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| United States Patent | 4581973 |
| Link to this page | http://www.wikipatents.com/4581973.html |
| Inventor(s) | Hoshino; Yoshiki (Owariasahi, JP) |
| Abstract | A pad for an electronic drum has a vibration responsive plate that is
mounted on a cushion and has on its upper surface a relatively thin buffer
pad, the plate having cushioning means on its outer edge between it and
peripheral supporting structure, and a drumhead stretched directly over
the buffer pad and retained by a cover member held in spaced relation from
the plate, so that the feel of the pad is quite natural to the player and
that vibrations from the frame or supporting structure are insulated from
the plate, and that the plate vibrations are not adversely affected, the
plate carrying a microphone or other sound pick-up means. |
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Title Information  |
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Drawing from US Patent 4581973 |
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Pad with drumhead for electronic drum |
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| Publication Date |
April 15, 1986 |
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| Filing Date |
October 29, 1984 |
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| Priority Data |
Mar 31, 1984[JP]59-047784[U] |
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Title Information  |
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References  |
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| *references marked with an asterisk below are user-added references |
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| Market Size |
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| Reasonable Royalty |
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Market Review  |
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Technical Review  |
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Claims  |
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I claim:
1. A drum pad for mounting on a support comprising a base member having
upstanding wall means, first cushion means mounted on the base means and
inwardly of said wall means, a relatively hard and rigid plate member
mounted on the cushion means, said plate member having an outer peripheral
edge spaced inwardly of said wall means, sound pick-up means mounted on
said plate member, a relatively soft pad overlying the plate member,
second cushion means positioned in the space between said outer peripheral
edge of said plate member and said wall means, a drumhead having a rim
portion which extends outwardly beyond said wall means, and a cover
member, said cover member extending in spaced relation around and above
the outer portion of the base member and engaging said rim portion of said
drumhead, and fastening means adjustably securing said cover member and
said rim portion and said drumhead in assembled relationship.
2. The invention of claim 1, in which said wall means is integral with said
base member.
3. The invention of claim 1, in which said first cushion means extends
around the peripheral portion of said base member and is open in its
center.
4. The invention of claim 3, in which said first cushion means comprises
spaced cushion elements.
5. The invention of claim 1, in which said plate member has substantial
thickness providing upper and lower side edges, and said second cushion
means is mounted on the outer peripheral edge of said plate member
substantially midway of said upper and lower side edges. |
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Claims  |
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Description  |
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BACKGROUND OF THE INVENTION
1. Field of the Invention
This invention relates to musical instruments, more particularly those of
the percussive type in which the sound is picked up by a microphone
mounted on the instrument, itself. It further relates to a drum pad in
which the conventional head may be omitted, but in which the construction
and arrangement of the elements is such as to simulate the natural feel of
a conventional head.
2. Description of the Prior Art
Drum practice pads which include relatively rigid support structure and
cushion members thereover have been provided in the past as for example in
the U.S. Pat. No. 3,264,926, to Bell and U.S. Pat. No. 3,597,520 to
Andrews. However, these were intended merely for practice purposes rather
than for performance and do not disclose any means for amplification.
The U.S. Pat. No. 3,509,264 to Green discloses what appears to be a
conventional drumhead having a sound amplifier connected thereto. The U.S.
Pat. No. 4,279,188 to Scott discloses a practice pad in which an
electromechanical transducer is substantially contiguous with the
drumhead, and in which a speaker cone type pick-up is installed on the
base of the body in order to pick-up the vibrations generated by hitting
the drumhead.
SUMMARY OF THE INVENTION
A drum pad in accordance with the present invention has a relatively rigid
plate member which is responsive to the vibrations received from being
struck by the instruments used by the player of the drum, in which the
plate is mounted on an appropriately supported cushion member and has an
overlying buffer pad and adjustable drumhead, the plate being mounted so
that it is spaced away from a side retaining wall by a cushioning element
thereby insulating the plate from vibrations that otherwise may be
transmitted from the supporting structure and at the same time providing a
pad that has a natural feel for the player.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is an exploded view of a drum pad in accordance with the present
invention;
FIG. 2 is a section to an enlarged scale through a portion of the device of
FIG. 1 in assembled relationship; and
FIG. 3 is a section, to a still larger scale, of the outer edge portion of
the plate members and the cushioning elements, illustrating these elements
during playing when the plate member is tilted.
DESCRIPTION OF THE PREFERRED EMBODIMENT
With further reference to the drawings there is illustrated a base 10 which
may be mounted in any suitable manner for use by a player. The base has an
outer rim portion 11 and an upstanding outer wall 12 adjacent thereto, and
an upstanding inner wall 13 which is spaced inwardly thereof. Wall 13 is
preferably subtantially circular and is spaced away from the axis of the
base 10.
Mounted on the base 10 and just within the inner surface wall 13 is a
cushion member 15 of polyurethane foam or the like, of substantial
thickness. The cushion member is preferably ring shaped and is preferably
of disconnected or spaced segments 15a 15b, 15c and 15d as illustrated in
FIG. 1. To enhance the cushioning effect, the cushion member 15 supports a
plate member 18 which, in the illustrated embodiment, is of circular
configuration and of a width or diameter such that its outer rim is spaced
from the inner surface of the wall 13.
The plate 18 is substantially rigid and constructed of material, such as a
fiber board veneer, that is particularly adapted to respond to the
vibrations received from the instruments used by the player, such as
drumsticks or brushes or the like.
Mounted in the space between the outer rim of the plate 18 and the
upstanding wall 13 is a cushioning element 20 which is preferably affixed
to the outer rim of the plate 18, centrally between its upper and lower
side edges 1, as illustrated in FIG. 1, and may, if preferred, be of
spaced segments instead of being continuous. The thickness of the
cushioning 20 is preferably such that a slight space, say one millimeter,
is left between its outer surface and the inner surface of the wall 13,
for purposes which will be described.
Mounted on the underside of the plate 18 in a recess 18' is a microphone or
other sound pick-up device 22 which is connected to an amplifier (not
shown) by conventional means.
The top surface of the plate 18 has a relatively soft buffer pad 25, which
may be of sponge rubber or the like, and preferably has a thickness of
between two and five millimeters. The buffer pad preferably extends past
the outer rim of the plate 18 and into abutting engagement with the inner
surface of the wall 13.
Disposed over the pad 25 is a drumhead 30 having a central or playing
portion 31 and a ring-like rim portion 32 which extends beyond the
upstanding wall 13 of the base 10. The drumhead and pad together provide
an improved natural feeling for the performer as he strikes the drumhead.
In order to hold the elements in assembled relationship a ring-shaped cover
member 35 is provided having a raised inner rim portion 36, mounted in
spaced relation from the upper edge of the wall 13, and a lower stepped
inner rim portion 37, which is spaced outwardly of rim portion 36 and
engages the rim portion 32 of the drumhead 30 (FIG. 2). The cover has an
aperture 39 for receiving a bolt 40 secured by nut 41, the bolt also
passing through aperture 42 in the base 10.
The cover has an outer rim portion 43 which is in spaced relation from the
rim portion 11 of the base portion 10. Rim portion 43 has an inner rim
surface portion 44 which engages the outer rim portion 11 of base 10 in
order to guide the parts in their adjusting positions.
Accordingly, it can be seen that by adjustment of nut 41 the tightness of
the drumhead may be varied to suit the preference of the individual
performers.
As indicated in FIG. 3 when a substantial playing force P is applied to one
side of the head surface the plate member may be depressed at one side but
the cushioning member 15 still maintains the plate out of engagement with
the sidewall 31. Thus, vibrations transmitted from the external support
structure and the outer cover are largely avoided. Furthermore, vibrations
in the plate are not adversely affected nor transmitted to the rigid
support structure due to direct contact with the wall 13 which would occur
in the absence of the cushioning 20.
The overall structure makes it possible to produce accurately and with fine
shading the player's beating vibrations, at the same time reducing the
fatigue of the player, thereby providing improved functional advantages as
compared with conventional products.
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Description  |
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