US3673877A - Power or manual drive cable traction apparatus - Google Patents

Power or manual drive cable traction apparatus Download PDF

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Publication number
US3673877A
US3673877A US99462A US3673877DA US3673877A US 3673877 A US3673877 A US 3673877A US 99462 A US99462 A US 99462A US 3673877D A US3673877D A US 3673877DA US 3673877 A US3673877 A US 3673877A
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US
United States
Prior art keywords
control lever
set forth
rod
sprocket
chain
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
US99462A
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English (en)
Inventor
Charles Jean Pierre Lebre
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.)
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 FR6945047A external-priority patent/FR2071382A5/fr
Priority claimed from FR7002397A external-priority patent/FR2074741B1/fr
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of US3673877A publication Critical patent/US3673877A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • F16H21/00—Gearings comprising primarily only links or levers, with or without slides
    • F16H21/06—Gearings comprising primarily only links or levers, with or without slides which can be made ineffective when desired
    • F16H21/08—Gearings comprising primarily only links or levers, with or without slides which can be made ineffective when desired by pushing a reciprocating rod out of its operative position
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D3/00—Portable or mobile lifting or hauling appliances
    • B66D3/006—Power actuated devices operating on ropes, cables, or chains for hauling in a mainly horizontal direction
    • 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
    • F16H19/08—Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion for interconverting rotary motion and oscillating motion
    • 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
    • F16H37/00—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00
    • 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
    • F16H2700/00—Transmission housings and mounting of transmission components therein; Cooling; Lubrication; Flexible suspensions, e.g. floating frames
    • F16H2700/02—Transmissions, specially for working vehicles
    • 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

  • crankshaft as a conventional means for transforming a rotary motion into a reciprocating motion to be imparted to the control or drive lever of the apparatus, would give in this case but poor results due on the one hand to the considerable space required for the crankshaft movement and on the other hand to the continuous variation in the applied torque which entails a useless power consumption during one fraction of the stroke.
  • the tractive effort is transmitted through a constant lever arm operating by thrust, the length of said lever arm corresponding to the half of the pitch diameter of said sprocket.
  • the transmission member associated through said pivoted arm with the control lever of the apparatus may advantageously consist of an endless roller chain passed over said sprocket driven from the engine and over another sprocket mounted for loose rotation in a bearing carried by the case of the apparatus, said chain carrying on its outer side a crankpin having mounted thereon for loose rotation one end of a connecting rod having its opposite end pivoted to said arm operatively connected in turn to the control lever.
  • the chain may be guided along a circular are formed by guide members adjustably secured to the case of the apparatus.
  • the endless roller chain may be connected to the control lever through a two-section connecting-rod so mounted as to afford a limited relative sliding play between each other, one section of said connecting-rod being pivoted to the crankpin of said endless roller chain and the other section is coupled to the control lever of the apparatus.
  • FIG. 1 is a diagrammatic side elevational view of a cable traction apparatus according to this invention
  • FIG. 2 is a fragmentary longitudinal section showing a sliding connecting-rod adapted to be fitted as an alternative to the apparatus of this invention
  • FIG. 3 is a vertical section taken along the line III-III of FIG. 2 and showing a detail on a larger scale.
  • FIG. 1 DESCRIPTION OF THE PREFERRED EMBODIMENTS
  • the apparatus illustrated in side-elevational view in FIG. 1 is of the type adapted to pull a cable or rope and its internal mechanism is now well-known per se and therefore will not be described herein.
  • This apparatus is enclosed in a case I and comprises a shaft emerging therefrom, to which is attached a control lever 2 adapted to be fitted with a telescopic extension (not shown) and, when oscillated in the directions shown by the arrows A and B, to cause a cable 3 to move through the apparatus.
  • a complementary lever 5 is fitted to the manual lever 2 by means of a collar-forming device 6 secured to this lever 2 by means of a lock screw 7.
  • the complementary lever 5 comprises a strap-shaped portion 8 provided with a transverse pivot pin 10 to which one end of an arm 9 is pivoted, this arm 9 consisting for example of a section of square-sectioned tube having its opposite end pivoted through another pivot pin 23 to a connecting-rod 22 pivoted in turn to a crankpin 19 detachably mounted laterally to an endless roller chain 18 and constituting one of the assembling links of chain 18, by means of a pair of pivot pins 20, 21.
  • the endless chain 18 is passed over a pair of chain sprockets 16, 17, the pinion 17 being mounted for loose rotation in a bearing carried by the lower portion of case I, pinion 16 being rigid on the one hand with a stub shaft engaged in a bearing secured to the upper portion of case 1 and on the other hand with a toothed wheel 15 of relatively great diameter, in constant meshing engagement with a driving pinion 14 of relatively small diameter, rotatably driven in turn from a gas engine 4 (or any other suitable internal-combustion engine) mounted to the upper portion of the apparatus case I.
  • a gas engine 4 or any other suitable internal-combustion engine
  • the arm 9 is adapted to be easily connected to and disconnected from the strap 8 according as the apparatus is to be driven by the engine 4 or manually; to this end the arm 9 has slidably mounted thereon a notched sleeve 12 engageable by projections 11 formed on the strap 8, a set screw 13 being provided for locking the sleeve 12 in its power-drive position (shown in FIG. 1); releasing the screw 13 will permit of disengaging the arm 9 from strap 8.
  • crankpin l9 In order to obtain a part-circular movement of crankpin l9 and therefore of chain 18, arcuate guide members 24, 25 slidably engaged by lever 2 and adapted to co-act with one end of a flat connecting-rod 32 having its other end provided with a sleeve-like member 33 having slidably mounted therein a link 34.
  • This link 34 has its outer end mounted for free rotation for example by means of a needle bearing 35 on the aforesaid crankpin 19.
  • link 34 in the sleeve-like member 33 of connecting-rod 32 is obtained by means of balls 36 engaging longitudinal grooves 37 and 38 formed on the one hand in the upper and lower edges of link 34 and on the other hand in the corresponding inner faces of wedge-shaped members 39 interposed between said upper and lower faces of sleeve 33 and the corresponding faces of link 34.
  • Spring means 40 disposed at the ends of each row of balls 36 are provided for mutually centering these balls so that they can move along the grooves 37, 38 without abuting against the ends of these grooves, as this would produce a wedging effect on link 34.
  • the wedge-members 39 disposed within the sleeve-like member 33 are locked in position after proper adjustment by means of set screws 41 co-acting with elongated apertures (not shown) formed in the connecting-rod 32, these wedgelike members 39 constituting convenient means for adjusting the free sliding movements of link 34, without any undue play.
  • a control lever 42 is pivoted laterally on the strap-shaped member 31, the pivotal movement of lever 42 in one direction causing through eccentric means the meshing engagement of teeth 43 formed in said strap-shaped member with corresponding teeth l 44 carried by the connecting rod 32, in order rigidly to interconnect these members 31 and 32. Actuating the lever 42 in the opposite direction will disengage the teeth 43, 44 from one another to disconnect the strap 31 from rod 32.
  • the engine 4 used for powering the apparatus may be of any other suitable type and be associated with a torque limiter 45 interposed in the shaft driving the sprocket 16, in order to impart a greater safety of operation thereto; on the other hand, this engine 4 may advantageously operate at suitably selected speed ranges or values.
  • this crankpin 19 is described as constituting a detachable link interconnecting adjacent links of the roller chain, this .crankpin could also be simply carried by an ordinary chain link without interconnecting other chain links.
  • a traction apparatus operating by successive reciprocating movements, adapted to be controlled at will either manually or automatically through power means, which comprises a control lever adapted to be reciprocated and mounted on a shaft projecting from the case enclosing the cable-traction mechanism of the apparatus, wherein an engine is mounted to the case of the apparatus and adapted to drive in rotation a driving sprocket in continuous meshing engagement with a transmission member pivoted at one point to one end of a connecting arm having its other end coupled to the control lever of the apparatus, whereby the movement imparted to said transmission member as a consequence of its meshing engagement with said sprocket produces a reciprocating movement of said connecting arm and therefore of the control lever of the apparatus which is coupled thereto.
  • said transmission member consists of an endless roller chain passing over said driving sprocket and over a return sprocket mounted for loose rotation in a bearing carried by the case of the apparatus, said endless roller chain carrying on its outer side face a crankpin on which one end of a connecting-rod is mounted for free rotation, the other end of said connecting-rod being pivoted to said connecting ann coupled to said control lever of the apparatus.
  • crankpin constitutes a detachable link for assembling said endless roller chain.
  • said quickrelease apparatus consists of a strap having a collar-shaped end disposed around said control lever, the end of the connecting arm being pivoted to a transverse pivot pin carried by said strap, and being further adapted to be locked thereto by the engagement of studs or like projections carried by said strap into notches formed in a sleeve member adapted to slide on said connecting arm and to be set in any desired and suitable position therealong by means of set screws.
  • said transmission member consists of an endless roller chain following a rectilinear or arcuate path between said driving sprocket and said return sprocket mounted for loose rotation in a bearing carried by the case of the apparatus, said chain carrying a crankpin on its outer side, said crankpin having mounted for free rotation thereon the end of a link slidably mounted in a hollow portion of a connecting-rod having its end coupled to the control lever of the apparatus, the sliding stroke of said link being determined by the arcuate or rectilinear movement of said chain.
  • said quickrelease coupling device consists of a strap rigid with the control lever of the apparatus and adapted to co-act with the end of said hollow connecting-rod, said strap carrying an eccentric the operation of which causes the engagement of teeth carried by said strap with corresponding teeth carried by said hollow connecting-rod.
  • arcuate guide plates adapted to cause said endless chain to follow a substantially curvilinear path between said driving sprocket and said return sprocket, are adjustably secured to the case of the apparatus.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transmission Devices (AREA)
  • Hand Tools For Fitting Together And Separating, Or Other Hand Tools (AREA)
  • Storage Of Web-Like Or Filamentary Materials (AREA)
  • Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
US99462A 1969-12-26 1970-12-18 Power or manual drive cable traction apparatus Expired - Lifetime US3673877A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR6945047A FR2071382A5 (fr) 1969-12-26 1969-12-26
FR7002397A FR2074741B1 (fr) 1970-01-23 1970-01-23

Publications (1)

Publication Number Publication Date
US3673877A true US3673877A (en) 1972-07-04

Family

ID=26215452

Family Applications (1)

Application Number Title Priority Date Filing Date
US99462A Expired - Lifetime US3673877A (en) 1969-12-26 1970-12-18 Power or manual drive cable traction apparatus

Country Status (9)

Country Link
US (1) US3673877A (fr)
JP (1) JPS4941779B1 (fr)
AT (1) AT312866B (fr)
BE (1) BE760670A (fr)
BG (1) BG17742A3 (fr)
CH (1) CH521921A (fr)
DE (1) DE2061710A1 (fr)
GB (1) GB1270906A (fr)
NL (1) NL7018793A (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3881693A (en) * 1972-05-16 1975-05-06 Greifzug Hebezeugbau Gmbh Cable hauling apparatus
US3927862A (en) * 1973-12-18 1975-12-23 Sedit Manual or powered single-lever haul-in and haul-off apparatus
FR2787164A1 (fr) * 1998-12-09 2000-06-16 Genus Technologies Dispositif de serrage, de positionnement ou de maintien
US6283422B1 (en) * 1998-12-15 2001-09-04 Actuall B.V. Drive for mechanical adjustment of profile parts, piece of furniture, profile part and method for manufacturing a profile part

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3881693A (en) * 1972-05-16 1975-05-06 Greifzug Hebezeugbau Gmbh Cable hauling apparatus
US3927862A (en) * 1973-12-18 1975-12-23 Sedit Manual or powered single-lever haul-in and haul-off apparatus
FR2787164A1 (fr) * 1998-12-09 2000-06-16 Genus Technologies Dispositif de serrage, de positionnement ou de maintien
US6283422B1 (en) * 1998-12-15 2001-09-04 Actuall B.V. Drive for mechanical adjustment of profile parts, piece of furniture, profile part and method for manufacturing a profile part

Also Published As

Publication number Publication date
AT312866B (de) 1974-01-25
NL7018793A (fr) 1971-06-29
BE760670A (fr) 1971-05-27
DE2061710A1 (de) 1971-07-01
JPS4941779B1 (fr) 1974-11-11
BG17742A3 (fr) 1973-12-25
CH521921A (fr) 1972-04-30
GB1270906A (en) 1972-04-19

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