JPH0335024Y2 - - 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 is equipped with a function of generating sound by sensing the opening operation of a door or the operation of door closer constituent members.

[Conventional technology]

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

However, since many parts such as lock 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 are problems such as:

Therefore, the present applicant proposed a system in which a cover capable of covering the door closer body is provided, and the door closer body, a sound generating device, and a sensing mechanism are housed in the cover, and is incorporated in Utility Model Application No. 59-135630. It is designated as Utility Model No. 61-49879).

According to this door closer with a sound generation function, the door closer body, the sound generation device, and the sensing mechanism are integrated, which is sufficiently effective in solving the above-mentioned problems. In this case, the direction of the arm that detects the opening operation of the door by the above-mentioned sensing mechanism is opposite for left-handed and right-handed cases, so the above-mentioned sensing mechanism should be placed on the side of the cover where the sound generator is installed and the side where the speaker is installed. They must be installed on both sides.

Additionally, the sensing mechanism is generally configured to sense a magnet fixed to the arm, so if the sensing mechanism is provided on the speaker side of the cover, it will only sense the magnetism of the arm and will not detect the magnetism of the speaker. Adjustments must be made so that no detection is detected, which requires extremely high precision and is difficult to manufacture and assemble.

[Problem that the invention attempts to solve]

Therefore, as a result of studies in view of the above-mentioned problems, the present invention was developed in a door closer that has a sound generation function, of which two separate covers are attached to the left and right sides of the door closer body so that the left and right sides can be replaced.
One of the separation covers houses a sound generating device and two sensing mechanisms in vertically symmetrical positions, while the other separation cover houses only a speaker. By making the left and right mounting positions reversible to match the body of the door closer, the same cover can be used for both left and right hands, and since it is not affected by the speaker's magnetism, door opening detection is accurate, reliable, and audible. The purpose is to provide the generator at a low cost because it does not malfunction and can be easily manufactured and assembled.

B. Structure of the invention [Means for solving the problem] That is, the invention has a pair of left and right separable covers that are detachably attached to the left and right sides of the door closer body.
and a sound generating device which is attached to the left and right interchangeably, and has a power source, various necessary electrical parts, a changeover switch, etc. on one cover, and has a circuit configured to be able to generate melody chimes, alarms, etc.
Two sensing mechanisms for sensing the opening operation of a door or a door closer member, etc. are installed inside each other in vertically symmetrical positions, and a speaker is installed inside the other cover in a energized state with the above-mentioned sound generating device,
This solved the problems mentioned above.

〔Example〕

An embodiment of the present invention will be described below in detail based on the drawings. As shown in FIGS. 1 and 2, separate covers 2 and 2' are provided on both left and right sides in the longitudinal direction of the door closer body 1, respectively. A sound generating device 3 and two sensing mechanisms 4 and 4' are housed in vertically symmetrical positions in one cover 2, and a speaker 5 is housed in the other cover 2'.

Here, both the covers 2 and 2' are formed to have the same dimensions so that they can be freely attached to and detached from the left and right sides of the door closer body 1, and can be exchanged left and right, and are integrally attached to the door closer body 1. It is formed into a symmetrical shape, for example, the shapes shown in FIG.

Further, as means for attaching the covers 2 and 2' to the door closer body 1, mounting bases 1a and 1a of the door closer body 1, which are protruded symmetrically on both left and right sides of the door closer body 1, are used. Mounting base 1
Both covers 2 and 2' can be fitted onto a and 1a for exterior fitting.
is formed with an open bottom, and the mounting bases 1a, 1a
Engagement grooves 6, 6 are provided in the upper and lower side walls of the
Engagement ribs 2 that can be engaged and detached from the engagement grooves 6, 6 are provided on the inner surfaces of the upper and lower side walls 2a, 2a of both covers 2, 2'.
b, 2b may be provided in a protruding manner so that they can be detachably attached and integrated, or the door closer body 1
The covers 2, 2' may be removably attached to the cover 2, 2' by screws or the like, or other known means for attaching and detaching may be employed.

Furthermore, as shown in FIG. 4, the sound generating device 3 housed in one cover 2 includes a power source 8 such as a battery, various electrical components 9, a sound generating circuit 10, a changeover switch 11, and the above-mentioned 2 on a board 7. Sensing mechanism 4, 4'
Other necessary electrical parts are attached to form a circuit capable of generating melody chimes, alarms, etc., and by fixing the board 7 in the case 2 with appropriate fixing means, the sound generating device 3 is assembled. The two sensing mechanisms 4 and 4' are internally integrated into the cover 2.

Furthermore, in the operating condition shown in FIG. 1, the two sensing mechanisms 4 and 4' are arranged such that one of the sensing mechanisms 4 faces an arm 12 fixed to the rotating shaft 1b of the door closer body 1.

Further, the sound generating device 3 is configured to generate two sounds, a melody chime and an alarm, and by operating the changeover switch 11 to the left or right as shown in FIG. 5A and B, Switching between melody chime and alarm,
It is configured to generate and stop these sounds.

Further, the changeover of the changeover switch 11 may be performed with the cover 2 removed from the door closer body 1, but the changeover lever 11a may be made to protrude outward from a window hole 2c provided in the cover 2 as shown in the figure. The above switching may be performed with the cover 2 mounted and the cover 2 attached.

In the illustrated example, the sensing mechanisms 4, 4' include an on-type reed switch 4a and a permanent magnet 4b.
We are using the one formed by.

That is, as shown in FIG. 1, when the door closer is in use, the permanent magnet 4 is positioned directly above the reed switch 4a when the door is closed.
b is attached to the arm 12, and when the door opens, the arm 12 rotates and the reed switch 4 is opened.
When a and the permanent magnet 4b move away from each other, the melody is turned on and a sound is generated, and when the song finishes playing, the melody chime stops regardless of whether the door is opened or closed.

In addition to the above-mentioned examples, the sensing mechanism 4 includes a sensor that uses infrared sensing to sense a part of the arm 12, a part of the door mounting frame, etc.
Other known materials may be used.

Furthermore, the covers 2 and 2' are made for both hands by making the left and right mounting positions reversible in accordance with the door closer body 1 for left and right hands, and the speaker 5 installed in the other cover 2' is used to generate the above-mentioned sound. Although it is electrically connected to the device 3, if the connection wiring is exposed to the outside, it will not look good and will be easily disconnected, so a wiring groove 1c is formed in the longitudinal direction of the back surface of the door closer body 1 as shown in Fig. 2. It is preferable to form a recess as shown and to conduct the wiring 18 in the wiring groove 1c.

Further, in the door closer body 1, one end of the arm 12 is fixed to the rotating shaft 1b, and one end of the link 13 is pivotally connected to the other end of the arm 12, as in the conventional product.
The other end of the link 13 is pivotally connected to a bracket 14 fixed to a door mounting frame (not shown), and the rotating shaft 1 is rotated by the opening operation of the door to which the door closer body 1 is fixed.
b is rotated, thereby accumulating the closing force by the action of the internal spring and hydraulic oil.

Further, as the sound generating circuit 10, a circuit configured as shown in FIG. 6 and FIG. 8, respectively, is used.

In the circuit shown in Figure 6, in the case of an alarm, the fifth
The contact is made by the changeover switch 11 shown in Figures A and B.
117-106, 121-120, 104-119, and 117-118 are connected, respectively, and when the reed switch 4a is turned on, the transistor 15 becomes conductive, and the self-holding SCR becomes conductive, so that the MT terminal 104 of the LSI becomes H level. (A positive charge is input.) Then, an alarm signal is output from the OUT ₁ terminal 114 and the OUT ₂ terminal 115.

This alarm signal is amplified by transistors 16 and 17, and an alarm is generated from the speaker 5.

At this time, since + charge is input to the SEL ₂ terminal 106 of the LSI, one of the two types of alarms (terminal
106) will sound. 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 melody chime, selector switch 11 switches contacts 118-117, 120.
-104 is connected and the reed switch 4a is turned on, the transistor 15 becomes conductive and the MT terminal 104 of the LSI becomes H level. (A positive charge is input.) Then, a melody chime signal is outputted from the OUT ₁ terminal 114 and the OUT ₂ terminal 115, which is amplified by the transistors 16 and 17, and the melody chime signal is generated from the speaker 5.

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...The volume of the sound is determined by the output and input terminals before going through the preamplifier.

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

In the circuit shown in Fig. 8, in the case of an alarm, the changeover switch 11 shown in Fig. 7
117-106, 117-118, 120-112 are connected respectively,
When the reed switch 4a is turned on, the MT terminal 104 of the LSI becomes H level. (A positive charge is input.) Then, an alarm signal is output from the OUT ₁ terminal 114 and the CUT 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 4a is turned OFF.
When this happens, the alarm will stop.

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

In the case of melody chime, selector switch 11 connects contacts 117-118, 119.
-120 is connected and the reed switch 4a is turned on, the MT terminal of the LSI becomes H level. (+charge is input) Then, a melody chime signal is outputted from the OUT ₁ terminal 114 and the OUT ₂ terminal 115, which is amplified by the transistors 16 and 17, and the melody chime signal is generated from the speaker 5.

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

The functions of the other LSI terminals are the same as in the circuit shown in FIG. 6 above, and therefore their explanation will be omitted.

FIG. 5B and FIG. 7B show the connection status of each contact point in the case of an alarm in the circuit 10 and in the case of a melody chime when the changeover lever 11a of the changeover switch 11 is operated.

Here, the melody chime can be configured so that the melody chime is normally set when a person enters or leaves the door, and the melody chime sounds when the person opens or closes the door, and the melody chime stops after one song is played regardless of whether the door is opened or closed.

In this way, the melody chime does not continue to ring even if people pass by continuously or the door is held open, so 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 changeover switch 11, so the changeover switch 11 can be operated as desired.

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 changeover switch 11 is switched.

[Effect of idea]

As explained above, the door closer with a sound generation function according to the present invention is configured, and therefore, in the case where the cover is equipped with a sound generation device, a speaker, a sensing mechanism, etc. and is integrated with the door closer body, the above-mentioned door closer 2, which is detachably attached to the left and right sides of the main body 1 and can be exchanged for the left and right sides.
Of the two separate covers 2, 2', one cover 2 is equipped with a sound generating device 3 and two sensing mechanisms 4, 4' for sensing the opening operation of a door or the operation of a door closer member, etc. Since the sensing mechanisms 4 and 4' are installed in vertically symmetrical positions, and the speaker 5 is installed on the other cover 2', the installation positions of the covers 2 and 2' can be reversible to match the left and right hand door closer body 1. By closing the door, the door opening operation can be sensed by one sensing mechanism 4 in the case of right-hand operation, and the other sensing mechanism 4' in case of left-hand operation, and a sound can be generated, so it can be used for both left and right hands. Therefore, in the case where various devices for the sound generation function are installed inside the cover,
Two types of covers, one for left-hand and one for right-hand, are no longer necessary, and the other cover 2' houses only the speaker 5, not the sensing mechanism, so the above-mentioned sensing mechanisms 4, 4' The sensitivity of
Since there is no need for special adjustment so as not to sense the magnetism of the speaker 5, there are advantages such as ease of manufacturing and assembly, and the ability to provide the device at a low cost.

[Brief explanation of the drawing]

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 cross-sectional view taken along the - line in Fig. 1, and Figs. , C, and D are front views showing modified examples of the cover in the same embodiment, and FIG. Figure 5 A, B and 7
Figures A and B are explanatory diagrams showing the front view of the changeover switch and the connection status of the contacts in the same embodiment;
FIG. 8 is a circuit diagram illustrating the sound generating circuit of the same embodiment. DESCRIPTION OF SYMBOLS 1... Door closer body, 2, 2'... Separate cover, 3... Sound generator, 4, 4'... Sensing mechanism, 5... Speaker, 8... Power supply, 9... Electrical component, 11... Changeover switch.

Claims (1)

[Scope of utility model registration request] Separable covers 2 and 2' are attached to the left and right sides of the door closer body 1, respectively, in a detachable and replaceable manner, and one cover is equipped with a power source 8.
and a sound generating device 3 which is equipped with various necessary electrical parts 9 and a changeover switch 11, etc., and has a circuit configuration capable of generating a melody chime, an alarm, etc., and the above-mentioned sound generating device detects the opening operation of a door or a door closer member, etc. The sound generation device is characterized in that two sensing mechanisms 4 and 4' are installed in vertically symmetrical positions so as to be able to generate sound, and a speaker 5 is installed in the other cover in a energized state with the above-mentioned sound generation device. Functional door closer.