EP0039848A2 - Means for clamping a toothed ring to a mixing drum, especially for tilting drum mixers - Google Patents

Means for clamping a toothed ring to a mixing drum, especially for tilting drum mixers Download PDF

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Publication number
EP0039848A2
EP0039848A2 EP81103303A EP81103303A EP0039848A2 EP 0039848 A2 EP0039848 A2 EP 0039848A2 EP 81103303 A EP81103303 A EP 81103303A EP 81103303 A EP81103303 A EP 81103303A EP 0039848 A2 EP0039848 A2 EP 0039848A2
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EP
European Patent Office
Prior art keywords
ring
drum
toothed ring
flange
tilting
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
EP81103303A
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German (de)
French (fr)
Other versions
EP0039848B1 (en
EP0039848A3 (en
Inventor
Erwin Karg
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.)
LEONHARD SCHMID KG
Original Assignee
LEONHARD SCHMID KG
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 LEONHARD SCHMID KG filed Critical LEONHARD SCHMID KG
Priority to AT81103303T priority Critical patent/ATE11116T1/en
Publication of EP0039848A2 publication Critical patent/EP0039848A2/en
Publication of EP0039848A3 publication Critical patent/EP0039848A3/en
Application granted granted Critical
Publication of EP0039848B1 publication Critical patent/EP0039848B1/en
Expired 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

Definitions

  • the invention relates to a gear rim holder on a radially outwardly projecting flange of a part of a mixing drum, in particular a tilting drum mixer for building materials or the like (DE-GB 1 881 080).
  • Such mixing drums consist of two drum parts drawn from sheet metal in a pot shape. The two parts lie against each other with their radially outwardly projecting flanges.
  • the two flanges can be bound together with screws, which are spaced all around at a suitable spacing, with the interposition of a sealing ring, which is preferably used when, for reasons of small transport volume, the two drum parts can be dismantled and are to be shipped separately and stacked one inside the other.
  • one of the two flanges can also be designed as a folded collar comprising the flange of the other drum part; this ensures a watertight connection of the two drum parts even without a seal (DE-GM 72 09 161).
  • the object on which the invention is based is aimed at creating a toothed ring holder which is precisely centered and flat both in the axial and in the radial direction, and ensures a stable position of the toothed ring which does not require screws, so that the toothed ring base body has the least amount possible dimensions can be reduced.
  • the ring gear can be made of cast iron, in particular cast iron, or plastic; it can also consist of a sheet metal gear rim. It can be closed into a ring or be composed of segments.
  • this object is achieved in that the flange of a gear rim holder of the type described in the introduction has a crank ring overlapping the gear rim base body and flanking on both sides, and in that in the outer flank of the gear rim at one or more locations of a tooth gap, a beveled recess is provided from the outside inwards , in which the adjacent part of the crank ring engages for mutual interlocking.
  • the outwardly projecting flange is expanded to a cranking ring which forms a U-profile in cross section, which has the desired planing and centering effect both in the axial and in the radial direction.
  • this self-contained cranking ring enables positive interlocking at more or less numerous points with recesses in the outer flank of the ring gear. Since these recesses are chamfered from the outside inwards, for which they are preferably located at the tooth base of a tooth gap, the hooking acts not only in the circumferential direction but also in the radial direction like a claw. The adjacent to this recess Batch of the crank ring does not need to completely fill the recess; rather, it can lie pressed in with arched transitions.
  • the number of hooking points can be distributed evenly over the circumference, for example, twelve.
  • the number naturally depends on the segment division, with at least two such hooks per segment being expediently provided.
  • the ring gear is thus also firmly embedded in the form of segments in the U-profile of the crank ring. Since the crank ring is an integral part of the round drum part, it is extremely stable as a carrier of the ring gear holder.
  • transitions of the web of the U-profile to its two legs contain arcuate beads. These beads cause further stiffening.
  • the mixing drum consists of a drum part 1 containing an opening 2 and a drum part 8 which carries an outwardly projecting central support pin 3 'which has its pivot bearing in a swivel bracket 4.
  • the swivel bracket 4 has a semicircular shape and carries at its two ends journal 5, on which it is pivoted or rotated through 360 ° in frame bearings, not shown.
  • a shaft with a pinion 6 is guided, which meshes with the sprocket 7 attached to the outer jacket of the mixing drum, via which the mixing drum is rotated about its central axis of rotation running through the axis line of the trunnion 3, if mixing is to take place what can be done in different swivel positions.
  • the finished mixture is emptied by swiveling into a correspondingly deep inclination of the opening 2.
  • Fig. 2 shows that both drum parts 1 and 8 drawn from sheet metal in a pot shape have a flange 9 and 10 projecting radially outwards.
  • a sealing ring 11 With the interposition of a sealing ring 11, the two flanges are flanged together by a number of screws 12 distributed over the circumference.
  • the flange 10 of the drum lower part 8 consisting of thicker sheet metal is extended to a crank ring 13 which overlaps the toothed ring base body of the toothed ring 7 and flanks on both sides. In cross section, this has a U-profile.
  • the transitions from its web to its two legs 14, 15 are designed in an arc shape by beads 16.
  • a recess 17 which is bevelled from the outside inwards is provided. It begins on the outside below the tooth base of a tooth gap 7 'and rises to just below the pitch circle 7 ".
  • the adjacent parts 18 of the outer leg 14 of the crank ring 13 are pressed into these recesses 17 for mutual hooking 17/18 - see also FIG. 4.
  • Kröpfun g sring 13 is part of the lower drum part 8, it can also be formed from the upper drum part 1 within the scope of the invention.
  • Fig. 3 differs from FIG. 2 only in that the flange 10 of the lower drum part 8 is also provided with a double folded collar 19, 20, which comprised the flange 9 of the upper drum part 1 before it forms the crank ring 13 ; thus the screw fastening 12 and the sealing ring 11 according to FIG. 2 can be dispensed with.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Mixers With Rotating Receptacles And Mixers With Vibration Mechanisms (AREA)
  • Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)

Abstract

1. Toothed ring support at a radially outwardly extending flange (10) of a part of a mixing drum, especially of a tilting drum mixing machine for building material or the like, characterized in that the flange (10) comprises a crimped ring (13) being U-shaped in cross section, covering the base body of the toothed ring (7) and abutting same at its outer as well as its inner periphery, and that in the outer flank of the toothed ring (7) at one or more spots and always in the area of a tooth space (7') a recess (17) bevelled from outside to inside is provided into which the adjacent part (18) of the crimped ring grips for mutual hooking engagement (17/18).

Description

Die Erfindung betrifft eine Zahnkranzhalterung an einem radial nach außen ragenden Flansch eines Teils einer Mischtrommel, insbesondere einer Kipptrommelmischmaschine für Baustoffe oder dergleichen (DE-GB 1 881 080). Solche Mischtrommeln bestehen aus zwei aus Blech topfförmig gezogenen Trommelteilen. Die beiden Teile liegen mit ihren radial nach außen ragenden Flanschen aneinander. Hier können die beiden Flansche unter Zwischenlage eines Dichtungsringes mit Schrauben, die in geeigneten Abständen ringsum verteilt liegen, zusammengebunden sein, was vorzugsweise angewendet wird, wenn aus Gründen eines geringen Transportvolumens die beiden Trommelteile zerlegbar sein und gesondert und ineinandergestapelt zum Versand kommen sollen. Einer der beiden Flansche kann aber auch als den Flansch des anderen Trommelteils umfassender Falzkragen ausgebildet sein; dies gewährleistet auch ohne Dichtung eine wasserdichte Verbindung der beiden Trommelteile (DE-GM 72 09 161).The invention relates to a gear rim holder on a radially outwardly projecting flange of a part of a mixing drum, in particular a tilting drum mixer for building materials or the like (DE-GB 1 881 080). Such mixing drums consist of two drum parts drawn from sheet metal in a pot shape. The two parts lie against each other with their radially outwardly projecting flanges. Here, the two flanges can be bound together with screws, which are spaced all around at a suitable spacing, with the interposition of a sealing ring, which is preferably used when, for reasons of small transport volume, the two drum parts can be dismantled and are to be shipped separately and stacked one inside the other. However, one of the two flanges can also be designed as a folded collar comprising the flange of the other drum part; this ensures a watertight connection of the two drum parts even without a seal (DE-GM 72 09 161).

Die der Erfindung zugrundeliegende Aufgabe ist darauf gerichtet, eine Zahnkranzhalterung zu schaffen, die sowohl in axialer als auch in radialer Richtung genau zentriert und plan ist, sowie eine stabile Haltung des Zahnkranzes gewährleistet, die ohne Schrauben auskommt, so daß der Zahnkranzgrundkörper auf die geringstmöglichen Abmessungen reduziert werden kann. Der Zahnkranz kann aus Guß, insbesondere Gußeisen, oder Kunststoff bestehen; er kann auch aus einem Blechzahnkranz bestehen. Er kann in sich zu einem Ring geschlossen oder aus Segmenten zusammengesetzt sein.The object on which the invention is based is aimed at creating a toothed ring holder which is precisely centered and flat both in the axial and in the radial direction, and ensures a stable position of the toothed ring which does not require screws, so that the toothed ring base body has the least amount possible dimensions can be reduced. The ring gear can be made of cast iron, in particular cast iron, or plastic; it can also consist of a sheet metal gear rim. It can be closed into a ring or be composed of segments.

Gemäß der Erfindung wird diese Aufgabe dadurch gelöst, daß der Flansch einer Zahnkranzhalterung der eingangs beschriebenen Art einen den Zahnkranzgrundkörper übergreifenden und beiderseits flankierenden Kröpfungsring aufweist und daß in der Außenflanke des Zahnkranzes an einer oder mehreren Stellen einer Zahnlücke eine von außen nach innen angeschrägte Ausnehmung vorgesehen ist, in welche die anliegende Partie des Kröpfungsringes zur gegenseitigen Verhakung greift.According to the invention, this object is achieved in that the flange of a gear rim holder of the type described in the introduction has a crank ring overlapping the gear rim base body and flanking on both sides, and in that in the outer flank of the gear rim at one or more locations of a tooth gap, a beveled recess is provided from the outside inwards , in which the adjacent part of the crank ring engages for mutual interlocking.

Bei der Erfindung ist der nach außen ragende Flansch zu einem Kröpfungsring erweitert, der im Querschnitt ein U-Profil bildet, welches die gewünschte Planhaltung und Zentrierwirkung sowohl in axialer als auch in radialer Richtung zur Folge hat. Außerdem ermöglicht dieser in sich ringsum geschlossene Kröpfungsring eine formschlüssige gegenseitige Verhakung an mehr oder weniger zahlreichen Stellen mit Ausnehmungen in der Außenflanke des Zahnkranzes. Da diese Ausnehmungen von außen nach innen angeschrägt sind, wofür sie vorzugsweise am Zahngrund einer Zahnlücke liegen, wirkt die Verhakung nicht nur in Umfangsrichtung, sondern auch in radialer Richtung wie eine Verkrallung. Die an dieser Ausnehmung anliegende Partie des Kröpfungsringes braucht die Ausnehmung keineswegs vollständig auszufüllen; vielmehr kann sie mit bogenförmigen übergängen hineingedrückt liegen. Die Zahl der Verhakungsstellen kann beispielsweise zwölf auf den Umfang gleichmäßig verteilt sein. Bei Unterteilung des Zahnkranzes in mehrere Segmente richtet sich die Zahl natürlich nach der SegmentAufteilung, wobei zweckmäßigerweise mindestens zwei solcher Verhakungen pro Segment vorgesehen werden. Der Zahnkranz liegt somit auch in Form von Segmenten fest eingebettet im U-Profil des Kröpfungsringes. Da der Kröpfungsring fester Bestandteil des in sich runden Trommelteils ist, ist er als Träger der Zahnkranzhalterung denkbar stabil.In the invention, the outwardly projecting flange is expanded to a cranking ring which forms a U-profile in cross section, which has the desired planing and centering effect both in the axial and in the radial direction. In addition, this self-contained cranking ring enables positive interlocking at more or less numerous points with recesses in the outer flank of the ring gear. Since these recesses are chamfered from the outside inwards, for which they are preferably located at the tooth base of a tooth gap, the hooking acts not only in the circumferential direction but also in the radial direction like a claw. The adjacent to this recess Batch of the crank ring does not need to completely fill the recess; rather, it can lie pressed in with arched transitions. The number of hooking points can be distributed evenly over the circumference, for example, twelve. When dividing the ring gear into several segments, the number naturally depends on the segment division, with at least two such hooks per segment being expediently provided. The ring gear is thus also firmly embedded in the form of segments in the U-profile of the crank ring. Since the crank ring is an integral part of the round drum part, it is extremely stable as a carrier of the ring gear holder.

Diese Eigenschaft kann weiter verstärkt werden, wenn gemäß einem weiteren Merkmal der Erfindung die übergänge des Steges des U-Profils zu seinen beiden Schenkeln bogenförmige Aussickungen enthalten. Diese Aussickungen bewirken eine weitere Versteifung.This property can be further enhanced if, according to a further feature of the invention, the transitions of the web of the U-profile to its two legs contain arcuate beads. These beads cause further stiffening.

Zwei Ausführungsbeispiele der Zahnkranzhalterung gemäß der Erfindung sind in den Zeichnungen dargestellt.Two embodiments of the ring gear holder according to the invention are shown in the drawings.

Es zeigt:

  • Fig. 1 eine Gesamtansicht einer Mischtrommel in ihrer Halterung,
  • Fig. 2 einen Ausschnitt der Zahnkranzhalterung bei zerlegbarer Trommel,
  • Fig. 3 einen Ausschnitt entsprechend Fig. 2 bei unzerlegbarer Trommel,
  • Fig. 4 eine Draufsicht von unten auf den Zahnkranz,
  • Fig. 5 eine Ansicht von der Außenseite
It shows:
  • 1 is an overall view of a mixing drum in its holder,
  • 2 shows a section of the ring gear holder when the drum can be dismantled,
  • 3 shows a section corresponding to FIG. 2 with a drum which cannot be dismantled,
  • 4 is a bottom plan view of the ring gear,
  • Fig. 5 is a view from the outside

Die Mischtrommel besteht aus einem eine öffnung 2 enthaltenden Trommelteil 1 und einem Trommelteil 8, der einen nach außen ragenden zentralen Tragzapfen 3' trägt, der in einem Schwenkbügel 4 sein Drehlager hat. Der Schwenkbügel 4 besitzt eine Halbbogenform und trägt an seinen beiden Enden Achszapfen 5, an denen er in nicht dargestellten Gestell-Lagern schwenkbar bzw. um 360° drehbar gelagert ist. Durch den einen Achszapfen 5 ist eine Welle mit einem Zahnritzel 6 geführt, das mit dem an dem Außenmantel der Mischtrommel befestigten Zahnkranz 7 kämmt, über den die Mischtrommel um ihre zentrale, durch die Achslinie des Tragzapfens 3 verlaufende Drehachslinie gedreht wird, wenn gemischt werden soll, was in verschiedenen Schwenklagen erfolgen kann. Das Entleeren der fertigen Mischung erfolgt durch Schwenken in eine entsprechend tiefe Neigungslage der öffnung 2.The mixing drum consists of a drum part 1 containing an opening 2 and a drum part 8 which carries an outwardly projecting central support pin 3 'which has its pivot bearing in a swivel bracket 4. The swivel bracket 4 has a semicircular shape and carries at its two ends journal 5, on which it is pivoted or rotated through 360 ° in frame bearings, not shown. Through the one axle pin 5, a shaft with a pinion 6 is guided, which meshes with the sprocket 7 attached to the outer jacket of the mixing drum, via which the mixing drum is rotated about its central axis of rotation running through the axis line of the trunnion 3, if mixing is to take place what can be done in different swivel positions. The finished mixture is emptied by swiveling into a correspondingly deep inclination of the opening 2.

Fig. 2 zeigt, daß beide aus Blech topfförmig gezogenen Trommelteile 1 und 8 einen radial nach außen ragenden Flansch.9 bzw. 10 aufweisen. Unter Zwischenschaltung eines Dichtungsringes 11 sind die beiden Flansche durch eine Anzahl über den Umfang verteilter Schrauben 12 zusammengeflanscht. Der Flansch 10 des aus dickerem Blech bestehenden Trommelunterteils 8 ist zu einem den Zahnkranzgrundkörper des Zahnkranzes 7 übergreifenden und beiderseits flankierenden Kröpfungsring 13 erweitert. Im Querschnitt hat dieser ein U-Profil. Die Übergänge von seinem Steg zu seinen beiden Schenkeln 14, 15 sind durch Aussickungen 16 bogenförmig gestaltet. In der Außenflanke des Zahnkranzes 7 ist an einer oder mehreren SteLlen des Zahngrundes einer Zahnlücke 7', wie Fig. 5 deutlich macht, eine von außen nach innen angeschrägte Ausnehmung 17 vorgesehen. Sie beginnt außen unterhalb des Zahngrundes einer Zahnlücke 7' und steigt bis knapp unter den Teilkreis 7". In diese Ausnehmungen 17 sind die anliegenden Partien 18 des Außenschenkels 14 des Kröpfungsringes 13 zur gegenseitigen Verhakung 17/18 eingedrückt - siehe auch Fig. 4.Fig. 2 shows that both drum parts 1 and 8 drawn from sheet metal in a pot shape have a flange 9 and 10 projecting radially outwards. With the interposition of a sealing ring 11, the two flanges are flanged together by a number of screws 12 distributed over the circumference. The flange 10 of the drum lower part 8 consisting of thicker sheet metal is extended to a crank ring 13 which overlaps the toothed ring base body of the toothed ring 7 and flanks on both sides. In cross section, this has a U-profile. The transitions from its web to its two legs 14, 15 are designed in an arc shape by beads 16. In the outer flank of the ring gear 7, at one or more points of the tooth base of a tooth gap 7 ', as shown in FIG. 5, a recess 17 which is bevelled from the outside inwards is provided. It begins on the outside below the tooth base of a tooth gap 7 'and rises to just below the pitch circle 7 ". The adjacent parts 18 of the outer leg 14 of the crank ring 13 are pressed into these recesses 17 for mutual hooking 17/18 - see also FIG. 4.

Wenn auch der Kröpfungsring 13 gemäß dem Ausführungsbeispiel der Fig. 2 Bestandteil des Trommelunterteils 8 ist, kann er im Rahmen der Erfindung ebenso auch aus dem Trommeloberteil 1 geformt sein.If the Kröpfun g sring 13 according to the embodiment of FIG. 2 is part of the lower drum part 8, it can also be formed from the upper drum part 1 within the scope of the invention.

Fig. 3 unterscheidet sich von der Fig. 2 nur dadurch, daß der Flansch 10 des Trommel-Unterteils 8 noch mit einem Doppel-Falzkragen 19, 20 versehen ist, der den Flansch 9 des Trommel-Oberteils 1 umfaßte bevor er den Kröpfungsring 13 bildet; damit lassen sich die Schraubenbefestigung 12 und der Dichtungsring 11 nach Fig. 2 erübrigen.Fig. 3 differs from FIG. 2 only in that the flange 10 of the lower drum part 8 is also provided with a double folded collar 19, 20, which comprised the flange 9 of the upper drum part 1 before it forms the crank ring 13 ; thus the screw fastening 12 and the sealing ring 11 according to FIG. 2 can be dispensed with.

Claims (2)

1. Zahnkranzhalterung an einem radial nach außen ragenden Flansch eines Teils einer Mischtrommel, insbesondere einer Kipptrommelmischmaschine für Baustoffe oder dergleichen, dadurch gekennzeichnet , daß der Flansch (10) einen den Zahnkranzgrundkörper übergreifenden und beiderseits flankierenden Kröpfungsring (13) aufweist und daß in der Außenflanke des Zahnkranzes (7) an einer oder mehreren Stellen einer Zahnlücke (7') eine von außen nach innen angeschrägte Ausnehmung (17) vorgesehen ist, in welche die anliegende Partie (18) des Kröpfungsringes zur gegenseitigen Verhakung (17/18) greift.1. sprocket bracket on a radially outwardly projecting flange of a part of a mixing drum, in particular a tilting drum mixer for building materials or the like, characterized in that the flange (10) has a crown ring body overlapping and flanking on both sides and a cranking ring (13) and that in the outer flank of the Toothed ring (7) at one or more points of a tooth gap (7 ') is provided a recess (17) which is bevelled from the outside in, into which the adjacent part (18) of the cranking ring engages for mutual interlocking (17/18). 2. Zahnkranzhalterung nach Anspruch 1, dadurch gekennzeichnet , daß die übergänge von dem Steg des U-Profils des Querschnitts des Kröpfungsringes (13) zu seinen beiden Schenkeln (14, 15) Aussickunqen (16) enthalten.2. Sprocket holder according to claim 1, characterized in that the transitions from the web of the U-profile of the cross section of the crank ring (13) to its two legs (14, 15) contain Aussickunqen (16).
EP81103303A 1980-05-09 1981-05-02 Means for clamping a toothed ring to a mixing drum, especially for tilting drum mixers Expired EP0039848B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT81103303T ATE11116T1 (en) 1980-05-09 1981-05-02 SPROCKET HOLDER ON THE MIXING DRUM, ESPECIALLY A TILTING DRUM MIXING MACHINE.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3017770 1980-05-09
DE3017770A DE3017770C2 (en) 1980-05-09 1980-05-09 Gear rim holder for a mixing drum, in particular a tilting drum mixer

Publications (3)

Publication Number Publication Date
EP0039848A2 true EP0039848A2 (en) 1981-11-18
EP0039848A3 EP0039848A3 (en) 1982-12-08
EP0039848B1 EP0039848B1 (en) 1985-01-09

Family

ID=6101983

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81103303A Expired EP0039848B1 (en) 1980-05-09 1981-05-02 Means for clamping a toothed ring to a mixing drum, especially for tilting drum mixers

Country Status (3)

Country Link
EP (1) EP0039848B1 (en)
AT (1) ATE11116T1 (en)
DE (1) DE3017770C2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4756623A (en) * 1985-10-03 1988-07-12 Bishop Robert J Collapsible mixing drum
GB2223182A (en) * 1988-10-03 1990-04-04 Double M Ind Limited Concrete mixer

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR527324A (en) * 1920-11-15 1921-10-24 Marius Delaville Multi-part rim fastening system for gear wheels
GB250801A (en) * 1925-07-24 1926-04-22 Asa Lees & Company Ltd Improvements in or relating to gear wheels
DE1557207A1 (en) * 1967-12-22 1970-03-12 Rolf Susemihl Transportable, dismountable mixer
DE1817037A1 (en) * 1968-12-27 1970-08-27 Rolf Susemihl Drum for mixing solid and/or liquid compon- - ents
FR2117378A5 (en) * 1970-12-04 1972-07-21 Susemihl Rolf
DE2504522A1 (en) * 1975-02-04 1976-08-05 Rolf Susemihl Plastic insert for steel drum mixer - is seamless moulding fitting into base and forming upper part

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1881080U (en) * 1963-08-01 1963-10-17 Voegele Ag J MIXING DRUM, IN PARTICULAR FOR MOBILE CONCRETE OR MORTAR MIXERS.
DE7209161U (en) * 1972-03-10 1972-06-15 Leonhard Schmid KG, 8900 Augsburg; B28c 5^2 MIXING DRUM ON TILTING DRUM MIXING MACHINES FOR BUILDING MATERIALS OR DGL.

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR527324A (en) * 1920-11-15 1921-10-24 Marius Delaville Multi-part rim fastening system for gear wheels
GB250801A (en) * 1925-07-24 1926-04-22 Asa Lees & Company Ltd Improvements in or relating to gear wheels
DE1557207A1 (en) * 1967-12-22 1970-03-12 Rolf Susemihl Transportable, dismountable mixer
DE1817037A1 (en) * 1968-12-27 1970-08-27 Rolf Susemihl Drum for mixing solid and/or liquid compon- - ents
FR2117378A5 (en) * 1970-12-04 1972-07-21 Susemihl Rolf
DE2504522A1 (en) * 1975-02-04 1976-08-05 Rolf Susemihl Plastic insert for steel drum mixer - is seamless moulding fitting into base and forming upper part

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4756623A (en) * 1985-10-03 1988-07-12 Bishop Robert J Collapsible mixing drum
GB2223182A (en) * 1988-10-03 1990-04-04 Double M Ind Limited Concrete mixer

Also Published As

Publication number Publication date
DE3017770C2 (en) 1982-04-22
DE3017770A1 (en) 1981-11-19
EP0039848B1 (en) 1985-01-09
EP0039848A3 (en) 1982-12-08
ATE11116T1 (en) 1985-01-15

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