Lifting device

Abstract

To provide a lifting device which can be easily used.SOLUTION: A lifting device comprises: a column part which is adjacent to a bed and extends in a vertical direction; an arm which extends upward of the bed from an upper end of the column part; and a leg part on a lower end of the column part. The arm is rotatable between an upper position of the bed and one side position of the bed in a short direction, the leg part has a main frame extending in a longitudinal direction of the bed, and the main frame has an opening part on the one side position of the bed in the short direction, in the lifting device.SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] FIELD OF THE DISCLOSURE Embodiments of the present invention generally relate to lifting devices. [Background technology]

[0002] There is known a lifting device that is used when transferring a user on a bed to a wheelchair etc. Such a lifting device has legs below the bed (Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2019-92692 A Summary of the Invention [Problem to be solved by the invention]

[0004] The legs of the lifting device may be an obstacle for a caregiver when, for example, providing care to a user on a bed. Also, the legs of the lifting device may be an obstacle when, for example, using a desk for a bed.

[0005] An object of an embodiment of the present invention is to provide a lifting device that is easy to use. [Means for solving the problem]

[0006] The lifting device of this embodiment comprises a pillar portion extending in the vertical direction adjacent to the bed, an arm extending from the upper end of the pillar portion toward above the bed, and a leg portion provided at the lower end of the pillar portion, the arm being rotatable between a position above the bed and a position on one side of the short side of the bed, the leg portion having a main frame extending in the longitudinal direction of the bed, and the main frame forming an opening at the one side position on the short side of the bed. Effect of the Invention

[0007] According to an embodiment of the present invention, a lifting device that is easy to use can be provided. [Brief description of the drawings]

[0008] [Figure 1] 1 is a perspective view showing a state in which a lifting device according to an embodiment of the present invention is used in a bed. [Diagram 2] 2 is a perspective view showing a state in which an arm of the lifting device in FIG. 1 has been rotated. FIG. [Diagram 3] FIG. [Figure 4] FIG. [Diagram 5] 5 is a cross-sectional view of the arm in FIG. 4 as viewed from the direction of arrow AA. [Figure 6] FIG. 13 is an explanatory diagram of a case where a lifting unit is attached to an arm. [Figure 7] FIG. 13 is an explanatory diagram of a case where a lifting unit is attached to an arm. [Figure 8] 5 is a cross-sectional view of the lifting device in FIG. 4 as viewed from the direction of arrow BB. [Figure 9] 4 is an enlarged plan view showing the state in which the leg of the bed is placed on the base of the lifting device. FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] An elevating device according to an embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a perspective view showing a state in which a lifting device according to an embodiment of the present invention is used in a bed. FIG. 2 is a perspective view showing a state in which an arm of the lifting device in FIG. 1 has been rotated. FIG. 3 is a perspective view showing the lifting device. FIG. 4 is a side view of the lifting device. FIG. 5 is a cross-sectional view of the arm in FIG. 4 as viewed from the direction of arrow AA. FIG. 6 is an explanatory diagram of a case where the lifting unit is attached to the arm. FIG. 7 is an explanatory diagram of a case where the lifting unit is attached to an arm. FIG. 8 is a cross-sectional view of the lifting device in FIG. 4 as viewed from the direction of the arrow BB. FIG. 9 is an enlarged plan view showing a state in which the leg portion of the bed is placed on the base of the lifting device.

[0010] The bed 100 shown in FIG. 1 is an electric bed that can be used in, for example, nursing homes, hospitals, and private homes, and whose backrest, height, etc. can be electrically operated. Note that the bed 100 is not limited to an electric bed. The bed 100 includes legs 102, a bed platform 104, and a board 106. In the bed 100 shown in FIG. 1, the diagonally upper left side in FIG. 1 is the head side, and the diagonally lower right side in FIG. 1 is the foot side. In this embodiment, the direction between the head side and the foot side is the longitudinal direction of the bed 100, and the direction perpendicular to the longitudinal direction and the up-down direction of the bed 100 is the transverse direction of the bed 100.

[0011] The legs 102 are positioned below the bed 104 and support the bed 104. In this example, the legs 102 are placed on the base 66 of the lifting device 10. The bed 104 is a portion on which a mattress (not shown) is placed. The bed 104 may be raised and lowered in the vertical direction and the backrest may be raised and lowered, for example, by an actuator (not shown) provided below the bed 104. The bed 104 may also be tilted by raising and lowering the head side in the vertical direction (tilt operation) by an actuator.

[0012] The board 106 is disposed on the head side and the foot side in the longitudinal direction of the bed 100. The board 106 extends in the lateral direction of the bed 100. The board 106 prevents, for example, a mattress placed on the bed platform 104 from shifting, and also prevents the user from slipping off the mattress. The board 106 also serves as a part that is grasped by, for example, a user of the bed 100 when moving.

[0013] Next, the lifting device 10 will be described.

[0014] As shown in Figs. 1 and 2, the lifting device 10 is attached to a bed 100. The lifting device 10 lifts the user when transferring the user from a bed 104 to a wheelchair or the like, thereby reducing the burden on the caregiver. The lifting device 10 can be disposed on the head side or foot side of the bed 100. In this example, the lifting device 10 is disposed on the head side of the bed 100. The lifting device 10 includes a pillar portion 20, an arm 30, a lifting unit 40, and a leg portion 60.

[0015] The pillar portion 20 extends in the vertical direction adjacent to the bed 100. The pillar portion 20 is located on one longitudinal side (head side) of the bed 100 and extends in the vertical direction. The pillar portion 20 is disposed on the outer side of the board 106 in the longitudinal direction (opposite side to the bed platform 104). The pillar portion 20 extends from the floor surface upward beyond the upper end of the board 106.

[0016] The horizontal frame 21 is placed on the floor surface and extends from the lower end of the pillar 20 toward the other side in the short direction of the bed 100. The horizontal frame 21 is disposed on the outside of the head board 106 (the opposite side to the bed 104). The reinforcing frame 22 extends parallel to the horizontal frame 21 from a vertical midpoint of the pillar 20 and is bent toward the tip of the horizontal frame 21. The reinforcing frame 22 is formed in an L-shape between the pillar 20 and the horizontal frame 21. The horizontal frame 21 and the reinforcing frame 22 reinforce the pillar 20.

[0017] The arm 30 extends from the upper end of the pillar 20 toward the top of the bed 100. The arm 30 has an erect portion 31 extending upward from the pillar 20, an inclined portion 32 extending obliquely from the erect portion 31 toward the top of the bed 100, and an extending portion 33 extending horizontally from the inclined portion 32. Note that the arm 30 may not have the inclined portion 32, and may be formed, for example, in an L-shape by the erect portion 31 and the extending portion 33.

[0018] The lower end of the standing portion 31 is inserted into the pillar portion 20 and is rotatable relative to the pillar portion 20. The arm 30 is rotatable between an upper position of the bed 100 (position in FIG. 1) and one side position in the short side direction of the bed 100 (position in FIG. 2). In this case, the one side position in the short side direction of the bed 100 is a position where a user of the bed 100 transfers to a wheelchair or the like. In other words, the one side position in the short side direction of the bed 100 is the side where a caregiver cares for the user. The other side in the short side direction of the bed 100 forms, for example, a wall of a room in which the bed 100 is placed.

[0019] As shown in Fig. 5, a plurality of mounting parts 35 to which the lifting and lowering units 40 are attached are provided on the tip side of the extension part 33. These mounting parts 35 are provided spaced apart in the longitudinal direction of the extension part 33. These mounting parts 35 allow the position of the lifting and lowering unit 40 to be adjusted to suit the body type of a user on the bed 100. In this example, three mounting parts 35 are provided. The lifting and lowering unit 40 is attached to the mounting part 35 located at the tip end side of the extension part 33. Note that two mounting parts 35 may be provided, or four or more mounting parts 35 may be provided.

[0020] As shown in FIG. 5, the mounting portion 35 has a through hole 35a formed in the underside portion 33a of the extension portion 33, a pair of protrusions 35b provided inside the extension portion 33 on both sides in the width direction of the through hole 35a, and a convex portion 35c provided inside the extension portion 33 at the longitudinal end of the through hole 35a.

[0021] The pair of protrusions 35b and the convex portion 35c protrude upward from the lower surface portion 33a. The pair of protrusions 35b extend along the through hole 35a from the end portion opposite to the end portion in the length direction of the through hole 35a where the convex portion 35c is provided. The length dimension of the pair of protrusions 35b is shorter than the length dimension of the through hole 35a. As a result, a space is formed between the pair of protrusions 35b and the convex portion 35c.

[0022] The reinforcing member 37 is spaced apart from the inclined portion 32 and extends between the standing portion 31 and the extending portion 33. The reinforcing member 37 prevents the arm 30 from bending. In addition, the reinforcing member 37 is provided with a cover 38 that holds a cable (not shown) extending from the lifting unit 40.

[0023] The lifting unit 40 is provided on the tip side of the arm 30. The lifting unit 40 is attached to the attachment portion 35 of the extension portion 33. The lifting unit 40 includes a housing 41 and a protrusion 42 protruding upward from an upper surface portion 41a of the housing 41.

[0024] The protrusion 42 is located at the center of the upper surface portion 41a of the housing 41. The protrusion 42 extends upward from the upper surface portion 41a of the housing 41, and is formed into a T-shape with the tip side extending horizontally. The length of the horizontal portion on the tip side of the protrusion 42 is shorter than the length of the through hole 35a of the mounting portion 35 and is larger than the width of the through hole 35a.

[0025] As shown in FIG. 6, when the lifting unit 40 is attached to the attachment portion 35 of the arm 30, the protrusion 42 is inserted into the through hole 35a. Next, as shown in FIG. 7, the lifting unit 40 is rotated 90 degrees to place the protrusion 42 on the pair of protrusions 35b. Then, as shown by the arrow in FIG. 7, the lifting unit 40 is slid toward the tip side (the protrusion 35c side) of the extension portion 33. Thereafter, the protrusion 42 comes off the pair of protrusions 35b and falls into the space between the pair of protrusions 35b and the protrusion 35c. As a result, the lifting unit 40 is restricted from moving in the horizontal and rotational directions because the protrusion 42 is sandwiched between the pair of protrusions 35b and the protrusion 35c.

[0026] Finally, as shown in FIG. 5, the spacer 50 is sandwiched between the extension 33 and the housing 41. This restricts the up-down movement of the lifting unit 40. The lifting unit 40 can be removed from the arm 30 by performing the above-mentioned procedure in reverse. This allows the position of the lifting unit 40 to be easily adjusted according to the body type of the user on the bed 100 and the length of the bed 100. For example, the lifting unit 40 can be adjusted to the waist position of the user.

[0027] A motor (not shown) for winding up belt 44, the tip of which extends downward from bottom surface 41b of housing 41, a control unit (not shown) for controlling the motor, and the like are provided inside housing 41. Also, a remote control 52 for operating the motor and an emergency stop lever 53 for forcibly stopping the operation of the motor are connected to bottom surface 41b of housing 41.

[0028] Hanger 55 is provided at the tip (lower end) of belt 44. A sling sheet (not shown) for suspending the user of bed 100 is attached to hanger 55. A caregiver can raise and lower hanger 55 by operating remote control 52. For example, by rotating arm 30 while the user on bed 100 is suspended, the user can be easily transferred to a wheelchair or the like.

[0029] The legs 60 are located below the bed 100 and are provided at the lower ends of the pillars 20. The legs 60 prevent the lifting device 10 from floating up or shifting when a user is lifted by the lifting unit 40. For this reason, the legs 60 of the lifting device 10 are located below the bed 100 and extend in the longitudinal direction of the bed 100. The legs 60 have a subframe 63, a main frame 64, and a base 66.

[0030] The subframe 63 is placed on the floor surface and extends in the longitudinal direction of the bed 100. The subframe 63 extends to one side (head side) beyond the longitudinal center of the bed 100. A pair of subframes 63 are provided facing each other in the lateral direction of the bed 100.

[0031] One of the subframes 63 is located on the opposite side of the horizontal frame 21 across the pillar section 20, and extends in the longitudinal direction of the bed 100. One of the subframes 63 is provided on the pillar section 20. The other subframe 63 is located on the opposite side of the horizontal frame 21 across the reinforcing frame 22, and extends in the longitudinal direction of the bed 100.

[0032] The subframe 63 has a vertical portion 63a extending in the up-down direction and a horizontal portion 63b extending from the lower end of the vertical portion 63a in the longitudinal direction of the bed 100. The vertical portion 63a of one of the subframes 63 is fixed to the pillar portion 20. The vertical portion 63a of the other subframe 63 is fixed to the reinforcing frame 22.

[0033] 9, a plurality of base mounting holes 63b2 (e.g., female threads) for mounting the base 66 are formed in an upper surface portion 63b1 of the horizontal portion 63b. In addition, a plurality of mounting portions 63b4 for mounting the main frame 64 are provided in a side surface portion 63b3 of the horizontal portion 63b.

[0034] The main frame 64 is placed on the floor surface and extends in the longitudinal direction of the bed 100. The main frame 64 is located between a pair of sub-frames 63 spaced apart in the lateral direction of the bed 100. As shown in Fig. 8, the main frame 64 extends from the head side to the foot side of the bed 100 in a plan view seen from above. The main frame 64 is provided on the sub-frames 63. The main frame 64 has a first portion 64a, a second portion 64b, and a third portion 64c.

[0035] The first portion 64a is disposed between a pair of sub-frames 63. The first portion 64a is located on the head side of the bed 100. The first portion 64a extends from the front side of the pillar 20 toward the foot side of the bed 100, and is formed in an L-shape with a middle portion bent toward the other side in the short direction of the bed 100. The base end side of the first portion 64a is attached to a mounting portion 63b4 of one of the sub-frames 63. As a result, the load applied to the lifting unit 40 is transmitted from the arm 30 and the pillar 20 to the main frame 64 (first portion 64a) via the sub-frame 63. The position of the main frame 64 in the longitudinal direction of the bed 100 can be adjusted by selecting the mounting portion 63b4 of the sub-frame 63 to which the first portion 64a is attached.

[0036] The second portion 64b extends in a straight line from the tip of the first portion 64a in the longitudinal direction of the bed 100. That is, the second portion 64b is disposed at a position closer to the other side in the lateral direction of the bed 100. The other side in the lateral direction of the bed 100 is a position opposite to the position where the caregiver cares for the user on the bed 100. In other words, the second portion 64b is disposed on the opposite side to the direction in which the arm 30 rotates.

[0037] The third portion 64c is located on the foot side of the bed 100. The third portion 64c extends from the tip of the second portion 64b toward one side in the short direction of the bed 100, and is formed in an L-shape with a middle portion bent toward the other side (the foot side) in the longitudinal direction of the bed 100.

[0038] The main frame 64 has an opening 65 formed on one side in the short side direction of the bed 100 by the first to third portions 64a to 64c. That is, as shown in Fig. 8, the main frame 64 is formed in a concave shape in a plan view seen from above. Below the bed 104, a second portion 64b extending in the longitudinal direction of the bed 100 is disposed on the other side in the short side direction of the bed 100.

[0039] This allows the caregiver to care for the user from one side in the short direction of the bed 100 without the main frame 64 (second portion 64b) getting in the way. Also, as shown in FIG. 8, the legs 202 of the bed table 200 can be inserted into the opening 65. Therefore, the bed table 200 can be used without having to worry about the main frame 64 (second portion 64b). As a result, the lifting device 10 is easy to use.

[0040] The base 66 is located on one side (head side) in the longitudinal direction of the bed 100 and is attached to the subframe 63. The legs 102 located on one side in the longitudinal direction of the bed 100 are placed on the base 66. Two bases 66 are provided spaced apart in the short side direction of the bed 100. The pair of bases 66 have the same configuration. The bases 66 have a pedestal 66a, a mounting plate portion 66b, and a stopper 66c. Note that the bases 66 may have different shapes in the short side direction, for example, as long as they are capable of supporting the legs 102 of the bed 100.

[0041] The base 66a is placed on the floor. A mounting plate portion 66b is provided on the upper surface of the base 66a. The mounting plate portion 66b is provided on the upper surface of the base 66a and on an upper surface portion 63b1 of the horizontal portion 63b of the subframe 63. The mounting plate portion 66b has an elongated hole 66b1 extending in the longitudinal direction of the bed 100 at a position corresponding to the base mounting hole 63b2 of the horizontal portion 63b. The mounting plate portion 66b also has a plurality of stopper mounting holes 66b2 (e.g., female thread portions). A stopper 66c described below or another stopper not shown is attached to the stopper mounting hole 66b2.

[0042] The mounting plate portion 66b is fixed to the horizontal portion 63b by screwing a bolt 67 from the long hole 66b1 into the base mounting hole 63b2. The mounting position of the base 66 can be adjusted with respect to the subframe 63. Specifically, the position of the mounting plate portion 66b in the longitudinal direction of the bed 100 can be adjusted by selecting the base mounting hole 63b2 into which the bolt 67 is screwed, or by sliding the mounting plate portion 66b using the long hole 66b1.

[0043] The stopper 66c is provided on the placement plate portion 66b of the pair of bases 66. Two stoppers 66c are provided spaced apart in the longitudinal direction of the bed 100. The pair of stoppers 66c have the same configuration. The stopper 66c is provided from the placement plate portion 66b of one base 66 located on one side of the short side of the bed 100 to the placement plate portion 66b of the other base 66 located on the other side of the short side of the bed 100. The stopper 66c reinforces the lifting device 10 by connecting the bases 66 in the short side direction.

[0044] The stopper 66c is attached to the mounting plate portion 66b by screwing a bolt 68 into a stopper attachment hole 66b2 of the mounting plate portion 66b. As shown in Fig. 9, the stopper 66c prevents the leg portion 102 of the bed 100 from shifting in the longitudinal direction of the bed 100.

[0045] The stopper 66c is adapted to have an adjustable mounting position relative to the mounting plate portion 66b. Specifically, the mounting position of the stopper 66c can be adjusted by selecting a stopper mounting hole 66b2 into which the bolt 68 is screwed. This allows the position of the stopper 66c to be adjusted according to the shape and size of the leg portion 102 of the bed 100.

[0046] The restricting portion 69 extends upward from an end portion of the placement plate portion 66b opposite to the long hole 66b1. In this way, the restricting portion 69 prevents the leg portion 102 of the bed 100 from shifting in the short side direction of the bed 100.

[0047] Instead of the restricting portion 69, another stopper (not shown) may be used to prevent the leg 102 of the bed 100 from shifting. The other stopper is attached to the stopper mounting hole 66b2 by, for example, a bolt. The other stopper abuts against the side of the leg 102 to prevent the bed 100 from shifting in the short direction. The other stopper may be a bolt shaft protruding from the stopper mounting hole 66b2. That is, the bed 100 is prevented from shifting on the mounting plate portion 66b by using the stopper 66c, the restricting portion 69, and another stopper according to the shape and size of the leg 102.

[0048] When the other stoppers are not in use, they can be attached to the back surface of the mounting plate portion 66b. In this case, the unused stopper attachment holes 66b2 can be utilized. This makes it possible to prevent the other stoppers from being lost, and allows the lifting device 10 to be quickly adapted to the legs 102 of the bed 100 at the site where it is used.

[0049] The other base 72 is disposed on the other side (foot side) of the bed 100. On the other base 72, the legs located on the other side in the longitudinal direction of the bed 100 are placed. The other base 72 has a pedestal 72a, a placement plate portion 72b, and a restricting portion 72c. Although the other base 72 is not provided with a stopper in this example, a stopper 66c may be provided similarly to the base 66. The other base 72 may also be provided with another stopper.

[0050] The auxiliary frame 80 is disposed on the opposite side of the horizontal frame 21 across the pillar 20. That is, the auxiliary frame 80 extends toward one side in the short direction of the bed 100. The auxiliary frame 80 can stabilize the lifting device 10 when the arm 30 is rotated to one side position (the state in FIG. 2).

[0051] Thus, the lifting device 10 according to this embodiment includes a pillar 20 located on one side of the bed 100 in the longitudinal direction and extending in the vertical direction, an arm 30 extending from the upper end of the pillar 20 toward the top of the bed 100, a lifting unit 40 provided on the tip side of the arm 30, and a leg 60 located below the bed 100 and provided on the lower end of the pillar 20. The arm 30 is rotatable between a position above the bed 100 and a position on one side of the bed 100 in the lateral direction, and the leg 60 has a main frame 64 extending in the longitudinal direction of the bed 100, and the main frame 64 forms an opening 65 on one side of the bed 100 in the lateral direction.

[0052] As a result, the lifting device 10 can stably lift up the user because the main frame 64 extends in the longitudinal direction of the bed 100. Also, the caregiver can stably care for the user because the main frame 64 does not get in the way even if the caregiver puts his / her feet under the bed 100. Also, the legs 202 of the bed desk 200 can be inserted into the opening 65. This makes it possible to provide the lifting device 10 with good usability.

[0053] Moreover, the main frame 64 is formed in a concave shape in a plan view seen from above. This allows the installation area of ​​the main frame 64 on the floor surface to be increased. Also, by extending the main frame 64 farther from the pillars 20, the support surface can be made farther. Furthermore, the main frame 64 can also be extended in the short direction of the bed 100. Therefore, the lifting device 10 can stably suspend the user.

[0054] In addition, the leg 60 has a subframe 63 extending in the longitudinal direction of the bed 100, and a base 66 attached to the subframe 63 and on which the leg 102 of the bed 100 is placed, and the attachment position of the base 66 can be adjusted relative to the subframe 63.

[0055] This allows the lifting device 10 to be used in accordance with a variety of types of beds 100. For example, if the gap between the pillar 20 and the board 106 is narrow, there is a risk of fingers getting pinched between the pillar 20 and the board 106 when the upper end of the board 106 is grasped. Therefore, by adjusting the position of the base 66, the size of the gap between the pillar 20 and the board 106 can be set to a size that will prevent fingers from getting pinched. Even in a bed 100 that can be tilted, by adjusting the position of the base 66, it is possible to prevent the board 106 from coming into contact with the pillar 20.

[0056] The lifting device 10 can also be adapted to a bed 100 with a short longitudinal length by moving the positions of the base 66 and the main frame 64 closer to the pillar portion 20. This allows the bed 100 and the lifting device 10 to be installed according to the size of the room.

[0057] In addition, the base 66 has a mounting plate portion 66b on which the legs 102 of the bed 100 are placed, and a stopper 66c provided on the mounting plate portion 66b to prevent the position of the legs 102 of the bed 100 from shifting, and the attachment position of the stopper 66c is adjustable relative to the mounting plate portion 66b.

[0058] This allows the stopper 66c to be attached to the placement plate portion 66b in accordance with the size and shape of the leg portion 102 of multiple types of beds 100. Therefore, the lifting device 10 can be adapted to multiple types of beds 100. Furthermore, by attaching other stoppers to the placement plate portion 66b, it can be adapted to even more types of beds 100.

[0059] Further, the subframe 63 is provided on the column portion 20, and the main frame 64 is provided on the subframe 63. This makes it possible to effectively prevent the column portion 20 from being lifted up due to the load applied to the column portion 20.

[0060] In the above embodiment, the pillar 20 is disposed on one side in the longitudinal direction of the bed 100. However, the present invention is not limited to this, and the pillar may be disposed on one or the other side in the lateral direction of the bed 100.

[0061] Also, in the above-described embodiment, the lifting device 10 that suspends a user by the lifting unit 40 provided at the tip of the arm 30 has been described as an example. However, the present invention is not limited to this, and may be, for example, a lifting device that does not have the lifting unit 40. For example, the present invention may be a lifting device in which a hanger is provided at the tip of an arm that moves up and down, and the user is suspended by the arm.

[0062] In the above-described embodiment, the leg portion 60 is disposed below (directly below) the bed 104. However, the present invention is not limited to this embodiment, and the leg portion may protrude from the bed 104.

[0063] The above-described embodiments are examples of 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]

[0064] 10 Lifting device 20 Column section 21 Horizontal Frame 22 Reinforcement frame 30 Arm 31 Vertical section 32 Slope 33 Extension 33a Bottom part 35 Mounting part 35a through hole 35b Protrusion 35c Convex 37 Reinforcement members 38 Cover 40 Lifting unit 41 Case 41a Top part 41b Bottom part 42 Protrusion 44 Belt 50 Spacer 52 Remote Control 53 Emergency stop lever 55 Hanger 60 Legs 63 Subframe 63a Vertical section 63b Horizontal part 63b1 Top part 63b2 Base mounting hole 63b3 Side part 63b4 Mounting part 64 Mainframe 64a 1st section 64b 2nd part 64c 3rd part 65 Opening 66 Base 66a Pedestal 66b Placing plate 66b1 long hole 66b2 Stopper mounting hole 66c Stopper 67 Volts 68 Volts 69 Regulatory Department 72 other basses 72a Pedestal 72b Placing plate 72c Regulatory Department 80 Auxiliary Frame 100 Beds 102 Legs 104 Bed 106 Board 200 desks 202 Legs

Claims

1. A pillar portion extending vertically adjacent to the bed; an arm extending from an upper end of the pillar toward above the bed; A leg portion provided at a lower end of the column portion; Equipped with The arm is rotatable between an upper position of the bed and a position on one side in a short side direction of the bed, The leg portion has a main frame extending in the longitudinal direction of the bed, The main frame has an opening at one side position in a short side direction of the bed, The leg portion is A subframe extending in a longitudinal direction of the bed; A base attached to the subframe and on which the legs of the bed are placed; A lifting device comprising:

2. The lifting device according to claim 1 , wherein the main frame is formed in a concave shape when viewed from above.

3. A lifting device as described in claim 1 or 2, characterized in that the subframe extends toward the head side beyond the longitudinal center of the bed.

4. A lifting device as described in any one of claims 1 to 3, characterized in that the main frame is attached to the subframe at a predetermined mounting position, and the mounting position can be adjusted to adjust the longitudinal position of the bed on the main frame.

5. A lifting device described in any one of claims 1 to 4, characterized in that the subframes are arranged in a pair spaced apart in the short side direction of the bed, and the main frame is arranged between the pair of subframes.

6. The lifting device according to any one of claims 1 to 5, characterized in that the mounting position of the base can be adjusted relative to the subframe.

7. The base has a placement plate portion on which the leg of the bed is placed, and a stopper provided on the placement plate portion to prevent the leg of the bed from shifting from a position where it is in a different position.

7. The lifting device according to claim 6, wherein the stopper is capable of adjusting an attachment position with respect to the loading plate portion.

8. The lifting device according to any one of claims 1 to 7, wherein the subframe is provided on the pillar portion.

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