JPH0314759Y2 - - Google Patents

Description

[Detailed Description of the Invention] <Technical Field of the Invention> The present invention relates to a multi-directional switch. In particular, the present invention relates to a multi-directional switch that controls a drive unit for adjusting the visibility of an automobile mirror in the vertical and horizontal directions.

<Prior art and its problems> Conventionally, this type of multi-directional switch was developed in U.S. Pat.
46940. In other words, the switch case has a roughly cross-shaped opening on the upper surface and a moving groove on the side thereof, an insulator is fitted and fixed in the lower opening, and a partition plate is provided in the horizontal direction near the upper surface of the insulator in the opening. A circular cylinder protruding from the center of the partition plate, a spherical shaft head formed at the top of the circular cylinder, a rotation preventing protrusion protruding from the outer peripheral surface of the center of the head, and a protrusion protruding upward from the partition plate are fitted together. It has a letter-shaped sliding hole formed in four directions. A moving cavity is formed in the lower surface of the moving groove and is open to the upper surface of the insulator. Furthermore, a substantially cross-shaped pressing knob is provided. The pressure knob has a concave spherical surface that is press-fitted into the spherical shaft support head, and 4 holes at intervals of approximately 90° around the concave spherical surface.
A set of pressing pieces is provided.

A fixed contact belonging to each pressing movable element is provided on the insulator.

However, in such a conventional example, there is no problem when pressing the pressing movable element in the regular cross-shaped position by the pressing pieces arranged in a cross shape, but when pressing it in an oblique direction, there is no problem. There were cases where the movable contact and fixed contact corresponding to the direction were short-circuited and shot. In addition, since the movable contact is configured to be supported on a cantilever, it is not possible to provide strength to the movable contact, and there is no need to use a seesaw set of movable contacts, causing problems such as deformation of the movable contact and causing poor contact. It was hot.

Moreover, since the pressure knob is structured to move in multiple directions using a spherical pivot head, the pressure knob can be moved.
This not only causes poor contact, but also makes assembly difficult and increases the thickness of the switch.

<Purpose of the invention> In view of the problems of the conventional examples as mentioned above, the present invention
A four-way switching switch that does not cause short circuits even when the pressure knob is operated diagonally, can switch circuits using a strong seesaw-shaped movable contact, and can reduce the thickness of the switch. It provides:

<Structure of the invention> The present invention is a multi-directional changeover switch equipped with a four-way changeover switch and a left-right changeover switch, which includes a rectangular pressing knob of the four-way changeover switch and a slide knob of the left-right changeover switch. a switch case having an opening and a sliding groove formed therein; a substrate fitted to the open opening of the switch case; a partition plate that partitions the opening, the sliding groove, and a space inside the switch case; a spherical pivot head into which the locking recess of the press knob is fitted; four sets of press parts protruding on the inner diagonal line of the press knob; The base plate includes a rod, a seesaw type movable contact that is switched by the rod and corresponds to each rod, and a fixed contact that selectively conducts to the movable contact and corresponds to each movable contact. Only when two of the pressing portions press two of the seesaw type movable contacts through the rod, the two sets of seesaw type movable contacts press the corresponding two sets of the seesaw type movable contacts. It is characterized in that it is configured to close by contacting a fixed contact.

<Embodiment of the invention> Hereinafter, an embodiment of the invention will be described in detail with reference to the accompanying drawings.

1 to 7 show the configuration of a four-way changeover switch according to the present invention.

The multi-directional switch SW of the present invention includes a four-way switch SW1 that operates a mirror (not shown) in four directions (up, down, left, and right), and a left-right switch SW2 that selects the mirrors (not shown) installed on the left and right sides of a car. We are prepared. The switch case 1 has a generally rectangular box shape as a whole. The upper surface of the switch case 1 has a rectangular opening 11 and a sliding groove 12 adjacent to the opening 11.
is formed. Furthermore, an opening 13 is provided on the lower surface. A fixed contact 7 is provided in the opening 13.
1 (see FIG. 8) is fitted. An opening 11 formed on the upper surface of the switch case 1, a sliding groove 12, and a space 14 inside the switch case 1 are defined by a partition plate 15.
The partition plate 15 includes a partition portion 15a formed in a portion corresponding to the opening 11 and a partition portion 15b formed in a portion corresponding to the sliding groove 12. Although it is formed integrally with the switch case 1, it may be fitted separately. Further, the space 14 is shaped into a space 14a forming a four-way switch SW1 and a space 14b forming a left-right switch SW2.

The four-way switch SW1 has a rectangular opening 1.
1, a space 14a, and a rectangular partition 15a that defines the two. A spherical pivot head 3 into which the pressure knob 2 is fitted is protruded from the center of the partition 15a. A locking shaft 31 is provided on the spherical shaft support head 3 so as to protrude in the longitudinal direction of the switch case 1, and a partition portion 15a, its mounting flange 32, and fitting legs 33 are provided below. Furthermore, the partition part 15a
A mounting portion 43 is formed on a diagonal line centered on the spherical shaft support head 3, in which a fitting recess 41 for the rod 4 and a housing portion 42 for the spring 5 are formed so as to be perpendicular to each other toward the space 14a. ing. The upper wall of the fitting recess 41 of the rod 4 has a shaft 4 of the rod 4.
Four through holes 45 are bored. Further, the seesaw-shaped movable contact 8 disposed between the fixed contact 71 formed on the substrate 6 and the mounting portion 43 formed on the partition portion 15a has a curved protruding fulcrum 81 in the center and protrusions at both ends. Contact points 82, 82' are provided in a protruding manner. Further, the spring 5 formed on the mounting portion 43 of the partition portion 15a
A locking portion 83 of the spring 5 is provided to protrude upward at a portion corresponding to the lower side of the storage portion 42 . The pressing knob 2 has a rectangular plate shape, and includes a mounting part 21 having a locking recess 22 for the spherical pivot head 3 at the center of the back surface, and a pressing part 23 on a diagonal line centered on the mounting part 21.
is formed.

As shown in FIG. 7, the rod 4 has a rectangular shape with a hollow part 46 and an elastic part 47 formed at the lower edge, and has a shaft 44 in the upper part.

The movable contact 8 is pressed against the fixed contact 71, and the spring 5 is compressed between the locking part 83 and the storage part 42 of the mounting part 43 of the partition plate 15a.
A rod 4 is disposed on the opposite side with the shaft 44 passing through the through hole 45 from the front side, and the pressing knob 2 is fitted into the spherical shaft support head 3 so that the pressing portion 23 comes into contact with the shaft 44.

The left/right selector switch SW2 is shown in Fig. 1 and Fig. 2.
As shown in the figure and Fig. 6, the four-way changeover switch
It is disposed inside a sliding groove 12 formed adjacent to SW1 and a space 14b formed between the sliding groove 12 and the partitioning portion 15b of the partition plate 15. The left/right switch SW2 is a sliding contact 16,1 that slides left and right on a circuit formed on the board 6.
6', a spring 17 that presses the slide contact 16 against the fixed contact 71, and a slider 18 that houses and holds the spring 17.
The mounting portion 19 located in the middle of the base plate 16' is held in between, and the slide knob 12h is operated left and right to switch the fixed contact 71 on the board 6.

8 to 16 show the circuits of the multi-directional changeover switch SW of the present invention.

FIG. 8 shows the connection of the present invention in the neutral position.

Since the slide contacts 16, 16', which are the movable contacts of the left/right selector switch SW2, are open, the drive motors ML2, ML1, MR2, MR1 are not driven, and the mirror (not shown) is not operated. At this time, movable contacts 8 (8a, 8b,
8c, 8d), the movable contact 8a is in contact with the fixed contacts 72a and 72b, and the movable contact 8b is also in contact with the fixed contacts 72a and 72b.
3a and 73b are in contact, 8b is in contact with 74a and 74b, and 8b is in contact with 75a and 75b.

Next, as shown in Figure 9, switch the left/right selector switch SW2.
Switch the slide contacts 16, 16' to the left,
The description will be made with the press knob 2 tilted upward. Slide contact 16 of left/right selector switch SW2,
16' are the fixed contacts 71a, 71a',
71b and 71c'. The movable contact 8a of the four-way switch SW1 is the positive fixed contact 7.
1, connected to 72a and fixed contact 72c, 8
b is connected to 73a and 73c of the fixed contacts 71, and the two movable contacts 8a and 8b are switched at the same time. And 8c is 7 of the fixed contacts 71
4a and 74b, and 8b is connected to 75a and 75b of the fixed contacts 71.

Therefore, in this state, the current flows from the positive terminal 72a' to the fixed contact 72a to the movable contact 8a to the fixed contact 72c.
Fixed contact 73c - Movable contact 73a - Fixed contact 71
b - Slide contact 16' - Fixed contact 71c' - Terminal 71c'' - Drive motor ML1 - Fixed contact 74a' - Fixed contact 74a - Movable contact 8c - Fixed contact 74b - Negative contact 76d and only the flow ML1 rotates and the left mirror operate in the upward direction.

Next, when pressing the pressure knob 2 downward, the movable contacts 8c and 8d are simultaneously switched while the two movable contacts 8a and 8b remain in the same position as shown in FIG. 10, and the current flows from the positive terminal 72a' to the fixed contact 72a- Movable contact 8a
- Fixed contacts 72b-74c - Movable contacts 8c - Fixed contacts 74a - Contacts 74a' - Drive motor ML1 - Contacts 71c'' - Fixed contacts 71c' - Slide contacts 16'
- Fixed contacts 71b-73a - Movable contacts 8b - Fixed contacts 73b-74b - Negative terminal 76d and flow
Operate the mirror on the side where ML1 is rotated in the opposite direction downward.

Furthermore, when the pressure knob 2 is tilted to the left, the first
As shown in Figure 1, the current flows between the positive terminal 72a' and the fixed contact 7.
2a - Movable contact 8a - Fixed contact 75c - Movable contact 8d - Fixed contact 75a-71a - Slide contact 1
6-Fixed contact 71a'-Contact 71a''-ML2-Contact 7
4a'-74a-Movable contact 8c-Fixed contact 74b-
A current flows through the negative terminal 76d and operates the drive motor ML2.

Furthermore, when the pressing knob 2 is tilted to the right, as shown in FIG. -Terminal 71a''-Fixed contact 71a'-Slide contact 16-
A current flows through the fixed contacts 71a-75a, the movable contact 8d, the fixed contacts 75d-74b, and the negative terminal 76d, thereby operating the drive motor ML2.

Next, referring to FIGS. 13 to 16, a description will be given of the circuit relationship when the pressing knob 2 is pressed in the upper left, upper right, left and lower right directions, that is, the pressing knob 2 is pressed diagonally.

FIG. 13 shows the case where the pressure knob 2 is pressed in the upper left direction. In this case, the rod 4 is pushed down and the movable contact 8a is switched, but at this time the fixed contact 71
Since 74c and 74a are obliquely cut, the drive motors ML1 and ML2 do not operate, so the mirror (not shown) does not tilt.

FIG. 14 similarly shows the case where the pressure knob 2 is pressed in the upper right direction. In this case, the movable contact 8b is switched, but at this time, 7 of the fixed contacts 71
Since 4c and 74a are cut off, the drive motor
ML1 and ML2 do not operate, so the mirror does not tilt.

Furthermore, as shown in FIG. 15, when the pressure knob 2 is pressed to the lower left, the movable contact 8d is switched, but since 74c and 74a of the fixed contacts 71 are similarly cut off, the drive motors ML1 and ML2 do not operate and the mirror ( (not shown) does not tilt.

FIG. 16 shows a case where the pressure knob 2 is pressed to the lower right. At this time, the movable contact 8c is switched and the flow is from the positive terminal 72a' to the fixed contact 72a to the movable contact 8a.
Fixed contacts 72b-74c - Movable contact 8c - Fixed contact 74a - Terminal 74a' - Drive motor ML1 - Terminal 71c'' - Fixed contact 71c' - Movable contact 16' - Fixed contact 73b-74a - Drive motor ML2 - Terminal 7
1a'' - Fixed contact 71a' Movable contact 16 - Fixed contact 7
1a-75a-Movable contact 8d-Fixed contact 75d-
73b-74b - Negative terminal 76d and flow drive motors ML1 and ML2 are driven to tilt the mirror downward and to the right.

<Effects of the invention> Since the present invention has the above-described configuration, it can produce the following effects.

1. Even if the pressure knob is pressed in an oblique direction, the circuit will not be short-circuited or shot, which is advantageous in terms of the lifespan and safety of the switch.

2. Since the movable contact uses a seesaw type, it is less likely that the movable contact will be distorted and cause poor contact.

3. Since the rod is pressed by the pressing part provided on the pressing knob, the amount of movement of the rod is small and the overall thickness of the switch can be made thinner.

4 The seesaw type movable contact receives the pressing force of the pressure knob via the pressing part and rod, so the restoring force of the pressing part and rod does not require any special spring etc. It is expected that the structure can be simplified and made thinner.

[Brief explanation of drawings]

Figures 1 to 7 show the structure of the multi-directional switch of the present invention. Figure 1 is a top view, Figure 2 is a top view with the push knob removed, and Figure 3 is a top view of the switch. The back view, Figure 4 is a sectional view taken along line A-A in Figure 1,
Figure 5 is a sectional view taken along line B-B in Figure 1, Figure 6 is a sectional view taken along line C-C in Figure 1, Figure 7 is a sectional view taken along line D-D in Figure 1, and Figures 8 to 16 are The circuit diagram of the present invention is shown in Fig. 8, which shows the connection state in the neutral position, Fig. 9, which shows the left mirror tilted upward, and Fig. 10. Circuit diagram showing the state of tilting downward, 1st
Figure 1 is a circuit diagram showing the state tilted to the left.
Fig. 12 is a circuit diagram showing the state in which the pressure knob is tilted to the right, Fig. 13 is a circuit diagram showing the state in which the press knob is pressed in the upper left direction, and Fig. 14 is a circuit diagram showing the state in which it is pressed in the upper right direction. 15 is a circuit diagram showing a state in which it is pressed in the lower left direction, and FIG. 16 is a circuit diagram in which it is shown in a state in which it is pressed in a lower right direction. DESCRIPTION OF SYMBOLS 1...Switch case, 2...Press knob, 3...Spherical shaft support head, 4...Rod, 5...Spring, 6...
Board, 71... Fixed contact, 8... Movable contact, SW1...
Four-way switching switch, SW2...Left/right switching switch.

Claims (1)

[Scope of utility model registration request] A multi-directional changeover switch comprising a four-way changeover switch and a left-right changeover switch, wherein an opening and a sliding groove are formed with a rectangular pressing knob of the four-way changeover switch and a slide knob of the left-right changeover switch. A switch case, a board fitted into an opening of the switch case, a partition plate that partitions the opening, a sliding groove, and a space inside the switch case, and a locking recess for the pressing knob provided in the partition plate. a spherical shaft support head into which is fitted, four sets of pressing parts protruding on the inner diagonal of the pressing knob, a rod that moves up and down by the pressing parts and corresponds to each pressing part, and a rod that is switched by the rod to It consists of a see-saw type movable contact corresponding to the rod, and a board equipped with a fixed contact that selectively conducts to the movable contact and corresponds to each movable contact. Only when two sets of the seesaw type movable contacts are pressed through the rod, the two sets of seesaw type movable contacts contact the corresponding two sets of the fixed contacts and close. A multi-directional switch characterized in that it is configured as follows.