Screw fastening structure
A screw tightening and screw technology, applied in the direction of threaded fasteners, screws, nuts, etc., can solve the problems of inability to implement screw tightening, damaged tightening, failure, etc.
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no. 1 approach
[0063] (1) Explanation of an example of an imaging device
[0064] figure 1 is a schematic diagram showing the overall structure of the imaging device 30 according to one embodiment of the present invention. First, imaging processing is described. figure 1 It is merely an example for illustration, and the present invention is not limited thereto.
[0065] figure 1 The image forming device 30 is an electrophotographic image forming device of a four-color (full-color) intermediate transfer type. At the center portion of the imaging device main body 30A, at figure 1 Four (first to fourth) electrophotographic photosensitive drums 10a to 10d are arranged in series in order from left to right in order to form yellow (Y), magenta (M), cyan (C), and A toner image of a corresponding color of black (K).
[0066] Around each of those electrophotographic photosensitive drums (hereinafter referred to as "drums") 10a to 10d are provided electrophotographic image forming processing uni...
no. 2 approach
[0130] Figure 14A , 14B , and 15 show different shapes of the half-piercing flange obtained by improving the first embodiment for further stable fastening. The reference shows the half pierced flange Figure 14A , 14B , and 15 describe the shape in detail.
[0131] Figure 14A and 14B are a plan view and a sectional view of a part of an ITB unit of an imaging apparatus showing a half-punctured cuff according to a second embodiment of the present invention. Figure 15 is an enlarged perspective view of the rear portion of the ITB unit of the imaging device, showing the half-piercing cuff according to the second embodiment.
[0132] exist Figure 14A , 14B , and 15, when the shoulder screw 100 is fastened from the screw fastening side plane 177 of the transfer rear side plate 107, the three parts of the screw fastening side plane abut against the inside with respect to the shoulder portion diameter 127, and the shoulder Screw 100 is tightened. The concave and protrudi...
no. 3 approach
[0143] Figure 16A and 16B are a plan view and a sectional view showing a part of an ITB unit of an imaging apparatus showing a half-punctured cuff according to a third embodiment of the present invention. When the bearing surface does not cooperate with the fastening surface in three directions, the half-stamped portion can be arranged in four directions in order to obtain stable stress distribution on the bearing surface and increase strength in vertical and lateral directions.
[0144] as reference Figure 2A , 2B , and 3 described, not only the stress of the shoulder screw 100 but also the stress of the transfer rear side plate 107 is applied to the tension roller bushing 102, and the force acts on the inside to cause the screw fastening side plane 177 to bend. In the case where a large spring force is set or the reaction force is large, the post-transfer side plate 107 may be deformed and the screw-fastened side plane may be bent.
[0145] As a reinforcement scheme to...
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Abstract
Description
Claims
Application Information
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