ITBO20120494A1 - DEVICE FOR THE PARTICULARLY CUTTING OF PRODUCTS IN ELASTICALLY DEFORMABLE MATERIAL - Google Patents

DEVICE FOR THE PARTICULARLY CUTTING OF PRODUCTS IN ELASTICALLY DEFORMABLE MATERIAL Download PDF

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Publication number
ITBO20120494A1
ITBO20120494A1 IT000494A ITBO20120494A ITBO20120494A1 IT BO20120494 A1 ITBO20120494 A1 IT BO20120494A1 IT 000494 A IT000494 A IT 000494A IT BO20120494 A ITBO20120494 A IT BO20120494A IT BO20120494 A1 ITBO20120494 A1 IT BO20120494A1
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IT
Italy
Prior art keywords
claw
cutting
edge
cutting blade
respect
Prior art date
Application number
IT000494A
Other languages
Italian (it)
Inventor
Daniele Viccinelli
Original Assignee
Toro Loco S R L
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 Toro Loco S R L filed Critical Toro Loco S R L
Priority to IT000494A priority Critical patent/ITBO20120494A1/en
Publication of ITBO20120494A1 publication Critical patent/ITBO20120494A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
    • B26D1/01—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work
    • B26D1/12—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis
    • B26D1/25—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member
    • B26D1/26—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member moving about an axis substantially perpendicular to the line of cut
    • B26D1/30—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member moving about an axis substantially perpendicular to the line of cut with limited pivotal movement to effect cut
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
    • B26D1/01—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work
    • B26D1/02—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a stationary cutting member
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D3/00—Cutting work characterised by the nature of the cut made; Apparatus therefor
    • B26D3/006—Cutting work characterised by the nature of the cut made; Apparatus therefor specially adapted for cutting blocs of plastic material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
    • B26D1/0006—Cutting members therefor
    • B26D2001/0033—Cutting members therefor assembled from multiple blades
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
    • B26D1/0006—Cutting members therefor
    • B26D2001/0066—Cutting members therefor having shearing means, e.g. shearing blades, abutting blades

Description

DESCRIZIONE DESCRIPTION

“DISPOSITIVO PER IL TAGLIO PARTICOLARMENTE DI PRODOTTI IN MATERIALE ELASTICAMENTE DEFORMABILE†⠀ œ DEVICE FOR CUTTING PARTICULARLY OF PRODUCTS IN ELASTICALLY DEFORMABLE MATERIALâ €

La presente invenzione à ̈ relativa ad un dispositivo per il taglio particolarmente di prodotti in materiale elasticamente deformabile. The present invention relates to a device for cutting particularly products made of elastically deformable material.

Come à ̈ noto, prima della messa in discarica o di un eventuale riciclaggio di prodotti elasticamente deformabile (si pensi a pneumatici di elevato diametro) tali prodotti devono essere tagliati in modo da definire pezzature di ridotto ingombro. Attualmente vengono utilizzate delle cesoie definite da due chele di cui la chela inferiore à ̈ fissa e la chela superiore à ̈ rotante da e verso la chela inferiore (naturalmente le chele sono leggermente sfalsate fra loro in modo da permettere il taglio). In uso il prodotto viene dapprima disposto sopra la lama di taglio della inferiore e poi, tramite un attuatore fluidodinamico, si ruota la chela superiore verso la chela inferiore. As is well known, before landfilling or any recycling of elastically deformable products (think of large diameter tires) these products must be cut in such a way as to define small sizes. Currently, shears are used defined by two claws of which the lower claw is fixed and the upper claw is rotating from and towards the lower claw (naturally the claws are slightly offset from each other in order to allow cutting). In use, the product is first placed above the cutting blade of the lower one and then, by means of a fluid-dynamic actuator, the upper claw is rotated towards the lower claw.

Il problema principale che si riscontra nel taglio dei citati prodotti à ̈ dovuto al fatto che le chele presentano una rispettiva lama di taglio sostanzialmente rettilinea per cui la lama della chela superiore inizia il taglio in corrispondenza di un bordo del prodotto da tagliare e prosegue al taglio fino al bordo opposto. A causa del materiale elasticamente deformabile con cui à ̈ realizzato il prodotto da tagliare, questo con il bordo opposto a quello di inizio del taglio tende a sollevarsi dalla chela inferiore. Inoltre dato il materiale, il prodotto da tagliare oppone una decisa resistenza al taglio. The main problem encountered in cutting the aforementioned products is due to the fact that the claws have a respective substantially straight cutting blade so that the upper claw blade starts cutting at an edge of the product to be cut and continues to cut. to the opposite edge. Due to the elastically deformable material with which the product to be cut is made, this with the opposite edge to that of the beginning of the cut tends to rise from the lower claw. Furthermore, given the material, the product to be cut opposes a strong cut resistance.

Scopo della presente invenzione à ̈ quello di realizzare un dispositivo per il taglio particolarmente di prodotti in materiale elasticamente deformabile che sia privo dell’inconveniente citato e che cioà ̈ presenti delle lame di taglio che vadano ad eseguire il taglio su parti opposte fra loro del prodotto da tagliare. The purpose of the present invention is that of realizing a device for cutting particularly products in elastically deformable material which is free of the aforementioned drawback and which has cutting blades that go to perform the cut on opposite parts of the product to be cut.

In base alla presente invenzione viene realizzato un dispositivo per il taglio particolarmente di prodotti in materiale elasticamente deformabile comprendente: On the basis of the present invention, a device is provided for cutting particularly products in elastically deformable material comprising:

una chela inferiore che presenta una prima lama di taglio; a lower claw which has a first cutting blade;

una chela superiore che presenta una seconda lama di taglio; e an upper claw which has a second cutting blade; And

mezzi atti a comandare la rotazione di una detta chela rispetto all’altra; means for controlling the rotation of one said claw with respect to the other;

il detto dispositivo essendo caratterizzato dal fatto che la detta seconda lama di taglio presenta un filo di taglio definito da una pluralità di segmenti a scelta fra rettilinei e curvilinei ed angolati rispetto al segmento precedente con un angolo ottuso. said device being characterized in that said second cutting blade has a cutting edge defined by a plurality of segments chosen from rectilinear and curvilinear and angled with respect to the previous segment with an obtuse angle.

Per una migliore comprensione dell’invenzione à ̈ riportata di seguito una forma di realizzazione a puro titolo illustrativo e non limitativo con l'ausilio delle figure annesse in cui: For a better understanding of the invention, an embodiment is given below for illustrative and non-limiting purposes with the aid of the attached figures in which:

la figura 1 Ã ̈ una vista laterale di un dispositivo realizzato secondo i dettami della presente invenzione; e le figure da 2 a 5 sono viste laterali del dispositivo di figura 1 nelle varie fasi operative. Figure 1 is a side view of a device made according to the dictates of the present invention; and Figures 2 to 5 are side views of the device of Figure 1 in the various operating phases.

Con riferimento alla figura 1 à ̈ indicato nel suo complesso con 1 un dispositivo per il taglio particolarmente di prodotti in materiale elasticamente deformabile rappresentati nelle figure da un pneumatico 2 di elevate dimensioni che può raggiungere anche diametri superiori al metro. With reference to Figure 1, the numeral 1 indicates as a whole a device for cutting particularly products made of elastically deformable material represented in the figures by a tire 2 of large dimensions which can also reach diameters greater than one meter.

Il dispositivo 1 presenta una chela inferiore 3 fissa che poggia sulla pavimentazione da una parte tramite una gamba 4 realizzata di pezzo con la chela 3 e dalla parte opposta tramite una piastra 5 che si appoggia alla pavimentazione e che supporta in corrispondenza di una sua porzione superiore un albero orizzontale fisso 6 a cui viene resa solidale (in modo non illustrato in quanto noto) una porzione della chela 3 opposta a quella da cui si estende la gamba 4. Il dispositivo 1 presenta una chela superiore 7 che presenta una prima porzione di estremità 8 incernierata all’albero 6. La chela 7 à ̈ girevole attorno all’albero 6 tramite un attuatore fluidodinamico 11 illustrato schematicamente nella figura 1. Le caratteristiche finora descritte sono sostanzialmente presenti nei dispositivi della stessa tipologia presenti sul mercato. The device 1 has a fixed lower claw 3 which rests on the flooring on one side by means of a leg 4 made in one piece with the claw 3 and on the opposite side by means of a plate 5 which rests on the flooring and which supports at an upper portion thereof a fixed horizontal shaft 6 to which a portion of the claw 3 opposite to that from which the leg 4 extends is made integral (in a manner not illustrated as it is known). The device 1 has an upper claw 7 which has a first end portion 8 hinged to the shaft 6. The claw 7 is rotatable around the shaft 6 by means of a fluid-dynamic actuator 11 schematically illustrated in figure 1. The characteristics described so far are substantially present in the devices of the same type available on the market.

Le principali caratteristiche innovative oggetto della presente innovazione consistono soprattutto nella forma della lama di taglio definita in ognuna delle suddette chele 3 e 7. La chela inferiore 3 presenta un bordo superiore al quale à ̈ resa solidale una lama di taglio 12. Tale bordo superiore della chela 3 presenta, partendo dalla porzione della stessa fissata all’albero 6, una serie di tratti successivi rettilinei ognuno dei quali definente un angolo ottuso rispetto al tratto precedente. La lama 12 à ̈ definita da una serie di porzioni 13 fissate tramite viti 14 al corrispondente tratto del bordo superiore della chela 3. Le porzioni 13 presentano un rispettivo filo di taglio parallelo al corrispondente tratto del bordo superiore della chela 3 in modo che il filo complessivo di taglio della lama 12 presenti uno sviluppo sostanzialmente concavo verso l’alto ma naturalmente non curvilineo ma definito da successivi tratti rettilinei. The main innovative features of the present invention consist above all in the shape of the cutting blade defined in each of the aforementioned claws 3 and 7. The lower claw 3 has an upper edge to which a cutting blade 12 is made integral. chela 3 presents, starting from the portion of the same fixed to the shaft 6, a series of successive straight sections, each of which defining an obtuse angle with respect to the previous section. The blade 12 is defined by a series of portions 13 fixed by screws 14 to the corresponding portion of the upper edge of the claw 3. The portions 13 have a respective cutting edge parallel to the corresponding portion of the upper edge of the claw 3 so that the overall cutting of the blade 12 presents a substantially concave development towards the top but naturally not curvilinear but defined by successive straight sections.

Analogamente la chela superiore 7 presenta un bordo inferiore al quale à ̈ resa solidale una lama di taglio 15. Tale bordo inferiore della chela 7 presenta, partendo dalla porzione della stessa incernierata all’albero 6, una serie di tratti successivi rettilinei ognuno dei quali definente un angolo ottuso rispetto al tratto precedente. La lama 15 à ̈ realizzata in pezzo unico ed à ̈ fissata tramite viti 16 al bordo inferiore della chela 7. La lama 15 presenta una serie di porzioni 17 che presentano un rispettivo filo di taglio parallelo al corrispondente tratto del bordo inferiore della chela 7 in modo che il filo complessivo di taglio della lama 15 presenti uno sviluppo sostanzialmente concavo verso il basso ma naturalmente non curvilineo ma definito da successivi tratti rettilinei. In una diversa forma di attuazione anche la lama 15 potrebbe essere realizzata in più pezzi come la lama 3 e viceversa. Similarly, the upper claw 7 has a lower edge to which a cutting blade 15 is made integral. This lower edge of the claw 7 presents, starting from the portion of the claw hinged to the shaft 6, a series of successive straight sections, each of which defining an obtuse angle with respect to the previous section. The blade 15 is made in a single piece and is fixed by means of screws 16 to the lower edge of the claw 7. The blade 15 has a series of portions 17 which have a respective cutting edge parallel to the corresponding portion of the lower edge of the claw 7 in so that the overall cutting edge of the blade 15 has a substantially concave downward development but naturally not curvilinear but defined by successive rectilinear portions. In a different embodiment also the blade 15 could be made in several pieces like the blade 3 and vice versa.

In questa forma di attuazione il numero di porzioni 13 e 17 con cui sono realizzate le lame di taglio 12 e 15 sono quattro ma non si esclude che si possano utilizzare un numero diverso da quello illustrato. Inoltre l’angolazione fra porzioni successive 13 e 17 di ogni lama di taglio 12 e 15 potrebbe essere diversa da quella illustrata in figura 1. E’ da notare che sarebbe possibile prevedere un sistema di regolazione di tale angolazione in modo da definire i due fili complessivi di taglio in funzione delle dimensioni e del profilo in sezione del prodotto 2 da tagliare. E’ da evidenziare che il dispositivo di taglio 1 potrebbe essere provvisto di più chele 3 e 7 in modo da realizzare in una unica operazione più tagli contemporaneamente. Infine le lame di taglio 12 e 15 e/o il bordo delle chele 3 e 7 che le supporta potrebbero presentare segmenti e tratti curvilinei. In this embodiment, the number of portions 13 and 17 with which the cutting blades 12 and 15 are made are four but it is not excluded that a number other than that illustrated may be used. Furthermore, the angle between successive portions 13 and 17 of each cutting blade 12 and 15 could be different from that illustrated in figure 1. It should be noted that it would be possible to provide a system for adjusting this angle in order to define the two total cutting wires according to the dimensions and the sectional profile of the product 2 to be cut. It should be noted that the cutting device 1 could be provided with more claws 3 and 7 in order to make several cuts at the same time in a single operation. Finally, the cutting blades 12 and 15 and / or the edge of the claws 3 and 7 which support them could have curved segments and portions.

Come si può notare analizzando le operazioni di taglio illustrate in sequenza nelle figure da 1 a 5 successivamente alla deposizione del prodotto 2 sulla chela 3 si comanda l’attuatore 11 che determina la rotazione della chela 7 verso la verso la chela 3. Nella figura 1 à ̈ illustrata la posizione di riposo della chela 7 che corrisponde alla rotazione massima della chela 7 in allontanamento dalla chela 3. Nella figura 2 à ̈ illustrata la posizione della chela 7 a circa 15° di rotazione rispetto alla propria posizione di riposo e come si può notare la prima porzione 17 della lama 15 inizia il taglio del prodotto 2 in corrispondenza del bordo di questo prossimo all’albero 6. Nella figura 3 à ̈ illustrata la posizione della chela 7 a circa 30° dalla posizione di riposo e come si può notare anche l’ultima porzione 17 à ̈ già in taglio del prodotto 2 però del bordo opposto a quello iniziale realizzato dalla prima porzione 17 della lama 15. In sostanza dopo pochi gradi di rotazione della chela 7 inizia quasi contemporaneamente il taglio del prodotto 2 da parti opposte. Inoltre all’inizio della fase di taglio, i tagli sono obliqui e quindi interessano ridotte parti del prodotto 2 che quindi oppone una debole resistenza a tali tagli. Con riferimento alle figure 4 e 5 si nota che man mano che si procede con la fase di taglio entrano in gioco anche le porzioni 17 poste centralmente che vanno a tagliare man mano la parte centrale del prodotto 2; anche in questo caso i tagli essendo obliqui e quindi interessando ridotte parti del prodotto 2. As can be seen by analyzing the cutting operations illustrated in sequence in figures 1 to 5, after the deposition of the product 2 on the claw 3, the actuator 11 is controlled which determines the rotation of the claw 7 towards the claw 3. In the figure 1 shows the rest position of the claw 7 which corresponds to the maximum rotation of the claw 7 away from the claw 3. Figure 2 shows the position of the claw 7 at about 15 ° of rotation with respect to its rest position and how you can see the first portion 17 of the blade 15 begins cutting the product 2 at the edge of this next to the tree 6. Figure 3 illustrates the position of the claw 7 at about 30 ° from the rest position and how it is also possible to notice the last portion 17 is already in cut of the product 2 but of the opposite edge to the initial one made by the first portion 17 of the blade 15. Basically, after a few degrees of rotation and of the claw 7 the cutting of the product 2 on opposite sides begins almost at the same time. Furthermore, at the beginning of the cutting phase, the cuts are oblique and therefore involve small parts of the product 2 which therefore offers a weak resistance to such cuts. With reference to figures 4 and 5, it can be seen that as the cutting phase proceeds, the centrally placed portions 17 also come into play, gradually cutting the central part of the product 2; also in this case the cuts being oblique and therefore involving small parts of the product 2.

Da quanto descritto ed illustrato risultano evidenti i vantaggi ottenuti con la realizzazione della presente invenzione. From what has been described and illustrated the advantages obtained with the realization of the present invention are evident.

In particolare, realizzando le lame di taglio 12 e 15 in modo che presentino il rispettivo filo di taglio definito da segmenti rettilinei angolati rispetto al segmento precedente con un angolo ottuso, con il dispositivo 1 si realizza il taglio del prodotto 2 quasi in contemporanea su bordi opposti del prodotto 2 e poi man mano si realizza il taglio della parte centrale del prodotto 2. Inoltre i tagli sono obliqui e per questo interessano sempre, porzione 17 per porzione 17 della lama 15, ridotti tratti del prodotto 2. In questo modo risulta rapida ed efficace la fase di taglio sia per prodotti di elevate dimensioni e sia per prodotti in materiale elasticamente deformabile che cercano di opporre una forte resistenza al taglio. In particular, by making the cutting blades 12 and 15 so that they have the respective cutting edge defined by straight segments angled with respect to the previous segment with an obtuse angle, with the device 1 the cutting of the product 2 is carried out almost simultaneously on the edges of the product 2 and then gradually the cut of the central part of the product 2 is made. Furthermore, the cuts are oblique and therefore always involve, portion 17 by portion 17 of the blade 15, reduced sections of the product 2. In this way it is rapid the cutting phase is effective both for large-sized products and for products in elastically deformable material that try to oppose a strong resistance to cutting.

Claims (8)

RIVENDICAZIONI 1. Dispositivo per il taglio particolarmente di prodotti (2) in materiale elasticamente deformabile comprendente: una chela inferiore (3) che presenta una prima lama di taglio (12); una chela superiore (7) che presenta una seconda lama di taglio (15); e mezzi (11) atti a comandare la rotazione di una detta chela (7 e/o 3) rispetto all’altra; il detto dispositivo essendo caratterizzato dal fatto che la detta seconda lama di taglio (15) presenta un filo di taglio definito da una pluralità di segmenti a scelta fra rettilinei e curvilinei ed angolati rispetto al segmento precedente con un angolo ottuso. CLAIMS 1. Device for cutting particularly products (2) in elastically deformable material comprising: a lower claw (3) which has a first cutting blade (12); an upper claw (7) which has a second cutting blade (15); And means (11) adapted to control the rotation of one said claw (7 and / or 3) with respect to the other; said device being characterized in that said second cutting blade (15) has a cutting edge defined by a plurality of segments chosen from rectilinear and curvilinear and angled with respect to the previous segment with an obtuse angle. 2. Dispositivo secondo la rivendicazione 1 caratterizzato dal fatto che la detta chela superiore (7) presenta un bordo inferiore al quale à ̈ resa solidale la detta seconda lama di taglio (15); tale bordo inferiore della detta chela superiore (7) presentando una serie di tratti successivi a scelta fra rettilinei e curvilinei ed ognuno dei quali definente un angolo ottuso rispetto al tratto precedente. 2. Device according to claim 1 characterized in that said upper claw (7) has a lower edge to which said second cutting blade (15) is made integral; said lower edge of said upper claw (7) presenting a series of successive sections chosen from rectilinear and curvilinear ones and each of which defining an obtuse angle with respect to the previous section. 3. Dispositivo secondo la rivendicazione 2 caratterizzato dal fatto che la detta seconda lama di taglio (15) à ̈ realizzata in pezzo unico ed à ̈ fissata tramite viti (16) al bordo inferiore della detta chela superiore (7). 3. Device according to claim 2 characterized in that said second cutting blade (15) is made in a single piece and is fixed by means of screws (16) to the lower edge of said upper claw (7). 4. Dispositivo secondo la rivendicazione 2 caratterizzato dal fatto che la detta seconda lama di taglio (15) à ̈ realizzata in più pezzi, uno per ogni tratto del bordo inferiore della detta chela superiore (7) ed à ̈ fissata tramite viti (16) al bordo inferiore della detta chela superiore (7). 4. Device according to claim 2 characterized in that said second cutting blade (15) is made in several pieces, one for each portion of the lower edge of said upper claw (7) and is fixed by screws (16) at the lower edge of said upper claw (7). 5. Dispositivo secondo una qualsiasi delle rivendicazioni precedenti caratterizzato dal fatto che la detta prima lama di taglio (12) presenta un filo di taglio definito da una pluralità di segmenti a scelta fra rettilinei e curvilinei ed angolati rispetto al segmento precedente con un angolo ottuso. 5. Device according to any one of the preceding claims characterized in that the said first cutting blade (12) has a cutting edge defined by a plurality of segments chosen from straight and curvilinear and angled with respect to the previous segment with an obtuse angle. 6. Dispositivo secondo la rivendicazione 5 caratterizzato dal fatto che la detta chela inferiore (3) presenta un bordo superiore al quale à ̈ resa solidale la detta prima lama di taglio (12); tale bordo superiore della detta chela inferiore (3) presentando una serie di tratti successivi a scelta fra rettilinei e curvilinei ognuno dei quali definente un angolo ottuso rispetto al tratto precedente. 6. Device according to claim 5 characterized in that said lower claw (3) has an upper edge to which said first cutting blade (12) is made integral; said upper edge of said lower claw (3) presenting a series of successive sections chosen from rectilinear and curvilinear ones, each of which defining an obtuse angle with respect to the previous section. 7. Dispositivo secondo la rivendicazione 6 caratterizzato dal fatto che la detta prima lama di taglio (12) à ̈ realizzata in pezzo unico ed à ̈ fissata tramite viti (14) al bordo superiore della detta chela inferiore (3). 7. Device according to claim 6 characterized in that said first cutting blade (12) is made in a single piece and is fixed by means of screws (14) to the upper edge of said lower claw (3). 8. Dispositivo secondo la rivendicazione 6 caratterizzato dal fatto che la detta prima lama di taglio (12) à ̈ realizzata in più pezzi (13), uno per ogni tratto del bordo superiore della detta chela inferiore (3) ed à ̈ fissata tramite viti (14) al bordo superiore della detta chela inferiore (3).8. Device according to claim 6 characterized in that said first cutting blade (12) is made in several pieces (13), one for each section of the upper edge of said lower claw (3) and is fixed by screws (14) at the upper edge of said lower claw (3).
IT000494A 2012-09-19 2012-09-19 DEVICE FOR THE PARTICULARLY CUTTING OF PRODUCTS IN ELASTICALLY DEFORMABLE MATERIAL ITBO20120494A1 (en)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10204506A1 (en) * 2002-02-05 2003-08-07 Schwarz Knut Magnus Cutting device has angle enclosed at intersection point of cutter and counter-edge at any time during motion
US6725546B1 (en) * 1999-08-05 2004-04-27 Alterra Holdings Corporation Hardened insert for cutting tools
DE102009059940A1 (en) * 2009-12-22 2011-06-30 Herwig-Bohrtechnik Schmalkalden GmbH, 98574 Shear blades for cutting devices, has replaceable cutting inserts, which are accommodated, held and clamped in shear blades by mechanical unit by form closure and force closure

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6725546B1 (en) * 1999-08-05 2004-04-27 Alterra Holdings Corporation Hardened insert for cutting tools
DE10204506A1 (en) * 2002-02-05 2003-08-07 Schwarz Knut Magnus Cutting device has angle enclosed at intersection point of cutter and counter-edge at any time during motion
DE102009059940A1 (en) * 2009-12-22 2011-06-30 Herwig-Bohrtechnik Schmalkalden GmbH, 98574 Shear blades for cutting devices, has replaceable cutting inserts, which are accommodated, held and clamped in shear blades by mechanical unit by form closure and force closure

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