JPH11151268A - Bed - Google Patents

Abstract

PROBLEM TO BE SOLVED: To recline a bed while maintaining the horizontal position of a head part. SOLUTION: To a fixed frame 12, a movable frame 20 to which a reclining plate 22 is turnably supported is freely slidably attached. Also, to the movable frame 20, a reclining arm 38 is turnably arranged and one end of a position holding arm 38 whose the other end is rotatably connected to the fixed frame 12 is rotatably connected. When the reclining arm 38 is turned and the reclining plate 22 is pushed up from the lower part and erected, the reclining arm 38 is erected in the form of being pulled by a position holding arm 40 rotatably connected to the fixed frame 12. Linked with the erecting operation, since the movable frame 20 is slid to the side of the position holding arm 40, the free end part of the reclining plate 22 is moved in the vertical direction without drawing the track of a circular arc.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bed which can be used by a healthy person or can be used for caring for a sick person or a sick person.

[0002]

2. Description of the Related Art As shown in FIGS. 13 and 14, some beds 150 are provided with reclining means for raising and lowering a back plate 154 supporting the back of a mattress 152 in order to assist a person to get up. .

However, as shown in FIG. 14, as the back plate 154 stands, the head H1 of the person H
It moves away from the headboard 158. Therefore, objects on the side table 156 placed beside the bed 150 are difficult to obtain.

On the other hand, as shown in FIG.
There is a bed 160 provided with a stretching means 164 for elevating and lowering the body 62 to stretch the body. Since the mounting position of the stretching means 164 is determined according to the physique, once the stretching means 164 is set,
Unless you remove the mattress 162 etc. and change the position,
I can't move.

[0005]

SUMMARY OF THE INVENTION In view of the above facts, the present invention provides a bed capable of reclining the back plate and moving the stretching means to an arbitrary position while maintaining the horizontal position of the head. The task is to provide.

[0006]

According to the first aspect of the present invention, the movable frame is provided on the fixed frame set on the floor.
The movable frame slides in the longitudinal direction of the fixed frame. A reclining member is rotatably supported by the movable frame.

A reclining arm is rotatably arranged on the movable frame. One end of a position holding arm whose other end is rotatably connected to the fixed frame is rotatably connected to the reclining arm.

Here, when the reclining arm is rotated and the reclining member is pushed up from below, the reclining member stands up and raises the human back. At this time, the reclining arm stands up as if pulled by a position holding arm rotatably connected to the fixed frame. Therefore, in conjunction with the erecting operation, the movable frame that supports the reclining arm slides along the fixed frame toward the position holding arm.

As a result, the free end of the reclining member moves in the vertical direction while ascending without drawing a locus of an arc. For this reason, the human head supported by the reclining member moves in the vertical direction.

Therefore, since the positional relationship between the side table and the head does not change, it is possible to take an object on the side table without shifting the body.

According to the second aspect of the present invention, the stretch frame is slidably attached to the fixed frame. The stretching frame is provided with stretching means, and by sliding the stretching frame, stretching of a desired part (thigh, waist, etc.) becomes possible.

Here, a slide mechanism of the stretch frame will be described. A rack is formed on the stretch frame and meshes with a drive gear attached to the reclining arm. By rotating this drive gear, the stretch frame slides along the fixed frame.

In the stretch frame, a fan-shaped gear that meshes with the drive gear when the reclining arm rotates is formed continuously with the rack. When the drive gear and the rack mesh with each other, the groove provided on the stretch frame and the stopper provided on the reclining arm are engaged, and the stretch frame and the movable frame slide together.

Therefore, for example, even if the reclining member is erected while the stretching means is lifting the leg, the positional relationship between the waist and the leg does not change.
No strange stress when reclining.

According to the third aspect of the present invention, a plurality of mat plates are laid on the movable frame in the longitudinal direction, and the mattress is supported horizontally. This mat plate is connected with a play with a connecting member,
It can be partially raised.

Therefore, when the mat plate is pushed up from below by the stretching means, the mat plate partially rises while being connected, and the body is partially lifted up through the mattress to perform a stretching exercise. When the stretching means is moved together with the stretching frame, the raised portion moves like a wave and massages the whole body.

According to the fourth aspect of the present invention, the stretching means is liftably pivotally supported on the stretch frame, the driving means is swingably mounted on the stretch frame and performs piston movement, and the driving means. And the lift means are connected, and linked with the piston movement of the drive means,
And a link mechanism for raising and lowering the lift means.

In such a configuration, when the driving means attached to the stretch frame so as to be able to swing is made to perform a piston movement, the link mechanism causes the lift means pivotally supported on the stretch frame to be raised and lowered, and Lift up and down the mat plate. As described above, the simple construction of the stretching means facilitates assembly and maintenance.

[0019]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As shown in FIGS. 1, 2, 7, and 8, a bed 10 according to the present embodiment includes a rectangular fixed frame 12 supported on a floor surface by legs 14. I have.
For convenience of description, the head side refers to the side of the bed 10 where the human head is located, and the leg side refers to the side where the human legs are located.

A rail 16 extends along the length of the fixed frame 12, and a wheel 18 is arranged on the rail 16 so as to be able to run. Wheel 18
Are supported by a support plate 19 that supports a frame-shaped movable frame 20. Thereby, the movable frame 20 can slide in the longitudinal direction of the fixed frame 12 (from the head to the leg of the body).

A reclining plate 22 is rotatably supported on the movable frame 20 by pins 24. A mat plate 26 is disposed on the reclining plate 22, and two mat plates from the head side are fixed to the reclining plate 22, and the other mat plate 2
Numeral 6 is mounted on the reclining plate 22, and both ends are connected with play with caps to be described later.

On the other hand, a base plate 28 is stretched over the movable frame 20. This base plate 28
Is used as a base to constitute a support frame 30. A motor 32 as a driving unit is mounted on the base plate 28, and a gear box 34 as a speed reducer to which the rotational force of the motor 32 is transmitted is mounted on the support frame 30.

From the gear box 34, the support frame 3
The drive shaft 36 whose middle part is supported by the bed 10
Extending in the width direction. At the end of the drive shaft 36,
Reclining arm 3 extending in the longitudinal direction of bed 10
8 is fixed at the base end. Thereby, the motor 3
2 is driven, and the drive shaft 36 is rotated via the gear box 34, whereby the reclining arm 38 is rotated around the drive shaft 36 and undulates.

A position holding arm 40 is rotatably connected to a free end of the reclining arm 38 by a pin 42. The other end of the position holding arm 40 is rotatably connected to a column 44, and the column 44 is raised from a girder plate 46 bridged over the fixed frame 12 on the head side. In addition, the position holding arm 40 is
Are connected by two reinforcing members 48 extending in the width direction, and required rigidity is maintained.

When the reclining arm 38 starts to move up and down, the position holding arm 40 moves the drive shaft 36.
To the girder plate 46 side (head side) or pull it apart. As described above, the movable frame 20 slides in the longitudinal direction of the fixed frame 12 with a certain correlation in conjunction with the up-and-down movement of the reclining arm 38. That is, the position holding arm 40 has a role of converting the undulating operation of the reclining arm 38 into the sliding operation of the movable frame 20.

The pin 42 connecting the reclining arm 38 and the position holding arm 40 is provided with a roller 50. The roller 50 is located inside a channel-shaped reclining rail 52 fixed to the back surface of the mat plate 26 of the reclining plate 22.

For this reason, when the reclining arm 38 rotates and stands up, the roller 50 pushes up the reclining rail 52 from below and reclines the reclining plate 22 together with the mat plate 26.

Further, since the reclining arm 38 and the position holding arm 40 are not connected to the reclining plate 22, only the reclining plate 22 can be manually moved in any operation state. Thus, even if an object is sandwiched between the headboard 100 and the mat plate 26 fixed to the reclining plate 22, it can be quickly removed.

On the other hand, a rail 54 extends in the fixed frame 12 along the longitudinal direction, and a wheel 56 is arranged on the rail 54 so as to be able to run. The wheel 56 is pivotally supported by a support plate 59 hanging downward from a frame-shaped moving frame 58. Thereby, the moving frame 58 can slide in the longitudinal direction of the fixed frame 12 (from the head to the leg of the body).

A support bar 60 is stretched over a support plate 59 hanging from the moving frame 58. An actuator 64 is attached to a support column 61 erected from the support bar 60 by a pin 62 so as to swing up and down. Rod 66 of actuator 64 which moves with piston
A link member 70 is rotatably connected to a tip end of the link member with a pin 68.

The other end of the link member 70 is connected to the bed 10
Is fixed to an interlocking shaft 72 extending in the width direction of the second shaft. The end of the interlocking shaft 72 is
The lift arm 76 is fixed to an end (one end supporting the pin 74) of a lift arm 76 pivotally supported by a support plate 73 erected from the position 8 via a pin 74. A massage roller 78 is rotatably attached to an end of the lift arm 76.

With this configuration, when the rod 66 of the actuator 64 starts the piston movement, the lift arm 76
The interlocking shaft 72 fixed to the end of the link member 70
And lifts the lift arm 76 around the pin 74 as shown in FIG. Thus, the roller 78 of the lift arm 76 lifts and lowers (raises) the mat plate 26 placed on the movable frame 20, thereby exhibiting a stretching function.

A guide plate 80 is arranged on the moving frame 58 along the longitudinal direction of the bed 10. A rack 82 is formed on the lower side of the guide plate 80 from the leg side to the head side. This rack 82
Is engaged with a drive gear 86 which is supported below a support plate 84 formed on the base end side of the reclining arm 38. The torque of the motor 32 is transmitted to the drive gear 86 via a gear 88 fixed to the drive shaft 36 and a gear group 90 meshing with the gear 88. Then, when the drive gear 86 is rotated, the moving frame 58 slides along the fixed frame 12 by meshing with the rack 82.

On the head side of the rack 82, as shown in FIGS. 3 and 4, an upward fan-shaped gear 92 is formed continuously with the rack 82. Further, the guide plate 80
The upper side (in the vicinity of the fan-shaped gear 92) is provided with a groove 94 formed in an arc shape.

When the moving frame 58 moves to the head side and the drive gear 86 meshes with the sector gear 92, the groove 94 is provided with a stopper pin 96 projecting from the end of the drive shaft 36 and the support plate 84. It is located below. When the reclining arm 38 is not upright (in a horizontal state), the drive shaft 36
And the stopper pin 96 are located above the guide plate 80 so as not to hinder the sliding operation of the moving frame 58.

On the other hand, as shown in FIGS. 2 and 8, on the reclining plate 22 and the movable frame 20,
In order to improve the strength, a plurality of mat plates 26 whose both ends in the width direction are curved in a circular shape (see FIG. 5) are laid and arranged, and a mattress 98 can be placed on the mat plates 26. ing.

Then, the two mat plates 2 on the head side
Numeral 6 is fixed to the reclining plate 22, and the mat plate 26 mounted on the movable frame 20 so as to be raised is connected to the fixed mat plate 26. Also, the five mat plates 26 on the tip end side of the leg are
It is supported by a foot plate 102 rotatably attached to the movable frame 20. A spring (not shown) is provided on the shaft 101 of the foot plate 102, and urges the foot plate 102 toward the tip of the leg.

Further, as shown in FIGS. 5 and 6, caps 108 as connecting members are mounted on both ends of the mat plate 26 placed on the movable frame 20. The cap 108 is provided with hinge portions 108A and 108B protruding in the longitudinal direction of the bed 10. A connecting pin 110 is provided on the hinge 108B, and is engaged with the hinge 108A of the adjacent cap 108. An elongated hole 107 extending in the longitudinal direction of the bed 10 is formed in the hinge 108A.

For this reason, a play is formed at the connecting portion of the cap 108 connecting the mat plate 26, and when the roller is lifted by the roller 78 provided at the end of the lift arm 76, as shown in FIG. The mat plate 26 is partially raised in a manner to absorb it.

The leg side of the mat plate 26 connected by the cap 108 is connected to the mat plate 26 supported by the foot plate 102. For this reason, when the reclining arm 38 and the lift arm 76 are made horizontal, tension is applied to pull the mat plate 26 toward the legs, so that the mat plate 26 can be placed at an equal interval to be in a horizontal state.

Next, the operation of the bed 10 according to this embodiment will be described. As shown in FIG. 8, when the mattress 98 is in a horizontal state, the reclining plate 22, the reclining arm 38, and the lift arm 76 are lying down. At this time, since the end of the drive shaft 36 and the stopper pin 96 are located above the guide plate 80, the controller (not shown) is operated to operate the motor 32.
Is driven, the drive gear 86 meshing with the rack 82 rotates, and the moving frame 58 moves toward the head as shown in FIGS.

In this embodiment, the motor 32 is controlled by a timer, and the moving frame 58 reciprocates between the head and the leg over a certain period of time.
If the lift arm 76 is raised, the mat plate 26
It can move like a wave and massage the whole body. Further, by operating the controller to stop the moving frame 58 at an arbitrary part (back, waist, etc.), and by controlling the actuator 64 with a timer to raise and lower the lift arm 76, the stretching movement of the part can be performed.

The mechanism for reclining or lifting the mat plate 26 is not fixed to the mat plate 26 but can be retracted below the movable frame 20. Basically, the mat plate 26 Is to be supported. For this reason,
The leveling of the mattress 98 can be easily performed without accurately controlling the motor 32 and the actuator 64 as the driving means (see FIG. 8).

Next, when raising the back of the human H, the controller is operated to raise the reclining arm 38. As a result, the roller 50 provided at the connecting portion between the reclining arm 38 and the position holding arm 40
Pushes up the reclining rail 52 from below.
Therefore, as shown in FIGS. 9 and 10, the reclining plate 22 that moves integrally with the reclining rail 52 turns around the pin 24 provided on the movable frame 20 and stands upright.

When the reclining arm 38 starts the erecting operation, the position holding arm 40 moves the drive shaft 3.
6 together with the movable frame 20 is attracted to the headboard 100 side. Therefore, the head side of the mattress 98 placed on the mat plate 26 rises in the vertical direction without drawing a locus of an arc. As a result, the horizontal positional relationship between the head of the human H who has turned his back on the mattress 98 and the sideboard 110 does not change.
An object on the sideboard 110 can be taken.

Further, when the drive gear 86 and the rack 92 mesh with each other and the reclining arm 38 starts a standing motion, the end of the drive shaft 36 and the stopper pin 96 are moved.
It enters the groove 94 of the guide plate 80. by this,
When the reclining arm 38 falls down, the stopper pin 96 pushes out the groove wall of the groove 94, and when the reclining arm 38 stands, the end of the drive shaft 36 pulls the groove wall of the groove 94, and The moving frame 58 is moved integrally.

As described above, by moving the movable frame 20 and the moving frame 58 integrally, the lift arm 76 is erected, and the mat plate 26 is raised and reclined. Since the positional relationship does not change, it does not give strange stress to the body.

In this embodiment, since the lift mechanism is provided, it is necessary to move the movable frame 20 and the moving frame 58 integrally. However, any reclining mechanism that only moves the human head in the vertical direction is required. For example, if the reclining arm 38, the position holding arm 40, and the movable frame 20 are provided, the head side of the mattress can be raised in the vertical direction.

[0049]

According to the present invention, the human back can be reclined while maintaining the horizontal position of the head. In addition, any part can be stretched. Furthermore, when the legs are lifted during reclining, the positional relationship between the waist and the legs does not change, so that no strange stress is applied to the body.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a bed reclining mechanism according to the present embodiment.

FIG. 2 is a perspective view showing a bed lift mechanism according to the embodiment.

FIG. 3 is a front view showing a relationship between a fan gear and a drive gear of the bed according to the embodiment.

FIG. 4 is a side view showing a relationship between a fan gear and a drive gear of the bed according to the embodiment.

FIG. 5A is a side sectional view showing a mat plate and a cap constituting the bed according to the embodiment, and FIG. 5B is a plan sectional view showing the mat plate and the cap.

FIG. 6A is a side sectional view showing a mat plate and a cap constituting the bed according to the embodiment, and FIG. 6B is a plan sectional view showing the mat plate and the cap.

FIG. 7 is a plan view of the bed according to the embodiment.

FIG. 8 is a side view showing a state where the mattress of the bed according to the present embodiment is in a horizontal position.

FIG. 9 is a side view showing a reclining state of the bed according to the embodiment.

FIG. 10 is a side view showing a reclining state of the bed according to the embodiment.

FIG. 11 is a side view showing a state in which the leg of the bed according to the present embodiment is stretched in a state where the bed is in a horizontal position.

FIG. 12 is a side view showing a state where the waist is stretched in a state where the bed mat according to the present embodiment is in a horizontal position.

FIG. 13 is a side view showing a state where a mattress of a conventional bed is in a horizontal position.

FIG. 14 is a side view showing a reclining state of a conventional bed.

FIG. 15 is a side view showing a state where stretching is performed on a conventional bed.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 12 Fixed frame, 20 Movable frame 22 Reclining plate 26 Mat plate 36 Drive shaft (stopper) 38 Reclining arm 52 Position holding arm 58 Stretch frame 64 Actuator (Drive means) 70 Link material (Link mechanism) 72 Linking shaft (Link) Mechanism) 76 lift arm (lift means, stretch means) 82 rack 86 drive gear 92 sector gear 96 stopper pin (stopper) 108 cap (connecting member)

Claims (4)

[Claims] 1. A fixed frame, a movable frame slidably mounted on the fixed frame, a reclining member rotatably supported on the movable frame and capable of raising and lowering, and a movable frame. A reclining arm that is arranged and pivots to push the reclining member from below, a position holding arm rotatably connected at one end to the reclining arm, and rotatably connected at the other end to the fixed frame; A bed comprising: 2. A stretch frame slidably attached to the fixed frame, stretch means attached to the stretch frame, a rack formed on the stretch frame, and a rack attached to the reclining arm. A drive gear that meshes with the stretch frame, a fan gear that is formed continuously with the rack and meshes with the drive gear when the reclining arm rotates, and a drive gear that is provided on the reclining arm, The stopper according to claim 1, further comprising a stopper that engages with a groove provided in the stretch frame to slide the movable frame and the stretch frame together when the fan gear meshes with the fan frame. Bed. 3. A mat plate laid out and arranged in the longitudinal direction of the movable frame to horizontally support a mattress, and a connecting member that connects the mat plates with a play and allows the mat plate to be partially raised. The bed according to claim 1 or 2, wherein the bed is provided. 4. A lift means pivotally supported on the stretch frame so as to be able to move up and down, a drive means swingably mounted on the stretch frame and performing piston movement, the drive means and the lift. The bed according to claim 2 or 3, further comprising a link mechanism that connects the lifting means to the lifting means and connects the lifting means to the lifting means.