JP6679469B2

JP6679469B2 - Folding desk

Info

Publication number: JP6679469B2
Application number: JP2016230343A
Authority: JP
Inventors: 高久永岑
Original assignee: Yagiken Co Ltd
Current assignee: Yagiken Co Ltd
Priority date: 2016-11-28
Filing date: 2016-11-28
Publication date: 2020-04-15
Anticipated expiration: 2036-11-28
Also published as: JP2018086074A

Description

本発明は折り畳み机に関する。 The present invention relates to a folding desk.

軽量で折り畳みが可能な机として、特許文献１に記載の折り畳み机が開示されている。この特許文献１に記載された折り畳み机は、天板と、一対の側板と、前板とを備えている。この折り畳み机を折り畳む際には、まず、一対の側板を、天板に対して垂直な軸周りに回転させて、前板に向かって折り畳む。その後、前板に平行な状態まで折り畳まれた一対の側板とともに、前板を天板に向けて折り畳んで、机を折り畳んだ状態にする。 As a lightweight and foldable desk, a folding desk described in Patent Document 1 is disclosed. The folding desk described in Patent Document 1 includes a top plate, a pair of side plates, and a front plate. When folding the folding desk, first, the pair of side plates is rotated around an axis perpendicular to the top plate and folded toward the front plate. Then, with the pair of side plates folded to be parallel to the front plate, the front plate is folded toward the top plate, and the desk is folded.

特開２０１５−２０２１４２号公報JP, 2005-202142, A

しかし、この特許文献１の構造の場合、左右に設けられた一対の側板をまず前板に対して折り畳む必要があるため、側板２枚が折り畳まれた時点で側板同士が重ならないように、側板の前後方向の長さを設定する必要がある。そのため、側板の長さや前板の長さに制約がある。 However, in the case of the structure of Patent Document 1, it is necessary to first fold the pair of side plates provided on the left and right with respect to the front plate. Therefore, when the two side plates are folded, the side plates do not overlap each other. It is necessary to set the length in the front-back direction. Therefore, there are restrictions on the length of the side plate and the length of the front plate.

そこで、本発明は、かかる問題点に鑑みて、前板および側板の長さに制約されずに折り畳みが可能な机の提供を目的とする。 Then, in view of such a problem, an object of the present invention is to provide a desk that can be folded without being restricted by the lengths of the front plate and the side plate.

本発明の折り畳み机は、天板と、互いに対向する一対の側板と、前記一対の側板の間に配置される前板とを備え、前記一対の側板および前記前板は、前記天板に対して略垂直方向に広げられた使用状態から、前記天板に対して略平行となる折り畳み状態へと折り畳み可能な折り畳み机であって、前記折り畳み机は、前記前板を前記天板に対して旋回させる第１のヒンジ部と、前記一対の側板のうちの一方の側板を前記天板に対して旋回させる第２のヒンジ部と、前記一対の側板のうちの他方の側板を前記天板に対して旋回させる第３のヒンジ部とを備え、前記第１のヒンジ部が、前記前板の手前側の面と前記天板の下面とを接続する第１ヒンジを有し、前記第２のヒンジ部が、前記天板の下面または前記一方の側板の内側面に取り付けられた第１板状体、および、前記第１板状体と前記一方の側板の内側面または前記天板の下面とを接続する第２ヒンジを有し、前記一方の側板が前記前板に向かって折り畳まれたときに、前記一方の側板と前記前板とが略平行となるように、前記第１板状体が所定の厚さを有し、前記第３のヒンジ部が、前記天板の下面に取り付けられる第２板状体、前記他方の側板の内側面に取り付けられる第３板状体、および、前記第２板状体と前記第３板状体とを接続する第３ヒンジを有し、前記他方の側板が前記一方の側板に向かって折り畳まれたときに、前記他方の側板と前記一方の側板とが略平行となるように、前記第２板状体および前記第３板状体が所定の合計厚さを有していることを特徴とする。 The folding machine of the present invention includes a top plate, a pair of side plates facing each other, and a front plate arranged between the pair of side plates, wherein the pair of side plates and the front plate are relative to the top plate. A folding desk that can be folded from a usage state that is expanded in a substantially vertical direction to a folding state that is substantially parallel to the top plate, wherein the folding desk turns the front plate with respect to the top plate. A first hinge part, a second hinge part for rotating one side plate of the pair of side plates with respect to the top plate, and another side plate of the pair of side plates for the top plate. And a third hinge portion that swivels, the first hinge portion having a first hinge that connects a front surface of the front plate and a lower surface of the top plate, and the second hinge. Part is attached to the lower surface of the top plate or the inner surface of the one side plate. 1 plate-shaped body, and a second hinge that connects the first plate-shaped body and the inner side surface of the one side plate or the lower surface of the top plate, and the one side plate is folded toward the front plate. The first plate-shaped body has a predetermined thickness so that the one side plate and the front plate are substantially parallel to each other when the side plate is opened, and the third hinge portion is a bottom surface of the top plate. A second plate member attached to the second plate member, a third plate member attached to the inner surface of the other side plate, and a third hinge connecting the second plate member and the third plate member. , The second plate-shaped body and the third plate-shaped body so that when the other side plate is folded toward the one side plate, the other side plate and the one side plate are substantially parallel to each other. Have a predetermined total thickness.

また、前記一方の側板が前記前板に向かって折り畳まれたときに、前記第１板状体の厚さと、前記一方の側板が折り畳まれた状態のときの前記第２ヒンジの厚さとの合計が、前記前板の厚さと前記前板が折り畳まれた状態のときの第１ヒンジの厚さとの合計以上であり、前記他方の側板が前記一方の側板に向かって折り畳まれたときに、前記第２板状体の厚さ、前記第３板状体の厚さ、および前記他方の側板が折り畳まれた状態のときの前記第３ヒンジの厚さの合計が、前記第１板状体の厚さ、前記一方の側板が折り畳まれた状態のときの前記第２ヒンジの厚さ、および前記一方の側板の厚さの合計以上であることが好ましい。 Further, when the one side plate is folded toward the front plate, the total thickness of the first plate-shaped body and the thickness of the second hinge when the one side plate is folded. Is the sum of the thickness of the front plate and the thickness of the first hinge when the front plate is folded, and when the other side plate is folded toward the one side plate, The sum of the thickness of the second plate-shaped body, the thickness of the third plate-shaped body, and the thickness of the third hinge when the other side plate is folded is equal to that of the first plate-shaped body. It is preferable that the thickness is equal to or more than the sum of the thickness, the thickness of the second hinge when the one side plate is folded, and the thickness of the one side plate.

また、前記前板が、前記前板の奥側の面の一方の側板側および他方の側板側に、第１および第２係合部を有し、前記一対の側板のそれぞれが、前記第１および第２係合部にそれぞれ係合する第１および第２被係合部を有していることが好ましい。 Further, the front plate has first and second engaging portions on one side plate side and the other side plate side of a back side surface of the front plate, and each of the pair of side plates has the first side plate. It is preferable to have first and second engaged parts that engage with the second engaging part and the second engaging part, respectively.

また、前記第１および第２被係合部が、折り畳み机が広げられた状態で、前記前板の奥側の面に向かって突出する突起であり、前記一方の側板に設けられた第１係合部が、前記一方の側板のうち、前板の下端側に対向する位置に設けられ、前記他方の側板に設けられた第２係合部が、前記他方の側板の天板側に設けられ、前記一方の側板に設けられた第１係合部が、前記前板が折り畳まれた状態で、前記一方の側板を折り畳む際に前記前板に干渉せず、前記他方の側板に設けられた第２被係合部が、前記一方および他方の側板が折り畳まれた状態で、前記他方の側板を折り畳む際に前記前板および前記一方の側板に干渉しないように設けられていることが好ましい。 In addition, the first and second engaged portions are projections that project toward the inner surface of the front plate when the folding machine is unfolded, and the first and second engaged plates are provided on the one side plate. The engaging portion is provided at a position facing the lower end side of the front plate of the one side plate, and the second engaging portion provided on the other side plate is provided on the top plate side of the other side plate. The first engaging portion provided on the one side plate is provided on the other side plate without interfering with the front plate when the one side plate is folded when the front plate is folded. It is preferable that the second engaged portion is provided so as not to interfere with the front plate and the one side plate when the other side plate is folded in a state where the one side plate and the other side plate are folded. .

また、本発明の他の実施形態の折り畳み机は、天板と、互いに対向する一対の側板と、前記一対の側板の間に配置される前板とを備え、前記一対の側板および前記前板は、前記天板に対して略垂直方向に広げられた使用状態から、前記天板に対して略平行となる折り畳み状態へと折り畳み可能な折り畳み机であって、前記折り畳み机は、前記前板を前記天板に対して旋回させる第１のヒンジ部と、前記一対の側板のうちの一方の側板を前記天板に対して旋回させる第２のヒンジ部と、前記一対の側板のうちの他方の側板を前記天板に対して旋回させる第３のヒンジ部とを備え、前記第１のヒンジ部が、前記前板の手前側の面と前記天板の下面とを接続する第１ヒンジを有し、前記第２のヒンジ部が、前記天板の下面または前記一方の側板の内側面に取り付けられた第１板状体、および、前記第１板状体と前記一方の側板の内側面または前記天板の下面とを接続する第２ヒンジを有し、前記一方の側板が前記前板に向かって折り畳まれたときに、前記一方の側板と前記前板とが略平行となるように、前記第１板状体が所定の厚さを有し、前記第３のヒンジ部が、前記天板の下面または前記他方の側板の内側面に取り付けられた第２板状体と、前記第２板状体と、前記天板の下面または前記他方の側板の内側面とを接続し、前記他方の側板が前記天板に対して回転するように設けられた第３ヒンジとを有し、前記他方の側板が前記一方の側板に向かって折り畳まれたときに、前記他方の側板と前記一方の側板とが略平行となるように、前記第２板状体が所定の厚さを有していることを特徴とする。 Further, a folding machine according to another embodiment of the present invention includes a top plate, a pair of side plates facing each other, and a front plate arranged between the pair of side plates, and the pair of side plates and the front plate are A folding desk that is foldable from a use state in which it is expanded in a direction substantially perpendicular to the top plate to a folding state in which the top plate is substantially parallel to the top plate, wherein the folding desk includes the front plate. A first hinge part that pivots with respect to the top plate, a second hinge part that pivots one side plate of the pair of side plates with respect to the top plate, and the other of the pair of side plates. A third hinge portion for rotating a side plate with respect to the top plate, wherein the first hinge portion has a first hinge for connecting a front surface of the front plate and a lower surface of the top plate. Then, the second hinge portion is provided on the lower surface of the top plate or on the one side plate. A first plate-shaped member attached to a surface, and a second hinge that connects the first plate-shaped member to the inner surface of the one side plate or the lower surface of the top plate, and the one side plate is the The first plate-shaped body has a predetermined thickness and the third hinge portion is configured such that the one side plate and the front plate are substantially parallel to each other when folded toward the front plate. Connecting a second plate-shaped body attached to the lower surface of the top plate or the inner side surface of the other side plate, the second plate-shaped body, and the lower surface of the top plate or the inner side surface of the other side plate. A third hinge provided so that the other side plate rotates with respect to the top plate, and when the other side plate is folded toward the one side plate, the other side plate It is preferable that the second plate-shaped body has a predetermined thickness so that the one side plate is substantially parallel to the one side plate. To.

また、本発明の他の実施形態の折り畳み机は、前記一方の側板が前記前板に向かって折り畳まれたときに、前記第１板状体の厚さと、前記一方の側板が折り畳まれた状態のときの前記第２ヒンジの厚さとの合計が、前記前板の厚さと前記前板が折り畳まれた状態のときの第１ヒンジの厚さとの合計以上であり、前記他方の側板が前記一方の側板に向かって折り畳まれたときに、前記第２板状体の厚さ、および前記他方の側板が折り畳まれた状態のときの前記第３ヒンジの厚さの合計が、前記第１板状体の厚さ、前記一方の側板が折り畳まれた状態のときの前記第２ヒンジの厚さ、および前記一方の側板の厚さの合計以上であることが好ましい。 Further, in the folding machine according to another embodiment of the present invention, when the one side plate is folded toward the front plate, the thickness of the first plate member and the one side plate are folded. Is greater than or equal to the sum of the thickness of the front plate and the thickness of the first hinge when the front plate is folded, and the other side plate is the one The thickness of the second plate-shaped body when folded toward the side plate, and the total thickness of the third hinge when the other side plate is folded, It is preferable that the total thickness of the body, the thickness of the second hinge when the one side plate is folded, and the thickness of the one side plate is not less than the total.

本発明の折り畳み机によれば、前板および側板の長さに制約されずに折り畳みが可能となる。 According to the folding machine of the present invention, folding is possible without being restricted by the lengths of the front plate and the side plates.

本発明の一実施形態の折り畳み机の斜視図である。It is a perspective view of the folding desk of one embodiment of the present invention. 図１の折り畳み机の正面図である。It is a front view of the folding desk of FIG. 図１の折り畳み机の底面側から見た図である。It is the figure seen from the bottom side of the folding desk of FIG. 図３のＡ−Ａ線断面図である。It is the sectional view on the AA line of FIG. 図１の折り畳み机を、他方の側板の外側面側から見た側面図である。It is the side view which looked at the folding desk of FIG. 1 from the outer surface side of the other side plate. 本発明の一実施形態の折り畳み机を幅方向に見た図であり、前板が折り畳まれた状態を示す概略図である。It is the figure which looked at the folding machine of one embodiment of the present invention in the cross direction, and is a schematic diagram showing the state where the front board was folded. 図６に示される状態を、奥行方向に見た概略図である。It is the schematic which looked at the state shown in FIG. 6 in the depth direction. 図６に示される状態を、折り畳み机の底面側から見た概略図である。It is the schematic which looked at the state shown in FIG. 6 from the bottom face side of a folding desk. 図７に示される状態から、一方の側板を折り畳んだ状態を示す概略図である。FIG. 8 is a schematic view showing a state in which one side plate is folded from the state shown in FIG. 7. 図９に示される状態を、折り畳み机の底面側から見た概略図である。It is the schematic which looked at the state shown in FIG. 9 from the bottom side of a folding desk. 図９に示される状態から、他方の側板を折り畳んだ状態を示す概略図である。It is the schematic which shows the state which folded the other side plate from the state shown by FIG. 図１に示される第３のヒンジ部の拡大図である。It is an enlarged view of the 3rd hinge part shown by FIG. 本発明の他の実施形態の折り畳み机が折り畳まれた状態を示す図である。It is a figure which shows the state which the folding desk of other embodiment of this invention folded.

以下、図面を参照し、本発明の一実施形態の折り畳み机を詳細に説明する。 Hereinafter, a folding desk according to an exemplary embodiment of the present invention will be described in detail with reference to the drawings.

＜第１実施形態＞
図１に示されるように、本実施形態の折り畳み机１は、天板２と、互いに対向する一対の側板３１、３２と、一対の側板３１、３２の間に配置される前板４とを備えている。側板３１、３２は、折り畳み机１の使用状態において、机の脚部となる部分である。前板４は、一対の側板３１、３２との間に配置され、側板３１、３２同士を前板４を介して連結することにより、折り畳み机１の横揺れ（一対の側板３１、３２を結ぶ方向の揺れ）に対する強度を確保する。なお、本明細書において、折り畳み机１の高さ方向（上下方向）を参照符号Ｘで示し、一対の側板３１、３２を結ぶ方向を折り畳み机１の幅方向と呼び、参照符号Ｙで示し、折り畳み机１の高さ方向Ｘおよび幅方向Ｙの両方に垂直な方向を、折り畳み机１の奥行方向と呼び、参照符号Ｚで示す。 <First Embodiment>
As shown in FIG. 1, the folding desk 1 according to the present embodiment includes a top plate 2, a pair of side plates 31 and 32 facing each other, and a front plate 4 arranged between the pair of side plates 31 and 32. I have it. The side plates 31 and 32 are portions that become the legs of the desk when the folding desk 1 is in use. The front plate 4 is disposed between the pair of side plates 31 and 32, and the side plates 31 and 32 are connected to each other via the front plate 4 to roll the folding desk 1 (to connect the pair of side plates 31 and 32). To secure the strength against sway). In the present specification, the height direction (vertical direction) of the folding desk 1 is indicated by reference numeral X, the direction connecting the pair of side plates 31, 32 is called the width direction of the folding desk 1, and indicated by reference numeral Y, The direction perpendicular to both the height direction X and the width direction Y of the folding desk 1 is referred to as the depth direction of the folding desk 1, and is indicated by reference numeral Z.

本実施形態の折り畳み机１は、一対の側板３１、３２および前板４が、天板２に対して略垂直方向に広げられた使用状態（図１および図２参照）から、天板２に対して略平行となる折り畳み状態（図１１参照）へと折り畳まれるように構成されている。これにより、折り畳み机１を使用しないときには、コンパクトな状態とすることができ、後述するように複数の折り畳み机１を積み重ねて、倉庫などの収容部に収容することができる。折り畳み机１の用途は特に限定されないが、本実施形態の折り畳み机１は、たとえば旅館やホテルの宴会場などにおける食事の際など、収納と設置とを繰り返す持ち運び可能な折り畳み机に好適に用いられる。 In the folding desk 1 of the present embodiment, the pair of side plates 31, 32 and the front plate 4 are spread from the top plate 2 in a direction substantially perpendicular to the top plate 2 (see FIGS. 1 and 2) to the top plate 2. It is configured to be folded into a folded state (see FIG. 11) that is substantially parallel to it. Thereby, when the folding desk 1 is not used, the folding desk 1 can be in a compact state, and as described later, a plurality of folding desks 1 can be stacked and stored in a storage unit such as a warehouse. The use of the folding desk 1 is not particularly limited, but the folding desk 1 of the present embodiment is preferably used as a portable folding desk that is repeatedly stored and installed, for example, at a meal at an inn or a hotel banquet hall. .

天板２、側板３１、３２および前板４のそれぞれの内部構造は特に限定されないが、天板２、側板３１、３２および前板４のうちの少なくとも１つ（好ましくは全て）が、内部に中空部を有する軽量板から構成されることが好ましい。天板２、側板３１、３２および前板４のうちの少なくとも１つが内部に中空部を有する軽量板から構成されることにより、折り畳み机１を軽量化することができ、持ち運びが容易となる。内部に中空部を有する構造は特に限定されないが、たとえば、ハニカム内部構造があげられる。この場合、軽量化と強度の向上を両立させることができる。天板２、側板３１、３２および側板４を、ハニカム内部構造を有するものとする場合、内部に複数の六角柱が形成されるように複数の仕切壁を設けて、その仕切壁を２枚のシート材で挟み込むように構成する。２枚のシート材の間には、複数の六角柱状の空間が形成される。また、ハニカム内部構造に代えて、２枚のシート材の間に形成された中空部に、発泡樹脂が充填されていても構わない。また、ハニカム内部構造により形成された六角柱状の空間内に発泡樹脂が充填されたものであっても構わない。ここで、天板２、側板３１、３２および側板４のうち、いずれか１つをハニカム内部構造を有したものとしてもよいし、全てをハニカム内部構造を有したものとしてもよい。また、天板２、側板３１、３２および側板４のうち、いずれか１つを発泡樹脂を充填したものとしてもよいし、全てを発泡樹脂を充填したものとしてもよい。また、たとえば天板２のみをハニカム内部構造を有するものとし、側板３１、３２、側板４を発泡樹脂を充填したものとするなど、天板２、側板３１、３２および側板４の内部構造を、互いに異なる内部構造としても構わない。 The internal structure of each of the top plate 2, the side plates 31, 32, and the front plate 4 is not particularly limited, but at least one (preferably all) of the top plate 2, the side plates 31, 32, and the front plate 4 is It is preferably composed of a lightweight plate having a hollow portion. Since at least one of the top plate 2, the side plates 31, 32, and the front plate 4 is made of a lightweight plate having a hollow portion inside, the folding desk 1 can be made lightweight and easy to carry. The structure having a hollow portion inside is not particularly limited, and examples thereof include a honeycomb internal structure. In this case, both weight reduction and strength improvement can be achieved. When the top plate 2, the side plates 31, 32, and the side plate 4 have a honeycomb internal structure, a plurality of partition walls are provided so that a plurality of hexagonal columns are formed inside, and the partition walls are composed of two partition walls. It is configured to be sandwiched between sheet materials. A plurality of hexagonal column-shaped spaces are formed between the two sheet materials. Instead of the internal honeycomb structure, the hollow portion formed between the two sheet members may be filled with the foamed resin. Further, the hexagonal columnar space formed by the honeycomb internal structure may be filled with the foamed resin. Here, any one of the top plate 2, the side plates 31, 32, and the side plate 4 may have a honeycomb internal structure, or all may have a honeycomb internal structure. Further, any one of the top plate 2, the side plates 31, 32 and the side plate 4 may be filled with the foamed resin, or all of them may be filled with the foamed resin. In addition, for example, only the top plate 2 has a honeycomb internal structure, and the side plates 31, 32, and the side plate 4 are filled with foamed resin. For example, the internal structures of the top plate 2, the side plates 31, 32, and the side plate 4 are The internal structures may be different from each other.

天板２は、本実施形態では、図１〜図３に示されるように、略矩形状であるが、天板２の形状は略矩形状に限定されず、机の天板として機能するものであれば、円形、楕円形、多角形等、他の形状であっても構わない。図１〜図３に示されるように、前板４も天板２と同様に略矩形状として示されているが、前板４は広げられた一対の側板３１、３２の間に配置され、折り畳み机１を補強することができ、折り畳む際に支障のない形状であれば、その形状は特に限定されるものではない。側板３１、３２は、折り畳み机１の脚部として機能し、広げられた際に側板３１、３２の下端Ｌ（図１参照）が床などの設置場所と接するように構成されている。側板３１、３２は、天板２、前板４と同様に略矩形状として示されているが、側板３１、３２を折り畳む際に支障がなく、側板３１、３２の下端Ｌが床などと接したときに安定して折り畳み机１を支えることができる形状であればよく、その形状は特に限定されるものではない。 In the present embodiment, the top plate 2 has a substantially rectangular shape as shown in FIGS. 1 to 3, but the shape of the top plate 2 is not limited to the substantially rectangular shape, and functions as a desk top plate. However, other shapes such as a circle, an ellipse, and a polygon may be used. As shown in FIGS. 1 to 3, the front plate 4 is also shown as a substantially rectangular shape similarly to the top plate 2, but the front plate 4 is disposed between the pair of spread side plates 31, 32. The shape of the folding desk 1 is not particularly limited as long as the folding desk 1 can be reinforced and does not hinder folding. The side plates 31 and 32 function as legs of the folding desk 1, and when they are unfolded, the lower ends L (see FIG. 1) of the side plates 31 and 32 are configured to come into contact with an installation place such as a floor. The side plates 31 and 32 are shown to have a substantially rectangular shape similarly to the top plate 2 and the front plate 4, but there is no problem in folding the side plates 31 and 32, and the lower ends L of the side plates 31 and 32 are in contact with the floor or the like. The shape is not particularly limited as long as it can stably support the folding desk 1 when it is carried out.

本実施形態の折り畳み机１は、折り畳み机１を折り畳むために、図２および図３に示されるように、前板４を天板２に対して旋回させる第１のヒンジ部５と、一対の側板３１、３２のうちの一方の側板３１を天板２に対して旋回させる第２のヒンジ部６と、一対の側板３１、３２のうちの他方の側板３２を天板２に対して旋回させる第３のヒンジ部７とを備えている。本実施形態の折り畳み机１は、折り畳む際に、最初に第１のヒンジ部５により前板４が折り畳まれ、次に第２のヒンジ部６により一方の側板３１が折り畳まれ、次に第３のヒンジ部７により他方の側板３２が折り畳まれる。折り畳み机１の折り畳みの詳細については、後述する。 In order to fold the folding desk 1 of the present embodiment, as shown in FIG. 2 and FIG. 3, the folding desk 1 includes a first hinge portion 5 for rotating the front plate 4 with respect to the top plate 2 and a pair of hinges. The second hinge part 6 for rotating one of the side plates 31, 32 with respect to the top plate 2 and the other side plate 32 of the pair of side plates 31, 32 for rotation with respect to the top plate 2. And a third hinge portion 7. In the folding desk 1 of the present embodiment, when folding, the front plate 4 is first folded by the first hinge part 5, then the one side plate 31 is folded by the second hinge part 6, and then the third plate. The other side plate 32 is folded by the hinge portion 7. Details of folding of the folding desk 1 will be described later.

第１のヒンジ部５は、図１〜図５に示されるように、前板４の手前側の面４ａと天板２の下面２ａとを接続する第１ヒンジＨ１を有している。第１ヒンジＨ１は、前板４が折り畳まれたときに、前板４の手前側の面４ａが、天板２の下面２ａと対向するように、前板４と天板２とを接続している。本実施形態では、第１ヒンジＨ１の回転軸が、折り畳み机１の幅方向Ｙに沿って延びるように設けられている。本実施形態では、図２に示されるように、第１ヒンジＨ１は、前板４の幅方向Ｙに沿って２か所設けられているが、第１ヒンジＨ１の個数は特に限定されない。また、本実施形態では、第１ヒンジＨ１は、平蝶番として示されているが、第１ヒンジＨ１は平蝶番に限定されず、前板４が天板２に対して旋回可能であれば、任意の種類のヒンジを用いることができる。 As shown in FIGS. 1 to 5, the first hinge portion 5 has a first hinge H1 that connects the front surface 4a of the front plate 4 and the lower surface 2a of the top plate 2. The first hinge H1 connects the front plate 4 and the top plate 2 so that the front surface 4a of the front plate 4 faces the lower surface 2a of the top plate 2 when the front plate 4 is folded. ing. In the present embodiment, the rotation axis of the first hinge H1 is provided so as to extend along the width direction Y of the folding desk 1. In the present embodiment, as shown in FIG. 2, the first hinges H1 are provided at two locations along the width direction Y of the front plate 4, but the number of the first hinges H1 is not particularly limited. Further, in the present embodiment, the first hinge H1 is shown as a flat hinge, but the first hinge H1 is not limited to a flat hinge, and if the front plate 4 can swivel with respect to the top plate 2, Any type of hinge can be used.

第２のヒンジ部６は、天板２の下面２ａまたは一方の側板３１の内側面３１ａに取り付けられた第１板状体６１、および、第１板状体６１と一方の側板３１の内側面３１ａまたは天板２の下面２ａとを接続する第２ヒンジＨ２を有している。本実施形態では、図１〜図３に示されるように、第１板状体６１は、天板２の下面２ａに取り付けられ、第２ヒンジＨ２は、第１板状体６１と一方の側板３１の内側面３１ａとを接続している。しかし、第１板状体６１は、一方の側板３１の内側面３１ａに取り付けられ、第２ヒンジＨ２が、第１板状体６１と天板２の下面２ａとを接続しても構わない。なお、第１板状体６１の天板２または一方の側板３１への固定方法は特に限定されないが、たとえば、接着剤やネジなどの公知の固定手段により固定することができる。 The second hinge portion 6 includes a first plate-shaped body 61 attached to the lower surface 2a of the top plate 2 or an inner side surface 31a of one side plate 31, and an inner side surface of the first plate-shaped body 61 and one side plate 31. It has a second hinge H2 that connects 31a or the lower surface 2a of the top plate 2. In the present embodiment, as shown in FIGS. 1 to 3, the first plate-shaped body 61 is attached to the lower surface 2a of the top plate 2, and the second hinge H2 includes the first plate-shaped body 61 and one side plate. The inner side surface 31a of 31 is connected. However, the first plate-shaped body 61 may be attached to the inner side surface 31a of the one side plate 31, and the second hinge H2 may connect the first plate-shaped body 61 and the lower surface 2a of the top plate 2. The method of fixing the first plate-shaped body 61 to the top plate 2 or the one side plate 31 is not particularly limited, but the first plate-shaped body 61 can be fixed by a known fixing means such as an adhesive or a screw.

第１板状体６１は、折り畳み机１の折り畳み時に、最初に折り畳まれた前板４に対して、一方の側板３１が略平行に折り畳まれるように設けられる。第１板状体６１は、一方の側板３１が前板４に向かって折り畳まれたときに、一方の側板３１と前板４とが略平行となるように、第１板状体６１が所定の厚さを有している。より具体的には、一方の側板３１が前板４に向かって折り畳まれたときに、第１板状体６１の厚さと、一方の側板３１が折り畳まれた状態のときの第２ヒンジＨ２の厚さとの合計が、前板４の厚さと前板４が折り畳まれた状態のときの第１ヒンジＨ１の厚さとの合計以上となるように、第１板状体６１の厚さが設定される（図９参照）。なお、本実施形態では、第１板状体６１の厚さと、一方の側板３１が折り畳まれた状態のときの第２ヒンジＨ２の厚さとの合計が、前板４の厚さと前板４が折り畳まれた状態のときの第１ヒンジＨ１の厚さとの合計とほぼ同一となるように設定されている。本実施形態では、図７に示されるように、第１板状体６１の厚さが前板４の厚さよりも薄く構成されているが、第１板状体６１の厚さは、前板４の厚さと略同一または前板４の厚さより厚くしてもよい。このように構成することにより、一方の側板３１は、前板４に対して略平行に折り畳むことができる。 When the folding desk 1 is folded, the first plate-shaped body 61 is provided such that one side plate 31 is folded substantially parallel to the front plate 4 that is folded first. The first plate-shaped body 61 has a predetermined first plate-shaped body 61 such that when the one side plate 31 is folded toward the front plate 4, the one side plate 31 and the front plate 4 are substantially parallel to each other. Has a thickness of. More specifically, when the one side plate 31 is folded toward the front plate 4, the thickness of the first plate-shaped body 61 and the second hinge H2 when the one side plate 31 is folded. The thickness of the first plate-shaped body 61 is set so that the total of the thickness and the thickness of the front plate 4 and the thickness of the first hinge H1 when the front plate 4 is folded is equal to or more than the total. (See FIG. 9). In addition, in the present embodiment, the total thickness of the first plate-shaped body 61 and the thickness of the second hinge H2 when the one side plate 31 is in a folded state is the thickness of the front plate 4 and the front plate 4. It is set to be substantially the same as the total of the thickness of the first hinge H1 in the folded state. In the present embodiment, as shown in FIG. 7, the thickness of the first plate-shaped body 61 is thinner than the thickness of the front plate 4, but the thickness of the first plate-shaped body 61 is the same as that of the front plate. 4 may be substantially the same as the thickness of the front plate 4 or may be thicker than the thickness of the front plate 4. With this configuration, the one side plate 31 can be folded substantially parallel to the front plate 4.

第１板状体６１は、図１および図２に示されるように、一方の側板３１の内側面３１ａ（または天板２の下面２ａ）と面接触するように平坦な表面を有していることが好ましい。第１板状体６１の個数は特に限定されないが、本実施形態では、折り畳み机１の奥行方向Ｚの両端側に２つの第１板状体６１を有している。奥行方向Ｚで一対の第１板状体６１の間には、前板４が畳まれたときに、前板４が第１板状体６１に重ならないような間隔が形成されている（一対の第１板状体６１の間の間隔が、折り畳まれた前板４の奥行方向Ｚでの長さより大きい。図６および図８参照）。なお、第１板状体６１は、略矩形の板状体として示されているが、その形状は特に限定されない。 As shown in FIGS. 1 and 2, the first plate-shaped body 61 has a flat surface so as to make surface contact with the inner side surface 31a of one side plate 31 (or the lower surface 2a of the top plate 2). It is preferable. Although the number of the first plate-shaped bodies 61 is not particularly limited, in the present embodiment, the folding desk 1 has two first plate-shaped bodies 61 on both end sides in the depth direction Z. An interval is formed between the pair of first plate-shaped bodies 61 in the depth direction Z so that the front plate 4 does not overlap the first plate-shaped body 61 when the front plate 4 is folded (paired). The distance between the first plate-shaped bodies 61 is larger than the length of the folded front plate 4 in the depth direction Z. See FIGS. 6 and 8. The first plate-shaped body 61 is shown as a substantially rectangular plate-shaped body, but the shape thereof is not particularly limited.

第２ヒンジＨ２は、一方の側板３１が折り畳まれたときに、天板２に対して一方の側板３１が旋回するように設けられている。一方の側板３１が天板２に対して旋回することにより、一方の側板３１の内側面３１ａが、折り畳まれた前板４の奥側の面４ｂ（手前側の面４ａの反対側の面）と対向する（図９参照）。本実施形態では、第２ヒンジＨ２の回転軸は、折り畳み机１の奥行方向Ｚに沿って延びるように設けられている。本実施形態では、第２ヒンジＨ２は、図３に示されるように、一対の第１板状体６１にそれぞれ１つずつ設けられているが、第２ヒンジＨ２の個数は特に限定されない。また、本実施形態では、第２ヒンジＨ２は、平蝶番として示されているが、第２ヒンジＨ２は平蝶番に限定されず、一方の側板３１が天板２に対して旋回可能であれば、任意の種類のヒンジを用いることができる。 The second hinge H2 is provided so that when the one side plate 31 is folded, the one side plate 31 turns with respect to the top plate 2. As one side plate 31 pivots with respect to the top plate 2, the inner side surface 31a of the one side plate 31 has an inner surface 4b of the folded front plate 4 (a surface opposite to the front surface 4a). (See FIG. 9). In the present embodiment, the rotation axis of the second hinge H2 is provided so as to extend along the depth direction Z of the folding desk 1. In the present embodiment, one second hinge H2 is provided for each of the pair of first plate-shaped bodies 61 as shown in FIG. 3, but the number of second hinges H2 is not particularly limited. Further, in the present embodiment, the second hinge H2 is shown as a flat hinge, but the second hinge H2 is not limited to a flat hinge, and if the one side plate 31 can swivel with respect to the top plate 2. , Any type of hinge can be used.

第３のヒンジ部７は、図１〜図３に示されるように、天板２の下面２ａに取り付けられる第２板状体７１、他方の側板３２の内側面３２ａに取り付けられる第３板状体７２、および、第２板状体７１と第３板状体７２とを接続する第３ヒンジＨ３を有している。第２板状体７１の天板２への固定方法および第３板状体７２の他方の側板３２への固定方法は特に限定されず、たとえば、接着剤やネジなどの公知の固定手段により固定することができる。 As shown in FIGS. 1 to 3, the third hinge portion 7 includes a second plate-like body 71 attached to the lower surface 2a of the top plate 2 and a third plate-like body attached to the inner side surface 32a of the other side plate 32. It has a body 72 and a third hinge H3 that connects the second plate-shaped body 71 and the third plate-shaped body 72. The method of fixing the second plate-shaped body 71 to the top plate 2 and the method of fixing the third plate-shaped body 72 to the other side plate 32 are not particularly limited. For example, they are fixed by a known fixing means such as an adhesive or a screw. can do.

第２および第３板状体７１、７２は、折り畳み机１の折り畳み時に、折り畳まれた一方の側板３１に対して、他方の側板３２が略平行に折り畳まれるように設けられる。本実施形態では、他方の側板３２が一方の側板３１に向かって折り畳まれたときに、他方の側板３２と一方の側板３１とが略平行となるように、第２板状体７１および第３板状体７２が所定の合計厚さを有している。より具体的には、他方の側板３２が一方の側板３１に向かって折り畳まれたときに、第２板状体７１の厚さ、第３板状体７２の厚さ、および他方の側板３２が折り畳まれた状態のときの第３ヒンジＨ３の厚さの合計が、第１板状体６１の厚さ、一方の側板３１が折り畳まれた状態のときの第２ヒンジＨ２の厚さ、および一方の側板３１の厚さの合計以上となるように、それぞれの厚さが設定されている（図１１参照）。第２板状体７１および第３板状体７２が所定の合計厚さを有することにより、他方の側板３２を、折り畳まれた一方の側板３１に対して略平行に折り畳むことができる。なお、本実施形態では、第２板状体７１の厚さ、第３板状体７２の厚さ、および他方の側板３２が折り畳まれた状態のときの第３ヒンジＨ３の厚さの合計が、第１板状体６１の厚さ、一方の側板３１が折り畳まれた状態のときの第２ヒンジＨ２の厚さ、および一方の側板３１の厚さの合計とほぼ同一となるように設定されている。本実施形態では、第２板状体７１が、第１板状体６１に対応した厚さを有し、第３板状体７２が、一方の側板３１の厚さ以上の厚さを有している。第２板状体７１の厚さは、第１板状体６１の厚さと略同一とすることが好ましい。この場合、第１板状体６１と第２板状体７１と同一の材料を用いることができ、製造コストを低減することができる。また、第３板状体７２の厚さは、一方の側板３１と略同一の厚さとすることが好ましい。 The second and third plate-shaped bodies 71, 72 are provided such that when the folding desk 1 is folded, the other side plate 32 is folded substantially parallel to the folded one side plate 31. In the present embodiment, when the other side plate 32 is folded toward the one side plate 31, the second plate body 71 and the third plate body 71 and the third side plate 31 are arranged so that the other side plate 32 and the one side plate 31 are substantially parallel to each other. The plate-shaped body 72 has a predetermined total thickness. More specifically, when the other side plate 32 is folded toward the one side plate 31, the thickness of the second plate body 71, the thickness of the third plate body 72, and the other side plate 32 are The total thickness of the third hinges H3 in the folded state is the thickness of the first plate-like body 61, the thickness of the second hinges H2 in the state in which one side plate 31 is folded, and the one The respective thicknesses are set so as to be equal to or more than the total thickness of the side plates 31 (see FIG. 11). Since the second plate-shaped body 71 and the third plate-shaped body 72 have a predetermined total thickness, the other side plate 32 can be folded substantially parallel to the folded one side plate 31. In the present embodiment, the total thickness of the second plate 71, the thickness of the third plate 72, and the thickness of the third hinge H3 when the other side plate 32 is folded is calculated as follows. , The thickness of the first plate body 61, the thickness of the second hinge H2 when the one side plate 31 is folded, and the thickness of the one side plate 31 are set to be substantially the same. ing. In the present embodiment, the second plate-shaped body 71 has a thickness corresponding to the first plate-shaped body 61, and the third plate-shaped body 72 has a thickness equal to or larger than the thickness of the one side plate 31. ing. The thickness of the second plate-shaped body 71 is preferably substantially the same as the thickness of the first plate-shaped body 61. In this case, the same material as the first plate-shaped body 61 and the second plate-shaped body 71 can be used, and the manufacturing cost can be reduced. The thickness of the third plate-shaped body 72 is preferably substantially the same as that of the one side plate 31.

第２板状体７１は、第３板状体７２の表面と面接触するように平坦な表面を有していることが好ましい。第２板状体７１の個数は特に限定されないが、本実施形態では、折り畳み机１の奥行方向Ｚの両端側に２つの第２板状体７１を有している。奥行方向Ｚで一対の第２板状体７１は、前板４が畳まれたときに、前板４が第２板状体７１に重ならないように、互いに間隔をあけて配置されている（一対の第２板状体７１の間の間隔が、折り畳まれた前板４の奥行方向Ｚでの長さより大きい。図６および図８参照）。なお、第２板状体７１は、略矩形の板状体として示されているが、その形状は特に限定されない。 The second plate-shaped body 71 preferably has a flat surface so as to make surface contact with the surface of the third plate-shaped body 72. Although the number of the second plate-shaped bodies 71 is not particularly limited, in the present embodiment, the folding desk 1 has two second plate-shaped bodies 71 on both end sides in the depth direction Z. The pair of second plate-shaped bodies 71 in the depth direction Z are arranged at intervals so that the front plate 4 does not overlap the second plate-shaped body 71 when the front plate 4 is folded ( The distance between the pair of second plate-shaped bodies 71 is larger than the length of the folded front plate 4 in the depth direction Z. See FIGS. 6 and 8. The second plate-shaped body 71 is shown as a substantially rectangular plate-shaped body, but the shape thereof is not particularly limited.

第３板状体７２は、第２板状体７１の表面と面接触するように平坦な表面を有していることが好ましい。第３板状体７２の個数は特に限定されないが、第２板状体７１の数に応じて設けられ、本実施形態では、折り畳み机１の奥行方向Ｚの両端側に２つの第３板状体７２を有している。なお、第３板状体７２は、略矩形の板状体として示されているが、その形状は特に限定されない。 The third plate-shaped body 72 preferably has a flat surface so as to make surface contact with the surface of the second plate-shaped body 71. The number of the third plate-shaped bodies 72 is not particularly limited, but the third plate-shaped bodies 72 are provided according to the number of the second plate-shaped bodies 71, and in the present embodiment, two third plate-shaped bodies are provided at both ends in the depth direction Z of the folding machine 1. It has a body 72. The third plate-shaped body 72 is shown as a substantially rectangular plate-shaped body, but the shape thereof is not particularly limited.

第３ヒンジＨ３は、他方の側板３２が折り畳まれたときに、天板２に対して他方の側板３２が旋回するように設けられている。他方の側板３２が天板２に対して旋回することにより、他方の側板３２の内側面３２ａが、折り畳まれた一方の側板３１ａの外側面３１ｂと対向する（図１１参照）。本実施形態では、第３ヒンジＨ３の回転軸は、折り畳み机１の奥行方向Ｚに沿って延びるように設けられている。本実施形態では、第３ヒンジＨ３は、図３に示されるように、一対の第２および第３板状体７１、７２の部分において、それぞれ１つずつ設けられているが、第３ヒンジＨ３の個数は特に限定されない。また、本実施形態では、第３ヒンジＨ３は、平蝶番として示されているが、第３ヒンジＨ３は平蝶番に限定されず、他方の側板３２が天板２に対して旋回可能であれば、任意の種類のヒンジを用いることができる。 The third hinge H3 is provided so that the other side plate 32 turns with respect to the top plate 2 when the other side plate 32 is folded. By rotating the other side plate 32 with respect to the top plate 2, the inner side surface 32a of the other side plate 32 faces the outer side surface 31b of the folded one side plate 31a (see FIG. 11). In the present embodiment, the rotation axis of the third hinge H3 is provided so as to extend along the depth direction Z of the folding desk 1. In the present embodiment, as shown in FIG. 3, one third hinge H3 is provided in each of the pair of second and third plate-shaped members 71 and 72, but the third hinge H3 is provided. Is not particularly limited. In addition, in the present embodiment, the third hinge H3 is shown as a flat hinge, but the third hinge H3 is not limited to a plain hinge, and the other side plate 32 can pivot with respect to the top plate 2. , Any type of hinge can be used.

以上のように、一方の側板３１が前板４に向かって折り畳まれたときに、一方の側板３１と前板４とが略平行となるように、第１板状体６１が所定の厚さを有し、他方の側板３２が一方の側板３１に向かって折り畳まれたときに、他方の側板３２と一方の側板３１とが略平行となるように、第２板状体７１および第３板状体７２が所定の合計厚さを有している。これにより、図１１に示されるように、一方の側板３１、他方の側板３２を折り畳む際に、それぞれの側板３１、３２を天板２（前板４）に対して、略平行に折り畳むことができる。そのため、折り畳み机１を折り畳んだ後、折り畳み机１同士を積み重ねて収納が可能となり、効率の良い収納が可能となる。 As described above, when the one side plate 31 is folded toward the front plate 4, the first plate body 61 has a predetermined thickness so that the one side plate 31 and the front plate 4 are substantially parallel to each other. And the other side plate 32 is folded toward the one side plate 31 so that the other side plate 32 and the one side plate 31 are substantially parallel to each other. The body 72 has a predetermined total thickness. As a result, as shown in FIG. 11, when the one side plate 31 and the other side plate 32 are folded, the side plates 31 and 32 can be folded substantially parallel to the top plate 2 (front plate 4). it can. Therefore, after folding the folding desks 1, the folding desks 1 can be stacked and stored, which enables efficient storage.

また、本実施形態では、図１１および図１２に示されるように、最後に折り畳まれる他方の側板３２が折り畳まれたときに、折り畳み状態で他方の側板３２を保持するための、保持部Ｒを備えている。保持部Ｒは、折り畳まれた他方の側板３２が広がらないように保持する部分である。本実施形態では、保持部Ｒは、他方の側板３２を折り畳んだ際に、一方の保持部材Ｒ１が他方の保持部材Ｒ２に係合するように構成されている。より具体的には、保持部Ｒは、図１２に示されるように、第２板状体７１に設けられ、略円筒状の係合部を有する第１の保持部材Ｒ１と、第３板状体７２に設けられ、第１の保持部材Ｒ１の略円筒状の係合部と係合する、略Ｃ字状の第２の保持部材Ｒ２とを有している。第２の保持部材Ｒ２は、弾性変形可能な材料から形成され、他方の側板３２を折り畳んで、第２の保持部材Ｒ２の開放した部位が、第１の保持部材Ｒ１と当接すると押し広げられて、第１の保持部材Ｒ１と係合する。なお、保持部Ｒは、他方の側板３２が広がらないように保持することができれば、他の構造であっても構わない。 Further, in the present embodiment, as shown in FIGS. 11 and 12, when the other side plate 32 that is finally folded is folded, a holding portion R for holding the other side plate 32 in the folded state is provided. I have it. The holding portion R is a portion that holds the other folded side plate 32 so as not to spread. In the present embodiment, the holding portion R is configured such that when the other side plate 32 is folded, one holding member R1 engages with the other holding member R2. More specifically, as shown in FIG. 12, the holding portion R is provided on the second plate-shaped body 71 and has a first holding member R1 having a substantially cylindrical engaging portion and a third plate-shaped member. It has a substantially C-shaped second holding member R2 that is provided on the body 72 and that engages with the substantially cylindrical engaging portion of the first holding member R1. The second holding member R2 is made of an elastically deformable material, and when the other side plate 32 is folded and the opened portion of the second holding member R2 abuts the first holding member R1, it is expanded. And engages with the first holding member R1. The holding part R may have another structure as long as it can hold the other side plate 32 so as not to spread.

また、本実施形態の折り畳み机１では、図４、図５および図８に示されるように、前板４は、前板４の奥側の面４ｂの一方の側板３１側および他方の側板３２側に、第１および第２係合部４１、４２を有している（図４および図８参照）。また、一対の側板３１、３２のそれぞれは、図４〜図８および図１０に示されるように、第１および第２係合部４１、４２にそれぞれ係合する第１および第２被係合部Ｅ１、Ｅ２を有している。これにより、折り畳まれた他方の側板３２、一方の側板３１および前板４を順に広げた際に、前板４が広げた状態で保持される。より具体的には、第１および第２被係合部Ｅ１、Ｅ２は、折り畳み机１が広げられた状態で、前板４の奥側の面４ｂに向かって突出する突起により構成されている（図１０参照）。図４、図７および図１０に示されるように、第１被係合部Ｅ１は、本実施形態では、一方の側板３１の内側面３１ａに設けられた基部から突起が突出することにより形成されている。また、第２被係合部Ｅ２は、本実施形態では、第３板状体７２の、前板４の奥側の面４ｂに対向する面から突起が突出することにより形成されている。一方、第１および第２係合部４１、４２は、突起として示された第１および第２被係合部Ｅ１、Ｅ２が係合する係合孔として示されている。なお、第１および第２被係合部Ｅ１、Ｅ２の突起は、前板４の厚さよりも小さい突出量で突出している。また、本実施形態では、第１および第２係合部４１、４２は、略矩形状の前板４に対角状に設けられており、一方の側板３１に設けられた第１係合部Ｅ１は、前板４の下端側に対応する位置に設けられ、他方の側板３２に設けられた第２係合部Ｅ２は、前板４の上端側（天板２側）に設けられている。これにより、後述するように、一方の側板３１に設けられた第１被係合部Ｅ１は、前板４が折り畳まれた状態で、一方の側板３１を折り畳む際に前板４に干渉しない。また、他方の側板３２に設けられた第２被係合部Ｅ２は、一方および他方の側板３１、３２が折り畳まれた状態で、他方の側板３２を折り畳む際に前板４および一方の側板３１に干渉しない。したがって、折り畳み机１の使用状態において、前板４と側板３１、３２との間を、第１および第２係合部４１、４２と第１および第２被係合部Ｅ１、Ｅ２とにより安定して接続することができるうえ、このような係合構造を有していても、前板４、一方の側板３１、他方の側板３２を折り畳む際に、このような係合構造が互いに略平行な状態での折り畳みの障害とならない。 Further, in the folding desk 1 of the present embodiment, as shown in FIGS. 4, 5 and 8, the front plate 4 includes the one side plate 31 side and the other side plate 32 of the back surface 4b of the front plate 4. It has the 1st and 2nd engaging parts 41 and 42 in the side (refer to Drawing 4 and Drawing 8). Further, each of the pair of side plates 31 and 32 engages with the first and second engaging portions 41 and 42, respectively, as shown in FIGS. 4 to 8 and 10. It has parts E1 and E2. Thereby, when the other side plate 32, the one side plate 31, and the front plate 4 that are folded are sequentially expanded, the front plate 4 is held in the expanded state. More specifically, the first and second engaged portions E1 and E2 are configured by protrusions that project toward the rear surface 4b of the front plate 4 when the folding desk 1 is unfolded. (See Figure 10). As shown in FIGS. 4, 7, and 10, in the present embodiment, the first engaged portion E1 is formed by the protrusion protruding from the base portion provided on the inner side surface 31a of the one side plate 31. ing. Further, in the present embodiment, the second engaged portion E2 is formed by a protrusion protruding from the surface of the third plate-shaped body 72 that faces the rear surface 4b of the front plate 4. On the other hand, the first and second engaging portions 41 and 42 are shown as engaging holes with which the first and second engaged portions E1 and E2 shown as protrusions engage. The protrusions of the first and second engaged portions E1 and E2 protrude by a protrusion amount smaller than the thickness of the front plate 4. Further, in the present embodiment, the first and second engaging portions 41, 42 are diagonally provided on the substantially rectangular front plate 4, and the first engaging portion provided on one side plate 31. E1 is provided at a position corresponding to the lower end side of the front plate 4, and the second engaging portion E2 provided on the other side plate 32 is provided on the upper end side of the front plate 4 (top plate 2 side). . Thereby, as will be described later, the first engaged portion E1 provided on the one side plate 31 does not interfere with the front plate 4 when the one side plate 31 is folded in the state where the front plate 4 is folded. The second engaged portion E2 provided on the other side plate 32 has the front plate 4 and the one side plate 31 when the other side plate 32 is folded in a state where the one and the other side plates 31, 32 are folded. Do not interfere with. Therefore, when the folding desk 1 is in use, the space between the front plate 4 and the side plates 31, 32 is stabilized by the first and second engaging portions 41, 42 and the first and second engaged portions E1, E2. In addition, even if such an engaging structure is provided, such an engaging structure is substantially parallel to each other when the front plate 4, one side plate 31, and the other side plate 32 are folded. It does not hinder the folding in normal condition.

また、折り畳んだ状態で最外層に位置する他方の側板３２の外側面３２ｂには、図５に示されるように、折り畳まれた折り畳み机１を運ぶために、持ち手Ｇを有している。持ち手Ｇは、他方の側板３２に埋設して設けられ、折り畳み机１同士を積み重ねる際に容易に積み重ねることができる。なお、持ち手Ｇは、他方の側板３２の外側面３２ｂから突出しないように設けられることが好ましいが、わずかに突出していても構わない。持ち手Ｇは、本実施形態では、他方の側板３２のみに１つだけ設けられているが、他方の側板３２に複数設けられていてもよいし、一方の側板３１に設けられていてもよい。 Further, as shown in FIG. 5, the outer surface 32b of the other side plate 32 positioned in the outermost layer in the folded state has a handle G for carrying the folded folding desk 1. The handle G is embedded in the other side plate 32 and can be easily stacked when the folding desks 1 are stacked. The handle G is preferably provided so as not to project from the outer side surface 32b of the other side plate 32, but may slightly project. In this embodiment, only one handle G is provided only on the other side plate 32, but a plurality of handles G may be provided on the other side plate 32, or may be provided on one side plate 31. .

つぎに、本実施形態の折り畳み机１の折り畳みについてより具体的に説明する。なお、以下の説明は、あくまで一例であり、以下の説明により本発明が限定されるものではない。 Next, the folding of the folding desk 1 of this embodiment will be described more specifically. The following description is merely an example, and the present invention is not limited to the following description.

折り畳み机１を使用状態から折り畳む際には、まず、図６に示されるように、前板４を第１ヒンジＨ１を中心に旋回させ、天板２に対して折り畳む。本実施形態では、第１板状体６１の厚さと、一方の側板３１が折り畳まれた状態のときの第２ヒンジＨ２の厚さとの合計が、前板４の厚さと前板４が折り畳まれた状態のときの第１ヒンジＨ１の厚さとの合計以上であるため、一方の側板３１を天板２および前板４に対して略平行となるように、一方の側板３１を９０°旋回させることが可能となる（図９参照）。 When the folding desk 1 is folded from the use state, first, as shown in FIG. 6, the front plate 4 is swung around the first hinge H1 and is folded with respect to the top plate 2. In the present embodiment, the total thickness of the first plate-shaped body 61 and the thickness of the second hinge H2 when the one side plate 31 is folded is the thickness of the front plate 4 and the front plate 4 folded. Since it is more than the total of the thickness of the first hinge H1 in the open state, one side plate 31 is turned by 90 ° so that the one side plate 31 is substantially parallel to the top plate 2 and the front plate 4. It becomes possible (see FIG. 9).

また、一方の側板３１を折り畳む前に折り畳まれた前板４は、図８中、二点鎖線で示された状態から、実線へ示された状態へと移動する。そのため、図８および図１０に示されるように、前板４と一方の側板３１とを繋ぐ、突起として設けられた第１被係合部Ｅ１は、一方の側板３１とともに図１０に示されるように第２ヒンジＨ２を中心に旋回したときに、前板４と干渉することがない。そのため、一方の側板３１の天板２および前板４に略平行な状態での折り畳みに、突状の第１被係合部Ｅ１が邪魔になることがない。 Further, the front plate 4 folded before folding the one side plate 31 moves from the state shown by the chain double-dashed line in FIG. 8 to the state shown by the solid line. Therefore, as shown in FIGS. 8 and 10, the first engaged portion E1 provided as a projection that connects the front plate 4 and the one side plate 31 together with the one side plate 31 is shown in FIG. In addition, when turning about the second hinge H2, it does not interfere with the front plate 4. Therefore, the protruding first engaged portion E1 does not interfere with the folding of the one side plate 31 in a state substantially parallel to the top plate 2 and the front plate 4.

一方の側板３１が図９および図１０に示されるように折り畳まれると、次に他方の側板３２を折り畳む。本実施形態では、他方の側板３２が一方の側板３１に向かって折り畳まれたときに、第２板状体７１の厚さ、第３板状体７２の厚さ、および他方の側板３２が折り畳まれた状態のときの第３ヒンジＨ３の厚さの合計が、第１板状体６１の厚さ、一方の側板３１が折り畳まれた状態のときの第２ヒンジＨ２の厚さ、および一方の側板３１の厚さの合計以上である。このため、図１１に示されるように、他方の側板３２を折り畳んだ際に、他方の側板３２を天板２、前板４および一方の側板３１に対して略平行に折り畳むことができる。 When one side plate 31 is folded as shown in FIGS. 9 and 10, the other side plate 32 is then folded. In this embodiment, when the other side plate 32 is folded toward the one side plate 31, the thickness of the second plate body 71, the thickness of the third plate body 72, and the other side plate 32 are folded. The total thickness of the third hinge H3 in the folded state is the thickness of the first plate-shaped body 61, the thickness of the second hinge H2 in the state in which one side plate 31 is folded, and It is not less than the total thickness of the side plates 31. Therefore, as shown in FIG. 11, when the other side plate 32 is folded, the other side plate 32 can be folded substantially parallel to the top plate 2, the front plate 4, and the one side plate 31.

また、前板４と他方の側板３２とを繋ぐ、突起として設けられた第２被係合部Ｅ２は、本実施形態では、第３板状体７２に設けられており、第１被係合部Ｅ１と同様に、他方の側板３２とともに第３ヒンジＨ３を中心に旋回したときに、前板４と干渉することがない。さらに、第２被係合部Ｅ２は、天板２に近い位置に設けられているため、他方の側板３２の回転軸（第３ヒンジＨ３）から近い位置にあるため、既に折り畳まれた一方の側板３１とも干渉することがない。すなわち、第２被係合部Ｅ２が、高さ方向Ｘで第１被係合部Ｅ１と同じ高さの位置などに設けられる場合は、第２被係合部Ｅ２が一方の側板３１の外側面３１ｂに当接して、他方の側板３２を９０°回転させることができないが、第２被係合部Ｅ２を天板２側の端部に設けることにより、第２被係合部Ｅ２が一方の側板３１の外側面３１ｂに当接せず、係合構造を有していても、他方の側板３２の略平行な折り畳みが可能となる。 Further, the second engaged portion E2, which is provided as a protrusion and connects the front plate 4 and the other side plate 32, is provided in the third plate-shaped body 72 in the present embodiment, and is the first engaged member. Similar to the portion E1, when the third side plate 32 and the other side plate 32 are pivoted around the third hinge H3, they do not interfere with the front plate 4. Further, since the second engaged portion E2 is provided at a position close to the top plate 2, it is close to the rotation axis (third hinge H3) of the other side plate 32, and thus the one already folded one It does not interfere with the side plate 31 either. That is, when the second engaged portion E2 is provided at the same height position as the first engaged portion E1 in the height direction X, the second engaged portion E2 is outside the one side plate 31. Although it is not possible to rotate the other side plate 32 by 90 ° by abutting on the side surface 31b, by providing the second engaged portion E2 at the end portion on the top plate 2 side, the second engaged portion E2 becomes one side. Even if the side plate 31 does not come into contact with the outer side surface 31b of the side plate 31 and has an engaging structure, the other side plate 32 can be folded substantially in parallel.

他方の側板３２が折り畳まれると、図１１に示されるように、天板２、前板４、一方の側板３１、他方の側板３２が略平行な状態となる。これにより、複数の折り畳み机１を折り畳んだ状態で、互いに積み重ねることが可能となり、収納効率が向上する。 When the other side plate 32 is folded, as shown in FIG. 11, the top plate 2, the front plate 4, the one side plate 31, and the other side plate 32 are substantially parallel to each other. As a result, it is possible to stack the plurality of folding desks 1 in a folded state and to improve the storage efficiency.

＜第２実施形態＞
つぎに、折り畳み机の第２実施形態について説明する。なお、第１実施形態で説明した特徴については、第２実施形態の折り畳み机に適用することが可能であり、第１実施形態の折り畳み机と共通する点については説明を省略し、第２実施形態について、第１実施形態との相違点を中心に説明する。 <Second Embodiment>
Next, a second embodiment of the folding desk will be described. Note that the features described in the first embodiment can be applied to the folding machine of the second embodiment, and description of the points common to the folding machine of the first embodiment will be omitted, and the second embodiment will be described. The form will be described focusing on the differences from the first embodiment.

本実施形態の折り畳み机１００は、第３のヒンジ部７が、天板２の下面２ａに取り付けられた第２板状体７１０と、第２板状体７１０と、他方の側板３２の内側面３２ａとを接続し、他方の側板３２が天板２に対して回転するように設けられた第３ヒンジＨ３とを有している。本実施形態では、第３板状体は設けられていない。なお、第２板状体７１０は、他方の側板３２の内側面３２ａに取り付けられていてもよく、この場合、第２板状体７１０と、天板２の下面２ａとが、第３ヒンジＨ３により接続される。本実施形態では、他方の側板３２が一方の側板３１に向かって折り畳まれたときに、他方の側板３２と一方の側板３１とが略平行となるように、第２板状体７１０が所定の厚さを有している。より具体的には、他方の側板３２が一方の側板３１に向かって折り畳まれたときに、第２板状体７１０の厚さ、および他方の側板３２が折り畳まれた状態のときの第３ヒンジＨ３の厚さの合計が、第１板状体６１の厚さ、一方の側板３１が折り畳まれた状態のときの第２ヒンジＨ２の厚さ、および一方の側板３１の厚さの合計以上である。 In the folding desk 100 of the present embodiment, the third hinge portion 7 has the second plate-shaped body 710 attached to the lower surface 2a of the top plate 2, the second plate-shaped body 710, and the inner surface of the other side plate 32. 32a, and the other side plate 32 has a third hinge H3 provided so as to rotate with respect to the top plate 2. In this embodiment, the third plate-shaped body is not provided. The second plate-shaped body 710 may be attached to the inner side surface 32a of the other side plate 32. In this case, the second plate-shaped body 710 and the lower surface 2a of the top plate 2 are connected to the third hinge H3. Connected by. In the present embodiment, when the other side plate 32 is folded toward the one side plate 31, the second plate body 710 has a predetermined shape so that the other side plate 32 and the one side plate 31 are substantially parallel to each other. It has a thickness. More specifically, when the other side plate 32 is folded toward the one side plate 31, the thickness of the second plate body 710, and the third hinge when the other side plate 32 is folded. The total thickness of H3 is equal to or greater than the total thickness of the first plate body 61, the thickness of the second hinge H2 when the one side plate 31 is folded, and the thickness of the one side plate 31. is there.

上述した構成により、本実施形態では、第１実施形態と同様に、第３板状体を設けることなく、天板２、前板４、一方の側板３１、他方の側板３２を略平行な状態で折り畳むことができる。これにより、複数の折り畳み机を折り畳んだ状態で、互いに積み重ねることが可能となり、収納効率が向上する。 With the above-described configuration, in the present embodiment, as in the first embodiment, the top plate 2, the front plate 4, the one side plate 31, and the other side plate 32 are substantially parallel to each other without providing the third plate body. Can be folded with. As a result, a plurality of folding desks can be stacked on top of each other in a folded state, and the storage efficiency is improved.

１、１００折り畳み机
２天板
２ａ天板の下面
３１一方の側板
３１ａ一方の側板の内側面
３１ｂ一方の側板の外側面
３２他方の側板
３２ａ他方の側板の内側面
３２ｂ他方の側板の外側面
４前板
４ａ前板の手前側の面
４ｂ前板の奥側の面
４１第１係合部
４２第２係合部
５第１のヒンジ部
６第２のヒンジ部
６１第１板状体
７第３のヒンジ部
７１、７１０第２板状体
７２第３板状体
Ｅ１第１被係合部
Ｅ２第２被係合部
Ｇ持ち手
Ｈ１第１ヒンジ
Ｈ２第２ヒンジ
Ｈ３第３ヒンジ
Ｌ側板の下端
Ｒ保持部
Ｒ１第１の保持部材
Ｒ２第２の保持部材
Ｘ折り畳み机の高さ方向
Ｙ折り畳み机の幅方向
Ｚ折り畳み机の奥行方向 1, 100 Folding desk 2 Top plate 2a Lower surface of top plate 31 One side plate 31a Inner side surface of one side plate 31b Outer surface of one side plate 32 Other side plate 32a Inner side surface of the other side plate 32b Outer surface of the other side plate 4 Front plate 4a Front surface of front plate 4b Back surface of front plate 41 First engaging portion 42 Second engaging portion 5 First hinge portion 6 Second hinge portion 61 First plate-like body 7th 3 hinge parts 71, 710 2nd plate body 72 3rd plate body E1 1st engaged part E2 2nd engaged part G handle H1 1st hinge H2 2nd hinge H3 3rd hinge L side plate Lower end R Holding part R1 First holding member R2 Second holding member X Height direction of folding machine Y Width direction of folding machine Z Depth direction of folding machine

Claims

A top plate (2), a pair of side plates (31, 32) facing each other, and a front plate (4) arranged between the pair of side plates (31, 32) are provided, and the pair of side plates (31 , 32) and the front plate (4) are folded from a use state in which they are spread in a direction substantially perpendicular to the top plate (2) to a folded state in which they are substantially parallel to the top plate (2). A possible folding desk (1), wherein the folding desk (1) is
A first hinge part (5) for rotating the front plate (4) with respect to the top plate (2), and one side plate (31) of the pair of side plates (31, 32) as the top plate. A second hinge part (6) for turning with respect to (2) and a third side plate (32) of the pair of side plates (31, 32) for turning with respect to the top plate (2). And a hinge part (7) of
The first hinge part (5) is
A front hinge (H1) for connecting a front surface (4a) of the front plate (4) and a lower surface (2a) of the top plate (2),
The second hinge part (6) is
A first plate-like body (61) attached to the lower surface (2a) of the top plate (2) or the inner side surface (31a) of the one side plate (31), and
A second hinge (H2) for connecting the first plate-like body (61) and the inner side surface (31a) of the one side plate (31) or the lower surface (2a) of the top plate (2),
The first plate so that the one side plate (31) and the front plate (4) are substantially parallel to each other when the one side plate (31) is folded toward the front plate (4). The shape (61) has a predetermined thickness,
The third hinge part (7)
A second plate-like body (71) attached to the lower surface (2a) of the top plate (2),
A third plate-like body (72) attached to the inner surface (32a) of the other side plate (32), and
A third hinge (H3) connecting the second plate-like body (71) and the third plate-like body (72).
Have
When the other side plate (32) is folded toward the one side plate (31), the other side plate (32) and the one side plate (31) are substantially parallel to each other. The two plate-shaped bodies (71) and the third plate-shaped body (72) have a predetermined total thickness ,
The front plate (4) is provided with first and second engaging portions (41) on one side plate (31) side and the other side plate (32) side of the inner surface (4b) of the front plate (4). , 42),
Each of the pair of side plates (31, 32) has first and second engaged portions (E1, E2) that engage with the first and second engaging portions (41, 42),
The first engaging portion (E1) provided on the one side plate (31) is provided at a position facing the lower end side of the front plate (4) of the one side plate (31), and the other of the other side plate (31) is provided. The second engaging portion (E2) provided on the side plate (32) is provided on the top plate side of the other side plate (32),
The first engaging portion (E1) provided on the one side plate (31) is the front plate (4) when the one side plate (31) is folded while the front plate (4) is folded. ) Does not interfere,
When the second engaged portion (E2) provided on the other side plate (32) folds the other side plate (32) in a state where the one and the other side plates (31, 32) are folded. A folding desk provided so as not to interfere with the front plate (4) and the one side plate (31) .

When the one side plate (31) is folded toward the front plate (4),
The sum of the thickness of the first plate-like body (61) and the thickness of the second hinge (H2) when the one side plate (31) is folded is the thickness of the front plate (4). And the thickness of the first hinge (H1) when the front plate (4) is folded,
When the other side plate (32) is folded toward the one side plate (31),
The thickness of the second plate-like body (71), the thickness of the third plate-like body (72), and the third hinge (H3) when the other side plate (32) is folded. The total thickness is the thickness of the first plate-like body (61), the thickness of the second hinge (H2) when the one side plate (31) is folded, and the one side plate. The folding machine according to claim 1, wherein the folding machine has a total thickness of (31) or more.

The first and second engaged parts (E1, E2) are projections protruding toward the back surface (4b) of the front plate (4) in a state where the folding machine (1) is expanded. Oh Ru,
The folding desk according to claim 1 or 2 .

A top plate (2), a pair of side plates (31, 32) facing each other, and a front plate (4) arranged between the pair of side plates (31, 32) are provided, and the pair of side plates (31 , 32) and the front plate (4) are folded from a use state in which they are spread in a direction substantially perpendicular to the top plate (2) to a folded state in which they are substantially parallel to the top plate (2). A possible folding desk (100), wherein the folding desk (100) is
A first hinge part (5) for rotating the front plate (4) with respect to the top plate (2), and one side plate (31) of the pair of side plates (31, 32) as the top plate. A second hinge part (6) for turning with respect to (2) and a third side plate (32) of the pair of side plates (31, 32) for turning with respect to the top plate (2). And a hinge part (7) of
The first hinge part (5) is
A front hinge (H1) for connecting a front surface (4a) of the front plate (4) and a lower surface (2a) of the top plate (2),
The second hinge part (6) is
A first plate-like body (61) attached to the lower surface (2a) of the top plate (2) or the inner side surface (31a) of the one side plate (31), and
A second hinge (H2) for connecting the first plate-like body (61) and the inner side surface (31a) of the one side plate (31) or the lower surface (2a) of the top plate (2),
The first plate so that the one side plate (31) and the front plate (4) are substantially parallel to each other when the one side plate (31) is folded toward the front plate (4). The shape (61) has a predetermined thickness,
The third hinge part (7)
A second plate-like body (710) attached to the lower surface (2a) of the top plate (2) or the inner side surface (32a) of the other side plate (32);
The second plate body (710) is connected to the lower surface (2a) of the top plate (2) or the inner side surface (32a) of the other side plate (32), and the other side plate (32) is connected to the above. And a third hinge (H3) provided so as to rotate with respect to the top plate (2),
When the other side plate (32) is folded toward the one side plate (31), the other side plate (32) and the one side plate (31) are substantially parallel to each other. 2 plate-like body (710) has a predetermined thickness ,
The front plate (4) is provided with first and second engaging portions (41) on one side plate (31) side and the other side plate (32) side of the back surface (4b) of the front plate (4). , 42),
Each of the pair of side plates (31, 32) has first and second engaged parts (E1, E2) that engage with the first and second engaging parts (41, 42),
The first engaging portion (E1) provided on the one side plate (31) is provided at a position facing the lower end side of the front plate (4) of the one side plate (31), and the other of the other side plate (31) is provided. The second engaging portion (E2) provided on the side plate (32) is provided on the top plate side of the other side plate (32),
The first engaging portion (E1) provided on the one side plate (31) is the front plate (4) when the one side plate (31) is folded while the front plate (4) is folded. ) Does not interfere,
When the second engaged portion (E2) provided on the other side plate (32) folds the other side plate (32) in a state where the one and the other side plates (31, 32) are folded. A folding desk provided so as not to interfere with the front plate (4) and the one side plate (31) .

When the one side plate (31) is folded toward the front plate (4),
The sum of the thickness of the first plate-like body (61) and the thickness of the second hinge (H2) when the one side plate (31) is folded is the thickness of the front plate (4). And the thickness of the first hinge (H1) when the front plate (4) is folded,
When the other side plate (32) is folded toward the one side plate (31),
The total thickness of the second plate-like body (710) and the thickness of the third hinge (H3) when the other side plate (32) is folded is the first plate-like body ( 61) or more, the thickness of the second hinge (H2) when the one side plate (31) is folded, and the thickness of the one side plate (31). Folding desk described in 4 .