CA1157644A - Corner-connecting appliance for picture frames - Google Patents
Corner-connecting appliance for picture framesInfo
- Publication number
- CA1157644A CA1157644A CA000343660A CA343660A CA1157644A CA 1157644 A CA1157644 A CA 1157644A CA 000343660 A CA000343660 A CA 000343660A CA 343660 A CA343660 A CA 343660A CA 1157644 A CA1157644 A CA 1157644A
- Authority
- CA
- Canada
- Prior art keywords
- mouldings
- angle
- tongues
- stiffening plate
- tongue
- 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.)
- Expired
Links
Landscapes
- Mirrors, Picture Frames, Photograph Stands, And Related Fastening Devices (AREA)
Abstract
ABSTRACT OF THE DISCLOSURE
A picture frame is provided comprising mouldings which have tongues projecting rearwardly and in the longitudinal dir-ection of the frame. In cross-section, the tongues are uniform and substantially rectangular and which tongues form at least one groove and which mouldings have a 45° mitre at the respective ends. Angle jointing units are provided for connecting the mouldings together at right angles one to another, each of which angle jointing units has a plate having at least two straight edges disposed at right angles to each other. Near each of the edges there is at least one outwardly projecting tongue corres-ponding to the groove on the mouldings, the tongues on the plate being dimensioned so that when connecting the mouldings, by pressing home, the angle jointing units applied from the rear of the frame in each corner, the adjacent ends of the mouldings are joined together by a friction grip between the angle jointing units and the mouldings.
A picture frame is provided comprising mouldings which have tongues projecting rearwardly and in the longitudinal dir-ection of the frame. In cross-section, the tongues are uniform and substantially rectangular and which tongues form at least one groove and which mouldings have a 45° mitre at the respective ends. Angle jointing units are provided for connecting the mouldings together at right angles one to another, each of which angle jointing units has a plate having at least two straight edges disposed at right angles to each other. Near each of the edges there is at least one outwardly projecting tongue corres-ponding to the groove on the mouldings, the tongues on the plate being dimensioned so that when connecting the mouldings, by pressing home, the angle jointing units applied from the rear of the frame in each corner, the adjacent ends of the mouldings are joined together by a friction grip between the angle jointing units and the mouldings.
Description
W079/00054 ilS7~ ~4 PCT/SE78/00003 Procedure for making angle joints and angle jointin~ unit .
_ lcture frames.
~his invent~on deals with a method for jointing the corners of picture frames built up of mouldings or similar pro-filed strips or edgings ( hereinafter referred to as mouldings) with the usual 45 mitre at the ends, which are jointed to each other at right angles with the ald of a special angle jointing unit.
The inventlon also deals with the angle j'ointing unit whlch is used when applying the procedure.
The invention is intended for use in particular when framing paintings, graphic works, photographs, posters and other printed matter.
Several different methods for manufacturing frames, which are built up of mouldings with the aid of various angle , jointing units intended to lock the strip ends at an angle of 90, are known. As a rule, the mouldings are die-cast of plastic or metal or are manufactured of metal in some other way. Frame models of this type also generally permit the object which is to be framed, e.g. a painting or an etching with a covering sheet of glass, to ,be fixed in position in a rapid and'~simple means without needing to use e.g. a hammer and nails. A screwdriver is, however, usual,ly necessary. Despite their generally acknowledged advantages, most known framing methods are, however, so complicated that they cannot compete, e.g. in price, with conventlonal, simple frame models manufactured manually in trade shops, even if the original idea behind these solutions was to make it possible for the consumer to carry out the framing work himself. A certain disproportion occurs particularly when framing various prints, photographs and amateur art since the frames may cost many times the value of the ohject which is to be framed.
~ ,~
i7~ ~4
_ lcture frames.
~his invent~on deals with a method for jointing the corners of picture frames built up of mouldings or similar pro-filed strips or edgings ( hereinafter referred to as mouldings) with the usual 45 mitre at the ends, which are jointed to each other at right angles with the ald of a special angle jointing unit.
The inventlon also deals with the angle j'ointing unit whlch is used when applying the procedure.
The invention is intended for use in particular when framing paintings, graphic works, photographs, posters and other printed matter.
Several different methods for manufacturing frames, which are built up of mouldings with the aid of various angle , jointing units intended to lock the strip ends at an angle of 90, are known. As a rule, the mouldings are die-cast of plastic or metal or are manufactured of metal in some other way. Frame models of this type also generally permit the object which is to be framed, e.g. a painting or an etching with a covering sheet of glass, to ,be fixed in position in a rapid and'~simple means without needing to use e.g. a hammer and nails. A screwdriver is, however, usual,ly necessary. Despite their generally acknowledged advantages, most known framing methods are, however, so complicated that they cannot compete, e.g. in price, with conventlonal, simple frame models manufactured manually in trade shops, even if the original idea behind these solutions was to make it possible for the consumer to carry out the framing work himself. A certain disproportion occurs particularly when framing various prints, photographs and amateur art since the frames may cost many times the value of the ohject which is to be framed.
~ ,~
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The main purpose of the invention has been to achieve a simple frame construction which almost anyone can manufacture in a simple and rapid manner and which is also extremely cheap to manufacture. At the same time, the aim has also been to permit the picture or corresponding object to be fixed in a simple and rapid manner to the frame and, when necessary, to dismantle the frame or replace the picture or corresponding object in the frame with another picture or object.
The procedure according to the invention is mainly characterized by the fact that the frames are built up of a moulding which has, at the rear of the picture, at least one groove or tongue in the longitudinal direction and that the angle unit has at least one corresponding tongue or groove respectively for these and that the frame is jointed by pressing in the angle units from the rear of the frame at each corner of the frame, whereupon the angle units lock the adjacent end of the moulding at the correct angle with the aid of tongue-and-groove joints.
The angle unit according to the invention is mainly characterized by the fact that it consists of a stiffening plate or suchlike with at least two straight edges at right angles to each other and at least one tongue (groove) along these edges in all essentials at right angles to the plane which is deter- -mined by the stiffening plate.
In one aspect of the present invention, there is pro-vided a picture frame comprising mouldings~which on the rear have at least one groove in the longitudinal direction and a 45 mitre at the ends, and which are jointed together at right angles with the aid of a ~eparate angle jointing unit which consists of a stiffening plate having substantially the form of the letter "A"
with the tip broken off, the two limbs of which each comprises at least one tongue along its length at right angle to the tongue of the other limb and substantially at right angle to the plane determined by the stiffening plate,- the at least one tongue on the stiffening plate being dimensioned so that when connecting the mouldings by pressing home the angle jointing units from the rear of the frame in each corner, the adjacent ends of mouldings are joined together with a friction grip between the angle jointing units and the mouldings.
.
., . .
.
- ~ . .
:
~ 4 -2a-The invention is described in more detail in the following text by means of references to the enclosed drawing and a number of schematically indicated design examples for the invention.
Fig. 1 shows an angle joint according to the invention seen from the rear of the frame, Figs. 2 and 3 show a section along the lines II-II and III-III respectively in Fig. 1.
Figs. 4 and 6 show two other angle joints seen in the same manner; Fig. 5 shows a section along the line V-V in Fig. 4 and Fig. 7 shows a section along the line VII-VII in Fig.
.
.
' : ~ .- .
:
' ~, `.
WO~9/00054 li~76'-*4 PCT/SE78Jo0003 Fig. 8 shows a number of mouldings to which the invention can be applied.
Figs. 9 and 10 showa model,of the angle jointing unit according to the invention ln two different projections.
In the design according to Figs.1-3, moulding 1 is used with two longitudinal grooves into which the tongues 6 on the angle jointing unit 2 are inserted. Angle jointlng '' unit 2 has a square stiffening plate ~. The tongues 6 follow the outer edges of the stiffening plate. Stiffening plate 5 at the same time constitutes the carcass on the angle unit and joins the tongues 6 of the angle unit firmly to each other at''an angle of gob.
In Figs.4 and 5, moulding 1 has only one groove and,stiffening plate 5 on angle unit 2 has the form of an equilateral right-an~le triangle. In a manner corresponding to this moulding, the edge of stiffening plate 5 has only one tongue 6.
In the design according to Figs.6 and 7, stiffening plate 2 is reminiscent of the letter A with the t~p broken off and has two tongues 6 at the outer edges for corre-sponding grooves in the moulding. This'design is character-ized ~y the fact'that the moulding walls havQ a recess 3 into which part 2 on stiffening plate 2 fits precisely.
This gives an extremely sturdy and reliable angle joint.
Part 2' has holes 4 which can be used when hanging the pibture with the aid of:cord or suchlike.
Fig..8 shows a number of moulding types which can be used when applying the invention. ~aturally, many other mouldings can also be used,as can different versions of the mo'uldings presented here. It should be noted that even the most complicated mouldings can, of course, be used.
,' ' ~ .
. :
' ~ -' .
., . ~ . .
~ .
.,. ~ ,. . .
' The main requirement is that e.g. a moulding in accord-ance,with Fig.8 is included as a part of them.
Figs.9 and 10 show an enlarged illustration of angle unit 2 in the application according to Fig. 1. As can be seen from Fig. 10, the tongues 6 have been provided with tooth-like projections 8 which considerably increase the static friction when the tongues are inserted in their grooves.
Other means of increasing the friction of the tongues can, of course, also be used; a surface simila~ to that on a grater is, for example, suitable in an angle iointing unit of metal.
The invention can easily be applied on mouldings of ~oth metal and plastic. Wood mouldings are also suitable for this purpose. The actual angle jointing unit can generally be most profitably manufactured of plastic or metal by means of casting in one piece.
When a particularly strong angle joint is required, the teeth 8 according to Fig. 10 can be increased in size and the groove walls in mouiding 1 can be provided with recesses for the teeth 8.' In this case, the angle unit 2 must be manufactured of e.g. a plastic which is, to a certaln extent, elastic.
.
A picture in accordance with the invention is framed so that the mouldings are laid out in a rectangular shape on, for example, a table whereupon the picture which is to be framed together with its protective glass, and backing, if any, is placed on the edge flanges of the mouldings 7. The angle,jointing units are then pressed home, whereupon part of stiffening plate 5 simultaneously presses the picture into position.
.' ~ u.~) .
:
W079/00054 ~i~7~ ~4 PCT/SE78/00003 The invention is not, of course, in any way narrowly llmited to the applica~ion examples ln the drawlng or anythlng else indicated above. On the contrary, the solutions presented here can be changed and modified ln many different ways without fallin~ outside the scope of the invention.
~ AT
. . .
:. ~
~,
The main purpose of the invention has been to achieve a simple frame construction which almost anyone can manufacture in a simple and rapid manner and which is also extremely cheap to manufacture. At the same time, the aim has also been to permit the picture or corresponding object to be fixed in a simple and rapid manner to the frame and, when necessary, to dismantle the frame or replace the picture or corresponding object in the frame with another picture or object.
The procedure according to the invention is mainly characterized by the fact that the frames are built up of a moulding which has, at the rear of the picture, at least one groove or tongue in the longitudinal direction and that the angle unit has at least one corresponding tongue or groove respectively for these and that the frame is jointed by pressing in the angle units from the rear of the frame at each corner of the frame, whereupon the angle units lock the adjacent end of the moulding at the correct angle with the aid of tongue-and-groove joints.
The angle unit according to the invention is mainly characterized by the fact that it consists of a stiffening plate or suchlike with at least two straight edges at right angles to each other and at least one tongue (groove) along these edges in all essentials at right angles to the plane which is deter- -mined by the stiffening plate.
In one aspect of the present invention, there is pro-vided a picture frame comprising mouldings~which on the rear have at least one groove in the longitudinal direction and a 45 mitre at the ends, and which are jointed together at right angles with the aid of a ~eparate angle jointing unit which consists of a stiffening plate having substantially the form of the letter "A"
with the tip broken off, the two limbs of which each comprises at least one tongue along its length at right angle to the tongue of the other limb and substantially at right angle to the plane determined by the stiffening plate,- the at least one tongue on the stiffening plate being dimensioned so that when connecting the mouldings by pressing home the angle jointing units from the rear of the frame in each corner, the adjacent ends of mouldings are joined together with a friction grip between the angle jointing units and the mouldings.
.
., . .
.
- ~ . .
:
~ 4 -2a-The invention is described in more detail in the following text by means of references to the enclosed drawing and a number of schematically indicated design examples for the invention.
Fig. 1 shows an angle joint according to the invention seen from the rear of the frame, Figs. 2 and 3 show a section along the lines II-II and III-III respectively in Fig. 1.
Figs. 4 and 6 show two other angle joints seen in the same manner; Fig. 5 shows a section along the line V-V in Fig. 4 and Fig. 7 shows a section along the line VII-VII in Fig.
.
.
' : ~ .- .
:
' ~, `.
WO~9/00054 li~76'-*4 PCT/SE78Jo0003 Fig. 8 shows a number of mouldings to which the invention can be applied.
Figs. 9 and 10 showa model,of the angle jointing unit according to the invention ln two different projections.
In the design according to Figs.1-3, moulding 1 is used with two longitudinal grooves into which the tongues 6 on the angle jointing unit 2 are inserted. Angle jointlng '' unit 2 has a square stiffening plate ~. The tongues 6 follow the outer edges of the stiffening plate. Stiffening plate 5 at the same time constitutes the carcass on the angle unit and joins the tongues 6 of the angle unit firmly to each other at''an angle of gob.
In Figs.4 and 5, moulding 1 has only one groove and,stiffening plate 5 on angle unit 2 has the form of an equilateral right-an~le triangle. In a manner corresponding to this moulding, the edge of stiffening plate 5 has only one tongue 6.
In the design according to Figs.6 and 7, stiffening plate 2 is reminiscent of the letter A with the t~p broken off and has two tongues 6 at the outer edges for corre-sponding grooves in the moulding. This'design is character-ized ~y the fact'that the moulding walls havQ a recess 3 into which part 2 on stiffening plate 2 fits precisely.
This gives an extremely sturdy and reliable angle joint.
Part 2' has holes 4 which can be used when hanging the pibture with the aid of:cord or suchlike.
Fig..8 shows a number of moulding types which can be used when applying the invention. ~aturally, many other mouldings can also be used,as can different versions of the mo'uldings presented here. It should be noted that even the most complicated mouldings can, of course, be used.
,' ' ~ .
. :
' ~ -' .
., . ~ . .
~ .
.,. ~ ,. . .
' The main requirement is that e.g. a moulding in accord-ance,with Fig.8 is included as a part of them.
Figs.9 and 10 show an enlarged illustration of angle unit 2 in the application according to Fig. 1. As can be seen from Fig. 10, the tongues 6 have been provided with tooth-like projections 8 which considerably increase the static friction when the tongues are inserted in their grooves.
Other means of increasing the friction of the tongues can, of course, also be used; a surface simila~ to that on a grater is, for example, suitable in an angle iointing unit of metal.
The invention can easily be applied on mouldings of ~oth metal and plastic. Wood mouldings are also suitable for this purpose. The actual angle jointing unit can generally be most profitably manufactured of plastic or metal by means of casting in one piece.
When a particularly strong angle joint is required, the teeth 8 according to Fig. 10 can be increased in size and the groove walls in mouiding 1 can be provided with recesses for the teeth 8.' In this case, the angle unit 2 must be manufactured of e.g. a plastic which is, to a certaln extent, elastic.
.
A picture in accordance with the invention is framed so that the mouldings are laid out in a rectangular shape on, for example, a table whereupon the picture which is to be framed together with its protective glass, and backing, if any, is placed on the edge flanges of the mouldings 7. The angle,jointing units are then pressed home, whereupon part of stiffening plate 5 simultaneously presses the picture into position.
.' ~ u.~) .
:
W079/00054 ~i~7~ ~4 PCT/SE78/00003 The invention is not, of course, in any way narrowly llmited to the applica~ion examples ln the drawlng or anythlng else indicated above. On the contrary, the solutions presented here can be changed and modified ln many different ways without fallin~ outside the scope of the invention.
~ AT
. . .
:. ~
~,
Claims (4)
1. A picture frame comprising mouldings, which on the rear have at least one groove in the longitudinal direction and a 45° mitre at the ends, and which are jointed together at right angles with the aid of a separate angle jointing unit which consists of a stiffening plate having substantially the form of the letter "A" with the tip broken off, the two limbs of which each comprises at least one tongue along its length at right angle to the tongue of the other limb and substantially at right angle to the plane determined by the stiffening plate, the at least one tongue on the stiffening plate being dimensioned so that when connecting the mouldings by pressing home the angle jointing units from the rear of the frame in each corner, the adjacent ends of mouldings are joined together with a friction grip between the angle jointing units and the mouldings.
2. A picture frame according to claim 1, wherein each limb comprises two tongues and each moulding has two correspond-ing grooves.
3. A picture frame according to claim 2, wherein each moulding comprises adjacent each end a recess in the inner wall of the innermost groove, into which recess the cross piece of the angle jointing unit fits when connecting the mouldings.
4. A picture frame according to claims 1, 2 or 3, wherein the tongues on the stiffening plate have been provided on the outside with suitable teeth to increase the friction of the surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000343660A CA1157644A (en) | 1980-01-15 | 1980-01-15 | Corner-connecting appliance for picture frames |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000343660A CA1157644A (en) | 1980-01-15 | 1980-01-15 | Corner-connecting appliance for picture frames |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1157644A true CA1157644A (en) | 1983-11-29 |
Family
ID=4116046
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000343660A Expired CA1157644A (en) | 1980-01-15 | 1980-01-15 | Corner-connecting appliance for picture frames |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1157644A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4794714A (en) * | 1985-03-07 | 1989-01-03 | Weisgerber Robert G | Frame assembly for a display item |
| US5265358A (en) * | 1992-08-13 | 1993-11-30 | Murray Borod | Picture frame corner connector |
-
1980
- 1980-01-15 CA CA000343660A patent/CA1157644A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4794714A (en) * | 1985-03-07 | 1989-01-03 | Weisgerber Robert G | Frame assembly for a display item |
| US5265358A (en) * | 1992-08-13 | 1993-11-30 | Murray Borod | Picture frame corner connector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |