The present invention is generally directed to a pin assembly that is mounted to a pole vault standard and which supports the cross bar used in pole vaulting events. Specifically, the pin includes a pivoting assembly that allows the pin to collapse or pivot downward when an amount of force is applied thereto.
Pole vaulting is a track and field event in which an athlete uses an elongated and generally flexible pole as an aid to hoist the athlete up and over a cross bar without knocking the cross bar down. The cross bar is supported on or by two uprights or stanchions, often referred to as standards, on opposite sides. In particular, a standard can include a plurality of pins or supports that extend outward from the standard and which are used to support the cross bar, for example, at different heights.
It should be noted that the length of the pin(s), or otherwise the length the pins extend out from the standard, may vary depending on, for example, the particular event or level. For example, collegiate level track and field events, or more specifically collegiate pole vaulting events, may require the pin to have an extension length of 55 millimeters, whereas high school or other pole vaulting events may require the pin to have an extension length of 75 millimeters.
Unfortunately, in some cases, the cross bar and/or the pins or supports that are used to maintain the cross bar in the supported or horizontal position can be dangerous or can cause injuries to the athlete, particularly in the event of a failed attempt to clear the cross bar. For example, in one situation, the athlete may impact the cross bar, for instance anywhere along the length of the cross bar, during an attempt, which often results in a failed attempt to clear the cross bar. However, with the cross bar supported by the pins or other supports connected to or integrated as part of the standards, impacting the cross bar in the air, for example, by falling down onto the cross bar, can create a dangerous and violent situation. Specifically, if the cross bar does not immediately fall or become dislodged from the pins or other supports from the standards, impacting the cross bar during a failed attempt can cause injuries, sometimes rather severe injuries, to the athlete.
In another situation, during an attempt to clear the cross bar, the athlete may inadvertently impact one or more of the pins or other supports that hold or retain the cross bar. As the pins or supports are often rigid and fixed to the standard, when an athlete impacts the pin(s) or support(s) in the air, for example, when falling from a failed (or sometimes even successful) attempt to clear the cross bar, the pin(s) or support(s) can cause severe injuries to the athlete.
Accordingly, there is a need in the art for an improved or novel pin assembly that can support the cross bar in a pole vaulting event, while also being configured to eliminate or minimize potential injury in the event an athlete impacts the pin(s) or the cross bar during an attempt. Specifically, it would be advantageous if the proposed pin assembly could support the cross bar in a resting or horizontal position, while also being capable of collapsing in the event of an impact, either directly on the pin assembly itself, or upon the cross bar. The proposed pin assembly would advantageously be constructed to meet the length requirements of the particular event, if any, as well as other potential standards, requirements or specifications, including, but not limited to impact or force requirements.
Accordingly, the present invention is generally directed to a pin assembly that can be mounted to a standard or upright and which can be used to support the cross bar in a pole vaulting event. In addition, the pin assembly can be safely pivoted between an operative, extended position—for supporting the cross bar—and collapsed position. For instance, when the pin assembly is extended, the cross bar can be supported thereon in a generally horizontal manner, ready for an athlete to attempt to clear the bar. In addition, the pin assembly can be pivoted or collapsed, for example, in a downward direction. When the pin assembly is collapsed, the cross bar may no longer be able to be supported thereon, and the outward extension of the pin assembly from the standard is significantly reduced. Accordingly, the probability that an athlete will be engaged in a violent impact with the cross bar and/or pin assembly, itself, during attempt is eliminated or at a minimum drastically reduced.
For example, the pin assembly of at least one embodiment includes a spring-loaded mechanism that it integral to or disposed at least substantially within the pin. The spring-loaded mechanism keeps the pin in a normal, generally horizontal position until a force is applied to the pin that is greater than the force exerted by the spring-loaded mechanism.
Specifically, a spring-loaded ball or like device may be normally engaged at least partially within or by a concave detent via a coiled spring or other like biasing device. A force exerted upon the top surface of the pin, for example, via a falling athlete, can cause the pin to break away or collapse by disengaging the spring-loaded ball from the detent. In some cases, the pivot point or hinge may be located proximate to (for example, within 0.5 inches) the standard, and thus, the force required to collapse the pin is greater near the cross bar or standard than it is at the outer distal end of the pin. Accordingly, in the event an athlete contacts the end of the pin, the force required to collapse the pin is quite low (e.g., in the range of 3 pounds), and the risk of injury is thereby significantly reduced or even eliminated.
It should also be noted that once the pin is collapsed, for example, either intentionally or via a falling athlete, the pin can be easily readjusted or repositioned back into the operative, extended position. Specifically, simply rotating or pivoting the support arm portion of the pin back up will serve to reengage the biased ball within the detent. Thus, the pin assembly can be reused even after it has been collapsed by simply resetting the pin back into the extended position.
These and other objects, features and advantages of the present invention will become more apparent when the drawings as well as the detailed description are taken into consideration.
Like reference numerals refer to like parts throughout the several views of the drawings provided herein.
As shown in the accompanying drawings, and with particular reference to
For example,
Referring now to
Furthermore, the base 20 is mountable or otherwise connected or fixedly attached to the pole vault standard 1, while the support arm 30 is pivotally disposable between an extended position (
It should be noted that other embodiments of the pin assembly 10 of the present invention may include other or different mounting mechanisms or different configurations of the base 20, 20A in order to facilitate a secure connection to the pole vault standard 1. In any event, the base 20, 20A of the present invention is mounted or mountable to the standard 1, which can be accomplished in a variety of different manners which are within the full spirit and scope of the present invention. For instance, the different mounting mechanisms or the specific configuration of the base 20, 20A may depend on the particular standard 1 upon which the pin assembly 10 is to be mounted.
In any event, with reference to
In some embodiments, the extended position can be defined as the support arm being disposed in a generally horizontal manner, for example, when the pin assembly 10 is mounted to the standard 1. Specifically, with the base 20 mounted to the standard 10, the support arm 30 may extend laterally or horizontally outward, for example, from a corresponding or facing surface 2 of the standard 1. The facing surface 2 can be referred to as the surface of the standard 1 from which the pin assembly 10, and in particular the support arm 30 thereof, extends in order to support the cross bar 5. Since the standard 1 can be constructed in a number of different manners and can therefore have different shapes and configurations, the extended position of the support arm 30 of at least one embodiment can be defined as being generally horizontal to the ground or otherwise in a position capable of supporting the cross bar 5 in a horizontal or level position.
In some embodiments, and in particular, the embodiments illustrated in
However, again, since the base 20, 20A of the various embodiments may have different shapes and configurations, when the support arm 30 is disposed in the extended position, it may not be axially aligned with the base.
Furthermore, as provided herein, the pin assembly 10, and in particular the support arm 30 thereof, is disposable into a collapsed position, such as, when a sufficient amount of force is exerted upon the support arm 30. The collapsed position can be defined as the support arm 30 being pivoted about a pivot joint 12 in a manner such that the support arm 30 is angled when compared to its extended position. For instance, when the pin assembly 10 is mounted to a pole vault standard 1, the collapsed position is defined as the support arm 30 being pivoted at least partially downward, for instance, when a downward force is exerted on a top surface of the support arm 30. In some embodiments, the support arm 30 may pivot approximately ninety degrees (90°) downward, although it is contemplated that the support arms 30 can pivot more or less than 90° within the scope of the various embodiments herein. In any event, when the support arm 30 is collapsed or otherwise pivoted in a generally downward direction, the cross bar 5 will cease to be supported thereon and will fall downward.
Moreover, the pin assembly 10 of the various embodiments of the present invention includes a pivoting assembly, generally referenced as 40, which is structured to maintain the support arm 30 in the extended position, at least until a sufficient counter force or downward force is exerted upon the support arm 30. For instance, in at least one embodiment, the pivoting assembly 40 includes a spring biased ball or other device 42 that is normally engaged within a corresponding detent 45, at least while the support arm 30 is disposed in the extended position.
Specifically, the pivoting assembly 40 of at least one embodiment include a biasing device 43 which is configured to normally or push against a biased device 42. When the support arm 30 is extended, the biased device 42 is pushed into or otherwise biased against or into an at least partially engaging relation with a corresponding detent 45, thereby locking the support arm 30 in place, at least until a sufficient amount of force is exerted thereupon. As provided in the Figures, and with particular reference to
Still referring to
The opposite distal end 43B of the spring 43 or other biasing device of at least one embodiment may be disposed in an engaged relation with a bias adjustment device 47. For instance, the bias adjustment device 47 may be selectively moved in a longitudinal manner, for instance, against the spring 43. Adjustment or movement of the bias adjustment device 47 of at least one embodiment, for example, inward or toward the spring 43 can serve to compress the spring 43 further, thereby strengthening the biasing strength of spring 43 against the ball 42. Similarly, movement of the biasing adjustment device 47 outward, for example, away from the spring 43, can serve to at least partially release or lessen the biasing strength of the spring 43, thereby lessening or weakening the biasing strength of the spring 43 against the ball 42.
In some embodiments, the bias adjustment device 47 includes a threaded screw or other device which can be selectively twisted or screwed toward or away from the spring 43 in order to adjust the biasing strength of the spring 43 against the biased ball 42, as described herein. However, other adjustment devices can be implemented within the spirit and scope of the present invention.
Referring now to the partial cut-away or sectional view of
It should be noted, however, that other embodiments or implementations may include a biased ball 42 or other biased device that has the same or substantially the same radius as the detent 45. In such a case, the force required to dislodge the biased ball 42 from the detent 45 may be greater or the radii can be smaller or adjusted in a way to achieve the same or similar results.
With reference to
Furthermore, once the pin assembly 10, and in particular, the support arm 30 thereof, is collapsed, for example, either intentionally or via a falling athlete, the support arm 30 can be easily repositioned back into the operative, extended position ready for another use or otherwise ready to again support a cross bar 5. Specifically, a user may simply manually rotate or pivot the support arm 30 back up in order to reengage pivoting assembly 40, and in particular, in order to reengage the biased ball 42 with the detent 45. Thus, the pin assembly 10 of at least one embodiment can be reused even after it has been collapsed by simply resetting the support arm 30 back into the extended position.
It should also be noted that the length, width and other dimensions of the pin assembly, including the length/width of the base 20 and the length/width of the support arm 30, may vary, depending on, for example, the particular situation, application, event or the athletes involved. Specifically, different track and field events, tournaments, or situations may require or call for a pin having a particular or different extension length L. The extension length L can be defined as the length or distance the pin assembly 10 extends out from the standard 1, and can thus be measured from the facing surface 2 of the standard 1 (or from a first exposed point or location 13 of the pin assembly 10 that extends or will extend from the standard 1) to the outer distal end 14 of the pin assembly 10. Accordingly, in the embodiments illustrated, the extension length L of the pin assembly may be slightly different than or slightly greater than the length of the support arm 30 in that the base 20 of some embodiments may extend slightly from the standard 1 and thus the length of the base 20 may slightly contribute to the extension length L of the pin assembly 10.
In any event, the exposed or extension length L of the pin assembly 10 of the various embodiments can be different, again, depending on the particular event or situation. As an example, collegiate track and field events, or more specifically collegiate pole vaulting events, may require the pin to have an extension length L of 55 millimeters long, whereas high school track and field or pole vaulting events may require the pin to have an extension length L of 75 millimeters. Of course, other lengths and dimensions of the pin assembly 10, including the extension length L, the length of the base 20 and/or the length of the support arm 30 are contemplated within the full spirit and scope of the present invention, and thus, the dimension provided herein should not be deemed limiting in any manner.
Referring now to
It should also be noted that the force required to dislodge the pivoting assembly or otherwise cause the support arm 30 to pivot into the collapsed position of at least one embodiment is different depending upon where along the length of the support arm 30 the force is applied, and in particular, the distance from pivot joint 12. For instance, still referring to
Assuming, for exemplary purposes only, that the extension length L of the pin assembly 10 illustrated in
In this regard, however, it should be noted that the force required to collapse the support arm is much greater toward the standard 1 or otherwise proximate the cross bar 5 than it is at the outer distal end 14. This allows the pin 10 to collapse or pivot downward easily when contacted, for example, by a falling athlete, at the distal end 14 thereof.
Since other modifications and changes varied to fit particular operating requirements and environments will be apparent to those skilled in the art, the invention is not considered limited to the example chosen for purposes of disclosure, and covers all changes and modifications which do not constitute departures from the true spirit and scope of this invention. This written description provides an illustrative explanation and/or account of the present invention. It may be possible to deliver equivalent benefits using variations of the specific embodiments, without departing from the inventive concept. This description and these drawings, therefore, are to be regarded as illustrative and not restrictive.
Now that the invention has been described,
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