JPH01289034A - Device for detecting whether or not key is in lock in case of main switch with cylinder of vehicle or the like - Google Patents

Abstract

PURPOSE:To inhibit a driver to leave his car without removing the key from the lock by simply reconstructing a presently provided main switch with a cylinder lock to add a function to detect whether or not the key is left in the lock. CONSTITUTION:A simple reconstruction of the external item, construction and action of the presently provided main switch 35 is left as they are. A center rod 4 is mounted in the shaft of a roter 6 and a rod spring 5 is fitted to it for connection. An earth terminal 8 is buried in a power board and an earth wire 9 is connected to it. The main switch 35 is connected to a buttery 32 through the earth wire 9, on the way to which an intermediate switch 34 such as a door switch, and an alarm display 33 such as buzzer, are arranged. When a door is opened as a key 1 left in the cylinder lock, the intermediate switch 34 is closed so that the alarm indicator 33 works to call the driver's attention.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a device for preventing so-called "forgetting to remove the key" from a vehicle or the like.

Robbery, kidnapping, and other crimes, which have been increasing rapidly in recent years, take full advantage of mobility and use stolen cars. In addition, there are many cases where people are triggered by cars with keys, leading to serious accidents and illegal acts. Nowadays, it must be said that the responsibility of forgetting to remove the key is extremely important.

However, on the other hand, if there is a blind spot in the driver's attentiveness, just as there is no end to the car being locked with the key left in the car, it would be appropriate to take measures to compensate for this blind spot.

Therefore, the present invention provides a system that immediately before the driver leaves the vehicle,
This is intended to prevent users from forgetting to remove the key by giving a certain warning. Examples of this device will be described below based on the drawings.

First, among the current main switches with cylinder locks (hereinafter referred to as conventional switches), we would like to introduce an example of the main switch with a cylinder lock.
An overview of the structure and action will be given.

A. Structure of conventional switch Figure 1 shows a conventional switch equipped with this device. Divided into the trowel part and the switch part, the trowel part, that is, the cylinder lock part, is:
An inner cylinder 2 in which a required number of cam plates 3 (six in the embodiment, only the final plate is numbered) is inserted into an outer cylinder 17, and a cap 11 and a base 12 are attached to each end edge. The set screw 14 prevents the inner cylinder from protruding. The switch section is constructed by accommodating a switch mechanism in a housing 18 integrally formed with an outer cylinder 17, and sealing the opening edge with a switchboard 7 on which a required number of contacts 21 and cords 22 are arranged. The switch mechanism consists of a rotor 6 that is connected to an inner cylindrical shaft by a built-in key 10 shown in the second figure, and whose tip is supported in a recess 29 in the center of the switchboard. The rotor is constructed of a connecting device 16, a starter switch return spring 19, a separation device 20 (FIG. 6) that is formed integrally with the rotor shaft plate and controls the rotation of the shaft, and the like. The connector 16 is made of a circular copper plate with a required number of protrusions as contacts and an insulator.

B The action of the conventional switch is supported by the plate spring 23 (Fig. 4) and the slit 25
The cam plate 5 housed in (Fig. 7) makes a cam movement in response to the key shaft, and when the key is inserted, it is pulled into the inner cylinder surface level as shown in Fig. 1, and the inner cylinder 2 rotates. Become free. At the time of extraction, the inner cylinder 2 is locked by protruding the end edge into the lock groove 13 on the inner surface of the outer cylinder as shown in FIGS. 3 and 4.

Now, when the inner cylinder 2 rotates together with the key 1, the rotor 6 moves together, and the contacts of the connector 16 rotate the contacts of the switchboard 7 to form the required circuit.Finally, it becomes a starter switch, and in this case only, it is automatically restored by the return spring 19.

The structure and operation of the conventional switch used in the embodiments have been described above, but the concept of the present invention is that even if it is unavoidable to change the minimum specifications of the parts related to the device, the external specifications of the main body, the structure and The effect remains the same as before, and is as easy to understand as possible.
The purpose is to add a function to detect key attachment/detachment. This will be explained in detail in the following sections C-F.

New parts required for C device (Figures 1 and 5) (a) In order to install the center rod 4, rod spring 5, install it inside the shaft of the rotor 6 using a metal rod with the required head. .

(b) The rod spring 5 is fitted into the center rod 4, is located within the shaft of the rotor 6, and is involved in the operation of the rod.

(c) In order to ensure the connection of the ground terminal 8haha rod end, it is cylindrical and spring type. It will be buried in the switchboard 7.

(d) Connect the ground wire 9 to the ground terminal 8.

Modification of a conventional switch that requires installation on top of a DCC (a) As shown in Figure 5, a passage 30 for the rod end following the recess 29 is provided in the switchboard 7, and a housing hole 31 for the ground terminal 8 is opened on the outside of the switchboard. establish.

(b) As shown in Figure 6, shaft holes 27 and 28 required for mounting the center rod 4 and rod spring 5 are provided in the rotor shaft.

(c) As shown in FIG. 7, the inner cylinder shaft hole 26 connecting the rotor main shaft is configured to fully open into the plate surface of the final cam plate 6 to be accommodated in the slit 25.

Therefore, the keyhole 24 is also opened.

Regarding the assembly of the EC top part, the trowel part has no relationship with the C top part, so it is as described in section A. Regarding the assembly of the switch part, in Fig. 1, (a) Attach the return spring 19.0 (b) Attach the base shaft of the rotor 6 with the center rod 4 and rod spring 5 attached through the bearing of the housing 18. and connect it to the inner cylinder 2.

(c) Assemble the spring 15 and connector 16 together with the separation device 20 to the rotor shaft.

(d) Insert the ground terminal 8 into the storage hole 31 and secure it.

(E) Connect the ground wire 9 to the ground terminal 8, and (F)
The switchboard 7 is fitted into the opening edge of the housing 18 and sealed by caulking.

F Effects added by incorporating the device (A) In Fig. 1, when the key 1 is inserted, the tip pushes the center rod 4, the rod end protrudes from the passage 30 and joins the ground terminal 8, and the unit Forms a ground.

(b) In FIG. 3, when the key 1 is removed, the rod end is restored by the rod spring 5, leaves the ground terminal 8, and opens the circuit.

In the above section 6, the present device has been explained in relation to a conventional switch. If we translate this into the "configuration and function" of the switch installed in this device, we can see that the configuration is ``haha'' and that the structure of the conventional switch (A) has been modified as required (D), and new parts (C) have been made.
) is obtained by assembling (K), and its action is the addition of the new action (F) to the action (B) of the conventional switch.

In the first place, a cylinder lock is unlocked when the key shaft clears a group of cam plates, but in order to do so, a certain portion of the tip of the key passes over the final cam plate 3, as shown in the first diagram. The present invention utilizes exactly this characteristic.

Therefore, since it is necessary to effectively absorb the slight movement of the tip of the key, the rod spring 5 is used to adhere the rod head to the final cam play (3) when the key is not actuated. Section D (c)
This is the reason why the described shaft hole 26 is provided. Further, the elasticity of the rod spring 50 is set so as not to exceed the drag force exerted on the key shaft, and the key (first operation stage) is not pushed back when activated. That is, the ground circuit is not released until the key is removed.

Needless to say, there are a wide variety of switch types depending on the make and model of the vehicle, but as long as they adopt the cylinder lock type, the basic structure and operation remain the same, so the present device is possible. As with conventional switches, the materials of the component parts are mainly metal, except for the insulators of the switchboard 7 and the connector 16, which are made of synthetic resin.

Next, we will discuss the installation of this device in an actual vehicle.

As shown in Fig. 8, an example of the wiring, the main switch 35
An intermediate switch 34 and a warning indicator 33 are arranged and wired between the battery 32 and the battery 32. The intermediate switch 34 detects the driver's intention to leave the vehicle.In a car, this is the action of opening the driver's seat door, and in a two-wheeled vehicle, the slightly confusing action of lifting one's hips off the seat is a declaration of intention. A door switch will be installed in the former, and a seat switch (newly installed) will be installed in the latter. As the warning indicator 33,
Possible options include a buzzer with appropriate sound quality and volume, an audio display, and an electric light system.

The operation of the device is as shown in Figure 8 (a) Close the door Middle 8 WOF Earth OF (b) Insert the key tt OF I ON (c)
Activate the key. Since it becomes #OF/10N, (b)
When the driver's door is opened or the rider leaves the motorcycle seat while in the state (c), the intermediate switch is turned on and the warning display 35 is activated. To stop this, all you have to do is remove the key and open the ground. Strictly speaking, it will not work if only the protruding part at the tip of the key is returned, but there is no necessity to do this unless it is necessary to put it on for a car display. Also, in the case of a door, it stops when you close it, so
There are times when you don't have to remove the -, such as when making frequent deliveries. In any case, you cannot leave the car with the key in it without warning.

Since this device is constructed as described above and is mounted on an actual vehicle, in terms of manufacturing, (a) the external gμ specifications remain the same, so the conventional mounting specifications may be used except for some wiring.

(b) In the case of buzzers, door switches, etc., existing equipment can be used in combination.

(c) Installation requires only some modification, and new parts are simple and easy to procure.

In terms of use, (d) It is impossible to forget to remove the key.

(e) Therefore, there will be no chance of stealing cars or renting cars, and crime and accidents will definitely decrease.

(f) In everyday life, there is no need to use a keyed lock, so the driver is completely freed from having to worry about it.

Effects such as these can be expected.

In the ever-expanding automobile society, appropriate measures are required to prevent stolen cars, etc., which are likely to lead to serious crimes and accidents.The present invention is extremely effective as a countermeasure that also benefits drivers. It is valid.

[Brief explanation of the drawing]

FIG. 1 is a vertical sectional view showing the main switch with two devices when the key is inserted. Figure 2: A sectional view taken along line A-A in Figure 1. FIG. 3: A side view, in contrast to FIG. 1, mainly showing parts related to the operation of the device when the key is removed. Figure 4: sectional view taken along line B-B in Figure 4. Figure 5: A partial cross-sectional view showing the positional relationship of three consecutive holes in the center of the switchboard. FIG. 6: A vertical cross-sectional view showing the rotor shaft and a partition device formed on the shaft plate. FIG. 7 - A vertical cross-sectional view of the inner cylinder showing the relationship of related component mounting holes. Figure 8: Wiring diagram showing an example of installation in an actual vehicle. It is. 1: Key 2: Inner cylinder 3: Cam plate 4: Center rod 5: Rod spring 6: Rotor 7: Switchboard 8: Earth terminal 9: Earth wire 10: Built-in key 11: Cap 12: Base 13
: Lock groove 14: Set screw 15: Spring 16: Connector 17: Outer cylinder 18: Housing '19: Return spring 20: Separator 21: Contact 22: Code 23 Nibrate spring 24: Key hole 25 Nislit 26: Shaft hole 27 :Shaft hole 28:Shaft hole
29: Recess 30: Passage 31: Storage hole 52: Battery 33: Warning indicator 34: Intermediate switch 65: Main switch one or more -

Claims (1)

[Claims] (a) Starting from the final cam plate (3) of the cylinder lock,
A center rod (4) is provided passing through the shaft of the inner cylinder (2) and the shaft of the rotor (6) interlocked therewith. (b) Rod spring (5) that controls the center rod (4)
) will be established. (c) A ground terminal (8) is provided on the switchboard (7) opposite the end of the center rod (4). (d) A ground wire (9) is connected to the ground terminal (8). With the above structure, the movement of the key tip when attaching or detaching the key (1) is transmitted to the center rod (4), and the rod end approaches or separates the ground terminal (8). Key attachment/detachment detection device for main switches with cylinder locks.