WO2015010173A1 - Clippings ejector - Google Patents

Clippings ejector Download PDF

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Publication number
WO2015010173A1
WO2015010173A1 PCT/BR2013/000271 BR2013000271W WO2015010173A1 WO 2015010173 A1 WO2015010173 A1 WO 2015010173A1 BR 2013000271 W BR2013000271 W BR 2013000271W WO 2015010173 A1 WO2015010173 A1 WO 2015010173A1
Authority
WO
WIPO (PCT)
Prior art keywords
saw
spring
disc
cut
ejector device
Prior art date
Application number
PCT/BR2013/000271
Other languages
French (fr)
Portuguese (pt)
Inventor
Luiz Hélio DA SILVEIRA MORAES
Original Assignee
Starrett Indústria E Comércio Ltda
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 Starrett Indústria E Comércio Ltda filed Critical Starrett Indústria E Comércio Ltda
Priority to PCT/BR2013/000271 priority Critical patent/WO2015010173A1/en
Publication of WO2015010173A1 publication Critical patent/WO2015010173A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B51/00—Tools for drilling machines
    • B23B51/04—Drills for trepanning
    • B23B51/0453—Drills for trepanning with ejecting devices

Definitions

  • the present utility model relates to a leftover cutting ejector device, particularly used to remove the remaining circle from cutouts made by cup saws in materials such as wood, metal, concrete, etc.
  • Cup saws used for cutting circular holes of varying and relatively large diameter compared to conventional drill diameters are known to the art.
  • Such saws are generally hollow cylindrical, provided with a jagged edge end, and an opposite end which is fixed to a suitable support is coupled to a drill.
  • These saws are generally used with a drill attached to the bracket that extends beyond the jagged edge to guide the saw, making it easier to position, guide and cut the desired circle.
  • the cut is performed by the glass saw, which cuts a circle or wafer of the material, which is retained within the saw.
  • An option for holes in the saw is to use a spring attached around the guide bit which, once the cut is completed, pushes the circle out of the saw.
  • the spring is compressed between the cup saw and the material as it advances with the saw to make the cut, and once finished, the spring decompresses and pushes the circle out of the saw.
  • the present utility model proposes a spare cut ejector device capable of ejecting the remaining cut circle out of the saw, pushing it over much of its surface, allowing its removal, preventing it from being removed. lean over.
  • Figure 1 illustrates a perspective view of the cut-off ejector device (1) of the present invention
  • Figure 2 shows a cross-sectional view of the disc (2) and side of the spring (3) of the device (1);
  • Figure 3 shows a schematic perspective view of the device (1) with a cup saw (5) and a support (6) fixing the drill bit (4).
  • Figure 4 shows a perspective and sectional view of the device (1) with a cup saw (5)
  • Figure 5 shows a top exploded perspective view of the device (1) with a cup saw (5) and the holder (6); and ,
  • Figure 6 shows a bottom exploded perspective view of the device (1) with a cup saw (5) and the holder (6). ;
  • the present utility model is a cut-off ejector device (1) to be coupled to a cup saw (5) for removal of the circle which is released after cutting the material.
  • Figure 3 illustrates a typical cylindrical shaped cup saw (5) with a toothed free edge (51) and an opposite end closed by a disc (52).
  • a disk has a central threaded hole to which the holder (6) is fixed which in turn serves to secure the guide bit (4) through the screw (61).
  • the guide bit (4) coaxial with the saw (5) assists the positioning of the saw (5) in the material to be cut by guiding the saw (5) during cutting.
  • the device (1) is formed by a disk (2) and a spring (3), wherein the spring is coaxial to the disk (2) and is orthogonally fixed therein, with the diameter of the disk (2) smaller than the diameter of the saw (5) in order to allow the displacement of the disc (2) along the saw (5).
  • the disc (2) comprises an annular protrusion (22) around the central hole (21) which assists in securing the spring to the disc (2).
  • the projection (22) has an annular throttle (24) for housing the spring end (3) which In this configuration it is fitted by pressing its tip, which is simultaneously rotated until it is retained in the choke (24), securing the spring (3) to the disc (2).
  • the spring coupling end (3) on the disc (2) is reduced to engage internally on the protrusion (22).
  • the spring (3) has its free end coaxially inserted into the cup saw (5) around the guide bit (4) and is longer than the saw (5) so that the disc (2) remains outside the saw (4). 5) when the spring (3) is decompressed.
  • Said disc (2) is provided with a central hole (21) for the passage of the drill (4) when the spring (3) fits into the drill (4) and saw (5).
  • the disc (2) is provided with a plurality of openings (23) that allow the circulation of the cooling and lubricating liquid during the cutting of the material by the saw (5); also allow the mass reduction of the disc (2).
  • the spring (3) is positioned around the drill (4) and the device (1) is inserted into the saw (5).
  • the spring is retained within the saw (5) by mechanical interference between the spring (4) and the drill (3).
  • the drill bit (4) is then used to position the assembly at the desired cutting location by positioning the tip of the drill bit (4) perpendicular to the center of the location.
  • the drill bit (4) advances by drilling the material until the saw (5) starts cutting, while the advance of the saw (5) causes the spring (3) to compress between the saw (5) and the material being cut, taking with it the disc (2) that enters the saw (5).
  • the advance of the saw (5) is interrupted and set back; the spring (3) is released from the compression which thus pushes the disc (2) out of the saw (5), taking with it the cut circle of the material.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)

Abstract

The present utility model relates to a clippings ejector (1) used to remove the circle of material remaining from cutting material such as wood, metal, concrete, etc. with a cylinder saw (5).

Description

DISPOSITIVO EJETOR DE SOBRA DE CORTE  CUTTING EJECTOR DEVICE
O presente modelo de utilidade refere-se a um dispositivo ejetor de sobra de corte, usado particularmente para remover o circulo remanescente de recortes executados por serras copo em materiais, tais como madeiras, metais, concreto, etc.  The present utility model relates to a leftover cutting ejector device, particularly used to remove the remaining circle from cutouts made by cup saws in materials such as wood, metal, concrete, etc.
Histórico da Inovação Innovation History
São conhecidas do homem da técnica serras copo utilizadas para corte de furos circulares de diâmetros variados e relativamente grandes quando comparados com os diâmetros das brocas convencionais. Tais serras são genericamente cilíndricas, ocas, dotadas de uma extremidade de borda dentada, e de uma extremidade oposta que fixada em suporte adequado é acoplável a uma furadeira. Essas serras geralmente são utilizadas com uma broca acoplada ao suporte que avança além da borda dentada, de forma a servir de guia para a serra, facilitando seu posicionamento, guia e corte do circulo desejado.  Cup saws used for cutting circular holes of varying and relatively large diameter compared to conventional drill diameters are known to the art. Such saws are generally hollow cylindrical, provided with a jagged edge end, and an opposite end which is fixed to a suitable support is coupled to a drill. These saws are generally used with a drill attached to the bracket that extends beyond the jagged edge to guide the saw, making it easier to position, guide and cut the desired circle.
O corte é executado pela serra copo, que recorta um círculo ou bolacha do material, que fica retido dentro da serra.  The cut is performed by the glass saw, which cuts a circle or wafer of the material, which is retained within the saw.
Existem alguns mecanismos que foram desenvolvidos para a remoção do círculo de material de dentro da serra. Dentre eles podem-se citar as serras dotadas de aberturas em suas paredes laterais que permitem a introdução de ferramentas alongadas, possibilitando alavancar com a estrutura da serra, para empurrar o círculo para fora da serra. A retirada do círculo é dificultada, pois o círculo pode inclinar-se dentro da serra, travando seu movimento de. saída.  There are some mechanisms that have been developed for removing the material circle from inside the saw. These include openings in the sidewalls that allow the introduction of elongated tools, allowing to leverage with the structure of the saw to push the circle out of the saw. The withdrawal of the circle is difficult, as the circle can tilt into the saw, blocking its movement. output.
Uma opção aos furos na serra é a utilização de uma mola acoplada ao redor da broca guia que, uma vez concluído o corte, impulsiona o círculo para fora da serra. A mola é comprimida entre a serra copo e o material ao se avançar com a serra para fazer o corte, e uma vez finalizado, a mola se descomprime e empurra o circulo para fora da serra. An option for holes in the saw is to use a spring attached around the guide bit which, once the cut is completed, pushes the circle out of the saw. The spring is compressed between the cup saw and the material as it advances with the saw to make the cut, and once finished, the spring decompresses and pushes the circle out of the saw.
Esse mecanismo também oferece algumas desvantagens. A pressão da mola ocorre no centro do circulo e qualquer resíduo de material na face interna da serra, dificulta a saída do círculo, que inclina e trava dentro da serra .  This mechanism also offers some disadvantages. Spring pressure occurs in the center of the circle and any material residue on the inner face of the saw makes it difficult to exit the circle, which tilts and locks into the saw.
A fim de solucionar esses inconvenientes, o presente modelo de utilidade propõe um dispositivo ejetor de sobra de corte capaz de ejetar o círculo remanescente do corte para fora da serra, impulsionando-o sobre grande parte de sua superfície, permitindo sua retirada, impedindo que ele incline-se.  In order to solve these drawbacks, the present utility model proposes a spare cut ejector device capable of ejecting the remaining cut circle out of the saw, pushing it over much of its surface, allowing its removal, preventing it from being removed. lean over.
A título ilustrativo são apresentadas a seguir figuras esquemáticas de um exemplo do dispositivo ejetor de sobra de corte da presente inovação, cujas dimensões e proporções não são necessariamente as reais, pois as figuras têm apenas a finalidade de apresentar didaticamente os diversos aspectos da inovação, cuja abrangência de proteção está determinada apenas pelo escopo das reivindicações anexas.  For illustrative purposes, the following schematic figures are presented for an example of the leftover cutting ejector device of the present innovation, whose dimensions and proportions are not necessarily the actual ones, since the figures are only intended to didactically present the various aspects of innovation, whose The scope of protection is determined solely by the scope of the appended claims.
Breve descrição dos desenhos Brief Description of Drawings
O dispositivo ejetor de sobra de corte será descrito a seguir com base nos desenhos anexos, nos quais: a figura 1 ilustra uma vista em perspectiva do dispositivo ejetor de sobra de corte (1) da presente inovação ;  The cut-off ejector device will be described hereinafter based on the accompanying drawings in which: Figure 1 illustrates a perspective view of the cut-off ejector device (1) of the present invention;
- a figura 2 ilustra uma vista em corte do disco (2) e lateral da mola (3) do dispositivo (1) ; Figure 2 shows a cross-sectional view of the disc (2) and side of the spring (3) of the device (1);
- a figura 3 ilustra uma vista em perspectiva esquemática do dispositivo (1) com uma serra copo (5) e com um suporte (6) de fixação da broca (4). Figure 3 shows a schematic perspective view of the device (1) with a cup saw (5) and a support (6) fixing the drill bit (4).
- a figura 4 ilustra uma vista em perspectiva e em corte do dispositivo (1) com uma serra copo (5);  Figure 4 shows a perspective and sectional view of the device (1) with a cup saw (5);
- a figura 5 ilustra uma vista em perspectiva explodida superior do dispositivo (1) com uma serra copo (5) e com o suporte ( 6 ) ; e ,  Figure 5 shows a top exploded perspective view of the device (1) with a cup saw (5) and the holder (6); and ,
- a figura 6 ilustra uma vista em perspectiva explodida inferior do dispositivo (1) com uma serra copo (5) e com o suporte ( 6 ) . ;  Figure 6 shows a bottom exploded perspective view of the device (1) with a cup saw (5) and the holder (6). ;
Descrição da Configuração Ilustrada Description of Illustrated Configuration
Conforme ilustrado nas figuras anexas, o presente modelo de utilidade trata de um dispositivo ejetor de sobra de corte (1) para ser acoplado a uma serra copo (5) para remoção do circulo que é liberado após o corte do material.  As illustrated in the accompanying figures, the present utility model is a cut-off ejector device (1) to be coupled to a cup saw (5) for removal of the circle which is released after cutting the material.
A figura 3 ilustra uma serra copo (5) típica de formato cilíndrico com uma borda livre dentada (51) e uma extremidade oposta fechada por um disco (52) . Tal disco tem um furo central com rosca ao qual é fixado o suporte (6) que por sua vez serve para fixar a broca guia (4) através do parafuso (61). A broca guia (4) coaxial com a serra (5) auxilia o posicionamento da serra (5) no material a ser cortado, guiando a serra (5) durante o corte.  Figure 3 illustrates a typical cylindrical shaped cup saw (5) with a toothed free edge (51) and an opposite end closed by a disc (52). Such a disk has a central threaded hole to which the holder (6) is fixed which in turn serves to secure the guide bit (4) through the screw (61). The guide bit (4) coaxial with the saw (5) assists the positioning of the saw (5) in the material to be cut by guiding the saw (5) during cutting.
Conforme a figura 1, o dispositivo (1) é formado por um disco (2) e uma mola (3), em que a mola é coaxial ao disco (2) e é nele fixada ortogonalmente, sendo o diâmetro do disco (2) menor que o diâmetro da serra (5) de forma a possibilitar o deslocamento do disco (2) ao longo da serra (5) .  According to figure 1, the device (1) is formed by a disk (2) and a spring (3), wherein the spring is coaxial to the disk (2) and is orthogonally fixed therein, with the diameter of the disk (2) smaller than the diameter of the saw (5) in order to allow the displacement of the disc (2) along the saw (5).
Conforme ilustrado na figura 2, o disco (2) compreende uma saliência anelar (22) ao redor do furo central (21) que auxilia a fixação da mola ao disco (2) . De maneira particular a saliência (22) tem um estrangulamento anelar (24) para alojamento da extremidade da mola (3), que nessa configuração é encaixada por pressão de sua ponta, que é simultaneamente girada até ficar retida no estrangulamento (24), fixando a mola (3) no disco (2). As illustrated in figure 2, the disc (2) comprises an annular protrusion (22) around the central hole (21) which assists in securing the spring to the disc (2). In particular the projection (22) has an annular throttle (24) for housing the spring end (3) which In this configuration it is fitted by pressing its tip, which is simultaneously rotated until it is retained in the choke (24), securing the spring (3) to the disc (2).
Em uma variante construtiva, a extremidade de acoplamento da mola (3) no disco (2) é reduzida de forma a acoplar-se internamente na saliência (22) .  In one embodiment, the spring coupling end (3) on the disc (2) is reduced to engage internally on the protrusion (22).
A mola (3) tem sua extremidade livre introduzida coaxialmente na serra copo (5), ao redor da broca guia (4), e é mais longa que a serra (5) de forma que o disco (2) permanece fora da serra (5) quando a mola (3) está descomprimida .  The spring (3) has its free end coaxially inserted into the cup saw (5) around the guide bit (4) and is longer than the saw (5) so that the disc (2) remains outside the saw (4). 5) when the spring (3) is decompressed.
Referido disco (2) é dotado de um furo central (21) para a passagem da broca (4) quando do encaixe da mola (3) na broca (4) e serra (5) .  Said disc (2) is provided with a central hole (21) for the passage of the drill (4) when the spring (3) fits into the drill (4) and saw (5).
Conforme exemplo ilustrado nas figuras anexas o disco (2) é dotado de uma pluralidade de aberturas (23) que permitem a circulação do liquido utilizado para resfriamento e lubrificação durante o corte do material pela serra (5) ; permitem também a redução de massa do disco (2).  As illustrated in the accompanying figures, the disc (2) is provided with a plurality of openings (23) that allow the circulation of the cooling and lubricating liquid during the cutting of the material by the saw (5); also allow the mass reduction of the disc (2).
Para se utilizar o presente dispositivo (1) posiciona-se a mola (3) ao redor da broca (4) e introduz-se o dispositivo (1) no interior da serra (5) . A mola fica retida no interior da serra (5) por interferência mecânica entre a mola (4) e a broca (3) .  To use the present device (1), the spring (3) is positioned around the drill (4) and the device (1) is inserted into the saw (5). The spring is retained within the saw (5) by mechanical interference between the spring (4) and the drill (3).
A broca (4) é então utilizada para posicionar o conjunto no local de corte desejado, posicionando-se a ponta da broca (4) perpendicularmente no centro do local. A broca (4) avança furando o material até que a serra (5) inicia o corte, ao mesmo tempo em que o avanço da serra (5) faz com que a mola (3) se comprima entre a serra (5) e o material que está sendo cortado, levando consigo o disco (2) que entra na serra (5) . Uma vez efetuado o corte, o avanço da serra (5) é interrompido, e recuado; a mola (3) é liberada da compressão, que assim empurra o disco (2) para fora da serra (5), levando consigo o circulo cortado do material. The drill bit (4) is then used to position the assembly at the desired cutting location by positioning the tip of the drill bit (4) perpendicular to the center of the location. The drill bit (4) advances by drilling the material until the saw (5) starts cutting, while the advance of the saw (5) causes the spring (3) to compress between the saw (5) and the material being cut, taking with it the disc (2) that enters the saw (5). Once the cut is made, the advance of the saw (5) is interrupted and set back; the spring (3) is released from the compression which thus pushes the disc (2) out of the saw (5), taking with it the cut circle of the material.
O homem da técnica prontamente perceberá, a partir da descrição, várias maneiras de realizar a inovação sem fugir do escopo das reivindicações anexas .  The skilled man will readily appreciate from the description various ways of accomplishing innovation without departing from the scope of the appended claims.

Claims

REIVINDICAÇÕES
1 - DISPOSITIVO EJETOR DE SOBRA DE CORTE, usado acoplado à uma broca guia (4) de uma serra copo (5) para remover o círculo remanescente de recortes em materiais caracterizado pelo fato de compreender um disco (2) e uma mola (3), em que a mola é fixada axial e ortogonalmente ao disco (2); a extremidade livre da mola (3) é acoplável coaxialmente à serra (5), ao redor da broca guia (4), e a mola (3) é mais longa que a serra (5) quando está descomprimida; o disco (2) é dotado de um furo central (21) para a passagem da broca (4) quando do encaixe da mola (3) na broca (4), e o diâmetro do disco (2) é menor que o diâmetro da serra (5) .  1 - CUTTING EJECTOR DEVICE, used coupled to a guide bit (4) of a cup saw (5) to remove the remaining circle of material cuttings comprising a disc (2) and a spring (3) wherein the spring is fixed axially and orthogonally to the disc (2); the free end of the spring (3) is coupled coaxially to the saw (5) around the guide bit (4) and the spring (3) is longer than the saw (5) when uncompressed; the disc (2) has a central hole (21) for the passage of the drill (4) when the spring (3) fits into the drill (4), and the diameter of the disc (2) is smaller than the diameter of the saw (5).
2 - DISPOSITIVO EJETOR DE SOBRA DE CORTE de acordo com a reivindicação 1 caracterizado pelo fato de que o disco (2) compreende uma saliência anelar (22) ao redor do furo central (21); e a extremidade de acoplamento da mola (3) no disco (2) é alargada de forma a acoplar-se externamente à saliência (22) .  CUT-SHOULDER EJECTOR DEVICE according to claim 1, characterized in that the disc (2) comprises an annular protrusion (22) around the central hole (21); and the coupling end of the spring (3) on the disc (2) is widened to engage externally with the protrusion (22).
3 - DISPOSITIVO EJETOR DE SOBRA DE CORTE de acordo com a reivindicação 2 caracterizado pelo fato de que a saliência (22) tem um estrangulamento anelar (24) de alojamento da extremidade da mola (3) .  CUT-SHOULDER EJECTOR DEVICE according to claim 2, characterized in that the protrusion (22) has an annular throttle (24) for housing the spring end (3).
4 - DISPOSITIVO EJETOR DE SOBRA DE CORTE de acordo com a reivindicação 1 caracterizado pelo fato de que o disco (2) compreende uma pluralidade de aberturas (23).  CUT-SHOOTING EJECTOR DEVICE according to claim 1, characterized in that the disc (2) comprises a plurality of openings (23).
5- DISPOSITIVO EJETOR DE SOBRA DE CORTE de acordo com a reivindicação 1 caracterizado pelo fato de que o disco (2) compreende uma saliência anelar (22) ao redor do furo central (21) para acomodar a mola (3) ao redor do furo central (21), dentro da saliência.  CUT-SHOULDER EJECTOR DEVICE according to claim 1, characterized in that the disc (2) comprises an annular protrusion (22) around the central hole (21) to accommodate the spring (3) around the hole. (21) within the protrusion.
PCT/BR2013/000271 2013-07-26 2013-07-26 Clippings ejector WO2015010173A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/BR2013/000271 WO2015010173A1 (en) 2013-07-26 2013-07-26 Clippings ejector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/BR2013/000271 WO2015010173A1 (en) 2013-07-26 2013-07-26 Clippings ejector

Publications (1)

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006062388A1 (en) * 2004-12-10 2006-06-15 A.V. Custom Style B.V. Quick-change and plug eject arbor for a hole saw
BRMU8902709U2 (en) * 2009-11-16 2010-11-30 Joao Batista Sodre technical arrangement introduced in cup saw dust collector

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006062388A1 (en) * 2004-12-10 2006-06-15 A.V. Custom Style B.V. Quick-change and plug eject arbor for a hole saw
BRMU8902709U2 (en) * 2009-11-16 2010-11-30 Joao Batista Sodre technical arrangement introduced in cup saw dust collector

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