Bed and Follower

Abstract

To provide a bed capable of easily assembling a side table.SOLUTION: A bed includes: a pair of main frames which extend in a back and forth direction and are separate in a horizontal direction; a bottom which can rise and fall relative to the pair of main frame; a following device following and moving as the bottom rises / falls; and a side table provided for the following device. The following device is rotatably provided only for one of the pair of main frames.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] FIELD OF THE INVENTION An embodiment of the present invention relates to a bed and a compliant device. [Background technology]

[0002] BACKGROUND ART A bed is known in which a side table is provided on a follower device that moves in response to the upright or tilted backrest (Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Utility Model Application Publication No. 6-75458 Summary of the Invention [Problem to be solved by the invention]

[0004] The side table described in Patent Document 1 is supported by both the left and right side frames, which may reduce the workability of assembly. For example, beds are often placed close to the wall in a room. In such cases, the workability of assembling the side table may be reduced.

[0005] An object of an embodiment of the present invention is to provide a bed and follower device that allows for easy assembly of a side table. [Means for solving the problem]

[0006] The bed according to the embodiment comprises a pair of main frames extending in the front-to-rear direction and spaced apart in the left-to-right direction, a bottom that can be raised and lowered relative to the pair of main frames, a follower device that moves in accordance with the raising and lowering of the bottom, and a side table provided on the follower device, and is characterized in that the follower device is rotatably provided on only one of the pair of main frames. [Effects of the Invention]

[0007] According to an embodiment of the present invention, a bed can be provided to which a side table can be easily assembled. [Brief explanation of the drawings]

[0008] [Figure 1] 1 is a perspective view showing a bed according to an embodiment of the present invention. [Figure 2] FIG. 2 is a plan view showing a state in which the bottom member, the side frame, and the side table have been removed. [Figure 3] FIG. 10 is a side view showing the state of the back bottom. [Figure 4] FIG. 4 is an enlarged side view of the follow-up device in FIG. 3(a). [Figure 5] FIG. 4 is an enlarged side view of the follow-up device in FIG. 3(c). [Figure 6] FIG. 4 is a perspective view of the follow-up device in FIG. 3(c) as seen obliquely from behind. [Figure 7] FIG. 4 is a perspective view of the follow-up device in FIG. 3(c) as seen obliquely from the front. [Figure 8] FIG. 2 is an exploded perspective view showing the follow-up device. [Figure 9] FIG. 10 is a side view showing a side table according to a modified example of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0009] A bed and a tracking device according to an embodiment of the present invention will be described with reference to FIGS.

[0010] FIG. 1 is a perspective view showing a bed according to an embodiment of the present invention. FIG. 2 is a plan view showing a state in which the bottom member, the side frames, and the side table have been removed.

[0011] The bed 10 shown in FIG. 1 is an electric bed that can be used in, for example, nursing homes, hospitals, and private homes, and can electrically adjust the height of the backrest, knee rest, etc. The bed 10 has a back bottom 30, knee bottom 34, and leg bottom 36 that can be raised and lowered. In the bed 10 shown in FIG. 1, the diagonally upper left side is the head side, and the diagonally lower right side is the foot side. In this embodiment, the direction between the head side and the foot side is defined as the front-to-rear direction. The bed 10 has a base frame 12, a main frame 14, side frames 16, the back bottom 30, the waist bottom 32, the knee bottom 34, the leg bottom 36, a tracking device 50, and a side table 60.

[0012] The base frame 12 is formed, for example, in a frame shape. The base frame 12 has legs 12a at its ends in the front-rear direction. The main frame 14 is located above the base frame 12. A pair of main frames 14 are provided spaced apart in the left-right direction (short direction) of the bed 10 and extend in the front-rear direction. The main frames 14 are supported by the base frame 12 via, for example, an elevating mechanism 44. The main frame 14 is movable up and down relative to the base frame 12 by the elevating mechanism 44.

[0013] The main frame 14 has a frame body 14a and a stay receiving portion 14b. The frame body 14a is, for example, a rectangular tube extending in the front-to-rear direction. The stay receiving portion 14b is located to the side of the back frame 21 (described later) and is provided on the frame body 14a. The stay receiving portion 14b has a stopper 14b1 that comes into contact with a main body portion 51b (described later) and a shaft portion 14b2 that screws onto a fastening member 51a that attaches the main body portion 51b to the stay receiving portion 14b. A stay 51 (described later) is supported on the stay receiving portion 14b.

[0014] The side frames 16 are provided to protrude in the left-right direction from the main frame 14. A fence or the like (not shown) is attached to the side frames 16. As shown in FIG. 1, two side frames 16 are provided spaced apart in the left-right direction (short direction) of the bed 10. The side frames 16 are provided as needed.

[0015] The bottom frame 20 is located inside the main frame 14 in the left-right direction and extends in the front-rear direction. In other words, the bottom frame 20 is arranged in parallel with the main frame 14. Two bottom frames 20 are provided spaced apart in the left-right direction (short side direction) of the bed 10. The bottom frames 20 support a plurality of bottom members 26, which will be described later.

[0016] The bottom members 26 are fixed onto the bottom frame 20, and a plurality of them are provided lined up in the front-to-rear direction on the main frame 14 and the bottom frame 20. Both left and right ends of the bottom members 26 protrude outward in the left-to-right direction beyond the main frame 14. Each bottom member 26 extends in the left-to-right direction across the bottom frames 20 that are spaced apart in the left-to-right direction. As shown in FIG. 1, in this example, ten bottom members 26 are provided. The top surfaces of the bottom members 26 form a support surface for a mattress (not shown), and support the mattress and the human body on the mattress.

[0017] The bottom frame 20 has a back frame 21 that constitutes the back bottom 30, a waist frame 22 that constitutes the waist bottom 32, a knee frame 23 that constitutes the knee bottom 34, and a leg frame 24 that constitutes the leg bottom 36. The back frame 21, the waist frame 22, the knee frame 23, and the leg frame 24 are provided in pairs, spaced apart in the left-right direction (short direction) of the bed 10.

[0018] The back bottom 30 has a back frame 21 and a bottom member 26 fixed onto the back frame 21. The back frame 21 is located on the front end side of the bed 10 and extends in the front-to-rear direction. The back frame 21 supports a plurality of bottom members 26 (for example, four bottom members 26) from the back side. The back bottom 30 supports the head and back of a user lying on the bed 10.

[0019] The back frame 21 can be raised or lowered (bent) relative to the lumbar frame 22 by the operation of the first drive device 40a. That is, the front end of the back frame 21 moves up and down with the rear end serving as a pivot point 21a by the operation of the first drive device 40a. This allows the back bottom 30 to be raised or lowered relative to the main frame 14.

[0020] The lumbar bottom 32 has a lumbar frame 22 and a bottom member 26 fixed onto the lumbar frame 22. The lumbar frame 22 is located behind the back frame 21 and extends in the front-to-rear direction. The lumbar frame 22 supports the bottom member 26 from the back side. The lumbar frame 22 is fixed to the main frame 14. The lumbar bottom 32 supports the lumbar region and buttocks of a user lying on the bed 10.

[0021] The knee bottom 34 has a knee frame 23 and a bottom member 26 fixed onto the knee frame 23. The knee frame 23 is located behind the waist frame 22 and extends in the front-to-rear direction. The knee frame 23 supports a plurality of bottom members 26 (for example, two bottom members 26) from the back side. The knee frame 23 is rotatably connected to the waist frame 22 and is rotatably connected to the leg frame 24. The knee bottom 34 supports the thighs of a user lying on the bed 10.

[0022] The leg bottom 36 has a leg frame 24 and a bottom member 26 fixed onto the leg frame 24. The leg frame 24 is located behind the knee frame 23 and extends in the front-to-rear direction. The leg frame 24 supports a plurality of bottom members 26 (for example, three bottom members 26) from the rear side. The leg frame 24 is bendable relative to the knee frame 23. The leg bottom 36 supports the lower legs of a user lying on the bed 10.

[0023] A backrest mechanism 40, a knee-raising mechanism 42, a lifting mechanism 44, and a control device 46 are provided below each bottom member 26. The backrest mechanism 40 is provided below the back bottom 30. The backrest mechanism 40 has a first drive device 40a, which is, for example, an electric cylinder. The backrest mechanism 40 raises and lowers the back frame 21 by operating the first drive device 40a.

[0024] The knee-raising mechanism 42 is provided behind the backrest mechanism 40. The knee-raising mechanism 42 has a second drive device 42a, which is, for example, an electric cylinder. The second drive device 42a is a drive device that moves the knee frame 23 and the leg frame 24 up and down. The knee frame 23 and the leg frame 24 are bent in a mountain fold shape by the operation of the second drive device 42a.

[0025] The lifting mechanism 44 is provided behind the knee-raising mechanism 42. The lifting mechanism 44 has a third drive device 44a, which is, for example, an electric cylinder. The lifting mechanism 44 is provided between the base frame 12 and the main frame 14. The lifting mechanism 44 raises and lowers the main frame 14 and the bottom frame 20 by operating the third drive device 44a. The lifting mechanism 44 can adjust the height dimension from the floor surface to the bottom member 26.

[0026] The control device 46 is provided behind the lifting mechanism 44. The control device 46 controls the operation of the first to third drive devices 40a, 42a, 44a. The control device 46 is connected to a remote control (not shown). The control device 46 operates the first to third drive devices 40a, 42a, 44a based on command signals transmitted from the remote control.

[0027] Next, the follow-up device 50 provided on the side of the bed 10 will be described.

[0028] Fig. 3 is a side view showing the state of the back bottom. Note that Fig. 3 shows the state with the side frames removed. Fig. 3(a) is a side view showing the state in which the back bottom is flat. Fig. 3(b) is a side view showing the state in which the back bottom is raised at 45 degrees. Fig. 3(c) is a side view showing the state in which the back bottom is raised at 75 degrees. FIG. 4 is an enlarged side view of the follow-up device in FIG. 3(a). FIG. 5 is an enlarged side view of the follow-up device in FIG. 3(c). FIG. 6 is a perspective view of the follow-up device in FIG. 3(c) as seen obliquely from behind. FIG. 7 is a perspective view of the follow-up device in FIG. 3(c) as seen obliquely from the front. FIG. 8 is an exploded perspective view showing the follow-up device.

[0029] As shown in FIG. 3, the bed 10 has a follower device 50 that moves in accordance with the raising and lowering of the bottom (in this example, the back bottom 30). The follower device 50 is provided between the main frame 14 and the back bottom 30. The follower device 50 is rotatably provided on only one of the pair of main frames 14. A side table 60 is provided on the follower device 50. As shown in FIG. 3, the follower device 50 and the side table 60 move diagonally upward and rearward when the back bottom 30 rises. The follower device 50 has a stay 51, an attachment portion 53, and a connection portion 56.

[0030] The stay 51 is rotatably provided on the main frame 14. Specifically, the stay 51 is rotatably provided on a stay receiving portion 14b of the main frame 14. The stay 51 has a fastening member 51a attached to a shaft portion 14b2 of the stay receiving portion 14b, a main body portion 51b that rotates around the fastening member 51a as a rotation fulcrum, and a rotating portion 51c that extends from the tip of the main body portion 51b toward the outside in the left-right direction of the bed 10.

[0031] The fastening member 51a passes through the base end (lower end) of the main body 51b in the left-right direction and extends toward the inside in the left-right direction of the bed 10. The fastening member 51a is made of, for example, a stepped bolt, and its tip side is screwed into the shaft portion 14b2 of the stay support portion 14b.

[0032] The main body 51b is formed, for example, of a rectangular tube, and its tip moves between a first position and a second position with the fastening member 51a as a pivot point. That is, the main body 51b is attached to the shaft 14b2 via the fastening member 51a. The first position is a state in which the main body 51b extends in the front-to-back direction when the back bottom 30 is flat (the state shown in FIG. 4). On the other hand, the second position is a state in which the main body 51b extends in the up-down direction when the back bottom 30 is upright (the state shown in FIG. 5). As shown in FIG. 4, when the main body 51b is in the first position, it contacts a stopper 14b1 provided on the stay receiving portion 14b.

[0033] The pivoting portion 51c extends outward in the left-right direction from the tip of the main body portion 51b. The mounting portion 53 is screwed to the tip of the pivoting portion 51c. This screw is, for example, a shoulder bolt. The pivoting portion 51c pivots up and down when the main body portion 51b moves between the first position and the second position.

[0034] The reinforcing portion 51d is provided between the main body portion 51b and the rotating portion 51c. The reinforcing portion 51d connects the main body portion 51b and the rotating portion 51c, thereby reinforcing the rotating portion 51c. As a result, for example, even if a downward force acts on the side table 60 when the main body portion 51b is in the second position, the rotating portion 51c is stably supported by the main body portion 51b and the reinforcing portion 51d.

[0035] The attachment portion 53 is provided on the tip side of the stay 51. A side table 60 is attached to the attachment portion 53. The attachment portion 53 is formed by bending a plate material. The attachment portion 53 is provided so as to cover the side frame 16. In this case, the gap between the attachment portion 53 and the side frame 16 is dimensioned to prevent fingers from getting pinched.

[0036] The mounting portion 53 is formed symmetrically in the front and rear directions. This allows the mounting portion 53 to be disposed on either the right or left side of the bed 10. The mounting portion 53 has a vertical portion 54 extending in the up-down direction and a horizontal portion 55 extending outward in the left-right direction from the upper end of the vertical portion 54. The horizontal portion 55 is located above the side frame 16, for example. A side table 60 is detachably attached to the horizontal portion 55.

[0037] The vertical portion 54 is located between the side frame 16 and the back bottom 30. The vertical portion 54 has a lower portion 54a, an upper portion 54b located above the lower portion 54a, and an extending portion 54c connecting the lower portion 54a and the upper portion 54b. That is, the vertical portion 54 is formed in a stepped shape by the lower portion 54a, the upper portion 54b, and the extending portion 54c. The extending portion 54c may be formed as needed. That is, when the tip positions of the pivoting portion 51c of the stay 51 and the connecting portion 56 (described later) in the left-right direction are the same, the lower portion 54a and the upper portion 54b may be continuous in the up-down direction.

[0038] The lower portion 54a is formed in a plate shape extending in the front-rear direction, and has a first mounting hole 54a1 at its front end to which the rotating portion 51c of the stay 51 is attached. The lower portion 54a also has a third mounting hole 54a2 at its rear end.

[0039] The first mounting hole 54a1 is used when mounting the tracking device 50 and the side table 60 on the right side of the bed 10. On the other hand, the third mounting hole 54a2 is used when mounting the tracking device 50 on the left side of the bed 10. When mounting the tracking device 50 on the left side of the bed 10, the third mounting hole 54a2 is located on the front end side. The first mounting hole 54a1 and the third mounting hole 54a2 are provided at symmetrical positions in the front and rear of the lower part 54a.

[0040] The upper portion 54b is formed in a plate shape extending in the front-rear direction, and has a second mounting hole 54b1 at its rear end to which the connecting portion 56 is attached. The upper portion 54b also has a fourth mounting hole 54b2 at its front end.

[0041] The second mounting hole 54b1 is used when mounting the tracking device 50 and the side table 60 on the right side of the bed 10. On the other hand, the fourth mounting hole 54b2 is used when mounting the tracking device 50 and the side table 60 on the left side of the bed 10. When mounting the tracking device 50 on the left side of the bed 10, the fourth mounting hole 54b2 is located on the front end side. The second mounting hole 54b1 and the fourth mounting hole 54b2 are provided at symmetrical positions in the front and rear of the upper part 54b.

[0042] 4, 5, and 8, the first mounting hole 54a1 and the second mounting hole 54b1 are located on a diagonal line of the vertical portion 54. That is, the second mounting hole 54b1 is located forward and above the first mounting hole 54a1. The third mounting hole 54a2 and the fourth mounting hole 54b2 have a similar configuration.

[0043] The connecting portion 56 connects the back bottom 30 and the mounting portion 53. As shown in FIG. 8, the connecting portion 56 has a first portion 57 that is attached to the back bottom 30, and a second portion 58 that extends from the first portion 57 toward the mounting portion 53. The connecting portion 56 is formed symmetrically in the front and rear directions. This allows the connecting portion 56 to be disposed on either the right or left side of the bed 10.

[0044] The first portion 57 is formed in a bent plate shape and has an L-shape made up of a contact portion 57a ​​that contacts the upper surface of the bottom member 26 and side portions 57b that extend downward from the outer sides of the contact portion 57a ​​in the left-right direction.

[0045] 6, the abutment portion 57a ​​extends in the front-to-rear direction across two adjacent bottom members 26 located at the rear of the four bottom members 26 that make up the back bottom 30. The first portion 57 is screwed to the bottom members 26. The first member 57 may also be screwed to the back frame 21 that makes up the back bottom 30.

[0046] The second portion 58 protrudes outward in the left-right direction from the center in the front-rear direction of the first portion 57. The second portion 58 is provided at a position corresponding to the second mounting hole 54b1 of the mounting portion 53. The second portion 58 has a protruding portion 58a protruding from the first portion 57 and a seat portion 58b provided at the tip of the protruding portion 58a.

[0047] The seat portion 58b has an internal thread that is threaded with a screw for connecting the mounting portion 53 and the connecting portion 56. This screw is, for example, a shoulder bolt. When the back bottom 30 is raised or lowered, the mounting portion 53 rotates relative to the screw.

[0048] As shown in FIGS. 6 and 7, an adjuster 59 may be provided between the mounting portion 53 and the connecting portion 56. The adjuster 59 is made of, for example, a resin material and is screwed into the third mounting hole 54a2. The adjuster 59 prevents, for example, a cable (not shown) from getting pinched by ensuring a gap between the vertical portion 54 and the first part 57. Furthermore, when, for example, a force acts on the side table 60 inward in the left-right direction, the adjuster 59 abuts against the side portion 57b to stabilize the side table 60. The adjuster 59 may be provided as needed.

[0049] The side table 60 is provided on the tracking device 50. Specifically, the side table 60 is detachably attached to the horizontal portion 55 of the attachment portion 53. The side table 60 has an item storage portion 60a and a lid portion 60b. The item storage portion 60a is formed in a box shape with an opening at the top. As shown in FIG. 6, the lid portion 60b closes the opening of the item storage portion 60a in an openable and closable manner.

[0050] In this case, the lid portion 60b may be opened and closed slowly using a rotary damper. Alternatively, the lid portion 60b may be opened and closed by sliding in a parallel direction. The lid portion 60b may be detachable from the item storage portion 60a. The lid portion 60b may be installed by shifting it above the item storage portion 60a. The removed lid portion 60b may be leaned against the item storage portion 60a.

[0051] The item storage section 60a can store items such as medicines and glasses, and can also serve as a place to rest a mobile terminal (not shown). A remote control (not shown) can also be attached. The item storage section 60a may also be provided with a light (not shown) that is turned on toward the user on the bed 10. The item storage section 60a may also be provided with a USB connector or an AC power outlet (neither of which are shown) that can charge a smartphone, tablet terminal, or the like. In this case, power may be supplied from the control device 46 to the USB connector or AC power outlet via a cable.

[0052] The lid portion 60b has a flat upper surface on which an item can be placed. The lid portion 60b also serves as a portion on which the user can place their hands when getting up or down from the bed 10. This allows the user to stably raise or lower the bed 10. The side table 60 may be integrated with the tracking device 50. The side table 60 does not have to have the item storage portion 60a.

[0053] The bed 10 according to the embodiment has the above-described configuration, and next, the operation of the follower device 50 that follows when the back bottom 30 of the bed 10 is raised or lowered will be described.

[0054] As shown in Figures 3(a) and 4, when the back bottom 30 is in a flat state, the main body 51b is in the first position. As a result, the side table 60 is located beside the arms of the user lying on the bed 10. This makes it easier for the user to store or place items on the side table 60.

[0055] When the user operates a remote control (not shown) to raise the back of the back bottom 30, the control device 46 extends the rod of the first drive device 40a. As a result, as shown in FIGS. 3(b) and 3(c), the bed 10 raises the back of the back bottom 30. In this case, the main body 51b of the follower device 50 rotates from the first position to the second position. As a result, the side table 60 moves diagonally upward and rearward following the raising of the back of the back bottom 30.

[0056] 4 and 5, the tracking device 50 forms a parallel link represented by a two-dot chain line B connecting the fastening member 51a, the first mounting hole 54a1, the second mounting hole 54b1, and the rotation fulcrum 21a of the back frame 21. When the back bottom 30 is tilted, the tracking device 50 is configured so that the mounting portion 53 rotates (slides) relative to the screws attached to the first mounting hole 54a1 and the second mounting hole 54b1. This allows the tracking device 50 to move the side table 60 while maintaining the horizontal state without tilting the mounting portion 53.

[0057] 3(b) and (c), the side table 60 is positioned to the side of the user's arms by the tracking device 50 even when the back bottom 30 is raised. This allows the side table 60 to be within reach of the user regardless of the state of the back bottom 30, improving the usability of the bed 10.

[0058] 3(c), even when the back bottom 30 is raised to the final position, the side table 60 is positioned forward of the rear end (line AA) of the bottom member 26 of the lumbar bottom 32. This prevents the tracking device 50 and the side table 60 from getting in the way when the user gets up or down in the bed 10, for example.

[0059] Furthermore, the user can place their hands on the side table 60 to climb up and down the bed 10. In this case, the front end of the tracking device 50 is attached to the main frame 14 via stays 51, and the rear end is attached to the back bottom 30 via a connection part 56. This allows the side table 60 to remain stable even when the user places their hands on it. Therefore, even if the tracking device 50 and the side table 60 are provided on the sides of the bed 10, it is possible to provide a bed 10 that is easy for the user to climb up and down.

[0060] When the user operates a remote control (not shown) to lower the back of the back bottom 30, the control device 46 contracts the rod of the first drive device 40a. This causes the bed 10 to lower the back of the back bottom 30. In this case, the main body 51b of the follower device 50 rotates from the second position to the first position. This causes the side table 60 to move diagonally downward and forward following the lowering of the back bottom 30.

[0061] The front end of the tracking device 50 is supported by only one of a pair of main frames 14 spaced apart in the left-right direction. The rear end of the tracking device 50 is supported on a side of the back bottom 30 extending in the left-right direction. This allows the worker to attach the tracking device 50 to the bed 10 without moving from the side where the tracking device 50 is to be attached. Therefore, even if the room in which the bed 10 is installed is small, the tracking device 50 and the side table 60 can be easily attached. The tracking device 50 is attached to the main frame 14 located laterally inward of the left and right ends of the side frames 16 and the bottom member 26. This prevents screws and other parts used to attach the tracking device 50 from protruding outside the bed 10. This prevents a user positioned to the side of the bed 10 from coming into contact with screws and other parts, thereby providing a bed 10 with improved safety.

[0062] FIG. 9 is a side view showing a side table according to a modified example of the present invention. In the above-described embodiment, an example has been described in which the side table 60 is detachably attached to the attachment portion 53 of the tracking device 50. However, the present invention is not limited to this. For example, as in a modified example shown in Fig. 9, the side table 65 may be movable (slidable) in the front-rear direction relative to the attachment portion 53. This can improve the usability of the side table 65.

[0063] In the above-described embodiment, an example has been described in which the tracking device 50 is provided on only one side, either left or right, of the bed 10. However, the present invention is not limited to this, and for example, the tracking device 50 and the side table 60 may be provided on both the left and right sides of the bed 10.

[0064] In the above-described embodiment, an example was described in which the follower device 50 is attached between the main frame 14 and the back bottom 30, and moves to follow the raising and lowering of the back bottom 30. However, the present invention is not limited to this example, and for example, the follower device 50 may be attached between the main frame 14 and another bottom (for example, the knee bottom 34), and move to follow the raising and lowering of the knee bottom 34.

[0065] Embodiments may include the following features. (Configuration 1) a pair of main frames extending in the front-rear direction and spaced apart in the left-right direction; a bottom that can be raised or lowered relative to the pair of main frames; a follower device that moves following the raising and lowering of the bottom; a side table provided in the tracking device; Equipped with A bed characterized in that the following device is rotatably mounted on only one of the pair of main frames. (Configuration 2) The tracking device is a stay rotatably provided on the main frame; a mounting portion provided at a tip end of the stay to which the side table is attached; a connection portion that connects the bottom and the mounting portion; The bed according to configuration 1, characterized in that it has (Configuration 3) The mounting portion is a vertical portion extending in the up-down direction; a first mounting hole provided in the vertical portion to which the stay is attached; a second mounting hole provided in the vertical portion to which the connecting portion is attached; and The bed according to configuration 2, wherein the second mounting hole is located forward and above the first mounting hole. (Configuration 4) The bottom is a back bottom, The back bottom includes a back frame and a bottom member fixed on the back frame, The bed according to configuration 2 or 3, wherein the connection portion is provided on the bottom member. (Configuration 5) The bed according to any one of configurations 2 to 4, wherein the attachment portion and the connection portion are formed symmetrically in the front and rear directions. (Configuration 6) The bed according to any one of configurations 2 to 5, wherein the main frame has a frame body and a stay receiving portion provided on the frame body and on which the stay is rotatably supported. (Configuration 7) A tracking device provided on the side of a main frame to which a side table is attached, a stay rotatably provided on the main frame; a mounting portion provided at a tip end of the stay to which the side table is attached; a connecting portion that connects the bottom and the mounting portion; A tracking device comprising:

[0066] The above-described embodiments are examples of realizing the present invention, and the present invention is not limited to these embodiments. For example, the present invention also includes embodiments in which some components are added, deleted, or modified in the above-described embodiments. [Explanation of symbols]

[0067] 10 beds 12 Base Frame 12a Legs 14 Mainframe 14a Frame body 14b Stay support 14b1 Stopper 14b2 Shaft 16 Side frame 20 Bottom Frame 21 Back frame 21a Rotating fulcrum 22 Lumbar frame 23 Knee frame 24 Leg frame 26 Bottom member 30 Back Bottom 32 Waist Bottoms 34 Knee Bottoms 36 Leg bottom 40 Backrest mechanism 40a First driving device 42 Knee lifting mechanism 42a Second drive unit 44 Lifting mechanism 44a Third drive unit 46 Control Device 50 Tracking Device 51 Stay 51a Fastening member 51b Main body 51c Rotating part 51d Reinforcement 53 Mounting part 54 Vertical section 54a lower part 54a1 First mounting hole 54a2 Third mounting hole 54b upper part 54b1 Second mounting hole 54b2 4th mounting hole 54c Extension 55 Horizontal 56 Connection 57 Part 1 57a Contact part 57b Side part 58 Part 2 58a Protrusion 58b Seat part 59 Adjuster 60 Side Table 60a Item storage area 60b Lid 65 Side Table

Claims

1. a pair of main frames extending in the front-rear direction and spaced apart in the left-right direction; a bottom that can be raised or lowered relative to the pair of main frames; a follower device that moves following the raising and lowering of the bottom; a side table provided in the tracking device; Equipped with the follow-up device is provided on one of the pair of main frames, The tracking device is a stay rotatably provided on the main frame; a mounting portion provided at a tip end of the stay to which the side table is attached; a connection portion that connects the bottom and the mounting portion; A bed characterized by having:

2. The mounting portion is a vertical portion extending in the up-down direction; a first mounting hole provided in the vertical portion to which the stay is attached; a second mounting hole provided in the vertical portion to which the connecting portion is attached; and The bed according to claim 1, wherein the second mounting hole is located forward and above the first mounting hole.

3. The bottom is a back bottom, The back bottom includes a back frame and a bottom member fixed on the back frame, The bed according to claim 1, wherein the connecting portion is provided on the bottom member.

4. The bed according to claim 1, wherein the attachment portion and the connection portion are formed symmetrically in the front and rear directions.

5. 2. The bed according to claim 1, wherein the main frame has a frame body and a stay receiving portion provided on the frame body and on which the stay is rotatably supported.

6. A tracking device provided on a bed having a pair of main frames extending in the front-to-rear direction and spaced apart in the left-to-right direction, and a bottom that can be raised or lowered relative to the pair of main frames, and to which a side table is attached, a stay rotatably provided on one of the pair of main frames; a mounting portion provided at a tip end of the stay to which the side table is attached; a connection portion that connects the bottom and the mounting portion; Equipped with A follow-up device that moves following the raising and lowering of the bottom.

Images