Detachable propeller for flying toys
First Claim
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1. A flying toy comprising:
- a body, a first propulsion unit, having a first motor and a first propeller rotated by the first motor mounted on the body, a propeller holder for mounting the propeller including an end cap for location in front of the propeller holder, a snap joint between the holder and the end cap, the end cap being removable by disengagement of the holder and the end cap at the snap joint, and the propeller being releasable from the holder by a human hand and without a tool, and the holder including a drive shaft for engagement with the motor, a stub for mounting the propeller, the propeller having a bore for accommodation on the stub, the stub and bore having an interface whereby the propeller is mountable for normal operation to be rotatable by the drive shaft in an essentially right angular transverse plane with respect to the drive shaft, and wherein with the drive shaft rotating in a normal drive mode, and with a removal of the propeller towards the body, such removal effectively disengages the propeller from the drive shaft whereby the drive shaft rotates in the normal drive mode and the propeller is removed from the rotating drive action and is trapped at least in part between the body and the stub.
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Abstract
A flying toy has a propeller rotated by the first motor mounted on the body. A propeller holder mounts the propeller. An end cap is located to the front of the propeller holder, and there is a snap joint between the holder and the end cap. The end cap is removable by disengagement of holder and end cap at the snap joint, and the propeller is releasable from the holder by a human hand and without a tool. When the toy crashes, the propeller is forced relatively free from the drive force rotating the holder and back towards the body and is trapped against separation from the toy.
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Citations
18 Claims
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1. A flying toy comprising:
- a body, a first propulsion unit, having a first motor and a first propeller rotated by the first motor mounted on the body, a propeller holder for mounting the propeller including an end cap for location in front of the propeller holder, a snap joint between the holder and the end cap, the end cap being removable by disengagement of the holder and the end cap at the snap joint, and the propeller being releasable from the holder by a human hand and without a tool, and the holder including a drive shaft for engagement with the motor, a stub for mounting the propeller, the propeller having a bore for accommodation on the stub, the stub and bore having an interface whereby the propeller is mountable for normal operation to be rotatable by the drive shaft in an essentially right angular transverse plane with respect to the drive shaft, and wherein with the drive shaft rotating in a normal drive mode, and with a removal of the propeller towards the body, such removal effectively disengages the propeller from the drive shaft whereby the drive shaft rotates in the normal drive mode and the propeller is removed from the rotating drive action and is trapped at least in part between the body and the stub.
- View Dependent Claims (4, 5, 6, 7, 8, 9, 10, 11, 12)
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2. A toy airplane comprising:
- a fuselage having a first wing and a second wing attached to and extending from opposite sides of the fuselage;
a first propulsion unit, having a first motor and a first propeller rotated by the first motor mounted on the airplane, a propeller holder for mounting the propeller including an end cap for location in front of the propeller holder, a snap joint between the holder and the end cap, wherein the propeller is releasable from the holder by a human hand and without a tool, and the holder including a drive shaft for engagement with the motor, a stub for mounting the propeller, the propeller having a bore for accommodation on the stub, the stub and bore having an interface whereby the propeller is mountable for normal operation to be rotatable by the drive shaft in an essentially right angular transverse plane with respect to the drive shaft, and wherein with the drive shaft rotating in a normal drive mode, and with a removal of the propeller towards the body, such removal effectively disengages the propeller from the drive shaft whereby the drive shaft rotates in the normal drive mode and the propeller is removed from the rotating drive action and is trapped at least in part between the body and the stub. - View Dependent Claims (13, 14)
- a fuselage having a first wing and a second wing attached to and extending from opposite sides of the fuselage;
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3. A toy helicopter comprising:
- a fuselage;
a first propulsion unit, having a first motor and a first rotor rotated by the first motor mounted on the fuselage, a rotor holder for mounting the rotor including an end cap for location in front of the rotor holder, a snap joint between the holder and the end cap, wherein the rotor is releasable from the holder by a human hand and without a tool, and the holder including a drive shaft for engagement with the motor, a stub for mounting the propeller, the propeller having a bore for accommodation on the stub, the stub and bore having an interface whereby the propeller is mountable for normal operation to be rotatable by the drive shaft in an essentially right angular transverse plane with respect to the drive shaft, and wherein with the drive shaft rotating in a normal drive mode, and with a removal of the propeller towards the body, such removal effectively disengages the propeller from the drive shaft whereby the drive shaft rotates in the normal drive mode and the propeller is removed from the rotating drive action and is trapped at least in part between the body and the stub. - View Dependent Claims (15, 16)
- a fuselage;
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17. A method of operating a flying toy having:
- a body, a first propulsion unit, having a first motor and a first propeller rotated by the first motor mounted on the body, a propeller holder for mounting the propeller including an end cap for location in front of the propeller holder, a snap joint between the holder and the end cap, the holder including a drive shaft for engagement with the motor, a stub with the holder for mounting the propeller, the propeller having a bore for accommodation on the stub, the stub and bore having an interface and comprising the steps of;
mounting the propeller with the stub for normal rotatable operation by the drive shaft in an essentially right angular transverse plane with respect to the drive shaft; rotating the drive shaft in a normal drive mode thereby causing rotation of the propeller, removing the propeller towards the body under a force from a forward end of the body towards the body, effectively disengaging the propeller from the drive shaft by urging the propeller towards the body; trapping the propeller at least in part between the body and the stub; and continuing rotation of the drive shaft in the normal drive mode with the propeller removed from the rotating drive action and in the trapped location. - View Dependent Claims (18)
- a body, a first propulsion unit, having a first motor and a first propeller rotated by the first motor mounted on the body, a propeller holder for mounting the propeller including an end cap for location in front of the propeller holder, a snap joint between the holder and the end cap, the holder including a drive shaft for engagement with the motor, a stub with the holder for mounting the propeller, the propeller having a bore for accommodation on the stub, the stub and bore having an interface and comprising the steps of;
Specification