Rotary drum type litter separating apparatus

Abstract

In a rotary drum type litter separating apparatus including a cylindrical unit supported rotatably and having a peripheral surface formed in a mesh form as a part of the cylindrical unit, the cylindrical unit includes a bottomed part which closes one end of the cylindrical unit and a loaning / unloading port which opens the other end of the cylindrical unit, and a mesh part which is a detachable separate member is further attached to an outer periphery of the cylindrical unit. The litter separating apparatus is capable of separating various kinds of litter of different sizes from sand, thereby reliably collecting the litter. Moreover, the mesh part can be replaced easily. Thus, the workability is improved, and the man-hour is reduced. Such litter separating apparatus is capable of efficiently collecting various kinds and different sizes of litter.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]The present invention claims priority under 35 USC 119 based on Japanese Patent Application No. 2013-110404, filed on May 24, 2013. The entire subject matter of this priority document, including specification claims and drawings thereof, is incorporated by reference herein.BACKGROUND OF THE INVENTION[0002]1. Field of the Invention[0003]The present invention relates to a rotary drum type litter separating apparatus for collecting litter from a beach. More particularly, present invention relation to a litter separating apparatus having a plurality mesh parts of different mesh sizes for separating litter of various kinds and different sizes from sand.[0004]2. Description of the Background Art[0005]There is a known beach cleaner, which is used as an apparatus for collecting litter scattered on the sand ground of a sea beach or the like. An example of such beach cleaner is disclosed in the Japanese Patent Application Publication No. 2010-17451...

AI Technical Summary

Benefits of technology

[0012]According to the first aspect of the present invention, the mesh part, which is a detachable separate member, is attached to the outer periphery of the cylindrical unit having a peripheral surface formed in a mesh form. Thus, by preparing in advance a plurality of mesh parts of different mesh sizes and attaching a mesh part suitable for the sizes of litter to be separated, it is possible to separate the litter of various kinds and different sizes from sand, thereby to reliably collect the litter. Moreover, the mesh part can be replaced easily. Thus, the workability is improved, and the man-hour is reduced.

[0013]According to the second aspect of the present invention, the mesh part is attached in such a way as to wrap the cylindrical unit, and the opposite end sides of the mesh part are connected by using the hooks provided on the opposite end sides of the mesh part. Thus, attachment and detachment of the mesh part is easy, and the man-hour for such operations is reduced.

[0014]According to the third aspect of the present invention, the mesh size of the mesh part is finer than the mesh size of the peripheral surface of the cylindrical unit. Thus, by changing the mesh size according to the sizes of litter to be separated, smaller sized pieces of litter can be collected.

[0015]According to the fourth aspect of the present invention, the rotational drive mechanism is arranged on the peripheral surface of the cylindrical unit substantially around the central portion in the height direction thereof, and the mesh part is detachably attached to the portion of the outer periphery of the cylindrical unit excluding the rotational drive mechanism. Thus, the width of the mesh part is small, and a storage space therefor can be slim.

Problems solved by technology

Thus, some types of litter may possibly pass through the mesh, which makes efficient litter separation impossible.

Moreover, the drum type sieving member needs to be replaced with a different sieving member from one situation to another depending on the state of litter scattered on a sandy beach or the like, which makes litter collection time-consuming.

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