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Damping device for discontinuous damping of rotational movement

A buffer device, a technology of rotary motion, applied in the field of buffer devices, can solve the problems of discontinuity and deviation from the buffer curve, etc., and achieve the effect of uniform buffer characteristics, low cost, and clear terminal position operation.

Active Publication Date: 2015-11-25
KABA GALLENSCHUTZ
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The previously known gears from the publication given above are constructed identically, but have the disadvantage when converting a continuous rotary motion into a discontinuous rotary motion that due to the identical construction of the gears one has to endure Significant deviation from the ideal buffer curve

Method used

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  • Damping device for discontinuous damping of rotational movement
  • Damping device for discontinuous damping of rotational movement
  • Damping device for discontinuous damping of rotational movement

Examples

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Embodiment Construction

[0060] figure 1 A damping device 10 according to the prior art is shown, which is especially suitable for damping the rotational movement of an inlet lock. The rotary movement of the inlet lock acts here on a transmission not shown in detail, wherein the rotary movement is transmitted to the drive gear 13 . The drive gear 13 is mounted on a drive shaft 15 connected to a discrete transmission comprising two identical, non-circular gears 11 and 12 . Due to the egg-shaped rolling curves of the gearwheels 11 and 12 , the continuous rotational movement of the inlet lock is converted into a discontinuous rotational movement on the output shaft 16 , which is connected to the damping elements 17 , 18 . Due to the same rolling curve, there is no need to manufacture several tools for the two gears 11, 12, so that the costs required to manufacture the gears 11, 12 remain low. However, the rolling curve achieved in this way is not ideal since it favors damping in the middle position and...

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Abstract

It is known how to damp the rotation of rotating doors and similar access barriers by means of a discontinuous gear train in that preferably noncircular gears first convert the continuous door rotation into a discontinuous rotation on the output side and said discontinuous rotation is damped by means of a damping element. Known arrangements use gears having identical rolling curves for this purpose, which leads to an overshoot of the rotation and to intermittent damping action. This should be improved by the invention. Said aim is achieved by a damping unit that uses two noncircular gears having different rolling curves, of which one is egg shaped and the other in contrast is shortened and at the same time widened relative to the first. This results in a modified damping profile that enables more uniform motion of the revolving door. This arrangement also enables a motor drive, which can be operated at a constant rotational speed because of the arising sine- or cosine-shaped inverse curve of the gear train and which enables a clean end-position motion of the driven access barrier.

Description

technical field [0001] The invention relates to a damping device for discontinuously damping the rotational movement of a drive gear rotatable about a drive axis, in particular a drive gear of an inlet lock, by means of a discontinuous transmission, said The transmission consists of two intermeshing, eccentrically mounted, non-circular gears and connects the drive gear to a damping element assigned to the output shaft. Background technique [0002] Such a damper is previously known from German publication DE 3638353 A1. Here the continuous rotation of the end of the toggle joint connected to the door closer is converted by means of a transmission consisting of two identical non-circular gears into a discontinuous rotation which is finally damped. [0003] In door closers of this type, but in particular in access locks used in dividers, access to the protected area is usually made dependent on a condition, for example on presentation of a valid entry ticket. Such an access ...

Claims

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Application Information

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IPC IPC(8): E05F5/02E05F3/10
CPCE05F5/02E05F3/106E05Y2201/618E05Y2201/716E05Y2900/132
Inventor H·艾希纳
Owner KABA GALLENSCHUTZ
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