JPH0445044A - Loading device for roll paper - Google Patents

Abstract

PURPOSE:To facilitate a job for roll paper loading by opposing a pair of loading plates, provided with a support part supporting the roll paper rotatably, symmetrically with each other, while shifting each rack installed respective plates parallelly in the opposite direction with a pinion, and energizing it inward with a spring. CONSTITUTION:Each of projected support parts 2Rt, 2Lt supporting roll paper P rotatably is formed in a central position of a symmetrical pair of loading plates 2R, 2L holding both ends of this roll paper P in between. Likewise, each of fingering parts 2Rn, 2Ln is installed in one side in front and in the rear of pinch surfaces 2Rs, 2Ls. Rack plates 4R, 4L are parallelly and orthogonally projected inward from each lower end of the loading plates 2R, 2L, and a pinion 5 is interposed between these rack plates. With the fingering part 2Rn pulled up, these loading plates 2R, 2L are separated from each other at the same time and loading of the roll paper P can be done easily, and with this separation, the roll paper P is rotatably supported by the support parts 2Rt, 2Lt.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a roll paper loading device for loading roll paper (recording paper) in a label printer or the like.

[Prior art and its issues]

There is a well-known label printer that has a large number of removable labels attached to a continuous backing paper, is equipped with a recording paper, records on the labels sequentially, and automatically issues the labels one by one after recording has been completed. It is being Further, since this type of label printer usually uses roll paper as recording paper, a loading device for loading the roll paper is provided inside the label printer.

By the way, in general, the loading device must be able to: (1) smoothly and quickly attach and detach roll paper, (2) apply a predetermined tension to the rolled paper, and (2) handle various types of paper with different standards (paper widths). Conditions such as being compatible with roll paper are required.

However, the conventional loading device has a complicated structure, such as the need to provide a tension mechanism with a separate structure, and tends to increase the size and cost of the device. In addition, there are no structural members or mechanisms that take into account the ease of attaching and detaching roll paper, and there is also a lack of compatibility with various types of roll paper, making it unsatisfactory in terms of usability and convenience.

An object of the present invention is to provide a roll paper loading device that solves the problems that exist in the prior art.

[Means to solve the problem]

A roll paper loading device 1 according to the present invention has a pair of opposing left and right loading parts in which supporting parts 2Rt and 2Lt that rotatably support the roll paper P are provided on clamping surfaces 2Rs and 2Ls that sandwich both ends of the roll paper P. Plates 2R, 2L and the opposite direction from one end of each loading plate 2R, 2L (loading plate 2R, 2
, L (the same applies hereinafter) A pair of rack plates 4R, 4L protrude inward at right angles, and each rack plate (4R) is arranged between each rack plate 4R and 4L.
an interlocking mechanism 3 having a rotatable pinion 5 that meshes with the rack plate 4R and 4L; a guide mechanism 6R, 6L that supports the rack play 4R14L and/or the loading plate 2R12L so as to be movable in parallel in opposite directions; and each loading plate 2R. , 2L inwardly in opposing directions. In addition, the loading plates 2R, 2L are located outward in the opposing direction from the clamping surfaces 2R3%2LS,
It is also desirable to provide finger hooks 2Ra and 2Ln on which the fingers H can hang. In this case, finger hooks 2Rn, 2L
n indicates recesses 2Ro and 2Lo provided in the clamping surfaces 2Rn and 2Ln.
It can be formed by

[For production]

According to the roll paper loading device 1 according to the present invention, each loading plate 2R and 2L has a guide mechanism 6R.

6L makes it possible to freely move in parallel in opposite directions, and the interlocking mechanism 3 makes the moving directions symmetrical. That is, one loading plate, for example, hooking the finger H on the finger hook 2Rn of 2R,
When the loading plate 2R is moved outward (inward) in the opposing direction, the rack plate 4R is also moved integrally in the same direction. This amount of movement is transmitted to the other rack plate 4L as a movement amount in the opposite direction via the pinion 5, and the rack plate 4L and the integrated loading plate 2L are interlocked in a symmetrical direction. Note that by moving the loading plates 2R and 2L outward in the opposing direction, the roll paper P can be loaded between the plates 2R and 2L, and the roll paper P can be loaded between the left and right loading plates 2R,
Clamping surfaces 2Rs, 2Ls and support portion 2Rt in 2L,
It is rotatably supported by 2Lt.

Furthermore, since the finger grip portion 2Rn is located outward in the opposing direction from the holding surface 2Rs, if that position is selected, the roll paper P
Finger H does not get in the way even when loading.

Furthermore, each loading plate 2R, 2L has a spring 7.7
, the flat clamping surfaces 2Rs and 2Ls of the loading plate 2R12L hold the roll paper P.
Press both ends of the roll paper P to apply a predetermined tension to the roll paper P.

Note that each loading plate)-2R12L is freely displaced in the opposite direction and is urged inward in the opposite direction by the spring 7.7, so that it is suitable for various roll papers P having arbitrary paper widths.

〔Example〕

Next, preferred embodiments of the present invention will be described in detail based on the drawings.

The embodiment shows a label printer M. First, in order to clarify the present invention, the overall configuration of the label printer M will be described with reference to FIGS. 5 and 6.

FIG. 6 shows the external configuration of the label printer M.

Reference numeral 11 denotes a casing, and a display section 12 and an operation section 13 with a key arrangement are provided on the left side of the upper surface part flu, and an opening/closing cover 14 for setting the roll paper P is provided on the right side.

On the other hand, the memory card insertion slot 1 is located on the left side of the front part 11f.
5), and the recording label (label where recording has been completed) is placed on the upper right side.

(hereinafter), same) A label ejection opening 16 where Le extends π is set, and a mount ejection 1] 17 is set at the lower right side ζ,': from which continuous mount B is ejected. Furthermore, the side surface portions 11 s J, z of the casing II are connected to the connector connection portion 19 and the display portion 12.
A display density adjustment section 20 is provided.

On the other hand, FIG. 5 shows a schematic internal structure of the label printer M.

First, casing 1. A loading device 1 according to the present invention is disposed on the rear side of the interior of the container. Then, roll paper P is loaded into this loading device 1. Note that the roll paper P is a recording paper formed by sequentially pasting a large number of removable labels LO on a continuous mount H.

On the other hand, a platen roller 22 is disposed near the inner side of the label take-out [116], and a thermal head 23 for pressing the upper surface of the platen roller 22 is disposed. In addition, a relatively small-diameter separator bin 24 is placed in front of the platen roller 22, and a transfer mechanism L7-7 consisting of a drive row 25a and an idling row 251N for transporting the continuous mount B is provided below the platen roller 22. 25, plasticine roller 22
A guide roller 26 is provided between the roll member P and the roll member P, respectively.
It's true.

Further, the inner side 12 of the casing 11 is provided with a light sensor 27 for detecting the presence or absence of the recording label Le.

Next, the loading device according to the present invention will be explained in detail in Figures 1 to 5.
This will be explained in detail with reference to the drawings.

First, the loading device 1 consists of a pair of left and right loading plates facing each other.
It is equipped with 2R and 2L. Each loading block l/-)-2R and 2L
are each formed in the same shape 1J and arranged symmetrically for use. Each loading plate 2R, 2N. , are formed into a generally rectangular shape as a whole, and have opposing clamping surfaces 2R that clamp both ends of the roll paper P.
s and 2Ls are formed on parallel flat surfaces. Also,
A protruding circular support part 2R1, 21, t for supporting the center of the roll paper P is integrally provided at the upper side of the holding surfaces 2Rs, 2LS and at the center position in the front-rear direction. Furthermore, on the − side of the holding surfaces 2Rs and 2Ls in the front-rear direction, a finger-holding portion 2Rn on which a finger H can be hung is provided at an intermediate position in the lower direction;
2N, , n are provided. The finger hooks 2Rn, 2I, n can be formed by providing upwardly open recesses 2Ro, 2Lo in the clamping surfaces 2Rs, 2Ls, whereby the finger hooks 2Rn,
2Ln is the clamping surface 2Rs.

It is located further outward in the opposing direction than 2Ls. In addition, finger rest part 2
It is desirable to arrange the finger hooks 2Rn, 2Ln closer to the guide mechanisms 6R, 6L, which will be described later, by providing steps at the upper ends of Rn, 2Ln and the upper ends of the clamping surfaces 2Rs, 2LS. On the other hand, on the bottom surfaces of the loading plates 2R, 2L, below the finger hooks 2Rn, 2Ln and the support portion 2Rt,
Below the 2Lt are circular guide protrusions 3] and R.
, 3IR, 31L, and 31L are provided integrally.

On the other hand, in FIGS. 3 and 5, 41 is the casing 1
Figure 3 shows the chassis fixed to Figure 1.
5 shows a cross section taken along line X--X in FIG. 1, respectively.

The chassis 41 has the guide protrusions 31R...31L.
Guide holes (elongated holes) 32R13 into which ... are inserted respectively
2R, 32L, and 32L are provided in opposite directions.

These guide protrusions 31R... 31L... and guide holes 32R... 32L... are the guide mechanisms 6R, 6.
It forms part of L.

On the other hand, the interlocking mechanism 3 is disposed below the chassis 41.

This interlocking mechanism 3 includes a pair of L-shaped rack plates 4R, 4L and a pinion 5.

When assembling, as shown in FIG.
The loading plates 2R, 2L are placed on top of the guide protrusions 31R... 31L... and the guide holes 32R...
. . 32L, . R...
31. It is fixed to the lower end surface of L using screws 33. As a result, rack plate 4R,! L projects from the lower end of the loading plate 2R12L at right angles inward in the opposing direction. Moreover, each rack plate 4R, 4, L is spaced apart in parallel, and teeth portions 4R8, 4Li are formed on opposing sides. Then, a pinion 5 is interposed between each rack plate 4R and 4L at a central position between each loading plate 2R and 2L, and is meshed with each tooth portion 4Ri, 4Li, and a pinion 5 is provided on the lower surface of the chassis 41. Install so that it can rotate freely.

Furthermore, guide holes 34R, 34L are formed in the intermediate surface of each rack plate 4R, 4L, and guide protrusions 35R, 35L are provided in the lower surface of the chassis 41 to be inserted into the guide holes 34R, 34L. Note that these guide projections 35R, 35L and guide holes 34R, 34L are also part of the guide mechanism 6R.

It forms part of 6L.

Therefore, rack plates 4R, 4L and loading plate 2
R and 2L are supported by guide mechanisms 6R so as to be able to move in parallel in opposite directions.

On the other hand, a spring 7. is installed between each loading plate 2R and 2L.
7 and bias each loading plate 2R and 2L inward in the opposing direction, and if necessary, a guide tape 37 with a low coefficient of friction is pasted on the chassis 41 at a predetermined position, and the loading plates 2R, 2L are and rack plate 4R, 4
Make sure that L can slide smoothly.

Next, the overall operation of the label printer M including the function of the loading device 1 according to the present invention will be explained.

First, each loading plate 2R...- in the loading device l is connected to each of the three guide protrusions 3 in the guide mechanism 6R...
Guide hole 32R corresponding to 1R, 31R, 35R...
, 32R, 34R, . . . engage with each other, so that they can freely move in parallel in opposite directions. Furthermore, the interlocking mechanism 3 causes the loading plates 4R and 4L to interlock in symmetrical directions (see imaginary lines in FIG. 1).

Therefore, by hooking a finger on the finger hook 2Rn of one of the loading plates, for example 2R, and moving the loading plate 2R outward in the opposing direction, the roll paper P can be loaded between the loading plates 2R and 2L. Note that the roll paper P can be loaded by opening the open/close cover 14 provided on a part of the upper surface portion 11U of the casing 11.

The loaded roll paper P is placed on the left and right loading plates 2R and 2L.
The clamping surfaces 2Rs, 2Ls and the support parts 2Rt, 2L in
t, and a predetermined tension is applied by the clamping surfaces 2Rs and 2Ls of the loading plates 2R and 2L.

On the other hand, the roll paper P fed out from the loading device 1 is transferred to the guide roller 26, platen roller 22 and thermal head 23.
It is loaded into the separator bin 24 by passing through the gap. and,
The continuous mount B is further passed through the transfer roller mechanism 25,
The paper is discharged to the outside from the mount discharge port 17. At this time, since the conveyance direction of the continuous mount B changes approximately perpendicularly by the separator bin 24, the recording label Le that has passed through the separator bin 24 is peeled off from the continuous mount B as shown in FIG. Up to 16 are sent out.

Normally, the recording label Le is stopped at a predetermined position of the label outlet 16, so the optical sensor 27 is in a detection state, and the label printer M maintains that state. In this case, only the rear portion of the recording label Le is stuck to the continuous mount B (see FIG. 5).

On the other hand, if the recording label Le at the label outlet 16 is pulled up by hand and removed from the continuous mount B, the optical sensor 27 will be in a non-detecting state. As a result, the platen roller 22 and the transfer roller mechanism 25 operate, the continuous mount B is forwarded, and the thermal head 23 performs a predetermined recording (thermal recording) on the label Lo. And record label L
e is advanced to a predetermined position of the label outlet 16, and the operation is stopped.

Although the embodiments have been described in detail above, the present invention is not limited to such embodiments, and the detailed configuration,
The shape etc. can be arbitrarily changed without departing from the gist of the present invention.

〔Effect of the invention〕

As described above, the roll paper loading device according to the present invention includes a pair of opposing left and right loading plates, an interlocking mechanism having a pair of rack plates and pinions that interlock each loading plate, and a rack plate and/or a loading plate. It is equipped with a guide mechanism that supports the loading plate so that it can move in parallel, and a spring that biases each loading plate inward in the opposite direction.
It has the following remarkable effects.

(2) It becomes extremely easy to load roll paper into the interlocking mechanism, and the structure can be simplified because it also has the function of applying tension to the roll paper.

Moreover, it can be accurately adapted to various types of paper with different paper widths, making it particularly suitable for use in frequently used label printers that have many paper widths.

■ The finger hook provided on the loading plate makes loading the roll paper extremely easy, and further improves usability and convenience.

[Brief explanation of drawings]

Fig. 1: A plan view of the loading device according to the present invention, Fig. 2: A plan view extracting and showing only the interlocking mechanism in the loading device, Fig. 3: A cross section taken along line x-X in Fig. 1 of the loading device. 4: A perspective view of a loading plate in the loading device; FIG. 5; 7 an internal configuration diagram showing the main parts of the label printer, including a cross section taken along line Y-Y in FIG. 1, equipped with the loading device; Figure 6.7 Appearance perspective view of the label printer 1. In the drawing: 1. Loading device 2R, 2L: Loading blur -1, 2Rs
, 2Ls: holding surface 2Rt 2Lt: support portion 2Rn, 2Ln: finger rest portion 2Ro, 2N. , 0: Four parts 3, interlocking mechanism 4R, 4L: Rack plate 5: Pinion 6R, 61,, Ni guide mechanism 7.7: Spring P: Roll paper patent applicant Nagano Japan Radio Co., Ltd. agent patent attorney 2) Shigeru γ γ to 1 Figure 3 Figure 4 Figure 6

Claims (1)

[Scope of Claims] [1] A pair of opposing left and right loading plates each having a support portion that rotatably supports the roll paper on a holding surface that pinches both ends of the roll paper, and a pair of left and right loading plates facing each other from one end of each loading plate. a pair of rack plates protruding inward at right angles; an interlocking mechanism having a rotatable pinion disposed between each rack plate to mesh with each rack plate; and a rack plate and/or a loading plate in opposite directions. A roll paper loading device comprising a guide mechanism that supports parallel movement and a spring that biases each loading plate inward in opposing directions. [2] The roll paper loading device according to claim 1, wherein the loading plate is provided with a finger hook that is located outward in the opposing direction from the clamping surface and on which a finger can be hung. [3] The roll paper loading device according to claim 2, wherein the finger hook portion is formed by a recess provided in the clamping surface. [4] The roll paper loading device according to claim 1, wherein the roll paper loading device is installed in a label printer.