EP0825147B1 - Sicherheitskurbel - Google Patents
Sicherheitskurbel Download PDFInfo
- Publication number
- EP0825147B1 EP0825147B1 EP97112004A EP97112004A EP0825147B1 EP 0825147 B1 EP0825147 B1 EP 0825147B1 EP 97112004 A EP97112004 A EP 97112004A EP 97112004 A EP97112004 A EP 97112004A EP 0825147 B1 EP0825147 B1 EP 0825147B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- hub
- housing
- cam disc
- rolling body
- housing wall
- 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 - Lifetime
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
- B66D1/02—Driving gear
- B66D1/04—Driving gear manually operated
- B66D1/06—Safety cranks for preventing unwanted crank rotation and subsequent lowering of the loads
Definitions
- the present invention relates to a safety crank according to the preamble of Claim 1.
- a safety crank is known from FR-A-1 091 122.
- the braking device is also disengaged constructional frictional forces between the housing wall and the brake shoes, which make it difficult to operate this safety crank.
- the present invention is therefore based on the object of a safety crank of the generic type to be designed so that they are both less expensive to manufacture is operable, as well as better usability.
- the rolling element which is preferably designed as a pressure roller, leads for the case an unintentional sudden drop in load in conjunction with that in the Contact area designed as a cam disc for immediate jamming, practically no unrestrained return, not even a short one Route is done.
- the braking effect occurs compared to the known safety cranks thus much more likely.
- the rolling element is held in an optimal position with regard to its effect, so that the clamping and thus a If necessary, the hub is braked immediately.
- the rolling elements Side are embedded in the hub, for example, sliding rollers, the can freely rotate in the hub and are supported on the housing wall.
- the casters of which preferably three are provided, arranged at the same angular distance from each other, so that each according to the direction of rotation of the drive part, always two rollers together with one Rolling elements are loaded accordingly.
- a safety crank is shown, which is a cylindrical Has housing 1, which can be fixed by a molded tab 2 on site.
- a hub 5 is mounted, which has a bore 13 into which one output shaft, not shown, can be inserted in a form-fitting manner.
- crank arm 3 On the hub 5, a drive part is guided in the form of a crank arm 3, in which a Driver 4 is attached, which projects into the interior of the housing 1. Using a locking ring 12, the crank arm 3 is secured on the hub 5.
- This area of contact of the hub 5 with the pressure rollers 7, 7a is mirror-symmetrical formed as a cam 6, the smallest distance to the wall of the Housing 1 smaller and their greatest distance equal or slightly larger than that Diameter of the pressure rollers is 7.7a.
- Each of these pressure rollers 7, 7 a is connected to the cam disc 6 by means of a compression spring 8 pressed, each compression spring 8 in a receptacle 9 provided in the hub 5 lies and is supported there on the face.
- one or more of a suitable one can also be used Material with low friction coefficient existing sliders provided be in the hub 5 and rest on the wall of the housing 1 and in If the brakes are applied, support the hub 5.
- three casters 10 are provided, which are the same Angle distance, preferably at an angle of 60 ° to each other.
- the safety crank in the example shown is for a right as well suitable for left-hand operation.
- the crank arm 3 is actuated connected driver 4, depending on the direction of rotation, either against the pressure roller 7 or pressed against the pressure roller 7a, the associated compression spring 8 in the receptacle 9 is pressed so that the pressure roller 7,7a abuts on the hub and this and with it the inserted output shaft rotates.
- crank arm 3 is opposed rotated, the driver indirectly, as in the present embodiment, or rests directly on the hub.
- the driver is located when the crank arm 3 is actuated 4 directly on the hub while the pressure roller 7 or 7a on the other side of the driver 4 is pressed.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
- Auxiliary Drives, Propulsion Controls, And Safety Devices (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Description
- Figur 1
- einen Teilquerschnitt durch eine erfindungsgemäße Sicherheitskurbel,
- Figur 2
- eine Draufsicht auf einen Teil der Sicherheitskurbel.
- 1
- Gehäuse
- 2
- Lasche
- 3
- Kurbelarm
- 4
- Mitnehmer
- 5
- Nabe
- 6
- Kurvenscheibe
- 7
- Druckrolle
- 7a
- Druckrolle
- 8
- Druckfeder
- 9
- Aufnahme
- 10
- Gleitrolle
- 11
- Buchse
- 12
- Sicherungsring
- 13
- Bohrung
- 14
- Ausnehmung
Claims (1)
- Sicherheitskurbel mit einem bauseitig verdrehsicher festlegbaren Gehäuse (1) und einer darin angeordneten, mit einer Abtriebswelle verbundenen und einem Antriebsteil über einen Mitnehmer (4) in Wirkverbindung stehenden Nabe (5), die mittels einer Bremseinrichtung gegenüber dem Gehäuse (1) festsetzbar ist, wobei zwischen der Nabe (5) und der Gehäusewandung mindestens ein Wälzkörper vorgesehen ist, an dem sich der Mitnehmer (4) bei Betätigung des Antriebsteiles abstützt, wobei die Nabe (5) im Berührungsbereich mit dem jeweiligen Walzkörper als Kurvenscheibe (6) ausgebildet ist und wobei der geringste Abstand der Kurvenscheibe (6) zur Gehäusewandung kleiner und ihr größter Abstand gleich oder geringfügig größer als der Durchmesser des Wälzkörpers ist, dadurch gekennzeichnet, daß jeder Wälzkörper federbelastet an der Kurvenscheibe (6) anliegt und daß in der Nabe (5) Gleitstücke (10) angeordnet sind, die an der Wandung des Gehäuses anliegen.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19633432 | 1996-08-20 | ||
DE19633432A DE19633432A1 (de) | 1996-08-20 | 1996-08-20 | Sicherheitskurbel |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0825147A2 EP0825147A2 (de) | 1998-02-25 |
EP0825147A3 EP0825147A3 (de) | 1998-12-02 |
EP0825147B1 true EP0825147B1 (de) | 2002-08-28 |
Family
ID=7803048
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP97112004A Expired - Lifetime EP0825147B1 (de) | 1996-08-20 | 1997-07-15 | Sicherheitskurbel |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP0825147B1 (de) |
AT (1) | ATE222881T1 (de) |
CZ (1) | CZ289708B6 (de) |
DE (2) | DE19633432A1 (de) |
PL (1) | PL183322B1 (de) |
SK (1) | SK283445B6 (de) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CZ306859B6 (cs) * | 2008-03-25 | 2017-08-16 | Sicon S.R.O. | Stavební prvek pro spojování nosných a nesených stavebních konstrukcí |
PL234340B1 (pl) * | 2018-03-08 | 2020-02-28 | Inst Techniki Gorniczej Komag | Hamulec mechaniczny z możliwością dwukierunkowego ruchu wyjściowego wału napędowego |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE162122C (de) * | ||||
FR1091122A (fr) * | 1954-01-04 | 1955-04-07 | Fixator Ets | Dispositif de sécurité pour treuil |
DE1794912U (de) * | 1959-05-27 | 1959-09-03 | Thun Alfred & Co Gmbh | Sperrklinkenlose sicherheitskrubel fuer hebezeuge u. dgl. |
DE29500936U1 (de) * | 1995-01-21 | 1995-03-02 | Hase, Geb. Schwager, Anke, 22880 Wedel | Gesperre |
-
1996
- 1996-08-20 DE DE19633432A patent/DE19633432A1/de not_active Ceased
-
1997
- 1997-07-15 DE DE59708048T patent/DE59708048D1/de not_active Expired - Lifetime
- 1997-07-15 EP EP97112004A patent/EP0825147B1/de not_active Expired - Lifetime
- 1997-07-15 AT AT97112004T patent/ATE222881T1/de active
- 1997-07-30 PL PL97321401A patent/PL183322B1/pl unknown
- 1997-08-07 SK SK1070-97A patent/SK283445B6/sk not_active IP Right Cessation
- 1997-08-12 CZ CZ19972565A patent/CZ289708B6/cs not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
DE19633432A1 (de) | 1998-02-26 |
EP0825147A2 (de) | 1998-02-25 |
CZ256597A3 (cs) | 1998-03-18 |
EP0825147A3 (de) | 1998-12-02 |
ATE222881T1 (de) | 2002-09-15 |
PL321401A1 (en) | 1998-03-02 |
CZ289708B6 (cs) | 2002-03-13 |
PL183322B1 (pl) | 2002-06-28 |
DE59708048D1 (de) | 2002-10-02 |
SK107097A3 (en) | 1998-03-04 |
SK283445B6 (sk) | 2003-07-01 |
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