[0001] The present invention relates to an attachment device for sounding boards or bars
of musical percussion instruments, of the type comprising the features recited in
the preamble of claim 1.
[0002] In more detail, the invention applies to xylophones or similar musical percussion
instruments, provided with sounding boards or vibrating bars each of which reproduces
a note or different sound when it is struck with a hammer.
[0003] It is known that in some types of instruments of the above mentioned kind each sounding
bar is linked in a removable manner, close to one or both of its ends, to the supporting
base of the instrument by appropriate attachment devices. Usually, these attachment
devices are formed of connecting elements having the shape of a finger or a hook for
example, that pass through respective holes formed in the sounding bar itself and
projecting from the upper face thereof.
[0004] However, the attachment devices of known type briefly described above have some important
drawbacks. In fact, due to the presence of fingers or hooks projecting from the upper
surface of the sounding bars the useful surface for percussion of the bars themselves
is greatly restricted, above all with reference to the bars of smaller sizes intended
for reproducing the highest sounds.
[0005] This problem appears in a still more apparent manner if each sounding bar is engaged
close to both its opposite ends for the purpose of being better linked to the instrument
base, so that in many cases the bars are preferably linked at one end alone, exactly
for the purpose of limiting those drawbacks resulting from a reduction in the useful
percussion surface.
[0006] However, when each sounding bar is linked by connecting elements close to only one
of its ends, whereas the opposite end portion is merely received in a sunken seating
exclusively holding it at the side edges, displacements and accidental separations
of the sounding bars from the supporting base are more likely to occur, which may
bring about a possible loss of said bars above all in case of instruments to be used
by children.
[0007] In an attempt to counteract the last mentioned event, some types of instruments are
provided with a cover that, being lowered onto the sounding bars when the instrument
is not used, stops any accidental displacement of same.
[0008] In other types of instruments, the sounding bars are firmly linked, but still with
the possibility of vibrating, by cables or wires passing through horizontally-formed
transverse holes between the side edges of the bars themselves. In this way the upper
faces of the bars are completely available for percussion, but replacement of one
or more bars is obviously complicated since the bars to be replaced are to slipped
off the cables together with the bars preceding or following them and therefore dismantling
and subsequent mounting of the whole instrument is practically required. For the above
reason, technical solutions of this type are exclusively adapted for instruments of
the professional type having sounding bars of appropriate thickness, but practically
cannot be proposed when the bar thickness is rather reduced, as well as in case of
diatonic instruments for amateur use, where the possibility of easily replacing the
sounding bars so as to be able to play musical pieces in different keys is normally
required.
[0009] Under this situation, the technical task underlying the present invention is to conceive
an attachment device for sounding boards or bars in xylophones and the like, capable
of substantially obviating the mentioned drawbacks.
[0010] Within the scope of this technical task it is an important aim of the invention to
provide an attachment device making the upper surfaces of the sounding bars completely
available for percussion and, at the same time, enabling a good stability to be achieved
in connecting the sounding bars to the supporting base of the instrument and a simultaneous
possibility of easily removing one or more of said bars, for a possible replacement
of them, for example.
[0011] The technical task mentioned and the aims specified are substantially achieved by
an attachment device for sounding bars having the features set forth in the characterizing
portion of claim 1.
[0012] The description of a preferred non-exclusive embodiment of an attachment device for
sounding bars in xylophones and the like in accordance with the present invention
is now given hereinafter by way of non-limiting example, with reference to the accompanying
drawings, in which:
- Fig. 1 is a perspective view of a xylophone or similar musical instrument provided
with attachment devices in accordance with the invention; and
- Fig. 2 is a fragmentary cross-section taken along line 1-1 in Fig. 1, highlighting
the structural features of the device of the invention.
[0013] With reference to the drawings, an attachment device for sounding bars in xylophones
and the like in accordance with the present invention has been generally identified
by reference numeral 1.
[0014] The device 1 for each sounding bar 2 comprises two pairs of connecting elements 3,
each of which consists of a first connecting element 4 integral with the sounding
bar 2, and a second connecting element 5, integral with a supporting base 6 of the
musical instrument, which elements are susceptible of being removably engaged with
each other close to an end portion of the sounding bar 2.
[0015] The first connecting element 4 exclusively projects from a lower face 2a of bar 2
and is substantially shaped in the form of a hook. For sounding bars of metal material,
made of an aluminium alloy for example, the hook-shaped element 4 can be advantageously
obtained by cutting out a portion of the bar 2 itself which is then suitably bent
over on the side of the lower face 2a, so as to form a loop with said face, which
loop has an opening turned towards the corresponding bar end.
[0016] The second connecting element 5 is defined by a grip element having a bored portion
7 adapted to house the hook-shaped element 4. Practically, the grip element 5 is made
of an elastomer material and comprises a portion 5a for junction to the supporting
base 6 in the form of a dovetail for example, two posts 5b extending from the junction
portion 5a and a crosspiece 5c for connection between the posts 5b. Extending over
the crosspiece 5c, preferably on top of the corresponding posts 5b, there are two
pointed projections 5d (only one of which is shown in the accompanying drawings) forming
two supports for the sounding bar 2. Posts 5b and crosspiece 5c define the bored portion
7 into which the hook-shaped element 4 can be fitted.
[0017] Said hook-shaped element comprises an end portion 4a suitably spaced apart from the
lower face 2a of the sounding bar 2, so that the loop formed by it can hold the crosspiece
5c and the support projections 5d.
[0018] The mounting modality of each sounding bar 2 through the device of the invention
described above mainly as regards structure, is as follows.
[0019] After inserting a hook-shaped element 4 corresponding to one of the end portions
of a bar 2 into the respective grip element 5, by deeply pressing the hook-shaped
element against the crosspiece 5c and utilizing the elasticity of the latter, the
other hook-shaped element 4 too of the same bar can be easily fitted into the corresponding
grip element. In this way the vibrating bar is firmly anchored to the supporting base.
[0020] If a bar is wished to be removed for replacing it with another adapted to produce
a different note for example, it is first of all necessary to exert a thrust action
on the bar moving it laterally until one of the two hook-shaped elements 4 is released
from the respective grip element 5.
[0021] The second hook-shaped element too is subsequently disengaged by slightly inclining
the bar upwardly and moving the latter longitudinally in the opposite direction relative
to the first displacement.
[0022] The invention achieves important advantages.
[0023] It is to point out first of all that each sounding bar mounted to the supporting
base of an instrument by means of the device of the invention does not exhibit any
projecting element in its upper surface: said surface is therefore thoroughly available
for percussion.
[0024] In addition, while the attachment device of the invention enables quick and easy
mounting and dismantling operations of each sounding bar, it firmly fastens said bar
to the supporting base of the instrument and prevents displacements or removals thereof
of the accidental type, avoiding additional holding elements such as covers and the
like being added.
1. An attachment device for sounding bars of musical percussion instruments, comprising
at least one pair of connecting elements (3) for each sounding bar (2), to be removably
engaged with each other, characterized in that said pair of connecting elements comprises
a first connecting element (4) integral with the sounding bar and projecting from
the lower face (2) thereof and a second connecting element (5) integral with a supporting
base (5) of the musical instrument.
2. A device as claimed in claim 1, characterized in that said connecting elements (3)
comprise a shaped element (4) substantially in the form of a hook and a grip element
(5) having a bored portion (7) adapted to house said hook-shaped element (4).
3. A device as claimed in claim 2, characterized in that said first connecting element
(4) integral with the sounding bar is embodied by said hook-shaped element and said
second connecting element (5) integral with the supporting base (6) is embodied by
said grip element.
4. A device as claimed in claim 3, characterized in that said hook-shaped element (4)
consists of a cut-out and bent-over portion of said sounding bar (2).
5. A device as claimed in claim 2, characterized in that said grip element comprises:
- a portion (5a) for junction to the supporting base (6) of the instrument,
- two posts (5b) extending from said junction portion (5a), and
- a crosspiece (5c) for connection between two posts (5b), said posts (5b) and crosspiece
(5c) defining said bored portion (7).
6. A device as claimed in claim 3, characterized in that said grip element (5) is made
of an elastomer material and comprises at least one upper projection (5d) for support
of the sounding bar (2).
7. A device as claimed in claim 1, characterized in that for each sounding bar (2) provision
is made for two pairs of said connecting elements (3) disposed close to opposite end
portions of the sounding bar (2) itself.