JPH0539151A - Conveyed medium and conveyer - Google Patents

Abstract

(57) [Abstract] [Purpose] To obtain a tape carrier capable of preventing lateral displacement during transportation of the tape carrier. [Structure] Tape carrier sprocket hole 2c
The conveying direction portion of (the hole) is formed in an inverted V shape, and the rotating force of the tooth 3 (an example of the protrusion) of the conveying gear is the center line B of the tooth.
And the center line A of the sprocket hole.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a conveying medium such as a continuous form and a tape carrier and a conveying device, and more particularly to improving the shape of sprocket holes.

[0002]

2. Description of the Related Art FIGS. 7 and 8 show a conventional tape carrier.
Reference numeral 1 is a base of a tape carrier, 2a and 2b are sprocket holes, and 3 is a tooth of a transport gear.

The tape carrier is conveyed by engaging gear teeth 3 in the sprocket holes 2a and 2b and rotating the gears. That is, the teeth 3 are pressed by pushing the sides of 2a and 2b on the conveying direction side.

[0004]

The sprocket hole of the conventional tape carrier has a square shape in which the tooth contact side is perpendicular to the conveying direction as in 2a or an arc shape as in 2b. On the other hand, even if the center line of the sprocket hole shifts, will there be no force to restore the shift?
There was a problem that it could not be precisely positioned even if it was added.

The present invention has been made to solve the above problems, and an object of the present invention is to provide a medium transporting apparatus and a transporting apparatus which can reduce the displacement of the transporting position.

[0006]

In the first aspect of the invention, in order to achieve the above-mentioned object, the sprocket hole (an example of a hole) of the carrier medium has an inverted V-shape in the carrying direction. Further, the shape of the sprocket hole (an example of a hole) in the carrying direction portion may be V-shaped in addition to the inverted V shape.

In the second aspect of the invention, the teeth of the carrier device (an example of a protrusion) are engaged with the V-shaped hole.
Is a V-shape.

[0008]

According to the first aspect of the invention, the inverted V-shaped sprocket hole (hole) receives the rotational force of the tooth (projection) of the gear so as to surely correct the deviation between the conveying direction and the vertical direction. work. Further, in a device in which the conveying direction is reversed, the V-shaped sprocket hole (hole) can be made to work to surely correct the deviation even during the conveying in the opposite direction.

According to the second aspect of the invention, the sprocket hole (hole), the V-shape, and the V-shape of the teeth (protrusions) are matched, so that the deviation is further corrected.

[0010]

【Example】

Example 1. An embodiment of the first invention will be described below with reference to the drawings. In FIG. 1, 1 is a base body of a tape carrier (an example of a carrying medium), 2c is a sprocket hole (an example of a hole) according to the present invention, 3 is a tooth of a carrying gear (an example of a protrusion).
Is. And the sprocket hole part where the tooth hits is reverse V
It is similar to the conventional example except that it has a letter shape.

As described above, the teeth 3 are provided in the sprocket hole 2c.
Since the angle of contact with the slant is at an angle, a force is constantly applied from the tooth to the tape carrier so that the center line A of the sprocket hole and the center line B of the tooth coincide with each other.

In the above embodiment, the side of the inverted V-shape is a straight line, but the same effect can be obtained even if the correction force is not weakened.

As described above, in this embodiment, the tape carrier having the sprocket hole is characterized in that the sprocket hole has an inverted V-shape only in the conveying direction.

Example 2. Next, another example of the first invention will be described based on the embodiment shown in FIG. In the figure, 1 is a base of a tape carrier, 2d is a sprocket hole according to the present invention, and 3 is a tooth of a conveying gear. The sprocket hole is the same as the conventional example except that the transport direction portion and the portion opposite to the transport direction are each in an inverted V shape.

As described above, since the tooth 3 is in contact with the side of the sprocket hole 2d in a slanting direction in either the conveying direction or the opposite direction, the sprocket hole is always provided even in a device in which the conveying direction is reversed. A force for correcting the tape carrier is applied so that the center line A of the tooth and the center line B of the tooth coincide with each other.

In the above embodiment, the sides of the inverted V-shape and the V-shape are straight lines, but the same effect can be obtained if the correction force is not weakened.

As described above, in this embodiment, the sprocket hole has the reverse V-shape in the carrying direction and the V-shape in the direction opposite to the carrying direction.

Example 3. Next, an embodiment of the second invention will be described with reference to FIGS. 3, 4 and 5. 3, 4, and 5 show the case where the sprocket hole 2 and the tooth 3 have similar shapes. X1, X2, Y1, and Y2 indicate respective sides, and a force for correcting the position works so that X1 engages Y1 and X2 engages Y2. In this way, the force to be conveyed by the side X and the side Y is applied to the entire side, and the tape carrier is not damaged, and the stronger the conveying force, the closer the V-shapes of the sprocket hole 2 and the tooth 3 are to each other. More accurate position correction is possible.

Example 4. Although the sprocket holes (holes) and the teeth (protrusions) have similar shapes in the third embodiment, the entire shape does not have to be similar and a part may be similar. Further, as shown in FIG. 6, a protrusion having a V-shape that engages with a V-shape having a hole may be used instead of the similar shape.

Example 5. In the above-mentioned Examples 1 to 4, the case of the tape carrier has been described, but the present invention can also be applied to other carrying media such as continuous forms, camera films, paper tapes and their carrying devices.

[0021]

As described above, according to the first aspect of the invention, since the holes of the medium to be conveyed are formed in the inverted V shape in the conveying direction, the lateral shift can be suppressed to the minimum and the positioning accuracy can be improved. effective.

Further, according to the second aspect of the invention, since the shape of the protrusion of the conveying device is formed so as to engage with the shape of the hole, the positioning accuracy can be further improved and the hole of the conveying medium can be conveyed. It can be prevented from being destroyed by force.

[Brief description of drawings]

FIG. 1 is a plan view showing an embodiment of a tape carrier according to the first invention.

FIG. 2 is a plan view showing another embodiment of the tape carrier according to the first invention.

FIG. 3 is a plan view showing an embodiment of a tape carrier according to the second invention.

FIG. 4 is a plan view showing another embodiment of the tape carrier according to the second invention.

FIG. 5 is a plan view showing another embodiment of the tape carrier according to the second invention.

FIG. 6 is a plan view showing another embodiment of the tape carrier according to the second invention.

FIG. 7 is a plan view showing an example of a conventional tape carrier.

FIG. 8 is a plan view showing another example of a conventional tape carrier.

[Explanation of symbols]

 1 Base of Tape Carrier (Example of Transport Medium) 2, 2a to 2d Sprocket Hole (Example of Hole) 3 Teeth of Transport Gear (Example of Protrusion)

Claims (2)

[Claims] 1. A carrying medium having holes for carrying, at least two sides having an angle of 90 degrees or less with respect to the carrying direction on at least one of the carrying direction side and the opposite side of the hole. A carrier medium having a V-shaped portion formed by the method. 2. In a carrying device for carrying a projection through a hole of a carrying medium when carrying a carrying medium having a hole having a predetermined V-shape with respect to the carrying direction, the shape of the projection on the carrying direction side is a hole. The transport device is formed so as to engage with the V-shape.