JPH0162054U - - Google Patents

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図ａは本考案のトラクタ機構を適用したプ
リンタの側面図、第１図ｂは本考案のトラクタ機
構の要部平面図、第２図は従来のプリンタの側面
図、第３図は従来のプリンタの展開平面図である
。 図に於いて、１はプラテン、２は連続帳票、３
はインクリボン、４は印字ヘツド、５ａは上トラ
クタ、５ｂは下トラクタ、６はモータ、７ａ，７
ｂはベルト、８ａ，８ｂはプーリ、９は調整手段
、１０はフレーム、１１は支軸、１２は引張りば
ね、１３は摘みねじ、１４はねじ板、１５はスプ
ロケツトピン、１６はピンベルトである。 Figure 1a is a side view of a printer to which the tractor mechanism of the present invention is applied, Figure 1b is a plan view of essential parts of the tractor mechanism of the present invention, Figure 2 is a side view of a conventional printer, and Figure 3 is a conventional printer. FIG. 2 is a developed plan view of the printer. In the diagram, 1 is the platen, 2 is the continuous form, and 3 is the platen.
is an ink ribbon, 4 is a print head, 5a is an upper tractor, 5b is a lower tractor, 6 is a motor, 7a, 7
b is a belt, 8a and 8b are pulleys, 9 is an adjusting means, 10 is a frame, 11 is a spindle, 12 is a tension spring, 13 is a thumbscrew, 14 is a screw plate, 15 is a sprocket pin, and 16 is a pin belt. .

Claims (1)

【実用新案登録請求の範囲】 プラテン１と、 前記プラテン１に連続帳票２とインクリボン３
とを介して対向した印字ヘツド４と、 前記プラテン１に対して移送方向の前後に設け
られ、回転自在なるピンベルト１６のスプロケツ
トピン１５を前記連続帳票２の両側のスプロケツ
ト孔に係合する２組のトラクタ５ａ，５ｂとから
構成したプリンタに於いて、 前記トラクタ５ａ，５ｂの前記スプロケツトピ
ン１５間の距離を変化する調整手段９を一方のト
ラクタに設けたことを特徴とするトラクタ機構。[Claims for Utility Model Registration] A platen 1, a continuous form 2 and an ink ribbon 3 on the platen 1.
a printing head 4 facing each other via a printing head 4; and 2 for engaging sprocket pins 15 of a freely rotatable pin belt 16 provided in front and rear of the platen 1 in the transport direction with sprocket holes on both sides of the continuous form 2. A tractor mechanism comprising a printer comprising a set of tractors 5a and 5b, wherein one of the tractors is provided with an adjustment means 9 for changing the distance between the sprocket pins 15 of the tractors 5a and 5b.