DE1947884U - ACOUSTIC SIGNAL DEVICE. - Google Patents

Description

Acoustic signaling devices with electromagnetic drive are generally used as horns or buzzers labeled and supplied with a horn as is customary in the trade. There are different designs which do without the funnel and the sound reflection from the mounting surface, for example the Wall off, make. In such cases, the electromagnetic drive systems are arranged horizontally.

An acoustic signaling device with a horizontally arranged electromagnetic drive system is described, whose special feature is a fastener, through which all in a simple two-part Form manufactured housing parts and the magnet system are connected and the deflected by 90 Sound is emitted via an outlet opening below the housing that occupies the width of the housing will.

The acoustic signal device has a trough-shaped exit opening for the sound, which is preferably one Radiation caused at an angle of 45, the outlet opening from the bottom opening of the Housing is exponentially expanded from. A vertical arrangement of the oscillating springs is expedient. the Connection for the acoustic signal device is through

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74d, 3'06. 1947SS4. INDU-IX ¹ XWaI- ί '; ί |) ^! ler Cn ( : o., Kettwig. | Acoustic signal- '° - ¹ ^ -' gerat. 4. P. 66. J 15 407. (1- 5; Ζ · Π

4307 KETTWIG T ~ 7 ~ Z

3rd August 1966

INDU-LU X industrial lights KLETTALUX adhesive lights ALLWEDiN power connector

2. Sheet from the utility model application "Acoustic signaling device"

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a rubber grommet that can be clamped and that can be adapted to the connection cable used by cutting it off, which is kinked and guided under the strain relief clamp *

The signal device described above has a very favorable sound radiation, in which by the shape of the housing a sound radiation is given in preferably 45 downwards. This will make bigger Rooms with optimal sound. A good degree of efficiency is also achieved by the fact that the sound outlet opening is arranged in the width of the housing below the housing and, in the case of exponential expansion, the Sound reflection on all sides of round surfaces and thus takes place in a wide scattering angle. To such a thing Manufacture device inexpensive, it is useful to design the items so that they are in simple two-part molds can be produced. In the case of hollow bodies, such as funnels, this is not possible. The simply manufactured housing parts could be achieved in the manufacture of these parts destroy economic gain through expensive assembly, if it had not been suggested, to connect all these parts by a fastening means, for example by a screw connection. It has also been proposed to arrange the oscillating springs of the electromagnetic drive system vertically, because this ensures a stable slide movement. With electromagnetic drive

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74d, 3/06. 1947 884. INDU-LUX \ X ^r äj- ι Ο ler A. Co Kettwig. | Acoustic sign.il- ^; device. 4. p. 66. "j 15 407. (T 5; '/ .. ^1λ

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August 3, 19 66

INDU-LU X. Industrial lights K L E T T A L U X - ALLWEDI N power connector stick lights

♦ Sheet from the utility model application "Acoustic signaling device"

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systems, the slide vibrations are transmitted The entire device and the electrical lines are also subject to short, hard shock pulses, so that they require special mechanical protection against this. As protection is one Rubber grommet has been proposed, which is kinked to grip under the strain relief clamp. In usual The lid is put on with a seal and sealed so that it is weatherproof. Between the membrane and A seal is also inserted into the bottom of the housing, so that the magnetic System is protected against the ingress of moisture. There are three holes for mounting on the wall provided, which ensure a secure support, with the usual eyes on the ground.

Figure 1 shows the top view and Figure 2 shows a cross section of the acoustic signaling device. The same parts are identified identically in both drawings. The magnet system 1 with his Oscillating springs 2 are attached to a base plate 3. Together with the membrane and the seal all housing parts held together by the fastening means 4, for example screws. The housing parts consist of the base 5, the sound guide 6 and the cover 7. In the housing base 5 is a sound outlet opening 8 provided, which redirects the sound to, the opening exponentially up to

74d, 3/06. 1947 8S4. IN'DU-LUX Wai- ι 'j j π r! Er C% Co .. Kettwig. | Acoustic ^signal- ° - ιυ · ^υ

device. 4. P. 66. J 15 407. (T. 5; line 1)

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INOU- L U X industrial lights K L ETTAi-U X -clamping lights ALLWEDIN power connector

3rd August 1966

. Sheet from the utility model application "Acoustic signaling device"

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extended to the sound outlet. As a result of the rounded inner edges, a radiation angle of is preferred 45 ° reached. The whole device is fastened in the fastening holes 9 by conventional means. The connection cable is cut through a bend protection sleeve that can be cut to fit the connection cable 10 and clamped under the strain relief clamp 11.

Claims (3)

Protect ρ r ü c h e 1.) Acoustic signaling device with a horizontally arranged electromagnetic drive system, marked by a fastening means (Ό, through which all housing parts manufactured in a simple two-part form (5, 6, 7) and the magnet system (1) are connected and the sound deflected by 90 over an outlet opening that occupies the width of the housing (8) is emitted below the housing. 2.) Acoustic signal device according to claim 1.), characterized by a trough-shaped outlet opening (6) for the sound, which preferably emits radiation at an angle of 45 °, the outlet opening (8) extending exponentially from the bottom opening of the housing expanded. 3.) Acoustic signal device according to claim 1.), characterized by a vertical arrangement of the oscillating springs (2) Acoustic signaling device according to claim 1.), characterized by a clampable and by cutting off the The connecting cable used in each case, adjustable rubber grommet (10), which is kinked to under the strain relief clamp (11) is performed.