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door operator

A door operator and piston technology, applied in door/window fittings, switches with braking devices, buildings, etc., can solve the problems of expensive support and guidance, achieve simple cost, increase the guide length, and be suitable for production.

Active Publication Date: 2021-02-02
DORMAKABA DEUT GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the known prior art, the mounting and in particular the axial guidance of the roller housing with the pressure rollers within the piston is complex.

Method used

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Embodiment Construction

[0040] exist figure 1 The door operator 1 shown in is explained in the following description only as relevant in the present case.

[0041] The door operator, which can be, for example, a door closer with cam technology, has a housing 2 in which a piston 3 is mounted also longitudinally displaceable. exist figure 1 In the embodiment shown in , there are two pistons 3 , but the pistons are essentially identically constructed. The pistons 3 are each loaded by a spring 4 which presses them in the direction of a cam disk 5 which is fixed on a pivot axis 6 for the door lever.

[0042] The first embodiment of the piston 3 is in Figures 2 to 4 shown in detail.

[0043] The piston 3 is formed from a deep-drawn or reverse-drawn sheet metal, which is formed in the shape of a cup or pot and has a base 3 a and a circumferential wall 3 b.

[0044] Arranged in the piston 3 is a roller frame 7 which carries a pressure roller 8 . The roller frame 7 is substantially U-shaped with free l...

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PUM

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Abstract

The invention relates to a door operator with a housing and at least one piston guided linearly in the housing, in which a roller frame is arranged, the roller frame having a pressure roller mounted so that it can be rotatably moved, wherein The piston is formed as a deep-drawn component and has a base and a circumferential wall. In order to realize a door operator of the type mentioned at the outset, wherein it is possible to support and in particular axially guide the roller frame with the pressure roller inside the piston simply and cost-effectively, it is proposed according to the invention that in the base (3a) a There is a cutout (10) through which the pressure roller (8) protrudes outwardly beyond the bottom (3a) of the piston (3).

Description

technical field [0001] The invention relates to a door operator with a housing and at least one piston guided linearly in the housing, in which a roller frame is arranged, the roller frame having a pressure roller mounted so as to be rotatably movable, wherein The piston is formed as a deep-drawn component and has a base and a circumferential wall. Background technique [0002] Such door operators are known. In the door operator, the piston is formed from a deep-drawn component with a base and a circumferential wall. A roller frame is arranged in the piston, said roller frame carrying the pressure roller. In this case, the roller housing with the pressure rollers is inserted into the piston from the open side opposite the base, so that the pressure rollers protrude outwards beyond the open side of the piston. [0003] In the known prior art, the mounting and in particular the axial guiding of the roller housing with the pressure rollers within the piston is complex. Con...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E05F3/04
CPCE05F3/04E05F3/10E05F3/104E05F3/16E05F3/18
Inventor 沃尔克·比内克亚历山大·黑尔维希
Owner DORMAKABA DEUT GMBH