JPS623026B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in a power generation device for a vehicle such as a bicycle, and in particular, in a device in which an external rotary dynamo that generates power by press-contacting the tread surface of a tire is attached to the vehicle body, a mudguard of the dynamo is installed. , the dynamo is sandwiched between a pair of left and right arms that pivotally support the dynamo, thereby improving ease of assembly.

Hereinafter, the power generator for a vehicle of the present invention will be described according to an embodiment shown in the drawings. Reference numeral 1 indicates an upper mounting member having a lower opposing surface 2; 3 indicates an upper mounting member having an upper opposing surface 4 facing the lower opposing surface 2; The lower mounting member has left and right hanging pieces 5, 5', and each of the upper and lower mounting members 1, 3 has a concave hole formed on both sides thereof toward the lower facing surface 2 and the upper facing surface 4. This upper mounting member 1 has a through hole 8 passing through a tightening screw 7 that vertically fastens the upper and lower mounting members 1 and 3.
In addition, tightening holes 9 are formed in each of the lower mounting members 3.

Reference numeral 10 denotes an external rotary dynamo, and the external rotary dynamo 10 has a cylindrical shape and includes a stator 12 having a pair of mounting rods 11, 11 for attachment in the left and right axial direction of the center, and an outer periphery of the stator 12 coaxially arranged. It consists of a rotor 13 which generates electricity by being covered and rotated, and furthermore, a pair of knurlings 14 and 14' are carved on the outer periphery of the rotor 13 so as to be mutually inclined with respect to the direction of rotation.

Reference numerals 15 and 15' designate a pair of right and left arms that jointly pivotally support the external rotary dynamo 10 on the lower mounting member 3;
5 and the left arm 15' each have a shaft support hole 1 above them.
6, 16', screwed bosses 18, 18', apertures 19, 19' extending upwardly from the shaft support pieces 17, 17', and the shaft support. Arms 20, 20' extending downward from the pieces 17, 17', dynamo fixing holes 21, 21 bored at the lower tips of the arms 20, 20', and dynamo fixing holes 21, 21' It consists of cap parts 22, 22' protruding around the periphery of the cap, which are integrally molded from synthetic resin or aluminum die-casting.

A mudguard 23 is interposed between the right arm 15 and the left arm 15'. Arm 1
5 and a screw retaining piece 26 rotating between the left arm 15' and the left arm 15'.

Then, the pair of mounting rods 11, 11' of the external rotary dynamo 10 are passed through the dynamo fixing holes 21, 21' of the left and right arms 15, 15', and both sides 27, 27' of the cover 25 of the mudguard 23 are inserted. Pivot support piece 1 of the right arm 15 and left arm 15'
The shaft support pieces 17, 17' and the screw-fastening bosses 1 are locked by engaging the step portions 28, 28' drilled from 7, 17' to the screw-fastening bosses 18, 18'.
A gap 59 formed above the pair of right arm 15 and left arm 15' by the contact portions 19 and 19' is covered with the lid 25 of the mudguard 23, and the right arm 15 is secured with a screw. These left and right arms 15,
15' and the mudguard 23 are integrated. 30 is a decorative nut for fixing one side 11' of the mounting rod, 31 is a cap support plate for supporting the lead wire 34, 32 is a hexagonal nut for fixing the other side 11 of the mounting rod, and 33 is the cap support plate 31.
The lead wire 3 from the stator 12 is
4.

35 is the gap 5 at the bottom of the lower mounting member 3
A rotation shaft 36 is located within the rotation shaft 3 and swingably supports the left and right arms 15, 15'.
located within the gap 59 by winding it around 5;
Further, one end 37 of the external rotary dynamo 10 is locked to the lower part of the lower mounting member 3 and the other end 38 is locked to the screw boss 18.
a main coil spring that biases in one direction, 39
is a latching portion 39' that supports the lead wire 34.
A lead wire locking plate 40 is a rotation shaft fixing nut, and the rotation shaft 35 is connected to the left arm 15' through a shaft hole 41' drilled in the left hanging piece 5' of the lower mounting member 3. shaft support hole 16', main coil spring 36,
The rotation shaft fixing nut 40 is inserted through the shaft support hole 16 of the right arm 15, the shaft hole 41 drilled in the right hanging piece 5, and further through the shaft hole 39' of the lead wire locking plate 39.
By tightening and fixing the lower mounting member 3 to
The left and right arms 15, 15' are rotatably attached to the.

Reference numeral 42 denotes a tilting member that raises and lowers the external rotary dynamo 10 by controlling the swinging of the right arm 15 and left arm 15';
are the left and right hanging pieces 5, 5' of the lower mounting member 3.
A shaft portion 44 that penetrates lever insertion holes 43, 43' drilled in the lever and is rotatably supported, and a cam locking portion 45 with a hexagonal cross section provided on one side of the shaft portion 44.
and a tilting lever 47 having a lever portion 46 formed by bending the other shaft portion 44 at right angles, and an eel ring for preventing the tilting lever 47 from coming off from the hanging pieces 5, 5'. 48, and a hexagonal through hole 49 that fits and locks into the cam locking portion 45 of the shaft portion 44.
a cam 50 which is wound around the cam locking part 45 and has one end 51 hooked to the cam 50 and the other end 52 hooked to a hole 53 drilled in the hanging piece 5 of the lower mounting member 3; It consists of an auxiliary coil spring 54 that is fixed and locked. A locking portion 55 for locking the working end 50' of the cam 50 is recessed in the contact portion 19 of the right arm 15.
Normally, the cam 50 is brought into contact with the locking portion 55 of the right arm 15 due to the elastic force of the auxiliary coil spring 54. In this embodiment, the locking part is recessed around the right arm, but
Depending on the contact position of the cam, the area around the left arm,
Alternatively, it goes without saying that it may be provided around both the left and right arms.

An external rotary dynamo 10 is installed at a position facing the tread surface 57 of the tire 56 of the vehicle body such as a bicycle.
The upper mounting member 1 is interposed from above and the lower mounting member 3 is interposed from below between the pair of left and right backhawks 58, 58' of the vehicle body so that the outer circumferential surfaces of the upper and lower mounting members 1 are located. , 3 on both sides of the recessed portions 6, 6' of the left and right back hawks 58, 5.
8' and are tightened and fixed with tightening screws 7, thereby attaching the vehicle power generator of the present invention to the bicycle body.

At normal times, the cam 50 of the tilting lever 47 is activated by the elastic force of the auxiliary coil spring 54.
5, the external rotary dynamo 10, which is pivotally supported by the left and right arms 15, 15', is kept in its upright position away from the tire tread surface 57.

Further, when the lever portion 46 of the tilting lever 47 is rotated by hand, the cam 50 rotates against the elastic force of the auxiliary coil spring 54, and the locking portion 55
As a result, the pair of right arm 15 and left arm 15' swing in the direction in which the external rotary dynamo 10 comes into pressure contact with the tire tread surface 57 due to the elastic force of the main coil spring 36.
Therefore, the external rotary dynamo 10 is kept in an inverted position by pressing against the tire tread surface 57, and at this time, mud and sewage are scattered from the pressure contact area between the tire tread surface 57 and the knurling surfaces 14 and 14' of the rotor 13. etc. are caught by the mudguard, and the cover 25 prevents dirt and the like from entering the gap 59.

The vehicle power generation device of the present invention is constructed as described above, and in particular, a pair of right and left arms are swingably supported on a mounting member to a vehicle, and the lower portions of the pair of right and left arms are attached to the lower portions of the right and left arms. An external rotary dynamo that rotates in pressure contact with the tire tread surface of the vehicle is rotatably supported, and the dynamo is rotatably supported on the upper portions of the pair of right and left arms. A gap containing a spring biased in the direction of pressure contact is provided between the gap and the dynamo, and between the right arm and the left arm, the mudguard of the dynamo is installed between the right arm and the left arm. Since the mudguards are sandwiched between the two arms, the mudguard can be attached at the same time as the pair of right and left arms that pivotally support the external rotary dynamo, greatly improving assembly work efficiency and significantly reducing the manufacturing process. This can be reduced to Furthermore, according to the present invention, since the mudguard is integrally provided with a cover that covers the gap in which the spring that biases the dynamo in the direction of pressing the dynamo into contact with the tread surface of the tire is stored, there is no possibility of dust or other debris being stored in the gap. Therefore, it is possible to obtain a power generation device for a vehicle that has a good elastic force over a long period of time without being trapped by particles.

[Brief explanation of the drawing]

The drawings all show one embodiment of the vehicle power generation device of the present invention, and FIG. 1 is a perspective view of the main part showing a state where it is attached to a backhawk on the body of a bicycle, FIG. 2 is a partially cutaway front view, and FIG. 3 is a partially cutaway front view. is a back view, Figure 4 is a side view,
FIG. 5 is a side sectional view, and FIG. 6 is an exploded perspective view. 1...Upper mounting member, 3...Lower mounting member,
6, 6'... Recessed fitting part, 10... External rotating dynamo, 15... Right arm, 15'... Left arm, 2
3...mudguard, 55...locking portion, 42...tilting member.

Claims (1)

[Claims] 1. A right arm and a left arm are swingably supported on a mounting member to a vehicle so as to face each other, and the lower part of the right arm and left arm is pressed against the tire tread surface of the vehicle and rotates. A rotary dynamo is rotatably supported, and a spring is provided between the right arm and the left arm and between them to bias the dynamo in a direction that presses the dynamo against the tire tread surface. A mudguard for the dynamo is fastened between the right arm and the left arm so that they are integrated, and the mudguard has a mudguard that covers the rear part of the dynamo, and a space between the dynamo and the spring. 1. A power generation device for a vehicle, characterized in that a cover is located at the top.