Door stopper and elevator landing door

Abstract

An object of the present disclosure is to provide a door stopper that is not likely to be forgotten when necessary, and a landing door of an elevator.SOLUTION: The elevator door stopper according to the present disclosure includes the rotation member 3 formed of a long member and the contact member 4 attached to one end portion of the rotation member 3 in the longitudinal direction, the rotation member 3 can be attached to the door body 111 of the elevator landing door so as to be rotatable about the rotation axis L, and the rotation axis L is parallel to the normal direction of the door body 111 in a state in which the rotation member 3 is attached to the door body 111.SELECTED DRAWING: Figure 7

Description

[Technical Field]

[0001] The present disclosure relates to a door stopper and an elevator landing door. [Background technology]

[0002] BACKGROUND ART Conventionally, temporary door closing prevention devices for elevator sliding doors are known that are placed in guide grooves in the threshold to prevent the elevator sliding doors from automatically closing (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2004-51309 Summary of the Invention [Problem to be solved by the invention]

[0004] Conventional temporary door-closing prevention devices were carried by workers when performing elevator maintenance work, which meant there was a risk that they would be forgotten when needed.

[0005] In order to solve the above problem, the present disclosure aims to provide a door stopper and an elevator landing door that will not be forgotten when needed. [Means for solving the problem]

[0006] The door stopper according to the present disclosure comprises a rotating member made of an elongated member and a contact member attached to one longitudinal end of the rotating member, and the rotating member can be attached to the door body of the elevator landing door so as to be rotatable about a rotation axis, and when the rotating member is attached to the landing door, the rotation axis is parallel to the normal direction of the landing door.

[0007] The elevator landing door according to the present disclosure comprises the door stopper of the present disclosure and a door body, the door stopper being attached to the door body, the door body being capable of being attached to an elevator landing, and when the door body is attached to the landing, the rotating member rotates around the rotation axis, allowing the contact member to fit into or come out of a threshold groove provided in the landing, and when the direction in which the door body moves by itself without using power when attached to the landing is defined as the self-closing direction of the movement of the door body, when viewed along the rotation axis and when viewed so that the self-closing direction is the direction toward the right from the rotation axis, the rotation direction of the rotating member around the rotation axis when the contact member fits into the threshold groove is a clockwise direction. [Effects of the Invention]

[0008] With the door stopper and elevator landing door according to the present disclosure, there is no risk of forgetting the door stopper. [Brief explanation of the drawings]

[0009] [Figure 1] 1 is a schematic diagram showing an elevator in which a door stopper according to a first embodiment is used. [Figure 2] FIG. 2 is a schematic view showing a landing door as viewed from the elevator shaft side in FIG. 1. [Figure 3] FIG. 3 is a cross-sectional view taken along line III-III in FIG. 2. [Figure 4] FIG. 3 is a schematic view showing the door stopper of FIG. 2. [Figure 5] FIG. 5 is a cross-sectional view taken along line VV in FIG. 4. [Figure 6] 3 is a schematic view showing the door stopper of FIG. 2 in a housed position. FIG. [Figure 7] 3 is a schematic view showing the door stopper of FIG. 2 in an extended position. FIG. [Figure 8] FIG. 10 is a schematic view showing a door stopper according to a second embodiment. [Figure 9] 9 is a schematic view showing the door stopper of FIG. 8 in a housed position. [Figure 10] 9 is a schematic view showing the door stopper of FIG. 8 in the deployed position. DETAILED DESCRIPTION OF THE INVENTION

[0010] Hereinafter, embodiments of the present disclosure will be described with reference to the drawings. Embodiment 1 FIG. 1 is a schematic diagram showing an elevator 101 in which a door stopper 1 according to a first embodiment is used.

[0011] The elevator 101 is installed inside a building 100. A hoistway 100a is formed in the building 100 along the vertical direction. Each floor of the building 100 is provided with a hall 100b where passengers can wait or pass through to use the elevator 101. Each hall 100b is formed with an opening 100c that connects to the hoistway 100a.

[0012] The elevator 101 includes one car 102, an elevator control device 103, a lifting weight 104, a main rope 105, a hoisting machine 106, and hall doors 110 attached to each hall 100b.

[0013] One end of the main rope 105 is connected to the car 102, and the other end opposite to the one end is connected to a lifting weight 104. The main rope 105 is wound around a hoisting machine 106.

[0014] The elevator control device 103 controls the rotation of the hoisting machine 106 to move the car 102 along the hoistway 100a or stop it at any position. Each landing door 110 is attached between the hoistway 100a and each landing 100b at a position where it can close the opening 100c.

[0015] Each landing door 110 is attached so that a door surface 110a faces the corresponding landing 100b. A door back surface 110b opposite to the door surface 110a of each landing door 110 faces the elevator shaft 100a.

[0016] Each landing door 110 can move linearly in the horizontal direction. When each landing door 110 moves in an opening direction, which is one of the movement directions, the opening 100c is opened. As a result, the corresponding landing 100b and elevator shaft 100a become a continuous space.

[0017] When each landing door 110 moves in a closing direction, which is the opposite direction to the opening direction, the corresponding opening 100c is closed, thereby spatially separating the corresponding landing 100b and elevator shaft 100a.

[0018] A car door (not shown) is attached to the car 102, and when the car door moves in the opening direction, the inside and outside of the car 102 become a continuous space. When the car door moves in the closing direction, the inside and outside of the car 102 are spatially separated.

[0019] The elevator control device 103 stops the car 102 at a position corresponding to each hall 100b so that passengers can board the car 102 from the corresponding hall 100b or disembark the car 102 from the inside of the car 102 to the corresponding hall 100b.

[0020] Thereafter, the corresponding landing door 110 and the car door are moved in the opening direction, thereby allowing passengers to travel between the corresponding landing 100b and the inside of the car 102.

[0021] Fig. 2 is a schematic diagram showing the landing door 110 as seen from the elevator shaft 100a side in Fig. 1. Fig. 3 is a cross-sectional view showing a cross section taken along line III-III in Fig. 2. The landing door 110 has a door body 111, a pair of door shoes 112, a mounting fixture 113, a door stopper 1, and a support drive mechanism (not shown).

[0022] The door body 111 is supported and attached to the upper end of the landing 100b by a support drive mechanism so as to close the opening 100c. The door body 111 has a rectangular plate-shaped panel body 111a and structural members 111b located on the four edges of the panel body 111a. The structural members 111b may be appropriately installed on the panel body 111a.

[0023] The door body 111 has a body front surface 111c and a body back surface 111d. When the door body 111 is attached to the upper end of the landing 100b, the body front surface 111c faces the landing 100b, and the body back surface 111d faces the elevator shaft 100a.

[0024] The door body 111 can be moved linearly between a closed position and an open position by a support drive mechanism. The direction of the door body 111 toward the closed position is the closing direction, and the direction toward the open position is the opening direction. The opening direction and the closing direction are opposite directions.

[0025] The closed position is a position where the door body 111 closes the opening 100c. The open position is a position where the door body 111 has moved in the opening direction and cannot move further in the opening direction. In the open position, the door body 111 does not close the opening 100c. The direction of arrow A shown in Figure 2 indicates the closing direction.

[0026] When no force is applied from the support drive mechanism, the door body 111 can move in the closing direction by its own weight. Furthermore, the door body 111 can reach the closed position by its own weight and remain in the closed position. The movement of the door body 111 in the closing direction by its own weight and the remaining in the closed position are referred to as the self-closing operation.

[0027] The self-closing direction is the direction in which the door body 111 moves due to the self-closing operation, i.e., the direction in which the door body 111 moves by itself without using power when the door body 111 is attached to the hall 100b of the elevator 101. The self-closing direction and the closing direction are the same direction.

[0028] When the door body 111 is in the closed position, the opening 100c is closed by the door body 111, and passengers and workers cannot pass through the opening 100c. When the door body 111 is in the open position, the door body 111 does not cover the opening 100c, and the opening 100c is in an open state.

[0029] The door body 111 is a member that constitutes the majority of the landing door 110, and therefore, with regard to movement, the door body 111 can be read as the landing door 110. For example, when the landing door 110 is in the closed position, the door body 111 is also in the closed position.

[0030] Each of the pair of door shoes 112 is attached to the lower end of the door body 111 on the back surface 111d side of the body. Each door shoe 112 is attached to the door body 111 by a fixture 113. In this embodiment, the fixture 113 is a bolt.

[0031] Each door shoe 112 has a shoe holding portion 112a and a shoe member 112b. The shoe member 112b is attached to the lower end of the shoe holding portion 112a.

[0032] When each door shoe 112 is attached to the door body 111, the shoe member 112b is located below the shoe holding portion 112a. The shoe member 112b has a shape that corresponds to the threshold groove 100d. The threshold groove 100d will be described later.

[0033] Each shoe holding portion 112a is formed with a through hole (not shown) corresponding to a bolt serving as the fixture 113. A screw hole (not shown) corresponding to a bolt serving as the fixture 113 is formed in the lower end of the door body 111.

[0034] The bolts serving as the attachments 113 are inserted into the through holes of the shoe holding portions 112a and screwed into the corresponding screw holes, thereby attaching the door shoes 112 to the door main body 111.

[0035] The threshold groove 100d is formed at the lower end of the opening 100c and at the end of the landing 100b on the elevator shaft 100a side. The threshold groove 100d is a groove formed in a concave shape and is formed along the moving direction of the landing door 110.

[0036] When each door shoe 112 is attached to the door body 111 and the landing door 110 is attached to the upper end of the opening 100c, the shoe member 112b fits into a threshold groove 100d formed at the end of the landing 100b.

[0037] The threshold groove 100d is formed by a bottom surface 100e, which is a wall surface of the threshold groove 100d, and a pair of side surfaces 100f. The pair of side surfaces 100f are each continuous with the bottom surface 100e and face each other.

[0038] The longitudinal direction of the threshold groove 100d is the direction of the threshold groove 100d along the moving direction of the landing door 110. The direction of the threshold groove 100d along the horizontal plane, which is perpendicular to the longitudinal direction of the threshold groove 100d, is the groove width direction of the threshold groove 100d, and the length of the groove width of the threshold groove 100d is GL.

[0039] Fig. 4 is a schematic diagram showing the door stopper 1 of Fig. 2. Fig. 5 is a cross-sectional view showing a cross section taken along line VV of Fig. 4. The door stopper 1 includes a fixed member 2, a rotating member 3, a contact member 4, and a retaining member 5.

[0040] The fixing member 2 is a long plate-like member. Two through holes 2a penetrating in the plate thickness direction are formed at one end in the longitudinal direction of the fixing member 2. The two through holes 2a are formed along the longitudinal direction of the fixing member 2. Note that the fixing member 2 does not have to be a long plate-like member.

[0041] The rotating member 3 is a long, plate-like member. One longitudinal end of the rotating member 3 and the other end opposite the one end of the fixed member 2 are attached so as to be rotatable relative to each other. The axis of the center of rotation of the rotating member 3 relative to the fixed member 2 is defined as the rotation axis L. Note that the rotating member 3 does not have to be a plate-like member.

[0042] The rotation axis L, the thickness direction of the fixed member 2, and the thickness direction of the rotating member 3 are all parallel to one another. In Figure 4, the rotation axis L is perpendicular to the plane of the paper. A well-known mechanism can be used as a mechanism for rotatably attaching the rotating member 3 to the fixed member 2.

[0043] The contact member 4 is attached to one end of the rotating member 3 in the longitudinal direction, opposite to the other end. The contact member 4 is made of a rubber material. The direction of the contact member 4 along the rotation axis L is defined as the width direction of the contact member 4. The length of the contact member 4 in the width direction is defined as WL.

[0044] The retaining member 5 is a long, plate-like member made of a leaf spring. A hook portion 5a is formed at one end in the longitudinal direction of the retaining member 5. The hook portion 5a is formed by bending one end of the retaining member 5 into a hook shape. The retaining member 5 is formed in a J-shape when viewed along the plane of the retaining member 5.

[0045] The other longitudinal end of the stopper member 5 opposite to the one end is rotatably attached to the rotating member 3. The shape of the tip of the hook portion 5a corresponds to the plate thickness of the fixing member 2, and the tip of the hook portion 5a can be hooked onto the fixing member 2.

[0046] Specifically, by rotating the rotating member 3, the rotating member 3 is rotated to a position where the hook portion 5a hooks onto the fixed member 2. In this state, the stopper member 5 is elastically deformed, and the hook portion 5a can be hooked onto the fixed member 2.

[0047] This makes it possible to fix the rotary member 3 and the fixed member 2 to each other. That is, it is possible to prevent the rotary member 3 from rotating relative to the fixed member 2.

[0048] On the other hand, the state in which the hook portion 5a is hooked on the fixing member 2 can be released by elastically deforming the retaining member 5 made of a leaf spring.

[0049] 2 and 3, the description will continue. The door stopper 1 is attached to the door body 111 together with one door shoe. The door shoe attached together with the door stopper 1 is door shoe 112, which is the leading door shoe in the closing direction, i.e., the self-closing direction.

[0050] Each bolt of the mounting fixture 113 is inserted into a through-hole 2a formed in the fixing member 2 of the door stopper 1 and a through-hole formed in the shoe holding portion 112a of the door shoe 112, and is then screwed into a corresponding screw hole in the door main body 111. In this way, the door shoe 112 and the door stopper 1 are attached and fixed to the door main body 111.

[0051] The door stopper 1 is attached to the door body 111 so that the end of the fixed member 2 to which the rotating member 3 is attached is located on the side facing the closing direction. With the fixed member 2 attached to the door body 111, the rotating member 3 can rotate relative to the door body 111.

[0052] When the rotating member 3 is attached to the door body 111, the axis of the center of rotation of the rotating member 3 relative to the door body 111 is the rotation axis L. When viewed vertically in this state, the rotation axis L is perpendicular to the longitudinal direction of the threshold groove 100d.

[0053] That is, the door stopper 1 is attached to the door main body 111 so that, when viewed from the vertical direction, the rotation axis L of the rotating member 3 is perpendicular to the longitudinal direction of the threshold groove 100d and the moving direction of the landing door 110. Since the door main body 111 moves along the threshold groove 100d, the rotation axis L is parallel to the normal direction of the main body front surface 111c or the main body back surface 111d of the door main body 111.

[0054] The door front surface 110a and the door back surface 110b of the landing door 110 are the main body front surface 111c and the main body back surface 111d of the door main body 111, and therefore the rotation axis L is parallel to the normal direction of the door front surface 110a and the door back surface 110b of the landing door 110.

[0055] Since the door body 111 is plate-shaped, the normal directions of the door front surface 110a and the door back surface 110b are the same. In Fig. 2, the rotation axis L is perpendicular to the plane of the paper.

[0056] The widthwise length WL of the contact member 4 is smaller than the groove width GL of the threshold groove 100d. As a result, when the rotating member 3 rotates around the rotation axis L, the contact member 4 can fit into the threshold groove 100d and can come out of the threshold groove 100d.

[0057] Next, we will explain how to use the door stopper 1. Figure 6 is a schematic diagram showing the door stopper 1 of Figure 2 in a stored position. Figure 7 is a schematic diagram showing the door stopper 1 of Figure 2 in a deployed position.

[0058] When the door stopper 1 is attached to the door body 111, the self-closing action of the landing door 110 can be prevented by using the door stopper 1. When it is necessary to hold the landing door 110 in the open position or at any position between the open position and the closed position during maintenance work on the elevator 101, the worker uses the door stopper 1. By using the door stopper 1, the landing door 110 can be stopped at any position.

[0059] On the other hand, during normal operation of the elevator 101, the landing door 110 moves by the power of a support drive device (not shown) in response to a command from the elevator control device 103. Therefore, during normal operation of the elevator 101, the landing door 110 needs to be movable by control, and therefore the contact member 4 needs to be positioned in the storage position so that the door stopper 1 does not function.

[0060] First, the door stopper 1 positioned in the stowed position will be described. The state of the door stopper 1 shown in Figure 6 is the state of the door stopper 1 when the elevator 101 is in normal operation, i.e., the state in which the door stopper 1 is in the stowed position. Before the elevator 101 begins normal operation, an operator rotates the rotating member 3 in the direction C in Figure 6 about the rotation axis L to position the rotating member 3 in the stowed position.

[0061] When viewed along the rotation axis L, the center of gravity of the rotating member 3 and the contact member 4 passes the rotation axis L and rotates toward the opening direction to reach the stored position. As shown in Figure 6, the rotating member 3 hits the mounting fixture 113 and is stopped without being able to rotate any further in the C direction.

[0062] As described above, in this embodiment, the stored position is a position where, when viewed along the rotation axis L, the center of gravity of the rotating member 3 and the contact member 4 is located on the side facing the opening direction beyond the rotation axis L, and where the rotation of the rotating member 3 stops. As a result, the door stopper 1 is located in the stored position.

[0063] With the rotating member 3 in the storage position, the worker can rotate the stop member 5 as needed to hook the hook portion 5a onto the fixed member 2. The worker can elastically deform the stop member 5 to hook the hook portion 5a onto the fixed member 2. By hooking the hook portion 5a onto the fixed member 2, the rotating member 3 can be fixed to the fixed member 2.

[0064] That is, in the stored position, the stop member 5 can fix the rotating member 3 to the fixed member 2. The stop member 5 can prevent the rotating member 3 from rotating relative to the landing door 110. FIG. 6 shows a state in which the rotating member 3 is located in the stored position and the hook portion 5a is hooked onto the fixed member 2.

[0065] Next, the door stopper 1 positioned at the deployed position will be described. The state of the door stopper 1 shown in Fig. 7 is the state of the door stopper 1 when the landing door 110 is stopped at an arbitrary position due to maintenance work or the like.

[0066] The worker removes the hook portion 5a of the stop member 5 from the fixed member 2, and releases the fixation between the rotating member 3 and the fixed member 2. The worker elastically deforms the stop member 5 and removes the hook portion 5a that is hooked on the fixed member 2.

[0067] Next, the worker rotates the rotating member 3 in the direction B in Figure 7 around the rotation axis L so that the contact member 4 fits into the threshold groove 100d. As a result, the contact member 4 fits into the threshold groove 100d.

[0068] Furthermore, the rotating member 3 rotates due to its own weight or the force applied by the worker, and the contact member 4 fits further into the threshold groove 100d. As a result, the surface of the contact member 4 comes into contact with one of the wall surfaces of the threshold groove 100d.

[0069] Even when the rotating member 3 rotates and the contact member 4 fits into the threshold groove 100d, the landing door 110 continues to perform the self-closing operation. Because the contact member 4 is in contact with one of the wall surfaces of the threshold groove 100d, the landing door 110 performs the self-closing operation and moves in the self-closing direction.

[0070] At this time, friction generated between the contact member 4 and the wall surface of the threshold groove 100d causes the rotating member 3 to further rotate in direction B. This brings the contact member 4 and the threshold groove 100d into stronger contact, and the door stopper 1 can stop the movement of the landing door 110 in the self-closing direction.

[0071] In this state, the door stopper 1 is located at the deployed position, which is a position where the contact member 4 fits into the threshold groove 100d to a degree that can stop the movement of the landing door 110 in the self-closing direction.

[0072] When the door stopper 1 is attached to the landing door 110 and the landing door 110 is attached to the opening 100c, the rotating member 3 having the contact member 4 attached to its end cannot rotate by passing between the rotation axis L and the threshold groove 100d.

[0073] That is, the distance DL from the rotation axis L to the bottom surface 100e of the threshold groove 100d is smaller than the maximum rotation radius R of the arc traced by the path of the contact member 4 rotating around the rotation axis L.

[0074] Therefore, even if the rotating member 3 and the contact member 4 are rotated so that they pass below the rotation axis L, the contact member 4 interferes with the threshold groove 100d, and the rotating member 3 and the contact member 4 cannot rotate so that they pass below the rotation axis L.

[0075] Here, we will explain the relationship between the rotation direction of the rotating member 3 and the self-closing direction. As shown in Figures 6 and 7, when the direction toward the right side of the paper as viewed along the rotation axis L is the self-closing direction, the direction in which the rotating member 3 rotates with the self-closing operation is direction B, i.e., clockwise.

[0076] In other words, when viewed along the rotation axis L and with the self-closing direction toward the right, the rotation direction of the rotating member 3 around the rotation axis L when the contact member 4 fits into the threshold groove 100d is clockwise.

[0077] When the door stopper 1 is attached in this state, and the contact member 4 is in contact with the wall surface of the threshold groove 100d, the rotating member 3 rotates clockwise in conjunction with the self-closing operation due to friction with the wall surface of the threshold groove 100d.

[0078] The contact member 4 moves further in a direction approaching the bottom surface 100e of the threshold groove 100d by utilizing the force of the landing door 110 moving in the self-closing direction. As a result, the contact member 4 fits more deeply into the threshold groove 100d. In a state where the contact member 4 is in contact with the bottom surface 100e, the contact member 4 is pressed more strongly against the bottom surface 100e.

[0079] This allows the door stopper 1 to prevent the self-closing operation of the landing door 110. That is, when the door stopper 1 is viewed along the rotation axis L, the contact member 4 is fitted into the threshold groove 100d on the side facing the self-closing direction relative to the rotation axis L, thereby preventing the self-closing operation.

[0080] In addition, when the contact member 4 is fitted into the threshold groove 100d with elastic deformation, the contact member 4 does not need to contact the bottom surface 100e. Even in this state, the contact member 4 is in contact with the side surface 100f, and therefore the door stopper 1 can prevent the landing door 110 from self-closing.

[0081] The door stopper 1 according to the first embodiment includes a rotating member 3 formed of an elongated member and a contact member 4 attached to one longitudinal end of the rotating member 3. The rotating member 3 can be attached to the door body 111 of the landing door 110 of the elevator 101 so as to be rotatable about a rotation axis L. When the rotating member 3 is attached to the door body 111, the rotation axis L is parallel to the normal direction of the door body 111. This allows the door stopper 1 to be attached to the landing door 110. Therefore, there is no risk of forgetting the door stopper 1 during maintenance work, etc. Furthermore, this prevents the door stopper 1 from coming off the landing door 110 and also prevents the door stopper 1 from falling into the elevator shaft 100a, etc. This prevents the door stopper 1 from being lost.

[0082] In the door stopper 1 according to the first embodiment, the contact member 4 is sized to be able to fit into the threshold groove 100d formed in the landing 100b of the elevator 101 corresponding to the landing door 110. This allows the contact member 4 to be fitted into the threshold groove 100d, and enables the landing door 110 to be stopped more firmly. Furthermore, even if an unexpected force acts on the door stopper 1, the contact member 4 is not easily disengaged from the threshold groove 100d because the contact member 4 is fitted into the threshold groove 100d, and the landing door 110 can be stopped stably.

[0083] The door stopper 1 according to the first embodiment further includes a fixed member 2 attached to the door main body 111, and the rotating member 3 is rotatably attached to the fixed member 2. Moreover, the fixed member 2 is attached to the door main body 111, and thereby the rotating member 3 is attached to the door main body 111 via the fixed member 2. This increases the likelihood that, for example, even if an unexpected force acts on the contact member 4, damage to the landing door 110 will be limited to the rotating member 3 or the fixed member 2. Therefore, damage to the landing door 110 can be prevented, and the range of damage can be limited to a small area such as the door stopper 1.

[0084] The door stopper 1 according to the first embodiment further includes a stop member 5, and when the rotating member 3 is rotatably attached to the door body 111, the stop member 5 can prevent the rotating member 3 from rotating relative to the door body 111. This makes it possible to prevent the rotating member 3 from rotating when the door stopper 1 is not needed. Therefore, it is possible to prevent the door stopper 1 from functioning during normal operation of the elevator 101. Therefore, the door stopper 1 no longer interferes with the movement of the landing door 110, enabling stable operation of the elevator 101.

[0085] The landing door 110 of the elevator 101 according to the first embodiment includes the door stopper 1 of the present disclosure and a door body 111, and the door stopper 1 is attached to the door body 111. The door body 111 can be attached to a landing 100b of the elevator 101. When the door body 111 is attached to the landing 100b, the rotating member 3 rotates about the rotation axis L, so that the contact member 4 can fit into or come out of a threshold groove 100d provided in the landing 100b. When the door body 111 is attached to the landing 100b, the direction in which the door body 111 moves by itself without using power is defined as a self-closing direction among the moving directions of the door body 111. Furthermore, at this time, when viewed along the rotation axis L and with the self-closing direction being the direction toward the right from the rotation axis L, the rotation direction of the rotating member 3 about the rotation axis L when the contact member 4 fits into the threshold groove 100d is the clockwise direction. As a result, the door stopper 1 is attached to the door main body 111. Therefore, there is no risk of forgetting the door stopper 1 during maintenance work, etc. Furthermore, as a result, the door stopper 1 does not come off the door main body 111, and there is no risk of the door stopper 1 falling into the elevator shaft 100a. Therefore, it is possible to prevent the door stopper 1 from being lost. Furthermore, as a result, the movement of the door main body 111 in the self-closing direction can be utilized to fit the contact member 4 of the door stopper 1 into the threshold groove 100d. Therefore, the movement of the landing door 110 in the self-closing direction can be utilized to more reliably stop the landing door 110.

[0086] In the landing door 110 of the elevator 101 according to the first embodiment, when the door body 111 is attached to the landing 100b, the rotation of the rotating member 3 allows the center of gravity of the rotating member 3 and the contact member 4 to be positioned beyond the rotation axis L and on the opposite side of the self-closing direction, as viewed along the rotation axis L. As a result, the weight of the rotating member 3 and the contact member 4 allows the rotating member 3 and the contact member 4 to be positioned beyond the rotation axis L and on the opposite side of the self-closing direction. Therefore, once the rotating member 3 is positioned beyond the rotation axis L and on the opposite side of the self-closing direction, the door stopper 1 does not interfere with the movement of the door body 111. Furthermore, even if the fixing of the rotating member 3 by the stopper member 5 is released due to an unexpected event, the door stopper 1 does not interfere with the movement of the door body 111. This further reduces the risk that the door stopper 1 will interfere with the movement of the door body 111, enabling stable operation of the elevator 101.

[0087] The landing door 110 of the elevator 101 according to the first embodiment further includes a plurality of door shoes 112 and a mounting fixture 113 for mounting each of the door shoes 112 to the door body 111. The door stopper 1 is mounted to the door body 111 together with at least one of the plurality of door shoes 112 by the mounting fixture 113. This allows the door stopper 1 to be mounted to the door body 111 without requiring processing work such as drilling screw holes or welding mounting members to the door body 111. This makes it easier to mount the door stopper 1 to the door body 111. This makes it possible to prevent the door stopper 1 from being lost in a greater number of elevators 101. Furthermore, the door stopper 1 can be mounted to the door body 111 of existing elevators 101.

[0088] In the landing door 110 of the elevator 101 according to the first embodiment, at least one door stopper 1 is attached to the door shoe 112 that is attached foremost in the self-closing direction among the multiple door shoes 112 when the door body 111 is attached to the landing 100b. This makes it easier to reach the door stopper 1 from the landing 100b when operating it. That is, when operating the door stopper 1 during maintenance work, the door body 111, which is closed by the self-closing operation, is moved in the direction opposite to the self-closing direction to create a gap, and a hand is inserted into the gap from the landing 100b side to access the door back surface 110b of the landing door 110. Therefore, the door shoe 112 that is attached foremost in the self-closing direction is the door shoe 112 that is closest to the gap. This improves work efficiency.

[0089] In the landing door 110 of the elevator 101 according to the first embodiment, when the door body 111 is attached to the landing 100b and viewed vertically, the rotation axis L and the longitudinal direction of the threshold groove 100d are perpendicular to each other. This allows the rotating member 3 and the contact member 4 to rotate along the door body 111, and the door stopper 1 can be prepared for use in the minimum necessary space along the door body 111. Therefore, there is no need to prepare a large space for using the door stopper 1, improving work efficiency.

[0090] In the landing door 110 of the elevator 101 according to the first embodiment, when the door body 111 is attached to the landing 100b, the distance DL from the rotation axis L to the bottom surface 100e of the threshold groove 100d is smaller than the maximum rotation radius R of the arc traced by the trajectory of the contact member 4 rotating about the rotation axis L. As a result, the contact member 4 cannot rotate by passing between the rotation axis L and the bottom surface 100e of the threshold groove 100d. Therefore, the force moving in the self-closing direction can be continuously used to bring the contact member 4 into contact with the threshold groove 100d. This makes it possible to more firmly and continuously prevent the landing door 110 from moving.

[0091] Embodiment 2 The door stopper 1 of the second embodiment differs from the door stopper 1 of the first embodiment in that it does not include the fixing member 2. Fig. 8 is a schematic diagram showing the door stopper 1 according to the second embodiment.

[0092] The door stopper 1 includes a rotary member 3, a contact member 4, a stop member 5, and a collar 6. The rotary member 3 is formed with a through-hole 3a for the collar.

[0093] The collar 6 is a hollow cylindrical member. When the collar 6 is inserted into the collar through-hole 3a, the rotating member 3 and the collar 6 can rotate relative to each other. That is, the center line of the collar 6 and the collar through-hole 3a becomes the rotation axis L.

[0094] The size of the hole in the collar 6 is large enough to fit the threaded portion of the bolt that is the fixture 113, but not the head of the bolt. The length of the collar 6 is larger than the plate thickness of the rotating member 3.

[0095] The door stopper 1 is attached to the door body 111 together with a door shoe 112 by a mounting fixture 113. With the collar 6 inserted into the collar through-hole 3a, the bolt which is the mounting fixture 113 is inserted into the hole of the collar 6, and is then screwed together with the door shoe 112 into the screw hole.

[0096] Since the length of the collar 6 is greater than the thickness of the rotating member 3, the bolt serving as the mounting fixture 113 can be fastened into the screw hole in the door body 111 to press the collar 6 and, via the collar 6, the shoe holding portion 112a against the door body 111. This allows the collar 6 and the door shoe 112 to be fixed to the door body 111.

[0097] Since the rotating member 3 is rotatable relative to the collar 6, when the door stopper 1 is attached to the door main body 111, the rotating member 3 is rotatable about the rotation axis L. In this way, the rotating member 3 is attached to the door main body 111.

[0098] Next, we will explain how to use the door stopper 1. Figure 9 is a schematic diagram showing the door stopper 1 of Figure 8 in a stored position. Figure 10 is a schematic diagram showing the door stopper 1 of Figure 8 in a deployed position.

[0099] The state of the door stopper 1 shown in Figure 9 is the state of the door stopper 1 when the elevator 101 is in normal operation. Before the elevator 101 begins normal operation, an operator rotates the rotating member 3 in the direction C in Figure 6 around the rotation axis L to position the rotating member 3 at the stored position.

[0100] When viewed from the direction along the rotation axis L, the rotation member 3 is rotated so that the contact member 4 is positioned on the side facing the opening direction relative to the rotation axis L, and the rotation member 3 reaches the storage position.

[0101] With the rotating member 3 in the storage position, the worker can rotate the stop member 5 as needed to hook the hook portion 5a onto the mounting fixture 113. When the hook portion 5a is caught on the mounting fixture 113, the rotating member 3 and the mounting fixture 113 are fixed to each other.

[0102] In this embodiment, the rotary member 3 is fixed using the fixture 113, but the stopper member 5 may be hooked onto a member such as the door main body 111 or the door shoe 112 and fixed without using the fixture 113.

[0103] The state of the door stopper 1 shown in Figure 10 is the state of the door stopper 1 when the landing door 110 is stopped at an arbitrary position due to maintenance work or the like. The worker removes the hook portion 5a of the stop member 5 from the fixture 113, and releases the fixation between the rotating member 3 and the fixture 113. Next, the worker rotates the rotating member 3 in the direction B in Figure 10 around the rotation axis L, and fits the contact member 4 into the threshold groove 100d.

[0104] This makes it possible to prevent the landing door 110 from self-closing by using the door stopper 1. Other configurations of the door stopper 1 of the second embodiment are the same as those of the door stopper 1 of the first embodiment, and therefore description thereof will be omitted.

[0105] The door stopper 1 in the second embodiment further includes a collar 6, and the rotary member 3 is formed with a collar through-hole 3a, into which the collar 6 can be inserted. The rotary member 3 is rotatable relative to the collar 6 inserted into the collar through-hole 3a. The rotary member 3 is attached to the door main body 111 via the collar 6 by attaching the collar 6 inserted into the collar through-hole 3a to the door main body 111. This eliminates the need to attach the rotary member 3 to another member via a rotation mechanism. This reduces the manufacturing cost of the door stopper 1.

[0106] The door stopper 1 in the second embodiment includes a collar 6. However, this is not limited to this. The collar 6 does not have to be included. In this case, for example, the position corresponding to the rotating member 3 of the bolt, which is the mounting fixture 113, may be a large diameter portion, and the position corresponding to the door shoe 112 may be a small diameter portion. The step between the large diameter portion and the small diameter portion may press the shoe holding portion 112a against the door main body 111. In this way, the number of parts of the door stopper 1 can be reduced, and the door stopper 1 can be manufactured at lower cost.

[0107] Furthermore, the door stopper 1 in the first and second embodiments is attached to the door main body 111 together with the door shoe 112 by the attachment 113. However, this is not limited to this. For example, the door stopper 1 may be attached to the door main body 111 at a location separate from the door shoe 112.

[0108] Furthermore, in the door stoppers 1 in the first and second embodiments, when viewed along the rotation axis L, the stop member 5 fixes the rotating member 3 to the landing door 110 in a state in which the center of gravity of the rotating member 3 and the contact member 4 exceeds the rotation axis L and is positioned on the opposite side of the self-closing direction. However, this is not limited to this. When the rotating member 3 is fixed to the landing door 110, the position of the center of gravity of the rotating member 3 and the contact member 4 may be on the side facing the self-closing direction with respect to the rotation axis L. In this case, if the stop member 5 is not used, the rotating member 3 would rotate, for example, in direction B in FIG. 6 , and the contact member 4 would get stuck in the threshold groove 100d. Therefore, in this case, the stop member 5 may be suitably installed and used so that the rotating member 3 does not rotate in direction B and the contact member 4 does not get stuck in the threshold groove 100d.

[0109] Furthermore, in the door stopper 1 in the first and second embodiments, the stop member 5 is attached to the rotating member 3. However, this is not limited to this. For example, the stop member 5 may not be provided. In this case, the contact member 4 must pass above the rotation axis L to be located at the stowed position, and then pass above the rotation axis L to reach the deployed position. This allows the contact member 4 and the rotating member 3 to remain at the stowed position due to their own weight. Also, for example, instead of the door stopper 1 not including the stop member 5, the rotating member 3 may be fixed to the door main body 111, the door shoe 112, or the mounting fixture 113 using another member as appropriate. For example, the rotating member 3 in the stowed position and the door main body 111, the door shoe 112, or the mounting fixture 113 may be fixed to each other using a wire, a piece of wire, or a piece of tape. Alternatively, any of the door main body 111, the door shoe 112, and the mounting fixture 113 may have a stop member, and the rotating member 3 in the stowed position may be fixed by the stop member.

[0110] Furthermore, in the door stopper 1 in the first and second embodiments, the widthwise length WL of the contact member 4 is smaller than the groove width GL of the threshold groove 100d. However, this is not limited to this. The widthwise length WL of the contact member 4 may be equal to or greater than the groove width GL of the threshold groove 100d. In this case, it is sufficient that the widthwise length WL of the contact member 4 is smaller than the groove width GL of the threshold groove 100d at least when the contact member 4 is compressed in the widthwise direction and elastically deformed. The contact member 4 may be pushed into the threshold groove 100d, causing the contact member 4 to elastically deform and fit into the threshold groove 100d. As a result, the rotating member 3 rotates about the rotation axis L, allowing the contact member 4 to fit into and then move out of the threshold groove 100d. Furthermore, since the contact member 4 in the state compressed in the width direction is more firmly fitted into the threshold groove 100d, the self-closing operation of the landing door 110 can be more firmly prevented.

[0111] Various aspects of the present disclosure are summarized below as appendices.

[0112] (Appendix 1) a rotating member made of an elongated member; a contact member attached to one end of the rotating member in the longitudinal direction; Equipped with The rotating member can be attached to the door body of the elevator landing door so as to be rotatable about a rotation axis, When the rotation member is attached to the door body, the rotation axis is parallel to the normal direction of the door body. Door stopper. (Appendix 2) The contact member is sized to fit into a threshold groove formed in the elevator hall corresponding to the door body. A door stopper as described in Appendix 1. (Appendix 3) Further, a fixing member attached to the door body is provided, the rotating member is rotatably attached to the fixed member; The rotating member is attached to the door main body via the fixing member by attaching the fixing member to the door main body. A door stopper as described in Appendix 1 or Appendix 2. (Appendix 4) More colors available. The rotary member has a through hole for a collar formed therein, The collar can be inserted into the collar through-hole, The rotary member is rotatable relative to the collar inserted into the collar through-hole, The rotary member is attached to the door body via the collar by attaching the collar inserted into the collar through-hole to the door body. A door stopper as described in Appendix 1 or Appendix 2. (Appendix 5) Further provided with a stop member, When the rotary member is rotatably attached to the door body, the stop member can prevent the rotary member from rotating relative to the door body. 5. The door stopper according to any one of claims 1 to 4. (Appendix 6) A door stopper according to any one of appendices 1 to 5; The door body and Equipped with The door stopper is attached to the door body, The door body may be attached to the elevator landing, When the door body is attached to the landing, the rotating member rotates around the rotation axis, so that the contact member can fit into or come out of a threshold groove provided in the landing, When the direction in which the door body moves by itself without using power in a state in which the door body is attached to the landing is defined as a self-closing direction among the movement directions of the door body, When viewed along the rotation axis and when the self-closing direction is viewed as a direction toward the right from the rotation axis, the rotation direction of the rotating member around the rotation axis when the contact member fits into the threshold groove is a clockwise direction. Elevator landing door. (Appendix 7) When the door body is attached to the landing, the rotation member rotates, and when viewed along the rotation axis, the center of gravity of the rotation member and the contact member can be positioned on the opposite side to the self-closing direction beyond the rotation axis. The elevator landing door described in Appendix 6. (Appendix 8) Multiple door shoes, a mounting fixture for mounting each of the door shoes to the door body; Further provided with The door stopper is attached to the door body together with at least one of the plurality of door shoes by the attachment tool. An elevator landing door as described in Appendix 6 or Appendix 7. (Appendix 9) At least one of the door stoppers is attached together with the door shoe that is attached foremost in the self-closing direction among the plurality of door shoes when the door body is attached to the landing. The elevator landing door described in Appendix 8. (Appendix 10) When the door body is attached to the landing and viewed along the vertical direction, the rotation axis and the longitudinal direction of the threshold groove are perpendicular to each other. 10. An elevator landing door according to any one of claims 6 to 9. (Appendix 11) When the door body is attached to the landing, the distance from the rotation axis to the bottom surface of the threshold groove is smaller than the maximum rotation radius of the arc drawn by the locus of the contact member rotating around the rotation axis. 11. An elevator landing door according to any one of claims 6 to 10. [Explanation of symbols]

[0113] 1 door stopper, 2 fixing member, 2a through hole, 3 rotating member, 3a collar through hole, 4 contact member, 5 stop member, 5a hook portion, 6 collar, 100 building, 100a elevator shaft, 100b landing, 100c opening, 100d threshold groove, 100e bottom surface, 100f side, 101 elevator, 102 car, 103 elevator control device, 104 lifting weight, 105 main rope, 106 hoist, 110 landing door, 110a door surface, 110b door back surface, 111 door body, 111a panel body, 111b structural member, 111c main body surface, 111d main body back surface, 112 door shoe, 112a shoe holding portion, 112b shoe member, 113 mounting fixture, L Axis of rotation.

Claims

1. a rotating member made of an elongated member; a contact member attached to one end of the rotating member in the longitudinal direction; Equipped with The rotating member can be attached to the door body of the elevator landing door so as to be rotatable about a rotation axis, When the rotation member is attached to the door body, the rotation axis is parallel to the normal direction of the door body. Door stopper.

2. The contact member is sized to fit into a threshold groove formed in the elevator hall corresponding to the door body. The door stopper according to claim 1 .

3. Further, a fixing member attached to the door body is provided, the rotating member is rotatably attached to the fixed member; The rotating member is attached to the door main body via the fixing member by attaching the fixing member to the door main body. The door stopper according to claim 1 .

4. More colors available. The rotary member has a through hole for a collar formed therein, The collar can be inserted into the collar through-hole, The rotary member is rotatable relative to the collar inserted into the collar through-hole, The rotary member is attached to the door body via the collar by attaching the collar inserted into the collar through-hole to the door body. The door stopper according to claim 1 .

5. Further provided with a stop member, When the rotary member is rotatably attached to the door body, the stop member can prevent the rotary member from rotating relative to the door body. The door stopper according to claim 1 .

6. A door stopper according to any one of claims 1 to 5; The door body and Equipped with The door stopper is attached to the door body, The door body may be attached to the elevator landing, When the door body is attached to the landing, the rotating member rotates around the rotation axis, so that the contact member can fit into or come out of a threshold groove provided in the landing, When the direction in which the door body moves by itself without using power in a state in which the door body is attached to the landing is defined as a self-closing direction among the movement directions of the door body, When viewed along the rotation axis and when the self-closing direction is viewed as a direction toward the right from the rotation axis, the rotation direction of the rotating member around the rotation axis when the contact member fits into the threshold groove is a clockwise direction. Elevator landing door.

7. When the door body is attached to the landing, the rotation member rotates, and when viewed along the rotation axis, the center of gravity of the rotation member and the contact member can be positioned on the opposite side to the self-closing direction beyond the rotation axis.

7. The elevator landing door according to claim 6.

8. Multiple door shoes, a mounting fixture for mounting each of the door shoes to the door body; Further provided with The door stopper is attached to the door body together with at least one of the plurality of door shoes by the attachment tool.

7. The elevator landing door according to claim 6.

9. At least one of the door stoppers is attached together with the door shoe that is attached foremost in the self-closing direction among the plurality of door shoes when the door body is attached to the landing.

9. The elevator landing door according to claim 8.

10. When the door body is attached to the landing and viewed along the vertical direction, the rotation axis and the longitudinal direction of the threshold groove are perpendicular to each other.

7. The elevator landing door according to claim 6.

11. When the door body is attached to the landing, the distance from the rotation axis to the bottom surface of the threshold groove is smaller than the maximum rotation radius of the arc drawn by the locus of the contact member rotating around the rotation axis.

7. The elevator landing door according to claim 6.

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