JP6258668B2

JP6258668B2 - Chair

Info

Publication number: JP6258668B2
Application number: JP2013226754A
Authority: JP
Inventors: 弘志早乙女; 秀峰関川
Original assignee: Okamura Corp
Current assignee: Okamura Corp
Priority date: 2013-10-31
Filing date: 2013-10-31
Publication date: 2018-01-10
Anticipated expiration: 2033-10-31
Also published as: JP2015084991A

Description

本発明は、木製の脚と座を備える椅子に係り、特に、強度及び外観的体裁を向上させた椅子に関する。 The present invention relates to a chair having wooden legs and a seat, and more particularly to a chair having improved strength and appearance.

３本または４本の木製の脚の上部に、木製の座板を取付けた椅子は、広く知られている。
また、例えば特許文献１に記載されているように、金属パイプよりなる４本の脚部の上部に円形の座板を取付けるとともに、各脚部同士を環状の足掛け部材により連結して脚部を補強した椅子もある。 Chairs with a wooden seat mounted on top of three or four wooden legs are widely known.
Further, as described in Patent Document 1, for example, a circular seat plate is attached to the upper part of four leg portions made of metal pipes, and the leg portions are connected to each other by an annular footrest member. There is also a reinforced chair.

特開平９−３１３２９９号公報JP 9-313299 A

上記のような木製の椅子を製作する場合には、強度を確保することが重要であるため、杉材のような軟質の木材によりデザイン性の高い椅子を製作することは困難であった。また近年、環境保護の観点から、間伐材を材料とした家具の需要が高まっているが、上記の杉材等、木材の種類によっては強度不足となるため、細身のシルエットでデザイン性の高い椅子を製作することができなかった。 When manufacturing a wooden chair as described above, it is important to ensure strength, so it has been difficult to manufacture a chair with high design using soft wood such as cedar. In recent years, from the viewpoint of environmental protection, the demand for furniture made from thinned wood has increased, but depending on the type of wood, such as the above cedar, the strength is insufficient, so a chair with a slender silhouette and high design. Could not be produced.

この問題を解消するためには、木製よりなる複数の脚を太くしたり、木製の座板の厚さを厚くしたりして、木製椅子の強度不足を補えばよいが、脚を太くしたり、座板の厚さを厚くしたりすると、椅子の外観的体裁が悪くなるとともに、質量も大となる。また、木目の美麗な杉材や強度の小さい木材(例えば間伐材等)を使用しようとすると、脚の太さや座の板厚を大としなければならず、椅子の意匠の自由度が大きく制限されるとともに、美感も大きく損なわれるという問題が生じる。 To solve this problem, thicken the legs made of wood, or increase the thickness of the wooden seat, to compensate for the lack of strength of the wooden chair. When the thickness of the seat plate is increased, the appearance of the chair is deteriorated and the mass is also increased. In addition, if you try to use beautiful cedar wood or low-strength wood (such as thinned wood), you must increase the thickness of the legs and the thickness of the seat, which greatly limits the degree of freedom in the design of the chair. In addition, there is a problem that aesthetics are greatly impaired.

上記特許文献１に記載されている椅子は、各脚部が金属パイプよりなり、かつ各脚部同士を環状の足掛け部材により連結して補強してあるので、強度は高いが、金属製の脚部及び環状の足掛け部材が露呈しているので、外観的体裁が悪い。 The chair described in Patent Document 1 is made of metal pipes and is reinforced by connecting the legs to each other with an annular footrest member. Since the part and the annular footrest member are exposed, the appearance is bad.

本発明は、上記問題点に鑑みてなされたもので、脚と座とが木の外観を残しながらも、強度を高めることができるとともに、木製の脚と座を肉薄の化粧材として使用することにより、デザイン性及び外観的体裁を向上させうるようにした椅子を提供することを目的としている。 The present invention has been made in view of the above problems, and the leg and the seat can increase the strength while leaving the appearance of the tree, and the wooden leg and the seat can be used as a thin cosmetic material. Thus, an object of the present invention is to provide a chair that can improve the design and appearance.

本発明によると、上記課題は、次の各項のようにして解決される。
（１）少なくとも３本の脚と、この脚の上端部に固定された座とを有する椅子において、前記脚は、金属脚と、この金属脚に、その少なくとも外面を覆うようにして取付けられた木製脚とからなり、前記座は、前記金属脚の上端部に取付けられた金属座板と、この金属座板に、その少なくとも上面を覆うようにして取付けられた木製座板とからなるものとし、前記木製脚を、金属脚の外面を覆う基片の両側縁に、金属脚における外面と連続する両側面を覆う１対の内向側片を有する、平面視内向きコ字状またはＵ字状断面をなすものとし、この木製脚を前記金属脚に外方より嵌め込んで固定する。 According to the present invention, the above-mentioned problems are solved as follows.
(1) In a chair having at least three legs and a seat fixed to the upper end of the leg, the leg is attached to the metal leg and the metal leg so as to cover at least the outer surface thereof. The seat is composed of a metal seat plate attached to the upper end portion of the metal leg, and a wooden seat plate attached to the metal seat plate so as to cover at least the upper surface thereof. The said wooden leg has a pair of inward side pieces which cover both side surfaces which continue the outer surface in a metal leg in the both-sides edge of the base piece which covers the outer surface of a metal leg, planar view inward U-shape or U-shape It shall have a cross section, and this wooden leg is fitted and fixed to the metal leg from the outside .

このような構成によると、各金属脚に木製脚を取付けて木製脚を補強するとともに、金属座板に木製座板を取付けて木製座板を補強しているので、脚と座が木の外観を残しながらも、椅子の強度が高まる。
また、木製脚及び木製座板の強度が大となるので、それらを、通常使用することができない柔らかい肉薄の木材を使用することができ、かつ木製脚及び木製座板を化粧材としての機能を持たせることができるので、細身のシルエットでデザイン性が高く、かつ見栄えのよい椅子を提供することができる。
さらに、金属脚の少なくとも外面は木製脚により、金属座板の少なくとも上面は木製座板により、それぞれ覆われているので、金属脚や金属座板が目立たず、椅子の外観的体裁が向上する。
金属脚の両側面も木製脚の内向側片により覆われるので、金属脚が外部に大きく露呈せず、椅子の外観的体裁がさらに向上する。
また、金属脚に木製脚を外方より嵌め込んで簡単に取付けることができる。 According to this configuration, the wooden legs are attached to each metal leg to reinforce the wooden legs, and the wooden seat is attached to the metal seats to reinforce the wooden seats, so the legs and seats are the appearance of the wood. The strength of the chair is increased while leaving
In addition, since the strength of the wooden legs and wooden seats increases, it is possible to use soft and thin wood that cannot be used normally, and the wooden legs and wooden seats function as cosmetics. Since it can be held, it is possible to provide a chair with a slender silhouette and high design and good appearance.
Furthermore, since at least the outer surface of the metal leg is covered with the wooden leg and at least the upper surface of the metal seat plate is covered with the wooden seat plate, the metal leg and the metal seat plate are not conspicuous, and the appearance of the chair is improved.
Since both side surfaces of the metal legs are also covered with the inwardly facing pieces of the wooden legs, the metal legs are not greatly exposed to the outside, and the appearance of the chair is further improved.
Moreover, it can be easily attached by fitting a wooden leg to the metal leg from the outside.

（２）少なくとも３本の脚と、この脚の上端部に固定された座とを有する椅子において、前記脚は、金属脚と、この金属脚に、その少なくとも外面を覆うようにして取付けられた木製脚とからなり、前記座は、前記金属脚の上端部に取付けられた金属座板と、この金属座板に、その少なくとも上面を覆うようにして取付けられた木製座板とからなるものとし、前記木製座板を、金属座板の外周面を覆う下向片を有する下向コ字状断面をなすものとし、この木製座板を前記金属座板に上方より嵌め込んで固定する。 ( 2 ) In a chair having at least three legs and a seat fixed to the upper end of the leg, the leg is attached to the metal leg and the metal leg so as to cover at least the outer surface thereof. The seat is composed of a metal seat plate attached to the upper end portion of the metal leg, and a wooden seat plate attached to the metal seat plate so as to cover at least the upper surface thereof. The wooden seat plate has a downward U-shaped cross section having a downward piece covering the outer peripheral surface of the metal seat plate, and the wooden seat plate is fitted and fixed to the metal seat plate from above .

このような構成によると、金属座板の表面が、下面を除いて木製座板により覆われるので、金属座板が大きく露呈せず、椅子の外観的体裁がさらに向上する。また、金属座板に木製座板を上方より嵌め込んで簡単に取付けることができる。 According to such a configuration, since the surface of the metal seat plate is covered with the wooden seat plate except for the lower surface, the metal seat plate is not greatly exposed, and the appearance of the chair is further improved. Moreover, a wooden seat can be easily fitted to the metal seat from above.

（３）少なくとも３本の脚と、この脚の上端部に固定された座とを有する椅子において、前記脚は、金属脚と、この金属脚に、その少なくとも外面を覆うようにして取付けられた木製脚とからなり、前記座は、前記金属脚の上端部に取付けられた金属座板と、この金属座板に、その少なくとも上面を覆うようにして取付けられた木製座板とからなるものとし、前記金属座板及び木製座板を、平面視ほぼ正三角形をなすものとし、前記金属座板の各頂端部に、下向きの突部を突設し、この突部に中空状の金属脚の上端部を嵌合し、前記突部と金属脚とをねじにより固定する。 ( 3 ) In a chair having at least three legs and a seat fixed to the upper end of the leg, the leg is attached to the metal leg and the metal leg so as to cover at least the outer surface thereof. The seat is composed of a metal seat plate attached to the upper end portion of the metal leg, and a wooden seat plate attached to the metal seat plate so as to cover at least the upper surface thereof. The metal seat plate and the wooden seat plate form a substantially equilateral triangle in plan view, and projecting downward projections are provided at the respective top end portions of the metal seat plate, and hollow metal legs are formed on the projecting portions. The upper end portion is fitted, and the protrusion and the metal leg are fixed with screws .

このような構成によると、ほぼ正三角形の座は、その頂端部において３本の脚により支持されることになるので、椅子の安定感がよくなる。
また、金属座板と金属脚との組立てが容易となるとともに、それらを分解して梱包したり、運搬したりすることができる。 According to such a configuration, since the substantially equilateral triangular seat is supported by the three legs at the top end portion, the sense of stability of the chair is improved.
Further, the metal seat plate and the metal legs can be easily assembled, and they can be disassembled and packed or transported.

（４）少なくとも３本の脚と、この脚の上端部に固定された座とを有する椅子において、前記脚は、金属脚と、この金属脚に、その少なくとも外面を覆うようにして取付けられた木製脚とからなり、前記座は、前記金属脚の上端部に取付けられた金属座板と、この金属座板に、その少なくとも上面を覆うようにして取付けられた木製座板とからなるものとし、前記木製脚における金属脚の外面を覆う基片に、内方に開口する雌ねじ孔を設け、この雌ねじ孔に前記金属脚の内方より挿入したボルトを螺合することにより、金属脚に木製脚を取付ける。 ( 4 ) In a chair having at least three legs and a seat fixed to the upper end of the leg, the leg is attached to the metal leg and the metal leg so as to cover at least the outer surface thereof. The seat is composed of a metal seat plate attached to the upper end portion of the metal leg, and a wooden seat plate attached to the metal seat plate so as to cover at least the upper surface thereof. A base piece covering the outer surface of the metal leg in the wooden leg is provided with a female screw hole that opens inward, and a bolt inserted from the inner side of the metal leg is screwed into the female screw hole, so that Ru mounting legs.

このような構成によると、木製脚取付用のボルトや雌ねじ孔が、木製脚の外面に露呈しないので、椅子の見栄えがよくなる。 According to such a configuration , the wooden leg mounting bolt and the female screw hole are not exposed on the outer surface of the wooden leg, so the appearance of the chair is improved.

（５）少なくとも３本の脚と、この脚の上端部に固定された座とを有する椅子において、前記脚は、金属脚と、この金属脚に、その少なくとも外面を覆うようにして取付けられた木製脚とからなり、前記座は、前記金属脚の上端部に取付けられた金属座板と、この金属座板に、その少なくとも上面を覆うようにして取付けられた木製座板とからなるものとし、前記木製脚と木製座板とを、それらの対向面のいずれか一方に設けたダボに、他方の対向面に設けた受け穴を嵌合して連結する。 ( 5 ) In a chair having at least three legs and a seat fixed to the upper end of the leg, the leg is attached to the metal leg and the metal leg so as to cover at least the outer surface thereof. The seat is composed of a metal seat plate attached to the upper end portion of the metal leg, and a wooden seat plate attached to the metal seat plate so as to cover at least the upper surface thereof. The wooden leg and the wooden seat plate are connected to a dowel provided on either one of the opposing surfaces by fitting a receiving hole provided on the other opposing surface .

このような構成によると、木製脚と木製座板とを隙間なく連結しうるとともに、隙間を通して、金属部分が外部より露見されるおそれがなくなる。 According to such a structure, a wooden leg and a wooden seat board can be connected without a gap, and there is no possibility that the metal part is exposed from the outside through the gap.

本発明によれば、脚と座とを木の外観を残しながらも、強度を高めることができるとともに、木製の脚と座を肉薄の化粧材として使用することにより、デザイン性及び外観的体裁を向上させた椅子を提供することができる。 According to the present invention, the strength of the legs and the seat can be enhanced while leaving the appearance of the wood, and the design and appearance can be improved by using the wooden legs and the seat as a thin cosmetic material. An improved chair can be provided.

本発明の椅子を、スツールに適用した一実施形態を示す斜視図である。It is a perspective view which shows one Embodiment which applied the chair of this invention to the stool. 同じく、分解正面図である。Similarly, it is an exploded front view. 同じく、金属脚の上端部に金属座板を固定して補強フレームを形成した正面図である。Similarly, it is the front view which fixed the metal seat board to the upper end part of a metal leg, and formed the reinforcement frame. 図３の底面図である。FIG. 4 is a bottom view of FIG. 3. 木製座板の斜視図である。It is a perspective view of a wooden seat board. 木製座板の底面図である。It is a bottom view of a wooden seat board. 木製脚を内方より見た拡大図である。It is the enlarged view which looked at the wooden leg from the inside. 図１のVIII−VIII面における拡大縦断面図である。FIG. 8 is an enlarged longitudinal sectional view taken along a VIII-VIII plane in FIG. 1. 図８におけるIX−IX線拡大横断平面図である。It is the IX-IX line expansion cross-sectional view in FIG. 同じく、X−X線拡大縦断面図である。Similarly, it is an X-X line enlarged vertical sectional view.

以下、本発明をスツールに適用した実施形態を、図面に基づいて説明する。なお、以下の説明においては、椅子の中心方向を内方、その反対方向を外方とする。
図１及び図２に示すように、本発明に係る椅子は、３本の脚１と、それらの上端部により支持された平面視ほぼ正三角形をなす座２とを備えている。 Hereinafter, an embodiment in which the present invention is applied to a stool will be described with reference to the drawings. In the following description, the center direction of the chair is inward and the opposite direction is outward.
As shown in FIGS. 1 and 2, the chair according to the present invention includes three legs 1 and a seat 2 having a substantially equilateral triangle in plan view supported by the upper ends thereof.

各脚１は、角管よりなる中空状の金属脚３と、その外面と両側面とを覆う、断面内向コ形で、金属脚３よりも若干長寸の木製脚４とからなっている。座２は、平面視ほぼ正三角形の金属座板５と、その上面と外周面を覆う木製座板６とからなっている。この実施形態では、金属脚３は鋼材により、金属座板５はアルミニウムまたはその合金により、木製脚４と木製座板６は杉材により、それぞれ形成されているが、それらの材料には、他の金属や木材を用いてもよい。 Each leg 1 includes a hollow metal leg 3 made of a square tube, and a wooden leg 4 having an inward cross-sectional shape covering the outer surface and both side surfaces thereof and slightly longer than the metal leg 3. The seat 2 is composed of a metal seat plate 5 having a substantially equilateral triangle in plan view and a wooden seat plate 6 covering the upper surface and the outer peripheral surface thereof. In this embodiment, the metal legs 3 are made of steel, the metal seat 5 is made of aluminum or an alloy thereof, and the wooden legs 4 and 6 are made of cedar. Other metals and wood may be used.

正面図である図３、底面図である図４及び金属座板５の要部の縦断面図である図１０にも示すように、金属座板５は、外周縁が緩い内向円弧状に湾曲する平面視ほぼ正三角形の基板７と、この基板７の外周縁より起立する起立片８と、基板７の各頂端部の下面より突設された下向突部９とを有している。なお、下向突部９は、金属脚３の上端部と結合されている。 As shown in FIG. 3 which is a front view, FIG. 4 which is a bottom view and FIG. 10 which is a longitudinal sectional view of a main part of the metal seat plate 5, the metal seat plate 5 is curved in an inward arc shape with a loose outer peripheral edge. The substrate 7 has a substantially equilateral triangle in plan view, the upright piece 8 that stands up from the outer peripheral edge of the substrate 7, and the downward projection 9 that protrudes from the lower surface of each top end portion of the substrate 7. The downward protrusion 9 is coupled to the upper end of the metal leg 3.

基板７の上面には、各頂端部から基板７の中心に向かって延びる３本のリブ１０が、上向きに突設され、各リブ１０の頂端部寄りには、上下方向の段付貫通孔１１を有するボス１２が形成されている。
各下向突部９の上部は、外側に若干傾斜する傾斜突部９ａとなっており、この傾斜突部９ａの下端には、金属脚３の上端部に嵌合される、ほぼ方形断面の嵌合突部９ｂが下向きに突設されている。 On the upper surface of the substrate 7, three ribs 10 extending from the respective top end portions toward the center of the substrate 7 are projected upward, and the stepped through holes 11 in the vertical direction are disposed near the top end portions of the respective ribs 10. A boss 12 is formed.
The upper part of each downward protrusion 9 is an inclined protrusion 9a that is slightly inclined outward, and the lower end of the inclined protrusion 9a has a substantially rectangular cross section that is fitted to the upper end of the metal leg 3. The fitting protrusion 9b is provided so as to protrude downward.

図２及び図１０に示すように、嵌合突部９ｂには、内外方向の上下２個のめねじ孔１３、１３が設けられ、また金属脚３の外面板３ａの上端部には、めねじ孔１３、１３と対応する取付孔１４、１４が設けられている。金属脚３の上端部に嵌合突部９ｂを嵌合し、金属脚３の外面板３ａの外方から上下の取付孔１４、１４に挿入したボルト１５、１５を、嵌合突部９ｂのめねじ孔１３、１３に螺合して締め付けることにより、各金属脚３の上端部に金属座板５が固定された補強フレームＦ(図３)が形成される。 As shown in FIGS. 2 and 10, the fitting protrusion 9 b is provided with two internal and external female screw holes 13, 13, and the upper end of the outer surface plate 3 a of the metal leg 3 is provided at the upper end. Mounting holes 14 and 14 corresponding to the screw holes 13 and 13 are provided. The fitting protrusion 9b is fitted to the upper end of the metal leg 3, and the bolts 15 and 15 inserted into the upper and lower mounting holes 14 and 14 from the outside of the outer surface plate 3a of the metal leg 3 are connected to the fitting protrusion 9b. By screwing and tightening into the female screw holes 13, 13, a reinforcing frame F (FIG. 3) in which the metal seat plate 5 is fixed to the upper end portion of each metal leg 3 is formed.

図５、図６及び図１０に示すように、木製座板６は、上面が下方になだらかに湾曲する、平面形が金属座板５と同様のほぼ正三角形をなし、その頂端部を除く外周縁には、金属座板５における頂端部を除く起立片８を覆うように上方から嵌め込まれる３個の下向片６ａが突設されている。各下向片６ａは、平面視において、金属座板５の起立片８と同じ曲率で、内向き円弧状に湾曲されている。 5, 6, and 10, the wooden seat plate 6 has an upper surface that is gently curved downward, and the planar shape is substantially an equilateral triangle similar to the metal seat plate 5, except for the top end portion. On the periphery, three downward pieces 6a are provided so as to be fitted from above so as to cover the standing pieces 8 excluding the top end portion of the metal seat plate 5. Each downward piece 6a is curved in an inward arc shape with the same curvature as the standing piece 8 of the metal seat plate 5 in plan view.

木製座板６の裏面における各頂部寄りには、下方に開口する上向き凹状の有底孔１６が形成され、この有底孔１６には、埋込みナット１７が、金属座板５の各段付貫通孔１１と対応するようにして固嵌されている。また、木製座板６の各頂端面には、２個ずつのダボ１８、１８が外向きに突設されている。
金属座板５に木製座板６を上方より嵌合したのち、図１０に示すように、金属座板５の段付貫通孔１１に下方より挿入したボルト１５を、木製座板６の埋込みナット１７に螺合させて締め付けることにより、金属座板５に木製座板６が取付けられ、金属座板５の基板７の上面と起立片８の外面とが木製座板６により覆われる。なお、この際、木製座板６の下面が、金属座板５における基板７の３本のリブ１０の上端に当接するので、木製座板６に着座しても下方に凹むおそれはない。 Near each top on the back surface of the wooden seat plate 6, an upwardly concave bottomed hole 16 that opens downward is formed. In this bottomed hole 16, an embedded nut 17 is inserted into each step of the metal seat plate 5. The holes 11 are fixed so as to correspond to the holes 11. In addition, two dowels 18, 18 project outward from each top end surface of the wooden seat plate 6.
After the wooden seat plate 6 is fitted to the metal seat plate 5 from above, bolts 15 inserted from below into the stepped through holes 11 of the metal seat plate 5 are inserted into the embedded nuts of the wooden seat plate 6 as shown in FIG. The wooden seat 6 is attached to the metal seat plate 5 by being screwed onto the metal seat plate 5, and the upper surface of the substrate 7 of the metal seat plate 5 and the outer surface of the upright piece 8 are covered with the wooden seat plate 6. At this time, since the lower surface of the wooden seat plate 6 comes into contact with the upper ends of the three ribs 10 of the substrate 7 in the metal seat plate 5, there is no possibility that the wooden seat plate 6 will dent downward.

図７及び図９に示すように、木製脚４は、金属脚３と傾斜突部９ａとの外面を覆う上下方向の基片４ａと、その上下方向の両側縁に連設され、金属脚３と傾斜突部９ａにおける外面と連続する両側面を覆う１対の内向側片４ｂ、４ｂとを備える、内方に開口するほぼ内向きコ字状の横断形状を呈している。なお、木製脚４の横断面形状は、内向きＵ字状とすることもある。 As shown in FIGS. 7 and 9, the wooden leg 4 is connected to the vertical base piece 4a covering the outer surface of the metal leg 3 and the inclined protrusion 9a and both side edges in the vertical direction. And a pair of inward side pieces 4b, 4b covering both side surfaces that are continuous with the outer surface of the inclined protrusion 9a, and has a substantially inwardly U-shaped transverse shape that opens inward. In addition, the cross-sectional shape of the wooden leg 4 may be inwardly U-shaped.

木製脚４は、正面視において上端から下端に向かってやや先細り状とされ、かつ、両内向側片４ｂの板厚を内方に向かって漸次肉薄とすることにより、両内向側片４ｂの外側面間の幅寸法を外方から内方に向かって漸次小としてある。このようにすると、木製脚４がスリム感を呈するようになり、見栄えがよくなる。
基片４ａの内面の上端部は、傾斜突部９ａの外面と当接しうる傾斜面４ｃとされ、この傾斜面４ｃには、内方に向かって開口する斜め外上方を向く有底孔１９が形成され、この有底孔１９には、埋込みナット２０が圧嵌されている。基片４ａの下端部の内面に形成された内外方向の貫通孔２１にも、埋込みナット２０が圧嵌されている。 The wooden legs 4 are slightly tapered from the upper end to the lower end in a front view, and the thicknesses of both inward side pieces 4b are gradually reduced inwardly, so that the outer sides of both inward side pieces 4b are removed. The width dimension between the side surfaces is gradually reduced from the outside toward the inside. If it does in this way, the wooden leg 4 will come to exhibit a slim feeling and it will look good.
The upper end portion of the inner surface of the base piece 4a is an inclined surface 4c that can come into contact with the outer surface of the inclined protrusion 9a. The inclined surface 4c has a bottomed hole 19 that faces obliquely outward and opens inward. An embedded nut 20 is press-fitted into the bottomed hole 19 formed. The embedded nut 20 is press-fitted into the inner and outer through holes 21 formed on the inner surface of the lower end portion of the base piece 4a.

傾斜面４ｃの若干下方において、基片４ａの内面には、上述した金属脚３の上端部を固定する上下のボルト１５の頭部が入り込む、内方に開口する上下２個の有底孔２２、２２が形成されている。また、木製脚４の上端部の内面には、木製座板６のダボ１８、１８と対応する２個の受け穴２３、２３が形成されている。 Slightly below the inclined surface 4c, the heads of the upper and lower bolts 15 for fixing the upper ends of the metal legs 3 enter into the inner surface of the base piece 4a. , 22 are formed. Further, two receiving holes 23 and 23 corresponding to the dowels 18 and 18 of the wooden seat plate 6 are formed on the inner surface of the upper end portion of the wooden leg 4.

木製脚４を金属脚３に取付けるには、図８に示すように、木製座板６のダボ１８に、木製脚４の受け穴２３を嵌合させるようにして、金属脚３と傾斜突部９ａとに木製脚４を外方から嵌め込む。この際、上下のボルト１５の頭部は、有底孔２２内に嵌合されるので、基片４ａの内面がボルト１５の頭部に干渉することはない。なお、木製座板６に設けたダボ１８に、木製脚４の受け穴２３を嵌合して、木製座板６と木製脚４とを連結すると、それらを隙間なく連結しうるとともに、隙間を通して、金属部分が外部より露見されるおそれがなくなる。 In order to attach the wooden leg 4 to the metal leg 3, as shown in FIG. 8, the metal leg 3 and the inclined protrusions are fitted to the dowels 18 of the wooden seat plate 6 so that the receiving holes 23 of the wooden leg 4 are fitted. The wooden legs 4 are fitted into 9a from the outside. At this time, since the heads of the upper and lower bolts 15 are fitted into the bottomed holes 22, the inner surface of the base piece 4 a does not interfere with the heads of the bolts 15. In addition, when the receiving hole 23 of the wooden leg 4 is fitted to the dowel 18 provided in the wooden seat plate 6 and the wooden seat plate 6 and the wooden leg 4 are connected, they can be connected without a gap and through the gap. The possibility that the metal part is exposed from the outside is eliminated.

ついで、傾斜突部９ａに設けた斜め外上方を向く段付貫通孔２４に内方より挿入したボルト２５を、木製脚４の上端部の埋込みナット２０に螺合して締め付けるとともに、金属脚３の下端部に形成された貫通孔２６に内方より挿入したボルト２５を、木製脚４の下端部の埋込みナット２０に螺合して締め付ける。これにより、木製脚４の上下両端部は、金属脚３と傾斜突部９ａとに、それらの外面と両側面を覆うようにして、かつ上面が木製座板６の頂端部の上面とほぼ整合するようにして固定される。なお、木製脚４の下端部の埋込みナット２０、及びそれに螺合されたボルト２５の先端は、貫通孔２１の外面側の拡径孔に嵌合したキャップ２７により目隠しされる。 Next, a bolt 25 inserted from the inside into a stepped through-hole 24 provided on the inclined protrusion 9a facing obliquely outward is screwed into the embedded nut 20 at the upper end of the wooden leg 4 and tightened. A bolt 25 inserted from the inside into a through hole 26 formed at the lower end of the wooden leg 4 is screwed into the embedded nut 20 at the lower end of the wooden leg 4 and tightened. As a result, the upper and lower ends of the wooden leg 4 are substantially aligned with the upper surface of the top end portion of the wooden seat 6 so that the metal leg 3 and the inclined protrusion 9a cover the outer surface and both side surfaces thereof. To be fixed. The embedded nut 20 at the lower end portion of the wooden leg 4 and the tip of the bolt 25 screwed to the embedded nut are blindfolded by a cap 27 fitted into the enlarged diameter hole on the outer surface side of the through hole 21.

このようにして、木製脚４を取付けたのち、金属脚３の下端部には、下部に幅広の鍔部２８ａを有する合成樹脂製の接床部材２８が圧嵌され、床面が傷付くのを防止しうるようになっている。 After attaching the wooden legs 4 in this way, the floor portion 28 made of synthetic resin having a wide flange portion 28a at the lower portion is press-fitted to the lower end portion of the metal legs 3, and the floor surface is damaged. Can be prevented.

以上説明したように、上記実施形態の椅子においては、３本の金属脚３の上端部に金属座板５を固定して補強フレームＦを形成し、各金属脚３に木製脚４を取付けて木製脚４を補強するとともに、金属座板５に木製座板６を取付けて木製座板６を補強しているので、脚１と座２が木の外観を残しながらも、強度の高い椅子が得られる。 As described above, in the chair of the above embodiment, the metal frame 5 is fixed to the upper ends of the three metal legs 3 to form the reinforcing frame F, and the wooden legs 4 are attached to the metal legs 3. While reinforcing the wooden legs 4 and attaching the wooden seat board 6 to the metal seat board 5, the wooden seat board 6 is reinforced, so that the chairs with high strength can be obtained while the legs 1 and the seat 2 leave the appearance of the wood. can get.

また、木製脚４と木製座板６の強度が高まるため、それらを、間伐材や通常使用することができない柔らかい肉薄の木材、例えば強度は小さいが木目の美麗な杉材等を使用することができ、かつ木製脚４及び木製座板６を化粧材としての機能を持たせることができるので、細身のシルエットでデザイン性が高く、かつ見栄えのよい椅子を提供することができる。 In addition, since the strength of the wooden legs 4 and the wooden seats 6 is increased, it is possible to use thinned wood or soft and thin wood that cannot be used normally, for example, cedar wood with a low strength but beautiful grain. In addition, since the wooden legs 4 and the wooden seat board 6 can be provided with a function as a decorative material, it is possible to provide a chair with a slim silhouette, high design, and good appearance.

金属脚３は、その外面と両側面とが木製脚４により覆われ、金属座板５も、その上面と外周面とが木製座板６により覆われているので、金属部分が大きく露呈することはなく、椅子の外観的体裁が向上する。なお、外部に露呈している金属脚３の内面と金属座板５の下面とを、木製脚４及び木製座板６と同系色に塗装すれば、外部に露呈する金属部分を目立たなくすることができる。 Since the metal leg 3 is covered with wooden legs 4 on the outer surface and both side surfaces, and the metal seat plate 5 is covered with the wooden seat plate 6 on its upper surface and outer peripheral surface, the metal portion is greatly exposed. Rather, the appearance of the chair is improved. In addition, if the inner surface of the metal leg 3 exposed to the outside and the lower surface of the metal seat plate 5 are painted in the same color as the wooden legs 4 and the wooden seat plate 6, the metal parts exposed to the outside are made inconspicuous. Can do.

以上、本発明を実施形態について説明したが、本発明は、その要旨を逸脱しない範囲内で、次のような変形や変更を施すことが可能である。
上記実施形態では、３本の脚１を有するものとしたが、３本以上の脚１を有する椅子にも、本発明を適用することができる。この際、座２の平面形状は、円形や楕円形、三角形以上の多角形等とすることができる。 As mentioned above, although this invention was demonstrated about embodiment, this invention can perform the following deformation | transformation and a change within the range which does not deviate from the summary.
In the above embodiment, the three legs 1 are provided. However, the present invention can be applied to a chair having three or more legs 1. At this time, the planar shape of the seat 2 can be a circle, an ellipse, a polygon more than a triangle, and the like.

上記実施形態では、金属脚３を角管よりなるものとして、その外面と両側面を木製脚４により覆うようにしているが、金属脚３の外面のみ、または外面と、両側面の外側の一部とを木製脚４により覆うようにしてもよい。また、金属脚３は、円形や非円形のパイプよりなるものとしてもよい。
また、金属座板５についても、その上面のみ、または上面と、起立片８の上部側の一部とを木製座板６により覆うようにしてもよい。 In the above embodiment, the metal leg 3 is made of a square tube, and the outer surface and both side surfaces thereof are covered with the wooden legs 4. However, only the outer surface of the metal leg 3 or the outer surface and one outside the both side surfaces. The part may be covered with a wooden leg 4. The metal legs 3 may be made of a circular or non-circular pipe.
Further, the metal seat plate 5 may be covered with the wooden seat plate 6 only on the upper surface or on the upper surface and a part on the upper side of the upright piece 8.

上記実施形態では、木製脚４の基片４ａの下端部に、埋込みナット２０を圧嵌するための貫通孔２１を設け、この貫通孔２１の外面側の拡径孔に目隠し用のキャップ２７を挿入しているが、下部の基片４ａの厚さを厚くすれば、貫通孔２１に代わりに、内方に開口する有底孔を設け、この有底孔に埋込みナット２０を圧嵌するようにしてもよい。このようにすれば、木製脚４の下部にキャップ２７を省略しうるだけでなく、木製脚４の下部の外面にキャップ２７が露呈しないので、脚１の見栄えがよくなる。 In the above embodiment, the through hole 21 for press-fitting the embedded nut 20 is provided at the lower end portion of the base piece 4 a of the wooden leg 4, and the blind cap 27 is attached to the enlarged diameter hole on the outer surface side of the through hole 21. Although it is inserted, if the thickness of the lower base piece 4a is increased, a bottomed hole that opens inward is provided instead of the through hole 21, and the embedded nut 20 is press-fitted into the bottomed hole. It may be. In this way, not only the cap 27 can be omitted at the lower part of the wooden leg 4, but also the appearance of the leg 1 is improved because the cap 27 is not exposed on the outer surface of the lower part of the wooden leg 4.

上記実施形態では、木製脚４における上部の有底孔１９と下部の貫通孔２１に埋込みナット２０を圧嵌しているが、この埋込みナット２０の代わりに、ボルト２５が螺合する雌ねじ孔を設けてもよい。また、木製座板６についても、埋込みナット１７の代わりに、雌ねじ孔を設けてもよい。 In the above embodiment, the embedded nut 20 is press-fitted into the upper bottomed hole 19 and the lower through-hole 21 of the wooden leg 4. Instead of the embedded nut 20, a female screw hole into which a bolt 25 is screwed is provided. It may be provided. The wooden seat plate 6 may also be provided with a female screw hole instead of the embedded nut 17.

上記実施形態では、木製座板６側にダボ１８を、木製脚４側に受け穴２３を設けたが、それらを逆として設けてもよい。 In the above embodiment, the dowel 18 is provided on the wooden seat 6 side and the receiving hole 23 is provided on the wooden leg 4 side, but they may be provided in reverse.

木製座板６の上面と外周面を、皮、布、フェルト等の表皮材により覆ったり、木製座板６の上面と表皮材との間にクッション材を挿入したりしてもよい。 The upper surface and the outer peripheral surface of the wooden seat plate 6 may be covered with a skin material such as leather, cloth, felt, or a cushion material may be inserted between the upper surface of the wooden seat plate 6 and the skin material.

本発明は、例えば、座２の後部に背凭れを取付けた椅子にも適用することができる。 The present invention can also be applied to, for example, a chair having a backrest attached to the rear portion of the seat 2.

１脚
２座
３金属脚
４木製脚
４ａ基片
４ｂ内向側片
４ｃ傾斜面
５金属座板
６木製座板
６ａ下向片
７基板
８起立片
９下向突部
９ａ傾斜突部
９ｂ嵌合突部
１０リブ
１１段付貫通孔
１２ボス
１３めねじ孔
１４取付孔
１５ボルト
１６有底孔
１７埋込みナット
１８ダボ
１９有底孔
２０埋込みナット
２１貫通孔
２２有底孔
２３受け穴
２４段付貫通孔
２５ボルト
２６貫通孔
２７キャップ
２８接床部材
２８ａ鍔部
Ｆ補強フレーム DESCRIPTION OF SYMBOLS 1 Leg 2 Seat 3 Metal leg 4 Wooden leg 4a Base piece 4b Inward side piece 4c Inclined surface 5 Metal seat plate 6 Wooden seat plate 6a Downward piece 7 Substrate 8 Standing piece 9 Downward protrusion 9a Inclined protrusion 9b Fitting protrusion Portion 10 Rib 11 Stepped through hole 12 Boss 13 Female threaded hole 14 Mounting hole 15 Bolt 16 Bottomed hole 17 Embedded nut 18 Dowel 19 Bottomed hole 20 Embedded nut 21 Through hole 22 Bottomed hole 23 Receiving hole 24 Stepped through hole 25 Bolt 26 Through-hole 27 Cap 28 Floor contact member 28a ridge F Reinforcement frame

Claims

In a chair having at least three legs and a seat fixed to the upper end of the legs,
The leg comprises a metal leg and a wooden leg attached to the metal leg so as to cover at least the outer surface thereof.
The seat is composed of a metal seat plate attached to the upper end of the metal leg, and a wooden seat plate attached to the metal seat plate so as to cover at least the upper surface thereof ,
A plan view inwardly U-shaped or U-shaped cross section having a pair of inward side pieces covering the wooden legs on both side edges of the base piece covering the outer surface of the metal legs and covering both side faces continuous with the outer surface of the metal legs. The chair is characterized in that the wooden leg is fitted and fixed to the metal leg from the outside .

In a chair having at least three legs and a seat fixed to the upper end of the legs,
The leg comprises a metal leg and a wooden leg attached to the metal leg so as to cover at least the outer surface thereof.
The seat is composed of a metal seat plate attached to the upper end of the metal leg, and a wooden seat plate attached to the metal seat plate so as to cover at least the upper surface thereof ,
The wooden seat plate has a downward U-shaped cross section having a downward piece covering the outer peripheral surface of the metal seat plate, and the wooden seat plate is fixed by being fitted into the metal seat plate from above. And a chair.

In a chair having at least three legs and a seat fixed to the upper end of the legs,
The leg comprises a metal leg and a wooden leg attached to the metal leg so as to cover at least the outer surface thereof.
The seat is composed of a metal seat plate attached to the upper end of the metal leg, and a wooden seat plate attached to the metal seat plate so as to cover at least the upper surface thereof ,
The metal seat plate and the wooden seat plate form a substantially equilateral triangle in plan view, and a downward projection is provided on each top end portion of the metal seat plate, and an upper end of a hollow metal leg is formed on the projection. A chair characterized in that the projections and metal legs are fixed with screws .

In a chair having at least three legs and a seat fixed to the upper end of the legs,
The leg comprises a metal leg and a wooden leg attached to the metal leg so as to cover at least the outer surface thereof.
The seat is composed of a metal seat plate attached to the upper end of the metal leg, and a wooden seat plate attached to the metal seat plate so as to cover at least the upper surface thereof ,
A base piece covering the outer surface of the metal leg in the wooden leg is provided with a female screw hole that opens inward, and a bolt inserted from the inside of the metal leg is screwed into the female screw hole, whereby the wooden leg is attached to the metal leg. A chair characterized by mounting .

In a chair having at least three legs and a seat fixed to the upper end of the legs,
The leg comprises a metal leg and a wooden leg attached to the metal leg so as to cover at least the outer surface thereof.
The seat is composed of a metal seat plate attached to the upper end of the metal leg, and a wooden seat plate attached to the metal seat plate so as to cover at least the upper surface thereof ,
A chair characterized in that the wooden leg and the wooden seat plate are connected to a dowel provided on one of the opposing surfaces by fitting a receiving hole provided on the other opposing surface .