WO1993000495A1 - Einrichtung zum vorübergehenden anbringen eines signalelements an gegenständen - Google Patents
Einrichtung zum vorübergehenden anbringen eines signalelements an gegenständen Download PDFInfo
- Publication number
- WO1993000495A1 WO1993000495A1 PCT/AT1992/000079 AT9200079W WO9300495A1 WO 1993000495 A1 WO1993000495 A1 WO 1993000495A1 AT 9200079 W AT9200079 W AT 9200079W WO 9300495 A1 WO9300495 A1 WO 9300495A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- frame part
- frame
- spring
- strip
- end strip
- Prior art date
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B73/00—Devices for locking portable objects against unauthorised removal; Miscellaneous locking devices
- E05B73/0017—Anti-theft devices, e.g. tags or monitors, fixed to articles, e.g. clothes, and to be removed at the check-out of shops
- E05B73/0023—Containers, boxes, cases or the like, e.g. for compact discs or video-cassettes, specially adapted therefor
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
- E05B47/0001—Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof
- E05B47/0009—Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof with thermo-electric actuators, e.g. heated bimetals
Definitions
- the invention relates to a device for temporarily attaching a signal element, e.g. a non-linear electrical or magnetic circuit, on CD, audio, video cassettes or the like.
- a signal element e.g. a non-linear electrical or magnetic circuit
- a frame as a rigid signal element carrier, which can be attached to the object to be secured and with the help of a it is held, resiliently movable locking member can be locked against unauthorized removal from the object.
- button-like carriers with insertable thorns are used for the temporary attachment of such signal elements to textile objects, whereby it is only possible with special unlocking devices available at the checkout to detach the mandrel and thus the button-like device from the respective item sold.
- Other proposals here were to inseparably connect the signal element to the object to be secured, and in the event of a sale the signal element would be rendered ineffective before the surveillance lock was passed
- REPLACEMENT LEAF must be, cf. in addition to the aforementioned US-A-4075 618 also 0-A-88/03302.
- a disadvantage of these systems, however, is that the signal element is not reusable, apart from the fact that, with appropriate knowledge, it could possibly be removed from the object to be secured in an unauthorized manner, for example together with the packaging.
- safety devices have already been proposed, cf. for example US-A-3 718 922, US-A-3 806 910 (or the corresponding CA-A-1 007 336) and US-A-4 380 097, in which bimetallic springs are used as locking members which are heated when the power is supplied and thus fold over from a locking position into a release position.
- these known safety devices are pliers with a mandrel on a pliers arm, which is pierced, for example, by the respective - textile - object to be secured or passes through the object to be secured in an opening, and which in the closed position of the pliers device in an opening is picked up in the other gun arm.
- the bimetallic spring locks the two interlocking pliers arms against one another in the closed position Swivel.
- Pliers of this type are suitable as security devices for textile objects and the like, but not for objects such as CDs, audio cassettes, video cassettes, where piercing or reaching through is not possible.
- the inventive device of the type mentioned is characterized in that the frame is divided, the frame parts including the object to be secured can be positively connected to each other and locked by the locking member, and in that the locking member is formed by a bimetallic spring which is attached to one of the Frame parts on the inside of which in the working position faces the object, and which, in their normal operating position at room temperature, locks the frame parts on the object to be secured, but when heated, is in a release position in which the frame parts are separable from one another and thus from the object to be secured are removable.
- the above objective is advantageously met.
- the bimetal spring acting as a locking or securing element only with parts to be fastened to the object to be secured, but not with engages the object itself.
- any damage to the object which may possibly be enclosed in a thin, easily tearable plastic cover, can be reliably avoided.
- the locking member in the form of the bimetal spring can furthermore be neatly space-saving in the interior of the respective frame part, whereby outwardly protruding parts can be avoided.
- the activation of the bimetallic spring by heat is also unproblematic for the objects to be secured, regardless of whether they are CD, audio or video cassettes or other such objects.
- manufacture or assembly of such a frame with a bimetallic spring is comparatively simple and inexpensive, so that in addition to the advantage of easy handling, assembly and operation, that of simple and inexpensive manufacture is also achieved. Nevertheless, repeated use is of course possible.
- the heat required for changing the bimetallic spring from the normal operating position, in which it effects the desired locking, into the release position can be provided, for example, through the material of the frame part. Apart from the fact that the material of the frame part would then have to be selected accordingly, there is a time delay due to the time for the heat transfer through the frame part until the bimetal spring folds over, and it is therefore particularly preferred according to the invention instead if the bimetal spring is an from outside the frame forms an electrically contactable resistance heating element. Contact pins that are connected to the bimetallic spring could protrude through the frame.
- the bimetal spring can be electrically contacted via contact holes in the frame part for power supply.
- the bimetal spring can then be enclosed through the contact holes in an electrical circuit of an electrical unlocking device in order to be heated by the current flowing through it to such an extent that it folds down into its release position.
- the power supply to the bimetal spring should expediently be switched off immediately, and
- An advantageous further development of the device according to the invention accordingly provides that a contact hole is provided in the frame part for making contact when the bimetal spring moves into the release position.
- the unlocking device available in the checkout area would accordingly be provided with a corresponding contact pin, which then comes into contact with the bimetallic spring through this contact hole when it swings into the release position, in which case an, optionally electronic, switch is then in the unlocking device can be operated to terminate the power supply to the bimetallic spring through the aforementioned power supply contact holes.
- the bimetallic spring consists of two elongated, parallel strips which are fastened to the frame part at one end and connected to one another at the freely projecting end are.
- the two power supply contact holes are provided in the region of the fixed ends of the bimetal spring strips.
- the contact-making contact hole is provided in the region of the freely projecting spring end where the strips are connected to one another.
- the bimetallic spring can be attached to the signal element carrier in various ways, for example by casting in the frame material in the case of a manufacture of the frame parts by a casting technique or by ultrasonic welding.
- the form-fitting fixation of the bimetallic spring it can also simply be provided here.
- the bimetallic spring with at least one recess is placed on the inside of the frame part via a projection corresponding to this recess and the fastening plate is attached above it.
- the fastening plate is designed with a projection over which the bimetal spring with at least one recess is placed, the remaining part of the bimetal spring projecting from the end of the fastening plate.
- the mounting plate is strip-shaped and at the same time is provided for fixing the signal element. It is also advantageous for the locking function if the seat has an inclined seat for the flat bimetal spring.
- the mounting plate with snap-in projections is snapped into corresponding snap-in openings of the frame part.
- the projection of the slide-in frame part ends at a distance from the inner surface of the cover strip facing it, by a gap for the passage of the bimetal spring in its release position when the cover strip is pushed off the slide-in compartment.
- Form frame part With regard to the smoothest possible exterior, it is furthermore favorable if, next to the projection on the slide-in frame part, a shoulder is formed on the outside for the abutment of an end wall of the end strip.
- An advantageous embodiment is also characterized in that the end strip has essentially the shape of an inverted "U" in cross-section and, in the working position, overlaps the upper edge of the object to be secured with the flange-like side walls forming the U-legs , whereas the inside of the upper web part of the end strip is at least partially spaced from the object to be secured in order to provide space for the bimetal spring.
- the bimetallic spring can simply be attached to the inside of the web part. Furthermore, simple training and assembly can be made possible in this respect, since the latching recesses for the lateral latching projections of the fastening plate in the flange-like Side walls of the end strip are provided.
- the slot frame part should - in cooperation with the end strip - enclose the object to be sici such that a removal from the object is not possible without loosening and removing the end strip, but on the other hand the insert compartment frame part should the dimensions of the object to be secured if possible not significantly enlarge.
- the slide-in frame part is formed by three essentially flat, flat edge strips arranged at right angles to one another in pairs, with the two side edge strips parallel to one another at the front -and the back of the slide-in frame part run flat, flat cross strips.
- the insert frame part is molded in one piece from clear plastic material, for example injection molded.
- the transverse strips are offset from one another at the front or rear.
- a cross bar forms a guide stop for the end bar frame part, which abuts this cross bar in the working position.
- Figure 1 is a vertical longitudinal section - generally along the line I-I in Figure 2 - by a device according to the invention, wherein a frame-shaped signal element carrier is attached and locked to a CD cassette to be secured.
- FIG. 2 shows a plan view of the lower slide-in frame part of this frame-shaped signal element carrier according to FIG. 1;
- Fig. 3 is a front view of this slot frame part
- FIG. 7 shows an axonometric view of the end strip frame part of the frame-shaped signal element carrier according to FIG. 1;
- FIG. 8 is an axonometric bottom view of this end strip frame part according to FIG. 7;
- FIG. 13 shows a perspective view of a fastening plate for fixing this bimetal spring according to FIG. 12 on the inside of the end strip according to FIGS. 7 to 11;
- FIG. 14 is a view of this fastening plate in the direction of arrow XIV in FIG. 13; 15 and 16 in enlarged detail sectional representations similar to that according to FIG. 1 the locking area of the present device, the bimetallic spring being shown in FIG. 15 in its locking position and in FIG. 16 in its release position reached after heating, in which the End strip can be pulled from the slot frame part in its longitudinal direction;
- FIG. 17 in an axonometric bottom view similar to FIG. 8, a modified end strip frame part
- Fig. 19 is a bottom view of this end frame part
- FIG. 20 is a perspective view of a modified, strip-shaped fastening plate which fits the end strip frame part from FIGS. 17 to 19;
- FIG. 20A shows the detail indicated by A in FIG. 20 on a larger scale
- FIG. 21 shows a bottom view of this strip-shaped fastening plate according to FIG. 20;
- FIGS. 20 and 21 shows a side view of this fastening plate according to FIGS. 20 and 21;
- 26 shows an electrical circuit diagram of an electrical unlocking device that can be used in combination with the present bimetal spring securing device.
- FIG. 1 shows a device, generally designated 1, which is currently regarded as the best embodiment for temporarily attaching an elongated signal element 2, for example a strip of magnetic material, which cooperates with a conventional electronic monitoring system which is not known per se and which is known per se or a non-linear electronic signal circuit, for example with a diode, as known per se (not shown) on an object 3 in a vertical longitudinal section.
- This object 3 which is, for example, a CD cassette, but which can also be formed by an audio cassette or video cassette, for example, is to be secured against unauthorized removal with the aid of the signal element 2.
- the object 3 is illustrated in FIG. 1 for the sake of a better overview only very schematically by a housing shown in section, without a holder for a CD disk or the CD disk itself being shown in detail.
- the device 1 shown in FIG. 1 consists of a signal element carrier, generally designated 4, which is designed as an essentially rectangular, two-part frame 5.
- the lower, larger frame part 6 of this divided frame 5 forms, as will be explained in more detail below with reference to FIGS. 2 to 6, an insertion compartment 7 for the object 3, and for the sake of simplicity it is subsequently called an insertion compartment frame part 6 designated.
- the object 3, for example the CD cassette, is inserted into this insert compartment frame part 6, the insert compartment frame part 6 protruding slightly above the inserted object 3 on the two narrow sides.
- Upper frame part to be explained which is formed by a sealing strip 8 and is also referred to below as a sealing strip frame part 8.
- This end strip 8 carries the signal element 2 in a recess 9, cf.
- this depression 9 being in the working position shown in FIG. 1 on the inside of the end strip 8 facing the object 3 and being inaccessible from the outside around the signal element 2 secure against access from outside.
- a locking member in the form of a bimetallic spring 10 is also attached;
- This bimetallic spring 10 prevents, in the locking position or normal operating position shown in FIG. 1, in which it bears with its freely projecting end 11 on the slide-in frame part 6 as shown in FIG. 1 at the top right that the positive connection between the End strip 8 and the slide-in frame part 6, which is obtained by pin-hole arrangements 12, 13 to be explained in more detail below on the end faces of the end strip 8, is solved by pulling or pushing the end strip 8 lengthways in the direction of the arrow 14 .
- the exact operation of this locking member bimetal spring 10 will be explained in more detail below with reference to FIGS. 15 and 16. Before that, however, the construction and function of the individual components of the present system will be described with reference to FIGS. 2 to 14.
- FIGS. 2 to 6 the slide-in compartment frame part 6 is illustrated in detail in FIGS. 2 to 6.
- This slide-in frame part 6 is essentially formed by three flat, generally flat edge strips 15, 16 and 17, which are arranged at right angles to one another, the edge strip 16 forming the base of the frame part 6, from which extends at right angles upwards the two other edge strips 15, 17 extend parallel to one another. Between these parallel edge strips 15, 17 extend both on the Front as well as on the back of the slide-in frame part 6, cross bars 18, 19 or 20, 21, which, as can be seen in particular from FIG. 4, are offset in the vertical direction relative to one another. This on the one hand ensures an increased strength of this frame part 6, and on the other hand the manufacture in one piece is facilitated by injection molding, in particular made of clear plastic material.
- the production from a transparent or translucent plastic material is therefore recommended, since the object (3 in FIG. 1) can then be viewed from all sides without problems if it is enclosed in the slide-in frame part 6.
- the transverse strips 18 to 21 are of course to be provided with regard to their arrangement and width in such a way that the entire slide-in frame part 6 is sufficiently stable and that it is also impossible to move the object 3 downwards without removing the end strip 8, below the cross bar 21 (Fig. 4) to pull out of the slot frame part 6.
- a further cross bar could also be provided on the back of the slide-in frame part 6 for this purpose, as is indicated by the broken line at 24 in FIG. 4.
- the mutually parallel edge strips 15 and 17 are thickened on the outer side in the upper region of the slot compartment frame part 6 in order to have sufficient material strength in the region of the pin-hole arrangements 12, 13 for the positive connection of the two frame parts 6, 8 to ensure.
- a generally cylindrical pin 23 is provided for the positive connection on the right side as shown in these figures, the end face of this pin 23 for easier insertion into a corresponding hole 24th the end strip 8 (see FIG. 7, for example) is chamfered.
- the edge strip 17 which can be seen in FIG.
- a cross-sectionally rectangular hole 25 is provided, into which, when the end strip 8 is fastened to the slide-in frame part 6, an im Cross section more rectangular Pin 26 occurs on the corresponding end face of the end strip 8 (see FIGS. 8 and 9).
- a shoulder or shoulder 27 is provided on the outside of the right-hand edge strip 15 of the insert compartment frame part 6, on which the end wall 28 of the end strip is in the operating position 8, in which the circular hole 24 is located, comes to rest with its lower edge.
- the width of the edge strips 15, 16, 17 and thus of the slide-in compartment 7 is essentially equal to the thickness of the object 3 to be secured, the material thickness of these edge strips 15, 16, 17 depending on the material selected, for example being approximately 2 mm can.
- the thickness of the cross bars 18 to 21 or 22 can be approximately 1 mm. From this it can be seen that the slide-in frame part 6 increases the dimensions of the object 3 to be secured only insignificantly when attached to it, and the same applies to the upper end strip frame part 8, which in FIG. 4 as well as the object 3 for better illustration is indicated by dashed lines.
- cross section in the form of an inverted "U" having the upper end frame part 8 with the edge of its one leg of the "U” forming side wall 29 abuts the upper edge of the upper rear cross bar 20, so that this cross ⁇ bar 20 forms a guide stop when sliding the end bar 8.
- the end strip 8 has a generally U-shaped cross section, see. also Fig. 11, so that there is an overall groove-shaped design of the end strip 8, as can be seen in particular from Fig. 8.
- On one end of this channel-shaped end strip 8 is the end wall 28 already mentioned, in which the hole 24, which is circular in cross section, for the cylindrical pin 23 of the slide-in frame part 6 (see FIGS. 1 and 2, 3 and 5) ) located.
- a shortened end wall 30 is provided on the opposite end face of the trough-shaped end strip 8, on which the already mentioned cross-sectionally rectangular pin 26 is formed, which can also be provided with bevels on its projecting end face.
- the channel itself is defined by the already mentioned side wall 29, the side wall 31 parallel to it and defining the other leg of the "U" - which is somewhat wider than the side wall 29, cf. the representation in FIG. 11 - and the bottom wall 32 defining the web part of the "U".
- This bottom wall 32 also called the web part below, is provided over approximately 2/3 of its longitudinal extent with the depression 9 already mentioned in connection with FIG. 1, in which the signal element 2, not shown in FIGS. 8 and 9, is accommodated, and by lateral longitudinal strips 33, 34 is limited, which have the same height as the end wall 30.
- Adjacent to this receiving area for the signal element 2, a seat 35 is provided for the positive fit of the bimetal spring 10, this bimetal spring 10 consisting of a fork-shaped metal plate, the shape of which can be seen in FIG. 12.
- the bimetallic spring 10 has two mutually parallel strips or legs 36, 37, which at one end, the freely projecting spring end 11, cf. in particular also FIGS. 1, 15 and 16 are connected to one another.
- the strips 36, 37 are provided on the mutually facing edges with circular-arc-shaped recesses 38, 39 which fit exactly with a correspondingly circularly shaped projection 40 in the seat 35 of the end strip 8 (see. Fig. 8).
- This projection 40 continues in the direction of the end wall 28 in a strip-shaped projection 41, the width of which corresponds exactly to the width of the gap between the strips 36, 37 of the bimetallic spring 10.
- the legs or strips 36, 37 are also in the installed state of the bimetallic spring 10, which is shown schematically in FIGS. 9, 10 and 11 with dashed lines is indicated on the longitudinal edges or edges 42, 43 of the seat 35, so that the bimetallic spring 10 is secured by the elements 40 to 43 against all movements in the spring plane by the positive engagement.
- a separate fastening plate 44 is provided which, apart from FIG. 1, is shown schematically in FIG. 10 (in an exploded view) and otherwise in 13 and 14 is illustrated in more detail.
- This mounting plate 44 is provided on two longitudinal sides with strip-shaped locking projections 45, 46, with which it can snap into corresponding elongated locking recesses 47, 48 in the side walls 29, 31 when it is in the direction of arrow 49 in Fig. 10 in place at the seat 35 is snapped.
- the mounting plate 44 is in profile, cf. 10 and 13, wedge-shaped, i.e. it increases in thickness from one end face to the other, and in a corresponding manner the seat 35 as a whole is also inclined in relation to the longitudinal extent of the end strip 8 or the web part 31 thereof, cf. in particular the representation in FIG. 10.
- the bimetal spring 10 assumes an oblique position in its normal operating position, as can also be seen from FIGS.
- this fastening plate 44 is provided with a cutout 53, which can be seen in FIGS. 13 and 14, for example at least partially oblique, in a corner region, and in the seat 35 there is a corresponding extension in a corresponding corner region 54 molded. As a result, the mounting plate 44 can only be snapped into the end bar 8 in the correct position.
- a thickening can be provided on one of the edge strips 15, 17, for example the edge strip 15, in the upper end region 2, 3 and 6 at 58 as illustrated in FIGS. The object 3 lies against this thickening 58 in the operating position with its upper corner.
- one leg 36 can be provided with a bevel 59 matching the shoulder 54 to facilitate the correct installation of the bimetal spring 10 in the seat 35; in this simple way it is ensured that the bimetallic spring 10 can only be placed in the correct position on the seat 35 during its assembly.
- FIGS. 17 to 25 illustrate a modified embodiment of the end strip frame part 8 together with the fastening plate 44 ', this end strip frame part 8 together with the insert frame part 6 according to FIGS. 2 to 6 and together with a bimetallic spring 10 as shown in Fig. 12 can be used.
- the end bar 8 in the embodiment according to FIGS. 17 to 25 largely corresponds to that according to FIGS. 7 to 16, and accordingly the differences between the two embodiments are to be emphasized below. Above all, the appearance of the final bar 8 according to FIGS. 17 to 25, as far as its outside is concerned, the same as that shown in FIG. 7, so that a new description in this regard is not necessary.
- the bimetal spring (see FIG. 12) is not attached to a seat 35 on the web part 32 of the end strip 8 itself, but to a seat 35 'on the strip-shaped fastening plate 44', on its side facing the web part 32 in the assembled position, which is shown at the top in FIGS. 20, 22 and 23.
- the Si z 35 ' corresponds in terms of its design to the seat 35 according to FIGS. 8 to 11, and it is accordingly designed with a round projection 40 and elongated, strip-shaped projections 41, 41' projecting from both sides thereof, see FIG. Figure 20A.
- the fastening plate 44 ' is designed to be half-open on its end face which receives the bimetal spring (10 (FIG. 13), see in particular the illustration in FIG. 20A, in order to push the bimetal spring 10 onto the seat 35' enable.
- bridge parts 61, 62 are provided on the upper side of the fastening plate 44 ', and offset to this is a bridge part located centrally on the underside of the fastening plate 44'
- fastening plate 44 'in the state inserted into the end strip 8 is preferably flush with the end wall 30 (FIG. 17) from which the pin 26 with a rectangular cross section protrudes.
- FIG. 26 shows a circuit diagram of an exemplary embodiment for an electrical unlocking device 100 which has three contact pins or general contacts 155, 156 and 157 in a spatial arrangement (not shown here) in accordance with the arrangement of the contact holes 55, 56 and 57 in the end strip frame part 8 of the device described, so as to be described in more detail below, via the contacts 155, 156 of the bimetallic spring 10 (not shown in FIG. 26) to supply the current for heating it as well as after the bimetal spring 10 has been folded over and thus when the contact 157 is made contact, this current supply is to be switched off again.
- the unlocking device 100 has a transformer 102 which is to be connected to a voltage source, in particular the public AC supply network, via a microfuse 101 and which, for example, transforms the applied mains voltage down to a voltage of 2.5 V / 20 A.
- a control circuit 103 with a relay 104 and, on the other hand, a triac 105 are connected in parallel to the transformer secondary side with low voltage via the contacts 155, 156.
- the control circuit 103 also contains a diode rectifier circuit 106 with diodes D1 to D4 in a grating position and one parallel to the relay 104 Smoothing capacitor 107.
- This control circuit 103 is connected via a normally closed contact 108 'of a further relay 108, which (as will be explained in more detail below) after the bimetallic spring 10 has been flipped over and thus makes contact at contact 157, through which a bimetal spring contact 156.
- the gate connection of the triac 105 is connected to the bimetal spring contact 156 via a normally open contact 104 'of the control circuit relay 104.
- the contacts 155, 156 are closed via the bimetallic spring 10, as mentioned.
- the contact 108 'of the relay is in the rest position shown, and the AC voltage is rectified via the rectifier 106, with smoothing taking place in the capacitor 107.
- the coil of the relay 104 is now energized and the normally open contact 104 'closes so that the gate connection of the triac 105 is supplied with voltage.
- the triac 105 becomes conductive and current flows through the bimetal spring 10 and the triac 105, whereby the bimetal spring 10 - for example within a few seconds, e.g. in 1 to 3 seconds - is heated so much that it folds over.
- the bimetallic spring 10 now contacts the contact 157, the rectifier 109 is connected to the secondary AC voltage of the transformer 102, and the coil of the relay 108 is excited by the DC voltage smoothed with the aid of the capacitor 110.
- the relay 108 picks up and the normally closed contact 108 'switches over. This cuts off power to the rectifier 106 and relay 104, and the relay 104 drops , whereby the contact 104 'is opened again and the triac 105 is thus brought into the blocking state.
- the power supply to the bimetal spring 10 is interrupted.
- the bimetallic spring 10 when the bimetallic spring 10 is folded down, an acoustic display and an optical display via the loudspeaker 111 or the LED 112 are effected in order to signal that the unlocking process has ended.
- the device can now be removed from the contacts 155, 156 and 157 and out of the unlocking device, and the end strip frame part 8 can be removed to the object 3 contained in the device, e.g. the CD to be able to take out.
- the slide-in compartment frame part 6 preferably consists of a clear plastic material, such as polyethylene terephthalate (PETP) or polycarbonate, while the closing strip frame part 8, like the fastening plate 44 or 44 ', can also consist of an opaque plastic material, which makes the choice of material easier, than a special heat resistance with regard to the heating of the bimetallic spring 10 is to be taken into account here.
- a suitable plastic material would be, for example, polybutylene terephthalate (PBTP), in particular with glass fiber reinforcement (for example 30%; for increased rigidity and temperature resistance).
- the bimetallic spring 10 if it itself acts as an electrical resistance heating element, preferably consists of a material combination consisting, on the one hand, of a nickel-based alloy and, on the other hand, of a MnNiCu alloy or a NiMn or NiCr steel; the two sheets of these materials can be welded together, for example by rolling. It should also be mentioned here that it would also be possible to heat the bimetallic spring 10 indirectly, for example with its own electrical heating line or heating winding.
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- Multimedia (AREA)
- Thermally Actuated Switches (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP92912709A EP0612367A1 (de) | 1991-06-24 | 1992-06-23 | Einrichtung zum vorübergehenden anbringen eines signalelements an gegenständen |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT125991 | 1991-06-24 | ||
ATA1259/91 | 1991-06-24 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1993000495A1 true WO1993000495A1 (de) | 1993-01-07 |
Family
ID=3510026
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/AT1992/000079 WO1993000495A1 (de) | 1991-06-24 | 1992-06-23 | Einrichtung zum vorübergehenden anbringen eines signalelements an gegenständen |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0612367A1 (de) |
AU (1) | AU2013292A (de) |
WO (1) | WO1993000495A1 (de) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0616103A1 (de) * | 1993-03-17 | 1994-09-21 | Pataco AG, Industrie- und Unterhaltungselektronik | Diebstahlsicherungs-Vorrichtung |
US5688861A (en) * | 1995-11-30 | 1997-11-18 | Arco Chemical Technology, L.P. | Process for the preparation of polyol polymer dispersions |
WO1999039068A1 (en) * | 1998-01-29 | 1999-08-05 | Necchi S.R.L. | Anti-theft case, particularly for compact disks, videocassettes, musicassettes and the like |
WO2002031299A1 (fr) * | 2000-10-13 | 2002-04-18 | Fors France | Equipment antivol |
EP1563471A1 (de) * | 2002-11-22 | 2005-08-17 | Sensormatic Electronics Corporation | Proximitäts-ablösung für elektronische artikelsicherungsetiketten |
WO2006128926A1 (es) | 2005-06-01 | 2006-12-07 | Plettac Seguridad Y Sistemas, S.A. | Mecanismo de apertura de seguridad |
US7404484B2 (en) | 2000-11-10 | 2008-07-29 | Meadwestvaco Corporation | Security device for information storage media |
US7726466B2 (en) | 2005-03-18 | 2010-06-01 | Ghislain Justin Marie Mat | Conveyor belt scraper |
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FR2124287A1 (de) * | 1971-02-03 | 1972-09-22 | Check Mate Systems Inc | |
US3806910A (en) * | 1972-10-19 | 1974-04-23 | Check Mate Syst Inc | Product monitoring device and system |
US4285429A (en) * | 1980-02-04 | 1981-08-25 | Mactavish William D | Tape cassette security container |
EP0308810A2 (de) * | 1987-09-22 | 1989-03-29 | Actron Entwicklungs AG | Sicherheitsbehälter für wertvolle Gegenstände, wie CD, Platten oder Bänder sowie Verriegelungsmittel für solche Behälter |
DE9001907U1 (de) * | 1990-02-17 | 1990-04-19 | Sematic Sicherheitstechnik GmbH, 7230 Schramberg | Sicherheitsbox |
US4966020A (en) * | 1989-06-06 | 1990-10-30 | 880335 Ontario Inc. | Locking mechanism |
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1992
- 1992-06-23 WO PCT/AT1992/000079 patent/WO1993000495A1/de not_active Application Discontinuation
- 1992-06-23 EP EP92912709A patent/EP0612367A1/de not_active Ceased
- 1992-06-23 AU AU20132/92A patent/AU2013292A/en not_active Abandoned
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FR2124287A1 (de) * | 1971-02-03 | 1972-09-22 | Check Mate Systems Inc | |
US3806910A (en) * | 1972-10-19 | 1974-04-23 | Check Mate Syst Inc | Product monitoring device and system |
US4285429A (en) * | 1980-02-04 | 1981-08-25 | Mactavish William D | Tape cassette security container |
EP0308810A2 (de) * | 1987-09-22 | 1989-03-29 | Actron Entwicklungs AG | Sicherheitsbehälter für wertvolle Gegenstände, wie CD, Platten oder Bänder sowie Verriegelungsmittel für solche Behälter |
US4966020A (en) * | 1989-06-06 | 1990-10-30 | 880335 Ontario Inc. | Locking mechanism |
DE9001907U1 (de) * | 1990-02-17 | 1990-04-19 | Sematic Sicherheitstechnik GmbH, 7230 Schramberg | Sicherheitsbox |
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0616103A1 (de) * | 1993-03-17 | 1994-09-21 | Pataco AG, Industrie- und Unterhaltungselektronik | Diebstahlsicherungs-Vorrichtung |
US6143802A (en) * | 1995-11-30 | 2000-11-07 | Bayer Antwerp N.V. | Process for the preparation of polyol polymer dispersions |
US5688861A (en) * | 1995-11-30 | 1997-11-18 | Arco Chemical Technology, L.P. | Process for the preparation of polyol polymer dispersions |
US5955534A (en) * | 1995-11-30 | 1999-09-21 | Arco Chemical Technology, L.P. | Process for the preparation of polymer polyol dispersions |
CZ297995B6 (cs) * | 1998-01-29 | 2007-05-16 | Necchi S. R. L. | Zabezpecovací skrínka pro ploché predmety |
WO1999039068A1 (en) * | 1998-01-29 | 1999-08-05 | Necchi S.R.L. | Anti-theft case, particularly for compact disks, videocassettes, musicassettes and the like |
WO2002031299A1 (fr) * | 2000-10-13 | 2002-04-18 | Fors France | Equipment antivol |
FR2815371A1 (fr) * | 2000-10-13 | 2002-04-19 | Bruno Bouan | Equipement antivol |
US7404484B2 (en) | 2000-11-10 | 2008-07-29 | Meadwestvaco Corporation | Security device for information storage media |
EP1563471A1 (de) * | 2002-11-22 | 2005-08-17 | Sensormatic Electronics Corporation | Proximitäts-ablösung für elektronische artikelsicherungsetiketten |
EP1563471A4 (de) * | 2002-11-22 | 2010-06-02 | Sensormatic Electronics Corp | Proximitäts-ablösung für elektronische artikelsicherungsetiketten |
US7726466B2 (en) | 2005-03-18 | 2010-06-01 | Ghislain Justin Marie Mat | Conveyor belt scraper |
WO2006128926A1 (es) | 2005-06-01 | 2006-12-07 | Plettac Seguridad Y Sistemas, S.A. | Mecanismo de apertura de seguridad |
Also Published As
Publication number | Publication date |
---|---|
EP0612367A1 (de) | 1994-08-31 |
AU2013292A (en) | 1993-01-25 |
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