PROBLEM TO BE SOLVED: To provide a dust collector for grinding work capable of easily recovering usable materials such as recyclable metals produced when executing the grinding work in dental technical working, chasing, jewelry working, handicraft and the like and capable of greatly being reduced in volume when not used.SOLUTION: The upper face part 2a of an opening/closing lid 2 of a recovery box 1 is defined as a working face the upper part of the upper face part 2a is defined as a working space S a shielding body 3 formed by opening the both sides and the rear part of the working space S is provided on the opening/closing lid 2 at least the upper face part 3a of the shielding body 3 is configured to have transparency one end of a connecting tube 5 is connected to a suction hole 4 provided in the front face part 3b of the shielding body 3 the other end of the connecting tube 5 is connected to a suction hole 6 provided in one side face of the recovery box 1, and one end of a suction tube 8 of a suction device is connected to a suction hole 7 provided in the other side face of the recovery box 1.COPYRIGHT: (C)2009,JPO&INPIT【課題】歯科技工、彫金、宝飾品加工、手工芸などにおいて研削作業を行った際に生ずる再生可能な金属などの有用物を簡単に回収することができ、しかも不使用時に非常に嵩を低くしておくことができる研削作業用集塵器具を提供する。【解決手段】回収ボックス1の開閉蓋2の上面部2aを作業面とすると共に、この上面部2aの上方を作業空間Sとし、この作業空間Sの両側方および後方を開放するようにした遮蔽体3を、前記開閉蓋2に設け、この遮蔽体3の少なくとも上面部3aを透視性とし、遮蔽体3の前面部3bに設けた吸引孔4に連結管5の一端を連結すると共に、この連結管5の他端を前記回収ボックス1の一側面部に設けた吸引孔6に連結し、さらに前記回収ボックス1の他側面部に設けた吸引孔7に吸引装置の吸引管8の一端を連結したものとしている。【選択図】 図2