US762455A - Lock for elevator-doors. - Google Patents

Lock for elevator-doors. Download PDF

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Publication number
US762455A
US762455A US1904190445A US762455A US 762455 A US762455 A US 762455A US 1904190445 A US1904190445 A US 1904190445A US 762455 A US762455 A US 762455A
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US
United States
Prior art keywords
door
rack
pawl
elevator
frame
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
Inventor
Fred W Tobey
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CINCINNATI MANUFACTURING Co
Original Assignee
CINCINNATI Manufacturing Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by CINCINNATI Manufacturing Co filed Critical CINCINNATI Manufacturing Co
Priority to US1904190445 priority Critical patent/US762455A/en
Application granted granted Critical
Publication of US762455A publication Critical patent/US762455A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B13/00—Doors, gates, or other apparatus controlling access to, or exit from, cages or lift well landings
    • B66B13/02—Door or gate operation
    • B66B13/14—Control systems or devices
    • B66B13/16—Door or gate locking devices controlled or primarily controlled by condition of cage, e.g. movement or position
    • B66B13/18—Door or gate locking devices controlled or primarily controlled by condition of cage, e.g. movement or position without manually-operable devices for completing locking or unlocking of doors
    • B66B13/20—Lock mechanisms actuated mechanically by abutments or projections on the cages
    • Y—GENERAL 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S16/00—Miscellaneous hardware, e.g. bushing, carpet fastener, caster, door closer, panel hanger, attachable or adjunct handle, hinge, window sash balance
    • Y10S16/20—Door brakes, e.g. track or guideway
    • Y—GENERAL 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S292/00—Closure fasteners
    • Y10S292/46—Sliding door fasteners
    • Y—GENERAL 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T292/00—Closure fasteners
    • Y10T292/08—Bolts
    • Y10T292/1043—Swinging
    • Y10T292/1063—Gravity actuated
    • Y10T292/1064—Operating means

Definitions

  • Another object of my invention is to provide a lock which cannot be opened from the outside and preferably which is inaccessible even on the inside to the operator.
  • FIG. 1 is an inside view of the'elevatordoor.
  • Fig. 2 is a side view of the automatic trip, showing the relative position of the car.
  • Fig. 3 is an outsideview of the top of the doorway.
  • Fig. 4 is a top plan view of the locking-pawl and releasing-plate.
  • A represents the elevator-door; A, the panel for the elevator-opening; B, the side frame; C, the top horizontal guideway on which the door member A slides.
  • D represents a journal-bracket carrying the roller E, traveling upon the top of the way C.
  • F represents a section of the car. (See Fig. 2.)
  • Gr represents the top of the moving door member A. It is provided with the rack H, the teeth of which are inclined on one side in the direction in which the door moves when closing.
  • I represents a pawl pivoted on the way C, 5 the depending end of which engages the teeth of the rack H, so as to automatically be raised, allowing the door member A to be moved freely in the direction of. closing the door,
  • e representsa coil-spring one end of which is secured to the sliding plate and the other end of which is secured to a boltf on the way 0.
  • N represents the floor
  • the trip-lever M preferably extends downward to the floor and is provided with a cam-shaped tripping end 0.
  • the car F is provided with a lug P, adapted to engage the end 0 and shift the lever M on its 30 fulcrum, thereby shifting the sliding plate J toward the pawl, releasing the same from the rack H. While the car is in position on a given floor the pawl I is held released and the door may be freely manipulated by the 5 operator. When the car leaves a floor, the lug P is disengaged from the tripping end 0 and the spring a returns the sliding plate J and the lever M to normal position, in which the pawl is in engagement withthe rack-teeth. 9
  • the rack is the preferred or specific form of theinvention; but genericall ya plate might be provided formed with any suitable locking-detents adapted to be engaged and disengaged with the depending end of the pawl in the manner and for the purposes described. Also the relative positions of the locking members might be reversed.
  • I claim- 1 In combination with an elevator-doorwayframe and sliding door, of a rack mounted on top of the moving door, a pawl pivoted to the top frame, and having a depending end engaging the rack-teeth, the rack-teeth being inclined to allow the door to move in a direction of closing but to interlock the pawl and rack in the direction of opening, a shifting member having a horizontal guideway connection with the door-frame, the said shifting member and the said pawl having a cam and pin adapted to lift the pawl from the rack, and means for actuating the said shifting member to release the pawl, substantially as described.
  • a pawl pivoted to the top frame, and having a depending end engaging the rack-teeth, the rack-teeth being inclined to allow the door to move in a direction of closing but to interlock the pawl and rack in the direction of opening, a shifting membefhaving a horizontal guideway connection with the said shifting member and the said pawl having a cam and pin adapted to lift the pawl from the rack, and means actuated by the car to operate said shifting member to release the pawl, substantially as described.
  • a pawl pivoted to the top frame, and havinga depending end engaging the rack-teeth, the rack-teeth being inclined to allow the door to move in a direction of closing but to interlock the pawl and rack in the direction of opening, a shifting member movably secured on the door-frame, the said shifting member and the said pawl having a cam and pin adapted to lift the pawl from the rack, and a lever fulcrumed to the door-frame and to the said shifting member, said lever havinga cam end interposed in the path of elevator-car travel, whereby the car trips said lever, and a spring to hold the said tripping mechanism normally in disengaged position, substantially as described.
  • a pawl pivoted to the top frame, and having a depending end engaging the rack-teeth, the rack-teeth being inclined to allow the door to move in a direction of closing but to interlock the pawl and rack in the direction of opening, a shifting member movably secured on the door-frame, the said shifting member and the said pawl having a cam and pin adapted to lift the pawl from the rack, and a lever fulcrumed to the door-frame and to the said shifting member, said lever having a cam end interposed in the path of elevator-car travel, whereby the elevator-car trips said lever, and a spring to hold the said tripping mechanism normally in disengaged position, the car being provided with a projecting lug, adapted to engage and trip the end of said lever, substantially as described.
  • a doorway-frame and door a rack on the door having upwardlyprojecting inclined teeth, a pawl pivoted to the frame having one end depending in looking relation with the rack-teeth, a trip on the door- .frame adapted to engage under and lift said pawl from the rack, substantially as described.
  • a rack on the door having upwardlyprojecting ineli ned teeth
  • a pawl pivoted to the doorway-frame having one end depending in locking relation with the rack-teeth
  • a trip having a horizontal guideway connection with the frame, said trip being adapted to engage A under and lift the pawl from the rack-teeth
  • a lever pivoted to the frame engaging the trip for sliding the same said lever having an end projected in the path of elevator-car travel and means on the car for engaging the lever, substantially as described.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Automation & Control Theory (AREA)
  • Elevator Door Apparatuses (AREA)

Description

No. 762,455. PATENTED JUNE 14, 1904. F. W. TOBEY.
LOOK FOR ELEVATOR DOORS.
APPLICATION IILED'JAN. 25,1904.
no MODEL.
UNITED STATES Patented June 14, 1904.
PATENT OFFICE.
FRED W. TOBEY, OF NORWOOD, OI IIO, ASSIGINOR TO THE CINCINNATI MANUFACTURING COMPANY, OF CINCINNATI, OHIO, A CORPORATION.
LOOK FOR ELEVATOR-DOORS.
SPECIFICATION forming part of Letters Patent No. 762,455, dated June 14, 1904.
Application filed January 25,1904. Sta No. 190,445. (Nomodeh) To all whom it may concern:
Be it known that I, FRED W. TOBEY, a citia to hold the door in any position in which it stops and which will be automatically released by the elevator-car.
Another object of my invention is to provide a lock which cannot be opened from the outside and preferably which is inaccessible even on the inside to the operator.
The results of my mechanism are that when the door is shut it will be automatically locked and then only released when the car is in juxtaposition to the door-opening, at which time the operator can freely open and close the door. After the car leaves the door of a 5 given floor it cannot be opened until it returns to that floor.
The features of my invention are more fully set forth in the description of the accompanying drawings, forming a part of this specifi- 3 cation, in which Figure 1 is an inside view of the'elevatordoor. Fig. 2 is a side view of the automatic trip, showing the relative position of the car. Fig. 3 is an outsideview of the top of the doorway. Fig. 4 is a top plan view of the locking-pawl and releasing-plate.
A represents the elevator-door; A, the panel for the elevator-opening; B, the side frame; C, the top horizontal guideway on which the door member A slides.
D represents a journal-bracket carrying the roller E, traveling upon the top of the way C.
F represents a section of the car. (See Fig. 2.)
Gr represents the top of the moving door member A. It is provided with the rack H, the teeth of which are inclined on one side in the direction in which the door moves when closing.
I represents a pawl pivoted on the way C, 5 the depending end of which engages the teeth of the rack H, so as to automatically be raised, allowing the door member A to be moved freely in the direction of. closing the door,
but which locks the door against movement in the direction of opening.
J represents a sliding plate provided with slots at a, engaging the bolts 6 b, secured into the way (1. This method of securing allows the plate J to be shifted in either direction parallel with the way C. Said plate has a front cam-shoulder K engaging under a pin L on the end of the pawl I. Obviously when this plate J is shifted toward the pawl I the shoulder K engaging under the pin L serves 5 to lift the pawl I from engagement with the teeth ll of the rack H.
M represents a tripping-lever intermediately fulcrumed at 0 to the side door-frame B. The top of said trip-lever M is pivoted at (Z 7 upon the sliding plate J.
e representsa coil-spring one end of which is secured to the sliding plate and the other end of which is secured to a boltf on the way 0.
N represents the floor, and the trip-lever M preferably extends downward to the floor and is provided with a cam-shaped tripping end 0. The car F is provided with a lug P, adapted to engage the end 0 and shift the lever M on its 30 fulcrum, thereby shifting the sliding plate J toward the pawl, releasing the same from the rack H. While the car is in position on a given floor the pawl I is held released and the door may be freely manipulated by the 5 operator. When the car leaves a floor, the lug P is disengaged from the tripping end 0 and the spring a returns the sliding plate J and the lever M to normal position, in which the pawl is in engagement withthe rack-teeth. 9
It is obvious that this look is operative along the entire path of the door movement, so that the door will lock in any position in which it is accidentally left.
Many accidents are occasioned by the fact that the attendant when starting the car gives the door a throw in the direction of closing. and it either does not slide far enough to engage the catch in the door-frame or it bounces back without engagement, leaving the door open and freely movable in its path of travel. Obviously with my mechanism this accident could not occur.
The rack is the preferred or specific form of theinvention; but genericall ya plate might be provided formed with any suitable locking-detents adapted to be engaged and disengaged with the depending end of the pawl in the manner and for the purposes described. Also the relative positions of the locking members might be reversed.
Having described my invention, I claim- 1. In combination with an elevator-doorwayframe and sliding door, of a rack mounted on top of the moving door, a pawl pivoted to the top frame, and having a depending end engaging the rack-teeth, the rack-teeth being inclined to allow the door to move in a direction of closing but to interlock the pawl and rack in the direction of opening, a shifting member having a horizontal guideway connection with the door-frame, the said shifting member and the said pawl having a cam and pin adapted to lift the pawl from the rack, and means for actuating the said shifting member to release the pawl, substantially as described.
2. In combination with an elevator-doorway frame and sliding door, of a rack mounted on top of the moving door, a pawl pivoted to the top frame, and having a depending end engaging the rack-teeth, the rack-teeth being inclined to allow the door to move in a direction of closing but to interlock the pawl and rack in the direction of opening, a shifting membefhaving a horizontal guideway connection with the said shifting member and the said pawl having a cam and pin adapted to lift the pawl from the rack, and means actuated by the car to operate said shifting member to release the pawl, substantially as described.
3. In combination with an elevator-door- Way frame and sliding door, of a rack mounted on top of the moving door, a pawl pivoted to the top frame, and havinga depending end engaging the rack-teeth, the rack-teeth being inclined to allow the door to move in a direction of closing but to interlock the pawl and rack in the direction of opening, a shifting member movably secured on the door-frame, the said shifting member and the said pawl having a cam and pin adapted to lift the pawl from the rack, and a lever fulcrumed to the door-frame and to the said shifting member, said lever havinga cam end interposed in the path of elevator-car travel, whereby the car trips said lever, and a spring to hold the said tripping mechanism normally in disengaged position, substantially as described.
4. In combination with an elevator-doorway frame and sliding door, of a rack mounted on top of the moving door, a pawl pivoted to the top frame, and having a depending end engaging the rack-teeth, the rack-teeth being inclined to allow the door to move in a direction of closing but to interlock the pawl and rack in the direction of opening, a shifting member movably secured on the door-frame, the said shifting member and the said pawl having a cam and pin adapted to lift the pawl from the rack, and a lever fulcrumed to the door-frame and to the said shifting member, said lever having a cam end interposed in the path of elevator-car travel, whereby the elevator-car trips said lever, and a spring to hold the said tripping mechanism normally in disengaged position, the car being provided with a projecting lug, adapted to engage and trip the end of said lever, substantially as described.
.. 5. In an elevator, a doorway-frame and door, a rack on the door having upwardlyprojecting inclined teeth, a pawl pivoted to the frame having one end depending in looking relation with the rack-teeth, a trip on the door- .frame adapted to engage under and lift said pawl from the rack, substantially as described.
6. In an elevator, at doorway-frame and door, a rack on the door having upwardlyprojecting ineli ned teeth, a pawl pivoted to the doorway-frame having one end depending in locking relation with the rack-teeth, a trip having a horizontal guideway connection with the frame, said trip being adapted to engage A under and lift the pawl from the rack-teeth, a lever pivoted to the frame engaging the trip for sliding the same, said lever having an end projected in the path of elevator-car travel and means on the car for engaging the lever, substantially as described.
In testimony whereof I have hereunto set my hand.
FRED W. TOBEY.
itncsses:
OLIVER B. KAIsER, LUISE Been.
US1904190445 1904-01-25 1904-01-25 Lock for elevator-doors. Expired - Lifetime US762455A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3291453A (en) * 1964-05-11 1966-12-13 William B Jaspert Combined wall and awning structure

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3291453A (en) * 1964-05-11 1966-12-13 William B Jaspert Combined wall and awning structure

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