JPS61189042U

JPS61189042U -

Info

Publication number: JPS61189042U
Application number: JP7456385U
Authority: JP
Priority date: 1985-05-20
Filing date: 1985-05-20
Publication date: 1986-11-25

Description

[Brief explanation of drawings]

第１図はこの考案の一実施例を示した斜視図、
第２図は第１図に組込まれている一方のアームの
要部拡大側面図、第３図は第２図の―線断面
図、第４図は第３図とは異なる作動状態を示した
断面図、第５図は従来例の斜視図である。図中、１はプリンタ部、１０はアーム、１１は
ボス、１２は開口部、１３は弾性体膜、１４はつ
まみである。 FIG. 1 is a perspective view showing an embodiment of this invention;
Figure 2 is an enlarged side view of the main part of one arm incorporated in Figure 1, Figure 3 is a sectional view taken along the line - - in Figure 2, and Figure 4 shows a different operating state from Figure 3. The sectional view and FIG. 5 are perspective views of the conventional example. In the figure, 1 is a printer section, 10 is an arm, 11 is a boss, 12 is an opening, 13 is an elastic membrane, and 14 is a knob.

Claims

[Claims for Utility Model Registration] (1) It has a pair of arms facing each other with a predetermined interval, and a boss is coaxially protruded from each of the opposing inner surfaces of the arms. In a roll paper holding device for a printer that rotatably holds the roll paper by fitting the boss into the center hole of the roll paper, at least one of the bosses has a larger opening around it. portions are concentrically formed, and the boss is supported within the opening by an annular elastic membrane having a width substantially greater than the radial spacing between the boss and the opening. A roll paper holding device for a printer, characterized in that the roll paper holding device for a printer is selectively held in a fitted position in which it fits into the center hole and a non-fitted position in which it separates from the center hole by the deformation action of the elastic film. (2) In the utility model registration claim (1), the roll paper holding device in a printer is characterized in that the arm is made of synthetic resin, and the elastic membrane and the boss are integrally molded with the arm. Device. (3) According to utility model registration claim (1) or (2), the roll paper holding device in the printer is characterized in that a knob for operating the boss is provided on the rear side of the boss. Device.