JP5711002B2 - Pressing force measuring method, pressing force measuring member and pressing force measuring system - Google Patents

Description

  The present invention relates to a pressing force measuring method, a pressing force measuring member, and a pressing force measuring system, and more particularly to a technique for measuring a pressing force on a terminal of a connected body such as an IC card.

  Today, an IC card in which an IC (Integrated Circuit) is incorporated in a card is widely used for recording and calculating information. There are two types of IC cards: a contact IC card that communicates information by contacting terminals on the IC card, and a non-contact IC card that communicates information wirelessly. In the following description, “IC card” refers to a contact type IC card.

  In the manufacture and test of an IC card reader / writer device, the magnitude of the force (hereinafter referred to as “pressing force”) by which the terminal contact portion of the IC card reader / writer device presses the terminal of the IC card may be measured. One method for measuring the pressing force is to use pressure-sensitive paper that develops color when subjected to pressure. An example of a method for measuring such a pressing force is described in Patent Document 1.

  Patent Document 1 measures the pressing force of an IC card reader / writer device by attaching pressure-sensitive paper to an IC card and inserting it into an IC card reader / writer device, and checking the colored portion when the pressure sensitive paper is pressed. Describes how to do.

JP-A-62-230397

  In the method for measuring the pressing force described above, when the terminal contact portion of the IC card reader / writer device is in point contact or line contact with the terminal of the IC card, the area to be pressed is small, so that accurate measurement cannot be performed. There is. The reason is that when pressure-sensitive paper using microcapsules that are broken by receiving pressure is used, the microcapsules are not broken and the pressure-sensitive paper may not be colored correctly. Furthermore, because the area that develops color under pressure is small, visual measurement is difficult.

  An object of the present invention is to provide a pressing force measuring method, a pressing force measuring member, and a pressing force measuring system that solve the above-described problems.

The pressing force measuring method according to the present invention is:
A pressure-sensitive member is superimposed on the surface on which the terminal provided on the connected body is disposed,
By superimposing the pressing force measuring member provided with the surface contact portion on the surface on which the terminal of the connected body is disposed so as to sandwich the pressure sensitive member between the pressing force measuring member and the connected body, The surface contact part and the terminal face each other,
The pressure sensitive member is pressed through the surface contact portion by the terminal contact portion of the connected body reading / writing device.

The pressing force measuring member according to the present invention is
A surface contact portion having a predetermined area and a support portion for supporting the surface contact portion;
The surface contact portion is disposed at a position facing the terminal of the connected body when overlapped with the connected body, and is formed so as to be in surface contact,
A support part supports a surface contact part so that it may move according to a surface contact part being pressed.

The pressing force measurement system according to the present invention is:
The aforementioned pressure measurement member;
A connected body including a terminal;
A pressure sensitive member;
A connected body reading / writing device including a terminal contact portion;
The pressing force measuring member is overlapped on the surface of the body to be connected so that the pressure sensitive member is sandwiched between the pressing force measuring member and the body to be connected,
In a state where the pressing force measuring member and the connected body are overlapped, the surface contact portion faces the terminal,
The terminal contact portion presses the pressure sensitive member via the surface contact portion.

  The pressing force measuring method, the pressing force measuring member, and the pressing force measuring system according to the present invention enable accurate pressing force measurement using pressure sensitive paper.

It is a top view which shows the member for pressing force measurement which concerns on the 1st Embodiment of this invention. It is an enlarged view of the part shown to A in FIG. It is sectional drawing of the surface contact part 11 along the XY line of FIG. 1 is a plan view showing an IC card according to a first embodiment of the present invention. FIG. 3 is a perspective view for explaining a state in which the pressing force measuring member 1 is overlaid on the IC card 3. It is sectional drawing which shows the IC card reader / writer apparatus in which the IC card 3 was inserted. 3 is a cross-sectional view showing a state where an IC card 3 on which a pressing force measuring member 1 and a pressure sensitive paper 2 are overlapped is inserted into an IC card reader / writer device 4. FIG. 4 is a cross-sectional view showing a state where a terminal contact portion 41 presses the pressure sensitive paper 2 via the surface contact portion 11. FIG. FIG. 9 is an enlarged view of a portion indicated by B in FIG. 8. It is a figure which shows a mode that the pressure sensitive paper 2 developed color. It is a figure which shows the example of the relationship between the density of color development of the pressure sensitive paper 2, and a pressure.

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

  FIG. 4 is a plan view showing the IC card according to the first embodiment of the present invention. The IC card 3 includes eight terminals 31 for performing electrical communication with the outside in an arrangement of 4 × 2 rows. The arrangement and number of terminals 31 may be other than this.

  FIG. 6 is a cross-sectional view showing the IC card reader / writer device with the IC card 3 inserted therein. The IC card reader / writer device 4 includes a terminal contact portion 41 having spring characteristics (elasticity), an IC contact module 42 in which the terminal contact portion 41 is incorporated, and a shaft 43. The IC contact module 42 is attached so as to be rotatable around a shaft 43. The shaft 43 is fixed to the IC card reader / writer device 4. When the IC card 3 is inserted, the IC contact module 42 rotates around the shaft 43 by a mechanism (not shown) and moves downward in the drawing, so that the terminal contact portion 41 contacts the terminal 31 of the IC card 3. .

  FIG. 1 is a plan view showing a pressing force measuring member according to the first embodiment of the present invention. FIG. 2 is an enlarged view of a portion indicated by A in FIG. The pressing force measuring member 1 includes a surface contact portion 11 and a support portion 12.

  The surface contact portion 11 has a predetermined area and has a shape such that the pressing force measurement member 1 is cut out in a circular shape. Further, the surface contact portion 11 is fixed to the pressing force measuring member 1 by a support portion 12. Further, the surface contact portion 11 is disposed at a position facing the terminal 31 of the IC card 3 when the pressing force measuring member 1 is overlapped with the IC card 3.

  The support portion 12 supports the surface contact portion 11 so as to be movable in response to the surface contact portion 11 being pressed. For example, the surface contact portion 11 may be movable because the pressing force measuring member 1 has appropriate elasticity and the support portion 12 has an elongated shape. Alternatively, the support portion 12 may be separately formed and attached using an elastic material.

  FIG. 3 is a cross-sectional view of the surface contact portion 11 taken along line XY of FIG. As can be seen from FIG. 3, the surface contact portion 11 has a flat bottom surface. Thus, when the pressing force measuring member 1 is overlaid on some member, the surface contact portion 11 makes surface contact with the overlaid member. The surface contact portion 11 has appropriate rigidity so as not to bend even when pressed by the terminal contact portion 41 of the IC card reader / writer device 4. The surface contact portion 11 may be integrally molded, or may be separately formed and attached.

  FIG. 5 is a perspective view for explaining a state in which the pressing force measuring member 1 is overlaid on the IC card 3. The pressing force measuring member 1 is overlaid on the surface of the IC card 3 on which the terminals 31 are disposed so as to sandwich the pressure sensitive paper 2. In the pressure sensitive paper 2, the portion that receives the pressure develops a color corresponding to the pressure. The surface contact portions 11 face the terminals 31 with the pressure sensitive paper 2 interposed therebetween.

  FIG. 7 is a cross-sectional view showing a state in which the IC card 3 on which the pressing force measuring member 1 and the pressure sensitive paper 2 are overlapped is inserted into the IC card reader / writer device 4. In this state, when the IC contact module 42 rotates around the shaft 43 and moves downward in the drawing, the terminal contact portion 41 contacts the surface contact portion 11 of the pressing force measuring member 1. Then, the terminal contact portion 41 presses the pressure sensitive paper 2 through the surface contact portion 11.

  FIG. 8 is a cross-sectional view showing a state in which the terminal contact portion 41 presses the pressure sensitive paper 2 through the surface contact portion 11. FIG. 9 is an enlarged view of a portion indicated by B in FIG.

  Next, a pressing force measurement method according to the first embodiment of the present invention will be described in order with reference to FIGS.

  First, as shown in FIG. 5, the pressing force measuring member 1 and the pressure sensitive paper 2 are superimposed on the IC card 3 so that the positions of the surface contact portion 11 and the terminal 31 coincide.

  Next, as shown in FIG. 7, the IC card 3 in which the pressing force measuring member 1 and the pressure sensitive paper 2 are overlapped is inserted into the IC card reader / writer device 4.

  Next, the IC contact module 42 rotates around the shaft 43 and moves downward in the drawing. Thereby, as shown in FIG. 8, the terminal contact part 41 contacts and presses the surface contact part 11 of the pressing force measuring member 1. Then, the terminal contact portion 41 presses the pressure sensitive paper 2 through the surface contact portion 11. Further, the terminal contact portion 41 presses the terminal 31 via the surface contact portion 11 and the pressure sensitive paper 2. This state is maintained for a predetermined time. The maintaining time is determined by the characteristics of the pressure sensitive paper 2 and the like.

  As shown in FIGS. 8 and 9, the terminal contact portion 41 is in point contact with the surface contact portion 11. A pressing force (F in FIGS. 8 and 9) is applied to the contact point. The surface contact portion 11 is in surface contact with the pressure sensitive paper 2. The surface contact portion 11 presses the pressure sensitive paper 2 with a substantially uniform surface pressure (P in FIG. 9) according to the pressing force F. By being pressed, the pressure sensitive paper 2 generates a colored portion (C in FIGS. 8 and 9).

  Next, the IC card 3 on which the pressing force measuring member 1 and the pressure sensitive paper 2 are overlapped is taken out from the IC card reader / writer device 4. Then, the pressing force measuring member 1 and the pressure sensitive paper 2 are separated from the IC card 3, and the person who performs the measurement confirms the coloring portion C of the pressure sensitive paper 2.

  FIG. 10 is a diagram illustrating a state in which the pressure sensitive paper 2 is colored. The pressure-sensitive paper 2 generates a circular colored portion C which is the shape of the surface contact portion 11 when the surface contact portion 11 presses the pressure-sensitive paper 2 in response to the terminal contact portion 41 pressing the surface contact portion 11. ing. The person who performs the measurement can measure the pressure applied to each of the coloring portions C by confirming the color density of the coloring portions C by visual observation or the like.

  FIG. 11 is a diagram illustrating an example of the relationship between the color density of the pressure-sensitive paper 2 and the pressure. FIG. 11 shows that the pressure applied to the pressure sensitive paper 2 increases as the color density increases. In this way, the relationship between the color density and the pressure is set for each pressure sensitive paper to be used. Furthermore, a relationship between the color density and the pressure value during a predetermined pressing time may be set. By checking the color density while referring to such settings, the person who performs the measurement can measure the value of the pressure applied to the pressure sensitive paper.

  In pressing by surface contact, the pressing force per unit area is smaller than pressing by point contact. For example, the pressing force of the terminal contact portion 41 is obtained from the pressure (the pressing force of the surface contact portion 11) measured from the color development portion C by the following calculation formula.

Pressure [Pa] measured from the color development portion C × area [square m] of the surface contact portion 11 = pressing force [N] of the terminal contact portion 41
Thus, finally, the pressing force of each terminal contact portion 41 can be obtained.

  As described above, the pressing force measuring method according to the first embodiment of the present invention enables accurate pressing force measurement using the pressure sensitive paper 2. This is because even if the terminal contact portion 41 is in a point contact shape, the surface contact portion 11 of the pressing force measuring member 1 is in surface contact with the pressure sensitive paper 2, and therefore a color development area suitable for measurement can be obtained. It is. As a result, the pressure-sensitive paper 2 can be appropriately colored. Further, it is possible to easily and accurately measure the color development spot by visual observation or the like.

  Moreover, the pressing force measuring method according to the first embodiment of the present invention enables measurement in a state where the IC card reader / writer device 4 is assembled without using a dedicated measuring instrument. This is because the measurement is completed by simply inserting the IC card 3 on the IC card 3 and the pressure sensitive paper 2 into the IC card reader / writer device 4 and operating the IC card reader / writer device 4. . Thus, the pressing force measurement method according to the first embodiment of the present invention facilitates the pressing force of the terminal contact portion 41 of the IC card reader / writer device 4 after being shipped to the market as well as in a factory or the like. Can be inspected and confirmed.

  The pressure sensitive paper 2 is sometimes called a pressure sensitive member. The IC card 3 is sometimes called a connected body. The IC card reader / writer device 4 is sometimes called a connected body reading / writing device.

  In the above embodiment, the pressure sensitive paper 2 may be a material other than paper as long as it is a thin sheet-like member. For example, a film material may be used.

  The pressing force measuring method according to the above embodiment can be applied to other than IC cards as long as it has a card-like shape and has a pressed portion.

  The surface contact portion 11 may not be circular as shown in FIG. For example, it may be a polygon such as a triangle, a quadrangle, or a trapezoid, or other shapes.

  Moreover, the support part 12 does not need to be a flat shape as shown in FIG. For example, it may be a stepped shape, a spiral shape, or other shapes.

  The IC contact module 42 may not be mounted so as to be rotatable around the shaft 43. For example, the IC contact module 42 may be a mechanism that translates vertically in the drawing.

DESCRIPTION OF SYMBOLS 1 Pressing force measurement member 11 Surface contact part 12 Support part 2 Pressure sensitive paper 3 IC card 31 Terminal 4 IC card reader / writer apparatus 41 Terminal contact part 42 IC contact module 43 Axis C Color development location F Pressing force P Pressure

Claims (10)

A pressure-sensitive member is superimposed on the surface on which the terminal provided on the connected body is disposed,
The pressing force measuring member provided with the surface contact portion is overlapped on the surface of the connected body on which the terminal is disposed so that the pressure sensitive member is sandwiched between the pressing force measuring member and the connected body. By matching, the surface contact portion and the terminal are opposed to each other,
A pressing force measuring method of pressing the pressure sensitive member through the surface contact portion by a terminal contact portion of a connected body reading / writing device ,
The pressing force measuring method, wherein the surface contact portion has a rigidity that does not bend by the pressing .   The pressure measurement method according to claim 1, wherein the pressure-sensitive member is pressure-sensitive paper that develops color when pressed, and the pressure is measured based on a color-forming state of the pressure-sensitive paper.   The pressing force measuring method according to claim 1, wherein the connected body is an IC card. The pressing force measurement member further includes a support portion that supports the surface contact portion,
The surface contact portion is disposed at a position facing the terminal when overlapped with the connected body, and is formed so as to be in surface contact with the connected body,
The pressing force measuring method according to any one of claims 1 to 3, wherein the support portion supports the surface contact portion so as to be movable in response to the surface contact portion being pressed. A surface contact portion having a predetermined area;
And a support portion for supporting the surface contact portion,
The surface contact portion is disposed at a position facing the terminal of the connected body when overlapped with the connected body, and is formed so as to be in surface contact,
The support portion supports the surface contact portion so as to be movable in response to the surface contact portion being pressed ,
Pressing force measuring member for have a degree of rigidity to the surface contact portion is not deflected by the pressing.   The pressing force measuring member according to claim 5, wherein the support portion has elasticity.   The pressing force measuring member according to claim 5 or 6, wherein the connected body is an IC card. A member for measuring a pressing force according to any one of claims 5 to 7 ,
And a pressure-sensitive member,
A connected body reading / writing device including a terminal contact portion;
When installing a connected body with terminals,
The pressing force measuring member is overlapped on the surface of the connected body on which the terminal is disposed so as to sandwich the pressure sensitive member between the pressing force measuring member and the connected body.
In the state where the pressing force measuring member and the connected body are overlapped, the surface contact portion faces the terminal,
A pressing force measurement system in which the terminal contact portion presses the pressure-sensitive member via the surface contact portion.
  The pressure measurement system according to claim 8, wherein the pressure-sensitive member is pressure-sensitive paper that develops color when pressed.   The pressing force measuring system according to claim 8 or 9, wherein the connected body is an IC card.

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