lug portion 4 is rotated around the short cylindrical body 3 by about 90 degrees so that the handlebar 12 is parallel to the line X indicating the direction of the front wheels from the above-mentioned driving state. Then, the tightening screw with lever 9 is tightened. With this, the lug portion 4 is fixed to the short cylindrical body 3, but since the handlebar 12 is parallel to the line X indicating the direction of the front wheels, the lateral width of the steering wheel that determines the lateral width of the bicycle is narrowed. The space saving state is maintained.

When the lug portion 4 is rotated around the short cylindrical body 3 as described above, the ball 10 pressed by the spring 11 in the lag portion 4 comes out from the concave hole 6 and the short cylindrical body 3 is formed. It rolls along the concave groove 5 formed on the outer periphery (see FIG. 4), which prevents the lag portion 4 from being displaced in the upward and downward directions and the height of the handlebar 12 to be changed.

3) In order to return the state of the handle during parking of the bicycle to the state during driving, the tightening screw 9 with lever is loosened so that the lug portion 4 is rotatable around the short cylindrical body 3. The handlebar 12 may be rotated by about 90 degrees so that the handlebar 12 is at a right angle to the line X indicating the direction of the front wheel, and the lever tightening screw 9 may be tightened. With this, the lug portion 4 is fixed to the short cylindrical body 3, and the handlebar 12 is set to a state for driving (see FIGS. 1 and 2 above).

Also in the above case, the ball 10 pressed by the spring 11 in the lug portion 4 moves along the concave groove 5 formed on the outer periphery of the short cylindrical body 3, and the lug portion 4 moves upward and downward. The handlebar 12 is prevented from being displaced and engages with the recessed hole 6 when the handlebar 12 is at a right angle with the line X indicating the direction of the front wheels, so that the handlebar 12 has returned to the position for driving. Can be easily understood, and the handle bar 12 can be accurately set to the driving state.

[0022]

EXAMPLE An example of the space-saving bicycle handle according to the present invention is as follows. The reduced diameter portion 2 is formed near the upper portion of the handle post portion 1. The reduced diameter portion 2
Is, for example, a length of about 30 mm near the top of the handle post portion 1, and 1 if the outside diameter of the post portion 1 is, for example, 22 mm.
Reduce the outer diameter to about 6 mm.

A short cylinder 3 is fitted and fixed to the reduced diameter portion 2. The short cylinder 3 has, for example, a length of 24 mm and an inner diameter of 16 mm.
mm, the outer diameter is about 22 mm, and the reduced diameter portion 2 is fitted and fixed to the reduced diameter portion 2 by, for example, press fitting or the like, and the upper end is made to coincide with the upper end of the post portion 1.

A concave groove 5 for rolling the ball is formed on the outer periphery of the short cylindrical body 3.
The groove 5 is formed at a position approximately midway along the length of the short cylindrical body 3 with a depth such that the ball 10 can roll along it and cannot be easily removed in the vertical direction. It is set around.

A concave hole 6 for ball engagement is formed in a part of the concave groove 5.
However, its circumferential position is determined by the relationship with the position of the ball 10 installed in the handle lug portion 4.
In other words, the state when the handlebar 12 is for driving,
That is, when the handlebar 12 is in a state of being perpendicular to the line X indicating the direction of the front wheel, the recessed hole 6 is formed at a position where the ball 10 coincides with.

On the side portion of the lug portion 4, a tightening screw 9 with a lever is inserted into a flange portion 18 having a vertical groove 8 for fastening, and the lug portion 4 is fitted onto the short cylindrical body 3. It can be tightened and fixed in the assembled state. In addition, a small hole 1 that penetrates into the fitting hole 7 from the outside in a part of the lug portion 4
5 is formed, and a ball 11 urged by a spring 11 so as to be able to project to the inner fitting hole 7 is internally provided therein. The position of the ball 10 in the circumferential direction is set to the short cylindrical body 3 as described above.
It corresponds to the position of the recessed hole 6 for ball engagement formed in the above.

The recessed hole 6 for engaging the ball is provided at a position corresponding to the ball 10 when the handlebar 12 is in operation as in the above embodiment, but the handlebar 12 is separately provided. When the bicycle is parked, the ball 10
It may be provided at the position where the comes.

The pull-up bolt 13 and the handlebar fixing bolt 14 in the figure are the same as those in the prior art. 1
6 is a cap of a short cylinder, 17 is a filling of a small hole.
Needless to say, the dimensions shown above are examples and are not limited to these.

[0029]

As is clear from the above, the space-saving bicycle handle according to the present invention has a relatively simple structure.
Not only can the manufacturing be facilitated, the weight reduced, and the cost reduced, the strength is also excellent, the width direction can be made small when the bicycle is parked, and the operation can be performed easily with a comparatively small force, which enables smooth operation. .

That is, a bicycle is a lightweight, small-sized vehicle / sports equipment which is light, non-polluting, and lightweight, but since the lateral width of the handle interferes with parking, a space-saving bicycle handle has been conventionally devised. However, they have problems that the handle rattles up and down or left and right, that the maneuverability is poor, that even if the handlebar is folded, it does not become narrow in the width direction, or there is a problem in terms of weight and cost. It was something that remained.

On the other hand, the space-saving bicycle handle according to the present invention has a relatively simple structure as described above, which facilitates the manufacture, reduces the cost, and reduces the weight. It is possible and sufficient in strength.

The operation for changing the handlebar from the driving state to the parking state and vice versa is performed by loosening the tightening screw with lever at the lug portion and holding the handlebar. It is only necessary to rotate the part 90 degrees and tighten the tightening screw again.

Therefore, when the bicycle is parked, the handlebar is parallel to the line indicating the direction of the front wheels, so that the space in the lateral direction of the bicycle can be saved, and the operation can be performed with a comparatively small force. . For example, even women and children can easily switch between driving and parking, saving space easily and improving manners.

Further, when the above-mentioned lug portion is rotated, the ball pressed by the spring inside the lug portion rolls along the concave groove on the outer periphery of the short cylindrical body. Therefore, the lug portion can be smoothly rotated, and when the lug portion is rotated, the position of the handle bar does not shift in the vertical direction, and the height of the handlebar does not change.

In addition, when the handlebar is returned to the driving condition, when the handlebar is returned to the driving position by rotating the lug part, the ball pressed by the spring in the lug part is The handlebar can be easily, quickly, and accurately set to the operating state because it engages in exactly the position of the recessed hole.

[Brief description of drawings]

FIG. 1 is a cutaway side view of a main portion of a space-saving bicycle handle according to an embodiment of the present invention when a bundle bar is in an operating state.

FIG. 2 is a cross-sectional plan view of essential parts in the state shown in FIG.

FIG. 3 is a side view of the main part with the handle bar shown in FIG. 1 in a state in which the handle bar is parked.

4 is a cross-sectional plan view of relevant parts in the state shown in FIG.

FIG. 5 is a perspective view of the handle post portion used in the one shown in FIG.

[Explanation of symbols]

1-Handle post part 11-Spring 2-Reduced diameter part 12-Handle bar 3-Short cylindrical body 13-Pulling bolt 4-Handle lug part 14-Bar fixing bolt 5-Recessed groove 15-Small hole 6-Recessed hole 16 -Cap 7-Catching hole 17-Filling 8-Vertical groove X-Line indicating the direction of the front wheel 9-Tightening screw 10-Ball

Claims (1)

(57) [Scope of utility model registration request] 1. The diameter of the handle post portion 1 near the top is reduced,
A short cylindrical body 3 having the same outer diameter as the post portion 1 is fitted and fixed to the reduced diameter portion 2 so that a handle lug portion 4 can be fitted and fixed to the short cylindrical body 3. 3, a groove 5 for ball rolling is provided around the outer circumference, and a groove 6 for ball engagement is formed in a part of the groove 3. The lug 4 has a hole for fitting the short cylindrical body 3 therein. 7. A vertical split groove 8 for tightening is formed on the side of 7 so that it can be fixed with a tightening screw 9 with a lever installed laterally,
A ball 10 urged by a spring 11 toward the concave groove 5 of the short cylindrical body 3 is internally provided in a part of the inside, and the position of the concave hole 6 in the circumferential direction of the handlebar 12 at the time of driving is set. A space-saving bicycle handlebar formed so that the ball 10 is engaged in the state.