CLOSURE LATCH

• US 3,596,484 A
• Filed: 07/31/1969
• Issued: 08/03/1971
• Est. Priority Date: 07/31/1969
• Status: Expired due to Term

• Current Assignee: Theodore F. Peters
• Original Assignee: Theodore F. Peters
• Inventors: Peters, Theodore F.
• Application Number:
  US04/846,539
• Time in Patent Office: 733 Days
• US Class Current: 70/150
• CPC Class Codes: E05B 47/00 Operating or controlling locks or other fastening devices by electric or magnetic means electric permutation locks E05B49/00
• CPC Class Codes: E05B 81/10 Hydraulic or pneumatic hydraulic or pneumatic circuits E05B81/52
• CPC Class Codes: E05B 81/20 for assisting final closing or for initiating opening
• CPC Class Codes: E05B 83/16 Locks for luggage compartments, car boot lids or car bonnets
• CPC Class Codes: Y10S 292/43 Rear deck lid latches
• CPC Class Codes: Y10T 292/1039 Swinging and camming
• CPC Class Codes: Y10T 292/1078 Closure
• CPC Class Codes: Y10T 292/1082 Motor
• CPC Class Codes: Y10T 292/444 Swinging catch
• CPC Class Codes: Y10T 292/564 Swinging bolt, swinging detent
• CPC Class Codes: Y10T 70/55 Dogged bolt or connections
• CPC Class Codes: Y10T 70/5903 Hood
• CPC Class Codes: Y10T 70/7051 Using a powered device [e.g., motor]

Abstract

A closure latch for a vehicle deck lid or the like includes a striker secured to the deck lid in cooperative relation to a latch pivotally connected to the vehicle body for movement from a first or unlatched position out from engagement with the striker to a second or latched position engaging the striker to pull it, thereby pulling the deck lid firmly against the vehicle body with a weather seal compressed between the deck lid and the vehicle body. A latch hook is pivotally connected adjacent to the latch and is normally biased to engage the latch and retain it in the first position but is adapted to be contacted by the striker for disengagement from the latch to permit movement of the latch by a differential fluid pressure operated piston or by rotation of the latch hook as effected by contact with the striker.

Claims

1. A closure latch for latching a closure member to a support member, the closure member being swingably mounted for movement between open and closed positions relative to the support member, the closure latch including striker means secured to one of said members, latch mean swingably mounted on said other member for movement from an unlatched position to a latched position relative to said striker means, said latch means including a pull down flange operable to engage and move said striker means relative to said other member when said latch means is rotated from said unlatched position to said latched position, latch hook means movably positioned to normally engage and hold said latch means in said unlatched position and to be engaged by said striker means for movement to release said latch means, actuating means operatively connected to said latch mans for rotating said latch means between said unlatched position and said latched position, said actuating means including a differential fluid pressure operated motor connected to said latch means, valve mean connecting said differential fluid pressure operated motor to a source of fluid at a first pressure and to a source of fluid at a second pressure, and valve actuator means operatively connected to said valve means to selectively control said valve means.

2. A closure latch according to claim 1 wherein said valve means includes first valve means connecting said differential fluid pressure operated motor to said source of fluid at a first pressure, and second valve means connecting said differential fluid pressure operated motor to said source of fluid at a second pressure, and wherein said valve actuator means is operatively connected to said second valve means for selectively operating said second valve means.

3. A closure latch for latching a closure member to a support member, the closure member being swingably mounted for movement between open and closed positions relative to the support member, the closure latch including striker means secured to one of said member, latch means mounted on said other member for pivotal movement about an axis from an unlatched position to be a latched position, said latch means including flange means having a leasing edge portion and a trailing edge portion, relative to movement from said unlatched position to said latched position, with said leading edge portion spaced a greater distance from said axis than said trailing edge portion, a stop means adjacent said trailing edge portion positioned to be in interference relation to said striker means, and a latching pin, said flange means being operable to engage and move said striker means relative to said other member when said latch means is rotated from said unlatched position to said latched position, latch hook means swingably positioned adjacent said latch means to normally engage said stop means to hold said latch means in said unlatched position and to be engaged by said striker means for movement to release said latch means and to engage said latching pin to pivot said latch means from said unlatched position toward saiD latched position, power means operatively connected to said latch means for rotating said latch means from said unlatched position to said latched position, and back to said unlatched position and, control means connnected to said power means to operate said power means to selectively move said latch means between said unlatched position and said latched position and to permit movement of said latch means by said latch hook means.

4. A closure latch according to claim 3 wherein said power means includes a differential fluid pressure operated motor connectable to a source of fluid at a first pressure and to a source of fluid at a second pressure, said differential fluid pressure operated motor being connected to said latch means to move said latch means to said latched position, and bias means connected to said latch means to normally bias said latch mean to said unlatched position.

5. A closure latch according to claim 4 wherein said control means includes a one-way valve means connecting said differential fluid pressure operated motor to said source of fluid at a first pressure, valve means connecting said differential fluid pressure operated motor to said source of fluid at a second pressure, and key cylinder lock means operatively connected to said valve means to selectively actuate said valve means.

6. A closure latch according to claim 4 wherein said control means includes a one-way valve means connecting said differential fluid pressure operated motor to said source of fluid at a first pressure, valve means connecting said differential fluid pressure operated motor to said source to fluid at a second pressure, and electrically operated means operatively connected to said valve means to selectively actuate said valve means.