Swing gate operator

• US 20110302841A1
• Filed: 06/14/2010
• Published: 12/15/2011
• Est. Priority Date: 06/14/2010
• Status: Abandoned Application

• Current Assignee: Hangzhou Sanford Tools Co., Ltd.
• Original Assignee: Hangzhou Sanford Tools Co., Ltd.
• Inventors: Ye, Bingmao, Hu, Songyan
• Application Number:
  US12/802,830
• Publication Number:
  US 20110302841A1
• Time in Patent Office: Days
• US Class Current: 49/340
• CPC Class Codes: E05F 15/622 using screw-and-nut mechanisms
• CPC Class Codes: E05Y 2201/218 Holders
• CPC Class Codes: E05Y 2201/462 Electromagnets
• CPC Class Codes: E05Y 2201/624 Arms
• CPC Class Codes: E05Y 2800/372 Telescopically
• CPC Class Codes: E05Y 2800/748 end
• CPC Class Codes: E05Y 2900/40 for gates

Abstract

A swing gate operator for automatically and manually operating the gate opener for movably controlling the gate between an opened position and closed position, wherein the swing gate operator includes a gear motor being housed in a casing, a clutch device operatively coupling with an output end of the gear motor, and an operation arm having an outer sleeve outwardly extending from the casing. The operation arm includes at least one extendable shaft operatively coupling with the clutch device for slidably extending within the outer sleeve to operatively moving the gate between an opened position and a closed position.

Claims

1. A swing gate operator, comprising:

a gear motor being housed in a casing;

a clutch device operatively coupling with an output end of said gear motor;

an operation arm having an outer sleeve outwardly extending from said casing, wherein said operation arm comprises at least an extendable shaft operatively coupling with said clutch device by one end thereof via a thread drive arrangement for being driven to reciprocatively shift within said outer sleeve along an axis direction of said operation arm and coupling with a gate by an opposed end of said extendable shaft extending out of an opening of said outer sleeve for operatively moving said gate between an opened position and a closed position.

2. The swing gate operator, as recited in claim 1, wherein said thread drive arrangement comprising a guide screw having a plurality of outer threads and a nut element having corresponding inner threads for rotatably engaging with said outer threads, wherein said guide screw is coupling with said clutch device for being driven to reciprocatively rotate by one end and outwardly and elongatedly extending toward said opening of said outer sleeve, wherein said nut element is being driven by said guide screw to slidably and reciprocatively move along said guide screw in said axis direction, wherein said extendable shaft is coupling with said nut element for being driven to reciprocatively and extendably move along said axis direction for extendably controlling an opening operation of moving said gate at said opened position and a closing operation of moving said gate at said closed position.

3. The swing gate operator, as recited in claim 2, wherein said clutch device comprises a first clutch member operatively connecting to said output end of said gear motor, a second clutch member insertably interlocking with said first clutch member, and a third clutch member connected with said second clutch by one end and connected to said guide screw by the other end thereof for rotatably driving said guide screw to rotate.

4. The swing gate operator, as recited in claim 3, wherein said first clutch member has an outer hexagonal shaped portion and said second clutch member has an inner hexagonal shaped portion in according to said outer hexagonal shaped portion of said first clutch member for insertably receiving said first clutch member, so as to interlockingly connect said first and second clutch members.

5. The swing gate operator, as recited in claim 1, wherein a magnetic limit system is provided for limiting said opening and closing operation of said reciprocatively shifting movement of said extendable shaft for adjustably determining said opened position and said closed position of said gate in a magnetic detecting manner.

6. The swing gate operator, as recited in claim 3, wherein a magnetic limit system is provided for limiting said opening and closing operation of said reciprocatively shifting movement of said extendable shaft for adjustably determining said opened position and said closed position of said gate in a magnetic detecting manner.

7. The swing gate operator, as recited in claim 4, wherein a magnetic limit system is provided for limiting said opening and closing operation of said reciprocatively shifting movement of said extendable shaft for adjustably determining said opened position and said closed position of said gate in a magnetic detecting manner.

8. The swing gate operator, as recited in claim 5, wherein said magnetic limit system comprises a magnetic member at said nut element, an opening magnetic switch positioned at a sliding track elongatedly extending within said outer sleeve at a location adjacent to an inner end of said outer sleeve, and a closing magnetic switch positioned at said sliding track adjacent to an outer end of said outer sleeve, in such a manner that said magnetic member is reciprocatively sliding along said guide screw to generate a corresponding signal of a shifting location of said extendable shaft for limiting said shifting movement of said extendable shaft in responsive to a detected magnetic strengths between said magnetic member and said opening magnetic switch or closing magnetic switch.

9. The swing gate operator, as recited in claim 6, wherein said magnetic limit system comprises a magnetic member at said nut element, an opening magnetic switch positioned at a sliding track elongatedly extending within said outer sleeve at a location adjacent to an inner end of said outer sleeve, and a closing magnetic switch positioned at said sliding track adjacent to an outer end of said outer sleeve, in such a manner that said magnetic member is reciprocatively sliding along said guide screw to generate a corresponding signal of a shifting location of said extendable shaft for limiting said shifting movement of said extendable shaft in responsive to a detected magnetic strengths between said magnetic member and said opening magnetic switch or closing magnetic switch.

10. The swing gate operator, as recited in claim 7, wherein said magnetic limit system comprises a magnetic member at said nut element, an opening magnetic switch positioned at a sliding track elongatedly extending within said outer sleeve at a location adjacent to an inner end of said outer sleeve, and a closing magnetic switch positioned at said sliding track adjacent to an outer end of said outer sleeve, in such a manner that said magnetic member is reciprocatively sliding along said guide screw to generate a corresponding signal of a shifting location of said extendable shaft for limiting said shifting movement of said extendable shaft in responsive to a detected magnetic strengths between said magnetic member and said opening magnetic switch or closing magnetic switch.

11. The swing gate operator, as recited in claim 1, further comprising a manual switch arrangement for selectively manually operating said operation arm for controllably moving said gate between said opened and closed positions, wherein said manual switch arrangement comprises a locking member, a cam, and a shift fork operatively engaging with said third clutch member, wherein said cam is arranged to be driven by said locking member to actuate said shift fork for disengaging said second clutch member and said third clutch member, so as to manually operate said operation arm.

12. The swing gate operator, as recited in claim 8, further comprising a manual switch arrangement for selectively manually operating said operation arm for controllably moving said gate between said opened and closed positions, wherein said manual switch arrangement comprises a locking member, a cam, and a shift fork operatively engaging with said third clutch member, wherein said cam is arranged to be driven by said locking member to actuate said shift fork for disengaging said second clutch member and said third clutch member, so as to manually operate said operation arm.

13. The swing gate operator, as recited in claim 10, wherein said locking member is a triangular locker for being driven to movably actuate said cam, so as to actuate said shift fork for disengaging said second and third clutch members.

14. The swing gate operator, as recited in claim 1, wherein said gear motor is a worm gear motor.

15. The swing gate operator, as recited in claim 2, wherein said gear motor is a worm gear motor.

16. The swing gate operator, as recited in claim 13, wherein said gear motor is a worm gear motor.

17. The swing gate operator, as recited in claim 2, wherein said guide screw is a trapezoid shaped guide screw and said nut element is a trapezoid shaped nut element in accordance to said trapezoid guide screw.

18. The swing gate operator, as recited in claim 16, wherein said guide screw is a trapezoid shaped guide screw and said nut element is a trapezoid shaped nut element in accordance to said trapezoid guide screw.

19. The swing gate operator, as recited in claim 1, wherein a stopper is provided at an outer peripheral opening of said outer sleeve for restraining said shifting movement of said extendable shaft therethrough.

20. The swing gate operator, as recited in claim 18, wherein a stopper is provided at an outer peripheral opening of said outer sleeve for restraining said shifting movement of said extendable shaft therethrough.