JPH0745836Y2 - Fire transmitter - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to a fire transmitter which is connected to a receiver via a transmission line and sends an alarm signal to the receiver by pressing a switch to give an alarm.

[Prior Art] Conventionally, in a fire transmitter that pushes a push protection plate of a switch provided behind a push hole of a front cover and sends a fire signal to a receiver when the switch is turned on, a fire transmitter is placed above a switch housing. A telephone jack for inserting a telephone plug is provided that enables communication with the receiver side. A door that can be opened and closed is provided at the position of the front cover opposite to the storage part of this telephone jack. When making a call, open the front cover door and plug the telephone (handset) into the telephone jack. By plugging in, you can make a call contact with the receiver.

[Problems to be solved by the invention] However, in such a conventional fire transmitter, since the switch storage part and the telephone jack storage part are connected in the space on the back side of the front cover, rainwater is above the telephone. If it enters through the gap of the door of the plug insertion port, it may flow into the switch housing located below and short-circuit the switch contacts.

Also, the door of the telephone plug opening may be opened and paper chips or gum may be stuffed in by mischief, and there is a problem that the switch does not work because it is caught by paper scraps or the like.

The present invention has been made in view of such conventional problems, and the switch function is not impaired even if rainwater flows in from the telephone plug insertion port or paper scraps are packed. The purpose is to provide a high fire transmitter.

[Means for Solving the Problem] In order to achieve this object, the fire transmitter of the present invention is configured as follows. The reference numerals in the drawings of the embodiments are also shown.

First, the present invention is directed to a switch means 14 provided in a switch housing 12 inside the main body 10, a front cover 16 having a pressing hole 18 covering the front portion of the main body 10 and facing the switch means 14, and a front cover 16 of the front cover 16. A pressing protection plate 20 provided behind the pressing hole 18 to protect the switch means 14 and move by pressing to turn on the switch means 14, and a telephone formed at the upper part of the switch housing 12 at the time of a call with the receiver side. A telephone jack storage section 36 having a telephone jack 60 into which the plug of is inserted and connected,
A telephone plug insertion opening 50 opened to the front cover 16 opposite to the telephone jack storage section 36, and an openable and closable door 38 provided in the telephone plug insertion opening 50 are provided, and a receiver is provided via a transmission path. It is intended for a fire transmitter which is connected to and sends an alarm signal to the receiver by pressing the switch means to give an alarm.

In the present invention for such a fire transmitter, a partition wall 62 is provided to vertically partition the space between the main body 10 and the front cover 16 between the switch housing 12 and the telephone jack housing 36. Is characterized by. This partition wall 62 is a switch storage
It is integrally formed on the surface of the main body 10 between the telephone 12 and the telephone jack housing 12 by molding.

[Operation] According to the fire transmitter of the present invention having such a configuration, the following operation can be obtained.

By forming a partition wall that divides the space between the switch storage part and the telephone jack storage part on the back of the front cover into upper and lower parts, rainwater flows into the switch storage part by the partition wall even if it enters from the telephone plug insertion port. Therefore, malfunction due to switch short circuit can be prevented, and rust and the like in the switch housing can be suppressed. Further, even if waste paper or gum is loaded from the telephone plug insertion hole by mischief, the partition wall prevents the switch from being packed in the pressing portion, and the switch operation in case of fire can be guaranteed.

[Embodiment] FIG. 1 is a sectional view showing an embodiment of the present invention, and FIG. 2 is a front view thereof.

In FIG. 1, reference numeral 10 denotes a main body of the fire transmitter, which is made by molding synthetic resin, and protrudes from the center of the main body 10 to the back to form a switch housing 12 on the lower side. It is partitioned from 12 to form a telephone jack storage portion 36 on the upper side.

A non-locking type switch 14 is incorporated in the switch storage portion 12, and a telephone jack 60 for receiving a plug connection of a portable telephone is provided in the telephone jack storage portion 36. The switch 14 and the telephone jack 60 are mounted on the printed circuit board 30 on the back surface side, and are mounted by fixing the printed circuit board 30 to the main body 10 side with screws. Printed circuit board
A back cover 32 is attached to the back side of 30. A front cover 16 is attached to the front part of the main body 10. The front cover 16 is also formed by molding a synthetic resin, and a pressing hole 18 is formed in the switch 14 at substantially the opposite center thereof, as is apparent from FIG. Behind the pressure hole 18 on the front cover 16 is a pressure protection plate 20.
The coil spring 22 for return is incorporated between the pressure protection plate 20 and the switch 14 coaxially with the knob 34 of the switch 14. A confirmation LED 37 is provided on the upper side of the switch 14 in proximity to it. The confirmation LED 37 is turned on by the response signal when the switch 14 is turned on when the pressing protection plate 20 is pushed, the fire detection signal is transmitted to the receiver, and the fire alarm is issued.

A telephone plug insertion port 50 is opened at a position of the front cover 16 facing the telephone jack storage section 36 of the main body 10, and the telephone plug insertion port 50 is provided with a display door 38 that can be opened and closed.
On the display door 38, a transmitter name "fire alarm" and an operation message "calling" for contacting a call are written. Further, the operation message “hard press” is drawn on the press protection plate 20.

FIG. 3 is an exploded view of the embodiment of FIG.

In FIG. 3, the fire transmitter of the present invention is a main body 10 and a front cover.
Broadly divided into 16. A pressing hole 18 and a telephone plug insertion port 50 are opened in the front cover 16, and a display door 38 is provided in the telephone plug insertion port 50. The front cover 16 is a main body 10 with screws 52.
Fixed on the side.

The main body 10 side has a switch housing 12 and a telephone jack housing 36 on the back side, and the knob 34 side of the switch 14 mounted on the printed board 30 is taken out from the opening of the switch housing 12. A confirmation LED 37, a plurality of terminal fittings 35, and a telephone jack 60 (see FIG. 1) are mounted on the printed circuit board 30,
The back cover 32 is attached with the main body 10 attached.

A pressure protection plate 20 is provided behind the pressure hole 18 of the front cover 16, and a return coil spring 22 is provided between the pressure protection plate 20 and the switch 14. The pressure protection plate 20 is integrally formed with guide pieces 24-1 to 24-4 at four locations. The switch accommodating portion of the main body 10 corresponds to the guide pieces 24-1 to 24-4.
Guide part with L-shaped angle shape in 12 openings 26-
1 to 26-4 are formed, and by guiding and moving the guide pieces 24-1 to 24-4 along the guide portions 26-1 to 26-4, the initial stage of the pressing protection plate 20 against the pressing operation is performed. It can be moved while maintaining its position.

A pair of lock pieces 42-1 and 42-2 are provided on the pressure protection plate 20, and the two lock pieces 42-1 and 42-2 outside the opening of the switch housing 12 of the main body 10 are provided.
By attaching a lock spring 28 shown in 8 ', the pressing protection plate 20 can be fitted and held at two positions, an initial position and a switch-on position.

Details of the pressure protection plate 20 are shown in FIGS. 5, 6, 7 and 8.

FIG. 5 is a front view of the pressure protection plate 20, FIG. 6 is a side view, and FIG.
The drawing is a rear view, and FIG. 8 is a plan view seen from below.

The lock pieces 42-1 and 42-2 formed on the pressure protection plate 20 are the eighth
As shown in the figure, the first lock groove 42 is fitted to the spring portions 28a on both sides of the lock spring 28 at the initial position of the pressure protection plate 20 on the lower side.
Is formed, and when the pressure protection plate 20 is pushed upward to move to the switch-on position, the spring portions on both sides of the lock spring 28 are formed.
A second lock groove 44 into which 28a is fitted is formed.

Referring again to FIG. 3, the lock spring 28 has spring parts on both sides.
In addition to 28a, the crown 28b is bent forward and extends. When the pressure protection plate 20 is pushed in, the spring portion 28a of the lock spring 28 is fitted into the second lock groove 44 of the pressure protection plate 20 to maintain the lock state.
By inserting a finger into the telephone plug insertion opening 50 of the front cover 16 and pushing down b, the spring portions 28a at both ends are opened outward and the locked state is released.

Incidentally, 54 is a spring retainer, which is positioned and held in the installed state of the lock spring 28.

In this embodiment, two plug insertion holes 64-1 and 64-2 are formed on the upper side of the opening of the switch housing 12 of the main body 10. And switch compartment 12 and telephone jack compartment
Between the plug insertion holes 64-1 and 64-2 corresponding to 36, a partition wall 62 that connects the guide portion 26-1 and the guide portion 26-2 in an arc shape is integrally formed by molding the main body 10. Is forming.

FIG. 4 is an explanatory view showing the front surface side of the main body 10 of the present invention. A telephone jack storage portion 36 is formed on the switch storage portion 12 on the front surface side of the main body 10 from the switch storage portion 12. The front portion of the switch 14 and the knob 34 are projected, and two plug insertion holes 64-1 are provided for the telephone jack storage portion 36.
64-2 is provided. Guide portions 26-1 to 26-4 for guiding the guide pieces 24-1 to 24-4 of the pressure protection plate 20 are formed at four locations around the switch 14, and the two guides located on the upper side. An arcuate partition wall 62 is integrally formed so as to connect the portions 26-1 and 26-2. Due to the formation of the partition wall 62, the main body of the front cover 16 shown in FIG.
The space formed between the front cover 16 and the main body 10 in a state of being attached to the housing 10 is partitioned by the partition wall 62 into a space corresponding to the upper telephone jack storage portion 36 and a space corresponding to the lower switch storage portion 12. . The upper space corresponding to the telephone jack storage section 36 has a telephone plug insertion port 50 of the front cover 16, and the display door 38 is attached to the telephone plug insertion port 50, but rainwater is attached even if it is closed. Upon receiving it, water will come into the interior through the gap. In addition, the display door 38
May open, and paper or gum may get stuck in the telephone plug insertion port 50.

Since the partition wall 62 is formed so as to cover the upper part of the front side of the switch storage part 12 against the intrusion of rainwater from the telephone plug insertion port 50 of the upper part and the jamming of paper waste etc. by mischief, the telephone The rainwater that has flowed in from the plug insertion port 50 is a partition wall
At 62, the switch housing 12 is prevented from flowing into the take-out portion of the switch 14, malfunctions such as rainwater entering the switch housing and short-circuiting the switch contacts, and deterioration due to intrusion of electrical parts of the switch housing are prevented. Can be prevented.

Further, the jamming of paper scraps and gum prevents the push-in to the switch storage portion 12 side by the partition wall 62, and even if paper scraps or the like are jammed, the operation of the switch 14 by the pressing of the pressing protection plate 20 is guaranteed. be able to.

FIG. 9 shows a state in which the switch 14 is turned on by pushing the pressure protection plate 20 in the embodiment of FIG.

Further, FIG. 10 shows a state in which the display door 38 provided on the front cover 16 is opened, and the display door 38 is opened and the plug of the portable emergency telephone is inserted from the telephone plug insertion port 50 into the telephone jack of the telephone jack storage portion 36. Can be inserted and connected to 60. Further, as shown in FIG. 9, when the pressure protection plate 20 is pushed in to turn on the switch 14, the lock spring 28 holds the pressure protection plate 20 in the switch-on position and locks the pressure protection plate 20 at this switch-on position. When the display door 38 is opened to release and return, the lock spring provided inside from the telephone plug insertion port 50
The top portion 28b of the lock spring 28 can be seen, and the top portion 28b of the lock spring 28 is pushed down by pushing it down with a fingertip or a screwdriver.
28a opens to release the lock of the pressure protection plate 20, the force of the coil spring 22 pushes the pressure protection plate 20 back to the initial position shown in the figure, and the knob 34 of the switch 14 is pushed back by the built-in spring to switch off. Can be restored.

Since the switch 14 has a built-in spring, the coil spring 22 may be omitted by using the spring force of the built-in spring to restore the pressing protection plate 20.

[Effects of the Invention] As described above, according to the present invention, even if rainwater enters from the telephone plug insertion port provided with the door provided on the front cover or paper scraps and gum are jammed by mischief, Since a partition wall is formed between the switch housing in the space between the front cover and the main unit and the upper phone jack housing, it prevents rainwater from entering the switch housing and prevents malfunction of switches and durability of electrical parts. It is possible to prevent deterioration of the property, and even if paper dust, gum, etc. are packed, the switch operation by the pressure protection plate is guaranteed, and a highly reliable fire transmitter can be realized.

[Brief description of drawings]

1 is a sectional view of an embodiment showing an embodiment of the present invention; FIG. 2 is a front view of FIG. 1; FIG. 3 is an exploded view of the embodiment of FIGS. 1 and 2; FIG. 5 is an explanatory view showing the main body of the present invention taken out; FIG. 5, 6, 7, 8 is an explanatory view showing the press protection plate of the present invention taken out; FIG. 9 is a sectional explanatory view when the switch of the present invention is operated. FIG. 10 is an explanatory sectional view showing a state in which the display door of the present invention is opened. In the figure, 10: Main body 12: Switch housing 14: Switch (non-locking type) 16: Front cover 18: Press hole 20: Press protection plate 22: Coil spring 24-1 to 24-4: Guide piece 26-1 to 26 −4: Guide part 28: Lock spring 30: Printed circuit board 32: Back cover 34: Knob 35: Terminal bracket 36: Telephone jack storage part 37: LED for confirmation 38: Display door 42: First lock groove (for initial position) 44 : Second lock groove (for switch-on position) 50: Telephone plug insertion hole 54: Spring retainer 60: Telephone jack 62: Partition wall 64-1, 64-2: Plug insertion hole

Claims (1)

[Scope of utility model registration request] 1. A switch means provided in a switch accommodating portion inside a main body, a front cover which covers a front portion of the main body and has a pressing hole facing the switch means, and a rear surface of the pressing hole of the front cover. And a push protection plate that protects the switch means and moves by pressing to turn on the switch means, and a telephone that is formed above the switch housing and in which a plug of a telephone is inserted and connected during a call with the receiver side. A telephone jack storage portion provided with a jack, a telephone plug insertion opening opened in the front cover facing the telephone jack storage portion, and an openable and closable door provided in the telephone plug insertion opening. In a fire transmitter connected to a receiver via a transmission line and sending a warning signal to the receiver by turning on the switch by pressing the switch means, A partition wall for vertically partitioning the space between the front cover and the main body between the storage part and the telephone jack storage part,
A fire transmitter characterized by being integrally formed by molding on the surface of the main body between the switch housing and the telephone jack housing.