Mounting fixture and mounting method

Abstract

The present invention provides a mounting jig and mounting method that allow a detector installed on an escalator to be easily and accurately installed without the need for human intervention. [Solution] The mounting jig is for mounting a detector to a detection position, which detects when a part of a shielding plate that rotates with the output shaft of a reduction gear passes through the opening of the sensor part. The jig has an outer surface at the mounting position to the detector that is shaped to correspond to the opening of the sensor part, and comprises a base that has a groove-shaped cavity formed on the inside of the outer surface that can accommodate a part of the shielding plate, and a contact part located inside the cavity. The thickness of the base from the outer surface to the cavity is greater than or equal to the required specified gap distance between a part of the shielding plate at the reference position and the sensor part of the detector at the detection position. The contact part contacts the first surface of the shielding plate that faces the direction of rotation of the shielding plate when the base is fitted into the detector at the detection position at the mounting position and the shielding plate is at the reference position.

Description

Technical Field

[0001] The present disclosure relates to a mounting jig used when attaching a detector for detecting the rotation of the output shaft of an escalator, and a method for attaching a detector using the mounting jig.

Background Art

[0002] Patent Document 1 discloses an adjustment jig used when attaching a detector, which is a proximity switch into which a shielding plate provided on an escalator is inserted. The adjustment jig includes a gap setting portion having a thickness dimension corresponding to the gap between the detector and the shielding plate. Further, the adjustment jig includes a self-holding portion that is fitted into the opening of the detector. When the detector is attached, the self-holding portion presses against the inner wall of the opening, thereby preventing the adjustment jig from falling off from the opening of the detector.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] When adjusting the position between the shielding plate and the detector, it is also important that the relative position between a part of the shielding plate used for setting the gap and the detector is in a correct state. For example, when the shielding plate is not in the correct reference position and the position of the detector is adjusted and fixed, there is a risk that the rotated shielding plate and the detector will collide later. In the method for attaching a detector using the adjustment jig described in Patent Document 1, the relative position between a part of the shielding plate and the detector is not considered. Therefore, depending on the operator, it is necessary to adjust the position of the detector many times.

[0005] This disclosure was made to solve the above-mentioned problems. The object of this disclosure is to provide a mounting jig and mounting method that allows a detector installed on an escalator to be easily and accurately installed without the need for human intervention. [Means for solving the problem]

[0006] The mounting jig according to this disclosure is a jig for mounting a detector to a detection position for detecting when a part of a shielding plate that rotates together with the output shaft of an escalator reducer passes through an opening in the sensor part, and comprises a base having an outer surface shaped to correspond to the opening in the sensor part at the mounting position to the detector, and a groove-shaped cavity formed on the inside of the outer surface capable of housing a part of the shielding plate, and a contact part located inside the cavity, wherein the thickness of the base from the outer surface to the cavity is greater than or equal to a specified gap distance required between a part of the shielding plate at the reference position and the sensor part of the detector at the detection position, and the contact part contacts the first surface of the shielding plate facing the direction of rotation of the shielding plate when the base is fitted into the detector at the detection position at the mounting position and the shielding plate is at the reference position.

[0007] The mounting method according to this disclosure is a method for mounting a detector, which detects when a part of a shielding plate that rotates with the output shaft of an escalator reducer passes through an opening in the sensor part, to a detection position using a mounting jig, wherein the mounting jig comprises a base having an outer surface shaped to correspond to the opening in the sensor part at the mounting position to the detector, and a groove-shaped cavity formed inside the outer surface capable of housing a part of the shielding plate, and a contact part located inside the cavity, wherein the thickness of the base from the outer surface to the cavity is greater than or equal to a specified gap distance required between the part of the shielding plate at the reference position and the sensor part of the detector at the detection position, and contact The part is such that, when the base is fitted into the detector at the detection position and the shielding plate is at the reference position, it contacts the first surface of the shielding plate that faces the direction of rotation of the shielding plate, and comprises a fitting step of fitting the mounting jig into the opening of the sensor part of the detector at the mounting position; a temporary placement step of temporarily positioning the detector with the mounting jig fitted in it around the detection position after the fitting step; a rotation step of rotating the shielding plate in the rotational direction so that a part of the shielding plate is inserted into the cavity, and stopping the shielding plate so that the first surface contacts the contact part and is at the reference position; and a fixing step of fixing the detector to the base after the rotation step.

[0008] The mounting method according to this disclosure is a method for mounting a detector, which detects when a part of a shielding plate that rotates with the output shaft of an escalator reducer passes through an opening in the sensor part, to a detection position using a mounting jig, wherein the mounting jig comprises a base having an outer surface shaped to correspond to the opening in the sensor part at the mounting position to the detector, and a groove-shaped cavity formed inside the outer surface capable of housing a part of the shielding plate, and a contact part located inside the cavity, wherein the thickness of the base from the outer surface to the cavity is such that it is necessary between the part of the shielding plate at the reference position and the sensor part of the detector at the detection position. The gap distance is greater than or equal to a specified distance, and the contact portion contacts the first surface of the shielding plate that faces the direction of rotation of the shielding plate when the base is fitted into the detector at the detection position and the shielding plate is at the reference position, and the mounting includes a rotation step of rotating the shielding plate in the rotation direction and stopping it so that it is at the reference position, an insertion step of inserting a part of the shielding plate into the cavity of the mounting jig so that the first surface and the contact portion come into contact, a fitting step of fitting the mounting jig into the opening of the sensor part of the detector at the mounting position after the insertion step, and a fixing step of fixing the detector to the base after the fitting step. [Effects of the Invention]

[0009] According to this disclosure, the base ensures a corresponding gap distance between the shielding plate and the detector. Furthermore, the contact portion determines the relative position between a portion of the shielding plate and the detector to an appropriate position. Therefore, the detector in the escalator can be easily and accurately installed without the need for human intervention. [Brief explanation of the drawing]

[0010] [Figure 1] This is a perspective view showing the main part of an escalator to which the mounting jig in Embodiment 1 is applied. [Figure 2] This is a side view of the main part of an escalator to which the mounting jig in Embodiment 1 is applied. [Figure 3] This is a view from the X direction of the main part of the escalator to which the mounting jig in Embodiment 1 is applied. [Figure 4] This is a front view of the mounting jig in Embodiment 1. [Figure 5] This is a side view of the mounting jig in Embodiment 1. [Figure 6] This is a side view of the main part of an escalator to which the mounting jig in Embodiment 1 is applied. [Figure 7] This is a view from the X direction of the main part of the escalator to which the mounting jig in Embodiment 1 is applied. [Figure 8] This is a perspective view of the mounting jig 1 in a modified example of Embodiment 1. [Figure 9] This is a front view of the mounting jig in Embodiment 2. [Figure 10] This is a side view of the mounting jig in Embodiment 2. [Figure 11] This is a front view of the mounting jig in the first example of Embodiment 3. [Figure 12] This is a front view of the mounting jig in the second example of Embodiment 3. [Figure 13] This is a front view of the mounting jig in the third example of Embodiment 3. [Modes for carrying out the invention]

[0011] The embodiments for implementing this disclosure will be described with reference to the attached drawings. In each drawing, the same or corresponding parts are denoted by the same reference numerals. The explanation of such parts will be simplified or omitted as appropriate.

[0012] Embodiment 1. Figure 1 is a perspective view showing the main part of an escalator to which the mounting jig in Embodiment 1 is applied. Figure 2 is a side view of the main part of an escalator to which the mounting jig in Embodiment 1 is applied. Figure 3 is a view from the X direction of the main part of an escalator to which the mounting jig in Embodiment 1 is applied.

[0013] FIG. 1 shows the vicinity of the upper boarding and alighting opening 101 of the escalator 100. In the example of FIG. 1, an escalator 100 of the upper drive type with a machine room 102 provided below the upper boarding and alighting opening 101 is shown. The escalator 100 includes a plurality of steps 103, a step sprocket 104, a step chain 105, a drive mechanism 106, and a control panel 107.

[0014] The entirety of the plurality of steps 103 is connected in an endless manner and is disposed below the moving part of the escalator 100. In FIG. 1, only a part of the steps 103 is shown. The step sprocket 104 is provided in the machine room 102. The step chain 105 is hung on the steps 103 and the step sprocket 104. When the step sprocket 104 rotates, the plurality of steps 103 move together with the step chain 105.

[0015] The drive mechanism 106 includes a motor 108 and a speed reducer 109. The motor 108 generates a rotational driving force. The speed reducer 109 is connected to the motor 108 by an endless belt at the input shaft. The speed reducer 109 is connected to the step sprocket 104 by an endless belt at the output shaft 109a. The speed reducer 109 changes the rotational speed and torque of the rotational driving force input from the input shaft and outputs the changed rotational driving force from the output shaft 109a. That is, the output shaft 109a is rotated by the changed rotational driving force. The step sprocket 104 rotates by the rotational driving force of the output shaft 109a. Although not shown, a braking device for applying a braking force to the output shaft 109a is attached to the output shaft 109a.

[0016] A speed governor 50 is attached to the drive mechanism 106. The speed governor 50 includes a shielding plate 51 and a detector 52. The shielding plate 51 is fixed to the output shaft 109a so as to rotate synchronously with the output shaft 109a about the output shaft 109a. For example, the shielding plate 51 is a plate having a rotationally symmetric outer shape about a rotation axis. The detector 52 is fixed in the vicinity of the shielding plate 51 so that its relative position with respect to the speed reducer 109 does not change. The detector 52 detects the rotation angle of the shielding plate 51 at the fixed detection position.

[0017] The control panel 107 receives a signal indicating the rotation angle of the shielding plate 51 from the detector 52 of the speed governor 50. Based on the signal, the control panel 107 calculates the rotational speed of the output shaft 109a, that is, the speed in step 103. Note that this calculation may be performed by the detector 52, and the control panel 107 may receive the calculated speed from the detector 52. The control panel 107 controls the operation of the drive mechanism 106 using information such as speed to overall control the operation of the escalator 100.

[0018] Workers of a company performing maintenance management of the escalator 100 perform maintenance work such as inspection, cleaning, and component replacement of the drive mechanism 106 and the like. The workers perform the maintenance work by putting a part of their body into the opening 102a at the upper part of the machine room 102. In this maintenance work, the detector 52 is removed from or attached to the detection position.

[0019] Next, the speed governor 50 and the like will be described in detail using FIGS. 2 and 3. FIG. 3 is a perspective view when the detector 52 is viewed from the arrow X in FIG. 2.

[0020] In FIG. 2, the shielding plate 51 is stationary at the rotation position serving as the reference position. In the example of Embodiment 1, the side surface of the shielding plate 51 has a substantially square shape. However, the shielding plate 51 has an octagonal shape in which each vertex portion of the square is cut off in a triangular shape. For example, the reference position is the rotation position where the portion corresponding to the vertex of the substantially square faces the detection position.

[0021] During maintenance work, the worker manually rotates the output shaft 109a to rotate the shielding plate 51 around its approximately square center of gravity so that it reaches a reference position. For example, the reference position is the position where the gap between the detector 52 and the shielding plate 51 is measured when installing the detector 52. Here, the direction of rotation is unrelated to the operating direction of the escalator 100 and can be any direction from the upward or downward operating direction. In the following, an example in which the direction of rotation is counterclockwise on the plane of Figure 2 will be explained.

[0022] As shown in Figure 3, the detector 52 is fixed to the base 60. The detector 52 includes a sensor unit 53. The sensor unit 53 forms a U-shaped opening 54. The opening 54 is the portion enclosed by the upper detection wall 55 and a pair of detection side walls 56 provided by the sensor unit 53. The pair of detection side walls 56 are aligned in the direction of the rotation axis of the shielding plate 51. Detection light is irradiated from one of the pair of detection side walls 56 to the other by a light projector (not shown). For example, the detection light is infrared. For example, the distance between the pair of detection side walls 56 in the direction of the rotation axis, which is the width of the opening 54, is about 3 mm.

[0023] For example, the thickness of the shielding plate 51 is less than 1 mm. When the shielding plate 51 is in the reference position and the detector 52 is correctly fixed in the detection position, a specified gap distance is ensured between the shielding plate 51 and the sensor portion 53 of the detector 52. In this case, the shielding plate 51 is inserted deeper into the opening portion 54 than the specified insertion allowance.

[0024] Specifically, the shielding plate 51 is separated from one of the pair of detection side walls 56 by a lateral gap distance of L1 or more. The shielding plate 51 is separated from the other of the pair of detection side walls 56 by a lateral gap distance of L2 or more. In this example, gap distances L1 and L2 are equal. The distance between the shielding plate 51 and the upper detection wall 55 is separated from the shielding plate 51 by an upper gap distance of L3 or more, and is shorter than the penetration distance. Thus, the shielding plate 51 and the upper detection wall 55 will not satisfy the requirements if they are too close or too far apart. In this example, gap distance L3 is equal to gap distances L1 and L2, which is 1 mm. Note that gap distances L1, L2, and L3 may be different.

[0025] In this state, the detection light irradiated by the sensor unit 53 is blocked by the shielding plate 51. Although not shown in the figure, in this case, the light receiver provided on the other of the pair of detection side walls 56 will not detect the detection light. When the light receiver stops detecting the detection light it had been detecting, the detector 52 detects that a part of the shielding plate 51 has passed through the opening 54.

[0026] In the state shown in Figures 2 and 3, the shielding plate 51 and the pair of detection side walls 56 are separated by a gap distance of L1 or L2 or more, respectively, which prevents contact between the rotating shielding plate 51 and the sensor unit 53. The shielding plate 51 and the upper detection wall 55 are separated by a gap distance of L3 or more, which also prevents contact between the rotating shielding plate 51 and the sensor unit 53. Contact between the shielding plate 51 and the sensor unit 53 will lead to a malfunction of the detector 52. Furthermore, the shielding plate 51 can more reliably block the detection light when it is closer to the upper detection wall 55 than the penetration distance. Note that if the detector 52 deviates from the detection position in the tangential direction of the rotating circle indicated by arrow Y, the detector 52 may not be able to accurately detect the shielding plate 51. The tangential direction is the direction in which the tangent to the detection position on the rotating circle, which is the circle drawn when the shielding plate 51 rotates, points.

[0027] Thus, the positional relationship between the shielding plate 51 and the detector 52 needs to be adjusted by the worker in increments of 0.1 mm. To allow for flexible adaptation to site conditions, the detector 52 can be mounted at any position on the base 60 within a certain mounting range that includes the detection position. The mounting range has degrees of freedom in three dimensions: the rotation axis direction, the tangential direction, and the radial direction of the rotating circle. Here, the radial direction is perpendicular to both the rotation axis direction and the tangential direction. On the other hand, the installation work of attaching the detector 52 to the base 60 requires the worker to reach their arms into the narrow machine room 102, which also contains other equipment, and work in an unstable posture.

[0028] Previously, the process of attaching the detector 52 to the base 60 and measuring whether the gap distance between the detector 52 and the shielding plate 51 was sufficient and whether there was enough clearance for the shielding plate 51 to fit into the base had to be repeated many times. Therefore, workers now use an attachment jig to perform the attachment work.

[0029] Next, the mounting jig 1 will be explained using Figures 4 to 7. Figure 4 is a front view of the mounting jig in Embodiment 1. Figure 5 is a side view of the mounting jig in Embodiment 1. Figure 6 is a side view of the main part of the escalator to which the mounting jig in Embodiment 1 is applied. Figure 7 is a view from the X direction of the main part of the escalator to which the mounting jig in Embodiment 1 is applied.

[0030] Figure 5 is a view taken along arrow Z in Figure 4. As shown in Figures 4 and 5, the mounting jig 1 comprises a base 2 and a contact portion 3. In Embodiment 1, the contact portion 3 is a slope indicated by a dashed line in Figure 4 and by a diagonal line in Figure 5, indicating that it is located on the far side.

[0031] The base 2 is made of silicone rubber. However, the base 2 may also be made of wood, other resins, or metal. The base 2 comprises an upper wall 4, a first side wall 5, and a second side wall 6. In a cross-section perpendicular to the longitudinal direction indicated by the dashed line W, and excluding the contact portion 3, the base 2 has a U-shape consisting of the upper wall 4, the first side wall 5, and the second side wall 6.

[0032] The upper wall 4 is plate-shaped. The first side wall 5 and the second side wall 6 are plate-shaped and extend in the same direction from both ends of the upper wall 4. A cavity 7 is formed in the base 2, surrounded by the upper wall 4, the first side wall 5, and the second side wall 6.

[0033] The upper wall 4 comprises an inner upper wall surface 4a, an outer upper wall surface 4b, and an upper side wall surface 4c. The inner upper wall surface 4a faces the cavity 7. The outer upper wall surface 4b faces the opposite direction from the inner upper wall surface 4a. The upper side wall surface 4c is the surface of the upper wall 4 that faces the longitudinal direction of the base 2 and is the surface on which the contact portion 3 is provided. The thickness of the upper wall 4, i.e., the distance between the inner upper wall surface 4a and the outer upper wall surface 4b, corresponds to the indentation distance and the gap distance L3. For example, the thickness of the upper wall 4 is greater than or equal to the gap distance L3. For example, the thickness of the upper wall 4 is equal to the gap distance L3, which is 1 mm. In this case, the thickness of the upper wall 4 is shorter than the indentation distance.

[0034] The first side wall 5 comprises a first inner surface 5a and a first outer surface 5b. The first inner surface 5a faces the cavity 7. The first outer surface 5b faces away from the first inner surface 5a. The thickness of the first side wall 5, i.e., the distance between the first inner surface 5a and the first outer surface 5b, corresponds to the gap distance L1. For example, the thickness of the first side wall 5 is greater than or equal to the gap distance L1. For example, the thickness of the first side wall 5 is equal to the gap distance L1, which is 1 mm.

[0035] The second side wall 6 comprises a second inner surface 6a and a second outer surface 6b. The second inner surface 6a faces the cavity 7. The second outer surface 6b faces away from the second inner surface 6a. The thickness of the second side wall 6, i.e., the distance between the second inner surface 6a and the second outer surface 6b, corresponds to the gap distance L2. For example, the thickness of the second side wall 6 is greater than or equal to the gap distance L2. For example, the thickness of the second side wall 6 is equal to the gap distance L2, which is 1 mm.

[0036] The outer wall surface of the base 2 is formed by the outer upper wall surface 4b, the first outer surface 5b, and the second outer surface 6b. A colored mounting marker 2a is provided on the outer wall surface of the base 2 in the central part in the longitudinal direction of the mounting jig 1. The mounting marker 2a has a width corresponding to the opening 54 of the detector 52, which is not shown in this figure. The mounting marker 2a may be a portion that protrudes from its surroundings. At the mounting position, which is the position of the mounting marker 2a, the cross-section of the outer shape W of the base 2 exhibits a cross-sectional shape corresponding to the opening 54. That is, the U-shaped inner shape of the opening 54 and the shape of the outer wall surface of the base 2 are approximately the same.

[0037] The cavity 7 has a groove-like shape formed by the inner upper wall surface 4a, the first inner surface 5a, and the second inner surface 6a. The cavity 7 is shaped to accommodate the end portion of the shielding plate 51, which is not shown in this figure. That is, the distance between the first inner surface 5a and the second inner surface 6a, which is the width of the cavity 7, is the same as or longer than the thickness of the shielding plate 51. For example, the width of the cavity 7 is 0.8 mm, which is longer than the thickness of the shielding plate 51.

[0038] The contact portion 3 is located inside the cavity portion 7. The contact portion 3 is located at a specific relative position with respect to the mounting position, which is the position of the mounting marker 2a. This specific relative position is determined by the model of the escalator 100, the shape of the shielding plate 51, etc. When the base portion 2 is attached to the mounting position with respect to the detector 52 which is in the detection position, and the shielding plate 51 is in the reference position, the contact portion 3 is located at a position where it contacts a part of the shielding plate 51, specifically the first surface facing the rotation direction of the shielding plate 51.

[0039] In Embodiment 1, the contact portion 3 is an inclined surface that is tilted relative to the base portion 2 at a specific position and angle with respect to the mounting position. The contact portion 3 is tilted so that it moves away from the outer upper wall surface 4b as it moves away from the mounting position. The contact portion 3 is an inclined surface that is tilted at an angle corresponding to the first surface of the shielding plate 51.

[0040] The mounting jig 1 has a longer longitudinal length perpendicular to the cross-section than each length in the cross-section defined by W. For example, the longitudinal length of the mounting jig 1 exceeds 100 mm.

[0041] Next, Figures 6 and 7 will be used to explain how to mount the detector 52 to the detection position using the mounting jig 1. There are two mounting methods for the detector 52: a first mounting method and a second mounting method, which differ in the order of the steps. The mounting work using the first and second mounting methods begins with the shielding plate 51 fixed to the output shaft 109a of the reduction gear 109 at a rotational position other than the reference position, and the detector 52 is not mounted on the base 60.

[0042] The first mounting method comprises a first fitting step, a temporary placement step, a first rotation step, a fixing step, and a removal step. In the first fitting step, the worker fits the mounting jig 1 into the opening 54 of the detector 52 at the mounting position. At this time, the worker fits the base 2 into the opening 54 so that the mounting marker 2a aligns with the opening 54. In this state, the outer upper wall surface 4b, the first outer surface 5b, and the second outer surface 6b, which are the outer surfaces of the base 2, all come into contact with the sensor part 53.

[0043] After the first fitting process, in the temporary placement process, the worker temporarily places the detector 52 around the detection position. For example, the worker may temporarily fasten the detector 52 to the base 60 so that it is movable relative to the base 60. The worker may also hold the detector 52 in the temporary placement position by hand. In this state, the opening 54 of the sensor part 53 faces downward. The mounting jig 1 remains fitted into the opening 54. Because the base 2 is made of silicone rubber, which has a high coefficient of friction with metal, the mounting jig 1 is held to the sensor part 53 by the frictional force generated between the outer wall surface of the base 2 and the sensor part 53. The hollow part 7 of the mounting jig 1 faces the first surface 51a of the shielding plate 51.

[0044] After the temporary placement process, in the first rotation process, the worker releases the brake device of the drive mechanism 106 and manually rotates the output shaft 109a in the rotational direction. The worker rotates the shielding plate 51 in the rotational direction so that a part of the shielding plate 51, including the first surface 51a, is inserted into the cavity 7 of the mounting jig 1. The worker further rotates the shielding plate 51 until it stops at the reference position. In this state, the worker adjusts the positions of the detector 52 and the mounting jig 1 so that the contact portion 3 of the mounting jig 1 contacts the first surface 51a of the shielding plate 51. Also, the inner upper wall surface 4a contacts the shielding plate 51.

[0045] Figures 6 and 7 show the state after the first rotation process has been performed. During the first rotation process, the shielding plate 51 rotates, causing a portion of the shielding plate 51 to be inserted into the cavity 7, and the first surface 51a to contact the contact portion 3. The surface of the shielding plate 51 facing the radial direction of the rotation circle contacts the inner upper wall surface 4a, which is the bottom surface of the cavity 7. At this time, the shielding plate 51 is in the reference position. The detector 52 is fitted into the mounting jig 1 at the mounting position. Due to the positional relationship between the contact portion 3, the mounting position, and the first surface 51a, and the relationship between the thicknesses of the base portion 2, the position of the detector 52 in this state coincides with the detection position. That is, when the detector 52 is in this position, the gap distances L1, L2, and L3 between a portion of the shielding plate 51 in the reference position and the sensor portion 53 are secured, and the amount of the shielding plate 51 that bites into the sensor portion 53 is within the reference range. In the latter half of the first fixing process, the worker may make fine adjustments so that the screw holes for fixing the detector 52 to the base 60 align with the screw holes in the base 60.

[0046] After the first rotation process, in the fixing process, the worker fixes the detector 52 to the base 60 in its current position. After the fixing process, in the removal process, the worker moves the mounting jig 1 in the tangential direction Y of the rotation circle and removes the mounting jig 1 from the detector 52 and the shielding plate 51. At this time, the worker can easily remove the mounting jig 1 by pinching and pulling the end of the mounting jig 1 in the longitudinal direction, beyond the contact portion 3. After that, the work using the first mounting method is completed.

[0047] Next, the second mounting method will be described. The second mounting method comprises a second rotation step, an insertion step, a second fitting step, a second fixing step, and an extraction step.

[0048] In the second rotation process, the worker rotates the shielding plate 51 to a reference position and stops it at the reference position. After the second rotation process, in the insertion process, the worker inserts the hollow portion 7 of the mounting jig 1 into a part of the shielding plate 51. At this time, the worker inserts the mounting jig 1 so that the first surface 51a and the contact portion 3 come into contact. The surface of the shielding plate 51 facing the radial direction of the rotation circle comes into contact with the inner upper wall surface 4a, which is the bottom surface of the hollow portion 7.

[0049] After the insertion step, in the second fitting step, the worker fits the sensor part 53 of the detector 52 into the base 2 of the mounting jig 1 at the mounting position. Figures 6 and 7 show the position after the second fitting step has been performed. During the insertion step, a part of the shielding plate 51 is inserted into the cavity 7, and the first surface 51a comes into contact with the contact part 3. At this time, the shielding plate 51 is in the reference position. During the second fitting step, the detector 52 is fitted into the mounting jig 1 at the mounting position. Due to the positional relationship between the contact part 3, the mounting position, and the first surface 51a, and the relationship between the thicknesses of the base 2, the position of the detector 52 in this state coincides with the detection position.

[0050] After the second insertion process, the same fixing and removal processes as in the first installation method are performed. After the removal process, the work using the second installation method is completed.

[0051] Furthermore, after the second fitting process but before the fixing process, the worker may make fine adjustments so that the screw holes for fixing the detector 52 to the base 60 align with the screw holes in the base 60. At this time, the worker may manually wind the shielding plate 51 so that it rotates.

[0052] According to Embodiment 1 described above, the mounting jig 1 comprises a base portion 2 and a contact portion 3. The contact portion 3 is located in a position that contacts the first surface 51a when the base portion 2 is fitted into the detector 52 at the mounting position and the shielding plate 51 is at the reference position. The installation of the detector 52 is performed using the mounting jig 1 by either the first or second installation method. In either the first or second installation method, the base portion 2 of the mounting jig 1 ensures a corresponding appropriate gap distance between the shielding plate 51 and the detector 52. Furthermore, the contact portion 3 sets the relative position between a part of the shielding plate 51 and the detector 52 to an appropriate position. As a result, the amount of the shielding plate 51 bites into the detector 52 is also appropriate. In other words, the mounting jig 1 allows for the adjustment of both the gap distance and the amount of bite to be adjusted at the same time. Moreover, this positioning of the detector 52 can be easily performed by anyone. The operator can perform the positioning quickly. As a result, the detector 52 on the escalator 100 can be easily and accurately installed regardless of the operator.

[0053] Furthermore, the contact portion 3 is an inclined surface. As a result, the mounting jig 1 and the shielding plate 51 make surface contact with the first surface 51a and the inclined surface of the contact portion 3. Consequently, the mounting jig 1 can be fixed in a more precise positional relationship with a part of the shielding plate 51.

[0054] Furthermore, the base portion 2 is made of silicone rubber. Therefore, even when the opening portion 54 of the sensor portion 53 is facing downwards, the base portion 2 can be prevented from falling off the sensor portion 53.

[0055] Note that the shielding plate 51 does not have to be the shape shown in Embodiment 1. For example, the shielding plate 51 may be a plate that rotates around its center of gravity and has a shape that is rotationally symmetrical with respect to the center of gravity. Even in this case, the mounting jig 1 can still be used. In this case, the mounting jig 1 should be applied in accordance with the shape of the shielding plate 51, particularly the position and inclination of the first surface 51a.

[0056] Furthermore, as a modification of Embodiment 1, the mounting jig 1 may be provided with a handle 20. Figure 8 is a perspective view of the mounting jig 1 in a modified example of Embodiment 1.

[0057] As shown in Figure 8, the mounting jig 1 further comprises a handle 20. The handle 20 has a grip portion on which fingers can be placed.

[0058] For example, the handle 20 is provided on the upper wall surface 4c of the base 2. That is, the handle 20 is provided on the side of the base 2 on the side where the contact portion 3 is provided with respect to the mounting position.

[0059] With the handle 20 provided in this manner, workers can more easily remove the mounting jig 1 during the removal process.

[0060] Embodiment 2. Figure 9 is a front view of the mounting jig in Embodiment 2. Figure 10 is a side view of the mounting jig in Embodiment 2. Figure 10 is a view taken from the Z direction in Figure 9. The same reference numerals are used for parts that are the same as or equivalent to parts in Embodiment 1. Descriptions of these parts are omitted. Also, illustrations of the equipment related to the escalator 100 and the speed governor 50 are omitted.

[0061] As shown in Figures 9 and 10, the shape of the contact portion 3 in Embodiment 2 differs from that in Embodiment 1. Specifically, in Embodiment 2, the contact portion 3 is a rod. The contact portion 3 is provided across the cavity 7, extending from the first inner surface 5a to the second inner surface 6a. Both ends of the contact portion 3 are fixed to the first inner surface 5a and the second inner surface 6a, respectively.

[0062] The relative position of the contact portion 3 with respect to the mounting position is the same as in Embodiment 1, when the base portion 2 is attached to the mounting position relative to the detector 52 at the detection position, and the shielding plate 51 is at the reference position, it is the position in contact with the first surface 51a. For example, after the first rotation process is performed, the first surface 51a and the side surface of the contact portion 3 come into contact.

[0063] According to Embodiment 2 described above, the contact portion 3 is rod-shaped and extends from one side wall of the cavity 7 to the opposite side wall. Even with such a contact portion 3, the mounting jig 1 can appropriately determine the relative position between a part of the shielding plate 51 and the detector 52.

[0064] Embodiment 3. Figure 11 is a front view of the mounting jig in the first example of Embodiment 3. Figure 12 is a front view of the mounting jig in the second example of Embodiment 3. Figure 13 is a front view of the mounting jig in the third example of Embodiment 3. Parts identical or corresponding to parts of Embodiment 1 or 2 are denoted by the same reference numerals. Descriptions of these parts are omitted. Furthermore, illustrations of the escalator 100 and the speed governor 50 are omitted.

[0065] In Embodiment 3, the base portion 2 is provided with a movable hole 30. The contact portion 3 is a rod with a shape similar to that of Embodiment 1.

[0066] The movable holes 30 are drilled in the first side wall 5 and the second side wall 6, respectively. The movable holes 30 penetrate the first side wall 5 and the second side wall 6, respectively. The movable hole 30 on the first side wall 5 is drilled so that if the cavity portion is extended, it connects to the movable hole 30 on the second side wall 6. The movable holes 30 have a diameter such that the contact portion 3 fits into them. The movable holes 30 are provided at a position corresponding to the first surface 51a of the shielding plate 51 in the reference position.

[0067] Figure 11 shows a first example of the movable holes 30. In the first example, the movable holes 30 are provided at one or more locations. Each of the one or more movable holes 30 has the same diameter as the rod of the contact portion 3. Each of the multiple movable holes 30 is drilled at a position corresponding to the shape of the first surface 51a, which is determined by the model of the escalator 100, the shape of the shielding plate 51, etc. In this case, the contact portion 3, which is a rod, is movable to the position corresponding to the first surface 51a.

[0068] The contact portion 3 is fitted and fixed into a movable hole 30 at a position corresponding to the shielding plate 51 where work is performed. In this case, the mounting jig 1 performs the same function as in Embodiment 2. Furthermore, since only through holes need to be provided at the corresponding positions, the manufacturing of the mounting jig 1 is easier compared to Embodiment 1. Moreover, by simply inserting the contact portion 3 into the corresponding position, a suitable mounting jig 1 can be used regardless of the work capacity. In addition, by providing multiple movable holes 30, the mounting jig 1 can be used for maintenance work on various types of escalators.

[0069] Figure 12 shows a second example of the movable hole 30. In the second example, the movable hole 30 is an elongated hole drilled in the longitudinal direction of the mounting jig 1, that is, in the tangential direction of the circle of rotation drawn by the shielding plate 51. The contact portion 3 is fitted into the movable hole 30 and fixed at a relative position corresponding to the shielding plate 51 on which work is performed with respect to the mounting position. The movable hole 30 may be marked to indicate the position of the contact portion 3 corresponding to the shape of the shielding plate 51.

[0070] Figure 13 shows a third example of the movable hole 30. In the third example, the movable hole 30 is an elongated hole drilled in the depth direction of the cavity 7, that is, in the radial direction of the rotation circle drawn by the shielding plate 51. The contact portion 3 is fitted into the movable hole 30 and fixed at a relative position corresponding to the shielding plate 51 on which work is performed with respect to the mounting position. The movable hole 30 may be marked to indicate the position of the contact portion 3 corresponding to the shape of the shielding plate 51.

[0071] In the second and third examples, the mounting jig 1 performs the same function as in the second embodiment. The rod-shaped contact portion 3 is movable to a position corresponding to the first surface 51a. Furthermore, since only through holes need to be provided at the corresponding positions, the mounting jig 1 can be manufactured more easily than in the first embodiment. In addition, by providing the elongated movable holes 30, the mounting jig 1 can be used for maintenance work on various types of escalators.

[0072] To summarize the above explanation, the possible configurations of the technology relating to this disclosure include the configurations listed below as appendices. (Note 1) A jig for mounting a detector at a detection position, which detects when a part of a shielding plate that rotates together with the output shaft of an escalator's speed reducer passes through an opening in the sensor section, The base portion has an outer surface with a shape corresponding to the opening of the sensor portion at the mounting position to the detector, and a groove-shaped cavity formed on the inside of the outer surface that can house a part of the shielding plate, A contact portion located inside the aforementioned cavity, Equipped with, The thickness of the base portion from the outer surface to the cavity portion is greater than or equal to the required specified gap distance between a part of the shielding plate where the rotation position is the reference position and the sensor portion of the detector where the detection position is located. The contact portion contacts the first surface of the shielding plate that faces the direction of rotation of the shielding plate when the base is fitted into the detector at the detection position at the mounting position and the shielding plate is at the reference position. Mounting jig. (Note 2) The contact portion is an inclined surface with respect to the base at an angle such that it is aligned with the first surface when the shielding plate is in the reference position. Mounting jig as described in Appendix 1. (Note 3) The contact portion is rod-shaped and extends from one side wall of the cavity to the opposite side wall. Mounting jig as described in Appendix 1. (Note 4) The relative position of the contact portion from the mounting position is movable to a position corresponding to the first surface of the shielding plate at the reference position. Mounting jig as described in Appendix 3. (Note 5) The base portion has a movable hole drilled in a position corresponding to the first surface of the shielding plate at the reference position, The contact portion is fitted into the movable hole and fixed in place. Mounting fixture as described in Appendix 3 or Appendix 4. (Note 6) The base is made of silicone rubber. Mounting fixture as described in any one of the items from Appendix 1 to Appendix 5. (Note 7) A handle provided on the side of the base on the side where the contact portion is provided with respect to the mounting position, It also has the following features: Mounting fixture as described in any one of the items from Appendix 1 to Appendix 6. (Note 8) A method for mounting a detector, which detects when a part of a shielding plate that rotates with the output shaft of an escalator's speed reducer passes through an opening in the sensor section, to a detection position using a mounting jig, The mounting jig comprises a base having an outer surface shaped to correspond to the opening of the sensor portion at the mounting position to the detector, and a groove-shaped cavity formed inside the outer surface capable of housing a part of the shielding plate, and a contact portion located inside the cavity, wherein the thickness of the base from the outer surface to the cavity is greater than or equal to a specified gap distance required between a part of the shielding plate at the reference position and the sensor portion of the detector at the detection position, and the contact portion contacts the first surface of the shielding plate facing the direction of rotation when the base is fitted into the detector at the mounting position and the shielding plate is at the reference position, The fitting process involves fitting the mounting jig into the opening portion of the sensor part of the detector at the mounting position, After the fitting step, a temporary placement step is performed in which the detector with the mounting jig fitted is temporarily placed around the detection position, After the temporary placement step, the shielding plate is rotated in the rotational direction so that a part of the shielding plate is inserted into the cavity, and the shielding plate is stopped so that the first surface contacts the contact portion and is in the reference position. After the rotation step, a fixing step is performed to fix the detector to the base, A mounting method that includes [a specific feature / feature]. (Note 9) A method for mounting a detector, which detects when a part of a shielding plate that rotates with the output shaft of an escalator's speed reducer passes through an opening in the sensor section, to a detection position using a mounting jig, The mounting jig comprises a base having an outer surface shaped to correspond to the opening of the sensor portion at the mounting position to the detector, and a groove-shaped cavity formed inside the outer surface capable of housing a part of the shielding plate, and a contact portion located inside the cavity, wherein the thickness of the base from the outer surface to the cavity is greater than or equal to a specified gap distance required between a part of the shielding plate at the reference position and the sensor portion of the detector at the detection position, and the contact portion contacts the first surface of the shielding plate facing the direction of rotation when the base is fitted into the detector at the mounting position and the shielding plate is at the reference position, A rotation step of rotating the shielding plate in the rotational direction and stopping it so that it reaches the aforementioned reference position, After the rotation step, an insertion step is performed in which a part of the shielding plate is inserted into the cavity of the mounting jig so that the first surface and the contact portion come into contact, After the insertion step, the fitting step involves fitting the mounting jig into the opening portion of the sensor part of the detector at the mounting position, After the fitting step, a fixing step is performed to fix the detector to the base, A mounting method that includes [a specific feature / feature]. [Explanation of symbols]

[0073] 1 Mounting jig, 2 Base, 2a Mounting marker, 3 Contact part, 4 Upper wall, 4a Inner upper wall surface, 4b Outer upper wall surface, 4c Upper side wall surface, 5 First side wall, 5a First inner surface, 5b First outer surface, 6 Second side wall, 6a Second inner surface, 6b Second outer surface, 7 Cavity, 20 Handle, 30 Moving hole, 50 Speed ​​governor, 51 Shielding plate, 51a First surface, 52 Detector, 53 Sensor part, 54 Opening, 55 Upper detection wall, 56 Detection side wall, 60 Base, 100 Escalator, 101 Upper entrance / exit, 102 Machine room, 102a Opening, 103 Step, 104 Step sprocket, 105 Step chain, 106 Drive mechanism, 107 Control panel, 109 Motor, 109 Reducer, 109a Output shaft

Claims

1. A jig for mounting a detector at a detection position, which detects when a part of a shielding plate that rotates together with the output shaft of an escalator's speed reducer passes through an opening in the sensor section, The base portion has an outer surface with a shape corresponding to the opening of the sensor portion at the mounting position to the detector, and a groove-shaped cavity formed on the inside of the outer surface that can house a part of the shielding plate, A contact portion located inside the aforementioned cavity, Equipped with, The thickness of the base portion from the outer surface to the cavity portion is greater than or equal to the required specified gap distance between a part of the shielding plate where the rotation position is the reference position and the sensor portion of the detector where the detection position is located. The contact portion contacts the first surface of the shielding plate that faces the direction of rotation of the shielding plate when the base is fitted into the detector at the detection position at the mounting position and the shielding plate is at the reference position. Mounting jig.

2. The contact portion is an inclined surface with respect to the base at an angle such that it is aligned with the first surface when the shielding plate is in the reference position. The mounting jig according to claim 1.

3. The contact portion is rod-shaped and extends from one side wall of the cavity to the opposite side wall. The mounting jig according to claim 1.

4. The relative position of the contact portion from the mounting position is movable to a position corresponding to the first surface of the shielding plate at the reference position. The mounting jig according to claim 3.

5. The base portion has a movable hole drilled in a position corresponding to the first surface of the shielding plate at the reference position, The contact portion is fitted into the movable hole and fixed in place. The mounting jig according to claim 3.

6. The base is made of silicone rubber. A mounting jig according to any one of claims 1 to 5.

7. A handle provided on the side of the base on the side where the contact portion is provided with respect to the mounting position, It also has the following features: A mounting jig according to any one of claims 1 to 5.

8. A method for mounting a detector, which detects when a part of a shielding plate that rotates with the output shaft of an escalator's speed reducer passes through an opening in the sensor section, to a detection position using a mounting jig, The mounting jig comprises a base having an outer surface shaped to correspond to the opening of the sensor portion at the mounting position to the detector, and a groove-shaped cavity formed inside the outer surface capable of housing a part of the shielding plate, and a contact portion located inside the cavity, wherein the thickness of the base from the outer surface to the cavity is greater than or equal to a specified gap distance required between a part of the shielding plate at the reference position and the sensor portion of the detector at the detection position, and the contact portion contacts the first surface of the shielding plate facing the direction of rotation when the base is fitted into the detector at the mounting position and the shielding plate is at the reference position, The fitting process involves fitting the mounting jig into the opening portion of the sensor part of the detector at the mounting position, After the fitting step, a temporary placement step is performed in which the detector with the mounting jig fitted is temporarily placed around the detection position, After the temporary placement step, the shielding plate is rotated in the rotational direction so that a part of the shielding plate is inserted into the cavity, and the shielding plate is stopped so that the first surface contacts the contact portion and is in the reference position. After the rotation step, a fixing step is performed to fix the detector to the base, A mounting method that includes [a specific feature / feature].

9. A method for mounting a detector, which detects when a part of a shielding plate that rotates with the output shaft of an escalator's speed reducer passes through an opening in the sensor section, to a detection position using a mounting jig, The mounting jig comprises a base having an outer surface shaped to correspond to the opening of the sensor portion at the mounting position to the detector, and a groove-shaped cavity formed inside the outer surface capable of housing a part of the shielding plate, and a contact portion located inside the cavity, wherein the thickness of the base from the outer surface to the cavity is greater than or equal to a specified gap distance required between a part of the shielding plate at the reference position and the sensor portion of the detector at the detection position, and the contact portion contacts the first surface of the shielding plate facing the direction of rotation when the base is fitted into the detector at the mounting position and the shielding plate is at the reference position, A rotation step of rotating the shielding plate in the rotational direction and stopping it so that it reaches the aforementioned reference position, After the rotation step, an insertion step is performed in which a part of the shielding plate is inserted into the cavity of the mounting jig so that the first surface and the contact portion come into contact, After the insertion step, the fitting step involves fitting the mounting jig into the opening portion of the sensor part of the detector at the mounting position, After the fitting step, a fixing step is performed to fix the detector to the base, A mounting method that includes [a specific feature / feature].

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