baber/WOPTO huggingface dataset:
Patent JP-2013099874-A (JP)
Title: Concrete panel, and facility and method of manufacturing the same
Inventor: KIKUCHI MOTOHIRO
IPC: B28B23/02
Filed: 2011-11-08
Abstract: PROBLEM TO BE SOLVED: To provide a concrete panel with higher bending strength and to provide a technology for manufacturing the same.SOLUTION: In the parallelepiped concrete panel, a net body 3 is arranged at the nearest inner side of the rear surface of a panel body 1. The concrete constituting the panel body is extremely stiff consistency concrete. The net body 3 is made of materials having rust preventive property and tensile strength property in a net shape. The method of manufacturing the concrete panel includes: a net body arranging process for arranging the net body 3 on the bottom of the molding die 10; a concrete casting process for casting concrete before hardening in a molding die 10; a clamping process for clamping the casted concrete before hardening; and a removing process for removing the product from the molding die after the concrete is clamped. Since the net body 3 is at the nearest inner side of the rear surface of the concrete panel, the net body resists against the tensile stress generated on the rear surface when a bending action is exerted due to the load from the upper surface side, and thus the concrete panel with higher bending strength is obtained. The method is effective in improving the strength of the concrete panel.
Patent JP-2013104196-A (JP)
Title: Tunnel execution device and tunnel construction method
Inventor: YONEZAWA MINORU
IPC: E21D11/40
Filed: 2011-11-11
Abstract: PROBLEM TO BE SOLVED: To efficiently transport components of a structure such as floor slabs to their installation positions.SOLUTION: Two lift devices 3 are installed on each of left and right sides of a portal bogie 2. Moreover, a crane 4 is installed on the portal bogie 2. The crane 4 lifts and transports materials within a range from the front side end to the rear side end of the portal bogie 2 through an extension part 26a. A plurality of panel members 12a transported to the inside of the portal bogie 2 by a carrier vehicle 5 are lifted by the lift devices 3 and stored in the portal bogie 2. The crane 4 lifts the panel members 12a stored in the portal bogie 2 one by one and transports them to installation positions behind the portal bogie 2. Lifting and transport of the panel members 12a by the crane 4 is continuously carried out until the stocks of the panel members 12a stored in the portal bogie 2 are run out. Meanwhile, the portal bogie 2 advances in accordance with a degree in the progress of installation of the panel members 12a.
Patent JP-2012107497-A (JP)
Title: Working machine and energy regeneration cylinder for use in the same
Inventor: HANS-PETER LAVERGNE
IPC: E02F9/22
Filed: 2011-11-14
Abstract: PROBLEM TO BE SOLVED: To enable long-term use in particular and improve energy efficiency, by improving a function of a known working machine equipped with an energy regeneration cylinder.SOLUTION: In a working machine equipped with a movable section being driven by a hydraulically-driven cylinder, an energy regeneration cylinder 3 is equipped with a gas-filled chamber 12 for regenerating energy by an operation of the movable section. The gas-filled chamber 12 can communicate with an accumulator 30 for compensating for pressure increase exceeding at least maximum pressure in the gas-filled chamber 12.
Patent JP-2013104820-A (JP)
Title: Power consumption measurement device and power consumption measurement system
Inventor: OKAMOTO YOSHIBUMI
IPC: G01R21/08
Filed: 2011-11-15
Abstract: PROBLEM TO BE SOLVED: To provide a power consumption measurement device and a power consumption measurement system capable of measuring a usage state of an electric device with high accuracy and certainty.SOLUTION: A power consumption measurement device includes: receptacles to which electric devices as measurement targets are connected; a plug connected to an external power source; a conductor connecting between the receptacles and the plug; voltage measurement means for measuring voltage applied to the conductor; current measurement means for measuring current flowing through the conductor; and power acquisition means for acquiring a power consumption value of the electric devices on the basis of a voltage value obtained by the voltage measurement means and a current value obtained by the current measurement means. The current measurement means includes: a current direction change area for changing the flow direction of a measurement target current flowing through the conductor to another direction; a magnetism detection element for detecting magnetism generated by the measurement target current whose flow direction is changed in the current direction change area; and current value acquisition means for obtaining a current value of the measurement target current from output by the magnetism detection element.
Patent JP-2013104390-A (JP)
Title: Throttle device
Inventor: OHARA TAKUYA
IPC: F02D11/10
Filed: 2011-11-15
Abstract: PROBLEM TO BE SOLVED: To improve unfreezing performance between a throttle valve and a bore inner wall.SOLUTION: In this throttle device, a throttle shaft 4 is rotated by an electric motor or the like, thereby changing the opening of a bore 11 by the throttle valve 5 to adjust the intake air flow rate of the bore 11. The throttle shaft 4 is rotatively supported by a pair of sliding bearings 21A (21B) provided correspondingly at both the ends of the throttle shaft. Both the bearings 21A (21B) are arranged in a throttle body 2 (12) so that the throttle shaft 4 is located adjacently to the downstream end 11b of the bore 11. When the throttle valve 5 is made in a closed state where the bore 11 is substantially closed, the throttle valve 5 is arranged at a predetermined closing angle θ1 with respect to the radial direction of the bore 11, and one end 5a of the throttle valve 5 is arranged adjacently to the downstream end 11b of the bore 11. When the throttle valve 5 starts to open the bore 11, the one end 5a of the throttle valve 5 immediately protrudes from the bore 11.
Patent JP-2013108236-A (JP)
Title: Stepladder
Inventor: MORISHITA ATSUSHI
IPC: E06C1/393
Filed: 2011-11-17
Abstract: PROBLEM TO BE SOLVED: To provide a stepladder which can be installed stably with respect to a surface where all inclinations of installation surfaces for legs of the stepladder are different.SOLUTION: Each pair of four legs 10 has a plurality of horizontal girders 15 for reinforcement, one end of each of the legs 10 is mounted to a footstool 20 by a folding mechanism 25, and the other end has a leg length adjusting part 30 for adjusting a leg length, respectively. A leg terminal part 40 in one end of the leg length adjusting part 30 has a ball receiving mechanism 46, a ball 44 and a ball fixing portion 42, the ball 44 is fixed to the ball fixing portion 42 and fitted to the ball receiving mechanism 46 in a freely rotatable manner, and a bottom face of the ball fixing portion 42 has an anti-skid portion 35 for preventing skidding with an installation surface.
Patent JP-2013109791-A (JP)
Title: Disk recording-reproducing device and recording-reproducing method
Inventor: MUTSURO YASUO
IPC: G11B17/22
Filed: 2011-11-18
Abstract: PROBLEM TO BE SOLVED: To provide a disk recording-reproducing device capable of allowing an easier data address management and also capable of reducing an access time, and a recording-reproducing method thereof.SOLUTION: A picker part has a function of reproducing an optical disk, and acquires an adjustment parameter on recording and reproducing at a drive of the optical disk while transporting the optical disk from a storage place to the drive. The drive performs reproduction of the transported optical disk. At this time, as the drive sets each parameter required for recording and reproducing, according to the adjustment parameter acquired by the picker part, time saving can be realized.
Patent JP-2012075161-A (JP)
Title: Closed caption tagging system
Inventor: JAMES M BURTON
IPC: H04N7/173
Filed: 2011-11-18
Abstract: PROBLEM TO BE SOLVED: To provide a closed caption tagging system that gives content providers the ability to send frame-specific data across broadcast media, and further allows a receiver to dynamically interact with a viewer and configure itself based on program content.SOLUTION: The system provides a mechanism for inserting tags into an audio or video television broadcast stream. The tags contain command and control information that the receiver translates and acts upon. The receiver receives the broadcast stream and detects and processes the tags within the broadcast stream which is stored on a storage device that resides on the receiver. Tags indicate the start and end points of a program segment. The receiver skips over a program segment during playback in response to the viewer pressing a button on a remote input device, or automatically skips over program segments depending on the viewer's preferences.
Patent JP-2013082416-A (JP)
Title: Method for cooling and controlling vehicle high-voltage battery
Inventor: BOKU KENSHU
IPC: B60K11/06
Filed: 2011-11-22
Abstract: PROBLEM TO BE SOLVED: To provide a method for cooling and controlling a vehicle high-voltage battery which suppresses or prevents a temperature of the high-voltage battery from excessively rising when a vehicle is left in idling in the daytime having a lot of sunlight.SOLUTION: When it is determined that a cabin temperature in a vehicle may cause an excessive temperature of the high-voltage battery, proper control maximally suppresses the temperature rise of the high-voltage battery to improve the operation safety of the high-voltage battery.
Patent JP-2013111326-A (JP)
Title: Disposable diaper
Inventor: SAGARA SANAE
IPC: A61F13/49
Filed: 2011-11-30
Abstract: PROBLEM TO BE SOLVED: To provide a disposable diaper in which the original absorbing ability of an absorbent polymer contained in an absorbent body is sufficiently demonstrated, and the leakage preventing property has been increased.SOLUTION: The disposable diaper 1 includes a front surface sheet 2, a rear surface sheet 3, and the absorbent body 4 which is arranged between those sheets 2 and 3. The disposable diaper 1 is divided into a belly side section A, a back side section B and a crotch section C. Between the front surface sheet 2 and the rear surface sheet 3 in the waist flap section of the back side section B, a sheet-like composite member 6 is included. The sheet-like composite member 6 includes: a front surface nonwoven fabric 62 comprising a hydrophobic fiber; and a rear surface nonwoven fabric 63 comprising a hydrophobic fiber, wherein the sheet-like composite member is formed in such a manner that an elastic member 61 under a stretched state in the width direction is arrange-fixed between the front surface nonwoven fabric 62 and the rear surface nonwoven fabric 63. The front surface nonwoven fabric 62 is made hydrophilic by applying a skin care agent containing a diamide derivative.
Patent JP-2013113400-A (JP)
Title: Link for chain connection
Inventor: KIMURA SATORU
IPC: F16G15/04
Filed: 2011-11-30
Abstract: PROBLEM TO BE SOLVED: To provide a connection link which prevents the generation of deformation caused by wear or bruise etc. in the outer periphery of an arm portion for connection of a link for chain connection, and can actualize the enhancement of strength, particularly, the enhancement of fatigue strength.SOLUTION: The link for chain connection consists of one pair of U type links 1a, 1b, and is provided with groove-shaped arm portions for connection 4a1, 4a2, 4b1, 4b2 having arm portions for connection 2a, 2b in one end of the U type link and groove-shaped portions 3a, 3b in the other end, in which arm portions for connection 2a, or 2b in one end of the U type link are fitted into the groove-shaped arm portions for connection 4a1, 4a2, or 4b1, 4b2 of the other end, one pair of the U type link is connected by penetrating a connection shaft 5 in a through-hole provided in the arm portions for connection for connection 2a, 2b, 4a1, 4a2, 4b1, 4b2, wherein the outer diameter of the groove-shaped arm portions for connection 4a1, 4a2, 4b1, 4b2 is made larger than the outer diameter of the arm portions for connection 2a, 2b for connection so that the contact or collision of the arm portions for connection 2a, 2b for connection and obstacles etc. is prevented.
Patent JP-2013123714-A (JP)
Title: Steel plate-inverting device
Inventor: NAKAMURA KOICHI
IPC: B21B39/32
Filed: 2011-12-13
Abstract: PROBLEM TO BE SOLVED: To provide a steel plate-inverting device automatically and efficiently performing inversion work of a steel plate without generating a surface flaw regardless of a steel plate size.SOLUTION: This steel plate-inverting device includes: a delivery side frame 2 rotationally driving the steel plate 1 placed on the frame in a horizontal state to about vertical to raise the steel plate; and a reception side frame 11 receiving the steel plate raised by the delivery side frame in a state that the steel plate is nearly vertically rotationally driven, and thereafter rotationally driving the steel plate to return it to the horizontal. The delivery side frame and the reception side frame respectively comprise main frames 4, 12 and subframes 5, 13, the subframe of the delivery side frame is rotationally driven around a horizontal rotary shaft 8 present in a main frame lower end part in the vertical state, the subframe of the reception side frame is rotationally driven around a horizontal rotary shaft 16 present in a main frame upper end part in the vertical state, and the steel plate-inverting device delivers the steel plate from the delivery side frame to the reception side frame and inverts the steel plate.
Patent JP-2013123993-A (JP)
Title: Preceding vehicle start notification device
Inventor: ABE KYOICHI
IPC: G08G1/16
Filed: 2011-12-14
Abstract: PROBLEM TO BE SOLVED: To provide a preceding vehicle start notification device suppressing a driver from being bothered.SOLUTION: The preceding vehicle start notification device notifies a driver of start of a preceding vehicle upon detection of the start of the preceding vehicle during stop of the vehicle (for example, when the vehicle stops according to stop of the preceding vehicle by preceding vehicle follow-up control, and a stop state of the vehicle is being maintained). Even if the start of the preceding vehicle is detected in start reservation operation (for example, operation for resuming the preceding vehicle follow-up control according to the start of the preceding vehicle) by the driver during the stop of the vehicle, the start of the preceding vehicle is not notified to the driver.
Patent JP-2013112422-A (JP)
Title: Container for storing remaining content
Inventor: KANAYAMA TERUKO
IPC: B65D83/00
Filed: 2011-11-29
Abstract: PROBLEM TO BE SOLVED: To provide a container for storing remaining contents that naturally guides remaining contents in a food container or cosmetic container having reduced contents to the outside, stores and preserves them therein, eliminates troublesomeness such as forcibly squeezing out the remaining contents or shaking a container after turning it upside down, and allows all the contents to be easily and beautifully used up to the last.SOLUTION: A holding body 2 is formed with a plurality of cuts 3 and configured to hold a container or the like upside down. The holding body is arranged at one end of a hollow stand body 1. A storage part 4 is freely detachably arranged near substantially the other end of the hollow stand body 1 in order to receive and store remaining contents flowing out from the inside of the container or the like.
Patent JP-2013130494-A (JP)
Title: Long-term creep strength estimation method, residual service life estimation method and residual service life evaluation device for precipitation strengthening type heat resistant alloy
Inventor: KONNO SHINYA
IPC: G01N3/18
Filed: 2011-12-22
Abstract: PROBLEM TO BE SOLVED: To improve prediction accuracy of creep rupture strength of a precipitation strengthening type Ni base superalloy and evaluation accuracy of a residual service life after actual machine use, and to secure long-term reliability of a high temperature component.SOLUTION: A creep rupture test in limited time is performed, rupture stress σ and creep rupture time twhich are the results thereof are used to determine a stress index n of a creep deformation speed and a constant Cin a following equation (5) from following equations (5)-(7) and (2), and long-term creep strength of a precipitation strengthening type heat resistant alloy is estimated using the following equations (5)-(7) and (2): lnσ=-(1/n)lnCMP+C...(5), CMP=((π/F)-2)(d-d)...(6), d=(kt+d)...(7), and k=(C/T)exp(-Q/RT)...(2).
Patent JP-2013129768-A (JP)
Title: Curable composition
Inventor: HAMADA YUKIKO
IPC: C08K3/36
Filed: 2011-12-22
Abstract: PROBLEM TO BE SOLVED: To provide a curable composition having high hardness of a cured material, high stress at 100% elongation in dumbbell tensile measurement, high maximum tensile stress and high elongation at maximum load.SOLUTION: The curable composition contains a liquid polysulfide polymer, an oxidant and a filler, has a hardness (Shore A) of ≥45 in measurement of a composition cured at 70°C for 2 hr under the atmosphere of 23°C, and has 3,500 of the value of product of: the stress, M(N/mm) in the dumbbell tensile measurement; a maximumtensile stress, T(N/mm); and an elongation at maximum load, E(%). The liquid polysulfide polymer is represented by HS-(R-S)-R-SH (wherein x is an integer of 1 to 5, provided that the average value of x is 1 to 2.5; n is an integer of 1 to 200; and R is a di- or tri-valent organic group including -OCHO-).
Patent JP-2013133121-A (JP)
Title: Container with spray nozzle
Inventor: ABE TAKAYUKI
IPC: A61H35/04
Filed: 2011-12-26
Abstract: PROBLEM TO BE SOLVED: To provide a container with spray nozzle which does not induce bending of a constitutional member, and allows using up of the whole quantity of a content and long-lasting quality maintenance of the content.SOLUTION: A container includes a container body 1 filled with the content, and the spray nozzle fixed and held onto a mouth neck of the container body 1, sucking the content in the filling space through a suction port 8g into a cylinder 8c by driving a pump 8, and pressurizing, compressing, and spraying the sucked content outside in the form of mist. The container body 1 has a double inner and outer structure of an inner layer body 1a directly holding the content and allowing its shrinkage with the reduction in amount of the content filled, and an outer layer body 1b housing therein the inner layer body 1a. An outside air introduction part 9 for introducing the outside air into between the inner layer body 1a and the outer layer body 1b is provided at least at one part of a wall of the outer layer body 1b.
Patent JP-2013134969-A (JP)
Title: Key switch structure
Inventor: YAMADA SHIGERU
IPC: H01H13/14
Filed: 2011-12-27
Abstract: PROBLEM TO BE SOLVED: To provide a key switch structure suppressing the deterioration in extracting force of a key top from a link mechanism, even if a key board is made to be thin.SOLUTION: A key switch structure is provided with a link mechanism 128 which supports a key top 110 so as to contact/separate to/from a back sheet 170. The link mechanism 128 includes a first link member 120 rotatably held on a surface of a back plate 170 on one end side, and slidably held on a back surface of the key top 110 on the other end side; and a second link member 130 rotatably coupled to the first link member 120, rotatably engaged with a rotation supporting portion 112 provided on the back surface of the key top 110, on one end side, and held so as to slide on the surface of the back plate 170 on the other end side. The link mechanism 128 also has a recessed portion 131 provided on the second link member 130; and a projection 113 formed on the rotation supporting portion 112, and engaged with the recessed portion 131 to limit the coming off of the key top 110 from the second link member 130.
Patent JP-2013138296-A (JP)
Title: Antenna device
Inventor: MIYOSHI AKIRA
IPC: H01Q13/08
Filed: 2011-12-28
Abstract: PROBLEM TO BE SOLVED: To improve frequency band and radiation efficiency.SOLUTION: In an antenna device (10A) including a feed line (20) having a first conductor (22) and a second conductor (21), and an antenna element (30A) where a slit (36) is formed in a conductor plate, the antenna element (30A) is divided into an antenna pattern (32A) and a ground pattern (34A) via the slit (36). The slit (36) consists of a first slit (361) spaced apart from the center line (CL) to the first side, a second slit (362) spaced apart from the center line to the second side, a third slit (363) coupling the first slit and the second slit, and a notch (364) coupling the third slit and the third side.
Patent JP-2011515266-A (JP)
Title: タイヤのトレッドパターン
IPC: B60C11/12
Filed: 2009-03-20
Abstract: 本発明は、各々が先導面（６１）、後続面（６２）及び接触面（６０）を有する複数個のブロック（６）を有する、タイヤのトレッド（１）であって、先導面（６１）が０°よりも大きい平均角度αＡを定め、後続面（６２）が０°よりも大きい平均角度αＦを定め、先導面（６１）の角度αＡが後続面の角度αＦよりも大きく、各ブロック（６）がブロックの本体中に延びる切り込み（７）を有し、切り込み（７）が互いに対向した面によって画定され、対向した面が少なくとも１つの方向における対向した面のうちの一方の他方の面に対する相対運動を制止する制止手段（７１）を備え、切り込み（７）がブロックの接触面（６０）を表面積が互いに実質的に等しい２つの部分に分割している、タイヤトレッドにおいて、切り込み（７）は、先導面（６１）の角度αＡと同一方向に接触面（６０）に垂直に測定して平均角度βをなして傾けられ、先導面（６１）と切り込み（７）との間の材料の体積は、後続面（６２）と切り込み（７）との間の材料の体積よりも少ないことを特徴とするタイヤトレッドに関する。
Patent JP-2011517939-A (JP)
Title: 急性心臓同種移植拒絶反応を診断する方法
IPC: G01N33/53
Filed: 2009-04-09
Abstract: 本発明は、ゲノム発現プロファイリング、プロテオミクス発現プロファイリング、代謝産物プロファイリング、またはアロ反応性T細胞ゲノム発現プロファイリングを用いる心臓同種移植の急性拒絶反応を診断する方法に関する。
Patent JP-2011517734-A (JP)
Title: 材料を蒸着するための製造装置及び当該装置において使用される電極
IPC: C23C16/46
Filed: 2009-04-13
Abstract: 本発明は、担体における材料の蒸着に対する製造装置、及び該製造装置に使用される電極に係る。典型的には担体は、互いから離間された第１の端部及び第２の端部を備える。ソケットは、担体の端部の各々において配置される。製造装置は、チャンバを画定するハウジングを有する。少なくとも１つの電極は、ハウジングを通って配置される。該電極は、チャネルを画定する内部表面を有する。電極は、担体に対する電流の直接通過によって必要な蒸着温度まで担体を加熱する。冷却剤は、電極の温度を低下させるよう電極のチャネルと流体連通する。チャネルコーティングは、冷却剤と内部表面との間における熱伝達の損失をセグメントよう、電極の内部表面において配置される。
Patent JP-2011520728-A (JP)
Title: エスカレータまたは動く歩道のための手すり
IPC: B66B23/24
Filed: 2009-05-05
Abstract: エスカレータまたは動く歩道のための手すり（２）が、手すり（３ａ）および嵌合されたけん引手段（９ｌ、９ｂ）のみからなり、欄干の頂側（７）上の誘導表面（５ｆ〜５ｍ）と相補的である誘導表面（１１ｈ〜１１ｎ）を有するように設計される。手すり（３ａ）または手すり（３ａ）のカバーは、耐火性、不燃性、または難燃性の材料から作製される。
Patent JP-2011522528-A (JP)
Title: 効率的な健康状態の評価および改善された処置プロトコール
IPC: A61K39/395
Filed: 2009-05-22
Abstract: 全身的な健康状態を評価するための方法、および治療剤の有効性を評価するための方法が開示される。これら方法は、血液サンプルもしくは他の体液に対して行われ得、内皮細胞の細胞死をもたらす工程、上記死細胞を染色する工程、およびそれらを顕微鏡観察する工程を包含する。さらに、本発明は、血中でエタノールおよび／もしくはＤＭＳＯの非毒性レベルを維持しながら、抗脈管形成剤を投与することによる、新生物疾患もしくは望ましくない脈管形成によって特徴付けられる他の状態のための組み合わせ処置に関する。
Patent JP-2011523338-A (JP)
Title: 電力損失モデルを用いて電力システムの効率を最適化する装置および方法
IPC: H02J1/10
Filed: 2009-05-13
Abstract: 負荷要件の変化、電源のばらつき、およびサブシステムの温度変動に応答するようなやり方で、総サブシステム効率を向上させるために、電力サブシステムを能動的に最適化する。構成デバイスについて、詳細な多次元電力損モデルを作成し、次いでこれらを電力サブシステムに組み合わせる。電力サブシステムは、コントローラと、入力および出力電圧、出力電流、ならびに温度というようなデバイス動作パラメータを測定する回路とを内蔵する。動作パラメータを連続的に監視し、詳細な電力損モデルに基づいて、設定点を対応して変化させて、システムの瞬時的動作状態について最大の全体的効率を達成する。 【選択図】図３
Patent JP-2011525730-A (JP)
Title: オンラインユーザプロファイルに基づいて選択されかつそのプロファイルに関連したｔｖプログラムまたはチャンネルから提供されるターゲットｔｖ広告
IPC: G06Q30/00
Filed: 2009-06-02
Abstract: 【課題】オンラインユーザプロファイルに基づいて選択されかつそのプロファイルに関連したＴＶプログラムまたはチャンネルから提供されるターゲットＴＶ広告を提示するコンピュータ実装方法を提供する。 【解決手段】自動式のコンピュータ実装方法において、選択されたＴＶ広告が、ＴＶプログラムまたはチャンネルに関連して自動的に提示される。オンラインユーザプロファイルと、ＴＶプログラムまたはチャンネルとの関係が識別され、ＴＶ広告は、オンラインユーザプロファイルからの情報の少なくとも一部に基づいて選択される。選択されたＴＶ広告は、オンラインユーザプロファイルに関連した対応するセットトップボックス識別情報を有するセットトップボックスを介して、オンラインユーザプロファイルに関係して識別されたＴＶプログラムまたはチャンネルに関連して提示される。 【選択図】図７
Patent JP-2011527597-A (JP)
Title: マルチユニット型化粧品塗布器
IPC: B43K24/12
Filed: 2008-07-23
Abstract: マルチユニット型化粧品塗布器は、ハウジング胴体と、前記ハウジング胴体内に収容された第１の化粧品ユニットと、前記ハウジング胴体内に収容された第２の化粧品ユニットと、を備え、前記ハウジング胴体は開口を有するとともに、前記各化粧品ユニットは、前記各化粧品ユニットを保管位置から前進位置まで、さらに保管位置まで戻すときに、互いに独立して移動させることができる手段を有する。前記手段は、ラチェット機構部、押出機構部、あるいは２つ部分からなる螺旋回転機構部を有してもよい。   【選択図】図１４ａ