DE7822244U1 - SUPPORT DEVICE FOR A SPEAKER BOX - Google Patents

Description

PATENTANWÄLTE DIPL.-ING. WERNER FREISCHEM

ILSE FRESH

5000 COLOGNE 1 HEUMARKT 50 TELEPHONE: (0221) 23 58 68

Official file number:

Our file number: M 20 Gm 78/2

Applicant: Magnat Electronik GmbH. & Co.

Limited partnership

Unteruschweg

5000 Cologne 50

designation

: Support device for a loudspeaker box

The invention relates to a support device for a
Speaker box.

Loudspeaker boxes are often placed directly on the floor
in a room, they are often placed on shelves or they stand on low pedestals, for example
Dressers. With these setups listed as typical
an optimal sound radiation to a listening position can not always be achieved for all frequencies emitted by the loudspeaker box.

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For this it is necessary that both the azimuthal and the The horizontal angle of the radiation direction is correct. For stereo listening, this must be done for both loudspeakers at the same time and in as much as possible be fulfilled in the same way. For example, loudspeaker boxes that are on or in a piece of furniture are often the right height not. In the case of loudspeaker boxes that are on the floor, the sound radiation is generally too flat, but not enough the horizontal angle can be optimally adjusted by aligning it on the floor.

The object of the invention is to create a support device for a loudspeaker box that supports the loudspeaker box with simple Means to the most favorable radiation direction, which is convenient and without difficulty or additional parts on one A large part of the standard loudspeaker boxes can be adapted and itself - as well as in connection with the loudspeaker - a has good shape.

This object is achieved in that they are arranged on edge two Side parts, on the top of which are L-shaped, the lower side edges of the loudspeaker box encompassing contact areas and on the underside of which floor pieces are provided, as well as one that connects the two side pieces transversely and at a distance has holding, length-adjustable parallel guide.

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The two side parts are kept at a distance from each other by the parallel guide so that their contact areas the Set the speaker box between you. The loudspeaker box is therefore connected to its support device - if desired This is advantageous when moving the loudspeaker box away while cleaning the room and facilitates precise positioning when setting up. A good installation of the loudspeaker box on its support device, without the risk of damage for the loudspeaker box, is achieved when the contact areas are covered with strips of flexible, soft material are, for example, with foam.

The support device according to the invention can be manufactured easily and with a few commercially available parts. this in turn As a result, most of the space under the loudspeaker box remains free, its cubic and often very large housing thereby loses much of its weight and weight. Therefore, the support device according to the invention is well suited for sales exhibitions. The support device itself can also be designed in an elegant manner.

In most applications, the support device is placed on the floor of a room. Favorable radiation results are achieved when the baffle of the loudspeaker box is inclined slightly backwards by the contact areas slightly are arranged inclined backwards. In order to hold the loudspeaker box in its support frame and also in this case

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To make it easier to set up, a rear, L-shaped Holder, which rests against the rear wall of the loudspeaker box, is proposed. This can also achieve that 'the front the support device is not in front of the baffle of the loudspeaker box.

If the parallel guide is released, the two side parts with their respective associated part of the parallel guide pulled apart and thus packaged and stored in a space-saving manner.

Even with a simple design of the parallel guide in the form of two tubes of equal length, one of which can be displaced on the other is guided and can be fixed in this by means of an adjusting screw, a support device can be used of the invention vary in their adjustment range by approximately a factor of two. With a suitable length of each of the two tubes Such a support device can already be adapted to a very large part of the commercially available loudspeaker boxes will.

An embodiment of the invention is shown in the drawing and is explained in more detail below. In the Show drawing

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Fig. 1 is a perspective view obliquely from the front, above

on a support device,

FIG. 2 shows a plan view of the support device according to FIG. 1, FIG. 3 shows a side view of a support device according to FIG. 1,

but with a dash-dotted loudspeaker box, FIG. 4 shows a rear view of a device according to FIG. 3.

As the figures show, the supporting device consists essentially of two, approximately U-shaped side parts 1, 2 and a parallel guide connecting them and keeping them at a distance

Each side part 1.2 consists of a base piece 4, a vertical connector 5 and a support rail 6 with vertical and horizontal investment areas 7,8. Bottom pieces 4 and 5 vertical connectors are each tubular profiles with a square Cross-section, the vertical connector 5 is welded onto the rear end of the base piece 4. He stands in an angle of about 60 ° to the horizontal obliquely upwards and forwards. The support rail 6 of each side part 1, 2 is in turn welded onto the upper end of the vertical connector 5; viewed from the side, these form three Parts 4, 5, 6 therefore roughly form a lying U open at the front (see Fig. 3). This design of the side parts 1,2 is crucial for the lightness of the shape of the support device and for the visually weightless support of a voluminous one Loudspeaker box 9 at.

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The support rail 6 is also a hollow profile with a square internal cross-section that corresponds to the internal cross-section of the other two Pipe profile is the same. The support rail 6 rises from the rear to the front at an angle of approx. 6 °, which results in the Sound radiation obliquely upwards, in front. The profile of the support rail also has an outer, upwardly protruding one Web 10, which serves as a vertical contact area 7 on its inner surface. The horizontal investment areas 8 are formed by the upper surfaces 11 of the support rails 6. This and the inner surfaces of the webs are expediently covered with foam strips.

The free ends of the bottom piece 4 and the support rail 6 are located approximately perpendicular to each other (Fig. 3), they are closed by plugs 12 made of plastic.

The parallel guide engages approximately in the upper third of the vertical connector 5 3 on. For this purpose, a horizontal is in each case at right angles to the side parts 1, 2 on the left side part 1 (FIG. 1) extending pipe 13 is welded, which is guided in an associated pipe 14 of the right side part 2. Also the leading one Tube 14 is welded to the associated right side part 2, protruding horizontally inwards. Both tubes 13,14 have same length, the inner diameter of the leading pipe 14 is adapted to the outer diameter of the guided pipe 13, that both can still easily be shifted against each other.

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The parallel guide 3 is fixed by means of an adjusting screw 15. For this purpose - at a certain distance from the free end of the leading tube 14 and thus to secure a certain guide path - a radially running thread is provided, in which an adjusting screw designed as a wing screw 15 engages and against which this wing screw is supported when its front end against the guided tube 13 is pressed to hold this.

In the inner channel of the support rail 6 of the left side part 1 is a leg 16 of an L-shaped holder 17 out of a tubular profile with a circular cross-section. The other, free leg 18 of the holder 17 protrudes backwards, up front and lies on the back of a loudspeaker box 9. This gives this additional support and avoids the speaker box 9 to the rear (Fig. 3 to the left) slides. In the rear end of the support rail 6 and at a sufficient distance below its upper surface 11 is another threaded hole intended. A wing screw 18 is screwed into this, which holds or releases the holder 17 in the left support rail.

10 list of web reference numerals 11 upper surface of FIG

1 side panel (left) \\ ^St °?. ^ ^He} _n.

2 side part right) \\ l ^^^ tl

3 parallel guidance ] \ ^ 5? ^nd " ^R ° ^hr

4 base piece \\ adjusting screw

5 vertical connectors * guided leg from 17

^{6 support rail} '' _ Haiter

7 Plant area (vertical) \\ J " ^le F ^s = ^h ^ el of 17

8 contact area (horizontal) ^{19 nail screw}

9 loudspeaker box

Claims (7)

PROTECTION CLAIMS
/ i7] Support device for a loudspeaker box, 'thereby Ve indicates that they have two edgewise Side parts (1,2), on the top of which are L-shaped, the lower side edges of the loudspeaker box (9) encompassing contact areas (7,8) and on the underside of which base pieces (4) are provided, as well as one that connects the two side parts (1,2) transversely and having a spacing, length-adjustable parallel guide (3). 2. Support device according to claim 1, characterized in that contact areas (7,8) at an angle of less than twenty degrees sloping backwards in relation to the horizontal. 3. Support device according to claim 1 or 2, characterized in that that each side part (1,2) is U-shaped from a horizontal direction from front to back, of a tubular profile with a square cross-section formed bottom piece (4); one welded onto the rear end of this base piece (4), Vertical connector (5) protruding obliquely forward and upward in the form of a tubular profile of the same cross-section and one with its rear end area on the upper end of the vertical connector (5) welded support rail (6) and the Support rail (6) a tubular profile with the inner cross-section of the the other two pipe profiles, but with an additional one on the outside 7822244 16.1178 laterally and upwardly protruding web (10), the inner surface of which the vertical contact area (7) forms. 4. Support device according to one of claims 1 to 3, characterized characterized in that in the inner channel of the support rail (6) of a side part (1 or 2) a leg (16) of an L-shaped Holder (17) out and lockable by means of an adjusting screw (15) is. 5. Support device according to claim 4, characterized in that the other free leg (18) of the holder (17) about the axis of the guided leg (16) is pivotable and has contact areas on the rear wall of the loudspeaker box (9). 6. Support device according to one of claims 1 to 5, characterized in that the parallel guide (3) is formed by two tubes (13, 14) of the same length, guided one inside the other Circular cross-section, each with their outer ends on opposite inner surfaces of the vertical connector (5) are welded on. 7. Support device according to claim 6, characterized in that that at a distance of about two to five centimeters from the free: end of the leading tube (14) cut a thread radially is, into which a wing screw (19) can be rotated. 7822244 11/16/78 .40 **