SK109697A3 - Fastening element and its use for connecting a ridge batten and fastening bolt therefore - Google Patents

Abstract

The fixture bolt (7) has a head (8) and a shaft (9). The shaft has a thread (14) and in the area between the head and the thread is a key surface (13) accessible by the fitting part fixed to the ridge lath for adjustment of the distance between the ridge lath and the ridge purlin. The fixture bolt is formed as a screw, particularly with a countersunk head. It has a formation preventing withdrawal from the fitting part. Beneath its head it has a thickened structure, particularly in the form of an all-round rib (10) or bulge. The fitting part in the area of the penetration aperture is funnel-shaped.

Description

Technique? /

The invention relates to a fastening element for attaching a ridge batten to a ridge purlin, comprising a fastening element and a fastening bolt.

BACKGROUND OF THE INVENTION

In the case of wooden roof trusses, the roof truss usually consists of a ridge purlin. At the top of the ridge purlin there is a ridge batten which carries the ridges at a certain distance. location

- the ridge battens must be made at a certain distance from the ridge battens must be tiled crest-shaped cross-section through the usual purlins, or the first treated roofing.

battens in the shape of the ridge outside of the roof truss roof battens and are used on which

These on the mounting plates match the same are nailed

Usually so far

U, whose slat dimensions. These sheets of piercing nails.

if the U-shaped sheet is provided with a welded nail or a so-called comb nail. The distance of the ridge batten from the ridge purlin is determined by the estimator of the roofer respectively. according to the size of the tile covering. This method has the advantage that after the attachment of the ridge batten and laying of the covering, the ridge batten can be brought somewhat closer to the ridge truss by hammering the roofer on the top of the roof batten at the nail location.

This method, however, has the disadvantage that a deeper hammered-in U-shaped sheet for attaching the ridge batten must be pulled out of the lining. This means an increase in the cost of assembling the ridge batten and reducing the strength of its attachment.

From DE-3.933 03? The height-adjustable roof material fastener for the truss construction is known. This grip comprises a bead formed from a bent sheet and a U-shaped head which is open upwardly and which are connected to one another by a threaded bolt. The spacing between the header and the foot may be changed before placing the ridge batten in the header. But not later.

Another German patent DE 3.918 390 discloses a ridge batten fastening which consists of a wooden head fixed by a single nail. A ridge batten can then be nailed or screwed to the top of this header. In this embodiment, the lateral displacement of the ridge battens may be accomplished to some extent, but not by adjusting its distance from the ridge truss.

SUMMARY OF THE INVENTION

The present invention has the basic task of attaching a ridge batten in such a way that the batten batten could be additionally aligned at the lowest possible cost, in both directions, i.e. in the same way. both up and down.

To solve this problem, according to the invention, a fastening element is provided, characterized by the features contained in the first claim. The invention also relates to a fastening bolt characterized by the features contained in the eleventh claim. Further embodiments of the invention are the subject of the respective dependent claims.

The fastening of the ridge batten by means of the clamping element according to the invention is carried out in almost the same manner as before. The roofer first fixes the fastener at a certain distance, and only estimates, to the ridge purlin. Then the roofer inserts the ridge batten into the fastener and, with the aid of a simple key mounted on the shank surfaces, can then adjust the ridge batten in both directions. This adjustment can thus be carried out, and the ridge battens need not be removed from the fastening element, since the rotation of the shank of the fastening bolt is not performed by the action of the tool on the bolt head. A relatively steep two-threaded thread can be formed on the shank of the fastening bolt, which allows only a relatively small rotation when it is screwed on or off. unscrewing.

As a result of this possibility of aligning the ridge battens without removing them from the gripping element whose distance from the ridge purlin is initially set only according to estimation and does not require excessive care, the working performance of the roofer can be significantly increased.

One possible embodiment of the fastening bolt is formed in the form of a countersunk head screw. In this case, the fastening bolt can be screwed, for example, by means of a cordless electric screwdriver.

A second embodiment of the fastening bolt is that the bolt is in the form of a nail with a countersunk head thread.

This embodiment has the advantage that the roofer can fix the fitting part in the usual way with a hammer

If the ridge batten is attached to the gripping member, its adjustment can be done by means of a screwdriver, if the fastening bolt is simply pushed through a bore in the fastener. certain means.

According to a further embodiment of the invention, the fastening bolt is designed so as not to prevent it from being pulled out of the retaining element. Since the bolt is nailed or screwed only partially in the ridge purlin, it is achieved that the retaining element remains suspended from the bolt head and thus cannot fall down.

According to the invention, it is further provided that under the head of the shaft a bead is formed, in particular in the form of a circumferential bulge or rib. This bulge can serve both for a firm fit and for sealing, so that no water can penetrate the space between the stem and the opening. However, this sealing is not absolutely necessary.

According to a further embodiment of the invention, the through hole formed in the element holder has the shape of a funnel, which can be produced in a simple manner in the manufacture of this part.

The funnel-like shape of the through hole in the gripping element is adapted to the shape of the shank head, which not only leads to a better distribution of forces, but above all a better sealing is achieved.

The key mounting surfaces formed on the shank of the clamping bolt may, according to one embodiment of the invention, be formed by cold forming, for example by pressing or forging. This ensures that the cost of manufacturing the fastening bolt is relatively low.

The gripping element itself is made of a sheet bent into a U-shape, the cross-section of which corresponds to that of the ridge batten. In the lower part of the gripping element, an opening is formed in the middle of the gripping element. Holes can also be formed in the side walls of the gripping element, through which the roofer can then nail the ridge batten inserted therein. The invention also provides a fastening bolt which, together with the fastening element, serves to fasten the ridge batten.

BRIEF DESCRIPTION OF THE DRAWINGS

The invention is illustrated in more detail in the following description of exemplary embodiments shown in the accompanying drawings. Here it means:

Fig. 1 is a perspective view of a fastener,

Fig. 3 is a partial cross-sectional view of a fastening element with an inserted fastening bolt,

Fig. 3. a partial cross-section of the fastener at the point of the through hole on an enlarged scale,

Fig. 4 shows the embodiment of FIG. 3 in a modified embodiment,

Fig. 5 is a cross-sectional view taken along line V-V in FIG. 3, shows the viewing surfaces for the key on the fastening bolt.

DETAILED DESCRIPTION OF THE INVENTION

In FIG. 1 is a perspective view of a fastening bolt of the invention made of a shaped element 1 which

7, shown on the fastening plate in the shape of an element. folding

U.

together with FIG. 3

The fastening fastening forms an element by means of a punch. The lower base 3 and, according to and to and connected to it, the side arms 3 are always straight, the side arms 3 being at right angles to the bottom base 8. The inner span between the two side arms 3 here corresponds to the usual width of the ridge batten, the height of which should be chosen so as to at least correspond to the height of the side arms 3. The ridge batten can be fastened in the fastening element 1 such that nailed. For this purpose, openings 4 are formed in the side arms 3.

A funnel 5 is formed in the middle of the lower base 8 of the fastener 1, the walls of which extend from the lower base 8 to the opposite side of the side arms 3. As also shown in FIG. 8 in the center of the funnel 5 is formed through a bore 6.

In FIG. 8, in which the fastening element 1 is shown only partially, a fastening bolt 7 is inserted in the through hole 6 at the bottom of the funnel 5. The fastening bolt 7 is designed as a countersunk head screw 8. The sunken head 8 has a dimension corresponding to the funnel shape. 5 of the fastener 1. The edge of the through hole 6 abuts the shaft 9 of the fastening bolt 7.

At a certain distance below the countersunk head 8 of the fastening bolt 7, a circumferential, triangular rib 10 is formed on its shank 9, with its underside facing the tip 11 of the fastening bolt 7 being oblique, while the top 18 is perpendicular to the axis of the fastening bolt 7. The rib 10 on the one hand prevents the fastening element 7 from sliding down the shank 9 and on the other hand forms a bearing surface for the edge of the through hole 6, which can serve as a seal.

At a distance from the rib 10, key surfaces 13 are further formed on the shank 9 of the fastener 7, which are made by cold forming. The surfaces 13 in this case extend only slightly over the circumference of the shank 9 and thus do not prevent the fastening bolt 7 from being pushed through the opening.

In the region of the lower half, the shaft 9 of the fastening bolt 7 is provided with a double-threaded thread 14 which extends to the tip 11 of the fastening bolt 7.

The shape of the key surfaces 15 may be formed as shown in FIG. 5. The key surfaces 15 are here produced by cold pressing of a portion of the shank 9, thereby forming two parallel surfaces on which the key can be fitted. The sliding of the key in both directions of the longitudinal axis of the fastening bolt 7 is thereby prevented in that the shank 9 has a larger diameter in the remaining part compared to the part where the key faces 15 are formed.

Fig. 5 shows an enlarged cross-section of one possible embodiment of the recessed head 8 of the fastening bolt 7 in the funnel 5 formed in the fastening element 1. The edge of the through hole 6 abuts the top 18 of the circumferential rib 10, i.e. the closed circumferential circle. At the same time, the embedded head 8 of the fastening bolt 7 abuts the top edge 15 of the funnel 5, which means that the mounting of the fastening bolt 7 in the fastening element 1 is formed by two circular contact surfaces.

In FIG. 4, another exemplary embodiment is shown in which the edge of the through hole 6 also bears on the shaft 9 of the fastening bolt 7, thereby ensuring tightness along this circular contact. Here, on the contrary, the recessed head 8 of the fastener 7 does not rest on the surface of the funnel 5. Both exemplary embodiments are suitable for the purposes of the invention, the exemplary embodiment of FIG. 3 is qualitatively preferred.

The fastening element as a whole is shown in FIG. 3. The fastening bolt 7 is pushed through the through hole 6 whereby the fastening element 1 is firmly attached to the fastening bolt 7. The roofer then screws the bolt 7 into the ridge purlin with a screwdriver as deeply as it appears to be correct for this purpose.

After all the fasteners have been fastened along the ridge purlin, a ridge batten is inserted between the lateral arms 3 of the gripping element 1. The ridge batten is fixed in place. Subsequently, the correct ridge batten from the ridge batten is set by turning the key. This distance can either be increased or reduced.

The bolt shown in the accompanying drawings can also be used with other fasteners, for example wooden pins, through which it is inserted.

Instead of a sharp-edged double-threaded bolt 7, which is usually rolled, a bolt 7 with an incomplete or non-fully threaded stud can also be used. a weakened thread, which is commonly used in threaded nails that can be hammered in, with the weakened thread used to correct the distance achieved by turning it.

Claims (11)

PATENT CLAIMS A ridge baton fastening element on a ridge purlin comprising a fastener and a bolt, characterized in that the fastener (1) is provided with a through hole (6) through which the fastening bolt (1 ') with the countersunk head (8) is inserted. wherein a shank (9) is provided with a double thread (14), wherein key portions (13) are provided in the shank portion (9) between the countersunk head (8) and the double thread (14) to adjust the ridge batten distance from the ridge purlin. Fastening element according to claim 1, characterized in that the fastening bolt (7) is designed as a countersunk head screw (8). Fastening element according to claim 1, characterized in that the fastening bolt (7) is designed as a nail with a countersunk head thread (8). Fastening element according to one of the preceding claims, characterized in that the design of the fastening bolt (7) prevents it from being spontaneously pulled out of the retaining element (1). Fastening element according to one of the preceding claims, characterized in that a reinforcement is formed under the countersunk head (8) of the fastening bolt (7), in particular in the form of a peripheral rib (10) or a bulge. Fastening element according to one of the preceding claims, characterized in that the passage opening (6) of the gripping element (1) is in the form of a funnel (5). Fastening element according to one of the preceding claims, characterized in that the through-hole (6) in the shape of the funnel (5) of the gripping element (1) is adapted to the shape of the countersunk head (8) of the fastening bolt (7). Fastening element according to one of the claims, characterized in that the key surfaces (15) formed on the shank (9) are cold formed. Fastening element according to one of the preceding claims, characterized in that the retaining element (1) is made of sheet metal. Fastening element according to one of the preceding claims, characterized in that the U-shaped fastening element (1) has an opening (6) formed in the lower base (2), the distance of the side arms (5) of the fastening element (1) corresponding to the usual width of the ridge batten. Fastening element according to one of the preceding claims, characterized in that the fastening bolt (7) is formed by a countersunk head (8) and a shaft (9) provided with a double thread (14), wherein at a point between the countersunk head (8) and the double By means of a thread (14), key surfaces (13) are formed on the shank (9).