Patent Description:
In the drone in which an arm part is protruded from a central mounting part accommodating a camera therein, and a rotary vane is provided at a front side position of the arm part, the drone may be crashed by the trouble of the air frame such as a breakage of a motor rotating the rotary vane and a deterioration of a battery, or may be crashed under the influence of the abnormal weather such as blast, and may be further crushed by the radio disturbance in the case that the drone is affected by any noise or flies to an area where the radio wave does not reach, that is, the drone may be crashed due to various causes (patent literature <NUM> and patent literature <NUM>).

When the drone is crashed as mentioned above, there has been such a danger that the crashed drone injures the person in the case that the crashed drone collides with the other things such as the person or the building structure.

A drone relevant to this disclosure is disclosed in patent literature <NUM>. Particularly, in its wording, this document discloses a drone comprising an airbag system which comprises an upper, a lower and side airbag systems, as well as a drone comprising a central part and lift propellers.

Further drones are disclosed in patent literatures <NUM>, <NUM> and <NUM>.

The present invention is developed by taking into consideration the conventional problems mentioned above, and an object of the present invention is to provide a drone with an airbag which can effectively prevent such the danger that the drone during the flight is crashed due to the unexpected occurrence such as the trouble in the air fame, the abnormal weather and the radio wave, and the crashed drone collides with the other things such as the person or the building structure and injures the person.

The present invention solves the problem with a drone with airbags according to claims <NUM> and <NUM>. Advantageous further developments are set out in the dependent claims.

On the basis of the drone with the airbag according to the present invention, it is possible to effectively prevent the danger that the drone injures the person in the case that the drone collides with the other things such as the person or the building structure, when the drone during the flight becomes an uncontrollable state under the influence of the trouble in the air frame, the abnormal weather or the radio disturbance and is crashed.

In <FIG>, a drone with airbag <NUM> is structured such that a drone <NUM> having rotary vanes <NUM> generating lift force is provided with an airbag <NUM> which absorbs a shock when the drone <NUM> is crashed and collides with the other things such as a person and a building structure, and an inflation control device controlling inflation of the airbag <NUM> is provided. The airbag <NUM> can be inflated by gas supplied on the basis of a control by the inflation control device, and the inflation is carried out before the drone <NUM> collides with the other things according to the control.

In the underlying illustrative example, the drone <NUM> is structured such that arm parts <NUM> are protruded out of a central mounting part <NUM> in a radial pattern, and the rotary vane <NUM> which can rotate around a vertical axis <NUM> (<FIG>) is provided in a front side position <NUM> of each of the arm parts <NUM>. A first holding part <NUM> is provided in such a manner as to surround the drone <NUM> while putting the central mounting part <NUM> at the center. A first airbag <NUM> (one aspect of the airbag <NUM>) which can be inflated by the supplied gas is attached to the first holding part <NUM> in a folded state, as shown in <FIG>. In the underlying illustrative example, the first airbag <NUM> is adapted to be inflated so as to protrude out toward an outer side (a direction shown by an arrow in <FIG>) of the first holding part <NUM> as seen in a horizontal plane. Further, the first airbag <NUM> can be inflated by the gas supplied according to the control by a first inflation control device (one aspect of the inflation control device), and the inflation according to the control is adapted to be carried out before the drone <NUM> collides with the other things such as the person. The inflated first airbag <NUM> is adapted to surround the drone <NUM> in the horizontal plane while putting the central mounting part <NUM> at the center.

The drone <NUM> is structured, more specifically as shown in <FIG>, such that four arms parts <NUM>, <NUM>, <NUM> and <NUM> are provided in a protruding manner in a radial pattern at an approximately <NUM> degree angle pitch in the horizontal plane, on an outer surface part <NUM> of the central mounting part <NUM> in which an inflator (not shown) for supplying the gas to the first airbag <NUM> and a trigger device (not shown) thereof are accommodated. Lengths of the arm parts <NUM> are set to be approximately the same length, the rotary vane <NUM> which can rotate around the vertical axis <NUM> is provided in a front side position <NUM> of each of the arm parts <NUM>, and the lift force is generated by the rotation of the rotary vane <NUM>. Further, in the underlying illustrative example, as shown in <FIG>, a leg part <NUM> fixed its upper end to a base part <NUM> (<FIG>) of the arm part <NUM> is provided in a protruding manner so as to protrude out downward in a lower side of each of the arm parts <NUM>.

The first holding part <NUM> is formed into a circular ring shape existing in the horizontal plane as shown in <FIG> in the underlying illustrative example, and is bent in a direction that upper and lower end parts <NUM> and <NUM> of a base plate part <NUM> formed into a circular ring shape face each other, and an accommodation part <NUM> is formed in an inner part thereof. The first airbag <NUM> in a small folded state is accommodated in the accommodation part <NUM> as shown in <FIG>, and a base part <NUM> thereof is fixed to a bottom part <NUM> of the accommodation part <NUM>. In the underlying illustrative example, the first holding part <NUM> is set its vertical length L1 to about <NUM> to <NUM>, for example, about <NUM>, and is set its width L2 in a horizontal direction to about <NUM> to <NUM>, for example, about <NUM>. The circular ring-shaped first holding part <NUM> having the structure mentioned above is structured, as shown in <FIG> in the underlying illustrative example, such that a center <NUM> thereof is approximately in conformity to a center <NUM> of the central mounting part <NUM>, and an inner peripheral surface part <NUM> thereof is positioned somewhat in an outer side of the four rotary vanes <NUM>, <NUM>, <NUM> and <NUM>.

The first holding part <NUM> is arranged via a first support part <NUM> protruded from the central mounting part <NUM> as shown in <FIG> in the underlying explanatory embodiment, and is substantially provided in the central mounting part <NUM>. Further, the first support part <NUM> is constructed as an arm-shaped support part 27a for supporting the first holding part <NUM>, in the underlying explanatory embodiment. The arm-shaped support part 27a is provided in a protruding manner on the outer surface part <NUM> of the central mounting part <NUM> between the arm parts <NUM> and <NUM> which are adjacent in the horizontal plane, and a front end part (a front end in the underlying explanatory embodiment) <NUM> of each of the arm-shaped support parts 27a is connected to the inner peripheral surface part <NUM> of the first holding part <NUM>. The connection can be achieved by using a known means such as welding, screw fixing and various engaging means. Accordingly, the first holding part <NUM> is substantially provided in the central mounting part <NUM> via the first support part <NUM> as mentioned above.

The first airbag <NUM> is constructed by using a resin raw material which is soft and has a desired strength, such as polyurethane, vinyl chloride, and nylon, the first airbag <NUM> in a folded state is housed in the accommodation part <NUM> as mentioned above, and a base part <NUM> thereof is fixed to the bottom part <NUM> of the accommodation part <NUM>.

Further, the gas flows from the inflator via an opening part (not shown) into the first airbag <NUM> in the folded state as mentioned above, and the first airbag <NUM> is rapidly inflated. A state in which the first airbag <NUM> is inflated is shown in <FIG>. The first airbag <NUM> inflated as mentioned above is structured, as shown in <FIG>, such that the first airbag <NUM> is inflated in such a manner as to protrude outward from a front end edge <NUM> of the first holding part <NUM> in a state in which the base part <NUM> of the first airbag <NUM> is kept being fixed to the bottom part <NUM> of the accommodation part <NUM>. The first airbag <NUM> is adapted to be inflated so as to protrude outward, for example, at about <NUM> to <NUM>. An amount of protrusion is appropriately set according to a shape and a size of the drone in such a manner as to effectively prevent the danger that the drone <NUM> injures the person in the case that the drone <NUM> collides with the other things such as the person as mentioned later.

The first inflation control device is provided with a detecting means (not shown) which automatically detects the fact that the drone <NUM> during the flight becomes uncontrollable under the influence of a trouble in the air frame, the abnormal weather or the radio disturbance, and an actuating means (not shown) which actuates the inflator on the basis of a detection signal of the detecting means before the collision with the other things such as to the person.

Accordingly, in the case that the drone <NUM> during the flight becomes uncontrollable under the influence of the trouble in the air frame, the abnormal weather or the radio disturbance, the detecting means automatically detects the fact, and actuates the inflator on the basis of the detection signal of the detecting means before the collision with the other things such as the person, and the gas supplied from the inflator inflates the first airbag <NUM> via a gas piping (not shown) as mentioned above. As a result, the drone <NUM> comes to a state in which the drone <NUM> is surrounded in the horizontal plane by the first airbag <NUM> in the inflated state shown in <FIG> while putting the central mounting part <NUM> at the center. Since the uncontrollable drone <NUM> tends to be crashed in a state in which the first airbag <NUM> is in an approximately horizontal state or an inclined state, the first airbag <NUM> in the inflated state achieves a good buffer action even in the case that the crashed drone <NUM> collides with the other things such as the person. Therefore, it is possible to effectively prevent the danger that the drone <NUM> injures the person in the case that the drone <NUM> collides with the other things such as the person.

The drone with airbag <NUM> shown in <FIG> is provided with a second airbag (one aspect of the airbag <NUM>) <NUM> in addition to the first airbag <NUM>, and is provided with a second inflation control device (one aspect of the inflation control device) which controls inflation of the second airbag <NUM>. The second inflation control device is provided with a detecting means (not shown) which automatically detects the fact that the drone <NUM> during the flight becomes uncontrollable under the influence of the trouble in the air frame, the abnormal weather or the radio disturbance, and an actuating means (not shown) which actuates the inflator mentioned above on the basis of a detection signal of the detecting means before the collision with the other things such as the person, in the same manner as the embodiment mentioned above.

More specifically, as shown in <FIG>, a second holding part <NUM> is provided in such a manner as to surround the drone <NUM> in the vertical plane while putting the central mounting part <NUM> at the center, and the second airbag <NUM> which can be inflated so as to protrude outward by the supplied gas is attached to the second holding part <NUM> in a folded state as shown in <FIG>.

The second holding part <NUM> is formed into a circular ring shape or an oval ring shape existing in the vertical plane, and is arranged between the adjacent arm parts <NUM> and <NUM> in the present embodiment as shown in <FIG>.

More specifically, the second holding part <NUM> is formed into an oval ring shape which is long in a horizontal direction and is comparatively short in a vertical direction, as seen in a vertical plane including an axis F of the arm-shaped support parts 27a and 27a which are arranged linearly between the arm parts <NUM> and <NUM>, as shown in <FIG>. Further, the central mounting part <NUM> is adapted to be received in an inner side of the oval ring-shaped second holding part <NUM>. Further, a lower end of the leg part <NUM> is made somewhat protrude downward in the second holding part <NUM> in such a manner that a lower end <NUM> of the leg part <NUM> in the drone <NUM> can ground on a ground plane <NUM> in a front view shown in <FIG>.

Further, the second holding part <NUM> is arranged via a second support part <NUM> which is provided in a protruding manner on the outer surface part <NUM> of the central mounting part <NUM>, as shown in <FIG>. The second support part <NUM> is constructed as an arm-shaped support part 40a which is provided in a protruding manner vertically in the outer surface part <NUM> in the central mounting part <NUM>, and a front end part (a front end in the present embodiment) <NUM> of each of the arm-shaped support parts 40a is connected to an inner peripheral surface part of the second holding part <NUM>. As a result, the second holding part <NUM> is substantially provided in the central mounting part <NUM> via the second support part <NUM>.

Further, the second holding part <NUM> is bent in a direction that right and left end parts <NUM> and <NUM> of a base plate part <NUM> formed into an oval ring shape face each other, as seen in a surface which is orthogonal to the vertical plane, and an accommodation part <NUM> is formed in an inner part thereof, as shown in <FIG>. Further, the second airbag <NUM> in the small folded state is accommodated in the accommodation part <NUM> as shown in <FIG>, and the base part <NUM> thereof is fixed to a bottom part <NUM> of the accommodation part <NUM>. Further, the second holding part <NUM> is set its lateral width L3 to about <NUM> to <NUM>, for example, about <NUM>, and set its width L3 in an internal direction thereof (a direction toward the central mounting part <NUM>) to about <NUM> to <NUM>, for example, about <NUM>, in <FIG>. The second holding part <NUM> formed into the oval ring shape according to the structure mentioned above is substantially provided in the central mounting part <NUM>.

The second airbag <NUM> held in the folded state by the second holding part <NUM> having the structure mentioned above can be inflated by the gas supplied on the basis of the control according to the second inflation control device (one aspect of the inflation control device). Further, the inflation is carried out before the drone <NUM> collides with the other things such as the person according to the control. Further, as shown in <FIG> and <FIG>, the inflated second airbag <NUM> is adapted to surround the drone <NUM> in the vertical plane while putting the central mounting part <NUM> at the center.

The second airbag <NUM> is constructed by using the resin raw material which is soft and has the desired strength such as the polyurethane, the vinyl chloride or the nylon, in the same manner as that in the first airbag <NUM>, the second airbag <NUM> in the folded state is accommodated in the accommodation part <NUM> (<FIG>), and the base part <NUM> thereof is fixed to the bottom part <NUM> of the accommodation part <NUM>.

Further, the gas flows from the inflator (not shown) into the second airbag <NUM> in the folded state as mentioned above through an opening part (not shown), and the second airbag <NUM> is adapted to be rapidly inflated. The state in which the second airbag <NUM> is inflated is shown in <FIG>, <FIG> and <FIG>, and the second airbag <NUM> is inflated in such a manner as to protrude outward from the second support part <NUM>. The second airbag <NUM> is adapted to be inflated in such a manner as to protrude outward, for example, about <NUM> to <NUM>. An amount of protrusion is appropriately set according to the shape and the size of the drone, in such a manner as to effectively prevent the danger that the drone <NUM> injures the person in the case that the drone <NUM> collides with the other things such as the person, as mentioned later.

The second inflation control device is provided with a detecting means (not shown) which automatically detects the fact that the drone <NUM> during the flight becomes uncontrollable under the influence of the trouble in the air frame, the abnormal weather or the radio disturbance, and the actuating means (not shown) which actuates the same inflator as mentioned above on the basis of the detection signal of the detecting means before the collision with the other things such as to the person.

Accordingly, in the case that the drone <NUM> during the flight becomes uncontrollable under the influence of the trouble in the air frame, the abnormal weather or the radio disturbance, the detecting means of the first inflation control device and the detecting means of the second inflation control device automatically detect the fact, and actuate the inflator on the basis of the detection signals of the detecting means before the collision with the other things such as the person, and the gas supplied from the inflator inflates the first airbag <NUM> and the second airbag <NUM> via the gas piping (not shown) as mentioned above. As a result, the drone <NUM> comes to a state in which the drone <NUM> is surrounded in the horizontal plane by the first airbag <NUM> in the inflated state shown in <FIG> while putting the central mounting part <NUM> at the center. Further, the drone <NUM> comes to a state in which the drone <NUM> is surrounded in the vertical plane by the second airbag <NUM> in the inflated state while putting the central mounting part <NUM> at the center, as shown in <FIG> and <FIG>.

Therefore, even in the case that the crashed drone <NUM> collides with the other things such as the person, the first airbag <NUM> and the second airbag <NUM> in the inflated state achieve a good buffer action. As a result, it is possible to prevent the danger that the drone <NUM> collides with the other things and injures the person. Particularly, in the present embodiment, since the second airbag <NUM> is provided in addition to the first airbag <NUM>, the buffer action can be achieved in the horizontal direction and the vertical direction. Therefore, it is possible to more effectively prevent the danger that the drone <NUM> collides with the person and injures the person. Further illustrative examples not falling under the scope of the appended claims.

The drone with airbag <NUM> shown in <FIG> is structured such that the first airbag <NUM> having the same structure as mentioned above is attached to the first holding part <NUM> in the drone with airbag <NUM> shown in the underlying explanatory embodiment, and the first airbag <NUM> is in an inflated state from the beginning by the supplied gas. In this case, the first airbag <NUM> is provided in such a manner as to surround the drone <NUM> in the horizontal plane (for example, in such a manner as to surround in the horizontal plane while putting the central mounting part at the center) in the same manner as mentioned above. Further, according to the drone with airbag <NUM> mentioned above, it is also possible to effectively prevent the danger that the crashed drone injures the person even in the case that the crashed drone collides with the other things such as the person.

It goes without saying that the present invention is never limited to the structures shown by the embodiments mentioned above, but can be variously design changed within the scope of "claims".

For example, in the case that the number of the arm parts <NUM> is set to three with the <NUM> degree angle pitches, the shape of the first airbag <NUM> in the inflated state in the plan view may be set to a triangular ring shape. Further, in the case that the number of the rotary vanes <NUM> is intended to be increased for generating the greater lift force, the number of the arm parts <NUM> protruded outward from the central mounting part <NUM> is increased. In the case that the number thereof is five, six or eight, for example, the shape of the first airbag <NUM> in the inflated state in the plan view may be set to a pentagonal ring shape, a hexagonal ring shape, an octagonal ring shape or an oval ring shape in addition to the circular ring shape. Further, the shape may be set to a quadrangular ring shape in the case that the number of the arm parts <NUM> is four as mentioned above.

In the case that the shape of the first airbag <NUM> in the inflated state in the plan view is set to the other shapes than the circular ring shape as mentioned above, the shape of the first holding part <NUM> may be set to such the ring shape since the first airbag <NUM> is differently inflated in the respective parts thereof, in addition to the shape of the first holding part <NUM> set as mentioned above. Same applies to the second airbag <NUM>.

(<NUM>) The shape of the inflated second airbag is set to various shapes in such a manner as to contribute to the prevention of the danger against the other things such as the person when the drone <NUM> is crashed, regardless of the provision of the leg part <NUM> in the drone <NUM>.

(<NUM>) As long as the first airbag <NUM> can effectively prevent the danger when the crashed drone collides with the other things such as the person, the first airbag <NUM> is not essentially provided continuously in the horizontal plane, but may be provided intermittently with spaces. Alternatively, the first airbag <NUM> may be continuously constructed via connection parts which are not inflated, in spite of the continuous state of the first airbag <NUM> in the horizontal plane. For example, it may be constructed as a two-divided continuous state as shown in <FIG> or a four-divided continuous state as shown in <FIG>. Same applies to the second airbag <NUM>.

(<NUM>) The first holding part <NUM> to which the first airbag <NUM> is attached is not necessarily provided continuously in the state of surrounding the drone <NUM> as seen in the horizontal plane. The first holding part <NUM> may be provided in an intermittent state in a plan view as long as the first holding part <NUM> can stably hold the first airbag <NUM> in the inflated state with a desired shape. The provision in the intermittent state as mentioned above is applied to the second holding part <NUM> in the same manner.

(<NUM>) The distance between the front end of the inflated second airbag <NUM> as seen in the vertical plane and the center of the central mounting part <NUM> may be set to the same level in the upper and lower sides as shown in <FIG>, with regard to the upper part and the lower part of the second airbag <NUM>. Alternatively, the distance in the lower part may be set to be larger than the distance in the upper part, or the distance in the upper part may be inversely set to be larger than the distance in the lower part. Whether the distance in the lower part is set to be larger or the distance in the upper part is set to be larger is set in such a manner as to make the danger that the crashed drone <NUM> injures the person when the crashed drone <NUM> collides with the other things such as the person smaller, while taking into consideration the shape and the structure of the drone <NUM>.

For example, in the case that the degree of protrusion in the lower surface part of the central mounting part <NUM> is great, the distance in the lower part can be set to be larger. On the contrary, in the case that the degree of protrusion in the upper surface part of the central mounting part <NUM> is great, the distance in the upper part can be set to be larger.

The protruding state of the second airbag <NUM> as mentioned above can be set by deviating the center of the second holding part <NUM> to the lower side in relation to the center of the central mounting part <NUM> or deviating the center of the second holding part <NUM> to the upper side, in the case that the second holding part <NUM> is formed into the oval ring shape as shown in <FIG>. Alternatively, in the case shown in <FIG>, it can be achieved by structuring such that the second airbag <NUM> attached in the folded state to the lower part of the second holding part <NUM> can be inflated in such a manner as to protrude outward more than the second airbag <NUM> attached in the folded state to the upper part of the second holding part <NUM>. In the case of structuring as mentioned above, the second airbag <NUM> is preferably formed into a state in which the second airbag <NUM> is divided into two sections, that is, the upper part and the lower part.

(<NUM>) The first support part <NUM> and the second support part <NUM> are not limited to protrude directly from the center mounting part <NUM>, as shown by the underlying explanatory embodiment and the embodiment <NUM>. For example, in the case that the drone <NUM> is provided with protective frames <NUM> which are formed into a circular shape such as an annular shape surrounding the rotary vanes <NUM> for protecting the rotary vanes <NUM>, or protective frames <NUM> which are formed into a circular arc shape surrounding the rotary vanes <NUM> in its outer side, as shown in <FIG> or <FIG>, the protective frame <NUM> may be used as the first support part <NUM>. In <FIG>, each of the protective frames <NUM> is provided in the central mounting part <NUM>. Further, in <FIG>, each of the protective frames <NUM> is provided in the arm part <NUM>. In the case that the first support part <NUM> and the second support part <NUM> are provided as mentioned above, the first airbag <NUM> and the second airbag <NUM> correspond to be held by the first holding part <NUM> and the second holding part <NUM> which are substantially provided in the central mounting part <NUM>.

(<NUM>) According to an embodiment <NUM>, the first airbag <NUM> may be structured, for example, as shown in <FIG>, such as to be inflated so as to protrude long upward and/or downward as well as being inflated so as to protrude outward as seen in the horizontal plane by the supplied gas. In <FIG>, there is shown a state of being inflated so as to protrude long upward and downward. In the case of being inflated so as to protrude long upward and downward as mentioned above, the upper and lower protruding portions <NUM> and <NUM> can more effectively achieve the buffer action in a vertical direction, and it is possible to more effectively achieve the prevention of the danger in the case that the drone <NUM> collides with the person, by means of the upper and lower protruding portions <NUM> and <NUM>. Particularly, in the case of being inflated so as to protrude long downward, the drone <NUM> tends to be crashed in a state in which the lower surface part thereof is directed downward in the normal case. As a result, it is possible to more effectively achieve the prevention of the danger and this structure is accordingly preferable.

(<NUM>) The second airbag <NUM> may be structured, for example, as shown in <FIG>, such as to be inflated so as to protrude long to one side and/or the other side as seen in a surface which is orthogonal to the vertical plane, as well as being inflated so as to protrude outward as seen in the vertical plane, by the supplied gas. In <FIG>, there is shown a state of being inflated so as to protrude long toward the one side and the other side. Since an expanding area of the second airbag <NUM> in the orthogonal surface is increased by reverse protruding parts <NUM> and <NUM>, it is possible to effectively prevent the danger that the drone <NUM> injures the person in the case that the drone collides with the other things such as the person.

(<NUM>) In the case that the drone <NUM> is provided with the second airbag <NUM> and is also provided with the second inflation control device which controls the inflation of the second airbag <NUM>, the second airbags <NUM> and <NUM> may be provided, in an illustrative example which does not fall under the scope of the appended claims, in such a manner as to form a parallel state in their inflated state of surrounding the arm parts <NUM> and <NUM> in the vertical plane in the right and left sides of the central mounting part <NUM>, for example, as shown by a one-dot chain line in <FIG>. Further, as shown by a one-dot chain line in <FIG> and <FIG>, the second airbags <NUM> and <NUM>, in an illustrative example which does not fall under the scope of the appended claims, may be provided in such a manner as to form an inverted v-shaped form (<FIG>) or a v-shaped form (<FIG>) in a front elevational view in their inflated state of surrounding the arm parts <NUM> and <NUM> in the surface which is inclined to the vertical plane in the right and left sides of the central mounting part <NUM>. Alternatively, as shown by a one-dot chain line in <FIG>, the air bags may be structured such that two second air bags <NUM> are provided, two second airbags <NUM> and <NUM> in the inflated state are provided in such a manner as to sandwich the central mounting part <NUM> in a crossing state, and each of the second airbags <NUM> and <NUM> is held by the second holding part <NUM> which is substantially provided in the central mounting part <NUM>.

In these cases, the second airbag <NUM> is initially in the folded state in the same manner as shown in <FIG>. The second inflation control device of the drone <NUM> automatically detects the uncontrollable state of the drone <NUM>, and the gas is supplied to the second airbag <NUM> on the basis of the control by the second inflation control device, whereby the second airbag <NUM> can be inflated so as to protrude toward an external direction. In <FIG>, the leg part <NUM> is provided downward at the front side position of the arm part <NUM>.

(<NUM>) The airbag <NUM> can be structured, in an illustrative example which does not fall under the scope of the appended claims, as shown in <FIG>, such that the airbag <NUM> is attached in the folded state to the leg part <NUM>. In addition, the airbag <NUM> may be structured such that the airbag <NUM> is attached in the folded state to the first support part <NUM> (<FIG>, <FIG>, <FIG>, and <FIG>).

(<NUM>) As the means for inflating the first airbag <NUM> and the second airbag <NUM> in the folded state, it is possible to employ a means for inflating by using a simplified gas cylinder and a means for inflating by using an air feeding means constructed by a pump utilizing a motor, in addition to the means for inflating by using the inflator mentioned above.

(<NUM>) The amount of protrusion of the first airbag <NUM> and the second airbag <NUM> when they are inflated can be appropriately set according to the shape and the size of the drone in such a manner as to effectively prevent the danger that the drone <NUM> injures the person in the case that the drone <NUM> collides with the other things such as the person. It may be set to a magnitude, for example, about <NUM> to <NUM>, and further to a greater magnitude.

(<NUM>) The first airbag <NUM> and the second airbag <NUM> may be partly different in their amounts of protrusion toward the external sixe as seen in their peripheral directions. The state of change in the amount of protrusion can be appropriately set according to the shape and the size of the drone in such a manner as to effectively prevent the danger that the drone <NUM> injures the person in the case that the drone <NUM> collides with the other things such as the person.

(<NUM>) The drones with airbags <NUM> shown in <FIG> can be all structured such as to be provided with both the first airbag <NUM> and the second airbag <NUM>. The drones with airbags <NUM> shown in <FIG> are all structured such as to be provided with both the first airbag <NUM> and the second airbag <NUM>.

(<NUM>) The first airbag <NUM> is not specified to the structure which surrounds the drone <NUM> in the horizontal plane while putting the central mounting part <NUM> at the center as shown by the embodiments, as long as the first airbag <NUM> surrounds the drone <NUM> in the horizontal plate in the inflated state. For example, it may be provided in such a manner as to surround the drone <NUM> while being put to the lower side or the upper side of the central mounting part <NUM>.

(<NUM>) The inflation control device (including the first inflation control device and the second inflation control device) can be provided in the other positions than the central mounting part <NUM>, for example, being provided in the first holding part <NUM> or the second holding part <NUM>, in addition to being provided in the central mounting part <NUM> as mentioned above.

(<NUM>) In the present invention, the central mounting part <NUM> may be constructed as an assembly of a plurality of divided parts.

(<NUM>) The present invention can be constructed by using the drones <NUM> having the various shapes and magnitudes. Further, the arm part <NUM> is not limited to protrude comparatively long from the central mounting part <NUM>, but may be structured such as to protrude short, for example, as shown in <FIG>. In this case, the first airbag <NUM> and the second airbag <NUM> are also provided in the same manner as mentioned above.

Claim 1:
A drone with airbags, comprising:
a rotary vane (<NUM>) generating a lift force;
a first airbag (<NUM>) which is configured to absorb a shock generated when the drone crashes and collides with the other things; and
a first inflation control device which is configured to control inflation of the first airbag (<NUM>), wherein
the first airbag (<NUM>) is configured to inflate by a gas supplied on the basis of a first control by the first inflation control device, and
the inflation is configured to be carried out by the first control before the drone collides with the other things, wherein the drone further comprises:
a second airbag (<NUM>) which is configured to absorb the shock generated when the drone crashes and collides with the other things; and
a second inflation control device which is configured to control inflation of the second airbag (<NUM>), wherein
the second airbag (<NUM>) is configured to inflate by a gas supplied on the basis of a second control by the second inflation control device,
the inflation is configured to be carried out by the second control before the drone collides with the other things, and
the inflated second airbag (<NUM>) surrounds the drone like a ring in a vertical plane with a central mounting part (<NUM>) of the drone in the center,
wherein
the drone further comprises arms (<NUM>) protruding radially from the central mounting part (<NUM>), or one or a plurality of arms (<NUM>) protruding from each of right and left sides of the central mounting part (<NUM>),
the rotary vane (<NUM>) generating the lift force by rotation thereof is provided at a front side portion of one of the arms (<NUM>),
the first airbag (<NUM>) is held by a first holding part (<NUM>) which is provided on the central mounting part (<NUM>),
the first holding part (<NUM>) is provided with the first airbag (<NUM>) in a folded state,
the first airbag (<NUM>) is adapted to inflate outward from the first holding part (<NUM>) as seen in the horizontal plane,
the inflated first airbag (<NUM>) surrounds the drone in the horizontal plane with the central mounting part (<NUM>) in the center,
the second airbag (<NUM>) is held by a second holding part (<NUM>) which is provided on the central mounting part (<NUM>),
the second holding part (<NUM>) is provided with the second airbag (<NUM>) in a folded state, and wherein
the second airbag (<NUM>) is adapted to inflate so as to protrude outward from the second holding part (<NUM>) as seen in the vertical plane.