JPS61183666U

JPS61183666U -

Info

Publication number: JPS61183666U
Application number: JP6684085U
Authority: JP
Priority date: 1985-05-08
Filing date: 1985-05-08
Publication date: 1986-11-15

Description

[Brief explanation of drawings]

第１図及び第２図は本考案の実施例を示し、第
１図はカムギヤの間欠ギヤ部の縦断面図、第２図
はカムギヤの間欠ギヤ部と連結ギヤとの噛合い初
めの状態を示す縦断面図、第３図〜第８図は従来
例を示し、第３図は従来のプリンタの概略構成を
示す平面図、第４図は第３図に示すプリンタに備
えられる連結ギヤ部分を示す側面図、第５図〜第
７図は第３図に示すプリンタに備えられる印字ヘ
ツド移動機構を示す説明図で、第５図は要部斜視
図、第６図はヘツドダウン時の状態を示す側面図
、第７図はヘツドアツプ時の状態を示す側面図、
第８図は第３図に示すプリンタにおいて得られる
荷重特性を示す特性図である。１……キヤリツジ、７……モータ、８ｂ……ピ
ニオンギヤ、９……出力軸、１０ａ，１０ｂ……
連結ギヤ、１０ｃ……カム、１０ａ_１……ギヤ歯
、１４……カムギヤ、１４ａ……間欠ギヤ部、１
４ｂ……ギヤ部、１４ｃ……ストツパ部、１４ｄ
……ギヤ歯、１５，１７ａ……ピン、１７……レ
バー、２１……カム、２１ａ……カム溝、６０…
…シヤフト、６６……巻取ラツク、６７……連結
部、７０……引張ばね、７５……記録紙、７６…
…押圧突起、１００……プラテン、１０１……印
字ヘツド。 Fig. 1 and Fig. 2 show an embodiment of the present invention, Fig. 1 is a longitudinal sectional view of the intermittent gear part of the cam gear, and Fig. 2 shows the initial state of meshing between the intermittent gear part of the cam gear and the connecting gear. 3 to 8 show a conventional example, FIG. 3 is a plan view showing a schematic configuration of a conventional printer, and FIG. 4 shows a connecting gear portion provided in the printer shown in FIG. 3. FIGS. 5 to 7 are explanatory diagrams showing a printing head moving mechanism provided in the printer shown in FIG. 3, FIG. 5 is a perspective view of the main parts, and FIG. 6 is a head-down state Side view, Figure 7 is a side view showing the state when the head is up.
FIG. 8 is a characteristic diagram showing the load characteristics obtained in the printer shown in FIG. 3. 1... Carriage, 7... Motor, 8b... Pinion gear, 9... Output shaft, 10a, 10b...
Connection gear, 10c...Cam, 10a ₁ ...Gear tooth, 14...Cam gear, 14a...Intermittent gear part, 1
4b...Gear part, 14c...Stopper part, 14d
...Gear tooth, 15, 17a...Pin, 17...Lever, 21...Cam, 21a...Cam groove, 60...
... Shaft, 66 ... Winding rack, 67 ... Connection section, 70 ... Tension spring, 75 ... Recording paper, 76 ...
...Press projection, 100...Platen, 101...Print head.

Claims

[Scope of utility model registration request]

a moving mechanism for moving a print head mounted on a carriage movable along the platen between a printing position where it is pressed against the platen and a non-printing position where it is away from the platen; a drive source that drives the moving mechanism; In a printer equipped with a connecting gear that transmits a driving force from a drive source to the moving mechanism, and a cam gear that engages with the connecting gear, the gear teeth of the cam gear at the beginning of meshing with the connecting gear are provided with elasticity. Featured printers.