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Snap-fit ​​detachment prevention mechanism, image forming device

A technology for an image and a mounting part, which is applied to the field of a snap-off preventing mechanism and an image forming device, can solve problems such as inability to eliminate, and achieve the effect of preventing the snap-fit ​​locking part from falling off.

Active Publication Date: 2019-11-19
RICOH KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this does not eliminate the problems (1), (2) above

Method used

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  • Snap-fit ​​detachment prevention mechanism, image forming device
  • Snap-fit ​​detachment prevention mechanism, image forming device
  • Snap-fit ​​detachment prevention mechanism, image forming device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0054] Embodiment 1 of the present invention will be described below. The snapping-off prevention mechanism according to Embodiment 1 has a T-shaped portion for snapping (abbreviated as a T-shaped portion in this specification, and indicated by reference numeral 6-4). The T-shaped part 6-4 is provided with the elastic member 3b-6 of the cantilever at the installation part of the magnet clip 6, and the protrusion 3b-7 provided at the tip of the elastic member 3b-6, and the T of the magnet clip 6. The insertion hole 3b-1a into which the character part 6-4 is inserted and fitted. Specifically, the T-shaped portion 6-4 provided in the magnet clip 6 is inserted through the attachment portion of the magnet clip 6 of the front door 3b. Moreover, the front door 3b is integrally formed with a pair of left-right symmetrical elastic members 3b-6 whose outer frame (shape) is the insertion hole 3b-1a and the slit part 3b-5 fitted. In addition, a protrusion 3b-7 is provided at the tip of ...

Embodiment approach 2

[0058] Embodiment 2 of the present invention will be described below. In the snap-fit ​​fall-off preventing mechanism according to the second embodiment, the elastic member 3b-6 is provided with a pinch-shaped portion 3b-8. That is, a mechanism is provided to prevent the removal of the snap from becoming difficult due to the provision of the snap-off prevention mechanism.

[0059] In the configuration of Embodiment 1, when removing the magnet clip 6 from the front door 3b for repair or the like, it is necessary to pass the T-shaped portion 6-4 through the insertion hole 3b-1a. Therefore, it is necessary to bend the elastic member 3b-6 to raise the protrusion 3b-7. As such a lifting mechanism, the protrusion 3b-7 can only be raised by inserting a flathead screwdriver or the like into the gap near the protrusion 3b-7. However, there are two T-shaped parts 6-4 for one magnet clip. Therefore, it is necessary to simultaneously lift the two projections 3b-7 with a flat-blade scre...

Embodiment approach 3

[0061] Embodiment 3 of the present invention will be described below. The snap-fit ​​fall-off preventing mechanism according to Embodiment 3 is provided on the side of the elastic member 3b-6 (in a direction parallel to the mounting surface of the magnet clip 6) and the lower pressing piece 3b-10 is installed toward the front door 3b of the magnet clip 6. Time is not covered by the magnet clip 6. In other words, it is a configuration in which the release of the snap-off prevention mechanism can be easily operated without disassembling parts or units.

[0062] In the structure of Embodiment 2, the mechanism (operating surface) for removing the magnet clip 6 from the front door 3b is provided toward the back part of the front door 3b (mounting surface of the magnet clip 6). Therefore, when it is difficult to handle the back surface, it is necessary to disassemble other parts or units in order to remove the magnet clip 6 . In order to solve this problem, the lower pressing piec...

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PUM

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Abstract

According to the present invention, there is provided a mechanism which is arranged in a magenet holder mounted on the housing cover on the front door by means of attachment to prevent an engating portion from being detached, furthermore, to prevent the magnet holder from dropping off from the front door. This is an attachment drop-off prevention mechanism to prevent the magnet holder (6) in the attachment from dropping off from the installation part. The T-shpaed part (6-4) mounted to the magnet holder (6) in the embedding hole (3b-1) in the front door (3b) is an elastic member (3b-6) with a suspension arm at the installation part of the magnet holder (6), a protrusion part (3b-7) arranged at the initial end of the elastic member (3b-6), and an insert hole (3b-1a) embedded with the T-shaped part (6-4) of the magnet holder (6). In order to take off the magnet holder (6) from the front door 3b, the elastic member needs to be bent to lift the protrusion part (3b-7) up, so that the magnet holder (6) is not easy to drop off.

Description

technical field [0001] The present invention relates to a snap-off prevention mechanism used for attaching and removing a magnetic catch, and an image forming apparatus including the mechanism. Background technique [0002] The switches of the front doors 2 and 3 used in the electrophotographic image forming apparatus are as follows: figure 1 , figure 2 , image 3 As shown, the handle portion 3c is opened by being pulled toward the front, and closed by being pushed in the opposite direction. Front door 2, 3 when closed eg Figure 4 , Figure 5 As shown, it is held by the attraction force (magnetic force) of the magnet clip 6 fixed on the front door. That is, the metal frame 5 - 2 or the frame reinforcing plate 5 - 3 provided on the main body 1 is brought into contact with and held by the attraction force (magnetic force) of the magnet clip 6 . [0003] Image 6 , Figure 7 , Figure 11 , Figure 12 Shown is the figure that is used for explaining the installation m...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G03G21/16
CPCG03G21/1633
Inventor 中村健一
Owner RICOH KK