JP2009293662A - Furniture structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a unique furniture structure sufficiently making the most use of the strength of a material even if it is a low density material such as a Japanese cedar. <P>SOLUTION: This furniture structure C has a frame element F, a utility element U and a connecting element J. In the frame element F, a raw material capable of revealing required strength is constituted as a stud member of a non-independent shape. When combining the frame element F and the utility element U, the utility element U is pinched in a predetermined position of a pair of frame elements F, and the pair of frame elements F are loaded in the drawing direction by the connecting element J in a connection effective position in this state, and the utility element U pinched here is crossed in the plane direction, and a combination of the pair of non-independent shape frame elements F is combined so as to reveal a rigidity state in both tilting direction and twisting direction. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to furniture such as chairs, desks, shelves and the like, and in particular, when a warm feeling is obtained, but, for example, cedar board material that tends to be insufficient in strength is used as a part of the constituent members The present invention relates to a novel furniture structure suitable for the above.

Cedar board material has a relatively low material density, and when used in furniture, it has a soft surface feel and feels warm, but it has been actively developed as furniture because it is difficult to obtain sufficient strength and is easily damaged. Has not been attempted.
In other words, the low material density of cedar wood means that it is not possible to obtain sufficient bonding strength with wood screws screwed in here or nails to be driven in. Cedar wood and wood screws / nails are compatible with each other. There have been few attempts to use it as a furniture structure as a bad thing. Of course, special wood screws for such low-density wood are also available with high screw threads and long screw dimensions, but in furniture such as chairs where thin plate materials are often used. Such special specifications cannot be applied.
That is, the incompatibility between cedar wood and wood screws or the like appears more remarkably in the case of a thin plate used for furniture or the like, and as a result, it is difficult to process cedar wood into furniture or the like.

However, even such low-density cedar board materials are insufficient in strength for compression in the tree diameter direction, etc., but have a considerable strength against compression or buckling in the tree length direction. It is known to exert.
For this reason, when trying to use cedar board material, for example, for a chair, etc., it can be considered that, for example, a metal material is applied to the frame member as the strength member, and a cedar board, etc. is applied to the seat board. Such a structure itself should be said to be a well-known technique. However, in such a combined structure, almost all frame members can be self-supported or plate members such as boards. It has become a self-supporting structure due to the mutual locking structure between them, and a more unique structure applicable to cedar and the like has not been proposed.
JP 2000-152832 A JP 2007-37725 A

  The present invention has been made in consideration of such a background, and even a low-density material such as cedar can be constructed while fully utilizing its strength, and wood screws and the like that cedar materials dislike. This is an attempt to develop a unique furniture structure that eliminates its use.

The furniture structure according to claim 1 includes a frame element, a utility element, and a connecting element, and the frame element is configured as a pedestal member having a non-self-supporting shape made of a material capable of expressing necessary strength. A pair of elements is used as a self-supporting pedestal, the utility element is a combination of plate-like materials whose plane directions intersect, and the connecting element is a rod-shaped or The wire-like member weights the pair of frame elements in the pulling direction at one or a plurality of connection effect positions. When the frame elements and the utility elements are combined, the utility is placed at a predetermined position of the pair of frame elements. In this state, the pair of frame elements are attracted by the connecting element at the connecting effect position. The combination of a pair of non-self-supporting frame elements is combined so as to develop a rigid state in both the tilting direction and the twisting direction by applying weight to the direction and the utility elements sandwiched between them intersecting the surface direction. Is a feature.

  The furniture structure according to claim 2 is, in addition to the requirement according to claim 1, a frame of a chair frame including a leg portion, a seat plate support portion, and a backrest support portion for constituting a chair, The utility element is a seat plate or a backrest plate for constituting a chair.

  The furniture structure according to claim 3 is a desk frame including a leg part, a top board support part, and a connection hole forming part for constituting a desk for the frame element in addition to the requirement of claim 1. The utility element is a top plate or a rib plate for constituting a desk.

  The furniture structure according to claim 4 is a shelf frame for constituting a shelf for the frame element in addition to the requirement of claim 1, and the utility element is a shelf for constituting a shelf. It is characterized by being a plate and a back plate.

  In addition to the requirements of claim 1, 2, 3 or 4, the furniture structure according to claim 5 is a tube material, an angle material, a channel material, a bar material, or a combination thereof. It is characterized by being.

  The furniture structure according to claim 6 is characterized in that, in addition to the requirements of claim 1, 2, 3, 4 or 5, the utility element is a wood board.

  The furniture structure according to claim 7 is characterized in that, in addition to the requirement according to claim 6, the utility element is a solid cedar board material and the tree length direction is applied to the frame element. It is.

  First, according to the first aspect of the present invention, the frame element is configured as a pair of members unitized with a material having sufficient rigidity, and on the other hand, utility elements to which plate materials are applied are combined, and in combination, the utility is directly It is configured so that a connecting element for fixing does not act on the element, and a furniture structure having sufficient rigidity can be obtained while utilizing the strength characteristics of the utility element.

  Further, according to the invention described in claim 2, the present invention is applied to a chair that is often touched directly by a user, and has a so-called warm feeling while exhibiting sufficient strength as a chair. is there.

  According to the invention described in claim 3, the advantages of the invention can be realized even in a desk.

  According to the invention described in claim 4, the advantages of the invention can be realized even in the shelf.

  Further, according to the invention described in claim 5, it is possible to apply an appropriate frame element material according to the design concept or the like.

  According to the invention of claim 6, at least a wood board is used as the utility element, and a product with a soft texture can be obtained.

  According to the invention of claim 7, since the utility element is a solid cedar board material, and even if it is a single board or laminated wood, the tree length direction is applied to the frame element, The furniture structure can be obtained by taking advantage of the strength of the cedar board.

  BEST MODE FOR CARRYING OUT THE INVENTION The best mode for carrying out the present invention includes an embodiment described below, and includes various improved embodiments based on this technical idea.

Hereinafter, the present invention will be specifically described based on illustrated embodiments.
Needless to say, the furniture structure C according to the present invention can be applied to various chairs, desks 2, shelves 3 as well as various stools and furniture such as step stools.
The furniture structure C is roughly composed of a combination of a frame element F, a utility element U, and a connecting element J. The furniture structure C will be sequentially described from the example of the chair 1 to which these are actually applied.

First, in the embodiment of the chair 1 shown in FIGS. 1 to 4, the chair frame 11 that is the frame element F is formed by bending or branching a metal pipe that can obtain a predetermined strength, for example. That is, the chair frame 11 is connected, for example, by welding so that the pair of front and rear leg portions 12, a seat plate support portion 13 that connects the space between the front and rear portions approximately horizontally, and a seat plate support portion 13 that rises obliquely upward slightly from the rear. The back support 14 using the same metal round pipe is provided, and the chair frame 11 is combined in a pair of left and right to obtain the completed state of the chair 1.
The single chair frame 11 is substantially formed with one surface by the leg portion 12, the seat plate support portion 13, and the backrest support portion 14. That is, the single chair frame 11 does not have practical independence and is defined as non-independence.
In addition, about the chair frame 11, it is preferable to engage | insert the wooden cap 11C which covers the cut-off end of a round pipe-shaped raw material in the both ends of the leg part 12 and the backrest support part 14. FIG.

Next, the seat plate 15 constituting a part of the utility element U uses a plate-like material, and specifically uses a solid cedar plate material as an example. Of course, this cedar board may be a single veneer, or, for example, it is a laminated timber made by cutting thinned wood, etc., derived from a cedar production forest into a plate shape, and joining them in the tree length direction. There may be.
In the case of solid cedar, the use direction is provided with a contact recess 150 that matches the circular arc of the chair frame 11 as an example on the front end of the tree direction. That is, when the cedar board material is applied, the seat board 15 is combined so that the tree length direction is attached to the chair frame 11.
Similarly, the backrest plate 16 is made of substantially the same material as the seat plate 15 and is provided with a concave portion 160 on the end face in the tree length direction.
The seat plate 15 and the backrest plate 16 are arranged so as to intersect in the extension direction, although the directions of the surfaces thereof are not directly, that is, the seat plate 15 is arranged almost horizontally and the backrest plate 16. It is arranged so that the upper part is slightly inclined backward.

  A joint rod 17 is used as a connecting element J for integrating the chair frame 11 as the frame element F, the seat plate 15 as the utility element U, and the backrest plate 16. As an example, this is a so-called turnbuckle-like one, in which two rod portions 171 divided into left and right are fastened by a central union screw portion 172, and the chair frame 11 is loaded in the pulling direction. I do. For this purpose, the rod portion 171 includes a head portion 171a and is configured in a reverse screw state on the left and right sides. The head portion 171a has a hexagonal wrench receiving hole or a plus / minus screwdriver receiving portion for preventing rotation. It is preferable to provide a hole.

  A connection hole 18 for receiving such a joint rod 17 is formed at the connection effect position of the chair frame 11 as the frame element F. In this embodiment, when the pair of chair frames 11 are attracted, both the seat plate support portion 13 and the backrest support portion 14 of the chair frame 11 can exert a moment that maintains the seat plate 15 and the backrest plate 16 in a sandwiching direction. Specifically, the connection effect position is provided near the back support part 14 in the chair frame 11.

Further, in order to stably attach the seat plate 15 and the backrest plate 16, dowel holes 19 are formed only on the upper side of the backrest support portion 14 of the chair frame 11 and on the inner side of the front position of the seatplate support portion 13. Corresponding to this, the dowel 161 is projected from the backrest plate 16 and the dowel 151 is also projected from the seat plate 15.
It should be noted that the joint rod 17 may be configured in the vicinity of a bending point in front of the leg portion 12 and the seat plate support portion 13 of the chair frame 11 so that two joint rods 17 are disposed.

  The assembly state of the chair 1 will be further described. Although each of the chair frames 11 is not self-supporting, the seat plate 15 and the backrest plate 16 are interposed between the chair frames 11 in a state where they are raised up against each other. Fit it. At this time, the seat plate 15 and the backrest plate 16 are accurately applied to the chair frame 11 by the contact recess 150 and the contact recess 160. Preferably, the contact recesses 150 are somewhat eccentric so that the side in contact with the seated person, that is, the upper side in the case of the seat plate 15 and the front side in the case of the backrest plate 16 protrude from the chair frame 11 to the seated side. It is preferable to configure.

If the union screw part 172 is tightened by passing the joint rod 17 through the connecting hole 18 in such a state, this tightening action first tightens the seat plate 15 and also the backrest plate 16.
That is, if it is assumed that the seat plate 15 does not exist due to the tightening of the joint rod 17, for example, the backrest plate 16 exists upward, and the chair frame 11 has a moment in which the legs 12 are constricted. However, the presence of the seat plate 15 at this portion causes the moment to press the seat plate 15 from the both mouthpiece surfaces. As a result, the seat plate 15 and the backrest plate 16 are directly connected by the tightening member. Even if the holding action is not received, the chair frame 11 is tightened and fixed.

As a result, as shown in FIG. 4A, when the chair 1 is viewed from the front, the left and right inclination directions are such that the backrest plate 16 is in close contact with the backrest support portion 14 of the chair frame 11 over a certain length. This is the situation and the movement is blocked. With this action, as shown in FIG. 4 (b), the chair 1 moves in the twisting direction when viewed from above, so that the contact recesses 150 on the both ends of the seat plate 15 are in close contact with the seat plate support portion 13 of the chair frame 11. By doing so, deformation in the twisting direction is prevented.
Note that the forward / backward tilt corresponds to the leg 12 of the chair frame 11 itself.

<Example applied to desk>
Next, an embodiment applied to the desk 2 will be described.
The principle of the basic structure is the same as that of the chair 1. First, the desk frame 21 as the frame element F is configured by using a metal round pipe, and the leg portion 22, the top plate support portion 23, and the connection. A hole forming part 24 is provided.
The top plate 25, which is the utility element U, is a single plate-like plate material, and as an example, a two-row rib plate 26 is integrally formed in parallel with the central portion. As a result, the top plate 25 and the rib plate 26 cross the surface direction.
The joint rod 27 includes a rod portion 271 and a union screw portion 272, and the rod portion 271 has a head portion 271a at each end. The desk frame 21 has a connection hole 28 opened at the connection effect position of the connection hole forming portion 24.

  Similarly to the chair 1, the desk frame 21, which is a non-self-supporting frame element F, is sandwiched between the top plate 25, which is a utility element U, and the joint rod 27 is tightened. Let In this embodiment, the top plate 25 is brought into contact with the top plate support portion 23 of the desk frame 21 in the contact recess 250 and is in close contact with the entire range. The upper end is a part of the upper end, and only the contact recess 260 on the lower end side is in contact with a part of the connection hole forming part 24.

<Examples corresponding to shelves>
The structure of the shelf 3, which is still another application example of the furniture structure C, is also common to the chair 1 and the desk 2 described above, and the shelf frame 31 as the frame element F has a metal pipe formed in an inverted U shape as appropriate. The columnar support portions 32 formed substantially in parallel with each other are substantially formed. A large number of shelf plate support portions 33 are formed in the support portion 32 so that the set position of the shelf plate 35 can be selected as appropriate.
On the other hand, the shelf board 35 as the utility element U is provided with a dowel 351 that fits into the shelf board support portion 33 on the side end face. Similarly, the back plate 36 projects the dowel 361 and this is also fitted into the back plate support portion 34.

  And the joint rod 37 which is the connection element J selects the appropriate connection effect position of the shelf frame 31 of an up-down direction, and fastens each shelf frame 31 on either side at multiple places. That is, the connection hole 38 is appropriately opened with respect to the shelf frame 31, and the left and right non-independent shelf frames 31 are fastened together. In the case of the shelf 3, since the height is relatively high and the depth direction is narrow, it is preferable to provide a plurality of joint rods 37.

<Another embodiment for each component>
The present invention is based on the embodiment described above as one basic technical idea, but various modifications can be considered for the furniture structure C, the frame element F, the utility element U, and the connecting element J.
<Another Example of Frame Element F>
First, regarding the material, a metal round pipe is applied in the above-described embodiments, but other than that, a metal square pipe, an angle material, a channel material, and a combination thereof can be used. In particular, as shown in FIG. 7, when an angle material is applied, this material tends to have a so-called cheap feeling as a design evaluation because of its very general-purpose material. For the leg portion 12, a combination method such as welding a round pipe or the like can be employed.

Furthermore, as an embodiment of the chair frame 11 as the frame element F when the chair 1 is assumed, a leg material 12 is formed by bending a single material as shown in FIG. In addition, the lower end of the base plate may be horizontally formed as the floored portion 121, and the backrest support portion 14 may be separated from the upper end side.
In FIG. 8B, the chair frame 11 is vertically bent downward from above the backrest support portion 14 to form a rear leg portion 12.
In addition, what is shown in FIG. 8 (c) has already been described that the chair frame 11 constitutes almost one surface. Strictly speaking, the leg portion 12 has an outwardly expanding shape. You can also do it.

Further, in FIG. 8D, when a round bar-like member is bent, for example, when the back support 14 is folded back at the upper end, the cross-sectional view shown in FIG. Two metal rods are made to overlap each other. In this case, for example, two striking recesses 160 are formed on the wood face of the backrest plate 16.
Further, the frame element F is formed by appropriately bending the bowl-shaped material as described above, and other materials such as a pressed steel plate, a cast member, FRP, and a cut-out wood material are used as long as necessary strength is maintained. Is possible.

<Another embodiment of the utility element U>
Although it is a requirement that the utility element U is a plate-like member and has a plane direction crossed, each plate-like material is not made into a complete single plate, for example, FIG. ) As shown in FIG.
The embodiment shown in FIG. 9B can be applied to the seat plate 15, the backrest plate 16, the top plate 25, etc., but it is not necessary to make contact with the frame element F on the entire face of the mouthpiece surface, and make contact with only both ends thereof. It is good also as a various form. The utility element U may be a complete flat plate, or a curved plate or the like may be applied although illustration is omitted.

<Another Example of Connecting Element J>
As the connecting element J, a bolt-shaped rod (for example, indicated by reference numeral 171) as described above is used, and a turnbuckle type having a union screw portion (for example, indicated by reference numeral 172) at the center is used. A method in which a deep nut 72 is fitted to one end of the rod portion 71 as shown in FIG. 10 (a), and further, the connecting hole 18 is bracketed in the chair frame 11 as the frame element F as shown in FIG. 10 (b). Alternatively, the wire 77 may be applied to form the loop 77a, and the loop 77a may be bound by the splice 77b.
Further, tightening with a so-called quick release 78 to which an eccentric cam 78c as shown in FIG. 10C is applied is also possible.
Furthermore, what is shown in FIG. 10D is one using a toggle buckle 79. To adjust the overall length of the connecting element J in this embodiment, a sufficiently long male screw is formed at the end of the rod portion 79a, and a cap-like long nut 79b is fitted accordingly. It is done by putting it in.

It is the perspective view which showed the chair to which the furniture structure of this invention was applied, and an exploded perspective view. It is a side view same as the above. It is a front view same as the above. It is the front view which showed the load bearing state in the backrest part same as the above, and the top view which showed the load bearing state in a seat board. It is the disassembled perspective view and the partial expanded sectional view which showed the desk to which the furniture structure of this invention was applied. It is the disassembled perspective view which showed the shelf to which the furniture structure of this invention was applied. It is a partially expanded perspective view which shows the other Example regarding the frame element which comprises the furniture structure of this invention. The further another Example regarding the frame element which comprises the furniture structure of this invention is shown, Comprising: (a), (b), (d) is a side view, (c) is a perspective view. Furthermore, (e) is a sectional view taken along line ee in (d). It is a perspective view which shows the other Example regarding the utility element which comprises the furniture structure of this invention. It is a perspective view which shows the other Example regarding the connection element which comprises the furniture structure of this invention.

Explanation of symbols

C Furniture structure F Frame element U Utility element J Connecting element 1 Chair 11 Chair frame 11C Wooden cap 12 Leg part 121 Flooring part 13 Seat plate support part 14 Back support part 15 Seat plate 150 Per recessed part 151 Dowel 16 Backrest board 160 Contact concave portion 161 Dowel 17 Joint rod 171 Rod portion 171a Head portion 172 Union screw portion 18 Connection hole 19 Dowel hole 2 Desk 21 Desk frame 22 Leg portion 23 Top plate support portion 24 Connection hole forming portion 25 Top plate 250 Recess portion 26 Rib plate 260 Contacting concave portion 27 Joint rod 271 Rod portion 271a Head portion 272 Union screw portion 28 Connection hole 3 Shelf 31 Shelf frame 32 Support portion 321 Connection hole support portion 33 Shelf plate support portion 34 Back plate support portion 35 Shelf plate 351 Dowel 36 Back plate 361 da 37 Joint rod 371 Rod part 371a Head 372 Union 38 Connection hole 50 Steel plate 51 Joint plate 52 Meat plate 70 Joint 71 Rod part 72 Deep nut 73 Nut 77 Wire 77a Loop loop 77b Splice 78 Quick release 78c Cam surface 79 Toggle buckle 79a Rod Part 79b Long nut

Claims (7)

A frame element, a utility element, and a connecting element;
The frame element is configured as a non-self-supporting pedestal member made of a material capable of expressing the required strength, and the frame element is used as a pair of independent pedestals,
Further, the utility element is a combination of plate-like materials whose plane directions are crossed,
Furthermore, the connecting element is one in which a rod-like or wire-like member weights the pair of frame elements in one or more connecting effect positions in the attracting direction,
When the frame element and the utility element are combined, the utility element is sandwiched at a predetermined position of the pair of frame elements, and in this state, the pair of frame elements are weighted in the pulling direction by the connection element at the connection effect position. A furniture structure characterized in that a combination of a pair of non-self-supporting frame elements is combined to develop a rigid state in both the tilting direction and the twisting direction by sandwiching utility elements intersecting the plane direction .   The frame element is a chair frame having legs, a seat board support part, and a back support part for constituting a chair, and the utility element is a seat board and a back board for constituting a chair. The furniture structure according to claim 1.   The frame element is a desk frame having legs, a top board support part, and a connecting hole forming part for constituting a desk, and the utility element is a top board and a rib board for constituting the desk. The furniture structure according to claim 1.   The furniture structure according to claim 1, wherein the frame element is a shelf frame for constituting a shelf, and the utility element is a shelf board and a back plate for constituting the shelf.   The furniture structure according to claim 1, 2, 3, or 4, wherein the frame element is a tube material, an angle material, a channel material, a bar material, or a combination thereof.   The furniture structure according to claim 1, 2, 3, 4, or 5, wherein the utility element is a wood board.   The furniture structure according to claim 6, wherein the utility element is a solid cedar board material and a tree length direction is applied to the frame element.

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