Patent Application
20200002969
The present invention relates to a shade screen, and more particularly to a shade screen comprising a reinforcing connector which is capable of providing enhanced structural support between the shade screen and an external object.
A conventional shade screen usually comprise a screen fabric and a plurality of fasteners provided corner portions of the screen fabric for applying a certain amount of tension to the screen fabric. The screen fabric may then be stretched and extended and to be hung on an external object through the fasteners.
As an example, referring to
Each of the fasteners 20P has a connecting loop 21P and a fastening loop 22P wherein the reinforcing fabric piece 12P is connected to the connecting loop 21P while the fastening loop 22P is adapted for connecting to an external object, such as a connecting pin provided on a wall.
There exist several disadvantages in relation to the above-mentioned conventional shade screen. First, the screen fabric 10P is usually subject to a certain amount of tension when in use. When the fasteners 20P are connected to an external object, the tightening wire 20P must be tightened with respect to the screen fabric 10P so that the screen fabric 10P can be adequately stretched for providing proper shading to the people or objects underneath. That means the screen fabric 10P is subject to a considerable amount of tension when in use. When the tension exerted is too large, the connection between the main fabric piece 11P and the reinforcing fabric piece 12P may break.
Second, the tension exerted on the screen fabric 10P is transmitted by the tightening wire 30P, which is usually made by metallic material. As a result, when the tightening wire 30P is tightened, the portion of the fabric screen (such as the edge portion of the main fabric piece 11P) which is in the vicinity or in contact with the tightening wire will be subject to considerable amount of force. Since the screen fabric 10P is made by fabric material, the portion of the fabric screen (such as the edge portion of the main fabric piece 11P) which is in the vicinity or in contact with the tightening wire may break when the shade screen is used for an extended period of time.
The above-mentioned disadvantages substantially shorten the general lifespan of the shade screen. As a result, there is a need to develop a shade screen which may improve upon the above-mentioned conventional shade screen and minimize the possibility of breakage on the part of the screen fabric.
Certain variations of the present invention provide a shade screen comprising a reinforcing connector which is capable of providing enhanced structural support between the shade screen and an external object.
Certain variations of the present invention provide a shade screen comprising a reinforcing connector which is capable of preventing stress concentration on any part of the screen fabric so as to minimize the possibility of breakage.
Certain variations of the present invention provide a shade screen comprising a reinforcing connector which eliminates the need to have the main fabric piece and the reinforcing fabric piece for a screen fabric.
In one aspect of the present invention, it provides a shade screen, comprising:
a screen fabric having a main fabric portion and at least one corner portion;
a tightening wire attached on the screen fabric, the tightening wire having a main portion and a tightening portion extended on the corner portion of the screen fabric; and
a reinforcing connector, which comprises:
a head connecting member having a through connecting slot and a peripheral securing slot formed along a peripheral edge portion of the head connecting member; and
a reinforcing body having a receiving cavity, a first reinforcing groove and a second reinforcing groove formed on two sides of the receiving cavity respectively, the first reinforcing groove and the second reinforcing groove being aligned with two ends of the peripheral securing slot of the head connecting member, in such a manner that the corner portion of the screen fabric is securely attached in the receiving cavity, while the tightening portion of the tightening wire is arranged to pass through the first reinforcing groove and the second reinforcing groove and fittedly receive in the peripheral securing slot so that the tightening wire is substantially reinforced and supported in the reinforcing connector as to prevent the tightening wire from breaking out of the screen fabric when the screen fabric is subject to external force.
Another aspect of the present invention provides a reinforcing connector for a shade screen having a screen fabric having a corner portion and a tightening wire having a tightening portion, the reinforcing connector comprising:
a head connecting member having a through connecting slot and a peripheral securing slot formed along a peripheral edge portion of the head connecting member; and
a reinforcing body having a receiving cavity, a first reinforcing groove and a second reinforcing groove formed on two sides of the receiving cavity respectively, the first reinforcing groove and the second reinforcing groove being aligned with two ends of the peripheral securing slot of the head connecting member, in such a manner that the corner portion of the screen fabric is securely attached in the receiving cavity, while the tightening portion of the tightening wire is arranged to pass through the first reinforcing groove and the second reinforcing groove and fittedly receive in the peripheral securing slot so that the tightening wire is substantially reinforced and supported in the reinforcing connector as to prevent the tightening wire from breaking out of the screen fabric when the screen fabric is subject to external force.
This summary presented above is provided merely to introduce certain concepts and not to identify any key or essential features of the claimed subject matter.
The following detailed description of the preferred embodiment is the preferred mode of carrying out the invention. The description is not to be taken in any limiting sense. It is presented for the purpose of illustrating the general principles of the present invention.
Referring to
The screen fabric 10 may have a main fabric portion 11 and at least one corner portion 12.
The tightening wire 20 may be attached on the screen fabric 10, and may have a main portion 21 and a tightening portion 22 extended on the corner portion 12 of the screen fabric 10.
The reinforcing connector 30 may comprise a head connecting member 31 and a reinforcing body 32. The head connecting member 31 may have a through connecting slot 311 and a peripheral securing slot 312 formed along a peripheral edge portion 313 of the head connecting member 31.
The reinforcing body 32 may have a receiving cavity 321, a first reinforcing groove 322 and a second reinforcing groove 323 formed on two sides of the receiving cavity 321 respectively. The first reinforcing groove 322 and the second reinforcing groove 323 may be aligned with two ends of the peripheral securing slot 312 of the head connecting member 31, in such a manner that the corner portion 12 of the screen fabric 10 may be securely attached in the receiving cavity 321, while the tightening portion 22 of the tightening wire 20 may be arranged to pass through the first reinforcing groove 322 and the second reinforcing groove 323 and fittedly receive in the peripheral securing slot 312 so that the tightening wire 20 may be substantially reinforced and supported in the reinforcing connector 30 as to prevent the tightening wire 20 from breaking out of the screen fabric 10 when the screen fabric 10 is subject to external force.
According to the preferred embodiment of the present invention, the screen fabric 10 may be configured from sufficiently strong material which may be capable of providing shade to the people or object underneath. The screen fabric 10 may be configured to have a wide variety of shapes, such as rectangular, square, or triangular. In this preferred embodiment, the screen fabric 10 may have a rectangular cross-sectional shape and may have four corner portions 12.
The main portion 21 of the tightening wire 20 may be embedded in the main fabric portion 11 of the screen fabric 10. Thus, the screen fabric 10 may further have a plurality of receiving pockets 13 peripherally extended along peripheral edges 111 of the main fabric portion 11 wherein the main portion 21 of the tightening wire 20 may be received in the receiving pockets 13.
In this preferred embodiment, the tightening wire 20 may have a plurality of tightening portions 22 which may be defined as the portions of the tightening wire 20 which does not receive in the receiving pockets 13 and extend along the corner portions 12 of the screen fabric 10 and the reinforcing connectors 30. Thus, the tightening wire 20 may peripherally extended around the screen fabric 10 in such a manner that the main portion 11 may be received in the receiving pockets 13 while the tightening portions 22 may be arranged to expose out of the receiving pockets 13 and engage with or couple to the corresponding reinforcing connectors 30.
The tightening wire 20 may be configured from metallic material which may withstand and exert a considerable amount of tension to the screen fabric 10. At the same time, however, the structural integrity of the entire screen fabric 10 may be reinforced and ensured by the reinforcing connector 30.
The reinforcing connector 30 may be configured from metallic material for allowing enhanced structural integrity. The head connecting member 31 and the reinforcing body 32 may be integrally connected with each other to form an integral structure of the reinforcing connector 30. The head connecting member 31 may have a substantially circular cross section in which the through connecting slot 311 may be formed on the head connecting member 31 for allowing an external object, such as an external connector, to pass through the head connecting member 31. The through connecting slot 311 may also have a substantially circular cross-sectional shape.
The peripheral securing slot 312 may be indently formed along the peripheral edge portion 313 of the head connecting member 31. The peripheral securing slot 312 may be utilized to accommodate the corresponding tightening portion 22 of the tightening wire 20 when the tightening wire 20 is tightened with respect to the screen fabric 10.
On the other hand, the reinforcing body 32 may have a tapered cross section shape and extend from the head connecting member 31. A width of the reinforcing body 32 may gradually increase from the near the head connecting member 31 to near the screen fabric 10, as shown in
As shown in
The base member 326 may further have a plurality of retention edges 3261 inwardly extended from the first sidewall 324 and the second sidewall 325 respectively for retaining the position of the top covering member 327. Specifically, the retention edges 3261 are positioned above the top covering member 327 when it is connected to the base member 326. Thus, the top covering member 327 may have two side engagement edges 3271 adapted for engaging with the retention edges 3261 of the base member 326 when the top covering member 327 is connected to the base member 326. A thickness of the side engagement edges 3271 may be slightly less than a thickness of other parts of the top covering member 327 so as to facilitate effective engagement between the engagement edges 3271 and the retention edges 3261.
The first reinforcing groove 322 may be formed as a space surrounded by an inner surface of the first sidewall 324 and the corresponding retention edge 3261, while the second reinforcing groove 323 may be formed as a space surrounded by an inner surface of the second sidewall 325 and another corresponding retention edge 3261.
The top covering member 327 may further have two blocking flanges 3272 outwardly extended from the two engagement edges 3271 for filling the gap formed between the head connecting member 31 and the two retention edges 3261 of the base member 326. Moreover, the blocking flanges 3272 may also bias against a corresponding top portion 3262 of the retention edge 3261 so that when the reinforcing connector 30 is subject to external pulling force, the top covering member 327 may be securely engaged with the base member 326.
The top covering member 327 may further comprises a plurality of frictional members 3273 spacedly formed on an inner surface 3274 thereon for normally biasing against the corner portion 12 of the screen fabric 10. Each of the frictional members 3273 may have an elongated shape and may be slightly protruded from the inner surface 3274 of the top covering member 327. The frictional members 3273 may be arranged to bias against the corner portion 12 of the screen fabric 10 so as to retain the corner portion 12 in the receiving cavity 321, even if the screen fabric 10 is subject to external pulling force.
The operation of the present invention is as follows: the reinforcing connector 30 may be provided on one corner portion 12 of the screen fabric 10. The corner portion 12 of the screen fabric 10 may be inserted into the receiving cavity 321 of the reinforcing body 32. The corner portion 12 may be secured in the receiving cavity 321 by the connectors 328 penetrating the connecting holes 329. At the same time, a corresponding tightening portion 22 of the tightening wire 20 may be arranged to pass through the first reinforcing groove 322 and the second reinforcing groove 323. When the tightening wire 20 has been tightened, the tightening portion 22 may be accommodated in the first reinforcing groove 322 and the second reinforcing groove 323 and the peripheral securing slot 312 of the head connecting member 31.
One skilled in the art would appreciate that when the tightening portion 22 of the tightening wire 20 is secured in the reinforcing connector 30, the tightening portion 22 is securely reinforced and supported by the reinforcing body 32 and the head connecting body 31. Moreover, the screen fabric 10 does not need to have any reinforcing fabric piece as required in conventional screen fabric. The corner portion 12 of the screen fabric 10 may be secured in the reinforcing body 32.
In view of the above, the problems discussed in relation to conventional shade screen may be substantially prevented. First, the reinforcing fabric piece may not be necessary because the entire corner portion 12 of the screen fabric may be secured in the reinforcing body 32. Second, the tightening portion 22 of the tightening wire 20 may be protected in the first reinforcing groove 322 and the second reinforcing groove 323. In other words, the portion of the tightening wire 20 which is subject to the maximum amount of tension is now prevented from directly contacting with the screen fabric so as to prevent the screen fabric from breakage, as in the case of conventional shade screen discussed above.
The present invention, while illustrated and described in terms of a preferred embodiment and several alternatives, is not limited to the particular description contained in this specification. Additional alternative or equivalent components could also be used to practice the present invention.
