JP4291549B2

JP4291549B2 - Folding desk

Info

Publication number: JP4291549B2
Application number: JP2002166893A
Authority: JP
Inventors: 健治坂根
Original assignee: Korg Inc
Current assignee: Korg Inc
Priority date: 2002-06-07
Filing date: 2002-06-07
Publication date: 2009-07-08
Anticipated expiration: 2022-06-07
Also published as: JP2004008523A

Description

【０００１】
【発明の属する技術分野】
この発明は例えば鍵盤楽器演奏用の台、或いは勉強机、会議用机等として利用することができる折畳机に関する。
【０００２】
【従来の技術】
従来より不用時分解して仕舞っておくことができる机がある。その一例としては図１６に示すように、天板１の両側に側板２を木ネジ３で取付け、更に側板２の内面間に補強板３を差し渡し、側板２の立脚姿勢を補強する構造とした机がある。
【０００３】
【発明が解決しようとする課題】
図１６に示した机は木ネジ３を用いて組立てを行なう構造であるため少なくともドライバ程度の工具を用いる必要がある。組立後再度仕舞うには再び木ネジを取り外さなければならないため、取扱いが面倒である特に楽器の演奏用として利用する場合、演奏会場が変わる毎に分解と組立を繰返す必要があるため、取扱いが面倒である。
この発明の目的は工具を用いなくとも組立を行なうことができる折畳机を提供するものである。
【０００４】
【課題を解決するための手段】
この発明の請求項１では長方形状の天板と、この天板の短辺に沿って回動軸芯を持つ姿勢に装着された第１蝶番と、この第１蝶番によって天板の両端に天板の板面と平行する姿勢と直交する姿勢に回動できるように装着され、天板と直交する向に回動した姿勢において机の脚として作用する一対の側板と、天板の一方の長辺に沿って、この長辺と平行する向に回動軸芯を持つ姿勢に装着された第２蝶番と、天板の長手方向の寸法にほぼ等しい寸法を有し、第２蝶番により天板の天面側の面に平行する姿勢から、天板の板面と直交する向に回動し、この回動姿勢において立脚姿勢にある一対の側板の板面間に差し渡されて側板の立脚姿勢を補強する補強板と、レバーの回動操作によって引掛具を移動させ、この引掛具の移動により引掛具に係合させた爪とレバーの回動支点との間に締付力を発生させ、この締付力を上記補強板の回動遊端と一対の側板との間のそれぞれに印加して側板の立脚姿勢を固定する一対の固定具とを具備し、上記引掛具が上記補強板に装着され、上記爪が上記側板の側辺側に装着されることにより構成される折畳机を提案する。
【０００５】
この発明の請求項２では請求項１で提案した折畳机において、補強板と天板を長手方向のほぼ中央位置で切断して２分割し、２分割された補強板の分割線上を蝶番で結合して天板及び補強板の長手方向の寸法の約１／２の寸法に折畳むことができる構成とした折畳机を提案する。
【０００６】
作用
この発明の折畳机によれば天板及び脚となるべき側板と、補強板は全て蝶番によって連結されており、天板の両側に側板を直交する向に回動させ、この側板の板面間に補強板を差し込む方向に回動させ、固定具で補強板と側板との間を係合させることにより組立が完了する。
従って、請求項１でする提案する折畳机によれば工具を全く用いることなく、簡単に組立てることができる。また折畳も簡単に行なうことができる。
【０００７】
更に、この発明の請求項２で提案する折畳机によれば天板及び補強板を長手方向のほぼ１／２の寸法の位置で切断し、その切断位置において、２分割した補強板を蝶番で結合したから、全体を更に１／２の寸法に折畳むことができる。この結果コンパクトに折畳むことができるため、仕舞っておく場合も、また移動時の搬送状態でも場所を占めず取扱いが容易である。
【０００８】
【発明の実施の形態】
図１にこの発明のよる折畳机の実用状態、図２に背面図を示す。図中１００はこの発明による折畳机、２００はこの折畳机１００の上に搭載した電子鍵盤楽器を示す。
図中１０１は机の上面板となる長方形状の天板を示す。天板１０１は側板１０３が立脚状態にあるとき、側板１０３の上部間に差し渡されて水平な姿勢に支持される。天板１０１と側板１０３の間は第１蝶番１０２により回動自在に連結される。つまり、第１蝶番１０２は天板１０１の短辺に沿う向に回動軸を持つ姿勢で天板１０１の短辺に装着され、この第１蝶番により側板１０３が図２に示す矢印Ａの方向に回動できるように天板１０１に連結される。従って一対の側板１０３は天板１０１の裏側の面に平行する姿勢と、天板１０１の板面と直交する姿勢をとることができる。
【０００９】
天板１０１の一方の長辺に沿って第２蝶番１０４が装着される。この第２蝶番１０４は天板１０１の長辺に沿う方向に回動軸芯を有し、この第２蝶番１０４により補強板１０５を天板１０１の長辺と平行する軸線上を回動支点として回動自在に天板１０１に連結する。図３及び図４に第２蝶番１０４の詳細を示す。この実施例では第２蝶番１０４の回動軸Ｘを天板１０１の長辺の縁より少なくとも補強板１０５の厚みＴ１より大きい距離Ｔ２だけ離れた位置に設置した場合を示す。このように第２蝶番１０４の回動軸Ｘの位置を設定することにより、補強板１０５を天板１０１の板面と直交する姿勢に回動した場合（初期位置から約２７０°回転させる）に補強板１０５の厚み部分が図４に示すように天板１０１の端面と回動軸Ｘとの間に入ることができる。補強板１０５を図４に示す位置に回動させることにより側板１０３は補強板１０５の短辺によって規制され、立脚姿勢に固定される。
【００１０】
この発明では更に、この立脚姿勢を確保するために、補強板１０５の回動遊端側に固定具１０６を設ける。固定具１０６としては一般にパチン錠と呼ばれている締付金具を用いることができる。図５に固定具１０６の締付状況を示す。この例では側板１０３の側辺に切欠１０３Ａを形成し、この切欠１０３Ａの凹部面に爪１０６Ａを装着し、この爪１０６Ａに固定具１０６の引掛具１０６Ｂを係合させ、レバーを倒すことにより発生するパチン錠の締付力により側板１０３の側面を補強板１０５の端面に引き付ける。これにより、側板１０３と補強板１０５との間はガタツキなく固定される。この状態では側板１０５の上端に天板１０１の長手方向の力を加えても側板１０５は傾動することなく、強固に直立姿勢を維持する。
【００１１】
図１及び図２に示す状態から折畳む場合は、
▲１▼ 固定具１０６の締付力を解除し、側板１０３との係合を解く、
▲２▼ この状態から補強板１０５を上方に回動させ図３に示す天板１０１の上面と平行する姿勢に移動させる。
▲３▼ 側板１０３を天板１０１の裏面に平行する姿勢に回動する。
折畳んだ状態を図６乃至図８に示す。尚、図８に示す１０７は補強板１０５の短辺の回動遊端側に取り付けた例えばフェルトのような保護材を示す。この保護材１０７を取り付けることにより、補強板１０５を回動させる際に、側板１０３の板面に傷を付けることを防止することができる。
【００１２】
また、上述では第２蝶番１０４の回動軸Ｘを天板１０１長辺からＴ２だけ離れた位置に設置した例を説明したが、この構造は必ずしも本発明の必須要件ではない。つまり、例えば図９及び図１０に示すように第２蝶番１０４の回動軸Ｘを天板１０１の長辺に接近させて配置しても、補強板１０５を約２７０°回動させ、天板１０１の板面と直交する姿勢にすることができる。ただし、この場合には第２蝶番１０４の回動軸Ｘと補強板１０５の板面までを天板１０１の厚み相当分Ｔ１だけ離す必要がある。
【００１３】
図１１乃至図１５は請求項２で提案する折畳机の実施例を示す。請求項２で提案する折畳机は天板１０１と補強板１０５の長手方向の中央位置において長手方向に関して２分割し、２分割された補強板１０５の切断部分を第３蝶番１１１により回動自在に連結し、第３蝶番１１１により補強板１０５と天板１０１を１／２の長さに折畳む構造とした場合を示す。図１２は１／２の長さに折畳んだ状態を示す。図１３に組立た状態を示す。図１３に示すように補強板１０５の中央位置において第３蝶番１１１により連結されており、また、端面同士が突き当たるため、補強板１０５としての形状が維持され、側板１０３の立脚姿勢を安定に維持することができる。
【００１４】
天板１０１の端面には例えば図１４又は図１５に示すように凹凸係合手段１０８、１０９を形成する。この凹凸係合手段１０８、１０９を係合させることにより、天板１０１の端面の係合が外れることを阻止する構造とすればよい。
【００１５】
【発明の効果】
以上説明したように、この発明によれば工具を用いなくとも組立及び折畳みを行なうことができる。従って楽器の演奏に用いる場合に。演奏会場でも組立及び折畳みを短時間にすませることができる効果が得られる。
また家庭で用いる場合でも折畳みを簡単に行なうことができるから、不用な場合は折畳んで仕舞っておくことができ、また必要な場合も簡単に組立てることができるから、室内を無駄なく利用することができる効果が得られる。
【図面の簡単な説明】
【図１】この発明の折畳机の実用状態を説明するための正面図。
【図２】この説明による折畳机の背面図。
【図３】図１及び図２に示した実施例に用いた第２蝶番の詳細を説明するための側面図。
【図４】図３と同様の側面図。
【図５】この発明に用いた固定具の一例を説明するための正面図。
【図６】この発明の折畳机を折畳んだ状態を説明するための平面図。
【図７】図６の側面図。
【図８】図６を他の向きから見た側面図。
【図９】この発明で用いることができる第２蝶番の他の例を示す側面図。
【図１０】図９と同様の側面図。
【図１１】この説明の請求項２で提案する折畳机の実施例を説明するための側面図。
【図１２】図１１に示した状態から更に１／２の長さに折畳んだ状態を説明するための側面図。
【図１３】請求項２で提案した折畳机を組立た状態を説明するための背面図。
【図１４】請求項２で提案した折畳机の天板に施す構造を説明するための平面図。
【図１５】図１３と同様の平面図。
【図１６】従来の技術を説明するための斜視図。
【符号の説明】
１００折畳机１０５補強板
１０１天板１０６固定具
１０２第１蝶番１０７保護材
１０３側板１０８、１０９凹凸係合手段
１０４第２蝶番１１１第３蝶番[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a folding desk that can be used, for example, as a keyboard instrument playing table, a study desk, a conference desk, or the like.
[0002]
[Prior art]
There are desks that can be disassembled when not in use. As an example, as shown in FIG. 16, the side plate 2 is attached to both sides of the top plate 1 with wood screws 3, and the reinforcing plate 3 is passed between the inner surfaces of the side plate 2 to reinforce the standing posture of the side plate 2. There is a desk.
[0003]
[Problems to be solved by the invention]
Since the desk shown in FIG. 16 has a structure in which it is assembled using the wood screws 3, it is necessary to use at least a tool equivalent to a screwdriver. Since it is necessary to remove the wood screw again in order to finish again after assembling, handling is troublesome especially when used for playing musical instruments, because it is necessary to repeat disassembly and assembly every time the performance venue changes. It is.
An object of the present invention is to provide a folding desk that can be assembled without using a tool.
[0004]
[Means for Solving the Problems]
According to a first aspect of the present invention, a rectangular top plate, a first hinge mounted in a posture having a pivot axis along the short side of the top plate, and the top hinges are attached to both ends of the top plate by the first hinge. A pair of side plates that are mounted so as to be able to rotate in a posture orthogonal to the posture parallel to the plate surface of the plate, and that act as desk legs in a posture rotated in a direction perpendicular to the top plate, and one length of the top plate A second hinge mounted in a posture having a pivot axis in a direction parallel to the long side along the side, and a size substantially equal to the length in the longitudinal direction of the top plate. From the posture parallel to the top surface side of the top plate, it rotates in a direction orthogonal to the plate surface of the top plate, and is passed between the plate surfaces of the pair of side plates in the standing posture in this turning posture, and the pedestal of the side plate Reinforcement plate that reinforces the posture and the hooking tool is moved by rotating the lever, and the hooking tool is engaged by the movement of this hooking tool. A clamping force is generated between the raised claw and the pivot fulcrum of the lever, and this clamping force is applied to each between the pivot free end of the reinforcing plate and the pair of side plates so that the standing posture of the side plate And a pair of fixtures for fixing the hook, the folding device is mounted on the reinforcing plate, and the claw is mounted on the side of the side plate .
[0005]
According to a second aspect of the present invention, in the folding desk proposed in the first aspect, the reinforcing plate and the top plate are cut at approximately the center position in the longitudinal direction and divided into two parts, and a hinge on the dividing line of the two divided reinforcing plates. Proposed is a folding desk that is configured to be combined and foldable to about half the longitudinal dimension of the top plate and the reinforcing plate.
[0006]
Action According to the folding desk of the present invention, the side plate to be the top plate and the legs and the reinforcing plate are all connected by a hinge, and the side plates are rotated on both sides of the top plate in a direction orthogonal to each other. The assembly is completed by rotating the reinforcing plate between the side plates so that the reinforcing plate is inserted, and engaging the reinforcing plate and the side plate with a fixture.
Therefore, according to the proposed folding desk of claim 1, it can be easily assembled without using any tools. It can also be folded easily.
[0007]
Furthermore, according to the folding desk proposed in claim 2 of the present invention, the top plate and the reinforcing plate are cut at a position having a size of approximately half of the longitudinal direction, and the reinforcing plate divided into two at the cutting position is hinged. The whole can be further folded to a half size. As a result, it can be folded in a compact manner, so that it can be handled easily without taking up space even when it is finished or in a transport state during movement.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
FIG. 1 shows a practical state of a folding desk according to the present invention, and FIG. 2 shows a rear view. In the figure, reference numeral 100 denotes a folding desk according to the present invention, and 200 denotes an electronic keyboard instrument mounted on the folding desk 100.
In the figure, reference numeral 101 denotes a rectangular top plate which is a top plate of the desk. When the side plate 103 is in the standing state, the top plate 101 is passed between the upper portions of the side plates 103 and supported in a horizontal posture. The top plate 101 and the side plate 103 are rotatably connected by a first hinge 102. That is, the first hinge 102 is mounted on the short side of the top plate 101 in a posture having a rotation axis in a direction along the short side of the top plate 101, and the side plate 103 is moved in the direction of arrow A shown in FIG. It is connected to the top plate 101 so that it can be rotated. Therefore, the pair of side plates 103 can take a posture parallel to the surface on the back side of the top plate 101 and a posture orthogonal to the plate surface of the top plate 101.
[0009]
A second hinge 104 is attached along one long side of the top plate 101. The second hinge 104 has a pivot axis in the direction along the long side of the top plate 101, and the second hinge 104 makes the reinforcing plate 105 a pivot point on an axis parallel to the long side of the top plate 101. It connects with the top plate 101 so that rotation is possible. 3 and 4 show the details of the second hinge 104. FIG. This embodiment shows a case where the rotation axis X of the second hinge 104 is installed at a position separated from the edge of the long side of the top plate 101 by a distance T2 that is at least larger than the thickness T1 of the reinforcing plate 105. When the position of the rotation axis X of the second hinge 104 is set in this way, the reinforcing plate 105 is rotated in a posture orthogonal to the plate surface of the top plate 101 (rotated by about 270 ° from the initial position). The thickness portion of the reinforcing plate 105 can enter between the end surface of the top plate 101 and the rotation axis X as shown in FIG. By rotating the reinforcing plate 105 to the position shown in FIG. 4, the side plate 103 is regulated by the short side of the reinforcing plate 105 and is fixed in the standing posture.
[0010]
Further, in the present invention, in order to secure this standing posture, a fixing tool 106 is provided on the rotating free end side of the reinforcing plate 105. As the fixture 106, a fastening bracket generally called a snap lock can be used. FIG. 5 shows a tightening state of the fixture 106. In this example forms a notch 103A on the side edges of the side plate 103, the cut nails 106A is mounted in the recess surface of 103A, engaged with the hook member 106B of the fixture 106 into the pawl 106A, more Killing lever The side surface of the side plate 103 is attracted to the end surface of the reinforcing plate 105 by the tightening force of the generated snap lock. Accordingly, the side plate 103 and the reinforcing plate 105 are fixed without rattling. In this state, even if a longitudinal force of the top plate 101 is applied to the upper end of the side plate 105, the side plate 105 does not tilt and maintains the upright posture firmly .
[0011]
When folding from the state shown in FIG. 1 and FIG.
(1) Release the tightening force of the fixture 106 and release the engagement with the side plate 103.
(2) From this state, the reinforcing plate 105 is rotated upward and moved to a posture parallel to the top surface of the top plate 101 shown in FIG.
(3) The side plate 103 is rotated in a posture parallel to the back surface of the top plate 101.
The folded state is shown in FIGS. Note that reference numeral 107 shown in FIG. 8 denotes a protective material such as felt attached to the rotating free end side of the short side of the reinforcing plate 105. By attaching the protective material 107, it is possible to prevent the plate surface of the side plate 103 from being damaged when the reinforcing plate 105 is rotated.
[0012]
In the above description, the example in which the rotation axis X of the second hinge 104 is installed at a position separated by T2 from the long side of the top plate 101 has been described. However, this structure is not necessarily an essential requirement of the present invention. That is, for example, as shown in FIGS. 9 and 10, even if the rotation axis X of the second hinge 104 is disposed close to the long side of the top plate 101, the reinforcing plate 105 is rotated by about 270 ° to The posture can be orthogonal to the plate surface 101. However, in this case, it is necessary to separate the rotation axis X of the second hinge 104 and the plate surface of the reinforcing plate 105 by a thickness equivalent to the thickness of the top plate 101.
[0013]
11 to 15 show an embodiment of the folding desk proposed in claim 2. The folding desk proposed in claim 2 is divided into two in the longitudinal direction at the longitudinal center position of the top plate 101 and the reinforcing plate 105, and the cut portion of the divided reinforcing plate 105 can be rotated by the third hinge 111. A case where the reinforcing plate 105 and the top plate 101 are folded to a half length by the third hinge 111 is shown. FIG. 12 shows a state of being folded to a half length. FIG. 13 shows the assembled state. As shown in FIG. 13, the reinforcing plate 105 is connected by the third hinge 111 at the center position, and the end surfaces abut against each other, so that the shape as the reinforcing plate 105 is maintained and the standing posture of the side plate 103 is stably maintained. can do.
[0014]
As shown in FIG. 14 or FIG. 15, for example, concave and convex engaging means 108 and 109 are formed on the end surface of the top plate 101. A structure that prevents the end surface of the top plate 101 from being disengaged by engaging the concavo-convex engaging means 108 and 109 may be adopted.
[0015]
【The invention's effect】
As described above, according to the present invention, assembly and folding can be performed without using a tool. Therefore, when used for playing musical instruments. The effect that assembly and folding can be completed in a short time also in a performance hall is acquired.
Also, since it can be folded easily even when used at home, it can be folded up when not needed, and can be easily assembled when necessary, so that the room can be used without waste. The effect that can be obtained.
[Brief description of the drawings]
FIG. 1 is a front view for explaining a practical state of a folding desk according to the present invention.
FIG. 2 is a rear view of a folding desk according to this explanation.
FIG. 3 is a side view for explaining details of a second hinge used in the embodiment shown in FIGS. 1 and 2;
4 is a side view similar to FIG. 3. FIG.
FIG. 5 is a front view for explaining an example of a fixture used in the present invention.
FIG. 6 is a plan view for explaining a folded state of the folding desk according to the present invention.
7 is a side view of FIG. 6. FIG.
FIG. 8 is a side view of FIG. 6 viewed from another direction.
FIG. 9 is a side view showing another example of the second hinge that can be used in the present invention.
10 is a side view similar to FIG. 9. FIG.
FIG. 11 is a side view for explaining an embodiment of the folding desk proposed in claim 2 of this description;
FIG. 12 is a side view for explaining a state in which the state shown in FIG.
FIG. 13 is a rear view for explaining a state in which the folding desk proposed in claim 2 is assembled.
FIG. 14 is a plan view for explaining the structure applied to the top plate of the folding desk proposed in claim 2;
15 is a plan view similar to FIG.
FIG. 16 is a perspective view for explaining a conventional technique.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 100 Folding machine 105 Reinforcement plate 101 Top plate 106 Fixing tool 102 1st hinge 107 Protection material 103 Side plate 108, 109 Concavity and convexity engagement means 104 2nd hinge 111 3rd hinge

Claims

A. A rectangular top plate,
B. A first hinge mounted in a posture having a pivot axis along the short side of the top plate;
C. The first hinge is attached to both ends of the top plate so as to be able to rotate in a posture orthogonal to the posture parallel to the plate surface of the top plate, and in a posture rotated in a direction perpendicular to the top plate, the legs of the desk A pair of side plates that act as
D. A second hinge mounted in a posture having a pivot axis along one long side of the top plate in a direction parallel to the long side;
E. It has a dimension approximately equal to the dimension of the top plate in the longitudinal direction, and is rotated from a posture parallel to the top surface of the top plate by the second hinge in a direction perpendicular to the plate surface of the top plate. A reinforcing plate that is interposed between the plate surfaces of the pair of side plates that are in a standing posture in this turning posture and reinforces the standing posture of the side plate;
F. The hook is moved by rotating the lever, a clamping force is generated between the claw engaged with the hook and the pivot of the lever, and the clamping force is rotated by the reinforcing plate. A pair of fixtures that apply to each of the free end and the pair of side plates to fix the standing posture of the side plates;
The folding desk is constructed by attaching the hook to the reinforcing plate and attaching the claw to the side of the side plate .

The folding table according to claim 1, wherein the reinforcing plate and the top plate are cut at a substantially central position in the longitudinal direction and divided into two, and the dividing lines of the two divided reinforcing plates are joined with a hinge to connect the top plate and A folding desk having a configuration in which the longitudinal dimension of the reinforcing plate can be folded to a half dimension.