Apparatus for perforating and removal of glued articles e.g. wallpapers has spiral projections which are arranged on periphery of lid to engage with threads of base after positioning of cutting tool in lid

摘要

The apparatus has base (30) having mounting recess (31), neck portion (32) and end portion (33). A perforator unit (50) has cutting tool (52) having rotary sleeve (521) with extension arm (524) which is rotatably connected to double blade axis (522) rotatably connected to cutting wheels (523). The spiral projections (516,517) arranged on periphery of lid (51) engage with threads (38,39) of base after positioning of cutting tool in lid. The guide lock (34) and auxiliary latch (35) are limited respectively in positioning recesses (514,515) formed on lid flange. The apparatus has base having mounting recess, neck portion and end portion. The mounting recess has bottom, mounting hole (312) and inner circumference (313) limited between bottom and mounting hole. A projecting guide lock and a projecting auxiliary latch are formed on bottom having spring portions (36,37) on periphery of the projecting guide lock and projecting auxiliary latch. The spring portions have opposite extension slots (361,371) and corresponding interrupt port (362,372) extending along the joint between the bottom and the inner circumference. The portion of the spring portions has discrete zones spring portions, and several threads on the inner circumference. A filler unit has blade holder connected to neck portion of the base to hold blade. A perforator unit has lid and cutting tool. The lid has a receiving space (511) and abutting flange (512) and central axis (513) centrally located in the receiving space. The positioning recess are formed on the flange. The spiral projections are arranged on the periphery of the lid. The cutting tool has rotary sleeve, double blade axis and cutting wheels. The rotary sleeve has extension arm which is rotatably connected to the double blade axis rotatably connected to cutting wheels. The central axis is rotatably mounted in the rotary sleeve. The cutting tool protrudes from the flange. The spiral projections engage with the threads of the base after the positioning of the cutting tool in the lid. The projecting guide lock and projecting auxiliary lock are limited respectively in positioning recesses.