US20210039222A1 - Punching assistant device - Google Patents
Punching assistant device Download PDFInfo
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- US20210039222A1 US20210039222A1 US16/980,333 US201916980333A US2021039222A1 US 20210039222 A1 US20210039222 A1 US 20210039222A1 US 201916980333 A US201916980333 A US 201916980333A US 2021039222 A1 US2021039222 A1 US 2021039222A1
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- shaft
- assistant device
- punching
- grinder
- coupled
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- 238000004080 punching Methods 0.000 title claims abstract description 74
- 230000008878 coupling Effects 0.000 claims description 11
- 238000010168 coupling process Methods 0.000 claims description 11
- 238000005859 coupling reaction Methods 0.000 claims description 11
- 239000000428 dust Substances 0.000 claims description 6
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 238000003780 insertion Methods 0.000 description 26
- 230000037431 insertion Effects 0.000 description 26
- 239000000470 constituent Substances 0.000 description 17
- 239000000463 material Substances 0.000 description 8
- 238000000034 method Methods 0.000 description 8
- 230000003247 decreasing effect Effects 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B27/00—Other grinding machines or devices
- B24B27/06—Grinders for cutting-off
- B24B27/065—Grinders for cutting-off the saw being mounted on a pivoting arm
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B27/00—Other grinding machines or devices
- B24B27/06—Grinders for cutting-off
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B27/00—Other grinding machines or devices
- B24B27/06—Grinders for cutting-off
- B24B27/0683—Accessories therefor
Definitions
- the disclosure relates to a punching assistant device that is portable due to a light weight and enables convenient and precise punching.
- the punching has been performed in a manner in which a worker draws, on the ceiling, a rough sketch of a circle to be punched, and directly cuts a part of the ceiling based on the rough sketch of the circle drawn on the ceiling.
- a disclosure is providing a punching assistant device that enables accurate punching of a circle in a ceiling with a grinder, which is a punch generally used.
- a punching assistant device includes: a first shaft arranged perpendicular to a working surface; a second shaft perpendicularly coupled to the first shaft; and a grinder mounting member coupled to the second shaft, wherein the grinder mounting member is rotatable around the first shaft.
- the grinder mounting member may include a first opening opened toward the working surface, and a second opening which communicates with the first opening and into which a grinder is insertable.
- the grinder mounting member may include a receiving portion coupled to the second shaft, and including a receiving space that includes the first opening and the second opening, and a cover portion detachably coupled to the receiving portion and covering a part of the second opening.
- the receiving portion may include a work supporting surface that comes into contact with the working surface.
- the receiving portion may include a dust discharge port communicating with the receiving space.
- the receiving portion may include a coupling hole into which the second shaft is inserted and coupled.
- the punching assistant device may further include a connection member which is rotatably connected to one end of the first shaft and to which one end of the second shaft is connected.
- connection member may include a first portion rotatably connected to the one end of the first shaft, a hinge shaft coupled to the first portion, and a second portion which is pivotably coupled to the hinge shaft and to which the one end of the second shaft is connected.
- At least one of the first shaft or the second shaft may have a multistage structure in which a length is changeable.
- the punching assistant device may further include a first fixing member coupled to one end of the first shaft and coming into contact with the working surface.
- the first fixing member may include a fixing pin penetrating through the working surface.
- the first fixing member may include a first supporting surface on which the fixing pin is arranged and which has a diameter larger than a diameter of the one end of the first shaft.
- the punching assistant device may further include a second fixing member coupled to the other end of the first shaft that is opposite to one end of the first shaft, and including a second supporting surface with a diameter larger than a diameter of the other end of the first shaft.
- the receiving portion may include at least one supporting portion protruding toward the receiving space.
- a punching assistant device includes: a first shaft arranged perpendicular to a working surface; a second shaft perpendicularly coupled to the first shaft; a grinder mounting member coupled to the second shaft; and a connection member which is rotatably connected to one end of the first shaft and to which one end of the second shaft is connected, wherein the grinder mounting member is attachable and detachable to and from a grinder, and the grinder mounting member includes an opening opened toward the working surface, and a work supporting surface configured to come into contact with the working surface.
- FIG. 1 is a perspective view illustrating a punching assistant device according to an embodiment of the disclosure.
- FIG. 2 is an exploded perspective view illustrating the punching assistant device according to the embodiment of the disclosure.
- FIG. 3 is an enlarged view of a part III of the punching assistant device illustrated in FIG. 2 .
- FIG. 4 is a perspective view illustrating a grounder mounting member.
- FIG. 5 is an exploded perspective view of the grounder mounting member.
- FIG. 6 is a side view illustrating a receiving portion of the grinder mounting member when viewed in a VI direction illustrated in FIG. 5 .
- FIG. 7 is a perspective view illustrating a state in which a grinder is coupled to the punching assistant device.
- FIG. 8 is a perspective view illustrating that the length of a first shaft is changed.
- FIGS. 9 is perspective views illustrating a process in which the punching assistant device is folded.
- FIGS. 10 is perspective views illustrating a process in which the punching assistant device is folded.
- FIGS. 11 is perspective views illustrating a modified embodiment of the punching assistant device.
- FIGS. 12 is perspective views illustrating a modified embodiment of the punching assistant device.
- constituent element when a constituent element is referred to as being “on” or connected to” another element, it may be directly connected or directly coupled to another constituent element, or an intervening constituent element may be consisted therebetween. In contrast, when a constituent element is referred to as being “directly on” or “directly connected to” another constituent element, no intervening constituent element is consisited therebetween. Other expressions describing relationships between constituent elements such as “between A and B” and “directly between A and B” may be construed similarly.
- first and second may be used to describe various constituent elements, but the constituent elements are not to be construed as being limited to the terms. The terms are only used to differentiate one constituent element from another constituent element.
- first constituent element may be named the “second” constituent element without being departed from the scope of the disclosure and the “second” constituent element may also be similarly named the “first” constituent element .
- FIG. 1 is a perspective view illustrating a punching assistant device 1 according to an embodiment of the disclosure
- FIG. 2 is an exploded perspective view illustrating the punching assistant device 1 according to the embodiment of the disclosure
- FIG. 3 is an enlarged view of a part III of the punching assistant device 1 illustrated in FIG. 2 .
- the punching assistant device 1 includes a first shaft 100 , a second shaft 200 , a connection member 300 , a grinder mounting member 400 , a first fixing member 500 , and a second fixing member 600 .
- the first shaft 100 may be arranged perpendicular to a working surface S (see FIG. 7 ), which is a lower surface of a tex T (see FIG. 7 ) forming a ceiling, and may be arranged perpendicular to a ground surface in a working space. Further, the first shaft 100 may be arranged at the center of an opening to be punched. Therefore, the punching assistant device 1 may rotate around the first shaft 100 to punch a circular opening in the working surface S.
- the first shaft 100 may have a multistage structure in which the length of the first shaft 100 may be changed. Therefore, the length of the first shaft 100 may be adjusted according to a height from a floor to a ceiling in various working spaces, and thus the first shaft 100 may be stably fixed between the floor and the ceiling.
- the first shaft 100 may have a multistage structure including a plurality of shafts combined sequentially along a length direction.
- the first shaft 100 may have a structure in which a plurality of pipes with different diameters are included, and pipes with smaller diameters are sequentially inserted into a pipe with the largest diameter. Accordingly, the length of the first shaft 100 may be changed. As a result, a volume of the punching assistant device 1 is decreased, and thus it may be easy to carry and store the punching assistant device 1 .
- the changed length may be fixed by using various fixing structures such as a bolt fixing structure and a screw fixing structure according to the related art.
- first shaft 100 may be formed of various materials such as a plastic material and a metal material as needed.
- the second shaft 200 is perpendicularly coupled to the first shaft 100 .
- the second shaft 200 may be perpendicularly coupled to the first shaft 100 through the connection member 300 .
- one end 200 a of the second shaft 200 is connected to the connection member 300
- the other end 200 b that is opposite to the one end 200 a is connected to the grinder mounting member 400 .
- the second shaft 200 may have a length corresponding to a radius of an opening to be punched. Therefore, the length of the second shaft 200 corresponds to the radius of the opening to be punched in the working surface S.
- the second shafts 200 with various lengths may be applied to the punching assistant device 1 depending on a diameter of an opening to be punched.
- the second shaft 200 may also have a structure in which the length of the second shaft 200 may be changed, and openings with various diameters may be punched in the working surface S by changing the length of the second shaft 200 .
- the second shaft 200 may be formed of various materials such as a plastic material and a metal material as needed.
- connection member 300 is rotatably connected to one end 100 a of the first shaft 100 , and the one end 200 a of the second shaft 200 is connected to the connection member 300 . Accordingly, the connection member 300 connects the first shaft 100 and the second shaft 200 to each other, and the second shaft 200 may be arranged perpendicular to the first shaft 100 . Further, the connection member 300 is rotatably connected to the first shaft 100 , and thus the second shaft 200 may rotate around the first shaft 100 .
- connection member 300 includes a first portion 301 , a second portion 302 , and a hinge shaft 303 .
- the first portion 301 is rotatably connected to the one end 100 a of the first shaft 100 .
- the first portion 301 includes a first insertion port 301 a into which the one end 100 a of the first shaft 100 may be inserted.
- An inner diameter D 2 of the first insertion port 301 a is larger than an outer diameter D 1 of the one end 100 a of the first shaft 100 . Therefore, the one end 100 a of the first shaft 100 may be inserted into the first insertion port 301 a of the first portion 301 , and the first portion 301 may rotate around the first shaft 100 .
- the second portion 302 is pivotably coupled to the hinge shaft 303 coupled to the first portion 301 , and the one end 200 a of the second shaft 200 is fitted into the second portion 302 . Accordingly, the second portion 302 may pivot (in an R direction of FIG. 9 ) around the hinge shaft 303 to make the second shaft 200 overlap with the first shaft 100 .
- the grinder mounting member 400 may be connected to the second shaft 200 to rotate around the first shaft 100 . Therefore, as the grinder mounting member 400 rotates around the first shaft 100 in a state in which a general cutting machine such as a grinder G (see FIG. 7 ) is mounted on the grinder mounting member 400 , it is possible to easily punch a circular opening in the working surface S by using the grinder G rotating around the first shaft 100 .
- the grinder G is the same as or similar to that according to a general technology. Therefore, a description thereof will be omitted, and a specific structure of the grinder mounting member 400 will be described later.
- first fixing member 500 is coupled to the one end 100 a of the first shaft 100
- second fixing member 600 is coupled to the other end 100 b that is opposite to the one end 100 a.
- the first fixing member 500 is coupled to the one end 100 a of the first shaft 100 and comes into contact with the working surface S.
- the first fixing member 500 includes an insertion portion 501 , a first supporting surface 502 , and a fixing pin 503 .
- the insertion portion 501 has an outer diameter D 4 smaller than the inner diameter D 2 of the first insertion port 301 a , and is inserted into the first insertion port 301 a .
- a second insertion port 501 a with an inner diameter D 3 larger than the outer diameter D 1 of the one end 100 a of the first shaft 100 is formed in the insertion portion 501 . Therefore, the one end 100 a of the first shaft 100 a is inserted into the second insertion port 501 a in a state in which the insertion portion 501 is inserted into the first insertion port 301 a.
- the first fixing member 500 and the connection member 300 may integrally rotate around the first shaft 100 .
- the outer diameter D 1 of the one end 100 a of the first shaft 100 is smaller than the inner diameter D 3 of the second insertion port 501 a . Therefore, the connection member 300 and the first fixing member 500 may integrally rotate around the fixed first shaft 100 by using a gap between the outer diameter D 1 of the one end 100 a and the inner diameter D 3 of the second insertion port 501 a.
- connection member 300 may rotate around the first shaft 100 in a state in which the first shaft 100 and the first fixing member 500 are integrally fixed, by using a gap between the outer diameter D 4 of the insertion port 501 and the inner diameter D 2 of the first insertion port 301 a.
- a bearing (not illustrated) may be arranged between the one end 100 a of the first shaft 100 and the second insertion port 501 a of the first fixing member 500 to allow the connection member 300 to rotate around the first shaft 100 , as needed.
- the first supporting surface 502 is formed integrally with the insertion portion 501 and has a diameter larger than the diameter of the first shaft 100 .
- the first supporting surface 502 comes into contact with the working surface S, and may have a diameter larger than the outer diameter D 1 of the first shaft 100 to enable stable fixation of the first shaft 100 to the working surface S.
- the first supporting surface 502 may have various shapes each with an area larger than an area of a circle with the outer diameter D 1 of the first shaft 100 as needed.
- the fixing pin 503 may be arranged on the upper side of the first supporting surface 502 and penetrate through the working surface S. Therefore, the first shaft 100 may be stably fixed to the working surface S.
- the fixing pin 503 is arranged at the center of an opening to be punched in the working surface S, and may penetrate through the center of the opening to be punched.
- the second fixing member 600 is coupled to the other end 100 b of the first shaft 100 that is opposite to the one end 100 a.
- the second fixing member 600 includes a second supporting surface 601 , a second insertion portion 602 , and a protruding portion 603 .
- the second supporting surface 601 may have a diameter larger than a diameter of the other end 100 b of the first shaft 100 to enable stable support of the first shaft 100 to the floor of the working space.
- the second supporting surface 601 may have various shapes each with an area larger than an area of a circle with the diameter of the other end 100 b of the first shaft 100 as needed.
- the second insertion portion 602 is formed integrally with the second supporting surface 601 , and inserted into the other end 100 b of the first shaft 100 to connect the first shaft 100 and the second fixing member 600 to each other.
- the protruding portion 603 protrudes along an outer circumferential surface of the second insertion portion 602 and comes into contact with the other end 100 b of the first shaft 100 to support the first shaft 100 .
- FIG. 4 is a perspective view illustrating the grounder mounting member 400
- FIG. 5 is an exploded perspective view of the grounder mounting member 400
- FIG. 6 is a side view illustrating a receiving portion of the grinder mounting member when viewed in a VI direction illustrated in FIG. 5 .
- the grinder mounting member 400 may be coupled to the other end 200 b of the second shaft 200 and rotate around the first shaft 100 . Further, the grinder mounting member 400 may rotate around the first shaft 100 in a state in which the grinder G is mounted, to punch an opening in the working surface S.
- the grinder mounting member 400 includes a cover portion 410 and a receiving portion 420 that includes a receiving space 403 .
- the receiving space 403 includes a first opening 401 that is opened toward the working space S, and a second opening 402 which communicates with the first opening 402 and into which the grinder G may be inserted.
- a blade of the grinder G may protrude toward the working surface S through the first opening 401 .
- the first opening 401 may have various shapes as needed as long as the blade of the grinder 5 may protrude through the first opening 401 .
- the second opening 402 may have a shape corresponding to an outward shape of the grinder G.
- the cover portion 410 is detachably coupled to the receiving portion 420 , and covers a part of the second opening 402 . Therefore, in case that the grinder G is coupled to the grinder mounting member 400 and punching is performed on the working surface S, the cover portion 410 may prevent scattered materials generated in a punching process from being scattered to the outside of the grinder mounting member 400 through the second opening 402 .
- the cover portion 410 may have various shapes as long as it is possible to prevent the scattered materials from being scattered to the outside of the grinder mounting member 400 .
- the receiving portion 420 forms an appearance of the grinder mounting member 400 , and includes the receiving space 403 , a work supporting surface 404 , a dust discharge port 405 , a seating surface 406 , a supporting portion 407 , a coupling opening 408 , and a bolt coupling opening 409 .
- the work supporting surface 404 comes into contact with the working surface S and is formed of a flat plate with a predetermined area. Therefore, in case that the grinder G is mounted on the grinder mounting member 400 , and punching is performed on the working surface S, the working surface S is positioned on the work supporting surface 404 , and thus punching may be performed in a state in which the working surface S is stably supported.
- the dust discharge port 405 is formed on one side of the receiving portion 420 and communicates with the receiving space 403 .
- the dust discharge port 405 may discharge the scattered materials generated in the punching process to the outside of the receiving portion 420 . Further, the dust discharge port 405 may be connected to an external suction device (not illustrated) such as a cleaner to more easily discharge the scattered materials.
- the seating surface 406 may come into contact with an external housing (not illustrated) of the grinder G, and thus the grinder G may be stably fixed to the grinder mounting member 400 .
- the seating surface 406 may have various shapes that may fix the external housing of the grinder G by coming into contact with the external housing of the grinder G.
- the supporting portion 407 may protrude from the seating surface 406 toward the receiving space 403 , and the number of supporting portions 407 may be at least one.
- the at least one supporting portion 407 may interfere with the external housing of the grinder G to stably fix the grinder G to the grinder mounting member 400 .
- the supporting portion 407 is fitted into the external housing of the grinder G seated on the seating surface 406 to stably fix the grinder G in the receiving space 403 .
- the coupling opening 408 may connect the grinder mounting member 400 and the second shaft 200 to each other.
- the bolt coupling opening 409 is formed on one side of the receiving portion 420 and communicates with the receiving space 403 .
- the number of bolt coupling openings 409 may be at least one.
- a general bolt (not illustrated) is coupled to the bolt coupling opening 409 , the bolt may come into contact with the external housing of the grinder G mounted on the grinder mounting member 400 to stably fix the grinder G in the grinder mounting member 400 .
- FIG. 7 is a perspective view illustrating a state in which the grinder G is coupled to the punching assistant device 1 .
- the first shaft 100 is arranged perpendicular to the tex T by adjusting the length of the first shaft 100 according to a height between the tex T and the floor, the tex T forming the ceiling.
- the fixing pin 503 of the first fixing member 500 connected to the one end 100 a of the first shaft 100 penetrates through the tex T, and thus the first shaft 100 may be more stably fixed to the tex T.
- the grinder G is mounted on the grinder mounting member 400 , and the grinder G coupled to the grinder mounting member 400 rotates around the first shaft 100 in a state in which the work supporting surface 404 is in contact with the working surface S, thereby cutting the working surface S.
- an opening with a radius corresponding to the length of the second shaft 200 may be formed.
- the tex T forming the ceiling may be conveniently and accurately punched with a hole with a shape corresponding to the circular track C, and a desired product may be installed in the punched portion.
- the general grinder G may be detachably mounted on the punching assistant device 1 , and thus no additional cost for a separate punch is not required.
- FIG. 8 is a perspective view illustrating that the length of the first shaft 100 is changed.
- the first shaft 100 has a multistage structure comprising pipes with different outer diameters, and pipes with smaller outer diameters may be inserted into a pipe with the largest outer diameter.
- a part of the first shaft 100 may be inserted in a Q direction to adjust the height of the first shaft 100 , and the punching assistant device 1 may be used for various heights.
- FIGS. 9 and 10 are perspective views illustrating a process in which the punching assistant device 1 is folded.
- the length of the first shaft 100 may be changed.
- the first shaft 100 may include pipes with different diameters, and pipes with smaller diameters may be sequentially inserted into a pipe with the largest diameter.
- pipes included in the first shaft 100 may be inserted into a pipe with the largest pipe as illustrated in FIG. 9 .
- the second shaft 200 connected to the connection member 300 may pivot around the hinge shaft 303 of the connection member 300 along an R direction, and the punching assistant device 1 may be in a folded state as illustrated in FIG. 10 .
- the volume of the punching assistant device 1 is minimized, and thus a worker may easily carry and store the punching assistant device 1 .
- FIGS. 11 and 12 are perspective views illustrating a modified embodiment of the disclosure.
- the punching assistant device 1 ′ illustrated in FIGS. 11 and 12 includes the same components as the first shaft 100 , the connection member 300 , the grinder mounting member 400 , the first fixing member 500 , and the second fixing member 600 of the punching assistant device 1 illustrated in FIG. 1 , and an overlapping description thereof will be omitted.
- a second shaft 200 ′ may have a multistage structure including a plurality of shafts combined sequentially along a length direction.
- the second shaft 200 ′ may have a structure in which a plurality of pipes with different diameters are included, and pipes with smaller diameters are sequentially inserted into a pipe with the largest diameter. Therefore, the length of the second shaft 200 ′ may be changed.
- the changed length may be fixed by using various fixing structures such as a bolt fixing structure and a screw fixing structure according to the related art.
- openings with various diameters may be punched in the working surface S by changing the length of the second shaft 200 ′. Therefore, the punching assistant device 1 ′ on which the grinder G is mounted may form an opening in the working surface S in consideration of various sizes of products to be installed.
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- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
Description
- This application is a 371 of International Application No. PCT/KR2019/000027 filed on Jan. 2, 2019, which claims priority to Korean Patent Application No. 10-2018-0029215 filed on Mar. 13, 2018, the disclosures of which are herein incorporated by reference in their entirety.
- The disclosure relates to a punching assistant device that is portable due to a light weight and enables convenient and precise punching.
- Recently, for space utilization and aesthetic reasons, punching is performed on an interior ceiling formed of a tex or an integral type panel, and a product is installed in a punched hole.
- To this end, according to the related art, in case of performing punching on an interior ceiling, the punching has been performed in a manner in which a worker draws, on the ceiling, a rough sketch of a circle to be punched, and directly cuts a part of the ceiling based on the rough sketch of the circle drawn on the ceiling.
- However, with such a punching method according to the related art, it is difficult for the worker to manually and accurately perform punching based on the rough sketch of the circle, and precision of the punched circle varies depending on skill of the worker. Particularly, in case that the worker cuts the ceiling based on the rough sketch of the circle by using a grinder, which is a generally used punch, to perform punching, it is difficult to perform precise punching due to the grinder which tends to move in straight line.
- A disclosure is providing a punching assistant device that enables accurate punching of a circle in a ceiling with a grinder, which is a punch generally used.
- And the disclosure is providing a punching assistant device with minimized volume.
- According to an embodiment of the disclosure, a punching assistant device includes: a first shaft arranged perpendicular to a working surface; a second shaft perpendicularly coupled to the first shaft; and a grinder mounting member coupled to the second shaft, wherein the grinder mounting member is rotatable around the first shaft.
- The grinder mounting member may include a first opening opened toward the working surface, and a second opening which communicates with the first opening and into which a grinder is insertable.
- The grinder mounting member may include a receiving portion coupled to the second shaft, and including a receiving space that includes the first opening and the second opening, and a cover portion detachably coupled to the receiving portion and covering a part of the second opening.
- The receiving portion may include a work supporting surface that comes into contact with the working surface.
- The receiving portion may include a dust discharge port communicating with the receiving space.
- The receiving portion may include a coupling hole into which the second shaft is inserted and coupled.
- The punching assistant device may further include a connection member which is rotatably connected to one end of the first shaft and to which one end of the second shaft is connected.
- The connection member may include a first portion rotatably connected to the one end of the first shaft, a hinge shaft coupled to the first portion, and a second portion which is pivotably coupled to the hinge shaft and to which the one end of the second shaft is connected.
- At least one of the first shaft or the second shaft may have a multistage structure in which a length is changeable.
- The punching assistant device may further include a first fixing member coupled to one end of the first shaft and coming into contact with the working surface.
- The first fixing member may include a fixing pin penetrating through the working surface.
- The first fixing member may include a first supporting surface on which the fixing pin is arranged and which has a diameter larger than a diameter of the one end of the first shaft.
- The punching assistant device may further include a second fixing member coupled to the other end of the first shaft that is opposite to one end of the first shaft, and including a second supporting surface with a diameter larger than a diameter of the other end of the first shaft.
- The receiving portion may include at least one supporting portion protruding toward the receiving space.
- According to another embodiment of the disclosure, a punching assistant device includes: a first shaft arranged perpendicular to a working surface; a second shaft perpendicularly coupled to the first shaft; a grinder mounting member coupled to the second shaft; and a connection member which is rotatably connected to one end of the first shaft and to which one end of the second shaft is connected, wherein the grinder mounting member is attachable and detachable to and from a grinder, and the grinder mounting member includes an opening opened toward the working surface, and a work supporting surface configured to come into contact with the working surface.
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FIG. 1 is a perspective view illustrating a punching assistant device according to an embodiment of the disclosure. -
FIG. 2 is an exploded perspective view illustrating the punching assistant device according to the embodiment of the disclosure. -
FIG. 3 is an enlarged view of a part III of the punching assistant device illustrated inFIG. 2 . -
FIG. 4 is a perspective view illustrating a grounder mounting member. -
FIG. 5 is an exploded perspective view of the grounder mounting member. -
FIG. 6 is a side view illustrating a receiving portion of the grinder mounting member when viewed in a VI direction illustrated inFIG. 5 . -
FIG. 7 is a perspective view illustrating a state in which a grinder is coupled to the punching assistant device. -
FIG. 8 is a perspective view illustrating that the length of a first shaft is changed. -
FIGS. 9 is perspective views illustrating a process in which the punching assistant device is folded. -
FIGS. 10 is perspective views illustrating a process in which the punching assistant device is folded. -
FIGS. 11 is perspective views illustrating a modified embodiment of the punching assistant device. -
FIGS. 12 is perspective views illustrating a modified embodiment of the punching assistant device. - In order to allow full understanding of configurations and effects according to the disclosure, embodiments of the disclosure will be described with reference to the accompanying drawings. The disclosure may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, and various modifications may be made. It should be understood, however, that the description of the embodiments is provided to enable the disclosure of the disclosure to be complete, and will fully convey the scope of the disclosure to a person having ordinary skill in the art to which the disclosure pertains. In the accompanying drawings, the constituent elements are enlarged in size for convenience of explanation and the proportion of each constituent element may be exaggerated or reduced.
- It will be understood that when a constituent element is referred to as being “on” or connected to” another element, it may be directly connected or directly coupled to another constituent element, or an intervening constituent element may be consisted therebetween. In contrast, when a constituent element is referred to as being “directly on” or “directly connected to” another constituent element, no intervening constituent element is consisited therebetween. Other expressions describing relationships between constituent elements such as “between A and B” and “directly between A and B” may be construed similarly.
- Terms such as “first” and “second” may be used to describe various constituent elements, but the constituent elements are not to be construed as being limited to the terms. The terms are only used to differentiate one constituent element from another constituent element. For example, the “first” constituent element may be named the “second” constituent element without being departed from the scope of the disclosure and the “second” constituent element may also be similarly named the “first” constituent element .
- Singular forms are intended to include plural forms unless the context clearly indicates otherwise. Terms “include” or “have” used in the specification are to specify the presence of stated features, numerals, steps, operations, components, parts, or a combination thereof, and it may be construed that addition of one or more other features, numerals, steps, operations, components, parts, or a combination thereof is possible.
- Unless otherwise defined, all terms used in the embodiments of the disclosure have the same meaning as commonly understood by a person having ordinary skills in the art to which the disclosure pertains.
-
FIG. 1 is a perspective view illustrating apunching assistant device 1 according to an embodiment of the disclosure,FIG. 2 is an exploded perspective view illustrating thepunching assistant device 1 according to the embodiment of the disclosure, andFIG. 3 is an enlarged view of a part III of thepunching assistant device 1 illustrated inFIG. 2 . - Hereinafter, a structure of the
punching assistant device 1 according to the embodiment of the disclosure will be described with reference toFIGS. 1 to 3 . - The
punching assistant device 1 includes afirst shaft 100, asecond shaft 200, aconnection member 300, agrinder mounting member 400, afirst fixing member 500, and asecond fixing member 600. - The
first shaft 100 may be arranged perpendicular to a working surface S (seeFIG. 7 ), which is a lower surface of a tex T (seeFIG. 7 ) forming a ceiling, and may be arranged perpendicular to a ground surface in a working space. Further, thefirst shaft 100 may be arranged at the center of an opening to be punched. Therefore, thepunching assistant device 1 may rotate around thefirst shaft 100 to punch a circular opening in the working surface S. - The
first shaft 100 may have a multistage structure in which the length of thefirst shaft 100 may be changed. Therefore, the length of thefirst shaft 100 may be adjusted according to a height from a floor to a ceiling in various working spaces, and thus thefirst shaft 100 may be stably fixed between the floor and the ceiling. - The
first shaft 100 may have a multistage structure including a plurality of shafts combined sequentially along a length direction. For example, thefirst shaft 100 may have a structure in which a plurality of pipes with different diameters are included, and pipes with smaller diameters are sequentially inserted into a pipe with the largest diameter. Accordingly, the length of thefirst shaft 100 may be changed. As a result, a volume of the punchingassistant device 1 is decreased, and thus it may be easy to carry and store the punchingassistant device 1. In the multistage structure of thefirst shaft 100, the changed length may be fixed by using various fixing structures such as a bolt fixing structure and a screw fixing structure according to the related art. - Further, the
first shaft 100 may be formed of various materials such as a plastic material and a metal material as needed. - The
second shaft 200 is perpendicularly coupled to thefirst shaft 100. Thesecond shaft 200 may be perpendicularly coupled to thefirst shaft 100 through theconnection member 300. - Specifically, one
end 200 a of thesecond shaft 200 is connected to theconnection member 300, and theother end 200 b that is opposite to the oneend 200 a is connected to thegrinder mounting member 400. - The
second shaft 200 may have a length corresponding to a radius of an opening to be punched. Therefore, the length of thesecond shaft 200 corresponds to the radius of the opening to be punched in the working surface S. - Further, the
second shafts 200 with various lengths may be applied to the punchingassistant device 1 depending on a diameter of an opening to be punched. - Further, similarly to the
first shaft 100, thesecond shaft 200 may also have a structure in which the length of thesecond shaft 200 may be changed, and openings with various diameters may be punched in the working surface S by changing the length of thesecond shaft 200. - The
second shaft 200 may be formed of various materials such as a plastic material and a metal material as needed. - Referring to
FIG. 3 , theconnection member 300 is rotatably connected to oneend 100 a of thefirst shaft 100, and the oneend 200 a of thesecond shaft 200 is connected to theconnection member 300. Accordingly, theconnection member 300 connects thefirst shaft 100 and thesecond shaft 200 to each other, and thesecond shaft 200 may be arranged perpendicular to thefirst shaft 100. Further, theconnection member 300 is rotatably connected to thefirst shaft 100, and thus thesecond shaft 200 may rotate around thefirst shaft 100. - Specifically, the
connection member 300 includes afirst portion 301, asecond portion 302, and ahinge shaft 303. - The
first portion 301 is rotatably connected to the oneend 100 a of thefirst shaft 100. - Specifically, the
first portion 301 includes afirst insertion port 301 a into which the oneend 100 a of thefirst shaft 100 may be inserted. - An inner diameter D2 of the
first insertion port 301 a is larger than an outer diameter D1 of the oneend 100 a of thefirst shaft 100. Therefore, the oneend 100 a of thefirst shaft 100 may be inserted into thefirst insertion port 301 a of thefirst portion 301, and thefirst portion 301 may rotate around thefirst shaft 100. - The
second portion 302 is pivotably coupled to thehinge shaft 303 coupled to thefirst portion 301, and the oneend 200 a of thesecond shaft 200 is fitted into thesecond portion 302. Accordingly, thesecond portion 302 may pivot (in an R direction ofFIG. 9 ) around thehinge shaft 303 to make thesecond shaft 200 overlap with thefirst shaft 100. - The
grinder mounting member 400 may be connected to thesecond shaft 200 to rotate around thefirst shaft 100. Therefore, as thegrinder mounting member 400 rotates around thefirst shaft 100 in a state in which a general cutting machine such as a grinder G (seeFIG. 7 ) is mounted on thegrinder mounting member 400, it is possible to easily punch a circular opening in the working surface S by using the grinder G rotating around thefirst shaft 100. The grinder G is the same as or similar to that according to a general technology. Therefore, a description thereof will be omitted, and a specific structure of thegrinder mounting member 400 will be described later. - Further, the first fixing
member 500 is coupled to the oneend 100 a of thefirst shaft 100, and the second fixingmember 600 is coupled to theother end 100 b that is opposite to the oneend 100 a. - The
first fixing member 500 is coupled to the oneend 100 a of thefirst shaft 100 and comes into contact with the working surface S. - Specifically, the first fixing
member 500 includes aninsertion portion 501, a first supportingsurface 502, and a fixingpin 503. - The
insertion portion 501 has an outer diameter D4 smaller than the inner diameter D2 of thefirst insertion port 301 a, and is inserted into thefirst insertion port 301 a. Asecond insertion port 501 a with an inner diameter D3 larger than the outer diameter D1 of the oneend 100 a of thefirst shaft 100 is formed in theinsertion portion 501. Therefore, the oneend 100 a of thefirst shaft 100 a is inserted into thesecond insertion port 501 a in a state in which theinsertion portion 501 is inserted into thefirst insertion port 301 a. - Further, in case that the
insertion portion 501 is fitted into thefirst insertion port 301 a, the first fixingmember 500 and theconnection member 300 may integrally rotate around thefirst shaft 100. - In addition, the outer diameter D1 of the one
end 100 a of thefirst shaft 100 is smaller than the inner diameter D3 of thesecond insertion port 501 a. Therefore, theconnection member 300 and the first fixingmember 500 may integrally rotate around the fixedfirst shaft 100 by using a gap between the outer diameter D1 of the oneend 100 a and the inner diameter D3 of thesecond insertion port 501 a. - In addition, in case that the outer diameter D1 of the one
end 100 a of thefirst shaft 100 is similar to the inner diameter D3 of thesecond insertion port 501 a, the oneend 100 a of thefirst shaft 100 is thus fitted into thesecond insertion port 501 a, and an additional protruding portion (not illustrated) for interfering with and supporting theconnection member 300 is formed along an outer circumferential surface on the lower side of theinsertion portion 501, theconnection member 300 may rotate around thefirst shaft 100 in a state in which thefirst shaft 100 and the first fixingmember 500 are integrally fixed, by using a gap between the outer diameter D4 of theinsertion port 501 and the inner diameter D2 of thefirst insertion port 301 a. - However, a bearing (not illustrated) may be arranged between the one
end 100 a of thefirst shaft 100 and thesecond insertion port 501 a of the first fixingmember 500 to allow theconnection member 300 to rotate around thefirst shaft 100, as needed. - The first supporting
surface 502 is formed integrally with theinsertion portion 501 and has a diameter larger than the diameter of thefirst shaft 100. - Specifically, the first supporting
surface 502 comes into contact with the working surface S, and may have a diameter larger than the outer diameter D1 of thefirst shaft 100 to enable stable fixation of thefirst shaft 100 to the working surface S. - However, the first supporting
surface 502 may have various shapes each with an area larger than an area of a circle with the outer diameter D1 of thefirst shaft 100 as needed. - The fixing
pin 503 may be arranged on the upper side of the first supportingsurface 502 and penetrate through the working surface S. Therefore, thefirst shaft 100 may be stably fixed to the working surface S. - The fixing
pin 503 is arranged at the center of an opening to be punched in the working surface S, and may penetrate through the center of the opening to be punched. - The
second fixing member 600 is coupled to theother end 100 b of thefirst shaft 100 that is opposite to the oneend 100 a. - Specifically, the second fixing
member 600 includes a second supportingsurface 601, asecond insertion portion 602, and a protrudingportion 603. - The second supporting
surface 601 may have a diameter larger than a diameter of theother end 100 b of thefirst shaft 100 to enable stable support of thefirst shaft 100 to the floor of the working space. However, the second supportingsurface 601 may have various shapes each with an area larger than an area of a circle with the diameter of theother end 100 b of thefirst shaft 100 as needed. - The
second insertion portion 602 is formed integrally with the second supportingsurface 601, and inserted into theother end 100 b of thefirst shaft 100 to connect thefirst shaft 100 and the second fixingmember 600 to each other. - The protruding
portion 603 protrudes along an outer circumferential surface of thesecond insertion portion 602 and comes into contact with theother end 100 b of thefirst shaft 100 to support thefirst shaft 100. -
FIG. 4 is a perspective view illustrating thegrounder mounting member 400,FIG. 5 is an exploded perspective view of thegrounder mounting member 400, andFIG. 6 is a side view illustrating a receiving portion of the grinder mounting member when viewed in a VI direction illustrated inFIG. 5 . - Hereinafter, a specific structure of the
grinder mounting member 400 will be described with reference toFIGS. 4 to 6 . - As described above, the
grinder mounting member 400 may be coupled to theother end 200 b of thesecond shaft 200 and rotate around thefirst shaft 100. Further, thegrinder mounting member 400 may rotate around thefirst shaft 100 in a state in which the grinder G is mounted, to punch an opening in the working surface S. - The
grinder mounting member 400 includes acover portion 410 and a receivingportion 420 that includes a receivingspace 403. - Specifically, the receiving
space 403 includes afirst opening 401 that is opened toward the working space S, and asecond opening 402 which communicates with thefirst opening 402 and into which the grinder G may be inserted. - In case that the grinder G is coupled to the
first opening 401, a blade of the grinder G may protrude toward the working surface S through thefirst opening 401. Thefirst opening 401 may have various shapes as needed as long as the blade of the grinder 5 may protrude through thefirst opening 401. - The
second opening 402 may have a shape corresponding to an outward shape of the grinder G. - The
cover portion 410 is detachably coupled to the receivingportion 420, and covers a part of thesecond opening 402. Therefore, in case that the grinder G is coupled to thegrinder mounting member 400 and punching is performed on the working surface S, thecover portion 410 may prevent scattered materials generated in a punching process from being scattered to the outside of thegrinder mounting member 400 through thesecond opening 402. - In case that the grinder G is coupled to the
grinder mounting member 400, thecover portion 410 may have various shapes as long as it is possible to prevent the scattered materials from being scattered to the outside of thegrinder mounting member 400. - The receiving
portion 420 forms an appearance of thegrinder mounting member 400, and includes the receivingspace 403, awork supporting surface 404, adust discharge port 405, aseating surface 406, a supportingportion 407, acoupling opening 408, and abolt coupling opening 409. - The
work supporting surface 404 comes into contact with the working surface S and is formed of a flat plate with a predetermined area. Therefore, in case that the grinder G is mounted on thegrinder mounting member 400, and punching is performed on the working surface S, the working surface S is positioned on thework supporting surface 404, and thus punching may be performed in a state in which the working surface S is stably supported. - The
dust discharge port 405 is formed on one side of the receivingportion 420 and communicates with the receivingspace 403. Thedust discharge port 405 may discharge the scattered materials generated in the punching process to the outside of the receivingportion 420. Further, thedust discharge port 405 may be connected to an external suction device (not illustrated) such as a cleaner to more easily discharge the scattered materials. - The
seating surface 406 may come into contact with an external housing (not illustrated) of the grinder G, and thus the grinder G may be stably fixed to thegrinder mounting member 400. Theseating surface 406 may have various shapes that may fix the external housing of the grinder G by coming into contact with the external housing of the grinder G. - The supporting
portion 407 may protrude from theseating surface 406 toward the receivingspace 403, and the number of supportingportions 407 may be at least one. The at least one supportingportion 407 may interfere with the external housing of the grinder G to stably fix the grinder G to thegrinder mounting member 400. For example, the supportingportion 407 is fitted into the external housing of the grinder G seated on theseating surface 406 to stably fix the grinder G in the receivingspace 403. - As illustrated in
FIG. 6 , as thecoupling opening 408 is formed on the outer side of the receivingportion 420, and theother end 200 b of thesecond shaft 200 is inserted into thecoupling opening 408, theother end 200 b of thesecond shaft 200 is fitted into thecoupling opening 408. As a result, thecoupling opening 408 may connect thegrinder mounting member 400 and thesecond shaft 200 to each other. - The
bolt coupling opening 409 is formed on one side of the receivingportion 420 and communicates with the receivingspace 403. The number ofbolt coupling openings 409 may be at least one. In case that a general bolt (not illustrated) is coupled to thebolt coupling opening 409, the bolt may come into contact with the external housing of the grinder G mounted on thegrinder mounting member 400 to stably fix the grinder G in thegrinder mounting member 400. -
FIG. 7 is a perspective view illustrating a state in which the grinder G is coupled to the punchingassistant device 1. - Hereinafter, a punching process using the punching
assistant device 1 to which the grinder G is coupled will be described in detail with reference toFIG. 7 . - First, the
first shaft 100 is arranged perpendicular to the tex T by adjusting the length of thefirst shaft 100 according to a height between the tex T and the floor, the tex T forming the ceiling. Here, the fixingpin 503 of the first fixingmember 500 connected to the oneend 100 a of thefirst shaft 100 penetrates through the tex T, and thus thefirst shaft 100 may be more stably fixed to the tex T. - Then, the grinder G is mounted on the
grinder mounting member 400, and the grinder G coupled to thegrinder mounting member 400 rotates around thefirst shaft 100 in a state in which thework supporting surface 404 is in contact with the working surface S, thereby cutting the working surface S. - Specifically, as the
grinder mounting member 400 and the grinder G rotate in a P direction along a circular track C illustrated inFIG. 7 , an opening with a radius corresponding to the length of thesecond shaft 200 may be formed. - Therefore, the tex T forming the ceiling may be conveniently and accurately punched with a hole with a shape corresponding to the circular track C, and a desired product may be installed in the punched portion. Further, the general grinder G may be detachably mounted on the punching
assistant device 1, and thus no additional cost for a separate punch is not required. -
FIG. 8 is a perspective view illustrating that the length of thefirst shaft 100 is changed. - Hereinafter, a state in which the length of the
first shaft 100 is changed will be described in detail with reference toFIG. 8 . - As described above, the
first shaft 100 has a multistage structure comprising pipes with different outer diameters, and pipes with smaller outer diameters may be inserted into a pipe with the largest outer diameter. - Therefore, in case that the height from the floor to the ceiling is lower, a part of the
first shaft 100 may be inserted in a Q direction to adjust the height of thefirst shaft 100, and the punchingassistant device 1 may be used for various heights. -
FIGS. 9 and 10 are perspective views illustrating a process in which the punchingassistant device 1 is folded. - Hereinafter, a process in which the punching
assistant device 1 is folded for portability will be described in detail with reference toFIGS. 9 and 10 . - As described above, the length of the
first shaft 100 may be changed. Specifically, thefirst shaft 100 may include pipes with different diameters, and pipes with smaller diameters may be sequentially inserted into a pipe with the largest diameter. - In the punching
assistant device 1 in a state illustrated inFIG. 1 , pipes included in thefirst shaft 100 may be inserted into a pipe with the largest pipe as illustrated inFIG. 9 . Then, thesecond shaft 200 connected to theconnection member 300 may pivot around thehinge shaft 303 of theconnection member 300 along an R direction, and the punchingassistant device 1 may be in a folded state as illustrated inFIG. 10 . - As a result, the volume of the punching
assistant device 1 is minimized, and thus a worker may easily carry and store the punchingassistant device 1. -
FIGS. 11 and 12 are perspective views illustrating a modified embodiment of the disclosure. - Hereinafter, a punching
assistant device 1′ according to a modified embodiment will be described in detail with reference toFIGS. 11 and 12 . - The punching
assistant device 1′ illustrated inFIGS. 11 and 12 includes the same components as thefirst shaft 100, theconnection member 300, thegrinder mounting member 400, the first fixingmember 500, and the second fixingmember 600 of the punchingassistant device 1 illustrated inFIG. 1 , and an overlapping description thereof will be omitted. - A
second shaft 200′ may have a multistage structure including a plurality of shafts combined sequentially along a length direction. For example, thesecond shaft 200′ may have a structure in which a plurality of pipes with different diameters are included, and pipes with smaller diameters are sequentially inserted into a pipe with the largest diameter. Therefore, the length of thesecond shaft 200′ may be changed. In the multistage structure of thesecond shaft 200′, the changed length may be fixed by using various fixing structures such as a bolt fixing structure and a screw fixing structure according to the related art. - Accordingly, in case that the length of the
second shaft 200′ is minimized, a volume of the punchingassistant device 1′ is decreased, and thus it may be easy to carry and store the punchingassistant device 1′. - In addition, as described above, openings with various diameters may be punched in the working surface S by changing the length of the
second shaft 200′. Therefore, the punchingassistant device 1′ on which the grinder G is mounted may form an opening in the working surface S in consideration of various sizes of products to be installed. - Although the various embodiments of the disclosure have been individually described hereinabove, the respective embodiments are not necessarily implemented singly, but may also be implemented so that configurations and operations thereof are combined with those of one or more other embodiments.
- Although embodiments of the disclosure have been illustrated and described hereinabove, the disclosure is not limited to the abovementioned specific embodiments, but may be variously modified by those skilled in the art to which the disclosure pertains without departing from the gist of the disclosure as disclosed in the accompanying claims. These modifications should also be understood to fall within the scope and spirit of the disclosure.
Claims (15)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020180029215A KR102571977B1 (en) | 2018-03-13 | 2018-03-13 | Apparatus for assisting circle cutting |
KR10-2018-0029215 | 2018-03-13 | ||
PCT/KR2019/000027 WO2019177246A1 (en) | 2018-03-13 | 2019-01-02 | Punching assistant device |
Publications (1)
Publication Number | Publication Date |
---|---|
US20210039222A1 true US20210039222A1 (en) | 2021-02-11 |
Family
ID=67907844
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US16/980,333 Pending US20210039222A1 (en) | 2018-03-13 | 2019-01-02 | Punching assistant device |
Country Status (3)
Country | Link |
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US (1) | US20210039222A1 (en) |
KR (1) | KR102571977B1 (en) |
WO (1) | WO2019177246A1 (en) |
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US20070048102A1 (en) * | 2005-08-29 | 2007-03-01 | Tristancho Raphael P L | Arc Cutter For Stone or Ceramic Material |
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US20130081286A1 (en) * | 2011-09-30 | 2013-04-04 | Robert Bosch Gmbh | Base Lever with Release Stop and Lock Stop |
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Also Published As
Publication number | Publication date |
---|---|
KR102571977B1 (en) | 2023-08-30 |
KR20190107904A (en) | 2019-09-23 |
WO2019177246A1 (en) | 2019-09-19 |
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