JP2021192850A - Body support device - Google Patents

Abstract

To provide a body support device capable of improving convenience.SOLUTION: A body support device 10 includes a base frame 31 provided on an installation surface FL, a support base 11 positioned over the base frame 31, and a lifting mechanism for lifting the support base 11 relative to the base frame 31. A height to the installation surface FL of the bottom edge of the lifting mechanism is higher than a height to the installation surface FL of the bottom edge of the base frame 31.SELECTED DRAWING: Figure 2

Description

The present invention relates to a body support device.

As a body support device, for example, Patent Document 1 is known.

Japanese Unexamined Patent Publication No. 2017-18591

The present invention provides a body support device that can improve convenience.

The body support device according to one aspect of the present invention includes a base frame provided on an installation surface, a support base located above the base frame, and an elevating mechanism for raising and lowering the support base with respect to the base frame. I have. The height of the lower end of the elevating mechanism with respect to the installation surface is equal to or higher than the height of the lower end of the base frame with respect to the installation surface.

According to the present invention, it is possible to provide a body support device that can improve convenience.

It is a perspective view of the body support device which concerns on one Embodiment of this invention. It is a side view of the body support device shown in FIG. 1, and is the figure which shows the state which the support base is most lowered. It is a top view of the body support device shown in FIG. 1. It is a bottom view of the body support device shown in FIG. 1. It is an enlarged view of the part A in the bottom view shown in FIG. It is a side view which shows the state which raised the support base most in the body support device shown in FIG. In the side view shown in FIG. 6, it is a figure which shows the state which the B part was enlarged and a part was transmitted through. FIG. 3 is a perspective view showing a state in which the support base is raised most and the back bottom and the leg bottom are moved in the body support device shown in FIG. 1. It is a perspective view which shows the state which removed the back bottom and the leg bottom from the state shown in FIG. FIG. 3 is a side view showing a state in which the drive unit is operated in the first mode in the body support device shown in FIG. In the side view shown in FIG. 10, it is a figure which shows the state which the C part was enlarged and a part was transmitted through. It is a side view which shows the state which the drive part was operated in the 2nd mode in the body support device shown in FIG. In the side view shown in FIG. 12, it is a figure which shows the state which the part D was enlarged and a part was transmitted through. It is a figure which shows an example of the input part provided in the body support device shown in FIG. It is a figure which extracted the main part of the gantry from the perspective view shown in FIG. It is a figure which shows the body support device which concerns on the modification of this invention, and is the perspective view which shows a part of the back raising mechanism. It is a figure corresponding to the state shown in FIG. 13 in the body support device which concerns on the modification shown in FIG.

The body support device 10 according to the embodiment of the present invention will be described below with reference to the drawings.
The body support device 10 of the present embodiment shown in FIG. 1 is a bed device (bed) that can be used as a general floor bed, an ICU bed, or the like in a medical environment (including a nursing care environment), and is on the floor surface FL. It is installed in. In each diagram including FIG. 1, reference numeral X indicates a first direction X along the longitudinal direction of the body support device 10, and reference numeral Y indicates a second direction Y along the width direction of the body support device 10. The reference numeral Z direction indicates a third direction Z along the height direction (vertical direction) of the body support device 10.
When the body support device 10 is viewed in a plan view along the third direction Z, the body support device 10 is shorter in the second direction Y orthogonal to the first direction X than in the first direction X. The first direction X is the direction of the height of the user lying on the body support device 10.

[Rough configuration of body support device 10]
First, the schematic configuration of the body support device 10 will be described.
As shown in FIG. 1, the body support device 10 is a support unit 11 that supports a user (not shown), a pedestal 12 that supports the support pedestal 11, and a control unit that controls the movements of the support pedestal 11 and the pedestal 12. 17 and. The body support device 10 is an electric bed that operates using electric power as a power source.

<Support stand 11>
The support 11 will be described with reference to FIGS. 1 to 3.
The support base 11 includes a back bottom (Back section) 21, a waist bottom (Seat section) 22, and a leg bottom (Leg section) 23. The back bottom 21, the waist bottom 22, and the leg bottom 23 are arranged in this order along the first direction X. The back bottom 21 supports the back of the user. The waist bottom 22 supports the user's waist. The leg bottom 23 supports the user's legs.

The leg bottom 23 includes a knee bottom (Upper leg section) 24 and a foot bottom (Lower leg section) 25. These knee bottoms 24 and foot bottoms 25 are arranged in this order along the first direction X. The knee bottom 24 supports the waist from the user's knees. The foot bottom 25 supports the toes from the user's knees.
A mattress (not shown) on which the user lies is arranged on the support base 11. That is, the mattress is placed on the support base 11 of the body support device 10, and the user lies on the mattress.

<Mount 12>
The gantry 12 will be described with reference to FIGS. 1, 2, 4 to 13.
As shown in FIG. 7, the gantry 12 includes a main frame 32 that supports the support base 11, a base frame 31 located below the main frame 32, and an elevating mechanism 33 that raises and lowers the main frame 32 with respect to the base frame 31. A back raising mechanism 39 for moving the back bottom 21 and a knee raising mechanism 45 for moving the leg bottom 23 are provided.

(Base frame 31)
The base frame 31 will be described with reference to FIG.
The base frame 31 is provided with casters 36, caster locks 91 that regulate the rotation of the casters 36, and stoppers 92 that protrude downward from the base frame 31. The casters 36 are arranged at the four corners when the base frame 31 is viewed in a plane. The caster 36 is grounded to the floor surface FL.

The caster lock 91 projects outward from the base frame 31 along the first direction X. The caster lock 91 is arranged below the foot bottom 25. The caster lock 91 is operated, for example, by the foot of a carrier (not shown) of the body support device 10. In the present embodiment, the rotation of the caster 36 is restricted when the carrier steps on the caster lock 91 from above and the caster lock 91 descends. On the contrary, when the carrier pulls up the caster lock 91 with his / her foot, the restriction on the rotation of the caster 36 is released.

The stopper 92 regulates access to the caster lock 91 when the legs of an option (for example, a desk or a nursing care lift, etc.) (not shown) enter below the base frame 31. The stopper 92 is arranged between the central portion of the first direction X in the base frame 31 and the caster lock 91.

(Elevating mechanism 33)
The elevating mechanism 33 will be described with reference to FIGS. 7, 9 and 15.
As shown in FIG. 7, the elevating mechanism 33 adopts a so-called X-link structure. For the elevating mechanism 33, for example, the link type elevating mechanism described in Japanese Patent Application No. 2016-909816 (name of invention: connecting frame and bed device including the same, filing date: January 21, 2016) can be incorporated. This patent application is incorporated in its entirety by reference. The elevating mechanism 33 includes a first link 51 and a second link 52 arranged so as to intersect each other, a pin 54 connecting the central portions of the first link 51 and the second link 52, and the first link 51 and the second link. It includes a plate member 58 provided at the end of the link 52, and a drive unit 61 for moving the first link 51 and the second link 52.
In the present embodiment, the elevating mechanism 33 adopts an X-link structure using an actuator, but the present invention is not limited to this case, and the elevating mechanism 33 may be composed of, for example, only an actuator, or an actuator. It may be composed only of the link mechanism which does not use.

The first link 51 and the second link 52 are both rod-shaped extending along the first direction X when viewed in a plan view. One end 51a of the first link 51 and one end 52a of the second link 52 are located below the waist bottom 22. The other end 51b of the first link 51 and the other end 52b of the second link 52 are located below the leg bottom 23.
At least one of the first link 51 and the second link 52 (both in this embodiment) is bent sideways. Specifically, the first link 51 is bent so as to project upward. On the other hand, the second link 52 is bent so as to project downward.

As shown in FIG. 9, a pair of the first link 51 and the second link 52 are provided at intervals in the second direction Y, respectively. In the present embodiment, a pair of the first link 51 and the second link 52 connected by the pins 54 are provided in a pair at intervals in the second direction Y. The pair of first links 51 and the pair of second links 52 are connected by a pipe 53, respectively.

The pipe 53 includes a first pipe 531 that connects one ends 51a of the pair of first links 51, a second pipe 532 that connects the other ends 51b of the pair of first links 51, and a pair of second links. It includes a third pipe 533 that connects one end portions 52a of the 52 to each other, and a fourth pipe 534 that connects the other end portions 52b of the pair of second links 52 to each other.

As shown in FIG. 15, the plate material 58 includes a first plate material 581 fixed to the first pipe 531 and a second plate material 582 fixed to the second pipe 532, and a third plate material fixed to the third pipe 533. 583 and.
The first plate material 581 is connected to the base frame 31. The first plate member 581 can rotate with respect to the base frame 31.

The second plate material 582 is provided with a first roller 55a. The first roller 55a is supported by a first channel material 55 fixed to the main frame 32. The first channel material 55 extends along the first direction X. The first roller 55a slides in the first direction X along the first channel material 55.

The third plate member 583 is connected to the main frame 32. The first plate member 581 can rotate with respect to the main frame 32.
The fourth pipe 534 is provided with a second roller 56a. The second roller 56a is supported by a second channel material 56 fixed to the base frame 31. The second channel material 56 extends along the first direction X. The second roller 56a slides in the first direction X along the second channel material 56.

As shown in FIG. 7, the drive unit 61 is a linear actuator that expands and contracts along the first direction X when viewed in a plan view. By extending the drive unit 61, the first link 51 is rotated upward around the first plate material 581. The first link 51 is provided with a link mechanism 65 that converts the expansion / contraction motion of the drive unit 61 into the rotational motion of the first link 51. As shown in FIG. 4, the drive unit 61 is connected to each of the link mechanism 65 and the second pipe 532.

In the elevating mechanism 33, when the main frame 32 is raised with respect to the base frame 31, the drive unit 61 extends as shown in FIG. Then, the first link 51 rotates upward about the first plate material 581, and the first roller 55a slides and moves along the first channel material 55. At this time, the second link 52 rotates downward about the third plate material 583, and the second roller 56a slides and moves along the second channel material 56. As a result, the main frame 32 rises with respect to the base frame 31.

(Back raising mechanism 39)
The back raising mechanism 39 will be described with reference to FIGS. 9 to 11.
As shown in FIG. 10, the back raising mechanism 39 tilts the back bottom 21. As shown in FIG. 11, the back raising mechanism 39 includes a shaft member 26a connected to the main frame 32, a first member 43 fixed to the shaft member 26a, and a second member fixed to the lower surface of the back bottom 21. 40, a first link 44 connecting the main frame 32 and the second member 40, a second link 42 connecting the first member 43 and the second member 40, and a drive unit 63 for rotating the shaft member 26a. , Is equipped.

As shown in FIG. 9, the shaft member 26a extends in the second direction Y. The shaft member 26a rotates while being connected to the main frame 32.
The first member 43 extends from the shaft member 26a in the first direction X in a state before raising the back (before tilting the back bottom 21) as shown in FIG. 7. As shown in FIG. 9, one end 43a of the first member 43 is fixed to the shaft member 26a. As shown in FIG. 10, a roller 43c is provided on the other end 43b of the first member 43. The roller 43c comes into contact with the lower surface of the second member 40.

The first link 44 is connected to the main frame 32 and the second member 40 by pins 44a, respectively. As shown in FIG. 11, the second link 42 is connected to each of the first member 43 and the second member 40 by a pin 42a. The first link 44, the second link 42, and the second member 40 form a link mechanism 41.

As shown in FIG. 9, the drive unit 63 is a linear actuator that expands and contracts in the first direction X when viewed in a plan view. The drive unit 63 rotates the shaft member 26a by extending it. The drive unit 63 is connected to a first bracket 63a provided on the main frame 32 and a second bracket 63b provided on the shaft member 26a, respectively. The drive unit 63 is connected to each of the first bracket 63a and the second bracket 63b by a pin 63c.

In the back raising mechanism 39, the drive unit 63 is extended in the state before the back raising mechanism, the shaft member 26a is rotated, and the other end portion 43b of the first member 43 is raised, so that the roller 43c is as shown in FIG. Slides and moves on the lower surface of the second member 40, and the first member 43 pushes up the second member 40. At this time, as shown in FIG. 11, by moving the link mechanism 41, the back bottom 21 moves in the first direction X, and the back bottom 21 undulates around the shaft member 26a. As a result, the back bottom 21 is in a raised state in which the back bottom 21 is inclined with respect to the horizontal plane.

(Knee raising mechanism 45)
The knee raising mechanism 45 will be described with reference to FIGS. 6 and 7.
The knee raising mechanism 45 can move the leg bottom 23 as shown by the two-dot chain line shown in FIG. As shown in FIG. 7, the knee raising mechanism 45 includes a shaft member 26b connected to the main frame 32, a first member 46 fixed to the shaft member 26b, and a second member fixed to the lower surface of the knee bottom 24. It includes a 47, a third member 48 fixed to the lower surface of the foot bottom 25, and a drive unit 64 for rotating the shaft member 26b.

The shaft member 26b extends in the second direction Y. The shaft member 26b rotates in a state of being connected to the main frame 32.
The first member 46 extends from the shaft member 26b in the first direction X in a state before raising the knee (before moving the leg bottom 23). One end 46a of the first member 46 is fixed to the shaft member 26b. A roller 46c is provided at the other end 46b of the first member 46. The roller 46c comes into contact with the lower surface of the second member 47.

The second member 47 extends in the first direction X in a state before the knee is raised. One end 47a of the second member 47 is connected to the main frame 32 by a first pin 49a.
The third member 48 extends in the first direction X from the other end 47b of the second member 47 in a state before raising the knee. One end 48a of the third member 48 is connected to the other end 47b of the second member 47 by a second pin 49b.

The drive unit 64 is a linear actuator that expands and contracts in the first direction X when viewed in a plan view. The drive unit 64 rotates the shaft member 26b by extending it. The drive unit 64 is connected to a first bracket 64a provided on the main frame 32 and a second bracket 64b provided on the shaft member 26b, respectively. The drive unit 64 is connected to each of the first bracket 64a and the second bracket 64b by a pin 64c.

In the knee-raising mechanism 45, the drive unit 64 extends in the state before knee-raising, the shaft member 26b rotates, and the other end portion 46b of the first member 46 rises, so that the roller 46c moves to the lower surface of the second member 47. Is slid and moved, and the first member 46 pushes up the second member 47. At this time, the second member 47 rotates upward around the first pin 49a, and the third member 48 rotates downward around the second pin 49b. As a result, as shown by the alternate long and short dash line in FIG. 6, the entire leg bottom 23 is in a knee-raised state in which the entire leg bottom 23 bends upward.

<Control unit 17>
As shown in FIG. 9, the control unit 17 is located below the support base 11 and is fixed to the main frame 32. The control unit 17 controls each drive unit 61, 63, 64. The input unit 18 shown in FIG. 14 is connected to the control unit 17 by wire or wirelessly. A user or a caregiver inputs a command regarding the operation of the body support device 10 to the input unit 18. The input unit 18 includes a plurality of controls 81. The plurality of operators 81 include a first operator 82, a second operator 83, a third operator 84, and a fourth operator 85.

When each operator 81 is operated, the input unit 18 sends a signal to the control unit 17 as to which operator 81 has been operated. When the control unit 17 receives a signal from the input unit 18 that the first operator 82 is operated, the control unit 17 controls both the drive unit 63 of the back raising mechanism 39 and the drive unit 64 of the knee raising mechanism 45. Is generated and sent to the drive units 63 and 64. When the control unit 17 receives a signal from the input unit 18 that the second operator 83 is operated, the control unit 17 generates a signal for controlling the drive unit 63 of the back raising mechanism 39 and sends it to the drive unit 63. .. When the control unit 17 receives a signal from the input unit 18 that the third operator 84 is operated, the control unit 17 generates a signal for controlling the drive unit 64 of the knee raising mechanism 45 and sends it to the drive unit 64. .. When the control unit 17 receives a signal from the input unit 18 that the fourth operator 85 is operated, the control unit 17 generates a signal for controlling the drive unit 61 of the elevating mechanism 33 and sends it to the drive unit 61.

[Mode of movement of body support device 10]
Next, the mode of movement of the body support device 10 will be described with reference to FIGS. 10 to 13 and 15.
The drive unit 63 of the back raising mechanism 39 can not only move the back bottom 21 as shown in FIG. 10, but also move the back bottom 21 while inclining the main frame 32 as shown in FIG. In the body support device 10, as shown in FIG. 10, the drive unit 63 moves only one of the support base 11 and the main frame 32 in the first mode, and as shown in FIG. 12, the drive unit 63 is the support base. It operates in any mode of the second mode in which the 11 is moved together with the mainframe 32.

As shown in FIGS. 11 and 13, the body support device 10 further comprises a pin 71. The pins 71 can be attached to a plurality of positions on the body support device 10. The position where the pin 71 is attached when the body support device 10 is operated in the first mode as shown in FIG. 11 is a pin when the body support device 10 is operated in the second mode as shown in FIG. It is different from the position where 71 is mounted. As shown in FIG. 11, when the body support device 10 operates in the first mode, the pin 71 connects the main frame 32 and the elevating mechanism 33, and when the drive unit 63 extends, the shaft member 26a Simply rotate. On the other hand, as shown in FIG. 13, when the body support device 10 operates in the second mode, the pin 71 connects the elevating mechanism 33 and the back raising mechanism 39, and when the drive unit 63 extends, the shaft member While the 26a rotates, the entire back raising mechanism 39 rotates upward around the pin 71. The control of the drive unit 63 by the control unit 17 is also different. Details on this point will be described later.
Hereinafter, the first mode and the second mode will be described.

<First mode>
First, the first mode will be described with reference to FIGS. 10, 11 and 15.
As shown in FIG. 10, in the first mode, the drive unit 63 moves only the support base 11, for example. In the first mode, as shown in FIG. 11, the pin 71 is attached to the main frame 32 and the elevating mechanism 33.
As shown in FIG. 15, the main frame 32 is formed with a first through hole 72 penetrating in the second direction Y. The elevating mechanism 33 (third plate material 583) is formed with a second through hole 73 penetrating in the second direction Y. With the support 11 most lowered, the first through hole 72 and the second through hole 73 are arranged coaxially with each other, and as shown in FIG. 11, the pin 71 is the first through hole 72 and the second through hole 72. It is mounted in the hole 73.

When the drive unit 63 is extended while the body support device 10 is in the first mode, the shaft member 26a rotates and the other end portion 43b of the first member 43 rises. As a result, as shown in FIG. 10, the back bottom 21 is tilted without the main frame 32 being tilted.

<Second mode>
Next, the second mode will be described with reference to FIGS. 11 to 13 and 15.
As shown in FIG. 12, in the second mode, the drive unit 63 tilts the back bottom 21 with respect to the main frame 32 while tilting the main frame 32 with respect to the floor surface FL. In this case, one drive unit 63 operates both the back bottom 21 and the main frame 32. In the second mode, as shown in FIG. 13, the pin 71 is attached to the first plate material 74 provided in the back raising mechanism 39 and the second plate material 75 provided in the elevating mechanism 33.

The first plate member 74 projects from the shaft member 26a in the first direction X. As shown in FIG. 11, the first plate material 74 is formed with a third through hole 76 penetrating in the second direction Y. As shown in FIG. 15, the second plate member 75 projects from the third pipe 533 in the first direction X. The second plate material 75 is formed with a fourth through hole 77 penetrating in the second direction Y. With the support 11 most lowered, the third through hole 76 and the fourth through hole 77 are arranged coaxially with each other, and as shown in FIG. 13, the pin 71 is the third through hole 76 and the fourth through hole 76. It is attached to the hole 77.

When the drive unit 63 is extended while the body support device 10 is in the second mode, the shaft member 26a rotates and the other end 43b of the first member 43 rises, while the drive unit 63 moves upward around the pin 71. Rotate. As a result, as shown in FIG. 12, the portion of the main frame 32 located below the back bottom 21 rises. At this time, as shown by the dotted line in FIG. 12, the first channel member 55 of the main frame 32 slides and moves in the first direction X with respect to the first roller 55a of the elevating mechanism 33. As a result, the portion of the main frame 32 located below the leg bottom 23 is lowered, and the main frame 32 is tilted as a whole.

In the second mode, even if the detection signal acquired by the control unit 17 from the input unit 18 is the same as in the first mode, the control of the drive unit 63 by the control unit 17 is different. In the second mode, since the main frame 32 is tilted by the drive of the drive unit 63, even if the tilt of the back bottom 21 is small, the position of the user's line of sight on the support base 11 is sufficiently high. .. Therefore, for example, the final amount of inclination of the drive unit 63 in the second mode is smaller than the amount of inclination in the first mode. This control change can be implemented by the user operating the input unit 18 to rewrite the information in the control unit 17.

[Height of elevating mechanism 33]
Finally, the height of the elevating mechanism 33 will be described with reference to FIGS. 2 and 6.
As shown in FIG. 2, the height of the lower end of the elevating mechanism 33 with respect to the floor surface FL (hereinafter referred to as “the height of the lower end of the elevating mechanism 33”) is the height of the lower end of the base frame 31 with respect to the floor surface FL (hereinafter referred to as “the height of the lower end of the elevating mechanism 33”). Hereinafter, it is referred to as “the height of the lower end of the base frame 31”) or more. In the present embodiment, the form of the elevating mechanism 33 changes depending on the height at which the elevating mechanism 33 raises and lowers the support base 11, but regardless of the form, the height of the lower end of the elevating mechanism 33 is the lower end of the base frame 31. It is above the height. Specifically, as shown in FIG. 2, the elevating mechanism 33 is in the state where the support base 11 is most lowered, and as shown in FIG. 6, the elevating mechanism 33 is in the state where the support base 11 is most raised. In any state, the height of the lower end of the elevating mechanism 33 is equal to or higher than the height of the lower end of the base frame 31.

The distance H1 in the third direction Z between the lower end of the base frame 31 and the floor surface FL is, for example, 66 mm to 76 mm. Further, as shown in FIG. 2, when the support base 11 is most lowered, the distance H2 in the third direction Z from the upper surface of the support base 11 (the support surface that supports the user) to the floor surface FL is determined. For example, it is 215 mm to 225 mm.

[Summary of this embodiment]
The technical ideas that can be grasped from the above embodiments are described together with the effects.
As shown in FIGS. 2 and 6, the body support device 10 according to the present embodiment includes a base frame 31 provided on the floor surface FL (installation surface), a support base 11 located above the base frame 31, and a base. A lifting mechanism 33 for raising and lowering the support base 11 with respect to the frame 31 is provided. The height of the lower end of the elevating mechanism 33 is equal to or higher than the height of the lower end of the base frame 31.
In this case, for example, the legs of an option (for example, a desk, a nursing care lift, etc.) (not shown) can be smoothly entered below the base frame 31, and the convenience of the body support device 10 can be improved. In the present embodiment, as shown in FIG. 2, even if the elevating mechanism 33 lowers the support base 11 most, the height of the lower end of the elevating mechanism 33 is equal to or higher than the height of the lower end of the base frame 31. Therefore, the option can be used without raising the support base 11. Further, in the present embodiment, the lower end of the elevating mechanism 33 is in any state from the state in which the elevating mechanism 33 is most lowered to the state in which the support base 11 is most lowered as shown in FIG. The height is equal to or higher than the height of the lower end of the base frame 31. Therefore, the support base 11 can be raised and lowered while using the option.

As shown in FIG. 7, the elevating mechanism 33 includes a first link 51 and a second link 52, and a pin 54 connecting the central portions of the first link 51 and the second link 52.
The elevating mechanism 33 further includes a first plate material 581 (plate material 58) that is connected to the base frame 31 and rotates with respect to the base frame 31. The first plate material 581 is fixed to the first link 51.
In this case, the first link 51 can be rotated about the first plate material 581 with respect to the base frame 31 without connecting the first link 51 to the base frame 31. Therefore, instead of connecting the first link 51 to the base frame 31, the first plate member 581 may be connected to the base frame 31. As a result, for example, the body support device 10 can be easily assembled.

At least one of the first link 51 and the second link 52 (both in this embodiment) is bent.
In this case, since the first link 51 and the second link 52 are bent, for example, interference between the first link 51 and the second link 52 and other members can be suppressed.

As shown in FIGS. 12 and 13, the body support device 10 according to the present embodiment includes a support base 11, a main frame 32 that supports the support base 11, and at least the movement of the support base 11 and the inclination of the main frame 32. It is provided with a drive unit 63 (in this embodiment, a drive unit 63 of the back raising mechanism 39) for operating one of them. As shown in FIGS. 12 and 13, the body support device 10 has a mode in which the drive unit 63 moves the support base 11 while tilting the main frame 32 (second mode in the present embodiment), and FIGS. 10 and 10. As shown in 11, the drive unit 63 operates in either a mode in which only one of the movement of the support base 11 and the inclination of the main frame 32 is operated (in this embodiment, the first mode).
In this case, a common drive source can be used to move the support 11 and the mainframe 32. As a result, it is possible to realize simplification of the structure, cost reduction, shortening of the moving time of the support base 11 and the main frame 32, and the like.

As shown in FIGS. 11 and 13, the body support device 10 further includes a member (in this embodiment, a pin 71) that is mounted at a different position for each mode.
In this case, the convenience of the body support device 10 can be improved.

[Modification example]
The technical scope of the present invention is not limited to the configuration of the embodiment, and various modifications can be made without departing from the spirit of the present invention.

For example, as in the body support device 10A according to the modifications shown in FIGS. 16 and 17, when the body support device 10A is set to the second mode, as shown in FIG. 17, the pin 71 is the first plate member 74 and It may be attached to the link member 78. As shown in FIG. 16, the link member 78 is attached to the shaft member 26a and rotates with respect to the shaft member 26a. The link member 78 is formed with a fifth through hole 78a and a sixth through hole 78b penetrating in the second direction Y. As shown in FIG. 17, a pin 79 (another pin 79 different from the pin 71) inserted through the fourth through hole 77 is inserted into the sixth through hole 78b. As shown in FIG. 16, when the pin 71 is inserted through the fifth through hole 78a and the third through hole 76, the link member 78 also rotates when the shaft member 26a rotates. When the pin 71 is not inserted through the fifth through hole 78a and the third through hole 76, the link member 78 does not rotate when the shaft member 26a rotates.

In the above embodiment, as shown in FIGS. 6 and 10, both the back bottom 21 and the leg bottom 23 move, and the main frame 32 moves up and down and tilts, but the present invention is not limited to this. For example, the mainframe 32 does not have to move up and down. Only one of the back bottom 21 or the leg bottom 23 may move.

The present invention can be applied not only to a bed (bed device) but also to a stretcher and a chair.
In the above embodiment, as shown by the two-dot chain line in FIG. 6, when the leg bottom 23 moves, both the knee bottom 24 and the foot bottom 25 move, and the entire leg bottom 23 protrudes upward. Although it is in a raised state, the present invention is not limited to this. For example, of the leg bottoms 23, the knee bottoms 24 may not move and only the foot bottoms 25 may be in a foot-lowered state in which they rotate downward.

In the above embodiment, as shown in FIGS. 10 to 13, the body support device 10 operates in a plurality of modes, but the present invention is not limited to this. For example, the body support device 10 may have only one of the functions of the first mode and the second mode, and may not have the pin 71. Further, for example, when the body support device 10 is in the second mode, instead of the drive unit 63 of the back raising mechanism 39 moving the support base 11 together with the main frame 32, the drive unit 64 of the knee raising mechanism 45 is the support base 11. May be moved with the mainframe 32. In this case, for example, it is possible to adopt a configuration in which the leg bottom 23 is moved to raise the knee or lower the foot while inclining the main frame 32.

The elevating mechanism 33 does not have to include the plate member 58. The first link 51 and the second link 42 of the elevating mechanism 33 do not have to be bent. The elevating mechanism 33 does not have to have an X-link structure. The height of the lower end of the elevating mechanism 33 does not have to be equal to or higher than the height of the lower end of the base frame 31.

In addition, the components in the embodiment may be appropriately replaced with well-known components without departing from the spirit of the present invention, or the above-mentioned modifications may be appropriately combined.

10, 10A Body support device 11 Support base 26a Shaft member 31 Base frame 32 Main frame 33 Elevating mechanism 51 First link 52 Second link 58 Plate material 59 Bending part 63 Drive part

Claims (6)

The base frame provided on the installation surface and
A support base located above the base frame and
An elevating mechanism that raises and lowers the support base with respect to the base frame,
Equipped with
The elevating mechanism includes a first link and a second link.
The first link and the second link intersect each other in a side view.
The first link is bent in the side view.
The first link includes a first portion linearly extending from one end to the center and a second portion linearly extending from the center to the other end, and is bent at the center. Body support device. The body support device according to claim 1, wherein the second link is bent in the side view. The first link is rotatable with respect to the base frame and
The first link is bent so as to project upward in the side view.
The second link can be slidably moved with respect to the base frame.
The body support device according to claim 1, wherein the second link is bent so as to project downward in the side view. The elevating mechanism includes a pin.
The body support device according to claim 3, wherein the pin connects the central portion of the first link and the center of the second link. The elevating mechanism further includes a plate material, and the elevating mechanism further includes a plate material.
The plate material is connected to the base frame and is rotatable with respect to the base frame.
The body support device according to claim 4, wherein the plate material is fixed to the first link or the second link. The main frame that supports the support base and
A channel material fixed to the main frame and extending along the first direction,
Further prepare
The elevating mechanism includes a pair of the first links, a pipe connecting the upper ends of the pair of the first links, and another plate material fixed to the pipes.
The other plate material includes a roller and includes a roller.
The roller is supported by the channel material so as to be slidable in the first direction along the channel material.
The body support device according to any one of claims 1 to 5, wherein the lower end portion of the other plate material is fixed to the pipe.

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