PROBLEM TO BE SOLVED: To provide a minute lead weight fitting device in which a small minute lead weight can easily be assembled in a fishing line.SOLUTION: A minute lead weight fitting device is constituted of an enclosure having an outer frame 20, a bearing 210 of a bobbin where a belt-shaped lead board 30 disposed in the enclosure is wound around, a lead board pushing device 40, a molding device 50 and a press cutting device 60. The minute lead weight fitting device is characterized by: providing an inlet-shaped work groove 200 with an opening for introducing a fishing line into an outer frame； extruding the lead board fed from the bobbin toward the work groove by the slide operation of a slide key 41 of the lead board pushing device； performing push-in operation of a molding key 51 of the molding device and molding the lead board into the V-shape by a molding arm 240； pressing the V-shaped lead board using a pressing board 61 and clamping and fixing the fishing line, by the push-in operation of a press cutter operation key 63 of the press cutting device； and then, shearing and separating between a cutter 62 and a cutter base 65, and assembling the lead board forming the minute lead weight into the fishing line.SELECTED DRAWING: Figure 3一種咬鉛安裝器，包括一殼體、一鉛片、一推料裝置、一成型裝置及一壓切裝置，該殼體具有一溝槽，於內部具有一第一容室，該第一容室的一側具有一進料槽貫通到該溝槽，該鉛片呈長條狀且捲繞成卷地設在該第一容室中，使該鉛片的一端穿設於該進料槽中，該推料裝置設於該殼體上，可將進料槽中的鉛片推送至使端部橫向跨設於該溝槽中，該成型裝置包含結合於該殼體上之一成型鍵及結合於該成型鍵上之一成型壓舌，該成型鍵可被按壓以帶動該成型壓舌的一端凸伸到該溝槽中供將橫向跨設之鉛片向下壓彎成V字形，使可供將一釣線由該溝槽置入至其之凹陷部中，該壓切裝置包含一壓板、一裁刀及一壓切鍵，該壓切鍵結合在該殼體上並可帶動該壓板及該裁刀移動，以使該壓板可將該V字形的鉛片壓合使其夾住該釣線，以及使該裁刀可將該鉛片切斷以形成夾住該釣線之咬鉛；藉由上述結構係可方便快速的於釣線上安裝較小尺寸的咬鉛，以利於平均配置咬鉛的位置，進而達到利於魚訊的傳達及使魚餌的漂動較自然之目的。
