WO2019224753A1

WO2019224753A1 - Smartphone case or holder with elastic structure and auxiliary devices to allow user go hand-free on their smartphones

Info

Publication number: WO2019224753A1
Application number: PCT/IB2019/054256
Authority: WO
Inventors: Cong Nhan Huynh; Nguyen Phuong Uyen HUYNH; Cong Nghia Huynh
Original assignee: Cong Nhan Huynh
Priority date: 2018-05-24
Filing date: 2019-05-23
Publication date: 2019-11-28

Abstract

Smartphone case or holder with elastic structure and easy to manufacture in seamless form consists of elastic groove holding the smartphone's side. The width of the groove can be adjusted as it is capable of stretching horizontally. Such groove has cross section of Ω, ω, Σ, M, C or U shape, in which U shaped cross section includes at least one edge on the inside of each end; or a groove can be made of 2 side bars and a bottom bar, in which 2 side bars are rectangle bars or comb-shaped long rectangle bars with many comb teeth and the bottom bar is made of thin slabs connecting to lower edges of the two side bars. The bottom bars have curved-shape, such as C, U, S, Ω, ω letters or sine shape or they are in the form of folded lines, such as N, M, W, V, X letter or Zigzag shape. There is a connector or a joint attaches to bottom edges of the grooves to form a smartphone holder that is capable of attaching to external devices. In addition, the distance between grooves can be adjusted thanks to the fact that connecting bars between grooves are thin elastic bars with curved or folded shapes. This back case can be used as either back case or holder of smartphone to attach to external objects or devices. And the back case or holder of smartphone and its auxiliaries allow user uses go hand-free on their smartphones.

Description

Title of the Invention

Smartphone case or holder with elastic structure and auxiliary devices to allow user go hand-free on their smartphones.

Field of the Invention

This invention relates generally to a smartphone holder for connecting the smartphone with external objects or devices, or between smartphone holder and the users’ body, which let the user uses his smartphone entirely hands free. In addition, the smartphone holder can be served as smartphone back case or side case with the purpose of preventing smartphone against damages due to mechanical collision and decorating the back and side of smartphones

Background of invention

Mobile phone or smartphone currently (as in 2018) mostly has slim and flat rectangular box shape whose two sides have a U-shaped cross-section provided that bottom of letter U has 2 right angles or curved angles. The back case used to protect smartphone against mechanical collision and decorate the back case of current smartphone (as in 2018) is usually made of flexible plastic plate whose dimensions is approximately the dimensions of smartphone to be insert to smartphone back case (hereinafter referred as smartphone back case); and the smartphone back case is stood against the back of smartphone when putting the smartphone into the case. The back case has side edges connecting to components to hold 4 edges and 4 corners of smartphone which has shape of letter J in which side branches of letter J is on the same side. Because the back case is made of flexible plastic so that the lip of groove can be adjusted the width when inserting the smartphone into the groove, then securing the edges and corners of smartphone. The disadvantage of this type of case is that each type of case is only suitable for a certain type of smartphone, and because it is made of plastic resin so it hard to fix the smartphone to add component parts or component coupling so that the back case can connect with external device and serve as smartphone holder having coupler connecting back case and external devices.

Current smartphone holder compatible with other devices (as in 2018) such as smartphone holder for selfie stick used for self-photographing or self-filming is type of horizontal mount consisting of 3 grooves to hold the bottom, top and side of smartphone. These grooves are pulled together by a pulling force generated by 2 springs twisted in circular cylindrical circumference connecting between two ends of 2 side grooves and 2 twisted springs are located in two tubes capable of pulling in and out. These two tubes include 2 ends connected to 2 ends of grooves holding 2 opposite sides of smartphone. The upper and lower groove of smartphone holder usually has L- shaped cross-section with L-angle of less than 90 ° or a J-shape cross-section with 2 branches of letter L or J on the same side, and the mouth of upper and lower groove turning toward each other. For smartphone holder like smartphone holder for selfie stick, the lower groove is connected to component coupling which is connected to component coupling at the tip of selfie stick to create the distance between smartphone holder and user body. This shaft is capable of adjusting the length, and the coupler often located on the end of spacing shaft has two U-shaped flat plates parallel to each other and connected to end of spacing shaft. The flat plates have 2 circular holes and the coupler on the underside of bottom groove has a flat plate perpendicular to bottom groove. The surface of flat plate is perpendicular to plane formed by bottom groove and top groove. The coupler on the end of spacing shaft secures the coupler into the middle of bottom groove. The wing bolt is passed through 3 holes on 3 flat plates and screwed the nut of wing bolt to secure the angle between spacing shaft and smartphone holder. The disadvantage of this holder is to be hard to secure the smartphone vertically and the thickness of clamp is large; and it also required user to carry out many actions by both hands to insert the smartphone into the holder. This type of holder includes many details that make the production cost high and most of them can only secure the smartphone horizontally while most smartphone users are used to holding smartphones vertically when using a smartphone.

At present, the smartphone holder is equipped with devices to attach smartphone and user body so that user can use the smartphone without holding it, however, most of them can neither secure the smartphone in place to meet the needs of the user nor make user comfortable and convenient for storage in pockets or bags when not in use.

US patent No. USD721356S1 issued on January 20, 2015 to William Benjamin Hasbrook and Sean Michel Stuck for the invention named Mobile Phone Case. This type of case has shape of flat rectangular box and the front insides of the edges are empty so that the smartphone screen is revealed. This case is made of plastics and contains flat plates with the dimension equivalent to that of smartphone to be inserted (hereinafter called smartphone back case) and the smartphone back case is stand against the back of smartphone when putting the smartphone into the case. The case has a perimeter edge attached to the components on perimeter edge to hold 4 edges and 4 corners of smartphone. The grooved-shaped components on perimeter edge has cross section of J shape with the lateral branches of J is on the same side. Thanks for being made of plastic, width of groove mouth can be changed when inserting edges and corners of smartphone into groove and secured edges and corners of smartphone. On the back or side of this type of smartphone case are equipped with holes to ensure that the camera or speakers or microphones or sockets of smartphone are open. This case is only used for a certain type of phone.

US patent No.US096665524Bl issued on December 16, 2003 to Pieter J. J. Niemann for the invention named Cellular telephone holder. This type of cellular telephone holder is used to hold the telephone when the user is walking or running. It consists of a groove holding the lower edge of the telephone whose cross-section is U-shaped and the its back is connected to smartphone’s back case while back case has grooves perpendicular to the lower groove, and the groove holding the upper edge of the telephone whose cross-section is J-shaped and lower branch of J is connected to C-shape so as to the curved shape of the C is directed inwards and its back is connected to smartphone’s back case while back case has grooves perpendicular to the lower groove. The back case connecting to the lower groove are able to slide smoothly on the back case attached to the upper groove thanks to engagement of grooves on 2 back cases and there is a lock to lock 2 back cases together after inserting the telephone into the holder and side of back case has a mounting bracket so that the mobile phone is kept the horizontal position such as hooking on the waistband. This cellular telephone holder has many separate parts that are quite complex, resulting in high production costs and less durable and multiple operations when putting the mobile phone in or out of this type of holder.

Application for US patent No. US20120046083A1 has a priority date of July 08, 2010 for invention named Cell phone holder by Keven H.Klett. This type of cellular phone holder allows the user to hear and speak with hands free. Its structure consists of an elastic curved bar with 2 ends in which one end is connected to a weight and the other is connected to box with an open mouth so as to insert the cell phone. When used, the elastic curved bar will be hooked to a shoulder and the cell phone is placed into the box in a position so that it is slightly below the shoulders and relatively close to the mouth and ears of the user. The disadvantages of this cell phone holder are that the shoulder trap is easy to fall off due the slope down of neck to arm so that the user has to carry extra weight to ensure that the smartphone is balanced and fall on the front of the user's chest and the cell phone is quite far from the user's ears and mouth. US patent No. US5697071A issued on December 09, 1997 to Eagle Fan for the invention named Mobile phone holder structure. This holder structure includes a back case that is made up of two flat plates attached together by means of a screw at the two ends of plates, and on facing surface of each plate has parallel grooves forming parallel paths between the two faces of two flat plates; 2 side clamps on the same side to clamp onto one side of the smartphone shall be connected to leg edge bar with T-shaped cross section and 2 side clamps on the opposite side to clamp onto one side of smartphone shall be connected to leg edge bar with T-shaped cross section. These 2 T-shaped cross section bar are pushed into the groove to create a suitable distance for the smartphone to fit into the distance between the two opposite clamps and fixed by means of two screws with facing longitudinal grooves to let the two plates secure the T-shaped cross-section bars. This type of holder structure has many disadvantages such as having many separate and complex part, changing the distance between the two opposite clamps for each type of phone is quite complex and it is quite thick making the aesthetics of the cell phone holder low.

US patent No. US9170473B1 issued on October 27, 2015 to Zhengliang Li for the invention named Integrated self-photographing apparatus. This self-photographing apparatus includes the holder with U-shaped frame whose two branches are two open tube and a reverse U-shaped frame whose 2 branches are 2 round axles and each of them has overlapped twisted spring. Two branches having spring of reverse U-shaped spring are placed in two tubular branches of U- shaped spring and spring is held by two rings at the top of each branch of the U-shaped frame. The joint capable of creating angle as intended of user is connected to end of spacing shaft which can be protruded or indented; and it includes parallel bars having circular holes and connecting to the underside of U-shaped frame. The flat bars are interlaced with parallel flat bars at the end of the spacing shaft. There is a wing bolt passing through the holes of flat bars connecting to underside of U-shaped frame and passing through holes on flat bar connecting to the end of spacing shaft and screwed the nut to define the angle between the U-shaped frame and spacing shaft. This self-photographing device includes many separate components and requires pulling two clamps to insert the smartphone, in addition, it usually holds the smartphone horizontally and it is also hard to keep in clothes’ pocket or small bag due to it thickness and length.

Summary of the invention The smartphone back case or cellular phone back case (commonly referred to as smartphone back case) is used for protecting or decorating the smartphone; and back case can be served as smartphone holder when connecting components or couplers are added to connect components or couplers of external devices (hereinafter called as smartphone holder to distinguish from common back case), such as smartphone back case cum holder because the back case is integrated with connecting components or coupler so that the back case can be served as smartphone holder, connected to external objects or devices and performed the function of not only protecting and decorating the smartphone but also holding and connecting smartphone to external objects or devices equipped with connecting components or coupler which may be compatible with that of smartphone back case.

Today, smartphone plays an important role in human life because smartphones have been integrated into many applications that serve many different needs for human life in addition to hearing and speaking functions. However, most smartphone users now have to hold their smartphones with their hand when using. At the same time, most of smartphone holder currently hold the smartphone horizontally, while the latter has a rectangular shape and is better suited to hold on the hand vertically which facilitates the keyboard operation on the smartphone screen of fingers. Because of the convenience, the users form habit of using smartphone vertically. Hence, it is necessary to have a smartphone holder that can be connected to external accessories or devices letting user uses his smartphone entirely hands-free, keep the smartphone vertically as well as easy to use with not much effort to insert or take the smartphone out of smartphone holder, and also be compact that can be stored in clothes’ pocket or bag even it is being inserted with smartphones.

Smartphone back case or smartphone holder mentioned in this inventory is the type with elastic structure and other accessories to meet the above-mentioned requirements thanks to high-elastic grooves to hold the sides of smartphone as below:

- The groove holding the side of smartphone is a type that has changeable lip width and cross section shape of C, U, J, W or G letter. The channel of groove is lined with elastic layer such aspolyurethane foam, rubber foam, silicone foam, spiked layer or layer with raised edge made of elastic polyurethane, rubber or silicone. The side groove may have either bottom bar attached to the outside of groove bottom or side bar connected to outside of groove side and both of these bars should be the same length with groove.

- Or the groove holding the side of smartphone is a type whose body is likely to change and cross section forms a pair of letter C flattened vertically provided that two end of letter C is directed towards each other and 2 branches of letter C is connected to 2 branches of letter U upside down and the bottom edge of letter U is connected to the bar holding the bottom of groove. Or the side groove also has cross section forms a pair of letter S including a letter S in forward direction and a letter S in backward direction, and two branches of letter S is connected 2 branches of letter U upside down and the bottom edge of letter U is connected to the bar holding the bottom of groove. The side groove may have either bar holding the bottom of groove which is connected to outer surface of bottom or bar holding the edge of groove connected to the outer surface of bottom. The length of bar holding bottom or side of groove should be same as length of groove.

- Or the groove holding the side of smartphone is a type whose width of bottom of groove is likely to change. The side groove is constituted by a pair of bars served as side walls of groove including elastic bars and as elastic spring to pull 2 side walls of groove close together (hereinafter called as elastic bar of bottom). The elastic bar of bottom is connected to two underside of side walls whose cross section forms a pair of vertical I letter or letter L upside down in which two branches of letter L is directed towards each other or a pair of reserve J letter provided that two branches of letter J is directed towards each other or a pair of letter C with 2 branches of letter C directed towards each other or a pair of letter S whose the upper end is directed outwards or a pair of letter P whose curved line is directed towards each other. The elastic bar of bottom has axial section shape of horizontal I letter or curved line such as letter U or letter C or letter S or W or sine provided that the plane created by curved line is curved to conform with the edges of smartphone or folded line such as letter V or letter N or letter Z or letter M or letter W or letter X or zigzag. In addition, the elastic bar of bottom may have axial section shape is curved line such as letter U or letter C or letter S or letter O or sine. The side groove may have bar holding the bottom or edge of groove which is connected to outer surface of bottom. The length of bar holding bottom or side of groove should be same as length of the groove.

The groove holding 2 opposite or adjacent edges of smartphone with traction force to secure the smartphone thanks to elastic structures as below: - The elastic bar acts like a pull elastic spring. The bar lean against the back of smartphone has shape of curve, zigzag, sine, curved segment, curved segments joined together or zigzag connected to curved segments. The edges on one side of this spring form a straight or bend surface to be fitted with a flat or bend form of smartphone’s back (hereinafter referred to as back spring of smartphone). The shape of back spring of smartphone turned towards the back of the smartphone holder can be either folded lines such as resembling the letter V, N, Z, M, W or zigzag or curved lines such as being shaped like letter C, S, U, W sine shape. The back spring also has shape like letter X or combinations of X providing that ends of X joined together or shape of lozenge adhered to each other at obtuse angles. One end of elastic bar connects back wall of side groove to back case, 2 back walls of two opposite side groove or 2 back walls of lower groove or lower support to back wall of side groove. The elastic bar, which connects the bar holding the back wall of bottom groove with the bar holding the back wall of side groove or with back case or with back wall of side groove or with the elastic bars, is not leaned against the back of smartphone but connecting lower end of left side groove and left end of bottom groove and 1 elastic bar is connected the lower end of right side groove and right end of bottom groove; or the elastic bar connect lower end of bar holding the bottom of left side groove and left end of bar holding the bottom of bottom groove, and connects lower end of bar holding the bottom of right side groove and right end of bar holding the bottom of bottom groove.

Most of smartphone holders mentioned in this invention are seamless without any joints and made of hard plastic which give product exceptional features and advantages including durable, aesthetic, easy to produce, easy to use, cheap, compact. It allows holding the smartphone permanently as a back case and easily to decorate the back of holder with the curves or polylines serving as back case and elastic bar to create traction to pull the side groove close together.

To become a smartphone holder with capable of connecting to external accessories or human body, it should be equipped with coupler connecting to external accessories or human body so that the user can be uses his phone entirely hands-free. These addition couplers should be compact enough to fold into a smartphone holder so that they can be keep in clothes’ pocket or small bag.

Brief description of the drawings: Figure 1 : Back and right view of 3-side smartphone holder with 2 zigzag springs connecting the back case of the holder to 2 side walls of 2 grooves holding side of smartphone. The side grooves are capable of changing their width because its bottom is formed by two V- shaped springs connecting two sides of parallel grooves. The frame of a half of mechanism connecting the holder and external accessories or devices has round hole in parallel with lower edge of smartphone so that the rotary shaft of external device is put into the hole and fixed by wing bolt. Under the frame has twisted teeth to screw the wing bolt. The smartphone holder is inserted with cellular phone and 2 springs and V-shaped springs are all opened.

Figure 2: Rear view of smartphone holder shown in Figure 1. The smartphone holder is inserted with cellular phone and zigzag springs and V-shaped springs of side groove are opened.

Figure 3: Rear view of smartphone holder shown in Figure 1 to 2. The smartphone holder is not being inserted with smartphone and 2 zigzag springs are closed.

Figure 4: Front view of smartphone holder shown in Figure 1 to 3. The smartphone holder is not being inserted with smartphone and 2 zigzag springs are closed.

Figure 5: Rear view of smartphone holder similar to such holders shown in Figure 1 to 4, however, each corner of the zigzag-shaped spring has one round hole to prevent spring against tear of corners. The smartphone holder is not being inserted with smartphone and zigzag springs are closed.

Figure 6: Front view of smartphone holder shown in Figure 1 to 4 and the smartphone holder is inserted with cellular phone. Two V-shaped springs on the 2 grooves holding sides of smartphone are opened to clamp the front and back edge of smartphone.

Figure 7: Rear view of 4-side smartphone holder similar to those mentioned in item 1 to 4. However, this one is equipped further with 3^rd spring connecting the back case of side groove of smartphone. The smartphone holder is inserted with cellular phone and all of 3 springs are opened. Figure 8: Rear view of smartphone holder shown in Figure 1 to 4, in which 2 zigzag springs have slots on the side wall for the purpose of increasing the opening amplitude for the spring. The smartphone holder is not being inserted with smartphone and zigzag springs are closed.

Figure 9: Top view of smartphone holder shown in Figure 1 to 4, in which 2 zigzag springs and V-shaped springs of side groove are opened (being pulled out to observe) and the smartphone holder is inserted with cellular phone.

Figure 10: Left view of smartphone holder shown in Figure 1 to 4, in which 2 zigzag springs and V-shaped springs of side groove are opened to hold the front and back on the left edge of smartphone .

Figure 11 : Left view of smartphone holder is being inserted with cellular phone. The bottom of groove holding the side edge of smartphone is capable of high elasticity and constituted by two V-shaped springs so that these springs are turned toward each other and two ends of springs are connected to 2 side wall of side groove.

Figure 12: Rear view of 2-side smartphone holder consisting of a lozenge-shaped spring adhered to each other at obtuse angles. The spring is opened and the smartphone holder is inserted with cellular phone.

Figure 13: Rear view of 3-side smartphone holder consisting of 2 lozenge-shaped springs adhered to each other at obtuse angles. The spring is opened and the smartphone holder is inserted with cellular phone.

Figure 14: Rear view of 3 -side smartphone holder consisting of 2 sine-shaped springs and 2 short side groove and low height spring. The spring is opened and the smartphone holder is inserted with cellular phone.

Figure 15: Rear view of 3-side smartphone holder consisting of 4 zigzag springs providing that each spring has low height. The back spring is opened and the smartphone holder is inserted with cellular phone. Figure 16: Perspective view of the mechanism helps smartphone holder change its angle to external device. This mechanism includes two toothed-flat plates providing that 2 toothed surfaces are pressed on each other. It can be adhered or separated from each other by rotating the bolts with torsion springs at the top of bolts. The upper plate is connected to bottom of groove; and the lower part helps changing the holding angle of smartphone. A haft of T-shaped coupler is located under the mechanism and connected to haft of coupler of external device that has T- shaped slots.

Figure 17: Perspective view of mechanism helps smartphone holder change its angle to external device. This mechanism includes two toothed-flat plates providing that 2 toothed surfaces are pressed on each other. It can be adhered or separated from each other thanks to the shaft whose one end is stopper and the other end is groove to insert blocking ring and a spring on same side of stopper. The left plate is connected to bottom of groove holding the lower edge of smartphone. A haft of T-shaped coupler is located under the mechanism and connected to haft of coupler of external device that has T-shaped slots.

Figure 18: Perspective view of mechanism helps smartphone holder change its angle to external device. This mechanism includes two toothed-flat plates providing that 2 toothed surfaces are pressed on each other. It can be adhered to each other because the upper plate is made of magnetic metal material and the lower one is made of magnet. The upper plate is connected to bottom of groove holding the lower edge of smartphone. A haft of T-shaped coupler is located under the mechanism and connected to haft of coupler of external device that has T-shaped slots.

Figure 19: Perspective view of mechanism helps smartphone holder change its angle to external device. This mechanism includes two toothed-flat plates providing that 2 toothed surfaces are pressed on each other. It can be adhered to each other because the upper plate is made of magnetic metal material and the lower one is made of magnet. The left plate is connected to bottom of groove holding the lower edge of smartphone. A haft of T-shaped coupler is located under the mechanism and connected to haft of coupler of external device that has T-shaped slots. Figure 20: Left view of l-side smartphone holder. The groove holding the lower edge of smartphone includes bottom of groove and two springs constituting the front side wall and being covered with elastic silicone tube so as to adhere well to the glass and avoid scratching the glass of smartphone. A half of linking mechanism of smartphone holder is screw type and located under the bottom groove.

Figure 21 : Left view of l-side smartphone holder shown in Figure 20. The groove holding the lower edge of smartphone includes bottom of groove and 2 side walls constituted by two S- shaped spring in the back face and two hook-shaped springs on front face. These two springs is covered with elastic silicone tube so as to adhere well to the glass and avoid scratching the glass of smartphone. A half of linking mechanism of smartphone holder is screw type and located under the bottom groove.

Figure 22: Cross section of elastic silicone tube that covers spring on the front side of the smartphone holder shown in Figure 20 and 21. The rectangular-shaped cross section of silicone tube has with a T-shaped face that connects to the middle to increase grip on the smartphone screen and avoidscratching the glass of smartphone, at the same time, increase the elastic amplitude of the side groove of the smartphone holder.

Figure 23: Left view of smartphone holder shown in Figure 1 and rear view of holder installed with speaker and electrics wire from the connector (jack) at the bottom of bottom groove to contactor of speaker.

Figure 24: Left view of smartphone holder shown in Figure 1 and rear view of holder installed withreserve battery holder and electrics wirefrom the connector (jack) at the bottom of bottom groove to contactor of reserve battery holder.

Figure 25: Front view of smartphone holder and human body. The shaft is capable of varying the length constituted by a large tube and small tube and fixed by the wing bolt and top of shaft is attached to the smartphone holder. The angle between shaft and smartphone holder is created by wing bolts. The attached frame is lean against the hip of user and fixed into user’s waistband by means of hook on the inside of the frame. The smartphone holder is type that holds 3 edges of smartphone with 2 sine-shaped springs on the back.

Figure 26: Front view of smartphone holder and human body shown in Figure 25 which is being hooked into user’s waistband.

Figure 27: Front view of smartphone holder and human body. The shaft is capable of varying the lengthconstituted by a large tube and small tube and fixed by the wing bolt and top of shaft is attached to the smartphone holder. The angle between shaft and smartphone holder is created by wing bolts. The attached frame is lean against the lower abdomen of the human body and fixed into user’s waistband by means of hook on the inside of the frame. The smartphone holder is type that holds 1 edge of smartphone with toothed- bottom groove to hold 2 sides of the smartphone. The cross section shape of groove 1 in the between teeth is similar to letter C (or J or S symmetrical to each other) and the bottom end of this C-shape (or J or S symmetrical to each other) is connected to 2 ends of transverse I-shaped groove bottom and the smartphone holder keeps the smartphone horizontally.

Figure 28: Side view of rectangular holder and human body which has U-shaped shaft to maintain the distance between human body and smartphone. One end of shaft is connected to human body and the other end is connected to smartphone holder. The smartphone holder is type holding 3 edge of smartphone by means of two sine-shaped springs. The inside of frame is covered with polyurethane elastic foam to create softness for the skin where the frame is applied. The part used to secure the attached frame and human body has a closed ring fallen into neck at the top of the frame lean against the human body and 2 elastic straps with two hooks at the ends on the same side where the frame attached to human body so that 2 ends can be hooked into user’s waistband.

Figure 29: Inside of smartphone holder and human body shown in Figure 29 where wires are fitted in the grooves of the polyurethane foam layer. Figure 30: Front view of smartphone holder and human body shown in Figure 28 and 29 in which the part used to secure the attached frame and human body has shoulder strap and 2 elastic straps hooked into user’s waistband.

Figure 31 : Front view of rectangular holder and human body which has U-shaped shaft to maintain the distance between human body and smartphone. One end of shaft is connected to human body and the other end is connected to smartphone holder. The smartphone holder is type holding 3 edges of smartphone by means of two sine-shaped springs. The inside of frame is covered with polyurethane elastic foam to create softness for the skin where the frame is applied. The part used to secure the attached frame and human body has a closed ring fallen into neck at the top of the frame lean against the human body and 2 elastic straps with two hooks at the ends on the same side where the frame attached to human body so that 2 ends can be hooked together on the back of user.

Figure 32: Front view of smartphone holder and human body shown in Figure 31, in which the part to secure the attached frame and human body includes shoulder strap and 2 elastic straps hooked together on the back of user.

Figure 33: Side view of smartphone holder and human body similar to that shown in Figure 28, but the smartphone holder has parts to secure fixed frame and human body equipped with straps on the top of the device and the outside of the straps are hooked to the collar button of user’s shirt.

Figure 34: Side view of annular flat plate of hinge joint of shaft to create distance between human body, smartphone and smartphone holder. This plate includes toothed surface and is connected to distance shaft between human body and smartphone.

Figure 35: Side view of components of hinge joint of distance shaft of human body and smartphone holder including head screw, 2 annular flat plates connected to shaft and smartphone holder, respectively and two toothed surfaces of flat plate turned toward each other, torsion springs, wing bolt. Figure 36: Side view of smartphone holder and human body similar to that shown in Figure 28, however, part used to secure frame attached to human body and human body has a piece of magnet attached to the frame against the human body and a magnetic metal plate attached to the inside of user’s shirt.

Figure 37: Front view of smartphone holder and human body similar to that shown in Figure 28, however, part used to secure frame attached to human body and human body has inverted J- shaped layer so that one surface of strap fallen across shoulder and back of user also has inverted J-shaped layer.

Figure 38: Inverted J-shaped layer on the end of strap shown in Figure 37.

Figure 39: Part of the strap shown in Figure 37 falling behind the user’s back.

Figure 40: Side view of smartphone holder and human body in which the parts used to secure frame attached to human body and human body consists of two lower straps that can be pulled in and out by means of two coil tubes with leaf springs on the inside located on the frame attached to human body. The user is carrying the smartphone holder with him by shoulder strap and two lower straps hooked on user’s waistband.

Figure 41 : Enlarged side view of smartphone holder and human body shown in Figure 40.

Figure 42: Front view of smartphone holder and human body shown in Figure 40 to 42.

Figure 43: Side view of smartphone holder and human body shown in Figure 40 to 42 and the user is carrying the smartphone holder with him by part used to fix the frame and human body including shoulder strap and two lower straps are hooked together on the back of the user.

Figure 44: Front view of smartphone holder and human body similar to that shown in Figure 28, however, the parts used to secure attached frame and human body has metal magnetic layer. The user is carrying the smartphone holder with him by back strap and each end of strap includes a permanent magnet plate. Figure 45: Illustration of one end of strap shown in Figure 44 includes a permanent magnet plate.

Figure 46: Front view of smartphone holder and human body similar to that shown in Figure 28. The part used to secure frame attached to human body and human body has inverted J-shaped layer and the strap also includes inverted J-shaped layer and the shoulder strap has profile that fits the shoulders of the user and is made of hard materials like hard plastic.

Figure 47: Side view of smartphone holder and human body shown in Figure 46 while the user is carrying the smartphone holder with him by part fixed the frame and human body with 2 curved bars to wear the groove on the user's shoulders.

Figure 48: Front view of smartphone holder and human body similar to that shown in Figure 28, however, the part used to secure frame attached to human body and human body has inverted J- shaped layer so that each of strap also includes inverted J-shaped layer to paste on the inverted J- shaped layer on the outer surface of frame attached to human body. The user is carrying the smartphone holder with him by a strap with one end clamped on the button near the collar and the other end attached to the outer surface of the frame and another strap fallen across the back of the user providing that 2 straps are attached to frame attached to human body.

Figure 49: Illustration of strap end with inverted J-shaped layer to paste on the inverted J-shaped layer on the outer surface of frame attached to human body as shown in Figure 48.

Figure 50: Side view of smartphone holder and human body, in which the ring frame attached to human body has a wide surface and applies to biceps of user. The inner haft ring of frame is made from hard and elastic material. The part used to fix frame and human body is constituted by open ring made from soft material whose two opposite sides have inverted J-shaped layer to press them together. The shaft to create distance between frame attached to human body and smartphone is made from copper tube capable of bending and fixed after bending.

Figure 51 : Top view of frame attached to human body and part fixing the frame into human body and a section of shaft to create a distance between the frame and the smartphone in Figure 50. Figure 52: Front view of smartphone holder and human body show in Figure 50 while the user is carrying the smartphone holder with him.

Figure 53: Top view of half of frame connecting structure which is attached to the human body in Figure 50. This structure includes a shaft and 2 holes on the left and right to insert wing bolt and connect the shaft and smartphone holder, respectively.

Figure 54: Rear view of 3-side smartphone holder with 2 zigzag springs formed by zigzag shaped bars with small thickness. The height of springs is low and each of spring is connected back case of smartphone holder and back of groove holding the side of smartphone, and half the structure connecting smartphone holder to external device is attached to back case. The groove holding the smartphone is shaped like letter C to keep many kinds of smartphones with different thicknesses.

Figure 55: Side view of 3-side smartphone holder shown in Figure 54 in which half the structure connecting smartphone holder to external device is attached to back case and groove holding the smartphone is shaped like letter C.

Figure 56: Top view of 3-side smartphone holder shown in Figure 54 to 55 in which half the structure connecting smartphone holder to external device is attached to back case.

Figure 57: Bottom view of 3-side smartphone holder shown in Figure 54 to 56 in which half the structure connecting smartphone holder to external device is attached to back case.

Figure 58: Front view of 3-side smartphone holder shown in Figure 54 to 57. The groove holding the smartphone is shaped like letter C.

Figure 59: Top view of 3-side smartphone holder similar to Figure 54 to 58. The groove has V- shaped bottom connected to reserved L-shaped and L-shaped bar whose lower edges turned toward each other. This type of smartphone holder has large elastic amplitude so as to hold smartphones of different thicknesses and keep the smartphone using back case better. Figure 60: Top view of 3-side smartphone holder similar to Figure 54 to 58. The groove has W- shaped bottom connected to reserved L-shaped and L-shaped bar whose lower edges turned toward each other. This type of smartphone holder has large elastic amplitude so as to hold smartphones of different thicknesses and keep the smartphone using back case better.

Figure 61 : Side view of smartphone side case or back case or holder holding perimeter of the smartphone whose side and edge grooves are included groove sections in which sections of 2 opposite sides are parallel and connected alternatively and groove bottom formed by springs connecting 2 opposite sides. The spring is formed by connection of short end of letter J with curved lines and short end of letter reversed J with curved lines while 2 length one of these two letter J are connected to two opposite side of groove holding the smartphone.

Figure 62: Rear view of smartphone side case or back case or holder holding perimeter of the smartphone in Figure 61 in which the side or edge groove is included groove sections and bottom of groove formed by springs connecting 2 opposite sides.

Figure 63: Cross section of a section of component side groove of side case or back case or smartphone holder which holds the perimeter of the smartphone shown in Figure 61 to 62, with two parallel sides and a surface made up of springs which has curved shape similar to edge of smartphone.

Figure 64: Rear view of side groove of smartphone back case or side case or smartphone holder. The groove can be the type that holds the side, bottom or top edge of the smartphone and is constituted by 2 two sides with parallel surfaces and bottom side grooves made up of 2 V-shaped springs in which tip of the V letter facing each other and two ends of each letter V are connected to two opposite sides. This type of bottom keeps groove firmly and is suitable for a variety of smart phones with different thicknesses.

Figure 65: Side view of side groove of smartphone back case or side case or smartphone holder mentioned in Figure 64 with the plane is made up of springs which has curved shape similar to edge of smartphone. Figure 66: Cross section of side groove of smartphone back case or side case or smartphone holder mentioned in Figure 64 and 65 with the plane is made of springs which has curved shape similar to edge of smartphone.

Figure 67: Side view of 3-side smartphone holder similar to those mentioned in Figure 54. However, this type of holder has bottom side grooves made up of 2 V-shaped springs in which tip of the V letter facing each other and two ends of each letter V are connected to two opposite sides as Figures 64 to 66 and the smartphone is inserted into the holder.

Figure 68: Rear view of side groove of smartphone back case or side case or smartphone holder. The groove can be the type that holds the side, bottom or top edge of the smartphone and is constituted by 2 two sides with parallel surfaces and the bottom formed by two reversed S- shaped springs in which two ends of each letter S are connected to two opposite sides. This type of bottom keeps groove firmly and is suitable for a variety of smart phones with different thicknesses.

Figure 69: Rear view of side groove of smartphone back case or side case or smartphone holder. The groove can be the type that holds the side, bottom or top edge of the smartphone and is constituted by 2 two sides with parallel surfaces and the bottom formed by two springs in the shape of reserved W and W letter in which two ends of each letter W are connected to two opposite sides. This type of bottom keeps groove firmly and is suitable for a variety of smart phones with different thicknesses.

Figure 70: Rear view of side groove of smartphone back case or side case or smartphone holder. The groove can be the type that holds the side, bottom or top edge of the smartphone and is constituted by 2 two sides with parallel surfaces and the bottom formed by small I-shaped springs in which two ends of each letter I are connected to two opposite sides. This type of bottom keeps groove firmly and is suitable for a variety of smart phones with different thicknesses. Figure 71 : Rear view of side groove of smartphone back case or side case or smartphone holder. The groove can be the type that holds the side, bottom or top edge of the smartphone and is constituted by 2 two sides with parallel surfaces and the bottom formed by small C-shaped springs in which two ends of each letter C are connected to two opposite sides. This type of bottom keeps groove firmly and is suitable for a variety of smart phones with different thicknesses.

Figure 72: Rear view of side groove of smartphone back case or side case or smartphone holder. The groove can be the type that holds the side, bottom or top edge of the smartphone and is constituted by 2 two sides with parallel surfaces and the bottom formed by small V-shaped springs in which two ends of each letter V are connected to two opposite sides. This type of bottom keeps groove firmly and is suitable for a variety of smart phones with different thicknesses.

Figure 73: Rear view of side groove of smartphone back case or side case or smartphone holder. The groove can be the type that holds the side, bottom or top edge of the smartphone and is constituted by 2 two sides with parallel surfaces and groove bottom with zigzag springs thanks to the openings at the bottom which are staggered together and extended from one edge to the other edge of the groove bottom and had circular hole at each end so as to prevent spring against tears when pulled out. This type of bottom keeps groove firmly and is suitable for a variety of smart phones with different thicknesses.

Figure 74: Cross section of side groove of smartphone holder or smartphone back case or smartphone side case. The groove can be the type that holds the side, bottom or top edge of the smartphone and its cross section shape is similar to letter U and its back has a straight bar extends throughout the groove.

Figure 75: Cross section of side groove of smartphone holder or smartphone back case or smartphone side case. The groove can be the type that holds the side, bottom or top edge of the smartphone and its cross section shape is similar to letter C and its back has a straight bar extends throughout the groove. Figure 76: Back and left perspective view of seamless groove whose cross section forms the letter C and back of groove has a straight bar extends throughout the groove.

Figure 77: Back and left perspective view of groove forming the C-shaped cross section and having slots perpendicular to the long side to form toothed groove and back of groove has a straight bar extends throughout the groove.

Figure 78: Back and left perspective view of C-shaped groove and toothed groove, and the outside of a branch of C letter has a straight bar extends throughout the groove.

Figure 80: Cross section of groove holding the smartphone of smartphone holder, back case or side case. The groove can be the type that holds the side, bottom or top edge of the smartphone and its cross-section shape is similar to a pair of flattened vertically C-shaped providing that the ends of“C” are oriented towards each other and the lower two ends of the letter C are connected to 2 ends of reversed U. The inside bottom of the inverted U is connected to the straight bar extending throughout the length of the groove.

Figure 81 : Cross section of groove holding the smartphone of smartphone holder, back case or side case. The groove can be the type that holds the side, bottom or top edge of the smartphone and its cross-section shape like a pair of vertical S including one direct S and one reciprocal S providing that the ends of S are connected to 2 ends of reversed U. The inside bottom of the inverted U is connected to the straight bar extending throughout the length of the groove.

Figure 82: Cross section of groove holding the smartphone of smartphone holder, back case or side case. The groove can be the type that holds the side, bottom or top edge of the smartphone and its cross-section shape like a pair of horizontal S including one direct S and onereciprocal S providing that the ends of S are connected to 2 ends of reversed U. The inside bottom of the inverted U is connected to the straight bar extending throughout the length of the groove.

Figure 83: Rear view of 3-side smartphone holder similar to those shown in Figure 63, however, the lower groove is low and 2 side grooves are short (refer Figures 84 to 87) and 2 broad zigzag springs located on the location connecting the lower of groove holding the bottom of smartphone and the lower of grooves holding the sides of smartphone.

Figure 84: Side view of 3-side smartphone holder shown in Figure 83.

Figure 85: Top view of 3-side smartphone holder shown in Figures 83 and 84.

Figure 86: Bottom view of 3-side smartphone holder shown in Figures 83 to 85.

Figure 87: Front view of 3-side smartphone holder shown in Figures 83 to 86.

Figure 88: Rear view of 3-side smartphone holder similar to those shown in Figure 63, however, a half of mechanism connecting smartphone holder to external devices has annular plate perpendicular to the underside of side groove and includes teeth on a surface and the connecting shaft also has teeth on a surface. Two toothed-surface of these two annular plates are adhered together by means of wing springs with elastic spring ring at stopper.

Figure 89: Top view of 3-side smartphone holder shown in Figure 88.

Figure 90: Bottom view of 3-side smartphone holder shown in Figures 88 and 89.

Figure 91 : Rear view of 3-side smartphone holder similar to those shown in Figure 63, however, a half of mechanism connecting smartphone holder to external devices has open cylinder- shaped groove with a hemispherical end. This opening hole is located on the underside of bottom groove (see Figure 92 to Figure 93). The end of shaft connecting to external device has prickly sphere or many holes in the surface and the sphere is inserted into the opening groove until end of the groove and fixed by wing bolt while the teeth of bolt are located on the back of bottom grove.

Figure 92: Top view of 3-side smartphone holder shown in Figure 91.

Figure 93: Bottom view of 3-side smartphone holder shown in Figures 91 and 92. Figure 94: Rear view of 3-side smartphone holder similar to those shown in Figure 63, however, a half of mechanism connecting smartphone holder to external devices has a piece of copper pipe connected to the external terminal of the device.

Figure 95: Top view of 3-side smartphone holder shown in Figure 94.

Figure 96: Bottom view of 3-side smartphone holder shown in Figures 94 and 95.

Figure 97: Rear view of 3-side smartphone holder similar to those shown in Figure 63, however, a half of mechanism connecting smartphone holder to external devices has a magnetic metal plate attached to angle formed by the back and lower side of bottom groove. The center of the tube is parallel to the edge formed by the angle between back and lower side of bottom groove. End of shaft connecting to external devices has curved magnet whose curvature is equal to the curvature of the outer surface of the magnetic tube (see Figures 98 to 99). The curved magnet is lean against the surface of the magnetic metal tube to enable the creation of angle between the shaft connecting external device and smartphone holder at the discretion of the user.

Figure 98: Top view of 3-side smartphone holder shown in Figure 97.

Figure 99: Bottom view of 3-side smartphone holder shown in Figures 97 and 98.

Figure 100: Rear view of 3-side smartphone holder similar to those shown in Figure 63, however, a half of mechanism connecting smartphone holder to external devices has cylindrical-shaped hole and its end is located on one side of the trough holding the lower edge of smartphone (see figure 100). The shaft connecting to external device is constituted by two cylindrical-shaped axles made by magnet and connected perpendicularly. Underneath the bottom shaft is end of shaft connecting to external device. At the top of this tube includes cylindrical hole with its head located at the top and its diameter approximates the diameter of the lower shaft.

Figure 101 : Side view of one-side smartphone holder shown in Figure 100. Figure 102: Side view of one-side smartphone holder whose its cross section forms 2 letters C providing that end of C is directed towards each other and these two letters C are connected with each other in the lower end. The slot formed by the connection of 2 lower end of C has shaft to connect to the external device.

Figure 103: Front view of one-side smartphone holder. The front of groove holding the lower edge of smartphone shaped like the letter U and the front of groove holding the lower edge of smartphone holder create two half clamps of 2 clamps of smartphone holder and back of this one-side smartphone holder is back support of this smartphone holder.

Figure 104: Rear view of one-side smartphone holder shown in Figures 102 and 103.

Figure 105: Front view of one-side smartphone holder shown in Figures 102 to 104 and the holder is being inserted the cellular phone vertically.

Figure 106: Front view of one-side smartphone holder similar to type shown in Figure 102, however, the halves of front clamp are shaped like curved bowstring truss to increase resilience.

Figure 107: Front view of one-side smartphone holder shown in Figure 106 and the holder is being inserted the cellular phone vertically.

Figure 108: Side view of one-side smartphone holder. The groove holding lower edge of smartphone has cross section shape is similar to the letters connected together and its front wall is reversed L-shaped provided that the lower end of this letter L is connected to horizontal I- shaped groove bottom and the other end is connected to the back wall of U-shaped groove. The upper end of letter U is connected to the lower end of vertical I-shaped back case. The inside of each side wall of groove is covered with a polyurethane foam layer.

Figure 109: Side view of one-side smartphone holder. The groove holding lower edge of smartphone has cross section shape is similar to the letters connected together and its front wall is reversed J-shaped provided that the lower end of this letter J is connected to horizontal I- shaped groove bottom and the other end of groove bottom is connected to the lower end of C- shaped back wall of groove in which the upper end of letter C is connected to the vertical I- shaped back case.

Figure 110: Side view of one-side smartphone holder. The groove holding lower edge of smartphone has cross section shape is similar to the letters connected together and its front wall is horizontally flattened C-shaped provided that the lower end of this letter C is connected to horizontal I-shaped groove bottom and the other end of letter I is connected to the back wall of U-shaped groove in which the upper end of letter U is connected to the vertical I-shaped back case.

Figure 111 : Side view of one-side smartphone holder. The groove holding lower edge of smartphone has cross section shape is similar to the letters connected together and its front wall is horizontally flattened C-shaped provided that the lower end of this letter C is connected to horizontal I-shaped groove bottom and the other end of letter I is connected to the back wall of onward and flat C-shaped groove in which the upper end of letter C is connected to the vertical I- shaped back case.

Figure 112: Side view of one-side smartphone holder with U-shaped bottom groove. The two wall of groove has 2 Omega-shaped elastic bars provided that 2 ends of letter Omega is directed towards each other and the lower end of each letter Omega is connected to the upper end of letter U. The upper end of left wall of groove has an elastic silicone tube to prevent the smartphone screen against scratches and increase adhesion to the screen. The underside of groove bottom has a half-hooked structure to connect the external device which is a spiral worm. This type of groove keeps the smartphone firmly and is suitable for a variety of smart phones with different thicknesses.

Figure 113: Side view of one-side smartphone holder shown in Figure 112, in which 2 elastic bars is symmetrically located at 2 ends of bottom groove.

Figure 114: Cross section of elastic silicone tube covering the top left of the elastic bar on the front of the smartphone holder in Figure 113. The cross section of elastic silicone tube is shaped like rectangular and one outer edge has T-shaped branch. Figure 115: Rear view of two-side smartphone holder with spring is composed of many lozenge shaped frames with small edge thickness and every two ends of the two adjacent obtuse angles are connected together. The spring is connected to 2 back cases of grooves holding the upper and bottom edge of smartphone in which the upper groove has a hole so that the rear camera and sensor of the smartphone are not obscured. The underside of groove bottom has a half-hooked structure to connect the external device. This type of spring keeps the smartphone are suitable for a variety of smart phones with different thicknesses and secure the smartphone vertically and horizontally.

Figure 116: Rear view of two-side smartphone holder in which 2 grooves holding 2 sides of smartphone has shape of right angle frame formed by connection between a section of side groove and a section of bottom groove. The sine-shaped spring is connected to 2 back walls of 2 side grooves and a half of mechanism connecting to external device is attached to the underside of the bottom groove.

Figure 117: Rear view of three-side smartphone holder shown in Figure 116 in which the holder is keeping the smartphone vertically.

Figure 118: Rear view of four-side smartphone back case (or side case) which is a seamless piece and made from hard plastic. Four grooves holding 4 edges of smartphone has shape of right angle frame formed by connection between a section of side groove to a section of upper groove or bottom groove. The back walls of two adjacent right-angle frames are connected by a round shaped spring (or elastic frame) provided that the plane created by round-shaped spring is parallel to the plane formed by the back wall of the right-angle frame. At the bottom of the side groove, there is a gap to allow buttons on the side edge to be exposed outwardly. This type of four-side smartphone back case is lightweight and suitable to many kinds of smartphone of all dimensions.

Figure 119: Rear view of smartphone holder constituted by four-side smartphone back case shown in Figure 118 in which a half of coupler connecting to external device is attached to underside of bottom groove. This type of smartphone holder is lightweight and suitable to many kinds of smartphone of all dimensions.

Figure 120: Rear view of four-side smartphone back case (or side case) which is a seamless piece and made from hard plastic. Four grooves holding 4 edges of smartphone has shape of right angle frame formed by connection between a section of side groove to a section of upper groove or bottom groove. The back walls of two adjacent right-angle frames are connected by a spring (or elastic frame) which has shape like circumference of the longitudinal section of the peanut provided that the plane created by spring is parallel to the plane formed by the back wall of the right-angle frame. This type of smartphone holder is lightweight and suitable to many kinds of smartphone of all dimensions.

Figure 121 : Rear view of smartphone holder constituted by four-side smartphone back case shown in Figure 120 which a half of coupler connecting to external device is attached to underside of bottom groove to constitute the smartphone holder likely to connect to external device. This type of smartphone holder is lightweight and suitable to many kinds of smartphone of all dimensions.

Figure 122: Rear view of four-side smartphone back case (or side case) which is a seamless piece and made from hard plastic. Four grooves holding 4 edges of smartphone has shape of right angle frame formed by connection between a section of side groove to a section of upper groove or bottom groove. The back walls of two adjacent right-angle frames are connected by a spring (or elastic frame) form of a heart-shaped circumference provided that the plane created by spring is parallel to the plane formed by the back wall of the right-angle frame. This type of smartphone holder is lightweight and suitable to many kinds of smartphone of all dimensions.

Figure 123: Rear view of smartphone holder constituted by four-side smartphone back case shown in Figure 122 which a half of coupler connecting to external device is attached to underside of bottom groove to constitute the smartphone holder likely to connect to external device. This type of smartphone holder is lightweight and suitable to many kinds of smartphone of all dimensions. Figure 124: Rear view of four-side smartphone back case (or side case) which is a seamless piece and made from hard plastic with 4 grooves holding 4 edges of smartphone. Back walls of grooves holding 2 adjacent edges of smartphone is connected by means of a U-shaped spring (or elastic frame) provided that the plane created by U-shaped spring is parallel to the plane formed by the back wall of the right-angle frame. This type of smartphone holder is lightweight and suitable to many kinds of smartphone of all dimensions.

Figure 125: Rear view of smartphone holder constituted by four-side smartphone back case shown in Figure 124 which a half of coupler connecting to external device is attached to underside of bottom groove to constitute the smartphone holder likely to connect to external device. This type of smartphone holder is lightweight and suitable to many kinds of smartphone of all dimensions.

Figure 126: Rear view of four-side smartphone back case (or side case) which is a seamless piece and made from hard plastic with 4 grooves holding 4 edges of smartphone. Back walls of grooves holding 2 adjacent edges of smartphone is connected by means of a M-shaped spring (or elastic frame) provided that the plane created by M-shaped spring is parallel to the plane formed by the back wall of the right-angle frame. This type of smartphone holder is lightweight and suitable to many kinds of smartphone of all dimensions.

Figure 127: Rear view of smartphone holder constituted by four-side smartphone back case shown in Figure 126 which a half of coupler connecting to external device is attached to underside of bottom groove to constitute the smartphone holder likely to connect to external device. This type of smartphone holder is lightweight and suitable to many kinds of smartphone of all dimensions.

Figure 128: Rear view of four-side smartphone back case (or side case) which is a seamless piece and made from hard plastic with 4 grooves holding 4 edges of smartphone. Back walls of grooves holding 2 adjacent edges of smartphone is connected by means of a Omega-shaped spring (or elastic frame) provided that the plane created by Omega-shaped spring is parallel to the plane formed by the back wall of the right-angle frame. This type of smartphone holder is lightweight and suitable to many kinds of smartphone of all dimensions. Figure 129: Rear view of smartphone holder constituted by four-side smartphone back case shown in Figure 128 which a half of coupler connecting to external device is attached to underside of bottom groove to constitute the smartphone holder likely to connect to external device. This type of smartphone holder is lightweight and suitable to many kinds of smartphone of all dimensions.

Figure 130: Rear view of four-side smartphone back case (or side case) which is a seamless piece and made from hard plastic with 4 grooves holding 4 edges of smartphone. Back walls of grooves holding 2 adjacent edges of smartphone is connected by means of heart-shaped spring provided that the plane created by spring is parallel to the plane formed by the back wall of the right-angle frame. This type of smartphone holder is lightweight and suitable to many kinds of smartphone of all dimensions.

Figure 131 : Rear view of smartphone holder constituted by four-side smartphone back case shown in Figure 130 which a half of coupler connecting to external device is attached to underside of bottom groove to constitute the smartphone holder likely to connect to external device. This type of smartphone holder is lightweight and suitable to many kinds of smartphone of all dimensions.

Figure 132: Rear view of four-side smartphone back case (or side case) which is a seamless piece and made from hard plastic with 4 grooves holding 4 edges of smartphone similar to that shown in Figure 130, however, it is added further annular spring which is created by the connection of reversed and onward letter Omega. This annular has 4 contactors connecting to 4 points in heart icons at four corners providing that the plane formed by this annular is parallel to the plane made up of four heart icons in the four corners. This type of smartphone holder is lightweight and suitable to many kinds of smartphone of all dimensions.

Figure 133: Rear view of smartphone holder constituted by four-side smartphone back case shown in Figure 132 which a half of coupler connecting to external device is attached to underside of bottom groove to constitute the smartphone holder likely to connect to external device. This type of smartphone holder is lightweight and suitable to many kinds of smartphone of all dimensions.

Figure 134: Rear view of four-side smartphone back case (or side case) which is a seamless piece and made from hard plastic with 4 grooves holding 4 edges of smartphone whose center has a rectangular plate. Back walls of grooves holding 2 adjacent edges of smartphone is connected to ends of back case by means of V-shaped spring provided that the plane created by spring is parallel to either the plane formed by the back wall of the right-angle frame or plane of back case. This type of smartphone holder is lightweight and suitable to many kinds of smartphone of all dimensions.

Figure 135: Rear view of smartphone holder constituted by four-side smartphone back case shown in Figure 134 which a half of coupler connecting to external device is attached to underside of bottom groove to constitute the smartphone holder likely to connect to external device. This type of smartphone holder is lightweight and suitable to many kinds of smartphone of all dimensions.

Figure 136: Rear view of four-side smartphone back case (or side case) which is a seamless piece and made from hard plastic with 4 grooves holding 4 edges of smartphone whose center has a rectangular plate. Back walls of grooves holding upper edge odd smartphone and 2 grooves holding the side edges of smartphone are connected to ends of back case by means of V-shaped spring (elastic frame) provided that the plane created by V-shaped spring is parallel to either the plane formed by the back wall or plane of back case. This type of smartphone holder is lightweight and suitable to many kinds of smartphone of all dimensions.

Figure 137: Rear view of smartphone holder constituted by four-side smartphone back case shown in Figure 136 which a half of coupler connecting to external device is attached to underside of bottom groove to constitute the smartphone holder likely to connect to external device. This type of smartphone holder is lightweight and suitable to many kinds of smartphone of all dimensions. Figure 138: Rear view of four-side smartphone back case (or side case) which is a seamless piece and made from hard plastic with 4 grooves holding 4 edges of smartphone whose center has a rectangular plate. Back walls of grooves holding the side edges of smartphone is connected to side of back case by means of spring with shape of tilted I provided that the plane created by tilted I -shaped spring is parallel to either the plane formed by the back wall or plane of back case. This type of smartphone holder is lightweight and suitable to many kinds of smartphone of all dimensions.

Figure 139: Rear view of smartphone holder constituted by four-side smartphone back case shown in Figure 138 which a half of coupler connecting to external device is attached to underside of bottom groove to constitute the smartphone holder likely to connect to external device. This type of smartphone holder is lightweight and suitable to many kinds of smartphone of all dimensions.

Figure 140: Rear view of four-side smartphone back case (or side case) which is a seamless piece and made from hard plastic with 4 grooves holding 4 edges of smartphone whose center has a rectangular plate. Back walls of grooves holding the side edges of smartphone is connected to side of back case by means of S-shaped spring provided that the plane created by S-shaped spring is parallel to either the plane formed by the back wall or plane of back case. This type of smartphone holder is lightweight and suitable to many kinds of smartphone of all dimensions.

Figure 141 : Rear view of smartphone holder constituted by four-side smartphone back case shown in Figure 140 which a half of coupler connecting to external device is attached to underside of bottom groove to constitute the smartphone holder likely to connect to external device. This type of smartphone holder is lightweight and suitable to many kinds of smartphone of all dimensions.

Figure 142: Front view of smartphone holder holding the side and lower edge of smartphone whose front view when two side grooves are connected to the bottom groove has shape of axial section of hourglass circumference with open mouth and concave bottom. In the front, there are two front walls of the bottom groove to clamp to the front of the smartphone. The underside of the groove holding the lower edge of smartphone is connected to a bar on part creating angle for smartphone holder and the other bar is connected to external device which has twisted holes to fix the wing bolt. These two bars are placed against each other and fixed by wing bolt that have been screwed into twisted holes of bar connecting to bottom groove and the smartphone holder is being inserted with cellular phone.

Figure 143: Side view of two-side smartphone holder shown in Figure 142 whose side view when two side grooves are connected to the bottom groove has shape of two parallel side walls. There are V-shaped elastic spring connected to 2 side walls to secure and create the bottom of side groove which help to change the width of groove lip to make the holder suitable for a variety of smart phones with different thicknesses. It is similar to the groove holding the lower edge of smartphone. The underside of bottom groove is a bar connecting to the external device which has twisted holes to fix the wing bolt. These two bars are placed against each other and fixed by wing bolt that have been screwed into twisted holes of bar connecting to bottom groove and the smartphone holder is being inserted with cellular phone.

Figure 144: Bottom view of two-side smartphone holder shown in Figures 142 to 1484 whose bottom groove has 2 bars on the front side wall to clamp to the front of the smartphone. The underside of the groove holding the lower edge of smartphone is constituted by 2 V-shaped elastic bars connecting to the front and back wall of bottom groove which help to change the width of groove lip to make the holder suitable for a variety of smart phones with different thicknesses and the smartphone holder is being inserted with cellular phone.

Figure 145: Top view of two-side smartphone holder shown in Figures 142 to 145 in which two bottoms of 2 grooves holding the side edge of smartphone are formed by V-shaped elastic bars connecting to the front and back wall of side groove which help to change the width of groove lip to make the holder suitable for a variety of smart phones with different thicknesses and the smartphone holder is being inserted with cellular phone.

Figure 146: Rear view of two-side smartphone holder shown in Figures 142 to 145 in which the back wall of bottom groove is connected to back case of smartphone and the smartphone holder is being inserted with cellular phone. Figure 147: Front view of selfie stick and the smartphone holder securing 2 side edges and lower edge of smartphone shown in Figures 142 to 146. The distance between user body and smartphone is created by a multi-layer tube which has a gradual increase in diameter and ability to protrude and indent. The tube is folded and laid over small groove on the front of the smartphone holder and the smartphone holder is not being inserted with cellular phone. This type of selfie stick has a simple smartphone holder that is easy to produce and suitable for holding the smartphone vertically and neatly folded, and the smartphone is easy to be inserted to the holder.

Detailed description of the invention

1- The 3 -side smartphone holder which may concurrently serve as the smart phone case with 2 zigzag springs connecting the back case of the holder to 2 side walls of 2 grooves holding sides of smartphone. The side grooves are capable of changing their width (see Figures 1 to 6 and Figures 8 to 10):

This smartphone holder includes groove holding the lower edge 1 of smartphone 1 (hereinafter referred as bottom groove) whose cross section forms the letter U, J, C or Omega or the bottom groove 1 has a component constituted by bottom groove lc, front side wall la and back side wall lb in which the bottom lc is two V-shaped springs connecting the wall la and wall lb. The side groove 3 is similar to bottom groove 1. The bottom groove may not have groove shape but form of bottom bar; the back case 2 of smartphone holder (hereinafter called back case) is attached to the side wall lb of the bottom groove 1 to hold the back of smartphone and perpendicular to the bottom groove 1. The folded elastic spring 4 (referred to as folded spring) connects two side grooves 3 and back case 2. The underside of bottom groove has a half of mechanism 5 connecting smartphone holder and external devices (referred to as a half coupler connecting to external device). The coupler 5 has shape of longitudinal frame attached to back wall lb of bottom groove 1 and circular holes 5 c to insert the ribbed shaft at the end of shaft 5d. The frame 5a has toothed hole so that the wing bolt 15 can be tightened to maintain the angle between frame of external device 5b and back case 2 of smartphone holder.

If you need to place the smartphone 6 into the holder, just pushing smartphones 6 vertically into the middle of side groove 3 until the lower edge of smartphone reaches the trough of bottom groove 1. This type of smartphone holder is suitable for a variety of smart phones with different dimensions and facilitates keeping smartphones vertically by easily placing the smartphone in holder and the smartphone is held firmly. In addition, the smartphone holder cum back case also have round hole at each corner of the zigzag-shaped spring to prevent spring against tear of corners (see figure 5).

The smartphone holder cum back case may have more side grooves in spring 4 to increase the amplitude for the spring (see Figure 8).

The smartphone holder cum back case also has curved-shaped or folded-shaped line serving as spring 4 connecting between the side of side groove and side of bottom groove (see Figure l42to Figure 147).

2- Three-side smartphone holder (also served as back case) with the back spring connected between bottom groove and side groove which has shape like letter Z, U or Omega (see Figures 11 to 13):

This smartphone holder is similar to that shown in item 1 above, however, two springs 4 has shape of zigzag or letter U or Omega connecting two side grooves 3 and bottom groove 1. These springs 4 are not only elastic springs but also the back support for smartphones. The underside of bottom groove has half of the structure connected to external device 5 which is drawn symbolically (as there are many forms of half-structure connected to different type of external device can be attached to the smartphone holder). This smartphone holder helps keep the smartphone neatly and is simple and easy to produce.

3- Three-side smartphone holder (also served as back case) consisting of 2 lozenge-shaped springs adhered to each other at obtuse angles (see Figure 14):

This smartphone holder is similar to that shown in item 1 above, however, 2 lozenge-shaped springs 4 are adhered to each other at obtuse angles and these springs connect back case 2 and side groove 3. This type of smartphone holder helps increase the traction of two side grooves 3 of smartphone and make the spring slimmer. The underside of bottom groove has half of the structure connected to external device 5 which is drawn symbolically.

4- Three-side smartphone holder (also served as back case) consisting zigzag springs connected back case and side groove (see Figure 15):

This smartphone holder is similar to that shown in item 1 above, however, it has 4 zigzag springs 4 in which every two springs 4 connects back case 2 and side groove 3. This type of smartphone holder helps increase the traction of two side grooves 3 of smartphone and make the spring slimmer. The underside of bottom groove has half of the structure connected to external device 5 which is drawn symbolically.

5- Three-side smartphone holder whose bottom of side groove is made up of two V-shaped springs connecting the two side walls of side groove and a hook to attach to waistband or belt (see Figure 31 to Figure 32):

This smartphone holder is similar to that shown in item 1 above, however, the bottom of side groove 3 and groove 1 is made up of two V-shaped springs connecting the two side walls of side groove so that the side groove is capable of adjusting the width and suitable for a variety of smart phones with different thicknesses and secures the smartphone better. V2 on the top and back of the back case 2 has a S-shaped hook 2a to clamp to waistband or belt or straps sewed on pant or shirt so that the user can insert or take out the smartphone easily than putting it on pants pocket.

6- Three-side smartphone holder whose cross-section shape of side groove like letter C (see Figure 54 to Figure 58):

This smartphone holder is similar to that shown in item 1 above, however, the bottom groove 1 is formed by the connection of groove bottom lc, front wall la and back wall lb. Thanks to C- shaped cross section, the side groove is capable of adjusting the width and suitable for a variety of smart phones with different thicknesses and secures the smartphone better. Similarly, the side groove 3 is made up by the connection of groove bottom 3c, front wall 3a and back wall 3b and has cross section shape resembling the letter C.

7- Three-side smartphone holder whose side groove has V-shaped or M-shaped bottom (see Figure 59 to Figure 60):

This smartphone holder is similar to that shown in item 1 above, however, the bottom groove 1 is formed by the connection of V-shaped or M-shaped bottom lc, L-shaped front wall la and L- shaped back wall lb so that the side groove is capable of adjusting the width and suitable for a variety of smart phones with different thicknesses and secures the smartphone better. 8- Three-side smartphone holder whose front view or rear view when two side grooves, bottom groove and springs connecting side groove and bottom groove are connected together has shape of axial section of hourglass circumference with open mouth and concave bottom (see Figure 142 to 147):

Three-side smartphone holder has C-shaped side grooves 3 when looking at the front or rear provided that hogback of letter turns toward each other. The side groove 3 is made up by the connection of front wall 3a, back wall 3b and groove bottom 3c formed by V-shaped springs 4. The upper side of the wall 3a and 3b curves outwards so that smartphone can be easily inserted into the side groove 3. The back case 3 is connected to back wall lb of bottom groove 1. Two Omega-shaped springs are connected bottom groove 1 and two side grooves 3 to form the holder with shape of axial section of hourglass circumference with open mouth and concave bottom from front or rear view. The part creating angle between the smartphone holder and external device 5 and connecting the smartphone holder and external device has the form of prismatic block with a rectangular section with toothed hold on the lateral surface. This prismatic block connects to the underside of the bottom groove and adjacent to the side of the prism is a flat bar with a hole in the flat end. The other end of flat bar connects to the multi-layered tube capable of adjusting length of the selfie stick. The wing bolt is penetrated the hole on flat bar and tightened the hole of the prism to fix the angle between the smartphone holder and selfie stick. The front side of bottom groove has side wall la and a semicircular recessed section to fold the selfie stick when not in use.

9- Three-side smartphone holder with spring connecting back case and side groove and zigzag spring under the lower edge of smartphone (Figure 83 to 87):

This smartphone holder is similar to that shown in item 1 above, however, two springs 4 connecting bottom groove 1 and 2 side grooves 3 are located under smartphone when it is inserted into the holder. The surface of these springs 4 is concaved to hold the lower edge of smartphone when it is inserted into the holder and the part connected to the external device 5 is attached to the underside of bottom groove. This smartphone holder limits the coverage of 2 side edges of smartphone and is compact enough to put into bag even while holding the smartphone.

10- Three-side smartphone holder with speakers on the back (see Figure 23): This smartphone holder is similar to that shown in item 1 above, however, it has external speaker 10 attached to the back case. The speaker 10 has an electrical conductor 9 that leads to the connector 8 located on the bottom of bottom groove 1 so that the connector 8 can be plugged into the speaker connector on the smartphone.

11- Three-side smartphone holder with reserve battery holder on the back (see Figure 24):

This smartphone holder is similar to that shown in item 1 above, however, it has reserve battery holder 11 attached to the back case to hold the reserve battery 14. The reserve battery has exposed metal pieces 13 to contact with the connector 9a and electric current from the battery is transferred through wire 9 to connector 8 on the bottom 1 c of bottom groove 1.

12- Two-side smartphone holder with lozenge-shaped springs connecting bottom groove of the holder:

Two-side smartphone holder has spring 4c in the form of sequential lozenge frame connecting bottom groove 1 and top groove 7 and side wall is connected back case 2 which has oval hole 7c so that camera and its sensor can be exposed. The underside of bottom groove 1 is connected with coupler or a haft of structure connected to external device which is drawn symbolically.

13- Two-side smartphone holder with springs connected between the top and bottom groove is type a combination of successive curves or successive poly-lines:

The smartphone holder shown in Item 12, but the spring 4 is combination of successive curves or successive poly-lines.

14- Smartphone holder with bottom groove have resilience thanks to combination of curve shaped cross section (Figures 20 and 21):

This holder includes bottom groove 1 and part connecting to external device 5 or a haft of mechanism connecting to external device 5 is connected to the underside of groove 1. The bottom groove is formed by the connection of bottom lc and front wall lc and back wall lc. The S-shaped front wall 4g of the groove and the section directed towards smartphone is covered with silicon tube. At the top of front wall has silicon cap 4k and curved section 4g of spring allows the spring 4 to be resilient to press 2 curved section of spring onto the sides of the smartphone. The silicon tube has a rectangular cross section with a T-branch on one side. The bottom of groove holding the bottom edge of smartphone is straight and has two flanges to block the front and back of the smartphone to prevent the phone against falling backwards or forwards after being inserted into the holder. This smartphone holder is compact and easy to insert or remove smartphone from the holder. And the underside of the bottom lc is attached to coupler of external device 5 or half of the structure of the external device 5 with shape of toothed shaft.

15- Smartphone holder with bottom groove have resilience thanks to combination of curve shaped cross section (Figures 102 to 105):

This holder includes bottom groove 1 and part connecting to external device 5 or a haft of mechanism connecting to external device 5 is connected to the underside of groove 1. The bottom groove is formed by the connection of reserve I-shaped bottom lc and C-shaped front wall la and C-shaped back wall lb to keep the w-shaped bottom groove. The walls la and lb also serve as elastic spring 4g to press the top end of wall la and lb against the front surface and back surface of the smartphone 6 when being inserted into the holder. The top of the back wall lb is connected to the back case. This smartphone holder is compact and easy to insert or remove smartphone from the holder as well as external devices including speaker, reserve battery holder or remote control of electrical household appliances. The underside of the bottom lc is attached to coupler of external device 5 or half of the structure connecting to the external device 5.

16- Smartphone holder with bottom groove have resilience thanks to combination of curve shaped cross section (Figures 106 and 107):

This smartphone holder is similar to that shown in item 15 above, however, its groove 1 has toothed-shape front wall la served as wall to clamp to the surface of smartphone 6 and also the spring 4g for better elasticity to help press the smartphone 6 into the groove more easily. The underside of the bottom lc is attached to coupler of external device 5 or half of the structure connecting to the external device 5.

17- Smartphone holder with bottom groove have resilience thanks to combination of curve shaped cross section (Figure 109): This smartphone holder is similar to that shown in item 15 or 16 above, however, its groove 1 has reserve I-shaped bottom lc connects to J-shaped front wall la and C-shaped back wall la. The underside of the bottom 1 c is attached to coupler of external device 5 or half of the structure connecting to the external device 5.

18- Smartphone holder with bottom groove have resilience thanks to combination of curve shaped cross section (Figure 110):

This smartphone holder is similar to that shown in item 15 or 16 above, however, its groove 1 has reserve I-shaped bottom lc connects to tall and flat C-shaped front wall la and C-shaped back wall la. The underside of the bottom lc is attached to coupler of external device 5 or half of the structure connecting to the external device 5.

19- Smartphone holder with bottom groove have resilience thanks to combination of curve shaped cross section (Figure 110):

This smartphone holder is similar to that shown in item 15 or 16 above, however, its groove 1 has reserve I-shaped bottom lc connects to front wall la with the shape of two J joined together (or tall and flat C-shaped front wall) and the -shaped back wall la. The underside of the bottom lc is attached to coupler of external device 5 or half of the structure connecting to the external device 5.

20- Smartphone holder with bottom groove have resilience thanks to combination of curve shaped cross section (Figure 111):

This smartphone holder is similar to that shown in item 15 or 16 above, however, its groove 1 has reserve I-shaped bottom lc connects to double S-shaped front wall la and W-shaped back wall la. The underside of the bottom lc is attached to coupler of external device 5 or half of the structure connecting to the external device 5.

21- Smartphone holder with bottom groove have resilience thanks to combination of curve shaped cross section (Figures 112 and 113):

This smartphone holder is similar to that shown in item 20, however, this holder does not have back case. The front wall la is covered with silicone tube 4h and blocked by flange 4i. The silicone tube has rectangular-shaped cross section and connects to T-shaped branch at one outer side of the rectangular. It has resilience to prevent the smartphone 6 against scratches of screen and increase the adhesion of wall into smartphone 6. The underside of the bottom lc is attached to coupler of external device 5 or half of the structure connecting to the external device 5.

22- Smartphone holder with bottom groove have resilience thanks to combination of curve shaped cross section (Figure 108):

This smartphone holder is similar to that shown in item 15 or 16 above, however, its groove 1 has reserve I-shaped bottom lc connects to L-shaped front wall la and U-shaped back wall lb. The inside of wall la and lb are covered with polyurethane layer 4p to prevent the smartphone 6 against scratches of screen and increase the adhesion of wall into smartphone 6. The underside of the bottom 1 c is attached to coupler of external device 5 or half of the structure connecting to the external device 5.

23- Two side smartphone holder (see Figure 117):

This holder has grooves to holding 2 angles of smartphone which is formed by the connection of bottom groove 1 and side groove perpendicularly. The underside of bottom lc directed towards the back of smartphone holder connects to coupler of external device 5 or half of the structure of external device 5. The sine-shaped spring 4 connects side walls 3 of angle groove. This two-side smartphone holder is compact when not in use and simple to produce.

24- The smartphone back case holding 4 angles of smartphone and covering 4 side edges of smartphone (see Figure 120):

The smartphone back case holding 4 angles of smartphone and covering 4 side edges of smartphone in which each groove holding 4 angles of smartphone is constituted by the perpendicular connection of 1 section of bottom groove 1 or top groove 4 and side groove 3. In the back view, this groove has shape of letter L. The elastic springs 4 are bent in a circle of about 270 degrees and connect two adjacent angle grooves (see Figure 118). The underside of bottom 1 c connects to coupler of external device 5 or half of the structure of external device 5 so that this back case can be served as back case cum smartphone holder capable of connecting to external devices (see Figure 119).

25- The smartphone back case holding 4 angles of smartphone and covering 4 side edges of smartphone (see Figures 118 and 119):

The smartphone back case holding 4 angles of smartphone and covering 4 side edges of smartphone in which each groove holding 4 angles of smartphone is constituted by the perpendicular connection of 1 section of bottom groove 1 or top groove 4 and side groove 3. In the back view, this groove has shape of letter L. The elastic springs 4 are bent in circumference of the axial section of peanut and have opening on one side and connect two adjacent angle grooves (see Figure 120).

The underside of bottom 1 c connects to coupler of external device 5 or half of the structure of external device 5 so that this back case can be served as back case cum smartphone holder capable of connecting to external devices (see Figure 121).

26- The smartphone back case holding 4 angles of smartphone and covering 4 side edges of smartphone (see Figures 118 and 119):

The smartphone back case holding 4 angles of smartphone and covering 4 side edges of smartphone in which each groove holding 4 angles of smartphone is constituted by the perpendicular connection of 1 section of bottom groove 1 or top groove 4 and side groove 3. In the back view, this groove has shape of letter L. The elastic springs 4 are bent in circumference of the axial section of heart symbol and have opening on the lower angle and connect two adjacent angle grooves (see Figure 122).

The underside of bottom 1 c connects to coupler of external device 5 or half of the structure of external device 5 so that this back case can be served as back case cum smartphone holder capable of connecting to external devices (see Figure 123).

27-Four-side smartphone back case cum smartphone holder (see Figures 124-125): This four-side smartphone back case includes bottom groove 1 and side groove 3 and side groove 6. Elastic spring 4 has shape of narrow and high U provided that two ends of the U are connected between ends of adjacent grooves (see Figure 124).

The underside of bottom 1 c connects to coupler of external device 5 or half of the structure of external device 5 so that this back case can be served as back case cum smartphone holder capable of connecting to external devices (see Figure 125).

28- Four-side smartphone back case cum smartphone holder (see Figures 126 and 127):

This four-side smartphone back case includes bottom groove 1 and side groove 3 and side groove 6. Elastic spring 4 has narrow and high M-shaped cross section provided that two lower ends of letter M are connected between ends of adjacent grooves (see Figure 126).

The underside of bottom 1 c connects to coupler of external device 5 or half of the structure of external device 5 so that this back case can be served as back case cum smartphone holder capable of connecting to external devices (see Figure 127).

29- Four-side smartphone back case cum smartphone holder (see Figures 128 and 129):

This four-side smartphone back case includes bottom groove 1 and side groove 3 and side groove 6. Elastic spring 4 has W -shaped cross section provided that two lower ends of letter W are connected between ends of adjacent grooves (see Figure 128).

The underside of bottom 1 c connects to coupler of external device 5 or half of the structure of external device 5 so that this back case can be served as back case cum smartphone holder capable of connecting to external devices (see Figure 129).

30- Four-side smartphone back case cum smartphone holder (see Figures 128 and 129):

This four-side smartphone back case includes bottom groove 1 and side groove 3 and side groove 6. Elastic spring 4 has w-shaped cross section provided that two lower ends of letter w are connected between ends of adjacent grooves (see Figure 130).

The underside of bottom 1 c connects to coupler of external device 5 or half of the structure of external device 5 so that this back case can be served as back case cum smartphone holder capable of connecting to external devices (see Figure 131). 31- Four-side smartphone back case cum smartphone holder (see Figures 132-133):

This four-side smartphone back case is similar to that shown in item 30, however, it is added one more closed sine-shaped spring which has 4 points connected to the 4 points on the letter w to increase the traction of the spring and make the spring close to the back of the phone (see Fig. 132).

The underside of bottom 1 c connects to coupler of external device 5 or half of the structure of external device 5 so that this back case can be served as back case cum smartphone holder capable of connecting to external devices (see Figure 133).

32- Four-side smartphone back case cum smartphone holder (see Figures 132-133):

This four-side smartphone back case is similar to that shown in item 30, however, it is added one more closed sine-shaped spring which has 4 points connected to the 4 points on the letter w to increase the traction of the spring and also serve as back case 2 of smartphone and make the spring 4 close to the back of the phone 6 (see Fig. 132).

33- Four-side smartphone back case cum smartphone holder (see Figures 134-135):

This back case has grooves holding 4 edges of smartphone and back case 2 provided that it is flat and thin and has rectangular -shaped cross section in the rear view of smartphone holder. It includes V-shaped springs 4 in which two springs 4 are connected between bottom groove 1 and the lower edge of back case 3 and two other springs 4 are connected top groove 7 and the upper edge of back case 2 and two spring 4 are connected to left groove 3 and left edge of back case 2 and two last springs 4 are connected right groove 3 and right edge of back case 2 (see Figure 134).

The underside of bottom 1 c connects to coupler of external device 5 or half of the structure of external device 5 so that this back case can be served as back case cum smartphone holder capable of connecting to external devices (see Figure 135). 34- Four-side smartphone back case cum smartphone holder (see Figures 136 and 137):

This four-side smartphone back case is similar to that shown in item 33, however, its back case 2 is connected to back wall lb of bottom groove 1 (see 136).

The underside of bottom lc connects to coupler of external device 5 or half of the structure of external device 5 so that this back case can be served as back case cum smartphone holder capable of connecting to external devices (see Figure 137).

35- Four-side smartphone back case cum smartphone holder (see Figures 138-139):

This back case has grooves holding 4 edges of smartphone and back case 2 provided that it is flat and thin and has rectangular -shaped cross section in the rear view of smartphone holder. On the back case 2 has a rectangular hold to create space for camera and sensor on the back of the smartphone to be exposed. It has thin and inclined I-shaped springs in which two springs 4 are connected between bottom groove 1 and the lower edge of back case 2 and two other springs 4 are connected top groove 7 and the upper edge of back case 2 and two spring 4 are connected to left groove 3 and left edge of back case 2 and two last springs 4 are connected right groove 3 and right edge of back case 2 (see Figure 138).

The underside of bottom 1 c connects to coupler of external device 5 or half of the structure of external device 5 so that this back case can be served as back case cum smartphone holder capable of connecting to external devices (see Figure 139).

36- Four-side smartphone back case cum smartphone holder (see Figures 140-141):

This back case has grooves holding 4 edges of smartphone and back case 2 provided that it is flat and thin and has rectangular -shaped cross section in the rear view of smartphone holder. On the back case 2 has a rectangular hold to create space for camera and sensor on the back of the smartphone to be exposed. It has thin and S-shaped springs in which two springs 4 are connected between bottom groove 1 and the lower edge of back case 2 and two other springs 4 are connected top groove 7 and the upper edge of back case 2 and two spring 4 are connected to left groove 3 and left edge of back case 2 and two last springs 4 are connected right groove 3 and right edge of back case 2 (see Figure 140). The underside of bottom 1 c connects to coupler of external device 5 or half of the structure of external device 5 so that this back case can be served as back case cum smartphone holder capable of connecting to external devices (see Figure 141).

37- Four-side smartphone holder with 3 springs connecting back case and 4 grooves holding the smartphone (see Figure 7):

This holder is similar to the three-side smartphone holder shown in item 1, however, it has one more groove 7 to hold the upper edge of smartphone. This top groove 7 has a rectangular hole 7con the back wall 7b and spring 4a connecting the back case 2 and back wall 7b of top groove 7. A half of mechanism connecting to external device is connected to the underside of bottom groove 1.

38- Four-side smartphone holder with 3 springs connecting back case and 4 grooves holding the smartphone:

This is similar to the holder shown in item 37, however, it does not have a half of mechanism connecting to external device.

39- The smartphone side case suitable for variety of smartphone with different dimensions which has short groove to hold the edges of smartphone connected by elastic springs and cover the circumference of the smartphone (see Figure 61 to Figure 62):

Smartphone side case or back case whose side groove is formed by two parallel side walls. Each of the lateral wall consists of several segments staggered together. The bottom of groove is constituted by S-shaped springs and the plane formed by this S-shaped curve is a curved surface. Each S-shaped spring is connected between each of the two ends of the two opposite and staggered grooves.

40- Smartphone back case or holder whose side groove is capable of adjusting the width (see cross section of side groove in figures 102 to 111 and Figures 76 to 82):

This back case or holder is similar to those shown in items 1 to 36, however, its side groove is capable of adjusting the width because the groove is formed by reserve I-shaped or C-shaped bottom. The bottom connects to at least one side wall of groove with elasticity thanks to tall and flat L-shaped or C-shaped or J-shaped or S-shaped or reserve U-shaped cross section. The underside of bottom 1 c connects to coupler of external device 5 or half of the structure of external device 5 so that this back case can be served as back case cum smartphone holder capable of connecting to external devices.

41- Smartphone back case or holder whose side groove is capable of adjusting the width (see Figures 64 to 73):

This back case or holder is similar to those shown in items 1 to 36, however, its side groove is capable of adjusting the width because groove is formed by 2 side wall having cross section shape of two letter Is parallel with each other or a pair of letter J or L symmetrical with each other and side branches turned towards each other. The groove bottom has cross section forming the letter inclined I, V, N, M, S, W, W or C connecting between two side walls. Thanks to the ability to change the width of the bottom of side groove, the smartphone holder with this groove is suitable for variety of smartphone with different thicknesses. The top of the side wall of groove can be curved outward so that it is easy to insert the smartphone into the groove. The edge of the side walls of the side groove or bottom groove can be curved outward so that it is easy to insert the smartphone into the groove.

42- Smartphone back case or holder whose side groove is capable of adjusting the width (see Figures 56 to 60):

This back case or holder is similar to those shown in items 1 to 36, however, its side groove is capable of adjusting the width because groove is formed by 2 side wall having cross section shape of two letters I parallel with each other or a pair of letter J or L symmetrical with each other and side branches turned towards each other. The groove bottom has cross section forming the letter C, W or V. Thanks to the ability to change the width of the bottom of side groove, the smartphone holder with this groove is suitable for variety of smartphone with different thicknesses. The top of the side wall of groove can be curved outward so that it is easy to insert the smartphone into the groove. The edge of the side walls of the side groove or bottom groove can be curved outward so that it is easy to insert the smartphone into the groove.

Claims

1- Cellular phone holder or smartphone holder (hereinafter referred as smartphone holder) or smartphone back case or side case (hereinafter referred as smartphone back case) is a three-sided holder and made of the following components:

- horizontal groove with the lip turned upward to hold the bottom side of smartphone (hereinafter referred as bottom groove) and it may have the following forms: bottom groove is capable of adjusting the width of lip and its cross section is shaped like letter C, U, J, W or G, this groove is located at the bottom and in the middle of the smartphone holder, the inside of bottom groove may be covered with elastic lining such as polyurethane foam, rubber foam, or silicone foam, elastic layer can have spiked surface or has surface with raised edges and is made of elastic polyurethane, rubber foam or silicone foam; this bottom groove may have a bar holding its bottom or its side and this bar is attached onto the outer surface of the bottom or the side of the bottom groove; the length of the bar holding the bottom or side edge of the bottom groove should be the same as the length of the bottom groove, the bottom groove can be replaced by the bar holding the bottom edge provided that this bar is straight bar and has cross section shape is in the form of letter I or letter L; or bottom groove is capable of adjusting the width of its body, which is the space between the bars holding the front and back of the smartphone, its cross-section can have the shape of a cursive w, specifically its cross-section looks like two letters C facing each other, and their bottom legs are connected to each other by an upside down U in between, the inner bottom of this U is bridged to the bar holding the bottom of the bottom groove; its cross-section can have the shape of two letters S facing each other, in which one of the letter S is the mirror image of the other one, and their bottom legs are connected to each other by an upside down U in between, the inner bottom of this U is bridged to the bar holding the bottom of the bottom groove; or its cross-section can have the shape of two tilde, in which one of the tilde is the mirror image of the other one, they are connected to each other by an upside down U in between, the inner bottom of this U is bridged to the bar holding the bottom of the bottom groove; this bottom groove may have a bar holding its bottom or its side and this bar is attached onto the outer surface of the bottom or the side of the bottom groove; the length of the bar holding the bottom or side edge of the bottom groove should be the same as the length of the bottom groove, the bottom groove can be replaced by the bar holding the bottom edge provided that this bar is straight bar and has cross section shape is in the form of letter I or letter L; or bottom groove is capable of adjusting the width of its bottom, the bottom groove is made of a pair of bars serving as side walls of groove and elastic thin bars connecting these two bars together and serve as bottle of the bottom groove, these elestic bars also serve as elastic spring to pull 2 side walls of the groove close together (hereinafter referred as the bottom elastic bar); the bars serving as side walls of groove has their cross-section forms the shape of a pair of standing letters I, or a pair of upside down letters L or J connecting their legs to each other, or a pair of two letters C, S, or P facing each other; the elastic bars has their vertical cross-section is in the shape of a plane formed by letter I turned sideway, or by curved lines such as letter U, C, S, O, W, or sine provided that the plane created by curved line is curved to conform with the edges of smartphone, or by folded lines such as letter V, N, Z, M, W, X, or zigzag; this bottom groove may have a bar holding its bottom or its side and this bar is attached onto the outer surface of the bottom or the side of the bottom groove; the length of the bar holding the bottom or side edge of the bottom groove should be the same as the length of the bottom groove, the bottom groove can be replaced by the bar holding the bottom edge provided that this bar is straight bar and has cross section shape is in the form of letter I or letter L;

- at least two vertical grooves on 2 sides with the mouth of the two vertical grooves directed towards each other forming a pair of groove holding 2 side edges of smartphone (hereinafter referred as side groove) and it may have the following forms:

side groove is capable of adjusting the width of lip and its cross section is shaped like letter C, U, J, W or G, this groove is located on both side of the smartphone holder, the inside of bottom groove may be covered with elastic lining such as polyurethane foam, rubber foam, or silicone foam, elastic layer can have spiked surface or has surface with raised edges and is made of elastic polyurethane, rubber foam or silicone foam; this side groove may have a bar holding its bottom or its side and this bar is attached onto the outer surface of the bottom or the side of the side groove; the length of the bar holding the bottom or side edge of the side groove should be the same as the length of the side groove, the side groove can be replaced by the bar holding the bottom edge provided that this bar is straight bar and has cross section shape is in the form of letter I or letter L; or side groove is capable of adjusting the width of its body, which is the space between the bars holding the front and back of the smartphone, its cross-section can have the shape of a cursive w, specifically its cross-section looks like two letters C facing each other, and their bottom legs are connected to each other by an upside down U in between, the inner bottom of this U is bridged to the bar holding the bottom of the bottom groove; its cross-section can have the shape of two letters S facing each other, in which one of the letter S is the mirror image of the other one, and their bottom legs are connected to each other by an upside down U in between, the inner bottom of this U is bridged to the bar holding the bottom of the bottom groove; or its cross-section can have the shape of two tilde, in which one of the tilde is the mirror image of the other one, they are connected to each other by an upside down U in between, the inner bottom of this U is bridged to the bar holding the bottom of the bottom groove; this side groove may have a bar holding its bottom or its side and this bar is attached onto the outer surface of the bottom or the side of the side groove; the length of the bar holding the bottom or side edge of the side groove should be the same as the length of the side groove, the side groove can be replaced by the bar holding the bottom edge provided that this bar is straight bar and has cross section shape is in the form of letter I or letter L; or side groove is capable of adjusting the width of its bottom, the side groove is made of a pair of bars serving as side walls of groove and elastic thin bars connecting these two bars together and serve as bottle of the bottom groove, these elestic thin bars also serve as elastic spring to pull 2 side walls of the groove close together; the bars serving as side walls of groove has their cross-section forms the shape of a pair of standing letters I, or a pair of upside down letters L or J connecting their legs to each other, or a pair of two letters C, S, or P facing each other; the elastic thin bars has their vertical cross-section is in the shape of a plane formed by letter I turned sideway, or by curved lines such as letter U, C, S, O, W, or sine provided that the plane created by curved line is curved to conform with the edges of smartphone, or by folded lines such as letter V, N, Z, M, W, X, or zigzag; this side groove may have a bar holding its bottom or its side and this bar is attached onto the outer surface of the bottom or the side of the side groove; the length of the bar holding the bottom or side edge of the side groove should be the same as the length of the side groove, the side groove can be replaced by the bar holding the bottom edge provided that this bar is straight bar and has cross section shape is in the form of letter I or letter L;

- back case of smartphone holder (referred as smartphone back case) may or may not be available. In case that has back case, it may has form of flat plate, polygonal shape such as rectangular, mesh, or pattern created by curves or folded lines for the purpose of decoration; the smartphone back case is connected to the back wall of the bottom groove holding the bottom of the smartphone or side groove holding the side edge of smartphone, or it is connected to at least one connecting bar which is connected of back wall of bottom groove and side groove;

- the elastic bar serves as elastic spring and leans against the back of smartphone has shape of curve, zigzag, sine, a curved segment, curved segments joined together or zigzag connected to curved segments; the edges on one side of this spring form a flat or bend surface to be fitted with a flat or bend form of smartphone’s back (hereinafter refereed as smartphone back spring); the shape of smartphone back spring facing the back of the smartphone holder can be either folded lines resembling the letter V, N, Z, M, W, or zigzag or curved lines such as letter C, S, U, W or sine shape, or it can has shape like letter X or several letters X standing next to each other and connected by their legs, or like shape of lozenge adhered to each other at obtuse angles; one end of elastic bar connects to back wall of the side groove, 2 back walls of two opposite side groove, or 2 back walls of bottom groove or the lower support to back wall of side groove; . The elastic bar connects bar holding the back wall of bottom groove and bar holding the back wall of side groove or back case or back wall of side groove or the elastic is not leaned against the back of smartphone but connecting lower end of left side groove and left end of bottom groove and 1 elastic bar is connected the lower end of right side groove and right end of bottom groove; or the elastic bar connect lower end of bar holding the bottom of left side groove and left end of bar holding the bottom of bottom groove, and connects lower end of bar holding the bottom of right side groove and right end of bar holding the bottom of bottom groove; - component connector or component coupler is attached to back case or holder of smartphone connects the component coupler of external accessories or deceives (hereinafter referred as component connector or coupler of smartphone back case or holder). It is attached to smartphone back case, side groove or side support of smartphone back case or smartphone holder and it may have the following forms: component coupler is one or more bars with holes to screw into bar with holes of external device by means of bolt or nut bolt. It is better to have one more twisted spring or ring made of elastic material such as rubber or silicone or polyurethane on the body of bolt to create a thrust to hold the nut on the body of bolt and preferably, on the surrounding surface of two bar with holes should have tooth and the groove between tooth is directed from the outside of the center of the hole to define the angle between bar with hole of smartphone back case or holder and bar with hole of external device as intended of user. One of two bars with hole can be replaced by threaded bar so that the bolt of wing bolt to be screwed; or component coupler with type of 2D coupler which is a block with a circular hole of smartphone back case or holder so that the circular shaft with surface with grooves or holes of external devices can be inserted into. On the block with round holes, there is a hole with twisted teeth penetrating from the surface into the round holeto fix the wing bolt for the purpose of defining the angle between bar with hole of smartphone back case or holder and shaft of external device at the user's discretion, or block with circular hole and circular shaft can be reversed; or component coupler with type of 2D coupler which is a block with a circular hole of smartphone back case or holder so that the circular shaft with surface with grooves or holes of external devices can be inserted into. The surface of circular hole is made of magnetic metal so that magnet of external devices can be inserted into to define the angle between bar with hole of smartphone back case or holder and shaft of external device at the user's discretion, or block with circular hole and circular shaft can be reversed; or component coupler with type of 3D coupler is a block with a hollow sphere inside which has an opening below so that the sphere with a neck of external object or of external device to be inserted into. The block with a hollow sphere inside has a hole with twisted teeth penetrating from the surface into the hollow sphere to fix the wing bolt for the purpose of defining the angle between block with a hollow sphere inside and sphere with a neck of external object or of external device at the user's discretion, or block with a hollow sphere and sphere with a neck can be reversed; or component coupler with type of 3D coupler is a block with a hollow sphere inside which has an opening below so that the sphere with a neck of external object or of external device to be inserted into. The surface of hollow sphere is made of magnetic metal so that the magnet of sphere with a neck of external devices can be inserted into to define the angle between block with a hollow sphere inside and sphere with a neck of external object or of external device at the user's discretion, or block with a hollow sphere and sphere with a neck can be reversed; or component coupler is a cylindrical shaft perpendicular to the bottom groove and connected to the underside of bottom groove or underside of bar supporting the lower edge or attached to the bar holding the bottom of bottom groove and the cylindrical shaft is the rotary axis of 360-degree videography or photogram; or component coupler in the form of a magnetic metal plate attached plate holding the back of smartphone of smartphone back case or smartphone holder so that the magnet of external devices can be inserted into, or magnetic metal plate and the magnetic plate can be reversed; or component coupler in the form of layer with reserve J-shaped hook on the back case of smartphone holder to be affixed to felts or layer with reserve J-shaped hook of external devices, or hook layer and felt layer can be reversed; or component coupler in the form of a hole or hook on the smartphone back case to put on the bottom of pants or shirt or dress and a button is added into the position convenient for hand on the outer surface of the sleeve or thigh of trouser or dress; or component coupler in the form of a bar with the cross section shape of T letter or L letter or Y letter or J letter or P letter or Q letter to insert into the corresponding grooves on external devices, or the bars having cross-sectional shape of branched letter and corresponding grooves can be reversed; or component coupler in the form of hook similar to hook clamping the pen into shirt pocket on the smartphone back case to hook into the waistband or belt or the back of the dress or collar or additional straps on pants or on shirt or on dress; or component coupler in the form of ring or strap on back case for the waistband or the strap on the body to pass through; or component connector or component coupler with capable of helping the component attached to smartphone back case or smartphone holder can be connected or pasted or secured into the component connector or component coupler of external device; and and there is no component connector or component coupler in case the external device does not attach directly to the smartphone back case or holder such as external loud speaker or reserve battery of external monitor, or remote control or external projector, or external pulse meter, or an external breath tester, or external air quality meter, or external food quality tester, or external barcode reader, or external thermometer, or an optical meter, or a photometer, or an external positioning device, or energy meter thanks to the oscillation of running or jumping.

2- The 3 -side smartphone holder or back case according to claim 1, however, the back spring or elastic bar of side groove is shaped like a grid which is a combination of folded line connected to each other or curved line connected to each other or straight line connected to each other or is a combination of curved line or folded line connected to each other.

3- One-side smartphone holder includes the following components:

- horizontal groove with the mouth turned upward to hold the lower edge of smartphone (hereinafter called as bottom groove) with the form similar to that shown in Claim 1 ;

- the plate holding the back of smartphone which may or may not be available. In case that has back case, its form is similar to that shown in Claim 1. The smartphone back case is connected to the back wall of the groove holding the lower edge of smartphone or groove holding the side edge of smartphone or connected to at least one connecting bar which is connected of back wall of bottom groove and side groove;

- component connector or component coupler is similar to that shown in Claim 1 and attached to plate holding the back of smartphone or bottom groove or bar supporting the lower edge or bar holding the bottom of bottom groove or side bar of bottom groove of smartphone back case or smartphone holder; and

- and there is no component connector or component coupler in case the external device does not attach directly to the smartphone back case or holder such as external loudspeaker or reserve battery of external monitor, or remote control or external projector, or external pulse meter, or an external breath tester, or external air quality meter, or external food quality tester, or external barcode reader, or external thermometer, or an optical meter, or a photometer, or an external positioning device, or energy meter thanks to the oscillation of running or jumping.

4- The smartphone holder holding two opposite edges of smartphone with the following components:

- horizontal groove with the mouth turned downwards to hold the upper edge of smartphone (hereinafter called as top groove) with the form similar to that shown in Claim 1 ;

- the plate holding the back of smartphone which may or may not be available, in case that has back case, its form is similar to that shown in Claim 1, the smartphone back case is connected to the back wall of the groove holding the lower edge of smartphone or groove holding the side edge of smartphone or connected to at least one connecting bar which is connected of back wall of bottom groove and side groove;

- the spring against the back of smartphone has form similar to that shown in Claim 1, and one end of back spring is connected to back wall of bottom groove and the other end is connected to back wall of top groove; or each back spring has one end connected to back wall of either bottom groove or side groove and the other end is connected to plate holding the back of smartphone;

- component connector or component coupler is similar to that shown in Claim 1 and attached to plate holding the back of smartphone or side groove or bar supporting the side edge or bar holding the bottom of side groove or bar holding the edge of side groove of smartphone back case or smartphone holder; and

5- The 3-side smartphone holder or back case according to Claim 4, however, the back spring or elastic bar of side groove is shaped like a grid which is a combination of folded line connected to each otheror curved line connected to each other or straight line connected to each other or is a combination of curved line or folded line connected to each other.

6- The smartphone holder holding four edges of smartphone with the following components:

- at least two vertical grooves whose mouth is directed towards each other ((hereinafter called as side groove) with the form similar to that shown in Claim 1 ; - the plate holding the back of smartphone which may or may not be available. In case that has back case, its form is similar to that shown in Claim 1. The smartphone back case is connected to the back wall of the groove holding the lower edge of smartphone or groove holding the upper edge of smartphone or connected to at least one connecting bar which is connected of back wall of bottom groove and side groove;

- the spring against the back of smartphone has form similar to that shown in Claim 1 , and each back spring is connected to two back walls of either adjacent grooves or opposite grooves or each back spring has one end connected to back wall of each groove and the other end is connected to plate holding the back of smartphone;

7- The three-side smartphone holder or back case according to Claim 6, however, the back spring or elastic bar of side groove is shaped like a grid which is a combination of folded line connected to each other or curved line connected to each other or straight line connected to each other or is a combination of curved line or folded line connected to each other.

8- Smartphone holder or smartphone back case holding 4 corners of smartphone including the following components:

- 4 grooves holding the smartphone corners in which each groove is formed by two component side grooves connected and perpendicular to each other provided that 2 mouths of component groove is directed inwards. The angular groove has shape of letter L when looking at the front of the smartphone holder and 4 angular groove holds 4 corners of smartphone (hereinafter called as angular groove). The angular groove has form similar to that shown in Claim 1;

- the plate holding the back of smartphone which may or may not be available. In case that has back case, its form is similar to that shown in Claim 1. The smartphone back case is connected to the back wall of the groove holding the lower edge of smartphone or groove holding the upper edge of smartphone or connected to at least one connecting bar which is connected of back wall of bottom groove and side groove;

- component connector or component coupler is similar to that shown in Claim 1 and attached to plate holding the back of smartphone or side groove or bar supporting the side edge or bar holding the bottom of side groove or bar holding the edge of side groove of smartphone back case or smartphone holder;

9- The three-side smartphone holder or back case according to Claim 8, however, the back spring or elastic bar of side groove is shaped like a grid which is a combination of folded line connected to each other or curved line connected to each other or straight line connected to each other or is a combination of curved line or folded line connected to each other.

10- Smartphone holder according to Claim 1 to 9, however, smartphone holder is attached to device securing the smartphone into user body so that the smartphone is close to ear or eyes of user (hereinafter referred as smartphone holder having device to secure smartphone into user body). The smartphone holder having device to secure smartphone into user body is constituted by the following parts: - frame standing against body surface with one side of the frame is applied to surface of a body part, such as the chest, body, belly, shoulders, neck, arm, hand, leg, foot, head or on the shirt or on the pant or waistband or shoes (hereinafter called as frame against the user body). This frame against the user body has shape of flat plate or a plate curved to conform to the curved surface of the body part where frame leaned against or in the form of frame constituted by bars such as frame with 4 bars connecting to each other to form the rectangular whose dimension is greater than that of smartphone so that the smartphone can placed neatly inside this frame;

- part used to secure the frame standing against body surface (hereinafter called as part used to secure the frame standing against body surface). This part could be elastic bands with a head attached to the frame against the body surface and the one end with hook to secure into the collar or buttons or clamp into the waistband. This part could also be a two-component structure consisting of a magnet and a magnetic alloys or magnet and magnet, in which, at least one magnet or iron plate or magnetic alloys are placed on the surface of the frame against the surface of the body and at least magnet or iron plate or magnetic alloys are place inside the shirt when in use so that the frame against user body can be hang on the user shirt or pant. The part used to secure the frame standing against body surface may be the elastic band or band connecting elastic spring in which one end is connected to frame against the user body and the other end has hook or ring or bar to pin or hook into collar or button of shirt or crossing the shoulder, however, the part used to secure the frame standing against body surface should include elastic band or band connecting elastic spring in which one end is connected to frame against the user body to hook into button on pant or passant or belt. It is better to have two lower strings hooked to a strap on the back of the pants or two strings crossed the user body and hooked together, in which one string is attached to frame standing against body surface and upper one on the other side may be in shape of strap crossing the neck or having hook or pin to secure into the collar or button on user shirt or may be magnetic or magnetic alloy plate or magnetic structure on the inside and outside of clothes to be attracted into clothes;

- shaft creating distance between user body and smartphone (hereinafter called as spacing shaft). This spacing shaft connects to frame against the user body and this shaft may be in the shape of folded shaft whose one end is mounted on the frame standing against body surface and the other end is attached to smartphone holder or attached to the a half of structure connecting to smartphone holder, and it can be folded or opened from the frame standing against body surface. The spacing shaft also has shape of tube with ability to adjust the length which is made of interlocked pipe with different dimension, and can be pulled out or pushed to change the length of the shaft, or tubular shape can be bent like a copper tube. In addition, the shaft may have shape of rectangular in which the frame length is much larger than that of a smartphone so that the smartphone can be folded into the frame, or shaft is in folded form with angular coupler in folded angle; or spacing shaft is tubular type with ability to bend and keep in shape after bending. The spacing shaft is not required in case smartphone holder is secured the smartphone into user body for storing the smartphone; and

- coupler to create angle between spacing shaft of frame against user body and smartphone or coupler to create angle between spacing shaft and smartphone holder. The angular coupler may have the following structure: wing bolt is pierced through the hole on shaft to create distance between frame against the user body and smartphone and simultaneously pierced through the hole on hole on frame against the user body or have the same structure as the angular coupler of smartphone and external device of the holder shown in items 44 to 46. The angular coupler between frame against the user body and smartphone is not required in case smartphone holder is secured the smartphone into user body for storing the smartphone.

11- Smartphone holder having device to secure smartphone into user body according to Claim 10, however, the frame against the body is elastic semicircle frame leaned on the user's arm. Two ends of elastic semicircle frame are connected with two straps and the other two ends of these two straps has 2 opposite layers of reserve J-shape hook or a layer of reserve J-shaped hook and a felt layer opposite to each other so that 2 ends can be attached together to secure the frame fixed to user’s arm.