Patent ID: 6314229
Filing Date: 2001-11-06
Classification: G02B,H02G

Abstract:
An end seal structure for a cable closure including a cylindrical casing for enclosing a cable connection section and a pair of end wall portions integrally provided on opposite ends of said cylindrical casing, each of said pair of end wall portions formed with a fit groove positioned at a central portion thereof, comprising:a pair of end plates detachably fitted in said fit grooves, each of said pair of end plates being formed with at least one cable insertion passage through which a cable is inserted into said cylindrical casing;each of said pair of end plates including a split cable spacer constructed in a manner to be splittable into two halves having abutting joint faces and arranged so as to be pressedly contacted with an outer periphery of said at least one cable;said split cable spacer being made of a vulcanized rubber composition which has at least one of hardness of 0 to 10 as measured according to JIS S 6050 and penetration of 40 to 90 (10-.sup.1 mm) as measured according to JIS K 2560, and which is of 500 to 2000% in elongation and 10 to 60 kgf/cm.sup.2 in tensile strength as measured according to JIS K 6301;said split cable spacer being integrally provided with a plurality of seal ribs arranged along said cable insertion passage in a manner to be opposite to each other and spaced from each other at predetermined intervals;said plurality of seal ribs each being operatively associated with an outer periphery of said at least one cable when said at least one cable is inserted through said cable insertion passage;each of said pair of end plates further including a split end seal base provided with a hinge which permits said split end seal base to be pivotally split into two halves;said split cable spacer being fittedly held in said split end seal base, so that said halves of said split cable spacer may be detachably joined to each other through said abutting joint faces thereof, said abutting joint faces of said halves of said split cable spacer being disposed parallel to each other in a direction in which said cable is inserted through said split cable spacer, and said plurality of seal ribs is formed on said abutting joint faces of said halves of said split cable spacer so as to project from said abutting joint faces.