Gate lifter latch
10443278 ยท 2019-10-15
Inventors
Cpc classification
E05B15/0006
FIXED CONSTRUCTIONS
E05B63/04
FIXED CONSTRUCTIONS
Y10T292/68
GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
E05C1/06
FIXED CONSTRUCTIONS
Y10T292/1043
GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
E05B63/0056
FIXED CONSTRUCTIONS
E05B67/383
FIXED CONSTRUCTIONS
Y10S292/29
GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
E05C19/009
FIXED CONSTRUCTIONS
E05C1/04
FIXED CONSTRUCTIONS
Y10T292/1063
GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
E05C3/14
FIXED CONSTRUCTIONS
E05B9/08
FIXED CONSTRUCTIONS
Y10T292/108
GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
International classification
Abstract
A gate lifter latch having a striker assembly having a striker pin, the striker assembly mounted to the free end of a gate, and a catch lifting assembly mounted to a latch post, the catch lifting assembly having a pivoting lift arm that receives a striker pin, such that during closure of the gate the pivoting lift arm pivots upward and raises the striker pin and free end of the gate. The gate lifter latch may further have a manual or automatic gate latch assembly for securement of the gate in the closed position. The components of the gate lifter latch are preferably structured such that the gate lifter latch may be disassembled and reassembled for use with either a left or right inswing or outswing gate.
Claims
1. A gate lifter latch comprising: a catch lifting assembly and a striker assembly; said striker assembly comprising a striker pin; said catch lifting assembly comprising a lifter base plate, a pivoting lift arm member pivotally mounted to said lifter base plate, a lift arm inclination adjusting assembly determining the lowermost position of said lift arm member, and a stop member limiting movement of said lift arm member; whereby with said striker assembly mounted to a gate and said catch lifting assembly mounted to a latch post, said striker pin is received by said lift arm member during closure of the gate; and further whereby upon sagging of the gate, said lift arm member raises the gate during closure of the gate.
2. The gate lifter latch of claim 1, wherein said lift arm member comprises an open slot sized to receive said striker pin therein.
3. The gate lifter latch of claim 1, wherein said lift arm inclination assembly determines the pivot range of said lift arm member.
4. The gate lifter latch of claim 1, wherein said lift arm member pivots between a vertical position and a horizontal position.
5. The gate lifter latch of claim 1, wherein said lift arm and said lifter base plate are structured such that said lift arm may be mounted to either side of said lifter base plate.
6. The gate lifter latch of claim 1, further comprising a manual gate latch assembly comprising a latch bolt and bolt catch member.
7. The gate lifter latch of claim 1, further comprising an automatic gate latch assembly comprising a latch bolt and bolt catch member.
8. The gate lifter latch of claim 1, wherein said gate lifter latch is structured such that said gate lifter latch may be disassembled and reassembled for use on a right inswing gate, a left inswing gate, a right outswing gate or a left outswing gate.
9. A gate lifter latch comprising: a catch lifting assembly and a striker assembly; said striker assembly comprising a striker pin mounted to a striker base plate, said striker base plate adapted to be mounted to a gate on its free end; said catch lifting assembly comprising a pivoting lift arm member comprising an open slot, said lift arm member pivotally mounted to a lifter base plate, a lift arm inclination adjusting assembly determining the lowermost position of said lift arm member, and a stop member limiting movement of said lift arm member, said catch lifting assembly adapted to be mounted to a latch post; whereby with said striker assembly mounted to the gate and said catch lifting assembly mounted to the latch post, upon closure of the gate said striker pin is received within said open slot of said lift arm member and said lift arm member pivots into a substantially vertical position; and further whereby upon sagging of the gate, said lift arm member raises the gate during closure of the gate.
10. The gate lifter latch of claim 9, said lift arm inclination assembly determines the pivot range of said lift arm member.
11. The gate lifter latch of claim 9, wherein said lift arm and said lifter base member are structured such that said lift arm may be mounted to either side of said lifter base member.
12. The gate lifter latch of claim 9, further comprising a manual gate latch assembly comprising a latch bolt and bolt catch member.
13. The gate lifter latch of claim 9, further comprising an automatic gate latch assembly comprising a latch bolt and bolt catch member.
14. The gate lifter latch of claim 9, wherein said gate lifter latch is structured such that said gate lifter latch may be disassembled and reassembled for use on a right inswing gate, a left inswing gate, a right outswing gate or a left outswing gate.
15. A gate lifter latch comprising: a catch lifting assembly and a striker assembly; said striker assembly comprising a striker pin mounted to a striker base plate, said striker base plate adapted to be mounted to the free end of a gate; said catch lifting assembly comprising a pivoting lift arm member comprising an open slot, said lift arm member pivotally mounted to a lifter base plate, and a stop member limiting movement of said lift arm member, said catch lifting assembly adapted to be mounted to a latch post; said catch lifting assembly further comprising a lift arm inclination adjusting assembly, said lift arm inclination adjusting assembly determining the lowermost position of said lift aim member; whereby with said striker assembly mounted to the gate and said catch lifting assembly mounted to the latch post, upon closure of the gate said striker pin is received within said open slot of said lift arm member and said lift arm member pivots into a substantially vertical position; and further whereby upon sagging of the gate, said lift arm member raises the gate during closure of the gate.
16. The gate lifter latch of claim 15, further comprising a manual gate latch assembly comprising a latch bolt and bolt catch member.
17. The gate lifter latch of claim 15, further comprising an automatic gate latch assembly comprising a latch bolt and bolt catch member.
Description
BRIEF DESCRIPTION OF THE DRAWINGS
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DETAILED DESCRIPTION OF THE INVENTION
(33) With reference to the drawings, which are intended to be descriptive and illustrative but not limiting as to the scope and embodiments of the invention, the invention is described as follows in detail. While the description makes use of the terms gate, fence, latch post and hinge post, it is to be understood that the term gate is to collectively reference a pivotally mounted gate, door or any similar closure panel member, the term fence is to collectively reference any vertically oriented fence, wall, or similar member having an opening in which the gate is mounted, and the terms latch post and hinge post are to collectively register any vertical supports, jambs, posts or the similar members to which the latch and the hinges are respectively affixed.
(34) In general, the invention in various embodiments is a releasable gate lifter latch configured to retain a gate 10 in the closed position and to allow opening of the gate 10 when desired. The gate lifter latch accounts for and corrects gate sag when the gate 10 is closed, whereby the free end 11 of the gate 10 is lifted into the proper non-sagging position relative to the latch post 12.
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(36) Embodiments of the gate lifter latch is shown in
(37) The gate lifter latch further comprises a catch lifting assembly 110 which is mounted to the stationary latch post 12, the catch lifting assembly 110 comprising a lifter base plate 111 having mounting apertures 131 which receive mechanical fasteners 20, a pivoting lift arm or receiving member 113, a stop member 112 and a lift aim inclination adjusting assembly 114. The lift arm 113 is pivotally connected to lifter base plate 111 in a manner that allows it to freely pivot between a vertical orientation and an inclined orientation. The lift arm 113 comprises a pivot end base segment 128 and a free end receiving segment 129 preferably connected by a transition segment 123 such that the pivot end base segment 128 and the free end receiving segment 129 occupy different yet substantially parallel planes.
(38) The free end receiving segment 129 comprises an open slot 121 defining a pair of prongs or tines 122, such that the lift arm 113 is a forked member, the transverse dimension of the slot 121 being larger than the diameter of the striker pin 213, such that the striker pin 213 may be received within the slot 121.
(39) As shown best in
(40) To accommodate increased sag over time, as well as to set the initial receiving position for installation to correct a sagging gate 10, the inclination adjusting assembly 114 is provided to enable adjustment of lift arm 113 so as to define and limit the pivot range of the lift arm 113 between a substantially vertical position and a substantially horizontal position. The inclination adjusting assembly 114 determines the lowermost position of the lift arm 113 such that the lift arm slot 121 is properly positioned to receive the striker pin 213 of the striker assembly 210 when a sagging gate 10 is closed. With the gate 10 in the closed position, the lift arm 113 is vertically oriented in a vertical position, similar to a 12 o'clock position. The lower limit of the radial movement of the lift arm 113 will be set as required to match the location of the striker pin 213 on the sagging gate 10 anywhere from a few degrees out of vertical for a gate 10 with only a small amount of sag to almost 90 degrees or the 9 o'clock position for gates 10 with greater amounts of sag.
(41) In the embodiment shown, the lift arm inclination adjusting assembly 114 further comprises an internally threaded collar 124 that is affixed to the pivot end base segment 128 of the lift arm 113, such as by welding or other suitable method. The threaded collar 124 is positioned below the pivot axis of the lift arm 113 and may receive a lift arm adjustment screw 127 through either side, thus permitting reversability of the lift arm 113 on the catch lifting assembly 110, the central axis of the bore in the threaded collar 124 and the lift arm adjustment bolt 127 being oriented within the pivot plane of the lift arm 113. A lock nut 126 is disposed on the lift arm adjustment screw 127 to preclude unwanted movement of the lift arm adjustment screw 127 relative to the threaded collar 124. A notched or keyed washer 139 is positioned on the threaded post 137 between the lift aim 113 and the stop member 112, the key accommodating the body of the threaded collar 124. In this manner, the end of the lift arm adjustment bolt 127 abuts the angled adjustor stop surface 135 on the stop body 134 to limit downward pivoting of the lift arm 113, as shown in
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(43) Opening the gate 10 results in a reverse sequence of events. As the gate 10 is opened, the lift arm 113 pivots out of vertical orientation into the lowermost pre-set position, the striker pin 213 exits the lift arm slot 121 and gate 10 returns to the fully sagged position. As the lift arm 113 pivots downward, the end of the lift arm adjustment bolt 127 comes into contact with the angled adjustor stop surface 135 such that further downward movement is precluded and the lift arm 113 is maintained at the proper position to receive the striker pin 213 when the gate is closed.
(44) In a preferred embodiment the components of the gate lifter latch are designed and constructed such that manipulation or re-positioning of the gate lifter latch components by disassembling and reassembling is easily achieved to make the gate lifter latch universal, such that the gate lifter latch may be used in conjunction with right or left inswing gates 10 or right or left outswing gates 10, as illustrated in
(45) In addition to the lift aim 113, the orientation of the stop member 112 and the position of the stop mounting pin 141 is altered depending on whether the gate 10 is outswing or inswing, and whether the gate 10 opens left or opens right, as shown in
(46) In a further embodiment, the gate lifter latch is readily adaptable for use in conjunction with a manual or automatic gate latch assembly. As used herein, the term gate latch assembly shall be taken to signify a structure that secures the gate 10 in the closed position such that a physical action by the user is required in order to release the gate 10 so that it may be opened. The physical action may include for example movement of a handle, sliding a bolt and/or removing a security lock.
(47) In one embodiment, as shown in
(48) A bolt catch member 304 having a base plate 305, a bolt flange 306 extending generally perpendicularly from the base plate 305 and a bolt receiving aperture 307, is affixed to the latch post 12 with mechanical fasteners 20 at the proper location for the bolt receiving aperture 307 to receive the latch bolt 301 when the striker pin 213 on the gate free end 11 is fully lifted into the proper closed height by the lift arm 113 and the latch bolt 301 is advanced through the striker pin 213. For an outswing gate 10, as shown in
(49) With the lock 399 removed, the gate 10 is opened by sliding the latch bolt 301 out of the bolt catch member 304 or by rotating the handle 302 of the latch bolt 301 clear of the paddle bolt 310 and pulling the latch bolt 301 through the hollow striker pin 213 to retract it from the bolt catch member 304. The operation is reversed to lock the gate 10.
(50) In a preferred embodiment the manual gate latch assembly 300 further comprises latch bolt handle screw 308 mounted into an apertured latch bolt handle flange 312, the latch bolt handle screw 308 extending perpendicular relative to the axis of the latch bolt 301. The latch bolt handle screw 308 may be inserted through either side of the latch bolt handle flange 312 (
(51) For additional security, one of the mounting apertures for the latch bolt assembly base plate 305 is provided with a non-circular screw receptacle 311, such as raised square walls, and one mounting screw 309 has a non-circular head that conforms with the non-circular screw receptacle 309 (
(52) In still another embodiment, as shown in
(53) The latch bolt 402 passes through the hollow striker pin 213 and into a bolt catch member 405 having a base plate 406, a bolt flange 407 extending from the base plate 406, and a bolt receiving aperture 408. Because the latch bolt 402 is biased in the extended position by the spring member 404 when the gate 10 is being closed, for an inswing gate 10 as seen in
(54) An automatic lock base member 411 is coextensively mounted to the striker base plate 211 of the striker assembly, both the automatic lock base member 411 and the striker base plate 211 having aligned mounting apertures and a relatively large central opening which retains a bushing 415 through which the drive shaft 412 extends. The handle 401 and the hub member 413 are apertured (
(55) The central axis of the drive shaft 412 and hub member 413 of the automatic gate latch assembly 400 preferably intersect the longitudinal axis of the latch bolt 402 such that the assembly 400 is reversible to accommodate both left opening and right opening gates 10, as shown in
(56) The automatic gate latch assembly 400 also preferably comprises a sliding lock pin 416 that extends through the aperture of a pin flange 423 extending outwardly from the automatic lock base 411. The lock pin 416 is secured with a lock pin head 417 (
(57) It is understood that equivalents and substitutions for come elements set forth above may be obvious to those of ordinary skill in the art, and therefore the true scope and definition of the invention is to be as set forth in the following claims.