JP2007211352A - Body protector - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a body protector 2 excellent in wearing feeling, and designed so as to prevent a wearer from breaking his (her) bone when having a fall. <P>SOLUTION: The body protector 2 is provided with a shock-absorbing body 6. The shock-absorbing body 6 is provided with a porous body 16 having a deformation restoring property, a bag body 18 airtightly wrapping around the porous body 16, an air-intake means 20 taking air into the inside of the bag body 18, an exhaust means 22 exhausting the air to the outside of the bag body 18, and a partition 24 separating the air-intake means 20 from the porous body 16. The amount of the air taken into the bag body 18 per unit time is larger than that of the exhausted air to the outside of the bag body 18. In the body protector 2, the air-intake means preferably comprises an air-intake valve 20. The air-intake valve 20 is opened in an air-intake direction and closed in an air-exhausting direction. The air-intake valve 20 is placed on the inside of the partition. The outer edge 46 of the air-intake valve 20 and the inner surface 42 of the partition 24 are out of contact with each other. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a human body protector that mitigates the impact on a human during a fall.

  Along with the increase in the elderly population, the number of accidents in which elderly people fall and fractures is increasing. In particular, femoral neck fractures tend to increase. It takes time to completely cure the femoral neck fracture. There are also cases where elderly people are bedridden due to this femoral neck fracture. This femoral neck fracture is becoming a major social problem, and its prevention is strongly demanded.

  In order to prevent a femoral neck fracture, various protective devices have been proposed. For example, Japanese Patent Laid-Open No. 9-508824 discloses a hip protector having a dome-shaped member having a concave side surface so as to fit a body shape around a human femoral neck. The entire surface of the hip protector is made of a closed cell thermoplastic material such as rigid polypropylene foam and is formed as a dome-shaped hard shell.

  There is also a proposal of trousers in which a shell formed in a dome shape covers a portion corresponding to the femoral neck as in the above hip protector (Japanese Patent Publication No. 10-512016). This shell has flexibility defined by a flat direction compressive strength and a lateral direction compressive strength. Since the shell has a high rigidity, the protective effect against a large impact is greater than a hip protector made of only cushioning material.

An impact-absorbing pad made of an acrylic copolymer has been proposed for wearing clothes that can always be worn (Japanese Patent Laid-Open No. 9-268409). In this shock absorbing pad, consideration is given to the balance between the softness that does not cause a sense of incongruity and the shock absorbing function.
JP 9-508824 gazette Japanese National Patent Publication No. 10-512016 JP-A-9-268409

  Many femoral neck fractures are said to occur when getting out of bed. In the human body protector described in the above publication, the rigidity of the member that absorbs the impact is high, so that a human will feel a push-up feeling when turning over. This personal protective equipment is removed from the body at bedtime. Since this human body protector is inferior in wearing feeling, there is a problem that it is not always worn. With this human body protector, it is difficult to prevent femoral neck fractures in advance.

  The personal protective equipment that is considered to have a balance between the softness that does not cause a sense of incongruity and the shock absorbing function can be worn even at bedtime because the wearing feeling is enhanced. However, the shock absorption of this human body protector is not sufficient. In this human body protector, it is difficult to prevent a femoral neck fracture.

  An object of the present invention is to provide a human body protector that has an excellent wearing feeling and can prevent a fracture at the time of falling.

  The human body protector according to the present invention includes a buffer and a mounting body in which the buffer is accommodated. The buffer body includes a porous body having deformation restoring properties, a bag body that encloses the porous body in an airtight manner, an intake unit that sucks gas into the bag body, and an exhaust unit that discharges gas outside the bag body. And a partition for isolating the air intake means from the porous body. The amount of gas sucked into the bag body per unit time is larger than the amount of gas discharged outside the bag body per unit time.

  Preferably, in this human body protector, an intake valve is used as the intake means. The intake valve is opened in the intake direction and closed in the exhaust direction. The intake valve is disposed inside the partition. The outer edge of the intake valve and the inner surface of the partition are in a non-contact state.

  Preferably, in this human body protector, the partition is made of a ring. Preferably, in this human body protector, the partition is composed of a cap. Preferably, in this human body protector, the partition is made of a container.

  Preferably, in this human body protector, the exhaust means and the intake means are integrally formed.

  In this human body protector, the buffer body has a shape along the human body by gradually exhausting the gas from the exhaust means at bedtime. With this human body protector, there is no sense of incongruity due to wearing. This human body protector is excellent in wearing feeling. In this human body protector, since the air intake means is isolated from the porous body by the partition, the air intake means does not come into contact with the porous body. The opening / closing operation of the intake means is not hindered by the porous body. This human body protector can surely prevent a fracture during a fall.

  Hereinafter, the present invention will be described in detail based on preferred embodiments with appropriate reference to the drawings.

  FIG. 1A is a front view showing a use state of a human body protection device 2 according to an embodiment of the present invention, FIG. 1B is a side view thereof, and FIG. FIG. FIG. 1 shows a human 4 and a human body protector 2. The human body protector 2 includes a buffer body 6 and a mounting body 8 in which the buffer body 6 can be accommodated. The mounting body 8 includes a belt 10 that is wound around the person 4 and a buttocks 12 that are suspended from the belt 10. This buttocks pad 12 has a pair of left and right pockets 14. The pocket 14 accommodates the buffer body 6. In the human body protection device 2, the pocket 14 is disposed on the mounting body 8 so that the buffer body 6 is positioned immediately above the femoral neck.

  FIG. 2 is a partially cutaway perspective view showing the shock absorber 6 of the human body protector 2 of FIG. The planar shape of the buffer body 6 is a rectangle. The typical size of the buffer body 6 is 140 mm in length, 140 mm in width, and 20 mm in thickness.

  FIG. 3 is a cross-sectional view taken along line III-III in FIG. 4 is a cross-sectional view taken along line IV-IV in FIG. The buffer body 6 includes a porous body 16, a bag body 18, an intake valve 20 as an intake means, an exhaust valve 22 as an exhaust means, and a ring 24 as a partition.

  The porous body 16 is a polymer molded body. Although not shown, this porous body 16 has bubbles inside. In particular, the porous body 16 includes open cells. The porous body 16 is easily deformed by a load and immediately restored by removing the load. As shown in FIG. 3, the porous body 16 at the location where the ring 24 is disposed is recessed by being pressed by the ring 24. More preferably, the porous body 16 is formed in advance in a shape that takes into account the shape, size, and the like of the ring 24. The porous body 16 may be a polymer molded body having a plurality of bubbles and a passage through which these bubbles communicate.

  The bag body 18 is made of a synthetic resin film. The bag body 18 encloses the porous body 16 in an airtight manner. The bag body 18 includes a first attachment hole 26, a second attachment hole 28, and four vent holes 30. The vent holes 30 are arranged at equal intervals from the first mounting hole 26 at equal distances. In the human body protector 2, the bag body 18 and the porous body 16 are not joined. The bag 18 and the porous body 16 may be joined in consideration of the specifications of the human body protector 2.

  The intake valve 20 includes a support body 32 and an umbrella part 34 that expands radially around the support body 32. The umbrella part 34 can move up and down. The intake valve 20 is fixed to the bag body 18 by the support body 32 being fitted into the first mounting hole 26.

  The exhaust valve 22 includes a cylinder body 36 and an exhaust port 38 at the center of the cylinder body 36. The exhaust valve 22 is fixed to the bag body 18 by fitting the cylindrical body 36 into the second mounting hole 28. The interior and exterior of the buffer body 6 are connected via the exhaust port 38.

  FIG. 5 is a perspective view showing the ring 24 provided in the shock absorber 6 of FIG. 2. The ring 24 is made of a hard member. In the horizontal cross section of the ring 24, the outer surface 40 and the inner surface 42 of the ring 24 have a circular shape. The intake valve 20 is disposed inside the ring 24. The ring 24 is fixed to the inner surface 44 of the bag body 18. The shape and size of the ring 24 are appropriately determined in consideration of the specifications of the human body protector 2.

  The material of the ring 24 is preferably a synthetic polymer material. Examples of the synthetic polymer material include plastic materials and rubber materials. From the viewpoint of versatility and workability, a plastic material is preferable. Examples of the plastic material include polyvinyl chloride, polystyrene, polyethylene, polypropylene, polyacetal, polyurethane, and nylon. In the human body protection device 2, the ring 24 is made of hard polyvinyl chloride. The ring 24 is formed by injection molding. The ring 24 may be formed by cutting a pipe-shaped member into a predetermined length. This ring 24 may be formed by cutting a rod-shaped member.

  In the human body protector 2, the vent 30 is disposed on the inner side of the outer edge 46 of the umbrella portion 34. As described above, the umbrella portion 34 can move up and down. When the internal pressure of the buffer body 6 is equal to the atmospheric pressure, the umbrella portion 34 is located above, and the outer edge 46 is in contact with the inner surface 44 of the bag body 18. Even when the internal pressure of the buffer body 6 is higher than the atmospheric pressure, the contact between the outer edge 46 and the inner surface 44 can be maintained. The contact between the outer edge 46 and the inner surface 44 shields the gas flow through the vent 30. The umbrella part 34 functions as a seal. When the internal pressure of the buffer body 6 is lower than the atmospheric pressure, the umbrella portion 34 moves downward and the outer edge 46 is separated from the inner surface 44. Gas can be distributed through the vent 30. In the buffer 6, gas is sucked through the intake valve 20 when the internal pressure decreases. When the internal pressure of the buffer body 6 increases, the gas suction stops. The intake valve 20 is opened in the intake direction and closed in the exhaust direction. The intake valve 20 functions as a check valve. The amount of gas sucked into the buffer body 6 is controlled by adjusting the total cross-sectional area of the vent holes 30 provided in the buffer body 6. Note that the position and structure of the intake valve 20 are appropriately determined in consideration of the specifications of the human body protector 2.

  In the human body protection device 2, the gas inside the buffer body 6 is discharged to the outside of the buffer body 6 through the exhaust valve 22. By adjusting the total cross-sectional area of the exhaust port 38 provided in the buffer body 6, the amount of gas discharged to the outside of the buffer body 6 is controlled. The buffer body 6 is configured such that the total cross-sectional area of the exhaust port 38 is smaller than the total cross-sectional area of the vent hole 30. Therefore, in the human body protection device 2, the amount of gas sucked into the buffer body 6 per unit time is larger than the amount of gas discharged outside the buffer body 6 per unit time. Note that the position and structure of the exhaust valve 22 are appropriately determined in consideration of the specifications of the human body protector 2.

  When the person 4 wearing the human body protector 2 falls and the buffer body 6 is compressed, the internal pressure of the buffer body 6 increases. Since the amount of gas discharged to the outside of the buffer body 6 per unit time is small, the buffer body 6 maintains a state in which the internal pressure is increased. This buffer body 6 functions as an air spring, and relieves the impact on the human 4 when it falls.

  When the human 4 goes to sleep while wearing the human body protector 2, the weight of the human 4 is applied to the buffer body 6. Even in this case, since the buffer body 6 is compressed, the internal pressure of the buffer body 6 increases, and the gas is gradually discharged through the exhaust valve 22. Since the porous body 16 is easily deformed by the load while the gas is discharged, the buffer body 6 is deformed in accordance with the movement of the body at bedtime. This buffer body 6 does not give a strange feeling to the sleeping person 4. This human body protector 2 is excellent in a feeling of wearing.

  When the person 4 wearing the human body protector 2 wakes up, the load applied to the buffer body 6 is removed. The shape of the buffer body 6 that has been deformed by the compression is restored by the restoring force of the porous body 16. Due to compression deformation at bedtime, the amount of gas in the buffer 6 is reduced. In the process of restoring the shape of the buffer body 6, the volume of the buffer body 6 increases. Since the internal pressure of the buffer body 6 is lowered by the restoring force of the porous body 16, the intake valve 20 is opened, and gas is sucked into the buffer body 6 through the intake valve 20. As described above, since the amount of gas sucked into the buffer body 6 per unit time is large, the shape of the buffer body 6 is restored in a short time after the load is removed. A sufficient amount of gas is inhaled. Such a buffer 6 can prevent a fracture even when the human 4 falls immediately after getting up.

  In the human body protector 2, the inner diameter of the ring 24 is larger than the outer diameter of the intake valve 20. The inner surface 42 of the ring 24 and the outer edge 46 of the umbrella portion 34 are in a non-contact state. The ring 24 isolates the outer edge 46 from the porous body 16. Even if the porous body 16 is compressed and deformed by applying an impact, the porous body 16 and the outer edge 46 do not come into contact with each other. The opening / closing operation of the intake valve 20 is not hindered. This human body protector 2 can reliably prevent a fracture at the time of falling.

  In this human body protector 2, since the ring 24 is formed of a hard member, the ring 24 will not be deformed even when a person goes to sleep with the human body protector 2 attached. When the size of the ring 24 is increased, the feeling of wearing the human body protector 2 is hindered. For this reason, it is preferable to reduce the size of the ring 24 provided in the human body protector 2 in order to suppress a sense of discomfort at the time of wearing.

  In FIG. 3, the double arrow line WA represents the inner diameter of the ring 24. A double arrow line WB represents the outer diameter of the intake valve 20. A double arrow line HA represents the height of the ring 24. Point PA is a boundary between the support body 32 and the umbrella part 34 on the surface of the intake valve 20 on the porous body 16 side. A double arrow line HB represents the thickness of the support 32 at this point PA. The thickness HB is measured in a state where the intake valve 20 is removed from the bag body 18.

  In this human body protector 2, the difference between the inner diameter WA and the outer diameter WB is preferably not less than 0.5 mm and not more than 10.0 mm. By setting this difference to be 0.5 mm or more, the movement of the outer edge 46 is not hindered. In this human body protector 2, the intake valve 20 opens and closes reliably. In this respect, the difference is more preferably equal to or greater than 0.7 mm, and particularly preferably equal to or greater than 1.0 mm. When this difference is set to 10.0 mm or less, the uncomfortable feeling at the time of wearing is suppressed. In this respect, the difference is more preferably equal to or less than 9.0 mm, and particularly preferably equal to or less than 8.0 mm.

  In this human body protector 2, the ratio of the height HA to the thickness HB (HA / HB) is preferably 0.5 or more and 5.0 or less. By setting this ratio to 0.5 or more, the movement of the outer edge 46 is not hindered. In this human body protector 2, the intake valve 20 opens and closes reliably. In this respect, the ratio is more preferably equal to or greater than 0.8, and particularly preferably equal to or greater than 1.0. By setting this ratio to 5.0 or less, a sense of incongruity at the time of wearing can be suppressed. In this respect, the ratio is more preferably equal to or less than 3.0, and particularly preferably equal to or less than 2.0.

  The manufacturing method of this human body protector 2 is as follows. First, the bag body 18 and the porous body 16 accommodated in the bag body 18 are formed. The bag body 18 is formed with an insertion port into which the porous body 16 can be inserted. Next, a first attachment hole 26, a second attachment hole 28, and a vent hole 30 are formed by punching at predetermined locations of the bag body 18. Next, the intake valve 20 is attached to the first attachment hole 26. Next, the ring 24 is fixed to the inner surface 44 of the bag body 18 so that the intake valve 20 is disposed inside. A commercially available adhesive is used for this fixing. Next, the exhaust valve 22 is attached to the second attachment hole 28. Next, the porous body 16 is accommodated in the bag body 18 through the insertion port. Next, the insertion port is closed by heat welding. In this way, the buffer body 6 is formed. Finally, the buffer body 6 is accommodated in the mounting body 8 to complete the human body protector 2 shown in FIG. In addition, this human body protector 2 may be manufactured by another method.

  The bubbles of the porous body 16 are obtained by using chemical or physical treatment. For this treatment, a method using a volatile gas in the middle of a chemical reaction, a method using a foaming agent such as sodium hydrogen carbonate, azodicarbonamide, nitrosopentamethylenetetramine, and entrainment of gas by stirring are used. This method is exemplified. Explosive methods and elution methods are exemplified as suitable methods for forming open cells. In this explosion method, open cells are formed by rupturing the walls of the bubbles with a high-pressure gas. In this elution method, a block formed of a material mixed with calcium carbonate fine powder is immersed in an aqueous hydrochloric acid solution. By soaking in the hydrochloric acid aqueous solution, calcium carbonate mixed in the block is eluted. Opening bubbles are formed by the elution of the calcium carbonate.

  Examples of the base polymer of the porous body 16 include synthetic resin and rubber. Examples of the synthetic resin include polyurethane, polyester, polyamide, polyolefin, polystyrene, polyvinyl chloride, ethylene-vinyl acetate copolymer, silicone, and various thermoplastic elastomers. Examples of the rubber include natural rubber, polyisoprene, polybutadiene, butadiene-styrene copolymer, acrylonitrile-butadiene copolymer, and ethylene-propylene-diene copolymer. From the viewpoint of processability, polyurethane is preferred. Examples of the polyurethane include ester polyurethane and ether polyurethane. From the viewpoint of shape restoration, ether-based polyurethane is more preferable.

  Examples of the base polymer of the bag 18 include polyurethane, polyolefin, polyvinyl chloride, nylon, and polyester. Specific examples of the polyolefin include polyethylene and polypropylene. The bag 18 may be formed by laminating a plurality of films of different materials. In order to improve the airtightness of the bag body 18, an aluminum laminate film in which aluminum processed into a film shape is laminated may be used for the bag body 18.

  As the base rubber of the crosslinked rubber constituting the intake valve 20, acrylonitrile-butadiene rubber, hydrogenated acrylonitrile-butadiene rubber, silicone rubber, fluorosilicone rubber, ethylene-propylene-diene rubber, butyl rubber, fluorine rubber, isoprene rubber, epichlorohydrin Examples thereof include rubber, chloroprene rubber, urethane rubber, styrene-butadiene rubber and acrylic rubber. The intake valve 20 may be formed from a soft synthetic resin.

  Hereinafter, a method of measuring the gas discharge and suction speeds in the buffer body 6 will be described. First, a steel plate having a length of 140 mm, a width of 140 mm, and a thickness of 1.0 mm is placed on the flat surface 48 of the buffer body 6. Next, an 11 kg weight is placed on the steel plate. Then, the buffer body 6 is gradually deformed, and eventually the deformation stops. A time T1 from when the weight is placed until the deformation stops is measured. Next, the weight is lowered from the steel plate. Then, the buffer body 6 is gradually restored, and the restoration is eventually stopped. A time T2 from when the weight is lowered from the steel plate to when restoration is stopped is measured.

  From the viewpoint of preventing fracture, the time T1 is preferably 1.0 second or longer, and particularly preferably 2.0 seconds or longer. From the viewpoint of wearing comfort at bedtime, the time T1 is preferably 10.0 seconds or less, and particularly preferably 4.0 seconds or less. From the viewpoint that fractures can be prevented by a fall immediately after getting up, the time T2 is preferably less than 1.0 seconds, and particularly preferably 0.8 seconds or less. The time T2 is usually 0.01 seconds or longer.

  FIG. 6 is an enlarged cross-sectional view showing a part of a buffer body 52 provided in a human body protector 50 according to another embodiment of the present invention. The buffer body 52 includes a porous body 54, a bag body 56, an intake valve 58 as an intake means, an exhaust valve as an exhaust means, and a cap 60 as a partition. The human body protector 50 has the same configuration as the human body protector 2 of FIG. 1 except for the cap 60. In FIG. 6, this exhaust valve is not shown.

  FIG. 7 is a perspective view showing the cap 60 provided in the buffer body 52 of FIG. 6. The cap 60 is made of a hard member. The cap 60 includes a ring 62 and a lid 64. In the horizontal cross section of the ring 62, the outer surface 66 and the inner surface 68 of the ring 62 have a circular shape. The lid 64 closes one opening of the ring 62. The ring 62 and the lid 64 are integrally formed. The lid 64 includes four vent holes 70. The vent holes 70 are arranged at equal intervals at equal distances from the center of the cap 60. The sucked gas is introduced into the porous body 54 through the vent 70. The shape, size, and the like of the cap 60 are appropriately determined in consideration of the specifications of the human body protector 50. In the human body protector 50, the material of the cap 60 is polyvinyl chloride.

  In the human body protector 50, the intake valve 58 is disposed inside the cap 60. The cap 60 is disposed such that the lid 64 is located on the opposite side of the inner surface 72 of the bag body 56. The cap 60 is fixed to the inner surface 72 of the bag body 56. The cap 60 isolates the intake valve 58 from the porous body 54. The inner diameter of the ring 62 constituting the cap 60 is larger than the outer diameter of the umbrella portion 74 constituting the intake valve 58. The inner surface 68 of the ring 62 and the outer edge 76 of the umbrella portion 74 are in a non-contact state. In the human body protection device 50, since the cap 60 includes the lid 64, the porous body 54 and the outer edge 76 are not always in contact with each other. The opening / closing operation of the intake valve 58 can always be maintained. The human body protector 50 can reliably prevent a fracture at the time of falling.

  FIG. 8 is a partially cutaway perspective view showing a buffer 80 of a human body protector 78 according to still another embodiment of the present invention. 9 is a cross-sectional view taken along line IX-IX in FIG. The buffer body 80 includes a porous body 82, a bag body 84, and a ventilation body 86. The size and shape of the buffer 80 are the same as those of the buffer 6 shown in FIG. The porous body 82 has the same configuration as the human body protector 2 in FIG.

  The bag body 84 is made of a synthetic resin film. The bag body 84 encloses the porous body 82 in an airtight manner. The bag body 84 includes a circular opening 88. A ventilation body 86 is attached to the opening 88.

  The ventilation body 86 includes a ventilation valve 90 and a container 92 as a partition. The ventilation valve 90 includes an intake valve 94 as an intake means and an exhaust valve 96 as an exhaust means. The intake valve 94 includes a support 98 and an umbrella portion 100 that is centered on the support 98 and expands radially. The support 98 has a first mounting hole 102 at the center thereof. The umbrella unit 100 can move up and down. The exhaust valve 96 includes a cylindrical body 104 and an exhaust port 106 at the center of the cylindrical body 104. The exhaust valve 96 is fixed to the intake valve 94 by fitting the cylindrical body 104 into the first mounting hole 102. In the human body protector 78, the intake valve 94 and the exhaust valve 96 are integrally formed. The inside and the outside of the buffer body 80 are connected via the exhaust port 106. In addition, this exhaust valve 96 and the upper cover mentioned later may be integrally formed.

  FIG. 10 is a perspective view showing a container 92 provided in the buffer body 80 of FIG. The container 92 is cylindrical. The container 92 is made of a hard member. The container 92 includes an upper lid 108 and a cap 110. The upper lid 108 includes second attachment holes 112 and four first vent holes 114. The first vent holes 114 are arranged at equal intervals from the second mounting hole 112 at an equal distance. A gas outside the buffer 80 is introduced into the buffer 80 through the first vent 114. The cap 110 includes a ring 116 and a lower lid 118. The ring 116 and the lower lid 118 are integrally formed. The ring 116 includes a number of second vents 120. The second vent holes 120 are arranged at equal intervals in the circumferential direction of the ring 116. The lower lid 118 includes a third attachment hole 122 and a third ventilation hole 123. Although not shown, the third vent holes 123 are arranged at equal intervals from the third mounting hole 122 at an equal distance. The sucked gas is introduced into the porous body 82 through the second vent 120 and the third vent 123.

  In the human body protector 78, one end 126 of the cylindrical body 104 is fitted into the second mounting hole 112 so that the outer edge 124 of the umbrella part 100 contacts the upper lid 108. The other end 126 of the cylindrical body 104 is fitted into the third mounting hole 122. The opening of the cap 110 is closed with the upper lid 108. In this way, the vent valve 90 is fixed to the container 92.

  In the human body protection device 78, the ventilation body 86 is disposed below the opening 88 of the bag body 84. The surface 128 of the upper lid 108 and the inner surface 130 of the bag body 84 are joined. The ventilation body 86 is fixed to the inner surface 130 of the bag body 84. The intake valve 94 is disposed inside the container 92. The inner diameter of the ring 116 constituting the container 92 is larger than the outer diameter of the umbrella part 100 constituting the intake valve 94. The inner surface 132 of the ring 116 and the outer edge 124 of the umbrella 100 are in a non-contact state. Since the container 92 isolates the intake valve 94 from the porous body 82, the porous body 82 and the outer edge 124 are not always in contact with each other. The opening / closing operation of the intake valve 94 can always be maintained. This human body protector 78 can reliably prevent a fracture at the time of falling.

  In this human body protector 78, an intake valve 94, an exhaust valve 96, and a container 92 are configured by a ventilation body 86 as one part. The intake body 94 and the exhaust valve 96 are attached to the buffer body 80 by arranging the ventilation body 86 at a predetermined position of the bag body 84. The intake valve 94 and the exhaust valve 96 do not need to be attached separately. The assembly of the buffer 80 is simple. The human body protector 78 provided with such a buffer 80 is excellent in productivity. In addition, since the opening / closing operation of the intake valve 94 can always be maintained, the reliability of the human body protection device 78 is high.

  The human body protection device according to the present invention can also be used to protect human knees, elbows and the like.

FIG. 1 (a) is a front view showing a use state of a human body protector according to an embodiment of the present invention, FIG. 1 (b) is a side view thereof, and FIG. 1 (c) is a rear view thereof. It is. FIG. 2 is a partially cutaway perspective view showing a shock absorber of the human body protector shown in FIG. 1. FIG. 3 is a cross-sectional view taken along line III-III in FIG. 4 is a cross-sectional view taken along line IV-IV in FIG. FIG. 5 is a perspective view illustrating a ring provided in the shock absorber of FIG. 2. FIG. 6 is an enlarged cross-sectional view illustrating a part of a shock absorber provided in a human body protector according to another embodiment of the present invention. FIG. 7 is a perspective view illustrating a cap provided in the shock absorber of FIG. 6. FIG. 8 is a perspective view showing a shock absorber provided in a human body protector according to still another embodiment of the present invention. 9 is a cross-sectional view taken along line IX-IX in FIG. FIG. 10 is a perspective view illustrating a container provided in the buffer body of FIG. 8.

Explanation of symbols

2, 50, 78 ... Human body protection device 4 ... Human 6, 52, 80 ... Buffer body 8 ... Wearing body 10 ... Belt 12 ... Butt pad 14 ... Pocket 16, 54, 82 ... porous body 18, 56, 84 ... bag body 20, 58, 94 ... intake valve 22, 96 ... exhaust valve 24, 62, 116 ... ring 26, 102 .... First mounting hole 28, 112 ... Second mounting hole 30, 70 ... Vent 32, 98 ... Support 34, 74, 100 ... Umbrella 36, 104 ... Cylindrical body 38, 106 ... exhaust port 40, 66 ... outer surface 42, 44, 68, 72, 130, 132 ... inner surface 46, 76, 124 ... outer edge 48 ... flat surface 60, 110 ... Cap 64 ... Lid 86 ... Ventilator 88 ... Opening 90 ... Ventilation valve 92 ... Container 108 ... Upper lid 114 ... First vent 118 ... Lower lid 120 ... Second vent 122 ... Third mounting hole 123 ... Third vent 126 ... End 128 ···surface

Claims (6)

A shock absorber and a mounting body in which the shock absorber is accommodated;
The buffer body is a porous body having deformation restoring properties, a bag body that encloses the porous body in an airtight manner, an intake means for sucking gas into the bag body, and an exhaust means for discharging gas outside the bag body. And a partition for isolating the air intake means from the porous body,
A personal protective equipment in which the amount of gas sucked into the bag per unit time is larger than the amount of gas discharged outside the bag per unit time. As the intake means, an intake valve that is opened in the intake direction and closed in the exhaust direction is used.
This intake valve is arranged inside the partition,
The human body protector according to claim 1, wherein an outer edge of the intake valve and an inner surface of the partition are in a non-contact state.   The human body protector according to claim 2, wherein the partition is made of a ring.   The human body protector according to claim 2, wherein the partition includes a cap.   The human body protector according to claim 2, wherein the partition is made of a container. The human body protector according to any one of claims 1 to 5, wherein the exhaust unit and the intake unit are integrally formed.

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