JP2872615B2 - Connection structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connection between a fabric covering frame for painting a canvas such as a painting canvas and a corner of a picture frame, and a connection structure applied to building materials.

[0002]

2. Description of the Related Art Conventionally, after inserting a joint between a pair of connected members having a hollow connecting portion, the hollow connecting portion is pressed by a press to fix the joint, or a screw is passed through the connected member and the joint. A hole was made and the connected member was fixed with a screw.

[0003]

However, there is a disadvantage that the connecting operation for connecting the members to be connected by the joint becomes complicated. Accordingly, an object of the present invention is to provide a connection structure that can simplify the connection operation.

[0004]

According to the first aspect of the present invention, there is provided a connecting structure comprising:
A pair of connected members having a hollow portion for connection on opposing surfaces,
A joint having press-fit portions at both ends for press-fitting into the connection hollow portion, wherein a mountain-shaped unevenness whose top is crushed at the time of press-fitting has an inner peripheral surface of the connection hollow portion and an outer peripheral surface of the press-fit portion. in connection structure formed on at least one of, in a said coupling
The hollow portion has a rectangular cross section and is arranged circumferentially on its inner peripheral surface.
The joint has a flat V-shaped plate.
On the surface and in a direction perpendicular to the direction in which the bent portion protrudes.
Characterized by having the above-mentioned unevenness .

According to a second aspect of the present invention , the connecting structure is connected to the opposing surfaces.
A pair of connected members having a hollow portion for connection;
A joint having press-fit portions at both ends for press-fitting into the hollow portion,
When the fitting is crushed at the time of fitting,
At least one of the inner peripheral surface of the
In the formed connection structure, the connection hollow portion has a cross-sectional angle.
The irregularities which are shaped and are arranged in the circumferential direction on the inner peripheral surface
Said joint is a bent V-shaped bent plate, and
The surface has the irregularities arranged in the direction from the bent part to the end part
It is characterized by the following. According to a third aspect of the present invention , in the first or second aspect , the pair of connected structures
Each of the binding members has a plurality of the connecting hollow portions.
is there.

[0006]

[0007]

[0008]

According to the connecting structure of the first aspect, when both ends of the joint are pressed into the connecting hollow portions of the respective connected members, the tops of the convex portions of the mountain-shaped irregularities are crushed by the opposing surface and adhere to each other firmly. Be linked. Therefore, the pair of connected members can be reliably connected by a simple operation. Also, the extending direction of the unevenness is
Cross each other at about 45 degrees so that the tops of each protrusion
Lock while crushing, and
Easy to manufacture because hands can be manufactured by extrusion molding
become.

According to the connecting structure of claim 2 , both ends of the joint are provided.
Is pressed into the connecting hollow portion of each member to be connected.
The top of the convex part is crushed on the opposing surface and adheres tightly and connects firmly
Is done. For this reason, a pair of connected members
Can be reliably connected. Also, the direction in which the irregularities extend
Since they intersect each other, the tops of each convex part crush each other.
While connecting and pressing the connected member and the joint.
Can be manufactured by extrusion molding.
You.

According to the connecting structure of the third aspect , in addition to the same effects as those of the first and second aspects, the connecting strength is increased.
can do.

[0011]

[0012]

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A cloth upholstery to which a first embodiment of the present invention is applied will be described with reference to FIGS. That is, the connection structure includes a plurality of frame pieces 1a to 1d serving as connected members,
And a joint 2. The plurality of frame pieces 1a to 1d are formed by extrusion molding, and as shown in FIG. 3, a frame piece 1a serving as an upper frame and a frame piece 1c serving as a lower frame, and a frame piece 1b serving as a side frame, as shown in FIG. , 1d, each end face of which is approximately 45
It is formed on an inclined surface.

Each of the frame pieces 1a to 1d has the following structure by extrusion molding. That is, it has a concave groove 7 on the outer surface thereof, has a ridge 5 for upholstery on the front end side with respect to the concave groove 7, and has a connecting hollow portion 4 for fitting the end of the joint 2.
Having. On the inner wall surface of the concave groove 7, irregularities 8 are formed which are frictionally engaged with the legs 19 of the fixture 3, and on the inner peripheral surface of the connecting hollow part 4 are formed mountain-shaped irregularities 15 arranged in the circumferential direction. I have.

The joint 2 has press-fit portions 11 at both ends for press-fitting into the connecting hollow portion 4. The press-fit portion 11 has a mountain-shaped unevenness 22 formed on the outer peripheral surface. In the embodiment, a strip 21 as shown in FIG. 5B is prepared. The band plate 21 has, for example, a mountain-shaped unevenness 22 continuous in the width direction with a width of about 30 mm at the center of both sides of the band plate 21 having a width of 60 mm. The height of the peak of the unevenness 22 is about 0.5 mm. FIG. 4 shows that the plurality of joints 2 are sequentially cut in a substantially V-shape from the strip 21 in the longitudinal direction, thereby forming a flat V-shaped flat joint 2 arranged in a direction perpendicular to the projecting direction of the bent portion. I have. in this case,
As shown in FIG. 4, the taper is formed so that the width at both ends is smaller than the width of the V-shaped bent portion, so that it can be easily inserted into the connecting hollow portion 4. The strip 21 shown in FIG. 5A is formed by slightly increasing the thickness of the central portion 23, and its front and back surfaces are flat. This is also cut into a V-shape in the longitudinal direction of the strip 21 as shown in FIG.

FIG. 6 shows, for example, a state in which adjacent frame pieces 1a, 1d are connected by one joint 2, and the longitudinal directions of the irregularities 15, 22 cross each other at approximately 45 degrees and are engaged with each other. In this case, the convex portions of the concaves and convexes 15 and 22 are crushed against each other and are in a connected state. Therefore, the frame pieces 1a and 1d can be securely and firmly connected without using screws or the like. When assembling the fabric upholstery frame 1, the four joints 2 are interposed between the frame pieces 1a to 1d so that the frame piece 1a
Assemble as a whole by hitting ~ 1d.

In FIG. 1, a fixture 3 fixes a fabric 18 such as a canvas to be stretched on the surface of a fabric stretch frame. The fixing device 3 of the embodiment breaks through the fabric 18 and
And a head 20 for pressing the fabric 18 against the outer surface 6. A fabric 18 is provided on the front surface 13 of a fabric upholstery frame formed by connecting the frame pieces 1a to 1d by the joint 2.
On the outer surface 6 of the frame pieces 1a to 1d, and pull it to the back side of the frame with pliers, etc.
And pierce the fabric 18 with the head 20
Is pressed against the outer surface 6 of the frame pieces 1a to 1d.
The fabric 18 is stretched in a state where the center side is pulled toward the periphery. In addition, since the unevenness 8 is formed on the inner wall surface of the concave groove 7, the leg 19 of the fixing tool 3 can be formed only by press-fitting the fixing tool 3.
Easy to frictionally lock. The material of the fixture 3 is preferably softer than the fabric upholstery frame 1. However, when the material is harder than the frame pieces 1a to 1d, such as iron, for example, the protrusions of the unevenness 15 may be crushed and locked.

In FIG. 3, reference numeral 1e denotes a reinforcing bar. According to this embodiment, when both ends of the joint 2 are pressed into the connecting hollow portions 4 of the frame pieces 1a to 1d, which are the connected members, the tops of the convex portions of the mountain-shaped irregularities 15 are crushed to the opposing surfaces. Closely connected. Therefore, the frame pieces 1a to 1d can be securely and firmly connected by a simple operation.

The connecting hollow portion 4 has a rectangular cross section, and has irregularities 15 arranged in the circumferential direction of the inner peripheral surface.
It is a flat plate having a U-shape, and its surface has irregularities 22 arranged in a direction perpendicular to the direction of projection of the bent portion.
Since the extending directions of the projections 5 and 22 intersect each other at about 45 degrees, the tops of the projections are engaged with each other while being crushed, and the frame pieces 1a to 1d and the joint 2 as connected members are extrusion-molded. , The production becomes easy.

It is sufficient that the mountain-shaped irregularities 15 and 22 are provided on at least one of the connected member and the joint 2. FIG. 7 shows a modification of the connecting hollow portion 4 when the thickness of the frame pieces 1a to 1d is large. In FIG. 1A, narrow width portions 25 and 26 each having a size corresponding to the plate thickness of the joint 2 are formed at both ends of the cross section of the connecting hollow portion 4 and at the center in the width direction of the center portion. FIG. 2B is a modification in which the narrow portion 26 is not provided, and FIG. 2C is an example in which the narrow portion 25 ′ is displaced to one side in the width direction of the connecting hollow portion 4. In any case, irregularities 15 and 22 are formed on at least one of the inner surface of the connecting hollow portion 4 and the contact surface of the joint 2.

When the thickness of the frame pieces 1a to 1d is large, the connecting hollow portion 4 becomes large due to extrusion molding, but the joint 2 does not have to be made large by the narrow width portions 25 and 26. Become .

[0022] The second embodiment of the invention this is shown in Figure 8. That is, this connection structure is applied to a case where a pair of plate-like connected members are connected in the plate thickness direction. The structure of the member to be connected is the same as the cross section of FIG. 1, except that the joint 2 'is formed by bending a strip in a V-shape in the thickness direction to form a bent V-shape. Are formed so as to be aligned in the direction from the bent portion to the end portion and extend parallel to the width direction. However, the corner on the protruding surface side of the bent portion is formed lower than the convex portion of the unevenness 22 (see FIG. 18 ).

The connected member to which the joint 2 ' is applied is, for example, a panel or the like, and the joint surface is inclined at about 45 degrees.
A connection hollow portion in which the joint 2 ′ can be fitted is formed on the connection surface of the connected member 1. Then, irregularities are formed on the inner surface of the connecting hollow portion. In this embodiment, the joint
2 ' can be manufactured by extrusion, but when the unevenness 22 is inclined with respect to the width direction of the joint 2' , it can be manufactured by casting. The irregularities 15, 22 may be formed on at least one of the connected member 1 and the joint 2 ' .

FIG. 9 shows a fabric upholstery frame to which the third embodiment of the present invention is applied. That is, in this connection structure, in the first embodiment, the connection hollow portions 4 of the frame pieces 1a to 1d are rectangular in cross section, particularly rectangular in cross section, and the unevenness 15 arranged in the circumferential direction of the inner peripheral surface is formed into one rectangular cross section. It is formed on one of the opposing surfaces, and one protrusion 30 is formed on the other opposing side surface. In addition, the upholstery ridges 5 of the frame pieces 1a to 1d are formed so as to have an inclined front surface so as to be higher. Only the cloth is supported.

The frame pieces 1a to 1d of this embodiment are also formed by extruding aluminum. 31 is a concave portion. The other parts are the same as those of the first embodiment and FIG. 7, and the same parts are denoted by the same reference numerals. According to this embodiment,
The connecting hollow portion 4 has a rectangular cross section, and the concave and convex 15 arranged in the circumferential direction of the inner peripheral surface are formed on at least one of the opposing surfaces having the rectangular cross section, and at least one protrusion 30 is formed on the other opposing surface.
As a result, the number of irregularities can be reduced while securing the connection strength, and the molding surface of the molding die can be simplified.

The number of the irregularities 30 may be plural.
FIG. 10 shows a fabric upholstery frame to which the fourth embodiment of the present invention is applied.
Shown in That is, the frame pieces 1a to 1d of the cloth upholstery frame
In the third embodiment, a plurality of connecting hollow portions 4, 4
a. In the embodiment, a pair of connecting hollow portions 4 and 4a are arranged so as to overlap in the longitudinal direction of the rectangular cross section. 32 is a connecting hollow portion, 4 and 4
This is a recess formed on the front side so as to straddle a. Others are the same as the third embodiment.

According to this embodiment, since the plurality of connecting hollow portions 4, 4a are formed, the connecting strength can be increased. FIG. 11 shows a fabric upholstery to which the fifth embodiment of the present invention is applied. That is, the frame pieces 1a to 1
1d, in the fourth embodiment, which was shifted a plurality of connecting the hollow portion 4,4a in the lateral direction and the longitudinal direction of the rectangular cross section, frame width is smaller than the fourth embodiment However, the thickness is slightly increased. 33 is a concave portion.
Numeral 34 denotes a concave portion for driving a fixing tool (not shown) when the cloth upholstery frame is supported on a support table (not shown), and has concaves and convexes 37 at intervals smaller than the concaves and convexes 8 on the inner surface. . Reference numerals 35 and 36 denote projecting pieces. When a reinforcing bar (not shown) is interposed between the frame pieces 1a to 1d, the end of the reinforcing bar is used as a projecting piece 3.
It fits between 5, 36.

FIG. 12 shows a fabric upholstery frame to which the sixth embodiment of the present invention is applied. That is, the frame pieces 1a to 1d of the fabric upholstery frame are those in which the fabric upholstery frame is larger than that of the fifth embodiment, and the interval between the pair of connecting hollow portions 4, 4a is the fifth . It is even larger than in the example, forming a hollow 39 between them. Others are 5th
This is the same as the embodiment.

FIGS. 13 and 14 show a frame such as a fabric upholstery frame to which the seventh embodiment of the present invention is applied. That is,
This frame is formed by connecting both ends of the four frame pieces 40a to 40d to about 45
The cross-section structure of each of the frame pieces 40a to 40d is shown in FIG.
The configuration shown in FIG. Each of these frame pieces 40a
40d to 40d form a pair of connecting hollow portions 4 on both sides of the hollow portion 53, and form a pair of projecting pieces 41, 42 on the inner side surfaces of the frame pieces 40a to 40d corresponding to the inside of the frame.
A step 43 is formed between the projections 42 on the side of the projecting piece 42. A joint (not shown) is pressed into the connection hollow portion 4. The projecting piece 41 has a screw insertion hole 44, and a reinforcing bar 46 is inserted inside the projecting piece 41. Reinforcement bars 46 screws inserted through hole 4
A screw hole 47 and a screw hole 48 for fixing the canvas, which are aligned with the screw hole 4, are formed. Screw 49 through screw insertion hole 44
Into the screw hole 47 to fix the reinforcing bar 46, and insert the edge of the canvas 50, which is a cloth-stretched frame, inside the protruding piece 42, and insert the screw 51 into the canvas fixing screw hole 48. The canvas 50 is screwed and the canvas 50 is pressed against the projecting piece 42 with the tip of the screw 51 to fix the canvas 50. Reference numeral 45 denotes a protruding piece for facilitating the extrusion of the frame pieces 40a to 40d. And the same reference numeral in other first common to that portion of Example and 7.

FIG. 15 shows a frame of a fabric upholstery frame to which the eighth embodiment of the present invention is applied. That is, this picture frame
In the seventh embodiment, the connecting hollow portion 4b is also formed at the end of the step portion 43 on the side of the protruding piece 41, and the protrusion 30 described in the third embodiment is formed in the connecting hollow portion 4, 4b. ing. FIG. 15 shows a fabric upholstery frame to which the ninth embodiment of the present invention is applied.
16 to 18 . That is, in this fabric-clad frame, three connecting hollow portions 4, 4c, 4d having a rectangular cross section are formed in the frame pieces 1a to 1d, and the width direction of the connecting hollow portions 4c, 4d, that is, the longitudinal direction in the cross section is connected. It is arranged in the width direction of the use hollow part 4, that is, in the direction perpendicular to the longitudinal direction in the cross section. Joint 2 is fitted to the coupling hollow portion 4 with a flat V-shaped flat plate similar to that shown in FIG. 1, the connecting hollow portion 4c, the joint 2 is fitted to 4d 'is 17 and
As shown in FIG. 18 (see also FIG. 8 ), a bent V-shaped bent plate is applied. The joint 2 of the embodiment has irregularities 22 on both surfaces. Further, a projection 30 similar to that of the third embodiment is formed in the connecting hollow portion 4. Others are the same as the third embodiment.

FIG. 19 shows a fabric upholstery frame to which the tenth embodiment of the present invention is applied. That is, this fabric upholstery frame
A pair of hollow connecting portions 4 and 4a shown in the fifth embodiment and the like are provided on the frame pieces 1a to 1d so as to be orthogonal to each other, and the concave groove 7 is formed in a rod shape such as a round bar. An elastic body 52 such as rubber or urethane foam is press-fitted along the groove 7, whereby the cloth 18 is pushed into the groove 7, and
I have eight.

In this case, fine irregularities may be formed on the peripheral surface of the elastic body 52 in the embodiment. The unevenness may be formed in the circumferential direction, or the unevenness may be formed in the circumferential direction and the axial direction. Instead of fixing the fabric 18 in the groove 7, the edge of the fabric 18 is made to face the recess 34 formed on the back surface side of the fabric upholstery frame, and the fabric 18 is pushed into the recess 34 by the elastic body 52. It may be fixed by tension. Frame pieces 1a to 1
The outer surface 6 of d may have fine mountain-shaped irregularities for preventing the cloth 18 from slipping.

It should be noted, in the present invention, the examples was the coupled structure of the corner portion of any frame, as the construction material and the like can be applied to a frame or the like of windows and doors. Or irregularity 15, 22 the inner circumferential surface of the connecting hollow portion 4 and press fit portion 11
At least one of them may be formed.

[0034]

According to the connecting structure of the first aspect, when both ends of the joint are pressed into the connecting hollow portions of the respective connected members, the tops of the convex portions of the mountain-shaped unevenness are crushed and adhered to the opposing surfaces. Strongly connected. Therefore, the pair of connected members can be reliably connected by a simple operation. Also, the direction in which the irregularities extend
Cross each other at about 45 degrees, so the top of each convex
While locking while crushing each other,
And joints can be manufactured by extrusion.
It becomes easy to build.

According to the connecting structure of the second aspect , both ends of the joint
Is pressed into the connecting hollow portion of each member to be connected.
The top of the convex part is crushed on the opposing surface and adheres tightly and connects firmly
Is done. For this reason, a pair of connected members
Can be reliably connected. Also, the direction in which the irregularities extend
Since they intersect each other, the tops of each convex part crush each other.
While connecting and pressing the connected member and the joint.
Can be manufactured by extrusion molding.
You.

According to the connection structure of the third aspect , in addition to the same effects as those of the first or second aspect, the connection strength is increased.
can do.

[0037]

[Brief description of the drawings]

FIG. 1 is a partially exploded perspective view of a fabric upholstery frame to which a first embodiment of the present invention is applied.

FIG. 2 is a perspective view of a joint.

FIG. 3 is a front view of a frame.

FIG. 4 is a partial plan view of the band plate.

FIG. 5 is a partial perspective view of a strip forming a joint.

FIG. 6 is a partial cross-sectional view showing a state where a joint is connected to a member to be connected;

FIG. 7 is a partial cross-sectional view of a modification of the frame piece.

FIG. 8 is a perspective view of a joint according to a second embodiment.

FIG. 9 shows an end of a frame piece of a fabric upholstery frame to which the third embodiment is applied.
FIG .

FIG. 10 is a view showing a frame piece of a fabric upholstery frame to which the fourth embodiment is applied.
It is an end elevation .

FIG. 11 is an end view of a frame piece of a fabric upholstery frame to which the fifth embodiment is applied.

FIG. 12 is an end view of a frame piece of a fabric upholstery frame to which the sixth embodiment is applied.

FIG. 13 is an end view of a frame piece of a frame to which the seventh embodiment is applied.

FIG. 14 is a rear view of the frame.

FIG. 15 is an end view of a frame piece of a frame to which the eighth embodiment is applied.

FIG. 16 is a view showing a frame piece of a fabric upholstery frame to which the ninth embodiment is applied.
It is an end elevation .

FIG. 17 is a side view of the joint .

FIG. 18 is a partially enlarged view of FIG.

FIG. 19 shows a frame of a fabric upholstery frame to which the tenth embodiment is applied.
FIG .

FIG. 20 is a partially enlarged view of FIG.

FIG. 21 is an end view of a frame piece of a cloth upholstery frame to which the eleventh embodiment is applied.

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) F16B 12/20 A47G 1/10 B44D 3/18 F16B 12/46 F16B 4/00

Claims (3)

(57) [Claims] 1. A connector comprising a pair of connected members having a connecting hollow portion on opposing surfaces, and a joint having press-fit portions at both ends for press-fitting the connecting hollow portion, and a top portion is crushed at the time of press-fitting. In a connection structure in which a mountain-shaped unevenness is formed on at least one of an inner peripheral surface of the connection hollow portion and an outer peripheral surface of the press-fit portion.
The hollow portion for connection has a rectangular cross section, and has an inner peripheral surface.
The joint having the irregularities arranged in a circumferential direction, wherein the joint has a flat V-shape.
And the surface is perpendicular to the direction of the bend
A connection structure having the irregularities arranged in various directions . 2. A pair of a pair having hollow portions for connection on opposing surfaces.
The connected member and the press-fit portion that press-fits into the connection hollow portion are both
With a joint at the end, the peak being crushed at the time of press fitting
The concave / convex shape is formed on the inner peripheral surface of the connection hollow portion and the press-fit portion.
Connection structure formed on at least one of the outer peripheral surfaces of
The hollow portion for connection has a rectangular cross section, and has an inner peripheral surface.
Having the irregularities arranged in the circumferential direction, the joint is bent V-shaped
And the surface of the plate is bent from end to end.
A connection structure , characterized in that the connection structure has the irregularities arranged in a line . 3. Each of said pair of connected members is connected to said connecting member.
The connection structure according to claim 1 or 2, wherein the connection structure has a plurality of connection hollow portions .