DK144589B

DK144589B - TRAEK AND LIFTING EQUIPMENT

Info

Publication number: DK144589B
Application number: DK351373AA
Authority: DK
Inventors: M Cavalieri
Original assignee: Tractel Sa
Priority date: 1972-06-27
Filing date: 1973-06-26
Publication date: 1982-04-05
Also published as: ES416302A1; DK144589C; NO132684C; AU471376B2; AU5742073A; BR7304670D0; IE38446L; FI52323B; IL42566A0; IE38446B1; DE2332168A1; US3863893A; PL87725B1; DE2332168C3; IL42566A; CH568000A5; CA971548A; ATA554073A; LU67868A1; NO132684B

Description

(19) DANMARK ί |(19) DENMARK ί |

(12) FREMLÆGGELSESSKRIFT od 144589 B(12) PUBLICATION OF 144589 B

DIREKTORATET FOR PATENT- OG VAREMÆRKEVÆSENETDIRECTORATE OF THE PATENT AND TRADEMARKET SYSTEM

(21) Ansøgning nr. 5515/73 (51) Int.CI.3 B 66 D 3/02 (22) Indleveringsdag 26. jun. 1973 p <|ø β 11/12 (24) Løbedag 26. jun. 1975 (41) Aim. tilgængelig 28. dec. 1973 (44) Fremlagt 5· apr. 1982 (86) International ansøgning nr. -(86) I nternational indleveringsdag -(85) Videreførelsesdag -(62) Stamansøgning nr. -(21) Application No. 5515/73 (51) Int.CI.3 B 66 D 3/02 (22) Filing date 26 Jun. 1973 p <| ø β 11/12 (24) Running day 26 Jun. 1975 (41) Aim. available Dec. 28; 1973 (44) Posted 5 Apr 1982 (86) International Application No. - (86) On International Filing Day - (85) Transfer Day - (62) Master Application No. -

(30) Prioritet 27- jun. 1972, 7223182, ER(30) Priority 27-Jun. 1972, 7223182, ER

(71) Ansøger TRACTEL S.A., 93170 Bagnolet, FR.(71) Applicant TRACTEL S.A., 93170 Bagnolet, FR.

(72) Opfinder Michel _C avail er i, PR.(72) Inventor Michel _C avail is in, PR.

(74) Fuldmægtig Ingeniørfirmaet Giersing & Stellinger.(74) Associate Engineer Giersing & Stellinger.

(54) Træk- og hejseapparat.(54) Towing and hoisting equipment.

Opfindelsen angår et træk- og hejseapparat af den art, ved hvilket et metalkabel er ført i en retliniet bane mellem to klembakkepar, som er indrettet til at bevæges frem og tilbage i modtakt i kablets længderetning under afvekslende fastklemning omkring kablet og frigørelse af dette, idet klembakkerne i hvert klembakkepar er indbyrdes forbundet ved to par spændearme, af hvilke de to til det ene klembakkepar hørende spændearmspar ved deres ene ende er svingeligt forbundet med en forbindelsesstang, som pi sin side er forbundet med en svingelig betjeningsarm, medens de to til det andet klembakkepar hørende spændearme pi tilsvarende mide er forbundet med en anden forbindelsesstang, som ligeledes er forbundet med betje-^ ningsarmen, hvorhos spændearmene ved deres fra forbindelsesstængerne bortvendende Q-j ende er forbundet med en udløsermekanisme til ophævelse af klembakkernes klem- OO virkning.BACKGROUND OF THE INVENTION 1. Field of the Invention This invention relates to a towing and hoisting apparatus of the kind in which a metal cable is routed in a rectilinear path between two clamp tray pairs adapted to reciprocate in the longitudinal direction of the cable while alternately clamping around the cable and releasing it. the clamping trays of each clamping tray pair are interconnected by two pairs of clamping arms, of which the two clamping pair pairs belonging to one clamping tray are pivotally connected at one end to a connecting rod, which in turn is connected to a pivoting operating arm, while the two to the other clamp tray pairs of clamping arms p1 correspondingly are connected to another connecting rod, which is also connected to the operating arm, whereby the clamping arms at their Qj end facing away from the connecting rods are associated with a release mechanism for abolishing the clamping action of the clamping jaws.

LOLO

_-j- Ved kendte apparater af denne art er apparatets dele anbragt i et med en ophængningskrog forsynet hus, i hvilket betjeningsarmen er lejret. Trækkraften i kablet overføres derfor via betjeningsarmens lejring i huset gennem dette til ^ ophængningskrogen, og huset ml derfor være tilsvarende solidt udformet, hvorved apparatet som helhed bliver tungt og omfangsrigt. Til bortledning af den fra klembakkerne udtrædende slappe ende af kablet fra huset er betjeningsarmen i 2 1445S8 nærheden af sin lejring i huset udført gaffelformet, således, at kablet kan passere mellem gaffelgrenene og ud gennem en åbning i huset ved siden af ophængningskrogen. Den heraf betingede forøgede udstrækning af betjeningsarmen i retning af dens lejringsakse medfører en tilsvarende forøgelse af husets dimensioner i denne retning, og dermed en yderligere forøgelse af husets vægt.In known apparatus of this kind, the parts of the apparatus are arranged in a housing provided with a suspension hook in which the operating arm is mounted. The traction force in the cable is therefore transmitted via the arm of the control arm in the housing through it to the suspension hook, and the housing ml therefore be similarly solidly shaped, whereby the apparatus as a whole becomes heavy and bulky. In order to divert the cable from the housing exiting the clamping jaws from the housing, the operating arm in the vicinity of its housing in the housing is fork-shaped, so that the cable can pass between the fork branches and out through an opening in the housing next to the suspension hook. The consequent increased extension of the control arm in the direction of its bearing axis results in a corresponding increase in the dimensions of the housing in this direction, and thus a further increase in the weight of the housing.

Opfindelsen har til formål at tilvejebringe et træk- og hejseapparat af den indledningsvis angivne art, ved hvilket de omtalte ulemper undgås, og som følgelig kan udføres med et hus med ringe vægt og små dimensioner.The invention has for its object to provide a towing and hoisting apparatus of the kind set forth at the outset, thereby avoiding the aforesaid disadvantages, and which can consequently be carried out with a small weight and small dimensions housing.

Ifølge opfindelsen opnås dette ved, at forbindelsesstængernes respektive forbindelsespunkter med betjeningsarmen er beliggende på modstående sider af en svingningsforbindelse mellem betjeningsarmen og et led, som bærer en ophængningskrog for apparatet, og at den ene forbindelsesstang på et sted mellem betjenings-armen og det nærmest beliggende klembakkepar bærer en afbøjningsplade til sideværts afbøjning af metalkablets slappe ende ud gennem en sideåbning i apparatets hus.According to the invention this is achieved by the respective connecting points of the connecting rods with the operating arm being on opposite sides of a pivotal connection between the operating arm and a link carrying a suspension hook for the apparatus, and that one connecting rod at a location between the operating arm and the nearest clamping tray pair. carries a deflection plate for laterally deflecting the slack end of the metal cable through a side opening in the housing of the apparatus.

Ved denne udformning indgår apparatets hus således ikke i forbindelsen mellem betjeningsarmens lejring og ophængningskrogen, og endvidere bøjes metalkablets slappe ende ud fra huset, inden den kommer frem til betjeningsarmen, som derfor kan udføres med mindre dimension i retning af lejringsaksen. Huset kan derfor have tilsvarende mindre dimension i denne retning. Da huset således ikke skal kunne optage væsentlige kraftpåvirkninger, kan det udføres som lette skaller, f.eks. af formstof, med ringe dybde.Thus, in this embodiment, the housing of the apparatus does not form part of the connection between the control arm's bearing and the suspension hook, and furthermore the slack end of the metal cable is bent out of the housing before it reaches the control arm, which can therefore be carried out with a smaller dimension in the direction of the bearing axis. The housing may therefore have a correspondingly smaller dimension in this direction. Thus, since the housing must not be able to absorb significant force effects, it can be carried out as light shells, e.g. of plastic material, with low depth.

En yderligere aflastning af huset, og dermed end endnu lettere udformning af dette, kan i en foretrukken udførelsesform for apparatet ifølge opfindelsen opnås ved, at den ene forbindelsesstang består af to i indbyrdes afstand parallelt forløbende dele, mellem hvilke den anden forbindelsesstang er anbragt, og som er indbyrdes forbundet ved et afstandsstykke, på hvilket er lejret en rulle, som griber ind i en langsgående føringsslidse i den anden forbindelsesstang. Ved denne udformning er forbindelsesstængerne ført på hinanden og på metalkablet og behøver derfor ingen føring i apparatets hus, således som det ellers er tilfældet ved kendte apparater af den omhandlede art.A further relief of the housing, and thus even easier design thereof, can be achieved in a preferred embodiment of the apparatus according to the invention in that one connecting rod consists of two spaced apart parallel portions between which the other connecting rod is arranged, and which are interconnected by a spacer on which is mounted a roller which engages a longitudinal guide slot in the second connecting rod. In this embodiment, the connecting rods are routed on one another and on the metal cable and therefore do not need guide in the housing of the apparatus, as is otherwise the case with known apparatus of the kind in question.

En typisk udførelsesform for apparatet ifølge opfindelsen beskrives nærmere i det følgende under henvisning til tegningen, hvor fig. 1 viser apparatet set fra siden og i snit, idet den ene halvdel af huset sammen med den ene halvdel af en forbindelsesstang er fjernet for at vise mekanismen mere detaljeret, og fig. 2 viser et detailsnit langs linien II-II på fig. 1.A typical embodiment of the apparatus according to the invention is described in more detail below with reference to the drawing, in which: FIG. 1 is a side elevational and sectional view of one half of the housing together with one half of a connecting rod removed to show the mechanism in more detail; and FIG. 2 shows a detail section along line II-II of FIG. First

Mekanismen er indeholdt i et forholdsvis fladt hus bestående af to aflange, fladt skålformede halvdele 1, 2, der er i det væsentlige indbyrdes symmetriske og 144589 3 er samlede ved hjælp af skruer eller bolte, der gir gennem huller 3 langs hushalvdelenes omkreds. Den trækbelastede del af et trækkabel 4 er ført ind i huset ved 5, dvs. i den ende af huset, der i det følgende betegnes som husets bagende, medens den slappe del 6 af kablet 4 er ført ud fra huset gennem en længdeslidse 7 i hushalvdelen 2 (der ikke er vist pi fig. 1).The mechanism is contained in a relatively flat housing consisting of two elongated, flat bowl-shaped halves 1, 2 which are substantially mutually symmetrical and are assembled by screws or bolts passing through holes 3 along the circumference of the housing halves. The tensile part of a tension cable 4 is inserted into the housing at 5, i.e. at the end of the housing, hereinafter referred to as the rear of the housing, while the slack portion 6 of the cable 4 is led out of the housing through a longitudinal slot 7 in the housing half 2 (not shown in Fig. 1).

Fra husets forende rager en ophængningskrog 8 ud gennem to over for hinanden liggende udskæringer i de to hushalvdele 1, 2. Krogen 8 er lejret pi en tværtap 9, der bæres af den ene ende af et dobbelt fastgørelsesled 10, hvis anden ende er svingelig lejret pi en tværtap 11, der bærer en betjeningsarm 12, der tjener til at drive kablet i fremadretning ved træk i eller ved ophejsning af en last, der er fastgjort til kablet. Betjeningsarmen 12 indvirker pi forbindelsesstænger 15, 17, som udfører længdebevægelser i modsatte retninger, ved hjælp af to tappe 13 og 14, som er anbragt symmetrisk pi hver sin side af tappen 11. Den med tappen 13 forbundne forbindelsesstang 15 bestir af to i indbyrdes afstand parallelt anbragte plader, som er forbundet med et bageste klemorgan, og tappen 14 er svingeligt forbundet med den ene ende af et dobbelt langsgående led 16, hvis anden ende er svingelig forbundet med forbindelsesstangen 17, som forbundet med et forreste klemorgan.From the front of the housing, a suspension hook 8 protrudes through two opposite cuts in the two housing halves 1, 2. The hook 8 is mounted on a transverse pin 9 supported by one end of a double fastening joint 10, the other end of which is pivotally mounted in a transverse pin 11 carrying a control arm 12 which serves to propel the cable forwardly by pulling in or by raising a load attached to the cable. The control arm 12 acts on connecting rods 15, 17 which perform longitudinal movements in opposite directions by means of two pins 13 and 14 arranged symmetrically on each side of the pin 11. The connecting rod 15 connected by two spaced apart plates arranged in parallel with a rear clamping member, and the pin 14 being pivotally connected to one end of a double longitudinal joint 16, the other end of which is pivotally connected to the connecting rod 17, as connected to a front clamping member.

De to klemorganer er ens og omfatter en øverste klembakke 18, som pi undersiden er forsynet med en not med buet tværsnitsform, og en nederste klembakke 19, som pi oversiden forsynet med en not med samme kontur. Klembakkerne 19 i hvert klemorgan bærer hver to tværtappe 10 og 21, pi hvilke to par spændearme (22,24 for det bageste klemorgan og 23,25 for det forreste klemorgan) er svingeligt lejret, idet armene i hvert par er anbragt pi hver sin side af de tilsvarende klembakker 18,19 og har en nedadvendende forlængelse, som ved hjælp af tappe 26 er svingeligt forbundet med stangen 15 for det bageste klemorgan og ved hjælp af tappe 27 med stangen 17 for det forreste klemorgan.The two clamping means are the same and comprise an upper clamping tray 18, which is provided on the underside with a groove of curved cross-sectional shape, and a lower clamping tray 19, which on the upper side is provided with a groove with the same contour. The clamping jaws 19 of each clamping member each carry two transverse pins 10 and 21, on which two pairs of clamping arms (22.24 for the rear clamping means and 23.25 for the front clamping means) are pivotally mounted, the arms of each pair being positioned on each side of the corresponding clamping jaws 18,19 and has a downwardly extending extension which is pivotally connected to the rod 15 of the rear clamping means by pin 26 and by means of pin 27 to the rod 17 of the front clamping member.

De bageste spændearme 25 for det forreste klemorgan er oven over den øverste klembakke 18 ved hjælp af en tap 28 svingeligt lejret på den nederste ende af udløserarm 29, og de bageste spændearme 24 for det bageste klemorgan er ved hjælp af en tap 30 svingeligt forbundet med den ene ende af et led 31, hvis anden ende ved hjælp af en tap 32 er svingeligt forbundet med den nævnte udløserarm 29. Omtrent midt mellem tappene 28 og 32 bærer udløserarmen 29 et anlæg 33 for den ene ende af to forspændte skruetrykfjedre 34, som omgiver forbindelsesstænger 35, der kan glide igennem et Ig 36, mod hvilke den anden ende af fjedrene 34 ligger an. Åget 36 er bestanddel af en indstillingsstang 37, som rager ud fra apparatets hus over ophængningskrogen 8 og som pi den yderste ende bærer en udløserknap 38, med hvilken indstillingsstangen 37 enten kan sættes i sin bageste position, i hvilken fjedrene 34 er noget sammenpressede, eller frigives, så at fjedrene 34 kan udvides.The rear clamping arms 25 of the front clamping means are pivotally mounted above the upper clamping tray 18 by means of a pin 28 on the lower end of the release arm 29, and the rear clamping arms 24 of the rear clamping means are pivotally connected to a one end of a link 31, the other end of which is pivotally connected to said release arm 29. by means of a pin 32, approximately midway between the pins 28 and 32, the release arm 29 carries a abutment 33 for one end of two prestressed screw pressure springs 34 which surrounds connecting rods 35 which can slide through an Ig 36 against which the other end of the springs 34 abut. The yoke 36 is a component of an adjusting rod 37 which protrudes from the housing of the apparatus above the suspension hook 8 and carries at its outer end a release knob 38, with which the adjusting rod 37 can either be put in its rear position in which the springs 34 are somewhat compressed, or is released so that the springs 34 can be extended.

144589 4144589 4

Hertil består indstillingsstangen 37 f.eks. af et U-formet bukket metalpladestykke, som på sin underside bærer en låsenot 39, som er indrettet til at bringes i indgreb med et fremspring, f.eks. en lille plade 40, der er fast forbundet med huset. Forbindelsesstængerne 35 kan udgøres af metaltråde bøjet i U-form, og anlægget 33 kan udgøres af en passende udformet plade, gennem hvilken disse forbindelsesstænger 35 er ført.For this, the adjustment rod 37 consists e.g. of a U-shaped bent metal plate piece, which carries on its underside a locking note 39 which is arranged to engage a projection, e.g. a small plate 40 firmly connected to the housing. The connecting rods 35 may be formed of metal wires bent in U-shape, and the plant 33 may be formed by a suitably formed plate through which these connecting rods 35 are passed.

De to forbindelsesstænger 15, 17 føres af hinanden under deres translationsbevægelser i modsatte retninger ved hjælp af et afstandsstykke 41, som er fast forbundet med stangen 15, og som bærer en rulle 42, der griber ind i en slidse 43 i stangen 17rs forreste del, idet den anden ende af denne stang 17 har et føringsfremspring 44, som er bevægeligt mellem en med stangen 15 fast forbundet tap 45 og den tidligere nævnte svingtap 26.The two connecting rods 15, 17 are guided by one another during their translation movements in opposite directions by means of a spacer 41 which is firmly connected to the rod 15 and which carries a roller 42 which engages a slot 43 in the front portion of the rod 17; the other end of this rod 17 having a guide projection 44 movable between a pin 45 fixedly connected to the rod 15 and the aforementioned pivot pin 26.

Stangen 15 bærer i den forreste del og i niveau med kablet 4 et afbøjningsorgan 46 (fig. 2), som er indrettet til at føre kablet 4 i skrå retning udefter gennem en åbning 47 i en af stangen 15's plader og derfra gennem længdeåbningen 7 i husets tilsvarende halvdel 2.The rod 15 carries in the front part and at the level of the cable 4 a deflection means 46 (Fig. 2) which is arranged to guide the cable 4 in an oblique direction outwards through an opening 47 in one of the bars 15 and from there through the longitudinal opening 7 in the the corresponding half of the house 2.

Apparatet har i princippet samme virkemåde som de hidtil kendte træk- og hejseapparater med to klemorganer, som arbejder i modsatte retninger til henholdsvis klemning og frigivelse af kablet.The apparatus has in principle the same operation as the previously known two clamping and hoisting devices which operate in opposite directions for clamping and releasing the cable, respectively.

Til ophævelse af forspændingen af klemorganerne og muliggørelse af kablet 4's fri passage mellem klembakkerne 18,19 i de to klemorganer, frigives fjedrene 34 ved påvirkning af indstillingsstangen 37, så at denne kan strække sig længere ud fra huset 1, 2. Derved kan den fri ende af et kabel, til hvilket der er fastgjort en last, frit stikkes ind gennem indføringen 5, indtil denne ende kommer ud på siden af huset efter at have passeret mellem klemorganerne som allerede beskrevet ovenfor. Hvis stangen 37 herefter føres tilbage til sammentrykning af fjedrene 34, er apparatet parat til at trække eller at hejse lasten ved hjælp af kablet 4.To release the bias of the clamping means and enable the free passage of the cable 4 between the clamping jaws 18,19 in the two clamping means, the springs 34 are released by actuating the adjusting rod 37 so that it can extend further out of the housing 1, 2. end of a cable to which a load is attached is freely inserted through the insert 5 until this end exits on the side of the housing after passing between the clamping means as already described above. If the rod 37 is then returned to compression of the springs 34, the apparatus is prepared to pull or hoist the load by the cable 4.

Ved bevægelse af betjeningsarmen 12 frem og tilbage bevæges klemorganerne i modsatte retninger, og klemorganet, der er trukket fremad nedefra, spændes, fordi drejningen af spændearmene 22, 24 eller 23, 25 for klemorganerne i urvisernes omløbsretning omkring tappene 26, 27 virker til at forøge klemvirkningen. Eftersom det andet klemorgan , der skubbes bagud, udløses, i modsætning til den ved hjælp af det første klemorgan frembragte virkning, på grund af funktionen af det andet klemorgans arme, hvis akser 20,21 rettes op til en stilling, der i det væsentlige er vinkelret på kablets akse under bevægelse af dets klembakker 18, 19 bort fra hinanden, vil det forstås, at denne påvirkning vil bevirke, at kablet 4 og den dermed forbundne last bevæges i retning fremad, dvs. mod apparatet.As the control arm 12 moves back and forth, the clamping means are moved in opposite directions and the clamping member pulled downwards is tightened because the rotation of the clamping arms 22, 24 or 23, 25 of the clamping means in the clockwise direction around the pins 26, 27 acts to increase the clamping action. Since the second clamping member pushed back is triggered, in contrast to the action produced by the first clamping member, because of the function of the arms of the second clamping member, whose axes 20,21 are directed to a position which is substantially perpendicular to the axis of the cable while moving its clamping jaws 18, 19 apart, it will be understood that this effect will cause the cable 4 and the associated load to move in the forward direction, i.e. towards the apparatus.

Hvis på den anden side en lignende frem- og tilbagebevægelse udøves på udløserarmen 29, vil de to klemorganer ligeledes bevæges i modsatte retninger, menOn the other hand, if a similar reciprocating motion is exerted on the trigger arm 29, the two clamping means will also be moved in opposite directions, but

Claims

That which moves in the forward direction is released while the other is tensioned, which permits a controlled backward movement of the load due to the outward movement of the tightened length of the cable through the inlet opening 5. It can be seen from the foregoing that the adjustment rods and the connected arms consist of flat pieces of die-cut metal plate and that the outer dimension of the thickness of the housing 1, 2 can be significantly reduced, since it is only required that this thickness corresponds to the sum of the thickness of the two plates forming the rod 15 of the two plates forming the joint 16, and of the arm 12 or rod 17 (these latter two parts being arranged in a common center plane between the two plates constituting said rod 16), plus the necessary clearance, and of course the thickness of the housing halves 1 and 2 Under these conditions an extremely flat house can be obtained. On the other hand, since this housing is subjected only to the relatively moderate biasing force exerted by the springs 34, this housing may have relatively thin walls and therefore a low weight. The two halves 1, 2 may be molded of suitable plastic material and be interconnected in the middle length plate of the housing, the operating members 12, 29 and 38 projecting from this housing through circumferential openings formed by recesses in the central edges of these housing parts 1 and 2. It should be noted that the guide pin 45 may be omitted if the rear extension 44 of the bar 17 has a shape which permits engagement of this extension with some clearance with the underside of the lower clamping member of the rear clamping member.

1. A towing and hoisting apparatus of the kind in which a metal cable (4) is guided in a rectilinear path between two clamping tray pairs (18, 19) adapted to reciprocate in the longitudinal direction of the cable during alternating clamping about the cable and release thereof, the clamping trays of each clamping tray pair being interconnected by two pairs of clamping arms (22,24 and 23,25, respectively), of which the two clamping arm pairs (22,24) of one clamping tray are pivotally connected at one end thereof with a connecting rod (15), which in turn is connected to a pivoting control arm (12), while the two clamping arms (23,25) of the second clamp tray pair are similarly connected to another connecting rod (17), which also is connected to the operating arm (12), whereby the clamping arms at their end facing away from the connecting rods are connected to a release mechanism (29, 31) for releasing the clamping action of the clamping jaws, characterized in that the connecting rods (15,17) respective connecting points (13 and 14, respectively) with the operating arm (12) are located on opposite sides of a pivotal connection (11) between the operating arm and a link (10) which carries a suspension hook (8) for the apparatus and one connecting rod (15) at a location between the control arm (12) and the nearest clamping tray pair (18,19) carries a