Reclining bed

Abstract

To make a height as low as possible between the pedestal and the floor by descending a fulcrum and to maximize casters or the like as much as possible.SOLUTION: In the present invention, in a reclining bed (1), a base end part of a thigh pedestal (21) for receiving the thigh of a recumbent person is installed in a freely raisable manner on a fulcrum (3), and also a base end part of a lower leg pedestal (22) for receiving the lower leg of the recumbent person is freely vertically in a bendable manner installed on a tip of the thigh pedestal (21). Thereby, in accordance with the rising and falling of the thigh pedestal (21), the base end part of the lower leg pedestal (22) is made bendable by the tip of the thigh pedestal (21). When the thigh pedestal (21) is raised in a state where the fulcrum (3) is most descendent for a base (2), along a lower leg pedestal guides (50, 57) installed for the purpose of elevating the tip of the lower leg pedestal (22) upward of projection members (caster section (10, 11), etc.) that protrude more upward than the fulcrum (3), the tip of the lower leg pedestal (22) is made to slide, so that collision of the tip of the lower leg pedestal (22) with the projection member is avoided.SELECTED DRAWING: Figure 7

Description

[Technical field]

[0001] The present invention relates to a reclining bed having a support platform that can be raised and lowered on a base, and a support platform that can be raised and lowered to support the body of a person lying down. [Background technology]

[0002] In hospitals, care facilities, home care and nursing, etc., reclining beds are used in which a support platform is mounted on a base so that it can be raised and lowered, and a receiving platform that can be raised and lowered to receive the body of a recumbent person (a person lying on the bed in a supine, lateral or prone position, etc.), so that the entire receiving platform can be raised and lowered while part of the receiving platform (for example, the back, thighs and lower legs of the recumbent person) can be raised and lowered (for example, see Patent Document 1).

[0003] In this type of reclining bed, it is desirable to lower the support platform as much as possible to reduce the height between the platform and the floor in order to make it easier for a reclining person to get on and off and to reduce the impact on the body if the person falls.

[0004] On the other hand, particularly in reclining beds used in hospitals and nursing homes, it is desirable to have larger casters attached to the base so that the bed can easily overcome steps in the floor and make it easier to move around. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] JP 2016-19613 A Summary of the Invention [Problem to be solved by the invention]

[0006] However, in the conventional reclining bed described above, when the support platform is lowered to the lowest possible position so that the height between the support platform and the floor is as low as possible, and the casters are made as large as possible, when the support platform is lowered to the lowest possible position relative to the base, the upper part of the caster protrudes above the base.

[0007] In this way, if there is a member that protrudes above the support base when the support base is lowered to its lowest point relative to the base, when the thigh support base is raised while the support base is lowered to its lowest point relative to the base, the tip of the lower leg support base, which moves in conjunction with the thigh support base, will collide with the member that protrudes above the support base along the way, preventing the lower leg support base from moving smoothly and there is a risk of damage to the lower leg support base or members. [Means for solving the problem]

[0008] Therefore, in the present invention as claimed in claim 1, in a reclining bed in which a support platform is provided on a base so that it can be raised and lowered, and a support platform for supporting the body of a person lying down is provided on the support platform so that it can be raised and lowered, the base end of the thigh support platform for supporting the thighs of the person lying down is provided on the support platform so that it can be raised and lowered, and the base end of the lower leg support platform for supporting the lower leg of the person lying down is provided at the tip of the thigh support platform so that it can be bent up and down, so that the base end of the lower leg support platform bends at the tip of the thigh support platform as the thigh support platform is raised, and when the support platform is lowered to the lowest position relative to the base and the thigh support platform is raised, the tip of the lower leg support platform slides along a lower leg support platform guide provided to raise the tip of the lower leg support platform above a protruding member that protrudes above the support platform, thereby avoiding collision between the tip of the lower leg support platform and the protruding member.

[0009] Furthermore, in the present invention according to claim 2, in the present invention described in claim 1, the lower leg support guide is arranged so that it can be accommodated in a recess provided at the bottom of the lower leg support, which supports the lower leg of a person lying down on its upper surface.

[0010] Furthermore, in the present invention according to claim 3, in the present invention according to claim 1 or claim 2, the lower leg support guide is provided on the support base, and the tip of the lower leg support always slides along the lower leg support guide when the thigh support is raised or lowered, regardless of the raised or lowered state of the support base.

[0011] Furthermore, in the present invention according to claim 4, in the present invention according to claim 1 or claim 2, the lower leg support guide is provided on a protruding member that protrudes above the support base when the support base is lowered to the lowest position relative to the base.

[0012] Furthermore, in the present invention as claimed in claim 5, in the present invention as claimed in claim 4, a sliding body is provided at the tip of the lower leg support base, and when the protruding member protrudes above the support base depending on the raised and lowered state of the support base, the sliding body slides along the lower leg support base guide, and when the protruding member does not protrude above the support base, the sliding body slides along the support base.

[0013] In a sixth aspect of the present invention, in the fourth aspect of the present invention, the protruding members are casters provided on the base. Effect of the Invention

[0014] The present invention provides the following advantages.

[0015] That is, in the present invention, in a reclining bed in which a support platform is provided on a base so as to be able to rise and fall, and a receiving platform for receiving the body of a person lying down is provided on the support platform so as to be able to be raised and lowered, a base end of a thigh receiving platform for receiving the thighs of the person lying down is provided on the support platform so as to be able to be raised and lowered, and a base end of a lower leg receiving platform for receiving the lower legs of the person lying down is provided on the tip of the thigh receiving platform so as to be able to be bent up and down, so that as the thigh receiving platform is raised and lowered, the base end of the lower leg receiving platform is bent at the tip of the thigh receiving platform, When the thigh support is raised in the lowest position, the tip of the lower leg support slides along the lower leg support guide provided to raise the tip of the lower leg support above the protruding member that protrudes above the support base, thereby avoiding collision between the tip of the lower leg support and the protruding member, so that the lower leg support can be moved smoothly even when the support base is at its lowest position relative to the base, and damage due to collision between the lower leg support and the protruding member can be prevented. This allows the support base to be lowered to its lowest position, making the height between the support base and the floor as low as possible, and allows the casters, etc. to be made as large as possible.

[0016] In particular, if the lower leg support guide is positioned so that it can be accommodated in a recess provided at the bottom of the lower leg support which receives the lower leg of a person lying on its upper surface, the lower leg support guide will be accommodated in the recess of the lower leg support when the support platform is lowered to its lowest point relative to the base, so that even if a lower leg support guide is provided, the height between the support platform and the floor can be reduced when the support platform is lowered to its lowest point.

[0017] Furthermore, if the lower leg support guide is provided on the support base so that the tip of the lower leg support always slides along the lower leg support guide when the thigh support is raised or lowered regardless of the raised or lowered state of the support base, the movement of the lower leg support linked to the raising or lowering of the thigh support can be made uniform regardless of the raised or lowered state of the support base.

[0018] Furthermore, if the lower leg support guide is provided on a protruding member that protrudes above the support base when the support base is lowered to its lowest position relative to the base, collision between the protruding member and the tip of the lower leg support can be avoided even if the protruding member is changed to one of a different size.

[0019] In addition, if a sliding body is provided at the tip of the lower leg support base, and when the protruding member protrudes upward beyond the support base depending on the raised and lowered state of the support base, the sliding body slides along the lower leg support base guide, and when the protruding member does not protrude upward beyond the support base, the sliding body slides along the support base, then by simply providing a common sliding body at the tip of the lower leg support base, collision between the protruding member and the tip of the lower leg support base can be avoided regardless of the raised and lowered state of the support base.

[0020] Furthermore, in the case where the protruding member is a caster portion provided on the base, the caster can be made larger in size to facilitate movement of the reclining bed. [Brief description of the drawings]

[0021] [Figure 1] 1A and 1B are a plan view and a side view, respectively, of a reclining bed according to the present invention. [Diagram 2] 1A is a plan view showing the lifting mechanism of a reclining bed, and FIG. 1B is a side cross-sectional view showing the lifting mechanism of a reclining bed. [Diagram 3] 1A is a plan view showing the upper body raising mechanism and the lower body raising mechanism of a reclining bed, and FIG. [Figure 4] FIG. 4 is an enlarged side cross-sectional view showing the upper body raising mechanism of the reclining bed. [Diagram 5] FIG. 4 is an enlarged side cross-sectional view showing the lower body raising mechanism of the reclining bed. [Figure 6] FIG. [Figure 7] FIG. [Figure 8] FIG. 4 is an enlarged side cross-sectional view showing the lower leg support guide attached to the support base. [Figure 9] Enlarged side cross-sectional views (a) and (b) showing the lower leg support guide attached to the caster section, and an enlarged plan view (c). DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0022] Hereinafter, a specific configuration of the reclining bed according to the present invention will be described with reference to the drawings.

[0023] As shown in Figs. 1 to 3, the reclining bed 1 has a support base 3 detachably (assembleable and separable) provided on the upper part of a base 2, and a receiving base 4 for supporting the body of a person lying down on the upper part of the support base 3 detachably (assembleable and separable). Between the base 2 and the support base 3, a lifting mechanism 5 for raising and lowering the support base 3 (receiving base 4) as a whole relative to the base 2 is provided. Between the support base 3 and the receiving base 4, an upper body raising mechanism 6 for partially raising and lowering a part (upper body side) of the receiving base 4 relative to the support base 3 is provided, and a lower body raising mechanism 7 for partially raising and lowering a part (lower body side) of the receiving base 4 relative to the support base 3 is provided. For convenience, the foot side (right side in Fig. 1) of a person lying down on the reclining bed 1 is described as the front side, and the head side (left side in Fig. 1) is described as the rear side.

[0024] The base 2 is movable by attaching caster sections 10, 11 consisting of casters and parts covering the upper part of the casters to the lower front and lower rear ends of a pair of left and right base frames 8, 9 extending in the front-to-rear direction, and connecting frames 12, 13 extending in the left-right direction are attached (fixed) between the front and rear parts of the left and right base frames 8, 9.

[0025] The support base 3 has boards (a footboard 16 and a headboard 17) detachably attached between the front and rear ends of a pair of left and right support base frames 14, 15 extending in the front-rear direction, and has a connecting frame 18 attached (fixed) extending in the left-right direction between the middle parts of the left and right support base frames 14, 15. The connecting frame 18 is curved at the middle part to avoid interference (collision) with the upper body raising mechanism 6.

[0026] The support base 4 is composed of a buttocks support base 19 for mainly receiving the weight of the buttocks of the reclining person (supporting the buttocks of the reclining person from below), an upper body support base 20 for mainly receiving the weight of the upper body (above the buttocks) of the reclining person (supporting the upper body of the reclining person from below), and a lower body support base for mainly receiving the weight of the lower body (below the buttocks) of the reclining person (supporting the lower body of the reclining person from below). This lower body support base is divided into a thigh support base 21 for mainly receiving the weight of the thighs of the reclining person (supporting the thighs of the reclining person from below), and a lower leg support base 22 for mainly receiving the weight of the lower legs of the reclining person (supporting the lower legs of the reclining person from below).

[0027] The buttocks support 19 is fixed horizontally to the approximate center upper part of the support base 3 (support base frames 14, 15).

[0028] The upper body support 20 is pivotally attached at its front end to the upper part of the rear side (rear of the buttocks support 19) of the support base 3 (support base frames 14, 15) so as to be able to rotate up and down, so that it can be raised and lowered relative to the support base 3 and the buttocks support 19. The upper body support 20 is supported by the support base 3 (support base frames 14, 15) by a support mechanism described later, and is able to be raised and lowered up and down relative to the support base frames 14, 15 while moving back and forth along the support base frames 14, 15. The upper body support 20 may be divided into a back support for mainly receiving the weight of the back (spine) below the shoulders (scapulae) of a person lying down (supporting the back (spine) below the shoulders (scapulae) of a person lying down from below), and a shoulder support for mainly receiving the weight of the shoulders (scapulae) above the shoulders and head of a person lying down (supporting the shoulders (scapulae) above the shoulders and head of a person lying down from below).

[0029] The lower body support has the rear end of the thigh support 21 pivotally attached to the upper part of the front side of the buttocks support 19 of the support base 3 (support base frame 14, 15) so as to be freely rotatable up and down. This allows the thigh support 21 to be raised and lowered relative to the support base 3 and the buttocks support 19. The lower body support also has the rear end of the lower leg support 22 pivotally attached to the front end of the thigh support 21 so as to be freely rotatable up and down. This allows the lower leg support 22 to be raised and lowered together with the thigh support 21 relative to the support base 3 and the buttocks support 19, and can be raised and lowered (freely bent) relative to the thigh support 21. The rear end of the lower leg support 22 moves together with the front end of the thigh support 21, and the front end moves along the upper surface of the support base 3 (support base frame 14, 15).

[0030] The lifting mechanism 5 has a base-side moving frame 23 extending in the left-right direction attached to the inside between the middle parts of the base frames 8, 9 so as to be movable back and forth along the base frames 8, 9, and a support-side moving frame 24 extending in the left-right direction attached to the inside between the middle parts of the support frames 14, 15 so as to be movable back and forth along the support frames 14, 15. The base-side moving frame 23 and the support-side moving frame 24 of the lifting mechanism 5 are supported by the base frames 8, 9 and the support frames 14, 15, respectively, by a support mechanism described later. The support-side moving frame 24 is curved in the middle part to avoid interference (collision) with the lower body raising mechanism 7.

[0031] In addition, the lifting mechanism 5 has a pair of left and right crossbars 25, 26 whose lower ends are attached to the connecting frame 13 on the rear side of the base 2 and the base-side moving frame 23 with a space between them so that they can rotate up and down, and has the upper ends of the crossbars 25, 26 attached to the connecting frame 18 on the rear side of the support base 3 and the support-side moving frame 24 with a space between them so that they can rotate up and down. The crossbars 25, 26 are connected at their centers so that they can rotate up and down.

[0032] Furthermore, the lifting mechanism 5 has an actuator 27 mounted between the center of the connecting frame 12 on the front side of the base 2 and the center of the support-side moving frame 24 so as to be vertically rotatable. The actuator 27 is composed of a motor and a rod, and the motor side (base end side) is mounted to the connecting frame 12 so as to be vertically rotatable, and the rod side (tip end side) is mounted to the support-side moving frame 24 so as to be vertically rotatable. A protector 28 is provided below the actuator 27 of the lifting mechanism 5 to protect the actuator 27 from below (to protect the actuator 27 above from a force from below). The protector 28 is mounted to the lower part of the connecting frame 12 in a state of extending horizontally forward.

[0033] The lifting mechanism 5 is configured to extend and retract the rod of the actuator 27, thereby raising and lowering the support table 3 (receiving table 4) up and down relative to the base 2. Note that the lifting mechanism 5 is not limited to the above configuration as long as it is capable of raising and lowering the support table 3 (receiving table 4) up and down relative to the base 2.

[0034] The upper body raising mechanism 6 is provided with a support frame 29 extending in the left-right direction between the rear mid-points of the support platform frames 14, 15, with the central portion curved downward toward the front, and support arms 30, 31 extending upward toward the front are attached to the central portion of the support frame 29 at intervals on the left and right. A base end portion (front end portion) of a movable body 32 extending in the front-rear direction is supported between the left and right support arms 30, 31 so as to be rotatable up and down, and rollers 33, 34 are supported on the left and right sides of a tip end portion (rear end portion) of the movable body 32 so as to be rotatable. The left and right rollers 33, 34 are in contact with the lower portion of the upper body support base 20 so as to be able to roll along the upper body support base 20. The movable body 32 is supported at the tips of the left and right support arms 30, 31 by a support mechanism described later.

[0035] In addition, upper body raising mechanism 6 has support frame 35 attached between the rear ends of support platform frames 14, 15, extending in the left-right direction, and support body 36 attached to the center of support frame 35, extending downward.

[0036] Furthermore, the upper body raising mechanism 6 has an actuator 37 attached between the front lower part of the support body 36 and the lower middle part of the movable body 32 so as to be vertically rotatable. The actuator 37 is composed of a motor and a rod, and the motor side (base end side) is attached to the support body 36 so as to be vertically rotatable, and the rod side (tip end side) is attached to the movable body 32 so as to be vertically rotatable. A protector 38 is provided below the actuator 37 of the upper body raising mechanism 6 to protect the actuator 37 from below (to protect the actuator 37 above from a force from below). The protector 38 has a base end attached to the front lower part of the support body 36 in a state of being bent forward and upward, and a tip end attached to the center rear part of the support frame 29.

[0037] 4, upper body raising mechanism 6 is capable of raising and lowering upper body support base 20 up and down relative to support base 3 by extending and contracting the rod of actuator 37. Note that upper body raising mechanism 6 is not limited to the above configuration as long as it is capable of raising and lowering upper body support base 20 up and down relative to support base 3.

[0038] The lower body raising mechanism 7 has a support frame 39 extending in the left-right direction attached between the front sides of the middle parts of the support platform frames 14, 15, and support arms 40, 41 extending toward the upper front side attached at a distance from each other to the left and right at the center of the support frame 39. A base end (rear end) of a movable body 42 extending in the front-rear direction is supported between the left and right support arms 40, 41 so as to be rotatable up and down, and rollers 43, 44 are supported on the left and right sides of a tip end (front end) of the movable body 42 so as to be rotatable. The left and right rollers 43, 44 are in contact with the lower part of the thigh support base 21 so as to be able to roll along the thigh support base 21. The movable body 42 is supported by the support arms 40, 41 by a support mechanism described later.

[0039] In addition, lower body raising mechanism 7 has support frame 45 attached between the rear sides of the middle portions of support platform frames 14, 15, extending in the left-right direction, and support body 46 attached to the center of support frame 45 and extending downward.

[0040] Furthermore, the lower body raising mechanism 7 has an actuator 47 attached between the front lower part of the support 46 and the lower rear part of the movable body 42 so as to be freely rotatable up and down. The actuator 47 is composed of a motor and a rod, and the motor side (base end side) is attached to the support 46 so as to be freely rotatable up and down, and the rod side (tip end side) is attached to the movable body 42 so as to be freely rotatable up and down. A protector 48 is provided below the actuator 47 of the lower body raising mechanism 7 to protect the actuator 47 from below (to protect the actuator 47 above from a direct force from below). The protector 48 has a base end attached to the front lower part of the support 46 in a state in which it is bent forward and forward, and the bifurcated tip end is attached to the center rear part of the support frame 39 with a gap between them on the left and right.

[0041] 5, the lower body raising mechanism 7 is capable of raising and lowering the lower body support base (thigh support base 21 and lower leg support base 22) up and down with respect to the support base 3 by extending and retracting the rod of the actuator 47. Note that the lower body raising mechanism 7 is not limited to the above configuration and may be configured such that the actuator 37 of the upper body raising mechanism 6 and the movable body 42 are interlocked together without using the actuator 47 as long as it can raise and lower the lower body support base (thigh support base 21 and lower leg support base 22) up and down with respect to the support base 3.

[0042] The lower body support (thigh support 21 and lower leg support 22) is provided with the base end of the thigh support 21 on the support base 3 so that it can be raised and lowered, and the base end of the lower leg support 22 is provided at the tip of the thigh support 21 so that it can be bent up and down, so that when the lower body raising mechanism 7 is driven, the base end of the lower leg support 22 is bent at the tip of the thigh support 21 as the thigh support 21 is raised and lowered. At that time, the tip of the lower leg support 22 is in a free state and slides along the support base 3 (support base frames 14, 15) etc. due to its own weight.

[0043] Therefore, as shown in Figures 6 and 7, when the support base 3 and the receiving base 4 are lowered to the lowest point relative to the base 2 to lower the height (step) between the floor 49 and the upper surface of the receiving base 4, if there is a protruding member (for example, caster parts 10, 11) that protrudes above the upper surface of the support base 3, the protruding member will collide with the tip of the lower leg receiving base 22, preventing the lower leg receiving base 22 from moving smoothly and causing damage to the lower leg receiving base 22 and the protruding member, etc.

[0044] Therefore, in the above-mentioned reclining bed 1, a lower leg support guide 50 is provided in order to raise the tip of the lower leg support 22 toward the upper side of the protruding member (e.g., caster portions 10, 11) that protrudes above the base 2 when the support base 3 and the receiving base 4 are lowered to the lowest position relative to the base 2.

[0045] The crus support guide 50 is attached to the upper surfaces of the left and right support frame 14, 15 of the support base 3. The crus support guide 50 has a low-front, high-rear inclined surface 51 at its front end, and a flat surface 52 of the same height at its rear.

[0046] The lower leg support 22 is provided with a slider 53 at its tip, and when the thigh support 21 is raised, the slider 53 at the tip of the lower leg support 22 slides along the upper surface of the support frame 14, 15, and as shown in Fig. 8, the slider 53 slides along the inclined surface 51 of the lower leg support guide 50, whereby the tip of the lower leg support 22 rises above the protruding member (here, the caster part 10) protruding above the base 2, avoiding a collision between the lower leg support 22 and the protruding member (caster part 10), and then the slider 53 slides at the same height along the flat surface 52 of the lower leg support guide 50. When the thigh support 21 is laid down, the above-mentioned movement of the thigh support 21 when it is raised is reversed. In addition, the sliding body 53 is not limited to wheels and may be a molded body made of resin, rubber, or the like as long as it can smoothly move the tip of the lower leg support 22 when the thigh support 21 is raised or lowered.

[0047] The upper part of the crus support guide 50 is accommodated in a recess 54 provided in the lower part of the crus support 22, which receives the lower part of the lying person's crus on its upper surface when the support base 3 and support base 4 are lowered to the lowest position relative to the base 2. The crus support 22 has a flexible net-like support surface 56 attached to the upper part of a rectangular frame-shaped support frame 55, and a recess 54 is formed below the support surface 56. The recess 54 of the crus support 22 is also adapted to accommodate the upper part of the protruding member (here, the caster parts 10, 11) that protrudes above the upper surface of the support base 3 when the support base 3 and support base 4 are lowered to the lowest position relative to the base 2. In this way, in the reclining bed 1, when the support base 3 is lowered to the lowest position relative to the base 2, the lower leg support guide 50 and the protruding member (here, the caster portion 10) are accommodated in the recess 54 of the lower leg support 22, so that the height between the support base 4 and the floor 49 can be lowered when the support base 3 is lowered to the lowest position, making it easier for a reclining person to get on and off the reclining bed 1 and also reducing the impact on the body in the event of a fall.

[0048] Since the lower leg support guide 50 is provided on the upper part of the support base frames 14, 15 of the support base 3, when the thigh support base 21 is raised or lowered, the sliding body 53 at the tip of the lower leg support base 22 always slides along the lower leg support base guide 50, regardless of the raised or lowered state of the support base 3. However, this is not limited to this and the sliding body 53 may also be provided on the protruding member (here, the caster portion 10).

[0049] For example, as shown in Fig. 9, a lower leg support guide 57 is attached to the front side of the caster part 10 attached to the front end of the base frame 8, 9 of the base 2, and a sliding body 58 longer than the sliding body 53 is attached to the tip of the lower leg support 22. When the protruding member protrudes above the upper surface of the support 3 due to the elevation state of the support 3, when the thigh support 21 is raised, the sliding body 58 at the tip of the lower leg support 22 slides along the flat surface 59 of the lower leg support guide 57, and halfway, the sliding body 58 slides along the inclined surface 60 of the lower leg support guide 57, so that the tip of the lower leg support 22 rises above the caster part 10 protruding above the base 2, avoiding a collision between the lower leg support 22 and the caster part 10, and then the sliding body 58 slides at the same height along the upper end surface 61 of the caster part 10. On the other hand, when the protruding member does not protrude above the upper surface of the support base 3 (when the support base 3 is raised to such an extent that the protruding member does not protrude above the support base 3), when the thigh support base 21 is raised, the sliding body 58 at the tip of the lower leg support base 22 slides at the same height along the upper surface of the support base frames 14, 15. When the thigh support base 21 is lowered, the thigh support base 21 moves in the opposite direction to the movement when it is raised. When the lower leg support base guide 57 is provided on the protruding member in this way, the lower leg support base 22 does not come into contact with the lower leg support base guide 57 except when the support base 3 is in the vicinity of the most lowered position, and the tip of the lower leg support base 22 does not move up and down relative to the support base frames 14, 15. In addition, it is not limited to the case where a horizontally long slider 58 is provided at the tip of the lower leg support 22 and the slider 58 slides along either the lower leg support guide 57 or the support base frame 14, 15, but a slider that slides along the lower leg support guide 57 and a slider that slides along the support base frame 14, 15 may be provided separately at the tip of the lower leg support 22.

[0050] As described above, in the reclining bed 1, the base end of the thigh support 21, which receives the thighs of a person lying down, is provided on the support base 3 so as to be freely raised and lowered, and the base end of the lower leg support 22, which receives the lower leg of a person lying down, is provided on the tip of the thigh support 21 so as to be freely bent up and down, so that the base end of the lower leg support 22 bends at the tip of the thigh support 21 as the thigh support 21 is raised and lowered.When the thigh support 21 is raised with the support base 3 at its lowest position relative to the base 2, the tip of the lower leg support 22 slides along the lower leg support guides 50, 57 provided to raise the tip of the lower leg support 22 above the protruding members such as caster members 10, 11 that protrude above the support base 3, thereby avoiding collision between the tip of the lower leg support 22 and the protruding members.

[0051] Therefore, in the reclining bed 1 configured as described above, the lower leg support 22 can be moved smoothly even when the support base 3 is lowered to the lowest position relative to the base 2, and damage due to collision between the lower leg support 22 and the protruding member can be prevented.

[0052] As a result, in the reclining bed 1, the support base 3 can be lowered to the lowest position so that the height between the receiving base 4 and the floor 49 is as low as possible, making it easy to get on and off the reclining bed 1, and the caster sections 10, 11, etc. can be made as large as possible so that the reclining bed 1 can be easily moved.

[0053] Further, the reclining bed 1 is configured such that the lower leg support guides 50, 57 are arranged so as to be accommodated in the recesses 54 provided in the lower part of the lower leg support 22, the upper surface of which receives the lower leg of a recumbent person.

[0054] Therefore, in the reclining bed 1 of the above configuration, the lower leg support guides 50, 57 are accommodated in the recess 54 of the lower leg support 22 when the support base 3 is lowered to its lowest position relative to the base 2, so that even if the lower leg support guides 50, 57 are provided, the height between the support base 4 and the floor 49 can be reduced when the support base 3 is lowered to its lowest position.

[0055] In addition, the reclining bed 1 is configured such that a lower leg support guide 50 is provided on the support base 3, and when the thigh support 21 is raised or lowered, the tip of the lower leg support 22 always slides along the lower leg support guide 50.

[0056] Therefore, in the reclining bed 1 having the above-mentioned configuration, the movement of the lower leg support 22 linked to the raising and lowering of the thigh support 21 can be made uniform regardless of the raised and lowered state of the support base 3.

[0057] Further, the reclining bed 1 is configured such that the leg support guide 57 is provided on a protruding member that protrudes above the support base 3 when the support base 3 is lowered to the lowest position relative to the base 2.

[0058] Therefore, in the reclining bed 1 having the above-mentioned configuration, even if the protruding members such as the caster parts 10, 11 are changed to those of a different size, it is possible to avoid collision between the protruding members and the tip of the lower leg support 22.

[0059] In addition, a slider 58 is provided at the tip of the lower leg support 22, and depending on the raised and lowered state of the support base 3, when the protruding member protrudes upward beyond the support base 3, the slider 58 slides along the lower leg support guide 57, and when the protruding member does not protrude upward beyond the support base 3, the slider 58 slides along the support base 3 (support base frames 14, 15).

[0060] Therefore, in the reclining bed 1 of the above configuration, by simply providing a common sliding body 58 at the tip of the lower leg support 22, collision between the protruding member and the tip of the lower leg support 22 can be avoided regardless of the raised or lowered state of the support base 3.

[0061] Moreover, the reclining bed 1 is configured so that the protruding members are the caster parts 10, 11 provided on the base 2.

[0062] Therefore, in the reclining bed 1 having the above-mentioned configuration, the caster parts 10, 11 can be made large so that the reclining bed 1 can be easily moved. [Explanation of symbols]

[0063] 1 Reclining bed 2 units 3 Support stand 4 Rest 5 Lifting mechanism 6 Upper body raising mechanism 7 Lower body raising mechanism 8,9 Base frame 10,11 Caster part 12,13 Connecting frame 14,15 Support frame 16 Footboard 17 Headboard 18 Connecting frame 19 Buttocks cradle 20 Upper body cradle 21 Thigh cradle 22 Lower leg cradle 23 base side moving frame 24 support side moving frame 25,26 Crossbar 27 Actuator 28 Protective body 29 Support frame 30, 31 support arm 32 movable body 33,34 Roller 35 Support frame 36 Support 37 Actuator 38 Protective body 39 Support frame 40, 41 Support arm 42 Movable body 43,44 Roller 45 Support frame 46 Support 47 Actuator 48 Protector 49 Floor 50 Lower leg cradle guide 51 Inclined surface 52 Flat surface 53 Sliding body 54 Recess 55 Receiving frame 56 Receiving surface 57 Lower leg support guide 58 Sliding body 59 Flat surface 60 Inclined surface 61 Top end surface

Claims

1. A reclining bed having a base on which a support platform is provided so as to be movable up and down, and a support platform for supporting the body of a person lying down on the support platform is provided so as to be movable up and down, The base end of the thigh support for receiving the thighs of the lying person is provided on the support base so as to be freely raised and lowered, and the base end of the lower leg support for receiving the lower leg of the lying person is provided at the tip of the thigh support so as to be freely bent up and down, so that the base end of the lower leg support is bent at the tip of the thigh support as the thigh support is raised and lowered, This reclining bed is characterized in that when the support platform is lowered to the lowest position relative to the base and the thigh support platform is raised, the tip of the lower leg support platform slides along a lower leg support platform guide provided to raise the tip of the lower leg support platform above a protruding member that protrudes above the support platform, thereby avoiding collision between the tip of the lower leg support platform and the protruding member.

2. 2. The reclining bed according to claim 1, wherein the lower leg support guide is arranged so as to be receivable in a recess provided in a lower part of the lower leg support, the upper surface of which supports the lower leg of a person reclining on his / her side.

3. A reclining bed as described in claim 1 or claim 2, characterized in that the lower leg support guide is provided on the support base, and when the thigh support is raised or lowered, the tip of the lower leg support always slides along the lower leg support guide.

4. 3. The reclining bed according to claim 1, wherein the lower leg support guide is provided on a protruding member that protrudes above the support base when the support base is lowered to the lowest position relative to the base.

5. A reclining bed as described in claim 4, characterized in that a sliding body is provided at the tip of the lower leg support base, and when the protruding member protrudes upward beyond the support base depending on the raised and lowered state of the support base, the sliding body slides along the lower leg support base guide, and when the protruding member does not protrude upward beyond the support base, the sliding body slides along the support base.

6. 5. The reclining bed according to claim 4, wherein the protruding member is a caster portion provided on the base.

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