Bed

Abstract

To provide a bed capable of changing positions of a support part for fitting an option and of fixing the support part with the option fitted.SOLUTION: A bed has a width direction and a lengthwise direction, and an option is removably attached to a bed side part. The bed is provided with: a bottom arranged on a bed frame; a support part supporting the option at a first position outside an outer edge of the bottom in a width direction; and a support device connected to a side part of the bed frame and having the support part. The support part is movable between the first position capable of supporting the option and a second position located inside in the width direction of the first position. The support device has a stopper part fixing movements of the support part at the first position when the option is supported by the support part.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present invention relates to a bed having an option removably attached to the bed side. [Background technology]

[0002] Beds, particularly medical and nursing care beds, are provided with removable options on the sides of the bed, such as side rails to prevent a reclining person from falling off the mattress or the futon from slipping off, and supports for hanging intravenous drips, etc.

[0003] Conventionally, beds to which options can be attached have multiple support holes fixed at a predetermined interval along the length of the bed on the side (one side or both sides) in the width direction of the bed, and the supported part of the option is inserted into these multiple support holes. However, because the support holes are fixed to the side of the bed in such a bed, the space on the side of the bed having the multiple support holes remains wasted even after the option is removed.

[0004] As a technology for solving the above problems, for example, Patent Document 1 discloses a side fence support device which comprises a fixed member provided on a part of the side of a bed frame, one end of which is fixed to the bed frame and has a first connecting hole formed on the other end, a movable member having a second connecting hole formed on one end and a support hole for supporting the side fence on the other end, and which is rotatably connected to the fixed member by a connecting shaft passed through the second connecting hole and the first connecting hole, and a resistance member provided between the joint surfaces of the movable member and the fixed member and which applies rotational resistance to the movable member when the movable member is rotated relative to the fixed member.

[0005] Also, for example, Patent Document 2 discloses a support member for a side fence in which a support hole for supporting the side fence is formed in a recess formed in the widthwise side of the bed frame and which can be folded up when the side fence is not being supported, allowing a doctor or caregiver to insert their body into the recess to examine or care for the user. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] JP 1999-113683 A [Patent Document 2] Patent No. 4783625 Summary of the Invention [Problem to be solved by the invention]

[0007] In these conventional support devices, a portion having a support part of the support device rotates, and the support part can be stored under the floor of the bed after the option is removed. However, since the support part of these support devices is movable, the support part is not fixed even when the option is attached, and the attached option is not stable.

[0008] In addition, especially in medical and nursing care beds, there are some that can be adjusted in size (length and width) as needed, since patients of various body sizes may use the same bed. On the other hand, options such as side rails need to be considered for the safety of the recumbent, such as preventing falls from the bed, and to make medical care and nursing easier. For this reason, the installation position of the options needs to be changed according to the bed size.

[0009] In particular, in medical and nursing beds, for example, when used at home or depending on symptoms, there is a need to set the floor board (bottom) of the bed as low as possible. In such beds where the floor can be set at a low position (hereinafter, such beds may be referred to as low-bed beds), it may be difficult to apply the above-mentioned conventional support device. Since various protrusions such as casters and legs are provided on the bottom of the bed, there is a concern that, depending on the location of the support device, when a part of the support device is rotated, it may interfere with the protrusions and the support part may not be able to be stored under the floor.

[0010] For example, the bed in Patent Document 2 has an option with multiple supported parts attached to a support part fixed to the side of the bed and a support part provided on a rotating support device, and thus only reduces some of the wasted space on the side of the bed. [Means for solving the problem]

[0011] A bed according to one aspect of the present invention has a width direction and a length direction, and an option can be removably attached to the side of the bed. The bed includes a bed frame, a bottom placed on the bed frame, a support part that supports the option at a first position outside the outer edge of the bottom in the width direction, and a support device connected to the side of the bed frame and having the support part. The support part is movable between a first position where the option can be attached and a second position that is inward in the width direction from the first position. The support device has a stopper part that, when the option is attached to the support part at the first position, moves in response to the option to fix the support part to the first position. Thus, the position of the support part for attaching the option can be changed, and the support part can be fixed when the option is attached.

[0012] A bed according to another aspect of the present invention is a bed having a width direction and a length direction, and an option can be removably attached to a side part of the bed. The bed includes a bed frame, a bottom placed on the bed frame, a support part that supports the option outside the outer edge of the bottom in the width direction, and a support device connected to the side part of the bed frame and having the support part. The support part is movable between a plurality of different first positions in the width direction, and an option can be attached at each of the plurality of first positions. Thus, the support part can be moved to a plurality of positions in the width direction.

[0013] A bed according to another aspect of the present invention is a bed having a width direction and a length direction, and an option can be removably attached to a side part of the bed. The bed includes a bed frame, a bottom placed on the bed frame, a support part that supports the option outside the outer edge of the bottom in the width direction, and a support device connected to the side part of the bed frame and having the support part. The support part is movable between a plurality of different first positions in the length direction, and an option can be attached at each of the plurality of first positions. Thus, the support part can be moved to a plurality of positions in the length direction.

[0014] A bed according to another aspect of the present invention is a bed having a width direction and a length direction, and an option is detachably attached to the side of the bed. The bed includes a first frame, a second frame arranged above the first frame and rising and lowering relative to the first frame, a bottom arranged on the second frame, a support part that supports the option outside the outer edge of the bottom in the width direction, and a support device connected to the side of the second frame and having the support part. The support device has a fixed part fixed to the side of the second frame and a movable part movably connected to the fixed part. The movable part has the support part, and the support part can move between a first position where the option can be attached and a second position located inward in the width direction from the first position by moving the movable part relative to the fixed part. The first frame has a protruding part protruding upward. The fixed part is fixed to the side of the second frame at a position offset from the protruding part in the length direction. The first position is arranged at a position overlapping with the protruding part in the length direction and offset outward from the protruding part in the width direction. The second position is disposed at a position spaced apart from the protruding portion in the length direction. The movable portion is configured to move the support portion between the first position and the second position by moving through a path that bypasses the front protruding portion. Therefore, even when the second frame is in the lowest position, the support portion can be prevented from contacting the protruding portion.

[0015] A bed according to another aspect of the present invention has a width direction and a length direction, and an option is detachably attached to the side of the bed. The bed includes a bed frame, a bottom placed on the bed frame, a plurality of support parts that support a plurality of supported parts of the option outside the outer edge of the bottom in the width direction, and a plurality of support devices connected to the side of the bed frame. The plurality of support devices each have a plurality of support parts, and each of the plurality of support parts is movable between a first position where the option can be attached and a second position that is located inside the first position in the width direction, and a distance between the plurality of supported parts of the option is a first distance, a distance between the plurality of support parts that support the plurality of supported parts is the first distance when the plurality of support parts are in the first position, and a distance between the plurality of support parts is different from the first distance when at least one of the plurality of support parts that support the plurality of supported parts is in a position other than the first position. Therefore, in an option that has a plurality of supported parts, the plurality of support devices can be fixed to the bed by fixing the support holes at the first positions. Effect of the Invention

[0016] According to the present invention, the position of the support part for mounting an option can be changed, and the support part can be fixed with the option mounted. [Brief description of the drawings]

[0017] [Figure 1] FIG. 1 is a perspective view of a bed according to an embodiment of the present invention; [Diagram 2] Plan view of the bed with options ready to be supported [Diagram 3] Plan view of the bed with options removed and in storage [Figure 4] Plan view of the bed frame with options ready to be supported [Diagram 5] Plan view of the bed frame with options removed and stored [Figure 6] Bed frame side view [Figure 7]FIG. 1 is a perspective view of a first holder attached to a long frame; [Figure 8(a)] FIG. 11 is a side view illustrating the first holder with the option removed; [Figure 8(b)] FIG. 11 is a side view illustrating a first holder with an option attached thereto; [Figure 9(a)] FIG. 11 is a plan view illustrating the first holder with the option removed; [Figure 9(b)] FIG. 11 is a plan view illustrating a first holder with an option attached thereto; [Figure 10] FIG. 11 is a plan view showing a state of the first holder in a position other than a position where an option can be attached; [Figure 11] FIG. 11 is a plan view showing a modified example of the first holder; [Figure 12] FIG. 12 is a diagram for explaining the attachment state of the side rail 9 when the length of the bed is changed by the first holder of FIG. 11. [Figure 13(a)] FIG. 13 is a perspective view showing a portion of the second holder when the option is removed; [Figure 13(b)] FIG. 13 is a perspective view showing a portion of the second holder when an option is attached; [Figure 14] FIG. 1 is a diagram showing a portion of a second holder in a stored state; [Figure 15] FIG. 11 is a plan view showing a second holder attached to a side of a bed frame in a movable state; [Figure 16] FIG. 11 is a plan view showing the second holder attached to the side of the bed frame in a stored state; [Figure 17(a)] Partial side view of the third holder when the option is removed [Figure 17(b)] Side view showing part of the third holder when an option is installed [Figure 18] FIG. 13 shows the third holder in a stored state. [Figure 19] FIG. 13 is a diagram showing a modified example of the third holder; [Figure 20] FIG. 13 is a diagram illustrating the movement of a support member that is rotatably connected. [Figure 21]FIG. 1 is a diagram illustrating the movement of a support member that is slidably connected. [Figure 22] FIG. 1 is a diagram illustrating the movement of a support member that is slidably connected. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0018] <Bed configuration> DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to Figs.

[0019] FIG. 1 is a perspective view of a bed 1 according to this embodiment. FIG. 2 is a plan view of the bed 1 in a state in which an option can be supported. FIG. 3 is a plan view of the bed 1 in a state in which the option has been removed and stored. FIG. 4 is a plan view of the bed frame 2 in a state in which an option can be supported. FIG. 5 is a plan view of the bed frame 2 in a state in which the option has been removed and stored. FIG. 6 is a side view of the bed frame 2. In the following description, an example in which a side rail 9 is used as an option may be shown. However, the option is not limited to the side rail 9.

[0020] The bed 1 according to this embodiment is a bed used in medical and nursing care settings such as hospitals, nursing homes, and homes. The bed 1 is formed in a generally rectangular shape elongated in a vertical direction in plan view to support the body of a patient or other person lying down, and has a width direction and a length direction. In this specification, the length direction of the bed 1 is simply referred to as the length direction, and the direction opposite to the length direction of the bed 1 is simply referred to as the width direction. The length direction may be described as front-rear or vertical, and the width direction as left-right or horizontal. When referring to a direction of a specific part or member, it may be described as "XX direction of XX part", etc.

[0021] As shown in Fig. 1, the bed 1 includes a bed frame 2 and a bottom 3 provided on the bed frame 2. When the bed 1 is in use, a bed mat (not shown) on which a recumbent person lies is placed on the bottom 3.

[0022] As shown in Figure 6 etc., the bed frame 2 includes a base frame 21, a main frame 23 arranged above the base frame 21, and a lifting mechanism 22 arranged between the base frame 21 and the main frame 23 to enable the main frame 23 to move up and down.

[0023] 4, 5, etc., the main frame 23 is a vertically elongated, generally rectangular frame in plan view, having a pair of long frames 231 and a pair of short frames 232. The width of the main frame 23 is determined by the dimension in the width direction between the pair of long frames 231, and is shorter than the width of the bottom 3. In addition, a headboard 4 and a footboard 5 are removably disposed on the front and rear ends of the main frame 23, respectively.

[0024] The bottom 3 is placed on the main frame 23 and can move up and down in conjunction with the main frame 23. The bottom 3 is formed so as to be mutually separable and connectable. Specifically, as shown in FIG. 1 and the like, the bottom 3 has a plurality of elements, such as a back bottom 31, a waist bottom 32, and a knee-leg bottom 33, and these elements are connected in the lengthwise direction from the head side in the order of the back bottom 31, the waist bottom 32, and the knee-leg bottom 33. The bottom 3 is configured so that the angles of the back bottom 31 and the knee-leg bottom 33 can be changed with respect to the waist bottom 32. Furthermore, the back bottom 31 has an upper back bottom 31a and a lower back bottom 31b that are connected in the lengthwise direction and whose angles can be changed relatively. Moreover, the knee-leg bottom 33 has an upper leg bottom 33a and a lower leg bottom 33b that are connected in the lengthwise direction and whose angles can be changed relatively. In other words, each part of the bottom 3 can be bent relatively.

[0025] As shown in Figs. 4, 5, 6, etc., the base frame 21 is formed in a vertically long, approximately rectangular frame shape in a plan view. The base frame 21 also has a protruding portion protruding upward. The protruding portion is, for example, a leg with casters 6. The bed 1 is movable by providing legs with casters 6 at its four corners. The legs with casters 6 may be provided with stoppers (not shown) that suppress the movement of the bed 1. The legs with casters 6 are formed, for example, by connecting caster support parts 213 that support the casters 6 to the front and rear ends of the vertical frames 211 of the base frame 21. The caster support parts 213 are formed to protrude upward from the base frame 21 so as to support the casters 6 while positioning the vertical frames 211 in a position close to the floor surface. In the illustrated example, each caster support part 213 is formed in an approximately quarter-circle shape, the casters 6 are supported below the upper end 213a, and the vertical frames 211 are connected to the lower end 213b. As a result, the vertical frame 211 of the base frame 21 is disposed in a position close to the floor surface. Since the lifting mechanism 22 and the like are disposed between the base frame 21 and the main frame 23, by disposing the vertical frame 211 in a position close to the floor surface, it is possible to make the position of the bottom 3 on the main frame 23 as low as possible. In other words, it is possible to make the bed 1 low. Note that, although the legs with casters 6 have been described as the protruding parts, the legs may not have casters, and the protruding parts may be something other than the legs.

[0026] The width of the base frame 21 may be set at any value, but in this embodiment, it is formed to be approximately equal to or slightly narrower than the width of the bottom 3. <Bed support placement>

[0027] The bed 1 is provided with a support hole 7 as a support portion capable of supporting an option. The support hole 7 is capable of supporting an option outward from the outer edge 3a of the bottom 3 in the width direction, and is movable between a position where the option can be supported and a position inward from the position where the option can be supported in the width direction. More specifically, the support hole 7 is capable of moving between a position where the option can be supported and a position inward from the outer edge 3a of the bottom 3 in the width direction. When the support hole 7 is in a position inward from the outer edge 3a of the bottom 3 in the width direction, it is stored under the bottom 3.

[0028] A plurality of support holes 7 may be provided on the side of the bed 1. The plurality of support holes 7 are provided at a predetermined interval in the length direction when they are in a position capable of supporting an option. In this embodiment, as shown in, for example, Figures 2 and 4, each long frame 231 is provided with five support holes 7, and the adjacent support holes 7 are configured to be spaced at equal intervals L1 so that the legs 9b of the optional side fence 9 can be inserted into any two adjacent support holes 7 in the movable state.

[0029] Each support hole 7 is provided in a holder 8 serving as a support device. The holder 8 is connected to the side of the bed frame 2. Specifically, as shown in, for example, Figures 2 and 3, the holder 8 is connected to the long frame 231 so that the support hole 7 is located on the outer side of the main frame 23 in the width direction. The holders 8 are also connected to the long frame 231 at intervals in the length direction. In this embodiment, the support holes 7 of each holder 8 are formed to penetrate in the vertical direction so as to be able to support the legs 9b of the optional side rails 9.

[0030] In the following, the state in which the support hole 7 is in a position where it can support an option, as shown in Figures 2, 4, etc., will be referred to as the movable state, and the state in which the support hole 7 is in a position where it is stored under the bottom 3, as shown in Figures 3, 5, etc., will be referred to as the stored state.

[0031] For example, as shown in Fig. 2, an optional side fence 9 has two legs 9b below a side fence main body 9a, the legs 9b being spaced a predetermined distance L1 apart in the longitudinal direction. For example, when two holders 8 supporting the side fence 9 are in a movable state, it is desirable to adjust the distance between two adjacent support holes 7 in the longitudinal direction to correspond to the distance L1 between the legs 9b. Note that in Fig. 2, L1 is shown as the distance between the legs 9b of the side fence 9 and the distance between the corresponding support holes 7 (between the dotted lines), and L2 is shown as the widthwise distance between the bottom outer edge 3a and the support hole 7 (the positions of the support holes 7 aligned in the longitudinal direction are shown by dashed lines).

[0032] Also, as shown in FIG. 4, for example, the holder 8 may be provided so that its longitudinal direction is along the width direction, or may be provided so as to have a certain angle with respect to the width direction. Therefore, the interval between the mounting positions P1 of adjacent holders 8 on the long frame 231 may not be the predetermined interval L1. In FIG. 4, the interval between the mounting position P1 of the holder 8 at the center in the length direction and the mounting position P1 of the holder 8 adjacent thereto corresponds to the predetermined interval L1, and the interval between the mounting position P1 of each holder 8 at the front and rear ends in the length direction and the mounting position P1 of the holder 8 adjacent thereto is shorter than the predetermined interval L1. Since each holder 8 at the front and rear ends in the length direction is adjacent to the caster-equipped legs (casters 6 and caster support parts 213), if the holders 8 are attached to the long frame 231 at the predetermined interval L1 between the support holes 7, there is a risk of interference with the caster-equipped legs (casters 6 and caster support parts 213) and other protruding parts of the base frame 21. Furthermore, when the support hole 7 is stored under the bottom 3, there is a high possibility that it will interfere with these.

[0033] That is, each holder 8 at the front and rear ends in the length direction is fixed to the side of the main frame 23 at a position deviated from the protruding portion in the length direction, and the position of the support hole 7 in the movable state (position where optional support is possible) can be arranged at a position overlapping with the protruding portion in the length direction and at a position deviated outward from the protruding portion in the width direction. Also, the position of the support hole 7 in the stored state can be arranged at a position deviated from the protruding portion in the length direction. The support hole 7 can be moved between the positions of the movable state and the stored state by moving through a path that bypasses the protruding portion. By arranging in this way, it is possible to prevent the holders 8 at the front and rear ends from interfering with these protruding portions in both the movable state and the stored state, even when the bottom 3 and the main frame 23 are lowered to the lowest position.

[0034] In the bed 1 of this embodiment, all of the support parts that support the options are configured by the support holes 7 of the holders 8. With this configuration, all of the holders 8 can be stored under the bottom 3 when the options are removed. This allows the bed width to be narrower when the options are removed, compared to a bed in which at least some of the support parts are fixed to the outside of the bottom 3 on the bed side (i.e., some of the support parts cannot be stored under the bottom 3). It is not necessary that all of the support parts of the bed 1 are configured by the support holes 7 of the holders 8, and some may be fixed to the outside of the bottom 3 depending on the specifications of the bed 1.

[0035] The support hole 7 may be capable of supporting an option at a plurality of positions outside the outer edge 3a of the bottom 3 in the width direction. For example, the position P2 at which the option can be supported may be at a plurality of different positions in the length direction. In this case, the holder 8 may be capable of moving the support hole 7 between the positions P2 at which the option can be supported at a predetermined position in the width direction so that the position of the support hole 7 in the length direction can be changed. Furthermore, the support hole 7 may be capable of moving between these positions P2 at which the option can be supported and a position inward in the width direction from the outer edge 3a of the bottom 3. For example, as shown in FIG. 20, the holder 8 may be configured to set only one position P2 at which the option can be supported for the support hole 7 (the front holder 8) or to set a plurality of positions P2 at which the option can be supported for the support hole 7 (the rear holder 8). It is preferable that the distance between the position P2 at which the option can be supported for the support hole 7 and the outer edge 3a of the bottom 3 in the width direction is a predetermined interval L2.

[0036] In this way, the holder 8 can set the optional support position P2 of the support hole 7 to a plurality of different positions in the length direction, so that it can be used without changing the mounting position of the holder 8 even in beds of different lengths or beds that can be changed or selected to different lengths. For example, the holder 8 can also be used in beds that can be extended or contracted in the length direction, as shown in FIG. 12. FIG. 12(a) shows a bed in which the bed frame 2 (in the illustrated example, the long frame 231) is extended forward, but even in such a case, the gap between the side rail 9 and the headboard 4 can be set in the same way as in the bed in FIG. 12(b) in which the bed frame 2 (231) is not extended. This makes it possible to prevent injuries caused by a recumbent falling, or a part of the body, such as the neck, from being caught in the gap, even in beds that can be changed to different lengths.

[0037] The support hole 7 may be capable of supporting an option at a plurality of positions outside the outer edge 3a of the bottom 3 in the width direction. For example, the position P2 at which the option can be supported may be set differently in the width direction. In this case, the support hole 7 may be movable between the positions P2 at which the option can be supported at a predetermined position in the length direction so that the position of the support hole 7 in the width direction can be changed. Furthermore, the support hole 7 may be movable between the positions P2 at which the option can be supported and a position inward in the width direction from the outer edge 3a of the bottom 3. For example, as shown in FIG. 21, the holder 8 may be set to only one position P2 at which the option can be supported for the support hole 7, or as shown in FIG. 22, a plurality of positions P2 at which the option can be supported for the support hole 7 may be set. It is preferable that the distance between the position P2 at which the option can be supported and the outer edge 3a of the bottom 3 in the width direction is a predetermined interval L2.

[0038] In this way, by allowing the holder 8 to set multiple optional support positions P2 of the support hole 7 in the width direction, it can be used without changing the attachment position of the holder 8 even for beds of different widths or beds whose bed widths are changeable or selectable. <Holder configuration and arrangement>

[0039] Fig. 20 is a diagram for explaining the movement of the movable member M rotatably connected to the fixed member F. Figs. 21 and 22 are diagrams for explaining the movement of the movable member M slidably connected to the fixed member F. In the diagrams, the movable member M is shown by dotted lines as an example of positions to which it can be moved. Also, the outer edge 3a of the bottom 3 is shown by dotted lines, and auxiliary lines for explaining positions in which the support hole 7 can be optionally supported are shown by dashed lines.

[0040] The holder 8 is movably attached to the side of the bed frame 2. Specifically, for example, the holder 8 has a fixed member F fixed to the long frame 231 and a movable member M having a support hole 7 that supports an optional supported part (for example, the leg part 9b of the side fence 9), and the movable member M is movably connected to the fixed member F.

[0041] The fixed member F is a member for movably attaching the movable member M to the outside of the side of the bed frame 2. The fixed member F has a base end fixed to the long frame 231 and extends outward in the width direction. For example, in the illustrated example, the fixed member F is disposed so that the longitudinal direction thereof is aligned with the width direction.

[0042] The movable member M has a base end connected to the other end of the fixed member F, and the other end is provided with a support hole 7 and is formed to be movable as a free end. In a movable state, the movable member M may be provided so that its longitudinal direction is along the width direction, or may be provided in a direction having a certain degree of angle with respect to the width direction.

[0043] In addition, in the stored state, the support hole 7 of the holder 8 can be disposed under the bottom 3 as described above. For example, as shown in Fig. 5, in the stored state, the movable members M (83, 84, etc.) may be folded with respect to the fixed members F (81, 82, etc.) and stored under the bottom 3 substantially parallel to the long frame 231. In addition, in the bed 1 having a plurality of holders 8 as in the illustrated example, all of these plurality of holders 8 can be stored under the bottom 3 when options are removed.

[0044] Furthermore, the holder 8 that can set a plurality of different positions P2 capable of supporting an option in the length direction may be configured so that the movable member M is movable between the positions P2 capable of supporting each option.

[0045] Furthermore, the holder 8 that can set a plurality of different positions P2 capable of supporting an option in the width direction may be configured so that the movable member M is movable between the positions P2 capable of supporting each option.

[0046] In this embodiment, an example is shown in which the movable member M is connected to the fixed member F so as to be rotatable or slidable. However, the movable member M may be moved by any other moving method.

[0047] The movement of the movable member M, which is rotatable relative to the fixed member F, will be described below. For example, as shown in Fig. 20, the movable member M is rotatable relative to the fixed member F via a connecting shaft J. The movable member M is configured so that at least the support hole 7 rotates between a position P2 where an option can be supported in the movable state and a stored position in the stored state. The stored position may be any position within the outer edge 3a of the bottom 3 in the width direction.

[0048] The holder 8 has one or more positions P2 at which an option can be supported. Fig. 20 (front) shows an example of the movement of a holder 8 having one position P2 at which an option can be supported. As in this example, the movable member M may be arranged so that its longitudinal direction is along the width direction at the position P2 at which the option can be supported (also along the longitudinal direction of the fixed member F in the illustrated example), but is not limited to this. For example, the movable member M may be arranged so that its longitudinal direction is angled with respect to the width direction at the position P2 at which the option can be supported.

[0049] FIG. 20 (rear) shows an example of a holder 8 having two positions P2 where options can be supported. As in this example, the longitudinal direction of the movable member M has an angle in the front-rear direction with respect to the width direction at the position P2 where options can be supported. This allows the selection of the two positions P2 where options can be supported without changing the distance L2 between the bottom outer edge 3a and the support hole 7. It is preferable to change the length of the movable member M so that the distance between the support hole 7 and the long frame 231 at this position P2 becomes a predetermined distance L3.

[0050] The movement of the movable member M, which is slidable relative to the fixed member F, will be described below. For example, as shown in Fig. 21, the movable member M is slidable relative to the fixed member F. It is preferable that the support hole 7 of the movable member M is configured to slide between a position P2 where an option can be supported in the movable state and a stored position in the stored state. The stored position may be any position within the outer edge 3a of the bottom 3 in the width direction.

[0051] The holder 8 has one or more positions P2 at which an option can be supported. Fig. 21 shows an example of a holder 8 having one position P2 at which an option can be supported. For example, as in the holder 8 in Fig. 21 (front), the movable member M may be arranged so that its longitudinal direction is aligned with the width direction at the position P2 at which an option can be supported. Also, as in the holder 8 in Fig. 21 (rear), for example, the movable member M may be arranged so that its longitudinal direction is angled with respect to the width direction at the position P2 at which an option can be supported.

[0052] It is desirable that the distance between the support hole 7 and the outer edge 3a of the bottom 3 at this position P2 of the movable member M be a predetermined distance L2. In addition, at this time, regardless of the angle set, the length of the movable member M may be adjusted so that the distance between the support hole 7 and the long frame 231 in the width direction is a predetermined distance L3.

[0053] Furthermore, as shown in Fig. 22, the movable member M may be movable between positions P2 at which multiple options can be supported. The movable member M in Fig. 22 (front) is an example in which it is slidable in its longitudinal direction and movable in the width direction between positions P2 at which multiple options can be supported. The movable member M in Fig. 22 (rear) is an example in which it is slidable in its longitudinal direction and movable between positions P2 at which multiple options can be supported at an angle to the width direction. Note that the holder 8 only needs to be configured to be slidable between positions P2 at which multiple options can be supported, and does not have to be slid to the storage position in the storage state.

[0054] The movable member M has a stopper portion 10. The stopper portion 10 is movably connected to the movable member M, and is configured to move in association with the option when an option is attached to the support hole 7 located at the position P2 where the option can be supported as the first position, and to fix the support hole 7 to the position P2 where the option can be supported by engaging with the option and engaging with the fixing member F. In addition, the fixation is released when the option is removed from the support hole 7. Thus, when no option is attached to the holder 8, the position of the support hole 7 can be changed, and when the option is attached, the operation of the stopper portion 10 can fix the support hole 7 so that it does not move from that position, and the option can be stably attached.

[0055] By providing the stopper portion 10 on each holder 8, it is possible to accommodate the attachment of various options. For example, in this embodiment, the side fence 9 (having two legs 9b) with the interval between the two supported parts being L1 is shown as an option, but even if an option other than this option is used, when the option is attached, the support hole 7 can be fixed at the position P2 where the option can be supported, and when the option is removed, the fixation can be released. Therefore, the same effect as above can be obtained. Specifically, for example, it is possible to accommodate the attachment of an option having one supported part or an option having three or more supported parts. Also, for example, even if an option has multiple supported parts and the interval between adjacent supported parts is other than the predetermined interval L1, it can be accommodated as long as the multiple support holes 7 corresponding to these on the side of the bed frame 2 are at the position P2 where the option can be supported.

[0056] The holder 8 is configured so that an option cannot be attached to the support hole 7 at any position other than the option supportable position P2. This allows the bed 1 to attach options only at appropriate positions, and prevents the attachment of options at inappropriate positions. <Holder 8 Configuration>

[0057] In the following, in several embodiments, several examples of the holder 8 will be described with reference to Figs. 7 to 19. As an example, the first holder 8A, the second holder 8B, and the third holder 8D will be described. Note that options are not shown in the figures other than Fig. 12. <First holder>

[0058] FIG. 7 is a perspective view of the first holder 8A attached to the long frame 231. FIG. 8(a) is a side view for explaining the first holder 8A in a state where the option is removed. FIG. 8(b) is a side view for explaining the first holder 8A in a state where the option is attached. FIG. 9(a) is a plan view for explaining the first holder 8A in a state where the option is removed. FIG. 9(b) is a plan view for explaining the first holder 8A in a state where the option is attached. FIG. 10 is a plan view showing a state of the first holder 8A in a position other than a position where the option can be supported. Note that FIGS. 9 to 10 show the movable member 83 other than the stopper portion 10 and the cover C1 in a line diagram so that the state of the stopper portion 10 inside the movable member 83 can be visualized, and FIG. 8 shows the movable member 83 other than the stopper portion 10 in a line diagram, omitting the cover C1. Also, FIGS. 8 to 10 show the stopper portion 10 in a semi-transparent state so that the internal state can be visualized. Moreover, the options are not shown in the figures.

[0059] As shown in FIG. 7 and other figures, in the first holder 8A, a movable member 83(M) is rotatably connected to a fixed member 81(F) via a connecting shaft 85.

[0060] The fixed member 81 has an arm 81a, a joint 81b, and a connecting portion 87. One end of the arm 81a extending outward in the width direction is fixed to the long frame 231 by the joint 81b, and the other end of the arm 81a is connected to the movable member 83 via the connecting portion 87. In the illustrated example, the arm 81a is provided parallel to the width direction, but is not limited to this.

[0061] The movable member 83 has a cylindrical movable part main body 832 having a support hole 7 penetrating therethrough in the vertical direction, and an arm 834 extended from the movable part main body 832. The movable part main body 832 is provided at one end of the arm 834, and a cylindrical part 834a through which the connecting shaft 85 can be inserted in the vertical direction is provided at the other end of the arm 834. As shown in the illustrated example, a cover C1 that covers part of the movable part main body 832 and the arm 834 may be provided.

[0062] The connecting portion 87 is a portion that connects the fixed member 81 and the movable member 83. For example, one end of the connecting portion 87 is formed to fix the arm 81a, and the other end is formed with upper and lower connecting pieces 871 that sandwich the movable member 83. The upper and lower connecting pieces 871 are each provided with an insertion hole (not shown) through which the connecting shaft 85 is inserted in the up-down direction.

[0063] The tip of the upper connecting piece 871 in the longitudinal direction of the fixed member 81 is formed in a substantially semicircular shape in a plan view and has an arc-shaped outer edge 872. In the illustrated example, when attached to the long frame 231, the outer edge 872 is located at the tip of the fixed member 81 in the width direction. The outer edge 872 is formed in an arc shape concentric with the connecting shaft 85 so as to follow the line along which the movable part main body 832 of the movable member 83 rotates about the connecting shaft 85 moves, and a recess 876 is formed as a first positioning portion at approximately the center of the outer edge 872 and at a position along the longitudinal direction of the fixed member 81. The recess 876 is provided so as to follow the width direction of the bed 1.

[0064] The movable member 83 is provided with a stopper portion 10. Specifically, as shown in FIG. 8 and the like, the stopper portion 10 includes a fixed portion 13 fixed to an arm 834 and a sliding portion 11 that can slide in the longitudinal direction of the fixed portion 13. The fixed portion 13 is provided with a spring 132 as an elastic member in the longitudinal direction, and the sliding portion 11 is formed with a pressing portion 115 that is biased by the spring 132 toward the front in the longitudinal direction (toward the support hole 7). In addition, a tongue-shaped protrusion 111 is formed as a first engagement portion at one end of the sliding portion 11 in the longitudinal front direction, and a convex portion 113 that protrudes downward as a second engagement portion is formed at the other end of the sliding portion 11 in the longitudinal rear direction. In other words, the sliding portion 11 slides in the longitudinal direction relative to the fixed portion 13, so that the protrusion 111 and the convex portion 113 move back and forth in the longitudinal direction of the stopper portion 10.

[0065] An opening 832a is formed in the movable part main body 832, into which the protrusion 111 of the sliding part 11 can be inserted. When the option is removed from the first holder 8A, the sliding part 11 is biased forward in the longitudinal direction (toward the support hole 7) relative to the fixed part 13 by the spring 132, and the protrusion 111 protrudes from the opening 832a to the inside of the support hole 7.

[0066] When an option is attached to the first holder 8A and its supported portion (for example, the leg portion 9b of the side fence 9) is inserted into the support hole 7, the supported portion presses the protrusion 111 outward from the support hole 7, and the pressing portion 115 resists the bias of the spring 132, so that the sliding portion 11 moves to the longitudinal rear (connecting shaft 85 side) of the fixed portion 13. As a result, as shown in FIG. 7, the convex portion 113 of the sliding portion 11 is accommodated in the concave portion 876 of the outer edge portion 872, and in this state, the movable member 83 is fixed to the fixed member 81. In this state, the position of the support hole 7 relative to the bed 1 is fixed to the position P2 where the option can be supported. In the illustrated example, since the concave portion 876 is located along the longitudinal direction of the fixed member 81 as described above, the movable member 83 is fixed in the direction along the fixed member 81. The position of the support hole 7 is fixed in the direction along the width direction of the bed 1 relative to the fixed member 81.

[0067] 10, for example, since the outer edge 872 is formed in an arc shape, the sliding part 11 cannot move rearward in the longitudinal direction of the movable member 83 except for the recess 876, and the protrusion 111 in the insertion hole 7 gets in the way, preventing the insertion of the supported part of the option into the insertion hole 7. Therefore, the movable member 83 is not fixed to the fixed member 81 at positions other than position P2 where the option can be supported.

[0068] When the first holder 8A is in the stored state, the movable member 83 is stored under the bottom 3 in a plan view. In the illustrated example, the stored state is when the movable member 83 is approximately parallel to the long frame 231. Therefore, in the stored state, the width of the bed 1 is approximately equal to the width of the bottom 3.

[0069] Furthermore, when the first holder 8A is in a movable state, at least the movable part main body 832 of the movable member 83 is located outward in the width direction from the outer edge 3a of the bottom 3, and the movable member 83 is positioned and fixed to the fixed member 81. Therefore, in the movable state, the width of the bed 1 is wider than the width of the bottom 3.

[0070] In the illustrated example, a cover C1 is provided on the movable member 83. The cover C1 covers the movable part main body 832 and a part of the arm 834, and prevents the stopper part 10 from falling off from the movable member 83. However, the cover C1 is not an essential component. Also, the movable member 83 may be provided with a means for preventing the stopper part 10 from falling off instead of the cover C1. <Modification of the first holder>

[0071] A modified example of the first holder 8A will be described. Fig. 11 is a plan view showing a modified example of the first holder. In the following description, the modified example of the first holder 8A will be referred to as holder 8F, and the same parts as those of the holder 8A will be denoted by the same reference numerals.

[0072] In the holder 8F, a connecting portion 187 is used instead of the connecting portion 87. The connecting portion 187 differs from the connecting portion 87 in that a plurality of recesses 1876 are formed as positioning portions in a connecting piece 1871 on the upper side of the connecting portion 187, but is otherwise similar to the connecting portion 87.

[0073] The upper connecting piece 1871 has an outer edge 1872 formed in an arc shape so as to guide the movement of the movable part main body 832 which rotates around the connecting shaft 85. A plurality of recesses 1876 are formed in the outer edge 1872. In the illustrated example, two recesses 1876 are formed in the outer edge 1872 at positions on the outer edge 1872 a predetermined distance away from a position along the longitudinal direction of the fixed member 81. In other words, each recess 1876 is formed at a predetermined angle from a position along the width direction of the bed 1.

[0074] When the holder 8F is in a movable state, the movable member 83 is positioned and fixed to the fixed member 81 with the convex portion 113 housed in one of the concave portions 1876. The movable member 83 is positioned to the fixed member 81 so as to have a predetermined angle.

[0075] This allows the position of the support hole 7 to be changed in the length direction of the bed 1 without changing the attachment position of the holder 8F, for example, as shown in Fig. 12. This also allows the positions of options to be arranged in the same way relative to predetermined positions (for example, the positions of the front and rear ends of the bed 1 where the headboard 4 and footboard 5 are arranged, the center position in the length direction, etc.) in beds of different lengths or beds that can be changed or selected to different lengths, even if the length of the bed is changed. <Second Holder>

[0076] FIG. 13(a) is a perspective view showing a part of the second holder 8B when an option is removed. FIG. 13(b) is a perspective view showing a part of the second holder 8B when an option is attached. FIG. 14 is a view showing a part of the second holder 8B in a stored state. FIG. 15 is a plan view showing the second holders 8B and 8C attached to the long frame 231 in a movable state. FIG. 16 is a plan view showing the second holders 8B and 8C attached to the long frame 231 in a stored state. Note that FIGS. 13 and 14 show the movable member 84 other than the stopper portion 40 in a line diagram so that the state of the connecting shaft inside the movable member 84 can be visualized, and the lines inside the movable member 84 are shown with dotted lines. Also, the connecting portion 88 is shown in a semi-transparent state so that the internal state can be visualized.

[0077] 15 and other drawings, in the second holder 8B, a fixed member 82(F) and a movable member 84(M) are connected via a connecting shaft 86. The fixed member 82 has an arm 82a, a joint 82b, and a connecting portion 88. In the fixed member 82, one end of the arm 82a extending outward in the width direction is fixed to the long frame 231 by the joint 82b, and the other end of the arm 82a is connected to the movable member 84 via the connecting portion 88.

[0078] 13 and other drawings, the movable member 84 has a cylindrical movable part main body 842 having a support hole 7, and an arm 844 extending from the movable part main body 842. One end of the arm 844 is provided with the movable part main body 842, and the other end of the arm 844 is provided with a cylindrical part 844c through which the connecting shaft 86 can be inserted in the up-down direction.

[0079] The connecting portion 88 is a portion where the fixed member 82 and the movable member 84 are connected. For example, one end of the connecting portion 88 fixes the arm 82a (not shown), and the other end is formed with upper and lower connecting pieces 881 that sandwich the movable member 84. The upper and lower connecting pieces 881 are each provided with an insertion hole through which the connecting shaft 86 is inserted in the up-down direction (not shown). A notch 883 that is open forward is formed at the front in the longitudinal direction of the upper connecting piece 881.

[0080] The connecting piece 881 has a first locking portion 887 formed on one side in the longitudinal direction thereof for restricting rotation in the direction in which the movable member 84 transitions to the movable state (movement direction) when the second holder 8B transitions from the stored state to the movable state. In the illustrated example, the first locking portion 887 is formed as a wall erected along the longitudinal direction of the connecting piece 881, between the upper and lower connecting pieces 881, in front of the insertion hole (connecting shaft 86) in the longitudinal direction of the connecting piece 881. In other words, the first locking portion 887 of the second holder 8B is formed approximately parallel to the arm 885.

[0081] The other side in the longitudinal direction of the connecting piece 881 does not have anything to restrict the rotation of the movable member 84. Therefore, the tip of the arm 885 becomes the second locking portion 882 that restricts the rotation of the movable member 84 in the direction of transition to the stored state (storing direction). That is, in the stored state of the second holder 8B, the movable member 84 is locked by the second locking portion 882.

[0082] As shown in FIG. 13 and other figures, the stopper portion 40 is provided inside the arm 844 of the movable member 84. The stopper portion 40 has a stopper body 45 and a fixed shaft 44 that rotatably fixes the stopper body 45 to the arm 844. The fixed shaft 44 is fixed to both side walls of the arm 844 in a direction opposite to the longitudinal direction of the arm 844. The stopper body 45 has a hole (not shown) through which the fixed shaft 44 is inserted, and a first piece 41 located in front of the fixed shaft 44 in the longitudinal direction of the arm 844 in a state fixed by the fixed shaft 44, and a second piece 42 located in the rear of the arm 844 in the longitudinal direction. The first piece 41 is formed in a shape that can be inserted into the insertion hole 7 through an opening 844b formed in the movable body 842. The second piece 42 is formed in a shape that can protrude from an opening 844a formed in the upper part of the arm 844.

[0083] In the movable state, as shown in Fig. 13, for example, the rotation of the second holder 8B in the movement direction of the movable member 84 is stopped by the first locking portion 887. At this time, the opening 844a of the arm 844 and the notch portion 883 communicate with each other. When the option is removed, as shown in Fig. 13(a), the first piece 41 of the stopper portion 40 is inserted into the insertion hole 7 through the opening 844b, and the second piece 42 does not protrude from the opening 844a and is held within the arm 844.

[0084] Furthermore, when the optional held portion is inserted into the support hole 7, the first piece 41 is pressed against the held portion, causing the stopper body 45 to rotate around the fixed shaft 44. As a result, as shown in Fig. 13(b), the first piece 41 is housed in the arm 844, and the second piece protrudes from the opening 844a and is inserted into the notch 883, and the movable member 84 is positioned and fixed relative to the fixed member 82.

[0085] In the stored state, as shown in Fig. 14, for example, the second holder 8B is stopped from rotating in the moving direction of the movable member 84 by the second locking portion 882. At this time, the communication between the opening 844a of the arm 844 and the notch portion 883 is released. The state of the stopper portion 40 is the same as when the option is removed as shown in Fig. 13(a).

[0086] In this example, the fixed member 82 and the movable member 84 are positioned so as to be aligned with each other, in other words, the movable member 84 is positioned so as to face the bed 1 in the longitudinal direction. <Modification of the second holder>

[0087] In the second holder 8B, in the movable state, the fixed position of the movable member 84 relative to the fixed member 82 and the length of the movable member 84 can be changed as appropriate. In the following description, a modified example of the second holder 8B is referred to as holder 8C, and parts similar to those of holder 8B are described using the same reference numerals.

[0088] The first locking portion 889 is formed so that, in the movable state, the movable member 84(M) of the holder 8C is fixed in a direction different from the longitudinal direction of the fixed member 82 (in the illustrated example, a direction different from the width direction). For example, in the illustrated example, the first locking portion 889 is formed as a wall erected in a direction different from the longitudinal direction of the connecting portion 88 and the fixed member 82. This eliminates the need to limit the mounting position of the holder 8C.

[0089] In this case, as shown in Fig. 20 etc., it is desirable to adjust the length of the arm 844 of the movable member 84 so that the distance between the support hole 7 at the position where the option can be attached and the long frame 231 becomes a predetermined distance L3. It is also desirable to adjust the length of the arm 844 of the movable member 84 so that the distance between the support hole 7 at the position where the option can be attached and the outer edge 3a of the bottom 3 becomes a predetermined distance L2. In this way, the position of the support hole 7 can be determined without having to consider the attachment position of the fixed member 82 of the long frame 231. <Third Holder>

[0090] Fig. 17(a) is a side view showing a part of the third holder 8D when an option is attached. Fig. 17(b) is a side view showing a part of the third holder 8D when an option is removed. Fig. 18 is a diagram showing the third holder 8D in a stored state. Note that Figs. 17-18 show movable members and connecting parts other than the stopper part 70 in a line diagram so that the state of the stopper part can be visualized, and the internal lines of each member are shown with dotted lines.

[0091] As shown in FIG. 17 and other figures, the third holder 8D is fixed to the long frame 231 so as to be extendable outward in the width direction from the side of the main frame 23. In the third holder 8D, for example, the movable member 60 is slidably connected to the fixed member 50. The fixed member 50 has a base end (inner end) of a hollow arm 51 extending outward in the width direction, which is fixed to the long frame 231 (not shown). The tip end (outer end) of the arm 51 is connected to the movable member 60. The movable member 60 has a hollow arm 62 provided inwardly from the tip end of the arm 51 of the fixed member 50 so as to be slidable in the width direction, and a cylindrical movable part main body 61 located at the tip end (outer end) of the arm 62 and having a support hole 7. A hole 511 is formed in the bottom surface of the arm 51.

[0092] The movable member 60 is provided with a stopper portion 70. The stopper portion 70 has a stopper body 71 disposed along the lower side of the arms 51, 62, and supported by a shaft 72 passing through both side walls of the arm 62. A protrusion 73 is formed on the outer end of the stopper body 71 so as to be insertable from below into the support hole 7 of the movable part body 61. A protrusion 74 is formed on the inner end of the stopper body 71 so as to be insertable into the hole 511 when the arm 62 is positioned at a predetermined position relative to the arm 51.

[0093] In the stored state, the third holder 8D may be stored under the bottom 3 in a plan view. In the stored state, as shown in Fig. 18, for example, the protrusion 74 of the stopper body 71 is out of the hole 511, and the movable member 60 is slid inward in the width direction (of the bed 1) relative to the fixed member 50. That is, in the stored state, the protrusion 74 is located inward in the width direction (of the bed 1) than the hole 511. In the stored state, the width of the bed 1 is approximately equal to the width of the bottom 3.

[0094] In the movable state, at least the movable part main body 61 of the third holder 8D is located outward in the width direction (of the bed 1) from the outer edge of the bottom 3. When shifting from the stored state to the movable state, as shown in Fig. 17(b), the movable member 60 slides outward in the width direction (of the bed 1) relative to the fixed member 50, and the protrusion 74 can be inserted into the hole 511 in the bottom surface of the fixed member 50.

[0095] In this state, when the supported part of the option is inserted into the insertion hole 7 (not shown), as shown in Fig. 17(a), the supported part presses the protrusion 73 downward from above, and the stopper body 71 rotates around the shaft 72, causing the protrusion 74, which has moved upward, to be inserted into the hole 511, and the movable member 60 is fixed to the fixed member 50. Note that with the option attached, the width of the bed 1 is wider than the width of the bottom 3. <Modification of the third holder>

[0096] 19 is a diagram showing a modified version of the third holder. The third holder is capable of changing the dimension in the width direction (of the bed 1) in the movable state. In the following description, the modified version of the third holder 8D is referred to as holder 8E, and the same parts as those of holder 8D are denoted by the same reference numerals.

[0097] In the third holder 8E, a plurality of holes through which the protrusions 74 are inserted are formed at a predetermined interval on the bottom surface of the fixed member 50. For example, in the example of Fig. 19, two holes 513, 515 are formed at a predetermined interval on the bottom surface of the fixed member 50 in the longitudinal direction. This allows the third holder 8E to adjust the position of the support hole 7 (of the bed 1) in the width direction in the movable state. In other words, even when the third holder 8E is applied to various beds with different bed widths, options can be attached to appropriate positions from the bottom side.

[0098] The bed 1 may be provided with, for example, a plurality of types of holders 8 as described above. For example, the bed 1 shown in Figs. 4, 5, etc. has five holders on each long frame 231. These holders are configured such that the front and rear ends in the longitudinal direction are second holders 8C, the second holders 8B are adjacent to them, and the first holder 8A is in the center. Since the second holders 8C are at the front and rear ends in the longitudinal direction, the movable member 84 is fixed in a direction different from the longitudinal direction of the fixed member 82 and also different from the width direction. Therefore, it can be configured not to interfere with the caster support parts 213 at the four corners.

[0099] In this embodiment, the following configuration is adopted.

[0100] (1) According to a first aspect, a bed 1 has a width direction and a length direction, and an option is removably attached to a side of the bed 1, and includes a bed frame 2, a bottom 3 arranged on the bed frame 2, a support hole 7 that supports the option at a first position outside the outer edge of the bottom 3 in the width direction, and a holder 8 connected to the side of the bed frame 2 and having a support portion. The support hole 7 is movable between the first position P2 where the option can be attached and a second position that is inward in the width direction from the first position P2, and the holder 8 has a stopper portion that fixes the support hole 7 to the first position P2 in response to the option when the option is attached to the support hole 7 at the first position P2. Therefore, the position of the support hole for attaching the option can be changed, and when the option is attached, the support hole 7 can be fixed so as not to move from that position by the operation of the stopper.

[0101] (2) The holder 8 is configured to make it impossible to attach an option to the support hole 7 when the support hole 7 is in a position other than the first position. Therefore, the holder 8 can prevent an option from being attached in a position other than a position where the option can be attached.

[0102] (3) The bed has a plurality of first positions P2 that are different in the width direction, and the support hole 7 is further movable between the plurality of first positions, and an option can be attached to the support hole 7 at each of the plurality of first positions, and the stopper portion is configured to be able to fix the support hole 7 at each of the positions. Therefore, the holder 8 is provided with positions in the width direction of the bed where a plurality of options can be attached.

[0103] (4) The bed has a plurality of first positions P2 that are different in the length direction, and the support hole 7 is further movable between the plurality of first positions P2, and an option can be attached to the support hole 7 at each of the plurality of first positions P2, and the stopper portion is configured to be able to fix the support hole 7 at each of the positions. Therefore, the holder 8 can be provided with positions in the length direction of the bed where a plurality of options can be attached.

[0104] (5) Bed 1 has a plurality of support holes 7, and has a plurality of holders 8 each having a plurality of support holes 7, the distance between a plurality of supported parts of the option is a first distance L1, the distance between the plurality of support holes 7 supporting the plurality of supported parts is a distance corresponding to the first distance L1 when the plurality of support holes 7 are in first position P2, and when the option is attached to the plurality of support holes 7, the plurality of support holes 7 are each fixed to first position P2 in response to each of the plurality of supported parts. Thus, bed 1 has a plurality of holders 8, and options having a plurality of supported parts can be attached and fixed.

[0105] (6) When at least one of the multiple support holes 7 supporting the multiple supported parts of the option is in a position other than the first position P2, the distance between the multiple support holes 7 is different from the first distance L1. This makes it impossible to attach the option when any of the multiple support holes 7 corresponding to the multiple supported parts of the option is deviated from the first position. In other words, an option with multiple supported parts can be attached and fixed in an appropriate position.

[0106] (7) The holder 8 has a fixed member F fixed to the side of the bed frame 2 and a movable member M movably connected to the fixed member F, and the support hole 7 is provided in the movable member M. This allows the position of the support hole 7 to be movable while the support hole 7 is fixed to a predetermined position on the side of the bed frame 2.

[0107] (8) The stopper portion is movably connected to the movable member M, and is configured to move in engagement with the option when the option is attached to the support hole 7 located at the first position P2, and to fix the support hole 7 to the first position by engaging with the fixing member F. This makes it possible to fix the support hole 7 with a simple configuration.

[0108] (9) The movable member M has an arm, one end of which is rotatably connected to the fixed member F, and the other end of which is provided with a support hole 7. This allows the support hole 7 to be rotatable on the side of the bed frame 2.

[0109] (10) The movable member M includes an arm, which is slidably connected to the fixed member F, and which is provided with a support hole 7. This allows the support hole 7 to be slidably movable along the side of the bed frame 2.

[0110] (11) According to a second aspect, a bed 1 has a width direction and a length direction, and an option is removably attached to a side of the bed, the bed 1 comprises a bed frame 2, a bottom 3 arranged on the bed frame, a support hole 7 for supporting the option outside an outer edge 3a of the bottom 3 in the width direction, and a holder 8 connected to a side of the bed frame 2 and having the support hole 7. The support hole 7 is movable between a plurality of different first positions P2 in the width direction, and an option can be attached at each of the plurality of first positions P2. This allows the support hole 7 to be moved to a plurality of positions in the width direction of the bed 1. For example, in a bed 1 in which several width dimensions can be selected, an option can be attached at a different position in the width direction according to the bed width.

[0111] (12) Bed 1 includes a plurality of support holes 7 that support a plurality of supported parts of an option, and a plurality of holders 8 that are connected to the side of bed frame 2 and each holder has a plurality of support holes 7. The distance between the plurality of supported parts is a first distance L1, and the distance between the plurality of support holes 7 that support the plurality of supported parts is a distance that corresponds to the first distance L1 when the plurality of support holes 7 are in first position P2. When an option is attached to the plurality of support holes 7, each of the plurality of support holes 7 is fixed to first position P2 in response to each of the plurality of supported parts. In this way, in bed 1 in which support holes 7 can be moved to a plurality of positions in the width direction, an option having a plurality of holders 8 and equipped with a plurality of supported parts can be attached.

[0112] (13) When at least one of the multiple support holes 7 supporting the multiple supported parts is in a position P2 other than the first position, the distance between the multiple support holes 7 is different from the first distance L1. In this way, in a bed 1 in which the support holes 7 can be moved to multiple positions in the width direction, if any of the multiple support holes 7 corresponding to the multiple supported parts of the option are shifted from the first position, the option cannot be attached. In other words, an option with multiple supported parts can be attached in an appropriate position.

[0113] (14) The support hole 7 is movable between a plurality of first positions P2 and a second position inside the outer edge 3a of the bottom 3 in the width direction. This allows the support hole 7 to be stored under the bottom 3 in the bed 1 in which the support hole 7 can be moved to a plurality of positions in the width direction.

[0114] (15) According to a third aspect, a bed 1 has a width direction and a length direction, and includes a bed frame 2 to which an option is removably attached on a side of the bed, a bottom 3 arranged on the bed frame 2, a support hole 7 for supporting the option outside an outer edge 3a of the bottom 3 in the width direction, and a holder 8 connected to a side of the bed frame 2 and having the support hole 7. The support hole 7 is movable between a plurality of different first positions P2 in the length direction, and an option can be attached at each of the plurality of first positions P2. This allows the support hole 7 to be moved to a plurality of positions in the length direction of the bed 1. For example, in a bed 1 for which several length dimensions can be selected, an option can be attached at different positions in the length direction according to the length of the bed.

[0115] (16) Bed 1 includes a plurality of support holes 7 that support a plurality of supported parts of an option, and a plurality of holders 8 that are connected to the side of bed frame 2 and each have a plurality of support holes 7. The distance between the plurality of supported parts is a first distance L1, and the distance between the plurality of support holes 7 that support the plurality of supported parts is a distance that corresponds to the first distance L1 when the plurality of support holes 7 are in first position P2, and when an option is attached to the plurality of support holes 7, each of the plurality of support holes 7 is fixed to first position P2 in response to each of the plurality of supported parts. In this way, in bed 1 in which support holes 7 can be moved to a plurality of positions in the length direction, an option having a plurality of holders 8 and equipped with a plurality of supported parts can be attached.

[0116] (17) When at least one of the multiple support holes 7 supporting the multiple supported parts is in a position other than the first position P2, the distance between the multiple support holes 7 is different from the first distance L1. In this way, in a bed 1 in which the support holes 7 can be moved to multiple positions in the length direction, if any of the multiple support holes 7 corresponding to the multiple supported parts of the option are deviated from the first position, the option cannot be attached. In other words, an option with multiple supported parts can be attached in an appropriate position.

[0117] (18) The support hole 7 is movable between a plurality of first positions P2 and a second position inside the outer edge 3a of the bottom 3 in the width direction. This allows the support hole 7 to be stored under the bottom 3 in the bed 1 in which the support hole 7 can be moved to a plurality of positions in the length direction.

[0118] (19) According to a fourth aspect, a bed 1 has a width direction and a length direction, an option is detachably attached to a side of the bed, and includes a base frame 21, a main frame 23 arranged above the base frame 21 and movable up and down relative to the base frame 21, a bottom 3 arranged on the main frame 23, a support hole 7 for supporting an option outside an outer edge 3a of the bottom 3 in the width direction, and a holder 8 connected to a side of the main frame 23 and having the support hole 7. The holder 8 has a fixed member F fixed to the side of the main frame 23 and a movable member M movably connected to the fixed member F, the movable member M having the support hole 7, and the movable member M moving relative to the fixed member F allows the support hole 7 to move between a first position P2 where the option can be attached and a second position located inward in the width direction from the first position. The base frame 21 has a protruding portion protruding upward, the fixed member F is fixed to the side of the main frame 23 at a position spaced apart from the protruding portion in the lengthwise direction, the first position P2 is disposed at a position overlapping with the protruding portion in the lengthwise direction and spaced apart outward from the protruding portion in the widthwise direction, the second position is disposed at a position spaced apart from the protruding portion in the lengthwise direction, and the movable member M is configured to move the support hole between the first position P2 and the second position by moving through a path that bypasses the protruding portion. This allows the position of the support hole for mounting an option to be changed in the bed 1 whose bottom 3 moves up and down, and the support hole 7 can be prevented from contacting the protruding portion even when the main frame 23 is at the lowest position.

[0119] (20) The holder 8 has a stopper portion that fixes the support hole 7 at the first position P2 when an option is supported in the support hole 7. As a result, when an option is attached to the bed 1 in which the bottom 3 moves up and down, the stopper can be activated to fix the support hole 7 so that it does not move from that position.

[0120] (21) The protrusions are caster-equipped legs, legs, or supports that support these, which are provided at the four corners of the base frame. This prevents the support holes 7 from coming into contact with the casters, legs, or supports that support these, even when the main frame 23 is at the lowest position in the bed 1, in which the bottom 3 moves up and down.

[0121] (22) According to a fifth aspect, a bed 1 has a width direction and a length direction, and an option is detachably attached to a side of the bed. The bed 1 includes a bed frame 2, a bottom 3 arranged on the bed frame 2, a plurality of support holes 7 that support a plurality of supported parts of the option outside an outer edge 3a of the bottom 3 in the width direction, and a plurality of holders 8 connected to the side of the bed frame 2. Furthermore, the bed 1 includes a plurality of holders 8 each having a plurality of support holes 7. Each of the plurality of support holes 7 is movable between a first position P2 where the option can be attached and a second position located inward in the width direction from the first position, and a distance between the plurality of supported parts of the option is a first distance L1, and a distance between the plurality of support holes 7 that support the plurality of supported parts is a distance corresponding to the first distance L1 when the plurality of support holes 7 are at the first position P2. When at least one of the plurality of support holes 7 that support the plurality of supported parts is at a position other than the first position P2, the distance between the plurality of support holes 7 is different from the first distance L1. As a result, in bed 1 to which an option having multiple supported parts can be attached, if even one of the multiple support holes 7 is misaligned from first position P2, the option cannot be attached. In other words, an option having multiple supported parts can be attached in an appropriate position.

[0122] (23) The first position P2 has a plurality of first positions that are different in the width direction. This allows the position of the support hole 7 at which the option can be attached to the bed 1, which can accommodate an option having a plurality of supported parts, to be moved in the width direction.

[0123] (24) The first position P2 has a plurality of different first positions in the longitudinal direction. As a result, in a bed 1 to which an option having a plurality of supported parts can be attached, the position at which the option can be attached in the support hole 7 can be moved in the longitudinal direction.

[0124] (25) Each of the multiple holders 8 has a stopper portion that fixes the support hole 7 at the first position P2 when an option is supported in the support hole 7. This allows the multiple holders 8 to fix the support hole 7 at the first position in a bed 1 to which an option having multiple supported portions can be attached.

[0125] The above-described embodiments are merely examples for the purpose of explanation, and the scope of the present invention is not limited to these embodiments. The present invention can be embodied in various forms other than the above-described embodiments.

[0126] For example, in this embodiment, the holder of the bed is not limited to the above example. In addition, the side rail 9 having two legs 9b with a predetermined interval L1 is exemplified as an option, but is not limited to this. Furthermore, in the bed 1 of this embodiment, it is assumed that the options may be changed depending on the situation of the recumbent (patient), and there are various ways of attaching options, such as changing the number of side rails 9, changing the installation position, installing side rails with different lengths, installing side rails with different numbers and intervals of legs, and installing options other than side rails. In order to respond to these various situations, multiple support holes 7 may be provided in each long frame 231. In addition, the number and interval of the support holes on each side can be appropriately changed by design depending on various situations.

[0127] For example, in this embodiment, the fixed member F is formed in an arm shape along the width direction so as to be attached toward the outside of the long frame 231. However, this shape is not limited to this. Also, the holder 8 may have any configuration as long as the movable member M is movably attached to the outside of the side of the bed frame 2, and in such a configuration, the fixed member may be omitted.

[0128] Also, for example, in the present embodiment, an example has been shown in which the support portion that supports the supported portion of the option is the support hole 7, but any configuration may be used as long as it is a configuration in which the option can be attached.

[0129] Furthermore, the holder 8 having the position P2 at which multiple options can be supported is not limited to this example and may have any configuration. For example, the movable member M can be set to have the position P2 at which options can be supported, and the position P2 at which multiple options can be supported, in various variations such as a configuration in which the movable member M is rotatable with respect to the fixed member F and the movable member M itself is extendable in its length direction. [Explanation of symbols]

[0130] REFERENCE SIGNS LIST 1...bed 2...bed frame 3...bottom 4...headboard 5...footboard 6...caster 7...support hole 8...holder 8A, 8F...first holder 8B, 8C...second holder 8D, 8E...third holder 9...side fence 9a...side fence main body 9b...legs 10...stopper section 11...sliding section 13...fixed section 21...base frame 22...lifting mechanism 23...main frame 31...back bottom 31a...upper back bottom 31b...lower back bottom 32...waist bottom 33...knee / leg bottom 33a...upper leg bottom 33b...lower leg bottom 40...stopper section 41...first piece 42...second piece 44...fixed shaft 45...stopper main body 50...fixed member 51...arm 60...movable member 61...movable section main body 62...arm 70... stopper portion 71... stopper body 72... shaft 73... projection 74... projection 81... fixed member 81a... arm 81b... joint 82... fixed member 82a... arm 82b... joint 83... movable member 84... movable member 85... connecting shaft 87... connecting portion 88... connecting portion 111... projection 113... convex portion 115... pressing portion 211... vertical frame 213... caster support portion 213a... upper end portion 213b... lower end portion 231... long frame 232... short frame 832... movable part body 834... arm 842... movable part body 844... arm 871... connecting piece 872... outer edge portion 876... recess 881... connecting piece 883... notch portion 885... arm 887...First locking portion 187...Connecting portion 1871...Connecting piece 1872...Outer edge portion 1876...Recess F...Fixed member M...Movable member J...Connecting shaft P1...Mounting position P2...Position where option can be supported

Claims

1. A bed having a width direction and a length direction, and an option can be detachably attached to a side portion of the bed, Bed frame and A bottom disposed on the bed frame; A support portion that supports the option at a first position that is outward from an outer edge of the bottom in the width direction; A support device connected to a side of the bed frame and having the support portion; Equipped with The support portion is movable between the first position at which the option can be attached and a second position which is inward in the width direction from the first position, the support device has a stopper portion that moves in response to the option to fix the support portion at the first position when the option is attached to the support portion at the first position, bed.

2. the support device is configured to disable attachment of the option to the support when the support is in a position other than the first position.

2. The bed of claim 1.

3. A plurality of the first positions are different in the width direction, The support portion is further movable between the first positions. the support portion is capable of mounting the option at each of the plurality of first positions, The stopper portion is configured to be able to fix the support portion at each of the positions. A bed as claimed in claim 1 or 2.

4. The first position has a plurality of different positions in the longitudinal direction, The support portion is further movable between the first positions. the support portion is capable of mounting the option at each of the plurality of first positions, The stopper portion is configured to be able to fix the support portion at each of the positions. A bed as claimed in claim 1 or 2.

5. A plurality of the support portions are provided. A plurality of the support devices each having the plurality of support portions, a distance between the plurality of supported portions of the option is a first distance; a distance between the plurality of supporting portions that support the plurality of supported portions is the first distance when the plurality of supporting portions are in the first position; When the option is attached to the plurality of support parts, the plurality of support parts are fixed to the first position in response to the plurality of supported parts, respectively. A bed according to any one of claims 1 to 4.

6. when at least one of the plurality of supports supporting the plurality of optional supported portions is in a position other than the first position; The distance between the plurality of supports is different from the first distance.

6. A bed as claimed in claim 5.

7. The support device includes: A fixing part fixed to a side part of the bed frame; A movable part connected to the fixed part so as to be movable, The support portion is provided on the movable portion. A bed according to any one of claims 1 to 6.

8. The stopper portion is movably connected to the movable part, When the option is attached to the support part located at the first position, the fixing part is configured to move in association with the option and to fix the support part at the first position by engaging with the fixing part.

8. A bed as claimed in claim 7.

9. The movable part includes an arm, One end of the arm is rotatably connected to the fixed portion, The other end of the arm is provided with the support portion. A bed as claimed in claim 7 or 8.

10. The movable part includes an arm, The arm is slidably connected to the fixed portion, The arm is provided with the support portion. A bed as claimed in claim 7 or 8.

11. A bed having a width direction and a length direction, and an option can be detachably attached to a side portion of the bed, Bed frame and A bottom disposed on the bed frame; A support portion that supports the option on the outer side of the outer edge of the bottom in the width direction; A support device connected to a side of the bed frame and having the support portion; Equipped with The support portion is movable between a plurality of different first positions in the width direction, The option can be attached at each of the plurality of first positions. bed.

12. A plurality of supporting parts that support a plurality of supported parts of the option; A plurality of support devices are connected to the sides of the bed frame, each of the support devices having the plurality of support portions; a distance between the plurality of supported portions is a first distance, a distance between the plurality of supporting portions that support the plurality of supported portions is the first distance when the plurality of supporting portions are in the first position; When the option is attached to the plurality of support parts, the plurality of support parts are fixed to the first position in response to the plurality of supported parts, respectively.

12. A bed as claimed in claim 11.

13. When at least one of the plurality of supporting portions that support the plurality of supported portions is in a position other than the first position, The distance between the plurality of supports is different from the first distance.

13. A bed as claimed in claim 12.

14. The support portion is movable between the plurality of first positions and a second position inward of an outer edge of the bottom in the width direction. A bed according to any one of claims 11 to 13.

15. A bed having a width direction and a length direction, and an option can be detachably attached to a side portion of the bed, Bed frame and A bottom disposed on the bed frame; A support portion that supports the option outside an outer edge of the bottom in the width direction; A support device connected to a side of the bed frame and having the support portion; Equipped with The support portion is movable between a plurality of different first positions in the longitudinal direction, The option can be attached at each of the plurality of first positions. bed.

16. A plurality of supporting parts that support a plurality of supported parts of the option; A plurality of support devices are connected to the sides of the bed frame, each of the support devices having the plurality of support portions; a distance between the plurality of supported portions is a first distance, a distance between the plurality of supporting portions that support the plurality of supported portions is the first distance when the plurality of supporting portions are in the first position; When the option is attached to the plurality of support parts, the plurality of support parts are fixed to the first position in response to the plurality of supported parts, respectively.

16. A bed as claimed in claim 15.

17. When at least one of the plurality of supporting portions that supports the plurality of supported portions is in a position other than the first position, The distance between the plurality of supports is different from the first distance.

17. A bed as claimed in claim 16.

18. The support portion is movable between the plurality of first positions and a second position inward of an outer edge of the bottom in the width direction. A bed according to any one of claims 15 to 17.

19. A bed having a width direction and a length direction, and an option can be detachably attached to a side portion of the bed, A first frame; a second frame disposed above the first frame and movable up and down relative to the first frame; A bottom disposed on the second frame; A support portion that supports the option on the outer side of the outer edge of the bottom in the width direction; a support device connected to a side of the second frame and having the support portion; Equipped with the support device has a fixed part fixed to a side part of the second frame and a movable part connected to the fixed part so as to be movable, The movable portion has the support portion, The movable portion moves relative to the fixed portion, so that the support portion can move between a first position at which the option can be attached and a second position located inward in the width direction from the first position, The first frame has a protruding portion protruding upward, The fixing portion is fixed to a side portion of the second frame at a position separated from the protruding portion in the longitudinal direction, the first position is disposed at a position overlapping with the protruding portion in the length direction and at a position outwardly offset from the protruding portion in the width direction; the second position is disposed at a position offset from the protrusion in the longitudinal direction; The movable portion is configured to move the support portion between the first position and the second position by moving through a path that bypasses the protrusion. bed.

20. the support device has a stopper portion that fixes the support portion at the first position when the option is supported on the support portion, 20. A bed as claimed in claim 19.

21. The protrusions are casters, legs, or supports for supporting the casters, legs, or supports of the bed provided at the four corners of the first frame.

21. A bed as claimed in claim 19 or 20.

22. A bed having a width direction and a length direction, and an option can be detachably attached to a side portion of the bed, Bed frame and A bottom disposed on the bed frame; A plurality of support parts that support the plurality of optional supported parts on the outer side of the outer edge of the bottom in the width direction; A plurality of support devices connected to the sides of the bed frame; Equipped with The plurality of support devices each include the plurality of support portions, Each of the plurality of support portions is movable between the first position at which the option can be attached and a second position located inward in the width direction from the first position; a distance between the plurality of supported portions of the option is a first distance; a distance between the plurality of supporting portions that support the plurality of supported portions is the first distance when the plurality of supporting portions are in the first position; When at least one of the plurality of supporting portions that support the plurality of supported portions is in a position other than the first position, a distance between the plurality of supporting portions is different from the first distance. bed.

23. The first position includes a plurality of first positions that are different in the width direction.

23. A bed as claimed in claim 22.

24. The first position includes a plurality of different first positions in the longitudinal direction.

24. A bed as claimed in claim 22 or 23.

25. Each of the support devices has a stopper portion that fixes the support portion at the first position when the option is supported on the support portion. A bed according to any one of claims 22 to 24.

Images