WO2000069292A1

WO2000069292A1 - Shock buffer

Info

Publication number: WO2000069292A1
Application number: PCT/JP2000/000960
Authority: WO
Inventors: Sohei Takashima
Original assignee: Sohei Takashima
Priority date: 1999-05-13
Filing date: 2000-02-21
Publication date: 2000-11-23
Also published as: JP3063889U; AU2574900A

Abstract

An air chamber or air chambers having a double structure consisting of inner and outer chambers evacuated and filled with different fillers are provided between inner and outer skins of a suitlike main body worn by a rider of a motorcycle or a high-place worker, or between inner and outer skins of a main body the shape of which matches an article protected by the main body. Upon starting the operation, the air chambers are instantaneously expanded in two stages by introducing air through an atmospheric pressure inlet/outlet by means of a changeable start-up key and by using the repulsion of the fillers in the air chamber. The shock to the human body or the article is buffered by a double two-stage buffering mechanism for the buffering by the difference between the inner pressures in the inner and outer chambers produced because of the difference between the diameters of the atmospheric pressure inlet/outlet and the inner valve while air is introduced and by the difference between the repulsions of the high- and low-density fillers. The characteristic key is used for eliminating the blind spot of motion by means of a hornlike cable guide fittable into a changeable cover of screwed type by imparting the key a shape corresponding to the movement of the key in any direction in front of the key body which cannot be predicted in case of an accident.

Description

Specification

Technical field

The present invention is functionally equipped even when not in operation as protection equipment for occupants of motorcycles, protection equipment for workers at heights, and storage and transportation equipment. The main body, including the outer skin and endothelium, serving as a double two-stage buffer mechanism, and a replaceable starting key, all of which are for emergency protection. As a tool, it operates with the physical phenomena in an emergency as a starting factor without waiting for the judgment of the wearer or the manager. Background art

In the event of a traffic accident such as a motorcycle, a high-altitude worker falling, an article being transported, or a seismic disaster occurring in the stored items, the passenger, wearer, or article may drop or fall due to some factor. Severe injury or death, or loss of value due to bruising of a body or object on a structure, road surface, or wall surface, bruising of the whole body, fracture of neck, spine, sternum, etc., rupture of internal organs, impact, etc. However, as a result, not only the sadness of the family but also the economic impact has been great, and it is a social problem at present. Under these circumstances, the effectiveness of Helmet for protecting the head of passengers and wearers, and the effectiveness of Japan Utility Model Registration No. 3048084 as an automatic gas inflatable shock absorber is Although this is an obvious advance, the present invention is functional enough for passengers such as motorcycles, workers at high altitudes, and goods being transported or stored to be used on a daily basis even when not in operation. In the event of a traffic accident that activates the present invention, a fall accident, It protects the body, neck, chest, abdomen, back, waist, and other parts of the body, which had been vulnerable in the event of an accident during transportation or an earthquake disaster, from impact, resulting in dizziness resulting in serious injury, death, or damage to the article.

For conventional motorcycle and other passenger protection equipment, fall protection equipment for workers at high places, child seats, packing materials, etc., the air chamber is filled with compressed gas, etc. in an emergency, or has a closed air chamber. Or, there is a material that provides a buffering effect by a material having repulsive force or absorbing power.However, as in the present invention, the valve operates when a physical phenomenon in an emergency activates and the valve is released at atmospheric pressure. The dual two-stage buffering mechanism based on the difference in internal pressure between the inner and outer chambers caused by the difference in caliber and the difference in repulsion between the high-density and low-density fillers that fill the inner and outer chambers, respectively. There is nothing to reduce the impact on the human body or the luggage being transported.

In addition, the shape of the present invention should be compact in accordance with the protection target during non-operation to secure the mobility and flexibility unique to passengers such as motorcycles and high-altitude workers, as well as transport and storage space. In addition to retaining, effective functions are not lost due to the degree of freedom in shape fabrication that is characteristic compared to conventional impact mitigation devices.

Regarding the operation, the activation key is designed to operate the activation device simply but automatically and reliably, and a traffic accident or a fall accident that may occur against the will of the passenger, wearer, or administrator The problem of serious accidents, fatal accidents, or damage to goods due to accidents during transportation, earthquakes, or damage to goods.When passengers ride on motorcycles, etc., or workers at high places are working at high places, goods are being transported or stored, and unprotected. However, it is intended to eliminate the current situation that arises.

The structure of the present invention is very simple irrespective of its shape, and because it uses atmospheric pressure, it requires a high-pressure cylinder that operates the main body itself, a valve structure that copes with high pressure, and a membrane. Because it is something that does not It is easy to handle and easy to repair in terms of quantity, and it is intended to be used repeatedly, which addresses the problem of increasing industrial waste due to disposable use. Disclosure of the invention

According to the present invention, vacuum is evacuated and stored between the outer skin and inner skin of clothes worn by passengers such as motorcycles, high-altitude workers, etc., or between the outer skin and inner skin shaped according to the article to be protected. One or more air chambers with a double structure of inner and outer chambers with different filling materials are provided, and the air injected from the atmospheric pressure outlet is repelled by the replaceable start key during operation. The air chamber is instantaneously expanded due to the two-stage filling, and the inner pressure difference between the inner and outer chambers due to the difference in the valve diameter at the time of atmospheric pressure outflow due to the difference between the inner and outer chambers due to the difference in the valve diameter at the time of atmospheric pressure outflow due to the inner valve having a different diameter from the atmospheric pressure inlet and outlet at the time of impact. Due to the double two-stage damping mechanism based on the difference in repulsion between high-density and low-density fillers filled in each room, traffic accidents such as motorcycles, vehicles that can be said to be specific to high-place work accidents, Throw from place Is fallen rider wearer road, road construction, the impact on the human body at the time of crashing into the wall or the like, or during transport, Ru der which reduce the impact to the article, such as during collection.

The outer skin and endothelium are shaped according to the object to be protected.However, if they have a clothing-like shape that protects the human body, such as motorcycles and other high-passenger workers, the fibers that form the outer skin and endothelium are usually used. The waterproof and windproof functions of the airplane alleviate the cooling of the occupants and passengers, and in the event of an accident or a disaster, the friction and impact are not transmitted directly to the air chamber. In addition, even when it is not in operation, the outer skin has a retroreflective tape, a rain hood, a lid pocket, a transparent document holder, a transparent document holder, a bouch-type rain gear, etc. Some passengers, such as wheeled vehicles, are equipped with a depack-type container with a lid. It has a structure in which portable items to be stored are used as shock absorbers in the event of impact.

The outer skin and endothelium are shaped according to the object to be protected, and the appearance differs depending on the shape and size of the article when dealing with an article damage accident during transportation, an earthquake disaster during storage, etc. Normally, however, it protects the goods with waterproof and windproof functions of fibers and synthetic resin that form the outer skin, and mitigates friction and impact without transmitting them directly to the air chamber in the event of an accident during transportation or an earthquake disaster. It plays a role. In addition, the outer skin is equipped with a retroreflective tape, a pocket with a lid, and a transparent document holder that make it easy for the administrator to confirm the position of the article when not in operation. It has a structure in which synthetic resin patten to be stored in the boquette is used as a cushioning material for phased impact distribution during an impact.

The starting key body is integrated with the atmospheric pressure inlet and outlet, is provided in the inner chamber so as to penetrate the outer skin and the outer chamber, and is attached to the cable guide, safety device, and lid that are integrated with the replaceable screw-type lid And a key consisting of a cable and a fixing device. In operation, since the seal of the seal attached to the lid of the screw-in type lid is removed with a key, the atmosphere flows into the inner and outer chambers that were compressed by evacuation from the atmospheric pressure inlet and outlet, and compressed and filled. The air chamber is expanded by the resilience of the filled filler.

The characteristic key is that it is equipped with a device that can be attached to and detached from motorcycles, structures, etc., but is connected and fixed.A disaster occurs due to a horn-shaped cable guide that fits into a replaceable screw-in lid. The blind spot of the operation is eliminated by the shape corresponding to the operation of the 180-degree square key front which is sometimes unpredictable.

A distinctive key is that it has a structure that facilitates reuse of the body by replacing the screw-in lid. In addition, the key is used when not in use, and a safety device for fixing the key cable is provided in the screw-in lid integrated structure. This not only prevents unnecessary malfunctions when worn, installed, inspected, etc., with the safety device engaged, but also saves storage time when storing the present invention. It is excellent in the effectiveness of the solution.

The key is equipped with a device that is fixed to a part of a vehicle such as a motorcycle or a structure, at one end of a cable of a certain length adjusted and determined by the passenger, wearer, or administrator to be valid, and the other end. Consists of a cable guide, a safety device, and a seal attached to the lid, which are integral with the screw-in lid. This is based on the basic principle of riding a motorcycle such as a motorcycle and that the body does not separate.In the event of a traffic accident, the movement of the passenger's body and the vehicle is physically separated. When the occupant separates beyond the limit of the degree of freedom of the cable that connects the main body and the key fixing device, the seal is removed, so that it automatically operates instantaneously without waiting for the occupant's judgment. It is an emergency response solution. Similarly, when a worker at a high place falls during an aerial work, when an accident occurs during the transfer of goods, or when an earthquake disaster occurs in the stored goods, the target to be protected may depend on the wearer or the user for some reason. The movement factor is to move beyond the limit length of the cable freedom without the intention of the user.

The space between the outer garment and the inner skin of the garment worn by passengers and aerial workers such as motorcycles, or between the outer lining and the inner skin shaped according to the item to be protected is filled and stored. One or more air chambers with a double structure of inner and outer chambers with different materials are provided, but the air chambers of the multiple air chambers are secured by the air passages between the inner chambers and the outer chambers by the air passages between the outer chambers. The airway is secured between the inner chamber and the outer chamber by an inner valve with a smaller diameter than the atmospheric pressure outlet. The presence of the multiple air chambers ensures freedom of movement when the main body has a clothes-like shape, and more complicated when the main body has a shape conforming to an article. It effectively corresponds to the shape of the object to be protected.

An airway is secured between the inner chamber and the outer chamber by an inner valve with a smaller diameter than the atmospheric pressure outlet, and when the air chamber is impacted, the difference in the amount of air escaping between the inner chamber and the outer chamber absorbs and reduces the impact It is.

The compressible filling material that is evacuated and filled into the inner chamber and the outer chamber, respectively, rebounds and restores the air chamber when the air chamber is released to the atmospheric pressure during operation, thereby expanding the air chamber. The chamber is filled with high-density filler and the outer chamber is filled with low-density filler, so that when the chamber is impacted, the difference in repulsion absorbs and reduces the impact.

The suction valve, which is provided with a check valve for evacuation and is independently connected to the inner chamber, is provided so as to penetrate the endothelium, facilitating inspection and reuse.

The inner and outer chambers and the key body for starting, the atmospheric pressure outlet, the inlet valve, the intake valve and the suction valve are structurally not subject to pressurization above atmospheric pressure, so they are thin regardless of their shape and scale. As a result, the weight reduction of its own weight, which is one of the important factors for the practical use of the impact mitigation device of the present invention, is realized.

The impact mitigation device of the present invention does not have any mechanical device and structure as a whole, and the fact is to avoid malfunction due to mechanical failure.

When riding a motorcycle, etc., keep your hands on the handlebars, you must always balance with your body.When working at heights, you need to do the work separately with a body with a lance. There are unique conditions such as an environment where managers cannot always accompany, and it is not possible to predict the time of the occurrence of earthquake disaster for stored items, but one or all of the present invention has failed It solves the problem of starting up instantaneously at the point of time under physical conditions. That is, one end of the key is fixed to a vehicle or structure such as a motorcycle, and the other end is raised. If a situation occurs in which the occupant, user's body, or article moves beyond the limit of the degree of freedom of cable from a vehicle or structure such as a motorcycle, with the safety device released and attached to the work key body When the key seal is physically separated from the activation key body, the air is automatically injected into the air chamber that was kept in a vacuum state, and the air chamber expands due to the repulsive resilience of the filler. Therefore, if the body shape of the present invention takes the form of clothing, the occupant or wearer wearing the body shape may hit the human body when colliding with the road surface, on-road structure, wall surface, building structure, etc. When the main body of the present invention has a shape adapted to the article to be protected, the shock to the article is alleviated. The present invention activates a specific accident operation environment in the event of a specific boarding operation in the event of a motorcycle accident such as a motorcycle accident, a specific operation operation in the event of a fall from a high-level worker, an accident in transporting goods, or an earthquake in a stored product. It is automatically activated by the factor, and the operation is completed in a few seconds.

In the present invention, the inflator does not operate under the riding conditions of motorcycles and the like under normal conditions, the working conditions of workers at high altitudes under normal conditions, the transport of goods and the like, and the storage conditions. Also, when the safety device is activated, it does not operate. However, even under normal conditions of boarding, working or transporting, even in the non-operating state during storage, windproof by fabric forming outer skin and endothelium, establishment of waterproof function, confirmation from others by retroreflective tape It enhances the functions in daily use environment, such as improving the degree of balance, integrating the necessary storage sections, etc., and improving the balance of passengers and workers. BRIEF DESCRIPTION OF THE FIGURES

FIG. 1 is an example of an operation conceptual diagram when the main body of the present invention has a clothing shape for a motorcycle rider, and a broken line shows a state where the main body of the present invention is operated. Fig. 2 is an example of the concept of operation when the main body of the present invention has a clothing shape for workers at high places, and the broken line shows the state in which the main body of the present invention is operating.

Fig. 3 is an example of the concept of operation when the main body of the present invention has a shape that matches the article to be protected, such as during storage or transfer, and the broken line shows the state in which the main body of the present invention operates. Things.

In FIG. 4, a is a diagram showing the relationship between the activation keys, and b is a diagram showing the concept of the cross section.

Fig. 5 is an example of a conceptual view of the appearance when the main body is in the form of clothes, and Fig. 6 is a diagram showing an example of a conceptual view of the appearance when the main body has a shape according to the article to be protected. is there.

FIG. 7 is a sectional view showing the concept of the main body structure when not operating, and FIG. 8 is a cross-sectional view showing the concept of the main body structure when operating. BEST MODE FOR CARRYING OUT THE INVENTION

The present invention will be described in more detail with reference to the accompanying drawings in order to explain the present invention in more detail.The present invention is a device in which one end of a motorcycle is detachable from a structure or the like, but is fixed to a structure or the like. Interchangeable screw-in lid 9 Fits in a flute-shaped cable guide 4, safety device 11, and seal 13 attached to the lid. And a body that is shaped and scaled to suit the shape of the clothing worn by the occupants and workers, or the items to be protected. The effect can be obtained by using them at the same time. The main body has an outer skin 1 and an inner skin 18, and between the inner skin 18 and the outer skin 1, one or more inner chambers 19 which are compressed and housed by evacuation when not in operation 19 air chambers of the outer chamber 20, inner chamber 19 High-density 22 and low-density 21 packing materials filled and compressed in the outer chamber 20, the inner chamber 19, the inner valve 23 connecting the outer chamber 20, the outer skin 1 and the inner chamber 19 through the outer chamber 20 to start It is equipped with an atmospheric pressure outlet 5 which is integral with the key body, and a suction valve 25 which penetrates the inner skin 18 and leads to the inner chamber 19, and operates with a key in which a series of keys 2 are screwed into the key body. It is activated by peeling off the seal 13 attached to the lid 9 at the tip of 2 and the atmosphere flowing in from the atmospheric pressure outlet 5 is the original high-density packing material 22 that was compressed and stored in the inner chamber 19. The inner chamber 19 is expanded by restoring the low density filler 21 that has been restored to the original state, and the low-density filler 21 that flows into the outer chamber 20 from the inner valve 23 and is compressed and stored in the outer chamber 20 returns to its original shape. This is for expanding the chamber 20.

If the main body of the present invention is impacted by any factor, the air injected into the outer chamber 20 is compressed by the outside, flows out from the inner valve 23 to the inner chamber, and is similarly compressed. The air inside the inner chamber 19 flows out from the atmospheric pressure outlet 5 to the outside.At this time, a pressure change in the outer chamber 20 due to a difference in diameter between the inner valve 23 and the atmospheric pressure outlet 5 occurs. Is used as an impact mitigation device, and the difference in repulsion between the low-density filler 21 in the outer chamber 20 and the high-density filler 22 in the inner chamber 19 is used as an impact mitigation device.

Fig. 1 is a conceptual diagram of the operation when the main body of the present invention takes on a clothing shape.The key 2 seal 13 is used regardless of the posture of a passenger riding a motorcycle in the event of a traffic accident. However, the broken line indicates the state in which the present invention is activated and the air chamber is inflated by operating the main body of the present invention.

Fig. 2 is a conceptual diagram of the operation when the main body of the present invention adopts a clothing shape, and the key 2 is The seal 13 shows a state in which the present invention is activated by being peeled off, and a broken line indicates a state in which the main body of the present invention is operated and the air chamber is expanded. It is.

Fig. 3 is a conceptual diagram of the operation of the main body of the present invention when the main body has a shape that matches the item to be protected.The posture of the item being transported or stored during an accident or disaster caused by some factor Even if a situation such as falling or dropping occurs, the key 13 shows the situation where the seal 13 of the key 2 is peeled off and the present invention is started.

Fig. 4 shows a motorcycle with a motorcycle at one end, a device that is detachable but fixed to a structure, etc. It has a safety device 11 and a pin 13 for the safety device and a seal 13 to be attached to the screw-in lid 9, and it is connected with a cable 4 of a certain length adjusted by the occupant, wearer and manager to be effective. This will cause the collapse of the passenger or wearer's posture, or the unintended movement of the management of the articles being transported and stored, to the activation of the device of the present invention. The cable 4 is adjusted by the adjusting claw 8 to a length determined to be valid by the passenger, the wearer, and the administrator. A is a conceptual diagram of the configuration, and b is a conceptual diagram of a cross section.

FIG. 5 is an example of a conceptual diagram of the appearance of the main body of the present invention when the main body takes a clothing shape. The main body is wrapped in a double-layered outer skin 1 and inner skin 18 waterproofed with non-combustible synthetic fibers, etc.On the outer skin 1, anticorrosive resin zipper 7, retroreflective tape 16, lid pocket 14, equipped with a transparent document holder 15 and a double structure of an outer chamber 20 containing a low-density filler 21 and a high-density filler 22 that are compressed and stored by evacuation from the suction valve 25 when not in operation. Built-in air chamber that communicates between the outer chamber 20 and the outer chamber 20 and between the inner chamber 19 and the inner chamber 19 The start key body penetrating the outer chamber 20 and directly connected to the inner chamber 19, and the suction valve 25 penetrating the endothelium 18 and directly connecting to the inner chamber 19, are combined. Their shape, scale and positional relationship can be freely set. FIG. 6 is an example of a conceptual diagram of the appearance of the main body in the case where the main body of the present invention has a shape corresponding to the article to be protected. The main body is wrapped in a two-layered outer skin 1 and inner skin 18 made of non-combustible synthetic fiber and water-proof.The outer skin 1 is made of anticorrosive resin zipper 7, retroreflective tape 16, patentet 17, transparent document. It has a holder 15, and has a double structure of an outer chamber 20 containing a low-density filler 21 and a inner chamber 19 containing a high-density filler 22, which are compressed and stored by suction from the suction valve 25 when not in operation. Built-in air valve that connects the chamber, the outer chamber 20 and the inner chamber 19, and the airway that connects the outer chamber 20 and the outer chamber 20 and between the inner chamber 19 and the inner chamber 19, and is integrated with the atmospheric pressure outlet 5 It is a combination of a start key body that penetrates the outer chamber 20 and is directly connected to the inner chamber 19, and a suction valve 25 that penetrates the endothelium 18 and is directly connected to the inner chamber 19, and their shapes according to the purpose. , Scale and location can be freely set.

Fig. 7 shows the starting key 2 and the starting key body of the present invention, the outer skin 1 and the inner skin 18, the inner chamber 19, the outer chamber 20's air chamber, the inner valve 23, the airway, and the low-density filling material 21 when not operating. FIG. 2 is a cross-sectional view showing a conceptual relationship between a high-density filler 22 and a suction valve 25, and is a figure that is not limited to a shape, a scale, and a configuration position. When the start key 2 is attached to the start key body and the safety device 11 is engaged, vacuum is drawn from the suction valve 25 to evacuate the air inside the inner chamber 19, outer chamber 20, and airway, and at the same time fill the air with low density. The material 21 and the high-density filling material 22 are also compressed.Complete compression is performed and the suction valve 25 is closed to prepare for storage and use. After completion, the safety device 11 is released.

Fig. 8 shows the activation key 2 and activation key body of the present invention during operation, the outer skin 1 and inner skin 18, the inner chamber 19, the outer chamber 20 air chamber, the inner valve 23, the airway, the low-density filler 21, the high density. FIG. 2 is a cross-sectional view showing a conceptual relationship between a filler 22 and a suction valve 25, and is a figure that is not limited to a shape, a scale, and a configuration position. Startup key 2 sticker 13 each When the air is released from the start key body and the air flows in from the atmospheric pressure outflow / inlet port 5, the low-density packing material 21 compressed and stored in the inner chamber 19 and the outer chamber 20 through the airway and the inner valve 23, and the high-density packing It releases the material 22 and restores the resilience. If the main body of the present invention is shocked for some reason after the start-up by the start-up key 2, the air injected into the outer chamber 20 is compressed by the outside and flows into the inner chamber 19 from the inner valve 23. Similarly, the compressed air inside the inner chamber 19 flows out from the atmospheric pressure outlet 5 to the outside.At this time, due to the difference in diameter between the inner valve 23 and the atmospheric pressure outlet 5, the inner chamber 19 The pressure change in the pressure chamber cancels the shock wave and acts as a shock absorber, and the difference in repulsion between the low-density packing material 21 in the outer chamber 20 and the high-density packing material 22 in the inner chamber 19 reduces the overall shock. It works as a device. Industrial applicability

Since the present invention is configured as described above, the following effects can be obtained.

The air chamber and / or low-density and high-density fillers of one or more inner / outer chambers that function as a double two-stage shock absorber are impacted by the exterior from the outside of the body under some operating conditions under the operating conditions of the present invention. At that point, the air inside the outer chamber is compressed by the outside and flows out from the inner valve to the inner chamber, and the compressed air inside the inner chamber flows out from the atmospheric pressure inlet to the outside. However, at this time, the pressure change in the outer chamber due to the difference in diameter between the inner valve and the atmospheric pressure inlet / outlet cancels out the shock wave and acts as a shock absorber, while the low density packing material in the outer chamber and the inner chamber The difference between the repulsive forces of the high-density fillers as a whole obtains an effective damping capacity as a double two-stage shock mitigation mechanism. During the non-operation of the present invention, the inner and outer chambers and the low-density and high-density fillers to be filled in each are compressed and stored by evacuation when not in operation. Maintaining the body in a compact shape that matches the protection target, securing the mobility and flexibility unique to passengers such as motorcycles and high-level workers, as well as transport and storage space, and losing the effective functions of the body itself There is no. The starting key of the present invention is used for passengers and users in dangerous environments such as motorcycle accidents, high-altitude workers falling accidents, goods transport accidents, and earthquake disasters of stored items. In addition, by linking the physical change of the posture of the article with the operation of the physical key, it automatically starts without the judgment of the user and the administrator, and the key body in combination with the cable guide The blind shape of operation is eliminated by the shape corresponding to the operation of the 180 degree square key on the front. In addition, the main body can be reused reliably and easily by exchanging the startup key that is integral with the screw-in lid.

Furthermore, the structure that allows the degree of freedom in shape, scale, and configuration position does not depend on the shape of the object to be protected by the present invention, the structure to be combined is very simple, and the atmospheric pressure is reduced. Since it is used, it does not require a high-pressure cylinder that operates the main body itself, a valve structure and a film that has rigidity to cope with high pressure, etc. It is free from the restrictions on atmospheric volume, pressure restrictions due to shape, and increases in weight and number of parts, and it is possible to set the shape, scale, and configuration position according to the target and environment to be protected.

Claims

The scope of the claims

1.The shock mitigation device of the present invention is designed to be used in dangerous environments such as motorcycle accidents, high-altitude workers falling accidents, goods transportation accidents, and earthquake disasters of stored items. Starts automatically without the judgment of the administrator, and prepares for a double-structured air chamber consisting of one or more inner and outer chambers with different packing materials that are compressed and stored by evacuation between the outer and inner skins The difference between the internal pressure of the inner chamber and the inner pressure of the inner chamber caused by the difference in the valve diameter when the air chamber is released to the atmospheric pressure by the start key at the time of impact due to the inner valve with a different diameter from the atmospheric pressure inlet and outlet. Due to the double two-stage damping mechanism based on the difference in repulsion between the high-density and low-density fillers filled in each outdoor room, impacts on the wearer and user, or during transportation and storage An impact characterized by mitigating the impact on the article Mitigation

2. In the shock mitigation device described in 1 above, the inner chamber sharing the suction valve with the atmospheric pressure outlet and inlet shares the atmosphere with the outer chamber by the inner valve during expansion, and the inner chamber has a compressible high-density packing material. Each chamber is equipped with a compressible low-density packing material as an expansion material, but the start-up key seals the atmospheric pressure outflow and inlet ports, and the suction valve closes the chamber after evacuation. An impact mitigation device characterized by having a structure for maintaining a shocked state.

3. In the impact mitigation device described in 1 above, the starting key is a gull-shaped cable guide, a safety device, and a screw-in type lid that can be replaced with a starting key body that is integral with the atmospheric pressure outlet. It consists of a seal attached to the lid and a combination of a key consisting of a cable and a fixing device. At one end of the key cable, there is provided a device that can be attached to and detached from a motorcycle or the like, but is connected and fixed. The shape corresponding to the 180 degree square key operation eliminates blind spots in operation, and reuses the main unit by replacing the screw-in lid. An impact mitigation device characterized by having a structure that facilitates the operation.

4. In the impact mitigation device described in 1 above, the shape, scale, and configuration position of the main body are combined according to the shape and scale of the object to be protected by protecting the impact of the human body, articles, etc., and the use environment. An impact mitigation device that is automatically activated without waiting for the judgment of the user or administrator, and has a structure that allows flexibility in its shape, scale, and configuration position.