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Impact resistance flexible rule

A technology of measuring tapes and rulers, which is applied in the field of tapes of rulers, and can solve problems such as unusable and damaged tapes

Inactive Publication Date: 2005-08-31
FISCO TOOLS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, one downside of metal rulers is their weight
This will render the tape unusable or severely damaged

Method used

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  • Impact resistance flexible rule
  • Impact resistance flexible rule
  • Impact resistance flexible rule

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0062] figure 1 A known winding reel 10 is shown. The disc has an outer portion 12 with an outer surface 14. In a typical winding device, the blades of a tape measure (not shown) are held between two opposing winding discs 10 ( figure 1 only one is shown in ). The tape measure is supported on a step (not shown) of each winding disc which defines the interface between the outer (winding) disc and the inner 16 of the disc. exist figure 1 , the stepped portion is located on the opposite side of the face shown. The inner portion 16 terminates in a bearing surface 18 towards the centre of the disc. In use, the bearing surface 18 rotates relative to an axis (not shown) within the tape measure (not shown).

[0063] The inner portion 16 is formed by the thin-walled portion 20 , the reinforcing spokes 22 and the reinforcing ring 24 . This construction is designed to create a strong and stiff interior while using little or no excess material for economical and weight reasons. Th...

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PUM

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Abstract

A tape measure is disclosed which has a spooled measuring blade mounted via a rotatable connection within a casing. The tape measure has impact-protection components. These components may be resilient means arranged between the spooled blade and the case, such as at the rotatable connection. Further impact-protection components are resilient pads which are moulded into impact-vulnerable locations on the outer surface of the case.

Description

technical field [0001] The present invention relates to tape measures, and more particularly to tape measures having a wound measuring blade. technical background [0002] Known tape measures include those having a blade wrapped in a housing. Pulling on the free end of the blade extends the blade from the housing. The blade automatically retracts into the housing when released. Typically this retraction is caused by a spring in the housing, eg a spring connected between the housing and a spool on which the blade is wound. [0003] For ease of manufacture, the housing is typically made of a molded plastic material. This makes the housing lighter and easier to handle. The moulding operation also makes it possible to incorporate specific functional shapes into the shell in a single forming step. [0004] The blade of a tape measure is usually made of metal. In many applications, the blade must be strong and not stretch. In addition, the ruler should be firm. In particul...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C45/16G01B3/10
CPCG01B3/1005B29C45/16G01B2003/1043G01B3/1043
Inventor B·H·李J·A·M·奈特
Owner FISCO TOOLS