WO2008146146A2 - Variable geometry strainer with micrometric adjustment for snare drum - Google Patents
Variable geometry strainer with micrometric adjustment for snare drum Download PDFInfo
- Publication number
- WO2008146146A2 WO2008146146A2 PCT/IB2008/001368 IB2008001368W WO2008146146A2 WO 2008146146 A2 WO2008146146 A2 WO 2008146146A2 IB 2008001368 W IB2008001368 W IB 2008001368W WO 2008146146 A2 WO2008146146 A2 WO 2008146146A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- traction
- snare
- shell
- strainer
- drum
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10D—STRINGED MUSICAL INSTRUMENTS; WIND MUSICAL INSTRUMENTS; ACCORDIONS OR CONCERTINAS; PERCUSSION MUSICAL INSTRUMENTS; AEOLIAN HARPS; SINGING-FLAME MUSICAL INSTRUMENTS; MUSICAL INSTRUMENTS NOT OTHERWISE PROVIDED FOR
- G10D13/00—Percussion musical instruments; Details or accessories therefor
- G10D13/10—Details of, or accessories for, percussion musical instruments
- G10D13/18—Snares; Snare-strainers
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10D—STRINGED MUSICAL INSTRUMENTS; WIND MUSICAL INSTRUMENTS; ACCORDIONS OR CONCERTINAS; PERCUSSION MUSICAL INSTRUMENTS; AEOLIAN HARPS; SINGING-FLAME MUSICAL INSTRUMENTS; MUSICAL INSTRUMENTS NOT OTHERWISE PROVIDED FOR
- G10D13/00—Percussion musical instruments; Details or accessories therefor
- G10D13/01—General design of percussion musical instruments
- G10D13/02—Drums; Tambourines with drumheads
Definitions
- the present invention refers to a variable geometry strainer with micrometric ad- justment for snare drum. State of the art
- the snare drum is a-musical percussion instrument consisting of a hollow cylindrical shell (providing-the resonating chamber) with a stretched skin fitted over the two ends forming the top drumhead which generates the sound, i.e. the batter head, and the bottom drumhead which moves by sympathy, i.e. the resonating head.
- the peculiarity that distinguishes the snare drum from other types of drum is the presence of a snare unit, i.e. a set of a variable number of parallel wires, generally metal and_generally each twisted around its own ideal axis to form a-spiral.
- the snare-unit adheres to the outer face of the resonating drumhead across its diameter in order to generate, when the batter head is struck, the vibration of said snares on the resonating head to which they adhere, and to which the movement acquired via the column of air inside the drum shell is transmitted in order to obtain a particular- and known sound effect.
- the snare unit must be:
- A) disconnectable i.e. it must be possible to move it away from the skin to which it essentially adheres until it is released so that none of its parts are in contact with the resonating skin. It must be possible to disconnect the snare unit and, conversely, connect it, easily and quickly: in fact, a musical performance can require, during the short time available between one drumbeat and another, a sudden change in the sound quality of the drum, or temporary non-use of the above- mentioned "particular and known sound effect" of the snare drum, and therefore momentary use of it as a simple drum (to produce only a tom-tom sound);
- snare drums are generally provided with two mechanisms adhering to the face, generally external, of the cylinder constituting the shell; the two mechanisms are variously anchored mechanically to the shell in a diametrically opposed position, and function as antagonists: one exerts traction on the snare unit, by means of an extension, generally consisting of wire, cord, tape or other material, even stiff material, and the other opposes the traction.
- said traction is exerted along the line rigidly resulting between two antagonists positioned at 90° with respect to ⁇ each other: the opposed components of the strainer mechanisms (both in line with the cylinder constituting the shell of the drum, to which they adhere) and the snare unit itself, adhering to the resonating skin which is in a perpendicularly square position with respect to said axis of the shell of the drum.
- the snare unit at one of its ends (the end opposite that of the mechanism which will exert the traction for connection of the snare unit) the snare unit will always tend to be nearer the resonating skin than the other end.
- one end simply and in a fixed manner, passively opposes the traction; the other end actively exerts the traction, as already said, in a direction perpendicular to the surface formed by the set of parallel wires that make up the snare unit: see FIG. 1.
- the snare unit is in the "active" position (i.e. connected, or in contact with the resonating skin), it will not be able to "couple” in a uniform manner, throughout its length, with the surface of the resonating skin to which it adheres.
- the aim of the present invention is to allow the surface formed by the set of paral- IeI wires that make up the snare unit to position near and then adhere to the resonating skin with a perfectly parallel movement.
- the two ends of the snare unit will always be at the same distance from the resonating skin whether in the adherence, release or intermediate position. This makes for a rapid mechanism connection and disconnection action, soft release, reduced number of components and construction simplicity.
- a particular subject of the present invention is a pivoting strainer for snare drum of a drum kit, as better described in the claims which form an integral part of the pre- sent description.
- Fig. 2 mechanism for connection and release in the connection position of the strainer
- Fig. 3 exploded view of the connection and reiease mechanism
- a fixed part is anchored solidly to the shell 18 by means of screws 15, consisting of two elements 1 and 2, and likewise in the antagonist mechanism consisting of the elements 3 and 4, on which an eccentric 5 is hinged.
- a pin 6 At the top of the eccentric 5 is a pin 6 which retains an extension 7, at the end of which the end of the snare unit 14 will be anchored by means of a cord or other
- the traction tension can- be- adjusted: this ⁇ can be performed on the antagonist mechanism, by means of a screw 11 tightened on the head of the extension 9 and acting on the pin 8, as shown in the figures. Alternatively, the adjustment can also be obtained by acting on the traction mechanism with analogous screw means.
- the traction and antagonist mechanisms of the strainer can be connected to the shell 18 indirectly, by means of screws housed in threads provided in the blocks 20 which join and tension the two skins of the drum, without the need to pierce or pass through the shell. Alternatively they can be connected directly to the shell for example by through or non-through screws.
- the two mechanisms will be in preferably diametrically opposed positions of the shell.
- variable geometry strainer with micrometric adjustment for snare drum has the following characteristics:
- the stop point is provided by an eccentric; - its structure does not contain screws, bolts, nuts or springs;
- connection and micrometric adjustment mechanism and the antagonist mechanism are hinged and free to rotate around an axis perpendicular to the direction of the traction ex- erted by them;
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Electrophonic Musical Instruments (AREA)
- Metal Rolling (AREA)
- Auxiliary Devices For Music (AREA)
- Control Of Motors That Do Not Use Commutators (AREA)
Abstract
Strainer for snare drum, with pivoting mechanism able to ensure uniform adherence of the snare unit to the resonating skin throughout its length, which can be applied to the 'shell' of the drum without the need for through holes on the shell of the drum and which can be connected and disconnected by a rapid movement; able to exert, during connection of the snare unit, a traction on the same along the natural axis of the connection element between said snare unit and the strainer.
Description
VARIABLE GEOMETRY STRAINER WITH MICROMETRY ADJUSTMENT FOR SNARE DRUM
Field of the invention
The present invention refers to a variable geometry strainer with micrometric ad- justment for snare drum. State of the art
The snare drum is a-musical percussion instrument consisting of a hollow cylindrical shell (providing-the resonating chamber) with a stretched skin fitted over the two ends forming the top drumhead which generates the sound, i.e. the batter head, and the bottom drumhead which moves by sympathy, i.e. the resonating head.
The peculiarity that distinguishes the snare drum from other types of drum is the presence of a snare unit, i.e. a set of a variable number of parallel wires, generally metal and_generally each twisted around its own ideal axis to form a-spiral. The snare-unit adheres to the outer face of the resonating drumhead across its diameter in order to generate, when the batter head is struck, the vibration of said snares on the resonating head to which they adhere, and to which the movement acquired via the column of air inside the drum shell is transmitted in order to obtain a particular- and known sound effect. The snare unit must be:
A) disconnectable, i.e. it must be possible to move it away from the skin to which it essentially adheres until it is released so that none of its parts are in contact with the resonating skin. It must be possible to disconnect the snare unit and, conversely, connect it, easily and quickly: in fact, a musical performance can require, during the short time available between one drumbeat and another, a sudden change in the sound quality of the drum, or temporary non-use of the above- mentioned "particular and known sound effect" of the snare drum, and therefore momentary use of it as a simple drum (to produce only a tom-tom sound);
B) adjustable, micrometrically, in its longitudinal tension and, consequently, in its coupling pressure during adherence to the resonating skin towards which it is drawn, according to the particular type and tone of sound effect required.
In order to obtain the results described in the points "A" and "B", snare drums are generally provided with two mechanisms adhering to the face, generally external,
of the cylinder constituting the shell; the two mechanisms are variously anchored mechanically to the shell in a diametrically opposed position, and function as antagonists: one exerts traction on the snare unit, by means of an extension, generally consisting of wire, cord, tape or other material, even stiff material, and the other opposes the traction.
Thezsystems that control connection-disconnection of the snare unit, and the fine adjustment of its traction-tension ,_can either form one single part (in which case the diametrically opposed mechanism-will-only have the job of acting as antagonist to the traction exerted by the opposite part), or be split into two parts, again diametrically opposed, one containing the connection-disconnection system and the other the system for micrometric adjustment of the tension. It should be noted that in all the combinations described above, said traction is exerted along the line rigidly resulting between two antagonists positioned at 90° with respect to~each other: the opposed components of the strainer mechanisms (both in line with the cylinder constituting the shell of the drum, to which they adhere) and the snare unit itself, adhering to the resonating skin which is in a perpendicularly square position with respect to said axis of the shell of the drum. Furthermore, in all the combinations described above, at one of its ends (the end opposite that of the mechanism which will exert the traction for connection of the snare unit) the snare unit will always tend to be nearer the resonating skin than the other end. In fact one end, simply and in a fixed manner, passively opposes the traction; the other end actively exerts the traction, as already said, in a direction perpendicular to the surface formed by the set of parallel wires that make up the snare unit: see FIG. 1. In this way, even when the snare unit is in the "active" position (i.e. connected, or in contact with the resonating skin), it will not be able to "couple" in a uniform manner, throughout its length, with the surface of the resonating skin to which it adheres. Summary of the invention The aim of the present invention is to allow the surface formed by the set of paral- IeI wires that make up the snare unit to position near and then adhere to the resonating skin with a perfectly parallel movement. In other words, the two ends of the snare unit will always be at the same distance from the resonating skin whether in the adherence, release or intermediate position.
This makes for a rapid mechanism connection and disconnection action, soft release, reduced number of components and construction simplicity.
A particular subject of the present invention is a pivoting strainer for snare drum of a drum kit, as better described in the claims which form an integral part of the pre- sent description.
Brief description ofithe figures
Further characteristics and advantages of the invention will become clearer in the -light of the detailed description of a preferred butrnot exeiusive embodiment of a rolling mill illustrated by way of non-limiting example with the help of the accom- panying drawings in which:
Fig. 1) prior art; example in section of a drum with application of a traditional strainer showing the limits overcome by the invention proposed;
Fig. 2) mechanism for connection and release in the connection position of the strainer; Fig. 3) exploded view of the connection and reiease mechanism;
Fig. 4) micrometric adjustment mechanism;
Fig. 5) exploded view of the micrometric adjustment mechanism;
Fig. 6) application of the adjustment mechanism to the snare drum;
Fig. 7) application of the release mechanism to the snare drum; Fig. 8) section of a drum with application of the invention in the snare unit traction position;
Fig. 9) section of a drum with application of the invention in the snare unit release position.
Detailed disclosure of a preferred embodiment of the invention The mechanical strainer system that permits implementation of the invention is formed as follows.
A fixed part is anchored solidly to the shell 18 by means of screws 15, consisting of two elements 1 and 2, and likewise in the antagonist mechanism consisting of the elements 3 and 4, on which an eccentric 5 is hinged. At the top of the eccentric 5 is a pin 6 which retains an extension 7, at the end of which the end of the snare unit 14 will be anchored by means of a cord or other
13.
The same will occur in the antagonist mechanism, comprising the pin 8 and the
extension 9.
Following the traction exerted when the strainer 14 is connected, by means of the lever 10, said traction being exerted from only one of the two ends of the strainer, automatically, both the "traction" and "antagonist" part of the mechanism will posi- tion themselves in order to:
- exert the traction along the axe& 12~which are kept perfectly aligned by the bands 13 (or other) for connection to the snare unit 14 throughout the traction movement;
- exert the traction along the axes 12 which are perfectly symmetrical in a specular manner (that of the "active" part and that of the "passive" part of the mechanism) throughout the traction movement;
- exert the traction along axes having a smaller angle of incidence 16 with respect to the axis 17 of the shell 18 constituting the drum.
The traction tension can- be- adjusted: this~can be performed on the antagonist mechanism, by means of a screw 11 tightened on the head of the extension 9 and acting on the pin 8, as shown in the figures. Alternatively, the adjustment can also be obtained by acting on the traction mechanism with analogous screw means. The traction and antagonist mechanisms of the strainer can be connected to the shell 18 indirectly, by means of screws housed in threads provided in the blocks 20 which join and tension the two skins of the drum, without the need to pierce or pass through the shell. Alternatively they can be connected directly to the shell for example by through or non-through screws. The two mechanisms will be in preferably diametrically opposed positions of the shell.
In accordance with the preceding description, the variable geometry strainer with micrometric adjustment for snare drum has the following characteristics:
- it is pivoting and integral with the shell by means of screws which do not pass through the material of the shell;
- its tension axis coincides with that of the bands of the snare unit;
- the stop point is provided by an eccentric; - its structure does not contain screws, bolts, nuts or springs;
- both the connection and micrometric adjustment mechanism and the antagonist mechanism (which can also comprise one of the above two functions) are hinged and free to rotate around an axis perpendicular to the direction of the traction ex-
erted by them;
- it has a reduced number of mechanical components and is therefore better able to avoid undesired resonance and vibration;
- the traction and fixed parts have some components in common which are inter- changeable.
The. present invention has been described fomillustrative non-limiting purposes, according to a preferred embodiment, but it is understood that variations and/or modifications can be made by-persons skilled in the art without departing fronrthe protective scope thereof, as defined by the attached claims.
Claims
1. Pivoting strainer for snare drum of a musical drum kit, said snare drum comprising a shell, two skins tensioned at the two ends of the shell, and at least one snare unit which can adhere to or be detached from one of the two tensioned skins, characterised in that it comprises means for ensuring that said snare unit always moves parallel to said skin during movement towards~or_away from said skin.
2. Pivoting strainer as claimed in claim 1- characterised in that said means for determining a movement of said snare unit act on the two ends of the snare unit so that said two ends are always at the same distance from the resonating skin, in both the adherence, release and intermediate positions.
3. Pivoting strainer as claimed in claim 1 or 2, characterised in that said means for determining a movement of said snare unit comprise a traction mechanism at one of said-ends, and an antagonist mechanism at-the other end, such~as~to exert a traction along axes (12) symmetrical in a specular manner throughout the traction movement of the snare unit (14).
4. Pivoting strainer as claimed in claim 3, characterised in that said traction and antagonist mechanisms are suitable for exerting said traction along said axes (12) whiclrafe kept aligned by means for connection (13) to the snare unit 14 through- out the traction movement.
5. Pivoting strainer as claimed in claim 3, characterised in that said traction mechanism comprises first elements (1 , 2) fixed to said shell (18), on which an eccentric (5) is hinged, at the top of which a pin (6) is provided which retains an extension (7), at the end of which one end of the snare unit (14) is anchored; it fur- thermore comprises a lever (10) hinged on said eccentric (5) to determine said traction.
6. Pivoting strainer as claimed in claim 3, characterised in that said antagonist mechanism comprises second elements (3, 4) fixed to said shell (18) on which there is a pin (8) and an extension (9) at the end of which another end of the snare unit (14) is anchored.
7. Pivoting strainer as claimed in claim 3, characterised in that said traction can be adjusted by adjustment means (11) applied on said traction and/or antagonist mechanisms.
8. Pivoting strainer as claimed in claim 5 or 6, characterised in that said traction and antagonist mechanisms are directly connected to blocks (20) which join and tension the two skins of the drum.
9. Pivoting strainer as claimed in claim 3, characterised in that said traction mechanism and antagonist mechanism are connected to the shell (18) indirectly, by block connections (20) whichjoin and tension said two skins of the drum.
10. Pivoting strainer as claimed in claim 3, characterised in that said traction and antagonist mechanism are directly connected to the shell (18).
11. Pivoting strainer as claimed in claim 9 or 10, characterised in that said trac- tion and antagonist mechanism are located in diametrically opposed positions of the shell.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ITCA2007A000011 | 2007-05-30 | ||
IT000011A ITCA20070011A1 (en) | 2007-05-30 | 2007-05-30 | VARIABLE GEOMETRY TENSIONER WITH MICROMETRIC ADJUSTMENT FOR ROLLING MUSICAL DRUM. |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2008146146A2 true WO2008146146A2 (en) | 2008-12-04 |
WO2008146146A3 WO2008146146A3 (en) | 2009-01-29 |
Family
ID=39944440
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/IB2008/001368 WO2008146146A2 (en) | 2007-05-30 | 2008-05-29 | Variable geometry strainer with micrometric adjustment for snare drum |
Country Status (2)
Country | Link |
---|---|
IT (1) | ITCA20070011A1 (en) |
WO (1) | WO2008146146A2 (en) |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB841771A (en) * | 1957-03-08 | 1960-07-20 | John E Dallas & Sons Ltd | Improvements in or relating to drums |
-
2007
- 2007-05-30 IT IT000011A patent/ITCA20070011A1/en unknown
-
2008
- 2008-05-29 WO PCT/IB2008/001368 patent/WO2008146146A2/en active Application Filing
Also Published As
Publication number | Publication date |
---|---|
WO2008146146A3 (en) | 2009-01-29 |
ITCA20070011A1 (en) | 2008-11-30 |
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