Drilling device

Abstract

Hand-operated drilling device (1) for setting multiple holes, in particular WC wall mounting openings, comprising - a drive shaft (2) which drive shaft (2) can be connected to a drill chuck of a drilling drive unit, in particular a drilling machine, - at least two output shafts (3), each designed to receive and / or drive a drill (4), and - a transmission (5) wherein a rotational movement of the drive shaft (2) can be transmitted to the at least two output shafts (3) by means of the transmission (5).

Description

[0001] The present disclosure relates to a hand-operated drilling device for setting multiple holes, in particular for standardized WC wall brackets.

[0002] The following section will explain the state of the art regarding openings for toilet pre-wall mounting brackets. However, the same applies generally to multiple drill holes.

[0003] In known and popular designs of toilet installations, it is usually the case that the toilet installation is attached to a wall via a pre-wall bracket - so to speak, suspended.

[0004] The wall-mounted bracket is usually recessed into the wall or projected onto the wall and covered, so that it is not visually noticeable.

[0005] For this purpose, it is known to integrate appropriate wall brackets into recesses in walls or, for example, into hollow walls (as is the case with plasterboard walls or drywall partitions).

[0006] The wall-mounted bracket is then concealed by cover elements such as plasterboard walls, wall mounting plates, wooden panels, tiles and similar materials, with fastening screws and supply and drainage channels for the toilet system passing through these cover elements from the wall-mounted bracket.

[0007] In designs using plasterboard walls, it is known from the prior art to make them double due to the stresses, whereby two plasterboard panels are arranged one above the other.

[0008] The toilet unit is then attached to the wall using these mounting elements, and the supply or drainage elements and / or pipe connections are connected to the toilet unit.

[0009] However, in order to create suitable openings in these cover elements, such as wooden boards, panels, tiles and / or plasterboard, for the insertion of the fastening elements and the pipe connections, it is known to make a corresponding hole and / or bore for each of these elements using a hand drill.

[0010] For this, it is necessary to first precisely determine, measure and mark where each of the required holes and their arrangement relative to each other is to be placed, and then to drill each hole individually with a suitable drill bit.

[0011] Since the individual holes have different drill diameters (usually 3 different drill diameters are required for a WC wall bracket), it is also necessary to provide the appropriate drill bits on site and to change the drill bits between drilling the holes.

[0012] Of course, the individual openings can also be created using other manufacturing processes, such as the application of a jigsaw or similar tools.

[0013] However, the disadvantages are the relatively high time and effort required to arrange and carry out the individual openings, as well as the imprecise geometric shapes that result from this method.

[0014] Furthermore, the current state of the art results in a high susceptibility to errors, as each individual hole must be measured and marked relative to the others, the surroundings, and the wall bracket.

[0015] It is known from the prior art to use appropriate drilling jigs, whereby the individual holes and the arrangement of the holes relative to each other are already predetermined by means of a template, so that this template can be used to simplify the determination of the position and the marking on a corresponding wall element, cover element or on the wall.

[0016] However, the disadvantage remains that each individual hole must be drilled by hand, and the template must, of course, be correctly measured, positioned, and used. It should be noted that such templates serve only as an aid for marking.

[0017] The purpose of the present disclosure is therefore to provide a hand-operated drilling device which at least partially improves the aforementioned disadvantages of the prior art and / or enables a more efficient and / or simpler and / or faster and / or more accurate way of drilling multiple holes - especially for a WC wall mounting opening.

[0018] This problem is solved in the course of the invention by a hand-operated drilling device for setting multiple boreholes, in particular WC wall mounting openings, with the features of claim 1.

[0019] According to the disclosure, a hand-held drilling device for setting multiple holes, in particular WC wall mounting openings, comprises the following: - a drive shaft, which is a drive shaft that can be connected to a drill chuck, a drill drive unit, in particular a drill, - at least two output shafts, each designed to hold and / or drive a drill bit and - a transmission, wherein a rotational movement of the drive shaft can be transmitted to at least two output shafts by means of the transmission.

[0020] Through a manifestation of a hand-operated drilling device, it is now possible to drill several holes simultaneously via the at least two output shafts, whereby the positioning of the at least two output shafts and the drills connected or connectable to them is already determined by the drilling device.

[0021] This makes it possible for specialists to drill several holes simultaneously in a single step, for example for a WC wall mounting opening, without having to measure them in a time-consuming way and then implement each one individually in different diameters.

[0022] Another advantage is that the individual drill bits are held and positioned relative to each other by the drilling device, which aligns the holes when drilling, resulting in a parallel alignment of the holes and / or openings and preventing the individual holes from being "crooked" relative to each other, which could be problematic during subsequent assembly, for example of a toilet system.

[0023] It may be provided that the drilling drive unit, in particular the drilling machine, is designed as a hand drill, preferably even as a cordless drill, or a hammer drill or the like.

[0024] The hand-held drilling device can be a portable drilling device, whereby the drilling device can be carried by skilled personnel without additional aids.

[0025] A hand-operated drilling device is to be understood as a drilling device which, in terms of dimensions and weight, is of a size which is reasonable for skilled personnel under employee protection agreements and laws, whereby carrying, lifting and operating the drilling device is also possible and reasonable for skilled personnel over a longer period of time.

[0026] It may be intended that a device as disclosed will be used in known embodiments of the prior art - as described, for example, in the introduction to the description - and / or used in corresponding work.

[0027] The use of a drilling device designed for drilling multiple holes may be intended when drilling multiple holes, in particular for WC wall mounting openings.

[0028] Advantageous embodiments of the invention are defined with reference to the dependent claims.

[0029] It may be provided that a housing, preferably essentially flat, is provided in which the gearbox is arranged.

[0030] A housing that is essentially flat can be understood as a housing which, for example, has a significantly smaller dimension in a longitudinal direction of the drive shaft and / or the at least two output shafts than transversely, and especially preferably perpendicularly, to it.

[0031] It may be provided that the housing has at least one holding device, preferably a handle.

[0032] Preferably, the drive shaft may pass through a first housing wall and / or the at least two output shafts may pass through a second housing wall, preferably wherein the first housing wall and the second housing wall are arranged on opposite sides of the housing.

[0033] It may be provided that the housing has two housing parts, in particular shell-shaped ones, preferably which two housing parts are designed to accommodate the gearbox.

[0034] It may be provided that the two housing parts are fastened and / or can be fastened together by a screw connection.

[0035] It may be provided that a first housing part of the two housing parts has the first housing wall and / or a second housing part of the two housing parts has the second housing wall.

[0036] Preferably, the transmission may include a belt, preferably a toothed belt, and a pulley.

[0037] It may be provided that the gearbox also and / or additionally has at least one tensioning roller, preferably to tension the belt.

[0038] Alternatively or additionally, it can also be provided that the transmission has at least two gears which are designed to transmit and / or translate a movement of the drive shaft to the at least two output shafts, interact with each other and / or mesh with each other.

[0039] Preferably, the drilling device may comprise at least two core drills, wherein one of the at least two output shafts is connected to one of the at least two core drills.

[0040] In particular, it may be provided that at least three core drills with different diameters, preferably at least four core drills, are provided, wherein at least three of the at least four core drills have different diameters.

[0041] Preferably, it can be provided that - at least one can drill bit with a diameter of 127 mm, - at least one hole saw with a diameter of 60 mm and / or - at least one hole saw with a diameter of 27 mm is provided.

[0042] These features, whether cumulative or separate, allow the various required drill bits to be provided by the device as disclosed.

[0043] It may be provided that the at least two output shafts are arranged parallel to each other, each with an axis of rotation of the at least two output shafts.

[0044] Preferably, it is provided that at least one of the at least two output shafts: - is designed as an integral part of a drill bit, - has another drill chuck or is connected to the other drill chuck, - is designed as a drill chuck and / or - is designed as a tool holder or is connected to one.

[0045] It may be provided that - preferably exactly - four output shafts are provided.

[0046] Preferably, the four output shafts can be arranged in a quadrilateral, particularly preferably a kite-shaped quadrilateral, which is perpendicular to an axis of rotation of the four output shafts relative to each other.

[0047] Thus, the drill bits can already be aligned to each other by the drilling device, so that no drilling templates or the like are necessary.

[0048] This is particularly advantageous if the output shafts are arranged relative to each other in a kite-like quadrilateral, as this configuration corresponds to a widely used arrangement of fasteners and pipe connections.

[0049] It can be provided that the four output shafts are arranged transversely to an axis of rotation of the four output shafts in a quadrilateral, particularly preferably a kite-shaped quadrilateral, wherein the quadrilateral has one diagonal with a dimension of 180 mm and the other diagonal with a dimension of 135 mm.

[0050] Preferably, at least two of the four drive shafts can be designed to accommodate core drills with a diameter of 27 mm, with the axes of rotation of these two drive shafts being arranged at a distance of 180 mm from each other.

[0051] It may be provided that at least two of the four drive shafts are designed to accommodate core drills with a diameter of 60 mm and 127 mm, the axes of rotation of these two drive shafts being arranged at a distance of 135 mm from each other.

[0052] Preferably, it can be provided that an imaginary connecting line between the two drive shafts for receiving the can drills with a diameter of 27 mm lies at a right angle to an imaginary connecting line of the two drive shafts for receiving the can drills with a diameter of 60 mm and 127 mm in a view transverse - particularly preferably normal - to one of the drive shafts.

[0053] Holes with a size of 27 mm and a distance of 180 mm between them are used in WC pre-wall mounting openings to guide the mounting bolts for fastening the WC system through the pre-wall (especially the plasterboard wall), to which mounting bolts the WC system (for example the wall-hung WC system) can then be screwed.

[0054] Drill holes measuring 60 mm and 127 mm, spaced 135 mm apart, are used in WC wall-mounted bracket openings to allow a fresh water connection (usually the 60 mm hole) and a wastewater connection (usually the 127 mm hole) to pass through the wall (especially the plasterboard wall) in order to connect the WC unit (e.g., the ceramic) to a water supply and / or a wastewater drain.

[0055] Such a drilling device as disclosed, which is designed for drilling multiple holes, can be used for drilling multiple holes, in particular for WC wall mounting openings.

[0056] Further details and advantages of the present invention are explained in more detail below with reference to the description of the figures and the exemplary embodiments shown in the figures. This shows: Fig. 1 to 4 different perspective views of a first embodiment of a drilling device according to the invention and Fig. 5 a perspective view of the exemplary embodiment of the Fig. 1 to 4 with the case open.

[0057] The Fig. Figures 1 to 4 show a first embodiment of a hand-held drilling device 1 for setting multiple holes - specifically: WC wall mounting openings - in various perspective views.

[0058] The drilling device 1 of this embodiment has a housing 6, which forms the base body of the drilling device 1.

[0059] This housing 6 of the drilling device 1 is formed by the two housing parts 11, 12, which are connected to each other via the screw connection 21.

[0060] At a first housing wall 9 of the first housing part 11, the housing 6 is penetrated by the drive shaft 2, which drive shaft 2 is designed to be connected to a drill chuck of a drill machine.

[0061] By connecting the drive shaft 2 to the chuck of a drill, the drive movement, more precisely: the rotational movement of the drilling device 1, is generated.

[0062] This movement of the drive shaft 2 is transmitted via a gearbox 5 arranged in the housing 6 (this will be discussed later with reference to Fig. 5 (still discussed in detail) implemented on the four output shafts 3.

[0063] These output shafts 3 are each equipped with drill holders 18, via which the drills 4 are received.

[0064] The drills 4 shown in this embodiment also have core drills 15-17 which are designed to make holes of a defined size at a defined distance from each other in order to be able to mount a toilet system on a toilet wall bracket.

[0065] The four output shafts 3 pass through the second housing wall 10 of the second housing part 12 on a side facing away from the first housing wall 9.

[0066] Strictly speaking, the second housing wall 10 of this embodiment is one of the sides of the housing 6 opposite the first housing wall 9.

[0067] The housing 6 of this embodiment is essentially flat, wherein the housing 6 has a smaller size in the direction of an axis of rotation of the drive shaft 2 and / or the output shafts 3 than perpendicular to it.

[0068] For easier handling, carrying and / or guiding of the drilling device 1, the holding device 7, designed as a handle 8, is provided on the housing 6.

[0069] When the drilling device 1 is used to drill multiple holes, it can be held and guided on the one hand by the drive shaft 2 and the drill attached to it, and on the other hand by the handle 8.

[0070] The drive shafts 2 and the four output shafts 3 are guided and held in the housing 6, as shown by the Fig. 5 becomes apparent.

[0071] Fig. Figure 5 shows the drilling device 1 from the Fig. 1 to 4 with the housing part 11 lifted off, thereby exposing the interior of the housing 6.

[0072] As can be seen here, the housing parts 11, 12 are designed in a semi-shell shape to enclose and / or accommodate the gearbox 5.

[0073] In this embodiment, the gearbox 5 has four pulleys 14 which are rotationally connected to each other by the belt 13.

[0074] The belt 13 is tensioned in the gearbox 5 by the tensioning rollers 20.

[0075] These tension rollers 20 can, for example, be attached to the second housing part 12 via the tensioning screws 19 by means of the eccentric connection, which allows the belt 13 to be manually retensioned.

[0076] In this embodiment, the drive shaft 2 is formed integrally with one of the output shafts 3, which output shaft 3 carries the core drill 17. However, a separate embodiment of this drive shaft 2 and this output shaft 3 is certainly conceivable.

[0077] The rotational movement from this drive shaft 2 is transmitted to the other three output shafts 3 via the belt 13.

[0078] For repeated drilling of reproducibly positioned bores relative to each other, other arrangements of the output shafts 3 and / or the drills 4 can of course also be implemented.

[0079] Likewise, other types of gears 5 than those shown in the figures can be used to convert the rotational motion of the drive shaft 2 into the rotational motions of the output shafts 3, for example planetary gears. Reference symbol list: 1 drilling device 2 Drive shaft 3 Output shaft 4 drill bits 5 gearboxes 6 cases 7 Holding device 8 Grab handle 9 first housing wall 10 second housing wall 11 first housing part 12 second housing part 13 belts 14 Pulley 15 can drills 16 can drills 17 can drills 18 drill chuck 19 clamping screws 20 Tension roller 21 screw connection

Claims

[1] Hand-held drilling device (1) for drilling multiple holes, in particular WC wall mounting holes, comprising - a drive shaft (2) which drive shaft (2) can be connected to a drill chuck of a drilling drive unit, in particular a drilling machine, - at least two output shafts (3), each designed to receive and / or drive a drill (4), and - a transmission (5) wherein a rotational movement of the drive shaft (2) can be transmitted to the at least two output shafts (3) by means of the transmission (5). [2] Drilling device according to claim 1, wherein a housing (6), preferably of a substantially flat design, is provided in which housing (6) the gearbox (6) is arranged. [3] Drilling device according to claim 2, wherein the housing (6) has at least one holding device (7), preferably a handle (8). [4] Drilling device according to claim 2 or 3, wherein the drive shaft (2) passes through a first housing wall (9) and / or the at least two output shafts (3) pass through a second housing wall (10), preferably wherein the first housing wall (9) and the second housing wall (10) are arranged on opposite sides of the housing (6). [5] Drilling device according to at least one of the preceding claims, wherein the housing (6) has two housing parts (11, 12), in particular shell-shaped, preferably which two housing parts (11, 12) are designed to accommodate the gearbox (5). [6] Drilling device according to at least one of the preceding claims, wherein the transmission (5) comprises a belt (13), preferably a toothed belt, and a pulley (14). [7] Drilling device according to at least one of the preceding claims, wherein the drilling device comprises at least two core drills (15, 16, 17), wherein each of the at least two output shafts (3) is connected to each of the at least two core drills (15, 16, 17). [8] Drilling device according to at least one of the preceding claims, wherein the at least two output shafts (3) are arranged parallel to each other with an axis of rotation of the at least two output shafts (3). [9] Drilling device according to at least one of the preceding claims, wherein at least one of the at least two output shafts (3) - is designed as an integral part of a drill (4), - has another drill chuck or is connected to the other drill chuck - is designed as a drill holder (18) and / or - is designed as a tool holder or is connected to one. [10] Drilling device according to at least one of the preceding claims, wherein four output shafts (3) are provided. [11] Drilling device according to claim 10, wherein the four output shafts (3) are arranged in a view transverse to the axes of rotation of the four output shafts (3) to each other in a quadrilateral, preferably a kite quadrilateral.

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