FR2293558A1 - Spring aided jack for tank access cover - has spring biased in opening direction, and cable over pulley - Google Patents

Spring aided jack for tank access cover - has spring biased in opening direction, and cable over pulley

Info

Publication number
FR2293558A1
FR2293558A1 FR7439522A FR7439522A FR2293558A1 FR 2293558 A1 FR2293558 A1 FR 2293558A1 FR 7439522 A FR7439522 A FR 7439522A FR 7439522 A FR7439522 A FR 7439522A FR 2293558 A1 FR2293558 A1 FR 2293558A1
Authority
FR
France
Prior art keywords
spring
jack
cover
tank access
opening direction
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.)
Granted
Application number
FR7439522A
Other languages
French (fr)
Other versions
FR2293558B1 (en
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.)
TLD Group SAS
Original Assignee
TLD Group SAS
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 TLD Group SAS filed Critical TLD Group SAS
Priority to FR7439522A priority Critical patent/FR2293558A1/en
Publication of FR2293558A1 publication Critical patent/FR2293558A1/en
Application granted granted Critical
Publication of FR2293558B1 publication Critical patent/FR2293558B1/fr
Granted legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F3/00—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices
    • E05F3/04—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices with liquid piston brakes
    • E05F3/10—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices with liquid piston brakes with a spring, other than a torsion spring, and a piston, the axes of which are the same or lie in the same direction
    • E05F3/108—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices with liquid piston brakes with a spring, other than a torsion spring, and a piston, the axes of which are the same or lie in the same direction with piston rod protruding from the closer housing; Telescoping closers
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F15/00—Power-operated mechanisms for wings
    • E05F15/50—Power-operated mechanisms for wings using fluid-pressure actuators
    • E05F15/53—Power-operated mechanisms for wings using fluid-pressure actuators for swinging wings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41H—ARMOUR; ARMOURED TURRETS; ARMOURED OR ARMED VEHICLES; MEANS OF ATTACK OR DEFENCE, e.g. CAMOUFLAGE, IN GENERAL
    • F41H5/00—Armour; Armour plates
    • F41H5/22—Manhole covers, e.g. on tanks; Doors on armoured vehicles or structures
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F1/00—Closers or openers for wings, not otherwise provided for in this subclass
    • E05F1/08—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings
    • E05F1/10—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings for swinging wings, e.g. counterbalance
    • E05F1/1041—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings for swinging wings, e.g. counterbalance with a coil spring perpendicular to the pivot axis
    • E05F1/105—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings for swinging wings, e.g. counterbalance with a coil spring perpendicular to the pivot axis with a compression spring
    • E05F1/1058—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings for swinging wings, e.g. counterbalance with a coil spring perpendicular to the pivot axis with a compression spring for counterbalancing
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05Y2900/00—Application of doors, windows, wings or fittings thereof
    • E05Y2900/50—Application of doors, windows, wings or fittings thereof for vehicles
    • E05Y2900/504—Application of doors, windows, wings or fittings thereof for vehicles for armored vehicles

Abstract

The spring assisted jack (3) is for manipulating heavy doors (1) with horizontal hinges such as tank access-covers. Lifting and lowering phases are of similar duration due to the spring which piston (11) is connected to the cover (1) and to a spring (14). The spring forces which assist jack motor during lifting, oppose it during lowering. The jack acts in a direction such that whatever the cover angle the jack moment balances the plate weight moment. The spring is between the piston and the nose of the jack housing, or is an oleopneumatic accumulator. The piston connects (9) to the cover (1) via cable (7) traversing a pulley wheel (8).
FR7439522A 1974-12-03 1974-12-03 Spring aided jack for tank access cover - has spring biased in opening direction, and cable over pulley Granted FR2293558A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7439522A FR2293558A1 (en) 1974-12-03 1974-12-03 Spring aided jack for tank access cover - has spring biased in opening direction, and cable over pulley

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7439522A FR2293558A1 (en) 1974-12-03 1974-12-03 Spring aided jack for tank access cover - has spring biased in opening direction, and cable over pulley

Publications (2)

Publication Number Publication Date
FR2293558A1 true FR2293558A1 (en) 1976-07-02
FR2293558B1 FR2293558B1 (en) 1977-07-01

Family

ID=9145496

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7439522A Granted FR2293558A1 (en) 1974-12-03 1974-12-03 Spring aided jack for tank access cover - has spring biased in opening direction, and cable over pulley

Country Status (1)

Country Link
FR (1) FR2293558A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3905065A1 (en) * 1989-02-18 1990-08-23 Dingfelder & Hadler Device for adjusting windows, flaps and the like
AU718408B1 (en) * 1998-11-04 2000-04-13 Trimax Associates Chan Yeh Co., Ltd. Jack

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3905065A1 (en) * 1989-02-18 1990-08-23 Dingfelder & Hadler Device for adjusting windows, flaps and the like
AU718408B1 (en) * 1998-11-04 2000-04-13 Trimax Associates Chan Yeh Co., Ltd. Jack

Also Published As

Publication number Publication date
FR2293558B1 (en) 1977-07-01

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Legal Events

Date Code Title Description
ST Notification of lapse