JPH0483648U

JPH0483648U -

Info

Publication number: JPH0483648U
Application number: JP12901490U
Authority: JP
Priority date: 1990-11-29
Filing date: 1990-11-29
Publication date: 1992-07-21

Description

[Brief explanation of the drawing]

第１図ａは、実施例の断面図、第１図ｂは、第
１図ａ中のＡ−Ａ拡大矢視図、第２図ａは、外側
プラテンノブ収納時の断面図、第２図ｂは、第２
図ａのＢ−Ｂ拡大矢視図、第３図は、従来例の断
面図である。１１……筐体、１２……サイドプレート、１３
……軸受け、１４……プラテンシヤフト、１６ａ
，１６ｂ……嵌め合い溝、１７……ノブ固定部、
１８ａ，１８ｂ……嵌合部、１９……内側プラテ
ンノブ、２０……案内溝、２０ａ，２０ｂ……直
線状溝、２０ｃ……内側屈曲溝、２０ｄ……外側
屈曲溝、２１……外側プラテンノブ、２２……ス
ライダ、２３……ノブ出入口、２６……ばね。 Fig. 1a is a sectional view of the embodiment, Fig. 1b is an enlarged view taken along the line A-A in Fig. 1a, Fig. 2a is a sectional view when the outer platen knob is stored, Fig. 2b is the second
FIG. 3, which is an enlarged view taken along the line BB in FIG. a, is a sectional view of the conventional example. 11... Housing, 12... Side plate, 13
... Bearing, 14 ... Platen shaft, 16a
, 16b...fitting groove, 17...knob fixing part,
18a, 18b... Fitting portion, 19... Inner platen knob, 20... Guide groove, 20a, 20b... Linear groove, 20c... Inner bending groove, 20d... Outer bending groove, 21... Outer platen knob, 22...slider, 23...knob entrance, 26...spring.

Claims

[Scope of Claim for Utility Model Registration] A side plate provided inside the casing of the printer, a platen shaft rotatably attached to the side plate via a bearing, and an outer circumferential side surface on the end side of the platen shaft. a fitting groove formed therein; a knob fixing part having a fitting part fitted into the fitting groove; and a cylindrical part formed in the knob fixing part and having an opening on the opposite side of the knob fixing part. an inner platen knob, two linear grooves formed substantially parallel to the platen shaft on the outer peripheral side of the inner platen knob, and an inner side connected to each end of each linear groove on the knob fixing part side A guide formed by an inner bent groove bent toward the opening side of the platen knob, and an outer bent groove connected to each end of each linear groove on the inner platen knob opening side and bent toward the opening side of the inner platen knob. a groove, and a cylindrical groove that is freely inserted into and out of the housing through a knob entrance and exit provided in the housing, and loosely inserted along the outer circumferential side of the inner platen knob through an opening provided on the knob fixing part side. an outer platen knob; a slider formed on the inner circumferential surface of the outer platen knob and slidably inserted into the guide groove; and urging the outer platen knob in a direction opposite to the knob fixing part side. A mounting mechanism for a platen knob comprising a spring provided between the inner platen knob and the outer platen knob.