JP2003135538A - Handrail for bed, and bed with handrail - Google Patents

Abstract

PROBLEM TO BE SOLVED: To use a handrail as a chair or a load placing space by bringing the handrail down to be horizontal with a bed and to reduce a patient's burden when standing up from the bed. SOLUTION: The bed 1 is provided with the handrail 9, and the handrail 9 is mounted to the bed 1 so as to be rotatable around the edge of the bed 1 as the rotational center. A holder 13 is provided to hold the rotated handrail 9 in the upright or horizontal position. The handrail 9 is kept in the upright or horizontal state by the holder 13.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a handrail for a bed and a bed with a handrail.

[0002]

2. Description of the Related Art Conventionally, care beds have been provided with handrails to help patients wake up.

Conventional handrails have been of the parallel crank type, which is foldably attached to the side edge of the main surface of the bed.

The parallel crank type handrail, as is well known, forms a parallelogram by connecting two sets of opposed pipes with a pin joint, and when the patient is sleeping, this is erected so that the patient can stand up from the bed. It is designed so that it will not fall while it can be folded so that the patient can easily get in and out of the bed.

[0005]

When the patient gets up and tries to get up from the bed, the legs of the bed are high and the mattress is laid on the top of the bed. For me, it is not easy to get a foot on the floor.

Further, in a patient room accommodating a plurality of patients, the space allotted to each patient is limited,
In many cases, there is not enough space for everyone to sit around the care bed when there are multiple visitors.

In addition, there may be no place for passengers' luggage to be stored.

In addition, if you are hospitalized for a long time, your luggage will increase,
I have a hard time with the place.

The present invention has been made in view of the above circumstances, and a problem to be solved by the present invention is to raise the patient so that the patient does not fall from the bed when the patient sleeps, or the patient does not fall into the bed. When moving in and out of the bed, the handrails should be tilted so that they do not get in the way, and the patient should be able to stand up from the bed or reduce the burden on the patient when entering the bed. It aims to provide a technology that allows the handrail to be used as a chair or luggage storage area by making it horizontal.

[0010]

Therefore, the present invention employs the following means.

That is, according to the present invention, the edge of the bed is used as the center of rotation of the handrail, and the handrail is attached so as to be freely rotatable. Then, a holding tool for holding the rotated handrail at a predetermined position is provided. That is, there is provided a moving shaft that is parallel to the turning axis of the handrail and that moves outward on the axis that is not the same as the handrail. And if the moving shaft can be fixed to the bed in a state where the moving shaft is outside the handrail, the moving shaft is on the same axis line as the handrail rotating shaft,
Due to the positional relationship between the non-identical axis and the handrail rotation axis,
When the handrail is erected or drooped, that state can be maintained. In order to fix the moving shaft, it is preferable to provide a bearing on the side edge of the bed so as to fit with the moving shaft.

Further, the handrail is provided with a slide type handle for operating to maintain and release the holding state of the handrail by each of the holding means, and a force bar which rotates like a pendulum according to the movement of the handle. , The moving shaft is operated according to the rotation of the force rod.

The handrail is formed in a plate shape, and a fulcrum shaft for pivotally supporting the force rod is provided at a side surface corresponding portion of the handrail when the handrail is erected. Both sides are provided with action rods which are rotatable with respect to the force rods, and the movable shaft is rotatably attached to the action rods.

In order to hold the handrail in a horizontal state, the handrail is rotated in accordance with the movement of the moving shaft in the side-corresponding portion when the handrail is erected, and the handrail is in an upright state and lying down. Apply the rotating plate to the state. When the handrail is horizontal to the main surface of the bed, the rotating plate is erected in a hanging state on a portion corresponding to the side surface of the handrail, and the rotating plate contacts the side plate of the bed. Set to.
With this arrangement, even if the handrail rotates downward about its own hand pivoting axis due to its own weight, its movement can be suppressed at the side edge of the bed, so that the handrail maintains a horizontal state. It should be noted that the handrail being in a horizontal state is not strictly horizontal and includes a state in which the handrail is slightly inclined with respect to the horizontal plane. For example, if the inclination angle is slightly upward with respect to the horizontal, even if the patient sits down on the handrail in the horizontal state, it is difficult for the patient to slide down from the handrail.

Further, the rotating plate is provided with a rotating shaft extending vertically with respect to the side surface corresponding portion when the handrail is erected or suspended, and the rotating shaft is rotated about the rotating shaft. Rotate the plate. A pinion portion is formed on the rotating shaft for rotating the rotating shaft. In addition, a tooth groove that meshes with the pinion portion in a rack shape is provided on the moving shaft. Then, by engaging the tooth groove of the moving shaft with the pinion portion of the rotating shaft of the rotating plate, a meshing relationship of rack and pinion is established between both members.

Further, the moving shaft is connected to the action rod, the action rod is connected to the force rod, and the force rod is connected to the handle. Therefore, by sliding the handle, the force is transmitted in the order of handle-force bar-action bar-moving shaft-rack & pinion-rotating shaft, and finally the rotating plate having the rotating shaft operates the handle. To rotate.
Since the moving shaft moves along the axis in accordance with the slide of the handle, the pinion portion of the rotating shaft and the tooth groove of the moving shaft are caused by the deviating of the moving shaft from the axis. There is no disengagement.

Therefore, the rotating plate is turned so as to be in a recumbent state with respect to the side surface corresponding portion of the handrail at the position where the handrail is in the standing state and the hanging state, and is rotated at the position where the handrail is in the horizontal state. The dimensions, arrangement, setting conditions, etc. of each of the above-mentioned constituent members are adjusted so that the plate is erected in the downward direction with respect to the side-corresponding portion of the handrail.

Such handrails can be provided not only on the side edges of the bed but also on the short edges. Since the present invention adopts the above configuration, when the patient is sleeping, the handrail is erected to prevent the patient from falling from the bed, or the handrail is hung so that the patient can easily get in and out of the bed. Of course, when the patient moves in and out of the bed, the patient can move the handrail by sliding the handle to uncouple the moving shaft from the bearing and rotating the handrail to a horizontal position. It can be used as a place to rest once, in other words, as a step.

Therefore, since the patient can sit on the handrail once, the burden on the patient can be reduced.

If the handrail is horizontal, the handrail can be used as a chair or a luggage storage area.

[0021]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings.

In each figure, reference numeral 1 indicates a care bed.

The care bed 1 is surrounded on four sides by peripheral plates, that is, long side plates 3L, 3R and short side plates 3H, 3F, and a mattress (not shown) is placed on the upper surface 5. The upper surface 5 is bendable as shown in FIG. 2 for nursing care, and the mattress placed on the upper surface 5 is also bendable so as to match the upper surface 5. Since the upper surface 5 is a main part of the bed 1, it may be referred to as the main surface of the bed 1.

The bed handrail according to the present invention (hereinafter simply referred to as "handrail") is indicated by reference numeral 9, and the handrail 9 is
It is attached to the peripheral plates 3L, 3R, 3H and 3F.

The handrail 9 is attached to the peripheral plates 3L, 3R,
It is done along the longitudinal direction of 3H and 3F.

The handrail 9 is a trapezoidal hollow plate-like body, and the inside thereof houses a mechanism unique to the handrail 9 of the present embodiment. The mechanism will be described step by step.

As shown in FIGS. 3 to 10, the handrail 9 is attached to each of the peripheral plates 3L, 3R, 3H, 3F by a pair of hinges 11, 11.

That is, the swinging pieces 11a, 11 of the hinge 11
One side 11a of b is connected to each of the peripheral plates 3L, 3R, 3H, 3
The hinges 11, 11 are positioned on the same axis by being attached to appropriate points on the upper edge in the longitudinal direction of F. Then, the other swing piece 11b is screwed to the lower edge of the handrail 9. The same axis is referred to as a line of hinges 11 and 11, and is indicated by reference numeral 10 (see FIGS. 3 to 8 and 10).

In this embodiment, the peripheral plates 3L, 3R, 3
Of the H and 3F, two handrails 9 are arranged on the long side plates 3L and 3R, and one handrail 9 is arranged on the short side plates 3H and 3F.

When the handrail 9 is attached via the hinges 11 and 11, the hinges 11 and 11, in other words, the line 10 of the hinges 11 and 11, the hinges 11 and 11 are formed in pairs.
It functions as a virtual handrail rotation axis. That is, the handrail 9
Rotates along a track 12 with the line 10 as the center of rotation (see FIG. 10).

Further, the handrail 9 is provided with a holder 13 for holding the handrail 9 at a predetermined position in the track 12 of the handrail 9 (see FIGS. 13, 14, and 18). The predetermined position in the track means a position where the handrail 9 stands up and down and a position horizontal to the upper surface 5 which is the main surface of the bed 1. The states in which the handrail 9 is in the upright position, the drooping position and the horizontal position are shown by arrows (1), (2) and (3) in FIGS. 1, 5 and 10, respectively.

The holder 13 holds the handrail 9 in a vertical state holding means 15 for holding the handrail 9 in an upright state with respect to the bed upper surface 5.
And a horizontal state holding means 17 for holding the handrail 9 while keeping the handrail 9 horizontal with respect to the bed upper surface 5. Note that the handrail being in a horizontal state does not mean that it is strictly horizontal,
It also includes the state of being slightly inclined with respect to the horizontal plane.

The vertical state holding means 15 is provided on the peripheral plates 3L, 3R, 3H and 3F, and a pair of moving shafts 21 and 21 which move on a virtual axis 19 which is not the same as and parallel to the line 10, but is moved as described above. Bearings 2 fitted on the shafts 21 and 21, respectively
3, 23 are included in the constituent elements.

The movable shaft 21 and the bearing 23 are fitted to each other by a patient, a nurse or the like by sliding a handle 25 (hereinafter simply referred to as a "handle") provided on the upper edge of the handrail 9 in an upright position. To do.

The handle 25 is an operation portion which is slidably attached to the upper edge and which holds or releases the standing state and the horizontal state of the handrail 9 by operating the handle 25. As shown in FIGS. 11 to 18, the handle 25 has a force rod 28 that rotates like a pendulum in accordance with its movement, and the moving shafts 21 and 21 operate in accordance with the rotation of the force rod 28. .

Further, the handrail 9 has a fulcrum shaft 32 for rotatably supporting the force rod 28 therein. The fulcrum shaft 32 is planted inside the handrail 9 on the main surface 9a (specifically, the side surface corresponding portion when the handrail 9 is upright). The force rods 28 have action rods 34, 36 rotatable on the force rods 28 on both sides of the fulcrum shaft 32. And this action rod 3
The moving shafts 21 and 21 are rotatably attached to 4, 36.

Next, the horizontal state holding means 17 will be described.

The horizontal state holding means 17 is pivotally changed to the outside of the main surface 9a of the handrail 9 in accordance with the movement of the moving shafts 21 and 21, and the horizontal state holding means 17 is erected on the main surface 9a (see FIGS. 16) and a recumbent state (see FIGS. 3 to 7, FIG. 11, FIG. 17, and FIG. 18). When the handrail 9 is horizontal with respect to the main surface 5 of the bed 1, the rotating plates 38, 38 are erected in a hanging state on the main surface 9a of the handrail 9, and
38 abuts the peripheral plates 3L, 3R, 3H, 3F of the bed 1 at their respective edges 38a, 38a, thereby holding the handrail 9 in a horizontal state (see FIGS. 10, 12, and 15).

The rotating plates 38, 38 have a rotating shaft 40 so that the rotating plates 38, 38 can rotate. The rotating shaft 40 is a bar member provided inside the handrail 9 and extending in the vertical direction with respect to the main surface 9a of the handrail 9 when the handrail 9 stands or hangs down. Then, the rotating plate 38 is rotated around the rotating shaft 40 (see FIG. 13). Also, the rotating shaft 40
Has a pinion portion 42 in at least a part thereof (see FIGS. 11 to 18).

A plurality of tooth spaces 50 meshing with the pinion portion 42 are formed on the moving shafts 21 and 21 to form a rack-like form (FIGS. 11, 13 and 1).
5, see FIG. 16).

Next, the function and effect of the embodiment will be described.

In the present embodiment, the handrail 9 mounted on the bed 1 is hinged so that the handrail 9 can pivot about the peripheral plates 3L, 3R, 3H and 3F of the bed 1 as pivot centers.
1, 11 is provided with a holder 13 so that the rotated handrail 9 can be held at a predetermined position. The holder 13 positively maintains the handrail 9 at least in an upright state and a horizontal state with respect to the bed upper surface 5. Keep fixed at.

In order to fix the handrail 9 in the suspended state, the bearing (not shown) fitted to the moving shaft 21 when the handrail 9 is suspended is provided in the bed 1.
It may be provided on the outer surfaces of the peripheral plates 3L, 3R, 3H and 3F.

Further, the axis 19 of the moving shaft 21 and the alignment line 10 of the hinges 11 and 11 are parallel to each other, and the moving shaft 2
1 can be fixed to the bed 1 by the bearing 23, so the axis 1
The handrail 9 is in an upright state because of the positional relationship between the handrail 9 and the line 10. Further, since the moving shaft 21 is fitted into the bearing 23 at least in the standing state, the handrail 9 is prevented from rotating in the standing state and is stabilized. Therefore, it can be said that it is excellent in terms of safety.

Further, the handrail 9 has the above-mentioned holding means 1
The movable shaft 21 operates in response to the rotation of the slide type handle 25 for operating to maintain and release the holding state of the handrail 9 by 5 and 17 and the force rod 28 which rotates like a pendulum in accordance with the movement of the handle 25. To do.

The force rod 28 is rotatably supported by the fulcrum shaft 32, and the force rod 28 has rotatable action rods 34, 36 on both sides of the fulcrum shaft 32 as a center. 36
A movable shaft 21 is rotatably attached to the. Further, the moving shaft 21 moves along the axis 19 with respect to the handrail 9 in response to the slide operation of the handle 25, and then appears.

Further, in order to hold the handrail 9 in a horizontal state, the main surface 9a of the handrail 9 is pivotally changed in response to the movement of the moving shaft 21 and is in a state of being planted on the main surface 9a. Moving board 3
8 is applied, and when the handrail 9 is horizontal with respect to the main surface 5 of the bed 1, the handle 25 is slid so that the rotating plate 38 is hung in the main surface 9a of the handrail 9 in a hanging state. The moving plate 38 has its one edge 38a at the peripheral plates 3L, 3 of the bed 1.
Contact R, 3H, 3F. Therefore, under such a situation, even if the handrail 9 rotates downward about its hinges 11 and 11 due to its own weight, the movement of the handrail 9 is limited to the peripheral plates 3L and 3R.
The handrail 9 is kept horizontal by being restrained by 3H and 3F.

Further, the rotating plate 38 has a rotating shaft 40 having a pinion portion 42, and the pinion portion 42 meshes with a plurality of tooth spaces 50 formed on the moving shaft 21 in a rack-and-pinion manner. 21 is the action rod 34, and the action rod 34 is the force rod 2
8 and the force rod 28 are connected to the handle 25,
By sliding the handle 25, the handle 25-force bar 28-
The force is transmitted in the order of the action rod 34-the moving shaft 21-the rack and pinion mechanism including the pinion portion 42 and the tooth groove 50-the rotating shaft 40, and finally the rotating plate 38 having the rotating shaft 40 is gripped. It rotates by the operation of 25 (see FIGS. 11 to 18).

Further, at a position where the handrail 9 is in an upright state or a hanging state, the rotating plate 38 is in a recumbent state with respect to the main surface 9a of the handrail 9, and at a position where the handrail 9 is in a horizontal state. Since the above-mentioned components are set and adjusted so that the rotary plate 38 is set up in the downward direction with respect to the main surface 9a of the handrail 9, when the patient is sleeping, the handrail 9 is provided.
To keep the patient from falling out of bed 1,
Further, the handrail 9 can be hung down so that the patient can easily get in and out of the bed 1, and if the handrail 9 is made horizontal, the handrail 9 can be easily moved when the patient goes in and out of the bed 1.
Since it will function as a step-like object that can rest once on the handrail, the burden on the patient can be reduced. That is, instead of suddenly rising from the bed to the floor, the handrail 9 in the horizontal state seems to be put on one cushion, which also reduces the burden on the patient and is excellent in safety. Can be said. Further, if the handrail 9 is horizontal, the handrail 9 can be used as a chair or a luggage storage area.

As a mechanism for holding the handrail 9 in a horizontal state, the mechanisms shown in FIGS. 19 to 21 and 22 to 24 can be considered.

That is, the peripheral plates 3L, 3R of the bed 1,
Handrails appear and disappear horizontally with respect to 3H and 3F.
It is also possible to apply the bar member 56 or the plate member 58 that extends to the inside of the track.

In the case of the bar member 56, the bar member 56 has a cantilever shape in which one end is fixed and the other end is free, and the fixed side is rotatably attached to the peripheral plate of the bed 1. Further, the rod 56 is attached to the peripheral plate 3
It can be stored in L, 3R, 3H and 3F.

In the case of the plate member 58, the plate member 58 is a rack-shaped plate member having a plurality of tooth grooves (not shown) on the surface thereof, and the plate member 58 is a pinion gear rotated by the drive motor 62 in the plurality of tooth grooves. 64 is meshed.

The present invention is not limited to the above illustrated examples, and it goes without saying that various modifications can be made without departing from the gist of the present invention. For example,
In this embodiment, the handrail 9 is exemplified as a hollow plate-shaped body, but the form of the handrail is not limited as long as the handrail 9 has the above-described constituent elements according to the present invention. For example, it is conceivable to provide a skeleton structure of the handrail and attach a wire mesh or a grid-like plate or rod to the site so that the inside of the handrail can be seen.

[0055]

As described above, according to the present invention,
Of course, when the patient is sleeping, it can be erected so that the patient does not fall from the bed, and when the patient goes in and out of the bed, the handrail can be hung so that the handrail does not get in the way. However, the burden on the patient when getting up from the bed can be reduced.

Further, the handrail can be used as a chair or a luggage storage area by tilting the handrail to make it horizontal with the bed.

[Brief description of drawings]

FIG. 1 is a perspective view of a bed with a handrail adopting a bed handrail according to an embodiment of the present invention.

FIG. 2 is a plan view of a bed with a handrail that adopts the bed handrail according to the embodiment of the present invention.

FIG. 3 is a front view as seen from the direction of arrow III in FIG.

FIG. 4 is a rear view seen from the direction of arrow IV in FIG.

5 is a front view seen from the direction of arrow V in FIG.

FIG. 6 is an enlarged view of a main part of the area A of FIG. 2 viewed in the direction of arrow VI.

7 is an enlarged view of a main part as seen from the direction of arrow VII in FIG.

FIG. 8 is an enlarged side view of FIG.

9 is an enlarged view of a main part of a region B of FIG.

10 is a diagram viewed from the direction of arrow X in FIG.

11 is a perspective view seen from the direction of arrow XI in FIG. 1, showing a state in which the handrail is locked in an upright state.

FIG. 12 is a view as seen from the direction of arrow XII in FIG. 11.

13 is a diagram showing a state where the lock is released in the state of FIG.

FIG. 14 is a diagram viewed from the direction of arrow XIV in FIG.

FIG. 15 is a plan view showing a state in which the handrail is tilted from the state shown in FIGS. 13 and 14 to a horizontal state.

16 is a diagram viewed from a direction of an arrow XVI in FIG.

FIG. 17 is a plan view showing a state in which the handrail is tilted from the state shown in FIGS. 15 and 16 so as to be in a hanging state.

FIG. 18 is an enlarged view of a main part as seen from the direction of arrow XVIII in FIG.

FIG. 19 is a perspective view showing a modification of the bed handrail according to the embodiment of the present invention and showing a state in which the handrail is erected.

20 is a perspective view showing a state in which the handrail is horizontally tilted from the state of FIG.

FIG. 21 is a perspective view showing a state in which the handrail is tilted down from the state of FIG. 20 until it is in a suspended state.

FIG. 22 is a perspective view showing another modified example of the bed handrail according to the embodiment of the present invention, showing a state in which the handrail is erected.

23 is a perspective view showing a state in which the handrail is horizontally tilted from the state of FIG. 22.

FIG. 24 is a perspective view showing a state in which the handrail is tilted down from the state of FIG. 23 until it is in a suspended state.

[Explanation of symbols]

1 Nursing beds 3H, 3F Short side plates 3L, 3R Long side plates 3H, 3L, 3R, 3H Perimeter plate (edge where handrail is attached) 5 Bed upper surface (bed main surface) 5 Top surface 9 Handrail 9a Main surface (handrail) Side-corresponding portion when standing up) 10 Lines (handrail rotation axis) 11 Hinge 11a Swing piece 11b Swing piece 12 Track 13 Holder 15 Vertical state holding means 17 Horizontal state holding means 19 Axis (non-identical axis line) 21 Moving shaft 23 Bearing 25 Sliding grip 28 Force rod 32 Support point shaft 34 Action rod 38 Rotating plate 38a One edge 40 Rotating shaft 42 Pinion portion 50 Tooth groove 56 Bar material 58 Plate material 62 Drive motor 64 Pinion gear

Claims (15)

[Claims] 1. A handrail provided on a bed, wherein a predetermined handrail turning shaft attached to at least a longitudinal direction of a side edge of the bed and a handrail turning about the handrail turning shaft are predetermined. Bed railing that has a retainer that holds it in position. 2. The bed handrail according to claim 1, wherein the holding tool has a vertical state holding means for holding the handrail in a state of standing at least with respect to the main surface of the bed. 3. The bed handrail according to claim 2, wherein the holder has a horizontal state holding means for holding the handrail in a horizontal state with respect to the main surface of the bed. 4. The vertical state holding means is provided on a moving shaft that moves on an axis that is not the same as the handrail turning shaft, and on an edge of the peripheral edge of the bed to which the handrail is attached, the moving shaft. The handrail for beds according to claim 3, further comprising a bearing that fits with the moving shaft when the handrail is moved outward with respect to the handrail. 5. The bed handrail according to claim 4, wherein the non-identical axes are parallel to the handrail rotation axis. 6. The handrail has a slide type handle for operating to maintain and release the holding state of the handrail by each of the holding means and a force bar which rotates like a pendulum in accordance with the movement of the handle, The handrail for bed according to claim 5, wherein the moving shaft operates in response to rotation of the rod. 7. The handrail has a plate shape, and has a fulcrum shaft that pivotally supports the force rod in a portion corresponding to a side surface when standing upright, and the force rod is provided on both sides of the fulcrum shaft among the force rods. The bed handrail according to claim 6, further comprising: a rotating action rod, to which the moving shaft is rotatably attached. 8. The horizontal state holding means is pivotally changed in response to the movement of the moving shaft to a side surface corresponding portion when the handrail is erected, and becomes a standing state and a recumbent state with respect to the side surface corresponding portion. A mechanism that includes a rotating plate and holds the handrail in a horizontal state by bringing the rotating plate into contact with the peripheral edge of the bed when the handrail is made horizontal while the rotating plate is in the upright state. The handrail for beds according to claim 7. 9. The rotating plate has a rotating shaft extending in a vertical direction with respect to the side surface corresponding portion when the handrail stands or hangs down, and the rotating plate is rotated around the rotating shaft. The handrail for beds according to claim 8, which is movable. 10. The bed according to claim 9, wherein the rotating shaft has a pinion portion in at least a part thereof, and the moving shaft has a plurality of tooth grooves meshing with the pinion portion. handrail. 11. The horizontal state holding means is a bar material or a plate material that appears horizontally with respect to the side surface of the bed and extends into the orbit of the handrail when advanced. Railings for beds. 12. The handrail for a bed according to claim 11, wherein the rod has a cantilever shape in which one end is fixed and the other end is free and the fixed side is rotatably attached to the bed. 13. The plate member is a rack-shaped plate member having a plurality of tooth grooves on the surface thereof, and the plate member has a plurality of tooth grooves meshed with a pinion gear rotated by a drive motor. Item 11. The bed handrail according to Item 11. 14. A bed with a handrail, wherein the bed handrail according to any one of claims 1 to 13 is installed on a peripheral plate hanging from a main surface of the bed. 15. The bed with a handrail according to claim 14, wherein the peripheral plate has a bed long side plate or a bed side plate.