FR2510684A1 - Tamper proof fastening for video cassette - comprises screws in counter-bored holes plugged with metallic washer and plastics plug carrying trade mark - Google Patents

Tamper proof fastening for video cassette - comprises screws in counter-bored holes plugged with metallic washer and plastics plug carrying trade mark Download PDF

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Publication number
FR2510684A1
FR2510684A1 FR8114994A FR8114994A FR2510684A1 FR 2510684 A1 FR2510684 A1 FR 2510684A1 FR 8114994 A FR8114994 A FR 8114994A FR 8114994 A FR8114994 A FR 8114994A FR 2510684 A1 FR2510684 A1 FR 2510684A1
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FR
France
Prior art keywords
washer
video cassette
hole
plug
tamper
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.)
Pending
Application number
FR8114994A
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French (fr)
Inventor
Jean Yves Beugin
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.)
BEUGIN JEAN
Original Assignee
BEUGIN JEAN
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 BEUGIN JEAN filed Critical BEUGIN JEAN
Priority to FR8114994A priority Critical patent/FR2510684A1/en
Publication of FR2510684A1 publication Critical patent/FR2510684A1/en
Pending legal-status Critical Current

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Classifications

    • 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
    • G09F3/02—Forms or constructions
    • G09F3/03—Forms or constructions of security seals
    • G09F3/0305—Forms or constructions of security seals characterised by the type of seal used
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B41/00—Measures against loss of bolts, nuts, or pins; Measures against unauthorised operation of bolts, nuts or pins
    • F16B41/005—Measures against unauthorised operation of bolts, nuts or pins
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B23/00—Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture
    • G11B23/02—Containers; Storing means both adapted to cooperate with the recording or reproducing means
    • G11B23/04—Magazines; Cassettes for webs or filaments

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Computer Security & Cryptography (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Closures For Containers (AREA)

Abstract

The two half shells (11,12) of a video cassette case (13) are fastened together by screws (14) whose heads (15) are in counterbored holes (17) in one of the shells. To prevent access to the screw head and slot (18) after assembly, a plug (26) is inserted in the hole. The plug comprises a flat metallic washer (21) whose diameter is less than that of the hole. Radial tabs (23) diametrically opposite around its periphery have an overall diameter greater than the diameter of the hole. The washer has a central hole which fits into a groove in a plastics body (22) with a conical extension (44) which is pushed into the hole in the washer so that the washer engages the groove. The assembly is pressed into the counterbored hole and is trapped by the tabs on the washer. A pattern or trade mark on the upper face shows if tampering has taken place.

Description

Dispositif pour assurer l'inviolabilité d'une cassette vidéo
L'invention a pour objet un dispositif pour assurer l1inviola- bilié d'une cassette vidéo.Device for ensuring the inviolability of a video cassette
The invention relates to a device for ensuring the inviolability of a video cassette.

Parmi les utilisateurs de cassettes vidéo, certains d'entre eux, peu scrupuleux, remplacent l'enregistrement original que contient la cassette par une copie. Pour ce faire, il faut ouvrir le boiter de la cassette, qui est constitué par deux coquilles réunies l'une à l'autre par des vis.Among the users of videotapes, some of them, unscrupulous, replace the original recording contained in the cassette by a copy. To do this, you have to open the box of the cassette, which consists of two shells joined to each other by screws.

L'invention part de cette constatation qu'au moins certaines des vis destinées à l'assemblage des deux coquilles ont leurs tatas logées au fond d'une cheminée et l'invention propose de rendre inviolable la cassette en obturant la cheminée de manière telle que la suppression de l'obturation, nécessaire pour avoir accès à la t8te de vis, ne puisse passer inaperçue.The invention starts from this observation that at least some of the screws intended for the assembly of the two shells have their tatas housed at the bottom of a chimney and the invention proposes to make the cassette tamper-proof by closing the chimney in such a way that the removal of the shutter, necessary to gain access to the screw head, cannot go unnoticed.

Selon l'invention, on dispose dans la cheminée un bouchon dont l'enlèfenlent ne peut se faire que par sa destruction totale ou partielle.According to the invention, there is a plug in the chimney which can be removed only by its total or partial destruction.

Selon une forte de réalisation, le bouchon comporte par exemple sur sa face externe une empreinte caractéristique, de sorte que l'absence d'empreinte sur un bouchon révèle 11enlè- vement du bouchon original et ainsi l'ouverture de la cassette. Sn réalisant le bouchon en matière plastique, la reconstitution d'une empreinte est rendue pratiquement impossible en raison des frais de sa réalisation.According to a strong embodiment, the stopper comprises for example on its external face a characteristic imprint, so that the absence of imprint on a stopper reveals the removal of the original stopper and thus the opening of the cassette. If the plastic plug is produced, the reconstruction of an imprint is made practically impossible because of the costs of its production.

Dans une exécution préférée, le dispositif d'inviolabilité comprend un corps en matière plastique portant l'empreinte sur sa face externe et est solidaire par sa face opposée d'un disque ou rondelle métallique enfoncé à force dans la cheminée
La constitution est prévue telle qu'en cas de tentative d'extraction du bouchon, la désolidarisation se fait au niveau du corps en matière plastique ou de son assemblage avec le disque ou rondelle métallique.In a preferred embodiment, the tamper-evident device comprises a plastic body carrying the imprint on its external face and is secured by its opposite face to a metal disc or washer forced into the chimney
The constitution is provided such that in the event of an attempt to extract the plug, the separation is made at the level of the plastic body or of its assembly with the metal disc or washer.

L'invention prévoit, en tant que moyen de solidarisation avec la paroi limitant la cheminée, des languettes cambrées fai- sant partie du disque, permettant l'enfoncement mais non
I' extraction.The invention provides, as a means of securing with the wall limiting the chimney, cambered tongues forming part of the disc, allowing the insertion but not
I extraction.

Elle prévoit également que la solidarisation du corps du bouchon avec la rondelle se fait par un bouton rétractable et expansible radialement, ou clips, traversant un orifice prévu dans le disque à languette. It also provides that the attachment of the plug body to the washer is made by a retractable and radially expandable button, or clips, passing through an orifice provided in the tongue disc.

La description qui suit, faite à titre d'exemple, se réfère aux dessins annexés, dans lesquels
La figure 1 est une vue en coupe verticale.The following description, given by way of example, refers to the accompanying drawings, in which
Figure 1 is a vertical sectional view.

La figure 2 est une vue en coupe horizontale,
La figure 3 est une vue à plus grande échelle d'une partie de la figure 1. FIG. 2 is a view in horizontal section,
FIG. 3 is an enlarged view of part of FIG. 1.

La solidarisation des deux demi-coquilles Il et 12 formant, après assemblage, un bottier 13 de cassette vidéo, est obtenue à la manière connue par plusieurs vis 14 dont la tête 15 coopère avec le fond 16 d'une cheminée 17 que présente une des demi-coquilles, par exemple la demi-coquille 11. L'actionnement de la vis se fait par l'introduction d'un tournevis dans la cheminée 17 pour que son extrémité puisse coopérer avec la fente ou croisillon 18 que présente la tate de vis 15.The joining of the two half-shells II and 12 forming, after assembly, a boot 13 of video cassette, is obtained in the known manner by several screws 14, the head 15 of which cooperates with the bottom 16 of a chimney 17 which one of the half-shells, for example the half-shell 11. The actuation of the screw is done by the introduction of a screwdriver into the chimney 17 so that its end can cooperate with the slot or cross 18 which has the tate of screw 15.

Dans les cassettes habituelles, la ou les tatas 15 sont accessibles, de sorte qu'il est possible d'ouvrir le bottier de la cassette et de remplacer une bande vidéo par une autre bande et de refermer ensuite la cassette, le remplacement restant inaperçu au moins à l'examen à l'oeil.In the usual cassettes, the tatas 15 are accessible, so that it is possible to open the case of the cassette and to replace a video tape by another tape and then to close the cassette, the replacement remaining unnoticed at less to the eye exam.

Selon l'invention, la cheminée 17 est obturée pour empocher l'introduction d'un tournevis et l'obturation est telle que sa destruction ne peut passer inaperçue
Dans ce but, l'invention prévoit un disque ou rondelle 21 comprenant un corps circulaire 22 en forme de disque plat, métallique, d'un diamètre inférieur au diamètre de la cheminée 17 et qui se prolonge à sa périphérie par des pattes radiales ou languettes 23, régulièrement espacées au point de vue angulaire, par exemple au nombre de quatre.According to the invention, the chimney 17 is closed to pocket the introduction of a screwdriver and the closure is such that its destruction cannot go unnoticed.
To this end, the invention provides a disc or washer 21 comprising a circular body 22 in the form of a flat, metallic disc, with a diameter less than the diameter of the chimney 17 and which is extended at its periphery by radial lugs or tongues. 23, regularly spaced from an angular point of view, for example four in number.

Ces pattes sont avantageusement cambrées par léger pliage autour de leurs attaches 24 au corps 22 du disque et elles sont relevées vers le haut, c'est-à-dire vers l'orifice de la cheminée 17. La longueur des pattes est telle que la distance entre les bords externes 251 à 253 de pattes diamétralement opposées, 231, 233, est légèrement supérieure au diamètre de la cheminée 17.These legs are advantageously arched by slight folding around their attachments 24 to the body 22 of the disc and they are raised upwards, that is to say towards the orifice of the chimney 17. The length of the legs is such that the distance between the outer edges 251 to 253 of diametrically opposite lugs, 231, 233, is slightly greater than the diameter of the chimney 17.

Le dispositif d'obturation comprend en outre un corps 26, cylindrique, destiné à titre fixé sur la face supérieure 27 du disque 22. The closure device further comprises a cylindrical body 26, intended by way of attachment to the upper face 27 of the disc 22.

Le corps 26 est en matière plastique et il se prolonge par un bouton 28 diamétralement expansible et rétractable, connu en soi, quelquefois appelé clips. Le bouton 28 comprend une fente longitudinale 29 à bords longitudinaux 31 et 32 et dont le fond 33 est sensiblement au niveau de l'embase 34 du bouton, le corps tronconique 35 dudit bouton se raccordant au corps 36 du bouchon 26 par une partie plus étroite 37 traversant le trou central du disque 21 avec un certain jeu.The body 26 is made of plastic and it is extended by a diametrically expandable and retractable button 28, known per se, sometimes called clips. The button 28 comprises a longitudinal slot 29 with longitudinal edges 31 and 32 and whose bottom 33 is substantially at the base 34 of the button, the frustoconical body 35 of said button connecting to the body 36 of the plug 26 by a narrower part 37 passing through the central hole of the disc 21 with some play.

Les dimensions sont choisies pour que, par contraction, il soit possible d'enfoncer le bouton 28 dans le trou 38 jusquwà traversée complète dudit trou après quoi, en raison de l'élasticité du bouton, celui-ci s'écarte à nouveau à sa base pour que son embase 34 déborde sur la face inférieure 39 du disque 22 et empêche son extraction aussi longtemps qu'on ne provoque pas sa rupture.The dimensions are chosen so that, by contraction, it is possible to push the button 28 into the hole 38 until complete crossing of said hole after which, due to the elasticity of the button, the latter deviates again at its base so that its base 34 projects beyond the underside 39 of the disc 22 and prevents its extraction as long as it does not cause it to rupture.

Ledit corps 26 du bouchon est cylindrique et son diamètre est inférieur au diamètre de la cheminée. La face supérieure 41 du corps cylindrique 26 porte une figurine, obtenue de fabrication, et dont la reproduction n'est pas possible sans faire appel à des moyens suffisamment coûteux pour avoir un effet dissuasif.Said body 26 of the plug is cylindrical and its diameter is less than the diameter of the chimney. The upper face 41 of the cylindrical body 26 carries a figurine, obtained from manufacture, and the reproduction of which is not possible without using means which are sufficiently costly to have a deterrent effect.

Dans un premier temps, le corps de bouchon 26 avec le bouton 28 est assemblé avec le disque 22, comme expliqué ci-dessus.Firstly, the plug body 26 with the button 28 is assembled with the disc 22, as explained above.

L'ensemble est ensuite enfilé dans la cheminée 17. La progression se fait malgré le frottement des arêtes 25 des pattes 23 contre la surface interne 42 de la cheminée 17. A l'enfonce- ment complet, la face frontale supérieure 41 du bouchon 26 est sensiblement au meme niveau que la face supérieure 43 de la demi-coquille 11, la face frontale inférieure 44 du bouton 28 étant à distance de la tette de vis 15.The assembly is then threaded into the chimney 17. The progression takes place despite the friction of the edges 25 of the tabs 23 against the internal surface 42 of the chimney 17. When fully depressed, the upper front face 41 of the plug 26 is substantially at the same level as the upper face 43 of the half-shell 11, the lower front face 44 of the button 28 being at a distance from the screw head 15.

Lors d'une tentative d'extraction, les languettes 23 tendent à se déformer par flexion autour de leurs attaches 24 vers une incurvation inverse de l'incurvation initiale et opposent une resistance qui augmente de plus en plus eptchant ainsi l'extraction. L'effort déployé a pour conséquence, au delà d'une certaine valeur, la rupture ou l'effrittement du matériau constitutif du corps 26 et, dans tous les cas, une altération de la figurine ou empreinte portée par la face frontale 41.During an extraction attempt, the tongues 23 tend to deform by bending around their fasteners 24 towards a curvature opposite to the initial curvature and oppose a resistance which increases more and more thus preventing the extraction. The effort deployed has the consequence, beyond a certain value, the rupture or the erosion of the material constituting the body 26 and, in all cases, an alteration of the figurine or imprint carried by the front face 41.

Les tentatives de reconstituer par la suite le dispositif de protection, y compris l'empreinte portée par sa face frontale sont pratiquement vouées à l'échec. Ea tous les cas, l'effet est suffisamment dissuasif pour que l'inviolabilité de la cassette vidéo soit assurée. Attempts to subsequently reconstruct the protection device, including the imprint carried by its front face are practically doomed to failure. In all cases, the effect is sufficiently dissuasive so that the inviolability of the video cassette is ensured.

Dans une variante, le corps cylindrique du bouchon est solin daire d'un anneau à pattes incurvées, par exemple en étant formé d'une pièce avec ce dernier. In a variant, the cylindrical body of the plug is made up of a ring with curved legs, for example by being formed in one piece with the latter.

Claims (6)

Revendications  Claims I. Dispositif pour assurer l'inviolabilité d'une cassette vidéo, laquelle comprend des moyens d'assemblage à vis entre deux deini-coquilles constituant le bottier de la cassette avec au moins une tête de vis logée au fond d'une cheminée que présente une demi-coquille, caractérisé en ce qu'un bouchon (26) obture la cheminée et empêche l'accès à la tête de vis (ils).  I. Device for ensuring the inviolability of a video cassette, which comprises screw assembly means between two deini-shells constituting the casing of the cassette with at least one screw head housed at the bottom of a chimney that has a half-shell, characterized in that a plug (26) closes off the chimney and prevents access to the screw head (they). 2. Dispositif d'inviolabilité d'une cassette vidéo, caractérisé en ce que la face frontale visible (41) du bouchon (26) porte une empreinte difficilement reproductible,2. Tamper-evident device of a video cassette, characterized in that the visible front face (41) of the plug (26) carries an imprint that is difficult to reproduce, 3. Dispositif d'inviolabilité d'une cassette vidéo selon la revendication 2, caractérisé en ce que le bouchon (26) est conçu pour se rompre au-delà d'un certain effort d'extraction qu'il subit.3. Tamper-evident device of a video cassette according to claim 2, characterized in that the plug (26) is designed to break beyond a certain extraction force which it undergoes. 4. Dispositif d'inviolabilité d'une cassette vidéo selon la revendication ), caractérisé en ce que le bouchon (26) comprend un corps en matière plastique dont la face frontale (41) porte l'empreinte et dont la face opposée est solidaire d'une rondelle (21) comprenant des moyens pour permettre son déplacement dans la cheminée à l'enfoncement et non à l'extraction.4. Tamper-evident device of a video cassette according to claim), characterized in that the stopper (26) comprises a plastic body, the front face (41) of which bears the imprint and the opposite face of which is secured to 'A washer (21) comprising means for allowing its movement in the chimney upon insertion and not upon extraction. 5. Dispositif d'inviolabilité d'une cassette vidéo selon la revendication 4, caractérisé en ce que du corps (26) du bouchon dépend un bouton expansible (28) ou clips pour l'assem- blage avec la rondelle (21). 5. Tamper-evident device of a video cassette according to claim 4, characterized in that from the body (26) of the plug depends an expandable button (28) or clips for assembly with the washer (21). 6. Dispositif d'inviolabilité d'une cassette vidéo selon la revendication 5, caractérisé en ce que la rondelle (21) comprend un corps annulaire (22) où font saillie des languettes périphériques incurvées (25) déformables à leur attache (24) au corps. 6. Tamper-evident device of a video cassette according to claim 5, characterized in that the washer (21) comprises an annular body (22) where protruding curved peripheral tongues (25) deformable at their attachment (24) to the body.
FR8114994A 1981-07-31 1981-07-31 Tamper proof fastening for video cassette - comprises screws in counter-bored holes plugged with metallic washer and plastics plug carrying trade mark Pending FR2510684A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8114994A FR2510684A1 (en) 1981-07-31 1981-07-31 Tamper proof fastening for video cassette - comprises screws in counter-bored holes plugged with metallic washer and plastics plug carrying trade mark

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8114994A FR2510684A1 (en) 1981-07-31 1981-07-31 Tamper proof fastening for video cassette - comprises screws in counter-bored holes plugged with metallic washer and plastics plug carrying trade mark

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Publication Number Publication Date
FR2510684A1 true FR2510684A1 (en) 1983-02-04

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2526209A1 (en) * 1982-04-30 1983-11-04 Tdk Corp MAGNETIC TAPE CASSETTE
FR2540276A1 (en) * 1982-09-28 1984-08-03 Shape Inc VIDEO CASSETTE WITH ULTRASONIC SQUEEGEE
EP0121861A1 (en) * 1983-02-11 1984-10-17 Otto Johan Magnus Norgaard Sealing device
EP0121943A1 (en) * 1983-04-11 1984-10-17 The Singer Company Tamper resistant seal plug
EP0139181A1 (en) * 1983-09-27 1985-05-02 D. La Porte Söhne Gmbh Safety device for a video cassette
EP0159305A2 (en) * 1984-04-19 1985-10-23 VP Utvecklingsbolag Kommanditbolag A method of documentating an inventory, and a sealing mechanism for use therewith
EP1150070A2 (en) * 2000-04-28 2001-10-31 Honeywell B.V. Device to ensure the adjustments of a gas valve or a gas burner
WO2022254331A1 (en) * 2021-05-31 2022-12-08 Hexlox Ug Security device

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2526209A1 (en) * 1982-04-30 1983-11-04 Tdk Corp MAGNETIC TAPE CASSETTE
FR2540276A1 (en) * 1982-09-28 1984-08-03 Shape Inc VIDEO CASSETTE WITH ULTRASONIC SQUEEGEE
EP0121861A1 (en) * 1983-02-11 1984-10-17 Otto Johan Magnus Norgaard Sealing device
EP0121943A1 (en) * 1983-04-11 1984-10-17 The Singer Company Tamper resistant seal plug
EP0139181A1 (en) * 1983-09-27 1985-05-02 D. La Porte Söhne Gmbh Safety device for a video cassette
EP0159305A2 (en) * 1984-04-19 1985-10-23 VP Utvecklingsbolag Kommanditbolag A method of documentating an inventory, and a sealing mechanism for use therewith
EP0159305A3 (en) * 1984-04-19 1986-05-28 Kurt Andreasson A method of documentating an inventory, and a sealing mechanism for use therewith
EP1150070A2 (en) * 2000-04-28 2001-10-31 Honeywell B.V. Device to ensure the adjustments of a gas valve or a gas burner
EP1150070A3 (en) * 2000-04-28 2002-12-18 Honeywell B.V. Device to ensure the adjustments of a gas valve or a gas burner
WO2022254331A1 (en) * 2021-05-31 2022-12-08 Hexlox Ug Security device

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