JPH0748338B2 - Switch device - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a switch device, and in particular, interlocks with a pressing operation of an operation arm that is disposed in a cabinet and has a knob exposed from the cabinet through an insertion hole at one end. The present invention relates to a switch device that operates in the same manner.

[Conventional technology]

As an example of this type of switch device, there is known a switch device used in a portable video camera powered by a detachable battery pack 2 as shown in FIG. 2, for example. 2 (a) shows a state in which the battery pack 2 is attached to the video camera body 1, and FIG. 2 (b).
Shows an example of how to remove and attach the battery pack 2. Removal of the battery pack 2 is achieved by sliding the battery pack 2 in the direction of the solid arrow in FIG. 2 (b) to remove it from the engaging portion on the video camera body 1 side, and then pulling in the direction of the solid arrow. It On the contrary, when the battery pack 2 is mounted, it is indicated by a broken line arrow,
Operate in the order of. Such a portable video camera is generally provided with a microswitch device for a power supply circuit that operates in conjunction with the mounting operation in the mounting portion of the battery pack 2, and is used with the battery pack 2 in an imperfectly mounted state. This prevents the ICs inside the video camera from being damaged and the circuits from malfunctioning due to spike noise that occurs during mounting.

Conventionally, the microswitch device shown in FIG. 3 has been known. In FIG. 3, reference numeral 10 is 3
Micro switch with terminals 16, 17, and 18
The opening / closing operation is performed by the operation piece 12 which rotates around the. Although the micro switch 10 is also provided with a through hole 14 for screwing, the terminals 16, 17, 18 are fixed to the printed wiring board 60 by solder 66 without screwing in this conventional example.
The operation piece 12 of the micro switch 10 is biased upward in FIG. 3 by using a spring or the like (not shown). The printed wiring board 60 to which the micro switch 10 is fixed is
The operation lever 40, which is fixed to the fixed shafts 32 and 34 provided in the cabinet 30 of the video camera main body 1 by 2, 64 and which is formed by processing a thin metal plate, is provided in the cabinet 30 of the video camera main body 1 with the operation piece 12 of the micro switch 10. They are in contact with each other and fixed by screws 46. The operating lever 40 includes a flexible portion 44 and a pressing spring 42, and the pressing spring 42 causes the convex knob 50 to operate.
The convex portion 52 of the convex knob 50 is fixed to the flexible portion 44 of the 40.
Is an insertion hole provided in the cabinet 30 of the video camera body 1.
It is arranged so as to be exposed at a position where the engaging piece 22 of the battery pack 2 slides through the 36. Further, the cabinet 30 is provided with a hooking piece 38.

In the conventional switch device thus configured, the battery pack 2 is installed in the cabinet 30 of the video camera body 1.
When the battery pack 2 is mounted on the battery pack 2, the battery pack 2 is slid rightward in FIG. 3 along the cabinet 30 and the engagement piece 22 of the battery pack 2 is engaged by the cabinet side engagement piece 38. Is fixedly supported. At this time, the engaging piece 22 of the battery pack 2 presses the convex portion 52 of the convex knob 50 exposed from the cabinet 30, as shown in FIG. Along with this, the flexible portion 44 bends downward in FIG. 3, pushing down the operation piece 12 of the microswitch 10 to close the switch.

Conversely, when removing the battery pack 2 from the video camera body 1, the battery pack 2 may be slid to the left in FIG. 3, and the engaging piece 22 of the battery pack 2 may be removed from the engaging piece 38 of the cabinet 30. . At this time, the convex portion 52, which has been pressed by the engaging piece 22 of the battery pack 2, becomes the operating lever 40.
The spring action of returns to the original state and exposes it from the cabinet 30. Therefore, the operation piece 12 of the micro switch 10 also returns to the upward direction in FIG. 3 and the switch opens.

[Problems to be Solved by the Invention]

However, in the above-mentioned conventional switch device,
The metal operation lever 40 for operating the operation piece 12 of the micro switch 10 is screwed into the cabinet 30 of the video camera body 1.
The work of fixing at 46 is the work of attaching to a small area of the small video camera, and as shown in the perspective view of FIG.
A small plastic convex knob on the control lever 40 itself
Preparatory work for mounting the 50 was also necessary, and these were extremely complicated operations.

Further, in order to further reduce the size and cost of such portable electronic equipment, it is necessary to reduce the number of parts and complicated work, and it is desired to develop a smaller and simpler switch device. ing.

Therefore, an object of the present invention is to provide a switch device that works in conjunction with a pressing operation of a knob exposed from an insertion hole of a cabinet, which can be manufactured at low cost by reducing the number of parts and complicating assembly work. An object of the present invention is to provide a switch device capable of performing a stable switch operation.

[Means for Solving the Problems]

In the switch device according to the present invention, a switch main body having an operation piece for setting a mode of a micro switch by pressing is fixedly arranged inside a cabinet, and two parallel arms and these arms are provided above the switch main body. An operating arm having a flat portion formed by integrally connecting these at one end of the operating arm is arranged, and the flat portion at one end of the operating arm is brought into contact with the upper portion of the operating piece of the switch body, and A knob is partially provided, the other ends of the two parallel arms of the operation arm are rotatably attached to the other end side of the switch body, and the knob provided on the operation arm is provided on the cabinet. The operation surface of the cabinet is operably exposed through the insertion hole, and the operation arm is operated in association with the pressing operation of the knob from the cabinet operation surface. Characterized by configured to operate the operating piece of the micro switch through.

[Action]

According to the switch device of the present invention, the operation arm having the knob at one end is hung on the operation piece of the switch body, and the other end of the operation arm is rotatably installed on the switch body. All that is required is to mount the switch main body so that the knob is exposed, and by the operation of pressing the knob from the outside of the cabinet, the operation arm integrated with the knob rotates to push down the operation piece of the switch main body, Can be closed.

Further, when the cause of the pressing on the outside of the cabinet is removed, the switch is opened and the operation arm having the knob is pushed up by the operation piece of the switch body, and the original knob returns to the position exposed from the insertion hole of the cabinet. Therefore, the switch device can be configured without the need for the complicated work of separately placing and fixing the operation lever separately from the switch body as in the related art.

〔Example〕

An embodiment of a switch device according to the present invention will be described in detail below with reference to the accompanying drawings.

FIG. 1 is an enlarged side view of essential parts showing an embodiment of the switch device of the present invention. The same components as those of the conventional switch device shown in FIG. 3 are designated by the same reference numerals for convenience of description. In FIG. 1, reference numeral 22 is a hook of the battery pack 2, which slides along the cabinet 30 of the video camera body 1. The printed circuit board 60 is soldered to the microswitch 10 having the operation arm 70, and the fixed shaft 32, 34 of the cabinet 30 is screwed 62, so that the knob 72 of the operation arm 70 is exposed from the board 60.
Fixed by 64. That is, in the embodiment of the present invention, in the conventional switch device, the operation lever 40 having the convex knob 50 and the flexible portion 44 is arranged separately from the switch body, whereas the integrally molded product having the knob 72 is provided. The operation arm 70 is attached to the main body of the micro switch 10 for use.

FIG. 4 is a model perspective view showing a state in which the operation arm 70 is attached to the microswitch 10, and it can be seen that the operation arm 70 comprises two parallel arms 74 and 76, a flat portion 78 and a knob 72. . A short shaft is provided at the tip of each of the arms 74 and 76 (not shown). The short shaft is provided in the screw mounting through hole 14 of the microswitch 10, and the operating arm 70 is provided around the through hole 14 as an axis. The operation arm is fitted so that it can rotate.
The flat portion 78 of 70 is placed on the operation piece 12 of the microswitch 10. The operation piece 12 pushes up the flat portion 78.

Next, the operation of the switch device of the present invention of FIG. 1 configured as described above will be described. First, the battery pack 2
When installing the cabinet 30 of the video camera main body 1, install the battery pack 2 in the right direction in FIG.
The battery pack 2 is fixedly supported by sliding along the line 30 and engaging the engaging piece 22 of the battery pack 2 with the cabinet side engaging piece 38. At this time, the engaging piece 22 of the battery pack 2 presses the knob 72 of the operation arm 70 exposed from the insertion hole 36, so that the operation arm 70 rotates downward about the through hole 14 of the microswitch 10 as an axis. Then, along with this, the operation piece 12 of the microswitch 10 in contact with the flat portion 78 of the operation arm 70 is pushed down, and the switch is closed.

On the contrary, when removing the battery pack 2 from the cabinet 30 of the video camera body 1, the battery pack 2 should be removed first.
After sliding along the cabinet 30 in the left direction of the figure to remove the engaging piece 22 of the battery pack 2 from the engaging piece 38 of the cabinet 30, it may be pulled upward in FIG. At this time, the operation arm 70 pressed by the engaging piece 22 of the battery pack 2
Since the knob 72 is opened, the pushing force of the operation piece 12 of the micro switch 10 returns the knob 72 of the operation arm 70 to the original state, that is, the state exposed from the insertion hole 36 and the switch is opened.

Here, for the operation arm 70 having the knob 72, it is preferable to use an integrally molded plastic product because it is lightweight and inexpensive. Of course, a metal stamped product can be used because it can be processed into a similar shape, but in that case, the operation arm 70 needs to be light enough to be pushed up by the operation piece 12 of the microswitch 10.

In addition, for convenience of explanation of the drawings, the hooking piece 38 of the cabinet 30 is
Although the knob 72 of the operation arm 70 is shown at a position exposed from the insertion hole 36, the battery pack 2 is provided with a plurality of engaging pieces 22, and the engaging piece 38 is installed at the position of another engaging piece. However, the position is not limited to the position shown in the drawing of this embodiment.

FIG. 6 is a side view of a switch device according to another embodiment of the present invention, in which the operation piece 13 of the switch body 11 is of a push switch type which moves up and down. In this embodiment, the same parts as those of the switch device shown in FIG. In this case, since the operation piece 13 does not project laterally of the switch body unlike the operation piece 12 of the above-described embodiment, there is an advantage that space can be further reduced in size.

〔The invention's effect〕

As is apparent from the above-described embodiments, according to the switch device of the present invention, since the operation arm having the knob at one end is directly attached to the switch body, the metal operation lever in the conventional switch device is narrow in the cabinet. The complicated work of separately mounting the switch main body to the switch main body with screws and the work of mounting a small convex knob to the metal operating lever are eliminated, and a switch device which is smaller in space is configured. be able to.

Further, the operation arm having a knob at one end in the present invention can be made of a plastic integrally molded product, and the method of attaching it to the switch body is simply by inserting it by using the screw-through hole in the conventional microswitch. Since it is only necessary to process the spring that presses the convex knob against the metal operation lever and the screwing work to the cabinet as in the past, the number of parts used is the same as the conventional metal plate.
The number of convex knobs and screws can be reduced from three to only one, and there are many advantages such as no special design change for attaching the operation arm to the switch body.

Therefore, according to the present invention, it is possible to realize a switch device which does not require complicated mounting work, uses a small number of parts, and is compact and inexpensive.

Although the preferred embodiment of the present invention has been described above, the switch device is not limited to the switch for the power circuit of the portable video camera using the detachable battery pack as a power source, and is provided on the operation surface of the cabinet. It is needless to say that the present invention is applicable to switch devices in general and various modifications can be made without departing from the spirit of the present invention.

[Brief description of drawings]

FIG. 1 is an enlarged side view of an essential part showing an embodiment of a switch device according to the present invention, and FIGS. 2 (a) and 2 (b) are a mounting state and a mounting / removing method of a battery pack of a video camera powered by the battery pack. FIG. 3 is a schematic diagram for explaining the structure of the conventional switch device, FIG. 3 is an enlarged side view of a main part showing the structure of the conventional switch device, FIG. 4 is a perspective view showing the structure of the switch device of the present invention, and FIG. FIG. 6 is a perspective view showing the structure of the lever, and FIG. 6 is a side view of a switch device showing another embodiment of the present invention. 1 ... Video camera main body, 2 ... Battery pack 10,11 ... Micro switch 12,13 ... Operating piece, 14 ... Through hole 15 ... Shaft hole, 16, 17, 18 ... Terminal 22 ... Battery pack engaging piece 30 ... Cabinet, 32, 34… Fixed shaft 36… Insertion hole, 38… Latch piece 40… Metal operating lever, 42… Pressing spring 44… Flexible part, 46… Screw 50… Convex knob, 52… Convex part 60… Printed wiring Board, 62,64 ... Screw 66 ... Solder, 70 ... Operation arm 72 ... Knob, 74,76 ... Arm

Claims (1)

[Claims] 1. A switch main body having an operation piece for setting a mode of a micro switch by pressing operation is fixedly arranged inside a cabinet, and two parallel arms and one end of these arms are provided above the switch main body. An operation arm having a flat portion formed by integrally connecting these is arranged, and the flat portion at one end of the operation arm is brought into contact with the upper portion of the operation piece of the switch body, and a part of the flat portion is provided. A knob is provided in a protruding manner, the other ends of the two parallel arms of the operation arm are rotatably attached to the other end side of the switch body, and the knob provided on the operation arm has an insertion hole provided in the cabinet. Through the operation arm of the cabinet, and the microphone is operated via the operation arm in association with the pressing operation on the knob from the operation surface of the cabinet. Switch device, characterized in that configured to operate the operating piece of the switch.