JP2004016558A - Reclinable bed device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a reclinable bed device that is usable while only a leg-raising floor part is raised or while only a back-raising floor part is raised. <P>SOLUTION: This reclinable bed device comprises a floor panel body 71 provided on a bed frame 31; a back-raising arm 57 for raising and lowering the back-raising floor part 74 of the floor panel body; a leg-raising arm 62 having an actuating roller 63 provided at its tip for raising and lowering the leg-raising floor part of the floor panel body; a drive mechanism 51 for driving the back-raising arm and the leg-raising arm to raise or lower them and operate the back-raising floor part and the leg-raising floor part in conjunction and for raising the back-raising floor part after the leg-raising floor part when each arm is driven in rising direction; and a cam body provided on the lower surface of the leg-raising floor part in such a way that the actuating roller 63 makes rolling contact therewith, to lower the leg-raising floor part into an approximately horizontal position when the back-raising floor part is raised to a predetermined angle after the leg-raising floor part is raised by the drive mechanism prior to the back-raising floor part. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wake-up type bed apparatus in which a floor plate is divided into a plurality of floors so that a user's upper body can be raised.
[0002]
[Prior art]
Generally, a wake-up type bed apparatus has a bed frame, and the bed frame is provided with a floor plate. This floor plate body is fixedly fixed to the bed frame, a raised floor portion rotatably connected to one end of the fixed floor portion, and rotatably connected to the other end of the fixed floor portion. It is divided into a first leg raised floor and a second leg raised floor.
[0003]
The bed frame is provided with a drive mechanism located on the lower surface side of the floor plate. The driving mechanism drives a back-raising arm that raises and lowers the back-raising floor, and a leg-raising arm that raises and lowers the first and second leg floors.
[0004]
Usually, the back raising arm and the leg raising arm are driven in conjunction with each other by the driving mechanism. That is, when the back-raising floor is driven in the rising direction during back-raising, the pair of leg-raising arms rise while bending in a mountain shape in conjunction with the driving. Therefore, since the user is lifted up at the same time as the upper body is raised, the hips are prevented from moving forward when the upper body is raised.
[0005]
[Problems to be solved by the invention]
By the way, according to the configuration in which the back-raised floor and the first and second leg-raised floors are linked, when the user's upper body is raised, the legs are lifted. As a result, the user may be stressed on the abdomen and may not be able to easily maintain the posture in which the upper body has been raised.
[0006]
On the other hand, the user may want to take a posture in which only the legs are lifted without raising the upper body, and if the upper body is raised to a predetermined angle, the legs are used to prevent the abdomen from being compressed. There are times when you want to take a lowered posture.
[0007]
However, according to the configuration in which the ups and downs of the back-raised floor and the first and second leg-raised floors are interlocked, it is not possible to use the vehicle with only one of these floors raised. Was inconvenient for the elderly.
[0008]
The present invention can be used in a state in which only one of the back-raised floor and the leg-raised floor is raised, and further, if the back-raised floor is raised to a predetermined angle, the leg-raised floor is raised. An object of the present invention is to provide a wake-up type bed device that allows a user to easily maintain a posture in a back-up state without squeezing the abdomen by causing the part to lie down.
[0009]
[Means for Solving the Problems]
According to the first aspect of the present invention, in the wake-up type bed apparatus capable of raising the user's upper body,
A bed frame,
A fixed floor portion fixed to the bed frame, a floor plate having a raised floor portion rotatably connected to one end of the fixed floor portion and a leg raised floor portion rotatably connected to the other end;
A back-raising arm for raising and lowering the floor portion of the floor plate body,
A leg raising arm provided with an operating roller at the tip for raising and lowering the floor raising floor portion of the floor plate body,
The back-raising arm and the leg-raising arm are driven up and down to link the back-raising floor and the leg-raising floor, and when each arm is driven in the raising direction, the back-raising floor is moved from the leg-raising floor to the lower side. A drive mechanism that delays
The leg raising floor is provided on the lower surface of the leg raising floor so that the operating roller is in rolling contact with the leg raising floor, and the driving mechanism raises the leg raising floor prior to the back raising floor. A cam body for causing the leg-raising floor to fall down substantially horizontally when raised to
A wake-up type bed device comprising:
[0010]
According to a second aspect of the present invention, the driving mechanism comprises:
A first rotation shaft on which a base end of the back-raising arm is rotatably supported;
A second rotating shaft to which a base end of the leg raising arm is fixed;
A drive source for rotating the first rotation shaft,
A transmission member for transmitting rotation of the first rotation shaft to the second rotation shaft;
An interlocking member that is provided on the first rotation shaft and that moves the back-lifting arm behind the leg-lifting arm to interlock in a rising direction when the first rotation shaft is rotationally driven by the driving source;
The wake-up type bed apparatus according to claim 1, further comprising:
[0011]
According to a third aspect of the present invention, a pair of rollers are provided at a predetermined interval at a tip end of the back-raising arm, and a guide rail with which the rollers are engaged is provided at a lower surface of the back-raising floor. The uplift-type bed device according to claim 2, wherein the back raising arm is held substantially horizontal by the engagement with the guide rail until the back lifting arm is driven in the rising direction by the interlocking member.
[0012]
According to a fourth aspect of the present invention, in a state in which the back-raising floor and the leg-raising floor lie down substantially horizontally, the tip of the back-raising arm is separated from the lower surface of the back-raising floor, 2. The wake-up type bed apparatus according to claim 1, wherein the operation roller of the raising arm is in contact with the cam body.
[0013]
According to the present invention, the leg-raised floor is raised before the back-raised floor, so that the leg-raised floor can be used in a state where only the leg-raised floor is raised. When raised at an angle of, the leg-raising floor portion can fall down substantially horizontally.
[0014]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
[0015]
1 to 5 show an embodiment of the present invention. FIG. 1 is an exploded perspective view of a wake-up type bed apparatus. The bed apparatus includes a base frame 1. The base frame 1 is formed by arranging a pair of long rods 2 and short rods 3 in a rectangular frame shape and connecting their adjacent ends by a first connecting member 4. The long rods 2 and the short rods 3 use rectangular tubular members.
[0016]
The first connecting member 4 has a caster 5 with a stopper at the lower end, and a mounting portion 7 at the upper end. The end of a pair of first and second arms 19a and 19b driven by a vertical drive mechanism 11 to be described later is pivotally supported by the mounting portion 7.
[0017]
The base frame 1 is provided with the vertical drive mechanism 11. The vertical drive mechanism 11 has a drive source 12. A drive shaft 13 is attached to the drive source 12, and the drive shaft 13 is configured to be driven forward and backward in the axial direction by the drive source 12.
[0018]
The tip of the drive shaft 13 is pivotally connected to a middle part of the interlocking rod 14 via a first bracket 15. One end and the other end of the interlocking rod 14 are pivotally connected to a first arm 17 provided at an intermediate portion of the rotating shafts 16a and 16b, respectively. A second bracket 18 is provided in the middle of the first arm 17 at a predetermined angle with respect to the first arm 17 with respect to the circumferential direction of the rotating shaft 16a. The drive source 12 is rotatably attached to the drive source 18. An end of the interlocking rod 14 is pivotally connected to the other first arm 17 via an interlocking member 20.
[0019]
One end of the first arm 19a is fixed to both ends of one rotating shaft 16a, and the middle part of the second arm 19b is fixed to both ends of the other rotating shaft 16b. . The other ends of the first and second arms 19a and 19b are rotatably mounted on a mounting portion 7 formed on the first connecting member 4 by pins (not shown).
[0020]
According to the vertical drive mechanism 11 having the above configuration, when the drive source 12 is operated and the drive shaft 13 is driven in the projecting direction, the interlocking rod 14 moves in the direction indicated by the arrow in FIG. The rotating shafts 16a and 16b rotate clockwise as indicated by arrows in FIG. When the rotating shafts 16a and 16b rotate, the second arms 19a and 19b are linked to the rotation.
[0021]
Above the base frame 1, an up-down frame 31 as a bed frame driven up and down by the up-down driving mechanism 11 is arranged. The upper and lower frames 31, like the base frame 1, have two long rods 32 and short rods 33 arranged in a rectangular frame shape, and their adjacent ends are connected to a second connecting member 34. Are formed by being connected with each other.
[0022]
The second connecting member 34 protrudes from both sides of the upper and lower frames 31 in the width direction, and the protruding ends of the second connecting member 34 have lower ends of a headboard fence 37 and a footboard fence 38 shown in FIG. A holding hole 39 into which the portion is inserted and held is formed. That is, the board fences 37 and 38 are held in the holding holes 39 of the pair of second connecting members 34 provided on both sides in the width direction of the upper and lower frames 31.
[0023]
As shown in FIG. 1, third brackets 41 are vertically provided on inner surfaces of both ends of the long rod 32 of the upper and lower frames 31 in the longitudinal direction. One end of one rotating shaft 16a is rotatably supported by a pair of third brackets 41 provided at one longitudinal end of the upper and lower frames 31 by pins (not shown), and a pair of third brackets at the other longitudinal end is provided. The other end of the rotating shaft 16b is rotatably supported by a bracket (not shown).
[0024]
The upper and lower frames 31 are provided with a drive mechanism 51 for raising the back and legs. As shown in FIG. 2, the drive mechanism 51 has a pair of support members 54 connected in parallel at a predetermined interval by a strip-shaped first connection member 52 and a second connection member 53. The support member 54 has a strip shape, and a first rotation shaft 55 is rotatably supported at one end in the longitudinal direction, and a second rotation shaft 56 is rotatably supported at the other end. .
[0025]
At both ends of the first rotation shaft 55, base ends of a pair of back raising arms 57 are rotatably supported. A pair of guide rollers 58 are rotatably provided at predetermined intervals on one side surface of the pair of back raising arms 57 opposite to the front end portions.
[0026]
One end of an interlocking member 59 is fixed to the first rotating shaft 55 inward in the axial direction from the pair of back raising arms 57. On one side surface of the other end portion of the interlocking member 59, an engagement pin 61 that engages with the lower surface of the base end portion of the back-raising arm 57 protrudes.
[0027]
Base ends of leg raising arms 62 shorter than the back raising arms 57 are fixed to both ends of the second rotation shaft 56. An operation roller 63 is rotatably provided at the tip of the leg raising arm 62.
[0028]
A drive source 64 is pivotally mounted on the lower surface of the second connecting member 53 at a middle part in the longitudinal direction. The drive source 64 has a drive shaft 65 that is driven forward and backward. The tip of the drive shaft 65 is pivotally connected to the other end of a bracket 66 having one end fixed to an axial middle portion of the first rotation shaft 55. ing.
[0029]
One end of a rod-shaped transmission member 67 is pivotally attached to one end of the first rotary shaft 55 in the axial direction via a bracket (not shown). The other end of the transmission member 67 is pivotally connected to the other end of a bracket 68 having one end fixed to one end of the second rotation shaft 56.
[0030]
When the drive source 64 is actuated and the drive shaft 65 is driven in the protruding direction, the first rotation shaft 55 rotates counterclockwise via the bracket 66 as shown by the arrow in FIG. Since the interlocking member 59 is interlocked with the rotation of the first rotation shaft 55, the back-raising arm 57 rotates in the rising direction via the engagement pin 61 provided on the interlocking member 59.
[0031]
When the first rotation shaft 55 rotates counterclockwise, the transmission member 67 having one end pivotally connected to the first rotation shaft 55 moves in the direction indicated by the arrow in FIG. Thereby, the second rotation shaft 56 to which the other end of the transmission member 67 is pivotally rotated in the clockwise direction indicated by the arrow, so that the leg raising arm 62 provided on the second rotation shaft 56 is raised. To rotate.
[0032]
Then, the drive mechanism 51 detachably engages the engaging members 69 provided on both ends in the longitudinal direction of the outer surfaces of the pair of support members 54 with the receiving members 70 provided on the inner surfaces on both sides of the upper and lower frames 31. Is held.
[0033]
A floor plate 71 is provided on the upper surface of the upper and lower frames 31. This floor plate 71 is divided into five floors. That is, the floor plate 71 has the fixed floor portion 72 fixed to the upper and lower frames 31. A waist-raising floor 73 and a back-raising floor 74 are sequentially rotatably connected to one end of the fixed floor 72. A first leg raising floor 75 and a second leg raising floor 76 are sequentially rotatably connected to the other end of the fixed floor 72.
[0034]
Both ends of a holding member 77 obtained by bending a bar in a substantially U-shape are rotatably supported at portions of the upper and lower frames 31 corresponding to the second raised leg portions 76. An intermediate portion of the holding member 77 is rotatably connected to the lower surface of the second leg raising floor portion 76. As a result, the first leg-raising floor 75 is raised as described later, and when the second leg-raising floor 76 interlocks with the rising of the first leg-raising floor 75, the second The leg raising floor portion 76 is held by the holding member 77 in an elevated state.
[0035]
Guide rails 78 (shown by chain lines in FIG. 2) having a U-shaped cross section are provided along the longitudinal direction at both ends in the width direction of the lower surface of the back raising floor 74. A pair of guide rollers 58 provided at the distal end of the back raising arm 57 are rotatably engaged with the guide rails 78. Therefore, when the back raising arm 57 is driven in the raising direction, the back raising arm 57 raises the back raising floor 74.
[0036]
In a state where the back-raising floor 74 is lying down substantially horizontally, the back-raising arm 57 is held substantially horizontally by the back-raising floor 74 via the guide roller 58 engaged with the guide rail 78. In this state, the interlocking member 59 is at a position rotated slightly below the back raising arm 57, and the engaging pin 61 provided on the interlocking member 59 is separated from the lower surface of the back raising arm 57. The position of the engagement pin 61 at this time is indicated by X1 in FIG.
[0037]
The operating roller 63 provided at the tip of the leg raising arm 62 is in contact with a cam body 81 provided on the lower surface of the first leg raising floor 75 as shown in FIG. The cam body 81 has a mountain shape, and the operating roller 63 is located at the bottom dead center of the cam body 81 when the second leg raising floor 75 is lying down substantially horizontally. The position of the operation roller 63 at this time is indicated by Y1 in FIG.
[0038]
Next, the operation of the wake-up type bed apparatus having the above configuration will be described with reference to FIGS.
[0039]
FIG. 5A shows a state in which the back-raising floor 74 and the first and second leg-raising floors 75 and 76 of the floor plate 71 lie down substantially horizontally. In this state, the engagement pin 61 for interlocking the back raising arm 57 with the rotation of the first rotation shaft 55 is located at the position X1 in FIG. 3A, and the first and second leg floors 75, 75 are moved. The operating roller 63 to be raised is located at the bottom dead center of the cam body 81 indicated by Y1 in FIG.
[0040]
When the drive source 64 of the drive mechanism 51 is operated to drive the drive shaft 65 in the protruding direction, the first rotation shaft 55 rotates, and the second rotation shaft 56 interlocks with this rotation via the transmission member 67. When the first rotation shaft 55 rotates, the interlocking member 59 interlocks with the rotation. The engagement pin 61 provided on the interlocking member 59 is separated from the lower surface of the back raising arm 57. Therefore, the back raising arm 57 is not driven in the raising direction until the engagement pin 61 is raised to the position X2 in FIG.
[0041]
Until the engagement pin 61 is displaced from the position X1 to the position X2, the second rotation shaft 56 is interlocked with the rotation of the first rotation shaft 55, so that the operation roller 63 of the leg lifting arm 62 is moved. The cam body 81 moves from the position indicated by Y1 in FIG. 3B to the position indicated by Y2. The position of Y2 is before the top dead center of the cam body 81.
[0042]
Therefore, since the cam body 81 is pushed up via the operation roller 63, the first leg raising floor 75 provided with the cam body 81 is raised as shown in FIGS. 4 (a) and 5 (b). Since the second leg-raising floor portion 76 is interlocked with this, the leg-raising floor portions 75 and 76 rise in a substantially U-shape.
[0043]
In this state, if the drive source 64 of the drive mechanism 51 is stopped, the back-raising floor 74 falls down substantially horizontally, and the first and second leg-raising floors 75 are raised in a V-shape. Bed equipment can be used.
[0044]
When the first rotation shaft 55 further rotates and the engagement pin 61 moves up from the position X2 to the position X3, the back-up arm 57 is rotated by the engagement pin 61 in the rising direction. When the back-raising arm 57 rises, the back-raising floor 74 is raised via a guide roller 58 provided at the end of the back-raising arm 57 as shown in FIGS. 4B and 5C. Let me do.
[0045]
At the same time, the operating roller 63 reaches the top dead center of the cam body 81 indicated by Y3 in FIG. 3B, so that the elevation of the first leg-raising floor 75 becomes maximum, and the second leg-raising floor 75 76 rises in conjunction with it, and is held by the holding member 77 in an elevated state.
[0046]
Accordingly, when the user's upper body is raised by the back-raising floor 74, the legs are lifted by the first and second leg-raising floors 75 and 76, so that the buttocks of the user shift forward when raising the back. Movement is prevented.
[0047]
When the drive source 64 of the drive mechanism 51 is stopped in this state, the back raising floor 74 rises at an angle smaller than the maximum raising angle, and the first and second leg raising floors 75 rise to the maximum. The bed device can be used in the up state.
[0048]
When the second rotation shaft 55 is further rotated to raise the engagement pin 61 from the position X3 to the position X4 in FIG. 3A, the back-raised floor portion 74 passes through the state shown in FIG. 5D. As shown in FIG. 5 (e) and FIG. 4 (c), it rises at the maximum angle.
[0049]
On the other hand, the operation roller 63 shifts from the top dead center indicated by Y3 of the cam body 81 to the bottom dead center indicated by Y4. As a result, the first and second leg-raising floor portions 75 and 76 descend from the maximum ascending position shown in FIG. 5C as shown in FIG. 5D, and further descend as shown in FIGS. As shown in (c), it falls down substantially horizontally.
[0050]
That is, while raising the back-raised floor 74 from the lying state to the maximum angle, the first and second leg-raised floors 75 and 76 rise from the horizontal state to the maximum raised position, and then return to the horizontal state. Return.
[0051]
Therefore, when the upper body of the user is raised in the state of FIG. 5C and then further raised in the state of FIG. 5D, the first and second leg-raising floors 75 and 76 are moved from the maximum raised position. Since it descends, the pressure state of the user's abdomen is gradually removed.
[0052]
When the upper body of the user is raised up to the maximum, the first and second leg floors 75 and 76 lie down substantially horizontally, and the user's leg raised by these leg floors 75 and 76 is raised. Is lowered, and the user can hardly press the abdomen, so that the posture in which the upper body is raised can be easily maintained.
[0053]
Since the floor plate 71 is divided into five floor portions, the waist-raising floor portion 73 is interlocked with the back-raising floor portion 74 when the floor-raising floor portion 74 is raised. Therefore, when a user's load is applied to the upper end of the back-raising floor 74 in a state where the back-raising floor 74 is raised at the maximum angle, the back-raising floor 74 rotates the waist-raising floor 73 while rotating. There is a risk of turning backward.
[0054]
However, a pair of guide rollers 58 is provided on the back raising arm 57, and the guide rollers 58 are engaged with guide rails 78 provided on the lower surface of the back raising floor 74. Therefore, the back-raising floor 74 is supported at two points vertically separated by a predetermined distance by a pair of guide rollers 58 provided on the back-raising arm 57. , The back raising floor portion 74 is prevented from rotating backward.
[0055]
That is, in the wake-up type bed device having a structure in which the floor plate body 71 is divided into five and the raised back-raised floor portion 74 is prevented from falling backward, the interlocking mechanism having the first rotation shaft 55 with the engagement pin 61 is provided. Since the member 59 is provided, the back lifting arm 57 can be raised by the interlocking member 59 with a delay relative to the lifting of the leg lifting arm 62.
[0056]
6 and 7 show another embodiment of the present invention. In this embodiment, a floor plate 71A is divided into four sections: a fixed floor section 72, a back-raised floor section 74, a first leg-raised floor section 75, and a second leg-raised floor section 76.
[0057]
The drive mechanism 51 is the same in that the rotation of the first rotation shaft 55 is interlocked with the second rotation shaft 56 via the transmission member 67. Further, the operating roller 63 provided at the tip of the leg raising arm 62 is brought into contact with the cam body 81A provided on the lower surface of the first leg raising floor 75, thereby interlocking with the rising of the back raising floor 74. This is the same in that the rising of the first and second leg floor portions 75 and 76 is changed according to the shape of the cam body 81A.
[0058]
However, in a state in which the back-raising floor 74 is lying down substantially horizontally, the roller 58A provided at the tip of the back-raising arm 57A moves a predetermined angle with respect to the slope of the inclined member 84 provided on the lower surface of the back-raising floor 74. They differ in that they are spaced apart. That is, by bending the back-raising arm 57A in an arc shape, the roller 58A provided at the distal end of the back-raising arm 57A can be separated from the slope of the inclined member 84 in a state where the back-raising floor 74 is lying down. it can.
[0059]
According to such a configuration, as shown in FIG. 6, when the drive mechanism 51 is operated in a state where the floor plate 71 </ b> A is horizontally laid down, the second rotation shaft 56 is rotated by the rotation of the first rotation shaft 55. They are linked via the transmission member 67.
[0060]
However, until the roller 58A provided on the back raising arm 57A hits the slope of the inclined member 84, the first and second leg raising floors 75 and 76 rise, but the back raising floor 74 does not rise. Does not get up. When the roller 58A hits the inclined surface of the inclined member 84, the raised floor 74 rises as shown in FIG.
[0061]
Therefore, even with such a configuration, the back-raising floor 74 can be interlocked with the rising of the first and second leg-raising floors 75 and 76 in a delayed manner, similarly to the above-described embodiment. Alternatively, when the back-raised floor 74 rises at the maximum angle, the first and second leg-raised floors 75 and 76 can fall down substantially horizontally by the shape of the cam body 81A.
[0062]
In this embodiment, instead of bending the back raising arm 57A, the mounting angle of the back raising arm 57A with respect to the first rotation shaft 55 is adjusted so that the raising of the back raising floor 74 can be performed by the first raising shaft 57. , The second leg raising floor portions 75 and 76 may be delayed.
[0063]
【The invention's effect】
As described above, according to the present invention, when the drive mechanism raises the back-raised floor and the leg-raised floor, the leg-raised floor is raised before the back-raised floor. For this reason, it is possible to use the floorboard body in a state where only the raised floor portion is raised.
[0064]
Also, when the back-raised floor is raised at a predetermined angle, the leg-raised floor can be laid down almost horizontally. Therefore, the user can lower the legs when raising the upper body, and can maintain the posture in which the upper body is raised without the abdomen being compressed.
[Brief description of the drawings]
FIG. 1 is an exploded perspective view of a wake-up type bed apparatus according to an embodiment of the present invention.
FIG. 2 is a perspective view of a drive mechanism for raising the back and raising the legs.
3A is a diagram for explaining a relationship between an engaging pin provided on an interlocking member and a back-raising arm, and FIG. 3B is a diagram for explaining a positional relationship between a cam body and an operation roller.
FIG. 4 is an explanatory diagram sequentially showing the operations of a back-raising floor and first and second leg-raising floors.
FIG. 5 is a schematic diagram sequentially showing the operations of a back-raising floor and first and second leg-raising floors.
FIG. 6 is a side view of another embodiment of the present invention, in which a floor plate is horizontally laid down.
FIG. 7 is a side view of the floor plate shown in FIG. 6 in which a back-raising floor portion and a leg-raising floor portion are raised.
[Explanation of symbols]
31 ... Upper and lower frame (bed frame)
Reference numeral 51: drive mechanism 55: first rotating shaft 56: second rotating shaft 57: back raising arm 59: interlocking member 62 ... leg raising arm 63 ... operating roller 64 ... drive source 67 ... transmitting member 71 ... floor plate 72 ... Fixed floor portion 74 Back raising floor portion 75 First leg raising floor portion 76 Second leg raising floor portion 81 Cam body

Claims (4)

In the wake-up bed device that can raise the user's upper body,
A bed frame,
A fixed floor portion fixed to the bed frame, a floor plate having a raised floor portion rotatably connected to one end of the fixed floor portion and a leg raised floor portion rotatably connected to the other end;
A back-raising arm for raising and lowering the floor portion of the floor plate body,
A leg raising arm provided with an operating roller at the tip for raising and lowering the floor raising floor portion of the floor plate body,
The back-raising arm and the leg-raising arm are driven up and down to link the back-raising floor and the leg-raising floor, and when each arm is driven in the raising direction, the back-raising floor is moved from the leg-raising floor to the lower side. A drive mechanism that delays
The leg raising floor is provided on the lower surface of the leg raising floor so that the operating roller is in rolling contact with the leg raising floor, and the driving mechanism raises the leg raising floor prior to the back raising floor. A cam body for causing the leg-raising floor to fall down substantially horizontally when raised to
A wake-up type bed device comprising: The drive mechanism is
A first rotation shaft on which a base end of the back-raising arm is rotatably supported;
A second rotating shaft to which a base end of the leg raising arm is fixed;
A drive source for rotating the first rotation shaft,
A transmission member for transmitting rotation of the first rotation shaft to the second rotation shaft;
An interlocking member that is provided on the first rotation shaft and that moves the back-lifting arm behind the leg-lifting arm to interlock in a rising direction when the first rotation shaft is rotationally driven by the driving source;
The wake-up type bed device according to claim 1, further comprising: A pair of rollers are provided at a predetermined interval at the tip of the back-raising arm, and a guide rail with which the rollers are engaged is provided on the lower surface of the back-raising floor, and the guide rail is engaged with the rollers. 3. The wake-up type bed apparatus according to claim 2, wherein the back-raising arm is held substantially horizontally until the back-up arm is driven in the rising direction by the interlocking member. In a state in which the back-raising floor and the leg-raising floor lie substantially horizontally, the tip of the back-raising arm is separated from the lower surface of the back-raising floor, and the operating roller of the leg-raising arm is 2. The wake-up type bed apparatus according to claim 1, wherein the bed apparatus is in contact with the cam body.

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