JPH0716138A - Device for connecting frame piece of picture frame - Google Patents

Abstract

PURPOSE:To firmly connect and fix frame pieces of a picture frame by butting them to each other without using a screw, etc. CONSTITUTION:To both ends of a connector 2 formed so as to be inserted between frame pieces 1 to be butted to each other, connecting insertion pieces 21, 22 are attached. Both connecting insertion pieces 21, 22 are formed in an L-shape by twisting round them by only a necessary angle to the inside in the revolving direction of its longitudinal axis center. Moreover, when these connecting insertion pieces 21, 22 are inserted into a groove of the frame piece 1, an elastic body 3 pressed strongly against a groove opening part piece is inclined and formed projectingly in the direction reverse to the inserting direction of the connecting insertion pieces.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a frame frame piece connecting device for firmly connecting and fixing the frame pieces that abut against each other without using screws or the like.

[0002]

2. Description of the Related Art In a conventional metal frame, frame pieces formed in a required cross-section are butted against each other at right angles.
At this abutting part, an L-shaped connecting metal fitting is inserted into the groove formed in the frame piece between the ends of both frame parts, and the connecting metal fitting and the frame piece are fixed to each other using screws, and the frame piece is fixed in the abutting state. is doing.

[0003]

However, in the conventional metal frame, screws are required for assembly, and it is necessary to turn the screws one by one with a tool such as a screwdriver during assembly and disassembly. There is a drawback in that the screws are loose and the frame rattles unless the screws are firmly tightened.

An object of the present invention is to firmly fix the frame pieces to be abutted against each other by utilizing the elasticity of the elastic body provided in the connection metal fitting which fits the connection metal fitting to one end of the frame without using screws or the like. To do.

[0005]

SUMMARY OF THE INVENTION The present invention has been made to achieve the above object, and is provided with connecting insertion pieces at both ends of a connecting member formed so as to be inserted between frame pieces to be butted against each other. , Both the connecting insert pieces are provided, and the connecting insert pieces are twisted inward in the circumferential direction of the longitudinal axis thereof only at a required angle to form an L-shape, and are inserted into the groove of the frame piece. The gist is that the elastic body, which is strongly pressed against the groove opening piece when projected, is inclined and projected in the direction opposite to the insertion direction of the connecting insertion piece.

[0006]

The connecting member to be inserted into the frame end groove to be abutted with each other is L-shaped, and the plate-like elastic body inclined in the direction opposite to the inserting direction of the connecting member is opened in the frame piece groove. Since it is projected outward from the part,
At the time of assembling the frame piece, by simply inserting the both-end insertion pieces of the connector into the groove of each frame piece, the elastic force of the elastic body strongly presses the frame piece, and the frame piece can be fixed without using screws or the like. Further, the elastic body can be easily disassembled by pushing it down a little and pulling out the frame piece.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A frame frame piece connecting device of the present invention will be described below with reference to the illustrated embodiments. In the figure, 1 is a frame frame piece, which is a light metal such as aluminum or aluminum alloy,
A material such as a synthetic resin is formed into a required cross-sectional shape so that a picture, a photograph, etc. can be stored, and is cut into a required length according to the size of the frame to be formed. Then, by using the groove 1M formed in the frame piece, the frame pieces that are butted against each other are connected and fixed to form a required frame.

Reference numeral 2 is a connecting metal fitting that connects and fixes between the frame pieces 1 and 1 that are cut at a required angle and abut each other, and are formed in an L shape using a synthetic resin or other material. The angle of the L-shape of the connecting fitting 2 is set to be a right angle if the frame to be formed is a rectangle or a square, and to the abutting angle of each side of the polygon if it is another polygon. It is defined so that it fits neatly into the side groove.

The connecting fitting 2 is provided with two L-shaped connecting insertion pieces 21 and 22 so as to intersect with each other at the base end thereof, and the respective connecting insertion pieces 21 and 22 are inserted into the frame piece 1 properly. Thus, its cross-sectional shape is determined, and its length is determined by inserting it into the groove 1M and firmly connecting the frame pieces.

The connecting insertion pieces 21 and 22 can be easily inserted by reducing the insertion resistance into the groove on the outer side surface thereof, and a plurality of them can be fitted and locked in the longitudinal direction so that the groove is not rattled. The ridges 23, 24, 25, 26 are integrally formed, and by this, the inner shape of the groove 1M of the frame piece,
Even if there is an error in the size or the manufacturing of the connecting insert pieces 21 and 22 or the like, the error is absorbed by the ridges 23 and 24, and the connecting insert pieces 21 and 22 are tightly fitted in the groove 1M. Make it locked. Therefore, the connecting insertion pieces 21, 2
The projecting amount of the ridge is determined so that the cross-sectional shape of the main body 2 is slightly smaller than the inner size in the groove 1M and is slightly larger than the inner size in the groove.

Further, when the connecting / inserting grooves 21, 22 are inserted into the frame piece grooves to be butted, the connecting / inserting pieces 21, 22 of the respective connecting / inserting pieces 21, 22 are brought into close contact with each other without a gap between the end surfaces of the frame pieces. When the longitudinal axes are slightly twisted inward in the circumferential direction of the axis and inward with respect to each other, for example, about 1 to several degrees, so that the connecting insertion pieces 21 and 22 are inserted into the grooves of the frame pieces, respectively. A force acts in a direction opposite to the twisting direction of the connecting / inserting piece so that the end faces of the frame pieces come into close contact with each other.

The connecting and inserting pieces 21, 22 are the frame pieces 1.
When inserted and fitted in the groove 1M, the elastic members 3 and 3 which are firmly fixed to the frame pieces are integrally formed so that the frame pieces 1 and 1 that are butted and fitted so as not to slip off may be fixed. It is provided.

The elastic body 3 is made of a leaf spring material, and its width is made equal to the inner width of the groove 1M or slightly narrowed.
The width of the portion of the groove 1M protruding from the opening is smaller than this opening, and the base end of the elastic body 3 is connected to the connecting and inserting pieces 21,2.
It is embedded in the tip end portion or the central portion of 2 to be integrally formed, but when the connector 2 is molded with synthetic resin, it is integrally formed with an insert.

If the shape of the elastic body 3 is larger than the groove opening width in the groove and the portion protruding outside the frame piece is smaller than the groove opening width, the shape is variously adopted in addition to the tongue shape. Is not limited. However, the side end edge of the elastic body is in contact with the inner side surface of the groove opening piece at the portion protruding from the inside of the groove through the groove opening to the outside of the frame piece.

Further, when the elastic body 3 is integrated with the connecting and inserting pieces 21, 22 by an insert, the connecting and inserting piece 2
It is made to incline in the opposite direction to the insertion direction of the grooves 1 and 22 into the groove 1M. The strength for connecting and fixing the connecting tool 2 and the frame piece 1 is determined by the elasticity of the elastic body 3 and its inclination angle. The inclination angle is light even when the connecting insert piece is inserted into the groove 1M, and is in the opposite direction to the insertion. On the other hand, the edge of the elastic body comes into strong contact with the groove opening, and acts so as to bite into the groove opening to prevent it from coming off.

If necessary, the connecting member 2 can be partially cut out if there is no problem in strength, so that the material can be saved. Further, in order to fully exert the elastic force of the elastic body 3,
At the portion where the elastic body 3 is inserted, the upper surface of the insertion piece is slightly cut out at the back side of the elastic body 3, that is, at the rear side in the insertion direction to form a recess, thereby increasing the elasticity of the elastic body.

Therefore, in order to connect and fix the frame pieces 1 and 1 using the connecting tool 2 configured as described above, the connecting and inserting pieces 21 and 22 are respectively inserted into the groove 1M from the end surface side of the frame pieces 1 to be abutted. insert. At this time, if the upper part of the elastic body 3 is slightly pushed down, the contact with the frame piece is released, so that the frame body can be lightly inserted. When the connecting insertion piece is larger than the groove hole, the protruding ridge is inserted while being cut at the edge of the frame piece, and is fitted and fixed properly without rattling so as to be closely attached in the groove. The elastic body edge is pressed against the inner side surfaces 11, 11 of the groove opening piece by the elastic force of the elastic body, and is firmly fixed.

[0018]

The frame frame piece connecting device according to the present invention includes the connecting insert pieces at both ends of the connecting piece formed so as to be inserted between the frame pieces that are abutted against each other, and both the connecting insert pieces are provided. , L by twisting both the connecting insertion pieces inward in the circumferential direction of the longitudinal axis thereof only at a required angle.
Since the elastic body that is shaped like a letter and is strongly pressed by the groove opening piece when inserted into the groove of the frame piece in the connecting insert piece is provided so as to project in an inclined direction opposite to the inserting direction of the connecting insert piece, Both frame pieces are firmly fixed by simply inserting them between the butt frame pieces without using the like, and when removing between the frame pieces, you can easily assemble and disassemble by pushing down the elastic body while pulling out the frame pieces. Have.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing an embodiment of a frame frame piece connecting device of the present invention.

FIG. 2 is a cross-sectional view when fixed by a connecting tool.

FIG. 3 is a plan view of the connector.

FIG. 4 is a vertical sectional side view of the same.

[Explanation of symbols]

 1 Frame Piece 11 Inner Side of Groove 1M Groove 2 Connecting Tool 21,22 Connecting Inserting Piece 23,24 Projection 3 Elastic Body

Claims (2)

[Claims] 1. A connection tool is provided at both ends of a connector formed to be inserted between frame pieces to be butted against each other, and both connection insertion pieces are provided, and both connection insertion pieces are provided with their longitudinal axes. An elastic body that is L-shaped by twisting only a required angle inward in the circling direction of the heart and that is strongly pressed against the groove opening piece when inserted into the groove of the frame piece by this connecting insert piece. A frame frame piece connecting device, which is provided so as to be inclined in a direction opposite to an inserting direction of the frame frame piece. 2. An L-shaped connector inserted into the groove of the frame piece is integrally provided with a plurality of ridges along the longitudinal direction of the insert piece, so that a manufacturing error of the frame piece and the connector may occur. The frame frame piece connecting device according to claim 1, wherein the frame frame piece is fitted in the frame piece groove without rattling the connecting tool.