JP2010220952A - Bed equipped with vibration generator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a bed preventing trouble such as a fall in the service life of a vibration generator or its damage by suppressing the generation of bending stress to a vibrating plate and a floor frame even when a user stands up on the bed, kneels down or jumps up and down. <P>SOLUTION: The bed 1 is composed of the vibration generator 10 including a vibrator 11 and a vibrating plate 13 fastened to the vibrator 11 by bolts 12; and a mattress 20 including a bottom 21 formed of urethane, and a spacer 24 having a recess 22 for enclosing the vibrator 11, and an upper face part 23 for placing the vibrating plate 13, and suitable for the bottom 21 and formed of urethane. When external force is applied to the vibrating plate 13, the spacer 24 moves independently of the bottom 21, and the vibrating plate 13 follows the spacer 24. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a bed that includes a vibration generator and promotes sleep of a user.

  As a conventional bed, a continuous micro-vibration generator that generates continuous micro-vibration and an intermittent single-vibration generator that generates single-shot vibration that repeats at a substantially constant cycle are provided on a diaphragm provided on the bed The thing is known (for example, refer patent document 1).

  In addition, a bed floor on which a user hesitates is known to include a floor frame that swings left and right around a swing center axis that passes through the head in the vertical direction (see, for example, Patent Document 2). .

Japanese Patent Laid-Open No. 2004-24678 JP 2007-37832 A

  However, in the conventional bed, when the user stands on the bed, puts on the knee, jumps, bending stress acts on the diaphragm and the floor frame, and stress concentration occurs in a specific part of the vibration generator, There is a risk of troubles such as a decrease in the life of the vibration generator or damage.

  The present invention has been made in view of the above problems, and even when a user stands on a bed, puts on a knee, or jumps, it suppresses the bending stress from acting on the diaphragm and the floor frame, An object of the present invention is to provide a bed that prevents troubles such as a decrease in the life or damage of a vibration generator.

  According to a first aspect of the present invention, there is provided a vibration generator including a vibrator and a diaphragm fastened by a fastening member to the vibrator, a bottom formed of an elastic material, and the vibrator. A mattress including a storage portion and an upper surface portion on which the vibration plate is placed, the mattress including a spacer that is fitted to the bottom and formed of the elastic material, When an external force is applied, the spacer is displaced independently from the bottom, and the diaphragm follows the spacer.

  The second problem-solving means is configured such that a gap is provided between the spacer and the bottom so that the spacer can be displaced and the deformation of the spacer is limited.

  In a third problem solving means, the outer shape of the diaphragm is smaller than that of the upper surface portion.

  In the bed of the present invention, since the spacer is displaced independently from the bottom and the diaphragm follows the spacer, the generation of bending stress is suppressed even when an external force is applied to the diaphragm, and a specific part of the vibration generator (for example, The stress is prevented from concentrating on the fastening portion of the vibrator and the diaphragm, and the reliability of the vibration generator is improved.

  In addition, since a gap is provided between the spacer and the bottom so that the spacer can be displaced and restricts the deformation of the spacer more than a certain amount, it is possible to prevent the occurrence of friction that hinders the displacement of the spacer at the fitting portion between the spacer and the bottom. The spacer can be smoothly displaced. In addition, since the bottom fitting portion regulates deformation accompanying the displacement of the spacer, it is possible to suppress the deformation of the spacer more than a certain level, and a comfortable sleeping comfort can be maintained.

  Further, since the outer shape of the diaphragm is smaller than that of the upper surface portion, it is possible to prevent the bottom plate from being subjected to friction and catching when the diaphragm follows the spacer. In addition, end face processing (chamfering, R machining) for preventing friction and catching with the bottom is unnecessary on the outer surface of the diaphragm, and the manufacturing cost of the diaphragm can be reduced.

It is explanatory drawing which shows the structure of the bed provided with the vibration generator of this invention. It is explanatory drawing which shows the state of a diaphragm when external force acts on the bed of this invention. It is explanatory drawing which shows the state of a diaphragm when external force acts on the bed which does not have a spacer. It is explanatory drawing which shows the A section detail of FIG.

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

  FIG. 1 is an explanatory diagram showing the configuration of a bed 1 provided with a vibration generator 10 of the present invention. The bed 1 includes a vibration generator 10 and a mattress 20 that includes the vibration generator 10 inside.

  The vibration generator 10 includes a vibrator 11 that vibrates in the vertical direction, and an ABS resin diaphragm 13 fastened by the vibrator 11 and a bolt 12 (fastening member) (FIG. 2).

  The mattress 20 includes a bottom 21 formed of a urethane material (elastic material), a concave portion 22 (storage portion) that stores the vibrator 11, and an upper surface portion 23 on which the diaphragm 13 is placed. And a spacer 24 formed of a urethane material. A quilt layer 26 having a plurality of cylindrical elastic bodies 25 made of an elastic polymer material is placed on the bottom 21 and the diaphragm 13 to give a user appropriate vibrations.

  FIG. 2 is an explanatory diagram showing the state of the diaphragm 13 when an external force is applied to the bed 1 of the present invention. When an external force acts on the diaphragm 13 through the quilt layer 26 when the user stands on the bed 1, puts on a knee, or jumps, the diaphragm 13 is pushed downward in FIG. 2. An external force acts on the upper surface portion 23 on which the diaphragm 13 is placed, and the spacer 24 moves (displaces) downward independently of the bottom 21. At this time, since the diaphragm 13 follows the spacer 24 and moves downward while maintaining a substantially horizontal state, no bending stress is generated in the diaphragm 13. Therefore, no stress concentration occurs in the portion of the bolt 12 that fastens the vibrator 11 and the diaphragm 13.

  FIG. 3 is an explanatory diagram illustrating a state of the diaphragm 13a when an external force is applied to the bed 1a that does not include the spacer 24. FIG. When an external force acts on the diaphragm 13a through the quilt layer 26 when the user stands up on the bed 1a, puts on a knee, jumps or jumps, the diaphragm 13a at the portion where the external force is applied is pushed downward in FIG. . At this time, since the amount of downward movement of the diaphragm 13a is different between the portion where the external force is applied and the portion where the external force is not applied, the diaphragm 13a is inclined. At this time, a bending stress is generated in the diaphragm 13a. Bending stress and reaction force from the quilt layer 26 act on the bolt 12 that fastens the vibrator 11 and the diaphragm 13a, causing stress concentration and causing damage to the bolt 12.

  FIG. 4 is an explanatory diagram showing the details of part A of FIG. Between the spacer 24 and the bottom 21, the spacer 24 can move downward, and a gap S of 5 mm to 10 mm is provided on one side for restricting deformation of the spacer 24 beyond a certain level. Further, the outer dimension Dt of the diaphragm 13 is smaller than the outer dimension Ds of the upper surface portion 23 of the spacer 24.

  In the bed 1 of the present invention, the spacer 24 moves (displaces) independently from the bottom 21, and the diaphragm 13 follows the spacer 24. Therefore, even if an external force is applied to the diaphragm 13, bending stress is suppressed, and vibration is generated. It is possible to prevent stress concentration from occurring in the bolt 12 of the generator 10 and improve the reliability of the vibration generator 10.

  In addition, since a gap S is provided between the spacer 24 and the bottom 21 so that the spacer 24 can move and restricts deformation of the spacer 24, friction that hinders the movement of the spacer 24 at the fitting portion 27 of the spacer 24 and the bottom 21 is provided. Can be prevented, and the spacer 24 can be moved smoothly. Moreover, since the inner diameter part 29 of the bottom 21 which is the fitting part 27 of the bottom restrict | limits the deformation | transformation of the spacer 24 more than fixed, comfortable sleeping comfort can be maintained.

  Further, since the outer dimension Dt of the diaphragm 13 is smaller than the outer dimension Ds of the upper surface part 23, when the diaphragm 13 follows the spacer 24, friction and catching with the inner diameter part 28 which is the fitting part 27 of the bottom 21. Can be prevented. Further, the end face treatment (chamfering, R machining) for preventing friction and catching with the bottom 21 is not required on the outer surface 14 of the diaphragm 13, and the manufacturing cost of the diaphragm 13 can be reduced.

1 bed 10 vibration generator 11 vibrator 12 bolt (fastening member)
13 Diaphragm 20 Mattress 21 Bottom 22 Recessed part (storage part)
24 Spacer

Claims (3)

A vibration generator comprising: a vibrator; and a diaphragm fastened by the vibrator and a fastening member;
A mattress comprising: a bottom formed of an elastic material; a storage portion that stores the vibrator; and an upper surface portion on which the diaphragm is placed; and a spacer that is fitted to the bottom and formed from the elastic material. A bed composed of
The bed is characterized in that when an external force is applied to the diaphragm, the spacer is displaced independently from the bottom, and the diaphragm follows the spacer. The bed according to claim 1, wherein a gap is provided between the spacer and the bottom so that the spacer can be displaced and restricts deformation of the spacer. The bed according to claim 1, wherein an outer shape of the diaphragm is smaller than the upper surface portion.

Images