Waterproof case for electronic devices

Abstract

To provide a waterproof case for an electronic apparatus that achieves its compactness by preventing extension of a lateral width, and disposes pivotally supporting parts of a base end part of a stand on both left and right sides of a case body to realize a stable stand function.SOLUTION: A frame body 3 including a transparent sheet 5 is overlapped on a front face side of a case body 2 to define a storage chamber S, and an electronic apparatus D is stored in the storage chamber. The electronic apparatus D is held by the tensile force of the transparent sheet 5, and the storage chamber S is held fluid tight by a sealant 5b integrally formed around the transparent sheet 5. A pair of base end parts 6a of a stand 6 are connected to the left and right sides of a rear face of the case body 2 in a pivotally supported and foldable manner, and the left and right pivotally supported parts of the stand 6 are disposed to overlap portions corresponding to the left side and right side of the sealant 5b on the rear face side.SELECTED DRAWING: Figure 8

Description

【Technical Field】 【0001】 The present invention relates to a waterproof case for an electronic device having a screen. 【Background Art】 【0002】 Some electronic devices such as smartphones and tablets do not have a waterproof function, and a waterproof case is used when such electronic devices are used in a bathroom, at sea, etc. For example, the waterproof case described in Patent Document 1 overlaps a frame body on a case body to define an accommodation chamber inside, stretches a transparent sheet having elasticity on the frame body to form a display window, and interposes a sealing material around the case body and the frame body to keep the accommodation chamber liquid-tightly. When an electronic device is disposed in the case body and the frame body is overlapped, the transparent sheet adheres closely to the electronic device, and the electronic device is sandwiched and held between the bottom wall of the case body by the tension, and the screen of the electronic device can be visually recognized through the transparent sheet. 【0003】 In order to keep the waterproof case in a posture where the screen is easily visible, a foldable stand is provided on the back surface of the case body. Specifically, a guide portion having a groove extending vertically is provided at the left and right center of the back surface of the case body, and a guide pin at the base end portion of the stand is fitted into the groove so as to be slidable vertically. One end of a link is pivotally supported at a position below the guide portion on the back surface of the case body, and the other end of the link is pivotally supported at the center portion of the stand. When the guide pin is slid upward in the groove of the guide portion, the stand abuts against the back surface of the case body and the waterproof case can be carried. Further, when the guide pin is slid downward in the groove, the tip portion of the stand is separated from the back surface of the case body, and the lower portion of the case body and the tip portion of the stand are respectively grounded on the floor surface or the like, and the waterproof case can be kept in a standing posture. 【Prior Art Documents】 【Patent Documents】 【0004】 【Patent Document 1】 Japanese Patent Application Laid-Open No. 2015-119112 【Summary of the Invention】 [Problems that the invention aims to solve] 【0005】 However, the waterproof case described in Patent Document 1 has stands in the left and right center of the case body, so the tips of the stands only touch the floor or other surface at one point in the left and right center, resulting in poor lateral stability. Therefore, measures such as providing pivot points for the base ends of the stands on both the left and right sides of the case body, and extending the lower ends of the stands that touch the floor or other surface to the left and right to improve stability can be considered. 【0006】 However, sealing material is provided around the waterproof case to maintain liquid-tightness in the storage chamber. For example, a sealing groove is recessed around the frame, and the perimeter of the case body abuts against the sealing material fitted into this groove to maintain liquid-tightness. Therefore, if the above measures are implemented, it becomes necessary to position the left and right pivot points of the stand on the outer perimeter of the waterproof case, resulting in a new problem: an increase in the width of the waterproof case. 【0007】 This invention was made to solve these problems, and its objective is to provide a waterproof case for electronic devices that achieves compactness by preventing an increase in width, and that provides a stable stand function by arranging the pivot points at the base of the stand on both the left and right sides of the case body. [Means for solving the problem] 【0008】 To achieve the above objective, the waterproof case for electronic equipment of the present invention comprises a case body with a lid having a display window superimposed on the front surface to define a housing chamber in which electronic equipment is housed, an annular sealing material interposed around the case body and lid to maintain a liquid-tight seal on the housing chamber, and a pair of base ends of a stand pivotally supported on one side and the other side of the back surface of the case body, thereby foldably connecting the stand to the case body, wherein the pivot points on one side and the other side of the stand are arranged to overlap on the back surface with the parts corresponding to one side and the other side of the sealing material, respectively. The lid is further provided with a pair of buckles, each having a base end that can be opened and closed, and which, when closed, have their tips hooked onto the case body, respectively, to connect the lid to the case body, while when opened, the hooking of the tips onto the case body, respectively, is released to separate the lid. The base ends of the buckles on one side and the other side are arranged adjacent to the outer circumference of the annular sealing material and the pivot point of the stand, respectively, and the tips of the buckles on one side and the other side are arranged adjacent to the pivot point of the stand on the back side when in the closed position. It is characterized by being present. 【0009】 Therefore, since the stand's pivot points are provided on one side and the other side of the case body, a stable stand function can be achieved. In addition, since the stand's pivot points overlap on the back side with the parts corresponding to one side and the other side of the sealing material, the external dimensions of the waterproof case in the direction along one side and the other side are reduced. 【0011】 Also The case body and lid are connected and separated by opening and closing the buckle, allowing electronic devices to be inserted into and removed from the internal compartment. Furthermore, the base ends of the buckles are positioned adjacent to each other without creating any wasted space on the outer circumference of the sealing material and the stand's pivot point, thus suppressing the expansion of the waterproof case's external dimensions in the left-right direction due to the addition of the buckle. Additionally, the tips of the buckles are positioned adjacent to each other without creating any wasted space on the back side of the stand's pivot point, thus suppressing the expansion of the waterproof case's external dimensions in the front-back direction. 【0012】 In other embodiments, pivot pins may be provided protruding outwards from the base ends of one and the other sides of the stand, and shaft recesses may be formed on one and the other sides of the back surface of the case body, into which the pivot pins can be rotatably fitted. Each pivot pin may be prevented from detaching from the shaft recess by the tips of a pair of buckles in a closed position, thereby forming the pivot support points on one and the other sides of the stand. 【0013】 Therefore, since the closed buckle is used to prevent the rotation pin from detaching from the shaft recess, a structure to prevent detachment becomes unnecessary, and the number of parts is reduced. 【0014】 In other embodiments, auxiliary pins may be provided protruding inward from the base ends of one and the other sides of the stand, and axial holes may be formed on one and the other sides of the back surface of the case body, into which the auxiliary pins can be rotatably fitted. 【0015】 Therefore, when the buckle is opened to separate the lid from the case body, the left and right pivot pins can be disengaged from the shaft recesses. However, the auxiliary pins and shaft holes maintain the stand's connection to the case body, making it easy to insert and remove electronic devices from the storage compartment. 【0016】 In other embodiments, the side walls forming the outer surfaces of one and the other sides of the case body are each disposed between the shaft recess and the base end of the buckle, and angle adjustment chambers are defined between the side walls and the shaft recess on each side, and angle adjustment plates are integrally formed on the rotating pins on one and the other sides of the stand and disposed within the angle adjustment chambers, and engaging portions are integrally formed on the side walls and the angle adjustment plates on each side, allowing them to engage with each other and arbitrarily hold the stand at multiple angles. 【0017】 Therefore, in the standing position of the waterproof case with the bottom of the case body and the tip of the stand in contact with the floor or other surface, the inclination angle can be arbitrarily changed according to the angle of the stand. Furthermore, due to the simple structure in which the engaging part of the side wall of the case body and the engaging part of the angle adjustment plate of the stand are engaged with each other, manufacturing costs can be reduced. In addition, since the shaft recess, the rotation pin of the stand, the angle adjustment plate, the side wall, and the base end of the buckle are arranged in order from the inner circumference to the outer circumference of the waterproof case without creating any wasted space, it is possible to suppress the expansion of the external dimensions of the waterproof case in the left-right direction. 【0018】 In other embodiments, the case body may have a magnet attached to its back surface, and a hooking recess may be formed at any point around it, allowing a fingertip to be gripped. Therefore, the waterproof case can be attached to the bathroom wall or other surface using magnets. When removing the waterproof case, it can be easily peeled off the wall or other surface by hooking your fingertips into the retaining recess. 【0019】 In other embodiments, the display window is a transparent sheet stretched over a frame-shaped lid, which is elastic and, by tension, sandwiches the electronic device between itself and the bottom wall of the case body; a sealing material is integrally formed around the transparent sheet; a sealing groove is formed on the back side of the lid into which the sealing material is fitted; a sealing wall is formed on the front side of the case body to press against the sealing material in the sealing groove; and the sealing wall may be arranged adjacent to the axial recess on the surface side into which the pivot pin is fitted. 【0020】 Therefore, a storage chamber is defined between the case body and the transparent sheet, and the electronic device is sandwiched and held between the case body and the transparent sheet, while the sealing wall presses against the sealing material in the sealing groove, maintaining a liquid-tight seal inside the storage chamber. Furthermore, since the sealing walls that perform these functions are arranged adjacent to each other on the surface side of the shaft recess without creating any wasted space, the expansion of the external dimensions of the waterproof case in the front-to-back direction is suppressed. 【0021】 In other embodiments, the stand may consist of arms extending from the base ends of one and the other sides and connected to each other, with arm storage compartments recessed on one and the other sides of the back surface of the case body for storing each arm, and the arm storage compartments on the one and the other sides may be arranged adjacent to each other on the inner circumference side of the tip of the buckle without creating any wasted space. 【0022】 Therefore, when the stand is not in use, each arm of the stand is stored in the arm storage compartment of the case body, thus suppressing the expansion of the waterproof case's external dimensions in the front-to-back direction. Furthermore, since the arm storage compartments that perform this function are arranged adjacent to each other on the inner circumference side of the buckle tip, the expansion of the waterproof case's external dimensions in the left-to-right direction is suppressed. [Effects of the Invention] 【0023】 According to the waterproof case of the electronic device of the present invention, while preventing the expansion of the left and right widths and achieving compactness, the shaft support portions of the base ends of the stands are arranged on both the left and right sides of the case body, and a stable stand function can be realized. 【Brief Description of the Drawings】 【0024】 [Figure 1] It is a perspective view of the waterproof case of the electronic device of the embodiment as seen from the front side. [Figure 2] It is a perspective view of the waterproof case as seen from the back side. [Figure 3] It is an exploded perspective view of the waterproof case as seen from the front side. [Figure 4] It is a perspective view showing the procedure of housing the electronic device in the waterproof case. [Figure 5] It is a sectional view taken along the line V-V of FIG. 4 showing the waterproof case with the electronic device housed therein. [Figure 6] It is a sectional perspective view taken along the line VI-VI of FIG. 2 showing the connection portion of the case body with the frame. [Figure 7] It is a sectional perspective view taken along the line VII-VII of FIG. 2 showing the periphery of the right buckle. [Figure 8] It is a sectional perspective view taken along the line VIII-VIII of FIG. 2 showing the shaft support portion on the right side of the stand. [Figure 9] It is a sectional perspective view showing the state where each member in FIG. 8 is disassembled. [Figure 10] It is an exploded sectional perspective view showing the details of part A in FIG. 2. [Figure 11] It is a sectional view taken along the line X-X of FIG. 8 showing the shaft support portion on the right side of the stand. [Figure 12] It is a sectional view taken along the line XI-XI of FIG. 8 showing the angle adjustment plate on the right side of the stand. [Figure 13] It is a sectional view taken along the line XIII-XIII of FIG. 2 showing the case of peeling off the waterproof case attached to the wall surface using the latching recess. 【Embodiments for Carrying Out the Invention】 【0025】 The following describes one embodiment of a waterproof case for an electronic device that embodies the present invention. Figure 1 is a perspective view of the waterproof case of the electronic device of this embodiment, viewed from the front side; Figure 2 is a perspective view of the waterproof case, viewed from the back side; Figure 3 is an exploded perspective view of the waterproof case, viewed from the front side; Figure 4 is a perspective view showing the procedure for housing the electronic device in the waterproof case; and Figure 5 is a cross-sectional view of the waterproof case in Figure 4, taken along line VV, showing the waterproof case with the electronic device housed inside. 【0026】 The waterproof case 1 houses an electronic device D, such as a smartphone or tablet, protecting it from water and other elements, and also provides a display window that allows the device's screen to be viewed. In the following description, the side of the waterproof case 1 with the display window is referred to as the front, and the opposite side as the back. Left, right, up, and down are expressed based on a view from the front of the waterproof case 1 when it is propped up by the stand 6 described later. The inner and outer directions of the waterproof case 1 when viewed from the front may also be referred to as the inner circumference and outer circumference. In this embodiment, the left side of the waterproof case 1 corresponds to "side one" of the present invention, and the right side corresponds to "other side" of the present invention. 【0027】 《Overall Structure》 First, let me explain the overall configuration of waterproof case 1. The waterproof case 1 consists of a case body 2, a frame 3 that is placed on top of the case body 2 to define a housing chamber S in which the electronic device D is housed, buckles 4l, 4r, 4u that connect the frame 3 to the case body 2, a transparent sheet 5 that functions as a display window, and a stand 6 provided on the back of the case body 2. For example, the frame 3, buckles 4l, 4r, 4u and stand 6 are injection molded from thermoplastic resin materials such as polyethylene terephthalate (PET) or polypropylene (PP), and the transparent sheet 5 is injection molded from a stretchable synthetic resin material such as silicone rubber. However, the materials and manufacturing methods are not limited to these and can be changed as desired. 【0028】 The case body 2 is a shallow, rectangular box shape with an opening on the front side, and a rectangular frame 3 is superimposed on its front side. The lower side of the frame 3 is connected to the lower side of the case body 2 via a support shaft 8a, which will be described later, so that it can be opened and closed. A left buckle 4l and a right buckle 4r are connected to the left and right sides of the frame 3 so that they can be opened and closed, and similarly, an upper buckle 4u is connected to the upper side of the frame 3 so that it can be opened and closed. A transparent sheet 5 is attached to the frame 3 so as to cover it, and the frame 3 and the transparent sheet 5 correspond to the "lid" of the present invention. 【0029】 As shown in Figure 4, the frame 3 is opened to open the inside of the case body 2, and the electronic device D is placed inside. When the frame 3 is closed and connected to the case body 2 by the buckles 4l, 4r, and 4u, as shown in Figure 5, the transparent sheet 5 is stretched out while adhering tightly to the screen of the electronic device D, and the tension of the sheet sandwiches the electronic device D between the bottom wall 2a of the case body 2 and the contact ribs 20 which are erected from the bottom wall 2a and will be described later. This holds the electronic device D in a predetermined position in the housing chamber S, and its screen becomes visible through the transparent sheet 5. 【0030】 On the other hand, a pair of base ends 6a of the stand 6 are pivotally supported on the left and right sides of the back surface of the case body 2, thereby allowing the stand 6 to be foldably connected to the case body 2. When the stand 6 is opened, its tip 6c separates from the back surface of the case body 2, allowing the bottom of the case body 2 and the tip 6c of the stand 6 to touch the floor or other surface, thus keeping the waterproof case 1 in an upright position. 【0031】 Next, we will explain the details of each part of the waterproof case 1 in order. 《Connection structure of frame 3 to case body 2》 Figure 6 is a cross-sectional perspective view taken along line VI-VI in Figure 2, showing the connection point between the case body 2 and the frame 3. As shown in Figures 2 and 6, four notches 8 are formed on the lower side of the case body 2 at intervals from left to right, and a support shaft 8a is provided protruding from the side of each notch 8. Four projections 9 are formed on the lower side of the frame 3 at intervals from left to right, and an axle hole 9a is formed in each projection 9. Each projection 9 of the frame 3 is positioned within the notches 8, and a support shaft 8a is fitted into each axle hole 9a, thereby connecting the frame 3 to the case body 2 so that it can be opened and closed. When the frame 3 is opened and closed around the support shaft 8a, the interior of the case body 2 is opened outward (as shown in Figure 4) or concealed from the outside (as shown in Figure 1). 【0032】 《Connection structure of buckles 4l, 4r, and 4u to frame 3》 Figure 7 is a perspective view of the area around the right buckle 4r, taken along line VII-VII in Figure 2. The following description of the right buckle 4r will be based on this figure, but the left buckle 4l and the upper buckle 4u have the same structure. 【0033】 As shown in Figures 3 and 7, four notches 10 are formed on the right side of the frame 3 at vertical intervals, and each notch 10 has a shaft hole 10a on its side. The right buckle 4r has an L-shaped cross-section consisting of a base end 11 and a tip end 12, with an engaging projection 12a extending vertically from the tip end 12. Four projections 13 are formed on the base end 11 of the right buckle 4r at vertical intervals, and each projection 13 has a support shaft 13a protruding from it. Each projection 13 of the right buckle 4r is positioned within the notches 10 of the frame 3, and each support shaft 13a is fitted into the shaft hole 10a, thereby connecting the right buckle 4r to the right side of the frame 3 so that it can be opened and closed. 【0034】 As shown by the solid line in Figure 7, when the right buckle 4r closes around the pivot shaft 13a, the engaging projection 12a fits into the engaging groove 14 formed in the case body 2, and its tip 12 hooks onto the right side of the case body 2. Also, as shown by the dashed line in Figure 7, when the right buckle 4r opens around the pivot shaft 13a, the engaging projection 12a disengages from the engaging groove 14, releasing the hook of the tip 12 onto the right side of the case body 2. Therefore, when the tips 13 of all buckles 4l, 4r, and 4u are hooked onto the case body 2, the frame 3 is connected to the case body 2, while when the hooks 13 of all buckles 4l, 4r, and 4u are released, the frame 3 can be separated from the case body 2. 【0035】 The left buckle 4l and the right buckle 4r correspond to the "buckles" of the present invention. The length and engagement depth of the engagement groove 14 and engagement projection 12a are adjusted so that each buckle 4l, 4r, and 4u can be engaged and disengaged with appropriate operating force. 【0036】 《Mounting structure of the transparent sheet 5 to the frame 3》 Figure 8 is a perspective view of the right-side pivot point of stand 6, taken from line VIII-VIII in Figure 2, and Figure 9 is a cross-sectional perspective view showing the disassembled components of Figure 8. As shown in Figures 3, 8, and 9, the transparent sheet 5 consists of a transparent surface 5a that forms a rectangular thin film corresponding to the perimeter of the frame 3, and a sealing material 5b integrally formed around the entire perimeter of the transparent surface 5a. The sealing material 5b has a rectangular cross-section and protrudes from the transparent surface 5a toward the surface. On the back side of the frame 3, a sealing groove 15 is formed around its entire perimeter, and the sealing material 5b of the transparent sheet 5 is fitted into the sealing groove 15. In this way, the transparent sheet 5 is assembled to the frame 3, and the inside of the frame 3 is sealed by its transparent surface 5a. The transparent surface 5a corresponds to the "display window" of the present invention, and a fine texture is formed on its back surface to prevent air bubbles when it is in close contact with the screen of the electronic device D. 【0037】 On the surface side of the case body 2, a rectangular annular sealing wall 16 is formed along its periphery, and on the inner side of the sealing wall 16, a rectangular annular contact wall 17 is formed along its periphery. When the frame 3 is connected to the case body 2 by buckles 4l, 4r, and 4u, a storage chamber S is defined between the case body 2 and the transparent surface 5a of the transparent sheet 5, and the contact wall 17 of the case body 2 abuts against the back surface of the frame 3, and the sealing wall 16 presses against the sealing material 5b in the sealing groove 15 of the frame 3. As a result, the storage chamber S is kept liquid-tight, and the intrusion of water or other liquids into the interior is prevented. 【0038】 Internal structure of case body 2 As shown in Figures 3, 4, and 7, a rectangular, annular housing area indicator rib 19 is formed on the inner circumference of the sealing wall 16 and contact wall 17 of the case body 2, along the periphery of the case body 2. The bottom wall 2a of the case body 2 is formed on the inner circumference of this housing area indicator rib 19, allowing for the placement of electronic equipment D. Multiple contact ribs 20 are formed on the bottom wall 2a, extending left and right and up and down. In addition, multiple regulating ribs 21 are formed on the outer circumference of the housing area indicator rib 19, spaced apart in the direction along the periphery of the case body 2. The height of each regulating rib 21 from the bottom wall 2a of the case body 2 is set to be greater than the height of the housing area indicator rib 19 and the contact rib 20, thereby forming a stepped portion 22 (shown in Figure 7) between the housing area indicator rib 19 and each regulating rib 21. 【0039】 The storage area indicator ribs 19 function as a guide when arranging the electronic device D inside the case body 2, and the user adjusts the position so that the electronic device D fits inside the storage area indicator ribs 19. At that time, the stepped portions 22 formed by each regulating rib 21 serve to restrict the electronic device D from protruding from inside the storage area indicator ribs 19. 【0040】 As shown in Figure 5, the electronic device D is placed inside the case body 2 with the device resting on each contact rib 20. When the frame 3 is closed and connected to the case body 2 by the buckles 4l, 4r, and 4u, the transparent sheet 5 stretches out while adhering tightly to the screen of the electronic device D, and the tension of the sheet holds the electronic device D between itself and each contact rib 20. Since the electronic device D is spaced apart from the bottom wall 2a of the case body 2 by a distance equivalent to the height of the contact ribs 20, interference between the camera part Da and the bottom wall 2a of the case body 2 can be prevented, even if, for example, the camera part Da protrudes from the back of the electronic device D. 【0041】 《Support structure of stand 6 relative to case body 2》 As shown in Figure 2, the stand 6 has arms 6b extending downward from the left and right base ends 6a, and the lower ends of the arms 6b are connected to each other via tip ends 6c that extend to the left and right, forming a concave shape that opens upward. A stand storage section 24 is recessed on the back surface of the case body 2 in which a stand 6 of this shape is stored. 【0042】 More specifically, the stand storage section 24 consists of a pair of arm storage sections 24a along the left and right sides of the back surface of the case body 2, and a tip storage section 24b along the bottom of the back surface, and as a whole, it has a shape that corresponds to the stand 6. The stand 6 is stored in this stand storage section 24 when not in use, and the left and right base ends 6a of the stand 6 are pivotally supported on the upper part of the arm storage section 24a. 【0043】 Figure 10 is an exploded cross-sectional perspective view showing details of part A in Figure 2; Figure 11 is a cross-sectional view taken along line XX in Figure 8 showing the pivot point on the right side of the stand 6; Figure 12 is a cross-sectional view taken along line XI-XI in Figure 8 showing the angle adjustment plate on the right side of the stand 6; and Figure 13 is a cross-sectional view taken along line XIII-XIII in Figure 2 showing the case where the waterproof case 1 attached to the wall is removed using the latching recess. The following describes the pivot point on the right side of stand 6, but the pivot point on the left side has the same symmetrical structure. 【0044】 As shown in Figures 8-12, on the back surface of the case body 2, the upper part of the arm storage section 24a is formed deeper than other parts, and a semicircular shaft recess 26 is formed on the outer circumference of the upper part (in this case, the right side). A right side wall 2c, which forms the right side of the case body 2, is disposed on the outer circumference of the shaft recess 26, and a slit-shaped angle adjustment chamber 27 is defined between the right side wall 2c and the shaft recess 26. In order to distinguish it from the right side wall 2c, the left side wall of the case body 2 is labeled as member number 2b in each figure. The left and right sides of the case body 2 correspond to the "one side and the other side of the case body" of the present invention, and the left wall 2b and the right wall 2c correspond to the "side walls forming the outer surface" of the present invention. 【0045】 A pivot pin 28 is provided on the right side of the base end 6a of the stand 6, extending to the right, i.e., towards the outer circumference. An auxiliary pin 29 is provided on the left side of the base end, extending to the left, i.e., towards the inner circumference. The pivot pin 28 and the auxiliary pin 29 are located on the same axis. As shown in Figures 8 and 11, the pivot pin 28 is rotatably fitted into the axial recess 26 and is held in place by the tip 12 of the closed right buckle 4r, preventing it from coming out of the axial recess 26. As shown in Figure 8, the auxiliary pin 29 is rotatably fitted into the axial hole 30 formed in the upper part of the arm storage section 24a. Thus, the right-side pivot point of the stand 6 is constructed similarly. As a result, the stand 6 is foldably connected to the case body 2. 【0046】 Furthermore, as shown in Figures 10 and 12, an angle adjustment plate 31, which forms a fan shape centered on the pivot pin 28, is integrally formed at the right end of the pivot pin 28 and is disposed within the angle adjustment chamber 27 of the case body 2. On the right side surface of the angle adjustment plate 31, four engagement recesses 31a and one engagement groove 31b are arranged in an arc shape centered on the axis of the pivot pin 28. In addition, the portion of the right side wall 2c corresponding to the angle adjustment plate 31 is arc-shaped (shown in Figure 3), and two engagement protrusions 32 are formed on its left side, each fitting into either the engagement recess 31a or the respective engagement groove 31b of the angle adjustment plate 31. The engagement recesses 31a, the respective engagement grooves 31b, and the engagement protrusions 32 correspond to the "engagement portion" of the present invention. 【0047】 When the angle adjustment plate 31 rotates around the pivot pin 28, the engagement relationship between the engagement recess 31a and engagement groove 31b and the engagement projection 32 switches, and the rotation of the angle adjustment plate 31 is restricted in stages accordingly. The angle adjustment plate 31 on the left side of the stand 6 is similarly restricted in rotation, so as a result the stand 6 can be arbitrarily held at multiple angles in the open direction from the angle in which it is stored in the stand storage section 24. Therefore, in the standing position of the waterproof case 1 with the lower part of the case body 2 and the tip 6c of the stand 6 in contact with the floor or the like, its tilt angle can be arbitrarily changed according to the angle of the stand 6. 【0048】 As shown in Figures 6 and 13, the left and right centers of the tip storage section 24b of the stand storage section 24 are curved upward and expanded, and correspondingly the left and right centers of the tip section 6c of the stand 6 are formed to curve upward. As a result, when the stand 6 is stored in the stand storage section 24, a latching recess 33 is formed in the left and right centers of the lower part of the case body 2, opening downward and to the back side. 【0049】 Furthermore, a projection 34 is formed on the curved portion of the tip 6c of the stand 6, and a recess 35 is formed on the curved portion of the tip storage section 24b. When the stand 6 is stored in the stand storage section 24, the projection 34 fits into the recess 35, and in cooperation with the angle adjustment plate 31 described above, the stand 6 is kept in the stored position. This ensures that, for example, the stand 6 does not unintentionally pop out when carrying the waterproof case 1. 【0050】 As shown in Figures 2 and 13, square magnets 36 are attached to each of the four corners of the back surface of the case body 2 using double-sided tape. Therefore, for example, if the bathroom wall W is made of steel plate, the waterproof case 1 can be attached to the wall W using the magnets 36, and the screen of the electronic device D inside can be viewed. 【0051】 [Effects and benefits obtained by this embodiment] Next, the effects and benefits achieved by the configuration of each part of the waterproof case 1 of this embodiment will be explained. 1(a). As shown in Figure 2, the pivot points for the base end 6a of the stand 6 are located on the left and right sides of the back surface of the case body 2, respectively. Therefore, as shown in Figure 2, for example, the stand 6 can be constructed with arms 6b extending downward from the left and right base ends 6a, and their lower ends connected to each other by tip portions 6c extending in the left-right direction. As a result, a long area corresponding to the length of the tip portions 6c can be placed in contact with the floor or other surface, thereby achieving a stable stand function. 【0052】 The shape of the stand 6 is not limited to this, and can be changed to any shape that can achieve a stable upright position for the waterproof case 1 by utilizing the pivot points provided on the left and right. For example, the middle of the left and right arms 6b in the vertical direction may be connected to each other via the tip 6c, in which case the lower ends of the arms 6b, which are spaced apart in the left and right directions, will each make contact with the floor or the like, thus achieving the same stability of the stand function as in the case of Figure 2. 【0053】 1(b). In relation to 1(a) above, as shown in Figures 8 and 9, the left and right pivot points of the stand 6 relative to the case body 2 are arranged so as to overlap on the back side with the left and right sides of the sealing material 5b, respectively, in other words, with the portion that extends in the vertical direction. More specifically, the pivot points of the stand 6 in this embodiment are constructed by fitting the pivot pin 28 and auxiliary pin 29 of the stand 6 into the pivot recess 26 and pivot hole 30 of the case body 2, respectively. In particular, the pivot recess 26 and pivot pin 28 are located on the back side of the sealing material 5b and overlap with the left and right sides of the sealing material 5b in the left-right direction. As a result, the pivot points of the stand 6 are positioned without protruding outward from the sealing material 5b, and the external dimensions of the waterproof case 1 in the left-right direction can be reduced and made more compact compared to, for example, a case where the pivot points of the stand 6 are located on the outer circumference of the sealing material 5b. Therefore, the left and right pivot recesses 26 and pivot pins 28 correspond to the "one side and the other side pivot points of the stand" in this invention. 【0054】 2. As shown in Figure 8, the base ends 11 of the left and right buckles 4l and 4r that connect the case body 2 and the frame 3 are arranged on the outer circumference of the annular sealing material 5b so that they are adjacent to the sealing material 5b and the pivot points of the stand 6 (axis recess 26 and pivot pin 28). In addition, the tip ends 12 of the left and right buckles 4l and 4r are arranged so that they are adjacent to the pivot points of the stand 6 on the back side. 【0055】 The base ends of the left and right buckles 4l and 4r are positioned adjacent to each other on the outer circumference of the pivot point of the seal material 5b and the stand 6 without creating any wasted space. This suppresses the expansion of the external dimensions of the waterproof case 1 in the left-right direction due to the presence of the buckles 4l and 4r. Furthermore, the tips of the buckles 4l and 4r are positioned adjacent to each other on the back side of the pivot point of the stand 6 without creating any wasted space, thus suppressing the expansion of the external dimensions of the waterproof case 1 in the front-back direction. 【0056】 3. As shown in Figures 8, 10, and 11, pivot pins 28 are provided protruding from the left and right base ends 6a of the stand 6, and are fitted into the axial recesses 26 of the case body 2, respectively, to prevent the pivot pins 28 from detaching from the axial recesses 26 when the left and right buckles 4l and 4r are closed. By utilizing the closed buckles 4l and 4r in this manner, the rotation pin 28 is prevented from detaching, thereby forming the pivot point of the stand 6. Consequently, a structure for preventing the rotation pin 28 from detaching, such as a dedicated component, is unnecessary, and the number of parts in the waterproof case 1 can be reduced. 【0057】 4. As shown in Figures 8 and 9, auxiliary pins 29 are provided protruding from the left and right base ends 6a of the stand 6, and are rotatably fitted into shaft holes 30 formed on the left and right sides of the back surface of the case body 2. By bending the stand 6 to widen the distance between the left and right auxiliary pins 29 and inserting the auxiliary pins 29 into the axial holes 30 of the case body 2, the stand 6 is connected to the case body 2. When the buckles 4l, 4r, and 4u are opened to separate the frame 3 from the case body 2, the left and right pivot pins 28 can be detached from the axial recesses 26. However, since the connection of the stand 6 to the case body 2 is maintained by the auxiliary pins 29, the operation of inserting and removing electronic devices D into and from the storage compartment S can be easily performed. 【0058】 5. As shown in Figures 8 and 10, the left wall 2b and right wall 2c of the case body 2 are positioned between the shaft recess 26 and the base ends 11 of the left and right buckles 4l and 4r, respectively, and angle adjustment chambers 27 are defined between the left wall 2b and right wall 2c and the shaft recess 26. Furthermore, angle adjustment plates 31 are integrally formed on the left and right rotation pins 28 of the stand 6 and positioned within the angle adjustment chambers 27. The engaging protrusions 32 formed on the left wall 2b and right wall 2c and the engaging recesses 31a and engaging grooves 31b formed on the angle adjustment plates 31 are engaged with each other, allowing the stand 6 to be held at any of multiple angles. 【0059】 Therefore, in the standing position of the waterproof case 1 with the lower part of the case body 2 and the tip of the stand 6 in contact with the floor or the like, the tilt angle can be arbitrarily changed according to the angle of the stand 6. This function is realized by a simple structure in which the engaging protrusions 32 on the left wall 2b and the right wall 2c of the case body 2 engage with the engaging recesses 31a and engaging grooves 31b of the angle adjustment plate 31 provided on the stand 6. Therefore, compared to a stand using a link mechanism, for example, as described in Patent Document 1, manufacturing costs can be reduced. 【0060】 Furthermore, the shaft recess 26, the rotation pin 28 of the stand 6, the angle adjustment plate 31, the left side wall 2b or the right side wall 2c, and the base ends 11 of the left and right buckles 4l and 4r are arranged in parallel from the inner side to the outer side of the waterproof case 1. As a result, these components are arranged without creating any wasted space, thus suppressing an increase in the outer dimensions of the waterproof case 1 in the left-right direction. 【0061】 6. As shown in Figures 2 and 6, a magnet 36 is attached to the back surface of the case body 2, and a latching recess 33 is formed in the left and right center of the lower part of the case body 2, opening downwards and to the back. Therefore, the waterproof case 1 can be attached to the bathroom wall W or the like using the magnet 36, making the screen of the electronic device D inside visible. As shown in Figure 13, in this state, the latch recess 33 is closed on the back side by the wall W or the like, but it is open at the bottom. For this reason, when removing the waterproof case 1, you can easily peel it off the wall W or the like by hooking your fingertips into the latch recess 33 from below. 【0062】 7. As shown in Figures 8 and 9, the transparent surface 5a of the stretchable transparent sheet 5 is used as a display window, and a sealing material 5b is integrally formed around the transparent surface 5a. Furthermore, a sealing groove 15 into which the sealing material 5b is fitted is formed on the back surface of the frame 3, and a sealing wall 16 that presses against the sealing material 5b in the sealing groove 15 is formed on the surface of the case body 2. This sealing wall 16 is positioned adjacent to the shaft recess 26 on the surface side of the shaft recess 26 into which the pivot pin 28 is fitted. 【0063】 Therefore, a storage chamber S is defined between the case body 2 and the transparent surface 5a of the transparent sheet 5, and the electronic device D is sandwiched and held between the case body 2 and the transparent surface 5a. In addition, the sealing wall 16 is pressed against the sealing material 5b in the sealing groove 15, thereby maintaining a liquid-tight seal inside the storage chamber S. Furthermore, since the sealing walls 16 that perform these functions are arranged adjacent to each other on the surface side of the shaft recess 26 without creating any wasted space, it is possible to suppress the expansion of the external dimensions of the waterproof case 1 in the front-back direction. 【0064】 8. As shown in Figures 8 and 9, the stand 6 is shaped by extending arms 6b from the left and right base ends 6a, respectively, and connecting them at their respective tip ends 6c. A stand storage section 24 for housing the stand 6 is recessed in the back surface of the case body 2. The left and right arm storage sections 24a of the stand storage section 24 are arranged to be adjacent to each other on the inner circumference side of the tip ends 12 of the buckles 4l and 4r, respectively. 【0065】 Therefore, when the stand 6 is not in use, it is stored in the stand storage section 24 of the case body 2, thus suppressing an increase in the external dimensions of the waterproof case 1 in the front-to-back direction. Furthermore, the arm storage section 24a of the stand storage section 24, which performs this function, is arranged so as to be adjacent to the inner circumference of the tips 12 of the left and right buckles 4l and 4r without creating any wasted space. As a result, an increase in the external dimensions of the waterproof case 1 in the left-to-right direction can be suppressed. 【0066】 This concludes the description of the embodiments, but the embodiments of the present invention are not limited to these embodiments. For example, in the above embodiment, a stretchable transparent sheet 5 is stretched over the frame 3, and the tension of the sheet holds the electronic device D in the housing chamber S, while the screen of the electronic device D is visible through the transparent surface 5a, but the invention is not limited to this. For example, a display window made of transparent resin may be provided on the frame 3, and the electronic component D may be held in the housing chamber S by a separate member. In the above embodiment, the sealing material 5b is integrally formed around the transparent sheet 5, but this is not limited to this, and for example, the sealing material 5b may be a separate component. In the above embodiment, the frame 3 is connected to the case body 2 by buckles 4l, 4r, and 4u, but this is not the only option, and a different connection structure may be adopted. [Explanation of Symbols] 【0067】 1 Waterproof case 2 Case body 2a Bottom wall 2b Left side wall (side wall) 2c Right side wall (side wall) 3. Frame (Lid) 4L Left buckle (buckle) 4r Right buckle (buckle) 5. Transparent sheet (lid) 5a Transparent surface (display window) 5b Sealant 6 Stands 6a Proximal end 6b Arm 11 Proximal end 12 Tip 15 seal groove 16 Seal Wall 24a Arm storage section 26. Axle recess (axle support point) 27 Angle adjustment room 28. Rotating pin (pivot point) 29 Auxiliary pins 30 shaft holes 31 Angle adjustment plate 31a Engaging recess (engaging portion) 31b Engagement groove (engagement part) 32 Engaging projection (engaging portion) 33 Recessed 36 Magnets D Electronic equipment S Confinement Chamber

Claims

[Claim 1] In a waterproof case for electronic equipment, a lid having a display window is superimposed on the front surface of the case body to define a storage chamber in which electronic equipment is housed, an annular sealing material is interposed around the case body and the lid to maintain a liquid-tight seal on the storage chamber, and a pair of base ends of stands are pivotally supported on one side and the other side of the back surface of the case body, thereby foldably connecting the stands to the case body, The pivot points on one and the other sides of the stand are arranged so as to overlap on the back side with the parts corresponding to one and the other sides of the sealing material, respectively. The lid is further provided with a pair of buckles, each having a base end that can be opened and closed, and which, when closed, have their tips hooked onto one side and the other side of the case body, respectively, to connect the lid to the case body, while when opened, the hooking of the tips onto one side and the other side of the case body is released, respectively, allowing the lid to be separated. The base ends of the buckles on one side and the other side are arranged on the outer circumference of the annular sealing material so as to be adjacent to the sealing material and the pivot support points of the stand, respectively. The tips of the buckles on one side and the other side are arranged so that, when closed, they are adjacent to each other on the back side with respect to the pivot point of the stand. A waterproof case for electronic devices characterized by the following features. [Claim 2] A pivot pin is provided protruding outwards from the base end on one side and the other side of the aforementioned stand, On one side and the other side of the back surface of the case body, axial recesses are formed into which the pivot pin is rotatably fitted. Each of the aforementioned pivot pins is prevented from detaching from the shaft recess by the tip of the pair of buckles that have been closed, and thus constitutes the pivot support points on one side and the other side of the stand. A waterproof case for an electronic device as described in claim 1. [Claim 3] Auxiliary pins are provided protruding toward the inner circumference at the base ends of one and the other sides of the aforementioned stand. On one side and the other side of the back surface of the case body, axial holes are formed into which the auxiliary pins are rotatably fitted. A waterproof case for an electronic device as described in feature 2. [Claim 4] The side walls forming one and the other outer surfaces of the case body are each disposed between the shaft recess and the base end of the buckle. An angle adjustment chamber is defined between the side walls on one and the other side and the shaft recess, An angle adjustment plate is integrally formed on the rotating pins on one side and the other side of the stand, and is disposed within the angle adjustment chamber. Engaging portions are integrally formed on the one and other side walls and the angle adjustment plate, respectively, which engage with each other to arbitrarily hold the stand at multiple angles. A waterproof case for an electronic device as described in feature 2. [Claim 5] The case body has a magnet attached to its back and a hooking recess formed somewhere around its perimeter, allowing a fingertip to be gripped. A waterproof case for an electronic device as described in feature 2. [Claim 6] The display window is a transparent sheet stretched over the frame-shaped lid, which is elastic and, by tension, sandwiches the electronic device between itself and the bottom wall of the case body. The sealing material is integrally formed around the transparent sheet, A sealing groove into which the sealing material is fitted is formed on the back side of the lid. A sealing wall is formed on the surface side of the case body, which presses against the sealing material in the sealing groove. The sealing wall is disposed adjacent to the shaft recess on the surface side of the shaft recess into which the pivot pin fits. A waterproof case for an electronic device as described in feature 2. [Claim 7] The stand is formed by extending arms from the base ends of one side and the other side, respectively, and connecting them to each other. On one side and the other side of the back surface of the case body, arm storage compartments are recessed, in which each of the arms is stored. The arm storage sections on one side and the other side are arranged so as to be adjacent to each other on the inner circumference side of the tip of the buckle. A waterproof case for an electronic device as described in claim 1.

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