KR101522826B1 - Cutting apparatus including secondary safety cover - Google Patents

Cutting apparatus including secondary safety cover Download PDF

Info

Publication number
KR101522826B1
KR101522826B1 KR1020140188198A KR20140188198A KR101522826B1 KR 101522826 B1 KR101522826 B1 KR 101522826B1 KR 1020140188198 A KR1020140188198 A KR 1020140188198A KR 20140188198 A KR20140188198 A KR 20140188198A KR 101522826 B1 KR101522826 B1 KR 101522826B1
Authority
KR
South Korea
Prior art keywords
cutter
link
cover
auxiliary
drive shaft
Prior art date
Application number
KR1020140188198A
Other languages
Korean (ko)
Inventor
최이구
Original Assignee
최이구
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 최이구 filed Critical 최이구
Priority to KR1020140188198A priority Critical patent/KR101522826B1/en
Application granted granted Critical
Publication of KR101522826B1 publication Critical patent/KR101522826B1/en

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D45/00—Sawing machines or sawing devices with circular saw blades or with friction saw discs
    • B23D45/16—Hand-held sawing devices with circular saw blades
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D47/00—Sawing machines or sawing devices working with circular saw blades, characterised only by constructional features of particular parts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
    • B25F5/00—Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27B—SAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR
    • B27B5/00—Sawing machines working with circular or cylindrical saw blades; Components or equipment therefor
    • B27B5/16—Saw benches
    • B27B5/18—Saw benches with feedable circular saw blade, e.g. arranged on a carriage
    • B27B5/20—Saw benches with feedable circular saw blade, e.g. arranged on a carriage the saw blade being adjustable according to depth or angle of cut; Radial saws, i.e. sawing machines with a pivoted radial arm for guiding the movable carriage
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16P—SAFETY DEVICES IN GENERAL; SAFETY DEVICES FOR PRESSES
    • F16P3/00—Safety devices acting in conjunction with the control or operation of a machine; Control arrangements requiring the simultaneous use of two or more parts of the body
    • F16P3/08—Safety devices acting in conjunction with the control or operation of a machine; Control arrangements requiring the simultaneous use of two or more parts of the body in connection with the locking of doors, covers, guards, or like members giving access to moving machine parts

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Sawing (AREA)
  • Auxiliary Devices For Machine Tools (AREA)

Abstract

The present invention relates to a cutter comprising an auxiliary safety cover, comprising: a work table; A rotating frame rotatably mounted on the worktable; A motor installed in the rotating frame; And a cutting portion including a cutter rotatably installed on one side of the rotary frame and rotating by the motor, wherein the cutting portion includes a protective cover surrounding a part of an outer circumferential surface of the cutter, The auxiliary safety cover covering the exposed portion of the cutter and moving to open a portion where the cutter of the protective cover is exposed during the downward rotation, and a link connection structure connecting the auxiliary safety cover and the workbench. The cutter is exposed while the cutter is lowered for cutting, and gradually covers the cutter while the cutter is lifted, so that a safety accident can be reliably prevented in the cutting operation.

Description

[0001] CUTTING APPARATUS INCLUDING SECONDARY SAFETY COVER [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cutter including a reinforced safety cover, and more particularly, to a cutter for cutting a cut material, when the auxiliary safety cover covering the outer periphery of the cutter is opened, The auxiliary safety cover being provided with an auxiliary safety cover.

In general, a cutter is a device for cutting a hard cut material such as a metal with a cutter that rotates at high speed.

1, the cutter includes a worktable 100 installed on the floor, a frame 200 having one end fixed to the worktable 100 so as to be rotatable and a switch installed on the other end, A cutter 400 having a cutter 400 installed on one side of the frame 200 and a cutter rotatably installed on a side of the frame 200; And a power transmission portion (not shown) for connection.

The cutting unit 400 is for cutting a workpiece. The cutting unit 400 includes a cutter 410 mounted on a rotary shaft rotatably installed on a side of the frame 200, and a cutter 410 installed to surround the cutter 410 And a protective cover 420. The motor 300 and the cutter 410 are connected to each other through a power transmission unit (not shown).

A guide plate 421 for guiding downward a flame moving along the inner circumferential surface of the cutter 410 when cutting the cut material through the cutter 410 is rotatably installed at the end of the protective cover 420, So that it is prevented from being guided.

When the cutter 410 is rotated, the handle 210 of the frame 200 is rotated downward to cut the object to be cut through the outer peripheral surface of the cutter 410.

The vise 110 and the support plate 130 are horizontally disposed on the upper part of the work table 100. The vise 110 is transferred forward and backward by the manual handle 120 to be positioned between the vise 110 and the support plate 130 Is pressed and fixed.

According to the conventional cutting machine, since the cutter 410 is always exposed in the remaining sections except for the protective cover 420 and the guide plate 421, a safety accident often occurs.

Particularly, there is a case that a finger or a hand touches a rotating cutter 410 to injure an instant when a cutter such as a pipe or the like is cut and then the cutter 410 is raised while feeding the cutter for further cutting.

These accidents are more frequent and should be avoided when working at a night work or in a workshop where visibility is difficult to obtain, and when the worker's fatigue is high.

Korean Patent Registration No. 10-0635125 (October 10, 2006)

SUMMARY OF THE INVENTION The present invention has been conceived to solve the above-mentioned problems of the prior art, and it is an object of the present invention to provide a cutter which is configured to expose a cutter while the cutter descends, And to provide a cutter including an auxiliary safety cover for reliably preventing a safety accident at a time.

In order to achieve the above-mentioned object, a cutting machine including an auxiliary safety cover according to the present invention,

bench;

A rotating frame rotatably mounted on the worktable;

A motor installed in the rotating frame;

A cutter installed in the rotary frame and having a cutter rotated by the motor,

Wherein the cutter covers a part of the outer circumferential surface of the cutter and a portion of the cutter of the protective cover which is exposed when the rotary frame is moved upwards and moves to open a portion where the cutter of the protective cover is exposed, And a link connection structure for connecting the auxiliary safety cover and the workbench.

The auxiliary safety cover includes a first auxiliary cover and a second auxiliary cover which are rotatably installed around a drive shaft on which the cutter is rotatably installed and are arranged to face each other along a circumferential direction of the drive shaft,

The link connection structure includes a first link that is rotatably connected to the first sub cover and a work table and a second link that is rotatably connected to the second sub cover and the first link .

The first link and the second link are disposed on the opposite sides of the portion where the auxiliary safety cover is disposed with respect to the drive shaft when viewed in the direction of the drive shaft.

And a portion of the first link near the drive shaft has a convex shape in the radial direction of the drive shaft.

And one end of the second link is connected to one point of the convex portion of the first link.

A guide hole is formed along the longitudinal direction of the first link so that the first link can move relative to the fixed point of the work table.

And the curvature of the guide hole has a sign opposite to the curvature of the convex portion.

And a slot is formed in the second link such that a moving point of the first link connected to the second link is rotatable relative to the second link.

And the opened portion of the protective cover, through which the cutter of the protective cover is exposed, is formed in a range of 180 degrees or less.

And the maximum height of the first sub cover is higher than the maximum height of the second sub cover when the rotating frame is in the raised position.

And the fixing point is located in front of the rotation center point of the rotary frame.

According to the cutter including the auxiliary safety cover of the above-described configuration, the cutter is exposed while the cutter is lowered for cutting, and gradually covers the cutter while the cutter is lifted to reliably prevent a safety accident in the cutting operation There is an advantage to be able to.

According to the present invention, a guide hole is formed in the first link along the longitudinal direction so that the first link can move relative to the fixed point of the work table, so that the first auxiliary cover and the second The auxiliary cover can be rotated with respect to the drive shaft, thereby facilitating maintenance.

1 is a perspective view showing a cutter according to the prior art.
2A is a front perspective view showing a cutter according to the present invention.
FIG. 2B is a rear perspective view showing a cutter according to the present invention. FIG.
3 is an exploded perspective view of the main part of Fig.
4 is a front view of the cutter according to the present invention in a state in which the protective cover is covered.
5 is a front view showing the cutter according to the present invention in a state in which the protective cover is opened.

Hereinafter, preferred embodiments of the present invention will be described with reference to FIGS. 2 to 5 attached hereto.

2 to 5, a cutter 1000 according to the present invention cuts a hard cut material through a cutter rotating at high speed. The cutter 1000 includes a work table 100 installed on the floor, A motor 300 installed on the rotary frame 200 and a motor 300 installed on one side of the rotary frame 200 so as to be rotatable, And a cutter 400 having a cutter 410 rotated by the cutter 400.

The work table 100 is for placing a workpiece. A rotary frame 200 is rotatably installed at a rotation center point 190 and a vise (not shown) is disposed at an upper portion thereof. And a resilient spring (not shown) is provided at the rotation center point 190 to provide restoring force to return to the original position when the frame 200 is rotated downward good.

A handle 210 is provided at one side of the rotary frame 200 to easily rotate the cutting unit 400 installed in the rotary frame 200 downward.

The motor 300 may transmit rotational power to the cutter 410 through a power transmission unit (not shown) such as a belt or a chain.

The cutter 400 includes a protective cover 420 surrounding a portion of the outer circumferential surface of the cutter 410 and a portion of the cutter 410 of the protective cover 420 exposed when the rotary frame 200 is rotated upward The auxiliary safety cover 600 moves so as to open a portion where the cutter 410 of the protective cover 420 is exposed during the covering and lowering rotation of the auxiliary safety cover 600 and the link connecting structure 600 connecting the auxiliary safety cover 600 and the workbench 100, (700).

The auxiliary safety cover 600 is rotatably installed around the drive shaft 220 on which the cutter 410 is rotatably installed and is disposed to face the drive shaft 220 in the circumferential direction, And includes a cover 610 and a second auxiliary cover 620.

When the rotating frame 200 is in the raised position, the first auxiliary cover 610 and the second auxiliary cover 620 may be in contact with each other, but they may face each other with a slight gap therebetween.

The first auxiliary cover 610 and the second auxiliary cover 620 may have a channel shape such that they cover the outer periphery of the cutter 410.

The link connection structure 700 includes a first link 710 connected to the first auxiliary cover 610 so as to be rotatable relative to the work table 100, And a second link 720 connected to the first link 710 in a relatively rotatable manner.

The first link 710 and the second link 720 are rotated about the drive shaft 220 when the rotary frame 200 is at a raised position and when viewed from the direction of the drive shaft 220, Is disposed on the opposite side of the portion where the second electrode (600) is disposed.

Accordingly, when the rotary frame 200 is lowered and rotated using the handle 210, the protective cover 420 installed on the rotary frame 200 pivots about the rotation center point 190 of the work table 100 The first auxiliary cover 610 and the second auxiliary cover 620 connected to the first link 710 and the second link 720 are rotated and moved in directions away from each other along the circumferential direction of the drive shaft 220 The protective cover 420 is opened, and the cutter 410 is exposed.

The first auxiliary cover 610 and the second auxiliary cover 620 are inserted into the protective cover 420 when the protective cover 420 is opened.

The first auxiliary cover 610 and the second auxiliary cover 620 rotate along the circumferential direction of the driving shaft 220 when the rotating frame 200 is elastically restored and rotated upward about the rotation center point 190, The protective cover 420 is covered while being rotated in a direction approaching each other, so that the cutter 410 is accommodated in the auxiliary safety cover 600. [

The first link 710 preferably has a portion in the vicinity of the drive shaft 220 having a convex shape in the radial direction of the drive shaft 220 to prevent interference with the drive shaft 220.

One end of the second link 720 is connected to one point of a convex portion of the first link 710 and is connected to the first link 710 in a radially convex shape of the drive shaft 220 to prevent interference with the drive shaft 220. [ .

A guide hole 711 may be formed along the longitudinal direction of the first link 710 so that the first link 710 can move relative to the fixing point 180 of the work table 100 .

The first auxiliary cover 610 and the second auxiliary cover 620 are rotated relative to the drive shaft 220 so that the first link 710 Can be moved along the fixed point 180 to expose the cutter 410, thereby facilitating maintenance.

The curvature of the guide hole 711 has a sign opposite to the curvature of the convex portion so that when the first auxiliary cover 610 rises and the first link 710 moves along the fixed point 180 So that the second link 720 can easily lift the second auxiliary cover 620.

A long hole 721 is formed in the second link 720 so that the moving point 712 of the first link 710, which is relatively rotatably connected to the second link 720, .

The first auxiliary cover 610 and the second auxiliary cover 620 perform an opening and closing function by stopping the first link 710 and the second link 720 in a specific posture when the first link 710 and the second link 720 are relatively moved by the long hole 721 Can be prevented.

As shown in FIGS. 4 and 5, it is preferable that the opened portion of the protective cover 420, through which the cutter 410 is exposed, is formed within a range of 180 degrees or less around the drive shaft 220.

When the open portion of the protective cover 420 is more than 180 degrees, the first auxiliary cover 610 and the second auxiliary cover 620 alone can not cover the fully opened portion.

4, the maximum height of the first auxiliary cover 610 is higher than the maximum height of the second auxiliary cover 620 when the rotating frame 200 is in the raised position, It is preferable that the center portion of the portion to be opened when the main body 200 is in the lowered position is brought into contact with the workpiece to be cut.

The fixing point 180 may be positioned in front of the rotation center point 190 of the rotary frame 200 so that the first link 710 and the second link 720 So that the first auxiliary cover 610 and the second auxiliary cover 620 can naturally enter the protective cover 420.

FIGS. 4 and 5 show a configuration in which the protective cover 420 is opened and closed according to the present invention, respectively.

Specifically, FIG. 4 shows a state in which the protective cover 420 is closed by the first auxiliary cover 610 and the second auxiliary cover 620 when the rotating frame 200 is in the raised position.

5, when the rotary frame 200 is lowered and rotated using the knob 210, the protective cover 420 installed on the rotary frame 200 moves the rotary center point 190 of the work table 100 The first auxiliary cover 610 and the second auxiliary cover 620 connected to the first link 710 and the second link 720 are connected to each other along the circumferential direction of the drive shaft 220, The protective cover 420 is opened while being rotated in the moving direction.

The first auxiliary cover 610 and the second auxiliary cover 620 are inserted into the protective cover 420 when the rotating frame 200 is further lowered, As shown in FIG.

While the present invention has been described in connection with what is presently considered to be the most practical and preferred embodiment, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

100 ... workbench
200 ... rotation frame
300 ... motor
400 ... cutting portion
600 ... Secondary safety cover
610 ... first auxiliary cover
620 ... second auxiliary cover
700 ... link connection structure
710 ... first link
720 ... second link

Claims (11)

delete bench;
A rotating frame rotatably mounted on the worktable;
A motor installed in the rotating frame;
A cutter installed in the rotary frame and having a cutter rotated by the motor,
Wherein the cutter covers a part of the outer circumferential surface of the cutter and a portion of the protective cover where the cutter is exposed when the rotary frame is moved upwards and moves to open a portion where the cutter of the protective cover is exposed, A safety cover, and a link connection structure for connecting the auxiliary safety cover and the work table,
The auxiliary safety cover includes a first auxiliary cover and a second auxiliary cover which are rotatably installed around a drive shaft on which the cutter is rotatably installed and are arranged to face each other along a circumferential direction of the drive shaft,
The link connection structure includes a first link that is relatively rotatably connected to the first auxiliary cover and a work table, and a second link that is relatively rotatably connected between the second auxiliary cover and the first link. Wherein the auxiliary safety cover comprises a second safety cover.
3. The method of claim 2,
Wherein the first link and the second link are disposed on the opposite side of the portion where the auxiliary safety cover is disposed with respect to the drive shaft when viewed in the drive shaft direction, A cutter comprising a cover.
The method of claim 3,
Wherein a portion of the first link near the drive shaft has a convex shape in the radial direction of the drive shaft.
5. The method of claim 4,
And one end of the second link is connected to one point of the convex portion of the first link.
5. The method of claim 4,
And a guide hole is formed in the first link along the longitudinal direction so that the first link can move relative to the fixed point of the work table.
The method according to claim 6,
Wherein the curvature of the guide hole has a sign opposite to the curvature of the convex portion.
The method according to claim 6,
Wherein a slot is formed in the second link so that a moving point of the first link, which is relatively rotatable with the second link, can move relative to the second link.
9. The method according to any one of claims 2 to 8,
Wherein an open portion where the cutter of the protective cover is exposed around the drive shaft is formed in a range of 180 degrees or less.
9. The method according to any one of claims 2 to 8,
Wherein a maximum height of the first sub cover is higher than a maximum height of the second sub cover when the rotating frame is in the raised position.
The method according to claim 6,
Wherein the fixing point is located in front of a rotation center of the rotary frame.
KR1020140188198A 2014-12-24 2014-12-24 Cutting apparatus including secondary safety cover KR101522826B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020140188198A KR101522826B1 (en) 2014-12-24 2014-12-24 Cutting apparatus including secondary safety cover

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020140188198A KR101522826B1 (en) 2014-12-24 2014-12-24 Cutting apparatus including secondary safety cover

Publications (1)

Publication Number Publication Date
KR101522826B1 true KR101522826B1 (en) 2015-05-27

Family

ID=53395450

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020140188198A KR101522826B1 (en) 2014-12-24 2014-12-24 Cutting apparatus including secondary safety cover

Country Status (1)

Country Link
KR (1) KR101522826B1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106925833A (en) * 2017-04-28 2017-07-07 长兴达程科技有限公司 A kind of cutting machine that can be rotated
KR101871123B1 (en) * 2017-12-28 2018-06-25 엄인규 Broiler cutting device
KR20200002289U (en) * 2019-04-10 2020-10-20 주식회사한현엔트 Multifunctional cutter
KR20220019404A (en) * 2020-08-10 2022-02-17 김신동 Chicken cutting device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007075981A (en) * 2005-09-16 2007-03-29 Makita Corp Cutting machine

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007075981A (en) * 2005-09-16 2007-03-29 Makita Corp Cutting machine

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106925833A (en) * 2017-04-28 2017-07-07 长兴达程科技有限公司 A kind of cutting machine that can be rotated
KR101871123B1 (en) * 2017-12-28 2018-06-25 엄인규 Broiler cutting device
KR20200002289U (en) * 2019-04-10 2020-10-20 주식회사한현엔트 Multifunctional cutter
KR200493132Y1 (en) * 2019-04-10 2021-02-04 주식회사한현엔트 Multifunctional cutter
KR20220019404A (en) * 2020-08-10 2022-02-17 김신동 Chicken cutting device
KR102433064B1 (en) 2020-08-10 2022-08-18 김신동 Chicken cutting device

Similar Documents

Publication Publication Date Title
KR101522826B1 (en) Cutting apparatus including secondary safety cover
KR100635125B1 (en) Cutter
US5893311A (en) Protective covers of power saw
TW200946309A (en) Saw blade protectors
JP2007008063A5 (en)
HK1027525A1 (en) Hand-held circular saw
CN201493555U (en) Hand-held circular saw guard shield mechanism
KR20160032605A (en) protective cover for a electric miter saw
KR20150017226A (en) Roll tape cutting device for portable
US10727637B2 (en) Cutting fixture exhibiting ram actuated and multiplying lever force for removing such as an H-tap crimp from a utility power line
JP2018527189A (en) Multi-tool for machining workpieces, especially thin plates
KR102510558B1 (en) Chicken cutting device
CN104742095A (en) Electric circular saw
CN209648889U (en) From the bench saw of protection
JP2017213647A (en) Cutting machine
JP5592574B1 (en) Disc blade grinding device
KR102115085B1 (en) Portable high speed cutting machine
JP2016087732A (en) Desktop cutter
CN211248530U (en) Cutting machine
CN204524410U (en) A kind of diagonal cutting saw movable shield quick opening
CN217070799U (en) Punching device of safety protection box
JP6228022B2 (en) Electric tool base seat, electric tool equipped with base seat
KR101692867B1 (en) Fixing structure of grinder wheelguard
CN216370733U (en) Multi-angle shield for protecting metal laser cutting machine
CN215511747U (en) Marble machine

Legal Events

Date Code Title Description
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
FPAY Annual fee payment

Payment date: 20180531

Year of fee payment: 4