JP2514630Y2 - Roll recording paper storage device guide plate - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an accommodating device for accommodating roll recording paper and a guide plate used therein for suppressing a decrease in tension obtained when the roll paper is conveyed.

[0002]

2. Description of the Related Art Conventionally, a roll recording paper used in a facsimile machine or the like has a problem that it is difficult to read and organize because the shape after recording is curled. In order to solve this, a paper guide is provided in the conveyance path between the roll recording paper storage device and the platen roller, and when the recording paper is conveyed by the platen roller, a reverse curl that reverses the curl direction of the recording paper is provided. Is proposed. In this case,
Since the roll recording paper is pressed by the paper guide, it is necessary for the roll recording paper to have a tension enough to resist the pressing.

[0003]

However, when the roll recording paper is newly used, it is possible to obtain a tension against the conveying force of the platen roller due to its own weight, and to apply a reverse curl by the paper guide. However, if the self-weight of the recording paper becomes lighter as it is consumed, it will not be possible to obtain tension that resists the transport force of the platen roller, and the recording paper will slacken even if reverse curl is given by the paper guide. However, there is a problem in that it cannot be removed.

An object of the present invention is to provide a roll recording paper accommodating device which can obtain a constant tension on the roll recording paper and a guide plate used for the same.

[0005]

SUMMARY OF THE INVENTION In order to solve the above problems, the present invention is provided in a storage portion of a roll recording paper storage device.
On the guide plate that regulates the width direction of the roll recording paper.
The guide plate has a locking portion provided in the storage portion.
To form a detachable engaging part by elastically deforming
Along with pressing the roll recording paper in its axial direction
The gist is that the pressing member is integrally provided.
It

[0006]

According to the present invention thus constructed , when the roll recording paper storage device is mounted so that the engagement portion of the guide plate engages with the locking portion of the storage portion of the roll recording paper storage device , the roll recording paper stored in the storage portion is accommodated. Is pressed in the axial direction by the pressing member of the guide plate. At this time, the engaging portion of the guide plate is deformed according to the shape of the locking portion of the storage portion, so that the guide plate can be smoothly attached to and detached from the storage portion. When the roll recording paper is conveyed, the roll recording paper is pressed in the axial direction, so that a constant tension is obtained with respect to the roll recording paper.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment in which the present invention is embodied in a facsimile machine will be described below with reference to FIGS.

As shown in FIG. 1, the facsimile apparatus is provided with an upper case 1 and a lower case 2. A storage frame 3 as a roll recording paper storage device is fixed to the lower case 2, and roll recording paper (hereinafter referred to as roll paper) R is stored in the storage frame 3. A platen 4 for transporting the roll paper R is rotatably supported by the lower case 2 in front of the storage frame 3 (on the left side in FIG. 1). A frame 5 is attached to the inner surface of the upper case 1 above the platen 4. A thermal head 6 that contacts the platen 4 and prints on the roll paper R is fixed to the outer bottom surface of the frame 5. Further, a paper guide 7 formed in a substantially V-shaped cross section is screwed and attached to the outer bottom surface of the frame 5 behind the thermal head 6 (on the right side in FIG. 1). The roll paper R stored in the storage frame 3 is held by the paper guide 7 and is sandwiched between the platen 4 and the thermal head 6, and the roll paper R is rotated by the platen 4 during recording. Printing is performed by the thermal head 6 while being conveyed, and is discharged from the discharge port 8 between the upper case 1 and the lower case 2.

As shown in FIGS. 1 and 2, the storage frame 3 comprises a connecting portion 9, a roll paper guide 10 and a storage portion 11. The connecting portion 9 is formed upright from the bottom surface of the lower case 2 below the platen 4, and is formed in a plate shape. The roll paper guide 10 is connected to the upper end of the connecting portion 9, and is formed in a curved plate shape along the outer peripheral surface of the platen 4 and the lower shape of the paper guide 7. The storage part 11 is connected to one end of the roll paper guide 10 and is formed in a box shape having a U-shaped cross section with an opening at the top.
A roll paper R of a size or the like can be stored and a guide plate 14 described later can be mounted.

As shown in FIGS. 2 and 3, the storage portion 11 is
Guide grooves 12a and 12b are recessed at two locations on the inner surface of one side portion in the width direction. In addition, each guide groove 12
Locking holes 13a and 13b as lock parts for mounting the guide plate 14 are provided in the vicinity of both ends of a and 12b.

On the other hand, as shown in FIG. 2 and FIGS. 6 to 8, the guide plate 14 has a synthetic resin main body 15 formed in a semicircular plate shape, and is also made of synthetic resin and has elastic engagement. A piece 16 is formed from the semi-circle top of the main body 15 to the vicinity of the base end along the outer peripheral surface, and has a biasing force against the side end of the main body 15. An engaging protrusion 15a as a part of an engaging portion is provided on an upper portion of a side end of the main body 15 opposite to a side end on which the engaging piece 16 is formed. The engaging piece 1
At the upper end of 6, a hooking protrusion 16a for hooking the engaging piece 16 and moving it to the side end side of the main body 15 is provided to project outward. On the outer surface of the engaging piece 16 in the vicinity of the hooking protrusion 16a, a locking step portion 16b that engages with one end of the guide groove 12 of the storage portion 11 is formed. An engaging projection 16c as a part of the engaging portion is formed in a mountain shape on the outer surface of the engaging piece 16 below the locking step portion 16b. A U-shaped protrusion 19 is formed on the rear surface of the main body 15 and the engagement piece 16 (see FIGS. 7 and 8).

A pressing plate 17 as a pressing member is provided on the front surface of the main body 15 (see FIGS. 2 and 6), and a locking plate 18 extends from the center of the base end portion thereof. As shown in FIGS. 6 and 8, the pressing plate 17 is formed of a metallic thin plate in a tongue shape, and is positioned so that a constant angle is formed between the base end portion and the main body 15, and the central portion The part is bent so as to be parallel to the main body 15, and has a biasing force against the front surface of the main body 15. As shown in FIG. 7, the locking plate 18 is bent to the rear surface of the main body 15 via a step portion 15b that is recessed in the center of the base end portion of the main body 15. Further, the locking plate 18 is provided with a pair of locking holes 18a and a locking port 18b. Further, a pair of locking protrusions 15c and a hook-shaped locking piece 15d having a protruding portion at the tip are provided on the rear surface of the main body 15, and the locking piece 15c
The opening 15e is transparently provided at a position corresponding to d. Then, each locking hole 18a of the locking plate 18 is engaged with each locking protrusion 15c, and the locking port 18b is engaged with the projecting portion at the tip of the locking piece 15d, so that the locking plate 18 becomes the main body 15. The pressing plate 17 does not separate from the main body 15 because it is locked to and integrated with.

As shown in FIGS. 3 and 9 and 10, the guide plate 14 is attached to and detached from the guide groove 12a or the guide groove 12b of the storage portion 11 of the storage frame 3 according to the size of the roll paper R. The engaging projection 15a of the main body 15 of the guide plate 14 is engaged with the guide groove 12a or the locking hole 13a of the guide groove 12b, and the engaging projection 16c of the engaging piece 16 is engaged with the guide groove. 12a or the engaging hole 13b of the guide groove 12b, the guide plate 14 does not separate from the storage portion 11, and the pressing plate 17
Thus, the roll paper R is pressed in the axial direction. The ridges 19 provided on the guide plate 14
The outer peripheral part of the guide plate contacts the inner peripheral part of the storage part 11, and the locking step part 16b of the engagement piece 16 engages with one end of the guide groove 12 of the storage part 11 to guide the guide plate 14. The fitting position into the grooves 12a and 12b is regulated.

Next, in order to mount the guide plate 14 on the storage frame 3 thus constructed, as shown in FIG.
When the roll paper R of A4 size is used, it is stored in the storage portion 11 of the storage frame 3, and then the locking hole 13a of the guide plate 14 is inserted into the locking hole 13a of the guide groove 12a of the storage portion 11.
Insert. Next, the lower part of the engaging piece 16 of the guide plate 14 is fitted from the end of the guide groove 12a on the side of the locking hole 13b. Then, the hooking protrusion 1 of the engaging piece 16 in the P arrow direction
While pressing 6a, the guide plate 14 is moved downward along the guide groove 12a so that the main body 15 and the lower portion of the engaging piece 16 are fitted together. Then, as shown in FIGS. 3 and 4, when the engaging projection 16c of the engaging piece 16 reaches the locking hole 13b while sliding in the guide groove 12a, the elasticity of the engaging piece 16 itself causes the outside of the housing portion 11 to move. The guide plate 14 is urged to open toward the storage hole 13b, and the locking step 16b of the engaging piece 16 is locked at the end of the guide groove 12a. It is attached to 11. And the guide plate 1
The pressing plate 17 of No. 4 is brought into contact with the side edge of the roll paper R,
By being moved to the 5 side, the roll paper R is pressed and urged. When using B4 size roll paper R,
After storing this in the storage portion 11 of the storage frame 3, the guide plate 14 is inserted into the locking hole 13a of the guide groove 12b of the storage portion 11.
After inserting the locking hole 13a, the guide plate 14 is mounted by performing the same operation as described above.

Further, in order to detach the guide plate 14 from the storage frame 3, as shown in FIG. 3, when A4 size roll paper R is used, the guide plate 14 is mounted in the guide groove 12a. As shown in FIG. 4, the guide plate 1 is pressed while pressing the hooking protrusion 16a of the engaging piece 16 in the direction of arrow P.
4 is moved upward, the engaging protrusion 16c of the engaging piece 16
Is released from the locking hole 13b of the guide groove 12a, disengaged, and moves while sliding in the guide groove 12a. Then, as shown in FIG.
a is engaged with the locking hole 13a of the storage portion 11, and the guide plate 1
After the lower end of the engaging piece 16 of No. 4 is locked to the end of the guide groove 12a or separated from the end, the engaging projection 15a of the guide plate 14 and the locking hole of the storage unit 11 13a
The guide plate 14 is detached from the storage portion 11 by releasing the engagement with the. In addition, the pressing plate 1 of the guide plate 11
7 is urged to open by its own elasticity and returns to its original position. When B4 size roll paper R is used, the guide groove 1
With the guide plate 14 attached to 2b, the guide plate 14 is removed by performing the same operation as described above.

When the roll paper R is to be replaced, it may be replaced after the guide plate 14 is detached from the storage frame 3. As described above, in the roll recording paper storage device of this embodiment and the guide plate used for the same, the storage frame 3 is provided with the storage portion 11 for storing the roll paper R, and the storage portion 11 is provided with the guide grooves 12a and 12b and the locking portions. Holes 13a, 1
3b, on the other hand, the guide plate 14 is composed of a main body 15 and an engaging piece 16, an engaging projection 15a is provided on the main body 15, and a pressing plate 17 is integrally provided to engage the engaging piece 16. The roll paper R is always pressed in the axial direction by the elastic force of the pressing plate 17 by providing the mating projection 16c and being detachably mounted in the storage unit 11.
It is possible to obtain a constant tension irrespective of the change in its own weight when the sheet is conveyed.

Also, two guide grooves 12 are provided in the storage section 11.
By providing a and 12b and the corresponding locking holes 13a, the guide plate 14 can be formed in accordance with the size of the roll paper R.
The position can be selected and mounted.

Further, since the engaging projection 16c is provided on the engaging piece 16 of the guide plate 14, the engaging projection 16c is movable together with the engaging piece 16, so that the guide plate 14 can be easily attached and detached. be able to.

The present invention is not limited to the above embodiment, and for example, in the above embodiment, the pressing plate 17 is integrally attached to the main body 15 of the guide plate 14 via the metal locking plate 18. However, as shown in FIGS. 11 to 13, an opening portion 20 having substantially the same shape as the pressing plate 17 is formed in the main body 15 of the guide plate 14.
Is formed so as to be smaller than the pressing plate 17 on the proximal end side (the upper side in FIG. 11) of the opening 20, and the main body 15 is integrally formed with the pressing plate 21 made of synthetic resin. On the rear surface (see FIG. 12), the main body side end of the ridge 19 and the reinforcing ridges 22 are connected and projected from the bottom, and the rear surface (see FIGS. 12 and 13) of the pressing plate 21 is almost centered. Reinforcing ribs 23 may be provided on the periphery of the lower end portion so as to be used.

Further, depending on the size of the roll paper, the guide groove 1
The positions of 2a and 12b may be changed, the number thereof may be increased or decreased, and may be arbitrarily changed without departing from the spirit of the present invention.

[0021]

As described above in detail , according to the present invention,
Since the roll recording paper stored in the storage device is constantly pressed in the axial direction by the elastic force of the guide plate, there is an excellent effect that a constant tension can be obtained with respect to the roll recording paper. Further, when the guide plate is attached to or detached from the storage portion, the engaging portion of the guide plate is deformed according to the shape of the locking portion of the storage portion, so that the guide plate can be smoothly attached to and detached from the storage portion. Done.

[Brief description of drawings]

FIG. 1 is a partial cross-sectional view showing an internal configuration of a facsimile apparatus according to an embodiment of the present invention.

FIG. 2 is a perspective view showing a storage frame, a guide plate and roll paper.

FIG. 3 is a partial cross-sectional view showing a state in which a guide plate is likewise attached to a storage portion.

FIG. 4 is a partial cross-sectional view showing a state in which an engaging piece of the guide plate is also pressed.

FIG. 5 is a partial cross-sectional view showing a state in which the guide plate is similarly moved upward from the storage portion.

FIG. 6 is a front view showing a guide plate of the same.

FIG. 7 is a rear view showing the same guide plate.

FIG. 8 is a right side view showing the same guide plate.

FIG. 9 is a sectional view showing a state in which an A4 size roll paper and a guide plate are similarly mounted in the storage section.

[FIG. 10] Similarly, B4 size roll paper and
It is sectional drawing which shows the state which mounted the guide plate.

FIG. 11 is a front view showing a guide plate of another embodiment.

FIG. 12 is a rear view showing the same guide plate.

FIG. 13 is a right side view showing the same guide plate.

[Explanation of symbols]

3 storage frame (roll recording paper storage device), 11 storage part, 13a, 13b locking hole (locking part), 14 guide plate, 15a, 16c engagement protrusion (engagement part), 17 pressing plate, R roll paper .

Claims (1)

(57) [Scope of utility model registration request] 1. A roll recording paper storage device provided in a storage portion.
On the guide plate that regulates the width direction of the roll recording paper.
The guide plate has a locking portion provided in the storage portion.
When engaging and forming a detachable engaging part by elastic deformation
Both push the roll recording paper against the axial direction.
A guide plate comprising a pressure member integrally provided.