JP2019071254A - Waterproof type information processing device - Google Patents

Abstract

To provide a technology which inhibits damage of a seal part as one aspect.SOLUTION: A waterproof type information processing device 10 includes a housing 20, a switch 32, a pressing member 80, and a key top 60. The housing 20 includes an outer peripheral wall part 24 having a through hole 50. The switch 32 is disposed at an inner side of the outer peripheral wall part 24 of the housing 20 and faces the through hole 50. The pressing member 80 is inserted into the through hole 50 to move close to or away from the switch 32. The key top 60 is disposed at an outer side of the outer peripheral wall part 24 of the housing 20 and pushes the switch 32 through the pressing member 80. The pressing member 80 has a core member 82 and a seal part 94. The core member 82 is at least partially disposed in the through hole 50. The seal part 94 is provided on an outer peripheral surface 86A of the core member 82, is adhered to an inner peripheral surface 50A of the through hole 50, and slides relative to an inner peripheral surface 50A.SELECTED DRAWING: Figure 3

Description

  The technology disclosed in the present application relates to a waterproof information processing apparatus.

  There is an information processing apparatus provided with a case and a push button switch provided on the case (see, for example, Patent Document 1). This type of push button switch includes a switch, a push member, a seal material, and a key top.

  The switch is housed in a housing. The pressing member is inserted into the through hole formed in the outer peripheral wall of the housing and faces the switch. The sealing material protrudes from the outer peripheral surface of the pressing member and is fixed to the inner peripheral surface of the through hole. The sealing material seals the gap between the outer peripheral surface of the pressing member and the inner peripheral surface of the through hole. In addition, the key top is disposed outside the outer peripheral wall. The key top is pressed by the operator to press the switch via the pressing member.

JP 2012-028175 A

  Here, the above-described pressing member is suspended from the outer peripheral wall by the sealing material. Therefore, when the pressing member is pressed to the switch side by the key top, the sealing material is elastically deformed. Therefore, if the operator repeatedly presses the key top, the seal material may be broken.

  The technique which this application discloses aims at controlling breakage of a seal part as one side.

  In the technology disclosed in the present application, the waterproof information processing apparatus includes a housing, a switch, a pressing member, and a key top. The housing includes a wall having a through hole. The switch is disposed inside the wall of the housing and faces the through hole. The pushing member is inserted into the through hole and comes into and out of contact with the switch. The key top is disposed outside the wall of the housing and pushes the switch through the pushing member. The pressing member has a core member and a seal portion. The core member is at least partially disposed in the through hole. The seal portion is provided on the outer peripheral surface of the core member, is in close contact with the inner peripheral surface of the through hole, and slides on the inner peripheral surface.

  According to the technology disclosed in the present application, as one aspect, damage to the seal portion can be suppressed.

FIG. 1 is a perspective view showing a waterproof information processing apparatus according to an embodiment. FIG. 2 is an exploded perspective view showing the push button switch shown in FIG. FIG. 3 is an exploded cross-sectional view corresponding to the cross-sectional view taken along line 3-3 in FIG. 4 is a cross-sectional view taken along line 3-3 in FIG. 5A is a cross-sectional view taken along line 5A-5A of FIG. 5B is a cross-sectional view taken along line 5B-5B of FIG. 6 is a cross-sectional view corresponding to FIG. 4 showing a state in which the key top is pressed by the operator. FIG. 7 is a cross-sectional view corresponding to FIG. 4 showing a state in which the key top is pressed by the operator. FIG. 8 is a cross-sectional view corresponding to FIG. 4 showing a modification of the pressing member. FIG. 9 is a cross-sectional view corresponding to FIG. 4 showing a modified example of the pressing member.

  Hereinafter, an embodiment of the technology disclosed in the present application will be described.

(Waterproof type information processor)
As shown in FIG. 1, the waterproof information processing apparatus 10 according to the present embodiment is, for example, a portable information processing apparatus such as a tablet terminal or a mobile phone. The waterproof information processing apparatus 10 includes a display 12, a housing 20, and a push button switch 30.

(display)
The display 12 is, for example, a liquid crystal display having a touch panel module. Further, the display 12 is formed in a rectangular shape as viewed from the thickness direction (the direction of the arrow T). The display 12 has a display surface 12A for displaying an image, a video and the like. Further, the display surface 12A is an operation surface on which an operator can perform touch operation. The display 12 is housed in a housing 20.

(Housing)
The housing 20 is formed in a thin box shape covering the rear surface (surface opposite to the display surface 12A) of the display 12. The housing 20 has a rear wall portion 22 and an outer peripheral wall portion (exterior wall portion) 24. The back wall 22 faces the back surface of the display 12.

  The outer peripheral wall portion 24 is provided along the outer peripheral portion of the rear wall portion 22. Further, the outer peripheral wall portion 24 is formed in an annular shape along the outer peripheral portion of the display 12. The outer peripheral wall 24 is an example of a wall of the housing 20.

  As shown in FIGS. 2 and 3, on the outer surface 24A of the outer peripheral wall 24 along one end (one side) of the housing 20, a recess 40 for housing a key top 60 and a pressing member 80 described later is formed. Ru. The recess 40 has a receiving port 42 that opens the outer surface 24 A of the outer peripheral wall 24. The accommodation port 42 is formed in a long hole shape along one end (one side) of the housing 20.

  As shown in FIG. 3, the recess 40 has a bottom wall 40A and a pair of side walls 40B. The bottom wall 40A extends along one end of the housing 20. The pair of side wall portions 40B extend from the end portions on both sides in the longitudinal direction of the bottom wall portion 40A to the outer surface 24A side of the outer peripheral wall portion 24. A pair of step portions 44 is provided on the accommodation port 42 side of the pair of side wall portions 40B.

  The pair of step portions 44 respectively project into the recess 40 from the pair of side wall portions 40B. A pair of stopper portions 70A of a retaining member 70 described later is engaged with the pair of step portions 44.

  In the bottom wall portion 40A of the recess 40, a through hole 50 is formed. The through hole 50 is a circular hole penetrating the bottom wall 40A of the recess 40 in the thickness direction. A positioning portion 52 is provided on the inner circumferential surface 50 </ b> A of the through hole 50.

  The positioning portion 52 is protruded from the inner circumferential surface 50 </ b> A of the through hole 50. Further, the positioning portion 52 is formed in an annular shape along the inner circumferential surface 50A of the through hole 50. A positioning hole 54 is formed at a central portion of the positioning portion 52. The positioning hole 54 is a circular hole. The positioning hole 54 is disposed coaxially with the through hole 50. The inner peripheral surface of the positioning hole 54 faces the outer peripheral surface of the small diameter portion 84 of the core member 82 described later.

(Push-button switch)
As shown in FIGS. 2 and 3, a push button switch 30 is provided on the outer peripheral wall 24 along one end of the housing 20. The push button switch 30 has a switch 32 (see FIG. 3), a key top 60, a retaining member 70, and a pressing member 80.

(switch)
As shown in FIG. 3, the switch 20 is accommodated in the housing 20. The switch 32 is, for example, a tactile switch such as a dome switch. The switch 32 is disposed inside the outer peripheral wall 24. Also, the switch 32 is mounted on the switch substrate 34. The switch substrate 34 is electrically connected to a printed circuit board (main board) not shown.

  The switch 32 has a switch base 32A and a button 32B. The switch base 32A faces the outer peripheral wall 24. The button portion 32B is provided on the outer peripheral wall portion 24 side of the switch base portion 32A, and faces the through hole 50. The button portion 32B protrudes from the switch base portion 32A in a projecting manner by the biasing force of an elastic body (not shown) provided on the switch 32. Then, in a state where the button portion 32B protrudes from the switch base portion 32A, the switch 32 is turned off (non-energized state).

  On the other hand, when the button portion 32B is pushed into the switch base portion 32A by the push member 80 described later, the switch 32 is turned on (energized state). When the switch 32 is turned on, for example, an electrical signal is transmitted from the switch 32 to the switch substrate 34.

(Key top)
The key top 60 is accommodated in a recess 40 formed in the outer peripheral wall 24 of the housing 20. In addition, the key top 60 is capable of coming into and coming out of contact with the bottom wall portion 40A of the recess 40. The key top 60 is formed of, for example, a resin or the like. The key top 60 also has an operation unit 62 and a base unit 64.

  The operation unit 62 is formed in an elliptic cylindrical shape. The operation unit 62 also has a front surface 62A and a back surface 62B. The surface 62A is exposed from the accommodation port 42 of the recess 40. The surface 62A is an operation surface which is pushed into the recess 40 by the finger of the operator. The back surface 62B is a surface opposite to the surface 62A. A base portion 64 is provided on the back surface 62B.

  The base portion 64 protrudes from the back surface 62 </ b> B of the operation portion 62 toward the bottom wall portion 40 </ b> A of the recess 40. The base portion 64 is provided with a pair of engaging portions 66. The pair of engagement portions 66 project from the base portion 64 to both sides in the longitudinal direction (direction of arrow L) of the operation portion 62. The retaining member 70 is engaged with the pair of engaging portions 66.

(Retaining member)
As shown in FIG. 2, the retaining member 70 is a member that prevents the key top 60 from coming out of the accommodation opening 42 of the recess 40. The retaining member 70 is inserted into the recess 40 from the thickness direction of the housing 20, with the key top 60 housed in the recess 40. Further, the retaining member 70 includes a pair of stopper portions 70A and a connecting portion 70B that connects the pair of stopper portions 70A.

  As shown in FIG. 4, the pair of stoppers 70 </ b> A is disposed on the bottom wall 40 </ b> A with respect to the pair of steps 44 and engaged with the pair of steps 44. Further, the pair of stopper portions 70A is disposed on the side of the housing port 42 (outside of the housing 20) with respect to the pair of engaging portions 66 of the key top 60. A pair of engaging portions 66 are respectively engaged with the pair of stopper portions 70A. Thereby, the displacement of the key top 60 in the direction away from the bottom wall 40A of the recess 40 is limited. The pair of stopper portions 70A suppresses the key top 60 from coming out of the accommodation opening 42.

(Pushing member)
As shown in FIG. 3, the push member 80 is disposed between the key top 60 and the switch 32. The pressing member 80 has a core member 82 and an elastic member 90. The core member 82 is formed of, for example, a hard member such as resin or metal.

  On the other hand, the elastic member 90 is formed of, for example, an elastic body such as rubber impregnated with a lubricant such as a silicone-based lubricant. The elastic member 90 and the pressing member 80 are integrally formed, for example, by insert molding or the like. The elastic member 90 may be formed of an elastic body such as rubber or silicon not impregnated with a lubricant or the like.

  The core member 82 is formed in a cylindrical shape. Further, the core member 82 is disposed in the through hole 50 formed in the bottom wall portion 40A of the recess 40. The core member 82 has a small diameter portion 84 and a large diameter portion 86 having different outer diameters. The small diameter portion 84 and the large diameter portion 86 are coaxially arranged.

  The small diameter portion 84 is disposed on the switch 32 side with respect to the large diameter portion 86. Further, the outer diameter of the small diameter portion 84 is smaller than the outer diameter of the large diameter portion 86. The small diameter portion 84 is inserted into the positioning hole 54. Further, the end 84 E of the small diameter portion 84 protrudes from the positioning hole 54 toward the switch 32 and is in contact with the button portion 32 B of the switch 32. On the other hand, the elastic member 90 is fixed to the large diameter portion 86. The end 84E of the small diameter portion 84 is an example of the other end of the core member 82.

(Elastic member)
The elastic member 90 has a cylindrical portion 92, a seal portion 94, an elastic portion 96, and a pair of projecting portions 98. The cylindrical portion 92 is formed in a cylindrical shape. The cylindrical portion 92 covers the outer peripheral surface 86A of the large diameter portion 86 in a state of surrounding the outer peripheral surface 86A. Further, the cylindrical portion 92 is fixed to the outer peripheral surface 86A of the large diameter portion 86 by welding or the like.

  As shown in FIG. 4, the cylindrical portion 92 is disposed in the through hole 50. Further, as shown in FIG. 5A, a gap S is formed between the outer peripheral surface 92A of the cylindrical portion 92 and the inner peripheral surface 50A of the through hole 50.

  As shown in FIG. 3, a seal portion 94 is provided on the outer peripheral surface 92 </ b> A of the cylindrical portion 92. The seal portion 94 is integrally formed with the cylindrical portion 92. The seal portion 94 protrudes from the outer peripheral surface 92 </ b> A of the cylindrical portion 92. In addition, the seal portion 94 has an annular shape along the outer peripheral surface 92A of the cylindrical portion 92. The outer diameter of the seal portion 94 is larger than the outer diameter of the cylindrical portion 92.

  As shown in FIG. 4, the seal portion 94 is press-fit into the through hole 50 together with the large diameter portion 86. Thereby, as shown in FIG. 5B, the seal portion 94 is compressed between the outer peripheral surface 86A of the large diameter portion 86 and the inner peripheral surface 50A of the through hole 50, and the seal portion is formed on the inner peripheral surface 50A of the through hole 50. 94 adheres closely. By the seal portion 94, the gap S (see FIG. 5A) between the outer peripheral surface 92A of the cylindrical portion 92 and the inner peripheral surface 50A of the through hole 50 is sealed. The seal portion 94 is in close contact with the inner circumferential surface 50A of the through hole 50 in a slidable manner.

  The elastic member 90 is formed of an elastic body impregnated with a lubricant, as described above. Thereby, the slidability of the seal portion 94 with respect to the inner circumferential surface 50A of the through hole 50 is enhanced. In addition, the inner circumferential surface 50A of the through hole 50 may be subjected to surface treatment (low friction surface treatment) or the like for reducing the coefficient of friction. Thereby, the slidability of seal part 94 to inner skin 50A of penetration hole 50 is raised further.

  As shown in FIG. 3, the elastic portion 96 covers the end 86E of the large diameter portion 86 and is fixed to the end 86E by welding or the like. In addition, the elastic portion 96 is integrated with the cylindrical portion 92. The end 86 E of the large diameter portion 86 is in contact with the base portion 64 of the key top 60 via the elastic portion 96. The end 86E of the large diameter portion 86 is an example of one end of the core member 82.

  The elastic portion 96 is provided with a pair of projecting portions 98. The pair of overhanging portions 98 are integrated with the elastic portion 96 and project from the elastic portion 96 to both sides in the longitudinal direction (arrow L direction) of the key top 60. Bent piece portions 98A bent toward the key top 60 are respectively provided on the tip end sides of the pair of projecting portions 98. The pair of projecting portions 98 and the pair of bending pieces 98A are in contact with the base portion 64 of the key top 60.

  Here, an initial state of the push button switch 30 is shown in FIG. In this initial state, the button portion 32B protrudes from the switch base portion 32A of the switch 32, and the switch 32 is turned off.

  In the initial state of the push button switch 30, the push member 80 is pushed toward the key top 60 by the button portion 32B of the switch 32. As a result, the pair of engaging portions 66 of the key top 60 are in pressure contact with the pair of stopper portions 70A of the retaining member 70, respectively. As a result, the key top 60 is held in the initial state. In addition, rattling of the key top 60 is suppressed.

  Further, the end 86 E of the core member 82 is in pressure contact with the central portion of the base portion 64 of the key top 60 via the elastic portion 96. Thereby, the key top 60 is supported by the pressing member 80 so as to be swingable with the end 86E of the core member 82 as a fulcrum.

  Further, the pair of projecting portions 98 of the elastic member 90 are in contact with the base portion 64 of the key top 60. Under the present circumstances, the bending piece part 98A provided in the front end side of the overhang part 98 is elastically deformed to the bottom wall part 40A side of the recessed part 40. As shown in FIG. By the restoring force of the pair of bent pieces 98A, the inclination (rocking) of the key top 60 with respect to the core member 82 is suppressed.

(Action)
Next, the operation of the present embodiment will be described.

  First, the operation of the push button switch 30 when the operator presses the central portion of the key top 60 will be described.

  The initial state of the push button switch 30 is shown in FIG. From this initial state, as shown by the arrow F1 in FIG. 6, when the operator pushes the central portion of the surface 62A of the key top 60 to the back side of the recess 40 with the finger, the key top 60 via the pressing member 80. The button 32B of the switch 32 is pressed.

  Specifically, when the operator pushes the central portion of the surface 62 A of the key top 60 to the back side of the recess 40 with a finger, the key top 60 moves to the bottom wall 40 A of the recess 40. When the key top 60 moves to the bottom wall 40A side, the push member 80 is pressed by the key top 60 to the switch 32 side. As a result, the core member 82 of the pressing member 80 moves along the through hole 50 to the switch 32 side. At this time, the seal portion 94 provided at the large diameter portion 86 of the core member 82 slides on the inner circumferential surface 50 A of the through hole 50.

  When the core member 82 moves to the switch 32 side along the through hole 50, the small diameter portion 84 of the core member 82 pushes the button portion 32B of the switch 32 into the switch base portion 32A. Thereby, the switch 32 is switched from the off state to the on state.

  Next, when the operator removes the finger from the central portion of the surface 62A of the key top 60, as shown in FIG. 4, the switch base is provided by the restoring force (biasing force) of an elastic body (not shown) provided on the switch 32. The button portion 32B protrudes from the portion 32A. Thereby, the switch 32 is switched from the on state to the off state.

  In addition, when the button portion 32B protrudes from the switch base portion 32A, the push member 80 is pushed toward the key top 60 by the button portion 32B. Thereby, the core member 82 of the pressing member 80 moves to the key top 60 side along the through hole 50. At this time, the seal portion 94 provided at the large diameter portion 86 of the core member 82 slides on the inner circumferential surface 50 A of the through hole 50.

  When the core member 82 moves to the key top 60 side along the through hole 50, the key top 60 is pushed to the outside of the housing 20 by the pressing member 80. Thereby, the pair of engaging portions 66 of the key top 60 are respectively engaged with the pair of stopper portions 70A of the retaining member 70, and the key top 60 is held in the initial state.

  Next, the operation of the push button switch 30 when the operator presses one end side in the longitudinal direction of the surface 62A of the key top 60 will be described.

  As shown by an arrow F2 in FIG. 7, when the operator pushes one end side of the surface 62A of the key top 60 in the longitudinal direction (arrow L direction) with a finger to the back side of the recess 40, the key top 60 becomes the core member 82. The button portion 32B of the switch 32 is pushed through the pushing member 80 while inclining with one end portion of the switch as a fulcrum.

  Specifically, when the operator pushes one end side in the longitudinal direction of the surface 62A of the key top 60 to the back side of the recess 40 with a finger, the key top 60 is inclined with the end 86E of the core member 82 as a fulcrum. In this state, the key top 60 moves toward the bottom wall 40A of the recess 40. Thereby, as described above, the key top 60 pushes the button portion 32B of the switch 32 via the pressing member 80. As a result, the switch 32 is switched from the off state to the on state.

  Next, when the operator releases the finger from one end side in the longitudinal direction of the surface 62A of the key top 60, as shown in FIG. 4, the switch base portion is restored by the restoring force of an elastic body (not shown) provided on the switch 32. The button portion 32B is protruded from 32A. Thereby, the switch 32 is switched from the on state to the off state. Also, as described above, the key top 60 is returned to the initial state.

  Here, as shown in FIG. 7, when the key top 60 is inclined with the end 86E of the core member 82 as a fulcrum, as shown by the arrow a, one overhanging portion 98 of the elastic member 90 and the bending piece 98A. Is elastically deformed toward the bottom wall portion 40A of the recess 40. In the other projecting portion 98 of the elastic member 90, the elastic deformation of the bending piece 98A is restored, and the bending piece 98A moves to the key top 60 side as shown by the arrow b.

  In this state, when the operator releases the finger from one end side in the longitudinal direction of the surface 62A of the key top 60, the one end side in the longitudinal direction of the key top 60 is cased by the restoring force of one projecting portion 98 and bending piece 98A. It is pushed to the outside of the body 20. Thereby, as shown in FIG. 4, the key top 60 returns to the initial state.

(effect)
Next, the effects of the present embodiment will be described.

  According to the present embodiment, the pushing member 80 has the core member 82. The core member 82 has a large diameter portion 86. The large diameter portion 86 is inserted into the through hole 50 formed in the bottom wall portion 40A of the recess 40 of the housing 20. A seal portion 94 is provided on an outer peripheral surface 86A of the large diameter portion 86.

  The seal portion 94 is in close contact with the inner circumferential surface 50 A of the through hole 50. The gap between the outer peripheral surface 86A of the large diameter portion 86 and the inner peripheral surface 50A of the through hole 50 is sealed by the seal portion 94. Therefore, it is suppressed that water etc. infiltrate into the housing | casing 20 via the through-hole 50 from the accommodation opening 42 of the recessed part 40 which accommodates the keytop 60. As shown in FIG.

  When the key top 60 is pressed by the operator, the seal portion 94 slides on the inner circumferential surface 50 A of the through hole 50. Therefore, deformation of the seal portion 94 is suppressed. Thereby, damage to the seal portion 94 is suppressed. Therefore, the durability of the seal portion 94 is enhanced.

  Here, as a comparative example, for example, the seal material is fixed to the outer peripheral surface 86A of the large diameter portion 86 and the inner peripheral surface 50A of the through hole 50, and the outer peripheral surface 86A of the large diameter portion 86 and the inner peripheral surface 50A of the through hole 50 It is conceivable to seal the gap with the In this comparative example, when the key top 60 is pressed by the operator, the seal material is elastically deformed. Therefore, when the key top 60 is repeatedly pressed by the operator, the deformed portion of the seal material may be deteriorated and damaged. In addition, if the thickness of the sealing material is increased in order to suppress breakage of the deformed portion of the sealing material, the installation space of the sealed portion may be increased, and the thickness of the housing 20 may be increased.

  On the other hand, in the present embodiment, as described above, when the key top 60 is pressed by the operator, the seal portion 94 slides on the inner peripheral surface 50A of the through hole 50. Thereby, the deformation of the seal portion 94 is suppressed. Therefore, in the present embodiment, deterioration and damage of the seal portion 94 are suppressed as compared with the seal material of the comparative example. Furthermore, in the present embodiment, the thickness of the seal portion 94 can be reduced and the installation space of the seal portion 94 can be reduced as compared with the seal material of the comparative example. Therefore, the thickness of the housing 20 can be reduced. That is, in the present embodiment, the waterproof information processor 10 can be thinned.

  The seal portion 94 is formed of, for example, an elastic body impregnated with a lubricant. Thereby, the seal portion 94 can easily slide relative to the inner circumferential surface 50A of the through hole 50. Therefore, since the operator can easily press the key top 60, the operability of the key top 60 is improved. Furthermore, when the operator releases the finger from the key top 60, the key top 60 can be easily returned to the initial state.

  Further, the seal portion 94 is provided on the outer peripheral surface 92 </ b> A of the cylindrical portion 92. The cylindrical portion 92 covers the outer peripheral surface 86A of the large diameter portion 86 and is fixed to the outer peripheral surface 86A. As a result, the bonding strength of the seal portion 94 to the large diameter portion 86 is enhanced.

  Furthermore, the elastic portion 96 is integrated with the cylindrical portion 92. The elastic portion 96 covers the end 86E of the large diameter portion 86 and is fixed to the end 86E. Thereby, the bonding strength of the seal portion 94 to the large diameter portion 86 is further enhanced. Therefore, when the seal portion 94 slides on the inner peripheral surface 50A of the through hole 50, the seal portion 94 is prevented from coming off from the large diameter portion 86.

  Further, as shown in FIG. 5A, a gap S is formed between the outer circumferential surface 92A of the cylindrical portion 92 and the inner circumferential surface 50A of the through hole 50. Therefore, when the seal portion 94 slides on the inner peripheral surface 50A of the through hole 50, generation of a frictional force between the inner peripheral surface 50A and the outer peripheral surface 92A of the cylindrical portion 92 is suppressed. . Therefore, the operability of the key top 60 is further enhanced.

  As described above, in the present embodiment, the operability of the key top 60 can be enhanced while the bonding strength of the seal portion 94 to the large diameter portion 86 is enhanced.

  Here, as shown by the arrow F2 in FIG. 7, when one end side in the longitudinal direction of the surface 62A of the key top 60 is pressed by the operator, the key top 60 is inclined. When the core member 82 follows the inclination of the key top 60, the core member 82 is inclined within the through hole 50, and the core member 82 becomes difficult to move along the through hole 50.

  On the other hand, in the present embodiment, the key top 60 is pivotable with the end 86E of the core member 82 as a fulcrum. As a result, the core member 82 follows the inclination of the key top 60, and inclination of the core member 82 in the through hole 50 is suppressed. Therefore, the core member 82 can easily move along the through hole 50. Therefore, the operability of the key top 60 is further enhanced.

  In addition, when the key top 60 is inclined, for example, the outer peripheral portion of the key top 60 may be caught by the side wall portion 40B or the like of the recess 40, making it difficult for the key top 60 to return to the initial state.

  As a countermeasure against this, the elastic portion 96 of the present embodiment is provided with a pair of projecting portions 98. The pair of projecting portions 98 project from the elastic portion 96 to both sides in the longitudinal direction of the key top 60. Then, when the key top 60 is inclined, one of the pair of overhang portions 98 elastically deforms toward the bottom wall portion 40A of the recess 40, as shown by the arrow a in FIG.

  In this state, when the operator releases the finger from the key top 60, the key top 60 is pushed to the outside of the housing 20 by the restoring force of the one projecting portion 98 elastically deformed toward the bottom wall 40A of the recess 40. . Therefore, the key top 60 can be easily returned to the initial state.

  Furthermore, a bent piece 98A is provided on the tip end side of the overhanging portion 98. The bent piece 98A is bent toward the key top 60 side. The restoring force of the bent piece 98A further suppresses the inclination of the key top 60. Therefore, the key top 60 can be more easily restored to the initial state.

  Further, a positioning portion 52 is provided on the inner circumferential surface 50A of the through hole 50. The positioning portion 52 protrudes from the inner circumferential surface 50A of the through hole 50, and faces the outer circumferential surface 84A of the small diameter portion 84 of the core member 82 on the switch 32 side with respect to the seal portion 94. The small diameter portion 84 of the core member 82 is positioned with respect to the button portion 32 B of the switch 32 by the positioning portion 52.

  Thereby, for example, when the key top 60 is inclined, displacement of the small diameter portion 84 of the core member 82 with respect to the button portion 32B of the switch 32 is suppressed. Therefore, operation failure or the like of the key top 60 is suppressed.

(Modification)
Next, modifications of the above embodiment will be described.

  In the above-described embodiment, the bent pieces 98A are provided on the pair of overhanging portions 98 of the elastic member 90. However, the bent piece 98A may be omitted.

  Further, in the above embodiment, the elastic portion 96 is provided with the pair of projecting portions 98. However, for example, as shown in FIG. 8, the pair of overhanging portions 98 may be omitted.

  In the above embodiment, the elastic portion 96 is provided at the end 86E of the core member 82. However, as shown in FIG. 9, the elastic portion 96 may be omitted. When the elastic portion 96 is omitted, for example, the key top 60 is in contact with the end 86E of the core member 82.

  Further, in the above embodiment, the key top 60 is pivotable with the end 86E of the core member 82 as a fulcrum. However, the key top may be fixed to one end of the core member. In this case, the key top does not swing around one end of the core member.

  Further, in the above embodiment, the elastic portion 96 and the cylindrical portion 92 are integrated. However, the elastic portion 96 and the cylindrical portion 92 may be separated. Further, in the embodiment, the cylindrical portion 92 is provided on the outer peripheral surface 86A of the large diameter portion 86 of the core member 82. However, the cylindrical portion 92 may be omitted. In addition, when the cylindrical part 92 is abbreviate | omitted, the sealing part 94 is fixed to the outer peripheral surface 86A of the large diameter part 86 of the core member 82 by welding etc., for example.

  Further, in the above embodiment, the core member 82 has the large diameter portion 86 and the small diameter portion 84 having different outer diameters. However, the outer diameter of the core member may be constant. When the outer diameter of the core member is constant, the positioning portion 52 may be omitted.

  In the above embodiment, a part of the core member 82 is disposed in the through hole 50. However, at least a portion of the core member can be disposed in the through hole 50.

  Further, the key top 60 of the above embodiment is attached to the outer peripheral wall 24 of the housing 20 by the retaining member 70. However, the attachment structure of the key top 60 to the housing 20 can be changed as appropriate.

  Further, in the above embodiment, the push button switch 30 is provided on the outer peripheral wall portion 24 of the housing 20. However, the push button switch 30 may be provided on the wall (outer wall, exterior wall) of the housing exposed to the outside.

  Moreover, the push button switch 30 which concerns on the said embodiment is applicable to the various information processing apparatus of waterproof type.

  As mentioned above, although one embodiment of the technique which this application discloses was described, the technique which this application discloses is not limited to said embodiment. In addition, the above embodiment and various modifications may be appropriately combined and used, and it is needless to say that various modifications can be made without departing from the scope of the technology disclosed by the present application.

  In addition, the following additional remarks are disclosed regarding the above embodiment.

(Supplementary Note 1)
A housing provided with a wall portion having a through hole;
A switch disposed inside the wall of the housing and facing the through hole;
A pushing member inserted into the through hole and coming into and coming out of contact with the switch;
A key top disposed outside the wall of the housing and pressing the switch through the pressing member;
Equipped with
The pushing member is
A core member at least a part of which is disposed in the through hole;
A seal portion provided on an outer peripheral surface of the core member and in close contact with an inner peripheral surface of the through hole and sliding on the inner peripheral surface;
Have
Waterproof type information processor.
(Supplementary Note 2)
The seal portion has an annular shape surrounding the outer circumferential surface of the core member.
The waterproof type information processing apparatus according to Appendix 1.
(Supplementary Note 3)
The sealing portion seals a gap between the outer peripheral surface of the core member and the inner peripheral surface of the through hole.
The waterproof type information processing apparatus according to Appendix 1 or 2.
(Supplementary Note 4)
The through hole has a circular shape,
The cross-sectional shape of the core member is circular.
The waterproof type information processing apparatus according to any one of supplementary notes 1 to 3.
(Supplementary Note 5)
The pressing member includes a tubular portion surrounding the outer peripheral surface of the core member and fixed to the outer peripheral surface.
The seal portion is integrated with the cylindrical portion and protrudes from an outer peripheral surface of the cylindrical portion.
The waterproof type information processing apparatus according to any one of supplementary notes 1 to 4.
(Supplementary Note 6)
There is a gap between the outer peripheral surface of the cylindrical portion and the inner peripheral surface of the through hole,
The waterproof type information processor according to appendix 5.
(Appendix 7)
The outer diameter of the seal portion is larger than the outer diameter of the tubular portion,
The waterproof type information processing apparatus according to Supplementary Note 5 or 6.
(Supplementary Note 8)
The key top is swingably supported by the pressing member with one end of the core member as a fulcrum.
The waterproof type information processing apparatus according to any one of supplementary notes 1 to 7.
(Appendix 9)
The pressing member has an elastic portion provided at the one end of the core member,
The one end portion of the core member supports the key top via the elastic portion.
The waterproof type information processor according to appendix 8.
(Supplementary Note 10)
The housing has a stopper that engages with the key top and limits displacement of the key top away from the wall;
The elastic portion urges the key top toward the stopper portion.
The waterproof type information processing device according to appendix 9.
(Supplementary Note 11)
The stopper portions are provided on both sides in the longitudinal direction of the key top,
The waterproof type information processing apparatus according to appendix 10.
(Supplementary Note 12)
The switch is
Switch base section,
A button portion in contact with the pressing member;
An elastic body for causing the button portion to protrude from the switch base portion and pressing the key top to the stopper portion via the pressing member;
Have
The waterproof type information processing apparatus according to Supplementary Note 10 or 11.
(Supplementary Note 13)
The elastic portion is provided with a pair of projecting portions which respectively project from the elastic portion to both sides.
The waterproof type information processing apparatus according to any one of appendices 9 to 12.
(Supplementary Note 14)
The pair of projecting portions respectively project from the elastic portion to both sides in the longitudinal direction of the key top.
The waterproof type information processing apparatus according to appendix 13.
(Supplementary Note 15)
The tip sides of the pair of projecting portions are respectively bent toward the key top side.
The waterproof type information processing device according to appendix 14.
(Supplementary Note 16)
The coefficient of friction of the inner circumferential surface of the through hole is smaller than the coefficient of friction of the surface of the wall portion,
The waterproof type information processing apparatus according to any one of supplementary notes 1 to 15.
(Supplementary Note 17)
The inner circumferential surface of the through hole is provided with a positioning portion which protrudes from the inner circumferential surface and which faces the outer circumferential surface of the core member on the switch side with respect to the seal portion.
The waterproof type information processing apparatus according to any one of supplementary notes 1 to 16.
(Appendix 18)
The wall has a recess for receiving the key top,
The through hole is provided in a bottom wall of the recess.
The waterproof type information processing apparatus according to any one of supplementary notes 1 to 17.
(Appendix 19)
The key top contacts and separates from the wall.
The waterproof type information processing apparatus according to any one of the supplementary notes 1 to 18.
(Supplementary Note 20)
The wall is provided along an outer periphery of the housing.
The waterproof type information processing apparatus according to any one of supplementary notes 1 to 19.

10 waterproof information processing apparatus 20 case 24 outer peripheral wall (an example of the wall of the case)
32 switch 32B button part 50 through hole 50A inner peripheral surface (an example of inner peripheral surface of through hole)
52 positioning portion 60 key top 70A stopper portion 80 pressing member 82 core member 84A outer peripheral surface (an example of outer peripheral surface of core member)
86A Outer peripheral surface (an example of the outer peripheral surface of the core member)
86E end (an example of one end of core member)
90 elastic member 92 cylindrical part 92A outer peripheral surface (an example of outer peripheral surface of cylindrical part)
94 seal portion 96 elastic portion 98 overhang portion S gap (an example of a gap between the outer peripheral surface of the core member and the inner peripheral surface of the through hole)

Claims (8)

A housing provided with a wall portion having a through hole;
A switch disposed inside the wall of the housing and facing the through hole;
A pushing member inserted into the through hole and coming into and coming out of contact with the switch;
A key top disposed outside the wall of the housing and pressing the switch through the pressing member;
Equipped with
The pushing member is
A core member at least a part of which is disposed in the through hole;
A seal portion provided on an outer peripheral surface of the core member and in close contact with an inner peripheral surface of the through hole and sliding on the inner peripheral surface;
Have
Waterproof type information processor. The pressing member includes a tubular portion surrounding the outer peripheral surface of the core member and fixed to the outer peripheral surface.
The seal portion is integrated with the cylindrical portion and protrudes from an outer peripheral surface of the cylindrical portion.
The waterproof type information processing apparatus according to claim 1. There is a gap between the outer peripheral surface of the cylindrical portion and the inner peripheral surface of the through hole,
The waterproof type information processing apparatus according to claim 2. The key top is swingably supported by the pressing member with one end of the core member as a fulcrum.
The waterproof type information processing apparatus according to any one of claims 1 to 3. The pressing member has an elastic portion provided at the one end of the core member,
The one end portion of the core member supports the key top via the elastic portion.
The waterproof type information processing apparatus according to claim 4. The housing has a stopper that engages with the key top and limits displacement of the key top away from the wall;
The elastic portion urges the key top toward the stopper portion.
The waterproof type information processing apparatus according to claim 5. The elastic portion is provided with a pair of projecting portions which respectively project from the elastic portion to both sides.
The waterproof type information processing apparatus according to claim 5 or 6. The tip sides of the pair of projecting portions are respectively bent toward the key top side.
The waterproof type information processing apparatus according to claim 7.