Automatic ball launcher
View Patent ↗A ball launching apparatus is provided. The apparatus includes a funnel residing at an upper end of a housing. The funnel includes a channel for gravitationally directing a ball into a launch point within an interior compartment of the housing. The apparatus includes a hammer that strikes a ball through a chute, thereby releasing the ball from the housing. Both the distance at which the ball travels and the angle at which the ball leaves the chute may be adjusted by the operator. A method of exercising a dog is also provided herein.
1. A ball launching apparatus, comprising:
a housing having a supporting base and an interior compartment;
a funnel at an upper end of the housing, the funnel being configured to gravitationally direct a ball into a launch point within the interior compartment;
a chute adjacent the launch point defining a through-opening along the housing;
a platform within the interior compartment, wherein an angle of the platform is adjustable relative to the base;
a drive motor configured to rotate a shaft within the interior compartment;
an elongated hammer residing along the platform, the hammer comprising a proximal end, a distal end, and a through-opening for receiving the shaft, wherein the distal end of the hammer defines a ball striking surface, with the distal end being biased toward the launch point by use of a spring maintained in tension to provide a rotational biasing force, and wherein rotation of the shaft causes rotation of the distal end of the hammer away from the launch point;
a ratchet head connected to and configured to rotate with the drive shaft, the ratchet head having at least one ratchet tooth;
a strike post residing along the platform;
a trigger release arm comprising a proximal end and a distal end, with the distal end of the trigger release arm supporting a pawl, and with the pawl being configured to individually engage the at least one tooth on the ratchet head and then release the ratchet head when a proximal end of the trigger release arm has contacted the strike post, whereupon the hammer is released to allow the biasing force on the hammer to cause the ball striking surface of the hammer to counter-rotate back towards the launch point, thereby striking the ball and launching the ball through the chute; and
a tension adjustment know residing external to the housing, wherein an adjustment of the tension adjustment know adjusts the location of the strike post along the platform, thereby adjusting the degree of tension placed on the spring before the trigger release arm contacts the strike post.
2. The ball launching apparatus of claim 1 , further comprising:
a switch configured to sense the presence of a ball in the launch point, and then send a signal to initiate rotation of the shaft for the pre-designated period of time.
3. The ball launching apparatus of claim 2 , wherein the launch point comprises a cup for receiving a ball along a perimeter of the platform, the cup comprising a cut-out portion for accommodating travel of the striking surface of the hammer during striking of the ball.
4. The ball launching apparatus of claim 2 , wherein:
the spring resides along the platform and comprises a proximal end secured to the platform, and a distal end operatively secured to the distal end of the trigger release arm such that rotation of the shaft applies increased tension to the spring to create the biasing force; and
the shaft extends up through the platform.
5. The ball launching apparatus of claim 4 , wherein:
the ratchet head comprises a plurality of ratchet teeth; and
the drive motor is timed to continue rotation for a period of time after a ratchet tooth has released the pawl to allow a next tooth on the ratchet head to engage the pawl.
6. The ball launching apparatus of claim 5 , wherein the plurality of ratchet teeth in the ratchet head comprises four, equi-radially spaced teeth.
7. The ball launching apparatus of claim 5 , wherein the distal end of the spring is further operatively secured to (i) the proximal end of the hammer, and (ii) the distal end of the trigger release arm, such that rotation of the ratchet head induces rotational movement of the hammer and corresponding movement of the trigger release arm.
8. The ball launching apparatus of claim 5 , wherein:
an adjustment of the tension adjustment knob comprises rotating the tension adjustment knob; and
the apparatus further comprises:
a tensioning gear track residing along a perimeter of the platform; and
a tension gear operatively engaged with the tension adjustment knob, such that rotation of the tension adjustment knob causes the tensioning gear track to travel along the perimeter of the platform, thereby adjusting the location of the strike post to provide a trigger release point.
9. The ball launching apparatus of claim 8 , wherein:
the housing comprises a first opening that receives a first turning shaft, the first turning shaft operatively connecting the tension adjustment knob with the tension gear;
the tension adjustment knob is biased inward towards the housing by means of a compression spring residing along the first turning shaft; and
the tension adjustment knob comprises saw teeth configured to mate with saw teeth in the first opening when the tension adjustment knob is in a default state, but wherein the saw teeth of the tension adjustment knob may be released from the mating saw teeth in the first opening by application of a force pulling the tension adjustment knob away from the first opening for rotation.
10. The ball launching apparatus of claim 5 , wherein:
when actuated, the drive shaft rotates in a counter-clockwise direction; and
when released, the hammer rotates in a clockwise direction to strike the ball.
11. The ball launching apparatus of claim 2 , wherein the housing further comprises:
a raised portion along an upper end of the housing and positioned on a side of the housing adjacent the chute; and
a handle residing along the raised portion.
12. The ball launching apparatus of claim 1 , further comprising:
an angle adjustment knob residing external to the housing, wherein an adjustment of the angle adjustment knob adjusts the angle of the platform relative to the base between 20° and 45°.
13. The ball launching apparatus of claim 12 , wherein:
an adjustment of the angle adjustment knob comprises rotating the angle adjustment knob; and
wherein the apparatus further comprises:
a rotational gear track extending up from a perimeter of the platform; and
an angle gear operatively engaged with the angle adjustment knob, such that rotation of the angle adjustment knob causes the rotational gear track and connected platform to pivot relative to the base.
14. The ball launching apparatus of claim 13 , further comprising:
a pair of pivotal connections residing on opposing sides of the platform, defining a pivot axis for the platform.
15. The ball launching apparatus of claim 13 , wherein:
the housing comprises a second opening that receives a second turning shaft, the second turning shaft operatively connecting the angle adjustment knob with the angle gear;
the angle adjustment knob is biased inward towards the housing by means of a compression spring residing along the second turning shaft; and
the angle adjustment knob comprises saw teeth dimensioned to mate with saw teeth in the second opening when the angle adjustment knob is in a default state, but wherein the saw teeth of the angle adjustment knob may be released from the mating saw teeth in the second opening by application of a force pulling the angle adjustment knob away from the second opening for rotation.
16. The ball launching apparatus of claim 15 , wherein the housing further comprises a first opening that receives a first turning shaft, the first turning shaft operatively connecting the tension adjustment knob with the tension gear.