GB753129A - Improvements in or relating to power door operating systems - Google Patents

Improvements in or relating to power door operating systems

Info

Publication number
GB753129A
GB753129A GB8733/54A GB873354A GB753129A GB 753129 A GB753129 A GB 753129A GB 8733/54 A GB8733/54 A GB 8733/54A GB 873354 A GB873354 A GB 873354A GB 753129 A GB753129 A GB 753129A
Authority
GB
United Kingdom
Prior art keywords
door
valve
accumulator
engine
closing
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
Application number
GB8733/54A
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.)
National Pneumatic Co Inc
Original Assignee
National Pneumatic Co Inc
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 National Pneumatic Co Inc filed Critical National Pneumatic Co Inc
Publication of GB753129A publication Critical patent/GB753129A/en
Expired legal-status Critical Current

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05FDEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F15/00Power-operated mechanisms for wings
    • E05F15/50Power-operated mechanisms for wings using fluid-pressure actuators
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05YINDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2900/00Application of doors, windows, wings or fittings thereof
    • E05Y2900/50Application of doors, windows, wings or fittings thereof for vehicles
    • E05Y2900/53Type of wing
    • E05Y2900/531Doors

Landscapes

  • Lock And Its Accessories (AREA)
  • Power-Operated Mechanisms For Wings (AREA)

Abstract

753,129. Door-operating apparatus. NATIONAL PNEUMATIC CO., Inc. March 25, 1954 [Dec. 1, 1953], No. 8733/54. Class 65 (1). An hydraulic door engine for vehicle doors, supplied with fluid under pressure from a motordriven pump through a control valve for opening and closing, is also connected to an accumulator when the valve is in the door-closing position so that any manual opening of a door forces fluid into the accumulator and as soon as the door is released it is re-closed by the pressure in the accumulator. In the arrangement shown, the pump 22 draws fluid from a reservoir 24 (to which it has a relief by-pass 60) and delivers it to an accumulator 16 (with which is associated a pressure-sensitive pump-controlling switch 18) and a valve 10 which may be operated electrically, pneumatically, hydraulically, or by hand. The valve 10 in one position connects the accumulator and pump to the left-hand end of the door-engine 8 and the other end of the engine to the reservoir through pipe 52, to open the door, and in the other position reverses the connections to close it; the passage 44 is restricted, to reduce the closing speed by throttling the exhaust, but is by-passed to allow free opening by a one-way valve 66. The door can be opened manually against the pressure applied by the accumulator, and this pressure will re-close the door as soon as it is released. If the passage 44 is large enough to allow free opening the passage with the valve 66 may be omitted. In a modification, Fig. 3 (not shown), a differential engine is used, and the accumulator is incorporated in it at the small (door-closing) end, the valve 10 controlling the other end only. The passage 44 is made of full size, and the closing of the door is checked by a restriction placed on the supply side of the valve 10. A power unit comprising all the hydraulic system in a compact assembly is described (Fig. 1, not shown), the engine actuating a rack engaging a toothed-sector on a shaft carrying a door-operating arm; the end of the sector meets a stop when the doors are open.
GB8733/54A 1953-12-01 1954-03-25 Improvements in or relating to power door operating systems Expired GB753129A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US753129XA 1953-12-01 1953-12-01

Publications (1)

Publication Number Publication Date
GB753129A true GB753129A (en) 1956-07-18

Family

ID=22124888

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8733/54A Expired GB753129A (en) 1953-12-01 1954-03-25 Improvements in or relating to power door operating systems

Country Status (1)

Country Link
GB (1) GB753129A (en)

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