JP7206180B2 - bed equipment - Google Patents

Description

The present invention relates to a long bed apparatus that can be used even by tall users.

Hotels sometimes change the number of bed devices installed in guest rooms according to the increase or decrease in the number of overnight guests. For example, when the number of guests staying in one guest room increases, the number of beds installed in the room is increased, and conversely, when the number decreases, unused beds are carried out from the guest room and stored in a predetermined storage room. I try to keep

Therefore, bed apparatuses used for such applications are desired to have a structure that allows easy and quick cleaning when not in use.

On the other hand, recently there have been an increasing number of tall foreigners as guests. Therefore, when such a foreigner stays, it is necessary to prepare a bed system longer than a normal bed system so that the feet do not protrude from the end of the mattress in the longitudinal direction and the sleeping comfort is not impaired. is occurring.

However, if the length of the bed apparatus is lengthened to suit tall users, the number of bed apparatuses must also be reduced when the number of guests staying in one guest room decreases.

In this case, even if the bed apparatus is placed in an upright position by the casters attached to one end in the longitudinal direction and transported while traveling to be carried into the storage room, the height dimension is higher than the height of the entrance of the storage room. In some cases, it is difficult to carry it into the room because it is too tall, and it is difficult to handle because the height dimension is too high.

Therefore, conventionally, as a bed apparatus that can be used even by tall users as described above, the bed frame constituting the bed apparatus is made long for tall people as shown in Patent Document 1, and the bed frame is made long. It is divided into two at the central portion in the longitudinal direction, and these divided frames are rotatably connected.

When used as a bed device, the two divided bed frames are horizontally unfolded and non-rotatably held, and when not in use, the bed frames are folded in half and transported from the room to the storage room. Storing is done.

In addition, in order to facilitate transportation of the bed frame folded in two, casters to be installed on the floor when the bed frame is folded in two and placed in an upright state are provided at one end in the longitudinal direction of the bed frame. prepare. The folded bed frame is conveyed while rolling the casters.

Design Registration No. 1204927

By the way, the bed frame constituting the bed apparatus is divided into two at the central portion in the longitudinal direction as described above, the two divided bed frames are rotatably connected, and the bed frame is divided into two when not in use. In the case of the folded structure, the mattress placed on the upper surface of the bed frame is also structured so that it can be divided into two parts at the central part in the longitudinal direction and folded in the same way as the bed frame.

However, when the mattress is divided into two parts at the central part in the longitudinal direction, the buttocks and waist of the user lying on the mattress when sleeping are located at the divided part of the mattress. Therefore, the divided portions may give the user a sense of discomfort and cause a decrease in sleeping comfort.

On the other hand, if both the bed frame and the mattress are divided into two parts, the height dimension formed by the bed frame and the mattress is reduced to about half when not in use, so that there is an advantage that the bed frame and the mattress are easy to handle.

However, if the bed frame and the mattress are folded in two and stored, the thickness of the bed apparatus when stored is twice the thickness of the mattress and twice the thickness of the bed frame folded in two. It becomes the thickness plus the thickness.

As a result, the thickness dimension of the bed apparatus when stored becomes large, and the space in the storage room cannot be effectively used.

Moreover, if the mattress and the bed frame are folded in two and stored, the height of these parts will be halved, so that the utilization efficiency of the space in the height direction of the storage room will also be reduced.

The present invention eliminates the need to divide the mattress into two at the central portion in the longitudinal direction, even if the length of the bed frame and mattress is such that a tall person can use it, and the entire bed apparatus when stored. To provide a bed device capable of effectively using a storage space by reducing the thickness of a bed.

The present invention includes a body frame portion, and a folding frame formed shorter in length than the body frame portion and connected to one end in the longitudinal direction of the body frame portion so as to be foldable on the lower surface side of the body frame portion. a bed frame having a portion;
The folding frame portion is held so as not to rotate with respect to the main body frame portion in a state in which the folding frame portion is unfolded so as to be horizontal with respect to the main body frame portion and in a state in which the folding frame portion is folded toward the lower surface side of the main body frame portion. holding means for
a mattress main body shorter than the entire length of the bed frame and longer than the length of the main body frame; and the mattress main body connected to one end of the mattress main body so as to be foldable so as to be in contact with the lower surface of the mattress main body. a mattress having a lengthening mattress section that, when extended horizontally against the bed frame, has a sum of lengths with the mattress body section that is approximately equal to the length of the bed frame;
Casters provided at the other end of the body frame in the longitudinal direction to support the bed frame so that the bed frame can travel when the bed frame is in an upright position.

That is, the bed frame is divided into a body frame portion and a folding frame portion shorter than the body frame portion to form a bed frame, while the mattress is shorter than the entire length of the bed frame and longer than the body frame portion. The mattress is composed of a mattress main body, and an elongated mattress section which is rotatably connected to one end of the mattress main body and which, together with the main body frame, has substantially the same length as the bed frame.

Therefore, the mattress can be made longer than usual by the augmented mattress section to a length that is easy for a tall person to use, and the length of the mattress main section is longer than half of the total length of the mattress. Since the connection part with the extension mattress part is displaced from the position of the buttocks and waist part on the back of the user to the foot part side, it is possible to prevent the deterioration of sleeping comfort due to the connection part of the mattress body part and the extension mattress part. can.

When storing, the extension frame portion is folded toward the lower surface of the body frame portion, and then the extension mattress portion is folded so as to be joined to the bottom surface of the body mattress portion, and the bed frame is placed in an upright position and the body frame. It can be traveled and conveyed by the casters provided at the other end of the unit.

Therefore, in the stored state, the height dimension is lowered by the length of the lengthening mattress portion, and the thickness dimension is the thickness of the portion where the mattress body portion and the lengthening mattress portion overlap at the maximum portion.

As a result, the height dimension of the bed device when stored is almost the same as that of a normal bed device, and the maximum thickness dimension is the thickness of the overlap of the mattress body portion and the extension mattress portion. It can be stored in the vertical direction of the storage space without causing a large amount of waste, and can be stored side by side in the horizontal direction as much as the thickness can be reduced. In other words, the storage space can be effectively used.

BRIEF DESCRIPTION OF THE DRAWINGS The perspective view which shows the bed apparatus of one embodiment of this invention. FIG. 4 is a perspective view of a state in which the bed apparatus is placed in an upright position for storing the bed apparatus; The side view of the said bed apparatus. The figure which looked at the bed apparatus of FIG. 3 from the longitudinal direction one end side. The top view of the bed frame which removed the mattress. The perspective view which looked at the bed apparatus of FIG. 3 from the longitudinal direction other end side. FIG. 4 is a side view of the other end in the longitudinal direction of the bed apparatus of FIG. 3; FIG. 4 is a view showing a holding mechanism that holds the folding frame in a horizontal state and in a folded state with respect to the body frame of the bed frame so as not to rotate; The figure which shows the connection part of the bed frame and the leg body attached to this bed frame so that folding was possible. The figure which shows the attachment state of the fixed leg attached to the other end of a main-body frame part.

An embodiment of the present invention will be described below with reference to the drawings.

1 to 10 show an embodiment of the present invention, FIG. 1 is a perspective view showing a state in which the bed apparatus B is laid down and used, and FIG. It is a perspective view showing. The bed apparatus B has a bed frame 1 and a mattress 2 placed on the upper surface of the bed frame 1 .

As shown in FIGS. 3 to 5, the bed frame 1 consists of a body frame portion 5 and a folding frame portion 6 whose length is set to be about half as short as the body frame portion 5. split. As shown in FIGS. 2, 5 and 8, both width direction ends of one end of the folding frame portion 6 are rotatably connected to both width direction ends of one end of the body frame portion 5 by holding means 7, respectively. there is

The holding means 7 has a hinge function for rotating the folding frame portion 6 with respect to the body frame portion 5, a state in which the folding frame portion 6 is horizontally unfolded with respect to the body frame portion 5, and a state in which the folding frame portion 6 is horizontally unfolded with respect to the body frame portion 5. It has a holding function of holding the frame portion 5 in a bent state on the lower surface side.

That is, as shown in detail in FIG. 8, the holding means 7 is a pair of connecting pieces 8 fixed to the lower surfaces of the side edges of the body frame portion 5 and the folding frame portion 6 at one end. have A pair of connecting pieces 8 are rotatably connected by a support shaft 9 at their ends protruding to the lower surface of the bed frame 1 .

A stopper hole 14 is formed in one of the connecting pieces 8 . A projection 13 projecting from one end of a U-shaped stopper handle 12 is fitted into the stopper hole 14 .

The other end of the stopper handle 12 is formed with a small diameter portion 15 . This small diameter portion 15 is slidably inserted into a through hole 16 formed in the other connecting piece 8 . A collar 17 is attached to a portion of the small diameter portion 15 protruding through the through hole 16 .

A compression spring 18 having a diameter smaller than that of the collar 17 is attached to a portion of the small diameter portion 15 protruding from the collar 17 . An E-ring 19 is attached to the tip of the small diameter portion 15 to prevent the compression spring 18 from coming out of the small diameter portion 15 and hold it.

As shown in FIG. 3, when the folding frame portion 6 of the bed frame 1 is in a horizontal state with respect to the body frame portion 5, the stopper handle 12 provided at one end of the stopper handle 12 as shown in FIG. The protrusion 13 is engaged with the stopper hole 14 by the restoring force of the compression spring 18 . Thereby, the folding frame portion 6 is held with respect to the body frame portion 5 so as not to rotate.

When the stopper handle 12 is pulled in the direction indicated by the arrow Y in FIG. 8 while compressing the compression spring 18, the projection 13 is removed from the stopper hole 14, so that the folding frame portion 6 is shown in chain lines in FIG. can be rotated to the lower surface side of the body frame portion 5, that is, can be folded.

With the stopper handle 12 pulled in the direction of arrow Y while compressing the compression spring 18, the folding frame portion 6 is rotated about 180 degrees, and then the projection 13 at one end of the stopper handle 12 is folded. The connecting piece 8 provided in the frame portion 6 is rotated with the small diameter portion 15 supported in the through hole 16 as a fulcrum to a position facing the stopper hole 14 .

Next, the stopper handle 12 is returned in the direction opposite to the arrow Y direction by the restoring force of the compression spring 18, and the protrusion 13 is rotated about 180 degrees as indicated by the dashed line from the state indicated by the solid line in FIG. The connecting piece 8 of the folding frame portion 6 is fitted into the stopper hole 14 .

Thereby, the folding frame part 6 is rotated by about 180 degrees and is non-rotatably held by the projection 13 .

The above operation is performed by pulling the stopper handle 12 with one hand and rotating the folding frame portion 6 with the other hand. At that time, the folding frame portion 6 is rotated by gripping a rotating handle 20 (shown in FIG. 3) provided at the end portion of the folding frame portion 6 .

The holding means 7 stands up the bed frame 1 and holds the folding frame portion 6 unrotatably even when the folding frame portion 6 is folded toward the lower surface of the body frame portion 5. When erected vertically, the folded frame portion 6 folded to the lower surface side of the body frame portion 5 is held in that state by its own weight.

Therefore, when the folding frame portion 6 is folded toward the lower surface of the body frame portion 5, the folding frame portion 6 does not have to be held by the holding means 7. As shown in FIG.

As shown in FIG. 5, a net 10 made of wire rods woven in a grid pattern is stretched in the frames of the main body frame portion 5 and the folding frame portion 6 of the bed frame 1, respectively.

As shown in FIG. 3, the ends of a pair of first legs 21a formed by bending a pipe member into a U shape are attached to one end and the other end in the longitudinal direction of the lower surface of the body frame portion 5, respectively. As shown in FIG. 9, it is pivotally attached by a pin 23 to U-shaped brackets 22 provided on the lower surface of both ends in the width direction of the body frame portion 5 so as to fall down.

Similarly, at one end of the folding frame portion 6, the end portion of the second leg 21b is attached to a U-shaped bracket 22 provided on the lower surface of both ends of the folding frame portion 6 in the width direction by means of a pin 23. It is pivotally attached so that it can fall down.

As shown in FIG. 3, the first and second legs 21a and 21b are held in an upright state inclined at a predetermined angle, and from that state, the main body frame portion is tilted as shown by chain lines in FIG. 3 or FIG. 5 and the lower surface of the folding frame portion 6, respectively.

A fixing leg 25 is provided at the other end of the bed frame 1 in the longitudinal direction, that is, the end of the bed frame 1 opposite to the folding frame portion 6 . As shown in FIGS. 3, 4 and 6, the fixing leg 25 is formed by bending a pipe material into an inverted U shape, and both legs are fixed to the end face of the body frame portion 5 via a mounting plate 25a. It is

A pair of casters 26 are provided on both legs of the fixed leg 25, respectively. Although details are not shown, the casters 26 are provided with stoppers, and the casters 26 can be held so that they cannot travel by stepping on the stoppers.

The fixing leg 25 and the caster 26 are arranged so that when the bed frame 1 is placed on the other end in the longitudinal direction, that is, when the bed frame 1 is placed in a standing position with the fixing leg 25 downward, the bed frame 1 can travel in that state. It constitutes a support means for possible support.

The support means may be configured only by the fixed leg 25 without providing the fixed leg 25 with the caster 26 . In this case, in order to transport the bed frame 1 in the upright position, the fixing legs 25 may be placed on a trolley or the like.

As shown in FIG. 6, a rod-shaped engaging member 27 is provided between both legs of the fixed leg 25 . A pair of hooks 29 having a crank-like cross section provided on the back surface of the headboard 28 can be engaged with the engaging member 27 . Thereby, the headboard 28 is detachably held by the fixed legs 25 .

The mattress 2 is placed on the upper surface of the bed frame 1 constructed as described above, as shown in FIGS. The mattress 2 is composed of a mattress main body 31 and an elongated mattress part 32 rotatably connected to one longitudinal end of the mattress main body 31 at its lower end in the thickness direction. The mattress body portion 31 and the lengthening mattress portion 32 are formed to have the same thickness.

The mattress body portion 31 and the lengthening mattress portion 32 are connected at their lower ends in the thickness direction. As a result, the lengthening mattress portion 32 moves from the horizontal state forming the same plane as the mattress main body portion 31 as shown in FIG. can be rotated to

Fasteners 33 are provided at the upper edges of the mattress body portion 31 and the extension mattress portion 32 in the thickness direction. By closing the fastener 33 in a state in which the extension mattress part 32 is horizontally raised so as to form the same plane as the mattress body part 31, the extension mattress part 32 cannot be rotated with respect to the mattress body part 31. When the fastener 33 is removed, the lengthening mattress portion 32 can be folded toward the lower surface of the other end of the mattress body portion 31 as indicated by the dashed line in FIG.

When the folding frame part 6 is rotated about 180 degrees as indicated by the dashed line in FIG. Become.

On the other hand, as described above, when the folding frame portion 6 is rotated about 180 degrees from the state indicated by the solid line in FIG. , the thickness dimension is set to be smaller than the thickness of the folded portion of the folding frame portion 6 (the thickness of the two mattresses).

The mattress body portion 31 has the same length and width dimensions as a normal mattress used in a single-size bed apparatus, and the extension mattress portion 32 is connected to the mattress body portion 31 for the single-size bed apparatus. The length dimension is longer than that of the mattress.

In other words, the mattress 2 of this embodiment can be used by even tall people so that their feet do not protrude from the lengthening mattress portion 32 of the mattress 2 .

In this embodiment, the length dimension of the lengthening mattress portion 32 is about 5 to 1/6 of the length of the mattress body portion 31. The length dimension is set short enough.

The mattress 2 placed on the bed frame 1 can be held on the body frame portion 5 of the bed frame 1 by a pair of belts 34 shown in FIG. The belt 34 holds the mattress 2 so that the mattress 2 does not slip off the bed frame 1 when the bed apparatus B is moved and stored in a storage room with the bed frame 1 in a standing position. It has become so.

The belt 34 is divided into two parts, one end of each part is connected to the lower surface of the bed frame 1, and the other end of each part can be connected by a connector. Accordingly, when using the bed apparatus B for sleeping, the connector is removed, the divided belt 34 is led to the lower surface side of the bed frame 1, and the connector is held in a connected state. be.

The width dimension of the mattress 2 is set slightly larger than the width dimension of the bed frame 1 . By doing so, when two bed apparatuses B are arranged side by side and used as a king size, the lateral sides of the mattresses 2 of the adjacent bed apparatuses B in the width direction can be elastically deformed and brought into pressure contact. As a result, it becomes difficult for a gap to form between the sides of the two mattresses 2, so that the performance as a king-size bed device can be improved.

The bed apparatus B constructed in this way is usually used for sleeping with the bed frame 1 laid down horizontally as shown in FIG. During use, the bed frame 1 on which the mattress 2 is placed is supported by the fixing leg 25 at one longitudinal end of the body frame part 5, and the middle part and the other end are respectively supported by the first legs. It is supported by legs 21a. Further, the folding frame portion 6 connected to the body frame portion 5 is supported by the second leg 21b.

When the bed apparatus B used in such a state is taken out of the bedroom and transported to a storage room (not shown) for storage, it is converted into a transportable storage state as shown in FIG. 2 by the following procedure.

Next, a procedure for converting the bed apparatus B to the stored state shown in FIG. 2 will be described.

As a first procedure, after removing the fastener 33 holding the mattress body 32 horizontally to the mattress main body 31, as a second procedure, the mattress body 31 is removed and the bed frame 1 is attached. The mattress body portion 31 is held on the body frame portion 5 of the bed frame 1 by the belt 34 held on the lower surface.

As a third procedure, the headboard 28 engaged with the fixed legs 25 is removed, and the mattress 2 is pressed against the fixed legs 25 side.

As a fourth step, the rotating handle 20 provided on the folding frame portion 6 is held, and the bed frame 1 is raised from the horizontal state shown in FIG. 1 to the vertical state shown in FIG. As a result, the casters 26 provided on the fixed legs 25 come into contact with the floor surface.

In the middle of raising the bed frame 1, the work is facilitated if the operator changes his/her hand from the rotating handle 20 to the side of the folding frame portion 6 or the side of the body frame portion 5. As shown in FIG.

As a fifth procedure, the first and second legs 21a and 21b in the upright state are laid down toward the bed frame 1 side. That is, it is laid down from the state indicated by the solid line in FIG. 3 as indicated by the chain line.

As a sixth procedure, in order to release the holding state by the holding means 7 that non-rotatably holds the folding frame portion 6 on the main body frame portion 5, the pair of left and right stopper handles 12 are restored by the compression springs 18. The projection 13 of the stopper handle 12 is removed from the stopper hole 14 of the connecting piece 8 by pulling against the force.

As a seventh procedure, the folding frame portion 6 is held by the rotating handle 20 provided at the tip thereof and folded to the lower surface side of the body frame portion 5 as shown in FIG.

As an eighth step, after the protrusion 13 of the stopper handle 12 is aligned with the stopper hole 14 of the folded frame portion 6, the stopper handle 12 is returned by the restoring force of the compression spring 18, The projection 13 is fitted into the stopper hole 14 to hold the folded folding frame portion 6 so as not to rotate.

As a ninth step, the hooks 29 of the headboard 28 removed from the fixed legs 25 in the third step are hooked on the second legs 21b, and the headboard 28 is held.

As a tenth procedure, the casters 26 that are in contact with the floor surface are unlocked, and the bed apparatus B converted to the stored state is moved and carried into the storage room for storage.

According to the bed apparatus B configured as described above, the mattress 2 is connected to the mattress main body 31 having a length used in a normal bed apparatus and to one longitudinal end of the mattress main body 31 so as to be foldable. The mattress part 32 is composed of an extension mattress part 32 which

Therefore, when the lengthening mattress part 32 is held horizontally with the mattress body part 31, the total length of the mattress 2 formed by them becomes longer than that of a mattress used in a normal bed.

On the other hand, the bed frame 1 on which the mattress 2 is placed is composed of the main frame portion 5 and the folding frame portion 6 connected to the main frame portion 5 so as to be foldable.

Therefore, the mattress 2 is reliably supported by the bed frame 1 in a state in which the lengthening mattress portion 32 is horizontally unfolded with respect to the mattress body portion 31. Therefore, even if the user is tall, the above-described The mattress 2 can reliably support the entire length.

The elongated mattress portion 32 is set sufficiently short in length with respect to the mattress body portion 31 . Therefore, the connecting portion between the mattress main body portion 31 and the lengthening mattress portion 32 is located at a position greatly shifted toward one longitudinal end portion side (second leg 21b side) of the mattress 2 .

Therefore, when the user lies down on the mattress 2, the connecting portion between the mattress main body 31 and the lengthening mattress 32 is not located near the user's buttocks or waist, but rather wide on the leg side. Since the position is deviated, it is possible to prevent the connecting portion from giving discomfort to the user. That is, it is possible to obtain a good sleeping comfort.

The bed apparatus B is stored in a storage space such as a storage room from the use state shown in FIG. 1 to the stored state shown in FIG.

When the bed apparatus B is in the retracted state shown in FIG. 2, the folding frame portion 6 is folded so as to face the body frame portion 5 and is held by the stopper handle 12 of the holding means 7 so as not to rotate.

By folding the folding frame portion 6 in this manner, the folding frame portion 6 is retracted from the lower surface of one longitudinal end portion of the mattress main body portion 31, exposing the lower surface of the one end portion of the folding frame portion 6. can be made

Next, if the holding state of the lengthening mattress portion 32 held by the fastener 33 at one end of the mattress main body portion 31 so as not to rotate is released by removing the fastener 33, the lengthening mattress portion 32 can be removed. 2, one end of the mattress main body 31 is bent so as to be joined to the lower surface thereof.

As a result, the height (length) dimension of the bed apparatus B converted to the storage state can be reduced by the length of the lengthening mattress section 32, so that when the bed apparatus B is stored in the storage room, it can be stored in the storage room. The space in the height direction of the room can be effectively used.

Moreover, since the mattress part 32 is provided, it can be used as a long bed apparatus B when used, but the bed apparatus has a normal length (height) by folding the mattress part 32 when stored. Since it can be handled as B, it can be easily stored.

As described above, the maximum thickness dimension of the bed apparatus B in the retracted state is the thickness of two mattresses at the portion where the lengthening mattress portion 32 is folded over the mattress body portion 31. 3, the thickness of the portion where the folding frame 6 is folded and the thickness of the portion where the headboard 28 is held are smaller than the thickness of two mattresses.

Therefore, the bed apparatus B of this embodiment can be made smaller in thickness than the conventional bed apparatus in which the mattress 2 and the bed frame 1 are folded in half so that both the mattress 2 and the bed frame 1 overlap when stored. Accordingly, the horizontal space when stored in the storage room can be used effectively and efficiently.

That is, according to the bed apparatus B of the embodiment of the present invention, even if the length dimension is long so that even a tall user can use it comfortably, it is shortened by that amount when stored, and a normal bed is used. Since it can be stored while handling it with the same length as the device, not only can the space in the vertical direction of the storage space be effectively utilized, but also the storage operation is easy.

Since the mattress body 31 of the mattress 2 is stored without being folded when stored, it is necessary to form a connecting portion that enables the mattress body 31 to be folded as in the conventional art. There is no

Therefore, unlike the conventional bed apparatus, the connection part of the mattress is not located around the user's waist or buttocks, which makes the user feel uncomfortable, so that the sleeping comfort can be improved. .

In addition, even if the length of the bed apparatus B is set so that a tall person can use it when stored, and the mattress 2 and a part of the bed frame 1 are folded when stored, the thickness of the mattress 2 when stored is reduced. It can be about twice as thick.

In other words, since the thickness dimension can be pushed to about twice the thickness of the mattress 2 at the maximum without significantly lowering the height dimension during storage, the storage space can be effectively used in the height direction and the horizontal direction. Become.

The present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the scope of the invention. For example, the thickness dimension of the mattress, the ratio of the length dimension of the mattress body and the length dimension of the mattress can be changed, and the length dimension of the bed frame can be changed according to the change of the length dimension of the mattress.

DESCRIPTION OF SYMBOLS 1... Bed frame 2... Mattress 5... Body frame part 6... Folding frame part 7... Holding means 12... Stopper handle 18... Compression spring 20... Rotation handle 21a, 21b... First, second 2 legs, 25: fixed legs, 26: casters, 28: headboard, 31: mattress body, 32: lengthening mattress.

Claims (5)

A bed having a body frame portion and a folding frame portion which is formed to be shorter in length than the body frame portion and which is foldably connected to the lower surface side of the body frame portion at one end in the longitudinal direction of the body frame portion. a frame;
holding means for holding the folding frame unrotatably with respect to the body frame in a state in which the folding frame is unfolded so as to be horizontal with respect to the body frame;
a mattress main body shorter than the entire length of the bed frame and longer than the length of the main body frame; and the mattress main body connected to one end of the mattress main body so as to be foldable so as to be in contact with the lower surface of the mattress main body. a mattress having a lengthening mattress section that, when extended horizontally against the bed frame, has a sum of lengths with the mattress body section that is approximately equal to the length of the bed frame;
and support means provided at the other end in the longitudinal direction of the body frame portion for supporting the bed frame so as to be able to travel when the bed frame is placed in an upright position. The length of the body frame is set to such a length that when the folding frame is folded, the lengthening mattress can be folded to the lower side of one end of the mattress body. The bed apparatus according to claim 1. The support means is provided at the other end of the body frame in the longitudinal direction, and is provided on a fixed leg for supporting the body frame in an upright position. 3. The bed apparatus according to claim 1, further comprising casters supporting said body frame portion so as to be able to travel when said portion is placed in an upright position. 4. The bed apparatus according to claim 3 , wherein a headboard is detachably engaged with the fixed legs. The bed frame, in which the folding frame portion is horizontally unfolded with respect to the body frame portion , includes the fixed legs, first legs foldably provided on the lower surface of the body frame portion, and the folding frame. 5. The bed apparatus according to claim 4, wherein the bed apparatus is supported by a second leg provided foldably on the lower surface of the portion.

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