JPH0434491Y2 - - Google Patents

Description

[Detailed description of the invention] Industrial application field This invention is used in optical systems such as copying machines.
For example, it relates to a mounting holder for optical components that holds a reflecting mirror or the like.

Conventional technology As a structure for holding optical components such as a reflecting mirror,
Structures shown in FIGS. 4 to 6 have been proposed.

In the mounting and holding structure shown in Fig. 4, a holding plate b is fixed to a wall surface (an optical system holding structure part) a with screws c, and a reflecting mirror e is held between a mounting surface d of the wall surface a and the holding plate b. I have to.

In addition, in the mounting and holding structure shown in FIG. 5, an opening g is provided in the casing f, a reflecting mirror h is inserted into the opening g, and a mounting holder j having elasticity as shown in FIG. 6 is inserted into the remaining opening i. is inserted to attach the reflecting mirror h to the housing f.

Problems that the invention aims to solve However, in the former case, when installing the reflector e,
It is necessary to tighten the screw C while pressing the reflector e against the mounting surface d, which not only causes variations in the amount of pressing force of the reflector e against the mounting surface d, but also requires the screw c of the holding plate b, which requires a large number of parts. , it is weak against impact force and the reflector e easily falls off.

Further, in the latter case, it is necessary to provide thick walls on both sides of the openings g and i that can sufficiently withstand the elastic force of the mounting holder j.

Therefore, this mounting and holding structure cannot be used structurally when optical components are to be mounted at the end of the housing f, and there are also problems such as the housing f becomes large and weight cannot be reduced. .

Purpose of the invention This invention was devised to solve the above-mentioned problems. It does not require screws, has a small number of parts, can mount and hold optical components with a single touch, with high precision, and has a high durability. An object of the present invention is to provide a mounting holder for an optical component that has excellent impact resistance and does not require thick walls on both sides of the optical component.

Summary of the invention Therefore, this invention has a mounting part for optical components,
An optical component mounting holder for attaching an optical component to an optical housing having an opening provided near a mounting surface of the mounting portion in cooperation with an inner wall surface of the opening; an insertion portion elastically inserted into the inner surface of the opening on the optical component side; an extension portion extending from the insertion portion toward the optical component; and an extension portion extending from the extension portion to the outer surface of the optical component. The gist of the present invention is an optical component mounting holder comprising: a pressing portion that comes into contact with the insertion portion and presses the optical component against the mounting surface.

Means for Solving the Problems Please refer to FIGS. 1 to 3. optical housing 1
A mounting holder 7 for mounting and holding a reflecting mirror 2, which is an optical component, has an insertion portion 8, an extension portion 9, and a pressing portion 10. The insertion portion 8 is elastically inserted into the inner surface 4a of the opening 4 of the optical housing 1 on the reflecting mirror 2 side. The pressing part 10 provided via the extension part 9 is
A reflecting mirror 2 is attached to the mounting surface 5 side of the mounting section 3 of the optical housing 1 along with the insertion section 8 in contact with the outer surface of the reflecting mirror 2.
Press with an average amount of pressing force.

Function The reflecting mirror 2 is attached to the optical housing 1 via one attachment holder 7 with a single touch and with a constant pressing force.

Embodiment FIGS. 1 to 3 show preferred embodiments of the optical component mounting holder of this invention. 1 in the diagram
is, for example, an optical housing (an optical system holding structure) in a copying machine.

The optical housing 1 is made of metal, for example, and has a mounting portion 3 for a reflecting mirror 2 and a rectangular opening 4.

The mounting portion 3 is recessed from the surrounding optical housing end 1a by approximately the height H of the reflecting mirror 2, and the mounting surface 5
and a side wall portion 3a. This opening 4 is formed near the mounting surface 5 of the mounting portion 3, specifically at the bottom of the mounting surface 5. For example, two preferably semicircular protrusions 6 are formed on the mounting surface 5 at a predetermined interval.

On the other hand, numeral 7 in the figure is a mounting holder for mounting and holding the reflecting mirror 2, which is an optical component, on the optical housing 1.

The mounting holder 7 is made of elastic metal and includes an insertion section 8, an extension section 9, and a pressing section 1.
It has 0.

The insertion portion 8 has a U-shaped cross section, for example, and is a portion inserted into the opening 4 of the optical housing 1. That is, the insertion portion 8 is inserted into the inner surface 4a of the opening 4 on the reflecting mirror 2 side with elastic force.

This insertion portion 8 has a claw 11 formed on its upper surface portion 13 to prevent it from coming off. Further, on the lower surface part 14 of the insertion part 8, another claw 1 is provided to prevent the insertion part 8 from coming off.
2 is formed. These claws 11 and 12 are
In the state where the insertion portion 8 is inserted into the opening 4,
It is oriented in a direction in which it abuts against one side and the other side of the optical housing 1.

The extension part 9 is formed by being bent at a right angle from the lower surface part 14, and extends from the insertion part 8 in the direction of the reflecting mirror 2.

The pressing part 10 extends from the extension part 9 to the outer surface 2 of the reflecting mirror 2.
It extends so as to be in contact with the a side. This pressing part 10
is for pressing the reflecting mirror 2 together with the insertion portion 8 against the protrusion 6 of the mounting surface 5.

The pressing part 10 has protection parts 15 extending along the side part 2c of the reflecting mirror 2 on both sides. Each of these protective parts 1
5, a retaining claw 16 is formed so as to abut against the optical housing 1 when the pressing part 10 is at a predetermined position on the mounting part 3. Moreover, the pressing part 10
A hemispherical protrusion 17 is formed on the inner side of the hemispherical protrusion 17 corresponding to the protrusion 6 .

By the way, the pressing part 10 has a U-shaped cross section and is large enough to fit a part of the reflecting mirror 2 into it.

When attaching and holding the reflecting mirror 2 to the optical housing 1, insert the insertion part 8 into the opening 4, and with the reflecting surface 2b of the reflecting mirror 2 facing down, the protrusion 6 and the protrusion 1
It can be installed by sandwiching it between 7 and 7. The reflecting mirror 2 is held by the elastic force of the insertion portion 8 against the inner surface 4a of the opening 4.

At this time, the protrusion 17 is such that the reflecting mirror 2 is
It plays the role of preventing distortion due to the pressing force.

The amount of force for pressing the reflecting mirror 2 against the mounting surface 5 side is given by the elastic force (spring force) of the insertion portion 8 . The opening 4 is closed by the claw 16 and the three claws 11 and 12.
This prevents the insertion portion 8 from entering too much and coming out.

In addition, the elastic force of the insertion portion 8 absorbs the impact force from the outside. Interference between the side surface portion 2c and the side wall portion 3a of the reflecting mirror 2 is eliminated by the protection portion 15. That is, since the side wall portion 3a is formed into a sheared surface with a rough surface mainly due to press working, the side wall portion 2c of the reflecting mirror 2 is protected by the protection portion 15.

In this way, the reflecting mirror 2 can be attached to the optical housing 1 with one touch, even at the end of the optical housing 1, using only one attachment holder.

By the way, the mounting holder of this invention is not limited to the embodiments described above. The mounting holder may not be made of metal, but may also be made of other resilient materials such as plastic.

Effects of the invention As explained above, this invention eliminates the need for screws, has a small number of parts, allows one-touch mounting and holding of optical components, can be done with high precision with a constant amount of pressing force, has excellent impact resistance, and has excellent impact resistance. It is sufficient to have a wall of the optical housing on only one side of the optical housing, and there is no need to increase the thickness of the wall.

[Brief explanation of the drawing]

Fig. 1 is a cross-sectional view showing the reflector mounted and held by the mounting holder of this invention, Fig. 2 is an exploded perspective view showing the mounting holder and the optical housing of the reflector, and Fig. 3 is the mounting and holding of the reflector. Perspective view showing the state, No. 4
Figures 5 and 5 are diagrams showing the conventional mounting and holding structure, and Figure 6 shows the conventional mounting and holding structure.
The figure is a side view of a mounting holder used to hold the reflecting mirror of FIG. 5. DESCRIPTION OF SYMBOLS 1... Optical housing, 2... Reflector (optical component), 3... Mounting part, 3a... Side wall part, 4... Opening, 5... Mounting surface, 7... Mounting holder, 8...
Insertion part, 9... Extension part, 10... Pressing part, 11,
12...claw, 15...protective part, 16...claw.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) An optical housing having a mounting portion for an optical component and an opening provided near the mounting surface of the mounting portion, an optical housing that cooperates with the inner wall surface of the opening. An optical component mounting holder for mounting a component, the insertion portion being inserted into the opening with an elastic force against an inner surface of the opening on the optical component side, and the optical component being inserted from the insertion portion into the optical component. A mounting holder for an optical component, comprising: an extension portion extending in the direction; and a pressing portion contacting the outer surface of the optical component from the extension portion and pressing the optical component together with the insertion portion against the mounting surface. (2) The optical component mounting holder according to claim 1, wherein the pressing portion has a protective portion extending along the side of the optical component. (3) The mounting portion is located at a position recessed from the end of the surrounding optical housing through the side wall portion by approximately the height of the optical component, and the protection portion has an abutment piece that abuts against the side wall portion. A mounting holder for an optical component according to claim 2 of the utility model registration claim.