FI93187B - Process for achieving the lifting action of a lifting truck and a lifting truck - Google Patents

Process for achieving the lifting action of a lifting truck and a lifting truck Download PDF

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Publication number
FI93187B
FI93187B FI925217A FI925217A FI93187B FI 93187 B FI93187 B FI 93187B FI 925217 A FI925217 A FI 925217A FI 925217 A FI925217 A FI 925217A FI 93187 B FI93187 B FI 93187B
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FI
Finland
Prior art keywords
lever
load
lifting
trolley
support
Prior art date
Application number
FI925217A
Other languages
Finnish (fi)
Swedish (sv)
Other versions
FI93187C (en
FI925217A0 (en
FI925217A (en
Inventor
Pekka Kossila
Original Assignee
Liftec Products Oy
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 to FI911870A priority Critical patent/FI911870A0/en
Priority to FI911870 priority
Priority to FI912985 priority
Priority to FI912985A priority patent/FI912985A0/en
Priority to FI9200113 priority
Priority to PCT/FI1992/000113 priority patent/WO1992018350A1/en
Application filed by Liftec Products Oy filed Critical Liftec Products Oy
Publication of FI925217A publication Critical patent/FI925217A/en
Priority to FI925217A priority patent/FI93187C/en
Priority to FI925217 priority
Publication of FI925217A0 publication Critical patent/FI925217A0/en
Publication of FI93187B publication Critical patent/FI93187B/en
Application granted granted Critical
Publication of FI93187C publication Critical patent/FI93187C/en

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Description

93187
A method for producing a lifting effect of a lifting transfer carriage and a lifting transfer carriage
The invention relates to a method for producing the lifting effect of a lifting transfer carriage 5, the lifting transfer carriage mainly comprising a body having a substantially horizontal support plane or the like and a lever mechanism comprising: 10 - a first lever body articulated to the body for rotation substantially vertically and engageable 15 - a second lever body articulated to the frame for rotation substantially vertically and provided with at least one rotating member, such as a support wheel, and 20 - at least one force transmitting member acting between the first and second lever bodies relative to the body of said lifting carriage of the first lever body for rotation of the second lever body and thus by the responses of the vertical distance between the support plane of the body 25 and said at least one rotating member particularly in the context of measures relating to the loading of the lift truck.
30
As can be seen from the above, the lifting trolley according to the object of the invention is intended in particular for material handling, whereby a particularly advantageous application of the method according to the invention and the lifting transfer trolley used therein is the so-called self-loading and self-unloading principle used to transfer loads on pallets. However, the invention is not limited to such uses alone, but it is natural that other applications relevant to material handling are also possible.
5 The so-called with regard to the self-loading and self-unloading principle, the state of the art in this field can be illustrated by reference to patent FI-79061. A combination of a hoist transfer carriage and a coupling device is used from this publication, which is used in conjunction with 10 traction machines. In the solution according to said patent, the movement of the frame for raising and lowering the load placed on the base is carried out hydraulically. A forklift operating on this principle is functional, but it has the disadvantage of a complex structure of the forklift 15, which increases maintenance, repair and manufacturing costs. As a device with relatively complex technology, it is also prone to interference, which is likely to increase the risk of damage and thus cause interruptions, for example, in the loading and unloading of ships at port terminals. In order to use the committed capital efficiently, especially in such locations, reliable lifting trolleys are required. From the point of view of use in the hoisting trolley according to the patent, the disadvantage is that the keypad • located inside the towing car of the lifting carriage, which controls the functions of the towing carriage, is in principle detached inside the towing vehicle cab, which in certain practical situations may be difficult for the truck driver to control.
In addition, patent publications CH562,709 and GB-1,500,502 may be cited as prior art publications of the present invention. From these publications, mechanical solutions are known by which the wheeled, load-bearing support plane driven by the tractor can be moved vertically with respect to the wheels. The disadvantage of the solutions according to the mentioned publications is
II
3 93187 the fact that they cannot be moved under or under the load and are therefore not particularly suitable for applications of the self-loading and self-unloading principles. Furthermore, with regard to GB-1,500,502 5 in particular, it should be noted that a vertical force, e.g. the force acting on the first lever arm to move the lever arm, or the removal of its effect always causes a change in the frame and thus the support level and the vertical distance between the wheels. , whether there is a load at the support level or not. In other words, regardless of the load, the vertical movement of the first lever arm always causes, within the limits limited by the responses in the device, a change in the distance 15 between the frame and the wheels, whereby e.g. in the lower position, the frame rests against the ground or a horizontal surface. This feature makes the solution presented in said patent unsuitable for many other applications as well.
The object of the present invention is, as far as possible, to eliminate the above-mentioned drawbacks of the prior art and to provide a reliable method for obtaining the lifting effect of a hoisting trolley comprising versatile applications.
Accordingly, the object of the method according to the invention is in particular to increase the state of the art. In order to achieve these objects, the method according to the invention is mainly characterized in that: - the factors influencing the magnitude of the moments acting at the articulation point between the second lever body and the body are selected so that the transfer carriage acts as a rigid body in at least two positions; the sum of the moments acts in the first direction such that the lever mechanism formed by the lever bodies and said at least one force transmitting member is against the first abutment or the like in the body in the down position, and 5 - change at least one of the moments acting at the articulation point between the second body such that the sum of the moment-10 paths acting at the point of articulation of the second lever body acts in the opposite direction to the first direction; , in the second direction, wherein the lift carriage acts as a rigid body in the second position during the carriage transfer so that the lever mechanism formed by the lever bodies and said at least one force transmitting member is against a second abutment or the like in the upper position.
This solution thus has the advantage that the 20 lifting transfer carriages can be moved with the support plane in the lower position in a rigid body, so that the height position of the first lever frame is freely selectable according to each transfer situation. When it is desired to raise the level of the support carriage 25 to a higher position, especially in the case of load transfer, this can be done by simple measures, which will be explained in more detail below and / or in combination with the loading phase, as is particularly advantageous when using a loading and unloading principle. In this case, it should still be noted that. the lifting trolley also acts as a rigid body in the upper position, whereby the height position of the second lever frame is freely selectable within the functional framework to suit each transfer situation. In particular, the fact that the height position of the support plane can be freely selected between an upper or lower position in certain embodiments of the invention, regardless of the load on the support plane, has the advantage that the lifting trolley can also be applied to other material handling methods in addition to self-loading and self-unloading.
In particular, in order to apply the self-loading and self-unloading principle to an application of the method according to the invention, a lifting trolley is placed for horizontal load transfer under a support device with the support level raised in the lower position and the support level is raised to support the load, in particular - that in order to place the load on the support platform in the first stage, the first lever frame is lifted upwards, the lifting carriage rotating in a rigid body in the first position so that the support platform faces the load and / or the load-related support device supporting the load in the raised position. reversing the direction of action of the moments acting on the articulation point of the second lever body and thus bringing the lifting carriage 25 to another position, and that - said load is positioned relative to the support plane so as to change the position of the common center of gravity of the body and the load relative to the position of the center of gravity of the body 30 of the lifted bulk car. to hold in another position.
The above solution thus achieves an automatic machine operating on the hip and naturally in the unloading space 35, the operation of which is "triggered" by the collision of the load and support plane when rotating the hoisting carriage in the down position.
According to an alternative embodiment of the invention, it is advantageous to change the lever ratios of the first and / or second lever body and / or the position of the center of gravity of the body in order to obtain the first or second position. These solutions can be used, as previously mentioned, separately and / or in combination with the above-mentioned self-loading and self-unloading principle.
The invention also relates to a hoisting trolley, the main characteristic features of which appear from the characterizing part of the appended independent claim for a hoisting trolley. The appended dependent claims for a hoisting trolley show some of its advantageous applications.
A preferred embodiment of the invention is further illustrated in the following description with reference to the accompanying drawings. In the drawings 25 *, Fig. 1 shows a free view of a lever mechanism of a hoisting trolley used in the method according to the invention, Figs. 2a, 2b show a side view of Fig. 1. Fig. 3 shows the application of the self-loading and self-unloading principle in stages using the method according to the invention and a hoisting trolley equipped with a lever mechanism with the lever mechanism shown in Figs. 1 and 2a, 2b in the case of a towing machine such as a forklift. and Figs. 4 to 6 schematically show some alternative application examples of a lifting trolley according to the invention, in particular with regard to the construction of a lever mechanism; Fig. 7 shows stepwise (a-1) the use of a method and a trolley according to the invention in a side stand, Figure 8 is a schematic side view of the operation of a spring-loaded response used in a hoisting trolley according to the invention in different position-20 areas of a hoisting trolley.
The following illustrates, with reference to Figures 1, 2a and 2b, the theoretical basis of the method according to the invention, in particular for determining the factors affecting the magnitude of the moments acting at the point of articulation between the second lever body and the body 25.
The equilibrium condition of the lever mechanism based on the notations in Figure 1 is 30 T2 = T2, (1) still the torque equilibrium condition around the point P 35 Fl’bl
Fi - bi - Ti · b2 = 0 => Ti = - (2) b2 8 931 87 and the moment equilibrium condition around the point Q f2 'a2 5 f2 * a2 “T2' al = 0 => T2 = - / (3) al kun (2) and (3) are placed in (l) as follows: 10 F1 'bl f2 a2 - = - (4) b2 ax 15
If T, <T2, point K rotates counterclockwise with respect to point P and point S rotates clockwise with respect to point Q.
20
If T,> T2, point K rotates clockwise with respect to point P and point S rotates counterclockwise with respect to point Q.
25 Further, using the notations in Figure 2a, the equilibrium condition is G0 "F01 ~ f02 = 0 => Fqi = G0 - ^ 02 · (5) where the torque equilibrium condition around the point K is. · 30 G0 '^ -0 f02' L“ G0 'lo = 0 -> f02 “- · (6)
L
35 when combining (5) and (6) follows: 40 G0 * lo F01 = G0 “- (7)
L
5,993,187
When Foi ”F1 3a F02 - F2 is valid without load, then (6) and (7) can be placed in formula (4), whereupon 3-0 bl 3-0 'a2 (1--) · - = - (8) L b2 L '10 Thus, Equation 9 shows the factors whose effect
the operation according to the invention without load results in such a way that the lever body N of the rotating member
rotates counterclockwise around the point P against the stop, whereby the lever body N and thus the support plane 15 is in the lowest position at the rotating member relative to the base.
20 1q & i 10 'a2 (1--) · - <- (9) L b2 L a ^ _ 25 Using the notations and formula (8) in Figure 2b, the following: 3-tot bl ^ -tot' a2 30 (1-- ) · - = - (10). L b2 L a ^ i i
It is further noted that
Gtot = G + G0 (11) a and 40 (G0 ‘10 + G · 1)
Itot - - <12) 'Gtot 45 10 93187
Thus, formula (13), combined from formulas (10) to (12), shows the factors which cause the operation according to the invention to be loaded so that the lever body of the rotating member rotates clockwise around the point P against the stop R 2 and the lever body N settles in the highest position relative to the ground at the rotating member.
10 (G0 'lo + G'!) Bl (G0 'io + G * 1) * a2 (1--) -> - (13) L' Gtot b2 L 'Gtot al 15 The operation of the lifting wagon therefore requires that the selected factors placed in formulas (9) and (13), perform the equations simultaneously. At the end of the explanation is a list of the entries used.
The lifting transfer carriage according to the invention, with particular reference to Figures 2a and 2b, has a body u, to one end of which a first lever body M is attached by a horizontal joint Q. As can be seen from Figures 2a, 2b and 3, the first lever body M is shaped as a downwardly directed U-shape. with the lifting trolley in its first position according to Figure 2a. The first lever body M is • shaped as a drawbar for its first arm part VI, at its end having a fastening device such as an articulated sleeve part H for coupling the fork part of the forklift truck TR, which performs a vertical movement, to the lifting transfer carriage. In the embodiment according to Figures 2a, 2b and 3, the second arm part V2 of the first lever body M is connected to the articulation Q in the central part and the force transmitting member VE is connected to the end of the second arm part V2, which in the embodiment is a longitudinal rod and N1. The articulation point N1 is formed between the force-transmitting member VE and the second lever body N. The second t1 93187 11 lever body N is in turn articulated to the lug connected to the body part RO downwards from the support plane KT of the body u by articulation P. In connection with the second lever body N, at least one rotating member PE is additionally mounted by bearings. The part R1 in the downwardly directed body part RO acts as a first response when the application of the hoisting trolley according to Figures 2a, 2b and 3 is in its first position, i.e. in its lower position (response R1). The second lever body N is triangular in shape, said joints N1, P and K being arranged at the corners of the triangular shape.
Further, a second response R2 formed by the lug extending downwards from the support plane KT of the frame u 15 is formed in the frame for the second position, i.e. the upper position, of the illustrated embodiment of the lifting transfer carriage.
In particular, Figure 3 shows the use of the application of the hoisting trolley according to Figures 2a and 2b step by step in the application of the self-loading and self-unloading principle. Figure 3a shows the transfer stage of the lifting transfer trolley from the platform under the load KK lifted by the support device TL. When the fork TR is rotated upwards (around the bearing point K) upwards as shown in Fig. 3b, the unloaded lifting trolley in its first position counterclockwise, the support plane KT facing the load KK and / or the support device TL, moving the trolley to the second position as explained above. Further extending the rotation of the lifting trolley as a rigid body in its second position to the position shown in Fig. 3d, the support plane KT is made horizontal, whereby the truck TR can carry the combination of the load 35 KK and the support device TL.
Figures 3e-3g show the corresponding measures in connection with the unloading of the load KK and the support device TL from the support of the lifting transfer carriage 951 87 12. These steps are substantially the opposite of what has been explained above.
Fig. 4 shows an embodiment of a hoist transfer carriage, in which a relief spring KJ is placed in a hoist transfer carriage similar to that previously shown, which is positioned so that its force action promotes the transfer carriage from the second position to the first position 10 shown in Fig. 4. Such a relief spring KJ can be placed at one or more points in the construction. In the embodiment shown in Fig. 4, it is placed between the articulations Q and H1 of the second arm part of the body u and the first lever body M.
15
Fig. 5, on the other hand, shows an embodiment in which the positions of the articulations M1 and Q are also changed in the direction of rotation of the second lever body N. For this purpose, a downwardly directed lug is formed in the front part of the body U in which said articulation Q is formed.
Figure 6, in turn, shows a pressure medium-driven application of the force transmitting member VE. For this purpose, pressure medium-operated cylinder-piston assemblies SM1 and SM2 are fixed to the fixed, downwardly directed lugs in the body u and to the lever bodies M and N, respectively, in which a closed circulation of the pressure medium is arranged so that the first cylinder-piston assembly cylinder-piston joint st e lmä SM2 in its maximum length. In this way, the operation according to Figures 2a and 2b is achieved.
35
Some applications of the bulk carrier according to the invention have been described above, but it will be clear to a person skilled in the art from the above that several other applications are possible, such as the center shift mechanism PS shown in Fig. 4, with which the center of gravity u can be moved 5 from the first position according to Fig. 4 to the second position also unloaded. The center of gravity transfer mechanism may comprise a movable mass unit MY in the longitudinal groove UR of the body u or the like, the displacement of which in said groove UR to the right in Fig. 4 makes it possible to move the trolley to another position.
It is further clear that with reference to formulas (9) and (13) it is also possible to change the lever ratios and ^ 1 / ^ 2 ·
The simplest way to do this is probably to change the lever ratio a2, whereby the first arm part VI of the u-shaped first lever body M can be made telescopic, for example.
With particular reference to Figure 7, the method according to the invention can also be applied to a two-stage lifting. In the first step, illustrated in Fig. 7a, a lifting carriage of a working machine, such as the truck TR as shown, is connected to its first lever frame M. The lifting carriage in its lowered position is then moved below the auxiliary platform 1 with the support of the truck. The auxiliary stand 1 comprises a support level 1a and an associated support time Ib. The placement of the carriage of your lift takes place in particular below the support level 1a of the auxiliary base 1 between the support arrangement Ib. In this case, according to Fig. 7c, the fork part of the truck TR is lifted upwards, whereby the lifting effect is also on the first lever frame M and the support level KT in the hoisting carriage body u rises as described above, whereby in the situation shown in Fig. 7e on when it is in the first elevated position range. The support-foot arrangement Ib is detached from the base. In this case, according to Fig. 7f, the hoisting trolley and the auxiliary stand 1 on the support plane of its frame u can be moved together under the support devices in the operating position, such as the stand 5 on its standing legs TL, such as the swap body KK. The placement preferably takes place between the legs TL of the exchange basket KK in the longitudinal direction of the exchange basket. We then proceed to the situation according to Figs. The 15 swap bodies KK are on the lift truck with another lift to enter the position range. In this case, the standing legs TL of the replacement basket KK are detached from the base. The replacement basket KK is then essentially via the auxiliary base 1 with the support of the lifting transfer carriage. According to Fig. 7i, the standing legs TL of the replacement basket 20 are placed in a non-functional position, e.g. parallel to the bottom of the replacement basket KK. There are normally four standing legs TL, two placed on each longitudinal side of the swap body KK in the corners. I-25 women in moving the standing legs to the non-functional position is that they are above the lower edge of the support-stand arrangement 1a of the auxiliary stand 1. Then, according to Fig. 7j, the combination 1, KK can be moved to e.g. downwards, whereby the auxiliary base 1 and the replacement basket KK 35 on it rest on the support and the arrangement TL arrangement against the base when the lifting trolley reaches its lower position. The further steps of the operations will be clear to a person skilled in the art from the above.
Il; 93187 15 In this case, for example, the situation according to Fig. 7b corresponds to a situation in which the functions would be continued after the working step of Fig. 71, in which case 7d-e is naturally carried out with the replacement basket KK on the sub-base 1 5 and then 7i in reverse order, i.e. the legs TL are moved to a functional, vertical position. to the position and lowering the frame of the hoisting trolley as shown in Fig. 7k to the first raised position area and moving the combination of the hoisting trolley and the auxiliary base 10 thereon away from under the replacement basket KK placed on its standing legs TL.
Fig. 8 shows, with particular reference to the preferred embodiment 15 according to Fig. 7, the structure and operation of the spring-loaded response in the different phases of the operations according to Fig. 7. In principle, the lifting trolley comprises means for adjusting the height position of the upper position of the body u to two or more positions. In connection with the second lever body N and / or the second abutment R2, a compression spring PJ or a similar member is arranged acting as said member, the spring constant of which is dimensioned and / or adjustable by adjusting means (not shown to a person skilled in the art) to depend on the load situation 7 . Fig. 8a shows a situation in which the lifting trolley is in the lower position range, whereby the second lever body N is located against the first stop R1. When moving to the first raised position range 30, the situation is as shown in Fig. 8b (cf. Figs. 7e and 7f). Further, Fig. 8c shows the situation according to the second raised position area (cf. Figs. 7i and 7j). A compression spring PJ is placed between the second lever body N and the second stop R2 of the 35 and fixed to the second stop R2 so that the second lever body N encounters and applies a compression stress to said compression spring PJ during rotation, thereby compressing the compression spring PJ, in the equilibrium situation, where the force exerted by the compression spring PJ on the second lever body N is large enough to stop the rotation of the lever body 5, the support plane of the lift carriage body and the auxiliary support thereon in the first raised position range. From the situation according to Fig. 7b, in which the replacement basket KK is placed on the auxiliary base 1, the rotation of the second lever body N continues with the increase of the load promoting the rotation of the lever body 10 as the replacement basket is placed on the auxiliary base.
Explanations of the symbols used: 15 = support reaction force exerted by the force transmitting member (VE) on the second lever body (N), 20 T2 = support reaction force applied by the force transmitting member (VE) to the first lever body (M),
Fi, F01 = vertical support reaction force 25 between the rotating member (PE) and the chassis, F2, f02 = vertical support reaction force on the first lever frame, 30 G0 = weight of the lifting trolley, G = weight of the load KK,
Gtot = Go + G »35 L = horizontal straight distance between forces F1, F0i and F2, F02, 93187 17 10 = center of gravity and force of lift truck
Fi, horizontal distance between the point of application of F01, 5 1 = horizontal distance between the common center of gravity of the load and the lifting wagon and the point of application of the force Fj_, Fqi, a! = shortest distance between the force transmitting member and the first 10 body and the articulation points between the body and the first body, a2 = the shortest distance between the force F2, F02 and the point of articulation between the body 15 and the first body, bi = the body and the second body 20 is the shortest distance between the line of action of the effective force Flf Fq, b2 = the shortest distance i between the body and the second lever body and the articulation points between the force transmitting member and the second lever body 25.
m

Claims (14)

    18 93187
  1. A method for producing a lifting effect of a lifting transfer carriage, the lifting transfer carriage comprising mainly a body (u) having a substantially horizontal support plane (KT) or the like and a lever mechanism comprising: - a vertical movement articulated to the body (u) in a substantially vertical manner; or a corresponding first lever body (M) to be connected, a second lever body (N) articulated to rotate relative to the body (u) substantially vertically relative thereto and provided with at least one rotary member such as a support wheel, and - said first (M) and second (N) lever bodies an effective at least one force transmitting member (VE) for transmitting a vertical rotation 20 relative to said first carriage body (M) relative to said hoist carriage body (u) for rotation of the second lever body (N) and thus a support plane (KT) of the body (u) and said at least one rotating member (PE) ) for a limited change of the vertical distance by the stops (R1, R2), in particular in connection with the loading of the transfer trolley, characterized by selecting the factors (α 1) acting on the magnitude of the moments 30 acting at the articulation point (P) between the second lever body (N) and the body (u); a2; blf b2; lo »L; G, G0) such that the transfer carriage acts as a rigid body during transfers of the transfer carriage in at least two positions, the sum of the moments acting at said articulated point (P) in the first position acting in the first direction so that the lever bodies (M, N) and said at least one the lever mechanism formed by the force transmitting member (VE) is against the first stop (R1) or the like in the body (u) with the support plane (KT) in the down position, and - changing at least one between the second lever body (N) and the body 5 (u); a factor affecting the magnitude of the moments acting at the articulation point (P) (a1 # a2; b1 # b2, 1 <j »L; G, G0) such that the sum of the moments acting at the articulation point (P) of the second lever body (N) acts opposite to the first direction 10 , in the other direction, in which the lifting trolley acts as a rigid body in the second position during the movements of the lifting trolley so that v the lever mechanism 15 formed by the housing bodies (M, N) and said at least one force transmitting member (VE) is against a second stop (R2) or the like in the body when the support plane (KT) is in the upper position.
  2. A method according to claim 1, in particular for applying the self-loading and self-unloading principle, wherein the lifting trolley is placed for the purpose of transferring a load (KK) below a horizontal load (KK) under a support device (TL) with the support level (KT) in the lower position and the support level (25). KT) is lifted to support the support plane (KT), in particular for load transfer purposes, characterized in that in order to bring the load to the support plane (KT) in the first step, the first lever body (M) is raised, the lifting carriage rotating rigidly in the first position, that the support plane encounters a load (KK) and / or a load-related support device (TL) with which the load is supported in an elevated position and which applies a force which changes the direction of the sum of the moments acting on the articulation point of the second lever body (N) 20 931 87 and thus - placing said load (KK) with respect to the support plane (KT) so as to change the position of the common center of gravity of the body (u) and load 5 (KK) relative to the position of the center of gravity of the body (u) to hold the hoist position.
  3. Method 10 according to Claims 1 or 2, characterized in that the lever ratios of the first (M) and / or second (N) lever body and / or the position of the center of gravity of the body (u) are changed in order to obtain the first or second position.
  4. Method according to one of Claims 1 to 3, characterized in that the factors (alf a2; b1, b2; 1q, L; G, Gq) are chosen such that the hoisting trolley, unladen, satisfies the inequality 20 1q b ^ <1q 'a2 (1 -) · - -, L b2 L a ^ where in the first position the sign (<) and in the second 25 position the sign (>) is valid.
  5. Method according to one of Claims 1 to 3, characterized in that the factors (alf a2; bj_, b2; 1 q, L; G, G0) are chosen so that the lift of the bulk trailer 30 under load satisfies the inequality (G0 · 1q + G · 1) b ^ (GqIq + G · 1) a2 (1--) · -> - L Gtot b2 L 'Gtot' al 35
  6. A lifting trolley comprising mainly a body (u) having a substantially horizontal support plane (KT) or the like, and a lever mechanism comprising ti. 93187 21 - a first lever body (M) articulated to a body (u) rotatably rotatable relative thereto with a vertical movement means or the like, 5. provided with a second lever body (N), and - for transmitting a vertical rotation relative to said body (u) of the first transfer body (M) of at least one force transmitting member (VE) acting between said first (N) and second (N) lever bodies 10, the second lever body (N) for rotational movement and thus for a limited change of the vertical distance between the support plane (KT) of the body 15 and said at least one rotating member (PE) by stops (R1, R2), in particular in connection with loading trolley loading operations, characterized in that the trolley is provided with a member t to cause it to operate during the movements of the bulk carrier in at least two positions and / or to be arranged in connection with said member 25 providing at least two positions so that the lever mechanism and / or part thereof is against the first stop (R1) in the body in the first position, the body (u) is in the lower position with the support of the rotating member (PE) and so that the lever mechanism and / or part thereof is against the second stop (R2) in the body in the second position, the body (u) being in the upper position with the support of the rotating member (PE), and that in both positions the lifting trolley forms a functionally rigid body which is rotatable around the bearing point between the rotating member (PE) 35 and the second lever body (N) when changing the height position of the first lever body (M). 22 93187
  7. Lifting trolley according to claim 6, characterized in that said member is a load (KK) placed on a support plane.
  8. Lifting trolley according to claim 6, characterized in that said member is a mass unit (MY) displaceable in the longitudinal direction of the body (u).
  9. Lifting trolley 10 according to Claim 6, characterized in that the element is at least one articulation point (Q, M1, N1, P, K) of the lever mechanism, which is arranged to be displaceable relative to the lever mechanism.
  10. Lifting trolley according to claim 6, characterized in that said stops (R1, R2) are arranged in connection with lugs or the like extending below the body (u), preferably both in functional connection with the second lever body (N). 20
  11. Lifting trolley according to Claim 6, characterized in that the force-transmitting element (VE) is at least one rod and / or a cable and / or a pressurized drive. 25
  12. Lift transfer trolley according to claim 6, characterized in that the lift transfer trolley comprises means (PJ) for adjusting the height position of the upper position of the frame to two or more positions.
  13. Lifting trolley according to claim 6, characterized in that means (PJ) 35 are arranged in connection with the second lever frame (N) and / or the second stop (R2) to limit the upper position of the frame (u) according to the weight of the load on the lifting trolley. restricting the upper position of the body (u) to the first upper position region II; 93187 23 with the auxiliary base (4) or the first load placed on the support of the hoisting trolley and that said members (PJ) preferably limit with the second abutment (R2) the upper position of the frame to a second upper position 5 higher than the first upper position. with a swap body or the like, or alternatively when the first load is exceeded. 10
  14. Lifting trolley according to any one of claims 6, 12 or 13, characterized in that said member (PJ) is a compression spring 15 or a similar member interposed between the second lever body (N) and the second stop (R2), the spring constant of which is dimensioned and / or adjustable by adjusting means to provide an upper position area depending on the load situation of at least two lifting trolleys, in particular when the auxiliary base (4) or both the auxiliary base and the load 20 on it are placed on the support trolley support or when the load corresponding to the first upper position area is exceeded. a 4 24 93187
FI925217A 1991-04-18 1992-11-18 A method for producing a lifting effect of a lifting transfer carriage and a lifting transfer carriage FI93187C (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
FI911870A FI911870A0 (en) 1991-04-18 1991-04-18 Foerfarande foer att aostadkomma lyftverkan i en lyfttransportvagn och en lyfttransportvagn.
FI911870 1991-04-18
FI912985 1991-06-19
FI912985A FI912985A0 (en) 1991-06-19 1991-06-19 Foerfarande vid behandling av med staondben foersedda vaexelkorgar, hjaelpunderlag och lyfttransportvagn.
FI9200113 1992-04-16
PCT/FI1992/000113 WO1992018350A1 (en) 1991-04-18 1992-04-16 Method for providing the lifting effect of lifting transport trailer and lifting transport trailer
FI925217A FI93187C (en) 1991-04-18 1992-11-18 A method for producing a lifting effect of a lifting transfer carriage and a lifting transfer carriage
FI925217 1992-11-18

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI925217A FI93187C (en) 1991-04-18 1992-11-18 A method for producing a lifting effect of a lifting transfer carriage and a lifting transfer carriage

Publications (4)

Publication Number Publication Date
FI925217A0 FI925217A0 (en) 1992-11-18
FI925217A FI925217A (en) 1992-11-18
FI93187B true FI93187B (en) 1994-11-30
FI93187C FI93187C (en) 1995-03-10

Family

ID=27241460

Family Applications (1)

Application Number Title Priority Date Filing Date
FI925217A FI93187C (en) 1991-04-18 1992-11-18 A method for producing a lifting effect of a lifting transfer carriage and a lifting transfer carriage

Country Status (1)

Country Link
FI (1) FI93187C (en)

Also Published As

Publication number Publication date
FI925217A (en) 1992-11-18
FI925217D0 (en)
FI925217A0 (en) 1992-11-18
FI93187C (en) 1995-03-10

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