WO2016060402A1 - 캐스터 및 캐스터를 포함하는 화이트 보드 - Google Patents
캐스터 및 캐스터를 포함하는 화이트 보드 Download PDFInfo
- Publication number
- WO2016060402A1 WO2016060402A1 PCT/KR2015/010594 KR2015010594W WO2016060402A1 WO 2016060402 A1 WO2016060402 A1 WO 2016060402A1 KR 2015010594 W KR2015010594 W KR 2015010594W WO 2016060402 A1 WO2016060402 A1 WO 2016060402A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- shaft
- caster
- wheel
- eccentric
- main body
- Prior art date
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43L—ARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
- B43L1/00—Repeatedly-usable boards or tablets for writing or drawing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B33/00—Castors in general; Anti-clogging castors
- B60B33/04—Castors in general; Anti-clogging castors adjustable, e.g. in height; linearly shifting castors
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43L—ARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
- B43L1/00—Repeatedly-usable boards or tablets for writing or drawing
- B43L1/02—Slates
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B33/00—Castors in general; Anti-clogging castors
- B60B33/02—Castors in general; Anti-clogging castors with disengageable swivel action, i.e. comprising a swivel locking mechanism
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B33/00—Castors in general; Anti-clogging castors
- B60B33/04—Castors in general; Anti-clogging castors adjustable, e.g. in height; linearly shifting castors
- B60B33/06—Castors in general; Anti-clogging castors adjustable, e.g. in height; linearly shifting castors mounted retractably
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B33/00—Castors in general; Anti-clogging castors
- B60B33/04—Castors in general; Anti-clogging castors adjustable, e.g. in height; linearly shifting castors
- B60B33/06—Castors in general; Anti-clogging castors adjustable, e.g. in height; linearly shifting castors mounted retractably
- B60B33/063—Castors in general; Anti-clogging castors adjustable, e.g. in height; linearly shifting castors mounted retractably by linear movement parallel to swivel axis
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B2200/00—Type of product being used or applied
- B60B2200/20—Furniture or medical appliances
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B2900/00—Purpose of invention
- B60B2900/10—Reduction of
- B60B2900/112—Costs
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B2900/00—Purpose of invention
- B60B2900/30—Increase in
- B60B2900/331—Safety or security
- B60B2900/3312—Safety or security during regular use
Definitions
- the present invention relates to a white board including a caster and a caster, and more particularly, a caster and a caster mounted on a bridge or furniture including a white board to easily convert the transfer and stop states through the appearance of the wheels. It relates to a whiteboard to include.
- One of the casters including the device for stopping the rotation of the wheels "wheel for chairs” is disclosed in Republic of Korea Patent No. 10-0340292 (Jun. 12, 2002), a rotating leg extending in the multi-direction at the bottom of the seat And a chair for supporting a chair having a rotating support for adjusting a height between the seat and the rotating leg, and a plurality of wheels respectively provided at a lower end of the rotating leg, the pinions being formed on inner surfaces of the plurality of wheels, respectively.
- the member is accommodated in the rotary support and the rotary leg to move up and down, and the lower end of the rotary leg protrudes outwards to simultaneously rotate or rotate the plurality of wheels while being coupled or separated to correspond to one side of the plurality of pinion members.
- a connecting rod for controlling a pedestal which is installed at a predetermined height inside the rotating support to guide the upper end of the connecting rod to a predetermined height, and It is installed between the lower part of the pedestal and one side of the connecting rod is applied by a spring to apply a resilient force to the connecting rod descends, the upper end of the connecting rod protruding to the upper portion of the pedestal and the hinge pin and one end thereof is rotated It includes an operating lever which protrudes to the outside through the support to move the connecting rod up.
- the chair wheels are configured to be braked or separately braked so that a plurality of wheels installed on the rotary legs are not rotated at the same time according to the operation position of the control lever, thereby providing an effect of preventing shaking or movement due to the wheels.
- the operation is difficult, and the structure thereof is very complicated, resulting in a rise in manufacturing cost and low assembly.
- the rotating shaft is provided in the center A wheel support radially surrounding a portion of the wheel and connected to the rotating shaft;
- a moving part formed in a shape surrounding the wheel support, connected to the rotating shaft to move up and down with respect to the wheel and the wheel support by a predetermined distance, and on one side a fixture that can fix the rotation of the wheel when moving downwards of the moving part A moving part provided above the wheel;
- An elastic body inserted into an upper end of the moving part and a guide column formed on an upper end of the wheel support; It includes, the bridge is a rotational pin of the linear rotatable upwards by a certain height with respect to the top of the guide pillar through the bridge, the pivoting pin is made of a long or oval stopper fixed inside the hollow leg will be.
- the wheel rotation automatic fixing device moves downwards by the moving part and the fixture is in contact with the wheel so that the rotation of the wheel is automatically fixed and the load applied to the leg.
- the moving part is moved upward by the restoring force of the elastic body so that the fixture can be rotated by falling off the wheel, the stopper fixed to the rotary pin is rotated to rotate the upper end of the guide pillar formed on the top of the wheel support
- the pressurization is to stop the rise of the wheel to be movable.
- it is a structure that stops when a load is applied and stops when a load is terminated.
- the rotation pin stops the operation of the guide pillar by rotating the stopper, but operates the stopper. Since there is no device for fixing the stopper is easily rotated even after a small vibration and shock occurs, the wheel is raised, so that the contact with the fixture there is a problem that the rotation of the wheel is stopped.
- one of the casters including a device for moving and stopping through the appearance of the conventional wheels "rotary wheel for moving body installation" is disclosed in the Republic of Korea Patent Publication No. 10-2008-0015242 (2008.02.19.), Wheel installation
- the wheel is mounted eccentrically to the member, and the moving body mounting member is coupled to the wheel mounting member by the shaft, and the ball bearing device is interposed between the wheel mounting member and the moving body mounting member, wherein the cylindrical body is formed on the moving body mounting member.
- the post is installed on the outer circumferential surface, it is made by combining the adjusting device consisting of a screw formed on the inner surface of the support and the screw portion formed on the outer circumferential surface of the cylindrical portion for adjusting the installation height of the support between the cylindrical portion and the support.
- the rotating body for installing the moving wheel is to stop or move by rotating the cylindrical support or the height adjustment nut by the appearance of the wheel when the installation position of the support is adjusted up and down, the inflow or protruding to the inside of the support.
- a load is applied, it is very difficult to manipulate the cylindrical prop itself or the height adjusting nut by artificial force.
- one of the casters including the device for moving and stopping through the appearance of the conventional wheels "sun caster” is disclosed in the Republic of Korea Patent Publication No. 10-2005-0114596 (published on Dec. 6, 2005), the lower step A housing having a hoist having a perforated passage, a hoisting piece which is selectively latched on the step and can be hoisted along the hoist and is elastically installed downwardly with a spring in the housing, and a caster installed under the hoisting piece, and the housing;
- the elevating piece is provided with a stopping means capable of intermittently raising and lowering the caster.
- the stopper comprises a stopper groove formed on the outer circumferential surface of the elevating piece, and a stopper elastically installed in the coupling hole formed in the housing so as to be selectively stopped in the stopper groove and angle-adjusted from the pin.
- the caster uses the spring force to cast the wheel into or out of the support, and when the load is applied, the wheel is introduced into the support and when the load is released, the wheel protrudes out of the support to provide convenience. .
- a stopper for preventing this and maintaining an opponent with the wheel protruding out of the support for movement is to prevent the lifting of the lifting piece or, conversely, to stop the movement by stopping the lifting of the lifting piece to stop the movement by introducing the wheel into the support. It must be terminated.
- an object of the present invention is to provide a caster having a lifting means and a fixing means so that the wheel can be haunted more easily and each position can be stably maintained. .
- another object of the present invention is to provide a white board including a caster having a lifting means and a fixing means to easily put out the wheel and maintain each position state stably.
- Caster of the present invention for achieving the above object is a wheel that combines the lower end of the fixed shaft is formed with an external thread to the upper fastening nut; After passing through the fixed shaft of the wheel and the shaft hole is drilled in the center and the working shaft hole formed in the circumferential surface to be fastened with a nut, and an eccentric shaft fitted into the working shaft hole of the slide member formed on one side and protruded to the other center Wheel lifting means consisting of an eccentric rotating member having an axial bolt; A first operating space penetrated in a vertical center to allow the slide member to move up and down, a second operating space through which the wheel can rotate and move, and an eccentric member to be inserted into the first operating space A main body formed with a third working space formed to penetrate in the horizontal direction and a female screw for fastening formed thereon; Coupling hole inserted into the axial bolt of the eccentric rotation member is screwed into the axial bolt of the eccentric rotation member and the fixing nut fixed to the operating lever screwed to the axial bolt of the
- the white board including the caster and the caster according to the present invention even if a load is applied, the slide member fixing the wheel is easily lifted through the eccentric shaft rotation of the eccentric rotation member, so that the wheel is haunted from the body to move or stop, simple structure
- the first fixing part or the second fixing part of the eccentric rotation member can be prevented from detachment and rotation stop can be performed to maintain a stable state that can be stopped or moved, it is very convenient to use and its structure is simple It is useful to make savings.
- FIG. 1 is an exploded perspective view showing a caster according to the present invention.
- Figure 2 is a perspective view showing a state in which a part of the caster according to the present invention combined.
- FIG. 3 is a partially exploded perspective view showing a white board including a caster according to the present invention
- Figures 4a to 4c is a cross-sectional view and a longitudinal sectional view showing a partially enlarged operation of the caster according to the present invention.
- Figure 5 is an enlarged perspective view of the main portion of another embodiment of the first fixing part showing a state in which the operating lever of the caster according to the present invention is coupled to the eccentric rotation member.
- FIG. 6 is an exploded perspective view showing a second fixing part of the caster according to the present invention.
- Figure 7 is a longitudinal cross-sectional view showing the operation of the second fixing part of the caster according to the present invention.
- slide member 31 shaft hole
- finishing ring 212 stop pin
- fixing pin 220 second fixing part
- 1 and 3 is an exploded perspective view of the caster according to an embodiment of the present invention and a part of the white board including the caster, 1 is a caster, 2 is a wheel, 3 is a slide member, 4 is an eccentric rotation
- the member 5 represents the main body
- 6 represents the operating lever
- 9 represents the white board
- 91 represents the stand
- 92 represents the pillar frame
- 93 represents the pedestal.
- the caster 1 mounted on a parish or furniture bottom of a blackboard, a white board, or the like and movable is mounted on the main body 5 and the main body 5 to lift and stop the wheels 2.
- the wheel 2 is made by combining the lower end of the fixed shaft 21, the male screw 22 is formed to the upper side so that the nut 23 is fastened.
- the lifting means for lifting the wheel 2 to the lower portion of the main body 5 is composed of a slide member 3 and an eccentric rotation member 4 for operating the slide member (3).
- the slide member (3) is made of a shaft hole 31 penetrating the fixed shaft 21 of the wheel (2) in the center and the working shaft hole 32 of the long hole is extended in the horizontal direction on the circumferential surface is formed. That is, the slide member 3 is accommodated in the main body 5 to move up and down to serve to wander the wheel (2).
- the eccentric rotation member 4 is formed by forming an eccentric shaft 41 fitted into the operating shaft hole 32 of the slide member 3 on one side and integrally forming an axial bolt 42 protruding to the other center. On the other hand, while the eccentric rotation member 4 rotates at an angle of about 95 to 100 degrees, the eccentric shaft 41 serves to vertically move the slide member 3.
- the main body 5 includes a first operating space 51 penetrating through the center in the vertical direction so that the slide member 3 can be inserted and moved up and down, and a second operating space 52 through which the wheel 2 can rotate and move.
- the eccentric rotation member 4 are inserted into the eccentric shaft 41 into the first operating space 51 to be inserted into the operating shaft hole 32 of the slide member 3 in the horizontal direction to form a third operation. It is made by forming the space 52 and the female screw 53 for fastening in the upper part.
- the coupling hole 61 fitted into the shaft bolt 42 of the eccentric rotation member 4 is provided with an operating lever 6 drilled in the center to rotate the eccentric rotation member 4.
- Coupling hole 61 of the operating lever 6 to be fitted to the shaft bolt 42 is also formed in a straight plane coinciding with the planar portion of the shaft bolt 42, or as shown in Figure 5 attached to the eccentric rotation member (4)
- the fixing pin 213 is coupled to the fixing pin 213, so that the fixing hole 62 is formed in the operating lever 6 so as to be fitted.
- Coupling means for easily transmitting the rotational force of the operating lever 6 to the eccentric rotation member 4 is not limited to this, and instead of the shaft bolt 42 of the eccentric rotation member 4, the operation lever with a screw not shown Note that it is also possible to fix (6) directly to the eccentric rotation member (4).
- a fixing nut 24 is provided that is screwed to the shaft bolt 42 of the eccentric rotation member 4 to fix the operating lever 6.
- the fixing consisting of the first fixing part 210 or the second fixing part 220 to stop the separation and rotation of the eccentric rotation member (4) fitted in the third operating space 53 of the main body (5). It includes a means.
- the first fixing part 210 which is one of the fixing means, is formed so as to prevent the eccentric rotation member 4 fitted into the third operating space 53 of the main body 5, as shown in FIGS. 3 consists of a closing ring 211 screwed to the tip of the working space 53, and a stop pin 212 fixed to the outside of the inlet of the third working space 53 of the main body (5).
- the position of the stop pin 212 stops when the eccentric shaft 41 of the eccentric rotation member 4 reaches the rotation angle ⁇ outside the vertical center line as shown in (A) and (B) of FIG. 4C. It is a position for stopping the rotation of the operating lever (6) as possible, and serves as a stopper.
- the second fixing part 220 which is one of the fixing means, replaces the finishing ring 211 and the stop pin 212 of the first fixing part 210, and as shown in FIGS.
- the guide groove 43 and the stop grooves 44 are formed at both ends of the guide groove 34 on the circumferential surface of the eccentric rotation member 4, and are fitted into the guide grooves 34 and the stop groove 44 to be folded.
- the support rod 221 having a hemispherical shape and a protruding flange in the center thereof, a spring 222 providing elastic force to the support rod 221, and a main body 5 to accommodate the support rods 221 and the spring 222.
- It includes a stopper 222 screwed to the tip of the drilling receiving space 55 in the upper portion so as to communicate with the third operating space (53) of. And the hemispherical lower end of the support bar 221 is inserted into the guide groove 43 and the stop groove 44 formed on the circumferential surface of the eccentric rotation member 4, so that the eccentric rotation member 4 is the main body because it serves as a locking projection. Departure from the third working space 53 of (5) is prevented.
- the cross-sectional shape of the first operating space 51 of the main body 5 and the slide member 3 moving up and down in the first operating space 51 may be circular or as shown in FIG. It may be formed as a square.
- the cast 1 of the present invention configured as described above will be mounted on the white board 9 which is one of the teaching aid and the furniture as shown in FIG. That is, the upper part of the main body 5 of the cast 1 is brought into contact with the pedestal 93 fixed to the bottom of the pillar frame 92 of the stand 91 on which the white board 9 is mounted. Mounting is completed by passing the screw portion through a hole drilled in the pedestal 93 and then screwing it into the female screw 54 formed on the upper end of the main body 5 of the caster 1.
- the wheel 2 should be lowered below the second working space 52 of the main body 5 so that the wheel 2 is in contact with the floor.
- the slide member 3 is located at the lowermost end, and the eccentric shaft 41 of the eccentric rotation member 4 is positioned on the vertical center line, and is freely rotated by external vibration or shock. Since the member 4 can be rotated, it is necessary to set the stop position to maintain the lowered state of the wheel 2 for movement while preventing this.
- the stop pin 212 stops rotating the operating lever 6 so that the operating lever 6 for rotating the eccentric rotating member 4 can no longer be rotated when the rotation angle ⁇ that has been rotated 10 degrees further. Is achieved.
- the hemispherical lower end of the support rod 221 is the circumference of the eccentric rotation member 4 by the elastic force of the spring 222 as shown in FIG.
- the guide While the groove 43 rotates while contacting the hemispherical lower end of the support bar 221
- the wheel 2 also protrudes from the lower part of the main body 5 as shown in FIG. Since the hemispherical lower end of the support rod 221 is fitted to the stop groove 44 formed on the circumferential surface of the wheel 2 in a stable state, it is movable.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Legs For Furniture In General (AREA)
- Toys (AREA)
- Drawing Aids And Blackboards (AREA)
Abstract
Description
Claims (3)
- 교구 또는 가구 저면에 장착되는 캐스터(1)에 있어서,너트(23)가 체결되도록 상측으로 수나사(22)가 형성된 고정축(21)의 하단을 결합한 바퀴(2);상기 바퀴(2)의 고정축(21)을 관통시키는 축공(31)이 중앙에 천공되고 둘레 면에 작동축공(32)이 형성된 슬라이드부재(3)와, 상기 슬라이드부재(3)의 작동축공(32)에 끼워지는 편심축(41)을 일측에 형성하고 타측 중심에 돌출 형성되는 축볼트(42)를 갖는 편심회전부재(4)로 이루어지는 승강수단;상기 슬라이드부재(3)가 끼워져 상하 이동할 수 있도록 수직방향 중앙에 관통 형성되는 제1 작동공간(51)과, 상기 바퀴(2)가 회전 및 상하이동할 수 있는 제2 작동공간(52)과, 편심회전부재(4)가 끼워져 편심축(41)이 제1 작동공간(51)로 유입되도록 수평방향으로 관통 형성되는 제3 작동공간(53)과, 상부에 체결용 암나사(54)가 형성되어 이루어지는 본체(5);상기 편심회전부재(4)의 축볼트(42)에 끼워지는 결합공(61)이 중앙에 천공된 작동레버(6);상기 편심회전부재(4)의 축볼트(42)에 나사결합되어 작동레버(6)를 고정시키는 고정너트(24); 및상기 본체(5)의 제3 작동공간(53)에 끼워지는 편심회전부재(4)의 이탈방지 및 회전을 정지시키도록 제1 고정부(210) 또는 제2 고정부(220)로 이루어지는 고정수단을 포함하는 것을 특징으로 하는 캐스터.
- 제1항에 있어서, 상기 제1 고정부(210)는 본체(5)의 제3 작동공간(53)의 선단에 나사결합되는 마감링(211) 및 본체(5)의 제3 작동공간(53)의 입구 외측에 고정된 멈춤핀(212)으로 이루어지고;상기 제2 고정부(220)는 편심회전부재(4)의 둘레 면에 형성되는 가이드홈(43) 및 이 가이드홈(34)의 양단에 형성되는 멈춤홈(44)에 접하도록 하부가 반구형이면서 중앙에 돌출 플랜지를 갖는 지지봉(221)과, 이 지지봉(221)에 탄성력을 제공하는 스프링(222)과, 상기 지지봉(221) 및 스프링(222)을 수용시키도록 본체(5)의 제3 작동공간(53)과 연통하도록 상부에 천공 수용공간(55)의 선단에 나사결합되는 마개(222)를 포함하여 이루어지는 것을 특징으로 하는 캐스터.
- 제1항 또는 제2항 중 어느 하나의 캐스터(1)가 화이트 보드(9)를 거치하는 스탠드(91)의 기둥프레임(92) 하단에 고정된 받침대(93)에 접하고, 받침대(93)를 관통하여 캐스터(1)의 본체(5) 상단에 형성된 암나사(54)에 나사결합되는 체결볼트(25)에 의해 장착되는 캐스터를 포함하는 화이트 보드.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
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US15/518,532 US9908363B2 (en) | 2014-10-15 | 2015-10-07 | Caster and whiteboard comprising caster |
CN201580056086.2A CN106794708B (zh) | 2014-10-15 | 2015-10-07 | 脚轮及含脚轮的白板 |
JP2017519897A JP6315872B2 (ja) | 2014-10-15 | 2015-10-07 | キャスター及びキャスター付きホワイトボード |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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KR20140138917A KR101504241B1 (ko) | 2014-10-15 | 2014-10-15 | 캐스터 및 캐스터를 포함하는 화이트 보드 |
KR10-2014-0138917 | 2014-10-15 |
Publications (1)
Publication Number | Publication Date |
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WO2016060402A1 true WO2016060402A1 (ko) | 2016-04-21 |
Family
ID=53028060
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/KR2015/010594 WO2016060402A1 (ko) | 2014-10-15 | 2015-10-07 | 캐스터 및 캐스터를 포함하는 화이트 보드 |
Country Status (5)
Country | Link |
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US (1) | US9908363B2 (ko) |
JP (1) | JP6315872B2 (ko) |
KR (1) | KR101504241B1 (ko) |
CN (1) | CN106794708B (ko) |
WO (1) | WO2016060402A1 (ko) |
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US10401126B1 (en) | 2016-04-22 | 2019-09-03 | Safe Space Solution, Llc | Ballistic presentation board assembly |
CN108041862A (zh) * | 2017-12-12 | 2018-05-18 | 柳州市鼎福通用机械厂 | 方便移动的支撑结构及应用该结构的家具 |
US10875352B1 (en) * | 2017-12-20 | 2020-12-29 | Dony Dawson | Wall mounted display board system with a base castor and method of use |
USD865065S1 (en) | 2018-04-18 | 2019-10-29 | Safe Place Solution, Llc | Ballistic presentation board |
KR102077267B1 (ko) * | 2019-06-14 | 2020-02-13 | (주)야흥금속 | 책걸상용 캐스터 장치 |
NO345499B1 (en) * | 2019-06-27 | 2021-03-08 | Wheel Me As | Roller device with eccentric wheel axle |
CN112128533A (zh) * | 2020-09-11 | 2020-12-25 | 河南城建学院 | 一种可调式日语教学辅助装置及教学设备 |
US11445826B2 (en) * | 2020-12-11 | 2022-09-20 | Xiamen Sheng Cheng Xin Technology Co., Ltd. | Whiteboard |
KR102267115B1 (ko) | 2021-04-13 | 2021-06-21 | 주식회사 야흥금속 | 가구용 캐스터 장치 |
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Also Published As
Publication number | Publication date |
---|---|
US20170232783A1 (en) | 2017-08-17 |
CN106794708A (zh) | 2017-05-31 |
US9908363B2 (en) | 2018-03-06 |
JP6315872B2 (ja) | 2018-04-25 |
JP2017538615A (ja) | 2017-12-28 |
CN106794708B (zh) | 2020-01-24 |
KR101504241B1 (ko) | 2015-03-19 |
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