PULLING ELEMENT FOR PULLING A CLOSING ELEMENT OUT OF A FILTER OF AN ESCAPE FILTER DEVICE, ESCAPE FILTER DEVICES, ESCAPE FILTER DEVICE SYSTEM AND METHOD FOR MOUNTING AN ESCAPE FILTER DEVICE SYSTEM

• US 20160059052A1
• Filed: 02/15/2014
• Published: 03/03/2016
• Est. Priority Date: 04/02/2013
• Status: Active Grant

• Current Assignee: Draeger Safety Incorporated (Dragerwerk AG)
• Original Assignee: Draeger Safety Incorporated (Dragerwerk AG), Joachim Radicke, Michael Rosert, Rudiger Muller, Simon Vogt
• Inventors: ROSERT, Michael, VOGT, Simon, MLLER, Rdiger, RADICKE, Joachim
• Granted Patent: US 10,441,829 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: A62B 17/04 Hoods
• CPC Class Codes: A62B 18/00 Breathing masks or helmets, e.g. affording protection against chemical agents or for use at high altitudes or incorporating a pump or compressor for reducing the inhalation effortA62B17/00 takes precedence; anaesthetic masks A61M16/06
• CPC Class Codes: A62B 23/00 Filters for breathing-protection purposes gas-filters in general B01D
• CPC Class Codes: A62B 25/00 Devices for storing or holding or carrying respiratory or breathing apparatus
• CPC Class Codes: A62B 7/10 with filter elements
• CPC Class Codes: B66F 19/00 Hoisting, lifting, hauling or pushing, not otherwise provided for

Abstract

A pulling element is provided for automatically pulling a closing element out of a filter of an escape filter device. An escape filter device is also provided that has a hood and a filter integrated into the hood, with at least one such pulling element. An escape filter device system is also provided having such an escape filter device and a device shell. A method is provided for mounting an escape filter device system.

Claims

1. A pulling element for pulling a closing element out of a filter of an escape filter device, which is arranged in a device shell in a resting position with a resting distance to the device shell, wherein the escape filter device can be moved into a removal position with an increased removal distance to the resting distance, the pulling element comprising:

a first fastening section for fastening the pulling element to the closing element; and

a second fastening section for fastening on an inner side of the device shell, wherein the two fastening sections have a fastening distance to one another, which is smaller than or equal to the removal distance.

2. A pulling element in accordance with claim 1, wherein the pulling element is flexible.

3. A pulling element in accordance with claim 1, wherein the pulling element is flexible.

4. A pulling element in accordance with claim 1, wherein at least one of the first fastening section and the second fastening section comprises a snap-in element.

5. A pulling element in accordance with claim 1, wherein at least one of the first fastening section and the second fastening section comprises flexible barbs.

6. A pulling element in accordance with claim 1, further comprising a stopping element between the first fastening section and the second fastening section.

7. A pulling element in accordance with claim 1, further comprising at least one of a mounting control element and a gripping element at one end of the pulling element.

8. An escape filter device comprising:

a hood;

a filter, which has a filter inlet side and a filter outlet side, integrated into the hood;

a first closing element;

a second closing element; and

a pulling element, wherein the filter inlet side is closed in a gas-tight manner by means of the first closing element and the filter outlet side is closed in a gas-tight manner by means of the second closing element, wherein the pulling element, for pulling out the respective closing element from the filter, is arranged on at least one closing element, wherein the filter is arranged in a device shell in a resting position with a resting distance to the device shell, wherein the escape filter device can be moved into a removal position with an increased removal distance to the resting distance, the pulling element comprising;

a first fastening section for fastening the pulling element to the closing element; and

a second fastening section for fastening on an inner side of the device shell, wherein the two fastening sections have a fastening distance to one another, which is smaller than or equal to the removal distance.

9. An escape filter device in accordance with claim 8, further comprising another pulling element, wherein each closing element is coupled with a pulling element and each pulling element has a pulling element fastening device.

10. An escape filter device system, comprising:

an escape filter device comprising;

a hood;

a filter, which has a filter inlet side and a filter outlet side, integrated into the hood;

a first closing element;

a second closing element; and

at least one pulling element, wherein the filter inlet side is closed in a gas-tight manner by means of the first closing element and the filter outlet side is closed in a gas-tight manner by means of the second closing element, wherein the pulling element is for pulling at least one of the closing elements from the filter, the pulling element comprising a first fastening section for fastening the pulling element to one of the closing elements and a second fastening section for fastening on an inner side of the device shell, wherein the two fastening sections have a fastening distance to one another, which is smaller than or equal to a removal distance; and

a device shell, in which the escape filter device can be arranged in a resting position and which can be opened for transferring the escape filter device into a removal position; and

a pulling element holding device arranged on an inner side of the device shell for fastening the second fastening section, wherein the at least one pulling element and the at least one pulling element holding device are designed and coordinated with one another such that the at least one closing element is automatically pulled out of the filter during the opening of the device shell upon reaching the removal distance between the device shell and the escape filter device.

11. An escape filter device system in accordance with claim 10, wherein the device shell has a device shell bottom side and a device shell top side, which are pivotably connected to one another, wherein the at least one pulling element holding device is arranged at least one of on the device bottom side and on the device shell top side.

12. An escape filter device system in accordance with claim 10, wherein the device shell bottom side and the device shell top side are designed as hard components.

13. An escape filter device system in accordance with claim 10, further comprising guides on the inner side of the device shell for guiding the pulling elements.

14. An escape filter device system in accordance with claim 11, wherein the device shell has a closing element for closing and opening the device shell, especially for closing and opening the device shell bottom side and the device shell top side.

15. An escape filter device system in accordance with claim 12, further comprising a spring element arranged on the inner side of the device shell that presses with a spring action against the inner sides of the device shell bottom side and of the device shell top side with the device shell being closed.

16. An escape filter device system in accordance with claim 10, further comprising a retaining device for retaining the escape filter device.

17. A method for mounting an escape filter device system the method comprising the steps of:

providing an escape filter device comprising a hood, a filter, which has a filter inlet side and a filter outlet side, integrated into the hood, a first closing element, a second closing element, a first and second pulling element, each pulling element comprising a first fastening section for fastening the pulling element to the closing element and a second fastening section for fastening on an inner side of the device shell, wherein the two fastening sections have a fastening distance to one another, which is smaller than or equal to a removal distance;

providing a device shell, in which the escape filter device can be arranged in a resting position and which can be opened for transferring the escape filter device into a removal position;

providing a pulling element holding device arranged on an inner side of the device shell for fastening the second fastening section, wherein the at least one pulling element and the at least one pulling element holding device are designed and coordinated with one another such that the at least one closing element is automatically pulled out of the filter during the opening of the device shell upon reaching the removal distance between the device shell and the escape filter device;

fastening the first fastening section of the first pulling element to the first closing element;

fastening the second fastening section of the first pulling element to a first position on the inner side of the device shell;

fastening the first fastening section of the second pulling element to the second closing element;

closing the device shell until reaching a mounting position for fastening the second fastening section on the inner side of the device shell, wherein the device shell is not yet completely closed in the mounting position, and

fastening the second fastening section of the second pulling element at a second position on the inner side of the device shell; and

closing the device shell completely.

18. A method in accordance with claim 17, wherein:

at least one pulling element is designed as a flexible pulling element;

the first fastening section of the at least one pulling element is designed as a first barb and that the second fastening section of the at least one pulling element is designed as a second barb on the at least one pulling element;

at least one closing element has a pulling element fastening device with an opening; and

a first end of a pulling element is pulled through the opening of the pulling element fastening device of a closing element until the first barb is pulled through the opening of the pulling element fastening device and subsequently the second end of the same pulling element is pulled through the opening of a pulling element holding device for creating the fastening distance until the second barb of this pulling element is pulled through the opening of this pulling element holding device.

19. A method in accordance with claim 18, wherein at least one of the pulling elements has a stopping element between its barbs, wherein after the pulling of the second barb of the at least one pulling element through the corresponding pulling element holding device on the inner side of the device shell, the stopping element stops at the pulling element holding device and prevents a further pulling of this pulling element through the opening of the pulling element holding device.