AU726576B3 - Netting structure - Google Patents

Description

S F Ref:475923

AUSTRALIA

Patents Act 1990 COMPLETE

SPECIFICATION

FOR A PETTY PATENT

ORIGINAL

Name and Address of Applicant(s): Actual Inventor(s): Address for Service: Invention Title: Chin-chien Yang, of 9th Fl. Cathay Nan King Business Building, No. 91 Nan-King East Rd., Sec 3, Taipei, TAIWAN Chin-chien Yang Spruson Ferguson, Patent Attorneys Level 35, St Martins Tower, 31 Market Street Sydney, New South Wales, 2000, Australia Netting Structure The following statement is a full description of this invention, including the best method of performing it known to me/us:- [R:\LIBT]02138.doc:KEH TITLE: NETTING

STRUCTURE

BACKGROUND OF THE INVENTION 1. Field of the invention The present invention is related to a netting structure, and especially to a netting structure which is structurally simple, easy for assembling and disassembling, and surely prevents mosquitoes from getting through to get indoors.

2. Description of the Prior Art Mosquitoes are very easy to propagate indoors or outdoors in normal life tomake trouble for most of people. Generally, to prevent mosquitoes from getting indoors, window screens and door screens are added on windows and doors to prevent biting by mosquitoes.

Conventional window screens and door screens are made mainly by providing screens in frames which suit door or window openings and are made of aluminum. And pressing strips are pressed at the edges of the screens to tightly connect the screens to the frames. When the window screens and door screens are mounted on the doors or windows for use, they can have the effect of preventing mosquitoes from getting indoors in addition to providing indoor ventilation.

Although the widely used window screens and door screens have the effect of preventing mosquitoes from getting indoors and providing indoor ventilation, they include the following problems: 1. The window screens and door screens are made by providing screens in frames made of aluminum; and then pressing strips are pressed at the edges of the screens to tightly connect the screens to the frames.

The window screens and door screens of such a structure not only cost high in production, but also have the defect of inconvenience and time consuming in assembling.

2. A door provided with a door screen must be opened and closed when a person gets in or out of it. It is often that a person forgets to close the door, and mosquitoes fly in. Alternatively, the door screen is not tightly closed, and mosquitoes get indoors.

3. Damage rate of screens is high, while the pressing strips on the edges of the screens shall be removed when the window screens and door screens are to be' changed. This process of changing is quite time consuming, and assembling and changing of the screens is supposed to be done by professional persons. Therefore, users feel quite inconvenient in changing screens.

Object of the Invention It is an object of the present invention to overcome or ameliorate some of the disadvantages of the prior art, or at least to provide a useful alternative.

Summary of the Invention There is firstly disclosed herein a netting structure comprised of: a long pressing sheet, wherein, a bending portion is provided at the middle between two longitudinal edges of said long pressing sheet, one of said longitudinal edges is provided with an engaging groove, while the other of said longitudinal edges is provided with a protruding engaging strip adapted to engaging in said engaging groove; a plurality of nettings, the upper edges thereof are clamped in said long pressing sheet, the neighboring edges of every left one and right one of said nettings are lapped with each other; a plurality of short pressing sheets secured by clamping beneath said nettings respectively, a bending portion is provided at the middle between two longitudinal edges thereof; wherein, one of said longitudinal edges of each said short pressing sheet is provided with an engaging groove, while the other one of said longitudinal edges is provided with a protruding engaging strip adapted to engaging in said engaging groove; said long pressing sheet of said netting structure is secured with the rear side thereof on a door or a window with fixing members, the upper edge of each of said Settings is placed in said long pressing sheet, said protruding engaging strip of said long ressing sheet is bent down about said bending portion to tightly engage said nettings and g g" n [R:\LIBLL]08267.do:TCW:KEH said protruding engaging strip in said engaging groove; the lower ends of said nettings are pulled down by force of gravity of said short pressing sheets, thus mosquitoes are prevented from getting indoors.

The netting structure of at least a preferred- embodiment of the present invention is comprised mainly of a long pressing sheet, a plurality of nettings and a plurality of short pressing sheets. Wherein, the long pressing sheet and the short pressing sheets are provided at the middle thereof each with a bending portion, and are provided each on one edge thereof with an engaging groove while on the other edge thereof with a protruding engaging strip capable of snapping into the engaging groove. The long pressing sheet can be secured above a door or window to mount the nettings by means of the engaging groove and the protruding engaging strip thereof The neighboring edges of every left netting and right netting are lapped with each other. The short pressing sheets are secured by clamping beneath the nettings, so that the nettings are pulled down by force of gravity, and thus the nettings can prevent mosquitoes from getting indoors.

The present invention, at least in a preferred embodiment provides a netting structure which is easy for assembling and is surely secured. Wherein, the rear side of the long pressing sheet is fixed above a door or window. Then the upper edges of the nettings are placed in the long pressing sheet and the protruding engaging strip thereof is bent down to engage the nettings and the protruding engaging strip thereof in the engaging groove. Every left netting and right netting are partially lapped with each other, then the lower edges of the nettings are fixed by clamping each with a short pressing sheet. This a convenient assembling mode suitable for self assembling and changing of the nettings by a user.

The present invention, further preferably provides a netting structure of which certainty of mounting the nettings can be increased. Wherein, an engaging belt is fixedly provided above the engaging groove of the long pressing sheet. The engaging belt is provided with a lot of stud points for increasing certainty of mounting the nettings in the long pressing sheet. The short pressing sheets can be provided therein each with a pendant plate, so that the nettings can be pulled downwardly to increase plainness of the nettings.

/The present invention, yet further preferably provides a netting structure which can lower cost of production. Wherein, the long pressing sheet and the short pressing [R:\LBLL08267docTCWKEH sheets are molten and made integrally of plastic by molding. The window screens and door screens made from such netting structure is cost lower and easier for work in production than the conventional window screens and door screens. And engaging by the engaging grooves and the protruding engaging strips can make mounting of the nettings more certainly.

Brief Description of the Drawings A preferred embodiment of the invention will now be described, by way of example only, with reference to the accompanying drawings, wherein: Fig. 1 is an analytic perspective view of an embodiment of the present invention; Fig. 2 is a schematic view showing engaging of a protruding engaging strip with an engaging groove; Fig. 3 is an engaging belt of an embodiment of the present invention; Fig. 4 is a schematic view showing assembling of an embodiment of the present invention; and Fig. 5 is a schematic view showing fixing of the protruding engaging strips into the engaging grooves of an embodiment of the present invention.

Detailed Description of the Preferred Embodiments Referring to Fig. 1-3, the netting [R:\LIBLL8267.doc:TCW:KE structure A shown in the drawings is comprised mainly of: a long pressing sheet 10 made of plastic, a soft bending portion 11 is provided at the middle between the longitudinal edges thereof (as shown in Fig. wherein, one longitudinal edge of the long pressing sheet 10 is provided with a C shaped engaging groove 12, while the other longitudinal edge thereof is provided with a protruding engaging strip 13 capable of engaging in the C shaped engaging groove 12; an engaging belt 20 provided with a lot of T shaped stud points 21 (as shown in Fig. 3) equidistantly distributed on its front side, the rear side thereof can be firmly stuck to the inside lower portion of the long pressing sheet a plurality of nettings 30, the upper edges thereof are clamped in the long pressing sheet 10, the neighboring edges of every left netting and right netting are lapped with each other; a plurality of short pressing sheets 40 secured by clamping beneath the nettings 30 respectively, a soft bending portion 41 is provided at the middle between the longitudinal edges thereof as is the case of the long pressing sheet 10; wherein, one longitudinal edge of each short pressing sheet 40 is provided with a C shaped engaging groove 42, while the other longitudinal edge thereof is provided with a protruding engaging strip 43 capable of engaging in the C shaped engaging groove 42; a plurality of pendant plates 50 each in the form of a sheet plate and mounted in one of the short pressing sheets 40, with the pendant plates 50, the nettings 30 can be pulled downwardly by the gravity of the pendant plates 50 to increase plainness of the nettings 30 (please A of the present invention has the following advantages and effect in use: 1. The long pressing sheet 10 and the short pressing sheets 40 are all made of plastic, mounting of the nettings 30 is done by only mounting the upper and the lower edges of the nettings 30. Therefore, cost of production of the door or window screen of present invention is lower than that of a conventional door or window screen.

2. All the nettings 30 are mounted by means of the long pressing sheet 10,-the short pressing sheets 40, the protruding engaging strips 13, 43 and the C shaped engaging groovesl2, 42. And mounting can be done only by placing and engaging the protruding engaging strips 13, 43 and the nettings 30 in the C shaped engaging groovesl2, 42. In view of this, assembling is fast and convenient.

3. The top ends of the nettings 30 mounted in the long pressing sheet 10 can be hooked on the engaging belt 20 provided with a lot of stud points 21. The hooking action can increase certainty of mounting of the nettings 30 on the long pressing sheet 4. The nettings 30 not only can be fast mounted in the long pressing sheet 10 and the short pressing sheets 40, but also can be removed for cleansing from the latter by fast removing of the protruding engaging strips 13, 43 from the C shaped engaging groovesl2, 42. This is a netting structure for convenient assembling and easy removing.

By the force of gravity acted on the nettings 30, and by lapping between every two neighboring nettings 30, the nettings 30 can be opened and closed conveniently, and the effect of preventing mosquitoes from getting indoors can be achieved.

Having thus described the technical structure of my invention with industrial utility, novelty and improvement, and the embodiment described above and shown in the drawings are only for illustrating a preferred embodiment of the present invention, and not for giving any limitation to the scope of the present invention. It will be apparent that various modifications or changes can be made to the elements of the present invention without departing from its scope. Accordingly, all such equivalent modifications and changes also fall within the scope of the appended claims and are intended to form part of this invention.

Therefore, what I claim as new and desire to be secured byLetters Patent of the United States are:

Claims (3)

1. A netting structure comprised of: a long pressing sheet, wherein, a bending portion is provided at the middle between two longitudinal edges of said long pressing sheet, one of said longitudinal edges is provided with an engaging groove, while the other of said longitudinal edges is provided with a protruding engaging strip adapted to engaging in said engaging groove; a plurality of nettings, the upper edges thereof are clamped in said long pressing sheet, the neighboring edges of every left one and right one of said nettings are lapped with each other; a plurality of short pressing sheets secured by clamping beneath said nettings respectively, a bending portion is provided at the middle between two longitudinal edges thereof; wherein, one of said longitudinal edges of each said short pressing sheet is provided with an engaging groove, while the other one of said longitudinal edges is provided with a protruding engaging strip adapted to engaging in said engaging groove; said long pressing sheet of said netting structure is secured with the rear side thereof on a door or a window with fixing members, the upper edge of each of said nettings is placed in said long pressing sheet, said protruding engaging strip of said long pressing sheet is bent down about said bending portion to tightly engage said nettings and said protruding engaging strip in said engaging groove; the lower ends of said nettings are pulled down by force of gravity of said short pressing sheets, thus mosquitoes are prevented from getting indoors.

2. A netting structure as claimed in claim 1, wherein, said long pressing sheet is stuck with sticking members on a door or window, or is drilled with a plurality of holes and is secured with the rear side thereof on a door or window by means of fixing members.

3. A netting structure as claimed in claim 1, wherein, said long pressing sheet is provided above said engaging groove thereof with an engaging belt for increasing certainty of mounting said nettings in said long pressing sheet. Dated 3 August, 2000 Chin-chien Yang Patent Attorneys for the Applicant/Nominated Person SPRUSON FERGUSON [R:\LIBLL]08267.doc:TCW:KFH