JP6117777B2 - Flexible impact protection case, its manufacturing method and its usage - Google Patents

Description

  The present invention relates to a flexible impact protection case and a manufacturing method thereof.

[Cross-reference of related applications]
This application is a continuation-in-part of co-pending patent application No. 13/271594 filed on Oct. 12, 2011 by the applicant of the present application. US provisional patent application No. 61 filed on Nov. 7, 2011. / 556749 claim priority. Both of these applications are incorporated by reference in their entirety.

  Protective cases for sensitive equipment, devices or instruments are usually designed to have a pad material inside or outside or inside and outside. Often, such pad materials are formed from a continuous sheet of protective material such as neoprene, foam material and / or laminate material. Such protective cases often do not provide sufficient protection from shock, vibration, etc. The protection of the device is improved by the use of thicker materials, but an increase in thickness is generally undesirable because of the additional bulkiness and weight gain. In addition, increased weight and volume may not be desirable in smart electronic devices. This is because users find high value for products that are slim and / or lightweight.

  Many electronic devices have a screen interface that is used to display information to the user, and it is necessary to expose the screen during use. However, the screen interface is delicate and easily broken when dropped or subjected to an impact.

  Portable electronic devices or medical devices such as laptop computers also have a screen interface, and many of these devices are hinged (hinge type) to provide protection from dropping or impact to protect the screen interface. ) Including protective cover. However, many cell phones, medical devices, and tablet computers or netbooks do not include such a cover. Thus, an impact on the screen or edge can cause significant damage to the screen and / or equipment. Furthermore, some devices such as iPad are very thin and brittle, and their durability against impact is limited. As a result, many companies produce covers, cases, and storage shells that are sold separately from the equipment, and these belong to several different categories.

  One type of case is a hard plastic storage shell that can include an inner or outer pad made of rubber or silicon. A rigid containment shell provides some protection but also has weaknesses. First, the storage shell is created in a size and shape tailored to a specific device and cannot be used with “next generation” devices, such as when the device is updated or changed. In addition, stores must stock multiple inventory storage units (SKUs) for a range of equipment, even the same type of equipment. Another weakness, even with a soft additional element, would not be able to adequately protect a face portion or an open screen from falling. Even equipment that includes a protective bezel does not absorb enough energy unless it is made fairly thick, and falling on the screen may destroy the screen. Another type of case is a soft “skin” type, typically made of rubber, silicone or thermoplastic elastomer (TPE) material. As with a hard plastic storage shell, skins are made to match the size and shape of a particular device and cannot be used in “next generation” devices. Another weakness is that they are thin and can provide only a small impact protection, providing only a degree of rubbing protection. They will not protect the device from large drops on the screen side, corners or corners, and will not provide torsion protection if the device is bent or twisted by impact. .

  Another type of protective case is a portfolio type (document box type) protective case, and electronic devices can be attached with clips, elastic bands, or other fasteners. However, these types of protective cases do not provide screen side impact protection and generally provide little impact protection.

  Lightweight, flexible, can provide improved impact protection, especially can provide impact protection for exposed screens or “in use” equipment, limited to one equipment size What is needed is an improved protective case for sensitive devices, equipment, or instruments that can be used in a wide range of equipment sizes.

(nothing special)

  In one embodiment, the present invention relates to a protective case for a device. This protective case includes a panel having a flexible structure including an inner surface of the panel and an outer surface of the panel. One of the panel inner surface and the panel outer surface in the structure form includes a stretchable material, and one of the panel inner surface and the panel outer surface in the structure form includes a non-stretchable material. At least one flexible retainer is provided on the inner surface of the panel. The at least one flexible retainer includes a layer of rate dependent material disposed between the extensible inner material layer and the non-extensible outer material layer.

  Some embodiments include an inner cover surface, an outer cover surface, and a cover with a first cover edge and a second cover edge on both sides. This cover is connected to the panel in the form of a structure at the first edge. In some embodiments, the cover can include an optional protective element. Some embodiments may include a fixture that maintains the cover in a closed position and allows the protective case to be arranged as an easel.

  The above and other features and advantages of the present invention will become apparent from the more detailed description of the embodiments of the present invention as illustrated in the accompanying drawings. The same member number represents the same member. These drawings are not necessarily drawn to scale, and include exaggerated cases to clearly explain the principles of the present invention.

FIG. 1 is a front perspective view of a single panel type protective case according to an embodiment of the present invention. FIG. 2 is a front view of the protective case shown in FIG. FIG. 3 is a rear view of the protective case shown in FIG. FIG. 4 is a plan view showing an example of a molded panel that can be used to form the protective case shown in FIG. FIG. 5 is a sectional view taken along line 5-5 of the sheet shown in FIG. 4 and shows the thickness of the stitching groove. FIG. 6 is a sectional view taken along line 5-5 of the sheet shown in FIG. 4, and shows the width of the suture line. FIG. 7 is a perspective view of one corner holder shown on the protective case shown in FIG. 8 is a cross-sectional view taken along line 8-8 of the corner holder shown in FIG. FIG. 9 is a sectional view taken along line 9-9 of the corner holder shown in FIG. FIG. 10 is a front perspective view of the protective case shown in FIG. 1 and shows an electronic device held in the protective case by a corner holder. FIG. 11 is a cutaway side view of the protective case and the electronic device shown in FIG. 10, showing a curved state of the protective case, and illustrating an open space between the inner surface of the protective case and the rear surface of the electronic device. Yes. FIG. 12 is a front perspective view of a one-side protective case according to another embodiment of the present invention. FIG. 13 is a front view of the protective case shown in FIG. 14 is a rear view of the protective case shown in FIG. FIG. 15 is a perspective view of a portfolio type protective case according to another embodiment of the present invention, illustrating a closed state. 16 is a perspective view of the portfolio-type protective case in the open state shown in FIG. FIG. 17 is a front perspective view of the protective case shown in FIG. 16 and illustrates an electronic device held in the protective case by a corner holder. FIG. 18 illustrates the exterior of the protective case according to another embodiment of the present invention. FIG. 19 illustrates the inside of the state where the protective case shown in FIG. 18 is opened. 20 is a front perspective view of the protective case shown in FIG. 18, illustrating a closed state. FIG. 21 is a front perspective view of the protective case shown in FIG. 18, illustrating an open state. FIG. 22 is a front view of the protective case shown in FIG. FIG. 23 is a rear view of the protective case shown in FIG. FIG. 24 is a front perspective view of the protective case shown in FIG. 21 and illustrates an “in-use” form. FIG. 25 is a perspective view of the protective case shown in FIG. 10 in use on the user's thigh. FIG. 26 is a perspective view of the protective case in the easel form shown in FIG. FIG. 27 is a perspective view of a protective case according to another embodiment of the present invention having a magnetic closure. FIG. 28 is a perspective view of the protective case shown in FIG. 27, showing the outer surface in an open state. FIG. 29 is a perspective view of the protective case shown in FIG. 27, showing the inner surface in an open state. 30 is a cross-sectional view of the cover portion of the protective case shown in FIG. 27 taken along the line 30-30. FIG. 31 is a perspective view of a protective case according to another embodiment of the present invention that is a sleeve type, and illustrates a closed state. 32 is an enlarged schematic cross-sectional view showing a zipper (fastener) attachment portion and a shape of an internal shock absorber (bumper) of the protective case of FIG. 31. FIG. 33 is an enlarged cross-sectional view of the device housed in the protective case shown in FIG. 31, and illustrates the state of the device placed in the shock absorber.

Detailed Description of Exemplary Embodiments
The present invention relates to a protective case that allows full access to a device and protects the device from impacts on the front, back, and sides of the device when the device is housed inside and in use. This protective case provides improved protection for devices with a screen interface such as found in many electronic and medical devices.

  This protective case is lightweight and flexible and provides improved impact protection, especially for exposed screens or “storage use” equipment. This protective case protects the corners and edges of the device and provides torsion protection that protects the device from being twisted or bent by impact. Further, the protective case is not limited to one specific size because of its flexible structure, and can be used for a certain range of device sizes. The protective case is also comfortable to hold and transport due to its flexible nature. Because of its flexible nature, the protective case can be comfortably used on knee boards and other body attachments.

  The protective case has another advantage that it can accommodate a wide variety of devices. Thus, the protective case can be designed and used to protect all types of fragile equipment or articles (hereinafter collectively "equipment") that require protection, such as musical instruments, wine and liquor bottles, crystals, etc. .

  The protective case and process of the present invention provides improved impact protection, is lightweight and compact, has improved aesthetics, reduced manufacturing costs, improved fit, and reduced friction of stored items (equipment). provide. Further, in some cases, the protective case can be designed as a sanitary case that can be washed, withstands high temperatures, and is durable against caustic chemicals used in commercial laundry.

  FIGS. 1-11 generally illustrate an exemplary protective case according to one embodiment of the present invention. As shown in the figure, the protective case 10 includes a peripheral edge portion “P”, a front surface portion 12 and a rear surface portion 14 facing each other, and has a front surface 12a and a rear surface 14a, respectively. The holders 30 are arranged in the respective corner portions of the panel 20 (hereinafter “corner holders 30”). In this embodiment, the corner holders 30 are each substantially triangular and are arranged in the corner portion of the protective case 10. However, a regular engineer in this field does not necessarily require the corner holder to have a triangular shape, and may be a protective device of any size, shape, position, and / or form, and the holder may be placed elsewhere. It will be understood that it can also be arranged. For example, in another form of the holder 30, a shape such as a bezel (not shown) that extends around the protective case 10 and extends inward from the peripheral edge with a width sufficient to maintain the protective device within the protective case. One holding device can also be included. In another embodiment, one or more holders 30 can be placed on each side, eg, each of the four sides, or can be placed at multiple points along the side, or It is also possible to arrange the sides together. The retainer can be provided to provide unhindered access to the port portion, control portion and screen area and to grip the device.

  Further, and optionally, a binding 40 can be provided around the protective case 10 for functional and aesthetic reasons.

  The protective case 10 can include multiple access ports to provide access to various functional components of the storage device and / or to external devices such as chargers, audio ports, camera lenses, and so on. This access port can be placed at any desired position to correspond to the position of the feature as seen in commercial electronic equipment. In this embodiment, the protective case 10 includes an audio port 50 that extends through one of the corner holders 30 and a camera port 60 that extends through the panel 20. The camera port 60 can be installed on a flat raised pad 65 formed in a protective case. It is designed to be pressed against the back of the device when in use. If desired, the camera port 60 can include a film body (not shown) integrated within the camera port to minimize or eliminate fragments from entering the camera port. If desired, the pad 65 can also include a recessed area (not shown) disposed around the camera port 65 to receive the membrane. This can be attached to the pad by welding or the like, for example. When a film body is used, it is desirable to use a non-yellowing optical film body that is durable against washing.

  Alternatively or additionally, the edge of the protective case containing the binding is flexible to expose and provide access to various functional devices. This is an important feature. Because the edge of the protective case (with / without binding) includes a rate dependent foam that keeps the edge of the device fully protected during use, but easily accommodates charging cables, for example It can be bent as it can, or it can be folded.

  The panel 20 can be formed of various materials. Suitable materials and methods for producing the panels are disclosed in US Patent Publications 2007/0261274, 2008/003614, 2009/0255625. These applications disclose methods that can be used to mold panels and retainers, and the panel and retainer molds can form layers under conditions suitable to minimize or eliminate foam material in the grooves. It can be designed to be pressed over and at the same time to bond the layers with chemical glue or heat welding or both.

  In some embodiments, the panel 20 can include structural forms of materials, which additionally have different aesthetic and functional characteristics, and are one of a variety of materials that can be varied as needed or desired for a particular application or design. The above layer bodies can be included.

  As used herein, “structured material” (structural material) is sufficient to provide sufficient structural stability that can be molded into a given shape, and has sufficient strength against weight to provide a stable structure for the protective case. It is a material that is durable to the environment in which it is used.

  Structural forms of material include a variety of materials including, but not limited to, polymeric materials, including foamed polymeric materials, composite materials, and the like. As an example, the structural form of material includes rate dependent material. Examples of rate dependent materials include, but are not limited to, d3O and Polon XRD. An exemplary structural form of material is the rate dependent foam “PoronXRD” manufactured by Rogers Corporation. In this example, the density of the Poron XRD foam is from about 1 to about 40 pounds / cubic foot (pcf), more preferably from about 5 to about 30 pcf, more preferably from about 1 to about 25 pcf, Preferably about 15 to 25 pcf.

  Materials in structural form include but are not limited to other materials including synthetic and / or non-synthetic materials (other materials include but are not limited to paper, cloth, metal, metallized plastic, plastic film, metal foil, And / or their analogs, and composites, laminate materials, and / or combinations of materials including at least one of them). Other suitable materials include, but are not limited to, fabrics, leather, vinyl, composites, laminates thereof, and / or combinations including at least one of them. When a cloth is used, it may be a synthetic cloth or a non-synthetic cloth, a knitted cloth, a woven cloth, a non-woven cloth, a laminated cloth, and a combination cloth including at least one of them. These optional materials can be laminated and / or coated on one or both sides to impart desired functional or aesthetic features such as water repellency.

  If the panel or part of the panel needs to be stretched, it may be desirable to use a stretchable material. Thus, in some embodiments, it may be desirable to combine or co-mold extensible materials and structural forms of materials. Because stretchable materials improve the flexibility of the protective case and impart other desirable properties such as increased surface tension that would be desirable if water repellency, breathability, water permeability, and anti-slip performance are desired. To do. For example, when improved breathability is desired, the extensible material is meshed. “Extensible material” as used herein can be restored to its original shape or position after being bent, stretched, compressed, or otherwise deformed, and used to mold the material or protective case Any moldable material that is durable to the method and durable to the environment of use.

  Other examples of suitable stretchable materials include, but are not limited to, any stretchable substrate including TPE films and / or coatings, composites, laminates, and combinations thereof. Polyester and polyether thermoplastic polyurethanes (TPU) have been found suitable for use alone or in laminated form. One exemplary material is polyester thermoplastic polyurethane (TPU) manufactured and sold by Bayer (sold under the trade name PS5400). Suitable film thicknesses are from about 1 milli-inch (mil) to about 15 mils, preferably from about 2 mils to about 10 mils, and more preferably from about 3 mils to about 7 mils. However, if increased durability is desired, the film thickness can be increased, for example, from 15 mils to 60 mils and is limited only by the properties and performance of the film after molding. When used in a laminated form, the strength and friction properties of laminating the film on the substrate are improved, so that the film thickness can be reduced. When laminated to a stretched substrate (such as circular knitting or lycra fabric), a TPE film thickness of about 1 mil or less can be easily used depending on the application form.

  Other examples of suitable stretchable materials include, but are not limited to, synthetic and non-synthetic knits, woven and non-woven fabrics, composite materials thereof, laminate materials thereof, and combinations thereof. Examples of suitable fabrics include fabrics containing fibers such as elastane, also known as spandex, lycra, and dollastane. This fiber is included in the fabric by wrapping the elastane fiber with non-stretchable yarn (natural or synthetic), processed into a fabric made of other fibers, or using woven pure elastane yarn Depending on the type of fabric and end use, it will provide varying degrees of elasticity depending on the proportions contained in the fabric. For example, about 2% would be sufficient to keep the garment in its shape. On the other hand, compression forms such as athlete clothing, underwear, and sportswear can include up to about 40% elastin, or more elastin if desired.

  Examples of other suitable stretchable materials include the synthetic and non-synthetic knitted fabrics, woven and non-woven fabrics, composites thereof, laminates thereof, and combinations thereof described above, and TPE films and / or Coatings, composites thereof, laminates thereof, and combinations thereof are included.

If the panel or part of the panel requires higher stiffness or compression performance, the structural form material can be combined with a non-stretchable material or a relatively small stretchable material. Examples of non-stretchable materials include, but are not limited to, non-woven materials, including non-woven fabrics, leather, woven fabrics such as ballistic fabrics. Examples of such materials include, but are not limited to, reinforced and non-reinforced polyester, nylon, rayon, polyamide (eg, aramid and para-aramid), and the like and combinations thereof. Examples include Cordura, Kevlar, Twaron, Spectra, Zylon, their ripstop fabric, and combinations thereof. A suitable ballistic material is a woven 1680 denier ballistic nylon sold by Rocky Woods (Loveland, Colorado, To Street SE, No. 8, No. 418), about 12 oz / sq yard (oz / yd ^2). ), Approximately 1 to 1.25 oz / yd ² of polyurethane coating is treated on one side for water resistance, and has a durable water-repellent (DWR) finish on the other side To do. Other suitable materials include 1050 ballistic nylon and cordura. Both are either polyurethane coated and / or DWR treated or not and are available from the Rockwoods and Brookwood Roll Goods Group (Wauregan, Putnam Road, 275). In order to provide greater moisture resistance and moisture durability, it is desirable that these fabrics be coated with a polyurethane coating of 2.0 oz / yd ² or more to be stronger. Furthermore, the TPE layer on these fabrics will further enhance water resistance.

  In one embodiment, panel 20 includes a layer of structural form material (hereinafter “structural layer”) and a layer of extensible material adjacent to the structural layer (hereinafter “stretched layer”). In this embodiment, it is desirable that the inner surface (front surface) 12a of the protective case be formed of a stretched material that “grips” an electrical tool housed in the protective case.

  In another example, the panel 20 can include a structural layer disposed between facing stretched layers. In this embodiment, the inner surface 12a and the outer surface (rear surface) 14a of the protective case "grip" the (electronic) device placed in the protective case, and also grip the surface on which the device in use is placed or held. It is desirable to be formed of a stretched material.

  The corner holder 30 can include any of the materials used for the panel 20 as described above. The thumbprint side of the corner holder is preferably formed of a material that "grips" the equipment contained in the protective case. Thus, the corner member can include a TPU or other film or material having some “grip” characteristics on the surface of the corner holder facing the device. Although TPU has been found to be suitable for gripping various devices, silicon or any TPE or possible cloth or skin will also have such grip properties. One exemplary material is Bayer polyester TPU (PS5400). Other polyester TPUs can easily be used and any TPU or TPE can be a good choice. Suitable film thicknesses are from about 1 milli-inch (mil) to about 15 mils, preferably from about 2 mils to about 10 mils, and particularly preferably from about 3 mils to about 7 mils.

  Optional binding 40 may include any material used for panel 20 as described above. However, it would be desirable to wrap the edges with ballistic nylon or cordura with DWR or any other friction and contamination resistant or waterproof material to provide durability and waterproofness.

  One exemplary panel 20 is shown in FIGS. In this embodiment, the composite panel 20 has a size that is larger than the device to be protected because it has an edge protection portion that extends beyond the periphery of the device. As shown, the panel 20 includes a molded multilayer structure, including a structural layer disposed between a non-extensible inner layer (front surface) 12 and an extensible outer layer (rear surface) 14.

  In many embodiments, the panel can be a “concave medallion type” with a large area and a small area as described above, but this is not necessarily so. However, including a region of foam thickness that is very thin or “nearly zero” improves case flexibility and minimizes or prevents foam delamination to increase durability. The nearly zero thickness region provides flexibility, which may be particularly useful when the portion is sewn in a compressed state to accommodate the size of the electronic device that can be afforded. Such areas prevent or minimize the passage of moisture and contamination through the closed cell structure, thus protecting the area completely enclosed by the approximately zero foam thickness from moisture or contamination. These substantially zero-thickness regions can be easily welded without a bubble structure that absorbs or obstructs the heat of welding, so that the heat sealing treatment of the regions is further facilitated. As noted above, this will help seal film or other transparent material over the camera hole, or edge seal to make the panel a more waterproof structure. The substantially zero-thickness region around the edge provides a structure that is more durable against washing.

Panel 20 also includes an optional groove 22 that extends generally away from the peripheral edge 24 of the sheet. It would be advantageous to include such a groove if the retainer and / or optional binding is attached by stitching. The groove portion 22 forms a bumper portion 26 adjacent to the peripheral portion, and the bumper portion can be enclosed in the binding material as described above. Groove 22 has a width _{W 1} and the thickness _{T 1,} the bumper portion 26 and a thickness _{T 2} and width _{W 2.} If you are an expert, understand that these thicknesses and widths can be chosen arbitrarily. For example, the width W ₁ suturing tool can accommodate, but thin enough for suturing, is selected to be sufficiently thick so as to minimize or prevent defects due to suturing operation. For example, a thickness T ₁ of about 0.030 inch and a bumper portion thickness T _{2 of} about 0.125 inch are suitable to form a larger bumper portion when stitched with the corner holder 30. Has been discovered.

  In this embodiment, the panel 20 and the corner holder 30 are stitched together along the stitch line to form a support and protection edge or bumper portion for the device in the protective case.

7-9 illustrate enlarged views of the corner holder 30 according to one embodiment. The retainer also includes an optional groove 22 that extends away from the two sides 30a and 30b. If the retainer and / or optional binding is attached to the panel by stitching, it is advantageous to include such a groove. The groove 22 provides a bumper portion 26 adjacent to the edges 30 a and 30 b of the protector 30. Groove 22 has a width _{W 1} and the thickness _{T 1,} the bumper portion 26 and a thickness _{T 2} and width _{W 2.} If you are an expert, understand that you can choose these thicknesses and widths as you wish. For example, the width W ₁ is large enough to accommodate a suture tool, but thin enough for suturing can be chosen sufficiently thick defects from suturing operation in order to minimize or prevent. For example, it has been discovered that the same thickness and width as the panel 20 are suitable.

  The corner holder 30 has a sufficient thickness to protect the device from impacts, especially when it includes a screen interface. The retainer has a thickness of about 0.040 inches to about 0.500 inches, preferably about 0.100 inches to about 0.350 inches, and more preferably about 0.150 inches to about 0.300 inches. Can do.

The corner holder 30 further includes a notch 34 and a recessed area 38 for stress relief during manufacture and use. In this embodiment, the recessed area 38 has a concave or thumbprint shape to assist in inserting the device into the protective case. The presence of the recessed area can also minimize exposure of the device and / or screen surface when the device is placed in a protective case. This is advantageous for access to function keys that would otherwise be hidden under the retainer 30. Increasing or decreasing the thickness for the holder will change the degree of exposure of the equipment and the lower screen of the holder 30. For example, exposure of the equipment can be increased by increasing the thickness T ₃ for the holder in the region 31. This further moves the recessed area away from the holder during use.

  The corners are three-dimensionally shaped as shown for aesthetic purposes and to provide access to allow the device to be removed and housed with fingers. The maximization of the thickness in the direction of the stitching edge of the corner is to prevent the device from sliding too much toward the corner or edge. It may be desirable to wrap the entire object in a film as shown. The recessed area of the corner holder provides great thickness for the corners that need to be protected, but also provides flexibility for instrument insertion and access below the corner holder that contacts the entire area of the screen. The recessed area of the corner holder is not essential but may be advantageous. This is because these areas maximize the dimensions including the thickness of the corner holder. As corner holder dimensions increase, especially as the thickness of the area closest to the stitching edge increases, the ability of the holder to “lock” the device within the protective case has been enhanced and varied in size. The ability to accommodate other equipment is provided. The thickness area of the corner holder can be pressed to grip different sizes of equipment in a reasonable range.

  For professionals, the groove, bumper portion, recessed area and notch are desirable to facilitate attachment of the retainer 30 to the panel 20 and may be of any size, shape and / or form required. Will understand. In addition, it may be desirable to include additional notches in the retainer to provide additional flexibility during manufacture and use.

  By having a molded foam corner that locks the device, the constraining foam that sews the molded panel to the flange edge can protect the device from dropping in virtually any type or direction. A protective case can be provided. The lateral movement of the equipment is restricted. This is because the device is fixed by a corner holder. The corner holder absorbs the impact of falling on the screen side. This is because the thickness separates the screen from the impact surface. The back side of the molded panel also absorbs energy. The recessed area of the corner holder rises above the screen in that area and is made thin, but provides additional protection due to its ability to absorb energy by the flexibility of that area upon impact You can also

  Construction of the protective case 10 includes the operation of attaching the holder 30 to the composite panel 20 that is substantially square. The retainer 30 can be attached to the panel 20 by a variety of techniques, such as, but not limited to, stitching, bonding, welding, or combinations thereof. In some embodiments, the retainer 30 may be attached to the panel 20 in a compressed state so that the panel 20 has a concave shape. When assembled, the retainer 30 is positioned so that the “grip” surface is adjacent to the iPad. When sewn into this concave shape, materials that are relatively non-stretchable, such as Cordura or ballistic nylon cloth for composite panels or other non-stretchable materials, are twist-protected or twisted for delicate equipment. Has a unique synergistic effect that provides protection. In use, the device is inserted into the concave non-stretchable structure under considerable compression and pressing force against the corner holder. As a result, the device itself is provided with additional torsional stability due to the pressure of the non-stretchable fabric structure and is constrained from deflecting forward toward the open screen side by the compression force of the non-stretchable panel. Thus, the structure of the flexible protective case provides a torsional or torsional protection that is surprising in the event of an impact. The foam thickness of the corner holder makes it possible to steadily grip equipment of different dimensions.

  An optional binding 40 is disposed around the panel 20 and extends slightly beyond the groove on the panel 20 and the corner holder 30. Optional binding 40 may be attached by a variety of techniques, such as, but not limited to, stitching, gluing, welding, or combinations thereof.

  In this embodiment, the inner surface 12a is formed of a stretchable material that "grips" the device contained in the protective case, and the outer surface 14a of the protective case has improved friction resistance and / or high strength in the intended use. And / or desirably formed of a non-stretchable material that can provide sliding properties. If the ballistic fabric cannot be co-molded with the panel 20, the fabric can be attached to the outer surface by various attachment techniques including, but not limited to, stitching, gluing, welding, and the like.

  In this embodiment including an optional binding 40, the binding is attached by stitching. Accordingly, the structure of the panel 20 and the holder 30 each include a stitching groove, and the binding is disposed around the panel and is bent at the edge of the panel after the holder is attached to the panel. The binding is then sewn to the panel through all layers along the suture line.

  10 and 11 are a perspective view and a cross-sectional view of an electronic device 70 (hereinafter referred to as “device 70”) placed in the protective case, and the charging plug of the device 70 is connected to the corresponding audio port 50 of the protective case 10. The camera lens on the back side of the device 70 is exposed to the corresponding audio port 50. As illustrated, the device 70 is disposed in the protective case 10, and the corner holder 30 is disposed in a corresponding corner portion of the device 70. The holder 30 is combined with the inner surface of the protective case 10 to “grip” or hold the device 70 within the protective case 10. In this embodiment, the corner holder 30 is in a compressed state, and the panel 20 is forcibly deformed into a concave shape as shown in FIG. As a result of the concave deformation of the panel 20, a spacer region “S” is formed between the back surface of the device 70 and the front surface of the protective case 10. Space S is useful. This is because it provides heat dissipation, provides storage space, and minimizes or prevents sound waves emitted from the speaker from being muted or suppressed. This protective case can be used as is or placed in a sleeve for complete transport and screen protection.

  12-14 illustrate another embodiment of an exemplary protective case 100 of the present invention. In this embodiment, the panel 20 includes a molded multilayer structure, which is a structural layer disposed between a non-stretchable inner layer (front surface) 12 and a stretchable outer layer (rear surface) 14. Is included. Thus, in this embodiment, the surface of the protective case and the surface of the corner holder that contacts the device when inserted into the protective case have a “grip” surface to help hold the device in the protective case.

  In this embodiment, the protective case is constructed such that the corner holder 30 is in a compressed state as in the above-described embodiment, and the panel is forcibly deformed into a concave shape as shown in FIG. The protective case can be used as it is or in a sleeve for complete transport and screen protection.

  15-17 illustrate one embodiment of an exemplary portfolio-type protection case 200 of the present invention. This portfolio configuration provides screen protection during transportation, but would not be essential for indoor use. The same materials and construction methods as in the previous embodiment can be used to construct this protective case.

  As illustrated, the protective case 200 includes a holding panel 202 and a cover panel 204. Each includes an optional binding 40 at the outer edge. In this embodiment, cover panel 204 is attached to panel 202 using a variety of attachment methods. In this embodiment, panels 202 and 204 are the same size and shape, and are attached to each other along the edge by a mediating tool such as a suture or a hinge (not shown).

  In this embodiment, the panel 202 has the same structure as that of the protective case 100 and includes an edge peripheral portion “P” and the front surface portion 12 and the rear surface portion 14 facing each other. Each of them has a front surface 12a and a rear surface 14a, and the holders 30 are disposed at the respective corner portions of the panel 20 (hereinafter referred to as “corner holders 30”). In other embodiments disclosed herein, each of the holders 30 has a substantially triangular shape and is disposed at a corner portion of the protective case 10.

  As shown, the protective case 200 includes a zipper closure 25, such as a hook and loop tape, a waterproof and / or gas resistant zipper, a plastic zipper (eg, zip lock type), a pillow flap closure, Alternatively, other types of closures such as any other closure method can be used. The zipper closure 25 can be attached to the outer edge of the panel by stitching along the suture line adjacent to the zipper teeth, and the panel at the end of the closure minimizes or prevents defects from the stitching operation. Is thick enough to provide protection in the zipper area. The portfolio-type protective case utilizes a zipper edge, but the upper portion can be attached by other fasteners such as, but not limited to, belts, velcro tape, magnets, clips, and the like.

  The protective case can be constructed by stitching, but if stronger waterproofness is desired, stitching can be changed to heat sealing, adhesion, welding, or the like.

  If desired, the cover panel 204 can include a liner 23. This is attached to the inner surface of the panel 204, for example, by stitching. The cover panel 204 can also include a pocket portion 25 formed of the same material as the liner 23. If desired, the panel 204 can include additional pockets or receivers for paper, writing instruments, cell phones, chargers, and so on.

  The protective case 200 can include an optional insert (not shown) disposed between the liner and the panel 204. This may involve any hard material, or hard material, or it may be hard enough, preferably a relatively light hard impact resistant plastic such as polycarbonate, acrylonitrile butadiene styrene (“ABS”), Polyvinyl chloride ("PVC"), polypropylene ("PP"), laminates thereof, composites thereof, and composite structures that are combinations thereof may be included.

  An optional binding 40 is provided along the peripheral edge of the panel and extends slightly beyond the stitching groove of the panel and corner holder.

  A normal level of expert will understand that any lightweight, rigid, impact resistant material can be used as a rigid support structure for the protective case. Optionally, the rigid material of the protective case can be designed to have its length and width longer than that of the equipment housed in the protective case and provide additional edge protection for the edge of the equipment.

  FIG. 17 is a perspective view of the device 70 placed in the protective case 200. The charging plug of the device 70 is exposed to the corresponding audio port 50 of the protective case 10. As illustrated, the device 70 is accommodated in the protective case 10, and the corner holder 30 is disposed at a corresponding corner portion of the device 70. The holding tool 30 “grips” or holds the device 70 in the protective case 10 together with the inner surface of the protective case 10.

  18 through 23 generally illustrate one embodiment of an exemplary “storage and use” type protective case 400 of the present invention. This storage-use protective case provides screen protection during transportation and can be formed into various forms, for example, as a keyboard. The same materials and construction methods as in the previous embodiment can be used to construct this protective case.

  As illustrated, the protective case 400 includes a holding panel 402 and a cover panel 404. Each of these includes an optional binding 40 at the outer edge. In this embodiment, the cover panel 404 is attached to the panel 402 by an intermediate hinge 90. As shown, the cover panel 404 includes three fold lines 410.

  Cover panel 402 may also include an optional liner (not shown). This is attached to the inner surface of the panel 402, for example by stitching. If desired, the panel 402 can also include additional pockets or receivers for paper, writing instruments, cell phones, chargers, and the like.

  Cover panel 402 may also include at least one optional protective element 420. The protective element 420 can be co-molded with the liner material or can be molded separately and attached to the liner by a variety of techniques such as suturing, gluing, welding, and the like. This embodiment includes a single square protective element 420 that extends between opposite edges of the panel 402. This is stitched to the liner between the two fold lines 410.

  The protective case 400 can also include one or more optional inserts (not shown). In this example, panel 402 can include three optional inserts (not shown) that are placed in pockets (not shown) created by stitching the liner along fold line 410. The optional insert can include any relatively light hard impact resistant material as described above.

  In this embodiment, the panel 402 is identical in structure to the protective case 100 and includes a peripheral edge “P” and facing front and rear portions 12 and 14 corresponding to the front and rear surfaces 12a and 14a, respectively. The holders 30 are arranged in the respective corner portions of the panel 20 (hereinafter referred to as “corner holders 30”). As in the other embodiments, each of the holders 30 is substantially triangular and is disposed at a corner portion of the protective case 10.

  In this embodiment, the protective case of the present invention includes at least one fastener and maintains the cover in the closed position when not in use. For example, the protective case 400 includes two interconnectable fasteners 75 and 77 that are used to close the protective case. In use, the buckle sandwiches the two edges when closed. The fixing device 75 includes a web 75s attached to the outer surface facing the protective case, and corresponding quick release buckle type fixing devices 75a and 75b are attached to the end of the web 75s. Similarly, the fixture 77 includes a web 77s attached to the opposing outer surface of the protective case, and corresponding quick release fixtures 77a and 77b are attached to the end of the web 77s. In this embodiment, the web is attached to the protective case body by stitching, but the ordinary technician will appreciate that a variety of other attachment methods are available. This protective case includes a buckle-type closure, but a normal engineer can replace or add a variety of other closures such as zippers, velcro tape, magnets, clips, etc. You will understand that

  FIG. 24 is a perspective view of the protective case 400 in the storage usage mode in a state where the outer surface faces inward and the device 70 is placed in the protective case. As illustrated, the device 70 is housed in the protective case 400, and the corner holder 30 is placed in a corresponding corner portion of the device 70. The corner holder 30 “grips” or holds the device 70 in the protective case 10 together with the inner surface of the protective case 10.

  If you are a regular engineer, this protective case can be used for various purposes such as the user's arms, legs, thighs, luggage, backpacks, medical equipment, and kitchen handles (eg cooking assistance equipment) as desired. It will be understood that it can be attached to a suitable support member.

  FIG. 25 is a perspective view of a protective case 400 in the form of a keyboard that is attached to the user's thigh and is in a storage and use state. When used as a keyboard, the outer surface of the protective case is positioned adjacent to the user's thigh and the outer material can “grip” the user's thigh. Similarly, the web 75 can be elastic, providing assistance in gripping the protective case to the thigh / support. It is a unique feature of this protective case that the outer surface of the protective case is sufficiently flexible so as to comfortably wrap the user's thighs, arms, etc. while providing sufficient device protection capability. This is achieved by the use of an outer surface with a longitudinal support that envelops the arm or thigh, etc., and an optional protective element in the longitudinal direction, but is also suitable when used as a cover Screen protection can be provided.

  As shown in FIG. 26, the panel 404 can be folded along a fold line 410 to provide an easel configuration.

  FIGS. 27-30 illustrate another embodiment of a protective case 500 in a stowed condition with a magnetic closure and a retractable transport handle 560 according to the present invention. The same materials and construction methods as in the previous embodiment can be used to construct this protective case including the retractable handle 560.

  As shown, the protective case 500 includes a retaining panel 502 and a cover 504, each including an optional binding 40 at the outer edge. In this embodiment, the cover 504 is attached to the panel 502 by an intermediate hinge 90.

  In this embodiment, the holding panel 502 is similar in structure to the protective case 100, and includes a peripheral portion “P”, a front surface portion 12 and a rear surface portion 14 having a front surface 12a and a rear surface 14a, respectively. A holder 30 is disposed in the corner portion. Similar to the other embodiments disclosed herein, the retainer 30 is substantially triangular and is located at the corner of the protective case 500.

  As illustrated, the cover 504 includes a cover panel 506 and a liner panel 508 that are in a face-to-face relationship. In this embodiment, the cover panel 504 includes four pockets formed by at least partially stitching the cover panel 506 and the liner panel 508 along the fold line 510 from the opposing short edge of the cover panel.

  The cover panel 504 can also include one or more optional inserts to provide stability to the cover. Prior to the work of attaching the optional binding, four optional inserts 520 are placed in the pockets. The optional insert can include a relatively light and hard impact resistant material such as polycarbonate as described above.

  The cover panel 504 can also include at least one protective element and can provide impact resistance performance for the front side of the equipment encased in a protective case. This embodiment includes two square protective elements 530 that extend between opposing short edges of cover 504. The protective element can be formed from a variety of materials, can be co-molded with the liner material, or can be molded separately and attached to the liner panel 508 by a variety of techniques such as stitching, gluing, welding, and the like. In this embodiment, the protective element 530 is the same material as the corner holder and panel and is sewn to the liner panel 508 between the fold lines 510.

In this embodiment, the protective case includes at least one fastener and maintains the cover in a closed position when not in use. For example, the protective case 500 optionally includes a magnetic fixture. This includes a tab 530 extending from the holding panel 502. Two magnets M ₁ and M ₂ (shown in broken lines) are placed in the tab 530 and close the protective case with a magnetic closure. Two additional optional magnets M ₃ and M ₄ (shown in dashed lines) are provided on the cover panel 504 to fold the cover into the easel configuration, and the magnet keeps the protective case in the easel configuration. The tab 540 can be made of various materials, but may be the same material as the cover panel described above. In this embodiment, the magnet M is sewn in place, but any technique can be used to maintain the position of the magnet.

  31 to 33 illustrate a protective case 600 in the form of a sleeve according to another embodiment of the present invention.

  The protective case 600 is, for example, a mirror image of each other and can be constructed from two panels 20 attached to each other. As shown in the drawing, the two panels 20 are sewn together along the suture line in a state where the outer surface (rear surface) 14a faces each other. As shown, the protective case 600 includes the zipper closure 25 as in the previous embodiment, but other types of closures as described above may be utilized.

  After the panels 20 are stitched together and the zipper 25 is attached, the protective case is turned over and the edges are placed adjacent to each other to form a support internal bumper 610, and the groove 620 is used for equipment (not shown). It is designed to be suspended in the protective case 600.

  If you are a regular engineer, the aforementioned materials and techniques can keep screen access unobstructed in dry or wet environments, including underwater, for a variety of electronic devices that need protection. It will be understood that it can be used to manufacture protective cases. The ability to withstand commercial-level washing is also available for other contaminated environments including, but not limited to, mud environments, chemical exposures, hospitals, the military, and so on. One skilled in the art will appreciate that the techniques described above can be modified and / or combined with other features so that they can also be used to protect other articles.

[Advantages of the Invention]
The protective case of the present invention has one or more of the following advantages: (1) Providing lightweight impact resistance; (2) The protective case is flexible and is unique to one type of (electronic) equipment. Unlike other types of protective cases that are designed for use, they can also be used for (electronic) equipment of different dimensions; (3) the method of manufacturing protective panels and holders is economical Improved; (4) provide screen protection for a lightweight “storage-use” protective case with a single panel; (5) linear protective irregularities on the inner cover of the “storage-use” protective case; Providing medal form; (6) Folding cover provides easel form; (7) Clip-type strap extender provides knee board for storage use; (8) Clip-type extension Dar provides a knee strap that, when combined with a flexible panel, allows the protective case to be strapped to the user's limb when combined with a flexible panel; (9) The flexible panel provides a protective case and oven panel (kitchen aid) (10) A protective cover provides a place for embroidering or embossing, for example, a company logo; (11) A clip-type extender forms a handle or an accessor pouch (12) Use a continuous clip attachment to add additional components and / or accessories (eg accessor pouches, flexible keyboards, flexible solar panels, velcro handles, etc.) to the protective case Can be installed Rukoto; (13) Extender strap can be elastic or rigid, it can be adjusted in length.

  Note that terms such as “first” and “second” do not represent the order or importance, but are used to distinguish them from each other. Unless otherwise noted, the number of articles is not limited to one. , At least one. Similarly, the “bottom” and “top” are used for convenience of explanation, and do not limit the place. Further, “about” refers to the periphery of the numerical value (eg, including an error relating to a measured value of a specific quantity).

  The compounds are described by standard terms. For example, any position that is not substituted by a listed group is one that is filled by a written bond or has a valence filled by a hydrogen atom. A “-” that does not exist between two letters or two symbols is used to indicate the attachment position of the substituent. For example, -CHO is attached through the carbon of the carbonyl group. Unless otherwise defined, all percentages are by weight. Further, all ranges disclosed herein are inclusive and combinable (eg, “up to about 25 wt%, preferably from about 5 wt% to about 20 wt%). More preferably, “from about 10 wt% to about 15 wt%” is intended to include the end position numbers and intermediate values thereof, such as “from about 5 wt% to about 25 wt%. , From about 5 wt% to about 15 wt% ”, etc.). “± 10%” means that the indicated measured value is from an amount that is minus 10% of the indicated value to an amount that is plus 10%.

  Finally, unless defined otherwise, technical and scientific terms used herein usually have the meanings commonly understood by engineers.

  Although the disclosure of the present invention has been described by using some embodiments, a person skilled in the art may make various changes or equivalents to these elements without departing from the technical scope of the invention. Understand that it can be replaced. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the invention without departing from the essence of the invention. Therefore, the present invention is not limited to the specific embodiments, but includes all embodiments within the technical scope described in the claims.

Claims (24)

A protective case for the device,
A flexible structural panel having a panel inner surface and a panel outer surface, wherein one of the panel inner surface and outer surface of the structural panel is made of a stretchable material and the other is made of a non-stretchable material. A panel,
At least two flexible holders installed at the corners of the inner surface of the panel, wherein the holders are made of a speed-dependent material disposed between the extensible inner material layer and the non-extensible outer material layer . Containing a layer, with a holder,
A cover providing an inner cover surface, an outer cover surface, and a first cover edge and a second cover edge in opposing relation, the cover being interconnected to the structural panel at the first cover edge When,
A protective case comprising:   The protective case according to claim 1, further comprising a logo provided on one or both of the inner cover surface and the outer cover surface.   The protective case according to claim 1, wherein the cover is made of a stretchable material. The protective case according to claim 3, wherein the structural panel and the cover are connected at an edge of the second cover to form a compression sleeve.   The cover includes at least one flexible protective element disposed on one or both of the inner cover surface and the outer cover surface, and the at least one protective element is disposed between two facing layers. 2. A protective case according to claim 1, comprising a layer of rate dependent material.   The protective case according to claim 5, wherein the at least one protective element includes a logo.   2. The protective case according to claim 1, wherein the cover is releasably connected to the structural panel by a releasable fixing tool at the edge of the first cover.   8. The protective case according to claim 7, wherein the releasable fixing member is selected from the group consisting of a buckle, a clip, a hook-and-loop type tape, a zipper, a plastic zipper, and a combination thereof. .   The protective case according to claim 7, further comprising a strap disposed between the structural panel and the releasable fixture.   The protective case according to claim 9, wherein the strap is made of a stretchable material. The cover includes at least one of an inner cover material layer having the inner cover surface, an outer cover material layer having the outer cover surface, and one or both of the inner cover surface and the outer cover surface. Protective elements and
The protective case according to claim 1, wherein the at least one protective element includes a layer of rate-dependent material disposed between two facing layers.   12. The protective case according to claim 11, wherein the at least one protective element includes a logo.   12. The protective case according to claim 11, further comprising a logo provided on one or both of the inner cover surface and the outer cover surface.   The protective case according to claim 11, wherein the inner cover material layer and the outer cover material layer of the cover form at least one pocket portion.   The protective case according to claim 14, further comprising a hard panel placed in the at least one pocket portion.   12. The protective case according to claim 11, wherein the cover includes at least two parallel fold lines, and the cover is folded along the fold lines to form an easel shape.   The protective case according to claim 16, wherein the fold line forms at least three pocket portions, and further includes a hard panel in each pocket portion.   The protective case according to claim 17, wherein the at least one protective element extends from an upper edge of the cover to a lower edge.   19. The protective case according to claim 18, wherein the at least one protective element is provided in parallel and is disposed between at least two of the fold lines.   12. The protective case according to claim 11, wherein both the inner cover material layer and the outer cover material layer are made of a stretchable material.   12. The protective case according to claim 11, wherein both the inner cover material layer and the outer cover material layer are made of a non-stretchable material.   12. The protective case according to claim 11, wherein one of the inner cover material layer and the outer cover material layer is made of a stretchable material and the other is made of a non-stretchable material.   21. The protective case according to claim 20, further comprising a layer of a speed dependent material disposed between the inner cover material layer and the outer cover material layer. Each of the structural panel and the cover has a length and a width. The width of the cover is larger than the width of the structural panel, and the cover extends beyond at least a part of the outer surface of the panel. The protective case according to claim 1.

Images