JPS5928476Y2 - Emergency bell inspection switch device - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to an improvement of an emergency bell inspection switch device.

In this type of conventional device, the emergency bell equipment case is formed by joining the upper and lower cases, and the microswitch for the inspection switch is attached to the bottom plate of the lower case in a vertical position, that is, so that its push button can be moved horizontally, and the upper case is attached to the bottom plate. The operating body has a pivot shaft perpendicular to the pivot shaft and rotates within a certain range around the pivot shaft to press and bias the push button.

Therefore, since the microswitch is installed vertically regardless of the printed board on which the emergency bell control circuit components are attached, the connecting terminal protruding from the back side of the microswitch (side surface opposite to the push button) and the foil conductor or terminal on the printed board are connected. Connections must be made with lead wires, which has the drawback of poor assembly workability and high cost.

The present invention has been devised in view of these points, and one embodiment of the present invention will be described below with reference to the drawings.

1.2 is the upper and lower cases that constitute the equipment case of the emergency bell, and as shown in FIG. By fixing screws 5 to the U-shaped metal fittings 4 of the lower case 2 from the upper surface of the upper case 1, the upper and lower cases 1 and 2 are coupled and fixed.

A lens frame 7 into which a hemispherical red lens body 6 is screwed is fixed to the upper case 1 by screws (not shown), and is also attached to the front of a push button 8 of a start switch provided in the lower case 2, and is broken when pressed by a finger. A holding frame 10 for the transparent thin plate 9 is attached with screws (not shown) or the like.

A printed board 13 is attached to the lower case 2 together with a battery 11, a step-down transformer 12, etc. that serve as a power source during a power outage.

The printed board 13 is attached to the bottom plate 14 of the lower case 2 substantially parallel to the bottom plate.

In other words, the printed board 13 has its ears 15, 15 at one end attached to the vertical support plate 16 attached to the bottom plate 14) 17.17
The terminal block 18 attached to the other end of the terminal block 18 is screwed into the U-shaped holding frame 20 provided on the bottom plate 14, thereby fixing the terminal block 18 to the printed board 13.

On the printed board 13, in addition to the terminal block 18, there are emergency bell control circuit components 21. Socket 23 of indicator light 22, fuse 24
And a micro switch 25 for inspection switch is attached.

The microswitch is mounted in a horizontal position, that is, in such a way that the connection terminal protruding from the bottom surface of the microswitch is directly connected to the foil conducting portion of the printed board 13.

Therefore, the push button 26 of the microswitch 25 is movable in the vertical direction.

27 is integrated with a resin cover that covers the control circuit component 21, and has a pair of opposing latching claws 28 and a movable arm piece 29 that presses the push button 26 of the microswitch 25 by being movable.
A pair of latching claws 28 are connected to each latching hole 30 of the printed board 13, respectively.
It is fixed by attaching it to.

The movable arm piece 29 has a horizontal base end 31 and a vertical part 3 at the tip thereof.
2 and a horizontal operating part 33 at its upper end, a curved thin part 34 is formed at the horizontal base end 31, and a lower end of the vertical part 32 engages with an engaging hole 35 of the printed board 13. It has a protrusion 36.

Next, a projecting window 37 for the indicator light 22 is bored in the upper case 1 as shown in FIG.
8 is formed, and a sliding groove 39 connected to the protruding window 37, a pivot hole 40, and a substantially triangular rotation regulating groove 41 communicating with the pivot hole are bored in the recessed step. ing.

Reference numeral 42 is an operating body made of resin and has an intermediate protrusion 43 that rotatably engages with the pivot hole 40, and at the tip protrudes downward from the sliding groove 39 into the upper case 1, and when rotated, is connected to the movable arm piece 29. A pressing piece 44 that applies a movable force parallel to the bottom plate 14 is provided, and the intermediate protrusion 43 is integrally formed with a thin flexible piece 46 along the long bottom side 45 of the rotation regulating groove 41. An operating knob 47 is provided at a position spaced apart from the section 43.

The operating body 42 is rotatably held by attaching the lens frame 7 to the upper case 1 with its intermediate protrusion 43 engaged with the pivot hole 40 .

In the above configuration, the operating body 42 is located at the solid line position in FIG.
That is, the flexible piece 46 is along the long base side 45 of the rotation regulating groove 41,
The pressing piece 44 is located apart from the movable arm piece 29.

Here, an operation knob 47 protruding outward from the lens frame 7
When rotated in the direction of the arrow in FIG. 1, the pressing piece 44 presses the movable arm piece 29 as shown by the broken line, and the movable arm piece rotates clockwise in FIG. 1 about the protrusion 36 as a fulcrum.

Therefore, the push button 26 of the microswitch 25 is pressed by the horizontal actuating portion 33 of the movable arm piece 29, and the microswitch 25 is pressed.
Switch 5.

In this case, in order to increase the movable range of the push button 26 with respect to the clockwise rotation range of the movable arm piece 29, the lower surface 48 of the horizontal operating portion 33 is formed into an inclined surface.

When movable, the flexible piece 46 of the movable arm piece 29 is bent along the adjacent short sides 49 and 50 of the rotation regulating groove 41, and the operating body 4
Accumulates 2 resilience.

Therefore, when the rotational force is removed from the operating body 42, the restoring force of the curved flexible piece 46 returns it to the initial state shown by the solid line in FIG.

Next, FIG. 4 shows another embodiment of the movable arm piece 29 provided on the cover unit 27, in which the horizontal base end 31' does not have the curved thin part 34 and the vertical part The difference is that 32' is thinner so that it can be bent, but micro switch 2
The pressing action of the push button 26 in No. 5 is the same.

As described above, according to the configuration of the present invention, the inspection switch microswitch is directly attached to the printed board, and the push button of the microswitch is pressed by the movable unit integrated with the cover of the emergency bell control circuit component attached to the printed board. Since a movable arm piece is provided and an operating body is provided that applies a horizontal movable force parallel to the printed board to the movable arm piece, the movable arm piece converts the horizontal movable force into a vertical pressing force for pressing the push button. be able to.

Therefore, the connection terminal protruding from the lower surface of the microswitch can be directly connected to the foil-conducting portion of the printed board, which improves assembly workability and contributes to cost reduction.

[Brief explanation of drawings]

The drawings show the device according to the present invention, in which Fig. 1 is a sectional view of the emergency bell, Fig. 2 is an exploded perspective view of essential parts, Fig. 3 is a partial plan view of the upper case, and Fig. 4 shows different implementations of the movable arm piece. FIG. 2 is a partially cutaway partial front view showing an example. 2...Lower case, 14...Bottom plate, 13
...Printed board, 25...Micro switch, 21...Control circuit parts, 27...
・・Cover, 26・・Push button, 29・・・・
・Movable arm piece, 1... Upper case, 42...
・Operation body.

Claims (1)

[Scope of utility model registration request] An inspection switch microswitch is directly attached to a printed board that is attached parallel to the bottom plate of the lower case, and an emergency bell control circuit component is attached thereto, and a cover is attached to the printed board so as to cover the control circuit component. is provided with a movable arm piece that presses a push button of the microswitch by movability, and an operating body that applies a movable force parallel to the bottom plate to the movable arm piece is provided on the upper case coupled to the lower case. Emergency bell inspection switch device.