JP2023164528A - Frame body of knockdown furniture - Google Patents

Abstract

To provide a frame body of knockdown furniture that can prevent a rigidity decline and the play in the knockdown furniture, by suppressing rotation displacement around the shaft center of a beam member for a frame member, even in the occasion of a twisting force added to the beam member.SOLUTION: A frame body 1 includes: a frame member 10L; a first beam member 21 that is put across the frame member 10L; and a fitting member 30 that connects the first beam member 21 and the frame member 10L. The fitting member 30 comprises: a sheet metal member 31 that is engaged with the frame member 10L; a first resin member 32 that is fixed on the sheet metal member 31; and a second resin member 33 that is fixed to the end part of the first beam member 21. With the insertion part 31d of the sheet metal member 31 inserted in the insertion groove 32e of the first resin member 32, relative rotation is regulated around the shaft center of the first beam member 21, of the sheet metal member 31 and the first resin member 32.SELECTED DRAWING: Figure 2

Description

The present invention relates to a frame for assembling furniture, and more particularly to a technique for simplifying the work when assembling a frame for assembling furniture.

BACKGROUND ART Conventionally, assembly furniture configured by connecting a plurality of frame members is known (for example, see Patent Document 1 and Patent Document 2). In the assembled furniture described in Patent Document 1 and Patent Document 2, a beam member is spanned horizontally over a frame member whose axis direction is directed in the vertical direction, and a member such as a top plate is mounted on this beam member. The configuration to be installed is described.

Japanese Patent Application Publication No. 2003-61759 Japanese Patent Application Publication No. 2007-195721

As in the above patent document, in a configuration in which a beam member is connected to a frame member, when a force in a torsional direction is applied to the beam member, the beam member is rotationally displaced around the axis relative to the frame member. There is. The rotational displacement that occurs in the beam member in this way causes a decrease in rigidity and rattling in the assembled furniture.

The present invention has been made in view of the above-mentioned circumstances, and the problem to be solved by the present invention is that even when a torsional force is applied to the beam member, the beam member is not fixed around the axis relative to the frame member. It is an object of the present invention to provide a frame body for assembled furniture that can prevent a decrease in rigidity and rattling in the assembled furniture by suppressing the rotational displacement of the furniture.

In order to solve the above problems, the present invention provides a frame for assembled furniture configured as follows.

A plurality of frame members that are rectangular tube members that are connected perpendicularly to each other, a beam member that spans the frame members that are adjacent to each other in parallel, and an assembly member that connects the beam member and the frame member. A frame for assembled furniture, the assembly member comprising: a sheet metal member that is engaged with a connecting hole opened in mutually opposing surfaces of the frame member; and a first frame member that is fixed to the sheet metal member. a resin member; and a second resin member fixed to an end of the beam member and combined with the first resin member, the sheet metal member having the connection hole in the frame member. A plate-shaped insertion portion is formed parallel to the opened surface, an insertion groove into which the insertion portion can be inserted is formed in the first resin member, and the insertion portion is inserted into the insertion groove. A frame of assembled furniture that is inserted to restrict relative rotation of the sheet metal member and the first resin member about the axis of the beam member.

The frame of the assembled furniture according to the present invention described above has the following effects.

According to the frame of the assembled furniture according to the present invention, even when a force in a torsional direction is applied to the beam member, the rotational displacement of the beam member about the axis relative to the frame member is suppressed. Decrease in rigidity and wobbling can be prevented.

FIG. 1 is a perspective view showing assembled furniture using a frame according to an embodiment of the present invention. FIG. 3 is a perspective view showing a connection structure of a beam member by an assembly member to a frame member. (a) is a perspective view showing a connection structure between a second resin member and a beam member, and (b) is a perspective view showing a connection structure between a sheet metal member and a first resin member. (a) and (b) are perspective views in the vertical direction showing the second resin member, respectively. FIG. 3 is a perspective view showing a procedure for connecting a beam member to a frame member. FIG. 3 is a sectional view showing a procedure for connecting a beam member to a frame member. FIG. 3 is a sectional view showing a connection structure of a beam member to a frame member. FIG. 3 is a cross-sectional view showing a support structure for a sheet metal member in an assembly member. FIG. 3 is a rear view showing the support structure of the sheet metal member in the assembly member.

Below, with reference to FIG. 1, a frame body (hereinafter simply referred to as "frame body") 1 of an assembled furniture according to an embodiment of the present invention and an assembled furniture 1A assembled using the frame body 1 will be described. explain. In this specification, the direction of the frame 1 is defined by arrows shown in each figure. By assembling and arranging various options (additional parts, equipment, etc.) inside the frame 1 according to the present embodiment, a variety of assembled furniture can be constructed according to the user's wishes. be able to. In addition, by arranging frames 1 that are made up of the same or multiple types of assembled furniture, the user can freely customize the space.

The frame 1 includes a plurality of frame members (a first frame member 10S, a second frame member 10L, and a third frame member 10M) that are rectangular tube members connected orthogonally to each other, and these frame members 10S. A first connecting member 12 and a second connecting member 13, which are metal members that connect the frames 10L and 10M, and a second frame member 10L, which is spanned between the parallel adjacent second frame members 10L, with the axial direction facing the front and back direction. It includes one beam member 21 and an assembly member 30 that connects the first beam member 21 and the second frame member 10L.

As shown in FIG. 1, the frame 1 includes four first frame members 10S provided in parallel along the front-rear direction, four second frame members 10L provided in parallel along the up-down direction, and a frame. 1 and two third frame members 10M provided in parallel along the left-right direction at the upper part of the frame member 1. In the frame body 1, the frame members 10S, 10L, and 10M are provided orthogonally to each other. More specifically, each first frame member 10S connects the upper end and the lower end of the second frame member 10L in the front-rear direction via the first connecting member 12 and the second connecting member 13. Further, the third frame member 10M connects the upper end portion of the second frame member 10L in the left-right direction via the first connection member 12.

In this embodiment, the third frame member 10M is arranged only at the upper part of the frame 1, but the third frame member 10M may also be arranged at the lower part of the frame 1. Further, in the lower part of the frame body 1, it is also possible to provide only the third frame member 10M instead of the first frame member 10S.

In the frame body 1, each of the frame members 10S, 10L, and 10M has substantially the same cross-sectional shape orthogonal to the axial direction, except that the frame members 10S, 10L, and 10M have different lengths. Therefore, by making the processing steps common when manufacturing each of the frame members 10S, 10L, and 10M, it is possible to suppress processing costs and the like. In this embodiment, among the frame members 10S, 10L, and 10M, the first frame member 10S is the shortest, and the second frame member 10L is the longest. Further, in the frame body 1, each of the frame members 10S, 10L, and 10M has a common cross-sectional shape of a square having a side of several tens of mm.

As shown in FIG. 1, in the first frame member 10S, three connecting holes 11, which are two pores, are opened on one of the four sides (the upper surface of the lower first frame member 10S). In addition, in the second frame member 10L, connection holes 11 are formed in two adjacent surfaces out of the four surfaces in a line in the axial direction. In the second frame member 10L, the connecting hole 11 has two pores that open along the vertical direction and are provided adjacent to each other and in parallel. The connecting hole 11 is used when assembling the first beam member 21 to the frame 1.

Each frame member 10S, 10L, 10M is connected by a first connecting member 12 and a second connecting member 13. Specifically, as shown in FIG. 1, at the four upper corners of the frame 1, the first frame member 10S, the second frame member 10L, and the third frame member 10M each have one first connecting member 12. are connected. Further, at the four lower corners of the frame 1, the first frame member 10S and the second frame member 10L are connected by one second connecting member 13 each.

As shown in FIG. 1, a total of four leg members 14 are attached to the lower surface of the first frame member 10S in the lower part of the frame 1. By adjusting the extension lengths of the leg members 14 from the first frame member 10S, the frame 1 can be installed horizontally on the floor. Furthermore, the frame 1 has improved rigidity by connecting the central portions of the two first frame members 10S facing each other on the upper side with an intermediate frame member 15.

In the frame body 1, first beam members 21 with their axial centers facing in the front and back directions are assembled on both left and right sides of the second frame members 10L that are adjacent to each other in the front and rear directions. The first beam member 21 is an example of a beam member according to the present invention. Specifically, as shown in FIG. 2, the end of the first beam member 21 and the second frame member 10L are connected via an assembly member 30. Like the frame members 10S, 10L, and 10M, the first beam member 21 is a square tube member formed by bending a metal plate.

The assembled furniture 1A according to this embodiment is configured as a desk unit. Specifically, in the frame 1, the support beam member 22 is connected to the central portion of the two first beam members 21 via the assembly member 30. Then, by fixing the top plate 51 to the upper surfaces of the two first beam members 21 and the support beam member, the assembled furniture 1A is configured as a desk unit.

Further, the central portions of the two first frame members 10S facing each other on the lower side of the frame body 1 are connected by an intermediate beam member 23. By connecting the intermediate beam member 23 and the support beam member 22 with the support member 24, the load applied to the top plate 25 is supported.

The type of assembled furniture configured using the frame 1 is not limited to the desk unit according to this embodiment, and can be configured in a wide variety of configurations according to the user's intention. For example, by changing the options for assembling it to the frame 1, it is possible to configure the assembled furniture as a chair unit, OA equipment unit, bookshelf unit, wardrobe unit, display shelf unit, dining table unit, storage unit, etc. .

Next, a connection structure of the first beam member 21 to the second frame member 10L by the assembly member 30 in the frame body 1 will be explained using FIGS. 2 to 9. In addition, in FIGS. 2 to 9, the assembly member 30 at the left rear part of the frame 1 is shown. In this embodiment, all the assembly members 30 are configured in the same way.

As shown in FIG. 2, the assembly member 30 includes a sheet metal member 31, a first resin member 32, and a second resin member 33. As shown in FIG. 5, the first resin member 32 is assembled to the second frame member 10L via the sheet metal member 31. As shown in FIG. 3(a), the second resin member 33 is fixed to the end of the first beam member 21. As shown in FIG. In this state, by connecting the first resin member 32 and the second resin member 33 using the screw member S and the nut member N, the first beam member 21 is fixed to the second frame member 10L.

The sheet metal member 31 is constructed by bending a single metal plate as shown in FIG. 3(b). The sheet metal member 31 includes a substrate portion 31a fixed to the first resin member 32, a raised portion 31b raised perpendicularly to the substrate portion 31a and bent, and both sides of the raised portion 31b opposite to the substrate portion 31a. It has two hook parts 31c bent to the side. The two hook portions 31c extend upward in the sheet metal member 31. The upper portion of the connecting portion between the upright portion 31b and the hook portion 31c is formed as a contact surface 31g. Further, a through hole 31f penetrating through the substrate portion 31a is opened approximately at the center of the substrate portion 31a.

In the sheet metal member 31, a first insertion portion 31d is formed between the base plate portion 31a and the raised portion 31b, and is parallel to the surface of the second frame member 10L in which the connection hole 11 is opened. Similarly, a second insertion portion 31e is formed at the upper end of the upright portion 31b and is parallel to the surface of the second frame member 10L in which the connection hole 11 is opened.

The sheet metal member 31 is engaged with the connection hole 11 opened in the mutually opposing surfaces of the second frame member 10L (the surfaces facing inward in the front-rear direction in the frame 1). Specifically, as shown in FIG. 5, the two hook portions 31c are engaged with the two pores in the connecting hole 11, so that the sheet metal member 31 is assembled to the second frame member 10L.

As shown in FIG. 3(b), the first resin member 32 is a member formed in a substantially plate shape. The first resin member 32 includes a plate-shaped support portion 32a, two inclined protrusions 32b erected at the front end of the support portion 32a, and two locking portions formed on the opposite side of the inclined protrusions 32b. A claw portion 32c is provided. A first inclined surface 32g that slopes downward toward the rear side (outside in the axial direction of the first beam member 21) is formed on the upper surface of the inclined protrusion 32b.

In the first resin member 32, a through hole 32d penetrating through the support portion 32a is opened approximately at the center of the support portion 32a. A contact portion 32f is formed between the two inclined protrusions 32b, with which the tip of the base plate portion 31a of the sheet metal member 31 comes into contact. Furthermore, an insertion groove 32e into which the first insertion portion 31d of the sheet metal member 31 can be inserted is formed between the two locking claw portions 32c.

As shown in FIG. 5, the first resin member 32 is fixed to the sheet metal member 31. Specifically, the other end portion of the substrate portion 31a is locked by the locking claw portion 32c while the tip portion of the substrate portion 31a of the sheet metal member 31 is in contact with the abutted portion 32f. At this time, as shown in FIG. 9, the first insertion portion 31d of the sheet metal member 31 is inserted into the insertion groove 32e of the first resin member 32. This restricts the relative rotation of the sheet metal member 31 and the first resin member 32 around the rotation axis (around the axis of the first beam member 21) with the axial direction directed in the front-rear direction.

As shown in FIG. 2, the second resin member 33 is a prismatic member fixed to the end of the first beam member 21. As shown in FIG. Specifically, as shown by the broken line arrow in FIG. 3(b), the second resin member 33 is inserted in the axial direction of the first beam member 21 from the opening 21a at the end of the first beam member 21. A cutout groove 21b is formed in the lower surface of the first beam member 21 near the opening 21a. Further, an engaged hole 21c is opened in the lower surface of the first beam member 21 adjacent to the notch groove 21b.

As shown in FIGS. 4A and 4B, the second resin member 33 includes a case portion 33a that defines the outer shape of the second resin member 33. As shown in FIGS. On the lower surface of the second resin member 33, an accommodating portion 33b, which is a recess for accommodating the substrate portion 31a of the sheet metal member 31 and the first resin member 32, is formed. As shown in FIG. 6, the upper surface of the housing portion 33b (the lower surface of the second resin member 33) has a second groove that slopes downward toward the rear side (outside in the axial direction of the first beam member 21). An inclined surface 33i is formed. The first inclined surface 32g of the first resin member 32 and the second inclined surface 33i of the second resin member 33 are the same as those of the first resin member 32 and the second resin member 33, as shown in FIG. contact each other when assembled.

An inserted portion 33c, which is a recessed portion into which the raised portion 31b of the sheet metal member 31 is inserted, is formed on the rear end surface of the second resin member 33. At the front end of the lower surface of the second resin member 33, an engaging protrusion 33d that protrudes downward is formed. When the second resin member 33 is inserted into the opening 21a of the first beam member 21, the engaging protrusion 33d engages with the engaged hole 21c as shown in FIG. A member 33 is fixed to the first beam member 21 .

On the rear end surface of the second resin member 33, a nut insertion portion 33e into which the nut member N is inserted is formed below the inserted portion 33c. As shown in FIG. 5, the nut member N inserted into the nut insertion portion 33e from the rear of the second resin member 33 has its front, rear, right and left sides in contact with the inner wall of the nut insertion portion 33e, thereby restricting its relative displacement, and It is fixed inside the resin member 33. A through hole 33g into which the screw member S is inserted is opened below the location where the nut member N is fixed.

As shown in FIG. 4(b), two contact portions 33f are formed downwardly on the upper surface of the inserted portion 33c. As shown in FIG. 8, when the first resin member 32 and the second resin member 33 are assembled, the abutting portion 33f and the abutted surface 31g of the sheet metal member 31 abut. This restricts the relative displacement of the second resin member 33 with respect to the sheet metal member 31.

In the second resin member 33, a second insertion groove 33h into which the second insertion portion 31e of the sheet metal member 31 can be inserted is formed at the upper end of the insertion portion 33c. When the first resin member 32 and the second resin member 33 are assembled, the second insertion portion 31e is inserted into the second insertion groove 33h, so that the sheet metal member 31 and the second Relative rotation with the resin member 33 around the rotation axis (around the axis of the first beam member 21) with the axial direction directed in the front-rear direction is restricted.

The second resin member 33 is fixed to the end of the first beam member 21 and is combined with the sheet metal member 31 and the first resin member 32 . Specifically, as shown in FIG. 5, with the first resin member 32 and the sheet metal member 31 fixed, and the hook portion 31c of the sheet metal member 31 engaged with the connecting hole 11, the first beam member is inserted from above. 21 and the second resin member 33 are placed on the first resin member 32 and the sheet metal member 31. At this time, the substrate portion 31a of the sheet metal member 31 and the first resin member 32 are inserted into the notch groove 21b and accommodated in the accommodating portion 33b of the second resin member 33 as shown in FIG.

As described above, when the first beam member 21 and the second resin member 33 are placed on the first resin member 32 and the sheet metal member 31, as shown in FIG. The inclined surface 32g and the second inclined surface 33i of the second resin member 33 contact each other. Further, the contact portion 33f of the second resin member 33 contacts the contact surface 31g of the sheet metal member 31. Further, the second insertion portion 31e of the sheet metal member 31 is inserted into the second insertion groove 33h of the second resin member 33.

In the above state, as shown in FIGS. 5 and 7, the screw member S is inserted from below into the through hole 32d, the through hole 31f, and the through hole 33g, and is fixed inside the second resin member 33. Screw together with nut member N. Thereby, the sheet metal member 31, the first resin member 32, and the second resin member 33 are firmly connected, and the first beam member 21 is assembled to the second frame member 10L.

When the first beam member 21 is assembled to the second frame member 10L, the first insertion portion 31d of the sheet metal member 31 is inserted into the insertion groove 32e of the first resin member 32, as shown in FIG. has been done. Therefore, the relative rotation of the sheet metal member 31 and the first resin member 32 about the axis of the first beam member 21 is restricted. Thereby, even when a torsional force is applied to the first beam member 21, rotational displacement of the first beam member 21 about the axis relative to the second frame member 10L can be suppressed. That is, it is possible to prevent a decrease in rigidity and wobbling in the assembled furniture 1A.

Further, when the first beam member 21 is assembled to the second frame member 10L, the second insertion portion 31e of the sheet metal member 31 is inserted into the second cover of the second resin member 33, as shown in FIG. It is inserted into the insertion groove 33h. Therefore, the relative rotation of the sheet metal member 31 and the second resin member 33 about the axis of the first beam member 21 is restricted. Thereby, rotational displacement around the axis of the first beam member 21 relative to the second frame member 10L can be further suppressed. Specifically, in order to restrict the rotational displacement of the first beam member 21 at a location further away from the lower end of the hook portion 31c, which is the axis of rotational displacement of the first beam member 21, It is possible to reduce the force generated in the second insertion portion 31e and the second insertion groove 33h when rotation occurs. Note that it is also possible to adopt a configuration in which the second insertion portion 31e is not formed in the sheet metal member 31, and the second insertion groove 33h is not formed in the second resin member 33.

Further, when the first beam member 21 is assembled to the second frame member 10L, as shown in FIG. The second inclined surface 33i is in sliding contact with each other. Thereby, the relative position of the first resin member 32 and the second resin member 33 in the axial direction of the first beam member 21 is defined. In this way, according to the frame 1 according to the present embodiment, the position of the first beam member 21 in the axial direction with respect to the second frame member 10L can be easily determined.

Furthermore, when the first beam member 21 is assembled to the second frame member 10L, as shown in FIG. comes into contact. In this manner, in this embodiment, the relative displacement of the second resin member 33 with respect to the sheet metal member 31 is regulated. Thereby, when a downward load is applied to the first beam member 21, the load can be integrally supported by the assembly member 30, so that concentration of bending load on the sheet metal member 31 can be suppressed.

As shown in FIG. 2, the connecting hole 11 formed in the second frame member 10L of the frame body 1 has two fine holes that open along the vertical direction and are provided adjacently and in parallel. Further, the sheet metal member 31 includes two hook portions 31c formed by bending a single sheet metal, as shown in FIG. 3(b). Then, the two hook portions 31c are engaged with the two pores in the connecting hole 11, so that the sheet metal member 31 is assembled to the second frame member 10L. Thereby, by forming the connecting hole 11 with two fine holes, the connecting strength of the sheet metal member 31 can be ensured more than when forming with one hole. Further, by forming the connecting hole 11 with a fine hole, it is possible to prevent foreign matter from entering the connecting hole 11.

In this embodiment, as shown in FIG. 5, the hook portion 31c of the sheet metal member 31 extends upward. As a result, even if the assembly member 30 is displaced upward due to the first beam member 21 receiving a force from below, the sheet metal member 31 continues to be engaged with the connecting hole 11, so that the first beam member 21 can be prevented from separating from the second frame member 10L.

In this embodiment, as shown in FIGS. 7 and 8, the lower surface of the assembly member 30 (the lower surface of the first resin member 32 and the second resin member 33) is the same as the lower surface of the first beam member 21. It is configured to be located on a flat surface. Thereby, the lower surface of the first beam member 21 can be formed flat, and the design of the assembled furniture 1A can be improved.

1 Frame (frame of assembled furniture)
10S First frame member 10L Second frame member
10M Third frame member 11 Connection hole
12 First connecting member 13 Second connecting member
14 Leg member 15 Intermediate frame member
21 First beam member (beam member)
21a Opening 21b Notch groove
21c Engaged hole 22 Second beam member
23 Intermediate beam member 24 Support member
25 Top plate 30 Assembly parts
31 Sheet metal member 31a Board part
31b Standing part 31c Hook part
31d First insertion part (insertion part)
31e Second insertion part 31f Through hole
31g Abutted surface 32 First resin member
32a Support part 32b Slanted projection part
32c Locking claw portion 32d Through hole
32e Inserted groove 32f Abutted part
32g First inclined surface 33 Second resin member
33a Case part 33b Storage part
33c Inserted part 33d Engagement protrusion
33e Nut insertion part 33f Contact part
33g Through hole 33h Second insertion groove
33i Second inclined surface S Threaded member
N Nut member

A plurality of frame members that are rectangular tube members extending in the vertical direction, a beam member that is a rectangular tube member that extends in the horizontal direction and spans the adjacent frame members in parallel, and connecting the beam members and the frame members. an assembling member, the assembling member having a hook portion that engages with a connecting hole formed in the frame member, and the beam member housing the assembling member therein, The frame of the assembled furniture is connected to the frame member by a screw member via the assembly member in a state in which the hook portion is engaged with the connection hole.

Claims (1)

A plurality of frame members that are rectangular tube members that are connected perpendicularly to each other, a beam member that spans the frame members that are adjacent to each other in parallel, and an assembly member that connects the beam member and the frame member. A frame for assembled furniture, comprising:
The assembly member includes a sheet metal member that is engaged with a connecting hole opened on mutually opposing surfaces of the frame member, a first resin member that is fixed to the sheet metal member, and an end portion of the beam member. a second resin member coupled to the first resin member in a fixed state;
A plate-shaped insertion portion is formed in the sheet metal member and is parallel to a surface of the frame member in which the connection hole is opened,
An insertion groove into which the insertion portion can be inserted is formed in the first resin member,
A frame of assembled furniture, wherein the insertion portion is inserted into the insertion groove to restrict relative rotation of the sheet metal member and the first resin member about the axis of the beam member. .

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