Position adjustment jig and method for adjusting position of brake switch

Abstract

Provided are a position adjustment jig and a brake switch position adjustment method capable of easily adjusting the position of a brake switch. This position adjustment jig is for a brake switch attached so as to face an expansion plate that, according to the operation state of the brake, changes position relative to a substrate of a brake of an elevator hoist. The position adjustment jig is used when the position of the brake switch is to be adjusted such that the brake switch is in an attachment position enabling detection of the operation state, and said jig comprises a first portion including a brake-side face and a second portion including a switch-side face that is oriented opposite from the brake-side face and is separated from the brake-side face by the attachment distance. The attachment distance is the distance to the substrate from a housing for the brake switch which supports a contact body that comes into contact with the expansion plate when the brake switch is present in the attachment position.

Description

Technical Field

[0001] The present disclosure relates to a position adjusting jig and a method for adjusting the position of a brake switch.

Background Art

[0002] Patent Document 1 discloses a method for adjusting the position of a brake switch of an elevator. In this position adjustment method, the position of the brake switch is fixed with a gap gauge inserted between the upper plane of the armature core and the contact body of the brake switch. At this time, the brake switch is fixed so as to ensure an appropriate operating point. Therefore, the brake switch can be attached to an appropriate attachment position.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] However, in the position adjustment method described in Patent Document 1, after the brake switch is temporarily fixed to the attachment position, it is finally fixed by tightening a lock nut or the like. This final fixing needs to be performed so that the position of the brake switch does not deviate from the attachment position. Therefore, the operation of adjusting the position of the brake switch is a difficult operation whose difficulty depends on the skill level of the operator.

[0005] The present disclosure has been made to solve the above problems. An object of the present disclosure is to provide a position adjusting jig and a method for adjusting the position of a brake switch that can easily adjust the position of the brake switch.

Means for Solving the Problems

[0006] The position adjusting tool according to the present disclosure is a position adjusting tool used when adjusting the position of a brake switch attached to face an expansion plate whose position changes according to the operating state of a brake with respect to the base of the brake of a hoist of an elevator, so that the brake switch can be in an attachment position where it can detect the operating state. The position adjusting tool includes a first portion having a brake side surface, and a second portion facing away from the brake side surface and having a switch side surface separated from the brake side surface by an attachment distance. The attachment distance is the distance from the housing of the brake switch that supports a contact body that contacts the expansion plate to the base when the brake switch is in the attachment position. The first part has a first end portion having a first brake side surface that is a part of the brake side surface, and a second end portion having a second brake side surface that is a different part of the brake side surface from the first brake side surface. The second part is located between the first end portion and the second end portion when viewed from a direction perpendicular to the brake side surface. When the position of the brake switch is adjusted, the expansion plate is disposed between the first end portion and the second end portion in the longitudinal direction of the expansion plate. When the first end portion and the second end portion are in contact with the base body on the brake side surface, the brake side surface of the second part is in contact with the housing. 。

[0007] The method for adjusting the position of a brake switch according to the present disclosure is a method for adjusting the position of a brake switch attached to face an expansion plate whose position changes according to the operating state of a brake with respect to the base of the brake of a hoist of an elevator, so that the brake switch can be in an attachment position where it can detect the operating state. The method includes an arranging step of sandwiching a position adjusting tool between a housing not fixed to the base and the base, and a fastening step performed after the arranging step of tightening a fixture for fixing the housing to the base while maintaining the state where the position adjusting tool is sandwiched between the housing and the base. In the arranging step, the position adjusting tool is arranged such that the brake side surface contacts the base and the switch side surface contacts the housing.

Advantages of the Invention

[0008] According to the present disclosure, the position adjusting tool has a brake side surface and a switch side surface separated by an attachment distance. The fixture of the brake switch is tightened in a state where the base of the brake contacts the brake side surface and the housing of the brake switch contacts the switch side surface. Therefore, the position of the brake switch can be easily adjusted.

Brief Description of the Drawings

[0009]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

Figure 10

Figure 11

Figure 12

Figure 13

Embodiments for Carrying Out the Invention

[0010] The embodiments for carrying out the present disclosure will be described with reference to the accompanying drawings. In each figure, the same or corresponding parts are denoted by the same reference numerals. The redundant description of such parts will be appropriately simplified or omitted.

[0011] Embodiment 1. FIG. 1 is a diagram showing an overview of an elevator apparatus to which the position adjustment jig in Embodiment 1 is applied. FIG. 2 is a side view of a hoist to which the position adjustment jig in Embodiment 1 is applied.

[0012] As shown in FIG. 1, an elevator apparatus 1 is shown. A hoistway 2 penetrates each floor of a building 3. A machine room 4 is provided directly above the hoistway 2.

[0013] A hoist 5 is provided in the machine room 4. The hoist 5 is a hoist using a permanent magnet type motor, which is a so-called PM hoist. The hoist 5 includes two brakes 6.

[0014] A main rope 7 is wound around a sheave 5a of the hoist 5. A car 8 is suspended on one side of the main rope 7 inside the hoistway 2. A counterweight 9 is suspended on the other side of the main rope 7 inside the hoistway 2. A control device 10 is provided in the machine room 4. The control device 10 is electrically connected to the hoist 5 and the two brakes 6. The control device 10 can control the elevator apparatus 1 as a whole.

[0015] For example, the control device 10 rotates the sheave 5a of the hoist 5. The main rope 7 moves following the rotation of the sheave 5a of the hoist 5. The car 8 and the counterweight 9 move up and down in opposite directions following the movement of the main rope 7. The control device 10 stops the sheave 5a of the hoist 5 by operating the two brakes 6.

[0016] As shown in FIG. 2, a disk brake system is applied to the hoist 5. Specifically, the hoist 5 has a brake disk 5b. The brake disk 5b is mechanically connected to the sheave 5a. The brake disk 5b rotates in synchronization with the sheave 5a. The two brakes 6 are attached to positions symmetric in the left-right direction with respect to the rotation axis of the hoist 5. Each of the two brakes 6 can apply a braking force to the brake disk 5b.

[0017] The winding-up machine 5 is provided with two brake switches 11. The two brake switches 11 are a brake switch 11a and a brake switch 11b. The brake switch 11a and the brake switch 11b have the same configuration and are provided at different positions. Hereinafter, the brake switches 11a and 11b are also collectively referred to as the brake switch 11. The brake switch 11a is provided on one of the two brakes 6 by a mounting substrate 12a and a fastener 13a. The brake switch 11b is provided on the other of the two brakes 6 by a mounting substrate 12b and a fastener 13b. The mounting substrates 12a and 12b are attached to the outer surfaces 6s of the corresponding brakes 6, respectively. That is, each of the brake switches 11a and 11b is attached to the outer surface 6s on the side opposite to the chain wheel 5a and the brake disc 5b.

[0018] The brake switch 11a and the brake switch 11b are attached symmetrically with respect to the rotation axis of the brake disc 5b. Specifically, the mounting substrate 12a is located on the side opposite to the brake switch 11b with respect to the brake switch 11a. The mounting substrate 12b is located on the side opposite to the brake switch 11a with respect to the brake switch 11b.

[0019] Next, the brake 6 will be described with reference to FIG. 3. FIG. 3 is a schematic diagram of a brake to which the position adjustment jig in the first embodiment is applied. In FIG. 3, the brake switch 11a is illustrated as the brake switch 11, and the illustration of the mounting substrate 12a is omitted.

[0020] FIG. 3 shows the brake 6 in an off state, which is an operating state in which no braking force is applied. The brake 6 includes a base body 6a, an armature 6b, a pad 6c, a spring 6d, a suction device 6e, a transmission pin 6f, an expansion plate 6g, and a plate fixture 6h.

[0021] The base 6a forms the outer contour of the brake 6. A brake switch 11 is attached to the outer surface 6s of the base 6a. The armature 6b can move freely in the direction of the rotation axis of the brake disk 5b. The pad 6c is fixed to the armature 6b facing the brake disk 5b. The spring 6d is provided in a compressed state between the base 6a and the armature 6b. The spring 6d applies a restoring force to the armature 6b in the direction of the brake disk 5b. For example, the suction device 6e includes an electromagnet. When an electric current flows through the suction device 6e, the suction device 6e applies an attractive force to the armature 6b in a direction away from the brake disk 5b. Note that a similar mechanism such as the pad 6c may be provided on the opposite side sandwiching the brake disk 5b. In this case, the two pads 6c can sandwich the brake disk 5b.

[0022] For example, the transmission pin 6f is formed in a rod shape. One end of the transmission pin 6f is fixed to the armature 6b. The transmission pin 6f passes through a hole inside the base 6a. The other end of the transmission pin 6f can protrude from the outer surface 6s. The expansion plate 6g is a leaf spring. The expansion plate 6g can elastically deform in the longitudinal direction. The expansion plate 6g is disposed on the outer surface 6s at a position closing a hole inside the base 6a. For example, the plate fixture 6h is a bolt. The plate fixture 6h fixes one end in the longitudinal direction of the expansion plate 6g to the base 6a. In this state, the expansion plate 6g has a restoring force toward the outer surface 6s. The plate fixture 6h protrudes from the outer surface 6s together with the expansion plate 6g. Note that the plate fixture 6h may be regarded as a part of the configuration of the expansion plate 6g.

[0023] The brake switch 11 is attached at a position facing the expansion plate 6g. The brake switch 11 includes a housing 14, a signal line 15, and a contact body 16.

[0024] The housing 14 forms the outer shell of the brake switch 11. For example, inside the housing 14, a switch mechanism such as an electronic circuit is stored. The signal line 15 includes a conducting wire. The signal line 15 transmits the electrical signal emitted by the switch mechanism to a control device 10 not shown in FIG. 3. The contact body 16 is a button. The contact body 16 is supported by the housing 14 which is the outer shell. The contact body 16 protrudes from the housing 14. The switch mechanism assumes a signal state according to whether the button is operated, that is, whether the contact body 16 is pressed. For example, as one of the signal states, the switch mechanism emits an electrical signal only when the contact body 16 is pressed.

[0025] Although not shown, when the operating state of the brake 6 is in the on state, the suction device 6e does not apply a suction force to the armature 6b. The armature 6b is pushed in the direction of the restoring force of the spring 6d at the position where the pad 6c contacts the brake disk 5b. The pad 6c applies a frictional force as a braking force to the brake disk 5b. The tip of the other side of the transmission pin 6f is located on the inner side of the base body 6a rather than the outer surface 6s. In this case, the end of the non-fixed side of the expansion plate 6g is at a position where it does not lift from the outer surface 6s. The end of the non-fixed side of the expansion plate 6g does not contact the contact body 16. The brake switch 11 assumes a signal state indicating that the contact body 16 is not pressed. Note that in the on state, the expansion plate 6g may touch the contact body 16 to such an extent that it is determined that the contact body 16 is not pressed.

[0026] As shown in FIG. 3, when the operating state of the brake 6 is the off state, the suction device 6e applies a suction force to the armature 6b. The armature 6b is pressed against the base body 6a by the resultant force of the suction force and the restoring force of the spring 6d. In this case, the pad 6c does not contact the brake disk 5b. The tip of the other side of the transmission pin 6f protrudes outside the base body 6a from the outer surface 6s. The tip of the other side of the transmission pin 6f pushes the central portion in the longitudinal direction of the expansion plate 6g toward the brake switch 11. The expansion plate 6g bends about the plate fixture 6h when pushed by the transmission pin 6f. The operating portion 6i, which is the end portion of the expansion plate 6g on the side opposite to the plate fixture 6h in the longitudinal direction, pushes the contact body 16. The brake switch 11 enters a signal state indicating that the contact body 16 is being pushed. Here, the distance that the operating portion 6i moves is greater than the amount that the transmission pin 6f protrudes from the outer surface 6s. That is, the expansion plate 6g serves to expand and transmit the amount of protrusion of the transmission pin 6f from the outer surface 6s.

[0027] Next, with reference to FIG. 4, the mounting position of the brake switch 11 will be described. FIG. 4 is a side view of the brake switch to which the position adjustment jig in the first embodiment is applied. In FIG. 4, the illustration of the transmission pin 6f is omitted.

[0028] FIG. 4 shows the expansion plate 6g when the brake 6 is in the on state. The housing 14 of the brake switch 11 is fixed at the mounting position. The mounting position is a distance at which the operating point of the contact body 16 satisfies the condition. Therefore, when the brake switch 11 is in the mounting position, the operating state of the brake 6 can be detected.

[0029] When the brake switch 11 is in the mounting position, in the longitudinal direction of the expansion plate 6g, the length from the end portion of the plate fixture 6h on the side opposite to the expansion plate 6g to the contact body 16 is L1. Also, the length from the end portion of the plate fixture 6h on the side opposite to the expansion plate 6g to the tip of the operating portion 6i is L2.

[0030] Also, the mounting position is such that the distance between the contact body 16 and the expanded plate 6g in the on state is separated by a specified operating distance. For example, when the brake switch 11 is in the mounting position, even if an object with a first thickness is sandwiched between the operating portion 6i and the contact body 16, it is not determined that the contact body 16 has been pushed. When an object with a second thickness is sandwiched between the operating portion 6i and the contact body 16 in the on state, it is determined that the contact body 16 has been pushed. When these determinations are realized, the conditions of the operating point are satisfied.

[0031] Specifically, the operating distance equal to the first thickness is 0.85 mm. The second thickness is 1.20 mm. In this case, when the contact body 16 has moved 0.35 mm or more, it is determined that the contact body 16 has been pushed. Thus, the accuracy required for the mounting position of the brake switch 11 is very high.

[0032] When the brake switch 11 is in the mounting position, the distance between the housing 14 and the outer surface 6s of the base body 6a is separated by a specified mounting distance L3. The mounting distance L3 varies depending on the type of the brake 6, that is, the type of the hoisting machine 5. For example, the mounting distance L3 is 8.0 mm. In the position adjustment method of the present embodiment, the mounting distance L3 is utilized.

[0033] Next, a part of the adjustment work performed by applying the position adjustment method will be described with reference to FIG. 5. FIG. 5 shows a perspective view of the brake switch when the position adjustment jig in Embodiment 1 is used.

[0034] As shown in FIG. 5, in the adjustment work, the position adjustment jig 20 is used. The position adjustment jig 20 has a thickness equal to the mounting distance. The position adjustment jig 20 is sandwiched between the base body 6a and the housing 14. The position adjustment jig 20 covers the expanded plate 6g not shown in FIG. 5. The longitudinal direction of the position adjustment jig 20 faces the longitudinal direction of the expanded plate 6g. In this state, the distance between the base body 6a and the housing 14 becomes equal to the mounting distance.

[0035] Next, the position adjustment jig 20 will be described with reference to FIGS. 6 and 7. FIG. 6 is a perspective view of the position adjusting jig in Embodiment 1. FIG. 7 is a top view of the position adjusting jig in Embodiment 1. Note that in FIGS. 6 and 7, the brake 6 and the brake switch 11 are not shown.

[0036] As shown in FIG. 6, the position adjusting jig 20 includes an adjustment unit 21 and an inspection unit 22. For example, the position adjusting jig 20 is manufactured by performing processing such as cutting on a metal plate. The adjustment unit 21 includes a brake side portion 23, a switch side portion 24, and a storage portion 25.

[0037] The brake side portion 23 is, as a first portion, a portion that contacts the outer surface 6s of the base body 6a during the adjustment operation. The brake side portion 23 is divided into at least a first end portion 23a, a second end portion 23b, and a central portion 23c. The first end portion 23a is an end portion on one side in the longitudinal direction of the adjustment unit 21. The second end portion 23b is an end portion on the side opposite to one side in the longitudinal direction of the adjustment unit 21. The central portion 23c is a portion between the first end portion 23a and the second end portion 23b.

[0038] The first end portion 23a, the second end portion 23b, and the central portion 23c are connected by a brake side surface 23s. The first end portion 23a has a first brake side surface 23sa that is a part of the brake side surface 23s. The second end portion 23b has a second brake side surface 23sb that is a part different from the first brake side surface 23sa of the brake side surface 23s. The central portion 23c has a third brake side surface 23sc that is a part of the brake side surface 23s. During the brake side surface adjustment operation, the first brake side surface 23sa, the second brake side surface 23sb, and the third brake side surface 23sc contact the outer surface 6s.

[0039] The switch side portion 24 is a portion that contacts the housing 14 of the brake switch 11 during the adjustment operation as the second portion. The switch side portion 24 is located between the first end portion 23a and the second end portion 23b in the longitudinal direction of the position adjusting jig 20. The switch side portion 24 has a switch side surface 24s that faces the opposite side of the brake side surface 23s. The switch side surface 24s is parallel to the brake side surface 23s. The switch side surface 24s is located at a mounting distance away from the brake side surface 23s in the thickness direction, which is a direction perpendicular to the brake side surface 23s. For example, the distance in the thickness direction between the switch side surface 24s and the brake side surface 23s is 8.0 mm.

[0040] The switch side portion 24 is provided with a first notch 24a and a second notch 24b. In the longitudinal direction of the position adjusting jig 20, the width of the first notch 24a is wider than the width of the contact body 16. In the longitudinal direction of the position adjusting jig 20, the width of the second notch 24b is wider than the width of the contact body 16.

[0041] The storage portion 25 is a groove that covers the expansion plate 6g and the plate fixture 6h during the adjustment operation. The storage portion 25 is located between the first end portion 23a and the second end portion 23b. The storage portion 25 is located on the side opposite to the switch side surface 24s with respect to the switch side portion 24. The storage portion 25 is a groove surrounded by the switch side surface 24s of the switch side portion 24, the first end portion 23a, the second end portion 23b, and the central portion 23c. The storage portion 25 includes a first end surface 25a and a second end surface 25b. The first end surface 25a and the second end surface 25b face each other. The first end surface 25a is the surface on the side of the first end portion 23a in the longitudinal direction of the position adjusting jig 20. The second end surface 25b is the surface on the side of the second end portion 23b in the longitudinal direction of the position adjusting jig 20.

[0042] For example, the inspection portion 22 extends in the longitudinal direction of the position adjusting jig 20 from the first end portion 23a. The inspection portion 22 is formed in a plate shape. The inspection portion 22 includes a first inspection portion 26 and a second inspection portion 27. The first inspection portion 26 and the second inspection portion 27 are portions where the thickness of the plate is different.

[0043] The thickness, which is the length in the thickness direction of the first inspection unit 26, is equal to the first thickness. For example, the thickness of the first inspection unit 26 is 0.85 mm. The thickness of the second inspection unit 27 is equal to the second thickness. For example, the thickness of the second inspection unit 27 is 1.20 mm.

[0044] As shown in FIG. 7, the storage unit 25 has a width and a height capable of storing the expansion plate 6g and the plate fixture 6h. Specifically, the width W1 between the first end face 25a and the second end face 25b is longer than the length L2 from the end on the side opposite to the expansion plate 6g of the plate fixture 6h shown in FIG. 4 to the tip of the operating part 6i. The length in the thickness direction, which is the depth of the storage unit 25, is longer than the height by which the plate fixture 6h protrudes from the outer surface 6s.

[0045] In the longitudinal direction of the position adjustment jig 20, the distance W2 from the first notch 24a to the second end face 25b is shorter than the length L1 from the end on the side opposite to the expansion plate 6g of the plate fixture 6h to the contact body 16. In the longitudinal direction of the position adjustment jig 20, the distance W3 from the second notch 24b to the first end face 25a is shorter than the length L1 from the end on the side opposite to the expansion plate 6g of the plate fixture 6h to the contact body 16.

[0046] The position adjustment method of the brake switch 11 will be described with reference to FIGS. 8 to 12. In FIGS. 8 to 12, a brake switch 11a is shown as the brake switch 11. FIG. 8 is a perspective view of the brake switch in which the preliminary determination step of the position adjustment method in Embodiment 1 has been performed. FIG. 9 is a perspective view of the brake switch in which the arrangement step of the position adjustment method in Embodiment 1 is performed. FIG. 10 is a perspective view of the brake switch in which the arrangement step of the position adjustment method in Embodiment 1 has been performed. FIG. 11 is a perspective view of the main part of the brake switch in which the inspection step of the position adjustment method in Embodiment 1 has been performed. FIG. 12 is a schematic view of the main part of the brake switch in which the inspection step of the position adjustment method in Embodiment 1 has been performed.

[0047] The position adjustment method in the adjustment operation includes a preliminary determination step, an arrangement step, a fastening step, and an inspection step. First, in the adjustment operation, the preliminary determination step is performed.

[0048] Figure 8 shows the brake switch 11 in which the preliminary determination process has been performed. In the preliminary determination process, the position of the brake switch 11 is held at the preliminary determination position by the mounting substrate 12a and a fastener 13a (not shown in Figure 8). For example, the operator holds the brake switch 11 at the preliminary determination position by loosening the fastener 13a of the fixed brake switch 11. For example, the operator holds the brake switch 11 at the preliminary determination position on the mounting substrate 12a by loosely tightening the fastener 13a to the removed brake switch 11.

[0049] Thereafter, an arrangement process and a fastening process as shown in Figures 9 and 10 are performed. In the arrangement process, the operator presses the brake side surface 23s (not explicitly shown in Figure 9) of the position adjustment jig 20 against the outer surface 6s of the base body 6a. At this time, the opening portions of the first notch 24a and the second notch 24b face the brake switch 11. Thereafter, the operator moves the position adjustment jig 20 in the direction of the brake switch 11 while pressing it against the outer surface 6s.

[0050] As shown in Figure 10, the operator sandwiches the position adjustment jig 20 between the base body 6a and the housing 14. The operator presses the housing 14 against the base body 6a. In this state, the entire brake side surface 23s is in contact with the outer surface 6s of the base body 6a. At this time, although not shown in Figure 10, in the longitudinal direction of the extension plate 6g, the first brake side surface 23sa and the second brake side surface 23sb are positioned so as to sandwich the extension plate 6g.

[0051] The extension plate 6g and the plate fixture 6h are covered by the position adjustment jig 20 in the storage portion 25. For this reason, the extension plate 6g and the plate fixture 6h do not contact the brake side surface 23s which is the first part. The brake side portion 23 which is the second part does not contact the surface of the extension plate 6g facing the brake switch 11 and the surface of the plate fixture 6h facing the brake switch 11. In this way, the position adjustment jig 20 contacts the outer surface 6s so as to avoid the extension plate 6g and the plate fixture 6h protruding from the outer surface 6s by the groove of the storage portion 25 (not shown in Figure 10).

[0052] The contact body 16 not shown in Fig. 10 exists at a position inside the first notch 24a. For this reason, the contact body 16 does not contact the switch side surface 24s which is the second part. In this way, the position adjusting jig 20 contacts the housing 14 so as to avoid the contact body 16 protruding from the housing 14 by a notch such as the first notch 24a. Also, the switch side surface 24s contacts the housing 14 at two or more positions sandwiching the contact body 16 in the longitudinal direction of the extension plate 6g among the surfaces of the housing 14.

[0053] In this state, the fastening process is performed. In the fastening process, the operator firmly tightens the fastener 13a while pressing the housing 14 against the position adjusting jig 20 so as to maintain the position of the brake switch 11 at the mounting position, that is, so that the distance between the base body 6a and the housing 14 remains the mounting distance. The brake switch 11 is fixed to the mounting substrate 12a at the mounting position. Thereafter, the operator pulls out the position adjusting jig 20 from between the base body 6a and the housing 14.

[0054] As shown in Fig. 11, after the fastening process, an inspection process is performed. The operator inspects the operating point of the brake switch 11 using the position adjusting jig 20. Specifically, the operator inserts the inspection part 22 of the position adjusting jig 20 between the contact body 16 and the extension plate 6g in the off state. The operator inspects whether the electrical signal from the brake switch 11 matches the inserted part while inserting the first inspection part 26 and the second inspection part 27 in order. The inspection process includes a first inspection process and a second inspection process.

[0055] As shown in Fig. 12, in the first inspection process, when the first inspection part 26 is inserted between the extension plate 6g and the contact body 16, the brake switch 11 does not determine that the contact body 16 has been pushed. In this case, the brake switch 11 becomes a signal state in which the brake 6 is in the operating state, that is, the on state. When the brake switch 11 is in the signal state indicating the on state, the operator determines that the electrical signal is matched. Note that the operator may determine that the electrical signal is controlled when the brake switch 11 itself is in the non-operating signal state.

[0056] In the second inspection process, when the second inspection unit 27 is inserted between the extension plate 6g and the contact body 16, the brake switch 11 determines that the contact body 16 has been pushed. In this case, the brake switch 11 enters a signal state indicating that the brake 6 is in a non-operating state, i.e., an off state. When the brake switch 11 indicates a signal state of the off state, the operator determines that the electrical signals are consistent. Note that the operator may also determine that the electrical signals are controlled when the brake switch 11 itself indicates a signal state of the operating state.

[0057] After the inspection is completed, the operator finishes the adjustment work.

[0058] Next, with reference to FIG. 13, it will be explained that the position adjustment jig 20 corresponds to both of the two brake switches 11a and 11b, that is, it is adaptable to both left and right hand operations. FIG. 13 is a perspective view of the brake switch in which the arrangement process of the position adjustment method according to the first embodiment has been performed.

[0059] The position where the brake switch 11b is attached to the mounting substrate 12b is opposite in the left-right direction compared to the brake switch 11a shown in FIG. 10. Therefore, although not shown, when attempting to accommodate the contact body 16 inside the first notch 24a of the position adjustment jig 20 as shown in FIG. 10, the extension plate 6g cannot be stored inside the storage portion 25. In this case, the entire surface of the brake side surface 23s cannot contact the outer surface 6s.

[0060] As shown in FIG. 13, the position adjustment jig 20 is used in a posture in which the contact body 16 of the brake switch 11b fits inside the second notch 24b. The distance between the second notch 24b and the first end surface 25a (not shown in FIG. 13) is shorter than the distance from the plate fixture 6h facing the brake switch 11b to the contact body 16 (not shown in FIG. 13). Therefore, although not shown in FIG. 13, the extension plate 6g and the plate fixture 6h can be covered by the position adjustment jig 20 inside the storage portion 25.

[0061] Thus, since the first notch 24a and the second notch 24b are provided, the position adjusting jig 20 can be applied to both of the two brake switches 11a and 11b attached symmetrically.

[0062] In addition, from FIG. 3 to FIG. 13, in this embodiment, an example in which the plate fixture 6h protrudes from the outer surface 6s is shown, but the plate fixture 6h may not protrude from the outer surface 6s. In this case, in the position adjusting jig 20, the length of the plate fixture 6h does not need to be considered. That is, instead of the end portion on the opposite side of the enlarged plate 6g of the plate fixture 6h, the dimensions may be determined from the end portion on the opposite side of the operating portion 6i of the enlarged plate 6g. Further, the plate fixture 6h and the enlarged plate 6g may be regarded as an integral enlarged plate 6g.

[0063] According to the first embodiment described above, the method for adjusting the position of the brake switch 11 includes an arranging step and a fastening step. In the arranging step, the position adjusting jig 20 is used. The position adjusting jig 20 includes a first portion and a second portion. The first portion has a brake side surface 23s. The second portion has a switch side surface 24s. The brake side surface 23s and the switch side surface 24s are separated by an attachment distance. In the arranging step, the position adjusting jig 20 is sandwiched between the base body 6a and the housing 14. In the fastening step, with the housing 14 pressed against the base body 6a via the position adjusting jig 20, the plate fixture 6h is tightened. At this time, with the housing 14 held in the mounting position by the force directed toward the base body 6a, the plate fixture 6h is tightened. Therefore, it is possible to suppress the position of the housing 14 from deviating from the mounting position due to the force for tightening the plate fixture 6h and the rotational friction of the plate fixture 6h. The difficulty of this adjustment work hardly depends on the skill level of the operator. As a result, the operator can easily adjust the position of the brake switch 11. For example, the operator does not have to fix the position of the brake switch 11 while adjusting it many times as in the conventional case. That is, the working time of the adjustment work can be shortened.

[0064] Further, the first part has a first end 23a and a second end 23b. The second part is located between the first end 23a and the second end 23b. In the arrangement step and the fastening step, the position adjusting jig 20 is arranged so as to sandwich the expansion plate 6g between the first end 23a and the second end 23b. By being arranged in this way, the second part faces the housing 14. Also, the brake side surface 23s contacts the base body 6a at two different points. The switch side surface 24s contacts the housing 14 between the first brake side surface 23sa and the second brake side surface 23sb. For this reason, the posture of the position adjusting jig 20 becomes a stable posture. It is possible to suppress the change in the posture of the position adjusting jig 20 due to the force pushed by the housing 14.

[0065] Also, the position adjusting jig 20 includes a storage portion 25. The expansion plate 6g has a first end face 25a and a second end face 25b. The first end face 25a and the second end face 25b are separated by a distance L2. In the position adjustment operation, the expansion plate 6g is stored inside the storage portion 25. For example, since the position adjusting jig 20 does not ride on the expansion plate 6g, it does not lift up by the amount of the expansion plate 6g. For this reason, the distance between the base body 6a and the housing 14 can be more reliably maintained at the mounting distance.

[0066] Also, in the position adjusting jig 20, the second part has a first notch 24a. In the position adjustment method, the contact body 16 is stored inside the first notch 24a. Since the contact body 16 does not ride on the switch side surface 24s, the housing 14 does not lift up by the amount of the contact body 16. For this reason, the distance between the base body 6a and the housing 14 can be more reliably maintained at the mounting distance. Also, the housing 14 and the switch side surface 24s contact at two locations sandwiching the first notch 24a. For this reason, when the housing 14 is pressed against the position adjusting jig 20, the change in the posture of the housing 14 can be suppressed.

[0067] Also, in the position adjustment jig 20, the second part has a first notch 24a and a second notch 24b. The first notch 24a is separated from the second end face 25b by a distance L1. The second notch 24b is separated from the first end face 25a by a distance L1. Therefore, the position adjustment jig 20 can be applied to either of the two brake switches 11a and 11b on the left and right. As a result, an operator can perform the adjustment work of the two brake switches 11a and 11b with one jig.

[0068] Also, the position adjustment jig 20 includes an inspection unit 22. In the position adjustment method, an inspection process is performed. In the inspection process, the operating point conditions of the brake switch 11 are confirmed using the position adjustment jig 20. Therefore, an operator can confirm the operating point conditions, that is, inspect the mounting distance, with one jig.

[0069] Note that the position adjustment method may be applied when newly attaching the brake switch 11.

[0070] Note that the switch mechanism of the brake switch 11 may be a contact. In this case, the open / closed state of the contact changes according to whether or not the contact body 16 is being pressed. The signal line 15 transmits an electrical response indicating the open / closed state of the contact.

[0071] Note that the position adjustment jig 20 does not have to be metallic. The position adjustment jig 20 may be manufactured by joining a plurality of jigs that function as each component such as the adjustment unit 21 and the inspection unit 22 into one.

Industrial Applicability

[0072] As described above, the position adjustment jig and the position adjustment method of the brake switch according to the present disclosure can be used in an elevator device.

Explanation of Reference Numerals

[0073] 1 Elevator device, 2 hoistway, 3 building, 4 machine room, 5 hoisting machine, 5a sheave, 5b brake disk, 6 brake, 6a base body, 6b armature, 6c pad, 6d spring, 6e suction device, 6f transmission pin, 6g expansion plate, 6h plate fixture, 6i operating part, 6s outer surface, 7 main rope, 8 car, 9 counterweight, 10 control device, 11, 11a, 11b brake switch, 12a, 12b mounting board, 13a, 13b fastener, 14 housing, 15 signal line, 16 contact body, 20 position adjustment jig, 21 adjustment part, 22 inspection part, 23 brake side part, 23a first end part, 23b second end part, 23c central part, 23s brake side surface, 23sa first brake side surface, 23sb second brake side surface, 23sc third brake side surface, 24 switch side part, 24a first notch, 24b second notch, 24s switch side surface, 25 storage part, 25a first end face, 25b second end face, 26 first inspection part, 27 second inspection part

Claims

1. A position adjustment jig used when adjusting the position of a brake switch attached to face an extension plate whose position changes according to the operating state of a brake with respect to a base body of a brake of an elevator hoist, wherein: a first part having a brake side surface; a second part facing the opposite side of the brake side surface and having a switch side surface separated from the brake side surface by an attachment distance; comprising: the attachment distance is the distance from the housing of the brake switch that supports a contact body that contacts the extension plate to the base body when the brake switch is in the attachment position; the first part: a first end having a first brake side surface that is a part of the brake side surface; a second end having a second brake side surface that is another part of the brake side surface different from the first brake side surface of the brake side surface; having: the second part is located between the first end and the second end when viewed from a direction perpendicular to the brake side surface, When the position of the brake switch is adjusted, the extension plate is disposed between the first end and the second end in the longitudinal direction of the extension plate, and when the first end and the second end are in contact with the base body on the brake side surface, the position adjustment jig in which the brake side surface of the second part is in contact with the housing.

2. a storage part surrounded by the first end, the second end, and the second part; further comprising: The position adjustment jig according to claim 1, wherein when the first end and the second end are in contact with the base body on the brake side surface and the second part is in contact with the housing on the switch side surface, the extension plate is located inside the storage part.

3. The storage part has a first end face on the side of the first end part and a second end face on the side of the second end part, and the distance between the first end face and the second end face is larger than the length in the longitudinal direction of the expansion plate. The position adjusting jig according to claim 2.

4. The second part is On the side surface of the switch, a first notch that is provided at a position separated from the second end face by the distance from the end on the side opposite to the contact body of the expansion plate to the contact body and is wider than the contact body, and On the side surface of the switch, a second notch that is provided at a position separated from the first end face by the distance from the end on the side opposite to the contact body of the expansion plate to the contact body and is wider than the contact body, and The position adjusting jig according to claim 3, which has.

5. The second part is the position adjusting jig according to claim 1, which has a first notch wider than the contact body on the side surface of the switch.

6. An inspection part including a first inspection part having a first thickness and a second inspection part having a second thickness, Further comprising, The first thickness is a thickness at which the contact body is not determined to be pushed when sandwiched between the expansion plate and the contact body when the brake is in the on state, The second thickness is the thickness at which the contact body is determined to be pushed when sandwiched between the expansion plate and the contact body when the brake is in the on state. The position adjusting jig according to claim 1.

7. In a brake switch attached to face an expansion plate whose position changes according to the operating state of a brake with respect to a base of a hoisting machine of an elevator, a method for adjusting the position of the brake switch so that the brake switch becomes an attachment position capable of detecting the operating state, An arranging step of sandwiching the position adjusting jig according to any one of claims 1 to 6 between the housing not fixed to the base and the base, A fastening step that is performed after the placement step and tightens a fixture for fixing the housing to the base while maintaining a state in which the positioning jig is sandwiched between the housing and the base. comprising A method for adjusting the position of a brake switch, in which, in the placement step, the positioning jig is placed such that the brake side surface contacts the base and the switch side surface contacts the housing. Claim 8 An inspection step that is performed after the fastening step, and inspects that the brake switch indicates an on state by sandwiching a first inspection part having a first thickness of the positioning jig between the expansion plate and the contact body when the brake is in the on state, and inspects that the brake switch indicates an off state by sandwiching a second inspection part having a second thickness of the positioning jig between the expansion plate and the contact body when the brake is in the on state. The method for adjusting the position of a brake switch according to claim 7, further comprising the above.

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