JP2022158730A - Knockdown structure - Google Patents

Abstract

To provide a knockdown structure that facilitates assembly and that can be provided at a low price.by keeping costs down.SOLUTION: A knockdown structure 10 of the present invention includes: loading parts 14; and frame parts 22 that constitute frames 20 for supporting the loading parts 14. The frame parts 22 contain at least three prism parts 30 composed of square columns. In the prism parts 30, there is provided a notched part 32 that is formed as a notch. For the notched part 32 of one prism part 30, other prism parts 30 are fitted, and the three prism parts 30 can be three-dimensionally assembled so that longitudinal directions X intersect at each other.SELECTED DRAWING: Figure 9

Description

The present invention relates to structures such as tables and chairs.

2. Description of the Related Art Conventionally, there has been provided an assembly type structure such as a table provided with a surface for loading objects and a chair provided with a seat on which a person sits. For example, Patent Literature 1 below discloses a collapsible table used for camping or the like. In the table of Patent Literature 1, leg members are connected by joints to form a skeleton, and a top plate can be attached to the skeleton.

JP 2019-193740 A

However, in the table of Patent Literature 1, it is necessary to use joints to assemble the leg members, and assembly is troublesome. In addition, many members such as frames and joints are required, which increases the manufacturing cost.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide an assembly type structure that is easy to assemble and that can be provided at a low cost.

(1) The prefabricated structure of the present invention, which is provided to solve the above-mentioned problems, comprises a loading part on which objects can be loaded or a person can sit, and a framework part that constitutes a framework for supporting the loading part. , wherein the skeleton part includes at least three prismatic parts made of rectangular timbers, the prismatic parts are provided with notches formed as notches, and one of the It is possible to three-dimensionally assemble the three prismatic parts such that the other prismatic parts are fitted into the cutouts of the prismatic parts so that the longitudinal directions intersect each other.

In the prefabricated structure of the present invention, by fitting other prismatic parts into the cutouts formed in the prismatic parts, the three prismatic parts can be assembled to assemble a framework for supporting the loading parts. Thus, according to the assembly type structure of the present invention, the framework can be easily assembled.

In addition, in the prefabricated structure of the present invention, since the members forming the framework (framework) are square timbers, the members (framework parts) that form the framework can be easily manufactured, and the manufacturing cost can be reduced. be able to. As a result, the prefabricated structure of the present invention can be provided at a low cost.

Here, "sanpo-gumi" is known as a technique in the construction field for assembling three rectangular timbers. Assembling three square timbers in a triangular assembly is also conceivable as a method of constructing the framework of a prefabricated structure. was there.

As a result of further investigation by the inventor of the present invention, three rectangular timbers are formed with U-shaped cutouts, and other rectangular timbers are fitted into the cutouts so that the cutouts of the three timbers are mutually connected. It has been found that if the rectangular timber is fitted, a strong joint structure can be obtained without forming a columnar portion on the timber.

(2) The prefabricated structure of the present invention provided based on the above knowledge has the notch as a U-shaped notch, and the three prismatic parts that are three-dimensionally assembled are: In the case of prismatic part A, prismatic part B, and prismatic part C, respectively, the prismatic part B is fitted into the notch of the prismatic part A, and the prismatic part C is fitted into the notch of the prismatic part B. are fitted, and in a state in which the prismatic part A is fitted into the notch of the prismatic part C, a junction is formed in which these three prismatic parts are joined so as to intersect each other. is.

According to the above configuration, the three prismatic parts can be firmly joined without using a joint member.

(3) In the prefabricated structure of the present invention, the length of the notch in the width direction is the notch width, the depth of the notch is the notch depth, and the length of the side in cross-sectional view of the prismatic part is the side In terms of length, the notch width of the notch formed in the prismatic part A and the length of at least one side of the prismatic part B are the same size, and The notch width of the notch formed in the prism part C and the length of at least one side of the prismatic part C are equal to each other, and the notch width of the notch formed in the prismatic part C and the prism It is preferable that at least one of the side lengths of the part A is the same size.

According to the above-described configuration, it is possible to firmly fit the prismatic part into the notch and suppress rattling.

(4) In the prefabricated structure of the present invention, the length of the notch in the width direction is the notch width, the depth of the notch is the notch depth, and the length of the side in cross-sectional view of the prismatic part is the side In terms of length, the prismatic part A, the prismatic part B, and the prismatic part C all have the same length L1 of the four sides in a cross-sectional view, and the It is preferable that the notch width is set to the dimension L1 equivalent to the dimension L1, and the notch depth is set to the dimension L2 that is approximately half the dimension L1.

According to the above-described configuration, it is possible to firmly fit the prismatic part into the notch and suppress rattling.

(5) The prefabricated structure of the present invention preferably includes a joint member that connects the two skeletal parts or connects the skeletal part and another member.

(6) In the prefabricated structure of the present invention, when the three prismatic parts to be three-dimensionally assembled are prismatic part A, prismatic part B, and prismatic part C, the framework parts include at least two The prismatic part A, at least two prismatic parts B, at least one prismatic part C, and a plurality of beam parts are included, and the prismatic part A and the prismatic part B constitute a leg. At least one pair of the legs may be provided, and the prism part C and the beam part may form a beam connecting the pair of legs.

According to the above-described configuration, it is possible to suitably configure an assembly type structure having a large outer shape, such as a table, and stably support the loaded parts.

According to the present invention, it is possible to provide an assembly type structure that is easy to assemble and that can be provided at a low cost with reduced costs.

1 is a perspective view showing a prefabricated structure according to an embodiment of the present invention; FIG. FIG. 2 is a perspective view showing the frame of the knockdown structure of FIG. 1; FIG. 2 is a side view showing the knockdown structure of FIG. 1; 2 shows a skeleton part of the prefabricated structure of FIG. 1; (a) shows prismatic part A and prismatic part B, (b) shows prismatic part C, and (c) shows beam part. FIG. 2 is a perspective view showing a joint member of the knockdown structure of FIG. 1; 2 shows a connecting portion of the loading part and the beam part of the prefabricated structure of FIG. 1 and a connecting part of the beam part and the prism part; (a) is a plan view, and (b) is a sectional view taken along the line I-I' of FIG. 6(a). FIG. 2 is a perspective view showing a notch of a prismatic part of the knockdown structure of FIG. 1; 1. It is a figure which shows the procedure which joins the prismatic part A and prismatic part B of the knockdown structure of FIG. 1. It is a figure which shows the procedure which joins the prismatic part A, the prismatic part B, and the prismatic part C of the knockdown structure of FIG.

Hereinafter, an assembly type structure 10 according to an embodiment of the present invention will be described with reference to the drawings.

The prefabricated structure 10 can be configured by assembling parts 12 to form a predetermined structure (table, chair, etc.). As shown in FIG. 1, the knockdown structure 10 of this embodiment is used as a table or a bench as an example.

Although the knockdown structure 10 of this embodiment is used as a table, the knockdown structure of the present invention is not limited to this embodiment. For example, the prefabricated structure of the present invention may be applied to shelves for loading objects, chairs and benches for people to sit on, and the like.

As shown in FIGS. 1 and 2, the prefabricated structure 10 comprises a plurality of parts 12. As shown in FIG. More specifically, the prefabricated structure 10 comprises a loading part 14 (see FIG. 1) that constitutes a loading part for loading objects or for people to sit on, and a frame 20 that supports the loading parts 14. and a skeleton part 22 (see FIG. 2).

As shown in FIG. 1, the loading part 14 is a member capable of forming a flat surface (table surface). More specifically, the loading part 14 of the present embodiment has a gridiron shape formed by connecting a plurality of plate members (see FIG. 6). As a result, the loading parts 14 can be rolled or folded into a compact shape. Further, as shown in FIG. 6, positioning recesses 16 are formed in the vicinity of the ends of the loading parts 14 for fitting beam parts 24, which will be described later.

In addition, in the prefabricated structure 10 of the present embodiment, the slatted loading parts 14 are shown as an example, but the prefabricated structure of the present invention is not limited to this embodiment. For example, in the prefabricated structure of the present invention, the loading parts may be a single plate-shaped member, or they may be foldable such as two-fold or three-fold, and multiple parts can be attached to the framework. may be Moreover, the loading parts are not limited to those constituting the surface, and may be anything as long as an object can be loaded or a person can sit thereon.

A skeleton 20 supports the load part 14 . As shown in FIGS. 2 and 3, the skeleton 20 is formed by assembling a plurality of skeleton parts 22. As shown in FIG. More specifically, as shown in FIG. 2, the framework parts 22 forming the framework 20 include a plurality of (five in this embodiment) prismatic parts 30 and a plurality of (two in this embodiment) beam parts. 24 are included, and by assembling these skeleton parts 22, a framework for supporting the loading parts 14 can be formed.

As shown in FIGS. 2 and 4(c), the beam part 24 is made of a prismatic piece of wood (square timber) having a predetermined length and a predetermined size when viewed in cross section. As shown in FIGS. 4C and 5, the beam part 24 is provided with a fitting recess 25 as a fitting hole for fitting a projection 42 of a joint member 40, which will be described later.

As shown in FIGS. 2, 4(a), and 4(b), the prismatic part 30 is composed of a prismatic piece of wood (square lumber) having a predetermined length and a predetermined size when viewed in cross section. . Specifically, as shown in FIG. 7, the prismatic part 30 uses a rectangular parallelepiped rectangular bar having a substantially square cross section.

In the following description, the length of the side of the prismatic part 30 in a cross-sectional view may be simply referred to as "side length D1". In addition, of the four surfaces of the prismatic part 30, the side length D1 of the surface provided so as to be crossed by the notch 32 is simply referred to as "side length D1a", and the notch 32 is provided so that it crosses. The side length D1 of the surface adjacent to the surface may be described simply as "side length D1b".

The other prismatic part 30 is fitted into the notch 32 of one prismatic part 30, and the three prismatic parts 30 can be assembled three-dimensionally so that the longitudinal directions intersect each other. (See Figures 8 and 9).

In the following description, the three prismatic parts 30 that are three-dimensionally assembled may be described as "prismic part 30A", "prism part 30B", and "prism part 30"C.

As shown in FIG. 2, of the prismatic parts 30, prismatic parts 30A and prismatic parts 30B that constitute leg portions 36, which will be described later, have a shape in which both ends are obliquely cut. Further, as shown in FIG. 7, the prismatic part 30 is provided with a notch 32 formed as a U-shaped notch.

The cutout portion 32 is a cutout having a predetermined depth in a direction crossing the longitudinal direction of the prismatic part 30 . More specifically, as shown in FIG. 7, the notch 32 is formed by cutting a part of the prismatic surface of the prismatic part 30, and crosses one of the four surfaces of the prismatic part 30. It is designed to

As shown in FIG. 4(a), among the prismatic parts 30, the prismatic parts 30A and the prismatic parts 30B that constitute the leg portion 36 are provided with one notch portion 32 at a substantially middle position in the longitudinal direction. Moreover, as shown in FIG. 4(b), two notches 32 are provided in a prismatic part 30C that functions as a beam that connects a pair of legs 36 among the prismatic parts 30. As shown in FIG. More specifically, the prismatic part 30C is provided with notches 32 near both ends in the longitudinal direction.

In the following description, the length of the notch 32 in the width direction (longitudinal direction of the prismatic part 30) is described as "notch width D2", and the depth of the notch of the notch 32 is described as "notch depth D3". may be explained as

In the prefabricated structure 10 of the present embodiment, the prismatic part 30A, the prismatic part 30B, and the prismatic part 30C have the same side length D1a and side length D1b of the dimension L1. That is, each of the prismatic part 30A, the prismatic part 30B, and the prismatic part 30C has a substantially square shape with a side length D1 of the dimension L1 in a cross-sectional view.

Further, in the prefabricated structure 10 of the present embodiment, the notch width D2 of the notch portion 32 formed in each of the prismatic part 30A, the prismatic part 30B, and the prismatic part 30C is set to the dimension L1 which is equivalent to the dimension L1. (see FIGS. 8 and 9). Furthermore, as shown in FIG. 5, the notch depth D3 of the notch 32 formed in each of the prismatic part 30A, the prismatic part 30B, and the prismatic part 30C is set to a dimension L2 that is approximately half the dimension L1.

That is, in the prefabricated structure 10 of the present embodiment, the side length D1b of the prismatic parts 30A, 30B, and 30C (the width dimension of the surface where the notch 32 forms a U-shape) and the The cutout width D2 of the cutout portion 32 that has been formed has a dimension (dimension L1) that matches.

More specifically, as shown in FIG. 8A, in the knockdown structure 10 of the present embodiment, the notch width D2 of the notch 32 formed in the prismatic part 30A and the side length of the prismatic part 30B D1b has the same size (dimension L1). Further, as shown in FIG. 9(a), the notch width D2 of the notch 32 formed in the prismatic part 30B and the side length D1b of the prismatic part 30C are of the same size (dimension L1). Further, as shown in FIG. 9(a), the notch width D2 of the notch portion 32 formed in the prismatic part 30C and the side length D1b of the prismatic part 30A are of the same size (dimension L1).

As a result, the knockdown structure 10 can firmly fit the prismatic part 30 into the notch 32 and suppress rattling.

The joint member 40 is for connecting a plurality of parts 12 (a plurality of skeletal parts 22 or a skeletal part and another member). As shown in FIG. 5, the joint member 40 is formed by forming a convex portion 42 on a plate-like metal member. Further, the joint member 40 is formed with a through hole 43 for inserting a screw or the like. In addition, in the knockdown structure 10 of the present embodiment, the prism part 30 and the beam part 24 are joined together via a joint member 40 (see FIG. 5).

As shown in FIG. 2, the knockdown structure 10 of the present embodiment includes two prism parts 30A, two prism parts 30B, one prism part 30C, and two A beam part 24 is provided. Further, in the knockdown structure 10 of the present embodiment, the prismatic parts 30A and the prismatic parts 30B constitute the legs 36 . That is, in the knockdown structure 10 of the present embodiment, a pair of leg portions 36 configured by the prismatic part 30A and the prismatic part 30B are provided. Furthermore, in the knockdown structure 10 of the present embodiment, the prism parts 30C and the beam parts 24 form beams that connect the pair of legs 36 .

As described above, in the prefabricated structure 10 of the present embodiment, a pair of legs 36 are provided, and a prismatic part 30C connecting the pair of legs 36 (prism parts 30A and 30B) and a beam part 24 are provided. . As a result, a structure having a large outer shape such as a table can be suitably configured, and the loading parts 14 can be stably supported.

<Regarding the joint structure of the parts>
Next, a procedure for assembling the parts 12 in the knockdown structure 10 and a joining structure in which the parts 12 are joined will be described.

In the following description, the longitudinal direction of the prismatic part 30 may be simply referred to as "longitudinal direction X". Further, the longitudinal direction X of the prismatic part 30A is simply referred to as "longitudinal direction Xa", the longitudinal direction X of the prismatic part 30B is simply referred to as "longitudinal direction Xb", and the longitudinal direction X of the prismatic part 30C is simply referred to as "longitudinal direction Xc". May be described and explained.

In the assembly type structure 10 , the skeleton parts 22 are first assembled to form the framework 20 . More specifically, first, the prism part 30A and the prism part 30B are assembled so as to cross each other to form the leg portion 36. As shown in FIG. Also, the prism part 30C and the beam part 24 are connected so as to connect the pair of leg parts 36 . In this manner, the framework 20 of the knockdown structure 10 is constructed.

Here, the three prism parts 30 (prism parts 30A, 30B, and 30C) are assembled three-dimensionally so that their longitudinal directions intersect each other.

More specifically, as shown in FIG. 8A, first, the prismatic part 30B is fitted into the notch 32 of the prismatic part 30A. More specifically, the prismatic part 30B is fitted into the notch 32 of the prismatic part 30A so that the wall surface of the notch 32 of the prismatic part 30A and the prism surface of the prismatic part 30B are in surface contact. As a result, the prism parts 30A and 30B are arranged so that the longitudinal direction Xa and the longitudinal direction Xb intersect to form a cross (substantially perpendicular to each other) (see FIG. 8B).

Next, as shown in FIG. 9A, the prismatic part 30C is joined to the prismatic part 30A and the prismatic part 30B that are connected. More specifically, the prismatic part 30C is fitted into the notch 32 of the prismatic part 30B while the wall surface of the notch 32 of the prismatic part 30C and the prismatic surface of the prismatic part 30A are in surface contact.

In this way, as shown in FIG. 9B, the wall surface of the notch 32 of the prismatic part 30A and the prismatic surface of the prismatic part 30B are in surface contact (the prismatic part 30B is in contact with the wall surface of the notch 32 of the prismatic part 30A). ), and the state in which the wall surface of the notch 32 of the prismatic part 30B and the prismatic surface of the prismatic part 30C are in surface contact (the state in which the prismatic part 30C is surrounded by the wall surface of the notch 32 of the prismatic part 30B) becomes.

As a result, the prismatic part 30A, the prismatic part 30B, and the prismatic part 30C are arranged so that the longitudinal direction Xa, the longitudinal direction Xb, and the longitudinal direction Xc intersect each other to form a cross (substantially perpendicular to each other). . As a result, a joint portion 35 (connection) is formed in which these three prismatic parts 30 are joined so as to cross each other (substantially perpendicularly).

In this manner, the three prism parts 30 (prism parts 30A, 30B, and 30C) are three-dimensionally assembled such that their longitudinal directions intersect each other. Further, as shown in FIG. 9B, when the prismatic parts 30A, 30B, and 30C are assembled to form the joint 35, the prismatic parts 30A and 30B intersect the longitudinal direction X and the longitudinal direction X. Both directions are restricted. Further, the movement of the prism part 30C in the direction crossing the longitudinal direction Xc is restricted.

In this way, at the joining portion 35, the other prismatic part 30 is fitted into the notch 32 of one prismatic part 30, and the three prismatic parts 30 are joined so that the notch 32 and the prismatic part 30 mesh with each other. As a result, the three prismatic parts 30 can be firmly joined without using a joining member such as a joint member.

In addition, in the prefabricated structure 10, the framework 20 that supports the loading parts 14 by assembling the three prismatic parts 30 by a simple work of fitting the other prismatic parts 30 into the notches 32 formed in the prismatic parts 30. can be assembled. Thus, according to the knockdown structure 10, the frame 20 can be easily assembled.

In addition, in the knockdown structure 10, since the members (the prismatic parts 30 and the beam parts 24) forming the frame 20 are rectangular timbers, these members can be easily manufactured, and the manufacturing cost can be reduced. be able to. As a result, the knockdown structure 10 can be provided at a low cost.

After assembling the prismatic parts 30A, 30B, 30C, the beam part 24 is attached to the prismatic part 30. - 特許庁The beam part 24 is attached to the prism part 30 via the joint member 40 . More specifically, the joint member 40 is first fitted to the end of the prismatic part 30 , and the joint member 40 is attached to the prismatic part 30 by inserting a screw (not shown) or the like into the through hole 43 . Next, the beam part 24 is attached so that the projection 42 of the joint member 40 is fitted into the fitting recess 25 of the beam part 24 . Thereby, the beam part 24 is positioned with respect to the prism part 30 .

In this way, the framework parts 22 (the prism parts 30 and the beam parts 24) are assembled to form the framework 20. FIG.

After that, the loading parts 14 are attached to the framework 20 . More specifically, the loading parts 14 are attached to the framework 20 in alignment with the positions where the ends of the beam parts 24 are fitted into the positioning recesses 16 of the loading parts 14 . As a result, the loading parts 14 are attached to the framework 20 in a positioned state.

The knockdown structure 10 is assembled as a table by the above procedure. Further, as described above, the prismatic part 30 includes the joint portion 35 having a strong joint structure. Therefore, the knockdown structure 10 can be provided with sufficient load resistance.

In addition, when the parts 12 are separated from each other, the knockdown structure 10 has parts 12 (prism parts 30 and beam parts 24) made up of rectangular timbers and slatted parts 12 (loading parts 14). there is Therefore, it can be compact and not bulky when stored or carried.

Although the assembly type structure 10 according to the embodiment of the present invention has been described above, the present invention is not limited to the above-described embodiment.

For example, in the prefabricated structure 10 according to the above-described embodiment, the prism parts 30A, 30B, and 30C may be grounded to form legs (tripod type, etc.). Also, the number of legs 36 may be one, or three or more.

Furthermore, the prefabricated structure of the present invention may not include beam parts (for example, when there is only one leg).

Further, in the above-described embodiment, an example in which the prismatic part 30 has a square cross-sectional shape is shown, but the present invention is not limited to the above-described embodiment, and the prismatic part has a rectangular cross-sectional shape. (The side length D1b and the side length D1a may be different dimensions).

Although the embodiments of the present invention have been described above, the present invention is not limited to these descriptions. Appropriate design changes made by those skilled in the art with respect to the above-described embodiments are also included in the scope of the present invention as long as they have the features of the present invention.

INDUSTRIAL APPLICATION This invention can be suitably employ|adopted as an assembly-type table, a chair, etc.

10 Prefabricated Structure 14 Loading Parts 20 Frame 22 Frame Parts 24 Beam Parts 25 Fitting Recess 30 Prism Parts 30A Prism Parts 30B Prism Parts 30C Prism Parts 32 Notch 35 Joining Part 36 Leg 40 Joint Member D1 Side Length D2 Notch Width D3 Notch depth X Longitudinal direction Xa Longitudinal direction Xb Longitudinal direction Xc Longitudinal direction

Claims (6)

Loading parts for loading things or on which people can sit,
a skeleton part that constitutes a skeleton that supports the loading parts,
The skeleton parts include at least three prismatic parts made of rectangular timbers,
The prismatic part is provided with a notch formed as a notch,
A prefabricated structure capable of three-dimensionally assembling three prismatic parts such that the other prismatic part is fitted into the notch of one of the prismatic parts and the longitudinal directions of the prismatic parts intersect with each other.
The notch is a U-shaped notch,
When the three prismatic parts assembled three-dimensionally are referred to as prismatic part A, prismatic part B, and prismatic part C,
The prismatic part B is fitted into the notch of the prismatic part A,
The prismatic part C is fitted into the notch of the prismatic part B,
2. The method according to claim 1, wherein in a state in which the prismatic part A is fitted into the notch of the prismatic part C, a junction is formed by joining the three prismatic parts so as to intersect each other. A prefabricated structure as described.
The length of the notch in the width direction is the notch width, the depth of the notch is the notch depth,
When the length of the side in cross section of the prismatic part is the side length,
The notch width of the notch formed in the prismatic part A and the length of at least one of the sides of the prismatic part B are equal in size,
The notch width of the notch formed in the prismatic part B and the length of at least one side of the prismatic part C are equal in size,
3. The prefabricated structure according to claim 2, wherein the notch width of the notch formed in the prismatic part C and the length of at least one side of the prismatic part A are equal in size.
The length of the notch in the width direction is the notch width, the depth of the notch is the notch depth,
When the length of the side in cross section of the prismatic part is the side length,
The prismatic part A, the prismatic part B, and the prismatic part C are
The side lengths of the four sides in a cross-sectional view are all equal to the dimension L1,
4. The assembly type according to claim 2 or 3, wherein the notch width of each of the notch portions is a dimension L1 equivalent to the dimension L1, and the notch depth is a dimension L2 which is approximately half the dimension L1. Structure.
5. The prefabricated structure according to any one of claims 1 to 4, further comprising a joint member for connecting two said skeleton parts or for connecting said skeleton part and another member.
When the three prismatic parts assembled three-dimensionally are referred to as prismatic part A, prismatic part B, and prismatic part C,
The skeletal parts include
at least two of the prismatic parts A;
at least two of the prismatic parts B;
at least one of the prismatic parts C;
Includes multiple beam parts and
The prismatic part A and the prismatic part B constitute legs, and at least one pair of the legs are provided,
The prefabricated structure according to any one of claims 1 to 5, wherein said prism part C and said beam part form a beam connecting said pair of legs.

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