DIY Frame for Picture or Poster

Abstract

A fame kit for a sheet-like object includes a frame arrangement and a positioning arrangement. The frame arrangement includes a plurality of frame units of a plurality of lengths provided for selection and a coupling connector for detachably connecting two frame units. The positioning arrangement includes a positioning unit and a positioning support inherently provided for each of the frame unit for supporting the positioning unit. The positioning unit is detachably connected and provided to the positioning support, including a supporting arm connecting to the positioning support to secure into position and a resilient biasing arm integrally extended from the supporting arm such that a biasing portion is defined at which the sheet-like object is biased to position onto the frame arrangement. The positioning unit also provides a guiding slot for guiding an insertion of the sheet-like object.

Description

CROSS REFERENCE OF RELATED APPLICATION

This is a non-provisional application that claims the benefit of priority under 35 U.S.C.§119 to a provisional application, application No. 61/665,308, filed Jun. 28, 2012.

BACKGROUND OF THE PRESENT INVENTION

1. Field of Invention

The present invention relates to a DIY frame for picture or poster, and more to particularly to a frame kit for supporting and displaying a large-scale sheet-like object such as a poster or a picture.

2. Description of Related Arts

Posters or pictures are widely used in the marketing materials for promoting a business. For example, a poster or a picture may be used in a store for attracting customers. A poster or a picture may also be required for use in an exhibition or a trade-show. However, conventional method of mounting or supporting a picture or poster involves a large scale poster or picture frame which is very expensive in nature. After a picture or poster is mounted onto a frame, the frame is then supported by a support stand for supporting onto a ground surface. Because of the size of the poster or the picture is usually very large, the weight of the frame and the support stand are proportional to the size of the picture or the poster and the cost of providing a frame is very high.

In particular, a regular frame generally includes four side units which peripherally enclose the poster or the picture, a front transparent cover and a back support board unit. The poster or the picture is sandwiched by the front transparent cover and the back support board unit while the front transparent cover and the back support board unit are connected to the four side units and secure into position through a groove like structure provided on the side units. Accordingly, the frame and the poster or the picture of a particular size have to be perfectly matched with each other. In other words, the regular frame is required to be customized for a picture of a particular size, which is cost ineffectively and time consuming.

Poster or Picture printing becomes more and more common and self-servicing printing services are also available. The advanced technological development in digital camera and computer has also facilitated the act of taking picture or poster design by lay person. While the cost of taking picture or poster design and the cost of printing are lowered, which is especially important to small to medium sized businesses, the cost of showing and displaying a poster or picture remains at a high level because of the high cost of picture or poster frame.

In addition, because the dimension of a particular picture frame is fixed, the picture frame cannot be used for other picture of different dimension. When the poster or the picture is used for marketing purpose in an exhibition or a trade show, it is highly likely that the same picture or poster will not be used repeatedly and it is also highly likely that the dimension requirement of the picture frame may be varied to fit the exhibition area or the display area. Therefore, the particular picture frame which is fit for use for a first occasion may not be fit for use for a second occasion. This type of picture frame, which does not provide any size flexibilities, is not only environmental unfriendly, but also cost ineffectively.

Furthermore, because the dimension of a particular frame is fixed, it is not convenience for storage for future use or for transportation or carriage. For example, after the particular frame is used in an exhibition or a trade show, the frame can neither be disassembled for transportation, nor packed into a compact size for storage.

SUMMARY OF THE PRESENT INVENTION

The invention is advantageous in that it provides a DIY frame for poster or picture which is cost effective, adjustable, re-mountable and easy to use.

Another advantage of the invention is to provide a DIY frame for a sheet-like object which is easy to assembly and compact for transportation and storage.

Another advantage of the invention is to provide a DIY frame for a sheet-like object which includes a frame arrangement comprising a plurality of frame units and a coupling connector for connecting two frame units for forming the frame arrangement, wherein the frame units of different length and design can be used and a mix and match flexibility is provided.

Another advantage of the invention is to provide a DIY frame for a sheet-like object which includes a frame arrangement and a positioning arrangement supported by the frame arrangement arranged for positioning the sheet-like object, wherein the positioning arrangement comprises a positioning unit and a positioning support supporting the positioning unit, wherein the positioning unit comprises a supporting arm arranged for connecting to the positioning support and a biasing arm integrally extended from the supporting arm to define a biasing portion arranged for pressing the sheet-like object onto a rear side of the frame arrangement to secure into position. The positioning arrangement is simple in construction and easy to use. The positioning arrangement may also be pre-installed onto the frame unit for providing additional convenience.

Another advantage of the invention is to provide a DIY frame for a sheet-like object which includes a frame arrangement and a positioning arrangement supported by the frame arrangement arranged for positioning the sheet-like object, wherein a guiding slot is provided to guide an insertion of the sheet-like object to secure into position.

Additional advantages and features of the invention will become apparent from the description which follows, and may be realized by means of the instrumentalities and combinations particular point out in the appended claims.

According to the present invention, the foregoing and other objects and advantages are attained by a frame for a sheet-like object, comprising:

a frame arrangement comprising a plurality of frame units and a coupling connector for connecting two frame units, wherein each of the frame unit has a frame body having an elongated construction defining a front side and a rear side opposite to the front side in which the front side is adapted for framing the sheet-like object in a presentable manner and the rear side is adapted for mounting the sheet-like object, wherein the plurality of frame units are connected form the frame arranged for surroundingly framing the sheet-like object;

a positioning arrangement comprising a positioning unit and a positioning support supporting the positioning unit, wherein the positioning unit comprises a supporting arm connecting to the positioning support to secure into position and a biasing arm which is resilient integrally extended from the supporting arm such that a biasing portion is defined at which the sheet-like object is biased to position onto the frame arrangement; and

a strap unit having an elongated body defining two ends connected to the frame arrangement through the rear side of the frame units arranged for providing additional support to the sheet-like object.

Preferably, the positioning arrangement further includes a guiding slot between the supporting arm and the biasing arm, wherein the guiding slot is formed by a straight side and a curved side in such a manner that the curved side and the straight side overlap at a first end of the curved side and the straight side defining a bottom of the guiding slot and a width of the guiding groove which is a distance between the curved side and the straight side gradually increases towards a second end of the curved side and the straight side defining an opening of the guiding slot, thereby the guiding slot is capable of guiding an inserting of the sheet-like object entering from the opening towards the bottom at which the biasing portion is provided for securing the sheet-like object into position.

In accordance with another aspect of the invention, the present invention provides a fame kit for mounting a sheet-like object, comprising:

a frame arrangement comprising a plurality of frame units and a coupling connector for detachably connecting two frame units, wherein each of the frame unit has a frame body having an elongated construction defining a front side and a rear side opposite to the front side in which the front side is adapted for framing the sheet-like object in a presentable manner and the rear side is adapted for mounting the sheet-like object, wherein the plurality of frame units are connected to form the frame surroundingly framing the sheet-like object, wherein the plurality of frame units have a plurality of length provided for selection; and

a positioning arrangement comprising a positioning unit and a positioning support supporting the positioning unit, wherein the positioning support is inherently provided for each of the frame unit, wherein the positioning unit is detachably connected and provided to the positioning support, wherein the positioning unit comprises a supporting arm connecting to the positioning support to secure into position and a biasing arm which is resilient integrally extended from the supporting arm such that a biasing portion is defined at which the sheet-like object is biased to position onto the frame arrangement.

Preferably, a strap unit having an elongated body defining two ends connected to the frame arrangement through the rear side of the frame units arranged for providing additional support to the sheet-like object is also included.

Preferably, the positioning arrangement further includes a guiding slot between the supporting arm and the biasing arm, wherein the guiding slot is formed by a straight side and a curved side in such a manner that the curved side and the straight side overlap at a first end of the curved side and the straight side defining a bottom of the guiding slot and a width of the guiding groove which is a distance between the curved side and the straight side gradually increases towards a second end of the curved side and the straight side defining an opening of the guiding slot, thereby the guiding slot is capable of guiding an inserting of the sheet-like object entering from the opening towards the bottom at which the biasing portion is provided for securing the sheet-like object into position.

Still further objects and advantages will become apparent from a consideration of the ensuing description and drawings.

These and other objectives, features, and advantages of the present invention will become apparent from the following detailed description, the accompanying drawings, and the appended claims.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a perspective view of a DIY frame according to a preferred embodiment of the present invention.

FIG. 2A is a front view of the DIY frame according to the above preferred embodiment of the present invention.

FIG. 2B is a rear view of the DIY frame according to the above preferred embodiment of the present invention.

FIG. 3A illustrates a coupling connector of the DIY frame according to an exemplary embodiment of the above preferred embodiment of the present invention.

FIG. 3B illustrates a coupling connector of the DIY frame according to another exemplary embodiment of the above preferred embodiment of the present invention.

FIG. 3C illustrates a coupling connector of the DIY frame according to another exemplary embodiment of the above preferred embodiment of the present invention.

FIG. 3D illustrates a coupling connector of the DIY frame according to another exemplary embodiment of the above preferred embodiment of the present invention.

FIG. 4A illustrates a positioning arrangement of the DIY frame according to an exemplary embodiment of the above preferred embodiment of the present invention.

FIG. 4B illustrates a positioning arrangement of the DIY frame according to another exemplary embodiment of the above preferred embodiment of the present invention.

FIG. 4C illustrates a positioning arrangement of the DIY frame according to another exemplary embodiment of the above preferred embodiment of the present invention.

FIG. 4D illustrates a positioning arrangement of the DIY frame according to another exemplary embodiment of the above preferred embodiment of the present invention.

FIG. 4E illustrates a positioning arrangement of the DIY frame according to another exemplary embodiment of the above preferred embodiment of the present invention.

FIG. 4F illustrates a positioning arrangement of the DIY frame according to another exemplary embodiment of the above preferred embodiment of the present invention.

FIG. 4G illustrates a positioning arrangement of the DIY frame according to another exemplary embodiment of the above preferred embodiment of the present invention.

FIG. 5 illustrates a mounting strap unit of the DIY frame according to the above preferred embodiment of the present invention.

FIG. 6 illustrates the connection of different parts of the DIY frame according to an exemplary embodiment of the above preferred embodiment of the present invention.

FIG. 7A to 7C illustrate cross-section views of the integral frame arrangement and positioning arrangement coupling with the coupling connector of the DIY frame according to an exemplary embodiment of the above preferred embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT

Referring to FIGS. 1 to 7 of the drawings, a frame for a poster, a picture, a sheet-like object or the like according to a preferred embodiment of the present invention is illustrated. The frame includes a frame arrangement 10 arranged for forming a frame structure and a positioning arrangement 30 arranged for positioning a sheet-like object onto the frame structure.

Referring to FIGS. 1 to 3 of the drawings, the frame arrangement 10 comprises a plurality of frame units 11 connecting together to form the frame structure and a coupling connector 12 for connecting two adjacently positioned frame units 11. Preferably, the frame units 11 are detachably connecting together through the coupling connectors 12 such that the frame units 11 can be disassembled conveniently.

As shown in FIGS. 2 and 3 of the drawings, the frame arrangement 10 includes four frame units 11 providing four sides of the frame structure in which the four frame units 11 are connected by the coupling connectors 12 at four corners to form a rectangular frame structure. It is worth mentioning that the number of frame units 11 may be varied to form different frame structure such as a triangular frame structure, a hexagonal frame structure and etc.

In particular, the frame unit 11 has a frame unit body 110 having an elongated construction defining a front side 111, a rear side 112, a width W from the front side 111 to the rear side 112, a first end 113, a second end 114 and a length L from the first end 113 to the second end 114. The coupling connectors 12 are provided at the first end 113 and the second end 114 of the frame unit body 110 respectively. The sheet-like object is arranged to be positioned through the rear side 112 of the frame unit body 110 of the frame unit 11. Through providing frame units 11 of different length L, a frame structure of different size and dimension can be formed. In other words, a user is capable of buying mix and match frame units 11 to make a DIY frame.

It is worth mentioning that each of the frame unit 11 may have different structural construction for its frame unit body 10. For example, as shown in FIG. 2 of the drawings, the frame includes four frame units 11 in which one frame unit 11A has a U-shaped cross section defining a clipping arm 1101A and the other three frame units 11B have a block-like cross section. The frame unit 11A with the clipping arm 1101A is arranged to connecting to the other three frame units 11B in such a manner that the clipping arm 1101A is used to hold a sheet-like object such as a picture or a poster onto the frame. In other words, at least one frame unit 11 has the clipping arm 1101A for holding a sheet-like object.

Referring to FIGS. 3A to 3D of the drawings, the coupling connector 12 for connecting two frame units 11 comprises a first locking member 121 and a second locking member 122 complement to the first locking member 121 in such a manner that the first locking member 121 and the second locking member 122 are coupled with each other to lock into position. As shown in FIGS. 3A and 3B of the drawings, the first locking member 121 and the second locking member 122 are provided on at the first end 113 and the second end 114 of the frame unit body 110 of each frame unit 11. In other words, two pairs of frame units 11 of equal length L can be used to construct a rectangular frame or four frame units 11 of equal length L can be used to construct a square frame. Accordingly, mass production of the frame unit 11 can be facilitated and the production cost can be reduced.

In particular, as shown in FIGS. 3A and 3B, the second locking member 122 is a receiving cavity 122A (122B) and the first locking member 121 is a protruded member 121A (121B) complement to the receiving cavity 122A (122B) arranged for inserting into the receiving cavity 122A (122B) for connecting two frame units 11 into position. Preferably, as shown in FIG. 3A, the protruded member 121A is resilient, having a tapered end portion 1211A and an enlarged base portion 1212A for preventing unintentional loosening of the protruded member 121A from the receiving cavity 122A. Alternatively, as shown in FIG. 3B, the protruded member 121B is rigid and cylindrical in structure and is complement to the receiving cavity 122B arranged for inserting into the receiving cavity 122E to secure into position.

As shown in FIG. 3C of the drawings, the second locking member 122 is a receiving groove 122C and the first locking member 121 is a protruded member 121C complement to the receiving groove 122C arranged for sliding into the receiving groove 122C for connecting two frame units 11 into position.

Alternatively, as shown in FIG. 3D of the drawings, the first locking member 121 is a corner locking member 121D having a L-shaped structure and the second locking member 122 is a receiving cavity 122D provided at each of the first end 113 and the second end 114 of the frame unit body 110 of each frame unit 11. In other words, two pairs of frame units 11 of equal length L can be used to construct a rectangular frame or four frame units 11 of equal length L can be used to construct a square frame. Accordingly, mass production of the frame unit 11 can be facilitated and the production cost can be reduced.

Alternatively, as shown in FIGS. 6, 7B and 7C of the drawings the coupling connector 12 is a bracket-type connector 12A having a shape complement to the frame arrangement 30 arranged for embracing and connecting two frame units 11. In particular, the coupling connector 12 has a L-shaped structure having two coupling aims 121E, 122E and providing two coupling grooves 123E, 124E through the two coupling arms 121E, 122E respectively for receiving and coupling the two frame units 11.

Alternative positioning arrangements 30 are illustrated in FIGS. 4A to 4G of the drawings. In particular, the positioning arrangement 30 comprises a positioning unit 32 arranged for providing a biasing portion 323 for positioning a sheet-like object onto the frame and a positioning support 31 provided through the frame unit 11 supporting the positioning unit 32.

For example, referring to FIGS. 4A, 4D and 4E of the drawings, the positioning support 31 is a support coupling hole 311 provided on the frame unit 11 and the positioning unit 32 comprises a supporting arm 321 connected to the support coupling hole 311 the frame unit 11 to secure into position and a resilient biasing arm 322 integrally extended from the supporting arm 321 such that the biasing portion 323 is provided through the biasing arm 322 and is arranged for pressing towards the frame unit body 110 of the frame unit 11, thereby a sheet-like object can be positioned onto the frame. As shown in FIGS. 4A and 4D of the drawings, a sheet-like object can be positioned onto the frame through the biasing portion 323 biasing against the sheet-like object towards the frame unit body 110 of the frame unit 11. In other words, a poster can be inserted between the biasing portion 323 and the frame body 110 of the frame unit 11 through the positioning arrangement 30 to secure into position. As shown in FIG. 4E of the drawings, a sheet-like object can be positioned onto the frame through the biasing portion 323 biasing against the sheet-like object. In other words, a poster can be supported and positioned through the biasing portion 323 while the biasing portion 323 is supported by the frame body 110 of the frame unit 11 through the positioning arrangement 30 to secure into position.

As shown in FIG. 4A of the drawings, the supporting arm 321 has a L-shaped structure and the biasing arm 322 has a U-shaped structure. As shown in FIG. 4D of the drawings, the supporting arm 321 has a I-shaped structure and the biasing arm 322 has a U-shaped structure. Preferably, the supporting arm 321 is resilient and bendable for angle adjustment to fit the position of the positioning support 31. For example, the supporting arm 321 may be bent from an I-shaped structure to a L-shaped structure.

As shown in FIG. 4E of the drawings, the supporting arm 321 has a I-shaped structure and the biasing arm 322 has a U-shaped structure while the positioning unit 32 further comprises a handle portion 324 integrally and outwardly extended from the biasing arm 322 for providing a handle for easy gripping and manipulation.

Referring to FIG. 4B and 4C of the drawings, the positioning support 31 is a support coupling through-hole 311A provided on the frame unit 11 and the positioning unit 32 comprises a supporting aim 321 penetrating through and connected to the support coupling through-hole 311A the frame unit 11 to secure into position and a biasing arm 322 integrally extended from the supporting arm 321 such that the biasing portion 323 is provided through the biasing arm 322 and is arranged for pressing towards the frame unit body 110 of the frame unit 11, thereby a sheet-like object can be pressed against the frame body 110 of the frame unit 11 by the biasing portion 323 to secure into position.

As shown in FIG. 4C of the drawings, the supporting arm 321 may further provide a supporting arm lock 3211 to reinforce the connection between the supporting arm 321 and the support coupling through-hole 311A of the positioning support 31 and a handle portion 324 for providing a handle for easy gripping and manipulation.

For example, referring to FIGS. 4F and 4G of the drawings, the positioning support 31 is a support surface 312 on the frame unit body 110 of the frame unit 11 and the positioning unit 32 comprises a supporting arm 321 connected to the support surface 312 of the frame unit 11 to secure into position and a resilient biasing arm 322 integrally extended from the supporting arm 321 such that the biasing portion 323 is provided through the biasing arm 322 and is arranged for pressing towards the supporting arm 321, thereby a sheet-like object can be positioned between the supporting arm 321 and the biasing arm 322 to mount onto the frame. As shown in FIGS. 4F and 4G of the drawings, a sheet-like object can be positioned onto the frame through the biasing portion 323 biasing against the sheet-like object towards the supporting arm 321 which is supported by the frame unit body 110 of the frame unit 11. In other words, a poster can be inserted between the biasing portion 323 and the supporting arm 321 to secure into position on the frame body 110 of the frame unit 11 through the positioning arrangement 30.

Preferably, as shown in FIGS. 4F, 4G, 6, 7A and 7C of the drawings, a guiding slot 3231 is provided between the supporting arm 321 and the biasing arm 322. In particular, the guiding slot 3231 is formed by a straight side 32311 and a curved side 32312. The straight side 32311 is provided through the supporting arm 321 and has a generally flat surface. The curved side 32312 is provided through the biasing arm and has a generally curved surface. The curved side 32312 and the straight side 32311 are overlapped at a first end and are gradually separate to a greater degree towards a second end which is opposite to the first end. In other words, the guiding slot 3231 is constructed to have a width which is gradually decreased from its opening towards its bottom at which the curved side 32312 and the straight side 32311 overlapped with each other, thereby the guiding slot 3231 is capable of guiding an insertion of a sheet-like object entering from its opening which has the greatest width towards its bottom at which the curved side 32312 and the straight side 32311 overlap with each other and provide the biasing portion 323 for securing the sheet-like object into position.

It is worth mentioning that the biasing arm 322 is resilient in nature and therefore a sheet-like object ranging from a thin sheet of paper such as a poster to a thick photo canvas can be mounted onto the frame.

Preferably, as shown in FIGS. 4F and 4G of the drawings, the supporting arm 321 has a L-shaped connecting surface so that the supporting aim 321 can be mounted onto the support surface 312 of two frame units 11 to secure into position.

Preferably, as shown in FIGS. 4G, 6, 7A and 7C of the drawings, the positioning unit 32 further defines a junction portion 325 integrally provided between the biasing arm 322 and the supporting arm 321 which is resilient and flexible to provide a position adjustment for the biasing arm 322 to optimize the positioning of the biasing portion 323.

It is worth mentioning that the positioning arrangement 30 can be integrally constructed onto the frame unit 11. As shown in FIGS. 6 to 7C of the drawings, the positioning arrangement 30 is integrally extended from and provided on the frame arrangement 30. The positioning support 31 is provided by the frame unit body 110 of the frame unit 11 and the positioning unit 32 comprises a supporting arm 321 extended from the frame unit 11 and a resilient biasing arm 322 integrally extended from the supporting arm 321 such that the biasing portion 323 is provided through the biasing arm 322 and is arranged for pressing towards the supporting arm 321, thereby a sheet-like object can be positioned between the supporting arm 321 and the biasing arm 322 to mount onto the frame.

In particular and preferably, as shown in FIGS. 6 to 7C of the drawings, a guiding slot 3231 is provided between the supporting arm 321 and the biasing arm 322. The guiding slot 3231 is formed by a straight side 32311 and a curved side 32312. The straight side 32311 is provided through the supporting arm 321 and has a generally flat surface. The curved side 32312 is provided through the biasing arm and has a generally curved surface. The curved side 32312 and the straight side 32311 are overlapped at a first end and are gradually separate to a greater degree towards a second end which is opposite to the first end. In other words, the guiding slot 3231 is constructed to have a width which is gradually decreased from its opening towards its bottom at which the curved side 32312 and the straight side 32311 overlapped with each other, thereby the guiding slot 3231 is capable of guiding an insertion of a sheet-like object entering from its opening which has the greatest width towards its bottom at which the curved side 32312 and the straight side 32311 overlap with each other and provide the biasing portion 323 for securing the sheet-like object into position.

Referring to FIGS. 1 and 5 of the drawings, the frame may further include at least one mounting strap unit 41 to enhance the central support of the sheet-like object. The strap unit 41 is arranged for mounting onto the rear side 112 of the frame unit body 110. In particular, the strap unit 41 has an elongated strap body 411 having two ends 412, 413 and two strap connecting holes 414, 415 provided at the two ends 412, 413 of the strap unit 41. Accordingly, the strap unit 41 can be connected to the rear side 112 of the frame unit body 110 of the frame unit 11 by a nail, screw of the like.

It is worth mentioning that, as shown in FIG. 5 of the drawings, the strap unit 41 can also be connected to the rear side 112 of the frame unit body 110 of the frame unit 11 by connecting to the positioning unit 32 of the positioning arrangement 30.

One skilled in the art will understand that the embodiment of the present invention as shown in the drawings and described above is exemplary only and not intended to be limiting.

It will thus be seen that the objects of the present invention have been fully and effectively accomplished. It embodiments have been shown and described for the purposes of illustrating the functional and structural principles of the present invention and is subject to change without departure from such principles. Therefore, this invention includes all modifications encompassed within the spirit and scope of the following claims.

Claims

1. A frame for a sheet-like object, comprising:

a frame arrangement comprising a plurality of frame units and coupling connectors; wherein said plurality of frame units are detachably connected by said coupling connectors to form a frame structure for framing the sheet-like object; and

means for positioning and retaining the sheet-like object onto the frame.

2. The frame for a sheet-like object, as recited in claim 1, wherein each of said frame unit body has an elongated construction defining as a front side and a rear side opposite to the front side that the sheet-like object is arranged to be positioned through the rear side of the frame unit body of the frame unit.

3. The frame for a sheet-like object, as recited in claim 2, wherein the plurality of said frame units have a plurality of length provided for selection.

4. The frame for a sheet-like object, as recited in claim 1, wherein the number of said frame units is varied to from different frame structure.

5. The frame for a sheet-like object, as recited in claim 1, wherein said positioning means comprises a clipping arm integrally formed with said frame unit for holding the sheet-like object, and other said frame units have block-like cross sections.

6. The frame for a sheet-like object, as recited in claim 2, wherein each of said coupling connectors comprises a first locking member and a second locking member provided at a first end and a second end of said frame unit body respectively, wherein said first locking member and said second locking member are coupled with each other to lock said frame unit bodies with each other.

7. The frame for a sheet-like object, as recited in claim 6, wherein said second locking member is a receiving cavity and said first locking member is a protruded member arranged for inserting into said receiving cavity.

8. The frame for a sheet-like object, as recited in claim 7, wherein said protruded member has a tapered end portion and an enlarged base portion.

9. The frame for a sheet-like object, as recited in claim 7, wherein said protruded member is rigid and cylindrical in structure.

10. The frame for a sheet-like object, as recited in claim 7, wherein said second locking member is a receiving groove and said first locking member is a protruded member arranged for sliding into said receiving groove.

11. The frame for a sheet-like object, as recited in claim 7, wherein said first locking member is a corner locking member having a L-shaped structure and said second locking member is a receiving cavity.

12. The frame for a sheet-like object, as recited in claim 1, wherein said coupling connector is a bracket-type connector, wherein said coupling connector has a L-shaped structure having two coupling arms, and provides two coupling grooves through said two coupling arms respectively for receiving and coupling said two frame units.

13. The frame for a sheet-like object, wherein said positioning means comprises a positioning arrangement comprising a positioning unit and a positioning support supporting said positioning unit, wherein said positioning unit comprises a supporting arm connecting to said positioning support to secure into position, a biasing arm which is resilient integrally extended from said supporting arm, and a biasing portion provided through said biasing arm.

14. The frame for a sheet-like object, as recited in claim 13, wherein said positioning support is a support coupling hole provided on said frame unit and said supporting arm connected to said support coupling hole to secure into position.

15. The frame for a sheet-like object, as recited in claim 13, wherein said supporting arm is a L-shaped, and said biasing arm is a U-shaped structure.

16. The frame for a sheet-like object, as recited in claim 13, wherein said supporting arm is an I-shaped structure, and said biasing arm is a U-shaped structure.

17. The frame for a sheet-like object, as recited in claim 16, wherein said positioning unit further comprises a handle portion integrally and outwardly extended from said U-shaped biasing arm for providing a handle.

18. The frame for a sheet-like object, as recited in claim 13, wherein said positioning support is a support coupling through-hole provided on said frame unit and said supporting arm is penetrated through and connected to said support coupling through-hole so that said sheet-like object is pressed against said frame body of said frame unit by said biasing portion to secure into position.

19. The frame for a sheet-like object, as recited in claim 18, wherein said supporting arm further comprises a supporting arm lock to reinforce the connection between said supporting arm and said support coupling through-hole and a handle portion for providing a handle.

20. The frame for a sheet-like object, as recited in claim 13, wherein said positioning support is a supporting surface on said frame unit body of said frame unit and said supporting arm is connected to said support surface, wherein said biasing arm is arranged for pressing towards said supporting aim so that said sheet-like object is positioned between said supporting arm and said biasing arm.

21. The frame for a sheet-like object, as recited in claim 20, wherein a guiding slot is formed by a straight side and a curved side is provided between said supporting arm and said biasing arm.

22. The frame for a sheet-like object, as recited in claim 21, wherein said supporting arm is a L-shaped connecting surface so that said supporting arm is mounted onto said support surface.

23. The frame for a sheet-like object, as recited in claim 22, wherein said positioning unit further comprises a junction portion integrally provided between said biasing arm and said supporting arm which is able to provide a position adjustment for said biasing aim to optimize the positioning of said biasing portion.

24. The frame for a sheet-like object, as recited in claim 1, further comprising at least one mounting strap unit to enhance the central support of the sheet-like object, wherein said mounting strap unit further comprises an elongated strap body having two ends and two strap connecting holes provided at said two ends of said mounting strap unit.