CANVAS CORNER FIXING DEVICE FOR ALUMINUM CANVAS FRAME

Abstract

A canvas corner fixing device for an aluminum canvas frame includes: canvas frame bodies each made by means of extrusion molding and having a hollow portion formed therein and a fixing groove and a coupling groove formed on the rear surface thereof; a corner coupling member having a body, a support located at the inside of the body, and frame body insertion holes formed on one side in a vertical direction thereof and on one side in a horizontal side thereof; and a fixing member made of a soft synthetic resin and having coupling protrusions protruding from one side in a vertical direction thereof and from one side in a horizontal side thereof.

Claims

1. A canvas corner fixing device for an aluminum canvas frame, comprising: canvas frame bodies (3) each made by means of extrusion molding and having a hollow portion (32) formed therein; a corner coupling member (1) having a body (13), a support (12) located at the inside of the body (13), and frame body insertion holes (11) formed on one side in a vertical direction thereof and on one side in a horizontal side thereof; and a fixing member (2) as a square-shaped plate having a body (22) and coupling protrusions (21) protruding from one side in a vertical direction thereof and from one side in a horizontal side thereof, wherein the body (22) of the fixing member (2) is inserted into a recess (14) formed in the body (13) of the corner coupling member (1) in such a way as to come into close contact therewith to allow the coupling protrusions (21) of the fixing member (2) to be located inside the frame body insertion holes (11) and to allow the frame body insertion holes (11) and the coupling protrusions (21) to be simultaneously inserted into the hollow portions (32) of the canvas frame bodies (3), so that the corner coupling member (1), the fixing member (2), and the canvas frame bodies (3) are coupled to one another.

2. The canvas corner fixing device according to claim 1, wherein the support (12) of the corner coupling member (1) is disposed on the bottom of the recess (14).

3. The canvas corner fixing device according to claim 1, wherein the corner coupling member (1) has a through hole (16) formed on the center of the body (13) in a direction from the outside toward the recess (14).

Description

BRIEF DESCRIPTION OF DRAWINGS

[0013] FIG. 1 is a perspective view showing a state where a canvas corner fixing device for an aluminum canvas frame according to the present invention is fixed to the aluminum canvas frame.

[0014] FIG. 2 is an exploded perspective view showing components of the canvas corner fixing device according to the present invention.

[0015] FIG. 3 is a sectional view showing a coupled relation among a corner coupling member, a fixing member, and a frame body of the canvas corner fixing device according to the present invention.

[0016] FIG. 4 is a perspective view showing a state where a through hole is formed on the fixing member of the canvas corner fixing device according to the present invention.

[0017] FIG. 5 is an exemplary view showing the canvas frame made with the canvas corner fixing device according to the present invention.

DETAILED DESCRIPTION OF THE INVENTION

[0018] Hereinafter, the present invention will be explained in detail with reference to the attached drawings.

[0019] FIG. 2 is an exploded perspective view showing components of a canvas corner fixing device according to the present invention.

[0020] According to the present invention, the canvas corner fixing device for an aluminum canvas frame includes canvas frame bodies 3 each made by means of extrusion molding and having a hollow portion 32 formed therein, a corner coupling member 1 having a body 13, a support 12 located at the inside of the body 13, and frame body insertion holes 11 formed on one side in a vertical direction thereof and on one side in a horizontal side thereof, and a fixing member 2 as a square-shaped plate having coupling protrusions 21 protruding from one side in a vertical direction thereof and from one side in a horizontal side thereof.

[0021] The canvas frame body 3 as disclosed in Korean Patent Application Laid-open No. 10-2023-0007045 is made by extrusion molding and has the hollow portion 32 formed therein and a fixing groove and a coupling groove formed exposedly on the rear surface thereof so that a plurality of fixing pins 31 are coupled to the canvas frame body 3.

[0022] The corner coupling member 1 has a recess 14 formed inside the body 13, the support 12 protruding from the bottom of the recess 14, the frame body insertion holes 11 formed on one side in the vertical direction thereof and on one side in the horizontal side thereof, and stepped projections 15 formed on the boundaries between the frame body insertion holes 11 and the body 13.

[0023] The fixing member 2 has a body 22 made of a soft synthetic resin to the form of square, the coupling protrusions 21 protruding from one side in the vertical direction of the body 22 and from one side in the horizontal side thereof, and support projections 23 formed on the boundaries between the coupling protrusions 21 and the body 22.

[0024] Under the above-mentioned configuration, if the body 22 of the fixing member 2 comes into close contact with top of the support 12 protruding from the recess 14 of the corer coupling member 1, the coupling protrusions 21 of the fixing member 2 are located inside the frame body insertion holes 11 of the corner coupling member 1, and next, the frame body insertion holes 11 and the coupling protrusions 21 are simultaneously inserted into the hollow portions 32 of the frame bodies 3, thereby completing the assembly of the canvas frame.

[0025] When the corner coupling member 1, the fixing member 2, and the frame bodies 3 are coupled to one another, at least three surfaces of each frame body insertion hole 11 come into close contact with the inner surfaces of the hollow portion 32 of the corresponding frame body 3 and are thus coupled to the corresponding frame body 3, and one surface of each coupling protrusion 21 of the fixing member 1 comes into close contact with the support 12 in the recess 14 of the corner coupling member 1, while the other surface thereof is coupled to the inner surface of the frame body 3 coupled thereto.

[0026] That is, the frame body insertion holes 11 of the corner coupling member 1 and the coupling protrusions 21 of the fixing member 2 are overlaid on top of each other and inserted into the hollow portions 32 of the frame bodies 3, so that at least three surfaces of each frame body insertion hole 11 come into close contact with the inner surfaces of the hollow portion 32 of the corresponding frame body 3 and are thus coupled to the corresponding frame body 3, and one surface of each coupling protrusion 21 of the fixing member 1 that is inserted into the recess 14 of the corner coupling member 1 in such a way as to be overlaid on the corresponding frame body insertion hole 11 comes into close contact with the hollow portion 32 of the frame body 3, thereby allowing the corner coupling member 1 and the fixing member 2 to be simultaneously coupled to the hollow portions 32 of the frame bodies 3.

[0027] According to the present invention, further, when the coupling protrusions 21 of the fixing member 2 are inserted into the recess 14 of the corner coupling member 1 in such a way as to be overlaid on the frame body insertion holes 11, the four surfaces of each coupling protrusion 21 come into close contact with the hollow portion 32 of the corresponding frame body 3, and therefore, it is noted that the support 12 protruding from the recess 14 of the corner coupling member 1 is provided to reduce the material and weight of the corner coupling member 1 or the fixing member 2.

[0028] The stepped projections 15, which are formed on the boundaries between the frame body insertion holes 11 and the body 13 of the corner coupling member 1, and the support projections 23, which are formed on the boundaries between the coupling protrusions 21 and the body 22 of the fixing member 2, limit coupled quantities to the frame bodies 3 and allow the body 13 of the corner coupling member 1 and the body 22 of the fixing member 2 to come into close contact with the ends of the frame bodies 3, and the heights of the stepped projections 15 and the support projections 23 are determined to prevent the formation of steps from the coupled boundaries between the corner coupling member 1 and the fixing member 2 coupledly formed along the edges of the frame bodies 3 and the frame bodies 3.

[0029] Further, the corner coupling member 1 has a through hole 16 formed on the center of the body 13 in a direction from the outside toward the recess 14 so that the corner coupling member 1 is coupled to the fixing member 2 by means of a fixing screw 5 fastened to the through hole 16.

[0030] According to the present invention, furthermore, the corners of the canvas 4, which are not fixed to the frame bodies 3, that is, the canvas 4, which is located at the corners of the canvas frame, is fixed to the fixing member 2 by means of a fixing staple 6.

TABLE-US-00001 Explanations of Reference Numerals 1: Corner coupling member 11: Frame body insertion hole 12: Support 13: Body 14: Recess 15: Stepped projection 16: Through hole 2: Fixing member 21: Coupling protrusion 22: Body 23: Support projection 3: Frame body 31: Fixing pin 32: Hollow portion 4: Canvas 5: Fixing screw 6: Fixing staple