JP2630248B2 - Printing equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a printing apparatus, and more particularly, to a paper feeding apparatus for conveying a recording medium to a printing mechanism.

[0002]

2. Description of the Related Art Conventionally, this type of printing apparatus comprises a printing mechanism 1 and a paper feeding mechanism 2, as shown in FIG. In the paper feed mechanism 2, a case 4 for loading the recording medium 3 is provided.
A roller 5 for separating and transporting the recording medium 3, and a guide 6 for guiding the transported recording medium 3 to the printing mechanism 1.
And a cover 9 that can be opened and closed to remove the recording medium 3 that has been transported incorrectly. The case 4 is moved by the rail 7 and the roller 8.

The recording medium 3 loaded in a case 4 in the paper feed mechanism 2 is sent out by a roller 5 in the same paper feed mechanism 2 and is conveyed to the print mechanism 1 via a guide section 6. Is done.

[0004] However, if a transport error occurs while reaching the printing mechanism 1, the recording medium 3 stops in the middle of the guide section 6. In order to remove the stopped recording medium 3, the cover 9 at the rear of the guide unit 6 is opened, and the stopped recording medium 3 is removed by inserting a hand.

[0005]

However, in the above-described conventional printing apparatus, when a recording medium having a transport error is removed by opening and closing the cover, it is difficult to insert a hand depending on the stop position of the recording medium. There was a point.

Further, when the recording medium is removed while being pulled out, there is a problem that the recording medium is broken and a part thereof remains in the sheet feeding mechanism.

Therefore, the present invention solves such a problem, and provides a mechanism for interlocking a case and a guide so that a user can easily remove a recording medium when the recording medium is not transported. It is another object of the present invention to provide a printing apparatus capable of removing a recording medium remaining in a guide section.

[0008]

In order to achieve the above object, a printing apparatus according to the present invention has a printing mechanism for printing on a recording medium, a case for loading the recording medium, and a recording medium loaded on the case. And a guide unit for guiding the recording medium separated by the rollers to the printing mechanism unit. A protrusion provided near the case and protruding above the guide portion, and a shaft provided perpendicular to the protrusion,
A locking portion that is rotatably joined to the end opposite to the protruding portion of the shaft and that engages with the guide portion when the recording medium is not transported and engages with the case when the recording medium is transported. ing.

[0009]

Next, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a configuration diagram of a printing apparatus showing one embodiment of the present invention, FIG. 2 is a perspective view showing positions of a detection lever 24 and an arm 25 when the recording medium 3 is not conveyed, and FIG. FIG. 4 is a perspective view showing the positions of the recording medium 3 on the detection lever 24 and the arm 25 when the recording medium 3 is being conveyed.

In FIG. 1, the printing apparatus comprises a printing mechanism 1 for printing on a recording medium 3 and a paper feeding mechanism 2 for transporting the recording medium 3 to the printing mechanism 1.

Inside the paper feed mechanism 2, a case 4 on which the recording medium 3 is loaded, a roller 5 for peeling the recording medium 3 loaded on the case 4 and sending it to the printing mechanism 1,
A guide section 6 for guiding the peeled recording medium 3 to the printing mechanism section 1;

The guide portion 6 is integrally formed in the vicinity of the case 4 and is provided so as to protrude above the guide portion 6, a shaft 21 provided perpendicular to the protrusion 20, and a shaft 21. Is rotatably joined to the end opposite to the protruding portion 20, and engages with the guide groove 11 provided in the guide portion 6 when the recording medium is not transported, and is provided in the case 4 when the recording medium is transported. And a locking portion 22 that engages with the case groove 10 provided.

An engaging portion 22 is provided at one end of the back plate 23 which abuts on the shaft 21 and rotates along the shaft 21, and is provided at one end of the back plate 23 and engages with the guide groove 11 of the guide portion 6. It has a lever 24 and an arm 25 provided at the other end of the back plate 23 and engaging with the case groove 10 of the case 4. The back plate 23, the detection lever 24, and the arm 25 are integrally formed. The detection lever 24 and the arm 25 are respectively formed perpendicular to the back plate 23, the detection lever 24 is formed in the direction of the case 4, and the arm 25 is formed in the direction of the guide portion 6, and have a hook shape. Detection lever 2
4 is rotatably joined to the end of the shaft 21 opposite to the protruding portion 20 and is located on the conveyance path of the recording medium 3. When the recording medium 3 is not fed, the detection lever 24 is engaged with the guide groove 11 by its own weight.

The case 4 and the guide portion 6 include a roller 8 attached to both sides of the case 4 and one side surface of the guide portion 6 so as to rotate itself.
And a rail 7 provided so as to cover the A roller 8 rolls on the rail 7 and the case 4 or the guide 6 moves along the rail 7.

Here, the operation of the present invention in the above configuration will be described with reference to FIGS.

When the recording medium 3 is not present in the guide portion 6, that is, when the recording medium 3 is not conveyed from the case 4, the detection lever 24 is engaged with the guide groove 11. In this case, since the arm 25 integrally formed with the detection lever 24 is located above the case groove 10, even if the case 4 is pulled out to load the recording medium 3,
Is not pulled out.

Next, the operation when the recording medium 3 is conveyed and a conveyance error occurs on the way will be described.

When the recording medium 3 has not been conveyed yet, the detection lever 24 is engaged with the guide groove 11. When the recording medium 3 is conveyed, the recording medium 3 hits the detection lever 24. When the recording medium 3 hits the detection lever 24,
The detection lever 24 is positioned around the shaft 21 as indicated by an arrow a in FIG.
In the direction to push up the detection lever 24. Then
The arm 25 is engaged with the case groove 10 of the case 4.

Assuming that a transport error has occurred in the engaged state, that is, when transporting the recording medium 3, the user first pulls out the case 4 in order to remove the recording medium. In this case, since the arm 25 is still engaged with the case groove 10 of the case 4, it is pulled out in conjunction with the guide portion 6.

Then, the user pulls out the guide portion 6
The recording medium 3 on the upper side that has not been conveyed correctly is removed.

In this embodiment, the locking portion 22 is configured to engage the detection lever 24 with the guide groove 11 by its own weight when the recording medium 3 is not fed. By using the elastic member described above, the locking portion 22 may be biased in the direction in which the case 4 and the guide portion 6 are not interlocked.

[0022]

As described above, the printing apparatus of the present invention is provided with a mechanism for interlocking the case and the guide, so that if the recording medium is transported incorrectly in the guide, the recording medium is removed. In this case, the user can easily remove the recording medium remaining in the guide portion, and the recording medium is not broken and remains in the paper feed mechanism.

[Brief description of the drawings]

FIG. 1 is a configuration diagram of a printing apparatus according to an embodiment of the present invention.

FIG. 2 is a perspective view illustrating positions of a detection lever and an arm when a recording medium is not conveyed.

FIG. 3 is a perspective view illustrating positions of a detection lever and an arm when a recording medium is being conveyed.

FIG. 4 is a configuration diagram of a conventional printing apparatus.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Printing mechanism part 2 Paper feed part 3 Recording medium 4 Case 5 Roller 6 Guide part 10 Case groove 11 Guide groove 21 Shaft 22 Locking part 23 Back plate 24 Detection lever 25 Arm

Claims (2)

(57) [Claims] 1. A printing mechanism for printing on a recording medium, a case for loading the recording medium, a roller for peeling off the recording medium loaded on the case and sending the recording medium to the printing mechanism, A paper feed mechanism having a guide for guiding the recording medium peeled off in the printing mechanism to the printing mechanism, wherein the guide is disposed near the case and the guide A protruding portion protruding from the upper portion, a shaft provided perpendicular to the protruding portion, and a rotatably joined end of the shaft opposite to the protruding portion. And a locking portion that engages with the guide portion at the time and engages with the case when the recording medium is conveyed. 2. A back plate which contacts the shaft and rotates along the shaft, and a detection lever provided at one end of the back plate and engaging with a guide groove of the guide portion. 2. The printing method according to claim 1, further comprising an arm provided at the other end of the back plate and engaging with a case groove of the case, wherein the back plate, the detection lever, and the arm are integrally formed. apparatus.