JP2010084425A - Pylon and charging stand for the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To automatically turn on or out an indicating lamp of a pylon. <P>SOLUTION: In the pylon 10, an indicating lamp unit 14 which is internally provided with the indicating lamp is provided in the upper portion of a pylon body 12 which is formed in such a shape as to be capable of being stacked in a mutually nested manner. The pylon includes a secondary battery for supplying electric power to the indicating lamp 24, a charging circuit for charging the secondary battery, and a charging coil L<SB>2</SB>for supplying the electric power into the charging circuit, and the charging coil L<SB>2</SB>is arranged in a prescribed position in a flange 16 which is integrally formed at the outer periphery of the base end of the pylon. The pylon is placed on a charging stand 30, and a drive circuit 32 of the charging stand 30 is driven so that an induced current can be generated in the charging coil L<SB>2</SB>by the magnetic flux of a magnetic flux generating coil L<SB>1</SB>. Thus, the secondary battery is charged. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a pylon having an indicator lamp for displaying a dangerous area at a road construction site or the like, and more particularly to a pylon having a rechargeable secondary battery for an indicator lamp and its charging stand.

  A cone-type pylon is used to display dangerous areas in road construction. Some pylons are equipped with indicator lights to make them easier to see even in dark places such as at night. Electric power for turning on the indicator lamp is generally supplied by a battery or a storage battery.

  FIG. 9 shows a conventional pylon described in Patent Document 1. The light emitting device 130 of the pylon is made of a red synthetic resin having higher transparency than the pylon main body 120, and has a spherical head and a conical enormous portion that expands downward from there. . An internal thread is formed inside the enormous portion, and is configured to engage with an external thread formed on the top of the pylon body 120. The light emitting device 130 formed in this manner is provided with a light emitter 142 such as a light bulb or LED, and a dry battery 143 is used here as a power source for emitting light from these light bulbs and light emitting elements. .

However, since the pylon needs to be continuously turned on at night, for example, the dry battery 143 needs to be replaced relatively frequently. However, since the dry battery 143 is accommodated in the light emitting device 130 of the pylon, it is inconvenient to frequently replace the battery 143 for each unit.
Although it is conceivable to use a secondary battery instead of a dry battery, it is complicated to remove the display unit that stores the secondary battery and connect it to an external power source to charge the secondary battery for each pylon. .
Japanese Patent Laid-Open No. 10-60842

  The present invention was made in order to solve the above-described problems with the power supply of the conventional pylon indicator lamp, and its purpose is to collect a plurality of pylons for charging the secondary power source used for the pylon indicator light. And make it automatic and easy.

The invention of claim 1 is a pylon in which an indicator lamp unit having an indicator lamp inside is provided on an upper part of a pylon body formed in a shape that can be stacked in a nested manner. A secondary battery for charging the secondary battery, a charging circuit for charging the secondary battery, and a charging coil for supplying power to the charging circuit. At least the charging coil is integrally formed on the outer periphery of the base end of the pylon. It is arranged at a predetermined position in the flange.
According to a second aspect of the present invention, in the pylon according to the first aspect, the charging circuit includes a monitoring unit that monitors a charging state of the secondary battery, and automatically disconnects the charging coil when the charging is completed. To do.
The invention of claim 3 is a pylon charging stand comprising a magnetic flux generating coil for charging the pylon according to claim 1 or 2 and a drive circuit for the magnetic flux generating coil. When installed, the magnetic flux generating coil is built in a position corresponding to the charging coil of the flange.

  According to the present invention, by simply placing the pylon on the charging stand, for example, it is possible to automatically charge the secondary batteries built in the plurality of pylons without removing the display unit as in the prior art. can do. Further, when charging is performed in a state where the pylon is stacked, by automatically disconnecting the charging coil that has been charged, charging of other uncompleted pylon can be performed more quickly.

A first embodiment of a pylon of the present invention will be described with reference to the drawings.
FIG. 1A is a cross-sectional view of a pylon 10 according to this embodiment, and FIG. 1B is a plan view thereof.
As shown in FIG. 1A, the pylon 10 includes, for example, a pylon main body 12 made of, for example, a red opaque synthetic resin material, and, for example, a red transparent or translucent synthetic resin material integrally provided on the pylon main body 12. The indicator lamp unit 14 is made of and is formed in a truncated cone shape as a whole.
The lower end portion of the pylon main body 12 is formed of a flat, for example, rectangular flange (saddle-shaped portion) 16 which is formed integrally with the pylon main body 12 and serves as a rectangular or circular ground contact surface.

An indicator lamp 24 made of a light emitter such as an LED is disposed in the indicator lamp unit 14. On the other hand, as shown in FIG. 1B, a charging lamp is provided near one corner of the rectangular flange 16 of the pylon main body 12. A coil L ₂ , a charging circuit 20 connected to the charging coil L ₂ by a conductive wire 23, and a secondary battery 25 are incorporated. Charging circuit 20 when the charging coil L ₂ disposed in an alternating magnetic flux by the magnetic flux generating coil L ₁ which will be described later, by controlling the current from the charging coil L ₂ charges the secondary battery 25. The indicator lamp 24 in the display unit 14 is connected to the secondary battery 25 by a conductive wire 26 and is supplied with power from the secondary battery 25 to emit light.

FIG. 2 is a cross-sectional view showing a state in which the pylon 10 described above is arranged on the charging stand 30 in a state where the pylons 10 are nested with each other.
Here, for example, three pylons 10 are overlapped, and the flanges 16 serving as the grounding surfaces thereof are arranged on the charging base 30 so as to overlap each other closely and horizontally, and the charging coil L arranged in the flange 16 is arranged. ₂ are arranged _{one above the} other in a state of being aligned with the magnetic flux generating coil L1 of the charging base 30.
The charging stand 30 is made of, for example, a synthetic resin, and the shape thereof is arbitrary. However, the charging stand 30 has at least a flat surface corresponding to the flat flange 16 of the pylon 10, and when the pylon 10 is placed thereon, the flange flux generating coil L ₁ at positions corresponding to the charging coil L _2, which is incorporated in 16 is embedded. Flux generating coil L ₁ is connected to a drive circuit 32 by the conductive wire 34, by driving the driving circuit 32, it generates magnetic flux on passage of electric current to the magnetic flux generating coil L _1. This drive circuit 32 is also built in the charging stand 30. As the power source of the drive circuit 32, for example, a commercial power source for general households or any other power source can be used.

In order to facilitate alignment between the magnetic flux generating coil L ₁ and the charging coil L ₂ of the pylon 10, the flange 16 may be disposed on a portion other than the position of the charging coil L ₂ , for example, on the lower surface thereof on the concave portion and the upper surface. A convex portion (may be an uneven strip) is formed, and on the other hand, a convex portion corresponding to the concave portion of the pylon 10 is formed on the upper surface of the charging stand 30.
By so doing, aligning the recess of the flange 16 of the first pylon 10 with the projection of the charging stand 30, followed if to match the uneven portion of the upper and lower pylon 10, a magnetic flux generating coil L ₁ aligning the charging coil L ₂ and can be easily performed. Alternatively, alignment may be performed by attaching a mark corresponding to the flange 16 portion of the pylon 10 and the charging stand 30.

When the secondary battery 25 of the pylon 10 is charged, first, a required number of pylons 10 are placed on the charging base 30, and then the driving circuit 32 of the charging base 30 is operated to connect the magnetic flux generating coil connected to the driving circuit. When energized L _1, magnetic flux F as shown in FIG. 2 is generated in the magnetic flux generating coil L _1, the induction current is generated in the charging coil L ₂ of the deployed pylon 10 during this flux.
The secondary battery 25 of the pylon 10 is charged by this induced current through a charging circuit 20 described below.

FIG. 3 shows an example of the charging circuit of the pylon 10.
The charging circuit 20 is charged is connected to the coil L _2, performs charging control for charging the secondary battery 25 by the induction current in charging coil L _2.
As shown in FIG. 3, the charging circuit 20 includes a diode bridge 21 that is connected to the charging coil L < _b > ₂ and converts the alternating current input into a direct current by full-wave rectification, and a positive output terminal 21 a of the diode bridge 21. and connected transistors T _1, the transistors T ₁ emitter - a resistor R ₁ connected between the base, the base and the resistor R ₁ of the transistors T _1, resistors R connected to the drain D side of the MOS transistor Q1 _2, between the negative terminal is connected to 21b and the MOS transistors _{Q 1,} the positive terminal 21a of the MOS transistor to _{Q 1} gate G and the transistor _{T 2} of the collector and the diode bridge 21 of the source S side diode bridge 21 a high resistance R ₃ connected, the emitter side is connected to the negative electrode side of the diode bridge 21, and its A transistor T ₂ which over scan side is connected to CPU 22, the positive terminal is connected via a diode D ₁ and a resistor R ₇ to the collector of the transistor T _1, connected negative electrode side to the negative terminal 21b of the diode bridge 21 Secondary battery 25, CPU 22 connected in parallel with secondary battery 25 between terminals 21a and 21b of diode bridge 21, resistors R ₅ and R ₆ connected in parallel to secondary battery 25, and resistance The terminal of the CPU 22 connected between R ₅ and the resistor R ₆ , the base side is connected to the CPU 22, the emitter side is connected to the negative electrode 21 b side of the diode bridge 21, and the collector side is connected to the indicator lamp 24 via the resistor R _8. Transistor T ₃ , one end side is a resistor R ₈ , the other end side is a resistor R ₇ , and the positive side of the diode bridge 21 via a diode D _1. An indicator lamp 24 connected to the terminal 21a is provided.

Next, the operation of the charging circuit 20 will be described.
When the pylon 10 is nested and placed on the charging base 30 as shown in FIG. 2 and a driving circuit 32 of the charging base 30 is driven by operating a switch (not shown) manually or automatically, for example, magnetic flux is generated. flux F is generated alternating current flows through the coil L _1. Flux F generated, as shown in FIG. 2, for crossing the plurality of charging coil L ₂ stacked thereon, induced current is generated in the charging coil L _2. The induced current is full-wave rectified by the diode bridge 21 of the charging circuit 20 and is taken out from the terminals 21a and 21b of the charging circuit as a direct current.

That is, since a DC voltage is applied between the positive terminals, the positive terminal potential is applied to the gate G of the MOS transistor Q ₁ connected to the high resistance R ₃ and the source S and drain D of the MOS transistor Q ₁ are turned off. Switches from ON to ON. MOS transistor _{Q 1} is turned ON, current flows through the resistor _{R 1,} R 2, MOS transistor _{Q 1.}
When the current to the resistor _{R 1} flows, becomes ON and the transistor _{T 1} is turned. Diode D ₁ the transistor T ₁ is turns _ON, the current through the resistor R ₇ rechargeable battery 25 starts charging flows.

Here, when the charging voltage of the secondary battery 25 reaches the operating voltage V ₀ of the CPU, the CPU 22 monitors the charging voltage of the secondary battery 25 with the divided voltage of the resistors R ₅ and R ₆ , and the charging voltage is constant. it reaches the voltage V _1, thereby lighting the indicator lamp 24 is turned oN this by controlling the base voltage of the transistor T _3.
In this state, further when the charging voltage is determined to to CPU22 it is fully charged increases, the ON this by controlling the base voltage of the transistor T _2.
ON transistor _{T 2} is a result lowers the potential of the gate G of the MOS transistors _{Q 1,} MOS transistor _{Q 1} is then OFF, charging coil _{L 2} is separated from the other high-resistance _{R 3.} That is, the charging coil L ₂ charging a substantially automated cleaved by the secondary battery 25 from the charging circuit 20 is stopped.

When the voltage of the secondary battery 25 is constant voltages _{V 1} below descends, CPU 22 is the OFF the transistor _{T 2,} the voltage of the secondary battery 25 is further reduced to _{V 2,} CPU 22 becomes inoperative, the transistor _{T 3} the transistor T ₃ since the base voltage becomes uncontrollable indicator is turned OFF is turned off. Further, in this state because it can not drive the transistor _{T 2,} the transistor _{T 2} are maintained means OFF.
Transistor _{T 2} is turned OFF, MOS transistor results in the gate G for _{Q 1} control voltage through a high resistance _{R 3} of a diode bridge 21 is applied, MOS transistor _{Q 1} is turned ON, the transistor thereby as described above T ₁ is turned ON. Therefore, the secondary battery 25, the terminal 21a of the diode bridge 21 via the diode _{D 1} and a resistor _{R 7,} are connected between 21b and starts charging again.

In the above description, the indicator 24 charging voltage reaches V ₁ of the rechargeable battery 25 will be automatically turned on. However, the indicator lamp 24 is necessary when used in a dark environment such as at night, but is not always necessary in a bright environment. Therefore, a power switch for blinking the indicator lamp 24 can be provided separately.
Separately from this, the indicator lamp 24 is turned on so that the indicator lamp 24 is turned off when the pylon 10 is stacked as in charging and storing, and the indicator lamp 24 is turned on when separated one by one. The automatic turn-off switch may be provided at any position on the circuit connecting the indicator lamp 24 and the secondary battery 25.
That is, for example, when the mechanical switch shown in Patent Document 1 is used to provide a switch on the top of the pylon 10 and the pylon 10 is stacked, the lower side is utilized by utilizing the weight of the upper pylon 10. The indicator light 10 can be turned off by operating the switch of the pylon indicator light 10.

  However, when a mechanical switch mechanism is used, a failure may occur if the switch mechanism is used for a long time because a movable part is provided in the switch mechanism. Therefore, in the present embodiment, as a switch having no moving part, for example, when a magnet (permanent magnet) and a magnetic detector made of a Hall IC are provided on the top of the pylon 10 and the pylon 10 is stacked, By detecting the magnetism of the magnet, the indicator lamp 24 is turned off.

FIG. 4 is a cross-sectional view in a state where the pylon 10 of the second embodiment is stacked.
The indicator light unit 14 has a circular truncated conical shape including a circular upper wall 141, a bottom wall 142 having a larger diameter than the circular upper wall 141, and a side wall 143 extending between the upper and lower walls 141, 142. A magnetic detector 140 is provided at the center of the upper wall 141, and a magnet (permanent magnet) 146 is provided at a position corresponding to the magnetic detector 140 at the center of the bottom wall 142.
An indicator lamp 24 is disposed on the bottom wall 142.

FIG. 5A shows a lighting control circuit for the indicator lamp 24.
Lighting control circuit includes a display lamp 24, a secondary battery 25 for supplying power to the indicator 24, and connected to the transistor T between one end and the secondary battery 25 of the indicator 24 comprising resistors Ra ₁ switching element If consists of a magnetic detector 140 having a Hall IC140a and resistance Ra ₁ for ON / OFF control of the switching element.

FIG. 5B is an operation timing chart of the lighting control circuit shown in FIG. 5A.
Here, a current is always supplied from the secondary battery 25 to the Hall IC 140a. When the Hall IC 140a senses magnetism in this state, an electromotive force is generated in the Hall IC 140a, thereby performing magnetic detection.
When magnetism is detected, an electromotive force is generated in the Hall IC 140a, so that the voltage on the output side of the Hall input IC 140a drops to 0V.
Indicator 24 is in the state in which holes IC140a no magnetic detection, the voltage of the secondary battery 25 is for the voltage divided by the resistors Ra ₁ and Ra ₂ is applied to the base of transistor T, conductive transistor, Therefore, the indicator lamp 24 is lit by receiving power from the secondary battery 25.
Here, when the Hall IC 140a detects magnetism, an electromotive force is generated so that the output of the Hall IC 140a becomes 0V for the secondary battery 25. Therefore, the base voltage of the transistor T also becomes 0V, and the switching circuit 147 by the transistor T opens. . Therefore, the indicator lamp 24 is turned off.

  As is apparent from this lighting operation timing chart, when the pylon 10 is stacked up and down, the upper surface of the upper wall 141 of the lower pylon and the lower surface of the bottom wall 142 of the upper pylon contact each other. As a result, the magnetic detector 140 and the magnet 146 provided are brought into contact with or close to each other, whereby the energization from the secondary battery 25 to the indicator lamp 24 is cut off. On the contrary, when the upper pylon 10 is separated from the lower pylon 10, energization from the secondary battery 25 to the indicator lamp 24 is resumed, so that the indicator lamp 24 is turned on.

In this embodiment, when the pylon is stacked, the lowermost pylon needs to be turned on / off by a manual switch provided separately as in the conventional case.
In the above description, the magnetic detector 140 is provided on the upper wall of the indicator light unit 14 and the magnet 146 is provided on the bottom wall. However, the magnet 146 is provided on the upper wall of the indicator light unit 14. The thing which provided the magnetic detector 140 in the bottom wall may be used. In this case, when the pylon is stacked, it is necessary to turn on / off the lighting power source for the uppermost pylon by a separate manual switch as in the conventional case.

Next, a third embodiment of the present invention will be described with reference to FIG.
FIG. 6 is a cross-sectional view of the third embodiment in which the pylons are stacked.
The pylon of the third embodiment requires a manual switch operation in the second pylon, but does not require it in the present embodiment.
It is sectional drawing which shows the pylon of 3rd Embodiment, In the figure, the same code | symbol is attached | subjected to the location same as 2nd Embodiment.
The pylon 10 of this embodiment differs from the indicator lamp unit 14 of the second embodiment in that a magnet (permanently) is spaced from the magnetic detector 140 disposed in the center of the upper wall 141 of the indicator lamp unit 14. 146), and on the bottom wall 142, in addition to the magnet 146R provided at the center thereof, a magnetic detector 140R corresponding to the magnet 146R is provided at a predetermined interval from the magnet 146R. It has been. The other points are the same as the pylon 10 of the second embodiment.

FIG. 7 shows a lighting control circuit for the indicator light of the pylon according to the third embodiment.
This lighting control circuit is different from the first embodiment in that two hall ICs, that is, an upper hall IC 140a and a lower hall IC 140aR are provided as a result of arranging the lower hall IC 140aR on the bottom wall 142 of the indicator lamp unit 14. However, the other points are the same.

FIG. 8 is an operation timing chart of the lighting control circuit of the pylon according to the present embodiment.
8A and 8B are operation timing diagrams when two stages are stacked, and FIG. 8C is an operation timing diagram of a pylon lighting control circuit located in the middle other than the upper end or the lower end when three or more stages are stacked. It is.
First, FIG. 8A will be described.
This state shows the operation timing of the lighting control circuit of the indicator lamp 24 of the upper pylon 10 in a state where another pylon 10 is stacked on the first pylon 10. In this state, since there is no magnetic detection by the upper magnetic detector 140, the upper Hall IC 140a is in an open state.
On the other hand, the lower magnetism detector 140R detects the magnetism when it comes into contact with the upper magnet 146 of the pylon 10 below it. As a result, the lower Hall IC 140aR generates an electromotive force, and the output voltage 0V is applied to the base of the transistor T. As a result, the transistor T of the switching circuit 147 of the indicator lamp is opened. That is, the indicator lamp 24 is turned off.

FIG. 8B shows the operation timing of the lighting control circuit of the indicator lamp 24 of the lower pylon 10 in a state where another pylon 10 is stacked on the pylon 10. In this state, when there is upper magnetic detection, the upper Hall IC 140a generates an electromotive force such that its output voltage becomes 0V, and thus the indicator lamp 24 is turned off.
Since the lower magnetic detector 140R of the lower pylon 10 does not detect magnetism, the lower Hall IC 140aR remains open before and after stacking, but as is apparent from the display control circuit, Since the switching mechanism in the circuit of the secondary battery 25 has already been turned off because the output of the upper Hall IC 140a is already 0V, the indicator lamp 24 has a separate upper side regardless of the state of the lower pylon 10. Turns off when pylon 10 is stacked.
On the contrary, if the upper pylon 10 is removed, the light is turned on again.

FIG. 8C is a diagram illustrating the operation timing of the display control circuit of the pylon located in the middle when another pylon 10 is stacked on the lower pylon 10 and the pylon 10 is further stacked thereon.
In this case, the magnetism of the pylon magnets 146 and 146R adjacent to the upper and lower magnetic detectors 140 and 140R is detected. That is, the upper Hall IC 140a and the lower Hall IC 140aR both detect magnetism and generate an electromotive force. That is, both the output voltages of the upper Hall IC 140a and the lower Hall IC 140aR are 0V. Accordingly, the switching circuit 147 connected to the circuit connecting the indicator lamp 24 and the secondary battery 25 is turned off, so that the indicator lamp 24 is turned off.
Note that the indicator light 24 of the lower pylon 10 is not turned on as described with reference to FIG. 5B simply by removing the upper pylon 10. Lights up for the first time when the pylon 10 is removed.

In addition, the magnetic detector 140 is arranged at the center of the bottom wall 142 by reversing the arrangement of the magnetic detector 140, the magnet 146, and the magnet 146R on the top wall 141 and the bottom wall 142 in the embodiment described above, A magnet 146R is disposed around the magnet 146R at a predetermined interval around the magnet 146. The magnet 146 is disposed at the center of the upper wall 141, and the magnetism detector 140R is disposed corresponding to the magnet 146R at a predetermined interval from the magnet detector 140. It may be provided.
As described above, in the second and third embodiments, the magnet is used as the detection target and the magnetic detection unit is used as the detection target. However, the detection target and the detection target are not limited to these, and other well-known proximity For example, one of the switch elements may be a light emitter and the other may be an optical sensor.
In the above embodiments, by adopting a configuration to automatically disconnect the charging coil L ₂ when the charging of the pylon 10 is completed, if the collectively overlapping a plurality of pylons 10 charged, charging is completed results charging coil L ₂ from the pylon 10 is automatically disconnected, it is possible to accelerate the charging of the pylon 10 of the remaining uncharged.

FIG. 1A is a sectional view of the pylon according to the first embodiment, and FIG. 1B is a plan view thereof. It is sectional drawing in the state which accumulated the pylon of 1st Embodiment. It is a charging circuit of the pylon of 1st Embodiment. It is sectional drawing in the state which accumulated the pylon of 2nd Embodiment. FIG. 5A is an operation timing chart of the lighting control circuit of the second embodiment, and FIG. 5B is an operation timing diagram of the lighting control circuit shown in FIG. 5A. It is sectional drawing in the state which accumulated the pylon of 3rd Embodiment. It is a lighting control circuit of the indicator light of the pylon of 3rd Embodiment. FIG. 8A and FIG. 8B are operation timing charts when two stages are stacked, and FIG. 8C is other than the upper end or the lower end when three or more stages are stacked. It is an operation | movement timing diagram of the lighting control circuit of the pylon located in the middle. It is sectional drawing in the state which accumulated the conventional pylon.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 ... Pylon, 12 ... Pylon main body, 14 ... Indicator light unit, 20 ... Charging circuit, 21 ... Diode bridge, 22 ... CPU, 24 ... Indicator light, 25. ..Secondary battery, 26 ... conductive wire, 30 ... charging stand, 32 ... drive circuit, 140,140R ... magnetic detector, 140a, 140aR ... Hall IC, 141 ... -Upper wall, 142 ... Bottom wall, 143 ... Side wall, 144 ... Indicator lamp, 146, 146R ... Magnet, 147 ... Switching circuit.

Claims (3)

A pylon having an indicator light unit provided with an indicator light inside the pylon main body formed in a shape that can be stacked in a nested manner,
A secondary battery that supplies power to the indicator lamp, a charging circuit that charges the secondary battery, and a charging coil that supplies power to the charging circuit;
The pylon is characterized in that at least the charging coil is disposed at a predetermined position in a flange integrally formed on the outer periphery of the proximal end portion of the pylon. The pylon according to claim 1,
The pylon is characterized in that the charging circuit has monitoring means for monitoring a charging state of the secondary battery, and automatically disconnects the charging coil when the charging is completed. A pylon charging stand comprising a magnetic flux generating coil for charging the pylon according to claim 1 or 2, and a driving circuit for the magnetic flux generating coil,
A pylon charging stand, wherein the magnetic flux generating coil is built in a position corresponding to the charging coil of the flange when the pylon is placed.

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