This application contains subject matter related to subject matter contained in co-pending U.S. Ser. No. 13/570,582 filed on Aug. 9, 2012 and incorporated herein by reference.
Regulated and time-efficient passage through an entrance continues to be a problem. Entry systems traditionally provide a means of passage to a closed, or fenced in area. Such entry systems are typically maintained in a closed and latched position to prohibit or restrict entrance. Operation of entry systems often requires egress of a driver from a vehicle to operate the entry system. The driver must exit the vehicle to operate the entry system, thereby expending time during operation.
Self-regulating gating systems are known which employ bumper assemblies activated by a vehicle. However, bumper assemblies may strike or damage a vehicle during passage. Bumper assemblies can often be unintentionally activated by wind or livestock. Moreover, the excess weight of bumper assemblies exerts increased load pressures on hinge assemblies, resulting malfunction and damage. Therefore, a need exists for an improved self-closing hanging system which allows regulated and time-efficient passage through an entrance.
The present invention is directed towards an improved self-closing hanging system for regulated and time-efficient passage through an entrance. The self-closing hanging system includes an upright support post, which has a cam surface. A post member is concentrically disposed within the upright support post, extending at an opposing end to a receiver member. At least one bearing member extends from the post member as follower to the cam surface. A hinge post extends parallel with the upright support post, separated a distance from the upright support post, and inserted at its upper end into the receiver member. A support arm is inserted into the receiver member. A hinge bearing structure is located between the hinge post and upright support member. The upright support post is filled with a fluid. A bumper hanging assembly is attached to the upright support post. A bumper assembly is attached to the bumper hanging assembly. The bumper assembly defines a first bumper frame member attached to a fulcrum, a first bumper contact element capable of independent axial rotation in relation to the first bumper frame member, a second bumper frame member attached to the fulcrum, a second bumper contact element capable of independent axial rotation in relation to the second bumper frame member. The first bumper frame member and second bumper frame member exist as a contiguous assembly, forming a lever capable of rotation about the fulcrum, as a continuous force is applied to either of the first bumper contact element or second bumper contact element in during opening. The fulcrum is located on the bumper hanging assembly. A counter-balance assembly extends from the first bumper frame member to the second bumper frame member, causing opposing axial rotation between the first bumper frame member and the second bumper frame member. The counter-balance assembly further causes the first bumper frame member to maintain a first central angle between the entrance member which approximately equivalent to a second central angle between the second bumper frame member and the support arm. A reset mechanism extends between the bumper hanging assembly and bumper assembly, causing the position of the bumper assembly relative to the support arm to reset when the force is removed from either the first bumper contact element or second bumper contact element.
These and other features, aspects and advantages of embodiments of the invention will become better understood with regard to the following description, appended claims, and accompanying drawings where:
Referring to
Referring to
Support arm 66 extends longitudinally perpendicular from hinge post 39. An entrance member 60 (such as a gate, or cattle guard, for example) may be attached by an attachment means. Attachment means of the preferred embodiment comprises a set of j-bolts 69a, 69b securably fastening entry member 60 to entrance support arm 66. The entrance member 60 of the preferred embodiment illustrates a structure with a number of support beams 67. However, any type of suitable entry member may be substituted.
Referring to
Referring to
Upright support post 12 is filled with a fluid 28. The fluid 28 of the preferred embodiment is a viscous lubricant serving to further distribute point load pressures. The fluid 28 also acts to reduce friction between upright support post 12 and bearing outer surfaces 21a. In the preferred embodiment, fluid 28 is a colligative agent such as ethylene glycol. However, other suitable fluids may be used.
Referring to
Referring to
First and second Bumper frame members 81, 84 have one or more upright frame members 81a, 83a, and one or more traverse members 81b, 83b. A clevis pin 82e rotatably attaches first and second bumper frame members 81, 84 to fulcrum 86. In the preferred embodiment, fulcrum 86 is located at the approximate center of bumper hanging assembly 20, as shown in
Relative motion of bumper assembly 80 with respect to support arm 66 is illustrated in
First bumper frame member 81 and said second bumper frame member 83 exist as a contiguous assembly, forming a simple lever capable pivoting about fulcrum 86. Counter-balance assembly 89, extends from first bumper contact element 82 to second bumper contact element 84, through pivot member 88. Counter-balance assembly 89 is an elongate tensile structure. In the preferred embodiment, counter-balance assembly 89 is a metal chain. However, counter-balance assembly 89 may be other types of suitable tensile structures, such as elastic cable, for example. Tension of counter-balance assembly 89 causes opposing axial rotation between first bumper frame member 81 and second bumper frame member 83. As illustrated in
Referring to
Embodiments of the invention may be used for entrance of a vehicle through the gate system. In the example of passage of a vehicle, the support arm 66 first exists in a first reset position 1 (as shown in
Vehicle continues to move forward, as bumper contact member 82 axially rotates along periphery of vehicle. Second bumper frame member 83 and second bumper contact member 84 rotate in the opposite direction (in relation to first bumper frame member 81 and first bumper contact element 82) such that weight of bumper assembly 80 is distributed evenly with respect to fulcrum 86, thereby preventing weight from increasing support arm 66 acceleration towards the vehicle during closing.
Vehicle continues forward, as roller bearing 36 travels along upper cam surface 31, thereby causing support arm 66 to swing open in relation to support post 12. As vehicle continues forward, first bumper contact member 82 rolls against outer periphery of vehicle until vehicle has exited, at which support arm is in second rotatable position 2 (as shown in
After vehicle exit, bumper assembly 80 then begins to rotate back to first reset position 1 (as shown in
The advantage of the foregoing structure allows operation in a controlled manner, without damaging the vehicle. The placement, type, and composition of equivalent components can be substituted as necessary to control the rate of axial rotation of the support arm and attached gate towards a closed position.
As one bumper contact element and bumper frame member rotates with the vehicle, the opposing bumper contact element and bumper frame member oppositely rotate with respect to support arm. Such opposite rotation distributes the weight of the entire bumper assembly, such that the bumper assembly does not easily return and strike the vehicle.
The hinge bearing arrangement reduces the angular momentum of the entrance member during opening and closing, thereby preventing the bumper assembly from striking the vehicle. Such an arrangement also allows regulated time of the vehicle time for passage.
Incorporation of bearings (such as linear bearings) along the upright support post restricts shearing forces and distributes point loads exerted at the cam surface. The bearings also reduce angular velocity of post member, thereby allowing smooth operating of the support post. Fluid within the upright support post reduces friction with the post member.
Opening of the support arm requires continuous application of a force across bumper surfaces. A vehicle must continue to axially rotate the bumper assembly for the support arm to open. As such, a quick introduction of a force (such as a force introduced by livestock) at the bumper assembly will not cause the support arm to open. Moreover, bumper surfaces extend in a curvilinear manner, limiting the number of wind catching surfaces.
Any element in a claim that does not explicitly state “means for” performing a specified function, or “step for” performing a specific function, is not to be interpreted as a “means” or “step” clause as specified in 35 U.S.C. §112, ¶ 6. In particular, the use of “step of” in the claims herein is not intended to invoke the provisions of 35 U.S.C. §112, ¶ 6.
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