JPH02111164U

JPH02111164U -

Info

Publication number: JPH02111164U
Application number: JP2125589U
Authority: JP
Priority date: 1989-02-23
Filing date: 1989-02-23
Publication date: 1990-09-05
Anticipated expiration: 2004-02-23
Also published as: JPH08687Y2

Description

[Brief explanation of drawings]

第１図ないし第３図は、第１の考案の画像形成
装置の一実施例における、要部としての上下両ユ
ニツトを示す図であつて、第１図は両ユニツトを
装置本体から引き出した状態を示す正面図、第２
図は両ユニツトを装置本体に押し込んだ状態を示
す正面図、第３図は本体から引き出された上部ユ
ニツトを一定量回動させた状態を示す正面図、第
４図は第２の考案の画像形成装置の一実施例にお
いて、要部としての上下両ユニツトを装置本体か
ら引き出した状態を示す正面図、第５図ａは第１
の考案における係合部と被係合部との働きを説明
する概略図、同図ｂは第２の考案における係合部
と被係合部との働きを説明する概略図、第６図は
実施例の画像形成装置の内部構造を示す概略図、
第７図は実施例の画像形成装置の外観を示す斜視
図、第８図ａ，ｂは従来の画像形成装置における
ユニツトの引き出し前後の状態を示す概略図であ
る。１……装置本体、Ｑ１……支軸、Ｕ１……上部
ユニツト、Ｕ２……下部ユニツト、５……定着手
段、５１……加熱ローラ、５２……加圧部材（加
圧ベルト）、Ｔ……係合部（突起）、１５ｃ……
被係合部（当接面）、１５ｄ……被係合部（傾斜
面）。 1 to 3 are views showing both the upper and lower units as essential parts in an embodiment of the image forming apparatus of the first invention, and FIG. 1 shows a state in which both units are pulled out from the main body of the apparatus. Front view showing the second
The figure is a front view showing both units pushed into the device body, Figure 3 is a front view showing the upper unit pulled out from the body and rotated a certain amount, and Figure 4 is an image of the second device. In one embodiment of the forming apparatus, FIG.
Fig. 6 is a schematic diagram explaining the function of the engaging part and the engaged part in the second invention; A schematic diagram showing the internal structure of an image forming apparatus according to an embodiment,
FIG. 7 is a perspective view showing the external appearance of the image forming apparatus according to the embodiment, and FIGS. 8 a and 8 b are schematic views showing the state of the conventional image forming apparatus before and after the unit is pulled out. DESCRIPTION OF SYMBOLS 1... Apparatus body, Q1... Support shaft, U1... Upper unit, U2... Lower unit, 5... Fixing means, 51... Heat roller, 52... Pressure member (pressure belt), T... ...Engaging part (protrusion), 15c...
Engaged portion (abutting surface), 15d...Engaged portion (slanted surface).

Claims

[Claims for Utility Model Registration] 1. A fixing means for fixing the toner image transferred to the surface of the paper by inserting the paper between a heating roller and a pressure member pressed against the heating roller. In the image forming apparatus, the pressure member is provided in a lower unit that can be pulled out from the apparatus main body, and the heating roller is provided in an upper unit that is rotatably connected to the lower unit. The device body and the upper unit are provided with an engaging portion that engages with each other when the lower unit is pushed into the device body with the upper unit incompletely closed, and prevents the lower unit from being pushed into the device body. An image forming apparatus comprising: and an engaged portion. 2. A fixing means is provided for fixing the toner image transferred to the surface of the paper by inserting the paper between a heating roller and a pressure member that is pressed against the heating roller, and the above-mentioned pressure member is , an image forming apparatus in which a lower unit that can be pulled out from the apparatus main body is provided, and a heating roller is provided in an upper unit that is rotatably connected to the lower unit; An engaging portion and an engaged portion are provided that engage with each other and completely close the upper unit when the lower unit is pushed into the device main body with the upper unit incompletely closed. An image forming apparatus characterized by: