U.S. patent application number 11/520329 was filed with the patent office on 2007-03-22 for clutch and detection means for paintball marker loader.
This patent application is currently assigned to National Paintball Supply, Inc.. Invention is credited to David Bell.
Application Number | 20070062506 11/520329 |
Document ID | / |
Family ID | 37865575 |
Filed Date | 2007-03-22 |
United States Patent
Application |
20070062506 |
Kind Code |
A1 |
Bell; David |
March 22, 2007 |
Clutch and detection means for paintball marker loader
Abstract
A drive system for a paintball loader has a motor driven shaft
rotatable about a central axis, a drive mechanism attached to the
drive shaft, a feed mechanism carrier adjacent the drive mechanism
and rotatable about the drive shaft. The drive shaft and the feed
mechanism are engaged through a slip clutch and a sensor detects
any slippage between them, and sends a corresponding disabling
signal to the motor.
Inventors: |
Bell; David; (Mullica Hill,
NJ) |
Correspondence
Address: |
VOLPE AND KOENIG, P.C.
UNITED PLAZA, SUITE 1600
30 SOUTH 17TH STREET
PHILADELPHIA
PA
19103
US
|
Assignee: |
National Paintball Supply,
Inc.
Sewell
NJ
|
Family ID: |
37865575 |
Appl. No.: |
11/520329 |
Filed: |
September 13, 2006 |
Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
|
|
60716478 |
Sep 13, 2005 |
|
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Current U.S.
Class: |
124/51.1 ;
124/49 |
Current CPC
Class: |
F41B 11/53 20130101;
F41B 11/57 20130101 |
Class at
Publication: |
124/051.1 ;
124/049 |
International
Class: |
F41B 11/02 20060101
F41B011/02 |
Claims
1. A drive system for a paintball loader comprising: a motor that
drives a drive shaft rotatable about a central axis; a clutch plate
engaged to the drive shaft; a drive cone that rotates about the
central axis; a controller that controls the motor; wherein the
clutch plate drives the rotation of the drive cone in a
clutch-driven engagement; wherein when the clutch plate slips
against the drive cone, the controller receives a signal, and in
turn transmits a signal to the motor that disables the motor.
2. A drive system for a paintball loader comprising: a motor that
drives a drive shaft rotatable about a central axis; a clutch plate
engaged to the drive shaft and that drives a drive cone about the
central axis in a clutch-driven engagement, the drive cone
configured to direct paintballs from the loader to a paintball
marker; a controller that controls the motor; wherein in response
to the clutch plate slipping against the drive cone, the controller
disables the motor for a predetermined time period.
3. The drive system of claim 2, further comprising a sensor on the
clutch plate that detects when the clutch plate slips against the
drive cone and upon detection of the slippage, sends a
corresponding signal to the controller.
4. The drive system of claim 2, further comprising a sensor on the
drive cone that detects when the clutch plate slips against the
drive cone and upon detection of the slippage, sends a
corresponding signal to the controller.
5. The drive system of claim 2, further comprising a sensor that
detects torque on the drive shaft, and upon detection of a
predetermined amount of torque, sends a corresponding signal to the
controller.
6. The drive system of claim 2, further comprising a sensor that
detects torque on the drive shaft, and upon detection of a
predetermined change in torque, sends a corresponding signal to the
controller.
7. The drive system of claim 2, further comprising a sensor that
detects torque on the motor, and upon detection of a predetermined
amount of torque, sends a corresponding signal to the
controller.
8. The drive system of claim 2, further comprising a sensor that
detects torque on the motor, and upon detection of a predetermined
change in torque, sends a corresponding signal to the
controller.
9. A drive system for a paintball loader comprising: a motor that
drives a drive shaft rotatable about a central axis; a clutch plate
engaged to the drive shaft and that drives a drive cone about the
central axis in a clutch-driven engagement, the drive cone
configured to direct paintballs from the loader to a paintball
marker; a controller that controls the motor; wherein in response
to the clutch plate slipping against the drive cone, the controller
operates the motor in reverse for a predetermined period of time.
Description
CROSS REFERENCE TO RELATED APPLICATION(S)
[0001] This application claims the benefit of U.S. Provisional
Patent Application 60/716,478 filed Sep. 13, 2005 which is
incorporated by reference as if fully set forth.
FIELD OF INVENTION
[0002] This invention relates to the sport of paintball and
equipment for playing paintball games. Specifically, it is a device
for use with a paintball loader that rotates a feeder, allows the
feeder to operate despite a paintball jam and significantly reduces
the likelihood that the feeder, loader or paintballs will be
damaged if paintballs jam.
BACKGROUND
[0003] Paintball is played on a field by two teams. The object of
most games is to "capture" the opposing team's flag before they
capture yours. Each player is armed with a paintball marker, which
is generally, a gun that shoots spherical gelatin capsules filled
with a non-toxic paint, called "paintballs" under the force of
compressed gas. If a player is hit with a paintball fired by a
marker of a player on the opposing team he or she is eliminated
from the game.
[0004] Paintball loaders sit atop the markers and feed paintballs
into the marker. They are comprised of a hopper (the terms "hopper"
and "loader" are used interchangeably herein) which stores
paintballs, and has an outlet or exit tube. The outlet tube is
connected to an inlet tube of a paintball marker, which is in
communication with the breech of the paintball marker. Many hoppers
also contain an agitator or drive system, which is usually
performed by an impeller, projection, drive cone, agitator, paddle,
arm, fin, carrier, or any other mechanism, such as those shown and
described in U.S. Pat. Nos. 5,954,042, 6,213,110, and 6,792,933,
all incorporated by reference as if fully set forth herein. In a
gravity feed type hopper, the agitator mixes paintballs so that no
jams occur at the exit tube. In a force feed drive system hopper,
the agitator forces paintballs through the exit tube. Because it is
desirable to eliminate as many opposing players as possible,
paintball markers are capable of rapid fire. To accommodate this,
paintball hoppers hold a large amount of paintballs and the
agitators are capable of feeding these paintballs to the marker
rapidly.
[0005] While this allows for rapid fire, it also increases the
likelihood that paintballs will jam in the outlet and/or inlet
tubes and thereby "back-up" into hopper. In the loaders currently
known in the art, the feeder or agitator continues to rotate
despite the jam. Thus, the impellers of the feeder or agitator
continue to try to drive paintballs through the jammed tubes. This
often stops the feeding of paintballs, damages the paintballs and
sometimes renders the feeder or loader inoperable. Thus, there is a
need for a drive system for a paintball loader that controls the
rotation of a feeder or agitator when paintballs jam, and shuts off
the motor driving the agitator. There is also a need for a device
frees up the jam and begins rotating immediately once the jam is
cleared so that a player may resume play quickly. The present
invention satisfies these needs.
SUMMARY
[0006] The present invention is a drive system for a paintball
loader comprising a motor driven shaft rotatable about a central
axis, a drive mechanism attached to the drive shaft, a feed
mechanism carrier adjacent the drive mechanism and rotatable about
the drive shaft, wherein the drive shaft and the feed mechanism are
engaged through a slip clutch.
[0007] The present invention is a drive system for a paintball
loader comprising a stepper motor driven shaft rotatable about a
central axis, a drive mechanism attached to the drive shaft, a feed
mechanism carrier adjacent the drive mechanism and rotatable about
the drive shaft, wherein the drive shaft and the feed mechanism are
engaged through a slip clutch.
[0008] In every embodiment disclosed below, the present invention
is easily "retrofitted" so that it can be used with all existing
styles of paintball loaders, including, but not limited to "force
feed", "active feed", and "agitating" loaders.
BRIEF DESCRIPTION OF THE DRAWINGS
[0009] FIG. 1 is an elevation view of a loader attached to a
paintball marker.
[0010] FIG. 2 is a bottom isometric view of a paintball feed
mechanism according to the present invention.
[0011] FIG. 3 is a top isometric view of a paintball feed mechanism
according to the present invention.
[0012] FIG. 4 is a bottom isometric view of a paintball feed
mechanism according to the present invention.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0013] As used herein, the term "paintball feeder", "feed
mechanism", "feeder", or "paintball impeller" refers to any
apparatus that impels paintballs from a hopper into a gas gun
breech.
[0014] FIG. 1 is a side elevational view of a rapid feed paintball
loader 40 operatively attached to a representative paintball gun 20
illustrated in phantom. The paintball gun 20 includes a main body
22, a compressed gas cylinder 24, a front handgrip 26, a barrel 28,
and a rear handgrip 30. The paintball gun also includes an inlet
tube 32 leading to a firing chamber (not shown) in the interior of
the main body and a trigger 34. The front handgrip projects
downwardly from the barrel and provides an area for gripping by an
operator of the paintball gun. The compressed gas cylinder is
typically secured to a rear portion of the paintball gun. The
compressed gas cylinder normally contains carbon dioxide, although
any compressible gas may be used.
[0015] In operating the paintball gun 20, the trigger 34 is
squeezed, thereby actuating the compressed gas cylinder to release
bursts of compressed gas. The bursts of gas are used to eject
paintballs 53 outwardly through the barrel 28. The paintballs are
continually fed by the paintball loader 40 through its outlet tube
52 to the inlet tube 32, and then to the firing chamber. The actual
feed is done by gravity, but jams in the outlet tube 52 are
discouraged by a motorized feed assembly 140 located within the
loader 40, which is shown in more detail in FIGS. 2 and 3.
[0016] The feed assembly comprises several embodiments, the first
of which comprises a drive cone 100, clutch plate 108, drive shaft
300, and motor 400. The drive cone 100 rotates about axis 204 and
has fins 104 hold and drive the paintballs 53 towards the outlet
tube 52 to prevent jamming and facilitate loading.
[0017] The motor 400 drives the drive shaft 108, which in turn
drives the clutch plate 200. The clutch plate 200 engages and
drives a clutch engaging surface 106 on the bottom of the drive
cone 100. During a situation where the ball jams, rather than the
motor 400 continuing to drive the fins 104 and crush the paintball
53, the clutch plate 200 slips against the drive cone's engaging
surface 106 when the engaging surface 106 exerts a predetermined
amount of resistance to the rotational force applied by the clutch
plate (this resistance could be modified by the user or a
predetermined setting from the factory).
[0018] When this slippage occurs, sensors 109 and/or 209 in the
drive cone 100 and clutch plate 200 respectively, detect the
slippage and relay a signal to a controller 500. The controller, on
receipt of the signal, sends a disabling signal to the motor 400
that turns off the motor until the jam is cleared.
[0019] The sensors 109, 209 may be located at one or both of the
drive cone and clutch plate. They may also be adapted to measure
the torque on the driveshaft, or even the torque on the motor, so
long as they send a signal to the controller that in turn disables
the motor upon slippage.
[0020] In the embodiment shown in FIG. 4, the clutch mechanism is a
rotary clutch 200a, it being understood that other clutches could
be used, including clutches between the motor and driveshaft 108
and those built into the drive mechanism of the motor.
[0021] In another embodiment of the present invention, the motor is
a stepper motor, as is known in the art. Any type of motor may be
substituted for the stepper motor. A motor controller is provided,
including at least one sensor. The controller may be provided as an
electrical circuit, and may be a circuit including a
microprocessor.
[0022] When an extension of the feed mechanism encounters a jammed
paintball, a signal is sent to the controller that a jam has
occurred. The controller sends a signal to the motor to cease
turning the drive shaft in the direction it is initially rotating
(for example, counterclockwise), and to turn in the opposite
direction (i.e., clockwise) for a period of time T. The time T may
be set in the controller, or may be user-selectable. Similarly, the
controller may be set to turn the motor in the opposite direction
for an angular distance D, which may be a portion of a rotation, a
full rotation in the opposite direction, or a plurality of
rotations. After time T, or distance D, the controller will send a
signal back to the motor to rotate the drive shaft back in the
original direction (i.e., counterclockwise). In this manner, the
jam will be cleared.
[0023] The sensor may be provided, for example, as a torsion sensor
adapted to measure the torque on the feed mechanism or may be
provided as a sensor for detecting the position of the feed
mechanism or if the feed mechanism ceases moving. For example, an
optical sensor having an emitter and a receiver may be used to
detect the movement of the feed mechanism, and may be position
within the loader body to detect such position.
[0024] It is thus believed that the operation and construction of
the present invention will be apparent from the foregoing
description. While the apparatus shown and described has been
characterized as being preferred, it will be readily apparent that
various changes and modifications could be made therein without
departing from the scope of the invention as defined in the
following claims.
[0025] Having thus described in detail several embodiments of the
present invention, it is to be appreciated and will be apparent to
those skilled in the art that many physical changes, only a few of
which are exemplified in the detailed description of the invention,
could be made without altering the inventive concepts and
principles embodied therein. It is also to be appreciated that
numerous embodiments incorporating only part of the preferred
embodiments are possible which do not alter, with respect to those
parts, the inventive concepts and principles embodied therein. The
present embodiment and optional configurations are therefore to be
considered in all respects as exemplary and/or illustrative and not
restrictive, the scope of the invention being indicated by the
appended claims rather than by the foregoing description, and all
other embodiments and changes to this embodiment which come within
the meaning and range of equivalency of said claims are therefore
to be embraced therein.
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