JP2011092251A

JP2011092251A - Furniture with top plate

Info

Publication number: JP2011092251A
Application number: JP2009246368A
Authority: JP
Inventors: Alexander Harford; アレキザンダーハーフォード; 裕一郎 ▲高▼木; Yuichiro Takagi
Original assignee: Okamura Corp
Current assignee: Okamura Corp
Priority date: 2009-10-27
Filing date: 2009-10-27
Publication date: 2011-05-12

Abstract

<P>PROBLEM TO BE SOLVED: To provide furniture with a top plate which prevents position fixing means from obstructing a top plate turning operation and smoothly performing the top plate turning operation, in the furniture with the top plate which is provided with the position fixing means for fixing the top plate to a leg body so as not to be turned. <P>SOLUTION: In the furniture with the top plate which is made turnable between the use position at which the top plate 2 is roughly horizontal and the non-use position at which the top plate 2 is turned upwards by pivoting one end side of the top plate 2 to a pivot 11 and further includes the position fixing means 14 and 15 for fixing the top plate 2 to the leg body so as not to be turned when the top plate 2 is at the use position, the position fixing means 14 and 15 include: an engaging member 15 provided on the side of the top plate 2 and engaged with the leg body by being moved when the top plate 2 is at the use position; and holding means 31 provided on the side of the top plate 2, for immovably holding the engaging member 15 when the engaging member 15 is not engaged with the leg body. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

本発明は、前後方向にスタッキングが可能な机等の天板付き家具に関する。 The present invention relates to furniture with a top plate such as a desk that can be stacked in the front-rear direction.

従来、前後方向にスタッキングが可能な机（天板付き家具）として、左右の脚部（脚体）の上端に設けられた支持杆（枢軸）に、天板の後部が上下回動可能に枢着され、天板の下面に前後方向に取り付けられた案内部材のガイド溝を、脚部の天板枢着部よりも下方位置で回動可能に設けられたステーの先端部が移動されるようになっているものがあり、ステーがガイド溝の前方係合部に係合すると、天板が水平状態（使用位置）に保持されるとともに、天板の前部が跳ね上げられた立起状態（不使用位置）では、ステーがガイド溝を移動して後方係合部に係合し、天板が保持されるようになっている（例えば、特許文献１参照）。 Conventionally, as a desk (furniture with a top plate) that can be stacked in the front-rear direction, the rear part of the top plate can be pivoted up and down on a support rod (pivot) provided at the upper ends of the left and right legs (legs). The guide tip of the guide member attached to the lower surface of the top plate in the front-rear direction is moved so that the tip of the stay provided so as to be rotatable at a position below the top plate pivoting portion of the leg portion is moved. When the stay engages with the front engagement part of the guide groove, the top plate is held in a horizontal state (use position) and the front part of the top plate is flipped up In the (non-use position), the stay moves in the guide groove and engages with the rear engagement portion, so that the top plate is held (see, for example, Patent Document 1).

また、天板を折り畳みできるテーブル（天板付き家具）には、天板の下面に取り付けられたブラケットの係止突部（位置固定手段）が、脚体の上部に設けられた閉塞板の係合孔に係合されることで、使用位置で天板の回動をロックするロック状態が維持され、レバー部材を引くと、係止突部（位置固定手段）が係合孔から外れて天板がロック状態から解放されるものがある（例えば、特許文献２参照）。 In addition, on a table (furniture with a top plate) that can fold the top plate, a locking projection (position fixing means) of a bracket attached to the lower surface of the top plate is associated with a closing plate provided on the upper part of the leg. By engaging with the joint hole, the locked state that locks the rotation of the top plate at the use position is maintained, and when the lever member is pulled, the locking projection (position fixing means) is released from the engagement hole and the top Some plates are released from the locked state (see, for example, Patent Document 2).

特許第３５９１４５２号公報（第３頁、第２図）Japanese Patent No. 3591552 (page 3, FIG. 2) 特開２００７−３０６９８７号公報（第６，７頁、第８図）Japanese Unexamined Patent Publication No. 2007-306987 (pages 6, 7 and 8)

しかしながら、特許文献１に記載の水平スタッキングテーブル（天板付き家具）にあっては、天板を水平状態（使用位置）から立起状態（不使用位置）に回動させる際に、ステーに設けられたレバーを引くことで、ステーの先端部（位置固定手段）を前方係合部から外し、天板を回動させることができるが、天板の回動の途中で手を離した際に、天板が使用位置に戻るとステーの先端部が前方係合部に戻ってしまい、天板を回動させるためには、再度レバーを引かなければならないため、操作が面倒であるという問題がある。 However, in the horizontal stacking table (furniture with a top plate) described in Patent Document 1, when the top plate is rotated from the horizontal state (use position) to the standing state (non-use position), it is provided on the stay. By pulling the lever, the tip of the stay (position fixing means) can be removed from the front engagement part, and the top plate can be rotated, but when the hand is released during the rotation of the top plate When the top plate returns to the use position, the tip of the stay returns to the front engagement portion, and in order to rotate the top plate, the lever must be pulled again. is there.

また、特許文献２に記載の折り畳みテーブル（天板付き家具）にあっては、レバー部材には、係止突部（位置固定手段）を内向きに付勢するバネ部材が設けられているため、天板の回動操作中にレバー部材から手を離してしまうと、バネ部材によって係止突部が内方向に移動して閉塞板に当接してしまい、この当接による摩擦抵抗が生じて天板の回動操作をスムーズに行えなくなるという問題がある。 Moreover, in the folding table (furniture with a top plate) of patent document 2, since the lever member is provided with the spring member which urges | biases a latching protrusion (position fixing means) inward. If the hand is released from the lever member during the pivoting operation of the top plate, the locking projection is moved inward by the spring member and comes into contact with the closing plate, resulting in frictional resistance due to this contact. There is a problem that the top plate cannot be smoothly rotated.

本発明は、このような問題点に着目してなされたもので、天板を脚体に対して回動不能に固定する位置固定手段を備える天板付き家具において、位置固定手段が天板の回動操作を妨げることを防止でき、天板の回動操作をスムーズに行うことができる天板付き家具を提供することを目的とする。 The present invention has been made paying attention to such a problem, and in the furniture with a top plate including a position fixing unit for fixing the top plate to the leg so as not to rotate, the position fixing unit is the top plate. An object of the present invention is to provide a furniture with a top plate that can prevent the rotation operation from being hindered and can smoothly rotate the top plate.

前記課題を解決するために、本発明の天板付き家具は、
天板と、該天板を支持する脚体と、を備え、前記脚体の前後いずれか一方の端部に左右方向を向く枢軸が設けられ、該枢軸に前記天板の一端側を枢着し、該天板が略水平をなす使用位置と該天板が上方に回動された不使用位置との間で回動可能となっており、前記天板が使用位置にあるときに、前記天板を前記脚体に対して回動不能に固定する位置固定手段をさらに備える天板付き家具において、
前記位置固定手段は、前記天板側に設けられて該天板が使用位置にあるときに可動されることで前記脚体に係合される係合部材と、前記天板側に設けられて該係合部材が前記脚体に対して非係合状態であるときに該係合部材を可動不能に保持する保持手段と、を有することを特徴としている。
この特徴によれば、天板を使用位置から不使用位置に回動させる際に、脚体に対して非係合状態の係合部材が保持手段によって保持されるため、使用者が係合部材から手を離しても係合部材は可動不能となっており、一旦、脚体から外した係合部材が不用意に脚体に係合されることがなく、位置固定手段が天板の回動操作を妨げることを防止でき、天板の回動操作をスムーズに行うことができる。 In order to solve the above-mentioned problem, the furniture with a top plate of the present invention,
A top plate and a leg that supports the top plate, and a pivot that faces in the left-right direction is provided at one of the front and rear ends of the leg, and one end of the top plate is pivotally attached to the pivot When the top plate is in the use position, the top plate can be rotated between a use position in which the top plate is substantially horizontal and a non-use position in which the top plate is rotated upward. In the furniture with a top plate further comprising position fixing means for fixing the top plate to the legs so as not to rotate,
The position fixing means is provided on the top plate side, and is provided on the top plate side with an engaging member that is engaged with the leg body by being moved when the top plate is in a use position. Holding means for holding the engaging member so as not to be movable when the engaging member is in a non-engaged state with respect to the leg.
According to this feature, when the top plate is rotated from the use position to the non-use position, the engagement member that is in a non-engagement state with respect to the leg is held by the holding means. Even if the hand is released, the engaging member is not movable, and the engaging member once removed from the leg is not inadvertently engaged with the leg, and the position fixing means is rotated by the top plate. It is possible to prevent the moving operation from being obstructed, and the top plate can be smoothly rotated.

本発明の天板付き家具は、
前記脚体は、複数の上下方向に延びる脚柱と、該脚柱同士を連結する水平杆と、を有し、前記係合部材が前記水平杆の下面に係合されることを特徴としている。
この特徴によれば、脚柱同士を連結する強度を有する水平杆を利用して、脚体に係合部材が係合される部位を設けることができ、天板付き家具を構成する部品点数を低減させて製造コストを低減できるばかりか、係合部材が係合される脚体の部位の耐久性が向上される。 The furniture with a top plate of the present invention,
The leg body includes a plurality of leg columns extending in the vertical direction and a horizontal rod connecting the leg columns, and the engaging member is engaged with a lower surface of the horizontal rod. .
According to this feature, it is possible to provide a portion where the engaging member is engaged with the leg using the horizontal rod having the strength to connect the pedestals, and the number of parts constituting the furniture with the top plate can be reduced. Not only can the manufacturing cost be reduced, the durability of the leg portion with which the engaging member is engaged is improved.

本発明の天板付き家具は、
前記位置固定手段は、前記天板に固着されて前記係合部材を支持する支持部材を有し、前記保持手段が該支持部材に形成された保持部となっており、前記非係合状態で前記係合部材が前記保持部に保持されることを特徴としている。
この特徴によれば、係合部材が支持部材の保持部に係合されて、係合部材と脚体との非係合状態を維持できるようになり、位置固定手段を天板に固着する支持部材を利用し、かつ支持部材の一部に形成された保持部という簡素な構成で保持手段を設けることができる。 The furniture with a top plate of the present invention,
The position fixing means includes a support member that is fixed to the top plate and supports the engagement member, and the holding means is a holding portion formed on the support member, and is in the non-engaged state. The engaging member is held by the holding portion.
According to this feature, the engagement member is engaged with the holding portion of the support member, so that the disengagement state between the engagement member and the leg can be maintained, and the position fixing means is fixed to the top plate. The holding means can be provided with a simple configuration using a member and a holding portion formed in a part of the support member.

本発明の天板付き家具は、
前記係合部材は、前記支持部材に枢支されて回動動作により前記脚体に係合されるようになっており、該係合部材には、前記回動動作により前記保持部に保持される被保持部が形成されることを特徴としている。
この特徴によれば、係合部材は支持部材の枢着点を中心に回動され、係合部材の可動範囲を小さく構成した位置固定手段にできるばかりか、係合部材を回動させて脚体から外す動作とともに、係合部材の被保持部を枢支部材の保持部に係合でき、かつ係合部材を回動させて脚体に係合させる動作とともに、係合部材の被保持部を支持部材の保持部から外すことができる。 The furniture with a top plate of the present invention,
The engaging member is pivotally supported by the support member and is engaged with the leg body by a rotating operation, and the engaging member is held by the holding portion by the rotating operation. A held portion is formed.
According to this feature, the engaging member is rotated around the pivot point of the support member, and can be a position fixing means configured to reduce the movable range of the engaging member. Along with the operation of removing from the body, the held portion of the engaging member can be engaged with the holding portion of the pivotal support member, and the engaging member is rotated and engaged with the leg body, and the held portion of the engaging member Can be removed from the holding portion of the support member.

本発明の天板付き家具は、
前記係合部材は、前記保持部に係合されたときに前記天板の下面に接触する接触部が形成されることを特徴としている。
この特徴によれば、係合部材が天板の下面と支持部材の保持部との間に挟まるようになり、係合部材を非係合状態でより強固に保持することができる。 The furniture with a top plate of the present invention,
The engaging member is characterized in that a contact portion that contacts a lower surface of the top plate when engaged with the holding portion is formed.
According to this feature, the engagement member is sandwiched between the lower surface of the top plate and the holding portion of the support member, and the engagement member can be more firmly held in the non-engaged state.

本発明の天板付き家具は、
前記係合部材及び前記支持部材のうち、少なくともいずれか一方は、弾性を有する材質で形成されることを特徴としている。
この特徴によれば、係合部材が保持部に保持される際に、係合部材を保持部に容易に係脱させることができる。 The furniture with a top plate of the present invention,
At least one of the engagement member and the support member is formed of an elastic material.
According to this feature, when the engaging member is held by the holding portion, the engaging member can be easily engaged and disengaged with the holding portion.

実施例１における机を示す背面図である。It is a rear view which shows the desk in Example 1. FIG. 机を示す側面図である。It is a side view which shows a desk. 机の内部構造を示す平面図である。It is a top view which shows the internal structure of a desk. 天板が使用位置にあるときの机を示す正面図である。It is a front view which shows a desk when a top plate exists in a use position. 天板が不使用位置にあるときの机を示す正面図である。It is a front view which shows a desk when a top plate exists in a non-use position. 天板が使用位置にあるときの机を示す縦断側面図である。It is a vertical side view which shows a desk when a top plate exists in a use position. 天板の回動中の机を示す縦断側面図である。It is a vertical side view which shows the desk in which the top plate is rotating. 枢着軸が仮想線上にあるときの机を示す縦断側面図である。It is a vertical side view which shows a desk when a pivot axis is on a virtual line. 天板が不使用位置にあるときの机を示す縦断側面図である。It is a vertical side view which shows a desk when a top plate exists in a non-use position. 枢支部材を示す斜視図である。It is a perspective view which shows a pivot member. ロック部材を示す斜視図である。It is a perspective view which shows a locking member. ロック部材が脚体に係合された係合状態を示す図３におけるＡ−Ａ断面図である。It is AA sectional drawing in FIG. 3 which shows the engagement state with which the locking member was engaged with the leg. ロック部材が脚体から外れた非係合状態を示す断面図である。It is sectional drawing which shows the non-engagement state from which the lock member removed from the leg. 実施例２におけるロック部材が脚体に係合された係合状態を示す断面図である。It is sectional drawing which shows the engagement state in which the locking member in Example 2 was engaged with the leg body. 実施例３における係合部材が脚体に係合された係合状態を示す断面図である。It is sectional drawing which shows the engagement state in which the engaging member in Example 3 was engaged with the leg.

本発明に係る天板付き家具を実施するための形態を実施例に基づいて以下に説明する。 EMBODIMENT OF THE INVENTION The form for implementing the furniture with a top plate which concerns on this invention is demonstrated below based on an Example.

実施例１に係る天板付き家具としての机につき、図１から図１３を参照して説明する。以下、図２及び図６から図９の紙面右側を机の正面側（前方側）とし、図３の紙面下側を机の正面側（前方側）として説明する。 A desk as furniture with a top plate according to the first embodiment will be described with reference to FIGS. 2 and 6 to 9 will be described as the front side (front side) of the desk, and the lower side of FIG. 3 will be described as the front side (front side) of the desk.

図１の符号１は、本発明の適用された天板付き家具としての机であり、学校の教室等で使用され、掃除の際などに、天板２を回動させて起立させることができる。そして、複数の机１を前後方向に重ねることにより、室内のスペースを有効に活用できるようになっている。机１には、左右一対の脚体３，３が設けられ、脚体３の上方には、略四角形状をなす天板２が設けられている。 Reference numeral 1 in FIG. 1 is a desk as a furniture with a top board to which the present invention is applied. The desk 1 is used in a classroom of a school or the like, and can be turned upright by rotating the top board 2 at the time of cleaning or the like. . And the indoor space can be used effectively by stacking a plurality of desks 1 in the front-rear direction. The desk 1 is provided with a pair of left and right legs 3, 3, and a top plate 2 having a substantially square shape is provided above the legs 3.

図２に示すように、パイプフレームで構成される脚体３は、側面視で矩形状に形成されており、垂直方向に延びる本発明における脚柱としての前脚４と後脚５と、前後方向に延びる脚体上端部６（水平杆）及び脚体下端部７からなる。左右の脚体３，３は、後方側よりも前方側の左右幅がひろがるように、平面視でハの字状に形成されている（図３参照）。尚、天板２の左右寸法は、脚体３の左右の最大寸法よりも若干大とされている。 As shown in FIG. 2, the leg body 3 formed of a pipe frame is formed in a rectangular shape in a side view, and includes a front leg 4 and a rear leg 5 as pedestals in the present invention extending in a vertical direction, and a front-rear direction. Leg upper end portion 6 (horizontal heel) and leg lower end portion 7 extending in the horizontal direction. The left and right legs 3, 3 are formed in a C shape in plan view so that the left-right width on the front side is wider than the rear side (see FIG. 3). The left and right dimensions of the top plate 2 are slightly larger than the left and right maximum dimensions of the leg 3.

左右の脚体上端部６，６の下方には、側板８及びフック９が設けられており、フック９は、側板８の下端部から外向きに突設され、フック９の下端は側板８に固着されている。机１の使用者は、このフック９に荷物等を掛けられるようになっている。また、脚体上端部６の前方上部には、脚体上端部６の径より若干小さい左右幅を有する固定板１０が固着されている（図５参照）。 Side plates 8 and hooks 9 are provided below the left and right leg upper end portions 6, 6. The hooks 9 project outward from the lower ends of the side plates 8, and the lower ends of the hooks 9 are connected to the side plates 8. It is fixed. A user of the desk 1 can hang luggage or the like on the hook 9. Further, a fixing plate 10 having a lateral width slightly smaller than the diameter of the leg upper end portion 6 is fixed to the front upper portion of the leg upper end portion 6 (see FIG. 5).

図２及び図３に示すように、左右の脚体上端部６の後部には、左右内向きに枢着軸１１を有する天板支持部材１２が取り付けられており、枢着軸１１を枢軸として、天板２の後端部の下面に取り付けられた天板枢支部材１３が枢着されている。この天板枢支部材１３により、天板２は、回動可能となっており、後上方に向かって持ち上げることができる。 As shown in FIGS. 2 and 3, a top plate support member 12 having a pivot shaft 11 is attached to the rear of the left and right leg upper end portions 6 inwardly in the lateral direction, and the pivot shaft 11 serves as a pivot. The top plate pivoting member 13 attached to the lower surface of the rear end portion of the top plate 2 is pivotally attached. The top plate 2 is rotatable by the top plate pivot member 13 and can be lifted rearward and upward.

天板２の下面の前端部には、後述する左右一対のリンクバー枢支部材１４（位置固定手段，支持部材）及びロック部材１５（位置固定手段，係合部材）が取り付けられており、ロック部材１５が脚体上端部６に係合することで、天板２が水平状態となる使用位置で回動不能に保持されるようになっている（図４参照）。尚、本実施例では、天板２が回動されて起立した状態となる位置を不使用位置とする（図５参照）。更に尚、天板２が不使用位置にあるときの傾斜角は任意であり、例えば、天板２が脚体３から離れて少しでも傾いている状態の傾斜角も含むし、天板２が垂直に近い状態の傾斜角も含む。 A pair of left and right link bar pivot members 14 (position fixing means, support member) and a lock member 15 (position fixing means, engagement member), which will be described later, are attached to the front end portion of the lower surface of the top plate 2. When the member 15 engages with the leg upper end portion 6, the top plate 2 is held in a non-rotatable position at a use position where the top plate 2 is in a horizontal state (see FIG. 4). In the present embodiment, the position where the top plate 2 is rotated and stood is defined as the non-use position (see FIG. 5). Furthermore, the tilt angle when the top plate 2 is in the non-use position is arbitrary. For example, the tilt angle includes a tilt angle in a state where the top plate 2 is tilted away from the leg 3, and the top plate 2 is The tilt angle in a state close to vertical is also included.

尚、天板枢支部材１３は、天板２の下面の後端部に限らず、天板２の下面の後端寄りの部位に取り付けられていればよい。また、リンクバー枢支部材１４は、天板２の下面の前端部に限らず、天板２の下面の前端寄りの部位に取り付けられていればよい。 The top plate pivoting member 13 is not limited to the rear end portion of the lower surface of the top plate 2 but may be attached to a portion near the rear end of the lower surface of the top plate 2. Further, the link bar pivot member 14 is not limited to the front end portion of the lower surface of the top plate 2, but may be attached to a portion near the front end of the lower surface of the top plate 2.

図２に示すように、天板２の下方には、物品を収納できる左右広幅の棚板１６が設けられている。棚板１６は、本発明における第１リンク部材となっており、棚板１６の前端部１７は、下方に向かって曲折する形状をなし、本発明における把持部となっている（図３，図６参照）。 As shown in FIG. 2, below the top plate 2, a left and right wide shelf plate 16 that can store articles is provided. The shelf board 16 is a first link member in the present invention, and the front end portion 17 of the shelf board 16 is bent downward and serves as a gripping section in the present invention (FIGS. 3 and 3). 6).

棚板１６は、後脚５の上部に設けられた、左右内向きに枢着軸１８を有する棚板支持部材１９によって支持され、この枢着軸１８を枢軸として、棚板１６の後端部が枢着されている。これにより棚板１６は、回動可能となっており、天板２とともに後上方に向かって持ち上げることができる。 The shelf board 16 is supported by a shelf board support member 19 provided on the upper part of the rear leg 5 and having a pivoting shaft 18 inwardly in the left-right direction, and the rear end portion of the shelf board 16 with the pivoting shaft 18 as a pivot. Is pivotally attached. Thereby, the shelf board 16 can be rotated and can be lifted rearward and upward together with the top board 2.

尚、枢着軸１１には、天板２を後上方、即ち不使用位置に向かって回動付勢するバネ等で構成された付勢部材２０（付勢手段）が設けられているとともに、枢着軸１８にも、棚板１６が後上方に向かって回動付勢するバネ等で構成された付勢部材２１が設けられている。 The pivot shaft 11 is provided with an urging member 20 (urging means) composed of a spring or the like that urges the top plate 2 to rotate rearwardly, that is, toward the non-use position. The pivot shaft 18 is also provided with an urging member 21 formed of a spring or the like that urges the shelf plate 16 to rotate rearward and upward.

図３に示すように、棚板１６の前端部１７（遊端部）とリンクバー枢支部材１４は、平面視で略Ｚ字状をなす本発明における第２リンク部材としてのリンクバー２２を介して連結されている。リンクバー２２は、内方を向く内側の枢着軸２３を枢軸として、棚板１６の前端部１７に枢着され、外方を向く外側の枢着軸２４を枢軸として、リンクバー枢支部材１４に枢着されている。 As shown in FIG. 3, the front end portion 17 (free end portion) of the shelf board 16 and the link bar pivot support member 14 form a link bar 22 as a second link member in the present invention having a substantially Z shape in plan view. Are connected through. The link bar 22 is pivotally attached to the front end portion 17 of the shelf 16 with the inner pivot shaft 23 facing inward as the pivot, and the link bar pivot member with the outer pivot shaft 24 facing outward as the pivot. 14 is pivotally attached.

尚、枢着軸１１，１８，２３，２４を角部とする平行四節リンクが構成される（図６参照）。更に尚、リンクバー２２の中央部２５は、側面視で前方側に膨出するように一部が屈曲されている（図６参照）。 A parallel four-bar link having corners of the pivot shafts 11, 18, 23, and 24 is configured (see FIG. 6). Furthermore, the central portion 25 of the link bar 22 is partially bent so as to bulge forward in a side view (see FIG. 6).

リンクバー２２における外側の枢着軸２４は、リンクバー枢支部材１４に対して回動可能となっており、リンクバー２２における内側の枢着軸２３及び棚板１６の前端部１７は、互いに回動可能となっている。また、天板２が使用位置にある場合には、リンクバー２２によって棚板１６の水平状態が保たれている（図２参照）。 The outer pivot shaft 24 of the link bar 22 is rotatable with respect to the link bar pivot member 14, and the inner pivot shaft 23 of the link bar 22 and the front end portion 17 of the shelf 16 are mutually connected. It can be turned. Moreover, when the top plate 2 is in the use position, the horizontal state of the shelf plate 16 is maintained by the link bar 22 (see FIG. 2).

尚、机１の後方側には、左右の後脚５，５の間に幕板２６が取り付けられている。また、この幕板２６と左右の側板８によって、棚板１６の取付部が後方側から見え難くなっているとともに、棚板１６に載置した物品等が後方側から落下し難くなっている（図１参照）。 A curtain plate 26 is attached to the rear side of the desk 1 between the left and right rear legs 5 and 5. Further, the curtain plate 26 and the left and right side plates 8 make it difficult for the mounting portion of the shelf plate 16 to be seen from the rear side, and the articles placed on the shelf plate 16 are less likely to fall from the rear side ( (See FIG. 1).

次に、リンクバー枢支部材１４とロック部材１５について説明する。リンクバー枢支部材１４は金属等の材質により形成されるとともに、ロック部材１５は弾性を有する合成樹脂等の材質により形成されている。尚、左右のロック部材１５は同一形状をなしており、左右のリンクバー枢支部材１４は左右対称であるため、左側のリンクバー枢支部材１４について説明し、右側のリンクバー枢支部材１４については省略する。 Next, the link bar pivot member 14 and the lock member 15 will be described. The link bar pivot member 14 is formed of a material such as metal, and the lock member 15 is formed of a material such as a synthetic resin having elasticity. Since the left and right lock members 15 have the same shape, and the left and right link bar pivot members 14 are symmetrical, the left link bar pivot member 14 will be described, and the right link bar pivot member 14 will be described. Is omitted.

図３に示すように、リンクバー枢支部材１４は、平面視において内側の部位が外側の部位よりも前後幅が大きく形成されて略Ｌ字状をなしている。リンクバー枢支部材１４の内側の部位には、ネジ孔２７が前後に２つ形成され、左部には、ネジ孔２７が１つ形成されており、これらのネジ孔２７に下方からネジ２８が挿通され、天板２の下面に固定されている。 As shown in FIG. 3, the link bar pivot member 14 has a substantially L shape in which the inner portion is formed to have a larger front-rear width than the outer portion in plan view. Two screw holes 27 are formed on the inner side of the link bar pivotal support member 14 in the front-rear direction, and one screw hole 27 is formed on the left side. Is inserted and fixed to the lower surface of the top plate 2.

図１０に示すように、リンクバー枢支部材１４の外側の部位の下面には、底面視で矩形状をなす嵌合部２９と、その嵌合部２９の前後縁部に形成されて湾曲された湾曲部４８が形成されている。湾曲部４８は脚体上端部６の上面の形状と合うようになっている。 As shown in FIG. 10, the lower surface of the outer portion of the link bar pivot support member 14 is formed with a fitting portion 29 having a rectangular shape in a bottom view, and is formed and curved at the front and rear edges of the fitting portion 29. A curved portion 48 is formed. The curved portion 48 matches the shape of the upper surface of the leg upper end portion 6.

また、リンクバー枢支部材１４の外側の部位の前面と後面には、挿通孔３０が形成されており、リンクバー枢支部材１４の側部には、前後方向に延びる本発明における保持手段及び保持部としての突起部３１が形成されている。リンクバー枢支部材１４の右部には、リンクバー２２における外側の枢着軸２４が挿入される係合孔３２が形成されている。 Further, through holes 30 are formed in the front surface and the rear surface of the outer portion of the link bar pivot member 14, and the holding means in the present invention extending in the front-rear direction is formed on the side portion of the link bar pivot member 14. A protruding portion 31 is formed as a holding portion. An engagement hole 32 into which the outer pivot shaft 24 of the link bar 22 is inserted is formed in the right part of the link bar pivot member 14.

図１１に示すように、ロック部材１５は、上下方向の基片３３と、基片３３の上部両端に設けられた内向きの枢支片３４，３４と、基片３３の内側に設けられた係合片３５と、を有している。尚、係合片３５は、脚体上端部６の下面の形状と合うように湾曲された形状をなし、脚体上端部６と係合する係合面３６となっている。 As shown in FIG. 11, the lock member 15 is provided on the inner side of the base piece 33 in the vertical direction, the inwardly pivoting pieces 34 and 34 provided at both upper ends of the base piece 33, and the base piece 33. Engaging piece 35. The engaging piece 35 has a curved shape so as to match the shape of the lower surface of the leg upper end portion 6 and is an engaging surface 36 that engages with the leg upper end portion 6.

また、基片３３の内側上部には、リンクバー枢支部材１４の突起部３１が係合する被係合部３７（被保持部）が形成されており、枢支片３４には、後述する枢支ボルト３８が挿通される挿通孔３９がそれぞれ形成されている。 Further, an engaged portion 37 (held portion) with which the protrusion 31 of the link bar pivot member 14 is engaged is formed on the inner upper portion of the base piece 33, and the pivot piece 34 will be described later. An insertion hole 39 through which the pivot bolt 38 is inserted is formed.

図１０に示すリンクバー枢支部材１４と、図１１に示すロック部材１５と、を組み合わせて、リンクバー枢支部材１４の挿通孔３０と、ロック部材１５の挿通孔３９とを合わせて、その外側から枢支ボルト３８，３８を挿通し、リンクバー枢支部材１４とロック部材１５とを枢着させる（図２，図３参照）。 The link bar pivot member 14 shown in FIG. 10 and the lock member 15 shown in FIG. 11 are combined, and the insertion hole 30 of the link bar pivot member 14 and the insertion hole 39 of the lock member 15 are combined. The pivot bolts 38, 38 are inserted from the outside, and the link bar pivot member 14 and the lock member 15 are pivoted (see FIGS. 2 and 3).

図１２に示すように、天板２が使用位置にある場合には、脚体上端部６に固着された固定板１０がリンクバー枢支部材１４の嵌合部２９と係合し、天板２が水平方向にがたつかないようになっている。更に、リンクバー枢支部材１４に枢着されたロック部材１５の係合面３６と脚体上端部６の下面とが係合されて係合状態となるとともに、係合片３５は側板８に形成されたスリット孔４０に挿通され、天板２が使用位置において回動不能に保持されている。 As shown in FIG. 12, when the top plate 2 is in the use position, the fixing plate 10 fixed to the leg upper end portion 6 engages with the fitting portion 29 of the link bar pivot member 14, and the top plate 2 does not rattle horizontally. Further, the engagement surface 36 of the lock member 15 pivotally attached to the link bar pivot support member 14 is engaged with the lower surface of the upper end portion 6 of the leg body, and the engagement piece 35 is attached to the side plate 8. It is inserted through the formed slit hole 40, and the top plate 2 is held so as not to rotate at the use position.

次に、天板２が使用位置から不使用位置に回動される動作について、図６から図９を参照して説明する。図６は、図４の縦断左側面図であり、図９は、図５の縦断左側面図となっている。 Next, an operation of rotating the top board 2 from the use position to the non-use position will be described with reference to FIGS. 6 is a vertical left side view of FIG. 4, and FIG. 9 is a vertical left side view of FIG.

図６において、天板２は使用位置にあり、棚板１６とともに水平に保持されている。使用者がロック部材１５の基片３３の下端部を外方向に引き上げると、係合片３５がスリット孔４０から抜けて非係合状態となるとともに、基片３３の上端部がリンクバー枢支部材１４の突起部３１を乗り越え、ロック部材１５の被係合部３７が突起部３１に係合する（図１３参照）。 In FIG. 6, the top plate 2 is in the use position and is held horizontally together with the shelf plate 16. When the user pulls the lower end portion of the base piece 33 of the lock member 15 outward, the engagement piece 35 comes out of the slit hole 40 and is in a non-engaged state, and the upper end portion of the base piece 33 is the link bar pivot portion. The protruding portion 31 of the material 14 is overcome, and the engaged portion 37 of the lock member 15 is engaged with the protruding portion 31 (see FIG. 13).

天板２と脚体３とのロックが解除され、天板２は回動可能な状態となる。また、ロック部材１５の被係合部３７がリンクバー枢支部材１４の突起部３１に係合しているため、ロック部材１５が上方に引き上げられたまま保持され、使用者がロック部材１５から手を離しても、ロック部材１５が下方に戻って回動操作を妨げることがなく、回動操作し易くなっている。 The top plate 2 and the leg 3 are unlocked, and the top plate 2 is in a rotatable state. Further, since the engaged portion 37 of the lock member 15 is engaged with the protruding portion 31 of the link bar pivot member 14, the lock member 15 is held while being pulled upward, and the user can remove the lock member 15 from the lock member 15. Even if the hand is released, the lock member 15 returns downward and does not hinder the rotation operation, and the rotation operation is easy.

そして、図７に示すように、天板２が後上方に押し上げられると、リンクバー２２によって連結されている棚板１６が天板２とともに後上方に回動する。尚、付勢部材２０，２１が設けられているため、天板２及び棚板１６の荷重による使用者の負荷が軽減されるようになっている。 Then, as shown in FIG. 7, when the top plate 2 is pushed rearward and upward, the shelf plate 16 connected by the link bar 22 rotates rearward and upward together with the top plate 2. In addition, since the urging members 20 and 21 are provided, the load on the user due to the loads on the top plate 2 and the shelf plate 16 is reduced.

また、天板２が不使用位置に移動されるまでの途中の揺動状態では、棚板１６が後脚５に枢着される枢着軸１８（枢着点）と、リンクバー２２における外側の枢着軸２４がリンクバー枢支部材１４に枢着される枢着軸２４（枢着点）を結ぶ仮想線Ｖよりも、棚板１６に枢着されたリンクバー２２における内側の枢着軸２３が下方に位置している。 Further, in the swinging state halfway until the top plate 2 is moved to the non-use position, the pivot shaft 18 (the pivot point) on which the shelf plate 16 is pivotally attached to the rear leg 5 and the outer side of the link bar 22 Of the link bar 22 pivotally attached to the shelf plate 16 with respect to the phantom line V connecting the pivot attachment shaft 24 (the pivot attachment point) where the pivot attachment shaft 24 is pivotally attached to the link bar pivot member 14. The shaft 23 is positioned below.

図８に示すように、更に天板２が後上方に押し上げられると、仮想線Ｖに枢着軸２３が配置される。天板２と脚体３と棚板１６とリンクバー２２とにより、枢着軸１１，１８，２３，２４を角部とする非平行四節リンクが構成され、枢着軸２３が仮想線Ｖに配置された状態が非平行四節リンクの死点となっている。 As shown in FIG. 8, when the top plate 2 is further pushed up rearward, the pivot shaft 23 is disposed on the virtual line V. The top plate 2, the leg body 3, the shelf plate 16, and the link bar 22 form a non-parallel four-bar link having corners of the pivot shafts 11, 18, 23, and 24, and the pivot shaft 23 is an imaginary line V This is the dead center of the non-parallel four-bar link.

そして、天板２が不使用位置になると、図９に示すように、この仮想線Ｖよりも、枢着軸２３が上方位置に移動される。この不使用位置において、天板２の上方から荷重が加えられた場合には、枢着軸２３は天板２側に向かって移動される力が働くため、天板２は不使用位置のまま保持される。 When the top plate 2 is in the non-use position, the pivot shaft 23 is moved to an upper position with respect to the virtual line V as shown in FIG. In this non-use position, when a load is applied from above the top plate 2, the pivot shaft 23 is subjected to a force that moves toward the top plate 2, so the top plate 2 remains in the non-use position. Retained.

尚、リンクバー２２における中央部２５は、前方側に膨出するように屈曲されているため、天板２の不使用位置にあるときに隙間部４１が形成される。これにより、使用者が天板２の左右側部に手を掛けて天板２の回動操作をする際に、天板２とリンクバー２２との間に指が挟まれることを防止できる。 Since the central portion 25 of the link bar 22 is bent so as to bulge forward, a gap 41 is formed when the top plate 2 is at a non-use position. Accordingly, it is possible to prevent a finger from being sandwiched between the top plate 2 and the link bar 22 when the user puts his / her hand on the left and right side portions of the top plate 2 and performs the turning operation of the top plate 2.

このように、天板２を不使用位置にするとともに、左右の脚体３がハの字状に設けられているため、机１の前方側に向かって広がる空間ができる。そして、複数の机１に対して同様に回動操作を行うことで、一方の机１の前方側から他方の机１を前後方向にスタッキングできるようになる。 Thus, while making the top plate 2 into a non-use position, since the left and right legs 3 are provided in a C-shape, a space is created that widens toward the front side of the desk 1. Then, by similarly performing the rotation operation on the plurality of desks 1, the other desk 1 can be stacked in the front-rear direction from the front side of the one desk 1.

不使用位置から使用位置に回動させる際には、枢着軸２３を仮想線Ｖよりも下方に移動させる。本実施例では、棚板１６の前端部１７が下方に向かって曲折する形状をなす把持部となっているため、使用者は棚板１６の前端部１７に指を掛け、引き下げる操作を行うことで、枢着軸１１，１８，２３，２４を角部とする平行四節リンクが構成され、天板２を使用位置に簡単に戻せるようになっている。 When rotating from the non-use position to the use position, the pivot shaft 23 is moved below the virtual line V. In this embodiment, since the front end portion 17 of the shelf board 16 is a gripping portion that bends downward, the user can place a finger on the front end portion 17 of the shelf board 16 and pull it down. Thus, a parallel four-joint link having corners of the pivot shafts 11, 18, 23, and 24 is configured, and the top plate 2 can be easily returned to the use position.

そして、天板２と棚板１６が引き下げられると、天板２の下面のリンクバー枢支部材１４の嵌合部２９と脚体上端部６の固定板１０とが係合し、使用位置になるとともに、天板２と棚板１６が水平になる。 When the top plate 2 and the shelf plate 16 are pulled down, the fitting portion 29 of the link bar pivotal support member 14 on the lower surface of the top plate 2 and the fixing plate 10 of the leg upper end portion 6 are engaged, so that the use position is reached. At the same time, the top plate 2 and the shelf plate 16 become horizontal.

また、ロック部材１５は、被係合部３７がリンクバー枢支部材１４の突起部３１に係合して上方に引き上げられたまま保持されており、天板２を引き下げて使用位置まで移動させた後に、このロック部材１５の基片３３の下端部を内方向に引き下げると、基片３３の上端部４２（接触部）が突起部３１を乗り越えて突起部３１から被係合部３７が離脱される。そして、係合片３５がスリット孔４０に挿通されることで、ロック部材１５が脚体上端部６に係合されて、天板２が使用位置で回動不能に保持される（図１２参照）。 The lock member 15 is held while the engaged portion 37 is engaged with the protrusion 31 of the link bar pivot member 14 and pulled upward, and the top plate 2 is lowered to move to the use position. After that, when the lower end portion of the base piece 33 of the lock member 15 is pulled inward, the upper end portion 42 (contact portion) of the base piece 33 gets over the projection portion 31, and the engaged portion 37 is detached from the projection portion 31. Is done. Then, when the engagement piece 35 is inserted into the slit hole 40, the lock member 15 is engaged with the upper end portion 6 of the leg body, and the top plate 2 is held unrotatable at the use position (see FIG. 12). ).

尚、棚板１６は、後脚５，５同士の間の左右幅と略同幅の横幅を有する矩形状をなしており、前脚４，４と棚板１６の前部との間に隙間が形成される。また、天板２は、天板支持部材１２及びリンクバー枢支部材１４の高さの分だけ、脚体上端部６よりも上方に位置しており、天板２と脚体上端部６との間に隙間が形成される。これらの隙間により、使用者が天板２に手を掛けて回動操作を行う際にも、棚板１６と脚体上端部６との間や、天板２と脚体上端部６との間に指が挟まれる虞がないようになっている。 The shelf board 16 has a rectangular shape having a lateral width substantially the same as the lateral width between the rear legs 5, 5, and there is a gap between the front legs 4, 4 and the front part of the shelf board 16. It is formed. Further, the top plate 2 is positioned above the leg upper end 6 by the height of the top support member 12 and the link bar pivot member 14, and the top plate 2, the leg upper end 6, A gap is formed between the two. Due to these gaps, even when the user puts his hand on the top plate 2 and performs a turning operation, the space between the shelf plate 16 and the leg upper end portion 6 or between the top plate 2 and the leg upper end portion 6. There is no risk of fingers being caught between them.

次に、実施例２に係る天板付き家具としての机につき、図１４を参照して説明する。前記実施例１に示される構成部分と同一構成部分に付いては同一符号を付して重複する説明を省略する。 Next, a desk as furniture with a top plate according to the second embodiment will be described with reference to FIG. The same components as those shown in the first embodiment are denoted by the same reference numerals, and redundant description is omitted.

図１４に示すように、使用者が荷物を掛けるためのフック９’は、ロック部材１５の基片３３の外側面に固着されている。これにより、フック９’を机１に別途取り付ける必要がなくなる。また、ロック部材１５の基片３３の形状を外側方に突出させる形状にして、荷物を掛けられるようにしてもよい。これにより、部材点数を低減させることができる。 As shown in FIG. 14, a hook 9 ′ for a user to hang a load is fixed to the outer surface of the base piece 33 of the lock member 15. This eliminates the need to separately attach the hook 9 'to the desk 1. Further, the shape of the base piece 33 of the lock member 15 may be formed so as to protrude outward so that luggage can be hung. Thereby, the number of members can be reduced.

次に、実施例３に係る天板付き家具としての机につき、図１５を参照して説明する。尚、前記実施例１に示される構成部分と同一構成部分に付いては同一符号を付して重複する説明を省略する。 Next, a desk as furniture with a top plate according to the third embodiment will be described with reference to FIG. Note that the same components as those shown in the first embodiment are denoted by the same reference numerals and redundant description is omitted.

図１５に示すように、リンクバー枢支部材１４’は、外側の部位が下方に延びる形状をなしており、リンクバー枢支部材１４’の内側の部位の下端には、スライド溝４３が形成され、このスライド溝４３には、脚体上端部６側にスライド移動可能なプレート状の係合部材４４が設けられている。係合部材４４の下部には、使用者が係合部材４４をスライド移動させるために操作する操作部４５が形成されている。尚、係合部材４４は、合成樹脂等の弾性を有する材質で形成されている。 As shown in FIG. 15, the link bar pivot member 14 ′ has a shape in which the outer portion extends downward, and a slide groove 43 is formed at the lower end of the inner portion of the link bar pivot member 14 ′. The slide groove 43 is provided with a plate-like engagement member 44 that is slidable on the leg upper end 6 side. An operation unit 45 that is operated by the user to slide the engagement member 44 is formed below the engagement member 44. The engaging member 44 is made of an elastic material such as synthetic resin.

スライド溝４３の内側上面には、下方に突出する半球状の凸部４６が形成されているとともに、係合部材４４の上面には、凸部４６と係合する凹部４７，４７が内側と外側に２箇所に形成されている。 A hemispherical convex portion 46 projecting downward is formed on the inner upper surface of the slide groove 43, and concave portions 47, 47 that engage with the convex portion 46 are formed on the inner and outer sides on the upper surface of the engaging member 44. Are formed in two places.

図１５に示すように、天板２は使用位置にあり、側板８のスリット孔４０に係合部材４４が挿設されることで、係合部材４４が脚体上端部６に係合され、天板２と脚体３が連結状態になっている。このとき、凸部４６と、外側の凹部４７とが係合しており、係合部材４４の係合状態が保持されている。 As shown in FIG. 15, the top plate 2 is in the use position, and the engaging member 44 is engaged with the leg upper end portion 6 by inserting the engaging member 44 into the slit hole 40 of the side plate 8, The top plate 2 and the leg 3 are connected. At this time, the convex portion 46 and the outer concave portion 47 are engaged, and the engagement state of the engagement member 44 is maintained.

係合部材４４の係合状態を解除するには、使用者が操作部４５を外側に引くことにより、係合部材４４の外側の凹部４７が凸部４６から外れて、係合部材４４とスリット孔４０との係合が解除される。そして、左側の凹部４７が凸部４６と係合することで、係合部材４４の非係合状態を保持することができるようになっている。 In order to release the engagement state of the engagement member 44, the user pulls the operation portion 45 outward, whereby the concave portion 47 on the outer side of the engagement member 44 is disengaged from the convex portion 46, and the engagement member 44 and the slit are separated. The engagement with the hole 40 is released. The left recess 47 is engaged with the protrusion 46 so that the disengaged state of the engagement member 44 can be maintained.

内側の凹部４７と凸部４６とが係合しているときには、係合部材４４の内端部は、脚体上端部６よりも外側まで移動されているため、天板２を回動させる際に、係合部材４４が回動操作を妨げないようになっている。 When the inner concave portion 47 and the convex portion 46 are engaged, the inner end portion of the engaging member 44 is moved to the outer side from the leg upper end portion 6, so that the top plate 2 is rotated. Further, the engaging member 44 does not hinder the rotation operation.

尚、リンクバー枢支部材１４’にスライド溝４３を形成して、係合部材４４をスライド移動させているが、リンクバー枢支部材１４’とは別体の部材を天板２に取り付け、係合部材４４をスライド移動させるようにしてもよい。 In addition, the slide groove 43 is formed in the link bar pivot member 14 ′, and the engaging member 44 is slid, but a member separate from the link bar pivot member 14 ′ is attached to the top plate 2, The engaging member 44 may be slid.

以上、本実施例における机１では、天板２側に設けられて天板２が使用位置にあるときに可動されることで脚体３に係合されるロック部材１５と、天板２側に設けられてロック部材１５が脚体３に対して非係合状態であるときにロック部材１５を可動不能に保持するリンクバー枢支部材１４の突起部３１と、を有することで、天板２を使用位置から不使用位置に回動させる際に、脚体３に対して非係合状態のロック部材１５が突起部３１によって保持されるため、使用者がロック部材１５から手を離してもロック部材１５は可動不能となっており、一旦、脚体３から外したロック部材１５が不用意に脚体３に係合されることがなく、ロック部材１５が天板２の回動操作を妨げることを防止でき、天板２の回動操作をスムーズに行うことができる。 As described above, in the desk 1 according to the present embodiment, the lock member 15 provided on the top plate 2 side and moved when the top plate 2 is in the use position to be engaged with the leg 3, and the top plate 2 side. And the protrusion 31 of the link bar pivot member 14 that holds the lock member 15 so as not to be movable when the lock member 15 is in a non-engaged state with respect to the leg 3. When the 2 is rotated from the use position to the non-use position, the lock member 15 in the non-engaged state with respect to the leg 3 is held by the projection 31, so that the user releases his / her hand from the lock member 15. The lock member 15 is not movable, and the lock member 15 once removed from the leg body 3 is not inadvertently engaged with the leg body 3, and the lock member 15 is operated to rotate the top plate 2. Can be prevented, and the top plate 2 can be rotated smoothly. .

また、脚体３は、複数の上下方向に延びる前脚４及び後脚５と、前脚４及び後脚５同士を連結する脚体上端部６と、を有し、ロック部材１５が脚体上端部６の下面に係合されることで、前脚４及び後脚５同士を連結する強度を有する脚体上端部６を利用して、脚体３にロック部材１５が係合される部位を設けることができ、机１を構成する部品点数を低減させて製造コストを低減できるばかりか、ロック部材１５が係合される脚体３の部位の耐久性が向上される。 The leg 3 has a plurality of front legs 4 and rear legs 5 extending in the vertical direction, and leg upper ends 6 that connect the front legs 4 and the rear legs 5, and a lock member 15 is an upper end of the legs. By engaging with the lower surface of 6, a portion where the lock member 15 is engaged with the leg 3 is provided by using the leg upper end 6 having the strength to connect the front leg 4 and the rear leg 5 together. Thus, not only can the number of parts constituting the desk 1 be reduced to reduce the manufacturing cost, but also the durability of the portion of the leg 3 to which the lock member 15 is engaged is improved.

また、天板２に固着されてロック部材１５（係合部材４４）を支持するリンクバー枢支部材１４（１４’）を有し、リンクバー枢支部材１４に形成された突起部３１（凸部４６）が設けられており、非係合状態でロック部材１５が突起部３１に保持されることで、ロック部材１５がリンクバー枢支部材１４の突起部３１に係合されて、ロック部材１５と脚体３との非係合状態を維持できるようになり、リンクバー枢支部材１４を利用し、かつリンクバー枢支部材１４の一部に形成された突起部３１という簡素な構成で保持手段を設けることができる。 Further, it has a link bar pivot member 14 (14 ′) that is fixed to the top plate 2 and supports the lock member 15 (engagement member 44), and has a protrusion 31 (protrusion) formed on the link bar pivot member 14. Portion 46) is provided, and the lock member 15 is held by the projection 31 in the disengaged state, whereby the lock member 15 is engaged with the projection 31 of the link bar pivot member 14, and the lock member 15 15 and the leg 3 can be maintained in a non-engaged state, using the link bar pivot member 14 and having a simple configuration of a protrusion 31 formed on a part of the link bar pivot member 14. Holding means can be provided.

また、ロック部材１５は、リンクバー枢支部材１４に枢支されて回動動作により脚体３に係合されるようになっており、ロック部材１５には、回動動作により突起部３１に保持される被係合部３７が形成されることで、ロック部材１５はリンクバー枢支部材１４の枢着点を中心に回動され、ロック部材１５の可動範囲を小さく構成できるばかりか、ロック部材１５を回動させて脚体３から外す動作とともに、ロック部材１５の被係合部３７をリンクバー枢支部材１４の突起部３１に係合でき、かつロック部材１５を回動させて脚体３に係合させる動作とともに、ロック部材１５の被係合部３７をリンクバー枢支部材１４の突起部３１から外すことができる。 Further, the lock member 15 is pivotally supported by the link bar pivot support member 14 and is engaged with the leg body 3 by a pivoting operation. By forming the engaged portion 37 to be held, the lock member 15 is rotated around the pivot point of the link bar pivot member 14, so that the movable range of the lock member 15 can be reduced, and the lock member 15 can be locked. Along with the operation of rotating the member 15 to remove it from the leg 3, the engaged portion 37 of the lock member 15 can be engaged with the protrusion 31 of the link bar pivot member 14, and the lock member 15 is rotated to rotate the leg. Along with the operation of engaging with the body 3, the engaged portion 37 of the lock member 15 can be detached from the protrusion 31 of the link bar pivot member 14.

また、ロック部材１５は、突起部３１に係合されたときに天板２の下面に接触する上端部４２が形成されることで、ロック部材１５が天板２の下面とリンクバー枢支部材１４の突起部３１との間に挟まるようになり、ロック部材１５を非係合状態でより強固に保持することができる。 Further, the lock member 15 is formed with an upper end portion 42 that comes into contact with the lower surface of the top plate 2 when engaged with the protruding portion 31, so that the lock member 15 is connected to the lower surface of the top plate 2 and the link bar pivot member. 14, the lock member 15 can be more firmly held in the non-engaged state.

また、ロック部材１５及びリンクバー枢支部材１４のうち、少なくともいずれか一方は、弾性を有する材質で形成されることで、ロック部材１５が突起部３１に保持される際に、ロック部材１５を突起部３１に容易に係脱させることができる。 In addition, at least one of the lock member 15 and the link bar pivot support member 14 is formed of an elastic material so that when the lock member 15 is held by the protruding portion 31, the lock member 15 is The protrusion 31 can be easily engaged and disengaged.

以上、本発明の実施例を図面により説明してきたが、具体的な構成はこれら実施例に限られるものではなく、本発明の要旨を逸脱しない範囲における変更や追加があっても本発明に含まれる。 Although the embodiments of the present invention have been described with reference to the drawings, the specific configuration is not limited to these embodiments, and modifications and additions within the scope of the present invention are included in the present invention. It is.

例えば、前記実施例では、天板２が後上方に回動されるようになっているが、枢着軸１１，１２を前方側に設け、かつ枢着軸２３，２４を後方側に設けることで、天板２が前上方に回動されるようにしてもよく、その場合には、天板２を前上方に回動させた際に、複数の机１を前後方向に積み重ねることができる。 For example, in the above embodiment, the top plate 2 is rotated rearward and upward, but the pivot shafts 11 and 12 are provided on the front side, and the pivot shafts 23 and 24 are provided on the rear side. Thus, the top plate 2 may be rotated forward and upward. In that case, when the top plate 2 is rotated forward and upward, a plurality of desks 1 can be stacked in the front-rear direction. .

また、前記実施例では、ロック部材１５は、合成樹脂等の材質で形成されているが、リンクバー枢支部材１４及びロック部材１５の両部材を合成樹脂等の材質で形成してもよい。
１机（天板付き家具）
２天板
３脚体
４前脚（脚柱）
５後脚（脚柱）
６脚体上端部（水平杆）
１１枢着軸（枢着点）
１２天板支持部材
１３天板枢支部材
１４，１４’ リンクバー枢支部材（位置固定手段，支持部材）
１５ロック部材（位置固定手段，係合部材）
１６棚板（第１リンク部材）
１７前端部（遊端部，把持部）
１８枢着軸（枢着点）
１９棚板支持部材
２０付勢部材（付勢手段）
２１付勢部材
２２リンクバー（第２リンク部材）
２３枢着軸（遊端部，枢着点）
２４枢着軸（枢着点）
３１突起部（保持手段，保持部）
３７被係合部（被保持部）
４１隙間部
４２上端部（接触部）
４４係合部材
４６凸部
４７凹部 Moreover, in the said Example, although the lock member 15 is formed with materials, such as a synthetic resin, you may form both members of the link bar pivot member 14 and the lock member 15 with materials, such as a synthetic resin.
1 desk (furniture with a top plate)
2 Top 3 Leg 4 Front leg (pillar)
5 Rear legs (pillars)
6 Leg upper end (horizontal rod)
11 Pivot axis (Pivot point)
12 Top plate support member 13 Top plate pivot member 14, 14 'Link bar pivot member (position fixing means, support member)
15 Locking member (position fixing means, engaging member)
16 Shelf (first link member)
17 Front end (free end, grip)
18 Pivot axis (Pivot point)
19 Shelf board support member 20 Energizing member (urging means)
21 Energizing member 22 Link bar (second link member)
23 Pivot axis (free end, pivot point)
24 Pivoting axis (Pivoting point)
31 Protrusion (holding means, holding part)
37 engaged part (held part)
41 Crevice part 42 Upper end part (contact part)
44 Engaging member 46 Convex part 47 Concave part

Claims

A top plate and a leg that supports the top plate, and a pivot that faces in the left-right direction is provided at one of the front and rear ends of the leg, and one end of the top plate is pivotally attached to the pivot When the top plate is in the use position, the top plate can be rotated between a use position in which the top plate is substantially horizontal and a non-use position in which the top plate is rotated upward. In the furniture with a top plate further comprising position fixing means for fixing the top plate to the legs so as not to rotate,
The position fixing means is provided on the top plate side, and is provided on the top plate side with an engaging member that is engaged with the leg body by being moved when the top plate is in a use position. A furniture with a top board, comprising: holding means for holding the engaging member so as not to move when the engaging member is in a non-engaged state with respect to the leg.

The leg body includes a plurality of leg columns extending in the vertical direction and a horizontal rod connecting the leg columns, and the engaging member is engaged with a lower surface of the horizontal rod. The furniture with a top plate according to claim 1.

The position fixing means includes a support member that is fixed to the top plate and supports the engagement member, and the holding means is a holding portion formed on the support member, and is in the non-engaged state. The furniture with a top plate according to claim 1 or 2, wherein the engagement member is held by the holding portion.

The engaging member is pivotally supported by the support member and is engaged with the leg body by a rotating operation, and the engaging member is held by the holding portion by the rotating operation. The furniture with a top plate according to claim 3, wherein a held portion is formed.

5. The furniture with a top plate according to claim 3, wherein the engagement member is formed with a contact portion that contacts a lower surface of the top plate when engaged with the holding portion.

6. The furniture with a top plate according to claim 3, wherein at least one of the engagement member and the support member is formed of an elastic material.