JP2011144039A - Safety device for elevator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve problems that, in a conventional elevator device, accidents frequently occur such that; a door of a landing is opened by erroneous operation when a car travels or stops at another floor, and a person leans over to a space of a hoistway by inertia and falls down, or the car self-travels and a person is caught during getting-on/off. <P>SOLUTION: A gap is provided between a building and the car, and a frame body with the gap width is arranged in an inner wall surface of a peripheral end of each landing opening part, and a body leaning over protecting device and a car anchoring device are arranged in the frame body. Therefore, even when the door of the landing is opened by erroneous operation, the protecting device supports a person's body, and the fall-down accident can be reduced. Further, even when the stopped car self-travels by erroneous operation, the car is anchored by the car anchoring device, and thereby, lifting or lowering can be prevented. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a safety device for an elevator apparatus, and more particularly, to an elevator apparatus provided with a safety device for preventing falling and pinching.

  In general, an elevator device is configured such that a car, a hoisting machine, a hoisting rope, and a counterweight are installed in the hoistway, and the car and the counterweight are raised and lowered through the hoisting rope by driving the hoisting machine. Has been.

  In addition, an opening having a door is provided at the landing on each floor on the building side, and the door is opened and closed when the car arrives at the stop floor.

  The elevator device is configured such that when the car moves up and down and stops at the stop floor, the door on the landing side is opened and closed in conjunction with the control device, so that the passenger can get on and off.

  However, in such an elevator device, various accidents often occur due to failure of the device, malfunction of the electronic system, and the like, which are social problems.

  For example, in the Sankei Shimbun morning edition dated November 8, 2009, there were no elevators for luggage, so there were a series of accidents such as falling, and 37 people were killed nationwide for three years. Furthermore, more than 200 people were injured, according to a survey by the Ministry of Health, Labor and Welfare. There was no car and it fell to the top of the car that had stopped downstairs and died. It is reported that there are a number of accidents such as deaths between the ceiling of the luggage elevator and the floor.

  Therefore, many high-precision techniques have been proposed for elevator safety devices. If the economic efficiency is not taken into consideration, it is considered that the conventional technology can sufficiently provide an elevator apparatus that has almost no accident rate. However, there are various types of elevator equipment depending on the application and form, from super high-end hotels, high-rise buildings to mid- and low-rise buildings, condominiums, etc. All elevator equipments are equipped with high-precision technology uniformly. There are circumstances that cannot be fully stated. For example, as described above, it is a fact that accidents such as luggage elevators frequently occur.

  As described above, the conventional elevator apparatus has to ensure that the car stops at a predetermined position on the stop floor and is completely stationary while a person moves between the landing and the car. Furthermore, the landing doors open and close in conjunction with the car door when the car arrives and must not open when the car does not arrive. In other words, it is required that the operation of both devices be completely the same for the vertical movement of the car and the opening and closing of the landing doors. Even if each technology is highly accurate, either device will malfunction. Then, there is a structurally severe condition that immediately leads to an accident of the entire elevator apparatus.

  Furthermore, the elevator apparatus that is safe at the beginning is inevitably deteriorated over time and worn out due to long-term use. This is regularly inspected and repaired to maintain safety accuracy. However, it is difficult to completely eliminate hidden defects, technical oversights, and human error. There is a problem that there is always a danger such as an accident in which a door of the landing is opened or closed on a floor other than the floor, or an accident in which a car is self-propelled while a passenger is getting on and off.

  The present invention is intended to solve such a problem, and in the unlikely event that a malfunction occurs, while taking advantage of the conventional features of the vertical movement of the car and the opening / closing operation of the landing doors as they are, As a preparation, a new safety device is installed between the door of the car and the door of the landing. First, the landing door opens while the car is running or stopped on another floor. The purpose is to obtain an elevator device that can reduce the accident of falling into the space of the hoistway, and secondly, the accident that the car is self-propelled and gets caught between the building and the car during getting on and off And

  In order to achieve the above object, the present invention provides a space between the building and the car in the hoistway, and the inner wall surface around the landing opening of the building has a lower frame and left and right vertical frames. And a frame for a safety device composed of a four-sided frame of the upper frame is laid on each floor.

  The operation of the first problem solving means is as follows. By effectively utilizing the space in the hoistway, there is an effect that a space is created in the form of projecting outside the wall surface of the building, and various safety devices can be installed.

  In addition, a protective device is provided in the frame body for supporting a person's body by a protective member and preventing falling when a landing door is opened due to a malfunction.

  The action of the second problem solving means is that when a landing door is opened due to a malfunction, and a person gets into the hoistway space due to inertia, the person's body is supported by a protective member to reduce a fall accident. effective.

  In addition, two vertical pipes for mooring members are installed on the sides of the left and right standing frames of the frame in parallel with the inner wall surface on the landing side with a space from the lower frame to the upper frame. Circular support holes for supporting the mooring member are provided at approximately one-third and two-thirds of the member longitudinal tube, and two upper and lower round bar-like mooring members are inserted horizontally into the support hole. The vertical pipes for the left and right mooring members are respectively arranged in a cross-beam shape, and the two upper and lower mooring members are connected in a U-shape with a connecting shaft. Furthermore, the left and right standing frames are provided with circular insertion holes at positions where the left and right mooring members respectively engage, and when the car arrives, the left and right mooring members can be opened and closed outward through the insertion holes. A car mooring device is provided.

  On the other hand, the left and right U-shaped guide rails for the car are joined to the outside of the left and right standing frames of the frame body on each floor and laid in the vertical direction on the inner wall surface on the landing side of the hoistway It is.

  Furthermore, plate-like sleeves with the width of the lower frame of the frame are joined to the left and right ends of the riding scene of the car, respectively, and the left and right sleeves are sandwiched by U-shaped grooves of the left and right guide rails and move up and down stably. It is comprised as follows.

  The left and right sleeves and the left and right guide rails are provided with insertion holes on the same horizontal line as the insertion holes of the left and right vertical frames, respectively.

  The action of the third problem solving means is that when the car is stopped, when the mooring member is opened to the left and right, it slides horizontally and projects outward, and the standing frame, the U-shaped guide rail, and the car sleeves The mooring member penetrates through each insertion hole, the car is moored to the building wall via the mooring device, and even if the stopped car is self-propelled due to malfunction, It has the effect of reducing accidents by preventing ascent or descent.

  Further, the mooring device is provided with a car self-propelled sensing device and an alarm device.

The action of the fourth problem solving means can be useful for emergency evacuation by the alarm device notifying the abnormality of the mooring device even when the mooring cannot be supported due to the relationship between the load of the car and the strength of the mooring member.

  As described above, the safety device for an elevator apparatus according to the present invention has an interval between the building and the car and the frame having the above-mentioned interval width is laid on the inner wall surface of the periphery of each floor landing opening. A space projecting outside is created, and various safety devices can be installed.

  In addition, since a protective device is arranged between the car door and the landing door, even if the landing door on a floor other than the stop floor opens due to a malfunction, the protective device is not directly in the hoistway space. Therefore, even if a person is inertial and leans out from the opening of the building to the outside, it can be supported and the fall accident can be reduced.

  In addition, since the car mooring device is arranged in the frame, the car is moored to the building wall via the mooring device even if the stopped car is self-propelled due to malfunction. Therefore, it is possible to prevent the ascending or descending.

The front view which shows embodiment of this invention. The top view corresponding to FIG. FIG. 2 is a front sectional view showing a state when the car is stopped in FIG. 1. FIG. 4 is a plan view corresponding to FIG. 3. The side view corresponding to FIGS. 1 is a perspective view of a car showing an embodiment of the present invention.

  Hereinafter, embodiments of the present invention will be described with reference to FIGS.

  FIG. 1 is a front view of a landing, a protection device 10 and a mooring device 16 as viewed from the hoistway 1 side, showing an embodiment of the present invention. FIG. 2 is a plan view corresponding to FIG. FIG. 3 is a cross-sectional view seen from the top of the road 1. 3 is a front view showing a form when the car 2 is in a stopped state on the stop floor, and FIG. 4 is a plan view corresponding to FIG. FIG. 5 is a side view corresponding to FIGS. 1 to 4, and is outside the U-shaped guide rail 17 on the stop floor and the absent floor of the car 2. FIG. 6 is a perspective view of the car 2 according to the embodiment of the present invention.

  Hereinafter, the first embodiment will be described with reference to FIGS. A space is provided between the building in the hoistway 1 and the car 2, and the vertical width from the landing to the car 2 on the inner wall of the periphery of the hall opening of the building is the above-mentioned distance width, and the lateral width is substantially the car width. The bridge has the bridge 3 as a lower frame 3, left and right vertical frames 4 at both left and right ends, and an upper frame 5 parallel to the lower frame 3 at the top of the left and right vertical frames 4 A frame body 6 constituted by a four-way frame of a frame 4 and an upper frame 5 is laid on each floor so that various devices can be supported.

  Further, a vertical pipe 7 for supporting the protective door is erected from the lower frame 3 to the upper frame 5 at the position inside the left and right mooring device 16 in the frame 6, and the protective door 9 is attached to the lower frame 3. A guide rail 8 that guides opening and closing is provided between the vertical pipes 7 for the left and right protective doors, and further comprises a fence-shaped protective member having a height of 120 to 150 cm and a distance of 20 to 30 cm provided with a guide roller at the bottom. The doors 9 are respectively supported by the vertical pipes 7 for the protective doors and installed, and the protective devices 10 that are guided by the guide rails 8 to open and close are arranged.

  With this configuration, when the car 2 is traveling or stopped on another floor, the landing door 21 is opened due to a malfunction, and a person has entered the space of the hoistway 1 due to inertia. The human body is supported by the protective member, so that the accident of falling can be reduced.

  Also, two vertical pipes 11 for mooring members are set up on the sides of the left and right standing frames 4 of the frame body 6 in parallel with the inner wall surface on the landing side with a space from the lower frame 3 to the upper frame 5. The circular support holes 12 for supporting the mooring member 13 are provided at approximately one-third and two-thirds of the mooring member vertical pipe 11, and two upper and lower mooring members 13 each having a round bar shape are provided. It is inserted horizontally into the support hole 12 and inserted into the vertical pipes 11 for the left and right mooring members, respectively, and the two upper and lower mooring members 13 are connected by a connecting shaft 14 in a U-shape. Further, circular insertion holes 15 are provided in the left and right standing frames 4 at positions where the left and right anchoring members 13 are engaged with each other. When the car 2 arrives, the left and right anchoring members 13 pass through the insertion holes 15 and are outside. A mooring device 16 for the car 2 that can be opened and closed is arranged.

  On the other hand, two U-shaped guide rails 17 for the left and right cars are joined to the outside of the left and right vertical frames 4 of the frame body 6 on the inner wall of the hoistway 1 on the landing side, The car 2 is engaged with the two left and right U-shaped guide rails 17, and the car 2 is guided by the guide rails 17 to move up and down.

  FIG. 5 is a perspective view showing a state in which the left and right sleeves 19 are joined to the car 2. The left and right ends of the platform 2 of the car 2 are joined to plate-shaped sleeves 19 each having a height car vertical width having a guide roller 18 at the front end and a vertical frame lower frame width, respectively. The left and right guide rails 17 are sandwiched between U-shaped grooves and are configured to rise and fall stably.

  Further, the left and right sleeves 19 and the left and right guide rails 17 are respectively provided with insertion holes 15 on the same horizontal line as the insertion holes 15 of the left and right standing frames 4.

  Accordingly, when the car 2 is stopped, when the mooring member 13 is opened to the left and right, it is slid horizontally and pushed outward, and the insertion holes 15 of the upright frame 4, the U-shaped guide rail 17, and the sleeve 19 are inserted. Since the mooring member 13 penetrates each other and the stopped car 2 is self-propelled due to malfunction, the car 2 is moored to the building wall via the mooring device 13. It is configured to prevent ascending or descending.

  Since the first embodiment of the present invention is configured as described above, it overlaps with the prior art in the sense of a safety device, but the present invention is characterized by being blocked by a specific member, It can be prepared for malfunctions in a sense different from the safety device on the control system. In addition, since the protective device 10 and the mooring device 16 can be directly opened and closed after the arrival of the car 2, particularly in the case of a luggage elevator, the worker can confirm safety and work safely. .

  Although the first embodiment of the present invention has been described above, other embodiments will be sequentially described below. The second embodiment will be described below. The frame 6 is provided with a storage unit including an electric motor and a driving device, and on the other hand, control for instructing the platform, the car 2, and the portable remote controller to open and close the protective door 9 and the mooring member 13 of the first embodiment, respectively. The protective device 10 and the mooring device 16 according to the first embodiment are provided, which are provided with a button and are opened and closed via the drive device in response to an instruction from the control button when the car 2 arrives.

  Since the second embodiment of the present invention is configured as described above, the second embodiment of the present invention is configured to be controlled by a control system different from the control device of the car 2 main body. The probability of malfunctioning is low and accidents can be reduced.

  The third embodiment will be described below. The frame 6 is provided with a storage unit including an electric motor and a drive device, and the door 20 of the car and the door 21 of the landing are opened and closed in conjunction with each other according to instructions from the control device, which is a conventional technique. The protective door 10 and the mooring member 13 according to the first embodiment are configured to be provided with a protective device 10 and a mooring device 16 that are opened and closed via the driving device by providing a time difference from the opening and closing and by a one-beat delay control setting. ing.

  Since the third embodiment of the present invention is configured as described above, the elevator user can visually confirm the presence of the protective door 9 by setting the control to be delayed by one beat from the opening / closing of the landing door 21. Because it can call attention, it is effective for general elevators.

  The fourth embodiment will be described below. In the protective device 10 and the mooring device 16 of the third embodiment, the mooring member 13 is connected to the outside of the protective door 9, and the inner vertical tube of the two vertical tubes 11 for the left and right mooring members is a protective door. A protective device 10 and a mooring device 16 that serve as a supporting vertical pipe 7 and that is composed of a protective door 9 and a mooring member 13 are integrated. When the car 2 is stopped, the car door 20 and the landing door 21 are protected. The door 9 and the mooring member 13 are configured to be provided with a protective device 10 and a mooring device 16 that are opened and closed in conjunction with each other by the control device via the driving device.

  The fifth embodiment will be described below. In Examples 1 to 4, the anchoring member 13 is provided with a sensing device at each of the upper and lower portions where it engages with the car sleeve 19, and when the car 2 moves up and down while stopped, it passes through the car sleeve 19. The sensing device is pressed, and the sensing device is configured to sense an abnormality of the mooring device 10 and transmit a sensing signal to an alarm device provided separately to generate an alarm sound.

  With this configuration, even when the mooring cannot be supported due to the relationship between the load of the car 2 and the strength of the mooring device 16, the alarm device can inform the self-running of the car and help emergency escape.

  The sixth embodiment will be described below. In the case of Example 1, the positional relationship between the protective device 10 and the mooring device 16 is that the mooring device 16 is arranged on the left and right rear sides of the frame body, and the protective device 10 is arranged in parallel on the inner side. If there is a margin in the interval width, the protective device 10 and the mooring device 16 may be arranged in parallel with the riding scene.

  The seventh embodiment will be described below. It is desirable that both the protective device 10 and the mooring device 16 are installed. However, only one of them may be installed because of the space and cost of the hoistway, and at least either a fall accident or a pinch accident is prevented. There is an effect to. In addition, when it is difficult to lay the frame body due to lack of space in the hoistway, the landing door may be slightly retracted to install only the protective device 10 at the end of the opening of the building.

  The eighth embodiment will be described below. Moreover, the said protective device 10 should just have intensity | strength which interrupts a person's movement instantaneously, and forms, such as a door, a curtain, a shutter, a fence, a roll-up, a double opening, a single opening, a net | network, a fence, steel materials, a string, cloth, plastic There is a degree of freedom in design for materials such as.

  The ninth embodiment will be described below. The mooring member 13 only needs to be strong enough to stably support the load of the car 2. The number of the mooring members 13 is two in the upper and lower cases in the first embodiment, but the strength and stability are reinforced. For this reason, the number of the anchoring members 13 may be increased, and the same device as that of the first embodiment is provided corresponding to the number of the anchoring members 13. May be.

  DESCRIPTION OF SYMBOLS 1 Hoistway, 2 Passenger car, 3 Lower frame, 4 Standing frame, 5 Upper frame, 6 Frame body, 7 Protective door vertical pipe, 8 Protective door guide rail, 9 Protective door, 10 Protective device, 11 For mooring member Vertical pipe, 12 support hole, 13 anchoring member, 14 connecting shaft, 15 insertion hole, 16 anchoring device, 17 U-shaped guide rail for car, 18 car guide roller, 19 car sleeve, 20 car car Door, 21 Door of the landing.

Claims (1)

  A car that moves up and down along the guide rail in the hoistway, a platform with an opening / closing door at the opening of the building, and the door of the car and the door of the platform are interlocked when stopping at the stop floor of the car In an elevator apparatus that can be opened and closed and can be boarded / exited, a space is provided between the building and the car, and a frame body with the above-mentioned width is laid on the inner wall surface of the periphery of each floor landing opening. A safety device for an elevator comprising a fall protection device for protecting an entry and a car mooring device for preventing the car from traveling on its own.

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