JPH04130244U - Belt conveyance mechanism of media processing device - Google Patents

Abstract

(57) [Summary] [Purpose] The present invention relates to a belt conveyance mechanism of a media processing device, and aims to make it applicable to media of varying sizes. [Structure] In a belt conveyance mechanism of a media processing device in which a medium 3 is conveyed by a belt 2 driven around by a pulley 1, one edge is placed near the other side edge of the medium 3 which is guided by a guide wall 4 and conveyed. A step portion 5 is recessed in at least the end portion of the pulley 1 on the side of the medium 3 to form a gap 6 between the pulley 1 and the belt 2.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

The present invention relates to a belt conveyance mechanism for a media processing device.

0002

[Conventional technology]

In recent years, due to lower prices of media processing devices such as printing devices, slip A conveyance mechanism using a belt 2 has come to be frequently used in conveyance systems such as the above.

0003 This belt conveyance mechanism uses a pulley 1 placed between the walls of the frame to convey the belt. Conventionally, such a mechanism has a pulley with a medium-high cross-sectional shape. li was used.

0004

[Problem that the idea aims to solve]

On the other hand, such a belt conveyance mechanism tends to cause the medium 3 to skew, and The width direction dimension of the medium 3 guided by the guide wall 4 is from the guide wall 4 to the base. If the distance is approximately equal to the second rotation position of the media 3, as shown in FIG. The leading corner of the medium 3 (indicated by the arrow in FIG. 4) is connected to the belt 2 and pulley 1 by the line. Conventional belt conveyor The transport mechanism can only be used to transport medium 3 of a constant size. It had some drawbacks.

[0005] The present invention was made to solve the above-mentioned drawbacks, and the size is not constant. The purpose of this invention is to provide a belt conveyance mechanism for a media processing device that can be applied to even small media. Ru.

[0006]

[Means to solve the problem]

According to the present invention, the above object is achieved as shown in FIGS. 1 and 2 corresponding to the embodiments. A media processing device that conveys a medium 3 by a belt 2 driven around by a pulley 1 In the belt conveyance mechanism of One side edge is arranged near the other side edge of the medium 3 that is guided and conveyed by the guide wall 4. A stepped portion 5 is recessed in at least the end portion of the pulley 1 on the side of the medium 3 to be connected to the belt 2. By providing a belt conveyance mechanism for a media processing device in which a gap 6 is formed between will be achieved.

[0007]

[Effect]

In the present invention, the other side of the medium 3 that is conveyed with one side edge guided by the guide wall 4 The edge approximately matches the side edge of the belt 2, and the medium 3 is conveyed in a slightly oblique state to reach the edge. Even if the surface gets under the belt 2, it will be absorbed by the gap 6 between the belt 2 and the pulley 1. This prevents it from getting caught up in the pulley 1.

[0008]

【Example】

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0009] Figure 2 shows an embodiment of the present invention. In the figure, 7 is a wall forming a conveyance path. One side is used as a guide wall 4, and the medium 3 is guided by one edge on this guide wall 4. It is transported in a state where it is

0010 On the other hand, a plurality of drive shafts 8 are rotated by a drive source (not shown) across the conveyance path. The drive shaft 8 has a plurality of pulleys 1, 1, . . . A belt 2 is wound around these pulleys 1. In addition, The above-mentioned pulley 1 is placed in the center so that the belt 2 circulating on the conveyance path does not come off from the pulley 1. It is formed high.

[0011] Three belts 2, 2, 2 are placed around the upper and lower surfaces of the conveyance path, and these belts The embodiment shown in FIG. 2, in which both sides of the medium 3 are restrained and conveyed, has a minimum medium width WMIN. This also indicates a case where the settings are set to transport medium 3 between Therefore, due to the change in the width of the medium 3, it is possible for the edge of the medium 3 to match the side edge of the belt 2. A stepped portion 5 is recessed in the side end of the flexible pulley 1, and a stepped portion 5 is formed between the belt 2 and the pulley 1. A gap 6 is formed.

0012 Note that, as shown in FIG. 2, the step portion 5 has at least a side corresponding to the side edge of the medium However, as shown in Fig. 1, it is sufficient that the When provided in the left and right sides, left and right compatibility occurs, and the efficiency of assembly, etc. is improved. Also, in Figure 2 In this example, the case where three belts 2 are driven around the conveyance path is shown, but the number of belts 2 is can be determined as appropriate; in this case, the minimum media width WMIN to the maximum media width WMAX A stepped portion 5 is recessed in the pulley 1 located between the two, but consideration is given to ease of installation of the pulley 1. It is also possible to make all the pulleys 1 into the above-mentioned shape.

[0013]

[Effect of the idea]

As is clear from the above explanation, according to the present invention, the side edges of the medium are connected to the pulley and the bell. Even if the media is close to the boundary with the pulley, the media will not get caught up in the pulley. It can be used to transport media of various sizes.

[Brief explanation of drawings]

FIG. 1 is a diagram showing the main parts of the present invention.

FIG. 2 is a diagram showing an embodiment of the present invention.

FIG. 3 is a diagram showing a conventional example.

FIG. 4 is a diagram showing problems in the conventional example.

[Explanation of symbols]

1 pulley 2 belt 3 Medium 4 Guide wall 5 Stepped section 6 Gap

Claims (1)

[Scope of utility model registration request] Claims: 1. In a belt conveyance mechanism of a media processing device in which a medium (3) is conveyed by a belt (2) driven around by a pulley (1), one edge of the medium (3) is guided by a guide wall (4). A step (5) is recessed in at least the media (3) side end of the pulley (1) disposed near the other side edge of the media (3) to create a gap (5) between the pulley (1) and the belt (2). 6) A belt conveyance mechanism of a media processing device formed by forming.