JPS6010142Y2 - fax machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION This invention relates to a facsimile machine equipped with an optical unit that performs one scan using a plurality of lenses and solid-state scanning elements.

A facsimile transmitter employs a solid-state scanning element that sequentially extracts output signals from a large number of photoelectric conversion elements arranged in a straight line at minute intervals through electronic scanning.

Currently, the number of photoelectric conversion elements included in one such solid-state scanning element is approximately 500 to 100 for various reasons.

Therefore, depending on the size or linear density of the original to be transmitted, a plurality of solid-state scanning elements may be arranged in parallel to obtain the required number of photoelectric conversion elements.

In this way, conventional devices using multiple solid-state scanning elements,
It is constructed as shown in FIGS. 1 to 3.

That is, lenses 11, 12, and 13 are arranged side by side on one side of the mounting member 10, and lenses 11, 12, and 13 are arranged on the other side of the mounting member 10, respectively.
solid state scanning elements 14, 15, 1 corresponding to 12, 13, respectively;
6 are arranged in parallel via the substrates 17, 18, 19 and the stay 20 to form an optical unit 21 as a whole. It is fixed by

As described above, when a plurality of solid state scanning elements 14, 15.16 are used, a straight line 26 drawn on one sheet of original 25 is divided by lenses 11, 12, 13 and solid state scanning elements 14, 15, 16 are used. Photoelectric conversion section 27 of scanning element 14, 15, 16,
28.29, the photoelectric conversion unit 2
The mutual positional relationship between 7, 28 and 29 must be maintained accurately at all times, and if the mutual positional relationship deviates, the received image of the straight line 26 drawn on the original 25 will become step-like as shown in FIG. 4B. This results in shifted straight lines 30, 31, and 32.

By the way, if the flatness of the image on which the facsimile machine is installed is poor, the casing 22 is not a completely rigid body, and therefore twists and deforms as shown by the dashed line in FIG. 3.

In the conventional device, as described above, the side plate 23 of the housing 22
, 24 are fixed to both ends of the mounting member 10 of the optical unit 21 with screws or the like, the mounting member 10 also undergoes torsional deformation as the housing 22 is torsionally deformed, and as a result,
Photoelectric conversion units 27, 28 of solid-state scanning elements 14, 15, 16
．． 29 is destroyed, and as mentioned above, the received image of the straight line 26 drawn on the original 25 as shown in FIG. 4A becomes straight lines 30, 31, and 32 that are shifted in a step-like manner as shown in FIG. 4B. There are drawbacks.

This invention was made with the aim of eliminating the above-mentioned conventional drawbacks, and provides a facsimile device in which an optical unit is attached to a housing so that torsional deformation of the housing is not transmitted to the optical unit. .

The embodiment of this invention shown in FIGS. 5 and 6 will be described below.

In the figure, reference numeral 21 denotes an optical unit, in which lenses 11.degree. 14, 15, and 16 are arranged in parallel.

In the embodiment shown in FIG. 5, one side (the left side in the figure) of the mounting member 10, which is a component of the optical unit 21, is firmly fixed to the side plate 23 of the housing with screws 33.

A screw shaft 34 is implanted on the other side (right side in the figure) of the mounting member 10.

On the other hand, a through hole 36 larger than the diameter of the shaft portion 35 of the screw shaft 34 is bored in the side plate 24 .

The other side of the mounting member 10 is movably supported by the side plate 24 via the screw shaft 34.

Therefore, as shown in FIG. 3, even if the housing 22 is torsionally deformed due to unevenness on its installation surface, the side plate 24 and the other side of the mounting member 10 are not fixed, so the mounting member 10
The mounting member 10 does not undergo torsional deformation since the mounting member 10 only shifts relative to the side plate 24.

FIG. 6 shows another embodiment of this invention, in which one side of the mounting member 10 is connected to a side plate 2 by screws, similar to the embodiment shown in FIG.
On the other side of the mounting member 10, the elastic support member 37 is formed by providing screws 39 and 40 at the ends of an elastic body 38, such as rubber, respectively.
is fixed to the mounting member 10 side, and the screw 40 is fixed to the side plate 24 side.

Note that the spring constant of the elastic body 38 is preferably sufficiently smaller than the rigidity of the mounting member 10.

According to this embodiment, the side plate 24 due to torsional deformation of the housing
The displacement only deforms the elastic body 38 and does not deform the mounting member 10.

As is clear from the above description, this invention has an extremely simple structure in which one side of the optical unit is fixedly supported by the housing, and the other side of the optical unit is movably supported with respect to the housing. This has the excellent effect of preventing torsional deformation of the body from being transmitted to the optical unit and always maintaining the mutual positional relationship of the plurality of solid-state scanning elements.

[Brief explanation of drawings]

Figures 1 to 3 schematically show the conventional device, with Figure 1 being a perspective view of its optical unit, Figure 2 being a side view taken in the direction of arrow A in Figure 1, and Figure 3 being the entire device. Schematic perspective view of 4th
Figure A is a diagram showing an example of a transmitted original, Figure 4B is a diagram showing an example of a received image, Figure 5 is a front view showing a main part of one embodiment of this invention, and Figure 6 is another embodiment. FIG. 10... Mounting member, 11-13... Lens, 14-16... Solid-state scanning element, 21...
. . . Optical unit, 22 . . . Housing, 23.
24... Side plate, 34... Screw shaft, 36
...Through hole, 37...Elastic support member.

Claims (1)

[Scope of utility model registration request] An optical unit comprising a plurality of pairs of lenses and solid-state scanning elements arranged side by side on a mounting member, one side of which is fixedly supported by a casing of a facsimile machine, and the other side of which is movable to the casing. A facsimile device characterized in that it is supported by.