JPH0481747U

JPH0481747U -

Info

Publication number: JPH0481747U
Application number: JP12571390U
Authority: JP
Priority date: 1990-11-27
Filing date: 1990-11-27
Publication date: 1992-07-16

Description

[Brief explanation of the drawing]

第１図及び第２図は本考案の一実施例を示すも
ので、第１図はプラテンにピンチローラを接触さ
せた状態を示す正面図、第２図はプラテンからピ
ンチローラを離反させた状態を示す正面図、第３
図ないし第６図は従来例を示すもので、第３図は
はプラテンにピンチローラを接触させた状態を示
す正面図、第４図はプラテンからピンチローラを
離反させた状態を示す正面図、第５図は第３図に
おけるＡ−Ａ線部の縦断側面図、第６図は操作部
によるローラ軸の押圧動作を示す側面図である。１……プラテン、７……ピンチローラ、８……
ローラ軸、９……付勢手段、１１……操作部、１
２……押圧部、１５……第一のラツク、１６……
第二のラツク、１７……第一のギヤ、１８……第
二のギヤ。 Figures 1 and 2 show an embodiment of the present invention, with Figure 1 being a front view showing the pinch roller in contact with the platen, and Figure 2 showing the pinch roller separated from the platen. Front view showing 3rd
6 to 6 show conventional examples, FIG. 3 is a front view showing the state where the pinch roller is in contact with the platen, FIG. 4 is a front view showing the state where the pinch roller is separated from the platen, 5 is a longitudinal sectional side view taken along line A--A in FIG. 3, and FIG. 6 is a side view showing the pressing operation of the roller shaft by the operating section. 1...Platen, 7...Pinch roller, 8...
Roller shaft, 9...Biasing means, 11...Operation unit, 1
2... Pressing part, 15... First rack, 16...
Second rack, 17...first gear, 18...second gear.

Claims

[Claims for Utility Model Registration] 1. A platen, a pinch roller parallel to the platen, a biasing means for biasing a roller shaft holding the pinch roller toward the platen, and a biasing means for biasing one end of the roller shaft toward the platen. an operating section having a pressing section that presses in a direction opposite to the urging direction; a first gear fixed to one end of the roller shaft on the operating section side; a first rack meshed with a first gear; and a second gear defined by a module larger than the module of the first gear and fixed to the other end of the roller shaft on the opposite side from the operating section. and a second rack disposed along the biasing direction of the roller shaft and meshed with the second gear. 2. The pinch roller contact/separation device for a printing machine according to claim 1, wherein the pitch circle of the second gear is larger than the pitch circle of the first gear.