JPH0227826Y2 - - Google Patents

Description

[Detailed description of the invention] (Industrial application field) The present invention is applicable to a picture frame that can house a panel-shaped decorative item such as a jigsaw puzzle. This invention relates to a corner connecting device for picture frames that enables mutual connection at right angles reliably and easily.

(Prior Art) Conventionally, this type of corner connection device for picture frames is
A variety of options are available. For example, by appropriately bending a small piece of metal into a substantially L-shape, and forming a connecting fitting by providing female threaded holes at both ends thereof,
There is a method in which this connecting fitting is fixed to the frame material for a picture frame via a set screw to connect adjacent frame members for a picture frame to each other. However, this has the disadvantage that the screwing operation of the set screw is troublesome.

Therefore, in order to easily connect the corner parts, we formed an L-shaped connector made of synthetic resin and inserted both ends of the connector into the frame material for the picture frame. Connecting devices that can connect frame materials to each other with a single touch have become available. For example, there are assembly-type picture frames as described in Utility Model Application Publication No. 53-94291, and Utility Model Application No. 63-
This is a two-stage frame corner connector as described in Japanese Patent No. 142156.

That is, in the prefabricated picture frame, the vertical frame and horizontal frame of appropriate length form a rectangular cylindrical part and a base plate receiving part in the longitudinal direction, and locking windows are provided at required positions at both ends of the rectangular cylindrical part. a recess is formed in the inner wall of the horizontal piece and the upright piece of the joint member; an engaging piece having a locking portion is elastically provided on the recess; are fitted into the cylindrical parts of the horizontal frame and the vertical frame,
The above-mentioned engagement pieces are respectively engaged with the above-mentioned engagement windows.

In addition, the two-stage picture frame corner connector is inserted into the corner of the picture frame to form a picture frame, is provided with a stopper mechanism so that it cannot be easily removed at the same time as it is inserted, and furthermore, the stopper has a two-stage structure to slightly widen the picture frame. A stopper is sometimes activated to facilitate screen replacement.

(Problems to be Solved by the Invention) However, in the above-mentioned connecting device, since the connecting tool is approximately L-shaped, stress tends to concentrate at the corners, and the overall strength is relatively low. The problem was that it was prone to breakage, such as damage or breakage. by the way,
If the connector is made of a relatively strong synthetic resin material, it will be relatively hard to break, but since the high-strength synthetic resin material itself is relatively expensive, the connector and even the connector The problem was that the connection itself was expensive. Moreover, the picture frame corner 2
In the case of step connectors, there is a problem that both ends of the connector inserted into the frame material for a picture frame may hit a panel-shaped decorative object such as a jigsaw puzzle, making it difficult to attach, and there is a risk of damaging the panel-shaped decorative object. Ta. Furthermore, if the end face portions of each frame material, which are the contact portions between adjacent picture frame members, are not formed accurately to the specified dimensions,
There was also the problem that looseness occurred in the connection between the frame material for the picture frame and the connector. Furthermore, when the picture frame is placed on the floor or the like, there is a risk that the stopper protruding from the lower surface of the picture frame will be naturally pressed and the engagement state of the stopper may be unexpectedly released.

(Means for Solving the Problems) Therefore, the present invention provides a picture frame corner connecting device in which adjacent picture frame frame members B are connected to each other at approximately right angles using a connecting tool. , side frame piece 20
A front side frame piece 21 is connected to the distal edge of the side frame piece 20, and a back side is connected at right angles to the inner surface of the side frame piece 20, leaving a slight edge 20a at the proximal edge. The side frame pieces 22 constitute a substantially groove-shaped portion, and inside this substantially groove-shaped portion, a partition piece 23 that is continuous at right angles to the inner surface of the side frame piece 20 separates the connection tool storage space B1 and decorations. A housing space B3 is partitioned by a locking piece 24 connected at right angles to the back surface of the inner partition piece 23, and an insertion part housing space B is located near the inner frame piece 20 of the connector housing space B1.
2, an open gap 27 is provided between the front edge of the back frame piece 22 and the front edge of the locking piece 24, and a hole 25 for an operation protrusion is provided at a predetermined position of the back frame piece 22.
The connecting device A has an approximately L shape in which a pair of insertion portions 1 which can be inserted so as to be in sliding contact with the inner surface of the insertion portion accommodation space B2 are connected at right angles. A substantially right triangular reinforcing body A2 that connects the insertion parts 1 to each other is integrally connected to the letter-shaped connection base A1 so as to be able to pass through the open gap 27. , a pair of side pieces 2 and 3 which are arranged parallel to each other at appropriate intervals and whose tip portions are connected in an arc shape, and these side pieces 2 and 3.
A bottom piece 4 connected to the bottom end portion is formed into a substantially transverse groove shape, and each bottom piece 4 has an elastic piece 6 formed by cutting an elongated U-shaped notch groove 5. On the back side of the piece 6, an operating protrusion 7 that is engaged with one edge of the operating protrusion hole 25 and an engaging protrusion 8 that is engaged with the other edge of the engaging protrusion hole 26 are respectively protruded. established,
By employing a means in which the operating projection 7 is configured to slightly protrude from the back surface of the back frame piece 22, the above-mentioned difficulties can be overcome.

(Function) Therefore, inside the groove of the picture frame frame material B, the partition section 2
3, connecting tool storage space B1 and decoration storage space B
3, and the connector A is accommodated in this connector housing space B1. Moreover, the connection device storage space B
The connecting tool A is placed in the insertion section housing space B2 provided in the
The insertion section 1 is inserted. In addition, the substantially right triangular reinforcing body A2 is integrally connected to the substantially L-shaped connection base A1 to alleviate partial stress concentration on the connection base A1 and to increase the rigidity of the entire connector A. and increase strength and toughness. Further, the operating protrusion 7 and the engaging protrusion 8 protruding from the resilient piece 6 of the connecting tool A are engaged with the operating protrusion hole 25 and the engaging protrusion hole 26 of the picture frame frame material B, and the connection is established. The connection state between tool A and picture frame frame material B is maintained. Furthermore, when the engagement protrusion 8 is engaged with the engagement protrusion hole 26, the operating protrusion 7 is engaged with the operating protrusion hole 25, and at this time, the engaging protrusion 8 is inserted into the insertion portion 1. The operating protrusion 7 is engaged in contact with the other edge of the engaging protrusion hole 26 in the removal direction, and the operating protrusion 7 is engaged with one edge of the operating protrusion hole 25 in the insertion/removal direction of the insertion section 1. They are engaged so as to make contact, and movement of the insertion portion 1 relative to the frame member B in the insertion/removal direction is prevented.

(Example) Hereinafter, the present invention will be explained based on illustrated examples.

In the figure, A indicates a connecting tool that connects adjacent picture frame frame members B at right angles, and this connecting tool A has a connecting base having a substantially L-shape in which a pair of insertion portions 1 are connected at right angles. A1 and a substantially right triangular reinforcing body A2, which is connected to connect the pair of insertion portions 1, are integrally formed of a suitable synthetic resin material.

Moreover, the insertion portion 1 of the connection base A1 has a pair of side pieces 2, 3 which are arranged parallel to each other at appropriate intervals, and whose tip portions are connected in an arc shape, and these side pieces 2, 3. It is formed into a substantially transverse groove shape with a bottom piece 4 connected to the bottom end portion. Each of the bottom pieces 4 is formed with a resilient piece 6 formed by cutting a substantially elongated U-shaped notch groove 5 along the longitudinal direction of the insertion portion 1, and the back surface of the resilient piece 6 is , an operating protrusion 7 and an engaging protrusion 8 are provided in a protruding manner. Incidentally, the elastic piece 6 is formed so that the tip of the insertion portion 1 can be bent to a large extent, and the engagement protrusion 8 is disposed closer to the tip than the operating protrusion 7. The operation protrusion 7 is set to protrude more than the engagement protrusion 8 (see FIG. 2). That is, the engagement protrusion 8
Even when the engagement state with the engagement protrusion hole 26 of the picture frame frame material B, which will be described later, is released, the engagement state between the operation protrusion 7 and the operation protrusion hole 25 of the picture frame frame material B is not released. It is set so that the state can be obtained.

The reinforcing body A2 includes a substantially right-angled triangular plate-shaped reinforcing piece 10 whose two edge portions sandwiching the right-angled portion are connected to each of the pair of insertion portions 1, and a vertical plate-shaped reinforcing piece 10 which is connected to the oblique edge portion of this reinforcing piece 10. It is configured by integrally forming the upper piece 11. In addition, 12 in the figure is a locking piece insertion groove provided between both end portions of the upright piece 11 and the insertion portion 1;
Reference numeral 13 denotes a lightening hole appropriately bored in the reinforcing piece 10 in order to reduce the weight and to allow a finger to be placed on the reinforcing piece 10.

The frame material B for the picture frame is made of an appropriate metal material or an appropriate synthetic resin material, and the inside of the groove is provided with a partition piece 23.
The interior of this connector housing space B1 is partitioned into a connector housing space B1 and a decoration housing space B3 by a locking piece 24.
The insertion portion housing space B2 is formed within the connector housing space B1.

That is, the frame material B for a picture frame includes a side frame piece 20, a substantially arc-shaped front side frame piece 21 connected to the distal end edge of the side frame piece 20, and a proximal edge portion on the inner surface of the side frame piece 20. The back side frame pieces 22 are connected at right angles to each other, leaving a slight edge 20a, and form a substantially groove-shaped part, and the inside of this substantially groove-shaped part is formed at the substantially central part of the inner surface of the side frame piece 20. An inner partition piece 23 which is arranged in series and is also arranged in a row at a right angle to the side frame piece 20 partitions the connection tool storage space B1 and the decoration storage space B3, and the inside of this connection tool storage space B1 is divided into A connecting device storage space B1 is partitioned by a locking piece 24 that is connected to the substantially central part of the back surface of the piece 23 and is connected to the middle partition piece 23 at right angles.
An insertion portion accommodating space B2 is formed near the inner frame piece 20. An open gap 27 is provided between the tip edge of the back frame piece 22 and the tip edge of the locking piece 24, and the reinforcing piece 10 insertion portion 1 of the connecting tool A is provided in the open gap 27.
The closer part will now be located. By the way, the insertion part accommodating space B2 is formed so that the insertion part 1 of the connector A can be inserted and removed freely, and does not wobble when in the inserted state. That is, the outer surfaces of the side pieces 2 and 3 of the insertion section 1 are in sliding contact with the inner surface of the side frame piece 20 and the inner surface of the locking piece 24 of the insertion section accommodation space B2, respectively, and the inner surface of the partition piece 23 of the insertion section accommodation space B2 The side pieces 2 and 3 of the insertion portion 1 are attached to the back side and the back side frame piece 22 surface.
The upper end surface, the bottom end surfaces of the side pieces 2 and 3 of the insertion part 1, and the bottom piece 4 of the insertion part 1 are formed so as to be in sliding contact with each other.

Further, at a predetermined position of the back frame piece 22, there is an elliptical shape with which the operating protrusion 7 can be removably engaged when the insertion part 1 of the connector A is inserted into the insertion part accommodation space B2. An operating protrusion hole 25 and a rectangular engaging protrusion hole 26 into which the engaging protrusion 8 can be removably engaged are formed, respectively. Moreover, the engagement protrusion hole 26
is formed to approximately match the engaging protrusion 8, and the operating protrusion hole 25 is formed to be considerably longer than the operating protrusion 7 (see FIG. 4). by the way,
The end portion 20a of the base edge portion of the side frame piece 20 is set to be longer than the height at which the operation protrusion 7 protrudes from the back frame piece 22 (see FIG. 3). That is,
This prevents the operating protrusion 7 and the engaging protrusion 8 from being pressed by the end portion 20a when the picture frame is placed on the floor or the like.

In the figure, 30 is an underlay mount, 31 is a transparent plate made of transparent synthetic resin, and 32 is an appropriate jigsaw puzzle sandwiched between the underlay mount 30 and the transparent plate 31.
2 is configured to be able to be accommodated in the decoration storage space B3 of the frame material B for a picture frame.

By the way, the specific configuration, shape, dimensions, and material of the connector A, the specific configuration, shape, dimensions, and material of the frame material B, the connector housing space B1, the insertion portion housing space B2, and the decoration housing space B3, respectively. Specific configuration, dimensions, operating protrusion 7 of elastic piece 6, engaging protrusion 8, operating protrusion hole 25 of picture frame frame material B, engaging protrusion hole 26
The specific structure, dimensions, arrangement position, etc. of , are not limited to those shown in the illustrated example and can be freely set as appropriate.

The present invention is constructed as described above. Next, an example of its use will be explained. For example, first, the transparent plate 31, the jigsaw puzzle 32, and the base mount 30 are stacked from above, and these are stacked on the frame material B for a picture frame. The connector A is inserted into the accessory housing space B3, and the connector A is accommodated in the connector housing space B1 so that the insertion portion 1 of the connector A is inserted into the insertion portion housing space B2 of the frame material B for a picture frame. At this time, since the engaging protrusion 8 protruding from the resilient piece 6 hits the back side frame piece 22,
The operating protrusion 7 is pressed with fingers so that the engaging protrusion 8 does not hit the back frame piece 22, and the elastic piece 6 is made to swing elastically. Then, when the insertion part 1 is inserted to a predetermined position in the insertion part accommodation space B2, the operating protrusion 7 and the engagement protrusion 8 are pushed into the operating protrusion hole 25 and the engagement protrusion hole by the elastic force of the elastic piece 6 itself. 26, respectively, to prevent the connector A from being removed from the picture frame frame member B. At this time, the operating protrusion 7 and the engaging protrusion 8 sandwich the back frame piece 22 between the operating protrusion hole 25 and the engaging protrusion hole 26, that is,
The engagement projection 8 is in an engaged state in contact with the other edge of the engagement projection hole 26 in the insertion/removal direction of the insertion portion 1, and the operation projection hole in the insertion/removal direction of the insertion portion 1 is in an engaged state. The operating protrusion 7 is brought into contact with one of the hole edges of the frame member 25, and the insertion portion 1 is prevented from moving in the longitudinal direction of the picture frame frame B (the insertion/removal direction of the insertion portion 1).

By the way, in order to release the engagement state of the connecting tool A with the picture frame frame material B, the operating protrusion 7 is pressed against the elastic force of the elastic piece 6, and the operating protrusion 7 and the operating protrusion hole 2 are pressed.
5. This is done by releasing the engagement between the engagement protrusion 8 and the engagement protrusion hole 26, and pulling out the connector A itself from the picture frame frame B.

(Effect of the invention) Therefore, in the present invention, in a picture frame corner connection device in which adjacent picture frame frames B are connected to each other at a substantially right angle with a connecting tool A, the picture frame frames B are connected to each other at a right angle. Frame piece 2
0, a front side frame piece 21 that is continuous to the tip edge of the side frame piece 20, and a back side frame piece 21 that is continuous at right angles to the inner surface of the side frame piece 20 with a slight edge 20a left at the proximal edge. The side frame pieces 22 constitute a substantially groove-shaped portion, and inside this substantially groove-shaped portion, a partition piece 23 connected at right angles to the inner surface of the side frame piece 20 serves as a connector storage space B1 and decoration. The connector housing space B1 is partitioned into an object storage space B3 by a locking piece 24 that is connected at right angles to the back surface of the inner partition piece 23, and an insertion part storage space B2 is provided near the inner frame piece 20 of the connector storage space B1. An open gap 27 is provided between the leading edge of the edge frame piece 22 and the leading edge of the locking piece 24, and a hole 25 for the operation protrusion is provided at a predetermined position of the back frame piece 27.
and a hole 26 for an engaging protrusion, respectively, and the connecting device A has a pair of insertion portions 1 which can be inserted in sliding contact with the inner surface of the insertion portion accommodation space B2 and are arranged in series at right angles. The insertion portion 1 is attached to the approximately L-shaped connection base A1.
A substantially right triangular reinforcing body A2 that connects each other
are integrally arranged in series so as to be able to pass freely through the open gap 27, and the insertion parts 1 are arranged in parallel at appropriate intervals, and their distal ends are arranged in a circular arc shape. A pair of side pieces 2 and 3 and a bottom piece 4 connected to the bottom end portions of these side pieces 2 and 3 form a substantially transverse groove shape, and the bottom piece 4 has an elongated U-shaped notch groove 5 cut therein. The resilient pieces 6 are each formed with an operating protrusion 7 that is engaged with one edge of the operating protrusion hole 25 and an engaging protrusion hole 26 on the back side of the elastic piece 6.
Since the engaging protrusions 8 that are engaged with the other hole edge of the frame members B and the operating protrusions 7 are slightly protruded from the back side of the frame piece 22, the adjacent frame members B The connection and separation work can be performed with one touch, the frame materials B for picture frames can be connected at right angles, and the state of connection between the frame materials B for picture frames is stable, and a simple and robust connecting device can be provided. Become.

Moreover, the frame material B for a picture frame has a side frame piece 20, a front side frame piece 21 which is connected to the tip edge of the side frame piece 20, and a back side which is connected at right angles to the inner surface of the side frame piece 20. Frame piece 2
2 constitutes a substantially groove-shaped portion, and inside this substantially groove-shaped portion, a partition piece 23 connected at right angles to the inner surface of the side frame piece 20 divides the connector storage space B1 and the decoration storage space B3. The insertion part housing space B2 is partitioned off by a locking piece 24 that is connected to the back surface of the inner partition piece 23 at right angles, and an insertion part housing space B2 is formed near the inner frame piece 20 of the connector housing space B1.
Since it is formed with a
The connector A can now be inserted into the frame material B for a picture frame, and there is no risk of damaging the panel-shaped decoration. Moreover, the panel-shaped decoration can be accommodated according to the size and shape of the picture frame, making it an optimal connection device for a picture frame that accommodates a panel-shaped decoration such as a jigsaw puzzle.

In particular, the connecting tool A is attached to a substantially L-shaped connection base A1 formed by connecting a pair of insertion parts 1 at right angles, which can be inserted so as to be in sliding contact with the inner surface of the insertion part accommodation space B2. Since the reinforcing bodies A2 in the shape of a right-angled triangle are integrally arranged so as to be able to pass through the open gap 27, partial concentration of stress on the connecting base A1 (for example, a roughly L-shaped reinforcement body A2) The concentration of stress on the corners of the shaped connection base A1 can be alleviated, and the rigidity and strength of the entire connecting tool A can be increased, making it tougher and making the connecting tool A itself less likely to be damaged or broken. Therefore, it is not necessary to form the connector A using a high-strength synthetic resin material, and by using a relatively inexpensive synthetic resin material, the connector A can be provided at a low cost, and the price of the frame itself can be reduced. You will be able to hold it down. The substantially triangular connecting tool A, which is thus formed to be robust, can be easily and effortlessly fitted into the insertion section accommodation space B2 through the open gap 27. Furthermore, the inserted state of the insertion portion 1 into the insertion portion accommodation space B2 is stable without wobbling.

Furthermore, the insertion portion 1 has a pair of side pieces 2 and 3 which are arranged parallel to each other at appropriate intervals, and whose tip portions are connected in an arc shape, and a bottom end portion of the side pieces 2 and 3. The bottom pieces 4 are formed in a substantially transverse groove shape, and each of the bottom pieces 4 has an elastic piece 6 formed by cutting an elongated U-shaped notch groove 5 into the bottom piece 4. , an operating protrusion 7 that is engaged with the operating protrusion hole 25 and an engaging protrusion 8 that is engaged with the engaging protrusion hole 26.
and the operating protrusion 7 is configured to protrude slightly from the back surface of the back side frame piece 22, so that the connection state between the picture frame frame material B and the connecting tool A can be reliably maintained. , operation protrusion 7 and engagement protrusion 8
The engagement and disengagement operations between the operation protrusion hole 25 and the engagement protrusion hole 26 can be easily performed. Particularly, in combination with the fact that the back frame piece 22 is connected to the base edge part 20a of the side frame piece 20 while leaving a slight edge 20a, when the frame is placed on the floor etc., the operation protrusion 7 and The end portion 20a reliably prevents the engagement protrusion 8 from coming into contact with the floor surface and being pressed, and the engagement between the operation protrusion hole 25 and the engagement protrusion hole 26 and the operation protrusion 7 and the engagement protrusion 8 is prevented. It can reliably prevent the state from being canceled unexpectedly.
It becomes easy to handle. In addition, the insertion portion 1 of the connector A can be formed to be extremely robust, and since the distal end portion is arcuate, it can be smoothly inserted into the insertion portion accommodation space B2.

Moreover, on the back surface of the elastic piece 6, there are an operating protrusion 7 that is engaged with one edge of the operating protrusion hole 25, and an engaging protrusion 8 that is engaged with the other edge of the engaging protrusion hole 26. are provided in a protruding manner, so that when the engagement protrusion 8 is engaged with the engagement protrusion hole 26, the operating protrusion 7 is also engaged with the operating protrusion hole 25, and the operation protrusion 7 is inserted into and removed from the insertion portion 1. Movement of the frame member B relative to the frame member B can be reliably prevented. In other words, the end surface portions of each frame material B for a picture frame that are the contact portions between adjacent frame materials B for a picture frame, the distance from this end surface portion to the hole 26 for the engagement protrusion and the hole 25 for the operation protrusion, etc. Even if the insertion portion 1 is not formed to the predetermined dimensions with great precision, it is possible to prevent the insertion portion 1 from moving relative to the frame material B for the picture frame in the insertion/removal direction, and to prevent looseness or the like in the connection state between the frame material B for the picture frame and the connector A. There is no possibility that this will occur.

[Brief explanation of the drawing]

The drawings illustrate the present invention; FIG. 1 is an exploded perspective view, FIGS. 2 and 3 are partially cutaway side views showing the connecting portion, and FIG. 4 is a partially cutaway rear view showing the connected state. be. A... Connection tool, A1... Connection base, A2... Reinforcement body, 1... Insertion part, 2... Side piece, 3... Side piece,
4... Bottom piece, 5... U-shaped notch groove, 6... Resilient piece, 7... Operating protrusion, 8... Engaging protrusion, 10...
Reinforcing piece, 11... Standing piece, 12... Locking piece insertion groove, 13... Lightening hole, B... Frame material for picture frame, B1...
...Connection tool storage space, B2...Insertion section storage space, B
3... Decorative object storage space, 20... Side frame piece, 20a
... End part, 21 ... Front side frame piece, 22 ... Back side frame piece, 23 ... Partition piece, 24 ... Locking piece, 25
...Hole for operation protrusion, 26...Hole for engagement protrusion, 27
...Open gap, 30...Underlay mount, 31...Transparent plate, 32...Jigsaw puzzle.

Claims (1)

[Scope of utility model registration request] In a picture frame corner connection device in which adjacent picture frame frame members are connected to each other at a substantially right angle with a connecting tool, the picture frame frame members are connected to the side frame pieces and the tip edges of the side frame pieces. The front frame piece and the back frame piece are connected at right angles on the inner surface of the side frame pieces with a slight edge left at the proximal edge, forming a roughly groove-shaped part. The inside of the part is divided into a connector storage space and a decoration storage space by a partition piece that is connected at right angles to the inner surface of the side frame piece, and a locking piece that is connected to the back side of the partition piece at right angles. An insertion part accommodating space is provided on one side of the inner frame of the connecting device accommodating space, and an open gap is provided between the leading edge of the back frame piece and the leading edge of the locking piece, and a predetermined position of the back frame piece A hole for an operating projection and a hole for an engagement projection are formed at the position, respectively, and the connecting device has a pair of insertion parts that can be inserted in sliding contact with the inner surface of the insertion part accommodation space and are connected at right angles. On the approximately L-shaped connection base made of
A substantially right triangular reinforcing body connecting the insertion parts is integrally arranged in series so as to be able to pass freely through the open gap, and the insertion parts are arranged in parallel at appropriate intervals. In addition, a pair of side pieces whose tip portions are connected in an arc shape and a bottom piece connected to the bottom end of the side pieces form a substantially transverse groove shape, and the bottom piece has an elongated U-shaped notch. A resilient piece is formed by cutting a groove, and the back side of the resilient piece has an operating protrusion that is engaged with the edge of one of the operating protrusion holes, and a hole on the other side of the engaging protrusion hole. A corner connecting device for a picture frame, characterized in that engaging protrusions that are engaged with the edges are respectively provided in a protruding manner, and the operating protrusions are slightly protruded from the back surface of the back frame piece.