JP2013054994A - Portable terminal - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a portable terminal which does not impede the reduction in height and the downsizing of an enclosure.SOLUTION: A portable terminal 10 has a waterproof member 31 disposed between a key 26 composed of a key body 27 and a pressing piece 28 and a switch member 29. The waterproof member 31 includes: a first member 32 having a bottom part 32B and a cylinder part 32A; a water stop part 33, provided on an outer side face 32C of the cylinder part 32A, which adheres closely to an inner face 24A of a second through hole 24; a second member 34, coupled to the first member 32, which abuts on a surface 14A of a second wall part 14; a third member 35, coupled to the second member 34, which makes elastic contact with a reverse side 27A of the key body 27; and a fourth member 36, coupled to the first member 32, which engages with the pressing piece 28.

Description

  In the present invention, a key is supported by a first wall portion provided outside the housing and a second wall portion provided inside, and a switch member is disposed inside the second wall portion. The present invention relates to a mobile terminal in which a waterproof member is disposed.

In the mobile terminal, a key is disposed in the first through hole provided in the first wall portion of the housing, and a bottomed cylindrical waterproof member is disposed in the second through hole provided in the second wall portion, A key presser is brought into contact with the waterproof member, and a rubber sheet is disposed between the first wall portion and the second wall portion (see, for example, Patent Document 1).
According to the portable terminal of Patent Document 1, the rubber sheet is elastically deformed by operating and pressing the key, and the key is pushed back to the initial position by the restoring force of the rubber sheet by releasing the operation force from the key.

JP 2006-344528 (abstract, paragraphs 0026, 0029, FIG. 3)

Here, the rubber sheet of Patent Document 1 is fixed by inserting holes provided in the periphery of the rubber sheet into protrusions provided in the housing.
The rubber sheet is formed larger than the planar shape of the key with respect to the key pressing direction.
Therefore, the space necessary for installing the key has to be substantially increased, which has been an obstacle to making the casing thinner and smaller.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a portable terminal that does not hinder the reduction in thickness and size of the housing.

  The portable terminal of the present invention is provided with a housing, a first wall portion disposed outside the housing and provided with a first through hole, and disposed inside the housing and provided with a second through hole. A second wall portion, a key having a key body housed in the first through hole, a key connected to the key body and having a pusher disposed in the second through hole, and an inner side of the second wall portion. A switch member disposed on the switch, a key, and a waterproof member disposed between the switch member, the waterproof member is formed in a bottomed cylindrical shape, and the bottom is at the tip of the pusher The first member disposed between the second through hole and the pusher and the outer surface of the first member is in contact with the cylindrical member, and is in close contact with the inner surface of the second through hole. A water stop portion, connected to the first member, and of the back surface of the key body and the surface of the second wall portion A second member in surface contact, a third member connected to the second member and elastically contacting the other of the back surface of the key body and the surface of the second wall portion, A fourth member coupled to the one member and engaged with the pusher.

By disposing the waterproof member between the key and the switch member and engaging the fourth member of the waterproof member with the presser of the key, the waterproof member can be held in the key. The key presser is provided within the planar shape of the key body.
Therefore, since the fourth member can be disposed within the planar shape of the key body, the position of the waterproof member can be maintained within the planar shape of the key body.

Furthermore, the third member of the waterproof member is elastically brought into contact with the other of the back surface of the key body and the surface of the second wall portion.
Therefore, the third member can be disposed within the planar shape of the key body, and the key can be returned to the initial position by using the restoring force of the third member.

As described above, the fourth member that holds the position of the waterproof member and the third member that returns the key to the initial position can be arranged in the planar shape of the key body.
Thereby, the space for installing a key in a housing | casing can be restrained small compared with the past, and it can prevent thinning and size reduction of a housing | casing.

  In the portable terminal of the present invention, the fourth member has a cylindrical shape surrounding the periphery of the pusher.

  By forming the fourth member into a cylindrical shape surrounding the periphery of the pusher, the key can be more securely held (positioned) on the waterproof member by more suitably engaging the fourth member with the pusher.

  Furthermore, in the mobile terminal of the present invention, the second member is in surface contact with the surface of the second wall portion.

Here, the key is a member that can move with respect to the casing by a key operation, and the surface of the second wall portion is a member that cannot move by the key operation.
As a result, the waterproof member is layered further on the housing as compared with the case where the second member is in surface contact with the back surface of the key body by bringing the second member of the waterproof member into surface contact with the surface of the second wall portion. Can be fixed securely.

  In the mobile terminal of the present invention, the third member is connected to the end of the second member, and the distal end of the third member is separated from the proximal end with respect to the pusher.

By separating the distal end of the third member from the proximal end with respect to the pusher, the third member can be inclined with respect to the key pressing direction.
Thereby, compared with the case where the 3rd member is made to stand upright, it becomes easy to obtain the elastic deformation of the 3rd member corresponding to key operation.

  Furthermore, in the portable terminal of the present invention, the third member is connected to a central portion between the proximal end and the distal end of the second member connected to the first member, and The distal end of the third member is closer than the proximal end.

By bringing the tip of the third member closer to the pusher than the base end, the third member can be inclined with respect to the key pressing direction.
Thereby, compared with the case where the 3rd member is made to stand upright, it becomes easy to obtain the elastic deformation of the 3rd member corresponding to key operation.

  In the portable terminal of the present invention, the third member is connected to a central portion between the proximal end and the distal end of the second member connected to the first member, and The distal end of the third member is separated from the proximal end.

By separating the distal end of the third member from the proximal end with respect to the pusher, the third member can be inclined with respect to the key pressing direction.
Thereby, compared with the case where the 3rd member is made to stand upright, it becomes easy to obtain the elastic deformation of the 3rd member corresponding to key operation.

  Furthermore, in the portable terminal of the present invention, the third member is connected to a central portion between the proximal end and the distal end of the second member connected to the first member, and the third member is pressed by the key. A recess is provided at a position corresponding to the third member on the surface of the second wall portion while being substantially parallel to the direction.

The third member was made upright by being arranged substantially parallel to the key pressing direction. Furthermore, the recessed part was provided in the position corresponding to the 3rd member in the surface of a 2nd wall part.
Therefore, when the key is pushed in, the second member can be elastically deformed so that the second member enters the recess.
Thereby, even when the third member is erected, the elastic deformation of the second member can be easily obtained corresponding to the key operation.

According to the portable terminal of the present invention, the waterproof member can be held on the key by engaging the fourth member of the waterproof member with the presser of the key, and the presser is provided in the planar shape of the key body.
As a result, the position of the waterproof member can be held within the planar shape of the key body, so that the effect of not hindering the thinning and miniaturization of the housing can be obtained.

The perspective view which shows the portable terminal of 1st Embodiment which concerns on this invention. The disassembled perspective view which shows the principal part of the portable terminal of FIG. Sectional view taken along the line II of FIG. Sectional drawing which shows the principal part of the portable terminal of 2nd Embodiment Sectional drawing which shows the principal part of the portable terminal of 3rd Embodiment Sectional drawing which shows the principal part of the portable terminal of 4th Embodiment The disassembled perspective view which shows the principal part of the portable terminal of FIG. Sectional drawing which shows the principal part of the portable terminal of 5th Embodiment

  Hereinafter, a mobile terminal according to an embodiment of the present invention will be described with reference to the drawings.

(First embodiment)
As shown in FIG. 1, a mobile terminal 10 according to a first embodiment of the present invention includes a planar rectangular housing 12 having a predetermined thickness, a display unit 16 housed in the housing 12, and a display unit 16. And a transparent plate-like member 17 covering the.
On the surface of the housing 12, a call receiving unit 18 is provided at the upper end 12A, and an operation unit 19 and a call transmitting unit 21 are provided at the lower end 12B.

As shown in FIG. 2, the first wall portion 13 is disposed outside the housing 12, and the second wall portion 14 is disposed inside the housing 12 (see also FIG. 1).
The first wall portion 13 and the second wall portion 14 are wall portions constituting the end surface of the housing 12.
A first through hole 23 is provided in the first wall portion 13. The first through hole 23 is formed in a substantially rectangular shape so that a key body 27 described later can be fitted therein.
On the back surface of the first wall portion 13, a step portion 23 </ b> A is formed around the first through hole 23.
A second through hole 24 is provided in the second wall portion 14. The 2nd through-hole 24 is formed in the circular shape so that the 1st member 32 of the waterproof member 31 mentioned later can be inserted.

In addition, as shown in FIG. 3, the mobile terminal 10 includes a key 26 disposed in the first through hole 23 and the second through hole 24, a switch member 29 disposed inside the second wall portion 14, Key 26
And a waterproof member 31 disposed between the switch members 29.
The switch member 29 is provided on the flexible circuit board 39.

The key 26 includes a key main body 27 accommodated in the first through hole 23, and a pusher 28 connected to the key main body 27 and disposed in the second through hole 24.
The key 26 is a side key provided on the first wall portion 13 and the second wall portion 14.
The key body 27 is formed in a substantially rectangular shape so as to be retractable and retractable in the first through hole 23, and has a rib 27B around the back surface 27A.

The ribs 27 </ b> B project from the periphery of the back surface 27 </ b> A of the key body 27 toward the radially outer side of the pusher 28.
The rib 27 </ b> B abuts on the stepped portion 23 </ b> A of the first through hole 23, so that the surface 27 </ b> C of the key body 27 is kept slightly protruding to the outside of the first wall portion 13.

A pusher 28 is provided at the center of the back surface 27 </ b> A of the key body 27.
The pusher 28 has a small-diameter portion 28A that protrudes from the center of the back surface 27A of the key body 27 toward the second through-hole 24, and a large-diameter portion 28B that is provided at the tip of the small-diameter portion 28A.
The large diameter portion 28 </ b> B is coaxially disposed in the second through hole 24.

The waterproof member 31 is formed of an elastically deformable member.
The waterproof member 31 includes a first member 32 fitted into the second through hole 24, a water stop portion 33 bulged from the first member 32, a second member 34 connected to the first member 32, It has a third member 35 connected to the second member 34 and a fourth member 36 connected to the first member 32.

The first member 32 is formed in a bottomed cylindrical shape with a cylindrical portion 32A and a bottom portion 32B.
The cylindrical portion 32A is formed in a cylindrical shape and is disposed between the second through hole 24 and the pusher 28 (large diameter portion 28B).

The bottom portion 32B is provided at the bottom end of the cylindrical portion 32A, the inner surface is in contact with the tip 28C of the pusher 28, and the outer surface is in contact with the switch member 29.
That is, the large-diameter portion 28B of the pusher 28 is fitted into the first member 32, and the tip 28C of the pusher 28 is in contact with the switch member 29 via the bottom 32B.

A water stop portion 33 is provided on the outer surface 32C of the cylindrical portion 32A.
The water stop portion 33 is in close contact with the inner surface 24 </ b> A of the second through hole 24 by bulging outward from the outer surface 32 </ b> C of the cylindrical portion 32 </ b> A in the radial direction.
Thereby, the 2nd through-hole 24 is block | closed by the water stop part 33 and the 1st member 32, and the outer side and inner side of the 2nd wall part 14 are maintained in a water stop state.

A second member 34 is connected to the upper end 32D of the first member 32.
The second member 34 is formed in a substantially rectangular shape along the surface 14A of the second wall 14 (see also FIG. 2), and is in surface contact with the surface 14A of the second wall 14.

Here, the key 26 is a member that can move with respect to the housing 12 by a key operation. On the other hand, the surface 14A of the second wall portion 14 is a member that cannot be moved by a key operation.
Therefore, the waterproof member 31 is securely fixed to the surface 14A (that is, the housing 12) of the second wall portion 14 by bringing the second member 34 of the waterproof member 31 into surface contact with the surface 14A of the second wall portion 14. it can.

The third members 35 are connected to the pair of distal ends 34A of the second member 34, respectively.
The third member 35 is provided with a base end 35 </ b> A at a distal end (end portion) 34 </ b> A of the second member 34, and the distal end 35 </ b> B is movably contacted with the back surface 27 </ b> A of the key body 27.
The third member 35 is provided so as to be elastically deformable so as to allow the operation of the key 26.

By bringing the tip 35 </ b> B of the third member 35 into contact with the back surface 27 </ b> A of the key body 27, the third member 35 can be disposed within the planar shape of the key body 27.
By providing the third member 35 so as to be elastically deformable, the key 26 can be returned to the initial position P1 using the restoring force of the third member 35 after the key 26 is operated.

Here, the distal end 35 </ b> B of the third member 35 is further away from the pusher 28 than the proximal end 35 </ b> A of the third member 35.
Therefore, the third member 35 can be inclined with respect to the axial direction of the pusher 28 (that is, the pressing direction of the key 26).

By inclining the third member 35, it becomes easier to obtain elastic deformation of the third member 35 corresponding to the operation of the key 26 than when the third member 35 is erected in the direction in which the key 26 is pressed.
Specifically, when the key 26 is pushed in the direction of arrow A, the tip 35B moves in the direction of arrow B along the back surface 27A of the key body 27.
By moving the distal end 35B, the third member 35 can be smoothly elastically deformed in the direction of arrow C with the proximal end 35A as a fulcrum.

A fourth member 36 is connected to the first member 32 and projects toward the small diameter portion 28 </ b> A of the pusher 28.
The fourth member 36 is formed in a cylindrical shape (disc shape) surrounding the small diameter portion 28 </ b> A so as to engage with the pusher 28.
The inner diameter of the fourth member 36 is formed so as to substantially match the outer diameter of the small diameter portion 28A.

Thus, the waterproof member 31 is disposed between the key 26 and the switch member 29, and the waterproof member 31 is positioned at the key 26 by engaging the fourth member 36 of the waterproof member 31 with the pusher 28 of the key 26. Can be held (positioned).
Here, the pusher 28 of the key 26 is provided within the planar shape of the key body 27.
Accordingly, since the fourth member 36 can be disposed within the planar shape of the key body 27, the position of the waterproof member 31 can be maintained within the planar shape of the key body 27.

Furthermore, by forming the fourth member 36 in a cylindrical shape surrounding the pusher 28, the fourth member 36 can be suitably engaged with the entire circumference of the pusher 28.
As a result, the waterproof member 31 can be more securely held on the key 26.

In addition, the inner diameter dimension of the fourth member 36 is formed so as to substantially match the outer diameter dimension of the small diameter portion 28A.
As a result, the effect of positioning the key 26 (specifically, prevention of displacement in the direction along the radial direction of the pusher 28) can be obtained more reliably.

As described above, the fourth member 36 that holds the position of the waterproof member 31 and the third member 35 that returns the key 26 to the initial position P <b> 1 can be arranged in the planar shape of the key body 27.
Thereby, the space for installing the key 26 in the housing | casing 12 can be restrained small compared with the past, and it can prevent the thickness reduction and size reduction of the housing | casing 12 being prevented.

Next, 2nd Embodiment-5th Embodiment are described based on FIGS.
In addition, in 2nd Embodiment-5th Embodiment, the same code | symbol is attached | subjected about the same kind and similar member as the portable terminal 10 of 1st Embodiment, and description is abbreviate | omitted.

(Second Embodiment)
The waterproof member 50 of the second embodiment shown in FIG. 4 is obtained by replacing the second member 34 and the third member 35 of the first embodiment with a second member 52 and a third member 53, and other configurations are the first. It is the same as the waterproof member 31 of one embodiment.

The second member 52 is formed in a substantially rectangular shape along the surface 14 </ b> A of the second wall portion 14, and the tip 52 </ b> A extends to the rib 27 </ b> B of the key body 27.
Therefore, the outer shape of the second member 52 is larger than that of the second member 34 of the first embodiment.
Thereby, the waterproof member 50 can be more reliably fixed to the surface 14A (that is, the housing 12) of the second wall portion 14 by bringing the second member 52 into surface contact with the surface 14A of the second wall portion 14.

A third member 53 is connected to a central portion 52C between the base end 52B and the tip 52A of the second member 52.
The third member 53 is provided with a base end 53 </ b> A at the central portion 52 </ b> C of the second member 52, and a distal end 53 </ b> B is movably contacted with the back surface 27 </ b> A of the key body 27.
The third member 53 is provided so as to be elastically deformable so as to allow the operation of the key 26.

The third member 53 is inclined with respect to the pressing direction (arrow A direction) of the key 26 by disposing the distal end 53B closer to the pusher 28 than the proximal end 53A.
Accordingly, it is easier to obtain elastic deformation of the third member 53 in response to the operation of the key 26 than when the third member 53 is upright.

  Furthermore, according to the waterproof member 50 of the second embodiment, similarly to the waterproof member 31 of the first embodiment, the third member 53 and the fourth member 36 can be arranged in the planar shape of the key body 27, and the housing 12 The thickness and size can be prevented from being hindered.

(Third embodiment)
The waterproof member 60 of the third embodiment shown in FIG. 5 is obtained by replacing the third member 53 of the second embodiment with a third member 63, and the other configuration is the same as that of the waterproof member 50 of the second embodiment. .

A third member 63 is connected to a central portion 52C between the base end 52B and the tip 52A of the second member 52.
The third member 63 is provided with a base end 63 </ b> A at the central portion 52 </ b> C of the second member 52, and a distal end 63 </ b> B is movably contacted with the back surface 27 </ b> A of the key body 27.
The third member 63 is provided so as to be elastically deformable so as to allow the operation of the key 26.

The third member 63 is inclined with respect to the pressing direction (arrow A direction) of the key 26 by disposing the distal end 63B away from the proximal end 63A with respect to the pusher 28.
Thereby, similarly to the waterproof member 50 of 2nd Embodiment, it becomes easy to obtain the elastic deformation of the 3rd member 63 corresponding to operation of the key 26. FIG.

  Furthermore, according to the waterproof member 60 of the third embodiment, similarly to the waterproof member 31 of the first embodiment, the third member 63 and the fourth member 36 can be arranged in the planar shape of the key body 27, and the housing 12 The thickness and size can be prevented from being hindered.

(Fourth embodiment)
The waterproof member 70 of the fourth embodiment shown in FIGS. 6 and 7 is obtained by replacing the third member 53 of the second embodiment with a third member 73, and other configurations are the same as those of the waterproof member 50 of the second embodiment. It is the same.

A third member 73 is coupled to a central portion 52C between the base end 52B and the tip 52A of the second member 52.
The third member 73 is provided with a base end 73 </ b> A at the central portion 52 </ b> C of the second member 52, and a distal end 73 </ b> B is movably contacted with the back surface 27 </ b> A of the key body 27.
The third member 73 is disposed substantially parallel to the pressing direction of the key 26 (the axial direction of the pusher 28), and stands upright toward the back surface 27A of the key body 27.

Here, a recess 74 is provided at a position corresponding to the third member 73 on the surface 14 </ b> A of the second wall portion 14.
The recessed part 74 is formed so that the second member 52 can easily enter by forming a large opening with respect to the bottom part.
Therefore, when the key 26 is pushed in the direction of arrow A, the third member 73 can be elastically deformed so that the second member 52 enters the recess 74.
A state in which the second member 52 is elastically deformed is indicated by an imaginary line.

Thereby, even when the third member 73 is erected, it is easy to obtain elastic deformation of the second member 52 corresponding to the operation of the key 26.
That is, according to the waterproof member 70 of 4th Embodiment, the effect similar to the waterproof member 50 of 2nd Embodiment is acquired.

  Furthermore, according to the waterproof member 70 of the fourth embodiment, similarly to the waterproof member 31 of the first embodiment, the third member 73 and the fourth member 36 can be arranged in the planar shape of the key body 27, and the housing 12 The thickness and size can be prevented from being hindered.

(Fifth embodiment)
A waterproof member 90 of the fifth embodiment shown in FIG. 8 is obtained by replacing the third member 35 of the first embodiment with a third member 93, and the other configurations are the same as the waterproof member 31 of the first embodiment. .

The third member 93 is formed in a substantially U shape, the base end 93A is connected to the tip 34A of the second member 34, and the tip 93B is in contact with the back surface 27A of the key body 27 so as to be movable.
The third member 93 is provided so as to be elastically deformable so as to allow the operation of the key 26.

  In this way, by forming the third member 93 in a substantially U shape, when the key 26 is pushed in the direction of the arrow A, it corresponds to the operation of the key 26 in the same manner as the waterproof member 31 of the first embodiment. Elastic deformation of the third member 93 is easily obtained.

  Furthermore, according to the waterproof member 90 of the fifth embodiment, similarly to the waterproof member 31 of the first embodiment, the third member 93 and the fourth member 36 can be arranged in the planar shape of the key body 27, and the housing 12 The thickness and size can be prevented from being hindered.

Note that the mobile terminal according to the present invention is not limited to the above-described embodiment, and can be appropriately changed and improved.
For example, in the first to fifth embodiments, the key 26 is described as a side key provided on the end portion (the first wall portion 13 and the second wall portion 14) of the housing 12, but the key 26 is the housing. It is also possible to provide in 12 other parts.
However, in the present invention, it is particularly preferable to apply the key 26 to the side key.

  Moreover, the portable terminal, housing | casing, 1st wall part, 2nd wall part, 1st through-hole, 2nd through-hole which were used in 1st Embodiment-5th Embodiment, a key, a switch member, a waterproof member, 1st The shapes and configurations of the member, the water stop portion, the second member, the third member, the fourth member, and the recess are not limited to those illustrated, and can be changed as appropriate.

  In the present invention, a key is supported on the first wall portion on the outer side and the second wall portion on the inner side of the housing, a switch member is disposed on the inner side of the second wall portion, and a waterproof member is provided between the key and the switch member. It is suitable for application to a portable terminal in which is arranged.

DESCRIPTION OF SYMBOLS 10 Mobile terminal 12 Housing | casing 13 1st wall part 14 2nd wall part 14A Surface of 2nd wall part 23 1st through-hole 24 2nd through-hole 24A Inner surface of 2nd through-hole 26 Key 27 Key main body 27A The back surface of a key main body 28 Pusher 28C Tip of Pusher 29 Switch member 31, 50, 60, 70, 90 Waterproof member 32 First member 32A Tube portion 32B Bottom portion 32C Tube portion outer surface 33 Water stop portion 34, 52 Second member 34A Second member The tip of the member
35, 53, 63, 73, 93 Third member 35A Third member proximal end 35B Third member distal end 36 Fourth member 52A Second member distal end 52B Second member proximal end 52C Second member central portion 53A , 63A, 73A, 93A Third member proximal end 53B, 63B, 73B, 93B Third member distal end 74, 84 Recess

Claims (7)

A housing,
A first wall disposed outside the housing and provided with a first through hole;
A second wall disposed inside the housing and provided with a second through hole;
A key body housed in the first through hole, and a key connected to the key body and having a pusher disposed in the second through hole;
A switch member disposed inside the second wall,
A waterproof member disposed between the key and the switch member;
The waterproof member is
A first member that is formed in a bottomed cylindrical shape, the bottom portion is in contact with the tip of the pusher and the cylindrical portion is disposed between the second through hole and the pusher;
A water stop portion provided on an outer surface of the cylindrical portion of the first member and closely contacting an inner surface of the second through hole;
A second member connected to the first member and in surface contact with one of a back surface of the key body and a surface of the second wall portion;
A third member coupled to the second member and elastically contacting the other of the back surface of the key body and the surface of the second wall portion;
And a fourth member connected to the first member and engaged with the pusher. The mobile terminal according to claim 1,
The portable terminal whose said 4th member is the cylinder shape surrounding the circumference | surroundings of the said presser. In the portable terminal according to claim 1 or 2,
A portable terminal in which the second member is in surface contact with the surface of the second wall. In the portable terminal according to claim 2 or claim 3,
A portable terminal in which the third member is connected to an end portion of the second member, and a distal end of the third member is separated from a proximal end with respect to the pusher. In the portable terminal according to claim 2 or claim 3,
The third member is connected to a central portion between the proximal end and the distal end of the second member coupled to the first member, and the distal end of the third member is closer to the pusher than the proximal end Also close to mobile devices. In the portable terminal according to claim 2 or claim 3,
The third member is connected to a central portion between the proximal end and the distal end of the second member coupled to the first member, and the distal end of the third member is closer to the pusher than the proximal end Mobile devices that are also far away. In the portable terminal according to claim 2 or claim 3,
The third member is connected to a central portion between the proximal end and the distal end of the second member connected to the first member,
The mobile terminal, wherein the third member is substantially parallel to the key pressing direction, and a recess is provided at a position corresponding to the third member on the surface of the second wall portion.

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