JP2002137716A - Car theft preventing system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a system for preventing a car parked in a parking lot from being lifted up and removed by a carriage such as a truck crane and a tow truck. SOLUTION: An engaging device 2 provided with engaging hooks 3a, 3b for moving back and forth is mounted on a bottom surface of a car body 1, and an engaged part 4 provided with an engaging rod 5 for engaging the engaging hooks 3a, 3b is mounted and fixed on a floor surface of a parking space P. When the car body 1 is parked in a predetermined position and an engine is stopped, the engaging hooks 3a, 3b automatically swing down, and are engaged and locked with the engaging rod 5 to mechanically fix the car body 1 to the parking space P.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a system for preventing a vehicle parked in a parking lot or the like from being lifted and carried away by a carrier such as a crane truck or a tow truck.

[0002]

2. Description of the Related Art Conventionally, various means have been proposed as means for preventing theft of a car. For example, an alarm device is activated when a locked car is unlocked or a window glass is broken. And those in which the engine is not started by an operation other than the engine start operation using a regular key.

[0003]

However, the conventional anti-theft means is a countermeasure against theft in which the vehicle body is taken away by self-propulsion. Such a means is that the vehicle body is lifted and carried away by a carrier such as a crane truck or a tow truck. It was not effective against malicious and aggressive theft.

It is an object of the present invention to provide a vehicle anti-theft system which effectively functions even against such malicious and aggressive theft.

[0005]

SUMMARY OF THE INVENTION In order to solve this problem, the present invention comprises an engaging means provided on one of a bottom surface of a vehicle body and a parking space, and the other engaging means is provided with an engaging lock. It is configured to be provided with engaged means.

[0006] As a result, the vehicle body is mechanically fixed to the parking space by engaging and locking the engaging means with the engaged means, and the vehicle is lifted by a carrier such as a crane truck or a tow truck. It is surely prevented from being taken away.

[0007]

According to the first aspect of the present invention, an engaging means is provided on one of a bottom surface of a vehicle body and a parking space, and the engaging means is engaged and locked on the other. It is characterized by having an engaged means, and has an effect that a car can be mechanically fixed to a parking space.

According to a second aspect of the present invention, in the vehicle anti-theft system according to the first aspect, when the engine of the vehicle body parked in the parking space is stopped, the engaging means is automatically engaged. With this configuration, the vehicle body can be fixed to the parking space only by parking and turning off the engine.

According to a third aspect of the present invention, in the vehicle anti-theft system according to the first aspect, the engagement means is automatically activated in conjunction with the detection operation of the theft detection means of the car parked in the parking space. In normal parking, the engagement lock is not engaged, but when the door key is pryed open, the window glass is broken, etc. It has the effect that it is engaged and locked in the parking space.

According to a fourth aspect of the present invention, in the vehicle anti-theft system according to any one of the first to third aspects, the engaging means or the engaged means is automatically moved in accordance with the position of the mating means. The engagement means and the engaged means are located in a relative relationship suitable for engagement even when the vehicle body is parked forward or backward.

An embodiment of the present invention will be described below with reference to the drawings.

(First Embodiment) FIG. 1 shows a schematic configuration of a vehicle anti-theft system according to a first embodiment of the present invention. In FIG. 1, reference numeral 1 denotes a vehicle body such as a passenger car, and an engagement device 2 is attached to a rear bottom surface thereof. The engaging device 2 is provided with a pair of front and rear engaging hooks 3a and 3b, and swings the engaging hooks 3a and 3b into the engaged portion 4 dug and formed on the floor surface of the parking space P. The vehicle body 1 is mechanically engaged and fixed to the parking space P by being swung down and engaged with the engaging rod 5 laid horizontally in the engaged portion 4.

Details of the engagement device 2 are shown in FIGS. In this engagement device 2, support shafts 11a and 11b are respectively supported through the front and rear of a box-shaped sheet metal case 10 so as to be rotatable around horizontal horizontal axes a and b. , 11b have the engaging hooks 3a, 3b fixed thereto, respectively. The engaging hooks 3a and 3b are formed in an inverted U-shape by connecting the distal ends of the left and right arm members whose free ends are bent. The engaging hooks 3a and 3b have different lateral widths and lengths so that the engaging hooks 3a and 3b are engaged.

Operation arms 12a and 12b are fixed to the inner portions of the cases of the support shafts 11a and 11b. Further, a cam plate 13 is provided so as to be only slidable back and forth along the inner surface of one lateral side wall of the case 10. Before and after the cam plate 13, inclined cam grooves 14a and 14b are formed. Cam follower pins 15a, 15b provided at the tips of the operation arms 12a, 12b are engaged with the inclined cam grooves 14a, 14b.

With the above construction, the operation arms 12a and 12b are vertically swung with the forward and backward movement of the cam plate 13, whereby the engaging hooks 3a and 3b are raised and retracted and lowered and engaged. To be swung.

That is, as shown in FIG. 5, when the cam plate 13 is slid rearward (to the right in the figure), the cam follower pins 15a, 15b are guided to the front ends of the inclined cam grooves 14a, 14b. The two operation arms 12a and 12b are swung up and swung to the storage posture along the side surface of the case 10.
On the other hand, as shown in FIG. 6, when the cam plate 13 is slid forward (to the left in the figure), the cam follower pins 15a, 1
The guide arms 5b are guided to the rear ends of the inclined cam grooves 14a, 14b, so that the operation arms 12a, 12b are swung down and swung to the engagement action posture in which the engagement arms 6 are engaged. It is.

The cam plate 13 for swinging the engagement arms 12a and 12b is slid back and forth by screw feed. That is, an electric motor 17 with a speed reducer is installed on the bottom surface in the case 10 via the bracket 16 in the front-rear direction. The cam plate 13 is slid forward and backward by being screwed and penetrated into the female screw member 19 and the screw shaft 18 being driven forward and reverse.

Here, the engaging device 2 having the above-described structure is mounted on the vehicle body 1.
When the vehicle is parked such that the rear wheel 1a hits the car stop 20 in the parking space P, the vehicle body 1 is mounted so as to be in a suitable position with respect to the engaging rod 6, and the vehicle is properly parked in the parking space P. When the engine is turned off, the engagement hooks 3a, 3b in the retracted position are automatically swung down to the engaged position and engaged with the engaging rods 5. In addition, the key switch 22 is connected to the motor control controller 2 so that the key switch 22 automatically returns to the retracted position when the engine is started using a proper key.
1 (see the block diagram of FIG. 4).

When the cam plate 13 reaches the front and rear sliding limit, it is detected by the limit switches 23 and 24, and the electric motor 17 is stopped.

The operation of the controller 21 can be stopped by a power switch 25 provided in the operating section. When the vehicle is parked in a place where the engaged section 4 is not installed, the controller 21 can be stopped. When the engine 21 is stopped, the engagement hooks 3a, 3
b is not swung down.

(Embodiment 2) FIG. 9 shows an embodiment to which the present invention is applied when parking in a parking space P without a car stop. In this case, the parking space P
A long pit 30 is formed on the floor surface in the front-rear direction (in and out direction of the vehicle body), and the box-shaped engaged portion 4 provided with the engaging rod 5 moves back and forth via the guide shaft 31. It is mounted so as to be capable of being screwed forward and backward by a screw shaft 33 driven by an electric motor 32.

Then, the position of the engaging device 2 provided on the vehicle body 1 is detected by an infrared sensor or the like, and the electric motor 32 is controlled so that the engaged portion 4 is located immediately below the engaging device 2. It has become. Thereby, it is possible to appropriately engage and lock regardless of the direction of the vehicle body 1.

In the case where the lateral width of the parking space P is large and there is a possibility that the relative position of the engaging device 2 and the engaged portion 4 in the lateral direction is shifted, if the engaged portion 4 is only in the front-rear direction, It is preferable to control the movement in the left and right directions so that the engagement and locking can be performed properly regardless of the parking direction and position.

(Other Embodiments) The present invention can also be carried out in the following modes.

(1) As shown in FIG. 11, theft of a parked car is detected by a theft sensing means 35 such as a vibration sensor, and the engagement device 2 is engaged based on the detection. The lock operation may be performed so that the automatic engagement lock is not performed during normal parking.

(2) The engaging hook of the engaging device 2 can be arbitrarily moved in and out by operating a manual switch 36 provided in the operating section.

(3) As shown in the first and second embodiments, it is not always necessary to provide a pair of front and rear engagement hooks of the engagement device 2, and it is also possible to lock the engagement with one engagement hook. is there.

(4) Contrary to the above embodiment, the engagement device 2
May be provided on the floor surface of the parking space P, and the engagement rod 6 may be provided on the vehicle body 1 side.

(5) The present invention can be implemented not only in a parking lot but also in a parking space on a road. In this case, a line indicating the parking space is formed on the road surface, and the engaged portion or the engaging device is installed in the line. Further, in the case of parking on the road, it is desirable that the engaged portion 4 or the engaging device 2 installed on the road surface be arbitrarily moved in a relatively wide range in the front, rear, left and right directions.

(6) In the case of parking on the road,
It is desirable that devices and manuals for unlocking be delivered in advance to police, fire departments, and the like in charge so that a car whose parking is locked can be moved.

(7) In the above-described embodiment, the vehicle body 1 is fixed to the parking space P by engaging the two engaging hooks 3a and 3b with the engaging rods 5. A single partially circular rotary engagement hook may be rotated and driven as needed to engage the engagement rod 5.

[0032]

As described above, according to the present invention, it is possible to reliably prevent a parked car from being lifted and carried away by a carrier such as a crane truck or a tow truck.

[Brief description of the drawings]

FIG. 1 is a side view showing an entire system according to Embodiment 1 of the present invention.

FIG. 2 is a plan view of a parking space according to the first embodiment.

FIG. 3 is a side view of the engagement device.

FIG. 4 is a control block diagram according to the first embodiment.

FIG. 5 is a longitudinal sectional side view showing the engagement device and the engaged portion in a retracted posture.

FIG. 6 is a longitudinal sectional side view showing an engagement device and an engaged portion in an engagement action posture.

FIG. 7 is a cross-sectional plan view of the engagement device in the retracted position.

FIG. 8 is a longitudinal sectional front view showing an engagement device and an engaged portion in an engagement action posture.

FIG. 9 is a side view showing the entire system according to the second embodiment.

FIG. 10 is a plan view of a parking space according to the second embodiment.

FIG. 11 is a control block diagram according to another embodiment.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Body 2 Engagement means (engagement device) 4 Engagement means (engagement part) P Parking space

Claims (4)

[Claims] 1. A vehicle theft prevention device comprising: an engaging means provided on one of a bottom surface of a vehicle and a parking space; and an engaged means for engaging and locking the engaging means on the other. system. 2. The vehicle theft prevention system according to claim 1, wherein said engagement means is automatically engaged when an engine of a vehicle body parked in a parking space is stopped. 3. The vehicle theft according to claim 1, wherein said engagement means automatically engages in conjunction with the detection operation of the theft detection means of the vehicle body parked in the parking space. Prevention system. 4. The vehicle theft prevention system according to claim 1, wherein the engaging means or the engaged means is configured to be automatically movable in accordance with the position of the counterpart means. .