JP7784249B2 - Power supply device, pocket-equipped power supply device, and bed device with power supply device - Google Patents

Description

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.

In recent years, some bed devices have been equipped with power supply ports that allow users to charge mobile devices such as smartphones (hereinafter referred to as "smartphones, etc."). Meanwhile, some bed devices have adjustable bottom angles. However, when a power supply port is provided on a bed device with an adjustable bottom angle, there is a problem in that the charging cable for the smartphone, etc., can get caught on various parts of the bed device or on the user when the bottom angle is changed.

Japanese Patent Application Laid-Open No. 2003-159156

An object of an embodiment of the present invention is to provide a power supply device that can be attached to a bed apparatus that includes a bottom with an adjustable angle, a power supply device with a pocket that prevents the charging cable from getting caught, and a bed apparatus with a power supply device.

An embodiment of the power supply device of the present invention is a power supply device that is attached to a bed device having a bottom with an adjustable angle. The power supply device includes a main unit that is attached to the bottom and has a power supply port, and a power cable that is connected at one end to the main unit and supplies power to the main unit.

A pocket-equipped power supply device according to an embodiment of the present invention comprises 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 comprises an attachment part that can be fixed to the bottom, a main unit that can be fixed to the attachment 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 attachment part. The power supply port is exposed inside the pocket.

A bed apparatus with a power supply device according to an embodiment of the present invention comprises the pocket-equipped power supply device and the bed apparatus.

Embodiments of the present invention make it possible to realize a power supply device that can prevent the charging cable from getting caught, a pocket-equipped power supply device, and a bed device with a power supply device.

FIG. 1 is a perspective view showing a bed apparatus with a power supply device according to an embodiment. 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. 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. FIG. 4 is a perspective view showing the mattress stopper of the back bottom. FIG. 5 is a side view showing the pocket-type power supply device according to the embodiment. FIG. 6 is a cross-sectional view showing a pocket-type power supply device according to the embodiment. FIG. 7 is a perspective view showing the attachment portion of the power supply device according to the embodiment, as viewed from the inside. FIG. 8 is a perspective view showing the attachment portion of the power supply device according to the embodiment, as viewed from the outside. 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. FIG. 10 is a perspective view showing the main unit of the power supply device according to the embodiment, as viewed from the outside. FIG. 11 is a perspective view showing the mattress stopper of the bed apparatus and the attachment portion of the power supply apparatus as viewed 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. 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.

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 "lower 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 also referred to as the "outside," and the direction from the left or right side toward the center of the bed apparatus is also referred to as the "inside."

<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 the state in which the bed frame and the bottom are tilted in the bed apparatus with a power supply device according to this embodiment.

As shown in FIGS. 1 to 3, a bed apparatus with a power supply device 200 includes a bed apparatus 100 and a pocket-type power supply device 50 .
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.

The bed device 100 comprises a base 110 placed on the floor or the like, a bed frame 120 mounted on the base 110, a bottom 130 mounted 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 bottom 130, a power supply unit 180 that supplies power to the actuator 170, and a controller 190.

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 has a power terminal that supplies power to the actuators 170, as well as at least one power terminal that can output power.

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. The back bottom 131, waist bottom 132, knee bottom 133, and foot bottom 134 each have a bottom body 135 made of metal such as iron and extending in the width direction W, and bottom edges 136 made of resin attached to both widthwise ends of the bottom body 135.

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.

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 of the bottom edge 136 of the foot bottom 134 on the foot side. Mattress stoppers 137 and 138 are made of, for example, resin.

FIG. 4 is a perspective view showing the mattress stopper of the back bottom.
As shown in Figure 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.

The vertical portion 137c is generally trapezoidal and plate-like. 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 top surface of the mattress 300. The upper part of the mattress stopper 137 is inclined toward the inside of the power supply device-equipped bed device 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.

A pocket-equipped power supply device 50 is attached to either the left or right mattress stopper 137 of the pair of mattress stoppers 137 attached to the back bottom 131. Note that 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 is described below.

<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 a pocket-type power supply device according to this embodiment.

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 portion 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.

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

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 the power terminal of the power supply unit 180 of the bed device 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.

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.

As shown in FIG. 7 , the mounting portion 30 is integrally formed from, for example, resin. The mounting portion 30 includes a base portion 31 extending along an LV plane parallel to the longitudinal direction L and the vertical direction V. The upper portion of the base portion 31 includes a pair of corners 32 extending on both sides in the longitudinal direction L. A pair of holding portions 33 extending toward the inside of the bed apparatus 100 is provided at the center of the base portion 31 in the vertical direction V and at both ends in the longitudinal direction L. The distance between the pair of holding portions 33 decreases upward. The tips of the pair of holding portions 33 include 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.

A pair of guide portions 34 are provided on the surface of the base 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 in the vertical direction V. The upper end of each guide portion 34 is provided with an extension portion 34a that extends toward the inside of the bed apparatus 100, and the lower end of each guide portion 34 is provided with an extension portion 34b that extends toward the inside of the bed apparatus 100. A groove 35 is provided in the center of the longitudinal direction L at the bottom of the base portion 31.

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 device 100. The interior 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 at the bottom of the recess 36. The through-hole 37 is connected to the groove 35.

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.

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

The circuit housing 12 extends from the fixed part 11 to the outside of the bed apparatus 100. The circuit housing 12 is, for example, approximately rectangular in shape. The circuit housing 12 is arranged so as to cover the opening 13 of the fixed part 11. A circuit 15 is provided within the circuit housing 12. The circuit 15 is connected to one end of the 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.

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 USB (Universal Serial Bus) port. The power supply port 16 is covered by an openable cover 17. When the cover 17 is closed, the power supply port 16 is protected from the outside. By opening the cover 17, the power supply port 16 becomes accessible.

Next, the relationship between the components will be described.
FIG. 11 is a perspective view showing the mattress stopper of the bed apparatus and the attachment portion of the power supply apparatus as viewed 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.

As shown in Figures 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 with the screw 14. This secures the main unit 10 to the mounting portion 30. At this time, the mounting portion 30, fixing portion 11, and circuit housing portion 12 form a substantially continuous housing, 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 its 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.

Next, we will explain how to attach the power supply device 1 to the mattress stopper 137. 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 retaining portions 33 of the mounting portion 30. The vertical portion 137c is generally trapezoidal in shape, and the distance between the pair of retaining portions 33 becomes shorter as it extends upward. Therefore, when the mounting portion 30 is lowered to a predetermined position, the pair of retaining 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 retaining 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.

The locking portion 33a abuts against the inner surface of the vertical portion 137c of the mattress stopper 137, and the extension portions 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 positioned so that they 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.

To remove the power supply device 1 from the mattress stopper 37, 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 will also come off the mattress stopper 137. For example, if 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 them in a direction 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 allow the pair of holding portions 33 to be easily deformed, 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 constant shape under normal conditions (when there is no external load), and that such a material is preferably polypropylene (PP), polyethylene (PE), polyamide (PA), polyacetal (POM), or ABS resin, for example.

By providing an 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 movement 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 movement 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, ensuring that the mounting portion 30 can be reliably detached from the mattress stopper 137 before it is damaged. Thus, 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, preventing damage.

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.

The first bag section 41 is the main storage section of the pocket 40. For example, a user can store a smartphone, glasses, etc. in the first bag section 41. The shape of the first bag section 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 roughly rectangular parallelepiped that is longest in the length direction L and shortest in the width direction W.

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 longitudinal direction L. The surface 41a, bottom surface 41c, and 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 side surfaces 41d do not have 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.

The second bag portion 42 is a secondary storage section of the pocket 40. The second bag portion 42 can store a charging cable 400 for a user's smartphone or other device. 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. Note that the second bag portion 42 is a bag without a gusset, but 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 sewn to the upper portion of the back surface 41b of the first bag portion 41. 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.

The attachment portion receiver 43 is made of a single piece of fabric 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 also be formed from a single piece of fabric. When viewed from inside the bed apparatus 100, the attachment portion receiver 43 has, for example, a rectangular shape. The 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, for example, by sewing. The lower edge 43c of the attachment portion receiver 43 is not attached to the back surface 41b of the first bag portion 41. This forms a bag 46 with an open lower edge 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.

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 within 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. This exposes the power supply port 16 inside the pocket 40.

As described above, power is supplied from the power supply unit 180 of the bed device 100 to the main unit 10 of the power supply device 1 via the power cable 20. Most of the power cable 20 is located below the bottom 130, and is fixed to the underside of the bed frame 120 and 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 back bottom 131. For this reason, the power frame 20 will inevitably sag, but because this slack occurs below the bottom 130, it is easy to manage.

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 in place by the groove 35 in 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 in the fixing portion 11 of the main unit 10, and is connected to the circuit 15.

The main unit 10 has its inner portion positioned between the attachment portion receptacle 43 of the pocket 40 and the first pouch portion 41, and is inserted through the first hole 44 on the back surface 41b of the first pouch portion 41, with its outer portion positioned inside the first pouch portion 41. As a result, the power supply port 16 of the main unit 10 is exposed inside the first pouch portion 41.

Electrodes are supplied from the power supply port 16 of the main unit 10 to the user's smartphone or other device 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 on the back surface 42b of the second pouch 42 and is introduced into the second pouch 42. When in use, the charging cable 400 is pulled upward from the second pouch 42, and the other end 402 is connected to the smartphone or other device.

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

Next, a method of using the pocket-type power supply device 50 will be described.
When a user on the bed device 100 wants to use 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.

When the user wishes to use a smartphone or other device without charging it, the terminal 402 of the charging cable 400 is removed from the smartphone or other device and the charging cable 400 is stored in the second pouch portion 42 of the pocket 40.

When the user wishes to charge a smartphone or other device without using it, the user stores the smartphone or other device in the first pouch portion 41 while leaving the terminal 402 of the charging cable 400 connected to the smartphone or other device.

When the user will not be using or charging a smartphone or other device, they remove the terminal 402 of the charging cable 400 from the smartphone or other device, store the charging cable 400 in the second pouch portion 42 of the pocket 40, and store the smartphone or other device in the first pouch portion 41.

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. The user can also store personal items such as glasses in the first pouch 41.

Next, the effects of this embodiment will be described.
As shown in Figures 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 expands 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 convenience for the user.

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 to follow the back bottom 131. Therefore, even if the angle of the back bottom 131 changes while a user on the bed apparatus 100 has connected a charging cable 400 for a smartphone or the like to the power supply port 16, the relative positions of the power supply port 16 and the smartphone or the like do not change, making it less likely that the charging cable 400 will get caught on parts of the bed apparatus 100 or on the user, or that the charging cable 400 will become too stretched.

In this embodiment, a portion of the power cable 20 is positioned below the back bottom 131. Because the relative positions of the main unit 10 and the power supply unit 180 change when the angle of the back bottom 131 changes, 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 external 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 device 200 can appropriately manage the behavior of the power cable 20 as the angle of the bed frame 120 and back bottom 131 changes.

In contrast, 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 angle of the bed frame 120 and back bottom 131 changed. Furthermore, since the power supply port is connected to a smartphone or other device via a charging cable, it is difficult to manage. This makes it easy for the charging cable to get caught on parts of the bed device 100 or on the user, or for the charging cable to become too stretched.

In this embodiment, the power supply port 16 is located on the downward-facing surface of the main unit 10. This protects the power supply port 16 from dust and liquids that may fall from above. Furthermore, the power supply port 16 is covered by the cover 17, which provides more effective protection for the power supply port 16.

The main unit 10 is fixed to the back bottom 131 by fixing the mounting portion 30 to the mattress stopper 137. The mattress stopper 137 is a component provided to prevent the main unit and mattress 300 from shifting. As such, according to this embodiment, the main unit 10 can be fixed to the back bottom 131 using the existing mattress stopper 137, so the cost increase caused by providing the pocket-equipped power supply device 50 is small.

In addition, because the upper end of the mattress stopper 137 is located below the top surface of the mattress 300, the upper end of the pocketed power supply device 50 is also located below the top surface of the mattress 300. This means that when the user sits on the edge of the mattress 300, the pocketed power supply device 50 does not get in the way.

By forming the mounting portion 30 from resin, it can be deformed appropriately by applying force. Furthermore, by configuring the mounting portion 30 and mattress stopper 137 as described above, the pocket-equipped power supply device 50 can be easily attached to and detached from the bed apparatus 100 without the use of tools. As a result, the pocket-equipped 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 of the pocket-equipped power supply device 50 can be switched between left and right.

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. Furthermore, 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 it is placed in the pocket 40.

By providing the attachment portion receiver 43 on the pocket 40, the pocket 40 can be secured to the attachment portion 30 and mattress stopper 137 with a simple structure. Furthermore, because the attachment portion receiver 43 covers the attachment portion 30 and mattress stopper 137, the attachment portion 30 and mattress stopper 137 are protected and the design is highly aesthetic.

In this embodiment, a second pouch portion 42 is provided within the first pouch portion 41, and a second hole 45 that communicates with the power supply port 16 is formed in the second pouch portion 42, allowing the charging cable 400 to be pulled into the second pouch portion 42. This allows the charging cable 400 to be stored separately from a smartphone, eyeglasses, etc. As a result, it is possible to prevent the charging cable 400 from interfering with a smartphone, eyeglasses, etc., and to prevent the charging cable 400 from becoming tangled with eyeglasses, etc., or causing the eyeglasses, etc., to fall out of the pocket 40 when attempting to pull the charging cable 400 out of the pocket 40.

By storing the charging cable 400 inside 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.

The above-described embodiment is an example of how the present invention is realized, and the present invention is not limited to this embodiment. For example, the present invention also includes embodiments in which some components or steps are added, deleted, or modified.

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

Claims (12)

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. 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. The power supply device according to claim 1 or 2, wherein the power supply port is located on a downward-facing surface of the main unit. the attachment portion is deformable;
The power supply device according to any one of claims 1 to 3, which can be retrofitted to the bed device . The mattress stopper has a vertical portion extending in a first direction away from the bottom and along a second direction in which an end of the bottom extends, and the length of the vertical portion in the second direction decreases as the mattress stopper moves away from the bottom;
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. The power supply device according to claim 1, wherein an upper end of the power supply device is positioned below an upper surface of a mattress when the power supply device is attached to the bed device. 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. 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. 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. The power supply device with a pocket according to any one of claims 7 to 9 , wherein the bottom is a back bottom. 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. 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.