Battery-assisted safety circuit monitoring system
US-2015377968-A1 · Dec 31, 2015 · US
Elevator apparatus
US9637348B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9637348-B2 |
| Application number | US-201214380753-A |
| Country | US |
| Kind code | B2 |
| Filing date | Apr 16, 2012 |
| Priority date | Apr 16, 2012 |
| Publication date | May 2, 2017 |
| Grant date | May 2, 2017 |
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- Title
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Abstract
Official abstract text for this publication.
In an elevator apparatus, an abnormal acceleration detecting mechanism includes a mass body that operates in connection with movement of the car, the abnormal acceleration detecting mechanism operating a safety device using a force of inertia that is generated by the mass body if an acceleration that exceeds a predetermined set value arises in a car. A breakage detecting means detects breakage of a suspending means that suspends the car. A resistance force applying apparatus applies a resistance force to a mechanism for activating the safety device such that the resistance force is applied when breakage of the suspending means is not detected by the breakage detecting means and the resistance force is reduced if breakage of the suspending means is detected by the breakage detecting means.
First claim
Opening claim text (preview).
The invention claimed is: 1. An elevator apparatus comprising: a car; a suspending means that suspends the car; a driving apparatus that raises and lowers the car by means of the suspending means; a car guide rail that guides raising and lowering of the car; a safety device that is mounted onto the car, and that engages with the car guide rail to make the car perform an emergency stop; an abnormal acceleration detecting mechanism that includes a mass body that operates i…
Assignees
Inventors
Classifications
Operations & Transport · mapped topic
Operations & Transport · mapped topic
Operations & Transport · mapped topic
- B66B5/0031Primary
Operations & Transport · mapped topic
- B66B5/16Primary
Operations & Transport · mapped topic
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Frequently asked questions
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- What does patent US9637348B2 cover?
- In an elevator apparatus, an abnormal acceleration detecting mechanism includes a mass body that operates in connection with movement of the car, the abnormal acceleration detecting mechanism operating a safety device using a force of inertia that is generated by the mass body if an acceleration that exceeds a predetermined set value arises in a car. A breakage detecting means detects breakage …
- Who is the assignee on this patent?
- Okada Mineo, Mitsubishi Electric Corp
- What technology area does this patent fall under?
- Primary CPC classification B66B5/0031. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue May 02 2017 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 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).