KR101624690B1 - Portable corner cutter - Google Patents

Portable corner cutter Download PDF

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Publication number
KR101624690B1
KR101624690B1 KR1020140004614A KR20140004614A KR101624690B1 KR 101624690 B1 KR101624690 B1 KR 101624690B1 KR 1020140004614 A KR1020140004614 A KR 1020140004614A KR 20140004614 A KR20140004614 A KR 20140004614A KR 101624690 B1 KR101624690 B1 KR 101624690B1
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KR
South Korea
Prior art keywords
adapter
cutter blade
rotary shaft
bearing
hole
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KR1020140004614A
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Korean (ko)
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KR20150084514A (en
Inventor
장두한
Original Assignee
주식회사 세한코리아
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Priority to KR1020140004614A priority Critical patent/KR101624690B1/en
Publication of KR20150084514A publication Critical patent/KR20150084514A/en
Application granted granted Critical
Publication of KR101624690B1 publication Critical patent/KR101624690B1/en

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Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a portable chamfer for adjusting the exposure amount of a cutter blade exposed to the outside of a support plate according to the size of a cutting blade for use, more particularly, an adapter having an upper end attached to a rotary shaft and a cutter blade provided at a lower end It is possible to precisely adjust the exposure amount of the cutter blade since the cutter blade does not come out from the extended screw provided at the tip of the main body of the main body of the machine and the adapter is not loosened when replacing the cutter blade, .
The present invention relates to a portable dishwasher (100) having a cutter blade (140) rotated by a motor (103) installed to protrude downward from a lower side of a support plate (111); The rotary shaft 102 of the motor 103 is threadedly installed at the lower end portion of the machine body 101 to be exposed downward. The threaded portion is formed on the upper inner peripheral edge and the outer peripheral edge, An extension screw 120 is installed on the bearing mounting part 121 formed to be enlarged and installed so that the lower bearing 122 does not fall downward by a snap ring 123; The cutter blade 140 is screwed with the lock nut 104 on the outer periphery of the extended screw pipe 120 to expose the cutter blade 140 at a central portion of the lower support plate 111 in surface contact with the workpiece An outer tube 110 in which a tool insertion hole 113 is formed in an outer periphery of the outer tube 110; And a bolt hole 133 for fastening the cutter fixing bolt 143 to the female screw portion 138 to which the screw portion of the rotary shaft 102 is fastened is formed at the central portion of the upper and lower portions, respectively, by being screwed to the screw portion of the rotary shaft 102 And a protrusion 135 protruding outwardly from the upper bearing 130 is formed on the outer circumferential upper side so as to protrude outwardly from the upper end of the lower bearing 122. The protrusion 135 of the adapter main body 131 corresponding to the tool insertion hole 113 of the outer tube 110 An adapter 130 in which a tool insertion hole 136 is formed at an upper portion of the adapter body 131 and a key 134 is exposed outside the insertion portion 132 at a lower side of the adapter body 131; An upper bearing 106 mounted on the bottom surface of the motor 103 so that an upper surface thereof is fitted to the rotary shaft 102; A supporting bushing 150 fitted to the outside of the rotary shaft 102 between the bottom surface of the upper bearing 106 and the upper surface of the adapter 130 and having a flat surface portion 151 for spanner fitting on the outer surface; A key 134 of the adapter 130 is attached to the inner circumferential surface of the through hole 141 in which the insertion portion 132 of the adapter 130 is fitted, And a cutter blade 140 on which a keyway 142 to be inserted is formed.

Description

{Portable corner cutter}

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a portable chamfer for adjusting the exposure amount of a cutter blade exposed to the outside of a support plate according to the size of a cutting blade for use, more particularly, an adapter having an upper end attached to a rotary shaft and a cutter blade provided at a lower end It is possible to precisely adjust the exposure amount of the cutter blade since the cutter blade does not come out from the extended screw provided at the tip of the main body of the main body of the machine and the adapter is not loosened when replacing the cutter blade, .

The conventional portable facial washing machine 100 is registered as a utility model registration No. 20-191397 (design name: portable facial washing machine) and is known in the registered utility model publication.

1, a chuck 20 installed to be interlocked with a rotary shaft 11 of a drive motor 10, a cutter blade 30 detachably installed on the chuck 20, A guide plate 40 having a through hole 43 through which the cutter blade 30 protrudes and retracts and guiding a machining direction while being slid along the workpiece and a cutter blade 30 connected to the guide plate 40, And an adjusting slider (50) for adjusting the relative length of the protruding and retracting through the through hole (43) of the guide plate.

The chuck 20 is mainly a collet chuck capable of detachably mounting a cutter blade 30 with a bag 32 thereon and connected to the rotary shaft 11 of the drive motor 10 by a coupler 13, And this chuck 20 is fitted in a bearing 17 which is installed so as to be inscribed in the fixing bushing 15 of the front end portion of the electric motor 10.

A threaded portion 16 is formed on an outer circumferential surface of the fixing bushing 15 so that the adjusting slider 50 is engaged with the threaded portion 16. The adjusting slider 50 has a guide plate 40 at its distal end, And a screw groove is formed on the inner circumferential surface of the flange so as to be engaged with the threaded portion 16 of the fixing bushing 15 so that the cutter blade 30 comes out of the through hole 43 of the guide plate So as to adjust the length thereof.

A fixing ring 60 connected to the rear end of the adjusting slider 50 to prevent the adjusting slider 50 from being released during operation is screwed to the threaded portion 16 of the fixing bushing 15 .

Such a conventional design does not provide a separate means for preventing the chuck 20 provided with the cutter blade 30 from escaping into the open lower space of the bushing 15 and thus the cutter blade 30 is rotated at a high speed A vibration occurs in the process of cutting the workpiece, and the chuck 20 flows upward and downward.

As the chuck 20 flows upward and downward, the cutter blade 30 provided on the lower side of the chuck 20 also flows upward and downward, which makes it difficult to precisely cut the workpiece. 100 is worn for a long period of time, abrasion occurs between peripheral parts supporting the chuck 20 and the cutter blade 30 and peripheral connection parts between the chuck and the cutter blade, There arises a problem that it is pulled out to the lower side.

Since the bag 32 of the cutter blade 30 is simply coupled to the collet chuck 20 so that the bag 32 of the cutter blade 30 is worn by the bite of the collet chuck 20 or foreign matter Each time the cutter blade 30 is loosened and the cutter blade 30 is clamped to the chuck 20 because the bag 32 of the cutter blade 30 is not coupled to the collet chuck 20 at a constant depth, The installation height of the blade 30 is small, but there is a difference, which makes it difficult to precisely process the blade 30.

When the cutter blade 30 is to be replaced in the prior art, the pawl portion 33 holding the bag 32 of the cutter blade 30 must be screwed from the chuck 20, There is a fatal problem that the pawl catching portion 33 and the chuck 20 rotate together to break the cutter blade 30 when the pawl catching portion 33 is rotated to disassemble the pawl portion 33. [

Registered Utility Model No. 20-191397 (name of design: portable cotton machine)

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above problems, and an object of the present invention is to provide an apparatus and a method for correcting an amount of exposure of a cutter blade by accurately positioning the cutter blade, So that the adapter can be prevented from idling when the cutter blade is replaced, thereby facilitating the replacement work of the cutter blade.

In order to achieve the above object, according to the present invention, a cutter blade rotated by a motor is installed to protrude down from a lower side of a support plate, The bearing mounting portion is provided with a threaded portion formed on an upper inner circumference and an outer circumference and an inner diameter enlarged on an inner circumference on a lower side. An extension screw pipe installed to the lower bearing so as not to fall downward; A through hole through which a cutter blade is exposed is formed at a central portion of a lower support plate which is in surface contact with a workpiece, and an outer tube and; A bolt hole through which a threaded portion of a rotating shaft is fastened to a center portion of the upper and lower portions and a bolt hole into which a cutter fixing bolt is fastened is formed respectively, An adapter having a tool insertion hole formed at a predetermined position of the adapter body corresponding to the tool insertion hole of the outer tube and having a key exposed to the outside of the insertion portion on the lower side of the adapter body; An upper bearing mounted on a bottom surface of the motor and having an upper surface fitted to the rotary shaft; A support bushing fitted to the outer surface of the rotary shaft between the upper bearing bottom surface and the upper surface of the adapter and having a flat surface for fitting a spanner on its outer surface; And a cutter blade which is detachably installed in the insertion portion on the lower side of the adapter and in which a key groove into which the key of the adapter is inserted is formed on the inner peripheral surface of the through hole into which the insertion portion of the adapter is inserted.

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As described above, in the portable device of the present invention, the adapter provided at the lower end of the rotary shaft does not protrude outwardly from the extension screw provided at the tip of the beater main body, so that the exposure amount of the cutter blade can be accurately adjusted, There is an effect that a precise chamfering operation is performed, and the adapter does not idle when the cutter blade is replaced, so that the replacement work of the cutter blade can be easily performed.

1 is a cross-sectional view showing a conventional device.
2 is a sectional view showing the present invention.
3 is an enlarged cross-sectional view of a main part of the present invention.
4 is an exploded perspective view showing a coupling relationship between an adapter and a cutter blade provided in the present invention;

Hereinafter, a portable flat panel according to the present invention will be described with reference to FIGS. 2 to 4 attached hereto.

The portable dishwasher (100) according to the present invention is opened downward and has a threaded portion formed on the outer periphery of the opened lower end thereof to be screwed into the extended threaded tube (120) A motor 103 is installed so that the motor 102 protrudes downward.

The lock nut 104 and the outer tube 110 are threadedly coupled to the outside of the extended screw cap 120. The adapter 130 is installed downward on the threaded portion of the rotating shaft 102, A cutter blade 140 is installed at the lower end of the outer tube 110. The cutter blade 140 is exposed downward through the through hole 112 of the support plate 111 formed at the lower portion of the outer tube 110.

An upper bearing 106 and a support bushing 150 are vertically stacked between the bottom surface of the motor 103 and the upper surface of the adapter 130. A lower bearing 122 Is provided so as not to fall downward by the snap ring 123.

The upper bearing 106 is fitted on the outer surface of the rotary shaft 102 while the upper surface of the upper bearing 106 is in contact with the bottom surface of the motor 103. The support bushing 150 is engaged with the upper bearing 106 and the adapter 130 And a flat surface portion 151 for a spanner fitting is formed on the outer surface of the support bushing 150. [

The extended screw pipe 120 is screwed to a lower end portion of a planer take-up body 101 installed to expose the lower end of the rotary shaft 102 of the motor 103. A threaded portion is formed on the upper inner circumference and the outer circumference And the lower bearing 122 is installed so as not to fall downward by the snap ring 123 on the bearing mounting portion 121 formed with the inner diameter enlarged on the inner circumference of the lower side.

The outer tube 110 is screwed to the outer circumferential threaded portion of the extension screw 120 together with the lock nut 104 so that the lock nut 104 is screwed to the outer circumferential threaded portion of the extension screw pipe 120, And the outer tube 110 is screwed on the outer peripheral thread portion of the extension screw pipe 120 on the lower side of the lock nut 104.

A through hole 112 is formed in a central portion of the support plate 111 to expose a cutter blade 140. The through hole 112 is formed in the center of the support plate 111, And a tool insertion hole 113 is formed inwardly on the outer periphery.

The adapter 130 is coupled to the threaded portion of the rotary shaft 102. The adapter 130 is fixed to the center of the upper and lower portions by a female screw portion 138 to which the threaded portion of the rotary shaft 102 is fastened, And a protruding frame 135 is formed to protrude outward on the outer peripheral upper side of the lower bearing 122.

A tool insertion hole 136 is formed at a predetermined position of the adapter main body 131 corresponding to the tool insertion hole 113 of the outer tube 110 and is formed on the outer side of the insertion portion 132 on the lower side of the adapter main body 131 And a flat portion 137 for a spanner fitting is formed on the outer surface of the adapter main body 131. [

The cutter blade 140 is detachably attached to the insertion portion 132 at the lower side of the adapter 130. The cutter blade 140 is formed at a lower end portion of the adapter body 131 to have a diameter smaller than that of the adapter body 131, It is a matter of course that a key groove 142 into which the key 134 of the adapter 130 is inserted is formed on the inner circumferential surface of the through hole 141 in which the insertion portion 132 is inserted and a cutting edge portion is formed on the front surface.

The threaded portion formed at the lower end portion of the rotary shaft 102 and the cutter fixing bolt 143 provided with the cutter blade 140 are formed by a left-hand thread so that the adapter 130 including the rotary shaft 102 and the cutter blade 140, The adapter 130 and the cutter blade 140 should not be loosened when rotating in the forward direction (clockwise direction).

The operational relationship of the present invention constructed as described above will be described with reference to FIGS. 2 to 4. FIG.

The motor 103 is installed inside the side of the side of the take-up machine 101 in which the lower side of the machine 100 is opened. The motor 103 is installed downward so as to be exposed to the lower opening portion of the motor 103. [

After the motor 103 is installed downward on the body 101 of the machine, the upper bearing 106 is fitted to the outside of the rotary shaft 102 so that the upper surface of the upper bearing 106 is inserted into contact with the lower surface of the motor 103 The supporting bushing 150 is inserted into the outer side of the rotary shaft 102 below the upper bearing 106 and the upper female threaded portion 138 of the adapter 130 is fastened to the threaded portion of the lower end of the rotary shaft 102.

At this time, when the threaded portion of the lower end of the rotary shaft 102 is fastened to the female threaded portion 138 of the adapter 130, the adapter 130 is initially rotated by hand to fasten the threaded portion and the female threaded portion 138, When the bottom surface of the upper bearing 106 and the upper surface of the adapter 130 are brought into contact with each other by fastening the threaded portion of the adapter 130 and the threaded portion of the adapter 130 to the threaded portion of the rotary shaft 102, .

A planar portion 151 formed on the outer circumferential surface of the support bushing 150 and a flat portion 137 formed on the outer circumferential surface of the adapter 130 are inserted into a tool engagement portion such as a spanner, 138 and the threaded portion of the rotating shaft 102 are strongly tightened. When the female boss portion 138 of the adapter 130 and the screw portion of the rotary shaft 102 are tightly tightened, the support bushing 150 is inserted between the bottom surface of the upper bearing 106 and the upper surface of the adapter 130, (130) is tightly fastened to the threaded portion of the rotary shaft (102).

The lower bearing 122 is inserted into the bearing mounting portion 121 whose inner diameter is enlarged at the lower side of the extended screw cap 120 and then the snap ring 123 is inserted into the inner diameter portion of the lower bearing 122 So that the upper bearing 106 is prevented from falling downward and the threaded portion formed on the inner upper side of the thus assembled extended screw pipe 120 is fastened to the threaded portion formed on the outer side of the lower end portion of the threaded body 101.

When the extended screw pipe 120 is fastened to the lower end of the main body 101 of the beaker, the adapter body 131 of the previously installed adapter 130 is inserted into the lower bearing 122, The upper surface of the lower bearing 122 is hooked to the lower end of the protruding frame 135 which is formed to protrude outward from the outer circumferential edge of the upper side of the base 131.

The outer circumferential threaded portion of the outer tube 110 is fastened by fastening the lock nut 104 to the outer circumferential threaded portion of the extended screw cap 120 so that the upper end of the outer tube 110 Tightening up to a position close to the lower end of the lock nut (104).

3 and 4, a cutter blade 140 is installed at the lower end of the adapter 130. At this time, an insertion portion 132 having an outer diameter smaller than that of the adapter body 131 is formed at the lower end of the adapter 130, The cutter blade 140 is inserted into the key groove 142 formed in the inner circumferential surface of the through hole 141 so as to insert the key 134 installed on the outer circumferential surface of the one side of the insert portion 132, Is inserted into the insertion portion 132 of the adapter 130.

The cutter fixing bolt 143 in which the guide bearing 144 is inserted is inserted into the through hole 141 of the cutter blade 140 while the threaded portion of the cutter fixing bolt 143 is screwed into the bolt hole When the threaded portion of the cutter fixing bolt 143 is fastened to the bolt hole 133 at first by screwing the cutter fixing bolt 143 with the guide bearing 144 fitted to the outside by hand, The cutter blade 140 can not be strongly tightened to the lower end of the adapter 130 even if the rotary shaft 102 including the rotary shaft 130 rotates.

The tool insertion hole 113 of the outer tube 110 and the tool insertion hole 136 of the adapter 130 are formed in such a manner that the inner and outer portions of the outer tube 110 are coupled with each other, A tool 105 such as a screwdriver or a pin is inserted into the tool insertion holes 113 and 136 and the cutter fixing bolt 143 is strongly tightened with a wrench while the tool 105 is being held and the cutter blade 140 is strongly tightened .

After the assembly of the present invention is completed, the assembly of the present invention is completed. The assembly of the present invention is completed by the bottom surface of the support plate 111 formed on the lower side of the outer tube 110 according to the thickness or height of the cutter blade 140 It is necessary to further perform an operation of adjusting the exposure amount at which the cutter blade 140 is exposed.

The adjustment of the exposure amount with respect to the cutter blade 140 can be performed only when the cutting edge portion of the cutter blade 140 is exposed to the lower side of the support plate 111 in surface contact with the upper surface of the workpiece, The amount of exposure of the cutter blade 140 is adjusted.

In order to adjust the amount of exposure to the cutter blade 140 as described above, the lock nut 104 fastened on the outer periphery of the extended screw cap 120 is loosened, so that the lower part of the lock nut 104 and the lower outer tube When the outer tube 110 is screwed in a state where the upper part of the outer tube 110 is spaced apart from the outer tube 110, the outer tube 110 is lifted up and down from the outside of the extension tube 120 The amount of exposure of the cutter blade 140 can be adjusted.

After the adjustment of the exposure amount of the cutter blade 140 is completed, when the lower surface of the lock nut 104 loosely loosened on the upper side of the outer tube 110 is fastened to the upper end of the outer tube 110, The fixing member 110 is fixed in place so as not to move upwardly or downwardly in place so that adjustment of the exposure amount of the cutter blade 140 is completely completed.

After the adjustment of the exposure amount to the cutter blade 140 is completed, chamfering work on the workpiece is performed. The chamfering work on the workpiece is performed by a conventional portable handkerchief, The cutter blade 140 is rotated in a state in which the bottom surface of the cutter blade 140 is brought into contact with the upper surface of the workpiece and the cutting edge portion of the cutter blade 140 is in contact with the edge portion.

Since the support bushing 150 is installed in a state where the gap between the upper bearing 106 that is free to rotate and the adapter 130 that rotates by the rotation shaft 102 is maintained, The through hole 112 formed in the central portion of the support plate 111 can be easily lifted or lowered when the amount of exposure of the cutter blade 140 is adjusted so that the cutter blade 140 can ascend and descend Space.

100: portable dishwasher 101: razor main body 102: rotating shaft
103: motor 104: lock nut 105: tool
110: outer tube 111: support plate 112: through hole
113: Tool insertion hole 120: Extension screw 121: Bearing installation part
122: lower bearing 123: snap ring 130: adapter
131: Adapter body 132: Insertion part 133: Bolt hole
134: key 135: protrusion 136: tool insertion hole
137: plane portion 140: cutter blade 141: through hole
142: key groove 143: cutter fixing bolt 144: guide bearing
150: support bushing 151:

Claims (2)

And a cutter blade rotated by a motor is installed to project downward from a lower side of the support plate,
The bearing mounting portion is provided with a threaded portion formed on an upper inner circumference and an outer circumference and an inner diameter enlarged on an inner circumference on a lower side. An extension screw pipe installed to the lower bearing so as not to fall downward;
A through hole through which a cutter blade is exposed is formed at a central portion of a lower support plate which is in surface contact with a workpiece, and an outer tube and;
A bolt hole through which a threaded portion of a rotating shaft is fastened to a center portion of the upper and lower portions and a bolt hole into which a cutter fixing bolt is fastened is formed respectively, An adapter having a tool insertion hole formed at a predetermined position of the adapter body corresponding to the tool insertion hole of the outer tube and having a key exposed to the outside of the insertion portion on the lower side of the adapter body;
An upper bearing mounted on a bottom surface of the motor and having an upper surface fitted to the rotary shaft;
A support bushing fitted to the outer surface of the rotary shaft between the upper bearing bottom surface and the upper surface of the adapter and having a flat surface for fitting a spanner on an outer surface thereof;
And a cutter blade which is detachably installed in the insertion portion on the lower side of the adapter and in which a key groove into which the key of the adapter is inserted is formed on the inner peripheral surface of the through hole in which the insertion portion of the adapter is inserted. The portable cotton machine according to claim 1, wherein a planar portion for fitting a spanner is formed on an outer surface of the adapter.
KR1020140004614A 2014-01-14 2014-01-14 Portable corner cutter KR101624690B1 (en)

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Application Number Priority Date Filing Date Title
KR1020140004614A KR101624690B1 (en) 2014-01-14 2014-01-14 Portable corner cutter

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Application Number Priority Date Filing Date Title
KR1020140004614A KR101624690B1 (en) 2014-01-14 2014-01-14 Portable corner cutter

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KR20150084514A KR20150084514A (en) 2015-07-22
KR101624690B1 true KR101624690B1 (en) 2016-05-26

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102194478B1 (en) 2020-06-29 2020-12-23 김수영 The rotation cutter material for the hand-held chamfer

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112223081A (en) * 2020-09-02 2021-01-15 国网浙江永嘉县供电有限公司 Portable cable hole polisher

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200191397Y1 (en) 2000-02-11 2000-08-16 이기봉 Potable corner cutter
KR200191389Y1 (en) 2000-02-07 2000-08-16 이성진 Chamfering machine
JP2011500342A (en) 2007-10-22 2011-01-06 テスン ゴールデン テクノロジー Multipurpose chamfering machine {MultipurposeBeveler}

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200191389Y1 (en) 2000-02-07 2000-08-16 이성진 Chamfering machine
KR200191397Y1 (en) 2000-02-11 2000-08-16 이기봉 Potable corner cutter
JP2011500342A (en) 2007-10-22 2011-01-06 テスン ゴールデン テクノロジー Multipurpose chamfering machine {MultipurposeBeveler}

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102194478B1 (en) 2020-06-29 2020-12-23 김수영 The rotation cutter material for the hand-held chamfer

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