JP7725438B2 - Bed device - Google Patents

Description

The present invention relates to a bed device.

One known example of a bed device is one that includes a bed frame and board members (e.g., a headboard and a footboard) that are attached to the bed frame. Various proposals have been made regarding the attachment of the bed frame and board members.

The board locking mechanism for a bed disclosed in Patent Document 1 has a board holder for attaching a board to the longitudinal end of the bed's main frame, and a locking fixture on the board side for locking it to the board holder. The board holder has a pair of protruding bosses, and the locking fixture has a pair of hook-shaped members that lock onto the pair of bosses on the board holder from above. A stopper is provided on the locking fixture by a biasing means, which can rotate to lock or release the boss when it is locked onto one of the hook-shaped members. The stopper rotates around the pivot point. The device has an extending first arm, a second arm, and a lever portion for rotating the stopper against the biasing force of the biasing means. The first arm and second arm are spaced apart on their surfaces by a distance narrower than the inner recess of the hook-shaped member. When the lever portion is displaced under the bias of the biasing means to a position that releases the constraint on the boss, the tip of the second arm protrudes into the inner recess of the hook-shaped member. An inner wall is formed on the surface of the first arm facing the locking fitting so that the boss can be guided into the inner locking portion of the hook-shaped member. The distance between this inner wall and the tip of the second arm is set slightly larger than the diameter of the boss.

Patent No. 2868119

Even with the board locking mechanism for the bed disclosed in Patent Document 1, there is still room for improvement in various aspects of the bed apparatus. Assembling and disassembling the bed apparatus requires a lot of time and effort. For example, there is a demand for easier attachment and detachment of the board member to and from the bed frame.

Therefore, one of the objects of the present invention is to provide a bed apparatus that allows efficient attachment and detachment of board members to and from a bed frame.

In one embodiment, the bed apparatus comprises a bed frame that is long in the longitudinal direction, a board member that is detachably attached to one longitudinal end of the bed frame, a first attachment member that is provided at the one longitudinal end of the bed frame, a second attachment member that is provided on the board member and attaches to the first attachment member, a lever member that is provided on one of the bed frame and the board member and has a through hole, and a protruding member that is provided on the other end of the bed frame and the board member that does not have the lever member and protrudes toward the lever member, and a support mechanism that supports the lever member so that, when the second attachment member is attached to the first attachment member, the protruding member passes through the through hole and locks the board member to the bed frame, and a second position where the through hole is separated from the protruding member and unlocks the board member from the bed frame.

The support mechanism may include an elastic member that biases the lever member toward the first position.

The second mounting member may be attached to the first mounting member by sliding it vertically, and when the second mounting member is slid relative to the first mounting member from a state in which the second mounting member is not attached to the first mounting member, the lever member may be displaced from the first position to the second position as the protruding member comes into contact with the lever member, and when the second mounting member is attached to the first mounting member, the lever member may be displaced to the first position, locking the board member to the bed frame.

The lever member may be supported by the support mechanism so as to be rotatable between the first position and the second position around a rotation axis extending in a direction intersecting the vertical direction.

The lever member may further have a tapered portion located above the through hole and inclined so that the distance between the bed frame and the other of the board members on which the lever member is not provided increases as the lever member approaches the upper end of the lever member.

When the second mounting member is slid relative to the first mounting member from a state in which the second mounting member is not attached to the first mounting member, the lever member may be displaced from the first position toward the second position as the protruding member comes into contact with the tapered portion.

The support mechanism may further include a holding member attached to the lever member. When the lever member is in the second position, the holding member may hold the lever member against the other of the bed frame and the board member that does not have the protruding member.

The present invention provides a bed apparatus that allows efficient attachment and detachment of board members to and from a bed frame.

FIG. 1 is a schematic perspective view of a bed apparatus according to one embodiment. FIG. 2 is a schematic perspective view showing a portion of the bed frame shown in FIG. FIG. 3 is a schematic perspective view showing a part of the bed apparatus according to one embodiment. FIG. 4 is a schematic perspective view showing a part of the bed apparatus according to one embodiment. FIG. 5 is a schematic perspective view of an attachment mechanism according to one embodiment. FIG. 6 is a schematic perspective view of a portion of an attachment mechanism according to one embodiment. FIG. 7 is a schematic front view of a portion of an attachment mechanism according to one embodiment. FIG. 8 is a schematic side view of a portion of an attachment mechanism according to one embodiment. FIG. 9 is a schematic perspective view of a portion of an attachment mechanism according to one embodiment. FIG. 10 is a diagram illustrating the operation of the lever member according to one embodiment. FIG. 11 is a diagram illustrating the operation of the lever member according to one embodiment.

An embodiment will be described with reference to the drawings.
In this embodiment, an electric bed capable of raising and lowering and deforming a bed platform is disclosed as an example of a bed apparatus. However, the configuration disclosed in this embodiment, particularly the structure relating to the connection between various members, can also be applied to other types of bed apparatus, such as bed apparatuses that do not have electrical control elements.

Figure 1 is a schematic perspective view of a bed apparatus 1 according to this embodiment. Figure 2 is a schematic perspective view showing a portion of the bed frame 2 shown in Figure 1. In the following description, the longitudinal direction X, width direction Y, and vertical direction Z are defined as shown in the figure. In this embodiment, these directions X, Y, and Z are perpendicular to one another. Furthermore, in this embodiment, the vertical direction Z is defined as up or upward, and the direction opposite the vertical direction Z is defined as down or downward.

As shown in FIG. 1, the bed apparatus 1 comprises a bed frame 2, a bed plate 10 placed on the bed frame 2, and a plurality of leg members 3 attached to the bed frame 2. Both the bed frame 2 and the bed plate 10 have an elongated shape in the longitudinal direction X.

The bed frame 2 comprises a lower frame 201 and an upper frame 202 aligned in the vertical direction Z. Both the lower frame 201 and the upper frame 202 have an elongated shape in the longitudinal direction X.

The bed plate body 10 includes a back plate 10A, a lumbar plate 10B, a thigh plate 10C, and a foot plate 10D. The back plate 10A, the lumbar plate 10B, the thigh plate 10C, and the foot plate 10D are aligned in this order in the longitudinal direction X. Adjacent two of these plates 10A, 10B, 10C, and 10D are connected so that they can rotate about an axis parallel to the width direction Y. When the bed device 1 is in use, a mattress is placed on the bed plate body 10.

The bed apparatus 1 further includes a drive mechanism (not shown) disposed below the bed plate body 10. The drive mechanism includes, for example, multiple motors and multiple links for transmitting the power of these motors, and raises and lowers the bed plate body 10. The drive mechanism includes, for example, an elevation mechanism that moves the upper frame 202 relative to the lower frame 201 in the vertical direction Z.

Furthermore, the drive mechanism transforms the base plate body 10 from a flat state as shown in Figure 1 into a predetermined shape. Examples of predetermined shapes include a back-raised state in which the back plate 10A is raised, and a leg-raised state in which at least one of the thigh plate 10C and foot plate 10D is raised.

As shown in FIG. 1, the bed apparatus 1 further includes a headboard 4 and a footboard 5. The headboard 4 and footboard 5 correspond to board members. The headboard 4 is disposed at the head-side end of the bed frame 2 in the longitudinal direction X. The footboard 5 is disposed at the leg-side end of the bed frame 2 in the longitudinal direction X.

As shown in FIG. 2, the bed frame 2 further includes, for example, a head frame 6 and an extension frame 7. The head frame 6 and extension frame 7 are located closer to the head in the longitudinal direction X than the upper frame 202.

The head frame 6 supports the back panel 10A (shown in Figure 1) of the bed panel body 10. The extension frame 7 adjusts the length of the bed frame 2 in the longitudinal direction X according to its position in the longitudinal direction X relative to the head frame 6.

The extension frame 7 comprises frame members 71, 72 and a crossbeam 73. The frame members 71, 72 extend in the longitudinal direction X and are aligned in the width direction Y. The crossbeam 73 connects the frame members 71, 72. The crossbeam 73 extends linearly in the width direction Y.

The bed frame 2 also has an extension frame 8 (shown in Figure 4) on the footboard 5 side. The extension frame 8 is configured, for example, in the same way as the extension frame 7. That is, the extension frame 8 includes frame members 71 and 72 and a crosspiece 73.

Figures 3 and 4 are schematic perspective views showing a portion of the bed apparatus 1 according to this embodiment. Figure 3 shows the headboard 4 and its surroundings in the bed apparatus 1. Figure 4 shows the footboard 5 and its surroundings in the bed apparatus 1.

As shown in Figure 3, the headboard 4 is attached to one end of the extension frame 7 in the longitudinal direction X. One end of the extension frame 7 in the longitudinal direction X corresponds to one end of the bed frame 2 in the longitudinal direction X.

The headboard 4 is removably attached, for example, to the extension frame 7 of the bed frame 2. As shown in Figure 4, the footboard 5 is attached to one end of the extension frame 8 in the longitudinal direction X. The footboard 5 is removably attached, for example, to the extension frame 8.

More specifically, the headboard 4 is attached to the extension frame 7 via two attachment mechanisms 100 aligned in the width direction Y. Similarly, the footboard 5 is attached to the extension frame 8 via two attachment mechanisms 100 aligned in the width direction Y.

The following mainly describes the attachment mechanism 100 located on the headboard 4 side.
Fig. 5 is a schematic perspective view of the attachment mechanism 100 according to this embodiment. Fig. 6 is a schematic perspective view showing a portion of the attachment mechanism 100 according to this embodiment. Fig. 7 is a schematic front view showing a portion of the attachment mechanism 100 according to this embodiment. Fig. 8 is a schematic side view showing a portion of the attachment mechanism 100 according to this embodiment. Fig. 9 is a schematic perspective view showing a portion of the attachment mechanism 100 according to this embodiment. Figs. 5 to 9 show the vicinity of the end of the frame member 71 of the extension frame 7 on the headboard 4 side. Fig. 8 shows a portion in cross section.

As shown in FIG. 5, the bed apparatus 1 further includes a first mounting member 20, a second mounting member 30, a fixed plate 40, a lever member 50, a support mechanism 60, and a pin 70. The pin 70 is an example of a protruding member.

The mounting mechanism 100 is composed of, for example, a first mounting member 20, a second mounting member 30, a fixed plate 40, a lever member 50, a support mechanism 60, and a pin 70, but may also include other elements.

As shown in Figure 3, the two first mounting members 20 are aligned in the width direction Y relative to the bed frame 2. As shown in Figures 6 to 8, the first mounting members 20 are provided at one end of the frame material 71 in the longitudinal direction X. The first mounting members 20 are formed, for example, from a metal material, but may also be formed from other materials such as a resin material.

The first mounting member 20 is formed from a plate material. When viewed in the direction opposite the longitudinal direction X, the first mounting member 20 has a generally rectangular shape. The first mounting member 20 extends elongatedly in the vertical direction Z, for example. The first mounting member 20 has a first portion 21 connected to the frame material 71 and a second portion 22 connected to the lower end of the first portion 21.

The first portion 21 faces the headboard 4. The first portion 21 is, for example, substantially parallel to the Y-Z plane defined by the width direction Y and the vertical direction Z. The second portion 22 is, for example, substantially parallel to the X-Y plane defined by the longitudinal direction X and the width direction Y. The length of the width direction Y of the first portion 21 is, for example, smaller than the length of the width direction Y of the second portion 22, but is not limited to this example.

As shown in Figures 6 to 8, the fixing plate 40 is attached to the frame material 71. The first mounting member 20 and the fixing plate 40 are aligned in this order in the longitudinal direction X. The fixing plate 40 is located, for example, between the first mounting member 20 and the horizontal beam 73 in the longitudinal direction X.

The fixing plate 40 is formed from a plate material. For example, the fixing plate 40 extends longitudinally in the width direction Y. The fixing plate 40 extends from the frame material 71 in the direction opposite to the width direction Y.

The fixing plate 40 has a through hole 41 (shown in Figure 8) and a slit 42. The through hole 41 and the slit 42 are aligned in this order in the width direction Y. The through hole 41 and the slit 42 pass through the fixing plate 40.

As shown in Figures 6 to 8, the lever member 50 is attached to the frame member 71 via the fixed plate 40. The lever member 50 and frame member 71 are aligned in this order in the width direction Y.

The lever member 50 is formed, for example, from a metal material, but may also be formed from other materials such as a resin material. The lever member 50 is formed from a plate material. The lever member 50 extends elongatedly in the vertical direction Z, for example.

The lever member 50 has surfaces 51 and 52, through holes 53, 54, and 55, a tapered portion 56, and a claw portion 57. Surface 51 faces the headboard 4, and surface 52 is the surface opposite surface 51. Surface 51 contacts the fixed plate 40.

As shown in Figure 8, through holes 53, 54, and 55 penetrate through surfaces 51 and 52. Through holes 53, 54, and 55 are aligned in this order in the vertical direction Z. Through hole 54 overlaps with through hole 41 of fixing plate 40 in the longitudinal direction X.

In the example shown in Figure 7, the through hole 55 is a long hole that is elongated in the width direction Y. The through hole 55 may be circular, rectangular, or another shape. As shown in Figure 5, a pin 70 is passed through the through hole 55.

The tapered portion 56 is located above the through hole 55. From another perspective, the tapered portion 56 is located above the first mounting member 20, as shown in Figures 6 to 8. The tapered portion 56 includes the upper end 561 of the lever member 50. The tapered portion 56 is inclined with respect to the vertical direction Z. More specifically, the tapered portion 56 is inclined along the vertical direction Z so that the surface 51 is away from the headboard 4.

The claw portion 57 is provided on the side end of the lever member 50 on the frame member 71 side. As shown in Figure 6, the claw portion 57 is passed through the slit 42 of the fixed plate 40 and protrudes toward the headboard 4. By passing the claw portion 57 through the slit 42 of the fixed plate 40, movement and tilting of the lever member 50 in the width direction Y are restricted.

The support mechanism 60 supports the lever member 50 relative to the fixed plate 40. The support mechanism 60 includes fixed members 61 and 62, an elastic member 63, and a retaining member 64.

The fixing member 61 includes, for example, a bolt 611 and a nut 612. As shown in FIG. 8 , the bolt 611 is passed through the through-hole 54 of the lever member 50 and the through-hole 41 of the fixing plate 40 from the direction opposite to the longitudinal direction X.

The nut 612 is connected to the bolt 611 in the longitudinal direction X, sandwiching the fixed plate 40 and the lever member 50 between them. This supports the lever member 50 relative to the fixed plate 40.

The elastic member 63 is located below the through-hole 55. The elastic member 63 is located between the lever member 50 and the head portion 6111 of the bolt 611 (shown in Figure 8). The elastic member 63 is, for example, a spring, but is not limited to this example.

The spring is, for example, a coil spring. The spring is made of, for example, a metal material, but may be made of other materials. A flat washer 65 may be provided between the elastic member 63 and the lever member 50. This allows the elastic member 63 to stably bias the lever member 50.

In the example shown in Figure 8, the bolt 611 has a stepped portion 6112. The bolt 611 is positioned relative to the fixed plate 40 by the stepped portion 6112. This makes it possible to adjust, for example, the position of the bolt 611 relative to the lever member 50 or the biasing force of the elastic member 63.

In the example shown in FIG. 8, the holding member 64 is provided on the surface 51 of the lever member 50. The holding member 64 is located below the through-hole 54 and the fixing member 61. The holding member 64 is, for example, an adhesive member. One example of an adhesive member is a magnet. The holding member 64 has, for example, a disk shape, but is not limited to this example. The end surface 641 of the holding member 64 facing the headboard 4 is, for example, substantially parallel to the Y-Z plane.

The fixing member 62 includes, for example, a bolt 621 and a nut 622. As shown in FIG. 8 , the bolt 621 is passed through a through-hole 642 formed in the holding member 64 and through the through-hole 53 of the lever member 50 in the longitudinal direction X. The nut 622 is connected to the bolt 621 from the direction opposite the longitudinal direction X, sandwiching the lever member 50 therebetween.

As a result, the retaining member 64 is fixed to the lever member 50. In the example shown in Figure 8, the head portion of the bolt 621 does not protrude beyond the retaining member 64 in the direction opposite the longitudinal direction X.

The second mounting member 30 is attached to the first mounting member 20. The headboard 4 is attached to the bed frame 2 by attaching the second mounting member 30 to the first mounting member 20. The two second mounting members 30 are aligned in the width direction Y, as shown in Figure 3.

As shown in Figures 5 and 9, the second mounting member 30 is provided on the headboard 4. The second mounting member 30 is formed, for example, from a metal material, but may also be formed from other materials such as a resin material.

The second mounting member 30 is formed from a plate material. When viewed in the direction opposite the longitudinal direction X, the second mounting member 30 has a generally rectangular shape. The second mounting member 30 has a base portion 31, a protrusion 32, and a notch portion 33.

The second mounting member 30 is fixed to the headboard 4, for example, by four screws 80 via the base portion 31. The base portion 31 has through holes for the screws 80 to pass through. The base portion 31 has a surface 311. The surface 311 faces the lever member 50.

The protrusion 32 protrudes further in the longitudinal direction X than the base portion 31. In the example shown in Figure 9, the protrusion 32 has a generally rectangular shape when viewed in the direction opposite the longitudinal direction X. The protrusion 32 is located in the center of the second mounting member 30 in the width direction Y.

As shown in Figure 9, a gap G is formed between the headboard 4 and the protrusion 32. The gap G opens downward. The gap G is large enough to accommodate the first portion 21 of the first mounting member 20. The gap G has, for example, a generally rectangular parallelepiped shape that is elongated in the longitudinal direction X. The shape of the gap G can be changed as appropriate depending on the shape of the first mounting member 20, etc.

The cutout 33 is located in the center of the protrusion 32 in the width direction Y. The cutout 33 is elongated in the longitudinal direction X. The cutout 33 opens downward. The gap G and the cutout 33 are connected.

As shown in Figure 5, when the second mounting member 30 is attached to the first mounting member 20, the first portion 21 of the first mounting member 20 is positioned in the gap G, and the end of the frame material 71 is positioned in the cutout portion 33. In the example shown in Figure 5, the lower end 321 of the second mounting member 30 is in contact with the upper surface 221 of the second portion 22 of the first mounting member 20.

In the example shown in Figures 5 and 9, the pin 70 is attached to the headboard 4 via the second attachment member 30. In this embodiment, the headboard 4 corresponds to the other side of the bed frame 2 that is not provided with the lever member 50.

The pin 70 is provided on the surface 311 of the base portion 31. The pin 70 and the protrusion 32 are aligned in this order in the width direction Y. The position of the pin 70 in the width direction Y and the vertical direction Z can be changed as appropriate depending on the position of the lever member 50.

The pin 70 is formed, for example, from a metal material, but may also be formed from other materials such as a resin material. The pin 70 is formed, for example, from the same material as the second mounting member 30. The pin 70 has, for example, a cylindrical shape, but may also have a rectangular prism shape or other shapes.

The pin 70 protrudes toward the lever member 50. In the example shown in Figure 9, the pin 70 protrudes in the longitudinal direction X. The pin 70 protrudes further than the protrusion 32 of the second mounting member 30.

Figures 6 to 9 explain the mounting mechanism 100 on the frame member 71 side of the extension frame 7, but the mounting mechanism 100 on the frame member 72 side of the extension frame 7 also has a similar configuration.

That is, the attachment mechanism 100 on the frame member 72 side of the extension frame 7 includes a first attachment member 20, a second attachment member 30, a fixed plate 40, a lever member 50, a support mechanism 60, and a pin 70. The attachment mechanism 100 on the frame member 72 side has a structure that is plane-symmetrical with respect to the X-Z plane defined by the longitudinal direction X and the vertical direction Z, relative to the attachment mechanism 100 on the frame member 71 side.

In the mounting mechanism 100 on the frame material 72 side, the first mounting member 20 is provided at one end of the frame material 72, and the fixing plate 40 is provided on the frame material 72 and extends from the frame material 72 in the width direction Y.

In the mounting mechanism 100 on the frame material 72 side, the lever member 50 is attached to the frame material 72 via the fixed plate 40. In the mounting mechanism 100 on the frame material 72 side, the claw portion 57 of the lever member 50 is provided on the side end of the lever member 50 facing the frame material 72.

When the second mounting member 30 is attached to the first mounting member 20 in the mounting mechanism 100 on the frame material 72 side, the first portion 21 of the first mounting member 20 is positioned in the gap G, and the end of the frame material 72 is positioned in the cutout portion 33.

Next, we will explain how to attach and remove the headboard 4 to the bed frame 2. Figures 10 and 11 show the operation of the lever member 50 in this embodiment.

First, the position of the lever member 50 will be described.
10 , the support mechanism 60 supports the lever member 50 so that it can be displaced between a first position P1 and a second position P2. The lever member 50 is rotatable about a rotation axis extending in the width direction Y by a fixed member 61 and an elastic member 63 of the support mechanism 60. The width direction Y is an example of a direction intersecting with the longitudinal direction X.

As a result, the lever member 50 is displaced between the first position P1 and the second position P2. In Figure 10, the lever member 50 in the first position P1 is shown by a solid line, and the lever member 50 in the second position P2 is shown by a dashed line.

In the example shown in FIG. 5, the lever member 50 is at a first position P1. At the first position P1, the lever member 50 extends, for example, along the vertical direction Z. When the second mounting member 30 is attached to the first mounting member 20, a pin 70 is inserted through the through hole 55 at the first position P1. As shown in FIG. 10, the pin 70 has a length that allows it to protrude in the longitudinal direction X beyond the through hole 55 of the lever member 50.

In the first position P1, the pin 70 is passed through the through-hole 55, locking the headboard 4 relative to the bed frame 2. Here, "locked" means, for example, that sliding of the headboard 4 relative to the bed frame 2 in a direction parallel to the vertical direction Z is restricted.

Sliding in a direction parallel to the vertical direction Z refers to, for example, moving upward or downward. The second mounting member 30 is attached to the first mounting member 20 by sliding in a direction parallel to the vertical direction Z.

For example, at the second position P2, the lever member 50 is tilted with respect to the vertical direction Z. As the lever member 50 tilts, the through hole 55 moves away from the pin 70 in the longitudinal direction X. At the second position P2, the pin 70 is not inserted through the through hole 55.

In the second position P2, the pin 70 is not passed through the through-hole 55, so the headboard 4 is unlocked from the bed frame 2. Here, "unlocked" means, for example, that the headboard 4 is not restricted from sliding in a direction parallel to the vertical direction Z relative to the bed frame 2. For example, when the lever member 50 is in the second position P2, the headboard 4 can be moved upward relative to the bed frame 2.

The elastic member 63 biases the lever member 50 toward the first position P1. More specifically, the elastic member 63 biases the lever member 50 toward the fixed plate 40 via the flat washer 65 from the direction opposite the longitudinal direction X. The lever member 50 is held at the first position P1 by the elastic member 63, for example, when the second mounting member 30 is not attached to the first mounting member 20.

The retaining member 64 holds the lever member 50 to the headboard 4 when the lever member 50 is in the second position P2. At this time, the position of the lever member 50 is the second position P2. In the example shown in Figure 10, the retaining member 64 holds the lever member 50 to the headboard 4 via the screw 80.

If the holding member 64 is a magnet, the holding member 64 will be attracted to, for example, the screw 80. In other words, the holding member 64 will come into contact with the screw 80. The member that the holding member 64 is attracted to is not limited to the screw 80, but may also be the second mounting member 30 or another member. The member that the holding member 64 is attracted to is formed, for example, from a material that can attract a magnet.

Next, we will explain how to attach the headboard 4 to the bed frame 2 using Figure 11.

When attaching the headboard 4 to the bed frame 2, the headboard 4 is slid downward relative to the bed frame 2. In other words, the second attachment member 30 is slid downward relative to the first attachment member 20. At this time, the pin 70 provided on the second attachment member 30 slides downward.

The lever member 50 has a tapered portion 56. As shown in FIG. 11 , the tapered portion 56 is inclined so that the distance from the headboard 4 in the longitudinal direction X increases as the lever member 50 approaches the upper end 561.

When the pin 70 slides downward, it comes into contact with the lever member 50. More specifically, the tip of the pin 70 comes into contact with the tapered portion 56. The tip of the pin 70 is chamfered, for example, along the circumferential direction of the pin 70.

When the pin 70 slides downward from this state, the pin 70 pushes the tapered portion 56, causing the lever member 50 to rotate about a rotation axis extending in the width direction Y. More specifically, the lever member 50 rotates from the first position P1 toward the second position P2, thereby displacing the position of the lever member 50. In Figure 11, the lever member 50 is shown by a two-dot chain line as it rotates from the first position P1 toward the second position P2.

If the pin 70 slides further downward from this state, the lever member 50 rotates further about the axis of rotation extending in the width direction Y. This causes the pin 70 to slide further downward while contacting the surface 51 of the lever member 50. As a result, the second mounting member 30 is attached to the first mounting member 20, and when the pin 70 overlaps with the through-hole 55 in the longitudinal direction X, the headboard 4 is attached to the bed frame 2.

At this time, the lever member 50 is released from contact with the pin 70, and the elastic member 63 displaces the lever member 50 to the first position P1. As a result, the lever member 50 locks the headboard 4 to the bed frame 2. Note that the retaining member 64 does not come into contact with the screw 80 when attaching the headboard 4 to the bed frame 2.

Next, we will explain how to remove the headboard 4 from the bed frame 2.

First, the position of the lever member 50 is displaced from the first position P1 to the second position P2 (shown in FIG. 10). At this time, the positions of the lever member 50 located on the frame member 71 side and the lever member 50 located on the frame member 72 side are both displaced. The user can rotate the lever member 50, for example, by pushing the tapered portion 56 in the direction of displacement to the second position P2.

The lever members 50 are held in the second position P2 by the holding members 64. This unlocks the headboard 4 from the bed frame 2. As a result, the headboard 4 can be removed from the bed frame 2 by sliding it upward relative to the bed frame 2.

The headboard 4 and its surrounding structure have been described using Figures 2 to 11, but the footboard 5 and its surrounding structure are similar. That is, the attachment mechanism 100 on the footboard 5 side includes a first attachment member 20, a second attachment member 30, a fixing plate 40, a lever member 50, a support mechanism 60, and a pin 70.

Therefore, the procedures for attaching and detaching the footboard 5 to and from the bed frame 2 are similar to the procedures for attaching and detaching the headboard 4 to and from the bed frame 2, as described with reference to Figures 10 and 11.

With the bed apparatus 1 configured as described above, the board member can be efficiently attached to and detached from the bed frame 2. More specifically, the bed apparatus 1 includes a lever member 50 that is supported by the support mechanism 60 so that it can be displaced between a first position P1 and a second position P2.

In the first position P1, the pin 70 is passed through the through-hole 55 of the lever member 50, locking the headboard 4 to the bed frame 2. In the second position P2, the through-hole 55 of the lever member 50 is separated from the pin 70, unlocking the headboard 4 from the bed frame 2.

In other words, by displacing the lever member 50 between the first position P1 and the second position P2, the headboard 4 can be locked or unlocked relative to the bed frame 2.

This makes it easier for the user to lock and unlock the headboard 4 when attaching and detaching the headboard 4 to and from the bed frame 2. It also reduces the time required for the user to lock and unlock the headboard 4. As a result, the bed apparatus 1 according to this embodiment allows the headboard 4 to be attached and detached to and from the bed frame 2 efficiently.

The footboard 5 and its surrounding structure are similar to the headboard 4 and its surrounding structure described with reference to Figures 2 to 11. In other words, with the bed apparatus 1 according to this embodiment, the board members can be attached to and detached from the bed frame 2 efficiently. This reduces the effort and time required for assembling and disassembling the bed apparatus 1.

In this embodiment, the support mechanism 60 has an elastic member 63. The elastic member 63 biases the lever member 50 toward the first position P1, thereby holding the lever member 50 at the first position P1.

In this embodiment, the second mounting member 30 is attached to the first mounting member 20 by sliding it along the vertical direction Z. When the second mounting member 30 is slid relative to the first mounting member 20 from a state in which the second mounting member 30 is not attached to the first mounting member 20, the pin 70 comes into contact with the lever member 50, causing the lever member 50 to displace from the first position P1 toward the second position P2.

More specifically, the lever member 50 is supported by a support mechanism 60 so as to be rotatable between a first position P1 and a second position P2 around a rotation axis extending in the width direction Y, and the lever member 50 has a tapered portion 56. The tapered portion 56 is inclined so that the distance from the headboard 4 in the longitudinal direction X increases as the lever member 50 approaches the upper end 561.

As a result, when the pin 70 slides downward, it comes into contact with the lever member 50. When the pin 70 slides downward from this state, the pin 70 presses against the tapered portion 56 of the lever member 50, causing the lever member 50 to rotate. This allows the pin 70 to slide further downward, and the second mounting member 30 is attached to the first mounting member 20.

In this way, the user can attach the headboard 4 to the bed frame 2 by sliding the headboard 4 downward relative to the bed frame 2 without any special operation.

Furthermore, the lever member 50 is displaced to the first position P1 by the elastic member 63. This allows the user to lock the headboard 4 to the bed frame 2 without any special operation. As a result, the headboard 4 can be attached to the bed frame 2 more efficiently.

In this embodiment, the support mechanism 60 has a holding member 64. The holding member 64 holds the lever member 50 on the headboard 4 when the lever member 50 is in the second position P2.

This allows the user to displace the lever member 50 to the second position P2 in advance, making it easier to attach the headboard 4 to the bed frame 2. In other words, the headboard 4 can be kept unlocked from the bed frame 2.

In this embodiment, two lever members 50 are provided in the width direction Y, but the two lever members 50 can be displaced to the second position P2 using the holding member 64, making it easy for a single user to remove the headboard 4.

In this embodiment, the user can attach and detach the board member to the bed frame 2 without using tools or other equipment.

The above embodiments do not limit the scope of the present invention to the configurations disclosed in the embodiments. The present invention can be implemented by modifying the configurations disclosed in the embodiments in various ways.

In this embodiment, the bed apparatus 1 is illustrated as including a headboard 4 and a footboard 5. As another example, the bed apparatus 1 may not include at least one of the headboard 4 and the footboard 5.

In this embodiment, the pin 70 is provided on the board member and the lever member 50 is provided on the bed frame 2, but the pin 70 may also be provided on the bed frame 2 and the lever member 50 may also be provided on the board member.

In this embodiment, the pin 70 is provided on the base portion 31 of the second mounting member 30, but the pin 70 may also be provided on the protrusion 32 of the second mounting member 30, or on another portion of the headboard 4. The position at which the lever member 50 is provided can be changed as appropriate depending on the position at which the pin 70 is provided. In this embodiment, the elastic member 63 is a spring, but the elastic member 63 may also be rubber or the like.

In this embodiment, the retaining member 64 holds the lever member 50 to the headboard 4 via the screw 80, but the retaining member 64 may also hold the lever member 50 to the headboard 4 via the second mounting member 30, or may hold the lever member 50 directly to the headboard 4.

In this embodiment, the retaining member 64 is a magnet, but the retaining member 64 may be composed of, for example, a pair of members. One of the pair of members may be a male member and the other a female member. When the lever member 50 is provided on the bed frame 2, the female member may be provided on the board member and the male member may be provided on the lever member 50. As another example, the retaining member 64 may be a hook-and-loop fastener.

In this embodiment, the portion of the lever member 50 where the holding member 64 is provided extends along the vertical direction Z, but the shape may be modified as appropriate to make it easier for the holding member 64 to hold the lever member 50 at the second position P2. For example, the lower end side of the lever member 50 may be inclined so that the end surface 641 of the holding member 64 and the surface 311 are parallel at the second position P2.

The first position P1 and second position P2 of the lever member 50 in this embodiment are merely examples. The first position P1 is, for example, a position where the board member is locked to the bed frame 2, and the lever member 50 may be inclined relative to the vertical direction Z at the first position P1. The second position P2 is, for example, a position where the board member is unlocked from the bed frame 2, and the lever member 50 may be inclined relative to the vertical direction Z at an angle different from that in the above example at the second position P2.

1...bed device, 2...bed frame, 4...headboard, 5...footboard, 10...bedboard body, 20...first mounting member, 30...second mounting member, 40...fixing plate, 50...lever member, 53, 54, 55...through hole, 56...tapered portion, 60...support mechanism, 63...elastic member, 64...retaining member, 70...pin.

Claims (6)

A bed frame that is long in the longitudinal direction,
A board member detachably attached to one end of the bed frame in the longitudinal direction;
a first attachment member provided at one end of the bed frame in the longitudinal direction;
a second mounting member provided on the board member and attached to the first mounting member;
a lever member provided on one of the bed frame and the board member and having a through hole;
a protruding member provided on the other side of the bed frame and the board member where the lever member is not provided, the protruding member protruding toward the lever member;
and a support mechanism that supports the lever member so that the lever member can be displaced between a first position where the protruding member is passed through the through-hole and the board member is locked to the bed frame when the second mounting member is attached to the first mounting member, and a second position where the through-hole is separated from the protruding member and the board member is unlocked from the bed frame.
Bed equipment. The support mechanism has an elastic member that biases the lever member toward the first position.
The bed apparatus according to claim 1 . the second mounting member is attached to the first mounting member by sliding along a vertical direction,
When the second mounting member is slid relative to the first mounting member from a state in which the second mounting member is not attached to the first mounting member, the protruding member comes into contact with the lever member, causing the lever member to displace from the first position toward the second position, and when the second mounting member is attached to the first mounting member, the lever member displaces to the first position, locking the board member relative to the bed frame.
The bed apparatus according to claim 2. the lever member is supported by the support mechanism so as to be rotatable between the first position and the second position around a rotation axis extending in a direction intersecting the vertical direction;
The bed apparatus according to claim 3. The lever member is located above the through hole and further has a tapered portion that is inclined so that the distance between the bed frame and the other of the board members on which the lever member is not provided increases as the lever member approaches an upper end of the lever member,
When the second mounting member is slid relative to the first mounting member from a state in which the second mounting member is not attached to the first mounting member, the lever member is displaced from the first position toward the second position as the protruding member comes into contact with the tapered portion.
The bed apparatus according to claim 4. the support mechanism further includes a holding member provided on the lever member,
When the lever member is in the second position, the holding member holds the lever member on the other of the bed frame and the board member on which the protruding member is not provided.
The bed apparatus according to any one of claims 1 to 5.