WO2010026061A2

WO2010026061A2 - Marking and/or leveling device

Info

Publication number: WO2010026061A2
Application number: PCT/EP2009/060814
Authority: WO
Inventors: Wolfgang Adamczak
Original assignee: Robert Bosch Gmbh
Priority date: 2008-09-03
Filing date: 2009-08-21
Publication date: 2010-03-11
Also published as: DE102008041783A1; WO2010026061A3

Abstract

The invention relates to a marking and/or leveling device (1) comprising at least one light source (6, 7, 26) that is supported in an oscillating manner by means of a pendulum device (3) relative to a housing (2), preferably configured as a laser diode. The invention provides that elastically deformable attenuation means (21, 22, 25) are provided for impact energy absorption for the protection of the pendulum device (3) from damage.

Description

description

title

Marking and / or leveling device

State of the art

The invention relates to a marking and / or leveling device according to the preamble of claim 1.

Self-leveling laser devices with a gimbal-mounted laser unit are known, which emit a laser beam that is at least approximately point or line in cross section. With the help of the laser beam reference lines can be set to align, for example, shelving systems, cabinets, pictures, etc. vertically and / or horizontally at appropriate intervals. In order to ensure that the cardanic pendulum device can reach the (disengaged) idle state as quickly as possible after a deflection, the cardanic pendulum device is usually associated with a vibration damping system, which is embodied, for example, as an eddy current brake. A disadvantage of the known marking and / or leveling devices is the sensitivity to shock effects, which can lead to permanent damage to the sensitive device.

DISCLOSURE OF THE INVENTION Technical Problem

The invention has for its object to propose a marking and / or leveling device whose pendulum device is improved against impacts, etc. is protected.

Technical solution

This object is achieved with a marking and / or leveling device with the features of claim 1. Advantageous developments of the invention are specified in the subclaims. All combinations of at least two features disclosed in the description, the claims and / or the figures fall within the scope of the invention.

The invention is based on the idea, to protect the pendulum device from impact and shock, so to protect the pendulum device against improper mechanical stress, elastic, preferably rubber-elastic, deformable damping means for impact energy absorption provide. The damping means are preferably to be arranged such that they interact directly with the shuttle. Preferably, the damping means comprise a plurality of elastic damping elements, which are very particularly preferably arranged at different locations of the marking and / or leveling device within the housing.

In a further development of the invention is advantageously provided that the damping means are arranged in the region of the connection of the shuttle to the housing or to an intermediate part, in particular a frame. In other words, the pendulum device is preferably suspended by means of the damping means on the housing. In this way, the recommended sensitive suspension area of the pendulum device on the housing to be protected from shocks and shocks.

To make the mounting of the damping means as simple as possible, an embodiment is preferred in which the damping means are attachable to the shuttle. In other words, the damping means preferably have a recess for receiving a pendulum device section, preferably a suspension web made of metal or plastic.

An optimal damping effect can be achieved if the damping means are not over a large area in contact with the housing of the marking and / or leveling device, but instead a small area or point contact between the damping means and the housing is realized. In this case, the design of the contact surfaces (contact surfaces) theoretically have any conceivable geometric shape. However, an embodiment in which the contact surface is realized by at least one nub, preferably two, in particular in opposite directions pointing, nubs is particularly preferred.

In order to achieve a particularly soft damping behavior of the damping means, it is provided in a further development of the invention that the damping means in impact load in a, in particular groove-shaped, recess of the pendulum device are displaced into it. In this case, it is further preferred if the damping means protrude permanently into such recesses, in particular with knob-like depressions, but do not completely fill the recess under normal load. In addition or as an alternative to the realization of a shock energy absorption possibility by means of damping means in the area of the pendulum suspension on the housing, an embodiment is possible in which the elastically deformable damping means are arranged such that they are triggered by shock or impact or excessive movement Buffer pendulum deflection can. In other words, the damping means are preferably located in a region radially outside the free end of a pendulum of the pendulum device, most preferably in a region radially outside of an optionally be provided eddy current brake or an alternative device for vibration damping.

Particularly preferably, the damping means comprise a plurality of radially inwardly facing lamellae, which very preferably extend parallel to one another and particularly preferably in the housing upright direction. The elastic damping lamellae or the lamellar system formed by them absorbs the impact energy of the pendulum device as soon as the pendulum strikes against the lamellae. Particularly preferred is an embodiment in which the slats received in the housing are arranged such that they are modeled on the pendulum run, so as to allow an impact of the pendulum on the slats from each pendulum position out.

With regard to a cost optimization in the production of the marking and / or leveling device, it is preferred if the damping means in the region radially outside the free end of the pendulum of the shuttle are made in the same injection process with the housing. Al Alternatively, it is possible for the damping means, preferably designed as a lamellar system, preferably to be made of a rubber-elastic material with high damping properties, as at least one component separate from the housing and subsequently retrofitted inside the housing, for example by clamping, gluing, latching and / or or bolting, to assemble.

In order to avoid damage to the marking and / or leveling device, in particular the pendulum device, during transport, in which the marking and / or leveling device is inevitably subjected to impacts and shocks, it is advantageously provided in a further development of the invention that the pendulum device a transport lock is assigned, with a pendulum movement can be prevented. Very particularly preferably, the transport lock cooperates only with damping means, even more preferably with the above-described, in the region radially outside the free end of the pendulum of the pendulum device arrange th, in particular lamellar, elastic damping means together.

In order to realize a simple and effective transport safety device, it is provided according to a particularly preferred embodiment that the transport safety means for lateral adjustment, ie deflection of the pendulum pendulum device, with which the pendulum against, preferably in the region of the housing arranged radially outside the free end of the pendulum device, damping means can be pressed, wherein in the process of Verriegeins a rigid coupling of the shuttle is avoided. This remains the Pendulum the ability to dodge limited, so as to avoid damage by impact or shock.

In order to make the operation of the marking and / or leveling particularly comfortable, is provided in a further development of the invention advantageously that a common switching mechanism for switching on / off of the device and for simultaneous (even automatic) operating the transport lock is provided. In other words, with the common switch when switching on the marking and / or leveling device, the transport lock is automatically deactivated, whereas when switching off the device, the transport lock, preferably activated by a lever system operable by means of the switch, in particular pressed against arranged in the region of the housing damping means becomes.

In a further development of the invention is advantageously provided that the pendulum device comprises a universal joint (universal joint) via which a, preferably a laser light source supporting pendulum is suspended from the housing. Cardan joints are very delicate, precision-working mechanisms that are particularly well-protected with the dampers described above.

Brief description of the drawings

Further advantages, features and details of the invention will become apparent from the following description of preferred embodiments and from the drawings. These show in: 1 is a perspective view of a marking and / or leveling device with the housing open,

2 shows an alternative embodiment of a marking and / or leveling device,

3a a cut-free pendulum device,

3b shows a detail from the illustration according to FIG. 3a, which shows the suspension of the pendulum device with damping means on the housing, FIG.

4 is an illustration of the marking and / or leveling device with deflected pendulum and activated transport lock,

5 is an illustration of the housing of a marking and / or leveling device without pendulum device,

Fig. 6 is a view of the marking and / or leveling device from the outside.

Embodiments of the invention

In the figures, like elements and elements having the same function are denoted by the same reference numerals.

In Fig. 1, a marking and / or leveling device 1 is shown. This comprises a housing formed as a plastic injection molded shell housing 2, inside which a Cardan pendulum device 3 is arranged. The pendulum device 3 comprises an elongate pendulum 4, which is suspended at a universal joint 5 swinging in the housing 2. The pendulum 4 carries two light sources 6, 7 designed as laser light sources for emitting laser beams which are linear in cross-section, wherein the light sources 6, 7 can be operated alternatively or jointly in the exemplary embodiment shown. In a joint operation of the light sources 6, 7, intersecting lines are projected onto an object as reference lines. The light beams radiated by the light sources 6, 7 leave the housing 2 through a window 14 integrated into the latter. In the region of a free end 8 of the pendulum 4 of the pendulum device 3, vibration damping means 9 designed as an eddy current brake are arranged to move the deflected pendulum 4 as fast as possible In the rest state shown in Fig. 1 to transfer, ie to unwind.

To adjust the pendulum 4 are mass balance screws 10, 11 and for adjusting the light sources 6, 7, i. for fixing the light sources 6, 7 in these associated recesses in the pendulum 4, two adjusting screws 12, 13 are provided.

For supplying the light sources 6, 7 with electrical energy, a battery holder 15 with batteries 16 arranged therein is integrated into the housing 2.

To secure the pendulum device 3 during transport is a later to be explained transport lock

17 received in the housing 2, which is an actuatable

Lever 18 includes, with a pivot lever 19 to a Swivel axis 20 for blocking or releasing the pendulum 4 is pivotable.

The cardan pendulum device 3 is suspended on the housing 2 via rubber-elastic first damping means 21, 22. In this case, the damping means 21, 22 between a not provided with a reference numeral upper, the pendulum 4 bearing pendulum and the housing 2 are arranged. For this purpose, designed as Aufsteckelemente damping means 21, 22 are received in mutually parallel receiving grooves 23, 24 of the housing 2. The receiving grooves 23, 24 are contoured in cross-section U-shaped and open on sides facing each other. The arrangement of the damping means 21, 22 in a region between the housing 2, more precisely the receiving grooves 23, 24 and the shuttle 3 (more precisely: upper pendulum), a direct contact of the shuttle is avoided with the housing 2. In this case, the damping means 21, 22 ensure a minimal possibility of re-movement of the pendulum device 3 relative to the housing 2 for impact energy absorption.

As is further apparent from Fig. 1, the free end 8 of the pendulum 4 arranged on the housing 2 or integrally formed with the housing 2, lamellar shaped, second damping means 25 are assigned from an elastic material. These prevent direct abutment of the pendulum 4 to the rigid housing 2 in shock or impact stress. Furthermore, they cooperate with the transport lock 17, such that the pendulum 4 can be pressed against the second, lamellar damping means 25 with the aid of the levers 18, 19 in order to absorb this impact energy. In Fig. 2, an alternative embodiment of a marking and / or leveling device 1 is shown. This comprises, in addition to the two light sources 6, 7 for producing laser beams, which are linear in cross-section, a further light source 26 for generating a solder beam leaving the housing through windows 27, 28 arranged above and below.

Also in the embodiment according to FIG. 2, the pusher device 3, more precisely a suspension section 29 comprising an electrical circuit board, is suspended on the housing 2 via first damping means 21, 22.

Furthermore, the second end 4 of the pendulum 2 is assigned to the free end 8 of the pendulum.

2, the electrical or electronics of the marking and / or leveling device 1 can be seen in particular. This comprises a circuit board 30 with electronic components as well as a display unit 31, which is signal-conducting connected to the circuit board 30.

The electrical system comprises a switch 32 designed as a slide switch which is adjustable between two contact positions (on / off). The switch 32 is displaceably mounted in a guide 33 within the housing 2 and can be actuated from outside the housing (see FIG.

In Fig. 3a, the shuttle 3 of Fig. 1 is shown cut sections. Evident is the upper in the drawing plane, a printed circuit board weared suspension portion 29 which is connectable via the first damping means 21, 22 to the housing, not shown in Fig. 3a. to Clarification of the arrangement and operation of the first damping means 21, 22 is shown in the embodiment of FIG. 3a, only the left in the drawing plane first damping means 21, whereas the presentation of the other first damping means 22 in the plane of the right for reasons of clarification of constructive structure was omitted. It can be seen that the dampening means 21, 22 is associated with a respective Aufschiebeabschnitt 34, which is provided with two parallel, transverse to the direction of sliding grooves 35, 36. By sliding the first damping means 21, 22 onto the slide-on sections 34, the first damping means 21, 22 are fixed to the pendulum device 3. It is preferred if the first damping means 21, 22 are made in a undersize to realize a frictional, clamping connection between the first damping means 21, 22 and the shuttle 3, more precisely the Aufschiebeabschnitten 34.

As is apparent from Fig. 3a, the first damping means 21, 22 at its upper side in the drawing plane two spaced nubs 37, with which the first damping means 21, 22 on the inner periphery of the receiving grooves 23, 24 shown in FIG Can support housing 2.

As can be seen from the detailed illustration according to FIG. 3b, in addition to the nubs arranged on the upper side, further nubs are provided on the underside, which are diametrically opposed to the upper nubs, so that the first damping means 21, 22 make only a punctiform contact with the nipples Have housing. As is further apparent from Fig. 3b, not only outwardly facing nubs 37, but also inwardly facing, ie in the grooves 35, 36 projecting nubs 38 are provided to connect the first damping means 21, 22 form-fitting manner with the Aufschiebeabschnitt 34 , The grooves 35, 36 are dimensioned so that they are not completely filled by the nubs 38, so that damping material material can be displaced into the grooves 35, 36 in shock load.

In Fig. 4, the operation of the second, designed as a parallel slats, damping means 25 is shown in detail. These are located in a region radially outside the free end 8 of the pendulum 4 of the pendulum device 3 and are in the embodiment shown in multi-component injection molding in one piece with the housing 2, but not of rigid, but made of elastic material.

With the aid of the transport lock 17, the pendulum 4 in the blocked state shown is pressed against the second, second damping means 25, which extend in the housing upright direction and are arranged next to one another in the housing circumferential direction. At the same time, the switch 32 designed as a slide switch serves for activating and deactivating the marking and / or leveling device 1 simultaneously for actuating the transport lock 17 or the lever 18 and the pivoting lever 19. For this purpose, the lever 18 is provided with the switch designed as a slide switch 32 actively connected. To avoid unintentional release of the transport lock 17, the switch 32 is locked in its switching positions and must be moved with increased force from these, so that an unintentional Schaltvor- gear and thus an unintentional release or locking operation of the transport lock 17 is reliably avoided.

Fig. 5 shows the housing 2 of the marking and / or leveling device. Evident are the mutually facing sides open, upper receiving grooves 23, 24 for receiving the first damping means 21, 22. Furthermore, second directly on the housing 2 arranged damping means 25 are provided, which are different sizes or different radial extent inside extending slats of rubber-elastic material acts, against which the pendulum 4 is moved without risk of damage in shock. Further, the second damping means 25 serve to dampen shocks when the transport lock 17 is activated.

In Fig. 6, the marking and / or leveling device 1 is shown from the outside. Evident is formed as a slide switch switch 32 for simultaneous switching on / off of the device 1 and for releasing or activating the transport lock 17 for fixing the pendulum 4 of the shuttle 3.

Claims

claims

1. marking and / or leveling device comprising at least one by means of a pendulum device (3) relative to a housing (2) oscillatingly mounted, preferably designed as a laser diode, light source (6, 7, 26),

characterized,

in that elastically deformable damping means (21, 22, 25) for impact energy absorption are provided to protect the pendulum device (3) against damage.

2. Apparatus according to claim 1, characterized in that the pendulum device (3) via the damping means (21, 22) on the housing (2) and / or an intermediate part, in particular a frame suspended.

3. A device according to claim 2, characterized in that the damping means (21, 22) on the pendulum device (3) can be plugged and / or formed ausspritzbar.

4. Device according to one of claims 2 or 3, characterized in that the damping means (21, 22) at least one, preferably knob-shaped, support extension for substantially punctiform or small-surface supports on the housing (2).

5. Device according to one of the preceding claims, characterized in that the damping means (21, 22) are partly displaceable in impact load in a, in particular groove-shaped, recess of the shuttle (3).

6. Device according to one of the preceding claims, characterized in that the elastically deformable damping means (25) in the region radially outside a free end (8) of a pendulum (4) of the pendulum device (3) in and / or on the housing (2) are.

7. The device according to claim 6, characterized in that the damping means (25) elastically deformable, preferably arranged parallel to each other, preferably arranged according to the waveform of the shuttle (3), lamellae.

8. Device according to one of claims 6 or 7, characterized in that the housing (2) arranged damping means (25) integral with the housing (2), preferably by a production in Mehrkomponentenspritzgussverfah- ren, or as at least one of the housing (2) are formed on separate and / or fixed in this component.

9. Device according to one of the preceding claims, characterized in that a transport lock (17) is provided for blocking a pendulum movement of the shuttle (3).

10. The device according to claim 9, characterized in that the transport lock (17) means, in particular a lever system, for laterally adjusting the pendulum (4) of the pendulum device (3) against the on the housing (2) arranged, elastically deformable damping means (25). includes.

11. Device according to one of claims 9 or 10, characterized in that a common switch (32) for switching on / off the device (1) and for actuating the transport lock (17) is provided which preferably automatically activates the transport lock when Turning off the device (1), in particular mechanically causes.

12. Device according to one of the preceding claims, characterized in that the pendulum device (3) comprises a suspended by means of a Kar- dangelenk pendulum (4).