GB2257041A - Fixing frame backing - Google Patents
Fixing frame backing Download PDFInfo
- Publication number
- GB2257041A GB2257041A GB9214087A GB9214087A GB2257041A GB 2257041 A GB2257041 A GB 2257041A GB 9214087 A GB9214087 A GB 9214087A GB 9214087 A GB9214087 A GB 9214087A GB 2257041 A GB2257041 A GB 2257041A
- Authority
- GB
- United Kingdom
- Prior art keywords
- tab
- frame
- point
- barb
- backing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000002184 metal Substances 0.000 claims abstract description 7
- 239000000463 material Substances 0.000 abstract description 8
- 230000015572 biosynthetic process Effects 0.000 abstract description 3
- 238000005755 formation reaction Methods 0.000 abstract description 3
- 239000004033 plastic Substances 0.000 abstract description 3
- 229920003023 plastic Polymers 0.000 abstract description 3
- 239000002023 wood Substances 0.000 abstract description 2
- 238000009432 framing Methods 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 235000013290 Sagittaria latifolia Nutrition 0.000 description 1
- 229920002522 Wood fibre Polymers 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 235000015246 common arrowhead Nutrition 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000012780 transparent material Substances 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47G—HOUSEHOLD OR TABLE EQUIPMENT
- A47G1/00—Mirrors; Picture frames or the like, e.g. provided with heating, lighting or ventilating means
- A47G1/06—Picture frames
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47G—HOUSEHOLD OR TABLE EQUIPMENT
- A47G1/00—Mirrors; Picture frames or the like, e.g. provided with heating, lighting or ventilating means
- A47G1/06—Picture frames
- A47G2001/0677—Picture frames having means for fixing the picture or backing to the frame, e.g. clips, nails or the like
Landscapes
- Mirrors, Picture Frames, Photograph Stands, And Related Fastening Devices (AREA)
Abstract
A bendable tab 14 for fixing a backing 13 in a picture frame 16 comprises a soft metal tab having a point 15 subtending an angle of about 70 DEG . One pair or plurality of pairs of barbs are provided behind the point 15, each barb 18 comprising a corner 19 and a substantially right-angled undercut. An outward taper behind the barb leads to the full width of the metal tab 14. The tab 14 can be fired using a fixing gun or applied manually and the barb formations cause the point to embed firmly in the wood or plastics material of the frame 16. <IMAGE>
Description
FIXING FRAME BACKING
This invention relates to the fixing of frame backings in the framing of pictures, mirrors and photographs for example.
The invention may find particular use for non-permanent framing of articles such as photographs. Permanently framed pictures are often sealed into their frames by means of tape.
However, commercially sold photographic frames have backings non-permanently secured so that a purchaser can remove any display picture within the frame and mount a chosen substitute.
However, commercially pre-framed pictures, mirrors and the like may be framed using the same method.
It is conventional practice to take the basic frame and insert the glass, a picture, and then a backing sheet of card or board which is held in place by bendable tabs applied by a manual tool or fired into the frame by means of a pneumatic power tool. These bendable tabs are made of thin and relatively soft metal and initially bend forward against the backing sheet. In order to remove the picture from the frame, the tabs are prised back so that the backing sheet and picture can be removed and replaced.
However, conventional tabs merely have a shallow pointed end which is fired into the material of the frame. On bending the tabs to remove the backing sheet at a later time, it is very easy to dislodge them. This is particularly the case if the tabs have not been inserted exactly at right angles to the frame edge. Bending the tab rearwardly then tends to lever the point out of the frame material, leaving the picture and backing unsupported at that point.
It is an object of the present invention to provide a more secure bendable tab.
According to the invention there is provided a bendable tab for fixing a frame backing, the tab comprising an elongate soft metal strip having a point at its forward end and a pair of barbs formed in its side edges adjacent the point. More than one pair of barbs may be provided.
Each barb may comprise a corner and a substantially rightangled undercut.
The point may subtend an angle of about 700.
An embodiment of the invention will now be described in more detail by way of example only with reference to the accompanying drawing, which is a scrap perspective view of a portion of a picture frame, partly broken away.
The drawing shows a portion of a picture frame in use. The frame is formed of lengths of framing material 10 secured together at the corners in generally known manner. A sheet of glass or other transparent material 11 is inserted, followed by a picture 12 to be framed and a backing sheet 13 of card or board. The assembly is then secured into the frame 10 by means of a plurality of flexible tabs according to the invention as shown at 14. These tabs are fired into the material of the frame 10 so as to overlie the backing 13 when bent forwardly against the backing. In order to remove the picture 12 to be changed, the visible portion of the bendable tab 14 is bent rearwardly and the backing and picture can then be removed.
The tab itself has a pointed end 15 subtending an angle of about 700, which enables it to be driven readily into the material, typically wood or plastics, of the frame 10 at the junction between the main rear surface 16 of the frame and a step 17 which lies approximately flush with the backing sheet 13.
Behind the point 15 a pair of barbed formations 18 are provided in the opposite side edges of the tab, which is of relatively soft metal capable of being bent by manual pressure.
Each barb 18 comprises a corner 19 and a substantially rightangled undercut. An outward taper behind the barb leads to the full width of the metal tab.
The barbs 18 cause the point to embed firmly in the material of the frame 10 so that the wood fibres or cellular plastics of the frame close around the barb, after the fashion of an arrow head. Additionally, in driving the tab into the material of the frame, the corners 19 immediately in front of the right-angled undercut barbs tend to flex slightly inwardly, giving a very firm fixing as they return to their normal position.
It has been found that the use of a barbed point such as that illustrated ensures that the tab is very securely fixed, even where it is inserted at a slight angle to the junction 20 between the main surface 16 of the back of the frame 10 and the step 17.
Although only one pair of barbed formations is shown in the illustrated embodiment, it should be appreciated that two or more pairs could be provided and that the proportions of length to width of the tab might be varied to suit particular circumstances.
Claims (8)
1. A bendable tab for fixing a frame backing, the tab comprising an elongate soft metal strip having a point at its forward end and a pair of barbs formed in its side edges adjacent the point.
2. A tab according to Claim 1 wherein a plurality of pairs of barbs are provided.
3. A tab according to Claim 1 or Claim 2 wherein each barb comprises a corner and a substantially right-angled undercut.
4. A tab according to any preceding claim wherein an outer taper is provided behind each barb.
5. A tab according to any preceding claim wherein the point subtends an angle of about 700.
6. A frame having a backing fixed by a plurality of bendable tabs according to any preceding claim.
7. A bendable tab substantially as hereinbefore described with reference to and as illustrated in the accompanying drawing.
8. A frame backing fixed by a plurality of bendable tabs substantially as hereinbefore described with reference to and as illustrated in the accompanying drawing.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB919114423A GB9114423D0 (en) | 1991-07-03 | 1991-07-03 | Fixing frame backing |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| GB9214087D0 GB9214087D0 (en) | 1992-08-12 |
| GB2257041A true GB2257041A (en) | 1993-01-06 |
| GB2257041B GB2257041B (en) | 1994-09-14 |
Family
ID=10697790
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB919114423A Pending GB9114423D0 (en) | 1991-07-03 | 1991-07-03 | Fixing frame backing |
| GB9214087A Expired - Fee Related GB2257041B (en) | 1991-07-03 | 1992-07-02 | Fixing frame backing |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB919114423A Pending GB9114423D0 (en) | 1991-07-03 | 1991-07-03 | Fixing frame backing |
Country Status (1)
| Country | Link |
|---|---|
| GB (2) | GB9114423D0 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013134826A1 (en) * | 2012-03-14 | 2013-09-19 | Garmond Pty Ltd | A retainer member for a picture frame |
-
1991
- 1991-07-03 GB GB919114423A patent/GB9114423D0/en active Pending
-
1992
- 1992-07-02 GB GB9214087A patent/GB2257041B/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013134826A1 (en) * | 2012-03-14 | 2013-09-19 | Garmond Pty Ltd | A retainer member for a picture frame |
Also Published As
| Publication number | Publication date |
|---|---|
| GB2257041B (en) | 1994-09-14 |
| GB9114423D0 (en) | 1991-08-21 |
| GB9214087D0 (en) | 1992-08-12 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 732E | Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977) | ||
| PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 19960702 |