Fastener for street ironwork, assembly, street ironwork and corresponding method

A technology for road maintenance and assembly, applied in water conservancy projects, artificial islands, underwater structures, etc., can solve problems such as high cost, difficulty, and even danger

Active Publication Date: 2012-08-08
SAINT GOBAIN PAM SA
View PDF6 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The disadvantage of this type of fastener is that it is manufactured specifically for the cover and is therefore expensive
[0005] In addition, with such complex fasteners, the installation of accessories on road maintenance equipment is often difficult or even dangerous, and requires skilled workers to operate

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Fastener for street ironwork, assembly, street ironwork and corresponding method
  • Fastener for street ironwork, assembly, street ironwork and corresponding method
  • Fastener for street ironwork, assembly, street ironwork and corresponding method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0049] figure 1 and 2 Shown is a manhole inspection shaft according to the invention, which is designated by the general reference numeral 10, for example a manhole inspection shaft for accessing an underground technical room equipped with radio communication equipment.

[0050] The manhole 10 has a frame 12 and two cover plates 14 .

[0051] Frame 12 is fixed on the ground and defines an entrance and exit 16 ( Figure 10 ), such as access to a basement with communication cables. In the present case, the access opening 16 is square.

[0052] The manhole 10 defines a manhole plane P-P which is substantially parallel to the ground when installed.

[0053] The manhole inspection shaft 10 defines an outer E and an inner I . The manhole 10 also defines a central axis X-X extending perpendicularly to the manhole plane P-P. Hereinafter, the expression "peripheral" refers to a direction radially away from the axis X-X, while "central" refers to a direction close to the axis X-...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The present fastener (36) for street ironwork includes a fastening or locking means (56). The fastener (36) includes a retaining foot (60) suitable for removably connecting the fastener (36) to a member of the street ironwork, via a receiving cavity (40) made in the member of the street ironwork by means of a shape-matching connection. The invention further relates to the use in attaching jacks to man hole covers.

Description

technical field [0001] The invention relates to a fastening fastener for road maintenance equipment, which has a fixing part or a locking part. Background technique [0002] Such fasteners are known for fastening accessories to closures of inspection technical rooms of underground cable networks, for example to closures of inspection openings of communication equipment, or to manholes or inspection openings for underground water supply networks Closed devices such as the closed device of the manhole inspection well of the roadway or sidewalk. [0003] These road maintenance devices generally have a frame permanently fixed in the ground, into which one or more cover plates are detachably inserted, the cover plates being arranged close to the ground. [0004] A disadvantage of this type of fastener is that it is produced exclusively for the cover and is therefore expensive. [0005] In addition, with such complex fasteners, the installation of the accessories on the road mai...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): E02D29/14
CPCE02D29/1427E02D29/1418E02D29/14E02D29/1454E02D29/1463Y10T29/49826
Inventor J-C·鲁瓦耶V·罗塔梅尔
Owner SAINT GOBAIN PAM SA
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap