JPH0836933A - Emergency pushbutton mounting structure of electronic apparatus - Google Patents

Abstract

PURPOSE:To facilitate works by allowing an emergency push-button to be installed from outside a cover and to accomplish a small construction by locating a switch for emergency button in the neighborhood of a spring installed in the emergency pushbutton. CONSTITUTION:At the bottom wall 2h of a recess 2b formed in a cover 2. holes 2i, 2j are provided where an indicator lamp 7 for emergency button and a switch 12 for emergency button are protruded. A spring 24 is formed in an inverted truncated cone which is inverted, and is located between the bottom wall 2h of the recess 2b and the upper wall 25a inner surface of an emergency pushbutton 25, which is thus energized outward. In installing, the spring 24 and pushbutton 25 are inserted into the recess 2b from outside the cover 2. A projecting claw 25b for detention formed on a part of the peripheral side wall 25c of the pushbutton 25 is engaged by a detention hole 2m formed at the peripheral wall 2k of the recess 2b so that the pushbutton 25 is prevented from slipping off. Because the bottom of the spring 24 has a small outside diameter, the switch 12 for emergency button can be installed in the space to the peripheral wall 2k of the recess 2b.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for mounting an emergency push button in electronic devices such as security hands-free intercoms and portable communication devices.

[0002]

2. Description of the Related Art As shown in FIG. 7, the mounting structure of an emergency push button in a conventional electronic device is such that an emergency button indicator light b and an emergency switch c are provided side by side on a base portion a. The cover portion d integrally attached to the is formed with a hole g for inserting and arranging the emergency push button f having the locking flange e from the inside (base side), and is provided in the hole g. Further, the spring body h is arranged between the inner surface of the upper wall of the emergency push button f and the inner surface of the base portion a.

Then, the spring pusher h urges the emergency push button f outwardly, and the locking collar e contacts the inner surface of the cover d, so that the emergency push button f is brought to a predetermined position in the electronic device. It is arranged so that it can be pushed.

[0004]

However, in this conventional mounting structure, since the spring body h must be assembled with the spring body h disposed on the emergency push button f side, the position of the spring body h is There is a problem that it is difficult to decide and it is difficult to perform the assembling work, and furthermore, the emergency push button f has to be arranged from the rear surface side of the cover part d, so that the assembling work is difficult to perform.

Further, since the outer diameter of the spring body h is the same in the vertical direction, a large space for arranging the spring body h must be taken. Therefore, the emergency switch c should be located near the emergency push button f. Since it cannot be installed at a certain position, the installation position becomes a position away from the emergency button indicator light b, the installation space becomes large, and further, the emergency push button for operating the emergency switch c. Since the diameter of the locking flange portion e of f on the side of the emergency switch e has to be increased, there is a problem that the size becomes large.

The present invention has been made in view of the above conventional problems. Since the emergency push button can be assembled from the front side of the cover portion, the emergency push button can be easily assembled and the emergency switch can be installed. It is an object of the present invention to provide an attachment structure for an emergency push button in an electronic device that can be arranged in the vicinity of the emergency push button, can reduce the space, and can be downsized as a whole.

[0007]

DISCLOSURE OF THE INVENTION The present invention has been proposed to achieve the above object, and the mounting structure for an emergency push button in an electronic device according to claim 1 has an internal indicator light for an emergency button. In an electronic device constituted by integrally mounting a cover part in which a recess for inserting an emergency push button is formed integrally on a base part on which the emergency switch and the emergency switch are installed, The bottom wall is formed with a hole projecting the emergency button indicator light and the emergency switch, and between the bottom wall of the recess and the inner surface of the emergency push button upper wall, from the bottom wall side. An inverted frustoconical spring body that gradually expands in diameter toward the upper wall of the push button and biases the emergency push button outward is provided, and engages with a locking hole formed in the peripheral wall of the recess. The locking projection claw that is inserted and locked in the locking hole prevents the emergency push button from slipping off. Are those formed in a part of the wall.

According to a second aspect of the present invention, there is provided a mounting structure for an emergency push button in an electronic device, wherein the operating portion of the emergency switch is arranged in the vicinity of the spring body and is operated by the emergency push button. It is a thing. In the mounting structure of the emergency push button in the electronic device according to claim 3, the bottom wall of the recess is
The bottom edge of the emergency push button comes into contact with it and also serves as a stopper for restricting excessive push of the push button.

According to a fourth aspect of the present invention, there is provided a mounting structure for an emergency push button in an electronic device, wherein the spring body has a diameter gradually increasing from the bottom wall side of the recess toward the top wall side of the push button, and the inner surface is a light reflecting surface. It is composed of a coil spring.

[0010]

According to the mounting structure for the emergency push button in the electronic device of the first aspect of the invention, the inverted frustoconical spring body is provided around the protruding portion of the emergency switch in the recess of the cover portion integrally attached to the base portion. The spring body is arranged such that the end of the spring is positioned, and then the emergency push button is fitted into the recess.

Then, the locking projection claw portion of the emergency push button enters into the locking hole formed in the peripheral wall of the recess and is locked, so that the emergency push button is locked in the recess in the retaining state. It can be fitted. If the emergency push button is pressed from the outside in this state, the emergency push button is embedded in the recess against the biasing force of the spring body, and the emergency switch is pressed to turn on the emergency switch. Then, the emergency button indicator light is turned on and an alarm sounds through the signal processing unit.

According to the mounting structure of the emergency push button in the electronic device of the second aspect, since the operating portion of the emergency switch is arranged in the vicinity of the spring body, the emergency button indicator lamp and the emergency switch are provided. The arrangement interval is reduced, and space can be saved. According to the mounting structure of the emergency push button in the electronic device of claim 3, when the emergency push button is pushed, the bottom edge of the emergency push button comes into contact with the bottom wall of the recess also serving as the stopper, and therefore the push button is pushed further. Never be

According to the mounting structure for the emergency push button in the electronic device of the fourth aspect, the spring body gradually expands in diameter from the recess bottom wall side toward the push button upper wall side, and the inner surface serves as a light reflecting surface. Since it is composed of the coil spring, the light from the indicator light for the emergency button is reflected by the light reflecting surface on the inner surface of the plate coil spring, so that the emergency push button is easier to see than the outside.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a mounting structure for an emergency push button in an electronic device according to the present invention will be described below with reference to the drawings. In this embodiment, the mounting structure of the present invention is applied to a security hands-free intercom, but the present invention is not limited to this, and can be applied to other electronic devices such as portable communication devices.

FIGS. 1, 2 and 4 show an essential part of the mounting structure of this embodiment, and FIG. 3 shows a security hands-free intercom S to which the mounting structure of this embodiment is applied.
3 is an exploded view of the entire structure of I. FIG. First, it demonstrates based on FIG. The security hands-free intercom SI includes a base portion 1, a cover portion 2 that is engaged and fixed to the base portion 1, and a printed circuit board 3 provided inside the base portion 1 and the cover portion 2. Has been.

The printed circuit board 3 is provided with a lateral compact transformer 4 having a transformer printed circuit board 4a mounted and fixed on the bottom surface thereof, a speaker 5 for communication and a microphone 6 for communication. As an indicator light, an emergency button indicator light 7, an emergency indicator light 8, a gas indicator light 9, a current indicator lamp 10, a call indicator lamp 11, etc. are attached, and as a switch, an emergency switch 12, an alarm stop A switch 13, a call switch 14, a gas non-connection detection switch 15, an intercom ringing volume switching switch 16 and the like are attached. Further, a gas non-connection operation section 17 is provided on the front side of the gas non-connection detection switch 15, and a door phone ringing volume operation section 18 is provided on the front side of the door phone ringing volume changeover switch 16.

Between the base portion 1 and the printed circuit board 3,
A connection terminal plate 19 such as an intercom is provided, and these are attached by a plurality of terminal screws 20. Base part 1
A U-shaped frame-shaped transformer holding portion 21 for fixing the coil portion 4b of the small-sized transformer 4 is provided upright. A decorative plate 23 is fitted into a concave portion 2a formed on the upper surface of one cover portion 2, and a circular recess 2b formed in the concave portion 2a and a circular hole 23a of the decorative plate 23 are shown in FIG. As described above, the emergency push button 25 in which the spring body 24 made of a coil spring is installed is fitted, and the recess 2b corresponds to the emergency button indicator light 7 and the emergency switch 12 mounted on the printed circuit board 3. Is formed in position.

The cover portion 2 and the decorative plate 23 are provided with an alarm stop switch 13 attached to the printed circuit board 3.
Through holes 2c and 23c are formed at the positions corresponding to, and the alarm stop push button 26 is fitted into these through holes 2c and 23c. Further, the decorative board 23 includes the printed circuit board 3
Which are attached to the emergency indicator lamp 8, the gas indicator lamp 9, and the energizing indicator lamp 10 are respectively attached to the emergency indicator section 2
7, a gas display unit 28, and an energization display unit 29 are provided, and the cover unit 2 includes the emergency display unit 27, the gas display unit 28,
The hole 2 for transmitting light of the emergency indicator lamp 8, the gas indicator lamp 9, and the electricity indicator lamp 10 is provided at a position corresponding to the electricity indicator portion 29.
n are formed respectively.

Further, the cover portion 2 is formed with a recess 2d into which the call operation plate 30 is fitted, and the engaging claw 30a provided on the call operation plate 30 is engaged with the recess 2d. The locking hole 2e and a pair of holes 2f for fitting the pair of mounting projections 30b provided on the call operation plate 30 are formed. On the lower surface side of the call operation plate 30, a protrusion 30C for turning on / off the call switch 14 is projected downward. Furthermore, at the lower edge of the cover portion 2,
A pair of left and right fitting claws 2 for attaching and fixing to the base portion 1
g (only one of which is shown in the figure) is provided in a protruding manner.

FIG. 5 is a system configuration diagram of a security hands-free intercom SI to which the mounting structure of this embodiment is applied. On the upper side of the surface of the security hands-free intercom SI, an internal emergency button is provided. Emergency push button 25 through which the lighting light of the indicator lamp 7 is transmitted to the surface
The emergency display section 27, the gas display section 28, the energization display section 29, and the alarm stop push button 26 are provided in an exposed state, and the call operation board 30 and the call operation are provided on the lower side. A call display section 32 that transmits the lighting light of the call indicator lamp 11 is disposed in an exposed state on a part of the plate 30, and a plurality of speaker sound holes 33 are formed in a substantially central portion in the longitudinal direction. .

Such a security hands-free intercom SI includes a doorphone 34 arranged at the entrance.
Also, a gas sensor 35 arranged on the ceiling, an external emergency push button 36 installed in an appropriate place in the room, an extension speaker 37, etc. are connected via wirings L1, L2, L3, L4, respectively. The free intercom SI and the gas sensor 35 are supplied with an AC 100V power source (not shown).

Next, the mounting structure of this embodiment will be described with reference to FIGS. 1, 2 and 3. Holes 2i, 2j are formed in the bottom wall 2h of the recess 2b of the cover portion 2 so as to project the emergency button indicator light 7 and the emergency switch 12, and the bottom wall 2h of the recess 2b and the recess 2b. Upper wall 2 of emergency push button 25
The diameter of the emergency push button 25 is gradually increased from the bottom wall 2h to the upper wall 25a of the emergency push button 25 between the inner surface of the emergency push button 25 and the inner surface of the emergency push button 25a.
A spring body 24 composed of an inverted frustoconical coil spring for urging the coil outward is provided.

A locking projection claw that is engaged with a locking hole 2m formed in the peripheral wall 2k of the recess 2b and is locked in the locking hole 2m to prevent the emergency push button 25 from coming off. Part 25b
Is formed at an end of a projecting piece 25d projecting downward on a part of the peripheral side wall 25c of the emergency push button 25. The operating portion 12a of the emergency switch 12 is projected from the hole 2j formed in the bottom wall 2h, and is pushed by the pushing portion 25e formed on the bottom edge of the peripheral side wall 25c of the emergency push button 25. The bottom wall 2h of the recess 2b is brought into contact with the bottom edge of the peripheral side wall 25c of the emergency push button 25 when the emergency push button 25 is pressed, whereby the emergency push button 25 is pressed. Also serves as a stopper to prevent excessive pushing. In addition, after the small transformer 4 is turned sideways, the coil portion 4b of the small transformer 4 is fitted into the U-shaped frame-shaped transformer holding portion 21 of the base portion 1 and then the holding piece 2S protruding from the cover portion 2 is made small. The transformer printed circuit board 4a fixed to the bottom surface of the transformer 4 is configured to be fitted and fixed in the notch 4C.

Next, the mounting procedure of the mounting structure for the emergency push button of this embodiment will be described. A small-diameter end of an inverted truncated cone-shaped spring body 24 so as to surround an upward flange 2q formed on a hole edge of a hole 2p for inserting the emergency button indicator light 7 in the recess 2b of the cover 2. Body 2 and then spring body 2
4 is provided, and then the emergency push button 25 is fitted into the recess 2b.

Then, the locking projection claw portion 25 of the emergency push button 25
b is a locking hole 2m formed in the peripheral wall 2k of the recess 2b.
Since the emergency push button 25 is inserted and locked, the emergency push button 25 is fitted into the recess 2b in a state where it does not come off. In this state,
When the emergency push button 25 is pressed from the outside, the emergency push button 25
Is embedded in the recess 2b against the urging force of the spring body 24 and presses the operating portion 12a of the emergency switch 12, so that the emergency switch 12 is turned on.

When the emergency switch 12 is turned on,
At the same time that the emergency button indicator light 7 is turned on, an alarm is sounded from the extension speaker 37 (see FIG. 4) or the like via the signal processing unit (not shown). FIG. 6 shows a mounting structure for an emergency push button according to another embodiment of the present invention, in which the spring body 24 has a bamboo spring shape, and the bottom wall 2h of the recess 2b is formed.
From the side toward the upper wall 25a of the emergency push button 25, and the plate-shaped coil spring 2 having an inner surface serving as a light reflecting surface 24a.
It is composed of 4A. Here, the light reflecting surface 24a may be formed by forming a mirror surface or polishing a metallic glossy surface.

According to the mounting structure for the emergency push button of this embodiment, the light from the emergency button indicator lamp 7 is reflected by the light reflecting surface 24a of the inner surface of the plate coil spring 24A, so that the emergency indicator lamp is The light from 8 is used efficiently, and the emergency push button 2
5 has the effect of making it easier to see from the outside.

[0028]

As described above, according to the mounting structure of the emergency push button in the electronic device of the first aspect, the emergency push button can be assembled from the front side of the cover portion, so that the emergency push button can be easily assembled. is there. According to the mounting structure of the emergency push button in the electronic device of the second aspect, since the emergency switch can be arranged in the vicinity of the emergency push button, the space can be reduced and the size can be reduced. .

According to the mounting structure of the emergency push button in the electronic device of the third aspect, since the bottom wall of the recess also functions as a stopper for restricting the excessive push of the emergency push button, the emergency push button is required more than necessary. It is possible to prevent the emergency switch from being damaged or the like before it is pushed into the emergency switch and the operating portion of the emergency switch is not pushed more than necessary. According to the mounting structure of the emergency push button in the electronic device of claim 4, the spring body gradually increases in diameter from the bottom wall side of the recess toward the upper wall side of the emergency push button, and the inner surface is a light-reflecting surface. Since it is composed of a coil spring, the light from the emergency button indicator light is reflected by the light reflection surface on the inner surface of the plate coil spring,
The light from the emergency indicator light is efficiently used, and the emergency push button becomes easier to see from the outside.

[Brief description of drawings]

FIG. 1 is a longitudinal cross-sectional structural view of an essential part showing an embodiment of a mounting structure for an emergency push button according to the present invention.

FIG. 2 is a plan view showing an embodiment of a mounting structure for an emergency push button that crosses a recess in a cover part.

FIG. 3 is an exploded perspective view of a security hands-free intercom to which the emergency push button mounting structure according to the present invention is applied.

FIG. 4 is a vertical sectional view of a security hands-free intercom.

FIG. 5 is a system configuration diagram of a security hands-free intercom system.

FIG. 6 is a vertical cross-sectional structural view of an essential part showing another embodiment of the mounting structure of the emergency push button according to the present invention.

FIG. 7 is a partial vertical cross-sectional view showing a mounting structure for a conventional emergency push button.

[Explanation of symbols]

 1 Base Part 2 Cover Part 2b Recess 2h Bottom Wall 2i Hole 2j Hole 2k Circumferential Wall 2m Locking Hole 7 Emergency Button Indicator Light 12 Emergency Switch 12a Actuator 24 Spring Body 24A Plate Coil Spring 24a Light Reflecting Surface 25 Emergency Button 25b Locking Claw 25c Peripheral Side Wall

Claims (4)

[Claims] 1. A base part in which an emergency button indicator light and an emergency switch are arranged side by side, and a cover part, which is partially formed with a recess for inserting an emergency push button, is integrally mounted. In the electronic device, a hole is formed in the bottom wall of the recess of the cover to project the emergency button indicator light and the emergency switch, and the bottom wall of the recess and the emergency push button Between the inner surface of the wall and the bottom wall side, an inverted frustoconical spring body for gradually expanding the diameter toward the upper side of the push button and urging the emergency push button outward is disposed, and a peripheral wall of the recess is provided. A locking projection is formed on a part of the peripheral side wall of the emergency push button, which is engaged with the formed locking hole and is locked in the locking hole to prevent the emergency push button from coming off. A structure for mounting an emergency push button in an electronic device, which is characterized in that 2. The electronic device according to claim 1, wherein the operating portion of the emergency switch is arranged near the spring body and is configured to be pressed by the emergency push button. Emergency push button mounting structure for equipment. 3. The bottom wall of the recess also functions as a stopper for preventing the push button from being pushed too much by contacting the bottom edge of the emergency push button. An attachment structure for an emergency push button in the electronic device described in (1). 4. The spring body is a plate-shaped coil spring whose diameter gradually increases from the bottom wall of the recess toward the upper wall of the push button, and the inner surface of which is a light reflecting surface. Item 1
4. An attachment structure for an emergency push button in the electronic device according to any one of 3).