JP7192414B2 - Assembled furniture frame - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a frame for knockdown furniture, and more particularly, to a technique for simplifying work when assembling a frame for knockdown furniture.

2. Description of the Related Art Conventionally, knockdown furniture configured by connecting a plurality of frame members is known (see Patent Documents 1 and 2, for example). In the knockdown furniture described in Patent Documents 1 and 2, a beam member is horizontally stretched over a frame member whose axial direction is oriented vertically, and a member such as a top plate is placed on the beam member. The configuration to place is described.

JP-A-2003-61759 JP 2007-195721 A

As in the above-mentioned patent document, in the structure in which the beam member is connected to the frame member, when a torsional force is applied to the beam member, the beam member is rotationally displaced about the axis with respect to the frame member. There is Such a rotational displacement of the beam member causes a decrease in rigidity and looseness in the knockdown furniture.

The present invention has been made in view of the above circumstances, and the problem to be solved by the present invention is to prevent the beam member from rotating around the axis of the frame member even when a torsional force is applied to the beam member. To provide a frame body for knockdown furniture capable of preventing a reduction in rigidity and rattling of the knockdown furniture by suppressing the rotational displacement of the frame.

In order to solve the above problems, the present invention provides a frame for knockdown furniture having the following structure.

(1) A plurality of frame members, which are square tube members connected perpendicularly to each other, a beam member bridged between the frame members adjacent in parallel, and an assembly member connecting the beam member and the frame member. and a frame body for knockdown furniture, wherein said assembly member is a sheet metal member engaged with a connecting hole opened in said frame member facing each other, and is fixed to said sheet metal member. a first resin member; and a second resin member that is coupled to the first resin member while being fixed to an end of the beam member, wherein the sheet metal member includes the A plate-like insertion portion is formed parallel to the surface on which the connecting hole is opened, the first resin member is formed with an insertion groove into which the insertion portion can be inserted, and the insertion portion is inserted into the cover. A frame for knockdown furniture, which is inserted into an insertion groove to restrict relative rotation of the sheet metal member and the first resin member around the axis of the beam member.

(2) The second resin member is fixed to the first resin member above the first resin member. A first inclined surface is formed that inclines downward as it goes toward the second resin member, and a second inclined surface that abuts on the first inclined surface is formed on the lower surface of the second resin member, and the first resin member When the member and the second resin member are positioned in the vertical direction, the first inclined surface and the second inclined surface are brought into sliding contact with each other, so that the second resin member moves in the axial direction of the beam member. The frame body for knockdown furniture according to (1), which defines the relative position between the one resin member and the second resin member.

(3) The second resin member is formed with a contact portion facing downward, and the sheet metal member is formed with a contacted surface contacting the contact portion and facing upward, and When the first resin member and the second resin member are assembled, the abutment between the abutting portion and the abutted surface causes the second resin member to move relative to the sheet metal member. A frame body for knockdown furniture according to (1) or (2), which regulates displacement.

(4) The connecting holes are provided in close proximity to each other in parallel with each other and are vertically open, and the sheet metal member is formed by bending a single sheet metal. any one of (1) to (3), wherein a hook portion is provided, and the sheet metal member is assembled to the frame member by engaging the two hook portions with the two holes; The frame body of the described assembly furniture.

(5) The frame for knockdown furniture according to (4), wherein the hook portion extends upward from the sheet metal member.

(6) The frame for knockdown furniture according to any one of (1) to (5), wherein the lower surface of the assembly member and the lower surface of the beam member are positioned on the same plane.

The frame body for knockdown furniture according to the present invention described above has the following effects.

According to the configuration (1), even if a torsional force is applied to the beam member, by suppressing the rotational displacement of the beam member about the axis relative to the frame member, the rigidity of the knockdown furniture is reduced. Rattling can be prevented.

With configuration (2), the beam member can be easily positioned with respect to the frame member.

According to the configuration (3), when a downward load is applied to the beam member, it is possible to suppress concentration of the bending load on the sheet metal member.

According to the configuration of (4), it is possible to prevent foreign matter from entering the connecting hole while ensuring the connecting strength of the connecting hole.

According to the configuration (5), it is possible to prevent the beam member from separating from the frame member when the beam member receives force from below.

According to the configuration of (6), it is possible to improve the design of the knockdown furniture.

BRIEF DESCRIPTION OF THE DRAWINGS The perspective view which shows the knockdown furniture using the frame which concerns on one Embodiment of this invention. FIG. 4 is a perspective view showing a connecting structure of a beam member by means of an assembly member for a frame member; (a) is a perspective view showing the connection structure between the second resin member and the beam member, and (b) is a perspective view showing the connection structure between the sheet metal member and the first resin member. (a) and (b) are vertical perspective views respectively showing a second resin member. FIG. 4 is a perspective view showing a procedure for connecting the beam member to the frame member; Sectional drawing which shows the connection procedure of the beam member with respect to a frame member. FIG. 4 is a cross-sectional view showing a connecting structure of a beam member with respect to a frame member; Sectional drawing which shows the support structure of the sheet-metal member in an assembly|attachment member. FIG. 4 is a rear view showing a support structure for the sheet metal member in the assembly member;

In the following, referring to FIG. 1, a frame of assembly furniture (hereinafter simply referred to as "frame") 1 according to an embodiment of the present invention and assembly furniture 1A assembled using the frame 1 are described. explain. In this specification, the direction of the frame 1 is defined by the arrow shown in each drawing. The frame 1 according to the present embodiment constitutes assembled furniture rich in variation according to the user's intention by assembling or arranging various options (additional parts, devices, etc.) inside. be able to. In addition, the user can freely customize the space by arranging the frame bodies 1 that constitute the same or a plurality of types of assembled furniture.

The frame body 1 includes a plurality of frame members (a first frame member 10S, a second frame member 10L, and a third frame member 10M) which are square tube members connected orthogonally to each other, and these frame members 10S and 10M. A first connecting member 12 and a second connecting member 13, which are metal members that connect 10L and 10M to each other, and a second frame member 10L that is adjacent in parallel with the second frame member 10L. It comprises one beam member 21 and an assembly member 30 connecting 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 in the front-rear direction, four second frame members 10L provided in parallel in the vertical direction, and a frame. and two third frame members 10M provided in parallel along the left-right direction on the upper part of the frame member 10M. In the frame 1, the frame members 10S, 10L, and 10M are provided perpendicular to each other. More specifically, each first frame member 10S connects the upper end portion and the lower end portion of the second frame member 10L via the first connecting member 12 and the second connecting member 13 in the front-rear direction. Also, the third frame member 10M connects the upper end portion of the second frame member 10L via the first connecting member 12 in the left-right direction.

In this embodiment, the third frame member 10M is arranged only in the upper part of the frame 1, but the third frame member 10M may be arranged in the lower part of the frame 1 as well. Further, it is also possible to provide only the third frame member 10M in place of the first frame member 10S in the lower portion of the frame 1. FIG.

In the frame 1, the frame members 10S, 10L, and 10M have substantially the same cross-sectional shape perpendicular to the axial direction, except that they have different lengths. Therefore, it is possible to reduce the processing cost and the like by sharing the processing steps when manufacturing the frame members 10S, 10L, and 10M. 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. In the frame body 1, the cross-sectional shapes of the frame members 10S, 10L, and 10M are formed in a common square shape with sides of several tens of millimeters.

As shown in FIG. 1, in the first frame member 10S, one of the four surfaces (the upper surface of the lower first frame member 10S) is provided with two connecting holes 11 at three locations. Further, in the second frame member 10L, the connecting holes 11 are formed along the axial direction on two adjacent surfaces among the four surfaces. In the second frame member 10L, the connecting holes 11 are two narrow holes that open in the vertical direction and are provided close to each other 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. As shown in FIG. Specifically, as shown in FIG. 1, at the four upper corners of the frame 1, a first frame member 10S, a second frame member 10L, and a third frame member 10M are each provided with one first connecting member 12. concatenated with At 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, respectively.

As shown in FIG. 1, in the lower part of the frame 1, a total of four leg members 14 are attached to the lower surface of the first frame member 10S. By adjusting the extension length of the leg members 14 from the first frame member 10S, the frame 1 can be installed horizontally on the floor. In addition, 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 1, the first beam members 21 are assembled on both left and right sides of the second frame members 10L, which are adjacent to each other in the front-rear direction. 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 the assembly member 30. As shown in FIG. The first beam member 21 is a rectangular tube member formed by bending a metal plate, like the frame members 10S, 10L, and 10M.

The knockdown 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 . By fixing the top plate 51 to the upper surfaces of the two first beam members 21 and the support beam members, the knockdown furniture 1A is configured as a desk unit.

In addition, the central portions of the two first frame members 10S that face each other on the lower side of the frame 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 assembly furniture configured using the frame 1 is not limited to the desk unit according to the present embodiment, and can be configured in a variety of ways according to the user's intention. For example, by changing options to be assembled to the frame 1, it is possible to configure the assembled furniture as a chair unit, an OA equipment unit, a bookshelf unit, a clothes shelf unit, a display shelf unit, a dining table unit, a storeroom unit, and the like. .

Next, the connection structure of the first beam member 21 to the second frame member 10L by the assembly member 30 of the frame 1 will be described with reference to FIGS. 2 to 9. FIG. 2 to 9 show the mounting member 30 on the left rear portion of the frame 1. As shown in FIG. In this embodiment, all assembly members 30 are similarly constructed.

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. As shown in FIG. 5, the first resin member 32 is attached to the second frame member 10L via the sheet metal member 31. As shown in FIG. As shown in FIG. 3( a ), the second resin member 33 is fixed to the end of the first beam member 21 . In this state, by connecting the first resin member 32 and the second resin member 33 with 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 formed by bending a sheet of 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 that is vertically raised and bent with respect to the substrate portion 31a, and both sides of the raised portion 31b that are opposite to the substrate portion 31a. It has two hook portions 31c bent sideways. The two hook portions 31 c extend upward from the sheet metal member 31 . The upper side of the connecting portion between the rising portion 31b and the hook portion 31c is formed as a contact surface 31g. In addition, a through hole 31f that penetrates the substrate portion 31a is opened in a substantially central portion of the substrate portion 31a.

In the sheet metal member 31, a first inserting portion 31d is formed between the base portion 31a and the rising portion 31b in parallel with the surface of the second frame member 10L on which the connecting hole 11 is opened. Similarly, a second insertion portion 31e parallel to the surface of the second frame member 10L where the connecting hole 11 is opened is formed on the upper end portion of the rising portion 31b.

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

As shown in FIG. 3B, the first resin member 32 is a substantially plate-shaped member. 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 sides of the inclined protrusions 32b. and a claw portion 32c. A first inclined surface 32g is formed on the upper surface of the inclined protrusion 32b and is inclined downward toward the rear side (the outer side in the axial direction of the first beam member 21).

In the first resin member 32, a through hole 32d passing through the support portion 32a is opened in a substantially central portion of the support portion 32a. Between the two inclined protrusions 32b, there is formed a contacted portion 32f with which the tip of the substrate portion 31a of the sheet metal member 31 is contacted. 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. As shown in FIG. Specifically, the other end of the substrate portion 31a is locked to 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 contacted portion 32f. At this time, 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. This restricts the relative rotation of the sheet metal member 31 and the first resin member 32 about the rotation axis (about 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 . Specifically, the second resin member 33 is inserted in the axial direction of the first beam member 21 through the opening 21a at the end of the first beam member 21, as indicated by the dashed arrow in FIG. 3(b). A notch groove 21b is formed in the vicinity of the opening 21a on the lower surface of the first beam member 21 . 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 has 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, a housing portion 33b, which is a concave portion for housing 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 (lower surface of the second resin member 33) of the housing portion 33b has a second groove that slopes downward toward the rear side (the outer side in the axial direction of the first beam member 21). is formed on the inclined surface 33i. The first inclined surface 32g of the first resin member 32 and the second inclined surface 33i of the second resin member 33 are, as shown in FIG. abut each other when assembled.

On the rear end surface of the second resin member 33, an inserted portion 33c, which is a concave portion into which the rising portion 31b of the sheet metal member 31 is inserted, is formed. An engaging protrusion 33d is formed at the front end portion of the lower surface of the second resin member 33 so as to protrude downward. When the second resin member 33 is inserted into the opening 21a of the first beam member 21, as shown in FIG. A member 33 is secured to the first beam member 21 .

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

As shown in FIG. 4(b), two contact portions 33f are formed downward 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 contact portion 33f and the contacted surface 31g of the sheet metal member 31 are brought into contact. 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, the upper end portion of the inserted portion 33c is formed with a second inserted groove 33h into which the second inserted portion 31e of the sheet metal member 31 can be inserted. When the first resin member 32 and the second resin member 33 are assembled, the sheet metal member 31 and the second resin member 33 are assembled by inserting the second insertion portion 31e into the second insertion groove 33h. Relative rotation about the rotation axis (about the axis of the first beam member 21) with the axis direction directed in the front-rear direction with respect to the resin member 33 is regulated.

The second resin member 33 is coupled with the sheet metal member 31 and the first resin member 32 while being fixed to the end of the first beam member 21 . Specifically, as shown in FIG. 5, the first resin member 32 and the sheet metal member 31 are fixed, and in a state where the hook portion 31c of the sheet metal member 31 is engaged with the connecting hole 11, the first beam member is mounted 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 housed in the housing 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. and the second inclined surface 33i of the second resin member 33 are in contact with each other. Further, the contact portion 33 f of the second resin member 33 contacts the contacted surface 31 g of the sheet metal member 31 . Further, the second insertion portion 31e of the sheet metal member 31 is inserted into the second inserted groove 33h of the second resin member 33. As shown in FIG.

In the above state, as shown in FIGS. 5 and 7, the screw member S is inserted from below into the through holes 32d, 31f, and 33g, and fixed inside the second resin member 33. The nut member N is screwed together. 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. It is Therefore, relative rotation of the sheet metal member 31 and the first resin member 32 around the axis of the first beam member 21 is restricted. As a result, even if a torsional force is applied to the first beam member 21, it is possible to suppress the rotational displacement of the first beam member 21 about the axis with respect to the second frame member 10L. That is, it is possible to prevent a decrease in rigidity and rattling of the knockdown 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 becomes the second cover of the second resin member 33 as shown in FIG. It is inserted into the insertion groove 33h. Therefore, relative rotation of the sheet metal member 31 and the second resin member 33 around the axis of the first beam member 21 is restricted. As a result, the rotational displacement of the first beam member 21 about the axis with respect to the second frame member 10L can be further suppressed. Specifically, the first beam member 21 is provided with a It is possible to reduce the force generated in the second insertion portion 31e and the second inserted groove 33h when rotation occurs. It is also possible to configure the sheet metal member 31 so that the second insertion portion 31e is not formed and the second resin member 33 is not formed the second inserted groove 33h.

Also, when the first beam member 21 is assembled to the second frame member 10L, as shown in FIG. The two inclined surfaces 33i are in sliding contact with each other. This defines the relative positions of the first resin member 32 and the second resin member 33 in the axial direction of the first beam member 21 . Thus, according to the frame 1 of the present embodiment, it is possible to easily position the first beam member 21 in the axial direction with respect to the second frame member 10L.

Further, when the first beam member 21 is assembled to the second frame member 10L, as shown in FIG. abuts. Thus, in this embodiment, the relative displacement of the second resin member 33 with respect to the sheet metal member 31 is restricted. As a result, when a downward load is applied to the first beam member 21 , the load can be integrally supported by the assembly member 30 , so concentration of the 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 vertically open holes provided close to each other in parallel. As shown in FIG. 3B, the sheet metal member 31 is provided with two hook portions 31c formed by bending one sheet metal. By engaging the two hook portions 31c with the two holes in the connecting hole 11, the sheet metal member 31 is assembled to the second frame member 10L. Thus, by forming the connecting hole 11 with two holes, it is possible to secure the connecting strength of the sheet metal member 31 compared to forming with one hole. In addition, by forming the connecting hole 11 with fine pores, foreign matter can be prevented 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 force applied to the first beam member 21 from below, the sheet metal member 31 continues to engage with the connecting hole 11, so that the first beam member 21 can be prevented from detaching 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) and the lower surface of the first beam member 21 are the same. It is configured to be positioned on a plane. Thereby, the lower surface of the first beam member 21 can be formed flat, and the design of the knockdown furniture 1A can be improved.

1 Frame body (frame body of assembled furniture)
10S First frame member 10L Second frame member
10M third frame member 11 connecting 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 member
31 sheet metal member 31a substrate portion
31b rising portion 31c hook portion
31d first insertion section (insertion section)
31e second insertion portion 31f through hole
31g contact surface 32 first resin member
32a Supporting portion 32b Inclined protrusion
32c locking claw portion 32d through hole
32e Inserted groove 32f Contacted portion
32g first inclined surface 33 second resin member
33a Case portion 33b Accommodating portion
33c Inserted portion 33d Engagement projection
33e nut insertion portion 33f contact portion
33g through hole 33h second inserted groove
33i Second inclined surface S Screw member
N Nut member

Claims (6)

A plurality of frame members, which are square tube members connected perpendicularly to each other, a beam member bridged between the frame members adjacent in parallel, and an assembly member connecting the beam member and the frame member. A frame body for assembly furniture, comprising:
The assembly members include a sheet metal member engaged with connecting holes opened in the mutually facing surfaces of the frame member, a first resin member 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;
The sheet metal member is formed with a plate-like insertion portion parallel to the surface of the frame member on which the connecting hole is opened,
The first resin member is formed with an insertion groove into which the insertion portion can be inserted,
A frame of knockdown furniture, which restricts relative rotation of the sheet metal member and the first resin member around the axis of the beam member by inserting the insertion portion into the insertion groove. . The second resin member is fixed to the first resin member above the first resin member,
A first inclined surface is formed on the upper surface of the first resin member and is inclined downward toward the outer side in the axial direction of the beam member,
A second inclined surface that abuts on the first inclined surface is formed on the lower surface of the second resin member,
When the first resin member and the second resin member are positioned in the vertical direction, the first inclined surface and the second inclined surface are brought into sliding contact with each other so that the axis of the beam member is adjusted. 2. The frame for knockdown furniture according to claim 1, which defines relative positions of said first resin member and said second resin member in the center direction. The second resin member is formed with a contact portion facing downward,
The sheet metal member has a contact surface that faces upward and contacts the contact portion,
When the first resin member and the second resin member are assembled, the abutment between the abutting portion and the abutted surface causes the second resin member to be in contact with the sheet metal member. 3. The frame of knockdown furniture according to claim 1, which regulates relative displacement. The connecting hole is provided with two elongated holes that open along the vertical direction in close proximity and in parallel,
The sheet metal member has two hook portions formed by bending one sheet metal,
4. The knockdown furniture according to any one of claims 1 to 3, wherein the sheet metal member is assembled to the frame member by engaging the two hook portions with the two long holes. frame. 5. The frame of knockdown furniture according to claim 4, wherein said hook portion extends upward in said sheet metal member. The frame for knockdown furniture according to any one of claims 1 to 5, wherein the lower surface of the assembly member and the lower surface of the beam member are positioned on the same plane.

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