JPS5919442Y2 - Vehicle-mounted antenna automatic expansion/contraction operation mechanism - Google Patents

Description

[Detailed description of the invention] This invention relates to the invention of an automatic expansion/contraction operation mechanism for a vehicle-mounted antenna.
The automatic expansion/contraction operation of the vehicle antenna can be appropriately performed by operating an engine key switch or a radio switch, thereby making it possible to utilize the antenna in a preferable manner, and also preventing burnout of the automatic expansion/contraction operation motor.

Automatically extending and retracting the in-vehicle antenna using a motor eliminates the need to go outside the vehicle each time the antenna needs to be extended and retracted, and it is possible to automatically extend and retract the antenna installed inside the vehicle on the outside of the vehicle. It is very significant because it can be carried out, and has been practiced to some extent in the past.

However, such a conventional vehicle-mounted antenna automatic expansion/contraction operation mechanism requires a special switch for driving the motor, which not only requires a certain amount of consideration when installing it, but is also troublesome to operate. In many cases, the antenna is parked with the antenna extended, which may cause the antenna to break, or the extended antenna may become an obstacle when parked. In order to make a cotton wire from an item that has been taken out, it is necessary to open the door and operate a switch from inside the car, so there is even a drawback that the automatic expansion and contraction operation mechanism makes it inconvenient to operate the cotton wire.

Also, a mechanical motor stop mechanism at the end of antenna extension or retraction tends to prevent burnout of the telescoping motor.

The present invention was devised through repeated research to improve the disadvantages and shortcomings of the conventional ones as described above, and the embodiment thereof will be described with reference to the attached drawings.The antenna 1 is a multi-stage pipe.

A winding mechanism in which the tip of a telescopic operation wire made of synthetic resin or other material is connected to the topmost antenna element, and the proximal end of this telescopic operation wire is engaged with a rotating body driven by a motor 2. In addition to the above-mentioned method, the applicant proposed a method for avoiding the complexity of the structure and manufacturing assembly of using a multi-stage pipe-shaped antenna element and a telescopic operation wire in combination. According to the method proposed in 2003, carbon fibers are bonded into a rod shape using a binder, or glass fibers are used in combination with conductive fibers such as metal fibers, metal wires, or any of the carbon fibers mentioned above. A resin coating mixed with conductive powder such as metal powder is applied to the circumferential surface of a rod material that is bonded in a rod shape or is made only of glass fibers, so that the electrical conductivity is obtained in this resin coating layer portion. The one that was used was adopted.

However, in the present invention, as a mechanism for driving the motor 2 as described above, there is a circuit from the power supply 9 to the field coil 4 attached to the motor 2, so that a receiving mechanism such as an engine key switch or a radio is enabled to receive the signal. A first switch 8 and a first switch 8 disposed opposite to the actor 5 for forming the
The second breakers 10a, 10b, a magnet coil 6, and a changeover switch 7 interlocked with the actor 5 are incorporated, and the actuator 5, the breaker 10
a, 10b, the magnet coil 6 and the changeover switch 7 portions are arranged in a suitable container A.

However, the above-described switch 8 is provided in a switching circuit 11 from the power source 9, and the circuit 11 is connected to one end of the magnet coil 6, and the other end of the magnet coil 6 is grounded 13. A power supply circuit 12 formed in parallel with the circuit 11 is connected to the movable piece of the changeover switch 7, one contact a of the changeover switch 7 is connected to a breaker circuit 15 having the breaker 10a, and the other contact This is the other one mentioned above.
It is connected to a breaker circuit 16 having two breakers 10 b, and these breakers 10 alo b are connected to both ends of the field coil 4 by the motor circuit 14 for the field coil 4 described above.

To explain the operation of the device according to the present invention as described above, FIG. 1 shows a state in which the engine key switch or the switch 8 for supplying power to a receiving mechanism such as a radio is turned off, and in this case, it will be described later. Since the switching switch 7 is in contact with its b contact due to such an operating relationship, power is supplied to the motor 2 via the circuit 12, 16 and the breaker 10b, that is, this power supply causes the motor 2 to connect the antenna 1 to the When the antenna 1 is completely retracted, the motor 2 is locked, and the current flowing through the breaker 10b increases, causing the breaker 10b to break and the bushing body 10p to be in the virtual line state. The line protrudes from the solid line state and motor 2 is stopped,
Complete the cotton wire condition of antenna 1.

In this state, when the switch 8 is turned on by operating the engine key or the push button of the receiving mechanism, as shown in FIG. -5 presses the bushing body 10p of the breaker 10b to restore it to the closed state and switches the changeover switch 7 to the contact a side, so power is supplied to the motor 2 via the circuit 15 and the breaker 10a. That is, by rotating the motor 1 in the normal direction, the antenna 1
Extend it like the arrow.

When the antenna 1 reaches its extrusion limit in this way, the motor 2 becomes locked, the breaker 10a is cut off, and the bushing body 10p protrudes as shown in FIG. 3, cutting off the power supply via the circuit 15. The rotation of the antenna 2 is stopped and the antenna 1 is maintained in the extended state.

If the switch 8 is turned off using the engine key or the operation part of the receiving mechanism in the state shown in FIG. 3, the state shown in FIG.
5 returns, and the button 10p of the breaker 10a is pressed to turn on the switch, but since the changeover switch 7 is switched to the contact side, the circuit 15 is not energized, and the circuit 16 and the breaker 10b side are connected through the contact point. Since power is supplied to the motor 2, the antenna 1 is wired.

Since the motor 2 is in a locked state at the wire limit of the antenna 1, it is clear that the breaker 10b is cut and pushes out the bushing body 10p, stopping the rotation of the motor and maintaining it in the wire state. is the first
As shown in the figure, if the switch 8 is closed using the engine key or the like in this state, the operations described above with respect to Figures 2 and below will be repeated.

According to the present invention as explained above, the antenna can be automatically extended and wired by turning the switch 8 on and off using the operating means in the receiving mechanism of the engine key or the in-vehicle radio. The antenna is no longer left extended and has the feature of properly preventing the antenna from being broken or other accidents.
Moreover, a breaker is installed in the power supply circuit for the motor for automatic expansion and contraction, and the power supply is automatically turned off at the antenna extension limit or the cotton wire limit, so there is no risk of burnout of the motor. The bushing body in each breaker is operated by an actuator 5 operated by a magnet coil 6, and the power supply relationship to these breaker parts is also switched by a changeover switch 7, so that the above-mentioned operating relationship can be performed smoothly. However, since the above-mentioned actuator, breaker, magnet coil, and selector switch parts are arranged inside the container, wiring etc. are simplified when installing it in a car, etc., and it has the effect of making installation easier. This is a highly effective idea in practical terms.

[BRIEF DESCRIPTION OF THE DRAWINGS] The drawings show embodiments of the present invention, in which Fig. 1 is an explanatory diagram showing the state in which the antenna wire of the automatic extension/retraction operation mechanism according to the invention is completed, and Fig. 2 shows the subsequent extension/retraction operation mechanism. FIG. 3 is an explanatory diagram showing the extended operating state, and FIG. 4 is the subsequent antenna wire operating state. In these drawings, 1 is an antenna, 2 is a motor, 4 is its filled coil, 5 is an actor, 16 is a magnet coil, 7 is a changeover switch, and 8 is a switch that is turned on and off by the engine key or the operation part of the receiving mechanism. , 9
is a power supply, 10a and 10b are breakers, 11 is a switching circuit, 12 is a power supply circuit, 14 is a motor circuit, 1
5.16 shows the breaker circuit.

Claims (1)

[Scope of utility model registration request] A power supply circuit having a breaker is connected to each end of a filled coil attached to a motor for extending and contracting the antenna. A switching circuit is provided with a switch that is turned on and off by a key or an operation part for reception in a receiving mechanism, a magnetic coil is connected to this switching circuit, and an actor operated by the magnetic coil is connected to the bush body of the breaker as described above. A vehicle-mounted antenna automatic expansion/contraction operation mechanism, characterized in that the above-mentioned actor, breaker, magnetic coil, and changeover switch are arranged in a body, and the changeover switch is interlocked with the actor. .