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(11) | EP 2 290 184 B1 |
| (12) | EUROPEAN PATENT SPECIFICATION |
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| (54) |
Door closer housing Türschließergehäuse Boîtier d'un ferme-porte |
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| Note: Within nine months from the publication of the mention of the grant of the European patent, any person may give notice to the European Patent Office of opposition to the European patent granted. Notice of opposition shall be filed in a written reasoned statement. It shall not be deemed to have been filed until the opposition fee has been paid. (Art. 99(1) European Patent Convention). |
Field of technology
Prior art
[0002] Door closers often have a plastic housing that can be fitted to the door closer body with a snap-on coupling. The housing is installed simply by pushing it onto the door closer. Housing solutions also exist where the door closer housing is open at both ends, and the ends are covered with separate end pieces. WO 2005071204 illustrates such a solution.
[0003] A plastic housing is not appropriate for installation in some countries / regions, for example due to different regulations and other circumstances. For this reason, a metal housing with open ends has often been used in these regions. The ends are covered with separate plastic end pieces. Thus, such solutions correspond to the method illustrated in said WO publication.
[0004] EP 1727956 discloses a housing for a door closer having, for example, a metal cover with open ends. Caps are used for covering the open ends. The publication also shows an installation bracket to be installable on a mounting surface, such as a door, door frame, wall or the like. The door closer is installable between the installation bracket and the housing.
[0005] Grooves, cut-outs etc. are required for fitting the ends and the housing. Due to separate parts, the installation stage is more cumbersome than the installation of an ordinary plastic housing (that also covers the ends). It is relatively difficult to install the end pieces in practice because the tolerances are not generally very precise, the parts can be slightly distorted etc. A corner often remains slightly loose, and the parts do not fit neatly in place. The costs of manufacture become relatively high if effort is put into very precise and delicate production of the end pieces.
Short description of invention
[0006] The objective of the invention is to create a door closer housing that would eliminate the problems with a metallic open-ended housing. The objective will be achieved as described in the independent claim. The dependent claims describe various embodiments of the invention.
[0007] The invention comprises a plastic subframe arranged for fitting into the inside of a metal frame. The subframe comprises end pieces that fit into the ends of the metal frame. The subframe comprising the end pieces is easy to install. The subframe has fastening elements for fitting the subframe to the door closer body, and the metal housing comprises a second set of fastening elements for fitting the metal housing on the subframe.
List of figures
[0008] In the following, the invention is described in more detail by reference to the enclosed drawings, where
- Figure 1
- illustrates an example of a door closer housing according to the invention,
- Figure 2
- illustrates a cross-section of the metal frame according to the invention,
- Figure 3
- illustrates a cross-section of the subframe according to the invention, and
- Figure 4
- illustrates a door closer housing according to the invention with the metal frame over the subframe.
Description
[0009] Figure 1 illustrates an example of a door closer housing 1 according to the invention. The housing comprises an open-ended metal housing 2 and a plastic subframe 3. The subframe is arranged for fitting into the inside of the metal frame. The subframe comprises end pieces 4 that fit into the ends 5 of the metal frame 2, as well as a body part 6 connecting the end pieces together.
[0010] The subframe 3 has attachment elements 7 for attaching the subframe to the door closer body. Furthermore, the body part 6 of the subframe may have lightening holes 8. The subframe may also have reinforcement parts 9 to provide sufficient rigidity. The lightening holes 8, reinforcement parts 9 and/or changes to the wall thickness of the body part 6 can be used to keep the cost of the subframe 3 low/reasonable. The frame also has openings 10 for the door closer functions. The frame may also have openings 11 for the necessary fittings.
[0011] The metal housing 2 comprises specific attachment elements 12 for fitting the metal housing on the subframe 3. The metal housing also has provisions for openings 13 for the door closer functions. The metal housing may also have openings 14 for the necessary fittings.
[0012] Figure 2 illustrates a cross-section of the metal housing 2 shown in Figure 1. The cross-section shows said fastening elements 12 more clearly. In this embodiment, the fastening elements 12 are formed of the edges of the housing 2, which are bent inwards. Figure 3 illustrates a cross-section of the subframe 3 shown in Figure 1. The cross-section is taken at the position of said fastening elements 7 in the subframe. In this embodiment, the fastening elements 7 are inward-pointing projections of the frame, containing a recess/several recesses. The fastening elements in both the subframe and the metal housing can also be implemented in ways other than the example illustrated here.
[0013] The subframe 3 may be readily fitted into the metal frame 2 at the factory, in which case on-site installation of the housing onto the door closer will be similar to that of a plastic housing. Figure 4 illustrates a readily fitted combination. Installation may also be completely carried out at the installation site. Furthermore, an installation plate known from prior art can be used. An integrated plastic subframe comprising the ends is easy to install and manufacture. The installation result is neat because the corners do not remain loose.
[0014] It is evident from the embodiments presented above that an embodiment of the invention can be created using a variety of different solutions. It is evident that the invention is not limited to the examples mentioned in this text but can be implemented in many other different embodiments within the scope of the presented claims.
1. A door closer housing (1) comprising a metal housing (2) with open ends (5), wherein
the door closer housing (1) comprises an integrated plastic subframe (3) arranged
for fitting into the inside of the metal housing, said subframe comprising end pieces
(4) that fit into the ends of the metal housing, as well as a body part (6) connecting
the end pieces together, the subframe (3) having fastening elements (7) for fitting the subframe to the door
closer body, and the metal housing (2) comprising a second set of fastening elements
(12) for fitting the metal housing on the subframe (3).
2. A housing according to Claim 1, characterised in that the body part (6) has lightening holes (8).
3. A housing according to Claim 2, characterised in that the body part (6) has reinforcement parts (9).
1. Türschließergehäuse (1), das ein Metallgehäuse (2) mit offenen Enden (5) umfasst,
wobei das Türschließergehäuse (1) einen integrierten Kunststoff-Unterrahmen (3), der
angeordnet ist, um in das Innere des Metallgehäuses zu passen, wobei der Unterrahmen
Endstücke (4) umfasst, die in die Enden des Metallgehäuses passen, sowie einen Körperteil
(6) umfasst, der die Endstücke miteinander verbindet, wobei der Unterahmen (3) Befestigungselemente
(7) zum Einpassen des Unterrahmens an den Türschließerkörper aufweist, und das Metallgehäuse
(2) eine zweite Menge von Befestigungselementen (12) zum Einpassen des Metallgehäuses
an dem Unterrahmen (3) umfasst.
2. Gehäuse nach Anspruch 1, dadurch gekennzeichnet, dass der Köperteil (6) Erleichterungslöcher (8) aufweist.
3. Gehäuse nach Anspruch 2, dadurch gekennzeichnet, dass der Körperteil (6) Verstärkungsteile (9) aufweist.
1. Boîtier de ferme-porte (1) comprenant un boîtier en métal (2) avec des extrémités
ouvertes, dans lequel le boîtier de ferme-porte (1) comprend un sous-châssis en plastique
(3) intégré étudié pour le montage à l'intérieur du boîtier en métal, ledit sous-châssis
comprenant des pièces d'extrémité (4) qui se montent dans les extrémités du boîtier
en métal ainsi qu'une partie de corps (6) reliant les pièces d'extrémité entre elles,
le sous-châssis (3) ayant des éléments de fixation (7) pour monter le sous-châssis
sur le corps de ferme-porte, et le boîtier en métal (2) comprenant un deuxième jeu
d'éléments de fixation (12) pour monter le boîtier en métal sur le sous-châssis (3).
2. Boîtier selon la revendication 1, caractérisé en ce que la partie de corps (6) a des trous d'allégement (8).
3. Boîtier selon la revendication 2, caractérisé en ce que la partie de corps (6) a des parties de renforcement (9).
REFERENCES CITED IN THE DESCRIPTION
This list of references cited by the applicant is for the reader's convenience only. It does not form part of the European patent document. Even though great care has been taken in compiling the references, errors or omissions cannot be excluded and the EPO disclaims all liability in this regard.
Patent documents cited in the description