Elevator installation roller with restraining element
US-2017081151-A1 · Mar 23, 2017 · US
Elevator system
US9884748B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9884748-B2 |
| Application number | US-201415038782-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 16, 2014 |
| Priority date | Dec 17, 2013 |
| Publication date | Feb 6, 2018 |
| Grant date | Feb 6, 2018 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
An elevator system includes a suspension traction device guided over at least one pulley and at least one counter pulley located adjacent to the pulley. The suspension traction device is guided between the pulley and the at least one counter pulley.
First claim
Opening claim text (preview).
The invention claimed is: 1. An elevator system including a suspension traction means guided over a pulley, wherein the pulley is driven by the suspension traction means, and at least one counter pulley located adjacent to the pulley, wherein the suspension traction means is guided between the pulley and the at least one counter pulley, comprising: the counter pulley having a central section with a first diameter and at least one side wall with a second diameter larger than the first diameter, wherein the suspension traction means is not in contact with the counter pulley when the suspension traction means is correctly guided over the pulley. 2. The elevator system according to claim 1 wherein the central section has a first width and the pulley has a second width, a ratio of the second width to the first width being between 1 and 1.8, preferably 1.125. 3. The elevator system according to claim 2 wherein the ratio of the second width to the first width is 1.125. 4. The elevator system according to claim 1 wherein a difference between the first diameter and the second diameter is greater than or equal to 4 cm. 5. The elevator system according to claim 4 wherein the difference between the first diameter and the second diameter is 6.2 cm. 6. The elevator system according to claim 1 wherein the pulley is a car pulley. 7. The elevator system according to claim 1 including another counter pulley located adjacent to the pulley. 8. The elevator system according to claim 1 wherein the suspension traction means is belt shaped. 9. The elevator system according to claim 1 wherein the suspension traction means is made of a plastic material. 10. The elevator system according to claim 1 wherein the pulley has a central portion, over which the suspension traction means is driven, with at least one of circumferential grooves, axial grooves, indentations and surface structuring. 11. The elevator system according to claim 1 including a sensor for detecting movement of at least one of the counter pulley and the pulley. 12. The elevator system according to claim 11 including a control unit for stopping the elevator system in response to detection of movement of the counter pulley by the sensor. 13. The elevator system according to claim 1 wherein the counter pulley has an axis of rotation, whereby a position of the axis is alterable.
Assignees
Inventors
Classifications
- B66B15/04Primary
Friction sheaves; "Koepe" pulleys · CPC title
Rope or cable carriers · CPC title
- B66B11/0065Primary
Roping (mining hoist B66B15/08) · CPC title
Belts · CPC title
Devices monitoring the operating condition of the elevator system · CPC title
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Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US9884748B2 cover?
- An elevator system includes a suspension traction device guided over at least one pulley and at least one counter pulley located adjacent to the pulley. The suspension traction device is guided between the pulley and the at least one counter pulley.
- Who is the assignee on this patent?
- Inventio Ag
- What technology area does this patent fall under?
- Primary CPC classification B66B15/04. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Feb 06 2018 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 3 related publications on this page (citations in our corpus or others sharing the same primary CPC).