Measuring Jig

Abstract

To provider a measurement fixture capable of easily measuring the operation pressure of a safety switch without removing a step even when the skirt guard safety switch is present at a position very near the step.SOLUTION: A measurement fixture 10 comprises: a step fixing member 11; a gap adjusting member 12; and a measuring piece 13. The step fixing member 11 can be fixed to a position adjacent to a skirt guard 5 of a passenger conveyor on the surface of a step 1 (footstep) of the passenger conveyor. The gap adjusting member 12 is installed in the step fixing member 11. The measuring piece 13 includes a first part 13aa and a second part 13ba. The second part 13ba is an end distanced from the first part 13aa. In a state where the first part 13aa is held and bound between the gap adjusting member 12 and the skirt guard 5, at least a part of the measuring piece 13 can press the skirt guard 5 by applying stress to the second part 13ba in a direction away from the skirt guard 5.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present disclosure relates to a measurement fixture. [Background technology]

[0002] In passenger conveyors such as escalators, skirt guards are installed below each of a pair of handrails located on the sides. A skirt guard safety switch is installed on the back of the skirt guard. The skirt guard safety switch detects when a user's shoe or other object becomes caught between the skirt guard and the step, and stops the escalator. This is because, from a safety perspective, it is undesirable for the escalator to continue operating with a shoe or other object caught.

[0003] The skirt guard safety switch detects the occurrence of such troubles and stops the operation of the escalator. However, if it detects a slight pressure, such as when a user's foot touches the skirt guard, it is not necessary to stop the escalator. The skirt guard safety switch must have a mechanism that stops the escalator when it detects a large pressure that requires stopping, such as when a user's shoe gets caught, and does not stop the escalator even when it detects a small pressure.

[0004] In order to activate the skirt guard safety switch when a pressing force within a predetermined reference range is generated, an inspection is performed to confirm whether the pressing force at which the skirt guard safety switch operates is within the reference range. Such an inspection device is disclosed, for example, in Japanese Patent Laid-Open Publication No. 2002-274773 (Patent Document 1). [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Japanese Patent Application Laid-Open No. 2002-274773 Summary of the Invention [Problem to be solved by the invention]

[0006] Patent Document 1 discloses a pressure detector that includes a base fixed to a step, a presser that applies a pressure to a skirt guard by operating a lever, and a display device that displays the pressure. For example, if a skirt guard safety switch is located very close to the surface of the step, the presser of the pressure detector in Patent Document 1 is located far from the surface of the step, making it difficult to position the presser directly in front of the skirt guard safety switch. This makes accurate measurement difficult. Therefore, in such cases, it becomes necessary to remove the step and place a separate tension gauge for pressure measurement directly in front of the skirt guard safety switch to perform the measurement.

[0007] The present disclosure has been made in consideration of the above-mentioned problems, and its purpose is to provide a tool for measuring the safety switch operating pressure that can be used to perform measurements without removing the step, even when the skirt guard safety switch is located very close to the surface of the step. [Means for solving the problem]

[0008] A measuring jig according to the present disclosure is for measuring the operating pressure of a passenger conveyor's skirt guard safety switch, and includes a step fixing member, a gap adjusting member, and a measuring piece. The step fixing member can be fixed to a position adjacent to the skirt guard of the passenger conveyor on the surface of the step (step). The gap adjusting member is attached to the step fixing member and is slidable in a direction along the surface of the step. The measuring piece can be sandwiched and constrained between one end of the gap adjusting member in the sliding direction and the skirt guard. The measuring piece includes a first portion and a second portion. The first portion can be constrained to an end of the gap adjusting member. The second portion is an end spaced apart from the first portion. With the first portion sandwiched and constrained between the gap adjusting member and the skirt guard, stress can be applied to the second portion in a direction away from the skirt guard, causing at least a portion of the measuring piece to press the skirt guard toward the opposite side of the gap adjusting member in the sliding direction. [Effects of the Invention]

[0009] According to the present disclosure, it is possible to provide a measuring tool for safety switch operating pressure that allows measurement work to be performed without removing the step, even if the skirt guard safety switch is located very close to the step surface. [Brief explanation of the drawings]

[0010] [Figure 1] 1 is a schematic diagram showing an example of an escalator on which a safety switch operating pressure measurement operation is performed using a measurement jig according to an embodiment of the present invention. FIG. [Figure 2] 2 is a schematic diagram showing an aspect in which the measuring jig of the present embodiment is installed in an area II surrounded by a dotted line in FIG. 1 and measurement work is performed. FIG. [Figure 3] 3 is a schematic diagram for explaining the configuration and operation of the measuring jig shown in FIG. 2. FIG. [Figure 4] FIG. 10 is a schematic diagram showing a comparative example of a safety switch operating pressure measuring jig installed and a measuring operation performed. DETAILED DESCRIPTION OF THE INVENTION

[0011] Hereinafter, an embodiment will be described with reference to the drawings. For convenience of explanation, the X, Y, and Z directions are defined. Unless otherwise specified, the positional relationship, arrangement direction, extension direction, etc. of each member hereinafter will be shown when a measurer is standing on step 1, which will be described later. Furthermore, unless otherwise specified, the direction of each component of measuring jig 10 in the following description will be shown when measuring jig 10 is attached to the surface of step 1, which extends along the XY plane and on which a measurer can stand.

[0012] <Configuration of Escalator and Skirt Guard Safety Switch> Fig. 1 is a schematic diagram showing an example of an escalator on which the safety switch operating pressure measurement work is performed using the measurement jig of this embodiment. As shown in Fig. 1, the escalator mainly comprises multiple steps 1, a pair of balustrades 2, and a skirt guard 5. The multiple steps 1 are located between the pair of balustrades 2. A moving handrail is installed on the upper surface of the balustrade 2. The multiple steps 1 circulate between an upper floor 3 and a lower floor 4 of the escalator, repeatedly ascending and descending. Skirt guards 5 are arranged below the balustrades 2 and inside the width of the escalator, sandwiching the multiple steps 1 on both the left and right sides.

[0013] FIG. 2 is a schematic diagram showing an embodiment of the measuring jig installed in the area II enclosed by the dotted line in FIG. 1 and performing the measurement. Note that FIG. 2 shows the measurement operation as a cross-sectional view along the ZX plane. As shown in FIG. 2, a skirt guard safety switch (hereinafter also referred to as "safety switch 6") and a skirt guard mounting angle (hereinafter also referred to as "mounting angle 7") are located in an area behind the skirt guard 5, below the balustrade 2. The safety switch 6 is located adjacent to the surface (top surface) of the step 1 facing the Z direction. The safety switch 6 is installed on each of the upper floor 3 and the lower floor 4 of the escalator. On each of the upper floor 3 and the lower floor 4, a safety switch 6 is installed on both the left and right sides of the width. In other words, a total of four safety switches 6 are installed on the escalator. The safety switch 6 is attached to a mounting plate 6a by a fixing member such as a screw. The detection unit of the safety switch 6 is positioned facing the surface of the skirt guard 5. As shown in FIG. 2, the detection portion of the safety switch 6 protrudes from the end of the mounting plate 6a toward the skirt guard 5. The mounting plate 6a to which the safety switch 6 is attached is fixed to the mounting angle 7 with bolts 8. The safety switch 6 may include a pressure fine adjustment piece 6b. The pressure fine adjustment piece 6b is disposed between the detection portion of the safety switch 6 and the skirt guard 5.

[0014] As shown in Fig. 2, the step 1 of the escalator in Fig. 1 includes, in more detail, a floor board base portion 1a and a plurality of comb portions 1b. The floor board base portion 1a is a base member that constitutes the step 1 on which the user's feet stand.

[0015] The floorboard base portion 1a has an upper surface extending along the XY plane. Unless otherwise specified, the comb portions 1b have a plate-like shape extending upward in the Z direction from the upper surface of the floorboard base portion 1a. The multiple comb portions 1b are formed to extend along the Y direction at intervals in the X direction so that they have a linear shape arranged at approximately equal intervals when viewed in a plan view from above in the Z direction. The area between a pair of comb portions 1b adjacent to each other in the X direction, where no comb portions 1b are present, forms a groove 1c. The upper surface of the floorboard base portion 1a is exposed in the groove 1c.

[0016] <Configuration of measurement jig> Fig. 3 is a schematic diagram for explaining the configuration and operation of the measurement jig shown in Fig. 2. Measurement jig 10 of this embodiment is used to measure the operating pressure of skirt guard safety switch 6. As shown in Figs. 2 and 3, measurement jig 10 mainly includes a step fixing member 11, a gap adjusting member 12, a lever-shaped measuring piece 13, a pressure display unit 17, and a detection unit 16.

[0017] The step fixing member 11 mainly includes a main body, multiple mating portions 11a, and a gap adjustment handle 14. The multiple mating portions 11a are formed to protrude from the underside of the main body of the step fixing member 11 along the first direction, i.e., the Z direction. The multiple mating portions 11a are formed to extend along the Y direction at intervals in the X direction when viewed horizontally, similar to the grooves 1c of the escalator steps 1. Therefore, the mating portions 11a are mated with the grooves 1c of the escalator steps 1. Specifically, the mating portions 11a are inserted into the grooves 1c. The step fixing member 11 is arranged so that the comb portions 1b and the mating portions 11a are alternately arranged in the X direction. The gap adjustment handle 14 is located on the upper side of the main body. A gear 15 is connected to the gap adjustment handle 14. By rotating the gap adjustment handle 14 as indicated by arrow R, the gap adjustment member 12 can be moved in the direction indicated by arrow M via the gear 15. As a result, when the gap adjustment member 12 presses the measuring piece 13 against the skirt guard 5 as described below, the fitting portion 11a is pressed against the inner surface of the groove 1c, and the entire step fixing member 11 including the fitting portion 11a is fixed onto the step 1.

[0018] The gap adjusting member 12 is a rod-shaped body extending in the X direction. The shape of the cross section perpendicular to the extension direction of the gap adjusting member 12 may be any shape, for example, a square shape. The surface shape of the end 12a of the gap adjusting member 12 facing the skirt guard may be flat as shown in FIG. 2. Alternatively, the surface shape of the end 12a may be a curved surface convex toward the skirt guard side.

[0019] The gap adjusting member 12 is slidable in the X direction relative to the step fixing member 11. Any structure may be adopted for the step fixing member 11 to slidably support the gap adjusting member 12. For example, the step fixing member 11 may be provided with a guide rail extending long in the X direction. The outer edge of the gap adjusting member 12 extending in the X direction may be fitted into the guide rail. In this manner, the gap adjusting member 12 is movable in the X direction relative to the step fixing member 11. The guide rail may include, for example, a side portion facing the gap adjusting member 12 in the Y direction and clamping portions connected to both ends of the side portion in the Z direction. A pair of clamping portions may be formed to protrude in the Y direction from both ends of the side portion. The pair of clamping portions may be configured to clamp the gap adjusting member 12 in the Z direction.

[0020] A plate-shaped gear functioning as a rack may be formed on the surface of the gap adjustment member 12 facing the gear 15. The gear 15 may be meshed with the plate-shaped gear. In this case, the gear 15 functions as a pinion. By rotating the gap adjustment handle 14, the gap adjustment member 12 is moved in the X direction via the gear 15. A fixing mechanism for stopping the rotation of the gap adjustment handle 14 or the gear 15 may be provided. Any configuration can be used as the fixing mechanism as long as it can stop the rotation of the gap adjustment handle 14 or the gear 15.

[0021] The measuring piece 13 can be restrained by being held between the gap adjusting member 12 and the skirt guard 5. Specifically, as shown in Figures 2 and 3, the measuring piece 13 can be restrained in a state of contact with the surface of the skirt guard 5 by being pressed by the end 12a of the gap adjusting member 12 that faces the skirt guard 5.

[0022] The test piece 13 may be formed of, for example, a flat plate-like or rod-like member. It is preferable that the test piece 13 has higher rigidity than the skirt guard 5.

[0023] As shown in FIGS. 2 and 3, the test piece 13 includes a first test piece portion 13a, a second test piece portion 13b, and a boundary portion 13c. The second test piece portion 13b is disposed above the first test piece portion 13a. The first test piece portion 13a and the second test piece portion 13b are connected at the boundary portion 13c. The second test piece portion 13b has a longer extension dimension than the first test piece portion 13a. Specifically, the first test piece portion 13a has a length L1, and the second test piece portion 13b has a length L2. The length L1 is longer than the length L2. To increase the rigidity of the test piece 13, a reinforcing member such as an additional beam member may be disposed at the boundary portion 13c. For example, a beam member may be disposed as the reinforcing member, connecting the portion of the first test piece portion 13a adjacent to the boundary portion 13c and the portion of the second test piece portion 13b.

[0024] The measuring piece 13 is bent at a boundary 13c between the first measuring piece portion 13a and the second measuring piece portion 13b. The first measuring piece portion 13a of the measuring piece 13 includes a first portion 13aa that is sandwiched and restrained by the gap adjusting member 12 and the skirt guard 5.

[0025] The end of the measuring piece 13 opposite the first portion 13aa in the extending direction is the second portion 13ba. The first measuring piece portion 13a includes the first portion 13aa, and the second measuring piece portion 13b includes the second portion 13ba.

[0026] At least a portion of the first portion 13aa is pressed against the surface of the skirt guard 5 by the end portion 12a of the gap adjusting member 12, and the measuring strip 13 is sandwiched and restrained between the end portion 12a of the gap adjusting member 12 and the skirt guard 5. In this state, as shown by arrow F1 in FIG. 2, stress is applied to the second portion 13ba of the measuring strip 13 in a direction away from the skirt guard 5 (in FIG. 2, a direction away from the skirt guard 5 and toward the gap adjusting member 12). As a result, the second portion 13ba can move in the direction shown by arrow F1 (a direction toward the gap adjusting member 12). This allows at least a portion of the first measuring strip portion 13a of the measuring strip 13 to press the skirt guard 5 in the direction opposite the gap adjusting member 12 in the X direction, i.e., in the direction shown by arrow F2 in FIG. 2, due to the principle of leverage. Details will be described later.

[0027] A pressure display unit 17 is provided on the measuring piece 13. The pressure display unit 17 displays the pressure with which a portion of the first measuring piece portion 13a presses against the skirt guard 5. A detection unit 16 is provided on the measuring piece 13. The detection unit 16 detects stress applied to the second portion 13ba in the direction indicated by arrow F1. The pressure displayed on the pressure display unit 17 may be calculated based on the measured value of stress detected by the detection unit 16. For example, the relationship between the measured value of stress detected by the detection unit 16 and the pressure with which a portion of the first measuring piece portion 13a presses against the skirt guard 5 at that time is experimentally determined in advance, and conversion data based on that relationship (such as a data table or relational equation showing the correlation between the measured value of stress detected by the detection unit 16 and the actual measured value of the pressure with which a portion of the first measuring piece portion 13a presses against the skirt guard 5 at that time) is prepared. Based on the conversion data, the pressure with which a part of the first measuring piece portion 13a presses against the skirt guard 5 may be calculated from the measured value of the stress, and the calculation result may be displayed on the pressure display unit 17. A calculation device that performs the above-mentioned calculation and a storage device that stores the conversion data may be included in the detection unit 16 or the pressure display unit 17.

[0028] Any display device such as a liquid crystal display device can be used as the pressure display unit 17. Any measuring device can be used as the detection unit 16 as long as it can detect the stress applied to the second portion 13ba in the direction indicated by the arrow F1.

[0029] <Measurement method> 2 and 3, a method for measuring the operating pressure of a skirt guard safety switch 6 using a measurement jig 10 according to the present disclosure will be described.

[0030] First, in the first step, the measuring jig 10 is placed on the stopped escalator in a position facing the skirt guard safety switch 6. Specifically, the step fixing member 11 of the measuring jig 10 is placed on the step 1 in the area facing the skirt guard safety switch 6. At this time, the fitting portion 11a of the step fixing member 11 is inserted into the groove 1c of the step 1 as shown in FIG.

[0031] Next, in the second step, the test piece 13 is installed. Specifically, the test piece 13 is positioned between the end 12a of the gap adjusting member 12 supported by the step fixing member 11 and the skirt guard 5, with the first portion 13aa positioned opposite the safety switch 6. In this state, the gap adjusting handle 14 is turned to move the gap adjusting member 12 toward the skirt guard 5. As a result, the end 12a of the gap adjusting member 12 presses the first portion 13aa of the test piece 13 against the skirt guard 5. In this state, the gap adjusting handle 14 is locked to prevent it from rotating. As a result, the test piece 13 is fixed in a gripped state between the skirt guard 5 and the gap adjusting member 12. Furthermore, as the gap adjusting member 12 presses the test piece 13, the fitting portion 11a of the step fixing member 11 is pressed against the inner circumferential surface of the groove 1c of the step 1. As a result, the step fixing member 11 of the measuring jig 10 is fixed to the step 1.

[0032] At this time, the gap adjustment member 12 is positioned near the surface of the step 1, and the first portion 13aa of the measuring piece 13 can be easily positioned near the surface of the step 1 and in a position facing the safety switch 6. Furthermore, as will be described later, the operating pressure of the safety switch 6 can be measured by applying stress to the second portion 13ba, which is positioned at a position offset from the directional axis along which the first portion 13aa of the measuring piece 13 presses the skirt guard 5. Therefore, there is no need to directly operate a measuring member that extends along the directional axis along which the skirt guard 5 is pressed, as in the conventional method, and there is no need to remove the step 1 for the measurement.

[0033] Next, in the third step, the operating pressure is measured. Specifically, by applying stress in the direction of arrow F1 to the second portion 13ba of the test piece 13, a part of the first portion 13aa of the test piece 13 presses the skirt guard 5 in the direction indicated by arrow F2. The pressing pressure at this time is displayed on the pressure display unit 17. Stress is applied to the second portion 13ba of the test piece 13 until the skirt guard 5 pressed by the test piece 13 activates the skirt guard safety switch 6. The value displayed on the pressure display unit 17 when the safety switch 6 activates (the measured operating pressure) is recorded.

[0034] Next, in the fourth step, the operating pressure is judged to be appropriate. Specifically, it is determined whether the measured value of the operating pressure recorded in the third step satisfies the standard. If the measured value satisfies the standard, the measurement ends. If the measured value does not satisfy the standard, the safety switch 6 is adjusted, for example, by adjusting the position of the pressure fine adjustment piece 6b. Then, the second to fourth steps are performed again. The second to fourth steps are repeated until the measured value is judged to satisfy the standard in the fourth step.

[0035] <effect> A measuring jig 10 according to the present disclosure is for measuring the operating pressure of a skirt guard safety switch 6 of a passenger conveyor, and includes a step fixing member 11, a gap adjusting member 12, and a measuring piece 13. The step fixing member 11 can be fixed to a position adjacent to the skirt guard 5 of the passenger conveyor on the surface of a step 1 (step). The gap adjusting member 12 is attached to the step fixing member 11 and is slidable in a direction along the surface of the step 1 (X direction). The measuring piece 13 can be clamped and restrained between one end 12a of the gap adjusting member 12 in the sliding direction and the skirt guard 5. The measuring piece 13 includes a first portion 13aa and a second portion 13ba. The first portion 13aa can be restrained by the end 12a of the gap adjusting member 12. The second portion 13ba is an end spaced apart from the first portion 13aa. With the first portion 13aa sandwiched and restrained between the gap adjustment member 12 and the skirt guard 5, stress is applied to the second portion 13ba in a direction away from the skirt guard 5, so that at least a portion of the measuring piece 13 can press the skirt guard 5 in the opposite direction to the gap adjustment member 12 in the sliding direction.

[0036] The following describes the configuration and problems of a comparative example of a measuring jig, and also describes in detail the effects of the measuring jig 10.

[0037] FIG. 4 is a schematic diagram showing a comparative example of a measurement jig installed to measure the operating pressure of a safety switch 6. As shown in FIG. 4, a conventional measurement jig 100 mainly includes, for example, a pressure measurement tension gauge (hereinafter also referred to as "tension gauge 101") and a pressure display unit 102. The tension gauge 101 includes a main body 101a and a measurement unit 101b. The main body 101a extends elongatedly in one direction, i.e., the left-right direction in FIG. 4. The pressure display unit 102 is attached to the main body 101a. The measurement unit 101b is a rod-shaped member that extends from one end of the main body 101a in the extension direction and can contact the portion where the pressure is to be measured. The measurer holds the measurement jig 100 in his / her hand so that the left-right direction in FIG. 4, in which the measurement jig 100 extends elongatedly, is aligned with the X direction.

[0038] The pressure display unit 102 displays the value of the measured pressing force F, for example, by means of a scale 102a extending in the X direction. The pressure may be indicated by a pressure indicator needle 102b arranged adjacent to the scale 102a.

[0039] An anti-slip cap 103 may be formed at the tip of the measuring part 101b. The anti-slip cap 103 is made of a commonly known non-slip material such as rubber. Measurement is performed by an operator holding the measuring jig 100 and applying a pressing force F to the skirt guard 5 with their hands so that the anti-slip cap 103 comes into contact with the skirt guard 5.

[0040] At this time, it is necessary to bring the tension gauge 101 into contact with the surface of the skirt guard 5 and apply a pressing force F so that the measuring part 101b extends perpendicular to the surface of the skirt guard 5. If the measuring part 101b is pressed while extending obliquely relative to the skirt guard 5, the contact surface will slip, making accurate measurement difficult even if the anti-slip cap 103 is attached.

[0041] When inspecting the operation of the safety switch 6, a reference pressure value (e.g., a pressure of 120 to 180 N) that activates the safety switch 6 must be applied to the measurement point P on the surface of the skirt guard 5. This pressure is quite strong for an operator to apply while holding the measuring jig 100 by hand. If the difference in height H (see Figure 4) between the bottom of the anti-slip cap 103 (measurement unit 101b) and the bottom of the main body 101a in the Z direction is large, it may be difficult to apply such a strong force to the measurement point P. For example, if the safety switch 6 is positioned very close to the step 1 in the Z direction, the distance between the step 1 and the safety switch 6 in the Z direction may be smaller than the difference in height H between the bottom of the anti-slip cap 103 (measurement unit 101b) and the bottom of the main body 101a in the Z direction. In this case, unless the step 1 is removed from the escalator, it will be impossible to apply the measurement unit 101b perpendicularly to the surface of the measurement point P on the skirt guard 5 and perform accurate measurements. If the measuring part 101b were to press the skirt guard 5 while extending obliquely, it would be difficult to apply such a large force to the skirt guard 5, and it would also be difficult to perform accurate measurements.

[0042] On the other hand, with the measuring jig 10 according to the present disclosure described above, it is possible to apply pressure to the skirt guard 5 using the so-called principle of leverage by utilizing the measuring piece 13. This eliminates the need for the conventional procedure of pressing the measuring jig 100 toward the safety switch 6 (toward the skirt guard 5) from the X direction in front of the area of ​​the skirt guard 5 facing the safety switch 6, and eliminates the need to remove the step 1. This makes it possible to improve the efficiency of the measurement operation.

[0043] In the measuring jig 10, the measuring piece 13 includes a first measuring piece portion 13a, a second measuring piece portion 13b, and a boundary portion 13c. The second measuring piece portion 13b has a longer extension dimension than the first measuring piece portion 13a. The boundary portion 13c is bent. The second measuring piece portion 13b is connected to the first measuring piece portion 13a via the boundary portion 13c. The first measuring piece portion 13a has a first portion 13aa. The second measuring piece portion 13b has a second portion 13ba. As shown in FIG. 3, the first measuring piece portion 13a has a first region 13aaa, which is sandwiched and fixed between the gap adjusting member 12 and the skirt guard 5 in the first portion 13aa, as a fulcrum. The first region 13aaa is, for example, the region of the first portion 13aa that comes into contact with the gap adjusting member 12 and is closest to the second portion 13ba. The point of application of stress is the second region 13aab of the first measuring piece 13a, which is located on the opposite side of the boundary 13c from the first region 13aaa. When stress is applied to the second portion 13ba of the second measuring piece 13b, the second region 13aab of the first measuring piece 13a can press the skirt guard 5 in the opposite direction from the gap adjusting member 12 in the sliding direction.

[0044] In this case, due to the so-called principle of leverage, the second region 13aab of the measuring piece 13 functions as a point of application. As a result, pressure can be easily applied to the skirt guard 5.

[0045] The measuring jig 10 further includes a pressure display unit 17. The pressure display unit 17 displays the pressure with which the second region 13aab of the first measuring piece portion 13a presses against the skirt guard 5. In this case, the operating pressure of the safety switch 6 can be easily confirmed by the pressure display unit 17.

[0046] The measuring jig 10 further includes a detection unit 16. The detection unit 16 detects the stress applied to the second portion 13ba. The pressure displayed on the pressure display unit 17 is determined based on the measured value of the stress detected by the detection unit 16. In this case, the operating pressure of the safety switch 6 can be easily confirmed.

[0047] The measuring jig 10 further includes a gap adjustment handle 14 as an operating mechanism. The gap adjustment handle 14 is attached to the step fixing member 11. The gap adjustment handle 14 can adjust the position of the gap adjusting member 12 in the sliding direction. In this case, the position of the gap adjusting member 12 can be easily adjusted using the gap adjustment handle 14.

[0048] In the measuring jig 10, the step fixing member 11 includes a fitting portion 11a as a protrusion. The fitting portion 11a can be inserted into a groove 1c formed in the surface of the step 1. In this case, the fitting portion 11a is pressed against the inner circumferential surface of the groove 1c of the step 1, thereby fixing the step fixing member 11 of the measuring jig 10 to the step 1.

[0049] Furthermore, the step fixing member 11 with the fitting portion 11a allows the measurement work to be performed while the entire measuring jig 10 is fixed on the step 1. This eliminates the need for the worker to apply a large force while holding the measuring jig 10 in his / her hand. This makes it easier to apply a large force in a direction perpendicular to the skirt guard 5.

[0050] (Addendum) Various aspects of the present disclosure are summarized below as appendices. (Appendix 1) A measuring jig for measuring the operating pressure of a passenger conveyor skirt guard safety switch, a step fixing member that can be fixed on a surface of a step of the passenger conveyor at a position adjacent to a skirt guard of the passenger conveyor; a gap adjustment member that is attached to the step fixing member and is slidable in a direction along the surface of the step; a measuring piece that can be clamped and restrained between one end of the gap adjustment member in the sliding direction and the skirt guard, the measuring piece includes a first portion that can be constrained by the end portion of the gap adjusting member, and a second portion that is an end portion spaced apart from the first portion, A measuring jig in which, when the first portion is sandwiched and restrained between the gap adjustment member and the skirt guard, stress is applied to the second portion in a direction away from the skirt guard, so that at least a portion of the measuring piece can press the skirt guard toward the opposite side to the gap adjustment member in the sliding direction. (Appendix 2) the test piece includes a first test piece portion, a second test piece portion having an extension dimension longer than that of the first test piece portion, and a bent boundary portion; the second measurement piece portion is connected to the first measurement piece portion via the boundary portion; the first measuring piece portion has the first portion, the second measuring piece portion has the second portion, a first region of the first portion that is sandwiched and fixed between the gap adjustment member and the skirt guard serves as a fulcrum; a second region of the first measuring piece portion that is located on the opposite side of the boundary portion as viewed from the first region as a point of application; A measuring jig as described in Appendix 1, wherein the stress is applied to the second portion of the second measuring piece, so that the second region of the first measuring piece can press the skirt guard toward the opposite side of the gap adjustment member in the sliding direction. (Appendix 3) The measuring tool described in Appendix 2 further comprises a pressure display unit that displays the pressure with which the second region of the first measuring piece portion presses against the skirt guard. (Appendix 4) a detector for detecting the stress applied to the second portion; 4. The measuring tool according to claim 3, wherein the pressure displayed on the pressure display unit is determined based on the measurement value of the stress detected by the detection unit. (Appendix 5) 5. The measuring jig according to claim 1, further comprising an operating mechanism that is installed on the step fixing member and that can adjust the position of the gap adjusting member in the sliding direction. (Appendix 6) 6. The measuring jig according to claim 1, wherein the step fixing member includes a protrusion that can be inserted into a groove formed on the surface of the step.

[0051] The embodiments disclosed herein should be considered to be illustrative in all respects and not restrictive. Unless there is a contradiction, at least two of the embodiments disclosed herein may be combined. The basic scope of the present disclosure is defined by the claims, not the above description, and is intended to include all modifications within the meaning and scope equivalent to the claims. [Explanation of symbols]

[0052] 1 step, 1a floor board base portion, 1b comb portion, 1c groove, 2 balustrade, 3 upper floor, 4 lower floor, 5 skirt guard, 6 safety switch, 6a mounting plate, 6b pressure fine adjustment piece, 7 mounting angle, 8 bolt, 10,100 measuring jig, 11 step fixing member, 11a fitting portion, 12 gap adjustment member, 12a end portion, 13 measuring piece, 13a first measuring piece portion, 13aa first portion, 13aaa first region, 13aab second region, 13b second measuring piece portion, 13ba second portion, 13c boundary portion, 14 gap adjustment handle, 15 gear, 16 detection portion, 17,102 pressure display portion, 101 tension gauge, 101a main body portion, 101b measuring portion, 102a scale, 102b Pressure indicator needle, 103 anti-slip cap, F pressing force, F1, F2, M, R arrows, H step, II area, L1, L2 length, P measurement point.

Claims

1. A measuring jig for measuring the operating pressure of a passenger conveyor skirt guard safety switch, a step fixing member that can be fixed on a surface of a step of the passenger conveyor at a position adjacent to a skirt guard of the passenger conveyor; a gap adjusting member that is attached to the step fixing member and is slidable in a direction along the surface of the step; a measuring piece that can be clamped and restrained between one end of the gap adjustment member in the sliding direction and the skirt guard, the measuring piece includes a first portion that can be constrained by the end portion of the gap adjusting member, and a second portion that is an end portion spaced apart from the first portion, A measuring jig in which, while the first portion is sandwiched and restrained between the gap adjustment member and the skirt guard, stress is applied to the second portion in a direction away from the skirt guard, so that at least a portion of the measuring piece can press the skirt guard toward the opposite side to the gap adjustment member in the sliding direction.

2. the test piece includes a first test piece portion, a second test piece portion having an extension dimension longer than that of the first test piece portion, and a bent boundary portion; the second test piece portion is connected to the first test piece portion via the boundary portion; the first measuring piece portion has the first portion, the second measuring piece portion has the second portion, a first region of the first portion that is sandwiched and fixed between the gap adjustment member and the skirt guard serves as a fulcrum; a second region of the first measuring piece portion located on the opposite side of the boundary portion as viewed from the first region as a point of application; 2. The measuring jig of claim 1, wherein the stress is applied to the second portion of the second measuring piece, so that the second region of the first measuring piece can press the skirt guard toward the opposite side of the gap adjustment member in the sliding direction.

3. The measuring tool according to claim 2 , further comprising a pressure indicator that indicates the pressure with which the second region of the first measuring piece portion presses against the skirt guard.

4. a detector for detecting the stress applied to the second portion; The measuring tool according to claim 3 , wherein the pressure displayed on the pressure display unit is determined based on the measured value of the stress detected by the detection unit.

5. The measuring tool according to claim 1 , further comprising an operation mechanism that is installed on the step fixing member and that is capable of adjusting the position of the gap adjusting member in the sliding direction.

6. The measuring jig according to claim 1 , wherein the step fixing member includes a protrusion that can be inserted into a groove formed in a surface of the step.

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