WO2008077658A1

WO2008077658A1 - Tripod

Info

Publication number: WO2008077658A1
Application number: PCT/EP2007/061342
Authority: WO
Inventors: Wolfgang Adamczak
Original assignee: Robert Bosch Gmbh
Priority date: 2006-12-22
Filing date: 2007-10-23
Publication date: 2008-07-03
Also published as: DE102006061232A1; EP2126452A1

Abstract

The invention relates to a tripod (1) with a tripod head (2) and three tripod legs (3, 4, 5). According to the invention, for the purpose of fixing a device, in particular a measuring device, a first holding rod (6) extending vertically downward is provided on the tripod head (2) in a region between the tripod head (2) and the ground.

Description

description

Title tripod

State of the art

The invention relates to a stand, in particular for measuring devices such as laser measuring devices according to the preamble of claim 1.

From DE 20 2005 015 263 Ul a tripod for a laser measuring device is known, in which three tripod legs designed as telescopic rods on a tripod head are releasably attached to tilting joints. The measuring device can be attached to the top of the tripod head. One advantage of the known tripod is that at least two of the tripod legs can be combined to form a length-adjustable clamping rod and thus the known tripod can be used universally. The disadvantage, however, that measurement tasks near the ground can be difficult to do because this tripod legs must be spread very far from the tripod head, whereby the tripod occupies a large area, which is not available for all applications.

DISCLOSURE OF THE INVENTION Technical Problem

The invention is therefore based on the object of specifying a tripod which can be optimally used for measuring tasks near the ground with a small space requirement. Technical solution

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

The invention is based on the idea, in addition to the tripod legs to provide a support rod for, in particular clamping down a meter, wherein the support rod is arranged such that it points perpendicularly from the tripod head in the direction of the ground.

Theoretically, it would be possible to define a measuring device for ground-level measuring tasks on one of the tripod legs. However, a horizontal alignment of the measuring device designed as difficult because the tripod legs are inclined to a vertical usually. The provision of a vertical handrail elegantly avoids this problem and provides a means of securing the gauge to the tripod in an area between the tripod head and the floor without the need to maximally spread the tripod legs.

In a further development of the invention, the support rod is detachably attached to the tripod head so that it only has to be mounted if measuring tasks are to be performed in an area between the tripod head and the ground. It is also conceivable that the support rod is designed to be longer than the clear distance between the tripod head and the ground. In such a case, the tripod is suitable for measuring tasks in Manholes, etc., where the tripod legs are placed at the side of the recess on the floor.

It is particularly advantageous if the tripod legs are fixed coaxially to the support rod on the tripod head - so the stand rod extends centrally in the vertical direction between the tripod legs. As a result, an exactly vertical alignment of the stand rod, in particular by changing the length of at least one tripod leg or by placing underlay elements under at least one tripod leg is particularly easy.

An advantage is an embodiment in which the first support rod extends not only in the direction of the ground, in particular between the tripod legs, but in which the first support rod is additionally arranged projecting the tripod head up to this, a measuring device in an area above the tripod head to be able to determine. Preferably, the support rod in a through opening or clamping device of the tripod head in different, in particular arbitrary positions can be locked in order to vary their extent down or up.

In addition or as an alternative to an upwardly extending first support rod, a second support rod may be provided which extends vertically upwards exclusively from the support head. Preferably, the second support rod is arranged in alignment with the first support rod and can also be releasably fixed to the tripod head, in particular pinned.

In a further development of the invention is advantageously provided that individual components of the tripod to a between ceiling and bottom clampable clamping bar for fixing a measuring device can be assembled. It is conceivable to combine at least two tripod legs or at least two handrails with each other. Furthermore, it is possible to combine at least one tripod leg with at least one support rod. The tripod legs and / or the support rods can be fixed to each other for example by means of a particular resilient bayonet connection. Other plug and / or Verdrehklemmverbindungen are alternatively used.

Of particular advantage is an embodiment in which the tripod legs are releasably fastened to the tripod head, in particular in these plugged. Preferably, in this case the same attachment mechanism is used with which the tripod legs are fixed to each other. Preferably, the tripod legs on the tripod head are circumferentially offset by 120 ° to each other to ensure a stable state of the tripod. The fact that all components are releasably secured to the tripod head, the storage volume is minimized.

In order to enable the most comfortable application of the clamping rod, it is advantageous if at least one component of the tripod, which is also part of the clamping rod, in particular a tripod leg or a support rod, or even more tripod legs or more support rods as variable length element, in particular as a telescopic rod is formed or are. If the first or second support rod is designed as a variable-length element, this additionally has the advantage that the extent of the corresponding support rod can be varied downwards or upwards (as viewed from the head of the tripod), so that measurement tasks too in extreme height or directly on the ground or in a depression (eg shaft) can be performed.

Of particular advantage is an embodiment in which the tripod legs can be arranged without joints on the tripod head. Although this may seem inconvenient at first glance, it provides a particularly simple and easy to fold tripod whose parts are preferably interchangeable. The orientation of the tripod head can be done, for example, by placing objects in the area of the free tripod leg ends. For easier alignment, two dragonflies are preferably arranged on the tripod head.

In order to allow a firm clamping of the clamping rod between the floor and ceiling, at least one resilient element is provided in an embodiment of the invention. It is conceivable to form one of the components of the stand as a resilient element, or to provide a separate resilient element, which preferably serves as a support element on the ceiling or on the floor. Preferably, the tripod head serves as a support of the stand rod on the floor or on the ceiling.

Another independent inventive concept comprises a tripod head and three, in particular releasably fixed to the tripod head tripod legs, the tripod legs are neither hingedly connected to the tripod head, nor are formed variable in length. As a result, a particularly simple and quickly collapsible or assemblable tripod is obtained. Preferably, in this tripod individual components to a clamping rod can be assembled. This tripod does not necessarily have a down facing Have holding rod. Preferably, however, at least one upwardly-pointing support rod is provided, which is preferably designed as a variable-length element, in particular as a telescopic rod. Optionally, individual features disclosed in connection with the actual invention of the application can also be combined with the independent idea of the invention (tripod head + three rigid, non-extendable tripod legs).

Brief description of the drawings

Further advantage, features and details of the invention will become apparent from the following description of preferred embodiments and from the drawings. These show in:

Fig. 1: a tripod with three rigid tripod legs and two handrails and

Fig. 2: a composite of components of the stand according to FIG. 1 clamping rod.

Embodiments of the invention

In the figures, the same components and components with the same function with the same reference numerals.

In Fig. 1, a tripod 1 for particular clamping fixing a measuring device, not shown, in particular a self-leveling laser measuring device is shown. The stand 1 comprises a conically designed in this embodiment, the tripod head 2 at each 120 ° mutually offset three tripod legs 3, 4, 5 releasably fixed by plugging in hidden plug receptacles on the tripod head 2. In this embodiment, the support rods 3, 4, 5 are designed as rigid, non-extendable rods, as in self-leveling measuring device exact alignment of the stand 1 is not absolutely necessary. Optionally, articles such as washers may be provided under the free ends of the tripod legs 3, 4, 5.

The illustrated tripod 1 has a first support rod 6 which is releasably fixed by insertion into a plug-in receptacle 7 on the tripod head 2 and perpendicular to the ground. This first support rod 6 serves to define a measuring device in an area between the tripod head 2 and the ground.

It is also an embodiment of the stand 1 is conceivable in which this downwardly facing first support rod, which brings significant benefits, is omitted or no possibility of attachment to the tripod head 2 is provided for this first support rod 6.

On the opposite side of the first support rod 6, a second support rod 8 is provided, which is inserted into a central receiving opening 9 of the tripod head 2 and thus releasably fixed to the tripod head 2. The second support rod 8 is aligned with the first support rod 6. The second support rod 8 is formed as a telescopic rod with an outer tube 10 and a freely displaceable in the outer tube 10 inner tube 11. For fixing the outer tube and inner tube 11, a clamping sleeve 12 is provided. By moving the outer tube 10 on the in the centric Opening 9 of the tripod head 2 received inner tube 11, the effective length of the second support rod 8 can be changed so that measurement tasks can be done at high altitude, especially if the meter is set in the region of the free end of the outer tube 10.

In Fig. 2, a clamping rod 13 is shown, which is composed of the second support rod 8 and the tripod legs 3 and 4. The second support rod 8 and the tripod legs 3, 4 are fastened to each other via not shown, axially resilient bayonet locks. A dashed area 14 symbolizes the possibility of additionally being able to receive the tripod leg 5 and the first holding bar 6 in the clamping bar 13. By means of trained as a telescopic pole second support rod 8, the effective length of the clamping rod 13 can be changed, thus bridging a distance between the floor and ceiling and thus a clamping between the floor and ceiling can be realized. For supporting on the ground of the tripod head 2. On the opposite side of the tripod head 2 of the clamping rod 13, a support member 15 is arranged with a spring mechanism, not shown (compression spring). After relieving the pressure spring of the support member 15, the clamping rod 13 is biased so that a measuring device can be set on the clamping rod 13 in the required working height.

Claims

claims

1. Tripod with a tripod head and with three tripod legs (3, 4 5), characterized in that on the tripod head (2) has a vertically downwardly extending first support rod (6) for fixing a device, in particular a measuring device, in one area between the tripod head (2) and the bottom is provided.

2. Stand according to claim 1, characterized in that the first support rod (6) is releasably attached to the tripod head (2).

3. Stand according to one of claims 1 or 2, characterized in that the first support rod (6) is arranged centrally between the tripod legs (3, 4, 5).

4. Stand according to one of the preceding claims, characterized in that the first support rod (6) for fixing a device, in particular a measuring device in an area above the tripod head (2), the tripod head (2) upstanding, preferably by passing, arranged is.

5. Stand according to one of the preceding claims, characterized in that on the tripod head (2) a vertically upwardly extending second support rod (8) for fixing a a device, in particular a measuring device, in an area above the tripod head (2) is provided.

6. Stand according to one of the preceding claims, characterized in that the tripod legs (3, 4, 5) and / or the support rods (6, 8) can be assembled to a variable length between two spaced-apart boundaries holding rod (6, 8).

7. Stand according to one of the preceding claims, characterized in that the tripod legs (3, 4, 5) releasably fastened to the tripod head (2), in particular can be inserted.

8. Stand according to one of the preceding claims, characterized in that the first and / or the second support rod (6, 8) and / or at least one of the tripod legs (3, 4, 5) is designed as a variable-length element, in particular as a telescopic rod.

9. Stand according to one of the preceding claims, characterized in that the tripod legs (3, 4, 5) articulated to the tripod head (2) are arrangeable.

10. Stand according to one of the preceding claims, characterized in that one of the tripod legs (3, 4, 5) and / or one of the support rods (6, 8) comprises a spring element, or that an additional spring element is provided for generating a clamping force.