CN108245795B - Centrifugal braking descent control device - Google Patents
Centrifugal braking descent control device Download PDFInfo
- Publication number
- CN108245795B CN108245795B CN201711451560.9A CN201711451560A CN108245795B CN 108245795 B CN108245795 B CN 108245795B CN 201711451560 A CN201711451560 A CN 201711451560A CN 108245795 B CN108245795 B CN 108245795B
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- reel
- braking
- centrifugal
- locking
- central shaft
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 16
- 239000010959 steel Substances 0.000 claims abstract description 16
- 238000000034 method Methods 0.000 abstract description 10
- 230000000694 effects Effects 0.000 abstract description 7
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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Classifications
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B1/00—Devices for lowering persons from buildings or the like
- A62B1/06—Devices for lowering persons from buildings or the like by making use of rope-lowering devices
- A62B1/08—Devices for lowering persons from buildings or the like by making use of rope-lowering devices with brake mechanisms for the winches or pulleys
- A62B1/10—Devices for lowering persons from buildings or the like by making use of rope-lowering devices with brake mechanisms for the winches or pulleys mechanically operated
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B1/00—Devices for lowering persons from buildings or the like
- A62B1/06—Devices for lowering persons from buildings or the like by making use of rope-lowering devices
- A62B1/18—Other single parts for rope lowering-devices, e.g. take-up rollers for ropes, devices for shooting ropes
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- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Emergency Lowering Means (AREA)
- Braking Arrangements (AREA)
Abstract
The invention discloses a centrifugal braking descent control device which comprises a main shell, a reel and a steel cable, wherein the main shell comprises two side end plates and a plurality of framework rods, the framework rods are positioned between the two side end plates, one end of each framework rod is connected with one side end plate, and the other end of each framework rod is connected with the other side end plate; the reel is arranged between the two side end plates, a central hole is formed in the reel, a centrifugal braking structure is arranged in the central hole and comprises a centrifugal wheel body and a central shaft linked with the reel, a plurality of braking structures are arranged on the centrifugal wheel body and comprise a base and a braking seat, the braking seat is connected with the base in a sliding mode, and a friction plate is arranged on the braking seat; the main shell is provided with a connecting hook. The invention has the beneficial effects that: it is rational in infrastructure, can effectively assist the personnel of fleing to carry out the high altitude descending, possess and slowly fall the effect, and slowly fall the process and possess the regulation ability of meeting an emergency, whole stability of the in-process of fleing is better, can ensure personnel's safety of fleing.
Description
Technical Field
The invention belongs to the technical field of high-rise escape devices, and particularly relates to a centrifugal braking descent control device.
Background
With the development of technology and the progress of life, high-rise escape equipment and high-rise escape devices are widely used. The high-rise escape device belongs to a self-rescue device, and can effectively help a trapped person (an escape person) in a high-rise to rapidly escape when a high-rise building such as a building breaks out of a fire and other accidents. The high-rise escape device in the prior art has more types, but the existing high-rise escape device still has shortcomings in the aspects of automatic adjustment of landing speed, stability in the landing process, safety in the whole process and the like.
Disclosure of Invention
The centrifugal braking descent control device is reasonable in structure, can effectively assist the escape personnel to descend from high altitude, has a descent control effect, has strain adjustment capacity in the descent control process, is good in stability in the whole escape process, and can guarantee the safety of the escape personnel.
In order to achieve the purpose, the invention adopts the following technical scheme:
a centrifugal braking descent control device comprises
The reel comprises a main shell, a reel and a steel cable wound on the reel, wherein the main shell comprises two side end plates and a plurality of framework rods, the framework rods are positioned between the two side end plates, one end of each framework rod is connected with one side end plate, and the other end of each framework rod is connected with the other side end plate;
the reel is arranged between the two side end plates, a central hole is formed in the reel, a centrifugal braking structure is arranged in the central hole and comprises a centrifugal wheel body and a central shaft linked with the reel, the centrifugal wheel body is coaxially connected with the central shaft, a plurality of braking structures are arranged on the centrifugal wheel body, each braking structure comprises a base and a braking seat, each braking seat is connected with the base in a sliding mode, and a friction plate used for contacting the wall of the central hole is arranged on each braking seat;
the main shell is provided with a connecting hook, one end of the steel cable is a fixed end, the other end of the steel cable is a free end used for connecting the safety bandage, and the fixed end is fixed with the reel.
Preferably, the central shaft is linked with the reel through a gear mechanism, the sun gear is coaxially connected with the central shaft, the gear mechanism comprises an inner gear ring, a sun gear and three planet gears, the inner gear ring is arranged in the central hole and connected with the reel, the sun gear is coaxially arranged with the reel, the planet gears are meshed with the sun gear, the planet gears are meshed with the inner gear ring, gear shafts rotatably connected with the main shell are arranged on the planet gears, and the sun gear is rotatably connected with the reel through the central shaft.
Preferably, one end of the central shaft is provided with a first bearing, the other end of the central shaft is provided with a second bearing, a first bearing inner ring is connected with the central shaft, a first bearing outer ring is fixed with a first fixing groove formed in the main shell, the first bearing inner ring is connected with the central shaft, and a second bearing outer ring is fixed with a second fixing groove formed in the main shell.
Preferably, a limit baffle is arranged on the central shaft, the limit baffle contacts with one end face of the centrifugal wheel body, and the centrifugal wheel body is axially arranged on the central shaft: the limit baffle is positioned between the centrifugal wheel body and the gear mechanism.
Preferably, the braking structure further comprises at least one pre-limiting spring and at least one pin, and in one braking structure: the brake seat is connected with the base in a sliding mode through the pin, the pin is fixed relative to the base, the brake seat is connected with the pin in a sliding mode, one end of the pre-limiting spring is fixed relative to the base, and the other end of the pre-limiting spring is fixed relative to the brake seat.
Preferably, each framework rod is uniformly distributed along the circumferential direction of the reel, one end of each framework rod is connected with one side end plate through a screw, and the other end of each framework rod is connected with the other side end plate through a screw.
Preferably, an adjusting mechanism is arranged in the central hole, the adjusting mechanism comprises an outer disc, an adjusting disc, a positioning spring and a fixing flange, the adjusting disc is in running fit with the fixing flange, the central shaft penetrates through the fixing flange, the fixing flange is connected with the central shaft, the positioning spring is located between the fixing flange and the adjusting disc, the positioning spring compresses the fixing flange, the fixing flange is connected with the outer disc, a plurality of locking bodies distributed along the circumferential direction of the adjusting disc are arranged on the adjusting disc, a locking through groove for allowing the locking bodies to enter is formed in the brake seat, and at least one operating hole is formed in the main shell.
Preferably, the number of the brake bases is 6, the number of the locking bodies is 4, and the number of the locking bodies entering each locking through groove is 0 to 1.
Preferably, the outer disc is provided with a clamping body, and the adjusting disc is provided with a first clamping groove into which the clamping body can be clamped, a second clamping groove into which the clamping body can be clamped, and a third clamping groove into which the clamping body can be clamped; when the clamping body is positioned in the first clamping groove, 4 locking through grooves are provided with locking bodies; when the clamping body is positioned in the second clamping groove, 2 locking through grooves are provided with locking bodies; when the card body is in the third draw-in groove, have the locking body in 0 total locking logical groove.
Preferably, the main shell is provided with a release frame, the release frame is provided with a release hole, the free end passes through the release hole, the release frame is provided with a guide pulley, and the steel cable passes around the guide pulley.
The invention has the beneficial effects that: it is rational in infrastructure, can effectively assist the personnel of fleing to carry out the high altitude descending, possess and slowly fall the effect, and slowly fall the process and possess the regulation ability of meeting an emergency, whole stability of the in-process of fleing is better, can ensure personnel's safety of fleing.
Drawings
FIG. 1 is an exploded view of the present invention;
FIG. 2 is a schematic structural view of the present invention;
FIG. 3 is a schematic view of a partial structure of the present invention;
FIG. 4 is a schematic view of the present invention at the release stage;
FIG. 5 is a schematic view of the structure of the centrifugal wheel body of the present invention;
FIG. 6 is a schematic view of the structure at the adjusting disk of the present invention;
fig. 7 is an exploded view of the dial of the present invention.
In the figure: the device comprises a main shell 1, a side end plate 11, a framework rod 12, a connecting hook 13, a release frame 14, a guide pulley 15, a reel 2, a steel cable 3, a centrifugal wheel body 41, a base 42, a brake seat 43, a locking through groove 43a, a friction plate 431, a central shaft 44, a pre-limiting spring 45, a pin 46, an inner gear ring 51, a sun gear 52, a planetary gear 53, a gear shaft 531, a first bearing 54, a second bearing 55, a limiting baffle 56, an outer disc 61, an adjusting disc 62, a locking body 621, a positioning spring 63, a fixing flange 64 and an operation hole 7.
Detailed Description
The invention is further described with reference to the following figures and detailed description.
In the embodiment shown in fig. 1 to 7, a centrifugal brake descent control device comprises
The steel wire rope winding device comprises a main shell 1, a reel 2 and a steel wire rope 3 wound on the reel, wherein the main shell comprises two side end plates 11 and a plurality of framework rods 12, the framework rods are positioned between the two side end plates, one end of each framework rod is connected with one side end plate, and the other end of each framework rod is connected with the other side end plate;
the reel is arranged between the two side end plates, a central hole is formed in the reel, a centrifugal braking structure is arranged in the central hole and comprises a centrifugal wheel body 41 and a central shaft 44 linked with the reel, the centrifugal wheel body is coaxially connected with the central shaft, a plurality of braking structures are arranged on the centrifugal wheel body, each braking structure comprises a base 42 and a braking seat 43, each braking seat is connected with the base in a sliding mode, and a friction plate 431 used for contacting the wall of the central hole is arranged on each braking seat;
the main shell body is provided with a connecting hook 13, one end of the steel cable is a fixed end, the other end of the steel cable is a free end used for connecting the safety bandage, and the fixed end is fixed with the reel.
The central shaft is linked with the reel through a gear mechanism, the sun gear is coaxially connected with the central shaft, the gear mechanism comprises an inner gear ring 51, a sun gear 52 and three planet gears 53, the inner gear ring is arranged in the central hole and is connected with the reel, the sun gear is coaxially arranged with the reel, the planet gears are meshed with the sun gear, the planet gears are meshed with the inner gear ring, and gear shafts 531 which are rotatably connected with the main shell are arranged on the planet gears.
One end of the central shaft is provided with a first bearing 54, the other end of the central shaft is provided with a second bearing 55, a first bearing inner ring is connected with the central shaft, a first bearing outer ring is fixed with a first fixing groove arranged on the main shell body, the first bearing inner ring is connected with the central shaft, and a second bearing outer ring is fixed with a second fixing groove arranged on the main shell body.
Be equipped with limit baffle 56 on the center pin, limit baffle contacts an end face of centrifugal wheel body, in the center pin axial: the limit baffle is positioned between the centrifugal wheel body and the gear mechanism.
The braking structure also comprises at least one pin 46, on which a pre-limiting spring 45 is sleeved, and in the braking structure: the brake seat is in sliding connection with the base through the pin, the pin is fixed relative to the base, the brake seat is in sliding connection with the pin, one end of the pre-limiting spring is in contact with the base, and the other end of the pre-limiting spring is in contact with the brake seat. The pre-limiting spring can play a pre-tightening role, so that the friction plate is ensured to be in contact with the hole wall of the central hole, and the friction effect is improved. If no pre-limiting spring is provided, the friction contact between the friction plate and the hole wall of the central hole can be realized only by the centrifugal force and the gravity of the brake seat, which results in smaller friction coefficient and poorer friction speed reduction effect.
Each framework rod is evenly distributed along the circumferential direction of the reel, one end of each framework rod is connected with one side end plate through a screw, and the other end of each framework rod is connected with the other side end plate through a screw.
In the invention, the free end is connected with the safety bandage (or other structures for fixing human body), and the connecting hook is hung on a fixing hook of a wall body or fixed with a building (wall body) through other structures. When the invention is used, the escape personnel and the safety bandage are fixed and then start to land in high altitude. In the descending process, the free end continuously moves downwards, the steel cable is continuously released, and the reel continuously rotates. When the reel rotates, the gear mechanism drives the central shaft to rotate, and the central shaft drives the centrifugal wheel body to rotate. When the centrifugal wheel body rotates, the brake seat can slide towards the direction far away from the centrifugal wheel body under the action of centrifugal force, so that the friction plate can further press the hole wall of the central hole, the friction is increased, and the centrifugal wheel body can be decelerated.
In the escape descending process, once the rotating speed of the centrifugal wheel body is increased (the descending speed is increased), the friction plate can further press the wall of the central hole, and the descending effect is achieved; once the centrifugal wheel body is decelerated, the pressure between the friction plate and the hole wall of the central hole is reduced, and the centrifugal wheel body rotates at a higher speed again to circulate until the escape personnel falls to the ground.
Be equipped with adjustment mechanism in the centre bore, adjustment mechanism includes outer dish 61, adjusting disk 62, positioning spring 63 and mounting flange 64, adjusting disk and mounting flange normal running fit, the center pin passes mounting flange, mounting flange and central axis are connected, positioning spring is in between mounting flange and the adjusting disk, positioning spring compresses tightly mounting flange, mounting flange is connected with the outer dish, be equipped with a plurality of locking bodies 621 along adjusting disk circumference distribution on the adjusting disk, be equipped with the locking logical groove 43a that is used for letting the locking body get into on the brake seat, be equipped with at least one handle aperture 7 on the main casing body. The number of the brake bases is 6, the number of the locking bodies is 4, and the number of the locking bodies entering each locking through groove is 0-1. At most 4 brake shoes can be locked simultaneously. The positioning spring is a wave spring.
The outer disc is provided with a clamping body, and the adjusting disc is provided with a first clamping groove in which the clamping body can be clamped, a second clamping groove in which the clamping body can be clamped and a third clamping groove in which the clamping body can be clamped; when the clamping body is positioned in the first clamping groove, 4 locking through grooves are provided with locking bodies; when the clamping body is positioned in the second clamping groove, 2 locking through grooves are provided with locking bodies; when the card body is in the third draw-in groove, have the locking body in 0 total locking logical groove.
The main shell is provided with a release frame 14, the release frame is provided with a release hole, the free end passes through the release hole, the release frame is provided with a guide pulley 15, and the steel cable bypasses the guide pulley. The guide pulley can ensure that the steel cable is not scraped with structures such as the release frame, rapid abrasion is avoided, and the release hole can effectively guide.
The adjusting mechanism can adjust the number of the locking bodies participating in work. The brake seat which can slide relative to the centrifugal wheel body under the action of centrifugal force is called a free brake seat, and the brake seat which can not slide relative to the centrifugal wheel body is called a locked brake seat. During adjustment, tools or hands pass through the operation holes and fix the outer disc (any applicable tool can be used as long as the outer disc can be tightly pressed and fixed), then the adjusting disc is shifted through the operation holes by using other tools or hands (the adjusting disc can be shifted and any applicable tool can be used as long as the adjusting disc can be shifted), so that the adjusting disc rotates (before the adjusting disc is shifted, the adjusting disc is pressed inwards to separate the card body from the clamping groove on the adjusting disc, so that the adjusting disc can be rotated more easily, otherwise, the adjusting disc needs to be rotated by force to enable the card body to leave the current clamping groove, namely, the card body is forced to deform to leave the current clamping groove, and after the adjusting disc is rotated in place, the adjusting disc is released, the card body enters the current aligned clamping groove to realize positioning), so that each locking body can enter or leave the locking through groove. Once the locking body enters the locking through groove, the brake seat corresponding to the locking through groove is a locked brake seat, and if the locking body does not exist in the locking through groove, the brake seat corresponding to the locking through groove is a free brake seat. The outer disc may be provided with markings to assist the user in quickly determining the number of brake shoes involved in braking. The free brake seat can slide towards the direction far away from the centrifugal wheel body under the action of centrifugal force, and when the brake seat slides, the friction plate can further press the hole wall of the central hole, so that the brake seat plays a role of reducing the speed of the centrifugal wheel body (can participate in braking); on the contrary, the locked brake seat does not participate in braking. When the falling speed during escape needs to be increased, the number of the brake seats participating in braking can be reduced (namely, the number of the locking bodies in each locking through groove is increased by rotating the adjusting disc); when the deceleration effect needs to be improved, the number of the brake bases participating in braking can be increased (namely, the number of the locking bodies in each locking through groove is reduced by rotating the adjusting disc). In addition, the specific number and size of the operation holes can be set according to actual conditions, and only a guarantee tool or a hand can pass through the operation holes to adjust the joint mechanism.
Claims (8)
1. A centrifugal braking descent control device is characterized by comprising
The reel comprises a main shell, a reel and a steel cable wound on the reel, wherein the main shell comprises two side end plates and a plurality of framework rods, the framework rods are positioned between the two side end plates, one end of each framework rod is connected with one side end plate, and the other end of each framework rod is connected with the other side end plate;
the reel is arranged between the two side end plates, a central hole is formed in the reel, a centrifugal braking structure is arranged in the central hole and comprises a centrifugal wheel body and a central shaft linked with the reel, the centrifugal wheel body is coaxially connected with the central shaft, a plurality of braking structures are arranged on the centrifugal wheel body, each braking structure comprises a base and a braking seat, each braking seat is connected with the base in a sliding mode, and a friction plate used for contacting the wall of the central hole is arranged on each braking seat;
the main shell is provided with a connecting hook, one end of the steel cable is a fixed end, the other end of the steel cable is a free end used for connecting the safety bandage, and the fixed end is fixed with the reel;
each framework rod is uniformly distributed along the circumferential direction of the reel, one end of each framework rod is connected with one side end plate through a screw, and the other end of each framework rod is connected with the other side end plate through a screw;
be equipped with adjustment mechanism in the centre bore, adjustment mechanism includes the outer dish, the adjusting disk, positioning spring and mounting flange, adjusting disk and mounting flange normal running fit, the center pin passes mounting flange, mounting flange and central axis are connected, positioning spring is in between mounting flange and the adjusting disk, positioning spring compresses tightly mounting flange, mounting flange is connected with the outer dish, be equipped with a plurality of locking bodies along adjusting disk circumference distribution on the adjusting disk, be equipped with the locking logical groove that is used for letting the locking body get into on the braking seat, be equipped with at least one handle hole on the main casing body.
2. A centrifugal brake descent control device as defined in claim 1, wherein the central shaft is operatively connected to the reel through a gear mechanism, the sun gear being coaxially connected to the central shaft, the gear mechanism comprising an inner gear ring, a sun gear and three planet gears, the inner gear ring being disposed in the central bore and the inner gear ring being connected to the reel, the sun gear being coaxially disposed with the reel, the planet gears being in engagement with the sun gear, the planet gears being in engagement with the inner gear ring, the planet gears being provided with gear shafts rotatably connected to the main housing, the sun gear being rotatably connected to the reel through the central shaft.
3. A centrifugal brake descent control device as claimed in claim 2, wherein the central shaft is provided with a first bearing at one end and a second bearing at the other end, the first bearing inner race being connected to the central shaft, the first bearing outer race being secured to a first retaining groove provided in the main housing, the second bearing outer race being secured to a second retaining groove provided in the main housing.
4. A centrifugal brake descent control device as claimed in claim 2, wherein the central shaft is provided with a limit baffle, the limit baffle contacts an end face of the centrifugal wheel body, and in the axial direction of the central shaft: the limit baffle is positioned between the centrifugal wheel body and the gear mechanism.
5. A centrifugal brake descent control device as defined in claim 1, further comprising at least one pin on which the pre-limiting spring is mounted, in a braking configuration: the brake seat is in sliding connection with the base through the pin, the pin is fixed relative to the base, the brake seat is in sliding connection with the pin, one end of the pre-limiting spring is in contact with the base, and the other end of the pre-limiting spring is in contact with the brake seat.
6. A centrifugal brake descent control device as defined in claim 1, wherein the number of the brake shoes is 6, the number of the locking bodies is 4, and the number of the locking bodies entering each locking through groove is 0 to 1.
7. The centrifugal braking descent control device as claimed in claim 1, wherein the outer disc is provided with a clamping body, and the adjusting disc is provided with a first clamping groove into which the clamping body can be clamped, a second clamping groove into which the clamping body can be clamped, and a third clamping groove into which the clamping body can be clamped; when the clamping body is positioned in the first clamping groove, 4 locking through grooves are provided with locking bodies; when the clamping body is positioned in the second clamping groove, 2 locking through grooves are provided with locking bodies; when the card body is in the third draw-in groove, have the locking body in 0 total locking logical groove.
8. A centrifugal brake descent control device as claimed in claim 1, wherein the main housing is provided with a release bracket, the release bracket is provided with a release aperture, the free end passes through the release aperture, the release bracket is provided with a guide pulley, and the cable passes around the guide pulley.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711451560.9A CN108245795B (en) | 2017-12-27 | 2017-12-27 | Centrifugal braking descent control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711451560.9A CN108245795B (en) | 2017-12-27 | 2017-12-27 | Centrifugal braking descent control device |
Publications (2)
| Publication Number | Publication Date |
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| CN108245795A CN108245795A (en) | 2018-07-06 |
| CN108245795B true CN108245795B (en) | 2020-06-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711451560.9A Expired - Fee Related CN108245795B (en) | 2017-12-27 | 2017-12-27 | Centrifugal braking descent control device |
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| CN (1) | CN108245795B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109125966A (en) * | 2018-09-26 | 2019-01-04 | 辽宁安民科技产业集团股份有限公司 | A kind of slow drop equipment with double-brake system |
| CN109794000A (en) * | 2019-01-09 | 2019-05-24 | 张爱晖 | A kind of automatic slow descending mechanism |
| CN110368609A (en) * | 2019-06-26 | 2019-10-25 | 张爱晖 | A kind of more people's safe escape devices |
| CN113893471B (en) * | 2021-11-08 | 2022-11-25 | 嘉兴学院 | High-rise emergency slow-falling escapement mechanism and slow-falling device thereof |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2321691B (en) * | 1997-01-29 | 2001-04-11 | Wen Tsai Tseng | Fire escape device |
| CN200943685Y (en) * | 2006-08-11 | 2007-09-05 | 苏州广宁五金工具有限公司 | Centrifugal speed restrictor |
| KR101376047B1 (en) * | 2012-05-10 | 2014-03-18 | 주식회사 코브 인터내셔날 | Brake assembly for a self-retracting lifeline |
| CN106031812A (en) * | 2015-03-09 | 2016-10-19 | 曾文财 | A slow descent machine |
| CN205460533U (en) * | 2016-01-28 | 2016-08-17 | 珠海市华亿盛精密部件有限公司 | High -rise escape slow descent device |
| CN208065584U (en) * | 2017-12-27 | 2018-11-09 | 宁波特能机电有限公司 | Centrifugal brake descending lifeline |
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2017
- 2017-12-27 CN CN201711451560.9A patent/CN108245795B/en not_active Expired - Fee Related
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| CN108245795A (en) | 2018-07-06 |
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Effective date of registration: 20181106 Address after: 315318 Xi Zhu, Qin Yan village, Henghe Town, Cixi, Zhejiang Applicant after: Zhang Aihui Address before: 315455 39 Yu Fang Road, Fang Qiao Industrial Park, Yangming street, Yuyao, Ningbo, Zhejiang Applicant before: NINGBO SPECAR MANUFACTURING CO.,LTD. |
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