JP2015155339A - Elevator equipment and noise reduction method - Google Patents

Elevator equipment and noise reduction method Download PDF

Info

Publication number
JP2015155339A
JP2015155339A JP2014030285A JP2014030285A JP2015155339A JP 2015155339 A JP2015155339 A JP 2015155339A JP 2014030285 A JP2014030285 A JP 2014030285A JP 2014030285 A JP2014030285 A JP 2014030285A JP 2015155339 A JP2015155339 A JP 2015155339A
Authority
JP
Japan
Prior art keywords
car
noise
microphone
speaker
sound
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP2014030285A
Other languages
Japanese (ja)
Other versions
JP6368106B2 (en
Inventor
誠一郎 尾渡
Seiichiro Owatari
誠一郎 尾渡
光則 菅具
Mitsunori Kangu
光則 菅具
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP2014030285A priority Critical patent/JP6368106B2/en
Priority to CN201510031771.1A priority patent/CN104860163B/en
Publication of JP2015155339A publication Critical patent/JP2015155339A/en
Application granted granted Critical
Publication of JP6368106B2 publication Critical patent/JP6368106B2/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
    • B66B11/02—Cages, i.e. cars
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators

Abstract

PROBLEM TO BE SOLVED: To reduce noises in a cage while providing a ventilation space in the cage.
SOLUTION: Elevator equipment provided with a ventilation space includes: a microphone for detecting a noise within a cage; a loudspeaker for generating a sound; and a control device which makes the microphone detect the noise making an entry into the cage from a hoistway of the elevator equipment, and which makes the loudspeaker generate the sound with a phase opposite to a phase of the noise detected by the microphone.
COPYRIGHT: (C)2015,JPO&INPIT

Description

本発明は、エレベーター装置及び騒音低減方法に関し、かご内の換気を確保しながら騒音を低減するエレベーター装置及び騒音低減方法に適用して好適なるものである。   The present invention relates to an elevator apparatus and a noise reduction method, and is suitable for application to an elevator apparatus and a noise reduction method that reduce noise while ensuring ventilation in a car.

従来、海外規格のエレベーター装置については乗りかご内の換気要求があり、乗りかご内に換気スペースを設ける必要があった。一方、近年では、超高速エレベーターや単独昇降路に設置するエレベーター装置において、かご内の騒音低減が求められている。   Conventionally, there has been a demand for ventilation in a car for an elevator device of an overseas standard, and it has been necessary to provide a ventilation space in the car. On the other hand, in recent years, in an elevator apparatus installed in an ultra-high speed elevator or a single hoistway, noise reduction in the car is required.

そこで、かご内の騒音を低減するため、例えば特許文献１では、乗りかご枠を外殻形状に形成し乗りかごを覆い、かご枠との間に消音空間を設け、騒音を検出して、その騒音を昇温する音響を発生することが開示されている。   Therefore, in order to reduce the noise in the car, for example, in Patent Document 1, the car frame is formed in an outer shell shape to cover the car, and a noise reduction space is provided between the car frame and the noise is detected. It is disclosed to generate sound that raises the noise.

特開平５−７８０６５号公報JP-A-5-78065

しかし、上記特許文献１では、乗りかご内へ伝播する騒音を低減することができるが、乗りかごと乗りかご枠の間に外殻形状を形成し消音空間を作る必要がある為、乗りかごに換気スペースを設けることができず、海外規格等の乗りかご内の換気要求に対応できないという問題があった。   However, in the above-mentioned Patent Document 1, noise propagating into the car can be reduced. However, since it is necessary to form a shell-shaped space between the car and the car frame to create a silencing space, There was a problem that a ventilation space could not be provided and it was not possible to meet the ventilation requirements in the passenger car according to overseas standards.

本発明は以上の点を考慮してなされたもので、乗りかご内に換気スペースを設けつつかご内の騒音を低減することが可能なエレベーター装置及び騒音低減方法を提案しようとするものである。   The present invention has been made in consideration of the above points, and an object of the present invention is to propose an elevator apparatus and a noise reduction method capable of reducing the noise in the car while providing a ventilation space in the car.

かかる課題を解決するために本発明においては、換気スペースを設けたエレベーター装置であって、乗りかご内の騒音を検出するマイクと、音響を発生させるスピーカーと、前記マイクにより前記エレベーター装置の昇降路から乗りかご内に入る騒音を検出させ、前記マイクにより検出された騒音と逆位相の音響をスピーカーから発生させる制御装置と、を備えることを特徴とする、エレベーター装置が提供される。   In order to solve such a problem, in the present invention, an elevator apparatus provided with a ventilation space, a microphone for detecting noise in a car, a speaker for generating sound, and a hoistway of the elevator apparatus by the microphone There is provided an elevator apparatus comprising: a control device that detects noise entering a car from a car and generates sound having a phase opposite to that of the noise detected by the microphone from a speaker.

かかる構成によれば、エレベーター装置の乗りかご内の換気スペースから入る騒音を検出して、検出した騒音と逆位相の音響を乗りかご内に発生させることができる。これにより、乗りかご内に換気スペースを設けながら、かご内の騒音を低減することができる。   According to such a configuration, it is possible to detect noise entering from the ventilation space in the elevator car and generate sound in a phase opposite to the detected noise. Thereby, the noise in the car can be reduced while providing a ventilation space in the car.

本発明によれば、乗りかご内に換気スペースを設けつつかご内の騒音を低減することができる。   According to the present invention, noise in the car can be reduced while providing a ventilation space in the car.

本発明の一実施形態に係るエレベーター装置の全体構成を示す概念図である。It is a key map showing the whole elevator device composition concerning one embodiment of the present invention. 同実施形態にかかる乗りかごの概略構造を示す説明図である。It is explanatory drawing which shows schematic structure of the passenger car concerning the embodiment. 同実施形態にかかる乗りかご上部の換気スペースの概略構造を示す説明図である。It is explanatory drawing which shows schematic structure of the ventilation space of the cage | basket | car upper part concerning the embodiment. 同実施形態にかかる乗りかご下部の換気スペースの概略構造を示す説明図である。It is explanatory drawing which shows schematic structure of the ventilation space of the car lower part concerning the embodiment. 同実施形態にかかる乗りかご上部及び下部のマイク及びスピーカーの設置位置を示す説明図である。It is explanatory drawing which shows the installation position of the microphone and speaker of the upper and lower cars according to the embodiment.

以下図面について、本発明の一実施の形態を詳述する。   Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings.

まず、図１を参照して、本実施形態のエレベーター装置について説明する。図１に示すように、エレベーター装置の乗りかご２の上部と下部に換気スペースが設けられている。換気スペースには、スピーカー７とマイク４が設置されている。   First, the elevator apparatus of this embodiment is demonstrated with reference to FIG. As shown in FIG. 1, ventilation spaces are provided in the upper and lower parts of the elevator car 2. A speaker 7 and a microphone 4 are installed in the ventilation space.

マイク４は、後述する制御装置５の制御のもと、エレベーター装置の昇降路から乗りかご２内に入る騒音３を検出する。また、スピーカー７は、制御装置５の制御のもと、マイク４で検出された騒音と逆位相の音響を発生させる。   The microphone 4 detects noise 3 entering the car 2 from the hoistway of the elevator device under the control of the control device 5 described later. The speaker 7 generates sound having a phase opposite to that of the noise detected by the microphone 4 under the control of the control device 5.

また、乗りかご２の天井部１０には、制御装置５と器具ＢＯＸ６が設置されている。制御装置５は、マイク４で検出された音を逆位相の信号に変換し、スピーカー７から変換した逆位相の信号に対応する音響を発生させる機能を有する。マイク４とスピーカー７は制御装置５とケーブルで接続される。   A control device 5 and an appliance BOX 6 are installed on the ceiling 10 of the car 2. The control device 5 has a function of converting the sound detected by the microphone 4 into an antiphase signal and generating sound corresponding to the antiphase signal converted from the speaker 7. The microphone 4 and the speaker 7 are connected to the control device 5 with a cable.

制御装置５は、エレベーター装置の乗りかご上に設置している器具ＢＯＸ６から電源をとって、常時、エレベーター装置の乗りかご２内に換気スペースから入ってくる騒音３を検出して、スピーカー７から逆位相の音響を乗りかご２内に発生させ続ける装置である。   The control device 5 takes power from the appliance BOX 6 installed on the elevator car and constantly detects noise 3 coming from the ventilation space into the elevator car 2 and from the speaker 7. This is a device that continues to generate antiphase sound in the car 2.

また、図３に示すように、乗りかご２の換気スペースには、乗りかご２上部の天井部１０と、かご側板部の側面側板８とに数か所の換気用ジスピ１１が設けられている。また、乗りかご２上部の天井部１０と、かご背面部の背面側板９とに数か所の換気用ジスピ１１が設けられている。   In addition, as shown in FIG. 3, in the ventilation space of the car 2, several ventilation dyspies 11 are provided on the ceiling part 10 at the upper part of the car 2 and the side face plate 8 of the car side plate part. . In addition, several ventilation dyspies 11 are provided on the ceiling 10 at the top of the car 2 and the back side plate 9 on the back of the car.

また、図４に示すように、乗りかご２下部には、かご床幅木部１３と、かご側板部の側面側板８と数箇所の換気用ジスピ１１が設けられている。また、かご床幅木部１３と、かご背面部の背面側板９とに数箇所の換気用ジスピ１１が設けられている。   As shown in FIG. 4, a car floor skirting board portion 13, a side surface side plate 8 of the car side plate portion, and several ventilation dyspies 11 are provided at the lower part of the car 2. Further, several ventilation dyspies 11 are provided on the car floor skirting board 13 and the back side plate 9 on the back face of the car.

昇降路に面している側板にはカバー１２を設置し、必要な換気スペースを確保しながらも、騒音３の進入通路をラビリンス構造としている。これにより、騒音３が侵入する方向を制限し、マイク４により騒音が検出しやすい構造となっている。   A cover 12 is installed on the side plate facing the hoistway, and the approach passage for noise 3 has a labyrinth structure while securing a necessary ventilation space. Thus, the direction in which the noise 3 enters is limited and the microphone 4 can easily detect the noise.

また、乗りかご２内の前側、中央側、後側で騒音は異なる為、乗りかご２の側面のかご下に数箇所、乗りかご２の側面のかご上に数箇所、背面のかご下に数箇所、背面のかご上に数箇所マイク及びスピーカーを設置し、個々に騒音を検出し、逆位相の音響を発生させてもよい。   Also, because the noise is different on the front side, center side, and rear side in the car 2, there are several places under the car on the side of the car 2, several places on the car on the side of the car 2, and some numbers under the car on the back. Several microphones and speakers may be installed on the rear and rear cars, and noise may be detected individually to generate antiphase sound.

例えば、図５に示すように、乗りかご２上部（断面ＤＤ）の側面及び背面にそれぞれ複数のマイク及びスピーカーを設置してもよいし、乗りかご２下部（断面ＥＥ）の側面及び背面にそれぞれ複数のマイク及びスピーカーを設置してもよい。これにより、乗りかご２内のいずれの位置でも、騒音低減の効果を得ることができる。   For example, as shown in FIG. 5, a plurality of microphones and speakers may be installed on the side and back of the upper part of the car 2 (section DD), respectively, and on the side and back of the lower part of the car 2 (section EE). A plurality of microphones and speakers may be installed. Thereby, the noise reduction effect can be obtained at any position in the car 2.

また、乗りかご２上部及び下部のいずれかまたは両方に複数のマイク及びスピーカーを設置してもよい。また、エレベーター装置のサイズに応じてマイク及びスピーカーの設置数を変更してもよい。例えば、エレベーター装置の奥行が長い場合や、天井が高い場合には、より多くのマイクやスピーカーを設置するようにしてもよい。また、乗りかごの形状に応じてマイクやスピーカーの設置数や設置位置、または設置間隔などを変更してもよい。   A plurality of microphones and speakers may be installed on either or both of the upper and lower parts of the car 2. Moreover, you may change the number of installation of a microphone and a speaker according to the size of an elevator apparatus. For example, when the depth of the elevator apparatus is long or when the ceiling is high, more microphones and speakers may be installed. In addition, the number of microphones and speakers installed, the installation position, or the installation interval may be changed according to the shape of the car.

また、本実施の形態では、常時マイクで騒音を検出して、検出した騒音の逆位相の音響をスピーカーから発生するようにしているが、予め定められた定格速度でマイクにより騒音を検出して、スピーカーから逆位相の音響を発生させるようにしてもよい。   In the present embodiment, noise is always detected by a microphone, and the sound of the opposite phase of the detected noise is generated from the speaker. However, the noise is detected by the microphone at a predetermined rated speed. The sound of the opposite phase may be generated from the speaker.

また、乗りかご２内に乗客１が乗車している場合にのみ、スピーカーから逆位相の音響を発生させるようにしてもよい。また、検出された騒音が所定の大きさ以上である場合にのみ、スピーカーから逆位相の音響を発生させるようにしてもよい。これにより、無駄にスピーカーから音響を発生させることなく、効率よくかご内の騒音を低減させることができる。   Moreover, you may make it generate | occur | produce the sound of an antiphase from a speaker, only when the passenger 1 has boarded the passenger car 2. Moreover, you may make it generate | occur | produce the sound of an antiphase from a speaker, only when the detected noise is more than predetermined magnitude | size. Thereby, the noise in a cage | basket | car can be reduced efficiently, without generating a sound from a speaker wastefully.

また、換気スペースに設置する騒音検出用のマイク４は、乗りかご２に対して外向き（昇降路向き）に設置し、逆位相の音響を発生させるスピーカー７は乗りかごの内側に向ける構造とする。これにより、より効果的に騒音を検出して、検出した騒音に応じた音響を発生させることができる。   Further, the noise detection microphone 4 installed in the ventilation space is installed outward (toward the hoistway) with respect to the car 2, and the speaker 7 for generating the opposite phase sound is directed to the inside of the car. To do. Thereby, it is possible to detect noise more effectively and generate sound according to the detected noise.

また、スピーカー７は、かご側板で換気部を覆う構造にして、スピーカー７を乗りかご２内の乗客１からは視認できないようにする。これにより、乗客１によるスピーカー７へのいたずら等を防止することができる。また、乗りかご２の天井部１０のスピーカー７についても、照明器具や天井の装飾１４などにより、乗りかご２内の乗客１からは直接スピーカー７を視認できないようにして、いたずらを防止している。   In addition, the speaker 7 is structured to cover the ventilation portion with a car side plate so that the speaker 7 cannot be seen by the passenger 1 in the car 2. Thereby, the mischief etc. to the speaker 7 by the passenger 1 can be prevented. Further, the speaker 7 on the ceiling 10 of the car 2 is also prevented from being tampered with by the lighting fixtures or ceiling decorations 14 so that the passenger 7 in the car 2 cannot directly see the speaker 7. .

２ 乗りかご
４ マイク
５ 制御装置
６ 電源
７ スピーカー
８ 側面側板
９ 背面側板
１０ 乗りかご天井
１１ 換気用ジスピ
１２ 側板裏面カバー
１３ かご床幅木
１４ 天井照明器具、装飾品
2 Car 4 Microphone 5 Control device 6 Power supply 7 Speaker 8 Side plate 9 Back side plate 10 Car side ceiling 11 Ventilation bispi 12 Side plate back cover 13 Car floor skirting board 14 Ceiling lighting fixture, decoration

Claims (4)

換気スペースを設けたエレベーター装置であって、
乗りかご内の騒音を検出するマイクと、
音響を発生させるスピーカーと、
前記マイクにより前記エレベーター装置の昇降路から乗りかご内に入る騒音を検出させ、前記マイクにより検出された騒音と逆位相の音響をスピーカーから発生させる制御装置と、
を備えることを特徴とする、エレベーター装置。 An elevator device with a ventilation space,
A microphone that detects noise in the car,
A speaker that generates sound,
A control device that detects noise entering a car from a hoistway of the elevator device by the microphone, and generates sound having a phase opposite to that detected by the microphone from a speaker;
An elevator apparatus comprising: 前記マイク及びスピーカーは、前記乗りかごの側面及び／または背面に複数設置され、
前記制御装置は、
前記複数のマイクにより前記エレベーター装置の昇降路から乗りかご内に入る騒音を検出させ、前記複数のマイクにより検出された騒音と逆位相の音響を前記複数のスピーカーから発生させる
ことを特徴とする、請求項１に記載のエレベーター装置。 A plurality of microphones and speakers are installed on the side and / or back of the car,
The controller is
The noise that enters the car from the hoistway of the elevator apparatus by the plurality of microphones is detected, and the sound having the opposite phase to the noise detected by the plurality of microphones is generated from the plurality of speakers. The elevator apparatus according to claim 1. 前記エレベーター装置の昇降路に面した側板にカバーを設置し、前記マイクで検出される騒音の進入通路をラビリンス構造とする
ことを特徴とする、請求項１に記載のエレベーター装置。 The elevator apparatus according to claim 1, wherein a cover is installed on a side plate facing the hoistway of the elevator apparatus, and an approach path for noise detected by the microphone has a labyrinth structure. 換気スペースを設けたエレベーター装置における騒音低減方法であって、
エレベーター装置には、乗りかご内の騒音を検出するマイクと、音響を発生させるスピーカーとが備えられ、
前記マイクにより前記エレベーター装置の昇降路から乗りかご内に入る騒音を検出するステップと、
前記マイクにより検出された騒音と逆位相の音響をスピーカーから発生させるステップと、
を含むことを特徴とする、騒音低減方法。
A noise reduction method in an elevator apparatus provided with a ventilation space,
The elevator device is equipped with a microphone that detects noise in the car and a speaker that generates sound,
Detecting noise entering the car from the hoistway of the elevator device by the microphone;
Generating sound from a speaker in phase opposite to the noise detected by the microphone;
A noise reduction method comprising:
JP2014030285A 2014-02-20 2014-02-20 Elevator device and noise reduction method Expired - Fee Related JP6368106B2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2014030285A JP6368106B2 (en) 2014-02-20 2014-02-20 Elevator device and noise reduction method
CN201510031771.1A CN104860163B (en) 2014-02-20 2015-01-22 Lift facility and noise reducing method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2014030285A JP6368106B2 (en) 2014-02-20 2014-02-20 Elevator device and noise reduction method

Publications (2)

Publication Number Publication Date
JP2015155339A true JP2015155339A (en) 2015-08-27
JP6368106B2 JP6368106B2 (en) 2018-08-01

Family

ID=53906414

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2014030285A Expired - Fee Related JP6368106B2 (en) 2014-02-20 2014-02-20 Elevator device and noise reduction method

Country Status (2)

Country Link
JP (1) JP6368106B2 (en)
CN (1) CN104860163B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113748077A (en) * 2019-05-07 2021-12-03 三菱电机株式会社 Skirting board device of elevator

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6366839B2 (en) * 2015-07-01 2018-08-01 三菱電機株式会社 elevator
CN107055237A (en) * 2017-01-11 2017-08-18 广州广日电梯工业有限公司 The Active noise control system and method for a kind of express elevator
CN110077936B (en) * 2019-05-17 2020-07-07 温州乐控节能科技有限公司 Intelligent elevator energy feedback device
CN115072530A (en) * 2022-07-25 2022-09-20 华升富士达电梯有限公司 Noise reduction method and system for elevator car

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2069280A (en) * 1981-01-05 1981-08-19 Ross C F Process of testing for a sound control system
US4596033A (en) * 1984-02-21 1986-06-17 National Research Development Corp. Attenuation of sound waves
JPH01245795A (en) * 1988-03-28 1989-09-29 Daikin Ind Ltd Electronic silencer
JPH0680357A (en) * 1992-09-03 1994-03-22 Toshiba Corp Ventilation device for elevator car
JPH06227779A (en) * 1993-02-04 1994-08-16 Toshiba Corp Active noise control device for duct for ventilating elevator car

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2588714Y (en) * 2002-05-31 2003-11-26 黄大伟 Noise-eliminating earphone
FI117797B (en) * 2005-04-08 2007-02-28 Kone Corp Elevator system
CN101211558A (en) * 2006-12-28 2008-07-02 海尔集团公司 Active noise reduction method and device
CN103035234B (en) * 2011-09-28 2016-08-03 比亚迪股份有限公司 Active noise reducing device and method and the noise control system for smoke exhaust ventilator
CN102982798B (en) * 2012-12-07 2015-07-15 奇瑞汽车股份有限公司 Noise reduction system of generator
CN103231969B (en) * 2013-03-07 2016-04-27 西子奥的斯电梯有限公司 Ventilation Air System in a kind of car of low noise

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2069280A (en) * 1981-01-05 1981-08-19 Ross C F Process of testing for a sound control system
US4596033A (en) * 1984-02-21 1986-06-17 National Research Development Corp. Attenuation of sound waves
JPH01245795A (en) * 1988-03-28 1989-09-29 Daikin Ind Ltd Electronic silencer
JPH0680357A (en) * 1992-09-03 1994-03-22 Toshiba Corp Ventilation device for elevator car
JPH06227779A (en) * 1993-02-04 1994-08-16 Toshiba Corp Active noise control device for duct for ventilating elevator car

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113748077A (en) * 2019-05-07 2021-12-03 三菱电机株式会社 Skirting board device of elevator
CN113748077B (en) * 2019-05-07 2023-05-12 三菱电机株式会社 Skirting board device of elevator

Also Published As

Publication number Publication date
CN104860163B (en) 2017-09-05
JP6368106B2 (en) 2018-08-01
CN104860163A (en) 2015-08-26

Similar Documents

Publication Publication Date Title
JP6368106B2 (en) Elevator device and noise reduction method
US11240597B1 (en) Ceiling tile beamforming microphone array system
WO2015181727A3 (en) Methods circuits devices systems and associated computer executable code for acquiring acoustic signals
US9414142B1 (en) Wireless bath fan speaker
MY157196A (en) Methods and systems for active sound attenuation in an air handling unit
NZ725305A (en) A suspended ceiling clip
MX2016010574A (en) System and method for a vented and water control siding, vented and water control sheathing and vented and water control trim-board.
MX2016008285A (en) Loudspeaker arrangement in a vehicle.
SE0602429L (en) Mechanical locking of vertical paneling floor panels
JP2015164251A5 (en) Voice server, control method therefor, and voice system
JP2016023000A (en) Elevator apparatus
WO2008033181A3 (en) Devices and methods for flangeless installations
EP2424276A2 (en) Audio transmission device for cooperation with a hearing device comprising a telecoil for use in an elevator
JP2009215009A (en) Ceiling design improving method of car of elevator
CN104619626B (en) The improvement of elevator audio system and method for implementing elevator audio system
JP2016071099A (en) Elevator device and method for reducing noise in car
MX2019008802A (en) Sound broadcasting system.
CN204138070U (en) Elevator
CN204138120U (en) Escalator
JP2007173563A (en) Box unit
CN202321885U (en) Top structure for elevator car
TWD191890S (en) Elevator cabin ceiling (2)
JP2011109760A (en) Channel base and method for installing switchboard
JP2018033991A5 (en)
JP5292151B2 (en) Interphone handset mounting structure

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20160815

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20170714

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20170801

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20170825

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20171212

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20180111

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20180522

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20180621

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20180703

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20180706

R150 Certificate of patent or registration of utility model

Ref document number: 6368106

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150

LAPS Cancellation because of no payment of annual fees