JPH0366759U

JPH0366759U -

Info

Publication number: JPH0366759U
Application number: JP12801189U
Authority: JP
Priority date: 1989-10-31
Filing date: 1989-10-31
Publication date: 1991-06-28
Anticipated expiration: 2004-09-07
Also published as: JPH0634132Y2

Description

[Brief explanation of drawings]

第１図は本考案の断面側面図であつて、第２図
の−線断面図、第２図は第１図の−線断
面平面図、第３図は第２図の−線断面図、第
４図は第３図の−線断面図、第５図及び第６
図は押圧突起の変形例を示す断面図、第７図及び
第８図は押圧突起のさらに変形例を示す側面図、
第９図は第８図の正面図、第１０図は押圧突起の
さらに変形例を示す平面図、第１１図はその平面
図、第１２図は本考案を用いたラベルプリンタの
断面側面図である。図中、１……プラテンローラ、２……サーマル
ヘツド、５……支軸、６……ヘツド固定板、７…
…ヘツド取付板、６ｃ……腕板、８……支持板、
９……ガイド孔、１２，１２ａ，１２ｂ，１２ｃ
，１２ｄ，１２ｅ……板バネ、１５，１５ａ，１
５ｂ，１５ｃ，１５ｄ，１５ｅ……押圧突起。 FIG. 1 is a sectional side view of the present invention, which is a sectional view taken along the line - in FIG. 2, a sectional plan view taken along the - line in FIG. Figure 4 is a - line sectional view of Figure 3, Figures 5 and 6.
The figure is a sectional view showing a modified example of the pressing protrusion, FIGS. 7 and 8 are side views showing further modified examples of the pressing protrusion,
9 is a front view of FIG. 8, FIG. 10 is a plan view showing a further modification of the pressing protrusion, FIG. 11 is a plan view thereof, and FIG. 12 is a cross-sectional side view of a label printer using the present invention. be. In the figure, 1... platen roller, 2... thermal head, 5... spindle, 6... head fixing plate, 7...
...Head mounting plate, 6c...Arm plate, 8...Support plate,
9... Guide hole, 12, 12a, 12b, 12c
, 12d, 12e...plate spring, 15, 15a, 1
5b, 15c, 15d, 15e...pressing projections.

Claims

[Claims for Utility Model Registration] (1) In a thermal printer that prints on heat-sensitive printing paper that passes over a platen roller while being pressed by the elasticity of a leaf spring, a support shaft is provided parallel to and spaced apart from the platen roller. established,
A head mounting plate with a thermal head attached thereto is swingably attached to the spindle, and the leaf spring that urges the thermal head toward the platen roller is disposed approximately at the center in the width direction of the head mounting plate. A thermal printer that has a pressing protrusion formed on the tip of the head to reduce the contact area and is brought into contact with the head mounting plate. (2) The head mounting plate is swingably attached to the support shaft via a support plate provided substantially at the center in the width direction thereof, and further includes guide means for positioning at a predetermined position with respect to the platen roller. The thermal printer described in item 1. (3) The thermal printer according to claim 1, wherein the pressing protrusion has a shape having a small contact area at least in the axial direction of the platen roller.