JP3143824B2 - Frame - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a frame used as, for example, a picture frame or a sash frame by assembling members into a frame shape, and more particularly to a joint structure of a corner portion thereof.

[0002]

2. Description of the Related Art For example, when assembling a frame such as a picture frame or a sash frame, cut end faces of shapes (frame members) cut obliquely at 45 ° are joined to each other, and a bolt insertion hole provided in one of the shapes is passed through. The formed tapping bolts are screwed into the tapping holes of the other sections to join these sections at right angles.

However, tightening of the tapping bolt does not cause the upper frame to be displaced upward as a result of excessively pulling one profile, for example, the vertical frame, to the other profile, for example, the upper frame. I can't say.

Therefore, in order to eliminate such a displacement and prevent the appearance of the frame from being poor, for example, Japanese Utility Model Application Laid-Open No.
In JP-A-4, two fitting legs are formed in parallel over the entire length in the longitudinal direction on the outer surface of a shape member serving as a frame member, and the diagonally cut joint end of the fitting leg is placed on the mating member side. There has been proposed an inner frame in which a locking piece is formed by bending and the locking piece is engaged with a joining end of a mating member.

[0005]

However, in the picture frame described in the above-mentioned publication, a cut portion of the locking piece and the fitting leg piece is formed on the outer peripheral side of the joint portion. Although it can be applied without difficulty to the inner frame stored inside the frame, it can be applied to the frame such as the outer frame and sash frame because the cut parts of these locking pieces and fitting leg pieces are exposed to the outside. There is a problem that it is impossible to solve such a problem, and to prevent the misalignment prevention structure such as the locking piece from being seen from the outside. In the frame body, there has been a problem in preventing the displacement of the frame material at the joint.

[0006]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems in the conventional frame body, and does not cause the displacement of the frame material at the joint corner portion, and furthermore, a mechanism for this purpose is provided outside. An object of the present invention is to provide a frame that is not exposed and can be used as an outer frame or a sash frame.

[0007]

According to a first aspect of the present invention, there is provided a frame body comprising a member having an obliquely cut joint end face,
The other member, a corner fitting disposed between the two members, and a bolt for joining the joining end surfaces of the two members by abutting each other, the corner fitting is mounted inside one member, and inside the other member. Is formed with a rib portion, and a bolt inserted from one member side is screwed into a tapping hole portion of the other member in a state where the corner fitting is in contact with the small end portion of the rib portion of the other member cut obliquely, and The bent portion formed at the contact portion with the rib edge portion of the metal fitting is configured to be in contact with the outer peripheral side of the frame portion of the rib portion of the other member. The configuration is a means for solving the conventional problem described above.

Further, the frame according to claim 2 of the present invention comprises:
Similarly, it has a plurality of members, a corner fitting, and a bolt, and the corner fitting has a first contact part and a second contact part, and the corner fitting is mounted inside one of the members. A rib portion is formed at a position on the outer peripheral side of the inner peripheral surface forming wall portion inside the other member.
The second contact portion abuts on the fore end of the obliquely cut rib portion of the other member, and the second abutment portion abuts on the fore end of the inner peripheral surface forming wall portion of the other member. A bolt inserted from the side of the member is screwed into a tapping hole of the other member, and as an embodiment of the frame according to claim 2 of the present invention, in the frame according to claim 3, Has a configuration in which the first contact portion and the second contact portion of the corner fitting are provided at positions separated from each other in the longitudinal direction of one member, the longitudinal direction of the other member, and the out-of-plane direction of the frame body. It is characterized by:

[0009]

In the frame body according to the first aspect of the present invention, a rib portion is formed inside the other member, and a corner fitting is mounted inside one member, and the corner fitting is cut obliquely. Since it is in contact with the small end of the rib portion of the member, the movement of the other member is restricted to a regular position by the corner fitting when the bolt is tightened at the time of joining the members, and the displacement between the members is prevented. At this time, a bent portion is formed at a contact portion of the rib portion of the corner fitting with the small end portion, and since this bent portion is in contact with the outer peripheral side of the frame of the rib portion of the other member, the other The contact state between the member and the corner fitting becomes stable. Further, since the corner fitting is housed inside the member and cannot be seen from the outside, the appearance is not impaired even if these frames are applied to an outer frame or a general sash frame.

[0010] In the frame according to the second aspect of the present invention, the rib portion is formed at a position on the outer peripheral side of the inner peripheral surface forming wall portion inside the other member, and the first member is formed inside the one member.
A corner fitting having a contact portion and a second contact portion is attached, and the first contact portion of the corner fitting contacts the fore end of the rib portion of the other member that is obliquely cut and the second contact portion. Since the contact portion is in contact with the small end of the peripheral surface forming wall portion of the frame inside the other member, the movement of the other member is restricted to a regular position by the corner fitting when bolting at the time of joining the members. The positional displacement between them is prevented. At this time, since the relative movement of the member is prevented by the first contact portion and the second contact portion of the corner fitting, the displacement of the other member with respect to the one member is more effectively prevented. Further, since the corner fitting is housed inside the member, the appearance is not impaired as in the frame according to the first aspect.

In a frame according to a third aspect of the present invention, the first contact portion and the second contact portion of the corner fitting are in the longitudinal direction of one member. And the longitudinal direction of the other member and the out-of-plane direction of the frame body,
Since the other member is supported by the first contact portion of the corner fitting and the second contact portion separated from the first contact portion with respect to the one member, the joining between the members is more stable. Therefore, the displacement between the members is more reliably prevented.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings.

FIGS. 1 to 4 illustrate an embodiment of a frame according to the present invention. FIG. 1 (a) is an explanatory front view of a joint corner, FIG. 1 (b) and FIG. (C) shows cutting lines BB and C- in FIG.
It is sectional explanatory drawing about C respectively.

As shown in FIG. 1 (a), the frame 1 is made of a vertical frame member 2 (one member) and a horizontal frame member 3 (the other member) made of an aluminum alloy hollow extruded shape. It has a connected structure.

As shown in FIGS. 1 (b) and 1 (c), the vertical frame member 2 and the horizontal frame member 3 are formed of hollow members having the same shape, and the inner wall 2a and the inner wall 2a forming the inner peripheral surface of the frame 1 are formed. 3a, outer walls 2b and 3b forming an outer peripheral surface, front walls 2c and 3c forming a front surface, and rear walls 2d and 3d forming a back surface
Are provided.

Further, in this embodiment, first tapping holes 2e, 3e and second tapping are provided on the inner surfaces of the inner walls 2a, 3a and the outer walls 2b, 3b of the vertical frame member 2 and the horizontal frame member 3. Hole portions 2f, 3f are respectively formed, and rib portions 2g, 3g and 2h, 3h are provided on the inner surface sides of the front walls 2c, 3c and the rear walls 2d, 3d at opposing positions near the outer walls 2b, 3b. Each formed,
It protrudes toward the center of the hollow part.

As shown in FIG. 1 (a), the vertical frame member 2 and the horizontal frame member 3 having the above-mentioned structures are so arranged that small-edge ends which are obliquely cut at an angle of 45 ° abut against each other. 2, the two tapping bolts 5 and 6 inserted from the side of the vertical frame member 2 are connected to the second and first tapping members of the horizontal frame member 3 as shown in the side view of the frame body 1 in FIG. It is joined by screwing into the holes 3f and 3e, respectively, to form corners.

The corner fitting 4 has a thickness slightly smaller than a gap dimension formed between the ribs 2g, 3g and 2h, 3h of the vertical frame member 2 and the horizontal frame member 3 and the outer walls 2b and 3b. 3 is formed by bending a steel plate into a hat shape in cross section. As shown in FIG. 3, the substrate portions 4a, 4a have a flat plate shape and function as first contact portions, and the substrate portion 4a is formed by bending. , 4a projecting forward and functioning as a second abutting portion, and a female screw hole 4c for fixing the corner fitting 4 to the vertical frame member 2 is provided in one of the substrate portions 4a. In addition, a bolt insertion hole 4d for inserting a tapping bolt 6 for joining the vertical and horizontal frame members 2 and 3 is formed substantially at the center of the projection 4b.

A brief description will now be given of how to assemble the frame 1 according to the present invention and the principle of preventing the displacement of the frame material.

First, the joining end of the vertical frame member 2 and the horizontal frame member 3 is cut obliquely at 45 °.

Then, the board portions 2a, 2a of the corner fittings 4 are inserted into gaps formed between the rib portions 2g, 2h of the vertical frame member 2 and the outer wall 2b, and as shown in FIG.
a, 2a are positioned so as to slightly protrude from the diagonally cut joint end surface, and flathead screws 7 are passed through the screw insertion holes formed in the outer wall 2b of the vertical frame member 2 and the countersunk screws 7 of the substrate 2a of the corner fitting 4 are positioned. By screwing the corner fitting 4 into the female screw hole 4c, the corner fitting 4 is fixed to a substantially central portion in the hollow portion of the vertical frame member 2. At this time, the projection 4b, which is the second contact portion of the corner fitting 4, protrudes from the joining end face of the vertical frame member 2 whose upper end is obliquely cut, and the lower end thereof contacts the tapping hole 2e of the vertical frame member 2. It will be in contact.

Next, the joining end surface of the horizontal frame member 3 cut obliquely is brought into contact with the joining end surface of the vertical frame member 2, and a tapping bolt is passed through a bolt insertion hole 2 i formed in the outer wall 2 b of the vertical frame member 2. 5 is the second tapping hole 3f of the horizontal frame 3
And the tapping bolt 6 also passed through a bolt through hole 2j formed in the outer wall 2b of the vertical frame member 2 is inserted through a bolt insertion hole 4d provided in the projection 4b of the corner fitting 4 to form the fourth frame member 3. The vertical frame member 2 and the horizontal frame member 3 are joined by being screwed into the first tapping hole 3e.

At this time, the horizontal frame member 3 is drawn to the vertical frame member 2 by the screwing of the tapping bolts 5 and 6, and the joined end faces cut obliquely adhere to each other. As shown in FIG. The ribs 3h and 3g and the first tapping hole 3e of the base 3
a, 4a (a first contact portion) and a protrusion 4b (a second contact portion), respectively, to prevent the horizontal frame member 3 from being pulled further upward in the drawing, and Since the member 3 is stopped at the normal position with respect to the vertical frame member 2, there is no displacement between the two frame members 2 and 3. In FIG. 4, the tapping bolts 5, 6 and the second tapping hole 3f are represented by imaginary lines in order to avoid confusion of the solid lines and to facilitate understanding of the operation of the displacement prevention mechanism by simplifying the drawing. It is.

In the above-described embodiment, the first and second tapping holes are formed on the inner surfaces of the inner wall and the outer wall of both frame members. It is not limited to only
For example, when the first tapping hole portion 3e is omitted and only the second tapping hole portion 3f is provided, the second contact portion 4b of the corner fitting 4 is brought into direct contact with the inner wall 3a of the horizontal frame member 3. You can do so.

Further, in the above-described embodiment, as the two frame members, a hollow portion whose hollow portion is closed by the inner walls 2a, 3a, the outer walls 2b, 3b, the front walls 2c, 3c, and the rear walls 2d, 3d. Although an example using a material has been described, in the frame according to the present invention, it is not always necessary to use a completely hollow shape material, and a hollow portion may be partially opened.

FIG. 5 shows another example of the shape of the corner metal fitting 4. In the corner metal fitting 4 according to this embodiment, the substrate parts 4a, 4a, that is, the upper end parts of the first contact parts. Is bent at a right angle to the side of the horizontal frame member 3 to form bent portions 4e and 4e which are in contact with the outer peripheral side of the rib portions 3h and 3g of the horizontal frame member 3, that is, the surface of the outer wall 3b side. I have.

By providing such bent parts 4e, 4e in the first contact parts 4a, 4a, the contact state between the corner fitting 4 and the rib parts 3g, 3h of the horizontal frame member 3 can be more stabilized. As a result, the displacement of the vertical horizontal frame members 2 and 3 can be reliably prevented, and the vertical frame member 2 of the corner fitting 4 can be prevented.
This makes it easier to set the mounting position on the device.

[0028]

As described above, according to the first aspect of the present invention,
In the frame body, a corner fitting is mounted inside one member, and a rib portion is formed inside the other member, and the corner fitting abuts on the small end of the rib portion of the other member that is cut obliquely. Since the bent portion formed at the abutting portion of the corner fitting with the rib end portion abuts on the outer peripheral side of the rib, the movement of the other member is surely performed by the corner fitting when tightening the bolt at the time of joining the members. As a result, the displacement between the members can be prevented. At this time, since the corner fitting is housed inside the member and cannot be seen from the outside, it can be applied to an outer frame or a sash frame or the like whose outer peripheral portion is not concealed by other members such as a frame material. Very good effects are achieved.

In the frame according to a second aspect of the present invention, a corner fitting having a first contact portion and a second contact portion is mounted inside one member, and a frame inside the other member. A rib portion is formed at a position on the outer peripheral side of the inner peripheral surface forming wall portion, and the first contact portion of the corner fitting comes into contact with the oblique end of the obliquely cut rib portion of the other member.
Is in contact with the edge of the edge of the wall forming the peripheral surface of the frame of the other member, so that the other member moves when the bolt is tightened at the time of joining the members by the first and second contact portions of the corner fitting. Since the members are regulated by the contact portion and the two members are positioned at the regular joint positions, not only can the positional deviation between the members be prevented more effectively, but also since the corner fitting is housed inside the members. An excellent effect of being applicable to an outer frame, a sash frame, or the like is provided without impairing the appearance, similarly to the frame according to the first aspect.

[0030] As an embodiment of the frame according to the second aspect of the present invention, in the frame according to the third aspect, the other member corresponds to the first contact portion of the corner fitting with respect to one member, and the first contact portion. Since it is supported by the second contact portion that is separated from the contact portion in the longitudinal direction of the one member, the longitudinal direction of the other member, and the out-of-plane direction of the frame, the joining between the members can be made more stable. Thus, an extremely excellent effect that the displacement between the members can be more reliably prevented.

[Brief description of the drawings]

FIG. 1A is a front view showing an embodiment of a frame according to the present invention. (B) It is sectional drawing about the cutting line BB of FIG.1 (a). (C) It is sectional drawing about cutting-plane CC of FIG.1 (a).

FIG. 2 is a side view of the frame shown in FIG.

FIG. 3 is a perspective view showing a shape of a corner fitting in the frame shown in FIG.

FIG. 4 is an explanatory view showing a principle of preventing displacement of members in the frame body according to the present invention, and is an enlarged cross-sectional view of a joint portion of the frame body.

FIG. 5 is a perspective view showing another shape of the corner fitting.

[Explanation of symbols]

REFERENCE SIGNS LIST 1 frame 2 vertical frame (one member) 3 horizontal frame (other member) 3a inner wall (peripheral surface forming wall in frame) 3e first tapping hole (tapping hole) 3g, 3h rib 4 corner fitting 4a Substrate part (first contact part) 4b Projection part (second contact part) 4e Bend part 5, 6 Tapping bolt (bolt)

Claims (3)

(57) [Claims] A first member provided with an obliquely cut joining end surface, a corner member disposed between the two members, and a bolt for joining the joining end surfaces of the two members by abutting each other; A corner fitting is attached to the inside of the other member, and a rib portion is formed inside the other member, and the corner fitting abuts on the small end of the obliquely cut rib portion of the other member to the side of one member. Is inserted into the tapping hole portion of the other member, and the bent portion formed at the contact portion with the rib end portion of the corner fitting comes into contact with the outer peripheral side of the frame of the rib portion of the other member. Frame. 2. A corner fitting comprising: one member and the other member having a diagonally cut joining end surface; a corner fitting disposed between the two members; and a bolt for joining the joining end surfaces of the two members by abutting each other. Has a first contact portion and a second contact portion, a corner fitting is mounted inside one member, and a rib is provided at a position on the outer peripheral side of the inner wall of the frame inside the other member. A first abutting portion of the corner fitting abuts on a fore end of a rib portion of the other member cut obliquely, and a second abutting portion forms a wall inside the frame inside the frame of the other member. A bolt inserted from one member side in a state of being in contact with each of the fore end portions of the other member and screwed into a tapping hole portion of the other member. 3. A first contact portion and a second contact portion of the corner fitting are provided at positions separated from each other in the longitudinal direction of one member, the longitudinal direction of the other member, and the out-of-plane direction of the frame. 3. The frame according to claim 2, wherein: