Elevator and method for resetting emergency brake device

Abstract

An elevator is provided with: a car having a car chamber; a guide rail that guides the movement of the car; and an emergency brake device that stops the movement of the car. The emergency braking device is provided with: a braking mechanism having a braking member that sandwiches a guide rail; a drive mechanism having a drive force for operating the brake mechanism; an operation mechanism that operates the drive mechanism; and the lifting component is connected with the brake component and lifts the brake component when the driving mechanism works. In addition, an inspection window is formed in the lift car chamber of the lift car, wherein the inspection window can reach the lifting component from the lift car chamber.

Description

Technical Field

[0001] The present invention relates to an elevator having an emergency braking device for stopping a car in an emergency and a method for resetting the emergency braking device. Background Art

[0002] Generally, a suspension type elevator has long members such as a main suspension rope connecting a car and a counterweight, a compensating suspension rope, and a governor rope for detecting the speed of the car or the counterweight. In addition, in an elevator, an emergency braking device is required to be provided as a safety device, and the emergency braking device automatically stops the operation of the car when the speed of the car moving up and down along the guide rail exceeds a specified value.

[0003] As such an existing emergency braking device, for example, there is the technology described in Patent Document 1. In Patent Document 1, an emergency braking device having an electric operating mechanism in which a movable iron core and an electromagnet are electromagnetically attracted and separated is described as an operating mechanism for operating a braking mechanism. In addition, Patent Document 1 describes a holding and resetting mechanism for moving an electromagnet core in a direction approaching and leaving the movable iron core, and the emergency braking device is automatically reset by the holding and resetting mechanism.

[0004] Prior Art Documents

[0005] Patent Documents

[0006] Patent Document 1: Japanese Unexamined Patent Application Publication No. 2020-083579 Summary of the Invention

[0007] Problems to be Solved by the Invention

[0008] However, in the technology described in Patent Document 1, in the case of a power failure or a failure of the operating mechanism, the emergency braking device cannot be automatically reset by the holding and resetting mechanism provided in the operating mechanism, and an operator needs to manually reset it. And, in order to manually reset the braking mechanism, a scaffold for the operator to work needs to be provided in the hoistway, and the reset work becomes very complicated.

[0009] In view of the above problems, an object of the present invention is to provide an elevator and a method for resetting an emergency braking device that can easily perform the reset work of the braking mechanism.

[0010] Means for Solving the Problems

[0011] To solve the above problems and achieve the object, an elevator includes: a car having a car cabin; guide rails that guide the movement of the car; and an emergency braking device that stops the movement of the car. The emergency braking device includes: a braking mechanism having a brake member that clamps the guide rail; a driving mechanism having a driving force that causes the braking mechanism to operate; an operating mechanism that causes the driving mechanism to work; and a lifting member that is connected to the brake member and lifts the brake member when the driving mechanism works. Further, an inspection window through which the lifting member can be accessed from the car cabin is formed in the car cabin of the car.

[0012] In addition, in the method for resetting the emergency braking device having the above structure, the method for resetting the emergency braking device includes the steps shown in (1) to (2) below.

[0013] (1) The step of opening the inspection window provided in the car cabin of the car.

[0014] (2) The step of pressing the lifting member through the inspection window from the car cabin to release the clamping of the guide rail by the brake member.

[0015] Advantageous Effects of the Invention

[0016] According to the elevator and the method for resetting the emergency braking device having the above structure, the reset operation of the braking mechanism can be easily performed. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural diagram of a car of an elevator according to a first embodiment.

[0018] Figure 2 is Figure 1 a sectional view taken along line A-A shown in

[0019] Figure 3 is a diagram showing an operating mechanism and a driving mechanism of an emergency braking device according to an embodiment.

[0020] Figure 4A and Figure 4B is a diagram showing a modified example of a car of an elevator according to a first embodiment.

[0021] Figure 5 is an explanatory diagram showing a reset operation of an emergency braking device in an elevator according to a first embodiment.

[0022] Figure 6 is a schematic structural diagram of a car of an elevator according to a second embodiment.

[0023] Figure 7 is Figure 6 a sectional view taken along line A-A shown in DETAILED DESCRIPTION OF THE INVENTION

[0024] Hereinafter, with reference toFigures 1 to 7 The elevator of the embodiment example will be described. In addition, in each figure, the same reference numerals are assigned to common components.

[0025] 1. First Embodiment Example

[0026] 1-1. Example of the Structure of the Car

[0027] First, refer to Figures 1 to 2 The structure of the car of the elevator of the first embodiment example (hereinafter referred to as "this example") will be described.

[0028] Figure 1 It is a schematic structural diagram showing an example of the structure of the car of this example. Figure 2 It is Figure 1 The sectional view taken along line A-A shown.

[0029] As Figure 1 shown, the car 1 of the elevator of this example moves up and down in a hoistway formed in a building structure. In addition, the car 1 is supported slidably by guide rails 201A and 201B erected in the hoistway. The car 1 includes a car body 120 for carrying people and goods, an upper frame (crosshead) 121, lower frames 131 and 134, vertical frames 140, and an emergency braking device.

[0030] The upper frame 121 is disposed at the upper part in the vertical direction of the car body 120. The lower frames 131 and 134 are disposed at the lower part in the vertical direction of the car body 120. The first lower frame 131 is disposed along the front-rear direction orthogonal to both the vertical direction and the width direction. The second lower frame 134 is disposed at the lower end in the vertical direction of the first lower frame 131. And, the second lower frame 134 is disposed along the width direction orthogonal to the first lower frame 131. In addition, a mounting bracket 133 is fixed to the second lower frame 134.

[0031] In addition, a vibration damping member 160 is interposed between the first lower frame 131 and the car body 120. The vertical frames 140 connect the upper frame 121 and the lower frames 131 and 134, and are disposed along the vertical direction of the car body 120.

[0032] In addition, the car body 120 has a floor 130, side plates 142 surrounding the periphery of the floor 130, a baseboard 141, and a ceiling. The floor 130 is supported by the first lower frame 131 via the vibration damping member 160. The baseboard 141 is disposed at the lower end in the vertical direction of the side plates 142. And, the baseboard 141 is disposed between the side plates 142 and the floor 130 to support the side plates 142.

[0033] Among the plurality of side plates 142, a side plate 142 facing the longitudinal frame 140 is formed with an inspection window 143. In addition, the inspection window 143 is also formed in the longitudinal frame 140. A cover member is installed in the inspection window 143 to block its opening in an openable and closable manner. The inspection window 143 faces the first lifting member 13A of the emergency braking device described later. Therefore, an operator can perform operations on the first lifting member 13A from inside the car chamber 120 via the inspection window 143.

[0034] Next, the emergency braking device will be described.

[0035] The emergency braking device includes two braking mechanisms 10A, 10B, an operating mechanism 11, a driving mechanism 12, a first lifting member 13A, and a second lifting member 13B. As Figure 1 and Figure 2 shown, the lower end of the first lifting member 13A is connected to the braking mechanism 10A described later. And the first lifting member 13A extends upward in the vertical direction (lifting direction) along the longitudinal frame 140 of the car 1 from the driving mechanism 12.

[0036] As Figure 1 and Figure 2 shown, the operating mechanism 11 and the driving mechanism 12 are arranged on the lower frames 131, 134. In addition, the detailed structures of the lower frames 131, 134, the arrangement state of the operating mechanism 11, and the driving mechanism 12 will be described later. The braking mechanisms 10A, 10B are arranged at the lower ends in the vertical direction of the longitudinal frame 140.

[0037] Next, the braking mechanisms 10A, 10B will be described. In addition, the braking mechanisms 10A, 10B have the same mechanism respectively, so the braking mechanism 10A will be described here.

[0038] As Figure 2 shown, the braking mechanism 10A includes a frame body 71, a pair of braking members 73, a pair of guiding members 72, a connecting member 74, and a biasing member (not shown). The pair of braking members 73 are arranged opposite to each other with a guide rail 201A therebetween. And, in the state before the emergency braking device operates, a predetermined gap is formed between the pair of braking members 73 and the guide rail 201A.

[0039] One surface of the braking member 73 facing the guide rail 201A is formed parallel to one surface of the guide rail 201A, that is, parallel to the lifting direction. In addition, the other surface of the braking member 73 opposite to the surface facing the guide rail 201A is inclined so as to approach the guide rail 201A as it goes from the lower side to the upper side in the lifting direction. Therefore, the braking member 73 is formed in a wedge shape.

[0040] A pair of brake members 73 are installed at the lower end of the connecting member 74 in the lifting direction via support bolts. The support bolts are inserted through through-holes provided at the lower end of the connecting member 74. Moreover, the pair of brake members 73 are supported by the connecting member 74 via the support bolts so as to be movable in directions approaching and separating from the guide rail 201A.

[0041] The first lifting member 13A described later is connected to the connecting member 74. And by lifting the first lifting member 13A upward in the lifting direction, the pair of brake members 73 and the connecting member 74 move upward in the lifting direction.

[0042] In addition, the pair of brake members 73 are supported by a pair of guide members 72 so as to be movable. The pair of guide members 72 are fixed to the car 120 via the frame 30. In addition, the pair of guide members 72 are opposed to each other at a predetermined interval with the pair of brake members 73 interposed therebetween from the guide rail 201A.

[0043] One surface of the guide member 72 opposed to the brake member 73 is inclined so as to approach the guide rail 201A as it goes upward in the lifting direction. Therefore, the interval between the surfaces of the pair of guide members 72 opposed to the brake member 73 becomes narrower as it goes upward in the lifting direction.

[0044] In addition, a biasing member (not shown) is disposed on the other surface of the guide member 72 opposite to the surface opposed to the brake member 73. The biasing member is constituted by, for example, a leaf spring having a U-shaped cross-sectional shape cut in the horizontal direction orthogonal to the lifting direction. The opposite ends of the biasing member are opposed to each other at a predetermined interval with the guide rail 201A interposed therebetween. And guide members 32 are fixed to the opposed surfaces of the opposite ends of the biasing member.

[0045] In addition, as the biasing member, it is not limited to a U-shaped leaf spring. For example, a compression coil spring can also be used and interposed between the guide member 72 and a frame (not shown).

[0046] When the pair of brake members 73 move relatively upward in the lifting direction with respect to the guide member 72, the pair of brake members 73 move in a direction approaching each other through the guide member 72, that is, in a direction approaching the guide rail 201A. When the pair of brake members 73 further move upward in the lifting direction, the pair of brake members 73 are pressed against the guide rail 201A by the acting force of the biasing member through the guide member 72. Thereby, the lifting movement of the car 120 is braked.

[0047] Next, with reference to Figure 1 and Figure 3 the structures of the operating mechanism 11 and the drive mechanism 12 will be described.

[0048] Figure 3It is a diagram showing the operating mechanism 11 and the driving mechanism 12 .

[0049] like Figure 1 and Figure 3 As shown, the drive mechanism 12 includes a drive shaft 15, a first lifting rod 16A, a second lifting rod 16B, drive shafts 18, 18, and a drive spring 20. The drive shaft 18 is provided at both ends of the width direction orthogonal to the up-down direction of the upper frame 121. The lifting rods 16A, 16B are rotatably supported on the drive shaft 18.

[0050] The first lift rod 16A and the second lift rod 16B are formed in a substantially T-shape. A drive shaft 18 is provided at the intersection of the T-shape of the first lift rod 16A and the second lift rod 16B.

[0051] The first lifting member 13A is connected to the first lifting rod 16A via the connecting portion 26A, and the second lifting member 13B is connected to the second lifting rod 16B via the connecting portion 26B. Figure 3 As shown, the first lifting rod 16A is connected to the drive shaft 15 via the connecting portion 25. Similarly, the second lifting rod 16B is connected to the drive shaft 15 via a connecting portion not shown. Moreover, the end of the first lifting rod 16A on the opposite side of the connecting portion 25 is connected to the connecting member 41 of the action mechanism 11 described later via a rod bracket 37.

[0052] The drive shaft 15 is arranged in the second lower frame 134 along the width direction of the second lower frame 134. One axial end of the drive shaft 15 is connected to the first lifting rod 16A, and the other axial end of the drive shaft 15 is connected to the second lifting rod 16B. In addition, a drive spring 20 is provided in the middle portion of the drive shaft 15 in the axial direction.

[0053] The drive spring 20 is, for example, a compression coil spring. One end of the drive spring 20 is fixed to the second lower frame 134 via a fixing portion, and the other end of the drive spring 20 is fixed to the drive shaft 15 via a pressing member. The drive spring 20 urges the other end of the drive shaft 15 in the axial direction via the pressing member.

[0054] When the action mechanism 11 is working, the drive shaft 15 is urged by the drive spring 20 to move toward the other end in the axial direction. As a result, the first lifting rod 16A rotates around the driving shaft 18 in a manner that the end connected to the first lifting member 13A faces upward in the vertical direction. In addition, the second lifting rod 16B rotates around the driving shaft 18 in a manner that the end connected to the second lifting member 13B faces upward in the vertical direction. As a result, the first lifting member 13A and the second lifting member 13B are linked to each other and lifted upward in the vertical direction, and the brake mechanisms 10A and 10B are actuated.

[0055] likeFigure 3 As shown, the actuating mechanism 11 includes a connecting member 41, an electromagnetic core 43, a movable iron core 44, a substrate 45, a drive motor 46, a feed screw shaft 47, and a feed nut 48. And the actuating mechanism 11 operates the drive mechanism 12.

[0056] The substrate 45 is formed of a flat plate-like member. The substrate 45 is fixed to the mounting bracket 133 of the second lower frame 134 (refer to Figure 1 and Figure 2 ). A first shaft support portion 54 and a second shaft support portion 55 are fixed to the upper surface portion above the substrate 45 in the vertical direction.

[0057] The first shaft support portion 54 is disposed at one end of the substrate 45, and the second shaft support portion 55 is disposed at the other end of the substrate 45. The first shaft support portion 54 and the second shaft support portion 55 are disposed opposite to each other. The feed screw shaft 47 is rotatably supported by the first shaft support portion 54 and the second shaft support portion 55. In addition, the drive motor 46 is disposed at the second shaft support portion 55. Further, the drive motor 46 may be provided on the side of the first shaft support portion 54. And the rotating shaft of the drive motor 46 is mounted to the feed screw shaft 47 via a coupling.

[0058] A trapezoidal thread is formed on the outer peripheral surface of the feed screw shaft 47. And the feed nut 48 is screwed with the feed screw shaft 47. The electromagnetic core 43 is fixed to the feed nut 48. A coil is provided in the electromagnetic core 43. When power is supplied from a power source (not shown) to the coil and the coil is energized, an electromagnet is formed by the electromagnetic core 43 and the coil. And the electromagnetic core 43 faces the movable iron core 44 mounted to the connecting member 41 described later.

[0059] When the drive motor 46 rotates, the feed screw shaft 47 rotates. And by the rotation of the feed screw shaft 47, the rotational force of the feed screw shaft 47 is converted into a force along the axial direction by the thread portion and the threaded hole. And the feed nut 48 moves along the axial direction of the feed screw shaft 47. In addition, the electromagnetic core 43 to which the feed nut 48 is fixed also moves along the axial direction of the feed screw shaft 47.

[0060] When the drive motor 46 rotates forward (clockwise), the feed nut 48 moves toward the first shaft support portion 54 side. And when the drive motor rotates reversely (counterclockwise), the feed nut 48 moves toward the second shaft support portion 55 side. That is, the drive motor 46, the feed nut 48, and the feed screw shaft 47 constitute a holding and reset mechanism that moves the electromagnetic core 43 in a direction approaching and departing from the movable iron core 44. Here, the second shaft support portion 55 is disposed at the standby position of the feed nut 48 and the electromagnetic core 43. And in the standby state of the actuating mechanism 11 and when returning from the braking state to the reset state, the electromagnetic core 43 abuts against the second shaft support portion 55 via the feed nut 48.

[0061] A connecting hole 41a is formed in the connecting member 41. A connecting pin 36 provided on the rod bracket 37 is inserted through the connecting hole 41a. Therefore, the connecting member 41 is rotatably connected to the first lifting rod 16A via the rod bracket 37.

[0062] In addition, a movable iron core 44 is fixed to the connecting member 41. The movable iron core 44 is supported by the connecting member 41 and faces the electromagnet core 43 fixed to the feed nut 48. In Figure 3 the standby state shown, the movable iron core 44 is attracted to the electromagnet core 43.

[0063] In addition, a moving mechanism for moving the electromagnet core 43 in a direction approaching and separating from the movable iron core 44 is constituted by a drive motor 46, a feed screw shaft 47, and a feed nut 48.

[0064] In the standby state, the electromagnet core 43 is disposed on the other end side in the axial direction of the feed screw shaft 47. In addition, the coil of the electromagnet core 43 is energized, and the electromagnet core 43 is excited. Thus, an electromagnet constituted by the electromagnet core 43 and the coil is formed.

[0065] The movable iron core 44 is attracted to the electromagnet core 43. Therefore, one end portion of the first lifting rod 16A is held via the connecting member 41 to which the movable iron core 44 is fixed. As a result, the drive shaft 15 connected to the other end portion of the first lifting rod 16A is biased toward one end portion in the axial direction against the acting force of the drive spring 20.

[0066] When the control unit determines that the descending speed of the car 1 exceeds a predetermined speed during the descending movement of the car 1, the control unit outputs an operation command signal to the emergency braking device. Thereby, the power supply to the electromagnet core 43 is cut off. In addition, the power supply to the electromagnet core 43 is cut off not only when the car 1 is overspeed but also when the elevator is powered off.

[0067] By cutting off the power supply to the electromagnet core 43, the magnetism of the electromagnet core 43 is eliminated. Thereby, the drive shaft 15 moves toward the other end side in the axial direction by the acting force of the drive spring 20, and one end portion of the first lifting rod 16A also moves toward the other end side in the axial direction together with the drive shaft 15. As a result, the first lifting rod 16A and the second lifting rod 16B rotate about the drive shaft 18. Thus, the drive mechanism 12 is operated by the operating mechanism 11.

[0068] In addition, as the first lifting rod 16A rotates, the movable iron core 44 separates from the electromagnet core 43. Thus, by separating the movable iron core 44 from the electromagnet core 43, the connecting member 41 can be moved without being affected by the frictional force and the holding force between the feed screw shaft 47 and the feed nut 48 as the moving mechanism.

[0069] In addition, the structures of the braking mechanisms 10A and 10B, the operating mechanism 11, and the drive mechanism 12 are not limited to the above examples, and various other structures can be applied.

[0070] [Modification Example]

[0071] Figure 4A and Figure 4B is a diagram showing a modification example.

[0072] In addition, in Figure 1 and Figure 2 the example shown, an example in which an inspection window 143 is formed on the side plate 142 of the car room 120 is described, but it is not limited thereto. For example, as in the modification examples shown in Figure 4A and Figure 4B the inspection window 143 may be formed on the baseboard 141. In addition, a baseboard cover for blocking the inspection window 143 is installed on the baseboard 141. Thus, by providing the inspection window 143 at a position where it is difficult for users to visually confirm, it is possible to suppress damage to the appearance of the car 1.

[0073] 1-2. Example of reset operation of emergency braking device

[0074] Next, with reference to Figure 5 the reset operation of the emergency braking device in the elevator having the above structure will be described. In addition, in Figure 5 the example shown, the abnormal operation of the operating mechanism 11 or the reset operation in the case of an abnormal reset operation is described, that is, the reset operation in the case where automatic reset cannot be performed by the holding reset mechanism is described.

[0075] Figure 5 is an explanatory diagram showing the reset operation of the emergency braking device.

[0076] As shown in Figure 5 (a), in the state before the emergency braking device operates, a predetermined interval is formed between the pair of brake members 73 and the guide rail 201A. And, when the emergency braking device operates, during a power outage, or when the operating mechanism 11 abnormally operates, the power supply to the solenoid core 43 of the operating mechanism 11 is cut off. Therefore, by the force of the drive spring 20 of the drive mechanism 12, the first lifting rod 16A and the second lifting rod 16B rotate, and the movable iron core 44 separates from the solenoid core 43. In addition, the pair of brake members 73 and the connecting member 74 are lifted upward in the lifting direction by the first lifting member 13A. As a result, as shown in Figure 5 (b), the pair of brake members 73 clamp the guide rail 201A via the guide member 72 by the force of the biasing member.

[0077] When performing the reset operation, first, the operator enters the car cabin 120 of the car 1 and opens the inspection window 143 provided in the car cabin 120. Here, when the car 1 is not on the floor where the building side door provided in the building structure is located, the elevator is run upward to the position where the car 1 faces the building side door.

[0078] Next, as Figure 5 (c) shows, the operator inserts the jack 500 through the inspection window 143 and installs it on the first lifting member 13A. Then, the operator operates the jack 500. As Figure 5 (d) shows, the first lifting member 13A is pressed downward in the lifting direction. By pressing the first lifting member 13A downward, the connecting member 74 and the brake member 73 connected to the first lifting member 13A are also pressed downward in the lifting direction. In addition, by causing the brake member 73 to descend downward in the lifting direction, the brake member 73 moves away from the guide rail 201A. As a result, the braking action of the braking mechanism 10A on the guide rail 201A is released, and the emergency braking device can be forcibly reset.

[0079] In addition, the first lifting member 13A is connected to the second lifting member 13B via the drive mechanism 12. Therefore, by pressing the first lifting member 13A, the second lifting member 13B is also pressed. As a result, by performing the reset operation on the first lifting member 13A, the braking action of the second braking mechanism 10B can also be released simultaneously. By performing the above steps, the reset operations of the braking mechanisms 10A and 10B of the emergency braking device are completed.

[0080] In this way, according to the elevator of this example, the reset operation of the emergency braking device can be performed from within the car cabin 120 of the car 1. As a result, without the operator entering the hoistway and setting up scaffolding for the reset operation, etc., the reset operation of the emergency braking device can be easily performed. More specifically, the reset operations of the braking mechanisms 10A and 10B can be easily performed.

[0081] In addition, the inspection window 143 is provided at a position facing the first lifting member 13A, but it is not limited thereto. The position where the inspection window 143 is provided only needs to be a position where the operator can reach the first lifting member 13A from within the car cabin 120 and can perform the operation. Moreover, although the inspection window 143 is provided only on the side surface portion on the first lifting member 13A side in the car cabin 120, an inspection window 143 can also be provided on the side surface portion on the second lifting member 13B side in the car cabin 120.

[0082] 2. Second Embodiment Example

[0083] Next, with reference to Figure 6 and Figure 7 the elevator of the second embodiment example will be described.

[0084] Figure 6 This is a schematic structural diagram of the car of an elevator showing an example of a second embodiment. Figure 7 It is Figure 6 The sectional view taken along line A-A shown in the figure. In addition, the same reference numerals are given to the parts common to the elevator of the first embodiment, and repeated descriptions are omitted.

[0085] As Figure 6 and Figure 7 shown, the car 1B of the elevator of this second embodiment includes a car chamber 120 for carrying people and goods, an upper frame (crosshead) 121, lower frames 131, 134, vertical frames 140, and an emergency braking device.

[0086] The upper frame 121 representing the crosshead is a so-called hat-shaped steel material with the upper end portion in the vertical direction closed and the lower end portion in the vertical direction open. And the upper frame 121 extends along the width direction above the car chamber 120 of the car 1 in the vertical direction. A drive shaft 18 of a drive mechanism 12B is installed on the side surface portion in the front-rear direction of the upper frame 121 that is orthogonal to both the vertical direction and the width direction.

[0087] In addition, a flange portion is provided at the lower end portion in the vertical direction of the side surface portion of the upper frame 121. A mounting bracket 123 is fixed to this flange portion via fixing bolts. The mounting bracket 123 blocks a part of the opening at the lower end portion in the vertical direction of the upper frame 121. In addition, the opening at the lower end portion of the upper frame 121 can also be completely blocked by the mounting bracket 123.

[0088] The emergency braking device includes two braking mechanisms 10A, 10B, an operating mechanism 11B, a drive mechanism 12B, a first lifting member 13A, and a second lifting member 13B. The operating mechanism 11B and the drive mechanism 12 are provided on the upper frame 121. In addition, the operating mechanism 11B is provided on the mounting bracket 123 provided on the upper frame 121.

[0089] The first lifting member 13A is connected to the first lifting rod 16A, and the second lifting member 13B is connected to the second lifting rod 16B. The first lifting member 13A and the second lifting member 13B extend downward along the vertical frame 140 in the vertical direction (lifting direction). In addition, a first braking mechanism 10A is connected to the lower end portion of the first lifting member 13A, and a second braking mechanism 10B is connected to the lower end portion of the second lifting member 13B.

[0090] In addition, as Figure 7 shown, the first lifting member 13A faces the inspection window 143 of the side plate 142 provided in the car chamber 120. Thus, during the reset operation of the emergency braking device, an operator can perform operations on the first lifting member 13A from inside the car chamber 120 of the car 1B via the inspection window 143.

[0091] In addition, in the elevator of the second embodiment, a engaging portion for hooking a jack during the reset operation may also be provided on the first lifting member 13A.

[0092] Other structures are the same as those of the elevator in the first embodiment, so the description thereof is omitted. In the elevator of the second embodiment having such a structure, the same operational effects as those of the elevator in the above-described first embodiment can also be obtained.

[0093] In addition, it is not limited to the above-described embodiments shown in the drawings, and various modifications can be made without departing from the gist of the invention described in the scope of the technical solution.

[0094] In the above-described embodiment, as an operating mechanism, an example of an electric operating mechanism in which the electromagnetic core 43 and the movable iron core 44 are electromagnetically attracted and separated is described, but it is not limited thereto. As an operating mechanism for operating the braking mechanism, a mechanical operating mechanism using a governor for measuring the speed of the car may also be applied. In the mechanical operating mechanism, by applying the structure of the present invention, during the reset operation, the operator can also perform the operation from the car interior of the car without moving to the top of the hoistway.

[0095] In addition, the inspection window 143 is used not only during a power failure or when the operating mechanism fails, but also during the reset operation of a normal emergency braking device. In addition, the state of pressing the first lifting member 13A via the inspection window 143 may be maintained during the inspection and replacement of the operating mechanism and the drive mechanism.

[0096] In addition, as for the elevator, it can also be applied to a multi-car elevator in which multiple cars move up and down in one hoistway.

[0097] In addition, in this specification, words such as "parallel" and "orthogonal" are used, but they do not only refer to strict "parallel" and "orthogonal", and include "parallel" and "orthogonal", and may also be in a state of "substantially parallel" and "substantially orthogonal" within a range where their functions can be exerted.

[0098] Symbol Description

[0099] 1. 1B - car, 10A, 10B - braking mechanism, 11, 11B - actuating mechanism, 12, 12B - driving mechanism, 13A, 13B - lifting member, 16A, 16B - lifting rod, 18 - drive shaft, 41 - connecting member, 43 - electromagnetic core, 44 - movable iron core, 71 - housing, 72 - guiding member, 73 - braking member, 74 - connecting member, 120 - car compartment, 121 - upper frame, 131, 134 - lower frame, 140 - vertical frame, 141 - kick plate, 142 - side plate, 143 - inspection window, 201A, 201B - guide rail.

Claims

1. An elevator, characterized in that, Comprising: A car having a car compartment; Guide rails for guiding the movement of the car; and An emergency braking device for stopping the movement of the car, The emergency braking device comprising: A braking mechanism having a braking member for clamping the guide rail; A driving mechanism having a driving force for operating the braking mechanism; An operating mechanism for operating the driving mechanism; And A lifting member connected to the braking member for lifting the braking member when the driving mechanism operates, An inspection window capable of being accessed from the car compartment is formed in the car compartment of the car.

2. The elevator according to claim 1, wherein The driving mechanism has a lifting rod connected to the lifting member, The operating mechanism has: A connecting member connected to the lifting rod; A movable iron core fixed to the connecting member; and An electromagnetic core capable of detachably adsorbing the movable iron core.

3. The elevator according to claim 2, wherein A holding and resetting mechanism is provided to move the electromagnetic core in a direction approaching and departing from the movable iron core.

4. The elevator according to claim 1, wherein The car compartment has a floor and side plates surrounding the periphery of the floor, The inspection window is formed in the side plate.

5. The elevator according to claim 1, wherein The car compartment has: A floor; Side plates surrounding the periphery of the floor; and A skirting board disposed between the floor and the side plates for supporting the side plates, The inspection window is formed in the skirting board.

6. The elevator according to claim 1, wherein The driving mechanism and the operating mechanism are provided in a lower frame disposed at the lower part of the car compartment, The lifting member extends upward from the driving mechanism in the lifting direction.

7. The elevator according to claim 1, wherein The driving mechanism and the operating mechanism are disposed in an upper frame disposed at the upper part of the car compartment, The lifting member extends downward from the driving mechanism in the lifting direction, and the lower end is connected to the braking member.

8. A method for resetting an emergency braking device, The emergency braking device comprising: A braking mechanism having a braking member for clamping a guide rail; A driving mechanism having a driving force for operating the braking mechanism; An actuating mechanism that actuates the drive mechanism; And A lifting member connected to the braking member for lifting the braking member when the driving mechanism operates, The method for resetting the emergency braking device is characterized by comprising: The step of opening an inspection window provided in the car compartment of the car; and The step of pressing the lifting member through the inspection window from the car compartment to release the clamping of the braking member on the guide rail.

9. The method for resetting an emergency braking device according to claim 8, wherein A resetting mechanism is provided in the emergency braking device, and the steps are implemented when automatic reset based on the resetting mechanism cannot be performed.

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