JPH0138105Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a roll paper setting mechanism for holding a cylindrically wound roll paper used in a telex printer and feeding the paper to the printer.

[Conventional technology]

The conventional technique will be explained with reference to FIGS. 14 and 15. FIG. 14 is a front view, and FIG. 15 is a side view. Reference numeral 1 denotes a base plate, and side frames 2a and 2b are integrally formed on both sides and stand upright. Bearing portions 3a, 3b are provided at the upper ends of the side frames 2a, 2b. 4 is a guide lever.

Such a stand is attached to the back of the printer 5, and the shaft 7 passing through the center of the roll paper 6 is locked to the bearings 3a and 3b, so that the roll paper 6 rotates and feeds the paper. be.

[Problems that this invention attempts to solve]

Most roll paper stands are usually optional, and must be removed from the printer during standard use or transportation. However, the roll paper stand occupies an excessively large volume during transportation, resulting in a large packaging volume, high transportation costs, and time-consuming problems.Furthermore, it requires a large storage space when not in use.

[Means for solving problems]

The present invention has locking holes provided on both sides of the rear of the upper surface of the printer's upper cover, and a bottom plate at the bottom that has a bearing section at the top and comes into contact with the top surface of the upper cover, and the locking hole is provided on the front side of the bottom plate. A pair of left and right side stands each having a locking pawl that locks into the hole and a holding portion that abuts the rear surface of the upper cover on the rear side of the bottom plate; It consists of a shaft rotatably held in a bearing part.

[Effect]

According to the above configuration, by locking the locking pawl of each side stand in the locking hole provided in the upper cover, and by bringing the holding part of each side stand into contact with the rear surface of the upper cover, By stably fixing a pair of side stands upright and holding a shaft passed through the center hole of the roll paper in the bearing part of the side stands, the roll paper can be set without protruding to the rear of the printer.

When the side stand is not used, such as during standard use of the printer, the side stand can be removed from the upper cover and stored in a small size.

〔Example〕

Embodiments of the present invention will be described below with reference to the drawings.

Figure 1 is a perspective view of the side stand showing the first embodiment, Figure 2 is a perspective view of the upper cover, and Figure 3 is a perspective view of the upper cover.
The figure is a side view of the side stand, Figure 4 is a sectional view showing the locking hole provided in the upper cover, Figure 5 is a side view showing the side stand locked in the locking hole, and Figure 6 is a side view of the side stand. FIG. 7 is a side view of the roll paper fixed to the upper cover, and a perspective view of the roll paper attached to the printer. In the figure, 8 is a printer, 9 is an upper cover of this printer 8, and 10 is a locking hole formed on both sides of the rear upper surface of this upper cover, from which a locking protrusion 11 projects toward the rear. .

Reference numeral 12 designates a pair of left and right side stands, each of which has a bottom plate 14 at the bottom of each frame 13, and a locking pawl 15 at one end of the lower side that locks into the locking hole 10.
A holding portion 16 is bent at the other end.

17 is a leaf spring provided inside one side stand 12 (on the right side in FIG. 1), and 18 is a bearing portion provided on both side stands 12.

19 is a roll paper; 20 is a shaft that passes through the center hole of the roll paper 19; a pressing protrusion 21 is engaged with the center hole of the roll paper 19 so that the shaft 20 and the roll paper 19 rotate together; It is formed.

According to the above structure, when the side stand is moved in the direction of arrow A after the locking pawl 15 of the side stand 12 is fitted into the locking hole 10 of the upper cover 9 as shown in FIG. Stopping edge 11
In this state, the upper cover 9 is further rotated in the direction of arrow B, and the holding part 16 is brought into contact with the rear end corner of the upper cover 9. Attach it with scissors,
The side stand is fixed so that it will not come off even if the roll paper is pulled by the printer.

On the other hand, the shaft 20 is press-fitted into the center hole of the roll paper 19 to make it integral. When both ends of this shaft 20 are fitted into the bearings 18 of the side stand 12, the plate spring 17 provided on one side stand 12 applies resistance to the side surface of the roll paper 19, and the roll paper 19 is pulled out by the printer 8. When the roll paper 19 rotates too much, the roll paper 19 rotates more than necessary.
The roll paper 19 is supported in such a way as to prevent it from being fed out and to bring the roll paper 19 closer to the reference position (in this embodiment, to the left in the drawing).

Note that in the above embodiment, the holding portion 16 may not be provided, and the holding portion 16 may be secured by the locking pawl 15.

FIG. 7 shows a second embodiment, in which the holding part 16
A hook 21 may be formed at the tip of the upper cover 9, and the hook 21 may be hooked into a holding hole 22 formed on the back surface of the upper cover 9.

With this configuration, when the side stand 12 is fixed to the upper cover 9, the locking claw 15 locks into the locking protrusion 11 of the locking hole 10, and the hook 21 of the holding part 16 locks into the holding hole 22. This makes it even more secure.

Next, a third embodiment will be described. 9 is a perspective view showing the upper cover, FIG. 10 is a perspective view showing the side stand and the shaft, and FIG. 11 is a perspective view showing the side stand attached to the upper cover, one side of the upper cover 9. Two locking holes 10a and 10b (three or more may be provided) are provided on the right side (in this embodiment), and the bearing portion 18a of the side stand 12 to be attached to one side has a U-shaped side wall removed. The shaft 20 is also made longer at one end.

With this configuration, the locking hole 10 for locking the side stand 12 is formed in accordance with the width of the roll paper 9.
By selecting and locking a and 10b, it is possible to accommodate a plurality of types of roll paper.

12 and 13 show the fourth embodiment, FIG. 12 is a perspective view of the side stand, and FIG. 14 is a perspective view of the side stand.
The figure is a perspective view showing a state in which the side is locked to the upper cover.

In the figure, reference numeral 23 denotes a side stand formed by bending a rod, and one end 24 of both side stands 23 is passed through the center hole of the roll paper 19 so that it also serves as the shaft 20. The other end 25 is a locking pawl that fits into an internal groove 27 of a locking groove 26 bent in the upper cover 9.

According to the above configuration, the end portion 25 is fitted into the internal groove 27 of the locking groove 26 of the upper cover 9, and the bent bottom portion 23a of the side stand 23 is fitted into the locking groove 26 of the upper cover 9. 9, the end 24 of the side stand 23 is passed through the center hole of the roll paper 19 to hold the roll paper 19, and the elasticity of both side stands 23 is used to sandwich the roll paper 19, so that the roll paper 19 is unrolled when the roll paper 19 is fed out. To prevent over-rotation of paper 19 and to prevent excessive feeding.

[Effect of idea]

According to the present invention described in detail above, locking holes are provided on both sides of the upper rear surface of the upper cover, and locking claws that lock into the locking holes and holding portions that abut against the rear surface of the upper cover are formed on the left and right sides. Since the pair of side stands are each fixed upright on the upper surface of the upper cover, the roll paper can be set without protruding to the rear of the printer. Further, when the side stand is removed from the upper cover during standard use of a printer that does not use roll paper, the side stand becomes small, so it does not get in the way during storage or transportation.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of the side stand according to the first embodiment of the present invention, Fig. 2 is a perspective view of the upper cover, Fig. 3 is a side view of the side stand, Fig. 4 is a side view of the locking hole, and Fig. 5 is a side view of the side stand. The figure is a side view of the side stand attached to the upper cover, FIG. 6 is a side view of the side stand in a fixed state, FIG. 7 is a perspective view of the fixed state, and FIG. 8 is a perspective view of the second embodiment. FIG. 9 is a perspective view of the upper cover of the third embodiment;
Figure 10 is a perspective view of the side stand and shaft, Figure 11
12 is a perspective view of the fourth embodiment, FIG. 13 is a perspective view of the side stand fixed to the upper cover, and FIG. 14 is a front view of the conventional example. Figure 15 is a side view. 9... Upper cover, 10... Locking hole, 11
...Latching ridge, 12...Side stand, 13...
...Frame, 14...Bottom plate, 15...Latching claw, 1
7...Plate spring.

Claims (1)

[Claim for Utility Model Registration] A roll paper setting mechanism for setting roll paper to be fed into a printer, which has locking holes provided on both sides of the rear upper surface of the printer's upper cover and a bearing section at the top. At the same time, a bottom plate is provided at the bottom that contacts the top surface of the upper cover, and a locking pawl that locks into the locking hole is formed on the front side of the bottom plate, and a locking pawl that locks in the locking hole is formed on the rear side of the bottom plate, and a locking claw that locks in the locking hole is formed on the front side of the bottom plate, and a locking claw that locks in the locking hole is formed on the rear side of the bottom plate. A roll paper setting mechanism comprising: a pair of left and right side stands each having a holding portion that abuts the roll paper; and a shaft that passes through a center hole of the roll paper and is rotatably held in a bearing portion of each of the side stands.