JP3883896B2 - RF-ID wristband - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an RF-ID wristband that uses electromagnetic waves for reading and writing data.
[0002]
[Prior art]
Conventionally, as a field of application of non-contact IC tags, it is used by reading tag information when an operator uses it for entry and exit in a factory or when registering an operator in a machine to manage operation time It was done. In this case, it was used by attaching the tag to clothes such as work clothes, carrying a card-type tag like a commuter pass, or putting the card-type tag in a case and fastening the case to the clothes. .
[0003]
[Problems to be solved by the invention]
In the first example, it is necessary to reattach the tag every time the work clothes are changed, or to prepare tags for the number of work clothes. Since this tag is not equipped with a power source, the communication distance between the reader and the tag is generally only about several centimeters to several tens of centimeters in order to obtain the operating power of the IC chip by electromagnetic waves from the reader. For this reason, a person must approach the reader during reading. In the second and third examples, the card-type tag may be dropped when it is brought close to the reader, or depending on the position where the card is held, a read error may have to be made, which is complicated.
[0004]
Therefore, the present invention provides an RF tag for RF-ID in which the IC tag is easily separated from the human body by a predetermined distance so that the IC tag can be easily brought close to the reader and the electromagnetic wave is absorbed by the human body and the communication distance is not shortened. Provide a wristband.
[0005]
[Means for Solving the Problems]
The RF-ID wristband of the present invention is formed by forming an IC chip for storing data and an antenna for transmitting and receiving the data in a non-contact manner using an electromagnetic wave on a circuit board and sealing with a sealing material. An IC tag, a wristband body molded from a synthetic resin, with the belt portion extending from both ends of the IC tag housing portion, and the IC tag housing portion being thicker than both belt portions A recess for accommodating the IC tag is formed at a position close to the front surface side, and the recess is formed by a T-shaped cut from the back side of the IC tag storage portion. It is a feature. This configuration facilitates the operation of bringing the IC tag closer to the reader, and the communication distance is not shortened because electromagnetic waves are not absorbed by the human body.
[0006]
(Delete)
[0007]
DETAILED DESCRIPTION OF THE INVENTION
An embodiment of the present invention will be described with reference to the drawings.
[0008]
The present invention includes a wristband body 1 and an IC tag 2 attached to the wristband body 1. As shown in FIGS. 1 and 2, the wristband body 1 is made by injection molding silicon rubber, and includes an IC tag storage portion 11 at the center, an attachment belt portion 12 from both ends, and an adjustment belt portion 13. And are stretched. The IC tag storage portion 11 is formed thicker than the belt portions 12 and 13. FIG. 3 shows an example of the IC tag 2. That is, an IC chip 22 is mounted on a circuit board 21 made of PET film, and an antenna 23 is configured in a loop shape with a wiring pattern on the circuit board 21, and these are completely sealed with a packing sheet 24. The IC tag 2 has water resistance.
[0009]
The IC tag storage portion 11 is formed to have a predetermined thickness necessary for preventing electromagnetic waves from being absorbed by the human body, and is formed with a concave portion 11a for storing the IC tag 2 close to the surface side. As a result, the distance between the human body and the IC tag 2 is 8 mm or more. FIG. 4 shows an example of the recess 11a. The recess 11a is formed by cutting a T-shaped cross section as a whole with an insertion port 11b opened on the back surface. That is, an insertion port 11b for inserting the IC tag 2 from the back side of the IC tag storage unit 11 is provided, and a recess 11a is provided at the front end of the insertion port 11b so as to form a T shape as a whole. . Therefore, if the wristband body 1 is bent in the opposite direction to the direction in which the wristband 1 is wound around the arm, the insertion slot 11b is widened. By inserting, the IC tag 2 can be completely stored in the recess 11a. In this stored state, since the IC tag storage portion 11 is thick, the IC tag 2 is held a predetermined distance away from the surface of the arm so that transmitted electromagnetic waves are not absorbed by the human body. It has become.
[0010]
As shown in FIG. 5, the attachment belt portion 12 is provided with a bent portion 12a that is bent toward the arm at the tip portion, and a belt insertion hole 12b is formed so as to penetrate vertically in this bent state. . Accordingly, the insertion hole 12 b is a hole inclined in the insertion direction of the adjustment belt portion 13 with respect to the surface of the attachment belt portion 12.
[0011]
As shown in FIGS. 1 and 2, the adjustment belt portion 13 is wound around the arm, inserted from the tip thereof into the insertion hole 12 b, and adjusted in length to be attached to the arm. Convex portions 13a are formed on the outer peripheral surface in an aligned manner so that they are difficult to escape once inserted into the insertion hole 12b. Further, a locking piece 13b is formed at the tip, and it is semi-elliptical so that it can be easily inserted into the insertion hole 12b and is not easily removed from the holding ring 14 penetrated through the attachment belt portion 12. As shown in FIG. 6, the adjustment belt portion 13 is easy to insert because the insertion hole 12b is inclined with respect to the surface of the belt, and the state after the insertion is stable so as to follow the flow of the belt, The belt part is close to the arm to prevent lifting.
[0012]
FIG. 7 shows another form of a recess for housing the IC tag 2. In other words, a box-shaped recess 11c opened on the back surface is formed deep in the IC tag storage portion 11 to the vicinity of the front surface. The IC tag 2 is housed in the bottom of the recess 11c (position close to the surface of the wristband body 1), and although not shown, the IC tag 2 is sealed by potting. Thereby, the IC tag 2 is sealed, water resistance is increased, and impact resistance is also improved. The potting resin does not need to be provided to fill the entire box-shaped recess 11c, and may be an amount sufficient to seal the IC tag 2. This can reduce the weight.
[0013]
FIG. 8 shows another form of a recess for housing the IC tag 2. That is, the IC tag storage portion 11 is formed with a recess 11d that opens to the side surface at a position close to the surface. The IC tag 2 is inserted into the recess 11d from the side surface side with the wristband body 1 extended. Although the IC tag 2 is only inserted from the side, the wristband body 1 is slightly bent along the arm when worn on the arm, so that the IC tag 2 is frictionally applied to the inner surface of the recess 11d. It is held stably and does not escape from the side.
[0014]
In the above example, silicon rubber is used for the wristband body 1 so that it is light and hard to get dirty, has a good fit and can be washed with water, but is not limited to this. It is also possible to use a synthetic resin.
[0015]
【The invention's effect】
As described above, according to the present invention, the IC tag storage portion of the wristband body is formed thick, and the IC tag is stored at a position close to the surface side thereof. The necessary communication distance can be secured. Since the IC tag is provided in the wristband body, it can be easily brought close to the reader, no reading error occurs, and the IC tag is not dropped like a card type.
[Brief description of the drawings]
FIG. 1 is a front view showing an embodiment of the present invention.
FIG. 2 is an enlarged perspective view of a state wound around an arm.
FIG. 3 is an enlarged perspective view of an IC tag.
FIG. 4 is an enlarged sectional view showing an example of a recess.
FIG. 5 is an enlarged cross-sectional view showing a front end portion of the attachment belt portion.
FIG. 6 is an enlarged perspective view of a state in which the adjustment belt portion is coupled to the attachment belt portion.
FIG. 7 is an enlarged perspective view showing another example of a recess.
FIG. 8 is an enlarged perspective view showing still another example of a recess.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Wristband main body 11 IC tag accommodating part 11a, 11b Recessed part 11c with a T-shaped cross section Recessed part 11d on the back side Recessed part 12, 13 on the side face Belt part 2 IC tag 21 Circuit board 22 IC chip 23 Antenna 24 Sealing material

Claims (1)

An IC tag in which an IC chip for storing data and an antenna for transmitting and receiving the data in a contactless manner using electromagnetic waves are formed on a circuit board and sealed with a sealing material;
A wristband body formed of a synthetic resin and having a belt portion extending from both ends of the IC tag housing portion;
The IC tag storage portion is thicker than the belt portions, and a recess for storing the IC tag is formed at a position close to the front surface side .
The RF-ID wristband , wherein the concave portion is formed by a cut having a T-shaped cross section from the back side of the IC tag storage portion .

Images