EP0444161A1 - Load hook device. - Google Patents
Load hook device.Info
- Publication number
- EP0444161A1 EP0444161A1 EP90910515A EP90910515A EP0444161A1 EP 0444161 A1 EP0444161 A1 EP 0444161A1 EP 90910515 A EP90910515 A EP 90910515A EP 90910515 A EP90910515 A EP 90910515A EP 0444161 A1 EP0444161 A1 EP 0444161A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- load
- hook
- spring
- rod
- connection point
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
- B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
- B66C1/22—Rigid members, e.g. L-shaped members, with parts engaging the under surface of the loads; Crane hooks
- B66C1/34—Crane hooks
Definitions
- the invention relates to a load carrying device, with a load hook pivotably hinged to the device housing, a connection point for a load rope and with a pawl for the hook mouth, with a device for remote-controlled pivoting of the
- Such a known load carrying device is offered on the market in particular for a helicopter. With this type of use, it is important that the load can be dropped from the load hook if necessary.
- the pawl located in the hook jaw is usually spring-loaded and meets the requirements for a problem-free flight.
- the load rope can hang loosely, displace the pawl lying in the locking position by means of a spring from the outside and thus open the hook mouth, which can result in a critical situation.
- the aim is to create a load carrying device in which this aforementioned disadvantage can be avoided.
- the load carrying device is characterized by a lock which can be moved back and forth in the device housing and which, in its locking position, lies in the path of movement of the pawl which releases the hook jaw, in order to prevent the hook jaw from being released.
- FIG. 1 is a side view, partially broken open, of the lower part of the load carrying device, without a load rope,
- Fig. 2 shows a detail of the device shown in Fig. 1, in an enlarged view and rotated by 90 °, with indicated load rope, and
- Fig. 3 is a same view as that in Fig. 1, with the device housing opened vertically, the pawl has been omitted.
- the load-bearing device has a device housing 1 with the outer contour 2.
- a load hook 3 is pivoted on the housing 1 about the axis 4.
- the load hook 3 is non-rotatably connected to an actuating arm 5, which is thus also pivotable about the axis 4.
- the device has an indicated connection point 6 for a load rope 7. From FIG. 1 it can be seen that there is a pawl 9 in the hook mouth 8, which is pressed in a manner not shown by a spring into the locked position closing the hook mouth 8 according to FIG. 1 w_
- the load hook 3 is in its operating position, in which it can therefore carry a load.
- a device not shown, for remote-controlled pivoting of the load hook 3 into its non-operating position, the hook jaw 8 is thus opened and the load is released by the load hook 3.
- This aforementioned device is known and is not shown. It should only be said that the remote control sends electrical signals to magnets that move a locking rod that removes a locking element that previously acted as a counter-holder in the direction of arrow A on the actuating arm 5. If this counter-holder A is removed, the load hook 3 pivots clockwise and the actuating arm 5 assumes the dot-dash position 5 ". This movement of the actuating arm 5 takes place against the force of a gas spring 11. The load hook then goes out by relaxing this gas spring
- the aforementioned construction of the load-bearing device is already known.
- a toggle bar in the form of a rod 12 is located in the device housing 1.
- This rod is axially displaceable and is in its non-operating position with solid lines in Fig. 1 and in its operating position 12 'with a dash-dotted line.
- the rod 12 is axially loaded by a spring 13 which tends to push the rod 12 to the right into the locking position 12 * (operating position) in FIG. 1.
- This spring 13 is therefore supported at one end on the rod 12 and at the other end via a threaded pin 14 on the housing 1.
- the rod has an annular groove 15 into which a retaining member 16 can be snapped with its spring-loaded projection 17, as shown in FIGS. 1 and 2.
- the retaining member 16 has a support pin 18 located at the bottom and a forked end 19 at the top for the connection point 6 of the load cable 7. Between the support pin 18 and the forked end 19, the retaining member 16 has a cylindrical part 20, which is rotatably mounted in the device housing 1 about the axis 21. For this purpose, two roller bearings 22 and 23 are available. There is an elastic ring 24 below the roller bearing 22, and there is also a spacer ring 25 and a sealing ring 26. The retaining member 16 with connection point 6 is displaceably mounted in the vertical direction, that is in the direction of the axis 21, in relation to the device housing 1 against the force of a second spring 27 (disk spring assembly), the cylindrical part 20 in FIG 2 lifts up from the roller bearing 22.
- a second spring 27 disk spring assembly
- the retaining member 16 is supported on the plate spring assembly 27 via a nut 28 and the roller bearing 23.
- the projection 17, which is designed as a pin and is pressed downward by a spring 29 against a bush 30.
- the support pin 18 is therefore within the second spring 27 (plate spring assembly).
- the device housing 1 can be freely rotated about the axis 21 with respect to the load cable connection point 6 and thus with respect to the retaining element 16 6 resiliently mounted in the longitudinal axis 21.
- a gear 31 is rotatably mounted in the device housing 1, a drive member 32 in the form of a pawl being attached to the gear 31. In one direction of rotation of the gearwheel, it is connected in a rotationally fixed manner to the drive element 32, and in the other direction of rotation a free-wheeling action is effective between the gearwheel 31 and the drive element 32.
- the rod 12 has a rack section 33 shown in FIG. 1 which meshes with the gear wheel 31.
- the actuating arm 5 carries a roller 34 which, in a manner explained later, engages with the drive element 32 when it is in the position 32 '. Located If the actuating arm 5 is in its position 5 ', the roller 34 is in its position 34' according to FIG. 3.
- the load hook 3 In the operating position of the device, the load hook 3 is in the position shown in FIGS. 1 and 3. Since the load rope 7 has not yet been loaded, since there is no load in the load hook 3, the entire device is in the position shown in FIGS Position according to Fig. 1, ie the rod 12 is in its non-operating position (non-locking position), since the projection 17 of the retaining member 16 lies in the annular groove 15, so that the spring 13 cannot push the rod 12 into the position according to FIG. 12 ' .
- the pawl 9 can thus be pivoted upward in FIG. 1, so that the hook mouth 8 is free to hang a load in the hook 3.
- the pawl 9 then returns spring-loaded to the position shown in FIG. 1. If this load hanging on the hook 3 is now lifted off the ground by the helicopter and this load is so great that the disk spring assembly 27 is compressed, the retaining element 16 is moved upwards with projection 17 in FIG. 1 and comes out of engagement the rod 12. Now press the
- the load hanging on the hook 3 (and also not the slack load rope 7) cannot penetrate from outside into the hook mouth 8, so that the load does not come out of the hook 3 can reach.
- the sagging of the helicopter and the free falling of the load with the load-carrying device can be absorbed by the plate spring assembly 27 in a spring-elastic manner, with impacts in the other direction being absorbed by the elastic ring 24.
- the rod 12 is still in its locked position 12 '. It was pressed into this position by the spring 13, the rack section 33 having rotated the gear 31 so that the drive member 32 is in the position 32 *. With this actuation, there was a rotationally fixed connection between gear 31 and drive member 32. If the helicopter now wants to release the load from the load hook 3 by remote control, the load hook 3 in FIGS. 1 and 3 is pivoted clockwise in the manner explained at the beginning, so that the hook jaw 8 and the load are released disengaged from the hook 3. When the hook 3 is pivoted downwards, the actuating arm 5 moves into its position 5 '. In the movement path of the roller 34, the drive member 32 is in its position 32 '.
- the drive member 32 pivots counterclockwise without moving the gear 31 because in this direction of rotation, a freewheel between gear 31 and drive member 32 is effective.
- the roller 34 comes into its position 3 ', and the rod 12 is still in its locking position 12'.
- the gas spring 11 presses the actuating arm 5 and thus also the load hook 3 back into the position shown in full lines in FIG. 3.
- the roller 34 strikes the drive element located in the position 32 'and swivels it into the position shown with solid lines. In this case, there is a non-rotatable connection between the drive member 32 and the gear 31, so that the gear 31 is thereby rotated and the rod 12 is moved into its non-operating position against the force of the spring 13.
- the bar designed as a rod 12 is thus in his
- Non-operating position moves while the load hook 3 is moved into its operating position.
- the projection 17 of the retaining member 16 snaps back into the annular groove 15 according to FIG. 1.
- the load hook 3 is now ready to accept a new load, since the pawl 9 in FIG. 1 can be pivoted upwards so far that the hook jaw 8 is completely free.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Load-Engaging Elements For Cranes (AREA)
- Hooks, Suction Cups, And Attachment By Adhesive Means (AREA)
- Developing Agents For Electrophotography (AREA)
- Escalators And Moving Walkways (AREA)
- Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
- Fats And Perfumes (AREA)
- Carbon And Carbon Compounds (AREA)
- Catching Or Destruction (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH289589 | 1989-08-04 | ||
CH2895/89 | 1989-08-04 | ||
PCT/CH1990/000185 WO1991001934A1 (en) | 1989-08-04 | 1990-08-01 | Load hook device |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0444161A1 true EP0444161A1 (en) | 1991-09-04 |
EP0444161B1 EP0444161B1 (en) | 1994-06-08 |
Family
ID=4244014
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP90910515A Expired - Lifetime EP0444161B1 (en) | 1989-08-04 | 1990-08-01 | Load hook device |
Country Status (8)
Country | Link |
---|---|
US (1) | US5267765A (en) |
EP (1) | EP0444161B1 (en) |
JP (1) | JP2783459B2 (en) |
AT (1) | ATE106849T1 (en) |
CA (1) | CA2038937C (en) |
DE (1) | DE59006055D1 (en) |
DK (1) | DK0444161T3 (en) |
WO (1) | WO1991001934A1 (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19706426C2 (en) * | 1996-10-01 | 2001-04-19 | Klein Hans Juergen | Device for a load hook that can be driven and opened / closed |
US7506907B1 (en) * | 2005-02-03 | 2009-03-24 | Marler Joseph E | Apparatus for the latching and unlatching of a load |
KR101314840B1 (en) | 2011-09-07 | 2013-10-04 | 주식회사 제이케이 | Grapple apparatus for construction heavy equipment |
US10625987B1 (en) | 2019-04-25 | 2020-04-21 | Toyota Motor North America, Inc. | Engine pick end effectors and methods of raising and lowering vehicle engines using engine pick end effectors |
CN112193995B (en) * | 2020-09-25 | 2022-09-30 | 中国直升机设计研究所 | Quick-release rotary lifting hook of helicopter life-saving winch |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2732246A (en) * | 1956-01-24 | Self releasing hook | ||
US1667957A (en) * | 1926-10-06 | 1928-05-01 | D & B Pump And Supply Company | Hoisting hook |
US2116880A (en) * | 1935-08-27 | 1938-05-10 | Harold D Dee | Self locking cable hook |
US2131445A (en) * | 1937-03-02 | 1938-09-27 | Western Union Telegraph Co | Releasing gear |
US2421152A (en) * | 1942-03-10 | 1947-05-27 | Gq Parachute Comp Ltd | Load coupling device for parachutes |
US2422839A (en) * | 1945-08-17 | 1947-06-24 | James J Maskey | Release coupling for parachutes |
US2667376A (en) * | 1950-07-21 | 1954-01-26 | Fred W Schlachter | Parachute quick release coupling |
FR63936E (en) * | 1953-03-16 | 1955-10-14 | Realisations Et D Etudes Nouve | Device for releasing a suspended load |
US3056624A (en) * | 1960-03-07 | 1962-10-02 | Romeo M Nardone | Cargo hook device |
US3224803A (en) * | 1963-05-20 | 1965-12-21 | Aeroquip Corp | Cargo hook |
GB1182603A (en) * | 1966-03-09 | 1970-02-25 | Parsons Chain Company Ltd | Self-Releasing Load Sensing Hook |
US4530535A (en) * | 1983-09-26 | 1985-07-23 | Cranston Machinery Company, Inc. | Cargo hook |
US4539732A (en) * | 1984-01-30 | 1985-09-10 | D B Industries, Inc. | Double locking safety snap |
-
1990
- 1990-08-01 EP EP90910515A patent/EP0444161B1/en not_active Expired - Lifetime
- 1990-08-01 CA CA002038937A patent/CA2038937C/en not_active Expired - Fee Related
- 1990-08-01 DE DE59006055T patent/DE59006055D1/en not_active Expired - Fee Related
- 1990-08-01 WO PCT/CH1990/000185 patent/WO1991001934A1/en active IP Right Grant
- 1990-08-01 JP JP2510241A patent/JP2783459B2/en not_active Expired - Lifetime
- 1990-08-01 AT AT90910515T patent/ATE106849T1/en not_active IP Right Cessation
- 1990-08-01 US US07/656,149 patent/US5267765A/en not_active Expired - Fee Related
- 1990-08-01 DK DK90910515.7T patent/DK0444161T3/en active
Non-Patent Citations (1)
Title |
---|
See references of WO9101934A1 * |
Also Published As
Publication number | Publication date |
---|---|
DK0444161T3 (en) | 1994-10-10 |
DE59006055D1 (en) | 1994-07-14 |
US5267765A (en) | 1993-12-07 |
EP0444161B1 (en) | 1994-06-08 |
JP2783459B2 (en) | 1998-08-06 |
JPH04506333A (en) | 1992-11-05 |
ATE106849T1 (en) | 1994-06-15 |
CA2038937C (en) | 1997-10-14 |
CA2038937A1 (en) | 1991-02-05 |
WO1991001934A1 (en) | 1991-02-21 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE102008033431B4 (en) | Stop element for a safety device | |
DE19649209A1 (en) | Outside door handle assembly for motor vehicles | |
EP0292789A1 (en) | Roof window | |
DE3347725C2 (en) | ||
DE3537177A1 (en) | LOCKING DEVICE FOR A FIRE-SAFE DOOR | |
DE2360343A1 (en) | CARGO HOLDING AND RELEASE DEVICE | |
DE2805639C2 (en) | Device for securing the locking position of vehicle doors operated by rotating pillars | |
EP0444161A1 (en) | Load hook device. | |
AT8702U1 (en) | ACTUATOR WITH AT LEAST ONE STELLARM, ESPECIALLY FOR DRIVEING A FURNITURE FLAP | |
EP3935245B1 (en) | Motor vehicle lock | |
WO1993003247A1 (en) | Manual release for automatic sliding doors | |
DE2743598A1 (en) | SECURITY LOCK FOR VEHICLE DOORS | |
DE3302887A1 (en) | Apparatus for supplying and venting air from rooms and for removing smoke and heat from rooms | |
DE3144133C2 (en) | Smoke and heat extraction device | |
DE10018549B4 (en) | Last stop device | |
EP0362862B1 (en) | Manhole cover | |
DE2523154A1 (en) | Automatic door closer with shaft and solenoid - has spring loaded ratchet for closing shaft and movement damper | |
CH379086A (en) | Transport device for moving loads vertically and moving them along a wire rope | |
DE2631255C3 (en) | Pressure point trigger device | |
CH677085A5 (en) | ||
DE2637200C2 (en) | Device for quickly emptying an aircraft fuel tank | |
DE2133334C2 (en) | Skylight | |
AT230287B (en) | Emptying device on garbage trucks for dust-free emptying of garbage containers | |
DE3241749C2 (en) | ||
DE2610241C3 (en) | Closure for the walls of dump trucks |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 19910322 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE CH DE DK ES FR GB IT LI LU NL SE |
|
17Q | First examination report despatched |
Effective date: 19921103 |
|
ITF | It: translation for a ep patent filed |
Owner name: STUDIO INGG. FISCHETTI & WEBER |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AT BE CH DE DK ES FR GB IT LI LU NL SE |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: NL Effective date: 19940608 Ref country code: ES Free format text: THE PATENT HAS BEEN ANNULLED BY A DECISION OF A NATIONAL AUTHORITY Effective date: 19940608 Ref country code: BE Effective date: 19940608 |
|
REF | Corresponds to: |
Ref document number: 106849 Country of ref document: AT Date of ref document: 19940615 Kind code of ref document: T |
|
REF | Corresponds to: |
Ref document number: 59006055 Country of ref document: DE Date of ref document: 19940714 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: AT Effective date: 19940801 |
|
GBT | Gb: translation of ep patent filed (gb section 77(6)(a)/1977) |
Effective date: 19940712 |
|
ET | Fr: translation filed | ||
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LU Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 19940831 |
|
REG | Reference to a national code |
Ref country code: DK Ref legal event code: T3 |
|
NLV1 | Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act | ||
EAL | Se: european patent in force in sweden |
Ref document number: 90910515.7 |
|
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
26N | No opposition filed | ||
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 19980729 Year of fee payment: 9 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 19980806 Year of fee payment: 9 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: SE Payment date: 19980814 Year of fee payment: 9 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: CH Payment date: 19980819 Year of fee payment: 9 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DK Payment date: 19980827 Year of fee payment: 9 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 19980904 Year of fee payment: 9 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 19990801 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SE Free format text: THE PATENT HAS BEEN ANNULLED BY A DECISION OF A NATIONAL AUTHORITY Effective date: 19990802 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 19990831 Ref country code: DK Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 19990831 Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 19990831 |
|
GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 19990801 |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20000428 |
|
REG | Reference to a national code |
Ref country code: DK Ref legal event code: EBP |
|
EUG | Se: european patent has lapsed |
Ref document number: 90910515.7 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20000601 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED. Effective date: 20050801 |