IPC분류정보
국가/구분 |
United States(US) Patent
등록
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국제특허분류(IPC7판) |
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출원번호 |
US-0171417
(1988-03-21)
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발명자
/ 주소 |
- Shen Richard (No. 233
- Hai Tien Road
- Sec. 2 Tainan TWX)
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인용정보 |
피인용 횟수 :
49 인용 특허 :
5 |
초록
▼
A heavy-duty panic proof lock unit comprising a latch bolt mechanism, a dead bolt mechanism, and a cartridge mechanism. The latch bolt mechanism cooperates with a primary spindle. The dead bolt mechanism cooperates with a secondary cylinder. The cartridge mechanism comprises a first cartridge plate,
A heavy-duty panic proof lock unit comprising a latch bolt mechanism, a dead bolt mechanism, and a cartridge mechanism. The latch bolt mechanism cooperates with a primary spindle. The dead bolt mechanism cooperates with a secondary cylinder. The cartridge mechanism comprises a first cartridge plate, a second cartridge plate, a rocker lever, a collar, an H-shaped slide, a rotary lever, and a spring-loaded catch. The collar is a ring-shaped plate having approximately a same size with the opening of the drive ring of the rocker lever and comprises two outwardly projecting teeth at opposite locations respectively to cooperate with notches of the rocker lever. The collar also has an inwardly projecting tooth designed to fit in slide along the spindle slot and to transmit rotary force between the primary spindle and the rocker lever. The collar is entrapped in the opening of the drive ring, with the two outwardly projecting teeth thereof retained within the notches of the rocker lever. The notches are slightly larger than the outwardly projecting teeth so as to permit an extra 20 degree rotation of the collar at its both directions with respect to the rocker lever so that the latch bolt need not be cut or trimmed. The spindle of the lock unit is structurally reinforced in various locations so as to enhance the durability of the lock unit.
대표청구항
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A heavy-duty panic proof lock unit (10) having a latch bolt mechanism (11), a dead bolt mechanism (12), and a cartridge mechanism (13); said latch bolt mechanism (11) being coupled with a key actuated exterior lever type handle (14) and an interior lever type handle (15) for easier operation, and co
A heavy-duty panic proof lock unit (10) having a latch bolt mechanism (11), a dead bolt mechanism (12), and a cartridge mechanism (13); said latch bolt mechanism (11) being coupled with a key actuated exterior lever type handle (14) and an interior lever type handle (15) for easier operation, and cooperating with a primary spindle (18); said dead bolt mechanism (12) being coupled with a key actuated rosette (16) on an exterior and a thumb turn (17) on an interior, and cooperating with a secondary cylinder (24); characterized in that said cartridge mechanism (13) comprises a first cartridge plate (27), a second cartridge plate (28), a rocker lever (29), a collar (30), an H-shaped slide (31), a rotary lever (32), a spring-loaded catch (33); four screws (34), and four screw supporting shells (35); said cartridge plates, (27) and (28), being separate and distinct, and generally a rectangular flat plate, each plate being pierced by an opening (37) large enough to accommodate said primary cylindrical spindle (18) for ready rotation and another opening (38) large enough to accommodate said secondary spindle (24) for rotation; said cartridge plates (27) and (28) being arranged with respect to each other so as to leave an intervening space (37) therebetween; said cartridge plates (27) and (28) having two pair of apertures (45) and (46) to receive screws (34) and screw supporting shells (35) therethrough; apertures (45) being provided at both sides of said opening (38) horizontally, apertures (46) being provided at an upper and lower part of said opening (37) vertically; a pair of arcuate circumferential folds (47) being provided proximate to and around said opening (38), and a pair of arcuate circumferential folds (48) proximate to and around said opening (37) both for strengthening said structure thereof; a pair of partial circumferential rims (49) around said opening (37) being provided to reinforce said structure thereof; three shallow grooves (50) being provided to facilitate the up-and-down movement of said H-shaped slide (31); four short assembly screws (a), (b), (c), (d) being provided to combine said cartridge plates (27) and (28); said rocker lever (29) being slidably assembled on said primary cylindrical spindle (18); said rocker lever (29) being symmetrical about a median plane and including a drive ring (51) having an opening (52) therethrough of a size to accommodate said primary cylindrical spindle (18); said drive ring (51) having two oppositely spaced, inwardly concave notches (53) designed to cooperate with said collar (30); said rocker lever (29) having a pair of lever arms (51) partially forming an intervening arcuate window and letting said screw supporting shells (35) and said screws (34) passing therethrough; said collar (30) being a ring-shaped plate having approximately a same size with said opening (52) of said drive ring (51) and comprising two outwardly projecting teeth (56) at opposite locations for cooperating with said notches (53) respectively; said collar (30) also having an inwardly projecting tooth (57) designed to fit in and to slide along said spindle slot and to transmit rotary force between said primary cylindrical spindle (18) and said rocker lever (29); said H-shaped slide (31) cooperating with said rocker lever (29); said slide (31) being generally a flat plate including two downwardly extending legs (58) and two upwardly extending legs (59) said two downwardly extending legs (58) being initially constant in width and at a suitable position begin to be tapered in width; said two upwardly extending legs (59) being both constant in width; an inwardly projecting tab (60) being formed on each of said downwardly extending legs (58); said two inwardly projecting tabs (60) facing toward each other being provided such that said configuration of said H-shaped slide (31) cooperates better with said rocker lever (29); said rotary lever (32) being provided to cooperate with said secondary spindle (24); said rotary lever (32) being generally an arch-shaped flat plate including a central circular journal (61) having a rectangular slot (62) pierced therethrough to receive and slide on said secondary spindle (24) and to make said rotary lever (32) non-rotatable with respect thereto; said configuration of said rotary lever (32) forms arcuate cutout portions (63) and (64) which define passages for screws (34) and screw supporting shells (35); said rotary lever (32) including a tail (65) having inclined face which matches said leg (59) of said H-shaped slide (31), such that said rotary lever (32) cooperates better with said slide (31); said spring-loaded catch (33) being a resilient metal wire emplaced below said rocker lever (29); said collar (30) being entrapped in said opening (52) of said drive ring (51), with said two outwardly projecting teeth (56) thereof retained within said notches (53) of said rocker lever (29); said notches (53) being slightly larger than said outwardly projecting teeth (56) so as to permit an extra 20 degrees rotation of said collar (30) in either direction with respect to said rocker lever (29); a first screw (34a) passing through one of said apertures (45) of said second cartridge plate (28), said arcuate cutout portion (61), a first screw supporting shell (35a), said corresponding aperture (45) on said first cartridge plate (27), and engaging with a first retention slot (67) of said dead bolt mechanism (12); a second screw (34b) passing through another aperture (45) of said second cartridge plate (28), said arcuate cutout portion (62), a second screw supporting shell (35b), said corresponding aperture (45) on said first cartridge plate (27), and engaging with a second retention slot (68) of said dead bolt mechanism (12); a third screw (34c) passing through one of said apertures (46) of said second cartridge plate (28), a space between said H-shaped slide (31) and said rocker lever (29), a third screw supporting shell (35c), said corresponding aperture (46) on said first cartridge plate (27), and engaging with a third retention slot (69) of said latch bolt mechanism (11); a fourth screw (34d) passing through another aperture (46) of said second cartridge plate (28), said arcuate window of said rocker lever (29), a fourth screw supporting shell (35d), said corresponding aperture (46) on said first cartridge plate (27), and engaging with a fourth retention slot (70) of said latch bolt mechanism (11); said primary cylindrical spindle (18) comprising a hub (71), an exterior spindle (72), a locking plug assembly (73), an interior spindle (74), a housing (75), and a plunger assembly (76) fabricated in a conventional manner; characterized in that said hub (71) has an opening through which a threaded tube (77) is insertable, an exterior hub plate (78) having two stops (79) being fitted on an abutting face of said the hub (71), said stops (79) and two rivets (80) being provided to reinforce and to strengthen the structure thereof; said hub (71) being provided in an interior cavity thereof with two slide springs (81), a plunger catch (82), and a slide (83) placed on said two slide springs (81), in sequence; two horizontally placed slide spring seats (84) being provided between said slide springs (81) and said slide (83); each of said slide spring seats (84) having a downward concave recess to urge the inner side of the slide spring (81) so as to avoid any undesirable displacement thereof; said plunger catch 82 being provided with a plunger catch spring (85) on the bottom side thereof; a hook member (86) being provided on an upper face of said slide (83) such that said hook member (86) is exactly caught by a cutout (87) of said housing (75) when said hub (71) is entirely installed within said housing (75); said exterior spindle (72) which passes through the bore of said threaded tube (77) being generally a hollow tube fabricated with a set of locking plug assembly (73); said locking plug assembly (73) including a key cam (88), a lower plug swivel (89), an upper plug swivel (90), a spacer (91), a locking ring (92), and a locking plug (93); said key cam (88) having three cylindrical sections of differing diameters; a middle cylindrical section being flattened at two sides so as to be received by said lower plug swivel (89) having an opening with two flattened sides thereon; when assembling said components, a key cam spring (94) being installed within said key cam (88), said lower plug swivel (89) being inserted into said key cam (88), and a swivel spring (95) being placed on said lower plug swivel (89), such that projecting parts of the lower plug swivel (89) and upper plug swivel (90) are mounted on open end of said swivel spring (95); a key cam pin (96) being inserted into a small hole of said key cam (88) and thereby fixing said upper plug swivel (90) to prevent any undesirable drop out thereof; said locking plug assembly (73) being installed in said exterior spindle (72) with an extended part of said locking plug (93) inserted into the cavity of said key cam (88); said end part which presses said key cam spring (94) and said locking plug (93) being provided with a notch (97) to retain said key cam pin (96) therein; said projecting part of said upper plug swivel (90) being retained in a notch of said exterior spindle (72), thereby causing said swivel spring (95) to be counter-clockwise and clockwise rotatable; said spacer (91) being placed on said the exterior spindle (72) to fix said whole assembled body; said locking ring (92) being combined with said locking plug (93) such that said locking ring (92) and said locking plug (93) move simultaneously either counter-clockwise or clockwise; corresponding ends of said exterior spindle (72) and said interior spindle (74) being respectively provided with a pair of sidewardly extending wing members (98) and (99); when said primary spindle (18) is adjusted either by said exterior or interior lever handle (14) or (15), said wing members (98) and (99) press the two ends of said slide (83) respectively; said slide (83) pressing said slide spring (81) to thereby retracting said latch bolt (22); said exterior spindle (72) and said interior spindle (74) being provided with knob catches (100) and (101) at one side respectively and another side thereof provided with protruders (102) and (103) respectively; when said exterior spindle (72) passes through said exterior hub plate (78) or said interior spindle (74) passing through said housing (75) and said central opening of an interior hub plate (104), said protruders (102) pass through said notches on the central opening, thereby fixing the protruders (102) on said exterior hub plate (78), and said protruders (102) pass through said notches on said central opening, thereby fixing said protruders (103) on said exterior hub plate (78); an interior cavity of said interior spindle (74) being provided with a plunger assembly (76); said plunger assembly (76) including a balance cap (105) on a plunger cylinder (106); said plunger cylinder (106) includes an extension on each side for the purpose of balancing effect; a plunger bar (107), a button (108), a cotter pin (109), together with a plunger swivel (110) being assembled and installed within said interior spindle (74); when said button (108) of said plunger assembly (76) is being pressed, said plunger bar (107) presses said locking plug (93) and said locking ring (92); said protruder of said locking ring (92) being entrapped by the notch of said exterior spindle (72) and the notch of said exterior hub plate (78); said two notches (111) on said plunger bar (107) being entrapped by said two pointed edges of said plunger catch (82), to prevent said plunger bar (107) from bounding out, and thereby causing said key cam spring (94) under pressure and said exterior lever handle (14) not rotatable.
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