US3673876A - Motion transforming device for producing a reciprocating motion - Google Patents

Motion transforming device for producing a reciprocating motion Download PDF

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Publication number
US3673876A
US3673876A US73783A US3673876DA US3673876A US 3673876 A US3673876 A US 3673876A US 73783 A US73783 A US 73783A US 3673876D A US3673876D A US 3673876DA US 3673876 A US3673876 A US 3673876A
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US
United States
Prior art keywords
sprocket
catch
transforming device
chain
motion
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
US73783A
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English (en)
Inventor
Friedbert R Rohner
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Individual
Original Assignee
Individual
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
Priority claimed from DE19691953829 external-priority patent/DE1953829B2/de
Application filed by Individual filed Critical Individual
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Publication of US3673876A publication Critical patent/US3673876A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H19/00—Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion
    • F16H19/02—Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion for interconverting rotary or oscillating motion and reciprocating motion
    • F16H19/06—Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion for interconverting rotary or oscillating motion and reciprocating motion comprising flexible members, e.g. an endless flexible member
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H54/00—Winding, coiling, or depositing filamentary material
    • B65H54/02—Winding and traversing material on to reels, bobbins, tubes, or like package cores or formers
    • B65H54/28—Traversing devices; Package-shaping arrangements
    • B65H54/2821—Traversing devices driven by belts or chains
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/30—Handled filamentary material
    • B65H2701/31—Textiles threads or artificial strands of filaments
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/18—Mechanical movements
    • Y10T74/18056—Rotary to or from reciprocating or oscillating
    • Y10T74/18152—Belt or chain carried member

Definitions

  • the invention provides a motion transforming device for producing a reciprocating motion.
  • the device utilizes a multiple chain which has one chain which meshes with a pair of sprockets in order to be driven thereby while a second chain is carried alone in unencumbered fashion.
  • a catch sprocket is disposed within the second chain in selective meshing engagement with only one of the reaches of the chain at a time in order to transfer a reciprocating motion to a slider within a fixed guide.
  • the catch sprocket is sized and guided within a suitable guide means so as to move with the intermeshed reach of the second chain.
  • the catch sprocket In order to reverse the direction of movement of the slider, the catch sprocket is guided by the guide means away from the first reach into meshing engagement with the second reach of the chain at the ends of the respective reaches.
  • the catch sprocket is also provided with slide pieces which permit the catch sprocket to move between the reaches of the chain of the multiple chain as well as within the slider without rotation during this reversing course. In this way, the catch sprocket is prevented from rotating with respect to the slider while being reversed in direction.
  • the path which the catch sprocket is driven through can be defined by any suitable endless path consonant with the function of the slider.
  • the catch sprocket as defined by the centerlinc, can follow an elongated oval shaped path with parallel runs; a path in which one run is inclined with respect to the other; and a path in which one run is formed of two portions in angular relation to each other.
  • FIG. 1 illustrates a plan view of a motion transforming device according to the invention
  • FIG. 2 illustrates a fragmentary side view of the device of FIG. 1;
  • FIG. 3 illustrates an end view and a side view, respectively of a catch sprocket according to this invention
  • FIG. 4 illustrates a line of travel of the center of the catch sprocket, and a travel time graph
  • FIG. 5 illustrates alternate lines of travel of the center of the catch sprocket with associated travel time graphs
  • FIG. 6 illustrates an end view and a side view, respectively, of another embodiment of the catch sprocket according to the invention.
  • FIG. 7 illustrates a view of the catch sprocket at a point of reversal.
  • the drive transforming motion e.g., for a thread guide (not shown) of a winding machine, includes a double chain 1 which has a lower chain and an upper chain.
  • the lower chain extends between'and around two single sprockets 2, 3 one of which drives the chain 1.
  • the transforming motion also has a slider 5 which is slidably mounted in a fixed guide 4 positioned over the chain and which is driven in a reciprocating motion.
  • a circular catch sprocket 6 is connected between the chain 1 and slider 5.
  • This catch sprocket 6 has a diameter which is less than that of the sprockets 2 and 3 so as to be in meshing engagement with only one of the reaches of the upper chain at a time.
  • the catch sprocket 6 is provided on the upper face with an elongated slide piece 7 which engages in a guide groove 8 of the slider 5 and on the lower face with a slide piece 9 which extends perpendicularly to the upper slide piece 7. As shown in FIG. 3, the slide pieces 7, 9 are turned with respect to each other.
  • a guide means for guiding the catch sprocket 6 is an endless path is located a short distance above the sprockets 2, 3.
  • This guide means includes a guide plate 10 which has two parallel slots ll, 12 in which the slide piece 9 of the catch sprocket 6 is alternately received.
  • the guide plate 10 also has a web 13 separating the slots ll, 12 which is only slightly longer than the distance between the sprockets 2, 3.
  • the catch sprocket 6 is mounted with the slide piece 9 in a slot 11, 12. of the guide plate 10 and with the slide piece 7 in the groove 8 of the slider 5.
  • the teeth of the sprocket 6 to one side are also disposed in meshing engagement with one reach of the upper chain. Because of the slide piece 7, the catch sprocket 6 is not able to rotate in the slider 5.
  • the chain conveys the catch sprocket 6 via the teeth so as to slide by means of the slide piece 9 in the slot 12.
  • the slide piece 9 also ensures proper meshing of the teeth and simultaneously prevents engagement with the chain on the opposite side.
  • the slide piece 9 Shortly before the reversing point at the left, as viewed, the slide piece 9 leaves the slot 12 and the catch sprocket 6 then passes along the semicircular turn of the chain 1, until the side of meshing has changed. That is, as shown in FIG. 7, the slide piece 9 and catch sprocket 6 are sized so that when the slide piece 9 emerges out of the slot 12 a forward tooth C becomes meshed with the chain 1. The catch sprocket 6 is then carried by the chain 1 in a direction generally perpendicular to the axes of the slots 11, 12 until the slide piece 9 becomes aligned with the slot 12. At this time, a tooth B comes into meshing engagement with the chain 1 while a tooth A simultaneously comes out of meshing engagement with the chain 1.
  • the center of the catch sprocket 6 remains a constant distance from the centerline of the chain 1 and follows a line of travel as shown in FIG. 4, consisting of two straight portions l4, l5 and two circular portions 16, 17 with the distance between the straight portions l4, being equal to the diameter of the circular return bend.
  • the smallest possible distance is about equal to the depth of the teeth of the catch sprocket 6.
  • the slots of the guide plate can be disposed in angular relation with the sprockets 2, 3 being made of different diameters so as to produce a line of travel as shown.
  • one slot of the guide plate can be formed with two portions which are in angled relation to each other. Further, both slots of the guide plate can be angled as indicated in the lower part of FIG. 5 with the sprockets 2, 3 being made of different diameters.
  • the catch sprocket 60 can alternatively be provided with a longitudinally elongated form in order to decrease the distance travelled by the slider 5.
  • catch sprocket 6 does not rotate when passing from one slot to the other of the slots l1, 12.
  • very high frequencies of reversal can be obtained since a number of teeth of the catch sprocket 6 are caught within the chain 1 especially at the reversal points so that the reversing forces due to inertia can be received efi'ectively.
  • a motion transforming device for producing a reciprocating motion comprising a multiple chain having at least two chains; a pair of sprockets in meshing engagement with one of said chains for driving said chains; a catch sprocket having a plurality of teeth thereon, at least one of said teeth being in meshing engagement with a selective one of a pair of reaches of the other of said chains;
  • a motion transforming device as set forth in claim 2 wherein said slider has a groove therein and said catch sprocket has a second slide piece slidably received in sard groove to prevent rotation of said catch sprocket relative to said slider, said second slide piece being turned with respect to said first slide piece to permit movement of said catch sprocket in two directions perpendicular to each other.
  • a motion transforming device as set forth in claim 1 which further comprises a fixed guide slidably receiving said slider therein for reciprocation therein.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transmission Devices (AREA)
US73783A 1969-07-18 1970-09-21 Motion transforming device for producing a reciprocating motion Expired - Lifetime US3673876A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE1936757 1969-07-18
DE19691953829 DE1953829B2 (de) 1969-10-25 1969-10-25 Vorrichtung zum umwandeln einer drehbewegung in eine hin und hergehende bewegung

Publications (1)

Publication Number Publication Date
US3673876A true US3673876A (en) 1972-07-04

Family

ID=25757675

Family Applications (1)

Application Number Title Priority Date Filing Date
US73783A Expired - Lifetime US3673876A (en) 1969-07-18 1970-09-21 Motion transforming device for producing a reciprocating motion

Country Status (6)

Country Link
US (1) US3673876A (enrdf_load_stackoverflow)
BE (1) BE751339A (enrdf_load_stackoverflow)
CH (1) CH514493A (enrdf_load_stackoverflow)
FR (1) FR2048431A5 (enrdf_load_stackoverflow)
GB (1) GB1310708A (enrdf_load_stackoverflow)
NL (1) NL7005531A (enrdf_load_stackoverflow)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4270089A (en) * 1977-10-07 1981-05-26 Samsonite Corporation Scanning magnetic test head
US4712518A (en) * 1985-10-18 1987-12-15 R. L. Thomas Power output mechanism for an internal combustion engine
US6971286B2 (en) * 2002-07-22 2005-12-06 Bobby Hu Ratcheting wrench with quick tightening/loosening functions and fine adjusting functions
CN113028024A (zh) * 2019-12-24 2021-06-25 熊学智 新型节能变速器

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10306232A1 (de) * 2003-02-14 2004-08-26 Rieter Ingolstadt Spinnereimaschinenbau Ag Antriebsvorrichtung für einen Fadenführer zum changierenden Verlegen eines Fadens vor einer Spulvorrichtung

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4270089A (en) * 1977-10-07 1981-05-26 Samsonite Corporation Scanning magnetic test head
US4712518A (en) * 1985-10-18 1987-12-15 R. L. Thomas Power output mechanism for an internal combustion engine
US6971286B2 (en) * 2002-07-22 2005-12-06 Bobby Hu Ratcheting wrench with quick tightening/loosening functions and fine adjusting functions
CN113028024A (zh) * 2019-12-24 2021-06-25 熊学智 新型节能变速器
CN113028024B (zh) * 2019-12-24 2024-03-26 熊学智 新型节能变速器

Also Published As

Publication number Publication date
GB1310708A (en) 1973-03-21
FR2048431A5 (enrdf_load_stackoverflow) 1971-03-19
CH514493A (de) 1971-10-31
NL7005531A (enrdf_load_stackoverflow) 1971-01-20
BE751339A (fr) 1970-11-16

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