JPH07354U - Bed with massage function - Google Patents

Abstract

(57) [Summary] [Objective] To obtain a bed having a massage function capable of receiving a massage due to vibration on the back while the bed is in use and capable of appropriately changing the frequency and the waveform of the vibration. A vibrating member having a weight whose center of gravity is located away from the axis of the shaft at the end of the rotary shaft is provided on the back surface of the back mattress support member pivotally supported on the bed frame. Further, it is possible to provide a plurality of weights provided at one end of the rotary shaft, and in this case, it is possible to provide them with a phase shifted with respect to the center of the rotary shaft.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a bed having a massage function capable of giving a massage effect due to fine vibration to the back of the user while using the bed.

[0002]

[Prior art]

 Conventionally, there is known a massager in which a vibrator is placed in the back of a chair to cause vibration in the back. This vibrator is an electromagnetic type, and its vibration frequency is determined by the frequency of the electric power used, and a frequency converter must be provided to change the vibration frequency, and the operating equipment tended to be complicated. .

Further, it is not known that a bed is vibrated to give a massage effect while it is sleeping.

[0004]

[Problems to be solved by the device]

 In view of the above points, the present invention provides a bed having a massaging function capable of receiving a massage due to vibration on the back while the bed is in use and capable of appropriately changing the frequency and the waveform of the vibration. The purpose is to

[0005]

[Means for Solving the Problems]

 A vibrating member, in which a weight having a center of gravity positioned away from the axis of the shaft is provided at the end of the rotating shaft, is provided on the back surface of the back mattress support member pivotably supported on the bed frame. Further, the weight provided at one end of the rotating shaft is a single weight or a plurality of weights, and the weights are provided with the phase shifted or not shifted with respect to the axis of the rotating shaft.

[0006]

[Action]

 When trying to obtain a massage effect, the rotation axis of the vibration member provided on the back surface of the bed is rotated. Since the center of gravity of the weight provided on the rotary shaft is located away from the center of the rotary shaft, centrifugal force is generated in the weight as the rotary shaft rotates, which causes the rotary shaft to vibrate. The vibration of the rotary shaft is transmitted to the back of the mattress support member via the rotary shaft support member such as a motor, and vibrates a person lying on the bed to give a massage effect.

The vibration of the vibrating member due to the rotation of the weight is one vibration per one rotation of the weight. The weights are provided at both ends of the rotating shaft, but if one weight is provided at each end and the phases are the same, the vibration will draw one sine curve. When there is a phase difference between the weights on both ends, the two weights draw two sine curves, and the resulting vibration is a waveform with both sine curves added. At this time, The peak has a high acute angle. It is also possible to provide a plurality of weights, for example, two weights at both ends with a 90 ° phase shift. In this case, one weight is provided on each side of the rotary shaft, and the latter weight is shifted. Similar to the example.

[0008]

【Example】

 An embodiment of the bed 1 having the massage function of the present invention will be described below with reference to the drawings.

The bed 1 in the illustrated example has a back mattress 2 and leg mattresses 3. The back mattress 2 is supported by a support member 5 pivotably supported at one end thereof on a frame 4. There is. The support member 5 is provided with a roll receiving plate 6, and the receiving plate 6 receives the roll 9 provided at the tip of the pair of swing arms 8 of the back mattress standing device 7. The swing arm 8 is swingably supported at its end portion by the frame 4, and stands up or falls down by a pressing member 10 such as a piston of a fluid cylinder or a forward / backward shaft that projects and retracts due to rotation of a motor. When the swing arm 8 stands up, the roll 9 at the tip thereof stands up against the support member 5 of the back mattress 2 while being in contact with and pressing the roll receiving plate 6.

A vibrating member 11 is provided on the back surface of the support member 5. The vibrating member 11 has a rotating shaft 13 of a motor 12 whose rotation speed can be easily changed, protruded on both sides of the motor 12, and a weight 14 is provided at an end of the rotating shaft 13. The motor 12 allows a person using the bed to operate from the bed.

The weight 14 may have a shape supported by an arm 15 as shown in FIGS. 2A and 2B, or may have a structure in which the arm and the weight are integrated as shown in FIG. 2C. It may have a shape, and the position of its center of gravity 16 is located off the axis 17 of the rotary shaft 13. As shown in FIG. 2A, the weights 14 are provided at both ends of the rotary shaft 13 one by one in the same phase or with different phases, and as shown in FIG. 2B, as an example, the phases are shifted by 90 °. Two may be provided.

Next, the operation of the bed 1 of the present invention will be described.

When the back mattress 2 of the bed 1 of the present invention is erected and used, the pressing member 10 of the back mattress standing member 7 is actuated to swing the swinging arm 8 so that the roll 9 at the tip thereof is rolled. By running along the backing plate 6, the supporting member of the back mattress 2 stands up. When the user stands up at an appropriate angle, the bed user lies on the back mattress 2 and rotates the motor 12 of the vibration member 11. The weight 14 is rotated by the rotation of the motor 12 via the rotating shaft 13, but when the weights are provided at both ends of the rotating shaft 13 one by one in the same phase, the supporting member for the back mattress 2 due to the rotation of the weight. The urging force in the direction orthogonal to 5 increases and decreases by drawing one sine curve. This urging force gives minute vibrations to the supporting member 5, which is transmitted to the body and produces a massage effect. The above frequency can be changed freely by controlling the rotation of the motor.

The weights provided one at each end of the rotary shaft 13 are shifted in phase, or the number of weights at the end of each rotary shaft is increased, and two weights are provided with the phases shifted by 90 °. Then, since the cycurve drawn by one of the weights is the same as the case of the above-mentioned only one weight, a curve obtained by adding the sine curves drawn by the two weights shifted by 90 ° is drawn. Therefore, the urging force on the support plate 5 increases or decreases. The added curve has a higher peak and is sharper than the curve drawn with one weight, and the impact on the body is strong and instantaneous. Therefore, even if the number of rotations of the motor 12 is increased, the peak of back and forth shock does not become unclear.

[0015]

[Effect of device]

 In the bed of the present invention, a vibrating member, which is provided with a weight at the end of the rotating shaft and whose center of gravity is located away from the axis of the shaft, is provided on the back surface of the back mattress support member pivotally supported on the bed frame. By rotating the rotating shaft, minute vibrations can be applied to the mattress support member to give a massage effect to the bed user.

The above-mentioned vibration can be changed regardless of the frequency of the electric power by simply changing the rotation speed of the rotary shaft. Therefore, a frequency converter or the like is not required, and the facility cost can be extremely reduced. It is possible.

Further, by appropriately selecting the number and phase of the weights provided at the end of the rotary shaft, it is possible to appropriately change the vibration waveform.

[Brief description of drawings]

FIG. 1 is a perspective view of a bed of the present invention.

FIG. 2 shows a vibrating member, A is a front view, and B and C are side views showing examples of weights.

[Explanation of symbols]

 1 bed 2 back mattress 4 bed frame 5 back mattress support member 11 vibration member 12 motor 13 rotating shaft 14 weight 16 center of gravity 17 axis center

Claims (4)

[Scope of utility model registration request] 1. A vibrating member having a weight having a center of gravity positioned away from the axis of the shaft at the end of the rotating shaft is provided on the back surface of the back mattress support member pivotally supported on the bed frame. A bed with a massage function. 2. The bed having a massage function according to claim 1, wherein the weight provided at one end of the rotary shaft is a single weight, and the weight is provided in phase with the center of the rotary shaft. 3. The bed having a massage function according to claim 1, wherein the weight provided at one end of the rotary shaft is a single weight, and the weight is provided with a phase shifted with respect to the center of the rotary shaft. 4. The bed having a massage function according to claim 1, wherein a plurality of weights are provided at one end of the rotary shaft, and the weights are provided so as to be out of phase with respect to the center of the rotary shaft.