JP5652861B2 - Strap attachment mechanism - Google Patents

Description

  The present invention relates to a strap attachment mechanism for attaching a strap to a housing of a mobile phone terminal or the like.

  When the strap is attached to the casing of the mobile phone terminal, the user can hang the mobile phone terminal by, for example, wrapping the strap around the wrist and carry the mobile phone terminal, thereby improving the portability of the mobile phone terminal. In recent years, a lot of fashionable straps have been sold, and many users add decorations to their mobile phone terminals by attaching straps of their favorite designs to their mobile phone terminals.

  As shown in FIG. 4, the strap attachment mechanism for the casing of the mobile phone terminal is such that holes 113 a and 113 b communicating with each other are formed at the corners of the front face 111 and the side face 112 of the casing 101. It has been known. In such a strap attachment mechanism, the strap 105 is inserted from one of the hole portions 113 a or 113 b into the other, and the other end of the strap 105 is inserted into the annular portion 105 a of the strap 105. The strap 105 is attached to the housing 101 by being entangled.

  Such a strap attachment mechanism has a simple configuration and can be easily attached to the strap. However, in such a strap attachment mechanism, the hole 113a is visible on the front surface of the housing 101, which is not preferable in terms of design.

  Therefore, as shown in FIG. 5, it is conceivable to form communicating holes 213 a and 213 b on the side surface 212 of the housing 201. When the strap attachment mechanism is configured so as to form the holes 213a and 213b on the side surface 212 of the housing 201, the holes are not visible on the front surface of the housing 201, and the design is not impaired.

Here, as various strap attachment mechanisms designed to improve design and attachment strength, those shown in the following patent documents have been proposed.
Japanese Patent Application Laid-Open No. H10-228688 describes a strap member that prevents the strap attachment means from being seen from the outside so as not to affect the appearance.
Further, in Patent Document 2, an attachment member having an engagement rod capable of engaging the strap is prepared, and the attachment member is engaged between the front case and the rear case constituting the case body, It describes a design with less design constraints and increased mounting strength.
Further, Patent Document 3 describes a device that can achieve a reduction in appearance by forming a pair of through holes and ribs in the back case and providing a bottom wall that defines a mounting hole in the entire case. ing.

JP-T-2005-109224 JP-A-2005-109224 Japanese Patent Laid-Open No. 11-54947

  By the way, as shown in FIG. 5, when the strap attachment mechanism is configured so as to form two communicating holes 213a and 213b on the side surface 212 of the casing, the holes cannot be seen on the front surface of the casing. No loss of design. However, in recent years, the case of a mobile phone terminal has a tendency to be thin, and in the case of a thin case, it is difficult to secure a wide space for providing a strap attachment mechanism on the side surface of the case.

  In particular, when the case is configured by assembling the front case and the rear case, if the strap attachment mechanism is provided on the side surface of the case, the strap attachment mechanism is provided at the portion where the front case and the rear case overlap. Need arises.

  For example, as shown in FIG. 6, when the housing 300 is configured by fitting the rear case 302 to the outside of the front case 301, the holes 313 a and When the strap attachment mechanism is provided by 313b, the load of the strap is received only by the rear case 302, so that it is difficult to sufficiently secure the attachment strength of the strap. On the other hand, if the material of the rear case 302 is a thick member in order to improve the attachment strength of the strap, the mobile phone terminal itself becomes large and portability is impaired.

  On the other hand, as shown in FIG. 7, it is also conceivable to form a strap attachment mechanism by forming communicating holes 413a and 413b in the front case 401 that is on the inside. In this case, in order to expose the holes 413a and 413b provided in the front case 401 to the outside, it is necessary to provide an opening 415 in the rear case 402 that is on the outside.

  However, when the holes 413a and 413b are provided in the front case 401 as shown in FIG. 7, a recess T is formed by the opening 415 as shown in FIG. It ’s stupid. Further, when the color of the front case 401 and the color of the rear case 402 are changed in order to improve the design, the color of the front case 401 can be seen at the opening 415 and the design is impaired. It is.

  In addition, in what is shown by patent document 1, the cover member for preventing a strap attachment means from being visible from the outside is needed. Moreover, in what is shown by patent document 2, it is necessary to prepare the attachment member which has a latching bar which can latch a strap newly. Moreover, in what is shown by patent document 3, since all the load concerning a strap will be received with the rib of a back case side, there exists a possibility that the attachment strength of a strap may be insufficient.

  The present invention has been made in view of such problems, and an object of the present invention is to provide a strap attachment mechanism that can obtain a high strength while ensuring designability and can easily attach a strap. And

In order to solve the above-described problems, a strap attachment mechanism according to the present invention includes a first and second hole, and a first locking portion provided between the first and second holes. A first case having a side surface, a third and fourth hole portion, and a second case having a second locking portion provided between the third and fourth hole portions on the side surface When the second case is fitted to the outside of the first case to form a housing, the first and second hole portions and the third and fourth hole portions are Strap attachment holes are formed by communicating with each other , and the second case is provided around the third and fourth holes so as to correspond to the third and fourth holes, respectively. It has a pair of raised parts .

  According to the present invention, the strap attachment hole is formed on the side surface of the housing, and the strap attachment hole is not visible from the front of the housing, so that the design can be ensured. Further, according to the present invention, since the locking portion of the front case and the locking portion of the rear case overlap at the same position and become the strap hooking portion, it is possible to sufficiently secure the strap attachment strength. Furthermore, according to the present invention, since the concave portion does not occur in the strap mechanism portion, the strap can be easily attached.

It is a disassembled perspective view which shows the structure of the housing | casing of the mobile telephone terminal which concerns on the strap attachment mechanism of embodiment of this invention. It is the front view and side view of a mobile telephone terminal which concern on the strap attachment mechanism of embodiment of this invention. It is sectional drawing used for description of the strap attachment mechanism of embodiment of this invention. It is explanatory drawing of the strap attachment mechanism which formed the hole part connected to the corner part of the front and side of a housing | casing. It is explanatory drawing of the strap attachment mechanism which formed the hole part connected to the side surface of the housing | casing. It is explanatory drawing at the time of providing a strap attachment mechanism in the rear case side. It is explanatory drawing at the time of providing a strap attachment mechanism in the front case side. It is explanatory drawing at the time of providing a strap attachment mechanism in the front case side.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is an exploded perspective view showing a configuration of a casing 1 of a mobile phone terminal according to a strap attachment mechanism of an embodiment of the present invention. As shown in FIG. 1, a housing 1 of a mobile phone terminal according to an embodiment of the present invention has a rear case (second housing) 21 fitted outside a front case (first housing) 11. Configured.

  An electronic board (not shown) is accommodated in the front case 11. A camera unit 23 is disposed on the upper surface of the rear case 21. A hinge portion 10 is provided at the front end of the front case 11. The hinge portion 10 is for rotatably connecting the housing 1 and the other housing (not shown) provided with a display or the like.

  Further, in the case 1 of the mobile phone terminal according to the first embodiment of the present invention, the front case 11 that contributes to the rigidity of the entire device is required to have higher strength than the rear case 21. For this reason, the material used for the front case 11 is higher in rigidity than the material used for the rear case 21.

  As shown in FIG. 1, the front case 11 has side plates 12a and 12b. One side plate 12a of the front case 11 has hole portions (first and second hole portions) 15a and 15b and a locking portion (first locking portion) 16 between the hole portions 15a and 15b. Provided.

  The rear case 21 has side plates 22a and 22b. The distance between the inner sides of the side plates 22 a and 22 b of the rear case 21 corresponds to the distance between the outer sides of the side plates 12 a and 12 b of the front case 11. Also, one side plate 22a of the rear case 21 has holes (third and fourth holes) 25a and 25b, and locking portions (second locking portions) between the holes 25a and 25b. 26 is provided. The positions of the holes 25a and 25b correspond to the holes 15a and 15b of the front case 11, respectively. Further, the position of the locking portion 26 corresponds to the position of the locking portion 16 of the front case 11. Further, a raised portion 27 is provided around the holes 25a and 25b. The raised portion 27 is raised in a smooth curved shape.

  As shown in FIG. 1, the front case 11 and the rear case 21 are disposed so as to face each other, and the rear case 21 is fitted and fixed to the outside of the front case 11. A battery case 13 is fixed to the front case 11.

  FIGS. 2A and 2B are a front view and a side view showing a state when the rear case 21 and the battery case 13 are fixed to the front case 11.

  As described above, the distance between the outer sides of the side plates 12a and 12b of the front case 11 corresponds to the distance between the inner sides of the side plates 22a and 22b of the rear case 21. For this reason, when the rear case 21 is fixed to the front case 11, the side plates 22 a and 22 b of the rear case 21 are fitted so as to overlap the outside of the side plates 12 a and 12 b of the front case 11. Thereby, a step is generated between the front case 11 and the rear case 21 at the dividing line 30 as shown in FIG. In such a structure, the required strength can be maintained even if the casing 1 is thin. Further, if the color of the front case 11 and the color of the rear case 21 are made different, a two-tone design in which the colors are separated by the dividing line 30 can be achieved, and the design can be improved.

  Further, as described above, in the case 1 of the mobile phone terminal according to the first embodiment of the present invention, the positions of the holes 25a and 25b of the rear case 21 and the holes 15a and 15b of the front case 11 are Each position corresponds to each other. Further, the position of the locking portion 26 corresponds to the position of the locking portion 16. For this reason, when the rear case 21 is fixed to the front case 11, the positions of the holes 15a and 15b of the front case 11 and the holes 25a and 25b of the rear case 21 are aligned, and the holes 15a and 15b and the holes 25a and 25b are aligned. And the strap attachment holes 33a and 33b shown in FIG. 2B are formed. Further, the position of the locking part 16 of the front case 11 and the position of the locking part 26 of the rear case are aligned, and the locking part 16 and the locking part 26 overlap with each other, and the strap hook of FIG. A portion 34 is formed.

  The strap attachment mechanism having such a structure will be further described. 3A and 3B illustrate a cross-sectional structure of the housing illustrated in FIG. 3A shows a cross-sectional view taken along the line AA of the housing 1 shown in FIG. 2A, and FIG. 3B shows a cross-sectional view taken along the line BB.

  The two holes 15a and 15b of the front case 11 communicate with each other inside the side plate 12a. In FIG. 3A, the insertion port 32 is connected to the two holes 15a and holes of the front case 11. The portion 15b is formed in communication with the inside of the front case 11. When the side plates 22a and 22b of the rear case 21 are overlapped and fixed to the outside of the side plates 12a and 12b of the front case 11, as shown in FIG. 3A, the locking portion 16 of the front case 11 and the rear case 21 are fixed. The locking portion 26 is overlapped at the same position, whereby the strap hooking portion 34 is formed. Further, as shown in FIG. 3B, the hole 15b of the front case 11 and the hole 25b of the rear case 21 communicate with each other to form a strap attachment hole 33b. Similarly, the hole 15a of the front case 11 and the hole 25a of the rear case 21 are communicated to form a strap attachment hole 33a (see FIG. 2B).

  3A and 3B, when the strap is attached, the user uses the strap attachment holes 33a or 33b formed by communicating the holes 15a and 15b and the holes 25a and 25b. An annular portion at the tip of a strap (not shown) is inserted from one of them, and the tip of the strap is passed through the insertion port 32 and pulled out from the other of the strap attachment holes 33a or 33b, The other end of the strap is entangled with the annular portion, and the strap is fixed. At this time, a raised portion 27 is provided around the holes 25a and 25b. Therefore, the user can easily insert the leading end of the strap into the strap attachment hole 33a or 33b while guiding the leading end of the strap with the raised portion 27.

  In the case 1 of the cellular phone terminal according to the first embodiment of the present invention, the strap attachment mechanism is configured by the two strap attachment holes 33a and 33b provided on the side surface. For this reason, it becomes a structure where a strap attachment hole cannot be seen from the front of case 1, and aesthetics are maintained.

  Further, as shown in FIG. 3A, the locking portion 16 of the front case 11 and the locking portion 26 of the rear case 21 overlap at the same position to form a strap hooking portion 34. For this reason, when the strap is attached, the strap load is received by the strap hooking portion 34 in which the locking portion 16 of the highly rigid front case 11 and the locking portion 26 of the rear case 21 are overlapped. A sufficient mounting strength can be secured.

  Furthermore, in the case 1 of the cellular phone terminal according to the first embodiment of the present invention, the locking portion 16 of the front case 11 and the locking portion 26 of the rear case 21 overlap at the same position, so that the strap mechanism portion There is no recess in the strap and the strap is easy to attach. Furthermore, by providing the raised portions 27 around the holes 25a and 25b, the strap can be attached more easily.

  The present invention is not limited to the above-described embodiments, and various modifications and applications can be made without departing from the gist of the present invention.

1: Housing 10: Hinge portion 11: Front case (first case)
12a, 12b: side plate 13: battery case 15a, 15b: hole (first and second holes)
16: Locking part (first locking part)
21: Rear case (second case)
22a, 22b: Side plate 23: Camera part 25a, 25b: Hole (third and fourth hole)
26: Locking part (second locking part)
27: Raised portion 30: Dividing line 32: Insertion openings 33a, 33b: Strap attachment hole 34: Strap hooking portion

Claims (2)

A first case having side surfaces of first and second hole portions and a first locking portion provided between the first and second hole portions;
A second case having side surfaces of third and fourth holes and a second locking portion provided between the third and fourth holes;
The first and second holes and the third and fourth holes communicate with each other when the second case is fitted to the outside of the first case to form a housing. A strap attachment hole is formed and a strap hooking portion is formed by overlapping the first locking portion and the second locking portion with each other,
The second case is the periphery of the third and fourth holes, characterized in that it has a pair of raised portions provided so as to respectively third and fourth holes corresponding strap attachment mechanism.   The strap attachment mechanism according to claim 1, wherein the rigidity of the first case is higher than the rigidity of the second case.

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