JPS638037Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a slide switch that has three operating positions and is capable of controlling two or more circuits.

Slide switches are widely known and have a variety of structures, but there are slides that turn off by moving the operating knob to the center position and turn on by moving the knob to the left or right. There is a switch.

With this type of slide switch, when the operation knob is moved to the left or right ON position, its movement is mechanically stopped; however, when this knob is moved to the central OFF position, such a stop is not possible. Due to the lack of a mechanism, the operating knob may not stop at this OFF position. Generally, a moderation mechanism is provided at the OFF position, and the knob is designed to stop at this position, so it usually stops at this OFF position, but if you operate the knob quickly or carelessly, If the moderation mechanism described above is worn out due to years of use, it may pass through the OFF position.

When this slide switch passes through the OFF position, it may move to another ON position, causing malfunction.

The present invention was developed in view of the above-mentioned drawbacks of slide switches, and the knob operated from the OFF position will surely stop at the ON position, and the knob operated from the ON position will surely stop at the OFF position. We propose the above-mentioned type of slide switch.

Hereinafter, embodiments of this invention will be described with reference to the drawings.

In the drawings, FIG. 1 is a partially cutaway front view of the slide switch 1 according to the present invention, and FIG.
A sectional view taken along line A and FIG. 3 are exploded perspective views of the slide switch 1.

In these figures, 2 is a switch body, and a switch device 3 is installed inside this body so as to be fixed thereto. Switch device 3 has this device 3.
An interlocking protrusion 3a that moves linearly along the surface of the switch device 3 is provided, and is in an OFF state when the protrusion 3a is located at the center of the switch device 3 as shown. Further, when the interlocking protrusion 3a is moved to the left or right of the central position, it is turned on. On the other hand, the above switch body 2
is provided with a chamber 4 formed by a sliding surface having the same plane as the surface of the switch device 3 and the side surface of the body 2, and a sliding plate 5 is placed inside this chamber 4. The chamber 4 has a size that does not impede the movement of the sliding plate 5 along a guide hole, which will be described later, and is provided with a protrusion 2a for guiding the movement.

The sliding plate 5 includes an operating knob 5a projecting from the center of its surface and a guide groove 5b formed on its back surface. As detailed in FIG. 4, the guide groove 5b is a long groove extending perpendicularly to the direction in which the interlocking projection 3a of the switch device 3 moves. This guide groove 5
The interlocking protrusion 3a described above is fitted into b, and the sliding plate 5
The protrusion 3a is interlocked only when the protrusion 3a slides in the movement direction of the protrusion 3a (left-right direction in the drawing). Note that FIG. 4 is a perspective view showing the back surface of the sliding plate 5.

Next, a fixing plate 6 is attached to the opening edge of the switch body 2.
are fixed with screws 7 or the like, and a guide hole 6a is formed in this fixing plate 6. An operating knob 5a provided on the sliding plate 5 protrudes from the guide hole 6a, so that the knob 5a moves only along the guide hole 6a.

The guide hole 6a is a first hole extending perpendicularly to the direction in which the interlocking protrusion 3a of the switch device 3 moves.
A hole N and an interlocking protrusion 3 from both ends of the first hole N.
a second hole L extending in opposite directions to the moving direction of a;
It is formed by the third hole R.

However, when the interlocking protrusion 3a is in the OFF position as shown, the operating knob 5a is in the first position of the guide hole 6a.
This guide hole 6a is positioned so as to protrude from the hole N.

The operation of the slide switch 1 described above will be explained below.

When the operation knob 5a is in the first hole N of the guide hole 6a as shown in FIGS. 1 and 2, it is in the OFF state, and when the knob 5a is moved along the first hole N ( 1), the guide groove 5b of the sliding plate 5 moves in its longitudinal direction and no driving force is applied to the interlocking protrusion 3a, so it remains in the OFF state even in this operating position.

When the operation knob 5a is moved along the second hole L from the position shown in FIGS. 1 and 2, the sliding plate 5 slides to the left, so that the guide groove 5
The interlocking protrusion 3a fitted in b moves in the same direction.
It becomes ON state. (See Figure 5a) If the operating knob 5a is moved along the first hole N and then moved along the third hole R, the sliding plate 5 In the figure, the interlocking protrusion 3a is slid upward and then to the right.
moves to the right in FIGS. 1 and 2 and enters the ON state. (See Figures 5b and 5c) In addition, when the ON operation is performed along the second hole L or the ON operation is performed along the third hole R, the operation knob 5a is By moving back into the hole N, both will be in the OFF state.

Therefore, when moving the operating knob 5a to the OFF position, the position is always regulated by the first hole N.
This knob 5a never passes through the OFF position.

FIG. 6 shows an embodiment in which a flashlight emitter circuit for photographing is equipped with the above slide switch 1. In this circuit, the slide switch 1 includes a power switch 8 and a selection switch 11 that switches between integrating capacitors 9 and 10 in accordance with the setting value of the camera aperture (for example, F: 4, F: 8). The illustrated state of these switches 8 and 11 shows the case where the slide switch 1 is turned on along the second hole L, and when the operating knob 5a is moved to the first hole N, the switches move to the contacts 8N and 11N. , when this knob 5a is turned on along the third hole R, it moves to the contacts 8R and 11R.

Since the above-mentioned flashlight emitter circuit is well known, the circuit description will be limited to the circuit directly related to the above-mentioned switches 8, 11. As a result of moving the operation knob 5a back to the first hole N, each switch 8, 11 moves to the contact point 8N, 11N, and the oscillation of the power supply circuit 12 is stopped and the circuit of each integrating capacitor 9, 10 is opened. Ru.

By moving the operation knob 5a along the second hole L,
When turned ON, the switches 8 and 11 move to the contacts 8L and 11L as shown in the figure, so the power supply circuit 12 starts and the photo transistor 1
3 and, for example, an integrating capacitor 9 corresponding to an aperture setting value F:4 are connected in a circuit. Therefore,
When the flash discharge tube 14 emits light, the photoelectric conversion signal of the photo transistor that has received the reflected light from the object is integrated by the integrating capacitor 9, and the quench tube 15 is turned on according to this integrated value, so that the flash discharge occurs at this point. The tube 14 stops emitting light.

When the operation knob 5a is moved along the third hole R, the switches 8 and 11 are connected to the contacts 8R and 11.
Since the transition is to R, the power supply circuit 12 is started and the integrating capacitor 10 is selected. Since this capacitor 10 corresponds to, for example, an aperture setting value F:8, the quench tube 15 is made conductive in accordance with the integral value of this capacitor 8 in the same manner as described above, and the flash discharge tube 14 is turned on.
stops emitting light.

Note that the guide hole 6a formed in the fixing plate 6 has a first hole N that is elongated as shown in FIGS. 7a and 7b.
Further, the same effect can be obtained even if the length is shortened.

As mentioned above, in the present invention, movement of the operating knob between the ON position on one side and the OFF position in the center, or movement of the operating knob between the ON position on the other side and the OFF position in the center, is performed using separate holes. Since the position is regulated depending on the part, the OFF-ON operation on one side and the OFF-ON operation on the other side are ensured, and
This also applies when returning the operation knob to the OFF position.
Because there is no risk of passing the OFF position,
Easy to operate the operation knob.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention; FIG. 1 is a partially cutaway front view of a slide switch according to the present invention, FIG. 2 is a cross-sectional view taken along line A-A in FIG. FIG. 4 is a perspective view showing the back side of the sliding plate incorporated in the switch, FIGS. 5 a, b, and c are explanatory views showing the moving positions of the operating knob.
FIG. 6 is a circuit diagram showing an embodiment in which the above-mentioned switch is installed in a flash light emitter circuit for photography, and FIGS. 7a and 7b are simplified diagrams showing a modified guide hole for guiding an operating knob. DESCRIPTION OF SYMBOLS 1...Slide switch, 2...Switch body, 3...Switch device, 3a...Interlocking protrusion, 4
...Chamber, 5...Sliding plate, 5a...Operation knob, 5b
...Guide groove, 6...Fixing plate, 6a...Guide hole, N
...First hole, L...Second hole, R...Third hole.

Claims (1)

[Scope of utility model registration request] A switch mechanism that turns off a linearly movable interlocking protrusion by moving it to the center position and turns it on by moving the protrusion in one direction or the other from the center position, and the movement of the interlocking protrusion. a sliding plate having a guide groove and an operation knob extending perpendicularly to the direction, and having the interlocking protrusion fitted into the guide groove; and a first hole extending perpendicularly to the moving direction of the interlocking protrusion. , a guide hole consisting of second and third holes extending in opposite directions from both ends of the first hole in the direction of movement of the interlocking protrusion, and the operating knob protrudes from the guide hole; The operating knob is connected from the first hole to the second hole or the first plate.
A slide switch in which the interlocking protrusion is moved to ON and OFF positions via a sliding plate by moving from the hole along the third hole.