JP2022076535A - Doorsill installation device and doorsill installation method - Google Patents

Abstract

A technique for adjusting the position of a threshold more easily than before is provided. A threshold installation device (10) includes a holding part (12) for holding a threshold (11) which is an entrance part of an elevator building, and a positioning mechanism (14) for positioning the threshold (11) by moving the holding part (12). [Selection drawing] Fig. 1

Description

The present invention relates to a sill installation device and a sill installation method.

In developed countries such as Japan, North America, and Europe, the decrease in construction workers due to the declining birthrate and aging population has become a problem. This problem is no exception in the elevator installation industry. Therefore, even if the number of workers decreases, it is required to improve the efficiency and labor saving of the construction work so that the number of construction works can be processed as before.

Elevator installation work includes a wide variety of work such as tower measurement, rail installation, doorway installation, tower equipment installation, and car assembly. Among these installation works, the entrance / exit installation is the work of closing the opening of the hoistway. Therefore, considering the safety of construction work, it is desirable to finish the entrance / exit installation promptly. However, the installation of the doorway is a work that is repeated for each floor of the building, and it is a work that handles long members and heavy objects, so it takes labor and time.

Elevator doorways are mainly composed of thresholds, three-sided frames and door pockets. The threshold is the part that forms the basis of the doorway. In the installation work of the threshold, each direction of 6 degrees of freedom, such as making the gap between the car that goes up and down the hoistway and the threshold of each floor constant, and installing the threshold horizontally to move the open / close door smoothly. It is required to adjust the position of the threshold accurately. The six degrees of freedom refer to the six degrees of freedom consisting of the X-axis direction, the Y-axis direction, the Z-axis direction, the pitch direction, the Roll direction, and the Yaw direction.

When adjusting the position of the sill with high accuracy in the installation work of the sill, it is conceivable to use a device or a jig that supports the efficiency of the adjustment work and the reduction of labor. Patent Document 1 describes a technique related to an elevator landing threshold adjusting jig and a threshold adjusting method. It is an object of the technique described in Patent Document 1 to provide an elevator landing threshold adjusting jig and a threshold adjusting method capable of adjusting the longitudinal direction and the elevation angle of the threshold of the elevator landing. To solve this problem, Patent Document 1 is provided with an adjustment jig fixed to the side surface of the threshold and having notches formed in each of the upper and lower adjustment pieces, and is centered hanging from the top of the elevator hoistway. The configuration of the elevator platform threshold adjustment jig, which is characterized by adjusting the horizontal direction of the threshold and the elevation angle with the riding scene by the positional relationship between the line and the notches of the upper and lower adjustment pieces, is described.

Japanese Unexamined Patent Publication No. 2014-28672

In the conventional threshold position adjustment work, the threshold is temporarily fixed on a bracket fixed in advance to the wall surface in the hoistway, and the piano wire or spirit level for centering is vertically lowered from the top of the hoistway as a reference. In addition, the worker hits the bracket or the sill with a hammer to adjust the posture and position of the sill. However, in this method, the moving direction, angle, and amount of movement of the threshold change depending on the temporary fixing condition of the threshold, the hitting position of the hammer, the hitting angle, the adjustment of the hitting force, and the like. For this reason, it is difficult for the worker to adjust the position of the threshold as intended, and skillful skills and know-how are required. In addition, an inexperienced worker has a problem that it takes a long time to work because the threshold is hit with a hammer many times before the position adjustment of the threshold is completed.

Regarding such a problem, the elevator landing threshold adjusting jig described in Patent Document 1 includes a piano wire which is a centering wire hanging from the top of the hoistway, and upper and lower adjusting pieces of the threshold adjusting jig, respectively. It is just an index board to make it easier to visually confirm the positional relationship with the notch. Therefore, even when the elevator landing threshold adjustment jig described in Patent Document 1 is used, the operator needs to hit the threshold with a hammer while visually checking the positional relationship between the centering wire and the notch. be. Therefore, skillful skill is required to adjust the position of the threshold.

An object of the present invention is to provide a technique capable of adjusting the position of a threshold more easily than before.

In order to solve the above problems, for example, the configuration described in the claims is adopted.
The present application includes a plurality of means for solving the above problems, one of which is a holding portion for holding a threshold, which is an entrance / exit component of an elevator building, and a holding portion for positioning the threshold by moving the holding portion. It is a threshold installation device equipped with a positioning mechanism.

According to the present invention, the position of the threshold can be adjusted more easily than before.
Issues, configurations and effects other than those described above will be clarified by the description of the following embodiments.

It is a perspective view which shows the structure of the sill installation apparatus which concerns on this 1st Embodiment. It is a side view which looked at the structure of the sill installation apparatus which concerns on this 1st Embodiment from the direction A of FIG. It is a top view which shows the arrangement state of the pair of index members constituting the relative position confirmation part in this 1st Embodiment. It is a perspective view which looked at the state which installed the sill installation device in the opening of an elevator from the hoistway side. It is a front view which looked at the state which installed the sill installation device in the opening of an elevator from the hall side of a building. It is a flowchart which shows the sill installation method using the sill installation apparatus which concerns on this 1st Embodiment. It is a top view which shows the positional relationship between a pair of index members and two piano wires before adjusting the horizontal plane position of a holding part. It is a top view which shows the positional relationship between a pair of index members and two piano wires after adjusting the horizontal plane position of a holding part. It is a perspective view which shows the state which the threshold is fixed to the wall surface of a building by using a plurality of brackets. It is a figure which looked at the threshold installation apparatus which concerns on this 2nd Embodiment from the hoistway side. It is a figure which looked at the threshold installation apparatus which concerns on this 3rd Embodiment from the top side of a hoistway. It is a figure which looked at the threshold installation apparatus which concerns on this 4th Embodiment from the Y-axis direction. It is a figure which looked at the threshold installation apparatus which concerns on this 4th Embodiment from the X-axis direction.

<First Embodiment>
FIG. 1 is a perspective view showing the configuration of the sill installation device according to the first embodiment, and FIG. 2 is a view of the configuration of the sill installation device according to the first embodiment from the direction A of FIG. It is a side view. In FIGS. 1 and 2, the X-axis direction indicates the elevator entrance / exit direction, the Y-axis direction indicates the width direction of the elevator entrance / exit, and the Z-axis direction indicates the height direction of the elevator. Further, the Roll direction indicates the rotation direction around the X axis, the Pitch direction indicates the rotation direction around the Y axis, and the Yaw direction indicates the rotation direction around the Z axis. The X-axis direction and the Y-axis direction correspond to the horizontal biaxial directions which are two axial directions parallel to the horizontal plane, and the Z-axis direction corresponds to the vertical direction which is a direction orthogonal to the horizontal plane. The direction of entry and exit of the elevator corresponds to the depth direction when the hoistway is viewed from the elevator landing, that is, the direction in which people enter and exit, and the width direction of the entrance and exit of the elevator corresponds to the direction in which the door of the elevator opens and closes. ..

The sill installation device 10 is a device used when installing the sill 11 at the entrance / exit portion of an elevator. As shown in FIGS. 1 and 2, the threshold installation device 10 mainly includes a holding portion 12 for holding the threshold 11 and a positioning mechanism 14 for positioning the threshold 11 held by the holding portion 12. .. Further, the threshold installation device 10 includes a posture measuring unit 16 that measures the posture of the threshold 11 held by the holding unit 12, a measurement reference (described later) in the hoistway of the elevator, and the threshold 11 held by the holding unit 12. A relative position confirmation unit 18 for confirming the relative position with and a height detection unit 20 for detecting that the threshold 11 held by the holding unit 12 is arranged at a predetermined height from the floor surface 19 of the building, and holding. A base 22 for supporting the portion 12 and the positioning mechanism 14 is provided.

The positioning mechanism 14 is arranged on the lower surface side of the arm 24. The arm 24 has high rigidity and is assembled in a frame shape. A lid 23 is fixed to the upper surface of the arm 24. The lid 23 is composed of a flat plate-shaped member. A device posture measuring unit 25 is attached to the upper surface of the lid 23. The device posture measuring unit 25 measures the posture of the threshold installation device 10 with respect to a horizontal plane parallel to the X-axis direction and the Y-axis direction. The posture of the sill installation device 10 with respect to the horizontal plane means the inclination of the sill installation device 10 with respect to the horizontal plane. The state in which the posture of the sill installation device 10 is parallel to the horizontal plane is the state in which the inclination of the sill installation device 10 becomes zero.

(Holding unit 12)
The holding portion 12 is a portion that sandwiches and holds the threshold 11 in the vertical direction. Two holding portions 12 are arranged with a distance in the Y-axis direction. Each holding portion 12 has the following common configuration. As shown in FIG. 2, the holding portion 12 includes a first clamp member 26, a second clamp member 27, a fastener 28, and a knob 29. The first clamp member 26 has a storage space 30 that can accommodate the threshold 11. The first clamp member 26 is formed in a substantially inverted U shape when viewed from the direction A in FIG. 1. The second clamp member 27 is rotatably attached to the first clamp member 26 about the fulcrum portion 31. The accommodation space 30 of the first clamp member 26 is closed when the second clamp member 27 is rotated in one direction (clockwise in FIG. 2) around the fulcrum portion 31, and is closed in the other direction (counterclockwise in FIG. 2). It is released when it is rotated in the clockwise direction).

In the following description, the posture of the second clamp member 27 in a state where the accommodation space 30 of the first clamp member 26 is closed by the second clamp member 27 is referred to as a closed state, and the accommodation of the first clamp member 26 is described. The posture of the second clamp member 27 in a state where the space 30 is opened by the second clamp member 27 is referred to as an open state. The posture of the second clamp member 27 shown in FIG. 2 is in the closed state.

The fastener 28 is a metal fitting for holding the second clamp member 27 in the closed state and releasing the closed state. When the second clamp member 27 is closed, the height dimension (dimension in the Z-axis direction) of the accommodation space 30 of the first clamp member 26 is slightly larger than the height dimension of the threshold 11. The height dimension of the threshold 11 is fixed by the standard. On the other hand, the width dimension (dimension in the X-axis direction) of the threshold 11 is not fixed to a fixed dimension and may be changed within a predetermined range. In the present embodiment, the width dimension (dimension in the X-axis direction) of the accommodation space 30 in the holding portion 12 is set to be equal to or larger than the maximum width dimension of the threshold 11 handled by the threshold installation device 10. This makes it possible to hold the thresholds 11 having different width dimensions by the same holding portion 12.

The knob 29 is attached to the second clamp member 27 by meshing the screws with each other. The knob 29 accommodates the threshold 11 in the accommodation space 30 of the first clamp member 26 to close the second clamp member 27, and in this state, the knob 29 is rotated in the first direction to obtain a first position. A force is generated to press the threshold 11 against the clamp member 26 of the above. The pressing force generated by the knob 29 causes the threshold 11 to be held in a fixed state by the holding portion 12. Further, by holding the threshold 11 by the two holding portions 12 paired on the left and right, the pair of holding portions 12 and the threshold 11 can be moved integrally.

In order to release the pressing force described above, the knob 29 may be rotated in the second direction opposite to the first direction. Further, when the threshold 11 is held by the pair of holding portions 12, a mark such as a line or a dot as a mark is attached in advance to a predetermined portion of the threshold 11 (for example, the upper surface of the threshold 11), and the position of this mark. The threshold 11 may be held based on the above. As a result, the holding portion 12 can hold the threshold 11 so that the relative positional relationship between the holding portion 12 and the threshold 11 is always constant. Further, the holding portion 12 may hold the threshold 11 by any method as long as the threshold 11 can be held horizontally. For example, when the threshold 11 is a magnetic material, the holding portion 12 may hold the threshold 11 by a magnetic force.

(Positioning mechanism 14)
The positioning mechanism 14 is a mechanism for positioning the threshold 11 by moving the threshold 11 held by the holding portion 12 integrally with the holding portion 12. The positioning mechanism 14 includes a plurality of adjusting portions for adjusting the position of the threshold 11 held by the holding portion 12 as described above. The plurality of adjusting units have different directions for adjusting the position of the threshold 11. In the present embodiment, as an example, the positioning mechanism 14 is configured to include a first adjusting unit 35 and a second adjusting unit 36.

The first adjusting unit 35 can adjust the position of the threshold 11 held by the holding unit 12 in the X-axis direction, the Y-axis direction, and the Z-axis direction. Specifically, the first adjusting unit 35 includes an X-axis stage in which the position of the threshold 11 can be adjusted in the X-axis direction, a Y-axis stage in which the position of the threshold 11 can be adjusted in the Y-axis direction, and a threshold 11. It is equipped with a Z-axis stage whose position can be adjusted in the Z-axis direction. Further, the first adjusting unit 35 includes three rotary knobs for individually (independently) adjusting the position of the threshold 11 in each of the X-axis direction, the Y-axis direction, and the Z-axis direction.

The second adjusting unit 36 can adjust the position of the threshold 11 held by the holding unit 12 in the roll direction, the pitch direction, and the yaw direction. Specifically, the second adjusting unit 36 has a roll stage in which the position of the threshold 11 can be adjusted in the roll direction, a pitch stage in which the position of the threshold 11 can be adjusted in the pitch direction, and a position of the threshold 11 in the yaw direction. It is equipped with an adjustable yaw stage. Further, the second adjusting unit 36 is provided with three rotary knobs for individually adjusting the position of the threshold 11 in each of the roll direction, the pitch direction and the yaw direction. As described above, the roll direction indicates the direction of rotation about the X axis, the pitch direction indicates the direction of rotation around the Y axis, and the yaw direction indicates the direction of rotation around the Z axis. Then, when the position of the threshold 11 is adjusted in any of the roll direction, the pitch direction, and the yaw direction, the posture of the threshold 11 changes. Therefore, the second adjusting unit 36 can be rephrased as a portion for adjusting the posture of the threshold 11.

The first adjusting unit 35 is mounted on the base 22 via a pedestal 37 (see FIG. 2). The pedestal 37 is a metal member. The pedestal 37 is fixed to the upper surface of the base 22. As a means for fixing the members including the pedestal 37 and the base 22, screwing can be considered, but fixing means other than screwing may be adopted. The first adjusting portion 35 is fixed to the upper surface of the pedestal 37. Of the three stages included in the first adjusting unit 35, the stage arranged at the uppermost portion is fixed to the lower surface of the arm 24.

The second adjusting portion 36 is arranged on the side opposite to the first adjusting portion 35 in the longitudinal direction (X-axis direction) of the arm 24. The second adjusting portion 36 is supported by the arm 24 by using the upper plate 38, the lower plate 39, and the plurality of connecting studs 40. The upper plate 38 is formed in a rectangular shape in a plan view. The upper plate 38 is fixed to the lower surface of the arm 24. The lower plate 39 is formed in a rectangular shape in a plan view like the upper plate 38. The plurality of connecting studs 40 connect the upper plate 38 and the lower plate 39. One connecting stud 40 is arranged at each of the four corners of the upper plate 38 and the lower plate 39. The second adjusting portion 36 is arranged between the upper plate 38 and the lower plate 39. Further, the second adjusting portion 36 is fixed to the upper surface of the lower plate 39. Further, the second adjusting portion 36 is arranged closer to the holding portion 12 than the first adjusting portion 35 in the horizontal plane parallel to the X-axis direction and the Y-axis direction. Specifically, the second adjusting unit 36 is arranged directly above the threshold 11 held by the holding unit 12, and the first adjusting unit 35 is located at a position deviated from the position directly above the threshold 11 in the X-axis direction. It is arranged.

Of the three stages included in the second adjusting unit 36, the support plate 41 is fixed to the stage arranged at the uppermost portion. The support plate 41 is a long plate that is long in the Y-axis direction. The support plate 41 is provided with a plurality of through holes 42 (see FIG. 1) corresponding to the plurality of connecting studs 40 described above. The diameter of the through hole 42 is set to be larger than the diameter of the connecting stud 40, and the difference in diameter prevents positional interference between the connecting stud 40 and the support plate 41.

A connecting plate 43 is fixed to the lower surface of the support plate 41. The connecting plate 43 is a plate that connects the support plate 41 and the holding portion 12. The connecting plate 43 is provided in a one-to-one relationship with the holding portion 12. The lower surface of the connecting plate 43 is fixed to the upper surface of the first clamp member 26 included in the holding portion 12. The connecting plate 43 is arranged at the center of the upper surface of the first clamp member 26 and stands vertically from the upper surface of the first clamp member 26. When the threshold installation device 10 is viewed from the X-axis direction, between the pair of left and right connecting plates 43, the above-mentioned second adjusting portion 36 and a plurality of (four in the present embodiment) connected to each other are connected. The stud 40 and the stud 40 are arranged.

A reinforcing member 44 is fixed to the upper surface of the support plate 41. The reinforcing member 44 is a member that suppresses bending of the support plate 41 by reinforcing the support plate 41. The reinforcing member 44 is an elongated member long in the Y-axis direction, and is made of, for example, aluminum or an aluminum alloy. Reinforcing members 44 are arranged at both ends of the support plate 41 in the lateral direction (X-axis direction). Further, the reinforcing member 44 is arranged in parallel with the longitudinal direction (Y-axis direction) of the support plate 41. The reinforcing member 44 does not necessarily have to be provided when the support plate 41 has sufficiently high rigidity. That is, the reinforcing member 44 may be provided as needed.

In the positioning mechanism 14 having the above configuration, when any one of the three stages included in the first adjusting unit 35 is moved, the arm 24 moves in the same direction as this stage, and the second adjusting unit The 36 and the holding portion 12 move integrally with the arm 24. As a result, the threshold 11 held by the holding portion 12 can be linearly moved in the moving direction of the stage in the first adjusting portion 35, that is, in each of the X-axis direction, the Y-axis direction, and the Z-axis direction. Therefore, the position of the threshold 11 can be adjusted independently in each of the X-axis direction, the Y-axis direction, and the Z-axis direction. Further, when any of the three stages included in the second adjusting unit 36 is moved, the support plate 41 moves in the same direction as this stage, and the holding unit 12 is integrated with the support plate 41. Moving. As a result, the threshold 11 held by the holding portion 12 can be rotationally moved in the moving direction of the stage in the second adjusting portion 36, that is, in each of the roll direction, the pitch direction, and the yaw direction. Therefore, the position of the threshold 11 can be adjusted independently in each of the roll direction, the pitch direction, and the yaw direction.

After adjusting the position of the threshold 11 by the first adjusting unit 35 and the second adjusting unit 36, the first adjusting unit 35 and the second adjusting unit 36 are respectively so that the position of the threshold 11 does not shift. It is preferable to have a locking mechanism that prevents the stage from moving in the direction.

(Posture measurement unit 16)
The posture measuring unit 16 is fixed to the upper surface of the support plate 41 by using a fixture 45. The posture measuring unit 16 is arranged at one end of the support plate 41 in the longitudinal direction. The posture measuring unit 16 measures the posture of the threshold 11 with respect to the horizontal plane parallel to the X-axis direction and the Y-axis direction. The posture of the threshold 11 with respect to the horizontal plane means the inclination of the threshold 11 with respect to the horizontal plane. The state in which the posture of the threshold 11 is parallel to the horizontal plane is the state in which the inclination of the threshold 11 becomes zero. In the configuration of the sill installation device 10, the positions of each part of the sill installation device 10 are adjusted in advance so that the posture of the sill 11 held by the holding portion 12 and the posture of the support plate 41 are the same as each other. Has been done.

(Relative position confirmation unit 18)
The relative position confirmation unit 18 is composed of a pair of index members 46. The pair of index members 46 are arranged at predetermined intervals in the Y-axis direction. Of the pair of index members 46, one index member 46 is fixed to the support plate 41 by screwing, and the other index member 46 is fixed to the support plate 41 via the plate 48. As shown in FIG. 3, each index member 46 is composed of a plate having an L-shaped notch 47 in a plan view. In the pair of index members 46, the bent corners 49 of the notched portions 47 are arranged on a virtual straight line 50 parallel to the longitudinal direction of the support plate 41. Further, the distance Lm between the two bending corner portions 49 located on the virtual straight line 50 is, as shown in FIGS. 4 and 5, the two piano wires 52 suspended vertically from the top of the hoistway 51 of the elevator. It is set to be the same as the interval Lp (see FIG. 5). The two piano wires 52 are reference lines used for centering the threshold 11, and are also called centering wires. The two piano wires 52 correspond to the measurement reference in the hoistway 51 of the elevator.
By the way, FIG. 4 is a perspective view of the state where the sill installation device is installed at the opening of the elevator as seen from the hoistway side, and FIG. 5 is a state where the sill installation device is installed at the opening of the elevator in the building. It is a front view seen from the hall side.

Further, the relative position confirmation unit 18 is not limited to the pair of index members 46, and may be configured by using a sensor that detects the position of the piano wire 52. The position of the piano wire 52 can be detected by, for example, a transmissive optical sensor.

(Height detection unit 20)
The height detection unit 20 is fixed to the support plate 41 by using the L-shaped plate 55. The height detecting unit 20 is arranged upright so as to be oriented orthogonal to the main surface (upper surface and lower surface) of the support plate 41. The height detecting unit 20 has a sensing unit (not shown). The sensing unit is a portion that senses the horizontal laser beam emitted by the laser marking device 60. The laser marking device 60 has a marking device main body 61 and a tripod 62 that supports the marking device main body 61. The marking device main body 61 emits a horizontal laser beam which is a laser beam parallel to a horizontal plane. The height of the horizontal laser beam from the marking device main body 61 can be adjusted by changing the length of the tripod 62.

(Base 22)
The base 22 is composed of a flat plate-shaped member. A plurality of legs 56 (see FIG. 2) are attached to the lower surface of the base 22. The base 22 is installed on the floor surface 19 by a plurality of legs 56. The number of legs 56 is at least three so as to stably support the load applied to the base 22. In the present embodiment, as an example, the base 22 is formed into a rectangular shape in a plan view, and three legs 56 are attached to the base 22. The length of each of the plurality of legs 56 can be adjusted. The height from the floor surface 19 to the base 22 can be changed by uniformly adjusting the lengths of the plurality of legs 56. Further, the inclination of the base 22 with respect to the horizontal plane can be changed by individually adjusting the lengths of the plurality of legs 56.

A counterweight 57 is mounted on the upper surface of the base 22. The counterweight 57 is removable from the base 22. The counterweight 57 is a weight that applies a load to the base 22 so that the entire threshold installation device 10 does not fall forward due to the load applied to the base 22 via the first adjusting portion 35 and the pedestal 37. That is, the counterweight 57 corresponds to the front fall prevention unit. The counterweight 57 is arranged on the side farther from the holding portion 12 than the first adjusting portion 35 and the pedestal 37 in the X-axis direction. The counterweight 57 may not be necessary depending on the balance of the load applied to the base 22. That is, the counterweight 57 may be provided as needed.

Further, a misalignment suppressing portion 58 is connected to the base 22. The misalignment suppressing portion 58 suppresses the misalignment of the base 22 installed on the floor surface 19 of the building via the plurality of leg portions 56 described above. The misalignment suppressing portion 58 is composed of a long rod member long in the Y-axis direction. A telescopic rod portion 59a is provided on one end side of the misalignment suppressing portion 58 in the length direction. The telescopic rod portion 59a is a portion that changes the length of the entire misalignment suppressing portion 58 by expanding and contracting in the length direction of the misalignment suppressing portion 58. Further, pad portions 59b are provided at both ends of the misalignment suppressing portion 58 in the length direction. The pad portion 59b is pressed against the side surface of the opening with a predetermined pressure when the threshold installation device 10 is installed on the floor surface 19 of the building.

(How to install the threshold)
Subsequently, the sill installation method using the sill installation device according to the first embodiment will be described with reference to the flowchart of FIG.
First, as shown in FIG. 5, the operator draws a finishing line 66 down by a predetermined dimension from the pre-inked escape ink 65 (step S1). The escape ink 65 is a line drawn horizontally on the wall surface 68 beside the opening 67 of the elevator, and is often drawn about 1 m above the surface that actually becomes the floor of the elevator. In that case, the worker draws the finishing line 66 horizontally 1 m below the escape ink 65.

Next, as shown in FIG. 5, the operator draws a target laser beam 69 on the wall surface 68 beside the opening 67 of the elevator (step S2). Assuming that the height dimension from the upper surface of the threshold 11 held by the holding portion 12 to the sensing portion of the height detecting portion 20 in the threshold installation device 10 is H mm, the target laser beam 69 is H mm more than the finishing line 66. Only pulled up.

Next, the operator installs the laser marking device 60 on the floor surface 19 of the building, and adjusts the height of the horizontal laser beam 70 (see FIG. 5) emitted by the laser marking device 60 (step S3). To adjust the height of the horizontal laser beam 70, the horizontal laser beam 70 is emitted from the laser marking device 60 installed on the floor surface 19 toward the wall surface 68, and the height of the horizontal laser beam 70 is the target laser beam 69. This is done by changing the length of the tripod 62 of the laser marking device 60 to match the height.

Next, the worker installs the threshold installation device 10 near the opening 67 of the elevator (step S4).

Next, the worker roughly adjusts the height and posture of the threshold installation device 10 (step S5). This rough adjustment is performed by changing the lengths of the plurality of legs 56 attached to the base 22.

Next, the operator fixes the misalignment suppressing portion 58 to the opening 67 of the elevator (step S6). When fixing the misalignment suppressing portion 58, the pair of left and right pad portions 59b are pressed against the side surface of the opening 67 by utilizing the elasticity of the telescopic rod portion 59a. As a result, the misalignment suppressing portion 58 is fixed so that the misalignment suppressing portion 58 is stretched between the left and right side surfaces of the opening 67. By fixing the misalignment suppressing portion 58 in this way, it is possible to suppress the misalignment of the base 22 and, by extension, the misalignment of the entire threshold installation device 10.

Next, the operator mounts the counterweight 57 on the base 22 (step S7).

Next, the worker causes the holding portion 12 to hold the threshold 11 (step S8). In this step, the operator performs relative alignment between the threshold 11 and the holding portion 12 based on the position of the mark attached to the threshold 11.

Next, the operator adjusts the posture of the holding portion 12 (step S9). In this step, the operator appropriately moves the pitch stage and the roll stage of the second adjusting unit 36 while visually checking the posture measuring unit 16 so that the threshold 11 becomes horizontal. Adjust the posture.

Next, the operator adjusts the height of the holding portion 12 (step S10). In this step, the operator appropriately moves the Z-axis stage of the first adjusting unit 35 so that the sensing unit of the height detecting unit 20 senses the horizontal laser light 70 emitted from the laser marking device 60.

Next, the operator adjusts the horizontal plane position of the holding portion 12 (step S11). In this step, the operator visually confirms the relative positions of the two piano wires 52 and the pair of index members 46 described above, and the X-axis stage and the Y-axis stage of the first adjusting unit 35 and the first. By appropriately moving the yaw stage of the adjusting portion 36 of 2, the horizontal plane position of the holding portion 12 is adjusted so that the piano wire 52 is located at the bending corner portion 49 of each index member 46. FIG. 7 is a plan view showing the positional relationship between the pair of index members and the two piano lines before adjusting the horizontal plane position of the holding portion, and FIG. 8 is a plan view after adjusting the horizontal plane position of the holding portion. It is a top view which shows the positional relationship between a pair of index members and two piano lines. As shown in FIG. 7, before adjusting the horizontal plane position of the holding portion 12, the positions of the pair of index members 46 and the positions of the two piano wires 52 are deviated from each other. On the other hand, after adjusting the horizontal plane position of the holding portion 12, the piano wire 52 corresponding to each of the bending corner portions 49 of the pair of index members 46 is located.
This completes the positioning of the threshold 11.

Next, as shown in FIG. 9, the operator attaches a plurality of brackets 73 to the wall surface 71 of the building facing the hoistway (step S12). The bracket 73 is a member for fixing the threshold 11. In the present embodiment, as an example, the threshold 11 is fixed by using three brackets 73. In this step, the operator adjusts the mounting position of the bracket 73 according to the position of the threshold 11 positioned as described above. The bracket 73 is fixed to the wall surface 71 by anchor bolts or the like (not shown).

Next, the operator fixes the threshold 11 and the plurality of brackets 73 (step S13). At this stage, the fixing of the threshold 11 is completed.

Next, the operator releases the holding portion 12 (step S14). In this step, the operator opens the accommodation space 30 of the first clamp member 26 by removing the fastener 28 of the holding portion 12 and rotating the second clamp member 27 around the fulcrum portion 31.

Next, the operator removes the sill installation device 10 from the sill 11 while being careful not to hit the first clamp member 26 of the holding portion 12 against the sill 11 (step S15).
This completes the installation work of the threshold 11.

The threshold installation device 10 according to the first embodiment includes a holding portion 12 for holding the threshold 11, and a positioning mechanism 14 for positioning the threshold 11 by moving the holding portion 12. Therefore, the worker who performs the sill installation work can adjust the position of the sill 11 without hitting the sill 11 with a hammer. As a result, the position of the threshold 11 can be adjusted more easily than before. As a result, the time required for the threshold installation work can be shortened.

Further, the positioning mechanism 14 is configured to position the threshold 11 by moving the holding portion 12 in each of the X-axis direction, the Y-axis direction, the Z-axis direction, the roll direction, the pitch direction, and the yaw direction. Therefore, the position of the threshold 11 can be adjusted accurately in each direction of 6 degrees of freedom. Further, since the position of the threshold 11 held by the holding portion 12 can be adjusted in one direction or two directions, interference of position adjustment in different directions can be suppressed. The positioning mechanism 14 may be configured to position the threshold 11 by moving the holding portion 12 in at least one direction with respect to the direction of six degrees of freedom.

Further, the positioning mechanism 14 is configured to include a first adjusting unit 35 and a second adjusting unit 36 that adjust the position of the threshold 11 held by the holding unit 12 in different directions. Therefore, the position of the threshold 11 held by the holding unit 12 is set for each of the moving directions of the three stages of the first adjusting unit 35 and for each of the moving directions of the three stages of the second adjusting unit 36. It is possible to adjust.

Further, the first adjusting unit 35 can adjust the position of the threshold 11 held by the holding unit 12 in the X-axis direction, the Y-axis direction, and the Z-axis direction, and the second adjusting unit 36 has the threshold. The position of 11 can be adjusted in the roll direction, the pitch direction and the yaw direction. This makes it possible to adjust the position of the threshold 11 in the X-axis direction, the Y-axis direction, and the Z-axis direction, and to adjust the position of the threshold 11 in the roll direction, the pitch direction, and the yaw direction without interfering with each other. ..

Further, the second adjusting portion 36 is arranged closer to the holding portion 12 than the first adjusting portion 35. As a result, when the three stages of the second adjusting unit 36 are moved to adjust the position of the threshold 11, the position (posture) of the threshold 11 is set near the movement center axis (rotation axis) of each stage. Change. Therefore, the position (posture) of the threshold 11 can be easily adjusted by the second adjusting portion 36 as compared with the case where the second adjusting portion 36 is arranged at a position farther from the holding portion 12 than the first adjusting portion 35. It can be carried out.

Further, the threshold installation device 10 is configured to include a posture measuring unit 16 for measuring the posture of the threshold 11 held by the holding unit 12. As a result, the positioning work of the sill 11 can be performed while the posture measuring unit 16 confirms the posture of the sill 11.

Further, the sill installation device 10 is configured to include a relative position confirmation unit 18 for confirming the relative position between the piano wire 52 hanging from the top of the elevator hoistway and the sill 11 held by the holding unit 12. ing. As a result, the threshold 11 can be easily centered based on the position of the piano wire 52.

Further, the threshold installation device 10 is configured to include a misalignment suppressing unit 58 that suppresses the misalignment of the base 22. This makes it possible to prevent the base 22 from being inadvertently displaced during the positioning work of the threshold 11. Further, the threshold installation device 10 can be installed without fixing anchors, screws, or the like to the building or other structures. Therefore, damage to the building or other structures can be avoided, and the time required for installing and removing the threshold installation device 10 can be shortened.

Further, the base 22 is configured to be installed on the floor surface 19 of the building by a plurality of legs 56 whose lengths can be adjusted. As a result, the base 22 can be installed horizontally even on the floor surface 19 having irregularities or steps. Further, while the posture of the entire threshold installation device 10 is roughly adjusted by the plurality of legs 56 whose lengths can be adjusted, the threshold 11 is provided by the first adjusting portion 35 and the second adjusting portion 36 provided in the positioning mechanism 14. By finely adjusting the posture, it is possible to secure a wide allowable range in which the position of the threshold 11 can be adjusted.

Further, the threshold installation device 10 is configured to include a height detecting unit 20 for detecting that the threshold 11 held by the holding unit 12 is arranged at a predetermined height from the floor surface 19 of the building. .. As a result, the height of the threshold 11 can be easily adjusted.

Further, in the sill installation method according to the first embodiment, after the sill 11 is positioned by using the sill installation device 10, the sill 11 is fixed to the wall surface 71 of the building by using the bracket 73. As a result, the threshold 11 can be positioned without causing positional interference between the threshold 11 and the bracket 73. Further, the threshold 11 can be fixed at a desired position without hitting the threshold 11 or the bracket 73 with a hammer.

<Second Embodiment>
FIG. 10 is a view of the threshold installation device according to the second embodiment as viewed from the hoistway side.
The threshold installation device 10A according to the second embodiment is compared with the threshold installation device 10 according to the first embodiment, and the measurement reference in the hoistway 51 of the elevator and the threshold 11 held by the holding portion 12 The configuration of the relative position confirmation unit 18A for confirming the relative position with the above is different. The relative position confirmation unit 18A is composed of a pair of laser position measurement units 75. The pair of laser position measuring units 75 are arranged at predetermined intervals in the Y-axis direction when the threshold installation device 10A is installed in the opening 67 of the elevator. The pair of laser position measuring units 75 are attached to the threshold installation device 10A in place of the pair of index members 46 described above.

Further, in the second embodiment, instead of the two piano wires 52 described above, a pair of laser vertical devices 76 are installed at the bottom of the hoistway 51 of the elevator, and vertical laser light is emitted from each laser vertical device 76. 77 is emitted. As a result, two vertical laser beams 77 are emitted from the bottom of the hoistway 51 toward the top. The two vertical laser beams 77 are laser beams emitted so as to have the same positional relationship as the above-mentioned two piano wires 52, and correspond to the measurement reference in the hoistway 51 of the elevator. That is, the vertical laser beam 77 is treated as a reference core equivalent to the piano wire 52.

When the threshold installation work is performed using the threshold installation device 10A according to the second embodiment, the horizontal plane position of the holding portion 12 is adjusted as follows in step S11 (see FIG. 6) described above.
First, the operator sets the X-axis stage of the first adjusting unit 35 and the X-axis stage of the first adjusting unit 35 so that the pair of laser position measuring units 75 simultaneously receive the two vertical laser beams 77 emitted from the pair of laser vertical devices 76. The Y-axis stage and the yaw stage of the second adjusting unit 36 are appropriately moved.
Next, the operator sets the X-axis stage and the Y-axis stage of the first adjusting unit 35 so that the light receiving position of the vertical laser light 77 in each laser position measuring unit 75 becomes a predetermined position. The yaw stage of the adjusting unit 36 of 2 is appropriately moved.

According to the second embodiment, the following effects can be obtained.
When the piano wire 52 is used as the measurement reference in the hoistway 51 of the elevator, the piano wire 52 may hinder the introduction of the equipment into the hoistway 51. On the other hand, if the vertical laser beam 77 is used instead of the piano wire 52 as the measurement reference in the hoistway 51 of the elevator, the obstacle at the time of carrying in the equipment can be removed. Further, since the piano wire 52 is shaken by the wind blown into the hoistway 51, it may not be used as a stable reference core. On the other hand, since the vertical laser beam 77 is not affected by the wind, it can always be used as a stable reference core.

<Third Embodiment>
FIG. 11 is a view of the threshold installation device according to the third embodiment as viewed from the top side of the hoistway.
The threshold installation device 10B according to the third embodiment is compared with the threshold installation device 10 according to the first embodiment, and the measurement reference in the hoistway 51 of the elevator and the threshold 11 held by the holding portion 12 The configuration of the relative position confirmation unit 18B for confirming the relative position with the above is different. The relative position confirmation unit 18B is composed of a pair of laser distance measurement units 80. The laser distance measuring unit 80 measures the distance from the laser distance measuring unit 80 to the object by emitting a laser beam 81 for distance measurement toward the object and receiving the laser light reflected from the object. .. The distance, which is the measurement result of the laser distance measuring unit 80, is displayed numerically on the display unit (not shown) of the laser distance measuring unit 80.

When the threshold installation device 10B is installed in the opening 67 of the elevator, the pair of laser distance measuring units 80 emits the laser light 81 for distance measurement toward the pair (two) guide rails 82. The pair of laser distance measuring units 80 are attached to the threshold installation device 10A in place of the pair of index members 46 described above. On the other hand, the pair of guide rails 82 are rails that guide the raising and lowering of the car in the hoistway 51. The pair of guide rails 82 are fixed to the wall surface of the hoistway 51, a steel frame, or the like by using the corresponding rail brackets 83. In the third embodiment, a pair of guide rails 82 are used as a measurement reference in the hoistway 51 of the elevator.

When the threshold installation work is performed using the threshold installation device 10B according to the third embodiment, the horizontal plane position of the holding portion 12 is adjusted as follows in step S11 (see FIG. 6) described above.
First, the operator can use the X-axis stage and Y of the first adjusting unit 35 so that the two laser beams 81 emitted from the pair of laser distance measuring units 80 are simultaneously irradiated on the pair of guide rails 82. The shaft stage and the yaw stage of the second adjusting unit 36 are appropriately moved.
Next, the operator can use the distance from one laser distance measuring unit 80 to the guide rail 82 (hereinafter referred to as "first distance") and the distance from the other laser distance measuring unit 80 to the guide rail 82 (hereinafter referred to as "first distance"). Hereinafter, while visually confirming the “second distance”), the X-axis stage and the Y-axis stage of the first adjusting unit 35 and the yaw stage of the second adjusting unit 36 are appropriately moved. Therefore, the position of the threshold 11 is adjusted so that the first distance and the second distance are the same distance from each other.

In the third embodiment, since the piano wire 52 is not used as the measurement reference in the hoistway 51 of the elevator, the same effect as that of the second embodiment can be obtained. The pair of laser distance measuring units 80 may be attached to the pair of guide rails 82 instead of the threshold installation device 10B. In that case, the laser light 81 emitted by the laser distance measuring unit 80 attached to the pair of guide rails 82 may be applied to the holding unit 12 or the threshold 11 held by the holding unit 12.

<Fourth Embodiment>
FIG. 12 is a view of the sill installation device according to the fourth embodiment as viewed from the Y-axis direction, and FIG. 13 is a view of the sill installation device according to the fourth embodiment as viewed from the X-axis direction. be.
Compared with the threshold installation device 10 according to the first embodiment, the threshold installation device 10C according to the fourth embodiment does not have a counterweight 57 for preventing forward tilting on the base 22, and the counterweight The difference is that the front fall prevention unit 90 is provided instead of the 57.

The front fall prevention portion 90 is fixed to the base 22, a pair of columns 91 standing up from the base 22, a horizontal rod 92 supported by the pair of columns 91, and one end and the other end of the horizontal rod 92 in the length direction. It is provided with two bottle jacks 93 provided in the above and a pad 94 attached to the bottom surface of each bottle jack 93.

When the sill installation device 10C according to the fourth embodiment is used for the sill installation work, the left and right pads 94 are brought into contact with the wall surface 71 when the sill installation device 10C is installed in step S4 described above. .. As a result, the threshold installation device 10C is in a state of leaning against the wall surface 71 via the front fall prevention portion 90. Therefore, the weight of the sill installation device 10C can be received by the wall surface 71, and the entire sill installation device 10C can be prevented from tipping forward. Therefore, the step of step S7 (see FIG. 6) described above becomes unnecessary. Further, the front fall prevention unit 90 is configured to include a pair of bottle jacks 93. The bottle jack 93 can adjust the distance from the wall surface 71 to the horizontal bar 92 by expanding and contracting in the X-axis direction with the pad 94 pressed against the wall surface 71. Therefore, by changing the expansion / contraction amount of the pair of bottle jacks 93, the inclination angle of the threshold installation device 10C in the front-rear direction (X-axis direction) can be adjusted to a desired angle even if the wall surface 71 has irregularities. Can be done.

<Modification examples, etc.>
The present invention is not limited to the above-described embodiment, and includes various modifications. For example, in the above-described embodiment, the contents of the present invention are described in detail so as to be easy to understand, but the present invention is not necessarily limited to those including all the configurations described in the above-described embodiment. Further, it is possible to replace a part of the configuration of one embodiment with the configuration of another embodiment. It is also possible to add the configuration of another embodiment to the configuration of one embodiment. It is also possible to delete some of the configurations of each embodiment, add other configurations, or replace them with other configurations.

For example, in the above embodiment, the first adjusting unit 35 and the second adjusting unit 36 each include a rotary knob that is rotated by the operator's hand, and each stage moves according to the rotation of the rotary knob. However, the configuration is not limited to this, and each stage may be configured to move by using a motor or the like as a drive source. Further, as described above, the first adjustment unit 35 and the second adjustment unit 36 are electrified, and the first adjustment unit is based on the information obtained by the posture measurement unit 16, the relative position confirmation unit 18, and the height detection unit 20. A configuration may be adopted in which the threshold 11 is positioned by automatically controlling the drive of the adjusting unit 35 and the second adjusting unit 36.

10, 10A, 10B, 10C ... Threshold installation device, 11 ... sill, 12 ... holding part, 14 ... positioning mechanism, 16 ... attitude measurement unit, 18, 18A, 18B ... relative position confirmation unit, 19 ... floor surface, 20 ... height detection unit, 22 ... base, 35 ... first adjustment unit, 36 ... second adjustment unit, 52 ... piano line (measurement reference), 56 ... leg, 58 ... misalignment suppression unit, 57 ... counter Weight (front fall prevention part), 71 ... wall surface, 73 ... bracket, 76 ... laser vertical device, 77 ... vertical laser light (measurement standard), 82 ... guide rail (measurement standard), 90 ... front fall prevention part

Claims (10)

A holding part that holds the threshold, which is an entrance / exit part of the elevator building,
A positioning mechanism that positions the threshold by moving the holding portion,
A sill installation device equipped with. The threshold installation device according to claim 1, wherein the positioning mechanism includes a plurality of adjusting portions that adjust the position of the threshold held by the holding portion in different directions. The plurality of adjusting portions include a first adjusting portion that can adjust the position of the threshold held by the holding portion in the X-axis direction, the Y-axis direction, and the Z-axis direction, and the position of the threshold in the roll direction and pitch. The threshold installation device according to claim 2, which has a second adjusting unit that can be adjusted in the direction and the yaw direction. The threshold installation device according to claim 3, wherein the second adjusting portion is arranged closer to the holding portion than the first adjusting portion. It is equipped with a relative position confirmation unit that confirms the relative position between the measurement reference in the hoistway of the elevator and the threshold held by the holding unit.
The measurement reference is two piano wires vertically lowered from the top of the hoistway, two vertical laser beams emitted from a laser vertical device installed at the bottom of the hoistway, or the inside of the hoistway. The threshold installation device according to claim 1, which is two guide rails attached to the above. A base that supports the holding portion and the positioning mechanism and is installed on the floor of the building.
The misalignment suppressing unit that suppresses the misalignment of the base,
The threshold installation device according to claim 1. The sill installation device according to claim 6, further comprising a front fall prevention unit that is attached to the base and prevents the entire sill installation device from falling forward. The threshold installation device according to claim 6, wherein the base is installed on the floor surface of the building by a plurality of legs whose lengths can be adjusted. A posture measuring unit that measures the posture of the threshold held by the holding unit,
A height detecting unit that detects that the threshold held by the holding unit is arranged at a predetermined height from the floor surface of the building, and a height detecting unit.
The threshold installation device according to claim 1. The sill installation method using the sill installation device according to claim 1.
A method of installing a sill, in which the sill is positioned using the sill installation device and then the sill is fixed to the wall surface of the building using a bracket.

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