JPH065896Y2 - Medium transport device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a medium transport device for transporting a continuous long medium having folds (continuous folded paper provided with perforations for each predetermined length). It is about.

FIG. 4 is a perspective view of a printing device to which a medium transporting device for transporting continuous folded sheets is applied.

In the figure, 30 is a printing section using a type belt, 6 is an ink ribbon, 32 is a medium transport device, 33 is an upper cover, 34 is an opening / closing door, and 26 and 27 are paper feeds that constitute the medium transport device 32. Mechanism 28 is a paper feed mechanism 26, 2
7 is movably provided in the axial direction, and is spline shaft rotated by a motor (not shown), 36 is a guide ring for guiding the continuous folding paper, 37 is a guide ring
6 is a spring for arranging the paper feed tractors 15 at equal pitch intervals.

5 and 6 show the printing unit 3 of the printing apparatus shown in FIG.
It is a figure for demonstrating 0.

In FIG. 5, reference numeral 1 is a drive pulley, which is rotationally driven by a drive motor 2 via a belt 3 in a direction indicated by an arrow A in the figure. Reference numeral 4 is an idler pulley, and 5 is a type belt having a plurality of type characters 18 on its surface and clock marks (not shown) provided corresponding to the type characters 18. The type belt is wound between the drive pulley 1 and the idler pulley 4. Mounted, and the symbol B in the figure accompanies the rotation of the drive pulley 1.
Move in the direction of the arrow.

Reference numeral 6 denotes an ink ribbon, which is conveyed in correspondence with the conveyance of the type belt 5, and is sequentially folded and stored in the ribbon case 12 by the take-in roller 11. 7 is the platen, 8
Is a hammer provided along the print line direction, for example, 136 hammers, and 9 is a magnet provided corresponding to the hammer 8 and driving the hammer 8 by being excited based on a signal from a host device. Reference numeral 10 is a continuous folding paper having perforations for each predetermined length.

In FIG. 6, 7 is a platen, 5 is a printing belt, 6 is an ink ribbon, 8 is a hammer, 9 is a magnet, and 10 is continuous folding paper. 13 is an ink ribbon separator, 1
4 is a stopper and 19 is a return spring. Reference numeral 15 denotes a state in which a plurality of tractor pins 20 are provided on the peripheral surface, and the tractor pins 20 are engaged with the paper feed holes provided in the continuous folding sheet 10 by being rotationally driven by a motor 17 via a belt 16. Is a paper feed tractor that conveys the continuous folding paper 10 from the supply side C to the discharge side D. Reference numeral 24 denotes a brake mechanism for preventing the continuous folding paper 10 from sagging at a position where the character 18 and the hammer 8 face each other and always applying a constant tension to the continuous folding paper 10. A spring that presses against the member 23, a pad that sandwiches the continuous folding paper 10 between the member 23, and a member 2 that is provided in a device casing (not shown).
It consists of 3.

In the configuration described above, the hammer 8 is driven by exciting the magnet 9 based on the signal from the host device, and the continuous folding paper 10 is struck by striking the type 18 at a position facing the hammer 8. Print. The continuous folding paper 10 on which one line has been printed is intermittently fed line by line by the paper feed tractor 15 and fed to the discharge side D, and is cut into individual sheets by a post-processing device (not shown).
Alternatively, it is folded and stored in the stacker.

[Prior art]

FIG. 7 is a diagram for explaining a medium carrying device 32 that has been conventionally used in a printing device.

In the figure, reference numerals 26 and 27 denote paper feed mechanisms having a tractor pin 20 and a paper feed tractor 15, respectively, and 28 supports the paper feed mechanisms 26 and 27, which are rotated by a motor 17 shown in FIG. A spline shaft for rotating the feed tractor 15 to convey the continuous folded paper 10 having a paper feed hole that engages with the tractor pin 20 to the discharge side indicated by the symbol D in FIG. 6, 29 is the paper feed mechanism 2
6 and 27 are continuous knobs 1 of the paper feed mechanisms 26 and 27, which are knobs provided on the paper feed mechanism 26 and 27.
This is for positioning the position of 0 in the width direction.

Reference numeral 36 denotes a guide ring, which causes misalignment due to paper wrinkles in the central portion when the wide continuous folding sheet 10 having perforations is conveyed by the medium conveying device 32, or coloring when carbon paper is used. It is provided to prevent such problems.

Reference numeral 37 is a spring, and a plurality of (three in the figure) guide rings 36 are set at equal pitches between the paper feed mechanisms 26 and 27.

[Problems to be solved by the invention]

In the medium transporting device having such a configuration, when the width of the continuous folding paper 10 is narrow (for example, 3 inches), it is necessary to shift the paper feeding mechanisms 26 and 27 to the width of 3 inches.
Since there is the guide ring 36 and the spring 37, there is a drawback that the guide ring 36 and the spring 37 cannot be brought close to this width.

[Means for solving problems]

SUMMARY OF THE INVENTION The present invention provides a medium transport device that can solve the above-mentioned problems and can transport continuously folded sheets of various widths. A medium provided with at least two medium transport tractors that are movable in the axial direction and that transport the continuous long medium, and a guide member that guides the continuous long medium between the medium transport tractors. In the transport device, the guide member is provided at a guide portion formed along a transport path along which the medium transport tractor transports the continuous long medium, and at both end sides of the guide portion. An engaging portion sandwiched between locking portions provided on the guide portion, and a concave portion provided on one end side of the guide portion and into which a finger is inserted, and further between the engaging portions of the guide portion. Make sure that the sandwiched part has elasticity The engaging portion is formed by pressing the concave portion and the other end side of the guide portion with fingers and bending the engaging portions so as to approach each other. It is a medium carrying device characterized in that a joining portion is made detachable.

[Action]

The medium conveying device is configured such that a guide member for guiding the continuous folding sheet is detachable from the main body of the apparatus, so that when the continuous folding sheet having a narrow width is used, it is located outside the paper feeding mechanism (the continuous folding sheet). It is attached to the paper feed mechanism when a wide continuous folded paper is used.

As a result, sheets of various widths can be conveyed.

〔Example〕

Hereinafter, an embodiment of a medium carrying device according to the present invention will be described in detail with reference to the drawings.

First, the structure of the guide member will be described with reference to FIGS. 1 and 2.

FIG. 1 is a perspective view of the guide member, FIG. 2 (a) is a view seen from the arrow direction shown by symbol X in FIG. 1, and FIG. 2 (b) is a view from the arrow direction shown by symbol Y in FIG. The view seen, FIG. 2 (c), is a view seen from the direction of the arrow indicated by symbol Z in FIG.

In the figure, 39 is a guide member, U is a guide part, and the paper feed tractor 15 is provided on the upper surface of the continuous folding paper 10
Is a curved surface formed along the transport path for transporting. As will be described later, this guide portion serves as a guide for transporting the continuous folding paper 10 in substantially the same manner as the paper feed tractor 15 when the guide member 39 is attached to the apparatus main body. Further, in the figure, T and S are projecting portions provided so as to project from the guide portion U, respectively.
The space R is provided so as to sandwich the spline chat 28. Further, the protrusions T and S are provided with engaging portions P and Q that engage with the apparatus main body, respectively. O is an elastic portion, and the index finger, the middle finger, and the ring finger are applied to the recess 43, and the thumb is applied to the flat portion 44 of the guide portion U, and a force is applied in the arrow directions indicated by the symbols M and N in the figure. By pressing, the guide portion U can be further curved, and the engaging portions P and Q provided on the projecting portions T and S can be engaged with the locking portions provided on the device main body to be described later.

FIG. 3 is a diagram for explaining the medium carrying device equipped with the guide member 39 shown in FIGS. 1 and 2.

In the figure, the same parts as those in FIG. 6 are designated by the same reference numerals. Further, 39 is a guide member, 40 is a frame, 41 is a frame 40, and is a locking portion that engages with the engagement portion P of the guide member 39, and 42 is an engagement portion that engages with the engagement portion Q of the guide member 39. It is a stop.

In the configuration shown in the figure, the guide member 39 is attached to the frame 40 by, after the curved guide portion U of the guide member 39 is further curved, as described in FIG.
This is done by inserting it into the part 42.

As described above, the guide member 39 is configured to be bendable at the elastic portion O and can be attached to and detached from the apparatus main body. Therefore, in the case of wide paper, the paper feed mechanism 26,
By arranging a plurality of guide members 39 between 27, the conveyance of the paper in the vicinity of the central portion can be made substantially the same as the conveyance by the paper feed tractor 15, and print misalignment in the printing unit and carbon paper can be prevented. It is possible to prevent color development when used, etc., and in the case of narrow width paper, by setting it outside the paper feed mechanism, it is possible to bring the paper feed mechanism up to a predetermined width. It is possible to carry a sheet having a width of.

Further, as described above, the guide member 39 can be set in the apparatus main body outside the paper feeding mechanism when a narrow paper is used, and therefore the guide member 39 is not lost. Further, in the case of partially different paper thicknesses, it is possible to arbitrarily set the paper at a place where paper wrinkles are likely to occur, and the reliability of paper feeding can be further improved.

Further, since the guide member 39 is provided with the concave portion 43, the guide member 39 can be easily inserted by simply inserting the finger into the concave portion 43, and the finger is inserted into the concave portion 43 when engaging with the apparatus main body. Then, it can be bent easily by sandwiching it with the flat portion 44, and the attaching / detaching operation can be easily performed.

Incidentally, this concave portion becomes the lower surface of the sheet conveying path, and there is no hindrance to the sheet conveying.

[Effect of device]

As described above, according to the present invention, it is possible to convey sheets of various widths.

Further, according to the present invention, the guide member can be removed from the medium carrying device at any position.

[Brief description of drawings]

1 and 2 are explanatory views of the guide member, FIG. 3 is FIG.
FIG. 4 is an explanatory view of an embodiment of a medium carrying device according to the present invention equipped with the guide member 39 shown in FIG. 2, FIG. 4 is an explanatory view of a printing device to which the medium carrying device is applied, FIG. 5, FIG. FIG. 4 is an explanatory view of a printing section of the printing apparatus shown in FIG. 4, and FIG. 7 is an explanatory view of a conventional medium conveying apparatus. In the figure, 10 is a continuous folding paper, 15 is a paper feed tractor, 26 and 27 are paper feed mechanisms, 28 is a spline shaft, 39 is a guide member, 40 is a frame, 41 and 42 are locking parts, and U is a guide part. , T and S are projecting portions, P and Q are engaging portions,
O is an elastic part.

Claims (1)

[Scope of utility model registration request] 1. A continuous length between at least two medium transport tractors, which are provided so as to be movable in the axial direction with respect to a rotationally driven shaft, and transport a continuous long medium, and the continuous length between the medium transport tractors. A guide member for guiding the length medium, a guide member formed along a conveyance path for conveying the continuous long medium by the medium conveyance tractor, An engaging portion is provided at both ends of the guide portion and is sandwiched between locking portions provided in the medium conveying device body, and a recess portion is provided at one end side of the guide portion and a finger is inserted. Further, the portion of the guide portion sandwiched between the engaging portions is configured to have elasticity, and the concave portion and the other end side of the guide portion are sandwiched and pressed by a finger to press both engaging portions. By bending in the approaching direction, A medium carrying device, wherein the engaging portion is attachable to and detachable from a locking portion of a mounting body.