DK168901B1

DK168901B1 - Mechanism for roller sign

Info

Publication number: DK168901B1
Application number: DK6091A
Authority: DK
Inventors: Jan Boie Pedersen
Original assignee: Innovision As
Priority date: 1990-10-15
Filing date: 1991-01-11
Publication date: 1994-07-04
Also published as: DK6091A; DK6091D0

Description

DK 168901 B1DK 168901 B1

Teknikkens standpunktThe prior art

Opfindelsen angår en mekanisme til et rulleskilt af den i krav l's indledning angivne art.BACKGROUND OF THE INVENTION The present invention relates to a roller sign mechanism of the kind set forth in claim 1.

5 Sådanne rulleskilte kendes i forskellige udformninger, enten rent manuelle, hvor man med et håndtag betjener rullerne og indstiller skiltet, eller hvor rullerne er motordrevne, f.eks. via elektromotorer. Det rent mekaniske skilt 10 har den store ulempe, at det kræver en person til at indstille skiltet, hver gang en ændring skal foretages, og derfor skal der være adgang til skiltets indstillingsmekanisme. De kendte motordrevne rulleskilte har den store u-lempe, at drivmotoreme og drivforbindelserne herfra til 15 rullerne kræver plads i skiltet, og dette får ofte et uacceptabelt volumen. Ved begge typer rulleskilte er det i øvrigt et generelt problem at kunne holde skiltedugen passende stram, både når skiltet er indstillet og under selve indstillingen af skiltet.Such roller plates are known in various designs, either purely manual, where the rollers operate and adjust the plate with a handle, or where the rollers are motor driven, e.g. via electric motors. The purely mechanical sign 10 has the great disadvantage that it requires a person to adjust the sign every time a change is to be made and therefore the sign adjustment mechanism must be available. The known motor driven roller plates have the great disadvantage that the drive motors and their drive connections to the 15 rollers require space in the plate, and this often gets an unacceptable volume. In both types of roller signs, it is also a general problem to be able to keep the sign cloth properly tight, both when the sign is set and during the alignment of the sign itself.

2020

Fra fransk patentskrift nr. 2.571.167 kendes en mekanisme af den i krav l's indledning angivne art, hvor de to ruller ved hjælp af drivremme er koblet til et gear og en fælles drivmotor, alt anbragt i forlængelse af rullerne. Fjedrenes 25 opgave er alene at sikre en stram skiltedug, idet de to ruller jo er koblet mekanisk sammen via gearet. En sådan konstruktion fylder meget og kræver en forholdsvis stor drivmotor. Kabinettet omkring et sådant skilt bliver uforholdsmæssigt stort, og flere skilte kan ikke anbringes ved 30 siden af hinanden uden afstand mellem skiltefladerne.From French Patent Specification No. 2,571,167, a mechanism of the kind specified in the preamble of claim 1 is known in which the two rollers are connected by means of drive belts to a gear and a common drive motor, all arranged in extension of the rollers. The task of the springs 25 is solely to secure a tight manifold, since the two rollers are mechanically coupled together via the gear. Such a construction is very filling and requires a relatively large drive motor. The enclosure around such a sign becomes disproportionately large, and several signs cannot be placed side by side without distance between the sign surfaces.

Fra USA patentskrift nr. 4.766.941 kendes en mekanisme til et motordrevet rullegardin omfattende to cylindre for rullegardinet. Rullerne er anbragt øverst og nederst i et vin-35 due. Gardinfolien er fastgjort til cylinderne og kan overføres ved motordreven rotation. Hver af cylinderne er hule 2 DK 168901 B1 og begge omfatter en drivmotor og et fjederelement, hvis funktion alene er at stramme folien. Elektromotoren er via fjederelementet i indgreb med cylinderen og trækker denne rundt i den ønskede retning. En sådan konstruktion er ikke 5 indrettet til, og kan heller ikke, opretholde en blot nogenlunde konstant trækspænding for et stort omdrejningstal, samtidig med at fjedrene skal være med til at etablere rullegardinets drift i begge retninger. Dette er heller ikke nødvendigt til et rullegardin.From United States Patent No. 4,766,941, a mechanism for a motorized roller blind comprising two cylinders for the roller blind is known. The rollers are placed at the top and bottom of a wine pigeon. The curtain foil is attached to the cylinders and can be transferred by motor-driven rotation. Each of the cylinders is hollow 2 and both comprise a drive motor and a spring element whose function alone is to tighten the foil. The electric motor engages the cylinder via the spring element and pulls it in the desired direction. Such a structure is not designed for, nor can it maintain, a simple reasonably constant tensile stress for a large number of rpm, while the springs must assist in establishing the operation of the roller in both directions. This is also not necessary for a roller blind.

1010

Fordele ved opfindelsenAdvantages of the invention

Ved at udforme mekanismen ifølge opfindelsen med de i krav l's kendetegnende del angivne træk, opnår man, at hele me-15 kanismen til sikring af en passende spænding i skiltedugen, inklusive drivmotoren til manøvrering af skiltet, er anbragt inde i de to ruller, og selv med en meget lang skiltedug, f.eks. af størrelsesordenen 25 oprulninger på hver rulle, d.v.s. ialt ca. 50 oprulninger, fås der passende, 20 ensartede træk i dugen, både under indstilling af mekanismen og under pauser, og dette opnås helt fra skiltedugens ene ende til den anden.By designing the mechanism according to the invention with the features specified in the characterizing part of claim 1, it is achieved that the entire mechanism for securing a suitable voltage in the sign cloth, including the sign motor drive motor, is arranged within the two rollers, and even with a very long sign, e.g. of the order of 25 roll-ups on each roll, i.e. total approx. 50 roll-ups, there are suitable, 20 uniform features in the tablecloth, both during the setting of the mechanism and during breaks, and this is achieved completely from one end of the signboard to the other.

Yderligere fås stor pladsbesparelse, når drivmotoren er an-25 bragt inde i en af rullerne. Det er tilstrækkeligt med en drivmotor i én af rullerne, idet den i fjederne lagrede energi sikrer hurtigt og ensartet skilteskift. Den i hver rulle anbragte fjeder har således to funktioner. For det første er den med til at sikre konstant spænding i skilte-30 dugen og er for det andet med til at etablere skiltets drift i begge retninger, idet der under rotation af rullerne kontinuerligt sker en udveksling af energi mellem elektromotoren og de to fjedre via skiltedugen, således at der opnås en ensartet drift af skiltedugen helt fra den ene 35 ende af denne til den anden.Furthermore, great space saving is obtained when the drive motor is placed inside one of the rollers. A drive motor in one of the rollers is sufficient, since the energy stored in the springs ensures quick and uniform signage change. The spring placed in each roll thus has two functions. Firstly, it helps to ensure constant tension in the signboard and secondly, to establish the operation of the sign in both directions, since during rotation of the rollers there is a continuous exchange of energy between the electric motor and the two springs via the sign cloth so that a uniform operation of the sign cloth is achieved from one end thereof to the other.

DK 168901 B1 3DK 168901 B1 3

Skilte udformet med mekanismen ifølge opfindelsen kan anbringes ved siden af hinanden i det væsentlige uden afstand mellem skiltefladerne.Signs formed by the mechanism according to the invention can be placed adjacent to each other substantially without distance between the sign surfaces.

5 For at få tilstrækkelig trækkraft fra en forholdsvis lille elektromotor anbragt inde i rullen og for at få passende omløbstal på rullerne under skilteskift, er motoren koblet til rullerne via et gearsystem som angivet i krav 2's kendetegnende. del.5 In order to obtain sufficient traction from a relatively small electric motor positioned within the roller and to obtain suitable circulation figures on the rollers during sign change, the motor is coupled to the rollers via a gear system as defined in claim 2. share.

1010

Ved yderligere at udforme mekanismen ifølge opfindelsen som angivet i krav 3' s kendetegnende del reduceres pladskravet yderligere, idet også gearmekanismen er anbragt inde i en af rullerne, nemlig i den rulle, hvor drivmotoren er an-15 bragt. Hele drivmekanismen er således anbragt indvendig i de ruller, der bærer skiltedugen, og drivmekansmen med elektromotoren er fortrinsvis anbragt på den i krav 4's kendetegnende del angivne måde.By further designing the mechanism according to the invention as set forth in the characterizing part of claim 3, the space requirement is further reduced, as the gear mechanism is also located within one of the rollers, namely in the roller where the drive motor is placed. Thus, the entire drive mechanism is disposed internally in the rollers carrying the sign cloth, and the drive mechanism with the electric motor is preferably disposed in the manner specified in claim 4.

20 Ved at udforme mekanismen ifølge opfindelsen som angivet i krav 5 eller 6’s kendetegnende del fås en lydløs og driftsikker konstruktion, der sikrer en passende stramhed i skiltedugen, alt afhængigt af skiltets størrelse, hvilket materiale skiltedugen er fremstillet af, hvor hurtigt skil-25 tet skal kunne skifte tekst, o.s.v.By designing the mechanism according to the invention as claimed in the characterizing part of claim 5 or 6, a silent and reliable construction is provided which ensures an appropriate tightness of the sign cloth, depending on the size of the sign, which material the sign cloth is made of, how fast the sign is must be able to change text, etc.

Ved at udforme mekanismen ifølge opfindelsen som angivet i krav 7's kendetegnende del fås på én gang en fastgørelsesmetode for skiltedugen på en sådan måde, at en skiltedug 30 nemt og hurtigt kan udskiftes og således, at man på enkel måde får drivkraften fra elektromotoren og fra de to fjedre overført til rullerne.By designing the mechanism according to the invention as claimed in the characterizing part of claim 7, a fastening method for the sign cloth is obtained at one time so that a sign cloth 30 can be easily and quickly replaced and so that the driving force is easily obtained from the electric motor and from the two springs transferred to the rollers.

TegningenThe drawing

Opfindelsen forklares herefter nærmere under henvisning til 35 4 DK 168901 B1 tegningen, idet fig. 1 viser princippet i mekanismen til et rulleskilt ifølge opfindelsen, 5 fig. 2 viser et aksialt snit i den drivende rulle i fig.The invention will now be explained in more detail with reference to the drawings, in which: FIG. 1 shows the principle of the mechanism for a roller plate according to the invention; 2 shows an axial section of the driving roller of FIG.

1, og fig. 3 viser et aksialt snit i medløbsrullen i fig. 1.1, and FIG. 3 shows an axial section of the by-pass roller of FIG. First

1010

Beskrivelse af udførelseseksemplet Få tegningens fig. 1 ses mekanismen til et rulleskilt 1 ifølge opfindelsen og omfattende en drivende rulle 2 med 15 indbygget elektromotor og en drevet rulle 3. Begge rullers indvendige konstruktion forklares nærmere senere under henvisning til tegningens fig. 2 og 3.Description of the embodiment Get the drawing fig. 1, the mechanism of a roller plate 1 according to the invention is shown, comprising a driving roller 2 with 15 built-in electric motor and a driven roller 3. The inner structure of both rollers is explained in more detail later with reference to the drawing of FIG. 2 and 3.

Til rullerne 2 og 3 er fastgjort en skiltedug 4, og på 20 skiltedugen er i passende fremvisningspositioner vist den information, der skal fremvises. For tydeligheds skyld er der på tegningens fig. 1 blot vist fire bogstaver, A, B, C og D i én fremvisningsposition. Det er klart for enhver, at der på en skiltedug 4 af en passende længde, f.eks. flere 25 meter, vil kunne anbringes information om f.eks. et persontransportmiddels stoppesteder eller enhver anden ønsket information. Skiltedugen 4 er i det viste eksempel gennemsigtig med påtrykt farvet tekst 5. Bag skiltedugen er anbragt en lysgiver 8 med en reflektor 6, så alene det stykke 30 af skiltedugen, der skal fremvises, belyses bagfra.To the rollers 2 and 3, a badge 4 is attached, and the information to be displayed is displayed in suitable display positions on the badge cloth 20. For the sake of clarity, FIG. 1 only shows four letters, A, B, C and D in one display position. It is clear to anyone that on a signboard 4 of a suitable length, e.g. more than 25 meters, information on eg. a person's means of transport or any other desired information. In the example shown, the sign cloth 4 is transparent with printed colored text 5. Behind the sign cloth is a light emitter 8 with a reflector 6, so that only the piece 30 of the sign cloth to be displayed is illuminated from behind.

På hver af rullerne 2 og 3 er der et antal langsgående, underskårne noter 7, i det viste eksempel tre noter i hver rulle. Skiltebanen 4 er fastgjort til rullerne ved hjælp af 35 en af noterne i hver rulle, nemlig noten 7'. Skiltedugen er fastgjort ved at være ført ned i noten, som herefter er ud- 5 DK 168901 B1 fyldt med en strimmel af passende materiale.On each of the rollers 2 and 3 there are a number of longitudinal, undercut grooves 7, in the example shown, three grooves in each roll. The sign path 4 is attached to the rollers by means of one of the grooves in each roll, namely the groove 7 '. The sign cloth is attached by being inserted into the groove, which is then filled with a strip of suitable material.

Rulleskiltet skal selvfølgelig indbygges i enten et passende kabinet eller eventuelt direkte i f.eks. det transport-5 middel, hvor det anvendes, f.eks. i fronten af et køretøj eller eventuelt direkte over adgangsdøren.The roller plate must, of course, be installed in either a suitable cabinet or possibly directly in e.g. the transport means in which it is used, e.g. in the front of a vehicle or possibly directly over the access door.

Tegningens fig. 2 viser et centralt, aksialt tværsnit i rullen 2, og fig. 3 viser et tilsvarende snit i rullen 3, 10 idet rullen 2 er en drivende rulle med indbygget elektromotor, og rullen 3 er en medløbsrulle uden motor.FIG. 2 shows a central axial cross-section of the roller 2; and FIG. 3 shows a corresponding section in the roller 3, 10, the roller 2 being a driving roller with a built-in electric motor, and the roller 3 being a non-motor running roller.

På fig. 2 ses rullen 2 skitsemæssigt anbragt mellem to holdere eller sidevægge 12, der har passende udskæringer, så 15 rullen kan rotere frit. Snittet er lagt således, at det går ned gennem en not 7, og tegningen viser i øvrigt, at rullen er en cylinder 11 med ringe vægtykkelse. Cylinderen 11 er fortrinsvis fremstillet af aluminium ved ekstrudering, og afskæres herefter i passende længder. I rullens ene ende, 20 den højre på fig. 2, er der indskudt et hus 24, som omfatter flanger 23 for indgreb med noterne 7, så huset 24 roterer samtidig med cylinderen 11. inde i huset 24 er anbragt en holder 14 for en elektromotor 13 samt en gearmekanisme 16,17,18 og en snekke 38, således at motoren via gearmeka-25 nismen er i indgreb med en rundtgående indvendig tandkrans 19 i huset 24, så motoren herigennem kan rotere huset 24 og dermed cylinderen 11. Gearmekanismen med snekken 38 er selvspærrende, så yderligere spærremekanismer for fastholdelse af cylinderen 11 i en bestemt position er unødven-30 digt. Motoren 13 og huset 14 er ved hjælp af holdeorganer 21 fastgjort til skiltets kabinet eller et andet fast holdeorgan.In FIG. 2, the roll 2 is shown to be arranged diagrammatically between two holders or side walls 12 having suitable cuts so that the roll can rotate freely. The cut is laid so that it goes down through a groove 7, and the drawing further shows that the roller is a cylinder 11 of low wall thickness. The cylinder 11 is preferably made of aluminum by extrusion and is then cut to suitable lengths. At one end of the roller, the right of FIG. 2, there is inserted a housing 24 which includes flanges 23 for engagement with the grooves 7 so that the housing 24 rotates simultaneously with the cylinder 11. Inside the housing 24 is arranged a holder 14 for an electric motor 13 and a gear mechanism 16,17,18 and a worm 38 so that the motor engages with a circular internal gear ring 19 in the housing 24, so that the motor can thereby rotate the housing 24 and thus the cylinder 11. The gear mechanism with the worm 38 is self-locking, so that further locking mechanisms for retaining the cylinder 11 in a particular position is unnecessary. The motor 13 and the housing 14 are secured to the housing of the sign or other fixed holding means by means of holding means 21.

I cylinderen 11 er også anbragt en torsionsfjeder 27 om-35 kring en fjederholder eller cylinder 28, idet fjederen 27 i begge ender er fastgjort til en fjederholder 26,39. Fjeder- 6 DK 168901 B1 cylinderen 28 er midt i fig. 2 afsluttet af en holder 25, der via en lejring 22 er fastgjort til huset 24. Fjederhol-deren 26 roteres gennem det efterfølgende forklarede gear for udveksling af energi ved stramning eller slækning af 5 torsionsfjederen.In the cylinder 11, a torsion spring 27 is also arranged around a spring holder or cylinder 28, the spring 27 at both ends being fixed to a spring holder 26,39. The spring cylinder 28 is in the middle of FIG. 2 is terminated by a retainer 25 which is secured to housing 24. via a bearing 22. The spring retainer 26 is rotated through the subsequently explained gear for exchanging energy by tightening or slackening the torsion spring.

Fjederholderen 26 i fjederens ene ende er roterbar og er via et tandhjulsgear, f.eks. et planetgear 30,31,32,33,34, koblet til en holder 36,37, der fastgøres på skiltets kabi-10 net eller lignende. Gearet 30-34 har en nedgearing fra 1:2 til 1:15, fortrinsvis 1:10, mellem cylinderens omdrejningstal og fjederens omdrejningstal ved holderen 26. Dette medfører, at når motoren 13 trækker cylinderen 11 rundt, vil fjederen 27 spændes med én omdrejning, for hver gang cylin-15 deren har roteret ti omgange, hvis udviklingsforholdet er 1:10. Ved rotation af cylinderen 11 får man således oplagret energi i fjederen 27, der dels bruges til at holde skiltedugen stram, dels til at hjælpe med til at rotere cylinderen 11, når der er behov herfor.The spring holder 26 at one end of the spring is rotatable and is via a gear, e.g. a planetary gear 30,31,32,33,34, coupled to a holder 36,37 which is attached to the cabinet of the sign or the like. The gear 30-34 has a downshift from 1: 2 to 1:15, preferably 1:10, between the cylinder speed and the spring speed at the holder 26. This means that as the motor 13 pulls the cylinder 11 around, the spring 27 will be tightened by one rotation. , for each time the cylinder has rotated ten turns if the development ratio is 1:10. Thus, by rotating the cylinder 11, energy is stored in the spring 27, which is partly used to keep the sign cloth tight and partly to help rotate the cylinder 11 when needed.

2020

Fig. 3 viser en medløbsrulle, der på nær et rørstykke 41 og en holder 42, der er anbragt i stedet for motorkonstruktionen og gearhuset hertil, er identisk med fig. 2, hvorfor alle tilsvarende dele har samme henvisningsnummer. I cylin-25 deren 3 har gearet 30-34 fortrinsvis samme udvekslingsforhold som i cylinder nr. 2.FIG. 3 shows an idler roller which, except for a pipe piece 41 and a holder 42, which is arranged in place of the motor structure and the gear housing thereof, is identical to FIG. 2, why all corresponding parts have the same reference number. In cylinder 25, the gear 30-34 preferably has the same gear ratio as in cylinder # 2.

Drivmotoren 13 er fortrinsvis en motor, der er styrbar og nem at vende omdrejningsretningen på. Skiltet styres ved at 30 tænde og slukke for strømmen til motoren, og dette styres f.eks. ud fra passende, ikke-viste perforeringer eller markeringer i kanten af skiltedugeh 4 og aflæses via et fotocellearrangement eller lignende. Kantmarkeringerne kan være udformet således, at fotocellearrangementet og det hertil 35 hørende styrekredsløb hele tiden ved, hvilken del af skiltet der i øjeblikket er i synsfeltet, således at motorhas- 7 DK 168901 B1 tigheden kan indrettes efter, hvor langt skiltet skal bevæge sig, når det skal omstilles til en anden, ønsket position.The drive motor 13 is preferably a motor that is controllable and easy to turn the direction of rotation. The sign is controlled by turning on and off the power to the motor, and this is controlled e.g. from appropriate, not shown perforations or markings at the edge of signage 4 and read through a photocell arrangement or the like. The edge markings may be designed such that the photocell arrangement and the associated control circuit constantly know which part of the sign is currently in the field of view, so that the motor speed can be arranged according to how far the sign is to move when it must be switched to another desired position.

55

Claims

8 DK 168901 B1

A roller sign mechanism having at least two spaced cylindrical rollers (2,3) for a sign path (4) attached to the rollers, which can be transferred between the rollers by motor rotation thereof, and wherein each roller (2,3) is hollow cylinders, a spring mechanism (26,27,28) comprising a torsion spring (27), one end of which is coupled to the roller and 10 whose other end is coupled to a roller (26). fixed part of the sign or box surrounding it, characterized in that a further drive motor, preferably an electric motor (13) is arranged in at least one of the cylinders which engages the cylinder and pulls it around in the desired direction.

Mechanism according to claim 1, characterized in that a gear (16,17,18,19) is provided for lowering the bypass between the motor (3) and the cylinder (11). 20

Mechanism according to claim 2, characterized in that the gear (16-19) comprising a worm (38) is also arranged inside the cylinder (11), that the gear input is coupled to the output shaft of the motor (13) and that the output of the gear is coupled to the cylinder (11) by means of a gear connection (18) to an internal gear (19) in the cylinder.

Mechanism according to Claim 3, characterized in that the tooth ring is arranged in a holder (24) arranged 30 inside the cylinder (11) and coupled thereto, the motor (13) being arranged centrally in the holder (24).

Mechanism according to claim 1, characterized in that a gear (30-34), preferably a gear gear, is arranged between the other end of the torsion spring (27) and the fixed part. 9 DK 168901 B1

6. A mechanism according to claim 5, characterized in that the gear (30-34) is a gear gear having a reduction from 1: 2 to 1:15 between the speed of the cylinder 5 and the speed of one end of the spring.

Mechanism according to any one of claims 1-6, wherein the cylinders in their surface have at least one axial groove (7,7 ') for securing the sign path (4), characterized in that the grooves are also arranged for holding the gearbox housing (35) and the motor holder (24).