JP2016042415A - Portable terminal and switch assembly - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a portable terminal and a switch assembly in which a contact switch can be normally pushed irrespective of the press position to a press target member.SOLUTION: A portable terminal has a switch assembly, and a housing in which the switch assembly is mounted. The switch assembly has a base material, a contact switch fixed to the base material, and an elastic cover. The elastic cover has a cylindrical portion which is secured to the base material so as to surround the contact switch, a flexible planar portion extending from an inner surface of the cylindrical portion which confronts the periphery of the contact switch, and a rising portion which rises from the planar portion along the inner surface of the cylindrical portion. The elastic cover is provided to the tip of the rising portion, and has a plate-like portion for supporting a press target member for pushing the contact switch under the state that the contact switch and the press target member are confronted to each other. The elastic cover has a protrusion portion which protrudes from the rising portion to the inner surface of the cylindrical portion, and abuts against the planar portion when planar portion elastically sags in the direction to the rising portion interlockingly with movement of the press target member to the contact switch.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a portable terminal and a switch assembly.

  Conventionally, a portable member such as a tablet terminal is provided with a pressed member that receives a pressing force, and various operations are performed by the user pressing or swiping the pressed member. The pressed member includes various keys that are input interfaces, a fingerprint sensor, and the like. As a structure for performing various operations by pressing against a member to be pressed, for example, a key structure using a contact switch is known.

  The key structure using the contact switch is a contact switch fixed on a substrate such as a printed circuit board, and is attached to the substrate so as to surround the contact switch, and supports the key top while facing the contact switch. And an elastic cover. A pusher is formed on the surface of the key top on the contact switch side. When the user presses the key top, the elastic cover is bent by the pressing force, and the presser of the key top moves in the direction of the contact switch to press the contact switch.

  As a contact switch, for example, a dome switch in which a conductive material is formed in a dome shape is known.

Japanese Utility Model Publication No. 5-6587 Japanese Unexamined Patent Publication No. 7-262872 JP 2000-315444 A

  However, the above-described conventional key structure has a problem that it is difficult to normally press the contact switch depending on the position of pressing against the pressed member.

  That is, in the conventional key structure, when the position of the edge of the key top, which is a member to be pressed, is pressed by the user, the key top is tilted from the horizontal direction due to the flexure of the elastic cover. Movement is hindered. If the movement of the key top in the direction of the contact switch is prevented, the key top position is shifted relative to the position of the contact switch, and as a result, the key top pusher may normally press the contact switch May be difficult. Such a problem can also occur when a fingerprint sensor is used as the pressed member.

  The disclosed technology has been made in view of the above, and an object thereof is to provide a portable terminal and a switch assembly that can normally press a contact switch regardless of the position of pressing against a member to be pressed.

  In one aspect, a mobile terminal disclosed in the present application includes a switch assembly and a housing that houses the switch assembly. The switch assembly includes a base material, a contact switch fixed to the base material, and an elastic cover. The elastic cover includes a cylindrical portion attached to the base so as to surround the contact switch, and a flexible planar portion extending from an inner surface of the cylindrical portion facing the periphery of the contact switch. And a rising portion rising from the planar portion along the inner surface of the cylindrical portion. The elastic cover includes a plate-like portion that is provided at a tip of the rising portion and supports the pressed member in a state where the contact switch and a pressed member for pressing the contact switch are opposed to each other. . The elastic cover protrudes from the rising portion toward the inner surface of the cylindrical portion, and the planar portion moves toward the rising portion in conjunction with the movement of the pressed member toward the contact switch. When elastically bent, it has a protrusion that abuts against the planar portion.

  According to one aspect of the mobile terminal disclosed in the present application, there is an effect that the contact switch can be normally pressed regardless of the position of pressing against the pressed member.

FIG. 1 is a perspective view showing the appearance of the tablet terminal of this embodiment. FIG. 2 is an exploded perspective view of the tablet terminal according to the present embodiment. FIG. 3 is an exploded perspective view of the switch assembly. FIG. 4 is a perspective view of the elastic cover of the switch assembly. FIG. 5 is a cross-sectional view showing a fitting state between the switch assembly and the annular protrusion of the inner case. FIG. 6 is a diagram for explaining the angle of the first slope with respect to the rising portion. FIG. 7 is a diagram illustrating the behavior of the elastic cover of the comparative example when a pressing force is applied to the edge of the fingerprint sensor by swiping the fingerprint sensor with a user's finger. FIG. 8 is a diagram illustrating the behavior of the elastic cover according to the embodiment when the pressing force is applied to the edge of the fingerprint sensor by swiping the fingerprint sensor with the user's finger. FIG. 9 is a diagram illustrating the behavior of the elastic cover when a pressing force is applied to the center of the fingerprint sensor by pressing the center of the fingerprint sensor with a user's finger. FIG. 10 is a diagram illustrating the behavior of the elastic cover when a pressing force is applied to the edge of the fingerprint sensor by pressing the edge of the fingerprint sensor with a user's finger.

  Hereinafter, embodiments of a portable terminal and a switch assembly disclosed in the present application will be described in detail with reference to the drawings. The disclosed technology is not limited by this embodiment. For example, in the following embodiments, a tablet terminal will be described as an example of a mobile terminal. However, the present invention is not limited thereto, and any mobile terminal including a contact switch and a pressed member for pressing the contact switch may be used. Any portable terminal may be used.

  FIG. 1 is a perspective view showing the appearance of the tablet terminal of this embodiment. FIG. 2 is an exploded perspective view of the tablet terminal according to the present embodiment. As shown in FIGS. 1 and 2, the tablet terminal 100 of this embodiment includes an outer case 110, an inner case 130, a display unit 150, and a switch assembly 170.

  The outer case 110 is formed, for example, in a box shape with one surface opened.

  The inner case 130 has a top plate 131 formed in a frame shape corresponding to the opening of the outer case 110. The top plate 131 is provided with an outer wall 132 that overlaps with the outer case 110. The inner case 130 is combined with the outer case 110 in a state where the packing 111 is inserted between the tip of the outer wall 132 and the bottom surface of the outer case 110. Further, the top plate 131 is provided with an inner wall 133 that divides a space surrounded by the outer wall 132 into two spaces. The space surrounded by the outer wall 132 is separated by the inner wall 133 into a space inside the inner wall 133 and a space sandwiched between the inner wall 133 and the outer wall 132. The inner wall 133 is provided with a partition wall 134 that divides the space inside the inner wall 133 into two spaces along the thickness direction of the inner case 130. The partition 134 divides the space inside the inner wall 133 into a front space and a back space for housing various components. The display unit 150 is accommodated in the space on the front side of the partition wall 134. A space on the back side of the partition wall 134 accommodates a substrate 135 on which various electronic components and circuits are mounted. In addition, an opening is provided at the center of the partition wall 134, and the battery pack 136 is attached to the opening of the partition wall 134. Further, the switch assembly 170 is accommodated in a space between the inner wall 133 and the outer wall 132. Specifically, the inner case 130 includes an opening 137 formed in the top plate 131, and an annular protrusion 138 that protrudes from the periphery of the opening 137 to a space sandwiched between the inner wall 133 and the outer wall 132. The switch assembly 170 is fitted into the annular protrusion 138 of the inner case 130 in a state where a fingerprint sensor described later is exposed from the opening 137. The fitting state between the switch assembly 170 and the annular protrusion 138 of the inner case 130 will be described in detail later. The inner case 130 corresponds to an example of a “housing”.

  The display unit 150 is formed by bonding a display module 151 such as an LCD (Liquid Crystal Display) module and a touch panel 152 together. The display module 151 is accommodated in the front space of the partition wall 134, and the touch panel 152 is attached on the top plate 131 of the inner case 130 via a double-sided tape. Further, a notch 152 a formed in a shape that avoids the opening 137 is provided at an edge of the touch panel 152 that faces the opening 137.

  The switch assembly 170 is an assembly obtained by combining a contact switch and a member to be pressed for pressing the contact switch.

  Here, the structure of the switch assembly 170 and the fitting state between the switch assembly 170 and the annular protrusion 138 of the inner case 130 will be described in detail with reference to FIGS. FIG. 3 is an exploded perspective view of the switch assembly. FIG. 4 is a perspective view of the elastic cover of the switch assembly. FIG. 5 is a cross-sectional view showing a fitting state between the switch assembly and the annular protrusion of the inner case.

  As shown in FIG. 3, the switch assembly 170 includes a holder 210, a dome switch 220, a fingerprint sensor 230, a pusher 240, and an elastic cover 250.

  The holder 210 is a base material for fixing various components, and is fixed to the inner case 130 in a state where the switch assembly 170 and the annular protrusion 138 of the inner case 130 are fitted. The holder 210 is provided with an annular pedestal 211 to which the elastic cover 250 is attached. A flexible cable 212 is provided in an area surrounded by the base 211. The flexible cable 212 is folded back on the back surface of the holder 210 through a hole formed in a region surrounded by the base 211, extended along the holder 210, an intermediate portion is fixed by the holder 210, and is connected to the substrate 135. .

  The dome switch 220 is a contact switch in which a conductive material is formed in a dome shape. The dome switch 220 is fixed to the holder 210. Specifically, the dome switch 220 is fixed to an area surrounded by the base 211 of the holder 210 with the flexible cable 212 interposed between the dome switch 220 and the holder 210. The dome switch 220 is covered with an elastic cover 250 while being fixed to the holder 210.

  The fingerprint sensor 230 is a sensor that reads a fingerprint. The fingerprint sensor 230 is supported by the elastic cover 250 in a state where the dome switch 220 is covered by the elastic cover 250. A pusher 240 that penetrates the elastic cover 250 is attached to the surface of the fingerprint sensor 230 opposite to the surface on which the finger is placed. When the user presses or swipes the fingerprint sensor 230, the elastic cover 250 is elastically bent by the pressing force received by the fingerprint sensor 230, and the pusher 240 moves toward the dome switch 220 to press the dome switch 220. To do. The fingerprint sensor 230 and the pusher 240 are examples of a “pressed member”.

  The elastic cover 250 is an elastic member that covers the dome switch 220 while supporting the fingerprint sensor 230. As shown in FIGS. 4 and 5, the elastic cover 250 has a cylindrical portion 251 attached to the holder 210 so as to surround the periphery of the dome switch 220. An L-shaped sheet metal 251a is embedded in the tubular portion 251 in a cross-sectional view. The tubular portion 251 is attached to the holder 210 by bonding a part of the sheet metal 251a exposed from the bottom of the tubular portion 251 and the pedestal 211 of the holder 210 via a double-sided tape. The cylindrical portion 251 is elastically pressed against the annular protrusion 138 of the inner case 130 in a state where the switch assembly 170 and the annular protrusion 138 of the inner case 130 are fitted. As described above, the cylindrical portion 251 is elastically pressed against the annular protrusion 138 of the inner case 130, whereby the gap between the switch assembly 170 and the annular protrusion 138 of the inner case 130 is sealed by the cylindrical portion 251. .

  4 and 5, the elastic cover 250 includes a flexible planar portion 252 that extends from the inner surface of the tubular portion 251 that faces the periphery of the dome switch 220. The edge of the planar portion 252 forms a rectangular opening at a position corresponding to the periphery of the dome switch 220. In other words, the planar portion 252 has the edge of the planar portion 252 forming a rectangular opening as a free end, and the base end portion of the planar portion 252 disposed on the inner surface of the tubular portion 251 as a fixed end. The cylindrical portion 251 extends from the inner surface so that a cantilever beam is formed.

  The elastic cover 250 includes a rising portion 253 that rises from the planar portion 252 along the inner surface of the tubular portion 251 as shown in FIGS. 4 and 5. Specifically, the rising portion 253 rises in a rectangular frame shape from the planar portion 252 along the inner surface of the tubular portion 251. Thereby, the rising portion 253 forms a rectangular frame having an outer surface facing the inner surface of the cylindrical portion 251.

  The elastic cover 250 has a plate-like portion 254 at the tip of the rising portion 253 as shown in FIGS. 4 and 5. The plate-like portion 254 is embedded with a sheet metal 254 a having an opening at the center, and the upper surface of the sheet metal 254 a is exposed from the plate-like portion 254. Double-sided tape 254b is affixed on the upper surface of sheet metal 254a. The plate-like portion 254 supports the fingerprint sensor 230 in a state where the dome switch 220 and the fingerprint sensor 230 that is a pressed member are opposed to each other. Specifically, the plate-like portion 254 passes through the pusher 240 attached to the fingerprint sensor 230 from the opening of the metal plate 254a to the dome switch 220 side, and on the upper surface of the metal plate 254a via the double-sided tape 254b. 230 is supported. When a pressing force is applied to the fingerprint sensor 230, the fingerprint sensor 230 moves toward the dome switch 220. Then, in conjunction with the movement of the fingerprint sensor 230 in the direction of the dome switch 220, the plate-like portion 254 and the rising portion 253 move in the direction of the dome switch 220, and the planar portion 252 moves in the direction of the rising portion 253. Elastically bends. When the pressing force to the fingerprint sensor 230 is released, the plate-like portion 254 and the rising portion 253 move in the opposite direction to the dome switch 220, and the planar portion 252 is restored to the shape before elastically bending. To do.

  Further, as shown in FIGS. 4 and 5, the elastic cover 250 has a protruding portion 255 that protrudes from the rising portion 253 toward the inner surface of the cylindrical portion 251. In the present embodiment, the plurality of projecting portions 255 protrude from the rising portion 253 forming the rectangular frame toward the inner surface of the tubular portion 251. For example, as shown in FIG. 4, it is assumed that the two protrusions 255 protrude from the long side of the rising part 253 having a rectangular frame shape. In this case, the two projecting portions 255 project toward the inner surface of the tubular portion 251 from a position closer to the end portion of the long side than the center of the long side of the rising portion 253. The protrusion 255 comes into contact with the planar portion 252 when the planar portion 252 is elastically bent toward the rising portion 253 in conjunction with the movement of the fingerprint sensor 230 in the direction of the dome switch 220. When the protrusion 255 comes into contact with the planar portion 252, bending of the planar portion 252 in the direction of the rising portion 253 is suppressed.

  A portion of the protrusion 255 that comes into contact with the planar portion 252 is formed with a first slope 255 a that increases in distance from the planar portion 252 as it approaches the inner surface of the tubular portion 251. When the dome switch 220 is pressed by the pusher 240, the distance between the portion farthest from the planar portion 252 of the protrusion 255 and the planar portion 252 is the portion pressed by the pusher 240 of the dome switch 220. Is equal to the maximum distance traveled. Hereinafter, the maximum value of the distance traveled by the portion pressed by the pusher 240 of the dome switch 220 is referred to as “switch stroke”. The angle of the first inclined surface 255a with respect to the rising portion 253 is determined based on the switch stroke and the protruding amount of the protruding portion 255 from the rising portion 253.

  FIG. 6 is a diagram for explaining the angle of the first slope with respect to the rising portion. As shown in FIG. 6, the distance between the portion of the protrusion 255 farthest from the planar portion 252 and the planar portion 252 is defined as “a”, and the protrusion amount of the protrusion 255 from the rising portion 253 is “ h ”. Then, the angle “θ” of the first inclined surface 255a with respect to the rising portion 253 is expressed by the following equation (1).

  Here, as described above, the distance “a” between the portion of the protrusion 255 farthest from the planar portion 252 and the planar portion 252 is equal to the switch stroke. The switch stroke is defined as “s”. Then, the angle “θ” of the first slope 255 a with respect to the rising portion 253 is determined based on the switch stroke “s” and the protrusion amount “h” of the protruding portion 255 from the rising portion 253. . That is, the following formula (2) is derived from the above formula (1).

  Returning to FIG. 4 and FIG. The protruding portion 255 protrudes from the rising portion 253 toward the inner surface of the cylindrical portion 251 so as to be close to the edge of the opening 137 of the inner case 130. The edge of the opening 137 is an example of “a part of the housing”. In the portion of the protrusion 255 that is close to the edge of the opening 137, a second inclined surface 255 b is formed such that the distance from the edge of the opening 137 increases as the distance from the planar portion 252 increases. When the pressing force to the fingerprint sensor 230 is released, when the plate-like portion 254 and the rising portion 253 move in the opposite direction to the dome switch 220, the second inclined surface 255b and the edge of the opening 137 are separated. Make sliding contact. Thereby, the situation where the projection part 255 is caught in the edge of the opening part 137 is avoided.

  Next, the behavior of the elastic cover 250 when a pressing force is applied to the edge of the fingerprint sensor 230 by swiping the fingerprint sensor 230 with a user's finger will be described with reference to FIGS. FIG. 7 is a diagram illustrating the behavior of the elastic cover of the comparative example when a pressing force is applied to the edge of the fingerprint sensor by swiping the fingerprint sensor with a user's finger. FIG. 8 is a diagram illustrating the behavior of the elastic cover according to the embodiment when the pressing force is applied to the edge of the fingerprint sensor by swiping the fingerprint sensor with the user's finger. The elastic cover 250-1 of the comparative example shown in FIG. 7 is different from the elastic cover 250 of the embodiment shown in FIG. 8 in that the protrusions 255 are not provided.

  In the elastic cover 250-1 shown in FIG. 7, when the pressing force P <b> 1 is applied to the edge of the fingerprint sensor 230 by swiping the fingerprint sensor 230 with the user's finger in the direction of the arrow S <b> 1, the planar portion 252 is raised. Elastically bends in the direction of 253. Then, since the fingerprint sensor 230 is tilted from the horizontal direction in the direction of the arrow R1 due to the bending of the planar portion 252, the movement of the fingerprint sensor 230 toward the dome switch 220 is prevented. As a result, the position of the fingerprint sensor 230 is shifted relative to the position of the dome switch 220, and the dome switch 220 is not normally pressed by the pusher 240.

  On the other hand, in the elastic cover 250 shown in FIG. 8, the pressing force P <b> 1 is applied to the edge of the fingerprint sensor 230 by swiping with the user's finger in the direction of the arrow S <b> 1, and the planar portion 252 When elastically deflecting in the direction, the protrusion 255 comes into contact with the planar portion 252. When the protrusion 255 comes into contact with the planar portion 252, bending of the planar portion 252 in the direction of the rising portion 253 is suppressed. By suppressing the bending of the planar portion 252 in the direction of the rising portion 253, the inclination of the fingerprint sensor 230 is suppressed. For this reason, relative displacement between the position of the fingerprint sensor 230 and the position of the dome switch 220 and the penetration of the fingerprint sensor 230 are eliminated, and the dome switch 220 is normally pressed by the pusher 240. Furthermore, a decrease in fingerprint reading accuracy by the fingerprint sensor 230 is reduced.

  Next, the behavior of the elastic cover 250 when a pressing force is applied to the center of the fingerprint sensor 230 by pressing the center of the fingerprint sensor 230 with the finger of the user will be described with reference to FIG. FIG. 9 is a diagram illustrating the behavior of the elastic cover when a pressing force is applied to the center of the fingerprint sensor by pressing the center of the fingerprint sensor with a user's finger.

  As shown in FIG. 9, when a pressing force P2 is applied to the center of the fingerprint sensor 230 by pressing the center of the fingerprint sensor 230 with a user's finger, the edge of the planar portion 252 that is a free end is applied. A force along the rising direction of the rising portion 253 works. Then, the fingerprint sensor 230 moves in the direction of the dome switch 220. In conjunction with the movement of the fingerprint sensor 230 in the direction of the dome switch 220, the rising portion 253 moves in the direction of the dome switch 220 together with the plate-like portion 254. Then, a force that rotates in the direction of arrow A1 acts on the edge of the planar portion 252 with the base end portion of the planar portion 252 as a fixed point serving as a fulcrum. Thereby, the planar portion 252 is elastically bent toward the rising portion 253. Further, when the planar portion 252 is elastically bent in the direction of the rising portion 253, the projecting portion 255 contacts the planar portion 252. When the protrusion 255 comes into contact with the planar portion 252, bending of the planar portion 252 in the direction of the rising portion 253 is suppressed. By suppressing the bending of the planar portion 252 in the direction of the rising portion 253, the inclination of the fingerprint sensor 230 is suppressed. In this way, since the planar portion 252 elastically bends in the direction of the rising portion 253, the reaction force corresponding to the pressing force P2 acts appropriately on the user's finger from the fingerprint sensor 230. The feeling is not hindered. Further, since the protrusion 255 abuts on the planar portion 252, there is no relative displacement between the position of the fingerprint sensor 230 and the position of the dome switch 220, and the fingerprint sensor 230 is not submerged. Pressed normally.

  Next, the behavior of the elastic cover 250 when a pressing force is applied to the edge of the fingerprint sensor 230 by pressing the edge of the fingerprint sensor 230 with a user's finger will be described with reference to FIG. FIG. 10 is a diagram illustrating the behavior of the elastic cover when a pressing force is applied to the edge of the fingerprint sensor by pressing the edge of the fingerprint sensor with a user's finger.

  As shown in FIG. 10, when the pressing force P3 is applied to the edge of the fingerprint sensor 230 by pressing the edge of the fingerprint sensor 230 with the finger of the user, the surface is at a position corresponding to the position where the pressing force P3 is applied. The shape portion 252 is elastically bent toward the rising portion 253. At this time, the protrusion 255 comes into contact with the planar portion 252. When the protrusion 255 comes into contact with the planar portion 252, bending of the planar portion 252 in the direction of the rising portion 253 is suppressed. Here, since the distance between the portion of the protrusion 255 farthest from the planar portion 252 and the planar portion 252 is equal to the switch stroke of the dome switch 220, the deflection of the planar portion 252 in the direction of the rising portion 253 is performed. Is suppressed so as to ensure a switch stroke. By suppressing the bending of the planar portion 252 in the direction of the rising portion 253, the inclination of the fingerprint sensor 230 in the direction of the arrow A2 is suppressed. For this reason, relative displacement between the position of the fingerprint sensor 230 and the position of the dome switch 220 and the penetration of the fingerprint sensor 230 are eliminated, and the dome switch 220 is normally pressed by the pusher 240.

  As described above, in the tablet terminal of this embodiment, when the planar portion 252 of the elastic cover 250 bends in the direction of the rising portion 253 in conjunction with the movement of the fingerprint sensor 230 in the direction of the dome switch 220, the rising portion 253 The protruding portion 255 contacts the planar portion 252. For this reason, the bending of the planar portion 252 in the direction of the rising portion 253 is suppressed, the inclination of the fingerprint sensor 230 is suppressed, and the relative deviation between the position of the fingerprint sensor 230 and the position of the dome switch 220 is eliminated. As a result, according to the tablet terminal of the present embodiment, the dome switch 220 can be normally pressed regardless of the position of pressing against the fingerprint sensor 230.

  Moreover, since the tablet terminal of the present embodiment can maintain the relative position between the position of the fingerprint sensor 230 and the position of the dome switch 220, it is possible to reduce a decrease in fingerprint reading accuracy.

DESCRIPTION OF SYMBOLS 100 Tablet terminal 110 Outer case 130 Inner case 131 Top plate 132 Outer wall 133 Inner wall 134 Partition 137 Opening 138 Annular protrusion 170 Switch assembly 210 Holder 220 Dome switch 230 Fingerprint sensor 240 Pusher 250 Elastic cover 251 Cylindrical part 252 Planar part 253 Rising part 254 Plate-like part 255 Protruding part 255a First slope 255b Second slope

Claims (7)

A base member, a contact switch fixed to the base member, a cylindrical portion attached to the base member so as to surround the contact switch, and an inner surface of the cylindrical portion facing the periphery of the contact switch A flexible planar portion that extends, a rising portion that rises from the planar portion along the inner surface of the tubular portion, and a contacted switch that is provided at the tip of the rising portion and receives a pressing force A plate-like portion that supports the member to be pressed in a state of facing the member, and a protrusion protruding from the rising portion toward the inner surface of the cylindrical portion, and the member to be pressed moves in the direction of the contact switch. A switch assembly comprising an elastic cover having a protrusion that abuts against the planar portion when the planar portion is flexibly elastically bent in the direction of the rising portion;
A portable terminal comprising: a casing that accommodates the switch assembly.   The distance between the portion of the protrusion that is farthest from the planar portion and the planar portion is pressed by the pressed member of the contact switch when the contact switch is pressed by the pressed member. The mobile terminal according to claim 1, wherein the mobile terminal is equal to a switch stroke that is a maximum value of a moving distance.   2. The first slope according to claim 1, wherein a distance between the protruding portion and the surface portion increases as the distance from the inner surface of the cylindrical portion increases. 2. The mobile terminal according to 2.   The angle of the first slope with respect to the rising portion is determined based on the switch stroke and a protruding amount of the protruding portion from the rising portion. Mobile devices. The protruding portion protrudes from the rising portion toward the inner surface of the cylindrical portion so as to be close to a part of the casing,
2. The second inclined surface is formed at a portion of the protruding portion adjacent to the part of the casing, and a second inclined surface whose distance from the part of the casing increases as the distance from the planar part increases. The portable terminal as described in any one of -4. The rising portion rises from the planar portion into a rectangular frame shape along the inner surface of the cylindrical portion,
The plurality of protrusions protrude from the position closer to the end of the long side than the center of the long side of the long side of the rising portion toward the inner surface of the cylindrical part. Item 6. The mobile terminal according to any one of Items 1 to 5. A substrate;
A contact switch fixed to the substrate;
A cylindrical portion attached to the base so as to surround the contact switch, a flexible planar portion extending from an inner surface of the tubular portion facing the periphery of the contact switch, and the planar portion The rising member rises along the inner surface of the cylindrical portion, and is provided at the tip of the rising portion, and supports the pressed member in a state where the contact switch and the pressed member receiving the pressing force are opposed to each other. The plate-like portion and the rising portion protrude toward the inner surface of the cylindrical portion, and the planar portion is elastic in the direction of the rising portion in conjunction with the movement of the pressed member in the direction of the contact switch. And a resilient cover having a protrusion that abuts against the planar portion when bent flexibly.

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