Fastening device for fastening a plate to traction means

Patent metadata

Field	Value
Publication number	US-9932206-B2
Application number	US-201515314169-A
Country	US
Kind code	B2
Filing date	May 13, 2015
Priority date	May 28, 2014
Publication date	Apr 3, 2018
Grant date	Apr 3, 2018

Abstract

A plate belt of a moving walkway has plates arranged in succession in a movement direction and between two mutually parallel link chains formed by chain links of different widths. Each chain link is connected with one of the plates by at least one fastening device. The fastening devices include a fastening bolt and a cup washer, wherein the cup washer has a cup base ring and a cup collar encircling the cup base ring. The inner height of the cup collar corresponds with the thickness of at least one chain link strap of the chain link and the inner diameter of the cup collar is greater than the outer diameter of the region of the fastening bolt bearing against the cup base ring in the mounted state.

First claim

The invention claimed is:

1. A plate belt of a moving walkway with a plurality of plates, which plates are arranged in succession in a movement direction and between two mutually parallel link chains formed by chain links of different width, comprising:
each of the chain links of the link chains being connected with an associated one of the plates by at least one fastening device in a mounted state;
the at least one fastening device including a fastening bolt and a cup washer;
wherein the cup washer has a cup base ring and a cup collar encircling the cup base ring;
wherein an inner height of the cup collar corresponds with a thickness of a chain link strap of the chain link; and
wherein an inner diameter of the cup collar is greater than an outer diameter of a region of the fastening bolt bearing against the cup base ring in the mounted state of the at least one fastening device.

2. The plate belt according to claim 1 wherein in the mounted state the fastening bolt penetrates the chain link strap and a mutually parallel another chain link strap of the chain link.

3. The plate belt according to claim 1 wherein the chain links of the link chains include a narrow chain link and a wide chain link, the narrow chain link being narrower in width than the wide chain link, and wherein the cup washer is arranged between a bolt head of the fastening bolt and the chain link strap, the chain link strap being remote from the associated one plate, such that the cup collar bears against the chain link strap if the chain link is the narrow chain link and the cup base ring bears against the chain link strap if the chain link is the wide chain link.

4. The plate belt according to claim 1 wherein the chain links of the link chains are formed by alternation of a narrow chain link and a wide chain link, the narrow chain link being narrower in width than the wide chain link, and the cup washers are arranged in alternation such that the cup collar bears against the chain link strap of the narrow chain link and the cup base ring bears against the chain link strap of the wide chain link.

5. The plate belt according to claim 1 the fastening bolt penetrates a cheek of the associated one plate, which cheek faces the chain link, or penetrates into a bore of the associated one plate.

6. The plate belt according to claim 1 including a spacer, having a thickness which corresponds with the thickness of the chain link strap, arranged between the chain link and the associated one plate.

7. The plate belt according to claim 1 including a support sleeve, having a bore through which the fastening bolt is inserted, is arranged between the chain link strap and another chain link strap of the chain link.

8. The plate belt according to claim 7 including a spacer, having a thickness which corresponds with the thickness of the chain link strap, arranged between the chain link and the associated one plate and wherein the spacer is fastened to the chain link by the support sleeve.

9. The plate belt according to claim 1 wherein each of the link chains includes guide rollers arranged between the pairs of the chain link strap at articulation points of the link chain.

10. The plate belt according to claim 1 wherein each of the link chains includes guide rollers arranged at an outer side, which outer side is remote from the plates, of the chain links at articulation points, wherein the fastening bolt projects laterally beyond the guide rollers.

11. The plate belt according to claim 1 including a slide element having a low coefficient of slide friction is arranged at a bolt end of the fastening bolt.

12. A moving walkway including the plate belt according to claim 1 .

13. A method of monitoring the plate belt of the moving walkway according to claim 1 comprising the steps of:
providing at least one monitoring sensor at a position adjacent one of the link chains;
detecting the fastening bolt as the one link chain moves past the at least one monitoring sensor; and
generating a sensor signal in response to the detecting and comparing the sensor signal with a target value in a monitoring unit to control the moving walkway.

14. The method according to claim 13 wherein the at least one monitoring sensor is one of a CCD camera, a TOF camera, a light barrier, a touch switch, a laser scanner, an inductive proximity switch, a high-frequency antenna and an RFID reader.

15. A method of modernization of an existing moving walkway having an existing plate belt comprising the steps of:
replacing the existing plate belt with a new plate belt, the new plate belt having a plurality of plates, which plates are arranged in succession in a movement direction and between two mutually parallel link chains formed by chain links of different width;
providing each of the chain links of the link chains with a connection with an associated one of the plates by at least one fastening device in a mounted state;
wherein the at least one fastening device includes a fastening bolt and a cup washer;
wherein the cup washer has a cup base ring and a cup collar encircling the cup base ring;
wherein an inner height of the cup collar corresponds with a thickness of a chain link strap of the chain link; and
wherein an inner diameter of the cup collar is greater than an outer diameter of a region of the fastening bolt bearing against the cup base ring in the mounted state of the at least one fastening device.

Assignees

• Inventio Ag

Inventors

• Matheisl Michael
• Schulz Robert
• Eidler Werner
• Illedits Thomas

Classifications

• B66B29/005

  Applications of security monitors · CPC title

• B66B23/145

  Roller assemblies · CPC title

• B65G17/067 Primary

  the load carrying surface being formed by plates or platforms attached to more than one traction element · CPC title

• B66B23/10 Primary

  Carrying belts · CPC title

• B65G39/20

  attached to moving belts or chains · CPC title