Screw-in aid for screwing in a long screw

Description

[0001] The invention relates to a screw-in aid for screwing a long screw into a substrate at a defined screw-in angle, with at least one substrate section for contact with the substrate and at least one screw contact section for contact of the screw thereon, wherein the screw-in angle is formed between these.

[0002] A triangular screw-in aid is known from DE102017119 820 A1. The three sides essentially form a right-angled triangle, with the hypotenuse designed to support a screw. The hypotenuse has an angle near its midpoint, allowing screws to be driven into wood at two different angles. One leg of the triangle serves as a handle, while the other leg provides support on the wood.

[0003] US 2014 / 260814 A1 discloses another screw-in aid. Another screw-in aid is known from DE 10 2016 014 860 B3. US 4,037,632 A discloses a nail-holding device.

[0004] A disadvantage is that the screw can easily slip out of the screwing aid when screwing it in, for example if the user is not careful while screwing it in.

[0005] If a cordless screwdriver is not held precisely in the driving direction, even a slight wobble is often enough to cause the screw to slip out of the screw guide. Furthermore, the screw guide offers limited functionality when considering the steps required to drive a long screw into wood at a specific angle, such as having various bits available or adjusting the distance to a neighboring object.

[0006] The object of the present invention is therefore to provide a screw-in aid that enables the screw to be screwed in safely and preferably offers a wider range of functions.

[0007] The problem is solved according to the invention by a screw-in aid having the features of claim 1.

[0008] The screw-in aid is preferably suitable for driving in long screws longer than 10 cm, especially longer than 15 cm, and preferably longer than 20 cm. For shorter screws, a screw-in aid is generally not necessary, as these can usually be guided sufficiently by hand, i.e., without one. However, particularly in timber construction, for example, roof construction, driving long screws at a specific angle is required to ensure certain load-bearing capacities for the timber beams being joined.

[0009] Preferably, the screw-in aid is suitable for screwing the long screw into the substrate at the defined screw-in angle. The substrate preferably consists of or comprises the following: wood, chipboard, MDF, plastic. The substrate can then be, for example, in the form of battens, beams, especially roof beams, glulam, cross-laminated timber, laminated veneer lumber, or panels.

[0010] Advantageously, the screw mounting section and / or the screw holder have a groove for receiving the screw. This ensures good guidance of the screw on the screwing aid and / or the screw holder.

[0011] The screw holder with the screw mounting section can be locked in place by means of interlocking locking means, in particular locking lugs and locking lug receptacles, and / or can be slid onto it from one end of the same, wherein in particular guide lugs of the screw holder can be slid into guide rails of the screw mounting section.

[0012] Preferably, a second screw mounting section is provided, extending from the free end of the substrate section to the free end of the screw mounting section, so that they form a triangle. This design allows the single screw-in aid to easily provide two screw-in angles.

[0013] In a further embodiment, a second screw mounting section and a second substrate section can be provided, wherein the four sections form a quadrilateral and the substrate sections and the screw mounting sections are opposite each other, with different angles being formed between the respective sections.

[0014] Advantageously, the screw-in aid and / or the screw holder are made of a single piece of plastic.

[0015] The screw-in angle is advantageously between 20-90°, especially 30-75°.

[0016] Preferably, at least one spacer is slidably guided in the substrate section, in particular at a right angle to it, in order to adjust a desired distance of the screw-in aid to an adjacent object, in particular an adjacent wooden beam.

[0017] Advantageously, two spacers are provided, which are arranged particularly at opposite ends of the subsurface section.

[0018] Preferably, one side of the screw contact section facing the screw has at least a section with a hard surface or a hard support to protect the screw contact section from abrasion by the screw when it is screwed in, by making the side of the screw contact section facing the screw from a harder plastic, in particular from a harder plastic than the rest of the screw-in aid, and / or by having a support made of a metal.

[0019] Advantageously, the at least one screw mounting section has at least one magnet to hold the screw on the screw mounting section, especially until the screw holder is arranged on the screw-in aid.

[0020] Preferably, at least one insertion opening for a bit is formed in the substrate section and / or the at least one screw mounting section in order to hold at least one bit for use with a (cordless) screwdriver directly on the screwing aid.

[0021] The base section advantageously features protrusions, particularly pins or grooves, made of metal or plastic, to prevent the screw-in aid from slipping on the surface during use. If these are spaced at specific intervals, especially 1 cm, they can also serve as a scribing aid or for marking.

[0022] In a first embodiment, the screw holder comprises, on the at least one screw contact section, a clamp, in particular a longitudinally displaceable one, on which a cover plate is pivotably mounted, preferably pre-tensioned by means of a spring such that it is pivoted away from the screw contact section in order to allow a screw to be inserted against the screw contact section in this open state, and in a closed state, when the cover plate rests against the screw contact section, to form the closed screw channel (1SK). In this embodiment, the screw can be placed against the screw contact section and then the cover plate can be pivoted manually towards the screw contact section to form an at least partially closed screw channel for guiding the screw. The closed screw channel is thus formed by the screw contact section and the cover plate.The advantageously positioned spring holds the cover plate away from the screw mounting section, allowing a screw to be inserted into the screw mounting section at any time. The screw mounting section and / or the cover plate may have grooves into which the screw can be inserted.

[0023] In a second embodiment, the screw holder comprises a flat base plate for resting against the screw mounting section and forming the screw channel. A semicircular handle extends from one side of the base for handling the screw holder and, optionally, the associated screw-in aid. Four locking feet with locking lugs extend from the other side to engage with guide rails of the screw mounting section. The screw holder can be slid onto the screw mounting section perpendicularly by spreading the locking feet outwards, thus engaging the locking lugs with the guide rails. Alternatively, the screw holder can be slid onto the screw mounting section from one end along its length, with the locking lugs engaging the guide rails.If several guide rails are arranged parallel to each other, the screw holder can be locked into the screw-in aid at different depths, depending on the diameter of the screws.

[0024] In this embodiment, the screw channel is formed by one side of the base or base plate and the screw mounting section. To form or open the screw channel, the screw holder is connected to the screw-in aid, or they are disconnected from each other. Advantageously, a groove can be formed in the base and / or the screw channel to accommodate the screw.

[0025] Further features, details and advantages of the invention will become apparent from the claims and the following description of preferred embodiments, as well as from the drawings. These show: Fig. 1a) a first perspective view, b) a second perspective view, c) a third perspective view, d) a first side view and e) a second side view of the screw-in aid with screw holder according to the invention in a first embodiment, Fig. 2a) a first perspective view, b) a first side view, c) a second side view, d) a third side view, e) a top view and f) a second perspective view of a screw-in aid with screw holder according to the invention in a second embodiment, and Fig. 3a) a third and b) a fourth embodiment in schematic view.

[0026] Fig. 1 The figure shows in various views a screw-in aid 1 according to the invention with screw holder 3.

[0027] The screw-in aid 1 has a triangular shape, in which the longest side of the triangle forms a substrate section 1U1 for contact with a substrate 7 and the two other sides form screw contact sections 1S1, 1S2 for contact with screws 5.

[0028] The base section 1U1 has a series of insertion openings 13 for bits. Two spacers 11 are slidably guided within the base section 1U1, perpendicular to its longitudinal extent. The two spacers 11 have detent recesses 9A for detent lugs (not shown) arranged in the base section 1U1. The detent recesses are arranged at regular intervals and can thus be displaced relative to the base section 1U1 to a defined extent. The two spacers 11 have a 90° angle at one end, forming a foot for contact with any object. Using the two spacers 11, the screw-in aid 1 can be positioned at a defined distance from another object.For example, if two beams need to be positioned at a defined distance from each other during roof construction, or if screws need to be screwed in at a defined distance from another object, this distance can be adjusted using the spacers 11. The two spacers 11 are positioned at opposite ends of the substrate section 1U1 to ensure that the screwing aid 1 is positioned as stably as possible relative to another object via the spacers 11.

[0029] The underside of subsurface section 1U1 is best viewed by Fig. 2f This relates to a further embodiment of the screw-in aid 1, in which, however, the underside of the substrate section 1U1 is identical in construction to the present embodiment. Several grooves 1R run parallel to each other perpendicular to the substrate section 1U1 to prevent the screw-in aid 1 from slipping on a substrate 7. Furthermore, the underside has several pointed projections 1V to prevent the screw-in aid 1 from slipping on the substrate 7.

[0030] The two screw assembly sections 1S1 and 1S2 run at different angles to the substrate section 1U1: the shorter section runs at an angle of 45° and the longer section at an angle of 60° to the substrate section 1U1. Otherwise, the two sections are identical in construction.

[0031] In the direction of extension of both screw mounting sections 1S1 and 1S2, a groove 1N runs centrally to receive a screw 5. The groove 1N has a cross-sectional area that is essentially V-shaped. A support 1A for the screw 5, made of spring steel and firmly snapped to the respective screw mounting section 1S1, is arranged in both grooves 1N. The support 1A protects the screw mounting section 1S1 from friction during screw insertion, which would otherwise damage the screw mounting section 1S1.

[0032] Guide rails 9A are arranged on opposite sides of each screw assembly section 1S1, 1S2, running parallel to each other. A insertion surface 9E is formed on each of the two opposite sides of the guide rails 9A, once in the middle and once at the end. The insertion surfaces 9E serve to insert locking feet 3R of the screw holder 3, as described below.

[0033] The screw-in aid 1 is made of a single piece of plastic. The supports 1A are made of spring steel and are snapped into the respective groove 1N. The spacers 11 are also made of a single piece of plastic. Alternatively, the screw-in aid 1 is assembled from two halves (divided lengthwise in the middle) and then joined together.

[0034] The screw holder 3 has a rectangular base 3B. A semicircular handle 3H extends to one side of the base 3B for handling the screw holder 3H (and any screw-in aid 1 that may be attached to it). Four locking feet 3R extend to the other side, with locking lugs 9N at their free ends for engaging guide rails 9A of the screw engagement section 1S1, 1S2. The screw holder 3 is manufactured in one piece from plastic.

[0035] There are two ways to connect the screw holder 3 to the screw-in aid 1. The first way is to attach the screw holder 3 from the in Fig. 1a ) lower end of screw mounting section 1S1 onto screw mounting section 1S1. A second possibility is to slide the screw holder 3 onto screw mounting section 1S1 perpendicularly so that the locking feet 3R engage in the insertion surfaces 9E. Subsequently, the screw holder 3 can be oriented in the Fig. 1a The screws are moved downwards so that the locking lugs 9N of the locking feet 3R engage again in the guide rails 9A of the respective screw mounting sections 1S1 and 1S2. If the screw holder 3 is connected to the screw-in aid 1, a screw channel 1SK is formed between them, within which a screw 5 can be guided during screwing. The screw channel 1SK is completely closed so that the screw 5 cannot slip out of it.

[0036] The screw holder 3 can be positioned at different distances from the screw-in aid 1 due to the multiple, parallel guide rails 9A of the screw-in sections 1S1, 1S2. This allows screw channels of different dimensions to be formed, so that the screw channel 1SK can be adapted to the respective diameter of a screw 5 to be screwed in. If the screw 5 has a small diameter, the screw holder 3 can be locked tightly or close to the screw-in aid 1, i.e., with in Fig. 1a ) right-hand guide rails 9A of the screw mounting section 1S1. If the screw 5 has a large diameter, the screw holder 3 can be locked at a greater distance from the screw-in aid 1, i.e. with in Fig. 1a ) left-hand guide rails 9A of the screw assembly section 1S1.

[0037] Example of the use of the screw-in aid 1 with screw holder 3: The screw-in aid 1 is arranged with its base section 1U1 on a wooden beam as the base 7 of a roof truss, see. Fig. 1e Using the spacers 11, a distance to an adjacent wooden beam of the roof truss is set. A wood screw 5 is positioned in the groove 1N of the screw guide section 1S1, with the tip of the screw 5 positioned on the wooden beam at the point where it is to be screwed in. The screw holder 3 is then locked onto the screw guide 1 to form a screw channel 1SK. The screw holder 3 is positioned as close as possible to the screw guide 1 to create the narrowest possible screw channel 1SK. The screw 5 is then screwed into the wooden beam using a cordless screwdriver, sliding along the screw guide section 1S1 as it is driven in. Once the screw 5 is sufficiently deep in the wooden beam and has found its correct orientation, the screw holder 3 can be released from the screw guide 1, and both can be removed from the screw 5.Finally, the screwing process is continued until screw 5 is countersunk into the wooden beam to the desired extent.

[0038] Fig. 2 Figure 1 shows a further embodiment of the screw-in aid 1 with screw holder 3 in various views, with only the differences being discussed below. The figure in Fig. 2a A clamp 3K is arranged on the left screw mounting section 1S1. The clamp 3K is slid onto the screw mounting section 1S1 and snaps into place with it. The clamp 3K is made of spring steel and has a cross-sectional shape that is essentially U-shaped. A cover plate 3A is hinged to the clamp 3K, and a spring (not shown) moves the cover plate 3A into the Fig. 2a The position shown is where the cover plate 3A is pivoted away from the screw mounting section 1S1. The in Fig. 2a The position shown is the open position, in which a screw 5 can be inserted into the groove 1N of the screw mounting section 1S1. Once a screw 5 is in the groove 1N, the screw mounting section 1S1 can be gripped by hand so that the cover plate 3A pivots towards the screw mounting section 1S1 and presses the screw 5 into the groove 1N. This is the closed position of the cover plate 3A, in which the screw 5 can, for example, be screwed into a wooden beam.

[0039] The use of the screw-in aid 1 with screw holder 3 is described as follows: The screw-in aid 1 is positioned on a wooden beam, and the desired distance is set using the spacers 11. A screw 5 is placed in the groove 1N of a screw guide section 1S1. One hand grasps the clamp 3K and the cover plate 3A, which presses the screw 5 through the cover plate 3A into the groove 1N. The screw 5 is then screwed into the wooden beam using a cordless screwdriver. Once the screw 5 is screwed in far enough, the hand can be removed from the screw guide section 1S1, 1S2, which causes the cover plate 3A to return to its open position. Fig. 2a moved. Now the screwing aid 1 can be removed from screw 5 and screw 5 can be screwed in further.

[0040] Fig. 3a Figure 1 schematically shows a third embodiment of the invention. In contrast to the two embodiments described above, a screw-bearing section 1S2 has been removed, so that the screw-in aid 1 has only a base section 1U1 and a screw-bearing section 1S1; i.e., the screw-bearing section 1S2 has simply been cut out. The screw-in aid 1 of Fig. 3a is therefore simply an angle formed by the substrate section 1U1 and the screw mounting section 1S1. The screw-in aid of the Fig. 3a can be a screw holder 3 according to Fig. 1 as well as one according to the Fig. 2 exhibit.

[0041] The screw holder of the Fig. 3b The device has two opposing base sections 1U1, 1U2 and two opposing screw mounting sections 1S1, 1S2, each with different screw-in angles 1E between them. An advantage of this design is that a long base section 1U2 can be formed, which allows for good handling and gripping of the screw-in aid 1. Bezugszeichenliste

[0042] 1 Screw-in aid 1A Screw support 1E Screw-in angle 1N Groove for screw 1R Groove to prevent the screw-in aid from slipping on the substrate 1S1 (first) screw contact section for contact with a screw 1S2 (second) screw contact section for contact with a screw 1SK Screw channel 1U1 (first) substrate section for contact with the substrate 1U2 (second) substrate section for contact with the substrate 1V Projection to prevent the screw-in aid from slipping on the substrate 3 Screw holder 3A Cover plate 3B Base 3H Handle (semicircle) 3K Clamp 3R Locking foot 5 Screw 7 Substrate 9A Locking lug receptacles or guide rails 9E Insertion surface 9N Locking lugs or guide lugs 11 Spacer 13 Insertion hole for a bit

Claims

1. Screw-in aid for screwing a long screw (5) into a substrate (7) at a defined screw-in angle (1E), having at least one substrate portion (1U1) for bearing against the substrate (7) and at least one screw bearing portion (1S1) for bearing against the screw (5), the screw-in angle (1E) being formed between them, a screw holder (3) being arranged, in particular releasably, on the screw bearing portion (1S1), which screw holder (3) forms between them (1S1, 3) a screw channel (1SK), which is closed in particular circumferentially, for the screw (5), in order to guide the screw (5) during screwing into the substrate (7); the screw holder (3) being able to be latched to the screw bearing portion (1S) by means of latching means which engage in one another, in particular latching lugs and latching lug receptacles (9A, 9N), and / or the screw holder (3) being able to be pushed onto the screw bearing portion (1S) by means of the latching means which engage in one another from one end of the latter, wherein in particular guiding lugs (9N) of the screw holder (3) are able to be pushed into guide rails (9A) of the screw bearing portion (1S).

2. Screw-in aid according to the preceding claim, the screw bearing portion (1S) and / or the screw holder (3) having a groove (1N, 3N) for receiving the screw (5) therein.

3. Screw-in aid according to one of the preceding claims, characterized by a second screw bearing portion (1S2) which extends from the free end of the substrate portion (1U) to the free end of the screw bearing portion (1S), such that the latter form a triangle (1U, 1S1, 1S2).

4. Screw-in aid according to one of Claims 1-3, characterized by a second screw bearing portion (1S2) and a second substrate portion (1U2), the four portions forming a quadrilateral and the substrate portions (1U1, 1U2) and the screw bearing portions (1S1, 1S2) lying opposite one another, wherein different angles are formed in each case between the respective portions (1S1, 1S2, 1U1, 1U2).

5. Screw-in aid according to one of the preceding claims, the screw-in aid (1) and / or the screw holder (3) consisting, in particular integrally, of plastic.

6. Screw-in aid according to one of the preceding claims, the screw-in angle (1E) lying between 20-90°, in particular 30-75°.

7. Screw-in aid according to one of the preceding claims, at least one spacer (11) being guided displaceably in the substrate portion (1U1), in particular at right angles thereto, in order to set a desired distance of the screw-in aid (1) from an adjacent object, in particular an adjacent wooden beam.

8. Screw-in aid according to Claim 7, characterized by two spacers (11) which are arranged, in particular, at opposite ends of the substrate portion.

9. Screw-in aid according to one of the preceding claims, a side of the screw bearing portion (1S) which faces the screw (5) having, at least in portions, a hard surface or a hard overlay (1A), in order to protect the screw bearing portion from abrasion by the screw (5) during screwing in of the latter, by the side of the screw bearing portion (1S) which faces the screw (5) being formed from a harder plastic than the rest of the screw-in aid (1) and / or having an overlay (1A) made of metal.

10. Screw-in aid according to one of the preceding claims, the at least one screw bearing portion (1S) having at least one magnet, in order to hold the screw (5) on the screw bearing portion (1S), in particular until the screw holder (3) is arranged on the screw-in aid (1).

11. Screw-in aid according to one of the preceding claims, at least one insertion opening (13) for a bit being formed in the substrate portion (1U) and / or the at least one screw bearing portion (1S), in order to hold at least one bit directly on the screw-in aid for use with a screwdriver.

12. Screw-in aid according to one of the preceding claims, the substrate portion (1U) having projections (1V), in particular pins, or grooves (1R), made of metal or plastic, in order thus to avoid slipping of the screw-in aid (1) on the substrate (7) during use.

13. Screw-in aid according to one of the preceding claims, the screw holder (3) comprising, on the at least one screw bearing portion (1S), a clamp (3K) which is displaceable, in particular longitudinally, and on which a cover plate (3A) is mounted pivotably, preferably biased by means of a spring, such that it is pivoted away from the screw bearing portion, in order, in this open state, to allow a screw (5) to bear against the screw bearing portion (1S), and, in a closed state, when the cover plate (3A) bears against the screw bearing portion (1S), to form the closed screw channel (1SK).

14. Screw-in aid according to one of Claims 1-13, the screw holder (3) having a planar base (3B), from which a semicircular holding handle (3H) extends on one side and from which four latching feet (3R, 9N) with latching lugs (9N) extend on the opposite side, in order to latch said latching lugs to guide rails (9A) of the screw bearing portion.