JP4469351B2 - Furniture, furniture frame, furniture manufacturing method and furniture frame manufacturing method - Google Patents

Description

  The present invention relates to furniture, a furniture frame, a furniture manufacturing method, and a furniture frame manufacturing method.

  In general, a frame body with a curved shape is composed of a single plywood coated with adhesive, a plywood formed by compressing a wooden material laminated with plywood, etc. into a mold, and then curing the adhesive. Is done. For example, a chair frame body that constitutes a leg portion or a support portion of furniture is composed of a plurality of frames made of laminated plywood, and the frame is integrally formed when the adhesive between the laminated plywood and between the frames is heated and bonded at high frequency. The At this time, an open space can be formed at the joint between the frames having different curvatures. FIG. 10 shows a chair in which the frame body is integrally formed, and FIG. 11 shows an enlarged view of the joint portion of the frame. From FIG. 11, the laminated plywood constituting the seat-side through 24 is divided into two forks at the joint portion between the seat-side through 24 and the rear leg 23. That is, the upper half P is included in the upright portion 25 above the rear leg 23, and the lower half Q is included in the rear leg 23, and is a component of the rear leg 23 and the upright portion 25. A substantially triangular space is formed between the laminated plywood R.

  When such a space is formed at the joint, it is difficult to integrally form a stable strength frame. As a means for improving this, there is a method in which a piece frame is bonded to a space to integrally form a chair frame (Patent Document 1). FIG. 12 shows a piece 27 whose side surface has a substantially triangular shape. As shown in FIG. 10, the leg frame can be easily manufactured and the strength can be improved by providing a structure in which the space generated in the vicinity of the joint portion of the frame is filled with the piece block 27.

  However, if the frame body is fixed by high frequency bonding with the adhesive between the plywoods with the piece inserted, even if high frequency is applied from the surroundings when the piece is large, the high frequency does not reach the inside of the piece, There was a problem of insufficient adhesion to the frame body.

  Further, the conventional piece of Komaki has been used for the purpose of being bonded and fixed. That is, once it was bonded and fixed to the space formed at the joint of the frame, it could not be removed. Thus, the furniture was processed into the shape of the final product while the piece was bonded. If an attempt is made to produce a furniture frame body that makes use of the space, it is necessary to mold the piece without using it from the beginning, and there is a risk that the strength of the frame body will be insufficient in the space. It was.

  On the other hand, in order to rationally produce a curved plywood having excellent rigidity and strength, a molded plywood disclosed in Patent Document 2 has been proposed. In this plywood, a rigid and good-quality ultrathin metal plate is buried between single plates constituting the plywood, and when a high frequency current is passed through the plywood, the ultrathin metal plate serves as an electrode. FIG. 13 is a view showing a plywood 33 for molding, an electrode rod 31, and a linear cutting edge 32 attached to the tip thereof. In order to bring the thin metal plate 34 for electrode and the electrode rod 31 between the surface layer and the next layer of the plywood 33 for molding into contact, the cutting edge of the electrode rod penetrates the surface layer. FIG. 14 is a schematic diagram showing a method for molding plywood, and FIG. 15 is a completed view 36 of the molded plywood. A plywood is placed between the male mold frame 35a and the female mold frame 35b. When the separate electrode rod 31 is brought into direct vertical contact with the thin metal plate 34 buried in the plywood and a high-frequency current is passed, the molding process is promoted. A curved plywood with excellent rigidity and increased adhesion.

  However, in this method, since the thin metal plate 34 below the surface layer and the electrode rod 31 are brought into direct contact, a hole is made in the surface layer with the blade tip 32 attached to the tip of the electrode rod, and a blade edge trace is generated in the surface layer. . For this reason, there was a need to process this trace decoratively.

  Furthermore, a method has been proposed in which a plywood can be bent into a desired shape in a short time using a high-frequency dielectric heating device (Patent Document 3). FIG. 16 shows an enlarged cross-sectional view of a partially omitted plywood that enables this method. This plywood is provided with an adhesive layer 42 of a thermoplastic synthetic resin between a plurality of single plates 41 forming the plywood, and between the adhesive layers 42, the same kind of resin having a melting point lower than that of resin, aluminum fine powder, oxidation The intermediate layer sheet 43 mixed with a metal substance such as iron is bonded. If this plywood is heated by a high-frequency dielectric heating device, the metal contained in each intermediate sheet suddenly generates heat. Since the intermediate layer sheet 43 for causing the slip is first melted, it is possible to reach a formable state in a very short time. Since the single plate portion that does not require heating is heated relatively slowly, the thermal efficiency increases accordingly.

However, metal materials such as aluminum fine powder and iron oxide of this plywood have a problem of dispersibility. If the dispersion of the conductor powder is not uniform, local high-temperature spots are formed, and uniform adhesive force may not be obtained. There was sex. There is also a problem that it takes time and cost to manufacture the intermediate layer sheet.
JP-A-62-72308 Japanese Utility Model Publication No. 6-55736 JP 59-127756 A

  The present invention has been made to solve such conventional problems. A first object of the present invention is to improve adhesion between a piece of wood and a frame body, and a second object is to provide a frame body in which a space portion generated at a joint portion of the frame is left.

  In the present invention, in order to improve the adhesion of the piece of wood without leaving any scars, the surface of the piece of wood is covered with a metal foil, or the pieces are laminated to form a piece of wood through the metal foil, and the frame body is integrally formed, The main feature is that it can be removed.

Furthermore, the first furniture of the present invention is a furniture composed of a laminated plywood frame A, and the frame A is composed of a plurality of frames a1, a2, a3 and a piece structure 11a. An open space B is formed in the vicinity of the joint of the plurality of frames a1, a2, and a3, and the internal shape of the space B is substantially equal to the external shape of the piece structure 11a. The piece structure 11a is bonded to the space B and is configured integrally with the plurality of frames a1, a2, and a3 to form the frame body A. The piece tree structure 11a is configured by stacking small pieces 20 having substantially the same cross-sectional shape in the thickness direction of the piece piece structure , and between the pieces 20, the cross-sectional shape of the piece 20 is substantially equal or A smaller conductive metal foil 16a is interposed, and the piece structure 11a is formed by covering the metal foil 16a on at least a part in contact with the frame body A.

  Furthermore, the second furniture of the present invention is characterized in that the metal foil of the first invention is made of aluminum.

Furthermore, the third furniture frame body of the present invention is a furniture frame body A composed of laminated plywood, and the frame body A is composed of a plurality of frames a1, a2, a3 and a piece structure 11a. An open space B is formed in the vicinity of the joint of the plurality of frames a1, a2, and a3, and the internal shape of the space B is substantially equal to the external shape of the piece structure 11a. The piece structure 11a is bonded to the space B and is configured integrally with the plurality of frames a1, a2, and a3 to form the frame body A. The piece tree structure 11a is configured by stacking small pieces 20 having substantially the same cross-sectional shape in the thickness direction of the piece piece structure , and between the pieces 20, the cross-sectional shape of the piece 20 is substantially equal or A smaller conductive metal foil 16a is interposed, and the piece structure 11a is formed by covering the metal foil 16a on at least a part in contact with the frame body A.

  Furthermore, the fourth furniture frame of the present invention is characterized in that the metal foil of the third invention is made of aluminum.

Furthermore, the fifth furniture manufacturing method of the present invention is a furniture manufacturing method comprising a laminated plywood frame body A, the frame body A comprising a plurality of frames a1, a2, a3 and a piece structure 11a. Become. An open space B is formed in the vicinity of the joint of the plurality of frames a1, a2, and a3, and the internal shape of the space B is substantially equal to the external shape of the piece structure 11a. The piece tree structure 11a is bonded to the space B and is integrally formed with a plurality of frames a1, a2, and a3 to form a frame body A. The piece piece structure 11a has a substantially sectional shape. It is a stack of equal pieces 20. In the fifth furniture manufacturing method of the present invention, the small pieces 20 are laminated in the thickness direction of the piece structure through the conductive metal foil 16a that is substantially equal to or smaller than the cross-sectional shape of the small pieces 20 , and the metal foil a layer of 16a with multiple free Maseru, adhere the steps that form a Komaki structures 11a covers at least a portion in the metal foil 16a flush contact with the frame member a, the Komaki structure 11a in the space B, the high-frequency dielectric And a step of integrally configuring the frame body A of the furniture by heating.

  Furthermore, the sixth furniture manufacturing method of the present invention is a furniture manufacturing method including a laminated plywood frame body A, and the frame body A includes a plurality of frames a1, a2, and a3. In the vicinity of the joint of the plurality of frames a1, a2, a3, an open space B is formed, and the piece structure 11b having an outer shape substantially equal to the internal shape of the space B is fitted into the space, and a plurality of frames The frame body A is formed by being configured integrally with the frames a1, a2, and a3. The sixth furniture manufacturing method of the present invention further includes a step of coating the surface 12 of the piece main body 11 constituting the piece structure 11b with the conductive metal foil 16, and the surface of the piece covered with the metal foil 16 further. A step of covering the release agent 17 to form the piece structure 11b, a step of fitting the piece structure 11b in the space B and applying high-frequency dielectric heating to integrally form the furniture frame; And the step of removing the piece structure 11b after being integrally formed.

  Furthermore, the seventh furniture manufacturing method of the present invention is characterized in that the metal foil according to the fifth or sixth invention is made of aluminum.

Furthermore, an eighth method for manufacturing a furniture frame body according to the present invention is a method for manufacturing a furniture frame body A composed of laminated plywood, the frame body A having a plurality of frames a1, a2, a3 and a piece structure. An open space B is formed in the vicinity of the junction of the plurality of frames a1, a2, and a3. The internal shape of the space B is substantially equal to the outer shape of the piece structure 11a, and the piece structure 11a is bonded to the space B and is configured integrally with the plurality of frames a1, a2, and a3, thereby forming the frame body A. The Komagi structure 11a is a laminated body of small pieces 20 having substantially the same cross-sectional shape. In the manufacturing method of the frame body A of the eighth furniture of the present invention, the small pieces 20 are laminated in the thickness direction of the piece structure through the conductive metal foil 16a substantially equal to or smaller than the cross-sectional shape of the small pieces 20. It is, bonding a layer of metal foil 16a with a plurality including Maseru, the steps that form a Komaki structures 11a covers at least a portion in the metal foil 16a flush contact with the frame member a, the Komaki structure 11a in the space B And performing a high frequency dielectric heating to integrally form the furniture frame A.

  The ninth furniture frame manufacturing method of the present invention is a furniture manufacturing method comprising a laminated plywood frame A, and the frame A comprises a plurality of frames a1, a2 and a3. In the vicinity of the joint of the plurality of frames a1, a2, a3, an open space B is formed, and the piece structure 11b having an outer shape substantially equal to the internal shape of the space B is fitted into the space, and a plurality of frames The frame body A is formed by being configured integrally with the frames a1, a2, and a3. The ninth furniture manufacturing method of the present invention further includes a step of covering the surface 12 of the piece main body 11 constituting the piece structure 11b with the conductive metal foil 16, and the surface of the piece covered with the metal foil 16 further. A step of covering the release agent 17 to form the piece structure 11b, a step of fitting the piece structure 11b in the space B and applying high-frequency dielectric heating to integrally form the furniture frame; And the step of removing the piece structure 11b after being integrally formed.

  Furthermore, the tenth furniture frame manufacturing method of the present invention is characterized in that the metal foil according to the eighth or ninth invention is made of aluminum.

According to 1st invention, 3rd invention, 5th invention, and 8th invention, since a small piece is laminated | stacked on both sides of electroconductive metal foil, a metal foil layer is contained inside a Komagi structure. The plurality of metal foil layers are arranged at substantially equal intervals. A high frequency dielectric heating electrode is arranged around the frame body A, and a high frequency is applied to the frame body. As a result, the conductive metal foil covered with the piece serves as an electrode, and the voltage change in the frame body is reduced. Therefore, electricity is uniformly supplied to the inside of the piece, and the adhesion between the piece and the frame and the adhesion effect inside the frame are enhanced. As a result, a furniture frame having sufficient strength can be obtained, and the strength, stability and reliability of the furniture itself can be improved.
Further, the metal foil covered with the Komagi structure is not covered on the substantially parallel front and back surfaces. Therefore, the piece structure is bonded to a space generated in the vicinity of the joining of the frames, and the thin metal is not exposed in the integrally configured frame body. The step of processing this visible metal foil can be omitted, and the cost can be reduced.

  According to 2nd invention, 4th invention, 7th invention, and 10th invention, the metal foil made from aluminum is used. Aluminum is highly conductive, malleable and ductile and is easy to process. Moreover, since it is easy to obtain, the production cost can be kept low.

  According to the sixth and ninth inventions, since the conductive metal foil is first coated on the surface of the piece, the adhesion between the piece and the frame and the adhesion effect inside the frame are enhanced as described above. In addition, the release agent that is more uniformly coated on the surface coated with the metal foil reduces the frictional force between the frame body and the piece structure. That is, the Komagi structure once fitted can be removed. The removed piece structure can be reused and is economical.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. However, the embodiment described below is illustrative of furniture, a furniture frame body, a furniture manufacturing method, and a furniture frame manufacturing method for embodying the technical idea of the present invention. Does not specify furniture, furniture frame, furniture manufacturing method and furniture frame manufacturing method as follows. Further, in the present specification, for easy understanding of the scope of claims, numbers corresponding to the members shown in the embodiments are indicated in the scope of claims and “Means for Solving the Problems”. It is added to the member. However, the members shown in the claims are not limited to the members in the embodiments. In particular, the dimensions, materials, shapes, relative arrangements, and the like of the component parts described in the embodiments are not intended to limit the scope of the present invention unless otherwise specified, but are merely described. It's just an example. Note that the size, positional relationship, and the like of the members shown in each drawing may be exaggerated for clarity of explanation. Furthermore, in the following description, the same name and symbol indicate the same or the same members, and detailed description thereof will be omitted as appropriate. Furthermore, each element constituting the present invention may be configured such that a plurality of elements are constituted by the same member and the plurality of elements are shared by one member, and conversely, the function of one member is constituted by a plurality of members. It can also be realized by sharing.

(Structure of chair frame)
FIG. 1 shows a frame body A of a chair as furniture according to the first embodiment of the present invention. A frame body A in FIG. 1 includes a first frame a1, a second frame a2, and a third frame a3 that are laminated plywood bent to a desired curvature. The frame body A includes a front leg C1, a rear leg C2, and an upright part C3. The frame a2 forming the front leg part C1 and the rear leg part C2 and the vicinity of the apex of the curve of the part a1 can be used as the armrest part C4.

  Further, the front leg C1 includes a part of the first frame a1 and a part of the second frame a2. The rear leg C2 includes a part of the second frame a2 and a part of the third frame a3. The upright portion C3 includes a part of the first frame a1 and a part of the third frame a3. Further, the frames a1 and a2 extending from the front leg portion C1 branch into two sides x and y toward the rear leg portion C2 and the upright portion C3 in the vicinity of the joint portion of the three frames. Since one side z of the frame connecting the rear leg C2 and the upright part C3 is in contact with the branched two sides x and y, a space B having a substantially triangular cross section is formed at the joint. The frame body A is composed of three frames a1, a2, and a3 and a piece structure that is bonded to a space B generated in the vicinity of the joint of the three frames. A method for molding the frame body A will be described below.

(Method of forming Komagi structure)
First, the Komagi structure will be described. A plurality of small pieces 20 shown in FIG. 2 are prepared, and metal pieces are sandwiched therebetween to stack the small pieces 20 to obtain a piece structure 11a shown in FIG. FIGS. 3B and 3C show a Komagi body and a Komagi structure according to Example 2 described later.
The small piece 20 in FIG. 2 is based on a single piece obtained from a woody base material such as beech, lawan, sen, china, or hippo. In Example 1, beech is used. In addition, laminated plywood, particle board, medium density wood fiber board, high density wood fiber board, calcium silicate laminated on the corresponding surfaces of a plurality of veneers obtained from a wood base material via an adhesive It is also possible to use a wood fiber board such as a board or the like, an accumulation material or the like as a base material for small pieces. The shapes of the first and second surfaces 13 and 14 of the small pieces that are substantially parallel to each other are substantially the same as the external shape of the space B generated at the joint of the chair frame.

(Metal foil covering the Komagi structure)
The metal foil 16a sandwiched between the plurality of small pieces is not particularly limited as long as it is a metal foil, but a metal foil having excellent conductivity, malleability, and ductility and easy to process is suitable. In Example 1, an aluminum foil having a thickness of 0.1 mm is adhered to the surface of the small piece 20. Although it is preferable that the inside of the Komagi structure 11a includes a plurality of aluminum foil layers, it may be a single layer. Further, the aluminum foil to be coated may be a metal foil sheet composed of one layer, but a metal foil sheet composed of multiple layers may be used. A plurality of metal foil sheets in a single layer may be coated. In the piece structure 11a of the first embodiment, a plurality of aluminum foil layers are arranged at approximately equal intervals. Further, in Example 1, an instantaneous adhesive which is a cyanoacrylate adhesive is used as an adhesive for attaching an aluminum foil to the surface of the small piece 20. However, it may be the same as the thermosetting resin adhesive used for laminating the frames described later. Moreover, it will not be specifically limited if it is the adhesive material which satisfy | fills the use which adhere | attaches an aluminum foil and a piece structure.

  The aluminum foil is assumed to be approximately equal to or smaller than the shape of the first, second and third surfaces 13 and 14 of the small piece 20. An adhesive is applied to the first surface 13 of the first small piece and covered with an aluminum foil. Further, an adhesive is applied to the surface of the aluminum foil, and the second small piece is bonded separately. Of the substantially parallel front and back surfaces of the stacked small pieces, a surface that is not covered with anything is covered with a metal foil via an adhesive. An adhesive is applied to the metal foil, and the third piece is bonded. This is repeated until a desired thickness is obtained to obtain a piece structure 11a including a plurality of metal foil layers.

  In the piece structure 11a produced in the above-described manner, it is preferable that the aluminum foil is not exposed on the substantially parallel first and second surfaces 13a and 14a. When the aluminum foil is exposed on the first and second surfaces 13a, 14a of the piece structure 11a and the aluminum foil is exposed even after being configured integrally with the frame, the visible aluminum foil part is appropriately processed. It is also possible to design a visually recognized aluminum foil.

(Komagi structure size)
The Komagi structure has substantially the same cross-sectional shape and volume as the space B of the frame. The length between the substantially parallel first and second surfaces of the piece body and piece structure, that is, the piece thickness t is substantially equal to the depth of the recess in the space B. Therefore, when the piece 20 is laminated to form the piece structure 11a, the number of pieces 20 is adjusted so that the thickness of the finished piece structure 11a is substantially equal to the depth of the recess in the space B of the frame. . Or the piece 20 is laminated | stacked so that it may become larger than the desired thickness t, and a piece wooden pillar is formed. Then, you may cut so that it may become desired thickness.

(Type of wood base material of the frame)
Next, the frame will be described. Each frame constituting the chair frame body is made of a wood-based laminated plywood. The laminated plywood is formed by applying and laminating adhesive materials to corresponding surfaces of a plurality of single plates obtained from a woody base material such as beech, lawan, sen, china, and hippo.

(Adhesive)
As the adhesive used for forming the laminated plywood, a thermosetting adhesive is suitable, and examples thereof include melamine resin, epoxy resin, unsaturated polyester resin, polyurethane resin, phenol resin, polyimide resin, alkyd resin, and the like. . Thermosetting adhesives are stored in a liquid or semi-cured state, and when heated during use, the fluidity of the adhesive is increased, and the anchor is made of an adhesive that has hardened by entering into the fine irregularities, pores, etc. on the surface of the adherend. Bonds very firmly due to the effect. In view of the electrical properties, heat resistance, impact resistance, and adhesive strength of the adhesive, Example 1 uses a melamine resin adhesive.

(Method of gluing the Komagi structure and constructing the frame integrally)
FIG. 4 shows a plurality of chair frames D1, D2 and D3 and first to third frames a1, a2 and a3 which are processed into the shape of each mold.

  Before processing, the frame that is substantially linear is processed according to the shape of the mold. At this time, if a solid plate is bent to form a frame with a change in curvature, the outer layer cracks or breaks, making it difficult to bend into a desired shape. Use a board.

  A plurality of substantially straight single plates corresponding to the length of each frame are prepared. An adhesive is applied to the corresponding surfaces of a plurality of single plates, and the single plates are laminated. A laminated plywood in which the adhesive is uncured or semi-cured is placed in a predetermined position between the molds D1, D2, and D3 of each frame. Each mold is moved to a desired position and heated and pressurized so that the laminated plywood follows the shape of the frame mold. On the way, Komagi is appropriately inserted into the space B to integrally mold the frame body.

  Alternatively, one single plate is molded into a desired shape via a frame mold, and further, a separate single plate is similarly molded into a desired shape via a frame mold. Repeat this. Adhesives may be applied to the opposing surfaces of individually bent single plates, and these may be laminated. FIG. 5 shows a frame body A in which a plurality of single plates whose curvature changes according to the shape of a frame form each frame, and the frames are integrally formed.

(High frequency dielectric heating)
High frequency dielectric heating is performed to increase the adhesion of the frame body A in which a plurality of frames are integrally formed. The high frequency dielectric heating is a method in which a dielectric is heated by electric potential movement at an atomic or molecular level by an electric field effect of high frequency energy. Some dielectrics have positive and negative polarities called molecules called dipoles. When a dielectric is sandwiched between two electrode plates and a high frequency voltage is applied, the dipoles of each molecule become high frequency. Attempts to line up in the direction of the lines of electric force according to the direction of the voltage, resulting in rotational movement. Therefore, it generates heat rapidly due to frictional heat with neighboring molecules. This heat cures the adhesive in the frame. The amount of heat generated at this time varies depending on the type, composition, blending ratio, amount of use, and the like of the adhesive, and an appropriate amount of current is selected depending on the use situation.

  FIG. 5 shows a frame body A which is integrally formed by the frame body mold D but whose adhesive is in a liquid or semi-cured state. The frame type D is provided with a high-frequency dielectric heating electrode 6 so as to be arranged around the frame body A. When a high frequency is applied to the frame body A via the high-frequency dielectric heating electrode 6, The adhesive between the frames and the adhesive inside the frame are heated, and the adhesive effect is enhanced. In other words, the chair frame has sufficient strength, and the strength, stability, and reliability of the chair itself are improved. The frame body A configured integrally in the above manner is removed from the frame mold D. The front end of the laminated plywood having a variation in length is appropriately processed.

(Seat, backrest, etc.)
Thus, the frame body A of Example 1 comprised integrally is further processed. FIG. 7 shows a perspective view of the chair as the final form. A pair of frame bodies A and A ′ are prepared, the front legs C 1 and C 1 ′ are connected through the front through 1, the rear legs C 2 and C 2 ′ are connected through the back through 2, and the upright parts C 3 and C 3 ′ are connected through the backrest 3. Has been. Further, the front leg C1 and the rear leg C2, and the front leg C1 ′ and the rear leg C2 ′ are reinforced by the side holes 4 respectively. Furthermore, a chair is formed by providing the seat plate 5. Also, comfort is increased by applying a highly cushioning sheet material to the seat or backrest. The frame body can be decorated to enhance the design. Functions such as attaching belts to both front legs to prevent infants from falling from the chair, and attaching seats made of canvas etc. with pockets that can hold small items such as cutlery and newspapers to the backrest, etc. Can also be added.

(Komagi structure)
FIG. 3 (c) shows the piece structure 11b according to the second embodiment. The Komagi structure 11b is obtained by processing the Komagaki main body 11 shown in FIG. The piece main body 11 may be made of a solid single plate, or may be formed by applying an adhesive to the opposing surfaces of the plurality of small pieces 20 and bonding the small pieces 20 together.
A metal foil 16 is coated on the surface 12 of the Komagi main body 11 via an adhesive, and a release agent 17 is uniformly coated on the surface to form a Komagi structure 11b. Examples of the release agent include coatings with fluorine resins such as Teflon (registered trademark), silicon resins such as silicone resins, film types such as tetrafluoroethylene resin (PTFE) and polyvinyl alcohol (PVA), graphite, Known lubricants such as molybdenum sulfide, wax, wax, and mold release agents can be used as appropriate. In Example 2, a tape coated with a fluororesin is attached to the surface of the piece structure 11b as a release agent. Thereby, the work efficiency which coat | covers a peeling agent is accelerated | stimulated. The Komagi structure 11b has substantially the same cross-sectional shape and volume as the space B generated at the joint of the frame. The side surface 18 of the Komagi main body 11 that is in contact with each frame surface constituting the space portion B has substantially the same shape surface as the curved surface or plane of the frame constituting the space portion B. Moreover, the kind of metal of an adhesive material and metal foil can be the same as that of Example 1.
Further, when Komagi is fitted into the space of the frame body, the Komagi main body 11 covers the side surface 18 facing the frame of the chair with the metal foil 16, and the surface not facing the frame (substantially triangular in FIG. 3B). The top and bottom surfaces having parallel shapes may not be coated with a metal foil, and the coated metal foil 16 may be coated with a release agent 17 as the piece structure 11b. That is, in the Komagi structure 11b, the metal foil 16 and the release agent 17 are covered only on the portion in contact with the frame body, thereby reducing the cost. At this time, the release agent 17 covers the entire metal foil 16 to reduce friction between the piece structure 11b and the frame body.

(Chair and chair frame manufacturing method)
As in the first embodiment, a plurality of frames constituting the frame of the chair and the piece structure 11b of the second embodiment are integrally configured by a frame mold, and further, high frequency dielectric heating is performed to solidify the adhesive layer. . At this time, since the piece structure 11b of Example 2 includes the layer of the conductive aluminum foil 16, when a high frequency is applied, the inside of the frame body far from the high frequency dielectric heating electrode, that is, in the vicinity of the space portion. The adhesion of the frame body is enhanced, and the adhesion effect of the frame body is enhanced.

  In the above-described manner, after the piece structure 11b is fitted into the space generated at the joint portion of the frame and the frame body is integrally formed, the piece piece structure 11b is beaten with a mallet or the like, and the piece structure 11b is removed. To do. The fluororesin affixed to the surface of the Komagi structure 11b reduces the frictional force between the frame body and the Komagi structure 11b. That is, the fluorine film serves to assist the removal work of the Komagi structure. Therefore, a part of the Komagi structure cannot be removed and a part of the frame is not lost. Further, the removed piece structure can be reused. Thus, the fluorine film reduces the frictional force between the frame body and the piece structure 11b, and helps to remove the piece piece structure 11b.

  FIG. 6 shows the frame body A2 in a state in which the piece structure 11b is removed after the piece piece structure 11b is once fitted. The appearance is similar to a frame body in which only the frame is integrally formed without using the Komagi structure. However, the frame body A2 of Example 2 has a high bonding effect between single plates and between frames. This is due to the electrode action that the metal foil in the Komagi structure plays during the high-frequency dielectric heating described above. After the frame body is formed, the process of processing the chair into the final shape can be the same as in the first embodiment, and thus detailed description thereof is omitted.

  Further, according to the method of the second embodiment, the space B generated at the joint portion of the frame can have a more complicated internal shape. Since the conventional Komagi structure cannot be removed once bonded, it is difficult to form a frame body having a space. Also, if the frame body is formed without using the Komagi structure, the veneer in the vicinity of the frame mold can be faithful to the curvature of the frame mold, but as the distance from the mold, the veneer shape changes to the immediately preceding single veneer. It tends to follow the shape of the plate. For this reason, the shape of the space portion far from the frame mold is slightly different depending on the thickness of the adhesive layer and the single plate, and it is difficult to mass-produce frame bodies having a uniform space shape. On the other hand, if it is the structure of Example 2, the frame body of a chair provided with such a space, and manufacture of a chair will be easy by once fitting the Komagi structure of a desired shape and removing after that. realizable. In addition, reproducibility is established even in a space provided with a plurality of curves having different curvatures of each frame forming the space portion B, and mass production with high quality is possible.

  Furthermore, since the removed piece structure can be reused, the production cost can be reduced. In addition, the piece body 11 constituting the piece structure 11b of the second embodiment is not woody, and may be, for example, a metal piece piece excellent in resistance coated with a release agent. If a piece of wood that is different from a wooden material, such as a metal piece, is incorporated into the furniture, it becomes a different design. However, since the piece structure 11b is removed after fitting, it is not incorporated into the final form of the furniture and is not related to the design. . The Komagi structure 11b serves as an electrode for high-frequency dielectric heating, and is an adhesive for the frame body inside the frame body, that is, in the vicinity of the space, far from the high-frequency dielectric heating electrode installed in the frame body mold. There is no particular limitation as long as it can be removed and then removed. For example, a metal piece can be formed into a desired shape by using die casting such as aluminum or a cut metal. Such metal piece can be used as an electrode as it is, saves the trouble of covering the metal foil, etc., and does not break the metal foil when fitting the piece into the space, and can be used stably with high quality. It is also excellent in durability. Needless to say, a fluorine coating or the like is applied to the surface of the metal piece to reduce friction and facilitate insertion and removal.

  The chairs according to the first and second embodiments described above are examples of furniture, and the present invention can be applied to furniture such as tables, cabinets, and chests. As an example, FIG. 8 shows a perspective view of the furniture according to the third embodiment in which a frame having a space K opened at the leg portion of the cabinet 100 is applied. In this example, a T-shaped opening is formed at a joint portion between the structural portions constituting the leg portion. In this manner, not only the chair but also the leg portions of other furniture can be appropriately opened in the joint portion to express design fun.

  Furthermore, as Example 4, an example in which a space is opened in the frame of the table 200 is shown in FIG. In this table, a space K having a substantially triangular shape is formed on the table support surface of a wooden frame that supports the glass table 210, and the opening can be visually recognized through the glass. As described above, various designs can be expressed by forming a space in a portion visible not only from the leg portion but also from the outside. The shape of the opening is not limited to a triangle, and can be formed in various patterns such as a rectangular shape, a circular shape, a semicircular shape, an elliptical shape, a fan shape, a crescent shape, a Y shape, a T shape, and an X shape. Furthermore, besides the furniture, the present invention can be applied to structures made of laminated plywood, such as doors, ornaments, and nameplates. In this sense, the furniture in the present specification is used to include a product made of wooden laminated plywood.

  The furniture, furniture frame body, furniture manufacturing method, and frame body manufacturing method of the present invention can be used when a part or the whole of a furniture, such as a desk or a cupboard formed from a thick laminated plywood, is integrally formed. It can be suitably applied. Further, the present invention can be suitably applied to wooden products having openings such as decorations, nameplates, openwork between columns, and lattices.

It is a top view which shows the frame body of the chair which concerns on Example 1 of this invention. It is a perspective view of the small piece which concerns on Example 1 of this invention. 3A is a perspective view of the piece structure according to the first embodiment, FIG. 3B is a perspective view of the piece body according to the second embodiment, and FIG. 3C is a view of the piece structure according to the second embodiment. It is a perspective view. It is an exploded view which shows the type | mold and frame of a frame body. It is a top view of a type of a frame body and a frame body. It is a top view which shows the other example of the frame body of a chair. It is a perspective view which shows a chair. It is a perspective view of the cabinet which concerns on Example 3 of this invention. It is a perspective view of the table which concerns on Example 4 of this invention. It is a perspective view which shows the conventional chair. It is a principal part enlarged view of FIG. It is a perspective view of the conventional Komagi. It is explanatory drawing which concerns on the manufacturing method of the conventional shaping | molding plywood. It is explanatory drawing which concerns on the manufacturing method of the conventional shaping | molding plywood. It is a completed figure of the conventional molded plywood. It is a partial enlarged view of the conventional plywood.

DESCRIPTION OF SYMBOLS 1 ... Front penetration 2 ... Back penetration 3 ... Backrest 4 ... Side penetration 5 ... Seat board 6 ... Electrode for high frequency heating 11 ... Komagi main body 11a, 11b ... Komagi structure 12 ... Surface 13, 13a ... 1st surface 14, 14a ... 2nd surface 16, 16a ... Metal foil 17 ... Release agent 18 ... Side surface 20 ... Small piece 21 ... Leg frame 22 ... Front leg 23 ... Rear leg 24 ... Seat side penetration 25 ... Standing upper part 26 ... Armrest 27 ... Komaki 31 ... Electrode rod 32 ... Linear cutting edge of electrode rod 33 ... Plywood for molding 34 ... Thin metal plate for electrode 35a ... Male mold for molding 35b ... Female mold for molding 36 ... Complete view of molded plywood 41 ... Single plate 42 ... Adhesive layer 43 ... Intermediate layer sheet 100 ... Cabinet 200 ... Table 210 ... Table base A, A ', A2 ... Frame body a1 ... First frame a2 ... Second frame a3 ... Third frame B ... Space C1 , C1 '... front legs C2, C2 '... rear leg C3, C3' ... upright part C4 ... elbow rest D ... frame body type D1, D2, D3 ... each frame type K ... space P ... upper part of seat side Q ... seat side The lower part of the piercing R ... the component of the upper part t ... the thickness of the piece, x, y, z ... one side of the frame

Claims (10)

Furniture composed of a laminated plywood frame (A),
The frame body (A) is composed of a plurality of frames (a1, a2, a3) and a piece structure (11a),
In the vicinity of the junction of the plurality of frames (a1, a2, a3), an open space (B) is formed,
The internal shape of the space (B) is substantially equal to the outer shape of the piece structure (11a),
The piece structure (11a) is bonded to the space (B), and is configured integrally with the plurality of frames (a1, a2, a3) to form a frame body (A),
The piece structure (11a) is formed by stacking small pieces (20) having substantially the same cross-sectional shape in the thickness direction of the piece structure ,
Between the small pieces (20), a conductive metal foil (16a) having a size substantially equal to or smaller than the cross-sectional shape of the small pieces (20) is interposed ,
The furniture, wherein the piece structure (11a) is formed by coating the metal foil (16a) on at least a part of the frame body (A) in contact with the frame body (A) .   The furniture according to claim 1, wherein the metal foil (16a) is made of aluminum. A furniture frame body (A) composed of laminated plywood,
The frame body (A) is composed of a plurality of frames (a1, a2, a3) and a piece structure (11a),
In the vicinity of the junction of the plurality of frames (a1, a2, a3), an open space (B) is formed,
The internal shape of the space (B) is substantially equal to the outer shape of the piece structure (11a),
The piece structure (11a) is bonded to the space (B), and is configured integrally with the plurality of frames (a1, a2, a3) to form a frame body (A),
The piece structure (11a) is formed by stacking small pieces (20) having substantially the same cross-sectional shape in the thickness direction of the piece structure ,
Between the small pieces (20), a conductive metal foil (16a) having a size substantially equal to or smaller than the cross-sectional shape of the small pieces (20) is interposed ,
The piece frame structure (A) is a furniture frame (A) characterized in that the metal foil (16a) is coated on at least a part of the piece (11a) contacting the frame body (A).   The furniture frame according to claim 3, wherein the metal foil (16a) is made of aluminum. A method for manufacturing furniture composed of a laminated plywood frame (A),
The frame body (A) is composed of a plurality of frames (a1, a2, a3) and a piece structure (11a),
In the vicinity of the junction of the plurality of frames (a1, a2, a3), an open space (B) is formed,
The internal shape of the space (B) is substantially equal to the outer shape of the piece structure (11a),
The piece structure (11a) is bonded to the space (B), and is configured integrally with the plurality of frames (a1, a2, a3) to form a frame body (A),
The Komagi structure (11a) is a stack of small pieces (20) having substantially the same cross-sectional shape,
The furniture manufacturing method is:
The small piece (20) is laminated in the thickness direction of the piece structure through a conductive metal foil (16a) that is substantially equal to or smaller than the cross-sectional shape of the small piece (20) , and the metal foil ( a layer of 16a) with multiple free Maseru, the steps that form a said Komaki structure (11a) to cover the metal foil (16a) to at least a portion flush contact with the frame member (a),
Adhering the piece structure (11a) to the space (B), subjecting the furniture frame body (A) to an integrated structure by applying high-frequency dielectric heating;
A method for manufacturing furniture, comprising: A method for manufacturing furniture composed of a laminated plywood frame (A),
The frame body (A) is composed of a plurality of frames (a1, a2, a3),
In the vicinity of the junction of the plurality of frames (a1, a2, a3), an open space (B) is formed,
A piece structure (11b) having an outer shape substantially equal to the internal shape of the space (B) is fitted into the space (B) and is configured integrally with the plurality of frames (a1, a2, a3). To form a frame body (A),
The furniture manufacturing method is:
Coating the conductive metal foil (16) on the surface (12) of the piece body (11) constituting the piece structure (11b);
Forming the piece structure (11b) by further covering the surface of the piece of wood covered with the metal foil (16) with a release agent (17);
The step of fitting the piece structure (11b) into the space (B) and subjecting the furniture frame to one piece by applying high frequency dielectric heating;
After the furniture frame is integrally formed, removing the piece structure (11b);
A method for manufacturing furniture, comprising:   The method for manufacturing furniture according to claim 5 or 6, wherein the metal foil (16, 16a) is made of aluminum. A method of manufacturing a furniture frame body (A) composed of laminated plywood,
The frame body (A) is composed of a plurality of frames (a1, a2, a3) and a piece structure (11a),
In the vicinity of the junction of the plurality of frames (a1, a2, a3), an open space (B) is formed,
The internal shape of the space (B) is substantially equal to the outer shape of the piece structure (11a),
The piece structure (11a) is bonded to the space (B), and is configured integrally with the plurality of frames (a1, a2, a3) to form a frame body (A),
The Komagi structure (11a) is a stack of small pieces (20) having substantially the same cross-sectional shape,
The method of manufacturing the furniture frame body (A),
The small piece (20) is laminated in the thickness direction of the piece structure through a conductive metal foil (16a) that is substantially equal to or smaller than the cross-sectional shape of the small piece (20) , and the metal foil ( a layer of 16a) with multiple free Maseru, the steps that form a said Komaki structure (11a) to cover the metal foil (16a) to at least a portion flush contact with the frame member (a),
Adhering the piece structure (11a) to the space (B), subjecting the furniture frame body (A) to an integrated structure by applying high-frequency dielectric heating;
A method for producing a furniture frame body (A), comprising: A method for manufacturing a frame body of furniture composed of a laminated plywood frame body (A),
The frame body (A) is composed of a plurality of frames (a1, a2, a3),
In the vicinity of the junction of the plurality of frames (a1, a2, a3), an open space (B) is formed,
A piece structure (11b) having an outer shape substantially equal to the internal shape of the space (B) is fitted into the space (B) and is configured integrally with the plurality of frames (a1, a2, a3). To form a frame body (A),
The furniture manufacturing method is:
Coating the conductive metal foil (16) on the surface (12) of the piece body (11) constituting the piece structure (11b);
Forming the piece structure (11b) by further covering the surface of the piece of wood covered with the metal foil (16) with a release agent (17);
The step of fitting the piece structure (11b) into the space (B) and subjecting the furniture frame to one piece by applying high frequency dielectric heating;
After the furniture frame is integrally formed, removing the piece structure (11b);
A method of manufacturing a furniture frame, comprising:   The method for manufacturing a furniture frame according to claim 8 or 9, wherein the metal foil (16, 16a) is made of aluminum.

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