JPH0717849Y2 - Corner joint structure of prefabricated furniture - Google Patents

Description

[Detailed Description of the Invention] << Industrial Application Field >> The present invention relates to a corner joining structure of prefabricated furniture, and in particular, ends of bar-shaped frame members forming a skeleton of furniture are connected via corner joint members. TECHNICAL FIELD The present invention relates to improvement of a corner joining structure of prefabricated furniture that is joined to each other.

<< Conventional Technology >> Conventionally, as a corner portion joining structure of a prefabricated furniture in which ends of rod-shaped frame members forming a skeleton of the prefabricated furniture are joined to each other through a corner joint member, The one shown in FIG. 3 is known.

That is, in this joint structure, as shown in the figure,
The corner joint member 100 has connecting rods 1 orthogonal to each other.
While 01 is projected in three directions and provided integrally,
Each of the rod-shaped frame members 200 that are arranged in the vertical, horizontal and height directions of the assembled furniture to form its skeleton has a fitting hole 201 formed in each end face along each axial direction thereof,
The respective frame members 200 have respective fitting holes 201 fitted into the connecting rods 101 and are connected at right angles to each other.

Further, as shown in FIG. 4, a corner joint member
Each connecting rod 101 and each frame member 200 of 100 is firmly fastened and fixed to each other from the inside of the furniture with a screw 300, and a screw insertion for inserting the screw 300 into the frame member 200. A hole 202 is formed in the connecting rod 101, and a screw hole (not shown) for screwing the screw 300 is formed in the connecting rod 101.

<< Problems to be Solved by the Invention >> However, in the above-mentioned conventional corner-joint structure of prefabricated furniture, the positional dimensions of the screw hole formed on the connecting rod 101 side and the screw insertion hole 202 formed on the frame member 200 side, and If the dimensional accuracy such as the shape dimensions of each part is not strictly controlled, the positions of the screw holes and the screw insertion holes 202 will not be easily determined during assembly, and not only the alignment work for them will be complicated.
In the worst case, the positions of the screw insertion holes 202 and the screw holes may not be aligned with each other and may be misaligned, resulting in extremely difficult assembly, and it takes time to manufacture each of these parts, resulting in low productivity. There were challenges.

The present invention has been made in view of the above circumstances, and an object thereof is to firmly fix and fasten a fitting portion between a frame member and a connecting rod of a corner joint member and to have excellent assembling workability, and dimensions of each part. An object of the present invention is to provide a corner joining structure for prefabricated furniture with good productivity that can ease the control of accuracy as much as possible.

<Means for Solving the Problems> In order to achieve the above-mentioned object, the present invention joins the ends of a plurality of rod-shaped frame members forming the skeleton of assembled furniture to each other through corner joint members. In a corner joining structure of prefabricated furniture, a fitting hole formed along the axial direction at the end of each frame member, and a partition wall at the end of each frame member parallel to the fitting hole. A guide groove formed in the partition wall, a slit formed in the partition wall along the axial direction, a plurality of connecting rods integrally formed in the corner joint member so as to be fitted in the fitting hole; A screw hole formed in the connecting rod so as to face the slit, an auxiliary connecting rod that is inserted and mounted in the guide groove so as to be slidably movable in the axial direction, and is separate from the corner joint member, and orthogonal to the slit. Formed by penetrating the auxiliary connecting rod And a screw inserted into the screw insertion hole and the slit and screwed into the screw hole.

<< Operation >> In the corner joining structure of the assembling type furniture having the above-described configuration, the plurality of frame members are fitted at their respective end portions to the connecting rods of the corner joint member and are connected to each other through the corner joint member. . At this time, the screw hole formed in each connecting rod is exposed to the slit formed in the partition wall portion between the fitting hole of each frame member and the guide groove. The auxiliary connecting rod inserted into the guide groove of the frame member is moved to a position where the screw insertion hole formed in the auxiliary connecting rod matches the screw hole of the connecting rod facing the slit. A screw is inserted through the screw insertion hole, and the screw is screwed into the screw hole of the connecting rod through the slit. Then, by tightening the screw, the partition wall portion is sandwiched between the connecting rod and the auxiliary connecting rod, and the fitting portion between the frame member and the connecting rod of the corner joint member is firmly fastened and fixed.

<< Embodiment >> A preferred embodiment of the present invention will be described in detail below with reference to the accompanying drawings.

FIG. 1 is an exploded perspective view showing a corner joining structure of prefabricated furniture according to the present invention.

In the figure, 2 is a bar-shaped frame member that is arranged in the vertical, horizontal and height directions of the assembled furniture to form its skeleton.
Fitting holes 21 each having a hexagonal cross section are formed on the end faces of each of the frame members 2 along the axial direction.

A guide groove 22 is formed at the end of each frame member 2 in parallel with the fitting hole 21, and a partition wall 24 between the guide groove 22 and the fitting hole 21 has an axial direction of the frame member 2. A slit 23 having a width dimension through which a screw described later can be inserted is formed along the groove.

On the other hand, 1 is a corner joint member, and this corner joint member 1 is integrally provided with three connecting rods 11 which are orthogonal to each other and project in three directions. The cross-sectional shape of each connecting rod 11 corresponds to the fitting hole 21 of the frame member 2 and is formed into a hexagonal shape, and the fitting hole 21 of each frame member 2 is fitted into the connecting rod 11. The three frame members 2 are connected to each other at a right angle. Further, each connecting rod 11 is provided with a screw hole 11 at a position facing the slit 23 when the connecting rod 11 is fitted into the fitting hole 21.
1 is formed.

Further, the auxiliary connecting rod 3 is inserted and mounted in the guide groove 22 so as to be slidable in the longitudinal direction. A screw insertion hole 31 is formed in the auxiliary connecting rod 3 by inserting the auxiliary connecting rod 3 into the auxiliary connecting rod 3. The tip of the screw 32 inserted into the inserting hole 31 is fitted into the fitting hole 21 through the slit 23. It is adapted to be screwed into the screw 111 of the connecting rod 11 that is installed.

That is, in the corner joining structure of the assembling type furniture of the present embodiment configured as described above, the partition wall 24 is sandwiched between the auxiliary connecting rod 3 and the connecting rod 11 by tightening the screw 32, and the connecting rod 11 is connected. The fitting portion between the frame member 2 and the frame member 2 is firmly fastened and fixed.

Then, when screwing the screw 32 into the screw hole 111 of the connecting rod 11, the auxiliary connecting rod 3 slidable in the guide groove 22 is moved along the longitudinal direction of the guide groove 22, and the auxiliary connecting rod 3 is moved. The position of the screw insertion hole 31 formed in the rod 3 is matched with the position of the screw hole 111 formed in the connecting rod 1.

That is, with reference to the screw hole 111 side of the connecting rod 11, the auxiliary connecting rod 3 is moved and adjusted so that the screw insertion hole 31 of the auxiliary connecting rod 3 matches the screw hole 111, and the screw 32 is screwed. Therefore, the screw holes 111 and the screw insertion holes 31 can be easily aligned with each other, and the assembling workability is improved as much as possible.

Further, since the auxiliary connecting rod 3 can clamp and fix the frame member 2 at any position within the guide groove 22, the screw hole 11 of the connecting rod 11 can be fixed.
If the first side is within the movement adjustable range of the auxiliary connecting rod 3, the positions of the screw insertion hole 31 and the screw hole 111 can be surely aligned with each other, and the assembly is not disabled. Furthermore, the dimensional accuracy such as the geometrical dimensions and the positional dimensions of the respective parts such as the frame member 2 and the corner joint member 1 that are combined with each other can be relaxed as much as possible, and the productivity can be improved as much as possible.

<Effect> As described above in detail in the embodiments, the present invention is an assembly type in which ends of a plurality of rod-shaped frame members forming a skeleton of assembly-type furniture are joined to each other via a corner joint member. A corner joining structure of furniture, a fitting hole formed in the end surface of each frame member along the axial direction, and a guide groove formed in the end portion of each frame member parallel to the fitting hole, Slits formed in the partition wall between the guide groove and the fitting hole along the axial direction, and a plurality of connecting rods formed integrally with the corner joint member so as to project into the fitting hole. , A screw hole formed in the connecting rod so as to face the slit, an auxiliary connecting rod that is slidably inserted into the guide groove, and penetrates the auxiliary connecting rod so as to be orthogonal to the slit. Formed with the screw insertion hole, the screw insertion hole and the slit A screw that is inserted into and screwed into the screw hole,
Since it is configured with, the following excellent effects are exhibited.

(1) The partition wall can be sandwiched between the auxiliary connecting rod and the connecting rod by tightening the screw, and the fitting portion between the connecting rod and the frame member can be firmly fastened and fixed.

(2) When screwing the screw into the screw hole of the connecting rod, move the auxiliary connecting rod so that the screw insertion hole of the auxiliary connecting rod is aligned with the screw hole side of the connecting rod with reference to the screw hole side of the connecting rod. Since the screws are adjusted and screwed together, it is easy to align the screw holes with the screw insertion holes, and the assembling workability is improved as much as possible.

(3) Since the auxiliary connecting rod can clamp and fix the frame member at any position in the guide groove, if the screw hole side of the connecting rod is within the movement adjustable range of the auxiliary connecting rod, the screw insertion The positions of the holes and the screw holes can be surely aligned with each other, and the assembly will not be disabled.

(4) It is possible to reduce the dimensional accuracy such as the shape dimension and the position dimension of each part such as the frame member and the corner joint member that are combined with each other as much as possible, thereby improving the productivity as much as possible.

[Brief description of drawings]

1 and 2 show a preferred embodiment of a corner joining structure for prefabricated furniture according to the present invention. FIG. 1 is an exploded perspective view thereof, FIG. 2 is a plan view of a screw fastening portion, and FIG. 3 to 4 are an exploded perspective view showing a conventional joining structure and a plan view of a screw fastening portion. 1 …… Corner joint member 11 …… Connecting rod 111 …… Screw hole 2 …… Frame member 21 …… Fitting hole 22 …… Guide groove 23 …… Slit 24 …… Partition wall 3 …… Auxiliary connecting rod 31 …… Screw Insertion hole 32 …… Screw

Claims (1)

[Scope of utility model registration request] 1. A corner joining structure for prefabricated furniture in which the ends of a plurality of rod-shaped frame members forming the skeleton of the prefabricated furniture are joined to each other through a corner joint member. Portion formed along the axial direction, a guide groove formed in the end portion of each frame member in parallel with the fitting hole through a partition wall, and the partition wall along the axial direction. Formed slits, a plurality of connecting rods integrally formed in the corner joint member so as to project into the fitting holes, and screw holes formed in the connecting rods so as to face the slits, An auxiliary connecting rod that is inserted in the guide groove so as to be slidably movable in the axial direction and is separate from the corner joint member, and a screw insertion formed through the auxiliary connecting rod so as to be orthogonal to the slit. Insert into the hole, the screw insertion hole and the slit Corner joint structure of the knockdown furniture, characterized by comprising a screw screwed into the threaded hole is.