JPH0251840B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides an actuating means consisting of a series of pulling ropes (a pulley rope and a rope section of constant length, a pulley rope and a rope section of constant length, and A first telescope having a locking member for fixing its position and a pulley rope guided in several layers via rollers at the upper end of the first telescope body and at the beginning of the second telescope body. The present invention relates to a telescoping jib, in particular for inclined lifts, with a pulley arrangement formed between a body and a second telescoping body.

Telescoping jibs, particularly for tilt lifts, are used in construction operations to transfer material to a relatively elevated site of use. Generally, this tilt lift is not used for transporting personnel. One or more power winches move the rope, which performs the function of the tilt lift.

A telescoping jib is known from the applicant, in particular for inclined lifts, in which the transfer slider is transferred into a bending position at the end of the telescoping jib (German Patent Publication no.
No. 27087963). However, in this case the last telescope body does not form the bending position and the transport slide is moved into the bending position.

Furthermore, a telescoping jib of the type defined in the preamble of claim 1, in particular for inclined lifts, is disclosed in German Patent Publication no.
It is known from No. 300141092. In this case, the operating means for the locking member provided between the first telescope body and the second telescope body can itself be operated from a fixed point via a swingable member operated by a lock cam or the like. In this case, this swingable member serves to guide one or more shortening ropes.

The swingable member with the locking member associated therewith can be provided up to the penultimate telescoping body and the second telescoping body or the following telescoping body. .

Although these known configurations are recognized to be effective in principle, they simplify and reduce the cost of work equipment, and also reduce the burden on workers, who previously had to operate multiple winches in the same way. In order to reduce the work, a series of rationalizations and efforts have been made to make the tilt lift itself as simple as possible and to be able to perform as many functions as possible via a single rope.

In this regard, the present invention aims at technological advancement.

In the case of a telescoping jib according to the invention as claimed in the claims, especially for tilt lifts, the last telescope can first be moved with only one rope and with only one power winch provided for this rope. All the telescope bodies except the scope body can be freely extended and locked at any desired position, and the last telescope body can be continuously extended and moved to any angular position. The challenge is to configure it.

This task is achieved according to the invention by: a. The pulley rope is passed from the second telescope body to the outer end of the penultimate telescope body via a deflection roller provided there and then to the beginning of the last telescope body. (b) a rope section of constant length in addition to the pulley rope extends from the first telescoping body to the outer end of the second telescoping body; to the beginning of the third telescope, and further to the beginning of the penultimate telescope, c. A locking device is provided in between which automatically snaps the telescope at a predetermined extension length, and this locking device prevents the last telescope from entering into the penultimate telescope. d the penultimate telescoping body is provided at its outer end with a guide part arranged in a link-like manner via an axis, while the last telescoping body is provided with a corresponding guide part; a link part at its inner starting end, e approximately in the plane of the upper guide part and in the dividing plane with respect to the guide part at the position where the shaft of the penultimate telescope body is fixed by the locking device; This is solved by having the following.

The advantages obtained by the invention are essentially that only one winch and only one rope formed as a pulley rope are used instead of multiple winches, and that a second telescoping body is used. The same rope that pays out from to the penultimate telescope also controls the payout of the last telescope and its bending, in which case all operations are performed via a power winch.

Furthermore, according to the invention, for this purpose, in combination with the rope guide according to the invention, a link is provided at the outer end of the penultimate telescoping body and at the inner end (starting end) of the last telescoping body. A shaped guide part is provided, the axis of which cooperates with the pulley rope and the locking device.

The invention will be explained in more detail below with reference to exemplary embodiments illustrated in the accompanying drawings.

The first telescoping body 4 of the tilt lift 1 carries a power winch 23 whose pulling line row 2 is the pulley rope 8 of the pulley system 7 . The pulley rope 8 of the pulley device 7 is deflected several times via rollers 9 from opposite ends of two adjacent telescope bodies (for example, the upper end 10 of the first telescope body 4). It is reciprocated via rollers 9 to the starting end 16) of the second telescope body 5.

A manually operated locking member 6 is provided between the first telescoping body 4 and the second telescoping body 5, with which it is possible to reach a predetermined or selected payout length. When the two telescope bodies are brought into a locked state, relative movement of the two telescope bodies is prevented.

The pulley rope 8 is itself guided from the starting end 16 of the second telescopic body 5 via the penultimate telescopic body 13 directly to the starting end 14 of the last telescopic body 15. but,
In order to avoid rope wastage, the pulley rope 8 is first moved from the starting end 16 of the second telescoping body 5 to the outer end 2 of the second telescoping body 5, as shown.
0 and from there the third telescopic body 1
8 and then to the outer end of the fourth or penultimate telescopic body 13 and then to the multiple winding guide 50 belonging to one of the outer rollers 57; From there it is guided to the pivotable central roller 56 of the penultimate telescope body 13, back again to the other roller 57 and from there to the starting end of the last telescope body 15. is advantageous. In this case, the pulley rope 8 is held firmly (see FIGS. 3, 4 and 5).

It is clear that complete and uniform unwinding cannot be achieved with the pulley rope 8 alone.

Cohesive feeding is performed depending on the friction ratio,
Even after locking, misalignment of the telescope bodies may still occur. Therefore, locks between the individual telescope bodies are usually required. This takes place in the last rope section 19, which runs from the first telescoping body 4 via the outer end 20 of the second telescoping body 5 to the starting end 17 of the third telescoping body 18. , and from the starting end 16 of the second telescope body 5 to the third telescope body 1
8 to the starting end 22 of the penultimate telescope body 13 or the fourth telescope body 13. There is no need to manipulate this rope section 19. Its function is automatic and only the length of the legs needs to be changed. If the position between the first telescoping body 4 and the second telescoping body 5 changes, the position of the respective following telescoping body changes correspondingly. Accordingly, the problem of locking between these telescope bodies is also solved.

If here the last telescope body 15 is to be bendable in the extended position, this telescope body must on the one hand be connected to the penultimate telescope body 13 in such a way that guidance takes place. On the other hand, it must be specially configured. As shown in FIGS. 3, 4 and 5, the penultimate telescope body 13 has a guide portion 31 attached to its outer end 12 with an additional shaft 30 in the form of a link. The guide profile 33 of this guide surrounds with its guide flange 34 a correspondingly shaped part of the last telescope body 15. The last telescope body 1
5 carries at its starting end 14 a corresponding link-shaped part 32 with an axis 30'. In the locking position of the locking device (see FIG. 9) 24, the link members 51, 52 are approximately at the same height as the shafts 30, 31', so that these link members are free.

The final function of extending and bending the telescope body 15 is performed as follows.

With the pulley rope 8 the telescope body is unwound to the desired length without the last telescope body 15 and the locking element 6 is inserted. With the exception of the last telescoping body 15, each of the telescoping bodies has been moved an equal distance relative to its guide part. The force is received by a rope section 19 of constant length. The pulley device rope 8 is unloaded. When the power winch 23 is operated again, the pulley rope 8 is fixed to the starting end 14 of the last telescope body 15, and the rope end 45 is placed behind the multiple winding guide 50 to the last telescope body. 15 from the guide of the penultimate telescope body 13.

The last telescope body 15 now runs in the direction of an arbitrary stop, not shown. This stopper has both link members 51 and 52 at their dividing position 35.
(see Figure 5), and are therefore provided so that they are free. As soon as the tension in the pulley rope 8 is relaxed in the area of the multi-turn guide 50, which spans and bridges the bends, by operating the pulley device 7, the additionally installed guide 31 moves to the last telegraph. Together with the link-shaped guide portion 32 of the scope body 15, the scope body 15 is moved to a desired operating position by its weight.

Three operating functions are thus possible with the power winch 23 and only one rope (pulley system rope 8).

First actuating function: Paying out the second telescope body 5 to the second telescope body 13 from the end, Second actuating function: Paying out the last telescope body 15, Third actuating function: Paying out the last telescope body 15. Feeding out the telescope body 15 to the working position.

Here, the bending section is again eliminated by the pulley device rope 8 together with the multiple winding guide section 50. The pulley rope 8 is tensioned so that e.g. the axle 46
The supporting jib 39, which can be pivoted about It comes to the same position as the second to last telescope body 13 again. Due to the tension of the pulley rope 8, the last telescope body is unwound a little further via the multiple winding guide 50, and the locking bolt 27 (see FIG. 9) of the lever 28, which is swung by the spring 29, locks into the locking hole. 26, and the heart-shaped guide piece 25 turns. Locking piece 55 ensures this function. The lock is broken. The last telescope body 15 enters the penultimate telescope body 13, in which case the locking bolt 27 returns to its starting position due to the bending of the leaf spring 54.

The transport vehicle 53 is arranged in a known manner with a load roller 58 provided at the end of the last telescopic body 15.
(see Figure 4). It is moved by an additional rope 59 to its final position shown in FIG.

FIG. 1 shows another configuration. tension rope 4
4 as the lower chord 41, the flexibility of the telescoping jib allows it to absorb significant bending stresses due to its own weight and the cargo being guided over it (transfer vehicle 53). It will be increased to such an extent that it will not be affected. The individual telescope bodies can therefore be easily moved relative to each other. On the other hand, the overall structure is also lightweight. Therefore, the cargo load can be increased. The tensioning rope 44 runs from the spool tensioning roller 42 via a removable spacer 40 to the abutment point of the penultimate telescope body 13 and is secured with a suitable tightening device 43.

The spool tensioning roller 42 automatically winds up the tensioning rope 44 when the telescoping jib is shortened. The locking member 6 and the rope section of constant length perform this function.

The bending caused by the dead weight of the free end 49 of the telescoping jib and by the loading onto the fixed point by the transfer vehicle 53 tensions the tensioning rope 44. Therefore, no special tensioning device is required.

[Brief explanation of the drawing]

Figure 1 shows a simplified side view of an inclined lift with a row of pull-through ropes as the lower chord, Figure 2 shows the five telescoping bodies of the telescoping jib;
For clarity, the individual telescope bodies are shown next to each other; Figure 3 is a partially cut-away side view of the end of the last bendable telescope body of the penultimate telescope body; 4 is a plan view of the terminal end shown in FIG. 3; FIG. 5 is a perspective view of the penultimate telescoping body with the last telescoping body and the bent telescoping body; FIG. 6, 7 and 8 are side views of the tilt lift in three different positions, and FIG. 9 shows the structure of the locking member with automatic snapping action. The symbols in the figure are 1... Inclined lift, 2... Pulling rope row, 4... First telescope body, 5...
Second telescope body, 6... Lock member, 7...
...Pulley device, 8...Pulley device rope, 9...Roller, 10, 11...Terminal end, 12...Terminal end of penultimate telescope body, 13...Pulle penultimate telescope body , 14... Starting end of the last telescope body, 15... The last telescope body.

Claims (1)

[Claims] 1. Actuation means consisting of a pull-through rope row 2 (pulley device rope 8 and rope section 19 of constant length) between the first telescope body 4 and the second telescope body 5 A locking member 6 for fixing the extended position of the telescope and an upper end portion 1 of the first telescope body 4
0 and a pulley device rope 8 guided in multiple layers via rollers 9 at the starting end 16 of the second telescope body 5 is formed between the first telescope body and the second telescope body. In a telescoping jib, in particular for inclined lifts, with a pulley device 7, the pulley device rope 8 is connected to the second telescoping body 5.
It is guided from there to the outer end 12 of the penultimate telescope body 13, via deflection rollers 56, 57 provided there, and further to the start end of the last telescope body 15 and fixed there. b. In addition to the pulley rope 8, a rope section 19 of constant length runs from the first telescope body 4 via the outer end 20 of the second telescope body 5 to the third telescope body 5. To the starting end 17 of the scope body 18,
Furthermore, it is guided to the starting end 22 of the penultimate telescope body 13, c. There is a predetermined payout length between the penultimate telescope body 13 and the last telescope body 15. A self-snapping locking device 24 is provided, which locking device is configured to prevent the last telescopic body 15 from entering into the penultimate telescopic body 13. , d The penultimate telescoping body 13 is provided at its outer end 12 with a guide part 31 which is arranged in a link-like manner via an axis 30, while the last telescoping body 15 has a corresponding link part. at its inner starting end 14, e the shaft 3 of the penultimate telescope body 13;
The above-mentioned telescopic jib, characterized in that, in the position fixed by the locking device 24, the telescopic jib is provided substantially in the plane of the upper guide part 34 and in the dividing plane 35 for the guide part 31. 2 The pulley device rope 8 is connected to the second telescope body 5
from its starting end 16 to its terminal end 10 , from there to the starting end 17 of the third telescopic body 18 and from there to the terminal end 12 of the penultimate telescopic body 13 , A telescoping jib according to claim 1. 3 A locking member 6 is provided for fixing the first telescope body 4 to the second telescope body 5 when the telescope body is operated, and the lock member 6 is provided to secure the first telescope body 4 to the second telescope body 5 when the telescope body 5 is operated. Telescoping jib according to claim 1, in which a rope section 19 is tensioned which defines the position of all telescoping bodies therebetween. 4 Locking device 2 that automatically snaps
4 as both the last telescope body 13 or 15
One telescope body is provided with an approximately heart-shaped guide piece 25 with a locking hole 26, and the other telescope body is provided with a resiliently pivotable locking bolt 27 of a lever 28, which locking bolt is provided with a locking hole 26. The body 13 or 15 is moved forward and then guided in a retracting movement until it falls into the locking hole 26 against the guide piece 25, and this locking hole 26 and the guide piece 25 are connected to each other by the telescope body. When the rope undergoes relative movement again due to tension, the locking bolt 7 closes in the locking hole 2.
6. A telescoping jib according to claim 1, wherein the telescoping jib is configured to be raised from 6, swiveled further and then subsequently returned to its starting position when the direction of movement of the telescoping body changes. 5. The outer telescoping body 36 of the last telescoping body 15 carries a sliding shoe 37 that captures it from the outside and is connected via a link rod 38 to a support bracket 39, which 2. Telescoping jib according to claim 1, wherein the bracket itself is fixedly provided on the terminal end 22 of the penultimate telescoping body 13. 6 Actuating means consisting of a pulling-in rope row 2 (pulley device rope 8 and rope section 19 of constant length), determining the payout position between the first telescoping body 4 and the second telescoping body 5 Locking member 6 and upper end 1 of first telescope body 4
0 and a pulley device rope 8 guided in multiple layers via rollers 9 at the starting end 16 of the second telescope body 5 is formed between the first telescope body and the second telescope body. In a telescoping jib, in particular for inclined lifts, with a pulley device 7, the first telescoping body 4 and the penultimate telescoping body 13 are connected by a rope 44, which is guided through a spacer 40 and acts as a lower chord 41, which is automatically shortened by a spool tensioning roller 42 and which absorbs bending forces when the lower telescope body is locked and then fixed by a tightening device 43. The above-mentioned telescoping jib, characterized in that it is configured to be tensioned by.