JPS58206449A - Burglarproof device for car - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a vehicle theft prevention device, which prevents an automatic vehicle (or other vehicle) from being manipulated for the purpose of theft, and reliably eliminates such problems. Dissolved 11c anti-theft device (related to 1/l).

Purpose of the Invention Even if this anti-theft device is installed on a vehicle, it will not change the appearance of the vehicle (regardless of the structural type of the vehicle), and will not affect the operation of the main components of the vehicle. The vehicle's control system will not change because it will not be forced to do so.

Structure of the Invention The principle of this vehicle anti-theft device is to block a part of the steering shaft by cutting off the connection between the steering wheel and the steering shaft;
1 (The direction of rotation of the wheels is fixed, but the pressure applied accordingly is not transmitted to the steering wheel, so the steering wheel is not blocked and the optimal state of the anti-theft device is achieved. be.

By reconnecting the steering handle and steering shaft, the steering system can be returned to its normal state.

The foregoing describes a steering rod that is identical in shape to the original steering rod, but is split at a predetermined height and has an irregularly toothed contact end that slides telescopically against the sleeve. and the sleeve, which is controlled by a known ignition key and serves to connect and uncouple them at the optimum time, has internal teeth as a shaft.

an upper rod coupled to the steering handle;
A friction washer is provided between the lower rod and the lower rod connected to the steering gear to rotate the rod, and an abutment portion or a friction washer is provided between the rods to prevent them from moving in the axial direction within the steering column. Both rods incorporate a thickened section and a support sleeve that acts as an element that serves to prevent this movement.

It has long been noted that there is a need to connect and uncouple both shafts via an actuating sleeve that telescopically slides on either or both shafts simultaneously. This sleeve is therefore designed as a cylindrical rack so that it is controlled by a pinion that is permanently engaged via the ignition key.

Also, the lower end of this sleeve is formed with fan-shaped teeth that engage with the teeth provided inside the steering column, so when this sleeve is in the blocking position, the teeth on the sleeve are connected to the teeth inside the steering column. to block the wheels.

Said pinion is actuated by the ignition key via a shaft and a safety cam, the outer periphery of said cam being provided with a labyrinth zone penetrated by a tracker located inside the steering column. .

Effect of the Invention With this structure, when the owner of a self-driving car uses the ignition key, he or she has to apply some force and push the key while turning the key, and by doing so, the pinion can be turned. , thus allowing the sleeve to be moved. Even if the ignition key is pressed as described above, the pinion does not move in the axial direction. This is because the pinion-to-shaft connection is well made to absorb axial movement.

The return stroke of the shaft described above is performed by a conventionally provided compression spring.

At the end of the pinion opposite to the aforementioned end, a switch holder is provided as an axial abutment, which is an element designed for installing an electrical switch device. This switch holder behaves like a radial bearing at this end of the pinion and acts as a sliding bearing to prevent axial movement, so that it acts as a mechanical component.

After Examples, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 to 15, the steering rod is divided into a lower shaft 1 and an upper shaft 2 at appropriate points. The upper shaft 2 is connected to the steering handle, and a friction washer 3 is arranged in the connection zone between the upper shaft 2 and the two shafts 1.2, which allows the two to rotate independently.

The shafts 1.2 are each formed with an annular thickened portion 4.5 for preventing axial movement, and sleeves 6, 7 are used to increase the overall strength. These mantles 6, 7 are located inside the steering column (
It is fixed to the steering column by a commonly used mechanical method.

The lower shirt (1) is supported by tooth grooves provided in the steering column as described below.

When the car is not in use, i.e. when the car is stolen, the shafts 1 and 2 are separated from each other, so
If you want to use a car, you need to connect the shafts 1 and 2 of each car. For this purpose, as shown in FIG. 6, a sleeve 8 is provided which has irregular tooth grooves 9 in the shape 1 on the inside corresponding to the tooth grooves 10 and 11 of the shirts 1 and 2, respectively. , this tooth groove will hopefully prevent the car from being stolen, and will also ensure that the wheels are always in the same position.
It is irregular as follows.

In order to facilitate axial movement of the sleeve, tooth grooves serving as rack teeth are formed on its circumferential surface. This sleeve is adapted to be actuated by a pinion 13.

Since a tooth groove 14 is formed at one end of the sleeve 8, it engages with a tooth groove 15 formed in the steering column 16. Therefore, when this sleeve 8 is in the lower position, i.e. in the anti-theft position, it blocks the shaft 9 and thus the steering system.

On the other hand, a car driver turns the ignition key all the way to start the car's engine. That is, it knows that it must first be turned past the on position, where the electric switch closes, to the starter position, where the starter is started.

The ignition key was turned to the starter position ffi.
When you release your hand, it automatically returns to the on position.

The overrun portion between the on position and the starter position is determined by the size of the gap 17 between the sleeve 8 and the thick wall portion 5.

Automatic return of the ignition key to the on position at this overrun portion is performed by a compression spring 18 housed between the contact portion 19 and a collar 20 provided on the thick wall portion 5.

The movement stroke of part 19 is determined by flexible ring 21, so that when sleeve 8 moves in the starting direction, this part 19 also moves, and ring 21 then prevents movement in the opposite direction.

Since the safety cam 23 is connected to the lock 22 by the shaft 25, both move simultaneously under the guidance of the tracker 26, so that when the lock 22 is actuated to turn it, the tracker 26 moves the cam 23. It is necessary to apply pressure to the lock in order to pass through all the labyrinth zones and prevent the whole from being tampered with.

Cam 230 rotation and forward movement are simultaneously transmitted to shaft 24. However, this shaft 24 has a buffer system that absorbs the forward movement.
The pinion 13 is not affected in any way. The above-mentioned buffer system includes the end of the shaft 24 and the pinion 1.
Although this is achieved by fitting the corresponding shaft 27 of No. 3, a spring 82 is also provided, which is necessary for returning the whole to its original state.

The shaft 24 on the opposite side of the pinion from the shaft is
Similarly, in a fitted state, it is housed in the movable part of the contact body 29, which is arranged in parallel with the fixed part 30 to which the electrical contacts of the automobile are connected.

The contact body 29 moves together with the pinion 13, but the fixed part 30 does not move and is mechanically connected to the steering column 16.

All the mechanisms described so far are based on the strong steering column 16 shown as an example in FIGS. 3 to 5.
It is stored in. Note that the intersection angle or inclination angle of the two parts constituting the illustrated steering column is as follows:
It goes without saying that it is not limited to what is shown in the figure, as it may vary depending on the vehicle.

[Brief explanation of the drawing]

Figure 1 is a side cross-sectional view of the vehicle anti-theft device shown in cross section to make it easier to see where the shaft and pinion are located, and Figure 2 is a side sectional view of the vehicle anti-theft device with only the pinion part shown in Figure 1 shown in section. 3 is a side sectional view of an exemplary steering column; FIG. 4 is a side view of FIG. 3 showing the tooth spaces necessary to block the wheels; FIG. 8 is a perspective view, FIG. 6 is a longitudinal sectional view showing the rack tooth groove on the circumferential surface of the sleeve, and FIG. 7 is an upper end surface of FIG.
FIG. 8 is a bottom end view of FIG. 6 showing internal tooth grooves corresponding to the tooth grooves on the shaft of the steering rod, and FIG.
Side view of the actuating shaft of the pinion with two small projections that fit into the safety cam, FIG. 1O is a bottom view of FIG. 9, FIG.
Figure 2 is a side view of the safety cam showing the hole in which one of the protrusions shown in Figure 9 fits, Figure 13 is a sectional view of the safety cam, and Figure 14 is a cross-sectional view of the safety cam.
This figure is an exploded perspective view showing the operating mechanism of the pinion, and FIG. 15 is an exploded perspective view of a portion of the shaft shown in FIG. 14. 1...Lower shaft, 2...Upper shaft, 3...Friction washer, 4.5...
Thick part, 6.7... Mantle, 8... Sleeve, 18... Compression spring, 19... Contact member,
21... Flexible ring, 23... Safety cam,
26...Tracer, 29...Contact body. Patent applicant Napau Sochegood 7nonima Patent attorney Aoyama Ha is 2 FIG, 2 FIG, 3 FIG, 5 FIG, 14 14 FIG, 15

Claims (1)

[Scope of Claims] (1) Particularly suitable for ground vehicles having a steering wheel blond divided at appropriate points, the dividing zones of both shafts being telescopically housed in a sturdy cylindrical sleeve. Irregular to regular tooth grooves corresponding to the external tooth grooves of the shaft are formed on the inner surface of the sleeve to connect or disconnect the two shafts according to the movement of the sleeve, so that movement of the sleeve is controlled by the vehicle user via the ignition key.
A shaft whose circumferential surface is shaped like a book tooth and is connected at one end to the lock via a safety cam and at the other end to an assembly supporting the electrical contacts necessary for normal operation of the vehicle. A vehicle anti-theft device (2, patent claim (1), wherein each of said shafts has a thickened section in a zone near the corresponding end to facilitate attachment; , a device characterized in that one base surface is supported by a thick walled part, and the other base surface is an elastic ring adapted to cooperate with a sleeve installed in the column. 3) A device according to claim (1), characterized in that friction washers are provided on both shafts, and both shafts are in contact with the washers. (4) ) A device according to claim (1) Jd, characterized in that the thick part of the shaft of the F section is in contact with a protrusion with tooth grooves provided on the column. (5 ) Claims (1) or (4), wherein one end of the sleeve is provided with a tooth grooved protrusion that fits into the mI protrusion, and when not in use. Patent (6) characterized in that the lower shaft is blocked; Claim No. 11 of the present invention is characterized in that the other end of the sleeve is provided with an annular recess into which an elastic ring is inserted. (7) The device according to claim (1) or (6), wherein between the end of the sleeve and the thick part of the upper shaft. , a device characterized in that a compression spring is interposed in order to absorb overrun that occurs when operating a vehicle engine. (8) The device Wt according to claim (1), A device characterized in that the central shaft of the actuating pinion of the sleeve extends in both directions and is split in line with the actuating shaft of the lock and the electrical contacts. 8) The device according to item 8), wherein the F part shaft of +111 is fitted and connected to the shaft connected to the lock via a safety cam. (lO ) as claimed in claim (1), (8) or 'fS(9), wherein the safety cam supported by the lock is provided with a labyrinth zone for 611 hexadecimal movement. A device characterized by: (11) Claims (1), (8), (
91QT or as described in paragraph (lO), in which a base rod device is provided perpendicular to the cam, and when the lock is actuated by a suitable key, the lock is moved in the axial direction. A device characterized in that the entire device is moved in the axial direction and the sleeve is moved by rotating on the shaft. (12. Claims (1) or (9), wherein a compression spring device is provided between the column and the disk supported at the end of the lower shaft to lock the lock. A device characterized in that it brings about the return of the entire device. (13) The device according to claim 11 or 8, wherein one of the electrical contacts is fixed and the other is fixed. A device characterized in that it is composed of two bodies that are connected to the upper shaft of a pinion so as to be able to rotate freely and move together.