CH172279A - Prop. - Google Patents

Prop.

Info

Publication number
CH172279A
CH172279A CH172279DA CH172279A CH 172279 A CH172279 A CH 172279A CH 172279D A CH172279D A CH 172279DA CH 172279 A CH172279 A CH 172279A
Authority
CH
Switzerland
Prior art keywords
nut
forestay
pipe
inner pipe
thread
Prior art date
Application number
Other languages
French (fr)
Inventor
Adria S A
Original Assignee
Adria S A
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 by Adria S A filed Critical Adria S A
Publication of CH172279A publication Critical patent/CH172279A/en

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G25/00—Shores or struts; Chocks
    • E04G25/04—Shores or struts; Chocks telescopic
    • E04G25/06—Shores or struts; Chocks telescopic with parts held together by positive means
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G25/00—Shores or struts; Chocks
    • E04G25/04—Shores or struts; Chocks telescopic
    • E04G25/06—Shores or struts; Chocks telescopic with parts held together by positive means
    • E04G25/061—Shores or struts; Chocks telescopic with parts held together by positive means by pins
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G25/00—Shores or struts; Chocks
    • E04G25/04—Shores or struts; Chocks telescopic
    • E04G25/06—Shores or struts; Chocks telescopic with parts held together by positive means
    • E04G25/061—Shores or struts; Chocks telescopic with parts held together by positive means by pins
    • E04G25/063—Shores or struts; Chocks telescopic with parts held together by positive means by pins with safety devices to avoid the accidental loss or unlocking of the pin, e.g. chains attaching the pin to the prop
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G25/00—Shores or struts; Chocks
    • E04G25/04—Shores or struts; Chocks telescopic
    • E04G25/06—Shores or struts; Chocks telescopic with parts held together by positive means
    • E04G25/065—Shores or struts; Chocks telescopic with parts held together by positive means by a threaded nut

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)

Description

  

      Etai.       On     connait    des étais dont on se sert en  particulier dans les travaux en béton armé  pour soutenir les coffrages de planchers, de  balcons ou, d'une manière générale, de toutes  les constructions qui occupent une certaine  surface et qui doivent être portées pour au  tant que le ciment n'a pas encore pris. Ces  étais comportent deux ou plusieurs tuyaux  s'introduisant     téleseopiquement        Pun    dans  l'autre et la longueur de l'étai est réglée par  une cheville pénétrant dans des trous percés  <B>à</B> une certaine distance les uns des autres  selon un diamètre du ou des tuyaux inté  rieurs.

   Dans ces trous s'introduit une cheville  qui     s'appuyé    sur un écrou de réglage     d6pla-          çable    le long du tuyau extérieur.  



  L'écrou de réglage est nécessaire pour  faire des longueurs qui ne sont pas un mul  tiple exact de la distance des trous. Le pas  de vis sur lequel circule cet écrou est, de par  la nature même de l'emploi de l'étai, soumis  <B>à</B> des fatigues accidentelles susceptibles de       Pendommager,    si bien que le réglage devient    par la suite toujours plus laborieux<B>à</B> mesure  que l'étai vieillit.  



  L'objet de la présente invention est un  étai du genre précité mais dans lequel on a  prévu des moyens pour éviter     l'endommagé-          ment    accidentel du pas de vis et les     incon-          v6nients    qui en résultent. L'étai selon la pré  sente invention est caractérisé en ce que son  écrou est prolongé le long     #u    pas de vis par  des douilles de protection qui cachent ce der  nier. Dans un modèle préféré, la  douille su  périeure possède un rebord qui limite une  ouverture dont le diamètre est égal<B>à</B> celui  du tuyau intérieur. On obtient de ce fait une  assise plus large pour la cheville traversant  ledit tuyau.  



  Le dessin annexé représente,<B>à</B> titre  d'exemple, une forme d'exécution de l'objet  de l'invention en coupe axiale.  



  Le tuyau extérieur a possède un pied<B>b</B>  et est fileté en<B>c</B> sur une longueur supérieure  <B>à</B> celle de la distance des trous     d    du tube  intérieur e. Sur ce pas de vis     c    se déplace      un écrou<B>f</B>     que    l'on peut tourner au moyen  d'une poignée<B>g</B> articulée en<I>h.</I> Cet écrou<B>f</B>  est prolongé vers le haut par une douille i  et vers le bas par une dite<B>k.</B> Ces douilles  se déplacent avec l'écrou et sont     suffisammept     longues pour que, lorsque l'écrou est an haut  du pas de vis     c,    la douille<B>k</B> couvre encore  le bas du pas de vis. Lorsque l'écrou se trouve  en cet endroit, la douille i cache le haut du  pas de vis.  



  Cette douille i possède un rebord<B>1</B>     qui     limite une ouverture ronde de diamètre égal  <B>à</B> celui du tuyau e. On obtient de cette ma  nière une assise plus large pour la cheville  ni que l'on introduit dans les trous e du tube  intérieur pour le réglage grossier de la lon  gueur totale de l'étai.



      Prop. We know of props which are used in particular in reinforced concrete work to support formwork for floors, balconies or, in general, all constructions which occupy a certain area and which must be carried for as long as possible. that the cement has not yet set. These props comprise two or more pipes which are introduced telescopically Pun into the other and the length of the forestay is regulated by a pin penetrating into holes drilled <B> at </B> a certain distance from each other at a distance. diameter of the internal pipe (s).

   A dowel is inserted into these holes which rests on an adjusting nut which can be moved along the outer pipe.



  The adjusting nut is needed to make lengths which are not an exact multiple of the hole distance. The thread on which this nut runs is, by the very nature of the use of the forestay, subjected <B> to </B> accidental fatigue liable to damage it, so that the adjustment subsequently becomes always more laborious <B> to </B> as the forestay ages.



  The object of the present invention is a prop of the aforementioned type, but in which means have been provided for preventing accidental damage to the thread and the disadvantages which result therefrom. The prop according to the present invention is characterized in that its nut is extended along #u screw thread by protective sleeves which hide the latter. In a preferred model, the upper sleeve has a flange which limits an opening whose diameter is equal to <B> </B> that of the inner pipe. This gives a wider base for the ankle passing through said pipe.



  The appended drawing represents, <B> by </B> by way of example, an embodiment of the object of the invention in axial section.



  The outer pipe a has a <B> b </B> foot and is threaded at <B> c </B> over a length greater <B> than </B> that of the distance of the holes d of the inner pipe e . On this thread c moves a nut <B> f </B> which can be turned by means of a handle <B> g </B> articulated in <I> h. </I> This nut <B> f </B> is extended upwards by a sleeve i and downwards by a so-called <B> k. </B> These sleeves move with the nut and are long enough so that, when the nut is at the top of the thread c, the sleeve <B> k </B> still covers the bottom of the thread. When the nut is in this location, the sleeve i hides the top of the thread.



  This sleeve i has a rim <B> 1 </B> which limits a round opening of diameter equal <B> to </B> that of the pipe e. In this way, a wider base is obtained for the ankle, nor is it inserted into the holes in the inner tube for the coarse adjustment of the total length of the forestay.

Claims (1)

REVENDICATION: Etai, en particulier pour travaux en béton armé comportant au moins deux tuyaux s'in troduisant téléseopiquement l'un dans l'autre, et dont la longueur est réglée par une che ville pénétrant dans des trous diamétraux du tuyau intérieur et appuyée sur un écrou de réglage déplacable le long de l'autre tuyau, étai caractérisé en ce que cet écrou est pro longé le long du pas de vis par des douilles de protection pour ce dernier. CLAIM: Forestay, in particular for reinforced concrete work comprising at least two pipes troducing telesopically one into the other, and the length of which is regulated by a city plug penetrating into diametrical holes of the inner pipe and supported on an adjusting nut which can be moved along the other pipe, a stay characterized in that this nut is extended along the screw thread by protective sleeves for the latter. SOUS-REVENDICATION: Etai selon la revendication, caractérisé en ce que la douille supérieure possède un re bord qui limite une ouverture ronde dont le diamètre est ô-,al. <B>à</B> celui de tuyau intérieur. ZD SUB-CLAIM: Forestay according to claim, characterized in that the upper sleeve has an edge which limits a round opening whose diameter is ô-, al. <B> to </B> that of the inner pipe. ZD
CH172279D 1933-11-07 1933-11-07 Prop. CH172279A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH172279T 1933-11-07

Publications (1)

Publication Number Publication Date
CH172279A true CH172279A (en) 1934-10-15

Family

ID=4423754

Family Applications (1)

Application Number Title Priority Date Filing Date
CH172279D CH172279A (en) 1933-11-07 1933-11-07 Prop.

Country Status (1)

Country Link
CH (1) CH172279A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2468484A (en) * 1947-01-17 1949-04-26 Acrow Eng Ltd Adjustable metal prop
US2844905A (en) * 1952-11-21 1958-07-29 Musser C Walton Telescopic unipod
US2906490A (en) * 1956-04-09 1959-09-29 Inland Steel Products Company Telescopic jack post

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2468484A (en) * 1947-01-17 1949-04-26 Acrow Eng Ltd Adjustable metal prop
US2844905A (en) * 1952-11-21 1958-07-29 Musser C Walton Telescopic unipod
US2906490A (en) * 1956-04-09 1959-09-29 Inland Steel Products Company Telescopic jack post

Similar Documents

Publication Publication Date Title
CH172279A (en) Prop.
BE489239A (en) improvements to adjustable metal props
CH163489A (en) Leaf stop.
CH241601A (en) Hollowed-out reinforced concrete base for post.
US2294835A (en) Pipe fitting for awning arms and the like
CH276346A (en) Adjustable forestay.
CH212617A (en) Cuvette holder.
BE490894A (en)
CH110249A (en) Cleaning device.
US2167888A (en) Spreader for concrete forms
CH193890A (en) Device for fixing a handle to a brush.
BE493164A (en)
CH193652A (en) Ski stick.
CH217841A (en) Key valve.
CH103790A (en) Device for articulation of the ribs of an umbrella or other similar object.
CH309480A (en) Screw and nut prop.
BE513406A (en)
BE419510A (en)
CH226662A (en) Drain plug for sinks.
CH161258A (en) Height adjustable forestay.
CH158784A (en) Device for attaching handles to scrub brushes, etc.
CH317187A (en) Ferrule for balance spring
CH109209A (en) Mirror support.
CH176774A (en) Display support.
CH316839A (en) Bearing for timepiece