JPS61194415A - Optical device - Google Patents

Abstract

PURPOSE:To improve the assembly efficiency of an optical device by constituting a position setting member for optical parts, a position setting member for a holding member and support member themselves, and the holding member on the support member in one body, and providing the main device body with a position setting part and a holding part. CONSTITUTION:The position setting member 1A for optical parts and its holding member 1B which is constituted in such a shape that elasticity is obtained are constituted on the support member 1 in one body. Further, a hole part formed in a cover and the support member 1 are molded in one body and the arrow-shaped holding member 1C which varies in diameter at its tip part is engaged to fit the cover to the support member 1. Further, the position setting member 1D and holding member 1E are formed on the support member 1 in one body and the main device body 12 is provided with the position setting part 12D and holding part 12E. Consequently, the optical parts are easily held and the number of times of working and the number of parts are decreased, so that the assembly efficiency of the whole device is improved.

Description

[Detailed Description of the Invention] UL Koji The present invention relates to optical devices, and is particularly applicable to optical devices such as printers, facsimile machines, and copying machines in which optical components such as lenses and mirrors are provided on a support portion. It is about effective techniques. 'Prior art laser printer devices require an optical device equipped with optical components such as lenses and mirrors for adjusting the angle, diameter, optical path length, etc. of the laser beam in order to scan the photoreceptor with the laser beam. So, for example, IBM Te
chnical Disclosure Bull
eshi1nVo1.22 No, 8A January
1980. As described in pages 3085 to 3087, the optical component is provided on a support member formed by die-casting a metal such as aluminum.

This type of support member is die-cast and then subjected to secondary processing such as milling and screw processing.
Increase the precision of the mounting surface of the optical component and remove the optical component using screws, clamps, etc. (=t 1-1).

As a result, the number of processing operations and the number of parts increase, resulting in a problem that the efficiency of assembling the optical device of the laser printer device is extremely poor.

An object of the present invention is to provide a technology that can reduce the number of processing operations and the number of parts and improve assembly efficiency in an optical device in which optical components such as lenses and mirrors are provided on a support member. be.

Another object of the present invention is to provide an optical device in which a support member provided with optical components such as lenses and mirrors is provided in the main body of the device.
The object of the present invention is to provide a technology that can reduce the number of processing operations and the number of parts, and improve the assembly efficiency of assembling a support member into an apparatus main body.

The above and other objects and novel features of the present invention will become apparent from the description of this specification and the accompanying drawings.

In order to achieve the above-mentioned object, the present invention provides an optical device in which optical components such as lenses and mirrors are provided on a supporting member.
A position setting member for setting the position of the optical component and a holding member made of an elastic body for holding the optical component whose position is set by the position setting member are provided integrally with the support member. This is what I did.

In addition, in order to achieve the other object mentioned above, the present invention provides a support member having 4t provided with optical parts such as lenses and mirrors.
A first position setting member for setting the position of the optical component, and an elastic body for holding the optical component whose position is set by the first position setting member, in accordance with the optical device provided in the main body of the apparatus. a first holding member that is integrally provided with the support member, a second position setting member that sets the position of the support member, and a support member whose position is set by the second position setting member. and a second holding member made of an elastic body to hold the
The present invention is characterized in that a position setting part or a holding part is provided integrally with the support member, and the apparatus main body is provided with a position setting part or a holding part that fits with the second position setting member or second holding member.

Hereinafter, the present invention will be specifically explained based on an embodiment applied to a laser printer device.

In addition, in all the episodes, parts having the same function are given the same reference numerals, and the explanation of the reversing of the edges will be omitted.

Embodiment FIGS. 1 to 8 are diagrams for explaining an embodiment in which the present invention is applied to a laser printer device.
FIG. 2 is a sectional view taken along the line ■-■ in FIG. 1, and FIGS. A perspective view showing a component, a position setting member, and a holding member, and FIGS. 4, 6, and 8 are partial cross-sectional views showing an optical component, a position setting member, and a holding member.

In FIGS. 1 to 8, l is a supporting member, which includes a laser unit 2, a rotating polygon mirror 3, and a lens 4°5.6. It is configured to support optical components such as a mirror 7 and an optical fiber tube 8.

The laser units 1 to 2 are composed of semiconductor lasers and are mounted on the frame of the support member 1. Laser unit 2
A laser beam 2A is modulated and driven in response to a recording information signal from a computer or the like, and records information on the photoreceptor 9.
is configured to oscillate. Further, the laser unit 1-2 may be composed of a laser or the like.

The rotating polygon mirror 3 is configured to scan a laser beam 2A on the photoreceptor 9, and is driven by a drive device (motor) 3A.
is configured to control its rotation.

The lens 4 forms an image of the laser beam 2A on the rotating polygon mirror 3, and the concave and convex lenses 5 and 6 cause the laser beam 2A deflected by the rotating polygon mirror 3 to scan at a constant speed on the photoreceptor 9. It is configured as follows.

The mirror 7 is configured to reflect the laser beam 2A and make it incident on the optical fiber tube 8 before scanning the photoconductor 9, and is configured to obtain a synchronization signal that provides an optical signal to the photoconductor 9. ing.

Optical components such as the lens 6, mirror 7, and optical fiber tube 8 are mounted on the support member 1 as shown in FIGS. 3 to 8.
The position is set using a position setting member IA provided at a predetermined portion of the camera. An elastic holding member IB is provided at a predetermined portion of the supporting member 1, and the holding member 113 is configured to support the optical component whose position has been set by the position setting unit 1+J I A. There is. Although not shown, optical components other than the lens 6, mirror 7, and optical fiber tube 8 are also configured to be supported by the support member 1 by the positioning member IA and the holding member IB.

The supporting member 1, the positioning member IA, and the holding member 1B are precisely constructed by integral molding using a resin material such as resin for the reinforced polycarbony 1 containing glass fibers. The position setting member IA is configured to have a shape that does not deform so that the position of the optical component can be set with high precision. Further, the holding member IB is configured to have an elastic shape so as to be able to reliably hold the optical component.

That is, the positioning member IA and the holding member I are attached to the support member 1.
By integrating B and B, it is possible to support the optical component without using secondary processing after molding the support member 1 and without using mounting members such as screws or clamps. This results in
[Additional] Since it is possible to reduce the number of times and the number of parts,
The assembly efficiency of the optical device can be improved.

Furthermore, since assembly efficiency can be improved, the cost of the optical device can be reduced.

1O is a dustproof member, and is provided at a predetermined portion of the support member 1. The dust prevention member 10 is configured to prevent dirt, dust, etc. from entering into the interior surrounded by the support member l, and is detachably provided so that it can be blown off and replaced when it becomes dirty. There is. The dustproof member IO is made of transparent glass, resin, or the like.

Reference numeral 11 denotes a cover, which is provided at the - portion of the support member 1 so as to seal optical components and the like. The cover 11 includes a hole provided in the cover 11 and an arrowhead-shaped holding member 1 integrally molded with the support member 1 and having a variable tip diameter.
C and are configured to fit together and be attached to the support member l.

IT') is a needle-shaped position setting member, and is provided at a predetermined portion of the lower part of the support member 1. IE is a holding member configured in the shape of an arrowhead, and is configured at a predetermined lower portion of the support member 1 so that the diameter of the tip portion is variable. The position setting member ID and the holding member lE are integrally molded with the support member l.

The position setting member ID is a hole portion (position setting portion) 1 provided in a device main body 12 of an image forming device such as a laser printer device.
21"') to set the position of the support member l.

The holding member IE is an elastic body (
It is configured to fit into a hole (holding portion) 12E of the device main body 12 with a spring member (spring member) 13 interposed therebetween, and to hold the support member 1.

That is, the positioning member ID and the holding member l are attached to the support member 1.
E and the position setting section 1 are integrated into the device main body 12.
2r) and the holding portion 12E, the support member l can be supported on the device main body 12 without requiring secondary processing. This makes it possible to reduce the number of processing operations and the number of parts, thereby improving the efficiency of assembling the optical device.

Furthermore, since assembly efficiency can be improved, the cost of the optical device can be further reduced.

In addition, in this embodiment, the support member 1, position setting members IA, I
Although an example has been described in which D and holding members IB, IC, and IE are integrated, support member 1 and positioning member IA
, ID are integrated, and holding members IB, IC, and IE are integrated.
may be attached to the support member 1 so as to have elasticity.

As described above, according to the present invention, in an optical device in which optical components such as lenses and mirrors are provided on a support member, there is a position setting member for setting the position of the optical component, and a position setting member for setting the position of the optical component. By integrating the holding member made of an elastic body that holds the optical component to be set with the supporting member, secondary processing after molding the supporting member and installation of crushing clamps, etc. (= J member) are possible. Since the optical components can be supported without using them, the number of forces and the number of components can be reduced, and the efficiency of assembling the optical device can be improved.

Further, in an optical device in which a support member provided with optical components such as lenses and mirrors is provided in the main body of the device, a first position setting member for setting the position of the optical component and a position setting member configured to set the position of the optical component may be used. a first holding member made of an elastic body that holds an optical component to be set; a second position setting member that sets the position of the support member; and a second position setting member that sets the position of the support member; A second holding member made of an elastic body that holds the support member whose position is set by the setting member is provided integrally with the support member, and the second position setting member or the second holding member is provided in the device main body. By providing the position setting part or the holding part that fits with the holding member, the optical component can be supported on the supporting member without secondary processing after molding the supporting member or without using mounting members such as screws or clamps, and Since the supporting member can be supported by the device main body, the number of processing operations and the number of parts can be reduced, and the assembly efficiency of the optical device can be further improved.

In the following, the present invention has been specifically explained using examples, but it should be noted that the present invention is not limited to the above-mentioned examples, and can be modified in various ways without departing from the gist of the invention. Not even.

For example, in the embodiment described above, the present invention is applied to an optical device of a laser printer, but the present invention may also be applied to an optical device having optical components such as a facsimile machine or a copying machine.

[Brief explanation of the drawing]

1 to 8 are diagrams for explaining one embodiment of the present invention. FIG. 1 is a perspective view of a main part showing a schematic configuration of an optical device portion of a laser printer device, and FIG. 2 is a diagram for explaining an embodiment of the present invention. , a sectional view taken along line nn in FIG. FIG. 8 is a partial cross-sectional view showing the optical component, the position setting member, and the holding member. In the figure, l... Support member, IA, 10... Position setting member, in, tc, IE... Holding member, 2... Laser unit, 3... Rotating polygon mirror, 4, 5.6 ... Lens, 7. Mirror, 8. Optical fiber tube, 10.
...Dust-proof member, 11...Cover, 12...Device main body, 12D...Position setting section, 12E...Holding section.

Claims (2)

[Claims] (1) In an optical device in which optical components such as lenses and mirrors are provided on a support member, a position setting member sets the position of the optical component, and an elastic body holds the optical component whose position is set by the position setting member. 1. An optical device comprising: a holding member formed integrally with the supporting member; (2) In an optical device in which a supporting member provided with optical components such as lenses and mirrors is provided in the main body of the device, a first position setting member for setting the position of the optical component;
a first holding member made of an elastic body that holds an optical component whose position is set by the position setting member; and a second position setting member that is provided integrally with the support member and sets the position of the support member. and a second holding member made of an elastic body that holds the support member whose position is set by the second position setting member, are provided integrally with the support member, and the apparatus main body includes:
An optical device comprising a position setting section or a holding section that fits into the second position setting member or second holding member.