EP0483885A1 - Vibrateur pour béton ou similaire - Google Patents

Vibrateur pour béton ou similaire Download PDF

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Publication number
EP0483885A1
EP0483885A1 EP91118827A EP91118827A EP0483885A1 EP 0483885 A1 EP0483885 A1 EP 0483885A1 EP 91118827 A EP91118827 A EP 91118827A EP 91118827 A EP91118827 A EP 91118827A EP 0483885 A1 EP0483885 A1 EP 0483885A1
Authority
EP
European Patent Office
Prior art keywords
disks
vibrator according
housing
vibrator
end covers
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.)
Granted
Application number
EP91118827A
Other languages
German (de)
English (en)
Other versions
EP0483885B1 (fr
Inventor
Dietrich Erhart
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
Application filed by Individual filed Critical Individual
Publication of EP0483885A1 publication Critical patent/EP0483885A1/fr
Application granted granted Critical
Publication of EP0483885B1 publication Critical patent/EP0483885B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
    • E04G21/02—Conveying or working-up concrete or similar masses able to be heaped or cast
    • E04G21/06—Solidifying concrete, e.g. by application of vacuum before hardening
    • E04G21/063—Solidifying concrete, e.g. by application of vacuum before hardening making use of vibrating or jolting tools
    • E04G21/065—Solidifying concrete, e.g. by application of vacuum before hardening making use of vibrating or jolting tools acting upon the shuttering

Definitions

  • the invention relates to a vibrator for concrete or the like, in particular for mounting on formwork, with a housing with a cylindrical interior and two end caps, and an imbalance rotating in the housing.
  • Vibrators of the aforementioned type are known.
  • the two end covers are connected to a cast housing that can be machined on all major surfaces.
  • the end covers have a fixed axle.
  • This axis carries a tube, the inside diameter of which is larger than the outside diameter of the axis and which represents the eccentrically rotating unbalance.
  • the unbalance is driven by compressed air, which passes through a membrane into the interior of the unbalance tube is introduced and discharged through an outlet on the opposite side.
  • the invention is based on the vibrators of the type specified. According to the invention it is proposed that the housing consists of individual, superimposed ring disks made of sheet metal.
  • ring disks can be manufactured in different ways. For example, they can be punched. However, the invention prefers that the ring disks are made from plates by means of laser cutting.
  • the construction of the housing from annular disks according to the invention offers a significant simplification. Depending on the size of the desired housing, more or fewer ring washers can be put together. It is not necessary to specially process the washers, especially if they are produced by laser cutting. With the specified design, the inner surface of the housing is not a running surface for the unbalance, which is guided by the central axis.
  • the annular disks have round holes distributed uniformly on the circumference Pick up fasteners. These round holes are made in the same operation as the panes themselves.
  • the round holes accommodate, for example, bolts that extend between the end caps.
  • the desired size of the housing can easily be obtained in this way by adding or omitting washers.
  • a particular advantage of this design is that the end covers can be installed in different positions relative to the ring washers, ie relative to the housing. In this way, the position of the central axis for the unbalance can also be changed. This has the advantage that the supply of compressed air can be adjusted depending on the type of use of the vibrator, so that it is always ensured that the vibrator also starts up. With the previous design, it was necessary to align the axis with the end covers accordingly.
  • the invention further proposes that a plurality of ring disks of substantially the same shape are combined with ring disks which have contours on the outer circumference which serve to fasten the housing to a base frame and / or to a formwork.
  • the fastening means for the housing can be produced in the same way as the ring disks themselves.
  • Part of the ring disks can, for example, have foot-like projections which serve to connect the relevant ring disks and thus also the vibrator to a base frame or formwork .
  • the contours are also produced by laser cutting, so that their manufacturing effort is greatly reduced.
  • end covers are also made from plate by means of laser cutting. If flat plates made of tempered sheet metal are used, arrangements can easily be obtained which no longer require subsequent processing.
  • the washers that form the housing in the invention generally have the same thickness. However, it is also possible to insert one or more spacer rings between the ring disks or the ring disks and the end covers in order to achieve a certain housing length with sufficient accuracy.
  • the invention proposes recesses in the end caps that deviate from the circular shape and that carry the central axes for the unbalance.
  • the ends of the central axis are adapted to these recesses. In this way, the mutual position of the central axis and the end cover is determined.
  • the orientation of the central axis with respect to the respective purpose is obtained by twisting the end cover in relation to the ring washers. This alignment is important for the startup behavior.
  • the end covers can in particular consist of several disks, which are also each made by laser cutting. By assembling the end cover from several disks, the designs required for the correct functioning can be easily achieved without the need for complex machining processes.
  • the design according to the invention is not only applicable to vibrators that are driven by compressed air.
  • the design according to the invention can also be realized in the case of electric vibrators.
  • the housing 1 consists of a package of ring disks 2, some of which have the same shape, but which also differ from one another in particular with regard to their outer contour 5.
  • the end covers 8 and 9 each consist of two disks 13 and 14.
  • the disks 13 and 14 or the end covers 8 and 9 serve on the one hand to seal the interior 15, which is enclosed by the annular disks 2, and on the other hand also to guide the tubular unbalance 16 and the fixation and non-rotatable fixing of the central axis 12.
  • the disks 13 and 14 have recesses 11 which deviate from the circular shape, as shown in the illustrations 4 and 6 emerge.
  • a flattening 17 is provided on the central axis 12.
  • Both the washers 2 and the washers 13 and 14 of the end caps 8 and 9 have uniformly distributed round holes 3, in which the connecting elements 4 designed as screws are arranged.
  • the associated nuts are designated 18 and the screw heads 19.
  • the uniform distribution of the round holes 3 allows the end caps 8 and 9, and thus also the central axis 12, to be arranged in different ways in the intended division of, for example, 45 degrees, in order to select the correct position of the central axis 12 with respect to the respective installation.
  • part of the ring disks 2 is designed as a simple disk, while other ring disks, namely the ring disks 32 have foot-like projections 7, so that an outer contour 5 deviating from the circular shape is obtained.
  • other approaches 21 are provided.
  • the foot-like lugs 7 engage under the mounting bolts 20 of the base frame 6.
  • the lugs 21 interact with the clamping wedge 23, which is also supported on the base frame 6 by means of the tab 22. In this way, a stable fixing of the housing 1 with respect to the base frame 6 can be obtained.
  • On the base frame 6 there are also support surfaces 24 for the housing 1.
  • the central axis 12 has the connection 25 for the compressed air which flows into the interior of the unbalance 16 via the membrane 26. This training is known per se. The air finally reaches the outlet openings 28 via the ventilation bores 27.
  • a suitable number of distance compensation rings 10 can also be used, which are made of thinner material than the washers 2.
  • FIG. 4 differs from that of FIGS. 1 to 3 essentially in that a part of the washers 2 each have two foot-like lugs 7 which cooperate with circular wedges 29 on the base frame 6.
  • the exemplary embodiment according to FIGS. 5 and 6 partly has ring disks whose foot-like approaches 7 are designed in such a way that pressure plates 30 can be placed on these foot-like approaches.
  • These pressure plates 30 have screw openings 31, for example, through which screws can be inserted.
  • the washers 2 with the foot-like approaches 7 and washers 2 without such approaches are combined in such a way that the fastening screws in the screw openings 31 are not hindered, so that a vibrator of this type can be screwed directly onto a formwork.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)
EP91118827A 1990-11-02 1991-11-04 Vibrateur pour béton ou similaire Expired - Lifetime EP0483885B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE9015077U DE9015077U1 (de) 1990-11-02 1990-11-02 Rüttler für Beton o.dgl.
DE9015077U 1990-11-02

Publications (2)

Publication Number Publication Date
EP0483885A1 true EP0483885A1 (fr) 1992-05-06
EP0483885B1 EP0483885B1 (fr) 1995-08-09

Family

ID=6858955

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91118827A Expired - Lifetime EP0483885B1 (fr) 1990-11-02 1991-11-04 Vibrateur pour béton ou similaire

Country Status (2)

Country Link
EP (1) EP0483885B1 (fr)
DE (2) DE9015077U1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2715424A1 (fr) * 1994-01-21 1995-07-28 Quille Entreprise Procédé et dispositif pour contrôler la mise en Óoeuvre du béton dans un train de banches.

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR749490A (fr) * 1933-07-24
FR844060A (fr) * 1937-09-30 1939-07-18 Bosch Gmbh Robert Appareil pour le vibrage intérieur du béton et autres matériaux semblables
US4172986A (en) * 1978-04-21 1979-10-30 Okura Electric Industry Company, Ltd. Vibrator

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR749490A (fr) * 1933-07-24
FR844060A (fr) * 1937-09-30 1939-07-18 Bosch Gmbh Robert Appareil pour le vibrage intérieur du béton et autres matériaux semblables
US4172986A (en) * 1978-04-21 1979-10-30 Okura Electric Industry Company, Ltd. Vibrator

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
US-A-4 172 986 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2715424A1 (fr) * 1994-01-21 1995-07-28 Quille Entreprise Procédé et dispositif pour contrôler la mise en Óoeuvre du béton dans un train de banches.

Also Published As

Publication number Publication date
DE59106213D1 (de) 1995-09-14
EP0483885B1 (fr) 1995-08-09
DE9015077U1 (de) 1992-03-12

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