US2937870A

US2937870A - Remote control toy airplane

Info

Publication number: US2937870A
Application number: US672600A
Authority: US
Inventors: George E Berger
Original assignee: Individual
Current assignee: Individual
Priority date: 1957-07-18
Filing date: 1957-07-18
Publication date: 1960-05-24
Anticipated expiration: 1977-05-24

Description

May 24, 1960 5. E. BERGER 2,937,870

REMOTE CONTROL TOY'AIRPLANE Filed July 18, 1957 2 Sheets-Sheet 1 INVENTOR GEORGE E.BERGER ATTORNEYS May 24, 1960 G. E. BERGER 2,937,870

REMOTE CONTROL TOY AIRPLANE Filed July 18, 1957 2 Sheets-Sheet 2 WEE r. \NVENTOR G EORGE E. BERGER AT TORN EY S REMOTE CONTROL TOY AIRPLANE George E. Berger, Lalke Drive, Two Rivers, Wis.

Filed July 18, 1957, Ser. No. 672,630

2 (Ilaims. (Cl. 272--31) This invention appertains to toys and amusement de- S tates Patent vices and more particularly to a novel toy airport and air plane.

One of the primary objects of my invention is to provide an amusement device embodying aremote operating means for controlling the taking off, flying and landing of a toy airplane relative to a simulated airport,

which will be interesting and instructive to the operator cluding a pylon and a captive toy airplane connected with the airport by a flexible cord adapted to be wound on and payed off of a rotatable spool carried by the airport, the pylon being driven, so as to engage the cord .to bring about the manipulation of the airplane.

Another salient object of my inventionis the provision of two manual controls for the airport and airplane, one of said controls being operable for bringing about the operation of the motor employed for rotating the pylon and the other control being operable for stopping and releasing the spool, the construction being such that proper manipulation of the controls will bring about desired take offs, the flying andlanding of the airplane.

A further object of my invention is to provide a novel rotatable pylon forming a part of the airport and embodying spaced upright rods between which the cord for the airplane extends, the rods functioning to engage the cord to swing the airplane out during rotation of the pylon and the Winding up of the cord thereon forbringing the airplane into the airport when rotation of the pylon is stopped.

A still further object of my invention is to provide an amusement device of the above character, which willbe durable and eflicient in use, one that will be simple and easy to manufacture and one which can be placed upon the market at a reasonable cost.

With these and other objects in view, the invention consists in the novel construction, arrangement and formationrof parts, as will be hereinafter more specifically described and claimed, and illustrated in the accompanying drawings, in which drawings,

Figure 1 is a perspective view showingmy improved amusement device with the airplane in flight;

Figure 2 is a view similar to Figure l, but showing the airplane landed on the airport itself;

Figure 3 is a view similar to Figures 1 and 2 and showing the plane in flight but with the cord partially wound about the pylon;

Figure 4 is an enlarged fragmentary vertical sectional view through the lower end of the airport, the view being taken on the line 4-4 of Figure 5, looking in the directending rods 31 and these rods form an important feature ice arrows, the view illustrating thecontrol forthe drive metor for the pylon, and the brake or control lever for-the Referring to the drawings in detail, whereinsimilar reference characters designate corresponding parts throughout the several views, the letter A generally indicates my novel toy or amusement device and the same includes an airport 10 and a captive toy airplane 11.

l The term airport has been used in view of the fact that the airplane lands, takes off and flies relative to the member 10. This airport 10 includes a base 12 which is adapted to be placed on a floor or other surface. This base 12 is formed to provide in conjunction with other .parts, as will later appear, a housing for certain operating parts of the device. Thus, the base 12 can be in the nature of a pan and the same includes a base plate -or bottomwall 13 and an upstanding marginal wall 14.

The bottom wall 13 can be provided with feet 15, if such should be desired. Rigidly secured to the upper face of the bottom wall 12 is a U-shaped supporting bracket or bearing block 16 and fastened to the center of the block or bracket is a bearing sleeve 17. Rotatably mounted on the bearing sleeve 17 is a hub sleeve 18 and it is to be noted that the lower end of the hub sleeve is provided with a thrust flange 19 which engages the upper surface of the bearing block or bracket lfi. Both the bearing sleeve 17 and the hub sleeve 18 are mounted axially relative to the base and the bearing sleeve .17

.rotatably supports a shaft-20 to which is rigidly secured a spool 21 for a cord 22, which is attached to the airplane 11. The lower end of the spool shaft 20 terminates in a lower bearing point.

Mounted on top ofthe base 12 is a rotatable platform 7 23 and this platform is of' an inverted pan shape and has a greater diameter than the diameter of the base 12. Thus the platform 23 includes a top disc shaped wall 24 and-a depending marginal wall 25. The platform 23 part of a pylon and this pylon is freely rotatable about the bearing sleeve 17. The platform 23 also includes-a hub plate'26 which is rigidly secured to the hubsleeve 18 and to the upper face of the top wall 240i the platform 23. Also secured to the hub sleeve18 and rigidly fastened .to the lower face of the wall 24 is a pulley 27.

ThusQthe platform, the hub sleeve 18, the hub plate 26 and the pulley 27 rotate as a unit. A small electric mo} tor 28 is firmly carried by one. end of the bearing block or bracket 16 and the armature shaft 29 extends upwardly at one side of the pulley 27 and is operatively connected to the pulley a pulley belt 30. The. pylon also includes a plurality of upwardly X of the invention. The lower ends of the rods are rigidly fastened to the top wall 24 of the platform 23 adjace1it to the outer edge thereof and these rods extend upwardly a considerable distance 'above the platform and their upper ends gradually curve inwardly toward the axial center of the platform. The upper ends of the rods 31 are all rigidly connected in any preferred way, such as by the use of a top plate 32. i 9 q The motor 28 preferably receives its .current from a battery 33 formed from a series of dry cells 34'-'and these cells 34 are connected in series 'and are received. 'within a case 35 rigidly carried by thebase" 12.. The

cells 34 are properly connected together by means or contacts 36 carried by thecase 35. Thus one terminal of the motor is connected by awire 37 to one terminal of the. battery. and the other terminal :ofrthe :batt'ery- 'is forrotating the same, by means of grounded to the base by a ground wire 38. The other terminal of the motor 28 has electrically connected therewith a wire 39 which leads to a control switch 40 and this switch also forms an important feature of the invention. The switch 40 includes a resilient switch lever 41 one end' of which is secured by means of insulating blocks 42 with the base 12 and the spring lever is so tensioned that the same is normally held away from the base 12, it being understood that the base 12 is formed from electric conducting material. The outer end of the spring switch lever 41 has secured thereto a pull cord 43,and the pull cord is of a considerable length so that the outer end thereof will be situated a point distant from the base. The outer end of the pull cord 43 has firmly fastened thereto a manipulating finger piece 44 which can bear suitable operating indicia, such as the letter Pmeaning power control.

The rotatable spool shaft 20 has formed thereon a flat stop face 45 and I provide a brake or stop lever 45 for cooperation with this face to bring about the holding of the shaft 20 and its spool 21 against rotation, at certain times, which will later appear. The inner end of the brake lever 46 is pivoted, as at 47, to the bracket 16 at one side of the shaft 20. The opposite end of the lever extends beyond the shaft and is mounted in a guide slot 48 formed in one end of the bracket 16. The outer end of the brake lever 46, has secured thereto a pull cord 49 and the outer end of this pull cord extends at a point distant from the base and has secured thereto a manipulating finger piece 50. This finger piece can also bear operating indicia, such as the letter L, meaning landing. At the present moment, it is to be noted that when the cord 43 is pulled a circuit is closed through the motor for rotating the pylon and when the string 49 is pulled, thelever 46 engages the flat face of the shaft 20 and holds this shaft against rotation. When the cord 49 is released; rotation of the shaft will merely kick the lever 46 outwardly.

The plane 11 is of a light construction now commonly found in toy planes on the market and can be formed from balsa wood. I As illustrated, the same includes a fuselage 51, wings 52 and a tail assembly 53. The plane can be provided with landing wheels, if such should be preferred.

It is to be also noted, at this time, that one rod 31 of the pylon has formed thereon or secured thereto a stop knob 54 and that this stop knob is located adjacent to but spaced from the platform 23. The purpose of this knob will now appear.

' In operation 'of the amusement device, and considering that the cord 22 is wound upon the spool 21 and that the "plane is resting on the platform 23, with the terminal thereof just in advance of the rod 31 carrying the stop knob 54 and it is desired to fiy the plane-to have the "plane take off from the platform the brake lever 46 is released and a pull is exerted on the cord 43 to bring the switch lever 40 in electrical contact with the base 12. The circuit will be closed through the motor and f th'e pylon will start to revolve and the plane 11 will be thrown by. centrifugal force outwardly and the cord will engagethe rod 3 1 and its upward travel will be stopped by the knob 54. This rod will carry the cord 22 therewith and as the spool 21 is freely rotatable, the cord can be easily pulled off of the spool and the plane will be moved outwardly and the same will effectively take off and fly out to the length of the cord.

To land the plane on the airport or platform, the cord 49 is pulled so as to bring the brake lever 46 into engage- .Iplane itself touches the top of the platform 23 pull 'on the cord'43-is released and this breaks the circuit through'the 4 motor 28 and shuts off the power and the plane will drop gently on the platform.

To land the plane on the floor away from the port, the flying speed of the plane is reduced by starting and stopping the motor 28 and when the plane comes into a downward glide, power is completely shut oft". If it is desired to have the plane land relatively close to the platform, the brake levers can be operated until a desired length of the cord 22 is wound on the spool.

In order to have the plane take off from the floor alongside of the airport, the circuit is opened and closed to the motor and this will slowly wind the cord 22 around the pylon (see Figure 3). When the plane is near the pylon the circuit to the motor is left closed and the plane will be swung up and outwardly.

With practice, the operator can so manipulate the two controls to cause the plane to fly outwardly away from the pylon or to be drawn inwardly toward the pylon and to perform dives, etc. This can be accomplished by having the motor run full speed which will cause the cord to slightly wrap upward around the pylon and this will lift the plane up and in toward the pylon. When the motor is momentarily shut off, the plane will then fly outward in a greater circle unwrapping the cord from the pylon and the plane will tend to climb slightly and then to dive. At this time, by closing the circuit to the motor, and as the momentum of the plane increases, the same will pull out of its dive and tend to climb upward. The plane can be maintained at various altitudes by start ing and stopping the motor.

It is to be also understood at this point, that the motor can be operated from a house circuit and in which instance a control would be provided for regulating the speed of the motor. This is advantageous, as by controlling the speed of the motor the plane can be more readily handled to perform various acrobatics; also a solenoid control may be used to engage the brake lever and both motor and braking spool can be controlled from a remote control section away from the airport.

Various other changes in details may be made without departing from the spirit or the scope of this invention, but what I claim as new is:

1. In an amusement device, the combination of a toy airplane and a control cord attached thereto and means for controlling the flight of the plane including a simulated airport having a non-rotatable base, a rotatable platform on the base constituting a landing field for the airplane, means under the control of the operator for rotating the platform, a freely rotatable spool carried by the base and disposed above the platform and having an axial shaft rotatable therewith, said cord being secured to the spool and adapted to be wound on and paid off the spool, upstanding spaced rods carried by the platform and rotatable therewith, the cord being disposed between a pair of the rods, so that upon rotation of the platform a rod will engage the cord, a brake lever dis- 'po'sed at one side of the shaft, manually operable means for moving. the brake lever into engagement with the shaft for holding the shaft and the spool against rotation whereby the cord will wind upon the spool to bring the plane inward during flying of the plane around the airport.

'2. In an amusement device, the combination of a toy airplane and a control cord attached thereto and a control mechanism for the airplane including a simulated airport having a non-rotatable base, said base including a bottom wall and an upwardly extending marginal wall, a bearing bracket secured to the base, a bearing sleeve rigidly secured to the bracket and extending upwardly therefrom, a rotatable platform including a top wall and a depending marginal wall extending down toward the marginal wall of the base and forming in conjunction therewith a housing, said platform also having a hub sleeve rotatably mounted on the bearing sleeve and a .pulley secured to the hub sleeve, an axially disposed shaft carried by the bearing sleeve, a spool secured to the shaft having the control cord attached thereto with the cord adapted to be wound on and paid off of the spool, said spool and shaft being freely rotatable relative to the platform and base, an electric motor carried by the bracket and a drive belt operatively connected to the motor and to the pulley, a switch for controlling the opening and closing of a circuit to the motor, a pull cord for operating the switch, a plurality of upwardly extending rods secured to the platform, the control cord being disposed between certain of the rods and adapted to be engaged by a rod upon rotation of the platform, and

means for holding the shaft and spool against rotation so that the control cord will wind on the spool when the plane is in flight including a brake lever movable into braking contact with the shaft, and a pull cord attached 5 to the brake lever.

References Cited in the file of this patent UNITED STATES PATENTS