WO2024084670A1 - Brake pad insertion/removal aid and brake pad insertion/removal method for hoist brake device - Google Patents

Brake pad insertion/removal aid and brake pad insertion/removal method for hoist brake device Download PDF

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Publication number
WO2024084670A1
WO2024084670A1 PCT/JP2022/039188 JP2022039188W WO2024084670A1 WO 2024084670 A1 WO2024084670 A1 WO 2024084670A1 JP 2022039188 W JP2022039188 W JP 2022039188W WO 2024084670 A1 WO2024084670 A1 WO 2024084670A1
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WIPO (PCT)
Prior art keywords
brake pad
long
extraction
brake
screws
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PCT/JP2022/039188
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French (fr)
Japanese (ja)
Inventor
伸幸 吉野
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三菱電機ビルソリューションズ株式会社
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Priority to PCT/JP2022/039188 priority Critical patent/WO2024084670A1/en
Publication of WO2024084670A1 publication Critical patent/WO2024084670A1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators

Definitions

  • This disclosure relates to technology for removing or inserting brake pads in a brake device mounted on an elevator hoist.
  • Patent Document 1 discloses a jig that allows the insertion and removal of brake pads.
  • This jig includes a body of a flanged grooved cross-section member, a long screw, and a nut.
  • the tip of the long screw is connected to the brake pad.
  • the flange of the body is placed against the outer surface of the casing, and the nut screwed onto the long screw is rotated to pull out the brake pad from inside the brake device.
  • Patent Document 1 requires that a pair of brake pads inserted into the brake device be pulled out one by one in sequence. This repeated pulling out work can be a burden for the worker.
  • the present disclosure has been made to solve the problems described above, and aims to provide a brake pad insertion/removal aid and a brake pad insertion/removal method that assist in the work of pulling out or inserting the brake pads of a brake device mounted on a hoist.
  • the present disclosure applies to a brake pad insertion/removal aid used when removing or inserting a pair of brake pads installed in an internal space through an opening communicating with the internal space of a brake device of an elevator hoist.
  • the pair of brake pads each have a screw hole on the front surface facing the opening.
  • the brake pad insertion/removal aid includes a main body portion in which a first flat surface portion and a second flat surface portion are connected to form an L-shape in a cross section perpendicular to the longitudinal direction, two long extraction screws that are screwed into the screw hole portions, and two extraction nuts that are screwed into the two long screws.
  • the first flat surface portion has two through holes formed with a diameter larger than the outer diameter of the long extraction screws.
  • each of the two long extraction screws is configured so that one end is screwed into each of the screw hole portions when the long extraction screws are inserted through each of the two through holes, and the two extraction nuts are configured so that the other end of each of the two long extraction screws is screwed between the main body portion.
  • the present disclosure also applies to a brake pad insertion/removal method for extracting a pair of brake pads installed in an internal space of an elevator hoisting machine from an opening communicating with the internal space of the brake device using the above brake pad insertion/removal aid.
  • the brake pad insertion/removal method includes a step of screwing each of the two extraction nuts onto each of the two extraction long screws, a first installation step of placing the main body on the outer surface side of the opening, passing each of the two extraction long screws through each of the two through holes, and screwing one end into each of the screw hole parts, and a step of tightening the two extraction nuts.
  • the second flat surface has a pair of insertion screw holes arranged side by side in the longitudinal direction.
  • the brake pad insertion/removal aid has a pair of long insertion screws that have heads at one end and are screwed into the insertion screw holes at the other end.
  • the main body is positioned in a position in the internal space where the second flat surface contacts the inner surface of the opening and the other ends of the pair of long insertion screws screwed into the insertion screw holes contact the front surface of the brake pad.
  • a brake pad insertion/removal method for inserting the brake pad to the mounting position from an opening communicating with the internal space of the brake device of the elevator hoisting machine using the brake pad insertion/removal aid includes a step of positioning the brake pad in a position in the internal space before the mounting position in the insertion direction, a second installation step of positioning the main body in a position in the internal space where the second flat surface contacts the inner surface of the opening and the other ends of the pair of long insertion screws screwed into the insertion screw holes contact the front surface of the brake pad, and a step of tightening the pair of long insertion screws.
  • the technology of the brake pad insertion/removal aid disclosed herein allows a pair of left and right brake pads to be pulled out at once with little force, reducing the burden on the worker.
  • FIG. 1 is a perspective view showing an external configuration of a brake device to which an insertion/removal assisting tool according to an embodiment is applied;
  • FIG. 2 is a view of the brake device as seen from the front side of the opening.
  • 10A and 10B are diagrams for explaining the component configuration of a brake pad insertion/removal auxiliary tool.
  • 11 is a perspective view of a main body of the insertion/removal assisting tool as viewed from the back side of a first flat portion.
  • FIG. 11 is a perspective view of a main body of the insertion/removal assisting tool as viewed from the front side of a second flat portion.
  • FIG. 13A to 13C are diagrams for explaining the process of attaching a brake pad insertion/removal auxiliary tool in the removal operation.
  • FIG. 13A to 13C are diagrams for explaining the process of attaching a brake pad insertion/removal auxiliary tool in the removal operation.
  • 1 is a schematic diagram showing the brake pad insertion/removal aid attached in the attachment process, viewed from above with the case body cut along a horizontal plane.
  • FIG. 11A to 11C are diagrams for explaining the brake pad pulling-out process in the pulling-out operation.
  • 11A and 11B are diagrams for explaining a process of attaching a brake pad insertion/removal aid in the brake pad insertion work.
  • 1 is a schematic diagram of a brake pad insertion/removal aid attached in an attachment process, viewed from the left side with the case body cut along a vertical plane parallel to the insertion direction.
  • Embodiment 1 External Configuration of the Brake Device Fig. 1 is a perspective view showing the external configuration of a brake device to which an insertion/removal assisting tool according to an embodiment is applied.
  • the brake device 10 shown in this figure is a disc brake device mounted on an elevator hoist.
  • the brake device 10 includes a case body 12 and a brake disc 14.
  • An internal space 16 is formed in the case body 12.
  • the internal space 16 communicates with an external space through a rectangular opening 18.
  • FIG. 2 is a view of the brake device as seen from the front side of the opening.
  • a pair of brake pads 20, 22 are inserted into the internal space 16 of the brake device 10 on both the left and right sides of the brake disc 14.
  • several other parts are attached to the internal space 16 of the brake device 10, but are not shown in FIG. 2.
  • the pair of brake pads 20, 22 are configured so that they can be pulled out and inserted through the opening 18.
  • the direction in which the pair of brake pads 20, 22 are pulled out from the brake device 10 is referred to as the "pulling out direction", and the opposite direction to the pulling out direction is referred to as the "insertion direction”.
  • the up-down and left-right directions when the opening 18 of the brake device 10 is viewed from the front as in Figure 2 are defined as the up-down and left-right directions of the brake device 10.
  • the front portions 20a, 22a of the brake pads 20, 22 facing the openings are provided with screw holes 201, 221 for pulling out, respectively.
  • the screw diameter of the screw holes 201, 221 is, for example, M8.
  • the brake device 10 of an elevator hoist is periodically inspected by an operator.
  • Replacement parts during inspection may include, for example, a pair of brake pads 20, 22.
  • a bolt is generally screwed into the screw hole portions 201, 221 and the brake pads are pulled out together with the bolt.
  • the operation of pulling out the brake pads 20, 22 that are tightly fitted together may be difficult and may be a heavy task for the operator.
  • the brake pad insertion/removal aid of this embodiment is a tool that is used during maintenance work on the brake device 10 and assists in the work of pulling out the pair of brake pads 20, 22.
  • Figure 3 is a diagram for explaining the component configuration of the brake pad insertion/removal aid.
  • the insertion/removal aid includes a main body 30, two long extraction screws 32, two extraction nuts 34, two flat washers 36, two long insertion screws 38, and four nuts 40.
  • the main body 30 is an angle bar with an L-shaped cross section, in which the first planar portion 301 and the second planar portion 302 are connected to form an L-shape in a cross section perpendicular to the longitudinal direction.
  • the surface on the side where the planar angle between the first planar portion 301 and the second planar portion 302 is 90 degrees is defined as the back surface
  • the surface on the side where the planar angle is 270 degrees is defined as the front surface.
  • FIG. 4 is a perspective view of the main body of the insertion/removal aid as viewed from the back side of the first flat portion.
  • the pitch between the two through holes 303 is the same as the pitch between the screw holes 201, 221 of the pair of brake pads 20, 22 attached to the brake device 10.
  • the two through holes 303 are formed at positions 30 mm away from the longitudinal center of the first flat portion 301 toward each end.
  • the diameter of the two through holes 303 is larger than the outer diameter of the extraction screw 32.
  • the thread diameter of the extraction screw 32 is M8, the hole diameter ⁇ of the two through holes 303 is set to 10 mm to 12 mm.
  • the back side of the first flat surface portion 301 is provided with a guide label portion 309 for guidance when pulling out the brake pads 20, 22.
  • the guide label portion 309 here is marked with the notation "pad removal side” and an arrow mark indicating the direction from the base end side to the tip end side in the short direction of the first flat surface portion 301.
  • the guide label portion 309 may be configured as a single label.
  • a chamfered portion 310 is formed by chamfering the corners at both ends of the first flat surface portion 301 in the longitudinal direction. There are no limitations on the shape and size of the chamfered portion 310.
  • the second flat surface portion 302 is formed with a positioning through hole 304 and two insertion screw holes 305.
  • FIG. 5 is an oblique view of the main body of the insertion/removal aid viewed from the front side of the second flat surface portion.
  • the positioning through hole 304 is formed in the longitudinal center of the second flat surface portion 302.
  • the hole diameter of the positioning through hole 304 is larger than the outer diameter of the extraction screw 32. For example, if the thread diameter of the extraction screw 32 is M8, the hole diameter ⁇ of the positioning through hole 304 is 10 mm. Note that the positioning through hole 304 is not a required component.
  • the two insertion screw holes 305 are formed on both sides of the positioning through hole 304 in the longitudinal direction.
  • the two insertion screw holes 305 are formed, for example, by forming a through hole in the second flat surface portion 302 and welding a nut to the through hole position from the front side.
  • the thread diameter of the insertion screw hole 305 is a thread diameter that can be screwed into the long insertion screw 38.
  • the pitch between the two insertion screw holes 305 is set to a width smaller than the vertical width dimension of the brake pad 20 attached to the brake device 10.
  • the two insertion screw holes 305 are formed at positions 40 mm apart from the center in the longitudinal direction toward each end.
  • the surface side of the second flat portion 302 is provided with guide labels 306, 308 for guiding the insertion of the brake pads 20, 22.
  • the guide label 306 is provided at a position above the upper insertion screw hole 305 when the second flat portion 302 is arranged vertically with the first flat portion 301 on the right side.
  • the guide label 306 here is provided with a notation "pad insertion side R" and an arrow mark indicating the direction toward the tip end of the longitudinal direction of the second flat portion 302.
  • the guide label 308 is provided at a position above the upper insertion screw hole 305 when the second flat portion 302 is arranged vertically with the first flat portion 301 on the left side.
  • the guide label 308 here is provided with a notation "pad insertion side L" and an arrow mark indicating the direction toward the tip end of the longitudinal direction of the second flat portion 302.
  • a notation "pad insertion side L" and an arrow mark indicating the direction toward the tip end of the longitudinal direction of the second flat portion 302.
  • each of the guide label sections 306, 308 may be configured as a single label, or may be divided into multiple labels.
  • the corners at both ends of the second flat surface section 302 in the longitudinal direction are each formed with a chamfered portion 312. There are no limitations on the shape and size of the chamfered portion 312.
  • the two long extraction screws 32 are configured to be screwable into the screw holes 201, 221 of the pair of brake pads 20, 22 attached to the brake device 10.
  • the long extraction screws 32 are, for example, bolts with hexagonal heads. Alternatively, the long extraction screws 32 may be fully threaded bolts without heads.
  • the long extraction screws 32 have a thread diameter that allows them to pass through the through holes 303 of the main body 30. When the hole diameter ⁇ of the through hole 303 is 10 mm, the thread diameter of the long extraction screws 32 is, for example, M8.
  • the long extraction screws 32 have a length that protrudes from the opening 18 toward the outer surface of the case main body 12 when screwed into the screw holes 201, 221 of the pair of brake pads 20, 22 attached to the brake device 10.
  • the two extraction nuts 34 are nuts that can be screwed onto the two long extraction screws 32, respectively.
  • the two flat washers 36 are washers that are passed through the two long extraction screws 32, respectively.
  • the two long extraction screws 32 are passed through the two through holes 303 of the main body 30 from the back side, with the two extraction nuts 34 screwed onto each of them and the two flat washers 36 passed through each of them.
  • the two long insertion screws 38 are, for example, fully threaded bolts without a head.
  • the two long insertion screws 38 are configured so as to be able to be screwed into each of the two insertion screw holes 305 of the main body 30.
  • a pair of nuts 40 are screwed closely to one end of the long insertion screw 38.
  • the pair of nuts 40 are fixed to the long insertion screw 38 unrotatably by the so-called double nut action.
  • the pair of nuts 40 function as the head of the long insertion screw 38.
  • the long insertion screw 38 may be a bolt with a head. In this case, the pair of nuts 40 is not necessary.
  • the long insertion screw 38 has a thread diameter that allows it to be passed through the insertion screw hole 305 of the main body 30. If the thread diameter of the insertion screw hole 305 is M10, the thread diameter of the extraction screw 32 is M10.
  • the long insertion screw 38 has a length that protrudes from the opening 18 toward the outer surface of the case main body 12 of the brake device 10 when the brake pads 20, 22 are inserted into the brake device 10 by the insertion operation described below.
  • Preparation Process Process for Removing Shoe Holders, etc. As a preliminary preparation, an operator removes the shoe holders, etc. from the brake device 10. This causes the front portions 20a, 22a of the pair of brake pads 20, 22 to be exposed.
  • FIGs 6 and 7 are diagrams for explaining the installation step of the brake pad insertion/removal aid in the removal work.
  • Figure 8 is a schematic diagram of the brake pad insertion/removal aid installed in the installation step, cut in a horizontal plane of the case body and viewed from above.
  • the worker screws the extraction nuts 34 onto each of the two extraction long screws 32 and passes flat washers 36 through them.
  • the worker holds the main body 30 on the outside of the case body 12 with the longitudinal direction of the main body 30 in the left-right direction and with the arrow mark of the guide label part 309 on the back side of the first flat part 301 facing upward.
  • the main body 30 is held horizontally and with the second flat part 302 positioned below the first flat part 301. Then, the worker passes the long extraction screw 32 through the through hole 303 on the right side of the main body 30 from the back surface side, and screws it into the screw hole 201 of the brake pad 20. Similarly, the worker passes the other long extraction screw 32 through the through hole 303 on the left side of the main body 30 from the back surface side, and screws it into the screw hole 221 of the brake pad 22.
  • the main body 30 is configured so that the total length L1 in the longitudinal direction is larger than the lateral opening width W1, which is the width of the opening 18 in the left-right direction. Therefore, both ends on the front surface side of the first flat portion 301 come into contact with the outer surface 121 of the case main body 12.
  • FIG. 9 is a diagram for explaining the extraction step of the brake pads in the extraction work.
  • the worker prepares a spanner wrench 50 that matches the size of the extraction nuts 34, and tightens the left and right extraction nuts 34 evenly with the spanner wrench 50.
  • the spanner wrench 50 There is no limitation on the spanner wrench 50 used.
  • Figure 9 illustrates the use of a ratchet-type box wrench as the spanner wrench 50.
  • Fig. 10 is a diagram for explaining the installation step of the brake pad insertion/removal aid in the brake pad insertion work.
  • Fig. 11 is a schematic diagram of the brake pad insertion/removal aid installed in the installation step, cut by a vertical plane parallel to the insertion direction of the case body, and viewed from the left side.
  • the worker holds the main body 30 in the internal space 16 of the case body 12 with the arrow mark of the guide label part 306 on the front side of the second flat part 302 facing upward. As a result, the main body 30 is held so that the first flat part 301 is located on the outer surface side of the brake pad 20.
  • the main body 30 is configured such that the overall length L1 in the longitudinal direction is greater than the vertical opening width H1, which is the vertical width of the opening 18. Therefore, both ends on the front surface side of the second flat portion 302 contact the inner surface 122 of the case main body 12.
  • the brake pad insertion/removal auxiliary tool described above provides the following functions and effects.
  • the main body 30 has a shape in which the first planar portion 301 and the second planar portion 302 are connected to form an L-shape in a cross section perpendicular to the longitudinal direction. This shape ensures strength with a simple structure.
  • the main body 30 is configured so that the pitch between the two through holes 303 is the same as the pitch between the screw holes 201, 221 of the pair of brake pads 20, 22 attached to the brake device 10. With this configuration, when the two long extraction screws 32 are screwed into the screw holes 201, 221, respectively, the two long extraction screws 32 become parallel, so that it is possible to prevent the main body 30 from shifting in position when the extraction nut 34 is tightened.
  • the main body 30 is configured so that the total length L1 in the longitudinal direction is greater than the lateral opening width W1 of the opening 18. With this configuration, when the main body 30 is placed in front of the opening 18 with its longitudinal direction aligned with the left-right direction of the opening during the operation of removing the brake pads 20, 22, both ends of the main body 30 can be reliably brought into contact with the outer surface 121 of the case body 12.
  • the main body 30 is also configured so that the overall length of the first planar portion 301 in the short direction is narrower than the vertical height of the opening 18. With this configuration, when the main body 30 is oriented so that its longitudinal direction coincides with the left-right direction of the opening during the work of removing the brake pads 20, 22, the work can be carried out while visually checking the internal space 16 through the opening 18.
  • the main body 30 is configured so that the total length L1 in the longitudinal direction is greater than the vertical opening width H1 of the opening 18.
  • the main body 30 is configured so that the overall length of the second planar portion 302 in the short direction is narrower than the width of the opening 18 in the left-right direction. With this configuration, the main body 30 can be positioned in the internal space 16 during the insertion of the brake pads 20, 22.
  • Each of the two long extraction screws 32 has a length such that when one end is screwed into the threaded holes 201, 221 of the brake pads 20, 22 attached to the brake device 10, the other end protrudes from the opening 18. With this configuration, it is possible to pass the two long extraction screws 32 through the through holes 303 of the main body 30, and then screw the extraction nuts 34 onto the long extraction screws 32 and tighten them.
  • Each of the two long extraction screws 32 has a flat washer passed through the gap between the main body 30 and the extraction nut 34. This configuration makes it easy to tighten the extraction nut 34.
  • the main body 30 When pulling out the brake pads 20, 22, the main body 30 is oriented so that the second flat surface 302 is below the first flat surface 301. This configuration allows the worker to tighten the pull-out nut 34 while visually checking the pull-out nut 34. In addition, the worker can operate the spanner wrench 50 above the main body 30, improving work efficiency.
  • the main body 30 has chamfered corners 310, 312 at the leading edge of the short side of the first flat surface 301 and at the leading edge of the short side of the second flat surface 302. This configuration makes it easier to insert the main body 30 into a narrow space, for example when installing the main body 30 in the internal space 16. It also prevents the corners from getting caught on the case main body 12 or the like and causing scratches. It is also effective in preventing injuries to workers.
  • the long extraction screw 32 is passed through the positioning through hole 304 and then screwed into the screw hole 201 of the brake pad 20.
  • This configuration makes it easy to position the main body 30 relative to the brake pad 20. The same applies to the insertion of the brake pad 22.
  • the two insertion screw holes 305 are formed in positions where the tips of the pair of insertion long screws 38 come into contact with the front surface 20a of the brake pad 20 when the pair of insertion long screws 38 are screwed together. With this configuration, the brake pad 20 can be inserted to the correct position by evenly tightening the pair of insertion long screws 38.
  • a pair of nuts 40 are fixed to one end of the long insertion screw 38 in the form of a so-called double nut.
  • the nut 40 on the side of the main body 30 functions as a restricting member that prevents the socket wrench hung on the nut 40 on the end side from shifting in the insertion direction. This improves the work efficiency of the worker who holds the nuts 40.
  • the main body 30 When inserting the brake pad 20, the main body 30 is positioned so that the first flat surface 301 is located to the right of the outer surface of the brake pad 20. When inserting the brake pad 22, the main body 30 is positioned so that the first flat surface 301 is located to the right of the outer surface of the brake pad 22. This positioning allows the worker to easily view the internal space 16 from the opening 18, improving workability.

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Abstract

This brake pad insertion/removal aid comprises: a body part in which a first planar part and a second planar part are connected so as to form an L shape in a cross-section orthogonal to the lengthwise direction; two long screws for extraction which screw together with respective screw hole parts; and two nuts for extraction which respectively screw together with the two long screws. The first planar part has two through holes which are formed to have a greater diameter than the outer diameter of the long screws for extraction. In an operation to extract a pair of brake pads, one end of each of the two long screws for extraction screws together with a respective screw hole part of one of the pair of brake pads in a state where the long screws for extraction respectively pass through the two through holes. The two nuts for extraction screw between the body part and respective other ends of the two long screws for extraction.

Description

巻上機ブレーキ装置のブレーキパッド挿抜補助具及びブレーキパッド挿抜方法Brake pad insertion/removal aid and brake pad insertion/removal method for hoist brake device
　本開示は、エレベーター巻上機に搭載されているブレーキ装置のブレーキパッドを引き抜く又は挿入するための技術に関する。 This disclosure relates to technology for removing or inserting brake pads in a brake device mounted on an elevator hoist.
　特許文献１は、ブレーキパッドの抜き差しを可能とする治具を開示する。この治具は、つば付き溝形断面部材の本体と、長ねじと、ナットと、を含む。長ねじは、先端がブレーキパッドに接続される。本体のつばをケーシングの外面に当て、長ねじにねじ込んだナットを回転させて、ブレーキパッドをブレーキ装置の内部から引き抜く。 Patent Document 1 discloses a jig that allows the insertion and removal of brake pads. This jig includes a body of a flanged grooved cross-section member, a long screw, and a nut. The tip of the long screw is connected to the brake pad. The flange of the body is placed against the outer surface of the casing, and the nut screwed onto the long screw is rotated to pull out the brake pad from inside the brake device.
日本特開２０１８－１６８８６６号公報Japanese Patent Publication No. 2018-168866
　特許文献１の治具は、ブレーキ装置に挿入されている一対のブレーキパッドを１枚ずつ順に引き抜く必要がある。このような繰り返しの引き抜き作業は、作業員にとって負担となるおそれがある。 The jig in Patent Document 1 requires that a pair of brake pads inserted into the brake device be pulled out one by one in sequence. This repeated pulling out work can be a burden for the worker.
　本開示は、上述のような課題を解決するためになされたもので、巻上機に搭載されるブレーキ装置のブレーキパッドを引き抜く又は挿入する作業を補助するブレーキパッド挿抜補助具及びブレーキパッド挿抜方法を提供することを目的とする。 The present disclosure has been made to solve the problems described above, and aims to provide a brake pad insertion/removal aid and a brake pad insertion/removal method that assist in the work of pulling out or inserting the brake pads of a brake device mounted on a hoist.
　本開示は、エレベーター巻上機のブレーキ装置の内部空間に連通する開口部から、内部空間に設置された一対のブレーキパッドを引き抜く又は挿入する際に利用されるブレーキパッド挿抜補助具に適用される。一対のブレーキパッドは、開口部に面する正面部に、それぞれネジ穴部を備える。ブレーキパッド挿抜補助具は、第一平面部と第二平面部とが、長手方向に直交する断面においてＬ型になるように接続された本体部と、ネジ穴部のそれぞれに螺合される２本の引き抜き用長ネジと、２本の長ネジのそれぞれに螺合される２つの引き抜き用ナットと、を備える。第一平面部は、引き抜き用長ネジの外径よりも大径に形成された２つの貫通孔を有する。一対のブレーキパッドの引き抜き作業において、２本の引き抜き用長ネジのそれぞれは、２つの貫通孔のそれぞれに貫通させた状態において、一端がネジ穴部のそれぞれに螺合されるように構成され、２つの引き抜き用ナットは、２本の引き抜き用長ネジのそれぞれの他端と本体部との間にそれぞれ螺合されるように構成される。 The present disclosure applies to a brake pad insertion/removal aid used when removing or inserting a pair of brake pads installed in an internal space through an opening communicating with the internal space of a brake device of an elevator hoist. The pair of brake pads each have a screw hole on the front surface facing the opening. The brake pad insertion/removal aid includes a main body portion in which a first flat surface portion and a second flat surface portion are connected to form an L-shape in a cross section perpendicular to the longitudinal direction, two long extraction screws that are screwed into the screw hole portions, and two extraction nuts that are screwed into the two long screws. The first flat surface portion has two through holes formed with a diameter larger than the outer diameter of the long extraction screws. In the operation of removing the pair of brake pads, each of the two long extraction screws is configured so that one end is screwed into each of the screw hole portions when the long extraction screws are inserted through each of the two through holes, and the two extraction nuts are configured so that the other end of each of the two long extraction screws is screwed between the main body portion.
　また、本開示は、上記のブレーキパッド挿抜補助具を用いて、エレベーター巻上機のブレーキ装置の内部空間に連通する開口部から、内部空間に設置された一対のブレーキパッドを引き抜くブレーキパッド挿抜方法に適用される。ブレーキパッド挿抜方法は、２つの引き抜き用ナットのそれぞれを２本の引き抜き用長ネジのそれぞれに螺合させる工程と、本体部を開口部の外側面の側に配置し、２本の引き抜き用長ネジのそれぞれを、２つの貫通孔のそれぞれに貫通させ、一端をネジ穴部のそれぞれに螺合させる第一設置工程と、２つの引き抜き用ナットを締め付ける工程と、を備える。 The present disclosure also applies to a brake pad insertion/removal method for extracting a pair of brake pads installed in an internal space of an elevator hoisting machine from an opening communicating with the internal space of the brake device using the above brake pad insertion/removal aid. The brake pad insertion/removal method includes a step of screwing each of the two extraction nuts onto each of the two extraction long screws, a first installation step of placing the main body on the outer surface side of the opening, passing each of the two extraction long screws through each of the two through holes, and screwing one end into each of the screw hole parts, and a step of tightening the two extraction nuts.
　また、上記のブレーキパッド挿抜補助具において、第二平面部は、長手方向に並んで設けられた一対の挿入用ネジ穴部を備える。ブレーキパッド挿抜補助具は、一端側に頭部を有し、他端側が挿入用ネジ穴部に螺合される一対の挿入用長ネジを備える。ブレーキパッドの挿入作業において、本体部は、内部空間において、第二平面部が開口部の内側面に接触し、挿入用ネジ穴部に螺合された一対の挿入用長ネジの他端側がブレーキパッドの正面部に接触する位置に配置される。当該ブレーキパッド挿抜補助具を用いて、エレベーター巻上機のブレーキ装置の内部空間に連通する開口部から、ブレーキパッドを装着位置へ挿入するブレーキパッド挿抜方法は、ブレーキパッドを内部空間における装着位置から挿入方向手前の位置に配置する工程と、内部空間において、本体部を第二平面部が開口部の内側面に接触し且つ挿入用ネジ穴部に螺合された一対の挿入用長ネジの他端側がブレーキパッドの正面部に接触する位置に配置する第二設置工程と、一対の挿入用長ネジを締め付ける工程と、を備える。 　In the brake pad insertion/removal aid, the second flat surface has a pair of insertion screw holes arranged side by side in the longitudinal direction. The brake pad insertion/removal aid has a pair of long insertion screws that have heads at one end and are screwed into the insertion screw holes at the other end. In the brake pad insertion operation, the main body is positioned in a position in the internal space where the second flat surface contacts the inner surface of the opening and the other ends of the pair of long insertion screws screwed into the insertion screw holes contact the front surface of the brake pad. A brake pad insertion/removal method for inserting the brake pad to the mounting position from an opening communicating with the internal space of the brake device of the elevator hoisting machine using the brake pad insertion/removal aid includes a step of positioning the brake pad in a position in the internal space before the mounting position in the insertion direction, a second installation step of positioning the main body in a position in the internal space where the second flat surface contacts the inner surface of the opening and the other ends of the pair of long insertion screws screwed into the insertion screw holes contact the front surface of the brake pad, and a step of tightening the pair of long insertion screws.
　本開示のブレーキパッド挿抜補助具の技術によれば、左右一対のブレーキパッドを小さな力で一度に引き抜くことができる。これにより、作業員の負担が軽減される。 The technology of the brake pad insertion/removal aid disclosed herein allows a pair of left and right brake pads to be pulled out at once with little force, reducing the burden on the worker.
実施の形態における挿抜補助具が適用されるブレーキ装置の外観構成を示す斜視図である。1 is a perspective view showing an external configuration of a brake device to which an insertion/removal assisting tool according to an embodiment is applied; ブレーキ装置を開口部の正面側から見た図である。FIG. 2 is a view of the brake device as seen from the front side of the opening. ブレーキパッド挿抜補助具の部品構成を説明するための図である。10A and 10B are diagrams for explaining the component configuration of a brake pad insertion/removal auxiliary tool. 挿抜補助具の本体部を第一平面部の裏側から見た斜視図である。11 is a perspective view of a main body of the insertion/removal assisting tool as viewed from the back side of a first flat portion. FIG. 挿抜補助具の本体部を第二平面部の表側から見た斜視図である。11 is a perspective view of a main body of the insertion/removal assisting tool as viewed from the front side of a second flat portion. FIG. 引き抜き作業におけるブレーキパッド挿抜補助具の取り付け工程を説明するための図である。13A to 13C are diagrams for explaining the process of attaching a brake pad insertion/removal auxiliary tool in the removal operation. 引き抜き作業におけるブレーキパッド挿抜補助具の取り付け工程を説明するための図である。13A to 13C are diagrams for explaining the process of attaching a brake pad insertion/removal auxiliary tool in the removal operation. 取り付け工程において取り付けられたブレーキパッド挿抜補助具を、ケース本体を水平面で切断して上方から見た模式図である。1 is a schematic diagram showing the brake pad insertion/removal aid attached in the attachment process, viewed from above with the case body cut along a horizontal plane. FIG. 引き抜き作業におけるブレーキパッドの引き抜き工程を説明するための図である。11A to 11C are diagrams for explaining the brake pad pulling-out process in the pulling-out operation. ブレーキパッドの挿入作業におけるブレーキパッド挿抜補助具の取り付け工程を説明するための図である。11A and 11B are diagrams for explaining a process of attaching a brake pad insertion/removal aid in the brake pad insertion work. 取り付け工程において取り付けられたブレーキパッド挿抜補助具を、ケース本体を挿入方向に平行な鉛直面で切断して左側から見た模式図である。1 is a schematic diagram of a brake pad insertion/removal aid attached in an attachment process, viewed from the left side with the case body cut along a vertical plane parallel to the insertion direction. FIG.
　以下、図面を参照して実施の形態について説明する。なお、各図において共通する要素には、同一の符号を付して、重複する説明を省略する。 Below, the embodiments will be described with reference to the drawings. Note that elements common to each drawing will be given the same reference numerals, and duplicate explanations will be omitted.
実施の形態．
１．ブレーキ装置の外観構成
　図１は、実施の形態における挿抜補助具が適用されるブレーキ装置の外観構成を示す斜視図である。この図に示すブレーキ装置１０は、エレベーターの巻上機に搭載されるディスクブレーキ装置である。ブレーキ装置１０は、ケース本体１２と、ブレーキディスク１４と、を備えている。ケース本体１２には内部空間１６が形成されている。内部空間１６は、矩形形状の開口部１８を通して外部空間に連通している。 Embodiment
1. External Configuration of the Brake Device Fig. 1 is a perspective view showing the external configuration of a brake device to which an insertion/removal assisting tool according to an embodiment is applied. The brake device 10 shown in this figure is a disc brake device mounted on an elevator hoist. The brake device 10 includes a case body 12 and a brake disc 14. An internal space 16 is formed in the case body 12. The internal space 16 communicates with an external space through a rectangular opening 18.
　図２は、ブレーキ装置を開口部の正面側から見た図である。なお、ブレーキ装置１０の内部空間１６には、ブレーキディスク１４の左右両側に一対のブレーキパッド２０，２２がそれぞれ挿入されている。なお、ブレーキ装置１０の内部空間１６には、一対のブレーキパッド２０，２２の他に複数の部品が取り付けられているが、図２では図示を省略している。 FIG. 2 is a view of the brake device as seen from the front side of the opening. A pair of brake pads 20, 22 are inserted into the internal space 16 of the brake device 10 on both the left and right sides of the brake disc 14. In addition to the pair of brake pads 20, 22, several other parts are attached to the internal space 16 of the brake device 10, but are not shown in FIG. 2.
　一対のブレーキパッド２０，２２は、開口部１８を通して引き抜き及び挿入が可能に構成されている。以下の説明では、一対のブレーキパッド２０，２２をブレーキ装置１０から引き抜く方向を「引き抜き方向」と称し、引き抜き方向の反対方向を「挿入方向」と称する。また、図２のようにブレーキ装置１０の開口部１８を正面に見た時の上下方向及び左右方向を、ブレーキ装置１０の上下方向及び左右方向として定義する。ブレーキパッド２０，２２の開口部に面する正面部２０ａ，２２ａには、引き抜き用のネジ穴部２０１，２２１がそれぞれ設けられている。ネジ穴部２０１，２２１のネジ径は、例えばＭ８である。 The pair of brake pads 20, 22 are configured so that they can be pulled out and inserted through the opening 18. In the following description, the direction in which the pair of brake pads 20, 22 are pulled out from the brake device 10 is referred to as the "pulling out direction", and the opposite direction to the pulling out direction is referred to as the "insertion direction". In addition, the up-down and left-right directions when the opening 18 of the brake device 10 is viewed from the front as in Figure 2 are defined as the up-down and left-right directions of the brake device 10. The front portions 20a, 22a of the brake pads 20, 22 facing the openings are provided with screw holes 201, 221 for pulling out, respectively. The screw diameter of the screw holes 201, 221 is, for example, M8.
２．実施の形態のエレベーター巻上機のブレーキパッド挿抜補助具の構成
　エレベーターの巻上機のブレーキ装置１０は、作業員によって定期的に点検される。点検時の取替部品には、例えば一対のブレーキパッド２０，２２が含まれることがある。一対のブレーキパッド２０，２２の交換作業では、ネジ穴部２０１，２２１にボルトを螺合させて当該ボルトと共にブレーキパッドを引き抜く作業が一般的である。しかしながら、固く嵌め合わされているブレーキパッド２０，２２を引き抜く作業は困難な場合があり、作業員にとって重作業となるおそれがある。 2. Configuration of the brake pad insertion/removal aid for an elevator hoist according to an embodiment The brake device 10 of an elevator hoist is periodically inspected by an operator. Replacement parts during inspection may include, for example, a pair of brake pads 20, 22. In replacing the pair of brake pads 20, 22, a bolt is generally screwed into the screw hole portions 201, 221 and the brake pads are pulled out together with the bolt. However, the operation of pulling out the brake pads 20, 22 that are tightly fitted together may be difficult and may be a heavy task for the operator.
　本実施の形態のブレーキパッド挿抜補助具は、このようなブレーキ装置１０のメンテナンス作業時に利用され、一対のブレーキパッド２０，２２を引き抜く作業を補助する工具である。図３は、ブレーキパッド挿抜補助具の部品構成を説明するための図である。挿抜補助具は、本体部３０と、２本の引き抜き用長ネジ３２と、２つの引き抜き用ナット３４と、２つの平ワッシャー３６と、２本の挿入用長ネジ３８と、４つのナット４０と、を備えている。 The brake pad insertion/removal aid of this embodiment is a tool that is used during maintenance work on the brake device 10 and assists in the work of pulling out the pair of brake pads 20, 22. Figure 3 is a diagram for explaining the component configuration of the brake pad insertion/removal aid. The insertion/removal aid includes a main body 30, two long extraction screws 32, two extraction nuts 34, two flat washers 36, two long insertion screws 38, and four nuts 40.
　本体部３０は、第一平面部３０１と第二平面部３０２とが、長手方向に直交する断面においてＬ型になるように接続された断面Ｌ型のアングル材である。以下の説明では、第一平面部３０１と第二平面部３０２との平面角が９０度となる側の面を裏面と定義し、平面角が２７０度となる側の面を表面と定義する。 The main body 30 is an angle bar with an L-shaped cross section, in which the first planar portion 301 and the second planar portion 302 are connected to form an L-shape in a cross section perpendicular to the longitudinal direction. In the following description, the surface on the side where the planar angle between the first planar portion 301 and the second planar portion 302 is 90 degrees is defined as the back surface, and the surface on the side where the planar angle is 270 degrees is defined as the front surface.
　第一平面部３０１には、長手方向に沿って２つの貫通孔３０３が形成されている。図４は、挿抜補助具の本体部を第一平面部の裏側から見た斜視図である。２つの貫通孔３０３の間のピッチは、ブレーキ装置１０に装着された一対のブレーキパッド２０，２２のそれぞれのネジ穴部２０１，２２１の間のピッチと同ピッチである。例えば、２つの貫通孔３０３は、第一平面部３０１の長手方向中央からそれぞれ端部に向かって３０ｍｍ離れた位置に形成されている。２つの貫通孔３０３の孔径は、引き抜き用長ネジ３２の外径よりも大径である。例えば、引き抜き用長ネジ３２のネジ径がＭ８である場合、２つの貫通孔３０３の孔径φは、１０ｍｍから１２ｍｍとされる。 Two through holes 303 are formed in the first flat portion 301 along the longitudinal direction. FIG. 4 is a perspective view of the main body of the insertion/removal aid as viewed from the back side of the first flat portion. The pitch between the two through holes 303 is the same as the pitch between the screw holes 201, 221 of the pair of brake pads 20, 22 attached to the brake device 10. For example, the two through holes 303 are formed at positions 30 mm away from the longitudinal center of the first flat portion 301 toward each end. The diameter of the two through holes 303 is larger than the outer diameter of the extraction screw 32. For example, when the thread diameter of the extraction screw 32 is M8, the hole diameter φ of the two through holes 303 is set to 10 mm to 12 mm.
　第一平面部３０１の裏面側には、ブレーキパッド２０，２２を引き抜く作業時の案内のための案内ラベル部３０９が付されている。ここでの案内ラベル部３０９には、「パッド抜き側」との表記と、第一平面部３０１の短手方向の基端側から先端側に向かう向きを示すアローマークが付されている。案内ラベル部３０９の形状、数量、配置に限定はない。例えば、案内ラベル部３０９は、１枚のラベルとして構成されていてもよい。第一平面部３０１の長手方向の両端の角部には、それぞれ面取り加工を施した面取り部３１０が形成されている。面取り部３１０の形状及び大きさに限定はない。 The back side of the first flat surface portion 301 is provided with a guide label portion 309 for guidance when pulling out the brake pads 20, 22. The guide label portion 309 here is marked with the notation "pad removal side" and an arrow mark indicating the direction from the base end side to the tip end side in the short direction of the first flat surface portion 301. There are no limitations on the shape, number, or arrangement of the guide label portions 309. For example, the guide label portion 309 may be configured as a single label. A chamfered portion 310 is formed by chamfering the corners at both ends of the first flat surface portion 301 in the longitudinal direction. There are no limitations on the shape and size of the chamfered portion 310.
　第二平面部３０２には、位置決め用貫通孔３０４と、２つの挿入用ネジ穴部３０５と、が形成されている。図５は、挿抜補助具の本体部を第二平面部の表側から見た斜視図である。位置決め用貫通孔３０４は、第二平面部３０２の長手方向中央部に形成されている。位置決め用貫通孔３０４の孔径は、引き抜き用長ネジ３２の外径よりも大径である。例えば、引き抜き用長ネジ３２のネジ径がＭ８である場合、位置決め用貫通孔３０４の孔径φは、１０ｍｍとされる。なお、位置決め用貫通孔３０４は必須の構成ではない。 The second flat surface portion 302 is formed with a positioning through hole 304 and two insertion screw holes 305. FIG. 5 is an oblique view of the main body of the insertion/removal aid viewed from the front side of the second flat surface portion. The positioning through hole 304 is formed in the longitudinal center of the second flat surface portion 302. The hole diameter of the positioning through hole 304 is larger than the outer diameter of the extraction screw 32. For example, if the thread diameter of the extraction screw 32 is M8, the hole diameter φ of the positioning through hole 304 is 10 mm. Note that the positioning through hole 304 is not a required component.
　２つの挿入用ネジ穴部３０５は、位置決め用貫通孔３０４を挟んで長手方向の両側にそれぞれ形成される。２つの挿入用ネジ穴部３０５は、例えば、第二平面部３０２に貫通孔を形成し、当該貫通孔の位置に表側からナットを溶接することにより形成される。挿入用ネジ穴部３０５のネジ径は、挿入用長ネジ３８の螺合可能なネジ径である。例えば、挿入用長ネジ３８がＭ１０のネジである場合、挿入用長ネジ３８のネジ径はＭ１０とされる。２つの挿入用ネジ穴部３０５の間のピッチは、ブレーキ装置１０に装着されているブレーキパッド２０の上下方向の幅寸法よりも小さい幅に設定される。例えば、２つの挿入用ネジ穴部３０５は、長手方向中央からそれぞれ端部に向かってそれぞれ４０ｍｍ離れた位置に形成されている。 The two insertion screw holes 305 are formed on both sides of the positioning through hole 304 in the longitudinal direction. The two insertion screw holes 305 are formed, for example, by forming a through hole in the second flat surface portion 302 and welding a nut to the through hole position from the front side. The thread diameter of the insertion screw hole 305 is a thread diameter that can be screwed into the long insertion screw 38. For example, if the long insertion screw 38 is an M10 screw, the thread diameter of the long insertion screw 38 is M10. The pitch between the two insertion screw holes 305 is set to a width smaller than the vertical width dimension of the brake pad 20 attached to the brake device 10. For example, the two insertion screw holes 305 are formed at positions 40 mm apart from the center in the longitudinal direction toward each end.
　第二平面部３０２の表面側には、ブレーキパッド２０，２２を挿入する作業時の案内のための案内ラベル部３０６，３０８が付されている。案内ラベル部３０６は、第一平面部３０１が右側に位置する向きで第二平面部３０２の長手方向を上下方向に配置した際に、上側の挿入用ネジ穴部３０５よりも更に上側となる位置に付されている。ここでの案内ラベル部３０６には、「パッド挿入側Ｒ」との表記と、第二平面部３０２の長手方向の先端側に向かう向きを示すアローマークが付されている。案内ラベル部３０８は、第一平面部３０１が左側に位置する向きで第二平面部３０２を上下方向に配置した際に、上側の挿入用ネジ穴部３０５よりも上側となる位置に付されている。ここでの案内ラベル部３０８には、「パッド挿入側Ｌ」との表記と、第二平面部３０２の長手方向の先端側に向かう向きを示すアローマークが付されている。案内ラベル部３０９の形状、数量に限定はない。例えば、案内ラベル部３０６，３０８は、それぞれ１枚のラベルとして構成されていてもよいし、複数枚のラベルに分かれていてもよい。第二平面部３０２の長手方向の両端の角部には、それぞれ面取り加工を施した面取り部３１２が形成されている。面取り部３１２の形状及び大きさに限定はない。 The surface side of the second flat portion 302 is provided with guide labels 306, 308 for guiding the insertion of the brake pads 20, 22. The guide label 306 is provided at a position above the upper insertion screw hole 305 when the second flat portion 302 is arranged vertically with the first flat portion 301 on the right side. The guide label 306 here is provided with a notation "pad insertion side R" and an arrow mark indicating the direction toward the tip end of the longitudinal direction of the second flat portion 302. The guide label 308 is provided at a position above the upper insertion screw hole 305 when the second flat portion 302 is arranged vertically with the first flat portion 301 on the left side. The guide label 308 here is provided with a notation "pad insertion side L" and an arrow mark indicating the direction toward the tip end of the longitudinal direction of the second flat portion 302. There is no limitation on the shape or number of the guide label 309. For example, each of the guide label sections 306, 308 may be configured as a single label, or may be divided into multiple labels. The corners at both ends of the second flat surface section 302 in the longitudinal direction are each formed with a chamfered portion 312. There are no limitations on the shape and size of the chamfered portion 312.
　２本の引き抜き用長ネジ３２は、ブレーキ装置１０に装着されている一対のブレーキパッド２０，２２のネジ穴部２０１，２２１のそれぞれに螺合可能に構成されている。引き抜き用長ネジ３２は、例えば頭部が六角のボルトである。或いは、引き抜き用長ネジ３２は、頭部を有しない全ネジボルトでもよい。引き抜き用長ネジ３２は、本体部３０の貫通孔３０３に通すことが可能なネジ径とされる。貫通孔３０３の孔径φが１０ｍｍの場合、引き抜き用長ネジ３２のネジ径は、例えばＭ８である。引き抜き用長ネジ３２は、ブレーキ装置１０に装着されている一対のブレーキパッド２０，２２のネジ穴部２０１，２２１に螺合させたときに開口部１８からケース本体１２の外側面の側へ突出する長さを有している。 The two long extraction screws 32 are configured to be screwable into the screw holes 201, 221 of the pair of brake pads 20, 22 attached to the brake device 10. The long extraction screws 32 are, for example, bolts with hexagonal heads. Alternatively, the long extraction screws 32 may be fully threaded bolts without heads. The long extraction screws 32 have a thread diameter that allows them to pass through the through holes 303 of the main body 30. When the hole diameter φ of the through hole 303 is 10 mm, the thread diameter of the long extraction screws 32 is, for example, M8. The long extraction screws 32 have a length that protrudes from the opening 18 toward the outer surface of the case main body 12 when screwed into the screw holes 201, 221 of the pair of brake pads 20, 22 attached to the brake device 10.
　２つの引き抜き用ナット３４は、２つの引き抜き用長ネジ３２のそれぞれに螺合可能なナットである。２つの平ワッシャー３６は、２つの引き抜き用長ネジ３２のそれぞれに通されるワッシャーである。２つの引き抜き用長ネジ３２は、２つの引き抜き用ナット３４をそれぞれ螺合させ、２つの平ワッシャー３６をそれぞれ通した状態で、本体部３０の２つの貫通孔３０３のそれぞれに裏面側から通される。 The two extraction nuts 34 are nuts that can be screwed onto the two long extraction screws 32, respectively. The two flat washers 36 are washers that are passed through the two long extraction screws 32, respectively. The two long extraction screws 32 are passed through the two through holes 303 of the main body 30 from the back side, with the two extraction nuts 34 screwed onto each of them and the two flat washers 36 passed through each of them.
　２本の挿入用長ネジ３８は、例えば頭部を有しない全ネジボルトである。２本の挿入用長ネジ３８は、本体部３０の２つの挿入用ネジ穴部３０５のそれぞれに螺合可能に構成されている。挿入用長ネジ３８の一端には、一組のナット４０が密接して螺合されている。一組のナット４０は、所謂ダブルナットの作用によって挿入用長ネジ３８に回転不能に固定される。つまり、一組のナット４０は、挿入用長ネジ３８の頭部として機能する。なお、挿入用長ネジ３８は、頭部を有するボルトでもよい。この場合、一組のナット４０は不要である。 The two long insertion screws 38 are, for example, fully threaded bolts without a head. The two long insertion screws 38 are configured so as to be able to be screwed into each of the two insertion screw holes 305 of the main body 30. A pair of nuts 40 are screwed closely to one end of the long insertion screw 38. The pair of nuts 40 are fixed to the long insertion screw 38 unrotatably by the so-called double nut action. In other words, the pair of nuts 40 function as the head of the long insertion screw 38. The long insertion screw 38 may be a bolt with a head. In this case, the pair of nuts 40 is not necessary.
　挿入用長ネジ３８は、本体部３０の挿入用ネジ穴部３０５に通すことが可能なネジ径を有する。挿入用ネジ穴部３０５のネジ径がＭ１０である場合、引き抜き用長ネジ３２のネジ径は、Ｍ１０とされる。挿入用長ネジ３８は、後述する挿入作業によってブレーキパッド２０，２２をブレーキ装置１０に挿入したときに、開口部１８からブレーキ装置１０のケース本体１２の外側面の側へ突出する長さを有している。 The long insertion screw 38 has a thread diameter that allows it to be passed through the insertion screw hole 305 of the main body 30. If the thread diameter of the insertion screw hole 305 is M10, the thread diameter of the extraction screw 32 is M10. The long insertion screw 38 has a length that protrudes from the opening 18 toward the outer surface of the case main body 12 of the brake device 10 when the brake pads 20, 22 are inserted into the brake device 10 by the insertion operation described below.
３．ブレーキパッド挿抜補助具を用いたブレーキパッド挿抜方法
　次に、実施の形態のブレーキパッド挿抜補助具を用いたブレーキパッドの引き抜き作業及び挿入作業の手順について詳細に説明する。 3. Method of Inserting and Removing Brake Pads Using the Brake Pad Insertion/Removal Aid Next, a detailed description will be given of the procedure for removing and inserting brake pads using the brake pad insertion/removal aid of the embodiment.
　準備工程：シュー押さえ等の取り外し工程
　作業員は、事前準備としてブレーキ装置１０からシュー押さえ等を外しておく。これにより、一対のブレーキパッド２０，２２の正面部２０ａ，２２ａが露出する。 Preparation Process: Process for Removing Shoe Holders, etc. As a preliminary preparation, an operator removes the shoe holders, etc. from the brake device 10. This causes the front portions 20a, 22a of the pair of brake pads 20, 22 to be exposed.
　第一工程：ブレーキパッド挿抜補助具の第一設置工程
　図６及び図７は、引き抜き作業におけるブレーキパッド挿抜補助具の取り付け工程を説明するための図である。図８は、取り付け工程において取り付けられたブレーキパッド挿抜補助具を、ケース本体を水平面で切断して上方から見た模式図である。作業の第一工程では、作業員は、２本の引き抜き用長ネジ３２のそれぞれに、引き抜き用ナット３４を螺合させ、平ワッシャー３６を通しておく。作業員は、ケース本体１２の外側において、本体部３０の長手方向を左右方向とし、且つ第一平面部３０１の裏面側の案内ラベル部３０９のアローマークが上方を向く向きで本体部３０を保持する。これにより、本体部３０は、横向き且つ第一平面部３０１の下側に第二平面部３０２が位置するように保持される。そして、作業員は、引き抜き用長ネジ３２を本体部３０の右側の貫通孔３０３に裏面側から通し、ブレーキパッド２０のネジ穴部２０１に螺合させる。同様に、作業員は、もう一本の引き抜き用長ネジ３２を本体部３０の左側の貫通孔３０３に裏面側から通し、ブレーキパッド２２のネジ穴部２２１に螺合させる。なお、本体部３０は、長手方向の全長Ｌ１が、開口部１８の左右方向の幅である横開口幅Ｗ１よりも大きくなるように構成されている。このため、第一平面部３０１の表面側の両端は、ケース本体１２の外側面１２１に接触する。 First step: First installation step of brake pad insertion/removal aid Figures 6 and 7 are diagrams for explaining the installation step of the brake pad insertion/removal aid in the removal work. Figure 8 is a schematic diagram of the brake pad insertion/removal aid installed in the installation step, cut in a horizontal plane of the case body and viewed from above. In the first step of the work, the worker screws the extraction nuts 34 onto each of the two extraction long screws 32 and passes flat washers 36 through them. The worker holds the main body 30 on the outside of the case body 12 with the longitudinal direction of the main body 30 in the left-right direction and with the arrow mark of the guide label part 309 on the back side of the first flat part 301 facing upward. As a result, the main body 30 is held horizontally and with the second flat part 302 positioned below the first flat part 301. Then, the worker passes the long extraction screw 32 through the through hole 303 on the right side of the main body 30 from the back surface side, and screws it into the screw hole 201 of the brake pad 20. Similarly, the worker passes the other long extraction screw 32 through the through hole 303 on the left side of the main body 30 from the back surface side, and screws it into the screw hole 221 of the brake pad 22. The main body 30 is configured so that the total length L1 in the longitudinal direction is larger than the lateral opening width W1, which is the width of the opening 18 in the left-right direction. Therefore, both ends on the front surface side of the first flat portion 301 come into contact with the outer surface 121 of the case main body 12.
　第二工程：引き抜き工程
　図９は、引き抜き作業におけるブレーキパッドの引き抜き工程を説明するための図である。作業の第二工程では、作業員は、引き抜き用ナット３４のサイズに合ったスパナレンチ５０を準備し、左右の引き抜き用ナット３４をスパナレンチ５０で均等に締め込んでいく。使用するスパナレンチ５０に限定はない。図９では、スパナレンチ５０としてラチェット式のメガネレンチを使用する様子が図示されている。引き抜き用ナット３４が締め込まれると、これに伴い引き抜き用長ネジ３２が相対的に引き抜き方向に移動する。これにより、引き抜き用長ネジ３２に接続されている一対のブレーキパッド２０，２２のそれぞれが、小さな力で引き抜き方向に引き抜かれる。 Second Step: Extraction Step Figure 9 is a diagram for explaining the extraction step of the brake pads in the extraction work. In the second step of the work, the worker prepares a spanner wrench 50 that matches the size of the extraction nuts 34, and tightens the left and right extraction nuts 34 evenly with the spanner wrench 50. There is no limitation on the spanner wrench 50 used. Figure 9 illustrates the use of a ratchet-type box wrench as the spanner wrench 50. When the extraction nuts 34 are tightened, the extraction long screws 32 move relatively in the extraction direction. As a result, each of the pair of brake pads 20, 22 connected to the extraction long screws 32 is extracted in the extraction direction with a small force.
　次に、実施の形態のブレーキパッド挿抜補助具を用いた一対のブレーキパッド２０，２２の挿入作業の方法について詳細に説明する。 Next, we will explain in detail how to insert a pair of brake pads 20, 22 using the brake pad insertion/removal aid of the embodiment.
　第三工程：ブレーキパッドの準備工程
　作業の第三工程では、作業員は、新たに取り付ける一対のブレーキパッド２０，２２を内部空間１６における装着位置から挿入方向手前の位置に配置しておく。 Third Step: Brake Pad Preparation Step In the third step of the work, the worker places the pair of brake pads 20, 22 to be newly installed at a position in the internal space 16 before the mounting position in the insertion direction.
　第四工程：ブレーキパッド挿抜補助具の第二設置工程
　図１０は、ブレーキパッドの挿入作業におけるブレーキパッド挿抜補助具の取り付け工程を説明するための図である。図１１は、取り付け工程において取り付けられたブレーキパッド挿抜補助具を、ケース本体を挿入方向に平行な鉛直面で切断して左側から見た模式図である。作業の第四工程では、作業員は、ケース本体１２の内部空間１６において、第二平面部３０２の表面側の案内ラベル部３０６のアローマークが上方を向く向きで本体部３０を保持する。これにより、本体部３０は、ブレーキパッド２０の外面側に第一平面部３０１が位置するように保持される。そして、作業員は、引き抜き用ナット３４を位置決め用貫通孔３０４に表面側から通して右側のブレーキパッド２０のネジ穴部２０１に螺合させる。次に作業員は、２本の挿入用長ネジ３８のそれぞれの一端側に一組のナット４０を固定し、他端側を２つの挿入用ネジ穴部３０５のそれぞれに螺合させる。なお、本体部３０は、長手方向の全長Ｌ１が、開口部１８の上下方向の幅である縦開口幅Ｈ１よりも大きくなるように構成されている。このため、第二平面部３０２の表面側の両端は、ケース本体１２の内側面１２２に接触する。 Fourth step: second installation step of brake pad insertion/removal aid Fig. 10 is a diagram for explaining the installation step of the brake pad insertion/removal aid in the brake pad insertion work. Fig. 11 is a schematic diagram of the brake pad insertion/removal aid installed in the installation step, cut by a vertical plane parallel to the insertion direction of the case body, and viewed from the left side. In the fourth step of the work, the worker holds the main body 30 in the internal space 16 of the case body 12 with the arrow mark of the guide label part 306 on the front side of the second flat part 302 facing upward. As a result, the main body 30 is held so that the first flat part 301 is located on the outer surface side of the brake pad 20. Then, the worker passes the extraction nut 34 through the positioning through hole 304 from the front side and screws it into the screw hole part 201 of the right brake pad 20. Next, the worker fixes a pair of nuts 40 to one end side of each of the two insertion long screws 38, and screws the other end side into each of the two insertion screw holes 305. The main body 30 is configured such that the overall length L1 in the longitudinal direction is greater than the vertical opening width H1, which is the vertical width of the opening 18. Therefore, both ends on the front surface side of the second flat portion 302 contact the inner surface 122 of the case main body 12.
　第五工程：ブレーキパッド２０の挿入工程
　作業の第五工程では、作業員は、ナット４０のサイズに合ったスパナレンチを準備し、上下２本の挿入用長ネジ３８に固定されたそれぞれのナット４０を、スパナレンチで均等に締め込んでいく。使用するスパナレンチに限定はない。ナット４０が締め込まれると、ナット４０に固定されている挿入用長ネジ３８が相対的に挿入方向に移動する。２本の挿入用長ネジ３８の先端部は、ブレーキパッド２０の正面部２０ａを挿入方向に均等に押し込む。これにより、ブレーキパッド２０が、小さな力でブレーキ装置１０に挿入される。 Fifth step: Inserting brake pad 20 In the fifth step of the work, the worker prepares a spanner wrench that matches the size of the nut 40, and evenly tightens each of the nuts 40 fixed to the two upper and lower long insertion screws 38 with the spanner wrench. There is no limitation on the spanner wrench that can be used. When the nuts 40 are tightened, the long insertion screws 38 fixed to the nuts 40 move relatively in the insertion direction. The tips of the two long insertion screws 38 evenly press the front portion 20a of the brake pad 20 in the insertion direction. This allows the brake pad 20 to be inserted into the brake device 10 with little force.
　第六工程：ブレーキパッド挿抜補助具の第二設置工程
　作業の第六工程では、作業員は、ケース本体１２の内部空間１６の側において、第二平面部３０２の表面側の案内ラベル部３０８のアローマークが上方を向く向きで本体部３０を保持する。これにより、本体部３０は、ブレーキパッド２０の外面側に第一平面部３０１が位置するように保持される。そして、作業員は、引き抜き用ナット３４を位置決め用貫通孔３０４に表面側から通して左側のブレーキパッド２２のネジ穴部２２１に螺合させる。次に作業員は、２本の挿入用長ネジ３８のそれぞれの一端側に一組のナット４０を固定し、他端側を２つの挿入用ネジ穴部３０５のそれぞれに螺合させる。 Sixth Step: Second Installation Step of Brake Pad Insertion/Removal Aid In the sixth step of the work, the worker holds the main body 30 on the side of the internal space 16 of the case body 12 with the arrow mark on the guide label portion 308 on the front side of the second flat surface portion 302 facing upward. This holds the main body 30 so that the first flat surface portion 301 is located on the outer surface side of the brake pad 20. Then, the worker passes the extraction nut 34 through the positioning through hole 304 from the front side and screws it into the screw hole portion 221 of the left brake pad 22. Next, the worker fixes a pair of nuts 40 to one end side of each of the two insertion long screws 38, and screws the other end side into each of the two insertion screw holes 305.
　第七工程：ブレーキパッド２２の挿入工程
　作業の第七工程では、第五工程と同様に、上下２本の挿入用長ネジ３８に固定されたそれぞれのナット４０を、スパナレンチで均等に締め込んでいく。これにより、ブレーキパッド２２が、小さな力でブレーキ装置１０に挿入される。最後に、シュー押さえ等の必要部品を取り付ける。 Seventh step: Inserting the brake pad 22 In the seventh step, similar to the fifth step, the nuts 40 fixed to the upper and lower long insertion screws 38 are evenly tightened with a spanner wrench. This allows the brake pad 22 to be inserted into the brake device 10 with little force. Finally, necessary parts such as a shoe holder are attached.
４．ブレーキパッド挿抜補助具の作用及び効果
　以上のようなブレーキパッド挿抜補助具によれば、以下の作用及び効果が得られる。 4. Functions and Effects of the Brake Pad Insertion/Removal Auxiliary Tool The brake pad insertion/removal auxiliary tool described above provides the following functions and effects.
　本体部３０は、第一平面部３０１と第二平面部３０２とが、長手方向に直交する断面においてＬ型になるように接続された形状を有している。このような形状によれば、簡易な構成で強度を確保することができる。 The main body 30 has a shape in which the first planar portion 301 and the second planar portion 302 are connected to form an L-shape in a cross section perpendicular to the longitudinal direction. This shape ensures strength with a simple structure.
　本体部３０は、２つの貫通孔３０３の間のピッチが、ブレーキ装置１０に装着された一対のブレーキパッド２０，２２のそれぞれのネジ穴部２０１，２２１の間のピッチと同ピッチになるように構成されている。このような構成によれば、２本の引き抜き用長ネジ３２をネジ穴部２０１，２２１にそれぞれ螺合させたときに、これら２本の引き抜き用長ネジ３２が平行となるため、引き抜き用ナット３４を締め込んだときの本体部３０の位置ずれを防ぐことができる。 The main body 30 is configured so that the pitch between the two through holes 303 is the same as the pitch between the screw holes 201, 221 of the pair of brake pads 20, 22 attached to the brake device 10. With this configuration, when the two long extraction screws 32 are screwed into the screw holes 201, 221, respectively, the two long extraction screws 32 become parallel, so that it is possible to prevent the main body 30 from shifting in position when the extraction nut 34 is tightened.
　本体部３０は、長手方向の全長Ｌ１が、開口部１８の横開口幅Ｗ１よりも大きくなるように構成されている。このような構成によれば、ブレーキパッド２０，２２の引き抜き作業において、本体部３０を長手方向が開口部の左右方向と一致する向きで開口部１８の正面に配置したとき、本体部３０の両端部をケース本体１２の外側面１２１に確実に接触させることが可能となる。 The main body 30 is configured so that the total length L1 in the longitudinal direction is greater than the lateral opening width W1 of the opening 18. With this configuration, when the main body 30 is placed in front of the opening 18 with its longitudinal direction aligned with the left-right direction of the opening during the operation of removing the brake pads 20, 22, both ends of the main body 30 can be reliably brought into contact with the outer surface 121 of the case body 12.
　また、本体部３０は、第一平面部３０１の短手方向の全長が開口部１８の上下方向の高さよりも狭くなるように構成されている。このような構成によれば、ブレーキパッド２０，２２の引き抜き作業において、本体部３０を長手方向が開口部の左右方向と一致する向きで配置したとき、開口部１８から内部空間１６を視認しながら作業を進めることができる。 The main body 30 is also configured so that the overall length of the first planar portion 301 in the short direction is narrower than the vertical height of the opening 18. With this configuration, when the main body 30 is oriented so that its longitudinal direction coincides with the left-right direction of the opening during the work of removing the brake pads 20, 22, the work can be carried out while visually checking the internal space 16 through the opening 18.
　本体部３０は、長手方向の全長Ｌ１が、開口部１８の縦開口幅Ｈ１よりも大きくなるように構成されている。このような構成によれば、ブレーキパッド２０，２２の挿入作業において、本体部３０を長手方向が開口部１８の高さ方向と一致する向きで内部空間１６に配置したとき、本体部３０の両端部をケース本体１２の内側面１２２に確実に接触させることが可能となる。 The main body 30 is configured so that the total length L1 in the longitudinal direction is greater than the vertical opening width H1 of the opening 18. With this configuration, when the main body 30 is placed in the internal space 16 with its longitudinal direction aligned with the height direction of the opening 18 during the insertion of the brake pads 20, 22, both ends of the main body 30 can be reliably brought into contact with the inner surface 122 of the case body 12.
　また、本体部３０は、第二平面部３０２の短手方向の全長が開口部１８の左右方向の幅よりも狭くなるように構成されている。このような構成によれば、ブレーキパッド２０，２２の挿入作業において、本体部３０を内部空間１６に配置することができる。 Furthermore, the main body 30 is configured so that the overall length of the second planar portion 302 in the short direction is narrower than the width of the opening 18 in the left-right direction. With this configuration, the main body 30 can be positioned in the internal space 16 during the insertion of the brake pads 20, 22.
　２本の引き抜き用長ネジ３２のそれぞれは、ブレーキ装置１０に装着されているブレーキパッド２０，２２のネジ穴部２０１，２２１に一端側を螺合させたときに、他端側が開口部１８から突出する長さを有している。このような構成によれば、２本の引き抜き用長ネジ３２に本体部３０の貫通孔３０３を通した上で、引き抜き用ナット３４を引き抜き用長ネジ３２に螺合させて締め付けることが可能となる。 Each of the two long extraction screws 32 has a length such that when one end is screwed into the threaded holes 201, 221 of the brake pads 20, 22 attached to the brake device 10, the other end protrudes from the opening 18. With this configuration, it is possible to pass the two long extraction screws 32 through the through holes 303 of the main body 30, and then screw the extraction nuts 34 onto the long extraction screws 32 and tighten them.
　２本の引き抜き用長ネジ３２のそれぞれには、本体部３０と引き抜き用ナット３４との灰田に平ワッシャーが通されている。このような構成によれば、引き抜き用ナット３４の締め付けが容易になる。 Each of the two long extraction screws 32 has a flat washer passed through the gap between the main body 30 and the extraction nut 34. This configuration makes it easy to tighten the extraction nut 34.
　ブレーキパッド２０，２２の引き抜き作業において、本体部３０は、第二平面部３０２が、第一平面部３０１の下方に位置する向きで配置される。このような構成によれば、作業員は、引き抜き用ナット３４を視認しながら締め付け作業を行うことができる。また、作業員は、スパナレンチ５０を本体部３０よりも上側で操作することができるので、作業効率が向上する。 When pulling out the brake pads 20, 22, the main body 30 is oriented so that the second flat surface 302 is below the first flat surface 301. This configuration allows the worker to tighten the pull-out nut 34 while visually checking the pull-out nut 34. In addition, the worker can operate the spanner wrench 50 above the main body 30, improving work efficiency.
　本体部３０は、第一平面部３０１の短手方向の先端側の角部と第二平面部３０２の短手方向の先端側の角部に、それぞれ面取り処理を施した面取り部３１０，３１２をそれぞれ備える。このような構成によれば、本体部３０を内部空間１６に設置する場合等、狭小部への挿入作業が容易になる。また、角部がケース本体１２等に引っ掛かりキズが付くことを防ぐことができる。さらに、作業員の怪我の防止にも効果がある。 The main body 30 has chamfered corners 310, 312 at the leading edge of the short side of the first flat surface 301 and at the leading edge of the short side of the second flat surface 302. This configuration makes it easier to insert the main body 30 into a narrow space, for example when installing the main body 30 in the internal space 16. It also prevents the corners from getting caught on the case main body 12 or the like and causing scratches. It is also effective in preventing injuries to workers.
　ブレーキパッド２０の挿入作業において、引き抜き用長ネジ３２が位置決め用貫通孔３０４を通した後にブレーキパッド２０のネジ穴部２０１に螺合される。このような構成によれば、ブレーキパッド２０に対する本体部３０の位置決めが容易になる。なお、このことは、ブレーキパッド２２の挿入作業においても同様である。 When inserting the brake pad 20, the long extraction screw 32 is passed through the positioning through hole 304 and then screwed into the screw hole 201 of the brake pad 20. This configuration makes it easy to position the main body 30 relative to the brake pad 20. The same applies to the insertion of the brake pad 22.
　２つの挿入用ネジ穴部３０５は、一対の挿入用長ネジ３８をそれぞれ螺合させた状態において、当該一対の挿入用長ネジ３８の先端部がブレーキパッド２０の正面部２０ａに接触する位置に形成されている。このような構成によれば、一対の挿入用長ネジ３８を均等に締め込むことにより、ブレーキパッド２０を正規の位置まで挿入することが可能となる。 The two insertion screw holes 305 are formed in positions where the tips of the pair of insertion long screws 38 come into contact with the front surface 20a of the brake pad 20 when the pair of insertion long screws 38 are screwed together. With this configuration, the brake pad 20 can be inserted to the correct position by evenly tightening the pair of insertion long screws 38.
　挿入用長ネジ３８の一端には、一組のナット４０がいわゆるダブルナットの形態で固定されている。このような構成によれば、本体部３０の側のナット４０が、端部側のナット４０に掛けたメガネレンチの挿入方向へのズレを抑える規制部材として機能する。これにより、ナット４０を示す作業員の作業効率が向上する。 A pair of nuts 40 are fixed to one end of the long insertion screw 38 in the form of a so-called double nut. With this configuration, the nut 40 on the side of the main body 30 functions as a restricting member that prevents the socket wrench hung on the nut 40 on the end side from shifting in the insertion direction. This improves the work efficiency of the worker who holds the nuts 40.
　ブレーキパッド２０の挿入作業において、本体部３０は、ブレーキパッド２０の外面側に第一平面部３０１が右側に位置するように配置される。また、ブレーキパッド２２の挿入作業において、本体部３０は、ブレーキパッド２２の外面側に第一平面部３０１が右側に位置するように配置される。このような配置によれば、作業員は、開口部１８から内部空間１６の視認が容易になるので、作業性が向上する。 When inserting the brake pad 20, the main body 30 is positioned so that the first flat surface 301 is located to the right of the outer surface of the brake pad 20. When inserting the brake pad 22, the main body 30 is positioned so that the first flat surface 301 is located to the right of the outer surface of the brake pad 22. This positioning allows the worker to easily view the internal space 16 from the opening 18, improving workability.
　１０　ブレーキ装置、　１２　ケース本体、　１４　ブレーキディスク、　１６　内部空間、１８　開口部、　２０，２２　ブレーキパッド、　２０ａ，２２ａ　正面部、　３０　本体部、　３２　引き抜き用長ネジ、　３４　引き抜き用ナット、　３６　平ワッシャー、　３８　挿入用長ネジ、　４０　ナット　５０　スパナレンチ　１２１　外側面　１２２　内側面　２０１，２２１　ネジ穴部、　３０１　第一平面部、　３０２　第二平面部、　３０３　貫通孔、　３０４　位置決め用貫通孔、　３０５　挿入用ネジ穴部、　３０６，３０８　案内ラベル部、　３０９　案内ラベル部、　３１０，３１２　面取り部 10 Brake device, 12 Case body, 14 Brake disc, 16 Internal space, 18 Opening, 20, 22 Brake pads, 20a, 22a Front portion, 30 Body portion, 32 Long screw for removal, 34 Nut for removal, 36 Flat washer, 38 Long screw for insertion, 40 Nut, 50 Spanner wrench, 121 Outer surface, 122 Inner surface, 201, 221 Screw hole portion, 301 First flat portion, 302 Second flat portion, 303 Through hole, 304 Through hole for positioning, 305 Screw hole portion for insertion, 306, 308 Guide label portion, 309 Guide label portion, 310, 312 Chamfered portion

Claims (16)

  1. 　エレベーター巻上機のブレーキ装置の内部空間に連通する開口部から、前記内部空間に設置された一対のブレーキパッドを引き抜く又は挿入する際に利用されるブレーキパッド挿抜補助具であって、
    　前記一対のブレーキパッドは、前記開口部に面する正面部に、それぞれネジ穴部を備え、
    　前記ブレーキパッド挿抜補助具は、
    　第一平面部と第二平面部とが、長手方向に直交する断面においてＬ型になるように接続された本体部と、
    　前記ネジ穴部のそれぞれに螺合される２本の引き抜き用長ネジと、
    　前記２本の長ネジのそれぞれに螺合される２つの引き抜き用ナットと、を備え、
    　前記第一平面部は、前記引き抜き用長ネジの外径よりも大径に形成された２つの貫通孔を有し、
    　前記一対のブレーキパッドの引き抜き作業において、
    　前記２本の引き抜き用長ネジのそれぞれは、前記２つの貫通孔のそれぞれに貫通させた状態において、一端が前記ネジ穴部のそれぞれに螺合されるように構成され、
    　前記２つの引き抜き用ナットは、前記２本の引き抜き用長ネジのそれぞれの他端と前記本体部との間にそれぞれ螺合される
    　ように構成されるブレーキパッド挿抜補助具。     A brake pad insertion/removal aid used when pulling out or inserting a pair of brake pads installed in an internal space of a brake device of an elevator hoisting machine from an opening communicating with the internal space,
    The pair of brake pads each have a screw hole portion on a front surface facing the opening,
    The brake pad insertion/removal aid is
    a main body portion in which the first planar portion and the second planar portion are connected to each other so as to form an L-shape in a cross section perpendicular to the longitudinal direction;
    Two long extraction screws that are screwed into the respective screw holes;
    and two pull nuts respectively threadedly engaged with the two long screws;
    The first flat portion has two through holes formed with a diameter larger than the outer diameter of the pull-out long screw,
    In the operation of removing the pair of brake pads,
    The two long extraction screws are configured such that one end of each of the two long extraction screws is screwed into the corresponding screw hole portion when the two long extraction screws are inserted into the corresponding through holes,
    The two extraction nuts are configured to be screwed between the other ends of the two extraction long screws and the main body, respectively.
  2. 　前記２つの貫通孔は、前記一対のブレーキパッドのそれぞれの前記ネジ穴部の間のピッチと同ピッチに構成されている
    　請求項１に記載のブレーキパッド挿抜補助具。     The brake pad insertion/removal aid according to claim 1 , wherein the two through holes are formed at the same pitch as the pitch between the screw hole portions of the pair of brake pads.
  3. 　前記本体部は、前記第一平面部の長手方向の全長が前記開口部の横開口幅よりも大きい
    　請求項１又は請求項２に記載のブレーキパッド挿抜補助具。     The brake pad insertion/removal aid according to claim 1 or 2, wherein the main body portion has a total length in a longitudinal direction of the first flat portion that is greater than a lateral opening width of the opening.
  4. 　前記２本の引き抜き用長ネジのそれぞれに通され、前記引き抜き用ナットと前記貫通孔との間に挟まれる２つの平ワッシャーを更に備える
    　請求項１から請求項３の何れか１項に記載のブレーキパッド挿抜補助具。     The brake pad insertion/removal aid according to any one of claims 1 to 3, further comprising two flat washers that are passed through the two long extraction screws, respectively, and are sandwiched between the extraction nut and the through hole.
  5. 　前記引き抜き作業において、前記本体部は、
    　前記第二平面部が前記第一平面部の下方に位置する向きで配置される
    　請求項１から請求項４の何れか１項に記載のブレーキパッド挿抜補助具。     In the pulling operation, the main body portion is
    The brake pad insertion/removal aid according to any one of claims 1 to 4, wherein the second flat portion is disposed in an orientation such that the second flat portion is located below the first flat portion.
  6. 　前記本体部は、
    　前記第一平面部の短手方向の先端側の角部と前記第二平面部の短手方向の先端側の角部に、それぞれ面取り処理をした面取り部を備える
    　請求項１から請求項５の何れか１項に記載のブレーキパッド挿抜補助具。     The main body portion is
    6. The brake pad insertion/removal aid according to claim 1, wherein a chamfered portion is provided at a corner portion on a tip side in a short side direction of the first planar portion and a corner portion on a tip side in a short side direction of the second planar portion.
  7. 　前記第二平面部は、
    　長手方向に並んで設けられた一対の挿入用ネジ穴部を備え、
    　前記ブレーキパッド挿抜補助具は、
    　一端側に頭部を有し、他端側が前記挿入用ネジ穴部に螺合される一対の挿入用長ネジを備え、
    　前記ブレーキパッドの挿入作業において、
    　前記本体部は、前記内部空間において、前記第二平面部が前記開口部の内側面に接触し、前記挿入用ネジ穴部に螺合された前記一対の挿入用長ネジの前記他端側が前記ブレーキパッドの前記正面部に接触する位置に配置される
    　請求項１から請求項６の何れか１項に記載のブレーキパッド挿抜補助具。     The second planar portion is
    A pair of insertion screw holes are provided side by side in the longitudinal direction,
    The brake pad insertion/removal aid is
    a pair of long insertion screws each having a head at one end and a head at the other end which is screwed into the insertion screw hole;
    In the brake pad insertion operation,
    7. The brake pad insertion/removal aid according to claim 1, wherein the main body is positioned in the internal space at a position where the second flat surface contacts the inner surface of the opening and the other end sides of the pair of long insertion screws screwed into the insertion screw hole portions contact the front portion of the brake pad.
  8. 　前記一対の挿入用ネジ穴部の間において、前記引き抜き用長ネジの外径よりも大径に形成された位置決め用貫通孔を更に備え、
    　前記挿入作業において、
    　前記引き抜き用長ネジは、前記位置決め用貫通孔を通して前記ブレーキパッドの前記ネジ穴部に螺合される
    　ように構成される請求項７に記載のブレーキパッド挿抜補助具。     A positioning through hole is formed between the pair of insertion screw hole portions and has a diameter larger than an outer diameter of the pull-out long screw,
    In the insertion operation,
    The brake pad insertion/removal aid according to claim 7, wherein the long extraction screw is configured to be threadedly engaged with the screw hole of the brake pad through the positioning through hole.
  9. 　前記一対の挿入用ネジ穴部の間のピッチは、前記ブレーキパッドの前記正面部の長手方向の長さよりも狭くなるように構成されている
    　請求項７又は請求項８に記載のブレーキパッド挿抜補助具。     9. The brake pad insertion/removal aid according to claim 7, wherein a pitch between the pair of insertion screw holes is narrower than a longitudinal length of the front portion of the brake pad.
  10. 　前記本体部は、前記第二平面部の長手方向の全長が前記開口部の縦開口幅よりも大きい
    　請求項７から請求項９の何れか１項に記載のブレーキパッド挿抜補助具。     The brake pad insertion/removal aid according to any one of claims 7 to 9, wherein the main body portion has a total length in a longitudinal direction of the second flat portion that is greater than a vertical opening width of the opening.
  11. 　前記挿入作業において、前記本体部は、
    　前記第一平面部が、前記ブレーキパッドの外面側に位置する向きで配置される
    　請求項７から請求項１０の何れか１項に記載のブレーキパッド挿抜補助具。     In the insertion operation, the main body portion
    The brake pad insertion/removal aid according to any one of claims 7 to 10, wherein the first flat portion is oriented so as to be located on an outer surface side of the brake pad.
  12. 　請求項１から請求項６の何れか１項に記載のブレーキパッド挿抜補助具を用いて、エレベーター巻上機のブレーキ装置の内部空間に連通する開口部から、前記内部空間に設置された一対のブレーキパッドを引き抜く又は挿入するブレーキパッド挿抜方法であって、
    　前記２つの引き抜き用ナットのそれぞれを前記２本の引き抜き用長ネジのそれぞれに螺合させる工程と、
    　前記本体部を前記開口部の外側面の側に配置し、前記２本の引き抜き用長ネジのそれぞれを、前記２つの貫通孔のそれぞれに貫通させ、一端を前記ネジ穴部のそれぞれに螺合させる第一設置工程と、
    　前記２つの引き抜き用ナットを締め付ける工程と、
    　を備えるブレーキパッド挿抜方法。     A brake pad insertion/removal method for inserting or removing a pair of brake pads installed in an internal space of a brake device of an elevator hoisting machine through an opening communicating with the internal space, using the brake pad insertion/removal auxiliary tool according to any one of claims 1 to 6,
    threading the two extraction nuts onto the two long extraction screws;
    a first installation step of disposing the main body on the outer surface side of the opening, inserting each of the two long extraction screws into each of the two through holes, and screwing one end of each of the two long extraction screws into each of the screw hole portions;
    tightening the two extraction nuts;
    A brake pad insertion/removal method comprising:
  13. 　前記第一設置工程において、前記本体部は、前記第二平面部が前記第一平面部の下方に位置する向きで配置される
    　請求項１２に記載のブレーキパッド挿抜方法。     The brake pad insertion and removal method according to claim 12, wherein in the first installation step, the main body portion is disposed in an orientation such that the second flat portion is located below the first flat portion.
  14. 　請求項７から請求項１１の何れか１項に記載のブレーキパッド挿抜補助具を用いて、エレベーター巻上機のブレーキ装置の内部空間に連通する開口部から、ブレーキパッドを装着位置へ挿入するブレーキパッド挿抜方法であって、
    　前記ブレーキパッドを前記内部空間における前記装着位置から挿入方向手前の位置に配置する工程と、
    　前記内部空間において、前記本体部を前記第二平面部が前記開口部の前記内側面に接触し且つ前記挿入用ネジ穴部に螺合された前記一対の挿入用長ネジの前記他端側が前記ブレーキパッドの前記正面部に接触する位置に配置する第二設置工程と、
    　前記一対の挿入用長ネジを締め付ける工程と、
    　を備えるブレーキパッド挿抜方法。     A brake pad insertion/removal method for inserting brake pads into a mounting position from an opening communicating with an internal space of a brake device of an elevator hoisting machine by using the brake pad insertion/removal auxiliary tool according to any one of claims 7 to 11,
    disposing the brake pad at a position in the internal space forward of the mounting position in an insertion direction;
    a second installation step of arranging the main body in the internal space at a position such that the second flat surface contacts the inner side surface of the opening and the other end sides of the pair of long insertion screws screwed into the insertion screw hole portions contact the front surface of the brake pad;
    tightening the pair of long insertion screws;
    A brake pad insertion/removal method comprising:
  15. 　前記第二設置工程において、前記本体部は、前記第一平面部が前記ブレーキパッドの外面側に位置する向きで配置される
    　請求項１４に記載のブレーキパッド挿抜方法。     The brake pad insertion and removal method according to claim 14, wherein in the second installation step, the main body portion is arranged in an orientation in which the first flat portion is located on an outer surface side of the brake pad.
  16. 　前記本体部は、
    　前記一対の挿入用ネジ穴部の間において、前記引き抜き用長ネジの外径よりも大径に形成された位置決め用貫通孔を更に備え、
    　前記第二設置工程において、前記引き抜き用長ネジを、前記位置決め用貫通孔を通して前記ブレーキパッドの前記ネジ穴部に螺合する工程を更に備える
    　請求項１４又は請求項１５に記載のブレーキパッド挿抜方法。     The main body portion is
    A positioning through hole is formed between the pair of insertion screw hole portions and has a diameter larger than an outer diameter of the pull-out long screw,
    The brake pad insertion/removal method according to claim 14 or 15, further comprising the step of screwing the long extracting screw into the screw hole of the brake pad through the positioning through hole in the second installation step.
PCT/JP2022/039188 2022-10-20 2022-10-20 Brake pad insertion/removal aid and brake pad insertion/removal method for hoist brake device WO2024084670A1 (en)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6085398A (en) * 1998-02-26 2000-07-11 Arch; Edward T. Dual disk brake pad spreader
JP2001259940A (en) * 2000-03-17 2001-09-25 Toshiba Plant Kensetsu Co Ltd Method for drawing capillary tube of heat exchanger and drawing device
JP2007198454A (en) * 2006-01-25 2007-08-09 Akebono Brake Ind Co Ltd Piston draw-out tool for disk brake
JP2008307660A (en) * 2007-06-15 2008-12-25 Mitsubishi Electric Building Techno Service Co Ltd Gear extracting tool
CN203371476U (en) * 2013-07-03 2014-01-01 国家电网公司 Steering yoke hub puller
JP2018168866A (en) * 2017-03-29 2018-11-01 三菱電機ビルテクノサービス株式会社 Jig and maintenance method

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6085398A (en) * 1998-02-26 2000-07-11 Arch; Edward T. Dual disk brake pad spreader
JP2001259940A (en) * 2000-03-17 2001-09-25 Toshiba Plant Kensetsu Co Ltd Method for drawing capillary tube of heat exchanger and drawing device
JP2007198454A (en) * 2006-01-25 2007-08-09 Akebono Brake Ind Co Ltd Piston draw-out tool for disk brake
JP2008307660A (en) * 2007-06-15 2008-12-25 Mitsubishi Electric Building Techno Service Co Ltd Gear extracting tool
CN203371476U (en) * 2013-07-03 2014-01-01 国家电网公司 Steering yoke hub puller
JP2018168866A (en) * 2017-03-29 2018-11-01 三菱電機ビルテクノサービス株式会社 Jig and maintenance method

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