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Patent Searching and Data


Title:
FRAME
Document Type and Number:
WIPO Patent Application WO/2015/104023
Kind Code:
A1
Abstract:
A frame (2) for framing a picture/an artwork (4) having a periphery (8) is disclosed. The frame (2) comprises a contact surface (10) provided at the inside (12) of the frame, which frame (2) comprises an opening (14), through which the picture/artwork (4) is mountable. At least one flexible member (6, 6', 6", 6"') extends along at least a portion of the contact surface (10). The at least one flexible member (6, 6', 6", 6"') is provided in such a manner that the flexible member (6, 6', 6", 6"') is configured to securely maintain the picture/artwork (4) within the frame (2) by means of a compression force (F1) and/or a friction force (F2) between the at least one flexible member (6, 6', 6", 6"') and the periphery (8). The flexible member (6, 6', 6", 6"') is compressible. The flexible member (6, 6', 6", 6"') is attached to the frame (2) in such a manner that the flexible member (6, 6', 6", 6"') is restricted from being moved along the width (axis X) of the contact face (10).

Inventors:
VESTERGAARD STIG (DK)
Application Number:
PCT/DK2015/000002
Publication Date:
July 16, 2015
Filing Date:
January 09, 2015
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
PROJECKTMETIER V STIG VESTERGAARD (DK)
International Classes:
A47G1/06
Foreign References:
US5974714A1999-11-02
US20030046849A12003-03-13
US20130086779A12013-04-11
DE29923742U12001-02-15
US4319420A1982-03-16
US20030046849A12003-03-13
Attorney, Agent or Firm:
TROPA APS (1st Floor, Hadsten, DK)
Download PDF:
Claims:
Claims

1. Frame (2) for framing a picture/an artwork (4) having a periphery (8), which frame (2) comprises a contact surface (10) provided at the inside (12) of the frame, which frame (2) comprises an opening (14), through which the picture/artwork (4) is mountable, characterised in that at least one flexible member (6, 6', 6", 6"') is provided at at least a portion of the contact surface (10), where the at least one flexible member (6, 6', 6", 6"') is provided in such a manner that the flexible member (6, 6', 6", 6"') is configured to securely maintain the picture/artwork (4) within the frame (2) by means of a compression force (Fi) and/or a friction force (F2) between the at least one flexible member (6, 6', 6", 6"') and the periphery (8), where the flexible member (6, 6', 6", 6"') is compressible, wherein the flexible member (6, 6', 6", 6"') is attached to the frame (2) in such a manner that the flexible member (6, 6', 6", 6"') is restricted from being moved along the width (axis X) of the contact face (10).

2. Frame (2) according to claim 1, characterised in that the frame (2)is constructed in such a manner that the picture/artwork (4) can be mounted from both sides of the opening (14).

3. Frame (2) according to claim 1 or claim 2, characterised in that a groove (16) is provided in at least a portion of the contact surface (10). 4. Frame (2) according to one of the preceding claims, characterised in that a protrusion (26) is provided in at least a portion of the contact surface (10).

5. Frame (2) according to one of the claim 3 or 4, characterised in that the frame (2) comprises a number of frame members (18, 18', 18", 18"'), and that the at least one flexible member (6, 6', 6", 6"') is attached to one or more (preferably all) of the frame members (18, 18', 18", 18"') by means of a groove (16) and/or a protrusion (26) of a frame member (18, 18', 18", 18"').

6. Frame (2) according to claim 1 , characterised in that the contact surface (10) is plane, and that the at least one flexible member (6, 6', 6",

6"') is attached to the contact surface (10) by means of fastening elements such as glue, nails, screws or staples.

7. Frame (2) according to one of the preceding claims, characterised in that the at least one flexible member (6, 6', 6", 6"') is adapted to fit irregularities or unevenness of the frame (2) and/or the picture/artwork (4)ยท

8. Frame (2) according to one of the preceding claims, characterised in that the at least one flexible member (6, 6', 6", 6"') extends basically along the entire width (along the axis X) of the contact face (10) of the frame member (18, 18', 18", 18"').

9. Frame (2) according to one of the preceding claims, characterised in that two parallel, flexible members (6, 6') extend along the contact surface (10) of each frame member (18, 18', 18", 18"').

10. Frame (2) according to one of the preceding claims, characterised in that the flexible member (6, 6', 6", 6"') is compressible to such an extent that its thickness (T2) can be reduced to less than 80% of the thickness of the flexible member (6, 6', 6", 6"') in an unloaded condition.

1 1. Frame (2) according to one of the preceding claims, characterised in that at least one flexible member (6, 6', 6", 6"') extends along the entire length (along the axis Y) of one or more of the frame members (18, 18', 18", 18"').

12. Frame (2) according to one of the preceding claims, characterised in that the frame (2) comprises a flexible member (6, 6', 6", 6"') attached to the frame (2), where the flexible member (6, 6', 6", 6"') is a one- piece body.

13. Frame (2) according to one of the preceding claims, characterised in that the flexible member (6, 6', 6", 6"') is an elastic band e.g. a rubber band.

14. Frame (2) according to claim 13, characterised in that the flexible member (6, 6', 6", 6"') has a uniform cross-section.

15. Frame (2) according to claim 12 or claim 13, characterised in that the flexible member (6, 6', 6", 6"') is at least partly attached to the frame (2) by means of press fit.

Description:
Frame

Field of invention

The present invention relates to a frame for framing pictures/artworks, such as photographs, posters and canvases.

Prior art

When mounting a picture/artwork into a frame it is possible to apply so- called floater frames which create the illusion that the artwork is "floating" within the frame instead of being covered by it. The "floating illusion" is created by providing a gap between the frame and the edge of the picture/artwork. Typically, a floater frame comprises four L- profiles joined together at the corners of the frame.

The picture/artwork is attached to the back portion of the frame in a manner in which the attachment is not visible from the front side of the frame. It is extremely difficult to mount a picture/artwork in a perfect symmetrical way due to the fact that the person mounting the image has no visual inspection of the front during the mounting process.

Furthermore, successful use of the prior art floater frames requires that the frames and the picture/artwork are a perfect fit. Moreover, it is time-consuming and difficult to mount a picture/an artwork in prior art floater frames which are also rather heavy.

US 2003/0046849 A discloses a carrier frame comprising L-shaped frame members. A plurality of displaceable structures are provided at the inside portion of the frame. This structure is adapted to press against a picture/artwork and hereby generate a force to keep the picture/artwork in place within the frame. In order to mount a picture/artwork in the frame, the plurality of displaceable structures at each frame member must be displaced at the same time. This is very difficult in practice. Moreover, the picture/artwork can only be mounted to the frame from one side.

Thus, there is a need for a frame which enables an easier and more user-friendly mounting of a picture/an artwork and which reduces or even eliminates the above-mentioned disadvantages of the prior art.

Accordingly, it is an object of the present invention to provide a frame that is easy and fast to use for the purpose of mounting a picture/artwork.

Moreover, it is an object of the present invention to provide a frame in which it is possible to mount a picture/an artwork from both sides of the frame.

Furthermore, it is an object of the present invention to provide a frame adapted to fit pictures of different thicknesses and sizes.

It is also an object of the present invention to provide a frame that is lighter than the prior art floater frames.

Summary of the invention

The object of the present invention can be achieved by a frame as defined in claim 1. Preferred embodiments are defined in the dependent sub claims, explained in the following description and illustrated in the accompanying drawings.

The frame according to the invention is a frame for framing a picture/an artwork having a periphery, which frame comprises a contact surface provided at the inside of the frame, which frame comprises an opening through which the picture/artwork is mountable, wherein at least one flexible member extends along at least a portion of the contact surface, where the at least one flexible member is provided in such a manner that the flexible member is configured to securely maintain the picture/artwork within the frame by means of a compression force and/or a friction force provided between the at least one flexible member and the periphery, wherein the flexible member is attached to the frame in such a manner that the flexible member is restricted from being moved along the width of the contact face.

Hereby, it is possible to provide a frame that is easy and fast to use for the purpose of mounting a picture /an artwork.

Furthermore, the invention makes it possible to provide a frame adapted to fit pictures of different thicknesses and sizes. Moreover, it is possible to provide a simpler and lighter frame than the prior art floater frames.

The invention makes it possible to frame a picture/an artwork in a manner in which the picture/artwork is centrally positioned within the frame.

Since the flexible member is attached to the frame in such a manner that the flexible member is restricted from being moved along the width (axis X) of the contact face, the position of the picture/artwork may be adjusted along the width of the frame members (along the axis X in Fig. 2) in a manner in which the flexible member is kept attached to the frame.

Accordingly, the picture/artwork can be positioned in such a manner that the front side of the frame and of the picture/artwork are aligned in order to create the illusion that the picture/artwork is "floating" within the frame. It is also possible to mount the picture/artwork deeper within the frame in order to be able to mount a glass plate in front of the picture/artwork.

In case that the frame is wider than the picture/artwork, the picture/artwork may be arranged between the back side and the front side periphery of the frame in order to protect the picture/artwork during transportation or storage. In that way, adjacent pictures/artworks are prevented from getting into direct contact with each other.

The at least one flexible member also protects the picture/artwork if the frame is accidently dropped as the flexible member may be shock- absorbing and thus may reduce or eliminate damage to the picture/artwork.

Furthermore, the frame according to the invention is easy to reuse due to its simplicity and user-friendliness.

By the term picture/artwork is meant an object to be framed. Such object may be a canvas, a photograph, a poster, a plate with a self- made motif or a three-dimensional work of art.

The contact surface is the part of the frame facing the picture/artwork and to which the flexible member is attached.

The flexible member may cover the contact surface in part or completely.

The flexible member is compressible to such an extent that it can adapt to fit (small) variations in the contact surface of the frame or the periphery of the picture/artwork. In a preferred embodiment according to the invention the flexible member creates a gap of approximately 5 mm between the inside of the frame members and the periphery of the picture/artwork. The flexible member is configured to exert a radial force (and thus a pressure) or a friction force against the picture/artwork in that way maintaining the picture/artwork in its position within the frame.

Small variations (notches and protrusions) may be within e.g. 0.1 - 15 mm, such as 0.2 - 5 mm for small pictures (e.g. pictures of 20 cm x 20 cm); whereas small variations may be e.g. 1-20 mm such as e.g. 2 -10 mm for large pictures (e.g. 100 cm x 100 cm). The flexible member may fit the frame and the picture even if small variations are present.

Loaded conditions are present when a force is exerted against the flexible member, while unloaded conditions are present when no force is applied.

It may be an advantage that the frame is constructed in such a manner that the picture/artwork can be mounted from both sides of the opening.

It may be possible to apply both sides of the frame, and one can turn the frame in order to change the colour or visual expression of the frame.

It may be advantageous that a groove is provided in at least a portion of the contact surface.

Hereby, it is possible to attach the flexible member in the groove. Accordingly, a simple and reliable attachment may be achieved.

It may be beneficial that a protrusion is provided in at least a portion of the contact surface. It is possible to attach the flexible member by means of the protrusion.

It may be an advantage that the frame comprises a number of frame members, and that the at least one flexible member is attached to one or more (preferably all) of the frame members by means of a groove and/or a protrusion of a frame member.

Hereby, it is easy to ensure an accurate position of the at least one flexible member on the contact surface. Further, it is easy to attach or replace the flexible member.

It may be an advantage that the contact surface is plane and that the at least one flexible member is attached to the contact surface by means of fastening elements such as glue, nails, screws or staples.

Hereby, a reliable and solid attachment of the frame member and the at least one flexible member is achieved. The joint is capable of resisting a force of a certain magnitude.

The flexible member, which may be a rubber band, may be configured to absorb impact in case the picture /artwork is exposed to mechanical stress e.g. if the picture is accidently dropped on the floor. It may be an advantage that the at least one flexible member is adapted to fit irregularities or unevenness of the frame and/or the picture/artwork.

Hereby, the frame may be used even if irregularities or unevenness are present on the frame and/or the picture/artwork. A smooth transition between the frame and the picture can be achieved.

Irregularities or unevenness may be small variations (notches and protrusions) between e.g. 0.1 - 15mm, such as 0.2 - 5 mm for small pictures (e.g. pictures of 20 cm x 20 cm). The flexible member may be configured to fit a picture or a frame with even larger variations of e.g. 1 - 20 mm, such as 2 - 10 mm if the picture is large (e.g. 100 cm x 100 cm). Irregularities or unevenness may be present in the corner structures on a canvas

It may be advantageous that the at least one flexible member extends basically along the entire width (along the axis X) of the contact surface of the frame member.

Hereby, it is possible to adjust the position of the picture/artwork along the entire width of the frame members. This solution is flexible and user- friendly.

A frame according to the invention may be used to frame two pictures/artworks at the same time. One picture/artwork may be mounted from one side of the frame while another picture/artwork may be mounted from the other side of the frame. Accordingly, one can have access to another image just by turning the frame if it is mounted on a wall. If the frame is hanging from a ceiling it is possible to display two pictures/artworks at the same time by means of the frame according to the invention.

It may be an advantage that two parallel flexible members extend along the contact surface of each frame member.

Hereby, it is possible to adjust the position of the picture/artwork along the width of the frame members. Furthermore, it is possible to apply two different materials with different mechanical properties or to use flexible members of different colours. It may be advantageous that the flexible member is compressible to such an extent that the thickness of the flexible member can be reduced to less than 80% of the thickness of the flexible member in an unloaded condition.

Hereby, the flexible member may "level out" or fit the unevenness of the contact surface of the frame or of the periphery of the picture/artwork.

It may be beneficial that at least one flexible member does not extend along the entire length (along the axis Y) of one or more of the frame members. The flexible member may by way of example be positioned on the central portion of the frame members and extend along about half the length of the frame members. Hereby, it is possible to reduce costs by reducing the use of flexible members. Moreover, it may be easier to mount and dismount the picture/artwork from the frame. Furthermore, it is possible to create an effect by providing a gap between the frame and the periphery of the picture/artwork.

It may be an advantage that the frame comprises a flexible member attached to the frame, where the flexible member is a one-piece body.

Hereby, it is possible to provide a simple solution that is easy to mount e.g. in a groove structure. It is possible to conceal the arched portions of the flexible member that will present in the corner regions.

It may be beneficial that at the flexible member is an elastic band e.g. a rubber band.

The use of an elastic rubber band may be combined with the use of a groove structure with a corresponding geometry (adapted to receive and maintain the rubber band). Rubber bands may be provided in any required thickness, width and quality.

It may be beneficial that the flexible member has a uniform cross section.

Hereby, it is easier to mount the flexible member in a groove extending along the length of the frame members.

It may be an advantage that the flexible member is at least partly attached to the frame by means of press fit. Accordingly, the flexible member can be attached to the frame in a fast and easy manner. Press fit may be combined with use of other fastening means such as glue by way of example.

Description of the Drawings

The invention will become more fully understood from the detailed description given herein below. The accompanying drawings are given by way of illustration only, and thus, they are not limitative of the present invention. In the accompanying drawings:

Fig. 1 shows schematic views of a frame according to the invention;

Fig. 2 schematically shows different views of a frame member provided with a groove;

Fig. 3 shows different frame members according to the invention;

Fig. 4 shows a frame member provided with a barbed protrusion;

Fig. 5 shows different embodiments of a frame according to the invention;

Fig. 6 shows a frame in which the flexible member does not extend along the total length of the frame members:

Fig. 7 shows two frame members with flexible members during loaded and unloaded conditions

Fig. 8 illustrates a number of different frame members according to the invention and

Fig. 9 illustrates two additional frame members according to the invention.

Detailed description of the invention

The detailed description set forth below in connection with the appended drawings is intended as a description of various configurations. The detailed description includes specific details for the purpose of providing a thorough understanding of various concepts. However, it will be apparent to those skilled in the art that these concepts may be practiced without these specific details. In the following, identical or corresponding elements will have the same reference numbers.

Fig. 1 A illustrates a square frame 2 comprising four frame members 18, 18', 18", 18"'. One flexible member 6, 6', 6", 6"' is attached to each of the frame members 18, 18', 18", 18"'. The flexible members 6, 6', 6", 6"' extend along the entire length of the frame member 18, 18', 18", 18"' to which they are attached.

A picture/an artwork 4 is mounted in the frame 2. The four flexible member 6, 6', 6", 6"' are compressed by the picture/artwork 4. Hereby, a force Fi is exerted towards the picture/artwork 4. The force Fi is capable of maintaining the picture/artwork 4 within the frame 2.

Fig. IB illustrates how to insert a flexible member 6' to the contact surface of the inside 12 of the frame 2. When the flexible member 6' has been attached to the contact surface of the inside 12 of the frame 2, the flexible member 6' extends along the entire length of the inside 12 of the frame member 18'. Fig. 1 C illustrates how a flexible member 6' can exert a force Fj radially and/or a friction force F 2 axially to the periphery 8 of the picture/artwork 4, respectively, when the picture/artwork has been mounted within the frame 2 through its opening 14.

The force F x secures that the picture/artwork 4 is kept in the central area within the frame 2. Thus, the force Fi secures the position of the picture/artwork 4 along the length of the frame members of the frame 2. The force F 2 secures that the picture/artwork 4 is. kept in place and thus is not displaced out of the frame 2. The thickness T of flexible member 6' is indicated in Fig. 1 C.

Fig. 2 A illustrates an embodiment of a frame member 18 according to the invention. The frame member 18 comprises a flexible member 6 which does not cover the entire contact surface 10 (along the axis X). The flexible member 6 is attached to the frame member 18. The flexible member 6 is shaped with an arched profile 24. The arched profile 24 extends along the contact surface 10 and is configured to receive and abut the periphery of the picture/artwork to be framed by means of a frame comprising the frame member 18. The contact surface 22 between the flexible member 6 and the frame member 18 is plane and smooth.

Fig. 2 B, Fig. 2 C and Fig. 2 D illustrate a cross-sectional view of a frame member 18 joint with a flexible member 6 by means of a groove 16 provided in the frame member 18 (see Fig. 2 D).

The flexible member 6 is provided with a protrusion 20 (see Fig. 2 C) fit and shaped to be received by the groove 16. It may be an advantage to provide a protrusion 20 that is slightly larger (e.g. 0.1-5mm) than the groove 16 in order to secure the most optimal fit between the protrusion 20 and the groove 16. Fig. 3 A illustrates a frame member 18 provided with two parallel flexible member 6, 6' attached to the frame member 18 by means of two parallel grooves 16, 16'. Fig. 3 B illustrates a frame 18 provided with a flexible member 6 having an arched upper surface. The flexible member 6 extends along the entire axis X (width) of the frame member 18. Accordingly, the flexible member 6 covers the entire contact surface 10 of the frame member 18. The flexible member 6 is provided with a protrusion that is received by a corresponding groove provided in the frame member 18.

Fig. 3 C illustrates a frame member 18 comprising a flexible member 6 with a rectangular shape. The flexible member 6 extends along the entire width (along the axis X) of the frame member 18. The flexible member 6 is provided with a protrusion that is received by a corresponding groove provided in the frame member 18.

Fig. 4 A and Fig. 4 B illustrate a frame member 18 provided with a barbed protrusion 26. The protrusion 26 is provided with barbs 30, 30' and is arranged centrally at the contact surface 10 of the frame member 18. The flexible member 6 is attached to the barbed protrusion 26. The barbs 30, 30' improve the fixation of the flexible member 6 and the protrusion 26. The flexible member may be provided with another geometry fit to be received by the protrusion 26.

Fig. 5 A, Fig. 5 B and Fig. 5 C illustrate differently shaped frames 2. All three embodiments comprise at least one frame member 18 and at least one flexible member 6. Fig. 5 A illustrates a circular frame 2, Fig. 5 B illustrates a hexagonal frame 2, while Fig. 5 C illustrates an oval frame 2.

Fig. 6 illustrates a frame 2 according to the invention. The frame 2 comprises four flexible members 6, 6', 6", 6"'. Three of the flexible members 6, 6", 6"' do not extend along the entire length of the frame members 18, 18", 18"' to which they are attached. Even though these flexible members 6, 6", 6"' do not extend along the entire length of the frame members 18, 18", 18"', they are capable of maintaining the picture/artwork 4 firmly within the frame 2.

Fig. 7 A illustrates a first frame member 18 of a frame according to the invention. The first frame member 18 has a rectangular cross-sectional area. A groove is provided in the central portion of the contact surface 10 of the frame member 18.

A flexible member 6 (e.g. a rubber band) is attached to the groove of the frame member 18. The flexible member 6 extends to the first edge 32 of the frame member 18. The flexible member 6 does not extend to the second edge 34 of the frame member 18. Fig. 7 A shows that the flexible member 6 does not extend along the entire width 36 of the frame member 18. The flexible member 6 is unloaded (no force is applied to it) and the thickness of the part of the flexible member provided above the contact surface 10 is T 2 .

Fig. 7 B illustrates the frame member 18 shown in Fig. 7 A. The flexible member 6 of the frame member 18 is shown in a loaded condition (a force is applied to it). Accordingly, the thickness of the part of the flexible member 6 that is provided above the contact surface 10 is Ti. The part of the flexible member 6 provided above the contact surface 10 is compressed to such an extent that its thickness T x is reduced significantly (with approximately 50%) compared with the thickness T 2 during unloaded conditions (see Fig. 7 A).

The scenario illustrated in Fig. 7 B will occur when a picture/artwork is arranged in a frame provided with the illustrated frame members 18. The periphery of the picture/artwork will compress the flexible member 6 and thus reduce the thickness Ti of the flexible member 6.

Fig. 7 C illustrates a frame member 18' corresponding to the one illustrated in Fig. A and Fig. 7 B. The frame member 18' is provided with a groove into which groove a flexible member 6' is attached. The flexible member is unloaded (no forces is applied to it). The thickness of the part of the flexible member provided above the contact surface 10' is T 4 .

The frame member 18' has a rectangular, cross-sectional area. A groove is provided in the central portion of the contact surface 10' of the frame member 18'. The flexible member 6' extends to the first edge 32 of the frame member 18'. The flexible member 6' does not extend to the second edge 34 of the frame member 18'. Fig. 7 C shows that the flexible member 6' does not extend along the entire width 36 of the frame member 18'.

Fig. 7 D illustrates the frame member 18' shown in Fig. 7 C. The flexible member 6' of the frame member 18' is shown in a loaded condition (a force is applied to it). Accordingly, the thickness of the part of the flexible member 6' provided above the contact surface 10' is T 3 .

The part of the flexible member 6' provided above the contact surface 10' is compressed to such an extent that its thickness T 3 is reduced significantly (with approximately 50%) compared with the thickness T 4 during unloaded conditions (see Fig. 7 C).

The scenario illustrated in Fig. 7 D will occur when a picture/artwork is arranged in a frame provided with the illustrated frame members 18'. The periphery of the picture/artwork will compress the flexible member 6' and thus reduce the thickness T 3 of the flexible member 6'.

Fig. 8 illustrates a number of different frame members 18 according to the invention.

Fig. 8 A illustrates a frame member 18 having a square cross section. A flexible member 6 having a basically rectangular cross section is attached to the contact surface 10 of the frame member 18. The flexible member 6 extends along the entire width 36 of the frame member 18.

Fig. 8 B illustrates a frame member 18 having a rectangular cross section. A flexible member 6 having a rectangular cross section is attached to the contact surface 10 of the frame member 18. The flexible member 6 extends along the main portion (approximately 85%) of the width 36 of the frame member 18.

Fig. 8 C illustrates a frame member 18 having a rectangular cross section. A flexible member 6 having an arced profile is attached to the contact surface 10 of the frame member 18. The flexible member 6 extends along the main portion (approximately 80%) of the width 36 of the frame member 18.

Fig. 8 D illustrates a frame member 18 having a rectangular cross section. A flexible member 6 having an arced profile is attached to the contact surface 10 of the frame member 18. The flexible member 6 extends along the entire width 36 of the frame member 18.

Fig. 8 E illustrates a frame member 18 having a rectangular cross section. A hollow flexible member 6 having a rectangular cross section is provided with a cavity 40 is attached to the contact surface 10 of the frame member 18. The flexible member 6 extends along the main portion (approximately 80%) of the width 36 of the frame member 18.

Fig. 8 F illustrates a frame member 18 having a rectangular cross section. A flexible member 6 having a rectangular cross section is attached to the contact surface 10 of the frame member 18 by means of two portions of glue 38, 38'. The flexible member 6 extends along the main portion (approximately 80%) of the width 36 of the frame member 18. Fig. 8 G illustrates a frame member 18 having a rectangular cross section. A flexible member 6 having a rectangular cross section is attached to the contact surface 10 of the frame member 18 by means of one large portion of glue 38. The flexible member 6 extends along the main portion (approximately 80%) of the width 36 of the frame member 18.

Fig. 9 A illustrates a frame member 18 having a rectangular cross section. The frame member 18 is provided with a groove 16 having a semi-circular cross section. A flexible member 6 having a circular cross section is provided above the groove 16 and above the contact surface 10 of the frame member 18. The flexible member 6 is shaped to be received by the groove 16 provided within the frame member 18. Glue may be used to attach the flexible member 6 to the frame member 18. Fig. 9 B illustrates a frame member 18 having a rectangular cross section. The frame member 18 is provided with a groove 16 having a semi-circular cross section. A flexible member 6 having a rectangular cross section is provided with a protrusion 20 having a semi-circular cross section. The flexible member 6 is provided above the groove 16 and above the contact surface 10 of the frame member 18. The protrusion 20 of the flexible member 6 is shaped to be received by the groove 16 provided within the frame member 18. Glue may be used to attach the flexible member 6 to the frame member 18.

List of reference numerals

2 Frame

4 Picture/artwork

6, 6', 6", 6"' Flexible member

8 Periphery

10, 10' Contact surface

12 Inside (of the frame)

14 Opening

16 Groove

18, 18', 18", 18"' Frame member

20 Protrusion

22 Contact surface

24 Arced profile

26 Protrusion

28 Groove

30, 30' Barb

32, 34 Edge

36 Width

38, 38' Glue/adhesive

40 Cavity

B Width

b Width

Fi Force

F 2 Friction force

T, Ti, T 2 , T 3 , T 4 Thickness

X Axis

Y Axis