US3479763A - Assembly kit having dovetail connection with reduced contact area - Google Patents

Assembly kit having dovetail connection with reduced contact area Download PDF

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Publication number
US3479763A
US3479763A US514165A US3479763DA US3479763A US 3479763 A US3479763 A US 3479763A US 514165 A US514165 A US 514165A US 3479763D A US3479763D A US 3479763DA US 3479763 A US3479763 A US 3479763A
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US
United States
Prior art keywords
groove
grooves
assembly kit
members
socket member
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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
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US514165A
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English (en)
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Artur Fischer
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Individual
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Individual
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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
    • A63H33/084—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 grooves
    • 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
    • A63H33/065—Building blocks, strips, or similar building parts to be assembled without the use of additional elements using elastic deformation
    • 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
    • A63H33/082—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 dovetails

Definitions

  • a socket member has a first exposed surface which is provided with a groove of undercut configuration having an outer portion adjacent to the exposed surface and an inner portion bounded by an interior surface and increasing in width in a direction inwardly away from the outer portion.
  • a plug member is provided having a second exposed surface from which a connecting projection extends which is adapted to be received in the groove.
  • the projection includes a neck por tion which is to be received in the outer portion of the groove and a head which is to be slidably received in the inner portion of the groove and which has a crosssectional area smaller than that of the inner portion so that the projection will be in engagement with the interior surface only in the region adjacent the outer portion of the groove.
  • the present invention relates to an assembly kit. More specifically, the invention relates to a kit of the type with which various structures can be assembled from building blocks provided in the kit. Still more specifically, the invention relates to a kit of the above type in which the building blocks are connected together by way of connecting formations respectively provided on the building blocks themselves or in the form of separate members.
  • Assembly kits utilizing building blocks of the type mentioned above are known.
  • the basic building blocks are provided with grooves which extend inwardly of one or more exposed faces of the blocks and Whose cross-sectional area increases in the direction inwardly away from such exposed faces.
  • the area is narrower than inwardly thereof, whereby a slot is defined in the surface.
  • Heads or connecting members of a configuration substantially similar to the cross-sectional area of the grooves are provided on other blocks or in the form of separate connecting members, and these connecting members or heads are receivable in the grooves. They are joined to necks which are only as wide or just slightly wider than the slots and which extend outwardly through such slots so as to connect additional elements to the first building block. 7
  • a more specific object of the present invention is to provide a connecting system as has been outlined above, in which allowance is made for the almost inevitable tolerance variations which occur during manufacturing of building blocks and connecting means, so that tight connections are achieved with the above system while yet the respective members are movable relative to one another with reasonable case.
  • I provide, in an assembly kit, a combination of a socket member which has an exposed surface provided with a groove. This groove has a portion adjacent to the exposed surface and increases in width in a direction away from said surface. I further provide a plug member having a connecting means, including a connecting portion which slidably extends into the groove so as to at least partially fill the same, and a neck portion on the connecting portion and received in said portion of the groove. Finally, I provide means for enhancing the flexibility of that part of the socket member which surrounds the groove so that, upon insertion of the connecting means into the groove, the surrounding part of the socket member can yield to pressure exerted by the connecting means.
  • FIG. 1 is an end view of a building block embodying the invention in one example
  • FIG. 2 shows a modified embodiment of the invention in a partial end view
  • FIG. 3 shows yet a further modification of this invention in a view similar to that of FIG. 2;
  • FIG. 4 is a top-plan view of a structural member embodying the invention.
  • FIG. 5 is an end view, partly in section, of yet a further embodiment of the invention.
  • FIGS. 6-8 show a building block embodying a modification of the invention in a top-plan view, a side view and a bottom view, and
  • FIG. 9 shows the components of FIG. 8 separated for clarity of explanation.
  • FIG. 1 a building block such as disclosed in my above-mentioned copending application.
  • This building block is designated with reference numeral 1. It is provided with the grooves 2 which are narrow adjacent the exposed surfaces of the building block and widen in their cross-sectional area inwardly of these exposed surfaces.
  • One end face of the building block shown in FIG. 1 is provided with a cylindrical connecting member or head 3 which is joined to the building block by means of a narrow neck portion 15a (see FIG. 5).
  • the other end face may also be provided with a connecting member or head 3, but I prefer to provide it instead with crossed grooves 2 (not shown).
  • Such plate-like members may be small pieces of clear plastic which may serve as windows in a structure built from the present assembly kit.
  • FIG. 2 shows a modification of the embodiment in FIG. 1.
  • the grooves 2a are not of substantially cylindrical cross section as in FIG. 1, but are rather of the dove-tail type.
  • the resiliency-promoting slots are indicated with reference numeral 4a and extend again parallel to the grooves 2a; furthermore, they are slanted at the same angle at which the respective side walls of the grooves 2a are slanted.
  • FIG. 3 it will be seen that the grooves provided in the socket member 5 are designated with reference numeral 212 and are of substantially rectangular cross-section.
  • the lip portions that is the portions which define the area of narrow cross-section adjacent the exposed surface of the socket member 5, are formed by projections 5a which project from either side of the grooves 2b towards the center, but do not meet.
  • slots 4 extend parallel to the grooves 2b with slight spacing therefrom. It will be seen that in the embodiments of FIGS. 2 and 3 such slots extend on either side of grooves 2a and 2b; however, this is of course not necessary and it is possible to provide slots only on one side as is clearly indicated in the embodiment of FIG. 1.
  • FIG. 4 is a topplan view of the embodiment shown in FIG.
  • the socket member 5 is further provided with a bore, as shown in FIG. 4, which is designated with reference numeral 6 and is preferably centrally located.
  • the bore 6 receives an auxiliary rnmeber, such as a cylindrical rod which may serve as an axle, a pivot point or for similar purposes.
  • this groove could also have crosssections different from the areas shown.
  • lips 12a on either side of the slot. These lips are made more elastic by the provision of at least one additional slot 13 which extends parallel to the groove 12 'as described with reference to the embodiment of FIG. 1.
  • a second socket member or building block 14 is provided with a head or conecting member 15 of complementary-in this case circularcross-section which is secured to the socket member 14 by means of a narrow neck 15a.
  • the cylindrical connecting member 15 is not quite complementary to the cross-section of the groove 12 so that, when it is received, its longitudinal axis is slightly offset from the longitudinal axis of groove 12 in the direction toward the lips 12a.
  • the connecting member 15 will engage the wall surrounding groove 12 only over part of its surface inwardly adjacent the lips 12a.
  • the neck 15a is slightly wider than the spacing of the lips 12a so that there is a resilient deflection of the surrounding material of member 11 which is made possible by provision of the slot 13. It will be understood that the fact that the connecting member 15 does not engage the surrounding wall of groove 12 over its entire surface area, makes it much more easy to insert and slide the head or connecting member 15 within the groove 12.
  • FIGS. 68 shows that it is also possible to dispense with the parallel slot 13 and to provide instead a slot which may be formed at the bottom of groove 12 and extends inwardly toward the center of the respective member 11. This is also shown in FIG. 9, where the dimension 0 of the neck is slightly shorter than the dimension d.
  • the socket member 11 is provided with the usual grooves 12. one in each longitudinal surface, and is thus divided into four segments 11a.
  • the provision of the slots 13' at the bottom of the respective grooves 12 imparts increased flexibility to the respective segments 11a. The effect is the same as with the provision of the grooves 13 along and parallel to the grooves 12 as shown in the other figures.
  • the members in accordance with the invention are preferably provided from a plastic material, of which polyamide has been found particularlysuitable because of its toughness and resiliency. However, other materials may be used.
  • a socket member having a first exposed surface provided with a groove, said groove having an outer portion adjacent to said exposed surface and an inner portion bounded by an interior surface and increasing in width in a direction inwardly away from said first surface and from said outer portion; and a plug member having a second exposed surface provided with a projecting connecting means adapted to be received in said groove
  • said connecting means including a neck portion adapted to be received in said outer portion of said groove and a connecting portion adapted to slidably extend into said inner portion of said groove, said neck portion having a length which is less than the depth of said outer portion of said groove so that when said connecting means is received in said groove said first and second surfaces will be biased against one another, and said conecting portions of said connecting means having a cross-sectional area smaller than that of said inner portion of said groove and a height which is smaller than the depth of said inner portion so that when said connecting means is received in said groove said connecting portion frictionally engages said interior surface of said inner portion only in the region adjacent to said
  • said socket member further comprising slot means extending adjacent to said groove for enhancing the flexibility of said socket member in the region of said groove.

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  • Complex Calculations (AREA)
  • Joining Of Building Structures In Genera (AREA)
US514165A 1964-11-13 1965-11-08 Assembly kit having dovetail connection with reduced contact area Expired - Lifetime US3479763A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEF0044435 1964-11-13
DEF0045561 1965-03-18

Publications (1)

Publication Number Publication Date
US3479763A true US3479763A (en) 1969-11-25

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ID=25976555

Family Applications (1)

Application Number Title Priority Date Filing Date
US514165A Expired - Lifetime US3479763A (en) 1964-11-13 1965-11-08 Assembly kit having dovetail connection with reduced contact area

Country Status (9)

Country Link
US (1) US3479763A (fr)
BE (1) BE671742A (fr)
CH (1) CH438122A (fr)
CS (1) CS156403B2 (fr)
FI (1) FI43278B (fr)
IL (1) IL24566A (fr)
NL (1) NL6513348A (fr)
NO (1) NO118425B (fr)
SE (1) SE327937B (fr)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3601738A (en) * 1967-11-27 1971-08-24 Int Standard Electric Corp Protection units and mounting tool
US3676969A (en) * 1970-04-03 1972-07-18 Dan B Moore Log type building unit
US4035947A (en) * 1975-08-21 1977-07-19 Burge David A Toy construction set having interconnectible components with interfitting formations
US4617001A (en) * 1981-06-02 1986-10-14 Parein Eric W Elements of a construction or assembly set, and accessories
US4789370A (en) * 1987-02-11 1988-12-06 Go Images, Inc. Apparatus for interlocking structural elements of toy disks
US5239803A (en) * 1991-11-07 1993-08-31 Shannon Stephen J Single-component-type structural system
US5918999A (en) * 1998-03-27 1999-07-06 Lamarca; Guy M. Geometric spacial frame assembly
US6250986B1 (en) * 1999-02-08 2001-06-26 Soren Christian Sorensen Building element for set of toy building blocks
US6824440B2 (en) * 2001-01-19 2004-11-30 Alexander Brener Element of erection set, and erection set provided therewith
US7648407B1 (en) 2005-07-14 2010-01-19 Soren Christian Sorensen Toy-building elements having sidewall grooves formed between outwardly extending flexible ridges
US20160089615A1 (en) * 2014-09-29 2016-03-31 Dangvinh Phamdo Bokah blocks
US20170058926A1 (en) * 2014-03-18 2017-03-02 Masahiro Takubo Assemblable structure

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3246817A1 (de) * 1982-12-17 1984-06-20 Artur Dr.H.C. 7244 Waldachtal Fischer Prismatischer spielbaustein aus kunststoff

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1092591A (en) * 1913-01-06 1914-04-07 Charles Hamilton Pajeau Mechanical-construction blocks.
US1863995A (en) * 1930-06-30 1932-06-21 Ponstingl Frank Toy building brick
US1985992A (en) * 1933-07-14 1935-01-01 Milton E Hayman Building blocks
US2493285A (en) * 1948-09-25 1950-01-03 Granat Leo Interlocking ring ensemble
DE883574C (de) * 1950-10-17 1953-07-20 Wilhelm Bunge Spielbaustein mit auf einer Flaeche verlaufender Laengsnut und gegebenenfalls einer Feder auf der gegenueberliegenden Flaeche
US2662335A (en) * 1950-01-09 1953-12-15 Whitman Publishing Company Sectional toy figure
US3032919A (en) * 1960-02-22 1962-05-08 Amsler Max Building elements for toys, replicas and like articles
US3154281A (en) * 1962-02-20 1964-10-27 Frank Charles Holder for electronic components

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1092591A (en) * 1913-01-06 1914-04-07 Charles Hamilton Pajeau Mechanical-construction blocks.
US1863995A (en) * 1930-06-30 1932-06-21 Ponstingl Frank Toy building brick
US1985992A (en) * 1933-07-14 1935-01-01 Milton E Hayman Building blocks
US2493285A (en) * 1948-09-25 1950-01-03 Granat Leo Interlocking ring ensemble
US2662335A (en) * 1950-01-09 1953-12-15 Whitman Publishing Company Sectional toy figure
DE883574C (de) * 1950-10-17 1953-07-20 Wilhelm Bunge Spielbaustein mit auf einer Flaeche verlaufender Laengsnut und gegebenenfalls einer Feder auf der gegenueberliegenden Flaeche
US3032919A (en) * 1960-02-22 1962-05-08 Amsler Max Building elements for toys, replicas and like articles
US3154281A (en) * 1962-02-20 1964-10-27 Frank Charles Holder for electronic components

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3601738A (en) * 1967-11-27 1971-08-24 Int Standard Electric Corp Protection units and mounting tool
US3676969A (en) * 1970-04-03 1972-07-18 Dan B Moore Log type building unit
US4035947A (en) * 1975-08-21 1977-07-19 Burge David A Toy construction set having interconnectible components with interfitting formations
US4617001A (en) * 1981-06-02 1986-10-14 Parein Eric W Elements of a construction or assembly set, and accessories
US4789370A (en) * 1987-02-11 1988-12-06 Go Images, Inc. Apparatus for interlocking structural elements of toy disks
US5239803A (en) * 1991-11-07 1993-08-31 Shannon Stephen J Single-component-type structural system
US5918999A (en) * 1998-03-27 1999-07-06 Lamarca; Guy M. Geometric spacial frame assembly
US6250986B1 (en) * 1999-02-08 2001-06-26 Soren Christian Sorensen Building element for set of toy building blocks
US6616499B1 (en) 1999-02-08 2003-09-09 Soren Christian Sorensen Interconnection of toy building elements in a releasable secure engagement
US6824440B2 (en) * 2001-01-19 2004-11-30 Alexander Brener Element of erection set, and erection set provided therewith
US7648407B1 (en) 2005-07-14 2010-01-19 Soren Christian Sorensen Toy-building elements having sidewall grooves formed between outwardly extending flexible ridges
US20170058926A1 (en) * 2014-03-18 2017-03-02 Masahiro Takubo Assemblable structure
US20160089615A1 (en) * 2014-09-29 2016-03-31 Dangvinh Phamdo Bokah blocks
US9649573B2 (en) * 2014-09-29 2017-05-16 Dangvinh Phamdo Bokah blocks

Also Published As

Publication number Publication date
NO118425B (fr) 1969-12-22
NL6513348A (fr) 1966-05-16
BE671742A (fr) 1966-03-01
CH438122A (de) 1967-06-15
IL24566A (en) 1969-11-30
CS156403B2 (fr) 1974-07-24
FI43278B (fr) 1970-11-02
SE327937B (fr) 1970-08-31

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