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JP2001309479

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DESCRIPTION JP2001309479
[0001]
BACKGROUND OF THE INVENTION 1. Field of the Invention The invention relates to a coupling
unit according to claim 1, for angularly coupling at least two loudspeaker boxes. Furthermore,
the invention relates to a loudspeaker box which is coupled to one another by means of
corresponding coupling units.
[0002]
BACKGROUND OF THE INVENTION Coupling units of the type mentioned in the introduction are
already known. It is a disadvantage that, for example, the angular adjustment of the two
interconnected loudspeaker boxes can only be carried out in a cumbersome manner by means of
known coupling units. Because the coupling unit has to be adjusted so that at least one
loudspeaker box can move freely for its own angular adjustment. Because of this free movement
of the loudspeaker box to be newly positioned, the loudspeaker box may possibly be kept in the
desired working position, in particular by the person in charge of this task. At the same time, the
combined unit is attached by another person at the job. In particular, in the case of loudspeaker
boxes of relatively large size, two people are required to position the at least one loudspeaker box
and to attach the coupling unit. In order to adjust the angle of one or more loudspeaker boxes
quickly and accurately, in some cases additional control of the angular adjustment from time to
time from a certain viewing position spaced from the loudspeaker box You need a third person.
This is because the coupling unit has to be adjusted so that at least the two-car box can move
freely for its own angular adjustment. Because of this free movement of the loudspeaker box to
be newly positioned, the loudspeaker box may possibly be kept in the desired working position,
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in particular by the person in charge of this task. At the same time, the combined unit is attached
by another person at the job. In particular, in the case of loudspeaker boxes of relatively large
size, two people are required to position the at least one loudspeaker box and to attach the
coupling unit. In order to adjust the angle of one or more loudspeaker boxes quickly and
accurately, in some cases additional control of the angular adjustment from time to time from a
certain viewing position spaced from the loudspeaker box You need a third person.
[0003]
SUMMARY OF THE INVENTION The quick and accurate adjustment of the angles of at least two
interconnected loudspeaker boxes by means of known coupling units can be carried out using a
relatively large number of workers and / or It is a disadvantage that it can only be performed in
an awkward way.
[0004]
It is an object of the present invention to adjust coupling units of the type mentioned in the
introduction to the angles of at least two interconnected loudspeaker boxes quickly, reliably and
accurately in an easy and reliable manner. It is to improve as you can.
[0005]
SUMMARY OF THE INVENTION In order to solve this problem, a first support portion assigned to
one loudspeaker box and a second support portion assigned to the other loudspeaker box These
support parts are articulated to one another and the angular position they occupy each time
between the two support parts is adjustably defined by an angular position device which acts like
a turnbuckle. A combination unit according to claim 1 is proposed.
By means of the coupling unit thus formed, an intentional angular adjustment based on the hinge
joint between the two support parts of the at least two interconnected loudspeaker boxes can be
carried out.
An angular position device acting like a turnbuckle ensures that the loudspeaker box always
assumes a stable angular position during adjustment of the angle of one or more loudspeaker
boxes. The angular position of the corresponding loudspeaker box, which is variably adjustable
by means of the angular position device, is stable at all adjustable angular adjustment points.
Because the angular position device operates substantially without play, the loudspeaker boxes
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are continuously positioned relative to one another before, during or after adjustment of the
loudspeaker box angles. Thus, the angular position device ensures variable adjustability of the
loudspeaker box while at the same time reliably preventing the occurrence of an adverse,
unstable angular position of one or more loudspeaker boxes. The angular adjustment of the two
interconnected loudspeaker boxes by means of an angular position device acting like a
turnbuckle can be made in a way that is easy to handle by a single person, this person only
having an angular position device In contrast to the prior art, it is not necessary, moreover, that
in some cases other people do not have to stably position the one or more loudspeaker boxes to
be angled. It is particularly advantageous that the subject of the present invention is that at least
two loudspeaker boxes can be hung in a very easy way. The reason is that the coupling unit
mounts the two loudspeaker boxes together and the loudspeaker box thus attached is stored in
the correct position in space, preferably only by suspension means etc. It can be done. In this
case, the suspension means act at any point of the unit consisting of the two loudspeaker boxes
and the coupling unit. Preferably, a mounting unit is provided in order to create a mounting point
for the whole unit. Preferably, the loudspeaker box is vertically aligned by means of the coupling
unit according to the invention. Horizontal alignment of the loudspeaker box is made
independently of the coupling unit by a plurality of separate elements.
[0006]
Preferably, each end of the angular position device is operatively connected to one of two. This
allows the coupling unit to be realized as an easy to assemble, compact, pre-mounted component.
The reason is that the two support parts can be operatively connected with the angular position
device angularly before attachment to the associated loudspeaker box.
[0007]
Preferably, each support portion is attached to a support element holding one loudspeaker box.
This allows, on the one hand, a reliable and stable mounting of, in particular, a relatively large
and / or heavy loudspeaker box, and on the other hand, a premounting of the coupling unit, the
corresponding support element and the support element. Is possible. Because the loudspeaker
box can be attached to the relevant support element at a later point in time.
[0008]
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It is an advantage that the support part is two identically formed components. The two
articulated joints ensure the same function, i.e. fixed attachment of the coupling unit to the
corresponding loudspeaker box and / or the associated support elements, at the same time one
or more The two support parts can be formed as the same type of component, since they have
the function of being able to adjust the angle of the loudspeaker box of the loudspeakers of. This
guarantees reduced manufacturing costs and relatively easy mounting and / or pre-mounting.
[0009]
In a preferred embodiment, the angular position device is operatively connected to an adjusting
sleeve comprising a left internal thread at one end and a right internal thread at the other end,
and an adjusting sleeve on the end side and each having a corresponding external thread. A
threaded bolt, the end of the threaded bolt spaced from the adjustment sleeve being articulated
and non-rotatable with respect to the longitudinal axis to the relevant support part. The angular
position device thus formed, acting like a turnbuckle, comprises at least two loudspeaker boxes
operatively connected by a coupling unit by simply rotating the adjustment sleeve about its
longitudinal axis A reliable, easy to handle, stable angular adjustment at any angular position. In
this case, stability is maintained at any angular position based on the permanent threaded
engagement between each threaded bolt and the adjustment sleeve.
[0010]
Preferably, lock nuts are provided respectively for stopping the angular position device. The lock
nut is rotationally adjustable on the associated threaded bolt and is in contact with the
adjustment sleeve on the end side. The lock nut, which is contacted at each end side, is for one
corresponding loudspeaker by rotating the adjustment sleeve about its longitudinal axis so as to
move the plurality of threaded bolts longitudinally to the adjustment sleeve Prevent unwanted
angular adjustment of the box. Such a rotation of the adjustment sleeve is only possible if the two
lock nuts attached to the corresponding threaded bolt are at a distance from the relevant end of
the adjustment sleeve.
[0011]
In a preferred embodiment, each end of the plurality of support portions has a mounting web
provided in the middle, the mounting web being of an angular position device extending
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perpendicularly to the axis of rotation of the support portion. It is for articulating attachment of
the associated ends. This makes possible a compact and favorable configuration for the
transmission of the coupling unit.
[0012]
The supporting part is formed in a substantially U-shaped cross-section parallel to its own axis of
rotation, by means of a hinge bolt provided coaxially to the axis of rotation in the area of overlap
of the corresponding lateral webs. They are operatively linked to each other. The support
portions formed in the U-shaped cross section have in particular deformation stability, making it
possible in a relatively easy manner to create hinge joints between the support portions in the
overlapping area of the corresponding lateral webs .
[0013]
Preferably, the support elements are each formed with a U-shaped longitudinal section, and each
loudspeaker box is rotatably mounted on the associated support element. The rotationally
adjustable attachment of one of the loudspeaker boxes to a support element may, for example, be
each attachment mechanism operatively connecting the legs of the support element to the top
and bottom of the loudspeaker boker box. Can be done by In this case, the loudspeaker box is
thus kept between the two opposing, spaced apart legs of the support element. Adjustment of the
loudspeaker box rotation between the legs is possible. Other preferred configurations of the
present invention are apparent from the specification.
[0014]
BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will
now be described in detail with reference to the drawings. FIGS. 1 and 2 show two loudspeaker
boxes 11, 12 arranged vertically, which are held by the associated support elements 16, 17 by
means of the coupling unit 10. They are connected to one another in an angularly adjustable
manner. The respective top and bottom faces 46 and 47 of the loudspeaker boxes 11, 12 are
operatively connected to the associated legs 45 of the support elements 16, 17 which are Ushaped in longitudinal section. The coupling unit 10 comprises a first support portion 13
assigned to the upper loudspeaker box 11 and a second support portion 14 assigned to the lower
loudspeaker box 12. The support parts 13, 14 are articulated to one another. The two support
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parts 13, 14 have at each end a mounting web 25, 26 provided in the middle. The associated
ends of the angular position device (Winkelpositionsvorrichtung) 15 are articulated on a plurality
of mounting webs. The angular position device 15 is formed as an adjusting device which acts
like a turnbuckle, by means of which the angular position, which is taken from time to time
between the two support parts 13, 14, is adjustably determined be able to. This means that the
angular position device 15 ensures a stable angular position of the two loudspeaker boxes 11, 12
at any of the variably adjustable angular positions of the support parts 13, 14. By activating the
angular position device 15 acting like a turnbuckle, the loudspeaker box 11, 12 is pivoted around
the longitudinal axis of the hinge pin 31 which operatively connects the two support elements
13, 14, as indicated by the arrow 43. As shown, the turns between the bottom surface 47 of the
upper loudspeaker box 11 and the top surface 46 of the lower loudspeaker box 12 can be
pivoted towards each other or away from each other. An angular position is formed by the
movement angle α. The angular position device 15 assures the occasional stable operating
position of these loudspeaker boxes before, during and after the adjustment of the angles of the
loudspeaker boxes 11, 12. Thus, the angular position device 15 can variably adjust the desired
angular adjustment of the two loudspeaker boxes 11, 12 at the same time, while at the same time
the two loudspeaker boxes 11, 12 Even in particular, during angular adjustment of the
loudspeaker box, however, it is ensured that they are positioned relative to one another in a
stable manner.
[0015]
FIG. 3 is an enlarged schematic view of the coupling unit 10 shown in FIGS. The two support
parts 13, 14 of this coupling unit 10 are linked to one another as shown in FIG. From the active
position (angle .alpha. = 0) to the angular position (angle .alpha.> 0) shown in FIG. 2 and by
corresponding operation of the angular position device 15 the straight line shown in FIG. Can be
controllably pivoted back again. The angular position device 15 has an adjustment sleeve 18
having a left internal thread at one end and a right internal thread at the other end. The
adjustment sleeve 18 is operatively connected at each end with threaded bolts 19 and 20
including corresponding external threads 21 and 22. One end of the two threaded bolts 19 and
20 with the corresponding external threads 21 and 22 is screwed into the adjustment sleeve 18
and is spaced apart from this adjustment sleeve 18 and is U-shaped or fork-shaped. The ends 35
are operatively connected to the mounting webs 25, 26 of the associated support part 13 or 14
by respective hinge bolts 36 forming a hinge joint.
[0016]
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The operative connection between the threaded bolt 19 or 20 and the support portion 13 or 14
is such that the threaded bolt 19 or 20 can not rotate about the longitudinal axis 32 and at the
same time the angle By actuation of the positioning device 15, it can be pivoted relative to the
corresponding support parts 13, 14 about the longitudinal axis (not shown) of the associated
hinge bolt 36. The adjustment sleeve 18 has at least one actuation opening 34. A lever (not
shown) is inserted into this actuating opening and, as indicated by the arrow 44, the adjusting
sleeve 18 is rotated about the longitudinal axis 32, and the angular position device 15 is
actuated. In order to stop the adjustment sleeve 18 and thus also the angular position device 15,
lock nuts 23, 24 are provided, which are rotationally adjustable on the associated threaded bolt
19 or 20 and are adjusted on the end side It can be in contact with the sleeve 18.
[0017]
The support portions 13, 14 are formed substantially in a U-shaped cross section parallel to their
axis of rotation 27 and can be rotated relative to the axis of rotation 27 in the overlap region 28
of the corresponding lateral webs 29, 30. They are operatively connected to one another by
means of hinge bolts 31 provided on the shaft. In the overlap region 28 there is always one
opening 48 between the side webs 29 and 30. This opening allows the support portions 13, 14
to be smoothly pivoted to an angular position (see also FIG. 2). The mounting surfaces 49 of the
support portions 13, 14 each have a plurality of elongated through holes. These through holes
are used, for example, by means of screw joints to attach the coupling unit 10 to the support
elements 16, 17 by means of coupling joints. Furthermore, there is no structural difference
between the support portions 13 and 14 since the two support portions 13 and 14 are formed as
one and the same component. As shown in FIG. 3, the coupling unit 10 can be completely premounted as completely pre-mounted as a compact assembly.
[0018]
In order to actuate the angular position device 15, the lock nuts 23, 24 are rotated to a position
spaced from the corresponding end of the adjustment sleeve 18. Subsequently, the adjusting
sleeve 18 is rotated by means of a lever (not shown) inserted into the actuating opening 34
around one of the longitudinal axes 32 into one of two rotational positions, as indicated by the
arrow 44. Can. Because one end of the adjustment sleeve 18 has a left internal thread and the
other end has a right internal thread, the rotational movement of the adjustment sleeve causes
the threaded bolts 19, 20 to move longitudinally into or out of the adjustment sleeve 18 And
thus cause a pivoting movement of the two support parts 13, 14 about the axis of rotation 27.
Based on this pivoting movement, the angles of the two loudspeaker boxes 11, 12 (see FIG. 2)
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can be controlled relative to one another. The two loudspeaker boxes 11, 12 are positioned
relative to one another in a stable manner by the adjusting or coupling unit 10, even during
angular adjustment.
[0019]
As shown in FIGS. 1 and 2, the legs 45 of the support elements 16, 17 each have two elongated
holes 38, 41 curved in an arc. The two slots 38, 41 are used for rotationally adjustable mounting
of the corresponding loudspeaker boxes 11, 12 on the associated support elements 16, 17,
respectively. A mounting element 39 extends through the slot 38 through the mounting hole 39,
which is operatively connected to the top 46 and / or the bottom 47 of the loudspeaker box 11,
12 and released In position, it is movable along the slot 38. Another mounting element 40 is
provided at a certain rotation point of the arrangement 12 at a certain rotation point of the
corresponding loudspeaker box 11, 12. This rotation point is the geometric center of the
elongated hole 38 formed in an arc shape. The mounting elements 39, 40 are thus, in the relaxed
state of operation, in other words, the mounting elements 39, 40 of the corresponding support
elements 16, 17 and the associated legs 45 loosely and In the following manner, that is to say
when operatively connected in the manner of the associated support, ie the relative movement
(rotation) of the corresponding loudspeaker box in the associated support elements 16, 17 The
associated loudspeaker boxes 11, 12 can be rotationally adjusted about a longitudinal axis (not
shown) passing through the mounting element 40. According to another embodiment, louds can
be made. According to another embodiment, such a rotational adjustment of the loudspeaker box
can likewise be achieved by means of the slots 41 which are preferably curved in a circular arc.
This slot can, for example, be operatively connected to two mutually spaced attachment elements
(not shown). The mounting element 17 additionally has a mounting unit 42. The mounting unit
17 additionally has a mounting unit 42. By means of the mounting unit, the components shown
in FIGS. 1 and 2 and consisting of the two loudspeaker boxes 12, the two support elements 16,
17 and the coupling unit 10 are suspended, for example, on a chain block (not shown). It can be
worn.
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