A latch has a pair of oppositely acting latch bolts slidable on a housing that are engageable with latching formations on a strike. The housing has a pair of substantially parallel posts configured to shield portions of the latch bolts during insertion into and withdrawal from openings defined by th
A latch has a pair of oppositely acting latch bolts slidable on a housing that are engageable with latching formations on a strike. The housing has a pair of substantially parallel posts configured to shield portions of the latch bolts during insertion into and withdrawal from openings defined by the strike. A plug is turnable on the housing to slide the latch bolts toward and away from each other between latched and unlatched positions. In lockable embodiments of the latch, the plug may be provided with a keyway into which a key can be inserted and turned to move the latch bolts; and, in some embodiments, the latch bolts are retained in their latched positions when the key is removed.
대표청구항▼
What is claimed is: 1. A latch having a housing from which project two substantially parallel extending posts configured to be insertable concurrently into openings defined by a strike at locations on opposite sides of a latching formation also defined by the strike, first and second latch bolts sl
What is claimed is: 1. A latch having a housing from which project two substantially parallel extending posts configured to be insertable concurrently into openings defined by a strike at locations on opposite sides of a latching formation also defined by the strike, first and second latch bolts slidable on the housing each extending along a separate one of the posts to define at least one tooth formation that is engageable with the latching formation when the posts are inserted into the openings, and a plug rotatable on the housing and drivingly connected by first and second links to the first and second latch bolts, respectively, with the plug and the links cooperable to slide the latch bolts toward each other when the plug is turned in one direction, and away from each other when the plug is turned in an opposite direction, wherein the first and second links are pivotally connected to the plug and to the first and second latch bolts. 2. The latch of claim 1 wherein the first and second links are elongate, and pins pivotally connect end regions of the first and second links to the plug and to the first and second latch bolts. 3. The latch of claim 1 wherein the plug and the links cooperate to slide the latch bolts away from each other to positions adjacent the posts where the posts prevent the tooth formations from engaging the latching formation in response to turning the plug in the opposite direction, and to positions wherein the tooth formations can latchingly engage spaced surfaces of the latching formation in response to turning the plug in the one direction. 4. A latch having a housing from which project two substantially parallel extending posts configured to be insertable concurrently into openings defined by a strike at locations on opposite sides of a latching formation also defined by the strike, first and second latch bolts slidable on the housing each extending along a separate one of the posts to define at least one tooth formation that is engageable with the latching formation when the posts are inserted into the openings, and a plug rotatable on the housing and drivingly connected by first and second links to the first and second latch bolts, respectively, with the plug and the links cooperable to slide the latch bolts toward each other when the plug is turned in one direction, and away from each other when the plug is turned in an opposite direction, wherein the housing encloses only one spring, and the only one spring engages the first and second latch bolts only for the purpose of minimizing rattling in the presence of vibration and only when the latch bolts are moved toward each other as the result of turning the plug in the one direction. 5. A latch comprising: a) a strike that defines first and second latching formations adjacent first and second spaced openings, respectively; b) a housing that defines first and second substantially parallel extending posts insertable concurrently into the first and second openings, respectively; c) first and second latch bolts slidably supported by the housing for non-pivotal movement toward and away from each other, with the first latch bolt having a formation that extends along the first post to define at least one first tooth formation that faces toward the second post, with the second latch bolt having a formation that extends along the second post to define at least one second tooth formation that faces toward the first post; d) a plug turnable relative to the housing between unlatched and latched positions, and drivingly connected to the first and second latch bolts by links that pivotally connect to the plug 1) to move the latch bolts away from each other to positions where the tooth formations cannot engage the latching formations in response to turning the plug in one direction, and 2) to move the latch bolts toward each other to positions wherein the first and second tooth formations can latchingly engage the first and second latching formations, respectively, in response to turning the plug in an opposite direction; e) wherein the plug is turnable between the unlatched and latched positions only when a suitably configured key is inserted into a keyway defined by the plug; and, f) wherein the key is removable from the plug only when the plug is turned to the latched position, and wherein the links are pivotally connected to the first and second latch bolts at first and second locations. 6. The latch of claim 5 wherein the links are of elongate form, are enclosed by the housing, and are configured to extend along an imaginary line that passes centrally through the plug when the plug is turned to the unlatched position to prevent movement of the first and second latch bolts until the plug is turned out of the unlatched position. 7. The latch of claim 5 including a compression coil spring carried by the housing at a position between the first and second latch bolts where opposed portions of the spring are engaged by the first and second latch bolts when the latch bolts are moved to the positions wherein the first and second tooth formations can latchingly engage the first and second latching formations, respectively. 8. The latch of claim 5 wherein the first and second latch bolts are defined by first and second metal stampings, respectively, having configurations that are mirror image reversals of each other, and wherein the first and second links are also defined by metal stampings which drivingly connect the plug with the first and second latch bolts, respectively. 9. The latch of claim 8 wherein the first and second links are substantially identical elongate members having holes formed through their opposite end regions, and wherein pin-like formations extend through the holes to pivotally connect the first and second links to the plug and to the first and second latch bolts. 10. A latch comprising: a) a strike that defines first and second latching formations adjacent first and second spaced openings, respectively; b) a housing that defines first and second substantially parallel extending posts insertable concurrently into the first and second openings, respectively; c) first and second latch bolts slidably supported by the housing for non-pivotal movement toward and away from each other, with the first latch bolt having a formation that extends along the first post to define at least one first tooth formation that faces toward the second post, with the second latch bolt having a formation that extends along the second post to define at least one second tooth formation that faces toward the first post; d) a plug turnable relative to the housing between unlatched and latched positions, and drivingly connected to the first and second latch bolts by links that pivotally connect to the plug 1) to move the latch bolts away from each other to positions where the tooth formations cannot engage the latching formations in response to turning the plug in one direction, and 2) to move the latch bolts toward each other to positions wherein the first and second tooth formations can latchingly engage the first and second latching formations, respectively, in response to turning the plug in an opposite direction; and, e) wherein the first latch bolt carries at least two first tooth formations, the second latch bolt carries at least two second tooth formations, the first latching formation is configured to latchingly engage one at a time each of the first tooth formations, and the second latching formation is configured to latchingly engage one at a time each of the second tooth formations. 11. A latch, comprising: a) a strike attachable to one of two members that are to be latched together, and defining first and second latching formations of similar configuration located, respectively, near adjacent portions of first and second similarly configured spaced-apart openings defined by the strike; b) a housing attachable to the other of the two members and defining first and second similarly configured, substantially parallel extending posts that are spaced and configured to permit their being concurrently inserted into the first and second openings, respectively; c) first and second latch bolts slidably connected to the housing have first and second elongate regions that extend alongside the first and second posts, respectively, and that carry first and second tooth formations, respectively, configured to latchingly engage the first and second latching formations, respectively, when moved toward each other after being inserted concurrently with the first and second posts into the first and second openings, respectively; d) a plug connected to the housing and turnable between latched and unlatched positions; e) first and second elongate links each having an end region pivotally connected to the plug, with the first link having an opposite end region pivotally connected to the first latch bolt, with the second link having an opposite end region pivotally connected to the second latch bolt, and with the links being configured to move the first and second latch bolts away from each other when the plug is turned to the unlatched position, and to move the first and second latch bolts toward each other when the plug is turned to the latched position; f) whereby, turning the plug to the unlatched position causes the first and second latch bolts to move substantially concurrently away from each other to positions that permit the elongate regions of the latch bolts and the posts of the housing to be moved substantially concurrently into and out of the openings, and turning the plug to the latched position at a time when the first and second elongate regions of the latch bolts and the first and second posts of the housing are inserted into the first and second openings of the strike, respectively, causes the first and second tooth formations to move substantially concurrently into latched engagement with the first and second latching formations, respectively, of the strike. 12. The latch of claim 11 wherein the plug is turnable between the unlatched and latched positions only when a suitably configured key is inserted into a keyway defined by the plug. 13. The latch of claim 12 wherein the key is removable from the plug only when the plug is turned to the latched position. 14. The latch of claim 11 including a compression coil spring carried by the housing at a position between the first and second latch bolts where opposed portions of the spring are engaged by the first and second latch bolts when the latch bolts latchingly engage the latching formations to minimize rattling that might result should the latch be subjected to vibration. 15. The latch of claim 11 wherein the first and second posts shield the first and second tooth formations from being contacted by the first and second latching formations during movement of the first and second posts into and out of the first and second openings, respectively. 16. A latch having a housing from which project two substantially parallel extending posts configured to extend concurrently into openings defined by a strike at locations on opposite sides of a latching formation also defined by the strike, a pair of latch bolts slidable on the housing with each of the latch bolts including an elongate formation that extends along a separate one of the posts to define a tooth formation that is engageable with the latching formation, and a plug rotatable on the housing and connected by separate housing-enclosed links to each of the latch bolts and operable to slide the latch bolts toward each other when the lug is turned in one direction, and away from each other when the plug is turned in an opposite direction, wherein the links are of elongate form and extend substantially parallel to each other within the housing, and each of the links is pivotally connected to a separate one of the latch bolts and to the plug. 17. The latch of claim 16 wherein the latch bolts have configurations that are mirror image reversals of each other, with each of the configurations including a substantially C-shaped formation enclosed by the housing, with one end region of each C-shaped formation pivotally connected to a separate one of the links.
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이 특허에 인용된 특허 (17)
Theriault Kenneth T. ; Eden ; Jr. Charles W., Cylinder lock system.
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