Three-Dimensional Labyrinth

The present invention relates to a mental game and, in particular, to a three-dimensional labyrinth which is a transparent or translucent case with a plurality of compartments formed therein and a plurality of passages formed randomly through the walls of the compartments so that an attendant has to observe and think in order to find a route to move a ball, which is placed in the case in advance, out of the case.

The labyrinth has been created and known for such a long time that people do not even know exactly when the labyrinth was created. The labyrinth was used to protect and hide something or to stop and block someone. But nowadays, it has become a puzzle to be solved by an attendant in the shortest time.

Conventionally, the labyrinth is a two-dimensional game, that is it allows the attendant to move in a plane, back and forth, to the right and left, but not upwards or downwards. A labyrinth usually provides many routes branched from each other for the attendant's choice, but only one leads to the destination, the other to dead ends.

Recently, a three-dimensional labyrinth has been created. Such a labyrinth is a transparent or translucent case of which the interior is compartmented. The compartments are randomly provided with passages which may communicate with either the right compartment, the left compartment, the front compartment, the back compartment, the upper compartment or the lower compartment. The puzzle is to move a ball placed inside the case in advance through the passages and finally out of the case. Since the passage are randomly provided through the compartments, the septa which construct the compartments are perforated randomly and differently.

Accordingly, it is the primary object of the present invention to provide a three-dimensional labyrinth of which the passages are equally-spaced on the speta so that the septa are identical in shape and size. This, certainly, reduces manufacturing cost.

It is a related object of the present invention to provide a three-dimensional labyrinth of which the passages can be blocked arbitrarily to change the route pattern.

Other advantages and objects can be observed by those having ordinary skill in the related art when the following description is read in conjunction with the attached drawings, in which:

FIG. 1 is a perspective view of a three-dimensional labyrinth in accordance with the present invention;

FIG. 2 is a fragmentary view, in which the cover of the case and the compartments are separated from the case of the three-dimensional labyrinth shown in FIG. 1;

FIG. 3 is a view showing the parts which construct the compartments and the case; and

FIG. 4 is a cross-sectional view showing the engagement of the parts which constitute the case.

Referring to FIG. 1, a three-dimensional labyrinth 1 in accordance with the present invention is basically a compartmented, transparent or translucent case.

Referring to FIG. 2, the compartmenting means which is disposed inside the case 2 is generally designated by the reference numeral 3. The compartmenting means 3 is constituted by a plurality of levels of which any two adjacent levels are separated by a transparent or transluent level plate 31. Formed through each level plate 31 are a plurality of identical holes 311 which are equally spaced and evenly distributed over the whole plate. The compartments of each level is constructed by a plurality of latitudinal septa 32 and longitudinal septa 33 intersecting and interlocking each other. Both latitudinal septa 32 and longitudinal septa 33 are made of transparent or translucent material. Each latitudinal septum 32, being a long strip, has a plurality of equally-spaced, identical holes 321 and a plurality of also equally-spaced, elongated notches 322 alternately formed therealong. The notches 322 are perpendicularly formed on one edge of the latitudinal septum 32 with the depth thereof substantially equal to or slightly greater than half of the width of the latitudinal septum 32. The longitudinal septum 33 is also a long strip with a plurality of equally-spaced, identical holes 331 and a plurality of also equally-spaced, elongated notches 332 alternately formed therealong. The notches 332 are perpendicularly formed on one edge of the longitudinal septum 33 with the depth thereof substantially equal to or slightly greater than half of the width of the longitudinal spetum 33. The widthes of both the latitudinal speta 32 and longitudinal septa 33 are substantially the same. The longitudinal speta 33 intersect and interlock the latitudinal septa 32 with the notches 332 thereof engaging with the notches 322 of the latitudinal septa 32 so as to construct the compartments 30 of a level with each compartment thereof corresponding to a hole 311 formed in the level plate 31.

The case 2 is constituted by a bottom casing 21 which is like a box without the cover, a top casing 23 which is like a box without the bottom, and a plurality of intermediate casings 22 which are like boxes without both the cover and the bottom. The internal heights of both the top casing 23 and the bottom casing 21 are substantially the same as each other and the same as the width of either the latitudinal septa 32 or the longitudinal septa 33. The internal height of each intermediate casing 22 is substantially the same as the height of each level including both the septa 32 and 33 and the level plate 31. This ensures that when the compartment means 3 is placed inside the case 2, it can precisely match the interior of the case 2.

The intermediate casings 22 are stacked on and secured to the bottom casing 21 with an engaging means which is general designated by the reference numeral 5. The top casing 23 is secured to the top of the stack of the intermediate casings 22 with the same engaging means 5. Referring to FIG. 4, the engaging means comprises an outward, peripheral projection 51 formed on the uppermost portion of the bottom casing 21 and each of the intermediate casing 22, and an inward, peripheral slot 52 formed on the lowermost portion of the top casing 23 and each of the intermediate casings 22. With th projection 51 engaging the slot 52, a casing is secured to another casing. The thickness of the portion of the side walls where the projection 51 and the slot 52 are formed may be reduced to half of the original thickness so that when a casing is secured to another, the thickness of the overlapped portion of the side walls can be the same as the other portion.

The three-dimensional labyrinth 1 further comprises a plurality of dumbell-like blockades 6 and a ball 7. The diameter of the ball 7 is substantially the same as or smaller than that of the holes formed in the level plate 31 or the septa 32 or 33 so that the ball 7 can pass through each hole 311, 321 or 331. The dumbell-like blockade 6 is made of soft and resilient material so that it can be forced to engage with any hole formed in either the level plate 31 or the septa 32 or 33, blocking the hole.

To play the three-dimensional labyrinth 1, a plurality of passages 311, 321 or 331 are randomly blocked and the ball 7 is arbitrarily placed inside the case 1. The attendant must figure out a route to move the ball 7 out of the case 1 via a hole 230 formed in a corner of the top casing 23.

It is to be understood that the embodiment of the present invention as shown and described is to be regarded as illustrative only and that the invention is susceptible to variations, modifications and changes within the scope of the appended claims.