EP1142823B1 - Device for lubricating an escalator or moving walkway - Google Patents

Description

The invention relates to a lubricating device for an escalator or moving walk, wherein a step band in the escalator or a pallet band at the moving walk between lateral boundaries is performed, and wherein lubricant containers are provided, which are connected via lines with lubrication points.

Such lubricating devices have the purpose of preventing it from environmental, virtually unavoidable dirt deposits such as dust, abrasion of subway brakes, etc. on base plates of the escalator or moving walk or unfavorable material compositions to increased friction and noise between the base plates and the step band or can come to the pallet band.

A lubricating device is eg off JP-A-10109874 known.

With the Japanese Patent JP 5319767 a lubricating device for escalators has become known, by means of which guide rails for the step band of an escalator can be lubricated. For this purpose, a battery-powered electromagnetic valve is provided, which is arranged at an exit opening of an oil container attached to an escalator step. On the electromagnetic valve, a pipe is connected, via which the guide rail for the rear wheel of the escalator step is lubricated. From the pipe branches off a flexible hose, through which the lubricant of the guide rail for the front wheel of the escalator stage is supplied. For the control of the electromagnetic valve, a timer is provided. In this escalator perfect lateral lubrication is not guaranteed. In addition, it should be regarded as a disadvantage that the relevant escalator step must be dismantled during maintenance work.

In another, with the Japanese Patent Publication JP 08225285 become known lubricating device for a Escalators are provided on the side edges of the back of the tread part and the riser part of an escalator step lubricant holder. From the lubricant holders, brush-forming bristles protrude, which touch the sidewalls of the escalator. A mounted on the back of the tread part Gleitmittelbehälter is connected via pipes and wicks inserted in this with the Gleitmittelhaltern or the brushes. Also with this lubricating device, the escalator step concerned must be dismantled during maintenance work. In addition, relatively much lubricant is consumed by the long brush formed by means of the bristles and a wide lubricating track is formed, which is only partially covered by the step band.

The invention has for its object to propose a lubricating device of the type mentioned, which does not have the aforementioned disadvantages.

This object is achieved by the invention defined in claim 1. Here, a lubricant container is connected via lines with lubrication points, which are arranged on lateral boundaries of a step band of the escalator or a pallet band of the moving walk. On the escalator steps and on the pavement pallets sliding blocks are provided, which protrude slightly over the lateral edges of the escalator steps and take over the lubricants on passing the lubricant and transferred to the lateral boundaries.

Since the task, effect and execution of the present invention are virtually identical in escalators and moving walks, in the following, for the sake of simplicity, only their use in escalators will be described.

According to a particular embodiment, the lubricant container is arranged within a balustrade base in the upper part of the escalator. In the lubricant tank protrudes a Schmierdocht, the other end in the area Sliding blocks is attached to a side plate forming the base plate and protrudes through a hole in the base plate, whereby the lubrication point is formed.
Further possible embodiments are apparent from the dependent claims.

The advantages achieved by the invention are in particular that noise is avoided and by reducing the friction of the wear of the sliding blocks is reduced and damage to the base plates are prevented. Further advantages are the fact that the lubricant container is more easily accessible and that the lubricant track formed by the sliding blocks is concealed and relatively narrow and therefore lubricant-saving.

Fig.1

eine Seitenansicht einer Fahrtreppe in vereinfach ter Darstellung,

Fig.2

einen Querschnitt entlang der Linie II-II in der Fig.1,

Fig.3

ein Detail A des Querschnittes gemäss Fig.2 in grösserem Massstab, mit der erfindungsgemässen Schmiervorrichtung in einer ersten Ausführung,

Fig.4

einen Teilschnitt entlang der Linie IV-IV in der Fig.3,

Fig.5

ein Detail B der Fig.1 in grösserem Massstab, mit der Schmiervorrichtung in einer zweiten Ausführung,

Fig.6

eine Ansicht in Pfeilrichtung C der Fig.5,

Fig.7

das Detail A des Querschnittes gemäss Fig.2 in grösserem Massstab, mit der Schmiervorrichtung in einer dritten Ausführung, und

Fig.8

einen Teilschnitt entlang der Linie VIII-VIII in der Fig.4 in grösserem Massstab.

In the following the invention will be explained in more detail with reference to several embodiments in conjunction with the drawings. Show it:

Fig.1

a side view of an escalator in a simplified ter representation,

Fig.2

a cross section along the line II-II in the Fig.1 .

Figure 3

a detail A of the cross section according to Fig.2 on a larger scale, with the inventive lubricating device in a first embodiment,

Figure 4

a partial section along the line IV-IV in the Figure 3 .

Figure 5

a detail B of the Fig.1 on a larger scale, with the lubricating device in a second embodiment,

Figure 6

a view in the direction of arrow C of Figure 5 .

Figure 7

the detail A of the cross section according to Fig.2 on a larger scale, with the lubricating device in a third embodiment, and

Figure 8

a partial section along the line VIII-VIII in the Figure 4 on a larger scale.

In the Fig.1 to 4 1 is an escalator, in which a step belt 4, which consists of interconnected by means of a transport chain 4.1 escalator steps 5, in the upper part of the escalator 1 between side boundaries forming base plates 3 is moved and guided. The base plates 3 are parts of Balustradensockeln 2.1 where a balustrade 2 is attached. At the escalator stages 5 are below with reference to Figure 8 closer sliding blocks 6 arranged, which protrude slightly (for example, 2mm) on the side edges of the escalator steps 5, so that the step belt 4 is guided by means of the sliding blocks 6 between the base plates 3. Within the Balustradensokkels 2.1, in the upper part of the escalator 1, a lubricant container 7 is arranged. A lubricating wick 8 protrudes into the lubricant container 7 with one end, while the other end of the lubricating wick 8 is fastened in the region of the sliding blocks 6 to the base plate 3 and protrudes through a hole in the base plate 3, whereby a lubricating point 9 is formed. The Schmierdocht 8 projects in this case only so far out of the base plate 3, that the edges of the escalator steps 5 are not touched. During the driving operation of the escalator 1 slide the sliding blocks 6 past the lubrication point 9, where they press the end of the lubricating hole 8, take over the lubricant and transferred to the base plate 3.

According to the Fig.5 and 6 the lubricant container 7 is arranged in the lower region of the escalator 1, in the region of the lower deflection of the step belt 4. Here too, one end of the lubricating hole 8 protrudes into the lubricant container 7, while the other end, however, in the region of Sliders 6 and a guide rail 13 for the step band 4 is attached to a wick holder 14, whereby the lubrication point 9 is formed.

In the execution according to Figure 7 the lubricant container 7 is arranged above the lubrication point 9 and connected via a lubrication line 10 in the form of a fixed tube with the lubrication point 9, so that a drop-flow lubrication is achieved. The lubrication point 9 is in this case designed such that the lubrication line 10 is secured in the region of the sliding blocks 6 by means of an adapter piece 12 on the base plate 3, wherein provided in the adapter piece 12 is provided with a bore part in the form of a felt piece or a brush for the delivery of the lubricant is. At the lubricating pipe 10, a reducing valve 11 is arranged for the control of the flow rate of the lubricant. Instead of the fixed pipe, a flexible hose can be used for the lubrication line 10, wherein a hose clamp is provided for the regulation of the flow rate.

In the Figure 8 is denoted by 5.1 with the escalator step 5 fixed column, which has a continuous receiving bore 5.2, in which the sliding block 6 is fixed. The sliding block 6 consists of an abrasion-resistant thermoplastic material and has a flange-like guide part 6.1 and a shaft 6.2, which is provided immediately behind the guide member 6.1 with a 6.3 Verrust. The end 6.4 of the shaft 6.2 is formed in a conventional manner such that the sliding block 6 is held by snapping in the receiving bore 5.2.

Instead of the statements according to the 3 to 7 , The lubricant container 7 can be connected via a feed pump, metering elements and lubricating lines 10 with the lubrication points 9, which are preferably arranged under the comb plates at the upper end of the escalator 1 to the base plates 3.

Any excess lubricant can drip off in the area of the return line.

Instead of performing the lubrication of the sliding blocks 6, as described above, with its own system, it can also be done by a centralized lubrication system, which also supplies several other lubrication points of the escalator.

LIST OF REFERENCE NUMBERS

1

escalator

2

balustrade

2.1

balustrade

3

footplate

4

Stufenbandprofile

4.1

transport chain

5

Escalator step

5.1

pillar

5.2

location hole

6

slide

6.1

guide part

6.2

shaft

6.3

twist fuse

6.4

End of the shaft

7

lubricant container

8th

lubricating wick

9

smudge

10

lubricating line

11

reducing

12

adapter piece

13

guide rail

14

wick holder

Claims (9)

1. Escalator or moving walkway with a lubricating device, wherein a step belt (4) in which the escalator or a plate belt at the moving walkway is guided between lateral borders and wherein lubricant containers connected with lubrication points (9) by way of lines (8, 10) are provided, characterised in that the lubrication points (9) are arranged at the lateral borders and sliding pads (6) are provided at escalator steps (5) of the step belt (4) or at plates of the plate belt and project slightly beyond the side edges of the escalator steps (5) or the moving walkway plates, which pads take over lubricant when sliding past the lubrication points (9) and transfer it to the lateral borders.
2. Escalator or moving walkway with a lubricating device according to claim 1, wherein the lateral borders in the upper part of the escalator (1) or the moving walkway are formed by base plates (3), characterised in that the lubricant container (7) is arranged within a balustrade base (2.1) in the upper part of the escalator (1) or the moving walkway and that one end of a lubricating wick (8) projects into the lubricant container (7), whilst the other end is fastened in the region of the sliding pads (6) at the base plate (3) and projects through a bore in the base plate (3), whereby the lubrication point (9) is formed.
3. Escalator or moving walkway with a lubricating device according to claim 1, wherein the lateral borders in the lower part of the escalator or the moving walkway are formed in the region of the lower deflection of the step belt (4) or the plate belt by guide strips (13), characterised in that the lubricant container (7) is arranged in the lower part of the escalator (1) or of the moving walkway in the region of the lower deflection of the step belt (4) or plate belt and that one end of a lubricating wick (8) projects into the lubricant container (7), whilst the other end is fastened to a wick container (14) provided in the region of the guide strip (13), whereby the lubrication points (9) are formed.
4. Escalator or moving walkway with a lubricating device according to claims 2 and 3, characterised in that the lubricating wick (8) is guided in a shrink-fitted hose.
5. Escalator or moving walkway with a lubricating device according to claim 1, wherein the lateral borders in the upper part of the escalator (1) or the moving walkway are formed by base plates (3), characterised in that the lubricant container (7) is arranged above the lubrication point (9) and connected with the lubrication point (9) by way of a lubricating line (10), wherein the lubrication point (9) is designed in such a manner that the lubricating line (10) is arranged at the base plate (3), in the region of the sliding pads (6) by way of an adapter member (12) and the adapter member (12) comprises a part, which is provided when a bore, in the form of a felt element or a brush for delivery of the lubricant.
6. Escalator or moving walkway with a lubricating device according to claim 5, characterised in that the lubricating line (10) is a rigid pipe at which a reducing valve (11) for regulation of the throughflow quantity of the lubricant is arranged.
7. Escalator or moving walkway with a lubricating device according to claim 5, characterised in that the lubricating line (10) is a flexible hose at which a hose clamp for regulation of the throughflow quantity is arranged.
8. Escalator or moving walkway with a lubricating device according to claim 1, characterised in that the sliding pad (6) consists of a flange-like guide part (6.1) and a shank (6.2), which is provided directly behind the guide part (6.1) with rotational securing means (6.2) and that the end (6.4) of the shank (6.2) is constructed in such a manner that the sliding pad (6) is retained by snapping into a receiving bore (5.2) in the escalator step (5) or the moving walkway plate.
9. Escalator or moving walkway wit a lubricating device according to claim 8, characterised in that the sliding pad (6) consists of a wear-resistant thermoplastic synthetic material.

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