[특허]Door handle latch and lock mechanism

Takigen Seizou Co. Ltd. (Tokyo JPX 03)

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특허 상세정보

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Door handle latch and lock mechanism

특허상세정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	E05C-001/12
미국특허분류(USC)	70/215 ; 232/DIG ; 71 ; 232/173
출원번호	US-0861636 (1986-05-07)
우선권정보	JP-0171746 (1983-11-05)
발명자 / 주소	Takasaki Kunihiko (Chiba JPX)
출원인 / 주소	Takigen Seizou Co. Ltd. (Tokyo JPX 03)
인용정보	피인용 횟수 : 24 인용 특허 : 2

초록
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A door handle device and latch mechanism including a device body installed on a door panel. The device body is provided with a handle grip connected thereto by a first pivot pin and has an actuating lever connected to the device body through the first pivot pin, which is mounted unitarily with the handle grip through a second pivot pin. A reset lever is pivotally secured to the handle grip through the second pivot pin acting on the handle grip. A retractable latch mounted in the device body has a lock lever connected thereto by a third pivot pin to check the rearward slide of the latch by engagement with a receiving portion in a bottom plate of the handle device. A reset spring in the handle grip holds the reset lever and a rotatable lock cam in engagement, and also holds the reset leer and the lock lever in engagement. A leaf spring retained in the device body bottom plate releases engagement of the lock lever and bottom plate receiving portion. A lock mounted on the handle grip has a cam lock in engagement with the reset lever secured to a rotor, so that when the rotor is turned the reset lever as depressed by the lock cam turns to release the restraint on the lock lever. The lock lever urged upwardly by the leaf spring turns to release its engagement with the receiving portion of the bottom plate, and permits the latch to be retracted.

대표
청구항
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A handle latch and lock mechanism for a door, comprising: a body 1 which is installed on a door panel A; a handle grip 2 which is connected to said body 1 by a first pivot pin 8; a latch 5 which is retractably mounted on said body 1; an acuating level 7 which is connected in said body 1 by said first pivot pin 8 and which is mounted unitarily with said handle grip 2 by a second pivot pin 13, a front end part 7a of the actuating lever 7 abutting on a third pivot pin 9 fixed on a rear end 5a of the latch 5 so as to retract said latch 5 owing to rotating of the handle grip 2 about said first pivot pin 8; a compression spring 6 which is interposed between said body 1 and said latch 5 so as to urge the latch 5 to slide in an advancing direction; a bottom plate 18 which is fixed to said body 1; a lock 3 which is mounted on said handle grip 2 and which has a lock cam 15 secured to a rotor 4, said latch 5 becoming retractable after turning the lock cam 15; a reset lever 12 which is pivotally connected to said handle grip 2 by said second pivot pin 13 and which has a protrusive piece 12c formed at a rear end thereof, said protrusive piece 12c abutting on an eccentric projection 15a of said lock cam 15; a lock lever 10 which is connected to said rear end 5a of the latch 5 by said third pivot pin 9 and a rear end part 10c which is engageable with a receiving portion 20 protrusively provided on said bottom plate 18 so as to check the retracting of said latch 5; a reset spring 14 which is interposed between an inner wall 12a of the reset lever 12 and a rear vertical wall 7b of said actuating lever 7 and which pushes said protrusive piece 12c of the reset lever 12 against said lock cam 15 to hold an engagement therebetween and also pushes a front end part 12b of said reset lever 12 on a fore surface part 10b of said lock lever 10 to hold an engagement between said rear end part 10c of the lock lever 10 and said receiving portion 20 of the bottom plate 18; a leaf spring 11 which is secured at its front end 11a to said bottom plate 18 and which pushes up said lock lever 10 at its rear end 11b so as to release said engagement between said rear end part 10c of the lock lever 10 and said receiving portion 20 when said protrusive piece 12c of the reset lever 12 is pushed by an eccentric projection 15a of said lock cam 15 owing to a rotation of the lock cam 15 and thereby said reset lever 12 is rotated; whereby said rear end part 10c of the lock lever 10 disengages from said receiving portion 20 of the bottom plate 18, and the reset lever 12 pushed by said lock lever 10 is rotated about said second pivot pin 13 and then the handle grip 2 is rotated about said first pivot pin 8, and thereby said latch 5 is retracted with said actuating lever 7 so as to render the door openable. A handle latch and lock mechanism for a door, comprising: a body 1 which is installed on a door panel A; a handle grip 2 which is connected to said body 1 by a first pivot pin 8; a latch 15 which is retractably mounted on said body 1; an actuating lever 7 which is connected in said body 1 by said first pivot pin 8 and which is mounted unitarily with said handle grip 2 by a second pivot pin 13, a front end part 7a of the actuating lever 7 abutting on a third pivot pin 9 fixed on a rear end 5a of the latch 5 so as to retract said latch 5 owing to rotating of the handle grip 2 about said first pivot pin 8; a coiled compression spring 6 which is interposed between said body 1 and said latch 5 so as to urge the latch 5 to slide in an advancing direction; a bottom plate 18 which is fixed to said body 1 and which has therein a push rod hole 23; a push rod 24 which extends inside of the door through the push rod hole 23 and which when pushed from inside of the door retracts the latch 5 against the urging of said spring 6; and a lock 3 which is mounted on said handle grip 2 and which has a lock cam 15 secured to a rotor 4, said latch 5 becoming retractable after turning the lock cam 15; a reset lever 12 which is pivotally connected to said handle grip 2 by said second pivot pin 13 and which has a protrusive piece 12c formed at a rear end thereof, said protrusive piece 12c abutting on an eccentric projection 15a of said lock cam 15; a lock lever 10 which is connected to said rear end 5a of the latch 5 by said third pivot pin 8 and a rear end part 10c which is engageable with a receiving portion 20 protrusively provided on said bottom plate 18 so as to check the retracting of said latch 5; a reset spring 14 which is interposed between an inner wall 12a of the reset lever 12 and a rear vertical wall 7b of said actuating lever 7 and which pushes said protrusive piece 12c of the reset lever 12 against said lock cam 15 to hold an engagement therebetween and also pushes a front end part 12b of said reset lever 12 on a fore surface part 10b of said lock lever 10 to hold an engagement between said rear end part 10c of the lock lever 10 and said receiving portion 20 of the bottom plate 18; a leaf spring 11 which is secured at its front end 11a to said bottom plate 18 and which pushes up said lock lever 10 at its rear end 11b so as to release said engagement between said rear end part 10c of the lock lever 10 and said receiving portion 20 when said protrusive piece 12c of the reset lever 12 is pushed by an eccentric projection 15a of said lock cam 15 owing to a rotation of the lock cam 15 and thereby said reset lever 12 is rotated; whereby said rear end part 10c of the lock lever 10 disengages from said receiving portion 20 of the bottom plate 18, and the reset lever 12 pushed by said lock lever 10 is rotated about said second pivot pin 13, and then the handle grip 2 is rotated about said first pivot pin 8, and thereby said latch 5 is retracted with said actuating lever 7 so as to render the door openable.

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Door handle latch and lock mechanism

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Door handle latch and lock mechanism

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