CN204775469U - Plastic skip body electric automobile - Google Patents
Plastic skip body electric automobile Download PDFInfo
- Publication number
- CN204775469U CN204775469U CN201520499304.7U CN201520499304U CN204775469U CN 204775469 U CN204775469 U CN 204775469U CN 201520499304 U CN201520499304 U CN 201520499304U CN 204775469 U CN204775469 U CN 204775469U
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- Prior art keywords
- electronlmobil
- chassis
- tubular beams
- plastic
- plastic body
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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.)
- Expired - Fee Related
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- 239000004033 plastic Substances 0.000 title claims abstract description 41
- 229920003023 plastic Polymers 0.000 title claims abstract description 41
- 239000000463 material Substances 0.000 claims abstract description 6
- 238000010276 construction Methods 0.000 claims description 15
- 230000002093 peripheral effect Effects 0.000 claims description 9
- 239000000725 suspension Substances 0.000 claims description 9
- 238000001816 cooling Methods 0.000 claims description 4
- 238000001746 injection moulding Methods 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 238000009434 installation Methods 0.000 abstract description 3
- 239000006096 absorbing agent Substances 0.000 abstract description 2
- 230000035939 shock Effects 0.000 abstract description 2
- 230000008901 benefit Effects 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 244000309464 bull Species 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000004927 fusion Effects 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000002991 molded plastic Substances 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000002990 reinforced plastic Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
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- Body Structure For Vehicles (AREA)
Abstract
The utility model discloses a plastic skip body electric automobile, bear formula automobile body and actuating system including rigidity frame, non -, the rigidity frame includes the tubulose roof beam that extend to set up along electric automobile length direction, and the preceding tip of tubulose roof beam extends to both sides and is equipped with preceding end support, and the back tip of tubulose roof beam extends to both sides and is equipped with the back end support, electric automobile's bumper shock absorber with hang ystem installation in on the rigidity frame, the middle part of tubulose roof beam is equipped with the pterygoid lamina to the extension of both sides interval, the formula automobile body is born including the lower part automobile body, upper portion automobile body, front bumper, rear bumper and the door that all adopt plastic materials to mould plastics and form to the non -, and the lower part automobile body includes the chassis, the chassis install in on the pterygoid lamina, the chassis middle part is provided with and is used for holding the recess of tubulose roof beam, the recess link up around the length direction of tubulose roof beam. The utility model discloses a plastic skip body electric automobile adopts the plastic skip body of the non - formula of bearing, and the chassis is low, accords with the low chassis requirement of domestic car.
Description
Technical field
The utility model relates to electric vehicle engineering field, specifically, relates to a kind of all-plastic body electronlmobil.
Background technology
Along with rapid economic development, family's personal car recoverable amount is more and more higher, and petroleum-based energy is consumed huge, aerial contamination is day by day serious.Therefore, development does not need to use oil as drive energy, and the electronlmobil that can not pollute air in use procedure has put on schedule.
The development of electronlmobil is subject to the technique confinement of orthodox car industry, and at present, traditional domestic automobile adopts self-supporting body mostly, and self-supporting body needs with metal body, and vehicle is single, and automobile development exists the restriction of the condition such as fund, technology.If use injection molding manner manufacture self-supporting body, the extinguishing coefficient etc. of its fatigue factor, toughness and rigidity all lacks prolonged application data to support, and if use body-chassis frame construction chassis higher, do not meet the low chassis requirement of car.Therefore, the electrocar of all-plastic body can not still be promoted at present on a large scale.
In addition, current electronlmobil all adopts coaxial motor to drive, namely the output shaft of motor and the rotating shaft of automobile coaxial, direct drive vehicle wheel rotation, motor mostly adopts magneto-electric machine and AC induction motor, in the actuating device of the electronlmobil of this structure, the power of required motor is comparatively large, and motor easily generates heat and not easily lowers the temperature.
Utility model content
Technical problem to be solved in the utility model is: provide a kind of and can adopt Non-carrying type all-plastic body and the low all-plastic body electronlmobil in chassis.
For solving the problems of the technologies described above, the technical solution of the utility model is:
All-plastic body electronlmobil, comprises rigid-frame, body-chassis frame construction and drive system;
Described rigid-frame comprises along the extended tubular beams of electronlmobil length direction, the leading section of described tubular beams is provided with front-end bracket to both sides extension, the rearward end of described tubular beams is provided with rear end support to both sides extension, electronlmobil bumper and suspension are installed on rigid-frame, and the middle part of described tubular beams is provided with wing plate to the extension of interval, both sides;
Described body-chassis frame construction comprises the lower body, upper body, front bumper, rear bumper and the car door that all adopt plastic material injection moulding to be formed, described lower body comprises chassis, described chassis is installed on described wing plate, be provided with the groove for holding described tubular beams in the middle part of described chassis, described groove is through before and after the length direction of tubular beams.
Preferably, described front-end bracket is provided with away from the end of described tubular beams the pan connecting front wheel suspension.
Preferably, described front-end bracket is provided with away from the end of described tubular beams the front end arc support installing front wheel damper.
Preferably, described rear end support is provided with away from the end of described tubular beams the pan connecting Rear wheel suspension.
Preferably, described rear end support is provided with away from the end of described tubular beams the rear end arc support installing rear wheel shock-absorbing device.
Preferably, described drive system comprises the actuating device that two covers are respectively used to drive rear wheel, described actuating device comprises two motors being separately positioned on axletree both sides, the output shaft of each described motor is separately installed with driving gear, the outer peripheral of described driving gear is provided with ring gear, external gear bar on described driving gear outer peripheral face is meshed with the inner gear bar on described ring gear inner peripheral surface, and the diameter of described driving gear is less than the radius of described ring gear;
Described ring gear with for driving the rotating shaft of vehicle wheel rotation to be fixedly connected with.
Preferably, two described driving gears are symmetrical arranged along the axial line of described ring gear, and the axial line of two described driving gears and the axial line of described ring gear are on the same face.
Preferably, described motor adopts DC machine.
Preferably, described actuating device comprises shell, and described motor, described driving gear and described ring gear are all located in described shell; Described shell is provided with the water cooling system of the stator connecting described motor.
Preferably, each described motor is provided with independently-powered battery, and described battery is connected with solar panel.
After have employed technique scheme, the beneficial effects of the utility model are:
All-plastic body electronlmobil of the present utility model, adopt rigid-frame and Non-carrying type all-plastic body, rigid-frame comprises tubular beams, the circular tube thickness of tubular beams hold by the through groove in the front and back in chassis, this kind of structure design, the chassis solving chassis frame and body construction is placed on vehicle frame, and position, chassis is higher, be not suitable for the vehicle such as car and este wagon, be only applicable to the problems such as cross-country car SUV vehicle.Tubular beams is positioned at the middle part of electronlmobil, forms equilateral triangle with left and right wheels touchdown point.So vehicle stability is more excellent.The all-plastic body electronlmobil of the present embodiment, adopt rigid-frame and Non-carrying type all-plastic body, rigid-frame comprises tubular beams, the circular tube thickness of tubular beams hold by the through groove in the front and back in chassis, the pipe of tubular beams has good in axial torsion characteristics, the body-chassis frame construction toughness of all-plastic is high, unit body is possessed good degree of fusion, adopt the body-chassis frame construction of all-plastic, toughness is high, and be easy to recovery and reinvent utilization, take full advantage of the characteristic advantage of plastic material.
In the utility model, drive system comprises the actuating device that two covers are respectively used to drive rear wheel, actuating device takes Dual-motors Driving technology, two motors are set, drive the driving gear that two diameters are less respectively, two driving gears less by diameter carry out the larger ring gear of driving diameter, realize steamboat and drive bull wheel, thus make driving gear firmly less, the motor of smaller power can be used realize driving, and use double-motor when starting, and when electronlmobil normally travels, can a motor in a startup double-motor, another motor is allowed to be in closed condition, two motors can be made to be used alternatingly, to reduce the cal val of each motor, extend the service life of motor.Therefore, the actuating device of this kind of double-motor driving structure, greatly reduces the power of motor, reduces cost, and reduces the cal val of motor.
In the utility model, each described motor is provided with independently-powered battery, and described battery is connected with solar panel.Efficiently avoid the phenomenon of charging mutually between battery, ensure that the normal use of battery, extend the service life of battery, and can solar power be made full use of.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is described in further detail:
Fig. 1 is the structural representation of the rigid-frame in the utility model;
Fig. 2 is the structural representation of the actuating device in the utility model;
Fig. 3 is the right elevation of Fig. 2;
Fig. 4 is the decomposing schematic representation of the non-bearing vehicle body in the utility model;
In figure: 1, tubular beams; 2, front-end bracket; 21, front end arc support; 22, pan; 3, rear end support; 31, rear end arc support; 32, pan; 4, wing plate; 5, bumper; 6, actuating device; 61, motor; 62, driving gear; 63, ring gear; 64, rotating shaft; 65, shell; 7, brake disc; 8, wheel terminal pad; 9, wheel; 10, upper body; 11, chassis; 111, groove; 12, front bumper; 13, rear bumper; 14, axletree.
Detailed description of the invention
In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
With reference to Fig. 1, Fig. 2, Fig. 3 and Fig. 4, the all-plastic body electronlmobil of the present embodiment, comprises rigid-frame, body-chassis frame construction and drive system.
Rigid-frame comprises along the extended tubular beams 1 of electronlmobil length direction, the leading section of tubular beams 1 is provided with front-end bracket 2 to both sides extension, the rearward end of tubular beams 1 is provided with rear end support 3 to both sides extension, the bumper of electronlmobil and suspension are installed on rigid-frame, the middle part of tubular beams 1 is provided with some wing plates 4, in order to installation chassis 11 to the extension of interval, both sides.Rigid support is positioned between front-end bracket 2 and rear end support 3 and backplate or protecting wire net can be installed, in order to protect chassis 11.
Wing plate 4 is installed on the bottom of tubular beams 1, and wing plate 4 and tubular beams 1 are by being welded into one, and the size of the auxiliary part of weld is no more than the vertical line of tubular beams 1 side.The bottom of wing plate 4 should be concordant with bottom tubular beams 1 or a little less than the bottom of tubular beams 1.
Front-end bracket 2 and rear end support 3 are installed on the bottom of tubular beams 1 respectively, and by being welded into one, the size of the auxiliary part of welding is no more than the vertical line of tubular beams 1 side.Front-end bracket 2 is provided with away from the end of tubular beams 1 pan 22 connecting front wheel suspension.Front-end bracket 2 is provided with the front end arc support 21 of the bumper installing front-wheel away from the end of tubular beams 1.Rear end support 3 is provided with away from the end of tubular beams 1 pan 32 connecting Rear wheel suspension, and rear end support 3 is provided with the rear end arc support 31 of the bumper 5 installing trailing wheel away from the end of tubular beams 1.
The upper end of front end arc support 21, the upper end of rear end arc support 31 are connected with body-chassis frame construction respectively.
Body-chassis frame construction comprises the lower body, upper body 10, front bumper 12, rear bumper 13 and the car door that all adopt plastic material injection moulding to be formed, and the trim panel of overall plastic electronlmobil adopts piecemeal injection molded, is fastened and connected with vehicle body.
Wherein, lower body comprises a part for chassis 11 and outside vehicle body, and be highly the top of wheel arch, chassis 11 is installed on wing plate 4, is provided with the groove 111 for holding tubular beams 1 in the middle part of chassis 11, and groove 111 is through before and after the length direction of tubular beams 1.The top of groove 111 is the installation site such as partial function key and parking brake.The top, rear and front end of tubular beams 1 can arrange connecting panel, in order to connect front bumper 12 and rear bumper 13.
In the present embodiment, front-end bracket 2, rear end support 3 and wing plate 4 are all connected to the bottom of tubular beams 1, the tubular beams 1 that pipe is formed obviously is raised in front-end bracket 2, rear end support 3 and wing plate 4, when the rigid-frame formed with tubular beams 1 on the chassis 11 of body-chassis frame construction is installed, tubular beams 1 be placed in run through front and back in the middle part of chassis 11 groove 111 in.This kind of structure design, the chassis solving chassis frame and body construction is placed on vehicle frame, and position, chassis is higher, is not suitable for the vehicle such as car and este wagon, is only applicable to the problems such as cross-country car SUV vehicle.In the present embodiment, tubular beams 1 is positioned at the middle part of electronlmobil, forms equilateral triangle with left and right wheels touchdown point, so vehicle stability is more excellent.
The front and rear part on chassis 11 connects as one with the camber support of support and mounting shock absorber respectively, and the bottom on chassis is connected with the wing plate of tubular beams vehicle frame.
Upper body 10 comprises the top of roof and side vehicle body, height by wheel arch to roof.Upper body 10 is vitals of overall plastic electronlmobil vehicle change, changes the upper body then vehicle change of different style.According to different vehicles, in A, B, C post of vehicle body, establish reinforced rib, after upper body and lower body fasten, do strengthening by the INT COMP of reinforced rib to company headquarters A, B, C post and fit connection.
Front bumper 12 and rear bumper 13, inner support frame adopts rhombus design, and strengthen and absorb energy function, front bumper 12 is connected the tubular beams 1 of vehicle body with rear bumper 13.
Car door (not shown) is that integral molded plastic makes, and does to strengthen process, formed by inside and outside two pieces of fastenings in doorframe.Windshield changes reinforced plastic into and makes, but its photometric characteristics is substantially identical with common windshield.In plastic body cover makes, for when there is larger area tabular, in it, select cellular rib muscle structure design to face.To selecting rib plank designs in the outside vehicle body of lower body, it is upper and lower rib.
The all-plastic body electronlmobil of the present embodiment, adopt rigid-frame and Non-carrying type all-plastic body, rigid-frame comprises tubular beams 1, the circular tube thickness of tubular beams 1 hold by the through groove 111 in the front and back in chassis 11, the pipe of tubular beams 1 has good in axial torsion characteristics, the body-chassis frame construction toughness of all-plastic is high, unit body is possessed good degree of fusion, adopt the body-chassis frame construction of all-plastic, toughness is high, and be easy to recovery and reinvent utilization, take full advantage of the characteristic advantage of plastic material.
In the present embodiment, drive system comprises the actuating device 6 that two covers are respectively used to drive rear wheel, actuating device 6 comprises two motors 61 being separately positioned on axletree 14 both sides, the outer race of axletree 14 is provided with rotating shaft 64, the output shaft of each motor 61 is separately installed with driving gear 62, the outer peripheral of driving gear 62 is provided with ring gear 63, external gear bar on driving gear 62 outer peripheral face is meshed with the inner gear bar on ring gear 63 inner peripheral surface, and the diameter of driving gear 62 is less than the half of the diameter of ring gear 63; Ring gear 63 with for driving the rotating shaft 64 of vehicle wheel rotation to be fixedly connected with, rotating shaft 64 is integrated with brake disc 7, wheel terminal pad 8 one-tenth, the common rotating element forming actuating device 6.Two motors 61, axletree 14 and shells 65 form the fixed part of motor driver 6.The rotating shaft 64 formed by connection of rotating partial component is sleeved on above axletree.Actuating device 6 is connected with rigid-frame by bumper 5, pan 32.Actuating device 6 comprises shell 65, and motor, driving gear and ring gear are all located in shell; Shell is provided with the water cooling system of the stator connecting motor.
In the present embodiment, two driving gears 62 are symmetrical arranged along the axial line of ring gear 63, and the axial line of two driving gears 62 and the axial line of ring gear 63 are on the same face.
Motor 61 adopts DC machine, when motor per minute 4000 to 6000 turns, optimizes the gear ratio of driving gear and ring gear, the speed of a motor vehicle of electronlmobil can be made to reach the speed per hour of 65 to 80 kilometers/hour, can meet the rate request ridden instead of walk in city.When DC machine is changed the outfit into performance-oriented magneto-electric machine, when motor speed can reach per minute 10000 to 15000 turns, can realize the speed per hour more than 200 kilometers/hour, satisfied part is competed for speed the demand of fan.
Actuating device 6 in the present embodiment takes Dual-motors Driving technology, two motors 61 are set, drive the driving gear 62 that two diameters are less respectively, two driving gears 62 less by diameter carry out the larger ring gear of driving diameter 63, realize steamboat and drive bull wheel, thus make driving gear 62 firmly less, the motor 61 of smaller power can be used to realize driving, and use double-motor when starting, and when electronlmobil normally travels, can a motor in a startup double-motor, another motor is allowed to be in closed condition, two motors 61 can be made to be used alternatingly, to reduce the cal val of each motor 61, extend the service life of motor.Therefore, the actuating device of this kind of double-motor driving structure, greatly reduces the power of motor, reduces cost, and reduces the cal val of motor, and the water cooling system on shell 65 can avoid motor overheating effectively, ensures the normal use of motor further.
In the present embodiment, each motor 61 is provided with independently-powered battery, efficiently avoid the phenomenon of charging mutually between battery, ensure that the normal use of battery, extend the service life of battery, solar panel can be installed additional on electronlmobil, make full use of solar recharging, riding instead of walk as in the city working clan of main use with on and off duty, nine to ten two hour vehicles are had every day to be at parked state, utilize solar panel to charge to vehicle, be then benefit the nation and the people, energy-saving and environmental protection, consumption reduction upper act.Optional be loaded on roof cambered surface solar panel, with the use of the sun shield that makes of membrane type solar panel, to increase the area of cell panel, improve charging ability.Add good solar charging electric control system, then substantially can meet the electricity needs of user, to reduce using and relying on national grid.
The above is the citing of the utility model preferred forms, and the part wherein do not addressed in detail is the common practise of those of ordinary skill in the art.Protection domain of the present utility model is as the criterion with the content of claim, and any equivalent transformation carried out based on technology enlightenment of the present utility model, also within protection domain of the present utility model.
Claims (10)
1. all-plastic body electronlmobil, is characterized in that: comprise rigid-frame, body-chassis frame construction and drive system;
Described rigid-frame comprises along the extended tubular beams of electronlmobil length direction, the leading section of described tubular beams is provided with front-end bracket to both sides extension, the rearward end of described tubular beams is provided with rear end support to both sides extension, electronlmobil bumper and suspension are installed on described rigid-frame, and the middle part of described tubular beams is provided with wing plate to the extension of interval, both sides;
Described body-chassis frame construction comprises the lower body, upper body, front bumper, rear bumper and the car door that all adopt plastic material injection moulding to be formed, described lower body comprises chassis, described chassis is installed on described wing plate, be provided with the groove for holding described tubular beams in the middle part of described chassis, described groove is through before and after the length direction of tubular beams.
2. all-plastic body electronlmobil as claimed in claim 1, is characterized in that: described front-end bracket is provided with to connect the pan of front wheel suspension away from the end of described tubular beams.
3. all-plastic body electronlmobil as claimed in claim 2, is characterized in that: described front-end bracket is provided with to install the front end arc support of the bumper of front-wheel away from the end of described tubular beams.
4. all-plastic body electronlmobil as claimed in claim 3, is characterized in that: described rear end support is provided with to connect the pan of Rear wheel suspension away from the end of described tubular beams.
5. all-plastic body electronlmobil as claimed in claim 4, is characterized in that: described rear end support is provided with to install the rear end arc support of the bumper of trailing wheel away from the end of described tubular beams.
6. the all-plastic body electronlmobil as described in any one of claim 1 to 5, it is characterized in that: described drive system comprises the actuating device that two covers are respectively used to drive rear wheel, described actuating device comprises two motors being separately positioned on axletree both sides, the output shaft of each described motor is separately installed with driving gear, the outer peripheral of described driving gear is provided with ring gear, external gear bar on described driving gear outer peripheral face is meshed with the inner gear bar on described ring gear inner peripheral surface, and the diameter of described driving gear is less than the radius of described ring gear;
Described ring gear with for driving the rotating shaft of vehicle wheel rotation to be fixedly connected with.
7. all-plastic body electronlmobil as claimed in claim 6, is characterized in that: two described driving gears are symmetrical arranged along the axial line of described ring gear, and the axial line of two described driving gears and the axial line of described ring gear are on the same face.
8. all-plastic body electronlmobil as claimed in claim 7, is characterized in that: described motor adopts DC machine.
9. all-plastic body electronlmobil as claimed in claim 8, it is characterized in that: described actuating device comprises shell, described motor, described driving gear and described ring gear are all located in described shell; Described shell is provided with the water cooling system of the stator connecting described motor.
10. all-plastic body electronlmobil as claimed in claim 9, is characterized in that: each described motor is provided with independently-powered battery, and described battery is connected with solar panel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520499304.7U CN204775469U (en) | 2015-07-10 | 2015-07-10 | Plastic skip body electric automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520499304.7U CN204775469U (en) | 2015-07-10 | 2015-07-10 | Plastic skip body electric automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204775469U true CN204775469U (en) | 2015-11-18 |
Family
ID=54515578
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520499304.7U Expired - Fee Related CN204775469U (en) | 2015-07-10 | 2015-07-10 | Plastic skip body electric automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204775469U (en) |
-
2015
- 2015-07-10 CN CN201520499304.7U patent/CN204775469U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151118 |