JPH07215265A - Electric bicycle - Google Patents

Abstract

PURPOSE:To provide an electric bicycle which can prevent a thieving of the battery case of a battery and a helmet. CONSTITUTION:At the left and the front side of the support 7 in a supporting frame 3, a helmet holder 10 is provided in the projecting form to the upper side. This helmet holder 10 is composed as a pin form member which can hook a hooking ring provided at the rear part of a helmet 11, or a hooking ring provided to a chin strap. At the rear end of the support frame 3, a locking mechanism to lock a battery case releaseable is provided.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric bicycle, and more particularly, when a driving motor having a battery as a power source applies a driving force to wheels, the vehicle can travel (motor traveling) without stepping on a pedal. When the driving of the motor is stopped, it is possible to travel by depressing the pedal (pedal traveling), and further, using the driving force of the motor as an auxiliary force during traveling of the pedal (pedal traveling with motor). It relates to electric bicycles.

[0002]

2. Description of the Related Art Conventionally, as an electric bicycle of this type, there is known an electric bicycle including a wheel driving motor and a battery case for accommodating a battery serving as a power source of the motor. In such an electric bicycle, the battery case is mounted on, for example, a carrier arranged above the rear wheels. One or more batteries such as rechargeable dry batteries, rechargeable storage batteries, and non-rechargeable dry batteries are housed in the battery case.

[0003]

In such an electric bicycle, the battery case accommodating the batteries may be stolen. Therefore, as a measure against theft, the battery case is locked by the carrier. It is common to mount it on a carrier. However, there has been a demand for easier and more attractive anti-theft measures.

Further, in this type of electric bicycle, a helmet is obligatory in accordance with laws such as the Road Traffic Law when traveling by a motor or pedaling together with a motor. Because the helmet may be stolen,
As a measure to prevent theft, a helmet is generally attached to a part of a vehicle body by a lock provided in a part of the vehicle body. However, there has been a demand for easier and more attractive anti-theft measures.

[0005]

The present invention is directed to a wheel driving motor, a battery case accommodating a battery serving as a power source for the motor, and a battery case which is provided above the rear wheel and is detachable. And a support frame that supports the battery case in a mounted state, and a lock mechanism that is provided between the battery case and the support frame and that removably locks the battery case that is mounted on the support frame to the support frame. And a support frame, which is provided within a range of the support frame covered by the battery case, can hang the main body part by hanging a hooking part formed to extend from the main body part of the helmet. It is impossible to remove the hooking part of the helmet after it is covered with the battery case when it is attached to the battery case, and after the battery case is locked by the lock mechanism part It relates to an electric bicycle comprising; and a helmet holder made.

In the present invention, the wheel drive motor is
It may be for driving the front wheels or may be for driving the rear wheels. Also, the motor is
It is driven by a rechargeable dry battery, a rechargeable storage battery, a non-rechargeable dry battery, or the like. A predetermined number of these batteries are stored in the battery case. The support frame is provided above the rear wheels. The support frame is configured, for example, so that the battery case can be mounted by sliding the battery case in the front direction and can be removed by sliding it in the rear direction.

The lock mechanism portion is provided between the battery case and the support frame. The lock mechanism portion includes, for example, a lock into which a key is inserted, a rotating piece that is rotated by a rotating operation of the key inserted into the lock, and an inward / outward direction centered on a pivot attached to the rotating piece. It is configured to include a pair of rotating claws and a spring for urging the claws outward.

The helmet holder is provided on the support frame. This helmet holder is used when the battery case is not attached to the support frame or only part of it is attached to the helmet hooking part (such as a hook ring or a chin strap extending from the main body of the helmet). ) Can be multiplied. When the whole battery case is attached to the support frame, it is covered with the battery case, and after the battery case is locked by the lock mechanism, it is not possible to remove the hooking part of the helmet hung on the helmet holder. It will be possible.

The helmet holder is, for example, a pin-shaped member provided on the front portion of the support frame so as to project upward and to which a hook ring or a chin strap of the helmet can be hung.

It is preferable that the lock mechanism portion is locked by a power / lock key.

The battery case includes a left case part, a right case part spaced apart from the left case part, and a connecting part for connecting both case parts, and the left case part and the right case part have a plurality of batteries. It is preferable that the above can be stored in a substantially equal weight on the left and right.

[0012]

With the helmet holder, the main body can be suspended by hanging the hooking portion of the helmet when the battery case is not attached to the support frame or when only part of the battery case is attached to the support frame. Then, when the whole battery case is mounted on the support frame, it is covered with the battery case, and after the battery case is locked by the lock mechanism part, it becomes impossible to remove the hooking part of the hung helmet. . Therefore, it is possible to prevent the battery case and helmet from being stolen after the helmet holder is hung on the helmet holder, the entire battery case is attached to the support frame, and the lock mechanism locks the battery case. can do.

In the case where the helmet holder is provided on the front portion of the support frame in a projecting manner upward and is configured as one pin-shaped member on which a hook ring or a chin strap as a hooking portion of the helmet can be hung. Can prevent the battery case and the helmet from being stolen with an extremely simple and cost-effective configuration.
Further, when removing the helmet hung on the helmet holder, the battery case may be moved a little after unlocking the battery case, which is very convenient.

If the lock mechanism is to be locked by the power and lock key, it is not necessary to separately provide a dedicated lock member for the lock mechanism.

The battery case includes a left side case portion, a right side case portion, and a connecting portion for connecting them, so that the left side case portion and the right side case portion can accommodate a plurality of batteries in a substantially equal weight on the left and right sides. In the case where the battery case is used, the weight of the battery case can be balanced between the left and right, and heat can be efficiently dissipated from the battery.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to one embodiment shown in the drawings. The present invention is not limited to this.

In FIG. 1, the electric bicycle P is equipped with a motor 1 for driving the rear wheels 5. Above the rear wheel 5, a battery unit 2 serving as a power source of the motor 1 is provided. The battery unit 2 includes a support frame 3 which is long in the front and rear direction, a battery case 4 which is attached to the support frame 3 so as to be slidable in the front and rear direction, and detachable, and 20 single-type chargings accommodated in the battery case 4. Battery (1.2V × 20 = 2
4V).

As shown in FIGS. 2 and 3, the support frame 3 is provided with a case mounting portion 6 having a step and extending in the front-rear direction, and below the case mounting portion 6. A support portion 7 extending in the front-rear direction and having protrusions 7a, 7a horizontally extending in the middle portion of the length in the leftward and rightward directions.
And a substantially V-shaped mounting portion 8 provided in a suspended state on each of the left and right sides of the support portion 7. The projecting portions 7a, 7a of the support portion 7 are the battery case 4
Is formed so as to partially project to the left and right of the battery case 4 when attached to a predetermined position.

A single helmet holder 10 is provided on the left front portion of the support portion 7 of the support frame 3 so as to project upward. As shown in FIG. 4, the helmet holder 10 is provided with a hooking ring 12 as a hooking portion provided behind the main body of the helmet 11 as an extension, or an extension below the main body of the helmet 11. It is configured as a pin-shaped member to which a chin strap (not shown) as a hooking portion provided can be hooked.

As shown in FIGS. 2 to 4, the battery case 4 is provided with a left side case portion 4a and a right side case portion 4b which are symmetrically arranged to the left and right of the rear wheel 5 at predetermined intervals. is doing. Both the left side case portion 4a and the right side case portion 4b have an elongated rectangular parallelepiped shape. Inside the left side case part 4a and the right side case part 4b are 10 single-type rechargeable dry batteries (1.2 V x
(10 = 12V) is stored in a row in the front and rear in a standing state. As a result, the battery case 4 accommodating 20 dry batteries has a substantially equal weight on the left and right.

Left case part 4a and right case part 4b
Are connected by a connecting portion 4c that connects them together. The connecting portion 4c has a flat rectangular parallelepiped shape whose height is approximately half the height of the left side case portion 4a and the right side case portion 4b. Therefore, a space is formed below the connecting portion 4c. The connecting portion 4c is provided with a power feeding connector, a terminal, a charging connector, and the like.

As shown in FIGS. 5 and 6, at the rear end of the support frame 3, there is provided a lock mechanism portion 9 for releasably locking the battery case 4. This lock mechanism section 9
Is a lock 9a into which the power / locking key is inserted, a rectangular rotating piece 9b which is rotated by rotating the key inserted into the lock 9a, and a spindle 9 attached to the rotating piece 9b.
It is provided with a pair of claws 9d and 9d that rotate left and right (inward and outward) about c and 9c and a spring 9e that biases these claws 9d and 9d to the left and right.

At the center of the back side of the battery case 4, a mounting portion 13 extending in the longitudinal direction is provided. This mounting part 1
When the battery case 4 is attached to the support frame 3 by sliding the battery case 4 from the rear end of the support frame 3, the support frame 3 is sandwiched from the left and right. The rear of the rear end of the mounting portion 13 in the battery case 4 is a locking portion 15. The locking portion 15 is locked to the pair of claws 9d and 9d when the pair of claws 9d and 9d of the lock mechanism 9 is opened.

That is, such a pair of claws 9d and 9d
Closes when the long side of the rectangular turning piece 9b is horizontal (inward rotation) and opens when the short side of the turning piece 9b is horizontal (outward rotation). Then, when the claws 9d and 9d are opened, the tips of the claws 9d and 9d are caught by the locking portion 15, whereby the rear part of the battery case 4 is fixed, that is, the battery case 4 is locked.

The fixing of the battery case 4, that is, the unlocking of the battery case 4 is performed by the inward rotating operation of the pair of claws 9d, 9d in the lock mechanism 9. That is, from the locked state shown in FIGS. 5 and 6, the power source / locking key is inserted into the lock 9a of the lock mechanism portion 9 and rotated by 90 degrees. Then, the rectangular rotating piece 9b rotates from the position indicated by the chain double-dashed line in FIG. 7 to the position indicated by the solid line.

Then, the pair of claws 9d and 9d are connected to the support shaft 9c.
Rotating inward around 9c to move from the position of FIG. 6 locked by the locking portion 15 to the position of FIG. As a result, the tips of the pair of claws 9d and 9d are separated from the locking portion 15, and the battery case 4 is unlocked.

As shown in FIG. 4, the helmet holder 10
The hook ring 12 of the helmet 11 can be hung on the support frame 3 when the battery case 4 is not attached to the support frame 3 or only partially. Then, when the entire battery case 4 is mounted on the support frame 3, the battery case 4 is covered with the battery case 4, and after the battery case 4 is locked to the support frame 3 by the lock mechanism section 9, the helmet 11 hung is hooked. The ring 12 cannot be removed.

In this electric bicycle P, as described above, the support frame 3 is attached to the vehicle body, the lock mechanism portion 9 is provided on the support frame 3, and the lock mechanism portion 9 is engaged with the battery case 4. A locking portion 15 to be stopped is provided. Moreover, one helmet holder 10 as described above is provided at the front portion of the support portion 7 in the support frame 3 so as to project upward. Therefore, after the hook ring 12 of the helmet 11 is hung on the helmet holder 10 and the main body of the helmet 11 is suspended, the entire battery case 4 is mounted on the support frame 3 and the battery case 4 is locked by the lock mechanism 9. After the removal, the battery case 4 and the helmet 11 can be prevented from being stolen even though the mechanism is simple. Furthermore, since the helmet holder 10 is provided in the front part of the support frame 3, when the hung helmet 11 is removed, the battery case 4 needs only a slight movement to the rear.

Further, in the electric bicycle P, as described above, the battery case 4 is provided with the left side case portion 4a and the right side case portion 4b which are provided so as to be distributed to the left and right with respect to the rear wheel 5. Moreover, since 10 single-type dry batteries are housed in the left side case portion 4a and the right side case portion 4b, respectively, the battery case 4 has a substantially equal weight on the left and right sides. Therefore, the battery case 4 is balanced in weight on the left and right. Further, since the 20 dry batteries are divided into the left and right parts, the heat dissipation of the battery part 2 is good.

In addition, in the electric bicycle P, as described above, the support frame 3 is provided with the projecting portions 7a, 7a projecting outward from the battery case 4. Therefore, it is possible to reduce the possibility that the battery case 4 is damaged when the electric bicycle P falls.

[0031]

According to the electric bicycle according to the first aspect of the present invention, since the helmet holder having the above-described structure is provided on the support frame, the helmet holder is hooked to the hooking portion. It is possible to prevent the battery case and the helmet from being stolen after the whole battery case is mounted on the support frame and the battery case is locked by the lock mechanism portion.

According to the electric bicycle according to claim 2 of the present invention, since one helmet holder as described above is provided in the front portion of the support frame in a protruding manner, it is a very simple mechanism. To prevent the battery case and the helmet from being stolen after the entire battery case is attached to the support frame after the helmet hook ring is hung on the helmet holder and the battery case is locked by the lock mechanism. You can Further, since the helmet holder is provided at the front part of the support frame, when removing the hung helmet, it is only necessary to move the battery case to the rear slightly, which is very convenient.

According to the electric bicycle of the third aspect of the present invention, it is possible to prevent the battery case and the helmet from being stolen, and it is not necessary to separately provide a dedicated lock member for the lock mechanism portion.

According to the fourth aspect of the present invention, it is possible to prevent the battery case and the helmet from being stolen, and the battery case of the battery section is left-right weight-balanced. The heat dissipation of the battery is good.

[Brief description of drawings]

FIG. 1 is an overall configuration explanatory view of an electric bicycle according to an embodiment of the present invention as viewed from the front.

FIG. 2 is a structural explanatory view of a support frame of a battery section of the electric bicycle as seen from the front.

FIG. 3 is a structural explanatory view of the support frame of the battery section as viewed from above.

FIG. 4 is a configuration explanatory view of a state in which a battery case is placed on a support frame of the battery section as viewed from the front.

FIG. 5 is a structural explanatory view of the battery case of the battery section locked to a support frame as viewed from the rear surface.

FIG. 6 is a structural explanatory view of the battery case of the battery section locked to a support frame as viewed from the lower surface.

FIG. 7 is an explanatory view of a main part configuration showing a state where the battery case of the battery part is unlocked, as viewed from the rear surface.

FIG. 8 is a structural explanatory view of the battery case of the battery section in an unlocked state seen from the lower surface.

[Explanation of symbols]

 1 Wheel Driving Motor 2 Battery Part 3 Support Frame 4 Battery Case 4a Left Case Part 4b Right Case Part 4c Connection Part 5 Rear Wheel 6 Placement Part 7 Support Part 8 Attachment Part 9 Lock Mechanism Part 9a Lock 9b Rotating Piece 9c Support Axis 9d Claw 10 Helmet holder 11 Helmet 12 Hooking ring (Hatching part) 15 Locking part

Claims (4)

[Claims] 1. A wheel driving motor, a battery case for accommodating a battery serving as a power source of the motor, and a battery case provided above the rear wheel and detachably supporting the battery case in a mounted state. A support frame, and a lock mechanism portion provided between the battery case and the support frame for releasably locking the battery case mounted on the support frame to the support frame; When the battery case is attached to the support frame, it is possible to hang the main body part by hanging the hook part that is provided in the range covered by the battery case and extends from the main body part of the helmet. After the battery case is covered with the battery case and the lock mechanism locks the battery case, the helmet holder that makes it impossible to remove the hooked part of the helmet Bei motorized bicycle comprising. 2. The electric motor according to claim 1, wherein the helmet holder is one pin-shaped member provided on the front portion of the support frame so as to project upward and to which a hook ring as a hooking portion of the helmet can be hooked. bicycle. 3. The electric bicycle according to claim 1, wherein the lock mechanism portion is locked by a power / lock key. 4. The battery case comprises a left side case part, a right side case part spaced apart from the left side case part by a predetermined distance, and a connecting part connecting both case parts, and a plurality of the left side case part and the right side case part are provided. 2. The electric bicycle according to claim 1, wherein the battery of FIG.