JP2012006583A - Auxiliary power unit - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a simple auxiliary power unit capable of efficiently outputting power by allowing a magnet or the like to be in a reciprocal piston motion by using the interaction of an electromagnetic force between a current flowing in a coil and the magnet or the like.SOLUTION: The auxiliary power unit includes a reciprocally operating unit 110, a rotary unit 120 and a power source unit 130. The reciprocally operating unit includes a cylinder 111, a coil 112 wound around the cylinder, a moving piece 113 constituted of a magnet or a magnetic body reciprocating in the cylinder, a first output shaft 115 which is slidably supported by one end face of the cylinder and connected to one end face of the moving piece, and a second output shaft 117 which is slidably supported by the other end face of the cylinder and connected to the other end face of the moving piece. The rotary unit 120 includes a crank shaft 122 which is rotatably supported between bearings, a connecting rod 123 connected to a crank pin of the crank shaft and the first output shaft 115, a rotational drive switch unit 124 for intermittently repeating the supply and the interruption of the current from the power source unit 130 to the coil 112 in conjunction with the rotation of the crank shaft, and a starting lever 125 for starting the crank shaft 122.

Description

  The present invention uses an interaction between an electromagnetic force generated between a current flowing in a coil wound around a cylinder and a moving element made of a magnet or a magnetic material arranged in the cylinder, and the moving element is moved in a reciprocating piston in the cylinder. The present invention relates to an auxiliary power device that can be moved and converted into a rotational force to extract power.

  Conventionally, an electric motor is known as a power unit. The electric motor includes a rotor (rotor) that rotates around an axis, and a stator (stator) that interacts with the rotor and generates a rotational moment. When an electric current flows through a coil wound around the rotor, The electromagnetic force is generated by the interaction with the magnet arranged on the stator, and the rotor is rotated by the electromagnetic force, and the rotational force is output as power. As for the electric motor, those disclosed in, for example, JP-A-5-176509 and JP-A-6-36373 are known.

  On the other hand, an example in which such an electric motor is used in a drive device for an electric assist bicycle is disclosed in, for example, Japanese Patent Application Laid-Open No. 2007-327569.

JP-A-5-176509 Japanese Utility Model Publication No. 6-36373 JP 2007-327469 A

  However, in any of the above examples, the rotational motion of the rotor with respect to the stator is output as power. However, the problem is that the entire device is bulky, a large amount of power is consumed, a large capacity battery is required, and efficient. However, there is a problem that power cannot be taken out.

  The present invention has been made in view of the above problems, and utilizes the interaction of electromagnetic force generated between a current flowing in a coil wound around a cylinder and a mover made of a magnet or a magnetic material arranged in the cylinder. Thus, it is an object of the present invention to provide a simple auxiliary power device capable of causing a reciprocating piston motion in a cylinder while an electric current is intermittently supplied and efficiently outputting the reciprocating piston motion as power.

  It is another object of the present invention to provide an auxiliary power device that can efficiently extract power in synchronism with the timing of stepping on a pedal.

  Furthermore, an object of the present invention is to provide an auxiliary power device that can start a moving element to cause a reciprocating piston motion in a cylinder and efficiently output the reciprocating piston motion as power.

In order to solve the above problems, an auxiliary power device according to the present invention includes a reciprocating operation unit, a rotation unit, and a power supply unit,
The reciprocating operation unit includes a cylindrical cylinder, a coil wound around the cylinder, a mover made of a magnet or a magnetic material that reciprocates in the cylinder, and one of the movers supported slidably on one end surface of the cylinder. A first output shaft coupled to the end surface of the cylinder, and a second output shaft slidably supported on the other end surface of the cylinder and coupled to the other end surface of the moving element,
The rotating portion includes a crankshaft rotatably supported between a pair of bearings, a connecting pin connected to a crankpin of the crankshaft and the first output shaft, and a power supply portion to a coil in conjunction with rotation of the crankshaft. The main feature is that it has a rotation drive switch section that intermittently repeats supply and interruption of current and reciprocates the moving element in the cylinder, and a start lever that starts the crankshaft.

  The auxiliary power unit according to the present invention has a second feature that the reciprocating operation unit, the rotating unit, and the power source unit are integrally attached to the bicycle frame, and the bicycle pedal is rotatably connected to the start lever. .

  In the auxiliary power unit according to the present invention, the rotational drive switch unit is set to be turned on and off in synchronization with the timing of depressing the pedal of the bicycle, and the current from the power source unit is intermittently supplied to the coil. The third feature.

The auxiliary power device according to the present invention includes a reciprocating operation unit, a rotating unit, a power source unit, and a starting unit,
The reciprocating operation unit includes a cylindrical cylinder, a primary coil wound around the cylinder, a mover made of a magnet or a magnetic material that reciprocates in the cylinder, and is slidably supported on one end surface of the cylinder. A first output shaft coupled to one end surface, and a second output shaft slidably supported on the other end surface of the cylinder and coupled to the other end surface of the moving element;
The rotating portion includes a crankshaft rotatably supported between a pair of bearings, a connecting pin connected to the crankpin of the crankshaft and the first output shaft, and the power supply portion to the primary coil in conjunction with the rotation of the crankshaft. The current supply and cut-off are intermittently repeated, and a rotary drive switch that reciprocates the moving element in the cylinder is provided.
The starting part has a secondary coil wound around the cylinder, and a start switch part for temporarily supplying a current from the power source part to the secondary coil to start the moving element in the cylinder. Features.

The auxiliary power device according to the present invention includes a reciprocating operation unit, a rotating unit, a power source unit, and a starting unit,
The reciprocating operation unit is supported by a cylindrical cylinder, a pair of left and right coils wound around the cylinder, a mover made of a magnet or a magnetic material that reciprocates in the cylinder, and slidably supported on one end surface of the cylinder. Having an output shaft connected to one end face of the child;
The rotating portion includes a crankshaft rotatably supported between a pair of bearings, a connecting rod connected to a crankpin of the crankshaft and an output shaft, and a current from the power supply portion to each coil in conjunction with the rotation of the crankshaft. A fifth feature is that it has a rotation drive switch section that intermittently repeats the supply and shut-off, and reciprocates the moving element in the cylinder.

  As described above, according to the auxiliary power unit of the present invention, the current flowing in the coil wound around the cylinder and the current flowing in the coil are arranged in the cylinder by the action of the rotary drive switch that operates in conjunction with the rotating crankshaft. The reciprocating piston movement of the moving element in the cylinder is continuously utilized as an auxiliary power by utilizing the electromagnetic force generated between the moving element made of a magnet or a magnetic material. There is an excellent effect that it can be used.

  The auxiliary power unit according to the present invention only needs to start the crankshaft by the start lever and then supply a small amount of current to the coil as power for continuously moving the moving element in the reciprocating piston. In addition, by intermittently repeating current supply and interruption by the switch unit, the moving element is continuously reciprocated by a reciprocating piston, so that the power consumption is extremely small and the energy saving effect is high. Moreover, there exists an effect that the whole apparatus can be reduced in size.

  Furthermore, by installing such an auxiliary power device on an assist bicycle, a large-capacity battery is not required, and a light and inexpensive assist bicycle can be realized compared to a conventional electric assist bicycle.

  In addition, the auxiliary power device according to the present invention has an excellent effect that the start lever is eliminated and the auxiliary power can be taken out more efficiently by adopting a configuration in which the start portion having the secondary coil and the start switch portion is provided. Play.

The top view of the auxiliary power unit which shows 1st Embodiment of this invention, The side view of the auxiliary power unit shown in FIG. The figure which shows the effect | action of the auxiliary power unit shown in FIG. The figure which shows the effect | action of the auxiliary power unit shown in FIG. The figure which shows the effect | action of the auxiliary power unit shown in FIG. The figure which shows the effect | action of the auxiliary power unit shown in FIG. The figure which shows the example which installed the auxiliary power apparatus shown in FIG. 1 in the electrically assisted bicycle, The top view of the auxiliary power unit which shows 2nd Embodiment of this invention, (A) is a side view of a rotation drive switch part in the auxiliary power unit of FIG. 8, (B) is a front view thereof, and (C) is a front view of a rotor. The top view of the auxiliary | assistant apparatus which shows 3rd Embodiment of this invention, (A) is a side view of the rotation drive switch unit, (B) is a side view of the rotation drive switch unit in the reverse direction, (A) is a side view of the start switch unit, (B) is a rear view thereof, The figure which shows the effect | action of the auxiliary power unit shown in FIG. The figure which shows the effect | action of the auxiliary power unit shown in FIG. The figure which shows the effect | action of the auxiliary power unit shown in FIG. It is a side view of the auxiliary | assistant apparatus which shows 4th Embodiment of this invention.

  The best mode for carrying out the present invention will be described with reference to the drawings. 1 to 7 show a first embodiment of an auxiliary power unit according to the present invention. In the figure, reference numeral 100 denotes an auxiliary power device according to the present invention.

  As shown in FIGS. 1 and 2, the auxiliary power device 100 has a basic configuration including a reciprocating operation unit 110, a rotation unit 120, and a power supply unit 130.

  The reciprocating operation unit 110 includes a cylindrical cylinder 111 supported on one side of the upper surface of the support base 101 via a support unit 101a, a coil 112 wound around the outer surface of the cylinder 111 within a predetermined width L, A moving element 113 made of a magnet that reciprocates in the longitudinal direction in the cylinder 111, a first output shaft 115 slidably supported back and forth by a bearing 114 disposed at one end of both ends of the cylinder 111, The second output shaft 117 is slidably supported back and forth by a bearing 116 disposed at the other end of both ends.

  The movable element 113 has a range in which the movable section M exceeds the winding section L of the coil 112 on both sides (specifically, M = L + B + 2A: where B is the width of the movable element 113, A is the width of the movable element 113, and A is the cylinder 111. The distance from the moving element 113 to the closest end of the coil 112 when the two ends of the coil 112 are closest to each other), and from the vicinity of the inlet of the coil 112 into the coil 112 at the timing of operation (ON) of the rotary drive switch unit 124. It is set to enter. One end 115a of the first output shaft 115 is connected to one end surface 113A of both end surfaces of the mover 113, and one end 117a of the second output shaft 117 is connected to the other end surface 113B of the mover 113.

  The rotating part 120 is connected between a crank shaft 122 in which a rotating shaft 122A is rotatably supported between a pair of left and right bearings 121, 121, a crank pin 122B of the crank shaft 122, and the other end 115b of the first output shaft 115. The connecting rod 123, the rotation drive switch unit 124 coaxially connected to the rotating shaft 122 </ b> A of the crankshaft 122 positioned inside the one bearing 121, and the crankshaft 122 positioned outside the other bearing 121. And a starting lever 125 having a base end connected coaxially to the rotating shaft 122A. The other end 115b of the first output shaft 115 and the connecting rod 123 are connected to each other via a connecting pin 115c so as to be bent. The start lever 125 serves to start the crankshaft 122.

  In conjunction with the rotation of the crankshaft 122, the rotation drive switch unit 124 intermittently repeats supply and interruption of current from the power supply unit 130 to the coil 112 of the cylinder 111 via the wiring 131 at a certain timing. The movable element 113 is continuously reciprocated, and includes a rotor 124A that rotates around the rotation shaft 122A and a pair of contact brushes 124B and 124B that are positioned before and after the rotor 124A. A pair of electrode plates 124C and 124C are provided at positions 180.degree.

  When the pair of electrode plates 124C and 124C simultaneously contact the contact brushes 124B and 124B during the rotation of the rotor 124A, the rotation drive switch unit 124 operates (turns on) during the rotation of the rotor 124A. Then, when the current from the power supply unit 130 is supplied to the coil 112 and the pair of electrode plates 124C and 124C are separated from the contact brushes 124B and 124B, the rotation drive switch unit 124 is stopped (turned off), and the energization is interrupted during that time. The current from the power supply unit 130 to the coil 112 is cut off.

  The power supply unit 130 supplies current to the coil 112, and the plus side is connected to one end of the coil 112 via the wiring 131 and the minus side is connected to the other end of the coil 112. A power switch 132 and a variable resistor 133 are arranged in series in the middle of the wiring 131. Note that since the power consumption is extremely small and the consumption of electricity is small, a dry battery or a small battery of about 1.5 V can be used for the power supply unit 130.

  3 to 6 show that in the auxiliary power unit 100 configured as described above, the moving element 113 in the cylinder 111 is continuously reciprocated by a reciprocating piston movement based on the rotation drive switch unit 124 that operates in conjunction with the rotation of the crankshaft 122. It shows how it is.

  First, the crankshaft 122 is started (turned) by manually turning the start lever 125 shown in FIG. 1 counterclockwise in FIG. As shown in FIG. 3, when the crankshaft 122 is started and the crankpin 122B exceeds 90 degrees counterclockwise from the top dead center, the electrode plates 124C and 124C of the rotary drive switch section 124 are in contact with each other. Simultaneously contacting the brushes 124 </ b> B and 124 </ b> B, the rotation drive switch unit 124 is activated (turned on), and the current from the power supply unit 130 is supplied to the coil 112.

  At this time, the mover 113 is located near the entrance of the coil 112 (in FIG. 3, it is located near the left entrance of the coil 112, the end face of the mover 113 near the coil 112 is the S pole, and the opposite end face is N. 3 so that the mover 113 enters the coil 112 by the action of electromagnetic force generated by the interaction between the coil 112 and the mover (magnet) 113 when a current flows through the coil 112. Pulled to the right.

  Next, as shown in FIG. 4, when the crank pin 122B of the crankshaft 122 approaches the bottom dead center, the electrode plates 124C and 124C of the rotary drive switch section 124 are separated from the contact brushes 124B and 124B. The rotation drive switch unit 124 is stopped (turned off), and the current supply from the power source unit 130 is cut off. Since an inertial force is acting on the crankshaft 112 and the mover 113, the crankshaft 122 rotates counterclockwise from the bottom dead center toward the top dead center by the inertial force, and the mover 113 is moved to the coil 112. It moves from the inside to the outside in the right direction in FIG.

  Next, as shown in FIG. 5, when the crank pin 122B of the crankshaft 122 exceeds 90 degrees past the bottom dead center, the electrode plates 124C and 124C of the rotary drive switch section 124 are contacted with the contact brush 124B, The rotation drive switch unit 124 is actuated (turned on) once again in contact with 124 B, and the current from the power supply unit 130 is supplied to the coil 112. At the same time, the left side of FIG. 5 is such that the mover 113 near the entrance of the coil 112 reenters the coil 112 due to the electromagnetic force generated by the interaction between the coil 112 and the mover 113 due to the current flowing through the coil 112. Pulled in the direction.

  Next, as shown in FIG. 6, when the crank pin 122B of the crankshaft 122 approaches top dead center, the electrode plates 124C and 124C of the rotary drive switch section 124 are separated from the contact brushes 124B and 124B in the middle. Thus, the switch unit 124 is stopped, and the current supply from the power supply unit 130 is interrupted. Since an inertial force is acting on the crankshaft 112 and the moving element 113, the crankshaft 122 is rotated counterclockwise by the inertial force so that the crankpin 122B moves toward the top dead center and exceeds the top dead center. The child 113 moves in the coil 112 to the left in FIG.

  Thus, according to the auxiliary power unit 100 of the present invention, the operation timing of the rotary drive switch unit 124 that intermittently turns on and off in conjunction with the rotation of the crankshaft 122, and the moving element that enters the coil 112 By synchronizing with the timing of 113, an electromagnetic force for reciprocating the moving element 113 in the cylinder 111 is intermittently applied to the moving element 113, thereby continuously moving the moving element 113 in the cylinder 111 to reciprocating piston motion. Then, the crankshaft 122, and hence the rotating shaft 122A, can be continuously rotated (counterclockwise) to extract power.

  FIG. 7 shows an example in which the auxiliary power device 100 of the present invention is installed on a bicycle frame 150.

  As shown in FIG. 7, one pedal 151 on which the driver's foot is put is rotatably connected to the free end of the start lever 125 connected to one end of the rotating shaft 122A, and the other end of the rotating shaft 122A is started. An auxiliary lever 152 is connected to the lever 125 in the opposite direction 180 degrees. On the free end of the auxiliary lever 152, the other pedal 153 on which the driver's foot is placed is rotatably connected. The reciprocating operation unit 110 may be arranged to stand along the frame 150 toward a saddle unit (not shown).

  According to the auxiliary power unit 100 shown in FIG. 7, when the driver first turns on the power switch 132 of the power supply unit 130 and turns the crankshaft 122 by pushing the pedals 151 and 153, as shown in FIG. In synchronism with the timing when the driver depresses the pedal 153 strongly, the rotation drive switch unit 124 is operated, current is supplied to the coil 112, and the electromagnetic force acting on the moving element (magnet) 113 is depressed by the driver 153. Pulling the moving element 113 to assist the operation, and as shown in FIG. 5, the rotational drive switch unit 124 is actuated again in synchronization with the timing when the pedal 153 is lifted (also timing when the pedal 151 is strongly depressed), An electric current is supplied to the coil 112, and the electromagnetic force acting on the moving element (magnet) 113 assists the driver to depress the pedal 151. Pulling the sea urchin mover 113. As a result, the moving element 113 continuously performs the reciprocating piston movement so as to always assist the driver to step on the left and right pedals 153 and 151.

  As described above, the reciprocating piston motion generated in the moving element 113 is converted from the first output shaft 115 to the rotational motion of the crankshaft 122 and used as auxiliary power when the driver runs the pedals 151 and 153. Thereby, compared with the conventional electrically assisted bicycle, a lighter, more compact and simple assist bicycle with an auxiliary power device can be realized at low cost.

  8 and 9 show a second embodiment of the auxiliary power unit of the present invention. In FIG. 8, reference numeral 200 indicates the auxiliary power unit. The same members as those in FIG. 2 are denoted by the same reference numerals and description thereof is omitted.

  An auxiliary power unit 200 shown in FIG. 8 includes a pair of contact brushes 124B 'and one electrode plate 124C' for the rotor 124A 'in the rotation drive switch unit 124'. While the crankshaft 122 makes a round around the rotating shaft 122A, the pair of contact brushes 124B 'contacts the electrode plate 124C' only once, and current flows from the electrode portion 130 to the coil 112. When a current flows through the coil 112, an electromagnetic force acts on the mover (magnet) 113 that has entered the coil 112 so as to lift the mover 113 upward in FIG.

  When the crankshaft 122 is first manually rotated counterclockwise in this manner, an electric current flows through the coil 112 due to the operation of the rotation drive switch 124 ′, and the moving element 113 in the cylinder 111 is lifted upward. When the switch portion 124 ′ is stopped, the current to the coil 112 is cut off and the mover 113 is lowered by its own weight, and the mover in the cylinder 111 is repeatedly operated and stopped by the rotation drive switch portion 124 ′ interlocked with the crankshaft 122. 113 reciprocates the piston up and down. The reciprocating piston movement of the moving element 113 is output to the outside from the second output shaft 117 and is applied to sewing work of a sewing needle, for example.

  FIGS. 10 to 15 show a third embodiment of the auxiliary power unit of the present invention, which is devised to generate a starting force of a rotational driving force on the crankshaft 122 using a secondary coil. . In the figure, reference numeral 300 indicates an auxiliary power unit. The same members as those of the above-described auxiliary power unit are denoted by the same reference numerals, and the description thereof is omitted.

  As shown in FIG. 10, the auxiliary power unit 300 is rotationally driven for rotational driving in the reverse direction (clockwise) adjacent to the rotational driving switch 124 for rotational driving in the forward direction (counterclockwise). A switch unit 126 is provided. As shown in FIG. 11B, the rotation drive switch unit 126 includes a rotor 126A that rotates about the same rotation axis 122A as the rotation drive switch unit 124, and a pair of contact brushes 126B that are positioned before and after the rotor 126A. , 126B, and a pair of electrode plates 126C, 126C are provided at 180 ° symmetrical positions on the rotation surface of the rotor 126A. The electrode plates 126C and 126C are arranged so as to contact (switch ON) each contact brush 126B at a timing when the crankshaft 122 rises in the reverse direction (clockwise) from the horizontal position (see FIG. 15).

  Further, in the auxiliary power unit 300 shown in FIG. 10, a pair of left and right secondary coils 301L and 301R are wound with a predetermined width outside the primary coil 112 wound around the outer surface of the cylinder 111 at a predetermined interval. FIG. 10 shows that the primary coil 112 and the secondary coils 301L and 301R are separately wound outside the cylinder 111 for easy understanding. Both the secondary coils 301L and 301R serve to generate a starting force in the movable element 113 when a current flows at a predetermined timing.

  On the opposite side of the rotary shaft 122A to the two rotation drive switch units 124 and 126, an activation switch unit 302 is provided for flowing current to the secondary coils 301L and 301R at a predetermined timing. As shown in FIGS. 12A and 12B, the activation switch unit 302 includes a pair of contact brushes including a rotor 302A that rotates about the rotation shaft 122A and a pair of contact brushes that are respectively positioned before and after the rotor 302A. Units 302B and 302C are provided, and one electrode plate 302D is provided on the rotating surface of the rotor 302A. As shown in FIG. 13A, the electrode plate 302D comes into contact with one of the contact brush units 302B at the timing when the crankshaft 122 is lowered in the forward rotation direction (counterclockwise) from the horizontal position (switch ON), Further, as shown in FIG. 14, the crankshaft 122 comes into contact with the other contact brush unit 302C (switch ON) at the timing when the crankshaft 122 rises in the forward rotation direction from the horizontal position. That is, the rotational drive of the crankshaft 122 in the forward rotation direction can be activated from two positions.

  One rotation changeover switch 303 is provided between the wiring 131 connected to the terminal end of the primary coil 112 and the wiring 131 connected to the contact brushes 124B and 126B of the both rotation drive switch units 124 and 126. Further, the wiring 131 ′ branches off from the middle of the wiring 131 that connects the power supply unit 130 and the starting end of the primary coil 112, and one activation switch 304 is provided. The start switch 304 and one of the contact brush units 302B and 302C of the start switch unit 302 are connected in parallel by a wiring 131 ′ (between A ′ and A ′ in FIG. 10, C ′. -C ').

  Furthermore, the start ends of the secondary coils 301L and 301R and the other contact brushes of the contact brush units 302B and 302C of the activation switch section 302 are directly connected by wires 131 ′ (A- in FIG. 10). Between A and CC). Similarly, the other ends of the secondary coils 301L and 301R and the wiring 131 on the upstream side of the power supply unit 130 are connected in parallel by a wiring 131 ′ (between BB and DD in FIG. 10). ).

  Next, the operation of the auxiliary power unit 300 having the above configuration will be described.

  First, the power switch 132 is turned on, and the rotation switch 303 is switched to the forward drive side (left). Next, the crankshaft 122 is rotated counterclockwise to further tilt from a horizontal position (FIG. 13A), where the electrode plate 302D starts to contact the contact brush unit 302B of the activation switch unit 302. Position). When the activation switch 304 is pressed at this position, a current indicated by an arrow flows through the right secondary coil 301R via the contact brush unit 302B. At this time, as shown in FIG. 13A, the mover 113 is positioned in front of the entrance of the secondary coil 301R, and current flows through the secondary coil 301R, so that the end face (S pole) of the mover 113 and Due to the electromagnetic force generated by the interaction with the end face (N pole) of the secondary coil 301R, the moving element 113 is pulled rightward so as to enter the secondary coil 301R, and the crankshaft 122 moves forward. The starting force Fk is generated. When the finger is released from the start switch 304, the current to the secondary coil 302R is cut off. Thus, after the crankshaft 122 is activated in the forward rotation direction by the pushing operation of the activation switch 304, the rotation shaft 122A can be continuously rotated in the forward rotation direction by the on / off operation of the rotation drive switch portion 124.

In the rotation drive switch unit 124, at the timing when the electrode plate 302D starts to contact the contact brush unit 302B of the activation switch unit 302, as shown in FIG. 13B, the electrode plate 124C starts to contact the contact brushes 124B and 124B. Then, a current indicated by an arrow flows through the primary coil 112. By electromagnetic force generated by the interaction between the end face of the moving element 113 and the primary coil 112 (N pole), a tensile force F ₁ shown in FIG. 13 (B) generated in the movable element 113, FIGS. 4 to In the same way as the action shown in FIG. 6, the moving element 113 in the cylinder 111 can be continuously reciprocated by a reciprocating piston to continuously rotate the rotating shaft 122A in the normal rotation direction.

  FIG. 14 shows an example in which the crankshaft 122 is started from another position. As shown in the figure, when the crankshaft 122 is at an angle slightly upward from the horizontal posture, the mover 113 is positioned in front of the left secondary coil 301L. When the crankshaft 122 is at the above angle, the electrode plate 302D of the activation switch unit 302 is in a position to start contact with the contact brush unit 302C, and when the activation switch 304 is pressed in this positional relationship, the left secondary Current flows through the coil 301L, and the electromagnetic force generated by the interaction between the end face (N pole) of the mover 113 and the end face (S pole) of the secondary coil 301L causes the mover 113 to enter the secondary coil 301L. 14 is pulled in the left direction so as to enter, and a starting force Fk in the forward rotation direction (counterclockwise) is generated on the crankshaft 122. When the finger is released from the start switch 304, the current is not supplied to the secondary coil 302L. Therefore, in this case as well, after the crankshaft 122 is started in the forward rotation direction by the pressing operation of the start switch 304, the switch 124 The rotary shaft 122A can be continuously driven to rotate in the normal rotation direction by the on / off operation.

  When the rotary shaft 122A is rotationally driven in the reverse direction (clockwise), the rotation changeover switch 303 is switched to the reverse drive side (right). Thereafter, the crankshaft 122 is rotated clockwise so that the electrode plate 302D starts to come into contact with the contact brush unit 302B of the activation switch 302 at a predetermined position inclined further upward from the horizontal position. The position is adjusted in advance, and a current is passed through the right secondary coil 301R to generate a starting force in the right direction in the moving element 113. In synchronization with this, the electrode plates 126C and 126C of the rotary drive switch 126 are A current flows through the primary coil 112 in contact with the contact brushes 126B and 126B, and a tensile force in the right direction is generated in the movable element 113. As described above, after the crankshaft 122 is started in the reverse direction by the pressing operation of the start switch 304, the rotary shaft 122A can be continuously rotated in the reverse direction by the on / off operation of the rotation drive switch 126.

  FIG. 16 shows a fourth embodiment of the auxiliary power unit of the present invention, which is devised to obtain a larger rotational driving force by winding two coils side by side on a single cylinder. In the figure, reference numeral 400 denotes an auxiliary power unit. The same members as those in FIG. 2 are denoted by the same reference numerals and description thereof is omitted.

  As shown in the figure, two coils 401R and 401L are wound side by side on the outside of the cylinder 111. The switch unit 402 includes a rotor 402A that rotates about the rotation shaft 122A, and contact brush units 402B and 402C that include a pair of contact brushes that are respectively positioned before and after the rotor 402A. One electrode plate 402D is provided. Each of the two coils 401R and 401L is connected in parallel to the power source 130, that is, each upstream wire 131 of each coil 401R and 401L is connected to the positive side of the power source 130, and each downstream wire 131 is a contact brush. It is connected to the negative side of the power supply 130 via the units 402B and 402C. The electrode plate 402D comes into contact with one of the contact brush units 402B at a timing when the crankshaft 122 is lowered counterclockwise from the horizontal position (switch ON, see FIG. 16), and thereby current flows through the right coil 401R, When the moving element 113 is pulled to the right, and when the moving element 113 returns to the left, the crankshaft 122 comes in contact with the other contact brush unit 402C at the timing when it rises counterclockwise from the horizontal position (switch ON). A current flows through the coil 401L, and the moving element 113 is pulled to the left, whereby a large rotational driving force can be obtained by the rotating shaft 122A. As the starting means, the starting lever 125 shown in FIG. 1, the starting switch portion 302 shown in FIG. 10, or the like can be adopted.

  According to the auxiliary power unit 400 of the present embodiment, a larger rotational driving force can be obtained.

  In the auxiliary power unit shown in FIG. 1, a pair of cylinders are arranged in parallel, and a pair of movers connected to one output shaft 115 are allowed to reciprocate simultaneously in each cylinder. By winding the coil and connecting each coil in parallel to one power source, each movable element can be reciprocated simultaneously, thereby increasing the output (horsepower) obtained from the output shaft. Moreover, a secondary coil can be wound around the outside of the primary coil, and the current obtained by the secondary coil can be stored or charged in a capacitor or battery.

  The auxiliary power device of the present invention can be widely used as an auxiliary power device for bicycles, carts, lawnmowers, agricultural machines, sewing machines, and the like.

100, 200, 300, 400 Auxiliary power unit 101 Support base 101a Support unit 110 Reciprocating operation unit 111 Cylinder 112, 401L, 401R Coil (primary coil)
113 Mover 113A One end surface of the mover 113B Other end surface 114, 116, 121 Bearing 115 First output shaft 115a One end of the first output shaft 115b Other end of the first output shaft 115c Connecting pin 117 Second output shaft 117a One end of second output shaft 120 Rotating part 122 Crankshaft 122A Rotating shaft 123 Connecting rod 124, 124 ', 126 Rotation drive switch part 124A, 124A', 126A, 302A, 402A Rotor 124B, 124B ', 126B Contact brush 124C, 124C ′, 126C, 402D Electrode plate 125 Start lever 130 Power supply 131 Wiring 132 Power switch 133 Variable resistance 150 Bicycle frame 151, 153 Bicycle pedal 152 Auxiliary lever 301L, 301R Secondary coil 302B, 302C, 402B, 4 02C Contact brush unit 303 Rotation change switch 304 Start switch L Movable section M Coil winding section

Claims (5)

It has a reciprocating operation part, a rotating part, and a power supply part,
The reciprocating operation unit includes a cylindrical cylinder, a coil wound around the cylinder, a mover made of a magnet or a magnetic material that reciprocates in the cylinder, and one of the movers supported slidably on one end surface of the cylinder. A first output shaft coupled to the end surface of the cylinder, and a second output shaft slidably supported on the other end surface of the cylinder and coupled to the other end surface of the moving element,
The rotating portion includes a crankshaft rotatably supported between a pair of bearings, a connecting pin connected to a crankpin of the crankshaft and the first output shaft, and a power supply portion to a coil in conjunction with rotation of the crankshaft. An auxiliary power unit having a rotation drive switch that intermittently repeats supply and interruption of current and reciprocates a moving element in a cylinder, and a start lever that starts a crankshaft.   The auxiliary power unit according to claim 1, wherein the reciprocating unit, the rotating unit, and the power source unit are integrally attached to the bicycle frame, and the bicycle pedal is rotatably connected to the start lever.   The auxiliary drive according to claim 1 or 2, wherein the rotary drive switch unit is set to be turned on and off in synchronization with a timing of depressing a pedal of the bicycle, and to intermittently supply a current from the power supply unit to the coil. Power unit. A reciprocating operation part, a rotating part, a power supply part, and a starting part are provided,
The reciprocating operation unit includes a cylindrical cylinder, a coil wound around the cylinder, a mover made of a magnet or a magnetic material that reciprocates in the cylinder, and one of the movers supported slidably on one end surface of the cylinder. A first output shaft coupled to the end surface of the cylinder, and a second output shaft slidably supported on the other end surface of the cylinder and coupled to the other end surface of the moving element,
The rotating portion includes a crankshaft rotatably supported between a pair of bearings, a connecting pin connected to a crankpin of the crankshaft and the first output shaft, and a power supply portion to a coil in conjunction with rotation of the crankshaft. It has a rotary drive switch that repeats the supply and interruption of current intermittently and reciprocates the moving element in the cylinder.
The starting unit is an auxiliary power unit having a secondary coil wound around a cylinder and a start switch unit that temporarily supplies a current from the power source unit to the secondary coil to start a moving element in the cylinder. A reciprocating operation part, a rotating part, a power supply part, and a starting part are provided,
The reciprocating operation unit is supported by a cylindrical cylinder, a pair of left and right coils wound around the cylinder, a mover made of a magnet or a magnetic material that reciprocates in the cylinder, and slidably supported on one end surface of the cylinder. Having an output shaft connected to one end face of the child;
The rotating portion includes a crankshaft rotatably supported between a pair of bearings, a connecting rod connected to a crankpin of the crankshaft and an output shaft, and a current from the power supply portion to each coil in conjunction with the rotation of the crankshaft. An auxiliary power unit having a rotation drive switch unit that intermittently repeats supply and interruption of the cylinder and reciprocates the moving element in the cylinder.

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