JPS58178928A - Electric switch - 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 The present invention includes a first fixed contact connected to a power supply source and a plurality of fixed contacts connected to a power supply source. and a sliding element having a plurality of movable contacts, the second fixed contact being able to be connected to the first fixed contact. It is something. This type of electrical switch is used, for example, as an ignition switch in a steering wheel lock device of an automobile.

Conventionally, most of the ignition switches used in steering wheel lock devices are rotary switches,
That is, in these switches, the movable contacts are not fixed to the sliding element, but are attached to the rotating element, as in the present invention.

An electrical switch of this type according to the invention, ie a switch comprising sliding elements for establishing different connections between a second fixed contact and a first fixed contact, is described in British Patent Application No. 2. It is disclosed in No. t154.965. The switch according to this British patent application is capable of: 1. four second fixed contacts being connected to the first fixed contact of the switch according to a predetermined sequence; one single-acting conductive contact; Has sex shillings.

The switch disclosed in the above-mentioned UK patent application suffers from the disadvantage that, due to its limited size, it can only close or open four electrical circuits. A second difficulty consists in the fact that the conductive cylinder rotates about its longitudinal axis as it passes different stationary contacts.

That is, this type of switch does not have a self-cleaning effect upon contact and does not slide on either movable or fixed contacts as in the present invention.

A first object of the invention is therefore to provide an electrical switch of the type in which the movable contacts can slide over the fixed contacts, thereby providing a self-cleaning effect of all the contacts. This can provide greater and longer term reliability during use.

A second object of the invention is, for example,
, 054,965, it is possible to open and close more electrical circuits, for example six in total, and for example the steering wheel lock to be used with this switch. It is an object of the present invention to provide an electric switch that can be placed without problems even in the interior of a device. In order to achieve these objectives, the electrical switch according to the invention slides in a groove that has two levels of substantially sliding or fixed elements, and this groove has two levels of sliding or fixed elements. It is characterized in that each has a first fixed contact and a second fixed contact, and that the sliding element has a movable contact in each corresponding level.

Furthermore, the invention is characterized in that the first stationary contact is divided into a plurality of branches, each branch being contacted by one or more of the movable contacts. .

Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings.

Figure 1 shows steering wheel lock device 1 for automobiles.
is shown diagrammatically. This well known.

The steering lock device includes a lock cylinder 4 operated by a housing 3° ignition key (not shown), which protrudes into a corresponding cutout island formed in the steering shaft (not shown) of the motor vehicle, and The latch 5 receives the spring force of the spring 7, and the latch 5 transmits the rotation of the lock cylinder 4 to the lower part of the steering wheel locking device, and the switch marked - when the ignition key is operated from the stop position to the drive position. A first rotary part 6 for removing the steering wheel from the notch in the steering shaft and, in known steering wheel locking devices, a second rotary part 8 for operating a rotary electric ignition switch.

In most steering wheel locking systems, the ignition key can be placed in the drive, stop, drive, and start positions, and each of the above positions has movable contacts in place of the fixed contacts of the electrical switch. It is worth noting that it is made to correspond to a certain fixed position. In other words, the electrical circuit that is closed at a given time depends on the position of the ignition key at that time.

2, 3, 4, 5, 6, 7, 8 and 9 show cross-sections of different parts of the electrical switch 2 according to the invention. The important parts of this switch 2 are the two parts 11 and Ila and the above fixed element]
Fixed contacts W, Q, and 7 are rigidly fixed to 1 and 11a.
．． ．． Y, R, T, X and movable contacts 21.22+23.2
6.27 (see FIGS. 9 and 13), and a rectangular opening on its top surface through which the tad 12a provided on the top surface of the sliding element 12 passes through. 15
It is a cap 1 () equipped with.

The electric switch 2 is connected to the steering wheel opening device 1 (the first (see FIGS. 10, 11 and 1211). The groove has the shape of a substantially spiral part.The interaction between the stud 1a and the groove 9 will be explained below.

Note that the groove 5) described in 1-1 may have an elliptical shape or a circular shape.

There are a total of 7 standard fixed contacts (
(see Figure 4). That is, 1-, 7
The fixed contacts include a first fixed contact Q connected to a power supply source and six second fixed contacts W, Z, Y, R, T connected to a total of six different electrical circuits.

There is an X. - No.j, inside the switch 2, i.e. in FIG. 8, at the level of the fixed part 11a, a total of 9
Fixed contacts (see FIG. 5) are provided.

In fact, the first fixed contact Q is divided at the level by a flat interlocking body 16 into a total of three branches Q', Q'', Q''. Therefore, the movable contact 2 of the sliding element 12
There are three fixed contacts that can contact 1.22, 23, 26.27 (see Figures 9 and 13).
, Q', Q"+Q", a total of six second fixed contacts W,
Z, Y, R, 1', and X.

The sliding element 12 is provided with movable contacts at two different levels. In FIG. 9, the movable contact 21 is
Located at the side level, two movable contacts 22.23
is located at the lower level of the L sliding element 12. In the same way as above, the groove 19 (see Figure 9) has two different levels, in which the sliding element 12 can slide when a suitable force is applied to its stand. There is. And fixed contacts W, Q', Z, Y, Q", R, T
(see FIG. 6) extends only up to the level of the lower side of the sliding element 12 and to the level of the fixed contact Q'' or on the L side of the sliding element 12.

The different connections between the movable and fixed contacts should be established depending on the position of the ignition key of the steering wheel locking device 1 (either in the ignition position, or in the front, drive or start position). The dynamic element 12 can assume corresponding positions within the groove I SJ in which it slides in a rectangular interlocking manner. It is determined by the sliding element regulated by the spiral groove 91 of the rotating part 8.

The shape of the F groove 9 is such that it allows the sliding element and the stand to move rectangularly and to move the sliding element to its response position depending on the respective position of the ignition key. . In other words, an electric circuit or a moving contact 2+ corresponding to each position of the ignition key corresponds to each predetermined position of the ignition key.
22.23,26゜',! The sliding element 12 is positioned so that it is closed by 7.

In FIG. 10, the ignition key and thus the groove 9 of the rotating part 8 of the steering wheel opening device 1 are shown.
and the sliding element 12's sliding element 12a is in the garage position. In FIG. 11, the same parts as above are in the start position, and in FIG. 12, these parts are in a position intermediate between the garage position and the start position.

13, 14, 15 and 16 show in more detail the construction of the sliding element 12 and the movable contacts it supports. A total of five movable contacts associated with the sliding element 12 are shown in FIG. That is,
A movable contact 21 located at the upper level of the sliding element 12 and a total of four ii1 movable contacts 22.26 and 23t27 located respectively on each side of the lower level of the sliding element 12. Each movable contact substantially has a relatively flat U-shape, and its two 7-run portions fit into the notches 3S provided in the 1 and 11 walls of the sliding element 12. At the same time, the outer surface of the upper part is pushed outward, ie toward the surface corresponding to the fixed contact.

The movable contact 21 is pressed against a surface corresponding to the fixed contact X by a coil spring 31 located within a notch 3 provided in the sliding element 12. The movable contacts 22, 26 are pressed toward the surfaces corresponding to the fixed contacts W, Q', Z, respectively, by coil springs 24a, 24b located in the respective notches 33a, 33b. The movable contacts 23, 27 are connected to the fixed contacts Y, Q", + by the same coil springs 24a+24b located in the same notches 2(3a, 33b) as above, respectively.
, and are pressed toward the surface corresponding to T. Inside these notches or seats 33a and 33b, there is a fill spring 24a.

24b is provided on the small shillings 3tla and 3i11+, and is supported by the sides of the 11th part (respectively).

Sliding element 12 and fixed element 11. 12e (see FIG. 14) and fixed contacts W, Q', 7. ;Y, Q", R, T
Movable contacts 22.2 G, 23, 27; 211 sliding on Q-X (see FIGS. 9 and 17) are thus guided in the direction of the lateral force, and surfaces 12 d and 42 c , 4
7 + 18 (see Figure 4) vertically. Furthermore, hooks 20a, 2 (lb, 20c,
20d is the fixing element 11° 11a (Fig. 6, Fig. 7,
8 and 9)) prevents upward displacement of the sliding element 12.

17, 18, 19 and 20 show that the ignition key of the steering wheel locking device 1 is rotated, so that the rotating part 8 is connected to the sliding element 12 and Movable contacts 21, 22
, 23, 26, and 27 are closed or opened when performing a rectangular movement.

Figure 17 corresponds to the Leno position of the ignition key. In the position of the ignition key, there is an electrical circuit Q"-23- which can be, for example, an electrical circuit for parking and, if necessary, operating the headlights of the vehicle.
Only one electrical circuit, which is 1, is closed or capable of being closed.

FIG. 18 corresponds to the stomp position of the ignition key. The position of this ignition key does not allow it to be closed (of course, it is connected to the power supply, but is not connected to the electrical switch 2 of the steering wheel locking device).

FIG. 19 corresponds to the driving position of the ignition key. In this ignition key position, a total of four electrical circuits are closed, or one switch that can be closed, e.g.
Circuit Q, which is a circuit that operates a large number of accessories
゛-n2-W.

- a circuit Q''-23-Y, which may for example be a circuit for activating winking and warning lights of a vehicle;

- a circuit Q''-21-X, which can be, for example, a circuit for operating a ventilator;

-Circuit I (-2°7-T.

However, this last circuit is the fixed contact Ql of the electric switch 2 of the steering wheel locking device 1.

It should be noted that it is not connected to the power supply through one of Q'', Q+ll, but through another switch connected to the power supply.

FIG. 20 corresponds to the starting position of the ignition key. In this position of the ignition key, a total of four circuits are closed or can be closed, as described above. That is, a total of three circuits Q'-22-
The circuits W, Q''-23-Y, and R-27-T are as described above, and the circuit Q''-26-Z is a circuit for operating the electric motor for starting the vehicle.

The present invention is not limited to the embodiments described above, and various changes and modifications can be made without departing from the technical scope of the invention as set forth in the appended claims. That is, for example, the electric switch according to the present invention is not limited to being attached to the bottom of a steering wheel locking device or to a rotating part of a mechanism that adjusts the rectangular interlocking of the sliding element L. In fact, the electric switch can be installed next to the L-marked rocky structure. In other words, it is actually the same mechanism, but it can be installed by making a few slight improvements. In this case, it is necessary to provide a helical groove in the rotating part that adjusts the rectangular movement of the sliding element.

As is clear from the above description, the present invention can effectively achieve the intended objectives.

[Brief explanation of the drawing]

FIG. 1 is a schematic longitudinal sectional view of a known steering wheel locking device, FIG. 2 is a side view of an electric switch according to the present invention, and FIG. 3 is a clockwise view. The top view of the switch shown in Figure 2 after it has been rotated, and Figure 4 shows a 9 (1
Figure 5 is a cross-sectional view along the line \'-\'' of Figure 2 rotated 90 degrees clockwise; Figure 6 is the top wall of the electrical switch. cut off the
and a plan view of the inch of FIG. 3 with the sliding element removed,
Fig. i is a plan view of the switch corresponding to Fig. 6 with the sliding element attached, and Fig. 8 is a cross-sectional view of the electric switch of Fig. 7, taken along the Vllll-Vllll line]j direction of Fig. 7. , Figure 9 shows the switch IX- of Figure 7 rotated 90° to the left.
Cross-sectional views in the direction of the IX line, FIGS. 10, 11, and 12
13 is a plan view similar to FIG. 3 showing how the sliding element of the switch according to the present invention is operated by the steering wheel locking device shown in FIG. 1, and FIG. A partial cross-sectional enlarged plan view of the element, Figure 14, rotated 90° to the left without showing the movable contact @13
Fig. 15 is a side view in the direction of arrow A in Fig. 13, which does not show the movable contact, and Fig. 16 shows a side view in the direction of arrow B in Fig. 13, which does not show the movable contact. Side view in the direction of arrow C in the figure, Figures 17 and 18,
19 and 20 schematically show a total of four different positions that the movable contact of the sliding element can assume with respect to the first and second fixed contacts, respectively. 2... Electric switch, Q... First fixed contact,
W, Z, Y, R, T, X...second fixed contact, (I
I, 1la)...Fixed element, 2], 22°23.
26.2'7...Movable contact, 12...Sliding element, 9...Groove, Q', Q'', Q''''...Branch, 1
2a...Stud. Patent Applicant: Champion Spark Plug Italiana Società Bell Achioichiji

Claims (1)

[Claims] (1) A fixed element (1) consisting of a first fixed contact (Q) and a plurality of second fixed contacts (W, Z, Y, R, T, 11, 11a), and a plurality of movable contacts capable of connecting the second fixed contacts (W, Z, Y, R, T, X) to the first fixed contact (Q) in a predetermined order. (21, 22, 23, 26, 27), for example, in an electric switch (2) for an automobile, which is equipped with a sliding element (12), in which the sliding element (12) is a fixed element (1]; 1la). 2
sliding in a groove (19) having two levels;
) are the first fixed contact (Q) and the second fixed contact (W, Z,
Y, R, T,
, 22, 23, 26, 27). (2. In the electric switch according to claim 1, the first fixed contact (Q) or the plurality of branches (Q', Q", Q
), and each branch has a movable contact (21, 22
, 23°, 26) or further north. (3) In the electric switch according to claim 2, the second fixed contacts (W, Z, Y, R, T, X) and the first
Branches of fixed contacts <Q) (Q', Q'', Q
), the connection via movable contacts (21, 22, 2, 3, 26) is 6-pin on both levels. (4) In the electric switch according to claim 3, in the area where the movable contact (21+22123126127) can be contacted, the second fixed contact (W, Z, , Y, R. T, X) and the first Branch (Q) of fixed contact (Q)
', Q''. An electric switch 2 characterized in that Q) has a flat blade shape. (5) In the electric switch according to claim 4, the movable contacts (21, 22, 2: L26, 27) is a flat U
The outer surface of the web has a spring means (2
4a, 24b, 31) to the second fixed contacts (W, Z
, Y, R, T, X) and the branch (Q', Q'', Q'') of the first fixed contact (Q). (6) In the electric switch according to claim 1, the sliding element (12) receives the action of the force applied to the stud (12a) provided on the sliding element (12), and the fixed element (1)
1. An electric switch characterized in that it slides in a groove (9) of 1 la). (7) The electric switch according to claim 6, wherein the electric switch is operated by a key and is incorporated in a steering wheel locking device (1) having a rotating member, the electric switch comprising: a sliding element; The stand (12a) of (12) is one of the rotating parts of the locking device (
8) Electrical switch (S) according to claim 7, characterized in that it is actuated by a co-rotating part (8) which actuates the stano l'' (12a) of the sliding element (12). ) or the stud (12a) of the sliding element (12).
) An electrical switch (9) according to claim 7, characterized in that the switch (9) is provided with a groove (9) projecting inwardly, for actuating the stand (12a) of the sliding element (12). Electrical switch characterized in that it is provided with a rotating part (8) or a groove which is substantially oval or circular in shape. (10) An electrical switch according to claim 7, characterized in that the rotating part of the sliding element (12) for actuating the stud (12a) has a substantially helical shape;
) or an electrical switch characterized by having an internally protruding groove. (11) The electric switch according to any one of claims 1 to 1(), wherein the switch has a total of six fixed contacts (W, Z, Y, R, T, X) and five movable contacts (21, 22, 23, 2, 6
゜27), and the first fixed contact (Q) is divided into a total of three branches (Q', Q"Q1").