DE148805C - - Google Patents

Info

Publication number
DE148805C
DE148805C DE1902148805D DE148805DA DE148805C DE 148805 C DE148805 C DE 148805C DE 1902148805 D DE1902148805 D DE 1902148805D DE 148805D A DE148805D A DE 148805DA DE 148805 C DE148805 C DE 148805C
Authority
DE
Germany
Prior art keywords
lifting
jack
springs
traverse
work
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
Application number
DE1902148805D
Other languages
German (de)
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 filed Critical
Application granted granted Critical
Publication of DE148805C publication Critical patent/DE148805C/de
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66FHOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F3/00Devices, e.g. jacks, adapted for uninterrupted lifting of loads
    • B66F3/08Devices, e.g. jacks, adapted for uninterrupted lifting of loads screw operated
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21DSHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D15/00Props; Chocks, e.g. made of flexible containers filled with backfilling material
    • E21D15/58Devices for setting props or chocks
    • E21D15/581Devices for setting props or chocks in which the props are pre- loaded
    • E21D15/5813Devices for setting props or chocks in which the props are pre- loaded by means of power accumulators to be pre-charged by rock pressure

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Movable Scaffolding (AREA)

Description

KAISERLICHESIMPERIAL

PATENTAMT,PATENT OFFICE,

Vorliegende Erfindung bezieht sich auf einen Hebebock, und es besteht das Wesentliche derselben darin, daß zwischen der Hebetraverse und einer am Fuße des Gerüstes fest angebrachten Traverse Schraubenfedern angeordnet werden, deren in ihrem zusammengepreßten Zustand aufgespeichertes Arbeitsvermögen zur Unterstützung der Hebearbeit verwendet wird.The present invention relates to a jack, and there is the gist the same in that between the lifting beam and one at the foot of the scaffolding stuck attached traverse coil springs are arranged, their compressed in their State of accumulated work capacity is used to support lifting work.

ίο Auf der beiliegenden Zeichnung ist ein solcher Hebebock beispielsweise dargestellt. Wie ersichtlich, ist dieser nur mit einer in einer Spindelmutter B geführten Spindel C ausgerüstet, es können jedoch ebensogut zwei oder noch mehr Spindeln Verwendung finden.ίο Such a jack is shown in the accompanying drawing, for example. As can be seen, this is only equipped with a spindle C guided in a spindle nut B , but two or more spindles can just as well be used.

Die bewegliche Hebetraverse E ist einerseits auf dem Spindelkopf c gelagert, andererseits auf dem oberen Ende der beiden Rohre J, die in der Traverse α des Bockgestelles leicht gleitend geführt und mit ihrem unteren Ende an der Traverse j befestigt sind, wobei letztere gleichzeitig zur Versteifung des ganzen Systems dient. Zwischen der Traverse E und der Fußplatte des Bockgestelles werden Schraubenfedern K angeordnet; diese liegen in den Rohren J und werden durch die Stangen L, welche bis zur Traverse α reichen, geführt.The movable lifting traverse E is mounted on the one hand on the spindle head c , on the other hand on the upper end of the two tubes J, which are guided in the traverse α of the trestle frame and are attached with their lower end to the traverse j , the latter at the same time to stiffen the the whole system. Helical springs K are arranged between the traverse E and the base plate of the trestle frame; these lie in the tubes J and are guided by the rods L, which extend to the cross member α.

Beim Niederlassen des Hebebockes werden die Federn K zusammengepreßt; wird der Hebebock nun zum Heben irgend einer Last verwendet, so wird die hierzu erforderliche Arbeit zum Teil von den Federn K geleistet, indem hierbei die vorher durch das Zusammendrücken der Federn aufgespeicherte Energie wieder frei wird. Auf diese Weise wird eine wesentliche Erleichterung der Hebearbeit erreicht. When lowering the jack, the springs K are compressed; If the jack is now used to lift any load, the work required for this is partly done by the springs K , in that the energy previously stored by the compression of the springs is released again. In this way, the lifting work is made considerably easier.

Claims (1)

Pate nt-A N SPRU CH :Pate nt-A N SPRU CH: Hebebock, dadurch gekennzeichnet, daß zwischen der Hebetraverse und der Fußplatte des Bockgestelles Sch'raubenfedern angeordnet sind, die beim Niederlassen des Hebebockes das Aufspeichern eines gewissen Arbeitsvermögens durch das Zusammendrücken (Spannen) der Federn ermöglichen, welches dann beim Heben einer Last wieder frei und ausgenutzt wird, um die Hebearbeit zu erleichtern.Lifting jack, characterized in that between the lifting cross-member and the footplate of the trestle frame helical springs are arranged, which when lowering the jack, the storage of a enable certain work capacity by compressing (tensioning) the springs, which is then released and used again when lifting a load in order to facilitate the lifting work. Hierzu 1 Blatt Zeichnungen.1 sheet of drawings.
DE1902148805D 1902-12-16 1902-12-16 Expired DE148805C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL148805T 1902-12-16

Publications (1)

Publication Number Publication Date
DE148805C true DE148805C (en) 1904-02-25

Family

ID=415866

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1902148805D Expired DE148805C (en) 1902-12-16 1902-12-16

Country Status (1)

Country Link
DE (1) DE148805C (en)

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