BG62705B1 - Fastener for the mounting of a roof ridge lattice and an engagement screw to it - Google Patents

Abstract

The fastener is used for the mounting of a roof ridge lattice to a ridge saddle beam in building roof structures in civil engineering. It has the facility of making an additional superstructure of the roof ridge lattice in both directions: upwards and downwards, made by reduced labour and time consumption. The fastener contains an ironwork (1) for laying the roof ridge lattice having a passage hole (6) machined to the base (2) of the ironwork (1) in which the engagement screw (7) having a head (8) and stem (9) is fitted. Stem (9) has threading (14), and surface (13) is designed for meshing a spanner in the section between head (8) and threading (14) of the engagement screw (7) which is accessible from the side of the ironwork (1) fitted to the ridge lattice and serving for the adjustment of the distance between the ridge lattice and the ridge saddle beam. 12 claims, 5 figures

Description

Technical field

The invention relates to a fastening element and a fastening screw to it and finds application for mounting a joist to a billet in the capital when forming roof structures.

BACKGROUND OF THE INVENTION

It is known that in the case of roof structures with wooden roof trusses, the ridge of the roof truss is formed by a ridge strip. Above the ridge capital, a ridge lath is placed at some distance, which is intended to carry the ridges of the ridge. Installation must be carried out at a certain distance from the ridge capital, since on the outside of the roof truss, the slats of the cover must then be placed and the tiles arranged.

For known mounting methods, the miter pole is installed by the worker performing the roofing work. Until now, a sheet U-profile is used for this purpose, the dimensions of which correspond to the dimensions of the ridge bar, which is subsequently inserted into it. This sheet is nailed with nails. A sheet metal U-profile with a welded nail is also used. ridge or comb nail. The distance to the ridge capital is determined and realized by the eye of the roofing worker, respectively. as instructed by the manufacturer of the tiles.

This method has the advantage that, after installing the mallet and tile ordering, the mallet can be approached a short distance to the mallet capital by hammering the mallet in the area of a nail.

This method has the disadvantage that if the ridge covering the sheet is fixed deeper than necessary, it must be forged again to increase the distance between it and the ridge capital. This is associated with additional, higher installation costs and a loss of attachment resistance.

There is a known height-adjustable lining of the laths of roof truss structures, disclosed in DE-A1-39 33 037. This support comprises a base of curved sheet metal and an upside-down U head connected to each other by a headless screw. The distance between the head and the base can be adjusted before inserting the baseboard, but no further adjustment is possible after that.

There is also known a further support of a mantle from DE C1-39 18 390, in which the nail head is made of wood. The top of this head can be secured with nails or screws. With this support, lateral displacement and adjustment of the ridge can be made, but the distance between the ridge and the ridge can not be changed in order to adjust the distance between them.

It is known from DE-A1-34 27 608 a fastening screw comprising a concealed head and a stem with a smooth part and a threaded part, between which is formed a continuous annular rib with a rectangular truss providing strength and security of attachment. The length of the smooth part of the stem is freely selected so that, together with the annular rib and the concealed head, they can sink without difficulty into a through hole of a wooden lath that must be secured to a structure.

This mounting screw cannot provide additional adjustment and attachment without being able to fall into the casing, as its stem structure does not allow it.

SUMMARY OF THE INVENTION

It is an object of the invention to provide a mounting element for mounting a bogie and a fastening bolt thereto, with the possibility of further adjusting the log bar with little labor and time, in both up and down directions.

The problem is solved by a mounting element for attaching the bogie to the ridge capital containing a retaining screw. According to the invention, the fastening element also includes a casing for laying the ridge, which has a through hole formed at the base of the casing. A retaining screw is mounted in the through hole having a head and a stem. The stem has a thread, and for the area between the head and the thread of the retaining screw is provided a surface for engagement of a spanner, which is accessible from the attachment to the ridge strip, which serves to regulate the distance between the ridge deck and the ridge capital.

In a preferred embodiment of the fastener according to the invention, the fastening screw is shaped like a screw, in particular with a hidden head.

In another preferred embodiment of the fastening element according to the invention, the fastening bolt is formed as a self-tapping screw (screw-nail) with a hidden head.

The fastening element according to the invention can be arranged so that the fastening bolt has a shaped protrusion preventing it from falling out of the package.

It is advantageous for the fastener according to the invention to be configured so that the fastening bolt under its head has a thickness, in particular in the form of a continuous annular rib, respectively. annular bulge.

The fastening element according to a preferred embodiment may be constructed in such a way that a funnel-shaped recess is formed at the base of the casing in the area of the aperture.

The fastening element according to the present invention is constructed in such a way that the recess in the funnel shape in the area of the through hole of the package corresponds to the shape of the head of the fastening screw.

In one embodiment of the fastener according to the invention, the stem surface of the stem is obtained by cold machining.

Preferably, the fastener according to the invention is provided with a sheet metal sheath.

It is preferable that one of the fasteners according to the invention is arranged so that the casing is U-shaped and the through hole is at the base of the U-shape and the distance between the side walls of the casing making a right angle with the base, to match the width of a traditional logging bar.

The problem is also solved with a fastening screw, in particular as a fastening screw of a fastener made according to the invention, comprising a head and a threaded stem, with a surface for engaging a wrench in the area between the head and the thread of the stem.

The fastening of the mole with the fastening element according to the invention is carried out almost in the same way as before.

The roofing worker fastens the shackle to the ridge capital of the eye at some distance from it. After that, he can now attach and fasten the mantle. Using, for example, a plain spanner attached to the surface of a spanner on the stem of the screw stem, it can make additional adjustments in both directions without having to remove the spindle, since the rotation of the screw stem does not have to be done. performed by contacting a tool for this purpose with the screw head. The screw stem may have, for example, a relatively steep two-threaded thread, so that the worker has to rotate the fixing screw only slightly to screw or unscrew it further to make the necessary adjustment.

Due to the possibility of additional adjustment and with the already slatted bar, the initial fixation of the eye does not need to be carried out with particular precision, which also allows the roof work to be carried out more quickly.

One possibility of designing the mounting bolt is a concealed head bolt. In this case, the worker can tighten it with a cordless electric screwdriver.

A second possibility of the invention is that the bolt is shaped like a self-tapping screw or a hidden head screw. This possibility has the advantage that the roofing worker can perform the hammer fastening in a manner known in the past.

Once the fittings are fastened by a flange or power connection to the saw blade, as in the case of the existing blade profiles, the distance can be adjusted with a spanner (wrench) in case the fastening screws simply pass through the holes provided for them. . A through hole should be understood to mean an aperture that allows the passage of the retaining screw to pass, but some work is required for this purpose.

In the further development of the invention it may be provided that the fastening screw has a structural member to prevent it from falling out of the package. As the screw is rigidly or screwed only partially in the ridge capital, this makes it convenient to attach the cover to the screw head without falling out.

In the further development of the invention, it may be provided that the screw has a thickness under its head, in particular in the form of a continuous edge or rib. This thickening can serve, on the one hand, to seal against the ingress of water into the gap between the screw and the wall of the passage. However, this seal is not necessarily necessary.

In the further development of the invention, it can be provided that the casing is formed by a funnel-shaped recess in the area of the aperture. This funnel-shaped recess can be achieved in a simple technological way in the manufacture of the casing.

In particular, it may be provided that this funnel-shaped recess in the area of the through passage of the casing corresponds to the shape of the screw head. This leads not only to a better distribution of forces, but in particular to the best possible compaction.

According to the invention, in further development, the screw-nut spanner plates may be obtained by cold machining, e.g. forging or pressing. This can reduce the cost of manufacturing the fastener.

In particular, it may be envisaged that the forging be made of sheet metal, e.g. with a U-shape and width between the sidewalls corresponding to the width of traditional ridges. The through hole is located at the base of the U-profile, in particular at the center of the screw axis. There may also be openings in the profile countries through which the roofing worker can anchor the ridge to the fascia. The invention also provides a fastening bolt, which is not, however, intended to be applied together with the mounting bolt.

Description of the attached figures

The following description of a preferred embodiment of the invention is illustrated early with the attached figures, of which:

Figure 1 is a perspective view of a package serving as part of a fastener;

Figure 2 is a fixing bolt, mounted in a partially cut-out package;

Figure 3 is an enlarged partial view of a partial section of the casing in the area of the aperture;

FIG. 4 is an image corresponding to FIG. 3 in a slightly modified embodiment;

Figure 5 is a cross-section along the axis V-V of Figure 2 through the surface of a wrench on the stem of the retaining screw.

Examples of carrying out the invention

The invention is more fully understood by the following non-limiting embodiments.

In FIG. 1 is a perspective view of the case 1 which, together with the depictions of FIG. 2 the fastening screw 7 forms the fastening element according to the invention. The cover 1 is made of sheet metal, for example by punching and bending, and is a U-shaped profile with a base 2 and two associated side walls 3 which are planar, with the side walls 3 having a right angle to the base 2. The inner distance between the two side walls 3 of the profile corresponds to the width of a traditional ridge strip, the thickness of which must be at least the height of the walls 3. The ridge strip can be attached to the casement 1 by being laid between the walls 3 and pinned there. . For this purpose, the two walls 3 have one opening 4 for fixing.

In the middle of the base 2 of the profile of the case 1 is pressed a recess with a funnel-shaped 5, which protrudes from the opposite side walls 3 of the base

2. In the middle of the funnel-shaped recess 5, a through hole 6 is formed, as also seen in FIG. 2.

In FIG. 2, showing only partially the casing 1, a retaining screw 7 is inserted into the through hole 6 at the base of the cone of the funnel-shaped recess 5. The retaining screw 7 is shaped like a screw with a hidden head 8 and a stem 9. The hidden head 8 is of such dimensions. that it can be accommodated in the section of the recess with the funnel-shaped form 5 of the casing 1. The edge of the through hole 6 is located so that it rests on the stem 9 of the fastening screw 7.

At some distance below the concealed head, the fastening screw 7 has a continuous annular rib 10 with a triangular section having its lower and upper 12 sides on its stem. The underside of the retaining screw 7 directed to the top 11 of the annular rib 10 is inclined toward the stem 9, while the top 12 is almost perpendicular to the longitudinal axis of the retaining screw 7.

The annular rib 10 is intended to prevent on the one hand the fall of the casing 1 down the stem 9 and, on the other hand, is a support plate for the edge of the aperture 6, which can also serve as a seal.

A spanner 13 is formed on the stem 9 of the fastening screw 7, at some distance from the annular rib 10. This surface 13 is formed, for example, by cold treatment of the stem. It is projected only slightly outside the contour of the stem 9, so that it does not interfere with the passage of the fixing screw 7 through the through hole 6.

In the region of its lower half, the stem 9 of the fastening screw 7 has a two-threaded thread 14. It reaches the tip 11 of the fastening screw 7.

The shape of the wrench surface 13 can be seen in FIG. 5. The portion of the stem 9 of the mounting screw 7, including the surface 13 for the wrench, is treated, for example, by cold deformation by the pressing method of forming a section with two mutually parallel and planar surfaces 13 for the wrench. A spanner may be attached to these two surfaces 13. The leakage of the wrench in both directions along the securing screw 7 is prevented by the fact that in its remaining range the stem 9 has a diameter greater than the distance between the two surfaces 13 for the wrench.

FIG. 3 shows, on a larger scale section, an opportunity for fitting a portion representing a funnel-shaped recess 5 of the fitting 1 to the shape of the fastening screw 7. The edge of the through hole 6 is located near the upper side 12 of the continuous annular rib 10, m. e. along a closed circular line. At the same time, the funnel-shaped recess 5 in the region of its upper edge 15 is supported at the bottom of the screw head 8. This means that a support is provided on two closed circular lines, so that the casing cannot be greatly displaced and shaken at anchorage.

In FIG. 4 shows an embodiment in which the edge of the through hole is also supported in the stem of the screw 9 so that good sealing is carried out along this circular line. However, the concealed head 8 of the fastening screw 7 in this embodiment does not rest in the recess with the funnel-shaped 5. Both embodiments are suitable for the purposes of the invention, the preferred embodiment of FIG. 3.

Use of the invention

The fastener shown in the figures is used as follows.

The fastener is supplied in the embodiment shown in FIG. 2 form. The fastening screw 7 is already mounted through the through hole 6 of the recess in the funnel shape 5 and thus the casing 1 is connected to the fastening screw 7.

The roofing worker, by means of a screwdriver, screws the fixing screw from top to bottom in the bilingual capital, at his own discretion, as deep as he sees fit. at a distance at his discretion.

After mounting all the fasteners 1 along the ridge capital, the worker places the ridge between the side walls 3 of the cover 1 and nails it. Then, with a wrench that engages the surface 13 of the wrench, it adjusts the exact distance of the spindle to the spanner, which may reduce or increase this distance.

The fastening screw 7 shown in the figures can be used in combination with other fittings, e.g. with a wooden log through which it is mounted. Instead of a two-threaded thread 14, which is a fully rolled sharp thread with sharp edges, a fastening screw 7 may be used which has incomplete, respectively. slightly pronounced thread, which is commonly found in self-tapping screws (nail screws). The latter are hammered and their threads serve only to make a certain adjustment (adjustment) by turning or rotating.

Claims (12)

Claims CLAIMS 1. Fastening element for mounting a scaffold to a scapula comprising a fixing screw, characterized in that it includes a casing (1) for laying the white scaffold having a through hole (6) formed on the base (2) of the casing. (1) in which the mounting screw (7) having a head (8) and a stem (9) is mounted, wherein the stem (9) has a thread (14) and in the area between the head (8) and the thread (14) the mounting screw (7) is provided with a surface (13) for engaging a wrench, which is accessible from the spacer (1), which is used to adjust the distance between the radial crest the ridge lath and capital. Fastening element according to claim 1, characterized in that the fastening screw (7) is shaped like a screw, in particular with a concealed head (8). The fastening element according to claim 1, characterized in that the fastening bolt (7) is formed as a self-tapping screw (nail screw) with a hidden head (8). The fastening element according to the preceding claims 1 to 3, characterized in that the fastening bolt (7) has a shaped projection preventing it from falling out of the package (1). The fastening element according to claims 1 to 4, characterized in that the fastening bolt (7) under its head (8) has a thickness, in particular in the form of a continuous annular rib (10) or. annular projection. 6. The fastening element according to claims 1 to 5, characterized in that the base (2) of the casing (1) is in the passage area 5, an opening (6) is formed by a funnel-shaped recess (5). 7. The fastener according to claims 1 to 6, characterized in that the recess in the funnel shape (5) is in the area 10 of the through hole (6) of the casing (1) corresponds to the shape of the head (8) of the fastening screw (7). The fastening element according to claims 1 to 7, characterized in that the surface is The 15 threads (13) for the spanner on the stem (9) are further machined by cold working. The fastener according to one of claims 1 to 8, characterized in. that the case (1) is of sheet metal. The fastening element according to one of claims 1 to 9, characterized in. that the casing (1) is U-shaped and the through hole (6) is located at the base (2) of the U-shape and the distance between the side walls (3) of the casing (1) is at right angles to the base ( 2), corresponds to the width of a traditional logging bar. A fastening screw, in particular as a fastening screw (7) of a fastener made according to any one of claims 1 to 10, comprising a head (8) and a threaded stem (9) (14), characterized in that in the area between the head (8) and the thread (14) there is a surface (13) for engaging a wrench. 12. Fastening screw according to claim 11. characterized in that it contains one or more characteristic features according to one or more of claims 2 to 11 relating to the fastening screw (7).