초록

A latch assembly wherein a latch bolt and a latch trigger are unlatched by rotation of a sleeve adjacent the latch trigger which causes the latch trigger to pivot out of engagement with the latch bolt.

대표청구항 ▼

1. A latch assembly comprising: a latch bolt means adapted for pivotal movement about a fixed latch bolt pivot; a latch trigger means adapted for pivotal movement and between at least first and second preselected latch trigger means positions, about a fixed latch trigger pivot, said latch trigge

1. A latch assembly comprising: a latch bolt means adapted for pivotal movement about a fixed latch bolt pivot; a latch trigger means adapted for pivotal movement and between at least first and second preselected latch trigger means positions, about a fixed latch trigger pivot, said latch trigger means including a latch trigger means interlocking means and said latch bolt means including a latch bolt means interlocking means for engaging said latch trigger means protrusion, said latch trigger means interlocking means adapted for engaging said latch bolt means interlocking means when said latch trigger means is at said first latch trigger means predetermined position and for disengaging said latch bolt means recess at said second latch trigger means predetermined position; a shaft means adjacent said latch trigger means adapted for rotating a shaft into engagement with said latch trigger means and for pivoting said latch trigger means to said second predetermined latch trigger position said shaft means further including a frame within which said shaft is mounted; and a spring urging a shoulder of said latch trigger means away from a shoulder of said shaft means such that the pivoting of said latch trigger means from said first preselected latch trigger means position to said second preselected latch trigger means position compresses said spring. 2. The latch assembly claimed in claim 1 wherein the latch trigger means is engaged by said shaft means at a latch trigger means leg, said latch trigger means leg and said latch trigger means interlocking means being at opposed ends of said latch trigger means. 3. The latch assembly claimed in claim 1 wherein said shaft is provided with a aperature for engagement by an operating tool for rotating said sleeve. 4. The latch assembly claimed in claim 1 wherein said latch bolt means pivotal movement is further defined as between first and second preselected latch bolt means positions and said latch bolt means further includes a latch bolt means shoulder for engaging a latch trigger means face and urging said latch trigger means to rotate to said latch trigger means first position as said latch bolt means is rotated to said latch bolt means first position. 5. The latch assembly claimed in claim 4 wherein said latch assembly is latched and said latch bolt means interlocking means and said latch trigger means protrusion are engaged when said latch bolt means is in said first predetermined latch bolt means position and said latch trigger means is in said first predetermined latch trigger means position, and said latch assembly is unlatched and said latch bolt means interlocking means and said latch trigger means protrusion are disengaged when said latch bolt means is in said second predetermined latch bolt means position and said latch trigger means is in said second predetermined latch trigger means position. 6. A latch assembly comprising: a latch bolt means adapted for pivotal movement about a fixed latch bolt pivot; latch trigger means adapted for pivotal movement and between at least first and second preselected latch trigger means positions, about a fixed latch trigger pivot said latch trigger means including a latch trigger means protrusion and said latch bolt means including a latch bolt means recess for engaging said latch trigger means protrusion, said latch trigger means protrusion adapted for engaging said latch bolt means recess when said latch trigger means is at said first latch trigger means predetermined position and for disengaging said latch bolt means recess at said second latch trigger means predetermined position; latch trigger means biasing means for urging said latch trigger means to assume said first preselected latch trigger means position said latch trigger means biasing means being further defined as a spring urging a latch trigger means shoulder away from a sleeve shoulder such that the pivoting of said latch trigger means from said first preselected latch trigger means position to said second preselected latch trigger means position compresses said spring; a shaft means adjacent said latch trigger means adapted for rotating a shaft into engagement with said latch trigger means and for pivoting said latch trigger means to said second predetermined latch trigger position said shaft means further including a frame within which said shaft is mounted; and latch bolt means biasing means for urging said latch bolt means recess to engage said latch trigger means when said latch trigger means is at said first predetermined latch trigger means position. 7. The latch assembly claimed in claim 6 wherein the latch trigger means is engaged by said shaft means at a latch trigger means leg, said latch trigger means leg and said latch trigger means protrusion being at opposed ends of said latch trigger means. 8. The latch assembly claimed in claim 6 wherein said latch trigger means biasing means being further defined as a spring urging a latch trigger means shoulder away from a sleeve shoulder such that the pivoting of said latch trigger means from said first preselected latch trigger means position to said second preselected latch trigger means position compresses said spring. 9. The latch assembly claimed in claim 8 wherein said spring is coiled about said latch trigger means pivot. 10. The latch assembly claimed in claim 6 wherein said latch bolt means pivotal movement is further defined as between first and second preselected latch bolt means positions and said latch bolt means further includes a latch bolt means shoulder for engaging a latch trigger means face and urging said latch trigger means to rotate to said latch trigger means first position as said latch bolt means is rotated to said latch bolt means first position. 11. The latch assembly claimed in claim 10 wherein said latch assembly is latched and said latch bolt means interlocking means and said latch trigger means interlocking means are engaged when said latch bolt means in said first predetermined latch bolt means position and said latch trigger means is in said first predetermined latch trigger means position, and said latch assembly is unlatched and said latch bolt means interlocking means and said latch trigger means interlocking means are disengaged when said latch bolt means is in said second predetermined latch bolt means position and said latch trigger means is in said second predetermined latch trigger means position.