WO2020004985A1 - Commutateur de détection de blocage de porte d'ascenseur - Google Patents

Commutateur de détection de blocage de porte d'ascenseur Download PDF

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Publication number
WO2020004985A1
WO2020004985A1 PCT/KR2019/007830 KR2019007830W WO2020004985A1 WO 2020004985 A1 WO2020004985 A1 WO 2020004985A1 KR 2019007830 W KR2019007830 W KR 2019007830W WO 2020004985 A1 WO2020004985 A1 WO 2020004985A1
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WO
WIPO (PCT)
Prior art keywords
elevator
space
switch
door
conductors
Prior art date
Application number
PCT/KR2019/007830
Other languages
English (en)
Korean (ko)
Inventor
강명덕
Original Assignee
강명덕
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
Priority claimed from KR1020180132265A external-priority patent/KR102119620B1/ko
Application filed by 강명덕 filed Critical 강명덕
Priority to CN201980043349.4A priority Critical patent/CN112384463A/zh
Publication of WO2020004985A1 publication Critical patent/WO2020004985A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B13/00—Doors, gates, or other apparatus controlling access to, or exit from, cages or lift well landings
    • B66B13/02—Door or gate operation
    • B66B13/06—Door or gate operation of sliding doors
    • B66B13/08—Door or gate operation of sliding doors guided for horizontal movement
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B13/00—Doors, gates, or other apparatus controlling access to, or exit from, cages or lift well landings
    • B66B13/24—Safety devices in passenger lifts, not otherwise provided for, for preventing trapping of passengers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/70—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard
    • H01H13/702—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard with contacts carried by or formed from layers in a multilayer structure, e.g. membrane switches
    • H01H13/705—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard with contacts carried by or formed from layers in a multilayer structure, e.g. membrane switches characterised by construction, mounting or arrangement of operating parts, e.g. push-buttons or keys

Definitions

  • the present invention relates to a lift clearance detection switch, and in particular, by installing a switch body in the space between the elevator door and the elevator wall, so that a body part such as a finger is not sucked into the space while the elevator door is opened. By doing so, it does not injure people, but relates to a lift clearance detection switch that is easier to install and maintain in a simpler configuration.
  • elevators are elevator cars that move passengers while moving up and down along a hoistway formed in a vertical direction inside a building with passengers inside, motors and hoists for generating a predetermined power, and button operation of passengers. And control means for controlling the motor and the hoist to move the elevator car to the floor.
  • the elevator car provided in the elevator device is provided with a car door that is selectively opened and closed, and in addition to each floor platform of the building is provided with an elevator door that allows the passengers to get on and off the floor while interlocking with the car door.
  • the present invention relates to a device for preventing hand pinching of an elevator, and to prevent a passenger's hand or foreign substances from being caught in an elevator door formed by installing a car door and a landing door in a fixing part including an upper frame, a left frame, and a right frame.
  • a fixing part including an upper frame, a left frame, and a right frame.
  • an upper frame left sensor and an upper frame right sensor made of an object reflection sensor which emits detection light vertically downward on both inner side surfaces of the upper frame corresponding to the outer surfaces of the boarding door and the card door.
  • a pair of upper frame center sensors each including a pair of object reflection sensors which emits detection light vertically downwards on the inner wall of the center of the upper frame corresponding to the outer surfaces of the boarding door and the card door, respectively. It is installed and configured, the passenger's hand or various foreign objects at the time of opening and closing operation of the elevator door This is such a meal can be prevented.
  • the public utility model is a structure that detects a hand or a foreign object through the detection of the detection light, for example, even if a box or bag that does not affect the opening and closing of the door approaches the door to control the opening and closing of the door arbitrarily Since the forced opening and closing control of the door is frequent in a particular situation, it is inconvenient for passengers and also has a structurally complex problem because a number of sensors must be installed on the upper frame.
  • Japanese Laid-Open Patent Publication No. 2009-515798 has been proposed to solve the problems of the above-mentioned utility model.
  • This relates to a door assembly, wherein a sensor made of an electrically conductive film or the like is provided on the surface or the edge of the door panel or the return panel, and a sensor having the same structure is provided in the door frame member.
  • the control panel controls the opening and closing of the door panel or the return panel to prevent the hand from being caught between the elevator door and the frame.
  • the public utility model can only prevent the injury by opening and closing the door when the human body is detected, and does not provide visual information such as warning or emergency directly to the door, so if the luminaire is turned off due to power failure, There is a problem such as being difficult to determine the standing position of yourself.
  • Patent No. 10-1238068 has been proposed to solve the problem of the safety devices for preventing the pinching of the door.
  • the present invention relates to a safety device for preventing hand pinching of an elevator door, which is located between an elevator car and a car frame provided in a platform and an elevator frame and is opened on the surface of the elevator door that is opened and closed by driving a door driving motor controlled by a control means.
  • a conductive conductive waveguide sheet for door sensing current of the human body control means for determining whether the human body is a micro current when the current is detected through the conductive conductive waveguide sheet for the door, and installed at one side of the edge of the conductive waveguide sheet for the door It is characterized by consisting of a first LED which is illuminated by the control of the control means to irradiate light to the conductive waveguide sheet for the door.
  • a human body current is detected due to hand contact with an edge of a frame such as an elevator door or a platform, the elevator door is forcibly controlled to prevent hands from being caught between the elevator door and the frame, and at the same time, as a conductive waveguide sheet. Irradiation of light can also give the user visual alertness.
  • the above-mentioned Patent No. 10-1238068 installs a conductive waveguide sheet on the surface of the door to irradiate light onto the surface of the door, but in general, the door is wider in order to allow a person to pass through without interference.
  • LED light installed on one side of the side did not reach far enough to the opposite side, the amount of light irradiated to the surface of the door is small, there is a problem of low visibility as the illuminance is low.
  • lift pinch prevention devices applied to the known technology detected a finger pinched between the lift and the wall using a sensor, for this purpose, to convert the detection signal generated by the sensor unit, the control unit, the sensor to pass to the control unit Since it is equipped with a separate configuration, such as a converter, not only the installation cost increases, but also because the configuration is relatively large, there was a problem that the cost of maintenance is high when each component is broken.
  • the present invention has been invented to solve the above problems, the object of which is to install a switch body into the space between the elevator door and the elevator wall, the elevator door is opened while the body part, such as a finger is sucked along the elevator door into the space.
  • the purpose of the present invention is to provide a lift clearance detection switch that is easy to install and maintain in a simpler configuration but not to injure people.
  • the present invention for achieving the above technical problem is formed of a soft material and a predetermined space 101 is formed on the inside, protruding portion protruding in the inner direction of the space 101 at the lower end of the space 101 103 is formed and separated into the left main body 1021 and the right main body 1022 by the incision 104 around the protrusion 103, one side is connected to the internal opening and closing, the elevator 200 Switch body 100 provided in each gap of the front and rear doors of the; A first conductor 131 of a positive pole and a second conductor 132 of a negative pole disposed on the inner surface of the space 101 so as to face each other; And a controller configured to stop driving of the elevator 200 and the elevator door 210 by detecting when the conductors 131 and 132 are in contact with an external force and a current flows.
  • Another surface of the present invention is formed of a soft material and a predetermined space 101 is formed on the inside, the protrusions 103 are formed to protrude in the inner direction of the space 101 at both ends of the middle of the space 101 Is formed, is separated into the upper body 1023 and the lower body 1024 by the incision 104 around the protrusion 103, one side is connected to the internal opening and closing, the front of the elevator 200 And a switch body 100 provided in each gap of the rear door.
  • 134 is a control unit for stopping the driving of the elevator 200 and the elevator door 210 by detecting when the current flows in contact with the external force.
  • Another surface of the present invention is formed of a soft material and a predetermined space 101 is formed on the inside, protruding portion protruding in the inner direction of the space 101 at both ends of the middle of the space 101 ( 103 is formed and separated into the upper body 1023 and the lower body 1024 by the incision 104 around the protrusion 103, one side is connected to the internal opening and closing, the elevator 200 Switch body 100 is provided in each gap of the front and rear doors of the; On the inner surface of the space 101 are arranged side by side with each other, provided in the inner side of the lower body 1024 and the fifth conductor 135 of the positive pole provided inside the upper body 1023, the lower body ( A sixth conductor 136 of the -pole provided in the entire region of 1024; And a control unit which stops driving of the elevator 200 and the elevator door 210 by detecting when the conductors 135 and 136 are in contact with each other by an external force and a current flows.
  • the end of the elevator door 210 is characterized in that the switch body 100 is coupled to the elevator door fixing member 120.
  • the switch body 100 and each of the conductors are formed in a plurality, separated, it is characterized in that can be used to produce each of the length to connect to each other.
  • the elevator clearance pinch detection switch of the present invention is simply inserted into the elevator door fixing member between an existing elevator and a wall, and the first and fourth conductors are controlled to drive the elevator. Since only the control unit to be connected to the facility is significantly simpler has the effect of reducing the manufacturing cost.
  • the configuration of the sensor unit, the control unit, a transducer for converting the detection signal generated by the sensor and transmitting it to the control unit in order to prevent the pinching of the existing but the cost according to the present invention to about 1/10 It can be reduced to have an economic effect.
  • the gap between the elevator and the wall that is, both the gap between the landing and the wall and the elevator car and the elevator door can be installed because it is easy to install, in particular, in the case of the existing elevator is installed as an attachment type Therefore, in case of breakdown or maintenance, simply remove the lift clearance detection switch and attach a new lift clearance detection switch, so maintenance is very simple, reducing labor and economical effect.
  • FIG. 1 is a view schematically showing the appearance of a lift installed elevator lift pinch detection switch of the present invention.
  • Figure 2 is a view schematically showing the appearance of the elevator car equipped with a lift clearance detection switch of the present invention.
  • 3A and 3B are plan cross-sectional views schematically showing the appearance of the first embodiment of the lift clearance detection switch of the present invention.
  • FIG. 4 is a view for explaining the assembly process of the internal configuration in the first embodiment of FIG.
  • Fig. 5 is a plan sectional view schematically showing the appearance of a second embodiment of the lift clearance detection switch of the present invention.
  • FIG. 6 is a cross-sectional view taken along the line A-A of FIG. 3B.
  • FIG. 7 is a view illustrating a configuration in which the lift clearance detection switch of FIGS. 3 and 4 is connected in plurality.
  • FIG. 8 is a plan sectional view schematically showing the appearance of the third embodiment of the lift clearance detection switch of the present invention.
  • 9 and 10 are views for explaining the assembly process of the internal configuration of the lift clearance detection switch of FIG.
  • FIG. 11 is a view illustrating a process in which the lift clearance detection switch of FIG. 8 is coupled to an elevator door.
  • FIG 14 to 16 are views showing fifth embodiments of the lift clearance detection switch of the present invention.
  • any component when a part of the present specification is said to "include” any component, this means that it may further include other components, without excluding the other components unless otherwise stated.
  • the terms “... unit”, “module”, etc. described in the specification mean a unit for processing at least one function or operation, which may be implemented in hardware or software or a combination of hardware and software. .
  • FIG. 1 is a view showing a state of a lift of the elevator equipped with a lift clearance detection switch of the present invention
  • Figure 2 is a view schematically showing a state of the elevator car with a lift clearance detection switch of the present invention
  • Figure 3a 3B is a plan sectional view schematically illustrating a first embodiment of the lift clearance detection switch of the present invention
  • FIG. 4 is a view for explaining an assembly process of internal components in the first embodiment of FIG. 3
  • FIG. 5 is FIG. 6 is a cross-sectional view schematically illustrating a second embodiment of the lift clearance detection switch of the present invention
  • FIG. 6 is a cross-sectional view taken along line AA of FIG. 3B
  • FIG. 7 is a view illustrating a plurality of lift clearance detection switches of FIGS. 3 and 4. It is a figure which shows the structure.
  • the lift clearance detection switch of the present invention is formed of a soft material and a predetermined space 101 is formed inside, and an upper portion of the space 101 is formed at a lower end of the space 101.
  • a protrusion 103 is formed to protrude in a direction, and is separated into a left main body 1021 and a right main body 1022 by the incision 104 about the protrusion 103, but one side is connected to open and close the interior.
  • the switch body 100 is provided in each gap of the front and rear doors of the elevator (200).
  • the space 101 is formed in a shape in which the trapezoids face each other in a reverse direction.
  • the protrusion 103 is shown to be formed only on one side, but can also be formed on both sides to be symmetrical upper and lower.
  • the switch body 100 for example, is formed of a soft material such as silicon or rubber, which is easily deformed at the same time to minimize the damage to the finger when the fingers, etc. in each gap of the elevator 200.
  • the conductor provided inside is in contact with each other so that the current can easily flow.
  • each of the inclined portions formed inclined in contact with each other inside the switch body 100 is formed with a protrusion 103, this protrusion 103 is formed to play a buffer role, for example, the switch body by an external force When 100 is pressurized to be easily restored to its original state. At the same time, it is to allow only the middle portion of the conductor to be in contact so that the conductors of different poles to be described later can be smoothly contacted.
  • the switch main body 100 is divided into two sides, the upper part is connected, and the lower part is formed in an open shape and is divided into a left main body 1021 and a right main body 1022.
  • the left main body 1021 and the right main body 1022 have the elasticity of the protrusion 106 serving as a hinge, the left main body 1021 and the right main body 1022 can be unfolded from side to side as shown in FIG. 4.
  • the first electrode 131 of the positive pole and the second conductor 132 of the negative pole is provided. It is preferable that the first and second conductors 131 and 132 use a material such as copper having good conductivity, such as a copper plate.
  • the switch body 100 has a cross-sectional shape of '', and the first and second conductors 131 and 132 face each other on the spaced inner side surfaces of the inside of the switch body 100. And to be attached to each other as much as possible.
  • the first and second conductors 131 and 132 are configured to protrude a predetermined length toward the upper end and to be connected to the control panel of the elevator.
  • the upper end and the lower end are intended to prevent poor contact of the first and second conductors 131 and 132 by the inflow of moisture or foreign matter into the space 101.
  • the switch body 100 in which the first and second conductors 131 and 132 are embedded may be configured to be connected to each other by being configured in plural. Therefore, it can be used by cutting to the appropriate length in accordance with the length of the elevator door.
  • each of the conductors (131, 132) is provided with a control unit (not shown) to stop the driving of the elevator 200 and the elevator door 210 by detecting when the current flows in contact with the external force.
  • the control unit is electrically connected to a control panel that controls the door operation of the elevator and the lifting movement of the elevator, and when the first and second conductors 131 and 132 come into contact with each other, when the current is conducted, the finger is placed between the elevator and the door gap.
  • the elevator door By detecting a part of the body or the like is caught, the elevator door to stop driving or control the elevator door to open.
  • the operation such as stopping the lifting operation of the elevator is controlled. That is, as shown in FIG. 3, when an external force is applied to the outside of the switch body 100, the first and second conductors 131 and 132 are pressed to the center of the switch body 100 to be electrically conductive to each other. It will act as.
  • the lift clearance detection switch of the present invention shown in FIG. 3A is installed in a relatively small gap between the lift doors, and in the embodiment of FIG. 3B, a clearance between the lift doors is relatively wide. That is, when the body of the body is in contact with the elevator when the body is relatively in contact with each other the first and second conductors (131, 132), but a portion of a small body, such as a finger is caught between the door. In this case, only a part of the upper end of the switch main body 100 is installed to protrude from the end surface of the door as shown in FIG. 3A.
  • an elevator door fixing member 120 coupled to the lower portion of the switch body 100 is configured to accommodate a portion of the lower portion of the switch body 100.
  • the elevator door fixing member 120 has a protrusion 121 formed on an inner side thereof, and a coupling groove 102 is formed on a lower outer side surface of the switch body 100 at a position corresponding to the protrusion 121.
  • the switch body 100 inserted into the fixing member 120 is prevented from being separated outward.
  • the cutting unit 104 is divided into two parts on the basis of the space 101 of the switch body 100, and one side of the two side ends is cut, and the upper end is connected to each other, and the space 101 is provided.
  • the conductors 131 and 132 are inserted into and fixed to the inner surfaces of the cutouts 104, and the cutouts 104 are joined to each other.
  • the switch main body 100 into which the conductors are inserted is attached to the elevator door 210 using the elevator door fixing member 120, which is a separate member, by using an adhesive or a screw. After fixing by fixing to the end of the switch body 100 is fixed by inserting the elevator door fixing member 120. At this time, the switch main body 100 is firmly inserted into the elevator door fixing member 120 by the coupling groove 102 and the protrusion 121 so as not to be separated outward.
  • FIG. 8 is a plan sectional view schematically showing a third embodiment of the lift clearance detection switch of the present invention
  • Figures 9 and 10 are views for explaining the assembly process of the internal configuration of the lift clearance detection switch of FIG. 11 is a view illustrating a process in which the lift clearance detection switch of FIG. 8 is coupled to an elevator door
  • FIGS. 12 and 13 are views illustrating fourth embodiments of the lift clearance detection switch of the present invention.
  • 16 is a view showing fifth embodiments of the lift clearance detection switch of the present invention.
  • the third and fourth embodiments of the lift clearance detection switch of the present invention is the same in all configurations as the first and second embodiments described above.
  • the shape of the space 101 and the switch main body 100 are divided into upper and lower parts by being composed of the upper main body 1023 and the lower main body 1024, rather than being divided into left and right.
  • the space 101 is formed in a shape in which the trapezoids face each other in reverse directions.
  • the cross section is formed in a shape in which the trapezoids are in contact with each other in the forward direction.
  • the protrusion 103 is formed to play a buffer role, for example, to be easily restored to its original state when the switch body 100 is pressed by an external force. At the same time, it is to allow only the middle portion of the conductor to be in contact so that the conductors of different poles to be described later can be smoothly contacted.
  • the inner surface of the space 101 of the switch main body 100 is disposed to face each other, the third electrode 133 of the positive pole and the fourth conductor 134 of the negative pole is provided. It is preferable that the third and fourth conductors 133 and 134 use a material such as copper having good conductivity, such as a copper plate.
  • a supporting member 114 is attached to the rear surfaces of the third and fourth conductors 133 and 134, and the supporting member 114 is attached to the rear surfaces of the third and fourth conductors 133 and 134.
  • the support member 114 is preferably made of a polycarbonate (PC) that is flexible without relatively good deformation. Accordingly, as shown in FIG. 10, each of the conductors 134 and 134 having the support member 114 attached thereto from the top to the bottom may be inserted to be easily fixed to the inner surface of the space 101.
  • the switch body 100 has a cross-sectional shape of '', and the third and fourth conductors 133 and 134 face each other on the spaced inner surface of the inside of the switch body 100. And to be attached to each other as much as possible.
  • the lower part is formed in a closed state, and in the open state, the third and fourth conductors 133 and 134 protrude a predetermined length to the upper end, and thus the control panel of the elevator and the elevator. It is configured to be connected.
  • the upper and lower ends are provided to prevent moisture or foreign matter from flowing into the space 101 to contact the third and fourth conductors 133 and 134. That is, the third and fourth conductors 133 and 134 serve as switches.
  • the fifth embodiment of the lift clearance detection switch of the present invention is identical in configuration to all of the third and fourth embodiments described above.
  • the shape of the space 101 and the external shape of the switch main body 100 are somewhat different.
  • the inner surfaces of the space 101 are arranged side by side to each other, and the fifth electrode 135 of the positive pole and the lower main body provided on the inner side of the upper body 1023.
  • the sixth conductor 136 of the negative pole which is provided inside the 1024, is provided in the entire area of the lower main body 1024.
  • the sixth conductor 136 is made of a metal material such as aluminum, and when the switch body 100 is pressed, the fifth conductor 135 is in contact with the sixth conductor 136 and is electrically conductive. 200 and the elevator door 210 to stop driving.
  • the fifth embodiment is configured without the cutout 104.
  • the shape of the space and the shape of the sixth conductor 136 may be variously applied.
  • the elevator clearance jam detection switch of the present invention is simply inserted into the elevator door fixing member 120 between an existing elevator and a wall, and the first and second conductors are coupled to each other. Is only connected to the control unit that controls the lift drive, which makes the installation considerably simpler.
  • a configuration such as a sensor unit, a control unit, and a converter for converting a detection signal generated by the sensor and transmitting the detected signal to the control unit is required to prevent the pinching of the existing finger.
  • the cost is about 1/10. It can be reduced to economic effect.
  • the gap generated between the elevator and the wall that is, both the gap between the elevator 301 and the wall and the elevator car 302 and the elevator door can be installed, it is easy to install, in particular, the existing installation As the elevators are attached, the maintenance is greatly simplified by simply removing the lift clearance switch and attaching a new lift clearance switch in case of failure or maintenance.
  • switch body 101 space
  • connecting terminal 114 support member
  • first conductor 132 second conductor

Landscapes

  • Elevator Door Apparatuses (AREA)

Abstract

La présente invention concerne un commutateur de détection de blocage de porte d'ascenseur et, plus particulièrement, un commutateur de détection de blocage de porte d'ascenseur qui comprend un corps installé dans un espace entre une porte d'ascenseur et une paroi d'ascenseur, empêchant ainsi une partie corporelle d'une personne, telle qu'un doigt, d'être entraînée avec la porte d'ascenseur dans l'espace lorsque la porte d'ascenseur s'ouvre et empêche ainsi la personne de se blesser, et facilite l'installation, la maintenance et la réparation au moyen d'éléments constitutifs plus simples.
PCT/KR2019/007830 2018-06-27 2019-06-27 Commutateur de détection de blocage de porte d'ascenseur WO2020004985A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201980043349.4A CN112384463A (zh) 2018-06-27 2019-06-27 电梯缝隙夹入检测开关

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
KR20180074119 2018-06-27
KR10-2018-0074119 2018-06-27
KR1020180132265A KR102119620B1 (ko) 2018-06-27 2018-10-31 승강기 틈새 끼임 감지 스위치
KR10-2018-0132265 2018-10-31

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Publication Number Publication Date
WO2020004985A1 true WO2020004985A1 (fr) 2020-01-02

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Application Number Title Priority Date Filing Date
PCT/KR2019/007830 WO2020004985A1 (fr) 2018-06-27 2019-06-27 Commutateur de détection de blocage de porte d'ascenseur

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20240093544A1 (en) * 2020-09-10 2024-03-21 Vitonet Ap Co., Ltd. Device for preventing human body from being jammed using change in capacitance

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60115420U (ja) * 1984-01-13 1985-08-05 東光株式会社 テ−プ形スイツチ
US20070068787A1 (en) * 2001-10-04 2007-03-29 Burgess Lester E Pressure actuated switching device and method and system for making same
JP2009250857A (ja) * 2008-04-09 2009-10-29 Omron Corp 静電容量センサ
KR101732337B1 (ko) * 2017-03-28 2017-05-02 윤일식 엘리베이터의 손끼임 방지용 안전장치
KR101804536B1 (ko) * 2017-10-24 2017-12-14 주식회사 평산엔지니어링 엘리베이터 카 도어용 끼임 방지 센서장치

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60115420U (ja) * 1984-01-13 1985-08-05 東光株式会社 テ−プ形スイツチ
US20070068787A1 (en) * 2001-10-04 2007-03-29 Burgess Lester E Pressure actuated switching device and method and system for making same
JP2009250857A (ja) * 2008-04-09 2009-10-29 Omron Corp 静電容量センサ
KR101732337B1 (ko) * 2017-03-28 2017-05-02 윤일식 엘리베이터의 손끼임 방지용 안전장치
KR101804536B1 (ko) * 2017-10-24 2017-12-14 주식회사 평산엔지니어링 엘리베이터 카 도어용 끼임 방지 센서장치

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20240093544A1 (en) * 2020-09-10 2024-03-21 Vitonet Ap Co., Ltd. Device for preventing human body from being jammed using change in capacitance
US12024936B2 (en) * 2020-09-10 2024-07-02 Vitonet Ap Co., Ltd. Device for preventing human body from being jammed using change in capacitance

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