US3862512A - Sets of building blocks of different sizes - Google Patents

Sets of building blocks of different sizes Download PDF

Info

Publication number
US3862512A
US3862512A US841498A US84149869A US3862512A US 3862512 A US3862512 A US 3862512A US 841498 A US841498 A US 841498A US 84149869 A US84149869 A US 84149869A US 3862512 A US3862512 A US 3862512A
Authority
US
United States
Prior art keywords
connectors
blocks
block
plug
socket
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US841498A
Other languages
English (en)
Inventor
Georg Vogel
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of US3862512A publication Critical patent/US3862512A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63H—TOYS, e.g. TOPS, DOLLS, HOOPS OR BUILDING BLOCKS
    • A63H33/00—Other toys
    • A63H33/04—Building blocks, strips, or similar building parts
    • A63H33/06—Building blocks, strips, or similar building parts to be assembled without the use of additional elements
    • A63H33/08—Building blocks, strips, or similar building parts to be assembled without the use of additional elements provided with complementary holes, grooves, or protuberances, e.g. dovetails
    • A63H33/086—Building blocks, strips, or similar building parts to be assembled without the use of additional elements provided with complementary holes, grooves, or protuberances, e.g. dovetails with primary projections fitting by friction in complementary spaces between secondary projections, e.g. sidewalls

Definitions

  • ABSTRACT In a building block set made up of a plurality of blocks of different sizes, the blocks are provided with plugand-socket connectors. Those blocks which have a relatively small number of such connectors have the latter designed to provide a relatively tight fit, while those blocks which have a relatively large number of the plug-and-soeket connectors have the latter designed to provide a looser fit.
  • the invention relates to building block sets made up of blocks of different sizes and having plug-and-socket connectors in the form of plugs situated on one side and sockets situated on the oppositev side of the blocks.
  • a relatively large number of building blocks of this type use, to provide the interconnection between the blocks, a clamping type of connection resulting from the fact that one part of the connecting structure is elastic so as to be deformable for the purpose of holding the connected parts together with the required force.
  • Such building blocks must be made of a relatively soft plastic which is expensive and which suffers from fatigue and failrue after a given period of use. As a result, the clamping force for the required connection is no longer effective to hold the parts together so that with blocks of this type models or other structures which are built easily fall apart.
  • each plug portion and its aligned opposed socket portion forms a connector element having a common axis for the plug-and-socket portions.
  • the advantage of this type of construction resides in the fact that the assembling of such blocks in exceedingly simple and can even be carried out by small children.
  • the difficulty with this type of construction resides in the fact that the assembly of the blocks is easy or difficult to carry out, depending on the number of plug-and-socket connectors. Blocks which have a relatively small number of such connectors will generally not have the required connection with each other which will hold them reliably together, while blocks which have a relatively large number of these connectors can, perhaps, be assembled by children but cannot be taken apart.
  • An important object of the invention is to provide a construction where even relatively large blocks not only can be assembled connected with other blocks but also can be disassembled or disconnected from other blocks even by relatively small children who cannot exert a substantial force.
  • Another object of the invention is to provide a set of blocks where small blocks which have a relatively small number of connectors can reliably be connected with other blocks, even relatively large blocks, which have a relatively large number of connectors, while at the same time presenting no difficulty with respect to disassembly of the blocks from each other.
  • the blocks which have plug portions of the connectors on one side and socket portions of the connectors on an opposite side are designed in such a way that those blocks which have a relatively small number of connectors provide for the small number of connectors a relatively tight fit while those blocks which have a relatively large number of connectors provide a relatively loose fit for the larger number of connectors.
  • the tight fit provides nevertheless a sufficiently reliably connection even when such a small block is joined to a block of larger size.
  • the blocks are larger size with the larger number of plug-and-socket connectors provide for the latter connectors a looser fit.
  • any combination of building blocks of different sizes may be put together while reliably achieving the required interconnecting force between the blocks of a given model or other struccture which is built.
  • the building blocks of the invention any combination of building blocks of different sizes may be put together while reliably achieving the required interconnecting force between the blocks of a given model or other struccture which is built.
  • the relatively loose fit with the larger blocks can, according to a further feature of the invention, be achieved by providing for the plug-and-socket portions a pair of different diameters so that one part of the connectors will have a tight fit while the remainder thereof will have a loose fit. Where those connectors are distributed in a plurality of rows with gaps therebetween, the connectors of loose and tight fit alternate with each other.
  • a further simplification of the structure for the injection molded type of building block is achieved by providing the plug-and-socket portions of each connector with a stepped construction along the common axis of each plug-and-socket of a given connector.
  • the outer part of each connector serves only as a guide while the inner part provides the preselected fit.
  • the axial length or height of the part of the connector which provides the preselected fit can be selected in such a way as to achieve either a loose fit or a tight fit.
  • the design of the building blocks is carried out in such a way that the building block is in the form of a hollow body with the plug-and-socket connectors forming a plurality of hollow connector bodies which are closed on one side where the plug portions are located while being open at that side where the socket portions are located, the socket portions extending inwardly from a closed side of the block while the plug portions extend from the open side of the block with side walls of the block forming parts of the connectors.
  • FIG. 1 is a perspective illustration of a block of the invention having only a single plug-and-socket connector
  • FIG. 2 shows, in a perspective view, a block of the invention having a pair of connectors
  • FIG. 3 shows, in a perspective illustration, a block of the invention having eight connectors
  • FIG. 4 is a perspective illustration of a block in the form of a plate having 13 rows of connectors distributed along the longer dimension of the block with the connectors of each row separated by nine gaps therebetween;
  • FIG. 5 is a transverse sectional elevation of a block of the invention where the section is taken through the connectors;
  • FIG. 6 is a transverse sectional elevation of the block of FIG. 5 where the section is taken between connectors.
  • a block A illustrated in FIG. 1 forms the smallest component of the set of building blocks.
  • the building block A shown in FIG. 1 is a cubic configuration and has square side surfaces.
  • the plug-and-socket connector of the block A includes a central socket extending, as shown, into the block A from the top surface thereof, and situated centrally with respect to this top surface, while a plug portion la of the connector extends from the bottom surface of the block A and is coaxial with the socket portion 2a, so that the plug portion la is also centrally situated at the surface of the block from which it extends.
  • the shading provided for the plug-and-socket portions la and 2a is used to indicate that the diameters chosen for the plug-and-socket connector of FIG. 1 are of a size which will provide a relatively tight fit with other blocks with which the block A is connected.
  • the tight fit is achieved in a simple manner by providing for the socket portion 2a a diameter which is smaller than the normal diameter and for the diameter of the plug portion la a diameter which is greater than the normal diameter.
  • a pair of plug-and-socket connectors each being composed ofa plug portion 1a and a socket portion 2a coaxial therewith and situated at the face of the block opposed to the plug portions.
  • a tight fit is provided as indicated by the shaded illustration of the connectors. Where blocks have less than three connectors, such tight fits will be provided in accordance with the invention.
  • a block C illustrated therein has eight connectors made up of the several plug portions 1b extending from the bottom face of the clock and the socket portions 2a and 2b extending into the block from the top surface thereof, as viewed in FIG. 3.
  • the shaded sockets 2a have the tight fit while the other sockets 212 have a relatively loose fit. It is therefore easy to see that when blocks A and B are connected to the block C there will always be a good reliable connection between the blocks even when the individual plug portion 1a of the block A is received in a socket portion 2b of the block C.
  • the tight and loose fitting sockets alternate with each other so that irrespective of how the block B is joined to the block C there will only be one tight fit, with the other fit of the other connector being loose. If a pair of blocks C are connected to each other, thereby providing the block with plug portions 1b of the same diameter, which is the normal diameter, only half of the plug portions will have tight fits.
  • the block of FIG. 4 is in the form ofa plate D having several rows of connectors with gaps therebetween.
  • the number of connectors which will have a tight fit can be reduced so that even relatively large plates which form the building blocks can be easily disassembled from each other while being reliably connected together.
  • Even relatively small blocks with only one or two connectors can be reliably connected with a block D in the form of a plate since the plug portion la has a diameter greater than the normal diameter.
  • blocks which have at least four connectors in a row or arranged in a square pattern there is always one connector socket 20 having a press fit in the distribution shown for the block D of FIG. 4 so that with this one out of four connectors providing a tight fit there will be a reliable connection between blocks of any sizes.
  • the socket portions of the connectors can be stepped so as to have portions 20 and 2d.
  • the outer portion 2c serves in this case only as a guide for a plug portion of the connector of another block while the inner part 2d of the socket provides the required fit with the plug portion of the other block. It is possible to determine the nature of the fit by selecting a proper height or axial length for the portion 2d of the connector.
  • set of blocks of the invention can also be built with connectors having sockets of only one size and having plugs of different sizes, some of which may even be stepped.
  • the individual connectors are made up of a socket portion and plug portion in the form of a hollow plug closed on one side and having the socket portion 20, 2d which extends from the closed side 4 while the plug portions are situated at the open side 5 of the block, as illustrated in FIGS. 5 and 6.
  • the hollow connectors are formed at least in part from the box-shaped outer side walls 3 of the block. As is apparent from FIG. 5, the hollow connectors form over their entire height part of the outer side wall structure 3 of the block.
  • the block has at least a pair of rows of uniformly distributed connectors
  • the possibility of assembling the blocks in all directions can be provided.
  • One side of the block carries the plug portions of the connectors while the opposite side is provided with the corresponding socket portions, while each connector is made up of a plug portion and socket portion in the form of a hollow body as shown in the sectional illustration of FIG. 5.
  • the socket portion extends inwardly from the side 4 of the block while the plug portion 1 extends from the opposite side 5 of the block.
  • the wall thickness of the connectors at the interior plug portions 2d is the same as the wall thickness of the outer side walls 3, so that one of the other walls of the block will form part of the connector structure.
  • the capability of uniting the blocks in all directions is assured by providing between a pair of adjoining longitudinal transverse rows of socket portions of the connectors a distance which is twice as great as the wall thickness of the block.
  • a building block set comprising a plurality of blocks of different sizes each having at least one connector for connecting the blocks to eachother, said connector including a plug projecting from a block at one of the faces thereof and a socket formed in the block at the opposed face thereof and aligned with said plug, the connectors of those blocks of the set which have less than three connector being formed of one size to provide a relatively tight fit for all of said less than three connectors thereon while the connectors of those blocks which have more than three being formed with some of the aligned plug-and-sockets of the same size to provide a tight fit and some sockets of a larger size than their associated plugs to provide a looser fit for some but not all of the connectors thereof, said connectors on said larger blocks being arranged so that no two connectors of relatively tight fit be adjacent each other.
  • each connector has a common axis along which at least one of said portions is stepped to have an outer guiding region and an inner region providing a preselected fit.
  • each block is in the form of a hollow body having a hollow inner surface forming a socket and exterior surface forming a plug and closing the body on one side, the closed side of each body extending from the hollow opening which forms each socket and said hollow plugand-socket connectors forming at edge regions of the block at least part of the outer wall of each block.

Landscapes

  • Connector Housings Or Holding Contact Members (AREA)
  • Toys (AREA)
US841498A 1968-08-08 1969-07-14 Sets of building blocks of different sizes Expired - Lifetime US3862512A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19681703980 DE1703980A1 (de) 1968-08-08 1968-08-08 Bausatz mit verschieden grossen Steckbausteinen

Publications (1)

Publication Number Publication Date
US3862512A true US3862512A (en) 1975-01-28

Family

ID=5688650

Family Applications (1)

Application Number Title Priority Date Filing Date
US841498A Expired - Lifetime US3862512A (en) 1968-08-08 1969-07-14 Sets of building blocks of different sizes

Country Status (6)

Country Link
US (1) US3862512A (de)
JP (1) JPS4944613B1 (de)
AT (1) AT311226B (de)
BR (1) BR6911682D0 (de)
CA (1) CA934552A (de)
DE (1) DE1703980A1 (de)

Cited By (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4239231A (en) * 1978-07-28 1980-12-16 Henderson David G Three-dimensional domino game
US4522001A (en) * 1982-04-01 1985-06-11 Anton Meyer Set of bricks with plugging connections
US4629192A (en) * 1985-05-20 1986-12-16 Franklin Nichols Interlocking puzzle blocks
US5391103A (en) * 1992-02-24 1995-02-21 Mak; Dong K. Building block configured for plural connections
USD377532S (en) * 1995-11-07 1997-01-21 Lin Kuo Y Building block
US5785530A (en) * 1996-04-09 1998-07-28 Deroyal Industries, Inc. Method and apparatus for visually depicting in three dimensions a health care treatment regimen for a given medical diagnosis
US20040119234A1 (en) * 1999-01-08 2004-06-24 Mackey Thomas J. Miniature toy gaming equipment
US6857633B1 (en) * 1999-01-08 2005-02-22 Dagoom, Inc. Castle blocks board game
WO2006083084A1 (en) * 2005-02-04 2006-08-10 Kyongchul Yang Puzzle
US20090205997A1 (en) * 2008-02-19 2009-08-20 Barry Richards Play Construction Kit
US9019718B2 (en) 2011-08-26 2015-04-28 Littlebits Electronics Inc. Modular electronic building systems with magnetic interconnections and methods of using the same
US9293916B2 (en) 2009-07-15 2016-03-22 Yehuda Binder Sequentially operated modules
US9597607B2 (en) 2011-08-26 2017-03-21 Littlebits Electronics Inc. Modular electronic building systems with magnetic interconnections and methods of using the same
USD813317S1 (en) 2017-03-30 2018-03-20 Chrome Cherry Design Studio (Pty) Ltd Tape forming a toy building block base
USD813318S1 (en) 2017-03-30 2018-03-20 Chrome Cherry Design Studio (Pty) Ltd Tape forming a toy building block base
USD815216S1 (en) 2017-03-30 2018-04-10 Chrome Cherry Design Studio (Pty) Ltd Tape forming a toy building block base
US10155153B2 (en) 2009-08-06 2018-12-18 Littlebits Electronics, Inc. Puzzle with conductive path
USD897451S1 (en) 2017-07-06 2020-09-29 Chrome Cherry Design Studio (Pty) Ltd Tape forming a toy building block base
USD930085S1 (en) * 2021-01-13 2021-09-07 Laltitude Llc Transparent block
USD930758S1 (en) * 2021-01-13 2021-09-14 Laltitude Llc Transparent block
USD933136S1 (en) * 2021-01-13 2021-10-12 Laltitude Llc Transparent block
USD936154S1 (en) * 2021-01-13 2021-11-16 Laltitude Llc Transparent block
USD936155S1 (en) * 2021-01-13 2021-11-16 Laltitude Llc Transparent block
US11330714B2 (en) 2011-08-26 2022-05-10 Sphero, Inc. Modular electronic building systems with magnetic interconnections and methods of using the same
US11325052B2 (en) * 2020-03-02 2022-05-10 Michael Porter Interlocking block wall mount
US11616844B2 (en) 2019-03-14 2023-03-28 Sphero, Inc. Modular electronic and digital building systems and methods of using the same

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55166526U (de) * 1979-05-16 1980-11-29
US5250000A (en) * 1992-04-07 1993-10-05 Boutin Stephen J Play kit with detachable play surface
DK112094A (da) * 1994-09-29 1996-03-30 Lego As Stableklodssystem
AU347408S (en) * 2012-08-24 2013-03-04 Littlebits Electronics Inc Connector for modular electronic building system

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1207504A (en) * 1916-04-12 1916-12-05 Atherton D Converse Set of toy building-blocks.
US2709318A (en) * 1952-11-24 1955-05-31 W R Benjamin Co Toy construction elements
US3481068A (en) * 1965-07-08 1969-12-02 Playskool Inc Toy blocks with means permitting greater tolerance in the alignment of male and female connectors

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1207504A (en) * 1916-04-12 1916-12-05 Atherton D Converse Set of toy building-blocks.
US2709318A (en) * 1952-11-24 1955-05-31 W R Benjamin Co Toy construction elements
US3481068A (en) * 1965-07-08 1969-12-02 Playskool Inc Toy blocks with means permitting greater tolerance in the alignment of male and female connectors

Cited By (57)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4239231A (en) * 1978-07-28 1980-12-16 Henderson David G Three-dimensional domino game
US4522001A (en) * 1982-04-01 1985-06-11 Anton Meyer Set of bricks with plugging connections
US4629192A (en) * 1985-05-20 1986-12-16 Franklin Nichols Interlocking puzzle blocks
US5391103A (en) * 1992-02-24 1995-02-21 Mak; Dong K. Building block configured for plural connections
USD377532S (en) * 1995-11-07 1997-01-21 Lin Kuo Y Building block
US5785530A (en) * 1996-04-09 1998-07-28 Deroyal Industries, Inc. Method and apparatus for visually depicting in three dimensions a health care treatment regimen for a given medical diagnosis
US20040119234A1 (en) * 1999-01-08 2004-06-24 Mackey Thomas J. Miniature toy gaming equipment
US6857633B1 (en) * 1999-01-08 2005-02-22 Dagoom, Inc. Castle blocks board game
US20050189715A1 (en) * 1999-01-08 2005-09-01 Dagoom, Inc. Gaming equipment and methods
US20060033277A1 (en) * 1999-01-08 2006-02-16 Dagoom, Inc. Toy gaming equipment
WO2006083084A1 (en) * 2005-02-04 2006-08-10 Kyongchul Yang Puzzle
US20090205997A1 (en) * 2008-02-19 2009-08-20 Barry Richards Play Construction Kit
US10177568B2 (en) 2009-07-15 2019-01-08 Yehuda Binder Sequentially operated modules
US10617964B2 (en) 2009-07-15 2020-04-14 May Patents Ltd. Sequentially operated modules
US11027211B2 (en) 2009-07-15 2021-06-08 May Patents Ltd. Sequentially operated modules
US9559519B2 (en) 2009-07-15 2017-01-31 Yehuda Binder Sequentially operated modules
US9583940B2 (en) 2009-07-15 2017-02-28 Yehuda Binder Sequentially operated modules
US9590420B2 (en) 2009-07-15 2017-03-07 Yehuda Binder Sequentially operated modules
US9595828B2 (en) 2009-07-15 2017-03-14 Yehuda Binder Sequentially operated modules
US11014013B2 (en) 2009-07-15 2021-05-25 May Patents Ltd. Sequentially operated modules
US9673623B2 (en) 2009-07-15 2017-06-06 Yehuda Binder Sequentially operated modules
US10981074B2 (en) 2009-07-15 2021-04-20 May Patents Ltd. Sequentially operated modules
US10864450B2 (en) 2009-07-15 2020-12-15 May Patents Ltd. Sequentially operated modules
US11383177B2 (en) 2009-07-15 2022-07-12 May Patents Ltd. Sequentially operated modules
US9293916B2 (en) 2009-07-15 2016-03-22 Yehuda Binder Sequentially operated modules
US10758832B2 (en) 2009-07-15 2020-09-01 May Patents Ltd. Sequentially operated modules
US10158227B2 (en) 2009-07-15 2018-12-18 Yehuda Binder Sequentially operated modules
US10164427B2 (en) 2009-07-15 2018-12-25 Yehuda Binder Sequentially operated modules
US11207607B2 (en) 2009-07-15 2021-12-28 May Patents Ltd. Sequentially operated modules
US10230237B2 (en) 2009-07-15 2019-03-12 Yehuda Binder Sequentially operated modules
US10589183B2 (en) 2009-07-15 2020-03-17 May Patents Ltd. Sequentially operated modules
US10569181B2 (en) 2009-07-15 2020-02-25 May Patents Ltd. Sequentially operated modules
US10355476B2 (en) 2009-07-15 2019-07-16 Yehuda Binder Sequentially operated modules
US10396552B2 (en) 2009-07-15 2019-08-27 Yehuda Binder Sequentially operated modules
US10447034B2 (en) 2009-07-15 2019-10-15 Yehuda Binder Sequentially operated modules
US10155153B2 (en) 2009-08-06 2018-12-18 Littlebits Electronics, Inc. Puzzle with conductive path
US11896915B2 (en) 2009-08-06 2024-02-13 Sphero, Inc. Puzzle with conductive path
US10987571B2 (en) 2009-08-06 2021-04-27 Sphero, Inc. Puzzle with conductive path
US10256568B2 (en) 2011-08-26 2019-04-09 Littlebits Electronics Inc. Modular electronic building systems with magnetic interconnections and methods of using the same
US10244630B2 (en) 2011-08-26 2019-03-26 Littlebits Electronics Inc. Modular electronic building systems with magnetic interconnections and methods of using the same
US9019718B2 (en) 2011-08-26 2015-04-28 Littlebits Electronics Inc. Modular electronic building systems with magnetic interconnections and methods of using the same
US11330714B2 (en) 2011-08-26 2022-05-10 Sphero, Inc. Modular electronic building systems with magnetic interconnections and methods of using the same
US9831599B2 (en) 2011-08-26 2017-11-28 Littlebits Electronics Inc. Modular electronic building systems with magnetic interconnections and methods of using the same
US9597607B2 (en) 2011-08-26 2017-03-21 Littlebits Electronics Inc. Modular electronic building systems with magnetic interconnections and methods of using the same
US9419378B2 (en) 2011-08-26 2016-08-16 Littlebits Electronics Inc. Modular electronic building systems with magnetic interconnections and methods of using the same
USD815216S1 (en) 2017-03-30 2018-04-10 Chrome Cherry Design Studio (Pty) Ltd Tape forming a toy building block base
USD928890S1 (en) 2017-03-30 2021-08-24 Chrome Cherry Design Studio (Pty) Ltd Tape forming a toy building block base
USD813318S1 (en) 2017-03-30 2018-03-20 Chrome Cherry Design Studio (Pty) Ltd Tape forming a toy building block base
USD813317S1 (en) 2017-03-30 2018-03-20 Chrome Cherry Design Studio (Pty) Ltd Tape forming a toy building block base
USD897451S1 (en) 2017-07-06 2020-09-29 Chrome Cherry Design Studio (Pty) Ltd Tape forming a toy building block base
US11616844B2 (en) 2019-03-14 2023-03-28 Sphero, Inc. Modular electronic and digital building systems and methods of using the same
US11325052B2 (en) * 2020-03-02 2022-05-10 Michael Porter Interlocking block wall mount
USD930085S1 (en) * 2021-01-13 2021-09-07 Laltitude Llc Transparent block
USD930758S1 (en) * 2021-01-13 2021-09-14 Laltitude Llc Transparent block
USD933136S1 (en) * 2021-01-13 2021-10-12 Laltitude Llc Transparent block
USD936154S1 (en) * 2021-01-13 2021-11-16 Laltitude Llc Transparent block
USD936155S1 (en) * 2021-01-13 2021-11-16 Laltitude Llc Transparent block

Also Published As

Publication number Publication date
DE1703980A1 (de) 1972-03-09
BR6911682D0 (pt) 1973-02-01
AT311226B (de) 1973-11-12
CA934552A (en) 1973-10-02
JPS4944613B1 (de) 1974-11-29

Similar Documents

Publication Publication Date Title
US3862512A (en) Sets of building blocks of different sizes
US3042895A (en) Interlocked electrical connectors
US3005282A (en) Toy building brick
US3205611A (en) Hollow blocks and tubular connecting means therefor
US3611609A (en) Toy construction elements connectible by projections in recesses
US3162973A (en) Toy building element
US3034254A (en) Toy building sets and building blocks
US3496670A (en) Hollow construction toy with hinged connector
US2783046A (en) Ball
US8262380B2 (en) Injection mold
US3570170A (en) Toy block with internal lattice and lobes
WO2019108378A1 (en) Spacing connector for toy construction set
US3389493A (en) Building block toy set
US20070077854A1 (en) Sectional three-dimensional model
JPH0691061A (ja) 玩具用積み木部品としての差込みブロック
JPS5931192B2 (ja) モジユ−ルプラグ
US4913665A (en) Multi-pole plug connector with coding elements
US3605322A (en) Interlocking toy blocks
JPH11154563A (ja) コネクタ用極性キー付カバー
US3919785A (en) Modular block construction system
JPH0458606B2 (de)
US4320253A (en) Ceramic beads for heaters
US20060048475A1 (en) Building block
US20210146270A1 (en) Polyhedral toy
KR100902755B1 (ko) 조립완구용 튜브 연결체