JP3293124B2 - Corner connection member of box furniture - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connecting member used for assembling box furniture such as a hanging cabinet.

[0002]

2. Description of the Related Art As shown in FIG. 2, the bottom of box furniture such as a hanging cabinet is mainly composed of a side plate A, a base plate B and a back plate C. In addition, it is common to provide back rails D ₁ , D ₂ on the back surface of the back plate C for reinforcement in the vertical direction or reinforcement in the horizontal direction.

[0003] In particular, in the case of a hanging cupboard, simply hanging from the upper part cannot withstand the weight of the cupboard and the contents stored in the cupboard, so that it is usually fixed to the wall via a back rail which is a reinforcing material. . The back rail is fixed to the back plate with fixing means such as wood screws and nails.

[0004] base plate connecting structure B and back plate C is, as the cross-sectional view of FIG. 3, connecting the back plate C and the ground plane B and obliquely nailing toward the base plate B from Yokoura桟D _1. The connection between the side plate A and the back plate C has the same connection structure as in FIG. That is, in FIG. 3, if D ₁ is regarded as a vertical back rail and B is regarded as a side plate, it is the same as the connection structure of the side plate A and the back plate C. There is also a method in which nails or wood screws are obliquely driven in or screwed in from inside the box furniture, and the back plate C and the base plate B are tied. However, it is difficult to work from the inside, so usually the work is performed from the outside as shown in FIG. .

[0005]

As described above, in the conventional method, usually, oblique nailing is carried out directly from the back surface, or a hole is made obliquely with a drill, and an oblique nailing or wood screw is made from the hole. Is screwed to connect the back plate C to the side plate A and the base plate B.

[0006] However, considerable skill and labor are required to perform an operation of oblique nailing or drilling a hole obliquely at an accurate position from the back side. Attempting to perform the above operation from the inside is more difficult because a tool such as a hammer or a drill is difficult to use, and even a skilled person requires considerable labor.

[0007] Recently, furniture such as hanging cabinets attached to houses have been unitized in order to reduce transportation costs and save inventory space, and are often assembled at installation sites. In addition, many of these unit furnitures are sold to amateurs, but when assembling, connecting the corners requires labor and skill. In particular, the base plate B, the side plate A and the back plate C
At the corner where the members intersect, the connecting portion between the back plate C and the base plate B and the connecting portion between the back plate C and the side plate A are close to each other.

[0008]

SUMMARY OF THE INVENTION The present invention is to solve the above problems by the following method. FIG. 1 shows a connection structure of a corner and a connection member thereof according to the present invention, and FIG. 4 is a detailed perspective view of the connection member. As shown in FIG. 5 or FIG. 6, the connecting member according to the present invention has a rectangular abcd as an upper surface, a rectangular efgh as a lower surface, and a difference in length between the longest side and the shortest side of the rectangular cbfg of less than 30%. A quadrangular pyramid c which is in contact with the midpoint of a diagonal line bg of d and is a base of a quadrilateral cbjg formed by one point j and b, c, g of a small circle on a triangle bfg and having d as a vertex
bjgd is a member having a shape cut out from the rectangular parallelepiped L. The radius of the small circle is １ ／ of the length of one side bc or bf of the rectangle cbfg. Notch surface dbj
Further, through holes Q and P are provided perpendicularly to the surface of the cutout surface dgj toward the ridge lines ae and he at the corners, respectively.

The notch surface dbj is approximately 2
It is inclined at 5 to 65 degrees, and similarly, the notch surface dgj
Is inclined at about 25 to 65 degrees with respect to the horizontal plane. The through-holes P and Q are ridge lines ae and h
e, the wood screws connecting the corners are screwed from above the notch surface, penetrate the corner ridges ae and he, respectively, and screwed into the main plate B as shown in FIG. B and back plate C or side plate A are connected.

As described above, the notch surface dbj is inclined at about 25 to 65 degrees with respect to the vertical plane, and the notch surface dgj is inclined at about 25 to 65 degrees with respect to the horizontal plane. The through holes P and Q provided perpendicularly to these cutout surfaces make an angle of 25 to 65 degrees with respect to both the base plate B and the side plate A.

[0011] Therefore, since the grip portion of the screwdriver which rotates and screws the wood screw can be prevented from touching the main plate B and the side plate A, the screwing operation of the wood screw is easy.

Recently, electric screwdrivers are often used for assembling boxes in a furniture / woodwork factory or a construction site. Compared to the hand-operated driver, the electric screwdriver is not only large in the base of the cone and the grip, but also equipped with an electric motor in the grip, making it difficult to handle in narrow places such as corners of box furniture. When trying to screw a wood screw from the inside, it is difficult to screw it in parallel to the side plate A or the back plate C. Therefore, it has to be screwed obliquely, but since there is no guide of the screw hole,
Screwing work is not easy.

If the connecting member according to the present invention is brought into contact with the corner of box furniture as shown in FIG. 1 and a wood screw is inserted into the through holes P and Q, the wood screw can be easily screwed with an electric screwdriver. Thereby, the three members of the side plate A, the base plate B, and the back plate C can be reliably connected.

In FIG. 1, B is the main plate, D ₁ is the horizontal rail,
C is a back plate. A wood screw inserted from a through hole Q formed in the slope djg of the connecting member penetrates the back plate C and is screwed into the base plate B to connect the two plate members. The connection between the side plate A and the back plate C can be similarly described with reference to FIG. That is,
In Figure 1, B side plates A, replacing D ₁ to Tateura桟D _2, is replaced by the through hole Q in the through hole P, the wood screws, it can be understood that the back plate C and the side plate A is connected.

[0015]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The material of the connecting member according to the present invention is as follows.
Although any of plastic, wood, metal and the like may be used, plastic can be manufactured at the lowest cost. A nail may be used instead of a wood screw, but it is desirable to use a wood screw as much as possible because the nail is easily loosened.

The box furniture is composed of a back plate C, a side plate A, and a base plate B.
Until the board is fixed with nails or wood screws,
However, since they are merely fitted into the grooves of the side plate A and the base plate B, the shape is not always stable, and the three plate materials at the corners do not always intersect exactly vertically. Therefore, when the connecting member of the present invention is brought into contact with the corners and a wood screw is screwed in, the back plate C is completely fitted into the groove of the side plate A and the base plate B, and the three plate members intersect vertically. Until it is confirmed and fixed with wood screws or the like, it is necessary to temporarily fix it by pressing it with a worker's hand. Therefore, the work is complicated and the work efficiency is not improved.

In the present invention, a double-sided pressure-sensitive adhesive tape whose surface is covered with release paper may be applied to the three surfaces of the connecting member of the present invention in contact with the above three members, namely, the bottom surface efgh, the side surface abfe and the side surface aehd. . At the time of installation work, peel off the release paper on the surface of the double-sided tape, expose the glued surface of the adhesive tape, and adhere to the corner of the box furniture,
Since the three plate members at the corners can be temporarily fixed and the connecting member of the present invention does not shift, the connecting operation is further facilitated.

Instead of applying the double-sided pressure-sensitive adhesive tape, an adhesive is applied to the bottom surface efgh, the side surface abfe, and the side surface aehd, and a release paper is stuck thereon.

In FIG. 5 or FIG. 6, each side a of the rectangular parallelepiped L
The lengths of b, bc, and bf are almost equal, but there may be a difference of up to about 30% between the longest side and the shortest side. However, it is most desirable that the rectangular parallelepiped L be a cube having the three sides equal.

FIG. 1 is a view in which the connecting member of the present invention is in contact with the lower left corner inside the box furniture, but this connecting member can also be applied to the lower right corner and the upper left and right corners. Therefore, there is no need to prepare a connecting member dedicated to each corner for left and right or up and down.

[0021]

The connecting member of the present invention is provided with through holes P and Q as guide holes for wood screws or nails.
Since the connecting member is brought into contact with the inner corner of the box furniture and a wood screw is screwed from the guide hole or a nail is driven in, the back plate C and the base plate B and the side plate A can be easily and accurately connected. This is easy even for amateurs.

Further, since the through holes P and Q form an angle of 25 ° to 65 ° with respect to the base plate and the side plate, the grip portion of a hammer or a screwdriver for screwing wood screws does not contact the side plate or the base plate. The work of connecting the parts is easy. Also, the connecting member is
If a double-sided pressure-sensitive adhesive tape coated with release paper is pasted on the surface in contact with the side plate, the base plate, and the back plate, the three plate members can be temporarily fixed, thereby increasing work efficiency.

[Brief description of the drawings]

FIG. 1 is a sectional view showing a connection structure between a base plate and a back plate according to the present invention.

FIG. 2 is an explanatory perspective view of the bottom of the box furniture.

FIG. 3 is a cross-sectional view showing a connection structure between a main plate and a back plate by a conventional method.

FIG. 4 is an explanatory perspective view of a connecting member of the present invention.

FIG. 5 is an explanatory perspective view of a connecting member of the present invention.

FIG. 6 is an explanatory perspective view of a connecting member of the present invention.

[Explanation of symbols]

A Side plate B Base plate C Back plate D ₁ Horizontal back rail D ₂ Vertical back rail P Through hole Q Through hole

Claims (3)

(57) [Claims] 1. A rectangular parallelepiped L having a rectangle (abcd) as an upper surface, a rectangle (effgh) as a lower surface, and a difference between the longest side and the shortest side of less than 30%.
g) tangent to the midpoint of the diagonal (bg) above and the triangle (bf
g) is a small circle on which the radius is a rectangle (cbf
g), take a point j in a small circle that is の of the length of one side (bc) or (bf), and from the rectangular parallelepiped L
g) as a bottom surface, and a square pyramid (cbjg) having (d) as a vertex.
d) is a member having a shape with a notch, and a notch surface (d
bj) and through-holes (P) and (Q) perpendicular to the surfaces of the cutout surfaces (dgj) toward the corner ridges (ae) and (he), respectively. Corner connection member. 2. The connecting member according to claim 1, wherein the rectangular parallelepiped L is a cube having the same length on each side. 3. A double-sided pressure-sensitive adhesive tape coated with release paper is adhered to three rectangular surfaces, or an adhesive is applied and a release paper is further adhered thereon. The connecting member according to claim 1.