JP2504201Y2 - Roll paper holder mounting structure - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a roll paper holder mounting structure applied to an image recording apparatus such as a facsimile machine which uses roll paper as recording paper.

[0002]

2. Description of the Related Art In an image recording apparatus using roll paper as a recording paper, the roll paper is set freely in a recording paper storage box provided in the apparatus main body, and the recording paper fed from the roll paper is conducted to a recording section. It is usual to do.
At this time, there are two ways to set the roll paper in the recording paper storage box: when storing the roll paper with the shaft center free, or by holding both ends of the roll paper with holders and holding the shaft center in the fixed position. May be stored.

In the latter case, the roll paper holders are inserted into the inner space of the roll paper core from both sides, and the roll paper holders inserted into both ends of the roll paper are supported by the inner wall of the recording paper storage box. Alternatively, it is attached to and supported by a holder supporting portion that is recessed in the side wall of the partition plate that is insertably inserted into the recording paper storage box.

FIG. 5 shows an example of an attachment structure of a roll paper holder 52 to a partition plate 51 inserted into a recording paper storage box 50. The roll paper holder 52 inserted into the inner space of the core C of the roll paper R is shown in FIG. Is provided with an annular mounting piece 53 at the base end thereof, while a holder support 54 supporting the mounting piece 53 of the roll paper holder 52 is provided on the side wall of the partition plate 51.
Is attached to the holder support portion 54, and the mounting piece portion 53 of the roll paper holder 50 is inserted (dropped) from above to be mounted on the holder support portion 54 while being inserted into the roll paper R. A common mounting structure is adopted for the other roll paper holder (not shown) mounted on the inner wall of the recording paper storage box on the opposite side.

[0005]

In the conventional holder mounting structure, as described above, the mounting piece 5 of the roll paper holder 52 is attached to the holder supporting portion 54 provided on the partition plate 51 or the like.
3 is mounted by simply dropping it from above, but this structure has a problem that the roll paper holder 52 floats up and down on the holder support portion 54 and the set state of the roll paper R tends to become unstable. .

This problem is caused by the roll paper R as shown in FIG.
This is particularly noticeable when the recording paper P is unwound from below and the upward pulling force F acts on the roll paper R as the recording paper P is unwound. When the recording paper P is initially set so as to be pulled out strongly upward, as shown by the chain double-dashed line in the figure, the mounting piece portion 53 of the roll paper holder 52 often comes out of the holder support portion 54. .

The present invention has been made in view of the above problems in the present situation.
The roll paper holder can be stably positioned without floating in the mounted state with respect to the holder supporting portion provided on the inner wall of the recording paper storage box or the side wall of the partition plate inserted into the recording paper storage box. (EN) An improved roll paper holder mounting structure.

[0008]

In a roll paper holder mounting structure improved based on the present invention, as a first means, the roll paper is inserted into the inner space of the roll core and the roll paper is rotated.
The mounting piece portion provided on the roll paper holder that holds the rolling capable, while for hanging a deformable elastic claw piece inwardly from both sides of the mount piece, the inner walls or the recording paper storage box forming a support member on both sides of the holder supporting portion attaching piece portion you supported unrotatably holder is inserted in the recording paper is recessed in the side wall of the partition plate to be inserted into the storage box roll paper holder from above, said elastic claw piece bullet An engaging recess for locking and locking is provided.

As a second means adopted in combination with the above-mentioned first means , the mounting piece portion provided on the roll paper holder is projected above the new diameter of the roll paper into which the roll paper holder is inserted. I am trying to let you.

[0010]

According to the first means, elastic claw pieces hung from both sides of the mounting piece portion of the roll paper holder are provided on both sides of the holder supporting portion in the mounting state of the roll paper holder to the holder supporting portion of the supporting member. It is elastically locked in the engaged recess,
Restrain the floating of the roll paper holder. In addition, according to the second means, not only is the handling convenience of the roll paper holder that grips the attachment piece that also serves as the handle improved, but the attachment piece that protrudes above the new diameter of the roll paper is also provided. Since the inner surface of the recording paper cover that is openably and closably mounted on the recording paper storage box that normally stores the roll paper is pressed down, the roll paper holder can be prevented from rising.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows an outline of a roll paper built-in type facsimile apparatus as a specific example of application of the holder mounting structure according to the present invention, and FIGS. 2 to 4 show a recording paper storage box mounted in the facsimile apparatus. The details of the mounting structure of the roll paper holder provided in the recording paper storage box are shown. Therefore, first, an outline of the entire apparatus will be described with reference to FIG.

In this facsimile apparatus, a recording paper storage box 2 provided at the rear end of the apparatus main body 1 is provided with a roll paper R in which long recording paper (thermal paper) is wound around a core (paper tube) C. Is set rotatably. The roll paper R set in the recording paper storage box 2 is such that a roll paper holder, which will be described later, is inserted into the inner space of the winding core from both sides so that the axis of the roll paper R is held at a fixed position. The recording paper P is fed out from the lower side while rotating around the paper holder.

From the built-in roll paper R of the recording paper storage box 2, a recording paper P is integrally formed by a platen roller 3 provided in front of the paper guide 2 A from the front upper end of the recording paper storage box 2. The paper is fed out through the upper paper path 13 and printed by the thermal head 4 pressed against the lower surface of the platen roller 3. Subsequently, the printed recording paper P printed by the thermal head 4 is transferred to the paper path 1.
4, the printed and cut recording paper P is passed through the cutter unit 5 immediately after it and cut, and the printed recording paper P is passed through a curved paper path path (U-turn discharge path) formed between the paper guides 12a and 12b in front of it. ) U upward through 15
After being turned, the sheet is nipped between a paper discharge roller 6 and a pinch roller 7 provided at the outlet thereof, and the recording paper discharge portion 10 provided on a recording paper cover 9 which covers the upper surface of the main body from the recording paper discharge opening 8. The paper is discharged with the printing surface facing upward.

In the facsimile apparatus described above, the thermal head 4, the cutter unit 5, the paper path 13,
The paper guides 12a and the like arranged on the lower side of 14, 15 are attached to the apparatus main body 1 side, and on the upper side of the platen roller 3, the paper discharge roller 6, the pinch roller 7 and the paper path passages 13, 14, 15, respectively. Placed paper guide 1
2b and the like are attached to the side of the recording paper cover 9 except those formed integrally with the cutter unit 5.

The recording paper cover 9 has a hinge 11 on both sides of a rear end of a cover frame (not shown).
Is mounted on the main body 1 of the apparatus so as to be openable and closable so as to cover the recording paper storage box 2 and the recording paper discharge path in front of the recording paper storage box 2, and the front end portion of the transmission original document fed into the transmission portion to be described later. A document mounting section 16 for setting a sheet is provided, and the recording paper discharge port 8 is provided on the inner surface of the document mounting section 16.
The recording paper P discharged from the recording paper discharge unit 10 on the cover
A recording paper retainer 17 that presses down from above is swingably attached. It should be noted that the recording paper cover 9 is arranged such that, when the cover is closed, the inner surface of the recording paper cover 9 comes close to the roll paper R having a new diameter stored in the recording paper storage box 2.

In addition, in FIG. 1, reference numerals 20 and 21 denote paper sensors provided in a feeding path and a discharging path of the recording paper P, and reference numeral 22 denotes a feeding document set in the document mounting section 16 and fed to a reading section. The transmitter at the front end of the device
Reference numeral 23 denotes an optical reading system provided in the main body 1 so as to face the reading unit of the transmitting unit 22. Reference numeral 24 denotes a power supply unit mounted on the rear end of the apparatus body 1.

Next, referring to FIGS. 2 to 4, a recording paper storage box 2 mounted on the facsimile apparatus and a roll paper holder 42 provided in the recording paper storage box 2 will be described.
The details of the mounting structure will be described.

The recording paper storage box 2 is formed of a rectangular box body having an open top, and is formed of a plastic integrally molded product except for the central portion of the bottom portion formed by a separate bottom lid 2B. In the recording paper storage box 2, a holder support portion 30 for supporting a roll paper holder 42, which will be described later, is recessed on an inner wall on the right side corresponding to the set reference end of the storage roll paper R, and the left side on the opposite side Has a roll paper R
3 that partitions the inside of the box in the longitudinal direction according to the paper width of
1 is removably attached.

The details of the partition plate 31 and the mounting structure of the partition plate 31 to the recording paper storage box 2 are as follows.
The partition plate 31 is provided with a projection 32 at the lower portion of the front edge thereof and a ridge 33 at the central portion of the rear edge thereof, and is integrally molded with the partition plate 31 from the upper end of the rear edge portion and can be tilted back and forth. Falling lever 3
4 is projected upward, and the lock claw 35 is projected from the rear edge of the bent portion of the lever 34. On the other hand, on the inner surface of the recording paper storage box 2, at the positions corresponding to the A4 width roll paper and the B4 width roll paper, the insertion holes 36 into which the protrusions 32 of the partition plate 31 are inserted in the lower portion of the front wall portion. However, a groove 37 into which the protrusion 33 of the partition plate 31 is inserted is provided in the upper portion of the rear wall portion, and the lever 3 of the partition plate 31 is provided in the vicinity of the upper end portion of the groove 37.
Holes 38 with which the lock claws 35 provided in 4 are engaged are respectively provided.

When the partition plate 31 is attached to the recording paper storage box 2, the ridge 33 at the center of the trailing edge is set in the groove 3 from above.
7 and insert the protrusion 32 at the lower part of the front edge into the insertion hole 3
6 while inserting the lock claw 35 of the lever 34 into the groove 37.
The mounting is completed with the hole 38 locked. Also,
When removing the partition plate 31 at the time of replacement, first pull the lever 34 forward to allow the lock claw 35 to escape from the hole 38 of the groove 37, and then pull up the partition plate 31 to easily pull it out. be able to.

Further, on the right side wall of the partition plate 31, a pair of left and right holder support parts 3 is provided with the holder support part 30 provided on the right side inner wall of the recording paper storage box 2.
9 is recessed. The holder support portion 39 is formed in a recessed shape corresponding to a mounting piece portion 45 of a roll paper holder 42 described later, and is formed into a step portion 40 that is expanded and formed on both sides of the upper end portion.
An engaging recess 41 to which elastic claw pieces 46 provided on both sides of a holder mounting piece 45, which will be described later, engage is provided. The holder holder 39 and the holder support 30 on the inner wall of the box (not shown in FIG. 2) have the same shape. Then, a holder support portion 30 provided on the recording paper storage box 2 and a holder support portion 39 provided on the partition plate 31.
Further, a pair of roll paper holders 42 of the same type that supports the axial center of the roll paper R is detachably attached.

As shown in FIGS. 2 and 4, the roll paper holder 42 includes a cylindrical holder body 43 to be inserted into the inner space of the core (paper tube) C of the roll paper R and a holder body 43. A plate-shaped mounting piece portion 45 that also functions as a handle portion that cantilevers is integrally provided, and the bottom portion of the holder body 43 is elastically deformed in a state of being inserted into the inner space of the winding core to be A pressing claw 44 that is pressed against the peripheral surface is provided separately.

As shown in FIGS. 1 and 3, the mounting piece portion 45, which is connected to the base end portion of the holder main body 43, has a roll paper holder 4
2 is integrally formed in a vertically elongated shape protruding above the new diameter of the roll paper R into which 2 is inserted. As shown in FIG. 4 (B), a rib is provided around the outer surface of the roll paper R, and a finger is provided on the upper end thereof. A handle portion 45a for hanging is provided. A pair of left and right elongated elastic claw pieces 46 that can be deformed inward are integrally hung down from both sides of the mounting piece section 45. Each elastic claw piece 46 has an inwardly bent lower end bent. Small projection 4 from the vicinity of the part
7 project outward.

The roll paper holder 42, with the holder body 43 inserted in the inner space of the roll paper R core,
The holder attachment pieces 45 are inserted into the holder support portion 30 provided on the recording paper storage box 2 and the holder support portion 39 provided on the partition plate 31 from above respectively and attached. At this time, the elastic claw pieces 46 provided on both sides of the mounting piece portion 45 flexibly enter along the stepped portions 40 formed on both sides of the holder support portions 30 and 39 while expanding, and the elastic claw pieces 46 are small. Engagement recess 41 with protrusion 47 provided on step 40
The holder mounting piece 45 is locked to the holder supporting portions 30 and 39 at a predetermined mounting position in a state where the holder mounting piece 45 is elastically locked.

If the above-mentioned holder mounting structure is adopted, the roll paper holder 42 is inserted to the predetermined engaging position in the holder supporting portions 30 and 39 provided on the recording paper storage box 2 and the partition plate 31 which are supporting members. In the proper mounting state, the elastic claw pieces 46, 4 hung from both sides of the holder mounting piece part 45
6 is elastically locked in the engaging recesses 41, 41 provided on both sides of the holder supporting portions 30, 39, and the vertical movement of the roll paper holder 42 is restrained. Therefore, even if an upward pulling force acts on the roll paper R as the recording paper P is fed from below, there is a risk that the roll paper holder 42 will float or escape as seen in the conventional structure of FIG. Instead, the roll paper R can be stably held in a fixed position in the recording paper box 2. When removing the roll paper holder 42 from the holder supporting portions 30 and 39, the elastic claw pieces 46,
The small projection 47 is pulled out from the engaging concave portion 41 by sandwiching 46 from both sides and bending the same inward, and then the mounting piece portion 45 is pulled out upward.

Further, the mounting piece portion 45 of the roll paper holder 42
Not only improves the convenience of the operation of attaching and detaching the roll paper holder 42 by grasping the attachment piece portion 45 which also serves as a handle, but as shown by the two-dot chain line in FIG. The recording paper storage box 2 for storing the roll paper R is provided with a mounting piece portion 45 protruding above the new diameter of the paper R.
Since it can be pressed down by the inner surface of the recording paper cover 9 which is openably and closably attached, the roll paper holder 42 can be more reliably prevented from rising.

In particular, when the holder engaging piece portions 45 are provided with elastic claw pieces 46, 46 on both sides of the holder attaching piece portion 45 in addition to a means for projecting the holder attaching piece portion 45 upward, Due to the presence of the elastic claw pieces 46, 46 having insertion resistance when the holder 42 is inserted and mounted, the mounting piece portion 4
5 overcomes the problem that it is likely to be imperfectly set on the holder support portions 30 and 39, and even if the roll paper holder 42 floats up due to a setting error, the roll paper holder 42 is automatically closed when the recording paper cover 9 is closed. Will be reset to the proper mounting position.

In the above embodiment, the roll paper holder 42, which is inserted into the inner space of the core of the roll paper R from both sides,
One of the holder support portions 30 provided on the recording paper storage box 2
The other side is attached to the holder supporting portion 39 provided on the partition plate 31 which can be inserted into the recording paper storage box 2 so as to be replaceable according to the roll paper width. However, the recording paper storage box 2 without the partition plate 31 is used. In this case, both of them may be attached to the holder support portion 30 provided at a position facing the inner wall of the recording paper storage box 2.

The structure for mounting the roll paper holder according to the present invention is not limited to the facsimile device described in the embodiment, but is generally applicable to an image recording device of the type in which roll paper is incorporated as recording paper.

[0030]

As described above, in the improved roll paper holder mounting structure of the present invention, according to the first means, the elastic claw pieces hung from both sides of the roll paper holder mounting piece are holder supporting portions. Is elastically locked in the engaging recesses provided on both sides of the roll paper holder to achieve the effect of restraining the floating of the roll paper holder.
In addition, according to the second means, not only is the handling convenience of the roll paper holder that grips the attachment piece that also serves as the handle improved, but the attachment piece that protrudes above the new diameter of the roll paper is By holding the roll paper holder on the inner surface of the recording paper cover that can be opened and closed freely on the recording paper storage box that holds the roll paper, the effect of more reliably preventing the roll paper holder from rising can be achieved. Become.

[Brief description of drawings]

FIG. 1 is a schematic cross-sectional view of a facsimile apparatus showing an application example of a roll paper holder mounting structure according to the present invention.

FIG. 2 is an exploded perspective view of the recording paper storage box shown in FIG.

FIG. 3 is a detailed sectional view of the recording paper storage box shown in FIG.

FIG. 4A is a front view of a roll paper holder, and FIG. 4B is a side sectional view of the same.

FIG. 5 is a cross-sectional view of a recording paper storage box showing a conventional mounting structure example of a roll paper holder.

[Explanation of symbols]

 1 Device Main Body 2 Recording Paper Storage Box 3 Platen Roller 4 Thermal Head 5 Cutter Unit 9 Recording Paper Cover 30 Holder Support Part 31 Partition Plate 39 Holder Support Part 40 Step Part 41 Engagement Recess 42 Roll Paper Holder 43 Holder Main Body 44 Presser Claw 45 Attachment piece 46 Elastic claw piece 47 Small protrusion R Roll paper C Core (paper tube) P Recording paper

Claims (2)

(57) [Scope of utility model registration request] 1. A are inserted into the winding core hollow portion of the roll has a mount piece paper, the roll paper holder you rotatably holding the roll paper, deformable elastic provided in the mount piece Insert the claw piece and the mounting piece from above to prevent the holder from rotating.
A structure for mounting a roll paper holder, which comprises a holder support part that supports the roll paper holder, and an engagement recessed part that is provided in the holder support part and elastically locks the elastic claw piece. 2. The mounting of the roll paper holder according to claim 1, wherein when the roll paper holder is inserted into the core of a new roll paper, the mounting piece portion projects outward from the outermost circumference of the roll paper. Construction.