JPH0434519Y2 - - Google Patents

Description

[Detailed description of the invention] <Industrial field of application> This invention relates to an optical part protection device, and more specifically, in a copying machine that exposes a document by reciprocating the optical part, the optical part is protected during transportation. This invention relates to an optical part protection device for protecting.

<Conventional technology> Conventionally, in a type of copying machine that exposes a document by reciprocating the optical section, the optical section is composed of two frames, and a guide shaft is inserted into one side of both frames. At the same time, a device in which the other side is supported on a guide rail is generally used. Therefore, if vibrations, shocks, etc. are applied during transportation, the frame rotates around the guide shaft and collides with the top surface of the guide rail, which adversely affects the slider, which is formed in a shape with low frictional resistance. In the worst case, the slider may be damaged. In this case, one of the two frames has a weight that is approximately three times greater than the other, and the slider of the heavier frame is damaged first, followed by the slider of the lighter frame. It is known to do.

Based on this knowledge, conventionally, a copying machine has been transported with both frames fixed by inserting a cushion material and fixing them with tape or screws.

<Problems to be solved by the invention> With the above configuration, it is possible to reliably prevent damage to the optical part during transportation.
Since it is fixed inside the frame, it is necessary to remove the contact glass, cover, and other parts of the copying machine and remove the cushioning material, tape, screws, etc. after transportation, which poses a problem in that the work is time-consuming. In particular, when removing the contact glass, extreme care must be taken to avoid scratching the edges of the contact glass or causing injury.

Furthermore, since parts of the copying machine are removed, there is a risk of lead wires being pinched when resetting the parts after removing the cushioning material, tape, screws, etc. There is a problem that there is a risk of it being lost.

Furthermore, some countries have established standards that require copying machines to be ready for operation without removing the cover after shipping, and under these standards, the optical parts as mentioned above must be kept in operable condition. There is a new problem that fixation methods cannot be adopted.

<Means for solving the problem> In order to solve the above problem, the optical part protection device of this invention has a frame and an exterior body directly above the home position position of the frame that constitutes the optical part. A bolt insertion hole is formed, and a long bolt and a short bolt are selectively screwed into the bolt insertion hole. The short bolt is formed to a length that allows the frame to be fixed by pressing, and the short bolt is formed to a length that does not impede the reciprocating movement of the frame in the screwed state.

However, the optical part may be composed of two frames, and the bolt insertion holes may be formed directly above the home position of each frame, and the optical part may be composed of two frames. is configured and 2
The two frames may be configured to be able to mutually restrict the amount of vertical movement at the home position, and the bolt insertion hole may be formed directly above the home position of one of the frames.

<Function> With the optical part protection device having the above configuration, the frame body can be removed by screwing a long bolt into the bolt insertion hole while the frame body constituting the optical part has been moved to the home position. By pressing and fixing the frame onto the guide rail, it is possible to prevent the frame from vibrating during transportation, and by screwing short bolts into the bolt insertion holes, the frame can be freely moved back and forth along the guide rail. It can be made possible.

In addition, if the optical part is composed of two frames and the bolt insertion hole is formed directly above the home position of each frame, each frame can be fixed by pressing.
and free reciprocating movement can be selectively achieved.

Furthermore, the optical section is composed of two frames, and the two frames are configured to be able to mutually regulate the amount of vertical movement at the home position,
If the bolt insertion hole is formed directly above the home position position of one frame, the bolt can press and fix only one frame and achieve free reciprocating movement, and one frame can be used to connect the other frame. Vibration prevention of the frame can be achieved.

<Examples> Hereinafter, examples will be described in detail with reference to the accompanying drawings showing examples.

FIG. 5 is a perspective view showing the optical section, and the light source 1
1, and the first frame 1 to which the first reflecting mirror 12 is attached.
A second frame body 2 to which a second reflecting mirror 21 and a third reflecting mirror 22 are attached are supported by a guide shaft 3 and a guide rail 4 so as to be movable back and forth.

To explain in more detail, both the above-mentioned frames 1 and 2
is slidably fitted to the guide shaft 3 at a predetermined position on one side, and sliders 13 and 23 attached at a predetermined position on the other side are brought into slidable contact with the upper surface of the guide rail 4. Then, among the driving wires 52 whose both ends are fixed to fixed parts of the copying machine main body and whose central parts are wound around the driving drum 51, one of the feeding parts from the driving drum 51 is wound around the guide pulley 53, and the first part is wound around the guide pulley 53. The wire is fixed to a wire fixing plate 14 attached to the frame 1 and further wound around a driven pulley 24 attached to the second frame 2. In addition, the other feeding portion from the drive drum 51 is connected to the tension pulley 54, the guide pulley 55, and the driven pulley 24.
It is wrapped around.

Therefore, by changing the rotational direction of the drive drum 51, both the frames 1 and 2 can be moved back and forth, and the moving speed of the first frame 1 can be made equal to the moving speed of the second frame 2. It can be set to double.

FIG. 1 is a longitudinal cross-sectional view showing the optical part protection device. Bolt insertion holes 63 and 64 are formed in the main body frame 61 and the synthetic resin exterior body 62, respectively. And frame 6
The bolt insertion hole 63 formed in 1 is formed with a female thread that screws into a long bolt 71 and a short bolt 72, which will be described later. Short bolt 72
It is formed into an inner hole that can be loosely inserted.

The long bolt 71 has a nut 73 threaded in the middle, and is inserted into the bolt insertion holes 63 and 64 until the tip comes into contact with the upper surface of one of the frames. By screwing the long bolt 71 until it comes into contact with the upper surface of the body 62, the long bolt 71 can be prevented from loosening, and the frame 61 and the exterior body 62 can be integrally coupled.

The short bolt 72 has bolt insertion holes 63, 6
4 and in a screwed state, the length is set such that the tip portion slightly protrudes inward from the frame 61.

Note that 65 is a contact glass, and a document position regulating plate 66 and a document presser 67 that can be opened and closed are attached to the upper surface of the contact glass.

With the above configuration, when transporting the copying machine, as shown in FIG. 71 into bolt insertion holes 63, 64
By inserting the sliders 13 and 23 into the guide rail 4 and screwing them together, the sliders 13 and 23 attached to both the frames 1 and 2
The sliders 13 and 23 can be press-fixed to the upper surface of the slider, and even if vibrations or shocks are applied during transportation, the sliders 13 and 23 will not vibrate, and damage can be reliably prevented.

In addition, when using a copying machine, as shown in FIG. In addition to allowing the bodies 1 and 2 to freely reciprocate, the bolt insertion holes 63 and 64 can be closed to reliably prevent foreign matter from entering, and the frame 61 and the exterior body 62 can be Can be strongly integrated.

In the above embodiment, it is not possible to directly visually judge the screwing length of the long bolt 71;
There is a risk of damaging the slider by pressing too much on either frame, but as a long bolt 71, as shown in FIG.
The above-mentioned disadvantages can be reliably solved by adopting a configuration in which the above-mentioned parts are attached.

Further, as shown in FIG. 4, they are engaged with each other at the home position, and the second
Engagement parts 15 and 25 that regulate the amount of vertical movement of the frame body 2
Even if a configuration is adopted in which only the first frame body 1 is pressed and fixed by the long bolts 71, it is possible to effectively prevent damage during transportation as in the above embodiment, and also to prevent the bolts from being damaged during transportation. Since the number of lines can be reduced to one, the operation becomes easier.

<Effects of the invention> As described above, this invention allows the optical part to be easily pressed and fixed by simply inserting long bolts and short bolts from the outside of the copier body and screwing them together. back-and-forth movement can be selectively achieved,
This provides unique practical effects such as reliable protection of the optical part and simplification of operation.

[Brief explanation of the drawing]

Figure 1 is a longitudinal sectional view showing the protected state of the optical part, Figure 2
The figure is a vertical cross-sectional view showing the optical part in an operable state, FIG. 3 is a vertical cross-sectional view showing another embodiment of the long bolt, and FIG.
The figure is a longitudinal sectional view showing another embodiment of the optical part protection device, and FIG. 5 is a perspective view showing the optical part. 1... First frame body, 2... Second frame body, 4... Guide rail, 61... Frame, 62... Exterior body,
63, 64... Bolt insertion hole, 71... Long bolt, 72... Short bolt.

Claims (1)

[Scope of Claim for Utility Model Registration] 1. In a copying machine that exposes a document by reciprocating the optical section, a bolt insertion hole is provided in the frame and the exterior body directly above the home position of the frame that constitutes the optical section. A long bolt and a short bolt are formed and are selectively screwed into the bolt insertion hole, and the long bolt is
The length of the short bolt is such that the frame body can be pressed and fixed onto the guide rail in the screwed state, and the short bolt is formed in a length that does not obstruct the reciprocating movement of the frame body in the screwed state. Optical protection device featuring: 2. The optical part protection according to claim 1 of the above-mentioned utility model registration claim, wherein the optical part is composed of two frames, and the bolt insertion holes are formed directly above the home position of each frame. Device. 3 The optical section is composed of two frames, and the two frames are configured to be able to mutually regulate the amount of vertical movement at the home position position, and the bolt insertion hole is located at the home position of one frame body. The optical part protection device according to claim 1, which is formed directly above the optical system position.