Bending device

Abstract

Bending device (9) comprising a movable pressure element (10) and two counter elements (12a; 12b) between which a groove iron (2; 2') can be accommodated, characterized by a motor (11) for moving the pressure element (10) against a groove iron arranged between the pressure element (10) and the counter elements (12a; 12b).

Description

[0001] The invention relates to a bending device according to the preamble of claim 1, a method for adapting a gutter iron to a roof, and a use of such a bending device.

[0002] Gutter brackets are commonly used to support rain gutters, typically attached to the eaves or a rafter of the roof using a mounting bracket. Since roof pitches vary and the rain gutter must remain horizontal, each bracket is bent individually by hand to achieve optimal positioning of the gutter, depending on the specific roof pitch. The bending pliers used for this purpose consist of a movable clamping element and two counter-elements to support the bracket, but they are rather imprecise and strenuous to use. Furthermore, adjusting gutter brackets to a roof is very time-consuming, as the brackets often need to be re-bent to achieve the correct angle.

[0003] The purpose of the invention is to simplify the adaptation of gutter irons to a roof.

[0004] This task is solved by a bending device which enables a motor to move the movable pressure element against a groove iron arranged between the pressure element and the counter elements.

[0005] The motor, which can preferably be an electric motor or a hydraulic drive, allows gutter irons to be bent with great force and accuracy without fatigue.

[0006] In an advantageous embodiment, the bending device can include a control device for the motor to enable a defined movement of the pressure element. This ensures that a specific position of the pressure element can be approached with repeatable accuracy, for example, to bend several gutter bars at the same angle. Particularly advantageously, the control device can include a control unit that detects the position of the pressure element. By measuring the actual position of the pressure element, the motor can be controlled in such a way that any deviation from a target value is corrected. This results in particularly precise positioning of the pressure element, which in turn allows the bending angle of the gutter bar to be set with exceptional accuracy.

[0007] In a further advantageous embodiment, the bending device can have an inclination sensor that detects the angle of inclination of the bending device relative to the vertical. For this purpose, a spirit level can be used mechanically, or, for example, a gravity sensor electronically, which measures the relative orientation to the gravity vector. Since the position and orientation of the inclination sensor relative to the bending device are known, the bending device can, for example, be placed on the roof to determine the roof pitch. This greatly simplifies the determination of the roof pitch. With the knowledge of the pitch angle, a gutter iron can, for example, be bent to the appropriate angle using markings attached to the bending device that indicate the respective bending angle.

[0008] Furthermore, the motor's control device can be advantageously designed to move the pressure element depending on an inclination angle determined by the tilt sensor. This allows for the automatic bending of a gutter iron, since the inclination angle determined by the tilt sensor can be used directly to move the pressure element into the position appropriate for achieving the necessary bending angle.

[0009] The motor's control device can include a data storage unit that allows one or more tilt angles and / or one or more specific positions of the pressure element to be saved. This allows further gutter brackets to be bent at the same angle after a single measurement of the roof's tilt angle or after the pressure element has reached the appropriate position. The aforementioned data storage unit, or another data storage unit of the control device, can be configured to contain information on different gutter brackets, so that the pressure element is moved depending on the respective bracket. This information can include, for example, the designation, and possibly other details.Other parameters such as the temperature and / or the bending behavior of the respective gutter iron are included, so that even gutter irons with different elastic deformation behavior can be bent independently at the required angle by adjusting the respective end position of the pressure element.

[0010] The motor can include a pushrod, at the free end of which the pressure element is preferably detachably arranged. The pushrod can preferably be a rack, a threaded rod, or a piston rod.

[0011] The pressure element can advantageously include a receptacle for the gutter iron, allowing it to grip the iron from two sides and thus enabling bending in two directions. For this purpose, the pressure element can, for example, incorporate a groove into which the gutter iron is inserted. This also allows for correction of the bending angle by applying pressure to the gutter iron in the opposite direction. Furthermore, the degree of elastic recovery can be determined. For this, the motor can, for example, move the pressure element in the opposite direction after bending until, following elastic recovery, the pressure element comes into contact with the opposite side of the gutter iron. This is recognizable, for example, by an increased force and thus increased drive power at the motor. This allows the actual bending angle achieved to be determined and verified.

[0012] In a further advantageous embodiment, the bending device can comprise two mirror-image pressure elements, in particular each with an associated motor, which independently enable the bending of the gutter iron in two opposite directions.

[0013] Furthermore, a method for adapting a gutter iron to a roof before its installation is described, which is characterized in that a fastening section of the gutter iron is bent over with the bending device described above.

[0014] Advantageously, the roof's pitch can first be determined, and the fastening section of the gutter iron can then be bent accordingly using the bending device. The roof's pitch is preferably determined by an inclination sensor on the bending device.

[0015] Furthermore, the use of the previously described bending device for bending gutter irons is also described.

[0016] Further features and advantages of the invention will become apparent from the following description of a preferred embodiment with reference to the drawings. These show: Fig. 1 a cross-sectional view through a roof in the area of ​​the eaves with a gutter iron; Fig. 2 a schematic representation of a bending device with a groove iron in a first position; Fig. 3 a schematic representation of the bending device and the gutter iron of Fig. 2 in a second position and Fig. 4 a schematic representation of the bending device and the gutter iron of Fig. 2 in a third position.

[0017] In Fig. Figure 1 shows a cross-sectional view through a roof 1 in the eaves area with a gutter bracket 2. The gutter bracket 2 includes a straight mounting section 3, which is used to attach the gutter bracket 2 to the eaves board 4 as an example. A curved retaining section 5 of the gutter bracket 2, designed to accommodate a rain gutter, is attached to the mounting section 3. To reliably collect and drain rainwater, the retaining section 5 should allow for a substantially horizontal mounting of the rain gutter, regardless of the roof pitch. Depending on the roof pitch, the retaining section 5 must be bent relative to the mounting section 3 to achieve this. Fig. 1 The roof slope is schematically indicated as a slanted line 6 and the angle between 7 and the vertical 8 corresponds to the bending angle by which (if necessary after correction) the undeformed gutter iron shown in the following figures is to be bent.

[0018] In Fig. Figure 2 is a schematic representation of a bending device 9 with a grooved iron 2' in an undeformed, first position. The bending device 9 comprises a movable pressure element 10, which is movable by a motor 11, and two counter elements 12a, 12b in the form of projecting bolts, which are connected to the housing of the motor 11 via a support 13 in the form of a plate. The motor 11 is an electric motor, which is designed to drive a push rod 14, for example in the form of a rack and pinion, and is supplied with electrical energy via a battery 15.

[0019] For particularly precise and rapid bending of the gutter iron 2', the bending device 9 is equipped with an inclination sensor 16, which determines the inclination angle of the bending device 9 relative to the vertical 8, i.e., the gravity vector. If the bending device 9 is laid flat on the roof 1 or the eaves board 4, to which the gutter iron 2' is to be attached, for example by aligning an edge of the support 13 parallel to the lower edge of the eaves board 4, the intermediate angle 7 can be determined mechanically, for example by means of a spirit level, or electronically, for example by means of a gravity sensor, via the inclination sensor 16. This intermediate angle 7 can be used directly as the bending angle or, after correction (i.e., addition or subtraction of an angle value, for example, to achieve a desired slope of the gutter), to bend the gutter iron 2'.

[0020] As in Fig. As shown in Figure 2, the gutter iron 2' is positioned between the counter elements 12a, 12b on one side and the pressure element 10 on the other side for bending, wherein the counter elements 12a, 12b are arranged laterally offset from the direction of movement of the pressure element 10.

[0021] How Fig. As can be seen from Figure 3, pressing the pressure element 10 bends the channel iron 2' between the fastening section 3 and the holding section 5, with the bending angle increasing the further the pressure element 10 is moved by the motor 11. To enable repeatable adjustment of a specific bending angle, the bending device 9 includes a control device with a control unit for the motor 11, which detects the position of the pressure element 10. The control device can thus compare the actual value of the position of the pressure element 10 with the target value and correct it if necessary, so that the desired position of the pressure element 10 can be reproduced with repeatable accuracy. Depending on the determined intermediate angle 7, the pressure element 10 can be moved by the motor 11 to such an extent that the bending angle corresponds to the intermediate angle 7 or an angle derived therefrom.This makes it particularly easy to produce a gutter iron 2' that is perfectly adapted to the roof pitch.

[0022] To reproducibly bend multiple gutter bars to the same bending angle, the control device includes a data memory that allows the measured angle of inclination and / or a specific position of the pressure element to be saved. For example, an advantageous position of the pressure element determined through testing can be stored in the data memory of the bending device 9 and later retrieved to set the same position of the pressure element 10 again and thus bend another gutter bar in the same way. The bending device 9 can have input elements such as buttons and / or output elements such as a graphic display, in particular LED displays.

[0023] To enable the bending device 9 to reliably and reproducibly bend gutter irons of various sizes and thicknesses, its data storage also includes information on different gutter irons. This allows the pressure element 10 to be moved further or less far depending on the selected gutter iron and, if applicable, the temperature. This allows for adaptation to the different deformation properties of the various gutter irons, as the elastic springback, which is always present to a certain extent, leads to a different bending angle than that achieved by the final position of the pressure element 10. These effects can be permanently stored via a corresponding data storage device.

[0024] As in Fig.As shown in Figure 4, an excessively bent gutter iron 2' can also be bent back using the bending device 9. For this purpose, the bent gutter iron 2' is inserted into the bending device 9 upside down, so that the pressure element 10 can press against the gutter iron 2' in the opposite direction. The control device with the regulating unit can control the motor in such a way that the pressure element 10 is only moved a specific distance, which corresponds to the desired change in the bending angle.

[0025] In all embodiments, the contact of the pressure element 9 with the channel iron 2' can be determined, for example by changing the load of the motor 11, but alternatively also electronically, for example by measuring the electrical resistance between an insulated pressure element 10 and, for example, the counter elements 12a, 12b. This allows the position and also the current bending angle of the channel iron 2' to be determined, which in turn allows the desired bending angle to be set even more precisely. Reference symbol list: 1 roof 2.2' gutter iron 3 Mounting section 4 eaves board 5 Stop section 6 Diagonal line 7 Intermediate angles 8 Vertical 9 Bending device 10 Pressure element 11 Engine 12a, 12b Counterparts 13 carriers 14 Push rod 15 Accumulator 16 tilt sensor

Claims

[1] Bending device (9) comprising a movable pressure element (10) and two counter elements (12a; 12b) between which a groove iron (2; 2') can be accommodated, characterized by a motor (11) for moving the pressure element (10) against a groove iron arranged between the pressure element (10) and the counter elements (12a; 12b). [2] Bending device (9) according to claim 1, characterized by a control device for the motor (11) for the defined procedure of the pressure element (10). [3] Bending device (9) according to claim 2, characterized by , that the control device includes a control unit which detects the position of the pressure element (10). [4] Bending device (9) according to any one of the preceding claims, characterized by a tilt sensor (16) which detects the tilt angle of the bending device (9) relative to the vertical (8). [5] Bending device (9) according to claim 4, characterized by, that the control device is designed to move the pressure element (10) depending on an inclination angle (7) determined by the tilt sensor (16). [6] Bending device (9) according to any one of the preceding claims, characterized by , that the control device includes a data storage device which enables the storage of the inclination angle (7) and / or a specific position of the pressure element (10) in order to be able to bend several gutter irons (2; 2') at the same angle. [7] Bending device (9) according to any one of the preceding claims, characterized by , that the control device includes a data storage device which contains information on various gutter irons, so that the pressure element (10) is moved depending on the gutter iron. [8] Bending device (9) according to any one of the preceding claims, characterized by , that the motor (11) comprises a push rod (14) at the free end of which the pressure element (10) is arranged. [9] Bending device according to one of the preceding claims, characterized by that the pressure element includes a receptacle for the gutter iron in order to grip the gutter iron from two sides and allow bending in two directions. [10] Bending device according to one of the preceding claims, characterized by two mirror-image pressure elements which allow a gutter iron to be bent in two opposite directions.

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