Power supply device, pocket-equipped power supply device, and bed device with power supply device

Abstract

To provide a power supply device configured to prevent catch of a charge cable, and provide a power supply device with a pocket and a bed apparatus with the power supply device.SOLUTION: A power supply device 1 is attached to a bed apparatus 100 including an angle-changeable bottom 130. The power supply device 1 includes a body unit 10 attached to the bottom 130 and having a power supply port 16, and a power cable 20 whose one end is connected to the body unit 10 and that supplies the body unit 10 with electric power.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] FIELD Embodiments of the present invention relate to a power supply device, a pocket-equipped power supply device, and a bed device with a power supply device. [Background technology]

[0002] In recent years, some bed devices have been provided with a power supply port that allows users to charge mobile devices such as smartphones (hereinafter referred to as "smartphones, etc."). Meanwhile, some bed devices have a bottom angle that can be changed. However, if a power supply port is provided in a bed device with a bottom angle that can be changed, there is a problem that the charging cable of the smartphone, etc., may get caught on various parts of the bed device or on the user when the bottom angle is changed. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2003-159156 Summary of the Invention [Problem to be solved by the invention]

[0004] An object of an embodiment of the present invention is to provide a power supply device that can be attached to a bed device that includes a bottom with an adjustable angle, which can prevent the charging cable from getting caught, a power supply device with a pocket, and a bed device with a power supply device. [Means for solving the problem]

[0005] A power supply device according to an embodiment of the present invention is attached to a bed apparatus having a bottom with an adjustable angle. The power supply device includes a main unit attached to the bottom and having a power supply port, and a power cable having one end connected to the main unit and supplying power to the main unit.

[0006] A pocket-type power supply device according to an embodiment of the present invention includes a power supply device and a pocket. The power supply device is attached to a bed device having a bottom with an adjustable angle. The power supply device includes a mounting part that can be fixed to the bottom, a main unit that can be fixed to the mounting part and has a power supply port, and a power cable that has one end connected to the main unit and supplies power to the main unit. The pocket can be fixed to the mounting part. The power supply port is exposed inside the pocket.

[0007] A bed apparatus with a power supply device according to an embodiment of the present invention includes the pocket-equipped power supply device and the bed apparatus. [Effects of the Invention]

[0008] According to the embodiments of the present invention, it is possible to realize a power supply device, a pocket-equipped power supply device, and a bed device with a power supply device that can prevent a charging cable from getting caught. [Brief explanation of the drawings]

[0009] [Figure 1] FIG. 1 is a perspective view showing a bed apparatus with a power supply device according to an embodiment. [Figure 2] FIG. 2 is a side view showing the bed apparatus with a power supply device according to the embodiment, in a state where the bed frame is horizontal and placed at the lowest position. [Figure 3] FIG. 3 is a side view showing a state in which the bed frame and the bottom are tilted in the bed apparatus with a power supply device according to the embodiment. [Figure 4] FIG. 4 is a perspective view showing the mattress stopper of the back bottom. [Figure 5] FIG. 5 is a side view showing the pocket-type power supply device according to the embodiment. [Figure 6] FIG. 6 is a cross-sectional view showing a pocket-type power supply device according to the embodiment. [Figure 7] FIG. 7 is a perspective view showing the attachment portion of the power supply device according to the embodiment, as viewed from the inside. [Figure 8] FIG. 8 is a perspective view showing the attachment portion of the power supply device according to the embodiment, as viewed from the outside. [Figure 9] FIG. 9 is a perspective view showing the main unit and the power cable of the power supply device according to the embodiment, as viewed from the inside. [Figure 10] FIG. 10 is a perspective view showing the main unit of the power supply device according to the embodiment, as viewed from the outside. [Figure 11] FIG. 11 is a perspective view showing the mattress stopper and the attachment portion of the power supply device of the bed apparatus as seen from the inside. [Figure 12] FIG. 12 is a perspective view showing the mattress stopper of the bed apparatus, the attachment portion of the power supply apparatus, and the main unit as viewed from the outside. [Figure 13] FIG. 13 is a cross-sectional view showing a mattress stopper and a power supply device of the bed apparatus. [Figure 14] FIG. 14(a) is a development view showing the first bag portion of the pocket, and (b) is a development view showing the second bag portion. DETAILED DESCRIPTION OF THE INVENTION

[0010] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. In this specification, when a user lies in a supine position on a bed apparatus, the direction in which the head is located as viewed from the torso is referred to as the "head side," the direction in which the feet are located is referred to as the "foot side," the direction in which the right hand is located is referred to as the "right side," the direction in which the left hand is located is referred to as the "left side," the direction in which the room floor is located is referred to as the "bottom side," and the direction in which the ceiling is located is referred to as the "upper side." The head side and the foot side are collectively referred to as the "length direction L," the right side and the left side are collectively referred to as the "width direction W," and the upper side and the lower side are collectively referred to as the "vertical direction V." Within the width direction W, the direction from the center of the bed apparatus toward the left or right side is referred to as the "outside," and the direction from the left or right side toward the center of the bed apparatus is referred to as the "inside."

[0011] <Bed device with power supply> First, a bed apparatus with a power supply device according to this embodiment will be described. FIG. 1 is a perspective view showing a bed apparatus with a power supply device according to this embodiment. FIG. 2 is a side view showing the bed apparatus with a power supply device according to this embodiment, in a state where the bed frame is horizontal and placed at the lowest position. FIG. 3 is a side view showing a state in which the bed frame and the bottom are tilted in the bed apparatus with a power supply device according to this embodiment.

[0012] As shown in FIGS. 1 to 3, a bed apparatus 200 with a power supply device includes a bed apparatus 100 and a pocket-type power supply device 50. The bed apparatus 100 includes a power supply device 50 with a pocket. The power supply device-equipped bed apparatus 200 according to this embodiment is intended for use by, for example, elderly people at home. However, the use of the power supply device-equipped bed apparatus 200 is not limited to the above. The power supply device-equipped bed apparatus 200 is, for example, an assembly-type electric bed.

[0013] The bed device 100 includes a base 110 placed on the floor or the like, a bed frame 120 provided on the base 110, a bottom 130 provided on the bed frame 120, a headboard 140 that can be attached to the head end of the bed frame 120, a footboard 150 that can be attached to the foot end of the bed frame 120, two frame covers 160, an actuator 170 that drives the bed frame 120 and the bottom 130, a power supply unit 180 that supplies power to the actuator 170, and a controller 190.

[0014] The user operates the controller 190 to drive the actuators 170. This allows the user to change the height and angle of the bed frame 120 from the floor surface 910, as well as the angle of each bottom 130, as shown in Figures 2 and 3. Power is supplied to the actuators 170 from a power supply unit 180. The power supply unit 180 is provided with a power terminal for supplying power to the actuators 170, as well as at least one power terminal capable of outputting power.

[0015] The bottom 130 is provided with, from the head side to the foot side, a back bottom 131, a waist bottom 132, a knee bottom 133, and a foot bottom 134. Each of the back bottom 131, the waist bottom 132, the knee bottom 133, and the foot bottom 134 is provided with a bottom body 135 made of metal such as iron and extending in the width direction W, and bottom edges 136 made of resin and attached to both ends of the bottom body 135 in the width direction.

[0016] For example, in the back bottom 131, a pair of bottom edges 136 are attached to four bottom bodies 135 arranged along the length direction L. In the waist bottom 132, a pair of bottom edges 136 are attached to one bottom body 135. In the knee bottom 133, a pair of bottom edges 136 are attached to two bottom bodies 135 arranged along the length direction L. In the leg bottom 134, a pair of bottom edges 136 are attached to three bottom bodies 135 arranged along the length direction L.

[0017] Mattress stoppers 137 extending upward are attached to the outer end of the bottom edge 136 of the back bottom 131. Mattress stoppers 138 extending upward are attached to the two outer corners on the foot side of the bottom edge 136 of the foot bottom 134. Mattress stoppers 137 and 138 are made of, for example, resin.

[0018] FIG. 4 is a perspective view showing the mattress stopper of the back bottom. As shown in FIG. 4, the mattress stopper 137 of the back bottom 131 has a claw portion 137a, a horizontal portion 137b, and a vertical portion 137c. The claw portion 137a extends downward from the horizontal portion 137b. The claw portion 137a fits into a hole formed in the upper surface of the bottom edge 136 to secure the mattress stopper 137 to the bottom edge 136. The horizontal portion 137b is disposed on the upper surface of the bottom edge 136. The vertical portion 137c extends upward from the outer end of the horizontal portion 137b. The boundary between the horizontal portion 137b and the vertical portion 137c is continuously curved.

[0019] The vertical portion 137c is shaped like a generally trapezoidal plate. The length of the vertical portion 137c in the longitudinal direction L decreases as it moves upward, i.e., as it moves away from the horizontal portion 137b. The mattress stopper 137 prevents the mattress 300 from shifting. The upper end of the mattress stopper 137 is located below the upper surface of the mattress 300. The upper portion of the mattress stopper 137 is inclined toward the inside of the power supply device-equipped bed apparatus 200. This inclination allows the upper end of the mattress stopper 137 to bite into the side of the mattress 300. As a result, movement of the mattress 300 in the width direction W, length direction L, and up-down direction V is prevented, and in particular, shifting in the width direction W is prevented.

[0020] Of the pair of mattress stoppers 137 attached to the back bottom 131, a pocket-equipped power supply device 50 is attached to either the left or right mattress stopper 137. The pocket-equipped power supply device 50 may be attached to both the left and right mattress stoppers 137. The pocket-equipped power supply device 50 will be described below.

[0021] <Pocket-type power supply device> FIG. 5 is a side view showing the pocket-type power supply device according to this embodiment. FIG. 6 is a cross-sectional view showing the pocket-type power supply device according to this embodiment.

[0022] First, the configuration of the pocket-type power supply device 50 will be briefly described. 5 and 6, the pocket-equipped power supply device 50 includes a power supply device 1 and a pocket 40. The power supply device 1 includes a main unit 10, a power cable 20, and an attachment part 30. The upper end of the pocket-equipped power supply device 50 is located below the upper surface of the mattress 300. In other words, the thickness of the mattress 300 is selected so that this positional relationship is realized. The thickness of the mattress 300 is, for example, 80 to 160 mm.

[0023] The attachment portion 30 can be fixed to a mattress stopper 137 of the bed apparatus 100. Therefore, the attachment portion 30 can be fixed to the back bottom 131 via the mattress stopper 137. The main unit 10 can be fixed to the attachment portion 30. Therefore, the main unit 10 can be fixed to the back bottom 131 via the attachment portion 30 and the mattress stopper 137.

[0024] One end of the power cable 20 is connected to the main unit 10. The other end of the power cable 20 is connected to a power terminal of the power supply unit 180 of the bed apparatus 100. The power cable 20 supplies power from the power supply unit 180 to the main unit 10. The pocket 40 is made of, for example, cloth, and can be fixed to the mounting part 30.

[0025] Next, the configuration of each component will be described in detail. First, the mounting portion 30 will be described. FIG. 7 is a perspective view showing the attachment portion of the power supply device according to this embodiment as viewed from the inside. FIG. 8 is a perspective view showing the attachment portion of the power supply device according to this embodiment as viewed from the outside.

[0026] As shown in FIG. 7, the mounting portion 30 is integrally formed from, for example, resin. The mounting portion 30 includes a base plate 31 extending along an LV plane parallel to the longitudinal direction L and the vertical direction V. A pair of corners 32 extending on both sides in the longitudinal direction L is provided at the top of the base plate 31. A pair of holding portions 33 extending toward the inside of the bed apparatus 100 is provided at the center of the base plate 31 in the vertical direction V and at both ends in the longitudinal direction L. The distance between the pair of holding portions 33 becomes shorter as they extend upward. Furthermore, the tips of the pair of holding portions 33 are provided with locking portions 33a extending toward each other. An inclined surface 33b is formed at the lower end of the locking portion 33a. For example, the angles formed by the inclined surface 33b and the adjacent surface are all obtuse angles.

[0027] A pair of guide portions 34 are provided on the surface of the base plate portion 31 facing the inside of the bed apparatus 100. The pair of guide portions 34 are spaced apart from each other in the longitudinal direction L. Each guide portion 34 extends along the up-down direction V. An extension portion 34a extending toward the inside of the bed apparatus 100 is provided at the upper end of each guide portion 34, and an extension portion 34b extending toward the inside of the bed apparatus 100 is provided at the lower end of each guide portion 34. A groove 35 is provided in the center of the longitudinal direction L at the bottom of the base plate portion 31.

[0028] As shown in Figure 8, a recess 36 is provided in the center of the surface of the base plate 31 facing outward from the bed apparatus 100. The inner shape of the recess 36 is, for example, a square with rounded corners. The recess 36 is a space in which the main unit 10 is stored. A through-hole 37 that passes through the base plate 31 is provided in the lower part of the recess 36. The through-hole 37 is in communication with the groove 35.

[0029] Next, the main unit 10 and the power cable 20 will be described. FIG. 9 is a perspective view showing the main unit and the power cable of the power supply device according to this embodiment as viewed from the inside. FIG. 10 is a perspective view showing the main unit of the power supply device according to this embodiment as viewed from the outside.

[0030] As shown in Figures 9 and 10, the main unit 10 is provided with a fixed portion 11 and a circuit housing portion 12. The fixed portion 11 is frame-shaped, and has an opening 13 in the center thereof. The outer shape of the fixed portion 11 is, for example, a square with rounded corners. The fixed portion 11 fits into a recess 36 of the mounting portion 30. The fixed portion 11 is fixed to the board portion 31 of the mounting portion 30 with, for example, two screws 14.

[0031] The circuit housing 12 extends from the fixed part 11 to the outside of the bed apparatus 100. The shape of the circuit housing 12 is, for example, a substantially rectangular parallelepiped shape. The circuit housing 12 is arranged so as to cover the opening 13 of the fixed part 11. A circuit 15 is provided inside the circuit housing 12. The circuit 15 is connected to one end of a power cable 20. The circuit 15 is, for example, a circuit that controls charging of a smartphone or the like connected to the power supply port 16.

[0032] A power supply port 16 is provided on the underside of the circuit housing 12, i.e., the downward-facing surface of the main unit 10. The power supply port 16 is, for example, a Universal Serial Bus (USB) port. The power supply port 16 is covered by an openable and closable cover 17. When the cover 17 is closed, the power supply port 16 is protected from the outside. When the cover 17 is opened, the power supply port 16 becomes accessible.

[0033] Next, the relationship between the components will be described. FIG. 11 is a perspective view showing the mattress stopper and the attachment portion of the power supply device of the bed apparatus as seen from the inside. FIG. 12 is a perspective view showing the mattress stopper of the bed apparatus, the attachment portion of the power supply apparatus, and the main unit as viewed from the outside. FIG. 13 is a cross-sectional view showing a mattress stopper and a power supply device of the bed apparatus.

[0034] As shown in FIGS. 11 to 13 , the fixing portion 11 of the main unit 10 fits into the recess 36 of the mounting portion 30 and is fixed by the screw 14. This secures the main unit 10 to the mounting portion 30. At this time, the mounting portion 30, the fixing portion 11, and the circuit housing portion 12 form a substantially continuous housing, thereby protecting the circuit 15 from the outside. The power cable 20 extends from the circuit 15 through the circuit housing portion 12, the opening 13 of the fixing portion 11, the through-hole 37, and the groove 35, and below the mattress stopper 137. The power cable 20 passes below the back bottom 131, and the other end is connected to the power supply unit 180. The power cable 20 is fixed at one or more points to the underside of the back bottom 131 and the bed frame 120.

[0035] Next, a method for attaching the power supply device 1 to the mattress stopper 137 will be described. The mounting portion 30 of the power supply device 1 is moved downward from directly above the vertical portion 137c of the mattress stopper 137. This causes the vertical portion 137c to enter between the pair of holding portions 33 of the mounting portion 30. The vertical portion 137c is generally trapezoidal, and the distance between the pair of holding portions 33 becomes shorter as it moves upward. Therefore, when the mounting portion 30 is lowered to a predetermined position, the pair of holding portions 33 engage with and are fixed to the vertical portion 137c. At this time, in addition to the locking portions 33a of the pair of holding portions 33, the extensions 34a and 34b of the pair of guide portions 34 of the mounting portion 30 also abut against the vertical portion 137c of the mattress stopper 137. As a result, the mounting portion 30 abuts against the mattress stopper 137 at six points.

[0036] The locking portion 33a abuts against the inner surface of the vertical portion 137c of the mattress stopper 137, and the extensions 34a and 34b abut against the outer surface of the vertical portion 137c. This restricts movement of the attachment portion 30 in the width direction W relative to the mattress stopper 137. Furthermore, the pair of retaining portions 33 abut against both end surfaces of the vertical portion 137c facing the length direction L. This restricts movement of the attachment portion 30 in the length direction L relative to the mattress stopper 137. Furthermore, as described above, the trapezoidal vertical portion 137c enters between the pair of retaining portions 33, which are arranged to approach each other as they extend upward, thereby restricting downward movement of the attachment portion 30 relative to the mattress stopper 137. Because the attachment portion 30 engages with the vertical portion 137c, a certain amount of force is required to move the attachment portion 30 upward relative to the mattress stopper 137. In this way, the attachment portion 30 is removably fixed to the mattress stopper 137.

[0037] To remove the power supply device 1 from the mattress stopper 137, an upward load is applied to the mounting portion 30. Applying an upward load easily removes the mounting portion 30 from the mattress stopper 137. On the other hand, even if a large downward load is applied to the mounting portion 30, the mounting portion 30 also comes off the mattress stopper 137. For example, when a person applies weight to the upper end of the mounting portion 30, the mounting portion 30 moves downward relative to the mattress stopper 137, and the pair of retaining portions 33 are pushed apart in the length direction L by the trapezoidal vertical portions 137c of the mattress stopper 137, deforming in directions away from each other. However, because the lower portions of the vertical portions 137c of the mattress stopper 137 are curved toward the inside of the bed apparatus 100, when the mounting portion 30 moves downward a certain distance, the vertical portions 137c move out of contact with the pair of retaining portions 33. As a result, the inclined surfaces 33b come into contact with the side surfaces of the vertical portions 137c, and the mounting portion 30 comes off the mattress stopper 137. In order to make the pair of holding portions 33 easily deformable, it is desirable that the mounting portion 30 be made of a material that can deform in response to an external load while maintaining a certain shape under normal conditions (when there is no external load), and that the material is preferably, for example, polypropylene (PP), polyethylene (PE), polyamide (PA), polyacetal (POM), or ABS resin.

[0038] By providing the inclined surface 33b at the lower end of the locking portion 33a of the holding portion 33, the vertical portion 137c can more easily disengage from between the pair of holding portions 33, making the above-mentioned operation smoother. Furthermore, by placing a finger on the inclined surface 33b and urging the holding portion 33 in a direction away from the vertical portion 137c, the above-mentioned operation becomes even smoother. By adjusting the material of the mounting portion 30 and the angle of the inclined surface 33b, the degree to which the pair of holding portions 33 open can be controlled, and the mounting portion 30 can be reliably removed from the mattress stopper 137 before it is damaged. As described above, according to this embodiment, the power supply device 1 can be easily detached from the mattress stopper 137 without using tools. Furthermore, even if an overload occurs, such as when a user accidentally steps on the power supply device 1, the mounting portion 30 detaches from the mattress stopper 137 before the power supply device 1 and the mattress stopper 137 are damaged, thereby avoiding damage.

[0039] Next, the pocket 40 will be described. FIG. 14(a) is a development view showing the first bag portion of the pocket, and (b) is a development view showing the second bag portion. As shown in Figures 5, 6, 14(a) and 14(b), the pocket 40 includes a first bag portion 41, a second bag portion 42, and an attachment portion receiver 43. As described above, the pocket 40 is made of, for example, cloth. The pocket 40 may be made of a soft material such as a resin sheet, or may be made of a hard material such as a hard resin or metal. In this embodiment, an example in which the pocket 40 is made of cloth will be described.

[0040] The first bag portion 41 is the main storage portion of the pocket 40. For example, a user can store a smartphone, glasses, etc. in the first bag portion 41. The shape of the first bag portion 41 is not particularly limited, but it is preferable that the length in the width direction W is shorter than the length in the length direction L and the length in the up-down direction V so as to ensure sufficient storage space while not interfering with the user getting on and off the bed apparatus 100 or the movement of people around the bed apparatus 100. In this embodiment, the shape of the pocket 40 is a substantially rectangular parallelepiped that is longest in the length direction L and shortest in the width direction W.

[0041] The first bag portion 41 is composed of a surface 41a, a back surface 41b, a bottom surface 41c, and two side surfaces 41d. The surface 41a is the outer surface, i.e., the surface opposite the bed apparatus 100. The back surface 41b is the inner surface, i.e., the surface facing the bed apparatus 100. The bottom surface 41c faces downward. The side surfaces 41d face both sides in the length direction L. The surface 41a, the bottom surface 41c, and the back surface 41b may be formed from a single piece of cloth. Note that the first bag portion 41 is a gusseted bag, but it may also be a non-gusseted bag. In other words, the bottom surface 41c and the side surfaces 41d do not need to be provided. The upper edge 41e of the first bag portion 41 is open. A first hole 44 is formed in the back surface 41b of the first bag portion 41, through which the main unit 10 can be inserted.

[0042] The second bag portion 42 is a secondary storage portion of the pocket 40. The second bag portion 42 can store a charging cable 400 for a user's smartphone or the like. The second bag portion 42 is smaller than the first bag portion 41 and can be stored within the first bag portion 41. The second bag portion 42 is composed of a front surface 42a and a back surface 42b. The front surface 42a and the back surface 42b may be formed from a single piece of fabric. The upper edge 42c of the second bag portion 42 is open. Although the second bag portion 42 is a bag without a gusset, it may also be a bag with a gusset. In other words, the second bag portion 42 may also have a bottom and side surfaces. The second bag portion 42 is connected to the first bag portion 41. For example, the upper portion of the back surface 42b of the second bag portion 42 is joined to the upper portion of the back surface 41b of the first bag portion 41 by sewing. A second hole 45 communicating with the power supply port 16 of the main unit 10 is formed in the back surface 42b. The second hole 45 is formed, for example, by overlapping two pieces of fabric.

[0043] The attachment portion receiver 43 is made of a single piece of cloth and is attached to the back surface 41b of the first bag portion 41 so as to cover the first hole 44. The attachment portion receiver 43 and the second bag portion 42 may be formed from a continuous piece of cloth. When viewed from inside the bed apparatus 100, the attachment portion receiver 43 has, for example, a rectangular shape. An upper edge 43a and two side edges 43b of the attachment portion receiver 43 are attached to the back surface 41b of the first bag portion 41 by, for example, sewing. A lower edge 43c of the attachment portion receiver 43 is not attached to the back surface 41b of the first bag portion 41. As a result, a bag 46 with an open lower edge is formed between the first bag portion 41 and the attachment portion receiver 43. The bag 46 is large enough to accommodate the vertical portion 137c of the mattress stopper 137 and the attachment portion 30.

[0044] By placing the bag 46 over the mounting portion 30 and the vertical portion 137c of the mattress stopper 137, the mounting portion 30 and the vertical portion 137c are stored in the bag 46. At this time, the pair of corners 32 of the mounting portion 30 are positioned within the upper corners of the bag 46, thereby fixing the pocket 40 to the mounting portion 30. Furthermore, by inserting the main unit 10 through the first hole 44, the main unit 10 is positioned between the back surface 41b of the first bag portion 41 and the second bag portion 42. As a result, the power supply port 16 is exposed inside the pocket 40.

[0045] As described above, power is supplied from the power supply unit 180 of the bed apparatus 100 to the main unit 10 of the power supply device 1 via the power cable 20. Most of the power cable 20 is arranged below the bottom 130, and is fixed to the bed frame 120 and the underside of the bottom 130 at several points as needed. A certain amount of slack is provided in the length of the power cable 20 to accommodate changes in the angle of the bed frame 120 and the back bottom 131. For this reason, the power frame 20 inevitably becomes loose, but this slack occurs below the bottom 130, making it easy to manage.

[0046] The power cable 20 reaches the inner surface of the bed device 100 at the mounting portion 30 from below the back bottom 131, is fixed by the groove 35 of the mounting portion 30, passes through the groove 35, passes through the through hole 37 to reach the outside of the mounting portion 30, passes through the opening 13 of the fixing portion 11 of the main unit 10, and is connected to the circuit 15.

[0047] The main unit 10 has an inner portion disposed between the attachment portion receiver 43 of the pocket 40 and the first bag portion 41, and is inserted through a first hole 44 in the back surface 41b of the first bag portion 41, and an outer portion disposed within the first bag portion 41. Therefore, the power supply port 16 of the main unit 10 is exposed within the first bag portion 41.

[0048] Electrodes are supplied from the power supply port 16 of the main unit 10 to the user's smartphone or the like via a charging cable 400. One terminal 401 of the charging cable 400 is connected to the power supply port 16. The charging cable 400 passes through a second hole 45 provided in the back surface 42b of the second pouch portion 42 and is introduced into the second pouch portion 42. When in use, the charging cable 400 is pulled upward from the second pouch portion 42, and the other end 402 is connected to the smartphone or the like.

[0049] The charging cable 400 is owned by the user and is difficult for the designer and installer of the bed device with power supply device 200 to manage, but even if the angle of the bed frame 120 and the back bottom 131 changes, the positional relationship between the main unit 10 and the user does not change much, so problems caused by angle changes are unlikely to occur.

[0050] Next, how to use the pocket-type power supply device 50 will be described. When a user on the bed device 100 uses a smartphone or the like while charging it, the user connects one terminal 401 of the charging cable 400 to the power supply port 16, connects the other terminal 402 to the smartphone or the like, pulls the charging cable 400 out onto the bed device 100, and uses the smartphone or the like on the bed device 100.

[0051] When the user uses the smartphone or the like without charging it, the user removes the terminal 402 of the charging cable 400 from the smartphone or the like and stores the charging cable 400 in the second pouch portion 42 of the pocket 40.

[0052] When the user charges the smartphone or the like without using it, the user stores the smartphone or the like in the first pouch portion 41 with the terminal 402 of the charging cable 400 still connected to the smartphone or the like.

[0053] When the user is not using or charging the smartphone or the like, the terminal 402 of the charging cable 400 is removed from the smartphone or the like, the charging cable 400 is stored in the second bag portion 42 of the pocket 40, and the smartphone or the like is stored in the first bag portion 41.

[0054] In either case, the terminal 401 of the charging cable 400 can remain connected to the power supply port 16 of the power supply device 1. In addition, the user can store personal belongings such as eyeglasses in the first pouch 41.

[0055] Next, the effects of this embodiment will be described. As shown in FIGS. 1 to 3, in the bed apparatus 200 with a power supply device according to this embodiment, the angle of the back bottom 131 can be changed by an actuator 170. This broadens the options for medical treatment and improves the comfort of the user. Furthermore, since the bed apparatus 200 with a power supply device is provided with a pocket-type power supply device 50, the user can connect a smartphone or the like to the power supply port 16 via a charging cable 400 and charge it while lying on the bed apparatus 100. This improves user convenience.

[0056] In this embodiment, the pocket-equipped power supply device 50 is attached to the back bottom 131 of the bed apparatus 100. As a result, even if the angle of the back bottom 131 changes, the main unit 10 moves following the back bottom 131. Therefore, even if the angle of the back bottom 131 changes while a user on the bed apparatus 100 connects a charging cable 400 of a smartphone or the like to the power supply port 16, the positional relationship between the power supply port 16 and the smartphone or the like does not change, so problems such as the charging cable 400 getting caught on parts of the bed apparatus 100 or the user, or the charging cable 400 becoming too stretched, are unlikely to occur.

[0057] In this embodiment, a portion of the power cable 20 is disposed below the back bottom 131. When the angle of the back bottom 131 changes, the positional relationship between the main unit 10 and the power supply unit 180 changes, so it is necessary to provide redundancy to the power cable 20 in advance. As the angle of the back bottom 131 changes, a portion of the power cable 20 inevitably becomes loose or changes position. However, since the user does not normally access the space below the back bottom 131 and there are few disturbance factors, problems such as the power cable 20 getting caught on the back bottom 131 are unlikely to occur. For example, by taking measures such as fixing the power cable 20 to the back bottom 131 or the bed frame 120 at several points, the installer of the power supply device-equipped bed apparatus 200 can appropriately manage the behavior of the power cable 20 as the angle of the bed frame 120 and the back bottom 131 changes.

[0058] On the other hand, if the power supply port were provided on the headboard 140, the positional relationship between the power supply port and the user would change significantly as the angles of the bed frame 120 and the back bottom 131 change. Furthermore, the power supply port is connected to a smartphone or other device via a charging cable, which is difficult to manage. This can easily lead to problems such as the charging cable getting caught on parts of the bed apparatus 100 or the user, or the charging cable becoming too stretched.

[0059] In this embodiment, the power supply port 16 is disposed on the downward-facing surface of the main unit 10. This protects the power supply port 16 from dust and liquids falling from above. Also, the power supply port 16 is covered by the cover 17, which provides more effective protection for the power supply port 16.

[0060] The attachment portion 30 is fixed to the mattress stopper 137, thereby fixing the main unit 10 to the back bottom 131. The mattress stopper 137 is a member provided to prevent the main unit and mattress 300 from shifting. As described above, according to this embodiment, the main unit 10 can be fixed to the back bottom 131 using the existing mattress stopper 137, and therefore the increase in cost due to the provision of the pocketed power supply device 50 is small.

[0061] Furthermore, since the upper end of the mattress stopper 137 is located below the upper surface of the mattress 300, the upper end of the pocketed power supply device 50 is also located below the upper surface of the mattress 300. This prevents the pocketed power supply device 50 from getting in the way when the user sits on the edge of the mattress 300.

[0062] By forming the attachment portion 30 from resin, it is possible to appropriately deform the attachment portion 30 by applying force to it. Furthermore, by configuring the attachment portion 30 and the mattress stopper 137 as described above, the pocketed power supply device 50 can be easily attached to and detached from the bed apparatus 100 without using tools. As a result, the pocketed power supply device 50 can be retrofitted after the bed apparatus 100 has been installed. Furthermore, when the installation location of the bed apparatus 100 is changed, the position where the pocketed power supply device 50 is placed can be switched between the left and right sides.

[0063] The pocket-type power supply device 50 according to this embodiment is provided with a pocket 40, allowing the user to store personal items such as a smartphone, eyeglasses, etc., in the pocket 40. This improves user convenience. Also, the first hole 44 is provided on the back surface 41b of the first pouch portion 41, allowing the main unit 10 to be placed in the pocket 40 through the first hole 44, thereby protecting the main unit 10. Furthermore, the power supply port 16 is exposed inside the pocket 40, allowing the user to charge the smartphone, etc., while keeping it in the pocket 40.

[0064] The pocket 40 is provided with the attachment portion receiver 43, which allows the pocket 40 to be fixed to the attachment portion 30 and the mattress stopper 137 with a simple structure. Furthermore, the attachment portion receiver 43 covers the attachment portion 30 and the mattress stopper 137, which protects the attachment portion 30 and the mattress stopper 137 and also provides a high level of design.

[0065] In this embodiment, the second pouch portion 42 is provided within the first pouch portion 41, and the second pouch portion 42 has a second hole 45 that communicates with the power supply port 16, so that the charging cable 400 can be pulled into the second pouch portion 42. This allows the charging cable 400 to be stored separately from a smartphone or the like, eyeglasses or the like. As a result, it is possible to prevent the charging cable 400 from interfering with the smartphone or the like, eyeglasses or the like, and to prevent the charging cable 400 from becoming entangled with the eyeglasses or the like, or the eyeglasses or the like from falling out of the pocket 40 when trying to pull the charging cable 400 out of the pocket 40.

[0066] By storing the charging cable 400 in the second pouch 42, the terminal 401 of the charging cable 400 can be kept connected to the power supply port 16 at all times. This reduces wear on the terminal 401 and the power supply port 16. Furthermore, the second pouch 42 covers the main unit 10, protecting the main unit 10. Meanwhile, the user can easily access the power supply port 16 by flipping up the second pouch 42. This makes it easy to attach and detach the terminal 401 to and from the power supply port 16.

[0067] The above-described embodiment is an example of realizing the present invention, and the present invention is not limited to this embodiment. For example, the present invention also includes any embodiment in which some components or steps are added, deleted, or modified. [Explanation of symbols]

[0068] 1: Power supply device 10: Main unit 11: Fixed part 12: Circuit housing 13: Opening 14: Screw 15: Circuit 16: Power supply port 17: Cover 20: Power cable 30: Mounting part 31: Circuit board section 32: Corner 33: Holding part 33a: Locking part 33b: Inclined surface 34: Guide section 34a, 34b: Extension part 35: Groove 36: Recess 37:Through hole 40: Pocket 41: 1st bag section 41a: Surface 41b: Back 41c: bottom 41d: Side 41e: Upper edge 42:Second bag section 42a: Surface 42b: Back 42c: Upper edge 43: Mounting part holder 43a: Upper edge 43b: Side edge 43c: lower edge 44: First hole 45: 2nd hole 46: Bag 50: Pocket-type power supply device 100: Bed device 110: Pedestal 120: Bed frame 130: Bottom 131: Back bottom 132: Waist bottoms 133: Knee bottoms 134: Foot bottom 135: Bottom body 136: Bottom edge 137, 138: Mattress stopper 137a: Claw part 137b:Horizontal part 137c: Vertical section 140: Headboard 150:Footboard 160: Frame cover 170: Actuator 180: Power supply section 190: Controller 200: Bed device with power supply 300: Mattress 400: Charging cable 401, 402: Terminals 910:Floor L: Length direction V: Vertical direction W: Width direction

Claims

1. A power supply device attached to a bed apparatus having a bottom whose angle can be changed and a mattress stopper attached to an end of the bottom and having an upper end positioned below an upper surface of a mattress, an attachment portion that can be detachably fixed to the mattress stopper; a main unit that can be fixed to the mounting portion and has a power supply port; a power cable having one end connected to the main unit and supplying power to the main unit; Equipped with A power supply device that moves in accordance with changes in the angle of the bottom.

2. The bed device further includes an actuator that drives the bottom, and a power supply unit that supplies power to the actuator, The power supply device according to claim 1 , wherein the other end of the power cable is connected to the power supply unit.

3. The power supply device according to claim 1 or 2, wherein the power supply port is disposed on a downwardly facing surface of the main unit.

4. The mounting portion is deformable, The power supply device according to any one of claims 1 to 3, which can be retrofitted to the bed device.

5. The mattress stopper has a vertical portion extending in a first direction away from the bottom and along a second direction in which the end of the bottom extends, and the length of the vertical portion in the second direction becomes shorter the further away from the bottom it is, The mounting portion is a substrate portion extending in the first direction and the second direction; a pair of holding portions extending from the substrate portion in a third direction perpendicular to the first direction and the second direction and spaced apart from each other in the second direction; a pair of locking portions extending in directions approaching each other from the tip of the holding portion; and 5. The power supply device according to claim 1, wherein the distance between the pair of holding portions decreases as the holding portions move away from the bottom.

6. A power supply device described in any one of claims 1 to 5, wherein when attached to the bed device, the upper end is positioned below the top surface of the mattress.

7. The power supply device according to any one of claims 1 to 6, a pocket that can be secured to the mounting portion; Equipped with The power supply port is exposed inside the pocket.

8. The pocket is a first bag portion having an opening at its upper edge and a first hole formed in its rear surface through which the main unit can be inserted; an attachment portion receiver provided on the back surface of the first bag portion so as to cover the first hole, the attachment portion receiver having an open lower edge and capable of holding the attachment portion between the first bag portion and the attachment portion; The pocket-type power supply device according to claim 7, further comprising:

9. 9. The pocketed power supply device according to claim 8, wherein the pocket further comprises a second bag portion connected to the first bag portion, capable of being housed within the first bag portion, having an open upper edge and a second hole formed therein that communicates with the power supply port.

10. The power supply device with a pocket according to any one of claims 7 to 9, wherein the bottom is a back bottom.

11. A pocket-type power supply device according to any one of claims 7 to 10; The bed device; A bed device with a power supply device.

12. The bed apparatus with an electric power supply device according to claim 11, wherein a portion of the power cable is disposed below the bottom.

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