Toy construction set

Abstract

A toy construction set includes: a first building element including a stud that extends from a surface, the stud including a cavity and an outer wall; and a second building element including a recess, the recess configured to releasably connect with the stud of the first building element. When the first building element and the second building element are connected, the stud is frictionally engaged at the cavity and at the outer wall.

What is claimed is: 
     
         1 . A toy construction set comprising:
 a first building element comprising a stud that extends from a surface, the stud comprising a cavity and an outer wall; and   a second building element comprising a recess, the recess configured to releasably connect with the stud of the first building element, wherein, when the first building element and the second building element are connected, the stud is frictionally engaged at the cavity and at the outer wall.   
     
     
         2 . The toy construction set of  claim 1 , wherein the first building element and the second building element connect along an axis of connection, and when the first building element and the second building element are connected, the first building element and the second building element are rotatable relative to each other about the axis of connection. 
     
     
         3 . The toy construction set of  claim 2 , wherein the first building element and the second building element slidably connect along the axis of connection. 
     
     
         4 . The toy construction set of  claim 1 , wherein the recess comprises a protrusion. 
     
     
         5 . The toy construction set of  claim 4 , wherein the protrusion comprises a stud that protrudes into the recess. 
     
     
         6 . The toy construction set of  claim 4 , wherein the protrusion is configured to be received in the cavity of the stud. 
     
     
         7 . The toy construction set of  claim 6 , wherein the stud is frictionally engaged at the cavity by a frictional engagement between the protrusion and the cavity of the stud. 
     
     
         8 . The toy construction set of  claim 1 , wherein the first building element comprises a pelvis, and the second building element comprises a torso, and the toy construction set further comprises at least one other building element that, with the first building element and the second building element, forms a toy figure. 
     
     
         9 . The toy construction set of  claim 1 , further comprising a plurality of additional building elements that are interconnectable with each other, and wherein, one or more of the first building element and the second building element have the same height or width as at least one of the additional building elements such that the one or more of the first building element and the second building element are configured to be interchanged with at least one of the additional building elements. 
     
     
         10 . The toy construction set of  claim 1 , further comprising a connection building element, at least part of the connection building element configured to connect between the first building element and the second building element, the connection building element comprising a first coupling element configured to frictionally engage the stud of the first building element. 
     
     
         11 . The toy construction set of  claim 10 , wherein the second building element comprises a stud, and the connection building element further comprises a second coupling element configured to engage the stud of the second building element with a snap connection. 
     
     
         12 . The toy construction set of  claim 11 , wherein the stud of the first building element is received in the first coupling element of the connection building element in a first direction, and the stud of the second building element is received in the second coupling element of the connection building element in a second direction, the first direction being different from the second direction. 
     
     
         13 . The toy construction set of  claim 12 , wherein the first direction is perpendicular to the second direction. 
     
     
         14 . The toy construction set of  claim 10 , wherein the first coupling element of the connection building element is configured to frictionally engage the stud of the first building element at one or more facets. 
     
     
         15 . A toy connection building element comprising:
 a first side comprising a first surface that defines a first coupling element configured for snap engagement with a stud of a separate toy building element;   a second side comprising a second surface, the second surface comprising coupling elements arranged in a grid; and   a third side comprising a third surface that defines a second coupling element configured for frictional engagement with a stud of a separate toy building element, wherein   the first and third surfaces are in parallel planes,   the first and second surfaces are in perpendicular planes,   the first coupling element is configured to receive a stud of a separate toy building element in a first direction,   the second coupling element is configured to receive a stud of a separate toy building element in a second direction, and   the first and second directions are perpendicular to each other.   
     
     
         16 . The toy connection building element of  claim 15 , wherein
 the first coupling element is a first coupling feature, the coupling feature being a first opening, and   the second coupling element is a second coupling feature, the coupling feature being a second opening, the second opening passing through the third side.   
     
     
         17 . The toy connection building element of  claim 16 , wherein one of the first coupling feature and the second coupling feature comprise one or more facets on an inner wall. 
     
     
         18 . The toy connection building element of  claim 16 , wherein the second coupling feature comprises one or more facets on an inner wall. 
     
     
         19 . The toy connection building element of  claim 18 , wherein the first side comprises a plurality of arms that extend from the second surface, and the plurality of arms at least partially defines the first opening. 
     
     
         20 . A toy construction set comprising:
 a first building element comprising a stud, the stud comprising an outer surface and a cavity formed in the stud; and   a second building element comprising a recess and a post in the recess, wherein   the first building element and the second building element are configured to removably interconnect with a frictional engagement between the post of the second building element and the cavity of the first building element and a frictional engagement between the outer surface of the stud of the first building element and the recess of the second building element.   
     
     
         21 . The toy construction set of  claim 20 , wherein the first building element and second building element are rotatable relative to each other when connected. 
     
     
         22 . The toy construction set of  claim 20 , wherein the second building element comprises a torso, and the first building element comprises a pelvis. 
     
     
         23 . The toy construction set of  claim 20 , wherein the recess of second building element has a circular cross-section, and the first building element, the post, and the stud have a circular cross-section. 
     
     
         24 . A building element configured to releasably connect to a separate building element, the building element comprising a stud comprising an outer wall and a cavity, wherein, when connected to the separate building element, the stud engages with two distinct surfaces of the separate building element, the outer wall of the stud engaging with a first of the two distinct surfaces of the separate building element and the cavity of the stud engaging with the second of the two distinct surfaces of the separate building element, to releasably connect the building element to the separate building element at two or more fictional engagement points between distinct surfaces.