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Draft shields for balances

A windshield and balance technology, applied to the detailed information of weighing equipment, measuring devices, instruments, etc., can solve the problem of expensive groove production

Active Publication Date: 2018-03-30
METTLER TOLEDO INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This solution concerns that the grooves in the glass wall panels are expensive to produce and that the force required to insert the wall panels into the channel of the frame member will push the sides of the channel away and will therefore be different for the frame member of the draft shield. Contrary to expectations of a relatively slender design

Method used

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  • Draft shields for balances
  • Draft shields for balances
  • Draft shields for balances

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0033] figure 1A draft shield 1 according to the invention is shown having a front wall 11 , a rear wall 2 , side walls 9 and 10 , a top cover 8 and a bottom plate 13 . Fastening holes 24 in the bottom plate 13 are used to fasten the draft shield 1 to the top surface of a balance (not shown in the drawings). The bottom plate 13 has an access opening 25 for the carrier of the balance which will carry the weighing pan in the installed and operating condition of the draft shield 1 . The bottom plate 13 is connected at its rearward end to the frame 12 surrounding the rear wall 2 . Attached to the upper corners of this frame 12 are two rail members 3, 4 which extend forward in a horizontal plane. These guide rail members 3, 4 carry at their bottom faces guide rails 6, 7 which, together with guide rails 6', 7' on the top face of the bottom plate, serve to guide the side walls 9, 10, which The side walls are shown in their closed position and can be opened by pushing them to the b...

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PUM

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Abstract

A draft shield (1) for a balance has a rear wall (2), a front wall (11), two side walls (9, 10), a top cover 8, and rail members (3, 4) which extend from the upper corners of the rear wall (2) to the upper corners of the front wall (11) and carry guide tracks (5, 6, 7) in which the top cover (8) and the side walls (9, 10) are slidably seated. According to the invention, each rail member (3, 4) includes at its front end a spring element and a holder element which are integrally connected to the rail members (3, 4) and are made of one piece with the latter. The spring elements and the holder elements are arranged on the rail members (3, 4) in such a way that the front wall (11) can be inserted between the spring elements (16) and the holder elements (17), and as a result of said insertion the front wall (11) will be secured to the rail members (3, 4).

Description

technical field [0001] The present invention relates to a windshield for balances (also known as weighing instruments), in particular for those types of balances whose standard model versions (standard equipment) are not normally equipped with a windshield, commonly referred to as a windshield. The invention thus relates to a draft shield which can be purchased and installed by a customer as an accessory to a balance. Background technique [0002] The purpose of the draft shield inside a high-precision and correspondingly very sensitive balance is to prevent the weighing result from being adversely affected by ambient air movements. Such drafts, which can be caused, for example, by the air-conditioning system or by opening doors and windows, can exert steady or fluctuating forces on the weighing pan, which for the user of the balance manifests itself as errors, fluctuations and fluctuations in the displayed weighing results. irregular. The draft shield is usually in the fo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01G21/28
CPCG01G21/286
Inventor 王合桥
Owner METTLER TOLEDO INC