JPH0456154U

JPH0456154U -

Info

Publication number: JPH0456154U
Application number: JP9894690U
Authority: JP
Priority date: 1990-09-25
Filing date: 1990-09-25
Publication date: 1992-05-14

Description

[Brief explanation of drawings]

第１図は、本考案の一実施例の構成図、第２図
は、同ロール紙保持用スピンドル部の構成図、第
３図は、ロール紙カバーに設けた、スピンドルギ
ヤと噛合するラツク部を示す図である。１……プラテンローラ、２……サーマルヘツド
、４……ロール紙カバー、７，８……リンク機構
、９……スピンドル、１０……ギヤ、１１……ト
ルクリミツタ、１２……ラツク。 Fig. 1 is a block diagram of an embodiment of the present invention, Fig. 2 is a block diagram of the roll paper holding spindle section, and Fig. 3 is a rack section provided on the roll paper cover that meshes with the spindle gear. FIG. 1... Platen roller, 2... Thermal head, 4... Roll paper cover, 7, 8... Link mechanism, 9... Spindle, 10... Gear, 11... Torque limiter, 12... Rack.

Claims

[Claims for Utility Model Registration] A roll paper cover that has a rotation shaft and is opened and closed for loading roll paper; one end is supported by the roll paper cover at a first rotation fulcrum, and the middle part It is supported by a second pivot point on a side plate, etc., and the other end abuts the thermal head.
a link mechanism in which the other end pushes the thermal head away from the platen roller when the roll paper cover is opened;
a spindle rotatably mounted on the shape portion; a gear with a torque limiter rotatably attached to the spindle and transmitting torque of a predetermined value or less to the spindle; and a gear provided on the roll paper cover, the roll paper cover a rack that engages with the gear only during opening/closing of the roll paper cover and drives the gear so as to rotate the roll paper in a direction opposite to the direction in which the roll paper is sent out when the roll paper cover is closed; A printing device that uses roll paper.