Solenoid operated electric strike

• US 3,910,617 A
• Filed: 06/20/1973
• Issued: 10/07/1975
• Est. Priority Date: 02/20/1972
• Status: Expired due to Term

• Current Assignee: Trine Products Corporation
• Original Assignee: Anthony J. Scalza, William G. Brown
• Inventors: Scalza, Anthony J., Brown, William G.
• Primary Examiner(s): Moore, Richard E.
• Application Number:
  US05/371,576
• Time in Patent Office: 839 Days
• Field of Search: 292/144,201,341.16 70/277,280,281,282,447,448
• US Class Current: 292/341.16
• CPC Class Codes: E05B 47/0047 Striker rotating about an axis parallel to the wing edge
• CPC Class Codes: Y10T 292/699 Motor controlled

Abstract

An electric strike with a pivotally mounted catch which is locked by a pivotally mounted detent engageable with a pivotally mounted detent arm controlled by the catch, movement of the detent being controlled by an electrically energizable solenoid and moveable core assembly which has a portion of the core extending outwardly of the solenoid, the core being pivotally interconnected with the detent and said portion of the core moving inwardly of the solenoid upon energization of the latter. The detent arm may be omitted and the detent may, in such case, engage a pin carried by the catch.

Claims

1. An electric strike comprising a pivotally mounted catch, a detent pivotally mounted for movement of a portion thereof from a first position near said catch to a second position farther from said catch, means controlled by said catch and engageable with said portion of said detent in one of said positions for preventing rotation of said catch and movable with respect to said portion of said detent in the other position thereof to permit rotation of said catch, and electrically energizable solenoid with a movable core therein with a portion thereof extending from said solenoid, said solenoid, when energized, causing said portion of the core to move in a direction toward the interior of said solenoid and an interconnecting member extending from said core to said detent and pivotally connected at one end thereof to said core and pivotally connected at the other end thereof to said detent for moving said detent from said second position to said first position upon movement of said core in said direction.

2. An electric strike comprising a pivotally mounted catch, a detent pivotally mounted for movement of a portion thereof from a first position near said catch to a second position farther from said catch, means controlled by said catch and engageable with said portion of said detent in one of said positions for preventing rotation of said catch and movable with respect to said portion of said detent in the other position thereof to permit rotation of said catch, an electrically energizable solenoid with a movable core therein with a portion thereof extending from said solenoid, said solenoid, when energized, causing said portion of the core to move in a direction toward the interior of said solenoid, and a U-shaped rod pivotally connected at one end to said pOrtion of said core and at its opposite end to said detent for moving said detent from said second position to said first position upon movement of said core in said direction, said rod having its intermediate portion extending alongside said solenoid.

3. A strike as set forth in claim 2, wherein said means engageable with said detent comprises a pivotally mounted arm having its pivot axis parallel to the pivot axis of said catch and having an projection thereon upstanding therefrom in the direction of said pivot axis and engageable with said detent in said one position thereof, said catch having means thereon engageable with said arm for preventing rotation of said arm with respect to said catch in a predetermined direction but permitting rotation of said arm with respect to said catch in a direction opposite to said predetermined direction.

4. A strike as set forth in claim 3, wherein said projection on said arm is engageable with said detent in said first position of the latter.

5. A strike as set forth in claim 3, wherein said projection on said arm is engageable with said detent in said second position of the latter.

6. An electric strike as set forth in claim 2, wherein said means engageable with said detent comprises a projection on said catch spaced from the pivot axis of said catch and extending therefrom in the direction of said detent.

7. An electric strike comprising a relatively long and narrow base, a catch pivotally mounted from said base with its pivot axis extending in the direction of the length of said base, stop means on said base for limiting the movement of said catch in a first direction around the pivot axis thereof, spring means acting between said base and said catch and urging said catch in said first direction, an electrically energizable solenoid with an axially moveable core mounted on said base with the axis thereof extending substantially parallel to the pivot axis of said catch, with the solenoid spaced from said catch in the direction of the length of said base and with a portion of said core extending from said solenoid on the side thereof opposite from said catch, said portion of said core moving in a direction toward the interior of said solenoid upon energization of the latter, a detent pivotally mounted from said base intermediate said solenoid and said catch and with the pivot axis thereof extending transversely to the pivot axis of said catch, a lever pivotally connected at one end to said portion of said core and extending to and being pivotally connected to a portion of said detent spaced from the pivot axis thereof, said lever moving said detent from a first position nearer said solenoid to a second position nearer said catch upon energization of said solenoid, spring means urging said detent and said portion of said core away from said catch and urging said detent into said first position thereof, an arm pivotally mounted from said base on the side of said catch nearer said detent and between said catch and said detent with its pivot axis spaced from the pivot axis of said catch and extending substantially parallel thereto, said arm having a projection thereon extending, at least in part, toward said detent and being free to move with respect to said detent when the latter is in one of said positions thereof but being engageable with said detent in the other position thereof to prevent movement of said arm with respect to said detent, and means on said catch engageable with said arm for preventing rotation of said catch around its axis in a direction opposite to said first direction when said projection on said arm is in engagement with said detent.

8. A strike as set forth in claim 7, wherein said projection on said arm engages said detent when the latter is in said second position.

9. A strike as set forth in claim 7, wherein said projection on said arm engages said detent when the latter is in said first position.

10. A strike as set forth in claim 9, wherein said projection oN said arm is L-shaped and the portion thereof spaced from said arm is spaced from the latter by an amount sufficient to permit said detent to pass between said arm and said portion when said detent is in said second position.

11. An electric strike comprising a relatively long and narrow base, a catch pivotally mounted from said base with its pivot axis extending transversely to the length of said base, stop means on said base for limiting movement thereof in a first direction around the pivot axis thereof, spring means acting between said base and said catch and urging said catch in said first direction, an electrically energizable solenoid with an axially moveable core mounted on said base with the axis thereof extending transversely to the pivot axis of said catch, with the solenoid spaced from said catch in the direction of the length of said base and with a portion of said core extending from said solenoid on the side thereof opposite from said catch, said portion of said core moving in a direction toward the interior of said solenoid upon energization of the latter, a detent pivotally mounted from said base intermediate said solenoid and said catch and with the pivot axis thereof extending substantially parallel to the pivot axis of said catch, a lever pivotally connected at one end to said portion of said core and extending to and being pivotally connected to a portion of said detent spaced from the pivot axis thereof, said lever moving said detent from a first position nearer said solenoid to a second position nearer said catch upon energization of said solenoid, spring means urging said detent and said portion of said core away from said catch and urging said detent into said first position thereof, an arm pivotally mounted from said base with its pivot axis spaced from the pivot axis of said catch and extending substantially parallel thereto, said arm having a projection thereon extending, at least in part, toward said detent and being free to move with respect to said detent when the latter is in one of said positions thereof but being engageable with said detent in the other position thereof to prevent movement of said arm with respect to said detent, and means on said catch engageable with said arm for preventing rotation of said catch around its axis in a direction opposite to said first direction when said projection on said arm is in engagement with said detent.

12. A strike as set forth in claim 11, wherein said projection on said arm engages said detent when the latter is in said second position.

13. An electric strike comprising a pivotally mounted catch, a detent pivotally mounted for movement of a portion thereof from a first position near said catch to a second position farther from said catch, means controlled by said catch and engageable with said portion of said detent in one of said positions for preventing rotation of said catch and movable with respect to said portion of said detent in the other position thereof to permit rotation of said catch, an electrically energizable solenoid with a movable core therein with a portion thereof extending from one end of said solenoid, said solenoid, when energized, causing said portion of the core to move in a direction toward the interior of said solenoid and said solenoid being mounted with its opposite end adjacent said detent, and interconnecting means pivotally connected at a first portion thereof to said core and pivotally connected at a second portion thereof spaced from said first portion in a direction generally parallel to the direction of movement of said core to said detent for moving said detent from said second position to said first position upon movement of said core in said direction.

14. An electric strike comprising a pivotally mounted catch, a detent pivotally mounted for movement of a portion thereof from a first position near said catch to a second position farther from said catch, means controlled by said catch and engageable with said portion of said detent in one of said positions for preventing rotation of said catch and movable with respect to said portion of said detent in the other position thereof to permit rotation of said catch, an electrically energizable solenoid with a movable core therein with a portion thereof extending from said solenoid, said solenoid being mounted with said portion of said core and said detent at the same side thereof and said solenoid, when energized, causing said portion of the core to move in a direction toward the interior of said solenoid, and a U-shaped rod pivotally connected at one end to said portion of said core and at its opposite end to said detent for moving said detent from said second position to said first position upon movement of said core in said direction.

15. An electric strike comprising a pivotally mounted catch, a detent plate pivotally mounted for movement of a portion thereof from a first position near said catch to a second position farther from said catch, the pivot axis of said plate extending transversely to the pivot axis of said catch, said catch having a projection thereon in the form of a pin which extends generally parallel to said pivot axis of said catch, said detent plate having a surface which extends radially from the pivot axis of said plate and said pin being engageable with said surface of said plate in one of said positions for preventing rotation of said catch and movable with respect to said surface of said plate in the other position thereof to permit rotation of said catch, an electrically energizable solenoid with a movable core therein with a portion thereof extending from said solenoid, said solenoid, when energized, causing said portion of the core to move in a direction toward the interior of said solenoid, and interconnecting means pivotally connected at a first portion thereof to said core and pivotally connected at a second portion thereof spaced from said first portion in a direction generally parallel to the direction of movement of said core to said detent plate for moving said detent plate from said second position to said first position upon movement of said core in said direction.

16. An electric strike comprising a pivotally mounted catch, a detent mounted for movement from a first position near said catch to a second position farther from said catch, means controlled by said catch and engageable with said detent in one of said positions for preventing rotation of said catch and movable with respect to said detent in the other position thereof to permit rotation of said catch, said means comprising a pivotally mounted arm having its pivot axis parallel to the pivot axis of said catch and having an upstanding L-shaped projection thereon engageable with said detent in said second position thereof and permitting said detent to pass between said projection and said arm in the first position of said detent, an electrically energizable solenoid with a movable core therein with a portion thereof extending from said solenoid, said solenoid, when energized, causing said portion of the core to move in a direction toward the interior of said solenoid said solenoid being mounted with said detent at one side thereof and with said portion of said core at the opposite side thereof and interconnecting means pivotally connected to said core and to said detent for moving said detent from said second position to said first position upon movement of said core in said direction.