Patent Application
20120080154
This application claims the priority of Mexican Patent Application No. MX/a/20.10/010,892, filed Oct. 1, 2010, which is hereby incorporated by reference in its entirety.
Embodiments described herein relate to a pneumatic frame for textile of control and/or modification of light used in the cinematographic, industry with the object of manipulates the required illumination at a film set.
There are portable inflatable screens with some features similar to those of the present invention; however, these screens are for the projection of images, movies, etc. They are used in outdoor events; therefore its dimensions should be larger so they can be seen by a lot of people.
Likewise, in the art there is a large number of inflatable movie screens that have been adapted by the staff in a film set for the manipulation of light required according to the needs of such film, however, due to the nature of these screens, which are for image projection, the staff faces a series of difficulties for the adjustment and manipulation of the screen, ranging from management, size, assembled, repair and removal, among other factors.
The technology of inflatable movie screens makes use of four basic components:
1) An inflatable support structure (inflatable frame)
2) A fan to inflate the structure,
3) A removable-visual screen, and
4) A connection device for connecting the removable visual screen, in the support structure.
Unlike the above mentioned components, the inflatable screens do not require additional devices for their handling, because once they are inflated, remain in the ground during all the time of the projection and do not need to move them from a side to another as in the case of the inflatable frame of the present invention. Therefore, besides the four basic components which are mentioned also the devices that are placed to fix them to the ground and not fall when strong winds occur during the use are important.
There are wide differences between the pneumatic frame proposed in this invention and the existing patents and they are described below:
Most of the inflatable screens usually are attached to the frame and do not necessarily have to be removable. In the patent FR 2598541 A1, to hold the material which contains the advertising to the inflatable frame, a nylon rope is passed through the rings placed at regular intervals on the periphery of the frame. This gripping method is simple but it does not generate enough tension in the textile, causing wrinkles in it.
U.S. Patent 2002/0.116849 includes a first zipper (38) on the top of the arc and a second zipper (40) which is in the sheet that contains the advertising; the zipper does not cover the entire inner periphery of the frame it only covers the curved region of the dome-shaped structure. The remainder, i.e., the straight portion contains releasable mounting means (14) which connect the sheet that contains the advertising with, the inflatable frame. In one embodiment, the release strap (42) includes D-rings (44) sewn and assembled in the first portion (21) and the second side (22) of the frame and the corresponding hooks (46) are stitched on the first side (31) and second portion (33) of the sheet which contains the advertising (30). For their use, the hooks (46) are placed in the respective D-rings (44), thus ensuring the sheet which contains the advertising to the inflatable frame. Other alternatives proposed by U.S. Patent 2002/0116849 for hold the advertising to the frame are through a system of springs, a plug and socket connector, etc.
In the patent U.S. 2002/0116849 the parts of mandolins can not be separated, the piece is complete without the risk of losing parts of the mandolin at the time the structure is disassembled.
U.S. Patent 2004/0035034 A1 where the structure is made of multiple layers of tubes forming a rectangular prism, one side of the structure is covered with material where is printed the advertising. The material which containing images or the advertising is placed on the top of the tubular structure through hooks and a kind of loop of binding tape which is provided on the tubular structure.
U.S. Patent 2005/068618 which also proposes a structure based on tubes or in a swarm shape, unlike U.S. Patent 2004/0035034 A1, it does not place on the tubular surface other material containing the images or the advertising since the same tubular structure provides the basis on which is printed the advertising or images which is to be projected. This structure is sewn or heat welded.
The screen of patent EP 1006504 is attached to the frame through frilled seams and alternatively can be placed an adhesive tape on the seams to prevent leakage of vas in the case of U.S. Patent 2010/0007949 A1, the screen is connected directly to the inflatable frame by means of adhesives or can be welded or sewn, thus the screen could be secured to the frame inflatable. In the inflatable projection displays the same material for projects images always is used or in the case of printed advertising it is selected the appropriate material (usually referred to plastic material preferably PVC) that is compatible with printing techniques currently used or as mentioned in U.S. patent 2005/068618 wherein the tubular members should be white or silver to receive the projection or image which is projected.
The above documents mentioned in the art do not have the features of this invention, embodiments which include an inflatable plastic structure that has a number of devices for securing the frame to a suitable, environment as well as securing a textile to the same with the enough tension thanks to the type-setbolt devices which has the pneumatic frame in its periphery.
The nature of this structure allows the repair of any of its component parts without the necessity of compromising the entire structure of the pneumatic frame object of this invention.
The pneumatic frame of embodiments described herein may be used in the film industry or of digital or analogue capture of images or photos, in order to reflect, block, filter, blur and make any use of light and to an optimal control thereof at the time of capturing the image, allowing shorten its assembled time compared with any similar structure, conventional used in the art, while solving and repairing the security problems generated by possible impacts of a rigid structure, caused by the sail effect generated in exteriors when the wind blow generates tension on the structure.
As opposed to the prior art, for the inflatable frame described herein not only is important the support where the textile will be placed which will work for obtain a better lighting in a film or taking photographs but also other characteristics are taken into account. Moreover, where the proposed frame is used in order to reflect, block, filter, blur and make any use of light and to have a control thereof it is generally required to continually change the type of textile with which working, which would be inappropriate to permanently adhere the textile to the frame.
The accompanying drawings are included to provide a better understanding of the invention and are incorporated and constitute part of this specification. The drawings illustrate the embodiments of the invention and together with the description serve to explain the principles of the invention.
The embodiments will be referred in detail; the examples are illustrated with the accompanying drawings. Whenever be possible, the same reference numbers are used in the drawings and the description to refer to the same parties.
The mooring system of the textile of the pneumatic frame (1) allows the use of textiles previously acquired by the user, its pre-existing inventory can be mounted without modification.
Textile (9) is subjected along the entire periphery of the pneumatic frame (1) thanks to an elastic (7) which is intertwine between the channel which form the tucks (6) and stitched slit (10) which includes the textile (9). The elastic must go through a tuck and a stitched slit by all the periphery of the pneumatic frame, in order to ensure the pressure of the elastic and hence the fastening of the textile to the frame, type-setbolt insurances will be placed (11) in the elastic for each stitched slit shown in the back (
It is recommended to use an elastic by separated for each side of the pneumatic frame, in order to retain its elastic nature and pressure for longer.
The hang type-setbolt insurance is well know in the art for the securing any conductive fiber, since it allows its passage through its hole and holds it with the manual pressure being exerted. They are used in various industrial fields such as textiles and apparel, footwear, among others. This invention makes use of it as a tool for optimal functioning together with all the elements that embody the present invention.
The assembly by pieces of the pneumatic frame allows that in case of damage to any parts of PVC pneumatic hose either by ripping or any injury resulting in deflation of the piece, it is changed by another equal piece without modifying or compromise the integrity of entire internal structure of the pneumatic frame.
Parts of 20 feet (13) are screwed into each end to an elbow which forms the corners of the pneumatic frame. In turn, each free end of each elbow shall be connected to pieces of 8 ft (14), two of these in turn connected to the two pieces of four feet (15), thus forming the pneumatic frame structure, each part of equal size set in a front tote another one.
Due to the needs and operations of each film set, the pneumatic frame object of the present invention may be of the following sizes:
20×20 feet
12×12 feet
8×8 feet
6×6 feet
The above mentioned sizes are recommended for optimal handling and versatility of the fastening pneumatic frame of textiles of control and/or modification of light, adjusting the necessary measures to scale in proportion to the parts that make up the inflatable structure of the pneumatic frame, however, it not restricted the sizes of the pneumatic frame, just to the above referenced only for objects of this invention, since in practice, the present invention allows improvisation of various dimensions of their internal structure that are required according the work spaces.
The periphery of the already assembled pneumatic frame assembly is 2 inches wide or less, which allows the reduction of shadow which sometimes reflects in the modification and filtering applications of light.
The frame should be inflated through the valves which it has at each end, thus giving the body to the same with the air entering in its structure.
| Number | Date | Country | Kind |
|---|---|---|---|
| MX/A/2010/010892 | Oct 2010 | MX | national |
