JPH04130249U - Paper ejection device - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a paper ejecting device capable of ejecting recording paper with a simple configuration. [Structure] The paper ejecting device of the present invention includes a rotational drive source, a power transmission gear to which rotational force from the rotational drive source is applied via a rotational shaft, and an arm member having one end of the rotational shaft inserted therein. an output gear rotatably attached to the other end of the arm member so as to mesh with the power transmission gear, and elastically biased to the arm member via a friction member; It consists of a roller coupled to an output gear.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

The present invention relates to a paper discharge device used in a video printer.

0002

[Conventional technology]

Figure 7 shows a schematic configuration diagram of a paper ejection device used in a conventional video printer. , the printed recording paper 1 is released from the platen roller 2 around which it was wrapped. The paper is transported to the paper ejection position. The recording paper 1 conveyed to this paper ejection position is moved to the lever 3. However, due to this extrusion action, it is held between rollers 4, 4, 5, and 5. , the recording paper is conveyed to the ejection port by the continuous rotation of rollers 4, 4, 5, and 5. It has become so.

0003

[Problem that the idea aims to solve]

By the way, in the conventional device as mentioned above, after being sent out from the platen roller, , which is transported to a predetermined take-out port using a lever and rollers. Separate extrusion mechanism and roller conveyance mechanism are provided. This has the disadvantage of complicating the mechanism.

0004 Therefore, the present invention has developed a paper ejection device that can eject recording paper with a simple configuration. This is what we provide.

[0005]

[Means to solve the problem]

The paper ejecting device of the present invention includes a rotational drive source, and a rotational force from the rotational drive source moves around a rotation shaft. a power transmission gear provided through the and a rotatable member at the other end of the arm member so as to mesh with the power transmission gear. At the same time, the arm member is elastically biased via a friction member. The output gear includes an output gear and a roller connected to the output gear.

[0006]

[Effect]

According to the above configuration, the recording paper can be ejected by a single ejection drive device.

[0007]

【Example】

FIG. 3 is an enlarged perspective view of the main parts of the paper ejection device of the present invention, and FIG. 4 is a sectional view of the main parts. 6 is a motor, 7 is a first gear coupled to the shaft 6a of the motor 6, and 8 is the first gear. A second gear meshing with 7 and coupled to the rotating shaft 9; 10 coupled to the rotating shaft 9; a power transmission gear 11, an arm member 12 through which the rotating shaft 9 is inserted at one end; is rotatably attached to the other end side of the arm member 11 so as to mesh with the power transmission gear 10. The arm member 11 is attached with felt (friction member). ) 13, the output gear 14 is coupled to the output gear 12; It is a roller that has been removed.

[0008] FIG. 4 shows a state in which the arm member 11, output gear 12, and paper feed roller 14 are connected. is shown in detail, and the outer cylindrical portion 15 of the output gear 12 is provided with a rubber roller 14. is fixed, and a shaft 17 having a retaining collar 18 is inserted into the inner cylindrical portion 16. One end of the shaft 17 is connected to the arm member 11.

[0009] Further, a coil spring 19 is attached between the collar 18 of the shaft 17 and the inner bottom surface 20. As a result, the output gear 12 is connected to the arm member 11 via the felt 13. is suppressed with moderate pressure.

0010 3 and 4, in order to apply rotational force to the power transmission gear 10, the first Although the second gears 7 and 8 are used as power transmission means, the second gear is connected to the shaft 6a of the motor 6 as shown in FIG. A first pulley 30 is attached, a second pulley 31 is attached to the shaft 9, and these first and second pulleys 3 The belt 32 may be stretched between 0 and 31.

[0011] Next, the operation of the paper discharge device of the present invention will be explained with reference to FIGS. 1, 2, and 5. As shown in FIG. 5, the printed recording paper 25 released from the platen roller 26 is It is conveyed in the rotational direction of the Latin roller 26 and placed at position A, but at this time, The paper feed roller 14 is located approximately at the center of the recording paper 25.

0012 In this state, when the power transmission gear 3 rotates counterclockwise as shown in Fig. 1, the output gear 1 2 rotates clockwise, but at this time, the rotation of the output gear 12 is controlled by the felt 13. Since resistance acts on the arm part due to a part of the rotational torque of the power transmission gear 10, The material 11 is rotated counterclockwise as shown by the solid arrow. Also, conversely, power transmission When the reach gear 10 rotates clockwise as shown by the broken line, the arm member 11 rotates clockwise. It will rotate to.

[0013] Then, as shown in FIG. 2, the power transmission gear 10 is rotated counterclockwise to eject the recording paper. When the paper is rotated, as a result of the above, the paper feed roller 14 comes into pressure contact with the recording paper 25, and further When the power transmission gear 10 continues to rotate, the rotational force of the arm member 11 and the paper feed roller The paper is fed by frictional resistance between the recording paper 14 and the recording paper 25. And the exclusion When the paper (paper feeding) is finished, the power transmission gear 10 rotates in the reverse direction. As a result, the above The arm member 11 rotates in the direction of the dashed arrow and returns to its original state.

[0014] In addition, 21 is the video printer body, 22 is the chassis, and 23 is the shaft 9 inserted through it. A holding member 24 connected to the chassis 22 is a recording paper holding stand.

[0015]

[Effect of the idea]

According to the present invention, recording paper can be ejected using a single ejection drive device. A recording paper ejecting device can be realized with a simple configuration.

[Brief explanation of drawings]

FIG. 1 is a diagram for explaining the operation of main parts of a video printer embodying the present invention.

FIG. 2 is a diagram for explaining the operation of main parts of a video printer embodying the present invention.

FIG. 3 is an enlarged perspective view of a main part of a paper discharge device embodying the present invention.

FIG. 4 is a sectional view of a main part of a paper ejecting device embodying the present invention.

FIG. 5 is a diagram showing the deployment position of a paper discharge device implementing the present invention.

FIG. 6 is an enlarged perspective view of a main part of a paper discharge device according to another embodiment of the present invention.

FIG. 7 is a diagram showing main parts of a conventional paper ejecting device.

[Explanation of symbols]

6 motor 9 Rotation axis 10 Power transmission gear 11 Arm member 12 Output gear 14 Roller

Claims (1)

[Scope of utility model registration request] 1. A rotational drive source, a power transmission gear to which rotational force from the rotational drive source is applied via a rotational shaft, an arm member through which the rotational shaft is inserted at one end, and the power transmission gear. an output gear rotatably attached to the other end of the arm member so as to mesh with the arm member, and elastically biased to the arm member via a friction member; Paper ejection device consisting of rollers.