JP2014045292A - Portable terminal device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a portable terminal device capable of improving the impact resistance and realizing the downsizing and the thickness reduction.SOLUTION: A portable terminal device according to this invention includes: a housing 10; a display panel 80 which covers the housing 10; and a fixing member 30 provided between a side wall 11 provided around the housing 10 and the display panel 80. The fixing member 30 includes a hook 41 which fits in a protruding part 16 provided at the side wall 11 of the housing 10. A gate mark 52 is formed at the hook 41. For example, the gate mark 52 is formed at a root part 51 provided at the inner peripheral side of the fixing member 30.

Description

  The present invention relates to a mobile terminal device, and more particularly to a mobile terminal device using a thin flat housing.

  In recent years, mobile terminal devices such as mobile phones and smartphones are widely used. In general, since a user often carries and uses a mobile terminal device, for example, when the user accidentally drops the mobile terminal device, a strong impact is applied to the mobile terminal device.

  Patent Document 1 discloses a technique related to a liquid crystal display device protection structure for an electronic device that can prevent the liquid crystal display device from being damaged while reducing the size of the external appearance. Patent Document 2 discloses a technique related to an intercom device that can be easily attached to and detached from a case of a liquid crystal display panel.

JP 2006-011163 A JP 2007-208505 A

  In a mobile terminal device including a housing and a display panel, for example, a shock-proof property of the mobile terminal device is improved by providing a fixing member made of a low-rigidity material such as a resin material between the display panel and the housing. be able to. That is, by providing a fixing member with low rigidity between the display panel with high rigidity and the housing, the impact applied to the display panel and the housing can be absorbed using the fixing member. Here, since the fixing member is made of a resin material, it is necessary to inject resin from the gate into the mold when the fixing member is molded.

  However, a gate mark is formed at a position corresponding to the gate in the fixed member after molding. For this reason, depending on the position where the gate mark is formed, the thickness of the fixing member may increase, or the gate mark may interfere with other components. Therefore, in order to improve the impact resistance of the mobile terminal device and to realize a reduction in size and thickness, it is necessary to arrange the position of the gate mark formed when the fixing member is formed at an appropriate position.

  In view of the above-described problems, an object of the present invention is to provide a portable terminal device capable of realizing improvement in impact resistance and reduction in size and thickness.

  A mobile terminal device according to the present invention includes a housing, a display panel that covers the housing, a side wall provided around the housing, and a fixing member provided between the display panel, The fixing member has a hook that engages with a protrusion provided on the side wall of the housing, and a gate mark is formed on the hook.

  According to the present invention, it is possible to provide a mobile terminal device capable of realizing improvement in impact resistance and reduction in size and thickness.

1 is an exploded perspective view showing a mobile terminal device according to a first exemplary embodiment; 1 is a perspective view showing a mobile terminal device according to a first exemplary embodiment; 1 is a top view showing a mobile terminal device according to a first exemplary embodiment; FIG. 3 is an enlarged perspective view of a part of a fixing member provided in the mobile terminal device according to the first exemplary embodiment. It is sectional drawing in VV of the portable terminal device shown in FIG. FIG. 6 is a cross-sectional view for explaining a process of assembling the mobile terminal device according to the first exemplary embodiment; FIG. 6 is a cross-sectional view for explaining a process of assembling the mobile terminal device according to the first exemplary embodiment; FIG. 6 is a cross-sectional view for explaining a process of assembling the mobile terminal device according to the first exemplary embodiment; FIG. 6 is a cross-sectional view for explaining a process of assembling the mobile terminal device according to the first exemplary embodiment; 3 is a cross-sectional view for explaining a state of a hook 41 when the fixing member 30 included in the mobile terminal device according to the first embodiment is attached to the housing 10. FIG. FIG. 10 is a cross-sectional view for explaining a process of assembling the mobile terminal device according to the second exemplary embodiment; FIG. 10 is a cross-sectional view for explaining a process of assembling the mobile terminal device according to the second exemplary embodiment; FIG. 10 is a cross-sectional view for explaining a process of assembling the mobile terminal device according to the second exemplary embodiment; FIG. 10 is a cross-sectional view for explaining a process of assembling the mobile terminal device according to the second exemplary embodiment; It is a perspective view which shows the other aspect of the fixing member with which the portable terminal device concerning Embodiment 2 is provided. FIG. 10 is a cross-sectional view for explaining a process of assembling the mobile terminal device according to the third exemplary embodiment; FIG. 10 is a cross-sectional view for explaining a process of assembling the mobile terminal device according to the third exemplary embodiment; FIG. 10 is a cross-sectional view for explaining a process of assembling the mobile terminal device according to the third exemplary embodiment; FIG. 10 is a cross-sectional view for explaining a process of assembling the mobile terminal device according to the third exemplary embodiment; It is sectional drawing which shows the other aspect of the fixing member with which the portable terminal device concerning Embodiment 3 is provided.

<Embodiment 1>
Embodiment 1 of the present invention will be described below with reference to the drawings.
FIG. 1 is an exploded perspective view showing a mobile terminal device 1 according to the present embodiment. The mobile terminal device 1 according to the present embodiment includes a housing 10, a frame 20, a fixing member 30, an adhesive member 70, and a display panel 80. In the mobile terminal device 1 according to the present embodiment, the frame 20 including a substrate, a battery, and the like (not shown) is accommodated in a space formed by joining the housing 10 and the display panel 80 via the fixing member 30. The The mobile terminal device 1 according to the present embodiment is, for example, a smartphone, a tablet-type mobile terminal device, a mobile phone, a game machine, an electronic book terminal, or the like.

  The housing 10 includes a recess 15 that can accommodate predetermined members (a frame 20 including a substrate and a battery, an antenna (not shown), a speaker, a camera, and the like), and a side wall 11 that is provided around the recess 15. . The back surface of the housing 10 shown in FIG. 1 may be formed to have a curve so as to fit the user's hand, or may be formed flat.

  In order to maintain the strength of the mobile terminal device, the housing 10 is preferably made of a highly rigid material. For example, the housing 10 can be configured using a crystalline polyamide (PA) resin reinforced with glass fiber. Further, for example, the housing 10 may be configured using a carbon composite material (carbon fiber reinforced plastics (CFRP: Carbon Fiber Reinforced Plastics)). The carbon composite material is a composite material containing 50% by volume or more of carbon and containing an inorganic binder such as silica and alumina, a fiber, and the like. Carbon composite material has both high strength and lightness. Moreover, you may comprise the housing | casing 10 using a resin material and a carbon composite material. In this case, for example, the carbon composite material can be formed by placing it at a predetermined location on the mold of the housing 10 and performing injection molding.

  The frame 20 includes frame members 21 and 22 extending in the longitudinal direction of the housing 10 and a plurality of beam members 23, 24 and 25 extending in a direction intersecting the longitudinal direction of the housing 10 and connected to the frame members 21 and 22. Have. Since the frame 20 is a member for holding a substrate, a battery, and the like, it needs a certain degree of strength. Therefore, the frame 20 is preferably formed using a metal material. Examples of the material used for the frame 20 include magnesium alloy, aluminum, and stainless steel. In view of weight reduction of the mobile terminal device, it is preferable to use a magnesium alloy. For example, the frame 20 to which a substrate, a battery, or the like is fixed can be fixed to a mounting portion provided at a corner portion of the concave portion 15 of the housing 10 using a screw or the like. In the present specification, for the sake of simplicity, illustration and detailed description of components such as a substrate and a battery that are not directly related to the configuration of the present invention are omitted.

  The fixing member 30 is provided between the side wall 11 of the housing 10 and the display panel 80. The fixing member 30 includes hooks 41 to 48, and the fixing member 30 is configured by fitting the hooks 41 to 48 with a protruding portion (see the protruding portion 16 in FIG. 5) provided on the side wall 11 of the housing 10. Can be fixed to the side wall 11. In addition, arrangement | positioning of the hooks 41-48 provided in the fixing member 30 shown in FIG. 1 is an example, and the number and arrangement | positioning of the hook provided in the fixing member 30 can be determined arbitrarily.

  The fixing member 30 can be formed using a soft material, that is, a material having low rigidity as compared with main parts such as the housing 10 and the display panel 80. For example, the fixing member 30 can be formed using a resin material (general-purpose engineering plastic such as polycarbonate, thermoplastic elastomer, or the like).

  For example, the fixing member 30 can be integrally molded using an injection molding method. When the fixing member 30 is formed using an injection molding method, resin is injected into the mold from the gate (injection port). At this time, a gate mark is formed on the molded fixing member 30 at a position corresponding to the gate position. Although the gate trace is cut by a machine or a human hand after molding, generally, a gate trace on the order of 0.1 mm remains, for example.

  The adhesive member 70 is a member for joining the fixing member 30 and the display panel 80 together. For the adhesive member 70, for example, a double-sided tape can be used. The adhesive member 70 is provided at a position corresponding to each side of the fixing member 30. In the mobile terminal device according to the present embodiment, an adhesive may be used as the adhesive member 70. In this case, an adhesive is applied to the adhesive surface of the fixing member 30 (that is, the surface that contacts the display panel 80 of the fixing member 30).

  The display panel 80 includes, for example, a liquid crystal panel, an organic EL (Electro Luminescence) panel, and the like. The display panel 80 may include a touch panel. The display panel 80 is attached to the housing 10 via the fixing member 30 so as to cover the housing 10. Here, since it is necessary to protect the liquid crystal and the like from the external environment, the display panel is formed using, for example, a transparent and highly rigid material (for example, tempered glass).

  Here, the rigidity of the fixing member 30 is lower than the rigidity of the housing 10 and the display panel 80. Therefore, the impact resistance of the mobile terminal device can be improved by providing the fixing member 30 between the housing 10 and the display panel 80. That is, by providing the fixing member 30 with low rigidity between the highly rigid housing 10 and the display panel 80, it is possible to absorb the impact applied to the housing 10 and the display panel 80 using the fixing member 30.

  FIG. 2 is a perspective view showing the mobile terminal device 1 according to the present embodiment. FIG. 3 is a top view showing the mobile terminal device 1 according to the present embodiment. For example, the mobile terminal device 1 according to the present embodiment may be configured such that the fixing member 30 is exposed to the outside so as to surround the display panel. In this way, by configuring the fixing member 30 to be exposed to the outside, the display panel 80 can be protected from an impact received from the outside.

  FIG. 4 is an enlarged perspective view of a part of the fixing member 30 provided in the mobile terminal device according to the present embodiment. As shown in FIG. 4, the fixing member 30 includes a surface 61 (first surface) on the housing 10 side and a surface 62 (second surface) on the display panel 80 side. The side wall 11 of the housing 10 abuts on the surface 61 of the fixing member 30. A display panel 80 is attached to the surface 62 of the fixing member 30 using an adhesive member 70.

  The fixing member 30 includes a hook 41. The fixing member 30 includes a base portion 51 of the hook 41 on the inner peripheral side. The hook 41 can bend in the direction perpendicular to the surface 56 with the base 51 as the center. A gate mark 52 is formed on the surface 56 of the hook 41. For example, the gate mark 52 is formed on the base portion 51 of the hook 41 so as to protrude from the surface 56 into the housing 10. Further, a protrusion 58 is formed on the outer peripheral surface of the hook 41. Furthermore, the fixing member 30 includes a protrusion 55 that surrounds the outer periphery of the display panel 80 on the outer peripheral side.

  5 is a cross-sectional view taken along the line V-V of the mobile terminal device shown in FIG. As shown in FIG. 5, the fixing member 30 is disposed between the side wall 11 of the housing 10 and the display panel 80. The side wall 11 of the housing 10 includes a protruding portion 16 that protrudes toward the center of the housing 10 at the upper end. Then, the hook 41 of the fixing member 30 is fitted to the protruding portion 16 provided on the side wall 11 of the housing 10 to fix the fixing member 30 to the side wall 11 of the housing 10. In other words, the fixing member 30 is fixed to the side wall 11 of the housing 10 by engaging the protrusion 58 provided on the hook 41 with the protrusion 16 provided on the side wall 11 of the housing 10. At this time, the top surface 17 of the side wall 11 and the surface 61 of the fixing member 30 are in contact with each other. In addition, although FIG. 5 demonstrated the hook 41, it is the same also about the hooks 42-48 shown in FIG.

  As shown in FIG. 5, the display panel 80 is attached to the surface 62 (including the surface of the base portion 51) of the fixing member 30 using an adhesive member 70. The frame member 21 is disposed in the housing 10 at a position corresponding to the side wall 11 (the same applies to the frame member 22). The display panel 80 is attached to the surface 27 of the frame member 21 using an adhesive member 70. That is, the display panel 80 is attached to the surface 62 of the fixing member 30 and the surface 27 of the frame member 21 on the display panel side using the adhesive member 70. As described above, in a state where the mobile terminal device 1 is assembled, the fixing member 30 is fixed with the casing 10, the display panel 80, and the frame member 21 made of a material having a higher rigidity than the fixing member 30. Thus, the hook 41 can be structured to be difficult to bend.

  The fixing member 30 includes a protrusion 55 that surrounds the outer periphery of the display panel 80 on the outer peripheral side of the fixing member 30. A gate mark 52 projects from the surface 56 of the hook 41 in the direction in which the frame member 21 is disposed. Here, the gate trace 52 is preferably formed so as to protrude from the base portion 51 of the hook 41. The surface 63 on the display panel 80 side of the gate mark 52 is disposed on the surface 61 side with respect to the surface 62 of the fixing member 30. With such a configuration, it is possible to suppress the gate trace 52 from being deformed and interfering with the display panel 80 or the adhesive member 70. A predetermined gap is provided between the side surface 26 of the frame member 21 and the fixing member 30.

  6A to 6D are cross-sectional views for explaining a process of assembling the mobile terminal device according to the present embodiment. As shown in FIG. 6A, before the fixing member 30 is attached to the housing 10, the hook 41 of the fixing member 30 is not bent because it is not subjected to stress from the outside. For example, in the case shown in FIG. 6A, the direction in which the hook 41 extends from the base portion 51 is a vertical direction (downward direction in the drawing). The frame member 21 is already attached to the housing 10.

  As shown in FIG. 6B, when the fixing member 30 is brought closer to the side wall 11 of the housing 10, the hook 41 comes into contact with the protruding portion 16 of the side wall 11 and the hook 41 is on the frame member 21 side (in the direction away from the side wall 11). Bend. That is, the hook 41 bends toward the frame member 21 by the protrusion 58 of the hook 41 coming into contact with the protrusion 16 of the side wall 11. A predetermined gap α is provided between the side surface 26 of the frame member 21 and the fixing member 30. For example, the predetermined gap α is such that the tip portion 59 of the hook 41 does not interfere with the side surface 26 of the frame member 41 when the hook 41 is fitted to the protruding portion 16. In addition, the predetermined gap α is such that the gate mark 52 provided on the hook 41 does not interfere with the side surface 26 of the frame member 21 when the hook 41 is fitted to the protruding portion 16.

  As shown in FIG. 6C, when the fixing member 30 is further moved closer to the side wall 11 of the housing 10, the hook 41 is fitted to the protruding portion 16 of the side wall 11, and the fixing member 30 is fixed to the housing 10. That is, the protrusion 58 of the hook 41 and the protrusion 16 of the side wall 11 are engaged with each other, and the fixing member 30 is fixed to the housing 10. At this time, the top surface 17 of the side wall 11 and the surface 61 of the fixing member 30 are in contact with each other.

  Then, as shown in FIG. 6D, the display panel 80 is fixed to the surface 62 of the fixing member 30 and the surface 27 of the frame member 21 using the adhesive member 70. By fixing the display panel 80 to the fixing member 30 and the frame member 21 in this manner, the hook 41 can be made difficult to bend. That is, by fixing the display panel 80 to the fixing member 30 and the frame member 21, a downward force (a direction away from the display panel 80) acts on the base portion 51 of the fixing member 30. It can suppress that it bends to 21 side (center side of the housing | casing 10). Since the frame member 21 is firmly fixed to the bottom surface of the casing 10 using screws or the like, the fixing member 30 is fixed to the casing 10 by fixing the display panel 80 across the fixing member 30 and the frame member 21. Can be firmly fixed.

  6D is disassembled in order of FIG. 6D, FIG. 6C, FIG. 6B, and FIG. 6A in order to change from the assembled state of the mobile terminal device shown in FIG. 6D to the disassembled state of the mobile terminal device shown in FIG. 6A.

  FIG. 7 is a cross-sectional view for explaining a state of the hook 41 when the fixing member 30 included in the mobile terminal device according to the present embodiment is attached to the housing 10. As shown in FIG. 7, when the fixing member 30 is attached to the housing 10, the hook 41 is bent toward the frame member 21 (in a direction away from the side wall 11). The bending amount D at this time is D = β × sin θ, where β is the length of the hook 41 and θ is the bending angle of the hook 41 (that is, the angle of the surface 56 with respect to the vertical direction). Therefore, considering only the deflection amount D of the hook 41, the minimum value of the gap α provided between the fixing member 30 and the frame member 21 is the deflection amount D.

  However, considering the dimensional accuracy of the casing 10, the frame 20, and the fixing member 30 and the ease of work when attaching the fixing member 30 to the casing 10, the gap α is set to be larger than the deflection amount D of the hook 41. It is preferable. On the other hand, if the gap α is too large, the sticking area when sticking the display panel 80 to the frame member 21 and the fixing member 30 is reduced, leading to an increase in the size of the portable terminal device. Therefore, the value of the gap α is preferably set to a minimum value in consideration of these points.

  Further, a gate mark is formed on the molded fixing member 30 at a position corresponding to the gate of the mold. For this reason, depending on the position where the gate mark is formed, the thickness of the fixing member 30 may increase, or the gate mark may interfere with other components. Therefore, in order to improve the impact resistance of the mobile terminal device 1 and to realize a reduction in size and thickness, it is necessary to set the position of the gate mark that is formed when the fixing member 30 is formed to an appropriate position. In particular, in the mobile terminal device 1 according to the present embodiment, the fixing member 30 is a thin member because it is disposed between the side wall 11 of the housing 10 and the display panel 80. Therefore, the fixing member 30 cannot be made thin unless the gate trace 52 is arranged at an appropriate position.

  Therefore, in the mobile terminal device 1 according to the present embodiment, the gate mark 52 is provided on the hook 41 having a thickness among the fixing members 30. That is, since the hook 41 is a fitting member when the fixing member 30 is attached to the housing 10, a predetermined strength is required. Therefore, since the hook 41 has a certain thickness, it is preferable as a place where the gate mark 52 is formed. That is, when the fixing member 30 is manufactured using the injection molding method, the resin is injected into the mold from the gate. However, considering the fluidity of the resin when the resin is injected, the portion where the gate is provided has a thickness. It is preferable to provide in the vicinity of a certain member (in this case, the hook 41). Further, as shown in FIG. 1, the fixing member 30 includes hooks 41 to 48 substantially equally on each side constituting the fixing member 30. For this reason, by arranging the gates at positions corresponding to the hooks 41 to 48, the resin can be uniformly injected into the mold of the fixing member 30.

  Further, the gap α described above becomes an unnecessary space after the fixing member 30 is attached to the housing 10 (see FIGS. 6C and 6D). However, considering the downsizing and thinning of the portable terminal device, it is desirable to effectively utilize the gap α. Therefore, the clearance α can be effectively utilized by providing the hook 41 with the gate mark 52 formed when the fixing member 30 is injection-molded.

  For example, the gate mark 52 can be arranged at the base 51 of the hook 41. As shown in FIG. 7, the base portion 51 of the hook 41 has a smaller amount of bending when the fixing member 30 is attached to the housing 10 than the tip portion 59 of the hook. For this reason, by arranging the gate trace 52 at the base 51 of the hook 41, the gap α can be reduced. At this time, if the protrusion amount γ of the gate trace 52 is smaller than the difference between the deflection amount D of the tip portion 59 of the hook 41 and the deflection amount of the base portion 51 of the hook 41, the influence of the gate trace 52 on the gap α is ignored. can do.

  Further, when the gate mark 52 is disposed at the base portion 51 of the hook 41, it is not necessary to dispose the gate at the tip end portion 59 of the hook 41, so that the gate is prevented from interfering with the arrangement of the extrusion pin of the mold. can do. In particular, it is advantageous for forming the fixing member 30 that is thin relative to the size of the entire product such as the portable terminal device according to the present embodiment. Specifically, the thin fixing member 30 is difficult to be uniformly extracted from the mold at the time of molding, so that it is easily deformed, and it is technically difficult to obtain a dimension and shape as designed. Therefore, the dimensional accuracy, shape quality, and yield of the fixing member 30 can be improved by increasing the degree of freedom of arrangement of the push pin.

  Further, the distance δ from the surface 62 of the fixing member 30 (the pasting surface of the display panel 80) to the surface 63 of the gate mark 52 is less than 0 so that the gate mark 52 is not deformed and interferes with the display panel 80 or the adhesive member 70. Is preferably set to be large.

  On the other hand, for example, when the gate trace 52 is appropriately processed, the deformation of the gate trace 52 is parallel to the sticking surface of the display panel 80 or away from the display panel 80 (that is, the gate trace 52 is moved to the display panel 80 side). If it does not protrude, δ may be set to zero. In particular, when δ is 0, that is, when the surface 63 of the gate trace 52 and the surface 62 of the fixing member 30 are the same surface, there is an advantage that the area to which the display panel 80 is attached becomes large. For example, when the shape of the gate trace 52 is a rectangular parallelepiped, the area where the display panel 80 is pasted is increased by the width of the gate trace 52 × the protrusion amount γ.

  In the portable terminal device 1 according to the present embodiment described above, the case where the display panel 80 is attached to the frame member 21 (frame 20) has been described. However, the display panel 80 is attached to the frame member 21. It is good also as a structure which is not attached.

  According to the invention according to the present embodiment described above, it is possible to provide a mobile terminal device that can realize improvement in impact resistance and reduction in size and thickness.

<Embodiment 2>
Next, a second embodiment of the present invention will be described. In the portable terminal device according to the second embodiment, the point that the hook included in the fixing member is inclined in a state where it is not subjected to stress from the outside (that is, the state where it is not attached to the housing) will be described in the first embodiment. Different from the mobile terminal device. Since other than this is the same as the portable terminal device described in the first embodiment, the same components are denoted by the same reference numerals, and redundant description is omitted.

  8A to 8D are cross-sectional views for explaining a process of assembling the mobile terminal device according to the present embodiment. As shown in FIG. 8A, before the fixing member 130 is attached to the housing 10, the hook 141 of the fixing member 130 is not subjected to stress from the outside. At this time, the direction in which the hook 141 extends from the base portion 51 is inclined by θ1 with respect to the vertical direction (downward direction in the drawing). In other words, the hook 141 is inclined toward the center of the housing 10 (that is, in a direction away from the outer periphery of the fixing member 130) with respect to a direction perpendicular to the main surface of the display panel 80 (see FIG. 8D).

  As shown in FIG. 8B, when the fixing member 130 is brought closer to the side wall 11 of the housing 10, the hook 141 comes into contact with the protruding portion 16 of the side wall 11 and the hook 141 is on the frame member 21 side (in the direction away from the side wall 11). Bend. That is, the hook 141 bends toward the frame member 21 by the protrusion 58 of the hook 141 coming into contact with the protruding portion 16 of the side wall 11. At this time, the direction in which the hook 141 extends from the base portion 51 is θ2 with respect to the vertical direction (downward direction in the drawing). Here, θ2 is a value larger than θ1.

  As shown in FIG. 8C, when the fixing member 130 is further moved closer to the side wall 11 of the housing 10, the hook 141 is shallowly fitted to the protruding portion 16 of the side wall 11. At this time, the direction in which the hook 141 extends from the base portion 51 is θ3 with respect to the vertical direction (downward direction in the drawing). Here, θ3 is θ1 ≦ θ3 <θ2. That is, in the case shown in FIG. 8C, since the hook 141 is shallowly fitted to the protruding portion 16 of the side wall 11, the angle θ3 of the hook 141 is smaller than the angle θ2 of the hook 141 shown in FIG. 8B. Further, the angle θ3 of the hook 141 is the same as or larger than the angle θ1 of the hook 141 shown in FIG. 8A.

  At this time, since the protrusion 58 of the hook 141 and the protrusion 16 of the side wall 11 are not completely fitted, the fixing member 130 is temporarily fixed to the housing 10. Further, the top surface 17 of the side wall 11 and the surface 61 of the fixing member 130 are in contact with each other.

  Then, as shown in FIG. 8D, the display panel 80 is fixed to the surface 62 of the fixing member 130 and the surface 27 of the frame member 21 using the adhesive member 70. By fixing the display panel 80 to the fixing member 130 and the frame member 21 in this way, a downward force (in a direction away from the display panel 80) acts on the base portion 51 of the fixing member 130, thereby causing the case of FIG. 8C. The hook 141 fits deeper into the protruding portion 16 of the side wall 11. That is, the protrusion 58 of the hook 141 and the protrusion 16 of the side wall 11 are engaged with each other, and the fixing member 130 is fixed to the housing 10.

  Further, by fixing the display panel 80 to the fixing member 130 and the frame member 21, the hook 141 can be made difficult to bend. That is, by fixing the display panel 80 to the fixing member 130 and the frame member 21, a downward force (direction away from the display panel 80) acts on the base portion 51 of the fixing member 130, whereby the hook 141 is attached to the frame member. It can suppress that it bends to 21 side (center side of the housing | casing 10). Since the frame member 21 is firmly fixed to the bottom surface of the casing 10 using screws or the like, the fixing member 130 is fixed to the casing 10 by fixing the display panel 80 across the fixing member 130 and the frame member 21. Can be firmly fixed.

  FIG. 9 is a perspective view showing another aspect of the fixing member provided in the mobile terminal device according to the present embodiment. In the fixing member 130 ′ shown in FIG. 9, notches 171a and 171b are provided on both sides in the longitudinal direction of the base portion of the hook 141 ′. By providing the notches 171a and 171b as described above, the hook 141 ′ can be easily bent.

  In the mobile terminal device according to the present embodiment, the fixing member 130 can be easily attached to the housing 10 by configuring the hook 141 of the fixing member 130 to be inclined in advance as shown in FIG. 8A. That is, by tilting the hook 141 in advance by θ1 with respect to the vertical direction, the force required when the hook 141 is fitted to the protruding portion 16 of the housing 10 can be reduced (see FIGS. 8B and 8C). Further, by attaching the display panel 80 to the frame member 27 and the fixing member 130 after attaching the fixing member 130 to the housing 10, the fixing member 130 can be firmly fixed to the housing 10. Therefore, as compared with the portable terminal device according to the first embodiment, since the fixing member 130 does not need to be strongly pressed into the housing 10 in order to attach the fixing member 130 to the housing 10, the assembly is facilitated.

  Further, by inclining the hook 141 in advance, the fixing member 130 can be easily detached from the housing 10 at the time of disassembly. In other words, due to the elasticity of the fixing member 130, when the display panel 80 is removed, the amount of hook 141 on the protruding portion 16 is reduced and the state shown in FIG. Therefore, when fixing member 130 is removed, it can control that fixing member 130 is damaged, and the rate of fixing member 130 which can be reused can be increased.

  In the present embodiment, the case where the gate trace 52 is provided on the fixing member 130 has been described. However, the invention according to the present embodiment can also be applied to a fixing member that does not include the gate trace 52.

<Embodiment 3>
Next, a third embodiment of the present invention will be described. The portable terminal device according to the third embodiment is different from the portable terminal device described in the second embodiment in that an elastic member that is elastically deformed is provided between the side wall of the housing and the fixing member. Since other than this is the same as the portable terminal device described in the first and second embodiments, the same components are denoted by the same reference numerals, and redundant description is omitted.

  10A to 10D are cross-sectional views for explaining a process of assembling the mobile terminal device according to the present embodiment. As shown in FIG. 10A, before the fixing member 130 is attached to the housing 110, the hook 141 of the fixing member 130 is not subjected to stress from the outside. At this time, the direction in which the hook 141 extends from the base portion 51 is inclined by θ1 with respect to the vertical direction (downward direction in the drawing). An elastic member 118 that is elastically deformed is provided on the top surface of the side wall 111 of the housing 110. The elastic member 118 is disposed on the inner peripheral side of the top surface of the side wall 111. For example, a foam material or a rubber material can be used for the elastic member 118.

  As shown in FIG. 10B, when the fixing member 130 is moved closer to the side wall 111 of the housing 110 in order to attach the fixing member 130 to the housing 110, the hook 141 comes into contact with the protruding portion 16 of the side wall 111. Bends toward the frame member 21 (in a direction away from the side wall 111). That is, the hook 141 bends toward the frame member 21 by the protrusion 58 of the hook 141 coming into contact with the protrusion 16 of the side wall 111.

  As shown in FIG. 10C, when the fixing member 130 is further moved closer to the side wall 111 of the housing 110, the hook 141 is shallowly fitted to the protruding portion 16 of the side wall 111. At this time, since the protruding portion 58 of the hook 141 and the protruding portion 16 of the side wall 111 are not completely fitted, the fixing member 130 is temporarily fixed to the housing 110. Further, the outer peripheral portion 117 of the top surface of the side wall 111 and the surface 61 of the fixing member 130 are in contact with each other. The elastic member 118 is crushed and elastically deformed by the fixing member 130. In other words, the surface 61 of the fixing member 130 contacts the side wall 111 at the outer peripheral portion 117 of the top surface of the side wall 111, and contacts the elastic member 118 at the inner peripheral portion of the top surface of the side wall 111.

  10C shows the case where the elastic member 118 and the outer peripheral portion 117 of the top surface of the side wall 111 are in contact with the surface 61 of the fixing member 130. FIG. However, since the fixing member 130 is temporarily fixed in FIG. 10C, only the elastic member 118 and the surface 61 of the fixing member 130 are in contact with each other, and the outer peripheral portion 117 of the top surface of the side wall 111 and the surface 61 of the fixing member 130 are It may not be in contact.

  Then, as shown in FIG. 10D, the display panel 80 is fixed to the surface 62 of the fixing member 130 and the surface 27 of the frame member 21 using the adhesive member 70. By fixing the display panel 80 to the fixing member 130 and the frame member 21 in this way, a downward force (direction away from the display panel 80) acts on the base portion 51 of the fixing member 130, and as a result, in the case of FIG. 10C. The hook 141 fits into the protrusion 16 of the side wall 111 deeper than that. That is, the protrusion 58 of the hook 141 and the protrusion 16 of the side wall 111 mesh with each other, and the fixing member 130 is fixed to the housing 110. In this case, the elastic member 118 is further crushed and elastically deformed by the fixing member 130 than in the case shown in FIG. 10C.

  In the mobile terminal device according to the present embodiment, since the elastic member 118 that is elastically deformed is provided between the side wall 111 and the fixing member 130 provided in the housing 110, the waterproof and dustproof properties of the mobile terminal device are improved. be able to.

  FIG. 11: is sectional drawing which shows the other aspect of the hook with which the portable terminal device concerning this Embodiment is provided. As shown in FIG. 11, the hook 141 ″ included in the fixing member 130 ″ includes a guide surface 167 (third surface) and an adjustment surface 168 (fourth surface). The guide surface 167 and the adjustment surface 168 are smoothly connected. The adjustment surface 168 is formed closer to the root portion 51 than the guide surface 167. The guide surface 167 guides the hook 141 ″ when the hook 141 ″ is engaged with the protruding portion 16, and the adjustment surface 168 adjusts the amount of elastic deformation of the elastic member 118.

  That is, the elastic deformation amount (compression amount) of the elastic member 118 can be adjusted by adjusting the position where the adjustment surface 168 is formed. Specifically, as the adjustment surface 168 is formed on the base 51 side (the upper side in the drawing), the force that presses the fixing member 130 ″ against the side wall 111 of the housing 110 increases. To increase. Conversely, as the adjustment surface 168 is formed in a direction away from the base portion 51 (lower side of the drawing), the force pressing the fixing member 130 ″ against the side wall 111 of the housing 110 decreases, and the elastic deformation amount of the elastic member 118 decreases. Decrease. At this time, by arranging the hooks 141 ″ uniformly over the entire circumference of the side wall, waterproofness and dustproofness are improved, and durability of the mobile terminal device is also improved.

  The guide surface 167 temporarily fixes the hook 141 ″ to the side wall 111 as shown in FIG. 10C, or guides when the hook 141 ″ is fitted to the protruding portion 16 when the display panel 80 is attached. By providing the guide surface 167 in this manner, the adjustment surface 168 and the protruding portion 16 can be easily fitted even when the adjustment surface 168 is formed on the base portion 51 side.

  Note that the elastic member 118 may be made of a component different from the casing 110 and the fixing member 130 and bonded to the casing 110 or the fixing member 130. Alternatively, the housing 110 and the fixing member 130 may be manufactured as an integral part using a technique such as two-color molding or ultrasonic welding. Further, the elastic member 118 may be provided on the entire circumference of the side wall 111 of the housing 110 or may be provided on a part thereof. For example, when the elastic member 118 is provided in part, the waterproofness / dustproofness can be locally improved.

  Further, the invention according to the present embodiment can be similarly applied to the case where the hook of the fixing member is not inclined as in the first embodiment.

  As described above, the provision of the elastic member 118 can improve waterproofness and dustproofness while realizing miniaturization and thinning of the mobile terminal device.

  Although the present invention has been described with reference to the above embodiment, the present invention is not limited only to the configuration of the above embodiment, and within the scope of the invention of the claims of the present application. It goes without saying that various modifications, corrections, and combinations that can be made by those skilled in the art are included.

DESCRIPTION OF SYMBOLS 1 Mobile terminal device 10 Housing | casing 11 Side wall 15 Recess 16 Protrusion 17 Top surface 20 Frame 21, 22 Frame members 23, 24, 25 Beam members 30, 130 Fixing members 41-48, 141 Hook 51 Base 52 Gate trace 55 Protrusion Portion 56 Surface 58 Projection 59 Front end 61, 62, 63 Surface 70 Adhesive member 80 Display panel 118 Elastic member 167 Guide surface 168 Adjustment surface

Claims (18)

A housing,
A display panel covering the housing;
A fixing member provided between a side wall provided around the housing and the display panel,
The fixing member has a hook that engages with a protrusion provided on the side wall of the housing, and a gate mark is formed on the hook.
Mobile terminal device. The fixing member is
A first surface that is a surface on the housing side;
A second surface which is a surface on the display panel side;
A base portion of the hook provided on the inner peripheral side of the fixing member,
The mobile terminal device according to claim 1.   The portable terminal device according to claim 2, wherein the gate trace is formed at a base portion of the hook so as to protrude into the housing.   The mobile terminal device according to claim 3, wherein a surface of the gate mark on the display panel side is disposed closer to the first surface than the second surface.   The mobile terminal device according to claim 3, wherein a surface of the gate mark on the display panel side is arranged to be flush with the second surface.   The mobile terminal device according to claim 2, wherein the display panel is attached to the second surface of the fixing member using an adhesive member.   The mobile terminal device according to any one of claims 1 to 6, wherein the hook is inclined in a direction away from an outer periphery of the fixing member in a state where the fixing member is not attached to a side wall of the housing.   The mobile phone according to claim 7, wherein after attaching the fixing member to the side wall of the housing, the hook is fitted to the protruding portion by attaching the display panel to the second surface of the fixing member. Terminal device.   The portable terminal device according to claim 7 or 8, wherein notches are formed on both longitudinal sides of the base of the hook. A frame member disposed inside the housing and disposed at a position corresponding to the side wall;
A predetermined gap is provided between the side surface of the frame member on the side wall side of the housing and the fixing member.
The portable terminal device as described in any one of Claims 1 thru | or 9.   The portable terminal device according to claim 10, wherein the predetermined gap is a gap in which a tip end portion of the hook does not interfere with the side surface of the frame member when the hook is fitted to the protruding portion.   The portable terminal according to claim 10, wherein the predetermined gap is a gap in which the gate mark provided on the hook does not interfere with the side surface of the frame member when the hook is fitted to the protrusion. apparatus.   The portable terminal according to claim 10, wherein the display panel is attached to the second surface of the fixing member and the surface of the frame member on the display panel side using an adhesive member. apparatus. An elastic member is provided between the side wall of the housing and the fixing member,
The elastic member is elastically deformed by contacting the first surface when the hook is fitted to the protrusion.
The portable terminal device as described in any one of Claims 1 thru | or 13.   The portable terminal device according to claim 14, wherein the first surface is in contact with the side wall at an outer peripheral portion of the top surface of the side wall, and is in contact with the elastic member at an inner peripheral portion of the top surface of the side wall. . The hook includes a third surface and a fourth surface;
The third surface guides the hook when the hook is engaged with the protrusion,
The fourth surface adjusts the amount of elastic deformation of the elastic member;
The portable terminal device according to claim 14 or 15.   The portable terminal device according to claim 1, wherein a protrusion that surrounds the outer periphery of the display panel is formed on an outer peripheral side of the fixing member. 18. The mobile terminal device according to claim 1, wherein rigidity of the fixing member is lower than rigidity of the housing and the display panel.

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