EP1338394A1 - Safety device for concrete mixers - Google Patents

Safety device for concrete mixers Download PDF

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Publication number
EP1338394A1
EP1338394A1 EP03003728A EP03003728A EP1338394A1 EP 1338394 A1 EP1338394 A1 EP 1338394A1 EP 03003728 A EP03003728 A EP 03003728A EP 03003728 A EP03003728 A EP 03003728A EP 1338394 A1 EP1338394 A1 EP 1338394A1
Authority
EP
European Patent Office
Prior art keywords
frame
safety device
concrete mixers
way
concrete
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.)
Withdrawn
Application number
EP03003728A
Other languages
German (de)
French (fr)
Inventor
Roberto Razzanelli
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.)
Omaer Macchine Edili E Stradali Srl
Original Assignee
Omaer Macchine Edili E Stradali Srl
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 Omaer Macchine Edili E Stradali Srl filed Critical Omaer Macchine Edili E Stradali Srl
Publication of EP1338394A1 publication Critical patent/EP1338394A1/en
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
    • B28C5/08—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions using driven mechanical means affecting the mixing
    • B28C5/18—Mixing in containers to which motion is imparted to effect the mixing
    • B28C5/1825—Mixers of the tilted-drum type, e.g. mixers pivotable about an axis perpendicular to the axis of rotation for emptying
    • B28C5/1856—Details or parts, e.g. drums
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/60—Safety arrangements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F29/00—Mixers with rotating receptacles

Definitions

  • the present invention refers to the field of blunging machines, in particular the present invention refers to a safety device for concrete mixers.
  • the concrete mixers normally employed for the preparation of cement are essentially composed by a mixer vessel, hereinafter named beaker, that is sustained by a carrying stick , which is connected to a driving apparatus.
  • the scope of the present invention is to overcome the above described problems providing means of increasing the safety of concrete mixers operators.
  • the safety device consists of a frame 10 that is shaped in such a way to be installed in the space between the carrying stick 11 of the concrete mixer and the external surface of the bottom of the beaker 12, filling said space completely, in order to prevent the operator to accidentally enter it.
  • the frame 10 is fixed to the carrying stick 11 by appropriate means such as screws, pressure joints or any other suitable fixing means.
  • the frame 10 can be made of any suitable material, for example metal, wood, plastic, rubber, a metal net etc.
  • the frame can be made of a single piece of material or it can be made of two or more pieces solidly or loosely assembled together in such a way to occupy the above described space completely, leaving enough room for the revolving mechanism.
  • the device according to the present invention will be made of plastic material or rubber, rigid or semirigid, since these materials are very easy to mould.
  • the frame 10 can be painted in the colors normally used to indicate danger warnings, in such a way to better signal its presence.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)

Abstract

A safety device that prevents possible accidents caused by the action of the beaker of concrete mixers is described.

Description

    FIELD OF INVENTION:
  • The present invention refers to the field of blunging machines, in particular the present invention refers to a safety device for concrete mixers.
    • STATE OF THE ART:
  • As it is well known, the concrete mixers normally employed for the preparation of cement are essentially composed by a mixer vessel, hereinafter named beaker, that is sustained by a carrying stick , which is connected to a driving apparatus.
  • The presence of moving parts exposes the operator to the risk of accidents. His hands, his arms or the tools that he handles can get stuck in between the moving beaker and its carrying stick.
    • SCOPE OF THE INVENTION:
  • The scope of the present invention is to overcome the above described problems providing means of increasing the safety of concrete mixers operators.
    • SUMMARY OF THE INVENTION:
  • The scope of the present invention has been achieved with a safety device as described in the following description and claimed in the main claim.
  • Further achievements have been claimed in the dependent claims.
    • LIST OF FIGURES:
  • The advantages achieved with the present invention will be understood by any skilled person in the art from the following description and from the annexed:
  • Fig. 1 showing the device according to the present invention installed on a concrete mixer (that is roughly sketched in the figure as well).
    • DETAILED DESCRIPTION
  • Referring to the enclosed Fig. 1, the safety device according to the present invention consists of a frame 10 that is shaped in such a way to be installed in the space between the carrying stick 11 of the concrete mixer and the external surface of the bottom of the beaker 12, filling said space completely, in order to prevent the operator to accidentally enter it.
  • The frame 10 is fixed to the carrying stick 11 by appropriate means such as screws, pressure joints or any other suitable fixing means.
  • The frame 10 can be made of any suitable material, for example metal, wood, plastic, rubber, a metal net etc.
  • The frame can be made of a single piece of material or it can be made of two or more pieces solidly or loosely assembled together in such a way to occupy the above described space completely, leaving enough room for the revolving mechanism.
  • Preferably, the device according to the present invention will be made of plastic material or rubber, rigid or semirigid, since these materials are very easy to mould.
  • If preferred, the frame 10, can be painted in the colors normally used to indicate danger warnings, in such a way to better signal its presence.

Claims (7)

  1. Safety device for concrete mixers consisting of a frame (10), shaped in such a way to be installed in the space between the carrying stick (11) of the concrete mixer and the external surface of the bottom of the beaker (12).
  2. Device according to claim 1 in which the frame (10) is made of plastic material or rubber.
  3. Device according to claim 2 in which the frame (10) is made of a single piece of material.
  4. Device according to claim 2 in which the frame (10) is made of two or more pieces solidly or loosely assembled together in such a way to completely occupy the space as defined in claim 1.
  5. Device according to claims 1 to 4 in which the frame (10) (or its component parts) are fixed to the carrying stick (11) by suitable fixing means.
  6. Device according to claim 5 in which said fixing means are screws or pressure joints.
  7. Device according to claims 1 to 6 colored in order to highlight its presence.
EP03003728A 2002-02-20 2003-02-19 Safety device for concrete mixers Withdrawn EP1338394A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITFI20020020 2000-02-08
IT2002FI000020U ITFI20020020U1 (en) 2002-02-20 2002-02-20 SAFETY DEVICE FOR CONCRETE MIXERS

Publications (1)

Publication Number Publication Date
EP1338394A1 true EP1338394A1 (en) 2003-08-27

Family

ID=29416190

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03003728A Withdrawn EP1338394A1 (en) 2002-02-20 2003-02-19 Safety device for concrete mixers

Country Status (2)

Country Link
EP (1) EP1338394A1 (en)
IT (1) ITFI20020020U1 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB780426A (en) * 1954-06-02 1957-07-31 Parker Ltd Frederick Improvements in concrete mixers
EP0369350A2 (en) * 1988-11-14 1990-05-23 Lescha Maschinenfabrik GmbH & Co. KG Mixer
US5118198A (en) * 1990-06-07 1992-06-02 Whiteman Marvin E Jr Cement mixing apparatus with cradle support assembly
EP0847841A1 (en) * 1996-12-12 1998-06-17 Etablissements Guy Noel Stackable concrete mixer

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB780426A (en) * 1954-06-02 1957-07-31 Parker Ltd Frederick Improvements in concrete mixers
EP0369350A2 (en) * 1988-11-14 1990-05-23 Lescha Maschinenfabrik GmbH & Co. KG Mixer
US5118198A (en) * 1990-06-07 1992-06-02 Whiteman Marvin E Jr Cement mixing apparatus with cradle support assembly
EP0847841A1 (en) * 1996-12-12 1998-06-17 Etablissements Guy Noel Stackable concrete mixer

Also Published As

Publication number Publication date
ITFI20020020U1 (en) 2003-08-20

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