JPH08288735A - Reader/writer for noncontact data carrier system - Google Patents

Abstract

PURPOSE: To improve the degree of freedom in the setting place of this reader/ writer as much as possible even when the reader/writer is a loop antenna type constituting a loop coil. CONSTITUTION: The loop antenna type reader/writer reads out or writes data from/in a non-contact type data carrier. The reader/writer consists of plural conductors 2 having flexibility, a male type multi-pole connector 4 connected to one end of these conductors 2, a female type multi-pole connector 5 connected to the other end of the conductors 2, and antenna terminals 3 respectively drawn out from both the connectors 4, 5. The connection points of the connectors 4, 5 to respective conductors 2 form a loop coil at the time of mutually connecting both the connectors 4, 5. On the other hand, the connecting points of the terminals 3 to the connectors 4, 5 are both the ends of the loop coil. An endless loop coil is constituted of mutually connecting both the connectors 4, 5.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a reader / writer for reading data from or writing data to a data carrier in a system using a non-contact type data carrier.

[0002]

2. Description of the Related Art A non-contact type data carrier system is used in various fields. For example, as shown in FIG. 8, each work 10 is provided with a tag type data carrier 11 and is conveyed by a belt conveyor 12. These work 10
In some cases, the reader / writer 1 may read data from the data carrier 11 or write data to the data carrier 11 to perform individual processing for each work 10. In the figure, 13 is a controller for the reader / writer 1, 14 is an upper host, and 15 is an information display unit.

At this time, if a reader / writer 1 of the loop antenna type is used, it is convenient for exchanging information with the data carrier 11, but the conventional reader / writer 1 of the loop antenna type is shown in FIG. As shown in FIG. 9, a conductor was wound around a loop coil or an endless one in which the loop coil was further covered with a plastic case or the like.

[0004]

In this case, as shown in FIG. 8, in order to arrange the reader / writer 1 so that the belt conveyor 12 penetrates through the loop of the loop antenna type reader / writer 1, the belt conveyor 12 is arranged. When a data carrier system is introduced after the transportation equipment including the above is completed, a part of the transportation equipment must be dismantled. In addition, because it is difficult to dismantle the transport facility, the reader / writer 1 beside the transport facility
However, if this space is the work space for the worker, the reader / writer 1 cannot be installed in an appropriate state. Even when the transport facility is installed after the reader / writer 1 is installed, the same problem occurs when the reader / writer 1 needs to be replaced.

The present invention has been made in view of the above points, and although the object thereof is a loop antenna type having a loop coil, the degree of freedom of its installation location is extremely high. A reader / writer for a contact-type data carrier system is provided.

[0006]

SUMMARY OF THE INVENTION The present invention, however, provides a loop antenna type reader / writer that reads data from a non-contact type data carrier or writes data to the data carrier, and has flexibility. A plurality of conductors, a male multi-pole connector to which one end of these conductors is connected, a female multi-pole connector to which the other ends of these conductors are connected, and an antenna terminal that is pulled out from both connectors. It is characterized in that the connection point to each conductor to both connectors forms a loop coil when connecting both connectors, and the connection points to the connector of the above antenna terminal are both ends of the loop coil. have. It is preferable that the plurality of conductors here are formed in a film shape or a tape shape that are integrated in parallel and in parallel.

[0007]

According to the present invention, the endless loop coil is formed by connecting the connectors to each other, and the endless loop coil can be obtained by disconnecting the connectors from each other. When a plurality of conductors are in the form of a film or tape in which parallel conductors are integrated in parallel and parallel, the conductors do not come apart and a clean loop coil can be formed when connecting the connectors.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the illustrated embodiments. A loop antenna type reader / writer 1 according to the present invention.
As shown in FIG. 1, a plurality of flexible conductors 2 arranged in parallel and a male-type multipolar connector 4 to which one ends of the conductors 2 formed of copper wires are connected, , Female multi-pole connector 5 to which the other ends of these conductors 2 are connected
And the antenna terminals 3 and 3 which are respectively pulled out from both connectors 4 and 5. Both connectors 4, 5
Are connectable to each other. As shown in FIG. 2, since the connecting pin of each conductor 2 to the connector 4 and the connecting pin to the connector 5 are offset by one, the connectors 4 and 5 are connected. When the child is connected, the plurality of conductors 2 form a loop coil. The antenna terminals 3 and 3 are connected to the connectors 4 and 5 so as to be connected to both ends of the loop coil.

Therefore, the connectors 4 and 5 are connected to both ends of the conductor 2 having the wire diameter according to the specifications, the length according to the coil diameter, and the number according to the number of turns, and the antenna terminals 3,
If 3 is connected to the connectors 4 and 5, an endless loop coil having a required specificity can be formed by connecting the connectors 4 and 5, and by disconnecting the connectors 4 and 5, the endless loop coil can be formed. Therefore, even when the reader / writer 1 is installed after the transfer facility is completed, the reader / writer 1 can be installed without disassembling the transfer facility.

FIG. 3 shows a case where the loop coil composed of the conductor 2 is of a rectangular shape, and FIG. 4 shows a case where the reader / writer 1 is installed so as to surround the belt conveyor 12. As shown in FIG. 5, if the fixing screw holes 20 are provided in the connectors 4 and 5, the reader / writer 1
It becomes easy to install and fix. Further, the loop coil portion may be fixed by using a fixing member 21 made of a non-metal material such as plastic as shown in FIG.

A flat ribbon cable can be preferably used for the plurality of conductors 2. Further, as shown in FIG. 7, a conductor film 22 made of a flexible printed circuit board, a conductor tape or the like can also be preferably used. Reference numeral 23 in the drawing denotes an antenna terminal pattern portion. In any case, since the plurality of conductors 2 are integrated in parallel and in parallel and do not come apart, it is easy to handle and the work of connecting the connectors 4 and 5 to the conductor 2 is also easy. Becomes

As the connectors 4 and 5, a rectangular type connector, which is suitable for a flat cable or a flexible substrate having a plurality of conductors 2 formed therein, is shown, but the connector type is not limited to this, and a circular type connector or the like is used. It doesn't matter.

[0013]

As described above, in the present invention, the endless loop coil is formed by connecting the connectors to each other, and the endless loop coil can be made non-endless by disconnecting the connectors from each other. Also, it is possible to easily cope with the case where a belt conveyor that conveys a work provided with a data carrier penetrates the inside of the loop coil. Regardless, the installation location is extremely flexible, and it can be carried and installed quickly and optimally. Further, since the conductor has flexibility, the antenna can have an antenna shape suitable for the counterpart equipment. Furthermore, since the diameter and the number of turns are determined by the length and number of conductors, it is easy to obtain the required characteristics and adapt to changes in characteristics.

When a plurality of conductors are integrated in parallel and in parallel in a film or tape form, the conductors do not come apart from each other and are easy to handle, and a clean loop is formed when the connectors are connected. A coil can be constructed.

[Brief description of drawings]

1A and 1B show an embodiment, in which FIG. 1A is a plan view when unfolded, and FIG. 1B is a front view when a connector is connected.

FIG. 2 is an explanatory view of a connection state between the above connector and a conductor.

FIG. 3 is a front view of another example.

FIG. 4 is a front view showing an installed state.

FIG. 5 is a front view of another example.

FIG. 6 is a front view of another example.

FIG. 7 is a plan view of still another example at the time of development.

FIG. 8 is a perspective view showing an example of a usage state of the non-contact data carrier system.

9A is a perspective view of a conventional example, and FIG. 9B is a front view of another conventional example.

[Explanation of symbols]

 1 reader / writer 2 conductor 3 antenna terminal 4 male connector 5 female connector 10 data carrier

Claims (2)

[Claims] 1. A loop antenna type reader / writer for reading data from a non-contact type data carrier or writing data to the data carrier, comprising a plurality of flexible conductors. A male multi-pole connector to which one end of a conductor is connected, a female multi-pole connector to which the other end of these conductors is connected, and an antenna terminal which is pulled out from both connectors. A non-contact data carrier system, characterized in that a connection point to the connector forms a loop coil when the two connectors are connected to each other, and connection points to the connector of the antenna terminal are both ends of the loop coil. Reader / writer. 2. The reader / writer for a non-contact type data carrier system according to claim 1, wherein the plurality of conductors are formed in a film shape or a tape shape integrated in parallel and in parallel.