JPH0134378Y2 - - Google Patents

Description

[Detailed Description of the Invention] (A) Technical Field of the Invention The present invention relates to an object attachment mechanism, and in particular to an object attachment mechanism that allows for highly accurate positioning with little attachment error.

(B) Technical Background With the recent development of electrophotography technology, it has become possible to create large amounts of documents at high speed.

Lasers with excellent light speed convergence are widely used as exposure light sources in electrophotographic equipment, but if the optical axis of the laser beam is not set as specified, the quality of the electrophotography will be poor, so it is difficult to install the laser unit. There was a need for a mounting mechanism that would be easy to install and that would prevent the optical axis from shifting.

(C) Prior Art and Problems Figure 1 is a block diagram of a conventional laser unit mounting mechanism, in which a metal fitting 2 (first approximately L-shaped metal fitting) and a metal fitting 3 are mounted on a mounting base 1 by screws 2a and 3a. , 3b, and a metal fitting 5 (a second substantially L-shaped metal fitting) for mounting the laser head 4 and a metal fitting 6 are further fixed to the metal fittings 2 and 3 with screws 5a, 5b, and 6a.

FIG. 2a is a side view of the main part of FIG. 1, and shows the state before the screw 5a is tightened.

The bottom surface 7 of the laser head and the mounting surface 8 of the mounting base 1 are in a parallel state, but the screw 5a is not completely tightened, and the tightening seat surface 9 of the screw 5a and the mounting surface 1 of the metal fitting 5 are in a parallel state.
0 is in a non-parallel state, and when the screw 5a is further tightened, the tightening seat surface 9 and the mounting surface 1 are separated as shown in Fig. 2b.
0 is parallel, but the bottom surface 7 of the laser head and the mounting surface 8 are non-parallel, and the optical axis of the laser is tilted, making it impossible to irradiate the desired position. 11a, 11b
are a pair of spherical seats. In order to correct the inclination of the optical axis, it is necessary to change the installation state of the mount 4 and the metal fittings 5 and 6 again, which makes the work complicated.

(D) Purpose of the invention The present invention was devised in view of the above points, and an object thereof is to provide an object mounting mechanism that can position and mount an object with high accuracy with simple operation.

(E) Structure of the invention According to the invention, this purpose is to provide a base, a first approximately L-shaped fitting fixed to the base, and a second approximately L-shaped fitting fixed to the object to be attached. shaped metal fittings, the base and the object are fixed to one side piece of each of the first and second substantially L-shaped metal fittings, and each other side piece has a pair of spherical seats. The other side pieces are tightened and fixed by tightening screws arranged oppositely through each other and inserted through each other side piece and the pair of spherical seats, and the object is The object attachment mechanism is configured to be attached to a base, and the second substantially L-shaped fitting is disposed to face the pair of spherical seats via the other side piece, and the tightening screw is inserted through the object attachment mechanism. This is achieved by providing an object attachment mechanism characterized by having a pair of spherical seats inserted therein.

(F) Embodiments of the invention Examples of the invention will be described below in detail with reference to the drawings.

FIG. 3 is a configuration diagram of an embodiment of the present invention.
Parts equivalent to those in the figure are given the same reference numerals.

In FIG. 3, 12 and 13 are spherical seats, and as shown in FIG. 4a, a pair of spherical seats 11a and 11b are inserted between the metal fittings 5 and 2. A pair of spherical seats 12a, 12b sandwiched in between.
is provided.

Although not shown, two pairs of spherical seats are similarly provided on the screw 5b side to sandwich the metal fitting 5.

As shown in FIG. 4a, the screw 5a is not completely tightened and the tightening seat surface 9 of the screw 5a and the mounting surface 10 are in a non-parallel state, but the laser head 4
are arranged in a defined manner, so that the optical axis of the radiation can illuminate the desired position.

As shown in FIG. 4b, the spherical seat 12b has a shape in which a part of the conical surface is cut out, and is configured to be slidable on both surfaces. Even if the screw 5a is completely tightened, the tightening seat surface 9 and the mounting surface 10 of the screw 5a are fixed in a non-parallel state as shown in FIG. does not tilt during tightening work,
No optical axis deviation occurs in the laser optical axis 14 either.

In the embodiment described above, the pair of spherical seats 12a, 12
b and 13 were used, but a washer 14 shown in FIG. 5 may be used instead. This washer has a flat ring shape and has a pair of convex bent portions 15a, 1
5b and a pair of concave bent portions 16a, 16b, even if the tightening seat surface 9 and the mounting surface 10 of the screw 5a are in a non-parallel state, when the screw 5a is tightened strongly, the washer 14 Therefore, the tilting of the laser head 4 is prevented, so that the laser optical axis does not fluctuate.

(G) Effect of the invention As explained above, the light source mounting mechanism according to the invention consists of two sets of spherical seats facing each other, sandwiching the metal fittings to which the object to be mounted is fixed, and the two sets of spherical seats facing each other. This compensates for the displacement of the attachment object due to the screw tightening operation, so that the attachment object can be accurately attached at a desired position and in a prescribed orientation without any displacement during the attachment operation.

[Brief explanation of the drawing]

Figure 1 is a diagram of the conventional object attachment mechanism, Figure 2 a, b
3 is a configuration diagram of an embodiment of the present invention, FIG. 4a is a diagram showing an installed state, FIG. 4b is a side sectional view of the spherical seat, and FIG. 4c is a diagram showing an installed state , FIG. 5 is an overview of the washer. 1... Base, 2, 3... Metal fittings, 2a, 3a, 3
b...Screw, 4...Laser head, 5, 6...Metal fittings, 5a, 5b, 6a...Screw, 11a, 11
b, 12a, 12b...spherical seat, 14... washer.

Claims (1)

[Scope of utility model registration request] A base, a first substantially L-shaped metal fitting fixed to the base, and a second substantially L-shaped metal fitting fixed to an object to be attached, the first and second substantially L-shaped metal fittings being fixed to the base; The base and the object are fixed to each side piece of the L-shaped fitting, and the other side pieces are arranged to face each other with a pair of spherical seats interposed therebetween, and In the object mounting mechanism, the object is mounted on the base by tightening and fixing each of the other side pieces with a tightening screw inserted through the second side piece and the pair of spherical seats. The substantially L-shaped metal fitting has a pair of spherical seats arranged opposite to the pair of spherical seats through the other side piece, and into which the tightening screw is inserted. Characteristic object attachment mechanism.