WO2020184333A1 - Damper opening/closing device - Google Patents

Damper opening/closing device Download PDF

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Publication number
WO2020184333A1
WO2020184333A1 PCT/JP2020/009162 JP2020009162W WO2020184333A1 WO 2020184333 A1 WO2020184333 A1 WO 2020184333A1 JP 2020009162 W JP2020009162 W JP 2020009162W WO 2020184333 A1 WO2020184333 A1 WO 2020184333A1
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WO
WIPO (PCT)
Prior art keywords
opening
closing lid
damper
contact
closing
Prior art date
Application number
PCT/JP2020/009162
Other languages
French (fr)
Japanese (ja)
Inventor
福原基広
Original Assignee
日本碍子株式会社
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 日本碍子株式会社 filed Critical 日本碍子株式会社
Priority to EP20769422.5A priority Critical patent/EP3940309A4/en
Priority to JP2021504969A priority patent/JP7176093B2/en
Publication of WO2020184333A1 publication Critical patent/WO2020184333A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D88/00—Large containers
    • B65D88/74—Large containers having means for heating, cooling, aerating or other conditioning of contents
    • B65D88/741—Large containers having means for heating, cooling, aerating or other conditioning of contents aerating by ambient air through openings in the wall
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C2/00—Fire prevention or containment
    • A62C2/06—Physical fire-barriers
    • A62C2/24—Operating or controlling mechanisms
    • A62C2/246—Operating or controlling mechanisms having non-mechanical actuators
    • A62C2/247—Operating or controlling mechanisms having non-mechanical actuators electric
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C3/00—Fire prevention, containment or extinguishing specially adapted for particular objects or places
    • A62C3/14—Fire prevention, containment or extinguishing specially adapted for particular objects or places in connection with doors, windows, ventilators, partitions, or shutters, e.g. automatic closing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • F24F11/32—Responding to malfunctions or emergencies
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • F24F11/32—Responding to malfunctions or emergencies
    • F24F11/36—Responding to malfunctions or emergencies to leakage of heat-exchange fluid
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/89—Arrangement or mounting of control or safety devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
    • F24F13/10—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
    • F24F13/14—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
    • F24F13/10—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
    • F24F13/14—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre
    • F24F13/1426—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre characterised by actuating means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
    • F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
    • F25D17/042—Air treating means within refrigerated spaces
    • F25D17/045—Air flow control arrangements

Definitions

  • This damper opening / closing device charges according to the connection state of the switching circuit unit, the switching circuit unit, and the external power supply, in which a charging circuit for storing electric charge in the storage means and a discharge circuit for discharging the electric charge stored in the storage means are formed. It is provided with a relay that switches to either a circuit or a discharge circuit.
  • the relay switches to the charging circuit and accumulates electric charge in the storage means when the switching circuit and the external power supply are electrically connected and energized. Further, when the switching circuit section and the external power supply are electrically cut off, the relay releases the electric charge accumulated in the storage means by the discharge circuit and supplies it to the solenoid to drive the plunger of the solenoid to drive the damper opening / closing mechanism.
  • the part is linked to the plunger to change the damper from the open state to the closed state.
  • the damper switchgear described in Japanese Patent Application Laid-Open No. 2006-187524 needs to accumulate electric charges in the power storage means during the period when power is supplied from the external power source. Therefore, a charging circuit for accumulating electric charges, a storage means for accumulating electric charges, and a discharge circuit for discharging electric charges from the electric charge means in the event of a power failure are required.
  • FIG. 5A is a front view showing the assembly of the cam plate and the crank plate
  • FIG. 5B is a cross-sectional view taken along the line VB-VB in FIG. 5A.
  • the damper opening / closing device 10 is installed in an opening 12 such as an air supply port installed on the floor surface of a container or the like.
  • the damper opening / closing device 10 has a base 16 having a frame portion 14 installed so as to surround the opening 12 on the floor surface, and an opening / closing lid rotatably installed with respect to the base 16 to open / close the opening 12. It has 18, a holding mechanism 20 fixed to the base 16, and a returning mechanism 24.
  • the opening / closing lid 18 is formed, for example, with a metal plate so as to close the opening 12.
  • the shape of the opening 12 is rectangular when viewed from the upper surface, it is rectangular like the opening 12.
  • the shape of the opening / closing lid 18 may be a circular shape, an elliptical shape, a track shape, a polygonal shape, or the like, depending on the shape of the opening 12.
  • the track shape is a shape composed of two opposing semicircular portions and two parallel straight portions connecting the semicircular portions.
  • a locked metal fitting 27 that is locked and fixed by the holding mechanism 20 is provided on the upper part of the opening / closing lid 18.
  • the locked bracket 27 provided on the upper part of the opening / closing lid 18 at the locking portion 36b.
  • the opening / closing lid 18 is held in the open state by locking a part of the lid 18.
  • the holding metal fitting 36 rotates about the support shaft 38 due to the weight of the opening / closing lid 18, so that the locked metal fitting of the opening / closing lid 18 is locked. 27 comes off from the holding bracket 36.
  • the opening / closing lid 18 rotates (falls) with the hinge 22 as a rotation fulcrum, and the opening 12 is closed (see the solid line in FIG. 2).
  • the return mechanism 24 controls the motor 40, the arm 42 that rotates the opening / closing lid 18 upward with the rotation of the motor 40, and the rotational drive of the motor 40. It has a rotation control unit 44 (see FIG. 6) and a transmission mechanism 46 (see FIGS. 2, 5A, 5B) that transmits the rotational force of the motor 40 to the arm 42.
  • the damper internal circuit 64 has, for example, four contacts (first contact 70a to fourth contact 70d).
  • the first switch 66A is connected between the power supply line 60 and the first contact 70a
  • the second switch 66B is connected between the power supply line 60 and the second contact 70b.
  • the third contact 70c and the fourth contact 70d are connected to the ground line 62.
  • the first limit switch 74A has, for example, a normally closed type first break contact 78a
  • the second limit switch 74B has, for example, a normally closed type second break contact 78b. Therefore, as can be seen from FIG. 6, the motor 40 is rotationally driven when at least one of the first break contact 78a and the second break contact 78b is in the ON state.
  • the first limit switch 74A is mounted between, for example, the mounting bracket 34 and the opening / closing lid 18.
  • the first limit switch 74A is attached at a position where the first break contact 78a of the first limit switch 74A is turned off by the opening / closing lid 18 when the opening / closing lid 18 is in the open state.
  • the opening / closing lid 18 may be attached at a position where the first break contact 78a of the first limit switch 74A is turned off when the opening / closing lid 18 is fully opened.
  • the second limit switch 74B is, for example, the surface of the second metal plate 32B of the motor base 28 facing the arm 42, and is attached above the cam plate 56. Preferably, the second limit switch 74B is attached at a position where the second break contact 78b is turned off by the cam surface 56a of the cam plate 56.
  • the pin 80a of the crank plate 80 is in the upper limit position, and the cam surface 56a of the cam plate 56 is the second limit switch 74B. Since the 2 break contact 78b is pressed, the 2nd break contact 78b is in the off state.
  • the upper limit position refers to a position that cannot be moved upward any more.
  • the second break contact 78b is turned off for a period in which the cam surface 56a is pressing the second break contact 78b of the second limit switch 74B.
  • the cam surface 56a separates from the second break contact 78b, the second break contact 78b is turned on.
  • the transmission mechanism 46 has a crank plate 80 that is outside the cam plate 56 and is attached to the output shaft 54 of the motor 40.
  • the crank plate 80 is provided with a pin 80a that protrudes outward at an eccentric position on the surface opposite to the cam plate 56 side.
  • the arm 42 is composed of a long metal fitting having an L-shaped cross section extending from the base 16 side to the opening / closing lid 18 side. As shown in FIG. 2, the arm 42 has a rotating shaft 82 provided in the central portion, and an elongated hole 84 provided on the base 16 side and through which the pin 80a of the crank plate 80 is inserted. The elongated hole 84 is formed so that its major axis is along the longitudinal direction of the arm 42.
  • the first switch 66A when power is supplied to the power supply line 60 from an external power supply or the like, the first switch 66A is turned on, power is supplied to the motor 40, and the electromagnetic chuck is supplied via the second switch 66B. Power is supplied to 30.
  • the power supply to the motor 40 causes the cam plate 56 and the crank plate 80 to rotate counterclockwise, and the cam surface 56a of the cam plate 56 is seconded accordingly.
  • the second limit switch 74B is separated from the second break contact 78b of the limit switch 74B, and the second limit switch 74B is turned on (time point t2).
  • the opening / closing lid 18 is fully opened (for example, time point t3).
  • the opening / closing lid 18 is held by the electromagnetic chuck 30.
  • the lower limit position refers to a position that cannot be moved further downward.
  • the first limit switch 74A is turned off because the first break contact 78a is pressed by the opening / closing lid 18.
  • the cam plate 56 and the crank plate 80 continue to rotate counterclockwise.
  • the opening / closing lid 18 is closed by stopping the power supply to the power supply line 60. That is, for example, when the combustion gas is detected at the time point t6, the power supply from the external power source or the like to the power supply line 60 is stopped. As a result, the power supply to the electromagnetic chuck 30 and the motor 40 is stopped, and the open / close lid 18 is closed.
  • the opening / closing lid 18 is held in a state of being obliquely upward with the hinge 22 as a rotation fulcrum by the holding mechanism 20, so that the opening 12 is opened. can do. Even if the holding by the electromagnetic chuck 30 is released and the opening / closing lid 18 is closed, the opening / closing lid 18 is driven by the return mechanism 24 to return the opening / closing lid 18 to the holding state by the holding mechanism 20. Can be done. In particular, when the opening / closing lid 18 is held in the open state by the holding mechanism 20, the arm 42 is returned to the initial position, so that the opening / closing lid 18 can be smoothly returned to the open state by the return mechanism 24. ..
  • the holding by the holding mechanism 20 is released, and the opening / closing lid 18 falls downward due to its own weight.
  • the hinge 22 is used as a rotation fulcrum to rotate downward to close the opening 12. That is, the opening 12 can be closed. Even if the power supply from the external power source is cut off, the opening 12 can be closed without using an electric means such as a power storage means, and the power consumption (standby power or the like) can be reduced.
  • the opening / closing lid 18 is held by the holding mechanism 20 in a state of being obliquely upward with the hinge 22 as the rotation fulcrum, so that the opening 12 is opened. Can be done.
  • crank plate 80 that rotates by driving the motor 40 and rotates the arm 42 in the direction of opening the opening / closing lid 18, and a cam plate 56 that rotates together with the crank plate 80 by driving the motor 40.
  • the cam plate 56 has a cam surface 56a that turns off the second break contact 78b based on the return of the arm 42 to the initial position.
  • the damper opening / closing device 10 is a damper opening / closing device installed in the opening 12 for air conditioning, and holds the opening / closing lid 18 and the opening / closing lid 18 during the period when power is being supplied to open the opening 12.
  • the holding mechanism 20 is in the open state and the opening / closing lid 18 is opened to close the opening 12 when the power supply is stopped, and the opening / closing lid 18 is in the closed state during the period when the power is being supplied.
  • it has a return mechanism 24 that returns the opening / closing lid 18 to the state of being held by the holding mechanism 20.
  • the holding mechanism 20 holds the opening / closing lid 18 to open the opening 12.
  • the holding mechanism 20 opens the holding of the opening / closing lid 18 and closes the opening 12. In this way, even if the power supply from the external power source is cut off, the opening 12 can be closed without using an electric means such as a power storage means, and the power consumption (standby power or the like) can be reduced. Then, even if the holding mechanism 20 is released and the opening / closing lid 18 is closed during the period when the power is being supplied, the opening / closing lid 18 is held by the returning mechanism 24. It is possible to return to the state of holding by.
  • the holding mechanism 20 may be an electromagnetic chuck 30 that electromagnetically holds the opening / closing lid 18.
  • the opening / closing lid 18 can be held in the open state by supplying electric power.
  • the movement of the opening / closing lid 18 when the holding of the opening / closing lid 18 by the holding mechanism 20 is released depends on the weight of the opening / closing lid 18. As a result, even if the power supply from the external power source is cut off, the air supply port or the like can be closed by the opening / closing lid 18 without using the power storage means or the like.
  • the open / close lid 18 is in a state in which the open / close lid 18 is held by the holding mechanism 20, and the second contact 70b is an arm after the first contact 70a is turned off. It is turned off based on the return of 42 to the initial position.
  • crank plate 80 that rotates by driving the motor 40 and rotates the arm 42 in the direction of opening the opening / closing lid 18, and a cam plate 56 that rotates together with the crank plate 80 by driving the motor 40.
  • the cam plate 56 has a cam surface 56a that turns off the second contact 70b based on the return of the arm 42 to the initial position.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
  • Air-Flow Control Members (AREA)
  • Closures For Containers (AREA)

Abstract

A damper opening/closing device (10) comprises an opening/closing lid (18), a retention mechanism (20), and a return mechanism (24). The retention mechanism (20) retains the opening/closing lid (18) to place an opening (12) in an open state while power is being supplied, and releases the retention of the opening/closing lid (18) to place the opening (12) in a closed state when the power supply stops. The return mechanism (24) returns the opening/closing lid (18) to a state of retention by the retention mechanism (20) when the opening/closing lid (18) is in a closed state while power is being supplied.

Description

ダンパー開閉装置Damper switchgear
　本発明は、ダンパー開閉装置に関し、例えばコンテナ等に設置された給気口、排気口等の開閉に用いて好適なダンパー開閉装置に関する。 The present invention relates to a damper opening / closing device, for example, a damper opening / closing device suitable for opening / closing an air supply port, an exhaust port, etc. installed in a container or the like.
　ダンパーの開閉を制御する装置として、例えば特開２００６－１８７５２４号公報に記載のダンパー開閉装置がある。 As a device for controlling the opening and closing of the damper, for example, there is a damper opening / closing device described in Japanese Patent Application Laid-Open No. 2006-187524.
　このダンパー開閉装置は、蓄電手段に電荷を蓄積する充電回路及び蓄電手段に蓄積された電荷を放出する放電回路が形成された開閉回路部と、開閉回路部及び外部電源の接続状態に応じ、充電回路及び放電回路のいずれか一方に切替える継電器とを具備する。 This damper opening / closing device charges according to the connection state of the switching circuit unit, the switching circuit unit, and the external power supply, in which a charging circuit for storing electric charge in the storage means and a discharge circuit for discharging the electric charge stored in the storage means are formed. It is provided with a relay that switches to either a circuit or a discharge circuit.
　継電器は、開閉回路部及び外部電源が電気的に接続した通電状態にあるとき、充電回路に切替え、蓄電手段に電荷を蓄積する。また、継電器は、開閉回路部及び外部電源が電気的に切断されたときに、放電回路によって蓄電手段に蓄積された電荷を放出してソレノイドに供給し、ソレノイドのプランジャを駆動させ、ダンパー開閉機構部をプランジャに連動して、ダンパーを開放状態から閉成状態にする。 The relay switches to the charging circuit and accumulates electric charge in the storage means when the switching circuit and the external power supply are electrically connected and energized. Further, when the switching circuit section and the external power supply are electrically cut off, the relay releases the electric charge accumulated in the storage means by the discharge circuit and supplies it to the solenoid to drive the plunger of the solenoid to drive the damper opening / closing mechanism. The part is linked to the plunger to change the damper from the open state to the closed state.
　しかしながら、特開２００６－１８７５２４号公報記載のダンパー開閉装置は、外部電源から給電されている期間に、蓄電手段に電荷を蓄積する必要がある。そのため、電荷を蓄積するための充電回路、電荷を蓄積するための蓄電手段、停電時に、蓄電手段から電荷を放電するための放電回路が必要となる。 However, the damper switchgear described in Japanese Patent Application Laid-Open No. 2006-187524 needs to accumulate electric charges in the power storage means during the period when power is supplied from the external power source. Therefore, a charging circuit for accumulating electric charges, a storage means for accumulating electric charges, and a discharge circuit for discharging electric charges from the electric charge means in the event of a power failure are required.
　また、上述したダンパー開閉装置は、蓄電手段が１つの場合だと、当該蓄電手段が損傷を受けた場合に、ダンパーを閉成できなくなるため、複数の蓄電手段を並列に接続することで解決しているが、回路系が複雑になるおそれがある。 Further, in the above-mentioned damper opening / closing device, if there is only one power storage means, the damper cannot be closed when the power storage means is damaged. Therefore, this can be solved by connecting a plurality of power storage means in parallel. However, the circuit system may become complicated.
　また、蓄電手段に蓄積された電荷の量が少ないと、ダンパーを閉成するだけのエネルギーを確保できず、ダンパーを閉成できないおそれがある。 Also, if the amount of electric charge stored in the power storage means is small, it may not be possible to secure enough energy to close the damper, and the damper may not be closed.
　本発明は、上記の課題を解決するためになされたものであり、外部電源からの給電が絶たれても、蓄電手段等を用いることなく、給気口等を閉じることができ、しかも、外部電源からの給電が再開された場合に、初期の開状態に復帰することができるダンパー開閉装置を提供することを目的とする。 The present invention has been made to solve the above problems, and even if the power supply from the external power source is cut off, the air supply port or the like can be closed without using a power storage means or the like, and the external power supply can be closed. An object of the present invention is to provide a damper opening / closing device capable of returning to an initial open state when power supply from a power source is resumed.
　本発明の一態様に係るダンパー開閉装置は、空調用の開口に設置されるダンパー開閉装置であって、開閉蓋と、電力供給が行われている期間に、前記開閉蓋を保持して前記開口を開状態とし、前記電力供給が停止した際に前記開閉蓋の保持を開放して前記開口を閉状態とする保持機構と、電力供給が行われている期間に、前記開閉蓋が閉状態である場合に、前記開閉蓋を前記保持機構による前記保持の状態に復帰する復帰機構と、を有する。 The damper opening / closing device according to one aspect of the present invention is a damper opening / closing device installed in an opening for air conditioning, and holds the opening / closing lid and the opening / closing lid while power is being supplied. When the power supply is stopped, the opening / closing lid is opened to close the opening, and the opening / closing lid is closed during the period when the power is being supplied. In some cases, it has a return mechanism for returning the opening / closing lid to the holding state by the holding mechanism.
　本発明に係るダンパー開閉装置によれば、外部電源からの給電が絶たれても、蓄電手段等を用いることなく、給気口等を閉じることができ、しかも、外部電源からの給電が再開された場合に、初期の開状態に復帰することができる。 According to the damper opening / closing device according to the present invention, even if the power supply from the external power supply is cut off, the air supply port or the like can be closed without using the power storage means or the like, and the power supply from the external power supply is restarted. In that case, it is possible to return to the initial open state.
本実施形態に係るダンパー開閉装置を上面から見て示す平面図である。It is a top view which shows the damper opening / closing device which concerns on this Embodiment from the top view. 本実施形態に係るダンパー開閉装置を図１における矢印ＩＩの方向から見て示す側面図である。It is a side view which shows the damper opening / closing device which concerns on this embodiment as seen from the direction of arrow II in FIG. 本実施形態に係るダンパー開閉装置を図１における矢印ＩＩＩの方向から見て示す正面図である。It is a front view which shows the damper opening / closing device which concerns on this embodiment as seen from the direction of arrow III in FIG. 復帰機構と保持機構を上面から見て示す平面図である。It is a top view which shows the return mechanism and the holding mechanism. 図５Ａはカムプレートとクランクプレートの組立体を正面から見て示す図であり、図５Ｂは図５ＡにおけるＶＢ－ＶＢ線上の断面図である。FIG. 5A is a front view showing the assembly of the cam plate and the crank plate, and FIG. 5B is a cross-sectional view taken along the line VB-VB in FIG. 5A. 回転制御部を含む回路系の一部を示す配線図である。It is a wiring diagram which shows a part of the circuit system including a rotation control part. 本実施形態に係るダンパー開閉装置の動作を示すタイムチャートである。It is a time chart which shows the operation of the damper opening / closing device which concerns on this embodiment.
　以下、本発明に係るダンパー開閉装置の実施形態例を図１～図７を参照しながら説明する。 Hereinafter, examples of the damper opening / closing device according to the present invention will be described with reference to FIGS. 1 to 7.
　本実施形態に係るダンパー開閉装置１０は、図１～図３に示すように、コンテナ等の床面に設置された例えば給気口等の開口１２に設置される。 As shown in FIGS. 1 to 3, the damper opening / closing device 10 according to the present embodiment is installed in an opening 12 such as an air supply port installed on the floor surface of a container or the like.
　このダンパー開閉装置１０は、床面のうち、開口１２を囲むように設置された枠部１４を有する基台１６と、基台１６に対して回転自在に設置され、開口１２を開閉する開閉蓋１８と、基台１６に固定された保持機構２０と、復帰機構２４とを有する。 The damper opening / closing device 10 has a base 16 having a frame portion 14 installed so as to surround the opening 12 on the floor surface, and an opening / closing lid rotatably installed with respect to the base 16 to open / close the opening 12. It has 18, a holding mechanism 20 fixed to the base 16, and a returning mechanism 24.
　基台１６は、上述した枠部１４のほか、枠部１４の１つの辺に隣接して設置された台座２６を一体に有する。 In addition to the frame portion 14 described above, the base 16 integrally has a pedestal 26 installed adjacent to one side of the frame portion 14.
　開閉蓋１８は、例えば金属板にて、開口１２を閉塞する大きさに形成される。図１の例では、開口１２の形状が上面から見て長方形状であることから、開口１２と同様に長方形状とされている。もちろん、開閉蓋１８の形状は、開口１２の形状に応じて、円形状、楕円形状、トラック形状、多角形状等が挙げられる。なお、トラック形状とは、対向する２つの半円部と、これら半円部を接続する２つの平行な直線部とから構成される形状である。また、開閉蓋１８の上部には、保持機構２０によって係止固定される被係止金具２７が設けられている。 The opening / closing lid 18 is formed, for example, with a metal plate so as to close the opening 12. In the example of FIG. 1, since the shape of the opening 12 is rectangular when viewed from the upper surface, it is rectangular like the opening 12. Of course, the shape of the opening / closing lid 18 may be a circular shape, an elliptical shape, a track shape, a polygonal shape, or the like, depending on the shape of the opening 12. The track shape is a shape composed of two opposing semicircular portions and two parallel straight portions connecting the semicircular portions. Further, a locked metal fitting 27 that is locked and fixed by the holding mechanism 20 is provided on the upper part of the opening / closing lid 18.
　保持機構２０は、外部電源等から電力供給が行われている期間に開閉蓋１８を保持して開口１２を開状態とし、電力供給が停止した際に開閉蓋１８の保持を開放する。 The holding mechanism 20 holds the opening / closing lid 18 to open the opening 12 during the period when power is being supplied from an external power source or the like, and opens the holding of the opening / closing lid 18 when the power supply is stopped.
　具体的には、図２及び図４に示すように、保持機構２０は、モーターベース２８と、モーターベース２８の先端部分に固定された電磁チャック３０と、を有する。モーターベース２８は、基台１６上に、上面から見てＬ字状に設置された２つの金属板（第１金属板３２Ａ及び第２金属板３２Ｂ：図４参照）を有する。第１金属板３２Ａ及び第２金属板３２Ｂは、共に板面が垂直方向に沿うように、すなわち、板面が水平方向に向くように設置される。第１金属板３２Ａは基台１６上に設置され、第２金属板３２Ｂは、基台１６から開閉蓋１８の上方にかけて設置される。但し、第２金属板３２Ｂは開閉蓋１８には固定されていない。また、第２金属板３２Ｂは、開閉蓋１８の開動作を妨げないように、下部の一部が切除されている。 Specifically, as shown in FIGS. 2 and 4, the holding mechanism 20 has a motor base 28 and an electromagnetic chuck 30 fixed to a tip portion of the motor base 28. The motor base 28 has two metal plates (first metal plate 32A and second metal plate 32B: see FIG. 4) installed in an L shape when viewed from the upper surface on the base 16. Both the first metal plate 32A and the second metal plate 32B are installed so that the plate surfaces are along the vertical direction, that is, the plate surfaces are oriented in the horizontal direction. The first metal plate 32A is installed on the base 16, and the second metal plate 32B is installed from the base 16 to above the opening / closing lid 18. However, the second metal plate 32B is not fixed to the opening / closing lid 18. Further, a part of the lower portion of the second metal plate 32B is cut off so as not to interfere with the opening operation of the opening / closing lid 18.
　そして、第２金属板３２Ｂの板面に、電磁チャック３０を取り付けるための断面コ字状の取付金具３４が取り付けられ、この取付金具３４の先端部分に電磁チャック３０が取り付けられている。また、取付金具３４には、保持金具３６が支軸３８によって回転自在に取り付けられている。この保持金具３６は、電磁チャック３０の吸着面と対向する被吸着部位３６ａと、該被吸着部位３６ａの先端に一体に設けられた例えば断面Ｌ字状の係止部位３６ｂとを有する。 Then, a mounting bracket 34 having a U-shaped cross section for mounting the electromagnetic chuck 30 is attached to the plate surface of the second metal plate 32B, and the electromagnetic chuck 30 is attached to the tip portion of the mounting bracket 34. Further, a holding metal fitting 36 is rotatably attached to the mounting metal fitting 34 by a support shaft 38. The holding metal fitting 36 has a suctioned portion 36a facing the suction surface of the electromagnetic chuck 30 and, for example, a locking portion 36b having an L-shaped cross section integrally provided at the tip of the suctioned portion 36a.
　そして、図２の二点鎖線で示すように、取付金具３４が電磁チャック３０で保持（吸着）された状態において、係止部位３６ｂに、開閉蓋１８の上部に設けられた被係止金具２７の一部が係止されることによって、開閉蓋１８が開状態に保持される。電力供給が停止して、電磁チャック３０による保持（吸着）が解除されると、開閉蓋１８の自重によって保持金具３６が支軸３８を中心に回転することから、開閉蓋１８の被係止金具２７が保持金具３６から外れる。その結果、開閉蓋１８は、蝶番２２を回転支点として回転（落下）し、開口１２を閉状態とする（図２の実線参照）。 Then, as shown by the alternate long and short dash line in FIG. 2, in a state where the mounting bracket 34 is held (adsorbed) by the electromagnetic chuck 30, the locked bracket 27 provided on the upper part of the opening / closing lid 18 at the locking portion 36b. The opening / closing lid 18 is held in the open state by locking a part of the lid 18. When the power supply is stopped and the holding (adsorption) by the electromagnetic chuck 30 is released, the holding metal fitting 36 rotates about the support shaft 38 due to the weight of the opening / closing lid 18, so that the locked metal fitting of the opening / closing lid 18 is locked. 27 comes off from the holding bracket 36. As a result, the opening / closing lid 18 rotates (falls) with the hinge 22 as a rotation fulcrum, and the opening 12 is closed (see the solid line in FIG. 2).
　蝶番２２は、基台１６の枠部１４のうち、台座２６が設けられた部分と開閉蓋１８の間に取り付けられている。これにより、先ず、保持機構２０によって、開閉蓋１８は、蝶番２２を回転支点として、斜め上方に向けた状態で保持される。保持機構２０による保持が開放されたときは、開閉蓋１８は自重によって下方に落下することになるが、このとき、蝶番２２を回転支点として下方に回転し、開口１２を閉鎖する。なお、図１の例では、開閉蓋１８のうち、枠部１４の台座２６が設けられた部分に隣接する長辺の左右両側にそれぞれ蝶番２２を取り付けた場合を示す。もちろん、蝶番２２の取付位置や個数は、開閉蓋１８の形状等に応じて適宜設定すればよい。 The hinge 22 is attached between the portion of the frame portion 14 of the base 16 where the pedestal 26 is provided and the opening / closing lid 18. As a result, first, the holding mechanism 20 holds the opening / closing lid 18 in a state of being directed diagonally upward with the hinge 22 as a rotation fulcrum. When the holding by the holding mechanism 20 is released, the opening / closing lid 18 falls downward due to its own weight. At this time, the hinge 22 is used as a rotation fulcrum to rotate downward to close the opening 12. In the example of FIG. 1, among the opening / closing lids 18, hinges 22 are attached to the left and right sides of the long side adjacent to the portion of the frame portion 14 where the pedestal 26 is provided. Of course, the mounting position and the number of hinges 22 may be appropriately set according to the shape of the opening / closing lid 18.
　図２に示すように、復帰機構２４は、電力供給が再開すると、開閉蓋１８を持ち上げて、開閉蓋１８を保持機構２０による保持の状態に復帰させる。また、電力供給中に、万一、電磁チャック３０による保持が外れて開閉蓋１８が閉状態になった場合も、開閉蓋１８を持ち上げて、開閉蓋１８を保持機構２０による保持の状態に復帰させる。 As shown in FIG. 2, when the power supply is resumed, the return mechanism 24 lifts the open / close lid 18 and returns the open / close lid 18 to the state of being held by the holding mechanism 20. Further, even if the holding by the electromagnetic chuck 30 is released and the opening / closing lid 18 is closed during power supply, the opening / closing lid 18 is lifted to return the opening / closing lid 18 to the holding state by the holding mechanism 20. Let me.
　具体的には、図１及び図３に示すように、復帰機構２４は、モータ４０と、モータ４０の回転に伴って開閉蓋１８を上方に回転するアーム４２と、モータ４０の回転駆動を制御する回転制御部４４（図６参照）と、モータ４０の回転力をアーム４２に伝達する伝達機構４６（図２、図５Ａ、図５Ｂ参照）とを有する。 Specifically, as shown in FIGS. 1 and 3, the return mechanism 24 controls the motor 40, the arm 42 that rotates the opening / closing lid 18 upward with the rotation of the motor 40, and the rotational drive of the motor 40. It has a rotation control unit 44 (see FIG. 6) and a transmission mechanism 46 (see FIGS. 2, 5A, 5B) that transmits the rotational force of the motor 40 to the arm 42.
　また、図１に示すように、復帰機構２４は、開閉蓋１８の上面に設けられた把手４８と、把手４８に設けられたヒンジピン５０とを有する。把手４８は、蝶番２２が取り付けられた辺から対向する辺に向かって共に延びる例えば２つのＬ字状の金属板５２ａ及び５２ｂ（図３参照）が対向することにより構成されている。ヒンジピン５０は、２つの金属板５２ａ及び５２ｂの間に連結されている。 Further, as shown in FIG. 1, the return mechanism 24 has a handle 48 provided on the upper surface of the opening / closing lid 18 and a hinge pin 50 provided on the handle 48. The handle 48 is formed by facing, for example, two L-shaped metal plates 52a and 52b (see FIG. 3) extending together from the side to which the hinge 22 is attached toward the opposite side. The hinge pin 50 is connected between the two metal plates 52a and 52b.
　モータ４０は、台座２６上に設置されるが、モータ４０の出力軸５４（回転軸）をモーターベース２８の第２金属板３２Ｂ（図５Ｂ参照）に貫通させて設置される。 The motor 40 is installed on the pedestal 26, but the output shaft 54 (rotating shaft) of the motor 40 is installed so as to penetrate the second metal plate 32B (see FIG. 5B) of the motor base 28.
　伝達機構４６は、図５Ａ及び図５Ｂに示すように、第２金属板３２Ｂを貫通したモータ４０の出力軸５４に取り付けられたカムプレート５６を有する。カムプレート５６は、円盤状の周面の一部が膨出して形成されたカム面５６ａを有する。 As shown in FIGS. 5A and 5B, the transmission mechanism 46 has a cam plate 56 attached to the output shaft 54 of the motor 40 that penetrates the second metal plate 32B. The cam plate 56 has a cam surface 56a formed by bulging a part of a disk-shaped peripheral surface.
　回転制御部４４は、図６に示すように、電源ライン６０と接地ライン６２の間に接続されたダンパー内部回路６４と、電源ライン６０とダンパー内部回路６４との間にそれぞれ接続された第１スイッチ６６Ａ及び第２スイッチ６６Ｂとを有する。第１スイッチ６６Ａは、例えばノーマリオープン型のメーク接点６８ａ（ａ接点）を有し、外部電源等からの電力供給が開始された際にオンとなる。これにより、電源ライン６０を通じてダンパー内部回路６４に電力が供給される。一方、第２スイッチ６６Ｂは、例えばノーマリクローズ型のブレイク接点６８ｂ（ｂ接点）を有し、通常は、外部電源等からの電力が電源ライン６０を通じてダンパー内部回路６４に供給される。 As shown in FIG. 6, the rotation control unit 44 is a first damper internal circuit 64 connected between the power supply line 60 and the ground line 62, and a first damper internal circuit 64 connected between the power supply line 60 and the damper internal circuit 64, respectively. It has a switch 66A and a second switch 66B. The first switch 66A has, for example, a normally open type make contact 68a (a contact), and is turned on when power supply from an external power source or the like is started. As a result, electric power is supplied to the damper internal circuit 64 through the power supply line 60. On the other hand, the second switch 66B has, for example, a normally closed type break contact 68b (b contact), and usually, power from an external power source or the like is supplied to the damper internal circuit 64 through the power supply line 60.
　ダンパー内部回路６４は、例えば４つの接点（第１接点７０ａ～第４接点７０ｄ）を有する。電源ライン６０と第１接点７０ａとの間に上記第１スイッチ６６Ａが接続され、電源ライン６０と第２接点７０ｂとの間に上記第２スイッチ６６Ｂが接続されている。第３接点７０ｃ及び第４接点７０ｄは接地ライン６２に接続されている。 The damper internal circuit 64 has, for example, four contacts (first contact 70a to fourth contact 70d). The first switch 66A is connected between the power supply line 60 and the first contact 70a, and the second switch 66B is connected between the power supply line 60 and the second contact 70b. The third contact 70c and the fourth contact 70d are connected to the ground line 62.
　また、ダンパー内部回路６４は、第１接点７０ａと第３接点７０ｃとの間に接続されたモータ４０と、第１接点７０ａとモータ４０との間に並列接続された第１リミットスイッチ７４Ａ及び第２リミットスイッチ７４Ｂと、第２接点７０ｂと第４接点７０ｄとの間に接続された電磁チャック３０とを有する。 Further, the damper internal circuit 64 includes a motor 40 connected between the first contact 70a and the third contact 70c, a first limit switch 74A and a first limit switch 74A connected in parallel between the first contact 70a and the motor 40. It has a 2-limit switch 74B and an electromagnetic chuck 30 connected between the second contact 70b and the fourth contact 70d.
　第１リミットスイッチ７４Ａは、例えばノーマリクローズ型の第１ブレイク接点７８ａを有し、第２リミットスイッチ７４Ｂは、例えばノーマリクローズ型の第２ブレイク接点７８ｂを有する。従って、モータ４０は、図６からわかるように、第１ブレイク接点７８ａ及び第２ブレイク接点７８ｂのうち、少なくともいずれか一方がオン状態のときに回転駆動する。 The first limit switch 74A has, for example, a normally closed type first break contact 78a, and the second limit switch 74B has, for example, a normally closed type second break contact 78b. Therefore, as can be seen from FIG. 6, the motor 40 is rotationally driven when at least one of the first break contact 78a and the second break contact 78b is in the ON state.
　また、図２に示すように、第１リミットスイッチ７４Ａは、例えば取付金具３４と開閉蓋１８の間に取り付けられる。好ましくは、第１リミットスイッチ７４Ａは、開閉蓋１８が開状態に向かう段階で、開閉蓋１８によって第１リミットスイッチ７４Ａの第１ブレイク接点７８ａがオフ状態となる位置に取り付けられる。もちろん、開閉蓋１８が全開状態となった段階で、第１リミットスイッチ７４Ａの第１ブレイク接点７８ａがオフ状態となる位置に取り付けてもよい。 Further, as shown in FIG. 2, the first limit switch 74A is mounted between, for example, the mounting bracket 34 and the opening / closing lid 18. Preferably, the first limit switch 74A is attached at a position where the first break contact 78a of the first limit switch 74A is turned off by the opening / closing lid 18 when the opening / closing lid 18 is in the open state. Of course, the opening / closing lid 18 may be attached at a position where the first break contact 78a of the first limit switch 74A is turned off when the opening / closing lid 18 is fully opened.
　第２リミットスイッチ７４Ｂは、例えばモーターベース２８の第２金属板３２Ｂのうち、アーム４２に対向する面であって、カムプレート５６の上方に取り付けられる。好ましくは、第２リミットスイッチ７４Ｂは、カムプレート５６のカム面５６ａによって、第２ブレイク接点７８ｂがオフ状態となる位置に取り付けられる。初期状態、すなわち、アーム４２が初期位置にある状態では、図２に示すように、クランクプレート８０のピン８０ａが上限位置にあって、カムプレート５６のカム面５６ａが第２リミットスイッチ７４Ｂの第２ブレイク接点７８ｂを押圧していることから、第２ブレイク接点７８ｂはオフ状態となっている。なお、上限位置とは、これ以上、上方に移動することができない位置を指す。 The second limit switch 74B is, for example, the surface of the second metal plate 32B of the motor base 28 facing the arm 42, and is attached above the cam plate 56. Preferably, the second limit switch 74B is attached at a position where the second break contact 78b is turned off by the cam surface 56a of the cam plate 56. In the initial state, that is, in the state where the arm 42 is in the initial position, as shown in FIG. 2, the pin 80a of the crank plate 80 is in the upper limit position, and the cam surface 56a of the cam plate 56 is the second limit switch 74B. Since the 2 break contact 78b is pressed, the 2nd break contact 78b is in the off state. The upper limit position refers to a position that cannot be moved upward any more.
　従って、モータ４０の回転によってカムプレート５６が回転すると、カム面５６ａが第２リミットスイッチ７４Ｂの第２ブレイク接点７８ｂを押圧している期間にわたって、第２ブレイク接点７８ｂはオフ状態になる。カム面５６ａが第２ブレイク接点７８ｂから離れると、第２ブレイク接点７８ｂはオン状態になる。 Therefore, when the cam plate 56 is rotated by the rotation of the motor 40, the second break contact 78b is turned off for a period in which the cam surface 56a is pressing the second break contact 78b of the second limit switch 74B. When the cam surface 56a separates from the second break contact 78b, the second break contact 78b is turned on.
　伝達機構４６は、図２、図５Ａ及び図５Ｂに示すように、カムプレート５６の外側であって、且つ、モータ４０の出力軸５４に取り付けられたクランクプレート８０を有する。クランクプレート８０は、カムプレート５６側とは反対の面であって、且つ、偏心した位置に外方に突出するピン８０ａが設けられている。 As shown in FIGS. 2, 5A and 5B, the transmission mechanism 46 has a crank plate 80 that is outside the cam plate 56 and is attached to the output shaft 54 of the motor 40. The crank plate 80 is provided with a pin 80a that protrudes outward at an eccentric position on the surface opposite to the cam plate 56 side.
　アーム４２は、図１及び図２に示すように、基台１６側から開閉蓋１８側に延びる長尺の断面Ｌ字状の金具で構成されている。このアーム４２は、図２に示すように、中央部分に設けられた回転軸８２と、基台１６側に設けられ、且つ、クランクプレート８０のピン８０ａが挿通される長孔８４とを有する。長孔８４は、その長軸がアーム４２の長手方向に沿うように形成されている。 As shown in FIGS. 1 and 2, the arm 42 is composed of a long metal fitting having an L-shaped cross section extending from the base 16 side to the opening / closing lid 18 side. As shown in FIG. 2, the arm 42 has a rotating shaft 82 provided in the central portion, and an elongated hole 84 provided on the base 16 side and through which the pin 80a of the crank plate 80 is inserted. The elongated hole 84 is formed so that its major axis is along the longitudinal direction of the arm 42.
　モータ４０の回転駆動によって、クランクプレート８０が一方向（モータ４０の出力軸５４から見て反時計方向）に回転すると、クランクプレート８０のピン８０ａが回転しながらアーム４２の長孔８４に沿って摺動する。これにより、アーム４２は、回転軸８２を中心に反時計方向に回転し、開閉蓋１８側の先端部分４２ａ（図１参照）で把手４８のヒンジピン５０を引っ掛けて上方に持ち上げる。これにより、開閉蓋１８は蝶番２２を回転支点にして上方に回転し、電磁チャック３０によって開状態に保持される。 When the crank plate 80 is rotated in one direction (counterclockwise when viewed from the output shaft 54 of the motor 40) by the rotational drive of the motor 40, the pin 80a of the crank plate 80 rotates along the elongated hole 84 of the arm 42. Sliding. As a result, the arm 42 rotates counterclockwise about the rotation shaft 82, and the hinge pin 50 of the handle 48 is hooked on the tip portion 42a (see FIG. 1) on the opening / closing lid 18 side and lifted upward. As a result, the opening / closing lid 18 rotates upward with the hinge 22 as a rotation fulcrum, and is held in the open state by the electromagnetic chuck 30.
　ここで、本実施形態に係るダンパー開閉装置１０の動作について、図７のタイムチャートも参照しながら説明する。 Here, the operation of the damper opening / closing device 10 according to the present embodiment will be described with reference to the time chart of FIG.
　先ず、時点ｔ１において、外部電源等から電源ライン６０に電力供給が行われると、第１スイッチ６６ＡがＯＮとなって、モータ４０に電力が供給されると共に、第２スイッチ６６Ｂを介して電磁チャック３０に電力が供給される。例えば図２に示すように、モータ４０（図３参照）への電力供給によって、カムプレート５６及びクランクプレート８０が反時計方向に回転し、それに伴って、カムプレート５６のカム面５６ａが第２リミットスイッチ７４Ｂの第２ブレイク接点７８ｂから離間し、第２リミットスイッチ７４ＢがＯＮとなる（時点ｔ２）。また、アーム４２も回転軸８２を中心に反時計方向に回転して、開閉蓋１８を徐々に持ち上げる（図２の二点鎖線参照）。これにより、開閉蓋１８は、蝶番２２を回転支点にして上方に回転する。 First, at time point t1, when power is supplied to the power supply line 60 from an external power supply or the like, the first switch 66A is turned on, power is supplied to the motor 40, and the electromagnetic chuck is supplied via the second switch 66B. Power is supplied to 30. For example, as shown in FIG. 2, the power supply to the motor 40 (see FIG. 3) causes the cam plate 56 and the crank plate 80 to rotate counterclockwise, and the cam surface 56a of the cam plate 56 is seconded accordingly. The second limit switch 74B is separated from the second break contact 78b of the limit switch 74B, and the second limit switch 74B is turned on (time point t2). Further, the arm 42 also rotates counterclockwise around the rotation shaft 82 to gradually lift the opening / closing lid 18 (see the two-dot chain line in FIG. 2). As a result, the opening / closing lid 18 rotates upward with the hinge 22 as a rotation fulcrum.
　そして、カムプレート５６及びクランクプレート８０の回転に伴って、クランクプレート８０のピン８０ａが例えば下限位置、あるいはその付近に到達し、開閉蓋１８が全開状態となった段階（例えば時点ｔ３）で、開閉蓋１８が電磁チャック３０で保持される。なお、下限位置とは、これ以上、下方に移動することができない位置を指す。また、このとき、第１リミットスイッチ７４Ａは、第１ブレイク接点７８ａが開閉蓋１８によって押圧されることからオフ状態となる。この段階では、第２リミットスイッチ７４Ｂを介してモータ４０に電力が供給されているため、カムプレート５６及びクランクプレート８０は反時計方向に回転し続ける。 Then, at the stage where the pin 80a of the crank plate 80 reaches, for example, the lower limit position or the vicinity thereof with the rotation of the cam plate 56 and the crank plate 80, and the opening / closing lid 18 is fully opened (for example, time point t3). The opening / closing lid 18 is held by the electromagnetic chuck 30. The lower limit position refers to a position that cannot be moved further downward. At this time, the first limit switch 74A is turned off because the first break contact 78a is pressed by the opening / closing lid 18. At this stage, since power is supplied to the motor 40 via the second limit switch 74B, the cam plate 56 and the crank plate 80 continue to rotate counterclockwise.
　その後、カムプレート５６及びクランクプレート８０の回転に伴って、カムプレート５６のカム面５６ａが第２リミットスイッチ７４Ｂの第２ブレイク接点７８ｂを押圧することによって、第２ブレイク接点７８ｂはオフ状態になり（時点ｔ４）、モータ４０への電力供給が停止される。このとき、カムプレート５６及びクランクプレート８０は、ピン８０ａが上限位置、あるいはその付近に到達して回転停止するため、アーム４２は初期状態（図２の実線参照）に戻ることとなる。 After that, as the cam plate 56 and the crank plate 80 rotate, the cam surface 56a of the cam plate 56 presses the second break contact 78b of the second limit switch 74B, so that the second break contact 78b is turned off. (Time point t4), the power supply to the motor 40 is stopped. At this time, the cam plate 56 and the crank plate 80 stop rotating when the pin 80a reaches or near the upper limit position, so that the arm 42 returns to the initial state (see the solid line in FIG. 2).
　万一、開閉蓋１８に対する電磁チャック３０による保持が外れ、開閉蓋１８が自重で閉状態となった場合、第１リミットスイッチ７４Ａの第１ブレイク接点７８ａがオン状態となるため（時点ｔ５）、再びモータ４０の回転駆動が開始（再開）され、上述した時点ｔ２～ｔ４での動作が繰り返されて、開閉蓋１８は開状態に復帰される。この復帰動作は、基本的に開閉蓋１８の常時開放（給気状態）を維持する必要があるため、開閉蓋１８の開放駆動を優先していることに基づく。 If the opening / closing lid 18 is released from the holding by the electromagnetic chuck 30 and the opening / closing lid 18 is closed by its own weight, the first break contact 78a of the first limit switch 74A is turned on (time point t5). The rotational drive of the motor 40 is started (restarted) again, the operations at the above-mentioned time points t2 to t4 are repeated, and the open / close lid 18 is returned to the open state. This return operation is based on giving priority to the opening drive of the opening / closing lid 18 because it is basically necessary to maintain the opening / closing lid 18 at all times (air supply state).
　これに対して、非常時（燃焼ガス検知時等）では、電源ライン６０への給電を停止することで、開閉蓋１８を閉状態にしている。すなわち、例えば時点ｔ６において、燃焼ガス検知があった場合、外部電源等から電源ライン６０への電力供給を停止する。これによって、電磁チャック３０及びモータ４０への電力供給が停止され、開閉蓋１８は閉状態となる。 On the other hand, in an emergency (when detecting combustion gas, etc.), the opening / closing lid 18 is closed by stopping the power supply to the power supply line 60. That is, for example, when the combustion gas is detected at the time point t6, the power supply from the external power source or the like to the power supply line 60 is stopped. As a result, the power supply to the electromagnetic chuck 30 and the motor 40 is stopped, and the open / close lid 18 is closed.
　このように、本実施形態に係るダンパー開閉装置１０は、保持機構２０によって、開閉蓋１８を、蝶番２２を回転支点として、斜め上方に向けた状態で保持することで、開口１２を開状態にすることができる。万一、電磁チャック３０による保持が外れて開閉蓋１８が閉状態になった場合でも、復帰機構２４によって開閉蓋１８を駆動して、開閉蓋１８を保持機構２０による保持の状態に復帰させることができる。特に、保持機構２０によって、開閉蓋１８を開状態に保持したとき、アーム４２を初期位置に戻すようにしたので、復帰機構２４による開閉蓋１８の開状態への復帰をスムーズに行うことができる。 As described above, in the damper opening / closing device 10 according to the present embodiment, the opening / closing lid 18 is held in a state of being obliquely upward with the hinge 22 as a rotation fulcrum by the holding mechanism 20, so that the opening 12 is opened. can do. Even if the holding by the electromagnetic chuck 30 is released and the opening / closing lid 18 is closed, the opening / closing lid 18 is driven by the return mechanism 24 to return the opening / closing lid 18 to the holding state by the holding mechanism 20. Can be done. In particular, when the opening / closing lid 18 is held in the open state by the holding mechanism 20, the arm 42 is returned to the initial position, so that the opening / closing lid 18 can be smoothly returned to the open state by the return mechanism 24. ..
　一方、非常時等において、保持機構２０に対する電力供給が停止すると、保持機構２０による保持が開放され、開閉蓋１８はその自重によって下方に落下することになる。このとき、蝶番２２を回転支点として下方に回転し、開口１２を閉鎖する。すなわち、開口１２を閉状態にすることができる。外部電源からの給電が絶たれても、蓄電手段等の電気的手段を用いることなく、開口１２を閉じることができ、消費電力（待機電力等）の低減を図ることができる。 On the other hand, when the power supply to the holding mechanism 20 is stopped in an emergency or the like, the holding by the holding mechanism 20 is released, and the opening / closing lid 18 falls downward due to its own weight. At this time, the hinge 22 is used as a rotation fulcrum to rotate downward to close the opening 12. That is, the opening 12 can be closed. Even if the power supply from the external power source is cut off, the opening 12 can be closed without using an electric means such as a power storage means, and the power consumption (standby power or the like) can be reduced.
　外部電源からの給電が再開された場合は、再び保持機構２０によって、開閉蓋１８を、蝶番２２を回転支点として、斜め上方に向けた状態で保持することで、開口１２を開状態にすることができる。 When the power supply from the external power source is restarted, the opening / closing lid 18 is held by the holding mechanism 20 in a state of being obliquely upward with the hinge 22 as the rotation fulcrum, so that the opening 12 is opened. Can be done.
　また、本実施形態では、モータ４０の駆動によって回転し、開閉蓋１８を開く方向にアーム４２を回転するクランクプレート８０と、モータ４０の駆動によってクランクプレート８０と共に回転するカムプレート５６とを有する。カムプレート５６は、アーム４２の初期位置への復帰に基づいて、第２ブレイク接点７８ｂをオフ状態にするカム面５６ａを有する。 Further, in the present embodiment, there is a crank plate 80 that rotates by driving the motor 40 and rotates the arm 42 in the direction of opening the opening / closing lid 18, and a cam plate 56 that rotates together with the crank plate 80 by driving the motor 40. The cam plate 56 has a cam surface 56a that turns off the second break contact 78b based on the return of the arm 42 to the initial position.
　モータ４０によって、クランクプレート８０とカムプレート５６とを共に回転させることで、クランクプレート８０によって開閉蓋１８を開く方向にアーム４２を回転する動作と、アーム４２の初期位置への復帰に基づいてカムプレート５６のカム面５６ａで第２ブレイク接点７８ｂをオフ状態にする動作とを１つのモータ４０で行うことができ、構造の簡単化及び部品点数の削減を有効に図ることができる。 By rotating the crank plate 80 and the cam plate 56 together by the motor 40, the cam is rotated based on the operation of rotating the arm 42 in the direction of opening the opening / closing lid 18 by the crank plate 80 and the return of the arm 42 to the initial position. The operation of turning off the second break contact 78b on the cam surface 56a of the plate 56 can be performed by one motor 40, and the structure can be simplified and the number of parts can be effectively reduced.
　上記実施形態をまとめると以下のようになる。
［１］　ダンパー開閉装置１０は、空調用の開口１２に設置されるダンパー開閉装置であって、開閉蓋１８と、電力供給が行われている期間に、開閉蓋１８を保持して開口１２を開状態とし、電力供給が停止した際に開閉蓋１８の保持を開放して開口１２を閉状態とする保持機構２０と、電力供給が行われている期間に、開閉蓋１８が閉状態である場合に、開閉蓋１８を保持機構２０による保持の状態に復帰する復帰機構２４と、を有する。 The above embodiments can be summarized as follows.
[1] The damper opening / closing device 10 is a damper opening / closing device installed in the opening 12 for air conditioning, and holds the opening / closing lid 18 and the opening / closing lid 18 during the period when power is being supplied to open the opening 12. The holding mechanism 20 is in the open state and the opening / closing lid 18 is opened to close the opening 12 when the power supply is stopped, and the opening / closing lid 18 is in the closed state during the period when the power is being supplied. In this case, it has a return mechanism 24 that returns the opening / closing lid 18 to the state of being held by the holding mechanism 20.
　これにより、先ず、電力供給が行われている期間では、保持機構２０は、開閉蓋１８を保持して開口１２を開状態とする。電力供給が停止すると、保持機構２０は、開閉蓋１８の保持を開放して、開口１２を閉状態とする。このように、外部電源からの給電が絶たれても、蓄電手段等の電気的手段を用いることなく、開口１２を閉じることができ、消費電力（待機電力等）の低減を図ることができる。そして、電力供給が行われている期間に、万一、保持機構２０による保持が外れて開閉蓋１８が閉状態となった場合であっても、復帰機構２４によって、開閉蓋１８を保持機構２０による保持の状態に復帰させることができる。 As a result, first, during the period when the electric power is being supplied, the holding mechanism 20 holds the opening / closing lid 18 to open the opening 12. When the power supply is stopped, the holding mechanism 20 opens the holding of the opening / closing lid 18 and closes the opening 12. In this way, even if the power supply from the external power source is cut off, the opening 12 can be closed without using an electric means such as a power storage means, and the power consumption (standby power or the like) can be reduced. Then, even if the holding mechanism 20 is released and the opening / closing lid 18 is closed during the period when the power is being supplied, the opening / closing lid 18 is held by the returning mechanism 24. It is possible to return to the state of holding by.
［２］　本実施形態において、保持機構２０は、開閉蓋１８を電磁的に保持する電磁チャック３０であってもよい。電力供給によって開閉蓋１８を開状態に保持することができる。 [2] In the present embodiment, the holding mechanism 20 may be an electromagnetic chuck 30 that electromagnetically holds the opening / closing lid 18. The opening / closing lid 18 can be held in the open state by supplying electric power.
［３］　本実施形態において、保持機構２０による開閉蓋１８の保持が開放された際の開閉蓋１８の動きは、開閉蓋１８の自重による。これにより、外部電源からの給電が絶たれても、蓄電手段等を用いることなく、開閉蓋１８によって給気口等を閉じることができる。 [3] In the present embodiment, the movement of the opening / closing lid 18 when the holding of the opening / closing lid 18 by the holding mechanism 20 is released depends on the weight of the opening / closing lid 18. As a result, even if the power supply from the external power source is cut off, the air supply port or the like can be closed by the opening / closing lid 18 without using the power storage means or the like.
［４］　本実施形態において、復帰機構２４は、第１接点７０ａ及び第２接点７０ｂと、第１接点７０ａ及び第２接点７０ｂのうち、少なくとも１つの接点のオン状態に基づいて回転駆動するモータ４０と、モータ４０の回転駆動に伴って、初期位置から開閉蓋１８を開く方向に回転するアーム４２とを有し、第１接点７０ａは、開閉蓋１８の開状態に基づいてオフ状態とされ、第２接点７０ｂは、アーム４２の初期位置への復帰に基づいてオフ状態とされる。これにより、保持機構２０によって、開閉蓋１８を開状態に保持したとき、アーム４２を初期位置に戻すようにしたので、復帰機構２４による開閉蓋１８の開状態への復帰をスムーズに行うことができる。 [4] In the present embodiment, the return mechanism 24 is a motor that is rotationally driven based on the ON state of at least one of the first contact 70a and the second contact 70b and the first contact 70a and the second contact 70b. It has 40 and an arm 42 that rotates in a direction of opening the opening / closing lid 18 from an initial position as the motor 40 is rotationally driven, and the first contact 70a is turned off based on the open state of the opening / closing lid 18. The second contact 70b is turned off based on the return of the arm 42 to the initial position. As a result, when the open / close lid 18 is held in the open state by the holding mechanism 20, the arm 42 is returned to the initial position, so that the return mechanism 24 can smoothly return the open / close lid 18 to the open state. it can.
［５］　本実施形態において、開閉蓋１８の開状態は、開閉蓋１８が保持機構２０によって保持された状態であり、第２接点７０ｂは、第１接点７０ａがオフ状態となった後に、アーム４２の初期位置への復帰に基づいてオフ状態とされる。 [5] In the present embodiment, the open / close lid 18 is in a state in which the open / close lid 18 is held by the holding mechanism 20, and the second contact 70b is an arm after the first contact 70a is turned off. It is turned off based on the return of 42 to the initial position.
［６］　本実施形態において、モータ４０の駆動によって回転し、開閉蓋１８を開く方向にアーム４２を回転するクランクプレート８０と、モータ４０の駆動によってクランクプレート８０と共に回転するカムプレート５６とを有し、カムプレート５６は、アーム４２の初期位置への復帰に基づいて、第２接点７０ｂをオフ状態にするカム面５６ａを有する。 [6] In the present embodiment, there is a crank plate 80 that rotates by driving the motor 40 and rotates the arm 42 in the direction of opening the opening / closing lid 18, and a cam plate 56 that rotates together with the crank plate 80 by driving the motor 40. However, the cam plate 56 has a cam surface 56a that turns off the second contact 70b based on the return of the arm 42 to the initial position.
　モータ４０によって、クランクプレート８０とカムプレート５６とを共に回転させる。これにより、クランクプレート８０によって開閉蓋１８を開く方向にアーム４２を回転する動作と、アーム４２の初期位置への復帰に基づいてカムプレート５６のカム面５６ａで第２接点７０ｂをオフ状態にする動作とを１つのモータで行うことができ、構造の簡単化及び部品点数の削減を有効に図ることができる。 The motor 40 rotates the crank plate 80 and the cam plate 56 together. As a result, the second contact 70b is turned off on the cam surface 56a of the cam plate 56 based on the operation of rotating the arm 42 in the direction of opening the opening / closing lid 18 by the crank plate 80 and the return of the arm 42 to the initial position. The operation can be performed by one motor, and the structure can be simplified and the number of parts can be effectively reduced.
　なお、本発明に係るダンパー開閉装置は、上述の実施形態に限らず、本発明の要旨を逸脱することなく、種々の構成を採り得ることはもちろんである。 It should be noted that the damper switchgear according to the present invention is not limited to the above-described embodiment, and of course, various configurations can be adopted without departing from the gist of the present invention.

Claims (6)

  1. 　空調用の開口（１２）に設置されるダンパー開閉装置（１０）であって、
    　開閉蓋（１８）と、
    　電力供給が行われている期間に、前記開閉蓋（１８）を保持して前記開口（１２）を開状態とし、前記電力供給が停止した際に前記開閉蓋（１８）の保持を開放して前記開口（１２）を閉状態とする保持機構（２０）と、
    　電力供給が行われている期間に、前記開閉蓋（１８）が閉状態である場合に、前記開閉蓋（１８）を前記保持機構（２０）による前記保持の状態に復帰する復帰機構（２４）と、を有する、ダンパー開閉装置（１０）。     It is a damper opening / closing device (10) installed in the opening (12) for air conditioning.
    Opening and closing lid (18) and
    While the power supply is being performed, the opening / closing lid (18) is held to open the opening (12), and when the power supply is stopped, the holding of the opening / closing lid (18) is opened. A holding mechanism (20) that closes the opening (12) and
    A return mechanism (24) that returns the open / close lid (18) to the holding state by the holding mechanism (20) when the opening / closing lid (18) is closed during the period when power is being supplied. And, a damper opening / closing device (10).
  2. 　請求項１記載のダンパー開閉装置（１０）において、
    　前記保持機構（２０）は、前記開閉蓋（１８）を電磁的に保持する電磁チャック（３０）を有する、ダンパー開閉装置（１０）。     In the damper switchgear (10) according to claim 1,
    The holding mechanism (20) is a damper opening / closing device (10) having an electromagnetic chuck (30) that electromagnetically holds the opening / closing lid (18).
  3. 　請求項１又は２記載のダンパー開閉装置（１０）において、
    　前記保持機構（２０）による前記開閉蓋（１８）の保持が開放された際の前記開閉蓋（１８）の動きは、前記開閉蓋（１８）の自重によるものである、ダンパー開閉装置（１０）。     In the damper opening / closing device (10) according to claim 1 or 2.
    The movement of the opening / closing lid (18) when the holding of the opening / closing lid (18) by the holding mechanism (20) is released is due to the weight of the opening / closing lid (18). ..
  4. 　請求項１～３のいずれか１項に記載のダンパー開閉装置（１０）において、
    　前記復帰機構（２４）は、
    　第１接点（７０ａ）及び第２接点（７０ｂ）と、
    　前記第１接点（７０ａ）及び前記第２接点（７０ｂ）のうち、少なくとも１つの接点のオン状態に基づいて回転駆動するモータ（４０）と、
    　前記モータ（４０）の回転駆動に伴って、初期位置から前記開閉蓋（１８）を開く方向に回転するアーム（４２）とを有し、
    　前記第１接点（７０ａ）は、前記開閉蓋（１８）の開状態に基づいてオフ状態とされ、
    　前記第２接点（７０ｂ）は、前記アーム（４２）の前記初期位置への復帰に基づいてオフ状態とされる、ダンパー開閉装置（１０）。     The damper switchgear (10) according to any one of claims 1 to 3.
    The return mechanism (24)
    With the first contact (70a) and the second contact (70b),
    A motor (40) that is rotationally driven based on the ON state of at least one of the first contact (70a) and the second contact (70b).
    It has an arm (42) that rotates in the direction of opening the opening / closing lid (18) from the initial position as the motor (40) is rotationally driven.
    The first contact (70a) is turned off based on the open state of the opening / closing lid (18).
    The damper opening / closing device (10) is such that the second contact (70b) is turned off based on the return of the arm (42) to the initial position.
  5. 　請求項４記載のダンパー開閉装置（１０）において、
    　前記開閉蓋（１８）の開状態は、前記開閉蓋（１８）が前記保持機構（２０）によって保持された状態であり、
    　前記第２接点（７０ｂ）は、前記第１接点（７０ａ）がオフ状態となった後に、前記アーム（４２）の前記初期位置への復帰に基づいてオフ状態とされる、ダンパー開閉装置（１０）。     In the damper switchgear (10) according to claim 4,
    The open state of the open / close lid (18) is a state in which the open / close lid (18) is held by the holding mechanism (20).
    The second contact (70b) is turned off based on the return of the arm (42) to the initial position after the first contact (70a) is turned off. ).
  6. 　請求項４又は５記載のダンパー開閉装置（１０）において、
    　前記モータ（４０）の駆動によって回転し、前記開閉蓋（１８）を開く方向に前記アーム（４２）を回転するクランクプレート（８０）と、
    　前記モータ（４０）の駆動によって前記クランクプレート（８０）と共に回転するカムプレート（５６）とを有し、
    　前記カムプレート（５６）は、前記アーム（４２）の前記初期位置への復帰に基づいて、前記第２接点（７０ｂ）をオフ状態にするカム面（５６ａ）を有する、ダンパー開閉装置（１０）。     In the damper switchgear (10) according to claim 4 or 5.
    A crank plate (80) that rotates by driving the motor (40) and rotates the arm (42) in the direction of opening the opening / closing lid (18).
    It has a cam plate (56) that rotates together with the crank plate (80) by being driven by the motor (40).
    The cam plate (56) has a cam surface (56a) that turns off the second contact (70b) based on the return of the arm (42) to the initial position. ..
PCT/JP2020/009162 2019-03-14 2020-03-04 Damper opening/closing device WO2020184333A1 (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0210050A (en) * 1988-06-29 1990-01-12 Yukihiro Obata Drive device for damper for ventilation, valve body opening closing device thereof, and electrid motor thereof
JPH05277200A (en) * 1992-04-16 1993-10-26 Kuken Denki Kk Opening/closing device for fire prevention damper
JP2006187524A (en) 2005-01-07 2006-07-20 Dairitsu:Kk Damper opening and closing device
JP2008039313A (en) * 2006-08-08 2008-02-21 Matsushita Electric Ind Co Ltd Ventilator
JP2014213814A (en) * 2013-04-30 2014-11-17 株式会社新来島どっく Hold fan duct structure of automobile carrier

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4333489A (en) * 1978-09-11 1982-06-08 Actionair Equipment Limited Spring-motor dual-functioning mechanism
JPS5848513Y2 (en) * 1980-06-09 1983-11-05 株式会社 熊平製作所 Duct damper opening/closing device
JPS5941473Y2 (en) * 1980-06-09 1984-11-30 株式会社東芝 shutter device
JPS598730B2 (en) * 1980-12-29 1984-02-27 東京電機産業株式会社 Damper opening/closing device
US5533929A (en) * 1993-12-29 1996-07-09 Attridge, Jr.; Russell G. Remotely trippable and resettable damper
JP3491594B2 (en) * 2000-02-16 2004-01-26 株式会社北村製作所 Outdoor hood with damper function

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0210050A (en) * 1988-06-29 1990-01-12 Yukihiro Obata Drive device for damper for ventilation, valve body opening closing device thereof, and electrid motor thereof
JPH05277200A (en) * 1992-04-16 1993-10-26 Kuken Denki Kk Opening/closing device for fire prevention damper
JP2006187524A (en) 2005-01-07 2006-07-20 Dairitsu:Kk Damper opening and closing device
JP2008039313A (en) * 2006-08-08 2008-02-21 Matsushita Electric Ind Co Ltd Ventilator
JP2014213814A (en) * 2013-04-30 2014-11-17 株式会社新来島どっく Hold fan duct structure of automobile carrier

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