JP2001292834A - Vertically movable table - Google Patents
Vertically movable tableInfo
- Publication number
- JP2001292834A JP2001292834A JP2000115486A JP2000115486A JP2001292834A JP 2001292834 A JP2001292834 A JP 2001292834A JP 2000115486 A JP2000115486 A JP 2000115486A JP 2000115486 A JP2000115486 A JP 2000115486A JP 2001292834 A JP2001292834 A JP 2001292834A
- Authority
- JP
- Japan
- Prior art keywords
- top plate
- force
- lifting
- piece
- hole
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Tables And Desks Characterized By Structural Shape (AREA)
- Legs For Furniture In General (AREA)
Abstract
Description
【0001】[0001]
【発明の属する技術分野】本発明は、昇降テーブルに係
り、特に、コンピュータ(パソコン)の載置テーブル、
老人や病人の食事用テーブル、病院等のベッドサイドテ
ーブル等の多目的・多用途に使用可能な昇降テーブルに
関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lifting table, and more particularly, to a mounting table of a computer (personal computer),
The present invention relates to a lifting table that can be used for multiple purposes such as a dining table for the elderly and the sick, a bedside table for a hospital and the like.
【0002】[0002]
【従来の技術】一般に、昇降テーブルは、固定支柱部に
昇降可能に取り付けられた天板と、該天板を上昇方向へ
常時付勢する上昇付勢手段と、該天板を所定高さにロッ
クするロック手段と、を備えている。2. Description of the Related Art Generally, a lifting table is provided with a top plate mounted on a fixed column so as to be able to move up and down, a rising urging means for constantly biasing the top plate in a rising direction, and a height of the top plate at a predetermined height. Locking means for locking.
【0003】そして、従来では、ロック手段として、
(ピン等の)ストッパー部材を直接に固定支柱部へ抜き
差しして、天板のロック及びロックの解除を行ってい
た。[0003] Conventionally, as locking means,
A stopper member (such as a pin) is directly inserted into and removed from the fixed support portion to lock and unlock the top plate.
【0004】[0004]
【発明が解決しようとする課題】しかしながら、従来の
昇降テーブルでは、ロックの解除を行ったときに、天板
に荷重が掛かっていない状態(無荷重状態)では、天板
が不意に上昇する虞れがあり、天板に大きい荷重が掛か
っている状態(過負荷状態)では、天板が不意に下降す
る虞れがあり、危険であった。また、過負荷状態で、ス
トッパー部材を無理に抜こうとすれば、負担がかかり破
損が生じる虞れがあった。However, in the conventional lifting table, when the lock is released, if the load is not applied to the top plate (no load state), the top plate may rise unexpectedly. In a state where a large load is applied to the top plate (overload state), the top plate may drop unexpectedly, which is dangerous. In addition, if the stopper member is forcibly pulled out in an overloaded state, there is a possibility that a load may be applied and the stopper member may be damaged.
【0005】そこで、本発明は、構造が簡単で、軽量
で、移動が容易に行え、ロックの解除を行ったときに不
意に上昇・下降しない安全性が高い昇降テーブルを提供
することを目的とする。SUMMARY OF THE INVENTION It is an object of the present invention to provide a highly safe lifting table which has a simple structure, is lightweight, can be easily moved, and does not rise or fall unexpectedly when the lock is released. I do.
【0006】[0006]
【課題を解決するための手段】上述の目的を達成するた
めに、本発明に係る昇降テーブルは、固定支柱部に昇降
可能に取り付けられた天板と、該天板を上昇方向へ常時
付勢する上昇付勢手段と、該天板を所定高さにロックす
るロック手段と、を備えた昇降テーブルに於て、所定の
絶対値範囲を越える上昇力又は下降力が天板2に作用し
ている状態で、該上昇力又は下降力と逆方向の力を手で
付加して初めて上記ロック手段が解除するように構成し
たものである。In order to achieve the above object, a lifting table according to the present invention comprises a top plate mounted on a fixed column so as to be able to move up and down, and constantly urges the top plate in a rising direction. In a lifting table provided with a rising urging means that moves and a locking means that locks the top plate at a predetermined height, a lifting force or a downward force exceeding a predetermined absolute value range acts on the top plate 2. In this state, the locking means is released only when a force in a direction opposite to the upward force or the downward force is manually applied.
【0007】また、ロック手段が、固定支柱部に上下所
定ピッチで配設された掛止孔部と、天板側に付設されて
上記固定支柱部を昇降可能に外嵌された昇降基盤部に取
り付けられて上記掛止孔部に突入退出自在な掛止片部
と、から成り、かつ、上記掛止片部を上記掛止孔部から
退出して離脱する方向に弾発付勢する弾発部材を設け、
さらに、上記掛止片部と上記掛止孔部の掛止状態を強制
的に保持する第1位置と、上記掛止状態から無縁な自由
状態とする第2位置と、に切り換える手動レバーを設け
たものである。A locking means is provided on a fixed hole provided on the fixed support at a predetermined vertical pitch, and a lifting base provided on the top plate side and fitted to the fixed support so that the fixed support can be raised and lowered. A locking piece which is attached and is capable of entering and exiting the locking hole, and which is resiliently urged in a direction in which the locking piece retreats from the locking hole and separates therefrom. Provide members,
Further, a manual lever is provided for switching between a first position for forcibly holding the hooking state of the hooking piece and the hooking hole and a second position for leaving the hooking state free from the hooking state. It is a thing.
【0008】[0008]
【発明の実施の形態】以下、実施の形態を示す図面に基
づき、本発明を詳説する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the drawings showing embodiments.
【0009】図1は本発明の実施の一形態を示す斜視図
であり、図2は側面図で、図3は正面図である。本テー
ブルは、固定支柱部1に昇降可能に取り付けられた天板
2と、該天板2を上昇方向へ常時付勢する上昇付勢手段
3と、該天板2を所定高さにロックするロック手段4
と、を備えている。FIG. 1 is a perspective view showing an embodiment of the present invention, FIG. 2 is a side view, and FIG. 3 is a front view. The table includes a top plate 2 that is attached to the fixed support 1 so as to be able to move up and down, a rising urging means 3 that constantly urges the top plate 2 in the rising direction, and locks the top plate 2 at a predetermined height. Locking means 4
And
【0010】なお、本テーブルは、(あぐらの姿勢や、
イス・ソファーに着座した姿勢に合わせた)所定の高さ
に、天板2を昇降自在とできると共に、天板2上に、
(コンピュータ等の)機械や食事等の物体を載置でき、
ベッドサイドテーブル等多目的・多用途に使用できる。[0010] The table is provided with a
The top plate 2 can be moved up and down to a predetermined height (in accordance with the posture of sitting on the chair / sofa).
Can place objects such as machines and meals (such as computers),
It can be used for multipurpose and multipurpose such as bedside table.
【0011】具体的に述べると、固定支柱部1は、ベー
スフレーム5に左右に立設された支柱棒6,6から成
り、支柱棒6,6の上端部は、把持棒7に連設されてお
り、把持棒7を持ち上げて本テーブルを容易に移動でき
る。More specifically, the fixed support 1 is composed of support rods 6, 6 erected on the left and right sides of the base frame 5, and the upper ends of the support rods 6, 6 are connected to the holding rod 7. The table can be easily moved by lifting the grip bar 7.
【0012】天板2は、固定支柱部1を昇降可能に外嵌
された昇降基盤部8の前側面に、取付枠9を介して、取
り付けられている。昇降基盤部8は、その横断面が長孔
状に形成された筒体であり、横断面長孔の長手方向両端
部に、かつ、昇降基盤部8の内面の上下端部に、(4個
の)スベリブッシュ(軸受)10…が固着され、スベリブ
ッシュ10…は、固定支柱部1の支柱棒6,6に外嵌さ
れ、昇降基盤部8は、スベリブッシュ10…を介して、固
定支柱部1に上下往復動可能に取り付けられている。The top plate 2 is mounted via a mounting frame 9 to a front side surface of an elevating base portion 8 on which the fixed support portion 1 is fitted so as to be able to elevate and lower. The elevating base portion 8 is a cylindrical body having a cross section formed in a long hole shape, and is disposed at both ends in the longitudinal direction of the elongate hole in the cross section and at upper and lower ends of the inner surface of the elevating base portion 8 (four pieces). ) Are fixed to the support rods 6, 6 of the fixed support 1, and the lifting base 8 is fixed to the fixed support via the slide bush 10. The unit 1 is mounted so as to be able to reciprocate up and down.
【0013】上昇付勢手段3は、圧縮ガススプリングで
あり、ガススプリング本体の端部は、受け部11を介し
て、昇降基盤部8の内部の左右中央上部に取り付けられ
ると共に、ガススプリングのロッド端部は、ベースフレ
ーム5に取り付けられ、昇降基盤部8を上昇方向へ常時
付勢するように構成されている。The lifting urging means 3 is a compression gas spring, and the end of the gas spring body is attached to the upper left and right center of the inside of the lifting base 8 via the receiving portion 11 and the rod of the gas spring is mounted. The end is attached to the base frame 5 and is configured to constantly urge the lifting base 8 in the ascending direction.
【0014】ロック手段4は、固定支柱部1の支柱棒
6,6の後側面に上下所定ピッチで配設された掛止孔部
12…と、昇降基盤部8に取り付けられて掛止孔部12に突
入退出自在な掛止片部13と、から成る。The locking means 4 is provided with a pair of hook holes disposed on the rear side surfaces of the support rods 6 and 6 of the fixed support 1 at a predetermined vertical pitch.
And a hooking piece 13 attached to the elevating base 8 and capable of entering and leaving the hooking hole 12.
【0015】次に、図4に、図3のY−Y断面を示し、
掛止片部13を掛止孔部12から退出して離脱する方向に弾
発付勢する(圧縮バネ等の)弾発部材14を設け、さら
に、掛止片部13と掛止孔部12の掛止状態を強制的に保持
する第1位置と、掛止状態から無縁な自由状態とする第
2位置と、に切り換える手動レバー15を設けている。Next, FIG. 4 shows a YY cross section of FIG.
A resilient member (such as a compression spring) 14 for resiliently urging the hooking piece 13 in a direction of retreating from the hooking hole 12 and leaving the hooking piece 13 is provided. Further, the hooking piece 13 and the hooking hole 12 are provided. And a manual lever 15 for switching between a first position for forcibly holding the locked state and a second position for free from the locked state.
【0016】掛止片部13は、昇降基盤部8の後背面に配
設された掛止板部16の一端(上端)部に突設され、昇降
基盤部8の後側面に貫設された孔部17に突入退出自在と
なる。また、掛止板部16の他端(下端)部には、当接片
部18が水平前方向へ突設され、当接片部18は、昇降基盤
部8の上記孔部17よりも下方に貫設された孔部19に挿通
され、昇降基盤部8の内部に固着されたストッパー取付
部20に、軸部21の軸心廻りに揺動可能となるように、枢
着される。The hanging piece 13 protrudes from one end (upper end) of a hanging plate 16 disposed on the rear surface of the lifting base 8 and penetrates the rear surface of the lifting base 8. It can enter and exit the hole 17 freely. At the other end (lower end) of the hook plate 16, a contact piece 18 is provided to protrude forward in the horizontal direction, and the contact piece 18 is located below the hole 17 of the lifting base 8. And is pivotally attached to a stopper mounting portion 20 fixed to the inside of the elevating base portion 8 so as to be able to swing around the axis of the shaft portion 21.
【0017】さらに、当接片部18の前方端部の下面に
は、(圧縮バネ等の)弾発部材14の一端が固着又は圧接
され、弾発部材14は、その他端をストッパー取付部20に
固着又は圧接され、掛止片部13を掛止孔部12から退出し
て離脱する方向に弾発付勢する。即ち、掛止片部13と掛
止板部16と当接片部18とから構成されるストッパー体22
は、弾発部材14にて、図4に示すように、軸部21の時計
廻り方向(後方向)に弾発付勢される。Further, one end of a resilient member 14 (such as a compression spring) is fixed or pressed against the lower surface of the front end of the contact piece 18, and the other end of the resilient member 14 has a stopper mounting portion 20. , And is elastically urged in the direction in which the hooking piece 13 is withdrawn from the hooking hole 12 and separated therefrom. That is, the stopper body 22 composed of the hooking piece 13, the hooking plate 16, and the contact piece 18.
As shown in FIG. 4, the elastic member 14 is elastically urged in the clockwise direction (rearward direction) of the shaft portion 21.
【0018】手動レバー15は、図3と図4に示すよう
に、逆U字状乃至アーチ状若しくは門型等の把手部23
と、把手部23の両端部に連設される突板部24,24と、を
備え、把手部23は、昇降基盤部8の前正面に配設される
と共に、突板部24,24は、昇降基盤部8の前側面の左右
に貫設された孔部25,25に挿通され、昇降基盤部8の内
部に固着されたレバー取付部26に軸部27の軸心廻りに揺
動可能となるように枢着される。As shown in FIGS. 3 and 4, the manual lever 15 has a handle portion 23 having an inverted U shape, an arch shape, a gate shape or the like.
And protruding plates 24, 24 connected to both ends of the handle 23. The handle 23 is disposed in front of the lifting base 8, and the protruding plates 24, 24 The lever 25 is inserted through holes 25, 25 formed on the left and right sides of the front side surface of the base 8, and can swing around the axis of the shaft 27 to the lever mounting portion 26 fixed inside the elevating base 8. As if pivoted.
【0019】さらに、突板部24には、鋏バネ型の弾性体
28の一端28aが枢結され、弾性体28は、その他端28bを
レバー取付部26に枢結され、死点を越えて、突板部24を
軸部27廻りに揺動するように押圧する。Further, the projecting plate portion 24 has a scissor spring type elastic body.
One end 28a of the elastic member 28 is pivotally connected, and the other end 28b of the elastic member 28 is pivotally connected to the lever mounting portion 26, and presses the projecting plate portion 24 to swing around the shaft portion 27 beyond the dead center.
【0020】即ち、一端28aは、軸部27と他端28bとの
間に配設され、軸部27と他端28bを通る仮想直線と、一
端28aの軌跡と、が交わる点が死点Dとなり、図4に示
すように、一端28aが死点Dを後方に越えて、弾性体28
が手動レバー15(把手部23)を後方起立させるように押
圧し、また、図5に示すように、一端28aが死点Dを前
方に越えて、弾性体28が手動レバー15(把手部23)を前
方横倒しさせるように押圧する。That is, the one end 28a is disposed between the shaft 27 and the other end 28b, and the point at which the imaginary straight line passing through the shaft 27 and the other end 28b intersects the locus of the one end 28a is the dead point D. As shown in FIG. 4, the one end 28a extends beyond the dead center D rearward,
Presses the manual lever 15 (handle 23) so as to stand upright, and as shown in FIG. 5, one end 28a exceeds the dead center D, and the elastic body 28 moves the manual lever 15 (handle 23). ) Is pressed so as to lie forward.
【0021】なお、突板部24が、昇降基盤部8の孔部25
の上縁部及び下縁部に当接することで、手動レバー15
(把手部23)が、必要以上に、後方及び前方に揺動せず
に、起立及び前倒れの姿勢に保持されるように構成され
ている。It is to be noted that the projecting plate portion 24 is formed by
Abutting the upper and lower edges of the manual lever 15
The (handle portion 23) is configured to be held in a standing and leaning position without swinging backward and forward more than necessary.
【0022】従って、手動レバー15を死点Dを基準に前
後に揺動するだけで、容易に、把手部23の前倒れ状態と
起立状態とを切り換えることができる。Therefore, by simply swinging the manual lever 15 back and forth with reference to the dead center D, the handle portion 23 can be easily switched between the forwardly inclined state and the upright state.
【0023】図4に、天板2の上昇力付与状態を示す。
即ち、天板2に載置される物体Wの荷重が小さく(天板
2に物体Wが載置されなくてもよい)、上昇付勢手段3
(図3参照)の弾発的伸長力が、物体W、及び、天板2
・昇降基盤部8等の自重よりも大であって、天板2(昇
降基盤部8)に上昇力が作用している状態を示す。FIG. 4 shows a state in which the top plate 2 is given a lifting force.
That is, the load of the object W placed on the top 2 is small (the object W does not have to be placed on the top 2), and
The resilient extension force of the object W (see FIG. 3) and the top 2
-The state which is larger than the own weight of the lifting base part 8 etc., and the lifting force is acting on the top plate 2 (the lifting base part 8) is shown.
【0024】この際、手動レバー15は起立状態で、手動
レバー15の突板部24の当接部24aが、ストッパー体22の
当接片部18の上面に当接して弾発部材14を押圧する。言
い換えると、手動レバー15は、掛止片部13と掛止孔部12
の掛止状態を強制的に保持する第1位置にある。また、
掛止片部13の上縁部は、掛止孔部12の上縁部に、上昇付
勢手段3の弾発的上昇力にて、押圧されている。従っ
て、天板2は、ロック手段4にて、上昇しない。At this time, the manual lever 15 is in an upright state, and the contact portion 24a of the protruding plate portion 24 of the manual lever 15 contacts the upper surface of the contact piece 18 of the stopper body 22 to press the resilient member 14. . In other words, the manual lever 15 is
Is in the first position forcibly holding the latched state of. Also,
The upper edge of the retaining piece 13 is pressed against the upper edge of the retaining hole 12 by the resilient lifting force of the lifting urging means 3. Therefore, the top plate 2 does not rise by the locking means 4.
【0025】次に、図4のロック手段4の解除方法を説
明する。即ち、図5に示すように、手動レバー15を前倒
れ状態とする。言い換えると、掛止片部13と掛止孔部12
を、上記掛止状態から無縁な自由状態とする第2位置
に、手動レバー15を切り換える。Next, a method of releasing the lock means 4 shown in FIG. 4 will be described. That is, as shown in FIG. 5, the manual lever 15 is set to the forward tilt state. In other words, the hook piece 13 and the hook hole 12
The manual lever 15 is switched to a second position in which the lock state is changed from the above-mentioned locked state to an unrelated free state.
【0026】この際、ストッパー体22は、弾発部材14の
押圧力にて、掛止片部13が掛止孔部12から退出する後方
向に、弾発付勢されると共に、天板2に作用する上昇力
にて、掛止片部13の上縁部が、掛止孔部12の上縁部に、
押圧されている。ここで、天板2に作用する上昇力と
は、上昇付勢手段3の上昇付勢力から、天板2・昇降基
盤部8等の空の昇降部分の自重、及び、物体Wの重量
を、差引いた値をいう。At this time, the stopper body 22 is elastically urged by the pressing force of the elastic member 14 in the rearward direction in which the engaging piece 13 retreats from the engaging hole 12, and the stopper plate 22 is pressed. Due to the lifting force acting on the upper edge of the hook piece 13, the upper edge of the hook hole 12,
Pressed. Here, the lifting force acting on the top plate 2 refers to the weight of the object W and the weight of the empty lifting portion such as the top plate 2 and the lifting base 8 from the lifting biasing force of the lifting biasing means 3. Refers to the value after subtraction.
【0027】そして、天板2に作用している上昇力が、
所定の絶対値範囲を越える力の場合、掛止片部13の上縁
部が、掛止孔部12の上縁部に、(大きな摩擦力をもっ
て)圧接しているため、掛止状態を保持している。さら
に、掛止片部13の上縁部は、前方上傾となるように形成
されているため、摩擦力によって、掛止片部13が掛止孔
部12から退出(離脱)するのを防止できる。なお、天板
2に作用する上昇力が、所定の絶対値範囲内の力の場
合、掛止片部13の上縁部が、掛止孔部12の上縁部に、
(小さな摩擦力をもって)圧接乃至当接しているため、
掛止片部13が掛止孔部12から退出し、ロック手段4が解
除する。The lifting force acting on the top 2 is
In the case of a force exceeding the predetermined absolute value range, the upper edge of the hooking piece 13 is pressed against the upper edge of the hooking hole 12 (with a large frictional force), so that the hooking state is maintained. are doing. Further, the upper edge of the hooking piece 13 is formed to be inclined forward and upward, so that the hooking piece 13 is prevented from retreating (separating) from the hooking hole 12 due to frictional force. it can. When the lifting force acting on the top plate 2 is a force within a predetermined absolute value range, the upper edge of the hook piece 13 is attached to the upper edge of the hook hole 12,
Because it is pressed or abutted (with small frictional force)
The locking piece 13 retreats from the locking hole 12, and the locking means 4 is released.
【0028】そして、所定の絶対値範囲を越える上昇力
が天板2に作用している状態で、上昇力と逆方向の力を
手で付加して初めてロック手段4を解除することができ
る。言い換えると、手で付加する逆方向の力によって、
前記所定の絶対値範囲の力が、天板2に作用することと
なって、ロック手段4が解除する。具体的に述べると、
天板2に作用している(上昇付勢手段3による)上昇力
と逆方向の下方向の力を、天板2に手で付加すると、天
板2(昇降基盤部8)が下方向に移動し、図6(イ)に
示す掛止孔部12と掛止片部13の掛止状態から、図6
(ロ)に示すように、掛止片部13の上縁部が、掛止孔部
12の上縁部から離間して、弾発部材14(図5参照)の弾
発付勢力にて、掛止片部13が掛止孔部12から退出する方
向に揺動し(ストッパー体22が軸部21廻りに後方向に揺
動し)、図6(ハ)に示すように、掛止片部13が掛止孔
部12から離脱し、図7に示すように、ロック手段4が解
除する。Then, in a state where a lifting force exceeding a predetermined absolute value range is acting on the top 2, the locking means 4 can be released only by applying a force in a direction opposite to the lifting force by hand. In other words, by the reverse force applied by hand,
The force in the predetermined absolute value range acts on the top plate 2 and the locking means 4 is released. Specifically,
When a downward force in the opposite direction to the lifting force acting on the top plate 2 (by the lifting urging means 3) is applied to the top plate 2 by hand, the top plate 2 (elevation base unit 8) moves downward. 6A, and moves from the state where the hook hole 12 and the hook piece 13 shown in FIG.
As shown in (b), the upper edge of the hooking piece 13 is
12, the engaging piece 13 swings in the direction of retreating from the engaging hole 12 by the elastic urging force of the elastic member 14 (see FIG. 5) (see FIG. 5). Swings rearward around the shaft 21), as shown in FIG. 6 (c), the hooking piece 13 is separated from the hooking hole 12, and as shown in FIG. To release.
【0029】ロック手段4が解除すると、図7に示すよ
うに、天板2(昇降基盤部8)が、上昇付勢手段3の
(弾発的)伸長力にて、上昇する。そして、上昇してい
る天板2を所定の高さにロックする場合、図8に示すよ
うに、手動レバー15を起立させていくと、弾性体28の一
端28aが死点Dを後方に越えて、手動レバー15を起立さ
せるように弾発付勢すると共に、突板部24の当接部24a
が、ストッパー体22の当接片部18を押圧し、ストッパー
体22を前方向に揺動させる。この際、掛止片部13が、固
定支柱部1の支柱棒6の外面に当接した場合、弾性体28
の弾発付勢にて、掛止片部13が支柱棒6の外面を押圧す
ると共に、その外面を摺接しながら上昇し、直近上部に
ある掛止孔部12に突入し、再度、掛止片部13と掛止孔部
12の掛止状態(図4参照)となり、所定の高さにてロッ
クが完了する。When the locking means 4 is released, as shown in FIG. 7, the top plate 2 (elevation base portion 8) is raised by the (elastic) extension force of the lifting urging means 3. Then, when locking the ascending top plate 2 at a predetermined height, as shown in FIG. 8, as the manual lever 15 is raised, one end 28 a of the elastic body 28 moves backward beyond the dead center D. Then, the manual lever 15 is elastically urged to stand up, and the contact portion 24a of the projecting plate portion 24 is pressed.
Presses the contact piece 18 of the stopper body 22 to swing the stopper body 22 forward. At this time, when the hooking piece 13 comes into contact with the outer surface of the column 6 of the fixed column 1, the elastic body 28
As a result, the hook 13 presses against the outer surface of the support rod 6, rises while sliding on the outer surface, and enters the hook hole 12 located immediately above, and again locks. One part 13 and hook hole
The locked state is reached (see FIG. 4), and the lock is completed at the predetermined height.
【0030】次に、図9に、天板2の下降力付与状態を
示す。即ち、天板2に載置される物体Wの荷重が大き
く、物体Wの重量、及び、天板2・昇降基盤部8等の空
の自重分の合計が、上昇付勢手段3(図3参照)の伸長
力よりも大きくて、前記所定の絶対値範囲を越えた下降
力が、天板2(昇降基盤部8)に作用している状態を示
す。Next, FIG. 9 shows a state where the descending force of the top plate 2 is applied. That is, the weight of the object W placed on the top 2 is large, and the weight of the object W and the total weight of the empty weight of the top 2 and the lifting base 8 are combined with the lifting urging means 3 (FIG. 3). 3) shows a state in which a descending force greater than the extension force of the reference plate 2 and exceeding the predetermined absolute value range is acting on the top plate 2 (elevation base portion 8).
【0031】この際、手動レバー15は起立状態で、掛止
片部13と掛止孔部12の掛止状態を強制的に保持する第1
位置にある。また、掛止片部13の下縁部は、掛止孔部12
の下縁部に、重力による下降力にて、押圧されている。
従って、天板2は、ロック手段4にて、下降しない。At this time, when the manual lever 15 is in the upright state, the first state for forcibly maintaining the locking state of the locking piece 13 and the locking hole 12 is provided.
In position. In addition, the lower edge of the hooking piece 13 is
Is pressed by the lowering force of gravity.
Therefore, the top plate 2 does not descend by the locking means 4.
【0032】次に、図9のロック手段4の解除方法を説
明する。即ち、図10に示すように、手動レバー15を前倒
れ状態とする。言い換えると、掛止片部13と掛止孔部12
を、上記掛止状態から無縁な自由状態とする第2位置
に、手動レバー15を切り換える。Next, a method of releasing the lock means 4 of FIG. 9 will be described. That is, as shown in FIG. 10, the manual lever 15 is set to the forward leaning state. In other words, the hook piece 13 and the hook hole 12
The manual lever 15 is switched to a second position in which the lock state is changed from the above-mentioned locked state to an unrelated free state.
【0033】この際、ストッパー体22は、弾発部材14の
押圧力にて、掛止片部13が掛止孔部12から退出する後方
向に、弾発付勢されると共に、天板2に作用する下降力
にて、掛止片部13の下縁部が、掛止孔部12の下縁部に、
押圧されている。ここで、天板2に作用する下降力と
は、天板2・昇降基盤部8等の空の昇降部分の自重、及
び、物体Wの重量の合計から、上昇付勢手段3の上昇付
勢力を、差引いた値をいう。At this time, the stopper body 22 is resiliently urged by the pressing force of the resilient member 14 in the rearward direction in which the retaining piece portion 13 retreats from the retaining hole portion 12 and the top plate 2 is pressed. With the lowering force acting on the lower edge of the hooking piece 13, the lower edge of the hooking hole 12
Pressed. Here, the descending force acting on the top plate 2 is the ascending urging force of the ascending urging means 3 based on the total weight of the empty elevating portion such as the top plate 2 and the elevating base 8 and the weight of the object W. Means the value obtained by subtracting
【0034】そして、天板2に作用している下降力が、
所定の絶対値範囲を越える力の場合、掛止片部13の下縁
部が、掛止孔部12の下縁部に、(大きな摩擦力をもっ
て)圧接しているため、掛止状態を保持している。さら
に、掛止片部13の下縁部は、前方下傾となるように形成
されているため、摩擦力によって、掛止片部13が掛止孔
部12から退出(離脱)するのを防止できる。なお、天板
2に作用する下降力が、所定の絶対値範囲内の力の場
合、掛止片部13の下縁部が、掛止孔部12の下縁部に、
(小さな摩擦力をもって)圧接乃至当接しているため、
掛止片部13が掛止孔部12から退出し、ロック手段4が解
除する。Then, the descending force acting on the top 2 is
In the case of a force exceeding the predetermined absolute value range, the lower edge of the latching piece 13 is pressed against the lower edge of the latching hole 12 (with a large frictional force), so that the latching state is maintained. are doing. Furthermore, since the lower edge of the hook piece 13 is formed to be inclined forward and downward, it is possible to prevent the hook piece 13 from retreating (leaving) from the hook hole 12 due to frictional force. it can. When the descending force acting on the top plate 2 is a force within a predetermined absolute value range, the lower edge of the hook piece 13 is
Because it is pressed or abutted (with small frictional force)
The locking piece 13 retreats from the locking hole 12, and the locking means 4 is released.
【0035】そして、所定の絶対値範囲を越える下降力
が天板2に作用している状態で、下降力と逆方向の力を
手で付加して初めてロック手段4を解除することができ
る。言い換えると、手で付加する逆方向の力によって、
前記所定の絶対値範囲の力が、天板2に作用することと
なって、ロック手段4が解除する。具体的に述べると、
天板2に作用している下降力と逆方向の上方向の力を、
天板2に手で付加すると、天板2(昇降基盤部8)が上
方向に移動し、図示省略するが、掛止片部13の下縁部
が、掛止孔部12の下縁部から離間して、弾発部材14の弾
発付勢力にて、掛止片部13が掛止孔部12から退出して離
脱し、ロック手段4が解除する。Then, in a state where a descending force exceeding a predetermined absolute value range is acting on the top plate 2, the locking means 4 can be released only by applying a force in a direction opposite to the descending force by hand. In other words, by the reverse force applied by hand,
The force in the predetermined absolute value range acts on the top plate 2 and the locking means 4 is released. Specifically,
The upward force in the opposite direction to the descending force acting on the top 2
When the top plate 2 is manually added to the top plate 2, the top plate 2 (elevation base unit 8) moves upward, and although not shown, the lower edge of the hooking piece 13 is the lower edge of the hook hole 12. , The engaging piece 13 retreats from the engaging hole 12 due to the elastic urging force of the elastic member 14, and the locking means 4 is released.
【0036】ロック手段4が解除すると、天板2(昇降
基盤部8)が、重力による下降力にて、下降する。そし
て、下降している天板2を所定の高さにロックする場
合、手動レバー15を起立させ、ストッパー体22を前方向
に揺動させる。この際、掛止片部13が、固定支柱部1の
支柱棒6の外面に当接した場合、弾性体28の弾発付勢に
て、掛止片部13が支柱棒6の外面を押圧すると共に、そ
の外面を摺接しながら下降し、直近下部にある掛止孔部
12に突入し、再度、掛止片部13と掛止孔部12の掛止状態
(図9参照)となり、所定の高さにてロックが完了す
る。When the locking means 4 is released, the top plate 2 (elevation base unit 8) is lowered by the force of gravity. Then, when locking the descending top plate 2 at a predetermined height, the manual lever 15 is raised and the stopper body 22 is swung forward. At this time, when the hook piece 13 comes into contact with the outer surface of the support rod 6 of the fixed support 1, the hook piece 13 presses the outer surface of the support rod 6 by the elastic force of the elastic body 28. And descends while sliding on the outer surface.
12, the hook piece 13 and the hook hole 12 are again in the hooked state (see FIG. 9), and the lock is completed at the predetermined height.
【0037】次に、上昇付勢手段3(図3参照)の伸長
力と、天板2・昇降基盤部8等の空の昇降部分の自重、
及び、物体Wの重量と、の総計(上昇方向をプラス、下
降方向をマイナスとしての総計)の絶対値が、前記所定
の絶対値範囲内にある状態では、手で天板2を上方向又
は下方向に力を付加して昇降させて、ロック手段4を解
除し、手で天板2を所定の高さに合わせて、ロックす
る。Next, the extension force of the lifting urging means 3 (see FIG. 3) and the weight of the empty lifting parts such as the top plate 2 and the lifting base part 8 are calculated.
And, in a state where the absolute value of the sum of the weight of the object W and the sum of the sum of the weight in the ascending direction and the descending direction is in the predetermined absolute value range, the top plate 2 is manually moved upward or The locking means 4 is released by applying a downward force to move up and down, and the top plate 2 is manually adjusted to a predetermined height and locked.
【0038】なお、本発明は、上述の実施の形態に限定
されず、上昇付勢手段3を、滑車と重りの組み合わせに
て構成してもよく、また、弾性体28を圧縮コイルバネや
引張コイルバネとすることも自由であり、また、突板部
24に2個の切欠溝(ラッチ溝)を設けて、これに係脱自
在なラチェットピンやラチェットボールを設けてもよ
い。このように、本発明の要旨を逸脱しない範囲で設計
変更可能である。The present invention is not limited to the above-described embodiment, and the upward biasing means 3 may be constituted by a combination of a pulley and a weight, and the elastic body 28 may be formed by a compression coil spring or a tension coil spring. It is also free to
24 may be provided with two notched grooves (latch grooves), and a ratchet pin or a ratchet ball which can be freely engaged and disengaged may be provided. Thus, design changes can be made without departing from the spirit of the present invention.
【0039】[0039]
【発明の効果】本発明は、上述の如く構成されているの
で、次に記載する効果を奏する。Since the present invention is configured as described above, the following effects can be obtained.
【0040】(請求項1によれば)ロックの解除を行っ
たときに、天板2が不意に(急激に)上昇又は下降する
ことを防止し、安全性に優れたものとなる。When the lock is released (according to claim 1), the top plate 2 is prevented from suddenly (rapidly) rising or lowering, and the safety is excellent.
【0041】(請求項2によれば)ロック手段4の構造
が簡単になると共に、手動レバー15にてロック手段4の
切り換えが容易に行え、機能的に優れたものとなり、軽
量化が図れ、移動が容易に行える。According to the second aspect of the present invention, the structure of the lock means 4 is simplified, and the lock means 4 can be easily switched by the manual lever 15, so that the function is excellent and the weight can be reduced. Easy to move.
【図1】本発明の実施の一形態を示す斜視図である。FIG. 1 is a perspective view showing an embodiment of the present invention.
【図2】本発明の側面図である。FIG. 2 is a side view of the present invention.
【図3】本発明の正面図である。FIG. 3 is a front view of the present invention.
【図4】要部側面断面図である。FIG. 4 is a side sectional view of a main part.
【図5】要部側面断面図である。FIG. 5 is a side sectional view of a main part.
【図6】要部作用説明図である。FIG. 6 is an explanatory diagram of an operation of a main part.
【図7】要部側面断面図である。FIG. 7 is a side sectional view of a main part.
【図8】要部側面断面図である。FIG. 8 is a side sectional view of a main part.
【図9】要部側面断面図である。FIG. 9 is a side sectional view of a main part.
【図10】要部側面断面図である。FIG. 10 is a side sectional view of a main part.
1 固定支柱部 2 天板 3 上昇付勢手段 4 ロック手段 8 昇降基盤部 12 掛止孔部 13 掛止片部 14 弾発部材 15 手動レバー DESCRIPTION OF SYMBOLS 1 Fixed support part 2 Top plate 3 Elevating urging means 4 Locking means 8 Elevating base part 12 Hook hole part 13 Hook piece part 14 Resilient member 15 Manual lever
───────────────────────────────────────────────────── フロントページの続き Fターム(参考) 3B053 NB04 NB07 NF01 NG02 3B069 DA07 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 3B053 NB04 NB07 NF01 NG02 3B069 DA07
Claims (2)
た天板2と、該天板2を上昇方向へ常時付勢する上昇付
勢手段3と、該天板2を所定高さにロックするロック手
段4と、を備えた昇降テーブルに於て、 所定の絶対値範囲を越える上昇力又は下降力が天板2に
作用している状態で、該上昇力又は下降力と逆方向の力
を手で付加して初めて上記ロック手段4が解除するよう
に構成したことを特徴とする昇降テーブル。1. A top plate 2 attached to a fixed column portion 1 so as to be able to move up and down, a rising urging means 3 for constantly urging the top plate 2 in a rising direction, and locking the top plate 2 at a predetermined height. A lifting means or a lowering force exceeding a predetermined absolute value range acts on the top plate 2 in a direction opposite to the lifting force or the lowering force. Characterized in that the lock means 4 is unlocked only after the manual operation is added.
定ピッチで配設された掛止孔部12と、天板2側に付設さ
れて上記固定支柱部1を昇降可能に外嵌された昇降基盤
部8に取り付けられて上記掛止孔部12に突入退出自在な
掛止片部13と、から成り、かつ、上記掛止片部13を上記
掛止孔部12から退出して離脱する方向に弾発付勢する弾
発部材14を設け、さらに、上記掛止片部13と上記掛止孔
部12の掛止状態を強制的に保持する第1位置と、上記掛
止状態から無縁な自由状態とする第2位置と、に切り換
える手動レバー15を設けた請求項1記載の昇降テーブ
ル。2. A locking means 4 is provided on the fixed column 1 at a predetermined pitch in the vertical direction, and is provided on the top plate 2 so that the fixed column 1 is fitted on the fixed column 1 so as to be able to move up and down. And a hook piece 13 attached to the lifting base 8 and capable of entering and leaving the hook hole 12, and the hook piece 13 is withdrawn from the hook hole 12 and separated. A resilient member 14 for resiliently biasing in the direction in which the latching portion 13 and the latching hole portion 12 are forcibly held in a latching state; The lifting table according to claim 1, further comprising a manual lever (15) for switching between a free position and an unrelated free position.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2000115486A JP2001292834A (en) | 2000-04-17 | 2000-04-17 | Vertically movable table |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2000115486A JP2001292834A (en) | 2000-04-17 | 2000-04-17 | Vertically movable table |
Publications (1)
Publication Number | Publication Date |
---|---|
JP2001292834A true JP2001292834A (en) | 2001-10-23 |
Family
ID=18627115
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2000115486A Pending JP2001292834A (en) | 2000-04-17 | 2000-04-17 | Vertically movable table |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2001292834A (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007068974A (en) * | 2005-03-31 | 2007-03-22 | Arai Seisakusho:Kk | Structure provided with top plate |
JP2007082730A (en) * | 2005-09-22 | 2007-04-05 | Komura Seisakusho:Kk | Elevating and lowering table |
JP2007143588A (en) * | 2005-11-24 | 2007-06-14 | Takano Co Ltd | Height adjuster of furniture |
JP2012061056A (en) * | 2010-09-14 | 2012-03-29 | Added Value Corp | Disaster prevention table |
JP2014008175A (en) * | 2012-06-29 | 2014-01-20 | ▲海▼麥斯科技有限公司 | Elevating table |
JP2020185343A (en) * | 2019-05-17 | 2020-11-19 | 富士電機株式会社 | Shelf support device |
-
2000
- 2000-04-17 JP JP2000115486A patent/JP2001292834A/en active Pending
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007068974A (en) * | 2005-03-31 | 2007-03-22 | Arai Seisakusho:Kk | Structure provided with top plate |
JP2007082730A (en) * | 2005-09-22 | 2007-04-05 | Komura Seisakusho:Kk | Elevating and lowering table |
JP4616741B2 (en) * | 2005-09-22 | 2011-01-19 | 株式会社コムラ製作所 | Lifting table |
JP2007143588A (en) * | 2005-11-24 | 2007-06-14 | Takano Co Ltd | Height adjuster of furniture |
JP2012061056A (en) * | 2010-09-14 | 2012-03-29 | Added Value Corp | Disaster prevention table |
JP2014008175A (en) * | 2012-06-29 | 2014-01-20 | ▲海▼麥斯科技有限公司 | Elevating table |
JP2020185343A (en) * | 2019-05-17 | 2020-11-19 | 富士電機株式会社 | Shelf support device |
JP7298293B2 (en) | 2019-05-17 | 2023-06-27 | 富士電機株式会社 | Shelf support device |
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