JP3098293B2 - Bed equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to, for example, the sick, disabled, and bedridden elderly (hereinafter simply referred to as "the sick, etc.").
More particularly, the present invention relates to a bed apparatus having a lifting mechanism for a sick person or the like.

[0002]

2. Description of the Related Art Along with the development of medical equipment, bed devices having various functions or nursing care devices used in conjunction with beds have been proposed.

[0003] For example, Japanese Patent Application No. 1-38682 (JP-A-2-215462) filed on Feb. 17, 1999 proposes an improved bed device. This bed apparatus can be used in a room of, for example, about 6 tatami mats or 4.5 tatami mats in consideration of the housing situation in Japan. A lifting mechanism that can be lowered and moved to the side of the bed body is added. In addition, this bed device is also devised so as to be able to assist rehabilitation of a sick person or the like.

[0004] The bed apparatus described above specifically has a pair of guides fixedly provided to the bed body so as to extend in the width direction of the bed body at both ends in the longitudinal direction of the bed body. A pair of sliders is attached so that each of these guides slides in the width direction of the bed body. These sliders project to the side of the bed body by sliding along the guide. In addition, a column is attached to each slider so as to extend upward from each slider. A support member is mounted movably along each column. The support member can be stopped at an arbitrary position moved along each of the columns. Also, two parallel side bars are attached so as to connect the pair of support members.

In the bed apparatus described above, the pair of columns can be moved between a position within the width of the bed body and a position outside the width of the bed body. Further, the support member can be moved up and down along each of the columns, and can be stopped at the moved position, regardless of the position of the columns. As a result, the pair of support members and the two side bars attached thereto can take any position within the space above the bed body and the space beside the bed body.

Therefore, the sick person or the like lying on the bed body can be moved to the side of the bed body by utilizing the movement of the support member and the side bar.
Also, it can be moved in the opposite direction. Therefore, according to this bed apparatus, it is possible to easily take a sick person or the like down from the bed body and take a bath or a wheelchair, or conversely, return it to the bed body.

[0007] When the above-mentioned sick person is moved, an appropriate hanger member is actually placed under the sick person's body.
The hanger member is hung on the side bar. Therefore, by selecting the type of hanger member,
It can be moved in any posture, such as a posture while lying down or a sitting posture.

[0008]

The side bars described above are often left attached to the support member. Therefore, when the side bar is not used, the side bar will be located directly above the sick person or the like lying on the bed body, and as a result, the side bar may give a feeling of oppression to the sick person or the like. . To prevent the side bar located directly above the sick or the like from giving a feeling of oppression to the sick or the like, when not in use, the side bar is brought to a high position so as to be sufficiently separated from the sick or the like. There is a need.

Therefore, an object of the present invention is to provide a bed apparatus which can be easily operated to bring the side bar to a high position when not in use, as described above.

[0010]

According to the present invention, there is provided a bed body having a longitudinal dimension and a width dimension similar to the above-described prior art, and a bed body having a width direction at both longitudinal ends of the bed body. And a pair of sliders mounted so as to be extended in the width direction of the bed body by the slide, and a pair of sliders mounted to the respective sliders so as to extend upward from the respective sliders. The present invention is directed to a bed device including a support and a pair of support members connected by two parallel side bars, and in order to solve the above-described technical problem, the following configuration is provided. It is characterized by having.

That is, a slide base is interposed between each support and each support member, and the slide base is mounted so as to be movable along the support and to be able to stop at the moved position. , Which is attached to the slide base so as to be vertically movable. On each slide base, first and second pulleys are provided so as to be rotatable while changing their positions vertically. An endless belt is wound between the first and second pulleys, and a part of each endless belt is fixed to each of the support members. The rotating shafts of the paired first pulleys are connected by a connecting shaft, so that the paired first pulleys rotate integrally.

Preferably, the rotation axis of each first pulley is
The connection boss includes a connection boss having a non-circular cross section facing each other, and the connection shaft includes both end portions that receive the connection boss in a state where rotation of the connection boss is prohibited, and an intermediate portion that can expand and contract in the length direction.

[0013]

According to the bed apparatus of the present invention, the two side bars are moved not only by the vertical movement of the slide base along the column but also by the vertical movement of the support member on the slide base. Thus, the position can be changed in the vertical direction.

The vertical movement of the support member on the slide base occurs as a linear movement, which is replaced by the rotation of the first and second pulleys via the endless belt. Accordingly, when the rotation shafts of the paired first pulleys are connected by the connection shaft, the rotation shafts of the paired first pulleys rotate integrally, and as a result, on each slide base. The vertical movement of each support member is interlocked with each other.

[0015]

Therefore, according to the present invention, it is possible to increase the vertical movement range of the two side bars without increasing the height of the support column. Can be brought to a sufficiently high position. Therefore, it is possible to prevent the side stick from giving a feeling of oppression to the sick, etc., and also to prevent the side stick from obstructing such an examination, etc., when performing a medical examination, etc. for the sick, etc. can do.

Further, when lifting the sick person or the like, the movement of the slide base along the column is used while the support member is positioned at the lowermost end of the movement range with respect to the slide base. Therefore, a large force is required to move the slide base along the column, and for example, a speed reduction mechanism is used. Therefore, the moving speed along the column of the slider base tends to be low. On the other hand, since the movement of the support member with respect to the slide base is performed when the side bar is not used, that is, in a state where the weight of the sick or the like is not applied, a deceleration mechanism or the like is not required. In addition, the support member can be quickly moved with respect to the slide base.

Further, according to the present invention, the vertical movement of the support member on each of the pair of slide bases can be linked with each other. Therefore, a pair of support members located at a distance of about 2 m are in a squeezed state when they are not interlocked with each other, and may not be able to move smoothly. ,
The pair of support members can both move smoothly. Therefore, the operation for moving the support member in the vertical direction only needs to be performed on one of the support members or a part of the side bar, which facilitates such an operation.

When the connecting shaft has the intermediate portion which can be extended and contracted in the longitudinal direction as described above, the assembling process of the bed apparatus according to the present invention is facilitated. That is, the connecting shaft can be mounted after the pair of columns and the pair of slide bases have already been assembled.

[0019]

4 to 6 are perspective views showing the overall structure of a bed apparatus 1 according to an embodiment of the present invention. Here, FIGS. 4 to 6 show first, second and third typical modes that the bed apparatus 1 can take, respectively.

The main components included in the bed apparatus 1 will be described. The bed apparatus 1 includes a bed body 3 on which a mattress 2 is spread. The bed body 3 may have an up-and-down configuration.

A pair of sliders 4 and 5 are attached at both longitudinal ends of the bed body 3 so as to be slidable in the width direction of the bed body 3. The sliders 4 and 5 are protruded in the width direction of the bed body 3 due to the sliding, as is well shown in FIGS. Wheels 6 and 7 that roll on the floor are attached to the sliders 4 and 5, respectively.

A pair of struts 8 and 9 (see FIG. 5) are mounted so as to extend upward from each of the sliders 4 and 5. In this embodiment, the struts 8 and 9 can be moved in the width direction of the bed body 3 with respect to the corresponding sliders 4 and 5, as can be seen by comparing FIG. 4, FIG. 5 and FIG. More specifically, the struts 8 and 9 are configured to be moved with respect to the sliders 4 and 5 in accordance with the sliding of the sliders 4 and 5 with respect to the bed body 3. That is, as shown in FIG. 5, when the sliders 4 and 5 do not protrude in the width direction of the bed body 3, the columns 8 and 9 are located near one ends of the sliders 4 and 5, and as shown in FIG. In a state where the sliders 4 and 5 are most protruded in the width direction of the bed body 3, the columns 8 and 9 are located near the other ends of the sliders 4 and 5, and in an intermediate state between them, as shown in FIG. , Columns 8 and 9 are located in the middle of sliders 4 and 5, respectively.

The mechanism for realizing the operation described above is as follows.
For example, Japanese Patent Application No. 2-24 filed on Sep. 14, 1990
No. 5248 and Japanese Patent Application No. 2-245249.

For example, as can be seen by comparing FIGS. 4 and 5, a pair of slide bases 10 and 11 are mounted so as to be movable along the columns 8 and 9 and stop at the moved position.

As can be seen by comparing FIGS. 4 and 5, for example, a pair of support members 12 are provided so as to be vertically movable with respect to the slide bases 10 and 11, respectively.
And 13 are mounted.

Each of the support members 12 and 13 includes a bracket 14 and 15. A pair of arms 16 and 17 are attached to one bracket 14 so as to project in opposite directions.
Is rotatable upward as shown in FIG. A pair of arms 18 and 19 are attached to the other bracket 15 in a similar manner.

Two parallel side bars 20 and 21 are provided to connect the pair of support members 12 and 13 to each other. More specifically, one side bar 20 is attached to each end of arms 16 and 18 and the other side bar 21
Are attached to each end of the arms 17 and 19.

The structure in which the slide bases 10 and 11 can move along the columns 8 and 9 and can be stopped at the moved position, and the support members 12 and 13 can move up and down with respect to the slide bases 10 and 11 The details of the above configuration will be described with reference to FIGS.

FIG. 1 shows a bracket 1 which forms a part of one of the columns 9, the slide base 11 and the support member 13.
5 is shown. The other support 8, slide base 10, and bracket 14 each have a configuration symmetrical to the configuration shown in FIG.

On the slide base 11, a guide rail 22 extending in the vertical direction is provided. Grooves (not shown) extending vertically are formed on both side surfaces of the guide rail 22. On the other hand, guide rollers 23, 24, 25, and 26 that fit into grooves formed on each side surface of the guide rail 22 and roll in the grooves are attached to the bracket 15. With such a configuration, the bracket 15
Is movable up and down with respect to the slide base 11.

Magnets 27 and 28 are fixed on the guide rail 22 while changing their positions up and down. On the other hand, the bracket 15 is provided with suction pieces 29 and 30 that can come into contact with these magnets 27 and 28. Magnets 27 and 28
Functions to define the end of the range of movement of the bracket 15 with respect to the slide base 11 and stabilizes the positioning of the bracket 15 when it is positioned at the uppermost end and the lowermost end.

The above-described stabilization of the positioning at the uppermost end and the lowermost end is achieved by providing a means for balancing the gravity exerted on the slide bases 10 and 11 by the support members 12 and 13 as described below. It is effective for That is, in this embodiment, a constant load spring 31 is used as the above-described balance means. Constant load spring 31
Is made of a steel tape having a cross section that is curved in a C-shape and is provided with a “habit” that is spirally wound in the longitudinal direction, and one end of which is fixed to the bracket 15 and The one end is wound around a reel 32 rotatably mounted on the slide base 11. Since the constant load spring 31 is pulled out from the reel 32 with a substantially constant load, it provides a substantially constant resistance when the bracket 15 moves downward. Since a constant load spring similar to the constant load spring 31 is also provided on the other slide base 10, one constant load spring 31 has a gravity given by half of the weight of the support members 12 and 13 and the side bars 20 and 21. Is chosen to balance. In this way, when the constant load spring 31 is provided, the structure including the support members 12 and 13 and the side bars 20 and 21 can be moved in the vertical direction with a small force.

Incidentally, instead of the constant load spring 31, a counterweight, a gas spring or the like may be used.

The operation of the pair of brackets 14 and 15, ie, the pair of support members 12 and 13, is configured to interlock with each other. Therefore, the following configuration is employed.

As shown in FIG. 1, the first and second pulleys 3 are placed on the slide base 11 by changing their positions up and down.
3 and 34 are provided rotatably. These pulleys 3
An endless belt 35 is wound between 3 and 34. Preferably, the endless belt 35 includes the teeth 3
6 is used, and a pulley 3 is used.
As 3 and 34, toothed pulleys are used. A part of the endless belt 35 is fixed to the bracket 15 via a fixing block 37. In this way, the linear movement of the bracket 15 in the vertical direction with respect to the slide base 11 is converted into, for example, the rotational movement of the first pulley 33.

The rotating shaft 38 of the first pulley 33 is provided with a connecting boss 39 having a non-circular cross section such as a hexagon. As shown in FIG. 2, the other slide base 10
The connection boss 40 facing the connection boss 39 is also located on the side. As described above, the slide base 10
2 and 11 are symmetrical, but FIG. 2 shows the first and second pulleys 33
And 34, endless belt 35, and rotating shaft 3
8, first and second pulleys 41 and 42, endless belt 43, and rotating shaft 44
Are shown on the slide base 10 side.

The connection bosses 39 and 40 facing each other are connected by a connection shaft 45 so as to rotate integrally. The connecting shaft 45 is shown alone in FIG.

The connecting shaft 45 has an end portion 4 for receiving the connecting bosses 39 and 40 in a state where mutual rotation is prohibited.
6 and 47. In this embodiment, ends 46 and 47 are provided by pipes 48 and 49 having a hexagonal cross section.

The connecting shaft 45 has an intermediate portion 50 which can be extended and contracted in the longitudinal direction. In this embodiment, a rod 51 having a hexagonal cross section is inserted halfway into one pipe 48 and fixed to the pipe 48 by a fixing screw 52. The rod 51 is inserted into the other pipe 49, and the length of the connecting shaft 45 in the longitudinal direction can be changed by changing the degree of the insertion. An adjusting screw 53 is screwed into the rod 51, and a long hole 54 that receives the adjusting screw 53 is provided in the pipe 49. The connecting shaft 45 can be extended and contracted in the length direction by an amount by which the adjusting screw 53 can move in the elongated hole 54. When an appropriate length is given, the connecting screw 45 is fixed by tightening the adjusting screw 53. Is done.

As described above, when the connecting shaft 45 which can be extended and contracted in the longitudinal direction is used, the assembling process of the bed apparatus 1 is facilitated. That is, the connecting shaft 45 can be mounted after the columns 8 and 9 and the slide bases 10 and 11 have been assembled. First, in a state where the length of the connecting shaft 45 is shortened by loosening the adjusting screw 53, the connecting boss 3 is attached to one of the ends 46 and 47.
9 and 40, and then the end 46
Connecting bosses 39 and 40
The length of the connecting shaft 45 may be increased so that either one of them may be inserted, and finally the adjusting screw 53 may be tightened.

For example, a compression spring may be inserted into the pipe 49 to urge the rod 51 to move outward. By doing so, the connecting shaft 4
5 becomes easier.

As described above, when the pulleys 33 and 41 are connected so as to rotate integrally by the connecting shaft 45, the pair of support members 12 and 13 can be simultaneously and vertically moved smoothly. .

The connecting shaft 45 described above is
As shown in FIG. 6, the pair of slide bases 10 and 11 are covered by a hollow horizontal bar 55 connecting the upper ends thereof. The horizontal bar 55 also reinforces the pair of slide bases 10 and 11. Further, covers 56 and 57 are attached to the slide bases 10 and 11, so that the operating parts such as the endless belts 35 and 43 and the pulleys 33, 34, 41 and 42 are not visible from the outside.

FIG. 2 also shows a mechanism for moving the slide bases 10 and 11 along the columns 8 and 9.

As shown by the broken lines on the slide base 11 side, the columns 8 and 9 are respectively received in the slide bases 10 and 11 which are hollow and open at the lower end. The configuration of the slide base 11 will be described. The slide base 11 can be moved up and down with respect to the support 9 with guide blocks 58 and 59 made of, for example, resin. Sprockets 60 and 61 are provided near the upper end of the support 9 and below the support 9.
An endless chain 62 is wound between the two. An opening 63 that is long in the up-down direction is provided at a position on the side wall of the support 9 that faces the one path of the endless chain 62. A part of the endless chain 62 has an opening 63
Slide base 1 through a fixed block 64 penetrating through
Fixed to 1. The endless chain 62 is circulated by rotating the sprocket 61 by a motor 65. As the motor 65, a motor that can rotate forward and backward is used, and by rotating the motor 65, the slide base 11 is moved up and down along the column 8. Since a speed reduction mechanism (not shown) is interposed between the motor 65 and the sprocket 61, when the motor 65 is stopped, the slide base 11 can be stopped at the position moved as described above. is there.

The structure of the slide base 10 is substantially the same as the structure of the slide base 11 described above. In FIG. 2, the sprocket 61, the endless chain 6
2 and the sprocket 6 respectively corresponding to the motor 65
6, an endless chain 67 and a motor 68 are shown. Although the two motors 65 and 68 are operated in synchronization with each other, the sprockets 61 and 6
6 may be provided so that the sprockets 61 and 66 are driven by a single motor.

Using this bed apparatus 1, a bed body 3
Typically, a plurality of hanger shovels 69 as shown in FIG. 6 are used to lift a sick person or the like who is lying on top of it while lying down.

The hanger shovel 69 is made of a relatively rigid material such as hard plastic, aluminum, and stainless steel. The hanger shovel 69 is given a curved shape so as to form an L-shape as a whole, and has a hook portion 70 formed at one end thereof which can be engaged with the side bar 20 or 21.

In such a hanger shovel 69, the bottom part 71 extending in the horizontal direction is inserted under the body of a sick person or the like lying on the bed body 3, and then the hook part 70 is inserted.
Is engaged with the side bar 20 or 21. The plurality of hanger shovels 69 are appropriately distributed on both sides of the body of the sick person or the like in consideration of the weight of the sick person or the like.

The hanger shovel 69 as described above is advantageous in that it can be inserted under the body of the sick or the like without lifting the sick or the like. As described above, after engaging each hook portion 70 of the hanger shovel 69 with the side bar 20 or 21, the sick person or the like can be moved to a desired position by displacing the side bars 20 and 21. .

Next, a method of using the bed apparatus 1 will be described. As shown in FIG. 4, the sick person or the like lying on the bed body 3 is lifted with the columns 8 and 9 and the slide bases 10 and 11 positioned substantially at the center of the bed body 3 in the width direction. It is. At this time,
By hand, the support members 12 and 13 are brought to the lowest end of the range of movement relative to the slide bases 10 and 11. Then, the slide bases 10 and 11 are moved downward, and the hook portions 70 of the hanger shovel 69 inserted under the body of the sick or the like are engaged with the side bars 20 and 21.

Next, the slide bases 10 and 11
Are the support members 12 and 13 and the side bars 20 and 2
Along with 1 is displaced upward along columns 8 and 9,
The hanger shovel 69 is the mattress 2 on the bed 3
To a height away from

When replacing sheets or the like laid on the mattress 2, the operation is performed in the above-described state, and when the work is completed, the state may be returned to the original state. Hereinafter, a case where the sick person or the like is moved to a position shifted to the side of the bed body 3, such as a case where the sick person or the like is bathed, will be described.

Next, as shown in FIG. 6, the sliders 4 and 5 are in a state of protruding to the side of the bed body 3.
At this time, the supports 8 and 9 and the slide base 10
And 11 are moved to a position further away from the side of the bed body 3 with respect to the sliders 4 and 5. As a result, the sick person or the like is moved from the upper part of the bed body 3 to a position shifted laterally while maintaining the same height.

Next, the slide bases 10 and 11 are
The support members 12 and 13 and the side bars 20 and 21 are moved downward as shown in FIG. In response, the sick or the like is moved downward on the side of the bed body 3. If a bathtub is placed here,
The sick and the like may be put into the bathtub from this position.

To return the sick person or the like to the bed body 3 again, an operation reverse to the above-mentioned operation may be performed.

After the movement of the sick person or the like is completed and the sick person or the like is again laid on the bed body 3, the side bar 2
The following operation is performed so that the presence of 0 and 21 does not give a feeling of oppression to a sick person or the like.

First, the arms 16 to 19 are turned upward, and the support members 12 and 13 are
Lifted up for 0 and 11. This lifting can be performed lightly by the action of the constant load spring 31, and by the action of the connecting shaft 45, both support members 1
2 and 13 can be performed in conjunction with each other.
Support members 12 and 13 are slide bases 10 and 1
The state where the top end is reached with respect to 1 is the magnet 2 shown in FIG.
7 is stably maintained by adsorbing the adsorption piece 29.

Next, the slide bases 10 and 11 are
It is moved upward along the columns 8 and 9. Further, the sliders 4 and 5 are further slid so as not to protrude from the bed body 3. As a result, as shown in FIG. 5, the side bars 20 and 21 are biased toward one end in the width direction of the bed body 3 while maintaining a sufficient height.

[Brief description of the drawings]

FIG. 1 is a side view of one slide base 11 included in a bed apparatus 1 according to an embodiment of the present invention.

FIG. 2 is a front view showing a pair of slide bases 10 and 11 included in the bed device 1.

FIG. 3 is a front view showing the connecting shaft 45 shown in FIG. 2 alone;

FIG. 4 is a bed apparatus 1 in a first exemplary configuration.
FIG.

FIG. 5: Bed apparatus 1 in a second exemplary form
FIG.

FIG. 6 shows a bed apparatus 1 in a third typical form.
FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Bed apparatus 3 Bed main body 4,5 Slider 8,9 Prop 10,11 Slide base 12,13 Support member 20,21 Side bar 22 Guide rail 23,24,25,26 Guide roller 33,41 First pulley 34, 42 second pulley 35, 43 endless belt 37 fixing block 38, 44 rotating shaft 39, 40 connecting boss 45 connecting shaft 46, 47 end 48, 49 pipe 50 intermediate part 51 rod 52 fixing screw 53 adjusting screw 54 long hole

────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-4-122361 (JP, A) JP-A-4-122362 (JP, A) JP-B-4-26856 (JP, B2) (58) Field (Int.Cl. ⁷ , DB name) A61G 7/00 A61G 7/053 A61G ⁷ /10-7/16

Claims (2)

(57) [Claims] 1. A bed body having a longitudinal dimension and a width dimension, a bed body being slidable in the width direction of the bed body at both longitudinal ends of the bed body, and being slidable in the width direction of the bed body by this sliding. A pair of sliders mounted to be overhanging, a pair of columns mounted to each slider so as to extend upward from each slider, and a position movable and moved along each column A pair of slide bases mounted so as to be able to stop at a position, a pair of support members mounted to be movable in the vertical direction with respect to the slide bases, and a pair of the support members, which connect the pair of support members. Two pulleys, first and second pulleys which are rotatably provided on the respective slide bases by changing their positions vertically, and the first and second pulleys. An endless belt wound around pulleys and a part of which is fixed to each of the support members, and a connection shaft for connecting the respective rotation shafts of the paired first pulleys so as to rotate together. A bed device comprising: 2. A rotating shaft of each of the first pulleys includes a connecting boss having a non-circular cross section opposed to each other, and both ends of the connecting shaft receiving the connecting boss in a state where the rotation of the connecting boss is prohibited. The bed device according to claim 1, further comprising a portion, and an intermediate portion that can extend and contract in a length direction.