JP2010088490A - Terminal operating device for fixing bedside table - Google Patents

Terminal operating device for fixing bedside table Download PDF

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JP2010088490A
JP2010088490A JP2008258527A JP2008258527A JP2010088490A JP 2010088490 A JP2010088490 A JP 2010088490A JP 2008258527 A JP2008258527 A JP 2008258527A JP 2008258527 A JP2008258527 A JP 2008258527A JP 2010088490 A JP2010088490 A JP 2010088490A
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wheel
release
caster
handle
twin
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JP5178437B2 (en
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Masuo Katada
益男 片田
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Toyovending Co Ltd
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Toyovending Co Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a terminal operating device for fixing a bedside table which can turn casters of the bedside table or the like into a locked state and a released state by one operation and can easily fix or release the bedside table. <P>SOLUTION: In a twin-wheel caster operation mechanism which simultaneously turns rotation of several twin-wheel casters arranged on the underside of the bedside table into a released state and a locked state by one operation part, the operation part comprises a handle, a release maintaining mechanism, a release button and an operation part cover. In the terminal operating device for the bedside table, for turning the rotation of the wheels into a released state, the handle is drawn upward and projected, the raised state of the handle is maintained by a locking member of the release maintaining mechanism and the release button is projected upward by the locking member. For turning the rotation of the wheels into a locked state, the release button is pushed downward to release the locking member of the handle, and the handle is pushed downward. The pushed handle and release button are covered with the operation part cover. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

本発明は、病院のベッド近傍に配置するテレビや身の回り品等を収納する床頭台等を固定する末端操作装置に関する。   The present invention relates to a terminal operation device for fixing a floor head base for storing a television set or a personal belonging placed near a hospital bed.

従来、病院等ではベッド近傍には、テレビや身の回り品等を収納する床頭台が配置され、例えば、特許文献1(特開2001-29157公報)に開示されているように、床頭台の底部の前縁部と後縁部にはそれぞれ一対の合計4個のキャスターが設けられ、患者のベッド移動等に伴って、床頭台の移動も簡単でスムースになるようにしている。
ところで、床頭台をベッド近傍の所定の位置に位置決めして固定するには、各4個のキャスターのロックレバーをONにして、各キャスターの車輪と旋回とをロックしなければならない。さもないと、患者がベッドから起き上がる際に床頭台に掴まったり、見舞いの人等が床頭台に寄りかかったりした場合に、不意に床頭台が動くことがあり、思わぬ怪我をすることもあった。
このため、看護師や患者が床頭台を病室の所定位置に配置する際には、必ず床頭台の底面の各キャスターの全てをロックしなければならず、特に、靴先で操作するにしても、通常、ロック解除にはレバーを上方にあげる操作は厄介なものであり、しかも、4箇所のキャスターの全て同様の操作をすると、なおさら厄介な作業であった。また、後日、看護師等が各キャスターのロック状態を点検する際も、床頭台の底面に配置された4個のレバー状態を看護師等が中腰になって目視して確認しなければならず、作業負担を強いるものであった。
2. Description of the Related Art Conventionally, in hospitals and the like, a floor head stand for storing a television, personal belongings, and the like is arranged near the bed. For example, as disclosed in Patent Document 1 (Japanese Patent Laid-Open No. 2001-29157), A pair of a total of four casters are provided on the front edge and the rear edge of the bottom, respectively, so that the movement of the floor table is easy and smooth as the patient moves the bed.
By the way, in order to position and fix the floor head stand at a predetermined position in the vicinity of the bed, it is necessary to turn on the lock levers of the four casters to lock the wheels and the turns of the casters. Otherwise, when the patient gets up from the bed and gets caught on the floor head, or when a visitor leans on the floor head, the floor head may move unexpectedly, causing unexpected injury. There was also.
For this reason, when a nurse or patient places the floor head in a predetermined position in the hospital room, all casters on the bottom of the floor head must be locked. However, the operation of raising the lever upward is usually troublesome for unlocking, and it is even more troublesome to perform the same operation on all four casters. In addition, when a nurse or the like checks the lock state of each caster at a later date, the nurse or the like must check the state of the four levers arranged on the bottom surface of the floor head stand. Therefore, it was a burden on the work.

ところで、病院等での床頭台のキャスターは、エレベータでの移動の際、エレベータとフロアの間の溝に落ちないように、車輪径を大きくしなければならず、実際には直径10cm程度の車輪を用い、安定した走行になるように、例えば、特許文献2(特開7-239294号公報)に開示されるような幅広(7cm程度)の双輪キャスターが用いられている。
そこで、本発明者らは、一回の操作で床頭台のキャスターをロック状態及び解除状態にでき、簡単に床頭台を固定及び解除できる床頭台固定装置として、下記特許文献3(特願2008-14903))を提供したが、必ずしも十分ではなかった。
すなわち、病院に設置する床頭台は、体力がない病人が利用することから、ベッドから立ち上がる際には、床頭台に掴まることもあり、床頭台のキャスターが解除状態であると思わぬ怪我をすることがあり、通常の設置状態では必ずがキャスターをロック状態にしておかなければならない。しかし、病院等では床頭台の移動が頻繁に行われ、多忙な看護師や付き添い人ではキャスターをロック状態にすることを忘れる場合がある。また、ロック解除が簡単に行われる構造であると、誤って、使用者である患者や付き添い人でがロック解除の操作を行ってしまうという危険性も存在する。
特開2001−29157公報 特開平7−239294号公報 特願2008−14903号
By the way, the casters of the floor heads in hospitals etc. have to increase the wheel diameter so that they do not fall into the groove between the elevator and the floor when moving by the elevator. For example, a wide (about 7 cm) twin-wheel caster as disclosed in Patent Document 2 (Japanese Patent Laid-Open No. 7-239294) is used so as to achieve stable running using wheels.
Therefore, the present inventors have disclosed the following Patent Document 3 (Patent Document 3) as a floor-head base fixing device that can lock and release a floor-head base caster by a single operation and can easily fix and release the floor-top base. Application 2008-14903)) was provided, but not always sufficient.
In other words, the floor head stand installed in the hospital is used by sick people who do not have physical strength, so when standing up from the bed, it may be gripped by the floor head stand and the casters on the floor head stand are considered to be in a released state. The caster must be locked in normal installation conditions. However, in a hospital or the like, the floor head is frequently moved, and a busy nurse or attendant may forget to lock the caster. In addition, if the structure is such that the unlocking can be easily performed, there is a risk that the patient or the attendant who is the user erroneously performs the unlocking operation.
JP 2001-29157 A JP 7-239294 A Japanese Patent Application No. 2008-14903

本発明の解決しようとする課題は、上述した先行技術のキャスター付き床頭台を固定する末端操作装置の不都合に鑑みてなされたもので、一回の操作で床頭台等のキャスターをロック状態及び解除状態にでき、簡単に床頭台を固定及び解除できる床頭台を固定する操作装置において、キャスターのロック状態及び解除状態を一目で確認でき、簡単にキャスターの操作ができ、床頭台を安全に固定することができる双輪キャスターをロックする末端操作装置を提供するものである。   The problem to be solved by the present invention was made in view of the inconvenience of the above-described prior art terminal operation device for fixing a floor-to-head platform with casters. In the operation device that fixes the floor head stand that can be fixed and released easily, and the caster can be locked and released at a glance, and the caster can be operated easily. It is an object of the present invention to provide a terminal operation device for locking a twin-wheel caster that can be securely fixed.

上記の課題を解決するために、請求項1の発明は、床頭台を固定する末端操作装置であって、床頭台の底面に配置される少なくとも複数の双輪キャスターの車輪の回転を、1箇所の操作部によって同時に解除状態及びロック状態にするキャスター操作機構において、前記操作部はハンドル部、解除維持機構、解除ボタン、及び、操作部カバーから構成され、車輪の回転を解除状態にする際には、前記ハンドル部を上方に引き上げて突出させ、該ハンドルを前記解除維持機構のロック部材によって挙げた状態を維持するとともに、該ロック部材によって前記解除ボタンを上方に突出させ、車輪の回転をロック状態にする際には、解除ボタンを下方に押し下げて、前記ハンドルの前記ロック部材を解除し、該ハンドルを押し下げるとともに、前記操作部カバーによって、押し下げられたハンドル及び解除ボタンを覆うことを特徴とする。
請求項2の発明は、請求項1に記載の床頭台を固定する末端操作装置であって、前記解除ボタンは、キャスターの解除状態を表示する解除表示ボタンとしたことを特徴とする。
請求項3の発明は、請求項1又は2に記載の床頭台を固定する末端操作装置であって、前記操作部は床頭台の側板の上端部に設けるとともに、前記操作部カバーの上端面を平坦にして、車輪の回転をロック状態にする際には前記側板の上端部をほぼ平坦にすることを特徴とする。
In order to solve the above-mentioned problems, the invention of claim 1 is a terminal operation device for fixing a floor-to-ceiling base, wherein the rotation of at least a plurality of twin-wheel casters disposed on the bottom surface of the floor-to-top base is 1 In a caster operating mechanism that is simultaneously released and locked by an operating portion at a location, the operating portion includes a handle portion, a release maintaining mechanism, a release button, and an operating portion cover, and when the wheel rotation is released. The handle portion is pulled upward and protruded to maintain the handle in the state raised by the lock member of the release maintaining mechanism, and the release button is protruded upward by the lock member to rotate the wheel. In the locked state, the release button is pushed down to release the lock member of the handle, and the handle is pushed down, The work cover, wherein the cover the depressed handle and release button.
A second aspect of the present invention is the terminal operation device for fixing the floor-top base according to the first aspect, wherein the release button is a release display button for displaying a release state of a caster.
A third aspect of the present invention is the terminal operation device for fixing the floor head base according to claim 1 or 2, wherein the operation portion is provided at an upper end portion of a side plate of the floor head base, and the top of the operation portion cover. When the end face is flattened and the rotation of the wheel is locked, the upper end portion of the side plate is substantially flattened.

請求項1の発明の床頭台を固定する末端操作装置によれば、一箇所の一回の操作で床頭台の双輪キャスターをロック状態及び解除状態にでき、簡単に床頭台を固定及び解除でき、ハンドル部(レバー)を上方に引き上げて突出するようにしたので、通常の押圧する操作とことなり、誤って、双輪キャスターのロック状態及び解除状態にすることがなく、かつ、従来のようにペダルを上にあげる操作や上に引っ張る操作が無く、無理のない操作で床頭台の双輪キャスターを固定及び解除でき、また、解除維持機構を操作しなければならないこと、操作カバーを設けることにより、誤って使用者である患者や付き添い人がロック解除の操作を行ってしまうということもない。
また、操作カバーが操作部を覆っている場合にはロック状態にあることになり、安心して、床頭台をベッド近傍に配置することができ、キャスターが解除されている危険な状態では、ハンドル部が突出した状態にあるので、床頭台から離れていてもキャスターの解除状態を一目で確認でき、床頭台が移動可能な不安定な状態であることを、注意喚起することができる。
請求項2の発明の床頭台の末端操作装置によれば、請求項1の効果の他に、危険表示としてのハンドル部に加えて、解除ボタンを双輪キャスターの解除状態を表示する解除表示ボタンとすることで、二重の危険防止表示となる。
請求項3の発明の床頭台の末端操作装置によれば、請求項1又は2の効果の他に、操作部を床頭台の側板の上端部に設けることで、見た目に違和感がなく美感が保たれると同時に、腰部近傍の高さになるので床面の双輪キャスターを固定する際に看護師等が中腰になる必要がなく操作でき、特に、床頭台の下段には冷蔵庫を収納する場合が多いが、足ではなく必ず手で操作することになるので、冷蔵庫近傍での衛生状態も維持できる。
According to the terminal operation device for fixing the floor head base of the invention of claim 1, the double wheel casters of the floor head base can be locked and released by one operation at one place, and the floor head base can be easily fixed and Since the handle portion (lever) is raised upward and protruded, it is a normal pressing operation, and there is no mistakenly brought into the locked state and the released state of the two-wheel caster. There is no operation to lift the pedal up or pull it up like this, and it is possible to fix and release the two-wheel casters on the floor head with a reasonable operation, and it is necessary to operate the release maintenance mechanism, and provide an operation cover Therefore, the patient or attendant who is the user does not accidentally perform the unlocking operation.
In addition, when the operation cover covers the operation part, it will be in the locked state, and you can safely place the floor head in the vicinity of the bed, and in the dangerous state where the casters are released, the handle Since the part is in a protruding state, the released state of the caster can be confirmed at a glance even if it is away from the floor head base, and it can be alerted that the floor head base is in an unstable state where it can move.
In addition to the effect of the first aspect, in addition to the handle portion as a danger display, the release display button for displaying the release state of the twin-wheel caster is provided. By doing so, it becomes a double danger prevention display.
According to the terminal operation apparatus of the floor head stand of the invention of claim 3, in addition to the effect of claim 1 or 2, by providing the operation portion at the upper end portion of the side plate of the floor head stand, there is no sense of incongruity in appearance and aesthetics At the same time as the waist is maintained, it is possible to operate the nurse without needing to be in the middle when fixing the double-wheel casters on the floor surface. However, since it is always operated by hand instead of feet, the hygienic condition in the vicinity of the refrigerator can be maintained.

ここで、本発明の好適な床頭台固定装置の実施例を図面に沿って説明する。
[実施例]
(キャビネット部分)
図1に示すように、病院等のベッド近傍には本発明の実施例1の床頭台1が配置され、図9に示すように、床頭台1のキャビネット2の底板21の裏の前縁部Fの両側の2箇所に、一対の双輪キャスター4(4a,4b)が取付けられ、後縁部Bの両側に位置する2箇所にも一対の双輪キャスター4(4c,4d)が取付けられている。この前縁部の一対の双輪キャスター4(4a,4b)の回転領域Z1は、底板21の外にはみ出さない位置に取付けられるが、これは患者や看護師等がキャスターに躓かないようにしたものであり、後縁部の一対の双輪キャスター4(4c,4d)は、双輪キャスター4(4c,4d)の回転領域Z2が多少底板21の外にはみ出しても、患者や看護師等がキャスターが躓く可能性は低いので、後縁部Bの一対の双輪キャスター4(4c,4d)の間隔は、床頭台がなるべく安定するように広い間隔としている。
通常、床頭台キャビネット2の上面の天板22上にはテレビ(図示せず)等を設置し、中段にはカードリーダやテレビチューナー23、財布や貴重品等を保管する簡易保管庫を収納した引き出24が設けられ、下段には小型の冷蔵庫25が収納されている。なお、底板21の裏側には図9に示すように、冷蔵庫25の放熱部分に対応して複数の通風口21bが設けられている。
床頭台1の右側板26の上端面には、4個の双輪キャスターを同時にロック状態及び解除状態にする末端操作部3が設けられていて、これを操作することにより床頭台を固定状態と移動可能状態に切り換えられる。
この末端操作部3を操作することにより、詳細には後述するが、ワイヤーを用いた操作伝達機構6を介し、4個の双輪キャスター4のそれぞれの車輪ロック機構5を操作する。この操作用のワイヤーは、自転車等のブレーキワイヤーと同等のもので、芯のインナーワイヤーとこれを被覆し両端を固定するアウターワイヤーからなるもので、大凡、この際に末端操作装置3のハンドル部(レバー)を引き挙げることにより、インナーワイヤーを引っ張り双輪キャスター4の車輪ロック機構5のロックを解除し、逆に、ハンドル部を下げて車輪ロック機構5のバネによりロックする。
Here, a preferred embodiment of the floor-head mounting apparatus of the present invention will be described with reference to the drawings.
[Example]
(Cabinet part)
As shown in FIG. 1, the floor head stand 1 according to the first embodiment of the present invention is arranged in the vicinity of a bed in a hospital or the like, and as shown in FIG. 9, in front of the bottom plate 21 of the cabinet 2 of the floor head stand 1. A pair of twin wheel casters 4 (4a, 4b) are attached to two places on both sides of the edge F, and a pair of twin wheel casters 4 (4c, 4d) are also attached to two places located on both sides of the rear edge B. ing. The rotation area Z1 of the pair of twin wheel casters 4 (4a, 4b) at the front edge is attached to a position that does not protrude from the bottom plate 21, but this prevents the patient, nurse, etc. from reaching the caster. The pair of twin-wheel casters 4 (4c, 4d) at the rear edge portion can be cast by the patient or nurse even if the rotation area Z2 of the twin-wheel casters 4 (4c, 4d) slightly protrudes from the bottom plate 21. Therefore, the distance between the pair of twin-wheel casters 4 (4c, 4d) at the rear edge B is wide so that the floor head stand is as stable as possible.
Usually, a TV (not shown) is installed on the top plate 22 on the top surface of the floor-to-ceiling cabinet 2, and a card reader, TV tuner 23, and a simple storage for storing wallets and valuables are stored in the middle. The drawer 24 is provided, and a small refrigerator 25 is accommodated in the lower stage. As shown in FIG. 9, a plurality of vent holes 21 b are provided on the back side of the bottom plate 21 so as to correspond to the heat radiation portion of the refrigerator 25.
The upper end surface of the right side plate 26 of the floor head base 1 is provided with a terminal operation section 3 for simultaneously locking and releasing the four twin wheel casters, and the floor head base is fixed by operating this. And switched to the movable state.
By operating the terminal operation unit 3, as will be described in detail later, each wheel lock mechanism 5 of the four twin wheel casters 4 is operated via an operation transmission mechanism 6 using wires. This operation wire is equivalent to a brake wire for a bicycle or the like, and is composed of a core inner wire and an outer wire that covers and fixes both ends of the wire. By pulling up the (lever), the inner wire is pulled to release the lock of the wheel lock mechanism 5 of the two-wheel caster 4, and conversely, the handle is lowered and locked by the spring of the wheel lock mechanism 5.

(キャスターの末端操作部)
以下の操作構造の詳細を説明する。
図1は、末端操作部3で4個の双輪キャスターをロック状態にした外観斜視図で、図2が解除状態にした外観斜視図であり、この末端操作部3の詳細から説明する。
先ず、4個の双輪キャスターのロックを解除した状態の図2について、その内部機構を示す図3を参照して説明すると、末端操作部3は主にハンドル部31、解除維持機構32、解除ボタン33、操作部カバー34、枠体35から構成されている。
図3において、ハンドル部31は回動軸311を中心に回動胴部312が回動し、回動胴部312の外周一部に凸部313が設けられ、この凸部313が枠体35の胴体収納部351に設けた溝部352の回動規制範囲で規制される。
回動胴部312の回動軸311の近傍の回動する部位には、操作伝達機構6の操作ワイヤー61の操作部側のタイコと呼ばれるインナーワイヤー612の末端部611を係止する係止部314が設けられ、端末部導入溝315に沿って末端部611を係止部314に係止するようにしている。ハンドル部31(正面側)には4本の指が挿入できる把持部317が設けられ、図3に示すように、ハンドル部31の把持部317に手をかけ引き上げると、係止部314も上方に回動し操作ワイヤー61の末端部611も引き上げられる。
ハンドル部31が所定位置まで引き上げられると、解除維持機構32のロック部材321(図7参照)の先端部3211が、ハンドル部31の最外周の適所に設けられたロック部材係止孔318に嵌合するように構成され、そのためにロック部材321が枠体35の回動側部316をガイドするガイド壁353に設けた滑動孔354に左右動可能に収納され、また、ロック部材321の後端部3212をバネ収納部355に設けたバネ部材322で常に押圧されている。
したがって、ハンドル部31が先端部3211がロック部材係止孔318に嵌合するまで引き上げ、このロック部材係止孔318の嵌合によってこの位置を維持することになる。すなわち、インナーワイヤー612を引っ張り上げた状態を維持することになり、結果として、双輪キャスター4内に設けたノック部材531(図16参照)を引き上げ、ノック部材531に固定された歯型542(図16参照)をキャスターの内歯車45(図16参照)の係合から開放することになり、このロック解除状態を維持することになる。
(Caster end control part)
The details of the following operation structure will be described.
FIG. 1 is an external perspective view in which four twin wheel casters are locked in the terminal operation unit 3, and FIG. 2 is an external perspective view in a released state. The terminal operation unit 3 will be described in detail.
First, FIG. 2 in a state where the locks of the four twin wheel casters are released will be described with reference to FIG. 3 showing its internal mechanism. The terminal operation unit 3 mainly includes a handle part 31, a release maintaining mechanism 32, and a release button. 33, an operation unit cover 34, and a frame body 35.
In FIG. 3, in the handle portion 31, the rotating body 312 rotates around the rotating shaft 311, and a convex portion 313 is provided on a part of the outer periphery of the rotating body 312. This is restricted by the rotation restriction range of the groove portion 352 provided in the body storage portion 351.
A locking portion that locks a terminal portion 611 of an inner wire 612 called a tie on the operation portion side of the operation wire 61 of the operation transmission mechanism 6 is provided at a rotating portion in the vicinity of the rotation shaft 311 of the rotation barrel portion 312. 314 is provided, and the end portion 611 is locked to the locking portion 314 along the terminal portion introduction groove 315. The handle portion 31 (front side) is provided with a grip portion 317 into which four fingers can be inserted. As shown in FIG. And the end portion 611 of the operation wire 61 is also lifted.
When the handle portion 31 is pulled up to a predetermined position, the distal end portion 3211 of the lock member 321 (see FIG. 7) of the release maintaining mechanism 32 is fitted into the lock member engaging hole 318 provided at an appropriate position on the outermost periphery of the handle portion 31. For this purpose, the lock member 321 is accommodated in a slide hole 354 provided in the guide wall 353 for guiding the rotation side portion 316 of the frame body 35 so as to be movable left and right, and the rear end of the lock member 321 The portion 3212 is always pressed by the spring member 322 provided in the spring accommodating portion 355.
Therefore, the handle portion 31 is pulled up until the distal end portion 3211 is fitted into the lock member locking hole 318, and this position is maintained by the fitting of the lock member locking hole 318. That is, the state in which the inner wire 612 is pulled up is maintained, and as a result, the knock member 531 (see FIG. 16) provided in the twin wheel caster 4 is pulled up and the tooth mold 542 (see FIG. 16) is released from the engagement of the caster internal gear 45 (see FIG. 16), and this unlocked state is maintained.

解除維持機構32には解除ボタン33を係合しているが、この解除ボタン33は枠体35の解除ボタン摺動孔356に嵌合し、図7(a)(b)に示すように、解除維持機構32のロック部材321の軸方向のほぼ中央には両外周に一対のピン323が設けられる。図8(a)の側面図、(b)の正面図、(c)の底面図に示すように、解除ボタン33の下部角柱部331はロック部材321が摺動可能に2股部3311になっており、2股部3311には斜めのカム長孔332が設けられ、このカム長孔332にピン323が嵌合しており、ロック部材321の先端3211は後端部3212のバネ部材322で常に押圧されロック部材係止孔318に嵌合して左側(図3)に移動すると、解除ボタン33の下部角柱部331の断面は矩形で、これを収納する枠体35に設けられた同じ断面矩形の解除ボタン摺動孔356によって回動は規制され、解除ボタン33の上端操作部333は上昇する。
この双輪キャスターを解除する状態では、図3の一点鎖線で示されるように、操作部カバー34は右側板26の上端部26aの後部に退避させており、この状態でハンドル部31が上方に引き上げられ、解除ボタン33の先端は突出した状態にある。なお、解除ボタン33は、解除表示ボタンとしてより効果的に機能させるため、危険状態を喚起するために目立つ色彩、例えば、赤色とすればよい。
A release button 33 is engaged with the release maintaining mechanism 32, and the release button 33 is fitted into the release button sliding hole 356 of the frame 35, as shown in FIGS. 7 (a) and 7 (b). A pair of pins 323 are provided on both outer circumferences at substantially the center in the axial direction of the lock member 321 of the release maintaining mechanism 32. As shown in the side view of FIG. 8A, the front view of FIG. 8B, and the bottom view of FIG. 8C, the lower prismatic part 331 of the release button 33 is formed into a fork part 3311 so that the lock member 321 can slide. The bifurcated portion 3311 is provided with an oblique cam long hole 332, and a pin 323 is fitted into the cam long hole 332, and the front end 3211 of the lock member 321 is a spring member 322 of the rear end portion 3212. When it is always pressed and fitted in the lock member locking hole 318 and moved to the left side (FIG. 3), the lower prism portion 331 of the release button 33 has a rectangular cross section, and the same cross section provided in the frame 35 that accommodates this The rotation is restricted by the rectangular release button sliding hole 356, and the upper end operation portion 333 of the release button 33 is raised.
In the state where the twin-wheel caster is released, as shown by the one-dot chain line in FIG. 3, the operation portion cover 34 is retracted to the rear portion of the upper end portion 26a of the right side plate 26, and in this state, the handle portion 31 is pulled upward. The tip of the release button 33 is in a protruding state. Note that the release button 33 may function as a release display button more effectively, and may have a conspicuous color, for example, red, in order to evoke a dangerous state.

次に、図1の4個の双輪キャスターをロックした状態について、その内部機構を図4を参照して説明すると、解除ボタン33の上端操作部333を下に押圧すると、カム長孔332のカム面に沿って、ピン323もバネ部材322に抗して移動し(図4右側方向)、嵌合ロック部材321の先端部3211は後退してハンドル部31のロック部材係止孔318から解除され、ハンドル部31は操作ワイヤー61の末端部611により下方へ引張られる。
この下方へ引張力は、キャスター内部の下方に押圧するバネ541(図16参照)によりノック部材531が下降し、リンクアーム56(図9参照)、分岐ワイヤー622、及び、操作ワイヤー61を介して生じる。この4個のバネ541による下方へ引っ張る力だけで不足の場合には、図3、4で点線で示される引張りバネ3161によって助勢してもよく、この引張りバネ3161の一端は枠体35の内部空間の底部に固着され、他端はハンドル部31の底面とに固着されている。
そして、この引張り力によって、ハンドル部31の上端面319が上端部26aの表面とほぼ同じ水準になり、図1、及び、図4の状態になる。
ここで、ハンドル部31の上端面319と、解除ボタン33の上端操作部333とが共に下降した状態で、右側板26の上端部26aの表面とほぼ同じ水準となっているので、後退している操作部カバー34を手前に移動させて、ハンドル部31と解除ボタン33とが操作できないように覆う。
Next, the internal mechanism of the four twin-wheel casters shown in FIG. 1 will be described with reference to FIG. 4. When the upper end operating portion 333 of the release button 33 is pressed downward, the cam in the cam slot 332 Along the surface, the pin 323 also moves against the spring member 322 (right side direction in FIG. 4), and the distal end portion 3211 of the fitting lock member 321 moves backward to be released from the lock member locking hole 318 of the handle portion 31. The handle portion 31 is pulled downward by the end portion 611 of the operation wire 61.
This downward pulling force is caused by the knock member 531 being lowered by the spring 541 (see FIG. 16) that presses downward inside the caster, via the link arm 56 (see FIG. 9), the branch wire 622, and the operation wire 61. Arise. When only the downward pulling force by the four springs 541 is insufficient, the tension spring 3161 indicated by the dotted line in FIGS. The other end of the space is fixed to the bottom of the handle 31.
Then, by this tensile force, the upper end surface 319 of the handle portion 31 becomes substantially the same level as the surface of the upper end portion 26a, and the state shown in FIGS. 1 and 4 is obtained.
Here, the upper end surface 319 of the handle portion 31 and the upper end operation portion 333 of the release button 33 are both lowered, and are at the same level as the surface of the upper end portion 26a of the right side plate 26. The operating unit cover 34 is moved forward so that the handle unit 31 and the release button 33 cannot be operated.

この操作部カバー34の構成と動作を主に図5、図6に沿って説明する。図5(a)(b)の操作部カバー34の図に示すように、枠体35内に前述のハンドル部31、解除維持機構32、解除ボタン33を組み立て、この枠体35に右側面を覆う外枠36と、一部上面と左側面を覆う外枠37とを取付けて完了し、これに操作部カバー34を取り付ける。
外側に位置する右側の外枠36には平行方向に段差361が設けられ、内側に位置する左側の外枠37にも平行方向に段差371が設けられ、操作部カバー34を嵌合する。
図6(a)(b)(c)に示すように、操作部カバー34は右側板341、左側板342、上板343、及び、背板344とから構成され、右側板341の下端内側には嵌合突起3411が平行方向に設けられ、同様に、左側板342の下端内側には嵌合突起3421が平行方向に設けられ、この操作部カバー34が多少弾力のある合成樹脂製であることから、先頭箇所で両嵌合突起3411,3421を拡げて、各段差361,371に嵌合する。
操作部カバー34の上板343の移動方向の先端部には矩形の切欠部3431が設けてあり、操作部カバー34でハンドル部31等を覆う際には、この切欠部3431が枠体35の上面先端部(図5の左端)に設けた矩形の段差357に嵌合し、それ以上の移動を規制する。同様に、操作部カバー34の背板344にはキャビネット2の側板26の上端を跨ぐように、一対の背板部材3441,3442が設けられ、枠体35の後部に当接してそれ以上の移動を規制する。
また、操作部カバー34が後退しすぎて脱落しないように、外枠37の適所にストッパー突部372を設け、操作部カバー34の左側板342の下部の先頭近傍の適所にストッパー係合部3422を設けている。
The configuration and operation of the operation unit cover 34 will be described mainly with reference to FIGS. As shown in the drawings of the operation unit cover 34 in FIGS. 5 (a) and 5 (b), the handle portion 31, the release maintaining mechanism 32 and the release button 33 are assembled in the frame body 35, and the right side surface is attached to the frame body 35. The outer frame 36 to be covered and the outer frame 37 to partially cover the upper surface and the left side surface are attached, and the operation unit cover 34 is attached thereto.
A step 361 is provided in a parallel direction on the right outer frame 36 located on the outer side, and a step 371 is provided in a parallel direction on the left outer frame 37 located on the inner side to fit the operation unit cover 34.
As shown in FIGS. 6A, 6B, and 6C, the operation unit cover 34 includes a right side plate 341, a left side plate 342, an upper plate 343, and a back plate 344. The fitting projection 3411 is provided in the parallel direction, and similarly, the fitting projection 3421 is provided in the parallel direction on the inner side of the lower end of the left side plate 342, and the operation portion cover 34 is made of a slightly elastic synthetic resin. Then, both the fitting protrusions 3411 and 3421 are expanded at the head portion and are fitted to the respective steps 361 and 371.
A rectangular cutout 3431 is provided at the front end of the upper plate 343 of the operation unit cover 34 in the moving direction. When the operation unit cover 34 covers the handle 31 and the like, the cutout 3431 is formed on the frame 35. It fits into a rectangular step 357 provided at the top end portion (left end in FIG. 5) to restrict further movement. Similarly, a pair of back plate members 3441 and 3442 are provided on the back plate 344 of the operation unit cover 34 so as to straddle the upper end of the side plate 26 of the cabinet 2, and contact the rear part of the frame body 35 to move further. To regulate.
In addition, a stopper projection 372 is provided at a suitable position on the outer frame 37 so that the operation section cover 34 does not fall back too far, and a stopper engaging section 3422 is disposed at a suitable position near the beginning of the lower portion of the left side plate 342 of the operation section cover 34. Is provided.

(操作伝達機構)
操作伝達機構6は、図10示すように、芯のインナーワイヤーと同軸で被覆部でもあるアウターワイヤーからロックワイヤーを用いたもので、主に操作ワイヤー61とワイヤー分岐盤62と4本の分岐ワイヤー63とから構成される。
前述した末端操作部3に取付られる操作ワイヤー61は、その末端部Aの拡大図の図11に示すように、芯のインナーワイヤー612、それを覆うアウターワイヤーである被覆部613とからなり、インナーワイヤー612の先端には円柱状の所謂タイコと呼ばれる末端部611が設けられ、被覆部613の先端には取付固定部614が設けられ、インナーワイヤー612が取付固定部614に対して、末端部611が進退可能に構成され、他方の末端部616はワイヤー分岐盤62のスライダー622に接続される。
ワイヤー分岐盤62からの4本の分岐ワイヤー63は、ほぼ同じ長さで、その1本の末端部Bの拡大図の図12に示すように、芯のインナーワイヤー632、それを覆う被覆部633からなり、ワイヤー632の先端には円柱状の末端部631が設けられ、被覆部631の先端には取付固定部634が設けられ、インナーワイヤー632が取付固定部634に対して、末端部631が進退可能に構成され、他の末端はワイヤー分岐盤62に接続される。
ワイヤー分岐機構の分岐盤は、図13(a)(b)に示すように、操作ワイヤー61と4本の分岐ワイヤー63を接続するもので、図13(a)のワイヤー分岐盤62の蓋621(図13(b))を開けた内部は、スライダー622が左右移動可能に収納される。ワイヤー分岐盤62の操作ワイヤー61側の側板623に操作ワイヤー61の取付固定部615を取付け、前記スライダー622の操作ワイヤー61側にはワイヤーの末端部616の嵌合部6221が設けられ末端部616を嵌合する。
また、ワイヤー分岐盤62の4本の分岐ワイヤー63側の側板624に分岐ワイヤー63の取付固定部635を取付け、前記スライダー622の分岐ワイヤー63側には4本のワイヤーの末端部636の嵌合部6222が設けられ末端部636を嵌合する。このようにして、操作ワイヤー61の端末部616が引っ張られると、側板623側に移動(図13:右方向)するが、スライダー622に嵌合される4個の末端部636も一括して側板624から離れるように移動(図13:左方向)する。
(Operation transmission mechanism)
As shown in FIG. 10, the operation transmission mechanism 6 uses a lock wire from an outer wire that is coaxial with the inner wire of the core and is also a covering portion, and mainly includes an operation wire 61, a wire branch board 62, and four branch wires. 63.
As shown in FIG. 11 of the enlarged view of the end portion A, the operation wire 61 attached to the end operation portion 3 is composed of a core inner wire 612 and a covering portion 613 which is an outer wire covering the core inner wire 612. A distal end portion 611 called a so-called Tyco is provided at the distal end of the wire 612, an attachment fixing portion 614 is provided at the distal end of the covering portion 613, and the inner wire 612 is connected to the attachment fixing portion 614. The other end portion 616 is connected to the slider 622 of the wire branch board 62.
The four branch wires 63 from the wire branch board 62 have substantially the same length, and as shown in FIG. 12 of an enlarged view of one end B thereof, the inner wire 632 of the core and the covering portion 633 covering it A cylindrical end portion 631 is provided at the tip of the wire 632, an attachment fixing portion 634 is provided at the tip of the covering portion 631, and the end portion 631 is connected to the inner wire 632 with respect to the attachment fixing portion 634. The other end is connected to the wire branch board 62.
As shown in FIGS. 13 (a) and 13 (b), the branch board of the wire branch mechanism connects the operation wire 61 and the four branch wires 63, and the lid 621 of the wire branch board 62 in FIG. 13 (a). Inside the opening (FIG. 13B), the slider 622 is accommodated so as to be movable left and right. An attachment fixing portion 615 of the operation wire 61 is attached to the side plate 623 on the operation wire 61 side of the wire branching plate 62, and a fitting portion 6221 of the end portion 616 of the wire is provided on the operation wire 61 side of the slider 622. Mating.
Further, the fixing and fixing portion 635 of the branch wire 63 is attached to the side plate 624 of the wire branch board 62 on the side of the four branch wires 63, and the end portion 636 of the four wires is fitted to the branch wire 63 side of the slider 622. A portion 6222 is provided to engage the end portion 636. In this way, when the terminal portion 616 of the operation wire 61 is pulled, it moves to the side plate 623 side (FIG. 13: right direction), but the four end portions 636 fitted to the slider 622 are also collectively side plates. Move away from 624 (Figure 13: left).

図14(a)の図13(a)でのa−a線断面図、図14(b)の図13(a)でのc−c線断面図に示すように、このスラダー622は4本のインナーワイヤーの末端部636の移動距離が同じでなければ、正確に4個のキャ双輪キャスターをロックすることができない。このため、スライダ622の上面の移動方向に平行な山部6223が複数設けられ、図13(b)の蓋621を嵌め込んだ側面図に示すように、山部6223を左右方向に案内する案内溝6211を蓋621に設けて、正確にスラダー622がワイヤー軸線に対して平行移動するようにしている。勿論、この逆に、平行な山部を蓋621に設け、対応する案内溝をスライダーに設けてもよい。なお、蓋621の嵌合側面には固定凸部6212はワイヤー分岐盤62の内壁に挿入固定するためのものである。
このように、操作ワイヤー61の進退移動がワイヤー分岐盤62を介して4本の分岐ワイヤー63に伝達される。なお、4本の分岐ワイヤー63及び取付固定部635は分岐盤62内では並列にしているが、これは、分岐盤62を床頭台1の底板21の裏面に付けるので、この裏面には掃除機等が入ると、分岐盤62と床面とに所定の間隔を有さなければならないので、分岐盤の厚みhもなるべく薄くしなければならないからであり、この本実施例の分岐盤62の構成であれば、取付固定部615(635)の1個分の厚さに対応すればよく、分岐盤の厚みhをより小さくすることができる。
また、操作伝達に同軸ワイヤーを用いたので、図9に示すように、床頭台の裏面の4個の双輪キャスター4の位置を自由に設定でき、また、リンク機構の組み合わせとは異なり、構造も簡単で制作費も安価で、保守も容易になる。更に、1本の操作ワイヤーを4本に分岐して用いているので、極めて簡単な構成で4個のキャスターを同時に正確にロック状態及び解除状態にでき、ワイヤー分岐機構の高さを小さく薄くできるので、床頭台の底板の裏面に設けることができる。
As shown in the cross-sectional view along line aa in FIG. 13 (a) in FIG. 14 (a) and the cross-sectional view along line cc in FIG. 13 (a) in FIG. If the movement distances of the end portions 636 of the inner wires are not the same, it is impossible to accurately lock the four cab wheels. Therefore, a plurality of ridges 6223 parallel to the moving direction of the upper surface of the slider 622 are provided, and as shown in a side view in which the lid 621 is fitted in FIG. 13B, a guide for guiding the ridges 6223 in the left-right direction. A groove 6121 is provided in the lid 621 so that the ladder 622 can be accurately translated with respect to the wire axis. Of course, conversely, a parallel peak may be provided on the lid 621 and a corresponding guide groove may be provided on the slider. A fixing convex portion 6122 is inserted and fixed to the inner wall of the wire branch board 62 on the fitting side surface of the lid 621.
Thus, the forward / backward movement of the operation wire 61 is transmitted to the four branch wires 63 via the wire branch board 62. Although the four branch wires 63 and the mounting fixing portion 635 are arranged in parallel in the branch board 62, this is because the branch board 62 is attached to the back surface of the bottom plate 21 of the floor head base 1, so that the back surface is cleaned. When a machine or the like enters, there must be a predetermined distance between the branch board 62 and the floor surface, so the thickness h of the branch board must also be made as thin as possible. If it is a structure, what is necessary is just to respond | correspond to the thickness for one of the attachment fixing | fixed part 615 (635), and the thickness h of a branch board can be made smaller.
Moreover, since coaxial wires are used for operation transmission, as shown in FIG. 9, the positions of the four twin wheel casters 4 on the back surface of the floor head can be freely set. It is simple, inexpensive to produce, and easy to maintain. Furthermore, since one operation wire is branched into four, the four casters can be accurately locked and released simultaneously with a very simple configuration, and the height of the wire branching mechanism can be made small and thin. Therefore, it can be provided on the back surface of the bottom plate of the floor head.

(キャスターの配置)
前述した図9は、床頭台1の底板21の裏面の平面図で、前縁部の両側の一対の双輪キャスター4(4a,4b)、後縁部の両側の一対の双輪キャスター4(4c,4d)が取付けられる。
これらのキャスター4の外観概略は、図15に示すようなもので、キャスター4の構成の詳細は後述するが、車輪ロック機構5の枠体51の両側に一対の車輪41a,41bがそれぞれ回転可能に軸支されており、ロック機構枠体51の上面には、キャスター4が取付枠に対して旋回可能に軸支するための旋回支持部52が設けられ、旋回支持部52の軸心Xと同軸に、上下動するノック部材531が設けられており、ノック部材531を押し下げると双輪キャスターがロックされ車輪は回転することができず、ノック部材531の押込みを解除して上方に上がると、双輪のロックが解除され、双輪が自由に回転することができる。
ところで、本実施例で使用する双輪キャスター4(4a,4b,4c,4d)は、双輪の巾が単輪よりも広いので、単輪キャスターに比べて走行安定性があり、また、双輪の回転をロックすると進行方向は勿論のこと、双輪の巾が広いことから旋回阻止でき、特に、本実施例のように4本の双輪キャスター4(4a,4b,4c,4d)での各双輪の回転をロックすると、前後左右の移動や旋回はロックされ、1箇所の双輪キャスターの固定では不十分である場合があるが、4箇所の場合はほぼ完全に床頭台1が所定の位置に固定される。
(Caster arrangement)
FIG. 9 described above is a plan view of the back surface of the bottom plate 21 of the floor head base 1, and a pair of twin-wheel casters 4 (4a, 4b) on both sides of the front edge and a pair of twin-wheel casters 4 (4c on both sides of the rear edge). 4d) is installed.
The outline of the appearance of these casters 4 is as shown in FIG. 15, and although the details of the configuration of the casters 4 will be described later, a pair of wheels 41a and 41b can rotate on both sides of the frame 51 of the wheel lock mechanism 5. A pivot support 52 is provided on the upper surface of the lock mechanism frame 51 so that the caster 4 can pivot relative to the mounting frame. A knock member 531 that moves up and down on the same axis is provided.If the knock member 531 is pushed down, the two-wheel caster is locked and the wheel cannot rotate, and if the knock member 531 is released and pushed up, Is unlocked and the twin wheels can rotate freely.
By the way, the twin-wheel casters 4 (4a, 4b, 4c, 4d) used in the present embodiment are more stable than single-wheel casters because the width of the twin wheels is wider than that of the single wheels. Locking can prevent turning because of the wide width of the twin wheels as well as the direction of travel. In particular, as in this embodiment, the rotation of each twin wheel on four twin wheel casters 4 (4a, 4b, 4c, 4d) Locking the front / rear and left / right movements and turns, fixing one twin-wheel caster may not be sufficient, but in the case of four, the floor head base 1 is almost completely fixed in place. The

(キャスター部)
本実施例のキャスターは、図15でも説明したように、ロック機構枠体51を挟んで、5cm程度の間隔を持った車輪41a,41bの双輪キャスターであり、移動時には走行は単輪キャスターに比べて走行安定性がある。また、車輪41a,41bの両車輪(双輪)がロックすると走行が出来なくなり、キャスターの旋回も制限されて、更に、本実施例のように、床頭台1の前縁部Fの両側の2箇所の双輪キャスター、及び、後端部Bの2箇所の車輪41c,41dの4個の車輪の全てが固定されると、キャスター自体の旋回を固定しなくても、車輪の固定によって床頭台1はほぼ完全に固定されることを見出し、この知見を基礎とするものである。
上記の車輪ロック機構5を、図16乃至図19に沿って更に詳しく説明する。
図16はノック部53が上方に上がって状態の図、即ち、キャスターロックが解除されたフリーな状態の図で、図16(a)は車輪ロック機構5の横断面図で、図16(b)は図16(a)のa−a線での断面図である。また、図17はノック部53がキャスター内部のバネ541により歯部542が下がった状態の図、即ち、キャスターロックがロック状態の図で、図17(a)は車輪ロック機構5の横断面図で図17(b)は図17(a)のa−a線での断面図である。
(Caster part)
As described in FIG. 15, the caster of this embodiment is a double-wheel caster of wheels 41a and 41b having a distance of about 5 cm with the lock mechanism frame 51 interposed therebetween. Running stability. Further, when both wheels (double wheels) of the wheels 41a and 41b are locked, the vehicle cannot travel and the turning of the caster is restricted. Further, as in this embodiment, the two on both sides of the front edge F of the floor head stand 1 are restricted. When all four wheels of the two wheels 41c and 41d at the two rear wheels B at the rear end B are fixed, it is possible to fix the floor head by fixing the wheels without fixing the turning of the caster itself. 1 is found to be almost completely fixed and is based on this finding.
The wheel lock mechanism 5 will be described in more detail with reference to FIGS.
FIG. 16 is a view showing a state in which the knock portion 53 is raised upward, that is, a view showing a free state in which the caster lock is released. FIG. 16A is a cross-sectional view of the wheel lock mechanism 5, and FIG. ) Is a cross-sectional view taken along line aa in FIG. FIG. 17 is a view showing a state in which the knocking portion 53 is lowered by the spring 541 inside the caster, that is, the caster lock is in a locked state. FIG. 17A is a cross-sectional view of the wheel lock mechanism 5. FIG. 17B is a cross-sectional view taken along line aa in FIG.

図16(a)(b)に示すように、車輪ロック機構5の枠体51内には、キャスター取付金具55に対して双輪キャスター4が旋回可能なように旋回支持部52が軸支され、旋回支持部52の内側に上下動するノック部53が設けられ、ノック部53に続いて車輪歯噛合ロック部54がバネ541を介して連結され、図17(a)に示すように、車輪歯噛合ロック部54はノック部53のノック部材531が押圧された場合に、歯部542が車輪部41の内側の内歯車45に嵌合して、車輪41a,41bの回転を阻止する。
ここで、各部の構成を更に詳細に説明するが、先ず、枠体51はプラスチックで成型されたもので、図18及び図19に示すように、中心に車輪軸受部511が設けられ、図18(a)の枠体51の左側には、旋回支持部52及びノック部53(図16参照)の円筒型の取付部512と収納部513が配置され、取付部512のキャスター取付金具55に接触する部分は双輪キャスター4の旋回をスムーズにするための突出輪514が設けられ、車輪軸受部511の下側には上下動する車輪歯噛合ロック部54及びバネ541を収納する収納部515が配置されている。また、収納部513の下部開放口には、図19(a)(b)に示すような蓋部材516を設けるが、ノック部53のノック部材531の下端部に車輪歯噛合ロック部54の基部544をボルト535(図16(a))で固定後に蓋をする構成で、上方に爪部516aが設けられ、下方にヒンジ部516bが設けられ、ヒンジ部516bを収納部513の下部の装着溝513bに装着し、相互のピン孔516cと513cにピン517を挿入して、ピン517を回動中心とした蓋を構成する。
そして、車輪歯噛合ロック部54をノック部材531にボルト535で固定する作業を終えた後に、爪部516aを収納部513の外周側の下部嵌合孔513aに嵌合して蓋をする。
As shown in FIGS. 16A and 16B, a turning support 52 is pivotally supported in the frame 51 of the wheel lock mechanism 5 so that the two-wheel caster 4 can turn with respect to the caster mounting bracket 55. A knock part 53 that moves up and down is provided inside the turning support part 52, and a wheel tooth meshing lock part 54 is connected via a spring 541 following the knock part 53. As shown in FIG. When the knock member 531 of the knock portion 53 is pressed, the meshing lock portion 54 is engaged with the internal gear 45 inside the wheel portion 41 to prevent the wheels 41a and 41b from rotating.
Here, the configuration of each part will be described in more detail. First, the frame body 51 is molded from plastic, and as shown in FIGS. 18 and 19, a wheel bearing part 511 is provided at the center, and FIG. On the left side of the frame 51 in (a), a cylindrical mounting portion 512 and a storage portion 513 of the swivel support portion 52 and the knock portion 53 (see FIG. 16) are arranged and contact the caster mounting bracket 55 of the mounting portion 512. The projecting wheel 514 for smooth turning of the twin-wheel caster 4 is provided at the portion to be operated, and the lower part of the wheel bearing part 511 is provided with a wheel tooth meshing lock part 54 that moves up and down and a storage part 515 that houses the spring 541. Has been. Further, a lid member 516 as shown in FIGS. 19 (a) and 19 (b) is provided at the lower opening of the storage portion 513. The base portion of the wheel tooth engagement lock portion 54 is provided at the lower end portion of the knock member 531 of the knock portion 53. 544 is secured with a bolt 535 (FIG. 16 (a)) and then the lid is closed. A claw portion 516a is provided on the upper side, a hinge portion 516b is provided on the lower side, and the hinge portion 516b is attached to a lower mounting groove of the storage portion 513. The lid is mounted on 513b and the pin 517 is inserted into the mutual pin holes 516c and 513c to form a lid with the pin 517 as the rotation center.
Then, after the operation of fixing the wheel tooth meshing lock portion 54 to the knock member 531 with the bolt 535 is finished, the claw portion 516a is fitted into the lower fitting hole 513a on the outer peripheral side of the storage portion 513 to cover it.

(旋回支持部及びノック部)
次に、図18での取付部512と収納部513に装着する旋回支持部52とノック部材531について説明する。
図16,17に示すように、旋回支持部52は金属製の円筒(パイプ)で、旋回支持部52の先端は予め外周方向に広がった取付縁部521が形成され 旋回補助ワッシャー522を挿入して取付縁部521をキャスター取付金具55の取付孔551に回動自在に係合される。そして下からノック部材531を挿入した後、最後に収納部513の内側に出た後端を外側から軸用スナップリング523を嵌め込んで、旋回支持部52を枠体51のピン孔514aに横ピン518で固定するとともに、枠体51をキャスター取付金具55に対して回動自在に取り付ける。
旋回支持部52は、キャスターの旋回軸を構成するとともに、ノック部53を収納するが、このノック部53について図16、17に沿って説明するが、ノック部53は、ノック部材531、上端近傍のリンク用ピン孔532、下端近傍の固定縁533、ネジ部534、及び、ボルト535から構成される。
ノック部53のリンク用ピン孔532にはピン568が嵌合し、このピン568は、後述する分岐ワイヤー63により操作されるリンクアーム56のアーム566のカム孔を構成するピン長孔567(図20)に移動可能に嵌合される。更に、このノック部53は下端には固定縁533、ネジ部534が設けられ、このネジ部534に車輪歯噛合ロック部54を挿入してボルト535で固定縁533に車輪歯噛合ロック部54を締め付け強固に固定する。
(Swivel support part and knock part)
Next, the turning support part 52 and the knocking member 531 mounted on the mounting part 512 and the storage part 513 in FIG. 18 will be described.
As shown in FIGS. 16 and 17, the turning support portion 52 is a metal cylinder (pipe), and the tip end of the turning support portion 52 is formed with a mounting edge portion 521 that extends in the outer peripheral direction in advance, and a turning assist washer 522 is inserted. Thus, the mounting edge portion 521 is rotatably engaged with the mounting hole 551 of the caster mounting bracket 55. Then, after inserting the knock member 531 from below, the shaft snap ring 523 is fitted from the outside to the rear end that finally comes out of the storage portion 513, and the swivel support portion 52 is laterally inserted into the pin hole 514a of the frame 51. While fixing with the pin 518, the frame 51 is rotatably attached to the caster mounting bracket 55.
The turning support portion 52 constitutes the turning shaft of the caster and accommodates the knock portion 53. The knock portion 53 will be described with reference to FIGS. 16 and 17, but the knock portion 53 includes the knock member 531 and the vicinity of the upper end. Link pin hole 532, fixed edge 533 near the lower end, screw portion 534, and bolt 535.
A pin 568 is fitted into the link pin hole 532 of the knock portion 53, and this pin 568 is a pin long hole 567 (see FIG. 5) constituting a cam hole of the arm 566 of the link arm 56 operated by a branch wire 63 described later. 20) is movably fitted. Further, the knock portion 53 is provided with a fixed edge 533 and a screw portion 534 at the lower end, and a wheel tooth meshing lock portion 54 is inserted into the screw portion 534 and the wheel tooth meshing lock portion 54 is secured to the fixed edge 533 with a bolt 535. Tighten firmly.

(車輪部及び車輪歯噛合ロック部)
基部544は、図16、17に示すように、基部544の断面二段形状(Z形状)の下段の歯型基部543が二股に構成され、図22に示すように、車輪歯噛合ロック部54は両側に歯型部543とその下端面に3本の下向きに一対の歯部542が設けられ、歯型基部543の上面546のほぼ中央部にはバネ係合部545には下側に押圧するバネ541が設けられ、常に下方に押し下げる構成になっている。
したがって、車輪歯噛合ロック部54の歯型基部543は、常に、歯型基部543の上面に設けられたバネ541によって下側に押圧され下降するようになっており、床頭台をベッド近傍に設置した通常の場合は、歯型基部543の両脇の下面に設けられた歯部542はバネ541によって各双輪キャスター4の内歯車45に嵌合して、双輪キャスター4の回転を阻止し、ロック状態になり床頭台の移動を阻止して移動を不可能にしている。なお、車輪歯噛合ロック部54の上下動は、枠体51に設けた車輪歯噛合ロック部54の収納部の側壁51aが案内部を構成しており、側壁51a(図23参照)に沿って降下・上昇する。
一方、双輪キャスター4の片方の車輪部41は、図23に示すように、車輪軸42は、枠体51の車輪軸受部511に回転自在に軸支され、車輪部41車輪軸固定部43に固定される(車輪軸固定部43は、車輪を回転自在に軸支する構成でもよい。)。車輪部41の外輪44はゴム製で振動を吸収し走行を滑らかにし雑音を軽減するとともに、床へのグリップを強くしている。
また、双輪キャスター4の車輪部41の内側の外輪近傍には、車輪軸に同心の内歯車45が形成され、車輪軸固定部43が下降した際には、内歯車45に歯部542が噛み合い車輪部41の回転を阻止する。
なお、車輪歯噛合ロック部54の3本の歯部542の中央の歯の高さy1は、両脇の歯の高さy2,y3よりも高くしてある。これは、先ず中央の歯が内歯車45に嵌合し、その後に両脇の歯が嵌合するようにしているので、嵌合がスムーズで且つ嵌合の強度も大きく保たれる。
(Wheel part and wheel tooth meshing lock part)
As shown in FIGS. 16 and 17, the base portion 544 includes a lower tooth-type base portion 543 having a two-stage cross-section (Z shape) of the base portion 544, and a wheel tooth meshing lock portion 54 as shown in FIG. 22. Is provided with a tooth part 543 on both sides and a pair of three downward tooth parts 542 on the lower end surface thereof, and the spring engaging part 545 is pressed downward on the center of the upper surface 546 of the tooth base 543. The spring 541 is provided so as to be always pushed downward.
Therefore, the tooth base 543 of the wheel tooth meshing lock part 54 is always pressed downward by the spring 541 provided on the upper surface of the tooth base 543 so that the floor head is placed near the bed. In the normal case of installation, the tooth portions 542 provided on the lower surfaces of both sides of the tooth base 543 are fitted to the internal gear 45 of each twin wheel caster 4 by the spring 541 to prevent the rotation of the twin wheel caster 4 and lock it. It becomes a state and prevents the movement of the floor head stand and makes the movement impossible. In addition, the vertical movement of the wheel tooth meshing lock part 54 is such that the side wall 51a of the storage part of the wheel tooth meshing lock part 54 provided on the frame 51 constitutes a guide part, and along the side wall 51a (see FIG. 23). Descent and rise.
On the other hand, as shown in FIG. 23, one wheel portion 41 of the twin-wheel caster 4 has a wheel shaft 42 rotatably supported by a wheel bearing portion 511 of a frame 51, and a wheel portion 41 and a wheel shaft fixing portion 43. The wheel shaft fixing portion 43 may be configured to rotatably support the wheel. The outer ring 44 of the wheel portion 41 is made of rubber and absorbs vibrations, smoothes running, reduces noise, and strengthens the grip to the floor.
Further, a concentric inner gear 45 is formed on the wheel shaft in the vicinity of the outer ring inside the wheel portion 41 of the twin-wheel caster 4, and when the wheel shaft fixing portion 43 is lowered, the tooth portion 542 is engaged with the inner gear 45. The rotation of the wheel portion 41 is prevented.
The tooth height y1 at the center of the three tooth portions 542 of the wheel tooth meshing lock portion 54 is higher than the tooth heights y2 and y3 on both sides. This is because the center tooth is first fitted into the internal gear 45 and the teeth on both sides are then fitted, so that the fitting is smooth and the strength of the fitting is kept large.

(キャスター取付金具とリンクアーム)
図16、17におけるキャスター取付金具55とリンクアーム56について、図20及び図21に沿って、更に詳細に説明する。
端末操作部3のハンドル部31を上方に挙げる操作によって、操作ワイヤー61が引っ張られ、ワイヤー分岐盤62によって4本の分岐ワイヤー63も引っ張られる。更に、この各分岐ワイヤーのインナーワイヤー632が引っ張られるが、これをノック部53の動きに変換するのがキャスター取付金具55に装着されたリンクアーム56である。
図20に示すように、リンクアーム56は回転軸561を中心にして回動するL字形の2のアームで、片方のアーム562の先端近傍にはインナーワイヤー632の末端部631(図12参照)を係止する係止部563が設けられ、この係止部563はインナーワイヤー632と末端部631を係止するための横溝564と縦溝565が設けられる。他方のアーム566は二股で、その二股の間にノック部材531の先端が回動自在に嵌合され、ノック部材531の先端近傍にはノック部材531の先端のリンク用ピン孔532に対応するピン長孔567が設けられ、このピン長孔567とノック部材531のリンク用ピン孔532とにピン568で貫通する。
このリンクアーム56はキャスター取付金具55に取り付けられるが、キャスター取付孔551を底部552に設けたキャスター取付金具55は、床頭台1の底板21の裏面に固定する固定部553が両端に設けられ、リンクアーム56の回転軸561が両側板554の端軸受部555に軸支され、分岐ワイヤー63の取付固定部634(図12)を取付孔556に取付け、4本の双輪キャスターでの回転取付固定部634と末端部631との間隔をボルト557により調整する調整板558が取付られている。
(Caster mounting bracket and link arm)
The caster mounting bracket 55 and the link arm 56 in FIGS. 16 and 17 will be described in more detail with reference to FIGS.
The operation wire 61 is pulled by the operation of raising the handle portion 31 of the terminal operation unit 3, and the four branch wires 63 are also pulled by the wire branch board 62. Further, the inner wire 632 of each branch wire is pulled, and it is the link arm 56 attached to the caster mounting bracket 55 that converts this into movement of the knock portion 53.
As shown in FIG. 20, the link arm 56 is an L-shaped two arm that rotates about a rotation shaft 561, and the distal end 631 of the inner wire 632 is located near the tip of one arm 562 (see FIG. 12). The locking portion 563 is provided with a horizontal groove 564 and a vertical groove 565 for locking the inner wire 632 and the end portion 631. The other arm 566 is bifurcated, and the tip of the knock member 531 is rotatably fitted between the two forks, and the pin corresponding to the link pin hole 532 at the tip of the knock member 531 is located in the vicinity of the tip of the knock member 531. A long hole 567 is provided, and the pin long hole 567 and the link pin hole 532 of the knock member 531 penetrate through the pin 568.
The link arm 56 is attached to the caster mounting bracket 55. The caster mounting bracket 55 having the caster mounting hole 551 in the bottom portion 552 is provided with fixing portions 553 that are fixed to the back surface of the bottom plate 21 of the floor head base 1 at both ends. The rotation shaft 561 of the link arm 56 is pivotally supported by the end bearing portions 555 of the both side plates 554, and the mounting fixing portion 634 (FIG. 12) of the branch wire 63 is mounted in the mounting hole 556. An adjusting plate 558 for adjusting the distance between the fixing portion 634 and the end portion 631 by a bolt 557 is attached.

(キャスターのロック及びロック解除の作動)
本実施例の床頭台を固定する末端操作装置は、以上のような構成であるので次のように作動する。
[双輪キャスターのロック状態]
これは、床頭台をベッドの近傍に配置した通常の状態で、ハンドル部31と解除ボタン33とが共に下方に位置し、これらが操作カバー34に覆われ、床頭台の側板26とほぼ同等の高さにあり、操作ワイヤー61は結果的キャスター内のバネ541によって歯部542をキャスターの内歯車45に嵌合させるとともに、バネ541にノック部材531も押されて、分岐ワイヤー63によって引っ張られた状態にある。この場合の状態は長時間に亘るが、ハンドル部31を常に引っ張る状態に維持する必要がないので、各ワイヤーは緊張状態にはなく、経年で伸びるようなことがなく、装置の保守も容易になる。
[双輪キャスターのロック解除状態]
この場合には、床頭台を移動する状態で、操作カバー34を後退させ、ハンドル部31を挙げて解除ボタン33を突出させ、操作ワイヤー61を引っ張り上げて緊張状態にし、分岐ワイヤー63によってノック部材531を上方に引っ張り、結果的キャスター内のバネ541に抗し、歯部542をキャスターの内歯車45から開放する。したがって、ハンドル部31を挙っている状態では、双輪キャスターのロック解除状態にあり、床頭台は移動可能となる。
(Caster lock / unlock operation)
Since the terminal operating device for fixing the floor head base of this embodiment is configured as described above, it operates as follows.
[Locking state of twin wheel casters]
This is a normal state in which the floor head base is arranged in the vicinity of the bed, and the handle portion 31 and the release button 33 are both positioned below, and these are covered by the operation cover 34, and are substantially the same as the side plate 26 of the floor head base. The operation wire 61 has the tooth 542 fitted to the caster internal gear 45 by the spring 541 in the caster as a result, and the knock member 531 is also pushed by the spring 541 and pulled by the branch wire 63. It is in the state that was. Although the state in this case lasts for a long time, it is not necessary to keep the handle portion 31 in a constantly pulled state, so each wire is not in a tension state, does not stretch over time, and maintenance of the device is easy. Become.
[Unlocked condition of twin wheel caster]
In this case, with the floor head moved, the operation cover 34 is retracted, the handle 31 is lifted to release the release button 33, the operation wire 61 is pulled up into a tension state, and the branch wire 63 is knocked. The member 531 is pulled upward, resulting in the teeth 542 being released from the caster's internal gear 45 against the spring 541 in the caster. Therefore, in the state where the handle portion 31 is raised, the twin wheel caster is in the unlocked state, and the floor head can be moved.

本実施例は以上の説明したような構成であるので、床頭台1と側板上端26aのハンドル部31の一箇所の一回持ち上げる操作で床頭台1の4個の双輪キャスター4をロック状態及び解除状態にでき、簡単に床頭台1を固定及び解除でき、ハンドル部31を上方に引き上げて突出するようにしたので、通常の押圧する操作と異なり、誤って、キャスターのロック状態及び解除状態とすることがなく、かつ、従来のようにペダルを上にあげる操作や直接上に引っ張る操作が無く、無理のない操作で床頭台のキャスターを固定及び解除でき、また、解除維持機構32の解除ボタン33を操作しなければならないこと、操作カバー34を設けることにより、誤って使用者である患者や付き添い人などが双輪キャスターのロック解除の操作を行ってしまうということもない。
また、操作カバー34が操作部を覆っている場合には双輪キャスターがロック状態にあることになり、安心して、床頭台1をベッド近傍に配置することができ、双輪キャスターが解除されている危険な状態では、ハンドル部31が突出した状態にあるので、床頭台1から離れていても双輪キャスターの解除状態を一目で確認でき、床頭台が移動可能な不安定な状態であることを、注意喚起することができる。
また、危険表示としてハンドルに加えて、解除ボタンをキャスターの解除状態を表示する解除表示ボタンとすることで、二重の危険防止表示となる。
更に、操作部を床頭台1の側板26の上端部に設けたので、見た目に違和感がなく美感が保たれると同時に、腰部近傍の高さになるので床面の双輪キャスター4を固定する際に看護師等が中腰になる必要もなく操作でき、特に、床頭台1の下段には冷蔵庫25を収納する場合が多いが、足ではなく必ず手で操作することになるので、冷蔵庫25近傍での衛生状態も維持できる。
更に、ワイヤーを用いた操作伝達機構としたので、リンク機構の組み合わせと異なり、構造も簡単で制作費も安価で、部品点数が少ないこといから保守も容易になり、1本の操作ワイヤーを4本に分岐して用いているので、極めて簡単な構成で4個のキャスターを同時に正確にロック状態及び解除状態にでき、ワイヤ分岐機構の高さを小さく薄くできるので、床頭台の底板の裏面に設けることができる。
なお、本発明の特徴を損なうものでなければ、上記の各実施例に限定されるものでないことは勿論である。
Since the present embodiment is configured as described above, the four twin-wheel casters 4 of the floor head base 1 are locked by the operation of lifting the floor head base 1 and the handle 31 of the side plate upper end 26a once. It can be released and can be easily fixed and released, and the handle 31 is lifted upward so that it protrudes. Unlike the normal pressing operation, the caster is locked and released by mistake. There is no state, and there is no operation to raise the pedal or pull it directly up as in the past, and the caster on the floor head can be fixed and released with reasonable operation, and the release maintaining mechanism 32 The release button 33 must be operated, and the provision of the operation cover 34 may cause an accidental operation of unlocking the two-wheel caster by a patient or attendant who is a user. .
In addition, when the operation cover 34 covers the operation section, the two-wheel caster is in a locked state, and the floor head 1 can be placed in the vicinity of the bed with peace of mind, and the two-wheel caster is released. In a dangerous state, the handle 31 is in a protruding state, so even if it is away from the floor head base 1, the released state of the two-wheel caster can be confirmed at a glance, and the floor head base is in an unstable state in which the floor head base can move. Can be alerted.
Further, in addition to the handle as the danger display, the release button is a release display button for displaying the release state of the caster, thereby providing a double danger prevention display.
Furthermore, since the operation unit is provided at the upper end portion of the side plate 26 of the floor head stand 1, the appearance is not strange and the aesthetic sense is maintained, and at the same time, the height near the waist is fixed, so that the twin wheel casters 4 on the floor surface are fixed. It is possible to operate without the need for nurses to be in the middle, especially when the refrigerator 25 is often stored in the lower part of the floor head 1, but since it is always operated by hand instead of feet, the refrigerator 25 Hygienic conditions in the vicinity can be maintained.
Furthermore, since the operation transmission mechanism using wires is used, unlike the combination of link mechanisms, the structure is simple, the production costs are low, and the number of parts is small, so maintenance is easy and 4 operation wires are required. Since it is branched into books, the four casters can be locked and released accurately at the same time with an extremely simple configuration, and the height of the wire branching mechanism can be made small and thin. Can be provided.
Of course, the present invention is not limited to the above-described embodiments as long as the features of the present invention are not impaired.

本発明の実施例の床頭台を固定する末端操作装置の双輪キャスターをロックした状態の外観斜視図、The external appearance perspective view of the state which locked the twin wheel caster of the end operation device which fixes the floor head stand of the example of the present invention, 図1の双輪キャスターをロック解除した状態の末端操作部の拡大斜視図、FIG. 3 is an enlarged perspective view of the end operation unit in a state where the twin wheel caster of FIG. 1 is unlocked; 双輪キャスターのロックを解除した状態の末端操作部の内部機構の正面図、The front view of the internal mechanism of the end operation part in the state where the lock of the twin-wheel caster is released, 図3でのロックした状態の末端操作部の内部機構の正面図、The front view of the internal mechanism of the terminal operation part of the locked state in FIG. 図5(a)は操作部カバーの側面図、図5(b)はその正面図、5A is a side view of the operation unit cover, FIG. 5B is a front view thereof, 図6(a)は操作部カバーの側面図、(b)はその上面図、(c)はその正面図、6A is a side view of the operation unit cover, FIG. 6B is a top view thereof, FIG. 6C is a front view thereof, 図7(a)は解除維持機構の側面図、(b)はその上面図、FIG. 7A is a side view of the release maintaining mechanism, FIG. 7B is a top view thereof, 図8(a)は解除ボタンの側面図、(b)その正面図、(c)その底面図、8 (a) is a side view of the release button, (b) a front view thereof, (c) a bottom view thereof, 図1の床頭台の底板裏面の平面図、FIG. 1 is a plan view of the bottom surface of the floor head of FIG. 図1の操作伝達機構の全体の構成図、1 is an overall configuration diagram of the operation transmission mechanism of FIG. 図10のA部の操作ワイヤーの拡大分解図、FIG. 10 is an enlarged exploded view of the operation wire in part A of FIG. 図10のB部の分岐ワイヤーの拡大分解図、FIG. 10 is an enlarged exploded view of the branch wire in part B of FIG. 図13(a)は図10の分岐盤の内部の正面図、図13(b)は図13(a)のb−b線での分岐盤に蓋をした状態の断面図、13A is a front view of the inside of the branch board of FIG. 10, FIG. 13B is a cross-sectional view of the branch board taken along line bb of FIG. 図14(a)は分岐盤内のスライダーの図13(a)a−a線での断面図、図14(b)は図13(a)c−c線での断面図、14 (a) is a cross-sectional view of the slider in the switchboard taken along line 13 (a) a-a, FIG. 14 (b) is a cross-sectional view taken along line 13 (a) c-c, 図1の双輪キャスターの概略の外観斜視図、FIG. 1 is a schematic external perspective view of the twin-wheel caster of FIG. ロック解除状態の双輪キャスターの内部の図で、図16(a)はノック部材が上がった双輪キャスターのロック解除の状態の正面透視図、図16(b)はノック部材その側面透視図、FIG. 16 (a) is a front perspective view of the unlocked state of the twin wheel caster with the knock member raised, and FIG. 16 (b) is a side perspective view of the knock member. ロック状態の図16の双輪キャスターの内部の図で、図17(a)はノック部材を下がったロックの状態の正面透視図、図10(b)はノック部材その側面透視図FIG. 17 (a) is a front perspective view of the locked state with the knock member lowered, and FIG. 10 (b) is a side perspective view of the knock member. 図16、図17のロック機構枠体の図で、図18(a)はその正面図、図18(b)はその側面図、16 and 17 are views of the lock mechanism frame, in which FIG. 18 (a) is a front view thereof, FIG. 18 (b) is a side view thereof, 同上ロック機構枠体の蓋部材の図で、図19(a)はその正面図、図19(b)はその側面図、FIG. 19 (a) is a front view thereof, FIG. 19 (b) is a side view thereof, and FIG. リンクアームの図で、図20(a)は正面図、図20(b)は側面図、図20(c)は上面図、FIG. 20 (a) is a front view, FIG. 20 (b) is a side view, FIG. 20 (c) is a top view, and FIG. キャスター取付金具、リンクアームを組み立てた斜視図、Caster mounting bracket, perspective view assembled link arm, 車輪歯噛合ロック部の斜視図、The perspective view of a wheel tooth meshing lock part, 図16、図17の双輪キャスターの一方の車輪部の図で、図23(a)はその正面図、図23(b)はその側面図である。FIG. 23 is a front view of one of the wheel portions of the twin-wheel casters of FIGS. 16 and 17, and FIG. 23 (b) is a side view thereof.

符号の説明Explanation of symbols

1・・床頭台、
2・・キャビネット、
21・・底板、21a・・縁部、21b・・通風口、22・・天板、
23・・カードリーダやテレビチューナー、24・・引き出、25・・冷蔵庫、
26・・右側板、26a・・上端部、
3・・末端操作部、
31・・ハンドル部、311・・回動軸、312・・回動胴部、
313・・凸部、314・・係止部、
315・・端末部導入溝、316・・回動側部、3161・・引張りバネ、
317・・把持部、318・・ロック部材係止孔、319・・上端面、
32・・解除維持機構、321・・ロック部材、3211・・先端部、3212・・後端部、
322・・バネ部材、323・・ピン、
33・・解除ボタン、331・・下部角柱部、3311・・2股部、332・・カム長孔、
333・・上端操作部、
34・・操作部カバー、341・・右側板、3411,3421・・嵌合突起、
3422・・ストッパー係合部、342・・左側板、
343・・上板、3431・・切欠部、344・・背板、3441,3442・・背板部材、
35・・枠体、351・・胴体収納部、352・・溝部、353・・ガイド壁、
354・・滑動孔、355・・バネ収納部、356・・解除ボタン摺動孔、357・・段差、
36,37・・外枠、361,371・・段差、372・・ストッパー突部、
4,4a,4b,4c,4d・・双輪キャスター、41・・車輪部、41a,41b・・車輪、
42・・車輪軸、43・・車輪軸固定部、44・・外輪、45・・内歯車、
5・・車輪ロック機構、
51・・ロック機構枠体、511・・車輪軸受部、512・・取付部、
513,515・・収納部、513a・・嵌合孔、513b・・装着溝、513c・・ピン孔、
514・・突出輪、514a・・ピン孔、
516・・蓋部材、516a・・爪部、516b・・ヒンジ部、
516c・・ピン孔、517・・ピン、518・・横ピン、
52・・旋回支持部、521・・取付縁部、522・・旋回補助ワッシャー、
523・・軸用スナップリング、
53・・ノック部、531・・ノック部材、
532・・リンク用ピン孔、533・・固定縁、534・・ネジ部、535・・ボルト、
54・・車輪歯噛合ロック部、541・・バネ、542・・歯部、543・・歯型基部、
544・・基部、545・・バネ係合部、546・・歯型基部上面、547・・嵌合孔、
55・・キャスター取付金具、551・・取付孔、552・・底部、554・・両側板、
555・・端軸受部、557・・ボルト、
56・・リンクアーム、561・・回転軸、562・・アーム、
563・・係止部、564・・横溝、565・・縦溝、
566・・アーム、567・・ピン長孔、568・・ピン、
6・・操作伝達機構、61・・操作ワイヤー、
611,616,631,636・・末端部(タイコ)、612,632・・インナーワイヤー、
613,633・・被覆部(アウターワイヤー)、614,615,634,635・・取付固定部、
62・・ワイヤー分岐盤、621・・蓋、6211・・案内溝、6212・・固定凸部、
622・・スライダー、6221,6222・・嵌合部、6223・・山部、
623,624・・側板、
63・・分岐ワイヤー
1 .. Floor head stand,
2 ・ Cabinet,
21 .... Bottom plate, 21a ... Edge, 21b ... Ventilation port, 22 .... Top plate,
23..Card reader and TV tuner, 24..Drawer, 25..Refrigerator,
26 ・ ・ Right-side plate, 26a ・ ・ Upper end,
3. Terminal operation part,
31 .. Handle part, 311 .. Rotating shaft, 312 .. Rotating trunk part,
313 ... Projection, 314 ... Locking part,
315 ... Terminal groove, 316 ... Rotating side, 3161 ... Tension spring,
317 ・ ・ Holding part, 318 ・ ・ Locking member locking hole, 319 ・ ・ Upper end surface,
32 .... Release maintenance mechanism, 321 ... Lock member, 3211 ... Front end, 3212 ... Rear end,
322 ・ ・ Spring member, 323 ・ ・ Pin,
33 ... Release button, 331 ... Lower prism, 3311 ... Two crotch, 332 ... Cam slot,
333 .. Upper end operation part,
34 ・ ・ Operation part cover, 341 ・ ・ Right side plate, 3411 and 3421 ・ ・ Mating protrusion,
3422 ・ ・ Stopper engaging part, 342 ・ ・ Left side plate,
343 ... Upper plate, 3431 ... Notch, 344 ... Back plate, 3441, 3442 ... Back plate member,
35 ·· Frame, 351 · · Body storage, 352 · · Groove, 353 · · Guide wall,
354 ... Sliding hole, 355 ... Spring storage, 356 ... Release button sliding hole, 357 ... Step,
36,37 ... Outer frame, 361,371 ... Step, 372 ... Stopper projection,
4,4a, 4b, 4c, 4d ・ ・ Two-wheel caster, 41 ・ ・ Wheel, 41a, 41b ・ ・ Wheel,
42 .. Wheel axle, 43 .. Wheel axle fixing part, 44 .. Outer ring, 45 .. Internal gear,
5. Wheel lock mechanism,
51 ・ ・ Lock mechanism frame, 511 ・ ・ Wheel bearing, 512 ・ ・ Mounting part,
513,515 ・ ・ Storage part, 513a ・ ・ Fitting hole, 513b ・ ・ Mounting groove, 513c ・ ・ Pin hole,
514 ・ ・ Protruding wheel, 514a ・ ・ Pin hole,
516 .. Lid member, 516a .. Claw part, 516b .. Hinge part,
516c ・ ・ Pin hole, 517 ・ ・ Pin, 518 ・ ・ Horizontal pin,
52 ・ ・ Swivel support part, 521 ・ ・ Mounting edge part, 522 ・ ・ Swivel auxiliary washer,
523 ・ ・ Snap ring for shaft,
53 .. Knock part, 531 ... Knock member,
532 ··· Pin holes for links, 533 ·· Fixed edges, 534 · · Screws, 535 · · Bolts,
54 .. Wheel tooth engagement lock part, 541 ... Spring, 542 ... Tooth part, 543 ... Tooth base
544 ・ ・ Base, 545 ・ ・ Spring engaging part, 546 ・ ・ Tooth base top surface, 547 ・ ・ Fitting hole,
55 ・ ・ Caster mounting bracket, 551 ・ ・ Mounting hole, 552 ・ ・ Bottom, 554 ・ ・ Both side plates,
555 ・ ・ End bearing part, 557 ・ ・ Bolt,
56 ・ ・ Link arm, 561 ・ ・ Rotating shaft, 562 ・ ・ Arm,
563 ・ ・ Locking part, 564 ・ ・ Horizontal groove, 565 ・ ・ Vertical groove,
566 · Arm, 567 · Pin oblong hole, 568 · Pin,
6 ・ ・ Operation transmission mechanism, 61 ・ ・ Operation wire,
611,616,631,636 ・ ・ Terminal part (Tyco), 612,632 ・ ・ Inner wire,
613,633 ... Coating part (outer wire), 614,615,634,635 ... Mounting fixing part,
62 ・ ・ Wire branch board, 621 ・ ・ Lid, 6211 ・ ・ Guide groove, 6212 ・ ・ Fixed convex part,
622 ... Slider, 6221, 6222 ... Fitting part, 6223 ... Mountain part,
623,624 ... Side plate,
63 ... Branch wire

Claims (3)

床頭台の底面に配置される少なくとも複数の双輪キャスターの車輪の回転を、1箇所の操作部によって同時に解除状態及びロック状態にする双輪キャスター操作機構において、
前記操作部はハンドル部、解除維持機構、解除ボタン、及び、操作部カバーから構成され、
車輪の回転を解除状態にする際には、前記ハンドル部を上方に引き上げて突出させ、該ハンドル部を前記解除維持機構のロック部材によって挙げた状態を維持するとともに、該ロック部材によって前記解除ボタンを上方に突出させ、
車輪の回転をロック状態にする際には、解除ボタンを下方に押し下げて、前記ハンドル部の前記ロック部材を解除し、該ハンドル部を押し下げるとともに、前記操作部カバーによって、押し下げられたハンドル部及び解除ボタンを覆うことを特徴とする床頭台を固定する末端操作装置。
In the twin-wheel caster operating mechanism in which the rotation of the wheels of at least a plurality of twin-wheel casters arranged on the bottom surface of the floor-top base is simultaneously released and locked by a single operation unit,
The operation unit includes a handle unit, a release maintaining mechanism, a release button, and an operation unit cover.
When the rotation of the wheel is released, the handle portion is pulled upward to project, and the handle portion is maintained in the state raised by the lock member of the release maintaining mechanism, and the release button is used by the lock member. Protruding upward,
When the rotation of the wheel is locked, the release button is pushed down to release the lock member of the handle portion, the handle portion is pushed down, and the handle portion pushed down by the operation portion cover and A terminal operation device for fixing a floor head stand, characterized by covering a release button.
前記解除ボタンは、双輪キャスターの解除状態を表示する解除表示ボタンとしたことを特徴とする請求項1に記載の床頭台を固定する末端操作装置。   The terminal operation device for fixing a floor head stand according to claim 1, wherein the release button is a release display button for displaying a release state of a twin-wheel caster. 前記操作部は床頭台の側板の上端部に設けるとともに、前記操作部カバーの上端面を平坦にして、車輪の回転をロック状態にする際には前記側板の上端部をほぼ平坦にすることを特徴とする請求項1又は2に記載の床頭台を固定する末端操作装置。   The operation unit is provided at the upper end of the side plate of the floor head, and the upper end surface of the operation unit cover is flattened so that the upper end of the side plate is substantially flat when the wheel rotation is locked. The terminal operation apparatus which fixes the floor head stand of Claim 1 or 2 characterized by these.
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JP2010143290A (en) * 2008-12-16 2010-07-01 Toyo Vending Kk Wire cable branching device to be used for wheel brake mechanism
JP2013017652A (en) * 2011-07-11 2013-01-31 Toyo Vending Kk Partitioning furniture device
JP2013152051A (en) * 2012-01-25 2013-08-08 Sharp Corp Air conditioning device
JP2013215249A (en) * 2012-04-05 2013-10-24 Toyo Vending Kk Care assisting device for toilet
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JP2015077261A (en) * 2013-10-17 2015-04-23 トーヨーベンディング株式会社 Seismic isolator for furniture with caster
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JP2016517815A (en) * 2013-04-02 2016-06-20 テンテ ルーレッテ ポリメール−ブルアンデ Casters for furniture etc. having locking means
JP2016199130A (en) * 2015-04-09 2016-12-01 株式会社日乃本錠前 Double-wheel caster brake gear
CN115501065A (en) * 2022-11-04 2022-12-23 中山市人民医院 ECMO equipment support convenient to lay on sick bed

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Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010143290A (en) * 2008-12-16 2010-07-01 Toyo Vending Kk Wire cable branching device to be used for wheel brake mechanism
US8910344B2 (en) 2010-04-07 2014-12-16 Alcon Research, Ltd. Systems and methods for caster obstacle management
US9089367B2 (en) 2010-04-08 2015-07-28 Alcon Research, Ltd. Patient eye level touch control
JP2013017652A (en) * 2011-07-11 2013-01-31 Toyo Vending Kk Partitioning furniture device
JP2013152051A (en) * 2012-01-25 2013-08-08 Sharp Corp Air conditioning device
JP2013215249A (en) * 2012-04-05 2013-10-24 Toyo Vending Kk Care assisting device for toilet
RU2563765C2 (en) * 2012-11-09 2015-09-20 Маквет Гмбх Cart to carry surgical table surface and/or surgical table column
JP2016517815A (en) * 2013-04-02 2016-06-20 テンテ ルーレッテ ポリメール−ブルアンデ Casters for furniture etc. having locking means
JP2015077261A (en) * 2013-10-17 2015-04-23 トーヨーベンディング株式会社 Seismic isolator for furniture with caster
JP2016199130A (en) * 2015-04-09 2016-12-01 株式会社日乃本錠前 Double-wheel caster brake gear
CN115501065A (en) * 2022-11-04 2022-12-23 中山市人民医院 ECMO equipment support convenient to lay on sick bed

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