US3845573A - Apparatus for assembling electrical circuits for experimentation - Google Patents

Apparatus for assembling electrical circuits for experimentation Download PDF

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Publication number
US3845573A
US3845573A US00417405A US41740573A US3845573A US 3845573 A US3845573 A US 3845573A US 00417405 A US00417405 A US 00417405A US 41740573 A US41740573 A US 41740573A US 3845573 A US3845573 A US 3845573A
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base plate
metal
plate
pieces
terminals
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US00417405A
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English (en)
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T Kasamatsu
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    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
    • G09B23/00—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes
    • G09B23/06—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics
    • G09B23/18—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for electricity or magnetism
    • G09B23/183—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for electricity or magnetism for circuits
    • G09B23/185—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for electricity or magnetism for circuits for building block systems

Definitions

  • ABSTRACT Electrical circuit assembling apparatus for experimentation allowing various electronic parts to be located on an insulating base plate, on which terminals are interconnected by means of leads, by making use of magnetic attraction, for which either a metal plate is used underneath the base plate, or block-shaped metal pieces, which latter can be above or below said base plate.
  • a metal plate is attached to the reverse surface of the base plate, and one or more optional unit plates are disposed above the base plate, by the force of the magnetic member, acting through the unit plates, or from below.
  • Metal pieces are connected to each lead and/or terminal of the electronic parts, and these metal pieces are attractedby the magnets; thus an electrical circuit is completed without screw terminals or posts, without soldering, or the like conventional expedients.
  • the primary object of this invention is to provide an experimental electrical circuit assembling apparatus which allows connections to be made between the terminals of the electronic parts, located on the base plate, without utilizing other electrical apparatus (e.g. soldering tools).
  • Another object of the invention is to provide an apparatus for assembling electrical circuits having terminals of the electronic parts that can be freely assembled or disassembled on the base plate.
  • a further object of the invention is to provide a circuitassembling apparatus for experimentation which may have the electronic parts located at any given position on the base plate.
  • FIG. I is a perspective view of an assembling apparatus according to the invention, for making any desired electrical circuit from its components or parts, in a preferred, exemplary embodiment thereof;
  • FIG. 2 is an enlarged partial cross-sectional view of some of the parts shown in FIG. 1;
  • FIG. 3 is a perspective view of the electronic parts of FIG. '2, with the base plate omitted;
  • FIG. 4 is a view similar to that of FIG. 3 but also omitting the unit plate for the parts in question;
  • FIG. 6 is a view, similar to that of FIG. 2, of a modifled or second embodiment according to the invention.
  • FIG. 7 is another modification in accordance with this invention.
  • FIG. 1 constitutes an overall view of the apparatus while FIG. 2 is a sectional view, on an enlarged scale, of a portion of the circuit, FIG. 3 showing the same in a perspective view (with parts omitted).
  • a base plate 1 is made of an electrically insulating material such as synthetic resin, to the reverse or bottom surface of which is attached (e.g., by gluing if necessary) a metal plate 2 made for example of a thin iron sheet. It will be understood that such sheets are readily attracted even by small magnets, as will be described further down.
  • Various electronic parts such as a battery box 3, a choke coil 4, a variable condenser 5, a fixed capacitor 6, a resistor 7, a transistor 8, a diode 9, a transformer 10, etc., and the like can be arranged on the surface of the base plate 1.
  • Theinvention is by no means limited to the use, connection and arrangement of the just enumerated elements.
  • Each electronic part has two or more terminals or posts, generally designated by numeral 16, to which wires 12a, 12b lead from the parts, as shown.
  • wires 12a, 12b lead from the parts, as shown.
  • small flat metal pieces 14a, 1412 are secured to the respective ends of the wires 12a, 12b.
  • the individual electronic parts can be interconnected at their posts 16 (see FIG. 1) by way of jumpers or leads 17 or 17a as shown on a'larger scale in FIG. 5, and to be described later, together with small rod-shaped (or optionally flat) metal pieces 18 applied to the jumper ends, as visible in FIGS. 1, 2 and 5 and elsewhere, for the purposes to be explained in more detail.
  • the capacitor 6 (see FIG. 2) is attached to an optional unit plate 11 of its own, shown in FIG. 3 in perspective, also made of an electrically insulating material such as synthetic resin, plastic and the like.
  • Small, preferably block-shaped magnets 13a, 13b are secured to the unit plates 11, at least partly passing through respective cut-outs therein, and each unit plate is secured to the base plate 1 by the attractive force of the magnet blocks 13a, 13b acting on the plate 2 attached to the reverse or bottom surface of the base plate 1.
  • the metal pieces 14a, 1412 are connected and fixed respectively to the ends of the wires or leads 12a, 12b, e.g., of the capacitor 6, and these pieces 14a, 14b are also attracted by the above-mentioned magnet blocks 13a, 13b.
  • FIG. 5 the jumpers or leads 17, 17a are shown on a larger scale, .the latter being T-shaped with three instead of two terminal metal pieces 18, namely for making connections between three terminals.
  • FIG. 1 only shows the jumpers 17 but it will be easily understood that for example the battery 3 may be connected to more than one point, and then one of the jumpers 17a may serve as a suitable branching. Two parallel or consecutive jumpers 17a may redouble the number of connected points.
  • FIG. 1 it can be seen on the right-hand side of the unit plate 11 which carries the capacitor 6 how two rod-shaped metal pieces 18 meet on top of a single metal piece (140 or b), namely for jumpers leading respectively to and from the choke coil 4 and the resistor 7.
  • the shape of the metal pieces 18 may also be the same as that of the metal pieces 14a, 14b at the terminals 16 mentioned above.
  • An optional method is to fasten in advance the metal pieces 14a, 14b to the magnet blocks 13a, 13b e.g. by an electrically conductive binding or glueing agent as shown in FIG. 2 at 15. This adds mechanical stability between these parts and avoids transient surface resistance effects between the contacting areas.
  • a first modification is constituted by omitting one or all unit plates 11, and using the electronic components with their posts 16, as shown in FIG. 4, particularly if the weight of the parts does not require particular sup port.
  • This figure is the counterpart of FIG. 3, but the overall assembly is not shown (which would be similar to FIG. 2 but omitting therefrom the unit plate 11).
  • the magnets 13a, 13b rest directly on the insulating base plate 1.
  • FIG. 6 shows (in a view similar to that of FIG. 2) again preferably block-shaped magnets 13c, 13d, embedded or pushed into cut-outs or appropriate holes of a base plate la, and a thin metal plate 2a attached to the bottom surface of a unit plate 11a, the surface which faces the top of the base plate la.
  • magnets 1311, b, insulating base plate 1, metal plate 2, and insulating unit plate 11, respectively are similar to and act in a manner like those described before (namely, magnets 1311, b, insulating base plate 1, metal plate 2, and insulating unit plate 11, respectively).
  • the magnet blocks 13c, 13d in plate la attract the iron plate 2a, the unit plate or plates lla being thus fixed onto the base plate la, and the magnets also attracting the metal pieces l4a, b, as described before, connected and fixed to the terminals of the electronic parts, by way of the respective wires 120, b, thereby constituting the electrical terminals.
  • the glueing layer is also shown in this figure although it is of course optional.
  • FIG. 7 shows an arrangement that can be used when the electronic parts are comparatively light, such as the capacitor 6 or the resistor 7, and there are no heavy components (e. g., transformers or the like).
  • the terminals are sufficiently strong to support the units, even when dispensing with the earlier described unit plates (11, 11a).
  • each arrangement uses at least one magnet in each arrangement, such as blocks 13a, 13b in FIGS. 1 to 3 (between plate 1 and the metal pieces 14a, I4b), similar blocks 13c, 13d in FIG. 6 (this time below base plate la), and a plate-shaped magnet 2b in FIG. 7 (again below the plate 1). All other metallic parts are made of a material which is readily attracted and held by the magnets in question.
  • the electronic parts 2 10 required are arranged on the base plate I or la; the unit plate or plates 11, 11a, if provided, are fixed to the base plate by the attracting force of the magnets (the small block-shaped pieces 13a 13d or the single plate 2b); then the electrical terminals 16 of the electronic parts are interconnected by means of the jumpers 17, 17a in accordance with a wiring diagram.
  • Several rod-shaped terminals 18 fit onto each metal piece 14a, 14b.
  • the apparatus of the invention can have units constituting the various electronic parts, and therefore they can be handled more easily; various experimental circuits can be built because each electronic part and the required lead lines or jumpers can be interconnected and detached freely and without difficulty.
  • the inventive apparatus it is not necessary to maintain the position of the electronic parts but they can be moved around to any given or desired part of the base plate. Therefore, various arrangements of the electronic parts can be considered in the assembling circuit, during the experimentation, especially when a transistor radio or the like is assembled where the effect of one coil, for example, can be considered, balanced or eliminated with respect to other coils, transformers and parts (either by changing the orientation or by removing and shifting the part in question to a distant area of the base plate).
  • An apparatus for assembling electrical circuits for experimentation comprising, in combination: an electrically insulating base plate for supporting on one of its surfaces discrete electronic parts which constitute the electrical circuits; each of said parts having at least two wires connected thereto and extending therefrom; small metal pieces constituting terminals for said parts at the ends of said wires; a metal plate substantially coextensive with and adjoining said base plate; blockshaped metal pieces corresponding in number to that of said terminals; jumper leads having at least two metal terminals of a small size, adapted to fit unto said metal pieces, for electrically interconnecting at least two of said terminals; and magnet means constituted by at least one of said metal plate and said block-shaped pieces, for holding together by magnetic attraction said metal pieces, said metal plate, said block-shaped pieces and said jumper terminals when said parts are positioned on said base plate, and thereby constituting the electrical circuits; said metal pieces, said jumper terminals, as well as the remaining ones of said metal plate and said block-shaped pieces being of a material responding to magnetic
  • At least one of said base plate and said at least one unit plate has cut-outs therein for at least partly lodging at least some of said block-shaped pieces.

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  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Business, Economics & Management (AREA)
  • Educational Administration (AREA)
  • Mathematical Optimization (AREA)
  • Mathematical Physics (AREA)
  • Pure & Applied Mathematics (AREA)
  • Computational Mathematics (AREA)
  • Algebra (AREA)
  • Mathematical Analysis (AREA)
  • Educational Technology (AREA)
  • Theoretical Computer Science (AREA)
  • Toys (AREA)
  • Mounting Components In General For Electric Apparatus (AREA)
  • Instructional Devices (AREA)
  • Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
US00417405A 1972-11-17 1973-11-19 Apparatus for assembling electrical circuits for experimentation Expired - Lifetime US3845573A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1972132910U JPS4986148U (enrdf_load_stackoverflow) 1972-11-17 1972-11-17

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US3845573A true US3845573A (en) 1974-11-05

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US00417405A Expired - Lifetime US3845573A (en) 1972-11-17 1973-11-19 Apparatus for assembling electrical circuits for experimentation

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US (1) US3845573A (enrdf_load_stackoverflow)
JP (1) JPS4986148U (enrdf_load_stackoverflow)
DE (1) DE2356874A1 (enrdf_load_stackoverflow)
FR (1) FR2207321A1 (enrdf_load_stackoverflow)
GB (1) GB1424922A (enrdf_load_stackoverflow)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0526090A3 (en) * 1991-07-22 1995-06-21 Lektro Technology Limited Teaching kit
FR2760119A1 (fr) * 1997-02-24 1998-08-28 Daniel Allard Support didactique de travaux pratiques pour l'enseignement de la mecanique appliquee
RU2239872C1 (ru) * 2003-04-23 2004-11-10 Общество с ограниченной ответственностью фирма "СНАРК" Учебное устройство по электротехнике
US20050070163A1 (en) * 2003-09-26 2005-03-31 Redmond Frank E. Systems for and methods of circuit construction
US20050280429A1 (en) * 2004-06-21 2005-12-22 Maxwell William W Method and apparatus for magnetically achieving electrical continuity
US20100048038A1 (en) * 2006-09-15 2010-02-25 In Suk Han Magnetic component connector, circuit boards for use therewith, and kits for building and designing circuits
US20110070570A1 (en) * 2008-05-31 2011-03-24 Stewart Dunn electronic teaching system incorporating magnets in an insulating baseboard
US8272876B2 (en) 2010-07-20 2012-09-25 Magnetic Innovations, L.L.C. Magnetically enhanced electrical signal conduction apparatus and methods
US20120317801A1 (en) * 2011-06-17 2012-12-20 Erli Chen Reusable electronic circuit assembling and testing system and uses thereof
US9631691B2 (en) 2013-06-28 2017-04-25 Magnetic Innovations Llc Vibration dampening devices and methods
US9812034B2 (en) 2015-06-13 2017-11-07 Henry Hyunbo Shim Educational kit for practicing electronic circuit design
US20230098617A1 (en) * 2019-12-06 2023-03-30 Asim Gazi Educational electronic circuit block set and simulation board displaying electric current flow

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3324572A (en) * 1964-08-10 1967-06-13 Thomas J Robarge Electrical instruction kit and connector therefor
US3510963A (en) * 1968-08-28 1970-05-12 Hickok Teaching Systems Inc Teaching system
US3706882A (en) * 1971-02-23 1972-12-19 George W Eby Emergency signal light with magnetic contacts

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS433147Y1 (enrdf_load_stackoverflow) * 1965-04-12 1968-02-09

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3324572A (en) * 1964-08-10 1967-06-13 Thomas J Robarge Electrical instruction kit and connector therefor
US3510963A (en) * 1968-08-28 1970-05-12 Hickok Teaching Systems Inc Teaching system
US3706882A (en) * 1971-02-23 1972-12-19 George W Eby Emergency signal light with magnetic contacts

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0526090A3 (en) * 1991-07-22 1995-06-21 Lektro Technology Limited Teaching kit
FR2760119A1 (fr) * 1997-02-24 1998-08-28 Daniel Allard Support didactique de travaux pratiques pour l'enseignement de la mecanique appliquee
RU2239872C1 (ru) * 2003-04-23 2004-11-10 Общество с ограниченной ответственностью фирма "СНАРК" Учебное устройство по электротехнике
US20050070163A1 (en) * 2003-09-26 2005-03-31 Redmond Frank E. Systems for and methods of circuit construction
US7413481B2 (en) * 2003-09-26 2008-08-19 Redmond Iii Frank E Systems for and methods of circuit construction
US20050280429A1 (en) * 2004-06-21 2005-12-22 Maxwell William W Method and apparatus for magnetically achieving electrical continuity
US7348785B2 (en) * 2004-06-21 2008-03-25 William Wayne Maxwell Method and apparatus for magnetically achieving electrical continuity
US20100048038A1 (en) * 2006-09-15 2010-02-25 In Suk Han Magnetic component connector, circuit boards for use therewith, and kits for building and designing circuits
US7758349B2 (en) * 2006-09-15 2010-07-20 Mr Board, Inc. Magnetic component connector, circuit boards for use therewith, and kits for building and designing circuits
US20110070570A1 (en) * 2008-05-31 2011-03-24 Stewart Dunn electronic teaching system incorporating magnets in an insulating baseboard
US8272876B2 (en) 2010-07-20 2012-09-25 Magnetic Innovations, L.L.C. Magnetically enhanced electrical signal conduction apparatus and methods
US8403680B2 (en) 2010-07-20 2013-03-26 Magnetic Innovations Llc Magnetically enhanced electrical signal conduction apparatus and methods
US9326379B2 (en) 2010-07-20 2016-04-26 Magnetic Innovations Llc Magnetically enhanced electrical signal conduction apparatus and methods
US9992869B2 (en) 2010-07-20 2018-06-05 Magnetic Innovations Llc Magnetically enhanced electrical signal conduction apparatus and methods
US10045440B1 (en) 2010-07-20 2018-08-07 Magnetic Innovations Llc Magnetically enhanced electrical signal conduction apparatus and methods
US20120317801A1 (en) * 2011-06-17 2012-12-20 Erli Chen Reusable electronic circuit assembling and testing system and uses thereof
CN103703624A (zh) * 2011-06-17 2014-04-02 陈而立 可重复使用的电子电路组装和测试系统及其应用
US8991040B2 (en) * 2011-06-17 2015-03-31 5eTek, LLC Reusable electronic circuit assembling and testing system and uses thereof
CN103703624B (zh) * 2011-06-17 2016-08-10 陈而立 可重复使用的电子电路组装和测试系统及其应用
US9631691B2 (en) 2013-06-28 2017-04-25 Magnetic Innovations Llc Vibration dampening devices and methods
US9812034B2 (en) 2015-06-13 2017-11-07 Henry Hyunbo Shim Educational kit for practicing electronic circuit design
US20230098617A1 (en) * 2019-12-06 2023-03-30 Asim Gazi Educational electronic circuit block set and simulation board displaying electric current flow
US11806632B2 (en) * 2019-12-06 2023-11-07 Asim Gazi Educational electronic circuit block set and simulation board displaying electric current flow

Also Published As

Publication number Publication date
DE2356874A1 (de) 1974-05-22
JPS4986148U (enrdf_load_stackoverflow) 1974-07-25
FR2207321A1 (enrdf_load_stackoverflow) 1974-06-14
GB1424922A (en) 1976-02-11

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