EP0223168A1 - Plaque de cuisson électrique et dispositif pour sa connexion - Google Patents

Plaque de cuisson électrique et dispositif pour sa connexion Download PDF

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Publication number
EP0223168A1
EP0223168A1 EP86115497A EP86115497A EP0223168A1 EP 0223168 A1 EP0223168 A1 EP 0223168A1 EP 86115497 A EP86115497 A EP 86115497A EP 86115497 A EP86115497 A EP 86115497A EP 0223168 A1 EP0223168 A1 EP 0223168A1
Authority
EP
European Patent Office
Prior art keywords
hotplate
connection
underside
sections
piece
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP86115497A
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German (de)
English (en)
Other versions
EP0223168B1 (fr
Inventor
Robert Kicherer
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.)
EGO Elektro Geratebau GmbH
Original Assignee
EGO Elektro Gerate Blanc und Fischer GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by EGO Elektro Gerate Blanc und Fischer GmbH filed Critical EGO Elektro Gerate Blanc und Fischer GmbH
Priority to AT86115497T priority Critical patent/ATE54529T1/de
Publication of EP0223168A1 publication Critical patent/EP0223168A1/fr
Application granted granted Critical
Publication of EP0223168B1 publication Critical patent/EP0223168B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/68—Heating arrangements specially adapted for cooking plates or analogous hot-plates
    • H05B3/70—Plates of cast metal
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/68—Heating arrangements specially adapted for cooking plates or analogous hot-plates
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
    • H05B2203/016—Heaters using particular connecting means

Definitions

  • the invention relates to an electric hotplate with a hotplate body and a lower cover with an insulating piece for the implementation of heating resistor connecting lines, the outer connecting sections are formed with their ends for connecting device lines and are fixed in a transport and assembly position.
  • the electric hot plate In the case of electric hot plates, there is on the one hand the need for a compact stacking for storage and transport and on the other hand the electric hot plate should be as simple as possible, namely in particular largely automated attached to a hob and can be securely connected to the appliance lines.
  • the electric hotplate is inserted into a mounting opening of the hob, supported against the edge of this mounting opening against contact forces and connected to the device lines on the underside of the hob.
  • the width of the mounting opening is usually only slightly larger than the greatest width of the part of the hotplate body engaging in it, which is given in the region of an outer, annular cast flange edge of the hotplate body.
  • it is essential that the underside of the hotplate is suitable for stacking, but this usually leads to the connecting sections for connecting the device lines being relatively difficult to access.
  • the invention has for its object to provide an electric hotplate of the type described, which ensures automatic handling, in particular with regard to the stacking, with a simple structure.
  • the outer sections of the connecting lines in the transport and assembly position extend from above to at most approximately on the underside of the hotplate.
  • the hotplate is suitable for being stacked one above the other, for example with the interposition of a cardboard coated with foam film or a similar flat body, with the same or the same hotplate, in such a way that hotplates lying one above the other are arranged coaxially with one another.
  • the hot plates can alternate with their cooking surfaces and their sub sides are supported on one another or they can be stacked in a particularly advantageous manner in the same orientation so that adjacent hotplates with a cooking surface and a bottom face each other, in each case expediently the lowest hotplate is arranged with the cooking surface facing downwards.
  • the part of the hob is designed which has to be inserted through the mounting opening into the hob. If this part has protruding members on the outer circumference of the hotplate, in particular connecting sections or flexible connecting lines, then it may be necessary for the hotplate to be inclined relative to the hob, which complicates the assembly, particularly in the case of its automation can.
  • connection sections are formed only by short stubs protruding above the insulating piece, simple insertion of the hotplate into the hob is possible, but access to the connection of the device lines can be relatively complicated and require a connection solely by means of a welded connection.
  • the assembly is considerably simplified in that, in the transport and assembly position, the connection sections of the connection lines in view of the hotplate body extend at most to its outer circumference, in particular at most to the inner circumference of an outer flange edge of the hotplate body.
  • connection sections from the transport and assembly position after inserting the hotplate into the hob can be converted into a connection position in which they protrude beyond the outer circumference and / or the underside of the hotplate and are therefore very easy for the connection are accessible.
  • the connection sections expediently form, parallel to the outside of the hotplate, intrinsically rigid, but resiliently movable and essentially straight plug-in or connection pins, which are preferably formed in one piece at least by the joint or by the passage through the insulating piece are and can protrude relatively far over the outer circumference of the hotplate.
  • connection - Compensate structure by its resilient flexibility.
  • connection section in particular, if the transport and assembly position of the connection sections is the same position as their connection position, it is expedient if for the part of the connection section lying between the insulating piece and the outer circumference of the hotplate body in the underside of the outer flange edge and / or the cover is provided with a, in particular groove-shaped, receiving recess, so that the connection section can protrude beyond the outer circumference of the hotplate, but does not protrude beyond the underside of the hotplate and therefore does not impair the stackability in any way. From the position engaging in the receiving recess, the connection section bent away from the underside of the hotplate into an inclined position or into a position perpendicular to the underside of the hotplate and thereby transferred into a preferred connection position.
  • connection sections can also be arranged so that they are jerked under the stack pressure into the receiving recess and when released from the stack pressure resiliently emerge from the underside of the hotplate.
  • the design according to the invention can also advantageously take into account the disadvantages that arise from the fact that during operation of the hotplate in the immediate vicinity of its underside, relatively high temperatures occur, which can impair or damage both the connection connections and the device lines . These degrees of temperature decrease considerably even at relatively short distances from the underside of the hotplate, which is why the connection connections and the device lines can be moved in an area in which no excessive temperatures occur due to the design according to the invention.
  • the connecting lines themselves are designed over their entire length so that they are resistant to the high temperatures.
  • the object on which the invention is based can also be achieved in an advantageous manner in that a common connecting piece is provided for all connecting sections, the separate connecting members arranged next to one another on an insulating body and threading guide means located in the region of their front ends for the connecting pins, so that even with automated assembly, a positionally correct connection between the connecting sections and connecting piece or with these connected device lines is guaranteed.
  • the connector thus contributes to the correct orientation of the connector sections before the final connection or before reaching its end position.
  • guiding surfaces can be provided on the one hand on the insulating body and on the other hand on the connecting members or on both parts, which are expediently arranged in such a way that they have an alignment effect in at least two coordinate directions.
  • the connecting piece has connecting or aligning members which are insulated from the connecting members for direct engagement in the hotplate, so that an exact positional alignment and possibly a direct load-bearing connection of the connecting piece with respect to the hotplate can be achieved in a simple manner.
  • the insulating body expediently projects over a larger part of its total length over the outer circumference of the hotplate, so that the device lines adjoining its outer end are relatively far away from the hotplate and therefore do not have to be particularly temperature-resistant.
  • connection sections can also be aligned with the hotplate by a separate centering member before assembly, this centering member engages the connection sections at a distance from the bushing through the insulating piece and expediently leaves the ends free at least over a short length.
  • the centering member which can be transferred from a stacking position into an assembly position, is advantageously arranged so that when connecting the connecting piece, the connecting sections gradually over all of that Free length on which they engage in the connector.
  • connection elements and the connection sections can be made by resistance welding, spot welding, inert gas welding and in particular by non-contact welding, such as laser welding. But it can also be done by squeezing the connecting member, by clamping screws or by pure, if necessary releasable plug connections, which is particularly advantageous when hot plates have to be replaced or replaced.
  • connections mentioned are also suitable for connecting the connecting elements to the device lines, any possible combination between the types of connection mentioned being possible with the device lines being conceivable to adapt to the respective requirements.
  • the risk that the heating resistor connecting lines when the hotplate is stacked or during assembly is torn off by moving the connecting sections inside the hotplate from their connection with the heating resistors can be substantially reduced by the fact that the inner sections of the connecting lines are secured against the hotplate that movements of the connection sections are not transmitted to it.
  • the hotplate according to the invention is particularly suitable for automatic stacking and for automatic assembly using automatic handling machines (robots).
  • both the hotplate and the connector or its insulating body expediently each have at least one position tioning element, on the basis of which the position of the hotplate or the connecting piece can be precisely recognized by the handling machine and this position can be secured.
  • a device for attaching the connecting piece to the electric hotplate is characterized according to the invention in that a gripper is provided which moves the connecting piece in three coordinate directions with respect to the connecting sections in order to bring them into engagement one after the other with the guide surfaces so that they open easily gives an accurate alignment of the connector sections with respect to the connector.
  • a gripping and aligning device is provided for the connection sections, preferably two gripping jaws being provided, at least one of which has a comb-like gripping surface with centering cutouts for the connection sections.
  • the centering cutouts can be delimited in a simple manner prism-shaped, for example V-shaped.
  • the electric hotplate 1 has a one-piece cast-iron body 2, the upper side of which forms a flat cooking surface 3 which is provided with a recess in the center and is therefore ring-shaped, but free of perforations.
  • The, for example, circular hotplate body 2 forms a peripheral collar 4 adjoining the cooking surface 3, the outer circumference of which is the largest Determines the width or the largest diameter of the hotplate body 2 and on the underside of which a jacket-shaped or apron-shaped flange edge 5 which is offset slightly inward relative to this outer circumference, the lower end face of which determines the underside of the hotplate body 2.
  • the central axis 6 of the electric hotplate 1 is provided, protrudes downward over the part of the underside of the hotplate body 2 adjoining it to the central axis 6.
  • one, two or more heating resistors 7 in the form of heating coils are laid in grooves extending spirally about the central axis 6, which are separated from one another by correspondingly spiraling, rib-shaped intermediate webs of the cast body, which are pressed into a mineral-pressed insulating mass relative to the hotplate body 2 are embedded without contact.
  • this field is delimited by an inner flange edge 70 of the cast body corresponding to the outer flange edge 5, this flange edge 70 expediently projecting less far downward than the outer flange edge 5.
  • the hotplate body 3 has a center pin 8 which projects over its underside approximately as far as the flange edge 5 and is provided with a threaded bore.
  • the underside of the electric hotplate 1 or of the space enclosed by the flange edge 5 is closed with a cover 9 made of sheet metal, which bears under tension with an outer ring edge 10 on the lower end face of the flange edge 5.
  • the cover 9 formed by a lid-like embossed or deep-drawn part, the outer circumference of which is formed by the approximately the same width as the outer circumference of the flange edge 5 having the edge surface of the ring edge 10, is at least one, in particular two or more, lying outside the central axis 6, screws 11 and nuts engaging in eye-shaped widenings of the flange rim 70 against the underside of the hotplate body 2 and thus against the end faces of the central pin 8 and the flange edge 5 tensioned, the screws 11 being countersunk in depressions in the underside of the cover 9 in such a way that the screws 11 do not protrude beyond the areas of the underside of the cover 9 lying essentially in one plane, namely in the plane of the ring edge 10.
  • the threaded hole of the center pin 8 is accessible through an opening in the cover and is used to fasten the hotplate in a hob.
  • the cover 9 has only areas which form depressions on the underside, that is to say are set back upwards with respect to this underside. These areas are formed, in particular, by an approximately closed annular groove-shaped depression 12, which is immediately adjacent to the ring edge 10, and by an approximately rectangularly delimited depression 13 in the bottom view, which lies symmetrically to an axial plane 14 of the hotplate in the area of the interruption of the annular groove 12.
  • a support ring 15 made of sheet metal is provided, which closely surrounds the outer circumference of the flange edge 5 over a small part of its height and for supporting the electric hotplate 1 on the edge of the assembly opening in a hob 0 .dg1. serves.
  • the support ring 15 can be approximately U-shaped in cross-section, its outer ring leg expediently running obliquely in cross-section downwards to the outside.
  • the heating resistors 7 have end pins 16 fastened at their ends, which protrude downward from the insulating bed and lie completely in the space between the underside of the hotplate body 3 and the cover 9. At these end pins 16, the ends of inner portions 18 of heating resistor leads 19 are attached, wherein these inner sections 18 between an insulating piece 20 and the respectively associated end pin 16 run essentially in a straight line or parallel to the cooking surface 3 at a distance between the underside of the hotplate body and the cover 9.
  • connecting lines 17 are led out through side-by-side through openings 21 at right angles to the cooking surface 3 in the insulating piece 20 downward from the hotplate or through the cover 9, the through openings 21 being on both sides of the axial plane 14 in a common plane perpendicular to this and the insulating piece 20 is approximately symmetrical to the axial plane 14.
  • the sections 18 are angled approximately at right angles to the inside of the insulating piece 20 or to the associated, conically widened end of the respective lead-through opening 21 and, with this angled section, can lie essentially free of play at least in a narrow outer section of the respective lead-through opening 21.
  • the respective connecting line 17 is in turn provided with a bend 22 such that it forms an outer, rectilinear connection section 19 following this bend is parallel to the axial plane 14 and is directed towards the area of the flange 5 closest to the Isoller piece 20.
  • the connecting lines 17 are thus angled in the area of the passage through the insulating piece 20, in some cases approximately U-shaped or in part Z-shaped.
  • the connecting cables are from the direct connection to the heating resistors or their end pins to the ends of the connecting pins by one-piece, curved, tempe temperature-resistant solid wire pieces, in particular made of chrome-nickel alloy, are formed, which are preferably angled directly on the underside of the Isoller piece.
  • the expediently made of steatite insulating piece 20 passes through a window-like opening 23 that closely surrounds it with its boundary in the bottom of the recess 13 of the cover 9 parallel to the underside and is supported with a shoulder surface on the inside of the edge of the cover 9 surrounding the opening 23.
  • the insulating piece 20 is also supported on the underside of the hotplate body 3 in the area in which the heating resistors 7 are located, on both sides of the lead-through openings 21 or the connecting lines projecting beyond their inside projections 24.
  • the outer ends of the through openings 21 lie in a region of the insulating piece 20 which is provided approximately in the plane of the bottom of the recess 13 and is surrounded by a circumferential, projecting edge 26 which, however, does not protrude to the underside of the cover 9.
  • Cutouts 25 are provided in the long sides of this edge 26, the connecting sections 19 crossing the edge 26 at right angles in the region of the associated cutout 25.
  • a less deep receiving recess 27 is provided between the latter and the ring edge 10 in the underside of the cover 9, which extends over the ring edge 10 in the area of a corresponding cutout in the flange edge 5 and in which the connection sections 19 lie in this way that they do not protrude beyond the underside of the cover 9 and their ends extend beyond the outer circumference of the flange 5.
  • connection sections 19 lie in a common plane which is perpendicular to the axial plane 14 or to the central axis 6 and which is also at a few angles degrees can be inclined to the underside of the cover 9 or to the cooking surface 3 such that the connecting sections 19 move away from their underside to their free ends and are spaced apart from the underside of the rest of the hotplate with these free ends. All connection sections 19 are of equal length or so long that their free ends flattened transversely to the common plane lie in a common plane perpendicular to the axial plane 14.
  • the hotplate has on its underside, namely in the lower end face of the flange edge 5, a positioning member (not shown in detail) in the form of a cutout, in which the cover 9 engages with a cam which is shaped out of its ring edge 10.
  • this positioning member is also suitable for mounting the hotplate in the correct position relative to the central axis 6.
  • the bend of the respective connecting line 17 located directly on the underside of the insulating piece 20 is designed as a predetermined bending point or as a joint 22a in that the associated wire in this area is weakened in cross-section by squeezing.
  • the hinge axis is expediently parallel to the underside of the hotplate la, such that the connection section 19a can be pivoted from its transport and assembly position shown in solid lines in Fig. 3 by about 180 ° in the connection position shown in dash-dotted lines, in which it corresponding to the design of FIG. 1.
  • the receiving recess 27a is provided in the cover 9a in such a way that it Section 19a in its transport and assembly position directed from the insulating piece 20a towards the center of the hotplate la, while the connection section 19a lies in the connection position below the underside of the cover 9a or the flange edge 5a.
  • the joint of the respective connection section 19b is provided between its bend 22b or the insulating piece 20b and the closest area of the flange edge 5b or the ring edge 10b of the cover 9b and by a screw torsion -Spring 71 is formed, to which the connecting line 17b, for example made of spring wire, is bent in this area.
  • the spring 71 In the extended position of the connecting section 19b when the spring 71 is relaxed, the spring 71 has a single spring turn of 360 °, connecting tangentially to the rectilinear, aligned parts of the connecting section 19b, that is to say essentially laterally next to the latter the side facing away from the axial plane 14b.
  • the springs 71 are offset from one another in the longitudinal direction at adjacent connection sections 19b, the two outer springs 71 being in pairs closer to the insulating piece 20b and the two middle springs 71 closer to the flange edge 5b.
  • the respective outer or freely ending part of the connection section 19b serving as a connecting pin can be pivoted away from the axial plane 14b about an axis perpendicular to the underside or to the cooking surface 3b until its end on the inner surface of a serving as a stop 72 serving shoulder of the cover 9b, which forms a transition between the ring edge 10b and the bottom of the receiving recess 27b.
  • the springs 71 including the adjoining parts of the connection sections 19b, have enough space so that they do not protrude beyond the underside of the cover 9b in the transport and assembly position mentioned.
  • the springs 71 are wound by the straight parts of the connecting sections 19b coming from the insulating piece 20b in the direction towards the bottom of the receiving recess 27b, so that the free end parts of the connecting sections 19b lie against this floor in the transport and assembly position.
  • By slightly lifting the connection sections 19b from the cover 9b their free end parts are released from the stop 72, so that they jump into the extended connection position indicated by dash-dotted lines in FIG. 5.
  • FIG. 5 In the embodiment according to FIG.
  • the bends 22b have two bending points which are located directly adjacent to one another, namely an approximately right-angled bend directly adjoining the lower end of the through-opening 21b and a subsequent bend in the opposite direction, which is hairpin-shaped, so that there is advantageously a strain relief for the connecting line 17b.
  • One leg of the hairpin-shaped bend merges rectilinearly into the associated part of the connection section 19b, this bend being at least partially recessed in the underside of the insulating piece 20b.
  • a common connecting piece 31 is provided for connecting all connecting sections 19b, which in an insulating body 32 made of steatite or the like has a number corresponding to the number of connecting sections 19b parallel to one another and directly adjacent to one another, electrically conductive connecting members 33 has that extend only over part of the length of the insulating body 32 and are arranged completely concealed within this.
  • device lines 34 are connected via crimped or clamped connections 35, whereby these device lines 34 can be flexible, that is to say easily bendable or limp and, in each case, lines such as copper strands surrounded by a separate insulating jacket in the area of their transition into the connecting piece 31 with the front ends of the connecting members 33.
  • connection members 33 are designed in the region of their front ends in the manner of plug pins which have approximately the same cross section or diameter as the connection sections 19b.
  • the pins of the connecting members 33 are connected to each other in alignment with the connecting sections 19b by a crimp connector designed as a butt connector in the form of a crimp sleeve 36, which is expediently squeezed before being connected to the connecting member 33 or before being inserted into the insulating body 32 is attached to the connection section 19b and forms that as a plug-in sleeve over this projecting part, which abuts the stop 72 in the transport and assembly position.
  • connection sections 19b When the connection sections 19b are connected, they are inserted into the insulating body 32, then the connecting members 33 of the device lines 34 formed by wire end sleeves are inserted into the crimp sleeves 36 and then secured by being crimped together with the crimp sleeve 36.
  • two mutually aligned engagement openings 53 are provided in the insulating body 32 in the area of each crimping point.
  • the connecting members 33 are located near the end of the insulating body 32 remote from the insulating piece 20b and at a distance outside the outside circumference of the hotplate in an area in which only relatively low temperatures prevail during its operation.
  • the springs 71 are completely recessed within pocket-shaped openings in the insulating body 32, which in turn connects almost immediately to the insulating piece 20b and is inclined downwards at a few angular degrees to its outer end, such that it presses under the force of the resiliently upward Connection sections 19b on the underside of the ring edge 10b or the flange edge 5b supports.
  • the side view of the extremely flat, almost plate-shaped insulating body 32 has in the area of its front end on the upper side at least one hook member 56 which is formed in one piece with it and which can be hooked into a corresponding plug-in opening in the bottom of the receiving recess 27b and thereby during the alignment of the connecting piece 31 contributes towards the hotplate both in the direction of insertion depth and transversely to the underside of the hotplate and in lateral directions.
  • the associated end of the connecting piece 31 thus engages in the receiving recess 27b.
  • the connecting member 33c can also be formed directly by the crimp sleeve, which is already attached to the associated end of the device line 34c before the connection to the hotplate.
  • the engagement openings 53c for the crimping tool are located in the areas of the connecting piece 31c into which the connecting sections 19c are to be inserted.
  • the connecting piece 31c or the insulating body 32c is at a distance from the insulating piece 20c, its end facing this being provided approximately in the region of the flange edge 5c. While in the embodiment of FIG.
  • a plug-in profile 56d is provided in the embodiment according to FIG. 9, which is formed by the shorter leg of an angled sheet-metal profile.
  • This sheet profile carries on its underside the insulating body 32d of the connector 31d.
  • the plug profile 56d engages in a corresponding opening in the underside of the cover 9d, in particular in the bottom of the receiving recess 27d, and carries the actual connecting piece 31d together with the connecting sections 19d.
  • connection socket At the ends of each a connection socket is fastened, which has a connection hole for inserting the device line and a clamping screw for releasably clamping the device line within its section lying in the insulating body 32d.
  • a corresponding plug-in connection is also conceivable, which can be designed to be detachable or so self-locking that after a single plug-in it is no longer possible to detach the device line or the connection section without destruction.
  • the crimp sleeves especially in the case of the design according to FIGS. 6 and 7 or according to FIG. 8, are expediently made of corrosion-resistant steel and can be relatively thick-walled; they can also be designed for an overlapping parallel connection.
  • connection sections 19e by means of short connection stubs which, with slight bending at the lower ends of the lead-through openings, protrude straight towards the underside of the hotplate, but not above it Protrude underside, but are recessed in a recess on the underside of the insulating piece 20e.
  • connection members 33e which conveniently protrude beyond the associated end of the insulating body 32e of the connector 3le and go substantially in one piece over its entire length, are fixed by welding or the like.
  • the hook member 56e engages in the cover 9e so that the associated end of the connecting piece 31e or the insulating body 32e lies in the one cutout 25e on the underside of the insulating piece 20e, while the insulating body 32e is provided in the region of the flange edge 5e at a distance below it is.
  • the hook member 56f is provided such that the insulating body 32f of the connecting piece 31f is parallel to the cooking surface 3f and engages both in the cutout of the insulating piece 20f and in the receiving recess 27f of the cover 9f and the flange edge 5f.
  • the screw 11 is formed by a stud screw, which is exposed with a threaded section in the associated depression of the cover 9 and can optionally be used to prevent the hotplate from rotating relative to the hob
  • the arrangement according to FIG. 12 provided that the corresponding screw in the cover 9h is relatively low, namely with its bottom wall lying against the end face of the eye-like widening not in the plane of the end face of the flange rim 70h, but approximately in the plane of the end face of the flange rim 5h lies.
  • the depression is sufficient for receiving the head of a cap screw 11h or a nut that counteracts a stud according to the design according to FIG. 1.
  • a connecting piece 31i is provided, the connecting members 331 of which extend over the entire length of the insulating body 32i and project freely over its front end.
  • the connecting members 33i are designed in the manner of sockets, in which area they are U-shaped in cross-section approximately up to the connection of the device lines 34i, and the opening between the U-legs is provided by an inner surface the receiving opening in the insulating piece 32i is covered, so that a closed cross-section over the circumference, partly delimited by the connecting element 33i and partly by the insulating piece 32i, is formed in the socket opening 36i, the width of which is less than twice the diameter of the connecting portions 19i.
  • the freely projecting front ends of the connecting members 33i which are designed in the manner of wire end sleeves, form threading-in guide means and for this purpose have a cross-sectional shape which is not completely closed over the circumference.
  • this cross-sectional shape is approximately rectangular at an angle with a rounded transition zone between the angle legs, the radius of curvature of which corresponds to the radius of curvature of the semicircular crossbar of the aforementioned U profile and is flush with it.
  • a shorter angle leg 38 of this angle profile 37 lies parallel to the common in the connected position
  • the center plane of the connecting pins 19i namely on its side facing away from the cover 9i, is aligned with the associated U-leg of the connecting member 33i, from which it forms a continuous continuation.
  • the other, longer angle leg 39 is at right angles to this and is directed towards the underside of the cover 9i, this angle leg 39 being formed by a correspondingly deformed end section of the other U-profile leg of the connecting member 33i and in this profile leg via a surface which is smooth on the inside, continuously curved guide section 42 merges.
  • the inner surfaces of the angled legs 38, 39 form two guide surfaces 40, 41 which are at right angles to one another and merge into one another via a concave fillet, of which the guide surface 41 is continuously curved into the inner surface of the guide section 42 and thus, like the guide surface 40, continuously into the associated inner surfaces of the Socket opening 36i merges.
  • the outer side of the angle leg 38 adjoins a shoulder surface 43 of the insulating body 32i which covers the freely projecting ends of the connecting members 33i or the angle profiles 37 over part of their length and which is formed by a corresponding projection which extends over the width of the insulating body 32i.
  • This projection or the shoulder surface 43 lies on the side of the connecting members 33i or the angle profiles 37 facing away from the cover 9i, the shoulder surface 43 being able to form a continuation of the guide surfaces 40.
  • the angled legs 38 or the guide surfaces 40 of all connecting members 33i protrude in cross section in the same direction, that is to say that the threading guide means for all connecting members are equally oriented. In Fig.
  • the electric hotplate li is shown in its preferred mounting position, namely with the cooking surface 3i underneath and the cooking hob 44 engaging in the support ring 15i is indicated by dash-dotted lines.
  • the connecting piece 31i is moved towards the connecting sections 19i in parallel or in alignment with the connecting sections 19i using a gripper (not shown in more detail).
  • the gripper engages in two positioning members 45 of the connecting piece 31i provided on the side of the insulating body 32i, which are formed by lateral cutouts or depressions, so that in addition to holding the connecting piece 311 in the correct position, a positive connection in the plugging direction is also ensured.
  • the connecting piece 31i is moved towards the connecting sections 19i in such a way that they are still a short distance from the extensions of the guide surfaces 40, 41 which are intended in the plug-in direction, that is to say in any case they come to lie in the angle or plug-in space enclosed by them .
  • the connecting piece 311 is moved in two mutually perpendicular coordinate directions 46, 47 at right angles to the insertion direction arrow 48, these coordinate directions being parallel or at right angles to the planes of the guiding surfaces 40 , 41 and are each directed in the direction perpendicular to the associated guide surface 40 or 41, in which this guide surface points.
  • the connecting piece 31i is first moved in the coordinate direction 47 perpendicular to the guide surface 41 until the connecting sections 19i abut on the respectively associated guide surface 41, after which the connecting piece 31i is moved in the coordinate direction 46 perpendicular to the guide surface 40 until the connecting sections 19i also abut on this guide surface 40.
  • the connecting sections 19i are thus aligned exactly with respect to the socket openings 46, so that the connecting piece 31i can be pushed completely in the plug direction arrow 48 onto the connecting sections 19i designed as plug pins, for example until the front ends of the connecting members 33i or the angle profiles 37 come to lie in the area of the bends 22i.
  • the movement in the plug-in direction arrow 48 can be interrupted or it can be continued at such a low speed that threading of the connecting sections 19i into the socket openings 36i is guaranteed in any case.
  • the connecting sections 19i are then fixedly connected to the connecting members 33i within the connecting members 33i, that is to say between their front and rear ends or between the front and rear ends of the insulating body 32i. This can be done, for example, in an advantageous manner by contactless welding, for which purpose an access opening 49 is provided on the side of the insulating body 32i facing away from the cover 9i in the region of each connecting member 33i.
  • the connector 31i or the insulating body 32i is as seen in side view or in the direction of insertion flat body of approximately constant thickness, which is oblong-rectangular in plan view with its adjoining connecting members 33i across its width.
  • the insulating body 32i On its side facing the cover 9i, the insulating body 32i has protruding, knob-shaped latching members 50 near its front end, to which corresponding latching openings or latching depressions 51 in the bottom of the receiving recess 27i are assigned.
  • the two locking recesses 51 lie in a view of the underside of the hotplate on both sides of the group of connection sections 19i.
  • the latching members 50 snap into the latching depressions 51 when the connector 31i is plugged onto the connector sections 19i, so that the insertion depth with which the connector sections 19i engage in the connector 31i is precisely defined.
  • the design can be provided such that the latching members 50 are pressed into the latching depressions 51 by the spring force of the connection sections 19i and are thereby secured in their latched position.
  • the connector 31i lying obliquely to the underside of the electric hotplate 11, corresponding to the connecting sections 19i projects relatively far beyond the outer periphery of the flange edge 5i or the hotplate body 2i, so that the device lines 34i lie at a relatively large distance from the electric hotplate.
  • connection section also forms an articulation zone in the form of a desired bending point, through which the connection section is in particular at a right angle to the axial plane 14 Center axis relative to the rest of the hotplate, preferably at least up to a position protruding at right angles above its underside.
  • the connecting piece can, if necessary, also lie vertically below the insulating piece 20i after the assembly, the bending of the connecting sections expediently taking place only after the connection to the connecting piece.
  • this joint zone 22k of the connecting line 17k is formed by two cross-sectional weakenings 52 lying directly adjacent to one another on both sides of the bend, these cross-sectional weakenings being able to be formed by squeezing the solid wire piece and having their smaller cross-sectional extent at right angles to the joint axis.
  • the cross-sectional weakenings which have a stiffening effect in the manner of flat profiles, can also be provided directly adjacent to the bend next to one another at the associated end of the connecting section, so that the bend and the joint zone lie next to one another and do not coincide.
  • the connecting members 33m are formed by plug sockets projecting freely beyond the front end of the insulating body 32m, which are bent from sheet metal strips and are therefore longitudinally slotted.
  • the connecting members 33m At a distance from the front end of the insulating body 32m, the connecting members 33m have conical extensions 37m as threading and guiding means for the connecting sections.
  • the insulating body 32m has a stop 50m on its associated side, which can abut the outer periphery of the flange edge of the hotplate body, and thereby the plug fe for the connection sections.
  • the projecting connecting members 33m are particularly suitable for connection to the connecting sections by spot welding or non-contact welding, such as laser welding.
  • the insulating body 32m has in the area of each connecting member 33m passing through it an engagement opening 53m for a crimping tool, with which the connecting members 33m are deformed by squeezing within the insulating body 32m in such a way that they are longitudinally opposite the insulating body 32m are secured.
  • the engagement openings 53m can be provided side by side on the side facing away from the hotplate, on the side facing it or on both sides, preferably in each case in alignment with one another.
  • a guide surface 40n namely the guide surface parallel to the common central plane of the connection sections, is formed by the insulating piece 32n, namely by a shoulder surface which is approximately the entire width of the latter, similar to the shoulder surface 43 according to FIG. 15 .
  • This shoulder surface is only interrupted by flat strip or flag-shaped extensions of the connecting members 33n, which engage in groove-shaped recesses in the shoulder surface such that the guide surfaces 40n are approximately aligned with the associated inner boundaries of the socket openings 36n, these inner boundaries being associated with the associated U-profile legs the connecting members 33n are formed.
  • each guide surface 40n passes continuously between two guide and connection lugs 39n, each connection lug 39n forming a guide surface 41n lying at right angles to the guide surface 40n.
  • the guide surfaces 40n in contrast to the embodiment according to FIGS. 13 to 15, point away from the underside of the hotplate, so that the associated coordinate direction 46n is accordingly directed in the opposite direction.
  • the insulating body 32n In addition to the access openings 49n for the contactless welding located adjacent to the front end of the insulating body 32n, the insulating body 32n also has at least one engagement opening 53n for a crimping tool or the like for each connecting member 33n. on.
  • the freely projecting ends of the terminal lugs 39n are for the connection to the terminal sections by resistance welding or the like. suitable.
  • connection section 19p For each connection section 19p, a separate, groove-shaped receiving recess 27p is provided in the underside of the cover 9p, which is made between a relatively narrow circumferential groove 54 adjoining the ring edge 10p and the recess 13p for the insulating piece 20p in the cover 9p.
  • each connection section 19p is secured against lateral movements and thus any corresponding bending even during transport or during stacked storage.
  • the connecting members 33r are expediently formed by thick-walled tube sections made of corrosion-resistant steel or a similarly high-temperature-resistant, electrically conductive material and can be mechanically firmly connected to the connecting pins by simply squeezing them together.
  • the connecting members 33s are formed by relatively thick-walled steel sleeves, which are widened in a funnel shape at their front ends to form threading and guiding means for the connecting pins by non-cutting deformation.
  • clamping screws 55 with a thread are guided in such a way that they engage in the side flanks of the oval cross section of the connecting members 33s in accordance with FIG. 31 and are therefore guided particularly securely.
  • the clamping screws 55 are used to connect the device lines 34s, which are thus releasably attached.
  • connection members 33s are connected to the connection sections by crimping.
  • the insulating body 32s is fastened to an essentially U-shaped plug body 56 which is bent from sheet metal and which can be designed, for example, to be plugged onto a mating connector of the cover.
  • the plug body 56s which partially encompasses the insulating body 32s for securing the position, protrudes in the plug direction arrow 48s beyond the connecting members 33s and can be provided in the region of its front end with the latching members 50s in the form of features.
  • the plug body 56s lies on the side of the insulating body 32s facing the hotplate, which it covers with respect to the hotplate.
  • the connecting members 33t are oval or long-round throughout their cross-section over their length, so that the connecting sections are also inserted into long-round socket openings, the larger cross-sectional extent of which lies at right angles to the common central plane of the connecting sections .
  • clamping screws 57 are also provided, which are in front of the Insulating bodies 32t are exposed at the projecting ends of the connecting members 33t so that their threads engage in the mutually parallel, flat inner flank surfaces of the socket openings.
  • the embodiment according to FIGS. 32 and 33 is a very short connecting piece 31u, the insulating body 32u of which receives the connecting members completely sunk and has a substantially greater width than its extension in the plugging direction and can be designed in the manner of a luster terminal.
  • a single clamping screw 37u is provided on each connecting member 33u, which clamps the end of the associated connecting section 19u, which is expediently widened by squeezing, overlapping against the associated end of the device line 34u and thus directly against it.
  • This end of the device line 34u can be welded or the like. be attached to the connecting member 33u or it can be detachably fixed at the same time as the connecting section 19u by the clamping screw 57u.
  • connection sections 19u are also recessed in the insulating body 32u.
  • this design is suitable for the connection sections 19u to be transferred into a position projecting approximately at right angles from the underside of the hotplate, so that the connection piece 31u and the device line 34u, provided the space available under the hob allow it, are relatively far below the electric hotplate.
  • each connecting member 33v can also be designed in such a way that they are connected over a row ne, preferably self-locking plug connection can be connected to the connection sections.
  • each connecting member 33v is formed by an approximately U-shaped sheet metal profile, the leg of which lying towards the front of the connecting piece 31v has a plug-in opening for the respective connecting section.
  • This plug-in opening can be delimited by a barb-like locking member 57v, which hooks in the connection section in such a way that it no longer releases it in the opposite direction to the plug.
  • a plug opening is expediently provided for a plug 58 attached to the device line 34v in such a way that it can be inserted releasably.
  • All device lines 34v are attached directly adjacent to their associated ends or plugs 58 in the correct position on a web-shaped connecting piece 59, so that they can be connected together as a block to the connecting piece 31v.
  • the embodiment according to FIG. 36 differs from this essentially in that the front ends of the connecting members 33w assigned to the connecting sections are formed by angle profiles 37w lying freely in front of the insulating body 32w or similar threading and guiding means, so that the connecting - Sections can be connected by welding.
  • protruding parts are provided on the hotplate ly over the underside of the cover 9y, so that these are essentially only for stacking with offset centers sen 6y is suitable.
  • a threaded bolt lly projecting downward in the central axis 6y is provided, which is screwed into the central pin of the hotplate body 2y and on which a nut for fixing the cover 9y relative to the hotplate body is arranged.
  • the cover 9y lies completely within the flange edge 5y and is cup-shaped with a raised edge within the flange edge 5y against the underside of the hotplate body or the field having the heating resistors 7y.
  • connection sections 19y there is a mating connector 30 protruding parallel to them in the form of a sheet metal profile, which is possibly penetrated by the insulating piece 20y and is fastened to the underside of the cover 9y, for example by spot welding.
  • the mating connector 30, which may have a U-shaped cross section or a tongue-shaped flat, the free end of which projects outwardly less far than the connecting sections 19y, lies with its plugging section at a distance below the cover 9y, this plugging section being approximately the same plugging direction as the connection - Has 19y sections.
  • the mating connector 30, which can also be used instead of the positioning member 28 described in the flange 5y for the correct orientation of the electric hotplate ly, is used for attaching a connector 31y, which also has connectors 33y for receiving the connector portions 19y.
  • FIGS. 29 and 31 show the assignment of the connecting piece 31 to the electric hotplate ly or to the mating connector 30, the connecting piece 39y 1m essentially corresponding to that according to FIGS. 29 to 31.
  • the plug body 56y can be arranged in such a way that it receives the mating connector 30 between its relatively low legs pointing away from the underside of the hotplate and is thereby secured against lateral displacements.
  • latching members 50y can be provided on the plug body 56y, which cooperate with corresponding counterparts in the counterplug 30, which are not shown in detail.
  • the connecting members 33y are aligned very precisely with respect to the connecting sections 19y in two mutually perpendicular coordinate directions.
  • a plate-shaped centering member 60 which is formed in one piece with the mating connector 30, is provided for all connecting sections 19y, this centering member 60 being in the centering position in a plane approximately perpendicular to the connecting sections 19y and downward from the electric hotplate ly sticking out.
  • the centering member 60 which has on its lower longitudinal edge for each connecting section 19y a prismatic or V-shaped centering opening 61, which in the area of this longitudinal edge is opposite the remaining width of the Centering opening 61 forms a further outlet opening 62, engages the connecting sections 19y at a short distance behind their free ends.
  • the centering member 60 is integrally connected to the front end of the mating connector 30 in the region of its side facing away from the centering openings 61 via a hinge zone 63 in the form of relatively weakly dimensioned connecting webs, the hinge axis being in the plane of the underside of the mating connector 30, so that the centering member 60 can be folded against this underside.
  • connection sections 19y emerge from the centering openings 61 through the execution openings 62.
  • the plug body 56y of the connecting piece 31y can be shortened relative to the connecting members 33y in such a way that the latter first come into engagement with the connecting sections 19y.
  • the connecting members 33y and in particular the plug body 56y abut the centering member 60, so that it is folded against the underside of the mating connector 30 and then lies between this underside and the plug body 56y and the connecting members 33y cannot be electrically bridged.
  • the plug body 56 is located on the underside of the mating connector 30. Also in the embodiment according to FIGS.
  • the hotplate ly can be designed to be essentially continuously flat on the underside in a transport and assembly state.
  • the centering member 60 is then set up, for example, from its position folded against the underside of the mating connector 30, the connecting sections 19y are pivoted out of their transport and assembly position around their joints into the connecting position and in the centering openings 61 precisely aligned.
  • the gripper used for assembly of an automatic handling machine or the like can have a corresponding counter-centering member, which has similar, prism-shaped centering openings for each connection section 19y and in the region of the centering member 60, whose centering openings 61 act opposite to the connection sections 19y, so that they cannot be moved be held in their centering position.
  • the gripper can also have both centering members on two counter-rotating centering jaws, so that the centering member 60 provided on the hotplate can be dispensed with.
  • connection sections for example the connection sections 19 .
  • 19y "or 19 z during assembly also take place in that a separate alignment or centering tool 64 is provided, which is expediently provided as a gripper for the separate gripping of the connecting sections 19 z such that they are both parallel to one another
  • the tool has two comb-like gripping jaws 65, 66 which can be brought into engagement with one another and which either lie immediately adjacent to one another and can thereby overlap one another, or one of which has a thicker gripping jaw on its comb edge
  • the gripping jaws 65, 66 have gripping openings 67 which are designed and arranged in accordance with the centering member 60 and are oriented with their open sides towards one another and, for example, narrowed in a funnel-like manner to their bottom surfaces with convexly curved flanks are, with the floor areas about half
  • the cross-section of the connection sections corresponds to 19 z.
  • the gripping jaws 65, 66 project in the direction in which the gripping openings 67 are provided next to one another, projecting freely from one end from a gripper holder 68, opposite which one or both gripping jaws are movably mounted towards and away from one another.
  • only one gripper jaw 65 is slidably mounted to close the tool relative to the gripper holder 68, while the other gripper jaw 66 is rigidly attached to the gripper holder 68.
  • the tool 64 moves laterally into the connecting sections 19 z in such a way that they lie between the gripping jaws 65, 66 and between two adjacent connecting sections cut 19 z the two opposite, substantially tapered, associated comb teeth are provided, each lying between two gripping openings 67 of the respective gripping jaw 65, 66 and forming their flanks.
  • the connecting sections 19 z slide on the flanks of the gripping openings 67 until they each abut the two opposite bottom surfaces of two opposite gripping openings 67 and are held essentially free of play by clamping. Since the free ends of the connection sections 19 protrude beyond the tool 64, these ends can be slightly resiliently adapted to their position or to the position of the connection members when they are inserted into the connection piece.
  • the gripping jaws 65, 66 can be moved in a straight line relative to one another
  • the gripping jaws 65 z, 66 z in the embodiment according to FIG. 42 can be pivoted like a pair of pliers.
  • the two gripping jaws 65 z, 66 z form extended gripper arms beyond the gripping openings 67 z, which at their ends distant from the gripping openings 67 z are pivotable to one another in a joint 69 z about an axis parallel to the central axes of the gripping openings 67 z, and are mounted on the gripper bracket 68 z.
  • connection section it is also conceivable to provide a separate pair of pliers for each connection section, so that a plurality of pliers lying next to one another can engage in the connection sections from the underside of the electric hotplate.
  • the tongs can engage in the connection sections very close to the insulating piece, since they take up very little space between these connection sections and the underside of the electric hotplate.

Landscapes

  • Baking, Grill, Roasting (AREA)
  • Cookers (AREA)
  • Resistance Heating (AREA)
  • Connections Arranged To Contact A Plurality Of Conductors (AREA)
  • Connections By Means Of Piercing Elements, Nuts, Or Screws (AREA)
  • Cable Accessories (AREA)
  • Electric Stoves And Ranges (AREA)
EP86115497A 1985-11-16 1986-11-08 Plaque de cuisson électrique et dispositif pour sa connexion Expired - Lifetime EP0223168B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86115497T ATE54529T1 (de) 1985-11-16 1986-11-08 Elektrokochplatte sowie vorrichtung fuer deren anschluss.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19853540815 DE3540815A1 (de) 1985-11-16 1985-11-16 Elektrokochplatte sowie vorrichtung fuer deren anschluss
DE3540815 1985-11-16

Publications (2)

Publication Number Publication Date
EP0223168A1 true EP0223168A1 (fr) 1987-05-27
EP0223168B1 EP0223168B1 (fr) 1990-07-11

Family

ID=6286258

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86115497A Expired - Lifetime EP0223168B1 (fr) 1985-11-16 1986-11-08 Plaque de cuisson électrique et dispositif pour sa connexion

Country Status (6)

Country Link
US (1) US4871902A (fr)
EP (1) EP0223168B1 (fr)
AT (1) ATE54529T1 (fr)
DE (2) DE3540815A1 (fr)
ES (1) ES2016242B3 (fr)
YU (1) YU194486A (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0304906A2 (fr) * 1987-08-27 1989-03-01 E.G.O. Elektro-Geräte Blanc u. Fischer Boîtier de connexion pour plaques électriques de cuisson
EP0327849A2 (fr) * 1988-02-09 1989-08-16 E.G.O. Elektro-Geräte Blanc und Fischer GmbH & Co. KG Plaque de cuisson électrique
EP0399105A2 (fr) * 1989-05-23 1990-11-28 E.G.O. Elektro-Geräte Blanc und Fischer GmbH & Co. KG Plaque de cuisson électrique

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DE3803806A1 (de) * 1988-02-09 1989-08-17 Ego Elektro Blanc & Fischer Elektrokochplatte
DE8805230U1 (fr) * 1988-04-20 1989-08-24 E.G.O. Elektro-Geraete Blanc U. Fischer, 7519 Oberderdingen, De
DE4008830A1 (de) * 1990-03-20 1991-09-26 Ego Elektro Blanc & Fischer Elektrokochplatte
DE19821140B4 (de) † 1998-05-12 2009-08-27 E.G.O. Elektro-Gerätebau GmbH Elektrokochplatte
FR2859867B1 (fr) * 2003-09-16 2006-04-14 Frima Sa Element chauffant pour appareil de cuisson
ES2341882T3 (es) * 2005-02-04 2010-06-29 Panasonic Corporation Calentador de induccion.
US10696168B2 (en) * 2012-06-14 2020-06-30 Dr. Ing. H.C.F. Porsche Aktiengesellschaft Charging connection apparatus for a motor vehicle
DE102012105139A1 (de) * 2012-06-14 2013-12-19 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Ladeanschlussvorrichtung für ein Kraftfahrzeug
US11665790B2 (en) * 2016-12-22 2023-05-30 Whirlpool Corporation Induction burner element having a plurality of single piece frames
KR102533873B1 (ko) * 2019-02-19 2023-05-19 엔지케이 인슐레이터 엘티디 세라믹 히터 및 그 제법

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US2001995A (en) * 1932-01-08 1935-05-21 Edwin L Wiegand Electric resistance heating element
DE2442717A1 (de) * 1974-09-06 1976-03-18 Karl Fischer Elektrische heizplatte fuer elektroherde
FR2371118A1 (fr) * 1976-11-13 1978-06-09 Ego Elektro Blanc & Fischer Piece de connexion pour le branchement electrique de plaques chauffantes electriques de cuisson
DE2933349A1 (de) * 1979-08-17 1981-03-26 Fischer, Karl, 75038 Oberderdingen Elektrokochplatte
EP0102015A2 (fr) * 1982-08-25 1984-03-07 E.G.O. Elektro-Geräte Blanc u. Fischer Plaque de cuisson électrique
EP0113923A2 (fr) * 1983-01-15 1984-07-25 E.G.O. Elektro-Geräte Blanc u. Fischer Plaque de cuisson électrique

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US1636029A (en) * 1923-02-01 1927-07-19 Edwin L Wiegand Electrtical heating device
GB424291A (en) * 1933-10-23 1935-02-19 Gen Electric Co Ltd Improvements in or relating to electric hotplates and the like
US2696747A (en) * 1951-10-02 1954-12-14 Thomas & Betts Corp Toggle-actuated crimping tool with full-stroke compelling mechanism
AT196981B (de) * 1956-06-21 1958-04-10 Austria Email Ag Elektrisch beheizte Kochplatte
DE1143281B (de) * 1960-11-11 1963-02-07 Karl Fischer Elektrische Massekochplatte mit selbsttaetiger Steuerung
DE1270201B (de) * 1961-10-18 1968-06-12 Ego Elektro Blanc & Fischer Elektrische Massekochplatte
DE1291032B (de) * 1962-09-20 1969-03-20 Ego Elektro Blanc & Fischer Elektrische Massekochplatte
DE1690557C3 (de) * 1968-02-01 1974-06-27 Duras, Herbert, Dipl.-Ing., 7518 Bretten Elektrische Massekochplatte
US4048877A (en) * 1975-03-25 1977-09-20 Pressmaster Ltd. Device, particularly of the pliers or scissors type
US4029896A (en) * 1975-10-22 1977-06-14 Electro-Therm, Inc. Terminal housing for an electrical resistance heater
US4158302A (en) * 1977-12-23 1979-06-19 Thomas & Betts Corporation Tool with full-stroke compelling mechanism
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Publication number Priority date Publication date Assignee Title
US2001995A (en) * 1932-01-08 1935-05-21 Edwin L Wiegand Electric resistance heating element
DE2442717A1 (de) * 1974-09-06 1976-03-18 Karl Fischer Elektrische heizplatte fuer elektroherde
FR2371118A1 (fr) * 1976-11-13 1978-06-09 Ego Elektro Blanc & Fischer Piece de connexion pour le branchement electrique de plaques chauffantes electriques de cuisson
DE2933349A1 (de) * 1979-08-17 1981-03-26 Fischer, Karl, 75038 Oberderdingen Elektrokochplatte
EP0102015A2 (fr) * 1982-08-25 1984-03-07 E.G.O. Elektro-Geräte Blanc u. Fischer Plaque de cuisson électrique
EP0113923A2 (fr) * 1983-01-15 1984-07-25 E.G.O. Elektro-Geräte Blanc u. Fischer Plaque de cuisson électrique

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0304906A2 (fr) * 1987-08-27 1989-03-01 E.G.O. Elektro-Geräte Blanc u. Fischer Boîtier de connexion pour plaques électriques de cuisson
EP0304906A3 (fr) * 1987-08-27 1990-01-17 E.G.O. Elektro-Geräte Blanc u. Fischer Boítier de connexion pour plaques électriques de cuisson
AU612174B2 (en) * 1987-08-27 1991-07-04 E.G.O. Elektro-Gerate Blanc & Fischer Electric hotplate connecting piece
EP0327849A2 (fr) * 1988-02-09 1989-08-16 E.G.O. Elektro-Geräte Blanc und Fischer GmbH & Co. KG Plaque de cuisson électrique
EP0327849A3 (fr) * 1988-02-09 1991-01-16 E.G.O. Elektro-Geräte Blanc und Fischer GmbH & Co. KG Plaque de cuisson électrique
EP0399105A2 (fr) * 1989-05-23 1990-11-28 E.G.O. Elektro-Geräte Blanc und Fischer GmbH & Co. KG Plaque de cuisson électrique
EP0399105A3 (fr) * 1989-05-23 1991-01-16 E.G.O. Elektro-Geräte Blanc und Fischer GmbH & Co. KG Plaque de cuisson électrique
TR25399A (tr) * 1989-05-23 1993-03-01 Ego Elektro Blanc & Fischer Elektrikli pisirme plakasi

Also Published As

Publication number Publication date
YU194486A (en) 1988-04-30
EP0223168B1 (fr) 1990-07-11
US4871902A (en) 1989-10-03
DE3540815A1 (de) 1987-05-27
ES2016242B3 (es) 1990-11-01
ATE54529T1 (de) 1990-07-15
DE3672568D1 (de) 1990-08-16

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