CN107054551B - Bicycle front derailleur - Google Patents
Bicycle front derailleur Download PDFInfo
- Publication number
- CN107054551B CN107054551B CN201710193170.XA CN201710193170A CN107054551B CN 107054551 B CN107054551 B CN 107054551B CN 201710193170 A CN201710193170 A CN 201710193170A CN 107054551 B CN107054551 B CN 107054551B
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- CN
- China
- Prior art keywords
- lining
- front derailleur
- connecting rod
- bicycle front
- spherical surface
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- Legal status (The legal status 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 status listed.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
- B62M9/00—Transmissions characterised by use of an endless chain, belt, or the like
- B62M9/04—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio
- B62M9/06—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio using a single chain, belt, or the like
- B62M9/10—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio using a single chain, belt, or the like involving different-sized wheels, e.g. rear sprocket chain wheels selectively engaged by the chain, belt, or the like
- B62M9/12—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio using a single chain, belt, or the like involving different-sized wheels, e.g. rear sprocket chain wheels selectively engaged by the chain, belt, or the like the chain, belt, or the like being laterally shiftable, e.g. using a rear derailleur
- B62M9/131—Front derailleurs
- B62M9/134—Mechanisms for shifting laterally
Abstract
The invention provides a bicycle front derailleur, which comprises a base, an inner side connecting rod, an outer side connecting rod and a chain guide piece, wherein the base, the inner side connecting rod, the outer side connecting rod and the chain guide piece are mutually hinged; the clamping assembly further comprises a first lining part and a second lining part, the first lining part is rotatably connected with the fixed part, the spherical surface of the first lining part is in surface contact fit with the spherical surface of the fixed part, and the spherical surface of the second lining part is in surface contact fit with the spherical surface of the movable part. After the clamping assembly clamps the stand pipe of the frame, the first lining part and the second lining part are abutted to the stand pipe, the first lining part and the second lining part have rotational freedom degrees relative to the fixed part and the movable part ball, the angle of the base is adjusted firstly, and then the clamping assembly is locked to control the installation angle of the front derailleur, so that the function of the front derailleur is not affected.
Description
Technical Field
The present invention relates to a bicycle front derailleur, and more particularly, to a bicycle front derailleur with a controllable mounting angle.
Background
The existing bicycle front derailleur comprises a base and a chain guide part which is connected to the base in a rotating mode through an inner connecting rod and an outer connecting rod to form a swing rod, the extending tail end of a shifting wire is fixed to the inner connecting rod, the outer connecting rod or the chain guide part, the length of the shifting wire changes, the shifting wire generates traction force or pushing force to the inner connecting rod, the outer connecting rod or the chain guide part, the chain guide part swings directionally, a chain penetrating through the chain guide part is guided to the other horizontal position, the chain penetrates through the chain guide part to be loosened and matched with the other chain wheel, and gear shifting is achieved.
Wherein, be provided with the centre gripping subassembly on the base, the centre gripping subassembly include with base relatively fixed part and movable part, the first end of fixed part rotates with the first end of movable part to be connected, the second end of fixed part and the second end of movable part are held through the bolt and are realized dismantling the connection, form the centre gripping way between fixed part and the movable part, the bicycle front derailleur pass through the centre gripping subassembly centre gripping with on the frame of bicycle.
The problem with the prior art bicycle front derailleur is that because the clamping assembly is fixed relative to the base, the bicycle front derailleur remains fixed relative to the frame after the bicycle front derailleur is mounted to the frame by the clamping assembly. However, due to manufacturing errors of the frames or different models of the frames, the seat tube of the frames may have an angular difference, and the front derailleur may have an angular deviation after being mounted on the seat tube, which may affect the functionality of the front derailleur.
Disclosure of Invention
The present invention is directed to a bicycle front derailleur with a controllable mounting angle.
The invention provides a bicycle front derailleur, which comprises a base, an inner side connecting rod, an outer side connecting rod and a chain guide piece, wherein the inner side connecting rod is hinged with the base, the inner side connecting rod is hinged with the chain guide piece, the outer side connecting rod is hinged with the base, and the outer side connecting rod is hinged with the chain guide piece; the clamping assembly is arranged on the base and comprises a fixed part and a movable part, the first end of the movable part is hinged to the first end of the fixed part, the second end of the movable part and the second end of the fixed part are locked through a bolt, and a clamping channel is formed between the movable part and the fixed part; the clamping assembly further comprises a first lining piece and a second lining piece, wherein a first spherical surface of the first lining piece is in surface contact fit with a second spherical surface of the fixed part, and a third spherical surface of the second lining piece is in surface contact fit with a fourth spherical surface of the movable part; the first inner surface of the first lining part and the second inner surface of the second lining part are arranged oppositely in the clamping channel.
According to the scheme, after the clamping assembly clamps the vertical pipe of the frame, the first lining part and the second lining part are abutted to the vertical pipe, the first lining part and the second lining part are respectively contacted with the spherical surfaces of the fixed part and the movable part, the first lining part and the second lining part have rotational freedom relative to the spherical surfaces of the fixed part and the movable part, the angle of the base is adjusted firstly, and then the clamping assembly is locked to control the installation angle of the front derailleur, so that the function of the front derailleur is not affected.
The third spherical surface is a convex spherical surface, and the fourth spherical surface is a concave spherical surface.
Further, an end face of the first lining member may abut against the fixed portion, and an end face of the second lining member may abut against the movable portion.
According to a further scheme, a first arc-shaped groove is formed in the fixing portion, the bottom surface of the first arc-shaped groove is a second spherical surface, the middle of a first side face of the first arc-shaped groove protrudes and is bent, the first side face forms a first upper side face and a first lower side face which are respectively located on the upper side and the lower side of the bent portion, a first lining piece is arranged in the first arc-shaped groove, and the end face of the first lining piece selectively abuts against the first upper side face or the first lower side face.
The movable part is provided with a second arc-shaped groove, the bottom surface of the second arc-shaped groove is a fourth spherical surface, the middle part of the second side surface of the second arc-shaped groove is protruded and bent, the second side surface forms a second upper side surface and a second lower side surface which are respectively positioned at the upper side and the lower side of the bent part, the second lining part is arranged in the second arc-shaped groove, and the end surface of the second lining part selectively abuts against the second upper side surface or the second lower side surface.
As can be seen, the fixed portion and the movable portion have a certain control range relative to the rotation angle between the first lining member and the second lining member.
The clamping assembly further comprises an adjusting bolt; the adjusting bolt penetrates through the threaded through hole of the movable part and abuts against the second lining part or the adjusting bolt penetrates through the fixed part and abuts against the first lining part.
Therefore, the first lining piece and the second lining piece can further clamp the opposite pipe relative to the fixed part and the movable part, and the stability is improved.
Further, the first lining member is located between the upper end surface and the lower end surface of the fixed portion, and the second lining member is located between the upper end surface and the lower end surface of the movable portion.
As can be seen, the first lining part and the second lining part do not interfere with the movement of the fixed part and the movable part.
Further, the fixing part and the base are integrally formed.
Therefore, the fixing part and the base are integrally formed, so that the position precision between the chain guide piece and the vertical pipe can be improved.
In a further aspect, the first inner surface of the first lining member and the second inner surface of the second lining member are located on the same circumferential surface.
Therefore, the first lining part and the second lining part are better in matching stability with the stand pipe.
In a further aspect, the first lining element is made of metal, plastic or ceramic, and the second lining element is made of metal, plastic or ceramic.
Drawings
FIG. 1 is a block diagram of an embodiment of the bicycle front derailleur in accordance with the present invention.
FIG. 2 is an exploded view of the embodiment of the bicycle front derailleur in accordance with the present invention.
FIG. 3 is a block diagram of the clamping assembly in the embodiment of the bicycle front derailleur in accordance with the present invention.
FIG. 4 is an exploded view of the clamping assembly in the embodiment of the bicycle front derailleur in accordance with the present invention.
Fig. 5 is an enlarged view of a portion a in fig. 4.
FIG. 6 is a schematic view of a first state of the bicycle front derailleur embodiment in accordance with the present invention.
FIG. 7 is a schematic view of a second state of the bicycle front derailleur embodiment in accordance with the present invention.
The invention is further explained with reference to the drawings and the embodiments.
Detailed Description
Referring to FIG. 1, FIG. 1 is a block diagram of an embodiment of the bicycle front derailleur in accordance with the present invention. The bicycle front derailleur is mounted on a vertical pipe on a frame and used for switching the position of a chain matched on a front chain wheel set to realize gear shifting. The bicycle front derailleur comprises a base 1, an outer side connecting rod 2, an inner side connecting rod (not shown in the figure) and a chain guide piece, wherein a clamping assembly 100 is arranged on the base 1, a clamping channel 101 is arranged in the middle of the clamping assembly 100, the clamping channel 101 is a containing position of a vertical pipe, and the bicycle front derailleur can be fixed on the vertical pipe of a frame through the clamping assembly 100 of the base 1. The chain guide 4 is provided with a sprocket slot 43, and the chain passes through the sprocket slot 43.
Referring to FIG. 2, FIG. 2 is an exploded view of the embodiment of the bicycle front derailleur in accordance with the present invention. The base 1 is provided with a hinge point 11 and a hinge point 12, the outside link 2 is provided with a hinge point 21 and a hinge point 22, the inside link 3 is provided with a hinge point 31 and a hinge point 32, and the chain guide 4 is provided with a hinge point 41 and a hinge point 42. The base 1 and the outer connecting rod 2 are hinged through the matching between the hinge point 11 and the hinge point 21; the base 1 and the outer connecting rod 3 are hinged through the matching between the hinge point 12 and the hinge point 31; the outer link 2 and the chain guide 4 are hinged by the cooperation between the hinge point 22 and the hinge point 41; the inner link 3 and the chain guide 4 are hinged by the cooperation between the hinge point 32 and the hinge point 42; a planar rocker mechanism is formed between the base 1, the inner link 3, the outer link 2 and the chain guide 4. Establish the installation department of replacement gear line at inboard connecting rod 3, outside connecting rod 2 or chain guide 4, will shift gears the line and install the installation department after, the selector is taken out tight or the propelling movement then can form the directional swing of chain guide 4 to the gear line, alternates and receives the guide effect at the chain of dialling in chain groove 43, breaks away from behind the first sprocket of former complex, removes to second sprocket place, at last with the cooperation of second sprocket, and then realizes shifting.
Referring to FIG. 3, FIG. 3 is a block diagram of a clamping assembly in an embodiment of the bicycle front derailleur in accordance with the present invention. The clamping component 100 comprises a fixing part 110 and a moving part 120, the fixing part 110 and the base 1 are integrally formed, the fixing part 110 and the moving part 120 are both in a semi-ring shape, a first end of the fixing part 110 and a first end of the moving part 120 are hinged to the hinge joint 103, a second end of the fixing part 110 is provided with a threaded matching hole 171, a second end of the moving part is provided with a threaded matching hole 172, and the fixing part 110 and the moving part 120 are locked by a locking nut after a bolt penetrates through the threaded matching hole 171 and the threaded matching hole 172. Since the fixed part 110 and the movable part 120 are semi-annular, a clamping channel 101 having an arc-shaped inner circumferential surface is formed between the fixed part 110 and the movable part 120, and the section of the clamping channel 101 is substantially circular.
Referring to FIGS. 4 and 5, FIG. 4 is an exploded view of a clamping assembly in an embodiment of the bicycle front derailleur in accordance with the present invention, and FIG. 5 is an enlarged view taken at A in FIG. 4. The inner side of the fixing portion 110 is provided with a first arc-shaped groove 111, the first arc-shaped groove 111 penetrates through the upper end and the lower end of the fixing portion 110, the bottom surface of the first arc-shaped groove 111 is a second spherical surface 112, the second spherical surface 112 is an inward concave spherical surface, the first arc-shaped groove 111 is provided with first side surfaces 113 in a bending shape on two sides of the second spherical surface 112, and the middle of the first side surfaces 113 is raised and bent to form a first upper side surface 113a located on the upper side of the bending position and a first lower side surface 113b located on the lower side of the bending position.
The inner side of the movable part 120 is provided with a second arc-shaped groove 121, the second arc-shaped groove 121 penetrates through the upper end and the lower end of the movable part 120, the bottom surface of the second arc-shaped groove 121 is a fourth spherical surface 122, the fourth spherical surface 122 is an inwards concave spherical surface, the second arc-shaped groove 121 is provided with bent second side surfaces 123 on two sides of the fourth spherical surface 122, and the middle part of each second side surface 123 is convexly bent to form a second upper side surface located on the upper side of the bent part and a second lower side surface located on the lower side of the bent part. The movable portion 120 is provided with a threaded through hole 124, and the adjusting bolt 150 can pass through the threaded through hole 124 to reach the second arc-shaped slot 121.
The clamping assembly 100 further includes a first lining member 130 and a second lining member 140, the first lining member 130 is arc-shaped, the outer surface of the first lining member 130 is a first spherical surface 132, the first spherical surface 132 is an outward convex spherical surface, the first inner surface 131 of the first lining member 130 is an arc surface, and the end surfaces 130a of the two ends of the first lining member 130 are planes. The second lining member 140 is arc-shaped, the outer surface of the second lining member 140 is a third spherical surface 142, the third spherical surface 142 is an outward convex spherical surface, the second inner surface 141 of the second lining member 140 is arc-shaped, and the end surfaces 140a at the two ends of the second lining member 140 are planes. The first and second lining members 130 and 140 are made of metal, plastic or ceramic.
Referring to FIGS. 6 and 7, FIG. 6 is a schematic view of a first state of the bicycle front derailleur embodiment of the present invention, and FIG. 7 is a schematic view of a second state of the bicycle front derailleur embodiment of the present invention. When the bicycle front derailleur is mounted to the seat tube 500, the clamping assembly 100 clamps the seat tube 500 such that the bicycle front derailleur is fixed. In fig. 6, the clamping assembly 100 is in the first clamping state, and the riser 500 is parallel to the extending direction of the clamping duct 101. At this time, the fixed portion 110 and the movable portion 120 are locked by the bolts, the adjusting bolt 150 is locked and pressed against the second lining member 140, and under the locking force of the adjusting bolt 150, the first inner surface 131 on the first lining member 130 and the second inner surface 141 on the second lining member 140, which are oppositely arranged in the clamping channel 101, are located on the same circumferential surface and abut against the circumferential wall of the vertical pipe 500 to clamp the vertical pipe 500. At this time, the end surfaces 130a of the first lining member 130 are not abutted to the first and second upper sides 113a and 113b, and the end surfaces of the second lining member 140 are not abutted to the second upper and second lower sides. In this state, in order to ensure that the first and second lining members 130 and 140 do not interfere with the movement of the fixed portion 110 and the movable portion 120, the first lining member 130 is located between the upper end surface and the lower end surface of the fixed portion 110, and the second lining member 140 is located between the upper end surface and the lower end surface of the movable portion 120.
When the clamping angle needs to be adjusted, the adjusting bolt 150 is firstly twisted to release the contact between the adjusting bolt 150 and the second lining member 140, at this time, the second spherical surface 112 of the fixing portion 110 is in surface contact with the first spherical surface 132 of the first lining member 130, the fourth spherical surface 122 of the movable portion 120 is in surface contact with the second spherical surface 142 of the second lining member 140, and because the two first side surfaces 113 on both sides of the first arc-shaped groove limit the first lining member 130, and the two second side surfaces 123 on both sides of the second arc-shaped groove limit the second lining member 140, the first lining member 130 and the second lining member 140 only have rotational freedom with respect to the fixing portion 110 and the movable portion 120. When the fixed part 110 and the movable part 120 rotate counterclockwise (counterclockwise in the figure), the first upper side surface 113a of the fixed part 110 is far away from the end surface 130a of the first lining member 130, and the first lower side surface 113b is close to the end surface 130a of the first lining member 130. When the end surface 130a abuts against the first upper side surface 113a or the first lower side surface 113b, and correspondingly, when the end surface 140a abuts against the second lower side surface 123b or the second upper side surface 123a, the fixed part 110 and the movable part 120 reach the limit swing angle. After the fixed portion 110 and the movable portion 120 reach the target positions, the adjusting bolt 150 is tightened again, and then the fixed portion 110 and the movable portion 120 are tightened again to complete the installation of the bicycle front derailleur.
Finally, it should be emphasized that the above-mentioned embodiments are merely preferred embodiments of the present invention, and not intended to limit the present invention, and it will be apparent to those skilled in the art that various changes and modifications can be made, such as an adjusting bolt may be further disposed on the fixing portion to abut against the first lining member, and any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.
Claims (7)
1. A bicycle front derailleur comprises a base, an inner connecting rod, an outer connecting rod and a chain guide, wherein the inner connecting rod is hinged with the base, the inner connecting rod is hinged with the chain guide, the outer connecting rod is hinged with the base, and the outer connecting rod is hinged with the chain guide;
the clamping assembly is arranged on the base and comprises a fixed part and a movable part, the first end of the movable part is hinged to the first end of the fixed part, the second end of the movable part and the second end of the fixed part are locked through a bolt, and a clamping channel is formed between the movable part and the fixed part;
the method is characterized in that:
the clamping assembly further comprises a first lining piece and a second lining piece, and a first spherical surface of the first lining piece is in surface contact fit with a second spherical surface of the fixing part; the third spherical surface of the second lining part is in surface contact fit with the fourth spherical surface of the movable part;
a first inner surface of the first lining part and a second inner surface of the second lining part are oppositely arranged in the clamping channel;
the first spherical surface and the third spherical surface are convex spherical surfaces, and the second spherical surface and the fourth spherical surface are concave spherical surfaces;
the end surface of the first lining piece can abut against the fixed part, and the end surface of the second lining piece can abut against the movable part;
the fixing part is provided with a first arc-shaped groove, the bottom surface of the first arc-shaped groove is the second spherical surface, the middle of the first side surface of the first arc-shaped groove is protruded and bent, the first side surface forms a first upper side surface and a first lower side surface which are respectively positioned at the upper side and the lower side of the bent part, the first lining piece is arranged in the first arc-shaped groove, and the end surface of the first lining piece selectively abuts against the first upper side surface or the first lower side surface.
2. The bicycle front derailleur according to claim 1, wherein:
be provided with the second arc wall on the movable part, the bottom surface of second arc wall is the fourth sphere, the second side middle part arch of second arc wall is the form of buckling, the second side forms and is located second upper flank and the second downside of both sides about the department of buckling respectively, the interior lining of second set up in the second arc wall just the terminal surface of the interior lining of second selectively the butt in on the second upper flank or on the second downside.
3. The bicycle front derailleur according to claim 2, wherein:
the clamping assembly further comprises an adjusting bolt;
the adjusting bolt penetrates through the threaded through hole of the movable part and abuts against the second lining part or the adjusting bolt penetrates through the fixed part and abuts against the first lining part.
4. The bicycle front derailleur according to claim 3, wherein:
the first lining member is located between the upper end surface and the lower end surface of the fixed portion, and the second lining member is located between the upper end surface and the lower end surface of the movable portion.
5. The bicycle front derailleur according to claim 4, wherein:
the fixing part and the base are integrally formed.
6. The bicycle front derailleur according to claim 5, wherein:
the first inner surface of the first lining member and the second inner surface of the second lining member are located on the same circumferential surface.
7. The bicycle front derailleur according to any one of claims 1-6, wherein:
the first lining part is made of metal, plastic or ceramic, and the second lining part is made of metal, plastic or ceramic.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710193170.XA CN107054551B (en) | 2017-03-28 | 2017-03-28 | Bicycle front derailleur |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710193170.XA CN107054551B (en) | 2017-03-28 | 2017-03-28 | Bicycle front derailleur |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107054551A CN107054551A (en) | 2017-08-18 |
| CN107054551B true CN107054551B (en) | 2022-06-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710193170.XA Active CN107054551B (en) | 2017-03-28 | 2017-03-28 | Bicycle front derailleur |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107054551B (en) |
Citations (10)
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|---|---|---|---|---|
| CN1268462A (en) * | 1999-03-29 | 2000-10-04 | 株式会社岛野 | Hoop type adapter for front chain wheel of bicycle |
| CN1970385A (en) * | 2005-11-21 | 2007-05-30 | 株式会社岛野 | Front derailleur with mounting fixture |
| CN101112909A (en) * | 2006-07-25 | 2008-01-30 | 株式会社岛野 | Bicycle front derailleur |
| CN101190702A (en) * | 2005-11-28 | 2008-06-04 | 禧玛诺（新）私人有限公司 | Bicycle front derailleur with angle regulating mechanism |
| CN103043174A (en) * | 2011-10-17 | 2013-04-17 | Sram德国有限公司 | Derailleur guide device |
| CN203358802U (en) * | 2013-07-16 | 2013-12-25 | 永芳塑料有限公司 | Chain anti-drop device |
| CN203888988U (en) * | 2014-06-24 | 2014-10-22 | 广东顺德顺泰自行车配件有限公司 | Front derailleur of bicycle |
| CN104176193A (en) * | 2013-05-23 | 2014-12-03 | 株式会社岛野 | Front derailleur |
| CN205534598U (en) * | 2016-01-29 | 2016-08-31 | 广东珠江燃气集团有限公司 | But angle regulation's riser support frame |
| CN207000733U (en) * | 2017-03-28 | 2018-02-13 | 珠海蓝图控制器科技有限公司 | A kind of bicycle front derailleur |
-
2017
- 2017-03-28 CN CN201710193170.XA patent/CN107054551B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1268462A (en) * | 1999-03-29 | 2000-10-04 | 株式会社岛野 | Hoop type adapter for front chain wheel of bicycle |
| CN1970385A (en) * | 2005-11-21 | 2007-05-30 | 株式会社岛野 | Front derailleur with mounting fixture |
| CN101190702A (en) * | 2005-11-28 | 2008-06-04 | 禧玛诺（新）私人有限公司 | Bicycle front derailleur with angle regulating mechanism |
| CN101112909A (en) * | 2006-07-25 | 2008-01-30 | 株式会社岛野 | Bicycle front derailleur |
| CN103043174A (en) * | 2011-10-17 | 2013-04-17 | Sram德国有限公司 | Derailleur guide device |
| CN104176193A (en) * | 2013-05-23 | 2014-12-03 | 株式会社岛野 | Front derailleur |
| CN203358802U (en) * | 2013-07-16 | 2013-12-25 | 永芳塑料有限公司 | Chain anti-drop device |
| CN203888988U (en) * | 2014-06-24 | 2014-10-22 | 广东顺德顺泰自行车配件有限公司 | Front derailleur of bicycle |
| CN205534598U (en) * | 2016-01-29 | 2016-08-31 | 广东珠江燃气集团有限公司 | But angle regulation's riser support frame |
| CN207000733U (en) * | 2017-03-28 | 2018-02-13 | 珠海蓝图控制器科技有限公司 | A kind of bicycle front derailleur |
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| Publication number | Publication date |
|---|---|
| CN107054551A (en) | 2017-08-18 |
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Address after: 519000 building B-2, No. 8, Honghui fifth road, Shuanglin District, LIANGANG Industrial Zone, Jinwan District, Zhuhai City, Guangdong Province Patentee after: Zhuhai Blueprint Sports Technology Co.,Ltd. Address before: 519090 room 312-43, third floor, aviation new town planning exhibition hall, Jinwan District, Zhuhai City, Guangdong Province Patentee before: ZHUHAI LTWOO CONTROLLER TECHNOLOGY CO.,LTD. |