JP2010109150A - Portable electronic apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a portable electronic apparatus having a strap attachment part capable of controlling the damage to a chassis and the gap formation between case components composing the chassis. <P>SOLUTION: The portable electronic apparatus configured of the chassis 3 which is composed by combining two case components 31, 32 facing each other and to which an attachment part 5 for latching a strap is disposed. The attachment part 5 has a strap hole 5a for putting through the strap and a latching part 5b for latching the strap as well as composing a part of the wall face of the strap hole 5a, and in each of the two case components 31, 32, put through parts 51a, 52a for putting the strap through and latching members 51b, 52b for latching the strap are disposed. Each of the latching members 51b, 52b composes the latching part 5b by overlapping in the direction of thickness of the side wall of the chassis, and each of the put through parts 51a, 52a composes the strap hole 5a by overlapping each other. <P>COPYRIGHT: (C)2010,JPO&amp;INPIT

Description

  The present invention relates to a portable electronic device such as a mobile phone, an electronic notebook, or a digital camera.

In recent years, various portable electronic devices such as mobile phones, PDAs (Personal Digital Assistants), electronic notebooks, and digital cameras have been provided. These portable electronic devices are often provided with an attachment portion for attaching a string-like strap to the housing body (see, for example, Patent Document 1). By attaching the strap to the attachment portion, the user can easily hold the portable electronic device, and the device can be prevented from falling. In addition, a strap is often attached as a mark for identifying the portable electronic device or as a part of the decoration.
JP 2007-12750 A

  In recent years, portable electronic devices have been downsized due to market demands for technological development and high portability. Therefore, the portable electronic device has a small component and is easily damaged.

  FIG. 5 shows a mobile phone which is a typical mobile electronic device. FIG. 5A shows, as an example of a commonly known mobile phone, a first case 120 having a substantially rectangular shape in plan view having a display screen, and a second case having a substantially rectangular shape in plan view provided with operation keys. 130 shows a foldable mobile phone 100 connected by a hinge portion. The cellular phone 100 shown in the figure has a strap attachment portion 150 in which a strap hole 150a is formed across two sides at a corner portion of the second housing 130.

  As shown in FIG. 5B, the second casing 130 of the mobile phone 100 includes a front case 131 that faces the first casing 120 when the mobile phone 100 is folded and closed, and the mobile phone 100. A rear case 132 that is exposed to the outside when folded and closed is combined. In the normal mobile phone 100, the strap attaching portion 150 is provided in either the front case 131 or the rear case 132, and an example in which the strap attaching portion 150 is provided in the rear case 132 in FIG. It is shown. As shown in the schematic cross-sectional view of FIG. 5C, the strap attachment portion 150 is provided with a tunnel-like strap hole 150a that goes around the columnar locking portion 150b.

  When the mobile phone 100 having such a structure is used with a strap attached, a problem as shown in FIG. 6 may occur, and improvement is demanded.

  That is, as shown in FIG. 6A, when a force F1 pulling in the direction of the arrow through the strap S is applied with the strap S attached to the strap attaching portion 150, the rear case 132 is warped, and distortion or It causes damage.

  Such a defect is more likely to be realized at present when thin mobile phones are a trend. That is, if the rear case 132 constituting the thin casing is also thinned, the rigidity of the rear case 132 is reduced, and the rear case 132 is easily bent and easily damaged. In such a case, even if it does not lead to breakage, when the pulling force F1 is applied, the rear case 132 and the front case 131 may be opened, resulting in a gap. Then, dust and dust easily enter from the gap, and the internal circuit board is easily damaged, and the feeling of use is extremely poor above all.

  In order to prevent breakage due to such warping, a screwing portion for locking the rear case 132 and the front case 131 is provided in the vicinity of the strap attachment portion 150 and screwed. However, if the warpage is prevented by such a structure, it is essential to arrange the strap attaching portion 150 and the screwing portion in pairs, so that the degree of freedom in design is reduced.

  Alternatively, as shown in FIG. 6B, when a force F2 pulling in the direction of the arrow through the strap S is applied, the locking portion 150b is broken. When the housing is molded using a resin material, if the locking portion 150b is thickened to prevent breakage, sink marks are likely to occur at the time of molding, and the appearance is impaired.

  If the strap is attached, it will be easier to hold the mobile phone and prevent it from falling, but for example, when it is taken in / out from a bag or pocket, or when it is picked up from the table, the strap gets caught in something, as described above. Prone to breakage.

  The present invention has been made in view of such circumstances, and has a strap attachment portion that can suppress the breakage of the casing and the generation of a gap between the case components constituting the casing. An object is to provide electronic equipment.

  In order to solve the above-described problem, the portable electronic device of the present invention is a portable electronic device in which a mounting portion for locking a strap is provided in a casing configured by combining two opposing case components, The attachment portion includes a strap hole through which a strap is inserted, and a locking portion that locks the strap and constitutes a part of a wall surface of the strap hole, and each of the two case parts includes: An insertion portion for inserting the strap and a locking member for locking the strap are provided, and the locking members overlap each other in the thickness direction of the side wall of the housing and In addition, each of the insertion portions overlaps each other to form the strap hole.

  In the present invention, it is desirable that the plurality of locking members are in close contact with each other.

  In the present invention, among each of the locking members, a material for forming the locking member disposed inside the housing is higher than a material for forming the locking member disposed outside the housing. It is desirable to have strength.

  In the present invention, among the locking members, the locking member disposed inside the housing is preferably formed thicker than the locking member disposed outside the housing. .

  According to this invention, the locking portion that locks the strap is configured such that the plurality of locking members overlap in the thickness direction from the inside to the outside of the housing. Since the force applied to the locking part via the strap is a pulling force from the inside to the outside of the housing, multiple locking members that overlap in the same direction as the pulling force cooperate to counter the pulling force and lock. The force applied to the part is distributed to the plurality of locking members. Therefore, the stress applied to each locking member can be reduced, and breakage of the locking portion can be suppressed.

  Furthermore, since the force applied to the locking part via the strap acts on a plurality of case parts via the locking member, only one case part is deformed and deformed between the other case parts. It is possible to suppress a problem such as generating a gap. Therefore, it can be set as the portable electronic device which can suppress a damage favorably.

  According to this invention, since a plurality of locking members come into close contact with each other and can be made stronger, the locking portion can be made more difficult to break.

  According to this invention, when a tensile force is applied to the locking portion via the strap, a force is applied to the locking member having a high material strength. Due to the high material strength, it is difficult to cause fatigue failure against repeated stress. Therefore, even if a tensile force is repeatedly applied through the strap, the locking portion is not easily damaged and a highly reliable portable electronic device can be obtained.

  According to this invention, it can be made high intensity | strength by forming the locking member inside a housing | casing thickly. Normally, when the locking member is made thick using a resin material, an appearance defect called sink is likely to occur due to the influence of residual stress, etc., but other locking members are arranged on the outside of the housing, so The resulting part can be obscured. Therefore, it is possible to achieve both improvement in strength and suppression of appearance defects.

[First Embodiment]
Hereinafter, a portable electronic device according to an embodiment of the present invention will be described with reference to FIGS. In all the drawings below, the film thicknesses and dimensional ratios of the constituent elements are appropriately changed in order to make the drawings easy to see.

  1A and 1B are explanatory views showing a mobile phone (mobile electronic device) according to the present embodiment. FIG. 1A is a perspective view and FIG. 1B is a side view.

  As shown in FIG. 1, a mobile phone 1A includes a first housing 2 formed in a substantially rectangular shape in plan view and a substantially rectangular shape in plan view that can be overlapped in the thickness direction of the first housing 2. The second casing 3 and the connecting portions 4 provided at the end portions 2a and 3a in the longitudinal direction of the casings 2 and 3 and connecting the casings.

  Each housing | casing 2 and 3 can be rotated centering on the rotating shaft L located in the connection part 4, and it can fold so that housing | casings may mutually oppose. In the figure, a state in which the casings 2 and 3 are overlapped and closed is shown. In the present embodiment, the rotation axis L extends in a direction perpendicular to the thickness direction of the casings 2 and 3.

  The 1st housing | casing 2 is provided with display parts, such as a liquid crystal display and an organic display which display various information. The display unit is exposed on the facing surface 2b, which is a surface facing the second housing 3 in a state where the cellular phone 1A is closed.

  The second housing 3 includes an operation unit for inputting various information, an opening of a microphone for calling, and the like. These configurations are provided on the facing surface 3b, which is a surface facing the first housing 2 in a state where the cellular phone 1A is closed.

  In addition, a strap attachment portion (attachment portion) 5 in which a strap hole 5a is formed across two side walls 3s is provided at a corner portion of the second casing 3 on the one end portion 3a side. The locking portion 5 b of the strap attachment portion 5 has a columnar shape arranged at the corner of the second housing 3.

  2 is an exploded perspective view of the second housing 3, FIG. 2 (a) is an overall view, and FIG. 2 (b) is an enlarged view of a main part.

  As shown in FIG. 2 (a), the second casing 3 includes a front case (case part) 31 that forms the facing surface 3b side of the second casing 3 shown in FIG. And a rear case (case part) 32 that forms a surface that is exposed to the outside when the cellular phone 1A is folded and closed. The strap attachment portion 5 can be separated into an attachment portion 51 provided on the front case 31 and an attachment portion 52 provided on the rear case 32.

  Since the front case 31 is repeatedly pressed when input using the operation unit, the front case 31 is formed using a forming material having a material strength stronger than that of the rear case 32 to prevent fatigue destruction of the case. The front case 31 of the present embodiment uses glass fiber reinforced plastics (FRP: Fiber Reinforced Plastics) mixed with glass fibers using a polyamide resin as a matrix (base material) as a forming material.

  The rear case 32 is molded using a forming material that is excellent in moldability and has a relatively high strength. The rear case 32 of this embodiment uses polycarbonate resin as a forming material.

  As shown in FIG. 2B, the attachment portion 51 of the front case 31 includes a strap hole (insertion portion) 51a in which a part of the front case 31 is formed in a cylindrical shape (or a tunnel shape), and a locking member 51b. The attachment portion 52 of the rear case 32 includes two through holes (insertion portions) 52a that penetrate the side walls of the rear case 32, and a locking member 52b that is positioned between the two through holes 52a. And have. The front case 31 and the rear case 32 are coupled with each other by being locked by a flange provided on the case member or screwed as necessary.

  FIG. 3 is a cross-sectional view showing a cross-sectional structure of the strap attachment portion 5. In the present embodiment, the second casing 3 is formed by fitting the rear case 32 so as to cover the front case 31, and the attachment portion 51 and the attachment portion 52 are formed by fitting both cases. Are integrated to form the strap attachment portion 5.

  That is, when the front case 31 and the rear case 32 are overlapped, the opening portions at both ends of the strap hole 51 a in the attachment portion 51 are located at the same positions as the through holes 52 a in the attachment portion 52, and the strap hole 5 a of the strap attachment portion 5. Form. In addition, the locking member 51 b is disposed so as to cover the outer surface of the locking member 52 b and be in close contact with the locking member 52 b, thereby forming the locking portion 5 b of the strap attachment portion 5.

  Due to such a structure, when the strap is locked to the strap attachment portion 5, the strap passes through both the strap hole 51a of the front case 31 and the through hole 52a of the rear case 32. . Therefore, the front case 31 and the rear case 32 are connected to each other using the attached strap, and in the conventional structure, the front case 31 and the rear case 32 are firmly connected to each other using the strap that causes damage to the device. Can be locked to.

  Moreover, in the latching | locking part 5b which latches a strap, the strap to be attached is held using both the latching member 51b of the front case 31 and the latching member 52b of the rear case 32. In the conventional structure, if the locking portion is formed to be thick when the strength of the locking portion is insufficient, sink marks tend to occur and the appearance is impaired. However, in the configuration of the present embodiment, the locking members 51b, 52b is integrated and constitutes the locking portion 5b. Therefore, it can be set as the thick latching | locking part 5b as a whole, and the latching members 51b and 52b can cooperate and can hold | maintain a strap firmly.

Further, even if the locking member 51b is designed to be thick enough to cause sinking in order to achieve higher strength, the locking member 52b covers the locking member 51b, so that the locking member 51b is exposed to the outside. There is no exposure and the appearance is not impaired.
The mobile phone 1A of the present embodiment has the above configuration.

  According to the mobile phone 1A configured as described above, the locking portion 5b is configured such that the locking members 51b and 52b overlap in the thickness direction from the inside of the housing to the outside. Therefore, the locking members 51b and 52b that overlap in the same direction counteract the pulling force from the inside to the outside of the housing in cooperation, and the force applied to the locking part 5b is distributed to the locking members 51b and 52b. Therefore, the stress applied to each of the locking members 51b and 52b can be reduced, and damage to the locking portion 5b can be suppressed.

  Furthermore, when the strap is locked to the strap attachment portion 5, the strap passes through both the strap hole 51 a of the front case 31 and the through hole 52 a of the rear case 32. Accordingly, the front case 31 and the rear case 32 are connected together using the attached strap, and only one case part is pulled and deformed, resulting in a gap between the other case part. Such problems can be suppressed.

  In addition, according to the configuration of the present embodiment, the locking members 51b and 52b are brought into close contact with each other, so that the locking portion 5b can be made stronger. Can do.

  Moreover, according to the configuration of the present embodiment, even if a tensile force is repeatedly applied to the locking portion 5b through the strap, the mobile phone 1A can be made highly reliable without being easily damaged.

  Further, according to the configuration of the present embodiment, the locking member 51b can be made strong by forming it thick, and even if the sinking of the locking member 51b occurs, the locking member 51b can lock the locking member 51b. Therefore, it is possible to achieve both improvement in strength and suppression of appearance defects.

  In the present embodiment, the rear case 32 is fitted so as to cover the front case 31, but conversely, the front case 31 may be fitted so as to cover the rear case 32. It can be appropriately selected according to other factors such as design and ease of formation.

  In the present embodiment, the front case 31 and the rear case 32 are made of different forming materials, but the same forming material may be used.

  Moreover, in this embodiment, although the strap attaching part 5 was arrange | positioned at the corner | angular part of the 2nd housing | casing 3, it is not restricted to this.

  4A and 4B are explanatory views of a mobile phone 1B showing a modification of the present invention, in which FIG. 4A is a side view, and FIG. 4B is a cross-sectional view showing a cross-sectional structure of a strap attachment portion of the mobile phone 1B. It is. 4 (a) corresponds to FIG. 1 (b), and FIG. 4 (b) corresponds to FIG.

  As shown in FIG. 4A, the cellular phone 1 </ b> B is provided with a strap attachment portion 7 on the side wall 6 s of the second housing 6. The second housing 6 is formed by coupling a front case 61 and a rear case 62. In addition, the strap attachment portion 7 has an opening portion of the strap hole 7 a on the same side wall 6 s of the second housing 6.

  As shown in FIG. 4B, the second case 6 is formed by fitting the rear case 62 so as to cover the front case 61, and the front case 61 is formed by fitting both cases. The attachment portion 71 provided on the rear case 62 and the attachment portion 72 provided on the rear case 62 are integrated to form the strap attachment portion 7. At that time, similarly to the cellular phone 1 </ b> A, openings at both ends of the strap hole 71 a in the attachment portion 71 are located at the same positions as the through holes 72 a in the attachment portion 72, thereby forming the strap hole 7 a of the strap attachment portion 7. Further, a locking member 71 b is disposed so as to cover the outer surface of the locking member 72 b, thereby forming a locking portion 7 b of the strap attachment portion 7.

  Even with the mobile phone 1B having such a configuration, it is possible to provide a highly reliable mobile phone 1B that includes the strong locking portion 7b as in the mobile phone 1A and does not warp the rear case 62. I can do it.

  In the present embodiment, the mobile phone has been described, but other mobile electronic devices such as a PDA and a digital camera may be used.

  The preferred embodiments of the present invention have been described above with reference to the accompanying drawings, but it goes without saying that the present invention is not limited to such examples. Various shapes, combinations, and the like of the constituent members shown in the above-described examples are examples, and various modifications can be made based on design requirements and the like without departing from the gist of the present invention.

It is explanatory drawing which shows the mobile telephone which concerns on embodiment of this invention. It is a disassembled perspective view of the 2nd housing | casing which concerns on the mobile telephone of this embodiment. It is sectional drawing which shows the cross-section of a strap attachment part. It is explanatory drawing of the mobile telephone which shows the modification of embodiment of this invention. It is explanatory drawing which shows the mobile telephone which is an example of a portable electronic device. It is explanatory drawing which shows the subject of the portable electronic device of a prior art example.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1A, 1B ... Mobile phone (mobile electronic device), 3 ... 2nd housing | casing (casing), 3s, 6s ... Side wall, 5, 7 ... Attachment part, 5a, 150a ... Strap hole, 5b, 7b ... Locking , 31, 61 ... front case (case parts), 32, 62 ... rear case (case parts), 51a, 52a ... insertion parts, 51b, 52b, 71b, 72b ... locking parts (locking members), S ... strap,

Claims (4)

A portable electronic device in which a mounting portion for locking a strap is provided on a casing configured by combining two case parts facing each other,
The attachment portion has a strap hole through which a strap is inserted, and a locking portion that locks the strap and constitutes a part of the wall surface of the strap hole,
Each of the two case parts is provided with an insertion portion for inserting the strap, and a locking member for locking the strap,
Each of the locking members overlaps in the thickness direction of the side wall of the housing to constitute the locking portion, and each of the insertion portions overlaps each other to form the strap hole. Portable electronic devices.   The portable electronic device according to claim 1, wherein the locking members are in close contact with each other.   Of each of the locking members, the forming material of the locking member disposed inside the casing has higher material strength than the forming material of the locking member disposed outside the casing. The portable electronic device according to claim 1 or 2, characterized in that   2. The locking member disposed inside the casing among the locking members is formed thicker than the locking member disposed outside the casing. 4. The portable electronic device according to any one of items 1 to 3.

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