JP2009220667A - Electric bicycle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an electric bicycle in which an electric wire connected to a tail lamp is protected. <P>SOLUTION: On a rear portion outside of a rear fender 36 provided above a rear wheel 4, a tail lamp unit 38 is disposed. To the tail lamp unit 38, the electric wire 42 extending in a longitudinal direction along the inside of the rear fender 36 is connected. A middle portion of the electric wire 42 is retained between the rear fender 36 and an electric wire holder 46 disposed in the inside of the rear fender 36. A part of the electric wire 42 exposed from the electric wire holder 46 positioned near the tail lamp unit 38 is protected by a nut 48a from scattering articles from the rear wheel 4. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an electric bicycle that assists driving force by an electric motor.

An electric bicycle that assists the driving force by an electric motor is known. The electric bicycle is provided with a battery (power source), and electric power is supplied from the battery to the electric motor.
On the other hand, some bicycles having a power source such as a battery use a power source from the power source to turn on a lighting means such as a tail lamp (see, for example, Patent Document 1).

In the bicycle according to Patent Document 1, a lamp is disposed in the housing, and the housing is fixed to a rear fender disposed above the rear wheel. An electric wire (wiring) for supplying electric power to the lamp enters the housing through an insertion hole formed in the housing.
JP-A-3-54083

  However, in the bicycle according to Patent Document 1, there is no disclosure of how the electric wire extending from the tail lamp housing is routed along the rear fender. If the electric wire is arranged along the inner side surface of the rear fender, the wiring is easily damaged by the scattered matter from the rear wheels such as pebbles. In particular, the wiring in the vicinity of the opening of the housing needs to be protected because it is in an exposed state. On the other hand, there is a situation where it is desirable to avoid adding new parts for protecting the electric wire.

  The present invention has been made based on such a background, and a main object thereof is to provide an electric bicycle capable of protecting an electric wire connected to a tail lamp.

  The invention according to claim 1 is an electric bicycle that assists the driving force by an electric motor, wherein an arc-shaped rear fender disposed along the outer periphery of the rear wheel above the rear wheel, and a lamp in the inner space. A tail lamp unit disposed on the rear outer side of the rear fender, and disposed in the longitudinal direction of the rear fender along the inner surface of the rear fender, and one end of the rear fender enters the tail lamp unit, and power is supplied to the tail lamp unit. An electric wire for supplying the electric wire, an arcuate electric wire holder that is disposed in the longitudinal direction of the rear fender along the inner side surface of the rear fender and holds the electric wire facing the inner side of the rear fender, and the electric wire holder is connected to the rear fender. And a plurality of fixing members for fixing to the tail roller. Near the mounting position of the rear unit and upstream of the tail lamp unit as viewed in the direction of rotation of the rear wheel when moving forward, and upstream of one end of the electric wire entering the tail lamp unit inside the rear fender It is an electric bicycle characterized by having the electric wire guard which rose in step.

The invention according to claim 2 is characterized in that the fixing member provided on the upstream side of the tail lamp unit includes a bolt and a nut, and the nut is inside the rear fender and serves as the wire guard. The electric bicycle according to claim 1.
The invention according to claim 3 is characterized in that the electric wire holder has a concave groove extending in the longitudinal direction and accommodating the electric wire at a position deviated from the center in the width direction. It is a bicycle.

  The invention according to claim 4 is the electric bicycle according to any one of claims 1 to 3, wherein some of the plurality of fixing members include rivets.

  According to invention of Claim 1, the middle part of an electric wire can be protected by hold | maintaining an electric wire between a rear fender and an electric wire holder. Furthermore, by arranging at least one of the fixing members for fixing the electric wire holder to the rear fender in the vicinity of the tail lamp unit mounting position and upstream of the tail lamp unit when viewed in the direction of rotation of the rear wheel when moving forward, The portion exposed from the wire holder in the electric wire (a part of the electric wire located near the tail lamp unit) can be protected by this electric wire guard. In other words, scattered objects from the rear wheel such as pebbles flying toward the exposed portion can be received by the wire guard to protect the exposed portion. Thereby, the electric wire connected to the tail lamp can be protected.

Since the fixing member is a member that is inevitably provided for fixing the electric wire holder to the rear fender, by using this fixing member to guard the electric wire, it is possible to add new parts and increase the number of assembly steps. , Can protect the electric wire. Thereby, an electric wire can be protected, without raising a cost.
According to invention of Claim 2, when the bolt and nut are used as a fixing member, the part exposed from the electric wire holder in an electric wire is used by using the nut arrange | positioned inside a rear fender as an electric wire guard. Can be protected. That is, since the electric wire can be guarded by the rising of the nut, the electric wire can be protected at a low cost without providing a special electric wire guard.

According to the third aspect of the present invention, since the recessed groove for receiving the electric wire is provided at a position that is relatively far from the rear wheel compared to the center in the width direction of the electric wire holder and is offset from the center in the width direction. Contact between the ring and the electric wire holder can be prevented.
According to the fourth aspect of the present invention, since the rear fender and the electric wire holder are integrally fixed by the rivet, these members are not separated when the rear fender and the electric wire holder are handled, and can be handled as an integral part. . Thereby, the assembly property of an electric bicycle and the handleability of components can be improved.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
FIG. 1 is a left side view of an electric bicycle 1 according to an embodiment of the present invention.
In the following, the left-right direction in FIG. 1 is the front-rear direction of the electric bicycle 1, the up-down direction in FIG. 1 is the height direction of the electric bicycle 1, and the direction perpendicular to the plane of FIG. The left part of the electric bicycle 1 in FIG.

  The electric bicycle 1 can assist the driving force by the electric motor 2 and can be used as a normal bicycle. The electric bicycle 1 includes a front wheel 3 and a rear wheel 4, and a frame 5 that rotatably holds these wheels 3 and 4. The electric motor 2 is disposed in a hub 10 provided at the center of the front wheel 3. The front wheel 3 and the rear wheel 4 each include a wheel 6 and a tire 7 disposed on the outer periphery of the wheel 6. Hereinafter, the tire 7 of the front wheel 3 is referred to as “front wheel tire 7a”, and the tire 7 of the rear wheel 4 is referred to as “rear wheel tire 7b”. The frame 5 includes a front fork 8 that rotatably holds the front wheel 3 and a frame body 9 that rotatably holds the rear wheel 4.

  The front fork 8 includes a fork portion 12 that rotatably holds the front wheel 3 and a steering column 13 that extends upward from the fork portion 12. The steering column 13 is inserted through the front portion of the frame body 9 (specifically, a top tube 19 described later) from below to above, and is rotatable relative to the frame body 9. The front fork 8 is held by the frame body 9 so as to be swingable around the central axis of the steering column 13. By operating the handle 14 fixed to the upper end of the steering column 13, the front wheel 3 and the front fork 8 can be swung around the central axis of the steering column 13.

  A pair of left and right brake levers 16, 16 are attached to the handle 14, and are arranged at the front part and the rear part of the electric bicycle 1 by the driver holding the pair of left and right brake levers 16, 16, respectively. The front wheel brake 17 and the rear wheel brake 18 can be operated to decrease the speed of the electric bicycle 1 or to stop the electric bicycle 1. The brake lever 16 attached to the right end of the handle 14 corresponds to the front wheel brake 17, and the brake lever 16 attached to the left end corresponds to the rear wheel brake 18. A brake operation detection sensor (not shown) for detecting the operation is attached to the brake lever 16.

  Further, an arc-shaped front fender 15 that functions as a so-called mudguard is fixed to the front fork 8. Scattered objects such as pebbles scattered from the front wheels 3 toward the driver when the electric bicycle 1 travels forward are received by the front fender 15. The front fender 15 is disposed in the circumferential direction of the front wheel 3 along the outer periphery of the front wheel tire 7a, and covers the upper rear portion of the front wheel tire 7a from above. The front fender 15 is made of, for example, stainless steel.

On the other hand, the frame body 9 is formed of a plurality of pipes and holds a plurality of members including the front fork 8 and the like. The frame body 9 includes a top tube 19, a down tube 20, a seat tube 21, a seat stay 22 and a chain stay 23.
The top tube 19 is located in the front part of the frame body 9 and extends obliquely upward toward the rear. A front car 24 is disposed in front of the top tube 19, and a front light 25 (front light) is disposed under the front car 24. The top tube 19 is a hollow shaft through which the steering column 13 is inserted.

Further, the down tube 20 extends obliquely downward from the middle portion of the top tube 19 while generally drawing an S shape toward the rear. The down tube 20 is a hollow shaft having a U-shaped cross section, and a plurality of wires such as brake wires (not shown) are arranged therein.
A seat tube 21 is connected to the rear end of the down tube 20, and a crankshaft 26 through which the frame body 9 is inserted in the left-right direction of the electric bicycle 1 is disposed at these connecting portions. The crankshaft 26 is held by the frame body 9 so as to be rotatable around its central axis, and cranks 27 are fixed to both ends thereof. The pair of left and right pedals 11 and 11 are attached to the distal ends of the left crank 27 and the right crank 27, respectively. When the driver depresses the pedal 11 and the crankshaft 26 is rotated in the forward direction (counterclockwise in FIG. 1), a rotational driving force is applied to the rear wheel 4 so that the electric bicycle 1 moves forward. It has become. A cover 28 is fixed to a connecting portion of the down tube 20 and the seat tube 21, and a crank sensor 29 that detects a stepping force when the driver steps on the pedal 11 is disposed inside the cover 28. Yes. As the crank sensor 29, for example, various sensors such as a pressure sensor and a displacement sensor using a magnetostrictive element can be used.

  The seat tube 21 extends obliquely upward from the down tube 20 toward the rear, and a saddle 30 is attached to the upper end of the seat tube 21 so that the height can be adjusted. A battery mounting portion 31 protruding rearward is provided at the upper end portion of the seat tube 21, and a control box 32 containing a control board (not shown) is disposed behind the lower end portion of the seat tube 21. Has been. The battery 33 is disposed along the back surface (rear surface) of the seat tube 21, the lower end thereof is connected to the control box 32, and the upper end thereof is attached to the battery attachment portion 31. The battery 33 is detachably attached to the electric bicycle 1.

Various components such as the electric motor 2, the front light 25, the brake operation detection sensor and crank sensor 29, and a vehicle speed sensor (not shown) are electrically connected to the control box 32. The electric power of the battery 33 is supplied to the electric motor 2 and the like via the control box 32.
Specifically, a plurality of signals from a crank sensor 29, a vehicle speed sensor (not shown), and the like are input to the control box 32, and the control box 32 is supplied from the battery 33 based on these input signals. Electric power is supplied to the electric motor 2. The electric motor 2 can rotationally drive the front wheel 3 by receiving power supplied from the battery 33, and the electric motor 2 to the front wheel 3 has a rotational driving force having a magnitude based on a driver's stepping force or the like. It has come to be given.

Further, power is supplied from the control box 32 to the front light 25 when a light switch (not shown) is turned on in the operation unit 34 attached to the handle 14. The front light 25 is turned on when power is supplied from the battery 33.
The front ends of the seat stay 22 and the chain stay 23 are connected to the upper end and the lower end of the seat tube 21, respectively. Further, the rear ends of the seat stay 22 and the chain stay 23 are respectively connected to a rear wheel shaft 35 that rotatably supports the rear wheel 4. A pair of seat stays 22 and chain stays 23 are provided at intervals in the left-right direction of the electric bicycle 1. The front portion of the rear wheel 4 is disposed between the pair of left and right seat stays 22 and 22 and between the pair of left and right chain stays 23 and 23.

  An arc-shaped rear fender 36 that functions as a so-called mudguard is fixed to the seat stay 22 and the chain stay 23. Scatters such as pebbles scattered from the rear wheel 4 toward the driver when the electric bicycle 1 travels forward are received by the rear fender 36. The rear fender 36 is disposed in the circumferential direction of the rear wheel 4 along the outer periphery of the rear wheel tire 7b, and substantially covers the upper half of the rear wheel tire 7b from above. The front end of the rear fender 36 is located in the vicinity of the control box 32. The rear fender 36 is made of, for example, stainless steel.

  A rear carrier 37 is disposed above the rear fender 36. A tail lamp unit 38 (tail lamp) and a reflecting mirror unit 39 are attached to the rear outside of the rear fender 36. The tail lamp unit 38 is disposed above the reflecting mirror unit 39. The tail lamp unit 38 includes, for example, a resin housing 40 and a lamp 41 disposed in the housing 40. As indicated by a broken line in FIG. 1, an electric wire 42 extending in the longitudinal direction of the rear fender 36 is disposed along the rear fender 36 inside the rear fender 36. The control box 32 and the tail lamp unit 38 are connected by this electric wire 42 so that electric power can be supplied.

  Electric power from the battery 33 is supplied to the lamp 41 via the control box 32 and the electric wire 42. The lamp 41 is turned on in response to power from the battery 33. Specifically, when a light switch (not shown) is turned on in the operation unit 34, the lamp 41 is always lit, and the brake lever 16 is operated with the light switch turned on. Then, the lamp 41 blinks. Thereby, the person behind the electric bicycle 1 can be surely notified of the deceleration or stop of the electric bicycle 1.

  FIG. 2 is a left side view of the rear fender 36 and the configuration related thereto, and shows the rear fender 36 and the electric wire holder 46 in cross section. 3 is a cross-sectional view of the rear fender 36 and the like along the line III-III in FIG. 2, and FIG. 4 is a cross-sectional view of the rear fender 36 and the like along the line IV-IV in FIG. Below, the rear fender 36 and the structure relevant to it are demonstrated concretely.

  The rear fender 36 has an arc shape along the outer periphery of the rear wheel tire 7b in a side view, and a cross-sectional shape orthogonal to the longitudinal direction is a symmetrical shape. More specifically, as shown in FIG. 3, a substantially horizontal horizontal portion 43 is provided at the central portion in the width direction of the rear fender 36, and the horizontal portion 43 is provided at the left and right end portions outward from the horizontal portion 43. A pair of inclined portions 44, 44 extending obliquely downward toward is provided. The horizontal portion 43 and the pair of inclined portions 44 and 44 each extend in an arc shape along the longitudinal direction of the rear fender 36. Each inclined portion 44 is formed integrally with, for example, the horizontal portion 43, and a folded portion 45 that is folded inside the rear fender 36 is provided at the lower end of each inclined portion 44. The folded portion 45 makes the lower end of each inclined portion 44 a smooth shape.

  Further, an electric wire holder 46 extending in the longitudinal direction of the rear fender 36 along the inner side surface 36 a of the rear fender 36 is disposed inside the rear fender 36. The electric wire holder 46 has an arc shape continuous in the longitudinal direction, and faces the inner side surface 36 a of the rear fender 36. The electric wire holder 46 is fixed to the rear fender 36 by a plurality of bolts 47 and nuts 48 (fixing members) and a plurality of rivets 49 (fixing members).

  The middle part of the electric wire 42 excluding both ends is held between the inner side surface 36 a of the rear fender 36 and the outer side surface of the electric wire holder 46. One end 42a of the electric wire 42 enters the tail lamp unit 38, and a connector 50 for connecting the electric wire 42 and the tail lamp unit 38 is provided at the one end 42a. The other end 42b of the electric wire 42 is positioned in front of the rear fender 36 and is electrically connected to the control box 32 (see FIG. 1).

  In the electric bicycle 1, since the electric wire holder 46 has a shape that is continuous in the longitudinal direction, the middle portion of the electric wire 42 can be securely held without being exposed from the electric wire holder 46. Thereby, the middle part of the electric wire 42 can be reliably held between the rear fender 36 and the electric wire holder 46. Moreover, since it can hold | maintain between the rear fender 36 and the electric wire holder 46, without exposing the middle part of the electric wire 42, the middle part of the electric wire 42 can be protected.

  The cross-sectional shape of the electric wire holder 46 orthogonal to the longitudinal direction is a symmetrical shape as shown in FIG. The rear fender 36 and the electric wire holder 46 are aligned at the center in the width direction with respect to the left-right direction of the electric bicycle 1 (left-right direction in FIG. 3). As shown in FIG. 3, the electric wire holder 46 is integrally connected to the substantially horizontal plate-like portion 51 located at the center in the width direction of the electric wire holder 46 and the left and right ends of the plate-like portion 51, respectively. It has a pair of curved parts 52 and 52 which become convex downward. The plate-like portion 51 and the pair of curved portions 52, 52 each extend in an arc shape along the longitudinal direction of the electric wire holder 46. A concave groove 53 recessed downward is formed above each curved portion 52, and each concave groove 53 is provided at a position offset from the center in the width direction of the electric wire holder 46. Each concave groove 53 extends in an arc shape along the longitudinal direction of the electric wire holder 46.

  As shown in FIG. 3, the middle portion of the electric wire 42 is held between the rear fender 36 and the electric wire holder 46 while being accommodated in one concave groove 53. In this electric bicycle 1, since the groove 53 is provided at both ends in the width direction of the electric wire holder 46 that is relatively far from the rear wheel tire 7 b as compared with the center in the width direction of the electric wire holder 46, Interference with the wire holder 46 is prevented.

  As shown in FIG. 2, the plurality of bolts 47, nuts 48, and the plurality of rivets 49 are respectively arranged at a plurality of positions spaced in the longitudinal direction of the rear fender 36. The rear fender 36 is formed with a plurality of fender side insertion holes 54 through which the bolts 47 or the rivets 49 are inserted at intervals in the longitudinal direction. Furthermore, the electric wire holder 46 is formed with a plurality of holder side insertion holes 55 that respectively match the plurality of fender side insertion holes 54 in a state where the electric wire holder 46 is fixed to the rear fender 36.

  As shown in FIGS. 3 and 4, bolts 47 or rivets 49 are inserted into the corresponding fender side insertion holes 54 and holder side insertion holes 55 from the outside to the inside of the rear fender 36. As shown in FIG. 3, the shaft portion of the bolt 47 protrudes inside the electric wire holder 46, and a nut 48 is screwed into the protrusion portion of the shaft portion. Thereby, the rear fender 36 and the electric wire holder 46 are fastened.

  As shown in FIG. 2, on the outside of the front portion of the rear fender 36, the rear fender 36 is fixed to the seat stay 22 (see FIG. 1) and fixed to the chain stay 23 (see FIG. 1). A chain-side mounting member 57 is arranged for this purpose. The seat side mounting member 56 and the chain side mounting member 57 are fastened to the rear fender 36 and the electric wire holder 46 by bolts 47 and nuts 48, respectively. In this electric bicycle 1, the seat-side mounting member 56 and the chain-side mounting member 57 are fixed to the rear fender 36 by using bolts 47 and nuts 48 for fixing the electric wire holder 46 to the rear fender 36. A dedicated fixing member for fixing the member 56 and the chain side attachment member 57 to the rear fender 36 may not be provided, and the number of parts is reduced. Thereby, the component cost of the electric bicycle 1 is reduced.

  Further, as shown in FIG. 4, the shaft portion of the rivet 49 protrudes inside the electric wire holder 46, and the electric wire holder 46 is fixed to the rear fender 36 when the protruding portion of the shaft portion is crushed (caulked). ing. In the electric bicycle 1, the electric wire holder 46 is fixed to the rear fender 36 with the rivet 49. Therefore, when the rear fender 36 and the electric wire holder 46 are handled, the rear fender 36 and the electric wire holder 46 are not separated. 46 can be treated as an integral part. Thereby, the assembly property of the electric bicycle 1 and the handleability of components are improved.

FIG. 5 is an enlarged view of a part of the electric bicycle 1 including the tail lamp unit 38, and shows the rear fender 36 and the electric wire holder 46 in cross section. 6 is a cross-sectional view of the tail lamp unit 38 and the like along the line VI-VI in FIG.
In the rear part of the rear fender 36, a fender side through hole 58 for passing the electric wire 42 from the inside to the outside is formed in the center part in the width direction. The housing 40 of the tail lamp unit 38 is formed with an opening 40 a communicating with the internal space thereof, and the opening 40 a is disposed so as to fit the fender side through hole 58.

  Further, at the rear end portion of the electric wire holder 46, a first through hole 59 for passing the electric wire 42 from the outside to the inside is formed in the curved portion 52 on the side where the electric wire 43 is held, and the horizontal portion 43 Is formed with a second through hole 60 for passing the electric wire 42 from the inside to the outside. The electric wire holder 46 is fixed to the rear fender 36 so that the second through hole 60 coincides with the fender side through hole 58.

  One end 42 a of the electric wire 42 enters the tail lamp unit 38 through the first through hole 59, the second through hole 60, and the fender side through hole 58. A connector 50 provided at one end 42 a of the electric wire 42 is connected to a connector 61 provided inside the tail lamp unit 38. Thereby, the battery 33 (refer FIG. 1) and the tail lamp unit 38 are electrically connected.

  The tail lamp unit 38 is fixed to the rear fender 36 using bolts 47 and nuts 48 (referred to as bolts 47 a and nuts 48 a (electric wire guards)) for fixing the electric wire holder 46 to the rear fender 36. The nut 48 a protrudes from the inner surface of the electric wire holder 46 to the inner side of the electric wire holder 46. The nut 48 is disposed at a position facing the tail lamp unit 38 with the rear fender 36 and the electric wire holder 46 interposed therebetween. More specifically, the nut 48a is in the vicinity of the second through hole 60 inside the electric wire holder 46, and the rotation direction of the rear wheel 4 when the electric bicycle 1 moves forward (the direction indicated by the arrow in FIG. 5). It is arranged on the upstream side.

  As shown in FIG. 5, the reflecting mirror unit 39 is also attached to the rear fender 36 using bolts 47 and nuts 48 (referred to as bolts 47 b and nuts 48 b (electric wire guards)) for fixing the electric wire holder 46 to the rear fender 36. It is fixed. The nut 48 b is disposed at a position facing the reflecting mirror unit 39 with the rear fender 36 and the electric wire holder 46 interposed therebetween. The nut 48b is disposed in the vicinity of the second through hole 60 and further upstream than the nut 48a in the rotational direction of the rear wheel 4 when the electric bicycle 1 moves forward.

  As described above, in the present embodiment, by holding the middle part of the electric wire 42 between the rear fender 36 and the electric wire holder 46, the middle part of the electric wire 42 can be protected from the scattered matter from the rear wheels such as pebbles. it can. Further, the nut 48a as a fixing member is arranged in the vicinity of the second through hole 60 on the inner side of the electric wire holder 46 and upstream of the rear wheel 4 in the forward direction of the electric bicycle 1, and functions as an electric wire guard. Therefore, a portion of the electric wire 42 exposed from the electric wire holder 46 (a part of the electric wire 42 positioned in the vicinity of the tail lamp unit 38) can be guarded by the nut 48a. In other words, scattered objects (see FIG. 5) from the rear wheel such as pebbles flying toward the exposed portion can be received by the nut 48a to protect the exposed portion.

Since the nut 48a is a member that is inevitably provided for fixing the electric wire holder 46 to the rear fender 36, the functioning of the nut 48a as an electric wire guard does not involve adding new parts or increasing the number of assembling steps. In addition, the electric wire 42 can be protected.
Furthermore, in this embodiment, the nut 48b is disposed on the upstream side of the nut 48a, and this nut 48b functions as an electric wire guard, so that the exposed portion can be more reliably protected.

  Although the embodiments of the present invention have been described above, the present invention is not limited to the contents of the above-described embodiments, and various modifications can be made within the scope of the claims. For example, in the above-described embodiment, the case where the nut 48 is made to function as the wire guard among the bolt 47 and the nut 48 for fixing the wire holder 46 to the rear fender 36 is not limited to this, but the bolt 47 (for example, The head of the bolt 47) may function as an electric wire guard. Further, the rivet 49 may function as an electric wire guard.

In the above-described embodiment, the case where the bolt 47, the nut 48, and the rivet 49 are fixing members has been described. However, the fixing member is not limited to the bolt 47, the nut 48, and the rivet 49, and other members may be used. .
Furthermore, in the above-described embodiment, the case where the two nuts 48 functioning as the wire guard are provided has been described. However, the number of wire guards is not limited to two, and may be one, or three or more. There may be. In addition, various design changes can be made within the scope of matters described in the claims.

1 is a left side view of an electric bicycle according to an embodiment of the present invention. It is a left view of a rear fender and the structure relevant to it. FIG. 3 is a cross-sectional view of a rear fender and the like along the line III-III in FIG. 2. It is sectional drawing, such as a rear fender along the IV-IV line in FIG. It is an enlarged view of a part of an electric bicycle including a tail lamp unit. FIG. 6 is a cross-sectional view of a tail lamp unit and the like along the line VI-VI in FIG. 5.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Electric bicycle 2 Electric motor 4 Rear wheel 36 Rear fender 36a Inner side surface (inner side surface of rear fender)
38 Tail lamp unit 41 Lamp 42 Electric wire 42a One end (one end of electric wire)
46 Electric wire holder 47 Bolt (fixing member)
48 Nut (fixing member)
48a Nut (electric wire guard)
48b Nut (electric wire guard)
49 Rivet (fixing member)
53 Groove

Claims (4)

An electric bicycle that assists driving force by an electric motor,
Above the rear wheel, an arc-shaped rear fender disposed along the outer periphery of the rear wheel;
A lamp is disposed in the internal space, and a tail lamp unit disposed outside the rear part of the rear fender,
An electric wire arranged in the longitudinal direction of the rear fender along the inner side surface of the rear fender, one end of which enters the tail lamp unit, and supplies electric power to the tail lamp unit;
An arc-shaped electric wire holder that is arranged in the longitudinal direction of the rear fender along the inner side surface of the rear fender, and holds the electric wires facing the inner side of the rear fender;
A plurality of fixing members for fixing the electric wire holder to the rear fender,
At least one fixing member is provided in the vicinity of the tail lamp unit mounting position and on the upstream side of the tail lamp unit as viewed in the direction of rotation of the rear wheel when moving forward, and enters the tail lamp unit inside the rear fender. An electric bicycle comprising an electric wire guard raised on the upstream side of one end of the electric wire.   The electric motor according to claim 1, wherein the fixing member provided on the upstream side of the tail lamp unit includes a bolt and a nut, and the nut is inside the rear fender and serves as the wire guard. bicycle.   3. The electric bicycle according to claim 1, wherein the electric wire holder has a concave groove extending in a longitudinal direction thereof and accommodating the electric wire at a position deviated from a center in a width direction thereof.   The electric bicycle according to claim 1, wherein some of the plurality of fixing members include rivets.

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