JPH03100872U

JPH03100872U -

Info

Publication number: JPH03100872U
Application number: JP759190U
Authority: JP
Priority date: 1990-01-31
Filing date: 1990-01-31
Publication date: 1991-10-22

Description

[Brief explanation of drawings]

第１図は本考案の一実施例の断面図、第２図は
ウイツク装着時のウイツクスプリングの形状変化
を示す断面図、第３図は該ウイツクスプリングの
ストローク荷重特性図、第４図は本考案の第２実
施例の断面図、第５図はウイツク装着時のモール
ドばねの形状変化を示す断面図、第６図は該ウイ
ツクスプリングのストローク荷重特性図、第７図
は従来の定着装置の斜視図、第８図はその要部の
断面図、第９図はウイツクスプリングのストロー
ク荷重特性図を示す。１……ヒートロール、１０……ウイツク、１０
ａ……フエルト部、１０ｂ……弧状突起部、１２
……カバーヒート、１４……ウイツクスプリング
、１４ａ，１４ｂ……第１、第２の角部（または
弧状部）、１５……モールドばね。 Fig. 1 is a sectional view of an embodiment of the present invention, Fig. 2 is a sectional view showing changes in the shape of the wick spring when the wick is installed, Fig. 3 is a stroke load characteristic diagram of the wick spring, and Fig. 4. is a sectional view of the second embodiment of the present invention, FIG. 5 is a sectional view showing the shape change of the molded spring when the wick is installed, FIG. 6 is a stroke load characteristic diagram of the wick spring, and FIG. 7 is a diagram of the conventional wick spring. FIG. 8 is a perspective view of the fixing device, FIG. 8 is a cross-sectional view of its essential parts, and FIG. 9 is a stroke load characteristic diagram of the Wick spring. 1...Heat roll, 10...Witsuku, 10
a... Felt part, 10b... Arc-shaped protrusion part, 12
...Cover heat, 14...Wick spring, 14a, 14b...First and second corner portions (or arcuate portions), 15...Mold spring.

Claims

[Claims for Utility Model Registration] (1) In a residual toner removal device of a fixing device that uses a wick to clean a heat roll that fixes a transfer medium on which a toner image is formed by heating and pressure, an inner surface of a cover heat of the heat roll; supports one end of an elastic member that presses the toner removing portion of the toner against the heat roll, and rotates the elastic member from the one end through at least one of an arc and a corner, and rotates the free end of the elastic member to the inner surface of the cover heat. When the wick is attached or removed, the arcuate protrusion of the wick presses against the arc or corner of the elastic member, and the free end of the elastic member slides on the inner surface of the cover heat. Features a residual toner removal device for the fixing device. (2) In a residual toner removing device for a fixing device that uses a wick to clean a heat roll that fixes a transfer medium on which a toner image has been formed under heat and pressure, a toner removing portion of the wick is provided on the inner surface of a cover heat of the heat roll. one end of an elastic member that presses against the heat roll is supported, and the elastic member is shaped so that its free end rotates from the one end through at least one of an arc and a corner so that it comes close to the inner surface of the cover heat; An elastic portion is formed by cutting out the cover heat at a position facing the free end of the elastic member of the heat, and when the wick is attached or removed, the arcuate protrusion of the wick presses against the arc or corner of the elastic member. . A residual toner removing device for a fixing device, wherein a free end of the elastic member curves an elastic portion of the cover heat.