JP5659891B2 - Electronic equipment - Google Patents

Description

  The present invention relates to an electronic device.

  2. Description of the Related Art Conventionally, electronic devices including operation keys such as ETC (ETC is a registered trademark) in-vehicle device are known (for example, see Patent Document 1).

JP 2010-251249 A

In the apparatus described in Patent Document 1, a substrate is disposed so as to be orthogonal to a design surface (operation surface), and a switch that is turned on and off by pressing an operation key disposed on the design surface on the substrate. The type in which the movable part moves in the direction perpendicular to the substrate surface is mounted. The reason why such a type of switch is used is to reduce defects due to the solder peeling of the switch. In the apparatus described in Patent Document 1, when the operation key is pressed in a direction perpendicular to the design surface, the operation key rotates around the fulcrum provided on the operation key as a rotation center, and the direction orthogonal to the design surface This force is converted in a direction perpendicular to the component mounting surface of the board, so that the switch is turned on and off.

  However, with the configuration in which the operation key rotates with the fulcrum portion as the rotation center in this way, when the user performs a pressing operation from the vicinity of the fulcrum portion toward the fulcrum portion, a moment necessary for turning on and off the switch is obtained. However, there is a problem that the switch cannot be stably turned on and off.

  Therefore, as shown in FIG. 8, a spring member 26 connected to the operation portion (key top) of the operation key is provided, and the direction of the pressing force received by the key top 221 using the elastic deformation of the spring member 26 is determined. A key structure in which the switch 40a is turned on and off by converting the switch 40a to turn on and off is conceivable.

  However, in such a key structure having no fulcrum, when the key top 221 receives a pressing force in the directions of arrows A and B in FIG. 8, the switch 40a can be stably turned on and off. However, when the key top 221 receives a pressing force in the direction of arrow C in FIG. 8 (diagonally upward direction), the moment required to turn on / off the switch 40a is not obtained, and the switch 40a is stably turned on / off. The problem that it becomes impossible to make it occur arises.

  If the key top 221 is not protruded outward from the design surface 2, the key top 221 can be prevented from receiving a pressing force in an obliquely upward direction. In many cases, it is installed at a relatively low position. If the key top 221 does not protrude outward from the design surface 2, the position of the operation key is difficult to understand.

  The present invention has been made in view of the above problems, and it is an object of the present invention to make it easier to recognize the position of an operation key and to move a movable part of a switch more stably.

To achieve the above object, the invention described in claim 1 includes a case (10) having a design surface (2) and a substrate (10) accommodated in the case (10) so as to be orthogonal to the design surface (2). 40), a switch (40a, 40b) mounted on the component mounting surface of the substrate (40) so that the movable portion moves in a direction orthogonal to the component mounting surface, and a pressing force by a user operation. The key top (221) disposed so as to protrude outward from the design surface, and the design surface (connected to the key top (221) and the key top (221) together with the key top (221) according to the pressing force received by the key top (221) 2) The pressing member (222) displaced in the direction orthogonal to the direction and the back side of the key top (221) are elastically deformed according to the pressing force received by the key top (221), and the pressing member (222) is Switch (40a A spring member (25, 26) to be displaced in the direction of moving the movable portion of 40b), the equipped, and upward direction from the bottom surface of the case (10) to the top surface, a downward direction from top to bottom In this case, the connection point between the back side of the key top (221) and the spring member (25, 26) is shifted to the switch (40a, 40b) side from the center in the vertical direction of the key top (221). A protrusion (100) protruding inside the case (10) is formed on the inner surface of the case (10) orthogonal to (2), and the key top (221) receives a pressing force and receives a pressing member ( 222) is displaced, the protrusion (100) comes into contact with the pressing member (222), and the pressing member (222) is guided in a direction to move the movable part of the switches (40a, 40b). It is characterized by being.

  According to such a structure, the protrusion part (100) which protrudes inside the said case (10) is formed in the inner surface of the case (10) orthogonal to the design surface (2), and it is outside the design surface. When the key top (221) arranged so as to protrude in the position receives a pressing force and the pressing member (222) is displaced, the protruding portion (100) contacts the pressing member (222) and the pressing member (222) Is guided in a direction to move the movable part of the switch (40a, 40b), so that the position of the operation key can be easily recognized and the movable part of the switch can be moved more stably. .

  According to the second aspect of the present invention, as the key top (221) receives the pressing force and the pressing member (222) is displaced in the direction of the pressing force, the pressing member (222) is switched to the switch (40a, 40b). ) Is characterized in that the portion (100a) in contact with the pressing member (222) in the protruding portion (100) is inclined so as to move gradually in the moving direction of the movable portion.

  According to such a configuration, as the key top (221) receives the pressing force and the pressing member (222) is displaced in the direction of the pressing force, the pressing member (222) moves the switches (40a, 40b). Since the portion (100a) in contact with the pressing member (222) in the projecting portion (100) is inclined so as to gradually move in the direction in which the portion is moved, the pressing force is a movable portion of the switch (40a, 40b). Therefore, it is possible to realize a comfortable feeling without causing a feeling of rattling during operation.

  In order to reliably guide the push member (222) in the direction in which the movable part of the tact switch (40a, 40b) is moved, the angle of inclination is the same as that of the case (10). The angle is preferably 20 to 30 degrees with respect to the inner surface.

  In addition, the code | symbol in the bracket | parenthesis of each means described in this column and the claim shows the correspondence with the specific means as described in embodiment mentioned later.

1 is a perspective view of an electronic device according to an embodiment of the present invention. It is a front view of an ETC onboard equipment. It is a disassembled perspective view of an ETC onboard equipment. It is the figure which looked at the key member from the upper side. It is the perspective view which looked at the part from the front-end | tip of the arm part of a base | substrate part to the operation key from diagonally upward. FIG. 3 is a diagram showing a schematic cross-sectional configuration along the line DD in FIG. 2. It is the figure which looked at the protrusion part shown by FIG. 6 from diagonally downward direction. It is a figure for demonstrating a subject.

  FIG. 1 is a perspective view of an electronic device according to an embodiment of the present invention. This electronic apparatus is configured as a so-called built-in type ETC vehicle-mounted device 1. The present ETC on-vehicle device 1 is assembled to an instrument panel of a vehicle and communicates with a road device based on information on a card (not shown) to perform a toll road toll payment process and the like.

  The bracket 80 is a metal member for fixing the case 10 formed by assembling the resin upper case 10a and the resin lower case 10b to the vehicle. The bracket 80 is disposed so as to surround the upper surface, side surface, and bottom surface of the case 10. The bracket 80 has a screw hole for fixing to the vehicle.

  The design surface (operation surface) 2 is provided with an operation key 22a for adjusting the volume and an operation key 22b for instructing voice guidance of the usage history. When the operation key 22a is operated by the user, the volume of voice guidance output from the speaker is changed stepwise. Further, when the operation key 22b is operated by the user, voice guidance of the usage history is started.

  In FIG. 2, the front view of this ETC onboard equipment 1 is shown. As shown in the figure, the design surface 2 is provided with a card insertion slot 60 for inserting a card and an eject button 50 for taking out the card in addition to the operation keys 22a and 22b.

  In FIG. 3, the disassembled perspective view of this ETC onboard equipment 1 is shown. With reference to this figure, the structure of this ETC onboard equipment 1 is demonstrated.

  The ETC vehicle-mounted device 1 includes an upper case 10a, a lower case 10b, a key member 20, a light guide lens 30, a buffer member 35, a substrate 40, a light guide lens 45, an eject button 50, a card connector 60, and a bracket 80. . The substrate 40 is accommodated in the case 10 so as to be orthogonal to the design surface 2.

  Hereinafter, the direction from the bottom surface to the top surface of the case 10 formed by assembling the upper case 10a and the lower case 10b is referred to as the upward direction, the direction from the top surface to the bottom surface is referred to as the downward direction, and the direction from the front surface to the back surface is referred to as the depth direction. .

  Inside the case 10, an integrally formed ABS resin key member 20 is assembled and fixed to the front side end. The key member 20 is disposed so as to protrude outward from the design surface 2 through the base portion 21 fixed to the upper case 10a and the openings 2a and 2b formed in the design surface 2, and is provided from the outside to the user. Are provided with two operation keys 22a, 22b and the like which are displaced by being pressed.

  The base portion 21 is for transmitting a sound emitted from a speaker 42, which will be described later, to the design surface 2 side, and is hollow inside.

  A light guide lens 30 and a buffer member 35 are disposed immediately below the key member 20. Further, a substrate 40 on which various circuits (arithmetic circuit, wireless circuit) are mounted is disposed immediately below the light guide lens 30 and the buffer member 35. On the upper surface of the substrate 40, two tact switches 40a and 40b, two LEDs 41a and 41b, and a speaker 42 are arranged. As the tact switches 40a and 40b, the type in which the movable part moves in a direction orthogonal to the component mounting surface and is turned on / off is used.

  The operation unit 22a of the key member 20 is disposed directly above the tact switch 40a, and the operation unit 22b of the key member 20 is disposed directly above the tact switch 40b. When the operation portions 22a and 22b are displaced in response to a pressing force by a user operation, the movable portions of the tact switches 40a and 40b move, and the tact switches 40a and 40b are turned on and off, respectively.

  The light guide lens 30 is disposed directly above the LEDs 41a and 41b. The light emitted from the LEDs 41 a and 41 b is guided to the design surface 2 by the light guide lens 30.

  A card connector 60 into which a card is inserted is disposed immediately below the substrate 40. The card connector 60 detects insertion of a card and ejection of the card, and reads and writes information with respect to the inserted card in accordance with control from a circuit on the substrate 40.

  The eject button 50 protrudes when a card is inserted into the card connector 60. When the user presses the eject button 50 with the card inserted into the card connector 60, the card A card is ejected from the connector 60.

  Next, the structure of the key member 20 will be described with reference to FIG. FIG. 4 is a view of the key member 20 as viewed from above. In the figure, the left side is the front side of the ETC vehicle-mounted device 1. As shown in the drawing, the key member 20 includes spring members 25 and 26 that connect the operation keys 22a and 22b to the base body 21 in addition to the base body 21 and the operation keys 22a and 22b.

  The operation keys 22a and 22b have a key top 221 and a pressing member 222, respectively.

  The key top 221 receives a pressing force by a user operation and is disposed so as to protrude outward from the design surface 2.

  The pressing member 222 is connected to the key top 221 and is displaced together with the key top 221 in a direction (depth direction) perpendicular to the design surface according to the pressing force received by the key top 221.

  The base portion 21 is engaged with the inner surface of the upper case 10a by a claw provided at the rear side end portion of the central portion 21a that swells to the right side of the base portion 21, so that fixing to the upper case 10a is realized. Further, the base portion 21 has two arm portions 21b extending from the central portion 21a bulging to the right side of the base portion 21 to the left and right (up and down in FIG. 4). The base portion 21 and the spring members 25 and 26 are integrally connected by these arm portions 21b.

Next, of the key member 20, the structure of the portion from the tip of the arm portion 21b of the base portion 21 to the operating keys 22 a, 22 b will be described in detail. And structure from the distal end of the arm portion 21b of the base portion 21 to the operating keys 22 a, since the structure of the tip of the arm portion 21b of the base portion 21 to the operation keys 22 b in a symmetrical relationship, will be described only for one .

Figure 5 shows a perspective view of the portion from the tip of the arm portion 21b of the base portion 21 to the operating keys 22 a, 22 b obliquely from above.

  A pressing member 222 and two curved spring members 25 and 26 are connected to the back side of the key top 221. The two spring members 25 and 26 are disposed so as to be positioned on the left and right of the pressing member 222.

  One end side of the spring members 25 and 26 is connected to the back surface (the surface in the depth direction) of the key top 221, and the other end side of the spring members 25 and 26 is connected to the stopper 23.

  The connection point between the back surface side of the key top 221 and the spring members 25 and 26 is shifted downward from the center of the key top 221 in the vertical direction.

  FIG. 6 shows a schematic cross-sectional configuration along the line DD in FIG. In FIG. 6, the schematic cross-sectional configuration of the operation key 22b is shown, but the schematic cross-sectional configuration of the operation key 22a is the same.

  A protrusion 100 is formed on the inner surface of the upper case 10a so as to protrude downward from the upper case 10a. This protrusion 100 is for guiding the pressing member 222 in the direction in which the movable parts of the tact switches 40a and 40b are moved when the key top 221 receives a pressing force and is displaced in a direction perpendicular to the design surface 2. It is.

  As shown in the figure, the projecting portion 100 is inclined on the side surface on the design surface 2 side. In order to reliably guide the pressing member 222 in the direction in which the movable parts of the tact switches 40a and 40b are moved, the angle of the inclined portion (inclination angle) of the protrusion 100 is 20 with respect to the lower inner surface of the upper case 10a. It is preferable to be in the range of 30 degrees to 30 degrees. In the present embodiment, the angle is 25 degrees in consideration of manufacturing variations. Note that if the inclination angle of the inclined portion of the protruding portion 100 is too large, the operational feeling deteriorates. Further, if the inclination angle of the inclined portion of the projecting portion 100 is too small, the push member 222 cannot be sufficiently moved in the direction in which the movable portions of the tact switches 40a and 40b are moved.

  Further, when the key top 221 is not pressed, that is, when the spring members 25 and 26 are not elastically deformed, the corner portion 222a formed on the upper portion of the pressing member 222 is not in contact with the protruding portion 100. It is supposed to be arranged in.

  Further, even when the key top 221 is pressed and the pressing member 222 is displaced to the most depth side, the depth side surface (the right side surface in FIG. 6) of the pressing member 222 does not contact the stopper 23 and the tact switch The dimensions of each part of the key member 20 are determined so that the movable parts 40a and 40b can be moved.

  FIG. 7 shows a view of the protrusion 100 shown in FIG. 6 as viewed obliquely from below. As shown in the figure, the protrusion 100 has a certain width W in the left-right direction of the ETC on-vehicle device 1. This width W is slightly shorter than the width in the left-right direction of the recess E formed in the upper part of the pressing member 222 shown in FIG. The protrusion 100 is arranged in a recess E formed in the upper part of the pressing member 222 shown in FIG.

  In the configuration described above, when the key top 221 receives a pressing force from the direction (arrow A) perpendicular to the design surface 2 and the key top 221 and the pressing member 222 are displaced in the arrow A direction, the spring members 25 and 26 are bent. . At this time, the connection point between the back surface side of the key top 221 and the spring members 25 and 26 is shifted downward from the center of the key top 221 in the vertical direction, so that it is on the depth side (right side in FIG. 6) of the pressing member 222. The part is displaced in a direction (lower side in FIG. 6) in which the movable parts of the tact switches 40a and 40b are moved.

  Thus, the spring members 25 and 26 are elastically deformed according to the pressing force received by the key top 221 and move the pressing member 222 through the movable parts of the tact switches 40a and 40b as shown by the arrow F in FIG. Displace in the direction to be

  When the pressing member 222 is displaced in the direction of arrow A together with the key top 221, the corner portion 222a formed on the upper portion of the pressing member 222 comes into contact with the protruding portion 100, and the pressing member 222 moves the movable parts of the tact switches 40a and 40b. Guided in the direction of movement.

  In this way, the movable parts of the tact switches 40a and 40b can be reliably moved in response to a pressing operation in which the key top 221 is orthogonal to the design surface 2 (arrow A direction).

  Further, when the key top 221 no longer receives the pressing force, the spring members 25 and 26 act so as to return to their original shapes, so that the pressing member 222 moves in a direction away from the movable part of the tact switches 40a and 40b. The top 221 also returns to the original position.

  The same operation is performed when the key top 221 receives a pressing force obliquely upward (arrow B direction) with respect to the design surface 2 and the pressing member 222 is displaced in the arrow A direction together with the key top 221. The movable parts of the tact switches 40a and 40b can be reliably moved.

  Further, when the key top 221 receives a pressing force obliquely downward (arrow C direction) with respect to the design surface 2, as indicated by the arrow F in FIG. The function of converting the pressing force of the tact switch 40a, 40b into the direction in which the movable part of the tact switch 40a is moved does not sufficiently function, and the moment required to move the movable part of the tact switch 40a, 40b cannot be obtained. 40a and 40b cannot be stably turned on / off.

  However, when the key top 221 receives a pressing force obliquely downward (arrow C direction) with respect to the design surface 2 and the pressing member 222 is displaced together with the key top 221, a corner portion 222 a formed on the upper portion of the pressing member 222. Comes into contact with the protruding portion 100 and the pushing member 222 is guided in the direction of moving the movable portions of the tact switches 40a and 40b, so that the movable portions of the tact switches 40a and 40b can be moved reliably.

  According to the configuration described above, the protruding portion 100 that protrudes inside the case 10 is formed on the inner surface of the case 10 that is orthogonal to the design surface 2, and the key is disposed so as to protrude outward from the design surface. When the top 221 receives a pressing force and the pressing member 222 is displaced, the protrusion 100 comes into contact with the pressing member 222 and the pressing member 222 is guided in a direction to move the movable parts of the switches 40a and 40b. Therefore, the position of the operation key can be easily recognized and the movable part of the switch can be moved more stably.

  In addition, as the key top 221 receives the pressing force and the pressing member 222 is displaced in the direction of the pressing force, the pressing member 222 gradually moves in the direction in which the movable parts of the switches 40a and 40b are moved. Since the portion 100a in contact with the pressing member 222 in the portion 100 is inclined, the pressing force is continuously transmitted to the movable portions of the switches 40a and 40b, so that it is comfortable without feeling a rattling at the time of operation. Feeling can be realized.

  In order to surely guide the push member 222 in the direction in which the movable parts of the tact switches 40 a and 40 b are moved, the inclination angle is preferably 20 degrees to 30 degrees with respect to the inner surface of the case 10.

  In addition, this invention is not limited to the said embodiment, Based on the meaning of this invention, it can implement with a various form.

  For example, in the above-described embodiment, the built-in type ETC on-vehicle device has been described as an example, but the present invention is not limited to the built-in type ETC on-vehicle device. Moreover, it is not limited to an ETC vehicle-mounted apparatus, It can also apply to the various electronic devices provided with the operation key.

  Moreover, in the said embodiment, although the key member 20 was comprised using ABS resin, it is not limited to ABS resin.

  Moreover, in the said embodiment, although case 10a, 10b was comprised using resin, it is not limited to resin, For example, it is good also as metal. In this case, the protruding portion 100 can be formed by cutting.

DESCRIPTION OF SYMBOLS 1 ETC onboard equipment 2 Design surface 10 Case 10a Upper case 10b Lower case 20 Key member 22a, 22b Operation key 25, 26 Spring member 40 Substrate 40a, 40b Tact switch 100 Protruding part 221 Key top 222 Push member

Claims (3)

A case (10) having a design surface (2);
A substrate (40) housed in the case (10) so as to be orthogonal to the design surface (2);
Switches (40a, 40b) mounted on the component mounting surface of the substrate (40) so that the movable part moves in a direction orthogonal to the component mounting surface;
A key top (221) that receives a pressing force by a user operation and is arranged so as to protrude outward from the design surface;
A pressing member (222) connected to the key top (221) and displaced in a direction orthogonal to the design surface (2) together with the key top (221) according to a pressing force received by the key top (221);
It is connected to the back side of the key top (221), elastically deforms according to the pressing force received by the key top (221), and moves the pressing member (222) to the movable part of the switch (40a, 40b). Spring members (25, 26) that are displaced in the direction,
When the direction from the bottom surface to the top surface of the case (10) is the upward direction, and the direction from the top surface to the bottom surface is the downward direction,
The connection point between the back side of the key top (221) and the spring member (25, 26) is shifted to the switch (40a, 40b) side from the vertical center of the key top (221),
On the inner surface of the case (10) orthogonal to the design surface (2), a projecting portion (100) projecting inside the case (10) is formed,
When the key top (221) receives a pressing force and the pressing member (222) is displaced, the protrusion (100) abuts on the pressing member (222) and the pressing member (222) becomes the switch. An electronic device characterized in that it is guided in a direction to move the movable part (40a, 40b).   As the key top (221) receives a pressing force and the pressing member (222) is displaced in the direction of the pressing force, the pressing member (222) moves the movable part of the switch (40a, 40b). 2. The electronic device according to claim 1, wherein a portion (100 a) in contact with the pressing member (222) of the projecting portion (100) is inclined so as to gradually move in the direction of movement.   The electronic device according to claim 2, wherein the inclination angle is 20 degrees to 30 degrees with respect to the inner surface of the case (10).

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