JP2008273470A - Electronic equipment with card insertion opening - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To improve security against surreptitious picking of a shutter. <P>SOLUTION: This electronic equipment with a card insertion opening is provided with an equipment main body 1 having an upper case 2, a lower case 3 and a surface panel 4; the card insertion opening 5 provided on the surface panel 4; the shutter 6 of the card insertion opening 5 provided laterally slidably along the surface panel 4; a hood part 2a extended at the front end of the upper case 2 so as to cover the upper part of the shutter 6; a rail groove 2c formed on the lower face side of the hood part 2a and engaged with an upper end engagement edge part 6b of the shutter 6 to prevent detachment of the shutter 6 while guiding the sliding operation of the shutter 6; and reinforcement ribs 2e projectingly provided on the lower face of the hood part 2a and abutting on the back face of the surface panel 4 when upward force is applied to the hood part 2a to prevent lifting up of the hood part 2a. Since the reinforcement ribs 2e are inserted to insertion holes 4e at the upper end 4b of the surface panel 4, the upper end engagement edge part 6b of the shutter 6 and the upper end 4b of the surface panel 4 are nipped between a front end hanging wall 2b of the hood part 2a constituting one side wall part of the rail groove 2c and the reinforcement ribs 2e. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to an electronic device with a card insertion slot such as a digital tachograph mounted on a vehicle.

  For example, in in-vehicle electronic devices such as digital tachographs and automatic toll collection systems (ETC: Electronic Toll Collection System) in-vehicle devices, memory cards and IC cards, which are information storage media, are mounted on the front panel (exterior panel) of the device body. Some of them have a card insertion slot for inserting the information storage medium card.

  As such an electronic apparatus with a card insertion slot, a digital tachograph described in Patent Document 1 is known, and FIG. 3 shows an appearance of a conventional digital tachograph 100 described in the same document.

  The digital tachograph 100 has a front panel 102 equipped with various switches on the front surface of a main body case 101, and has a card insertion slot 103 for inserting an information storage medium card C in the front panel 102.

  When the card C is inserted into the card insertion slot 103, the slide button 104 covers a part of the card insertion slot 103 with the force of a spring (not shown), and the card C cannot be removed even if the ejection button 105 is operated. ing. Then, the writing of information to the card C is started in response to the operation of the end button 106.

  Further, when the card C is removed, the card C is removed from the insertion slot 103 by pressing the ejection button 105 while holding the slide button 104 shifted to the left side of the front panel 102 so as not to reach the card insertion slot 103. It can be discharged.

By the way, in this digital tachograph 100, the card insertion slot 103 provided on the front panel 102 is always exposed to the outside. This prevents the tachograph from being mistakenly operated, and thus has a problem of weak protection. Such a problem can also occur in devices other than digital tachographs.
JP 2004-103446 A

  In order to solve such a problem, the present inventors have provided a slide type shutter 113 for opening and closing the card insertion slot 112 on the front side of the front panel 111 of the device main body 110 as shown in FIG. When the card C was not inserted or removed, a digital tachograph was proposed in which the card insertion slot 112 was shielded by the shutter 113 (not disclosed).

  In the case shown in FIG. 4, the sliding direction of the shutter 113 is the left-right direction indicated by the arrow A. When the card C is not inserted or removed, as shown in FIG. When the card C is inserted and removed, the shutter 113 slides to the right side to open the card insertion slot 112, as shown in FIG. 4B. Yes.

  In this case, the shutter 113 is slidable by engaging the upper and lower edges of the shutter 113 with a rail (not shown) provided on the device main body 110 side so that the shutter 113 does not fall off or be illegally removed. I devised and considered the assembly.

  However, in the course of the examination, the engagement portion on the upper side of the shutter 113 tends to be a weak point, and if the main body case 101 is pry open with a driver or the like without leaving a trace, the card C is removed. I realized that it could be tampered with.

  In view of the above circumstances, an object of the present invention is to provide an electronic device with a card insertion slot that has improved protection against unauthorized removal of a shutter for shielding the card insertion slot.

  An electronic device with a card insertion slot according to the invention of claim 1 is provided on the front panel, the device main body having an upper case, a lower case, and a front panel that closes a front opening that can be formed by combining the two cases. A card insertion slot for inserting an information storage medium card inside the main body, and a slide-type opening / closing mechanism that is provided on the front surface of the front panel so as to be slidable in the left / right direction along the front panel. A shutter, a flange extending at the front end of the upper case so as to cover the upper part of the shutter, and a lower surface side of the flange, and an upper end engaging edge of the shutter are engaged. A rail groove that prevents the shutter from detaching while guiding the sliding operation of the shutter, and a protrusion provided on the lower surface of the flange, and when an upward force is applied to the flange, the front panel By striking the surface, characterized by comprising a reinforcement rib for preventing lifting upward of the eaves portion.

  Invention of Claim 2 is the electronic device with a card insertion slot of Claim 1, Comprising: Between the front end hanging wall of the said collar part which comprises one side wall part of the said rail groove, and the said rib, The upper end engaging edge of the shutter and the upper end of the front panel are sandwiched.

  A third aspect of the present invention is the electronic device with a card insertion slot according to the first or second aspect, wherein the rib is inserted into an insertion hole formed in an upper end of the front panel.

  A fourth aspect of the present invention is the electronic device with a card insertion slot according to the first or second aspect, wherein the rib has a long cross-sectional shape in the front-rear direction of the upper case.

  According to the first aspect of the present invention, the upper case constituting the apparatus main body is provided with the collar portion to cover the upper part of the shutter, and the rail groove for engaging the upper end engaging edge of the shutter is provided on the lower surface side of the collar portion. Therefore, it is possible to improve the defense against unauthorized removal of the shutter. In addition to that, when a reinforcing rib is projected on the lower surface of the collar part of the upper case and an upward force is applied to the collar part, the rib hits the back surface of the front panel, so that Since the heel is prevented from being lifted, it is difficult for the buttock to be deformed by an external force, and it is possible to effectively prevent the buttock from being opened.

  Accordingly, it is possible to prevent the shutter from being detached, and it is possible to reliably prevent unauthorized removal of the card in a state where the shutter should be closed. That is, for example, in order to remove a card and tamper with it, it is not necessary to open it easily, and it is necessary to leave a large trace on the main body of the device. By seeing the ribs on the way, it can be expected to give up, and tampering can be prevented.

  According to the second aspect of the present invention, since the upper edge engaging edge of the shutter and the upper end of the front panel are sandwiched between the rib and the front end hanging wall of the collar, the opening force is applied to the collar and the rib is When it hits the back surface of the front panel, the two walls of the front panel and the shutter receive the force from the ribs. Therefore, the rib can be surely pressed down, and the lifting of the collar portion can be surely prevented by the simple assembly structure.

  According to the invention of claim 3, since the rib is fitted in the insertion hole of the front panel, the engagement between the front end of the upper case and the upper end of the front panel is strengthened. As a result, the front panel and the upper case are prevented from coming off. This can prevent the shutter from coming off more easily.

  According to the invention of claim 4, since the rib has a vertically long cross section, it becomes difficult to bend, thereby making it easier to open the flange portion and preventing the shutter from coming off.

  Embodiments of the present invention will be described below with reference to the drawings.

  FIG. 1 is a configuration diagram of a digital tachograph according to an embodiment. FIG. 1 (a) is a partially exploded perspective view of the front portion as viewed from above, and FIG. 1 (b) is a cross-sectional view taken along the arrow Ib-Ib in FIG. It is. 2 is a diagram showing a configuration of a comparative example, FIG. 2 (a) is a partially exploded perspective view showing the same part as FIG. 1 (a), and FIG. 2 (b) is IIb-IIb of FIG. 2 (a). FIG. 2C is a cross-sectional view of the same portion as FIG. 2B showing a state in which the collar portion is pry open with a driver.

  As shown in FIG. 1A, the device body 1 of this digital tachograph is formed by combining an upper case 2 and a lower case 3 made of resin, which house a circuit of the digital tachograph, and an upper case 2 and a lower case 3. And a resin-made front panel (front panel) 4 covering the front opening. The front panel 4 is provided with a card insertion slot 5 for inserting an IC card (information storage medium card) C into the apparatus main body 1, and a shutter 6 for opening and closing the card insertion slot 5 on the front surface of the front panel 4. Is slidable in the left-right direction along the front panel 4.

  The shutter 6 has engaging edge portions 6b (only the upper end side is shown) at the upper end and the lower end of the front plate 6a. These engaging edge portions 6b are shown in FIG. By engaging with a rail groove 2c provided on the lower surface of the front end of the flange portion 2a and a rail groove (not shown) provided on the lower surface of the front end of the lower case 3, each slides in the left-right direction while being guided by the rail groove 2c. It is equipped so as to be able to do so, so that it cannot be removed from the rail groove 2c in the assembled state.

  The flange portion 2a is extended at the front end of the upper case 2 so as to cover the upper part of the shutter 6, and the rail groove 2c is formed on the lower surface thereof by using the front end hanging wall 2b and the rear convex portion 2d as both side wall portions. Is formed.

  Further, a plate-like reinforcing rib 2e having a long cross-sectional shape in the front-rear direction of the upper case 2 projects from a position immediately behind the convex portion 2d. The reinforcing rib 2e prevents the upper part 2a from being lifted upward by hitting the rear surface of the front panel 4 when an upward force is applied to the upper part 2a. A plurality of spaces are arranged at appropriate positions. And each reinforcement rib 2e is inserted in the insertion hole 4e formed in the upper board 4c of the upper end 4b of the front panel 4, and the front end drooping of the collar part 2a which comprises one side wall part of the rail groove 2c An upper end engaging edge 6b of the shutter 6 and an upper end 4b of the front panel 4 are sandwiched between the wall 2b and the rib 2e.

  Next, the operation of the above configuration will be described in comparison with the comparative example of FIG.

  As shown in FIGS. 2A and 2B, the comparative example of FIG. 2 does not include the reinforcing rib 2e and the insertion hole 4e in FIGS.

  In the case of this comparative example, as shown in FIG. 2 (b), the upper case 2 constituting the device body 1 is provided with a flange 2a to cover the upper portion of the shutter 6, and the upper surface of the shutter 6 is connected to the lower surface of the flange 2a. Since the rail groove 2c with which the edge portion 6b engages is provided, it seems that a certain degree of protection against unauthorized removal of the shutter 6 is secured. However, as shown in FIG. If the front end of the driver 50 is inserted into the front end of 2a and the flange 2a is to be lifted upward, the flange 2a may be bent easily and the shutter 6 may be detached.

  On the other hand, in the case of the embodiment of the present invention shown in FIG. When the upward force is applied to the flange portion 2a, the reinforcing rib 2e hits the back surface of the front panel 4 to prevent the flange portion 2a from being lifted upward. Therefore, the collar part 2a becomes difficult to deform | transform with respect to the force from the outside, and it is possible to effectively prevent the collar part 2a from opening. Therefore, it is possible to effectively prevent the shutter 6 from coming off, and to reliably prevent unauthorized removal of the card when the shutter 6 should be closed.

  That is, for example, in order to extract and tamper with a card, it is not necessary to open it easily, and it is necessary to leave a large trace on the device body 1, so that even if there is a tampering, the discovery becomes easy. Since the reinforcing rib 2e can be seen in the middle of prying, it can be expected to give up prying off, and tampering can be prevented.

  Further, since the upper end engaging edge portion 6b of the shutter 6 and the upper end 4b of the front panel 4 are sandwiched between the reinforcing rib 2e and the front end hanging wall 2b of the flange portion 2a, a prying force is applied to the flange portion 2a. Even when the reinforcing rib 2e hits the back surface of the front panel 4, the two walls of the front panel 4 and the shutter 6 receive the force from the reinforcing rib 2e. Therefore, the reinforcing rib 2e can be surely pressed down, and the lifting of the flange portion 2a can be reliably prevented by a simple assembly structure.

  In particular, since the reinforcing ribs 2e are respectively fitted into the insertion holes 4e provided in the upper end 4b of the front panel 4, the engagement between the front end of the upper case 2 and the upper end 4b of the front panel 4 is strengthened. As a result, the front panel 4 Further, the upper case 2 can be prevented from coming off, and the shutter 6 is more difficult to come off.

BRIEF DESCRIPTION OF THE DRAWINGS It is a block diagram of the digital tachograph of embodiment of this invention, (a) is the partial exploded perspective view which looked at the front part from the upper side, (b) is Ib-Ib arrow sectional drawing of (a). It is a figure which shows the structure of the comparative example for comparing with this invention, (a) is a partial exploded perspective view which shows the same part as FIG. 1 (a), (b) is IIb-IIb arrow sectional drawing of (a), (C) is sectional drawing of the same part as (b) which shows a mode that the collar part is pry open with a driver. It is an external appearance perspective view which shows an example of the conventional digital tachograph. BRIEF DESCRIPTION OF THE DRAWINGS It is an external appearance perspective view which shows an example of the digital tachograph which has a slide type shutter examined before reaching this invention, (a) is the state which closed the shutter, (b) is a figure which shows the state which opened the shutter.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Apparatus main body 2 Upper case 2a Eaves part 2b Front end hanging wall 2c Rail groove 2e Rib 3 Lower case 4 Front panel (front panel)
4b upper end 4e insertion hole 5 card insertion slot 6 shutter 6b engagement edge (upper engagement edge)
C IC card (information storage medium card)

Claims (4)

  A device main body having an upper case, a lower case, and a front panel that closes a front opening formed by combining these two cases, and a card provided in the front panel for inserting an information storage medium card into the device main body An insertion slot; a slide-type shutter that opens and closes the card insertion slot by being slidable in the left-right direction along the front panel; and the upper case so as to cover an upper part of the shutter. The hook is extended at the front end of the shutter and the lower surface of the hook is engaged with the upper edge of the shutter so that the shutter can be removed while guiding the sliding operation of the shutter. A rail groove to be prevented and projecting on the lower surface of the flange, and when an upward force is applied to the flange, the upper surface of the flange is lifted by hitting the back surface of the front panel. The card insertion slot with the electronic device, characterized by comprising a reinforcement rib for preventing Ri. An electronic device with a card insertion slot according to claim 1,
An upper end engaging edge of the shutter and an upper end of the front panel are sandwiched between a front end hanging wall of the flange portion and the rib constituting one side wall portion of the rail groove. Electronic device with a card slot. An electronic device with a card insertion slot according to claim 1 or 2,
An electronic apparatus with a card insertion slot, wherein the rib is inserted into an insertion hole formed at an upper end of the front panel. An electronic device with a card insertion slot according to claim 1 or 2,
The electronic device with a card insertion slot, wherein the rib has a long cross-sectional shape in the front-rear direction of the upper case.

Images