EP1245521A2 - Neigungsabhängige Fangvorrichtung für einen Zweimastaufzug - Google Patents
Neigungsabhängige Fangvorrichtung für einen Zweimastaufzug Download PDFInfo
- Publication number
- EP1245521A2 EP1245521A2 EP02006497A EP02006497A EP1245521A2 EP 1245521 A2 EP1245521 A2 EP 1245521A2 EP 02006497 A EP02006497 A EP 02006497A EP 02006497 A EP02006497 A EP 02006497A EP 1245521 A2 EP1245521 A2 EP 1245521A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- platform
- safety gear
- gear according
- slide
- inclination
- 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.)
- Withdrawn
Links
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F17/00—Safety devices, e.g. for limiting or indicating lifting force
- B66F17/006—Safety devices, e.g. for limiting or indicating lifting force for working platforms
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F11/00—Lifting devices specially adapted for particular uses not otherwise provided for
- B66F11/04—Lifting devices specially adapted for particular uses not otherwise provided for for movable platforms or cabins, e.g. on vehicles, permitting workmen to place themselves in any desired position for carrying out required operations
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G1/00—Scaffolds primarily resting on the ground
- E04G1/18—Scaffolds primarily resting on the ground adjustable in height
- E04G1/20—Scaffolds comprising upright members and provision for supporting cross-members or platforms at different positions therealong
Definitions
- the invention relates to a safety device for a mast climbing platform or for one Passenger and / or goods lift run on two masts according to the generic term of claim 1.
- Known two-mast elevators or double-mast elevators of the generic type are used to transport loads and / or people.
- Your climbing platform usually has a platform that is spaced apart along two provided masts can be moved by means of at least one drive.
- one drive each on or near each platform end on a slide, which is connected to the platform and with the associated mast in drive engagement stands, such that the platform or the climbing platform along the two Masts can be moved in a largely horizontal position.
- each mast is provided with a rack, into which one on the carriage arranged and driven from there engages gear.
- the two drives are endeavored of the platform to operate synchronously so that the two ends of the platform are always at the same distance from the floor.
- the invention is based on the idea that at least one sled is inclined Allocate safety gear to a predetermined deviation (Inclination) of the longitudinal axis of the platform can be released from the horizontal is such that the translational movement of the carriage and thus the platform is blocked along the mast.
- each of the two slides has a safety gear assigned. This ensures with even greater certainty that that if at any end of the platform there is a deviation from the Horizontal occurs, the desired blocking of the translational movement of the Carriage done.
- the angle of inclination of the platform at which the safety gear can be triggered freely adjustable. It has proven to be advantageous here Design to meet such that the safety gear at an angle of inclination the platform can be triggered by greater than about 4 °.
- the platform for inclination measurement is articulated connected to the respective slide and acts when reached or exceeded the predetermined angle of inclination on an actuator; this then actuates a blocking device for the translational movement of the sled.
- connection between the platform and the carriage takes place via a basic framework.
- This is designed as an inclination measuring frame.
- the base frame is on the platform side on a hinge tube Crossbar mounted so that he in turn in the event of a deviation of the Longitudinal axis of the platform from the horizontal out of a basic position is pivotable.
- the articulated tube is firmly connected to the slide, for example welded.
- the base frame is on the slide side of the actuating element articulated for the carriage blocking device so that in the case of his own Swiveling acts on this actuator.
- the actuating element is a rod which is in a on the carriage attached sleeve is displaceable against spring force.
- the operating rod at one end articulated with the Base frame connected while engaging the other at its other end Blocking device for the translational movement of the carriage and thus the Platform can be brought.
- the carriage blocking device is speed-dependent Catch brake can be.
- This is known per se and usually has centrifugal weights which can be pivoted on a rotatable plate, which can be brought into engagement with blocking wedges, which in turn are on a rotatable Brake pad disc are arranged.
- the actuating rod expediently has a flyweight actuator which for example in wing-like adaptation to the shape or curvature of the centrifugal weights are formed and each so on a flyweight of the blocking device can act that this for engagement with one of the locking wedges is pivotable.
- the safety device according to the invention has a mechanically simple, reliable construction while delivering the essentials Advantage that it automatically functions when the longitudinal axis of the platform with respect to the horizontal exceeds a predetermined angle of inclination.
- the invention thus creates a safety device that not only - how known per se - reacts when the platform is too fast, but also as Incline limiter works.
- the one shown Climbing platform 1 on a platform 2, which is spaced apart along two arranged masts 3, 4 can be moved up and down.
- the platform 2 is made up of individual, rigidly connected segments 5 formed and points at or near their respective ends at the level of the relevant Masts 3 and 4 a drive 6 and 7 respectively.
- Each of these drives 6, 7 is as can be seen in detail from FIGS. 2 and 3, arranged on a carriage 8 which is connected to the platform 2 in a manner to be described in more detail and with the associated mast 3 or 4 is in drive engagement.
- the carriage 8 in a cross-sectional triangular manner, not shown or quadrilaterally formed mast 3 or 4 and reaches over by means of the drive 6 or 7 driven gear 9 in a rack 10, the mast 3 or 4 is attached. In this way, the gear 9 rolls on the rack 10 from, so that the sled 6, 7 together with the platform 2 or the climbing platform 1 can be moved along the masts 3, 4.
- each carriage 8 is a safety catch 11 assigned, which works depending on the inclination, i.e. so at a predetermined Deviation (inclination) of the longitudinal axis of the platform 2 from the horizontal can be triggered in such a way that the translational movement of the slide 8 is blocked along the mast 3 or 4.
- each safety device 11 The inclination-dependent actuation of each safety device 11 is achieved that the platform 2 for inclination measurement articulated with the respective Carriage 8 is connected and when reaching or exceeding the predetermined Angle of inclination - in the present case approx. ⁇ 4 ° - on an actuating element acts in the form of an actuating rod 12, which in turn a blocking device 13 actuated for the translational movement of the carriage 8.
- the platform 2 has a base frame 14. This serves as an inclination measuring frame.
- the base frame 14 is on the platform side on a cross bar designed as an articulated tube 15 mounted so that this cross bar 15 serves as a pivot axis; thus the Base frame 14 in the event of a deviation of the longitudinal axis of the platform 2 from the The horizontal in turn can be swiveled out of a basic position, namely in the direction of arrows 16, 17 either clockwise or clockwise.
- the crossbar 15 (articulated tube) is welded to the slide 8, i.e. so firmly connected to it.
- the actuating element 12 is designed as a rod, which in a sleeve 20 attached to the carriage 8 via a bearing block 18 against the Force of a first compression spring 21 is displaceable.
- the actuating rod 12 is at one end - lower in the drawing connected to the base frame 14 via an articulation bearing 22, in such a way that that with a pivoting movement of the base frame 14 in the clockwise direction or clockwise according to arrows 16, 17 the actuating rod 12 a pure shifting movement up or down in the direction of Arrows 16 ', 17' performs (see Fig. 2, 5 and 7).
- the pivot bearing 22 between the actuating rod 12 and the base frame 14 has a rigidly screwed to the base frame 14 bearing plate 23 with a Driving eye 24, which is provided with a stop at each end Grips sleeve 25.
- This sliding sleeve 25 is in turn on the operating rod 12 arranged and there against the force of a second compression spring 26 slidable.
- the driver 24 In the basic position of the safety device 11 according to FIG. 3, in which the platform 2 and thus also the base frame 14 the desired horizontal position take, the driver 24 is located approximately in the middle of the sliding sleeve 25, under the influence of the second compression spring acting on them 26 assumes an equilibrium position. This applies in the same way to the operating rod 12 under the influence of the first compression spring 21.
- the base frame 14 also pivots about the Pivot axis 15, for example, clockwise in the direction of the arrow 16.
- the bearing plate 23 of the base frame 14 and the driver 24 clockwise in Swiveled in the direction of arrow 16. This causes the driver to "slide up" 24 along the sliding sleeve 25 up to its upper stop, so that thus also the sliding sleeve 25 against the force of the second compression spring 26 is shifted slightly upwards.
- This slide blocking device 13 is in the illustrated embodiment formed as a known speed-dependent safety brake that on a rotatable plate has pivotable flyweights 28. These are in the usual way when the speed of the drive motor 7 or the rack 10 rolling gear 9 - and thus the speed of the Flyweights - reached an impermissibly high level at their respective pivot point 29 under the effect of centrifugal force pivoted out, whereupon they engage with an outside groove 30 in one of several blocking wedges 31, which are arranged on a rotatable brake pad disc 27. hereby any rotation of the aforementioned rotating parts and thus also the Translation movement of the carriage 8 along the mast 3 or 4 prevented, and that dampened over friction linings.
- the actuating rod 12 now has the safety device 11 at its upper end two wing-like actuators 32, 33, which corresponds to the inside of the centrifugal weights 28 Have training and protrude up or down.
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Emergency Lowering Means (AREA)
- Maintenance And Inspection Apparatuses For Elevators (AREA)
- Types And Forms Of Lifts (AREA)
Abstract
Description
- Fig. 1
- schematisch in Vorderansicht eine Zweimast-Kletterbühne;
- Fig. 2
- schematisch die Fangvorrichtung gemäß der Erfindung für die Kletterbühne;
- Fig. 3
- vergrößert im Detail die Fangvorrichtung bei horizontaler Grundstellung der Plattform in Vorderansicht und
- Fig. 4
- in Seitenansicht auf die Schlittenblockiereinrichtung in der Ansicht des Pfeiles x gemäß Fig. 3;
- Fig. 5 und 6
- jeweils eine der Fig. 3 bzw. Fig. 4 entsprechende Darstellung bei einer Neigung der Plattform im Uhrzeigergegensinn um ca. 4° und
- Fig. 7 und 8
- jeweils eine der Fig. 3 bzw. Fig. 4 entsprechende Darstellung bei einer Neigung der Plattform im Uhrzeigersinn um mehr als ca. 4°.
Claims (13)
- Fangvorrichtung für eine Mastkletterbühne bzw. für einen Personenund/oder Lastenaufzug, mit einer Plattform (2), die entlang zweier im Abstand voneinander vorgesehener Masten (3, 4) mittels wenigstens eines Antriebes (6, 7) verfahrbar ist, wobei jeweils ein Antrieb (6 bzw. 7) an oder nahe jedem Plattformende an einem Schlitten (8) angeordnet ist, der mit der Plattform (2) verbunden ist und mit dem zugeordneten Mast (3 bzw. 4) in Antriebseingriff steht,
dadurch gekennzeichnet, daß wenigstens einem Schlitten (8) eine neigungsabhängige Fangvorrichtung (11) zugeordnet ist, die bei einer vorbestimmten Abweichung (Neigung) der Längsachse der Plattform (2) aus der Horizontalen auslösbar ist, derart, daß die Translationsbewegung des Schlittens (8) entlang des Mastes (3 bzw. 4) blockiert ist. - Fangvorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß jedem der beiden Schlitten (8) eine Fangvorrichtung (11) zugeordnet ist.
- Fangvorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß der Neigungswinkel der Plattform (2), bei dem die Fangvorrichtung (11) auslösbar ist, frei wählbar ist.
- Fangvorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß sie bei einem Neigungswinkel der Plattform (2) von größer als etwa 4° auslösbar ist.
- Fangvorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Plattform (2) zur Neigungsmessung gelenkig mit dem jeweiligen Schlitten (8) verbunden ist und bei Erreichen bzw. Überschreiten des vorbestimmten Neigungswinkels auf ein Betätigungselement (12) einwirkt, das seinerseits eine Blockiereinrichtung (13) für die Translationsbewegung des Schlittens (8) betätigt.
- Fangvorrichtung nach Anspruch 5, dadurch gekennzeichnet, daß die Verbindung zwischen Plattform (2) und Schlitten (8) über einen Grundrahmen (14) erfolgt, der als Neigungsmeßrahmen ausgebildet ist und jeweils gelenkig an der Plattform (2) bzw. am Schlitten (8) angreift.
- Fangvorrichtung nach Anspruch 6, dadurch gekennzeichnet, daß der Grundrahmen (14) plattformseitig an einer als Gelenkrohr ausgebildeten Querstange (15) gelagert und bei einer Abweichung der Längsachse der Plattform (2) aus der Horizontalen aus einer Grundstellung heraus verschwenkbar ist.
- Fangvorrichtung nach Anspruch 6 oder 7, dadurch gekennzeichnet, daß der Grundrahmen (14) schlittenseitig an dem Betätigungselement (12) für die Blockiereinrichtung (13) angelenkt ist und im Fall seines eigenen Verschwenkens auf dieses Betätigungselement (12) einwirkt.
- Fangvorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß das Betätigungselement (12) eine Stange ist, die in einer am Schlitten (8) befestigten Hülse (20) gegen Federkraft verschiebbar ist.
- Fangvorrichtung nach Anspruch 9, dadurch gekennzeichnet, daß die Betätigungsstange (12) an ihrem einen Ende über eine Anlenklagerung (22) gelenkig mit dem Grundrahmen (14) verbunden ist.
- Fangvorrichtung nach Anspruch 9 oder 10, dadurch gekennzeichnet, daß die Betätigungsstange (12) an ihrem anderen Ende in Eingriff mit der Blokkiereinrichtung (13) für die Translationsbewegung des Schlittens (8) und damit der Plattform (2) bringbar ist.
- Fangvorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Schlittenblockiereinrichtung (13) eine geschwindigkeitsabhängige Fangbremse ist, die verschwenkbare Fliehgewichte (28) zum Eingriff mit Blockierkeilen (31) einer drehbaren Bremsbelagscheibe (27) aufweist.
- Fangvorrichtung nach Anspruch 12, dadurch gekennzeichnet, daß die Betätigungsstange (12) über jeweils einen Fliehgewichtsbetätiger (32, 33) auf ein Fliehgewicht (28) einwirkt, derart, daß dieses zum Eingriff mit einem der Blockierkeile (31) verschwenkbar ist.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE20105260U DE20105260U1 (de) | 2001-03-26 | 2001-03-26 | Neigungsabhängige Fangvorrichtung für einen Zweimastaufzug |
DE20105260U | 2001-03-26 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1245521A2 true EP1245521A2 (de) | 2002-10-02 |
EP1245521A3 EP1245521A3 (de) | 2004-03-03 |
Family
ID=7954871
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02006497A Withdrawn EP1245521A3 (de) | 2001-03-26 | 2002-03-22 | Neigungsabhängige Fangvorrichtung für einen Zweimastaufzug |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP1245521A3 (de) |
DE (1) | DE20105260U1 (de) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102013109341B4 (de) * | 2013-08-28 | 2021-03-04 | Tractel Greifzug Gmbh | Hebeplattform mit Neigungsüberwachung |
CN112110308B (zh) * | 2020-09-08 | 2021-12-03 | 广西用有机械设备维修有限公司 | 一种施工升降机防坠保险支架 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL8603300A (nl) * | 1986-12-24 | 1988-07-18 | Hek Bouwmachinemij En Maschf B | Hefinrichting voorzien van althans een mast en een langs deze mast op en neer beweegbaar platform. |
EP0879210A1 (de) * | 1996-02-05 | 1998-11-25 | Hek Manufacturing B.V. | Selbsthebende plattform mit zwei masten |
-
2001
- 2001-03-26 DE DE20105260U patent/DE20105260U1/de not_active Expired - Lifetime
-
2002
- 2002-03-22 EP EP02006497A patent/EP1245521A3/de not_active Withdrawn
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL8603300A (nl) * | 1986-12-24 | 1988-07-18 | Hek Bouwmachinemij En Maschf B | Hefinrichting voorzien van althans een mast en een langs deze mast op en neer beweegbaar platform. |
EP0879210A1 (de) * | 1996-02-05 | 1998-11-25 | Hek Manufacturing B.V. | Selbsthebende plattform mit zwei masten |
Also Published As
Publication number | Publication date |
---|---|
EP1245521A3 (de) | 2004-03-03 |
DE20105260U1 (de) | 2001-08-30 |
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