A toy building block (1) for stacking is provided on top (4) with one or more studs (3) and in the bottom (7) with recesses (6). The studs (4) show a toothwheel-like cross-section with rounded teeth crests (12) and rounded grooves (10) between the teeth (12) as well. The recesses (6) are provided ea
A toy building block (1) for stacking is provided on top (4) with one or more studs (3) and in the bottom (7) with recesses (6). The studs (4) show a toothwheel-like cross-section with rounded teeth crests (12) and rounded grooves (10) between the teeth (12) as well. The recesses (6) are provided each with a number of vertically extending lands (14) matching in shape the grooves (10). The studs easily slide in and out of the recesses (6), yet a rotational arretation of low play is obtained. Preferably, the building blocks are produced by a blowing process and may be provided with screws (21) for a safe interconnection. External slots (46) may allow the combination with panels (47) bearing images, additional functional elements etc.
대표청구항▼
1. A toy building block capable of being stacked, comprising: a top surface of the block having thereon at least one stud with a plurality of circumferentially arranged, substantially equally spaced teeth with rounded crests and interspersed rounded grooves, the stud having a height extending above
1. A toy building block capable of being stacked, comprising: a top surface of the block having thereon at least one stud with a plurality of circumferentially arranged, substantially equally spaced teeth with rounded crests and interspersed rounded grooves, the stud having a height extending above the top surface of the block by at least about 30% of the height of the block; anda bottom surface of the block having at least one recess with sidewalls, at least one sidewall of the recess having a substantially vertically extending land shaped complementary to and extending into a respective one of the rounded grooves of the stud, wherein the stud is configured and operable to be insertable in the recesses of other like toy building blocks, and the stud on one block is guided into a recess of another of the blocks by the lands in the recess of the other block whereinthe recesses are shaped such that one of the studs inserted in one of the recesses is guided by at least three zones of contact, and at least one of the zones is a land in the recess of another of the blocks engageable in one of the rounded grooves in the stud. 2. A toy building block according to claim 1, wherein the recess further comprises at least three of the vertically extending lands each shaped complementary to the rounded grooves of the stud. 3. A toy building block according to claim 2, wherein the lands constitute the majority of contact zones for guiding a stud inserted into the recess. 4. A toy building block according to claim 1, wherein the studs have a rotational symmetry of at least 4-fold. 5. A toy building block according to claim 1, wherein the rotational symmetry of the studs is 6-fold, 8-fold or 12-fold. 6. A toy building block according to claim 1, wherein the block consists of essentially cuboid units, and each of the cuboid units is provided with one of the studs and one of the recesses. 7. A toy building block according to claim 1, further comprising a pass-through hole provided centrally in at least one stud or one recess, the pass-through hole extending from top to bottom of the building block. 8. A toy building block according to claim 7, wherein the pass-through hole is provided in at least one stud, and is further provided with an enlargement within the stud configured and operative for receiving a head of a screw. 9. A toy building block according to claim 1, wherein the block comprises a hollow portion and is manufactured by blowing of a material comprising polymeric mass as an essential constituent. 10. A toy building block according to claim 1, wherein the block has a lateral outer face and is provided with at least one slot penetrating the lateral outer face from one side of the lateral outer face to an opposite side, configured and operative for holding edges of construction devices. 11. A toy building block according to claim 1, wherein the block comprises a bivalent building block having at least one of the recesses on the top surface and the bottom surface, and the at least one stud comprises a piece having the plurality of circumferentially arranged, substantially equally spaced teeth with rounded crests and interspersed rounded grooves of the stud and about double a length of the recess, and the piece is configured to be inserted in the at least one recess of the bivalent building block. 12. A toy building block set comprising: at least one toy building block according to claim 7; andat least one screw having a head, a first thread on a body terminal section of the screw, and a second inner thread in the head of the screw, the second thread being matched with the first thread so that the screw may be screwed in the head of another like screw. 13. A toy building block set comprising: at least one toy building block according to claim 7; andat least one screw configured and operative to be positioned into the pass-through hole of the toy building block, and a recess in the head of the screw, the recess having a cross-section comprised of regularly arranged, inwardly directed crests separated by generally circle shaped grooves, configured and operative for a complementarily shaped end of a tool to be inserted and rotationally fixed in the head. 14. A toy building block set according to claim 13, wherein the cross-section of the recess in the head has at least four of the crests. 15. A toy building block set according to claim 12, further comprising a screwdriver tool for the screw, the screwdriver tool having a rod with its cross-section being substantially complementarily-shaped to the recess in the screw. 16. A toy building block according to claim 7, wherein the pass-through hole is provided with a third thread configured and operative for a screw to be screwed through the toy building block. 17. A toy building block according to claim 16, wherein the at least one pass-through hole is provided in at least one stud, and is further provided with an enlargement within the studs configured and operative to receive a head of a screw. 18. A toy building block set according to claim 12, wherein the screw has a body with a middle part which is provided with a fourth thread that is matched with a third thread provided in the pass through hole, and the first thread has a smaller diameter than the fourth thread. 19. A toy building block set according to claim 18, wherein the screw head is provided with a recess, the recess having a cross-section comprised of regularly arranged, inwardly directed crests separated by generally circle shaped grooves, configured and operative for a complementarily shaped end of a tool to be inserted and rotationally fixed in the head.
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이 특허에 인용된 특허 (12)
Shakespeare Terry A. (Lake View Terrace CA) Molina David A. (Rancho Cucamonga CA) Shakespeare Gwendolyn S. (Lake View Terrace CA), Articles made from an edible, water soluble composition of low density for use in toys, games and arts and craft project.
Deahr Christine M. (W6415 Kroghville Rd. Waterloo WI 53594), Child-constructable toys that are assembled using a system of color-coordinated components and tools.
Cyrus Peter ; Cryan Sean ; Proctor Steve ; Franko Rich ; Brady Chris ; Wicklander David ; Franz Gary ; Burns William ; Gibson Matt ; Jaynes Rebecca, Modular base units for a toy building set.
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