US3714400A - Counting mechanisms - Google Patents

Counting mechanisms Download PDF

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Publication number
US3714400A
US3714400A US00229921A US3714400DA US3714400A US 3714400 A US3714400 A US 3714400A US 00229921 A US00229921 A US 00229921A US 3714400D A US3714400D A US 3714400DA US 3714400 A US3714400 A US 3714400A
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US
United States
Prior art keywords
housing
counting
counter
shaped member
main portion
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
US00229921A
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English (en)
Inventor
R Laven
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Individual
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Individual
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Filing date
Publication date
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Publication of US3714400A publication Critical patent/US3714400A/en
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Expired - Lifetime legal-status Critical Current

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06M—COUNTING MECHANISMS; COUNTING OF OBJECTS NOT OTHERWISE PROVIDED FOR
    • G06M1/00—Design features of general application
    • G06M1/02—Housing

Definitions

  • a counter mechanism is disposed in a housing having a main and detachable portion.
  • a generally U-shaped member is disposed in the housing and supports on its one leg a series of numeral wheels and on its other leg the ters transfer pinions.
  • a groove is provided in the detachable portion of the housing and engages the web portion of the U-shaped member to urge the counter wheels toward the main portion of the housing and to locate the wheels in the correct operational position relative to a counter actuating mechanism.
  • the present invention relates to a counting mechanism having a plurality of counter wheels or the like arranged on a common counter wheel shaft and having means for tens transfer between counter wheels arranged on a support shaft extending parallel with the counter wheel shaft.
  • Counting mechanisms of this type are used in many different connections and many different forms of such counting mechanisms are known to the art.
  • Known counting mechanisms are expensive to manufacture, and there is a general desire for means by which the cost entailed by the manufacture thereof can be reduced especially in those fields where the actual counting mechanism forms a large part of an apparatus, although obviously a. reduction in the manufacturing cost of a counting mechanism should not be obtained in sacrifice of the necessary accuracy of the mechanism. This has been practically impossible to achieve with known types of calculating mechanisms, however, owing to their present advanced state of development.
  • the object of the present invention is therefore to provide a counting mechanism of simple construction, which can be'produced more cheaply than known types of counting mechanisms but which in spite of its lower price is equally reliable in operation as known mechanisms.
  • the counting mechanism according to the present invention which is mainly characterized in that the counter wheel shaft and the tens transfer means support shaft are formed by the parallel legs of a generally U-shaped member, one leg of which, preferably the counter wheel shaft, is journalled at its free end in a recess located in a housing which includes a detachable portion and which embodies means for actuating the counting mechanism, the web portion of the U-shaped member interconnecting the legs thereof abutting the outer surface of the counting wheel located furthest away from the main portion of the housing and, under the influence of the detachable portion of the housing, urges the counting wheels in a direction towards the main portion of the housing to a position in which the counting wheel located nearest the main portion of the housing abuts the housing and is located in the correct position relative to the
  • FIG. 1 illustrates an operation time meter provided with a counting mechanism according to the invention
  • FIG. 2 is a plan view of the arrangement illustrated in FIG. 1 with certain portions cut away, and
  • FIG. 3 is a sectional view taken along the line lll III in FIG. '2.
  • an operation time meter 1 provided with a counting mechanism constructed in accordance with the invention.
  • the operation time meter comprises a motor 2 and a housing having a main portion 3, which accommodates transmission means and actuators for the counting mechanism, and a portion 4 capable of being removed from the main portion 3 and accommodating the counting mechanism.
  • the counting mechanism includes a number of counter wheels 5 of known design journalled on a counter wheel shaft 6. Radially and slightly externally of the periphery of the counter wheels 5 is located a support shaft 7 which extends parallel with the counter wheel shaft 6, the support shaft 7 carrying tens transfer means 8 of known construction arranged to co-act with the counter wheels 5.
  • the counter wheel shaft 6 and the support shaft 7 are, together with a web portion 9, connected to form a U-shaped member, the counter wheel shaft and the support shaft comprising the parallel legs of the member.
  • the entire U-shaped member is made in one piece from wire or rod material.
  • One leg of the U- shaped member, in the exemplary embodiment the counter wheel shaft 6, is longer than he other leg and the free end thereof is journalled in a recess or hole located in the main portion 3 of the housing.
  • the free end of the support shaft 7 terminates at the counter wheel 5 located nearest the main portions 3 of the housing, and thus does not reach the main portion of the housing.
  • the recess or hole located in themain portion 3 of the housing for the counter wheel shaft 6 is not intended to hold the U-shaped member in any specific position of rotation or to guide the U-shaped member axially.
  • the removable portion 4 of the housing said portion including an end wall portion 10 located beyond the counting mechanism as seen from the main-portion 3 of the housing.
  • the end wall portion 10 is provided with two ridges 11 which betweenthem form a groove 12 in which the web 9 of the U-shaped member fits with a relatively small clearance in the transverse direction of the groove. The U-shaped member is thus held latched against rotation around the bearing of the counterwheel shaft 6 in the main portion 3 of the housing.
  • the depth of the groove 12 is such that when the removable portion 4 is placed in position the bottom of the groove 12 is urged against the web 9, which in turn bears against the nearest counter wheel 5.
  • the counter wheels 5 are constructed to transmit this pressure to the main portion 3 of the housing, against which the last counter wheels 5 bears. The pressure naturally need not be very great, but should be merely sufficient to hold the details in their correct positions.
  • the actuating means in the main portion 3 of the housing is in the form of a gearing
  • the last counter wheel 5 may be arranged to abut the outermost of the gears and hold the gears in their correct positions.
  • the web 9 of the-U- shaped member is not perfectly straight, but at the point where it is connected with the support shaft is gently curved through and at the point where it joins the counter wheel shaft 6 is first bent outwardly and the inwardly to coincide with the axis of the counter wheel shaft.
  • This construction is highly advantageous, since it ensures that the web is held spaced from the journal point of the nearest counter wheel 5 on the counter wheel shaft 6, thereby reducing the risk of rubbing of the counter wheel on the counter wheel shaft.
  • a counting mechanism disposed in a housing and having a plurality of counter wheels or the like arranged on a common counter wheel shaft and having means for tens transfer between the counter wheels arranged on a support shaft extending parallel with the counter wheel shaft, characterized in that the counter wheel shaft and the support shaft are formed by the parallel legs of a generally U-shaped member, one leg of which is journalled at its free end in a recess located in the housing which includes'a detachable portion and means for actuating the counting mechanism, the web portion of the U-shaped member interconnecting the legs thereof abuts the outer surface of the counting wheel located furthest away from the main portion of the housing and engages means on the detachable portion of the housing to urge the counting wheels in a member against the counting wheels and the main portion of the housing, and the side walls of the groove are arranged to prevent rotating of the U-shaped member around the leg thereof serving as the counter wheel shaft.
  • a counting mechanism characterized in that the U-shaped member is made of wire material and that its web portion is so constructed that at least the portion thereof intended to abut the counter wheel located furthest away from the main portion of the housinglies nearer the main portion of the housing than the remaining portions of said web.
  • a counting mechanism characterized in that the web if the U-shaped member is generally straight and that at the point where it is connected to the support shaft has the form of a gentle curve, while the web is constructed at the point where it is connected to the counter wheel shaft in a manner such that said web first curves slightly away from the main portion of the housing and then is curved back and bent 90 to coincide with the direction of extension of the counter wheel shaft.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Measurement Of Distances Traversed On The Ground (AREA)
  • Rollers For Roller Conveyors For Transfer (AREA)
  • Rolls And Other Rotary Bodies (AREA)
US00229921A 1971-03-04 1972-02-28 Counting mechanisms Expired - Lifetime US3714400A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE02800/71A SE350632B (de) 1971-03-04 1971-03-04

Publications (1)

Publication Number Publication Date
US3714400A true US3714400A (en) 1973-01-30

Family

ID=20260730

Family Applications (1)

Application Number Title Priority Date Filing Date
US00229921A Expired - Lifetime US3714400A (en) 1971-03-04 1972-02-28 Counting mechanisms

Country Status (3)

Country Link
US (1) US3714400A (de)
DE (1) DE2208164C3 (de)
SE (1) SE350632B (de)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3403851A (en) * 1966-07-29 1968-10-01 English Numbering Machines Counter mechanism
US3452927A (en) * 1967-12-19 1969-07-01 Veeder Industries Inc Modular counter

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3403851A (en) * 1966-07-29 1968-10-01 English Numbering Machines Counter mechanism
US3452927A (en) * 1967-12-19 1969-07-01 Veeder Industries Inc Modular counter

Also Published As

Publication number Publication date
DE2208164A1 (de) 1972-09-28
DE2208164C3 (de) 1974-03-14
DE2208164B2 (de) 1973-08-02
SE350632B (de) 1972-10-30

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