Rotatable cam for use in a toy construction set
AssigneeCPG Products Corp.
InventorsCraig C. Selvage, Frank D. Ventura
Life of this patent
Estimating the term…
Abstract
The toy construction set includes a plurality of blocks and at least one base plate. Each of the blocks has one or more axially shiftable and rotatable coupling cams mounted therein which can be projected from the bottom of the block to effect vertical attachment with another block or with the base plate, using a suitable hand tool to do so. The preferred base plate contains a number of appropriately located coupling cams so that it can be attached either above or below a number of blocks.
Claims23
In a toy construction set, a plurality of interconnectible members, at least one of said members having a cylindrical bore therein, a rotatable coupling cam completely contained in said bore, said cam behind axially shiftable in first and second directions, means holding said cam captive within said bore, said holding means permitting an end portion of said cam to project in said first direction from said one member when said cam has been shifted sufficiently in said first direction, so that said end portion projects from said bore, said plurality of members including at least another member having an opening for receiving therein said projecting end portion when said cam has been shifted sufficiently in said first direction and having means associated with said opening capable of providing obstructive engagement with said end portion when said end portion is projecting from said one member after said cam has been shifted sufficiently in said first direction and is rotated into said obstructive engagement.
In a toy construction set, plurality of interconnectible blocks, certain of said blocks including an axially shiftable and rotatable coupling cam, said cam in each instance being shiftable from a fully retracted position within the block with which it is associated to a partially projected position, said certain blocks also having means engageable by the cam of an adjacent block when the cam of said adjacent block is in its said partially projected position.
In a toy construction set, a plurality of interconnectible blocks, first of said plurality of blocks including a coupling cam for attaching said first block to a second block of said plurality of blocks, and a third block of said plurality of blocks including means for selectively attaching said third block to said first block and said second block, said second block including a tubular bushing having inwardly extending lugs, said cam having flanges thereon engageable with said lugs.
In a toy construction set, first and second blocks wherein each block includes a tubular bushing having a cylindrical bore extending therethrough, a pair of diametrically located lugs extending toward each other at one end of said bore, a pair of diameterically located flanges extending toward each other within said bore and recessed with respect to the other end of said bore, a coupling cam shiftably contained in said bore, a first pair of diametrically located flanges extending outwardly in opposite directions from one end of said cam, a second pair of diametrically located flanges extending outwardly in opposite directions from the other end of said cam, said first and second oppositely extending flanges being spaced an axial distance less than the distance between said lugs and said recessed flanges and said first pair of flanges on said cam being obstructively engageable with said lugs when said cam is shifted in one direction and said second pair of flanges on said cam being obstructively engageable with said recessed flanges when shifted in an opposite direction so that said cam is held captive in said bore between said lugs and said recessed flanges, said lesser distance between said first and second oppositely extending flanges permitting said cam to be axially shifted within said bore so that said second oppositely extending flanges project axially from the first block so that said second oppositely extending flanges can be obstructively engaged with the lugs of said second block when said cam is rotated to thereby interconnect said first and second blocks.
For use in a toy construction set, a rotatable cam comprising a body portion having a slot extending from one end thereof toward the other end thereof, said body portion having a pair of oppositely directed flanges at said one end, each of said flanges having a cam surface on the side thereof facing toward said other end of the body portion, said body portion having a second pair of oppositely directed flange at its said other end, said second flanges being generally perpendicular to said first flanges.
Dependencies are inferred from the claim text.