JP2009125279A - Bed - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a bed of simple structure excellent in functionality which allows defecation on the spot. <P>SOLUTION: The bed includes a back part rest 61, a seat part rest 62, lower thigh part rest 63, and is converted into a chair shape. The seat part rest 62 includes a defecation port 62A corresponding to a thigh part of a user and a slide cover 10 for opening/closing the defecation port. The slide cover 10 is movable between an initial position which closes the defecation port 62A along a surface in parallel to the surface of the seat part rest 62 when the back part rest 61 stands up and an evacuation position which releases the defecation port 62A. Also, the slide cover 10 links a cover open/close driving part 53 for moving the slide cover 10 reciprocally between the initial position and the evacuation position. On both sides of the defecation cover 62A, a seat part 11 floatable up to a position where the surface height is higher than the slide cover 10 is provided. Before the slide cover 10 is moved, the seat part 11 is pushed up by a seat part lift driving part 52, and a buttocks part of the user is also pushed up together with the seat part 11. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a bed mainly intended for a care recipient such as a disabled person or a sick elderly person, and particularly relates to a bed in which a disabled person who has difficulty walking independently can perform defecation without leaving the bed.

  Conventionally, various beds with toilet bowls have been proposed so that a person requiring care needs to be a main subject so that stool can be performed while standing on the bed.

  For example, an opening that allows the toilet to be raised and lowered is provided corresponding to the position of the user's buttocks, and an opening / closing part that can be turned downward from a horizontal state is provided at the opening, and the opening / closing part is turned downward to open the opening. There has been proposed a bed in which the toilet is raised to a position where the toilet comes into contact with the user's buttocks through the opening (for example, Patent Document 1).

JP 2001-340398 A (paragraphs 0032 to 0061, FIGS. 1 to 7)

  However, in the configuration in which the opening corresponding to the toilet is opened by turning the opening / closing portion downward as in Patent Document 1, if the toilet is installed at a position corresponding to the opening, the opening / closing portion interferes with the toilet and the opening Since the toilet cannot be opened and closed, a toilet moving mechanism for retracting the toilet from directly below the opening is necessary, and the structure of the entire bed is complicated and the cost is increased.

  Moreover, in the opening / closing part that turns downward, there is a risk that the opening / closing part will open carelessly under its own weight or a load from the user and the user's buttocks will fit into the opening. In this regard, in Patent Document 1, a perforated cloth is stretched in the opening so that the cloth contacts the toilet seat of the toilet. It is difficult to support the buttocks, and it is not safe, and when closing the opening, the opening and closing part pushes up the sinking part of the user through the cloth. Requires a large driving torque, and the opening may not close due to insufficient torque.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a bed having a simple structure excellent in functionality capable of performing defecation on the spot.

In order to achieve the above object, the present invention
A seat rest 62 that supports the user's buttocks and thighs, a back rest 61 that is connected to one end of the seat rest to support the user's upper body, and can be raised and lowered; In a bed having a crus rest 63 that is connected to the other end of the seat rest 62 to support the thigh and is bent downward.
The seat rest 62 is provided with a defecation port 62A corresponding to the user's buttocks and a slide lid 10 for opening and closing the defecation port,
The slide lid 10 is movable between an initial position where the defecation port 62A is closed and a retreat position where the defecation port 62A is opened along a plane parallel to the surface of the seat rest 62 when the back rest 61 stands. With
The slide lid 10 is connected to a lid opening / closing drive unit 53 that reciprocates the slide lid 10 between the initial position and the retracted position.

  In addition, a guide rail 62D that guides the movement of the slide lid 10 is fixed to the seat rest 62, and the back rest 61 is formed with a rail receiving recess 61A that receives the guide rail 62D when the back rest 61 falls down. It is characterized by.

  In addition, toilet seats 11 that can float up to a position where the surface height is higher than the slide lid 10 are provided on both sides of the defecation opening 62A. Below the seat rest 62, the toilet seat is moved before the slide lid 10 is moved. A toilet seat lifting / lowering drive unit 52 that pushes up the user's buttocks through the unit 11 is provided.

  Further, the toilet T is installed at a position where the defecation port 62A faces when the back rest 61 stands.

  According to the bed of the present invention, since the slide lid that opens and closes the defecation opening is movable along a plane parallel to the surface of the seat rest, there is a risk that the defecation opening may be inadvertently opened. Since the slide lid does not interfere when opening and closing the toilet, even if the toilet is fixed at a fixed position corresponding to the toilet, there is no need for a mechanism to move the toilet forward, backward, left and right, and it is easy as a whole Can be made into a structure bed. Further, since the lid opening / closing drive unit is connected to the slide lid, the opening / closing of the defecation port can be automated using a fluid pressure cylinder or the like for the lid opening / closing drive unit.

  In addition, since the guide rail for guiding the movement of the slide lid is fixed to the seat rest, the slide lid can be moved smoothly, and the back rest has a rail receiving recess for receiving the guide rail when it is lying down. The mattress on the backrest is supported by the guide rail while preventing the mattress laid on the backrest from being pushed up by the guide rail when the backrest is lying down. This can prevent the mattress from sinking.

  In addition, toilet seats that can rise to a position where the surface height is higher than the slide lid are provided on both sides of the defecation port, and the toilet seat ascending / descending pushes up the user's buttocks via the toilet seat below the seat rest Since the drive part is provided, the toilet seat part supports the both sides of the user's buttocks and prevents the user's buttocks from falling into the toilet opening when the toilet opening is opened, while the toilet seat part by the toilet seat lifting and lowering drive part Further, by pushing up the user's buttocks, the slide lid can be moved well without load, and the user's buttocks can be prevented from being scratched by the slide lid.

  Furthermore, since the toilet bowl is installed at a position where the defecation opening faces, excrement falling from the defecation opening can be received by the toilet bowl without falling on the indoor floor.

  Hereinafter, the present invention will be described in detail with reference to the drawings. First, in FIG. 1, reference numeral 1 denotes a gantry. The gantry 1 includes a base frame 2 and a movable frame 3. The base frame 2 is a rigid body formed by joining a plurality of steel materials, and the support legs 21 are fixed to the front, rear, left and right, and the support columns 23 are fixed to the pair of left and right side beams 22 extending in the front-rear direction. ing.

  As is apparent from FIGS. 2 and 3, the base frame 2 is provided with a pair of left and right guide rails 24 in parallel inside the side beam 22, and a pair of left and right brackets 25 are provided on both guide rails 24. The bracket 25 is configured so that one end of a swing arm 4 described later is rotatably supported by the bracket 25.

  Further, as shown in FIG. 1, a motor-driven cylinder device 5 is installed at one end of the base frame 2 in the longitudinal direction as a drive source for reciprocating the movable frame 3 in the front-rear direction. The cylinder device 5 may be a hydraulic cylinder or a pneumatic cylinder.

  On the other hand, as shown in FIGS. 1 and 4 to 5, the movable frame 3 is also a rigid body configured by joining a plurality of steel materials, and the lower portion thereof engages with the guide rail 24 of the base frame 2. A moving roller 31 is mounted. The movable frame 3 is connected to the telescopic rod portion 51 of the cylinder device 5 as shown in FIG. 1, and the movable frame 3 extends along the length direction (guide rail 24) in the base frame 2 by the expansion and contraction operation. It is designed to reciprocate. 4 and 5, reference numeral 32 denotes a coupling pin fixed to the movable frame 3.

  In FIG. 1, reference numeral 6 denotes a flat floor board frame arranged on the gantry 1. The floorboard frame 6 includes a back rest 61 that supports the user's upper body, a seat rest 62 that supports the user's buttocks and thighs, a crus rest 63 that supports the user's lower leg, and the use It is divided into a foot rest 64 that supports a person's foot, and adjacent ones of these rests 61 to 64 are connected to each other so that they can be bent. The back rest 61 and the seat rest 62 are connected to each other by a hinge 65A that rises from the side edges of both 61 and 62, and can be bent in a valley-folded state that protrudes downward. The thigh rest 63, the crus rest 63, and the foot rest 64 are connected to each other by hinges 65B and 65C, respectively, and can be bent in a mountain-folded state that protrudes upward.

  And the mattress M1-M3 divided into 3 is attached on the surface of each rest 61-64, and a user can lie down on the mattress M1-M3.

  Here, a pair of left and right actuating plates 66 extending to the lower position of the seat rest 62 is fixed to the back surface of the back rest 61, and the gap between the actuating plates 66 and 66 is apparent in FIGS. A groove-shaped guide rail 67 is fixed to the base.

  As shown in FIG. 1, a roller 41 is rotatably fitted in the guide rail 67, and the roller 41 is rotatably supported at the tip of the swivel arm 4. Further, an intermediate portion of the operation plate 66 is rotatably coupled to the upper end portion of the column 23 constituting the base frame 2. As a result, the back rest 61 is supported so as to be pivotable in the vertical direction around the coupling portion P1 between the operating plate 66 and the base frame 2, and undulates around the connecting portion (hinge 65A) with the seat rest 62. It will be. Further, the distal end portion 66A of the operating plate 66 is below the connecting portion P1 between the operating plate 66 and the base frame 2, and the front portion of the movable frame 3 (the connecting pin 32 on the user's head side). They are connected by a transmission link 7.

  The transmission link 7 is slightly inclined with respect to the moving direction of the movable frame 3 and is set so that one end side coupled to the operation plate 66 is lower than the other end side, thereby driving the cylinder device 5 to be movable. When the frame 3 is moved to the right in FIG. 1, a tensile force by the transmission link 7 acts on the tip portion 66A of the operating plate, so that the operating plate 66 swings about the coupling portion P1, so that the back rest When the movable frame 3 is moved leftward in FIG. 1, the backrest 61 is turned downward (falling down) by the pressing of the distal end portion 66 </ b> A of the operating plate by the transmission link 7. Operation).

  When the back rest 61 turns downward and falls down in a horizontal state as shown in FIG. 1, the back surface of the back rest 61 comes into contact with the back receiving portion 26 arranged on one end of the base frame 2 so that the back rest 61 is in the horizontal state. A leg (not shown) is fixed to the back surface of the back rest 61 at a right angle instead of the back support portion 26, and the leg rests on the upper surface of the base frame 2 when the back rest 61 falls down. Alternatively, the backrest 61 may be supported upright on the floor surface.

  The cylinder device 5 is not limited to connecting the telescopic rod portion 51 to the movable frame 3, but is a clevis-type cylinder device 5 at both ends, and this is used as the base frame 2 and the revolving arm 4 or the back of the back rest 61. In this case, the movable frame 3 can be moved while the backrest 61 is turned.

  On the other hand, when the floor board frame 6 is developed into a flat state as shown in FIG. 1 and is formed into a bed shape, the seat rest 62, the crus rest 63, and the foot rest 64 are moved by the movable frame 3 constituting the gantry 1. Supported.

  Among these, the seat part rest 62 is connected to the rear part (the user's foot side) of the movable frame 3 via the connecting rod 8 on the connecting side (hinge 65B side) with the crus rest 63. In FIG. 1, reference numeral 68 denotes a bracket fixed to the back surface of the seat rest 62, and one end of the connecting rod 8 is rotatably coupled to the bracket 68. Further, the crus rest 63 is connected only between the seat rest 62 and the foot rest 64, but not to the gantry 1, and the foot rest 64 is connected to the crus. The end opposite to the rest 63 is connected to the upper end of the movable frame 3 via a hinge member 69.

  Thus, in the bed configured as described above, the floor plate frame 6 is developed in a flat shape as shown in FIG. 1 by driving the cylinder device 5 and moving the movable frame 3 to the right in FIG. The operation is changed from a shape to a chair shape, and the operation will be described later.

  Next, FIG. 8 shows the movable frame partially enlarged. As is apparent from this figure, a trigger lever 33 is attached to the movable frame 3. The trigger lever 33 is for causing the connecting rod 8 to perform a definite movement. One end of the trigger lever 33 is rotatably coupled to the movable frame 3, and the other end is formed with a recess 33A cut out at a right angle. The trigger lever 33 can swing up and down around the coupling portion P2 with the movable frame 3. In the recess 33A, a pin P3 concentric with the coupling portion between the connecting rod 8 and the seat rest 62 is provided. Supported. A roller 9 is attached to the pin P3, and the roller 9 is supported by a receiving seat 34 formed on the inner surface of the movable frame 3. Further, a protrusion 33B is formed at one end on the fulcrum side of the trigger lever 33, and a spring for applying a counterclockwise urging force to the trigger lever 33 in FIG. 8 between the protrusion 33B and the movable frame 3. 35 is multiplied. Further, as is apparent from FIG. 8, the connecting rod 8 has a long hole 8A at one end on the coupling side with the movable frame 3, and is allowed to move in the length direction by the long hole 8A.

  According to the trigger lever 33 as described above, when the upward turning of the back rest 61 shown in FIG. 1 is started, the seat rest 62 is pushed up against the load from above by the user, 8 can be provided with a notch turning upward.

  Next, FIG. 9 shows an enlarged connection portion between the foot rest and the movable frame. As is apparent from this figure, a bracket 36 is attached to the upper end of the movable frame 3, and one end of the hinge member 69 is rotatably supported by the bracket 36. The hinge member 69 is made of a metal plate whose front end is bent, and its front end is rotatably coupled to a bracket 64A fixed to the back surface of the foot rest 64. As a result, the foot rest 64 can swing up and down around the joint P4 with the hinge member 69, and can swing up and down around the joint P5 between the hinge member 69 and the movable frame 3. However, instead of the hinge member 69 as shown in FIG. 9, a shaft may be attached to the bracket 64 </ b> A, while a long hole for guiding the movement of the shaft may be formed in the movable frame 3.

  Here, the operation of the bed configured as described above will be described. FIG. 10 is an operation diagram of the link system showing the state in which the floorboard frame is converted into a chair shape in order.

  As is clear from FIG. 10, when the floorboard frame 6 is converted into a chair shape, the backrest 61 swings upward about the joint P1 (rotation fulcrum) between the base frame 2 and the operation plate 66 shown in FIG. Finally, the seat rest 62 rises up to the upright state around the hinge 65A. In the state in which the backrest 61 is in a lying state, the joint portion P1 (the rotation fulcrum represented by a black circle in FIG. 10) between the operating plate 66 and the base frame 2 is located at the seat portion rest 62 rather than the position of the hinge 65A. Therefore, when the backrest 61 starts to turn upward, the seat rest 62 connected to the hinge 65A by the hinge 65A is pulled up by the back rest 61. The hinge 65B side is also pushed up by the action of the trigger lever 33 shown in FIG. For this reason, the articulating rod 8 obtains an upward turning stagnation centering on the connecting portion with the movable frame 3 (that is, removes the thought point) and applies an upward turning force from the back rest 61 through the seat rest 62. Given. Accordingly, since the hinge 65B side of the seat rest 62 is largely pushed upward from the hinge 65A side by the upward turning of the connecting rod 8, the seat rest 62 and the crus rest 63 during the upward turning of the back rest 61 The connecting portion (hinge 65B) bends upward in a convex shape as shown in FIGS. 10 (a) to 10 (b). For this reason, the user on the floor board frame 6 has an unreasonable posture because the buttocks do not shift to the foot side and the thigh and lower leg are bent while being supported by the seat rest 62 and the lower leg rest 63. I can't be forced.

  Further, when the connecting rod 8 shifts from the upright state to the lying down state by continuing the upward turning of the back rest 61, the seat rest 62 is gradually lowered while being pushed out toward the crus rest 63 side.

  On the other hand, when the movable frame 3 moves rightward in FIG. 10, the leg rest 64 is pulled in the same direction, and the crus rest 63 connected thereto is turned counterclockwise in FIG. Therefore, the crus rest 63 and the foot rest 64 are gradually folded in half, and when the back rest 61 is raised to a fixed position (upright standing state), the seat rests as shown in FIG. The part rest 62 is supported horizontally on the gantry and the foot rest 64 is folded to the back side of the crus rest 63 at a position below the seat rest 62. In the state where the floorboard frame 6 is bent into a chair shape, the crus rest 63 may be perpendicular to the seat rest 62, but according to this example, as shown in FIG. The leg rest 63 is bent at an acute angle with respect to the seat rest 62 that is horizontal, and the user (sitting person) on the seat rest 62 bends the lower limb (leg part) into an acute angle. Therefore, the seated person can move up the center of gravity of the body forward and can stand up without assistance from a caregiver.

  FIGS. 11A and 11B are diagrams in which a drive system for bending the floorboard frame is omitted, in which FIG. 11A shows a state in which the backrest 61 is lying down, and FIG. 11B shows a state in which the backrest 61 is raised. In FIG. 11, T is a toilet (a flushing type or a portable type with a water supply / drain pipe connected), and this toilet T is installed on the indoor floor at a position directly below the seat rest 62 when the back rest 61 stands. A defecation port, which will be described later, formed on the seat rest 62 in the state 11 (b) is opposed to the upper end opening of the toilet T.

  Reference numeral 52 denotes a toilet seat lifting / lowering drive unit that pushes up a later-described toilet seat portion provided on the seat portion rest 62, and 53 denotes a lid opening / closing drive portion that moves a later-described slide lid provided on the seat portion rest 62. In this example, the toilet seat lifting / lowering drive unit 52 is a fluid pressure cylinder attached to the base frame 2 below the seat rest 62 with the head side (rod side) facing upward, and a rolling roller 52A is attached to the tip of the rod. It is attached. On the other hand, the lid opening / closing drive unit 53 is a fluid pressure cylinder that is horizontally attached to the base frame 2 at a position below the lying backrest 61, and the rod tip is connected to the slide lid via a connection fitting 54. Has been.

  The toilet seat lifting / lowering drive unit 52 may be configured such that a cam instead of the rolling roller 52A is rotationally driven by a motor. Further, a linear motor can be used as the lid opening / closing drive unit 53.

  Next, FIG. 12 shows a cross section of the seat rest 62 at the position of line CC in FIG. As is apparent from this figure, the toilet seat lifting / lowering drive unit 52 is disposed at positions on both the left and right sides of the toilet bowl T. In FIG. 12, 62 </ b> A is the defecation port, and the defecation port 62 </ b> A is formed at the center in the width direction of the seat rest 62. A pair of left and right ribs 62B forming both side edges of the defecation port 62A is fixed with a projecting piece 62C, and the slide lid 10 is supported on the defecation port 62A by the projecting piece 62C. In particular, the slide lid 10 can move between a position (initial position) for closing the defecation port 62A and a position (retraction position) for opening the defecation port 62A along a plane parallel to the surface of the seat rest 62. It is said that. On the other hand, 11 is the toilet seat part, and the toilet seat part 11 is provided on both the left and right sides of the defecation port 62A with the slide lid 10 interposed therebetween, and the toilet seat part 11 includes a rolling roller 52A constituting the toilet seat lifting / lowering drive part 52 and The rib 62B is supported from below.

  Here, the slide lid 10 and the toilet seat 11 are configured by fixing cushions 10B and 11B having the same surface height as the mattress M2 of the seat rest 62 on the hard bottom plates 10A and 11A, respectively.

  As shown in FIG. 13, the mattress M2 shared by the seat rest and the lower leg rest has a notch M2a corresponding to the slide lid 10 and the toilet seat 11, and the toilet seat is formed in the notch M2a. 11, a U-shaped cushion 11B is fitted, and a cushion 10B constituting the slide lid 10 is fitted inside the cushion 11B.

  The user's buttocks are supported by the slide lid 10 having the cushions 10B and 11B and the toilet seat 11. In particular, the toilet seat 11 can be lifted to a position where the surface height is higher than that of the slide lid 10, and the toilet seat 11 is pushed up by the toilet seat lifting / lowering drive unit 52, so that The collar portion is also pushed up, and the slide lid 10 is moved in this state. In FIG. 12, the alternate long and short dash line represents the user's buttocks.

  Next, FIG. 14 shows a schematic plan view of the floor board frame 6 developed in a flat shape. As is clear from this drawing, a pair of left and right guide rails 62D for guiding the movement of the slide lid 10 are fixed to the seat rest 62. Both the guide rails 62D and 62D have an L-shaped cross section, and the lid opening / closing drive unit 53 is positioned therebetween. The back rest 61 is formed with a rail receiving recess 61A corresponding to the guide rail 62D, and when the back rest 61 falls down, the guide rail 62D is fitted into the rail receiving recess 61A to be received. Yes. Here, when the backrest 61 stands up, the slide lid 10 is moved to the initial position shown in FIG. 14 (position where the defecation port 62A is closed) and the retracted position (defecation) on the guide rail 62D side by the expansion / contraction drive of the lid opening / closing drive section 53. Reciprocation between the opening 62A and the opening position).

  Note that the connecting metal fitting 54 for connecting the lid opening / closing drive unit 53 to the slide lid 10 can be bent at the dotted line position in FIG. 14 and is against the rod tip of the fluid pressure cylinder constituting the lid opening / closing drive unit 53. Thus, the connecting metal fitting 54 is connected with play in the vertical direction, so that the tilting movement of the seat rest 62 as shown in FIG. 10 is allowed. On the other hand, the seat rest 62 is formed with a convex portion 62E projecting toward the crus rest 63, and the crus rest 63 is formed with a concave portion 63A for receiving the convex portion 62E corresponding to the convex portion 62E. Yes. In addition, this recessed part 63A receives the front-end | tip part of the toilet bowl T at the time of standing of the backrest 61 like FIG.11 (b).

  Further, as is apparent from FIG. 15, the toilet seat 11 has an arm portion 11C extending toward the convex portion 62E, and the tip of the arm portion 11C is connected to the seat portion rest 62 at the pin P6 inside the convex portion 62E. It is joined. Therefore, when the toilet seat 11 receives a pressing force from the toilet seat lifting / lowering drive unit 52, the toilet seat 11 turns upward with the pin P6 as a fulcrum and the surface height is higher than the slide lid 10 in an inclined posture in which the opposite side of the pin P6 is raised. Ascend to the position. 15 shows the position of the rolling roller 52A when the toilet seat 11 is pushed up.

  FIG. 16 is a state before the toilet seat part 11 is pushed up in the initial position where the slide lid 10 closes the defecation opening 62A. In this state, the surface height of the toilet seat part 11 and the slide lid 10 is the same. ing. Here, after the toilet seat lifting / lowering drive unit 52 is extended and the toilet seat unit 11 is pushed up, the lid opening / closing drive unit 53 is contracted to move the slide lid 10 to the retracted position. In this example, since the seat rest 62 moves back and forth (left and right direction in FIG. 16) when the back rest 61 is raised and lowered, the lid opening / closing drive portion 53 is expanded and contracted while the back rest 61 is raised and lowered. No moving force is applied to the slide lid 10.

  FIG. 17 shows a state in which, after the toilet seat 11 is pushed up, the slide lid 10 is moved to the retracted position and the defecation port 62A is opened. As is apparent from this figure, when the toilet seat part 11 is pushed up by the toilet seat lifting / lowering drive part 52, the user's buttocks supported by the toilet seat part 11 are also pushed up. Since the pressure does not act, the slide lid 10 can be moved smoothly. When the slide lid 10 is moved to the retracted position, the toilet seat lifting / lowering drive unit 52 is reduced, so that the toilet seat unit 11 is lowered to enter a defecation state. After defecation, a hand switch (not shown) is turned on. The toilet seat portion 11 is pushed up again by the operation, and then the slide lid 10 is returned to the initial position, and then the toilet seat portion 11 is lowered.

  As mentioned above, although the structural example of this invention was demonstrated, this invention should just be the structure which has the above-mentioned slide lid 10 and the toilet seat part 11 as a bed used as a chair shape, and the mechanism which makes a bed itself a chair shape is as follows. It is not restricted to the above example.

Side view showing a basic configuration example of a bed according to the present invention (bed-shaped state) Side view of the base frame that constitutes the mount AA enlarged sectional view of FIG. Side view of the movable frame that constitutes the mount BB expanded sectional view of FIG. Front view of backrest Side view of backrest Partial enlarged view of movable frame Enlarged view showing the connection between the foot rest and the movable frame Operational diagram of the bed according to the present invention Side view omitting the drive mechanism for bending the bed into a chair shape Sectional drawing of the seat part rest in the CC line position of FIG.11 (b) Top view showing form of mattress including slide lid and toilet seat Floor plan frame development Plane enlarged view of the seat rest Explanatory drawing which shows the state which has a slide lid in an initial position Explanatory drawing which shows the state which pushed up the toilet seat part and moved the slide lid to the retracted position

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Slide lid 11 Toilet seat part 52 Toilet seat raising / lowering drive part 53 Lid opening / closing drive part 61 Back part rest 61A Rail accommodation recessed part 62 Seat part rest 62A Defecation port 62D Guide rail 63 Lower leg part rest

Claims (4)

A seat rest that supports the user's buttocks and thighs, a back rest that is connected to one end of the seat rest to support the user's upper body, and the user's lower leg In a bed having a crus rest connected to the other end of the seat rest to be able to bend and bendable downward,
The seat rest is provided with a defecation opening corresponding to the user's buttocks and a slide lid for opening and closing the defecation opening,
The slide lid is movable between an initial position for closing the defecation port and a retreat position for opening the defecation port along a plane parallel to the surface of the seat rest when the back rest is standing. With
The bed, wherein the slide lid is connected to a lid opening / closing drive unit for reciprocating the slide lid between the initial position and the retracted position.   A guide rail for guiding the movement of the slide lid is fixed to the seat rest, and a rail receiving recess for receiving the guide rail when the back rest falls is formed on the back rest. The bed according to claim 1.   On both sides of the defecation opening, toilet seats that can float up to a position where the surface height is higher than the slide lid are provided, and below the seat rest, the toilet seat is placed before the slide lid is moved. The bed according to claim 1 or 2, further comprising a toilet seat lifting and lowering drive unit that pushes up the user's buttocks.   The bed according to any one of claims 1 to 3, wherein a toilet is installed at a position where the defecation opening faces when the back rest stands.

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