EP1837298A1 - Roue, en particulier roue porteuse ou roue de transport, en particulier pour des installations pour la production de carton ondulé - Google Patents

Roue, en particulier roue porteuse ou roue de transport, en particulier pour des installations pour la production de carton ondulé Download PDF

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Publication number
EP1837298A1
EP1837298A1 EP06016192A EP06016192A EP1837298A1 EP 1837298 A1 EP1837298 A1 EP 1837298A1 EP 06016192 A EP06016192 A EP 06016192A EP 06016192 A EP06016192 A EP 06016192A EP 1837298 A1 EP1837298 A1 EP 1837298A1
Authority
EP
European Patent Office
Prior art keywords
wheel
wheels
running
running surface
tread
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
EP06016192A
Other languages
German (de)
English (en)
Other versions
EP1837298B1 (fr
Inventor
Jörg Dipl.-Ing. oec. Thenhausen
Dirk Lange
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.)
Mollering Gummi- und Kunststofftechnik GmbH
Original Assignee
Mollering Gummi- und Kunststofftechnik GmbH
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 Mollering Gummi- und Kunststofftechnik GmbH filed Critical Mollering Gummi- und Kunststofftechnik GmbH
Publication of EP1837298A1 publication Critical patent/EP1837298A1/fr
Application granted granted Critical
Publication of EP1837298B1 publication Critical patent/EP1837298B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H27/00—Special constructions, e.g. surface features, of feed or guide rollers for webs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00—Parts for transporting or guiding the handled material
    • B65H2404/10—Rollers
    • B65H2404/11—Details of cross-section or profile
    • B65H2404/112—Means for varying cross-section
    • B65H2404/1122—Means for varying cross-section for rendering elastically deformable
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00—Parts for transporting or guiding the handled material
    • B65H2404/10—Rollers
    • B65H2404/11—Details of cross-section or profile
    • B65H2404/117—Details of cross-section or profile comprising hollow portions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00—Parts for transporting or guiding the handled material
    • B65H2404/10—Rollers
    • B65H2404/13—Details of longitudinal profile
    • B65H2404/131—Details of longitudinal profile shape
    • B65H2404/1314—Details of longitudinal profile shape convex
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00—Parts for transporting or guiding the handled material
    • B65H2404/10—Rollers
    • B65H2404/13—Details of longitudinal profile
    • B65H2404/132—Details of longitudinal profile arrangement of segments along axis
    • B65H2404/1321—Segments juxtaposed along axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/10—Handled articles or webs
    • B65H2701/17—Nature of material
    • B65H2701/176—Cardboard
    • B65H2701/1762—Corrugated

Definitions

  • the invention relates to a wheel, in particular running or transport wheel, in particular for corrugated board manufacturing plants.
  • Such a wheel, in particular running or transport wheel, in particular for corrugated board manufacturing facilities is by the DE 201 03 538 U1 is known and characterized by an outer rim with a tread and an inner part with a central through hole, wherein the rim and the inner part are connected by resilient-elastic, designed as lamellae spokes.
  • the two side wall surfaces (100a, 100b) are at a right angle to the wheel tread (11) and to form sharp circumferential edge regions (101, 102) (Fig. 11). It has been found that at high rotational speeds of the running or transport wheels of corrugated board manufacturing plants due to the plastic materials used for the production of the wheels, the individual wheels, especially in the lower region tilt (Fig.
  • the invention consists in that the two circumferential, the tread and the side wall surfaces of each wheel interconnecting edge regions are chamfered or arcuate, so that the colliding with the tread sidewall of each wheel at an angle greater than 90 ° to each other or is provided with a radius, preferably R15.
  • the contact lines of the running surface of each wheel, which collides with the side wall surfaces, are chamfered or provided with a radius according to a further embodiment, so that a chamfering or rounding of the peripheral edges is obtained.
  • the chamfer may also have an arcuate profile. Also, the two bevels of each wheel can go into an arcuate running surface.
  • the advantage achieved with the inventive design of the wheel is that even with a deformation of the existing plastic wheels during operation by lateral tilting or by an inclination of the wheel to its drive axle no sharp edges of each wheel more the cargo - here the Corrugated board - act on their surface and thus it can not lead to the formation of ruts on the surface of the corrugated board. Even at high speeds of rotation of the wheels occurs at an edge support of the wheel on the surface of the corrugated cardboard no more surface damage.
  • no plastic material is specified for the production of the wheels, so that plastics with a greater Shore hardness can be used.
  • corrugated boards are obtained with flawless surfaces that have no groove-shaped depressions.
  • the redesign of the wheels can reduce the slat width and change the angle of attack of the slats on changed plastic variants, eg. B. Vulkollan D15 be avoided with greater Shore hardness.
  • the advantage lies in further improved mechanical properties of the harder Volkollans compared to the previously used polyurethane material consisting of the components polyester polyol and TD isocyanate between 40 and 65 ° Shore A.
  • the wheel according to the invention is characterized by an outer rim with a resilient-elastic tread and an inner part with a central through hole, wherein the rim and the inner part are connected by resilient-elastic, designed as lamellae spokes in an angular position from the inner part to the rim arranged and arcuate, for the advance of sheet products, in particular for corrugated board production, wherein at least two wheels are combined to form a roll body, wherein the wheel consists of a molecular-highly crosslinked polyester polyol and TD isocyanate polyurethane material, that's a shore hardness A from 55 to 65, preferably from 58 to 62, has a continuous temperature capacity of up to 120 ° C and a low to no water vapor absorption capacity.
  • a design change allows the use of Vulkollan D15, preferably in 70 ° Shore A, to improve the mechanical strength, in particular by pressure and weight forces.
  • piercing the wheel is meant to be an opening substantially in the center of the wheel. This may have any suitable shape which is advantageous for convenient use, such as round, polygonal or conical, with the diameter of the bore preferably being 40 mm to 220 mm. This hole is used to receive the wheel on a drive shaft or for free-floating on a shaft.
  • the wheel due to its modified construction can also consist of an elastic homogen on the basis of polyester isocyanate addition, known under the trade name Vulkollan, which can be processed from 65 ° to 70 ° Shore A.
  • Vulkollan polyester isocyanate addition
  • the wheels usually have 50 ° to 60 ° Shore A due to the necessary flexibility.
  • the lamellar design As shown in the figures, with respect to the arrangement and position of the lamellae, their length and the particular shape having the intermediate spaces, which preferably have an approximately triangular shape.
  • the triangular shape is formed in the rectilinear lamellar design each between two fins and a part of the rim and the angles ⁇ , ⁇ and ⁇ includes.
  • the angle ⁇ is greater than 90 ° and the angle ⁇ is less than 90 °.
  • two lamellae and one part of the rim form the shape of an unequal triangle with a curved inwardly drawn base line and an arcuate outwardly extending side line.
  • the advantageous properties of the wheel are determined, which is characterized by high continuous temperature load capacity up to 120 ° C, low wear, high tear and tear strength of the lamellae due to increased to high degree of crosslinking of the elastic material, good grip and low to no water vapor absorption capacity of the polyurethane and improved mechanical Resilience when Vulkollan D15 distinguished.
  • Constant temperature capacity has the meaning of a long-term and continuous operation of the wheel, without significant wear is noticeable.
  • the material properties required for the specific application purposes can be set specifically during the production process by varying the individual components and process conditions, to achieve an optimal combination of wheel design and material properties.
  • the wheels are usually mounted by means of press fit on the shaft.
  • the inner diameter of the bore of the wheel is 65 mm and the shaft on which the wheel is mounted has a diameter of 67 mm to 68 mm.
  • a plastic bushing is incorporated in the inner diameter of the wheel. On this rifle, the wheel turns freely and "running" on the shaft.
  • the wheel can be made to any desired dimensions, with one wheel being preferred with an outer diameter at the tread of 100 mm to 340 mm, preferably a tread 140 mm to 240 mm, and / or a tread width of 20 mm to 80 mm or / and a lamella length, measured at the starting points of Radkranz or inner part, from 30 mm to 60 mm and / or a bore of 40 mm to 80 mm.
  • the tread may preferably roughened, grooved, grooved or / and be provided with a differently shaped profile; a smooth tread may have the wheel.
  • the wheel is made of a polyurethane material consisting of the components polyester polyol and TD isocyanate and produced using a special molecular crosslinking agent.
  • the polyester polyol used is a chemical compound having an alcohol group. Due to the high degree of crosslinking of the material, advantageous properties of the wheel are achieved, specifically with respect to elastic deformability, continuous temperature loadability, Tear strength, tear propagation resistance and water vapor absorption capacity. Due to the inventive design of the wheel Vulkollan D15 with a hardness from 65 ° Shore A can be used.
  • a further embodiment of the invention consists in a roller body, which is formed by at least two wheels, wherein the wheels can be combined to form a roll body or are used at a distance, wherein the distance between two wheels can correspond approximately to the wheel width.
  • Such a roller body has the advantage that it can be made in any width in a simple manner by additional wheels, extended and shortened. It is advantageous in contrast to conventional roller bodies that a much lower material usage is required. This results in significant cost savings. In addition, an air supply during operation is ensured by the space between the individual wheels, which provides for improved cooling.
  • the roller body is connected via its axis with a known drive means, such as an electric motor.
  • a known drive means such as an electric motor.
  • the wheels of the roller body are firmly connected to the axle.
  • Such an embodiment is used as a transport roller, wherein the wheels of the roller body are fixedly connected to the axle.
  • the roller body can also be designed as a running roller.
  • the wheels are arranged free-floating on an axis.
  • the locking on the axis can take place via a groove and a counterpart in the bore of the wheel or the axis or in which the bore is designed as a triangle or polygonal.
  • the axis is made in this case at the appropriate place as a counterpart.
  • the attachment can also be done via a conical mesh of wheel and axle.
  • the attachment of the wheel on the axle can additionally or exclusively by two laterally inserted on the wheel on the axis Plates are made, the z. B. are secured by screws on the axle and hold the wheel by means of pressing pressure so. Furthermore, the wheel can be held on the axle by means of interference fit.
  • the inner diameter of the bore in the wheel is slightly smaller than the outer diameter of the axle.
  • the invention further provides for the use of a wheel having the features of the claims or a roll body in a conveyor or corrugated cardboard manufacturing plant.
  • the subject matter of the invention is a corrugated board production and corrugated board processing plant which contains at least one wheel according to the invention and / or at least one roller body.
  • Such systems preferably have the wheels and / or roller bodies according to the invention as driven or freewheeling transport wheels or rollers.
  • the wheels and roller body can be used for all functions previously used by conventional wheels and roller body.
  • such a system consists of the usual Wellpappenher eins- and corrugated processing equipment and familiar to those skilled ingredients together, which therefore need not be explicitly mentioned here.
  • the wheels or roller bodies are either driven or arranged as revolving wheels or roller bodies. They serve to depress the paperboard and / or the paper webs and, when they are designed as transport wheels, cause advancement of the corrugated cardboard to be produced or produced.
  • the wheels and roller bodies according to the invention can be arranged against one another both on mating surfaces, such as support tables, and two or more such wheels and / or roller bodies.
  • the wheels according to the invention have a particularly well-tuned elasticity, in particular in the peripheral region, which is brought about by the special configuration described above and in the figures in relation to the mold according to the invention in combination with the material used.
  • This elasticity in particular caused by the lamellae of the individual wheels, is used to absorb shocks when entering the corrugated board.
  • the slats cause a kind of suspension, which is achieved by the special wheel design and the material used. So it is possible even at the very high speeds, which are driven again in corrugated board manufacturing plants, to ensure a gentle material transport and thereby reduce the wear of the wheels.
  • a polyurethane is used which is in particular highly crosslinked and which has a Shore hardness A between 55 and 65, preferably of 60 or by the Use of Vulkollan D15, preferably in 70 ° Shore A.
  • This achieves a high degree of flexibility.
  • the problem is that when driving corrugated board manufacturing plants at high speeds and high temperatures are generated.
  • the recipe and the specified parameters for the material of the wheel allows even in a prolonged continuous operation of the system that the temperatures occurring are collected, or at least the tearing is greatly delayed, without causing tearing of the fins in the wheels comes. Also, a material fatigue is delayed and reduced, which causes the wheels lose their shape and no longer turn round.
  • the temperature ranges are approximately between 70 ° C and 120 ° C.
  • the wheels and roll body with the wheels according to the invention hold in use a temperature load of up to 130 ° C, preferably up to 120 ° C. It has proven to be particularly advantageous when using the roller body that there is a gap between the wheels, which allows air to enter and additionally provides cooling. This special design of the slats in the wheels and their special orientation, the circulating air is set in motion and thus further improves the cooling.
  • the good long-term temperature endurance properties are advantageously achieved by the highly crosslinked polyurethane and Vulkollan D15 having 55 to 65, preferably 58 to 62 and most preferably 60 Shore A hardness. This makes it possible for the wheels to withstand high loads. However, the use of the plastic Vulkollan D15 is particularly advantageous.
  • the load capacity of the wheels in particular the slats, which have a long life by the design and despite continuous load not tear and it does not lead to a greatly delayed material fatigue.
  • the tear propagation resistance is obtained, in particular, by the particular molecular structure set according to the invention in the material.
  • Polyurethane is an increased, preferably high degree of crosslinking, through which the advantageous properties of the wheel are still improved.
  • the inventively designed tread of the wheel and its edge design allows the use of Vulkollan D15 for the production of the wheel, because the Vulkollan D15 has a significantly improved mechanical strength over a polyurethane material.
  • the outer diameter of the wheel 100 is z. B. 165 mm or 180 mm and the width of the tread 11 50 mm.
  • the angle ⁇ is about 120 °, the angle ⁇ is about 45 °.
  • the fins 15 have a length between the angle ⁇ and the angle ⁇ of about 37 mm and between the angle ⁇ and the angle ⁇ of about 48 mm, measured at the attachment points of the fins 15 on the rim 10 and the inner part 12th
  • the two peripheral edge portions 101, 102 interconnecting the tread 11 and side wall surfaces 100a, 100b of each wheel 100 are beveled or arcuate ( Figures 7 and 8) such that the side wall surfaces 100a, 100b of each colliding with the tread 11 Rades in the edge regions 101, 102 at an angle of greater than 90 ° or a radius R15 to each other ( Figures 10 and 10A).
  • the contact lines 103, 104; 103 ', 104' of the running surface 11 of each wheel 100 colliding with the side wall surfaces 100a, 100b are rounded, chamfered or chamfered, so that a chamfer 105 or rounding of the peripheral edge regions 101, 102 is obtained.
  • the bevel may thus have a straight or arcuate profile.
  • each wheel 100 merge into an arcuate running surface 108 (FIG. 9).
  • the wheel consists of a molecularly highly crosslinked polyester polyol and TD isocyanate existing polyurethane material having a Shore A hardness of 55 to 65, preferably from 58 to 62, a Treasuretemperaturbelastiana of up to 120 ° C and a low to none Has steam absorption capacity or Vulkollan D15, preferably in 65 ° to 75 ° Shore A hardness with identical chemical properties.
  • the wheel 100 is made of an elastic homopolymer based on the polyester isocyanate addition or Vulkollan D15 (trade name).
  • Fig. 2 shows a wheel 100, which is in operation in the direction 22 against a mating surface 20, z. B. a sub-table, moves and conveying material 21, z. B. corrugated cardboard, moved in the material feed direction 24.
  • Fig. 3 shows a wheel 100 in the operating state, which has an elastic deformation 25 by pressure in the printing direction 23, which is formed by the conveyed material, wherein the rim 10, the tread 11 and the fins 15 deformed in the pressure range by the meeting with conveying material are.
  • FIG. 4 shows a wheel 100 in the operating state, as in FIG. 3, which has been moved further in the wheel direction 22 in comparison to FIG.
  • FIG. 4 shows the typical for the wheel elastic deformation 25, which is achieved by the particular configuration of the spokes in lamellar shape and their orientation in the wheel direction 22 in interaction with the specially selected elastic material.
  • This material has on the one hand enough elasticity for a good suspension effect, on the other hand sufficient strength to the desired resistance opposite the conveying material for a desired feed. Through these features, the material propulsion can be adjusted as required.
  • FIG. 5 shows a roller body 300, which comprises a plurality of wheels 100 according to the invention on a shaft 30 (covered by wheels 100) in a section of a corrugated cardboard manufacturing plant 400.
  • a further embodiment of a wheel 100 'made of highly cross-linked elastic polyurethane or Vulkollan D15 with a rim 10' having on the outside a smooth or profiled tread 11 ', arcuate lamellae 15' and an inner part 12 'having a central round bore 13' is shown in Fig. 6 and 6A.
  • the fins 15 ' are arranged in an angular position from the inner part 12' to the rim 10 '.
  • Each two fins 15 'and a part of the rim 10' form the shape of an unequal triangle with a curved inwardly drawn in baseline and a curved outwardly extending sidelines.
  • the diameter of the wheel in a preferred embodiment is 165 mm or 180 mm with a lamella thickness of 3 mm to 4 mm.

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  • Tires In General (AREA)
  • Machines For Manufacturing Corrugated Board In Mechanical Paper-Making Processes (AREA)
EP20060016192 2006-03-23 2006-08-03 Roue, en particulier roue porteuse ou roue de transport, en particulier pour des installations pour la production de carton ondulé Not-in-force EP1837298B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE202006004783 2006-03-23

Publications (2)

Publication Number Publication Date
EP1837298A1 true EP1837298A1 (fr) 2007-09-26
EP1837298B1 EP1837298B1 (fr) 2009-02-18

Family

ID=37440963

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20060016192 Not-in-force EP1837298B1 (fr) 2006-03-23 2006-08-03 Roue, en particulier roue porteuse ou roue de transport, en particulier pour des installations pour la production de carton ondulé

Country Status (2)

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EP (1) EP1837298B1 (fr)
DE (1) DE502006002875D1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018015025A1 (fr) 2016-07-19 2018-01-25 Bobst Mex Sa Galet de guidage et dispositif de transport compremant plusieurs galets
US20190062083A1 (en) * 2017-08-23 2019-02-28 Seiko Epson Corporation Roller, separation device, image reading apparatus, and recording apparatus
WO2021050619A1 (fr) * 2019-09-13 2021-03-18 Sealed Air Corporation (Us) Rouleaux d'entraînement de matériau en feuille ayant des circonférences à profils courbés
WO2022191113A1 (fr) * 2021-03-08 2022-09-15 伊東電機株式会社 Rouleau de transport, dispositif de transporteur et dispositif de transporteur incliné
WO2024078639A1 (fr) * 2023-03-11 2024-04-18 曲阜信多达智能科技有限公司 Ensemble de nettoyage et appareil de nettoyage le comprenant

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1176512A (en) 1966-03-11 1970-01-07 Beloit Eastern Corp Paper guide and drive roller assemblies
US4425694A (en) * 1981-09-22 1984-01-17 Globe Rubber Works, Inc. Self-adjusting roller and method of use
JPS61206767A (ja) * 1985-03-08 1986-09-13 Isowa Ind Co 段ボ−ルシ−トの給紙ロ−ル
US4823689A (en) * 1986-03-18 1989-04-25 Canon Kabushiki Kaisha Elastic roller with internal openings for use with image forming apparatus
FR2778719A1 (fr) * 1998-05-13 1999-11-19 Courbis Synthese Sa Roues a basse pression dites a lamelles
DE20103538U1 (de) 2000-05-08 2001-06-28 Moellering Gummi Und Kunststof Rad, insbesondere Lauf- oder Transportrad, insbesondere für Wellpappenherstellungsanlagen
US20030193127A1 (en) * 2002-04-10 2003-10-16 Canon Kabushiki Kaisha Roller, sheet feed apparatus, and image forming apparatus
US20030218293A1 (en) * 2002-03-20 2003-11-27 Sho Mizuno Roller and sheet delivery unit

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1176512A (en) 1966-03-11 1970-01-07 Beloit Eastern Corp Paper guide and drive roller assemblies
US4425694A (en) * 1981-09-22 1984-01-17 Globe Rubber Works, Inc. Self-adjusting roller and method of use
JPS61206767A (ja) * 1985-03-08 1986-09-13 Isowa Ind Co 段ボ−ルシ−トの給紙ロ−ル
US4823689A (en) * 1986-03-18 1989-04-25 Canon Kabushiki Kaisha Elastic roller with internal openings for use with image forming apparatus
FR2778719A1 (fr) * 1998-05-13 1999-11-19 Courbis Synthese Sa Roues a basse pression dites a lamelles
DE20103538U1 (de) 2000-05-08 2001-06-28 Moellering Gummi Und Kunststof Rad, insbesondere Lauf- oder Transportrad, insbesondere für Wellpappenherstellungsanlagen
US20030218293A1 (en) * 2002-03-20 2003-11-27 Sho Mizuno Roller and sheet delivery unit
US20030193127A1 (en) * 2002-04-10 2003-10-16 Canon Kabushiki Kaisha Roller, sheet feed apparatus, and image forming apparatus

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018015025A1 (fr) 2016-07-19 2018-01-25 Bobst Mex Sa Galet de guidage et dispositif de transport compremant plusieurs galets
TWI639547B (zh) * 2016-07-19 2018-11-01 巴柏斯特麥克斯合資公司 導引滾輪與包含多個滾輪的輸送裝置
US11465869B2 (en) 2016-07-19 2022-10-11 Bobst Mex Sa Guide roller and transport device comprising several rollers
US20190062083A1 (en) * 2017-08-23 2019-02-28 Seiko Epson Corporation Roller, separation device, image reading apparatus, and recording apparatus
US10822187B2 (en) * 2017-08-23 2020-11-03 Seiko Epson Corporation Roller, separation device, image reading apparatus, and recording apparatus
WO2021050619A1 (fr) * 2019-09-13 2021-03-18 Sealed Air Corporation (Us) Rouleaux d'entraînement de matériau en feuille ayant des circonférences à profils courbés
WO2022191113A1 (fr) * 2021-03-08 2022-09-15 伊東電機株式会社 Rouleau de transport, dispositif de transporteur et dispositif de transporteur incliné
WO2024078639A1 (fr) * 2023-03-11 2024-04-18 曲阜信多达智能科技有限公司 Ensemble de nettoyage et appareil de nettoyage le comprenant

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Publication number Publication date
EP1837298B1 (fr) 2009-02-18
DE502006002875D1 (de) 2009-04-02

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