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Impact resistance flexible rule

一种卷尺、尺片的技术，应用在尺片的卷尺领域，能够解决破损、卷尺无法使用等问题

Inactive Publication Date: 2007-04-11
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] FIG. 1 shows a known take-up reel 10 . 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 reels 10 (only one is shown in Figure 1). The tape measure is supported on a step (not shown) of each winding reel which defines the interface between the outer portion of the (winding) reel and the inner portion 16 of the reel. In FIG. 1 , this step is located opposite the side shown. The inner portion 16 terminates in a bearing surface 18 towards the center of the disc. In use, the bearing surface 18 rotates within the measuring tape (not shown) relative to an axis (not shown).

[0063] The inner part 16 is constituted by a thin-walled portion 20 , reinforcing spokes 22 and a reinforcing ring 24 . This construction is intended to form a strong and stiff inner portion while using little or no excess material for economical and weight reasons. The springs are ge...

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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 tape measures having a blade wound in a housing. Pulling on the free end of the blade causes the blade to protrude from the housing. The blade automatically retracts into the housing when released. Usually this retraction is caused by a spring in the housing, for example connected between the housing and a spool on which the blade is wound. [0003] For ease of manufacture, the housing is generally made of molded plastic material. This makes the housing lightweight and easy to handle. The molding operation also makes it possible to combine the shell with a specific functional shape in a single forming step. [0004] The blade of a tape measure is usually made of metal. In many applications, blades must be strong and not stretch. In addition, the ruler should be firm. In ...

Claims

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Application Information

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