EP0290877A2 - Dispositif de reprise automatique de récipients vides - Google Patents

Dispositif de reprise automatique de récipients vides Download PDF

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Publication number
EP0290877A2
EP0290877A2 EP88106815A EP88106815A EP0290877A2 EP 0290877 A2 EP0290877 A2 EP 0290877A2 EP 88106815 A EP88106815 A EP 88106815A EP 88106815 A EP88106815 A EP 88106815A EP 0290877 A2 EP0290877 A2 EP 0290877A2
Authority
EP
European Patent Office
Prior art keywords
lifting unit
box
transport device
transport
sensor
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
Application number
EP88106815A
Other languages
German (de)
English (en)
Other versions
EP0290877B1 (fr
EP0290877A3 (en
Inventor
Dieter Schmid
Peter Dipl.-Ing. Kasberger (Fh)
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.)
Elektromechanische Geraetebau Te Mammendorf GmbH
Original Assignee
LESCHA MASCHINENFABRIK GmbH
Lescha Maschinenfabrik GmbH and Co KG
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 LESCHA MASCHINENFABRIK GmbH, Lescha Maschinenfabrik GmbH and Co KG filed Critical LESCHA MASCHINENFABRIK GmbH
Priority to AT88106815T priority Critical patent/ATE85538T1/de
Publication of EP0290877A2 publication Critical patent/EP0290877A2/fr
Publication of EP0290877A3 publication Critical patent/EP0290877A3/de
Application granted granted Critical
Publication of EP0290877B1 publication Critical patent/EP0290877B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
    • B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
    • B07C5/04—Sorting according to size
    • B07C5/12—Sorting according to size characterised by the application to particular articles, not otherwise provided for

Definitions

  • the invention relates to a device for the mechanical return of empties, in particular bottle crates with and without deposit bottles, with at least one conveyor device which delimits a conveyor channel downwards and which leads past a scanning device.
  • both the crate and the bottles it contains are normally to be paid for. He is therefore required to identify the box and pay for the contents of the box moderate to record and classify.
  • the scanning device contains a lifting head which can be raised and lowered by means of a lifting unit which can be actuated as a function of an object which can be transported past by means of the transport device and which interacts with a measuring device which detects its stroke.
  • a lifting unit which can be actuated as a function of an object which can be transported past by means of the transport device and which interacts with a measuring device which detects its stroke.
  • the pushbuttons as optical pushbuttons in the form of reflection light switches which supply signals which can be processed in a simple manner.
  • Another, very special advantage of the inventive tracking of the probe is to be seen in the fact that it can also be used to simultaneously determine the box height, which, together with the box width that can be determined simultaneously by means of the alignment device according to the invention and the throughput time, is easy derivable box length enables a reliable identification of the box.
  • the upper starting position of the lifting unit can be defined by an upper stop arranged fixed to the frame, preferably as an upper stop which can be scanned by means of a light barrier accommodated on the lifting unit.
  • the stroke of the lifting unit at the lower stop point can advantageously be terminated by a height sensor, preferably also in the form of a light barrier, which senses the upper edge of the object being passed.
  • two height-offset light barriers can be accommodated on the lifting unit, of which the lower height sensor, which scans the top edge of the box, and the upper one are designed as detection sensors for objects projecting beyond the top edge of the box, and preferably as detection sensors assigned to the upper stop.
  • a lower stop which is also preferably in the form of a screen which can be scanned by means of a light barrier and which limits the maximum stroke of the lifting unit at the bottom. This ensures that the probe is stopped in the event of a faulty activation of the lifting unit when the lower stop is reached, so that collisions with other modules can be excluded.
  • the lifting unit can in the region of both sides of the transport device in each case one, preferably with one, running over at least one drive-capable deflection member
  • a counterweight provided with a tension element which engages on a carrier, preferably in the form of a side bearing plate, which is accommodated on a guide device which is preferably embodied as a parallelogram and which is assigned to the probe.
  • the measuring device assigned to the lifting device can be driven together with the lifting device, for. B. designed as a perforated disc incremental disc, which can be scanned by means of an associated sensor, which can preferably be activated and deactivated by the light barriers accommodated on the lifting unit.
  • the lifting unit and the alignment device can be activated by means of a length sensor which is preferably designed as a light barrier spanning the transport plane and which preferably simultaneously stops the transport device until the alignment process is completed.
  • the aligning device can have at least one slide arranged above the transport device, preferably designed as part of a lateral channel boundary, which can be moved transversely to the transport direction by means of a cross-stroke unit which is preferably arranged below the transport device, with the cross-stroke unit also advantageously being used as a Perforated disk designed incremental disk can be driven, which is scanned by means of an associated sensor.
  • an incremental disk that can be driven together with the section of the transport device that passes under the probe head can be provided, which is scanned by means of an associated sensor that can be activated or passivated by means of a sensor that is preferably designed as a light barrier arranged above the transport device.
  • the empties receiving machine on which FIG. 1 is based contains a crate acceptance station 1 and a bottle acceptance station 2. These two stations are located one above the other on levels, with the crate acceptance station 1 forming the lower level and the bottle acceptance station 2 forming the upper level.
  • the machine frame of the empties acceptance machine shown consists of portal-like frames 3 which are connected to one another by horizontal rails 4. On these rails, drawer-like inserts are provided to form the box acceptance station 1 or bottle acceptance station 2.
  • the bottle receiving station 2 comprises a passageway 5 starting from a front-side input window, which is delimited at the bottom by two conveyor belts 6 which are laterally offset from one another, through which the bottles placed are drawn in, aligned in a row and guided past bottle scanning devices 7.
  • the box acceptance station 1 also comprises a flow channel 8 starting from a front-side input window, which is laterally delimited by baffles 9 and is underpinned by a transport device 10 which, at scanning devices to be described in more detail below, for identifying the boxes entered and for recognizing the degree of filling thereof Guide the boxes past.
  • the transport level of the transport device 10 is located somewhat below the lower edge of the front input window, so that a security level is obtained.
  • the transport device 10 of the box acceptance station 1 consists, as can best be seen from FIG. 2, of two sections 10a, 10b arranged one behind the other, which are driven at different speeds.
  • the front section 10b in the transport direction is driven faster than the rear section 10a in the transport direction, so that successive boxes are pulled apart.
  • the rear, slower section 10a in the direction of transport contains a longitudinal conveyor belt 11 which transports over a table. This results in a particularly low accident risk in the input area.
  • the front section 10b is designed as a roller conveyor with a plurality of rollers 12 arranged one behind the other, each of which is driven.
  • rollers 12 are provided with lateral sprockets 13 which are in engagement with a chain 14 which extends over all sprockets 13 and is driven by means of a drive unit 15.
  • a hold-down bar 16 can be provided which at least goes beyond the chain wheels which are only tangent to the chain.
  • the boxes acceptable by the box acceptance station 1 are identified by measuring their length, height and width.
  • a probe 17 which can best be seen in FIGS. 3 and 4 and which extends over the conveying device 10, is provided, which contains a plurality of buttons 18 arranged next to one another in the form of a row arranged transversely to the transport direction.
  • This is Reflection light switches that emit a beam of light and determine whether a reflected beam is coming back or not. A reflected beam comes back if the emitted light beam hits a reflective, flat surface within a fixed measuring range. This can be, for example, the upper end faces of the necks of bottles 20 contained in a box 19 transported under the probe 17.
  • the reflection light switches forming the buttons 18 generate a continuous signal when a reflection beam occurs. To facilitate signal processing, this can be queried at fixed intervals which are dependent on the speed of the transport device 10. This results in signal points that occur depending on the existing compartment division 21 in box 19 according to a certain grid.
  • the query steps can easily be specified by an incremental disk 22 shown in FIG. 2, which can be driven together with the chain 14 and is designed here as a perforated disk, which is scanned by means of an associated sensor 23.
  • a grid corresponding to the compartment division 21 of this box is placed on a signal point field thus obtained, which automatically results in the degree of filling of the box.
  • Each grid compartment, which contains at least one signal point, corresponds practically to a compartment of the box 19 filled with a bottle 20.
  • This evaluation is carried out in a computer, not shown in the drawing, which uses a printer to print out the deposit value of the returned empty packaging may be connected.
  • the entire measuring head 17 is adjusted perpendicular to the transport plane in accordance with the respective height of the box 19 which is just passing through.
  • a lifting unit 22 is assigned to the probe head 17, which, as shown in FIGS.
  • the probe 17 is readjusted from one upper starting position as each box passes through.
  • This upper starting position is defined by a stop fixed to the frame.
  • this is a diaphragm 30 which is fixed to the frame and is optically scanned by a light barrier 31 connected to the probe head 17.
  • the lifting unit 22 is activated.
  • the lifting unit 22 is activated via a light barrier 32 spanning the transport device 10 as soon as its light beam is interrupted by the box 19 passing by.
  • the activation of the lifting unit 22 is terminated as soon as the light barrier 31 accommodated on the lifting unit 22 or an adjacent light barrier 33, which is offset in terms of its height and which is further offset on the lifting unit 22, reaches the upper edge of the box 19.
  • a lower cover 34 arranged fixed to the frame is also provided to limit the maximum stroke of the lifting unit 22.
  • bearing plates 35 are provided on the slides 28, which protrude from the probe 17 against the transport direction of the transport device 10, that is to say are arranged upstream of the probe 17.
  • the means of the light barriers 31, 33 controlled tracking of the probe 17 already ended when the box 19 arrives under the probe 17.
  • the logical connection of the light barriers 31 and 33 can be done for security reasons so that the lowered probe 17 remains in position as long as only the lower, the upper box edge scanning light barrier 33 is interrupted and the upper, the aperture 30 associated light barrier 31 is not interrupted. If a box 19 contains a protruding object, for example in the form of an oversized bottle 20a, this inevitably also leads to an interruption of the light barrier 31, as can be seen from FIG. 4. In such a case, the transport device 10 can be stopped or reversed and / or the probe 17 can be raised in order to avoid collisions with the excessively long bottle 20a. Accordingly, such a box is either ejected again or accepted without registration and accordingly without a deposit.
  • the stroke of the lifting unit 22 is used to measure the height of the box 19.
  • the measuring device provided for this purpose contains an incremental disk 36 which can be driven with the lifting unit 22 and is designed as a perforated disk and which is scanned by means of an associated sensor 37. This is controlled by means of the light barriers 31 and 33 received on the lifting unit 22 such that the counting process begins as soon as the diaphragm 30 and the light barrier 31 is released and terminated as soon as the lower light barrier 33 is interrupted by the upper edge of the box 19.
  • the incremental disk 36 is received on the shaft 25. This usually results in a sufficient number of revolutions for a reliable resolution of the stroke of the lifting unit 22.
  • the incremental disk 22 driven together with the chain 14 is used, i.e. the pulses picked up by the associated sensor 23 are counted as long as the box 19 passes the light barrier 32 arranged transversely to the transport direction, that is, as long as the light barrier 32 is interrupted. Accordingly, the sensor 23 is turned on and off by the light barrier 32. It would also be conceivable to detect the box length by means of the probe 17.
  • the direct scanning of the incremental disk 22 results in one Simplification of the calculation process when recording the degree of filling. Since all the rollers 12 of the roller conveyor forming the section 10b of the transport device are driven by means of the chain 14, reliable, practically slip-free driving of the box 19 is ensured, which ensures a high accuracy of the length measurement. To achieve a particularly reliable box transport, the rollers 12 can be rubberized.
  • the probe head 17 is aligned with respect to the longitudinal plane m of the transport device 10, that is to say the row of probes received on the probe head 17 is constructed symmetrically to the central longitudinal plane m.
  • the boxes 19 transported by the transport device 10 are accordingly aligned before they enter the effective area of the probe 17, that is to say symmetrically to the central longitudinal plane m.
  • an alignment device 38 is provided, which, as FIG. 3 clearly shows, contains two mutually opposite sliders 39 which overlap the transport device 10 and which can be designed as sections of the lateral boundaries 9 of the flow channel 8 which can be moved transversely to the transport direction.
  • the sliders 39 are fastened to arms 40 which extend between two rollers 12 and are received on an associated transverse lifting unit 41 arranged below the transport device 10.
  • each transverse stroke unit 41 comprises 2 shafts 42 which extend in the transport direction and which are provided at their ends with chain wheels 43, over which chains 44 which engage the arms 40 of the sliders 39 run.
  • a drive motor 45 is provided which is coupled to one of the shafts 42, which is connected to an adjacent shaft of the respective other transverse stroke unit by means of a spur gear train 46, which ensures exact counter-rotation.
  • the shafts 42 are mounted on cross bars 48 fastened to the longitudinal bars 47 of the section 10 b of the transport device 10.
  • the alignment device 38 is activated together with the activation of the lifting unit 22 by means of the same light barrier 32. If it should be advisable in individual cases to shut down the transport device 10 while the alignment device 38 is operating, this is readily possible.
  • the transport device 10 can be passivated by means of the light barrier 32 which activates the alignment device 38. After the box has been aligned, that is to say when the transverse lifting units 41 no longer move, the transport device 10 is restarted in this case.
  • the stroke of the transverse lifting bag units 41 is used to measure the width of the box 19.
  • an incremental disk 49 which can be driven together with the transverse lifting units 41, is provided, which, as can best be seen in FIG. 6, can be designed as a perforated disk to which a sensor 50 is assigned.
  • the starting position the cross-stroke unit 41 is defined by a light barrier 51 which is fixed to the frame and which scans an associated aperture 52 fastened to an adjacent chain 44.
  • the counting of the pulses picked up by the sensor 50 begins as soon as the light barrier 51 is released.
  • the incremental disk 49 can, as indicated by solid lines in FIG. 5, be received on one of the shafts 42 which can be driven by the motor 45.
  • the number of revolutions of the incremental disk 49 corresponds to the number of revolutions of the chain wheels 43, which generally results in a sufficiently good resolution of the measuring range.
  • the clutch 53 arranged between the motor 45 and the shaft 42 coupled to it can be designed as a slip clutch so that the motor 45 can spin after alignment.
  • a reduction gear 54 is provided between clutch 53 and motor 45.
  • the incremental disk could simply be arranged upstream of the reduction gear 54, as indicated by broken lines at 49 in FIG.
  • the clutch 54 would have to be a fixed clutch, so that the motor 45 cannot turn after alignment and, accordingly, the associated incremental disk 49a also stands still.
  • the dimensions resulting from the length, width and height measurement are used, as already indicated above, to identify the box 19. For this purpose, all common box sizes are in one computer saved.
  • the identification of the box 19 now not only enables repayment of the box deposit, but also enables the selection of the compartment grid belonging to the present box, which can also be stored in the computer.
  • This grid together with the information provided by the probe 17, allows the degree of filling of the crate to be determined, that is, the answer to the question of whether and if so how many bottles 20 the crate 19 contains and how many bottles 20 are to be remunerated in addition to the crate 19.
  • the total remuneration can be paid either in cash or in the form of a printed voucher.
  • the probe 17 is not rigidly arranged, but moves to the top of the box, also ensures that the filling of the box can also be classified, i. H. it can also be seen whether the bottles in the box belong to this box or whether they are too high or too low. In the event that the existing bottles are too high or too low, the computer can be programmed so that nothing is remunerated and the entire box is thus lost.
  • FIG. 7 shows a variant of the lifting unit 22 assigned to the probe head 17, in which the lowering takes place by utilizing the gravity of the probe head 17.
  • the key Head 17 is provided in the present embodiment with two lateral, the two superimposed light barriers 31, 33 receiving end plates 35. Both end shields 35 are accommodated on two parallel rockers 55 in order to achieve reliable guidance. These are supported on the one hand on the machine frame and on the other hand on the respectively associated end plate 35, so that there is practically a parallelogram guide.
  • the chains 23a are designed as finite chains, each of which is placed on an associated sprocket 24a arranged above the stroke range of the probe 17 and the downward-hanging ends of which are attached to an associated end plate 35 or counterweight 56.
  • the sprockets 24a are received on a shaft 25 which is continuous over the width of the conveying channel and which is connected directly or, as in the exemplary embodiment shown, indirectly via a chain 26 to a drive device which can contain a geared motor 57.
  • the stroke of the probe 17 starting from an upper stop 30 is detected by an incremental disk which can be driven together with the lifting unit 22 and which can either be accommodated on the shaft 25, as indicated at 36, or to achieve a large angle of rotation and thus a high one Accuracy of the gearbox of the gearbox Motors 57 can be arranged, as indicated at 36a.
  • the variant of the box alignment device on which FIG. 8 is based like the alignment device on which FIGS. 3 and 5 are based, has two slides 39 working symmetrically to the central longitudinal plane m of the flow channel, here in the form of rods immersed in niches provided in the area of the lateral channel boundaries. These are accommodated on respectively assigned swivel arms 58, which are pivotably mounted with their lower ends on the crossbeams 48a which reach under the transport device. To actuate the swivel arms 58, a geared motor 45 is provided with its axis in the region of the central longitudinal plane m, on the output shaft of which a two-armed lever 59 is wedged.
  • the two-armed lever 59 engages with its mutually opposite ends on the mutually opposite heavy arms 58.
  • intermediate connecting rods 60 are provided for this. Since the opposite ends of the two-armed lever 59 are practically opposed, the desired reciprocity of the swivel arms 58 also results.
  • the starting position of the swivel arms 58 indicated by solid lines in FIG. 8 and accordingly the slide 39 is defined by stops 61 fixed to the frame. In the alignment position indicated by dashed lines in FIG. 8, both opposing slides 39 lie tight against the centrally aligned box 19. The resulting distance between the opposing slides 39 corresponds to the width of the box 19.
  • the swivel angle of the swivel arms 58 is detected, for which purpose the incremental disk 49, which can be driven together with the swivel arms 58 and can be scanned by an associated sensor 50, is used, which can also be arranged upstream of the gearbox of the geared motor 45 in order to achieve a large angle of rotation and thus high accuracy.

Landscapes

  • Vending Machines For Individual Products (AREA)
  • Attitude Control For Articles On Conveyors (AREA)
  • Control Of Vending Devices And Auxiliary Devices For Vending Devices (AREA)
  • Branching, Merging, And Special Transfer Between Conveyors (AREA)
  • Sorting Of Articles (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Sink And Installation For Waste Water (AREA)
EP88106815A 1987-05-12 1988-04-27 Dispositif de reprise automatique de récipients vides Expired - Lifetime EP0290877B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88106815T ATE85538T1 (de) 1987-05-12 1988-04-27 Vorrichtung zur maschinellen ruecknahme von leergut.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3715816 1987-05-12
DE3715816 1987-05-12

Publications (3)

Publication Number Publication Date
EP0290877A2 true EP0290877A2 (fr) 1988-11-17
EP0290877A3 EP0290877A3 (en) 1989-11-23
EP0290877B1 EP0290877B1 (fr) 1993-02-10

Family

ID=6327359

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88106815A Expired - Lifetime EP0290877B1 (fr) 1987-05-12 1988-04-27 Dispositif de reprise automatique de récipients vides

Country Status (5)

Country Link
US (1) US4843230A (fr)
EP (1) EP0290877B1 (fr)
AT (1) ATE85538T1 (fr)
DE (1) DE3878302D1 (fr)
NO (1) NO169939C (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4214250A1 (de) * 1992-04-30 1993-11-04 Trautwein Sb Technik Gmbh Leerflaschenruecknahmegeraet
US5484062A (en) * 1993-01-22 1996-01-16 Technology Handlers, Inc. Article stack handler/sorter
DE29609410U1 (de) * 1996-05-25 1996-08-14 Kern, Michael, 91301 Forchheim Rücknahmestation für Mehrwegbehälter
DE102008052330A1 (de) * 2008-10-20 2010-06-17 Envipco Holding N.V. Verfahren und Transporteinrichtung zur Rücknahme von Leergut, insbesondere von Flaschen und Dosen
CN113617686A (zh) * 2021-08-13 2021-11-09 广州市稳建工程检测有限公司 一种装配式钢筋混凝土组合体结构性能检测装置及方法

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19640117C2 (de) * 1996-09-28 2003-09-18 Em Geraetebau Ruecknahmesystem Vorrichtung zur maschinellen Zurücknahme von Tabletts
US8446247B2 (en) * 2009-10-21 2013-05-21 J&L Group International, Llc Safety system
CN114955486B (zh) * 2022-08-01 2022-09-30 徐州考拉机器人科技有限公司 一种人工交互智能物流分拣设备

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2645024A1 (de) * 1975-10-16 1977-04-21 Platmanufaktur Ab Abnehmer fuer in lagerungsorganen untergebrachte artikel
US4171051A (en) * 1977-01-04 1979-10-16 Wullenwaber Robert W Apparatus for serially transporting, testing and orienting cylindrical components
US4253573A (en) * 1979-08-03 1981-03-03 The Mead Corporation Apparatus for handling empty beverage containers
FR2545010A1 (fr) * 1983-04-29 1984-11-02 Darlay Electronique Appareillage pour la classification des carcasses
EP0174549A1 (fr) * 1984-08-29 1986-03-19 Halton Oy Dispositif pour identifier et enregistrer des bouteilles et/ou des caisses de bouteilles

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4731649A (en) * 1986-09-11 1988-03-15 Vistech Corp. Oblique illumination for video rim inspection

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2645024A1 (de) * 1975-10-16 1977-04-21 Platmanufaktur Ab Abnehmer fuer in lagerungsorganen untergebrachte artikel
US4171051A (en) * 1977-01-04 1979-10-16 Wullenwaber Robert W Apparatus for serially transporting, testing and orienting cylindrical components
US4253573A (en) * 1979-08-03 1981-03-03 The Mead Corporation Apparatus for handling empty beverage containers
FR2545010A1 (fr) * 1983-04-29 1984-11-02 Darlay Electronique Appareillage pour la classification des carcasses
EP0174549A1 (fr) * 1984-08-29 1986-03-19 Halton Oy Dispositif pour identifier et enregistrer des bouteilles et/ou des caisses de bouteilles

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4214250A1 (de) * 1992-04-30 1993-11-04 Trautwein Sb Technik Gmbh Leerflaschenruecknahmegeraet
US5484062A (en) * 1993-01-22 1996-01-16 Technology Handlers, Inc. Article stack handler/sorter
DE29609410U1 (de) * 1996-05-25 1996-08-14 Kern, Michael, 91301 Forchheim Rücknahmestation für Mehrwegbehälter
DE102008052330A1 (de) * 2008-10-20 2010-06-17 Envipco Holding N.V. Verfahren und Transporteinrichtung zur Rücknahme von Leergut, insbesondere von Flaschen und Dosen
US9010519B2 (en) 2008-10-20 2015-04-21 Envipco Holding N.V. Method and conveyor device for returning empties, in particular bottles and cans
CN113617686A (zh) * 2021-08-13 2021-11-09 广州市稳建工程检测有限公司 一种装配式钢筋混凝土组合体结构性能检测装置及方法

Also Published As

Publication number Publication date
NO169939B (no) 1992-05-18
EP0290877B1 (fr) 1993-02-10
US4843230A (en) 1989-06-27
ATE85538T1 (de) 1993-02-15
NO169939C (no) 1992-08-26
NO882073D0 (no) 1988-05-11
DE3878302D1 (de) 1993-03-25
NO882073L (no) 1988-11-14
EP0290877A3 (en) 1989-11-23

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