US3531047A - Reset device for counters - Google Patents

Reset device for counters Download PDF

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Publication number
US3531047A
US3531047A US740171A US3531047DA US3531047A US 3531047 A US3531047 A US 3531047A US 740171 A US740171 A US 740171A US 3531047D A US3531047D A US 3531047DA US 3531047 A US3531047 A US 3531047A
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US
United States
Prior art keywords
reset
slide
bridge
counter wheels
counter
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.)
Expired - Lifetime
Application number
US740171A
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English (en)
Inventor
Horst Pfeiffer
Kreis Tuttlingen
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.)
J Hengstler KG
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J Hengstler 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 J Hengstler KG filed Critical J Hengstler KG
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Publication of US3531047A publication Critical patent/US3531047A/en
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Expired - Lifetime legal-status Critical Current

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    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06M—COUNTING MECHANISMS; COUNTING OF OBJECTS NOT OTHERWISE PROVIDED FOR
    • G06M1/00—Design features of general application
    • G06M1/28—Design features of general application for zeroising or setting to a particular value
    • G06M1/30—Design features of general application for zeroising or setting to a particular value using heart-shaped or similar cams; using levers
    • G06M1/303—Design features of general application for zeroising or setting to a particular value using heart-shaped or similar cams; using levers with drums

Definitions

  • a reset device for counter wheels comprises a longitudinally movable reset-slide control having means for moving pinions which drive the counter wheels.
  • the pinions are moved laterally by a pivotable lever out of engagement with the counter wheels before the counter Wheels are turned to reset position,
  • the counter wheels are turned by action of reset fingers on heart cams fixed with respect to the counter wheels.
  • the pinions are carried on a pinion bridge which is retracted by the lever actuated by a fixed pin on the reset-slide.
  • the reset fingers are heldin engagement with the heart cams by a spring loaded pawl.
  • the pawl engages a reset bridge carrying the reset fingers.
  • the present invention relates to a reset device for counters with reset-slide control.
  • a plurality of pinions which drive digital counter wheels are carried on a pivotable pinion bridge.
  • the pinion bridge and pinions are moved laterally by means of a pivotable lever actuated by a fixed pin carried by a longitudinally movable resetslide advanced in one direction.
  • the lever has an aperture with curved camming edges which engage a shaft carrying the pinions.
  • the pinions are moved safely away from the counter wheels during the initial movement of the resetslide.
  • the pinion bridge moves with the pinions.
  • a spring loaded reset bridge carrying reset fingers is engaged by a projection on the reset-slide.
  • the reset bridge turns on a fixed pin or shaft which also supports the pinion bridge.
  • the reset fingers engage heart cams fixed with respect to the counter wheels respectively on a common shaft.
  • the heart cams with their associated counter wheels are turned to zero or reset position.
  • the reset bridge and reset fingers are locked in position by a spring loaded pawl so Patented Sept. 29, 1970 that all the counter wheels are held stationary.
  • the reset-slide When the reset-slide is moved in opposite direction, the reset-slide first turns the pivotable lever which turns the pinion bridge and restores the pinions to engagement with the counter wheels which are being held in the reset zero position by the reset fingers. After the pinions are safely engaged with the counter wheels, another pin on the retracting reset-slide moves the pawl to release the spring loaded reset bridge so that the reset fingers disengage the cams and release the counter wheels.
  • FIG. 1 is a sectional view partially diagrammatic in form showing a digital counter device in initial unset position of the counter wheels, with reset-slide fully retracted.
  • FIG. 2 is a sectional view similar to FIG. 1, showing the device at a stage of operation where the reset-slide operated by a push button is fully advanced and counter wheels are reset.
  • FIG. 3 is a sectional view similar to FIGS. l and 2, showing the reset-slide being retracted, with pinions again engaging the counter wheels, but with reset fingers holding the counter wheels in reset position.
  • FIG. 4 is an oblique view of the pivotable lever which actuates the pinion bridge.
  • the device comprises a frame plate 30 having mutually perpendicularly disposed base plate 32 and top plate 34.
  • a sleeve 1 In the top plate is secured a sleeve 1.
  • a push button 1 moves axially in sleeve 1.
  • the pushbutton is secured to the top of a longitudinally slidable reset-lever 2.
  • the reset-slide has a foot 2 provided with a hole through which extends a shaft 3 secured in upright position to base plate 32.
  • a coil spring 3 on shaft 3 extends between the base plate and foot 2 and urges the reset-slide upwardly to the position shown in FIG. 1.
  • a rod 21 extends transversely through a slot 2c in resetslide 2 and is carried by frame plate 30.
  • the rod or shaft 21 carries rotatable counter wheels 7 of which only one is shown in the drawings.
  • a heart cam 11 is mounted on shaft 21 and is fixed with respect to counter wheel 7. Only a single cam is shown but it will be understood that there is one heart cam associated with each counter wheel 7.
  • Reset-slide 2 carries a first fixed pin 17 which is engaged in a slot 4 of a pivotable lever 4 carried by shaft 21.
  • a second fixed pin 2b is mounted on the reset-slide below pin 17.
  • At the bottom end of a shoulder of reset-slide 2 is a knob-like projection 2a.
  • Pivotable lever 4 has a hole or slot 4 punched out near its bottom end. This hole has curved camming edges shown most clearly in FIG. 4.
  • Shaft 19 which is supported by a pinion bridge 5 extends through hole 4' in lever 4. Shaft 19 carries the pinions 6 only one of which is shown in the drawings. Only a single tooth 6' of pinion 6 is shown engaged with one of the notches between teeth of counter wheel 7, in FIGS. 1 and 3.
  • Pinion bridge 5 is pivoted clockwise as seen in FIGS. 1 and 2 when lever 4 is turned clockwise by pin 17 which is engaged in slot 4".
  • Pinion bridge 5 is rotatably supported by a shaft 23 carried by frame plate 30 and extending through a slot 2d in the reset-slide 2.
  • Shaft 23 also carries a reset bridge 8,
  • This reset bridge has a finger 8' disposed for engagement by projection 2a of the reset-slide.
  • the reset bridge carries a plurality of reset fingers 9, one for each cam and reset wheel. One such reset finger is shown in the drawings.
  • a pin 13 is set in one side of reset bridge 8 which is disposed in a retracted position and held by spring 10 shown in FIG. l. The spring is anchored on a pin secured to frame plate 30.
  • a pawl 15 is pivotally supported by a shaft 25 which supports a plurality of like pawls.
  • the shaft 25 extends through plate 30.
  • the pawl is biased downward by a coil spring 16 and rests on the reset bridge as shown in FIG. 1.
  • the pawl has a shoulder 14 normally disposed out of engagement with pin 13.
  • push button 1 is depressed axially from its position in FIG. 1. This lowers the reset-slide 2 which causes the lever 4 to turn clockwise as viewed in FIG. 1 to the position of FIG. 2.
  • the lever is guided by pin 17 on the moving reset-slide.
  • shaft 19 guided by the camming edge of hole 4 in lever 4 turns downwardly.
  • the pinion bridge 5 turns clockwise and the pinions 6 are all moved well clear of the counter wheels 7.
  • the reset-slide continues its downward movement until projection 2a engages linger 8 of the reset bridge and turns this clockwise along with the reset fingers 9.
  • the reset fingers engage the heart cams 11 and turn them all until the points of the fingers engage in the notches 12 of the cams.
  • the counter wheels turn with the cams and assume the predetermined reset or zero position.
  • a reset device for digital counter wheels comprising a support; a push button operated longitudinally movable reset-slide carried by said support; a rst shaft mounted on said support and carrying at least one rotatable counter wheel; a cam fixed with respect to the wheel to rotate therewith; a lever pivotally mounted on said shaft and movable by said reset-slide; a second shaft carried by said support and rotatably supporting both a pinion bridge and a reset bridge; a third shaft carried by said pinion bridge; at least one pinion rotatably carried by the third shaft and engageable with said counter Wheel for driving the same, said third shaft being engaged with said lever for alternately disengaging said pinion from said counter wheel and for engaging the pinion with the counter wheel; and at least one reset finger carried by said reset bridge and normally held out of engagement with said cam -by a spring engaged with said reset bridge, whereby longitudinal movement of said reset-slide by said push button in one direction turns said lever and disengages said pinion from the counter wheel, and where
  • a reset device as defined in claim 2 further comprising means on the reset-slide to disengage the pawl from the reset -bridge while the reset-slide retracts further to its initial position, so that the reset finger disengages from said cam only after the pinion is reengaged with the counter wheel.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Transmission Devices (AREA)
  • Mechanical Operated Clutches (AREA)
  • Emergency Lowering Means (AREA)
  • Mechanical Control Devices (AREA)
US740171A 1968-02-08 1968-06-26 Reset device for counters Expired - Lifetime US3531047A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEH0065254 1968-02-08

Publications (1)

Publication Number Publication Date
US3531047A true US3531047A (en) 1970-09-29

Family

ID=7163073

Family Applications (1)

Application Number Title Priority Date Filing Date
US740171A Expired - Lifetime US3531047A (en) 1968-02-08 1968-06-26 Reset device for counters

Country Status (4)

Country Link
US (1) US3531047A (de)
CH (1) CH469312A (de)
DE (1) DE1574737B2 (de)
GB (1) GB1163698A (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3711684A (en) * 1970-05-15 1973-01-16 Elmeg Resetting device for the digital rolls of counters
US3845899A (en) * 1972-10-14 1974-11-05 Matsushita Electric Works Ltd Electromagnetic counter
FR2445981A1 (fr) * 1979-01-08 1980-08-01 Hengstler Kg Dispositif de remise a zero de mecanismes compteurs
US4277677A (en) * 1978-06-30 1981-07-07 J. Hengstler K.G. Mechanical counter

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3545703C1 (de) * 1985-12-21 1987-05-14 Hengstler Kg Null- oder Rueckstelleinrichtung fuer Rollenzaehlwerke

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1781320A (en) * 1930-11-11 crosman
DE1143348B (de) * 1960-04-07 1963-02-07 Merk Ag Telefonbau Friedrich Rueckstellvorrichtung fuer die Ziffernrollen eines Zaehlwerkes
US3178111A (en) * 1962-08-24 1965-04-13 Sodeco Compteurs De Geneve Counting mechanisms
US3451620A (en) * 1967-01-21 1969-06-24 Hengstler Kg Setting device for presettable counters having actuating keys

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1781320A (en) * 1930-11-11 crosman
DE1143348B (de) * 1960-04-07 1963-02-07 Merk Ag Telefonbau Friedrich Rueckstellvorrichtung fuer die Ziffernrollen eines Zaehlwerkes
US3178111A (en) * 1962-08-24 1965-04-13 Sodeco Compteurs De Geneve Counting mechanisms
US3451620A (en) * 1967-01-21 1969-06-24 Hengstler Kg Setting device for presettable counters having actuating keys

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3711684A (en) * 1970-05-15 1973-01-16 Elmeg Resetting device for the digital rolls of counters
US3845899A (en) * 1972-10-14 1974-11-05 Matsushita Electric Works Ltd Electromagnetic counter
US4277677A (en) * 1978-06-30 1981-07-07 J. Hengstler K.G. Mechanical counter
FR2445981A1 (fr) * 1979-01-08 1980-08-01 Hengstler Kg Dispositif de remise a zero de mecanismes compteurs
US4284881A (en) * 1979-01-08 1981-08-18 J. Hengstler K.G. Digit wheel counter

Also Published As

Publication number Publication date
DE1574737A1 (de) 1971-12-30
GB1163698A (en) 1969-09-10
DE1574737B2 (de) 1973-12-13
CH469312A (de) 1969-02-28

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