JPH02277410A - Furniture for relaxation - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the invention] (Industrial field of application) The present invention relates to resting furniture such as beds, sofa-beds or chairs.

(Prior Art) For example, there are various types of beds, one of which is a bed frame formed in the shape of a rectangular frame with a plurality of plate-like bodies installed along the width direction. be.

In a bed having such a structure, both ends of the plate-like body are supported by springs, respectively, in order to improve cushioning properties.

However, when a user lies on their back on a plate-shaped body supported by a spring and the spring is compressed by its weight, the reaction force acts on the user, so the user's body is strongly compressed by the spring. , the comfort of sleeping may decrease. In particular, heavy parts of the user's body, such as the buttocks, compress the spring to a large degree, so the reaction force is also large.
The feeling of pressure becomes stronger.

Further, the spring supporting the plate-shaped body inevitably vibrates at a high frequency when subjected to a load, and furthermore, it takes a considerable amount of time for the vibration to be attenuated. Therefore, if the load applied to the plate-like body changes as the user turns over in bed, the high-frequency vibrations of the springs that support the plate-like body continue for a long time, which also reduces sleeping comfort. There were times when I would do that.

On the other hand, waterbeds are known in which water is sealed in a mattress as a bed that supports the user along the body shape and evenly distributes body pressure to improve sleeping comfort.

However, since waterbeds require a large amount of water, there is concern in the event that the pine tress should be damaged.Also, the body is in close contact with the pine tress, resulting in poor ventilation, and the water inside the pine tress may flow in waves. Traveling may cause users to experience discomfort similar to seasickness.

(Problem to be solved by the invention WrJ) As described above, in the conventional bed in which a plate-like body is supported by a spring along the width direction of the bed frame, the reaction force of the spring compressed by the load is applied to the user. The high-frequency vibrations of the springs continue for a long time due to changes in the load applied to the plate-shaped body, and this can reduce the comfort of sleeping. Also, according to Waterbed, the amount of water used was high, and the water moving like waves inside the pine tress caused users to experience discomfort similar to seasickness.

This invention was made based on the above circumstances, and its purpose is to prevent the reaction force from acting on the user even when the plate-shaped body receives a load, and to prevent the load from fluctuating. To provide a piece of furniture for resting that can support the above-mentioned plate-like body in a manner that prevents it from vibrating even when the body is in a water bed, and provides good comfort without using a large amount of water like a water bed.

[Structure of the Invention] (Means and Effects for Solving the Problems) In order to solve the above problems, the present invention includes a base, and a plurality of bases arranged in a row on the base with their axes substantially perpendicular and at predetermined intervals. a cylinder, a pair of arms whose midpoints are pivotally connected to the piston rods of each cylinder, a first connecting means that rotatably and slidably connects one end of these arms to the base, and a pair of arms with both ends pivotably connected to the base, a plate-shaped body rotatably and slidably connected to the other end of the arm by a second connecting means and installed between the other ends of each pair of arms;
Fluid control means is provided for supplying fluid to each of the cylinders and for causing fluid to flow in and out of the cylinders in accordance with the load applied to the piston rod via the plate-shaped body and the pair of arms.

With this configuration, fluid flows out from the loaded cylinder, reducing the reaction force applied to the user, and compared to using a coil spring, the fluid flows and receives the load. The vibration frequency is reduced and damped in a short time, and furthermore, the amount of fluid used can be reduced.

(Example) An embodiment of the present invention will be described below with reference to the drawings.

A bed 1 as a resting furniture shown in FIG. 2 includes a base 2. This base 2 is composed of side members 4 arranged in parallel on both sides of a central member 3, and each of these members 3.4
Both ends are connected by connecting members 5, respectively.

A plurality of cylinders 6 are arranged at predetermined intervals on the central member 3,
Moreover, they are arranged in a line with their axes substantially perpendicular. A U-shaped connector 8 is attached to the end of the piston rod 7 projecting from each cylinder 6, as shown in FIG. A midway portion of the first arm 9 is pivotally connected to the connector 8 by a first connecting pin 11 . The middle part of the first arm 9 is made up of a pair of band-shaped plates 9b connecting a rectangular hollow vibrator 9a, and an insertion part 12 is formed by the pair of band-shaped plates 9b. This insertion portion 12 has a second
The arm 13 is inserted, and the middle part thereof is connected to the first arm 9.
Similarly, it is pivotally connected to the connector 8 by a first connecting pin 11.

As shown in FIG. 1, a second connecting pin 14 is protruded from one end of the first and second arms 9.13, and these second connecting pins 14 are connected to the upper surface of the side member 4 of the base 2. It is slidably and rotatably engaged with a long hole 16 of a first support member 15 fixed to the first support member 15 . Further, a band-shaped first plate member 17 is installed at the other ends of the first and second arms 9.13. That is, the second support members 19 having elongated holes 18 are fixed to the lower surfaces of both ends of the first plate-like body 17, and the elongated holes 18 of the second support members 19 are provided with the respective arms. A third connecting bin 21 protruding from the other end of 9.13 is slidably and rotatably connected. Therefore, when the piston rod 7 of the cylinder 6 is urged in the protruding direction as shown by the chain line from the state shown by the solid line in FIG. At the same time, the third connecting pin 21 provided at the other end of each arm 9.13 also slides through the elongated hole 18 of the second support member 19 in the direction shown by the arrow. Thereby, the first arm 9
Since the second arm 13 rotates as shown by the chain line using the midway part connected to the connector 8 as a fulcrum, the first plate-shaped body 17 installed between the other ends of these arms 9 and 13 is The vehicle will rise from the L-ri position to the L2 position (ascent limit).

As shown in FIG. 2, second plate-like bodies 22 are disposed between the plate-like bodies 17 of each node 1. As shown in FIG.

Both ends of the first plate-like body 17 and the second plate-like body 22 are connected by a waving band 23 made of flexible cloth or the like.

Therefore, the second plate-like body 22 can swing freely in the width direction while deforming the waving band 23. That is, as shown in FIG.
7.22 When the user U lies down on a thin sheet (not shown) or the like, the second plate-like body 22 swings in the width direction according to the uneven shape of the user U's back surface.

Each cylinder 6 is connected to a hydraulic circuit 24 as shown in FIG.
It is connected to the. That is, in the figure, 25 is a pump whose suction side communicates with the tank 26, and the discharge side of this pump 25 communicates with the first pipe line 271; therefore, the lower end of each cylinder 6. One end side of a second pipe line 28 is connected to the upper end of each cylinder 6, and this second pipe line 28
The other end communicates with the tank 26. therefore,
When the pump 25 operates and the oil in the tank 26 is supplied to each cylinder 6 from the first conduit 27, the piston rod 7 is urged in the upward direction. At this time, the oil discharged from the upper part of the cylinder 6 flows into the tank 26 through the second pipe line 28.

A first bypass pipe 29 and a second bypass pipe 31 are connected in parallel between the first pipe line 27 and the second pipe line 28. The first bypass pipe 29 is provided with a pressure reducing valve 32, and the second bypass pipe 31 is provided with a control valve 33 and a flow rate regulating valve 34 in series. The control valve 33 is a manual type, and in the non-operating state shown in FIG.
7 and the second conduit 28, and when activated, the above-mentioned conduits 27 and 28 are brought into communication.

In the bed configured in this way, when the user U lies down on the first and second plate-shaped bodies 17.22 as shown in FIG. The protruding port of the piston rod 7 of No. 6 is in a predetermined state (the first,
After oil is supplied to each cylinder 6 until the second plate-shaped body 17.22 reaches the height indicated by L2 in FIG. Switch to the sliding open state where the At this time, if too much oil is supplied,
When the pressure of the oil in the first pipeline 27 increases, the oil passes through the pressure reducing valve 32 provided in the first bypass pipe 29 and returns to the tank 26, so the pressure in the first pipeline 27 increases. This will prevent you from overdoing it.

In this way, when the user U lies supine on the first and second plate-shaped bodies 17.22 with oil supplied to each cylinder 6, the oil is applied to heavy parts such as the back S and buttocks d of the user U. This area will receive a larger load than other parts. The first and second arms 9.13 connected to the first plate-shaped body 17 in the portion receiving a large load rotate from the state shown by the chain line in FIG. 1 in the direction of collapse as shown by the solid line. from,
As a result, the first plate-shaped body 17 is displaced downward, and the piston rod 7 of the cylinder 6, which pivotally supports the intermediate portions of these arms 9 and 13, is urged in the retracting direction.

In this way, when the piston rod 7 is urged in the retracting direction, the oil in these cylinders 6 flows out to the first pipe line 27. Since the oil flowing into the first pipe line 27 passes through the control valve 33 and the flow rate adjustment valve 34 and returns gently to the tank 26, each piston rod 7 is smoothly displaced according to the uneven shape of the back surface of the user U. , thereby elastically absorbing the load applied to each first plate-like body 17. If the control valve 33 is closed while the first plate-shaped body 17 is displaced to some extent along the back of the user U, the oil is prevented from returning to the tank 26. Therefore, when the user U moves his body in this state, oil will flow out from the cylinder 6 corresponding to the heavier part of the body and flow into the cylinder 6 corresponding to the lighter part. plate-shaped body 17
is a height that follows the uneven shape of the user U's back surface. At this time, since the piston rod 7 of each cylinder 6 does not generate a reaction force, heavy parts of the user U, such as the buttocks d and the back S, are not strongly pressed.

Furthermore, by changing the timing at which the control valve 33 is closed after the user U lies on his or her back, the amount of displacement of the first plate-shaped body 17 can be adjusted. That is, if the control valve 33 is closed at a relatively early stage, the change in the unevenness of the first plate-shaped body 17 can be reduced, and if it is closed at a late stage, the change in the unevenness can be increased.

Also, the piston rod 7 is displaced by the flow of oil.
Because the oil is incompressible and flows against flow resistance, it is displaced slowly, so it does not cause high frequency vibrations like a coil spring. Therefore, user U rarely feels discomfort due to vibrations.

In addition, unlike conventional waterbeds, there is no shaking due to fluid flow, so a comfortable sleeping experience can be achieved.

Further, the first plate-shaped body 15 whose both ends are supported by the first arm 9 and the second arm 13 has substantially the same amount of displacement between one end and the other end.

Therefore, even if the user U turns over and is positioned on one end side of the first plate-like body 17, the first plate-like body 17
There is no possibility that the supporting state of the user U becomes unstable due to the tilting of the support member.

In the above embodiment, oil is used as the fluid, but other liquids, gases, etc. may be used. In addition to the bed, the resting furniture may be a sofa-bed, a sofa, or the like.

[Effects of the Invention] As described above, according to the present invention, unlike a coil spring, a reaction force corresponding to the load is not generated in the cylinder that receives the load via the plate-shaped body and the arm. , users do not feel pressure on heavy parts of their bodies. Moreover,
Since the load is applied by the fluid flowing in the cylinder, it does not vibrate at a high frequency like a coil spring, but instead vibrates gently, which provides a good sleeping comfort. Furthermore, unlike conventional waterbeds, it is not necessary to use a large amount of liquid, and the liquid does not flow in waves and cause shaking.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention; FIG. 1 is a side view of the plate-like body in a supported state, FIG. 2 is a plan view with a portion of the bed omitted, and FIG. 3 is a connection between a pair of arms and a cylinder. FIG. 4 is a control circuit diagram for causing oil to flow in and out of the cylinder, and FIG. 5 is a side view of the user lying supine on the bed. 2... Base, 6... Cylinder, 9... First arm, 13... Second arm, 15... First support member (first connection means) 17... first plate-like body, 19
...Second support member (second connection means) 24...Hydraulic circuit (fluid control means) 33...Control valve (flow rate control means), 34...Flow rate adjustment valve (flow rate control means) .

Claims (1)

[Claims] a base; a plurality of cylinders arranged on the base in a line with their axes substantially perpendicular at predetermined intervals; a pair of arms whose midpoints are pivoted to the piston rods of each cylinder; and one end of these arms. a first connecting means rotatably and slidably connected to the base, and a first connecting means rotatably and slidably connected to the base, and a second connecting means rotatably and slidably connected at both ends to the other end of the arm, respectively. A plate-shaped body installed between the other ends supplies fluid to each of the cylinders, and causes fluid to flow in and out of the cylinder according to the load applied to the piston rod via the plate-shaped body and the pair of arms. 1. A piece of furniture for resting, characterized in that it is equipped with a fluid control means.