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Hose clamp with internal clamping surfaces devoid of gaps, steps or discontinuities

A technology of clamping parts and gaps, applied in the direction of hose connection devices, pipes/pipe joints/pipe fittings, fasteners, etc., can solve problems such as waste, and achieve the effect of saving clamping belt materials

Inactive Publication Date: 2008-05-21
HANS OETIKER MASCHEN & APPFAB
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In all the above-mentioned prior art hose clamps, these tongue portions are obtained by simply cutting off the transverse strip material on both sides, so these cut transverse strip portions are left unused, thus creating waste

Method used

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  • Hose clamp with internal clamping surfaces devoid of gaps, steps or discontinuities
  • Hose clamp with internal clamping surfaces devoid of gaps, steps or discontinuities
  • Hose clamp with internal clamping surfaces devoid of gaps, steps or discontinuities

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Embodiment Construction

[0031] Referring now to the drawings, in which like numerals are used to denote like parts in all views, it should be remembered that, as explained in U.S. Patent No. 6,240,603, virtually all of the tension exists in the outer entrainment portion while lamination The placed inner clamping strap parts are substantially free of any tension, but an inner clamping surface is provided in the overlapping region of the two clamping strap parts, including the region of the fastening means. Also as explained in my last mentioned US patent, by using the so-called "Oetiker" ear, the ear needs to be plasticized before it can properly function as a fastening device. Deform a predetermined initial amount. In other words, ignoring the compressibility of the hose material, the tolerance range d of the clamp max -d min The largest diameter size d maxIt should not exceed the total amount of shrinkage of the ear fastening means minus the amount of initial shrinkage of the plastically deformed...

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PUM

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Abstract

An open-type clamp in which the clamping band end portions are intended to form overlapping inner and outer band portions that are connected by a connection, in which the plastically deformable tightening device for tightening the clamping band about an object to be fastened requires an initial plastic deformation for proper operation and in which a guide arrangement is provided in the end area of the inner clamping band portion to guide the relative movement between overlapping band portions during plastic deformation of the ear, whereby the connection includes a lost-motion arrangement permitting initial plastic deformation of the tightening device substantially without change in radial dimension to avoid the installation of an undersized clamp. According to the method of this invention the amount of lost motion is thereby correlated to the amount of initial plastic deformation necessary to assure proper operation of the tightening device.

Description

technical field [0001] The present invention relates to a hose clamp, in particular an open type clamp without any gaps, steps or interruptions in the inner clamping surface, which improves the inner and outer overlapping bands by means of simple and effective means The guidance of the relative movement between the parts, for the length of the clamping band required for a clamping part of a given size, the device can save costs, the invention also relates to a method of manufacturing such a clamping band, The method consists only of the convenient fabrication process using materials already available. Background technique [0002] By using new, relatively hard, thinner plastic hose materials, it is important to provide, in particular, the absence of any steps, This is especially the case with gaps or interrupted inner clamping surfaces, especially at the ends of the inner overlapping clamping band sections. In addition, gaps are formed below these by fastening means, for e...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B65D63/00B65D63/02F16L47/00F16L33/02B65DF16LF16L33/025
CPCF16L33/035F16L33/025Y10T24/1457Y10T24/1478Y10T24/148
Inventor 小保罗·M·格拉格
Owner HANS OETIKER MASCHEN & APPFAB