WO2009024382A1

WO2009024382A1 - Pendulum laser device

Info

Publication number: WO2009024382A1
Application number: PCT/EP2008/058254
Authority: WO
Inventors: Rudolf Fuchs
Original assignee: Robert Bosch Gmbh
Priority date: 2007-08-21
Filing date: 2008-06-27
Publication date: 2009-02-26
Also published as: EP2181304A1; DE102007039340A1

Abstract

The invention relates to a system (10) comprising a pendulum laser device (2) and a pendulum laser device (2) comprising a housing (4), a pendulum arrangement (8) arranged in the housing (4), and a laser unit (1) applied to the pendulum arrangement (8). The laser unit (1) is freely self-orienting on the vertical, independently of the orientation of the housing, by means of the pendulum arrangement (8), and is designed to produce a laser beam (5) perpendicularly oriented to the vertical. According to the invention, a sweeping means (7) is used to fix the laser unit (1) in the freely self-oriented position; a control means (9) is used to determine whether the laser beam (5) perpendicularly oriented to the vertical extends in an imaging axis (11) of the laser unit (1); and a pivoting means is used to pivot the laser beam (5), preferably by means of a laser element (1) of the laser unit (1), in the freely self-oriented position.

Description

description

title

Pendulum laser device

State of the art

The invention relates to a pendulum laser device comprising: a housing; a pendulum arrangement arranged in the housing and a laser unit attached to the pendulum arrangement, wherein the laser unit is free and self-alignable by means of the pendulum arrangement independently of a housing orientation on the solder. The invention also relates to a system with the pendulum laser device.

In order to perform leveling, alignment and / or marking tasks in the craft sector, e.g. For some time now, laser products have been used which, depending on the application, produce laser markings to realize a reference independent of the orientation of floors, ceilings or walls. A distinction is made between so-called rotary lasers, in which a laser signal is fanned by rotation of the light source or a beam deflecting device in a plane to be adjusted and thus defines a reference surface and so-called line lasers, which allow the projection of the laser signal to a reference surface, that a predetermined direction becomes visible and can be kept.

For example, EP 0 785 412 A2 discloses a laser leveling device with an elongate housing and dragonflies which, as a laser spirit level, are connected to the level the housing to a desired level and emit a laser beam for guidance purposes.

From DE 295 11 266 a marking laser is known in which a laser unit is not movable, that is fixedly mounted in a housing, and wherein the housing forms an automatically perpendicular aligning pendulum.

From DE 297 16 316 Ul a pendulum laser for leveling and / or attaching markings on walls is known which has a housing with a suspension device, wherein the housing has an opening for a laser beam of a freely suspended from a pendulum axis laser beam generator.

An abovementioned, per se known pendulum laser device is used for leveling and / or marking using the laser beam generated by the laser unit on objects, for example, to display horizontal lines on surfaces, such a line is independent of a housing orientation of Pendellaservorrichtung perpendicular to the Lot. Such a line is independent of the orientation of the outer contact surface of the pendulum laser device, and the usable for leveling and / or marking line is generated by the laser unit, which is free selbstausrichtbar as such independently of a housing orientation on the solder. The pendulum mode described forms the basic function of a self-leveling or marking Pendellaservorrichtung mentioned above.

In practice, there are often cases in which a Pendellaservorrichtung of the type mentioned is used to display horizontal lines on vertical objects, however, moreover, it is also desirable to adjust such pendulum laser device in height. It is known to provide a laser device of the type mentioned above with a height adjustment for the device. It is known to arrange a Pendellaservorrichtung to do so on a tripod. However, such tools have proven difficult to create lines near, for example, the floor or near the ceiling, or to produce height displays for large room heights. That is to say, such types of lines, which have a comparatively large angle to a horizontal plane, can only be produced within the scope of an adjustment capability of the auxiliary means, for example an adjustment capability of a stand, since the aid is regularly limited in its angular adjustability. In addition, aids - such as tripods - basically space-taking and are not always carried.

It would be desirable to use a pendulum laser device as such to produce leveling and / or marking lines which have a comparatively large angle to a horizontal plane.

DISCLOSURE OF THE INVENTION Technical Problem

The object of the invention is to provide a pendulum laser device which is able to produce lines outside a horizontal plane in a comparatively simple manner, in particular lines which have a comparatively large angle to the horizontal. Technical solution

This object is achieved by a pendulum laser device of the type mentioned in the introduction. The laser unit of the type mentioned above is designed in particular for producing a laser beam oriented perpendicular to the solder. The pendulum laser device further comprises: a fixing means with which the laser unit can be fixed at the freely self-aligned position; a test device with which it can be determined whether the laser beam oriented perpendicular to the solder runs in an imaging axis of the laser unit; a pivoting means, with which the laser beam is pivotable in the freely self-aligned position. Preferably, for this purpose, the laser unit and / or a laser element of the laser unit can be pivoted.

The invention is based on the consideration that, in order to generate lines at a large angle to a horizontal surface and to avoid elaborate aids, it is much more advantageous to deflect a laser unit in the comminuted state, in particular to tilt it up or down, to create a line at a large angle to a horizontal surface. According to this consideration, the invention provides a Festlegungsmittel and a pivoting means in the aforementioned Pendellaser- device. The pendulum laser device first generates in the eingependel- th state a substantially perpendicular to the solder oriented laser beam regardless of a housing orientation by free self-alignment of the laser unit. Under the freely self-aligned position, in the present case, in particular, therefore, a stabilized position is to be understood. Thereafter, the fixing means is adapted to initially set the laser beam at the freely self-aligned position. The pivoting means is designed to pivot the laser beam in this freely self-aligned position, preferably upwards or downwards.

The invention has recognized that it also makes sense to provide a test device with which it is possible to determine whether the laser beam oriented perpendicular to the perpendicular extends in a preferred, in particular central, imaging axis of the laser unit. The laser unit or housing of the pendulum laser device should, according to the knowledge of the invention, be aligned prior to a pivoting action of the laser unit so that the preferably, in particular central, imaging axis substantially perpendicular to the projection surface, e.g. a wall, is.

Only when the preferred imaging axis is oriented perpendicular to the projection surface and the laser unit is fixed at the freely self-aligned position can projection errors be avoided when the laser beam, in particular the laser unit and / or a laser element, is pivoted. If the laser beam is tilted too far toward the preferred imaging axis or the imaging axis is tilted too much, the laser beam may run away from the imaging axis in a comparatively far off-axial position and pivot during pivoting, eg, by pivoting the laser unit and / or a laser element then projection errors occur, for example, a leveling cross could be sheared when panning and on the screen would result in an image with non-right angles. Such a situation is avoided according to the concept of the invention by providing the test means. For example, it can be determined by the test equipment whether the laser unit as such is located parallel to an object or whether the preferred imaging axis is perpendicular to the projection surface - namely on whether the oriented perpendicular to the solder laser beam in the imaging axis of the laser unit. If the test equipment does not detect this, a readjustment of the laser unit can take place, such that the laser beam runs in the imaging axis of the laser unit. Only then is it according to the concept of the invention provided that pivot means for pivoting the laser beam in the freely self-aligned position to produce the example near the floor or near the ceiling beam to operate outside a horizontal.

The result is error-free according to the concept of the invention.

Advantageous developments of the invention can be found in the dependent claims and specify in detail advantageous ways to realize the above-described concept within the scope of the task, as well as with regard to further advantages.

Preferably, the pivoting means is designed for pivoting in the vertical direction, in particular upwards and / or downwards. Such a pivoting means proves to be particularly suitable for generating height displays at high room heights or for creating lines near the floor or near the ceiling. In addition, a pivoting means can optionally also execute a lateral pivoting possibility. In the context of a particularly preferred development, the pivot means is formed by an arrangement of a pivot axis, preferably in a laser element. In a particularly preferred embodiment of the invention can be determined with the test means, whether the perpendicular to the solder oriented laser beam is in coincidence with a laser beam generated by the reflected laser beam. It has been found that this is a particularly reliable way of determining whether the laser beam oriented perpendicular to the perpendicular runs in an imaging axis of the laser unit-in particular an imaging arrangement of the pendulum laser device, which is not necessarily part of the laser unit.

The test device preferably has a diode and / or a field of view. A diode can be used to automatically determine whether a reflected laser beam is in line with a laser beam emitted by the laser unit. For this purpose, a corresponding optical imaging system may be provided in combination with the diode. Additionally or alternatively, it can be determined by a simple visual inspection of the user on a field of view, whether a laser beam emitted by the laser unit is in coincidence with a reflected laser beam. The elements of a test device explained here have proven to be particularly advantageous. However, other types of test equipment may be provided which are used in addition to or as an alternative to the named test equipment.

According to one embodiment of the invention, the pendulum assembly in the form of a suspension - for example, a thread - formed and / or a storage - for example, a universal joint bearing or a cutting edge storage - formed for the laser unit. The laser unit itself can basically be designed in a variety of forms, for example wise in the form of a line laser and / or a cross-line laser and / or a rotary laser.

The invention also leads to the solution of the problem to a system of the pendulum laser device according to the concept of the invention and a reflective object arrangement for reflection of the laser beam. According to the concept of the invention, it is particularly easy to determine with the test equipment via a reflected laser beam whether the laser beam oriented perpendicular to the solder runs in an imaging axis of the laser unit. According to this recognition, the system provides a reflective arrangement for attachment to an object and for reflection of the laser beam.

According to a preferred development, the object arrangement has a coating suitable for reflection of the laser beam, which may possibly be exchangeable, and is formed as required from a suitable material, preferably from a flexible material. In the case of a flexible material, the object arrangement can be accommodated particularly easily and space-saving.

Overall, the concept of the invention provides, in addition to the pendulum laser device, also a system with the pendulum laser device and a reflecting object arrangement for reflection of the laser beam. This makes it possible to produce virtually aberration-free and avoiding complex aids such as tripods or the like laser lines that are emitted at a large angle to the horizontal and a user is thus able to realize, for example, floor or ceiling markers. Brief description of the drawings

Embodiments of the invention are described below with reference to the drawing. This is not intended to represent the exemplary embodiments significantly, but the drawing, where appropriate for explanation, executed in a schematized and / or slightly distorted form. With regard to additions to the teachings directly recognizable from the drawing, reference is made to the relevant prior art. In detail, the drawing shows in:

1 shows a schematic representation of a particularly preferred embodiment of a pendulum laser device in the context of a system with a reflecting object arrangement, wherein the pendulum laser device is designed for generating leveling and / or marking lines at a large angle to the horizontal.

Fig. 2: a similar embodiment of FIG. 1 on a tripod.

Embodiments of the invention

In the figures, the same reference numerals are used for the same parts, parts the same function.

1 shows a system 10 with a pendulum laser device (not shown in detail) and an object arrangement 3 for reflecting a laser beam 5 in connection with an arrangement relative to a vertical object 20, for example a wall or the like. The pendulum laser device is used primarily for leveling and / or marking by means of horizontal lines 5 on a vertical observer. jekt 20, as shown in Fig. 1. For this purpose, in the present case, the pendulum laser device is shown schematically only by its laser unit 1, which is mounted in a housing in a manner not shown in a housing via a Pendelanord- and depending on a housing orientation on Lot and selbstausrichtbar and for generating the perpendicular to the solder oriented laser beam fifth is designed.

In addition, the pendulum laser device shown here is also suitable for generating lines at a large angle to the horizontal, this practically aberration-free and optional - if not already present from the object 20 - using an object arrangement 3, which is present for the reflection of the laser beam fifth has a reflective coating and is made of flexible material for easy packaging. The object assembly 3 can be attached to an object 20 temporarily attachable and detachable and reattachable with a suitable adhesive.

According to the concept of the invention, the laser unit 1 is fixed in the pendulum laser device by means of a fixing means 7 shown symbolically, and then it is determined with the presently formed as a diode test means 9, whether the perpendicular to the solder oriented laser beam 5 and reflected on the object assembly 3 Laser beam 5 'are in cover. This situation applies to the two laser beams 5, 5 'running in the imaging axis 11 of FIG. 1. A covering situation is registered by the diode 9, for example due to the increased incident intensity by the reflected laser beam 5 '. Additionally or alternatively Also, a corresponding field of view be provided as a test means 9, which allows the user to determine whether the reflected laser beam 5 'extends on the imaging axis 11.

FIG. 1 also illustrates two situations for which a test device 9 would indicate that a laser beam 13 or 15 oriented perpendicular to the solder is located outside the imaging axis 11, in this case above or below the imaging axis 11. Namely, these situations shown in FIG. 1 cause a reflected laser beam 13 ', 15' to be deflected farther from the reflecting object arrangement 3 and thus not come to rest on the presently diode-shaped test means 9, but rather not in an acceptable one Area 17 in coincidence with the emitted laser beam 13, 15 device. In such a case, the laser unit 1 of the pendulum laser device shown in FIG. 1 or the pendulum laser device would have to be aligned until a situation arises, as represented by the laser beams 5, 5 '. That is, the user has taking into account the test means 9 to align a laser unit 1 or the pendulum laser device so far that a radiated laser beam 13,15 in registration with a reflected laser beam 13 ', 15' and thus the laser unit 1 of the pendulum laser device parallel to the object 20th is aligned. Thereafter, a symbolically illustrated pivot means 19 is provided with which the laser unit 1 can be pivoted at the now aberration avoiding position up or down to produce lines that are at a large angle to the horizontal. The user thus receives in a particularly simple manner with the system 10 according to the concept of the invention, the possibility not only to produce horizontal lines, but also in a simple way and aberration free lines, for example in ceiling height or floor height. According to the device shown in FIG. 1, the user is enabled to first set the laser unit 1 at the freely self-aligned position, then to determine whether the laser beam 5 oriented perpendicular to the solder runs in an imaging axis 11 of the laser unit 1, namely, in that he states that the emitted laser beam 5 and the reflected laser beam 5 'on the diode 9 are congruent one above the other, and then to pivot the laser unit 1 in the freely self-aligned position to produce the far off-axis laser beam.

In particular, the user is thus enabled to determine in the determining step whether the laser beam 5 oriented perpendicular to the perpendicular is in coincidence with a reflected laser beam 5 'generated therefrom and / or if the laser beam 5 oriented perpendicular to the solder is substantially close to the axis an imaging axis 11 of an optionally provided separately from the laser unit 1 imaging arrangement runs.

If necessary, unless the object is a reflective object, the user applies a reflective marking 3 to the object 20.

FIG. 2 shows a similar laser unit 1, explained with reference to FIG. 1, in a housing 4 of a pendulum laser device 2. Positioning of pendulum laser device 2 on a stand 6 variably arranged. The laser unit 1 is suspended in the housing 4 on a presently symbolically illustrated pendulum assembly 8 expedient manner, such that the laser unit 1 by means of the pendulum assembly 8 regardless of an orientation of the housing 4, the solder is free and selbstausrichtbar and for generating a perpendicular to the perpendicular oriented laser beam 5 is designed.

A pivot means 19 is presently formed as a mechanism with which it is possible to align the optical axis of the laser unit 1 substantially perpendicular to the object 20, here a wall. In other words, so that the laser beam 5, which was previously oriented substantially perpendicular to the solder, now runs in an imaging axis 11 of the laser unit 1. To form the pivot means 19, a pivot axis 19 'for a laser element 1' of the laser unit 1 is provided in the present case. The pivot axis 19 'is arranged in the laser element 1'. The laser element 1 'and thus the laser beam 5 can be pivoted upwards or downwards about the pivoting axis 19'.

In summary, a pendulum laser device 2 comprises: a housing 4; a arranged in the housing 4 pendulum assembly 8 and mounted on the pendulum assembly 8 laser unit 1, wherein the laser unit 1 by means of the pendulum assembly 8 regardless of a housing orientation on the solder is free and selbstausrichtbar and designed to produce a perpendicular to the solder oriented laser beam 5. According to the concept of the invention, a fixing means 7 is provided with which the laser unit 1 can be fixed at the freely self-aligned position; and a test means 9 are provided, with which it can be determined whether the perpendicular to Lot oriented laser beam 5 extends in an imaging axis 11 of the laser unit 1; and a pivoting means 19 is provided, with which the laser beam 5, preferably a laser element 1 ', the laser unit 1, in the freely self-aligned position is pivotable.

Claims

claims

1. Pendellaservorrichtung, in particular for leveling and / or marking, comprising: a housing (4); a pendulum arrangement (8) arranged in the housing and a laser unit (1) attached to the pendulum arrangement (8), wherein the laser unit (1) is free and self-alignable by means of the pendulum arrangement (8) independently of a housing orientation, and to the Generation of a perpendicular to the solder oriented laser beam (5) is designed;

marked by

a fixing means (7) with which the laser unit (1) can be fixed at the freely self-aligned position;

a test means (9) with which it can be determined whether the laser beam (5) oriented perpendicular to the solder runs in an imaging axis (11) of the laser unit (1);

a pivoting means (19) with which the laser beam (5), preferably a laser element (1 '), of the laser unit (1) is pivotable in the freely self-aligned position.

2. pendulum laser device according to claim 1, characterized it can be determined with the test means whether the imaging axis (11) of the laser unit (1) is aligned perpendicular to the projection surface.

3. Pendellaservorrichtung according to claim 1 or 2, characterized in that the pivot means (19) for pivoting a laser element (1 ') of the laser unit (1) in the freely self-aligned position in the vertical direction, in particular up and / or down, is designed.

4. Pendellaservorrichtung according to one of claims 1 to 3, characterized in that it is detectable with the test means (9), if the perpendicular to the solder oriented laser beam (5) in coincidence with a laser beam (5) generated, reflected laser beam (5 ' ).

5. pendulum laser device according to one of claims 1 to 4, characterized in that it is detectable with the test means (9), if the perpendicular to the perpendicular oriented laser beam (5) substantially axially close to an imaging axis (11) of a mapping arrangement, in particular a from the laser unit (1) arranged separately imaging arrangement runs.

6. pendulum laser device according to one of claims 1 to 5, characterized in that the test means (9) has a diode and / or a field of view.

7. pendulum laser device according to one of claims 1 to 6, characterized in that the pendulum assembly in the form of a suspension and / or storage for the laser unit (1) is formed.

8. Pendellaservorrichtung according to one of claims 1 to 7, characterized in that the laser unit (1) comprises a line laser and / or a cross-line laser.

9. system (10) with a pendulum laser device (2) according to any one of claims 1 to 8 and a reflective object arrangement (3) for reflection of the laser beam (5).

10. System (10) according to claim 9, characterized in that the object arrangement (3) has a reflection for the laser beam (15) suitable coating.

11. System (10) according to claim 9 or 10, characterized in that the coating on the object arrangement (3) is exchangeable.

12. System (10) according to any one of claims 9 to 11, characterized in that the object arrangement (3) is formed with a flexible material.