WIDTH GAUGE AND ASSEMBLY PROCEDURE FOR FRAME ASSEMBLY

Description

[0001] The invention relates to a width gauge for adjusting fastening elements for foam-free installation of a frame in a door opening. Furthermore, the invention relates to an installation method using such a width gauge.

[0002] For the technological background and the state of the art, please refer to the following literature: [1] DE 10 2020 130 052 A1 [2] DE 10 2017 119 445 A1 [3] Wolfscraft door frame spreader, available on the market, see https: / / www.wolfcraft.com / products / wolfcraft / de / EUR / Produkte / Handwerk %C2%ADzeuge / T%C3%BCrfutter%C2%ADstreben / T%C3%BCrfutter-Montage-Set-%E2%80%9EPRO%E2%80%9C / p / P_3676 [4] Bessey door frame spreader, available on the market, see file: / / / C: / Users / SK / Downloads / Pr-BESSEY-TU-TUX-TMS-TFM-2K-WTR__DE-3002785-1.pdf [5] Wikipedia: Lehre (Technik), downloaded on 23.11.2022 at https: / Ide.wikipedia.org / wiki / Lehre_(Technik) [6] DE 92 13 157 U1

[0003] A width gauge is a gauge in the sense of [5] as a reference standard for a predetermined width, here in particular a frame or a door frame.

[0004] From [3] and [4], door frame spreaders for the installation of wooden frames by means of foaming with construction foam are known. From [6], a width gauge according to the preamble of claim 1 is known.

[0005] More environmentally friendly methods for foam-free frame assembly are known from literature references [2] and [1]. In this method, wall-mounted fastening elements are inserted into the reveal of a door opening, onto which frame-side fastening elements, such as bracket-shaped elements or undercuts, are hung.

[0006] Based on the state of the art, the invention has set itself the task of providing means and methods for further simplifying such foam-free assembly of frames.

[0007] To achieve this object, the invention provides a width gauge and an assembly method according to the independent claims.

[0008] Advantageous embodiments are the subject of the subclaims.

[0009] According to a first aspect thereof, the invention provides a width gauge for adjusting fastening elements for foam-free installation of a frame in a door opening, wherein the width gauge comprises: a connecting element adjustable in length, a first side element and a second side element, which are connected to one another by means of the connecting element, wherein the plate-shaped side elements each have an inner side facing the other side element and an outer side facing away from the other side element, a through-opening for a screwing tool for accessing a tool engagement on a screw head of the fastening element designed as a screw, wherein the through-opening opens on the outer side into a stop surface for the fastening element, and on the outer side, on an edge of the stop surface, a suspension formation for suspending the respective side element on the screw head.

[0010] It is preferred that the first and second side elements each have a cantilever whose outer side has a further stop surface which is aligned with the stop surface on the suspension formation.

[0011] It is preferred that the suspension formation has a step with an undercut or a groove.

[0012] It is preferred that the suspension formation has a first and a second region which are angled to one another in such a way that the screw head can be suspended on a first and a second side.

[0013] It is preferred that the side elements each have an additional stop for taking an external dimension of the frame to be mounted.

[0014] It is preferred that the connecting element connects the first and second side elements with an adjustable distance from each other.

[0015] It is preferred that the connecting element connects the first and the second side element in a rotationally fixed manner to one another and / or.

[0016] It is preferred that the connecting element has at least one telescopic element.

[0017] It is preferred that the connecting element comprises a first and a second tube with a non-circular cross-section, which engage in each other in a displaceable manner relative to each other.

[0018] It is preferred that the connecting element comprises a set of connecting element parts of different lengths.

[0019] It is preferred that the connecting element has a plurality of markings for adjusting to a plurality of predetermined frame widths.

[0020] It is preferred that the connecting element has a locking element or clamping element for fixing the set length.

[0021] It is preferred that the connecting element has a measuring scale for adjustment to a specific length.

[0022] According to a further aspect, the invention provides an assembly method for mounting a frame in a door opening, wherein the frame has vertically extending frame beams, which have frame-side fastening elements on a side facing the reveal of the door opening, which can be hooked onto wall-side fastening elements which are to be arranged in the reveal of the door opening, comprising the steps: a) Inserting pairs of screws with screw heads as wall-side fastening elements in the reveal of the door opening at opposite locations corresponding to the first frame-side fastening elements, b) Setting a width gauge according to one of the above embodiments to a width suitable for mounting the frame, c) Setting the distance between the screws using the width gauge, with the sub-steps c1) Aligning the through-holes of the width gauge with the further screwed-in screw heads of a first pair of screws, c2) Unscrewing the screw heads of the screws of the first pair using a screwing tool passed through the respective through-hole until the screw head hits the respective stop surface,c3) Attaching the width gauge using the attachment to the screw heads of the first pair of screws and c4) Adjusting the distance of at least one further pair of screws using the attached width gauge.

[0023] It is preferred that step c4) comprises: c4.i) rotating the width gauge so that the respective boom is partially at the level of the screw of the further pair and adjusting the screw depth of this screw by means of the screwing tool until the screw head strikes the stop surface of the boom.

[0024] Preferably, a width gauge composed of a set of different width gauge parts is used, each of which has a connecting part for forming part of the connecting element and one of the side elements. It is preferred that, for greater wall thicknesses of the wall defining the door opening, width gauge parts with larger side parts are used, and for smaller wall thicknesses, width gauge parts with smaller side parts are used. It is preferred that, for wider door openings, at least one width gauge part with a longer connecting part is used, and for smaller door openings, a corresponding width gauge part with a smaller connecting part is used.

[0025] Embodiments of the invention aim at a further improvement of the foam-free frame assembly known, for example, from [1] or [2]. In particular, screws are used as wall-side fastening elements. In particular, a width gauge is proposed for adjusting the screw spacing to the other side of the wall opening.

[0026] In some embodiments, the width gauge is formed by profiled tubes that slide into one another (example of connecting parts, together forming an example of the connecting element). The profile of the tubes acts as a twist lock.

[0027] In some designs, the width can be variably adjusted using the connecting element, such as the sliding tubes, and fixed with a clamping screw.

[0028] In some designs, the standard widths (for standard frames) are specified on the width gauge (glued on, embedded, printed on, lasered, ...).

[0029] In some alternative designs, a tape measure is positioned appropriately (glued on, embedded, printed on, lasered, ...) in order to set the width gauge to the exact outer casing dimension (frames are often also referred to as door casings, casing outer dimension is, for example, the outer dimension of the surface of the frame to be attached to the reveal).

[0030] In some designs, the outer dimensions of the lining can be measured using the width gauge on the respective frame to be installed using an additional stop on the side elements, which are designed as wings, for example, without the measurement itself having to be measured or adjusted.

[0031] In some designs, the wings have a hole (example of a through hole) so that the wall fastening screw can be adjusted to the appropriate screw-in depth by turning it with a suitable tool (screwdriver) through the hole in the wings of the width gauge.

[0032] In some designs, the contact surface for the screw heads of the wall mounting screws is located on the outside of the sash gauge. Since the first screw on each side should be positioned in front of the hole in the sash, some designs feature a small groove on the outside of the sash (an example of a hook-in design). The screw head can be hooked into this groove and thus positioned precisely. This prevents the sash gauge from slipping off the screw head as easily and ensures it is sufficiently positioned for further adjustment of the other screws.

[0033] In some designs, the remaining, more protruding outer sash surface (example: the contact surface on the outriggers) supports the adjustment of the screws located deeper in the wall reveal. By turning the sash gauge, for example, on the front, hooked screw heads, the other screw heads on both sides of the wall reveal can be easily adjusted by screwing them in or out until they stop against the outer sash surfaces.

[0034] In some designs, frames for greater wall thicknesses can also be installed with this system by replacing the sashes with larger, similarly shaped sashes.

[0035] By replacing a pipe section with a wing with a corresponding part with a longer pipe, wider wall openings (e.g. 2-wing elements) can also be installed with this system in some designs.

[0036] In some embodiments, the width gauge is preferably provided as a set with side elements of different sizes (here called wings) and connecting element parts of different lengths (e.g. tube parts of a telescopic tube).

[0037] Some embodiments can be obtained by modifying the lining spreaders known from [3] or [4] by using the side elements instead of fastening clamps to form a gauge for setting the width dimension between the wall-side fasteners.

[0038] An exemplary embodiment is explained in more detail below with reference to the attached drawings. They show: Fig. 1a front view of an arrangement of a right and left frame beam of a frame with an embodiment of a width gauge; Fig. 2a side view of the arrangement from the left in Fig. 1 seen; Fig. 3 a plan view of the arrangement from above in Fig. 1seen; Fig. 4 a perspective view of a side element of the width gauge according to a preferred embodiment; Fig. 5 a detailed view of a suspension formation of the side element of Fig. 4 ; Fig. 6 is a further perspective view of the side element; Fig. 7 is a perspective view of the arrangement of frame members and width gauge according to a further embodiment; Fig. 8 is a perspective schematic representation of an outer side of one of the frame members facing the reveal of a door opening with frame-side fastening elements; Fig. 9 is a partially sectioned plan view of a wall area with the reveal and wall-side fastening elements during adjustment using the width gauge; and Fig. 10 is a view from the right in Fig. 9 onto the reveal of the wall area, with the side element of the width gauge shown in dashed lines to illustrate the setting of several wall-side fasteners.

[0039] In the attached Fig. 1 to 3 an arrangement of vertically arranged frame beams 10 of a frame 12 and a width gauge 14 is shown. Fig. 4 to 6 show a formation of the respective side elements 16.1, 16.2 of the width gauge. Fig. 7 shows a further embodiment of the arrangement of width gauge 14 and frame beams 10. The frame beams 10 are, as shown in Fig. 8 shown, provided with frame-side fastening elements 18.1, 18.2, which are attached to the Fig. 9 and 10 shown wall-side fastening elements 20.1, 20.2 can be hooked in, in order to mount the frame 12 without the need for back-foaming with construction foam.

[0040] The width gauge 14 is used to adjust the distance between the opposite wall-side fastening elements 20.1 and the opposite wall-side fastening elements 20.2 to the width of the frame 12. How to adjust the Fig. 1 to 7 As can be seen, the width gauge 14 is designed for adjusting wall-side fastening elements 20.1, 20.2 for foam-free installation of a frame 12 in a door opening 22. The width gauge 14 has a connecting element 24, a first side element 16.1, and a second side element 16.2.

[0041] The connecting element 24 is adjustable in length.

[0042] The side elements 16.1, 16.2 are connected to one another by means of the connecting element 24 in such a way that the distance between the side elements 16.1, 16.2 can be adjusted by adjusting the length of the connecting element 24.

[0043] The side elements 16.1, 16.2 are essentially plate-shaped and can also be referred to as wings. In the following, the inner side 26 of each side element 16.1, 16.2 refers to the side facing the other side element 16.2, 16.1. The side of the side element 16.1, 16.2 facing away from the other side element 16.2, 16.1 is referred to below as the outer side 28. On the outer side 28, each side element 16.1, 16.2 has a stop surface 30 for the fastening element 20.1, 20.2 to be adjusted. If the width gauge 14 is adjusted to the length specified for the frame to be installed by adjusting the length of the connecting element 24, the respective stop surfaces 30 of the first and second side elements 16.1, 16.2 are spaced apart by the distance that the opposing wall-side fastening elements 20.1, 20.2 in order to fit the frame members 10 of the frame 12 into the door opening 22.

[0044] In the stop surface 30, the respective side element 16.1, 16.2 has a through-opening 32, such as a hole or other recess, through which a screwing tool 40 can be passed, which is suitable for screwing in or unscrewing the wall-side fastening elements 20.1, 20.2 designed as screws 34.

[0045] Such as the Fig. 9 and 10 removable, the respective screw 34 has a screw head 36 with a tool engagement 38. As is well known, the tool engagement 38 can be designed in various ways, for example as a slot or Allen opening, Torx opening, Phillips, etc. The screwing tool 40, which is in Fig. 9 shown schematically, can be designed as a screwdriver, Allen key, ratchet with screw bit, etc.

[0046] Furthermore, each side element 16.1, 16.2 has on the outside near the through opening 32 a suspension formation 42 which is designed to be suspended on the screw head 36.

[0047] How to use the Fig. 4 to 6 As can be seen, in the illustrated embodiments, each side element 16.1, 16.2 has a plate-shaped base 44, the outer side of which forms the stop surface 30. From this base 44, an area protrudes like a pedestal on an area of ​​the side element 16.1, 16.2. This area is referred to below as the projection area 46. At least one edge of the projection area 46 forms a step with the stop surface 30, with a groove 50 being formed in the step surface 48. This groove 50 is an example of an undercut 52, with which the side element 16.1, 16.2 can be suspended on the screw head 36.

[0048] In the illustrated embodiments, the step surface 48 is angled with two step surface areas 48.1, 48.2 so that the screw head 36 can be hooked onto a corner 54 of the step surface 48.

[0049] For example, the projection region 46 is recessed at a corner region 56 of the side element 16.1, 16.2, so that the base of the corner region 56 is formed by the stop surface 30 and the corner region 56 is delimited on the one hand by the edges of the side element 16.1, 16.2 and on the other hand by the regions 48.1, 48.2 of the step surface 48.

[0050] In the illustrated embodiments, each side element 16.1, 16.2 further comprises an extension arm 58 extending parallel to the stop surface 30, so that the stop surface 30 is extended to at least one side.

[0051] In embodiments not shown in detail, the projection area 46 is extended beyond the plate-shaped base 44 at one point on the respective side element 16.1, 16.2. The protruding extended section of the projection area 46 thus forms an additional stop for measuring an external dimension of the frame 12 to be mounted.

[0052] How to Fig. 1 , 3 and 7 As can be seen, the connecting element 24 connects the first side element 16.1 and the second side element 16.2 at an adjustable distance from one another. Preferably, the connecting element 24 is inherently torsionally fixed and is also connected to the respective side elements 16.1, 16.2 in a torsionally fixed manner.

[0053] In the illustrated embodiments, the connecting element 24 comprises at least one telescopic element, which here is designed in particular as a telescopic tube with a first tube 60.1 and a second tube 60.2. The tubes 60.1, 60.2 have a non-circular cross-section, for example, a profile to ensure torsional strength. For example, Fig. 7 As can be seen, the connecting element 24 can have a plurality of markings 62 for adjusting to a plurality of predetermined frame widths, for example, for standard frames 12. Alternatively, a measuring scale, such as a meter scale or a tape measure, can be provided. Furthermore, the connecting element 24 has a locking element or clamping element 64 for fixing the selected length.

[0054] In particularly preferred embodiments, the width gauge 14 is provided as a set of differently dimensioned parts. For example, differently dimensioned side elements 16.1, 16.2, in particular with differently long extension arms 58 and / or different arrangements of the suspension formation 42, can be provided; tubes 60.1, 60.2 of different lengths can also be provided. It is also possible to supply a third tube, which is inserted between the first tube 60.1 and the second tube 60.2 in order to widen the width gauge 14 to larger widths.

[0055] In the following, the Fig. 8 to 10 the application of the width gauge 14 for assembling the frame beams 10 of the frame 12 is explained in more detail.

[0056] As is particularly evident from Fig. 8As can be seen, on the side facing a reveal 66 of the door opening 22, several frame-side fastening elements 18.1, 18.2 are provided at several different heights, which can be hung on the screw head 36 of the screws 34 provided as wall-side fastening elements 20.1, 20.2. Fig. 8 An arrangement of a first frame-side fastening element 18.1 and a second frame-side fastening element 18.2 is shown side by side at the same height. Such an arrangement is located at at least two spaced heights on each frame beam 10, possibly at three or more different height positions. As can be seen in particular Fig. 9As can be seen, the wall-side fastening element 20.1, 20.2, which complements the frame-side fastening elements 18.1, 18.2, is then attached to the reveal 66. In the example presented here, a screw 34 is inserted at each corresponding height position on the reveal 66 as the first wall-side fastening element 20.1 and next to it another screw 34 as the second wall-side fastening element 20.2. The same is done on the opposite side of the door opening 22, so that a pair of first wall-side fastening elements 20.1 and a pair of second wall-side fastening elements 20.2 face each other in the door opening 22.

[0057] The positioning of the fastening elements 18.1, 18.2, 20.1, 20.2 is carried out in the manner as explained in more detail in the reference [1].

[0058] The width gauge 14 is then assembled from the set of width gauge parts according to the frame 12 to be mounted and adjusted to the appropriate size. This can be done as shown in Fig. 7 shown, by adjusting to the external dimension A of the frame 12. In the example of Fig. 3 The frame 12 has an internal dimension I of 814 and an external dimension A of 864 mm. The width gauge 14 is used as shown in Fig. 7 The frame-side fastening elements 18.1, 18.2 are dimensioned so that they can be suspended from screw heads 36, which are located 2 mm from the outer dimension of the frame beam 10. In particular, the frame-side fastening elements 18.1, 18.2 are bracket-shaped and provided with a recess for receiving and suspending the screw shaft.

[0059] Alternatively, the chuck outer dimension A can be measured using the additional stops mentioned above or adjusted using the measuring tape.

[0060] The appropriately adjusted width gauge 14 is then positioned between the pair of first wall-side fastening elements 20.1, so that the tool engagement 38 of the screw heads 36 of these first wall-side fastening elements 20.1 is accessible through the through-opening 32. The screws 34, which form the first wall-side fastening elements 20.1, are unscrewed until they strike the stop surface 30, which delimits the through-opening 32. The width gauge 14 can then be hung with its suspension formations 42 on the screw heads 36 of the first wall-side fastening elements 20.1, as is also shown in Fig. 9 and also in Fig. 10By rotating the width gauge 14 around these screws 34 of the first wall-side fastening elements 20.1, the brackets 58 can be positioned over the screw heads 36 of the screws 34 forming the second wall-side fastening elements 20.2. These screws are screwed in or out until they strike the stop surface 30 in the area of ​​the brackets 58. Thus, the two pairs of wall-side fastening elements 20.1, 20.2, which are located at the same height, are adjusted in terms of distance from one another.

[0061] The corresponding procedure is repeated at all height positions where wall-side fastening elements 20.1, 20.2 are located.

[0062] The frame beams 10 can then be hooked onto the wall-side fastening elements 20.1, 20.2 with their frame-side fastening elements 18.1, 18.2 and are thus positioned to match each other. List of reference symbols:

[0063] 10 Frame stile 12 Frame 14 Width gauge 16.1 First side element 16.2 Second side element 18.1 First frame-side fastening element 18.2 Second frame-side fastening element 20.1 First wall-side fastening element 20.2 Second wall-side fastening element 22 Door opening 24 Connecting element 26 Inside 28 Outside 30 Stop surface 32 Through-hole 34 Screw 36 Screw head 38 Tool recess 40 Screwing tool 42 Hanging formation 44 Plate-shaped base 46 Projection area 48 Step surface 48.1 First area of ​​the step surface 48.2 Second area of ​​the step surface 50 Groove 52 Undercut 54 Corner 56 Corner area 58 Outer bracket 60.1 First tube 60.2 Second tube 62Marking 64Clamping element 66Reveal AExternal dimension IInner dimension

Claims

1. Width gauge (14) for adjusting fastening elements (20.1, 20.2) for foamless mounting of a frame (12) in a door opening (22), wherein the width gauge (14) comprises: a connecting element (24) adjustable in length, a first side element (16.1) and a second side element (16.2) connected to each other by means of the connecting element (24), wherein the plate-shaped side elements (16.1, 16.2) each have an inner side (26) facing the other side element (16.2, 16.1) and an outer side (28) facing away from the other side element (16.1, 16.2), a through-opening (32) for a screwing tool (40) for accessing a tool engagement on a screw head (36) of the fastening element (20.1, 20.2) designed as a screw (34), characterized in that the through-opening (32) on the outer side (28) leads into a stop surface (30) for the fastening element (20.1, 20.2), and that there is a hook-in feature (42) on the outer side (28) at the stop surface (30) for hooking the respective side element (16.1, 16.2) onto the screw head (36).

2. Width gauge (14) according to claim 1, characterized in that the first and second side elements (16.1, 16.2) each have a cantilever (58) on the outer side (28) of which a part of the stop surface (30) is formed.

3. Width gauge (14) according to any of the preceding claims, characterized in that the hook-in feature (42) comprises at least one of the following features: 3.1 a step with an undercut (52) or a groove (50) or 3.2 a first and a second region (20.1, 20.2) which are angled relative to each other in such a way that the screw head (36) can be hooked-in on a first and a second side.

4. Width gauge (14) according to any of the preceding claims, characterized in that the side elements (16.1, 16.2) each have an additional stop for taking an external dimension A from the frame (12) to be mounted.

5. Width gauge (14) according to any of the preceding claims, characterized in that the connecting element (24) connects the first and second side elements (16.1, 16.2) at an adjustable distance from each other.

6. Width gauge (14) according to any of the preceding claims, characterized in that the connecting element (24) connects the first and second side elements (16.1, 16.2) securely against rotation relative to each other.

7. Width gauge (14) according to any of the preceding claims, characterized in that the connecting element (24) comprises at least one of the following features: 7.1 at least one telescopic element or 7.2 a first and a second tube (60.1, 60.2) with a non-circular cross-section, which engage into each other in a manner displaceable relative to each other or 7.3 a set of connecting element parts of different lengths or 7.4 several markings (62) for adjustment to several predetermined frame widths or 7.5 a locking element or clamping element (64) for fixing the adjusted length or 7.6 a measuring scale for adjustment to a specific length.

8. Assembly method for mounting a frame (12) in a door opening (22), wherein the frame (12) has vertically extending frame uprights (10) which have, on a side to be facing the jamb (66) of the door opening (22), frame-side fastening elements (18.1, 18.2) that can be hooked into wall-side fastening elements (20.1, 20.2) to be arranged in the jamb (66) of the door opening (22), the method comprising the steps of: a) pairwise insertion of screws (34) with screw heads (36) as wall-side fastening elements (20.1, 20.2) into the jamb (66) of the door opening (24) at locations opposite each other corresponding to first frame-side fastening elements (18.1), b) adjusting a width gauge (14) according to any of the preceding claims to a width suitable for mounting the frame (12), c) adjusting the distance between the screws (34) by means of the width gauge (14), with the sub-steps of: c1) aligning the through-openings (32) of the width gauge (14) with further screwed-in screw heads (36) of a first pair of the screws (34), c2) unscrewing the screw heads (36) of the screws (34) of the first pair by means of a screwing tool (40) passed through the respective through-opening (32) until the screw head (36) strikes the respective stop surface (30), c3) hooking the width gauge (14), by means of the hook-in feature (42), onto the screw heads (36) of the first pair of screws (34) and c4) adjusting the distance of at least one further pair of screws (34) by means of the hooked-in width gauge (14).

9. Assembly method according to claim 8 using a width gauge (14) according to claim 2 or according to any of claims 3 to 7, as far as back-referred to claim 2, wherein step c4) comprises: c4.i) turning the width gauge (14) so that the respective cantilever (58) is at least partially at the height of the screw (34) of the further pair and adjusting the screw-in depth of this screw (34) by means of the screwing tool (40) until the screw head (36) strikes the stop surface (30) of the cantilever (58).

10. Assembly method according to any of claims 8 or 9, wherein a width gauge is used which is composed of a set of different width gauge parts, each having a connecting part for forming a part of the connecting element (24) and one of the side elements (16.1, 16.2), wherein for greater wall thicknesses of the wall delimiting the door opening (22) width gauge parts with larger side parts are used and for smaller wall thicknesses width gauge parts with smaller side parts are used.

11. Assembly method according to any of claims 8 to 10, wherein a width gauge (14) is used which is composed of a set of different width gauge parts, each of which has a connecting part for forming a part of the connecting element (24) and one of the side elements (16.1, 16.2), wherein for wider door openings (22) at least one width gauge part with a longer connecting part is used and for smaller door openings (22) a corresponding width gauge part with a smaller connecting part is used.