EP0019574A1 - Hebevorrichtung, insbesondere Seilrollenaufzug - Google Patents

Hebevorrichtung, insbesondere Seilrollenaufzug Download PDF

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Publication number
EP0019574A1
EP0019574A1 EP19800440001 EP80440001A EP0019574A1 EP 0019574 A1 EP0019574 A1 EP 0019574A1 EP 19800440001 EP19800440001 EP 19800440001 EP 80440001 A EP80440001 A EP 80440001A EP 0019574 A1 EP0019574 A1 EP 0019574A1
Authority
EP
European Patent Office
Prior art keywords
sheave
lifting device
axis
mobile
yoke
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
EP19800440001
Other languages
English (en)
French (fr)
Other versions
EP0019574B1 (de
Inventor
Edouard Singer
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.)
Individual
Original Assignee
Individual
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
Priority claimed from FR7913298A external-priority patent/FR2456704A2/fr
Priority claimed from FR8003533A external-priority patent/FR2476050B2/fr
Application filed by Individual filed Critical Individual
Priority to AT80440001T priority Critical patent/ATE6417T1/de
Publication of EP0019574A1 publication Critical patent/EP0019574A1/de
Application granted granted Critical
Publication of EP0019574B1 publication Critical patent/EP0019574B1/de
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D3/00—Portable or mobile lifting or hauling appliances
    • B66D3/04—Pulley blocks or like devices in which force is applied to a rope, cable, or chain which passes over one or more pulleys, e.g. to obtain mechanical advantage
    • B66D3/06—Pulley blocks or like devices in which force is applied to a rope, cable, or chain which passes over one or more pulleys, e.g. to obtain mechanical advantage with more than one pulley
    • B66D3/10—Applications of braking or detent devices

Definitions

  • the invention relates to a lifting device, in particular a muffle.
  • This muffle comprises at least one fixed sheave threaded on one end of the axis projecting with respect to the wing of the yoke in which the notch is produced and on which one of the strands of the rope wound around the mobile sheave is likely to be wound after passing through the notch made in the wing of the yoke interposed between the mobile sheave and the fixed sheave (s).
  • the present invention aims to remedy these drawbacks.
  • the invention as characterized in the claims, solves the problem of creating a safety block making it possible, on the one hand, to bring down a relatively large weight of the order of a hundred kilograms with a low holding force of the order of six kilograms and, on the other hand, increase safety by pinching the strand of cord wound on the second fixed sheave.
  • FIG. 1 shows, in elevation view, the lifting device produced in accordance with the present invention, the mobile sheave being in the normal use phase
  • Figure 2 shows a side view of Figure 1
  • FIG. 3 shows, in elevation view, the lifting device produced in accordance with the present invention, the mobile sheave being in the phase of use in a descender
  • Figure 4 shows a side view of Figure 3
  • FIG. 5 shows, in elevation view, the lifting device produced in accordance with the present invention, the mobile sheave being blocked
  • Figure 6 shows a side view of Figure 5
  • Figure 7 shows, in sectional view and in elevation, the lifting device provided with a fixed elastic sheave.
  • the device 101 comprises a yoke 102 consisting of two vertical wings 104.
  • the upper end 105 of these vertical wings 103, 104 is crossed by an axis 106 serving as a connection between the yoke 102 and a hooking member 107 such as a hook.
  • the two wings 103, 104 are crossed right through by an axis of rotation 108 around which pivots a mobile sheave 109.
  • first fixed sheave 114 1 mounted on the axis of rotation 108.
  • This first fixed sheave 114 1 also has a groove 127 in which is placed the rope 113 held by the flange 122 1 of the cover 121 1 .
  • the lower edge 128 of this fixed sheave 114 1 is situated on the same horizontal plane as the lower edge 129 of the vertical wing 104, which allows the passage of the rope 113 from the mobile sheave 109 to the first fixed sheave 1 14 1 .
  • This second fixed sheave 114 2 has two conical sides 116 1 and 116 2 including the small base 119 1 , 119 2 is integral with the hub 120.
  • the rope 113 is held by the flange 122 2 of the cover 121 2 .
  • the device 101 comprises a shoe 131 forming a brake.
  • This shoe 131 made of a non-slip material and, in particular of rubber, is mounted on a sliding plate made of glass fibers 132.
  • This plate 132 includes a vertical light 133 through which passes an axis 134 serving as an element of connection between the plate 132 and the vertical wing 103 of the yoke 102.
  • the shoe 131 has, at its lower part 135, the shape of a half-sheave provided with a groove 136 adapted to the rope used 113 and, at its upper part 137, a semi-toric boss 138 coming, under the action of the force applied to the rope, enter the groove 112 of the mobile sheave 109.
  • the rope 113 is partially wound around the mobile sheave 109 (see Figures 1 and 2).
  • the guarantor 123 is wound around the shoe 131 by engaging it in the groove 136 then around the fixed sheave 114 1 .
  • the plate 132 and shoe 131 assembly slides upwards and the semi-toric boss 138 is introduced into the groove 112 of the mobile sheave 109.
  • the passage of the guarantor of the rope 113 of the shoe 131 towards the fixed sheave 114 1 is possible because the lower edge 128 of the fixed sheave 114 1 and the lower edge 129 of the vertical wing 104 are on the same horizontal plane.
  • the lifting device 201 comprises the yoke 202 composed of two vertical wings 203, 204. These two wings 203, 204 are crossed at their upper end by an axis 206 on which is threaded a hub 239 crossed vertically by a threaded axis 240 on which East screwed a hook 241 of the hooking member 207. On the rod 242 of this hook 241 is threaded a socket 243 crossed by an axis 244 ensuring the connection between said socket 243 and a locking element 245. This locking element 245 cooperates with the tip 246 of the hook 241 to prevent the rope from coming out of the loop 247 of the hook 241.
  • the two vertical wings 203, 204 are crossed by the axis of rotation 208.
  • this axis 208 is threaded between the internal faces 210, 211 of the vertical wings 203, 204 a needle sleeve 248 serving as a connection between said axis 208 and the mobile sheave 209.
  • This axis 208 also serves as a support for the first fixed sheave 214 1 .
  • the immobility in rotation of this fixed sheave 2141 is ensured by a tongue 249 of the external face 226 of the vertical wing 204 engaging in a groove 250 formed in the external face 251 of the fixed sheave 2141.
  • the latter has on its external face 230 a groove 253 in which engages a tongue 254 of the second fixed sheave 2 34 2 .
  • the lateral displacement of the axis of rotation 208 is annihilated, on the one hand, by a clamping element 255 screwed on the threaded end 256 and, on the other hand, by a shoulder 257 pressing against the second external face 252 of the first fixed sheave 214 1 .
  • the second fixed sheave 214 2 is composed of two flanges 258, 259.
  • Each flange 258, 259 has a frustoconical flank 260, 261 leading, on the one hand, to the outer periphery 262, 263 and, on the other hand, to a shoulder 264, 265.
  • the two shoulders 264, 265 face each other and are applied one against the other as a result of the action of at least one elastic element 266.
  • the two frustoconical sides 260, 261 form between- them the groove 267 in which is housed the free strand of the rope.
  • This stop ring 271 has a conical hole 273 in which the head 274 of the axis 208 is embedded.
  • the device 201 comprises a shoe 231 crossed by an axis 234 serving as a connecting element between the shoe 231 and the vertical wing 203.
  • a plate 232 is threaded on this axis 234 held by a stop flange 275.
  • the shoe 231 has a vertical light 276.
  • the plate 232 is provided with a light 233 as well as the stop flange 275. Therefore, the assembly formed by the pad 231, the plate 232 and the stop flange 275 can slide vertically.
  • the shoe 231 has at its lower part 235 a groove 236 in which the rope is housed and at its upper part 237 a semi-toric boss 238 which, in the event of operation, engages in the groove 212 of the mobile sheave 209 and blocks this last.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
  • Emergency Lowering Means (AREA)
EP19800440001 1979-05-18 1980-05-09 Hebevorrichtung, insbesondere Seilrollenaufzug Expired EP0019574B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT80440001T ATE6417T1 (de) 1979-05-18 1980-05-09 Hebevorrichtung, insbesondere seilrollenaufzug.

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
FR7913298A FR2456704A2 (fr) 1977-07-27 1979-05-18 Dispositif de levage en particulier moufle
FR7913298 1979-05-18
FR8003533A FR2476050B2 (fr) 1977-07-27 1980-02-14 Dispositif de levage en particulier moufle
FR8003533 1980-02-14

Publications (2)

Publication Number Publication Date
EP0019574A1 true EP0019574A1 (de) 1980-11-26
EP0019574B1 EP0019574B1 (de) 1984-02-29

Family

ID=26221176

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19800440001 Expired EP0019574B1 (de) 1979-05-18 1980-05-09 Hebevorrichtung, insbesondere Seilrollenaufzug

Country Status (2)

Country Link
EP (1) EP0019574B1 (de)
DE (1) DE3066740D1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0052572A2 (de) * 1980-11-19 1982-05-26 Edouard Singer Hebevorrichtung, insbesondere Seilflasche

Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE128109C (de) *
NL28404C (de) * 1900-01-01
FR442199A (fr) * 1911-04-26 1912-08-26 Charles Dewever Treuil à friction pour sauvetage en cas d'incendie
US1636273A (en) * 1927-01-15 1927-07-19 Arnold W Baker Pulley block
GB287907A (en) * 1927-03-29 1928-05-31 Ane Pieter Schat Improvements in pulley blocks
FR677148A (fr) * 1929-06-20 1930-03-04 Palan pour marchandises, vélos, etc.
FR715418A (fr) * 1930-08-21 1931-12-03 Poulie de levage à frein
FR1408799A (fr) * 1964-07-06 1965-08-20 Usines Du Paquis Sa Des Moufle
DE1300409B (de) * 1966-01-26 1969-07-31 Elvstrom Paul Bert Seilrolle fuer Taue
US3756565A (en) * 1970-11-24 1973-09-04 Tomy K K Pulley block with brake
DE2237622A1 (de) * 1972-07-31 1974-04-11 Heri Dipl Ing Schuller Abseilgerät zur rettung aus feuersgefahr
DE2258424A1 (de) * 1972-11-29 1974-05-30 Heri Dipl-Ing Schuller Einseil-abseilgeraet
DE2342244A1 (de) * 1972-07-31 1975-02-27 Heri Dipl Ing Schuller Abseilgerät zur rettung aus feuersgefahr

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE128109C (de) *
NL28404C (de) * 1900-01-01
FR442199A (fr) * 1911-04-26 1912-08-26 Charles Dewever Treuil à friction pour sauvetage en cas d'incendie
US1636273A (en) * 1927-01-15 1927-07-19 Arnold W Baker Pulley block
GB287907A (en) * 1927-03-29 1928-05-31 Ane Pieter Schat Improvements in pulley blocks
FR677148A (fr) * 1929-06-20 1930-03-04 Palan pour marchandises, vélos, etc.
FR715418A (fr) * 1930-08-21 1931-12-03 Poulie de levage à frein
FR1408799A (fr) * 1964-07-06 1965-08-20 Usines Du Paquis Sa Des Moufle
DE1300409B (de) * 1966-01-26 1969-07-31 Elvstrom Paul Bert Seilrolle fuer Taue
US3756565A (en) * 1970-11-24 1973-09-04 Tomy K K Pulley block with brake
DE2237622A1 (de) * 1972-07-31 1974-04-11 Heri Dipl Ing Schuller Abseilgerät zur rettung aus feuersgefahr
DE2342244A1 (de) * 1972-07-31 1975-02-27 Heri Dipl Ing Schuller Abseilgerät zur rettung aus feuersgefahr
DE2258424A1 (de) * 1972-11-29 1974-05-30 Heri Dipl-Ing Schuller Einseil-abseilgeraet

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0052572A2 (de) * 1980-11-19 1982-05-26 Edouard Singer Hebevorrichtung, insbesondere Seilflasche
EP0052572A3 (de) * 1980-11-19 1984-01-04 Edouard Singer Hebevorrichtung, insbesondere Seilflasche

Also Published As

Publication number Publication date
DE3066740D1 (en) 1984-04-05
EP0019574B1 (de) 1984-02-29

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