Patent ID: 8505728

Claim:
A portable tool storing device comprising: a first modular shelf having first top and bottom ends opposite to each other in an upright direction, and first outward and inward surfaces opposite to each other in a transverse direction relative to the upright direction, said first modular shelf including a first middle wall which has a first crosspiece disposed at said first top end, a plurality of first flank segments which are disposed to flank said first middle wall in a longitudinal direction transverse to the upright and transverse directions, and which are spaced apart from each other in the upright direction, each of said first flank segments having a first indented region which is offset from said first inward surface in the transverse direction, and a male joint member disposed on said first inward surface; a second modular shelf having second top and bottom ends opposite to each other in the upright direction, and second outward and inward surfaces opposite to each other in the transverse direction, said second modular shelf including a second middle wall which has a second crosspiece disposed at said second top end, a plurality of second flank segments which are disposed to flank said second middle wall in the longitudinal direction, and which are spaced apart from each other in the upright direction, each of said second flank segments having a second indented region which is offset from said second inward surface in the transverse direction, and a female joint member disposed on said second inward surface, and configured such that said first and second middle walls are brought into fitting engagement with each other in the upright direction to be placed in back-to-back engagement so as to permit said first and second crosspieces to be juxtaposed to and combined with each other so as to form a handle; and a plurality of modular containers, each including a container body and a clip lug extending downwardly from an upper edge of said container body wherein the clip lug of each modular container is clipped on a corresponding one of said first and second indented regions so that the modular containers are stored in an upright position with each clip lug extending downwardly parallel to the height of the indented regions.