US3660642A - Impulse counter - Google Patents

Impulse counter Download PDF

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Publication number
US3660642A
US3660642A US18046A US3660642DA US3660642A US 3660642 A US3660642 A US 3660642A US 18046 A US18046 A US 18046A US 3660642D A US3660642D A US 3660642DA US 3660642 A US3660642 A US 3660642A
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US
United States
Prior art keywords
anchor
lever
numeral
wheel
wheels
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
US18046A
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English (en)
Inventor
Jean Jullien-Davin
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.)
Thales Avionics SAS
Original Assignee
Crouzet SA
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 Crouzet SA filed Critical Crouzet SA
Application granted granted Critical
Publication of US3660642A publication Critical patent/US3660642A/en
Anticipated expiration legal-status Critical
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
    • G06M1/02—Housing
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06M—COUNTING MECHANISMS; COUNTING OF OBJECTS NOT OTHERWISE PROVIDED FOR
    • G06M1/00—Design features of general application
    • G06M1/04—Design features of general application for driving the stage of lowest order
    • G06M1/041—Design features of general application for driving the stage of lowest order for drum-type indicating means
    • G06M1/044—Design features of general application for driving the stage of lowest order for drum-type indicating means with escapements
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06M—COUNTING MECHANISMS; COUNTING OF OBJECTS NOT OTHERWISE PROVIDED FOR
    • G06M1/00—Design features of general application
    • G06M1/08—Design features of general application for actuating the drive
    • G06M1/10—Design features of general application for actuating the drive by electric or magnetic means
    • G06M1/102—Design features of general application for actuating the drive by electric or magnetic means by magnetic or electromagnetic means
    • G06M1/104—Design features of general application for actuating the drive by electric or magnetic means by magnetic or electromagnetic means electromagnets, clicks
    • 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
    • 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
    • G06M1/32—Actuating means, e.g. magnet, spring, weight
    • G06M1/323—Actuating means, e.g. magnet, spring, weight with drums

Definitions

  • FIG. 10a FIG. [0b
  • FIG. Ila is a diagrammatic representation of FIG.
  • IMPULSE comma This invention is directed to an electromechanical impulse counter with zero resetting whichis of very small'overall size and can be constructed in large-scale production under particularly economic conditions of capital-expenditure.
  • the control system comprises an electromagnet for attracting an armature which is fixed on a rocking. bridge and the alternating motion of which is transmitted to a 'ratchet-and-pawl system so that a step-by-step movement of rotation is thus obtained.
  • This stepby-step movement is transmitted by means of a secondary pinion to a gear-Wheel-which is usually integral with the graduated numeral wheel of the lowest order (units). Transmission to the other numeral indicating wheels is carried out in a wellknown manner by means of secondary pinions' which are mounted coaxially on a shaft.
  • a pressure applied to an articulated lever has the effect in a first stage of di'sengagingthe secondary pinions and locking these latter against a fixed component in order to maintain them in a suitable angular position and, in a second stage, of resetting the numeral wheels to zero by means of the well known heart cam system.
  • the present invention is directed to the novel industrial product which is constituted by a manual-reset impulse counter ascharacterized by a design concept which permits of particularly economical large-scale manufacture by virtue of a reduction in the number of components,
  • This invention is also characterized in that the alternating motion derived from thepulse istransmitted directly and therefore without any intermediate pinion to the first numeral wheel;
  • the zero resetting mechanism is so arranged that it is possible by means of a single operation to obtain the disengagement of the feed mechanism; the disengagement of thesecondary pinions and locking of these latter and zero resetting of the numeral indicating wheels by means of a heart cam.
  • FIG. 1 is a view in elevation of the assembled-apparatus, the casing being shown in cross-section'along t helineI I-ofFIG;
  • FIG. 2 is aprofile view of the samezappara'tus, the casing "being'shown in cross-section along the line TII- III-of FIG. '1
  • FIG. 3 is a profile view ofthe'cage of the apparatus
  • FIGS. 4 and 4a are two views at'right angles to each other and showing the 'componentwhich performs the-function of spacer'member andwheel locking member
  • FIG. S isa sectionalview'ofthecoilIformer
  • FIG. 6 is a transverse sectional'viewof-the'casing of the apparatus push-lever; prior to zeroresett ing
  • FIG. 13 shows the arrangement of the anchor and of the push-lever after disengagement of the secondary pinions and finally, I
  • FIG. l4 shows the arrangement of the push-lever and of the heart cams at the moment of zero resetting.
  • FIGS. 1 and 2 show very clearly the compactness of a counter as constructed in accordance with the invention and comprising five, numeral wheels.
  • the dimensions of the apparatus are only 33 X 22 mm in body section and 48 X 24 mm in the case of a projecting front face and conform to recommended standards.
  • the apparatus can consequently be readily built-in and fixed on standard supports by means of the front face.
  • the apparatus comprises a cage 1 formed of magnetic metal.
  • This cage has the double functionof supporting the mechanism and of serving at the same time as a stationary magnetic armature.
  • Said cage is usually formed by folding and has the shape of a U, the two arms of which have a tendency to converge.
  • the spacing of the arms is maintained by means of a spacer member 2 whose extremities in the form of a tenon are intended to engage in an easy fit in two rectangular slots in of the cage 1.
  • the cage 1 is intended in the first place to support the coil, the molded former of which in turn carries the connecting ter minals and the magnetic core.
  • the coil former 3 of molded material is illustrated in FIG. 5.
  • a slot 3a is formed at the base of said former so that this latter may be moved by sliding over the base 1d of the cage 1.
  • the magnetic core of the coil is first inserted into the coil and maintained within this latter in a longitudinal position by that portion of its machined extremity which is applied against the portion 3d of the coil former while theopposite extremity of the core is applied against the base 1d of the cage 1 (as shown in FIG. 2).
  • the complete assembly is fixed in position by means of the casing 5 which is provided with two relatively displaced slots 5a and 5b while the coil former 3 is provided with two lugs 3b, 30. his apparent from FIG. 2 that the two lugs 3b, 3c are capable of engaging respectively in the slots 5b 5a.
  • the elasticityof the casing walls permitsthe deformation of the casing in order that this latter may slide over the two lugs at the time of fitting in position.
  • the lug 3c is additionally provided with. an inclined face so as to facilitate the engagement of the casing and the deformation of its wall.
  • FIGS. 7 and 8 The constructional details of. the moving armature 6 are shown in FIGS. 7 and 8.
  • I v One extremity of the armature is provided with two tenons 6a 6b which are adapted to fit into two openings lb and 1c of the cage 1.
  • a sufficiently easy fit is provided in order that the armature should be permitted to oscillate as shown by the arrow F in FIG. 7.
  • the extremity 6c of the armature 6 is adapted to fit into an opening 7a of the feed anchor 7 which .pivots about the shaft 8.
  • edges of the elongated slot '7a. are convex both in the longitudinal direction and inthe transverse direction, thereby permitting a free articulationlbetweenthearmature 6 and the anchor 7.
  • the anchor 7 to which the impulse movement is applied is acted upon by a spring 13 and, and the action of the same spring, in turn urges the armature 6 to the initial position which-is remote from the electromagnet.
  • the anchor '7 provides a direct drive to the first numeral indicating wheel 11 (shown in FIG. 10) which is cast in one piece with the escape wheel llacSaid indicating wheel is also cast in one piece with the heart cam 11b which will serve for zero resetting.
  • Adistinguishing feature of the anchor 7v lies in the fact that the anchor pallets7btand 7c are suitably spaced so that, when the anchor is maintained in an intermediate position, the escape wheel is capable of rotating freely and thus permits resetting of the first numeral wheel which is integral therewith.
  • FIG. 1 Another feature of the apparatus is provided by the mechanism for resetting to zero. This operation can be carried out by means of a non-articulated push-lever 12, one example of construction of which is illustrated in FIG. 1 1.
  • FIG. 12 illustrates the apparatus which has carried out a recording operation and in which the counter is ready to be reset to zero.
  • the anchor is maintained in the position which is shown in the drawings (the anchor pallet 7b being in the engaged position) under the action of the spring 13.
  • the extremity of the push-layer 12 projects outside the casing 5 in order to permit the application of manual pressure, for example.
  • Said lever is adapted to slide within a slot 50 (as shown in FIG. 6) which is fonned in such a manner as to permit the inclination of the lever in the direction which is shown in FIGS. 13 and 14 under the action of the force F.
  • the face 12b of the lever 12 is intended to rest on a cylindrical sleeve 14 which is freely mounted on the shaft 9 of the secondary pinions.
  • Said shaft 9 is rotatably mounted in two holes of the cage 1 which are in the form of elongated slots 1e and 1f, with the result that the shaft 9 can be set in two end positions, one of which permits the engagement of the secondary pinions with the teeth of the numeral wheels while the other end position permits both the disengagement of said pinions and the free rotation of all the numeral wheels for the purpose of subsequent resetting of these latter to zero.
  • the secondary pinions In the disengaged position, the secondary pinions will be locked against the spacer member 2 in order to maintain the angular position-setting of their teeth with respect to that of the numeral wheels.
  • each wheel is provided with its'own heart cam which is intended to be actuated by a lever element having a shoulder 12d.
  • These elements are disposed in a comb-tooth arrangement
  • FIG. 11 illustrates a preferred form of construction of a push-lever which is formed in one piece by molding.
  • An electromagnetically operated impulse counter comprising a casing, numeral wheels disposed within said casing and freely mounted on a bearing shaft, releasable transmission means for operatively interconnecting said wheels, heart cams associated with said wheels, an electromagnet rigidly fixed to said casing, a moving armature for cooperating with said electromagnet at each current impulse, an escapement anchor which is pivotally coupled to said armature and so shaped as to permit in a predetermined position the free rotation of the first numeral wheel, a non-articulated zero resetting control pushlever, said lever being provided with a plurality of juxtaposed teeth in cooperating relation with the said heart cams and provided with two lateral anns which are integral therewith and adapted to cooperate with a secondary shaft carrying transfer pinions, the complete assembly making it possible against the action of a spring and under the action of a single manual pressure on said push-lever in a first stage to effect the disengagement of the transfer pinions and to maintain said pinions in an angular position, in
  • An impulse counter according to claim 1 which includes a toothed escape wheel integral with said first numeral wheel and directly actuated by said anchor for moving the said first numeral wheel.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Electromagnetism (AREA)
  • Mechanical Control Devices (AREA)
  • Mechanical Operated Clutches (AREA)
  • Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)
  • Displays For Variable Information Using Movable Means (AREA)
US18046A 1969-03-14 1970-03-10 Impulse counter Expired - Lifetime US3660642A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR6907796A FR2038553A5 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1969-03-14 1969-03-14

Publications (1)

Publication Number Publication Date
US3660642A true US3660642A (en) 1972-05-02

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Application Number Title Priority Date Filing Date
US18046A Expired - Lifetime US3660642A (en) 1969-03-14 1970-03-10 Impulse counter

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Country Link
US (1) US3660642A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
CH (1) CH529392A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DE (1) DE2011722C3 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
ES (1) ES377517A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
FR (1) FR2038553A5 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
GB (1) GB1301685A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3925741A (en) * 1973-08-30 1975-12-09 Tamura Electric Works Ltd Electromagnetic counter

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3028795C1 (de) * 1980-07-30 1981-12-10 Elmeg Elektro-Mechanik Gmbh, 3150 Peine Ankergangantrieb fuer Impulszaehlwerke
DE3028797C2 (de) * 1980-07-30 1983-06-01 Elmeg Elektro-Mechanik Gmbh, 3150 Peine Rückstellbares Zählwerk

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2980329A (en) * 1956-09-28 1961-04-18 Durant Mfg Co Counter resetting means
US3053441A (en) * 1958-07-24 1962-09-11 Veeder Root Inc Counter
US3321134A (en) * 1965-06-04 1967-05-23 Bowmar Instrument Corp Gear train resetting mechanism

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2980329A (en) * 1956-09-28 1961-04-18 Durant Mfg Co Counter resetting means
US3053441A (en) * 1958-07-24 1962-09-11 Veeder Root Inc Counter
US3321134A (en) * 1965-06-04 1967-05-23 Bowmar Instrument Corp Gear train resetting mechanism

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3925741A (en) * 1973-08-30 1975-12-09 Tamura Electric Works Ltd Electromagnetic counter

Also Published As

Publication number Publication date
CH529392A (fr) 1972-10-15
GB1301685A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1973-01-04
ES377517A1 (es) 1972-07-01
DE2011722B2 (de) 1974-05-22
DE2011722C3 (de) 1975-01-09
DE2011722A1 (de) 1970-09-24
FR2038553A5 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1971-01-08

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