CN209250886U - Bullet wave with local elasticity's support construction - Google Patents

Bullet wave with local elasticity's support construction Download PDF

Info

Publication number
CN209250886U
CN209250886U CN201920115781.7U CN201920115781U CN209250886U CN 209250886 U CN209250886 U CN 209250886U CN 201920115781 U CN201920115781 U CN 201920115781U CN 209250886 U CN209250886 U CN 209250886U
Authority
CN
China
Prior art keywords
block
support portion
flexible support
ontology
local elasticity
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
Application number
CN201920115781.7U
Other languages
Chinese (zh)
Inventor
大原博
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CN201920115781.7U priority Critical patent/CN209250886U/en
Application granted granted Critical
Publication of CN209250886U publication Critical patent/CN209250886U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Landscapes

  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)

Abstract

A kind of bullet wave with local elasticity's support construction, it includes have: an ontology, with a perforation, the ontology is sequentially provided with one first block, one second block and a third block for annular from the perforation towards a radially outer direction, first block is an inner peripheral portion, second block is an one wave part, and the third block is a peripheral part;One resin layer is laid in first block, second block and the third block of the ontology, and using makes the ontology keep scheduled hardness and make one wave part fixation wave-shaped;An at least flexible support portion, is set to the second block of the ontology, and covers the resin layer;And an at least ventilation area, second block are not provided with the flexible support portion and expose the region of the resin layer;Wherein, which becomes local elasticity and air-locked setting by the flexible support portion.Whereby, the bullet wave that the utility model is formed has more excellent fatigue durability.

Description

Bullet wave with local elasticity's support construction
Technical field
The utility model is related with a kind of bullet wave structure of loudspeaker, particularly relates to a kind of with local elasticity's support construction Bullet wave.
Background technique
There are many be using cloth material winner, master for the non-metal workpiece substrate that general loudspeaker or inside loudspeakers are included It wants reason to be that the cloth material by specially treated has elasticity and intensity appropriate, is wanted when loudspeaker or loudspeaker actuation can be provided The requirement of function, such as rouse the vibrating reeds such as paper, bullet wave, connection sheet and belong to it.Wherein, and to play wave (Damper) it is loudspeaker or raises One of most important component in sound device structure, playing wave is the elastic bearing between outer framework and voice coil, main function It is to provide restoring force required when voice coil vibrations, and displacement in the horizontal direction for voice coil is given when vibrating reed is in vibration It restrains, keeps the vibration processes of voice coil more stable.Therefore, wave is played in addition to providing loudspeaker or the preferable output power of loudspeaker and sound Frequency characteristic and loudspeaker or loudspeaker producer are when manufacturing loudspeaker or loudspeaker, the basis of quality management.
The manufacturing method of prior art bullet wave, it includes have impregnation step, baking procedure, heat-press step and cutting step. Wherein, cloth is impregnated among resin by impregnation step, so that cloth is absorbed resin, and form a resin in the fibrous external of cloth Layer, to make cloth that there is certain hardness.Baking procedure dries the cloth for absorbing resin, to remove the moisture in cloth. Heat-press step heats the cloth for absorbing resin, and it is wavy to form class in section in imprint mode.It is logical that cutting step forms center Hole is cut into multiple bullet waves, and extra cloth is removed.
Also, bullet wave made by the above-mentioned technology commonly used, there are following missings for structure: first, playing the hard of wave entirety Degree is all identical, and the resin after drying is harder, elasticity is poor.Second, resin is shaken when playing wave when after being used for a long time The factors such as dynamic, fatigue stress, heat, it is possible to create the problems such as hardening, aging.Third, the material due to resin is different from fabric, hold The noise of resonance is easily generated with the vibration frequency of fabric, noise is more, low-frequency channel is not easy to show, loading resilience to have The bad disadvantage of bad disadvantage and sound quality.
Therefore the present utility model people is after observing above-mentioned missing, it is believed that existing bullet wave structure still has further Necessity of improvement, and have the generation of the utility model then.
Utility model content
The main purpose of the utility model is providing a kind of bullet wave with local elasticity's support construction, mainly penetrates bullet Property support portion setting, form that local elasticity is preferable and air-locked bullet wave, and provide the support for playing wave relative to voice coil vibrations, So that playing wave has more excellent fatigue durability.
In order to achieve the above object, the bullet wave provided by the utility model with local elasticity's support construction, it includes have: one Ontology, has a perforation, the ontology from the perforation towards a radially outer direction be sequentially provided with annular one first block, one the Two blocks and a third block, first block are an inner peripheral portion, which is an one wave part, and the third block is one Peripheral part;One resin layer is laid in first block, second block and the third block of the ontology, and using makes this Body keeps scheduled hardness and makes one wave part fixation wave-shaped;An at least flexible support portion is set to the second of the ontology Block, and cover the resin layer;And an at least ventilation area, second block are not provided with the flexible support portion and expose the tree The region of rouge layer;Wherein, which becomes local elasticity and air-locked setting by the flexible support portion.
Preferably, wherein the ontology is provided at least two flexible support portions, and the flexible support portion is selected from setting and exists One of both side surface of the ontology or combinations thereof.
Preferably, wherein the flexible support portion is in the ontology in the radial direction in a linear setting.
Preferably, wherein the flexible support portion forms at least two linearly settings.
Preferably, wherein the area of the flexible support portion is the area greater than, equal to or less than the ventilation area.
Preferably, wherein the ontology is provided with multiple flexible support portions, and the flexible support portion is set in distance each other In second block.
Preferably, wherein the flexible support portion is arranged around the perforation.
Preferably, wherein the shape of the flexible support portion is selected from rectangle, circle, sector, annular and one of trapezoidal Or combinations thereof.
Preferably, wherein the resin layer is selected from one of phenolic resin, epoxy resin and polyester resin or combinations thereof.
Preferably, wherein the flexible support portion is selected from one of synthetic rubber and natural rubber or combinations thereof.
Bullet wave provided by the utility model with local elasticity's support construction, mainly utilizes the flexible support portion Structure setting, in order to up to improve the ontology because resin layer setting caused by overall structure is too hard and elasticity is poor problem, meanwhile, should The setting of flexible support portion can more be effectively prevented the bad problem of loading resilience, to have the output sound for promoting loudspeaker The effectiveness of matter.
Detailed description of the invention
The stereoscopic figure of Fig. 1 the utility model first embodiment.
Partial cutaway view of Fig. 2A the utility model first embodiment along the line A-A of Fig. 1.
Partial cutaway view of Fig. 2 B the utility model first embodiment along the line A-A of Fig. 1.
The stereoscopic figure of Fig. 3 the utility model second embodiment.
Partial cutaway view of Fig. 4 A the utility model second embodiment along the line B-B of Fig. 3.
Partial cutaway view of Fig. 4 B the utility model second embodiment along the line B-B of Fig. 3.
The exploded perspective view of Fig. 5 the utility model second embodiment.
The stereoscopic figure of Fig. 6 the utility model 3rd embodiment.
The stereoscopic figure of Fig. 7 the utility model fourth embodiment.
The stereoscopic figure of the 5th embodiment of Fig. 8 the utility model.
Wherein, the reference numerals are as follows:
100 play wave
10 ontologies
11 perforation
12 first blocks
13 second blocks
14 third blocks
20 resin layers
30 flexible support portions
40 ventilation areas
Specific embodiment
Fig. 1, Fig. 2A and Fig. 2 B are please referred to, is the stereoscopic figure of the utility model first embodiment and the A-A along Fig. 1 The partial cutaway view of line.The utility model discloses a kind of bullet wave 100 with local elasticity's support construction, and it includes have:
One ontology 10, it is in the form of annular discs.As shown in Figure 1, the ontology 10 has a perforation 11, and from the perforation 11 towards a diameter It is sequentially provided with one first block 12, one second block 13 and the third block 14 of annular in outward direction.Second block 13 be an one wave part, keeps the section of the ontology 10 wave-shaped;First block 12 is an inner peripheral portion, is a flat surface setting, It is formed by between an inner peripheral of the ontology 10 and the one wave part positioned at the perforation 11;And the third block 14 is a periphery Portion is also a flat surface setting, between an outer peripheral edge and the one wave part for the ontology 10.
One resin layer 20 is first block 12, second block 13 and the third block for being laid in the ontology 10 14, using makes the ontology 10 keep scheduled hardness and makes one wave part fixation wave-shaped.The resin layer 20 is selected from phenolic aldehyde tree One of rouge, epoxy resin and polyester resin or combinations thereof.
An at least flexible support portion 30, is set to the second block 13 of the ontology 10, and covers the resin layer 20, makes this Body 10 becomes local elasticity and air-locked setting by the flexible support portion 30.The flexible support portion 30 be selected from synthetic rubber and One of natural rubber or combinations thereof.Synthetic rubber is, for example, butadiene-styrene rubber, isoprene rubber, butyl rubber, nitrile rubber, silicon Rubber, fluorubber, polyurethane rubber etc..The flexible support portion 30 be selected from be arranged in the ontology 10 both side surface wherein it One or combinations thereof.Preferably, the ontology 10 is provided at least two flexible support portions 30, the flexible support portion 30 is at this Body 10 is in the radial direction same linear setting, and the flexible support portion 30 is set in distance each other in second block 13.The shape of the flexible support portion 30 is selected from rectangle, circle, sector, annular and trapezoidal therein one or combinations thereof.
In the present embodiment, as shown in Figure 1, the ontology 10 is in second block 13 setting, there are two fan-shaped elasticity branch Support part 30, the flexible support portion 30 are set in distance each other on the circumferencial direction of the ontology 10, and in the ontology 10 In the radial direction in a linear setting.One of the both side surface of the ontology 10 is all arranged in the flexible support portion 30, I.e. as shown in Figure 1, the surface of the same side of the ontology 10 is all arranged in the flexible support portion 30.
An at least ventilation area 40, second block 13 are not provided with the flexible support portion 30 and expose the resin layer 20 Region.The ventilation area 40 makes the ontology 10 and the resin because being provided with flexible support portion 30 compared to the ontology 10 The capped region of layer 20 is that air permeability is higher.
The flexible support portion 30 of the utility model and the ventilation area 40 are as shown in Figure 2 A and 2 B, the edge Fig. 2A and Fig. 2 B The line A-A of Fig. 1 is cut and the partial cutaway view of formation;Wherein Fig. 2A shows the hatching by one of the bullet wave 100 bullet Property support portion 30 (flexible support portion 30 on the left of Fig. 1) partial cutaway view, Fig. 2 B shows the hatching by the bullet wave 100 The ventilation area 40 partial cutaway view.As shown in Figure 2 A and 2 B, 10 both side surface of ontology is all by the resin layer 20 are covered;And the ontology 10 of the bullet wave 100 is sequentially provided with first block from the perforation 11 towards a radially outer direction 12, second block 13 and the third block 14, and the flexible support portion 30 is arranged in second block 13.As shown in Figure 2 A, The bullet wave 100 of the present embodiment is at the position for being provided with the flexible support portion 30, because of a wherein side surface for the ontology 10 The resin layer 20 is further covered by the flexible support portion 30, compared to 10 both side surface of ontology the resin layer 20 not The ventilation area 40 covered by the flexible support portion 30 is (as shown in Figure 2 B) for relatively air impermeable setting.
It is noted that the area of the flexible support portion 30 may be greater than, equal to or less than the face of the ventilation area 40 Product.In the present embodiment, as shown in Figure 1, the area of the flexible support portion 30 is less than the area of the ventilation area 40, with office Adjust to portion's property air permeability, hardness and the elasticity of the ontology 10.
For further understandings of the utility model construction feature, application technology means and desired the effect of reaching, hereby will The utility model usage mode is described, it is believed that when that can have deeper into the utility model therefrom and specifically understand, such as It is lower described:
It is the stereoscopic figure of the utility model first embodiment and along figure referring again to shown in Fig. 1, Fig. 2A and Fig. 2 B The partial cutaway view of 1 line A-A.For the utility model construction feature and application technology means, mainly penetrate the bullet Property support portion 30 be set to the ontology 10 second block 13, use make the ontology 10 using the flexible support portion 30 covering area Domain keeps the effect of scheduled elasticity and ductility, and balances the situation that the resin layer 20 keeps 10 elasticity of ontology poor.Separately Outside, in being installed on loudspeaker or loudspeaker and when operating state, the utility model mainly utilizes the knot of the flexible support portion 30 Structure setting, in order to up to improve the ontology 10 because the resin layer 20 setting caused by overall structure is too hard and elasticity is poor problem, together When, the setting of the flexible support portion 30 can more be effectively prevented that noise generates, low-frequency channel is not easy to show and loading resilience Bad problem, to have the effectiveness for the output sound quality for promoting loudspeaker or loudspeaker.
Also, the bullet wave 100 of the utility model forms class in the section of the ontology 10 in imprint mode in heat-press step After wavy, the flexible support portion 30 is set in the ontology 10.Therefore, the flexible support portion 30 of the utility model will not be by To heat-press step high temperature and affected by high and cause physical characteristic change such as shape or hardness change.
It is noted that the utility model is by the ingredient and concentration for adjusting the flexible support portion 30, it is adjustable The local air permeability of the ontology 10 of the bullet wave 100, hardness, elasticity etc..
It is worth being mentioned that again, the utility model is by the area of the adjustment flexible support portion 30 relative to the ventilating area The area in domain 40, the ventilative range in the part of the ontology 10 of the adjustable bullet wave 100 and area.
Please continue to refer to shown in Fig. 3, Fig. 4 A, Fig. 4 B and Fig. 5, the stereoscopic figure of the utility model second embodiment, Along the partial cutaway view of the line B-B of Fig. 3 and the exploded perspective view of second embodiment.The present embodiment is compared with first embodiment, The difference is that both side surface a combination thereof of the ontology 10 is arranged in the flexible support portion 30, also that is, the two of the ontology 10 Side surface is both provided at least one flexible support portion 30.
In the present embodiment, using the flexible support portion 30 there are two the ontology 10 settings as example.Such as Fig. 3 and Fig. 5 institute Show, one of the flexible support portion 30 is arranged in a side surface of the ontology 10, and the flexible support portion 30 another Another side surface of the ontology 10, and linearly the setting in one in the radial direction in the ontology 10 of the flexible support portion 30 are set It sets.Also that is, in the present embodiment, the flexible support portion 30 is separately positioned on the difference on the not ipsilateral surface of the ontology 10 At position, but the position of the flexible support portion 30 is rendered as linearly being arranged in the horizontal direction.
More specifically, as shown in figure 5, in the present embodiment, first block 12, second block 13 of the ontology 10 And the third block 14 is laid with the resin layer 20, which is laid in the both side surface of the ontology 10, and the ontology 10 The second block 13 be further provided with the flexible support portion 30.As shown in above Fig. 4 A and Fig. 5, the flexible support portion 30 One of them be set to a side surface (uper side surface of Fig. 4 A) for the ontology 10 and cover the resin layer of a side surface 20, and the ontology 10 is made to become airtight setting because being covered with flexible support portion 30 at this;Such as the right side below Fig. 4 B and Fig. 5 Shown in side, another of the flexible support portion 30 is set to another side surface (downside surface of Fig. 4 B) of the ontology 10 and covers The resin layer 20 of another side surface is covered, and the ontology 10 is made to become impermeable because being covered with flexible support portion 30 at this Gas setting.Whereby, the present embodiment can equally reach such as the effect of first embodiment, and can control loudspeaker or loudspeaker is hollow The direction of flow of air, and the active force of balance is given for the up and down motion of voice coil.
It is noted that the embodiment of both side surface a combination thereof of the ontology 10 is arranged in the flexible support portion 30 Also may be used are as follows: the both side surface of the ontology 10 is respectively arranged at least one described flexible support portion 30, wherein be located at a side surface The flexible support portion 30 be located at another side surface the flexible support portion 30 position is corresponding each other in vertical direction; Alternatively, the both side surface of the ontology 10 is respectively arranged with multiple flexible support portions 30, wherein described in a side surface Flexible support portion 30 is setting interlaced with each other with the flexible support portion 30 for being located at another side surface.
Please continue to refer to Fig. 6 to Fig. 8, the utility model 3rd embodiment, fourth embodiment and the 5th embodiment it is outer Perspective view is seen, to further illustrate that the signified flexible support portion 30 of the utility model is set in distance each other in secondth area The example of block 13.
Fig. 6 and Fig. 7 is respectively the utility model 3rd embodiment and fourth embodiment, wherein the bullet wave 100 has multiple The flexible support portion 30, the flexible support portion 30 is on the circumferencial direction of the ontology 10 to each other across the ventilation area 40 And it is arranged.In the 3rd embodiment of Fig. 6, the flexible support portion 30 is four rectangles, and the flexible support portion 30 is formed extremely Few two linear settings, and in being in that cross is arranged on the ontology 10.And in the fourth embodiment of Fig. 7, the flexible support portion 30 be multiple circles, and the flexible support portion 30 is arranged around the perforation 11.
Fig. 8 is the 5th embodiment of the utility model, and the embodiment compared to Fig. 6, Fig. 7, the 5th embodiment of Fig. 8 is not Be in, the flexible support portion 30 the ontology 10 in the radial direction, be arranged to each other across the ventilation area 40. In the 5th embodiment of Fig. 8, using the flexible support portion 30 of annular as example.The flexible support portion 30 is with the perforation 11 Point centered on the center of circle around the perforation 11 and first block 12, and is set to second block 13, to be formed as the bullet of annular Property support portion 30.The flexible support portion 30 of the annular the ontology 10 in the radial direction, to each other across annular this thoroughly Gas region 40 is arranged.Whereby, the present embodiment can equally reach such as the effect of the first, second embodiment, and adjust the ontology 10 In hardness, air permeability and elasticity on circumferencial direction.
Hereby, then by the feature of the utility model and its attainable expected effect it is presented below:
The bullet wave 100 with local elasticity's support construction of the utility model, mainly utilizes the flexible support portion 30 Structure setting, in order to up to improve ontology 10 because resin layer 20 setting caused by overall structure is too hard and elasticity is poor problem, meanwhile, The setting of the flexible support portion 30 can more be effectively prevented the bad problem of loading resilience, promote the defeated of loudspeaker to have The effectiveness of sound quality out.
Whereby, the utility model has following implementation effect and technical effect:
First, the utility model is by ingredient, concentration and the setting range for adjusting the flexible support portion 30, it is adjustable Air permeability, hardness and the elasticity of 100 each position of bullet wave keep the bullet wave 100 of the utility model adjustable as local characteristics Structure.
Second, the ontology 10 that the flexible support portion 30 gives the bullet wave 100 supports and preferable bullet in voice coil vibrations Property, to control the amplitude of the bullet wave 100.Therefore the endurance with higher of bullet wave 100 of the utility model, avoid the bullet wave 100 because long with due to cause elasticity reduce and material embrittlement, service life it is longer.
In conclusion the progress practicability that the utility model has its splendid in fact in similar product, while it is domestic and international all over looking into It also finds no identical construction about the technical data of this class formation, in document to exist formerly, therefore the utility model is real Has new patent important document, whence is filed an application in accordance with the law.
Only, as described above, only preferable possible embodiments of the utility model.If without obviously repelling each other between embodiment The case where, feature, which can be bonded to each other, replaces application.Also, the utility model specification and claim institute are applied such as For equivalent structure variation, ought to be included in the utility model the scope of the patents in.

Claims (10)

1. a kind of bullet wave with local elasticity's support construction, it includes have:
One ontology, has a perforation, which is sequentially provided with one first area of annular from the perforation towards a radially outer direction Block, one second block and a third block, first block are an inner peripheral portion, which is an one wave part, and the third Block is a peripheral part;
One resin layer is laid in first block, second block and the third block of the ontology, and using protects the ontology It holds scheduled hardness and makes one wave part fixation wave-shaped;
An at least flexible support portion, is set to the second block of the ontology, and covers the resin layer;And
An at least ventilation area, second block are not provided with the flexible support portion and expose the region of the resin layer;
Wherein, which becomes local elasticity and air-locked setting by the flexible support portion.
2. the bullet wave according to claim 1 with local elasticity's support construction, which is characterized in that the ontology be provided with to Few two flexible support portions, the flexible support portion, which is selected from, is arranged in one of both side surface of the ontology or its group It closes.
3. the bullet wave according to claim 2 with local elasticity's support construction, which is characterized in that the flexible support portion In the ontology in the radial direction in a linear setting.
4. the bullet wave according to claim 3 with local elasticity's support construction, which is characterized in that the flexible support portion Form at least two linearly settings.
5. the bullet wave according to claim 1 with local elasticity's support construction, which is characterized in that the flexible support portion Area is the area greater than, equal to or less than the ventilation area.
6. the bullet wave according to claim 1 with local elasticity's support construction, which is characterized in that the ontology is provided with more A flexible support portion, the flexible support portion are set in distance each other in second block.
7. the bullet wave according to claim 6 with local elasticity's support construction, which is characterized in that the flexible support portion It is arranged around the perforation.
8. the bullet wave according to claim 1 with local elasticity's support construction, which is characterized in that the flexible support portion Shape is selected from rectangle, circle, sector, annular and one of trapezoidal or combinations thereof.
9. the bullet wave according to claim 1 with local elasticity's support construction, which is characterized in that the resin layer is selected from phenol One of urea formaldehyde, epoxy resin and polyester resin or combinations thereof.
10. the bullet wave according to claim 1 with local elasticity's support construction, which is characterized in that the flexible support portion Selected from one of synthetic rubber and natural rubber or combinations thereof.
CN201920115781.7U 2019-01-23 2019-01-23 Bullet wave with local elasticity's support construction Active CN209250886U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201920115781.7U CN209250886U (en) 2019-01-23 2019-01-23 Bullet wave with local elasticity's support construction

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201920115781.7U CN209250886U (en) 2019-01-23 2019-01-23 Bullet wave with local elasticity's support construction

Publications (1)

Publication Number Publication Date
CN209250886U true CN209250886U (en) 2019-08-13

Family

ID=67536633

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201920115781.7U Active CN209250886U (en) 2019-01-23 2019-01-23 Bullet wave with local elasticity's support construction

Country Status (1)

Country Link
CN (1) CN209250886U (en)

Similar Documents

Publication Publication Date Title
US10225658B2 (en) Elastic composite structure for speaker vibrating member
TWI236305B (en) Loudspeaker
JP4898035B2 (en) Externally mounted adjustable damping system for drum heads
KR20120101184A (en) A heat-insulating and sound absorbing material for the heat-insulating and sound absorbing structure of a car body
WO2006105131A3 (en) Vented disc brake rotor
US8098869B2 (en) Loudspeaker damper, manufacturing method thereof, and loudspeaker and electronic device using the same
CN209250886U (en) Bullet wave with local elasticity's support construction
CN103369449A (en) Preparation method for horn vibrating reeds
JP2002258869A (en) Sound board having improved composite structure
TWM300939U (en) Compound fabric and damper and vibration membrane edge of speaker made of same
US4646874A (en) Loudspeaker diaphragm
CN110432573B (en) Soft thin layer material
CN205946140U (en) Play ripples with elastic adhesive layer
TWM577621U (en) Rebound wave member with partially elastic support structure
US1757107A (en) Sound reproducer
JP2009508419A (en) Capacitive acoustic transducer with a perforated damping disk
CN107182013B (en) Loudspeaker vibrating piece and manufacturing method thereof
TWM531712U (en) Damper with elastic gel coating
CN112008992A (en) Elastic wave manufacturing method with elastic supporting structure arranged after forming
TW202044853A (en) Manufacturing method for damper provided with elastic support structure after molding characterized in that the damper uses the elastic support portion to become a partially elastic and airtight arrangement
JP2004254013A (en) Diaphragm for speaker
KR20130093210A (en) Acoustic equalizer absorption board
US20190088242A1 (en) Acoustic Absorber for Sound Screen Implementation in Earphones and Headphones
JPH0546180A (en) Sound absorber
JP2003309895A (en) Method for manufacturing member for speaker

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant