# US 4,348,830 A · Body having through holes and a method for manufacturing said body > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 4,348,830 A - Document ID: US4348830A - Status: Granted - Kind: A - Application number: 05/948,042 - Filed: 1978-10-02 - Granted: 1982-09-14 - Earliest claimed: 1977-10-17 - Assignees: Intermatch S.A. - Inventors: Carl E. Hagberg - Web page: https://patentgrep.com/patent/US4348830A ## CPC - B29C 65/7802: {Positioning the parts to be joined, e.g. aligning, indexing or centring} - A63H 33/04: Building blocks, strips, or similar building parts - B29C 65/00: Joining {or sealing} of preformed parts {, e.g. welding of plastics materials}; Apparatus therefor {(general aspects of processes or apparatus for joining preformed parts B29C66/00; using porous material formed by internal pressure generated therein for joining preformed parts B29C44/1228, B29C44/326)} - B29C 65/02: by heating, with or without pressure - B29C 66/1312: {Single flange to flange joints, the parts to be joined being rigid (the parts to be joined being flexible B29C66/133)} - B29C 66/54: {Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles} - B29C 65/04: Dielectric heating, e.g. high-frequency welding {, i.e. radio frequency welding of plastic materials having dielectric properties, e.g. PVC} - B29C 65/08: using ultrasonic vibrations {(non-plastics element to plastics elements B29C65/645)} - B29C 66/71: {characterised by the composition of the plastics material of the parts to be joined (welding bar compositions B29C65/125)} - B29L 2031/5218: {Dolls, puppets} - B29L 2031/54: Balls - B29L 2031/737: {Articles provided with holes, e.g. grids, sieves (nets B29L2028/00)} - B29L 2031/7374: {Slotted} - F16B 2200/10: Details of socket shapes - Y10T 403/4966: Deformation occurs simultaneously with assembly - B29C: SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING (making preforms B29B11/00; making laminated products by combining previously unconnected layers which become one product whose layers will remain together B32B37/00 - B32B41/00) - A63H: TOYS, e.g. TOPS, DOLLS, HOOPS OR BUILDING BLOCKS - B29L: INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES - F16B: DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING (couplings for transmitting rotation F16D) - Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION ## Abstract This invention discloses improvements to the connecting blocks for a kit for assembling toy-like configurations from blocks and solid sticks. The blocks are made in at least two pieces which have contacting surfaces. The one of the contacting surfaces is substantially smooth and the other has grooves therein. When assembled the grooves and adjacent surfaces of the two pieces form holes for the sticks to be inserted into. ## Claims ### Claim 1 A kit for building toy-like configurations having at least one selectable geometrical shape, said kit comprising: (a) a plurality of blocks having exterior surfaces, each of said exterior surfaces having at least an extreme outer surface portion, a central inner region circumscribed by said extreme outer surface portion; at least one aperture on the extreme outer exterior surface of each of said blocks, said at least one aperture defining a hole, said hole having a substantially central longitudinal axis extending from substantially adjacent said outer surface generally toward said central inner region, said hole having a progressive variation in cross-sectional area along said longitudinal axis, the variation resulting in the cross-sectional area being greater adjacent said outer surface and smaller towards said central region; and (b) plurality of disposable elongated elements being formed of substantially a deformable material and having ends which have a cross section adapted to be insertable into the holes in said blocks at least for interconnecting a selectable portion of said blocks one with the other, said elongated elements having ends with sectional profile dissimilar as compared with the sectional profile of a said hole such that a selectable end of each of said elongated elements in assembly is compressibly grippable by material deformation in and by its corresponding hole at one of at least several locations along said portion of decreasing cross-sectional area of the hole, said blocks each having a first part and a second part; said first part having a first contacting surface for making contact with said second part; said second part having a second contacting surface for making contact with said first contacting surface; said first contacting surface being substantially smooth; said second contacting surface having at least one groove therein, said at least one hole being formed in assembly by said groove of said second surface and a portion of said first surface adjacent said at least one groove. ### Claim 2 (depends on 1) The kit for building toy-like configurations according to claim 1 wherein said at least one groove has substantially planar straight side walls in the direction of said longitudinal axis. ### Claim 3 (depends on 2) The kit for building toy-like configurations according to claim 2 wherein the configuration of said at least one groove comprises a circular surface portion and a flat surface portion. ### Claim 4 (depends on 3) The kit for building toy-like configuration according to claim 3 wherein the circular portion of said groove comprises a segment of a circle, said segment having a predetermined central angle. ### Claim 5 (depends on 4) The kit for building toy-like configurations according to claim 4 wherein said predetermined central angle is less than 180.degree.. ### Claim 6 (depends on 4) The kit for building toy-like configurations according to claim 4 wherein said predetermined angle is greater than 180.degree.. ### Claim 7 (depends on 1) The kit for building toy-like configurations according to claim 1 including a plurality of grooves intersecting at said central inner region of said block and intersecting one another at substantially equal angles, said plurality of grooves forming in assembly a plurality of holes. ### Claim 8 (depends on 2) The kit for building toy-like configurations according to claim 2 including a plurality of grooves intersecting at said central inner region of said block and intersecting one another at substantially equal angles, said plurality of grooves forming in assembly a plurality of holes. ### Claim 9 (depends on 3) The kit for building toy-like configurations according to claim 3 including a plurality of grooves intersecting at said central inner region of said block and intersecting one another at substantially equal angles, said plurality of grooves forming in assembly a plurality of holes. ### Claim 10 (depends on 4) The kit for building toy-like configurations according to claim 4 including a plurality of grooves intersecting at said central inner region of said block and intersecting one another at substantially equal angles, said plurality of grooves forming in assembly a plurality of holes. ### Claim 11 (depends on 7) The kit for building toy-like configurations according to claim 7 wherein on assembly at least some assembled blocks each form a substantially spherical ball wherein said grooves are spaced substantially radially and uniformly along said second contacting surface of the second part of each spherical ball. ### Claim 12 (depends on 11) The kit for building toy-like configurations according to claim 11 including at least one additional through-hole extending in assembly through the spherical ball, for facilitating assembly said first and second parts. ### Claim 13 A kit for recreational purposes for the building of at least user-designable objects comprising toy-like configurations having at least one selectable geometrical shape, said kit comprising: (a) a plurality of blocks having exterior surfaces, each of said exterior surfaces having at least an extreme outer surface portion, a central inner region circumscribed by said extreme outer surface portion; at least one aperture on the extreme outer exterior surface of each of said blocks, said at least one aperture defining a hole, said hole having a substantially central longitudinal axis extending from substantially central longitudinal axis extending from substantially adjacent said outer surface generally toward said central inner region, said hole generally having a cross-sectional area which is greater at said outer surface relative to the hole cross-sectional area at said central inner region, said cross-sectional area progressively decreasing over a length of the hole; and; (b) a plurality of elongated elements being formed of substantially a deformable material and having ends which have a cross-section adapted to be insertable into the holes in said blocks at least for interconnecting a selectable portion of said blocks one with the other, said hole having such a profile with respect to said cross-section of the elongated elements that a selectable end of each of said elongated elements in assembly is compressibly grippable by deformation in and by its corresponding hole at one of at least several locations along said portion of decreasing cross-sectional area of the hole, each of at least some said plurality of blocks comprising a first part and a substantially similarly shaped but nonidentical second part assembled to form each of at least some of the blocks; said first part having a first contacting surface for making contact with said second part; said second part having a second contacting surface for making contact with said first contacting surface; said first contacting surface being substantially smooth; said second contacting surface having at least one groove therein, said at least one hole being formed in assembly by said groove of said second surface and a portion of said first surface adjacent said at least one groove, said first and second parts further having a through hole in each, which through holes facilitate assembly of said first and second parts. ### Claim 14 (depends on 13) The kit for recreational purposes according to claim 13 wherein said at least one groove has substantially straight side walls generally in the direction of said longitudinal axis of said one groove. ### Claim 15 (depends on 14) The kit for recreational purposes according to claim 14 wherein the configuration of said at least one groove comprises a circular surface portion and a flat surface portion. ### Claim 16 (depends on 15) The kit for recreational purposes according to claim 15 wherein the circular portion of said groove is a segment of a circle, said segment having a predetermined central angle. ### Claim 17 (depends on 16) The kit for recreational purposes according to claim 16 wherein said predetermined central angle is less than 180.degree.. ### Claim 18 (depends on 16) The kit for recreational purposes according to claim 16 wherein said predetermined central angle is greater than 180.degree.. ### Claim 19 (depends on 13) The kit for recreational purposes according to claim 13 including a plurality of grooves intersecting at said central inner region of each said block and intersecting one another at substantially equal angles. ### Claim 20 (depends on 14) The kit for recreational purposes according to claim 14 including a plurality of grooves intersecting at said central inner region of each said block and intersecting one another at substantially equal angles. ### Claim 21 (depends on 15) The kit for recreational purposes according to claim 15 including a plurality of grooves intersecting at said central inner region of each said block and intersecting one another at substantially equal angles. ### Claim 22 (depends on 16) The kit for recreational purposes according to claim 16 including a plurality of grooves intersecting at said central inner region of each said block and intersecting one another at substantially equal angles. ### Claim 23 (depends on 19) The kit for recreational purposes according to claim 19 wherein on assembly, at least some assembled blocks each form a substantially spherical ball wherein said grooves are spaced uniformly radially along said second contacting surface of the second part of each spherical ball. ### Claim 24 (depends on 23) The kit for recreational purposes according to claim 23 including at least one additional through-hole extending in assembly through the spherical ball. ### Claim 25 A connecting body for connecting deformable elongated elements, for use in toy kits, said body comprising at least two parts which are substantially similar in shape but are nonidentical, said two parts being assembled by permanently joining them, a first of said parts having a first surface for making contact with a second of said parts, a second of said parts having a second surface for making contact on assembly with said first surface of said first part, said second surface having a portion with at least one groove therein for accepting, upon assembly of the kit, one end of a said deformable elongated element, the groove being wider at an outer periphery of the second surface and narrowing towards a center region of the second surface, a portion of said first surface upon assembly adjacent said one groove being substantially complementary with said one groove to form a hole which is progressively tapering over its length for accepting, upon assembly of the kit, an end of an elongated element by compressible deformation, said hole having such a tapering cross-sectional profile with respect to the cross section of the elongated elements that a selectable end of each of said elongated deformable elements in assembly is compressively grippable at one of at least several locations along said tapering hole.