JPH0450391Y2 - - Google Patents

Description

[Detailed Description of the Invention] A. Purpose of the Invention [Field of Industrial Application] The present invention relates to a door closer that has a function of sensing the opening operation of a door and generating a sound.

[Conventional technology]

Conventionally, there are known calling devices that generate sounds such as a chime, a melody chime, or an alarm when the door is opened, but these devices are dedicated devices that are shaped like a box and are separate from the door closer. It is common to attach it to

However, since many parts such as locks, knobs, door closers, door chains, etc. are usually attached to the door area, installing the above device will further complicate the door area, resulting in poor operability and poor appearance. There were some problems, such as not being good.

[Problem that the invention attempts to solve]

Therefore, the present invention avoids the above-mentioned conventional problems by incorporating a sound generation device inside the cover of the door closer body, and also allows selection of sounds such as melody chimes, alarms, etc.
The purpose of this is to make it possible to switch ON and OFF, and to distinguish between visitors and unwanted intruders based on the sound generated, and also to be able to stop the sound generation when unnecessary. .

B. Composition of the invention [Means for solving the problem] That is, the invention consists of a cover formed to be able to cover the door closer body, a power supply and various electrical parts mounted on a board, and a melody tuner equipped with a speaker. The circuit is configured to be able to generate time, alarm, etc., and the generated sound can be switched on and off.
It is equipped with a three-stage changeover switch for switching and a sound generation device with a sensing function, and the sound generation device is installed in the cover so that it can detect the opening operation of the door and generate sound, and the 3
The above-mentioned problem was solved by configuring the switching lever of the stage switching switch to protrude from the cover so that it could be operated to the outside.

[Embodiment] An embodiment of the present invention will be described below in detail based on the drawings.As shown in FIG.
The cover 2 is formed to have dimensions that allow it to be covered with the door closer, and is also formed so that a sound generating device 3 can be installed between the cover 2 and the door closer body 1.

It is preferable for this cover 2 to be able to be fitted and integrated with the door closer body 1 covered, rather than to be directly fixed to a door (not shown) while covering the door closer body 1, and to fix the cover 2. As a means, an engaging rib (not shown) may be provided at a suitable position on the inner surface of the outer shell 2a so that the engaging rib (not shown) is hooked into a recess (not shown) formed in the outer wall of the door closer body 1, or by screwing or the like. It should be fixed so that it can be attached and detached freely.

Further, according to the illustrated example, the cover 2 is formed so that its longitudinal dimension is longer than that of the door closer body 1 by an appropriate dimension, and void spaces 4 and 4' are formed on both left and right sides of the door closer body 1. The sound generating device 3 is housed in the spaces 4 and 4', respectively.

In other words, the cover 2 is provided with engaging grooves 2c, 2c, etc. by providing ribs 2b, 2b in parallel on the left and right sides of the outer shell 2a at opposing positions on the inner surface of the outer shell 2a.
are arranged in parallel, and the both ends of the substrate 3a and the periphery of the speaker 3b of the sound generating device 3 are removably engaged with the engaging grooves 2c, 2c, respectively. 3 and speaker 3
b can be removably installed inside.

In addition, the door closer main body 1 has one end of the arm 5 fixed to the rotating shaft 1a, and a mounting bracket 6 fixed to the other end of the arm 5 and the upper frame of the door mounting frame (not shown), as in the conventional product. They are pivotally connected at arm 7, and when the door opens, the rotation axis 1
A is rotated, and as a result, a closing force is stored by the action of the spring inside the interior and the operating shaft.

Further, as shown in FIGS. 1 and 2, the sound generating device 3 includes a battery 3c, various electric components 3d, etc., a sound generating circuit 3e, a three-stage changeover switch 3f, a sensing mechanism 3g, etc. on a board 3a. The speaker 3b is electrically connected to the blank space 4, 4' of the cover 2 as described above.
It is integrated with the door closer body 1 by being installed inside the door closer body 1.

Here, the sound generating device 3 has a circuit configuration to generate two sounds, an alarm and a melody chime, and the three-stage changeover switch 3f
By operating the switch, the alarm and melody chime can be switched, and the sounds can be generated and stopped.

According to the illustrated example, the sensing mechanism 3g includes an on-type reed switch 3i and a permanent magnet 3j.
We are using the one formed by. That is, as shown in Fig. 1, when the door is closed, the reed switch 3
The permanent magnet 3j is attached to the arm 5 so that the permanent magnet 3j is located directly above the reed switch 3i, and when the reed switch 3i and the permanent magnet 3j move away from each other due to the opening operation of the door, it turns on and generates a sound. When the above two approaches, it turns off, and at the same time,
Alternatively, the sound is set to stop when a predetermined time has elapsed.

In addition to the above-mentioned example, the sensing mechanism 3g may be one in which a part of the arm 5 or a part of the mounting frame is sensed by a sensor using infrared sensing.

Next, as the sound generating device 3e, one having a circuit configuration as shown in FIGS. 4 and 6, respectively, is used.

In the circuit shown in FIG. 4, in the case of an alarm, the three-stage changeover switch 3f shown in FIG.
119, 117-118 are connected respectively, and when the reed switch 3i is turned on, the transistor 8 conducts, and the self-holding SCR conducts, and the MT terminal 1 of the LSI
04 becomes H level. (A positive charge is input.) Then, an alarm signal is outputted from the OUT ₁ terminal 114 and the OUT ₂ terminal 115.

This alarm signal is amplified by transistors 9 and 10, and an alarm is generated from the speaker 3b.

At this time, since + charge is input to the SEL ₂ terminal 106 of the LSI, one of the two types of alarms (the type of alarm set at the terminal 106) sounds. or
Since the alarm is self-maintained by SCR, the alarm will continue to sound even if the door is closed.

Next, in the case of a melody chime, the contacts 118-117, 120-104 are connected by the three-stage changeover switch 3f shown in Figure 3 A and B, and when the reed switch 3i is turned ON, the transistor 8 becomes conductive, and the LSI MT Terminal 104 becomes H level (+ charge is input) and OUT ₁ terminal 114 and OUT ₂ terminal 115
A melody chime signal is output, which is amplified by transistors 9 and 10, and a melody chime signal is generated from the speaker 3b.

At this time, since the only input is terminal 104, the melody chime is output.

The functions of other LSI terminals are as follows.

108-input, 106-input...Power input to LSI.

101, 102, 103...Determine the transmission frequency.

113, 112...output before passing through the preamplifier,
The input terminal determines the volume of the sound.

110, 111...Adjust the time constant to determine the speed.

In the circuit shown in FIG. 6, in the case of an alarm, the three-stage changeover switch 3f shown in FIG.
112 are connected respectively, and the reed switch 3i
When turned on, the MT terminal 104 of the LSI becomes H level. (A positive charge is input.) Then, an alarm signal is outputted from the OUT ₁ terminal 114 and the OUT ₂ terminal 115.

Since + charge is input to the SEL ₂ terminal 106 of the LSI, the sound (alarm) set at the terminal 106 sounds, the door is closed, and the reed switch 3i
When is turned off, the alarm will stop.

Contacts 120 and 112 are connected and volume is not adjusted.

In the case of a melody chime, contacts 117-118, 119-120 are connected by the three-stage changeover switch 3f shown in Figure 5 A and B, and when the reed switch 3i is turned on, the LSI
MT terminal becomes H level (+ charge is input) and OUT ₁ terminal 114 and OUT ₂ terminal 115
A melody chime signal is outputted, which is amplified by transistors 9 and 10, and a melody chime signal is emitted from the speaker.

At this time, since the only input is the terminal 104, only the melody chimes are output.

The functions of the other LSI terminals are the same as those of the circuit shown in FIG. 4 above, so a detailed explanation will be omitted.

FIG. 3B and FIG. 5B show the connection status of each contact in the above-mentioned circuit in the case of an alarm and in the case of a melody chime when the changeover lever 3h of the three-stage changeover switch 3f is operated.

Also, usually a melody chime is set when a person enters or leaves the door, and it is set to ring when a person opens the door.
The melody chime may be configured to stop when one song is finished, regardless of whether the door is opened or closed.

In this way, people can pass continuously,
Since the melody chime does not continue to ring even when the door is held open, it is economical in terms of power consumption and does not feel noisy.

Here, the duration of one melody chime should be, for example, about 5 to 10 seconds so as not to cause discomfort.

Furthermore, the generation of alarms and melody chimes can be stopped by turning off the three-stage changeover switch 3f, so the three-stage changeover switch 3f can be arbitrarily operated as necessary.

Further, when the alarm is used for the purpose of crime prevention, it is preferable to set it so that it continues to sound even if the door is closed unless the three-stage selector switch 3f is switched.

[Effect of idea]

As explained above, since the door closer with a sound generation function according to the present invention is configured, the sound generation device 3 is integrated inside the cover 2 together with the door closer body 1, and is not exposed to the outside. Unlike the conventional example, the door surround is no longer complicated, and the operability of opening and closing the door is improved, and the appearance is clean and has an excellent design. By switching, it is possible to generate either the alarm or the melody chime, or to stop the generation of both, so for example, you can set the melody chime to sound normally, but not when you are sleeping or at home. If you set an alarm to go off when a person goes out, you can know who is outside by hearing a melody chime, and the alarm can be used as a warning sound to notify both inside and outside the house, thereby preventing crime. It can be effective. Furthermore, when people come in and out continuously, the system can be stopped so that the noise does not cause discomfort, and it can be easily and easily adjusted to suit the intended use and situation by simply flipping a switch. It has a positive effect.

[Brief explanation of drawings]

FIG. 1 is a partially sectional front view of an embodiment of a door closer with a sound generation function according to the present invention;
Fig. 2 is a perspective view of the sound generating device in the door closer, Fig. 3 A _, B and Fig. 5 A _, B are explanatory diagrams showing a front view of the three-stage changeover switch in the door closer and the connection state of the contacts. , Figure 4, Figure 6
The figures are circuit diagrams illustrating the sound oscillation circuit in the door closer. 1...Door closer body, 2...Cover, 3
...Audio generator, 3a... Board, 3b... Speaker, 3c... Power supply, 3d... Electrical component, 3f
...3-stage selector switch, 3g...sensing mechanism, 3
h...Switching lever.

Claims (1)

[Scope of utility model registration request] A cover 2 is formed to be able to cover the door closer body 1, a power source 3c and various electric components 3d are mounted on a board 3a, and a circuit is configured such that it is equipped with a speaker 3b and is capable of producing melody chimes, alarms, etc. and switching of the generated sound and
It is equipped with a sound generating device 3 equipped with a three-stage switch 3f for ON/OFF switching and a sensing mechanism 3g, and the sound generating device is placed inside the cover so that it can generate sound by sensing the opening operation of the door. A door closer with a sound generation function, characterized in that the changeover lever 3h of the three-stage changeover switch is operable to protrude from the cover to the outside while being attached to the door closer.