JPH0833694A - Lifting device for bathing care device - Google Patents

Abstract

(57) [Summary] [Purpose] To simplify the lifting device that constitutes the bathing care device for the physically handicapped, and reduce the weight, slim, and cost. [Structure] A pipe having an inner peripheral surface with a circular cross section is used as a pillar of the lifting device, and the inner peripheral surface of the lower part of the pillar having a required elevating stroke length is also used as a cylinder, and the pillar is housed in the conventional pillar. Even if the column has the same diameter as the cylinder diameter and the column becomes thinner than before, the couple inside the column will receive the couple force generated by the swivel arm that suspends the care recipient at the tip. By arranging the rollers that roll in the vertical direction on the peripheral surface or the outer peripheral surface at a distance in the vertical direction, the rollers press the inner surface or the outer surface of the support, but not excessively, and with respect to the length of the support. The structure does not reduce the vertical travel.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a swivel arm which swivels in a horizontal plane for transporting a cared person between an entrance of a bathroom and a bath when a physically handicapped person takes a bath, and a floor of the bathroom. A bathing care device for home-care, comprising an elevating device for elevating and lowering the revolving arm along a support pillar standing on a surface, the elevating device having a hydraulic device having a piston and a cylinder .

[0002]

2. Description of the Related Art In a conventionally proposed lifting device for a bathing care device, the support column and the cylinder are separately formed and arranged concentrically. These constitutions are, for example, Shokai 6
No. 3-100030, FIG. 2, Actual Kaihei 1-84639
This is as shown in FIG. 1 of Japanese Patent Publication No. 1-170455.

[0003]

The bathing care device purchased by an individual for home care is simple and inexpensive, and is as light as possible. In a small bathroom of an individual's house, a thick pillar makes a bather feel a sense of pressure. It is necessary not to give. Considering the case of pushing up the piston, which is pressed downward by the weight of the care-receiver and the weight of the lifting / lowering member of the bathing care apparatus, with the pressure of tap water, it is assumed that the pressure of tap water is 1 atm. Therefore, the outer diameter of the piston, that is, the inner diameter of the cylinder must be at least 100 mm, and the bathing care device in which the columns having a circular or rectangular cross section are concentrically arranged outside the cylinder has a complicated structure. Not only will the price be high, but the pillars that are close to the ceiling from the floor surface will be thick, which will squeeze the atmosphere of the bathroom, and the weight will increase, and the cost of bringing in and installing it in the bathroom of an individual house will also be high. .

Therefore, in order to obtain a slim bathing care device which simplifies the bathing care device to reduce the cost and weight, and which does not give a feeling of pressure to the atmosphere in the bathroom, it is desirable to simplify the lifting device. Is the purpose.

[0005]

A pipe having an inner peripheral surface with a circular cross section is used as a support, and a lower portion of the pipe having a required elevating stroke length is used as a cylinder, which is generated in a swivel arm of a bathing care apparatus. The couples are supported by the inner peripheral surface and the outer peripheral surface of the pipe, respectively, and have the following configurations.

That is, in the case where a couple of forces generated by the care recipient suspended at the tip of the swivel arm of the bathing care apparatus is supported by the inner peripheral surface of the column having a circular cross section, the swivel arm is supported. The piston lower part is used as a cylinder by using the lower part of the column having the ascending / descending stroke length, and the closing member forming the bottom surface of the cylinder is airtightly fixed to the lower end, and the revolving arm is raised to the closing member. At the time of moving, the pressure water for pushing up the piston is made to flow into the cylinder, and at the time of lowering the arm, a water inflow / outflow passage for draining the water in the cylinder is provided. Also has a slit in the upper part of the wall in the longitudinal direction of the strut, parallel to the center line of the strut, and is driven up and down in contact with the upper surface of the piston. And a bracket for rotatably supporting the swivel arm through the sliding groove on the driven member, and a roller that rolls in the longitudinal direction of the strut with the inner surface of the strut as a guide surface. Of the driven member, which are arranged at least at three positions in the circumferential direction at two positions spaced apart from each other in the longitudinal direction of the swivel arm, and generate a couple force generated in the swivel arm by the weight of the care receiver suspended at the tip of the swivel arm. The roller is configured to be supported via (claim 1).

In the case where a couple force generated by the care recipient suspended at the tip of the swivel arm of the bathing care apparatus is supported on the outer peripheral surface of the support column, the swivel arm has a vertical movement length. For arranging the piston inside by using the lower part of the column as a cylinder, airtightly fixing a closing member forming a cylinder bottom surface at the lower end, and pushing up the piston when raising the swivel arm to the closing member. A wall body of a portion above the portion of the support column used as the cylinder is provided with a water inflow / outflow passage for injecting pressurized water into the cylinder and draining the water in the cylinder when lowering the turning arm. In the longitudinal direction of the strut, a slit groove is bored in parallel with the center line of the strut,
A follower member that is moved up and down by the piston via a piston rod that is attached upward from the piston is attached to the piston, and the follower member is passed through the sliding groove to the follower member.
An outer cylinder in which rollers that roll in the longitudinal direction of the column are arranged at the upper end and the lower end in at least three circumferential positions, respectively, using the outer peripheral surface of the column as a guide surface, and a bracket that rotatably supports the revolving arm. Are fixed, and a couple force generated in the turning arm due to the weight of the care-receiver suspended at the tip of the turning arm is supported by the roller via the outer cylinder (claim 2).

[0008]

[Operation and effect] Since the lower part of the inner peripheral surface of the column is used as a cylinder, not only the structure is simple, but also the column can be made thinner, reducing both weight and cost, and the column does not become thick, so it is possible to take a bath. There is less pressure on the person.

Further, in the structure in which the roller rolling on the inner peripheral surface of the column supports the couple generated in the turning arm, the guide surface on which the roller rolls also on the inner peripheral surface of the column lower part forming the cylinder. Since it can be used as, the rollers can be arranged with a large distance in the longitudinal direction of the column without reducing the vertical movement of the swivel arm with respect to the length of the column.
Since it is possible to reduce the force with which the roller presses the guide surface, it is possible to sufficiently withstand the couple force generated in the swivel arm with the support column formed of the pipe common to the cylinder.

In the structure in which the roller rolling on the outer peripheral surface of the column supports the couple generated in the revolving arm, the outer peripheral surface of the lower portion of the column forming the cylinder can also be used as the guide surface for rolling the roller. Therefore, similarly, the roller can be arranged with a large distance in the longitudinal direction of the supporting pillar without reducing the lifting stroke of the revolving arm with respect to the length of the supporting pillar, and the force with which the roller presses the guide surface is reduced. Therefore, it is possible to sufficiently withstand the couple force generated in the swivel arm with the support column formed of the pipe common to the cylinder.

[0011]

[Embodiment] Fig. 1 is a lifting device for supporting a couple of forces generated in a swivel arm of a bathing care device on the inner peripheral surface of a column (claim 1).
2 is a vertical cross-sectional view showing the configuration of the embodiment of FIG. 2, and FIG. 2 is an enlarged view taken along the line AA of FIG. 1, but in FIG. 1, the roller position described later is taken along the line BB of FIG. FIG. 3 is a view showing a combined structure of rod members for supporting the upper ends of the columns adjacent to the ceiling of the bathroom in order to vertically support the columns.

FIG. 4 is a vertical cross-sectional view showing the construction of an embodiment of an elevating device (claim 2) for supporting a couple of forces generated in the swivel arm of the bathing care device on the outer peripheral surface of the column, and FIG. 5 is the outer periphery of the column. FIG. 6 is a side view of the roller that rolls along the surface and an enlarged view taken along the line CC in FIG. 4 for showing the shape of the annular member for attaching the roller to the outer cylinder. .

In FIG. 1, reference numeral 1 is a column formed by a pipe having an inner peripheral surface with a circular cross section, and the lower portion having the entire length of ascending / descending is used as a cylinder 2, and a piston 3 is arranged at the lower end thereof. The closing member 4 forming the bottom surface of the cylinder 2 is airtightly fixed by an O-ring 5. That is, the pins 6 are inserted between the support 1 and the closing member 4 at a plurality of positions in the circumferential direction, and the closing member 4 is prevented from moving downward and dropping from the inside of the support 4. Reference numeral 7 denotes a foot member made of a resin material for elastically placing the support pillar 1 on the bathroom floor surface according to a slight inclination of the floor surface, and the upper part of the foot member 7 is formed in an annular shape to support the pillar 1 The outer circumference of
The pin 6 is prevented from falling off. Reference numeral 8 is a pipe for introducing pressured water into the column 1 (cylinder 2) below the piston 3 or forming a water inflow / outflow passage for discharging water in the cylinder 2. The pipe 8 has a branch portion 10 provided with a valve 9 and a branch portion 1 provided with a valve 11 outside the strut 1.
2, and one of them is connected to a source of pressure water, for example, water, and the other is led to a drain of a bathroom. Reference numeral 13 denotes a cup packing attached to the piston 3 in order to slidably maintain airtightness between the piston 3 and the inner peripheral surface of the cylinder 2. A slit 14 is formed in an upper portion of the pillar 1 that is not used as the cylinder 2 in the longitudinal direction of the pillar 1 and in parallel with the center line of the pillar.

Numeral 15 is a driven member which is arranged in contact with the upper surface of the piston 3 and which is driven up and down by the piston 3, and penetrates the slit groove 14 on the upper end side to freely swivel the swivel arm 16 of the bathing care apparatus. A bracket 17 is mounted on the support 1, and rollers 18 that roll on the inner peripheral surface of the support column 1 in the longitudinal direction of the support column 1 are arranged at the upper and lower ends at at least three circumferential positions. The driven member 15 may be integrally formed, but in the configuration shown in FIG.
The upper end member 19 for mounting the upper end roller 18 and the lower end member 20 for mounting the lower end roller 18 are separately formed, and are connected by a connecting pipe 21. That is, the upper end member 19 is fixed to the connecting pipe 21 by the bolt 22, and the lower end member 20 is fixed to the connecting pipe 21 by the bolt 23. Since the distance between the upper end roller 18 and the lower end roller 18 is set to be larger than the length of the portion used as the cylinder 2, that is, the total length of the elevating stroke, the inner surface of the column 1 is moved by the couple force received from the revolving arm 16. Laura 1
Since the force pressed by 8 does not become excessive and the lower part of the column 1 used as the cylinder 2 is also effectively used as the guide surface of the lower end side roller 18, the upper end side roller 18 and the lower end side roller 18 Even if a large distance from 18 is provided, the total length of the elevating stroke obtained with respect to the length of all the columns 1 is not reduced. Further, since the driven member 15 is in contact with the upper surface of the piston 3 and only exerts a downward force, the piston 3 is completely cut off from the couple force generated in the swing arm 16, so that the pressure applied to the cylinder 2 is reduced. Twist does not occur when rising due to inflow of water and descending due to drainage from the cylinder 2.

Reference numeral 24 denotes a support rod for supporting the upper end of the column 1, which is fixed by penetrating the end member 25 fixed to the upper end of the column 1 in the radial direction. The support structure at the upper end of the column 1 is not the object of the present invention, but will be outlined later with reference to FIG.

FIG. 2 is an enlarged view of the AA cross section of FIG. 1 as described above.
The number of symbols in each case is 4 as an example, and the reference numerals in the figure indicate the same parts as those in FIG. The arrangement of the lower end side roller 18 is exactly the same as the arrangement of the upper end side roller 18, so the drawing is omitted.

FIG. 3 shows an example of a state in which the bathroom in which the bathing care device is arranged is looked down from the ceiling. 7 is a foot member arranged between the lower end of the column 1 and the bathroom floor, and 16 is a swivel arm. , 24 are support rods that are fixed by penetrating the end member 25 fixed to the upper end of the column 1 in the radial direction, as described above. 26 is a bathtub, 27 is an entrance / exit of the bathroom, and the lifting / lowering device of the bathing care device is arranged near the end of the entrance 27 on the bathtub side, and both ends of the support rod 24 attached to the upper end of the pillar 1 and two distant bathrooms. By the first push rod 28 which is expandable and contractible between the corners, both ends of the support rod 24 are pressed against the pillar 30 of the bathroom via the angle member 29 fixed to the upper end of the column 1, for example, and the two corners close to each other. And the first push rod 28, the second push rod 31 that is extendable and contractible is passed at a right angle to the first push rod 28 to position the support rod 24 in the longitudinal direction.

As described above, FIG. 4 is a vertical cross-sectional view showing the construction of an embodiment of an elevating device (claim 2) for supporting a couple of forces generated in the revolving arm 16 on the outer peripheral surface of the column, which is circular in cross section. The pillar 1 is formed by the pipe having the inner peripheral surface, and the lower portion having the entire elevating stroke length is used as the cylinder 2.
The piston 3 having the cup packing 13 attached thereto is arranged, and the closing member 4 forming the bottom surface of the cylinder 2 is fixed to the lower end of the cylinder 2 with an O-ring 5 in an airtight manner so that the floor surface of the bathroom is slightly inclined. In order to elastically mount the column 1 on the floor, a foot member 7 made of a resin material is attached to the lower end of the column 1, and a water inflow / outflow passage is provided in the closing member 4, and a water inflow / outflow passage is provided. The pipe 8 to be formed is attached, and the slit groove 14 is bored in the upper portion of the column 1 which is not used as the cylinder 2, which is the same as the configuration of FIG. In FIG. 4, the closing member 4 is fixed to the bottom of the column by the countersunk screw 6a. However, depending on the material and shape of the closing member 4 and other conditions, it is preferable to use the pin 6 even if the pin 6 is used. It may be better to use. It is also possible to vertically support the support column 1 as shown in FIG. 3, for example, via a support rod 24 that is fixed through the end member 25 fixed to the upper end of the support column 1.
The configuration is the same.

In FIG. 4, a piston rod 3-1 is attached to the piston 3 in an upward direction from the piston 3, and a driven rod which is driven up and down by the piston 3 via the piston rod is attached to the upper end of the piston rod 3-1. The member 15a is attached.
In FIG. 4, the coil spring 3-2 is interposed between the driven member 15a and the upper end surface of the piston rod 3-1, and when the piston 3 reaches the lower end position, the coil spring 3-2 is hung from the tip end of the revolving arm 16. The coil spring 3-2 is not an indispensable requirement, although it is configured to prevent an impact on a cared person (not shown). Reference numeral 40 denotes an outer cylinder arranged outside the pillar 1 and concentric with the pillar. The outer cylinder has rollers at its upper and lower ends which roll on the outer peripheral surface of the pillar 1 in the vertical direction, that is, in the longitudinal direction of the pillar. At least three 18a are arranged in the circumferential direction of the column. Reference numeral 17 is a bracket that supports the swivel arm 16 so that the swivel arm 16 can swivel.
Is arranged in contact with the outer peripheral surface of the outer cylinder 40 and the bracket 17
Means that it penetrates through the slit 14 and is integrally coupled to the driven member 15a by a plurality of bolts 41. Therefore, since the couple generated in the revolving arm 16 due to the weight of the care receiver suspended at the tip of the revolving arm 16 is supported by the roller 18a via the outer cylinder 40, the outer cylinder is supported by the column 1.
Without causing any kinks between the piston rod 3-1
The piston 3 can be driven up and down without exerting a couple force on. The outer peripheral surface of the lower portion of the column 1 whose inner peripheral surface is used as the cylinder 2 is defined by the roller 1 on the lower end side of the outer cylinder 40.
Since it can be effectively used as a guide surface for 8a,
Since the length of the up-and-down stroke is not reduced with respect to the entire length of the column 1, and the distance between the upper cylinder side roller 18a and the lower cylinder side roller 18a can be made sufficiently large, the cylinder 2
The column 1 made of the same pipe as can sufficiently withstand the couple generated in the swivel arm 16. 42 is a roller 1
An annular roller support member for attaching 8a to the outer cylinder 40 is fixed to the outer cylinder 40 by a screw member 43.

FIG. 5 shows the roller 18a and the roller support member 42.
4 is an enlarged view taken along the line C-C in FIG. 4 for showing the shape of
An example is shown in which the cross section of the outer peripheral surface of the column is circular and the number of rollers 18a is four, and the cross section of part of the rollers 18a is shown. Reference numeral 44 is a rotating shaft of the roller 18a. Roller 1
8a is formed in a drum shape, and the support 1 is provided at both ends in the rotation axis direction.
Contact the outer peripheral surface of. It is as described above that in the figure, 1 is a column, 15a is a driven member, and 17 is a bracket.

FIG. 6 is a side view of the roller support member 42, and the roller 18a is not shown. 42-1 is an outer cylinder 40
Is a portion fitted into the inner peripheral surface of the. Reference numeral 42-2 denotes a tap hole into which the screw member 43 shown in FIG. 4 is screwed, and a plurality of tap holes are provided in the circumferential direction. The screw member 43 is inserted from the outside of the outer cylinder 40 and screwed to fit the roller support member 42. It is fixed to the outer cylinder 40.
FIG. 6 is a view showing a roller support member 42 on the upper end side of the outer cylinder 40. The roller support member 42 for mounting a roller on the lower end side of the outer cylinder 40 has an upside-down shape, but the drawing is omitted.

Both the lifting device shown in FIG. 1 and the lifting device shown in FIG. 4 open the valve connected to the pressure water source at the two branched portions of the pipe 8 forming the water inflow and outflow passages.
When the other valve is closed and the pressurized water flows into the cylinder 2 below the piston 3, the piston 3 is pushed up together with the driven members 15 and 15a. Therefore, the bracket 17 and the bathing care device rotatably attached to the bracket Swivel arm 1
6 rises and stops when the opened valve is closed. When the drain side branch valve is opened and the water in the cylinder 2 is drained, the weight of the care recipient suspended at the tip of the swivel arm and The piston 3 descends along with the driven members 15 and 15a by being drained by the weight of each part that moves up and down. The couple force generated in the swivel arm 16 depending on the weight of the care receiver suspended at the tip of the swivel arm 16 is the driven member 15 or the outer cylinder 4.
0, rollers 18 and 18a attached to the upper and lower ends and a support 1
The piston 3 is supported between the inner peripheral surface and the outer peripheral surface thereof, and the lifting function can be achieved without twisting the piston 3 itself. Since the length of the lower portion of the column 1 used as the cylinder 2 is also used as the roller guide surface, the vertical spacing between the rollers is increased without reducing the total lifting stroke with respect to the length of the column 1. Since the surface pressure between the roller and the inner or outer peripheral surface of the column can be kept low, the number of columns generated in the swivel arm is sufficiently large with a column having a diameter equal to the diameter of the cylinder conventionally stored in the column. Since it can support the force, the form of the lifting device, that is, the bathing care device becomes slim, and the weight and cost can be reduced.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional view of an example of an elevating device of the present invention which receives a couple of forces generated in a swivel arm of a bathing care device on an inner peripheral surface of a column.

FIG. 2 is an enlarged view of an AA cross section of FIG.

FIG. 3 is a diagram showing an example of arrangement of the device of the present invention in a bathroom.

FIG. 4 is a vertical cross-sectional view of an example of an elevating device of the present invention in which a couple of forces generated in a swing arm is received by an outer peripheral surface of a column.

FIG. 5 is an enlarged view of the CC cross section of FIG.

6 is a side view of FIG. 5 showing only a roller support member that supports a roller rolling on the outer peripheral surface of a column.

[Explanation of symbols]

 1 Strut 2 Cylinder 3 Piston 3-1 Piston rod 4 Closing member 5 O-ring 6 Pin 6a Countersunk screw 7 Foot member 8 Pipe forming water inflow / outflow passage 9 Valve 10 Branch part 11 Valve 12 Branch part 13 Cup packing 14 Sliding groove 15 Driven member 15a Driven member 16 Revolving arm 17 Bracket 18 Roller 18a Roller 19 Upper end side member 20 Lower end side member 21 Connecting pipe 22 Bolt 23 Bolt 24 Support rod 25 End member 26 Bathtub 27 Outlet / outlet port 28 First push rod 29 Angle material 30 Bathroom pillar 31 Second push rod 40 Outer cylinder 42 Roller support member 43 Screw member

Claims (2)

[Claims] 1. A swivel arm (16) swiveling in a horizontal plane for carrying a care receiver between a doorway (27) of a bathroom and a bathtub (26), and a support for the swivel arm (16). The lifting device for a bathing care device for home-care, comprising a lifting device for lifting and lowering the support, wherein a pillar (1) standing on the floor of the bathroom is formed by a pipe having an inner peripheral surface with a circular cross section. A closing member for arranging a piston (3) inside using the lower part of the support column having the entire vertical movement length of the swing arm (16) as a cylinder (2) and forming a bottom surface of the cylinder (2) at a lower end (4) is fixed airtightly,
Into the closing member (4), pressure water for pushing up the piston (3) is caused to flow into the cylinder (2) when the turning arm (16) is raised, and when the turning arm (16) is lowered, the cylinder (2). ) Is provided with a water inflow / outflow passage (8) for draining water, and the wall body of a portion above the portion used as the cylinder (2) of the pillar (1),
Sliding groove (14) is bored in the longitudinal direction of the strut (1) in parallel with the center line of the strut (1), and is driven up and down by being driven by the piston (3) in contact with the upper surface of the piston (3). Member (1
5) is arranged, and in the driven member (15), the sliding groove (1
A bracket (17) for rotatably supporting the swivel arm (16) is attached through the roller 4), and a roller (rolls in the longitudinal direction of the strut (1) with the inner surface of the strut (1) as a guide surface. 18) in at least two circumferential positions 3 at a distance from each other in the longitudinal direction of the column (1).
An elevating / lowering device for a bathing care device in which a couple force generated by the weight of a care-receiver suspended at the tip of the revolving arm (16) is supported by the roller (18) via the driven member (15). . 2. A swivel arm (16) swiveling in a horizontal plane for carrying a care receiver between a doorway (27) of a bathroom and a bathtub (26), and the swivel arm (16) being supported. In the bathing care device for home-care, which comprises a lifting device for lifting and lowering, a pillar (1) standing upright on the floor of the bathroom is formed by a pipe having an inner peripheral surface with a circular cross section. Then, the lower part of the column having the entire length of the vertical movement of the swivel arm (16) is used as the cylinder (2) to dispose the piston (3) inside and form the bottom surface of the cylinder (2) at the lower end. The closing member (4) is airtightly fixed, and pressure water for pushing up the piston (3) when raising the turning arm (16) is flowed into the closing member (4) into the cylinder (2) to turn the closing member (4). Siri when lowering the arm (16) A water inflow / outflow passage (8) for draining water in the binder (2) is provided, and a wall of an upper portion of the column (1) above the portion used as the cylinder (2) of the column (1) is provided with the column (1). A piston rod (3) which is provided with a slit groove (14) in the longitudinal direction parallel to the center line of the column (1) and is attached to the piston (3) upward from the piston (3).
-1) A driven member (15a) which is driven up and down by the piston (3) is attached, and the outer peripheral surface of the support column (1) is guided to the driven member (15a) through the sliding groove (14). As a roller (18a) that rolls in the longitudinal direction of the column (1), the outer cylinder (40) is arranged at the upper end and the lower end at least at three circumferential positions, respectively, and the revolving arm (16) is revolvable. A bracket (17) to be supported is fixed, and a couple force generated in the turning arm by the weight of the care-receiver suspended at the tip of the turning arm (16) is applied to the roller (40) via the outer cylinder (40). 18a) Lifting device for bathing care device.