JPH0616395A - Elevator stand horizontally holding device - Google Patents

Elevator stand horizontally holding device

Info

Publication number
JPH0616395A
JPH0616395A JP17730292A JP17730292A JPH0616395A JP H0616395 A JPH0616395 A JP H0616395A JP 17730292 A JP17730292 A JP 17730292A JP 17730292 A JP17730292 A JP 17730292A JP H0616395 A JPH0616395 A JP H0616395A
Authority
JP
Japan
Prior art keywords
pulley
wire
end side
vicinity
lift
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
Application number
JP17730292A
Other languages
Japanese (ja)
Inventor
Takasane Segawa
卓真 瀬川
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nabtesco Corp
Original Assignee
Teijin Seiki Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Teijin Seiki Co Ltd filed Critical Teijin Seiki Co Ltd
Priority to JP17730292A priority Critical patent/JPH0616395A/en
Publication of JPH0616395A publication Critical patent/JPH0616395A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To provide an elevator stand horizontally holding device having its structure simplified, its cost lowered, and suitable for also a large-sized elevator stand. CONSTITUTION:Respective peripheral portion holding mechanism for holding three sides of an elevator stand 11 approximately formed into a quadrangle shape are provided with a pair of pulley supporting shafts 31, 32 provided on both ends of each side of the elevator stand 11, first pulleys 34a, 35a attached to both shafts 31, 32, and second pulleys 34b, 35b attached to the shafts 31, 32 closer to the elevator stand 11 that the both pulleys 34a, 35a. Moreover, it is provided with a first wire 36 hung from the vicinity of the upper end of a left side stay 10a to the vicinity of the lower end of a right side stay 10a, and on the way wound around the lower part of one side first pulley 34a and the upper part of the other side first pulley 35a and a second wire 37 hung from the vicinity of the lower end of the left side stay 10a to the vicinity of the upper end of the right side stay 10a, and on the way wound the upper part of one side second pulley 34b and the lower part of the other side second pulley 35b.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は、昇降台の水平保持装
置、詳しくはワイヤによる保持機構を具備した昇降台の
水平保持装置に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a horizontal holding device for a lift, and more particularly to a horizontal holding device for a lift equipped with a wire holding mechanism.

【0002】[0002]

【従来の技術】従来、この種の昇降台の水平保持装置と
しては、例えば光硬化樹脂を積層硬化させて立体を造形
する光造形システムに設けられるものがある。この装置
は、前記光硬化樹脂の硬化層を順次積層するために昇降
台である造形用の棚を水平に保ちつつ昇降させるもの
で、この造形用の棚をガイドシャフトによって昇降自在
に案内するとともに、ボールネジ機構等を用いて昇降駆
動するようになっている。
2. Description of the Related Art Conventionally, as a horizontal holding device for this type of lifting table, there is one provided in an optical molding system for molding a solid by, for example, laminating and curing a photo-curing resin. This device raises and lowers a modeling shelf, which is an elevating table, in order to sequentially stack the cured layers of the photo-curing resin, and guides the modeling shelf by a guide shaft so that it can be moved up and down. A ball screw mechanism or the like is used to move up and down.

【0003】[0003]

【発明が解決しようとする課題】しかしながら、このよ
うな従来の昇降台の水平保持装置にあっては、特に造形
用の棚(昇降台)が大型になる場合に、この造形用の棚
の一部を昇降駆動しつつこの棚を水平に保つのが容易で
なかった。すなわち、前記ガイドシャフトのような案内
機構は、ボールねじ機構による昇降台の昇降駆動に対し
昇降台を回り止めする役割を果たすが、昇降台に係合す
る一部分で昇降台のわずかな傾きを規制するようなこと
はできない。また、昇降台を一定位置に保持するのはボ
ールネジ機構だけであるため、昇降台に積載される造形
物体の重心位置の偏倚や外力によって昇降台が傾き易
く、特に昇降台が大型である場合にこれが顕著になる。
However, in such a conventional horizontal holding device for a lifting table, particularly when the modeling shelf (elevating table) becomes large, one of the modeling racks is It was not easy to keep this shelf horizontal while driving the part up and down. That is, the guide mechanism such as the guide shaft plays a role of stopping the elevator table from rotating when the elevator table is moved up and down by the ball screw mechanism, but restricts a slight inclination of the elevator table at a part engaged with the elevator table. You can't do it. Also, since only the ball screw mechanism holds the lifting table at a fixed position, the lifting table is easily tilted due to the deviation of the center of gravity of the shaped object loaded on the lifting table or an external force, especially when the lifting table is large. This becomes remarkable.

【0004】これに対し昇降台を水平に保持する部位を
増設することが考えられるが、直線ガイド機構を増設し
たのではその駆動手段を含む多数の部材を増加する必要
があり、構成の複雑化とコスト高を招来することにな
る。そこで本発明は、構成が簡素で低コストであるとと
もに大型の昇降台にも好適な全く新規な昇降台の水平保
持装置を提供することを目的とする。
On the other hand, it is conceivable to add a part for holding the lifting platform horizontally, but if a linear guide mechanism is added, it is necessary to increase many members including its driving means, which complicates the structure. And high cost will be brought. It is therefore an object of the present invention to provide a completely novel horizontal holding device for a lift, which has a simple structure and is low in cost, and is suitable for a large lift.

【0005】[0005]

【課題を解決するための手段】上記目的達成のため、請
求項1記載の発明に係る昇降台の水平保持装置において
は、略四角形の昇降台11の少なくとも3辺を保持する周
辺部保持機構のそれぞれを、図1にその原理図を示すよ
うに、昇降台11の各辺の両端側で昇降台11から水平方向
に平行に突出するよう設けられた1対の滑車支持軸31、
32と、両滑車支持軸31、32に取り付けられた1対の第1
滑車34a、34bと、第1滑車34a、34bより昇降台11に
近接するよう両滑車支持軸31、32に取り付けられた1対
の第2滑車35a、35bと、前記各辺の一端側の支柱10a
の上端近傍から前記各辺の他端側の支柱10aの下端近傍
まで掛け渡されるとともにその途中で該一端側の第1滑
車34aの下部と該他端側の第1滑車35aの上部に巻き掛
けられた第1ワイヤ36と、前記各辺の一端側の支柱10a
の下端近傍から前記各辺の他端側の支柱10aの上端近傍
まで掛け渡されるとともにその途中で該一端側の第2滑
車34bの上部と該他端側の第2滑車35bの下部に巻き掛
けられた第2ワイヤ37と、を備える構成とし、第1ワイ
ヤ36および第2ワイヤ37がそれぞれの張力によって前記
昇降台11の傾きを阻止することのできる所定の引張強さ
を有するようにしている。
In order to achieve the above object, in a horizontal holding device for an elevator according to a first aspect of the present invention, a peripheral part holding mechanism for holding at least three sides of a substantially rectangular elevator 11 is provided. As shown in the principle diagram thereof in FIG. 1, a pair of pulley support shafts 31, which are provided so as to project from the lift table 11 in parallel in the horizontal direction at both ends of each side of the lift table 11,
32, and a pair of first 1 mounted on both pulley support shafts 31, 32
Pulleys 34a, 34b, a pair of second pulleys 35a, 35b attached to both pulley support shafts 31, 32 so as to be closer to the lift 11 than the first pulleys 34a, 34b, and a column on one end side of each side. 10a
From the vicinity of the upper end to the vicinity of the lower end of the column 10a on the other end side of each side, and in the middle of that, it is wound around the lower part of the first pulley 34a on the one end side and the upper part of the first pulley 35a on the other end side. The first wire 36 and the column 10a at one end of each side
From the vicinity of the lower end of each side to the vicinity of the upper end of the column 10a on the other end of each side, and on the way, it is wound around the upper part of the second pulley 34b on the one end side and the lower part of the second pulley 35b on the other end side. And the second wire 37 is provided, and the first wire 36 and the second wire 37 have a predetermined tensile strength capable of preventing the inclination of the lift 11 by the respective tensions. .

【0006】また、請求項2記載の発明に係る昇降台の
水平保持装置においては、互いに所定角度で交差するよ
う形成された昇降台の2辺を、上述のように構成した周
辺部保持機構によってそれぞれ保持させるようにしてい
る。
Further, in the elevator horizontal holding device according to the second aspect of the present invention, the two sides of the elevators formed so as to intersect each other at a predetermined angle are provided with the peripheral portion holding mechanism configured as described above. I am trying to hold each.

【0007】[0007]

【作用】請求項1記載の発明では、略四角形の昇降台の
少なくとも3辺を保持する周辺部保持機構のそれぞれに
おいて、各辺の一端側の支柱10aの上端近傍からその各
辺の他端側の支柱10aの下端近傍へ掛け渡された第1ワ
イヤ36が、その途中で該一端側の第1滑車34aの下部と
該他端側の第1滑車3の上部に巻き掛けられ、これとは
逆に、各辺の一端側の支柱10aの下端近傍からその各辺
の他端側の支柱10aの上端近傍まで掛け渡された第2ワ
イヤ37が、その途中で該一端側の第2滑車34bの上部と
該他端側の第2滑車35bの下部に巻き掛けられているか
ら、昇降台11を傾けようとする力に対して、各周辺部保
持機構の第1ワイヤ36又は第2ワイヤ37がその張力を増
加させることで、昇降台11の傾きが阻止される。また、
第1、第2ワイヤ36、37は何れも滑車31、32を介して昇
降台11に係合しているから、昇降台11の昇降には何等の
支承もない。さらに、各周辺部保持機構は、昇降台11の
各辺に対応して設けられるから、たとえ昇降台11が大型
になってもワイヤ36、37が長くなる程度で、きわめて簡
素な構成となり、低コストのものにできる。
According to the first aspect of the invention, in each of the peripheral part holding mechanisms for holding at least three sides of the substantially quadrangular lifting platform, from the vicinity of the upper end of the column 10a at one end of each side to the other end of each side. The first wire 36 hung near the lower end of the column 10a is wound around the lower part of the first pulley 34a on the one end side and the upper part of the first pulley 3 on the other end side in the middle thereof. On the contrary, the second wire 37, which is wound from the vicinity of the lower end of the strut 10a on one end side of each side to the vicinity of the upper end of the strut 10a on the other end side of each side, is in the middle of the second pulley 34b on the one end side. Since it is wound around the upper part of the above and the lower part of the second pulley 35b on the other end side, the first wire 36 or the second wire 37 of each peripheral part holding mechanism is against the force to tilt the lift 11. By increasing the tension, the tilting of the lift 11 is prevented. Also,
Since the first and second wires 36 and 37 are both engaged with the lifting table 11 via the pulleys 31 and 32, there is no support for lifting the lifting table 11. Further, since each peripheral part holding mechanism is provided corresponding to each side of the lift table 11, even if the lift table 11 is large, the wires 36 and 37 are long, and the structure is extremely simple and low. Can be costly.

【0008】請求項2記載の発明では、所定角度で交差
するよう形成された昇降台の2辺がそれぞれ周辺部保持
機構によって保持される。この場合、一方の辺を中心に
昇降台を傾けようとすると他方の辺が傾くことになるか
ら、前記交差角がある程度大きければ、2つの周辺部保
持機構だけで昇降台を水平保持することができる。
According to the second aspect of the invention, the two sides of the lift table formed so as to intersect at a predetermined angle are held by the peripheral part holding mechanism. In this case, if an attempt is made to incline the lifting platform about one side, the other side is tilted. Therefore, if the crossing angle is large to some extent, it is possible to hold the lifting platform horizontally only by the two peripheral holding mechanisms. it can.

【0009】[0009]

【実施例】以下、本発明の実施例を図面に基づいて具体
的に説明する。図2〜図5は請求項1記載の発明に係る
昇降台の水平保持装置の一実施例を示す図であり、本発
明を光効果樹脂を用いる立体造形システムの造形棚昇降
装置に適用した例を示している。
Embodiments of the present invention will be described below in detail with reference to the drawings. 2 to 5 are views showing an embodiment of a horizontal holding device for a lifting platform according to the invention of claim 1, and an example in which the present invention is applied to a modeling shelf lifting device of a three-dimensional modeling system using a light effect resin. Is shown.

【0010】これらの図において、10はこの装置のフレ
ーム、11はフレーム10の4本の支柱10aの間に水平に設
けられた略四角形の昇降台であり、昇降台11は平坦な上
面12を有している。この昇降台11は、光硬化樹脂を積層
硬化させて立体を造形するための造形棚として使用され
るもので、フレーム10と共に図示しない未硬化樹脂液槽
内に設置され、前記光硬化樹脂の硬化層を順次上下に積
層するために未硬化樹脂液中で水平に保たれつつ後述す
る昇降駆動手段50により昇降駆動されるようになってい
る。このため、昇降台11の左右の平行な側縁部13A、13
Bは、一対の周辺部保持機構21、22によってそれぞれ昇
降可能かつ前後方向の傾きを規制するよう保持されてお
り、両側縁部13a、13Bと水平方向に直交する昇降台11
の後縁部13Cは、周辺部保持機構23によって昇降可能か
つ左右方向の傾きを規制するよう保持されている。ま
た、昇降台11の四隅のうち2箇所には回り止め用のガイ
ド部60A、60Bが設けられており、これらのガイド部60
A、60Bは、フレーム10の4本の支柱10aのうち対角線
上の2本の支柱10aに係合し昇降台11の鉛直軸線回りの
回転を阻止するようになっている。
In these figures, 10 is a frame of this apparatus, 11 is a substantially rectangular elevator which is horizontally provided between four columns 10a of the frame 10, and the elevator 11 has a flat upper surface 12. Have The lifting table 11 is used as a modeling shelf for stacking and curing a photocurable resin to form a solid body, and is installed together with the frame 10 in an uncured resin liquid tank (not shown) to cure the photocurable resin. In order to stack the layers one on top of the other, the layers are kept horizontally in the uncured resin liquid and are driven up and down by a lifting drive means 50 described later. For this reason, the left and right parallel side edges 13A, 13
B is held by a pair of peripheral part holding mechanisms 21 and 22 so as to be able to move up and down and regulate the inclination in the front-rear direction, and a lifting table 11 that is orthogonal to the side edges 13a and 13B in the horizontal direction.
The rear edge portion 13C is held by the peripheral portion holding mechanism 23 so as to be able to move up and down and regulate the inclination in the left-right direction. In addition, guide portions 60A and 60B for preventing rotation are provided at two locations among the four corners of the lifting table 11, and these guide portions 60 are provided.
A and 60B engage with two diagonal columns 10a of the four columns 10a of the frame 10 to prevent rotation of the lift 11 about the vertical axis.

【0011】具体的には、周辺部保持機構21は、図2お
よび図3に示すようにフレーム10と昇降台11の間に介装
されており、昇降台11側に装着される部材として、昇降
台11の1辺である側縁部13Aの両端側で昇降台11から水
平方向に平行に突出するよう設けられた1対の滑車支持
軸31、32と、両滑車支持軸31、32に1つずつ取り付けら
れた1対の第1滑車34a、34bと、第1滑車34a、34b
より昇降台11に近接するよう両滑車支持軸31、32に1つ
ずつ取り付けられた1対の第2滑車35a、35bとを有し
ている。また、周辺部保持機構21は、フレーム10側に装
着される部材として第1、第2のワイヤ部材36、37を有
している。第1ワイヤ部材36は、図2において側縁部13
Aの左端側(一端側)の支柱10aの上端近傍に固定され
た上端固定部材41から側縁部13Aの右端側(他端側)の
支柱10aの下端近傍に固定された下端固定部材42まで掛
け渡されるとともに、その途中で図中左方の第1滑車34
aの下部と右方の第1滑車35aの上部に巻き掛けられた
ワイヤである。また、第2ワイヤ37は、第1ワイヤ36と
は逆に、側縁部13Aの左端側の支柱10aの下端近傍に固
定された下端固定部材44から側縁部13Aの右端側の支柱
10aの上端近傍に固定された上端固定部材43まで掛け渡
されるとともに、その途中で図中左方の第2滑車34bの
上部と右方の第2滑車35bの下部に巻き掛けられたワイ
ヤである。これら第1ワイヤ36および第2ワイヤ37は、
それぞれの張力によって昇降台11の図2中左右方向の傾
きを阻止できるだけの所定の引張強さを有している。
Specifically, the peripheral part holding mechanism 21 is interposed between the frame 10 and the lifting table 11 as shown in FIGS. 2 and 3, and is mounted on the lifting table 11 side as a member. A pair of pulley supporting shafts 31, 32 provided so as to project from the lifting platform 11 in parallel in the horizontal direction at both end sides of the side edge portion 13A which is one side of the lifting platform 11, and both pulley supporting shafts 31, 32. A pair of first pulleys 34a, 34b attached one by one, and first pulleys 34a, 34b
It has a pair of second pulleys 35a and 35b attached to the pulley support shafts 31 and 32 so as to be closer to the lift table 11. Further, the peripheral part holding mechanism 21 has first and second wire members 36 and 37 as members to be mounted on the frame 10 side. The first wire member 36 is shown in FIG.
From the upper end fixing member 41 fixed near the upper end of the column 10a on the left end side (one end side) of A to the lower end fixing member 42 fixed near the lower end of the column 10a on the right end side (other end side) of the side edge 13A. The first pulley 34 on the left side in the figure along with being passed over
The wire is wound around the lower part of a and the upper part of the first pulley 35a on the right side. In contrast to the first wire 36, the second wire 37 includes a lower end fixing member 44 fixed near the lower end of the column 10a on the left end side of the side edge 13A to a column on the right end side of the side edge 13A.
The wire is wound around the upper end fixing member 43 fixed near the upper end of 10a, and is wound around the upper part of the second pulley 34b on the left side and the lower part of the second pulley 35b on the right side in the middle of the wire. . The first wire 36 and the second wire 37 are
Each tension has a predetermined tensile strength enough to prevent tilting of the lift 11 in the left-right direction in FIG.

【0012】周辺部保持機構22および23は、その配設位
置が昇降台11のどの縁部(辺)に対応するかが周辺部保
持機構21と異なるだけで、それ自体の構成は周辺部保持
機構21と同様であるため、各部材に上記と同様の符合を
付して周辺部保持機構22、23についての詳細説明を省略
する。昇降駆動手段50は、図4に示すように、昇降台11
に一部に係止されたループ状のベルト51と、これを巻回
した上下一対のプーリ52、53と、両プーリ52、53の一方
を回転させるようフレーム10の支柱上端連結部10aに固
定されたモータ54と、ベルト51に係合したワイパー55、
56と、図示しないモータ駆動回路等からなる。ここで、
ワイパー55、56の一方は図2に仮想線Lで示す未硬化樹
脂液面の近傍に位置しベルト51に付着した未硬化樹脂液
を拭い取るもので、他方はそれより移動方向の前方側で
(液面より手前で)ワイヤー51に付着した塵等を除去す
るものである。この昇降駆動手段50は前記光効果樹脂の
硬化層(その積層体として立体が造形される)の厚さ分
の移動量を単位として昇降台11を昇降駆動する(この場
合、昇降台11を未硬化樹脂液中で下降させる)。なお、
この昇降駆動手段50は、昇降台11の側面部に上下方向に
向けて設けられたねじ穴部およびこれに螺合する垂直ね
じ部材等を有するものでもよいし、所定の重量を与えた
昇降台11をワイヤや複数の滑車によって水平に吊すも
の、あるいは、巻き揚げ装置等を使用するものであって
もよい。
The peripheral portion holding mechanisms 22 and 23 are different from the peripheral portion holding mechanism 21 only in which edge (side) of the lift table 11 the arrangement position corresponds to. Since it is the same as the mechanism 21, the same reference numerals are given to the respective members and the detailed description of the peripheral part holding mechanisms 22 and 23 is omitted. As shown in FIG.
A loop-shaped belt 51 that is partially locked to the upper end, a pair of upper and lower pulleys 52 and 53 around which the belt is wound, and one of both pulleys 52 and 53 are fixed to the column upper end connecting portion 10a so as to rotate. The motor 54 and the wiper 55 engaged with the belt 51,
56 and a motor drive circuit (not shown). here,
One of the wipers 55, 56 is located in the vicinity of the uncured resin liquid surface indicated by imaginary line L in FIG. 2 and wipes off the uncured resin liquid adhering to the belt 51, and the other is on the front side in the moving direction. The dust and the like attached to the wire 51 (before the liquid surface) are removed. The elevating and lowering drive means 50 elevates and lowers the elevating table 11 in units of the amount of movement corresponding to the thickness of the cured layer of the light-effect resin (a solid body is formed as a laminated body thereof) (in this case, the elevating table 11 is not Descend in cured resin liquid). In addition,
The lifting drive means 50 may have a screw hole portion provided in a vertical direction on the side surface portion of the lift table 11 and a vertical screw member that is screwed into the screw hole portion, or the like, and a lift table having a predetermined weight. It may be one in which 11 is hung horizontally by a wire or a plurality of pulleys, or one in which a hoisting device or the like is used.

【0013】回り止め用のガイド部60Aは、図2および
図5に示すように、昇降台11の下面部から突出した突出
部61と、突出部61に互いに水平方向で軸直交するよう取
り付けられてフレーム10の支柱10aに係合する一対のロ
ーラ62、63とを備えている。また、ガイド部60Bは、昇
降台11に対する設置位置が昇降台11の対角線上において
ガイド部60Aとは反対側の位置であるだけで、それ自体
の構成はガイド部60Aと同様であるため、各部材に上記
と同様の符合を付して両ガイド部60Bについての詳細説
明を省略する。
As shown in FIGS. 2 and 5, the detent guide portion 60A is attached to the protrusion 61 protruding from the lower surface of the lifting table 11 and the protrusion 61 so as to be orthogonal to each other in the horizontal direction. And a pair of rollers 62 and 63 that engage with the column 10a of the frame 10. Further, since the guide portion 60B is installed on the lift table 11 only on the opposite side of the guide portion 60A on the diagonal line of the lift table 11, the configuration of the guide portion 60B is the same as that of the guide portion 60A. The same reference numerals as above are given to the members, and the detailed description of both guide portions 60B is omitted.

【0014】このような構成を有する本実施例において
は、前記光硬化樹脂を用いた造形作業の進行に伴なって
昇降駆動手段50が作動し、昇降台11が昇降駆動される。
このとき、昇降台11はその水平面内における重心から外
れた位置で前記上方又は下方への力を受け、あるいは、
その昇降に対する抵抗力を受けるから、昇降台11にはこ
れを傾けようとするモーメントが作用する。
In this embodiment having such a structure, the elevating / lowering drive means 50 is operated along with the progress of the molding operation using the photocurable resin, and the elevating / lowering table 11 is vertically moved.
At this time, the lifting platform 11 receives the upward or downward force at a position deviated from the center of gravity in the horizontal plane, or
Since it receives a resistance against the elevation, a moment to incline the elevation platform 11 acts.

【0015】また、昇降台11に前記光硬化樹脂からなる
造形物やその他の物体が載置されると、それによっても
昇降台11を傾けようとするモーメントが作用する。この
ような場合、本実施例では、周辺部保持機構21〜23のそ
れぞれにおいて、第1、第2ワイヤ36、37が、第1滑車
34a、35aおよび第2滑車34b、35bを介して、昇降台
11に対し互いに逆向きに係合しているため、昇降台11を
傾けようとするモーメントに対し、両ワイヤ36、37の何
れかが各滑車34a、35a又は34b、35bと協働してその
張力を増加させることになり、昇降台11のどのような傾
きも少なくとも1本のワイヤ36又は/及び37がその張力
を増加させることで阻止される。すなわち、昇降台11の
左右の側縁部13A、13Bを保持する各周辺部保持機構2
1、22により昇降台11の前後方向の傾きが阻止(規制)
されるとともに、昇降台11の後縁部13Cを保持する周辺
部保持機構23によって昇降台11の左右方向の傾きが阻止
される。したがって、昇降台11が常時水平に保持され
る。
Further, when a molded article or other object made of the above-mentioned photo-curing resin is placed on the lift table 11, a moment for tilting the lift table 11 also acts due to this. In such a case, in the present embodiment, the first and second wires 36 and 37 in each of the peripheral part holding mechanisms 21 to 23 have the first pulley.
Elevating table via 34a, 35a and second pulleys 34b, 35b
Since they are engaged with each other in the opposite directions, one of the wires 36, 37 cooperates with each pulley 34a, 35a or 34b, 35b against the moment that the tilting table 11 is inclined. The tension will be increased and any tilting of the lift 11 will be prevented by at least one wire 36 or / and 37 increasing its tension. That is, each peripheral portion holding mechanism 2 that holds the left and right side edge portions 13A and 13B of the lifting table 11
Inclination in the front-back direction of the lifting platform 11 is blocked by 1 and 22 (regulated)
At the same time, the peripheral holding mechanism 23 that holds the rear edge portion 13C of the lifting table 11 prevents the lifting table 11 from tilting in the left-right direction. Therefore, the lifting table 11 is always held horizontally.

【0016】また、周辺部保持機構21、22、23はそれぞ
れ独立して昇降台11の各辺に相当する側縁部13A、13B
又は後縁部13Cを水平に保持するから、例えば昇降台11
の左右幅が大きくとも、周辺部保持機構21、22の設置間
隔を広げてその昇降台11の左右両側に配置するだけで、
昇降台11の安定した水平保持が可能になる。また、後縁
部13Cの幅寸法や側縁部13A、13Bの長さ(即ち、四角
形の一辺の長さ)が大きくとも、第1、第2ワイヤ36、
37の長さが長くなる程度で、昇降台11の大きさに関係無
く非常に簡素な構成にすることができる。したがって、
昇降台11が大型であっても、簡素な構成で昇降台11の安
定した水平保持が可能になる。
Further, the peripheral portion holding mechanisms 21, 22, 23 are independent of each other, and side edge portions 13A, 13B corresponding to the respective sides of the lifting table 11 are independently provided.
Alternatively, since the rear edge portion 13C is held horizontally, for example, the lifting table 11
Even if the left and right width of the is large, just by widening the installation intervals of the peripheral part holding mechanisms 21 and 22 and arranging them on both the left and right sides of the lifting table 11,
It is possible to stably hold the lift table 11 horizontally. In addition, even if the width dimension of the rear edge portion 13C and the length of the side edge portions 13A and 13B (that is, the length of one side of the quadrangle) are large, the first and second wires 36,
As long as the length of 37 is long, a very simple structure can be achieved regardless of the size of the lifting table 11. Therefore,
Even if the lifting table 11 is large, the lifting table 11 can be stably held horizontally with a simple configuration.

【0017】図6は、請求項2記載の発明に係る昇降台
の水平保持装置の一実施例を示すその概略構成図であ
る。本実施例では、同図にその概略の構成を示すよう
に、略台形(又は三角形でもよい)の昇降台71を図示し
ない複数の支柱の間で昇降可能に案内するとともに、互
いに所定交差角度で交差するように形成された昇降台71
の左右の側縁部73A、73B(2辺)を、上述例の周辺部
保持機構21、22と同様に構成された2つの周辺部保持機
構81、82によって保持している。すなわち、上述例と同
一の部材に同一符合を用いて説明すると、周辺部保持機
構81、82のそれぞれは、昇降台71の各側縁部73A、73B
の両端側で昇降台71から水平方向に平行に突出する1対
の滑車支持軸31、32と、両滑車支持軸31、32に1つずつ
取り付けられた1対の第1滑車34a、35aと、第1滑車
34a、35aより昇降台71に近接するよう両滑車支持軸3
1、32に1つずつ取り付けられた1対の第2滑車34b、3
5bと、各側縁部73A、73Bの一端側の支柱の上端近傍
から各側縁部73A、73Bの他端側の支柱の下端近傍まで
掛け渡されるとともにその途中で一方の第1滑車34aの
下部と他方の第1滑車35aの上部に巻き掛けられた第1
ワイヤ36と、各側縁部73A、73Bの一端側の支柱の下端
近傍から各側縁部73A、73Bの他端側の支柱の上端近傍
まで掛け渡されるとともにその途中で一方の第2滑車34
bの上部と他方の第2滑車35bの下部に巻き掛けられた
第2ワイヤ37とを具備しており、第1ワイヤ36および第
2ワイヤ37がそれぞれの張力によって前記昇降台71の傾
きを阻止することのできる所定の引張強さを有してい
る。なお、昇降台71の回り止め用のガイド部は、図示し
ていないが、上述例の回り止め用のガイド部60A、60B
と略同様な部材から構成されたものが、昇降台71の各コ
ーナー部に対応して設けられている。
FIG. 6 is a schematic configuration diagram showing an embodiment of a horizontal holding device for an elevator according to the invention as defined in claim 2. In the present embodiment, as shown in the schematic configuration of FIG. 1, a substantially trapezoidal (or triangular) lifting platform 71 is guided so as to be capable of moving up and down between a plurality of columns (not shown), and at a predetermined intersecting angle with each other. Lifting platform 71 formed to intersect
The left and right side edge portions 73A and 73B (two sides) are held by two peripheral portion holding mechanisms 81 and 82 configured similarly to the peripheral portion holding mechanisms 21 and 22 of the above-described example. That is, to explain using the same reference numerals for the same members as in the above-mentioned example, each of the peripheral part holding mechanisms 81, 82 has respective side edge parts 73A, 73B of the lifting platform 71.
A pair of sheave support shafts 31 and 32 projecting horizontally from the lift 71 at both ends of the sheave, and a pair of first sheaves 34a and 35a attached to the sheave support shafts 31 and 32, respectively. , First pulley
Both sheave support shafts 3 so that they are closer to the lift 71 from 34a, 35a
A pair of second pulleys 34b, 3 attached to 1 and 32, respectively
5b and from the vicinity of the upper end of the pillar on one end side of each side edge 73A, 73B to the vicinity of the lower end of the pillar on the other end side of each side edge 73A, 73B, and on the way of one first pulley 34a The first part wound around the lower part and the upper part of the other first pulley 35a
The wire 36 is hung from the vicinity of the lower end of the pillar on one end side of each side edge 73A, 73B to the vicinity of the upper end of the pillar on the other end side of each side edge 73A, 73B, and one second pulley 34 on the way.
The upper part of b and the second wire 37 wound around the lower part of the other second pulley 35b are provided, and the first wire 36 and the second wire 37 prevent the tilting of the lifting platform 71 by their respective tensions. It has a predetermined tensile strength that can be obtained. Although not shown, the guide portions for stopping rotation of the lift 71 are not shown, but the guide portions 60A, 60B for preventing rotation in the above-described example.
The substantially same member as the above is provided corresponding to each corner portion of the lifting platform 71.

【0018】本実施例では、昇降台71の一方の側縁部73
Aを中心にして昇降台71を傾けようとすると、側縁部73
Aとの間で所定の交差角をなす他方の側縁部73Bは、そ
の一端が他端より上又は下に位置するよう傾くことにな
る。したがって、昇降台11の両側縁部73A、73Bの交差
角がある程度大きければ、上述例の周辺部保持機構21、
22と同様に作用する2つの周辺部保持機構81、82によっ
て昇降台71のどのような傾きをも阻止することができ、
昇降台71を水平保持することができる。
In this embodiment, one side edge portion 73 of the lifting platform 71 is used.
If you try to tilt the lift 71 around A, the side edge 73
The other side edge portion 73B forming a predetermined intersection angle with A is inclined so that one end thereof is located above or below the other end. Therefore, if the crossing angles of the side edges 73A and 73B of the lifting table 11 are large to some extent, the peripheral part holding mechanism 21 of the above-mentioned example,
By the two peripheral holding mechanisms 81 and 82 which operate in the same manner as 22, it is possible to prevent any tilt of the lift 71.
The lifting platform 71 can be held horizontally.

【0019】このように本実施例においては、昇降台11
の両側縁部73A、73Bを所定角度で交差させ、周辺部保
持機構81、82のみによって昇降台71の左右方向および前
後方向の傾きを規制して昇降台71を水平保持することが
でき、装置の構成をより簡素にすることができる。な
お、上述の各実施例では昇降台11の3辺又は昇降台71の
2辺についてのみ周辺部保持機構を設ける構成となって
いたが、昇降台の各辺に対応して周辺部保持機構を設け
ることができるのは言うまでもない。また、昇降台11の
回り止め用ガイド部60A、60Bに代えて図7(a)又は同
図(b)に示すような他形式のガイド部を採用することが
できる。図7(a)の場合、回り止め用のガイド部160A
は、水平台11の下面側で昇降台11からフレーム100の支
柱101、102、103、104の何れかに近接するよう突出した
突出部161と、突出部161に設けられた一対の支軸162、1
63と、フレーム100の支柱101〜104の何れかを挟むよう
両支軸162、163に支持されたローラ164、165とを備えて
いる。ガイド部160B、160Cは昇降台11に対する設置位
置および設置方向(互いに90度向きが異なる)がガイ
ド部160Aと異なるだけで、それ自体の構成はガイド部1
60Aと同様である。また、図7(b)の場合、一対のガイ
ド部260A、260Bは突出部261、262にそれぞれ設けられ
た滑り軸受(図示していない)を介して上述例の支柱に
対応するガイドポスト105、106に軸方向移動可能に案内
されている。
As described above, in this embodiment, the lifting table 11
Both side edges 73A and 73B are crossed at a predetermined angle, and only the peripheral part holding mechanisms 81 and 82 can regulate the tilt of the lifting platform 71 in the left-right direction and the front-back direction to hold the lifting platform 71 horizontally. The configuration can be simplified. In each of the above-described embodiments, the peripheral part holding mechanism is provided only on the three sides of the lift table 11 or the two sides of the lift table 71, but the peripheral part holding mechanism is provided corresponding to each side of the lift table. It goes without saying that it can be provided. Further, instead of the rotation preventing guide portions 60A and 60B of the lifting table 11, another type of guide portion as shown in FIG. 7A or FIG. 7B can be adopted. In the case of FIG. 7A, the guide portion 160A for preventing rotation
Is a projecting portion 161 projecting from the elevating table 11 on the lower surface side of the horizontal table 11 so as to be close to any of the columns 101, 102, 103, 104 of the frame 100, and a pair of support shafts 162 provided on the projecting portion 161. , 1
63 and rollers 164 and 165 supported by both support shafts 162 and 163 so as to sandwich any of the columns 101 to 104 of the frame 100. The guide parts 160B and 160C are different from the guide part 160A only in the installation position and the installation direction (the directions are different from each other by 90 degrees) with respect to the lift table 11, and the configuration of the guide parts 160B and 160C itself is the same.
Similar to 60A. Further, in the case of FIG. 7B, the pair of guide portions 260A and 260B have guide posts 105, which correspond to the support columns of the above-described example, through slide bearings (not shown) provided on the protrusions 261 and 262, respectively. It is guided by 106 so as to be movable in the axial direction.

【0020】[0020]

【発明の効果】請求項1記載の発明によれば、昇降台を
傾けようとする力に対して各周辺部保持機構の第1ワイ
ヤ又は第2ワイヤがその張力を増加させるよう構成して
いるので、昇降台を昇降可能に保持しつつその傾きを確
実に防止することができる。さらに、各周辺部保持機構
が昇降台の周辺部を保持するようにしているので、昇降
台の大きさに関係なく構成が簡素で低コストな水平保持
装置を提供することができる。
According to the invention described in claim 1, the first wire or the second wire of each peripheral part holding mechanism increases the tension with respect to the force for inclining the elevating table. Therefore, it is possible to surely prevent the tilt while holding the lift table so that it can be lifted and lowered. Further, since each peripheral part holding mechanism holds the peripheral part of the lifting table, it is possible to provide a low-cost horizontal holding device having a simple structure regardless of the size of the lifting table.

【0021】請求項2記載の発明によれば、所定角度で
交差させた昇降台の2辺をそれぞれ前記周辺部保持機構
によって保持しているので、2つの周辺部保持機構だけ
で昇降台を水平保持することができ、装置の構成をより
簡素にすることができる。
According to the second aspect of the present invention, since the two sides of the elevating table intersecting at a predetermined angle are respectively held by the peripheral part holding mechanism, the elevating table can be leveled by only the two peripheral part holding mechanisms. It can be held, and the structure of the device can be further simplified.

【図面の簡単な説明】[Brief description of drawings]

【図1】請求項1記載の発明におけるその周辺部保持機
構の原理図である。
FIG. 1 is a principle diagram of a peripheral part holding mechanism in the invention according to claim 1;

【図2】請求項1記載の発明の一実施例を示すその右側
面図である。
FIG. 2 is a right side view showing an embodiment of the invention according to claim 1;

【図3】図2のA−A矢視断面図である。FIG. 3 is a sectional view taken along the line AA of FIG.

【図4】図3のB−B矢視図である。FIG. 4 is a view taken along the line BB of FIG.

【図5】図2のC−C矢視断面図である。5 is a cross-sectional view taken along the line CC of FIG.

【図6】請求項2記載の発明の一実施例を示すその概略
平面図である。
FIG. 6 is a schematic plan view showing an embodiment of the invention as set forth in claim 2;

【図7】図5における回り止め用ガイド部の2つの変形
態様を示す図である。
7A and 7B are views showing two modifications of the rotation stopping guide portion in FIG.

【符号の説明】[Explanation of symbols]

10 フレーム 10a 支柱 11、71 昇降台 13A、13B 側縁部(昇降台の各辺) 13C 後縁部(昇降台の各辺) 21、22、23 周辺部保持機構 31、32 滑車支持軸 34a、35a 第1滑車 34b、35b 第2滑車 36 第1ワイヤ 37 第2ワイヤ 41、43 上端固定部材 42、44 下端固定部材 50 昇降駆動手段 60A、60B、160A、160B、260A、260B 回り止め
用のガイド部 73A、73B 側縁部(交差する2辺)
10 Frame 10a Column 11, 71 Lifting platform 13A, 13B Side edge (each side of lifting platform) 13C Rear edge (each side of lifting platform) 21, 22, 23 Peripheral holding mechanism 31, 32 Pulley support shaft 34a, 35a 1st pulley 34b, 35b 2nd pulley 36 1st wire 37 2nd wire 41, 43 Upper end fixing member 42, 44 Lower end fixing member 50 Lifting drive means 60A, 60B, 160A, 160B, 260A, 260B Guide for rotation stop Part 73A, 73B Side edge (two intersecting sides)

Claims (2)

【特許請求の範囲】[Claims] 【請求項1】複数の支柱(10a)の間に略四角形の昇降台
(11)を昇降可能に案内するとともに、該昇降台(11)の少
なくとも3辺(13A、13B、13C)を少なくとも3つの周
辺部保持機構(21、22、23)により保持して、昇降台(11)
を常時水平に保持する昇降台の水平保持装置であって、 前記周辺部保持機構(21、22、23)のそれぞれが、 前記昇降台(11)の各辺の両端側で昇降台(11)から水平方
向に平行に突出するよう設けられた1対の滑車支持軸(3
1、32)と、 両滑車支持軸(31、32)に取り付けられた1対の第1滑車
(34a、35a)と、 第1滑車(34a、35a)より昇降台(11)に近接するよう両
滑車支持軸(31、32)に取り付けられた1対の第2滑車(3
4b、35b)と、 前記各辺の一端側の支柱(10a)の上端近傍から前記各辺
の他端側の支柱(10a)の下端近傍まで掛け渡されるとと
もに、その途中で該一端側の第1滑車(34a)の下部と該
他端側の第1滑車(35a)の上部に巻き掛けられた第1ワ
イヤ(36)と、 前記各辺の一端側の支柱(10a)の下端近傍から前記各辺
の他端側の支柱(10a)の上端近傍まで掛け渡されるとと
もに、その途中で該一端側の第2滑車(34b)の上部と該
他端側の第2滑車(35b)の下部に巻き掛けられた第2ワ
イヤ(37)と、 を備え、 該第1ワイヤ(36)および第2ワイヤ(37)が、 それぞれの張力によって前記昇降台(11)の傾きを阻止す
ることのできる所定の引張強さを有することを特徴とす
る昇降台の水平保持装置。
1. A lift having a substantially square shape between a plurality of columns (10a).
(11) is guided up and down, and at least three sides (13A, 13B, 13C) of the elevator (11) are held by at least three peripheral part holding mechanisms (21, 22, 23), (11)
A horizontal holding device for an elevator, which constantly holds the elevator, wherein each of the peripheral part holding mechanisms (21, 22, 23) has an elevator (11) at both ends of each side of the elevator (11). From a pair of sheave support shafts (3
1, 32) and a pair of first pulleys attached to both pulley supporting shafts (31, 32)
(34a, 35a) and a pair of second pulleys (3, 3) attached to both pulley supporting shafts (31, 32) so as to be closer to the lift table (11) than the first pulleys (34a, 35a).
4b, 35b) from the vicinity of the upper end of the pillar (10a) on one end side of each side to the vicinity of the lower end of the pillar (10a) on the other end side of each side, and in the middle of The first wire (36) wound around the lower part of the first pulley (34a) and the upper part of the first pulley (35a) on the other end side, and from the vicinity of the lower end of the column (10a) on one end side of each side It is hung over the vicinity of the upper end of the column (10a) on the other end side of each side, and in the middle of that, it is placed on the upper part of the second pulley (34b) on the one end side and the lower part of the second pulley (35b) on the other end side. A second wire (37) wound around the first wire (36) and the second wire (37), which can prevent the tilt of the lift table (11) by the respective tensions. A horizontal holding device for an elevating table, which has the following tensile strength.
【請求項2】複数の支柱の間に昇降台(71)を昇降可能に
案内するとともに、互いに所定角度で交差するよう形成
された該昇降台(71)の2辺(73A、73B)を2つの周辺部
保持機構(81、82)により保持して該昇降台(71)を常時水
平に保持する昇降台の水平保持装置であって、 前記周辺部保持機構(81、82)のそれぞれが、 前記昇降台(71)の各辺の両端側で昇降台(71)から水平方
向に平行に突出するよう設けられた1対の滑車支持軸(3
1、32)と、 両滑車支持軸(31、32)に取り付けられた1対の第1滑車
(34a、35a)と、 第1滑車(34a、35a)より昇降台(71)に近接するよう両
滑車支持軸(31、32)に取り付けられた1対の第2滑車(3
4b、35b)と、 前記各辺の一端側の支柱の上端近傍から前記各辺の他端
側の支柱の下端近傍まで掛け渡されるとともに、その途
中で該一端側の第1滑車(34a)の下部と該他端側の第1
滑車(35a)の上部に巻き掛けられた第1ワイヤ(36)と、 前記各辺の一端側の支柱の下端近傍から前記各辺の他端
側の支柱の上端近傍まで掛け渡されるとともに、その途
中で該一端側の第2滑車(34b)の上部と該他端側の第2
滑車(35b)の下部に巻き掛けられた第2ワイヤ(37)と、 を備え、 該第1ワイヤ(36)および第2ワイヤ(37)が、 それぞれの張力によって前記昇降台(71)の傾きを阻止す
ることのできる所定の引張強さを有することを特徴とす
る昇降台の水平保持装置。
2. An elevating table (71) is guided between a plurality of columns so that it can be moved up and down, and two sides (73A, 73B) of the elevating table (71) are formed so as to intersect each other at a predetermined angle. A horizontal holding device for an elevating table that is held by one peripheral part holding mechanism (81, 82) and always holds the elevating table (71) horizontally, wherein each of the peripheral part holding mechanisms (81, 82) is A pair of sheave support shafts (3) provided so as to horizontally project from the lift table (71) at both ends of each side of the lift table (71).
1, 32) and a pair of first pulleys attached to both pulley supporting shafts (31, 32)
(34a, 35a) and a pair of second pulleys (3, 3) attached to both pulley supporting shafts (31, 32) so as to be closer to the lift table (71) than the first pulleys (34a, 35a).
4b, 35b) and from the vicinity of the upper end of the pillar on the one end side of each side to the vicinity of the lower end of the pillar on the other end side of each side, and in the middle of the first pulley (34a) on the one end side. The lower part and the first end on the other end side
The first wire (36) wound around the upper portion of the pulley (35a) and the first wire (36) wound around the lower end of the pillar on one end side of each side to the vicinity of the upper end of the pillar on the other end side of each side, and On the way, the upper part of the second pulley (34b) on the one end side and the second pulley on the other end side
A second wire (37) wound around the lower portion of the pulley (35b), and the first wire (36) and the second wire (37) are inclined by the respective tensions of the lift table (71). A horizontal holding device for a lift, having a predetermined tensile strength capable of preventing
JP17730292A 1992-07-06 1992-07-06 Elevator stand horizontally holding device Pending JPH0616395A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17730292A JPH0616395A (en) 1992-07-06 1992-07-06 Elevator stand horizontally holding device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17730292A JPH0616395A (en) 1992-07-06 1992-07-06 Elevator stand horizontally holding device

Publications (1)

Publication Number Publication Date
JPH0616395A true JPH0616395A (en) 1994-01-25

Family

ID=16028624

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17730292A Pending JPH0616395A (en) 1992-07-06 1992-07-06 Elevator stand horizontally holding device

Country Status (1)

Country Link
JP (1) JPH0616395A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997004928A1 (en) * 1995-07-27 1997-02-13 Ken Yanagisawa Moving mechanism
JP2016005869A (en) * 2014-06-20 2016-01-14 武藤工業株式会社 Three-dimensional molding device, and calibration method of three-dimensional molding device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997004928A1 (en) * 1995-07-27 1997-02-13 Ken Yanagisawa Moving mechanism
CN1057245C (en) * 1995-07-27 2000-10-11 柳泽健 Moving mechanism
JP2016005869A (en) * 2014-06-20 2016-01-14 武藤工業株式会社 Three-dimensional molding device, and calibration method of three-dimensional molding device

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