Abstract:
A modular educational implement structure comprises a plurality of component units of the standardized size, design, shape, etc. the component units can be arranged or fitted together in a variety of ways so as to make the implement structure adaptable to various uses and functions.

Description:
BACKGROUND OF THE INVENTION 
     1. Field of the Invention 
     The present invention relates generally to an educational implement, and more particularly to a modular and versatile educational implement structure. 
     2. Description of Related Art 
     As shown in FIG. 1, two prior art educational implements are respectively made integrally and are limited in use and function. One of the two prior art educational implements has a triangular shape and a fixed framework. Other one of the two prior art educational implements has a semicircular shape and a fixed framework. These two prior art educational implements are very limited in versatility. In addition, both implements can be used to draw a line. Such a functional duplication is a reflection of the inherent deficiency of the prior art educational implements. In addition, the prior art educational implements are not cost-effective in terms of space occupation, packaging cost, shipping cost, production cost, and material cost. 
     BRIEF SUMMARY OF THE INVENTION 
     The primary objective of the present invention is to provide a modular educational implement structure with is also versatile, efficient, and economical. 
     In keeping with the principle of the present invention, the foregoing objective of the present invention is attained by the modular educational implement structure comprising units of the standardized size, design, shape, and the like. The units can be arranged or fitted together in a variety of ways, so as to make the educational implement adaptable to many uses and functions. 
     The features and the advantages of the present invention will be more readily understood upon a thoughtful deliberation of the following detailed description of the present invention with reference to the accompanying drawings. 
    
    
     BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWINGS 
     FIG. 1 shows a perspective view of two prior art educational implements. 
     FIG. 2 shows a schematic perspective view of the present invention. 
     FIGS. 3-7 are schematic views of the present invention adaptable to various uses. 
     FIG. 8 shows a sectional view of the present invention. 
     FIG. 9 shows another sectional view of the present invention. 
     FIGS. 10-12 are schematic views of the present invention in use. 
    
    
     DETAILED DESCRIPTION OF THE INVENTION 
     As shown in FIGS. 2-12, a modular educational implement structure embodied in the present invention is formed of the following units. 
     A retaining member set  19  is formed of a plurality of retaining straight plates  12 ,  14 ,  15 , and  16 , retaining arcuate plates  17  and  18 , angled plates  10 ,  11  and  13 . These plates are provided with a retaining hole  50 , a retaining structure  51  or  52 . 
     A plurality of tubular members  30  are provided in the interior with a position-confining projection  301 . The tubular members  30  have an appropriate length. 
     A plurality of connection members  31  are provided with a connection segment  312  cooperative with the tubular members  30 , and with a stop edge  311 . 
     A press member  32  is provided with a connection segment  321  by means of which the press member  32  is connected to one end of the tubular members  30  for pressing against a reference surface. 
     A plurality of holding members  33  are provided with a holding segment  331 , a connection structure  332 , and a pivoting hole  333 . The holding segment  331  is engageable with the retaining hole  50  of the retaining member set  19 . The holding segment  331  and the connection structure  332  are cooperative with the end portions of the tubular members  30 . The connection structure  332  cooperates with the position-confining projection  301  of the tubular members  30  to form an appropriate profile. Two holding members  33  can be pivoted together by making use of the pivoting hold  333  of the holding members  33 . 
     A grip body  34  is fitted over the tubular members  30  to facilitate the gripping of the tubular members  30 . 
     A staff plate  35  is provided with a plurality of connection holes  351  which are arranged equidistantly and are provided with a retaining groove  352 . The staff plate  35  is further provided with a retaining hold  50 . 
     A plurality of clamping members  53  are provided with a locating structure  531  having a retaining block  532 . The clamping members  53  are used in conjunction with the tubular member  30  or the staff plate  35 . 
     The component units of the present invention are detachably fitted together in various ways to form various educational implements. For example, the angled plates  10 ,  11  and  13  are arranged together with the retaining straight plates  12 ,  14 ,  15  and  16  in conjunction with the tubular members  30  and the holding members  33  such that the retaining segment  331  of the holding member  33  is retained in the retaining hole  50  of the retaining member set  19 , and that the tubular member  30  is disposed between the connection structures  332  of two holding members  33 , thereby resulting in formation of various educational implements, such as triangular implements and rulers, as shown in FIGS. 3,  5 ,  10 , and  11 . The angled plates  10 ,  11  and  13  are replaced by the arcuate plates  17  and  18  to form an angle gauge, as shown in FIG. 4. A plurality, of tubular members  30  are connected end to end in conjunction with the connection members  31  to form a pointer, as shown in FIG. 12. A pair of compasses is formed by two holding members  33  in conjunction with a plurality of tubular members  30  and connection members  31 , a press member  32 , and a clamping member  53 , as shown in FIG. 7. A staff board is formed, as shown in FIG. 6, by the staff plate  35  and a plurality of clamping members  53  which are held in the connection holes  351  of the staff plate  35  by the locating structures  531  of the clamping members  53  such that the retaining blocks  532  are located in the retaining grooves  352  of the connection holes  351  of the staff plate  35 . In addition a tubular member  30  is added in conjunction with two holding members  33 . The tubular member  30  is provided with the grip body  34  fitted thereover. 
     The present invention described above is to be regarded in all respects as being illustrative and nonrestrictive. Accordingly, the present invention may be embodied in other specific forms without deviating from the spirit thereof. The present invention is therefore to be limited only by the scopes of the following claims.