JP2513746Y2 - Paper guide device for printer - Google Patents

Description

TECHNICAL FIELD The present invention relates to a paper guide device for a printer.

2. Description of the Related Art Conventionally, there is a printer in which a continuous paper sheet having a large number of holes formed at equal pitches on both sides and a single-cut sheet are selectively used. This conventional example is continuous paper 100
When using, the legs 102 of the separating body 101 formed by wires are mounted in the holes 104 formed on both sides of the printer casing 103, and the plurality of guide rollers 105 provided on the rear side of the upper face of the casing 103. It guides the continuous paper 100, separates the paper feed side and the paper discharge side of the continuous paper 100 by the separating unit 106 of the separating body 101, and removes the separating body 101 from the housing 103 when using a single-cut form. is there. A tractor 107 that feeds the continuous paper 100, a platen 108, and a print head 109 are provided inside the housing 103, and a tractor cover 110 at the top of the housing 103 has a paper feed port 111.
Are formed.

Problems to be Solved by the Invention The operation shown in FIGS. 5 and 6 is troublesome because the separator 101 is attached and detached according to the purpose of use. Further, a space for storing the separation body 101 removed from the housing 103 is required, and there is a risk of loss. Further, since the separating body 101 is formed of a wire, it has insufficient rigidity, and when detached from the housing 103, it is deformed by an external force if the storage state is poor. Furthermore, the separator 101 must be separately packaged at the time of transportation, so that the packing appearance becomes large, and the amount of packing material and the packing cost increase. In order to prevent the interference between the separating portion 106 of the separating body 101 and the guide roller 105, the separating body 101 has to be positioned above the guide roller 105, and therefore the overall height dimension becomes high.

Means for Solving the Problems A housing in which a printing unit and a tractor are incorporated is provided, and an opening in which a tractor cover is detachably fitted is formed on the upper surface of the housing, and at the rear of the opening. A plurality of guide rollers abutting on the continuous paper are rotatably arranged at intervals along the width direction of the continuous paper, and the continuous paper is provided between the rear portion of the tractor cover and the opening of the housing. A plurality of separating portions that form a paper passage corresponding to the width and are located on a substantially horizontal extension surface that passes through the space between the guide rollers are arranged along the width direction of the continuous paper and are the outermost. A separating body which is connected to the outside of the separating portion and has a pair of left and right legs extending along both sides of the continuous paper, and sliding holding portions which hold the legs in a retractable manner on both sides of the tractor cover. It was

Action Since the legs of the separator are held and stored in the sliding holding part of the tractor cover so that they can be pulled out freely, it is possible to omit the attachment / detachment, secure a storage space for the separator, and separate the separator by external force. Can be prevented from being deformed or lost, and further, since the separating portion is arranged on the substantially horizontal extension surface of the space portion passing between the plurality of guide rollers,
Even if the separating body and the guide roller are arranged in a plane of the same height, it is possible to prevent interference between the guiding roller and the separating portion when the separating body is housed inside the tractor cover. It is possible to reduce the packaging material, and since it is not necessary to separately package the separator, it is possible to reduce packaging materials.

Embodiment An embodiment of the present invention will be described with reference to FIGS. FIG. 3 is an exploded perspective view, in which 1 is a housing. The case 1 is formed by combining a base cover 2 and a top cover 3, a keyboard 4 and a display unit 5 are arranged on the front surface of the case 1, and a tractor 6 and an upper part of a platen described later are arranged on the upper surface. A large opening 7 for opening is formed, and a plurality of guide rollers 16 are rotatably arranged at predetermined intervals on the axis of the left-right direction. The tractor 6 and the platen are held on both sides of a metal frame 8 provided inside the housing 1. The tractor cover 9 covering the opening 7 has an expanding portion 10 supported on both sides of the upper surface of the casing 1, a sheet feeding port 11 on an elongated rectangular tube opening above the platen, and a periphery of the support base 12. And a fitting portion 13 in which the fitting portion 13 is detachably fitted, and a projection 15 fitted in a vertically elongated recess 14 formed on both outer surfaces of the support base 12 is formed on both inner side surfaces of the fitting portion 13. Are formed. Further, a plurality of separating portions 18 located on an extended surface in a substantially horizontal direction passing through the space between the guide rollers 16 are arranged along the width direction (horizontal direction) of the continuous paper described later and at the outermost side. The tractor cover 9 holds a separator 17 having a pair of left and right legs 19 which are connected to the outside of the separating section 18 and are located on both sides of the continuous paper. Bends at the tips of the left and right legs 19
20 are formed. Further, the locking spring 21 attached to the inner surface of the expanded portion 10 of the tractor cover 9 has a locking piece 22.
And a contact piece 23. Furthermore, the tractor cover 9
A pair of left and right mounting springs for detachably mounting the
24 are provided. Each of these mounting springs 24 has a mounting leg 25 held by the tractor cover 9, an elastic piece 26, and a contact piece 27 located at an intermediate portion between the two. Metal support shafts 28 that engage with the elastic pieces 26 are erected on both inner side surfaces of the frame 8.

FIG. 4 is an enlarged perspective view showing a state in which the bottom surface of the tractor cover 9 is directed upward. As is clear from this figure, the leg 19 of the separating body 17 is on a straight line passing through both outer sides of the paper feed port 11 and is integrally formed inside the expanding portion 10 as a slide holding portion 29. It is held so that it can be pulled out freely. These slide holding portions 29 have elasticity and a part of the outer periphery is cut out. Therefore, the legs 19 can be engaged and disengaged by elastically deforming the slide holding portions 29 by an external force.
In addition, the inner surface of the expanded portion 10 abuts against the legs 19 and
A boss 30 is formed to support the from below. These legs 19
The bent portion 20 is elastically engaged with the locking piece 22 of the locking spring 21.

FIG. 1 is a vertical sectional side view showing a state in which the continuous paper 33 is used, and FIG. 2 is a vertical sectional side view in a state in which a cut sheet 35 is used. As shown in these figures, inside the housing 1, a print head 31, which is a printing unit, a platen 32, a guide plate 34 that guides a continuous paper 33 to the platen 34, and a single-cut sheet 35. A guide plate 36 that guides the platen 32 via 34 is provided. The mounting spring 24 is the tractor cover 9
Are inserted into the square holes 37 formed on both sides of the sheet feeding device, the contact pieces 27 contact the base of the sheet feeding port 11, and the tips of the mounting legs 25 are elastically engaged with the tips of the side walls of the sheet feeding port 11. There is. Also, the mounting spring 24
Elastic means 26 elastically engages the lower surface of the support shaft 28, and the tip 38 of the tractor cover 12 abuts on both sides of the front edge of the opening 7 of the housing 1 by means such as. Is the case 1
It is detachably held. In this attached state,
A horizontally long paper path 39 is formed between the rear of the opening 7 of the housing 1 and the rear of the tractor cover 9. Further, the tractor cover 9 is provided with a support portion 40 located near the paper feed port 11 and detachably holding the support base 12. The support portion 40 includes a support wall 41 that supports the support base 12 in a rearwardly tilted posture, and a support base 41 that faces the support wall 41.
The claw portion 42 elastically engages with the edge of the twelve.

In such a configuration, when the continuous paper 33 is used, the tractor cover 9 is removed from the housing 1, the continuous paper 33 is guided from the rear of the housing 1 through the tractor 6 to the front surface of the platen 32, and then the first paper. As shown in the figure, the tractor cover 9 is attached to the opening 7 of the housing 1. Subsequently, the separating body 17 is pulled out rearward to engage the bent portion 20 and the locking piece 22, and the leg 19 is supported by the boss 30 of the tractor cover 9 from below to maintain the guide state. Then, by driving the tractor 6 and the platen 32, the continuous paper 33 is fed while changing its direction from the guide roller 16 so that the continuous paper 33 after printing is fed to the front edge 38 of the opening 7 and the tractor cover 9. It is discharged from the slit 43 formed between the front edge of the separating member 18 and the supporting base 12 fitted to the fitting portion 13 of the tractor cover 9, and is passed downward from above the separating portion 18 of the separating body 17. Drop it. This separation section 18
This prevents contact between the paper feed side and the paper discharge side of the continuous paper 33. In this usage mode, a paper feed port for feeding the single-cut sheet 35
Since 11 is blocked by the support base 12, the noise that drives the tractor 6 is unlikely to leak to the outside. In addition, the separator 17 and continuous paper
Static electricity generated by contact with 33
It is possible to escape from 22 to the frame 8 via the contact piece 23, the contact piece 27, the elastic piece 26, and the support shaft 28.

When using the single-cut sheet 35, as shown in FIG.
17 is pushed from the rear side to release the engagement between the bent portion 20 and the locking piece 22 of the locking spring 21 to store the leg 19 of the separating body 17 inside the expanding portion 10 and the support base 12 Protrusion while pulling backward
It is moved rearward and upward with 15 as the center, and the end portion is engaged between the support wall 41 and the claw portion 42 of the tractor cover 9. in this way,
The cut sheet 35 is inserted into the paper feed port 11 from the support table 12 which is maintained in the tilted posture, and the cut sheet 35 is discharged from the feed slit 43 by the platen 32.

As described above, since the separating body 17 is housed in the tractor cover 9 so as to be freely drawn out, the attaching / detaching operation can be omitted, a storage space for the separating body 17 can be secured, and the separating body 17 by an external force can be secured. It is possible to prevent deformation and loss of the. In addition, the separating body 17
Since it can be pulled out or stored, operability is improved. Further, the support base 12 and the separating body 17 are held by the tractor cover 9, but only the leg 19 of the separating body 17 is cut as a single sheet.
It can be positioned outside the path of 35 and held by the slide holding portion 29 of the tractor cover 9, and the separating portion 18 is arranged on a substantially horizontal extension surface that passes through the space between the guide rollers 16. Therefore, even if the separating body 17 and the guide roller 16 are arranged in a plane having the same height, the separating body 17 can be provided with the tractor cover 9
It is possible to prevent interference between the separating portion 18 and the guide roller 16 when they are housed in. Therefore, the overall height can be reduced, and further, since it is not necessary to individually package the support base 12 and the separating body 17, it is possible to reduce packaging materials.

Effect of the Invention Since the present invention is configured as described above, since the legs of the separating body are held and housed in the sliding holding portion of the tractor cover so as to be freely drawn out, the detaching operation is omitted and the storage space for the separating body is omitted. It is possible to secure the shape of the separation body and prevent the separation body from being deformed or lost due to an external force. Furthermore, the separation portion is arranged on a substantially horizontal extension surface of the space portion passing between the plurality of guide rollers. Therefore, even if the separating body and the guide roller are arranged in a plane of the same height, it is possible to prevent the guiding roller and the separating portion from interfering with each other when the separating body is stored inside the tractor cover. In addition, the overall height can be reduced, and since it is not necessary to separately package the separator, it is possible to reduce packing materials.

[Brief description of drawings]

1 to 4 show one embodiment of the present invention.
FIG. 1 is a partial vertical side view showing a state where continuous paper is used, FIG. 2 is a partial vertical side view showing a state where a single-cut sheet is used, FIG. 3 is an exploded perspective view, and FIG. FIG. 5 is a perspective view of the tractor cover seen from the bottom, FIG. 5 is a perspective view showing a conventional example, and FIG.
The figure is a vertical side view. 1 ... Housing, 6 ... Tractor, 7 ... Opening, 9 ... Tractor cover, 16 ... Guide roller, 17 ... Separation body, 18 ...
… Separation part, 19 …… Leg, 29 …… Sliding holding part, 31 …… Printing part, 33 …… Continuous paper, 39 …… Paper path

Claims (1)

(57) [Scope of utility model registration request] 1. A housing having a printing section and a tractor built therein is provided, an opening is formed on the upper surface of the housing in which a tractor cover is detachably fitted, and a continuous sheet is formed behind the opening. A plurality of abutting guide rollers are rotatably arranged at intervals along the width direction of the continuous paper, and the width of the continuous paper is set between the rear portion of the tractor cover and the opening of the housing. A plurality of separating portions, which form corresponding sheet passages and are located on an extended surface in a substantially horizontal direction that passes through the space between the guide rollers, are arranged along the width direction of the continuous sheet and located on the outermost side. A separating body having a pair of left and right legs connected to the outside of the separating unit and extending along both sides of the continuous paper is provided, and sliding holding units for holding the legs in a retractable manner are provided on both sides of the tractor cover. Of the printer characterized by Paper guide device.