Fire protection element

Patent metadata

Field	Value
Publication number	US-11850455-B2
Application number	US-201917309410-A
Country	US
Kind code	B2
Filing date	Nov 22, 2019
Priority date	Dec 10, 2018
Publication date	Dec 26, 2023
Grant date	Dec 26, 2023

Abstract

A fire protection element for sealing a combustible body which penetrates an opening in a wall or ceiling, in the event of a fire, contains a fire protection insert and a heat-activatable drive for the fire protection insert, wherein the fire protection insert is in an initial position within the wall or ceiling and, in the event of a fire, is moved into a use position in which the fire protection insert is at least partially outside the wall or ceiling.

First claim

The invention claimed is:

1. A fire protection element for sealing a combustible body which penetrates an opening in a wall or ceiling, in the event of a fire, the fire protection element comprising:
a fire protection insert, and
a heat-activatable drive for the fire protection insert,
wherein the fire protection insert is in an initial position within the wall or ceiling and, in the event of a fire, is moved by the heat-activatable drive into a use position in which the fire protection insert is at least partially outside the wall or ceiling; and
wherein the heat-activatable drive comprises a spring, a bimetal and/or an expandable gas as the drive element.

2. The fire protection element according to claim 1 , wherein the heat-activatable drive comprises a housing and a retaining element connected to the housing, and at least one spring arranged in the housing, the retaining element holding the spring under pretension when in the initial position.

3. The fire protection element according to claim 2 , wherein the retaining element comprises at least partially a material having a low melting point, or a soft solder.

4. The fire protection element according to claim 2 , wherein the heat-activatable drive comprises a carrier on which the fire protection insert is mounted.

5. The fire protection element according to claim 4 , wherein the retaining element has axially or radially projecting tongues which hold the carrier in the starting position in the housing.

6. The fire protection element according to claim 5 , wherein the housing has one or more recesses or tabs, in which the tongues engage.

7. The fire protection element according to claim 4 , wherein the carrier interacts with at least one spring arranged in the housing and holds the spring under pretension when in the initial position.

8. The fire protection element according to claim 4 , wherein at least one projection is provided on the carrier, and wherein the housing has at least one recess, in which the projection is guided, the projection holding the carrier in the housing when the fire protection insert is moved into the use position.

9. The fire protection element according to claim 1 , wherein the fire protection insert has a fire protection material selected from the group consisting of intumescent materials, fire protection coatings, fire protection foams, and ablative coatings.

10. The fire protection element according to claim 1 , further comprising a smoke protection seal.

11. The fire protection element according to claim 1 , wherein the fire protection insert and the heat-activatable drive are each constructed from a plurality of parts, such that the parts of the fire protection insert can be moved independently of one another from the initial position into the use position.

12. The fire protection element according to claim 1 , which is flush with the wall or ceiling in the initial position of the fire protection insert.

13. A fire protection device, comprising:
two fire protection elements according to claim 1 ,
wherein the two fire protection elements are arranged symmetrically with respect to the center of the opening of the wall or ceiling.

14. A fire protection element for sealing a combustible body which penetrates an opening in a wall or ceiling, in the event of a fire, the fire protection element comprising:
a fire protection insert, and
a heat-activatable drive for the fire protection insert,
wherein the fire protection insert is in an initial position within the wall or ceiling and, in the event of a fire, is moved by the heat-activatable drive into a use position in which the fire protection insert is at least partially outside the wall or ceiling; and
wherein the heat-activatable drive comprises a housing and a retaining element connected to the housing, and at least one spring arranged in the housing, the retaining element holding the spring under pretension when in the initial position.

15. A fire protection device, comprising:
two fire protection elements according to claim 14 ,
wherein the two fire protection elements are arranged symmetrically with respect to the center of the opening of the wall or ceiling.

16. The fire protection element according to claim 14 , wherein the retaining element comprises at least partially a material having a low melting point, or a soft solder.

17. The fire protection element according to claim 14 , wherein the heat-activatable drive comprises a carrier on which the fire protection insert is mounted.

18. The fire protection element according to claim 17 , wherein the retaining element has axially or radially projecting tongues which hold the carrier in the starting position in the housing.

19. The fire protection element according to claim 14 , wherein the housing has one or more recesses or tabs, in which the tongues engage.

20. The fire protection element according to claim 17 , wherein the carrier interacts with the at least one spring arranged in the housing and holds the spring under pretension when in the initial position.

Assignees

• Hilti Ag

Inventors

• Ahlers Andreas
• Simon Sebastian

Classifications

• A62C2/065 Primary

  having as the main closure device materials, whose characteristics undergo an irreversible change under high temperatures, e.g. intumescent · CPC title

• A62C2/241

  having mechanical actuators and heat sensitive parts · CPC title

• A62C2/248

  pneumatic · CPC title

• F16L5/04

  to form a firebreak device · CPC title

• A62C2/242

  with fusible links · CPC title