The present disclosure is generally related to elevator safety systems and, more specifically, a housing assembly for a safety actuation device.
Some machines, such as an elevator system, include a safety system to stop the machine when it rotates or the elevator cab when it travels at excessive speeds in response to an inoperative component. In some instances, safety system components are attached to the car frame/support and are guided by the rails. During travel, there is a variation in the distance from the car frame to the rails. As such, the design of the power requirements for safety actuation has to account for the greatest distance variation, which leads to increased costs for the elevator system. There is therefore a need for a device to reduce the distance variation between the rail and the car frame.
In an embodiment, each of the at least one guide devices affixed to the first channel wall interior surface is positioned adjacent to each of the at least one guide devices affixed to the second channel wall interior surface.
In any embodiment of the housing assembly, the at least one guide device is removable. In any embodiment of the housing assembly, the at least one guide device includes a guide pad. In an embodiment, the guide pad includes a wear indicator disposed therein.
In another aspect, a housing assembly for a safety actuation device is provided. The housing assembly includes, a mounting plate including a proximal end and a distal end, a first channel wall and a second channel wall extending substantially perpendicular from the mounting plate, wherein the first channel wall is positioned substantially parallel to the second channel wall to form a channel therebetween, and a flange extending from at least one of the proximal end and the distal end, the flange including a slot disposed therein, wherein the slot is substantially aligned with the channel.
In an embodiment of this housing assembly, the housing assembly further includes at least one guide device affixed to the mounting plate. In an embodiment of this housing assembly, the at least one guide device comprises a first roller and a second roller, wherein the first roller is located adjacent to the second roller to form a gap therebetween, wherein the gap is positioned substantially aligned with the channel and the slot.
In any embodiment of this housing assembly, the mounting plate includes at least one aperture disposed therein, the at least one aperture configured for mounting said assembly. In any embodiment of this housing assembly, the mounting plate includes at least one elevator accessory affixed thereto.
In one aspect, an elevator system is provided. The elevator system includes an elevator rail, an elevator car frame an elevator car affixed to the elevator car frame, the elevator car is configured to travel along the elevator rail, and a housing assembly for a safety actuation device affixed to the elevator car. The housing assembly includes a mounting plate, a first channel wall and a second channel wall extending substantially perpendicular from the mounting plate, the first channel wall including a first channel wall interior surface, and the second channel wall including a second channel wall interior surface, wherein the first channel wall is positioned substantially parallel to the second channel wall to form a channel therebetween, and at least one guide device affixed to the first channel wall interior surface and the second channel wall interior surface; wherein the elevator rail is disposed within the channel.
In any embodiment of the elevator system, each of the at least one guide devices affixed to the first channel wall interior surface is positioned adjacent to each of the at least one guide devices affixed to the second channel wall interior surface. In any embodiment of the elevator system, the at least one guide device is removable. In an embodiment of the elevator system, the at least one guide device comprises a guide pad.
In one aspect, an elevator system is provided. The elevator system includes an elevator rail, an elevator car frame, an elevator car affixed to the elevator car frame, the elevator car is configured to travel along the elevator rail, and a housing assembly for a safety actuation device affixed to the elevator car. The housing assembly includes a mounting plate including a proximal end and a distal end, a first channel wall and a second channel wall extending substantially perpendicular from the mounting plate, wherein the first channel wall is positioned substantially parallel to the second channel wall to form a channel therebetween, and a flange extending from at least one of the proximal end and the distal end, the flange including a slot disposed therein, wherein the slot is substantially aligned with the channel.
An embodiment of this elevator system further includes at least one guide device affixed to the mounting plate. In an embodiment of this elevator system, the at least one guide device includes a first roller and a second roller, wherein the first roller is located adjacent to the second roller to form a gap therebetween, wherein the gap is positioned substantially aligned with the channel and the slot.
An embodiment of this elevator system further includes at least one aperture disposed within the mounting plate, the at least one aperture configured for mounting said assembly. An embodiment of this elevator system further includes at least one elevator accessory affixed to the mounting plate.
Other embodiments are also disclosed.
The embodiments and other features, advantages and disclosures contained herein, and the manner of attaining them, will become apparent and the present disclosure will be better understood by reference to the following description of various exemplary embodiments of the present disclosure taken in conjunction with the accompanying drawings, wherein:
For the purposes of promoting an understanding of the principles of the present disclosure, reference will now be made to the embodiments illustrated in the drawings, and specific language will be used to describe the same. It will nevertheless be understood that no limitation of the scope of this disclosure is thereby intended.
In the elevator system 10 shown in
In an embodiment, the mounting plate 42 includes at least one aperture 46 disposed therein for mounting the assembly 40 to the car frame 14. The apertures 46 on the mounting plate 42 and the fasteners fixed on the car frame 14 allow a safety actuation device 44A to be floating horizontally when there is position variation between the car 16 and the rail 20, which typically occurs during actuating and resetting the safeties 24, as well as an elevator normal run.
The assembly 40 further includes a first channel wall 48 including a first channel wall interior surface 50, and a second channel wall 52 including a second channel wall interior surface 54. The first channel wall 48 and the second channel wall 52 extend substantially perpendicular from the mounting plate 42, and the first channel wall 48 is positioned substantially parallel to the second channel wall 52 to form a channel 56 therebetween.
The assembly 40 further includes at least one guide device 58 configured to engage a component disposed within the channel 56. In an embodiment, the at least one guide device 58 includes at least one guide pad 58 affixed to the first channel wall interior surface 50 and the second channel wall interior surface 54. In an embodiment, the at least one guide pads 58 are removable for replacement and service purposes. In an embodiment, the at least one guide pad 58 is affixed to the first channel wall interior surface 50 and the second channel wall interior surface 54. It will be appreciated that the at least one guide pads 58 may be composed of a high weight, wear resistant plastic to name one non-limiting example.
In some embodiments, each of the at least one guide pads 58 is affixed to the first channel wall interior surface 50 and positioned adjacent to each of the at least one guide pads 58 affixed to the second channel wall interior surface 54. For example, in the embodiment shown, the guide pads 58A and 58B are disposed on the first channel wall interior surface 50 towards the ends, and the guide pads 58C and 58D are positioned along the second channel wall interior surface 54 substantially adjacent to the guide pads 58A and 58B, respectively. It will be appreciated that the guide pads 58 may also be formed from one piece of material and adjusted to accommodate for the elevator accessories 44.
In an embodiment, as shown in
As shown in
In another embodiment, as shown in
In the embodiment shown in
The first roller 58A is located adjacent to the second roller 58B to form a gap 60 therebetween, wherein the gap 60 is substantially aligned with the channel 56 and the slot 66. The third roller 58C is located adjacent to the fourth roller 58D to form a gap 61 therebetween, wherein the gap 61 is substantially aligned with the channel 56 and the slot 66. In another embodiment, the first roller 58A, second roller 58B, third roller 58C, and fourth roller 58D are removable for replacement and service purposes.
As shown in
It will therefore be appreciated that the present embodiments include a mounting assembly 40 having at least one guide device 58 disposed within channel 56, or alternatively at least one guide device 58 affixed to the mounting plate 42 to form gap 60 substantially aligned with the channel 56 to improve the performance of safety actuation and reset due to the minimized position variations between the car 16 and the rail 20. As a result, the power requirements for safety actuation is reduced, and effectively reducing the cost of the elevator system 10.
While the disclosure has been illustrated and described in detail in the drawings and foregoing description, the same is to be considered as illustrative and not restrictive in character, it being understood that only certain embodiments have been shown and described and that all changes and modifications that come within the spirit of the disclosure are desired to be protected.
The present application is an international patent application, which claims priority to Provisional Patent Application Ser. No. 62/258,028, filed Nov. 20, 2016, which is herein incorporated in its entirety.
Filing Document | Filing Date | Country | Kind |
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PCT/US2016/063184 | 11/21/2016 | WO | 00 |
Number | Date | Country | |
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62258028 | Nov 2015 | US |