EP0395867B1 - Cadre de fixation pour supports d'information interchangeables - Google Patents

Cadre de fixation pour supports d'information interchangeables Download PDF

Info

Publication number
EP0395867B1
EP0395867B1 EP19900105091 EP90105091A EP0395867B1 EP 0395867 B1 EP0395867 B1 EP 0395867B1 EP 19900105091 EP19900105091 EP 19900105091 EP 90105091 A EP90105091 A EP 90105091A EP 0395867 B1 EP0395867 B1 EP 0395867B1
Authority
EP
European Patent Office
Prior art keywords
light
front wall
front section
edge
scanner
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.)
Expired - Lifetime
Application number
EP19900105091
Other languages
German (de)
English (en)
Other versions
EP0395867A2 (fr
EP0395867A3 (fr
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.)
Rehau Automotive SE and Co KG
Original Assignee
Rehau AG and Co
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 Rehau AG and Co filed Critical Rehau AG and Co
Publication of EP0395867A2 publication Critical patent/EP0395867A2/fr
Publication of EP0395867A3 publication Critical patent/EP0395867A3/fr
Application granted granted Critical
Publication of EP0395867B1 publication Critical patent/EP0395867B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F1/00—Cardboard or like show-cards of foldable or flexible material
    • G09F1/10—Supports or holders for show-cards
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F3/00—Labels, tag tickets, or similar identification or indication means; Seals; Postage or like stamps
    • G09F3/08—Fastening or securing by means not forming part of the material of the label itself
    • G09F3/18—Casings, frames or enclosures for labels
    • G09F3/20—Casings, frames or enclosures for labels for adjustable, removable, or interchangeable labels
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F3/00—Labels, tag tickets, or similar identification or indication means; Seals; Postage or like stamps
    • G09F3/08—Fastening or securing by means not forming part of the material of the label itself
    • G09F3/18—Casings, frames or enclosures for labels
    • G09F3/20—Casings, frames or enclosures for labels for adjustable, removable, or interchangeable labels
    • G09F3/201—Enclosures enveloping completely the labels

Definitions

  • the invention relates to a retaining bar for interchangeable, scannerable information carriers with a fastening part for fixing to edge areas of shelves, containers and the like, and with a fixable on the fastening part, formed from a rear wall and a transparent front wall for the information carrier, the rear wall and the Front wall are connected to each other at the base and wherein the upper edge of the rear wall covers the free edge of the front wall covering.
  • the fastening part consists, for example, of a locking strip, which can be used in a locking groove on the edge areas of the shelves, containers and the like.
  • a cover strip for covering the edge regions of the shelves, containers and the like, as well as the rear wall and the front wall, which together form the receiving pocket for the information carriers, are connected in one piece to the fastening part.
  • the rear wall and the front wall are connected to one another at the base, for example via a film hinge, and the upper edge of the rear wall covers the free edge of the front wall.
  • the front wall can be released from this overlap by applying slight pressure, the opening pocket opening for the insertion of information material.
  • the receiving pocket can then be closed again by applying slight pressure against the rear wall, the upper edge of the rear wall snapping over the free edge of the front wall and holding it in the closed state.
  • the holding bar for such information carriers known from EP-A 0 203 209 also belongs to the prior art.
  • This retaining strip consists of a fastening strip and a cover strip which is integral with the lower edge of the fastening strip and which abuts the fastening strip and can be moved away on one side for inserting a label or the like.
  • On the upper edge of the fastening strip a cover protruding over the upper edge of the cover strip is formed, which is designed as a locking edge.
  • the upper edge of the cover strip is designed as an integrally formed locking edge which forms a snap closure with the locking edge of the fastening strip by engaging in and under the locking edge.
  • the retaining strip is made in one piece from polymer material, the cover strip being transparent and allowing the label to be viewed and read properly.
  • the fastening strip on the other hand, can be made of opaque plastic and forms a fastening surface on the back with which it can be glued to a shelf, for example.
  • the holding strips known from the prior art are suitable for use on shelves in warehouses, high-bay warehouses and the like.
  • the labels and the like located in the holding strips can be read by the operating personnel as well as by the customers in passing.
  • reading with the scanner pen is preferred for newer shelf structures.
  • Such scanner devices work according to the reflection method, also called incident light method.
  • Light emitting diodes are used as the light source, which mainly work in the infrared range.
  • a photodiode is used as the light receiver in the scanners. Because the transmitter diode and the photodiode have to be accommodated side by side in a very small space, there are integrated systems here which contain the transmitter diode, the photodiode, the filter disk and the amplifier for the photodiode signal.
  • a frequently used system is the HEDS-1000 type from Hewlett-Packard. This sensor works with infrared light of 700 mm wavelength and can be operated regulated or unregulated. When a line of information on the label is scanned with the scanner pen, the infrared light is received by the receiver diode, the width and spacing of the lines being converted as "flickering lights" into an electrical signal which is electronically processed and processed in the scanner system.
  • the background of the label on which the line screen is printed fluctuates in color within certain limits or the print of the line screen is different black.
  • the sensitive scanner systems react extremely susceptibly to, for example, reflected false light, which can originate, for example, from the transparent cover strip. Such a false light gives the scanner pen incorrect information that the evaluation electronics cannot cope with.
  • the transparent front wall have an approximately uniform, unoriented roughness on its surface at least on one side in the case of a crystal-clear core region.
  • the retaining strips according to the invention are produced in one piece in the extrusion process, the coextrusion process generally being selected in the present case.
  • the transparent front wall is extruded in one piece together with the non-transparent rear wall in such a way that the front wall is connected on one side to the rear wall at one longitudinal edge, while the other longitudinal edge remains without connection to the rear wall.
  • the front wall can then be bent off the rear wall via the latter longitudinal edge, the connection areas between the front wall and the rear wall also being able to be formed as a film hinge.
  • the scanner-readable label is then inserted from above into the gap between the front wall and the rear wall.
  • the front wall is then returned to the rear wall due to the tensions generated during the bending, the label inserted in the receiving pocket being enclosed and being visible to both the human eye and the scanner pen because of the transparency of the front wall.
  • drawing strips can be so small in height that they are barely perceptible to the human eye.
  • the drawing grooves on the profile surface here on the surface of the transparent front wall, are detected by the IR light of the light-emitting diode, and the mountain and valley formations, which enlarge the drawing grooves on the Form profile surface, are shown as additional light-dark transitions via reflections.
  • These insertions appear as reflected false light and pass on incorrect information to the scanner pen, which confuses the evaluation electronics. Wrong information is therefore entered into the evaluation electronics from a label read in this way with a scanner pen. This information is worthless.
  • the teaching of the invention is now to equalize the longitudinal grooves which inevitably arise during the extrusion process in such a way that such false information to the evaluation electronics is avoided.
  • the problem that has arisen is solved by the invention in such a way that the longitudinal grooves oriented on one side, which arise during extrusion on the profile surface, are equalized by approximately equally deep, non-oriented roughnesses, so that an optically equally rough surface is produced.
  • the surface appears rough and milky, but the core of the front wall remains crystal clear. In this way, no harmful reflections of light can occur through the core of the front wall.
  • the roughness of the surface which is unoriented according to the invention, then ensures that harmful reflections can no longer also emanate from the surface.
  • the light beam of the scanner pen can therefore penetrate unaffected by harmful secondary reflections up to the bar code of the label used and return the information of the line screen - also unaffected by harmful reflections - to the photodiode via the transmitter diode.
  • the information from the line grid of the label comes into the evaluation electronics without negative side effects and can be processed there accordingly.
  • the unoriented roughness according to the invention on the surface of the transparent front wall which can also be referred to as "micro-roughness”
  • micro-roughness can be achieved, for example, by using a for producing the profile in particular with regard to its lubricant, a recipe specifically set is used which, in conjunction with a defined residence time of the melt in the parallel discharge part of the nozzle mouthpiece, leads to the desired unoriented roughness.
  • An example of a recipe is structured as follows: 100 parts by weight of mass polyvinyl chloride with a K value of 57 2 parts by weight of tin stabilizer 1.5 parts by weight of polymethyl methacrylate - flow modifier 1.2 parts by weight of lubricant mixture of fatty alcohols, wax esters and oxidized polyethylene This formulation is broken down in an extruder by the action of temperature and screw friction, the residence time of the melt in the parallel discharge part of the nozzle mouthpiece being between 0.04 and 0.07 seconds.
  • a profile surface can be achieved in which the surface roughness in the longitudinal and transverse directions is approximately the same.
  • the difference in this roughness depth is less than 3.0 ⁇ in the longitudinal and transverse directions. The latter is important for the invention, since a larger difference in surface roughness - as studies have shown - in turn causes additional light-dark transitions and thus harmful reflections.
  • microroughness according to the invention can also be generated mechanically on an extruded surface of the profile. For this, grinding, sandblasting and other known methods can be used.
  • Test series have shown that, in the case of retaining strips equipped according to the invention, light striking the surface of the transparent front wall was uniformly scattered in all directions. As a typical measured value, a difference of less than 2% deviation of the light beam was measured across and along the running direction of the light source. This order of magnitude is negligible, since no harmful reflections via additional light-dark transitions and therefore no reflected false light fall into the photodiode. With surfaces of the transparent front wall not equipped according to the invention, scattered light differences of up to 25% were measured. Such values, which correspond to a roughness depth difference of approximately 4.5 ⁇ , cause the harmful reflection of false light and thus the incorrect information that comes into the evaluation electronics via the scanner pen.
  • the surface roughness according to the invention can equally be present on the outer surface of the transparent front wall and / or on the inner surface of the transparent front wall. In most cases, however, it is sufficient to arrange the approximately uniform, unoriented roughness on the outer surface of the transparent front wall.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Purses, Travelling Bags, Baskets, Or Suitcases (AREA)
  • Details Of Rigid Or Semi-Rigid Containers (AREA)

Claims (3)

  1. Barrette de maintien de supports d'informations amovibles, pouvant être scannés, comprenant une pièce de fixation sur les bords de rayons, de réservoirs et autres, ainsi qu'une pochette de réception des supports d'informations à monter sur la pièce de fixation et composée d'une paroi arrière et d'une paroi avant transparente, les parois arrière et avant étant reliées entre elles à la base et le bord supérieur de la paroi arrière débordant par recouvrement sur le bord supérieur de la paroi avant, caractérisée par le fait que la paroi avant transparente dont le coeur est clair, présente au moins d'un côté, une rugosité approximativement régulière et non orientée à sa surface.
  2. Barrette de maintien selon la revendication 1, caractérisée par le fait que la profondeur de rugosité de la surface est approximativement égale dans les sens longitudinal et transversal.
  3. Barrette de maintien selon les revendications 1 et 2, caractérisée par le fait que la différence de rugosité dans les sens longitudinal et transversal est inférieure à 3,0 µ.
EP19900105091 1989-04-29 1990-03-17 Cadre de fixation pour supports d'information interchangeables Expired - Lifetime EP0395867B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3914319 1989-04-29
DE3914319 1989-04-29

Publications (3)

Publication Number Publication Date
EP0395867A2 EP0395867A2 (fr) 1990-11-07
EP0395867A3 EP0395867A3 (fr) 1991-05-29
EP0395867B1 true EP0395867B1 (fr) 1994-01-05

Family

ID=6379825

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19900105091 Expired - Lifetime EP0395867B1 (fr) 1989-04-29 1990-03-17 Cadre de fixation pour supports d'information interchangeables

Country Status (2)

Country Link
EP (1) EP0395867B1 (fr)
CA (1) CA2015742A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0811962A1 (fr) * 1996-06-05 1997-12-10 Meto B.V. Dispositif pour l'affichage du prix et/ou d'informations d'un produit

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE402662B (sv) * 1976-10-15 1978-07-10 Lundvall Hl Plast Hallare for remsformiga informationsberare
DE8512671U1 (de) * 1985-04-29 1986-05-07 Hartmut Schoening Gmbh & Co. Siebdruckerei, 4800 Bielefeld Etikettenleiste
IE880582L (en) * 1988-05-06 1989-11-06 Carroll Prod & Designs Ltd Framing and display device

Also Published As

Publication number Publication date
EP0395867A2 (fr) 1990-11-07
CA2015742A1 (fr) 1990-10-29
EP0395867A3 (fr) 1991-05-29

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