CN106364522B - Draft gear assemblies and rail vehicle with the draft gear assemblies - Google Patents
Draft gear assemblies and rail vehicle with the draft gear assemblies Download PDFInfo
- Publication number
- CN106364522B CN106364522B CN201610920536.4A CN201610920536A CN106364522B CN 106364522 B CN106364522 B CN 106364522B CN 201610920536 A CN201610920536 A CN 201610920536A CN 106364522 B CN106364522 B CN 106364522B
- Authority
- CN
- China
- Prior art keywords
- hitch
- draft gear
- gear assemblies
- mounting base
- slideway
- Prior art date
- 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.)
- Active
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61G—COUPLINGS; DRAUGHT AND BUFFING APPLIANCES
- B61G9/00—Draw-gear
- B61G9/04—Draw-gear combined with buffing appliances
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61G—COUPLINGS; DRAUGHT AND BUFFING APPLIANCES
- B61G9/00—Draw-gear
- B61G9/20—Details; Accessories
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Seats For Vehicles (AREA)
Abstract
The invention discloses a kind of draft gear assemblies and with the rail vehicle of the draft gear assemblies, which includes hitch mounting base, is fixedly arranged on the draw beam of the headstock;Hitch is installed in the hitch mounting base;Further include:There is plate body positioned at hitch mounting base both sides inclined slideway along longitudinal direction, the front end of the slideway to be higher than rear end;The element that can be slidably matched with the slideway is installed in the hitch mounting base;And it is configured to:Under original state, the hitch mounting base and the plate body are affixed, and the element is located at the front end of the slideway.The structure design of the draft gear assemblies can ensure that function is hung by the company of hitch when normal operation, hitch, which retreats, when collision occurs can neither invade draw beam top destruction top equipment in endergonic process, it can not fall on track and increase derailing risk, so as to improve the passive safety of rail vehicle collision.
Description
Technical field
The present invention relates to rail vehicle technical fields, more particularly to a kind of draft gear assemblies and with the rail of the draft gear assemblies
Road vehicle.
Background technology
With the promotion of high ferro speed, passive security is increasingly valued by people.
Train improves startability, the fairshaped sharp shuttle-type design of head generally use to reduce air drag at present;
Although this kind, which designs, reduces train resistance, speed is improved, so that the narrow space of headstock fore-end, it can only
Hitch part is held, can not arrange large-scale energy absorber again.
When two row high ferros bump against, be first subjected to impact is hitch part, although can set hitch in energy-absorbing vehicle
The mode of hook, but its energy absorption is limited, can not fully absorb the energy of train collision generation, exist and be impacted after hitch
The hidden danger of top equipment is destroyed on intrusion draw beam top during moving back, or is fallen on track and increased derailing risk.
Therefore, existing structure of couplers how is improved, to fully ensure that the Function of hitch rear end energy-absorbing module, is avoided
It is impacted in hitch fallback procedures to invade draw beam top and destroy top equipment or fall on track and increases derailing risk, be this
The current technical issues that need to address of field technology personnel.
Invention content
The object of the present invention is to provide a kind of draft gear assemblies and with the rail vehicle of the draft gear assemblies, the draft gear assemblies
Structure design can either ensure that function is hung by the company of hitch when vehicle normal operation, and can avoid the vehicle that is impacted when colliding generation
Draw beam top is invaded in hook fallback procedures and destroys top equipment or falls on track and increases derailing risk, so as to improve
The passive safety of rail vehicle collision.
In order to solve the above technical problems, the present invention provides a kind of draft gear assemblies, it is set to the headstock front end of rail vehicle, packet
It includes:
Hitch mounting base is fixedly arranged on the draw beam of the headstock;
Hitch is installed in the hitch mounting base;
Further include:
Plate body positioned at hitch mounting base both sides has inclined slideway along longitudinal direction, the front end of the slideway high
In rear end;
The element that can be slidably matched with the slideway is installed in the hitch mounting base;And it is configured to:Original state
Under, the hitch mounting base and the plate body are affixed, and the element is located at the front end of the slideway.
As above, draft gear assemblies provided by the invention, hitch mounting base and draw beam are affixed, and the two of hitch mounting base
Side is provided with the plate body with slideway, the element that can be slidably matched with the slideway is installed in hitch mounting base, wherein described
Slideway is along car body fore-and-aft tilt, and its front end is higher than rear end;In practice, cause to be installed with hitch when rail vehicle collides
Fixation between hitch mounting base and plate body is released from, at this point, the element because of hitch mounting base can be slidably matched with slideway, institute
With hitch mounting base can be slided along slideway to the car body back lower place with element, that is to say, that is limited hitch mounting base and is being hit
Running orbit after hitting, to avoid intrusion draw beam top from destroying top equipment or fall on track to increase derailing risk,
And then improve the passive safety of rail vehicle collision.It is to be herein pointed out when collision, the hitch of two vehicles is in mounting
State, so, it can be always maintained in horizontality when hitch and hitch mounting base are slided along slideway.
Optionally, the plate body is fixedly arranged on the bottom of the draw beam.
Optionally, further include limiting plate, be fixedly arranged on the draw beam;The limiting plate is located at the hitch mounting base
Top.
Optionally, the slideway is specially the slide opening for being opened in the plate body, and the element is specially axis pin.
Optionally, the slideway is specially the sliding slot for being opened in the plate body, and the element is specially pulley.
Optionally, the both ends of the hitch mounting base are affixed by fastener and the draw beam, the plate body.
Optionally, the fastener is specially rivet or bolt or split pin.
Optionally, the hitch is the hitch with endergonic structure.
The present invention also provides a kind of rail vehicle, including headstock and the draft gear assemblies set on headstock front end, the hitch groups
Part is draft gear assemblies described in any one of the above embodiments.
Since above-mentioned draft gear assemblies have above-mentioned technique effect, so the rail vehicle with the draft gear assemblies is also with phase
Discussion is not repeated herein in the technique effect answered.
Description of the drawings
Fig. 1 is a kind of structural schematic diagram of specific implementation mode of draft gear assemblies provided by the present invention;
Fig. 2 is the structural schematic diagram of another angle of draft gear assemblies shown in Fig. 1;
Fig. 3 is the vertical view of draft gear assemblies shown in Fig. 1;
Fig. 4 shows the structural schematic diagram of draft gear assemblies and headstock front end before collision;
Fig. 5 shows the structural schematic diagram of draft gear assemblies and headstock front end after collision.
Wherein, the one-to-one relationship in Fig. 1 to Fig. 5 between component names and reference numeral is as follows:
Hitch 11, hitch mounting base 12, element 121;
Draw beam 21, plate body 22, slideway 221, limiting plate 23.
Specific implementation mode
Core of the invention is to provide a kind of draft gear assemblies and the rail vehicle with the draft gear assemblies, the draft gear assemblies
Structure design can either ensure that function is hung by the company of hitch when vehicle normal operation, and can avoid the vehicle that is impacted when colliding generation
Draw beam top is invaded in hook fallback procedures and destroys top equipment or falls on track and increases derailing risk, so as to improve
The passive safety of rail vehicle collision.
In order to enable those skilled in the art to better understand the solution of the present invention, with reference to the accompanying drawings and detailed description
The present invention is described in further detail.
It please refers to Fig.1 to Fig. 3, wherein Fig. 1 is that a kind of structure of specific implementation mode of draft gear assemblies provided by the present invention is shown
It is intended to;Fig. 2 is the structural schematic diagram of another angle of draft gear assemblies shown in Fig. 1;Fig. 3 is the vertical view of draft gear assemblies shown in Fig. 1.
The headstock front end of rail vehicle is equipped with draft gear assemblies, and the rear of draft gear assemblies is equipment compartment.It should be noted that
The noun of locality " preceding " herein refers to by one end of near-car head, and accordingly, the noun of locality " rear " refers to one end far from headstock.
In the embodiment, draft gear assemblies include hitch 11 and hitch mounting base 12;Wherein, hitch 11 is installed in hitch installation
Seat 12.
In the present solution, hitch mounting base 12 is fixedly arranged on the draw beam 21 of headstock.
In the embodiment, draft gear assemblies further include the plate body 22 positioned at 12 both sides of hitch mounting base, are had on each plate body 22
There is slideway 221.
It should be pointed out that the both sides of hitch mounting base 12 referred to herein refer to two in the transverse direction of rail vehicle
Side.
Specifically, plate body 22 can be fixedly arranged on the bottom of draw beam 21.
Wherein, the slideway 221 on plate body 22 tilts along longitudinal direction, and its front end is higher than rear end, that is to say, that the slideway 221
It is obliquely installed to the car body back lower place, longitudinal direction here refers to the length direction of rail vehicle.
The both sides of hitch mounting base 12 are installed with the element that can be slidably matched with the slideway 221 of the plate body 22 of respective side
121。
Concrete configuration at:Under original state, that is, draft gear assemblies and headstock be initially after assembly, hitch mounting base 12 with it is each
Plate body 22 is affixed, and element 121 is located at the front end of slideway 221.
Need exist for, it is emphasized that element 121 and slideway 221 cooperation concrete configuration at:When hitch mounting base 12 with lead
Draw between beam 21, plate body 22 be relatively fixed status releasing after, element 121 can drive hitch mounting base 12 and hitch 11 together
It is slided along slideway 221.
As above, the hitch mounting base 12 of the draft gear assemblies and draw beam 21 are affixed, and are set in the both sides of hitch mounting base 12
It is equipped with the plate body 22 with slideway 221, the element 121 that can be slidably matched with the slideway 221 is installed in hitch mounting base 12,
Wherein, slideway 221 is along car body fore-and-aft tilt, and its front end is higher than rear end;In practice, when rail vehicle collide cause it is fixed
There is the stationary state between the hitch mounting base 12 of hitch 11 and draw beam 21 and plate body 22 to be released from, because of hitch mounting base 12
Element 121 can be slidably matched with slideway 221, so, at this time hitch mounting base 12 can with element 121 along slideway 221 to vehicle
It slides the body back lower place, that is to say, that running orbit of the hitch mounting base 12 after being impacted is limited, to avoid intrusion from drawing
Beam top, which is destroyed top equipment or fallen on track, increases derailing risk, and then improves the passive security of rail vehicle collision
Property.
It should be pointed out that when collision, the hitch 11 of two vehicles is in mounting state, so, it is installed in hitch 11 and hitch
Seat 12 can be always maintained at when being slided along slideway 221 in horizontality.
In specific scheme, draft gear assemblies further include limiting plate 23, which is fixedly arranged on draw beam 21, and is located at vehicle
The top of hook mounting base 12 is moved up with limiting hitch mounting base 12.It is appreciated that limiting plate 23 and hitch mounting base 12 are not
Contact.
Specifically, limiting plate 23 can be respectively provided in the both sides of the top of hitch mounting base 12.
Specifically, the fixed form of limiting plate 23 and draw beam 21 can there are many, such as weld, or be bolted
Deng.
In specific scheme, the slideway 221 of plate body 22 is the slide opening for being opened in plate body 22, is fixedly arranged on hitch mounting base 12
Element 121 is set as axis pin, specifically when setting, the stub end of axis pin is made to be arranged in slide opening, avoids axis pin from being detached from slide opening, while again
Axis pin can be made to be slided along sliding.
Certainly, may be other structures, such as screw with the matched element 121 of slide opening.
In specific scheme, the slideway 221 of plate body 22 can also be the sliding slot for being opened in plate body 22, be fixedly arranged on hitch installation
The element 121 of seat 12 can be set as pulley, and specifically when setting, which can successfully slide along sliding slot in sliding slot
It is dynamic.
It is appreciated that the slideway 221 of plate body 22 and the element 121 being matched therewith can be arranged as required to be different
Structure is not limited to above two, as long as element 121 can be made to drive hitch mounting base 12 and be fixedly arranged on the vehicle of hitch mounting base 12
Hook 11 is slided along slideway 221 together.
In specific scheme, the both ends of hitch mounting base 12 are affixed by fastener and draw beam 21, plate body 22;More specifically
Ground, the fastener can be rivet or the structures such as bolt or split pin, in this way, hitch mounting base 12 and draw beam 21, plate body
22 it is affixed detachable, it is convenient to overhaul.
In specific scheme, hitch 11 is set as the hitch with endergonic structure, in this way, rail vehicle is in collision, hitch
11 can absorb the energy for hitting and generating to a certain extent, further increase the passive safety of vehicle collision.
The structural schematic diagram of draft gear assemblies and headstock front end before collision is shown please also refer to Fig. 4 and Fig. 5, Fig. 4;Fig. 5
Show the structural schematic diagram of draft gear assemblies and headstock front end after colliding.
As shown in figure 4, under initial assembled state, the hitch mounting base 12 and plate body 22 of draft gear assemblies are solid by fastener
It connects, at this point, the element 121 for being fixedly arranged on hitch mounting base 12 is located at the front end of the slideway 221 of plate body 22.
After two rail vehicles collide, first, the hitch 11 of two vehicles is even hung, and since hitch 11 is energy-absorbing hitch, is had
Endergonic structure start to complete initial energy-absorbing;When collision energy is larger, only by hitch 11, the endergonic structure of itself cannot be inhaled completely
When receiving the energy that collision generates, the fastener between hitch mounting base 12 and draw beam 21, plate body 22 starts stress and absorbs energy,
Reach certain value when colliding the energy generated, fastener can be cut, secondary energy-absorbing is completed by cutting fastener, at this point, vehicle
Fixed constraint between hook mounting base 12 and draw beam 21, plate body 22 is released from, due to being fixedly arranged on the element of hitch mounting base 12
121 can be slidably matched with the slideway 221 of plate body 22, so, element 121 can drive 11 edge of hitch mounting base 12 and hitch at this time
It slideway 221 to slide to the car body back lower place, completes sliding energy-absorbing, simultaneously because slideway 221 defines hitch 11 and hitch installation
The movement locus of seat 12 can avoid intrusion draw beam top from destroying top equipment or fall on track in sliding process;
As shown in figure 5, after it is collision, the structural representation of hitch 11 and hitch mounting base 12 after the sliding of slideway 221.
It should be pointed out that since two vehicle hitches 11 are even hung, so, in sliding process, hitch 11 can be always maintained at water
Level state.
It may also be noted that after collision, after hitch 11 and hitch mounting base 12 are in state shown in Fig. 5, impact energy
In the state that amount does not fully absorb yet, hitch 11 will position shown in Fig. 5 continue to retreat, and hitch 11 has avoided at this time
Equipment compartment, so continuing to retreat the damage that will not be caused to equipment below deck equipment.
Therefore energy-absorbing sequence of the rail vehicle of the draft gear assemblies in collision is installed and is:Itself energy-absorbing of hitch 11
Fastener → 221 → car body of slideway between → hitch mounting base 12 and draw beam 21, plate body 22.
There is also the need to, it is emphasized that fastener between hitch mounting base 12 and draw beam 21, plate body 22 arrangement and
Quantity determines according to actual requirement after check, and hitch 11 should be made even to hang, impact of collision and small touch meeting normal hitch
It hits under operating mode, fastener will not be cut.
Other than aforementioned draft gear assemblies, the present invention also provides a kind of rail vehicle, including headstock and set on headstock front end
Draft gear assemblies, wherein the draft gear assemblies that draft gear assemblies are introduced by the above embodiment.
Since above-mentioned draft gear assemblies have above-mentioned technique effect, so the rail vehicle with the draft gear assemblies is also with phase
Discussion is not repeated herein in the technique effect answered.
It should be noted where the not this Applicant's Abstract graph core point of the main part of the rail vehicle, and may be used existing
Technology is realized, therefore repeats no more herein.
The rail vehicle to draft gear assemblies provided by the present invention and with the draft gear assemblies has carried out detailed Jie above
It continues.Principle and implementation of the present invention are described for specific case used herein, and the explanation of above example is only
It is the method and its core concept for being used to help understand the present invention.It should be pointed out that for those skilled in the art
For, it without departing from the principle of the present invention, can be with several improvements and modifications are made to the present invention, these improve and repair
Decorations are also fallen within the protection scope of the claims of the present invention.
Claims (9)
1. draft gear assemblies are set to the headstock front end of rail vehicle, including:
Hitch mounting base (12) is fixedly arranged on the draw beam (21) of the headstock;
Hitch (11) is installed in the hitch mounting base (12);
It is characterized in that, further including:
Plate body (22) positioned at hitch mounting base (12) both sides has inclined slideway (221) along longitudinal direction, the slideway
(221) front end is higher than rear end;
The element (121) that can be slidably matched with the slideway (221) is installed on the hitch mounting base (12);And it configures
At:Under original state, the hitch mounting base (12) and the plate body (22) are affixed, and the element (121) is located at the slideway
(221) front end.
2. draft gear assemblies according to claim 1, which is characterized in that the plate body (22) is fixedly arranged on the draw beam (21)
Bottom.
3. draft gear assemblies according to claim 1, which is characterized in that further include limiting plate (23), be fixedly arranged on described lead
Draw beam (21);The limiting plate (23) is located at the top of the hitch mounting base (12).
4. draft gear assemblies according to claim 1, which is characterized in that the slideway (221) is specially to be opened in the plate
The slide opening of body (22), the element (121) is specially axis pin.
5. draft gear assemblies according to claim 1, which is characterized in that the slideway (221) is specially to be opened in the plate
The sliding slot of body (22), the element (121) is specially pulley.
6. according to claim 1-5 any one of them draft gear assemblies, which is characterized in that the both ends of the hitch mounting base (12)
It is affixed by fastener and the draw beam (21), the plate body (22).
7. draft gear assemblies according to claim 6, which is characterized in that the fastener is specially rivet or bolt or opening
Pin.
8. according to claim 1-5 any one of them draft gear assemblies, which is characterized in that the hitch (11) is with energy-absorbing knot
The hitch of structure.
9. rail vehicle, including headstock and the draft gear assemblies set on headstock front end, which is characterized in that the draft gear assemblies are right
It is required that 1-8 any one of them draft gear assemblies.
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201610920536.4A CN106364522B (en) | 2016-10-21 | 2016-10-21 | Draft gear assemblies and rail vehicle with the draft gear assemblies |
GB1819819.2A GB2565504B (en) | 2016-10-21 | 2017-09-29 | Coupling assembly and rail vehicle having same |
AU2017347558A AU2017347558B2 (en) | 2016-10-21 | 2017-09-29 | Coupling assembly and rail vehicle having same |
PCT/CN2017/104174 WO2018072611A1 (en) | 2016-10-21 | 2017-09-29 | Coupling assembly and rail vehicle having same |
US16/310,446 US10518789B2 (en) | 2016-10-21 | 2017-09-29 | Coupling assembly and rail vehicle having same |
RU2018146178A RU2711779C1 (en) | 2016-10-21 | 2017-09-29 | Hitch assembly and railway vehicle, including such hitch assembly |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201610920536.4A CN106364522B (en) | 2016-10-21 | 2016-10-21 | Draft gear assemblies and rail vehicle with the draft gear assemblies |
Publications (2)
Publication Number | Publication Date |
---|---|
CN106364522A CN106364522A (en) | 2017-02-01 |
CN106364522B true CN106364522B (en) | 2018-08-24 |
Family
ID=57895384
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201610920536.4A Active CN106364522B (en) | 2016-10-21 | 2016-10-21 | Draft gear assemblies and rail vehicle with the draft gear assemblies |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN106364522B (en) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10518789B2 (en) | 2016-10-21 | 2019-12-31 | Crrc Qingdao Sifang Co., Ltd. | Coupling assembly and rail vehicle having same |
CN107804337B (en) * | 2017-11-28 | 2024-04-05 | 长沙开元仪器有限公司 | Rail vehicle and connecting device thereof |
CN109094603A (en) * | 2018-08-30 | 2018-12-28 | 中车株洲电力机车有限公司 | Rail vehicle and its coupler pocket |
US11780477B2 (en) | 2018-08-30 | 2023-10-10 | Crrc Zhuzhou Locomotive Co., Ltd. | Rail vehicle and coupling box thereof |
CN109178025B (en) * | 2018-09-03 | 2024-07-05 | 重庆中车长客轨道车辆有限公司 | Rail vehicle and coupler assembly and transition traction device thereof |
CN110304097B (en) * | 2019-07-25 | 2020-05-05 | 中车青岛四方车辆研究所有限公司 | Buffer device, coupler and buffer device and rail train |
CN114852122B (en) * | 2022-04-29 | 2023-06-13 | 中车株洲电力机车有限公司 | Vehicle end structure for tight-lock coupler and end traction and railway vehicle |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4445617A (en) * | 1981-09-16 | 1984-05-01 | Mcconway & Torley Corporation | Striker for a railway coupler |
US8376160B2 (en) * | 2011-04-25 | 2013-02-19 | Charles T. Bomgardner | Key retainer for railway car coupler |
CN103332204A (en) * | 2013-06-27 | 2013-10-02 | 南车四方车辆有限公司 | Car coupler for rail returning vehicle and rail returning vehicle |
CN103625502B (en) * | 2013-10-18 | 2016-05-25 | 中车青岛四方机车车辆股份有限公司 | A kind of rail vehicle front end energy absorption device |
US10086852B2 (en) * | 2014-03-10 | 2018-10-02 | Canadian National Railway Company | End-of car energy management system for railcars |
CN105083317B (en) * | 2015-07-24 | 2018-06-12 | 中车青岛四方机车车辆股份有限公司 | A kind of draft gear assemblies and the rail vehicle with the draft gear assemblies |
-
2016
- 2016-10-21 CN CN201610920536.4A patent/CN106364522B/en active Active
Also Published As
Publication number | Publication date |
---|---|
CN106364522A (en) | 2017-02-01 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN106364522B (en) | Draft gear assemblies and rail vehicle with the draft gear assemblies | |
CN105599781B (en) | A kind of rail traffic vehicles honeycomb fashion troubleshooting energy absorption device | |
CN106379368B (en) | Draft gear assemblies and the rail vehicle with the draft gear assemblies | |
CN105083317B (en) | A kind of draft gear assemblies and the rail vehicle with the draft gear assemblies | |
SE514218C2 (en) | Device for hinges for bonnets on passenger cars | |
CN204249970U (en) | A kind of multistage energy-absorption type front anticollision beam of automobile | |
CN102211558A (en) | Automobile collision energy dissipation protection device | |
CN106740918A (en) | A kind of rail vehicle headstock anti-collision structure and headstock | |
CN204845821U (en) | Crashproof roof beam before car | |
CN106494451B (en) | Draft gear assemblies and rail vehicle with the draft gear assemblies | |
CN205524285U (en) | Track is honeycomb formula row barrier energy -absorbing device for transportation vehicles | |
GB2565504B (en) | Coupling assembly and rail vehicle having same | |
WO2017054567A1 (en) | Energy absorption device and rail vehicle having same | |
CN205905859U (en) | Car headlamp mounting structure with routed function that contracts | |
CN209683623U (en) | Automobile front anti-collision energy absorption device | |
CN204845812U (en) | Energy -absorbing buffer type bumper | |
CN206968591U (en) | A kind of automobile using collision prevention device | |
CN207466569U (en) | A kind of automobile buffer beam | |
CN105873808B (en) | Motorcar body with deformation element and longeron | |
CN204845813U (en) | Annular energy -absorbing bumper | |
CN204222791U (en) | A kind of automobile front beam | |
CN207345738U (en) | A kind of truck front lower portion safeguard structure | |
CN208559258U (en) | A kind of automobile head anticollision device, collision-prevention device | |
CN207902355U (en) | A kind of elastic force car insurance bar | |
CN204399061U (en) | Automobile impacting protection system |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
GR01 | Patent grant | ||
GR01 | Patent grant |