JP2000010211A - Original positioning member - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an original positioning member constituted so that an original is easily positioned and the labor, time and cost required for manufacturing and maintaining an image forming device are reduced. SOLUTION: The original positioning member 15 is obtained by integrally molding a long-length part 17 extended in the longitudinal direction of an original platen 13 and a short-length part 18 extended in the lateral direction from synthetic resin such as ABS resin. The long-length part 17 and the short-length part 18 are precisely orthogonally crossed through a right angle part 19 and the right angle part 19 is engaged with the corner part 21 of the original 20 when the original 20 is arranged at a prescribed position. It is preferable that the length of the short-length part 18 is >=5 mm and not longer than the length of a contact glass 16 in the lateral direction. Besides, a second display part 27 displaying the size, the direction and the like of the original 20 is arranged on a display tape 26 and a first display part 25 is arranged on the long-length part 17.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a document positioning member for positioning a document on a document table of an image forming apparatus such as a copying machine, a printer, and a facsimile.

[0002]

2. Description of the Related Art Conventionally, a document positioning member 3 of this type has been used.
For example, one shown in FIGS. 5A and 5B is known. The document positioning member 31 covers the entire left edge of the contact glass 33 disposed on the document table 32 of the image forming apparatus.
4 and two members, a back side edge document positioning member 35 which covers the entire back side edge separately. In other words, the left edge document positioning member 34 is a ruler having a substantially L-shaped cross section formed of a synthetic resin, and is in close contact with the left side surface of the contact glass 33 and a part of the upper surface of the contact glass 33 adjacent thereto. Similarly, the back edge document positioning member 35 is in close contact with the back end surface of the contact glass 33 and a part of the upper surface of the contact glass 33 adjacent thereto.

On the upper surface of the document positioning member 31, there is provided a display section 37 for displaying the size of the document 36, which is used as a guide for determining a position corresponding to the size of the document 36. The document 36 is arranged at an arbitrary position on the contact glass 33 while orienting the position indicated on the display section 37 as a guide, and is normally slid leftward with a finger. When the entire side edge of the document 36 contacts the left edge document positioning member 34, the document 3
6 is slid in parallel in the depth direction while maintaining the state as it is, and is arranged on a corner portion 38 where two document positioning members 34 and 35 intersect on the contact glass 33.

[0004] Further, the original document 36 placed at an arbitrary position on the contact glass 33 may be slid to the left first and then to the left. In this case, too, the document 36 is slid to the left. The document 36 is positioned in the same manner as when the document 36 is slid backward.

[0005]

However, in the conventional document positioning member 31, when the image forming apparatus is manufactured,
It is necessary to attach the two document positioning members 34 and 35 at the corners 38 of the document positioning member 31 while adjusting them so as to be orthogonal to each other, which requires a jig or the like and requires much labor and time. I was Also, after performing maintenance such as repair, inspection, and cleaning of the image forming apparatus, installation work was performed through a similar process, which required much labor and time, and increased manufacturing and maintenance costs. Was invited.

The present invention has been made by paying attention to the problems existing in the prior art as described above. The purpose is to provide a document positioning member that can easily position a document, reduce the time and effort required for manufacturing and maintaining the image forming apparatus, and reduce the cost of manufacturing and maintenance. To provide.

[0007]

In order to achieve the above object, the document positioning member according to the present invention is provided on a document table of an image forming apparatus, and is integrally formed to engage with a corner of the document. It has a right angle portion.

According to a second aspect of the present invention, in the document positioning member according to the first aspect, the right-angled portion includes a long portion extending in a vertical direction of the document table, and a short portion extending in a horizontal direction of the document table. It is more formed.

According to a third aspect of the present invention, there is provided the document positioning member according to the second aspect of the present invention, wherein a display unit for displaying the size of the original is provided in a lateral direction of the original table.

[0010]

Embodiments of the present invention will be described below in detail. As shown in FIG. 1, a copier 11 as an image forming apparatus includes a main body 1 having a rectangular box shape.
2, a document table 13 provided on the upper surface of the main body 12, and a main body 1
And a document cover 14 supported at the rear edge of the document 2 so as to be openable and closable. The first document positioning member 15 is used for the document table 1.
3 and disposed on the left side surface of the contact glass 16.

The document positioning member 15 is formed of a synthetic resin such as an ABS resin, and as shown in FIGS. 2A and 2B, a substantially flat long portion 17 extending in the vertical direction of the document table 13. And an elongated portion 17 extending in the lateral direction of the platen 13.
The long portion 17 and the short portion 18 are integrally formed via a right angle portion 19. The document positioning member 15 is provided on the contact glass 1.
6 is arranged in close contact with the entire left side surface and a part of the rear end surface, and engages with the corner portion 21 of the document 20 arranged at a predetermined position.

The document positioning member 15 is formed by passing a fixing screw 23 through two locking holes 22 formed on both ends and screwing it into a female screw hole (not shown) formed on the document table 13. It is fixed to the table 13. The thickness of the document positioning member 15 in the height direction is
The thickness is set to be larger than the sum of the thickness of the contact glass 16 and the thickness of the document 20. The inclined surface 24 is formed by cutting the inner edges of the long portion 17 and the short portion 18 at an inclination angle of approximately 45 degrees.

The horizontal length of the short portion 18 of the document positioning member 15 is preferably 5 mm or more and the horizontal length of the contact glass 16 or less. This short section 18
Is less than 5 mm, the right-angled portion 19 of the document positioning member 15 and the corner portion 21 of the document 20 are engaged, and it is difficult to arrange the document 20 at a predetermined position.

The first display unit 25 includes the document positioning member 1
5 is provided on the long portion 17, and displays sizes such as A4 and B5 according to the size of the document 20. Further, the thin display tape 26 is attached to the short portion 1 of the document positioning member 15.
8 is attached to the document table 13 on an extension line of FIG.
The display tape 26 is attached so as to be in contact with both the rear end surface of the contact glass 16 and the end of the short portion 18. The second display unit 27 is provided on the display tape 26,
When the document 20 is placed at a predetermined position, the position where the corner portion 21 of the document 20 contacts is indicated by a symbol such as a triangle mark, and the size and direction of the placed document 20 are displayed.

When manufacturing the original positioning member 15 configured as described above, the original positioning member 15 in which the right-angled portion 19 is formed at an accurate right angle in advance by an injection molding method or the like is attached to the contact glass on the original platen 13. After being arranged so as to be in close contact with the 16 side faces and the rear end face,
Is screwed into the female screw hole of the document table 13 through both locking holes 22 of the document positioning member 15. Further, the image forming apparatus 11
When the document positioning member 15 is to be removed from the document table 13 in the maintenance, the two fixing screws 23 need only be removed. Conversely, when the document positioning member 15 is attached to the document table 13 after maintenance, the same operation as in the case of manufacturing the document positioning member 15 can be performed.

When positioning the document 20 using the document positioning member 15, as shown in FIG. 1, first open the document cover 14, confirm the size of the document 20, and determine the size of the document 20 and the document positioning. First and second members 15
The direction in which the document 20 is arranged is determined by illuminating the display units 25 and 27 of the document. Then, the original 20 held face down
Are placed on the contact glass 16 roughly in the direction in which they are arranged. As shown by the two-dot chain line in FIG.
While lightly pressing the back side of the document 20 with a finger, the document 20 is slid to the left on the contact glass 16 so that the entire side edge of the document 20 is in close contact with the long portion 17 of the document positioning member 15. Then, as shown by the solid line in the figure, the original 20 is slid in parallel in the depth direction of the original platen 13 as it is, and the right-angled portion 19 of the original positioning member 15 and the corner 21 of the original 20 are engaged. Combine.

The original 2 is repeated in the above-described pattern.
During the positioning of 0, this pattern is naturally acquired and the time required for positioning the document 20 can be further reduced.

As shown in FIG. 3, the second document positioning member 15 includes a short portion 18 extending in the vertical direction of the document table 13 and a long portion 17 extending in the horizontal direction of the document table 13. Has the same configuration as the first document positioning member 15.

When positioning the original 20 using the second original positioning member 15, as shown by a two-dot chain line in FIG.
The document 20 placed on the contact glass 16 is slid in the depth direction, and the long portion 1 of the document positioning member 15 is moved.
The whole edge of the document 20 is brought into close contact with the document 7. Thereafter, as shown by the solid line in FIG. 3, the original 20 is slid to the left of the original table 13 so that the right-angled portion 19 of the original positioning member 15 and the corner 21 of the original 20 are engaged.

As shown in FIG. 4, the third document positioning member 15 has a short portion 18 extending in the vertical direction of the document table 13 in close contact with the entire left edge of the contact glass 16.
Except that the long portion 17 extending in the lateral direction of the contact glass 16 is configured to be in close contact with the entire rear end face of the contact glass 16.
The configuration is the same as that of the second document positioning member 15.

When positioning the document 20 by using the third document positioning member 15, one of the positioning methods performed by using the first and second document positioning members 15 is more easily positioned. Can be arbitrarily selected.

Next, the document positioning member 1 of the above embodiment is described.
5 will be described. According to the document positioning member 15 of each embodiment, since the long portion 17 and the short portion 18 are integrally formed via the right angle portion 19, the jig for setting the right angle is a contact glass. There is no need to readjust the squareness when reassembling when the 16 is removed or replaced. For this reason,
The labor and time required for manufacturing and maintaining the image forming apparatus 11 can be reduced. Furthermore, since the right-angled portion 19 is formed in advance by an injection molding method or the like, the right-angled portion 19 can be easily and quickly obtained with a simple molding device. Therefore, it is possible to reduce the cost of manufacturing and maintenance of the document positioning member 11. According to the document positioning member 15 of each embodiment, while the positioning of the document 20 is repeatedly performed in a certain pattern, the pattern naturally attaches to the
The time required for the positioning of 0 can be further reduced. According to the document positioning member 15 of each embodiment, by setting the length of the short portion 18 to 5 mm or more and the length of the contact glass 16 or less, the corner portion 21 of the document 20 is formed.
Is securely engaged with the right-angled portion 19, and the document 20 can be arranged at a predetermined position. According to the second and third document positioning members 15 of the embodiment, by providing the first display unit 25 on the long unit 17 and providing the second display unit 27 on the display tape 26, The position where the document 20 is arranged can be easily determined.

The above embodiment can be modified as follows. Applying the image forming apparatus 11 to a printer, a facsimile, or the like. A long portion 17 of the first document positioning member 15
Is set to be short so that the length is almost the same as that of the short portion 18.

Even with this configuration, since the document positioning member 15 has the right-angled portions 19, the positioning of the document 20 can be easily performed. In the first document positioning member 15, the display tape 26 is omitted.

With this configuration, the position of the document 20 can be determined by the first display unit 25 of the long unit 17. -Only the right angle portion 19 of the document positioning member 15 is formed thick.

With such a configuration, the right angle portion 19 and the corner portion 21 of the document 20 can be more reliably engaged. The first to third document positioning members 15 are formed of a synthetic resin such as an acrylic resin or a polycarbonate resin, a metal such as aluminum, other glass, wood, or the like. A short portion 18 of the second document positioning member 15
The display tape 26 on the extension of.

Next, the technical ideas that can be grasped from the embodiment will be described below. The document positioning member according to claim 2 or 3, further comprising a document size display section for displaying the size of the document on the elongated portion.

In the case of such a configuration, the position where the document is arranged can be more easily determined by the display unit in the vertical direction or the vertical and horizontal directions. The right-angled portion is a short portion extending in the vertical direction of the platen,
The document positioning member according to claim 1, wherein the document positioning member is formed of a long portion extending in a lateral direction of the document table.

With this configuration, the positioning of the original is easy, and the labor and time required for manufacturing and maintaining the image forming apparatus can be reduced.
Manufacturing and maintenance costs can be reduced.

[0030]

The present invention is configured as described above, and has the following effects. The document positioning member according to claim 1 facilitates positioning of the document,
The labor and time required for manufacturing and maintaining the image forming apparatus can be reduced, and the manufacturing and maintenance costs can be reduced.

The document positioning member according to the second aspect can further reduce the manufacturing and maintenance costs in addition to the effects of the first aspect of the invention. The document positioning member according to the third aspect can further easily position the document in addition to the effect of the invention described in the second aspect.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an image forming apparatus provided with a document positioning member.

FIG. 2A is a plan view showing a document table of the embodiment,
2B is a sectional view taken along line 2-2 in FIG.

FIG. 3 is a plan view showing a second document positioning member of the embodiment.

FIG. 4 is an exemplary plan view showing a third document positioning member according to the embodiment;

5A is a plan view showing a conventional document table, and FIG.
FIG. 5 is a cross-sectional view taken along line 5-5 in FIG.

[Explanation of symbols]

11: Copy machine as image forming apparatus, 13: Document table, 1
5: Document positioning member, 17: Long section, 18: Short section,
19: right angle portion, 20: original, 21: corner portion, 27: second display portion as a display portion.

Continued on the front page F term (reference) 2H012 AA13 CA03 CA12 2H076 BA03 BA04 5C072 BA02 LA03 RA01 RA04 RA06 XA01

Claims (3)

[Claims] 1. A document positioning member provided on a document table of an image forming apparatus, the document positioning member having an integrally formed right angle portion that engages with a corner portion of a document. 2. The document positioning member according to claim 1, wherein the right angle portion is formed by a long portion extending in a vertical direction of the document table and a short portion extending in a horizontal direction of the document table. 3. The document positioning member according to claim 2, further comprising a display section for displaying a size of the document in a lateral direction of the document table.