EP0257502A2 - Métronome - Google Patents

Métronome Download PDF

Info

Publication number
EP0257502A2
EP0257502A2 EP87111874A EP87111874A EP0257502A2 EP 0257502 A2 EP0257502 A2 EP 0257502A2 EP 87111874 A EP87111874 A EP 87111874A EP 87111874 A EP87111874 A EP 87111874A EP 0257502 A2 EP0257502 A2 EP 0257502A2
Authority
EP
European Patent Office
Prior art keywords
climbing wheel
bell
roller
bell roller
shaft
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.)
Granted
Application number
EP87111874A
Other languages
German (de)
English (en)
Other versions
EP0257502A3 (en
EP0257502B1 (fr
Inventor
Fritz Härle
Erhard Schmid
Georg Vochezer
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.)
Rudolf Wittner GmbH and Co KG
Original Assignee
Rudolf Wittner GmbH and Co KG
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 Rudolf Wittner GmbH and Co KG filed Critical Rudolf Wittner GmbH and Co KG
Publication of EP0257502A2 publication Critical patent/EP0257502A2/fr
Publication of EP0257502A3 publication Critical patent/EP0257502A3/de
Application granted granted Critical
Publication of EP0257502B1 publication Critical patent/EP0257502B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04F—TIME-INTERVAL MEASURING
    • G04F5/00—Apparatus for producing preselected time intervals for use as timing standards
    • G04F5/02—Metronomes

Definitions

  • the invention relates to a metronome with a pendulum which is mounted on a pendulum shaft in a rotationally fixed manner, with a climbing wheel shaft driven by a wind-up spring mechanism, with a climbing wheel which is fixed in rotation on the climbing wheel shaft and which drives the pendulum via an armature which is mounted on the pendulum shaft in a rotationally fixed manner, with one of a bell hammer struck bell and with a bell roller rotatably mounted on the riser shaft, normally non-rotatably connected to the riser, for actuating the bell hammer.
  • the pendulum periodically makes audible beats.
  • the bell is only fired by the bell hammer on the first beat of the respective measure (e.g. every third or fourth beat) sounded so that the user of the metronome can clearly recognize the first beat of the time signature in question. It is important to synchronize the sound of the bell with the beat in question.
  • the climbing wheel and a bell roller consisting of four individual gears are pressed together in a torque-proof manner by a screw nut. If the pitch wheel and bell roller are to be adjusted relative to each other in order to synchronize the clock pulse with the bell stroke, the screw nut must first be loosened and tightened again after the setting has been made. The relative adjustment between the climbing wheel and bell roller is carried out continuously by trained personnel.
  • the metronome shown in Fig. 1 has a pyramid-shaped housing 1, z. B. made of wood.
  • a frame 2 is fixed, which is used to store the individual parts of the metronome.
  • a climbing wheel 4 which drives a pendulum 8 consisting of pendulum rod 6 and pendulum mass 7 in a known manner via an armature 5.
  • Pendulum rod 6 and armature 5 are non-rotatably seated on a pendulum shaft 9 which is also rotatably mounted in frame 2.
  • Rising gear shaft 3 is driven in a manner known per se by a wind-up mechanism or spring mechanism 11, the shaft of which is provided with reference number 12 in FIG. 1 .
  • bell roller 13 On the climbing wheel shaft 3 there is also a bell roller 13 which is connected to the climbing wheel 4 in a rotationally fixed manner and from which cams 14 project at certain angular intervals.
  • the cams cooperate in a known manner with a bell hammer 15 pivotally mounted in the frame 2 such that whenever a cam 14 passes the free end of the bell hammer, the hammer head provided at the other end strikes a bell 16 mounted on the frame 2.
  • Bell hammer 15 and bell 16 are (in a known and therefore not shown manner) displaceable in the axial direction of the riser shaft 3, so that, depending on the desired cycle type, the bell hammer 15 is actuated by a certain cam ring of the bell roller 13.
  • FIGS. 2 and 3 A design of the climbing wheel 4 and the bell roller 13 serving this purpose is shown in FIGS. 2 and 3.
  • the climbing wheel 4 which is preferably made of plastic, sits on the rotatable in the Frame 2 mounted rising wheel shaft 3.
  • projections 17 protrude in the form of teeth at equal angular intervals in the axial direction.
  • axially projecting projections 18 are also provided in the form of a toothing at corresponding angular intervals, which in the operating state of the metronome shown in FIG Ensure rotational connection of the climbing wheel with the bell roller 13.
  • the projections 17 of the climbing wheel 4 opposite, on the shaft 3 still rotatable, but axially immovable, a circular locking disc 19, the outer diameter of which is chosen so that this disc is full in its outer circumference the bell roller 13 formed, also circular reveal fits into it and the roller 13 provides support and axial guidance.
  • the locking disk 19, which is also made of plastic, for example, is fastened by claws 21 which are formed in one piece with the disk 19 and which engage resiliently in a corresponding notch of the climbing wheel shaft 3 and thus provide axial immovability with simultaneous rotatability of the locking disk 19 relative to the shaft 3 guarantee.
  • the locking disc 19 is slightly elastic in itself.
  • the bell roller 13 is fixed relative to the locking disk 19 and the climbing wheel 4 such that the toothings formed by the projections 17, 18 on the climbing wheel 4 and bell roller 13 are in mutual engagement and thus the climbing wheel 4 and bell roller 13 are positively connected to one another.
  • the bell roller can be adjusted relative to the climbing wheel 4 for the purpose of synchronizing the stroke with the bell beat. Subsequently, the locking connection mentioned is closed again by rotating the locking disk 19 relative to the bell roller 13, as a result of which the climbing wheel 4 and the bell roller 13 are rotatably connected to one another again in a new relative position.
  • the free end face of the locking disk 19 has recesses 27 into which a suitable tool, for example a type of open-ended wrench, can be used, with the aid of which the locking disk 19 can then be rotated relative to the bell roller 13 in order to remove the locking tongues 25 to transfer the flat areas 23 into the deeper areas 24 of the locking recesses 22, which in turn then allow the required axial displacement of the bell roller 13 relative to the climbing wheel 4.
  • a suitable tool for example a type of open-ended wrench
  • four locking recesses 22 and four locking tongues 25 are provided at corresponding angular intervals of 90 °. Basically, the arrangement of a single locking recess 22 with an associated, single locking tongue 25 is sufficient.
  • the climbing wheel 4 is axially immovable on the climbing wheel shaft 3, while the bell roller 13 is axially displaceable relative to the climbing wheel 4.
  • a reverse configuration in which the bell roller 13 is thus arranged fixedly on the climbing wheel shaft 3 and the climbing wheel can be axially displaced, is also possible.
  • one of the projections 17, which is provided with the reference symbol 28 in FIG. 2 is specially designed or marked.
  • One of the projections 18 is specially designed or marked. This is indicated in FIG. 2 by reference number 29.
  • the climbing wheel 4 and the bell roller 13 are connected to one another in such a way that the two projections 28, 29 lie opposite one another, so that a defined starting position for a possible later adjustment is predetermined.
  • the locking or holding means between the climbing wheel 4 and the bell roller 13 are designed in a different way.
  • a disc 31 sits axially immovably on the climbing wheel shaft 3, on which one end of a helical compression spring 32 arranged in the interior of the bell roller 13 is supported.
  • the other end of the spring 32 engages an annular web 33 in the interior of the roller 13.
  • the helical spring 32 tries to hold the projections 17, 18 on the climbing wheel 4 and on the bell roller 13 in mutual, positive engagement.
  • the bell roller 13 are pushed axially against the action of the spring 32 by the climbing wheel 4. After the required angle adjustment between the climbing wheel 4 and the bell roller 13 has been carried out, the spring 32 brings the two parts back into mutual, positive engagement.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Transmission Devices (AREA)
  • Gears, Cams (AREA)
  • Handcart (AREA)
  • Mechanical Pencils And Projecting And Retracting Systems Therefor, And Multi-System Writing Instruments (AREA)
  • Steroid Compounds (AREA)
  • Compounds Of Unknown Constitution (AREA)
  • Toys (AREA)
  • Mechanical Operated Clutches (AREA)
EP87111874A 1986-08-22 1987-08-17 Métronome Expired - Lifetime EP0257502B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3628515A DE3628515C2 (de) 1986-08-22 1986-08-22 Metronom
DE3628515 1986-08-22

Publications (3)

Publication Number Publication Date
EP0257502A2 true EP0257502A2 (fr) 1988-03-02
EP0257502A3 EP0257502A3 (en) 1989-04-05
EP0257502B1 EP0257502B1 (fr) 1991-04-10

Family

ID=6307937

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87111874A Expired - Lifetime EP0257502B1 (fr) 1986-08-22 1987-08-17 Métronome

Country Status (10)

Country Link
US (1) US4759253A (fr)
EP (1) EP0257502B1 (fr)
JP (1) JPH0769441B2 (fr)
KR (1) KR950003197B1 (fr)
CN (1) CN1014002B (fr)
CA (1) CA1285146C (fr)
DE (1) DE3628515C2 (fr)
ES (1) ES2023156B3 (fr)
HK (1) HK62391A (fr)
SG (1) SG44891G (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106292254A (zh) * 2016-08-30 2017-01-04 怀化市新谱乐器有限公司 一种快速装卸式机械节拍器

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5167559A (en) * 1991-05-14 1992-12-01 Power Fardy Stephen N Mechanized brim/visor display device
US5515764A (en) * 1994-12-30 1996-05-14 Rosen; Daniel Harmonic metronome
US6341518B1 (en) * 1999-12-10 2002-01-29 U.E Systems, Inc. Ultrasonic standard
JP4761677B2 (ja) * 2001-09-13 2011-08-31 セイコープレシジョン株式会社 メトロノーム
CN100455255C (zh) 2002-08-09 2009-01-28 因特尔丘尔有限公司 用于调节生物节律性活动的通用节拍器
USD751424S1 (en) * 2013-08-09 2016-03-15 Wittner Gmbh & Co. Kg Metronome
US8987575B1 (en) * 2013-08-30 2015-03-24 William Christian Rossel Automated tihai clock
CN104751834A (zh) * 2015-01-18 2015-07-01 深圳市蔚科电子科技开发有限公司 一种机械节拍器

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH279652A (fr) * 1949-12-17 1951-12-15 Paillard Sa Métronome.
DE1810596A1 (de) * 1968-11-23 1970-06-11 Wittner Rudolf Getriebevorrichtung an Metronomen

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US738093A (en) * 1902-04-05 1903-09-01 Horatio R Palmer Metronome.
US734032A (en) * 1902-07-30 1903-07-21 Ernest K Adams Electric metronome.
US3590524A (en) * 1969-10-27 1971-07-06 Mattel Inc Toy vehicle accelerator

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH279652A (fr) * 1949-12-17 1951-12-15 Paillard Sa Métronome.
DE1810596A1 (de) * 1968-11-23 1970-06-11 Wittner Rudolf Getriebevorrichtung an Metronomen

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106292254A (zh) * 2016-08-30 2017-01-04 怀化市新谱乐器有限公司 一种快速装卸式机械节拍器
CN106292254B (zh) * 2016-08-30 2018-06-08 怀化市新谱乐器有限公司 一种快速装卸式机械节拍器

Also Published As

Publication number Publication date
SG44891G (en) 1991-08-23
CA1285146C (fr) 1991-06-25
CN87105704A (zh) 1988-03-09
US4759253A (en) 1988-07-26
EP0257502A3 (en) 1989-04-05
KR950003197B1 (ko) 1995-04-04
EP0257502B1 (fr) 1991-04-10
DE3628515A1 (de) 1988-03-03
CN1014002B (zh) 1991-09-18
HK62391A (en) 1991-08-16
DE3628515C2 (de) 1993-12-23
ES2023156B3 (es) 1992-01-01
KR880003227A (ko) 1988-05-14
JPH0769441B2 (ja) 1995-07-31
JPS6353487A (ja) 1988-03-07

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