JP2010082127A - Vibration generation device for bed - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a vibration generation device for a bed allowing a user to feel vibration even when the user lies down on his/her side or the body types of the users are different, and preventing the resonance of a vibration generation means. <P>SOLUTION: The vibration generation device 10 to be placed and held in the bed 1 and giving the vibration to the user 6 includes: a vibration plate 20 for giving the vibration to the user 6; two vibrators 30 arranged in the vibration plate 20 and vibrating in the vertical direction of the bed in the same phase; and four resonance prevention holes 24 arranged in the vibration plate 20 between the vibrators 30 and preventing the resonance of the vibration plate 20. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a vibration generator provided in a bed.

  As a conventional bed, the bed floor is provided with a floor frame, and this floor frame is provided with a front receiving part that supports the user's head and torso and a rear receiving part that supports the user's legs. The front receiving part has an elastic body supported on the floor frame so that the vibration of the floor frame is buffered and absorbed by the elastic body, and the rear receiving part is interposed on the floor frame with a cushioning material. The vibration member is provided with vibration generating means for imparting vibration to the vibration member, and the vibration of the vibration generating means is transmitted to the rear receiving part, but to the front receiving part. Some are made difficult to be transmitted (see, for example, Patent Document 1).

In addition, a person lying on the bed plays a high-frequency band music or sound through a speaker and listens to it, and a low-frequency band sound that cannot be reproduced by the speaker is reproduced as vibration by a vibration generator. There is a bed that gives a relaxing effect by stimulating and feeling with the body (see, for example, Patent Document 2).
JP 2007-37832 A JP 2000-2333025 A

  However, the conventional technology assumes a case where the user is supine, and there is a problem that the target vibration cannot be felt depending on the side of the user or the difference in the physique of the user. Further, depending on the frequency band of vibration of the vibration generating means, there is a problem that the user feels uncomfortable due to resonance.

  The present invention has been made in view of the above problems, and a vibration generator for a bed that suppresses the resonance of the vibration generating means when vibration is felt when the user crawls or due to a difference in the physique of the user. The purpose is to provide.

  In order to solve the above-mentioned problem, the invention according to claim 1 is a vibration generating device that is placed in a bed and applies vibration to a user, and the vibration generating device is a vibration plate that applies vibration to the user. And at least two or more vibrators provided on the diaphragm that vibrate in the same direction with the same phase, and an opening provided on the diaphragm between the vibrators to suppress resonance of the diaphragm. Prepare.

  According to a second aspect of the present invention, the vibration generator is placed between a user's knee and heel.

  According to a third aspect of the present invention, at least two or more openings are provided at positions symmetrical with respect to the center of the diaphragm.

  In the first aspect of the invention, the vibration from the vibrator is transmitted to the diaphragm in the same phase, and the entire diaphragm vibrates in the same phase and in the same direction, which is sufficient for the entire diaphragm (range to be vibrated). Can transmit vibration. Therefore, the vibration can be felt even when the user is reluctant or due to a difference in physique. Further, since the diaphragm between the vibrators is provided with an opening for suppressing the resonance of the diaphragm, it is possible to solve the problem of giving the user discomfort due to the resonance of the diaphragm.

  In the invention according to claim 2, since the vibration generating device is provided at a position between the knee and the heel of the user in the bed, the problem due to the difference in physique can be solved.

  Further, in the invention according to claim 3, since at least two openings are provided, the area where the user and the diaphragm overlap can be increased as compared with the case where only one opening is provided. Vibration can be provided to the user. Further, since the opening area can be increased, the effect of preventing resonance is great. Further, by providing the opening at a symmetrical position with respect to the center of the diaphragm, there is an effect of uniformly vibrating the entire diaphragm.

  The best mode for carrying out the present invention will be described below with reference to the drawings.

  FIG. 1 shows a bed 1 including a vibration generator 10 according to the present invention. FIG. 1 (a) is a front view of the bed 1 and a user 6 is in a side-armed state, and FIG. 1 (b) is a side view of the bed 1 Indicates a supine state. The bed 1 includes a bed main body 2, a headboard 3, a first mattress 4a, and a second mattress 4b, and a vibration generator 10 is provided below the second mattress 4b. The vibration generator 10 is placed between the knee 7 and the heel 8 of the user 6. The vibration generator 10 is in a position where it cannot be seen by the user 6 in a normal use state of the bed 1.

  FIG. 2 is an exploded perspective view showing a state where the vibration plate 20 of the vibration generator 10 is attached to the first mattress 4a. Two attachment holes 5 are provided in the first mattress 4a, and the vibrator 30 (FIG. 3) is fitted therein. A slit 9 is provided in the bed main body 2, and functions to prevent disconnection and noise generation of the cable 32 (FIG. 3) that supplies power to the vibrator 30.

  FIG. 3 is an exploded perspective view of the vibration generator 10. The vibration generator 10 includes a diaphragm 20 and two vibrators 30.

  The diaphragm 20 is made of an ABS resin material, and is provided with a flange 22 having a nut 21 for attaching the vibrator 30. Between the flanges 22 to which the vibrators 30 are attached, four resonance prevention holes 24 (openings) are provided at positions symmetrical to the center 23 of the diaphragm 20.

  The vibrator 30 is fixed to the flange 22 of the diaphragm 20 with three bolts 31. The bolt 31 is coated with a loosening prevention agent to prevent loosening due to vibration of the vibrator 30. The vibrator 30 is provided with a cable 32 and supplied with power from the outside. The two vibrators 30 vibrate in the vertical direction of the bed 1 in the same phase while being fixed to the flange 22.

  4A and 4B are explanatory views showing a sensory test of the arrangement of the vibration generator 10, where FIG. 4A is a front view of the bed 1 and the user 6 is in a side-armed state, and FIG. 4B is a side view of the bed 1 Indicates supine state. 6 subjects (4 males and 2 females) with different heights as the foot-ahead distance a (1485 mm to 1685 mm) from the headboard 3 to the transducer 30 and the foot width interval b (200 mm to 300 mm) of the transducer 30 Based on the above, the feeling of vibration was evaluated when the sleeping posture was supine and lateral.

Table 1 shows sensory test results. As a result of the sensory test, it was found that 95% of adults feel the vibration comfortably in the supine and scoliosis by setting the toe direction distance a to 1635 mm and the foot width interval b to 250 mm.

  In the present invention, the vibration from the vibrator 30 is transmitted to the diaphragm 20, and the entire diaphragm 20 vibrates in the vertical direction with the same phase, so that sufficient vibration can be transmitted within the range to be vibrated. Therefore, the vibration can be felt even when the user 6 is on the side or due to a difference in physique. Further, since the vibration plate 20 between the two vibrators 30 is provided with four resonance prevention holes 24 for preventing the vibration of the vibration plate 20, there is a problem of giving the user 6 a discomfort due to the resonance of the vibration plate 20. Can be solved.

  Moreover, since the vibration generator 10 is provided at a position between the knee 7 and the heel 8 of the user 6 in the bed 1, the problem due to the difference in physique can be solved.

  Moreover, since the four resonance prevention holes 24 are provided, the area where the user 6 and the diaphragm 20 overlap can be increased, and a lot of vibrations can be given to the user 6. Further, since the total opening area of the resonance prevention holes 24 can be increased, the effect of preventing resonance is also great. Further, by providing the resonance prevention hole 24 at a symmetrical position with respect to the center of the diaphragm 20, the entire diaphragm 20 is vibrated uniformly.

The bed which equips the inside with the vibration generator of the present invention, (a) is a front view of a bed, and a user is in a side position, (b) shows a side view of a bed and a user is in a supine state. It is a disassembled perspective view which shows the attachment state to the bed main body of the diaphragm of a vibration generator. It is a disassembled perspective view of a vibration generator. It is explanatory drawing which shows the sensory test of arrangement | positioning of a vibration generator, (a) is a front view of a bed, a user is in a sideward state, (b) is a side view of a bed, and a user is in a supine state.

Explanation of symbols

1 bed 10 vibration generator 20 diaphragm 24 resonance prevention hole (opening)
30 vibrator

Claims (3)

A vibration generator that is placed in a bed and applies vibration to a user,
The vibration generator is
A diaphragm that gives vibration to the user;
At least two or more vibrators provided on the diaphragm and vibrating in the same direction in the same phase;
An opening provided in the diaphragm between the vibrators to suppress resonance of the diaphragm;
A vibration generator characterized by comprising: The vibration generator according to claim 1, wherein the vibration generator is placed between a user's knee and a heel. 3. The vibration generating device according to claim 1, wherein at least two of the openings are provided at positions symmetrical with respect to a center of the diaphragm.

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