JPS5957900A - Reinforced telescope type jib - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides for a roller having at least one locking member which prevents relative movement in the crowd direction between the telescope sections and which is insertable in any selectable payout position. The present invention relates to telescoping jibs, especially as extendable rails for movable cargo kibble and the like.

In telescoping jibs, it is sometimes necessary to provide a locking wire between the two telescoping sections to limit payout. In a technology that is not yet publicly known (see West German patent number fiP 30014109), it has already been proposed to provide a locking member between the first telescope section and the second telescope section from the end. There is. In this configuration, the delivery length can be selected practically at will. A locking member constructed in some manner between the telescopic sections is an essential premise of the invention described below.

Telescoping jibs are often used as tilt lifts, for example by housewrights, construction workers, etc. For example, tiles, cement, etc. are carried to a high place. In this case, the telescoping jib is extended to such an extent that its end can rest on some fixed point. Upon reaching this upper bearing point, the telescoping jib actually becomes a correspondingly curved one-sided tensioned support. Therefore, this nine-sided side will be facing the ground. But as soon as the free end rests on the fixed point, the situation is reversed. That is, the carrier rests on two support points, so that the bottom side is now directed towards the ground. In this state, the cargo kipple, possibly loaded with heavy cargo, is carried upwards on rails formed by telescoping jibs. The smaller the angle between the ground and the telescope jib, the more
Bending stress becomes increasingly large. However, since telescoping jibs have to be constructed taking into account the maximum loads that can be assumed in each case, conventionally, in the case of vertical lifts, the construction is necessarily unusually robust and therefore expensive. For inclined lifts, the payout length ij 4 (I
It is m. In other words, the stress in the bend is significant, and under the cargo, QS
This is further increased if the VC cargo is located approximately in the center between the fixed points. If the unrolling length is to be corrected if necessary, the tension caused by the load between the telescopic sections is also increased by 9 degrees, so that movement of the telescopic sections is no longer possible.

The above-mentioned disadvantages are avoided according to the invention, and a much greater unrolling length is obtained with relatively small dimensions and with a relatively low material outlay, while the support is as straight as possible and therefore does not curve significantly. The body can be reached.

According to the present invention, one or more ropes are guided through spacers to bridge the multiple telescope sections of the telescope and are tensioned to form one or more reinforcing belts. This is solved by configuring a telescoping jib.

In this case, the tension in the rope can be created in any desired way, provided only that the telescopic sections are mutually locked in the crowd direction.

A spacer in which the rope is guided is provided at each end of the telescopic section. These spacers are, for example, fixed in the form of links and are recoilable and designed in the form of stirrups.

Furthermore, it is an object of the present invention to construct the telescoping jib in such a way that additional means for generating rope tension are not required. According to the invention, the rope, which is fixed only on one side, runs on a pretensioned take-up roller or the like forming a rope store, so that the rope is always under some tension itself and the telescoping jib is unwound. When this occurs, a rope bridge is formed, although of course it does not have any reinforcing effect yet. When the locking element is now inserted/deactivated, the telescopic section can no longer be slid relative to each other in the crowd direction. By forming a free carrier with tension on one side υ, the prescope jib curves downward,
The rope therefore occupies the shortest position. If, according to another feature of the invention, the rope is held in place by means of a switchable holding device before it runs into the winding roller, the rope no longer becomes longer. Now, when the outer end of the telescoping jib rests on a fixed point, the rope becomes like a string. The telescoping jib remains slightly curved downward, creating an ideal bridge for cargo being carried over it.

Advantageously, the penultimate telescope section and the first telescope section are bridged by a belt, in particular a rope forming the lower string. Of course, the essential configuration according to the invention is also suitable for forming upper strings or side strings, depending on what type of use is intended. The lobe winding device may be pretensioned in the winding direction by any means, such as pneumatically or electrically or by a stop motor, an e-pressure drive arrangement or a spring drive mechanism. It is advantageous to provide the rope winding device in the first telescopic section. An operating mechanism provided in the area of the control station makes it possible to operate the rope holding device. The invention thus makes it possible to transport relatively heavy loads on such inclined lifts with little construction outlay, and without the need for the individual telescope sections to be overloaded in their heavy positions. There are no defects or material deformations, and no disadvantages associated therewith occur.

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

A telescoping 7" jib 1 forming a tilting lift forms a rail 2 on which a rental kipple 3 can run. The telescoping section 4 can be adjusted by means of a locking element 5 to its selected extension. The rope or ropes 6 are guided through spacers 7 and form a reinforcing string 8. The spacers 7 are each attached to an end 9 of the telescopic section 4; The rope 6 is fixed to a stopper 10fC at the outer end of the penultimate telescope section. Pretensioned winding roll 2 forming rope store 12 via holding device 14 and guide 13
Run to 11. Pretensioning can be generated in the winding direction by any means, hydraulically, pneumatically, electrically or by a spring mechanism. This ensures constant rope tension.

When the telescopic sections are unwound, the spacers 7 gradually increase their distance from each other and slide on the rope, which is continually lengthened by unwinding from the take-up roller 11. Once the required payout position has been reached, the rope holding device 14, which is configured in a known manner as a return brake, clamp, etc., is connected. Here, the cope 6 runs below the telescope zip 1 from the stopper 10 to the rope weeping device 14 provided in the teles 13-1 section 16 of the thread.

The rope thus forms, together with all the telescopic sections up to the penultimate telescopic section, a carrier 18 which is reinforced by the lower chord 17. This carrier 1
Since the rope 8 is tensioned on one side, the rope 6 forms a kind of bowstring, like a fishing rod that bends depending on the inclination. Once the rope holder 14 is connected, this curved position no longer changes at all. When the outer end of the telescoping jib now rests on a fixed point with its upper support part 19, a support is formed with fulcrums on both sides, which tends to bend downwards. This first direction occurs especially when the Kiberu 5 loaded with received cargo is transported on a carrier. This bending force tensions the rope 6. However, it does not require special tensioning devices.

Of course, the tension in the rose can also be increased by connecting the rope holding device 14 to the VC just before reaching the locking position, so that the tension in the rope is increased by the last stroke of the relative movement of the parts, i.e. the telescoping jib 4 A corresponding tension is given by the final extension of .

In addition, the invention provides a method by which the winding roller 11
is provided with an additional drive acting in the winding direction, which drives the telescope sections relative to each other in the crowding direction, even if, for example, the weight component is no longer available for crowding the telescope sections. Can be used to force telescoping sections so that movement is possible.

In any case, the pretensioning carried out in the winding direction is generally selected in such a way that the rope 6 supports crowding of the telescopic section.

[Brief explanation of the drawing]

1 is a side view of the telescoping jib according to the invention in the extended position and supported on one side; FIG. 2 is an enlarged cross-sectional view of the telescoping jib according to FIG. 1; FIG. 3 is a telescoping jib as a carrier tensioned on one side. The symbols in the diagram are: 4th, telescope jib classification 5, locking member 6, rope 8, reinforcement belt drawing (no change in content) procedural amendment □ (power type) Showa, da 8 1/Month//1'' Commissioner of the Japan Patent Office, 1゜Kazuzu Usugi1, Indication of the case, Showa Keq Patent Application No. 2 BSTBQ No. 2, Name of the invention, Director, and Lll are also erased. 5” shift
3. Relationship with the case of the person making the amendment Applicant fs '” #j, 'l' to Eltove/+7 rule
Name Gel°・:, /1□ '71-・, 1・be/-+, 1/Nofkul. Hano／'／〆′! 77 i Rinopaniri'lnoE l-
% Pill/Yant 4, Agent 5, Amendment Order]"Applicant's section of the appended application, power of attorney penalty) Yusho Yi → Master's Throat 噸表鴫God is an engraving of the drawings. (No change in content)
7. Details of the amendment as shown in the attached sheet.

Claims (1)

[Claims] 1. Running on rollers provided with at least one locking member that prevents relative movement in the crowding direction between the telescope sections and that can be inserted at any selectable delivery position ft. In telescopic jibs, especially as extendable rails, one or more ropes (
Telescoping jib 6) as described above, in which a number of telescoping sections (4) are guided via spacers, bridged and tensioned to form one or more reinforcing chords (8). 2. A telescoping jib according to claim 1, in which the spacers (7) are provided at the ends of each telescoping section. (5) The spacers (7) are fixed in the form of links, The telescopic jib according to claim 1 or 2, which is capable of recoil. 4. The rope (6) runs on a pretensioned take-up roller (1, etc.). , forming a winding store (12) and being fastened on one side to a stop (10), according to one of the claims 1 to 6. 5. Before the position (15) where one or more ropes (6) rest on the take-up roller (1), a switchable rope holding device (15) such as a clamp, a return brake, etc. 6. The telescopic jib according to any one of claims 1 to 4, 1.
5) and any of claims 1 to 5, 1, in which the first section and the telescopic sections present between these sections are bridged by a lobe string. Telescoping jib according to one of the above;
18) A telescoping jib according to any one of claims 1 to 6, which is formed 'if-. a Rope holding device (1 is the first telescope division (
16) and configured to be operable from a restricted location via an operating member, according to any one of %ITF claims 1 to 7. Scoped jib. 2. The take-up roller (12) or the take-up store (12) is configured so that it is provided with a tensioning drive force for the rope that acts in conjunction with the winding aid means and serves to constantly tension the rope. A telescopic jib according to any one of the dimensions in the range 1 to 8.