JPH1142271A - Multi-point load-supporting bed - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a multi-point load-supporting bed which enables applying of a comfortable massaging effect entirely on a human body while stimulating local parts of the human body. SOLUTION: In this multi-point load-supporting bed which has a means to generate a specified acupressure pattern, the bed comprises support structural bodies 55-57 supporting the top surface thereof. The means for generating the specified acupressure pattern comprises a substrate 100 so arranged to freely move horizontally with respect to the support structural bodies 55-57 and a drive means to reciprocate the substrate 100 horizontally at a specified speed. The surface of the substrate 100 has a curved surface with a specified longitudinal cross section profile so that the lower end parts of a plurality of push bars 70 contact the surfaces of the respective substrates 100. The support structural bodies 55-57 are each provided with a bottom plate part 56 disposed parallel with an installation surface of the bed and a lower plate part 57 which is arranged separately on a bottom plate parallel therewith while being arranged below the top surface thereof separately from the top surface. A guide means is provided on the lower plate parts 57 to guide the substrate 100 in the longitudinal direction of the bed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] The present invention relates to a multipoint load supporting bed. More specifically, the present invention relates to a multi-point load supporting bed that generates a comfortable acupressure pattern by vertically moving a plurality of push rods provided on the upper surface of the bed movably in a vertical direction at a predetermined displacement and speed.

[0002]

BACKGROUND OF THE INVENTION Waves can be mentioned as an example of a pleasant change in the natural world. When this wave is decomposed into a Fourier series, if the fundamental wave is a wave of 1 cycle / second, and if the intensity is 1, the second harmonic which is a constituent wave of the wave is 2 cycles / second and is 1/2. The next third harmonic is 1 at 3 cycles / sec.
The n-th harmonic is said to have an intensity of 1 / n at n cycles / sec.

In general, a comfortable change sensation in the natural world such as a wave is known as so-called 1 / f fluctuation.

[0004] Two-system air circuits each having a plurality of air chambers and two air pumps connected to the air circuits are used to apply the 1 / f fluctuation to bedding to give a comfortable massage effect to the human body. There is a structured air mat. In this air mat, the two systems of air mats are alternately inflated and contracted alternately under the control of a pump to give a fluctuation effect that gives a human body a delicate massage effect.

[0005] In the case of the above-mentioned conventional air mat, it is convenient to give fluctuation to the whole body, but it has a drawback that it cannot stimulate a local part called acupoints / meridians. is there.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a multi-point load supporting bed which solves the above-mentioned drawbacks of the conventional air mat, gives a comfortable massage effect to the whole body, and can stimulate local parts of the body. It is to be.

[0007]

A multi-point load supporting bed according to the present invention comprises a plurality of beds arranged vertically and horizontally on the upper surface of the bed, and the beds are provided with push bars provided movably in the up and down directions. A multi-point load supporting bed for pressing a human body above, comprising means for vertically moving the plurality of push rods at a predetermined displacement and speed to generate a predetermined acupressure pattern, wherein the bed is A support structure for supporting the upper surface, wherein the means for generating the predetermined acupressure pattern includes a substrate provided movably in the horizontal direction with respect to the support structure, and the substrate in the horizontal direction at a predetermined speed. A driving means for reciprocating movement, wherein the surface of the substrate is a curved surface having a predetermined longitudinal cross-sectional profile, and lower end portions of the plurality of push rods respectively contact the surface of the substrate, The holding structure is provided with a bottom plate portion provided in parallel with the installation surface of the bed, and a lower plate portion provided parallel to and separated from the bottom plate, and provided below the upper surface and separated from the upper surface, A guide means for guiding the substrate in the longitudinal direction of the bed is provided on the lower plate portion.

A first piston slidably provided in a cylinder slidably fixed in a cylinder fixed vertically to the upper surface and the lower plate portion; A second piston slidably disposed on the first piston and coaxial with the first piston, the second piston being connected to the first piston via a buffer means, and the guide means being parallel to each other on the bottom plate portion. And a pair of rail means extending in the longitudinal direction of the bottom plate portion, and an engaging member provided on the back surface of the substrate and engaging with the rail means, wherein the predetermined finger pressure pattern causes 1 / f fluctuation. It is preferred that

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A multi-point load supporting bed (hereinafter simply referred to as "bed") of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a perspective view showing an example of a bed according to an embodiment of the present invention, FIG. 2 is an explanatory view showing a bottom plate portion and a substrate of the bed of FIG. 1, and FIG. 3 is a substrate of the bed of FIG. 4, FIG. 4 is a perspective view showing the substrate of the bed of FIG. 1, FIG. 5 is a cross-sectional view of the substrate of the bed of FIG. 1, and FIG. 6 shows the relationship between the support structure and the substrate of the bed of FIG. Illustrated cross-sectional explanatory view, FIG.
FIG. 8 is an explanatory view showing the concept of the bed driving means of FIG. 1, FIG. 8 is an explanatory view showing the operation state of the driving means of FIG. 7, and FIG. 9 is a sectional explanatory view showing an example of the bed driving means of FIG. 10 is a sectional explanatory view showing another example of the bed driving means in FIG.
1 (a) is a sectional explanatory view showing still another example of the bed driving means of FIG. 1, FIG. 11 (b) is a bottom view of FIG. 11 (a),
FIG. 12 is a cross-sectional explanatory view showing still another example of the bed driving means of FIG. 1, FIG. 13 is a bottom view of the driving means of FIG.
4 is a graph showing an example of the movement of 1 / f fluctuation.

Referring to FIG. 1, a bed 50 according to the present embodiment includes a support structure 60.

The support structure 60 includes a bottom plate portion 56 provided in parallel with the bed installation surface such as a floor, a lower plate portion 57 spaced apart from and parallel to the bottom plate portion 56, and a lower plate portion 57. The upper surface 55 of the bed is separated from the upper surface 57 and is provided in parallel with the lower plate portion 5.
7 and is provided in parallel with the lower plate portion 57 (see FIG. 6).

A plurality of push rods 70 are provided movably in the vertical and horizontal directions of the upper surface 55 of the bed, respectively, in the vertical direction with respect to the upper surface 55. In the present embodiment,
The number of push rods 70 can be arbitrarily selected. For example, as shown in FIG. 1, the left side area 55L and the right side area 50R of the bed upper surface 55 each have 20
And seven in the horizontal direction can be provided in a staggered manner.

Referring to FIG. 6, a push rod 7 according to the present embodiment is shown.
Reference numeral 0 denotes a first piston 70a slidably provided on the inner surface of a cylinder 80 fixed vertically to the upper surface 55 and the lower plate portion 57, and a first piston 70a slidably provided on the inner surface of the cylinder 80. The second piston 72 provided coaxially and connected to the first piston 71 via the buffering means 90
Consists of The material of the push rod 70 and a support structure described later is selected from materials having good availability and workability, such as wood, synthetic resin, and metal, but is not limited thereto. The cylinder 80 functions as a guide hole for the push rod 70, and is preferably made of wood, synthetic resin, or light metal.

An upper portion of the first piston 71 is provided with a projection 71a having a hemispherical surface which comes into contact with the body, and a lower portion is provided with a recess 71b.

In the case of the present embodiment, the buffering means 90 is provided with a contact portion 90a nested in the recess 71b and a compression provided between one end of the contact portion 90a and the bottom of the recess 71b. The other end of the contact portion 90a is in contact with the upper end 72a of the second piston 72.

In this embodiment, the second piston 72
A spherical portion 72c is rotatably provided at a lower end 72b of the first through a pin 72d.

Referring to FIGS. 1 to 5, a substrate 100 is provided in a space between the bottom plate portion 56 and the lower plate portion 57 in parallel with the bottom plate portion 56. The substrate 100 is guided movably in the longitudinal direction with respect to the bottom plate portion 56 via the guide means 110 (see FIGS. 1 and 6).

In the case of this embodiment, the guide means 110
Are two rail means 110a parallel to each other and extending in the longitudinal direction of the bottom plate portion 56 on the bottom plate portion 56;
And an engagement member 110b that engages with the rail means 110a (see FIG. 2).

The substrate 100 functions as a means for generating a predetermined acupressure pattern on the push rod 70 of the bed according to the present invention.

In the present embodiment, the substrate 100 has a pattern having a longitudinal cross-sectional profile P shown in FIG. 4 and a cross-sectional profile P2 shown in FIG. 5 which matches the shape of the back of the human body B. P is formed.

If the displacement is S, the motion of the 1 / f fluctuation is given by equation (1).

[0023]

(Equation 1)

Where A is the amplitude, n is the order, θ is the angle, and φ ₁ is the phase angle. For example,
When A = 1, n = 5, θ = 1 ° to 360 °, and φ ₁ = 0,

[0025]

(Equation 2)

The graph shown in FIG. 14 is obtained as a motion pattern of "1 / f fluctuation".

In the present embodiment, the ridge lines L of the pattern P on the substrate 100 are parallel to each other and inclined by α ° with respect to the horizontal line (see FIG. 3). In the present embodiment, α ° is about 1
5 °. The first height H1 of the cross section of the pattern P is about 30 mm, and the second height H2 is 20 mm (FIG. 5).
reference). However, the invention is not limited to the pattern shapes as shown in FIGS. The spherical surface 72c provided on the outer surface of the substrate 100 on which the pattern P is formed and the lower end 72b of the second piston 72 described above.
Touches. Therefore, when the substrate 100 reciprocates in the horizontal direction, the push rod 70 reciprocates in the vertical direction.

Referring to FIG. 2, the driving means 120 for horizontally reciprocating the substrate 100 of the bed at a predetermined speed according to the present invention includes an electric motor 120a and an output shaft of the electric motor 120a (not shown). ) Is fixed to the substrate 100 and a feed screw (male screw) 120b
It is composed of the feed screw 120b and a female screw 120c that engages.

In this embodiment, the electric motor 120
For example, when the electric motor is a three-phase AC motor, switching between forward rotation and reverse rotation of a is performed by using a timer in connection between the U, V, and W phases of the motor and the R, S, and T phases of the AC power supply. Needless to say, this is performed by exchanging the two phases every predetermined time.

However, the drive means 120 of the present invention is not limited to such a configuration. For example, as shown in FIGS. 7 and 8, a first gear W1 connected to an output shaft A of an electric motor 120a can be used. A second gear W2 meshing with the first gear W1 and one end of the second gear W2 are swingably connected to the eccentric position of the second gear W2, and the other end is swingably mounted on the back side of the substrate 100 via a mounting bracket M. Link 130
It can also be composed of With such a configuration, there is an advantage that the substrate 100 can reciprocate in the horizontal direction without using any electric control mechanism.

In the case of a driving mechanism as shown in FIGS. 9, 10, 11, 12 and 13, the rotation axis of the electric motor 120a extends in a direction perpendicular to the substrate 100 and is fixed to this rotation axis. The small gear W1 and the large gear W2 meshing with the small gear W1 are both provided in a plane parallel to the surface of the substrate 100. With this configuration,
Even when the space between the substrate 100 and the floor is small, there is an advantage that the driving mechanism can be incorporated in the bed.

In the case of the drive mechanism shown in FIG.
One end of 30 is attached to the large gear W2 via a spherical bearing S, and the other end of the link 130 is also attached to the substrate 100 via the spherical bearing S. Therefore, the bed can be tilted, raised, or lowered while the electric motor 120a, the small gear W1, and the large gear W2 are fixed at predetermined positions.

Further, in the case of the drive mechanism shown in FIG. 11, the length of the member 140 can be made shorter than that of the above-mentioned link 130, so that it can be suitably adopted when the space for mounting the drive mechanism is narrow.

In addition, the hydraulic pump is driven by using the rotating force of the electric motor, and the substrate 100
Can be moved back and forth.

Further, in the case of the bed of the present invention, the push rod can be moved up and down in any acupressure pattern.

For example, if the vertical sectional shape (profile) of the substrate surface is as shown in FIG. 14, the push rod can be moved in a 1 / f fluctuation pattern. Further, if the surface shape of the substrate is created by sampling the acupressure pattern of a skilled masseur, the push rod can be moved up and down in a pattern close to the acupressure pattern of the masseur. Further, in order to prevent bedridden of bedridden person, the push rod can be moved up and down in a finger pressure pattern which moves up and down only the peripheral portion thereof so as to reduce the pressure of the portion where the bedsore is likely to occur.

[0037]

According to the present invention, since a plurality of push rods can be moved up and down in any pattern that is comfortable for the body, a comfortable massage effect can be given to the whole body and a local part of the body can be provided. Can also stimulate.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an example of a bed according to an embodiment of the present invention.

FIG. 2 is an explanatory view showing a bottom plate portion and a substrate of the bed of FIG. 1;

FIG. 3 is a top view showing a substrate of the bed of FIG. 1;

FIG. 4 is a perspective view showing a substrate of the bed of FIG. 1;

FIG. 5 is a cross-sectional view of the substrate of the bed of FIG. 1;

6 is an explanatory sectional view showing a relationship between a support structure of the bed of FIG. 1 and a substrate.

FIG. 7 is an explanatory view showing the concept of the driving means of the bed of FIG. 1;

FIG. 8 is an explanatory diagram showing an operation state of the driving means of FIG. 7;

FIG. 9 is an explanatory sectional view showing an example of a driving means of the bed of FIG. 1;

FIG. 10 is an explanatory sectional view showing another example of the driving means of the bed of FIG. 1;

FIG. 11 is an explanatory view showing still another example of the bed driving means of FIG. 1;

FIG. 12 is an explanatory sectional view showing still another example of the bed driving means of FIG. 1;

FIG. 13 is a bottom view of the driving means of FIG.

FIG. 14 is a graph showing an example of a 1 / f fluctuation movement.

[Explanation of symbols]

 50 Bed 55 Upper surface 56 Bottom plate portion 57 Lower plate portion 60 Support structure 70 Push rod 100 Substrate 110 Guide means 120 Driving means

Claims (2)

[Claims] 1. A multi-point load supporting bed for pressing a human body on a bed by a plurality of push bars arranged in a vertical direction and a horizontal direction on a bed upper surface and movably provided in a vertical direction. A multi-point load supporting bed comprising means for vertically moving said plurality of push rods at a predetermined displacement and a predetermined speed to generate a predetermined acupressure pattern, The bed is composed of a support structure supporting the upper surface, and the means for generating the predetermined acupressure pattern includes a substrate provided movably in a horizontal direction with respect to the support structure, and the substrate is horizontally moved at a predetermined speed. Driving means for reciprocating in a direction, wherein the surface of the substrate is a curved surface having a predetermined longitudinal cross-sectional profile, and lower end portions of the plurality of push rods respectively contact the surface of the substrate, The support structure includes a bottom plate portion provided in parallel with the bed installation surface, and a lower plate portion provided parallel to and separated from the bottom plate, and provided below the upper surface and separated from the upper surface. A multi-point load supporting bed provided with guide means for guiding the substrate in the longitudinal direction of the bed on the lower plate portion. A first piston slidably mounted in a cylinder slidably fixed in a cylinder vertically fixed to an upper surface and a lower plate portion; A second piston slidably disposed on the first piston and coaxial with the first piston, the second piston being connected to the first piston via a buffer means, and the guide means being parallel to each other on the bottom plate portion. And a pair of rail means extending in the longitudinal direction of the bottom plate portion, and an engaging member provided on the back surface of the substrate and engaging with the rail means, wherein the predetermined finger pressure pattern causes 1 / f fluctuation. The multi-point load supporting bed according to claim 1, wherein