The present invention pertains generally to a camera actuated mechanical release device used in conjunction with remote controlled drones. More specifically, the present invention pertains to a latching device capable of being attached to a drone that allows the user to carry a payload and by moving the camera to a pre-determined position, drop the carried payload. The present invention is particularly, but not exclusively, useful as a convenient way to carry objects with a drone, fly them to a desired location, and release them when they are over the intended drop zone. The base plate for the dropping device can be configured to attach to the landing gear of different drones and configured to carry payloads of different weights. The base plate also has additional attachment points that allow the user to further accessorize their drone.
Piloting remote-control drones has become a popular hobby in this modern era with drones that are often used in photography, racing and general recreation. A typical drone has four motor driven propellers that are evenly spaced for stability during flight. The motors are controlled by an encapsulated control unit that receives radio frequency signals from a transmitter. To pilot a drone the user can either use a radio control system or a smart device such as a phone or a tablet that transmits signals wirelessly. A battery is connected to the control unit to power the motors and the electronics attached to the drone. Some drones also have cameras capable of taking pictures, videos or relaying the sight of the camera back to the user.
Currently, accessorizing a drone is not easy or user friendly. Typically, there are no additional accessory control electronics connections so most accessories attach to the connector that powers the camera, requiring the user to fully disconnect and dismount the camera and mount the accessory in the cameras place. With the new accessory attached, the user is unable to take pictures, video, or even fly the drone through the camera image relayed to the user. Other than the connection port for the battery and camera, additional connection ports to the drone control unit for accessories are scarce.
Dropping objects from drones is both fun to watch and a convenient way to deliver packages. However, most drones cannot attach a dropping system without removing the camera. By removing the camera attached to the drone, the user is unable to see the surrounding environment through the eyes of the drone. A user flying a drone from a remote location cannot watch the payload as it is being dropped from the drone without the aid of the camera. Not watching the dropped object, can result in a poorly dropped payload, since the user cannot view the intended drop area. Also, gently placing fragile packages down becomes almost impossible. By removing the perspective of the drone, the user cannot enjoy the drop of the payload from the altitude that it was released, nor can a more careful delivery be made.
To add additional electronic accessories, the user often needs to modify the control unit of the drone. These modifications to the control unit can be costly and time consuming. Most modifications to a drone, done by the user, void the factory warranty that comes with the drone. Due to the lack of accessories, most users are creating their own electronics packages to control the accessories that they want. Also, due to the lack of mounting options on factory drones, poorly attached user created accessories can detach from the drone during flight and fall from the altitude of the drone, most likely causing damage or injury.
Therefore, it would be advantageous to have a mechanical dropping mechanism that requires no modification of an existing drone. It would also be advantageous for the mount carrying the mechanical dropping mechanism to provide additional mounting space that could securely carry additional drone accessories without modification to the drone itself.
Most commercially available drones have a control unit, flight motors, landing gear and usually a camera. A user can fly the drone by sending radio frequency signals to the control unit to drive the flight motors. The user can also dynamically control the camera attached to the drone to rotate to allow the user to see the surroundings of the drone from the drone's perspective. When the drone is finished flying, it can be set back down on the landing gear to prevent damage to the drone.
The Dropping Mechanism with Universal Mounting Points, of the present invention also referred to as the “Dropping Mechanism” is capable of being mounted to the landing gear of a drone, allowing the user to carry a payload to a desired location, drop the payload with a mechanically operated release and securely transport additional accessories mounted to the base plate.
The Dropping Mechanism of the present invention has five primary components: a base plate, a sliding restraint, a release trigger, a mechanism housing, and an energized member.
The base plate is formed with a plurality of attachment points for additional accessories along with mounting slots positioned for connecting to a drone. The attachment points are identical and evenly spaced and allow easy mounting of accessories in the orientation that best fits the user's needs. Common accessories include flashlights for night flights, flight recorders and additional image capturing modules. The mounting slots that connect the Dropping Mechanism to the drone can be configured to connect to the various different designs of drone landing gear or drone bodies available in the marketplace. While the drone shown in the attached figures is a DJI® Phantom, any drone capable of lifting a payload known to those skilled in the art, may connect a Dropping Mechanism to a part of its structure for use.
The base plate is also formed with a base plate aperture. As set forth further below, the base plate aperture works in combination with a retaining pin in the sliding restraint to secure a payload hook or payload strap connected to a payload.
The sliding restraint has a retaining pin, retention groove formed within a retention tab, and a sliding restraint stop. The retaining pin secures a payload strap or payload hook within the base plate aperture until it is dropped by the user through use of the drone's camera. The edge of the retaining pin may be sloped to aid in release of the payload. The sliding restraint stop comes into contact with the release trigger to stop the closing movement of the sliding restraint. When the sliding restraint is in the drop position, the sliding restraint stop prevents the release trigger from over travel due to excess force imparted by the drone's camera. The sliding restraint has depressions in the form of retention groove shaped to accept the release trigger notch. An energized member acts on the sliding restraint and moves the sliding restraint from the secured position to the drop position.
In one embodiment, the energized member is an elastic strap, such as a rubber band. The elastic strap is attached to a power end of the sliding restraint and to a tension screw connected to the base plate. The tension screw can be threadably inserted into various positions on the base plate to allow the user to adjust the opening force on the sliding restraint.
The position of the tension screw on the base plate can be changed depending on the user's needs. Also, the type and number of elastic straps can be changed to fit the user's needs. The elastic strap is connected to the tension screw in the base plate and also connected to the retaining pin of the sliding restraint. The elastic strap provides the force needed to pull the sliding restraint sufficiently to for the retaining pin to clear the base plate aperture and the mechanism housing aperture when the user wants to release the payload. It is to be appreciated by those of skill in the art that an elastic strap or any stretchable object with a high enough spring constant to move the sliding restraint, could be used.
As an alternative, the energized member may be a spring housed within and between the mechanism housing and sliding restraint. A spring loading tab formed in the sliding restraint compresses and energizes the spring when the sliding restraint is manually moved from the drop position to the secured position.
The release trigger has a flat shoe that comes into contact with the drone's camera, a release trigger notch and a release trigger mounting hole. The release trigger notch fits into the retention groove and keeps the retaining pin in place until the payload needs to be released. To release the payload, the camera of the drone is directed straight down causing it to come into contact with the flat shoe of the release trigger. This force imparted on the flat shoe lifts the release trigger notch out of a retention groove, allowing the elastic strap to pull the sliding restraint from the secured position to the drop position.
The mechanism housing keeps the release trigger and sliding restraint in place by pressing them against the base plate. The mechanism housing mounts to the base plate with mounting retaining clips. The mechanism also contains a pin that protrudes through the release trigger and acts as a fulcrum when the release trigger is pushed by the drone's camera. The mechanism housing also has a mechanism housing aperture that is similar in size to the base plate aperture. The mechanism housing is connected to the base plate such that the mechanism housing aperture is approximately aligned with the base plate aperture. The inclusion of a mechanism housing aperture ensures sufficient clearance for the payload hook or payload strap placed around the retaining pin of the sliding restraint when in the secured position.
In use, a user first connects the Dropping Mechanism to the landing gear of a drone. Next, the user connects a payload to a payload hook or payload strap. The user then moves the sliding restraint from a drop position to a secured position. As the user moves the sliding restraint from the drop position to the secured position, the energizing member becomes energized. Also, as the user moves the sliding restraint from the drop position to the secured position, the user simply passes the retaining pin through the payload strap or payload hook until the sliding restraint is held in place by the release trigger notch secured within the retention groove in the sliding restraint. Once in the secured position, the payload strap or payload hook are secured around the retaining pin within the base plate aperture and the mechanism housing aperture. Once so secured, the user flies the drone to a desired altitude above a desired location. Finally, the user rotates the drone camera towards the ground and in so doing, the camera strikes the flat shoe of the release trigger, thereby releasing the release trigger from the sliding restraint. The sliding restraint then is moved from the secured position to the drop position by the energized member thereby enabling the payload hook or payload strap to freely pass from the base plate aperture and mechanism housing aperture, allowing the payload to drop to the ground. Finally, the user can view the payload fall to the desired location using the camera of the drone.
The nature, objects, and advantages of the present invention will become more apparent to those skilled in the art after considering the following detailed description in connection with the accompanying drawings, in which like reference numerals designate like parts throughout, and wherein:
The Dropping Mechanism with Universal Mounting Points is capable of being mounted to a drone, allowing the user to carry and drop a payload, as well as attach additional accessories in multiple orientations.
Referring initially to
The drone 10 has a drone control unit 12 that receives radio frequency signals from a transmitter to power the flight motors 14, camera 20 and camera motor 22. The Dropping Mechanism 100 holds payload 26 as flight motors 14 propel rotating propellers 16, which in turn provide lift and thrust to the drone 10. The camera 20 is adjusted with camera motors 22 to enable a user to film and view the flight from the perspective of the drone 10.
Once the payload 26 is over the intended drop zone, the flight motors 14 stabilize the drone 10 over the drop zone. A signal is then sent to the drone control unit 12 to actuate the camera motors 22 down in the direction of the release trigger 104 (not shown, as subsequently discussed in
Since camera 20 has been actuated down by camera motors 22, the drone control unit 12 can transmit the image seen by camera 20 back to the user during the free fall of payload 26. Also, with the camera 20 in a position to view the release of the payload 26, it can be gently set down, which allows safe delivery of fragile payloads 26.
Referring next to
The Dropping Mechanism 100 has a base plate 108 with a mechanism housing 112 connected to the base plate 108. A sliding restraint 128 is slidably disposed between the base plate 108 and the mechanism housing 112. The sliding restraint 128 slides from the secured position to the drop position and vis a versa. In the secured position, the sliding restraint 128 has a retaining pin 120 that secures the payload hook 24 (shown in
A release trigger 104 is rotatably connected to the mechanism housing 112. The release trigger 104 has a flat shoe 106 opposite a release trigger notch 122. In the secured position, the release trigger notch 122 is in contact with a retention groove 124 formed in the sliding restraint 128.
The mechanism housing 112 has a mechanism housing aperture 113. Similarly, the base plate 108 has a base plate aperture 115. In the embodiment disclosed in
These apertures 113 and 115, coupled with the retaining pin 120 of the sliding restraint 128, retain the payload hook/payload strap 24 when the sliding restraint 128 is in the secured position. Similarly, the apertures 113 and 115 allow a clear path of travel of the payload hook/payload strap 24 from the Dropping Mechanism 100 when the sliding restraint 128 is in the drop position.
It is to be appreciated by those skilled in the art that the Dropping Mechanism 100 can have alternative embodiments with only a mechanism housing aperture 113 or with only a base plate aperture 115. However, providing a Dropping Mechanism with both the base plate aperture 115 and the mechanism housing aperture 113 enables the Dropping Mechanism 100 to be flipped with respect to the drone 10 without obstructing the path of travel of the payload hook/payload strap 24 when the sliding restraint 128 is in the drop position.
Referring now to
Referring now to
The sliding restraint top 131 also has a retention tab 123 that is formed with a retention groove 124. The retention groove 124 is sized to receive and secure a release trigger notch 122 of a release trigger 104.
The sliding restraint bottom 133 is formed with a retaining pin 120 that terminates in a retaining pin sloped edge 121. The retaining pin 120 forms a retaining pin aperture 125 within the sliding restraint 128.
The stopper side 135 of the sliding restraint 128 has a stopper tab 127 with an access groove 129. The access groove 129 enables a user to pull the sliding restraint 128 from the drop position to the secure the position. The power side 137 of the sliding restraint 128 has a power side tab 141 that forms a power side aperture 143 in the sliding restraint 128. The elastic strap 118 (not shown) is held within the power side aperture 143.
Referring now to
Referring now to
As the camera 20 is moved in direction 138 by camera motor 22, the camera 20 strikes the flat shoe 106 of the release trigger 104. In
Referring now to
Referring now to
A release trigger 204 is rotatably connected to the mechanism housing 212 and acts to secure the sliding restraint 228 in the secured position. Similarly, when the release trigger 204 is actuated, the release trigger 204 releases the sliding restraint 228 to enable the sliding restraint 228 to slide from the secured position to the dropped position.
The sliding restraint 228 has a stopper side 235 with a stopper tab 227. The stopper tab 227 allows for easy hand manipulation to manually move the sliding restraint 228 from the drop position to the secured position by a user when setting up a new payload 26. The sliding restraint 228 also has a retaining pin 220 that traverses across the width of the base plate aperture 215 and the mechanism housing aperture 213 when in the secured position (shown in
Referring now to
Referring now to
As with previous embodiments, the sliding restraint 228 has a retention tab 223 with a retention groove 224 sized to receive and secure a release trigger notch 222 of a release trigger 204. Also, as with previous embodiments, the sliding restraint 228 has a sliding restraint stop 202 extending away from the sliding restraint 228 and terminating in an angled surface 203.
Referring now to
The strike plate extender 342 is fitted with a plurality of raised strike plate walls 343 separating a plurality of strike plate grooves 344 formed on opposing sides of the strike plate extender 342. The strike plate grooves 344 one side of the strike plate extender 342 are sized to slidably receive and secure the first shoe 306 while the remaining strike plate grooves 344 on the other side of the strike plate extender 342 are sized to slidably receive and secure the second shoe 307. The purpose of the strike plate extender 342 is to increase the surface area available for the camera 20 of the drone 10 to strike when actuating the release trigger 304. The plurality of strike plate grooves 344 provide the ability for a user to adjust the strike plate extender 342 for optimal placement to ensure that the camera 20 of the drone 10 will strike the release trigger 304 when the camera 20 is rotated by the user.
In use, a user first connects the Dropping mechanism 100 to the landing gear 18 of a drone 10. Next, the user connects a payload 26 to a payload hook or payload strap 24. The user then moves the sliding restraint 128 of the Dropping mechanism from a drop position to a secured position. As the user moves the sliding restraint 128 from the drop position to the secured position, the energizing member (the elastic strap 118, spring 240, or other energizing member known in the art) becomes energized. Also, as the user moves the sliding restraint 128 from the drop position to the secured position, the user simply passes the retaining pin 120 through the payload strap or payload hook 24 until the sliding restraint 128 is held in place by the release trigger notch 122 secured within the retention groove 124 in the sliding restraint 128. Once in the secured position, the payload strap or payload hook 24 are secured around the retaining pin 120 within the base plate aperture 115 and the mechanism housing aperture 113. Once so secured, the user flies the drone 10 to a desired altitude above a desired location. Finally, the user rotates the drone camera 20 towards the ground and in so doing, the camera 20 strikes the flat shoe 106 of the release trigger 104, thereby releasing the release trigger 104 from the sliding restraint 128. The sliding restraint 128 is then moved from the secured position to the drop position by the energized member (i.e., elastic strap 118, spring 240, etc) thereby enabling the payload hook or payload strap 24 to freely pass from the base plate aperture 115 and mechanism housing aperture 113, allowing the payload 26 to drop to the ground at the desired location. Finally, the user can view the payload 26 fall to the desired location using the camera 20 of the drone 10 to confirm that the payload 26 fell to the desired location.
Where reference is made herein to a method comprising two or more defined steps, the defined steps can be carried out in any order or simultaneously (except where the context excludes that possibility), and the method can include one or more other steps which are carried out before any of the defined steps, between two of the defined steps, or after all the defined steps (except where the context excludes that possibility).
While there have been shown what are presently considered to be preferred embodiments of the present invention, it will be apparent to those skilled in the art that various changes and modifications can be made herein without departing from the scope and spirit of the invention. Accordingly, the invention is not to be limited as except by the appended claims.
This application claims the benefit of priority to the United States Provisional Patent Application for “DROPPING MECHANISM WITH UNIVERSAL MOUNTING POINTS”, Application No. 62/364,651 filed on Jul. 20, 2016.
Number | Date | Country | |
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62364651 | Jul 2016 | US |