CN101565011A - Work vehicle - Google Patents
Work vehicle Download PDFInfo
- Publication number
- CN101565011A CN101565011A CNA2009101339892A CN200910133989A CN101565011A CN 101565011 A CN101565011 A CN 101565011A CN A2009101339892 A CNA2009101339892 A CN A2009101339892A CN 200910133989 A CN200910133989 A CN 200910133989A CN 101565011 A CN101565011 A CN 101565011A
- Authority
- CN
- China
- Prior art keywords
- oil
- power fluid
- gear
- working
- working oil
- 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.)
- Granted
Links
Images
Landscapes
- Details And Applications Of Rotary Liquid Pumps (AREA)
- Refuse-Collection Vehicles (AREA)
- Rotary Pumps (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
The invention provides a work vehicle equipped with an oil pressure driven type working machine, which can reduce noise and vibration. A duplex gear pump (32) conveys working oil by the engaging rotation of a gear mesh composed of a driving gear and a driven gear in mesh, has two gear meshes which performs working oil conveying motions with alternately pulse (half period is ideal), thereby, counteracts the pulsation and inhibits vibration. a flow regulator (33) disposed in the working oil-path (41) which connects the gear pump and the working machine controls a part of the working oil to return to the working oil storage tank (31) through an oil-returning motion oil-path (43), in order to keep the oil pressure in the working oil-path within the predetermined value; thus, the operator can be inhibited from increasing the engine rotating speed to improve the speed of the working machine, thereby, the vibration amplitude of every part can be inhibited, and noise and vibration is reduce.
Description
Technical field
The present invention relates to a kind of working truck that carries the oil pressure actuated Work machine.
Background technology
Current, use various vehicles as working truck.Here, so-called working truck is meant and carries Work machine on vehicle, utilizes this Work machine to carry out the vehicle of operation (except travelling of vehicle).Shown in introducing in the example of following refuse collector, the working truck that is equipped with the oil pressure actuated Work machine is widely used.
Current, use refuse collector 1 as shown in Figure 7 with rotary delivery board (swivel mount) 2 and oscillating type filling plate (pushing plate) 3.Delivery board 2 drives by oil hydraulic motor 4.Filling plate 3 drives by oil hydraulic cylinder 5.Carry oil pressure pump in refuse collector 1, it is as the drive source in the oil hydraulic circuit that drives oil hydraulic motor 4 and oil hydraulic cylinder 5.As the type of drive of this oil pressure pump, known following 3 kinds of modes.
Fig. 9 and refuse collector lb shown in Figure 10 adopt electric drive-type.Refuse collector 1b, to being that the inverter 9 of power supply is controlled with the storage battery 8 that is carried, driving motor 10 is passed to oil pressure pump 7 with the rotation of electrical motor 10, makes oil pressure pump 7 rotations, power fluid in the oil hydraulic circuit is produced flow.
In addition, exist and to possess the two mode of engine drive system and electrical drive system as the rotary drive system of oil pressure pump.This mode is documented in the patent documentation 1～4.
In patent documentation 1,2, record driving engine PTO apparatus system and storage battery electric motor system structured flowchart as the rotary drive system of oil pressure pump.As concrete structure, in patent documentation 1, put down in writing following structure: electrical motor is installed and on the S. A. of incorporate physical construction, is connected the PTO device in the periphery of oil pressure pump.
In patent documentation 3, put down in writing by engine-driven axle drive shaft and oil pressure pump bonded assembly constructional drawing.According to said structure figure, electrical drive system also is connected with above-mentioned oil pressure pump.In patent documentation 4, put down in writing and linked driving engine, generator motor, oil pressure pump structure successively.In patent documentation 3,4 structures of being put down in writing, do not use the PTO device.
In arbitrary mode, all be the pressure oil that produces by the rotation that utilizes oil pressure pump 7, drive oil hydraulic motor 4 and oil hydraulic cylinder 5, make delivery board 2 and 3 actions of filling plate, carry out operation actions such as rubbish loading.Therefore, refuse collector 1 by the control cock in the switching oil hydraulic circuits such as electric signal (3 logical bipitch casts etc.), changes flowing of power fluid, the action of oil pressure activated devices such as control oil hydraulic motor 4 and oil hydraulic cylinder 5 thus.
When comprising working plate 2,3 and not moving, when driving oil pressure pump 7, there is the bigger problem of the mobile noise that causes by power fluid.
In recent years, make the messy problem in Refuse bin, tend to the refuse collection in night and early morning gradually in order to relax traffic jam and to solve by crow etc.Accompany therewith, contiguous resident constantly increases the tip-offs about environmental issues number of the noise that refuse collection produced in early morning at night.
As the means that address the above problem, in order to make the pump low noiseization, proposed in the prior art on refuse collector various pumps are installed, but previously presented method merits and faults and depositing not have to propose absolute suitable pump.
Below, as a reference, the example of the pump that has proposed is shown.
The external gear pump, because simple structure, not fragile, low price and miniaturization, thereby be widely used, but gear meshing sound and oil spout pulsation are bigger, so noise is big.
The annulus pump does not produce engagement sound as the external gear pump and low noise, but owing to need high speed revolution, so define environment for use.In addition, because the size of annulus pump is bigger, so,, on refuse collector, do not popularize in Japan to the sole installed inside difficulty of 2 tons of trucies.
Piston pump utilizes moving up and down of piston and carries out the extruding of oil, and noise is lower, but because complex structure, components number are many, price is higher usually, and size is also bigger.
In refuse collector because operating personal wishes to improve the operating speed of machinery, so have the behavior of having a mind to accelerate engine speed and improving the work speed of pump, but from the angle of noise, the behavior existing problems.Using on the refuse collector under the plunger pump situation of (plunger pump belongs to the piston pump class), for plunger pump, even to be rotated driving more than or equal to certain speed, owing to have and make power fluid return the action of petrol storage tank, can further not improve operating speed, so have the effect that suppresses above-mentioned behavior.
Therefore, knownly can guarantee lower noise, have the effect that prevents above-mentioned behavior simultaneously by on refuse collector, using plunger pump.
On the other hand, provide duplex gear pump in gear type pump, it is by making the pulsation of cancelling out each other of 2 pairs of gear mesh, thereby realizes the low vibration of low noise.
Patent documentation 1: the spy opens flat 10-37904 communique
Patent documentation 2: the spy opens the 2003-146600 communique
Patent documentation 3: the spy opens flat 10-42587 communique
Patent documentation 4: the spy opens the 2004-150307 communique
Summary of the invention
The present invention proposes in view of above-mentioned the problems of the prior art, and its problem is in the working truck that carries the oil pressure actuated Work machine, to reduce noise and vibration.
In order to solve above-mentioned problem, the invention of technical scheme 1 record is a kind of working truck, and it has: gear type pump; And Work machine, its utilization is driven by the power fluid of described gear type pump positive delivery, described gear type pump adopts the mode of power fluid being carried out positive delivery by the engagement rotation of the gear mesh that is made of intermeshing driven wheel and driven gear, have 2 pairs of described gear mesh, these 2 pairs of gear mesh stagger each other from the pulsation of power fluid positive delivery action, described gear type pump carries out positive delivery to the power fluid in the power fluid petrol storage tank, this working truck also has: valve, and it is arranged in described gear type pump and the up working oil path that described Work machine links to each other; And the downlink working oil circuit, it, is connected with described power fluid petrol storage tank from described up working oil path branch at described valve place, described valve, and a part that makes power fluid is returned described power fluid petrol storage tank via described downlink working oil circuit.
The invention of technical scheme 2 records on the basis of technical scheme 1 described working truck, also has: flow regulator, and it is arranged in the described up working oil path; Oil return action oil circuit, its at described flow regulator place from described up working oil path branch, be connected with described power fluid petrol storage tank, described flow regulator, a part that makes power fluid is via described oil return action oil circuit, return described power fluid petrol storage tank, so that the oil pressure in the described up working oil path is no more than specified value.
The invention of technical scheme 3 records on the basis of technical scheme 1 or 2 described working trucks, has the described gear pump motor of driving.
The effect of invention
According to the present invention, gear type pump can utilize 2 pairs of gear mesh, makes by the part of the oil spout pulsation of the power fluid of gear mesh positive delivery to cancel out each other.In addition,,, the oil pressure in the working oil path is suppressed in the specified value, thus, suppresses the behavior of accelerating the rotating speed of driving engine, pump wittingly because operating personal wishes to improve the operating speed of machinery by the action of flow regulator according to the present invention.Therefore, according to the present invention, have the level of vibration that can suppress each several part, the effect that reduces noise and vibration.
Description of drawings
Fig. 1 is the structured flowchart that carries the oil pressure actuated system on the related working truck of an embodiment of the invention.
Fig. 2 is the structured flowchart that carries the oil pressure actuated system on the related working truck of conventional example.
Fig. 3 is the signal stravismus transparent view of the related duplex gear pump of an embodiment of the invention.
Fig. 4 is the internal structure scheme drawing of the related duplex gear pump of an embodiment of the invention.
In Fig. 5, be to extract the axle drive shaft of simply connected gear type pump and driven wheel and the oblique drawing described (a1).(b1) be to extract the axle drive shaft of the related duplex gear pump of an embodiment of the invention and 2 driven wheels and the oblique drawing described.(a2) be the waveform of the oil spout pulsation of expression simply connected gear type pump.(b2) be the waveform of the oil spout pulsation of expression duplex gear pump.
Fig. 6 is the noise-measuring result's of expression example of the present invention and Comparative Examples 1,2 a diagram of curves.
Fig. 7 is the oblique drawing of expression refuse collector.
Fig. 8 is the approximate vertical view of the refuse collector of expression PTO mode.
Fig. 9 is the approximate vertical view of the electric drive-type refuse collector of expression.
Figure 10 is the left surface figure of the electric drive-type refuse collector of expression.
The specific embodiment
Below, with reference to accompanying drawing, an embodiment of the invention are described.Below be an embodiment of the invention, but do not limit the present invention.
Fig. 1 is the structured flowchart that carries the oil pressure actuated system on the related working truck of an embodiment of the invention.The up working oil path 41 that is linked to each other from power fluid petrol storage tank 31 to oil pressure activated device 35, dispose duplex gear pump 32, flow regulator 33, electromagnetic valve 34 successively.Working oil path between power fluid petrol storage tank 31 and the duplex gear pump 32 note is made 41a, the note of the working oil path between duplex gear pump 32 and the flow regulator 33 is made 41b.Oil pressure activated device 35 is equivalent to oil hydraulic motor shown in Figure 74 and oil hydraulic cylinder 5.The downlink working oil circuit 42 that branches out from up working oil path 41 at electromagnetic valve 34 places is connected with power fluid petrol storage tank 31.In addition, the oil return action oil circuit 43 that branches out from up working oil path 41 at flow regulator 33 places is connected with power fluid petrol storage tank 31.
Flow regulator 33 can not surpass specified value in order to make the oil pressure in the working oil path 41b, and opening/closing is carried out in the path of oil return action oil circuit 43 sides, makes the part of power fluid return the power fluid petrol storage tank via oil return action oil circuit 43.
Therefore, even using under the situation of driving engine as shown in Figure 8 as the drive source of duplex gear pump 32, also can suppress operating personal is the rotating speed that purpose improves driving engine with the speed that improves Work machine, accelerates the responsiveness of oil pressure activated device.
Fig. 2 is the structured flowchart that carries the oil pressure actuated system on the related working truck of the example of prior art.Compare with the example of the prior art, the difference of the oil pressure actuated system of present embodiment is, duplex gear pump 32, flow regulator 33 and oil return action oil circuit 43 are installed.Gear type pump 38 shown in Figure 2 is the simply connected gear type pump with gear mesh of 1 pair of transportation work oil, and is relative therewith, and the difference that is applied to the duplex gear pump 32 of present embodiment is to have the gear mesh of 2 pairs of transportation work oil.
Below, the structure of duplex gear pump 32 is described.Fig. 3 is the stravismus transparent view of the signal of duplex gear pump 32.Fig. 4 is the internal structure scheme drawing of duplex gear pump 32.
Fig. 4 is the internal structure scheme drawing of duplex gear pump 32, and it has depicted the profile of 4 gear 32b, 32c, 32e, 32f on the section of the housing 32g vertical with axle drive shaft 32a.As shown in Figure 4, the fixed angle of the fixed angle of driven wheel 32b and driven wheel 32c half tooth pitch that staggers each other.
As shown in Figure 3, Figure 4, form the cavity in the inside of housing 32g, this cavity has the part cylinder inner surface that covers 4 gear 32b, 32c, 32e, 32f, and above-mentioned cavity has opening at the axial two ends vertical with the spacing bus of gear mesh.Working oil path 41a is connected with the opening of the side of housing 32g, and working oil path 41b is connected with the opening of opposite side.In Fig. 3 and Fig. 4, utilize circular arc arrow 32h, expression is used for the hand of rotation to the gear mesh of working oil path 41b positive delivery power fluid.When the represented direction of circular arc arrow 32h was rotated, the power fluid from working oil path 41a supplies with was closed between the part cylinder inner surface of each gear 32b, 32c, 32e, 32f and housing 32g, carries to working oil path 41b side at gear mesh.In Fig. 3 and Fig. 4, utilize arrow 32k, the flow path of expression power fluid at this moment.
As shown in Figure 4, the fixed angle of the fixed angle of driven wheel 32b and driven wheel 32c half tooth pitch that staggers each other.Therefore, the pulsation of the conveying action of the pulsation of the positive delivery of gear mesh 32b, 32c action and gear mesh 32e, 32f is staggered a semiperiod each other.Thus, the fuel charge of duplex gear pump 32 single-piece power fluides is constant, and simultaneously, the pulsation of 2 gear mesh is cancelled out each other, and realizes low vibration low noise.
With reference to Fig. 5 the theory that this pulsation is offset is described.Fig. 5 (b1) extracts the axle drive shaft 32a of duplex gear pump 32 of present embodiment and 2 driven wheel 32b, 32c out and the oblique drawing represented.The axial length of 2 driven wheel 32b, 32c is equal to each other, and this length is made as L.Fig. 5 (a1) extracts the axle drive shaft 52a of simply connected gear type pump and driven wheel 52b out and the oblique drawing represented.Simply connected gear type pump shown in Fig. 5 (a1), with respect to the duplex gear pump 32 shown in Fig. 5 (b1), difference is that the axial length of driven wheel 52b is 2L, other specifications are identical.For example, by said structure, simply connected gear type pump and duplex gear pump that capacity is equated compare.As ideal situation, when the oil spout of simply connected gear type pump pulsation shows as waveform a shown in Fig. 5 (a2), the oil spout pulsation of the gear mesh of one side of duplex gear pump shows as the waveform a1 shown in Fig. 5 (b2), and the oil spout pulsation of the gear mesh of opposite side shows as waveform a2.Shown in Fig. 5 (a2), (b2), the amplitude of waveform a1 and waveform a2 is half of amplitude of waveform a.Shown in Fig. 5 (b2), for waveform a1 and waveform a2, amplitude and cycle are equal to each other, and phase place staggers a semiperiod each other.Therefore, the fuel charge of the gear mesh of the opposite side of the fuel charge of the gear mesh of a side of pulsatile change and the pulsatile change of the semiperiod of staggering each other replenishes mutually, makes the amount of the power fluid that sprays to working oil path 41b constant.Like this, the pulsation of the pulsation of the gear mesh of a side and the gear mesh of opposite side is offset, and vanishing shown in composite wave b is eliminated the oil spout pulsation, so can not transmitted towards periphery by the oil spout pulsation-induced vibration.
According to the theory of above explanation, be applied to the duplex gear pump 32 of present embodiment, realize low vibration low noise.
Below, the result of a measurement of the noise behind the present invention is implemented in publicity.
Example of the present invention is a refuse collector, and it uses oil pressure actuated system shown in Figure 1, adopts direct motor drive shown in Figure 9.As a comparison case, adopt 2 Comparative Examples 1,2.Comparative Examples 1,2 is to use the refuse collector of oil pressure actuated system shown in Figure 2, and wherein, this oil pressure actuated system adopts the simply connected gear type pump.Comparative Examples 1 adopts PTO shown in Figure 8 to drive, and Comparative Examples 2 adopts direct motor drive shown in Figure 9.Utilize the refuse collector of example of the present invention and Comparative Examples 1,2, carry out the loading action (working plate 2,3 is identical action) of the same terms, simultaneously,, utilize survey meter measurement noise value in the position of the rear of each refuse collector 5m.For example of the present invention and Comparative Examples 2, under the state that driving engine is stopped, measuring.Diagram of curves c shown in Fig. 6 is the noise-measuring result of example of the present invention, and diagram of curves d1 is the noise-measuring result of Comparative Examples 1, and diagram of curves d2 is the noise-measuring result of Comparative Examples 2.
From result of a measurement shown in Figure 6 as can be known, according to example of the present invention,, can confirm the reduction of level of noise with respect to Comparative Examples 1, the electric motor driven Comparative Examples 2 that PTO drives.Therefore, confirm to use the present invention to have the effect of low noiseization.
In addition, except contribution, also have the following advantages to noise problem.
Current, as the vibrationproof countermeasure of power fluid pipe arrangement and controller 37, in said fixing structure, vibration-proof rubber is installed, or as the substrate of controller 37 and the high rigidity of custom-made etc., the cost cost.This is in order to prevent to rupture or the misoperation of controller 37 and necessary.But, owing to making the vibration that is produced, the application of the invention reduces, so can simplify the vibrationproof countermeasure of current use, can reduce cost.
In the embodiment of the invention described above, used flow regulator 33 and oil return action oil circuit 43, but the invention is not restricted to use them and constitute, also can implement the present invention by in structure shown in Figure 2, using duplex gear pump as gear type pump 38.
Claims (3)
1. working truck, it has:
Gear type pump; And
Work machine, its utilization is driven by the power fluid of described gear type pump positive delivery,
Described gear type pump adopts the mode of power fluid being carried out positive delivery by the engagement rotation of the gear mesh that is made of intermeshing driven wheel and driven gear, have 2 pairs of described gear mesh, the pulsation of the power fluid positive delivery action of these 2 pairs of gear mesh is staggered each other
Described gear type pump carries out positive delivery to the power fluid in the power fluid petrol storage tank,
This working truck also has:
Valve, it is arranged in described gear type pump and the up working oil path that described Work machine links to each other; And
The downlink working oil circuit, it, is connected with described power fluid petrol storage tank from described up working oil path branch at described valve place,
Described valve, a part that makes power fluid is returned described power fluid petrol storage tank via described downlink working oil circuit.
2. working truck according to claim 1, it also has:
Flow regulator, it is arranged in the described up working oil path;
Oil return action oil circuit, it, is connected with described power fluid petrol storage tank from described up working oil path branch at described flow regulator place,
Described flow regulator, a part that makes power fluid is returned described power fluid petrol storage tank, so that the oil pressure in the described up working oil path is no more than specified value via described oil return action oil circuit.
3. working truck according to claim 1 and 2,
Has the described gear pump motor of driving.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2008110817A JP2009264109A (en) | 2008-04-22 | 2008-04-22 | Work vehicle |
| JP2008-110817 | 2008-04-22 | ||
| JP2008110817 | 2008-04-22 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101565011A true CN101565011A (en) | 2009-10-28 |
| CN101565011B CN101565011B (en) | 2011-07-27 |
Family
ID=41281440
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101339892A Active CN101565011B (en) | 2008-04-22 | 2009-04-22 | Work vehicle |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP2009264109A (en) |
| CN (1) | CN101565011B (en) |
| TW (1) | TW201002551A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102169528A (en) * | 2009-12-24 | 2011-08-31 | 宝理塑料株式会社 | Noise prediction method |
| CN105971873A (en) * | 2015-03-12 | 2016-09-28 | 株式会社昭和 | Pump apparatus and marine vessel propelling machine |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5496619B2 (en) * | 2009-11-24 | 2014-05-21 | 極東開発工業株式会社 | Garbage truck |
| JP6404151B2 (en) * | 2015-03-12 | 2018-10-10 | 株式会社ショーワ | Pump device and ship propulsion device |
| CN112389812A (en) * | 2020-11-09 | 2021-02-23 | 广西电网有限责任公司电力科学研究院 | Small oil storage device applied to on-site detection on-line chromatographic device |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5752695A (en) * | 1980-09-16 | 1982-03-29 | Toyo Umpanki Co Ltd | Fluid pressure pump |
| DE3227452A1 (en) * | 1981-08-03 | 1983-02-17 | Linde Ag, 6200 Wiesbaden | Control device for an adjustable hydrostatic unit |
| CN2211506Y (en) * | 1994-11-10 | 1995-11-01 | 青州液压件厂 | Improved two linkage gear pump |
| JP2005041647A (en) * | 2003-07-22 | 2005-02-17 | Fuji Heavy Ind Ltd | Refuse collecting vehicle |
| US7448460B2 (en) * | 2004-09-28 | 2008-11-11 | Oshkosh Corporation | Power takeoff for an electric vehicle |
-
2008
- 2008-04-22 JP JP2008110817A patent/JP2009264109A/en active Pending
-
2009
- 2009-04-21 TW TW98113128A patent/TW201002551A/en unknown
- 2009-04-22 CN CN2009101339892A patent/CN101565011B/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102169528A (en) * | 2009-12-24 | 2011-08-31 | 宝理塑料株式会社 | Noise prediction method |
| CN102169528B (en) * | 2009-12-24 | 2015-04-15 | 宝理塑料株式会社 | Noise prediction method |
| CN105971873A (en) * | 2015-03-12 | 2016-09-28 | 株式会社昭和 | Pump apparatus and marine vessel propelling machine |
Also Published As
| Publication number | Publication date |
|---|---|
| TW201002551A (en) | 2010-01-16 |
| CN101565011B (en) | 2011-07-27 |
| JP2009264109A (en) | 2009-11-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101565011B (en) | Work vehicle | |
| JP2003519595A5 (en) | ||
| WO2001051870B1 (en) | Hydraulic hybrid vehicle | |
| US8528674B2 (en) | Vacuum generation in hybrid-drive vehicles | |
| CN101873945A (en) | Drive arrangement with open loop hydraulic mechanism operable as a pump or a motor | |
| CN1927632A (en) | Hydraulic mixed power urban bus | |
| CN111236353A (en) | Novel energy-saving electric loader drive control system and control method | |
| CN102022303B (en) | Dual-driving oil pump and control system thereof | |
| CN105649967A (en) | Control system and method of electrical vehicle air compressor | |
| CN1861458A (en) | Power steering system | |
| CN201660020U (en) | Integral automobile rotator | |
| CN104214091A (en) | Oil suction device of vehicle | |
| CN201573528U (en) | Drive structure of pure electric environmental sanitation vehicle | |
| CN103318019A (en) | Work machine with compact generator hydraulic drive assembly | |
| CN1872576A (en) | Power set of car with mixed energy source | |
| CN101811437B (en) | Pure electrical automobile | |
| CN103847517A (en) | Special vehicle for transmission of mechanical-hydraulic composite transfer case | |
| CN208634287U (en) | A kind of endless-track vehicle power assembly | |
| CN202228296U (en) | Rotational speed induction type variable displacement constant flow pump | |
| CN201525289U (en) | Vehicle vibration energy saving device | |
| CN202320264U (en) | Parallel hydraulic retarder for adjusting gear engagement speed ratio | |
| US8505413B2 (en) | Hydraulic power output unit and hydraulic hybrid drive system including same | |
| CN201333919Y (en) | Tandem drive hydraulic mixed power driving device for buses | |
| CN207565337U (en) | A kind of automobile fork truck power taking system | |
| US8601806B1 (en) | Electric hydraulic motor system for large vehicles |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: SHINMAYWA INDUSTRIES, LTD. Free format text: FORMER NAME: FUJI JUKOGYO KABUSHIKI KAISHA |
|
| CP03 | Change of name, title or address |
Address after: Hyogo Patentee after: Shinmaywa Industries, Ltd. Address before: Tokyo, Japan Patentee before: Fuji Heavy Industries, Ltd. |