US1393911A - Automobile-door latch - Google Patents

Automobile-door latch Download PDF

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Publication number
US1393911A
US1393911A US425149A US42514920A US1393911A US 1393911 A US1393911 A US 1393911A US 425149 A US425149 A US 425149A US 42514920 A US42514920 A US 42514920A US 1393911 A US1393911 A US 1393911A
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US
United States
Prior art keywords
bell crank
latch
crank lever
slot
automobile
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US425149A
Inventor
Lawrence A Schumaker
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Individual
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Individual
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Publication date
Application filed by Individual filed Critical Individual
Priority to US425149A priority Critical patent/US1393911A/en
Application granted granted Critical
Publication of US1393911A publication Critical patent/US1393911A/en
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Expired - Lifetime legal-status Critical Current

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Classifications

    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05BLOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B63/00Locks or fastenings with special structural characteristics
    • E05B63/18Locks or fastenings with special structural characteristics with arrangements independent of the locking mechanism for retaining the bolt or latch in the retracted position
    • E05B63/20Locks or fastenings with special structural characteristics with arrangements independent of the locking mechanism for retaining the bolt or latch in the retracted position released automatically when the wing is closed
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05BLOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B17/00Accessories in connection with locks
    • E05B17/0025Devices for forcing the wing firmly against its seat or to initiate the opening of the wing
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S292/00Closure fasteners
    • Y10S292/23Vehicle door latches
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T292/00Closure fasteners
    • Y10T292/08Bolts
    • Y10T292/096Sliding
    • Y10T292/0969Spring projected
    • Y10T292/097Operating means
    • Y10T292/0977Cam
    • Y10T292/0982Bolt blocking or disabling means
    • Y10T292/0983Involves rollback
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T292/00Closure fasteners
    • Y10T292/54Trippers
    • Y10T292/558Sliding bolt, swinging detent

Definitions

  • his invention relates to an automobile door latch and has for its principal object to provide a device of this nature which may be used with automobile doors or doors of buildings or other structures and which is provided with rigidly in a closed position thus rattling and at wind and cold.
  • Another object of the invention is to provide a latch which does not require the slampreventing the same time keep out the door is in its closed position.
  • a still further object of the invention is to genera ly improve upon latches of this character by providing a device which will be extremely simple, durable and inexpensive in construction, one which is efficient and reliable in operation, and well adapted to the purpose for which it is designed.
  • FIG. 1 is a rear elevation of the latch casing showing the bolt latch in an extended position
  • Fig. 2 is a rear elevation of the latch casing showing the latch bolt in a retracted position
  • Fig. 3 is a section taken on the line 83 of Fig. 1 looking in the direction of the arrow,
  • Fig. 4 is a section taken on line H of Fig. 1 looking in the direction of the arrow, and
  • Fig. 5 is a section taken on the line 55 of Fig. 1 looking in the direction of the arrow.
  • numeral 1 designates a cas- Specification of Letters Patent. Application filed November 19, 1920.
  • a block 4. is fixedly situated in the casing toward the center thereof as shown in Fig. 1 when the latch bolt is iii a locked position.
  • a bell crank lever 7 is rigidly mounted on the cylindrical bar '8 which is rotatably mounted in the casing 1.
  • the portion of the bar 8 which passes through the bell crank is preferably square as indicated in Fig. 1 so that this bell crank lever 7 will be actuated upon movement of the bar 8.
  • a suitable operating eye 9 is attached to one end of the bar 8 for rotating same.
  • the bell crank lever for receiving the pin 13 provided in the latch bolt 5.
  • stop extension 14 is this arm 10 and is adapted to abut the end the latch bolt 5 is in an extended position.
  • he arm 11 of the bell crank lever 7 is provided with a shoulder 15 at its end and this shoulder 15 is provided with a slot for receiving the rod 16 which is pivotally carried in the casingby means of a pin 17.
  • An expansion coil spring 18 is disposed around the bolt 16 so as to be between the eye 19 and washer 20.
  • a roller 21 having a slot therein for receiving the rod 16 is disposed bethe bell Crank lever 7 is rotated so as to take the position shown in Fig. 2 of the drawing tendency oi a part of the spring to rotate the bell crank lever 7 but to the contrary will push straight in alinement with the arm 11.
  • a tripping mechanism for the bell crank lever 7 which consists of a link 22 having a curved slot 23 therein for receiving thepin 24: provided on the arm 10 of the bell crank lever 7 One end of this link is used as shown at 25 and a pin extends through the ends of the yokes so as to pivotally support a trigger 26.
  • This trigger 26 consists of a shank 27 which is suitably pivoted intermediate its ends to the casing 1 as is shown at 28 and is provided with a right angularly extending extension 29 which is adapted to abut the door jamb 30 thus pulling upon the link 22 and slightly rotating the bell crank lever efliciently to angle to the bottom of: that at this the arm 11 latch bolt 5 place the bar 16 at an the casing 1 and it will be seen time the spring will push upon at an angle and thus cause the totake an extended position.
  • the bolt slot 31 provided in the door jamb 3O isbeveled outwardly or toward the irection in which the door will swing as shown at 32.
  • the beveled portion 6 of the latch bolt 5 will engage the beveled portion 32 and thus the spring 18 which will be pushing upon the latch bolt 5 through the intermediacy of the bell crank lever 7 will cause these two beveled surfaces to slide in relation toeach other and since may slide the door will necessarily close as far as possible thus preventing rattling and at the same time keeping out wind and cold.
  • a latch bolt bell crank rotatably will extend through the i attached to the other arm of the bell crank I

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  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Lock And Its Accessories (AREA)

Description

L. A. SCHUMAKER.
AUTOMOBILE DOOR LATCH- APPLICATION min NOV. 19. 1920.
Patented Oct.
18, 1921. 2 sums-snzzr Mmwxa.
L. A. SC'HUMAKER.
} AUTOMOBILE DOOR LATCH. APPLICATION FILED NOV. 19. 1920.
1,393,911. Patented (m 18, 1921'.
2 SHEET$SHEET 2.
.Jly A;
EA E
rmwntoz atkozmq UNITED STATES PATENT OFFICE.
AUTOMOBILE-D0 0R LATCH.
T 0 all whom it may concern Be it known that I, LAWRENCE A. SCHU- MAKER, a citizen of the United States, residing at Michigan City, in the county of La- Indiana, have invented certain new and useful 'Improvements in an Automobile-Door Latch, of which the following is a specification.
his invention relates to an automobile door latch and has for its principal object to provide a device of this nature which may be used with automobile doors or doors of buildings or other structures and which is provided with rigidly in a closed position thus rattling and at wind and cold.
Another object of the invention is to provide a latch which does not require the slampreventing the same time keep out the door is in its closed position.
A still further object of the invention is to genera ly improve upon latches of this character by providing a device which will be extremely simple, durable and inexpensive in construction, one which is efficient and reliable in operation, and well adapted to the purpose for which it is designed.
With these and numerous other objects in view, the invention resides in certain novel features of construction, and the combination and arrangement of parts as will be hereinafter fully described and claimed.
In the drawing I I Figure 1 is a rear elevation of the latch casing showing the bolt latch in an extended position,
Fig. 2 is a rear elevation of the latch casing showing the latch bolt in a retracted position,
Fig. 3 is a section taken on the line 83 of Fig. 1 looking in the direction of the arrow,
Fig. 4 is a section taken on line H of Fig. 1 looking in the direction of the arrow, and
Fig. 5 is a section taken on the line 55 of Fig. 1 looking in the direction of the arrow.
Referring to the drawings in detail it will be seen that the numeral 1 designates a cas- Specification of Letters Patent. Application filed November 19, 1920.
Patented Oct. 18, 1921; Serial No. 425,149.
ing which may be of any preferred construction and as shown is substantially rectangular in cross section having the lateral flange outer periphery and provided with apertures 3 so that the casing may be securely attached to a door in the usual manner. A block 4. is fixedly situated in the casing toward the center thereof as shown in Fig. 1 when the latch bolt is iii a locked position.
A bell crank lever 7 is rigidly mounted on the cylindrical bar '8 which is rotatably mounted in the casing 1. The portion of the bar 8 which passes through the bell crank is preferably square as indicated in Fig. 1 so that this bell crank lever 7 will be actuated upon movement of the bar 8. A suitable operating eye 9 is attached to one end of the bar 8 for rotating same. The bell crank lever for receiving the pin 13 provided in the latch bolt 5. stop extension 14 is this arm 10 and is adapted to abut the end the latch bolt 5 is in an extended position.
he arm 11 of the bell crank lever 7 is provided with a shoulder 15 at its end and this shoulder 15 is provided with a slot for receiving the rod 16 which is pivotally carried in the casingby means of a pin 17. The sides of the slot in the shoulder 15 from each other toward the end of 11 and form stops for the movement of the 1 rod 16 as will be later described. An expansion coil spring 18 is disposed around the bolt 16 so as to be between the eye 19 and washer 20. A roller 21 having a slot therein for receiving the rod 16 is disposed bethe bell Crank lever 7 is rotated so as to take the position shown in Fig. 2 of the drawing tendency oi a part of the spring to rotate the bell crank lever 7 but to the contrary will push straight in alinement with the arm 11.
I have provided a tripping mechanism for the bell crank lever 7 which consists of a link 22 having a curved slot 23 therein for receiving thepin 24: provided on the arm 10 of the bell crank lever 7 One end of this link is used as shown at 25 and a pin extends through the ends of the yokes so as to pivotally support a trigger 26. This trigger 26 consists of a shank 27 which is suitably pivoted intermediate its ends to the casing 1 as is shown at 28 and is provided with a right angularly extending extension 29 which is adapted to abut the door jamb 30 thus pulling upon the link 22 and slightly rotating the bell crank lever efliciently to angle to the bottom of: that at this the arm 11 latch bolt 5 place the bar 16 at an the casing 1 and it will be seen time the spring will push upon at an angle and thus cause the totake an extended position.
The bolt slot 31 provided in the door jamb 3O isbeveled outwardly or toward the irection in which the door will swing as shown at 32. The beveled portion 6 of the latch bolt 5 will engage the beveled portion 32 and thus the spring 18 which will be pushing upon the latch bolt 5 through the intermediacy of the bell crank lever 7 will cause these two beveled surfaces to slide in relation toeach other and since may slide the door will necessarily close as far as possible thus preventing rattling and at the same time keeping out wind and cold.
Obviously, the invention is not limited and restricted to the precise, and exact details of construction as illustrated and described, because it is susceptible of a variety of embodiments, and many minor mechanical changes may be made in such incorporation of the invention without departing fromv the substance or essence of the a trigger mechanism the bolt only preferred invention and without the sacrifice of any of its substantial benefits and advantages.
Having thus described my invention what I claim as new is i r 1. Incombination, a casing, a latch bolt slidable therein, a bell crank lever pivoted therein, one arm of said bell crank lever provided with a slot, a pin on said bolt adapted to ride in said slot, the other end of said bell crank'lever provided with a shoulder having a slot therein, a bar pivoted in the casing and having its end extending through and an expansion the slot coil spring holding the latch bolt in an extended position through the 'intermedia'cy of the bell crank lever.
2. In combination, slidable therein, a mounted in the casing, one arm of the bell crank lever provided with a slot, a pin on the latch bolt adapted to ride in the slot, the other arm of the bell crank lever provided with a shoulder having a slot extended therethrough, a rod pivotally carried in the easing so that one end slot in the shoulder, and a spring dlSPOSECl on the rod so as to hold the latch in a retracted or extended positionas described and for slightly moving. the bell crank lever so as to shunt the latch bolt in an extended position. r i 1 I 3. In combination, a casing, a bolt slidable therein, a bell crank lever having one arm attached to the boltcfor sliding same, means in said shoulder,
disposed on the rod for norma a casing, a latch bolt bell crank rotatably will extend through the i attached to the other arm of the bell crank I
US425149A 1920-11-19 1920-11-19 Automobile-door latch Expired - Lifetime US1393911A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3295699A (en) * 1964-08-28 1967-01-03 Jr John P Bauernschub Folding boom assembly
US4679416A (en) * 1984-08-06 1987-07-14 R. R. Brink Locking Systems, Inc. Trigger and latch bolt assembly
US5615919A (en) * 1995-09-28 1997-04-01 Ivey; Brandon C. Deadbolt extender
US5678870A (en) * 1996-01-31 1997-10-21 Sargent Manufacturing Company Reversible mortise lock

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3295699A (en) * 1964-08-28 1967-01-03 Jr John P Bauernschub Folding boom assembly
US4679416A (en) * 1984-08-06 1987-07-14 R. R. Brink Locking Systems, Inc. Trigger and latch bolt assembly
US5615919A (en) * 1995-09-28 1997-04-01 Ivey; Brandon C. Deadbolt extender
US5678870A (en) * 1996-01-31 1997-10-21 Sargent Manufacturing Company Reversible mortise lock

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