FR2287580A1 - Caliper type mine shield support - has roof shield hinged at rear to caving shield and incorporates swivel cylinder - Google Patents

Caliper type mine shield support - has roof shield hinged at rear to caving shield and incorporates swivel cylinder

Info

Publication number
FR2287580A1
FR2287580A1 FR7435354A FR7435354A FR2287580A1 FR 2287580 A1 FR2287580 A1 FR 2287580A1 FR 7435354 A FR7435354 A FR 7435354A FR 7435354 A FR7435354 A FR 7435354A FR 2287580 A1 FR2287580 A1 FR 2287580A1
Authority
FR
France
Prior art keywords
shield
roof
caving
shields
hinged
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
FR7435354A
Other languages
French (fr)
Other versions
FR2287580B1 (en
Inventor
Paul Fanget
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.)
Bennes Marrel SA
Original Assignee
Bennes Marrel SA
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 Bennes Marrel SA filed Critical Bennes Marrel SA
Priority to FR7435354A priority Critical patent/FR2287580A1/en
Priority to DE19752545605 priority patent/DE2545605A1/en
Publication of FR2287580A1 publication Critical patent/FR2287580A1/en
Application granted granted Critical
Publication of FR2287580B1 publication Critical patent/FR2287580B1/fr
Granted legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
    • E21D23/0004—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor along the working face
    • E21D23/0034—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor along the working face comprising a goaf shield articulated to a base member
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
    • E21D23/04—Structural features of the supporting construction, e.g. linking members between adjacent frames or sets of props; Means for counteracting lateral sliding on inclined floor
    • E21D23/06—Special mine caps or special tops of pit-props for permitting step-by-step movement

Abstract

The shield mine support consists of a floor bar (1), prop activated (6) caving shield (2) and a roof shield (4) hinged to this at the upper end. The joint (5) between the caving and roof shields lies at the rear end of the roof shield, a swivel cylinder (7) being clamped between the caving and roof shields. In its service position, the joint should stant vertically over the centre area of the floor bar. Independent controls should be provided for the prop legs and the cylinder(s). The maximum pressures involved in the props and cylinders should be in a ratio which corresponds to a supporting force acting on the central area of the roof shield. Both roof and caving shields should present closed endfaces at the front and rear and can be fitted with side skirting shields (9, 10).
FR7435354A 1974-10-11 1974-10-11 Caliper type mine shield support - has roof shield hinged at rear to caving shield and incorporates swivel cylinder Granted FR2287580A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR7435354A FR2287580A1 (en) 1974-10-11 1974-10-11 Caliper type mine shield support - has roof shield hinged at rear to caving shield and incorporates swivel cylinder
DE19752545605 DE2545605A1 (en) 1974-10-11 1975-10-11 SHIELD UNIT

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7435354A FR2287580A1 (en) 1974-10-11 1974-10-11 Caliper type mine shield support - has roof shield hinged at rear to caving shield and incorporates swivel cylinder

Publications (2)

Publication Number Publication Date
FR2287580A1 true FR2287580A1 (en) 1976-05-07
FR2287580B1 FR2287580B1 (en) 1984-07-06

Family

ID=9144329

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7435354A Granted FR2287580A1 (en) 1974-10-11 1974-10-11 Caliper type mine shield support - has roof shield hinged at rear to caving shield and incorporates swivel cylinder

Country Status (2)

Country Link
DE (1) DE2545605A1 (en)
FR (1) FR2287580A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2753059A1 (en) * 1976-12-07 1978-06-08 Charbonnages De France POST, WHICH CAN BE TRAVELED BY OUR OWN DRIVE MECHANISM

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2753059A1 (en) * 1976-12-07 1978-06-08 Charbonnages De France POST, WHICH CAN BE TRAVELED BY OUR OWN DRIVE MECHANISM

Also Published As

Publication number Publication date
FR2287580B1 (en) 1984-07-06
DE2545605A1 (en) 1976-04-22

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Legal Events

Date Code Title Description
ST Notification of lapse