AT5013U1 - MOUNTING DEVICE FOR SETTING FASTENERS WHEN JOINING OVERLAPED BEAMS AT THEIR END - Google Patents

Abstract

In a mounting device for setting screws (2) when connecting wooden beams (3, 4) that overlap at their ends, there is a fixed stop (8) and an adjustable stop (9) on a base frame (7) in the manner of a screw clamp Clamping element provided. On this base frame (7) in the area between the fixed and the adjustable stop (8, 9) are displaceable and with regard to the distance to the fixed stop (8) and the thickness of the wooden beams (3, 4) to be screwed together, supporting parts ( 10, 11) held. These support parts (10, 11) are each provided with one or more than one sleeve (12) forming a guide for the screws (2) to be screwed in. Guide elements (21) are also arranged on the support parts (10, 11) for the displaceable receiving of a screwdriver (22).

Description

AT 005 013 Ul

The invention relates to a mounting device for setting screws when connecting wooden beams overlapping at their ends.

Assembly devices for connecting wooden beams that overlap at their ends are fundamentally different in structure, depending on the type of connection to be used. If parts to be pressed into the surface of the same are provided between the wooden beams, then a type of clamp is usually required, which usually also has to be hydraulically operable in order to be able to apply the required forces. Even when nailing overlapping wooden beams, it is necessary to press the two overlapping ends against one another, for example by means of screw clamps, so that nails penetrating both wooden beams can then be hammered in.

The present invention has for its object to provide a mounting device of the type mentioned, with which the overlapping ends of wooden beams can be connected by screws in a simple but effective manner.

According to the invention this is achieved in that a fixed stop and an adjustable stop with a clamping element are provided on a base frame in the manner of a screw clamp, and in that this base frame is displaceable in the region between the fixed and the adjustable stop and with regard to the distance to the fixed stop and for the thickness of the wooden beams to be screwed together, supporting parts are held, each of which is provided with one or more than a sleeve forming a guide for the screws to be screwed in.

These measures according to the invention make it possible for the wooden beams, which overlap at their ends, to be pressed against one another, that an exact screwing in of the generally very long screws is ensured in an optimal orientation, and that, in addition, the screws to be screwed in at the right place of the to be connected Wooden beams are used.

An optimal mutual fastening of the wooden beams, which overlap at their ends, is possible if the screws screwed in next to each other in essentially parallel planes intersect at a definable angle and if these screws are at least approximately at the same height in the area of the adjacent ones Cross the surfaces of the overlapping wooden beams. 2 AT 005 013 Ul

By means of the assembly device according to the invention, on the one hand, the wooden beams, which overlap at their ends, can be compressed, and on the other hand, an exact setting possibility of the supporting parts has been created, in order to thereby set up the guide for the screw-forming sleeves in adaptation to the dimensions of the wooden beams can.

It is also provided that the sleeve (s) is or are oriented at an angle of 45 ° to the plane of displacement of the supporting parts. This means that the screws are precisely aligned from the outset. If it is then also provided that the sleeve (s) is or are oriented at an angle of 45 ° to the plane of displacement of the supporting parts and point in opposite directions in the two supporting parts, so that the sleeves of the two supporting parts have an angle of 90 ° include with each other, then it is also ensured that when the supporting parts are set correctly, the screws to be screwed in intersect in the area of the mutual contact surfaces of the wooden beams to be connected. This results in a pair of screws crossing each other, one screw being loaded under tension and the other screw under pressure.

So that an exact arrangement of the screwed-in screws in the wooden beams is guaranteed from the outset, it is provided in the assembly device that the sleeves of the two supporting parts are arranged offset relative to one another in relation to vertical planes conceived by their central axes. The screws, which cross each other in pairs, therefore lie on the one hand in planes oriented parallel to one another and on the other hand in planes running at right angles to them and at least approximately at right angles with one another.

From a design point of view, it proves to be particularly advantageous that the supporting parts are held on the guide rails of the base frame such that they can be moved and locked, and that these guide rails are also designed to hold the adjustable stop with the clamping element. This results in a relatively simple construction, whereby the transmission of force when the wooden beams are compressed and during the screwing-in process can also be optimized.

It is also proposed that the same dimensions or markings are provided as setting specifications for the supporting parts on the base frame or on the guide rails. In this way, it is possible to achieve an exact setting of the supporting parts in advance with regard to the dimensions of the wooden beams to be connected. It can be determined in advance that the screws have an exact position with regard to the wooden beams to be connected.

So that good workability of the screws is also made possible for the operator of the assembly device, it is provided that guide elements for guiding and displaceably receiving a screwdriver are formed or arranged on the supporting parts. It is therefore ensured that the screwdriver used is held and guided in exact alignment with the screws to be screwed in, so that errors can hardly occur. Both the tool attack in the screw 3 AT 005 013 Ul ben, as well as the screwing tool itself remain intact, whereby in particular the screwing tool can be used many times more.

It is advantageous if the guide elements are designed as axially parallel to the sleeve or sleeves, which can be inserted and fixed in clamping sleeves arranged on the supporting parts. As a result, the guide elements for the screwdriver can be assembled quickly, with no bulky and protruding parts being present, in particular for transport purposes of the assembly device.

It has a particularly advantageous effect that the center axes of two sleeves per support part have the same distance from the center axis of the guide element for the screwdriver. The assembly device can thus be used to set two pairs of screws or one pair of screws at a greater distance from one another, the same guide element always being effective for the screwdriver. Whether a screw is screwed into one or the other sleeve, there is always the same guide element for the screwdriver, only the screwdriver having to be turned by a corresponding angular range around this guide element.

An advantageous embodiment provides that the support parts on the support side of the base frame engage under the guide rails and form a support plate which is guided over the entire width of the support parts to support the assembly device on the wooden beams to be connected. It is precisely from these supporting parts that a stop area is created, so that there is also a guarantee that the top of the wooden beams to be connected to one another is aligned flush. However, this also ensures that the screws to be screwed in are held in a guide up to directly or relatively close to the surface of the wooden beam.

A further embodiment variant is characterized by a stop or visible part which is arranged or formed on the base frame or on the supporting parts for positioning the assembly device in an accurate position relative to the end of one of the wooden beams to be connected.

Seen in the longitudinal direction of the wooden beams, it is therefore possible to optimally adjust the mounting device and thus to achieve an optimal setting arrangement for the screws.

An advantageous structural design is seen in the fact that the screwdriver, which is guided on a guide element and is displaceable, is fastened by means of a holder encompassing the guide element. In this way, optimal guidance of the screwdriver, but also a firm mounting of the same, is possible. 4 AT 005 013 Ul

In this context, it is advantageous that an adjustable stop, which interacts with the supporting part or with the clamping sleeves connected to the supporting part, is provided on the holder and acts as a depth stop for the screwdriver. In this way it is possible to achieve an exact screw-in depth of the screws to be screwed in, since the screws and their screw-in position are not clearly visible during the screwing-in process and especially when the mounting device is installed. This enables the screws to be set correctly.

Another constructively advantageous measure is seen in the fact that the holder for the adjustable stop is adjustable in steps on the guide rails and can be locked to these by means of transversely push-through bolts, the clamping element being designed as a threaded spindle provided with a stop part and an actuating handle. In this way, a quick, rough adjustability of the adjustable stop is possible if a change is to be made to wooden beams of different dimensions, and in addition there is a pressing possibility in the manner of a screw clamp for pressing together the ends of the wooden beams to be connected.

An advantageous measure is also seen in the fact that if there is more than one sleeve on a support part, these sleeves are of different colors. In this way, it can be visually indicated in which sleeves screws are to be inserted in order to achieve a correct arrangement of screws crossing in pairs.

Further features according to the invention and special advantages are explained in more detail in the following description with reference to the drawings. Show it:

Figure 1 shows a roof structure with coupling purlins shown schematically in an oblique view.

FIG. 2 shows an enlarged representation of a partial area from FIG. 1, from which the ends of two overlapping wooden beams can be seen, which are screwed together to form a continuous coupling purlin;

3 shows a vertical section through this connection area between two wooden beams;

4 shows a side view of the assembly device according to the invention;

Figure 5 is an oblique view of the assembly device in use when connecting two ends of wooden beams. 5 AT 005 013 Ul

Fig. 6 to Fig. 8 sections through the connection area between two wooden beams, each with a mounting device attached, different settings being evident from different cross-sectional shapes of the wooden beams.

The assembly device 1 according to the invention is used to set screws 2 when. Connecting wooden beams 3 and 4 overlapping at their ends. Such wooden beams 3, 4 overlapping at their ends are present, for example, in a roof structure for the formation of coupling purlins, as can also be seen from FIGS. 1 and 2 of the drawings. The assembly device 1 is not only suitable for use with coupling purlins, but basically for connecting overlapping wooden beams. There is therefore optimal use whenever two wooden beams aligned parallel to one another are to be connected to one another or else at a distance from one another. In this way, wooden beams lying at a distance from one another are also to be connected to one another, in which case spacing elements must be inserted if compression is required beforehand. The spacing is then guaranteed by using threaded areas of a screw.

In an application as shown in FIGS. 1 and 2, it is advantageous to place the beams 3 and 4 forming the coupling purlins on the beams 5 forming the roof pitch. So that these wooden beams 3 and 4 cannot move along the beam 5, it is possible to use angle elements 6 which are screwed onto the beams 5 and the wooden beams 3 and 4, respectively. Here, too, the direct use of screws without additional resources is conceivable.

From Fig. 3 it can be seen that advantageously two screws 2 are screwed in mutually parallel planes transversely to the longitudinal direction of the beams 3 and 4, these screws 2 preferably crossing at an angle of 90 ° and usefully screwed in from opposite directions.

The assembly device 1 used here according to the invention for setting the screws 2 essentially consists of a base frame 7 with a fixed stop 8 and an adjustable stop 9 as well as displaceable and lockable supporting parts 10 and 11, which form sleeves 12 as a guide for the screws 2 to be screwed in. The fixed stop 8 can for example be formed by a profile piece 13. In principle, an adjustment possibility is also conceivable with the fixed stop 8, but adjustment on one side will generally suffice. The holder 14 for the adjustable stop 9 is displaceable on the guide rails 15 and thus held adjustable, wherein locking with the guide rails 15 is possible via transversely insertable bolts 16. To compress the two wooden beams, a clamping element is then provided which, in the construction provided here, has a stop part 17 and an actuating handle 18 with a threaded spindle 19 in between. As a rule, this arrangement is sufficient for the wooden beams to be sufficiently compressed. In this context, it would also be conceivable to provide a clamping element with a corresponding lever in order to be able to apply greater forces. It would also be possible to provide a key attack in order to cause the two mutually facing surfaces of the wooden beams to be pressed together in the event of twisted wooden beams.

The sleeves 12 are aligned at an acute angle to the plane of displacement of the supporting parts 10 and 11, this angle preferably being 45 °. The optimal effect is thus achieved that the screws to be screwed in, which are arranged in parallel spaced planes, cross each other at approximately an angle of 90 °. On the two support parts 10 and 11, the sleeves 12 arranged there point in opposite directions, so that these sleeves 12 of the two support parts 10, 11 enclose an angle of approximately 90 ° with one another.

The sleeves 12 of the two supporting parts 10, 11 are arranged offset from one another in relation to the vertical planes conceived by their central axes, so that after the appropriate adjustment of the assembly device and therefore after appropriate fixing to the wooden beams 3 and 4 it is ensured that the screws 2 are spaced apart and are arranged in mutually parallel planes, which are also at right angles to the longitudinal extent of the beams 3 and 4.

The support members 10 and 11 are slidably and securely held on the guide rails 15 of the base frame 7, so that the guide rails 15 serve both as a holder and guide for the support members 10 and 11, and for the adjustable stop 9.

On the base frame 7, preferably on the guide rails 15, dimensions or markings are available as setting specifications for the supporting parts 10 and 11. Measuring tapes can be applied or printed here, or there can be color markings for certain recurring applications. It is thus possible in a quick and simple manner to determine the exact arrangement of the finished screws 2 in the wooden beams 3 and 4, since this depends on the size and thus also the cross-sectional shape of the wooden beams 3, 4 to be connected to one another. These different settings can also be seen very clearly in FIGS. 6 to 8. A fixing possibility for the support parts 10, 11 is provided, for example, by corresponding clamping screws 20.

Guide elements 21 are arranged on the supporting parts 10, 11 for receiving a screwdriver 22 in a displaceable manner. The screwdriver 22 is fastened to the guide elements 21 by means of a holder 23 each encompassing a guide element 21. A stop 24 is adjustably held on the holder 23, for example by means of a rod 25 in a guide sleeve 26, wherein clamping can take place via a clamping element 27. This stop 24 interacts with a section of the supporting parts 10 and 11, for example with the upper end section 28 of clamping sleeves 29 provided on the supporting part 10, 11. The 7 AT 005 013 Ul guide elements 21 are also inserted into these clamping sleeves 29, which from achsparalle! tubes aligned with the sleeves 12 are formed. These tubes are then inserted into the clamping sleeves 29 arranged on the support parts 10, 11 and can be fixed there by a corresponding clamping element 30.

Bel two arranged sleeves 12 on each of the support members 10, 11 have their central axes at the same distance from the central axis of the guide element 21 for the screwdriver 22. Screws can therefore be screwed into one of the two desired sleeves 12 from a single guide element 21.

From the figures it can also be seen that the support parts 10, 11 engage under the guide rails 15 on the support side of the base frame, a support plate 31, 32 being present over the entire width of the support parts 10, 11, which is also used to support the mounting device 1 serves on the wooden beams 3, 4 to be connected.

A stop or visible part can be arranged or formed on the base frame 7 or on the supporting parts 10 or 11 in order to enable the assembly device 1 to be positioned precisely relative to the respective end of one of the wooden beams 3, 4 to be connected.

So that it is also possible to visually see where screws are to be inserted so that they are arranged in pairs, the sleeves 12 on each support part 10, 11 can be of different colors, for example the same colors on the sleeves 12 of the two support parts 10, 11 are provided, in which screws must be inserted in order to be able to effect a correct pairwise setting of the screws.

Within the scope of the invention, various design changes are of course possible, but the essential measure must always be that there is at least one adjustable stop, and that sleeves for guided insertion of the screws are provided on corresponding support parts, which are also adjustable. 8th

Claims (15)

AT 005 013 Ul claims 1. Mounting device for setting screws when connecting each other at their ends overlap the wooden beam, characterized in that a fixed stop (8) and an adjustable stop (9) on a base frame (7) in the manner of a screw clamp are provided with a clamping element, and that this base frame (7) is displaceable in the area between the fixed and the adjustable stop (8, 9) and with regard to the distance to the fixed stop (8) and the thickness of the wooden beams to be screwed together ( 3, 4) are held supporting parts (10, 11) which are each provided with one or more than one sleeve (12) forming a guide for the screws (2) to be screwed in. 2. Mounting device according to claim 1, characterized in that the sleeve (s) (12) is or are oriented at an angle of 45 ° to the plane of displacement of the supporting parts (10, 11). 3. Mounting device according to claims 1 and 2, characterized in that the sleeve (s) (12) is or are at an angle of 45 ° to the plane of displacement of the supporting parts (10, 11) and are in the two supporting parts (10, 11) point in opposite directions so that the sleeves (12) of the two supporting parts (10, 11) enclose an angle of 90 ° with one another. 4. Mounting device according to claims 1 to 3, characterized in that the sleeves (12) of the two supporting parts (10, 11) are arranged offset from one another in relation to vertical planes conceived by their central axes. 5. Mounting device according to one of claims 1 to 4, characterized in that the supporting parts (10, 11) on guide rails (15) of the base frame (7) are held displaceably and lockably and these guide rails (15) also for holding the adjustable stop ( 9) are formed with the clamping element. 6. Mounting device according to one of claims 1 to 5, characterized in that on the Grundge stell (7) or on the guide rails (15) the same dimensions or markings are provided as setting specifications for the supporting parts (10, 11). 7. Mounting device according to one of claims 1 to 6, characterized in that on the Tragtei len (10, 11) guide elements (21) for guided displaceable receiving a screwdriver (22) are formed or arranged. 9 AT 005 013 Ul 8. Mounting device according to claim 7, characterized in that the guide elements (21) are designed as axially parallel to the or the sleeve (s) (12) aligned tubes, which in the support parts (10, 11) arranged clamping sleeves (29 ) can be used and fixed. 9. Mounting device according to claim 7 or 8, characterized in that with two sleeves (12) per support part (10, 11) whose central axes have the same distance from the central axis of the guide element (21) for the screwdriver (22). 10. Mounting device according to one of claims 1 to 9, characterized in that the support parts (10, 11) on the support side of the base frame (7) engage under the guide rails (15) and one over the entire width of the support parts (10, 11) Support plate (31, 32) form to support the assembly device (1) on the wooden beams (3, 4) to be connected. 11. Mounting device according to one of claims 1 to 10, characterized by a on the base frame (7) or on the support parts (10, 11) arranged or designed stop or visible part for accurate positioning of the mounting device (1) based on the end of each one of the wooden beams to be connected (3,4). 12. Mounting device according to one of claims 1 to 11, characterized in that the on a guide element (21) guided displaceable screwdriver (22) is fastened via a holder (23) encompassing the guide element (21). 13. Mounting device according to claim 12, characterized in that on the holder (23) an adjustable, with the support member (10,11) or with the support member (10,11) connected to the clamping sleeves (29) cooperating stop (24) is provided , which acts as a depth stop for the screwdriver (22). 14. Mounting device according to one of claims 1 to 13, characterized in that the holder (14) for the adjustable stop (9) is adjustable in steps on the guide rails (15) and can be locked via transversely insertable bolts (16), the Clamping element is designed as a threaded spindle (19) provided with a stop part (17) and an actuating handle (18). 15. Mounting device according to claims 1 to 4, characterized in that with more than one sleeve (12) on a support member (10, 11), these sleeves (12) are of different colors. 10