Stand, in particular for surgical microscopes, having an energy storage element

a technology of energy storage element and stand, which is applied in the field of stand, can solve the problems of insufficient working range of conventional gas springs and present bracing effect, and achieve the effect of reducing the disadvantageous cosine effect of horizontal support and removing the disadvantageous effect of horizontal suppor

Inactive Publication Date: 2005-10-13
LEICA MICROSYSTEMS (SCHWEIZ) AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0009] It is thus the object of the invention to arrive at an improved system having energy-storage-element bracing, in particular gas-spring bracing, that is adjustable to different loads on the one hand so as thereby to eliminate the interchanging of different gas springs for different loads, and on the other hand in order to eliminate the disadvantageous cosine effect of the horizontal support under the load of the microscope, or reduce

Problems solved by technology

This is necessary because the working range of conventional gas springs has insufficient bandwidth.
Conventional gas-spring-braced stands have the disadvantage that because of the so-called “cosine function” of the load lever effect of the microscope along its vertical movement arc, the bracing effect that is present differs as a function of the angular position of the horizontal support with respect to the vertical support.
It has been found in prac

Method used

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  • Stand, in particular for surgical microscopes, having an energy storage element
  • Stand, in particular for surgical microscopes, having an energy storage element
  • Stand, in particular for surgical microscopes, having an energy storage element

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Embodiment Construction

[0025]FIG. 1 schematically depicts a stand arrangement 1 according to the existing art. Stand 1 comprises a vertical support 2 and a horizontal support 4 that is implemented as a parallelogram support having an upper horizontal support arm 4a and a lower horizontal support arm 4b. A gas spring is arranged, as a supporting energy storage element 7, at an articulation point 10 on upper horizontal support arm 4a of horizontal support 4 and at an articulation point 9 in a plate 6. Stand 1 has, as a means for positively influencing hysteresis properties, a displacement apparatus 18 that does not act linearly but instead permits, by way of an arc-shaped elongated guide hole 8, a radial displacement of articulation point 9.

[0026] Gas spring 7 is arranged with a cylinder 12 at distal articulation point 10 and with a piston rod 11 at articulation point 9.

[0027] This stand arrangement furthermore comprises joints 3a-d and a microscope carrier 5. Horizontal support 4 pivots about pivot axis ...

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Abstract

The invention concerns a stand arrangement (1) having a particularly arranged energy storage element (7) with specific parameters, in particular a low spring progression. The static friction is thereby reduced to a minimum.

Description

CROSS REFERENCE TO RELATED APPLICATIONS [0001] This application claims priority of the German patent application 10 2004 017 971.9 filed Apr. 12, 2004, which application is incorporated by reference herein. FIELD OF THE INVENTION [0002] The invention concerns a stand, in particular a stand for a surgical microscope, having one or more energy storage elements. “Energy storage elements” are understood in general to be elements that are suitable for absorbing an energy or force and delivering it again, or converting it into a different form of energy, in defined fashion. Relevant in this context are springs of mechanical, pneumatic, or hydraulic type or a combination of such types, or shock absorbers. Gas springs are primarily used in stand construction, in particular for surgical microscopes, but springs of the other aforementioned types are also implemented. BACKGROUND OF THE INVENTION [0003] In order to achieve a maximally space-saving stand configuration, stands having energy stora...

Claims

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Application Information

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IPC IPC(8): F16F9/02F16M11/04A61B19/00G02B21/24G02B7/00
CPCF16F9/0209F16M11/18F16M11/2064F16M2200/044G02B7/001A61B90/50A61B90/20A61B2090/5025A61B2090/506
Inventor METELSKI, ANDRZEJ
Owner LEICA MICROSYSTEMS (SCHWEIZ) AG
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