WO2022250374A1 - 가위의 간격 조정 장치 - Google Patents
가위의 간격 조정 장치 Download PDFInfo
- Publication number
- WO2022250374A1 WO2022250374A1 PCT/KR2022/007147 KR2022007147W WO2022250374A1 WO 2022250374 A1 WO2022250374 A1 WO 2022250374A1 KR 2022007147 W KR2022007147 W KR 2022007147W WO 2022250374 A1 WO2022250374 A1 WO 2022250374A1
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- WO
- WIPO (PCT)
- Prior art keywords
- blade
- opening
- scissors
- gawit
- fixing part
- Prior art date
Links
- 238000005096 rolling process Methods 0.000 claims description 18
- 238000003780 insertion Methods 0.000 claims description 12
- 230000037431 insertion Effects 0.000 claims description 12
- 230000005021 gait Effects 0.000 claims description 8
- 230000037237 body shape Effects 0.000 claims 1
- 238000003825 pressing Methods 0.000 abstract description 8
- 230000008878 coupling Effects 0.000 abstract description 3
- 238000010168 coupling process Methods 0.000 abstract description 3
- 238000005859 coupling reaction Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
- B26B13/00—Hand shears; Scissors
- B26B13/04—Hand shears; Scissors with detachable blades
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
- B26B13/00—Hand shears; Scissors
- B26B13/22—Hand shears; Scissors combined with auxiliary implements, e.g. with cigar cutter, with manicure instrument
- B26B13/24—Hand shears; Scissors combined with auxiliary implements, e.g. with cigar cutter, with manicure instrument to aid hair cutting
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
- B26B13/00—Hand shears; Scissors
- B26B13/28—Joints
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- 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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/02—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows
- F16C19/04—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly
- F16C19/06—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly with a single row or balls
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- 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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/02—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows
- F16C19/10—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for axial load mainly
Definitions
- the present invention relates to scissors, in particular, a fixing part for coupling the first gawit blade and the second gawit blade through the opening of the first gawit blade and the second gawit blade, a pair of ball bearings into which the fixing part is inserted, and the A thrust bearing provided between ball bearings and a pressure bar inserted into one side of the first ray and pressurizing the thrust bearing, the gap between the first ray and the second ray is reduced by the fixing part and the pressure bar. Even when the distance between the first and second razor blades is changed by adjusting, the distance can be easily adjusted to minimize the resistance between the blades and maintain the cutting performance of the scissors.
- scissors include a first razor blade (B1) and a second razor blade (B2) for cutting hair, as shown in FIG.
- the first gawit blade (B1) and the second gawit blade (B2) are mutually rotatably installed by a fixture (B3) in a crossed state.
- a first operating ring R1 is formed on the first false blade B1, and a second operating ring R2 is provided on the second false blade B2. The user cuts the hair by inserting his/her fingers into the first and second actuating rings R1 and R2.
- the first razor blade (B1) moves toward the second razor blade (B2) and cuts the hair.
- the first gawit blade (B1) and the second gawit blade (B2) and the interval may vary according to use. For example, if the distance between the first and second blades B1 and B2 increases, a gap between the blades is formed, reducing the hair cutting performance and reducing the distance between the first and second blades B1 and B2. In the case of this, there is a problem in that the resistance between the blades increases, making it difficult to open and close the scissors, increasing inconvenience in use.
- the present invention is to solve the above-mentioned problems, a fixing portion for coupling the first gawit blade and the second gawit blade through the opening of the first gawit blade and the second gawit blade, and a pair of ball bearings into which the fixing portion is inserted therein And, by a configuration comprising a thrust bearing provided between the ball bearings, and a pressure bar inserted into one side of the first gantry blade to press the thrust bearing, the first gantry blade and the first gantry blade by the fixing part and the pressing bar 2
- the distance between the gait blades can be adjusted, so that even when the distance between the gait blades fluctuates, the distance can be easily adjusted and the tension between the blades can be adjusted thereby maintaining the cutting performance of the hair, while improving the convenience of use. It is an object of the present invention to provide a device for adjusting the distance between scissors that can be used.
- the present invention is a scissors for cutting hair including a first gait blade 500 and a second gait blade 600, the opening of the first gait blade 500 and the second gait blade 600
- the fixing part 300 that penetrates the part (O) and couples the first razor blade 500 and the second razor blade 600, and is in contact with the inner surface of the opening part O and the fixing part 300 is inserted into the inside It is provided with a pair of ball bearings 100, and a gap adjusting means is provided between the pair of ball bearings 100 to adjust the distance between the first pair of scissors 500 and the second pair of scissors 600.
- a control device is provided.
- the gap adjusting means is a thrust bearing 200 provided between the ball bearings 100 and a gaer bar 400 inserted into one side of the first razor blade 500 and pressurizing the thrust bearing 200 ), to adjust the distance between the first gawit blade 500 and the second gawit blade 600 by moving forward and backward of the pressure bar 400.
- the first gawit blade 500 is a plate-shaped first gawit blade body 510 in which the first opening O1 is formed, and the side of the second gawit blade 600 direction of the first opening O1. It includes a first locking jaw 520 protruding inward from, and the second scissors blade 600 has a plate-shaped second scissors body 610 in which a second opening O2 is formed, and the second opening portion (O2) includes a second locking jaw 620 protruding inward from the side in the direction of the first razor blade 500, and the first opening O1 and the second opening O2 communicate with each other to form the opening (O) is formed, and a part of the outer ring of the ball bearing 100 protrudes and is caught by the first locking jaw 520 and the second locking jaw 620.
- the ball bearing 100 includes a first ball bearing 110 provided in the first opening O1 and a second ball bearing 120 provided in the second opening O2, , Some of the outer race 111 of the first ball bearing 110 protrudes through the first protrusion 111-1 and is caught on the first locking jaw 520, and the outer race of the second ball bearing 120 A part of the 121 has the second protrusion 121-1 protruding and being caught by the second locking jaw 620, and the thrust bearing 200 is connected to the first locking jaw 520 and the second locking jaw ( 620) and a contact plate 230 disposed inside the first holding jaw 520 and in contact with the rolling element 210, and is seated on the contact plate 230. Grooves 231 are formed.
- a through hole 521 is formed in the first locking jaw 520, into which the pressure bar 400 is inserted, and the pressure bar 400 is screwed into the through hole 521 and the pressure bar body ( 410) and an insertion groove 420 which is recessed on one side of the pressure bar body 410 and into which a tool is inserted, and which is inserted into the first opening O1 and the second opening O2.
- the top part 300 is inserted into each of the openings O1 and O2 and is inserted into the first fixing part 310 in contact with the inner ring 112 of the ball bearing 100 and the inside of the first fixing part 310 and interacts with each other.
- It includes a second fixing part 320 screwed together, and the first fixing part 310 is inserted into the first opening part O1 and the second opening part O2 and the second fixing part 320 ) is coupled to the inside of the first cylindrical portion 311, and the first wing portion 312 formed at one side end of the first cylindrical portion 311 and having a plate shape and covering the first bearing 110
- the second fixing part 320 is formed at the other end of the second cylindrical part 321 and the second cylindrical part 321 screwed into the first cylindrical part 311 and has a plate shape, and the A second wing portion 322 covering the second bearing 120 is included.
- a plurality of through holes 521 are provided around the open portion O, and a plurality of pressing bars 400 are respectively inserted into the plurality of through holes 521 .
- the thrust bearing 200 is formed of a rolling element 210, an upper contact plate 230, and a lower contact plate.
- the lower contact plate is the inner surface of the second holding jaw 620 protruding inwardly formed integrally with the second scissors blade.
- the distance between the two scissors fluctuates, the distance can be easily adjusted and the tension between the blades can be adjusted thereby maintaining the hair cutting performance, while improving the convenience of use.
- FIG. 1 is a schematic diagram of a common scissors
- FIG. 2 is a perspective view of scissors according to an embodiment of the present invention.
- FIG. 3 is a schematic view of disassembling scissors according to an embodiment of the present invention.
- 4 and 5 are schematic views showing only the side based on the center line of scissors according to an embodiment of the present invention.
- 6 and 7 are schematic diagrams showing adjusting the spacing of scissors according to an embodiment of the present invention.
- Scissors 10 includes a first gawit blade 500 and a second gawit blade 600 as shown in FIGS. 2 to 5 .
- a pair of ball bearings 100 are provided with a pair of ball bearings 100 in contact with the inner surface of the unit O and the fixing part 300 is inserted therein, and a gap adjusting means is provided between the pair of ball bearings 100, so that the first blade Adjust the gap between (500) and the second gawit blade (600).
- the gap adjusting means is a pair of ball bearings 100 in contact with the inner surface of the opening O and into which the fixing part 300 is inserted, and a thrust bearing 200 provided between the ball bearings 100. ) and a pressure bar 400 inserted into one side of the first scissors blade 500 to press the thrust bearing 200.
- the first gawit blade 500 and the second gawit blade 600 and the opening part O itself can apply the prior art, so duplicate descriptions thereof will be omitted.
- a pair of ball bearings 100 and thrust bearings 200 are included in the opening part O.
- the ball bearings 100 are provided as a pair and, as shown in FIG. 3, are disposed on both sides of the open portion O and are spaced apart from each other at regular intervals.
- a thrust bearing 200 is disposed between the pair of ball bearings 100 .
- a pressure bar 400 is inserted into one side of the first scissors blade 500 to pressurize the thrust bearing 200. That is, as will be described later, after releasing the fixing part 300, the distance between the first razor blade 500 and the second razor blade 600 is adjusted by moving the pressing bar 400 forward and backward. According to the present invention, when a change occurs in the distance between the first razor blade 500 and the second razor blade 600 according to use, the distance can be easily adjusted to maintain the hair cutting performance.
- the first razor blade 500 protrudes inward from the side of the first razor blade body 510 having a plate shape in which the first opening portion O1 is formed and the second razor blade 600 side of the first opening portion O1. It includes a first holding jaw 520 to be.
- the second gawit blade 600 protrudes inwardly from the side of the second gawit blade body 610 of the plate shape in which the second opening part O2 is formed, and the first gawit blade 500 direction of the second opening part O2 It includes a second holding jaw 620 to be.
- the first opening part O1 and the second opening part O2 communicate with each other to form the opening part O. At this time, a part of the outer ring of the ball bearing 100 protrudes and is caught by the first and second locking jaws 520 and 620 .
- the ball bearing 100 includes a first ball bearing 110 provided in the first opening part O1 and a second ball bearing 120 provided in the second opening part O2.
- a part of the outer ring 111 of the first ball bearing 110 has a first protruding portion 111-1 protruding and being caught by the first locking jaw 520.
- a part of the outer ring 121 of the second ball bearing 120 protrudes from the second protrusion 121-1 and is caught by the second locking jaw 620.
- the first protrusion 111-1 protrudes from the outer end in the thickness direction (left side in the drawing) of the outer ring 111 of the first ball bearing 110, and the second protrusion 121-1 is also a second ball bearing.
- the outer ring 121 of 120 protrudes from the outer end in the thickness direction (right side in the drawing).
- the first protrusion 111-1 and the second protrusion 121-1 are caught by the first protrusion 520 and the second protrusion 620, respectively.
- the thrust bearing 200 is disposed between the first bearing 110 and the second bearing 120 and is specifically disposed between the first locking shoulder 520 and the second locking shoulder 620 .
- the thrust bearing 200 includes a rolling element 210 and an upper contact plate 230 disposed inside the first locking jaw 520 and in contact with the rolling element 210 .
- the plurality of rolling elements 210 may be provided, and the plurality of rolling elements 210 may be fixed by a well-known retainer 220.
- the upper contact plate 230 is disposed on only one side. This is because the thickness becomes thick when contact plates are disposed on both sides of a rolling element like a conventional thrust bearing. To prevent this, the contact plate is disposed only on one side of the rolling element.
- Seating grooves 231 are formed in the upper contact plate 230 of the present invention, and the rolling elements 210 are seated therein.
- a through hole 521 is formed in the first locking jaw 520 of the first ear blade 500, and the pressure bar 400 is inserted therein.
- the pressure bar 400 includes a pressure bar body 410 screwed to the through hole 521 and an insertion groove 420 recessed on one side of the pressure bar body 410 and into which a tool is inserted. . That is, the first bearing 110 and the second bearing 120 of the present invention are disposed in the first opening O1 and the second opening O2, respectively.
- the first protrusion 111-1 of the first bearing 110 is engaged with the first protrusion 520, and the second protrusion 121-1 of the second bearing 120 is engaged with the second protrusion 620.
- the through hole 521 is formed only in the first holding jaw 520 . Therefore, the bearings 500 are disposed on both sides of the opening O, but the through holes 521 are formed only in the first holding jaw 520, and the pressure bar 400 also penetrates the first holding jaw 520. It is inserted into the ball 521 only.
- the pressure bar body 410 of the pressure bar 400 may be screwed into the through hole 521 . That is, the pressure bar body 410 may move forward and backward by the rotation of the pressure bar body 410 .
- a tool for example, a wrench
- the pressure bar body 410 is removed using the tool. can be easily rotated.
- the first gawit blade 500 and the second gawit blade 600 are mutually fixed by the fixing part 300.
- the fixing part 300 is inserted into each of the openings O1 and O2 and is inserted into the first fixing part 310 in contact with the inner ring 112 of the ball bearing 100 and the inside of the first fixing part 310. and a second fixing part 320 screwed together. That is, the second fixing part 320 is screwed into the first fixing part 310, and the inner ring 112 of the ball bearing 100 is in contact with the outer surface of the first fixing part 310. Therefore, the first gawit blade 500 and the second gawit blade 600 are each rotatable around the fixing part 300 by the ball bearing 100. By this configuration, the first gawit blade 500 and the second gawit blade 600 are close to or spaced apart from each other to cut the hair.
- the first fixing part 310 is inserted into the first opening part O1 and the second opening part O2 and the first cylindrical part 311 to which the second fixing part 320 is coupled therein and , It is formed at one side end of the first cylindrical portion 311, has a plate shape, and includes a first wing portion 312 covering the first bearing 110.
- the second fixing part 320 is formed at the other side end of the second cylindrical part 321 screwed into the first cylindrical part 311 and the second cylindrical part 321, has a plate shape, and has the shape of a plate body. 2 includes a second wing portion 322 covering the bearing 120. That is, the second fixing part 320 is screwed into the first fixing part 310 so that the first fixing part 310 and the second fixing part 320 are mutually coupled.
- the radius R2 from the center line CL of the first opening O1 to the end of the first wing portion 312 and the pressure bar body ( 410) and the radius R3 from the center line CL of the first opening O1 to the lower end of the insertion groove 420 satisfy Equation 1 below. .
- the radius R2 to the end of the first wing 312 is greater than the radius R1 to the lower end of the pressure bar body 410, so that the end of the first wing 312 is the pressure bar body ( 410) covers part of it. With this configuration, separation of the pressure bar 400 can be prevented.
- the radius (R2) to the end of the first wing portion 312 is formed smaller than the radius (R3) to the lower end of the insertion groove (420). By this configuration, the insertion groove 420 is exposed without being covered by the first wing portion 312 . Accordingly, a tool for rotating the pressure bar 400 can be inserted into the insertion groove 420 .
- the first gawit blade 500 and the second gawit blade 600 can be fixed so as to be parallel to each other. That is, as described above, the first gawit blade 500 and the second gawit blade 600 are mutually coupled by a single fixing part 300. At this time, it also occurs when the first gawit blade 500 and the second gawit blade 600 are disposed obliquely to each other so that they are not parallel.
- the present invention is that a plurality of pressure bars 400 are inserted into the plurality of through holes 521, respectively, so that the insertion depth can be adjusted for each pressure bar 400, so that the first razor blade 500 and the second razor blade 600 ) can be parallel to each other to maintain the cutting performance of the hair.
- the thrust bearing 200 may be formed of a rolling element 210, an upper contact plate 230, and a lower contact plate.
- the lower contact plate may be an inner surface of the second holding jaw 620 protruding inwardly formed integrally with the second scissors blade.
- the thickness of the scissors can be increased when all of these are inserted into the scissors.
- the lower contact plate does not use the configuration of the lower contact plate, and the inner surface of the second locking jaw 620 protruding inwardly formed integrally with the second scissors blade is used as the inner surface of the lower contact plate. A remarkable effect of reducing the thickness of the scissors by using it instead is expected.
- a ring-shaped seating groove corresponding to the seating groove 231 formed on the upper contact plate 230 is formed on the inner surface of the second locking jaw 620 so that the rolling element can accurately roll. It can be.
- the pressure bar 400 is screwed into the through hole 521, the first holding jaw 520 is spaced apart from the upper contact plate 230 by a predetermined distance L2, and is connected to the first fixing part 310. 2 fixing part 320 is mutually coupled so that the first gawitnal body 510 and the second gawitnal body 610 are spaced apart by a predetermined distance (D1).
- the pressure bar 400 is screwed into the through hole 521 so as to move forward and backward.
- the distance between the first gawit blade 510 and the second gawit blade 610 changes according to use, the distance can be easily adjusted by the fixing part 300 and the pressure bar 400. That is, after separating the first fixing part 310 and the second fixing part 320 of the fixing part 300 by a predetermined distance, the pressing bar 400 is moved forward and backward to move the first razor blade 510 back and forth. it gets thicker In other words, by adjusting the distance between the first fixing part 310 and the second fixing part 320, firstly adjust the distance between the first razor blade 510 and the second razor blade 610, and secondarily the The gap is finely adjusted by moving the pressure bar 400 forward and backward.
- the pressure bar 400 may protrude a predetermined distance L2 from the through hole 521 .
- bearing 110 first bearing
- first protrusion 120 second bearing
- fixing part 310 first fixing part
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Abstract
Description
Claims (9)
- 제1가윗날(500)과 제2가윗날(600)을 포함하여 모발을 절단하는 가위에 있어서,상기 제1가윗날(500)과 제2가윗날(600)의 개방부(O)를 관통하여 제1가윗날(500)과 제2가윗날(600)을 결합하는 고정부(300)와, 상기 개방부(O) 내측면에 접하고 상기 고정부(300)가 내부에 삽입되는 한 쌍의 볼 베어링(100)을 구비되며 상기 한쌍의 볼 베어링(100) 사이에는 간격조절수단을 구비하여,제1가윗날(500)과 제2가윗날(600) 사이 간격을 조절하는 가위의 간격 조절 장치.
- 제1항에 있어서,상기 간격조절수단은상기 볼 베어링(100) 사이에 구비되는 스러스트 베어링(200)과, 상기 제1가윗날(500) 일 측에 삽입되어 상기 스러스트 베어링(200)을 가압하는 가아 바아(400)를 포함하여,상기 가압 바아(400)의 전후진에 의해 제1가윗날(500)과 제2가윗날(600)사이의 간격을 조절하는 가위의 간격 조절 장치.
- 제1항 또는 제2항에 있어서,상기 제1가윗날(500)은 제1개방부(O1)가 형성되는 판체 형상의 제1가윗날 본체(510)와, 상기 제1개방부(O1) 중 제2가윗날(600) 방향 측면에서 내향 돌출되는 제1걸림턱(520)을 포함하고,상기 제2가윗날(600)은 제2개방부(O2)가 형성되는 판체 형상의 제2가윗날 본체(610)와, 상기 제2개방부(O2) 중 제1가윗날(500) 방향 측면에서 내향 돌출되는 제2걸림턱(620)을 포함하고, 상기 제1개방부(O1)와 제2개방부(O2)는 상호 연통되어 상기 개방부(O)를 형성하며,상기 볼 베어링(100)의 외륜 중 일부는 돌출되어 상기 제1걸림턱(520) 및 제2걸림턱(620)에 걸림되는 가위의 간격 조절 장치.
- 제3항에 있어서,상기 볼 베어링(100)은 상기 제1개방부(O1)에 구비되는 제1볼 베어링(110)과 상기 제2개방부(O2)에 구비되는 제2볼 베어링(120)을 포함하고,상기 제1볼 베어링(110)의 외륜(111) 중 일부는 제1돌출부(111-1)가 돌출되어 상기 제1걸림턱(520)에 걸림되고,상기 제2볼 베어링(120)의 외륜(121) 중 일부는 제2돌출부(121-1)가 돌출되어 상기 제2걸림턱(620)에 걸림되고,상기 스러스트 베어링(200)은 상기 제1걸림턱(520)과 제2걸림턱(620) 사이에 배치되는 전동체(210)와, 상기 제1걸림턱(520) 내측에 배치되고 상기 전동체(210)가 접하는 접촉판(230)을 포함하고, 상기 접촉판(230)에는 안착홈(231)이 형성되어 상기 전동체(210)가 안착되는 가위의 간격 조절 장치.
- 제4항에 있어서,상기 제1걸림턱(520)에는 관통공(521)이 형성되어 가압 바아(400)가 삽입되고,상기 가압 바아(400)는 상기 관통공(521)과 나사 결합하는 가압 바아 본체(410)와, 상기 가압 바아 본체(410)의 일 측면에 요홈되어 공구가 삽입되는 삽입홈(420)을 포함하고,상기 제1개방부(O1) 및 제2개방부(O2)에 삽입되는 고정부(300)는 상기 각 개방부(O1,O2)에 삽입되고 볼 베어링(100)의 내륜(112)이 접하는 제1고정부(310)와 상기 제1고정부(310) 내부에 삽입되고 상호 나사 결합하는 제2고정부(320)를 포함하며,상기 제1고정부(310)는 상기 제1개방부(O1) 및 제2개방부(O2) 내부에 삽입되고 상기 제2고정부(320)가 내부에 결합되는 제1원통부(311)와, 상기 제1원통부(311)의 일 측단에 형성되고 판체 형상을 가지며 상기 제1베어링(110)을 덮는 제1날개부(312)를 포함하고,상기 제2고정부(320)는 상기 제1원통부(311) 내부에 나사 결합하는 제2원통부(321)와 제2원통부(321) 타 측단에 형성되고 판체 형상을 가지며 상기 제2베어링(120)을 덮는 제2날개부(322)를 포함하는 가위의 간격 조절 장치.
- 제5항에 있어서,상기 제1개방부(O1)의 중심선(CL)에서 상기 제1날개부(312) 끝단까의 반경(R2)과, 상기 제1개방부(O1)의 중심선(CL)에서 가압 바아 본체(410)의 하단까지의 반경(R1)과, 상기 제1개방부(O1)의 중심선(CL)에서 상기 삽입홈(420)의 하단까지의 반경(R3)사이는 아래의 수학식1을 만족하는 가위의 간격 조절 장치.R3<R2<R1 (수학식1)
- 제6항에 있어서,상기 관통공(521)은 개방부(O) 주위로 다수 개 구비되고, 상기 다수 개의 관통공(521)에 다수 개의 가압 바아(400)가 각각 삽입되는 가위의 간격 조절 장치.
- 제7항에 있어서,상기 스러스트 베어링(200)는 전동체(210) 와 상부접촉판(230)과 하부접촉판으로 형성되는 것을 특징으로 가위의 간격 조절 장치.
- 제8항에 있어서,상기 하부접촉판은 제2가위날과 일체로 형성된 내향 돌출되는 제2걸림턱(620)의 내측면을 하부접촉판의 내측면으로 사용함으로써 별도로 하부접촉판을 사용하지 않음으로써 가위의 두께를 작게 하는 것을 특징으로 하는 가위의 간격 조절 장치.
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