JPS63176060A - Function member supporting device for facsimile equipment - Google Patents

Abstract

PURPOSE:To improve the positioning accuracy by fixing a mount bracket to both ends of a function member, supporting the mount bracket to an upper casing movably in upper/lower and forward/backward directions, forming a position regulation part engaging with a support shaft of a roller to the mount bracket and providing a means energizing the function member toward the roller. CONSTITUTION:Since the function member 10 is supported movably to the upper casing 2, the position regulation section 15 of the mount bracket 11 is engaged with the support shaft 7 of the roller 6 in closing the upper casing 2, then the parallelism in the forward/backward directions is ensured for the function member 10 and the roller 6. Then the function member 10 is energized toward the roller 6 to ensure the parallelism in the horizontal direction and an operating part of the function member 10 is pushed uniformly to the roller. Thus, a facsimile equipment with high reading accuracy and printing accuracy by means of the function member 10 is obtained.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a support device for functional members in a 7-axis system, such as an image sensor that reads a document during transmission and a thermal head that prints on recording paper during reception.

Conventional technology Conventionally, rollers for guiding originals and recording paper have been disposed in the lower casing, and functional components such as image sensors and thermal heads have been disposed in the upper casing. A facsimile machine in which an operating portion is pressed against a roller is known. In addition, as a support device for, for example, an image sensor in this upper Una 7 Acun mm, as shown in FIGS. 4 and 5, support shafts 25 extending from both ends of the image sensor 24 are disposed in the upper casing 22. It has generally been supported by a bearing part 26, and the corresponding roller 23 is also supported by a bearing part 26 disposed in the lower casing 21.

Problems to be Solved by the Invention Incidentally, the accuracy of document reading h1 degrees and printing on recording paper in a facsimile machine depends on whether the original or recording paper is pressed accurately and uniformly against the action parts of these functional members. Therefore, it is extremely important to improve the positioning accuracy of the functional member and the roller and to ensure the parallelism of the working part of the functional member and the axis of the roller in the longitudinal direction and the vertical direction. However, as described above, since the functional members are disposed in the upper casing and the rollers are disposed in the lower casing, it is extremely difficult to ensure positioning accuracy.

In view of the above-mentioned conventional problems, an object of the present invention is to provide a support device for a functional member that can improve the positioning accuracy of the upper casing and the lower casing while disposing the functional member and the roller respectively in the upper casing and the lower casing. do.

Means for Solving the Problems In order to achieve the above object, the present invention provides an action section of a functional member disposed in an upper casing with respect to a roller that guides a document or recording paper disposed in a lower casing. In a facsimile functional member support device that is pressed against the functional member, mounting brackets are fixed to both ends of the functional member, the mounting brackets are supported on the upper casing so as to be movable up and down and back and forth, and a support shaft of the roller is attached to the mounting bracket. The present invention is characterized in that an engaging means is formed, and a biasing means is provided for biasing the functional member toward the roller.

Operation Since the present invention has the above configuration, the functional member is supported in a movable state relative to the upper casing, so when the upper casing is closed, the position regulating part of the mounting bracket engages with the support shaft of the roller. , parallelism in the front-rear direction between the functional member and the roller is ensured, and parallelism in the horizontal direction is also ensured by urging the functional member toward the roller, and 8! The active part of the functional member is pressed uniformly against the roller. Therefore, it is possible to obtain 7 axis + 7 with high reading accuracy and printing accuracy using the functional member.

Embodiments Hereinafter, embodiments of the present invention will be described with reference to FIGS. 1 to 3.

In Fig. 2 and MS Fig. 3, which schematically show the structure of the document insertion side of a facsimile, 1 is a lower casing, and 2 is an upper casing. A paper feed roller 4, an auxiliary roller 5, and an image sensor roller 6 are provided. Support shafts 7 are protruded from both ends of the image sensor roller 6 concentrically with the axis of the image sensor roller 6, and these ends are rotatably supported by a lees receiver 8. Reference numeral 9 denotes a document insertion id that is installed on the paper feeding id 3 so as to be movable in and out.

An image sensor 10 is disposed in the upper casing 2 in correspondence with the image sensor roller 6.

As shown in FIG. 1, mounting brackets 11 are fixed to both end surfaces of the image sensor 10 with fixtures 12. In the upper part of the mounting bracket 11, there are provided seven long support holes 13 in the vertical direction at positions offset in the front and back direction from the COD, which is the operating part of the image sensor 10, and an open passage 14 extending laterally from the lower end thereof. is formed. Further, in the lower part of the mounting bracket 11, there is a position regulating groove 15 which extends upward from the lower end and just engages with the support shaft 7 of the image sensor roller 6 so that the center line passes through the center position of the CCD. is formed. On the other hand, on the inside of both side walls of the upper casing 2, support bins 16 that pass through the open passage 14 and engage in the support elongated holes 13 are protruded. The outer diameter of this support pin 16 is the support pin (L).
The width of support bin 1 is set slightly smaller than the width of i2.
6 is configured to engage so as to be relatively movable in the vertical direction along the longitudinal direction of the support elongated hole 13 and also slightly in the front and rear directions. Furthermore, a pair of springs 17 are interposed between both sides of the upper surface of the image sensor 10 and the earthen wall of the upper casing 2 to urge the action section of the image sensor 10 downward.

In the above configuration, when the upper casing 2 is pinched with the image sensor 10 attached, the image sensor 10
is movably supported at both ends by support pins 16 via the mounting bracket 11 in the downward and front-back directions, so that the position regulating groove 15 of the mounting bracket 11 aligns with the support shaft 7 of the image sensor roller 6. By engaging with the image sensor roller 6, the action portion of the image sensor 10 is precisely regulated to be flat in the front-rear direction with respect to the fineness of the image sensor roller 6. Furthermore, the image sensor 10 is supported by a support pin 16 through the elongated hole 13 at a position eccentric in the front-rear direction from its operating portion, and is urged downward by a spring 17. As a result, the action portion of the image sensor 10 is placed along the outer peripheral surface of the image sensor roller 6. Therefore, the action part of the image sensor 10 is accurately pressed against the outer circumferential surface of the image sensor roller 6, and the position where the original is pressed against the action part of the image sensor 10 may shift in the front-back direction, or if the original is pressed too hard. This eliminates the occurrence of gaps between the areas where the image is drawn and the areas where gaps are formed, and the reading characteristics of the document are improved.

The present invention is not limited to the above embodiments.

For example, in the above embodiment, only the support device for an image sensor that reads and transmits a document has been described, but by applying the present invention to a support structure for a thermal head for reception, printing accuracy can be similarly improved. Also,
The shape of the mounting bracket, the specific structure for supporting the mounting bracket in a movable state, etc. can be modified and implemented as desired. Further, the structure of the position regulating part that engages with the support shaft of the roller to regulate the position can also be changed to other than the groove shape.

Effects of the Invention According to the 7T comb W1 function member support device of the present invention,
As described above, the functional member is supported in a movable state with respect to the upper casing, so when the upper casing is closed, the position regulating part of the mounting bracket engages with the support shaft of the roller, so that the functional member and the roller are Parallelism in the front-rear direction is ensured, and since the functional member is biased toward the roller, parallelism in the horizontal direction is also ensured, and the working portion of the functional member is evenly pressed against the roller.

Therefore, the parallelism between the functional member and the roller is ensured, and it is possible to obtain the 7 axis with high reading accuracy and printing accuracy.

[Brief explanation of the drawing]

1 to 3 show an embodiment of the present invention, in which FIG. 1 is a perspective view of the main part, FIG. 2 is a longitudinal cross-sectional side view of the image sensor portion of the facsimile, and FIG. 3 is the document insertion side of the facsimile. 4 and 5 show a conventional example, FIG. 4 is a longitudinal sectional side view, and FIG. 15 is a longitudinal sectional front view. 1...Lower casing 2..."Two-part casing 6...
...Image sensor roller 7...Support shaft 10...Image sensor (functional member) 1
1...Mounting bracket 15...
...Position regulation groove (position regulation part) 17...
- Spring (biasing means).

Claims (1)

[Claims] A facsimile functional member support device that presses an operating part of a functional member disposed in an upper casing against a roller that guides a document or recording paper disposed in a lower casing, the device comprising: a mounting bracket is fixed to the upper casing, the mounting bracket is supported to be movable up and down and back and forth, the mounting bracket is formed with a position regulating part that engages with the support shaft of the roller, and the functional member is fixed to the roller. 1. A functional member support device for a facsimile machine, characterized in that a device for supporting a functional member of a facsimile is provided with a biasing means for biasing the device toward the target.