EP0755704B1 - Centering bell for a bowling pin setter - Google Patents

Centering bell for a bowling pin setter Download PDF

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Publication number
EP0755704B1
EP0755704B1 EP96112003A EP96112003A EP0755704B1 EP 0755704 B1 EP0755704 B1 EP 0755704B1 EP 96112003 A EP96112003 A EP 96112003A EP 96112003 A EP96112003 A EP 96112003A EP 0755704 B1 EP0755704 B1 EP 0755704B1
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EP
European Patent Office
Prior art keywords
bell
centering
recesses
bell body
centering bell
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 - Lifetime
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EP96112003A
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German (de)
French (fr)
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EP0755704A1 (en
Inventor
Hans Hutzel
Ernst Beck
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Vollmer Werke Maschinenfabrik GmbH
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Vollmer Werke Maschinenfabrik GmbH
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Publication of EP0755704A1 publication Critical patent/EP0755704A1/en
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    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63DBOWLING GAMES, e.g. SKITTLES, BOCCE OR BOWLS; INSTALLATIONS THEREFOR; BAGATELLE OR SIMILAR GAMES; BILLIARDS
    • A63D5/00Accessories for bowling-alleys or table alleys
    • A63D5/08Arrangements for setting-up or taking away pins
    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63DBOWLING GAMES, e.g. SKITTLES, BOCCE OR BOWLS; INSTALLATIONS THEREFOR; BAGATELLE OR SIMILAR GAMES; BILLIARDS
    • A63D5/00Accessories for bowling-alleys or table alleys
    • A63D5/08Arrangements for setting-up or taking away pins
    • A63D2005/083Threaded pins

Definitions

  • the invention relates to a centering bell for a taper setting machine according to the preamble of claim 1.
  • Such Centering bell is e.g. known from DE-A-1 603 038.
  • DE-A-1 157 120 describes a centering hood for a cone centering device, the centering hood by four by 90 ° staggered bracket 4 is formed, the top by a Cover plate and below are held together by a ring. Elongated holes are provided in the brackets 4, in which means of a bolt a sheet metal tab is adjustable, the one at the bottom with a welded round bar for changing the clear width of the centering hood is provided.
  • the Sheet metal tabs are slidable between spacing blocks are welded onto the brackets.
  • the centering bell made of relatively soft plastic material, the extended frustoconically upwards from the receiving opening is.
  • plastic top with almost spherical rounded upper boundary wall into which a separate plastic part is used with the rope guide roller. Because of that Height of enlarged diameter of the bell body can this Centering bell not made in one piece by injection molding be, which is why the upper and lower part of the bell body separately trained and by means of screws together and on the Plate of the setting machine to be attached.
  • This in the middle part bulbous design of the bell body leads in connection with a separately attached stop made of soft material for the cone head and a separately attached centering ring made of relatively soft material at the receiving opening effective sound absorption when pulling in a cone.
  • the invention has for its object a centering bell, which can also consist of hard, wear-resistant plastic, to be trained in such a way that with simple means effective noise reduction is reached when pulling in a cone.
  • the centering bell shown in Fig. 1 consists of a one-piece plastic body made by injection molding.
  • the bell body 1 has an in the middle and lower part essentially cylindrical wall section on which a frustoconical section that tapers upwards, the smaller in a cylindrical section Diameter passes, the top by obliquely inward Wall sections is closed and a hole 2 (Fig. 4) for the passage of the pull rope.
  • On the top are spaced flanges 3 formed between which one Not shown rope pulley is used, the axis in Bores 4 is used in the flanges 3. At 5 are across to the flanges 3 stiffening ribs on the top molded.
  • the lower section, slightly enlarged towards the outside the bell body 1 is arranged at three at the same angular distance
  • Set the circumference with radially outward extending Wall sections 6 provided in the cross-sectional view 2 are approximately triangular and one Enclose hole 7, which is approximately over the lower half of the cylindrical portion of the bell body and essentially extends parallel to the axis of the bell body.
  • These holes 7 serve to receive fastening screws 8 (FIG. 5), by means of which the centering bell is attached to a plate 9 the upper section of the centering bell a hole extends in the plate and the end faces of the Place wall sections 6 on the underside of the panel.
  • a centering ring 10 on the bell body by means of the screws 8 1 attached made of a resistant plastic material exists and the receiving opening of the bell body 1 surrounds.
  • This centering ring 10 can be replaced if a centering ring with e.g. smaller or larger diameter is needed for a slimmer or thicker cone, or if by the abrasive on the centering ring 10 pull rope Wear occurs.
  • With 11 are radial stiffening ribs in the approximately U-shaped cross-section Centering ring 10 designated.
  • the centering bell made of a hard, wear-resistant plastic material is produced by injection molding in one molding process.
  • the Recesses 12 from about half the height of the bell body into the frustoconical section above, with the The extent of four such recesses 12 which are elongated upwards are provided.
  • the recesses on the circumference of the bell body can also have a different shape and are arranged differently than shown become. So the cutouts can also be found in the lower ones Extend section of the bell body 1. It is also the provision of such recesses 12 not on the form shown and described a centering bell is limited, rather such recesses also provided in other known embodiments are, for example in the multi-part described above Embodiment of a centering bell.
  • the arrangement and shape The recesses can be depending on the design of the centering bell be formed.
  • the one shown in the drawing Centering bell are 3 due to the existing flanges and stiffening ribs 5 on the circumference four recesses 12 are provided. With a different design of the centering bell can also multiple cutouts or less, but larger cutouts be provided.
  • the recesses 12 are preferably in the section of the Bell body 1 is provided which has a large diameter. It is also possible to make additional cutouts in the narrower Provide the upper part of the centering bell. In the same way you can distributed over the length of the centering bell several Openings or recesses are provided, as far as this the stability of the centering bell is not impaired.
  • the stability can correspond to the ribs 13 the inner circumference also stiffening ribs on the outer circumference of the Bell body 1 can be provided if by the surface of the Recesses the remaining webs on the bell body 1 the would no longer guarantee the required stability.
  • the centering bell shown in the drawing can thereby be trained in a simple manner that in the existing Form of the centering bell in the axial direction from above are used, which when molding the centering bell by injection molding the recesses shown in the drawing 12 result. It is thus done with the simplest of means and an unexpectedly strong reduction accordingly inexpensively the noise level reached.

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  • Sanitary Device For Flush Toilet (AREA)
  • Walking Sticks, Umbrellas, And Fans (AREA)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Telephone Function (AREA)
  • Tires In General (AREA)
  • Sewing Machines And Sewing (AREA)
  • Outer Garments And Coats (AREA)
  • Automobile Manufacture Line, Endless Track Vehicle, Trailer (AREA)
  • Stringed Musical Instruments (AREA)
  • Reinforcement Elements For Buildings (AREA)
  • Motor Or Generator Frames (AREA)
  • Wind Motors (AREA)
  • Push-Button Switches (AREA)
  • Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
  • Suspension Of Electric Lines Or Cables (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)

Abstract

The plastics bell body (1) has apertures (12) between the top and bottom parts of the bell spread evenly round the circumference to reduce the noise when the skittle is drawn up into the bell. The recesses can be formed on the section of the bell body having a larger diameter. The recesses extend in the axial direction of the bell. Reinforcement ribs are provided on the inner and/or outer circumference of the bell to reinforce the bell around the sections between the recesses.

Description

Die Erfindung betrifft eine Zentrierglocke für eine Kegelstellmaschine nach dem Oberbegriff des Anspruchs 1. Eine solche Zentrierglocke ist z.B. aus DE-A-1 603 038 bekannt.The invention relates to a centering bell for a taper setting machine according to the preamble of claim 1. Such Centering bell is e.g. known from DE-A-1 603 038.

DE-A-1 157 120 beschreibt eine Zentrierhaube für eine Kegelzentriervorrichtung, wobei die Zentrierhaube durch vier um 90° zueinander versetzte Bügel 4 gebildet wird, die oben durch eine Deckplatte und unten durch einen Ring zusammengehalten werden. In den Bügeln 4 sind Langlöcher vorgesehen, in denen mittels eines Schraubenbolzens ein Blechlappen verstellbar ist, der am unteren Rand mit einem angeschweißten Rundstab zum Verändern der lichten Weite der Zentrierhaube versehen ist. Die Blechlappen sind zwischen Abstandsklötzen verschiebbar, die auf den Bügeln aufgeschweißt sind. DE-A-1 157 120 describes a centering hood for a cone centering device, the centering hood by four by 90 ° staggered bracket 4 is formed, the top by a Cover plate and below are held together by a ring. Elongated holes are provided in the brackets 4, in which means of a bolt a sheet metal tab is adjustable, the one at the bottom with a welded round bar for changing the clear width of the centering hood is provided. The Sheet metal tabs are slidable between spacing blocks are welded onto the brackets.

Zentrierglocken sind bei einer Kegelstellmaschine über dem Kegelfeld an einer Platte angebracht. Nach Beendigung eines Spiels werden die gefallenen und stehengebliebenen Kegel durch Zugseile in die Zentrierglocken eingezogen, worauf sie aus den Zentrierglocken wieder auf das Kegelfeld abgesetzt werden. Beim Einziehen der Kegel in die Zentrierglocken ergibt sich eine beträchtliche Geräuschentwicklung dadurch, daß die Kegel an den Glockenkörper anschlagen, der aus Verschleißgründen aus hartem, widerstandsfähigem Material besteht. Wenn die Zugseile gefallener Kegel verwickelt sind, werden sie erst im Verlaufe des Einziehens der Kegel voneinander gelöst, wobei häufig ein starker Ruck auftritt, durch den die Geräuschentwicklung beim Anschlagen der Kegel an der Zentrierglocke noch verstärkt wird. Am Ende der Einzugsbewegung schlägt der Kegelkopf an einem Anschlag am oberen Ende der Zentrierglocke an.Centering bells are over on a taper setting machine the cone field attached to a plate. After completing a In the game, the fallen and stopped cones are played through Pull ropes pulled into the centering bells, whereupon they come out of the Centering bells are placed back on the cone field. At the Pulling the cone into the centering bell results in a considerable noise because the cones on the Strike the bell body, which is made of hard, resistant material. When the pull ropes fall Cones are entangled, they become only in the course of pulling in the cone separated from each other, often a strong one Jerk occurs due to the noise when struck the cone on the centering bell is reinforced. At the end of The conical head strikes a stop at the stop at the top End of the centering bell.

Aufgrund der Forderung nach Reduzierung der Geräuschentwicklung solcher Kegelstellmaschinen wurden verschiedene Versuche unternommen, eine wirksame Schalldämpfung an Zentrierglocken aus Kunststoff zu erreichen.Because of the demand for noise reduction of such cone setting machines, various attempts have been made effective sound absorption on centering bells Plastic.

Bei einer bekannten Ausführungsform besteht der untere Abschnitt der Zentrierglocke aus relativ weichem Kunststoffmaterial, das von der Aufnahmeöffnung aus nach oben kegelstumpfförmig erweitert ist. Es schließt sich ein sich nach oben etwas verjüngendes Oberteil aus Kunststoff mit nahezu kugelförmig abgerundeter oberer Begrenzungswand an, in die ein separates Kunststoffteil mit der Seilführungsrolle eingesetzt ist. Wegen des auf halber Höhe vergrößerten Durchmessers des Glockenkörpers kann diese Zentrierglocke nicht einstückig durch Spritzgießen hergestellt werden, weswegen Ober- und Unterteil des Glockenkörpers gesondert ausgebildet und mittels Schrauben miteinander und an der Platte der Stellmaschine befestigt werden. Diese im Mittelteil bauchige Gestaltung des Glockenkörpers führt in Verbindung mit einem gesondert angebrachten Anschlag aus weichem Material für den Kegelkopf und einem ebenfalls gesondert angebrachten Zentrierring aus relativ weichem Material an der Aufnahmeöffnung zu einer wirksamen Schalldämpfung beim Einziehen eines Kegels. Da das Zugseil eines Kegels über den Rand der Aufnahmeöffnung gezogen wird und dadurch ein erheblicher Verschleiß an der Zentrierglocke auftritt, ist bei dieser bekannten Ausführungsform aufgrund des relativ weichen Materials des Zentrierrings an der Aufnahmeöffnung ein gesonderter Stahlring eingelegt, der den Zentrierring versteift und den Rand der Aufnahmeöffnung des Glockenkörpers vor frühzeitigem Verschleiß schützt. Durch diese bekannte Ausführungsform wird zwar eine gute Schalldämpfung erzielt, allerdings unter Inkaufnahme eines aufwendigen, aus mehreren Einzelteilen bestehenden Aufbaus, der in der Herstellung und Montage entsprechend teuer ist.In a known embodiment there is the lower section the centering bell made of relatively soft plastic material, the extended frustoconically upwards from the receiving opening is. There is something tapering upwards Plastic top with almost spherical rounded upper boundary wall into which a separate plastic part is used with the rope guide roller. Because of that Height of enlarged diameter of the bell body can this Centering bell not made in one piece by injection molding be, which is why the upper and lower part of the bell body separately trained and by means of screws together and on the Plate of the setting machine to be attached. This in the middle part bulbous design of the bell body leads in connection with a separately attached stop made of soft material for the cone head and a separately attached centering ring made of relatively soft material at the receiving opening effective sound absorption when pulling in a cone. There the pulling rope of a cone pulled over the edge of the receiving opening and therefore considerable wear on the centering bell occurs, is due to this known embodiment of the relatively soft material of the centering ring on the Receiving opening inserted a separate steel ring that the Centering ring stiffened and the edge of the receiving opening of the Bell body protects against premature wear. Through this known embodiment is good sound attenuation achieved, but at the expense of an elaborate several individual parts of the existing structure, which is in the manufacture and assembly is correspondingly expensive.

Die in der Zeichnung wiedergegebene Ausführungsform einer schlanken, einstückigen Zentrierglocke aus hartem Kunststoffmaterial ist mit einem geschlossenwandigen Glockenkörper seit langem bekannt und in Gebrauch. Es wurde versucht, eine Schalldämpfung dadurch zu erreichen, daß der Glockenkörper mit einem schallschluckenden Material wie Schaumstoff umgeben wurde. Dies führte aber nicht zu einer nennenswerten Schalldämpfung. Das Anbringen eines weichen Materials innen am Anschlag des Kegelkopfes brachte nur eine Reduzierung des Anschlaggeräusches des Kegelkopfes, nicht aber der wesentlich stärkeren Geräuschentwicklung beim Anschlagen des Kegels an der Glockenwand. Ebensowenig brachte ein weiches Material für den Zentrierring an der Aufnahmeöffnung eine spürbare Verbesserung.The embodiment shown in the drawing slim, one-piece centering bell made of hard plastic material has been with a closed-walled bell body long known and in use. An attempt was made to reduce noise to achieve that the bell body with a sound-absorbing material such as foam was surrounded. This but did not result in any significant noise reduction. The Attach a soft material to the inside of the cone head stop brought only a reduction in the impact noise of the Cone head, but not the much stronger noise when striking the cone on the bell wall. Just as little brought a soft material for the centering ring on the Opening a noticeable improvement.

Der Erfindung liegt die Aufgabe zugrunde, eine Zentrierglocke, die auch aus hartem, verschleißfestem Kunststoff bestehen kann, so auszubilden, daß mit einfachen Mitteln eine wirksame Geräuschdämpfung beim Einziehen eines Kegels erreicht wird.The invention has for its object a centering bell, which can also consist of hard, wear-resistant plastic, to be trained in such a way that with simple means effective noise reduction is reached when pulling in a cone.

Diese Aufgabe wird erfindungsgemäß durch die Merkmale im kennzeichnenden Teil des Anspruchs 1 gelöst.This object is achieved by the features in the characterizing part of claim 1.

Durch diese einfache Maßnahme wird in überraschender Weise eine gute Schalldämpfung erreicht. Auch bei einem mit Rücksicht auf Verschleiß harten Kunststoff, der beim Anschlagen eines Kegels besonders laute Geräusche abgibt, wird durch Aussparungen am Glockenkörper in nicht vorhersehbarer Weise eine Reduktion der Geräuschentwicklung erzielt, die der verminderten Geräuschentwicklung bei der zuvor beschriebenen aufwendigen Ausführungsform entspricht.This simple measure surprisingly becomes a good sound absorption achieved. Even with respect Wear hard plastic that when hitting a cone makes particularly loud noises, is cut out on Bell body unpredictably a reduction in the Noise achieved, that of reduced noise in the complex embodiment described above corresponds.

Die Erfindung wird beispielsweise anhand der Zeichnung näher erläutert. Es zeigen

Fig. 1
eine Seitenansicht einer Zentrierglocke,
Fig. 2
einen Querschnitt längs der Linie A-A in Fig. 1,
Fig. 3
einen Längsschnitt längs der Linie B-B in Fig. 2,
Fig. 4
eine Draufsicht auf die Zentrierglocke nach Fig. 5, und
Fig. 5
in einer teilweise aufgeschnittenen Seitenansicht eine an einer Platte montierte Zentrierglocke,
The invention is explained in more detail for example with reference to the drawing. Show it
Fig. 1
a side view of a centering bell,
Fig. 2
2 shows a cross section along the line AA in FIG. 1,
Fig. 3
2 shows a longitudinal section along the line BB in FIG. 2,
Fig. 4
a plan view of the centering bell of FIG. 5, and
Fig. 5
in a partially cut-away side view a centering bell mounted on a plate,

Die in Fig. 1 wiedergegebene Zentrierglocke besteht aus einem einteiligen, durch Spritzgießen hergestellten Kunststoffkörper. Der Glockenkörper 1 weist im mittleren und unteren Teil einen im wesentlichen zylindrischen Wandabschnitt auf, an den sich ein kegelstumpfförmiger, sich nach oben verjüngender Abschnitt anschließt, der in einen wiederum zylindrischen Abschnitt kleineren Durchmessers übergeht, der oben durch schräg nach innen verlaufende Wandabschnitte geschlossen ist und eine Bohrung 2 (Fig. 4) für den Durchtritt des Zugseils aufweist. Am Oberteil sind beabstandete Flansche 3 angeformt, zwischen denen eine nicht dargestellte Seilrolle eingesetzt wird, deren Achse in Bohrungen 4 in den Flanschen 3 eingesetzt wird. Bei 5 sind quer zu den Flanschen 3 verlaufende Versteifungsrippen am Oberteil angeformt. Der untere, nach außen leicht erweiterte Abschnitt des Glockenkörpers 1 ist an drei in gleichem Winkelabstand angordneten Stellen des Umfangs mit radial nach außen sich erstreckenden Wandabschnitten 6 versehen, die in der Querschnittsansicht nach Fig. 2 etwa dreieckförmig angeformt sind und eine Bohrung 7 umschließen, die sich etwa über die untere Hälfte des zylindrischen Abschnitts des Glockenkörpers und im wesentlichen parallel zur Achse des Glockenkörpers erstreckt. Diese Bohrungen 7 dienen zur Aufnahme von Befestigungsschrauben 8 (Fig. 5), mittels denen die Zentrierglocke an einer Platte 9 befestigt wird, wobei sich der obere Abschnitt der Zentrierglocke durch eine Bohrung in der Platte erstreckt und die Stirnseiten der Wandabschnitte 6 an der Plattenunterseite anliegen. Zugleich wird mittels der Schrauben 8 ein Zentrierring 10 am Glockenkörper 1 befestigt, der aus einem widerstandsfähigen Kunststoffmaterial besteht und die Aufnahmeöffnung des Glockenkörpers 1 umgibt. Dieser Zentrierring 10 kann ausgewechselt werden, wenn ein Zentrierring mit z.B. kleinerem oder größerem Durchmesser für einen schlankeren oder dickeren Kegel benötigt wird, oder wenn durch das an dem Zentrierring 10 scheuernde Zugseil ein Verschleiß auftritt. Mit 11 sind radial verlaufende Versteifungsrippen in dem im Querschnitt etwa U-förmig gestalteten Zentrierring 10 bezeichnet.The centering bell shown in Fig. 1 consists of a one-piece plastic body made by injection molding. The bell body 1 has an in the middle and lower part essentially cylindrical wall section on which a frustoconical section that tapers upwards, the smaller in a cylindrical section Diameter passes, the top by obliquely inward Wall sections is closed and a hole 2 (Fig. 4) for the passage of the pull rope. On the top are spaced flanges 3 formed between which one Not shown rope pulley is used, the axis in Bores 4 is used in the flanges 3. At 5 are across to the flanges 3 stiffening ribs on the top molded. The lower section, slightly enlarged towards the outside the bell body 1 is arranged at three at the same angular distance Set the circumference with radially outward extending Wall sections 6 provided in the cross-sectional view 2 are approximately triangular and one Enclose hole 7, which is approximately over the lower half of the cylindrical portion of the bell body and essentially extends parallel to the axis of the bell body. These holes 7 serve to receive fastening screws 8 (FIG. 5), by means of which the centering bell is attached to a plate 9 the upper section of the centering bell a hole extends in the plate and the end faces of the Place wall sections 6 on the underside of the panel. At the same time is a centering ring 10 on the bell body by means of the screws 8 1 attached made of a resistant plastic material exists and the receiving opening of the bell body 1 surrounds. This centering ring 10 can be replaced if a centering ring with e.g. smaller or larger diameter is needed for a slimmer or thicker cone, or if by the abrasive on the centering ring 10 pull rope Wear occurs. With 11 are radial stiffening ribs in the approximately U-shaped cross-section Centering ring 10 designated.

Der beschriebene Aufbau der Zentrierglocke mit geschlossener Wand des Glockenkörpers ist an sich bekannt, wobei die Zentrierglocke aus einem harten, verschleißfesten Kunststoffmaterial durch Spritzgießen in einem Formvorgang hergestellt wird.The described structure of the centering bell with the closed Wall of the bell body is known per se, the centering bell made of a hard, wear-resistant plastic material is produced by injection molding in one molding process.

Nachdem die aus hartem Kunststoff bestehende Zentrierglocke beim Einziehen eines Kegels sehr laute Schlaggeräusche abgab und eine Ummantelung des Glockenkörpers aus schallschluckendem Schaumstoffmaterial zu keiner nennenswerten Verminderung der Geräuschentwicklung führte, wurden auf dem Umfang des Glockenkörpers 1 im Bereich des Oberteils über den Umfang verteilt Ausnehmungen oder Aussparungen 12 ausgebildet, die ohne weitere Änderungen an der Zentrierglocke zu einer beträchtlichen Reduktion der Geräuschentwicklung führten. Dies war nicht vorhersehbar, weil durch die Aussparungen 12 eher ein verstärkter Schallaustritt aus der Zentrierglocke zu vermuten war.After the centering bell made of hard plastic at Pulling in a cone made very loud punch noises and one Casing of the bell body made of sound-absorbing foam material no significant reduction in noise led on the circumference of the bell body 1 Recesses distributed over the circumference in the area of the upper part or recesses 12 which are formed without further changes the centering bell to a considerable reduction in noise led. This was unpredictable because through the recesses 12 rather an increased sound outlet was to be assumed from the centering bell.

Bei dem dargestellten Ausführungsbeispiel erstrecken sich die Aussparungen 12 etwa von der halben Höhe des Glockenkörpers nach oben in den kegelstumpfförmigen Abschnitt hinein, wobei über den Umfang vier solcher nach oben langgestreckter Aussparungen 12 vorgesehen sind.In the illustrated embodiment, the Recesses 12 from about half the height of the bell body into the frustoconical section above, with the The extent of four such recesses 12 which are elongated upwards are provided.

Die Aussparungen auf dem Umfang des Glockenkörpers können auch eine andere Form haben und anders als dargestellt angeordnet werden. So können sich die Aussparungen auch in den unteren Abschnitt des Glockenkörpers 1 erstrecken. Auch ist das Vorsehen solcher Aussparungen 12 nicht auf die dargestellte und beschriebene Form einer Zentrierglocke beschränkt, vielmehr können solche Aussparungen auch bei anderen bekannten Ausführungsformen vorgesehen werden, beispielsweise bei der eingangs geschilderten mehrteiligen Ausführungsform einer Zentrierglocke. Die Anordnung und Form der Aussparungen kann dabei je nach Gestaltung der Zentrierglocke ausgebildet werden. Bei der in der Zeichnung wiedergegebenen Zentrierglocke sind aufgrund der vorhandenen Flansche 3 und Versteifungsrippen 5 am Umfang vier Aussparungen 12 vorgesehen. Bei einer anderen Gestaltung der Zentrierglocke können auch mehrere Aussparungen oder weniger, aber dafür größere Aussparungen vorgesehen werden.The recesses on the circumference of the bell body can also have a different shape and are arranged differently than shown become. So the cutouts can also be found in the lower ones Extend section of the bell body 1. It is also the provision of such recesses 12 not on the form shown and described a centering bell is limited, rather such recesses also provided in other known embodiments are, for example in the multi-part described above Embodiment of a centering bell. The arrangement and shape The recesses can be depending on the design of the centering bell be formed. The one shown in the drawing Centering bell are 3 due to the existing flanges and stiffening ribs 5 on the circumference four recesses 12 are provided. With a different design of the centering bell can also multiple cutouts or less, but larger cutouts be provided.

In der Querschnittsansicht nach Fig. 2 sind auf dem Innenumfang verteilt flache Versteifungsrippen 13 angeformt, welche die Aussparungen 12 in Längsrichtung begrenzen und sich bis zur Aufnahmeöffnung am unteren Rand des Glockenkörpers 1 erstrecken können, wie Fig. 3 zeigt. 2 are on the inner circumference Distributes flat stiffening ribs 13 formed, which the recesses Limit 12 in the longitudinal direction and up to the opening extend at the bottom of the bell body 1 can, as Fig. 3 shows.

Die Aussparungen 12 werden vorzugsweise in dem Abschnitt des Glockenkörpers 1 vorgesehen der einen großen Durchmesser aufweist. Es ist auch möglich, zusätzliche Aussparungen im engeren Oberteil der Zentrierglocke vorzusehen. In gleicher Weise können über die Länge der Zentrierglocke verteilt mehrere einzelne Öffnungen bzw. Aussparungen vorgesehen werden, soweit hierdurch die Stabilität der Zentrierglocke nicht beeinträchtigt wird. Zur Verbesserung der Stabilität können entsprechend den Rippen 13 auf dem Innenumfang auch Versteifungsrippen auf dem Außenumfang des Glockenkörpers 1 vorgesehen werden, wenn durch die Fläche der Aussparungen die verbleibenden Stege am Glockenkörper 1 die erforderliche Stabilität nicht mehr gewährleisten würden.The recesses 12 are preferably in the section of the Bell body 1 is provided which has a large diameter. It is also possible to make additional cutouts in the narrower Provide the upper part of the centering bell. In the same way you can distributed over the length of the centering bell several Openings or recesses are provided, as far as this the stability of the centering bell is not impaired. For Improvement of the stability can correspond to the ribs 13 the inner circumference also stiffening ribs on the outer circumference of the Bell body 1 can be provided if by the surface of the Recesses the remaining webs on the bell body 1 the would no longer guarantee the required stability.

Es ist auch möglich, den Glockenkörper durch in Achsrichtung verlaufende, beabstandete Stege auszubilden, wobei die Stege an den beiden Enden durch Ringkörper miteinander verbunden sind. Die Aussparungen im Glockenkörper werden hierbei durch den Abstand der Stege in Umfangsrichtung ausgebildet.It is also possible to move the bell body in the axial direction running, spaced webs, the webs on the two ends are connected by ring bodies. The recesses in the bell body are determined by the distance the webs are formed in the circumferential direction.

Die in der Zeichnung wiedergegebene Zentrierglocke kann dadurch in einfacher Weise ausgebildet werden, daß in die vorhandene Form der Zentrierglocke in axialer Richtung von oben Einschübe eingesetzt werden, welche beim Ausformen der Zentrierglocke durch Spritzgießen die in der Zeichnung wiedergegebenen Aussparungen 12 ergeben. Es wird somit mit einfachsten Mitteln und damit entsprechend kostengünstig eine unerwartet starke Reduktion der Geräuschentwicklung erreicht.The centering bell shown in the drawing can thereby be trained in a simple manner that in the existing Form of the centering bell in the axial direction from above are used, which when molding the centering bell by injection molding the recesses shown in the drawing 12 result. It is thus done with the simplest of means and an unexpectedly strong reduction accordingly inexpensively the noise level reached.

Hierbei ist es für die Geräuschdämpfung nicht erforderlich, am Anschlag des Kegelkopfes im Oberteil des Glockenkörpers ein weiches Material einzusetzen. Die Reduktion der Geräuschentwicklung durch die Aussparungen wird auch dann erreicht, wenn die Zentrierglocke einteilig, d.h. ohne zusätzliche Einbauten, aus hartem Kunststoffmaterial besteht, das auch den Anschlag für den Kegelkopf bildet.It is not necessary for noise reduction on Stop the cone head in the upper part of the bell body use soft material. The reduction of noise through the recesses is also achieved when the Centering bell in one piece, i.e. without additional internals hard plastic material, which is also the stop for the Cone head forms.

Claims (5)

  1. Centering bell for a bowling pin setter, comprising a bell body (1) made in one piece of synthetic material,
    characterized in that
    for the muffling of noises on occasion of withdrawing a bowling pin into the bell body (1) between lower portion and upper portion of the bell body (1) recesses (12) are provided in the bell body (1) else having closed walls, which recesses are distributed over the circumference of the bell body (1).
  2. Centering bell according to claim 1,
    characterized in that
    the recesses (12) are provided on the section of the bell body (1) which has a larger diameter.
  3. Centering bell according to one of the claims 1 or 2,
    characterized in that the recesses (12) are aligned in axial direction of the bell body (1).
  4. Centering bell according to one of the preceding claims,
    characterized in that for stiffening the bell body (1) on the sections remaining between the recesses (12) stiffening ribs (13) are formed on the inner and/or outer circumference of the bell body (1).
  5. Centering bell according to one of the preceding claims,
    characterized in that
    the bell body (1) is formed by aligned spaced webs which are connected to each other at their ends by annular bodies.
EP96112003A 1995-07-28 1996-07-25 Centering bell for a bowling pin setter Expired - Lifetime EP0755704B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19527726A DE19527726C2 (en) 1995-07-28 1995-07-28 Centering bell for a cone setting machine
DE19527726 1995-07-28

Publications (2)

Publication Number Publication Date
EP0755704A1 EP0755704A1 (en) 1997-01-29
EP0755704B1 true EP0755704B1 (en) 2000-03-15

Family

ID=7768093

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96112003A Expired - Lifetime EP0755704B1 (en) 1995-07-28 1996-07-25 Centering bell for a bowling pin setter

Country Status (8)

Country Link
EP (1) EP0755704B1 (en)
AT (1) ATE190515T1 (en)
CZ (1) CZ287074B6 (en)
DE (2) DE19527726C2 (en)
HR (1) HRP960338B1 (en)
PL (1) PL315408A1 (en)
RO (1) RO116708B1 (en)
SI (1) SI9600238A (en)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH330859A (en) * 1955-02-12 1958-06-30 Schmid August Bowling alley facility
DE1130743B (en) * 1959-12-08 1962-05-30 August Schmid Cone centering device on a cone setting device
DE1157120B (en) * 1961-01-16 1963-11-07 August Schmid Cone centering device for game cones suspended from tension members
CH425579A (en) * 1965-02-26 1966-11-30 Seranina Ag Patentverwert Centering device for pins of pin actuators
AT269704B (en) * 1966-05-26 1969-03-25 Telac Radiotechnische Werkstae Automatic cone setting device
DE8007056U1 (en) * 1980-03-14 1980-06-19 Vollmer Werke Maschinenfabrik Gmbh, 7950 Biberach CENTERING DEVICE FOR TAPER POSITIONING MACHINES
DE4142808C2 (en) * 1991-12-23 1994-08-18 Spieth Ernst K Gmbh Cone setting machine

Also Published As

Publication number Publication date
RO116708B1 (en) 2001-05-30
DE19527726A1 (en) 1997-02-27
CZ222096A3 (en) 1997-04-16
PL315408A1 (en) 1997-02-03
CZ287074B6 (en) 2000-08-16
DE19527726C2 (en) 1997-07-03
SI9600238A (en) 1997-02-28
HRP960338A2 (en) 1997-08-31
DE59604646D1 (en) 2000-04-20
ATE190515T1 (en) 2000-04-15
EP0755704A1 (en) 1997-01-29
HRP960338B1 (en) 2000-06-30

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