Crowd gate
阅读：414发布：2020-10-15
专利汇可以提供Crowd gate专利检索，专利查询，专利分析的服务。并且A crowd gate for urging animals, for example, cows, toward a desired position as, for example, a milking parlor. The crowd gate includes a carriage which is adapted to ride on an overhead track and which swingably mounts a depending gate which may come into contact with an animal standing on a surface underlying the rails. A motor is operative to drive the carriage and, thus, the gate, along the rails until such time as the gate encounters an animal at which time the motor is de-energized for a predetermined time. After the time has elapsed, the motor is again energized until an animal is again engaged. The system also includes a means for elevating the gate and for reversing the carriage motors so that the carriage in the gate may be returned to a starting position.，下面是Crowd gate专利的具体信息内容。
1. A crowd gate for use in herding animals comprising: a pair of elongated rails adapted to be mounted in an elevated relationship on opposite sides of an animal walkway; a carriage extending between and riding on said rails, said carriage having a front end and a rear end; a motor mounted on said carriage and energizable to drive said carriage back and forth on said rails; a gate pivotally affixed to the front end of said carriage and depending therefrom, said gate being adapted to engage an animal on the walkway; means on said carriage for pivoting said gate rearwardly thereon to elevate the same whereby said gate may pass over a animal on the walkway; and means for controlling said motor including an animal sensing means associated with said gate, a timing device and an interconnected control circuit responsive to the engagement of said gate with an animal for deenergizing said motor for a predetermined time and thereafter reenergizing said motor until an animal again is encountered by said gate.
2. Apparatus according to claim 1 wherein said means for pivoting said gate rearwardly on said carriage includes a selectively operable motor.
3. Apparatus according to claim 1 further including limit sensing means at opposite ends of at least one of said rails for de-energizing said motor to preclude further movement of said carriage toward the respective end of said rails when the carriage is at the respective end of said rails.
4. Apparatus according to claim 1 wherein said motor is operative to drive said carriage along said rails by means of wheels engaging said rails and driven by said motor, said means having a rail engaging surface formed of a material having a coefficient of friction sufficiently high so as to provide positive drive power and sufficiently low to allow slippage when movement of said carriage is obstructed while said motor is energized.
5. Apparatus according to claim 1 wherein said means for pivoting said gate rearwardly on said carriage includes a motor driven winch mounted on said carriage and a flexible cable extending therefrom and connected to a lower portion of said gate.
6. Apparatus according to claim 5 further including a control circuit for said motor driven winch, said control circuit including means for causing said winch to be driven bi-directionally, means for de-energizing said motor driven winch when said gate is at a first position depending from said gate carriage after being driven by said motor driven winch, and means for de-energizing said motor driven winch when said gate is in a position approximately parallel to said carriage after being pivoted rearwardly by said motor driven winch.
7. Apparatus according to claim 1 wherein said carriage further includes structural elements interconnecting said front end and said rear end, said front end and said rear end being substantially identical one to the other.
8. Apparatus according to claim 7 wherein means are provided whereby the width of said carriage may be selectively adjusted upon installation.
9. A crowd gate for use in herding animals comprising: elongated rail means adapted to be mounted in an elevated relationship relative to an animal walkway; a carriage riding on said rail means; a motor mounted on said carriage and energizable to drive said carriage back and forth on said rail means; a gate affixed to said carriage and depending therefrom, said gate being configured to substantially span the walkway and being adapted to engage an animal on the walkway; and means for controlling said motor including an animal sensing means associated with said gate, a timing device and an interconnected control circuit responsive to the engagement of said gate with an animal for de-energizing said motor for a predetermined time and thereafter re-energizing said motor until an animal again is encountered by said gate.
10. Apparatus according to claim 9 wherein said animal sensing means comprises switch means associated with said gate and operable to energize said timing device when said gate engages an animal, said timing device being arranged in circuit with said motor to de-energize said motor when said timing device is energized.
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