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1. WO2007138156 - ARRANGEMENT IN THE DRIVE MACHINERY OF A TRAVELATOR, METHOD FOR CHANGING THE DRIVE BELT OF THE HANDRAIL BELT OF THE HANDRAIL OF A TRAVELATOR, AND SUPPORT ELEMENT OF THE HANDRAIL BELT OF THE HANDRAIL OF A TRAVELATOR

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[ EN ]

CLAIMS

1. Arrangement in the drive machinery (1) of a travelator, moving walkway, escalator or similar, which travelator or similar comprises, in addition to the drive machinery (1), at least one handrail (13) with handrail belt (12), and which drive machinery (1) comprises at least a drive motor (2) , a support element (10) of the handrail belt (12) and a drive belt (8) connecting the rotational movement of the drive motor (2) to the support element (10) , characterized in that the support element is a supporting wheel of essentially large diameter fitted for use by the drive belt (8) , and in that the drive belt (8) is fitted to the rim of the support element (10) .

2. Arrangement according to claim 1, characterized in that the radius of the support element (10) is essentially as great as, or at the most smaller by the thickness of the drive belt (8) than, the radius of curvature of the inner surface that is the contact surface of the loop of the handrail belt (12) at the point of the support element (10) .

3. Arrangement according to claim 1 or 2 , characterized in that a drive belt (8) is fitted to the rim of the support element (10) such that the outer surface (15) of the drive belt (8) is in friction contact with the inner surface of the handrail belt (12) .

4. Arrangement according to claim 1 or 2, characterized in that the outer rim of the support element (10) is in friction contact with the inner surface of the handrail belt (12) .

5. Arrangement according to any of the preceding claims, characterized in that the supporting wheel (10) contains a coupling element (14) , the drive belt (8) of which is fitted to be coupled to it in connection with placing the drive belt (8) into position.

6. Arrangement according to claim 5, characterized in that the coupling element (14) is an installation groove extending essentially inwards from the rim of the supporting wheel (10) , to which installation groove the drive belt (8) is arranged to be fitted in connection with placing the drive belt (8) into position.

7. Method for replacing the drive belt (8) of the handrail belt

(12) of the handrail (13) incorporated in a travelator, moving walkway, escalator or similar in the drive machinery (1) of the travelator or similar, which drive machinery (1) comprises at least a drive motor (2), a handrail belt (12), a support element (10) and a drive belt (8) connecting the rotational movement of the drive motor (2) to the support element (10) , characterized in that the drive belt (8) is fitted to the support element (10) in connection with placing the drive belt

(8) into position and the support element (10) is rotated around its axis of rotation (11) until the drive belt (8) is placed around the support element (10) .

8. Method according to claim 7 , characterized in that an installation groove is used in the support element (10) as the coupling element (14) of the drive belt, to which installation groove the drive belt (8) is fitted in connection with placing the drive belt (8) into position.

9. Method according to claim 7 or 8, characterized in that in connection with placing the drive belt (8) into position the drive belt (8) is guided in the installation groove acting as the coupling element (14) onto the rim of the support element (10) essentially around the support element (10) .

10. Support element of the handrail belt (12) of the handrail

(13) of a travelator, moving walkway, escalator or similar, which support element is a supporting wheel (10) , characterized in that the supporting wheel (10) contains a coupling element

(14) for coupling and installing the drive belt (8) of the supporting wheel (10) onto the rim of the supporting wheel in connection with placing the drive belt (8) into position.

11. Support element according to claim 10, characterized in that the coupling element (14) is an installation groove extending essentially inwards from the rim of the supporting wheel (10) , to which installation groove the drive belt (8) is arranged to be fitted in connection with placing the drive belt

(8) into position.