Variable elevator shaft door frame

Abstract

Variable elevator shaft door frame (1) for installation on an elevator shaft in the area of ​​the elevator shaft door, with at least one first front component (2) in the form of a frame (20) and with at least one second rear component (3) in the form of a frame, wherein the first component (2) and the second component (3), in particular in the installation position, interlock in forming an engagement, characterized in that the front component (2) and the rear component (3) can be moved at least sectionally relative to each other while maintaining the engagement.

Description

[0001] The present invention relates to a variable elevator shaft door frame for installation in an elevator shaft in the region of the elevator shaft door, with at least a first front component in the form of a frame and with at least a second rear component in the form of a frame, wherein the first and the second component, in particular in the installed position, engage with each other to form an engagement, according to the preamble of claim 1, as well as to a kit for assembling the elevator shaft door frame according to the invention according to claim 8.

[0002] A wide variety of door frames for residential and industrial applications are available today. Elevator shaft door frames are unique pieces that must be adapted to the installation location on site, i.e., to an elevator shaft door in an elevator shaft.

[0003] For example, DE 201 06 444 U1 discloses a variable door frame designed for use with different door leaf dimensions. Different door leaf dimensions within the meaning of DE 201 06 444 U1 refer to different material thicknesses of the door leaf. The different material thicknesses of the door leaf can be adapted by means of a groove formed in the lining part in the area of ​​the door opening, in conjunction with a leg of the lining part that engages in the groove.

[0004] The disadvantage of existing door frames is that they are not suitable for use as elevator shaft door frames. The disadvantage of state-of-the-art elevator shaft door frames is that they must be adapted to the on-site installation situation. This means that the installation situation must be measured in order to manufacture the elevator shaft door frame according to these dimensions, and then install it after production. Disclosure of the invention

[0005] The object of the invention is to at least partially improve the elevator shaft door frames known from the prior art. In particular, the object of the present invention is to design a completely new elevator shaft door frame that can be delivered to the installation site without requiring prior measurements at the installation site and can be adapted to the installation situation on-site.

[0006] The above object is achieved by a variable elevator shaft door frame having the features of the claim and by a kit for assembling the elevator shaft door frame according to the invention having the features of claim 8.

[0007] For the purposes of the present application, a “lift shaft door frame” is to be understood specifically as a frame that is suitable for installation in the area of ​​a lift shaft door, which is why the term “lift shaft door frame” is to be understood restrictively.

[0008] Further advantages, features and details of the invention emerge from the subclaims, the description and the drawings.

[0009] The variable elevator shaft door frame according to the invention for installation in an elevator shaft in the area of ​​the elevator shaft door, with at least one first front component in the form of a frame and with at least one second rear component in the form of a frame, wherein the first and the second component, in particular in the installed position, engage with each other to form an engagement, The technical teaching includes that the front component and the rear component can be moved relative to each other at least in sections while maintaining the engagement.

[0010] For the purposes of the present invention, an "elevator shaft door frame" refers to a frame for elevator portals. The elevator shaft door frame, as defined in the present invention, comprises a surrounding frame, often referred to as a door casing, which encloses the wall opening on three sides. The elevator shaft door frame can also be designed as a block frame with a compact cross-section, which is differentiated as follows depending on the installation position: - Block frame, which is mounted in the door jamb and fills its entire width; - stock frame; which is also mounted in the door jamb, but is not as wide as this, and - Frame casing, which is mounted in front of the wall opening, among other things.

[0011] In general, the variable elevator shaft door frame according to the invention should be designed to form a clean seal between the elevator door and the masonry surrounding the elevator door.

[0012] For the purposes of the present invention, an elevator shaft door is understood to mean a door for a passenger elevator, a freight elevator, or a lift. The elevator shaft can be designed as an external elevator shaft or as a shaft within a building. For the purposes of the present invention, an elevator shaft also includes elevator systems in which cabins are guided along a rail system. The elevator shaft or rail system generally serves to transport a cabin, a car, or a platform vertically or diagonally between two or more levels via the shaft or rail system, with the shaft or rail system connecting the levels to one another. Accordingly, the elevator shaft door frame according to the invention is used in a passenger elevator, a freight elevator, or a lift.

[0013] In contrast to the elevator shaft door frames known from the prior art, which must be manufactured as one-off pieces adapted to the installation situation, whereby the installation site must first be visited to create a survey, in order to then create the elevator shaft door frame in a subsequent step based on the specific survey, the variable elevator shaft door frame according to the invention can be delivered directly to the installer and adapted on-site to the installation situation. According to the invention, the variable elevator shaft door frame according to the invention is adapted in that it is constructed from at least two components that are movable relative to one another and engage with one another, which allow movement either at least in a linear direction or in combination with a twisting or torsion within a specific angular range relative to one another while maintaining the engagement.The front component of the variable elevator shaft door frame according to the invention preferably forms the front end in the form of a cover frame, which is fixed to or connected to the wall surface lying in front of the elevator shaft, which wall surface encompasses the reveal or wall or ceiling opening of the elevator shaft in the region of the elevator shaft door. According to the invention, the front component in the form of the cover frame extends at least in sections over the reveal in the direction of the elevator shaft. The rear component advantageously encompasses the elevator shaft door directly at the elevator shaft. The rear component also extends at least in sections over the reveal, but in the direction of the front component, so that the front and rear components interlock with one another via the mutually facing sections within the reveal of the elevator shaft in the region of the elevator shaft door, forming an engagement.In the area of ​​the engagement, the two sections of the front and rear components overlap in such a way that the reveal is lined by the front and rear components. The reveal is lined with the variable elevator shaft door frame according to the invention even in an installation situation in which, for example, the reveal is not uniformly designed, or the wall opening is not congruent with the elevator shaft door. Furthermore, the variable elevator shaft door frame according to the invention can compensate for a wall surface in the area of ​​the wall opening that is unevenly plastered across its height by installing the front and rear components at an angle to one another, adapted to the installation situation.

[0014] Advantageously, the first and second components are U-shaped, each with two vertical legs and one horizontal leg. The vertical legs are used to attach to the posts of the wall opening, and the horizontal leg is used to attach to the upper boundary, the lintel, of the wall opening. The sections of the legs that extend from the front component to the rear component and vice versa, converging and interlocking, are advantageously used in the form of a lining frame to line the reveal of the wall opening.

[0015] Preferably, the variable elevator shaft door frame according to the invention is constructed with mirror symmetry, which simplifies production in accordance with the common-part strategy and, on the other hand, reduces manufacturing costs. For example, if the front component and the rear component each comprise three parts, namely two vertical legs and one horizontal leg, which can be assembled to form a U-shaped component, the vertical legs are advantageously designed such that they are interchangeable with one another with respect to the first component or the second component.

[0016] Advantageously, the front first component comprises a double wall, at least in sections, on the sections of the vertical legs and the horizontal leg directed towards the rear second component. The double wall forms an overlap in the form of an insert, into which the rear component can engage via the sections directed towards the first component and can be displaced at least in sections. Of course, the insert in the form of the double wall can also be encompassed by the rear component conversely, in which case the first component can be pushed into the insert formed in the rear component via the sections directed towards the rear component in order to be connected to the front component in the form of an engagement. It is also conceivable to push the mutually directed sections of the two components into one another in an overlapping manner without forming an insert on one of the components.However, this design has the disadvantage compared to the design with an insert that a guide, such as that formed by the insert, is not present, which in turn has the disadvantage that the sections of the two components facing each other must be connected to each other after being pushed together by fastening means such as screws or rivets or by means of a material connection, which means that readjustment is impossible.

[0017] The length of the insertion preferably allows a displacement of the rear component relative to the front component while maintaining the engagement of + / - 6 cm, wherein in this embodiment the front material of the double wall, designed as a visible surface in the reveal, extends over a total length of at least 6 cm in the section of the front or rear component. Even more preferably, the rear component is displaceable relative to the front component by + / - 4.5 cm while maintaining the engagement, whereby the usual depths of reveals, which are largely determined by the wall thickness in which the wall opening for the elevator shaft door is provided, are covered over the range of + / - 4.5, so that the variable elevator shaft door frame according to the invention can be universally adapted to the usual installation situations.In general, the design of the insert, which allows the front and rear components to engage, allows the two components to be telescopically adjusted relative to each other. This telescopic adjustment of the two components while maintaining the engagement also ensures that the two facing sections of the first and second components always form a complete visible surface in the reveal area, thus avoiding the need for rework, for example, by lining a joint between the two components.

[0018] In the context of the present invention, “in the installation position” is understood to mean the installation of the variable elevator shaft door frame according to the invention at the installation location, adapting it to the installation situation.

[0019] A further aspect of the present invention is a kit for assembling a variable elevator shaft door frame according to the invention. The kit advantageously comprises two vertical legs and one horizontal leg each for the front component and for the rear component. The vertical legs and the horizontal legs preferably comprise a frame section for attachment to a wall or to the elevator shaft door and a section extending orthogonally from the frame section, which serves to line the reveal. Advantageously, at least the vertical legs of the front and rear components are designed according to a common parts strategy so that they can be interchanged. The parts of the front and rear components can be delivered pre-assembled to the installation site or they can be assembled at the installation site.The parts are advantageously connected to one another by at least a force-locking or positive connection, for example, using fastening elements such as screws or rivets. The parts of the front and rear components can also be connected to one another by a material connection, for example, by welding or adhesive bonding, in addition to the at least force-locking or positive connection.

[0020] In general, for the joining techniques mentioned for the assembly of the first component and the second component between the horizontal leg and the vertical legs, other joining techniques such as a tongue and groove joint in the form of a bung, such as a tongue, prong, dovetail joint or tenon with a negative shape designed relative to it in the part to be joined should also be mentioned.

[0021] Finally, a further aspect of the present invention is a method for assembling an elevator shaft door frame in the area of ​​an elevator shaft door on an elevator shaft using the variable elevator shaft door frame according to the invention. Unlike what is known from the prior art, the assembly of the variable elevator shaft door frame according to the invention does not require the step of pre-measuring the installation situation at the installation site in order to have an elevator shaft door frame adapted to the installation situation manufactured based on the measurements. Rather, the variable elevator shaft door frame according to the invention can be manufactured in series production and adapted to the installation situation on-site.Overall, compared to the elevator shaft door frames known from the prior art, which can be manufactured after measurement and only installed at the installation site after their manufacture, the variable elevator shaft door frame according to the present invention can generate a time advantage of up to 5 weeks.

[0022] Preferably, the variable elevator shaft door frame according to the invention is delivered as a kit or pre-assembled at its installation site. Once the rear second and front first components have been assembled or have been delivered pre-assembled, in a first step, the second rear component of the elevator shaft door frame is arranged on the elevator shaft around the elevator shaft door, with the sections orthogonal to the frame section of the rear component facing away from the elevator shaft door in the reveal of the wall opening.In a subsequent step, the front first component of the elevator shaft door frame, with the sections of the vertical legs and the horizontal leg directed towards the rear second component and towards the elevator shaft door, is pushed, at least in sections, over the sections of the vertical legs and the horizontal leg of the second component that are orthogonal to the frame section of the rear component by means of the double wall, each designed with an overlap in the form of an insert, thereby forming an engagement. Due to the engagement formed between the first and the second component, the reveal of the wall opening is completely lined by the variable elevator shaft door frame through the mutually aligned sections that are orthogonal to the frame sections.

[0023] In a further step, the first and second components are aligned relative to one another according to the specifications of the installation position, whereby the engagement of the first component with the second component is maintained. Once the two components have been adjusted to the installation position, the first component is fixed to the wall surface of the wall opening facing this component, for example by gluing or screwing it to the wall surface. For a visually appealing solution, the front component, which comprises the frame casing that is mounted in front of the wall opening, is materially bonded to the wall surface. The ability of the first component to move relative to the second component - whereby this ability to move also includes rotating the two components relative to one another - ensures that the materially bonded connection with the front component is always achieved across the entire surface, even if the wall surface is not flat.

[0024] In order to avoid repetitions regarding the advantages of the kit according to the invention or the method according to the invention, reference is made to the description of the advantageous embodiments of the variable elevator shaft door frame according to the invention and the disclosure by this description is fully incorporated and vice versa. Preferred embodiments:

[0025] Further measures improving the invention are presented in more detail below with the description of preferred embodiments of the invention with reference to the figures. The features mentioned in the claims and in the description may be essential to the invention individually or in any combination. It should be noted that the embodiments illustrated in the figures are merely descriptive and are not intended to limit the invention in any way.

[0026] They show: Fig. 1 a variable elevator shaft door frame according to the invention in a perspective view obliquely from the front of the front first component forming the frame of the frame, which is in engagement with the rear second component via mutually aligned sections, in an initial position; Fig. 2 the variable elevator shaft door frame according to the invention from Fig. 1 in maximum full extension position between the first front and the second rear component, in perspective view obliquely from the front of the first component forming the frame of the casing; Fig. 3 the variable elevator shaft door frame according to the invention from the previous figures with the first front component displaced on one side and pivoted twice relative to the second rear component, in a perspective view obliquely from the front onto the front first component forming the frame of the frame; Fig. 4 shows the variable elevator shaft door frame according to the invention from the previous figures with the first front component displaced on one side in full extension towards the second rear component, in a perspective view obliquely from the front onto the front first component forming the frame of the frame; and Fig. 5 a detailed view as a sectional view from above along the line SS of the variable elevator shaft door frame according to the invention through the front and rear vertical legs, in a half-extended position.

[0027] In the different figures, identical parts are always provided with the same reference symbols, which is why they are usually only described once.

[0028] The Fig. Figure 1 shows an embodiment of a variable elevator shaft door frame 1 according to the invention in a perspective view obliquely from the front of the front first component 2, which forms the outer frame 20 of the frame 1 and engages with the rear second component 3 via mutually aligned sections 2.1 and 3.1, in an initial position. The front component 2 and the rear component 3 each comprise two vertical legs 2.2, 2.3 and 3.2, 3.3 and one horizontal leg 2.4 and 3.4, of which sections 2.1 and 3.1 run orthogonally to each other. The vertical legs 2.2, 2.3 and 3.2, 3.3 and the horizontal legs 2.4 and 3.4 are designed with their sections 2.1 and 3.1 as individual components, which are connected to one another to form a U-profile. In the present starting position, the rear second component 3 is fully inserted into the front first component 2, whereby the second component 3 is connected to the section 3.1 into the insert 30 designed as a double wall or engagement (see . Fig. 5) of section 2.1 engages or is inserted into it. The dashed line in sections 2.1 and 3.1 on the vertical legs 2.2, 3.2, 2.3, 3.3 and in sections 2.1 and 3.1 on the horizontal legs 2.4 and 3.4 represents the front edge of section 3.1. The frame is constructed axially symmetrically with respect to the vertical legs 2.2, 2.3 and 3.2, 3.3 by vertical axis reflection on the symmetry axis XX. In accordance with the common parts strategy, the vertical legs 2.2 and 2.3 and the vertical legs 3.2 and 3.3 are constructed identically and are therefore interchangeable. From the initial position shown in the figure, the first front component 2 can be moved relative to the rear second component 3 while maintaining the engagement between the first component 2 and the second component 3 to the position shown in the Fig. 2 can be moved or telescoped to the maximum full extension position shown in order to be able to variably adapt to the depth of a reveal of a wall opening.

[0029] The Fig. 2 shows the variable elevator shaft door frame 1 according to the invention from Fig. 1 in maximum extension position between the first front component 2 and the second rear component 3, in a perspective view obliquely from the front onto the front first component 2 forming the frame 20 of the casing. The continuous line of sight 40 lying parallel to the broken line is the only indication that the variable elevator shaft door casing 1 according to the invention is assembled from a first front component 2 and a second rear component 3, wherein in the present case the second rear component 3 extends over the section 3.1 into the section 2.1 in the area of ​​the insertion 30 (see Fig. 5) of the front component 2 is pushed.

[0030] The Fig. Figure 3 shows the variable elevator shaft door frame 1 according to the invention from the previous figures, with the first front component 2 displaced on one side and pivoted twice relative to the second rear component 3, in a perspective view obliquely from the front of the front first component 2, which forms the frame 20 of the frame. While the leg 2.2 of the first front component 2 is aligned parallel to the leg 3.2 of the second rear component 3, the horizontal legs 2.4 and 3.4 taper towards each other towards the rear, as shown in the figure. The vertical leg 3.3, on the other hand, tapers from bottom to top towards the leg 2.3. This movement of the front component 2 relative to the rear component 3 always takes place according to the invention while maintaining the engagement between the first component 2 and the second component 3.The movement of the first component 2 relative to the second component 3 can be specified based on the length of the engagement 30. If, for example, the length of the insertion 30 allows a displacement of the first component 2 relative to the second component 3 by + / - 4.5 cm while maintaining the engagement, the two components 2 and 3 can be pivoted or at least partially rotated relative to each other within an angular range of 0° to + / - 55° around the virtual axes XX and HH while maintaining the engagement.

[0031] The Fig. 4 shows the variable elevator shaft door frame 1 according to the invention from the previous figures with the first front component 2 displaced on one side in the fully extended position relative to the second rear component 3. The legs 2.2 and 3.2 are between the Fig. 1 shown starting position and the one in Fig. 2. In contrast, the legs 2.3 and 3.3 are in a full extension position as shown in the figure. In order to compensate for the difference between the extension positions of the legs 2.2 and 3.2 and the legs 2.3 and 3.3, without losing the engagement between the first front component 2 and the second rear component 3, the sections 2.1 and 3.1 of the horizontal legs 2.4 and 3.4 taper from the rear left to the front right in the illustration. The alignment of the two components 2 and 3 is achieved by pivoting or rotating the two components 2 and 3 while maintaining their engagement around the virtual axis XX.

[0032] Finally, the Fig.5 shows a detailed view as a sectional view from above along the line SS of the variable elevator shaft door frame 1 according to the invention through the front leg 2.2 and the rear vertical leg 3.2, in a half-extended position. In the sectional view shown, the insert 30, designed as a double wall, can be seen in section 2.1 of the front first component 2. Section 3.1 engages in the insert 30, whereby the rear component 3 can be displaced over the full length of the insert 30 relative to the first component 2 in the direction of the first component. In the other direction, the rear second component 3 can be displaced over half the length of the insert 30 relative to the first component 2 while maintaining the engagement from the half-extended position to the full extension. The double wall of the insert 30 is designed such that it prevents pivoting of section 3.1 of the rear component in that the double wall can spread open at least in sections during a rotational movement of the rear component 3 relative to the front component 2 while maintaining the engagement between the first component 2 and the second component 3. QUOTES CONTAINED IN THE DESCRIPTION

[0000] This list of documents submitted by the applicant was generated automatically and is included solely for the convenience of the reader. This list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions. Cited patent literature

[0000] DE 201 06 444 U1

[0003]

Claims

[1] Variable elevator shaft door frame (1) for installation in an elevator shaft in the area of ​​the elevator shaft door, with at least a first front component (2) in the form of a frame (20) and with at least a second rear component (3) in the form of a frame, wherein the first component (2) and the second component (3), in particular in the installed position, engage with each other to form an engagement, characterized by that the front component (2) and the rear component (3) can be moved relative to each other at least in sections while maintaining the engagement. [2] Variable elevator shaft door frame (1) according to claim 1, characterized by that the first component (2) and the second component (3) are U-shaped, each with two vertical legs (2.2,2.3,3.2,3.3) and one horizontal leg (2.4, 3.4). [3] Variable elevator shaft door frame (1) according to claim 1 or claim 2, characterized bythat the first component (2) and the second component (3) are constructed mirror-symmetrically about the longitudinal axis XX, which is virtually located as a mirror axis parallel to the vertical legs (2.2,2.3,3.2,3.3) in the middle of the horizontal legs (2.4, 3.4). [4] Variable elevator shaft door frame (1) according to one of the preceding claims, characterized by that the first component (2) is pivotable relative to the second component (3) about the longitudinal axis XX in an angular range of 0° to + / - 55° while maintaining the engagement between the two components (2,3). [5] Variable elevator shaft door frame (1) according to one of the preceding claims, characterized bythat the first component (2) is pivotable relative to the second component (3) about a horizontal axis HH lying orthogonally to the longitudinal axis XX virtually in the middle of the vertical legs (2.2,2.3,3.2,3.3) in an angular range of 0° to + / - 55° while maintaining the engagement between the two components (2,3). [6] Variable elevator shaft door frame (1) according to claim 4 and claim 5, characterized by that the first component (2) is pivotable relative to the second component (3) both about the longitudinal axis XX and about the horizontal axis HH in an angular range of 0° to + / - 55° while maintaining the engagement between the two components (2,3). [7] Variable elevator shaft door frame (1) according to one of the preceding claims, characterized bythat the front first component (2) forms an overlap in the form of an insert (30) on the sections (2.1) of the vertical legs (2.2, 3.2) and the horizontal leg (2.4) directed towards the rear second component (3) by means of a double wall which is designed at least in sections, wherein the second component (3) engages with the sections (3.1) in the insert (30) of the first component (2). [8] Kit for the assembly of a variable elevator shaft door frame (1) according to one of the preceding claims, with two vertical legs (2.2, 3.2) and one horizontal leg (2.4) for a front component (2) and with two vertical legs (2.3, 3.3) and one horizontal leg (3.4) for a rear component (3), wherein the components (2, 3) can be connected to one another during assembly to form an elevator shaft door frame (1).

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