JPH0763978A - Reflector attaching means - Google Patents

Abstract

PURPOSE:To reduce the cost by decreasing the number of parts for attaching a mirror in a scanner device. CONSTITUTION:A 1st holding means 8 supporting one end of the mirror 10 and a 2nd holding means 9 supporting the other end of the mirror 10 are erected in a device main body. The means 8 is provided with a mirror attaching reference surface 8a and a tapered surface 8b, and the means 9 is provided with a mirror attaching reference surface 9b and a through-hole 9a in which the mirror 10 is inserted. The mirror 10 is inserted in the through hole 9a so that one end is engaged with the tapered surface 8b and its reflecting surface is made to abut on the reference surfaces 8a and 9b. Furthermore, by fitting a P-shaped clip 11 between the back surface of the mirror 10 and an opposed surface 9c to the reference surface 9b and pressing the back surface and the end surface of the mirror 10, the reflecting surface is brought into press-contact with the reference surfaces 8a and 9b to fix the mirror 10.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is applied to a scanner device for reading an original using an image reading element such as a CCD, and more particularly, it is attached to a reflector for holding a mirror for guiding reflected light from the original to the image reading element. Regarding means.

[0002]

2. Description of the Related Art In a scanner device, a light source irradiates a document surface with light, and the reflected light is focused by a lens to form a CCD.
Image information is read by being guided to an image reading element such as.
Therefore, as shown in FIG. 7, the CCD 3 must be installed at a position where the reflected light from the document 1 is imaged by the lens 2, and a space for the focal length is required.

Therefore, conventionally, as shown in FIG. 8, in order to miniaturize the device, a mirror 4 is used to reflect light,
Changing the optical path is usually done.

[0004]

Conventionally, as shown in FIG. 9, the mirror is attached to the scanner body by supporting the end of the mirror 4 with the mirror attaching part 6 on the mirror attaching part 5 and using the screw 7 to attach the mirror. This is done by fixing the mounting component 6.

However, this method requires two mirror-mounting parts and two screws, and is extremely difficult to assemble, resulting in an increase in the cost of parts and assembly work.

The present invention solves such a problem, and by reducing the number of parts for attaching the mirror, the parts cost and the labor cost are reduced, and the reflector mounting means which realizes the improvement of the assembling property is provided. The purpose is to do.

[0007]

In order to achieve the above object, in the present invention, a reflector attaching means for holding a reflector that guides reflected light from a document to an image reading element,
A first holding means having a first mounting reference surface with which one end reflecting surface of the reflector abuts, and a tapered surface with which one end of the reflecting member engages and which faces the first mounting reference surface; The second mounting reference surface with which the reflecting surface at the other end of the reflector abuts, and this second mounting reference surface.
The second holding means having a mounting boss protruding from the surface facing the mounting reference surface, and the mounting boss fitted between the back surface of the reflector and the surface facing the second mounting reference surface. And a pressing means having means for pressing the other end of the reflector in the vertical and horizontal directions.

Further, the pressing means has a vertical elastic portion whose one end side is bent in a U shape, a horizontal elastic portion whose other end is bent in an L shape and at an acute angle, and a central portion. And a hole that engages with the mounting boss, and is a leaf spring material.

Further, the pressing means has an L-shaped bent portion formed in the central portion, a U-shaped one end side and a vertical elastic portion formed by bending the outside of the L-shaped portion, and the other end side. A J-shaped and horizontal elastic portion formed by bending the L-shaped outside.
It is characterized by being a leaf spring material which is provided in the vicinity of the bent portion and on the plane of the upper and lower elastic portions and further has a hole portion which engages with the mounting boss.

[0010]

According to the above construction, one end of the reflector is engaged with the first holding means, and the pressing means is attached to the second holding means at the other end side, whereby the reflector is fixed. Further, one end of the reflector is moved upward from the guide of the tapered surface by the horizontal pressing of the pressing means, and the reflecting surface of the one end is brought into close contact with the first mounting reference surface. Further, the reflecting surface at the other end is brought into close contact with the second mounting reference surface by the vertical pressing of the pressing means. Therefore, the first and second reflectors are formed by one member.
The second holding means can be positioned and fixed at a predetermined position.

[0011]

Embodiments of the present invention will now be described in detail with reference to the drawings.

FIG. 1 is a sectional view showing a state in which a reflector is installed in the embodiment of the present invention, and FIG. 2 is an exploded perspective view of FIG. In FIGS. 1 and 2, 8 is a first holding means standing upright on the apparatus main body, 9 is a second holding means, 10 is a mirror as a reflector, and 11 is a clip as a pressing means.

Further, 8a is a mirror mounting reference surface which is a first mounting reference surface formed on the first holding means 8, 8b is a taper surface which is a surface facing the mirror mounting reference surface 8a, and 8c is an insertion opening of the mirror 10. Show. The mirror attachment reference surface 8a and the taper surface 8b have the insertion opening 8c of the first holding means 8 as an opening.
Further, it is the inner surface of the box-shaped mirror holding portion 8d extending in the insertion direction of the mirror 10, the insertion opening 8c is larger than the end surface of the mirror 10, and the bottom surface 8e is smaller than the end surface of the mirror 10.

Reference numeral 9a denotes a rectangular through hole provided in the second holding means 9, the mirror 10 is inserted into the through hole 9a, and the tip of the mirror 10 has an insertion opening 8c for the first holding means 8. Inserted in. Reference numeral 9b denotes an inner surface of the through hole 9a and a mirror mounting reference surface which is a second mounting reference surface, and this mirror mounting reference surface 9b is on the same plane as the mirror mounting reference surface 8a. 9c is a mirror mounting reference surface 9b
And 9d, a boss projecting from the facing surface 9c.

FIG. 3 is a perspective view of the clip 11, and FIG.
FIG. 4 is a side view of FIG. 3. The clip 11 is configured by bending a leaf spring material, 11a is a vertical elastic portion provided by bending a U-shape on one end side, and 11b is a U-shaped member on the other end side. A horizontal elastic portion 11c formed by bending an L-shape on the same side as the bending direction, 11c is a center in which the U-shape is bent on one end and the L-shape is bent on the other end. A plane part is shown.

The upper and lower elastic portions 11a are slightly opened with respect to the central plane portion 11c, and the horizontal elastic portions 11b are slightly acute with respect to the central plane portion 11c.

Reference numeral 11d denotes a hole formed in the vicinity of the L-shaped bent portion and on the plane of the central plane portion 11c. Note that FIG.
As shown in FIG. 5, the clip 11 has a P-shaped appearance.

With respect to each of the means for attaching the reflector thus constructed, first, one end of the mirror 10 is passed through the through hole 9a of the second holding means 9, and the mirror is inserted from the insertion port 8c of the first holding means 8. Insert into the holding portion 8d. At this time, one end of the mirror 10 is moved upward by the guide of the tapered surface 8b, and the reflection surface at one end contacts the mirror attachment reference surface 8a.

Next, on the side of the second holding means, the mirror
A clip 11 is fitted between the back surface of 10 and the facing surface 9c, and the hole 1
Engage 1d and boss 9d. At this time, the vertical elastic portion 11a
Contacts the back surface of the mirror 10 and presses it in the direction A in the figure,
The state where the other end reflection surface of the mirror 10 is in contact with the mirror attachment reference surface 9b is maintained. The horizontal elastic portion 11b is the mirror 10
Since it abuts against the other end of the mirror 10 and presses it in the direction of B in the figure, the state in which the one end reflecting surface of the mirror 10 abuts the mirror mounting reference surface 8a is maintained.

FIG. 5 is a perspective view showing another structure of the pressing means according to the embodiment of the present invention, and FIG. 6 is a side view of FIG.

Reference numeral 12 denotes a clip which is a pressing means. Like the clip 11 (see FIG. 3), the clip 12 is also formed by bending a leaf spring material. 12a is an L-shaped bent portion provided in the central portion, and 12b is an L-shaped end portion. A vertical elastic portion provided by bending a U-shape outward of the mold, a horizontal elastic portion 12c provided by bending a J-shape outward of the L-shape at the other end side, Reference numeral 12d indicates a central plane portion having the U-shaped bending process at one end and a bending portion 12a at the other end.

The upper and lower elastic portions 12b are slightly opened with respect to the central flat portion 12d, and the horizontal elastic portions 12c are slightly acute with respect to the central flat portion 12d. In addition, 12e is a bent portion 12a
A hole formed in the vicinity of and in the central plane portion 12d is shown.

The clip 11 also has the clip 11
Similar to (FIG. 3), on the second holding means 9 side, the mirror 10
The mirror 10 is fixed by being fitted between the rear surface of the mirror and the facing surface 9c and engaging the hole 12e with the boss 9d.

According to the clip 12 thus constructed,
As compared with the clip 11 (see FIG. 3), the horizontal movement width of the horizontal elastic portion becomes larger. Therefore, the mirror 10
Even if there is some variation in the length of the, it can be pressed in the horizontal direction.

[0025]

According to the present invention constructed as described above, the following effects can be obtained.

According to the structure of claim 1, since it can be attached with one touch by one pressing means, the cost of parts and the cost of assembling work can be reduced, and the assembling property can be improved.

According to the second aspect of the invention, the pressing means is formed by bending the spring material, so that the material cost and the processing cost can be kept low.

According to the structure of claim 3, in addition to the effect of the structure of claim 2, since the moving width of the horizontal elastic portion can be increased, even if the length of the reflector to be installed varies, It is possible to press the body horizontally.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing a state in which a mirror is fixed in an embodiment of the present invention.

FIG. 2 is an exploded perspective view of FIG.

FIG. 3 is a perspective view showing a clip that is a pressing unit according to an embodiment of the present invention.

FIG. 4 is a side view of FIG.

FIG. 5 is a perspective view showing a clip which is another configuration of the pressing means according to the embodiment of the present invention.

FIG. 6 is a side view of FIG.

FIG. 7 is an explanatory diagram illustrating a conventional example of a scanner device.

FIG. 8 is an explanatory diagram illustrating a conventional example of a scanner device.

FIG. 9 is a cross-sectional view showing a conventional mirror mounting structure.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Original document, 3 ... CCD, 4 ... Mirror, 8 ... 1st holding means, 8a, 9b ... Mirror mounting reference surface, 8b ... Tapered surface, 9 ... 2nd holding means, 9d ... Boss, 10 ... Mirror, 11, 12 ... clip, 11a, 12b ... upper and lower elastic parts,
11b, 12c ... horizontal elastic part, 11d ... hole, 12a ... bent part.

Claims (3)

[Claims] 1. A reflector mounting means for holding a reflector for guiding reflected light from a document to an image reading element, wherein one end of the reflector and a first mounting reference surface with which one end reflective surface of the reflector abuts. First holding means having a tapered surface that engages with and faces the first mounting reference surface, a second mounting reference surface with which the other end reflecting surface of the reflector abuts, and this second mounting reference surface Second holding means having a mounting boss projecting from the opposing surface of the reflector and the rear surface of the reflector and a surface facing the second mounting reference surface, and engages with the mounting boss. And a pressing means provided with a means for pressing the other end of the reflector in the vertical and horizontal directions. 2. The pressing means includes a vertical elastic portion having one end bent in a U shape, a horizontal elastic portion having an L shape bent at the other end in an acute angle, and a central portion. The reflector attaching means according to claim 1, wherein the reflector attaching member is a leaf spring material provided with a hole portion provided on the base plate and engaging with the attaching boss. 3. The pressing means comprises an L-shaped bent portion formed in the central portion, a U-shaped one end side and a vertical elastic portion formed by bending the outside of the L-shape, and the other end side. A J-shaped horizontal elastic portion formed by bending the outside of the L-shape, and a hole portion provided in the plane near the bending portion and on the upper and lower elastic portions and engaging with a mounting boss. The reflector attaching means according to claim 1, wherein the reflector attaching means is a leaf spring material.