EP0267411B1 - Inclined lift, in particular for persons or furniture - Google Patents

Abstract

1. Sloping elevator (8), in particular passenger and/or furniture elevator, having a plurality of telescope runners (9), each formed from two guide rails (e.g. 1-7) connected in rung-like fashion, for a load-carrying means (11) guided on the latter using a motordriven extension device between the bottom guide rail (e.g. 6) and the subsequent guide rail (e.g. 5) and using so-called finite traction mechanisms constructed as riveted drive chains (18) for the forced extension of the guide rails (4-1) following the guide rail (e.g. 5) next to the bottom, the riveted drive chains (18) being guided from a fixed point (P) at the top end (19) of a guide rail (e.g. 6-3) over a deflection roller (U) at the top end (19) of the guide rail (e.g. 5-2), following in each case, to a fixed point (P') at the bottom end (20) of the subsequent guide rail (e.g. 4-1) in each case, having the following features : a) the guide rails (6-1) are constructed as closed hollow profiles ; b) the guide rails (6-1) assigned to a telescope runner (9) are - with the possible exception of the bottom telescope runner (9') - solely connected in the region of the top end (19) of the guide rails (6-1) in a rung-like fashion (transverse bar 20) ; c) formed between two successive guide rails (6-1) there is in each case at least one channel (K1-K5), in cross section from the outside to the inside, for at least one finite traction mechanism (riveted drive chain 18) and, if appropriate, a return rope (R).

Description

The invention relates to an inclined elevator, in particular passenger and / or furniture elevator with a plurality of telescopic sections, each formed from two rung-like connected guide rails, for a load-carrying means guided thereon, using a motor-driven extension device between the lowermost guide rail and the next-following guide rail and using so-called pin chains finite traction means for the forced extension of the guide rails following the second lowest guide rail, the pin chains being guided from a fixed point at the upper end of a guide rail via a deflection roller at the upper end of the following guide rail to a fixed point at the lower end of the next following guide rail.

The invention is based on an older proposal by the applicant (secondary state of the art according to DE-A 3 628 447) in which bolt chains are used for the forced extension of the telescopic sections following the second lowest telescopic section in the manner described above. In the older application according to DE-A 3 628 447, the bolt chains take the place of the one from the hour d. T. (DE-C 3 137 845) known as ropes so-called "endless traction means", whereby the advantage of reduced rope elasticity and thus the advantage of more precise driving is achieved by the proposed bolt chains.

In the older application according to DE-A 3 628 447, however, telescopic sections are used which are formed from mutually parallel guide rails which are connected to one another in a ladder-like manner by a plurality of cross bars. The guide rails are designed as profiles which are approximately U-shaped in cross-section, of an embodiment as are known from EP-A 0 192 123. Such guide rails are advantageous for the transport of material, for example from the ground level to the roof of a house; between these guide rails, however, are the unprotected motor-operated extension devices (multi-sheared winch rope) between the lowest and the next telescopic section, as well as the so-called "finite traction means" designed as leaf chains for the forced extension of the following telescopic sections.

The subject of the application according to DE-A 3 628 447 is thus advantageously suitable for furniture elevators; not however for passenger lifts; insofar the claimed genre goes beyond DE-A 3 628 447.

The object of the invention is to improve an inclined elevator of the type mentioned at the outset so that it can be used in particular as a passenger elevator or combined passenger and / or furniture elevator, i.e. to increase the bending stiffness and torsional strength of the rails by means of an improved profile shape, while at the same time an exact guidance of the guide rails to one another is to be ensured to minimize the play. Furthermore, with reference to the so-called "finite traction means", a traction means guide is to be used which minimizes the elasticity of the traction means to a negligible extent in order to achieve precise driving, and in addition, in connection with the profile, there is a largely protected arrangement of the traction means against weather influences should.

The invention solves this problem with the teaching according to claim 1.

In the telescopic sections known from EP-A 0 192 123, the U-profiles of the guide rails pointing towards one another with their legs are connected in a ladder-like manner so that the upper and lower rollers of the load-carrying means can be guided only in the area of the upper approximately horizontally extending legs of these profiles . This results in a very small difference when driving over from one rail joint to the other, so that the formation of the bearing of the guide rollers of the load-carrying means presents little difficulty.

For this reason, there is a prejudice against a closed design of the guide rails, because they cannot be connected to one another over their entire length, and the formation of the bearing of the guide rollers is made more difficult due to the large difference when the rail joints are passed over.

The invention frees itself from this prejudice, so that telescopic shots are formed as a result, which are connected to one another only in the region of the upper ends of the guide rail by a cross belt.

The design as a closed hollow profile achieves maximum guiding properties and sliding properties of the individual profiles with one another, with the creation of defined channels between the individual telescopic sections providing a protected arrangement of the traction means required for the forced extension of the individual telescopic sections.

Further features of the invention are characterized by the subclaims.

According to claim 2, a double-acting hydraulic thrust piston transmission is used as the motor-driven extension device between the bottom and the following telescopic section, which has the advantage that both an exact extension and an exact (power-driven) retraction of the telescopic section following the bottom telescopic section is possible by means of the hydraulic pushing piston unit . However, the invention is not left if, instead of the hydraulic thrust piston transmission, a winch-driven rope is used in a manner known per se.

Because - with the exception of the guide rails of the lowest telescopic section - all guide rails of the following telescopic sections only cross in the area of their upper end Belt are connected, the cross belt is used to shift the pulleys for the pin chains and preferably the pulley for a return rope (claims 3-5). The use of a return rope has the advantage that when the second lowest telescopic section is actively retracted compared to the lowest telescopic section, all other telescopic sections are inevitably taken along in the sense of "retracting". This is particularly important if one starts from the consideration that the top telescopic section is anchored, for example, to a building, whereby it was accidentally forgotten to loosen the anchoring before retracting the hydraulic thrust piston gear. The uppermost telescopic section could pull out of the second uppermost if no suitable means are provided to prevent the uppermost telescopic section from being pushed out completely from the second uppermost. Since the guide rails are inserted into one another as closed profiles and are guided against one another with as little play as possible, the assignment of limit stops is difficult, so that in this case a return cable that limits the extension path and at the same time causes the forced insertion is a technically advantageous solution, especially as claimed in claim 6 Bolt chains and the retrieval cables are protected in a side-by-side arrangement in defined channels.

When using the invention in an elevator which is used exclusively for the transport of furniture, it is proposed to assign two pin chains to each guide rail, both of which serve as load-carrying work chains, i.e. serve together to carry the load when extending the telescopic shots, while it is proposed in a passenger elevator according to the invention that only one of the two pin chains is used for the forced extension, while the second pin chain runs to a certain extent unloaded or only slightly loaded and serves as a safety chain if the so-called work chain breaks. Claim 7).

Claims 9-12 relate to the design of the profile according to the invention. According to this, the innermost (uppermost) profile is designed as a closed rectangular profile, which - in the counting from the inside out - is enclosed by a following profile, which has an outwardly directed offset on a longer side of the rectangle, so that between the inner and the next one Profile a defined guide channel for the bolt chain and possibly a return rope is formed. The latter profile is in turn enclosed by a profile with a rectangular cross section; the bend of the profile following the innermost profile is made such that two guide channels are formed on the outside of the bend, in mirror image to one another, which can accommodate the following pin chains. By means of wear inserts arranged in a defined manner, which are preferably only provided in the lower and upper area of the respective profiles, an almost play-free guidance of the profiles to one another is possible.

As a result, an inclined elevator is achieved which, in contrast to the known inclined elevators, meets the high safety requirements for passenger transportation.

The invention is explained in more detail below using an exemplary embodiment of an inclined elevator with, for example, six telescopic sections.

• Fig. 1 in perspektivischer Darstellung die Gesamtansicht eines Schrägaufzuges
• Fig. 2 den untersten und zweituntersten Teleskopschuß gemäß Fig. 1 in einer Explosionszeichnung
• Fig. 3 einen Schnitt 111-111 gemäß Fig. 2
• Fig. 4 eine vervollständigte Darstellung gemäß Fig. 3
• Fig. 5 den Ketten- und Seilführungsplan
• Fig. 6 einen Querschnitt durch einen aus sechs Teleskopschüssen gebildeten Schrägaufzug, wobei ein siebter Teleskopschuß strichpunktiert angedeutet ist und der Verlauf der Bolzenketten eingezeichnet wurde
• Fig. 7 eine Darstellung gemäß Fig. 6, wobei der Verlauf des Rückholseiles eingezeichnet wurde

Show it:

• Fig. 1 is a perspective view of the overall view of an inclined elevator
• Fig. 2 shows the bottom and second bottom telescopic section of FIG. 1 in an exploded view
• 3 shows a section 111-111 according to FIG. 2
• FIG. 4 shows a complete representation according to FIG. 3
• Fig. 5 the chain and rope management plan
• 6 shows a cross section through an inclined elevator formed from six telescopic sections, a seventh telescopic section being indicated by dash-dotted lines and the course of the pin chains being drawn
• FIG. 7 shows a representation according to FIG. 6, the course of the return cable being drawn in

The inclined elevator 8 shown in FIG. 1 has a lower telescopic section 9 _E and five further telescopic sections 9 which can be extended relative to it. The telescopic section 9 _E is supported on a chassis 10 designed as a single-axle trailer, which spindles 12 can be supported over a large area in the use position via support. During driving operation, the lower telescopic section 9E is supported on a support 15; in the position of use, the support is provided in the desired inclined position by means of a telescopic support 16. 14 is a rotating ring which enables pivoting in the lateral direction.

The load-carrying device designated 11 (e.g. a furniture platform or a passenger cabin) is operated by means of a winch 13 via a load rope (not shown) which is guided over a deflection roller 26.

The individual guide rails were designated 1-6 (or 7, Fig. 6 and 7).

In Fig. 2 it is clear that the guide rails belonging to a telescopic section 9 (for example 5) can only be connected to one another in the region of their upper end 19 by a cross belt 20 provided with stiffeners 25 and can be inserted in the direction of arrow 31 into the telescopic section below. Only the guide rails 6 of the lower telescopic section 9 _E are connected by a further transverse belt 29 for the purpose of displacement on the chassis 10 in the region of their lower end 21.

1 and 5 that a double-acting hydraulic thrust piston transmission 17 is fastened with its cylinder 28 in the region of the transverse belt 29, and with its associated piston rod 27 an opening 22 in the transverse belt 20 of the telescopic section 9 'passes through and is connected to the free end of the piston rod 27 (see FIG. 5) on the cross belt 20 of the guide rail 5.

5 in conjunction with FIGS. 6 and 7, it was assumed that when used as a passenger elevator, a pin chain, preferably designed as a leaf chain, serves as the work chain A and a second pin chain as the safety chain S. Two pin chains are thus assigned to each guide rail. Starting from the lowermost guide rail 6, the working chain A and the safety chain S run from an upper fixed point P at the upper end 19 of the guide rail 6 via a deflection roller U on the cross belt 20 in the region of the guide rails 5 to a lower fixed point P 'of the guide rail 4 the next following pin chains from the upper end of the guide rail 5 via the guide roller U at the upper end of the guide rail 4 to a fixed point at the lower end of the guide rail 3 and so on.

The return cable R (see FIG. 5) is guided from an upper fixed point P "of the guide rail 6 via a deflection roller U 'at the lower end of the guide rail 5 to a fixed point P" at the upper end of the guide rail 4, i.e. the following return cable is guided from an upper fixed point on the guide rail 5 via a deflection roller at the lower end of the guide rail 4 to an upper fixed point on the guide rail 3 and so on.

As shown in FIGS. 4, 6 and 7, the offset bends of the guide rails 2, 4 and 6 each belonging to a telescopic section 9 or 9 'in conjunction with the straight rectangular sides of the guide rails 1, 3 and 5 (and, if appropriate 7) defined guide channels K1 - K5 are created, in which both the deflection rollers U (see FIG. 6) for deflecting the pin chains and the deflection rollers U '(see FIG. 7) for deflecting the return rope R are arranged. As can be seen from FIG. 6, the deflection rollers U for the pin chains (work chain A or safety chain S) are mounted on bearings 23 of the associated telescopic sections.

From Fig. 6 it can also be seen that wear inserts 24 are arranged on the mutually facing surfaces of the individual profiles, which define the predetermined play between the individual guide rails 1-6 or 7.

With reference to the guide rail 7 it can be seen that if additional guide rails (7 and the following) are assigned, the profile can be changed by pulling in the profile corner 30 to increase the rigidity; however, it is crucial to ensure that there is an adequately large additional channel, designated K6, for the pin chain and the return cable.

Reference symbol list

• 1 = rail no.1
• 2 = track no.2
• 3 = track no.3
• 4 = rail no.4
• 5 = rail no.5
• 6 = rail no.6
• 7 = rail no.7
• 8 = inclined elevator
• 9 = telescopic shots
• 9 '= lowest telescopic shot
• 10 = chassis as a single-axle trailer
• 11 = load suspension device as a furniture platform
• 12 = support spindle
• 13 = winches for load rope
• 14 = slewing ring
• 15 = support
• 16 = telescopic support
• 17 = thrust piston gear as extension device
• 18 = pin chain
• 19 = upper end of the guide rails
• 20 = cross belt
• 21 = lower end of the guide rails
• 22 = opening in the cross belt 20
• 23 = bearing of the deflection rollers U for pin chains
• 24 = wear insert
• 25 = stiffening ribs
• 26 = pulley for load rope
• 27 = piston rod
• 28 = cylinder
• 29 ₌ cross belt
• 30 = profile corner
• 31 = arrow direction
• P = upper fixed point of the pin chain
• P '= upper fixed point of the pin chain
• U = pulley for pin chain
• P '= lower fixed point of the pin chain
• R = return rope
• U '= pulley for return rope R
• P "= upper fixed point of the return rope R
• P "= upper fixed point of the return rope R
• K1 - K6 = channels

Claims (12)

1. Sloping elevator (8), in particular passenger and/or furniture elevator, having a plurality of telescope runners (9), each formed from two guide rails (e.g. 1-7) connected in rung-like fashion, for a load- carrying means (11) guided on the latter using a mo- tordriven extension device between the bottom guide rail (e.g. 6) and the subsequent guide rail (e.g. 5) and using so-called finite traction mechanisms constructed as riveted drive chains (18) for the forced extension of the guide rails (4-1) following the guide rail (e.g. 5) next to the bottom, the riveted drive chains (18) being guided from a fixed point (P) at the top end (19) of a guide rail (e.g. 6-3) over a deflection roller (U) at the top end (19) of the guide rail (e.g. 5-2), following in each case, to a fixed point (P') at the bottom end (20) of the subsequent guide rail (e.g. 4-1) in each case, having the following features:

a) the guide rails (6-1) are constructed as closed hollow profiles;

b) the guide rails (6-1) assigned to a telescope runner (9) are - with the possible exception of the bottom telescope runner (9') - solely connected in the region of the top end (19) of the guide rails (6-1) in a rung-like fashion (transverse bar 20);

c) formed between two successive guide rails (6-1) there is in each case at least one channel (K1-K5), in cross section from the outside to the inside, for at least one finite traction mechanism (riveted drive chain 18) and, if appropriate, a return rope (R).

2. Sloping elevator according to Claim 1, characterized in that the motor-driven extension device is a double-action, hydraulic thrust piston gear (17) connected at the one end to the bottom end (21) of the bottom telescope runner (9'), passing with play through an aperture (22) in the top transverse bar (20) of the bottom telescope runner (9') and arranged at the other end on the transverse bar (20) of the subsequent telescope runner (9).

3. Sloping elevator according to Claim 1, characterized in that the bearings (23) for the deflection rollers of the riveted drive chains (18) are arranged on the transverse bars (20).

4. Sloping elevator according to Claim 1, characterized in that at least one deflection roller (U') for a return rope (R) is arranged in each case at the bottom end (21) of the guide rails (5-2) of the telescope runners (9) following the bottom telescope runner (9') with the exception of the top telescope runner (9).

5. Sloping elevator according to Claims 1 to 4, characterized in that a return rope (R) is guided in each case from a fixed point (PH) at the top end (19) of a guide rail (6-3) over a deflection roller (U_') at the bottom end of the following guide rail (5-2) to a fixed point (P"') at the top end (19) of the subsequent guide rail (4-1).

6. Sloping elevator according to Claim 1, characterized in that two finite traction mechanisms (riveted drive chains 18), operating the forced extension, are guided in adjacent arrangement in the channel (K1-K5) formed between two successive guide rails (1 and 2 or 2 and 3 etc.).

7. Sloping elevator according to Claims 1 and 6, characterized in that the two riveted drive chains (18) guided in adjacent arrangement in the channel (K1-K5) formed between two successive guide rails (1 and 2 or 2 and 3 etc.) are constructed optionally as two working chains (A) or one working chain (A) and one safety chain (S).

8. Sloping elevator according to Claims 1 and 6, characterized in that two finite traction mechanisms (riveted drive chains 18), operating the forced extension, and a return rope (R) are guided in adjacent arrangement in the channel (K1-K5) formed between two successive guide rails (1 and 2 or 2 and 3 etc.).

9. Sloping elevator according to Claim 1, characterized in that the guide rails (6-1) are constructed as closed rectangular profiles and each second guide rail (2, 4, 6) has an offset to form adjacent guide channels (K1-K5).

10. Sloping elevator according to Claims 1 and 9, characterized in that - counting from the inside to the outside - the top guide rail (1) has a closed rectangular profile, the subsequent guide rail (2) has a closed rectangular profile with an offset arranged on one longer rectangular side, the subsequent guide rail (3) has a closed rectangular profile, the subsequent guide rail (4) has a closed rectangular profile with an offset arranged on one longer rectangular side, and so on, in such a way that guide channels (K1-K5) for finite traction mechanisms (riveted drive chains 18) and/or return ropes (R) are formed in each case by the offset of one rectangular side between the offset guide rail (2, 4, 6) and the previous guide rail (1, 3, 5) on the one hand and the following guide rail (3, 5) on the other hand.

11. Sloping elevator according to Claims 1, 9 and 10, characterized in that the offset of the guide rails (2, 4, 6) is arranged on the facing rectangular sides of two adjacent guide rails (2, 4, 6) assigned to a telescope runner (9, 9').

12. Sloping elevator according to Claims 1 and 9-11, characterized in that anti-wear inserts (24) are arranged between the facing surfaces of adjacent rectangular sides.

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