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EP0817162A1 - Klöppelwerk für Glocken - Google Patents

Klöppelwerk für Glocken Download PDF

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Publication number
EP0817162A1
EP0817162A1 EP97870094A EP97870094A EP0817162A1 EP 0817162 A1 EP0817162 A1 EP 0817162A1 EP 97870094 A EP97870094 A EP 97870094A EP 97870094 A EP97870094 A EP 97870094A EP 0817162 A1 EP0817162 A1 EP 0817162A1
Authority
EP
European Patent Office
Prior art keywords
force
arm
pulse
period
bell
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP97870094A
Other languages
English (en)
French (fr)
Inventor
C. Eugene
F. Gueuning
P. Dupuis
J.P. Cormann
G. Tabutin
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Universite Catholique de Louvain UCL
Original Assignee
Universite Catholique de Louvain UCL
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Universite Catholique de Louvain UCL filed Critical Universite Catholique de Louvain UCL
Publication of EP0817162A1 publication Critical patent/EP0817162A1/de
Withdrawn legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K1/00—Devices in which sound is produced by striking a resonating body, e.g. bells, chimes or gongs
    • G10K1/28—Bells for towers or the like
    • G10K1/30—Details or accessories
    • G10K1/32—Sounding members; Clappers or other strikers

Definitions

  • the invention relates to a chime hammer comprising first means arranged to apply a first force to a first valve fixed on a first arm which is mounted on a first axis of pivoting, said first arm being arranged to apply, under control of the first force, a second force with a second arm mounted on a second pivot axis, which second arm is provided with a leaf arranged to strike a bell of the chime, said hammer comprising also second means arranged to apply a third force a second valve fixed on said second arm so as to withdraw the beating the bell.
  • Such a hammer is known from German patent n ° 197060.
  • the hammer is placed inside the bell but it could also be placed outside.
  • the leaf and the first and second arms are free to move around their pivot axis.
  • the first means which according to the known hammer are formed by an electromagnet, apply the first force on the first valve, this one is put in movement and rotates the first arm around its first axis of pivoting.
  • the movement of the first arm will in turn cause the application of the second force by the second arm, which will propel the leaf, mounted on the second arm, towards the bell.
  • the clapper on the bell will thus produce the sound of the chime.
  • the known hammer comprises also second means, here also formed by an electromagnet, which recall the wing by exerting a third force on it last, thus ensuring a back and forth movement of the leaf.
  • a disadvantage of known hammers is that it is the movement of the leaf itself which determines the period during which the first and third force are applied and so the energy applied to beating, i.e. both the amplitude and the duration of the pulse with which the leaf strikes on the bell. This has the consequence of limit the dynamics of sound power and the repetition rate of hit.
  • the object of the invention is to produce a chime hammer having a dynamic sound power and a repetition rate of hits higher.
  • a chime hammer is characterized in that it comprises a control unit connected to said first and second means, said control unit being arranged to produce a first respectively a second pulse and the to transmit to the first respectively second means, said first respectively second pulse determining the power of the first respectively third force.
  • the presence of the unity of command produces pulses that determine the power of the first and third force applied to the leaf. So it's no longer the movement of the wing which determines the force, but the unity of ordered.
  • the application of the third force on the second valve will cause the leaf to be removed from the bell at the desired time.
  • a first preferred embodiment of a hammer for chimes according to the invention is characterized in that said unit of control is arranged to produce said first respectively second impulse, during a first respectively a second period of time, said first and second periods not overlapping not.
  • the first impulse thus conditions the striking power since applied to the first means while the second impulse, applied with the second means, ensures the rapid return of the leaf. Since the two periods of time do not overlap, the leaf can reach the bell in free race between the two periods.
  • control unit is arranged for producing said second pulse after having allowed a period to elapse predetermined time after the production of the first pulse. The time left to the free stroke of the leaf is thus controlled.
  • a second preferred embodiment of a hammer for chime according to the invention is characterized in that it comprises a control unit connected to the first and second means, said unit being arranged to produce a third, a fourth and a fifth pulse, said third respectively fourth pulse being intended to control said first means during a third respectively a fourth period of time in order to determine the power of the first force, said fifth pulse being intended to control said second means during a fifth period of time to determine the power of the third force, said third pulse being a pulse whose width pulse is modulated during the third period.
  • the wing is thus propelled towards the bell and then, during the fourth period, the leaf is kept very close to the bell by the pulse modulation. Withdrawal being made during the fifth period. This allows you to quickly bring the leaf back and cancel the twists of the leaf on the bell, which increases the stroke rate.
  • a third preferred embodiment of a hammer for chimes according to the invention is characterized in that the width pulse the third pulse is modulated with a cycle ratio 50%. This reduces energy consumption while exercising the first force.
  • first and second pivot axis form the same axis, the first and second valve being mounted independently of each other on said same axis. This allows simplify the construction of the hammer.
  • the chime hammer according to the invention comprises a first electromagnet 1, connected to a unit of control 10.
  • the control unit is arranged to supply the power electrical and control signals to the first 1 as well as to a second 6 electromagnet.
  • the first electromagnet 1 forms in the example described the first means arranged to apply a first force.
  • other embodiments for these first means are possible such as a pneumatic or hydraulic piston and cylinder, or a motor driving a cam.
  • the description which follows will however be limited to the example of the electromagnet.
  • a first arm 3 is mounted on a first pivot axis 4, so as to be able to pivot relative to this axis, which extends perpendicularly to the plane of the drawing.
  • a first valve 2 is mounted on the first arm 3 so that the first electromagnet 1 can exert a first force F 1 on this first valve 2.
  • a second arm 7 is also mounted so as to be able to pivot on this first axis 4.
  • the second arm is mounted independently of the first on the axis 4, so that each arm can pivot on the axis independently of one of the other. If necessary, the second arm can be mounted on a second pivot axis.
  • a second valve 11 is mounted on the second arm 7 so that a second electromagnet 6 can exert a third force F 3 on this second valve 11.
  • the second electromagnet forms the second means for applying a force.
  • These second means can also be formed by other embodiments, as in the case of the first means.
  • a wing 9 or a striking mass is carried by the second arm 7 so that the second valve 11 and the leaf are located on either side of the arm relative to the axis 4.
  • a first screw of adjustment 5 limits the path of the first arm 3 while a second screw setting 8 limits the path of the second arm 7.
  • One side of the first arm 3 abuts against the first adjustment screw 5, while the second adjustment screw setting 8 mounted on the second arm 7, abuts on the opposite side of that first arm.
  • the leaf 9 is arranged to abut against the external face of a bell 12 resumed in dotted line since it is not part of the hammer as such.
  • the hammer can also be designed to be mounted at inside a bell.
  • the chime hammer according to the present invention is arranged to operate according to two control diagrams which will described in detail below.
  • the control diagrams stand out essentially by controlling the electromagnets.
  • FIG. 3 illustrates the control pulses produced by the control unit 10 when the hammer operates according to the first control diagram.
  • This first control scheme consists in alternately managing the time period d 1 respectively d 2 of a first P 1 respectively of a second P 2 pulse, intended to control the first 1 respectively the second 6 electromagnet. Between the pulses P 1 and P 2 a period of time d 3 predetermined as a function of the free travel of the leaf to the bell.
  • the second arm 7 Under the effect of this second force F 2 the second arm 7 will also pivot around the axis 4 driving thus the leaf 9 to send it to the bell (striking mode).
  • the pivoting of the second arm 7 also causes the second valve 11 to move away from the second electromagnet, which is not supplied during the period d 1 .
  • the duration d 1 of the first pulse P 1 conditions the striking power of the leaf on the bell, since it is under the influence of the first pulse P 1 that the leaf is launched towards the bell.
  • the impact power can thus be modified by varying the duration of the first pulse P 1 .
  • the variation of the duration of the first pulse P 1 is obtained for example by a control signal 14 supplied to the control unit 10 or under the control of a management program executed by the control unit.
  • the second pulse P 2 is applied during period d 2 to the second electromagnet 6.
  • the application of this second pulse will cause the application of a third force F 3 on the second valve 11 which will be recalled to the second electromagnet. Since the third force is applied under control of the second impulse, it is the latter which determines the duration of the application of the third force and its power. Just like the duration of the first pulse, that of the second can also be varied. Since the first electromagnet 1 is no longer supplied, the first arm can freely rotate on the axis 4 and will not hinder the movement of the second arm.
  • the duration of the second pulse P 2 must be sufficiently long. Too short a duration could amplify the rebound of the leaf on the first adjusting screw.
  • the duration d 2 must allow the leaf to return to rest mode otherwise it could rebound more and even cause a second strike. After another duration d 4 adjustable according to the melody to be played, the typing cycle d 1 , d 3 , d 2 can start again.
  • Figure 4 (a, b and c) illustrates the control pulses produced by the control unit 10 when the hammer operates according to the second control diagram.
  • This solution is carried out, according to the invention, by supplying the first electromagnet 1 at a reduced power which is obtained by practical with control by modulation of the pulse width, called PWM (Pulse-Width-Modulation), where the time period of the pulse is split into regular feeding and non-feeding intervals.
  • PWM Pulse-Width-Modulation
  • a sixth pulse P 6 is applied to the first electromagnet 1 to exert a force F ' 1 on the first valve 2.
  • This period d 6-1 is followed by a period d 6-2 during which a seventh pulse P 7 of PWM type is applied to the first electromagnet 1.
  • a force F " 1 is applied to the first valve 2.
  • L ' application of the forces F ' 1 + F “ 1 will make it possible to bring the leaf 9 towards the bell without making a first strike.
  • the duration d 6-1 represents the duration of engagement of the first electromagnet 1.
  • the duration d 6-2 represents that during which the leaf is in the vicinity of the bell.
  • the second electromagnet 6 is not activated.
  • the PWM pulse is preferably modulated with a cycle ratio of 50% which is easy to generate and limits the energy consumption of the electromagnets.
  • the second electromagnet 6 is activated by a fifth pulse P 5 during a fifth period d5, during which the first electromagnet is not activated. This has the consequence that the leaf deviates from its standby position near the bell. Under the effect of the fifth pulse a force F 3 will be produced on the second valve 11 thus recalling the leaf towards the second electromagnet 6 (figure 5-B).
  • a third pulse P 3 is then produced during a third period d 3 which immediately follows period d 5 .
  • the third pulse is supplied to the first electromagnet 1 (figure 5-C) and will therefore cause the application of a force F "' 1 on the first valve 2 thus launching the leaf against the bell.
  • the second electromagnet 6 is not supplied during this third period d 3 .
  • the third period d3 is immediately followed by a fourth period d4 during which a fourth pulse P 4 of PWM type is applied to the first electromagnet 1.
  • the second electromagnet is not supplied during this fourth period.
  • a force F "" 1 remains applied to the first valve so as to keep the valve closed. This force does not, however, strike the bell and therefore keeps the leaf in the waiting position.
  • the fourth period characterizes the break between shots.
  • the duration d 5 + d 3 conditions the striking power, since it is the fifth and the third impulse which determine the power with which the leaf is first moved back and then sent against the bell. In practice, it suffices to modulate d 5 and to keep d 3 constant.
  • the duration d 4 which is clearly greater than d 3 + d 5 , conditions the rate of repetition since it characterizes the pause.
  • the duration of periods d 3 to d 6 can be varied under the control of the control unit.
  • Tests with this second control scheme have achieved a sound power dynamic range of 21 dBA and a repetition rate of 7 strokes per second (versus 3 strokes for the known hammer) for a strike of any intensity. More than 10 shots per second were obtained for a low intensity strike, which largely meets the needs as mentioned in the musical literature.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Percussion Or Vibration Massage (AREA)
EP97870094A 1996-06-24 1997-06-24 Klöppelwerk für Glocken Withdrawn EP0817162A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BE9600578A BE1010385A5 (fr) 1996-06-24 1996-06-24 Marteau pour carillon.
BE9600578 1996-06-24

Publications (1)

Publication Number Publication Date
EP0817162A1 true EP0817162A1 (de) 1998-01-07

Family

ID=3889837

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97870094A Withdrawn EP0817162A1 (de) 1996-06-24 1997-06-24 Klöppelwerk für Glocken

Country Status (2)

Country Link
EP (1) EP0817162A1 (de)
BE (1) BE1010385A5 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010010091A1 (de) * 2008-07-24 2010-01-28 Klaus Wolter Kontrollieren eines anschlagmittels für eine glocke

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE197060C (de) * 1900-01-01
DE66259C (de) * 1900-01-01 J- W. AverDIECK in Büsbach bei Stolberg, Rheinland Selbsttätige Ankerumsteuerung- für elektromagnetische Klingelwerke mit drei Spulen
DE77825C (de) * 1900-01-01 J. H. WEST, Friedenau b. Berlin, Handjerystr. 58 Elektrische Glocke
US2271084A (en) * 1937-09-22 1942-01-27 Lasowsky Louis Bell ringing mechanism

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE197060C (de) * 1900-01-01
DE66259C (de) * 1900-01-01 J- W. AverDIECK in Büsbach bei Stolberg, Rheinland Selbsttätige Ankerumsteuerung- für elektromagnetische Klingelwerke mit drei Spulen
DE77825C (de) * 1900-01-01 J. H. WEST, Friedenau b. Berlin, Handjerystr. 58 Elektrische Glocke
US2271084A (en) * 1937-09-22 1942-01-27 Lasowsky Louis Bell ringing mechanism

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010010091A1 (de) * 2008-07-24 2010-01-28 Klaus Wolter Kontrollieren eines anschlagmittels für eine glocke
US20110148577A1 (en) * 2008-07-24 2011-06-23 Klaus Wolter Controlling a striking means for a bell

Also Published As

Publication number Publication date
BE1010385A5 (fr) 1998-07-07

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